WO2019031273A1 - Dispositif électrique - Google Patents

Dispositif électrique Download PDF

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Publication number
WO2019031273A1
WO2019031273A1 PCT/JP2018/028259 JP2018028259W WO2019031273A1 WO 2019031273 A1 WO2019031273 A1 WO 2019031273A1 JP 2018028259 W JP2018028259 W JP 2018028259W WO 2019031273 A1 WO2019031273 A1 WO 2019031273A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery pack
abnormality
battery
unit
control unit
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/JP2018/028259
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English (en)
Japanese (ja)
Inventor
勇祐 船引
政幸 小倉
寺西　卓也
直人 若田部
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.)
Koki Holdings Co Ltd
Original Assignee
Koki Holdings 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 Koki Holdings Co Ltd filed Critical Koki Holdings Co Ltd
Priority to JP2019535105A priority Critical patent/JPWO2019031273A1/ja
Publication of WO2019031273A1 publication Critical patent/WO2019031273A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18—Devices for illuminating the head of the screw or the nut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the user can not determine which of the battery pack and the main body the abnormality has occurred if the notification part notifying the abnormality on the battery pack side and the notification part notifying the high temperature abnormality on the main body side are the same.
  • the main body side notification unit may be a lighting unit that irradiates a work location.
  • the battery side notification unit may be a remaining capacity display unit that displays the remaining capacity of the battery pack.
  • the main body notification unit may not notify of an abnormality in the battery pack.
  • the abnormality may include a temperature abnormality.
  • the abnormality may include a current abnormality, and at least one of the main body-side notification unit and the battery-side notification unit may perform notification in different modes depending on temperature abnormality and current abnormality.
  • Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the apparatus body reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
  • Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the battery pack reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
  • Another aspect of the present invention is an electric device including a battery pack and an apparatus body connected to the battery pack, wherein either the apparatus body or the battery pack has an abnormality notification unit.
  • the abnormality notification unit performs notification of different modes depending on an abnormality in the device body and an abnormality in the battery pack.
  • the device body has a main body side control unit, the battery pack has a battery side control unit, and the battery side control unit detects the abnormality in the battery pack, the main body side control unit
  • the abnormality detection signal may be transmitted to the main body control unit, and the main body control unit may stop the operation of the device main body when the abnormality detection signal is received.
  • an electrical device capable of quickly determining which of a battery pack and a main body has an abnormality.
  • FIG. 2 is an external view of a switch panel 62 of FIG. 1; The lighting state explanatory drawing of the LED light 58 of FIG. 1 in each case in which the overload protection function and the temperature protection function were operated.
  • FIG. 2 is a perspective view of the battery pack 10 of FIG. 1; The lighting state explanatory drawing of the remaining capacity display means 17 of FIG. 4 according to a battery remaining amount, the presence or absence of temperature protection function operation
  • the block diagram of the state which connected the electric tool 50 and the battery pack 10 mutually.
  • the control flow chart of battery pack 10. The flowchart which shows the 1st example of motor drive control in electric tool 50 for controlling that temperature of secondary battery cell 11 shown in Drawing 12 becomes high temperature protection threshold (80 ° C).
  • FIG. 14 is a time chart showing a first example of the operation of the electric power tool 50 and the battery pack 10 based on the flowchart shown in FIG. 13.
  • 10 is a flowchart showing a second example of motor drive control in the electric power tool 50.
  • 16 is a time chart showing a second example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG.
  • FIG. 1 is a side view of a state where a battery pack 10 is connected, of an electric power tool 50 which is an example of an electric device according to an embodiment of the present invention.
  • the electric power tool 50 is a cordless type portable cutting machine (portable circular saw), and operates with the power of the battery pack 10 detachably mounted.
  • the battery pack 10 is slidably attached to the rear end portion of the housing 60 of the power tool 50 from the rear.
  • the housing 60 is connected to a metal base 71 such as aluminum and positioned above the base 71.
  • the lower surface of the base 71 is a sliding surface with the work material.
  • FIG. 3 is an explanatory view of the lighting state of the LED light 58 of FIG. 1 in each case where the overload protection function and the temperature protection function are activated.
  • the LED light 58 is a light that illuminates the work material and is an example of the main body side informing unit, and under the control of the control unit 55 shown in FIG. Lights are turned on and off repeatedly every second), and when the temperature protection function is activated, it blinks slowly (for example, it is turned on and off every 0.5 seconds) and the user is notified. Notification of the operation of the protection function by blinking of the LED light 58 may be performed when the light lighting switch 59 is pressed, or an overload or high temperature state occurs regardless of whether the light lighting switch 59 is pressed or not. It may be done automatically at the same time. The LED light 58 does not notify of overdischarge or high temperature abnormality of the battery pack 10.
