JPH0533614B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vacuum cleaner using a plurality of batteries as a power source, and more particularly to a structure for arranging and holding a motor and batteries.

(Prior Art) Conventionally, in a handy type vacuum cleaner that uses a secondary battery as a power source, for example, Japanese Patent Application Laid-Open No. 55-6373
As described in Japanese Patent Application Laid-open No. 60-80420, an electric motor that rotates a dust suction fan and a battery that drives this electric motor are arranged in parallel inside the vacuum cleaner body. structure is known.

In these conventional vacuum cleaners, the electric motor that rotates the fan and the battery are each housed and supported separately, making the structure inside the vacuum cleaner complex, making it difficult to store, and making the vacuum cleaner itself difficult to store. A major problem arose.

(Problems to be Solved by the Invention) As described above, in conventional vacuum cleaners, multiple electric motors and batteries are housed and supported separately, which inevitably complicates the structure within the vacuum cleaner body. There was a problem that hindered miniaturization of the vacuum cleaner body.

The present invention aims to solve these problems, and is a vacuum cleaner in which a dust suction fan is operated by driving an electric motor that rotates a fan using a battery, while reliably holding the electric motor and battery. To provide a vacuum cleaner whose height can be reduced and the size of the vacuum cleaner body can be reduced.

(Means for Solving the Problems) The vacuum cleaner of the present invention includes a vacuum cleaner body that forms a dust collection chamber in the front part and has a handle, a fan built in the rear part of the vacuum cleaner body, and a rotating fan that rotates the vacuum cleaner body. The vacuum cleaner is equipped with an electric blower consisting of an electric motor, and a plurality of batteries built into the vacuum cleaner body to drive the electric motor. A rectifying plate is installed in the vacuum cleaner main body, and has a support protrusion projecting rearward toward the rear, and has holding ribs spaced apart from each other on both sides of the lower side of the cylindrical holder. holding the outer periphery of the front end of the electric motor, and holding the outer periphery of the battery on each of the holding ribs and attaching it to the rectifying plate, and interposing a buffer on the support protrusion and the lower outer periphery of the rear end of the electric motor, respectively. The electric motor has a front end portion held by the cylindrical holding portion and a rear end portion supported by both the batteries via the buffer body, and the batteries are connected to the electric motor and the battery via the respective holding ribs and the buffer body. It is supported at three points including the protrusion via the buffer.

(Function) In the vacuum cleaner of the present invention, the cylindrical holding part holds the outer periphery of the front end of the electric motor that rotates the fan, and each holding rib holds the outer periphery of the battery, so that the rectifier plate is installed inside the vacuum cleaner body. The electric motor and battery can be held and supported, and the rear end of the electric motor is supported by both batteries via a buffer that is interposed on the lower outer periphery of the rear end of the electric motor, and the battery is supported by the respective retaining ribs and support protrusions. The motor is connected to the motor via a buffer provided on the outer periphery and the support protrusion is connected to the support projection via the buffer.
The motor and battery can be supported with a simple structure, and the vibration of the motor during operation can be absorbed by the shock absorber. Furthermore, the batteries are placed apart from each other at the bottom of the motor, allowing the bottom of the motor to be placed between the left and right batteries, allowing the height of the vacuum cleaner to be lowered, making it possible to simplify the structure and downsize the vacuum cleaner. Become.

(Embodiment) Next, the configuration of an embodiment of the vacuum cleaner of the present invention will be described based on FIGS. 1 to 3.

Reference numeral 1 denotes a vacuum cleaner body, which is composed of a main body case 2 and a dust collection case 3 detachably attached to the front side of the main body case 2. In addition, the main body case 2
It consists of a pair of case members 4 and 5 which are divided into left and right parts and are connected by screws or the like.

The dust collecting case 3 has a dust collecting chamber 11 inside thereof, and a cylindrical suction port 12 is formed at the front bottom of the dust collecting case 3 facing the dust collecting chamber 11. Further, the rear surface of the dust collection case 3 is opened, and a filter 13 is detachably attached to the dust collection chamber 11 through the rear surface opening. Further, at the rear end of the dust collecting case 3, a clamp 15 biased by a spring 14 is pivotally attached to the upper part thereof, and a locking protrusion 16 is integrally provided vertically at the lower part.

On the other hand, at the front end of the main body case 2, an engagement groove 21 is formed in the upper part and an engagement receiving part 22 is formed in the lower part. In addition, since the clamp 15 and the locking protrusion 16 of the dust collecting case 3 are removably engaged, both the cases 2 and 3 are removably connected.

