WO2021135047A1 - 链锯 - Google Patents

链锯 Download PDF

Info

Publication number
WO2021135047A1
WO2021135047A1 PCT/CN2020/091341 CN2020091341W WO2021135047A1 WO 2021135047 A1 WO2021135047 A1 WO 2021135047A1 CN 2020091341 W CN2020091341 W CN 2020091341W WO 2021135047 A1 WO2021135047 A1 WO 2021135047A1
Authority
WO
WIPO (PCT)
Prior art keywords
host
battery pack
chain saw
equal
safety
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/091341
Other languages
English (en)
French (fr)
Inventor
李立
戴开超
张陈中
伍和坤
李海燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to EP20911026.1A priority Critical patent/EP4056307B1/en
Publication of WO2021135047A1 publication Critical patent/WO2021135047A1/zh
Priority to US17/835,291 priority patent/US11518059B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • B27B17/0008Means for carrying the chain saw, e.g. handles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • B27B17/02Chain saws equipped with guide bar
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/30Batteries in portable systems, e.g. mobile phone, laptop

Definitions

  • the present application relates to a chain saw, for example, to a chain saw.
  • chain saws are widely used in households, gardens and other fields.
  • the energy device that provides the energy source is usually directly installed on the main machine of the chain saw, which makes the main machine heavy and inconvenient for the user to operate.
  • the present application provides a chain saw, which can be convenient for users to operate.
  • the embodiment of the present application provides a chain saw, including: a host; a battery pack for providing energy to the host, and the battery pack and the host are separately arranged; a connecting component for connecting the host and the battery pack so that the battery pack and the host form an electrical connection
  • the host includes: a chain, used to realize the cutting function; a guide plate, used to support the chain; a motor, used to drive the chain to move; a housing, used to accommodate at least part of the motor; wherein the connecting component and the host or battery pack constitute a detachable connection ;
  • the guide plate extends forward to the outside of the case, and the ratio of the weight of the host to the length of the part of the guide plate extending out of the case is greater than or equal to 7.5kg/m and less than or equal to 14.5kg/m.
  • connection assembly includes a safety element, and when the force received by the safety element is greater than or equal to a preset safety value, the safety element is opened to make the connection assembly disconnect the connection between the battery pack and the host.
  • connection assembly further includes: a safety rope, the safety element is installed to the safety rope; the safety element is used to connect with the host.
  • connection assembly further includes: a mounting base for installing the battery pack; a power cord, including a first end for connecting with the battery pack or the mounting base and a second end for connecting with the host; wherein, the first end of the power cord The two ends form a detachable connection with the host.
  • the casing includes: a power plug-in interface with access terminals inside; wherein the second end of the power cord is provided with a power output interface that forms a detachable connection with the power plug-in interface; the safety element is a safety valve, When the force on the valve is greater than or equal to the preset safety value, the safety valve opens so that the safety element is disconnected from the host, and the power cord is disconnected from the power plug-in interface.
  • the preset safety value is greater than or equal to 15 pounds and less than or equal to 400 pounds.
  • the preset safety value is greater than or equal to 25 pounds and less than or equal to 200 pounds.
  • the mounting base includes: a base for combining the battery pack; a connecting piece for mounting the mounting base to the user's waist belt; wherein the connecting piece is a flexible piece.
  • the mounting base includes: a base for combining the battery pack; a first connecting member for mounting the mounting base to the user's waist belt in a first connection manner; and a second connecting member for attaching the mounting base to the user's waist belt in a second connection manner.
  • the mounting seat is installed on the user's waist belt; the first connecting piece is a non-flexible piece, and the second connecting piece is a flexible piece.
  • connection assembly includes: a mounting base for installing the battery pack; a power cord, including a first end for connecting with the battery pack or the mounting base and a second end for connecting with the host;
  • the mounting base includes: a base, with In combination with the battery pack; connecting piece, used to install the mounting seat to the user's waist belt; wherein the connecting piece is a flexible piece.
  • connection assembly further includes: a mounting base for mounting the battery pack; the power cord includes a first end for connecting with the battery pack or the mounting base and a second end for connecting with the host.
  • the safety rope surrounds the surface of the power cord.
  • the length of the safety rope is basically fixed.
  • the safety rope is an inelastic rope.
  • the ratio of the length of the power cord to the length of the part of the guide plate extending out of the casing is greater than or equal to 2 and less than or equal to 10.
  • the power cord includes a wire core; an insulating sleeve surrounding the wire core; the safety rope has a length direction, the safety rope is formed with a through hole passing through the safety rope along the length direction, and at least one end of the insulating sleeve passes through the safety rope.
  • the casing includes a main handle, the main handle is arranged on the upper side of the casing, the power insertion interface is arranged on the left side of the main handle, and the guide plate is arranged on the right side of the main handle.
  • the casing further includes: a front end surface formed with a front port through which the guide plate extends; a rear end surface opposite to the front end surface; wherein, in the front-rear direction, the power insertion interface is provided between the front end surface and the rear end surface .
  • the power plug-in interface is formed with a rear-open connection port, and the second end of the power cord is inserted into the power plug-in port from the connection port.
  • the ratio of the weight of the main body to the length of the part of the guide plate extending out of the casing is greater than or equal to 8.5 kg/m and less than or equal to 13 kg/m.
  • the ratio of the output power of the motor to the weight of the host is greater than or equal to 250 W/kg and less than or equal to 800 W/kg.
  • the battery pack is separated from the host, so that the user can operate the chain saw more easily and conveniently.
  • Figure 1 is a perspective view of the chain saw in this embodiment
  • Figure 2 is a perspective view of the chain saw in Figure 1 from another direction;
  • Figure 3 is a perspective view of the chain saw in Figure 1 when the energy device is separated from the host;
  • Figure 4 is a perspective view of the host in the chain saw in Figure 1;
  • Figure 5 is a plan view of the host in Figure 4.
  • Figure 6 is a top view of the host in Figure 4.
  • Fig. 7 is a perspective view of the host in Fig. 4 when the left housing part is separated;
  • Figure 8 is a perspective view of the host in Figure 4 when the brake cover is opened;
  • Figure 9 is a plan view of the host in Figure 4 when the guide plate is removed;
  • Figure 10 is a cross-sectional view of the structure shown in Figure 9;
  • Figure 11 is a plan view of the structure shown in Figure 9 when the left housing part is disassembled;
  • Figure 12 is a perspective view of the structure shown in Figure 9 when the cover is opened;
  • Figure 13 is a perspective view of the structure shown in Figure 9 when the right housing part is disassembled;
  • Figure 14 is a plan view of the brake band in Figure 13;
  • Figure 15 is a perspective view of the host in Figure 4 when the main handle is separated;
  • Figure 16 is an enlarged view of a part of the structure in Figure 15;
  • Figure 17 is a perspective view of the structure shown in Figure 9 when the main handle and the auxiliary handle are separated;
  • Figure 18 is a plan view of the switch assembly in Figure 17;
  • FIG. 19 is a perspective view of the host in FIG. 4 when the left housing part is disassembled;
  • Figure 20 is a perspective view of the oil can and part of the alarm device in Figure 19;
  • Figure 21 is a plan view of the structure shown in Figure 20;
  • Figure 22 is a cross-sectional view of the power cord and safety rope in Figure 1;
  • Figure 23 is a perspective view of the mounting seat in Figure 1;
  • Figure 24 is another perspective view of the mounting seat in Figure 1;
  • Figure 25 is a perspective view of the mounting seat in Figure 23 when the second connecting member is disassembled;
  • Figure 26 is a perspective view of the mounting member in Figure 23 when the second connecting member is separated;
  • Fig. 27 is a perspective view of the structure shown in Fig. 25 when the base is opened, in which the ejection member is ejected by the elastic member;
  • Fig. 28 is a perspective view of the structure shown in Fig. 25 when the base is opened, in which the pole pieces are exposed.
  • the chain saw 100 shown in FIG. 1 is an electric tool, and the electric tool also includes functional elements that can realize its functions.
  • the functional element is a chain 231.
  • the chain saw 100 realizes the function of cutting wood by driving the chain 231 to move.
  • the chain saw 100 includes an energy device 10, a host 20 and a connecting component 3.
  • the energy device 10 is used to provide energy to the host 20.
  • the energy device 10 is a battery pack 11.
  • the host 20 includes the aforementioned chain 231, and the host 20 drives the chain 231 to move to cut wood.
  • the host 20 and the battery pack 11 are arranged separately, that is, the battery pack 11 is not directly installed on the outer surface of the host 20. In this way, the weight of the host 20 can be reduced, which is convenient for the user to operate the host 20, and can also reduce the long-term operation of the user.
  • the fatigue of the host computer 20 improves work efficiency.
  • the connecting component 3 is used to connect the energy device 10 and the host 20 so as to realize the transfer of the energy output by the energy device 10 to the host 20.
  • the energy device 10 includes a battery pack 11, and the connecting assembly 3 connects the host 20 and the battery pack 11 so that the battery pack 11 and the host 20 form an electrical connection.
  • the connection assembly 3 includes a power cord 30, and the host 20 is electrically connected to the battery pack 11 through the power cord 30, that is, the battery pack 11 provides energy to the host 20 through the power cord 30.
  • connection assembly 3 further includes a mounting base 40 for mounting the battery pack 11, and the power cord 30 is electrically connected to the mounting base 40, so that the battery pack 11 is electrically connected to the power cord 30 through the mounting base 40 , And then output the electrical energy to the host 20.
  • the power cord 30 includes a first end 31 for electrically connecting to the battery pack 11 and a second end 32 for electrically connecting to the host 20.
  • the first end 31 of the power cord 30 is connected to the mounting base 40 where the battery pack 11 is installed to realize the electrical connection between the power cord 30 and the battery pack 11.
  • the first end 31 of the power cord 30 and the mounting base 40 form a fixed connection.
  • the first end of the power cord can also be detachably connected to the mounting base.
  • the second end 32 of the power cord 30 forms a detachable connection with the host 20.
  • the first end 31 of the power cord 30 is connected with a power output interface 33.
  • the host 20 has a corresponding power insertion interface 244, and the power output interface 33 can be detached.
  • the first end 31 of the power cord 30 is detachably connected to the host 20, so that when the host 20 receives an external force, the host 20 can be separated from the power cord 30 and out of the user's control to avoid harm to the user.
  • the ratio of the output power of the motor 22 to the weight of the host 20 is greater than or equal to 250 W/kg and less than or equal to 800 W/kg. In some other embodiments, the ratio of the output power of the motor 22 to the weight of the host 20 is greater than or equal to 350 W/kg and less than or equal to 600 W/kg. In this way, while reducing the weight of the whole machine, the host 20 can output a larger power, thereby ensuring the cutting performance. In this embodiment, the weight of the host 20 is greater than or equal to 3 kg and less than or equal to 4.5 kg. The output power of the motor 22 is greater than or equal to 1500W.
  • the host 20 further includes: a switch assembly 21, a guide plate 233, a motor 22 and a casing 24.
  • the switch assembly 21 is used for the user to operate to start the chain saw 100.
  • the guide plate 233 is used to support the chain 231.
  • the motor 22 is used to drive the chain 231 to move.
  • the casing 24 is formed with a receiving cavity 241, the motor 22 is at least partially disposed in the receiving cavity 241, and the guide plate 233 is partially disposed in the casing 24, and the guide plate 233 can extend forward to the outside of the casing 24.
  • the switch assembly 21 is at least partially disposed in the casing 24, and the switch assembly 21 is used to start the motor 22. Please refer to FIGS.
  • the casing 24 includes a main body 242, a main handle 243 and the above-mentioned power plug-in interface 244.
  • the main handle 243 is used for the user to hold, the main body 242 is formed with an accommodation space for accommodating the motor 22, and the power plug-in interface 244 is used to cooperate with the power cord 30 to realize electrical connection.
  • the main handle 243 is arranged on the upper side of the casing 24, the power insertion interface 244 is arranged on the left side of the main handle 243, and the guide plate 233 is arranged on the right side of the main handle 243.
  • the motor 22 is located below the main handle 243.
  • the main handle 243 is provided on the upper side of the main body 242. In this way, the center of gravity G of the host 20 is located below the main handle 243, and when the user holds the main handle 243 to operate the host 20, the running stability of the host 20 is ensured.
  • the ratio of the weight of the main body 20 to the length L2 of the portion of the guide plate 233 extending out of the casing 24 is greater than or equal to 6 kg/m and less than or equal to 20 kg/m. In this way, even when the guide plates 233 of different lengths or sizes are installed, the center of gravity G of the host 20 will not change greatly, so that the balance performance of the whole machine can be improved. Moreover, when the length L2 of the part of the main body 20 extending from the guide plate 233 to the outside of the casing 24 meets the needs of the user, the change in the weight of the main body 20 can be adapted to the needs of the user and can be accepted by the user, thereby satisfying the work Improve work efficiency when required. In some other embodiments, the ratio of the weight of the host 20 to the length L2 of the portion of the guide plate 233 extending out of the casing 24 is greater than or equal to 8.5 kg/m and less than or equal to 13 kg/m.
  • the power plug-in interface 244 is formed with a connection port 2441 that opens backward.
  • the power output port 33 of the power cord 30 is inserted into the power plug-in port 244 from the connection port 2441.
  • the connection port 2441 is provided with an access terminal, and the power cord 30
  • the power output interface 33 is provided with output terminals, and the battery pack 11 can provide energy to the motor 22 through the output terminal of the power cord 30 and the access terminal inside the connection port 2441.
  • the casing 24 includes a front surface 245 and a rear surface 246.
  • the motor 22 is disposed between a front end surface 245 and a rear end surface 246.
  • the front end surface 245 is located on the front side of the casing 24.
  • the front end surface 245 is formed with a front port through which the guide plate 233 can extend.
  • the rear end surface 246 is disposed on the rear side of the front end surface 245. , Opposite to the front face 245.
  • the power plug-in interface 244 is provided between the front face 245 and the back face 246, that is, the power plug-in interface 244 is not provided on the front face 245, nor is it provided on the rear face 246.
  • the size of the host 20 in the front-to-rear direction is small, thereby facilitating the operation of the user, and the transportation and storage.
  • arranging the power insertion interface 244 between the front face 245 and the rear face 246 also enables the rear face 246 to effectively protect the power insertion interface 244 from being damaged, and also prevents foreign objects, such as tree branches, from being scratched and inserted into the power source.