  • FIG. 4 is a perspective view of the battery pack 10 of FIG.
  • the battery pack 10 incorporates the secondary battery cell 11 and the control unit 15 shown in FIG. 6 and other various circuit components, and has a switch panel 20 at a portion facing above the rear outer surface.
  • the switch panel 20 is provided with a remaining capacity display unit 17 and a remaining capacity display switch 19.
  • the remaining capacity display unit 17 is four LEDs here, and as described later, functions as a battery side notification unit that displays the remaining capacity of the battery pack 10 and reports an abnormality inside the battery pack 10.
  • the remaining capacity display switch 19 is an example of a notification operation unit, and is a switch (here, a button switch) for the user to instruct the presence / absence of display by the remaining capacity display means 17.
  • FIG. 5 is an explanatory view of the lighting state of the remaining capacity display means 17 of FIG.
  • remaining capacity display means 17 turns on all four LEDs when battery pack 10 is fully charged, and the number of lighted LEDs decreases in stages as remaining capacity of battery pack 10 decreases.
  • one LED blinks four LEDs blink when the temperature protection function of the battery pack 10 is activated, and two LEDs blink when the battery pack 10 breaks down.
  • the number of blinks of the LEDs and the method of blink are not limited to this.
  • FIG. 6 is a block diagram of the state where the power tool 50 and the battery pack 10 are connected to each other.
  • each of the battery pack 10 and the power tool 50 includes a plus terminal, an LS terminal, a V terminal, a T terminal, an LD terminal, and a minus terminal.
  • the terminals of the same name of the battery pack 10 and the power tool 50 are electrically connected to each other.
  • Battery pack 10 includes a plurality of (here, five) secondary battery cells 11 connected in series between its plus terminal and minus terminal.
  • the cell voltage monitoring IC 12 monitors the voltage of each of the secondary battery cells 11, and determines that the battery is overdischarged when the voltage of at least one of the secondary battery cells 11 becomes lower than a predetermined value, and the control unit (battery side control unit) Send an overdischarge detection signal to 15.
  • a resistor R1 for current detection is connected in series.
  • the current detection circuit 14 detects the output current of the secondary battery cell 11 by the voltage across the resistor R1 and transmits the detection result to the control unit 15.
  • the power supply circuit 13 generates an operating voltage VDD1 of the cell voltage monitoring IC 12 and the control unit 15 from the output voltage of the secondary battery cell 11.
  • the battery voltage detection circuit 16 detects the output voltage of the secondary battery cell 11 and transmits the detection result to the control unit 15.
  • the remaining capacity display unit 17 is, for example, an LED, and displays (notifies) the remaining capacity of the battery pack 10 to the user under the control of the control unit 15.
  • the cell temperature detection unit 18 detects the temperature of the secondary battery cell 11 based on the voltage of the thermistor TH disposed in the vicinity of the secondary battery cell 11, and transmits the detection result to the control unit 15.
  • the remaining capacity display switch 19 is a switch for instructing the user to display the remaining capacity on the remaining capacity display means 17.
  • the battery pack 10 includes a serial communication receiving circuit 31 forming a path for causing the control unit 15 to receive a serial communication signal (digital signal) transmitted from the power tool 50, and an analog voltage (secondary battery) at one end of the thermistor TH.
  • Temperature information transmitting circuit 32 forming a path for transmitting the temperature information of the cell 11 to the electric power tool 50.
  • the LS terminal of the battery pack 10 is alternatively connected to one of the serial communication reception circuit 31 and the temperature information transmission circuit 32 through the first switching circuit 21.
  • the first switching circuit 21 has one end connected to the LS terminal, the control terminal connected to the V terminal, and the other end connected to the serial communication receiving circuit 31 and the temperature information transmitting circuit 32 according to the signal input from the V terminal.
  • the other end of the first switching circuit 21 is connected to the serial communication receiving circuit 31, and when the signal from the V terminal is at the high level, the other terminal of the first switching circuit 21 is The other end is connected to the temperature information transmission circuit 32.
  • One end of the thermistor TH is connected to the other end of the first switching circuit 21.
  • a switching element Q1 such as an FET is provided between the other end of the thermistor TH and the ground.
  • the third switching circuit 23 has one end connected to the V terminal, the control terminal connected to the control unit 15, and the other end connected to the control terminal (gate) of the switching element Q1 according to a signal input from the control unit 15. It is alternatively connected to one end of the thermistor TH (the other end of the first switching circuit 21).
