JPH1125943A - Battery pack holding structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembling of a holding structure, and stably mount the holding structure onto an apparatus main body. SOLUTION: In this structure, a lock lever 3 energized in a locking direction by an energizing means 5 is provided on a battery pack 2 free in attaching and detaching to and from an apparatus main body, and the fitting portion 3c of the lock lever 3 is engaged with a holding slit 1c formed on an apparatus main body side so as to be freely engaged and disengaged so that the battery pack 2 is held in the apparatus main body. A rotating shaft 3a of the lock lever 3 is supported on the lower case 2b side of the battery pack 2, and the rotating shaft 3a is pressure contacted to the front portion inner face of the lower case 2b by the energizing means 5 so that no occurrence of the play of the lock lever 3 is allowed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for holding a battery pack which is used by being attached to a portable electronic device such as a portable telephone or a portable radio.

[0002]

2. Description of the Related Art Conventionally, a portable electronic device of this kind uses a battery pack containing a rechargeable battery or the like which can be used repeatedly by charging. A battery which is detachably attached to the main body of the device is used. As a pack holding structure, for example, a structure described in JP-A-8-106890 is known.

FIG. 8 to FIG. 14 show a battery pack holding structure disclosed in the above-mentioned publication, in which a rechargeable battery (not shown) is installed in an upper case a and a lower case b with respect to a housing A constituting an apparatus main body. The detached battery pack c is detachably attached.

To attach the battery pack c to the housing A, first, the locking portion d of the lower case b is attached to the locking portion d of the housing A.
By engaging the lock lever f provided on the lower case b with the holding groove g of the housing A in a state where
, The battery pack c can be held.

To remove the battery pack c from the housing A, insert a finger through the finger hole p of the housing A and remove the battery pack c from the holding groove g while pressing the lock lever f. Can be removed.

As shown in FIG. 11 to FIG. 13, the lock lever f is biased in the locking direction by a U-shaped leaf spring i at one end of which is supported by a rotation shaft h. The biasing force of the leaf spring i causes the fitting portion j of the lock lever f to engage with the holding groove g on the housing A side as shown in FIG.

When releasing the lock lever f, the housing A
By inserting a finger through the finger hole p and rotating the lock lever f in the unlocking direction against the leaf spring i, the fitting portion j of the lock lever f is disengaged from the holding groove g. Can be removed from the housing A and the lock lever f
Is provided with a stopper k. When the stopper k contacts the front portion of the upper case a, the lock lever f is not excessively opened by the urging force of the leaf spring i.

[0008]

However, in the conventional battery pack holding structure described above, the lower shaft b of the lock lever f is fitted to the substantially U-shaped bearing m provided on the lower case b. The upper case a is fitted to the case b, and the opening of the bearing m is closed by the front bearing n of the upper case a, so that the rotating shaft h does not come out of the bearing m.

For this reason, due to a manufacturing error of the bearings m and n of the upper case a and the lower case b and a variation in assembling the upper case a and the lower case b, the rotation shaft h in the bearings m and n is reduced. When the lock lever f is rattled due to the backlash and the battery pack c is mounted on the housing A,
There were problems such as the holding of the battery pack c becoming unstable and the in-use battery pack c being detached from the housing A and falling off.

In the conventional battery pack holding structure, when assembling the lock lever f, the stoppers k protruding from both sides of the lock lever f are inserted from below the upper case a, and then the rotating shaft h is moved to the lower case. In this case, it is necessary to insert the lock lever f into the upper case a while deforming the front bearing n of the upper case a, so that the assembling work is troublesome. At the same time, the front bearing portion n during assembly may be deformed,
As a result, there is a problem that the play between the bearings m and n and the rotating shaft h becomes more unstable. SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a battery pack holding structure that can be easily assembled and can be stably mounted on an apparatus body.

[0011]

According to the present invention, in order to achieve the above object, the lock lever provided on the battery pack is rotatably supported on the lower case side of the battery pack so that the lock lever can be rotated. The rotating shaft is pressed against the inner surface of the front part of the lower case by urging means that urges in the locking direction.The lock lever does not rattle even if there is a manufacturing error or variation during assembly. The battery pack can be held in a stable state by the device body.