  • the second end 32 of the power cord 30 connected to the interface 244 causes an unstable connection between the power cord 30 and the power plug-in interface 244.
  • the distance L between the power insertion interface 244 and the center of gravity G is less than or equal to 100 mm. In the front-rear direction, the distance L between the power insertion interface 244 and the center of gravity G is less than or equal to 80 mm. In this way, the power insertion interface 244 is arranged close to the center of gravity G, so that when the power cord 30 is connected to the host 20, the power cord 30 has little effect on the balance of the host 20, thereby facilitating user operations and improving work efficiency.
  • the center of gravity G is also set within a preset distance range on the front side of the power plug-in interface 244. In this way, when the power plug-in interface 244 is connected to the power cord 30, the host 20 can be slightly tilted. In this way, It is convenient for the user to operate the host 20 stably.
  • the guide plate 233 extends in the first plane P1, the rear end surface 246 at least partially extends in the second plane P2, the first plane P1 is substantially perpendicular to the second plane P2, and the distance L1 from the power insertion port 244 to the second plane P2 is greater than or equal to 80 mm And less than or equal to 100mm.
  • the main handle 243 includes a front end 2431, a rear end 2432 and a main grip 2433. In the front-to-back direction, the motor 22 is arranged between the front end 2431 and the rear end 2432.
  • the main handle 243 is connected to the main body 242, and the front end 2431 is fixedly connected to the main body 242 or integrally formed. The same is the rear end 2432. It is fixedly connected to the main body 242 or integrally formed.
  • the power insertion interface 244 is disposed between the front end 2431 and the rear end 2432, so that the distance between the power insertion interface 244 and the center of gravity G of the host 20 is small.
  • the main grip portion 2433 is the user's main grip area, that is, the main grip portion 2433 is provided between the front end portion 2431 and the rear end portion 2432, that is, the power plug-in interface 244 is provided directly below the main grip portion 2433, which can improve Smoothness of operation.
  • the host 20 further includes: a fan 221, a sprocket 232, a heat dissipation substrate 25, a circuit board 26, and an oil can 27.
  • the fan 221 is arranged in the accommodating cavity 241, and the fan 221 is connected to the motor 22 and can rotate with the operation of the motor 22.
  • the sprocket 232 is connected with the chain 231 for driving the chain 231 to move.
  • the heat dissipation substrate 25 is used to guide the flow of the heat dissipation airflow generated when the fan 221 rotates.
  • the circuit board 26 is arranged in the casing 24 and arranged on the rear side of the motor 22.
  • the heat dissipation substrate 25 is also in contact with the circuit board 26, so that the heat generated by the circuit board 26 during operation can be directly transferred to the heat dissipation substrate 25, and then the heat is taken away by the heat dissipation airflow.
  • the oil can 27 is used to lubricate the guide plate 233 and the chain 231, and the oil can 27 is at least partially disposed in the accommodating cavity 241.
  • the motor 22 is arranged between the heat dissipation substrate 25 and the oil can 27, and the motor 22 is also arranged between the circuit board 26 and the oil can 27.
  • the center of gravity G of the host 20 can be set close to the motor 22 and the oil can 27, and the motor 22 and the oil can 27 are relatively heavier than other parts, so that the balance of the host 20 is improved and the motor 22 is easily arranged.
  • the center of gravity G is also set between the oil can 27 and the motor 22. In this way, the oil can 27 and the motor 22 are relatively close to the center of gravity G, so that the oil stored in the oil can 27 is relatively close to the center of gravity G. How much has little effect on the change in the position of the center of gravity G.
  • the motor 22 includes a motor shaft 222, the motor shaft 222 can rotate around the first axis 101, and the motor shaft 222 drives the sprocket 232 to drive the chain 231 to move, the fan 221 is mounted to the motor shaft 222, the motor The shaft 222 drives the fan 221 to rotate.
  • the first axis 101 of the motor shaft 222 is perpendicular to the first plane P1, and the guide plate 233 extends forward out of the casing 24, that is, the motor 22 is arranged in the left-right direction.
  • the power plug-in interface 244 may be provided at one end of the motor 22 in the direction of the first axis 101.
  • the power insertion interface 244 is arranged close to the fan 221.
  • the power insertion interface 244 may be arranged at one end of the fan 221.
  • the host 20 further includes a bracket 247 for supporting the motor 22, and the bracket 247 is arranged in the main body 242.
  • the bracket 247 partitions the accommodating cavity 241 into a left space 2411 and a right space 2412.
  • the motor shaft 222 of the motor 22 extends from the left space 2411 to the right space 2412, the stator of the motor 22 is located in the left space 2411, the sprocket 232 is set in the right space 2412, and the oil pot 27, the fan 221 and the circuit board 26 are set in The left space 2411, in this way, the host 20 has a better balance in the left and right directions.
  • the casing 24 is provided with a main air inlet 2424 for air flow into the accommodating cavity 241 and an air outlet 2425 for air flow out.
  • a first heat dissipation airflow 24a is generated in the casing 24 from the main air inlet 2424 into the casing 24 and then flows out from the air outlet 2425.
  • a first airflow channel 24d is provided in the casing 24, and the first airflow channel 24d is used to guide the flow direction of the first heat dissipation airflow 24a, so as to realize the heat dissipation of the motor 22 and the circuit board 26.
  • the first air flow passage 24d is formed by surrounding the bracket 247 and the side wall of the cabinet 24.
  • the heat dissipation substrate 25 in the left space 2411 guides the first heat dissipation airflow 24a to flow in the first direction A.
  • the first heat dissipation airflow 24a is constrained by the side wall of the bracket 247.
  • the first heat dissipation airflow 24a flows through the stator of the motor 22, and finally from the air outlet 2425 is discharged to realize the heat dissipation of the motor 22 and the circuit board 26.
  • the fan 221 is a centrifugal fan.
  • the path through which the first heat dissipation airflow 24a flows is located in the left space 2411 and does not pass through the right space 2412.
  • the sprocket 232 is arranged in the right space 2412, and the chain 231 and the guide plate 233 are also partially arranged in the right space 2412. In this way, dust, such as wood chips, dust, etc., may be generated in the right space 2412.
  • the circulation path of the first heat dissipation airflow 24a is arranged in the left space 2411. In this way, on the one hand, during the flow of the first heat dissipation airflow 24a, the dust in the right space 2412 will not be sucked.
  • the first heat-dissipating airflow 24a can also form an airflow barrier in the casing 24 during the flow process. The airflow barrier also has an obstructive effect on the dust in the right space 2412, thereby prolonging the use of the chain saw 100. life.
  • the main air inlet 2424 is arranged on the left side of the main handle 243, and the guide plate 233, the sprocket 232 and the chain 231 are arranged on the right side of the main handle 243.
  • dust and wood chips are generally formed on the left side of the main handle 243, and the main air inlet 2424 is provided on the right side of the main handle 243, so that dust and wood chips can be reduced from the main air inlet 2424. Enter into the cabinet 24.
  • the main air inlet 2424 is arranged close to the circuit board 26 and the heat dissipation substrate 25. In order to prevent the wind discharged from the air outlet 2425 from affecting user operations, the air outlet 2425 is opened downward.
  • the main body part 242 includes a left housing part 2421 and a right housing part 2422, and the main air inlet 2424 and the air outlet 2425 are both provided on the left housing part 2421.
  • the power insertion interface 244 is disposed above the air outlet 2425, so that dust from the air outlet 2425 can be effectively prevented from entering the power insertion interface 244.
  • the right housing portion 2422 has an opening 2423, which is arranged opposite to the main air inlet 2424.
  • the heat dissipation base plate 25 includes a plurality of fins, and an airflow guide is formed between two adjacent fins. The guide channel.
  • the airflow enters the casing 24 from the main air inlet 2424 and will bring in dust D.
  • the dust D will accumulate between the fins or fall on the bottom of the casing 24 and affect the operation of the host 20.
  • the main air inlet 2424 is provided at one end of the guide channel, and the opening 2423 is provided at the other end of the guide channel.
  • the guide channel guides the first heat dissipation airflow 24a to flow along the first direction A.
  • the first heat dissipation airflow 24a After the first heat dissipation airflow 24a flows along the first direction A for a period of time, it will be turned to flow along the second direction under the action of the first airflow channel 24d.
  • the turned first heat dissipation airflow 24a flows to the motor 22, and the dust D contained in the first heat dissipation airflow 24a will continue to move in the first direction A under the action of inertia, so that a part of the dust D and the first heat dissipation airflow 24a Separation, thereby reducing the dust D flowing through the motor 22, thereby prolonging the service life of the motor 22.
  • the opening 2423 is arranged in the first direction A, so that the dust D will accumulate near the opening 2423.
  • the casing 24 further includes a cover 2429 for sealing the opening 2423, and the cover 2429 is detachably connected to the casing 24.
  • the main air inlet 2424 is provided on the left housing portion 2421.
  • the opening 2423 and the cover plate 2429 are provided on the right housing part 2422.
  • the cover 2429 is connected to the casing 24 by screws, which can prevent the cover 2429 from accidentally detaching from the casing 24.
  • the cover 2429 closes the opening 2423, so as to prevent the first heat dissipation airflow 24a from flowing out of the opening 2423.
  • the first heat dissipation airflow 24a enters the casing 24 from the main air inlet 2424.
  • the first heat dissipation airflow 24a first flows along the first direction A, and then the first heat dissipation airflow 24a flows in the first direction A.
  • the first airflow channel 24d guides the first heat dissipation airflow 24a to turn to flow toward the motor 22.
  • the dust D contained in the first heat dissipation airflow 24a will continue to follow the first heat dissipation airflow 24a under the action of inertia.
  • the direction A flows to accumulate at the opening 2423, and the first heat dissipation airflow 24a flows out of the air outlet 2425 to the outside of the casing 24 after flowing through the motor 22.
  • more dust D will accumulate at the opening 2423, and more dust D will also adhere to the heat dissipation substrate 25.
  • the user can remove the cover 2429, the opening 2423 formed by the casing 24 opens to the right, and the user uses an air gun or other means to clean the dust D at the opening 2423 on the heat dissipation substrate 25.
  • the opening 2423 and the main air inlet 2424 are respectively provided at both ends of the heat dissipation substrate 25.
  • the main air inlet 2424 is provided on the left side of the casing 24, and the main air inlet 2424 guides the first heat dissipation airflow 24a into the casing 24 from left to right.
  • the air outlet 2425 is provided on the lower side of the casing 24, and the air outlet 2425 guides the first heat dissipation airflow 24a to flow out of the casing 24 from top to bottom.
  • the flow direction of the first heat dissipation airflow 24a when it enters the casing 24 from the main air inlet 2424 and its flow direction when it flows out from the air outlet 2425 are perpendicular to each other.
  • the chain saw 100 further includes a brake assembly 60 and a brake cover 61.
  • the brake assembly 60 is used for the user to brake the host 20 during high-altitude operations, so as to protect the safety of the user.
  • the brake cover 61 and the main body 242 form a detachable connection, and a space for accommodating the brake assembly 60 is formed between the brake cover 61 and the main body 242.
  • the brake cover 61 is connected to the main body 242 by screws. When the brake cover 61 is removed, the brake assembly 60 is exposed, so that the brake assembly 60 can be repaired and the dust on the brake assembly 60 can also be cleaned.
  • An opening that opens forward is formed between the brake cover 61 and the main body 242, and the opening is used for the guide plate 233 to extend out of the casing 24.
  • the opening 2423 is provided on the rear side of the brake assembly 60, and the cover 2429 is provided on the rear side of the brake cover 61, so that the dust D will not flow back to the brake assembly 60.
  • a fuse 234 is also provided in the casing 24, and the fuse 234 is provided in the main handle 243.
  • the fuse 234 is used to protect the circuit and prevent a large current in the circuit from damaging the components in the host 20. When the host 20 is running, the fuse 234 will generate a lot of heat, which easily causes the aging of the housing 24 and affects the use of the host 20.
  • a first auxiliary air inlet 2434 is formed on the main handle 243, and the first auxiliary air inlet 2434 is opened near the fuse 234.
  • the second heat dissipation airflow enters the main handle 243 from the first auxiliary air inlet 2434 and flows through the fuse 234, and the rotation of the fan 221 generates a negative pressure, which draws the second heat dissipation airflow into the left In the side space 2411, the second heat-dissipating airflow enters the motor 22 along the side wall of the bracket 247, and is finally discharged from the air outlet 2425.
  • the casing 24 further includes a capacitor 235, which is disposed in the main body 242.
  • the capacitor 235 When the host 20 is running, the capacitor 235 generates a lot of heat, which easily causes the casing 24 to rapidly age.
  • a second auxiliary air inlet 2426 is formed on the left housing portion 2421, and the second auxiliary air inlet 2426 is opened near the capacitor 235.
  • the third heat dissipation airflow enters the main body 242 from the second auxiliary air inlet 2426, flows through the capacitor 235, and the rotation of the fan 221 generates a negative pressure, which draws the third heat dissipation airflow into the motor 22. Finally, it is discharged from the air outlet 2425.
  • the first heat dissipation airflow 24a, the second heat dissipation airflow, and the third heat dissipation airflow can all dissipate the motor 22, thereby prolonging the service life of the motor 22.
  • the brake assembly 60 includes a brake plate 63, a signal assembly, a linkage assembly 64 and a brake band 65, and the signal assembly includes a Hall element 621 and a magnetic element 622.
  • the brake plate 63 is rotatably connected to the casing 24, and the brake plate 63 is used for operation by the user.
  • the signal component is used to implement electronic braking on the motor 22.
  • the Hall element 621 is located inside the casing 24, and the magnetic element 622 is installed on the brake plate 63. By rotating the brake plate 63, the magnetic field around the magnetic element 622 changes, triggering the Hall element 621 to generate a signal, thereby controlling the motor 22 through the control circuit. Perform electronic brakes.
  • the linkage assembly 64 is connected to the brake plate 63 and the brake band 65 respectively, and the linkage assembly 64 is used to realize power transmission between the brake plate 63 and the brake band 65.
  • the linkage assembly 64 drives the brake belt 65 to tension so as to mechanically brake the sprocket 232.
  • the signal component will electronically brake the motor 22, on the other hand, the brake band 65 will mechanically brake the sprocket 232, which can improve the safety of the host 20 performance.
  • the brake plate 63 has three legs, which are a first brake leg 631 and a second brake leg 632 and a third brake leg 633, respectively.
  • the first brake leg 631 is connected to the linkage assembly 64.
  • the first brake leg 631 drives the linkage assembly 64 to move, and the linkage assembly 64 drives the brake belt 65 to mechanically brake the sprocket 232.
  • the second brake leg 632 is connected to the signal assembly, the magnetic member 622 is fixedly connected to the second brake leg 632, and the Hall element 621 is mounted to the casing 24.
  • the brake plate 63 rotates relative to the casing 24, the position of the magnetic member 622 relative to the Hall element 621 changes, thereby driving the Hall element 621 to send an electrical signal to the control circuit, so that the control circuit electronically brakes the motor 22.