  • the battery pack 10 is directed to the power tool 50 from the control unit 15 and the identification information transmission circuit 35 forming a path for transmitting the analog voltage (identification information of the battery pack 10) at one end of the identification resistance Ra to the power tool 50.
  • a serial communication transmission circuit 36 forming a path for transmitting a serial communication signal (digital signal).
  • the T terminal of the battery pack 10 is alternatively connected to one of the identification information transmission circuit 35 and the serial communication transmission circuit 36 via the second switching circuit 22.
  • the second switching circuit 22 has one end connected to the T terminal, the control terminal connected to the control unit 15, and the other end transmitting the identification information transmission circuit 35 and serial communication according to the signal input from the control unit 15. It is alternatively connected to one of the circuits 36.
  • a switching resistor Q2 such as a switching resistor Rb and a FET is connected in parallel between the other end of the switching resistor Ra and the ground.
  • the control terminal (gate) of the switching element Q2 is connected to the V terminal.
  • a switching element Q3 such as an FET is provided between the LD terminal and the ground.
  • the control terminal (gate) of the switching element Q3 is connected to the control unit 15. When the signal input from the control unit 15 to the control terminal is at the high level, the switching element Q3 is turned on, and when the signal is at the low level, the switching element Q3 is turned off.
  • a motor 51 as a driving source is a brushless motor.
  • the motor 51 may be a brushed motor.
  • the inverter circuit 65 is composed of switching elements such as FETs and IGBTs connected in a three-phase bridge manner as known in the art, and supplies a drive current to the motor 51. Switching control (for example, PWM control) of each switching element is performed by a control unit 55 such as a microcontroller.
  • the drive current of the motor 51 is converted into a voltage by the resistor R5, detected by the current detection circuit 54 that has received the voltage, and transmitted to the control unit 55.
  • the control unit 55 has terminals connected to the LS terminal, the V terminal, the T terminal, and the LD terminal.
  • One end of the resistor R6 is connected to the power supply line.
  • a resistor R7 and a switching element Q6 such as an FET are connected in series between the other end of the resistor R6 and the ground.
  • the interconnection point of the resistor R6 and the resistor R7 is connected to the LS terminal.
  • the control terminal (gate) of the switching element Q6 is connected to the control unit 55.
  • the resistor R8 is provided between the power supply line and the T terminal.
  • the resistor R9 is provided between the power supply line and the LD terminal.
  • the control unit 55 of the power tool 50 can switch the function of the LS terminal by the signal transmitted to the battery pack 10 via the V terminal. Specifically, when the control unit 55 transmits a high level signal from the V terminal, the connection destination of the other end of the first switching circuit 21 becomes the temperature information transmitting circuit 32, and via the first switching circuit 21 and the LS terminal Thus, the voltage at one end of the thermistor TH can be received.
  • the control unit 15 of the battery pack 10 normally uses the connection destination of the other end of the third switching circuit 23 as the control terminal of the switching element Q1.
  • the switching element Q1 when the signal of the V terminal is at high level, the switching element Q1 is It turns on, and an analog voltage corresponding to the temperature of the secondary battery cell 11 is output to one end (the temperature information transmission circuit 32) of the thermistor TH.
  • the switching element Q2 When the signal at the V terminal is at high level, the switching element Q2 is turned on, and the voltage at the T terminal becomes a first identification voltage obtained by dividing the power supply voltage VDD2 of the power tool 50 by the resistor R8 and the resistor Ra.
  • the contents of the serial communication signal transmitted from the battery pack 10 to the power tool 50 include, for example, the type and model number of the battery pack 10, the type of the secondary battery cell 11, error log, use history information, and information required for the power tool 50 Etc. Note that all the information may be transmitted from the battery pack 10 to the power tool 50, or only the information requested from the power tool 50 may be transmitted.
  • the identification information of the battery pack 10 can be notified in more or more detail than the voltages of the identification resistances Ra and Rb.
  • serial (digital) communication one signal is output to the other by inputting / outputting a high signal or low signal output from one control unit (microcomputer) to the other control unit (microcomputer).
  • the control unit 15 of the battery pack 10 sets the connection destination of the other end of the third switching circuit 23 to one end of the thermistor TH 1) the other end of the switching circuit 21). Since the charger sets the signal of the V terminal to high level during charging, the connection destination of the other end of the first switching circuit 21 is the temperature information transmission circuit 32. Therefore, the signal (high level) of the V terminal is transmitted to the charger via the third switching circuit 23, the first switching circuit 21 and the LS terminal, and notification of the charge stop is notified.
  • FIG. 8 is a second control flowchart of the power tool 50.