[0012]

According to the first aspect of the present invention, a lock lever which is urged in a locking direction by an urging means is provided on a battery pack which is detachable from an apparatus main body. The engagement portion of the lock lever is removably engaged with the holding groove formed on the device main body side so that the battery pack is held on the device main body. Is rotatably supported.

With the above structure, even if there is a manufacturing error in the upper case or the lower case constituting the battery pack or there is a variation during assembly, the rotating shaft is pressed against the front inner surface of the lower case by the urging means, Since the lock lever does not rattle, the battery pack can be stably mounted on the device body.

According to a second aspect of the present invention, a bearing portion for supporting a rotation shaft of a lock lever in a vertical direction and a forward direction is provided on a lower case side of a battery pack, and is integrally fitted to the lower case. The upper case is provided with bearing portions for supporting the rotating shaft from behind.

With the above configuration, when assembling the battery pack, the upper case is fitted to the lower case in a state where the rotation shaft of the lock lever is fitted to the bearing portion of the lower case, and integrated by means such as adhesion or welding. Thus, the mounting of the lock lever is completed, so that the assembling work can be easily performed in a short time, and the movement of the rotating shaft is regulated in four directions, so that the lock lever can be accurately positioned.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings shown in FIGS.

FIG. 1 is an exploded perspective view showing a state in which the battery pack is removed from the apparatus main body, FIG. 2 is a perspective view of the apparatus main body, FIG. 3 is a front view of the lock lever side of the battery pack, and FIG.
FIG. 5 is a cross-sectional view along the line YY in FIG. 3, FIG. 6 is a cross-sectional view along the line ZZ in FIG. 3, and FIG. 7 is an exploded perspective view of the holding structure.

In these figures, reference numeral 1 denotes an apparatus main body, which has a mounting portion 1a for a battery pack 2 on a back surface thereof, and a lower case 2b for locking the battery pack 2 at a corner on one end side of the mounting portion 1a. The stop part 1b is protrudingly provided.

The battery pack 2 has a structure in which a rechargeable battery (not shown) is mounted between an upper case 2a and a lower case 2b, and can be detachably mounted on the mounting portion 1a of the device body 1 from the lower case 2b side. Battery pack 2
Is provided with a lock lever 3 at one end thereof.

The lock lever 3 is, as shown in FIG.
It is formed in a substantially inverted L-shape, and has a rotating shaft 3a protruding on both sides of a lower end, and engaging and disengaging a holding groove 1c formed on the device body 1 side on both sides of a bent portion 3b on the upper end. A fitting portion 3c that fits freely and a stopper 3d protrude from each other.

A bearing 4 is formed on the upper case 2a and the lower case 2b of the battery pack 2 to which the lock lever 3 is attached, as shown in FIG.

The bearing portion 4 has a bearing top portion 4a, a bearing front portion 4b, and a bearing bottom portion 4c formed on the lower case 2b side. As shown in FIG. 6, the rotary shaft 3a is supported in three directions: up, down, and forward.

The upper case 2a has a bearing rear portion 4d.
Is formed in a substantially comb shape, the rear of the rotating shaft 3a is supported by the bearing rear portion 4d, and a substantially U-shaped leaf spring 5 is interposed between the lock lever 3 and the bearing rear portion 4d. The upper portion of the lock lever 3 is urged forward by the leaf spring 5, and when the battery pack 2 is removed from the device main body 1, the stopper 3c of the lock lever 3 comes into contact with the front portion of the lower case 2b from the inside. The lock lever 3 is prevented from opening excessively.

In FIG. 7, reference numeral 4e denotes a retaining projection for preventing the leaf spring 5 from coming off.

In FIG. 1 and FIG.
It is a finger hole to insert a finger when removing.

Next, the operation of the battery pack holding structure constructed as described above will be described. First, when assembling the battery pack 2, first, between the bearing top portion 4a of the lower case 2b, the bearing front portion 4b and the bearing bottom portion 4c. Then, the rotating shaft 3a of the lock lever 3 is fitted through the rear opening.

At this time, since it is not necessary to perform an operation of deforming and assembling a part of the lower case 2b, the lower case 2b can be easily assembled.