  • the electronic brake performed by the signal component is earlier than the mechanical brake performed by the brake band 65. In other words, before the brake band 65 brakes the sprocket 232, the control circuit is already performing electronic braking on the motor 22. brake.
  • the third brake leg 633 is used to rotatably mount the brake plate 63 to the casing 24.
  • the first brake leg 631 and the second brake leg 632 are arranged on the right side of the main handle 243, the third brake leg 633 is arranged on the left side of the main handle 243, and the Hall element 621 is fixedly arranged in the main handle 243.
  • the Hall element is fixedly arranged in the main body.
  • the brake band 65 includes: a first section 651, a braking section 652 and a second section 653.
  • the first section 651 is connected to the brake plate 63 through the linkage assembly 64.
  • the brake section 652 surrounds the sprocket 232 and is used to lock the rotation of the sprocket 232.
  • the second section 653 is connected to the casing 24 so as to install the brake band 65 to the casing 24.
  • the braking section 652 is a circular arc
  • the first section 651 is set at one end of the circular arc
  • the second section 653 is set at the other end of the circular arc.
  • the first section 651 extends in a straight line from one end of the arc, and then is bent 180 degrees to form a curved hook.
  • the second section 653 extends in a straight line from the braking section 652, and the second section 653 is no longer bent, that is, the second section 653 is completely a straight section.
  • the second section 653 extends from the other end of the arc in the up and down direction to form a straight section, so as to prevent the brake band 65 from being bent multiple times to affect the structural strength and at the same time save space.
  • the brake assembly 60 also includes a limiting member 66 for preventing the second section 653 from moving freely, the limiting member 66 is fixedly connected to the casing 24, and the limiting member 66 and the second section 653 are connected by a pin 661.
  • the limiting member 66 is mounted to the casing 24, the limiting member 66 is formed with an insertion hole, the second section 653 extends into the limiting member 66 through the insertion hole, and the limiting member 66 is provided with a pin 661 inside, The pin 661 passes through the mounting hole formed on the second section 653 to confine the second section 653 in the limiting member 66.
  • the casing 24 is a plastic part. If the second section 653 of the brake band 65 is directly installed through the casing 24, this will easily cause the casing 24 to wear and make the installation of the brake band 65 unstable.
  • both the stop member 66 and the pin 661 are metal parts, which can reduce the wear on the casing 24 and can also enhance the stability of the installation of the brake band 65.
  • the switch assembly 21 is installed to the main handle 243.
  • the switch assembly 21 includes a trigger switch 211 and a trigger 212.
  • the trigger switch 211 is electrically connected to the motor 22, and the trigger 212 is used for user operation.
  • a handle space 2435 is formed around the main handle 243, the trigger 212 is rotatably connected to the main handle 243 for user operation, and the trigger switch 211 is disposed in the handle space 2435.
  • the trigger 212 rotates relative to the casing 24 about the first rotation axis 103, and rotates from the initial position to the start position to trigger the trigger switch 211 to start the motor 22.
  • the start position in this application refers to the position where the trigger switch 211 is closed during the rotation of the trigger 212 to realize the start of the motor 22, that is, the position where the trigger switch 211 can be closed during the rotation of the trigger 212 can be the start position.
  • the stop position refers to the position where the trigger switch 211 can be turned off during the rotation of the trigger 212 can be the stop position.
  • the switch assembly 21 further includes a rotating member 213, and the rotating member 213 is rotatably disposed in the handle space 2435.
  • the rotating member 213 can be driven by the trigger 212 to trigger the trigger switch 211 to close.
  • the trigger 212 drives the rotating member 213 to rotate around the second rotation axis 104 to trigger the trigger switch 211, thereby starting the chain saw 100.
  • the rotating member 213 includes a contact portion 2132 and a driving portion 2131, the contact portion 2132 is in contact with the trigger 212, and the trigger 212 includes a protrusion 2121 that cooperates with the contact portion 2132.
  • the driving part 2131 is used to contact the trigger switch 211 to trigger the trigger switch 211.
  • the trigger switch 211 includes a push rod 2111 that can be triggered, and the push rod 2111 extends substantially along the direction of the center line 105.
  • the protrusion 2121 of the trigger 212 pushes the rotating member 213 to rotate around the second rotation axis 104, the driving portion 2131 of the rotating member 213 triggers the push rod 2111 during the rotation, and the push rod 2111 moves along the center line 105.
  • the trigger switch 211 is closed, thereby starting the motor 22.
  • the trigger switch 211 may be a travel switch.
  • the sliding stroke of the push rod 2111 is related to the rotation speed of the motor 22, that is, the greater the distance the push rod 2111 moves backward along the center line 105, the faster the speed of the motor 22.
  • the sliding distance of the push rod 2111 is related to the rotation angle of the trigger 212, that is, the greater the rotation angle of the trigger 212, the greater the distance the push rod 2111 moves backward in the direction of the center line 105, in order to facilitate the trigger 212
  • the contact portion 2132 contacting the protrusion 2121 of the trigger 212 forms a contact surface 2133.
  • the contact surface 2133 is set as an arc surface.
  • the ratio of the rotation angle of the trigger 212 to the sliding distance of the push rod 2111 Is a constant K.
  • the ratio of the rotation angle of the trigger 212 to the sliding distance of the push rod 2111 is greater than or equal to 0.9K and less than or equal to 1.1K.
  • the switch assembly 21 also has a lock switch 214, and the operation mode is that the user first operates the lock switch 214 to release the lock, and then the trigger 212 can be operated. In this way, the chain saw 100 can be prevented from being started by mistake, thereby ensuring the safety of the user.
  • the main handle 243 is detachably connected to the main body 242, thereby facilitating maintenance and replacement of the electronic components and mechanical parts inside the main handle 243.
  • the disassembly and assembly here means that the main handle 243 is separated from the main body 242 without damaging the original structure of the main handle 243 or the main body 242.
  • the main handle 243 and the main body 242 form a snap connection, a threaded connection, and a screw. Connection etc.
  • the main handle 243 includes: a left handle portion 2436 and a right handle portion 2437.
  • the left handle portion 2436 and the right handle portion 2437 are detachably connected, that is, the left handle portion 2436 and the right handle portion 2437 can also be connected by a snap connection or a thread. Connection methods such as connection and screw connection. In this way, the user can detach the left handle portion 2436 and the right handle portion 2437 from the main body portion 242 respectively.
  • the main body 242 is formed with a left groove 2427 and a right groove 2428.
  • the left groove 2427 is for a part of the left handle 2436 to be embedded from the left
  • the right groove 2428 is for a part of the right handle 2437 to be inserted from the left. Embed on the right.
  • the insertion of the left handle portion 2436 into the left groove 2427 can realize the preliminary positioning of the left handle portion 2436 to the main body portion 242, and the insertion of the right handle portion 2437 into the right groove 2428 can realize the preliminary positioning of the right handle portion 2437 to the main body portion 242. Then, the left handle portion 2436 and the right handle portion 2437 are tightened by screws.
  • the main body portion 242 includes a left housing portion 2421 and a right housing portion 2422, wherein the left housing portion 2421 is formed with a left groove 2427, and the right housing portion 2422 is formed with a right groove 2428.
  • the left handle portion 2436 is inserted into the left groove 2427 on the left housing portion 2421 from the left side, and the right handle portion 2437 is inserted into the right groove 2428 on the right housing portion 2422 from the right side.
  • the main gripping portion 2433 basically extends along the center line 105.
  • the center line 105 intersects the front and rear directions to form an included angle ⁇ .
  • the included angle ⁇ is greater than or equal to 5 degrees and less than or equal to 13 degrees. Under conditions, such as high altitude or cutting comfort when operating on trees.
  • the center line 105 intersects the front-rear direction to form an included angle ⁇ , which is greater than or equal to 8 degrees and less than or equal to 13 degrees.
  • the main holding portion 2433 is at least partially symmetrical with respect to a third plane P3, which is the midpoint surface of the main holding portion 2433, for example, the left handle portion 2436 and the right handle portion 2437 are respectively symmetrically arranged on both sides of the third plane P3.
  • the guide plate 233 extends in the first plane P1, wherein the first plane P1 and the third plane P3 are substantially parallel, and the guide plate 233 is arranged on the right side of the third plane P3.
  • the distance L3 between the first plane P1 and the third plane P3 is less than or equal to 55 mm. In this way, the balance of the host 20 in the left and right directions can be improved, which is convenient for the user to cut and improves the control performance.
  • the chain saw 100 further includes an auxiliary handle 70
  • the auxiliary handle 70 includes an auxiliary grip 71.
  • the auxiliary handle 70 is arranged on the side of the main handle 243 away from the guide plate 233, that is, the auxiliary handle 70 is arranged on the left side of the third plane P3.
  • the auxiliary handle 70 is connected to the casing 24.
  • the auxiliary handle 70 further includes a first connecting portion 72 and a second connecting portion 73. The first connecting portion 72 and the main handle 243 form a removable connection, and the second connecting portion 73 is connected to the main body.
  • the first connection portion 72 and the left handle portion 2436 may be a snap connection, a threaded connection, a screw connection, etc., and the specific connection mode is not limited.
  • the second connecting portion 73 and the left housing portion 2421 may be a snap connection, a threaded connection, a screw connection, or the like.
  • the auxiliary handle 70 may be configured as a connection that is removed together with the main handle 243, for example, the first connecting portion 72 is screwed to the left handle portion 2436.
  • the chain saw 100 further includes: an alarm device 80 and an oil pipe 28.
  • the alarm device 80 is used to remind the user that the remaining amount of oil in the oil can 27 is small, so that the user can fill the oil can 27 in time, thereby avoiding damage to the chain saw 100 due to lack of oil.
  • the oil pipe 28 is connected to the oil can 27 for sending the oil in the oil can 27 to the guide plate 233.
  • the alarm device 80 includes: an alarm element and a detection assembly 81 for reminding the oil pot 27 to be short of oil, and the alarm element is an alarm lamp 82.
  • the user holds the main handle 243 of the host 20 with the right hand, and the left hand can be placed on the auxiliary handle 70, that is, the user is at least partially located on the left side of the third plane P3.
  • the warning light 82 is set at The left side of the main handle 243.
  • the main handle 243 is also provided with a power indicator light 83, and the power indicator light 83 is used to display the remaining power of the battery pack 11.
  • the power indicator light 83 and the warning light 82 are arranged on the left side of the main handle 243.
  • the warning light 82 and the power indicator light 83 are both arranged on the left side of the third plane P3.
  • the alarm lamp 82 and the battery indicator lamp 83 are arranged adjacent to the circuit board 26.
  • the alarm lamp 82 and the battery indicator lamp 83 are both provided with main handles.
  • the rear end 2432 of the 243, that is, in the front-rear direction, the motor 22 is arranged between the oil pot 27 and the power indicator light 83, and the motor 22 is also arranged between the oil pot 27 and the warning light 82.
  • the battery pack 11 is separated from the host 20, and the host 20 is provided with a power indicator light 83, so as to facilitate the user to observe the remaining power of the battery pack 11 during operation.
  • the detection component 81 is used to detect whether there is oil in the oil pipe 28.
  • the detection component 81 is disposed adjacent to the oil can 27.
  • the detection component 81 includes a detection element, a connecting pipe 812 and a mounting housing 813, and the detection element is a light sensor 811.
  • the light sensor 811 is used to detect whether there is oil passing through the connecting pipe 812, and the connecting pipe 812 is used to connect the oil pipe 28.
  • the light sensor 811 is arranged in the mounting housing 813, the connecting pipe 812 is at least partially arranged in the mounting housing 813, and the light sensor 811 is arranged adjacent to the connecting pipe 812.
  • the oil pipe 28 has a first section 281 and a second section 282, and the connecting pipe 812 connects the first section 281 and the second section 282.
  • the detection component 81 is provided between the first section 281 and the second section 282.
  • the connecting pipe 812 is provided between the first section 281 and the second section 282 to connect both of them.
  • the oil pipe 28 is divided into two sections, namely the first section 281 and the second section 282, and the connecting pipe 812 is provided between the first section 281 and the second section 282 to connect the two, so that the first section 281 and the second section 282 are connected.
  • the section 281, the connecting pipe 812 and the second section 282 constitute an oil circuit.
  • the detection component 81 when the detection component 81 fails, the user can disassemble the detection component 81 from the oil pipe 28 for replacement or maintenance, that is, the detection component 81 is configured as a convenient detachable module.
  • the light sensor 811 detects whether there is oil passing through the connecting pipe 812, and converts light energy into an electrical signal and sends it to the circuit board 26.
  • the circuit board 26 receives the electrical signal, and the circuit board 26 controls the alarm lamp 82 to issue an alarm signal according to the electrical signal.
  • the motor 22 is arranged between the oil can 27 and the circuit board 26.
  • the oil can 27 is arranged on the front side of the motor 22 and the circuit board 26 is arranged on the rear side of the motor 22.
  • the detection component 81 is arranged on the rear side of the oil can 27, and the detection component 81 is also arranged on the lower side of the motor 22, so that the space under the motor 22 can be fully utilized, thereby improving the compactness of the mainframe 20 and reducing the volume of the mainframe 20.
  • the light sensor 811 includes a light-emitting element and a receiving element.
  • the light-emitting element is used for emitting light
  • the receiving element is used for receiving the light emitted by the light-emitting element.
  • the light emitting element and the receiving element are respectively arranged on both sides of the connecting pipe 812.
  • the oiler 27 is in a state of lack of oil
  • the warning light 82 displays a lack of oil signal.
  • the light is refracted and concentrated by the oil path, and the receiving element receives enough light.
  • the oil pot 27 is in an oily state, and the warning light 82 displays an oil signal.
  • the warning light 82 is an LED light.
  • the LED light flashes, and when the oil can 27 is in a state of having oil, the LED light is off.
  • the alarm light when the oil can is in a state of lack of oil, the alarm light emits red light, and when the oil can is in a state of oil, the alarm light emits green light.
  • the oil pipe 28 is configured as a non-transparent piece
  • the connecting pipe 812 is configured as a transparent piece.
  • the oil pipe 28 is arranged outside the installation housing 813, the oil pipe 28 does not extend into the installation housing 813, the connecting pipe 812 is partially located in the installation housing 813, and the connecting pipe 812 also extends out of the installation housing 813 to connect with the oil pipe 28 ,
  • the connecting pipe 812 extends into the oil pipe 28, and the oil pipe 28 is partially sleeved outside the connecting pipe 812.