  • the control unit 55 After confirming that the trigger switch 52 is turned off after the LED light 58 is turned off (S13) (YES in S16), the control unit 55 returns to the standby state (S1). In this case, after the LED light 58 is turned off (S13) because the trigger switch 52 is turned on (YES in S12), the motor 51 is not restarted unless the trigger switch 52 is once turned off. Can be prevented from rotating unexpectedly.
  • FIG. 10 is a fourth control flowchart of the power tool 50.
  • the drive current of motor 51 (hereinafter also referred to as "motor current”) becomes 110A or more, which is an example of the overcurrent threshold (YES in S5a)
  • controller 55 controls motor 51 while driving motor 51 (S5).
  • the operation is stopped (S7), and the LED light 58 is blinked (S8a).
  • the blinking here is a repetition of lighting for 0.1 seconds and turning off for 0.1 seconds (fast blinking in FIG. 3).
  • control unit 15 clears the switch off timer (S115).
  • control section 15 continues the OFF state of remaining capacity display switch 19 for 3 seconds, which is an example of a predetermined time (YES in S117). It returns to S101. If the off state of the remaining capacity display switch 19 does not continue for 3 seconds (NO in S117), the control unit 15 increments the switch off timer (S119). If the output voltage (hereinafter also referred to as "battery voltage") of the secondary battery cell 11 is less than V1 (YES in S121), the control unit 15 blinks one LED of the remaining capacity display means 17 (S123).
  • the controller 15 turns on the two LEDs of the remaining capacity display means 17 (S141). If the battery voltage is V2 or less (NO in S139), the control unit 15 causes one LED of the remaining capacity display unit 17 to light (S143).
  • FIG. 13 is a flowchart showing a first example of motor drive control in the power tool 50 for suppressing the temperature of the secondary battery cell 11 from becoming the high temperature protection threshold (80 ° C.) shown in FIG.
  • the control unit 15 of the battery pack 10 detects the temperature of the secondary battery cell 11 (S51), and if it is 60 ° C. or more, which is an example of a predetermined temperature lower than the high temperature protection threshold (YES in S52), for serial communication Temperature information of the battery pack 10 (secondary battery cell 11) is transmitted to the control unit 55 via the transmission circuit 36.
  • control unit 55 when the control unit 55 does not receive temperature information (signal of a predetermined temperature or more) of the battery pack 10 through the serial communication transmission circuit 36, the control unit 55 periodically reads the temperature information through the serial communication transmission circuit 36. If the temperature of the next battery cell 11 is not 60 ° C. or higher (NO in S52), constant rotation number control is performed (S55), and the duty is adjusted so that the rotation number of the motor 51 becomes constant (S56). In the constant rotation speed control, since the motor 51 can be driven normally, the control mode LED is turned off (S57).
  • FIG. 14 is a time chart showing a first example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG.
  • the control unit 55 controls the duty to control the motor 51 at a constant rotation number, and the temperature of the secondary battery cell 11 rises.
  • time t5 when the temperature of the secondary battery cell 11 reaches 60 ° C., constant duty control with a duty 50% lower than the current duty is performed, and the temperature of the secondary battery cell 11 decreases due to a decrease in motor current.
  • the rise is gradual compared to before time t5.
  • the motor 51 is stopped to protect the secondary battery cell 11 from high temperature.
  • FIG. 15 is a flow chart showing a second example of motor drive control in the electric power tool 50.
  • the control unit 55 detects the temperature of the switching element constituting the inverter circuit 65 (S51a), and if it is 80.degree. C. or more which is an example of a predetermined temperature lower than the high temperature threshold (100.degree. C.) shown in FIG. YES), the duty is fixed at 100% and the motor 51 is driven (S53a). At this time, in order to indicate that the control is performed with the duty fixed at 100% because the temperature of the switching element is high, display by the control mode LED is performed (S54a).
  • the control mode LED uses the LED light 58 to perform display, for example, in a blinking cycle other than the display shown in FIG.
  • the abnormality of the power tool 50 is displayed by the LED light 58 of the power tool 50, and the abnormality of the battery pack 10 is displayed by the remaining capacity display means 17 of the battery pack 10. It is possible to quickly determine which of the ten has an abnormality. If it is recognized that the battery pack 10 is abnormal, the power tool 50 can be used immediately by replacing it with another battery pack 10, and work efficiency can be improved.
  • the LED light 58 for illuminating the work material is also used to notify the abnormality of the electric power tool 50, the number of parts can be reduced as compared with the case where an LED for notifying the abnormality is separately provided.
