JPH08106890A - Holding device of battery pack - Google Patents

Abstract

PURPOSE: To attachably and detachably install a lock bar to a battery pack to keep its performance for a long period by holding the engagement of the lock bar to a holding groove by the energization of an elastic member, and releasing the engagement by a lock release lever. CONSTITUTION: When a battery pack 2 is installed to the cage of an electronic device, the locking part of the pack 2 is caught by the locking part of the cage to fit the pack into the cage, whereby the lock bar 3b integrated with the lock lever 3 of the pack 2 is fitted to the holding groove of the cage, and the both are integrally held by the energizing force of a spring. When the pack 2 is removed from the cage, a finger is inserted to the finger hole of the cage to push the lever 3, whereby the lock bar 3b is released from the holding groove of the cage, and the pack 2 can be removed from the cage. Since the lock lever 3 and spring separated from the pack 2 are used, the stable attaching and detaching operation of the pack can be kept over a long period without the fatigue of the parts or the separation of the connecting part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack used in an electronic device, and more particularly to a battery pack holding device.

[0002]

2. Description of the Related Art Conventionally, as a device for holding a battery pack mounted on an electronic device, there has been one as shown in FIGS. 7 (a) and 7 (b). FIG. 7A is a sectional view showing the structure and function of a conventional battery pack holding device.
(B) is a cross-sectional view showing a battery pack holding device improved from the above.

In FIG. 7 (a), 10 is a battery pack that houses a battery and supplies its power to an electronic device (not shown), 11 is an upper case of the battery pack 10, and 12 is a battery pack. The lower case 10 includes a locking portion 13 for mounting the battery pack 10 on the electronic device and holding the battery pack 10 at that position.
Reference numeral 4 denotes an operation portion for fitting or removing the locking portion 13 into a holding groove (not shown) of the electronic device when the battery pack 10 is attached to or attached to the electronic device, or when the battery pack 10 is detached, and 15 is a lower case. This is a U-shaped forming part in which a part of 12 is formed in a U-shape so as to have elasticity, and the locking part 13 is elastically engaged with the holding groove of the electronic device by the operation part 14.

By configuring the conventional battery pack 10 as described above, a holding device for the battery pack 10 is formed by the locking portion 13, the operating portion 14, and the U-shaped molding portion 15 to lock the electronic device. Lower function case 1
By operating the operation portion 14 by using the elasticity of the U-shaped forming portion 15 of No. 2, the locking portion 13 is inserted into or removed from the holding groove of the electronic device, and the battery pack 10 is attached to or detached from the electronic device. I am able to wear it freely.

On the other hand, in the battery pack holding device shown in FIG. 7B, 20 is the battery pack, 21 is the upper case of the battery pack, 22 is the lower case of the battery pack, and 23 is the same as the above. Locking part of battery pack holding device, 24
Is an operating portion connected to the lower case 22 via a leaf spring, 2
5 is formed in a U shape, one end of which is crimped and fixed between the upper case 21 and the lower case 22, and the locking portion 23 and the operating portion 24 are fixed to the other end, which has little elasticity due to fatigue and is elastic. It is a metal U-shaped leaf spring.

With this structure, the battery pack 20 forms a holding device for the battery pack 20 by the locking portion 23, the operating portion 24, and the U-shaped leaf spring 25, and in particular, the U-shaped leaf spring 25. Is used to provide a lock function for the electronic device, and the operating portion 24 is operated to fit or disengage the locking portion 23 into or from the holding groove of the electronic device. It is designed to be removable.

[0007]

However, in the conventional battery pack holding device as shown in FIG. 7 (a), a U-shaped molding part provided in a part of the lower case of the battery pack is used. Since the elasticity is a resin material, it is easily deformed by temperature, and cracks are easily generated due to mechanical fatigue due to bending, so that there is a problem that it becomes unusable.

Further, in the conventional battery pack holding device as shown in FIG. 7B, a U-shaped plate spring having an operation portion attached to a part thereof is fixed to the battery pack case. Therefore, there is a problem that it is not possible to reliably maintain the attachment of the battery pack to the housing due to the deformation of the U-shaped leaf spring, the change in the holding force for the U-shaped leaf spring due to the upper case and the lower case, and the like.

The present invention has been made in order to solve the above-mentioned conventional problems, and makes it possible to securely hold the battery pack in the housing of the electronic device and maintain its holding ability for a long period of time. An object of the present invention is to provide a battery pack holding device.

[0010]

In order to achieve the above-mentioned object, a battery pack holding device according to the present invention has a lock bar that engages with a holding groove of an electronic device to hold a battery pack and the lock bar. A lock lever formed integrally with the battery pack, which includes a lock release lever that is integrally formed and separates the lock bar from the engagement of the holding groove, and a lock lever formed separately from the lock lever to hold the electronic device It consists of an elastic member (biasing spring) that is installed so as to urge against the groove. The urging of the elastic member holds the engagement with the holding groove of the lock bar, and the lock release lever is opposed to the urging of the elastic member. It is characterized in that the lock bar is disengaged from the holding groove by moving in the direction.