  • the detection assembly 81 can pass through the connecting pipe 812, the light from outside the mounting housing 813 can also be prevented from entering the mounting housing 813 through the oil pipe 28 and the connecting pipe 812, thereby affecting the detection assembly 81 Accuracy of detection.
  • the installation housing 813 includes a first housing 8131 and a second housing 8132.
  • the first housing 8131 and the second housing 8132 are clamped to form an installation space.
  • the connecting pipe 812 is at least partially fixedly arranged in the installation room, and the light sensor 811 is fixedly arranged in the detection space.
  • the connecting pipe 812 and the light sensor 811 are fixedly connected to the first housing 8131. After the connecting pipe 812 and the light sensor 811 are arranged in the first housing 8131, insulating glue is injected into the first housing 8131, so as to effectively prevent dust and water vapor from entering the light sensor 811 and the connecting pipe 812, and improve the detection assembly 81 The performance, prolong the service life of the detection component 81.
  • the connecting component 3 further includes: a safety component 50.
  • the safety component 50 includes a safety element, and the safety element is a safety valve 51.
  • the safety element is opened, so that the connection assembly 3 disconnects the mechanical connection between the host 2 and the battery pack 11, thereby allowing the host 2 to be separated from the battery pack 22.
  • the force may be a force continuously applied to the safety element, or it may be a force applied to the safety element instantaneously.
  • the battery pack 11 is separated from the host 20, and the battery pack 11 is installed on the user's body.
  • the safety element is opened, the connection relationship between the whole constituted by the battery pack 11 and the user and the host 20 is opened, thereby realizing the separation of the host 20 from the battery pack 11 and the separation of the host 20 from the user. In this way, it is possible to avoid the damage to the user caused by the external force being transmitted to the user when the host 20 receives a large external force.
  • the battery pack 11 is connected to the mounting base 40, and the mounting base 40 can be mounted on the user's body.
  • the chain saw 100 may further include a waist belt 200, which is mounted on the waist of the user.
  • the waist belt 200 may be considered as a part of the chain saw 100, or may be a part outside the chain saw 100, for example, a waist belt carried by the user himself.
  • the mounting base 40 can be detachably mounted on the waist belt 200.
  • the battery pack 11 is detachably installed on the mounting base 40. At this time, when the safety element is opened, the safety element disconnects the host 20 and the mounting base 40, thereby realizing the separation of the host 20 from the battery pack 11, the separation of the host 20 from the belt 200, and the separation of the host 20 from the user.
  • the safety element is connected with the host 20, so that when the host 20 receives a large external force, the external force is transmitted to the safety element so that the safety element receives a force greater than or equal to the preset safety value.
  • the safety element opens and the host 20 acts on the external force.
  • the power output interface 33 of the power cord 30 is disconnected from the host 20, so that the connection between the host 20 and the power cord 30 is disconnected, and the connection between the host 20 and the connecting assembly 3 is disconnected.
  • the power cord can also be fixedly connected to the host, and the power cord forms a detachable connection with the mounting base or the battery pack.
  • the safety element can be connected to the mounting base or the battery pack.
  • the safety assembly 50 further includes a safety rope 52, and the safety valve 51 is fixedly installed to the safety rope 52. Since the host 20 and the battery pack 11 are separately installed, and the battery pack 11 is carried by the user, the safety rope 52 is used to connect the host 20 and the user. One end of the safety rope 52 is fixedly connected with the waist belt 200, the mounting base 40 or the battery pack 11, and the other end is detachably connected with the host 20. In this way, when the safety valve 51 is opened, the safety valve 51 and the safety rope 52 will be connected to the user, and the host 20 will be separated from the user, the belt 200, the mounting seat 40, the power cord 30, the safety rope 52, and the safety valve 51. Overall.
  • the end of the safety rope 52 away from the host 20 is fixedly connected to the mounting base 40.
  • the safety rope 52 is further provided with a first connecting piece 521 and a second connecting piece 522.
  • the first connecting piece 521 can be detachably connected to the waist belt 200, and the second connecting piece 522 can also be detachably connected to the waist belt 200.
  • the first connecting member 521 is connected to the waist belt 200, the distance between the host 20 and the waist belt 200 is relatively large at this time, which is suitable for the user to cut vegetation with a long distance.
  • the distance between the host 20 and the waist belt 200 is small, which is suitable for the user to cut vegetation with a shorter distance, and at this time, it can also avoid the safety rope 52 being too long and easy to be damaged. Risk of scraping by foreign objects.
  • the safety rope 52 is connected to the host 20 through the safety valve 51, and the safety rope 52 is connected to the waist belt through the first connecting piece 521 or the second connecting piece 522.
  • the safety valve 51 opens The connection between the safety rope 52 and the host 20 is disconnected. At this time, the connection between the safety rope 52 and the waist belt 200 is not disconnected.
  • the number of the safety valve 51 can be one or more, and the number of the intermediate connecting piece can be one or more. If multiple safety valves 51 are provided for connecting the safety rope 52 and the host 20, then compared to the case of one safety valve 51, the preset safety value set at this time should be smaller. Multiple safety valves 51 can cause greater momentum loss of the host 20 during the fall, so that the host 20 may not be damaged when it falls, thereby reducing user losses.
  • the preset safety value is greater than or equal to 15 pounds and less than or equal to 400 pounds. In this way, on the one hand, the preset safety value cannot be set too small, which can prevent the host 20 from falling when a small external force is applied to the host 20, thereby causing loss to the user. On the other hand, the preset safety value cannot be set too large, so as to avoid the damage to the user caused by the host 20 being separated from the user by a great external force. In this embodiment, the preset safety value is greater than or equal to 25 pounds and less than or equal to 200 pounds. Exemplarily, when the safety rope 52 or the host 20 is momentarily acted on by an external object, the host 20 will fall quickly.
  • the safety valve 51 receives a dynamic force, and the safety valve 51 may be affected by a dynamic force. Will open.
  • the preset safety value of the safety valve 51 refers to the static force that opens when the safety valve 51 receives a static force. the size of. For example, when the safety valve 51 is opened by a pulling force when it is stationary, the magnitude of the pulling force can be understood as a preset safety value.
  • the safety valve 51 After the preset safety value is set, when the force received by the safety valve 51 is greater than or equal to the preset safety value, the safety valve 51 opens. Or, after the preset safety value is set, when the force received by the safety valve 51 is greater than the preset safety value, the safety valve 51 is opened.
  • the safety rope may not be provided with an intermediate connector and a safety valve, and the safety rope itself is manufactured to break when subjected to a preset force, that is, the material characteristics of the safety rope itself are used to make the safety rope
  • the safety rope is disconnected, so that the connection between the user and the host 20 is disconnected.
  • the material of the safety rope can be uniform. At this time, when the force on any safety rope is greater than or equal to the preset safety value, it will be disconnected. Alternatively, the material of the safety rope can also be non-uniform. At this time, as long as it is satisfied that the force on the part of the safety rope is greater than or equal to the preset safety value, the disconnection causes the connection between the host and the user to be disconnected.
  • the power cord 30 connects the host 20 and the battery pack 11 on the user so that the battery pack 11 and the host 20 form an electrical connection.
  • the power cord 30 and the host 20 also form a detachable connection, so when the host 20 receives a When the force is less than the preset safety value, the power cord 30 can also be disconnected from the host 20.
  • the safety rope 52 is connected to the host 20 and the mounting base 40 connected to the user. When the force received by the safety rope 52 is greater than or equal to the preset safety value, the connection between the power cord 30 and the host 20 is disconnected, and the connection between the safety rope 52 and the host 20 is also disconnected.
  • the safety cord 52 and the power cord 30 may be disconnected or connected.
  • the maximum extension length of the safety cord 52 should be less than the maximum extension length of the power cord 30 to ensure the safety of user operations.
  • the safety rope 52 and the power cord 30 are not connected, there are two wires between the host 20 and the user, which are prone to interference or entanglement leading to power failure and unstable operation.
  • the safety rope 52 and the power cord 30 are connected together, making the entire assembly structure more streamlined.
  • the safety rope 52 and the power cord 30 may only be restricted by a restricting member without contact, or they may be sleeved or connected together. In this embodiment, as shown in FIG.
  • the safety rope 52 is wound or wrapped around the surface of the power cord 30, the safety rope 52 extends along the extension direction of the power cord 30, and the length of the safety rope 52 is less than the length of the power cord 30.
  • the materials of the safety rope 52 and the power cord 30 are not limited, and the safety rope 52 is made of non-elastic materials.
  • the power cord 30 includes a core 30a and an insulating sleeve 30b.
  • the insulating sleeve 30b surrounds the core 30a, and the insulating sleeve 30b protects the core 30a.
  • the safety rope 52 has a length direction, the safety rope 52 is formed with a through hole passing through itself along the length direction, and at least one end of the insulating sleeve 30 b passes through the safety rope 52.
  • the safety rope 52 is made of fiber material
  • the insulating sleeve 30b is made of rubber material.
  • the length of the power cord 30 is greater than or equal to 0.5 meters and less than or equal to 2.5 meters.
  • the length of the power cord 30 is greater than or equal to 1 meter and less than or equal to 2 meters. In this way, the length of the power cord 30 can not only meet the user's need to cut vegetation far away from him, but also avoid the problem of being easily entangled with plants or arms caused by the excessively long power cord 30.
  • the length of the safety rope 52 is greater than or equal to 0.5 meters and less than or equal to 2.5 meters.
  • the length of the power cord 30 is greater than or equal to 1 meter and less than or equal to 2 meters. In this embodiment, the length of the safety rope 52 is still less than the length of the power cord 30.
  • the ratio of the length of the power cord 30 to the length L2 of the part of the guide plate 233 extending out of the casing 24 is greater than or equal to 2 and less than or equal to 10.
  • the ratio of the length of the power cord 30 to the length L2 of the portion of the guide plate 233 extending out of the casing 24 is greater than or equal to 3 and less than or equal to 6. In this way, the weight of the chain saw 100 can be reduced on the one hand, and the length of the power cord 30 and the length L2 of the part of the guide plate 233 extending out of the casing 24 can meet the longest cutting distance required by the user.
  • the casing 24 is formed with a connecting portion 24c, and the safety valve 51 is detachably connected to the connecting portion 24c.
  • the safety valve 51 is separated from the connecting portion 24 c, so that the safety valve 51 is separated from the connection of the host 20.
  • the connecting portion 24c is arranged on the rear surface 246 of the host 20, and the connecting portion 24c is a hook.
  • the hanging buckle is rotatably connected to the rear surface 246 of the host 20. In this way, as shown in FIG. 1, the user can open the hanging buckle as needed, or put the hanging buckle in a state of being attached to the casing 24 as shown in FIG. 2.
  • the mounting base 40 includes a base 40a and a connecting mechanism 40b.
  • the base 40a is used to install the battery pack 11, and the connecting mechanism 40b is used to connect the mounting base 40 to the user's waist belt 200.
  • the connecting mechanism 40 b includes a first connecting member that can be connected to the user's waist belt 200 in a first connecting manner, and the first connecting member may be a hook 41.
  • the connecting mechanism 40b further includes a second connecting member connected to the user's waist belt 200 in a second connecting manner, and the second connecting member is the connecting belt 42. That is, the mounting seat 40 is inserted into the user's waist belt 200 through the hook 41 to realize the preliminary positioning of the mounting seat 40.
  • the hook 41 is a metal piece
  • the connecting belt 42 is a flexible piece
  • the connecting belt 42 is made of fiber material.
  • the hook 41 is used to hang the mounting seat 40 on the user's waist belt 200
  • the connecting strap 42 is used to tie the mounting seat 40 to the user's waist belt.
  • the hook 41 is connected to the mounting base 40 by screws, and the connecting belt 42 is detachably mounted to the mounting base 40.
  • the mounting seat 40 also includes: an adjustable piece for adjusting the tightness of the connecting belt 42.
  • the adjusting piece is a toggle 43 that can rotate around the axis 105.
  • the toggle 43 and the base 40a are formed between the toggle 43 and the base 40a for the connecting belt 42 to pass through.
  • the gap is formed.
  • the connecting strap 42 includes a first free end 421 and a second free end 422.
  • An adjusting buckle 40c is formed or connected to the base 40a.
  • the connecting belt 42 When it is necessary to install the connecting belt 42 to the user's waist belt 200, first install the first free end 421 of the connecting belt 42 to the adjusting buckle 40c, then pass the connecting belt 42 through the waist belt 200, and then open the toggle 43, and then The second free end 422 of the connecting belt 42 passes through the gap between the button 43 and the base 40a, the second free end 422 is tightened, and the button 43 is closed, so that the mounting seat 40 is stably connected to the waist belt 200.
  • the number of connecting straps 42 is two, and the hook 41 is arranged between the two connecting straps 42. In this way, the mounting seat 40 can be installed more stably, preventing the mounting seat 40 from shaking due to force, which may cause the mounting seat 40 to detach from the waist belt 200.
  • the mounting base 40 further includes a locking assembly 44 and an ejection assembly 45.
  • the locking assembly 44 is used to lock and release the battery pack 11, and the ejection assembly 45 is used to eject when the locking assembly 44 releases the battery pack 11.
  • the battery pack 11 can thereby protect the pole piece 40d inside the mounting base 40, prevent the user from contacting the pole piece 40d, and also facilitate the user to replace the battery pack 11.
  • the ejection assembly 45 is movably connected to the base 40a.
  • the ejection assembly 45 includes an ejector 451 and an elastic member 452.
  • the locking assembly 44 is movably connected to the base 40a.
  • the locking assembly 44 includes a toggle button 441 and a lock catch 442.
  • one end of the elastic member 452 is connected to the ejection member 451, and the other end of the elastic member 452 is connected to the base 40a.
  • the elastic member 452 pushes the ejector 451 to the first position.
  • the pole piece 40d is located inside the ejector 451, so as to prevent dust and water vapor from sticking to the pole piece.
  • the ejector 451 is pressed by the battery pack 11 to move away from the pole piece 40d, and the pole piece 40d is exposed, thereby realizing the electrical connection between the mounting base 40 and the battery pack 11.
  • the lock catch 442 locks the battery pack 11.
  • the toggle button 441 drives the lock 442 to unlock, and the ejector 451 is acted on by the elastic member 452.
  • the battery pack 11 is ejected.
  • the ejector 451 can completely cover the pole. ⁇ 40d.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Biophysics (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sawing (AREA)