Next, the upper case 2a is placed on the lower case 2b from above.
And the lower case 2b and the upper case 2a are integrated by means such as adhesion or welding. Then, while the open end of the leaf spring 5 is pressed and shrunk with a finger or the like, the lock lever 3 and the bearing rear portion of the upper case 2a are compressed. 4d, the leaf spring 5 is inserted as shown in FIG. 4. After the leaf spring 5 is inserted, the lock lever 3 is pressed forward by the urging force of the leaf spring 5, and the rotating shaft 3a is moved. The lower case 2 is always pressed against the inner surface of the bearing front part 4b.
b, the mounting position of the lock lever 3 is always constant, and is not affected by manufacturing errors of the bearing portion 4 or variations at the time of assembly.

When the battery pack 2 assembled as described above is mounted on the main body 1, first, the lower case 2b of the battery pack 2 is engaged with the locking portion 1b of the main body 1, and the lock lever 3 The fitting portion 3c is fitted into the holding groove 1c of the device main body.

At this time, the rotating shaft 3a of the lock lever 3 provided on the battery pack 2 is constantly pressed against the inner surface of the bearing front portion 4b provided on the lower case 2b side by the urging force of the leaf spring 5, so that play is caused. Since it does not occur, the device body 1
Battery pack 2 can be held in a stable state, and there is no fear that the battery pack 2 will fall off from the device body 1 during use.

On the other hand, when removing the battery pack 2 for charging or the like, insert a finger through the finger hole 1d of the device body 1,
The lock lever 3 is rotated against the leaf spring 5, and the fitting portion 3c
Can be easily removed by removing from the holding groove 1c.

[0032]

As described above in detail, according to the present invention, a bearing for supporting the rotating shaft of the lock lever is provided on the lower case side of the battery pack, and the rotating shaft is urged by a leaf spring for urging the lock lever. Is pressed against the inner surface of the front part of the bearing.
Even if there is variation during assembly, no play is produced on the lock lever.

Thus, the battery pack can be stably mounted on the main body of the apparatus, and there is no fear that the battery pack is detached from the main body of the apparatus during use and falls off.

When assembling the battery pack, the upper case is fitted to the lower case with the rotation shaft of the lock lever fitted to the bearing formed in the lower case from the rear. It is not necessary to perform an operation of assembling the lock lever by partially deforming the part, so that the assembling operation is easy and the assembling can be performed in a short time, so that the assembling cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an electronic device employing a battery pack holding structure according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a device main body of an electronic device employing the battery pack holding structure according to the embodiment of the present invention;

FIG. 3 is a front view showing a battery pack holding structure according to the embodiment of the present invention;

FIG. 4 is a sectional view taken along line XX of FIG. 3;

FIG. 5 is a sectional view taken along the line YY of FIG. 3;

FIG. 6 is a sectional view taken along the line ZZ in FIG. 3;

FIG. 7 is an exploded perspective view showing a battery pack holding structure according to the embodiment of the present invention;

FIG. 8 is an exploded perspective view of an electronic device employing a conventional battery pack holding structure.

FIG. 9 is a perspective view showing a device main body of an electronic device employing a conventional battery pack holding structure.

FIG. 10 is a front view showing a conventional battery pack holding structure.

11 is a sectional view taken along the line XX in FIG.

FIG. 12 is a sectional view taken along the line YY in FIG. 10;

13 is a sectional view taken along the line ZZ in FIG.

FIG. 14 is an exploded perspective view showing a conventional battery pack holding structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 1a Mounting part 1b Locking part 1c Holding groove 1d Finger hole 2 Battery pack 2a Upper case 2b Lower case 3 Lock lever 3a Rotating shaft 3b Bending part 3c Fitting part 3d Stopper 4 Bearing part 4a Bearing top part 4b Before bearing Part 4c Bearing bottom 4d Bearing rear 4e Retaining projection 5 Leaf spring (biasing means)

Claims (2)

[Claims] 1. A battery pack detachably mounted on a device main body, wherein a lock lever urged in a locking direction by urging means is provided, and a fitting portion of the lock lever is formed on the device main body side. A battery pack characterized in that a rotation axis of a lock lever is rotatably supported on a lower case side of a battery pack which is adapted to hold a battery pack in a device body by being detachably engaged with a holding groove. Holding structure. 2. A bearing portion for supporting a rotating shaft of a lock lever in a vertical direction and a front direction on a lower case side of a battery pack, and the rotating shaft on an upper case fitted and integrated with the lower case. 2. The battery pack holding structure according to claim 1, further comprising a bearing portion supported from the rear.