Further, in order to achieve the above-mentioned object, the battery pack holding device according to the present invention is characterized in that it includes a rotary shaft formed integrally with the lock lever and rotatably holding the lock lever. Is.

Further, in order to achieve the above-mentioned object, the battery pack holding device according to the present invention is formed integrally with the lock lever and abuts against a part of the battery pack to restrict a part of the rotation of the lock lever. It is characterized by including a stopper adapted to do so.

In order to achieve the above object, the battery pack holding device according to the present invention is characterized in that it includes a bearing formed in a part of the battery pack for holding and positioning the rotating shaft of the lock lever. It is a thing.

Further, in the battery pack holding device according to the present invention, in order to achieve the above object, the elastic member is a metal biasing spring (any form such as a coil spring, a leaf spring, a torsion spring) or a rubber. Or a biasing spring made of an elastic member such as plastic, and after being mounted on the battery pack of the lock lever, the lock lever is mounted through an opening provided between the lock lever and the battery pack. Is.

[0015]

The holding device for a battery pack according to the present invention is constructed as described above, and in particular, it is provided with a separate lock lever separated from the battery pack, and further, an elastic member separate from the lock lever is used. By fixing the battery pack to the electronic device, the stable mounting of the battery pack to the electronic device does not occur, such as the fatigue of the parts and the disconnection of the connecting portion as in the conventional holding device described above. Can be reliably performed and maintained over a long period of time.

Further, the battery pack holding device according to the present invention is constructed as described above, and in particular, the lock lever is rotatably held by the rotary shaft formed integrally with the lock lever. You can comfortably use the lock lever,
It can be operated smoothly.

The battery pack holding device according to the present invention is constructed as described above, and in particular, the stopper integrally formed with the lock lever is brought into contact with a part of the battery pack to rotate the lock lever. By limiting the parts, it is possible to prevent the problem that the elastic member pops out due to the excessive opening of the lock lever, especially when the battery pack is removed from the electronic device, and facilitates the handling.

Further, the battery pack holding device according to the present invention is constructed as described above, and in particular, the bearing part is provided in a part of the battery pack, and the rotary shaft of the lock lever is held and positioned there. As a result, the lock bar can be accurately positioned in the holding groove of the electronic device for a long period of time.

Further, the battery pack holding device according to the present invention is configured as described above, and in particular, the elastic member is composed of a biasing spring of an elastic member such as metal, rubber, or plastic, and the lock lever battery pack. After the mounting, the elastic member is easily mounted and the manufacturing process of the battery pack can be simplified by mounting the elastic member through the opening provided between the lock lever and the battery pack.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings and FIGS. FIG. 1 is a diagram showing an external appearance of a battery pack equipped with a battery pack holding device according to an embodiment of the present invention and a mobile phone body to which the device is applied. FIG. 1A is a perspective view of the battery pack, and FIG. 1C is a rear front perspective view of the mobile phone main body, FIG. 2C is a rear rear perspective view of the mobile phone main body, and FIG. 2 shows a battery pack including the battery pack holding device shown in FIG. FIG. 3 is a configuration diagram showing the configuration when viewed from the front (front view), FIG. 3 is an external perspective view of the lock lever shown in FIG. 2, FIG. 4 is a sectional view taken along the line AA of the battery pack holding device portion shown in FIG. 2 is a sectional view taken along line BB of the holding device portion of the battery pack shown in FIG. 2, and FIG. 6 is a sectional view taken along line CC of the holding device portion of the battery pack shown in FIG.

First, referring to FIG. 1, the structure of a battery pack holding device according to an embodiment of the present invention will be described. FIG.
In FIG. 1, 1 is a housing of the mobile phone, 1a is a holding groove of the mobile phone that engages with and holds a lock bar (described later) of the battery pack, and 1b is a finger to put a finger when removing the lock bar from the holding groove. Holes 1c are locking parts of a mobile phone housing to be coupled with a battery pack, 2 are battery packs, 2a is an upper case of the battery pack, 2b is a lower case of the battery pack, 2c is a locking part 1c of the mobile phone housing. The locking portion 5 of the battery pack 2 is a battery pack holding device mounted on the front surface of the battery pack 2 (in the direction of the arrow in FIG. 1A), and 3 is a lock that is the main body of the battery pack holding device. It is a lever.