Abstract

一种链锯,包括:主机;电池包,用于给所述主机提供能量,所述电池包和所述主机分离设置;连接组件,用于连接所述主机和所述电池包以使所述电池包和所述主机构成电连接;所述主机包括:链条,用于实现切割功能;导板,用于支撑所述链条;电机,用于驱动所述链条运动;机壳,用于容纳至少部分所述电机;所述连接组件与所述主机或所述电池包构成可拆卸连接。

Description

链锯
本申请要求申请日为2019年12月31日、申请号为201911411309.9的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种链锯,例如涉及一种链锯。
背景技术
链锯作为一种园林类电动工具,广泛应用于家庭、园林等领域。对于相关技术中的链锯而言,提供能量源的能源装置通常直接安装至链锯的主机上,这样使得主机的重量较重,用户操作起来不方便。
发明内容
本申请提供了一种链锯,可以方便用户操作。
本申请实施例提供一种链锯,包括:主机;电池包,用于给主机提供能量,电池包和主机分离设置;连接组件,用于连接主机和电池包以使电池包和主机构成电连接;主机包括:链条,用于实现切割功能;导板,用于支撑链条;电机,用于驱动链条运动;机壳,用于容纳至少部分电机;其中,连接组件与主机或电池包构成可拆卸连接;导板向前伸出至机壳外,主机的重量与导板伸出至机壳外的部分的长度的比值大于等于7.5kg/m且小于等于14.5kg/m。
可选地,连接组件包括:保险元件,在保险元件所受作用力大于等于预设安全值时,保险元件打开以使连接组件断开电池包和主机之间的连接。
可选地,连接组件还包括:安全绳,保险元件安装至安全绳;保险元件用于与主机连接。
可选地,连接组件还包括:安装座,用于安装电池包;电源线,包括用于与电池包或者安装座连接的第一端和与主机连接的第二端;其中,电源线的第二端与主机构成可拆卸连接。
可选地,机壳包括:电源插入接口,内部设置有接入端子;其中,电源线的第二端设置有与电源插入接口构成可拆卸连接的电源输出接口;保险元件为安全阀,在安全阀所受作用力大于等于预设安全值时,安全阀打开使得保险元 件与主机断开,且电源线与电源插入接口脱离。
可选地,预设安全值大于等于15磅且小于等于400磅。
可选地,预设安全值大于等于25磅且小于等于200磅。
可选地,安装座包括:底座,用于结合电池包;连接件,用于将安装座安装至用户的腰带;其中,连接件为柔性件。
可选地,安装座包括:底座,用于结合电池包;第一连接件,用于以第一连接方式将安装座安装至用户的腰带;第二连接件,用于以第二连接方式将安装座安装至用户的腰带;第一连接件为非柔性件,第二连接件为柔性件。
可选地,连接组件包括:安装座,用于安装电池包;电源线,包括用于与电池包或者安装座连接的第一端和与主机连接的第二端;安装座包括:底座,用于结合电池包;连接件,用于将安装座安装至用户的腰带;其中,连接件为柔性件。
可选地,连接组件还包括:安装座,用于安装电池包;电源线,包括用于与电池包或者安装座连接的第一端和与主机连接的第二端。
可选地,安全绳围绕至电源线的表面。
可选地,安全绳的长度基本固定。
可选地,安全绳为非弹性绳。
可选地,电源线的长度与导板伸出至机壳外的部分的长度的比值大于等于2且小于等于10。
可选地,电源线包括:线芯;绝缘套,围绕线芯;安全绳具有一个长度方向,安全绳形成有沿长度方向贯穿自身的通孔,绝缘套的至少一端穿过安全绳。
可选地,机壳包括主把手,主把手设置于机壳的上侧,电源插入接口设置于主把手的左侧,导板设置于主把手的右侧。
可选地,机壳还包括:前端面,形成有供导板伸出的前端口;后端面,与前端面相对;其中,在沿前后方向上,电源插入接口设置于前端面和后端面之间。
可选地,电源插入接口形成有向后敞开的连接口,电源线的第二端从连接口处插入电源插入接口。
可选地,主机的重量与导板伸出至机壳外的部分的长度的比值大于等于8.5kg/m且小于等于13kg/m。
可选地,电机的输出功率与主机的重量的比值大于等于250W/kg且小于等于 800W/kg。
本申请提供的链锯,电池包与主机分离设置,从而使得用户能够更轻松、更方便的操作链锯。
附图说明
图1是本实施例中链锯的立体图;
图2是图1中的链锯另一方向的立体图;
图3是图1中的链锯在能源装置与主机分离时的立体图;
图4是图1中的链锯中的主机的立体图;
图5是图4中的主机的平面图;
图6是图4中的主机的俯视图;
图7是图4中的主机在左壳体部被分离时的立体图;
图8是图4中的主机在刹车盖板被打开时的立体图;
图9是图4中的主机在导板被拆卸时的平面图;
图10是图9所示结构的剖视图;
图11是图9所示结构在左壳体部被拆卸时的平面图;
图12是图9所示结构在盖板被打开时的立体图;
图13是图9所示结构在右壳体部被拆卸时的立体图;
图14是图13中的刹车带的平面图;
图15是图4中的主机在主把手部被分离时的立体图;
图16是图15中的部分结构的放大图;
图17是图9所示结构在主把手和副把手被分离时的立体图;
图18是图17中的开关组件的平面图;
图19是图4中的主机在左壳体部被拆卸时的立体图;
图20是图19中的油壶和部分报警装置的立体图;
图21是图20所示结构的平面图;
图22是图1中的电源线和安全绳的截面图;
图23是图1中的安装座的立体图;
图24是图1中的安装座的另一立体图;
图25是图23中的安装座在第二连接件被拆卸时的立体图;
图26是图23中的安装件在第二连接件被分离时的立体图;
图27是图25所示结构在底座被打开时的立体图,其中,顶出件被弹性件顶出;
图28是图25所示结构在底座被打开时的立体图,其中,极片露出。
具体实施方式
如图1所示的链锯100为一种电动工具,该电动工具还包括能实现其功能的功能元件。对于链锯100而言,该功能元件为链条231。链锯100通过驱动链条231运动实现切割木材的功能。
为了清楚的说明本实施例的技术方案,定义了如图4所示的上、下、前、后、左和右。
请参考图1至图3所示,链锯100包括能源装置10、主机20和连接组件3。能源装置10用于为主机20提供能源,在本实施例中,能源装置10为电池包11。主机20包括上述的链条231,主机20带动链条231运动以切割木材。主机20与电池包11分离设置,也即是说,电池包11不是直接安装在主机20的外表面,这样,可以减轻主机20的重量,从而方便用户操作主机20,而且还能够降低用户长期操作主机20的疲劳感,进而提高工作效率。连接组件3用于连接能源装置10和主机20,从而实现将能源装置10输出的能量传递至主机20。在本实施例中,能源装置10包括电池包11,连接组件3连接主机20和电池包11以使电池包11和主机20构成电连接。在本实施例中,连接组件3包括电源线30,主机20通过电源线30与电池包11构成电连接,即电池包11通过电源线30将能源提供给主机20。在本实施例中,连接组件3还包括安装座40,安装座40用于安装电池包11,电源线30与安装座40电连接,从而电池包11通过安装座40与电源线30构成电连接,然后再将电能输出至主机20。
电源线30包括用于电连接至电池包11的第一端31和用于电连接至主机20的第二端32。在本实施例中,电源线30的第一端31通过与安装电池包11的安装座40连接来实现电源线30与电池包11的电连接。电源线30的第一端31与安装座40构成固定连接。在其它实施例中,电源线的第一端也可以与安装座构成可拆卸连接。电源线30的第二端32与主机20构成可拆卸连接,电源线30的第一端31连接有电源输出接口33,主机20上对应的形成有电源插入接口244,电源输出接口33能够可拆卸的插入至电源插入接口244以实现电池包11与主机20的电连接。在本实施例中,电源线30的第一端31与主机20构成可拆卸连接,从而当主机20受 到外力时,主机20能够脱离电源线30而脱离用户的控制以避免伤害到用户。
在本实施例中,电机22的输出功率与主机20的重量的比值大于等于250W/kg且小于等于800W/kg。在其它一些实施例中,电机22的输出功率与主机20的重量的比值大于等于350W/kg且小于等于600W/kg。这样,在减小整机的重量的同时主机20能输出较大的功率,从而保证切割性能。在本实施例中,主机20的重量大于等于3kg且小于等于4.5kg。电机22的输出功率大于等于1500W。
如图1至图7所示,主机20还包括:开关组件21、导板233、电机22和机壳24。开关组件21用于供用户操作以启动链锯100。导板233用于支撑链条231。电机22用于驱动链条231运动。机壳24形成有容纳腔241,电机22至少部分设置于容纳腔241内,导板233部分设置于机壳24内,导板233能够向前伸出至机壳24外。开关组件21至少部分设置在机壳24内,开关组件21用于启动电机22。请参考图2至图6,机壳24包括:主体部242、主把手243和以上所述的电源插入接口244。主把手243用于供用户握持,主体部242形成有容纳空间以用于容纳电机22,电源插入接口244用于与电源线30配合实现电连接。为了方便用户操作,同时也为了保证主机20的平衡性,主把手243设置于机壳24的上侧,电源插入接口244设置于主把手243的左侧,导板233设置于主把手243的右侧,电机22位于主把手243的下方。在本实施例中,主把手243设置于主体部242的上侧。这样,主机20的重心G位于主把手243的下方,当用户握持主把手243操作主机20时,保证主机20运行时的平稳性。
主机20的重量与导板233伸出至机壳24外的部分的长度L2的比值大于等于6kg/m且小于等于20kg/m。这样,即使是在安装不同长度或尺寸的导板233时,主机20的重心G也不会发生较大的位置变动,从而能够提高整机的平衡性能。而且还使得主机20在导板233伸出至机壳24外的部分的长度L2满足用户的需求的情况下,主机20的重量的变化能够适应用户的需求且能被用户所接受,从而在满足工作需求的情况下提高工作效率。在其它的一些实施例中,主机20的重量与导板233伸出至机壳24外的部分的长度L2的比值大于等于8.5kg/m且小于等于13kg/m。
电源插入接口244形成有向后敞开的连接口2441,电源线30的电源输出接口33从连接口2441处插入电源插入接口244,示例性的,连接口2441内部设置有接入端子,电源线30的电源输出接口33内设置有输出端子,电池包11能够通过电源线30的输出端子与连接口2441内部的接入端子将能源提供给电机22。
本实施例中,机壳24包括有前端面245和后端面246。电机22设置前端面245和后端面246之间,前端面245位于机壳24的前侧,前端面245形成有可供导板233伸出的前端口,后端面246设置于前端面245的后侧,与前端面245相对设置。电源插入接口244设置在前端面245和后端面246之间,也即是说,电源插入接口244没有设置在前端面245上,也没有设置在后端面246上。这样,主机20在前后方向的尺寸较小,从而方便用户的操作,方便搬运、存储。而且,将电源插入接口244设置在前端面245和后端面246之间,还使得后端面246能够有效的保护电源插入接口244不会被损坏,还能避免异物,例如树枝,刮到与电源插入接口244连接的电源线30的第二端32而造成的电源线30与电源插入接口244的连接不稳定。
在前后方向上,电源插入接口244与重心G之间的距离L小于等于100毫米。在前后方向上,电源插入接口244与重心G之间的距离L小于等于80毫米。这样使得电源插入接口244靠近重心G设置,从而当电源线30连接至主机20时,电源线30对主机20的平衡性影响不大,从而方便用户操作,提高了工作效率。而且,在本实施例中,重心G还设置于电源插入接口244的前侧的预设距离范围内,这样,当电源插入接口244连接电源线30时,可以使得主机20略微翘起,这样,方便用户稳定的操作主机20。
导板233在第一平面P1内延展,后端面246至少部分在第二平面P2内延伸,第一平面P1与第二平面P2基本垂直,电源插入接口244到第二平面P2的距离L1大于等于80mm且小于等于100mm。
主把手243包括前端部2431、后端部2432和主握持部2433。在沿前后方向上,电机22设置在前端部2431和后端部2432之间,其中主把手243连接在主体部242上,前端部2431与主体部242固定连接或者一体成型,同样后端部2432与主体部242固定连接或者一体成型。电源插入接口244设置于前端部2431和后端部2432之间,这样电源插入接口244与主机20的重心G之间的距离较小。主握持部2433为用户主要握持区域,即主握持部2433设置于前端部2431和后端部2432之间,即电源插入接口244设置在主握持部2433的正下方,这样能够提高操作的平稳性。
请参考图5、图7以及图8,主机20还包括:风扇221、链轮232、散热基板25、电路板26和油壶27。风扇221设置在容纳腔241内,风扇221与电机22连接并能随电机22的运行而转动。链轮232与链条231连接,用于驱动链条231运动。散热基板25用于导向风扇221转动时产生的散热气流的流动。电路板26设置在机壳24内, 并设置在电机22的后侧。散热基板25还与电路板26接触,这样,电路板26在工作过程中所产生的热量能够直接传递至散热基板25,然后这些热量被散热气流带走。油壶27用于对导板233以及链条231进行润滑,油壶27至少部分设置在容纳腔241内。在沿前后方向上,电机22设置在散热基板25和油壶27之间,电机22也设置在电路板26和油壶27之间。这样,可以使得主机20的重心G能够靠近电机22以及油壶27设置,而电机22、油壶27相对其它零件而言重量比较大,从而使得主机20的平衡性得到提高,且容易布置电机22以外的其它零件的位置。在本实施例中,在前后方向上,重心G还设置在油壶27和电机22之间,这样,油壶27和电机22均距离重心G比较近,这样油壶27内所存储的油的多少对重心G位置的变化影响较小。
请参考图5至图8,电机22包括有电机轴222,电机轴222能够绕第一轴线101转动,并且电机轴222驱动链轮232从而带动链条231运动,风扇221安装至电机轴222,电机轴222带动风扇221转动。其中,电机轴222的第一轴线101垂直于第一平面P1,导板233向前伸出机壳24外,即电机22沿左右方向设置。为了电源插入接口244的位置靠近主机20的重心G,保证主机20运行的平稳性,电源插入接口244可以设置于电机22的沿第一轴线101方向上的一端。为了方便风扇221对电源插入接口244处散热,电源插入接口244靠近风扇221设置,可选的,电源插入接口244可以设置在风扇221的一端。
如图7、图9和图10所示,主机20还包括有支架247,支架247用于支撑电机22,支架247设置在主体部242内。支架247将容纳腔241间隔成左侧空间2411和右侧空间2412。电机22的电机轴222从左侧空间2411延伸至右侧空间2412,电机22的定子位于左侧空间2411,链轮232设置在右侧空间2412,油壶27、风扇221和电路板26设置在左侧空间2411,这样,主机20在左右方向上具有较好的平衡性。