  • the remaining capacity display means 17 for displaying the remaining capacity of the battery pack 10 is also used to notify of an abnormality in the battery pack 10, the number of parts can be reduced as compared with the case where an LED for error notification is separately provided.
  • both of the power tool 50 and the battery pack 10 may be displayed on the remaining capacity display means 17 of the battery pack 10.
  • the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 displays the remaining capacity display of the battery pack 10
  • the switch 19 it may be possible to determine which of the power tool 50 and the battery pack 10 has become abnormal by changing the blink pattern and the number of blinks.
  • the battery pack 10 may be provided with a notification unit (such as an LED) for notifying of an abnormality of the power tool 50 separately from the remaining capacity display unit 17.
  • the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 is displayed.
  • the switch panel 62 of the power tool 50 is displayed.
  • Remaining capacity display means 18: cell temperature detection means, 19: remaining capacity display switch, 20: switch panel, 21: first switching circuit, 22: second switching circuit, 23: third switching circuit, 31: for serial communication Reception circuit 32 Temperature information transmission circuit 35 Identification information transmission circuit 36 Transmission circuit for serial communication 50 Power tool 51 Motor 52 Trigger switch 53 Switch state detection circuit 54 Current detection Circuits 55: control unit (body side control unit) 56: power supply circuit 57: battery voltage detection circuit 58: LED light 59: light lighting switch 60: housing 61: grip portion 2 ... switch panel, 63 ... lighting state display LED, 65 ... inverter circuit, 66 ... temperature detecting element, 67 ... inverter temperature detecting circuit, 70 ... saw blade, 71 ... base

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  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Biophysics (AREA)
  • Computer Hardware Design (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Power Tools In General (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Dispositif électrique pouvant distinguer rapidement, entre un bloc-batterie et un corps principal, dans lequel il s'est produit une erreur. Un outil électrique (50) comporte une lumière à DEL (58) qui notifie des erreurs à l'intérieur de l'outil électrique (50). La lumière à DEL (58) éclaire une pièce. Un moyen d'affichage de capacité résiduelle (17) dans un bloc-batterie (10) sert également d'unité de notification côté batterie qui notifie des erreurs à l'intérieur du bloc-batterie (10). Une unité de commande (55) pour l'outil électrique (50) amène la lumière à DEL (58) à clignoter lentement si une erreur de température élevée est détectée dans un élément de commutation d'un circuit onduleur (65) et amène la lumière à DEL (58) à clignoter rapidement si une surintensité est détectée Une unité de commande (15) pour le bloc-batterie (10) amène une DEL dans le moyen d'affichage de capacité résiduelle (17) à clignoter si une surdécharge est détectée et amène quatre DEL dans le moyen d'affichage à capacité résiduelle (17) à clignoter si une erreur à température élevée est détectée dans un élément de batterie secondaire (11).
PCT/JP2018/028259 2017-08-09 2018-07-27 Dispositif électrique Ceased WO2019031273A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019535105A JPWO2019031273A1 (ja) 2017-08-09 2018-07-27 電気機器

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JP2017-154814 2017-08-09
JP2017154814 2017-08-09

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WO2019031273A1 true WO2019031273A1 (fr) 2019-02-14

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WO2020054808A1 (fr) * 2018-09-14 2020-03-19 株式会社マキタ Outil à moteur et bloc-batterie
JP2021016936A (ja) * 2019-07-19 2021-02-15 株式会社マキタ 電動工具及び回転工具
CN112706131A (zh) * 2019-10-25 2021-04-27 南京德朔实业有限公司 电动工具
EP3954265A1 (fr) 2020-08-12 2022-02-16 Vorwerk & Co. Interholding GmbH Système comprenant un appareil électroménager et un accumulateur comportant un dispositif d'affichage optique
JP2022047700A (ja) * 2020-09-14 2022-03-25 株式会社マキタ 充電器
SE2150204A1 (en) * 2021-02-26 2022-08-27 Husqvarna Ab Handheld Power Tool with Fault Data Indication Device
US11642772B2 (en) 2019-07-19 2023-05-09 Makita Corporation Power tool and rotary tool
US11979049B2 (en) 2018-09-14 2024-05-07 Makita Corporation Electric work machine
EP4613169A4 (fr) * 2022-11-04 2026-03-04 Lg Electronics Inc Dispositif de nettoyage et procédé de commande associé
WO2026053609A1 (fr) * 2024-09-04 2026-03-12 パナソニック株式会社 Outil électrique
US12604798B2 (en) 2021-09-29 2026-04-21 Techtronic Cordless Gp Robot gardening tool system and method for robot gardening tool

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