Now, with reference to FIG. 1, the operation of holding the battery pack by the battery pack holding device 5 in one embodiment of the present invention will be described. First, when the locking portion 2c of the battery pack 2 is hooked on the locking portion 1c of the housing 1 of the mobile phone and the battery pack 2 is fitted into the housing 1, the lock lever 3
A lock bar (which will be described later) integrated with is fitted into the holding groove 1a of the mobile phone, the battery pack 2 is fixed to the housing 1 of the mobile phone, and is integrally held. When removing the battery pack 2 from the housing 1, insert a finger through the finger hole 1b of the mobile phone housing 1 and push the lock lever 3 to release the lock bar from the holding groove 1a of the mobile phone and remove the battery pack from the mobile phone. You can remove it.

Next, with reference to FIGS. 2 and 3, the battery pack holding device 5 and the lock lever 3, which is the main body thereof, will be described in detail. 2 is a configuration diagram of the battery pack holding device as viewed from the direction of the arrow (front) of FIG. 1A, and FIG. 3 is a perspective view of the lock lever 3. In FIGS. 2 and 3, 3a is the rotating shaft of the lock lever 3, and 2d is the rotating shaft 3.
The bearing part of the lower case 2b that holds a is a lock bar that engages with the holding groove 1a of the housing 1, and 3c that is a lock release lever that unlocks the lock by the lock lever 3 that locks with the holding groove 1a of the housing 1. 3d is a stopper that limits the opening of the lock lever 3.

Strictly speaking, the battery pack holding device 5 contacts the lock lever 3, the holding groove 1a of the housing 1, the spring for pressing the lock lever 3 toward the holding groove 1a, and the stopper 3d. The upper part 2g of the upper case of the battery pack that stops further opening of the lock lever 3 and the bearing 2d that is a part of the lower case 2b of the battery pack (the details of each part will be described later). .

Next, referring again to FIGS. 2 and 3, the lock lever 3 is integrated (in particular, as apparent from FIG. 3) by the rotary shaft 3a, the lock bar 3b, the unlock lever 3c, and the stopper 3d. 2, the battery pack 2 is assembled and assembled in the manufacturing process with respect to the front surface of the battery pack 2. That is, the lock lever 3 is assembled so that the rotary shafts 3a formed at both ends thereof are fitted into the bearing portion 2d, and the lock lever 3 is rotatable about the shafts.

Since the stopper 3d is stopped by the stopper 3d coming into contact with the upper case front portion 2g of the upper case 2a, the range of its rotation is limited to that position to limit the excessive opening of the lock lever 3 ( Details will be described later with reference to FIG. 6.). Then, as described above, when the battery pack 2 is fitted into the housing 1, the lock bar 3b is fitted and held in the holding groove 1a ((c) of FIG. 1) by the biasing force of the spring described later, and the battery pack 2 is held. Is fixed to the housing 1.

Next, the operation of the lock lever 3 will be described with reference to FIG. Reference numeral 2a denotes an upper case of the battery pack 2 and 2b denotes a lower case of the battery pack 2, which serve as a reference when the battery pack 2 is fitted into the housing 1. Reference numeral 2d denotes a bearing portion formed on the lower case 2b which serves as a reference, and the rotation shaft 3a of the lock lever 3 is covered with a bearing lid 2e so that the lock lever 3 is rotatably held. The upper case 2a and the lower case 2b are integrally formed by welding at the welding portion D after the lock lever 3 is mounted. When the battery pack 2 is fitted into the housing 1, the lock lever 3 is rotated in the counterclockwise direction in FIG. 4 about the rotation shaft 3a by the spring, and the lock bar 3b is inserted into the holding groove 1a. The contact E makes contact and is stopped.

FIG. 5 is a cross-sectional view showing the structure of the biasing leaf spring by cutting the battery pack holding device along the line BB. In FIG. 5, reference numeral 4 is a biasing leaf spring for turning the lock lever 3 around the rotation shaft 3a (FIG. 4) in the direction of the arrow to push it open, and 2f and 3e are provided in the upper case 2a. A step B and a step A provided on the lock lever 3,
There is no hindrance to the insertion of the urging leaf spring 4, and the urging leaf spring 4 is provided so as to prevent it from coming off.

The biasing leaf spring 4 is inserted after the lock lever 3 is mounted on the battery pack 2 to facilitate the incorporation of the biasing leaf spring 4 in the manufacturing process and to simplify the manufacturing process. Then, as described above, the biasing leaf spring 4
The lock bar 3b is fitted into the holding groove 1a by the urging of the battery pack 1 and its movement is stopped by contacting the housing 1 at the contact point E (FIG. 4), and the battery pack 2 is fixed to the housing 1 without looseness. It

Next, the operation of the stopper 3d will be described with reference to FIG. As described above, 3d is a stopper formed at the tip of the lock bar 3b (of course, it may be the root of the lock bar 3b, but its position does not matter). The rotation of the lock lever 3 in the counterclockwise direction (as viewed in FIG. 6) (the direction in which the lock lever 3 is opened) is stopped by the stopper 3d coming into contact with the front portion 2g of the upper case, and the lock lever 3 is excessively opened. And the biasing leaf spring 4 is prevented from being flipped out, thereby facilitating the handling in use.