机壳24上开设有供气流进入容纳腔241的主进风口2424和供气流流出的出风口2425。当风扇221转动时,在机壳24内产生从主进风口2424进入机壳24内然后从出风口2425流出的第一散热气流24a。机壳24内设置有第一气流通道24d,第一气流通道24d用于引导第一散热气流24a的流向,实现对电机22和电路板26进行散热。第一气流通道24d由支架247和机壳24的侧壁围绕形成。左侧空间2411的散热基板25导向第一散热气流24a向第一方向A流动,第一散热气流24a受支架247侧壁的约束,第一散热气流24a流经电机22的定子,最后从出风口2425排出, 实现对电机22和电路板26进行散热。其中风扇221是离心风扇。第一散热气流24a流动的路径位于左侧空间2411,不会经过右侧空间2412。链轮232设置在右侧空间2412中,链条231和导板233也部分地设置在右侧空间2412中,这样,右侧空间2412中可能会产生粉尘,例如木屑、灰尘等。而在本实施例中,第一散热气流24a的流通路径设置在左侧空间2411中。这样,一方面,第一散热气流24a在流动的过程中,不会吸入右侧空间2412中的粉尘。另一方面,第一散热气流24a在流动过程中还能在机壳24内形成了一个气流屏障,该气流屏障对于右侧空间2412内的粉尘还具有阻碍作用,从而能够延长链锯100的使用寿命。
主进风口2424设置在主把手243的左侧,导板233、链轮232和链条231设置在主把手243的右侧。在用户操作主机20切割树枝时,灰尘以及木屑也一般会形成于主把手243的左侧,而主进风口2424设置在主把手243的右侧,这样,能够减少灰尘和木屑从主进风口2424进入到机壳24内。
主进风口2424靠近电路板26和散热基板25设置。为了避免出风口2425排出的风影响用户操作,出风口2425向下敞开。示例性的,主体部242包括有左壳体部2421和右壳体部2422,主进风口2424和出风口2425均设置在左壳体部2421上。在本实施例中,电源插入接口244设置于出风口2425的上方,这样,能够有效阻止从出风口2425出来的灰尘进入到电源插入接口244内。
如图9至图12所示,右壳体部2422上具有一个开口2423,与主进风口2424相对设置,散热基板25包括多个翅片,相邻两个翅片之间形成有能够导向气流的导向通道。气流从主进风口2424进入机壳24内,会带入粉尘D,粉尘D会堆积在翅片之间或者落在机壳24底部,影响主机20运行。在本实施例中,主进风口2424设置于导向通道的一端,开口2423设置在导向通道的另一端。导向通道导向第一散热气流24a沿第一方向A流动,在第一散热气流24a沿第一方向A流动一段时间后会在第一气流通道24d的作用下发生转向以沿着第二方向流动,转向后的第一散热气流24a流向电机22,而夹杂在第一散热气流24a中的粉尘D在惯性作用下则会继续沿第一方向A移动,从而使得一部分的粉尘D与第一散热气流24a分离,从而减少流经电机22的粉尘D,进而延长电机22的使用寿命。开口2423设置在第一方向A上,这样,粉尘D将会在开口2423附近堆积。机壳24还包括有盖板2429,用于密封开口2423,盖板2429可拆卸连接至机壳24。在本实施例中,主进风口2424设置在左壳体部2421上。开口2423和盖板2429设置在右壳体部2422上。在本实施例中,盖板2429通过螺钉连接至机壳24,这样能够避免盖板2429意外的 脱离机壳24。
当主机20工作时,盖板2429封闭开口2423,从而避免第一散热气流24a从开口2423流出。这样,当主机20工作时,第一散热气流24a从主进风口2424进入机壳24内,在散热基板25的导向作用下,第一散热气流24a首先沿第一方向A流动,在第一散热气流24a流出散热基板25后,第一气流通道24d导向第一散热气流24a进行转向以流向电机22,而这时第一散热气流24a中夹杂的粉尘D则会在惯性作用下继续沿着第一方向A流动以在开口2423处堆积,第一散热气流24a在流经电机22后从出风口2425流出至机壳24外。在主机20工作一段时间后,在开口2423处会堆积较多的粉尘D,同时散热基板25上也会附着较多的粉尘D。这时,用户可以拆下盖板2429,机壳24形成的开口2423向右敞开,用户用风枪或其它方式清理散热基板25上的,开口2423处的粉尘D。
在本实施例中,开口2423和主进风口2424分别设置在散热基板25的两端。
在本实施例中,主进风口2424设置在机壳24的左侧,主进风口2424引导第一散热气流24a从左向右进入机壳24。出风口2425设置在机壳24的下侧,出风口2425引导第一散热气流24a从上往下流出机壳24。第一散热气流24a从主进风口2424进入机壳24时的流动方向与其从出风口2425流出时的流动方向相互垂直。
如图8至图13所示,链锯100还包括有刹车组件60和刹车盖板61。刹车组件60用于供用户在高空作业时对主机20进行刹车,从而保护用户的安全。刹车盖板61与主体部242构成可拆卸连接,刹车盖板61与主体部242之间围绕形成用于容纳刹车组件60的空间。刹车盖板61通过螺钉连接至主体部242。当刹车盖板61被拆卸下来时,刹车组件60露出,这样可以对刹车组件60进行维修,还可以清理刹车组件60上的灰尘。刹车盖板61与主体部242之间形成有向前敞开的开口,该开口用于供导板233伸出至机壳24外。
开口2423设置在刹车组件60的后侧,盖板2429设置在刹车盖板61的后侧,这样粉尘D不会回流至刹车组件60处。
机壳24内还设置有保险丝234,保险丝234设置在主把手243内。保险丝234用于保护电路,防止电路中出现大电流,损坏主机20中的元件。主机20在运行时,保险丝234会产生大量的热量,容易导致机壳24老化,影响主机20的使用。主把手243上形成有第一辅助进风口2434,第一辅助进风口2434开设在保险丝234附近。示例性的,当风扇221转动时,第二散热气流从第一辅助进风口2434进入主把手243内并流经保险丝234,而风扇221转动会产生负压,负压将第二散 热气流吸入左侧空间2411,第二散热气流沿着支架247的侧壁,进入电机22,最后从出风口2425排出。
机壳24还包括有电容235,电容235设置在主体部242内,主机20在运行时,电容235会产生大量的热量,这样容易导致机壳24快速老化。左壳体部2421上形成有第二辅助进风口2426,第二辅助进风口2426开设在电容235附近。示例性的,当风扇221转动时,第三散热气流从第二辅助进风口2426进入主体部242内,流经电容235,而风扇221转动会产生负压,负压将第三散热气流吸入电机22,最后从出风口2425排出。第一散热气流24a、第二散热气流和第三散热气流均可以对电机22进行散热,从而延长电机22的使用寿命。
在本实施例中,刹车组件60包括:刹车板63、信号组件、联动组件64和刹车带65,信号组件包括:霍尔元件621和磁性件622。刹车板63转动连接至机壳24,刹车板63用于供用户操作。信号组件用于实现对电机22进行电子刹车。霍尔元件621位于机壳24内部,磁性件622安装于刹车板63上,通过转动刹车板63,磁性件622周围的磁场发生改变,引发霍尔元件621产生信号,从而通过控制电路对电机22进行电子刹车。联动组件64分别连接刹车板63和刹车带65,联动组件64用于在刹车板63和刹车带65之间实现动力的传递。当刹车板63转动时,联动组件64带动刹车带65张紧以对链轮232进行机械刹车。在本实施例中,当用户转动刹车板63时,一方面,信号组件会对电机22进行电子刹车,另一方面,刹车带65会对链轮232进行机械刹车,这样能够提高主机20的安全性能。
刹车板63具有三个支腿,分别为第一刹车支腿631和、第二刹车支腿632和第三刹车支腿633。第一刹车支腿631与联动组件64连接。在刹车板63相对机壳24转动时,第一刹车支腿631带动联动组件64运动,联动组件64驱动刹车带65对链轮232进行机械刹车。第二刹车支腿632连接信号组件,磁性件622固定连接至第二刹车支腿632,霍尔元件621安装至机壳24。当刹车板63相对机壳24转动时,磁性件622相对霍尔元件621的位置发生变化,从而驱动霍尔元件621向控制电路发出电信号,从而使得控制电路对电机22进行电子刹车。在本实施例中,信号组件所进行的电子刹车早于刹车带65所进行的机械刹车,也即是说,在刹车带65对链轮232进行刹车前,控制电路已经在对电机22进行电子刹车。
第三刹车支腿633用于将刹车板63可转动的安装至机壳24。第一刹车支腿631和第二刹车支腿632设置在主把手243的右侧,第三刹车支腿633设置主把手243的左侧,霍尔元件621固定设置在主把手243内。作为另一种实施方式,霍尔 元件固定设置在主体部内。
如图14所示,刹车带65包括:第一段651、刹车段652和第二段653。第一段651通过联动组件64连接至刹车板63。刹车段652环绕链轮232,用于锁定链轮232的转动。第二段653与机壳24连接,从而将刹车带65安装至机壳24。刹车段652是一段圆弧,第一段651设置在圆弧的一端,第二段653设置在圆弧的另一端。第一段651自圆弧的一端先沿直线延伸,然后弯曲180度,从而形成一个弯曲的钩子,这样,方便联动组件64与第一段651连接。第二段653自刹车段652沿直线延伸,且第二段653不再发生弯曲,也即是说,第二段653完全是一个直线段。在本实施例中,第二段653自圆弧的另一端沿上下方向延伸以形成直线段,从而能够避免刹车带65多次弯曲影响结构强度,同时节省空间。刹车组件60还包括:限位件66,用于阻止第二段653自由移动,限位件66与机壳24固定连接,限位件66与第二段653通过销661连接。在一实施例中,限位件66安装至机壳24,限位件66形成有插入孔,第二段653通过插入孔伸入至限位件66内部,限位件66内部设置销661,销661穿过第二段653上形成的安装孔以将第二段653限定在限位件66内。机壳24为塑料件,如果通过机壳24直接安装刹车带65的第二段653,这样,容易造成机壳24磨损从而使得刹车带65的安装不稳定。在本实施例中,限位件66和销661均是金属件,这样可以减小对机壳24的磨损,而且还能够增强对刹车带65的安装的稳定性。
如图15至图18,开关组件21安装至主把手243。开关组件21包括:扳机开关211和扳机212,扳机开关211与电机22构成电连接,扳机212用于供用户操作。主把手243围绕形成有把手空间2435,扳机212转动连接至主把手243以供用户操作,扳机开关211设置在把手空间2435内。当用户操作扳机212,扳机212相对机壳24绕第一转动轴线103转动,从初始位置转动至启动位置以触发扳机开关211,以启动电机22。当用户释放扳机212后,扳机212从启动位置转动至停止位置,扳机开关211断开,电机22停机。本申请中的启动位置指的是扳机212在转动过程中,扳机开关211闭合,实现电机22启动的位置,即只要是扳机212在转动过程中能使扳机开关211闭合的位置都可以是启动位置。停止位置是指扳机212在转动过程中能使扳机开关211断开的位置都可以是停止位置。
开关组件21还包括转动件213,转动件213可转动的设置在把手空间2435内。转动件213能够被扳机212驱动,以触发扳机开关211闭合。示例性的,扳机212在绕第一转动轴线103时,扳机212带动转动件213绕第二转动轴线104转动以触 发扳机开关211,从而启动链锯100。本实施例中,转动件213包括接触部2132和驱动部2131,接触部2132与扳机212接触,扳机212包括与接触部2132配合的凸起部2121。驱动部2131用于与扳机开关211接触以触发扳机开关211。扳机开关211包括有能被触发的推杆2111,推杆2111基本沿中心线105方向延伸。当用户操作扳机212时,扳机212的凸起部2121推动转动件213绕第二转动轴线104转动,转动件213的驱动部2131在转动过程中触发推杆2111,推杆2111沿中心线105向后运动,使扳机开关211闭合,从而启动电机22。其中,扳机开关211可以是行程开关。
推杆2111滑动的行程与电机22的转速有关,即推杆2111在沿中心线105方向向后移动的距离越大,则电机22的速度越快。在本实施例中,推杆2111滑动的距离与扳机212转动的角度有关,即扳机212转动的角度越大,推杆2111在中心线105方向上向后移动的距离越大,为了便于扳机212控制电机22的转速,与扳机212的凸起部2121接触的接触部2132形成有一接触面2133,接触面2133设置为弧形面,这样,扳机212转动的角度与推杆2111滑动的距离的比值为一个常数K。或者,在其它实施例中,扳机212转动的角度与推杆2111滑动的距离的比值大于等于0.9K且小于等于1.1K。
开关组件21还有锁定开关214,操作方式为用户先操作锁定开关214解除锁定,然后才能操作扳机212。这样,能够防止链锯100被误启动,从而保证用户的安全。
主把手243可拆装连接至主体部242,从而方便对主把手243内部的电子元件以及机械零件进行维修、更换。这里的可拆装指的是在不破坏主把手243或主体部242原有结构的基础上使主把手243脱离主体部242,例如主把手243与主体部242构成卡扣连接、螺纹连接和螺钉连接等。主把手243包括:左把手部2436和右把手部2437,左把手部2436与右把手部2437为可拆装连接,即左把手部2436与右把手部2437之间也可采用卡扣连接、螺纹连接和螺钉连接等连接方式。这样,用户可以分别将左把手部2436与右把手部2437从主体部242上拆卸下来。
在本实施例中,主体部242上形成有左凹槽2427和右凹槽2428,左凹槽2427供左把手部2436的一部分从左侧嵌入,右凹槽2428供右把手部2437的一部分从右侧嵌入。左把手部2436嵌入左凹槽2427能够实现左把手部2436被初步定位至主体部242,右把手部2437嵌入右凹槽2428能够实现右把手部2437被初步定位至主体部242。然后,左把手部2436和右把手部2437通过螺钉收紧。可选的,主体 部242包括左壳体部2421和右壳体部2422,其中左壳体部2421上形成左凹槽2427,右壳体部2422上形成右凹槽2428。左把手部2436从左侧嵌入至左壳体部2421上的左凹槽2427,右把手部2437从右侧嵌入至右壳体部2422上的右凹槽2428。
如图5所示,主握持部2433基本沿中心线105延伸,中心线105与前后方向相交形成夹角α,夹角α大于等于5度且小于等于13度,从而实现用户在非一般工况下,如高空或者树上操作时的切割舒适性。在一些实施例中,中心线105与前后方向相交形成夹角α,夹角α大于等于8度且小于等于13度。
如图6所示,主握持部2433至少部分关于一个第三平面P3对称,该第三平面P3即为主握持部2433的中分面,示例性的,左把手部2436与右把手部2437分别对称的设置在第三平面P3的两侧。导板233在第一平面P1内延伸,其中第一平面P1与第三平面P3基本平行,导板233设置在第三平面P3的右侧。第一平面P1和第三平面P3之间的距离L3小于等于55mm。这样,可以使主机20在左右方向上的平衡性好,方便用户切割,提高操控性能。
如图3、图6、图15至图17所示,链锯100还包括:辅助把手70,辅助把手70包括辅助握持部71。用户在操作链锯100时,一只手握持主把手243,另一只手握持辅助把手70,从而能够更稳定的操作主机20。辅助把手70设置在主把手243的远离导板233的一侧,即辅助把手70设置于第三平面P3的左侧。辅助把手70连接至机壳24,辅助把手70还包括:第一连接部72和第二连接部73,第一连接部72与主把手243构成可拆装连接,第二连接部73与主体部242构成可拆装连接,即第一连接部72与左把手部2436可以是卡扣连接、螺纹连接和螺钉连接等,具体连接方式不限。第二连接部73与左壳体部2421可以是卡扣连接、螺纹连接和螺钉连接等。为了方便拆卸主把手243,辅助把手70可以设置成随主把手243一并被拆除的连接,例如第一连接部72与左把手部2436螺钉连接。