Further, a handle 23 is integrally formed at the center of the upper part of the main body case 2, and is inclined in a direction of rising forward. The main body case 2 is formed in a shape whose width becomes smaller toward the top. In particular, at the front end portion connected to the handle 23, the main body case 2 is connected to the handle 23.
The main body case 2 has a substantially triangular shape when viewed from the front with an upper vertex 3, and a relatively large space 24 is formed at the front end inside the main body case 2 when viewed from the front direction.

In addition, a communication port 2 is provided on the front side of the main body case 2.
5 is formed with an opening. Further, at the rear of both sides of the main body case 2, there are formed protrusions 26 which protrude inward and have a substantially triangular planar shape, and an exhaust hole 27 is formed through the protrusions 26. The exhaust hole 27 is open inside the main body case 2 on the front facing surface of the protrusion 26, and is open laterally outside the main body case 2. Further, the inner end of the exhaust hole 27 is covered with an exhaust filter 28.

31 is a rectifier plate molded from synthetic resin, etc.
The body case 2 is formed into a plate shape whose outer periphery is approximately equal to the inner periphery of the front end portion of the main body case 2 . and,
A plurality of flow ports 32 are formed at the peripheral edge of the current plate 31 . Further, on the rear surface of the current plate 31, a plurality of flow straightening ribs 33 forming a spiral groove having the flow port 32 at one end are formed protrudingly. A cylindrical holding portion 34 is formed to protrude rearward. Further, on both lower sides of the cylindrical holding portion 34 of the rectifying plate 31, holding ribs 35 in the form of elastically deformable projections having a frontal arc shape are formed spaced apart from each other and protrude rearward.
Further, the current plate 31 includes the cylindrical holding portion 3.
4 and a boss 3 located at an intermediate portion between both the holding ribs 35 and serving as a support protrusion below the center of the holding portion 34.
6 is formed to protrude rearward, and a cap-shaped buffer body 37 made of synthetic rubber or the like is fitted into the rear end of this boss 36.

The rectifying plate 31 is sandwiched between the case members 4 and 5, and is fitted and held at the front end of the main body case 2 constituted by the case members 4 and 5. Therefore, the cylindrical holding portion 34
is located approximately at the center of the space 24 at the front end inside the main body case 2 when viewed from the front.

A front end portion of a substantially cylindrical electric motor 41 is fitted into and supported by the cylindrical holding portion 34 of the rectifying plate 31 . A fan 43 is attached to the rotating shaft 42 of the electric motor 41 that projects forward of the rectifying plate 31.
is fixed to the communication port 25 on the front surface of the main body case 2 and covered with the rectifier plate 31 except for the front surface. The electric motor 41 and the fan 43 constitute an electric blower 44. Further, on the lower side of the rear end portion of the outer peripheral surface of the electric motor 41,
A buffer body 45 made of synthetic rubber or the like is attached. Note that this buffer body 45 may be formed into an annular shape and fitted to the rear end portion of the electric motor 41.

Further, on both the holding ribs 35, which are elastically deformable at least in the outer diameter direction (in the direction of the arrow in FIG. 3) of the rectifying plate 31, a cylindrical lead acid battery 46 is mounted on the lower side of the electric motor 41, spaced apart from side to side. It is held mated. The buffer bodies 37 and 45 are crimped onto both batteries 46, and the holding ribs 35 and the buffer bodies 37 and 45 hold the batteries 46 together.
6 is held elastically.

In this way, the electric motor 41 and both batteries 46 spaced apart from each other in the left and right directions are arranged so that their axial directions are parallel to each other, with the electric motor 41 at the upper apex when viewed from the front.
The batteries 46 on both sides are located between the batteries 46 on both sides separated from each other in the left and right, and are attached to the rear end of the boss 36 and the motor 41 via a buffer body 37. The holding rib 3 provided on the electric motor 41 and the rectifying plate 31 via the attached buffer body 45
5 and is held at three points, and is disposed in substantially contact with the inner circumferential surface of the main body case 2.

Furthermore, a circuit board 51 is supported at the front upper part of the main body case 2, and this circuit board 51
A switch 52 for controlling the electric motor 41 and the like are mounted on the motor.

Next, the operation of this embodiment will be explained.

When cleaning, hold the handle 23 and open the suction port 1.
2 to face the surface to be cleaned. In addition, the handle 23
The electric blower 44 is turned on and off by operating the switch 52 located at the front of the electric blower 44. The fan 4 is rotated by an electric motor 41 powered by a battery 46.
3 generates an air current, and this air current sucks dust from the suction port 12. The sucked dust is stored in the dust collection chamber 11 by the filter 13, while the airflow that has passed through the filter 13 passes through the communication port 25, the flow port 32 of the rectifying plate 31, and the rectifying rib 33, and then reaches the exhaust hole 27. more excreted.

At this time, the vibration of the electric motor 41 is particularly
It is absorbed by the buffer body 45 attached to the rear end of 1.