[0031]

The battery pack holding device according to the present invention comprises:
By providing an individual lock lever separated from the battery pack and further using an individual elastic member to fix the battery pack to the electronic device, fatigue of parts as in the above-mentioned conventional holding device is caused. It is possible to reliably perform and maintain the stable attachment of the battery pack to the electronic device for a long period of time without loosening without causing a problem such as detachment of the coupling portion.

Further, in the battery pack holding device according to the present invention, the lock lever is rotatably held by the rotary shaft formed integrally with the lock lever.
The lock lever can be smoothly operated for a long period of time without difficulty.

Further, in the battery pack holding device according to the present invention, the stopper integrally formed with the lock lever is brought into contact with a part of the battery pack to restrict a part of the rotation of the lock lever. In particular, when removing the battery pack from the electronic device, the problem that the elastic member pops out due to the excessive opening of the lock lever is prevented, and the handling is facilitated.

Further, in the battery pack holding device according to the present invention, the bearing part is provided in a part of the battery pack, and the rotary shaft of the lock lever is held and positioned therein, so that the lock bar of the electronic device is held. It enables accurate positioning for a long time with respect to the holding groove.

Further, in the battery pack holding device according to the present invention, the elastic member is composed of a biasing spring made of an elastic member such as metal, rubber or plastic, and after the lock lever is mounted on the battery pack, the lock lever and the battery pack are attached. By mounting through the opening provided between the elastic member and the elastic member, the elastic member can be easily mounted, and the manufacturing process of the battery pack can be simplified.

[Brief description of drawings]

FIG. 1 is a diagram showing an external appearance of a battery pack equipped with a battery pack holding device according to an embodiment of the present invention and a mobile phone body to which the device is applied, FIG. 1A is a perspective view of the battery pack, and FIG. Is a rear perspective view of the back of the mobile phone body. (C) is a rear perspective view of the back of the mobile phone body.

FIG. 2 is a configuration diagram showing the configuration of a battery pack including the battery pack holding device shown in FIG. 1 when viewed from the arrow direction (front side) of FIG.

3 is an external perspective view of the lock lever shown in FIG.

FIG. 4 is an AA of a holding device portion of the battery pack shown in FIG.
Line cross section

5 is a BB of a holding device portion of the battery pack shown in FIG.
Line cross section

FIG. 6 is a CC of the holding device portion of the battery pack shown in FIG.
Line cross section

FIG. 7 is a view showing a conventional battery pack holding device,
(A) is a sectional view showing an example of a conventional holding device. (B) is a sectional view showing an example of an improved holding device shown in (a) of FIG. 7.

[Explanation of symbols]

 1 Case 1a Holding groove 1b Finger hole 1c Locking part 2 Battery pack 2a Upper case 2b Lower case 2c Locking part 2d Bearing part 2e Bearing lid 2f Step B 2g Upper case front part 3 Lock lever 3a Rotating shaft 3b Lock bar 3c Lock release lever 3d Stopper 3e Step A 4 Energizing leaf spring 5 Battery pack holding device D Welding part E Contact

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Kobayashi 4-3-1, Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd.

Claims (5)

[Claims] 1. A lock bar that engages with a holding groove of an electronic device to hold a battery pack, and a lock release lever that is integrally formed with the lock bar and that separates the lock bar from the engagement of the holding groove. A lock lever formed separately from the battery pack, and an elastic member formed separately from the lock lever and attached to bias the lock lever to the holding groove of the electronic device. The lock member holds the engagement of the lock bar with the holding groove by urging the elastic member, and moves the lock release lever in the direction opposite to the urging direction to engage the lock bar with the holding groove. A battery pack holding device for detachably attaching a battery pack to an electronic device, characterized in that the battery pack is detached. 2. The battery pack holding device according to claim 1, wherein the lock lever includes a rotary shaft that is formed integrally with the lock lever and that rotatably holds the lock lever. 3. The lock lever includes a stopper formed integrally with the lock lever so as to abut against a part of the battery pack and restrict a part of rotation of the lock lever. Item 1. A battery pack holding device according to item 1 or 2. 4. The battery pack holding device according to claim 1, further comprising a bearing formed in a part of the battery pack for holding and positioning the rotating shaft. 5. The elastic member comprises an urging spring made of an elastic member such as metal, rubber, or plastic, and is provided between the lock lever and the battery pack after the lock lever is attached to the battery pack. 3. The device according to claim 1, wherein the device is mounted through the opened opening.
The battery pack holding device as described in 3 or 4.