如图19至图21所示,链锯100还包括:报警装置80和油管28。报警装置80用于提醒用户油壶27内的剩余油量较少,这样,用户能够及时地向油壶27中加油,从而避免因为缺油而对链锯100造成的损坏。油管28与油壶27连接,用于将油壶27中的油送至导板233处。报警装置80包括:用于提醒油壶27缺油的报警元件和检测组件81,报警元件为报警灯82。用户右手握持主机20的主把手243,左手可放置于辅助把手70上,即用户至少部分位于第三平面P3的左侧,为了方便用户观察油壶27内的油量,报警灯82设置在主把手243的左侧。主把手243上还设置有电量显示灯83,电量显示灯83用于显示电池包11的剩余电量。电量显示灯83 和报警灯82设置在主把手243的左侧。报警灯82和电量显示灯83均设置在第三平面P3的左侧。同时为了方便电路板26与报警灯82、电量显示灯83之间的连接,报警灯82和电量显示灯83邻近电路板26设置,示例性的,报警灯82和电量显示灯83均设置主把手243的后端部2432,即在前后方向上,电机22设置于油壶27和电量显示灯83之间,同样电机22设置在油壶27和报警灯82之间。在本实施例中,电池包11与主机20分离设置,而主机20上设置电量显示灯83,从而方便用户在操作过程中观察电池包11的剩余电量。
检测组件81用于检测油管28内是否有油,可选的,检测组件81邻近油壶27设置。检测组件81包括:检测元件、连接管812和安装壳体813,检测元件为光传感器811。光传感器811用于检测连接管812内是否有有油通过,连接管812用于连接油管28。光传感器811设置在安装壳体813内,连接管812至少部分设置在安装壳体813内,且光传感器811邻近连接管812设置。可选的,油管28具有第一段281和第二段282,连接管812连接第一段281和第二段282。检测组件81设置在第一段281和第二段282之间。连接管812设置在第一段281和第二段282之间以连接它们两者。也就是说,油管28被分割成两段,也就是第一段281和第二段282,而连接管812设置在第一段281和第二段282之间以连接它们两者,从而第一段281、连接管812和第二段282构成一个油路。这样,当检测组件81出现故障时,用户可以将检测组件81从油管28上拆卸下来进行更换或者维修,也即是说,检测组件81被设置成一个方便拆卸的模块。光传感器811检测连接管812内是否有油通过,并将光能转化为电信号发送给电路板26,电路板26接收电信号,电路板26根据该电信号控制报警灯82发出报警信号。
电机22设置在油壶27和电路板26之间。在前后方向上,油壶27设置在电机22的前侧,电路板26设置在电机22的后侧。检测组件81设置在油壶27的后侧,检测组件81还设置在电机22的下侧,这样可以充分利用电机22下侧的空间,从而提高主机20的紧凑型,缩小主机20的体积。
光传感器811包括:发光元件和接收元件,发光元件用于发射光线,接收件用于接收发光元件发射的光线。发光元件与接收元件分别设置在连接管812的两侧。当连接管812中没有油时,发光元件发出的光线被分散,接收元件接收不到足够的光线,则此时油壶27处于缺油的状态,报警灯82显示缺油信号。当连接管812中有油时,光线被油路折射汇聚,接收元件接收到足够的光线,则此时油壶27处于有油的状态,报警灯82显示有油信号。在本实施中,报警灯82是LED灯, 当油壶27处于缺油的状态时,LED灯闪烁,当油壶27处于有油的状态时,LED灯熄灭。或者,在其它实施例中,当油壶处于缺油的状态时,报警灯发出红光,而当油壶处于有油的状态时,报警灯发出绿光。
在本实施例中,油管28设置为非透明件,连接管812设置为透明件。油管28设置在安装壳体813外侧,油管28没有伸入至安装壳体813内,连接管812部分位于安装壳体813内,连接管812还伸出至安装壳体813外以与油管28连接,连接管812伸入至油管28内,油管28部分套装在连接管812外。这样,在保证检测组件81发出的光线能够穿过连接管812的情况下,还能够避免安装壳体813外界的光线通过油管28以及连接管812进入到安装壳体813内,从而影响检测组件81检测的准确性。
安装壳体813包括:第一壳体8131和第二壳体8132,第一壳体8131与第二壳体8132卡接,形成一安装空间。连接管812至少部分固定设置在安装间内,光传感器811固定设置在检测空间内。连接管812和光传感器811与第一壳体8131固定连接。在连接管812和光传感器811设置在第一壳体8131内后,向第一壳体8131内注入绝缘胶,从而能够有效防止灰尘、水汽进入到光传感器811以及连接管812内,提高检测组件81的性能,延长检测组件81的使用寿命。
如图1至图3,连接组件3还包括:保险组件50。保险组件50包括:保险元件,保险元件为安全阀51。当保险元件所受作用力大于等于预设安全值时,保险元件打开,从而使得连接组件3断开主机2和电池包11之间的机械连接,进而允许主机2脱离电池包22。其中,该作用力可以是持续施加在保险元件上的力,也可以是瞬间的施加在保险元件上的力。
电池包11与主机20分离,电池包11被安装至用户的身体上。当保险元件打开时,电池包11与用户所构成的整体与主机20之间的连接关系被打开,从而实现主机20与电池包11的脱离,以及主机20与用户的脱离。这样,能够避免当主机20受到较大的外力时而将外力传递至用户以造成的对用户的伤害。
电池包11连接至安装座40,安装座40可以被安装至用户的身体上。在本实施例中,链锯100还可以包括:腰带200,腰带200被安装至用户的腰上。腰带200可以被认为是属于链锯100的一部分,也可以是链锯100之外的部分,例如是用户自身自带的腰带。安装座40能被可拆卸的安装至腰带200上。电池包11被可拆卸的安装至安装座40上。这时,当保险元件打开时,保险元件断开主机20和安装座40的连接,从而实现主机20与电池包11的脱离,主机20与腰带200的脱离, 以及主机20与用户的脱离。保险元件与主机20连接,这样当主机20受到较大的外力时,外力传递至保险元件以使得保险元件受到一个大于等于预设安全值的作用力,这时保险元件打开,主机20在外力作用下使得电源线30的电源输出接口33脱离与主机20的连接,从而主机20与电源线30之间的连接断开,主机20与连接组件3之间的连接断开。在其它实施例中,电源线也可以与主机固定连接,电源线与安装座或者电池包构成可拆卸连接,这时保险元件可以对应的与安装座或者电池包连接,当保险元件打开时,主机和电源线所构成的整体在外力作用下脱离安装座和电池包,这样主机和电源线所构成的整体一并脱离用户。
保险组件50还包括:安全绳52,安全阀51被固定安装至安全绳52。由于主机20和电池包11时分离设置的,电池包11由用户随身携带,所以安全绳52用于连接主机20和用户的作用。安全绳52的一端与腰带200、安装座40或者电池包11固定连接,另一端与主机20构成可拆卸连接。这样,当安全阀51打开时,安全阀51和安全绳52会与用户连接在一起,而主机20会脱离用户、腰带200、安装座40、电源线30、安全绳52以及安全阀51所构成的整体。安全绳52远离主机20的一端与安装座40固定连接。安全绳52上还设置有第一连接件521和第二连接件522,第一连接件521能可拆卸的连接至腰带200,第二连接件522也能可拆卸的连接至腰带200。当第一连接件521连接至腰带200时,这时主机20与腰带200之间的距离较大,适合用户切割距离较远的植被。当第二连接件522连接至腰带200,这时主机20与腰带200之间的距离较小,适合用户切割距离较近的植被,而且这时还能够避免安全绳52过长而造成的容易被外界物体刮到的危险。
安全绳52通过安全阀51与主机20连接,安全绳52通过第一连接件521或第二连接件522与腰带相连,当安全阀51所受作用力大于等于预设安全值时安全阀51打开使得安全绳52与主机20连接断开,此时,安全绳52与腰带200的连接不断开。安全阀51的数量可以是一个也可以是多个,中间连接件的数量可以是一个也可以是多个。如果设置多个安全阀51以用于连接安全绳52和主机20,那么相比一个安全阀51的情况,此时设置的预设安全值应当更小。多个安全阀51可以造成主机20在下落过程中动量损失更大,使得主机20落地时可能不会被损坏,从而减轻用户损失。
在本实施例中,预设安全值大于等于15磅且小于等于400磅。这样,一方面,预设安全值不能设置的太小,这样能够避免当主机20受到较小的外力时也会使得主机20掉落,从而造成用户的损失。另一方面,预设安全值不能设置的太大, 这样能够避免当主机20受到很大的外力才能脱离用户而造成的对用户的伤害。在本实施例中,预设安全值大于等于25磅且小于等于200磅。示例性的,当安全绳52或者主机20受到一个外界的物体的瞬间作用时,主机会20快速掉落,这时安全阀51受到一个动态作用力,安全阀51在一个动态作用力作用下可能会打开。但是,考虑到安全阀51所受到的动态作用力无法检测,因此,本实施例中,安全阀51的预设安全值指的是当安全阀51受到一个静态作用力时而打开的该静态作用力的大小。例如说当安全阀51在静止时受到一个拉力而打开,该拉力的大小可以理解为预设安全值。
在预设安全值设定好后,当安全阀51受到的作用力大于等于预设安全值时,安全阀51打开。或者,在预设安全值设定好后,当安全阀51受到的作用力大于预设安全值时,安全阀51打开。
在其它实施例中,安全绳上也可以不设置中间连接件和安全阀,安全绳自身被制造成在受到预设作用力时发生断裂,也即是说利用安全绳本身的材质特性,使得当安全绳所受作用力大于等于预设安全值时安全绳断开,从而用户与主机20之间的连接断开。可选的,安全绳的材料可以是均一的,此时任何一处安全绳所受作用力大于等于预设安全值时均会断开。或者,安全绳的材料也可以是不均一的,此时只要满足部分安全绳所受作用力大于等于预设安全值时断开使得主机与用户之间的连接断开即可。
在本实施例中,电源线30连接主机20和用户身上的电池包11从而使得电池包11和主机20构成电连接,同时电源线30与主机20还构成可拆卸连接,因此当主机20受到一个小于预设安全值的作用力时,电源线30也能断开与主机20的连接。安全绳52连接主机20和与用户连接的安装座40。当安全绳52受到的作用力大于等于预设安全值时,电源线30与主机20的连接断开,安全绳52与主机20的连接也断开。安全绳52和电源线30可以不相连也可以相连,当两者不相连时应当设置有安全绳52的最大伸长长度小于电源线30的最大伸长长度,从而保证用户操作的安全性。安全绳52和电源线30不相连时,在主机20和用户之间存在两条线,容易发生干涉或者缠绕导致电源断电、操作不稳定等问题,为了避免以上问题,本申请中,安全绳52和电源线30连接在一起,使得整个组件结构更加精简。安全绳52和电源线30可以只是被限位件进行限位而不发生接触,也可以套装或者连接在一起。在本实施例中,如图22所示,安全绳52缠绕或者包裹在电源线30表面,安全绳52沿电源线30的延伸方向延伸,安全绳52的长度小于电 源线30的长度。安全绳52和电源线30的材质不限,安全绳52采用非弹性材料制成。
如图1和图22所示,电源线30包括:线芯30a和绝缘套30b,绝缘套30b围绕线芯30a,绝缘套30b保护线芯30a。安全绳52具有一个长度方向,安全绳52形成有沿长度方向贯穿自身的通孔,绝缘套30b至少一端穿过安全绳52。在本实施例中,安全绳52采用纤维材料制成,绝缘套30b采用橡胶材料制成。
在本实施例中,电源线30的长度大于等于0.5米且小于等于2.5米。示例性的,电源线30的长度大于等于1米且小于等于2米。这样,电源线30的长度不仅能够满足用户需要切割离自己距离较远的植被,同时还能避免电源线30过长而导致的容易缠绕到植物或者手臂的问题。
安全绳52的长度大于等于0.5米且小于等于2.5米。例如,电源线30的长度大于等于1米且小于等于2米。在本实施例中,安全绳52的长度还小于电源线30的长度。
电源线30的长度与导板233伸出至机壳24外的部分的长度L2的比值大于等于2且小于等于10。示例性的,电源线30的长度与导板233伸出至机壳24外的部分的长度L2的比值大于等于3且小于等于6。这样一方面可以减小链锯100的重量,还能够使得电源线30的长度以及导板233伸出至机壳24外的部分的长度L2满足用户需求的最远切割距离。
机壳24形成有连接部24c,安全阀51可拆卸的连接至连接部24c。在安全阀51所受作用力大于等于预设安全值时,安全阀51脱离于连接部24c,从而实现安全阀51脱离于主机20的连接。连接部24c设置在主机20的后端面246上,连接部24c为一个挂扣。挂扣转动连接至主机20的后端面246上。这样,如图1所示,用户可以根据需要打开挂扣,或者如图2所示使挂扣处于与机壳24贴合的状态。
如图1和图23所示,安装座40包括:底座40a和连接机构40b,底座40a用于安装电池包11,连接机构40b用于将安装座40连接至用户的腰带200。如图23至图26所示,连接机构40b包括能以第一连接方式连接至用户的腰带200的第一连接件,第一连接件可以是挂钩41。连接机构40b还包括以第二连接方式连接至用户的腰带200的第二连接件,第二连接件为连接带42。即安装座40通过挂钩41插入用户的腰带200,用以实现安装座40的初步定位,在本实施例中,挂钩41为金属件,连接带42为柔性件,连接带42采用纤维材料制成。挂钩41用于将安装座40悬挂在用户的腰带200上,连接带42用于将安装座40绑在用户的腰带上。挂钩 41通过螺钉连接至安装座40,连接带42可拆卸的安装至安装座40。
安装座40还把包括:可调节的连接带42的松紧程度的调节件,该调节件为能够绕轴线105转动的扳钮43,扳钮43与底座40a之间形成用于供连接带42穿过的间隙。连接带42包括:第一自由端421和第二自由端422。底座40a上形成或者连接有调节扣40c。当需要将连接带42安装至用户的腰带200时,首先将连接带42的第一自由端421安装至调节扣40c,然后使得连接带42穿过腰带200,再将扳钮43打开,然后将连接带42的第二自由端422穿过扳钮43与底座40a之间的间隙,拉紧第二自由端422,并将扳钮43关闭,从而使得安装座40被稳定的连接至腰带200。在本实施例中,连接带42的数目为2,挂钩41设置在两个连接带42之间。这样,安装座40安装的更加稳固,避免安装座40受力发生晃动,而导致安装座40脱离腰带200的情况。
如图25至图28所示,安装座40还包括:锁定组件44和弹出组件45,锁定组件44用于锁定和释放电池包11,弹出组件45用于当锁定组件44释放电池包11时弹出电池包11,从而能够保护安装座40内部的极片40d,防止用户接触极片40d,同时也可方便用户更换电池包11。可选的,弹出组件45与底座40a活动连接,弹出组件45包括:顶出件451和弹性件452,锁定组件44与底座40a活动连接,锁定组件44包括:拨钮441和锁扣442。在一实施例中,弹性件452的一端与顶出件451连接,弹性件452的另一端与底座40a连接。当电池包11未被结合至安装座40时,弹性件452将顶出件451顶出至第一位置,这时极片40d位于顶出件451内部,从而能够避免灰尘、水汽黏在极片40d上。而当电池包11插入安装座40时,顶出件451被电池包11按压向远离极片40d的方向运动,并使得极片40d露出,从而实现安装座40与电池包11的电连接,同时锁扣442锁住电池包11。当用户拨动拨钮441释放电池包11时,拨钮441带动锁扣442实现解锁,顶出件451受弹性件452的作用电池包11弹出,这时,顶出件451能够完全盖住极片40d。