According to the configuration of the above embodiment, since the electric motor 41 and the battery 46 are directly attached to the rectifying plate 31, the electric motor 41
The support structure for 1 and the battery 46 becomes simple, and costs can be reduced.

In particular, the battery 46 is attached to the holding rib 3 of the rectifying plate 31.
Since the boss 36 and the electric motor 41 elastically hold the battery 46 through the shock absorbers 37 and 45, the batteries 46 can be reliably held even if the batteries 46 have dimensional variations. Furthermore, for example, the second shock absorber 45 also has the function of absorbing the vibration of the electric motor 41 as described above, and the first shock absorber 37 also has the function of absorbing the vibration of the electric motor 41 when the vacuum cleaner main body 1 is dropped. The contact 41a or the contact 46a of the battery 46 can have the function of absorbing shock, and the support structure for the motor 41 and the battery 46 is simple and the number of parts can be reduced.
It can be done more cheaply.

In addition, the electric motor 41 in the upper part and the two batteries 46 spaced apart laterally in the lower part are arranged in a substantially triangular shape and in almost contact with the inner peripheral surface of the vacuum cleaner body 1, so that the lower part of the electric motor 41 is connected to the batteries on both sides. 46, the height of the vacuum cleaner body 1 can be lowered to make it smaller and lighter, and it is easier to hold and can be stored on a bookshelf or the like. Note that since the electric motor 41 is located at the upper vertex and the heavier battery 46 is located at the bottom, the weight balance is also good.

Further, a handle 23 is provided on the upper part of the main body case 2, that is, above the electric motor 41, and the electric motor 4
1 is located almost at the center of the main body case 2, a relatively large space 24 is inevitably created at the front end of the main body case 2 connected to the handle 23, and this space 24 is difficult to see when viewed from the front. An electric motor 41 is located in the center of the vacuum cleaner 24, and by using the space 24 as a storage area for the fan 43, the fan 43 can be stored without increasing the size of the vacuum cleaner main body 1, and dead space can be eliminated. I can do it.

(Effects of the Invention) According to the present invention, the rectifier plate is installed inside the vacuum cleaner body by having the cylindrical holding portion hold the outer periphery of the front end of the electric motor that rotates the fan, and each holding rib holding the outer periphery of the battery. The electric motor and battery can be held and supported, and the rear end of the electric motor can be supported by both batteries via a buffer that is interposed on the lower outer periphery of the rear end of the motor, and the battery can be held and supported by the respective retaining ribs and support protrusions. It can be supported at three points: the electric motor via a buffer provided on the outer periphery, and the support protrusion via the buffer, and the motor and battery can be reliably held with a simple structure. In addition, the shock absorber can absorb vibrations of the electric motor during operation. Furthermore, the batteries are placed apart from each other at the bottom of the motor, allowing the bottom of the motor to be placed between the left and right batteries, allowing the height of the vacuum cleaner to be lowered, allowing for a simple structure and miniaturization of the vacuum cleaner itself. This improves portability and storage.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway horizontal sectional view showing an embodiment of the vacuum cleaner of the present invention, Fig. 2 is a partially cutaway longitudinal sectional view of the same, and Fig. 3 is a rectifier plate of the same as above. It is a perspective view of the vicinity. DESCRIPTION OF SYMBOLS 1... Vacuum cleaner main body, 11... Dust collection chamber, 23... Handle, 31... Rectifying plate, 34... Cylindrical holding part, 35... Holding rib, 36... Support protrusion, 37... Buffer, 41...
Electric motor, 43... Fan, 44... Electric blower, 45
...Buffer, 46...Battery.

Claims (1)

[Scope of Claims] 1. A vacuum cleaner main body that forms a dust collection chamber in the front part and has a handle, an electric blower that includes a fan built in the rear part of the vacuum cleaner main body and an electric motor that rotates the fan, and the vacuum cleaner A plurality of batteries are built into the main body and drive the electric motor, and a cylindrical holding part is provided in the center part and protrudes rearward, and a support protrusion is provided below the center of the cylindrical holding part and protrudes rearward. and a rectifying plate having holding ribs provided at a distance from each other on both sides below the cylindrical holding part is installed in the vacuum cleaner main body, and the cylindrical holding part holds the outer periphery of the front end of the electric motor. The outer periphery of the battery is held by each of the holding ribs and attached to the rectifier plate, a buffer is interposed between the supporting protrusion and the lower outer periphery of the rear end of the motor, and the motor has a front end shaped like the cylindrical shape. The battery is held at three points: the respective holding ribs, the electric motor via the buffer, and the protrusion via the buffer, with the rear end supported by both the batteries via the buffer. A vacuum cleaner characterized by being supported by. 2. The vacuum cleaner according to claim 1, wherein the handle is provided above the electric motor, and the electric motor is located approximately at the center of the cleaner body.