Claims (21)

  1. 一种链锯,包括:
    主机;
    电池包,用于给所述主机提供能量,所述电池包和所述主机分离设置;
    连接组件,用于连接所述主机和所述电池包以使所述电池包和所述主机构成电连接;
    所述主机包括:
    链条,用于实现切割功能;
    导板,用于支撑所述链条;
    电机,用于驱动所述链条运动;
    机壳,用于容纳至少部分所述电机;
    其中,所述连接组件与所述主机或所述电池包构成可拆卸连接;
    所述导板向前伸出至所述机壳外,所述主机的重量与所述导板伸出至所述机壳外的部分的长度的比值大于等于6kg/m且小于等于20kg/m。
  2. 根据权利要求1所述的链锯,其中:
    所述连接组件包括:
    保险元件,在所述保险元件所受作用力大于等于预设安全值时,所述保险元件打开以使所述连接组件断开所述电池包和所述主机之间的连接。
  3. 根据权利要求2所述的链锯,其中:
    所述连接组件还包括:
    安全绳,所述保险元件安装至所述安全绳;
    所述保险元件用于与所述主机连接。
  4. 根据权利要求3所述的链锯,其中:
    所述连接组件还包括:
    安装座,用于安装所述电池包;
    电源线,包括用于与所述电池包或者所述安装座连接的第一端和与所述主机连接的第二端;
    其中,所述电源线的第二端与所述主机构成可拆卸连接。
  5. 根据权利要求4所述的链锯,其中:
    所述机壳包括:
    电源插入接口,内部设置有接入端子;
    其中,所述电源线的第二端设置有与所述电源插入接口构成可拆卸连接的 电源输出接口;所述保险元件为安全阀,在所述安全阀所受作用力大于等于所述预设安全值时,所述安全阀打开使得所述保险元件与所述主机断开,且所述电源线与所述电源插入接口脱离。
  6. 根据权利要求2所述的链锯,其中:
    所述预设安全值大于等于15磅且小于等于400磅。
  7. 根据权利要求2所述的链锯,其中:
    所述预设安全值大于等于25磅且小于等于200磅。
  8. 根据权利要求4所述的链锯,其中:
    所述安装座包括:
    底座,用于结合所述电池包;
    连接件,用于将所述安装座安装至用户的腰带;
    其中,所述连接件为柔性件。
  9. 根据权利要求4所述的链锯,其中:
    所述安装座包括:
    底座,用于结合所述电池包;
    第一连接件,用于以第一连接方式将所述安装座安装至用户的腰带;
    第二连接件,用于以第二连接方式将所述安装座安装至用户的腰带;
    所述第一连接件为非柔性件,所述第二连接件为柔性件。
  10. 根据权利要求1所述的链锯,其中:
    所述连接组件包括:
    安装座,用于安装所述电池包;
    电源线,包括用于与所述电池包或者所述安装座连接的第一端和与所述主机连接的第二端;
    所述安装座包括:
    底座,用于结合所述电池包;
    连接件,用于将所述安装座安装至用户的腰带;
    其中,所述连接件为柔性件。
  11. 根据权利要求3所述的链锯,其中:
    所述连接组件还包括:
    安装座,用于安装所述电池包;
    电源线,包括用于与所述电池包或者所述安装座连接的第一端和与所述主 机连接的第二端。
  12. 根据权利要求11所述的链锯,其中:所述安全绳围绕至所述电源线的表面。
  13. 根据权利要求11所述的链锯,其中:所述安全绳的长度基本固定。
  14. 根据权利要求11所述的链锯,其中:所述安全绳为非弹性绳。
  15. 根据权利要求11所述的链锯,其中:所述电源线的长度与所述导板伸出至所述机壳外的部分的长度的比值大于等于2且小于等于10。
  16. 根据权利要求11所述的链锯,其中:
    所述电源线包括:
    线芯;
    绝缘套,围绕所述线芯;
    所述安全绳具有一个长度方向,所述安全绳形成有沿长度方向贯穿自身的通孔,所述绝缘套的至少一端穿过所述安全绳。
  17. 根据权利要求5所述的链锯,其中:
    所述机壳包括主把手,所述主把手设置于所述机壳的上侧,所述电源插入接口设置于所述主把手的左侧,所述导板设置于所述主把手的右侧。
  18. 根据权利要求5所述的链锯,其中:
    所述机壳还包括:
    前端面,形成有供所述导板伸出的前端口;
    后端面,与所述前端面相对;
    其中,在沿前后方向上,所述电源插入接口设置于所述前端面和所述后端面之间。
  19. 根据权利要求5所述的链锯,其中:
    所述电源插入接口形成有向后敞开的连接口,所述电源线的第二端从所述连接口处插入所述电源插入接口。
  20. 根据权利要求1所述的链锯,其中:
    所述主机的重量与所述导板伸出至所述机壳外的部分的长度的比值大于等于8.5kg/m且小于等于13kg/m。
  21. 根据权利要求1所述的链锯,其中:
    所述电机的输出功率与所述主机的重量的比值大于等于250W/kg且小于等于800W/kg。
PCT/CN2020/091341 2019-12-31 2020-05-20 链锯 Ceased WO2021135047A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20911026.1A EP4056307B1 (en) 2019-12-31 2020-05-20 Chainsaw
US17/835,291 US11518059B2 (en) 2019-12-31 2022-06-08 Chainsaw

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911411309 2019-12-31
CN201911411309.9 2019-12-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/835,291 Continuation US11518059B2 (en) 2019-12-31 2022-06-08 Chainsaw

Publications (1)

Publication Number Publication Date
WO2021135047A1 true WO2021135047A1 (zh) 2021-07-08

Family

ID=76687058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/091341 Ceased WO2021135047A1 (zh) 2019-12-31 2020-05-20 链锯

Country Status (3)

Country Link
US (1) US11518059B2 (zh)
EP (1) EP4056307B1 (zh)
WO (1) WO2021135047A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133255A1 (en) * 2022-01-06 2023-07-13 Milwaukee Electric Tool Corporation High power compact cordless chainsaw

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214758032U (zh) * 2020-10-29 2021-11-19 南京德朔实业有限公司 链锯
US11697199B2 (en) * 2021-02-24 2023-07-11 Towa Industries, Incorporated Power landscaping tool ensemble for using multiple tool heads
USD1119499S1 (en) * 2021-10-22 2026-03-24 Husqvarna Ab Chainsaw
USD1044448S1 (en) * 2021-12-01 2024-10-01 Globe (jiangsu) Co., Ltd. Chain saw

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2698539Y (zh) * 2004-05-17 2005-05-11 长春神箭电动工具有限责任公司 一种电链锯
CN201816142U (zh) * 2010-09-09 2011-05-04 北京凌天世纪自动化技术有限公司 混凝土切割链条锯
WO2012039488A1 (en) * 2010-09-22 2012-03-29 Hitachi Koki Co., Ltd. Chain saw
CN202367273U (zh) * 2011-11-18 2012-08-08 浙江亚特电器有限公司 蓄电池驱动的链锯
JP2017013296A (ja) * 2015-06-30 2017-01-19 日立工機株式会社 チェンソー
CN206389832U (zh) * 2017-01-03 2017-08-11 王永兵 一种单握式锂电电链锯
CN207273156U (zh) * 2017-09-06 2018-04-27 南京德朔实业有限公司 背负式工具系统
CN109664373A (zh) * 2017-10-13 2019-04-23 株式会社牧田 链锯

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483070A (en) * 1982-09-21 1984-11-20 Joane G. Tannehill Portable backpacked cutter
DE3643558A1 (de) * 1986-12-19 1988-07-07 Wolf Geraete Gmbh Elektromotorisches antriebssystem
US20070240892A1 (en) * 2005-11-04 2007-10-18 Black & Decker Inc. Cordless outdoor power tool system
FR2925384B1 (fr) * 2007-12-20 2011-11-18 Pellenc Sa Scie a chaine portative electrique
ITPD20110144A1 (it) * 2011-05-06 2012-11-07 Zanon S R L Apparecchiatura portatile per l'alimentazione e il controllo di attrezzi elettrici, particolarmente per uso agricolo
US9893329B2 (en) * 2014-07-04 2018-02-13 Makita Corporation Electronic power supply device
EP3023201B1 (de) * 2014-11-20 2017-09-06 Andreas Stihl AG & Co. KG Motorsägenanordnung und Seilbaugruppe für eine Motorsäge
US10892449B2 (en) * 2017-09-06 2021-01-12 Nanjing Chervon Industry Co., Ltd. Backpack tool system and backpack power supply apparatus thereof
ES2932263T3 (es) * 2018-09-17 2023-01-17 Stihl Ag & Co Kg Andreas Dispositivo de transporte en la espalda, en particular para un paquete de baterías
CN211682566U (zh) * 2018-12-11 2020-10-16 南京德朔实业有限公司 链锯

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2698539Y (zh) * 2004-05-17 2005-05-11 长春神箭电动工具有限责任公司 一种电链锯
CN201816142U (zh) * 2010-09-09 2011-05-04 北京凌天世纪自动化技术有限公司 混凝土切割链条锯
WO2012039488A1 (en) * 2010-09-22 2012-03-29 Hitachi Koki Co., Ltd. Chain saw
CN202367273U (zh) * 2011-11-18 2012-08-08 浙江亚特电器有限公司 蓄电池驱动的链锯
JP2017013296A (ja) * 2015-06-30 2017-01-19 日立工機株式会社 チェンソー
CN206389832U (zh) * 2017-01-03 2017-08-11 王永兵 一种单握式锂电电链锯
CN207273156U (zh) * 2017-09-06 2018-04-27 南京德朔实业有限公司 背负式工具系统
CN109664373A (zh) * 2017-10-13 2019-04-23 株式会社牧田 链锯

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4056307A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133255A1 (en) * 2022-01-06 2023-07-13 Milwaukee Electric Tool Corporation High power compact cordless chainsaw

Also Published As

Publication number Publication date
EP4056307A4 (en) 2023-01-04
EP4056307A1 (en) 2022-09-14
EP4056307B1 (en) 2024-04-03
US20220297338A1 (en) 2022-09-22
US11518059B2 (en) 2022-12-06

Similar Documents

Publication Publication Date Title
CN212045127U (zh) 链锯
WO2021135047A1 (zh) 链锯
CN206173877U (zh) 扫雪机和动力工具
CN2566606Y (zh) 电动割草机
US20170066119A1 (en) Handheld electric tool
CN106134617A (zh) 打草机
EP1281465A1 (en) Cutting tool having lighting devices
JP2011507728A (ja) 携帯式電動チェーンソー
JP2013521136A (ja) バッテリー駆動電動工具
US20240074359A1 (en) Power device and power tool
US11559916B2 (en) Electric working machine
WO2021109603A1 (zh) 切割工具
WO2024067391A1 (zh) 一种链锯
CN215646533U (zh) 动力装置
CN111774660A (zh) 切割装置
US20190030746A1 (en) Chainsaw
US20050188551A1 (en) Illuminating brake release for a motor chain saw
US20250187224A1 (en) Chainsaw
CN114193557B (zh) 链锯
AU2021274591B2 (en) Power unit
WO2025140026A1 (zh) 切割工具
CN218604329U (zh) 一种手持式链锯
CN114514376A (zh) 空气压缩装置
US20260001209A1 (en) Power tool system
EP4431242A1 (en) Power tool

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911026

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020911026

Country of ref document: EP

Effective date: 20220609

NENP Non-entry into the national phase

Ref country code: DE