HK1116927B - Battery holder for keeping button shaped or coin shaped small battery - Google Patents

Description

Battery holder for holding small battery in button or coin shape

Technical Field

The present invention relates to a battery holder used for small-sized electric equipment such as a mobile phone.

Background

In general, small-sized electric devices such as cellular phones use a so-called button-shaped or coin-shaped small-sized lithium battery held by a battery holder mounted on a circuit board or the like in a device body.

As a conventional battery holder, a battery holder shown in fig. 7 is known, which includes: a holder body 2 disposed on one end surface side of the battery 1, a plurality of battery holding pieces 3 for holding the battery 1 on the holder body 2, and a pair of terminals 4 in contact with the electrodes of the battery 1, and a chucking portion 3a provided at the tip of each battery holding piece 3 chucks the other end surface of the battery 1 to hold the battery 1 (see, for example, japanese patent laid-open No. 2003-151521).

However, in the above-described conventional example, when the holder body 2 is swung by a drop impact of the device body or the like, the battery 1 moves in the holder body 2 and presses the battery holding piece 3 to the outside of the holder body 2 as shown by the broken line in fig. 8. In this case, as shown by the chain line in fig. 8, the battery holding piece 3 is likely to be deformed greatly outside the holder body 2. At this time, if the battery holding piece 3 is deformed by the displacement amount X, the battery holding piece 3 may be plastically deformed to disable holding of the battery 1, and the battery 1 may be detached from the holder body 2.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object thereof is to provide a battery holder capable of preventing plastic deformation of a battery holding piece.

In order to achieve the above object, a battery holder according to the present invention comprises: a holder body disposed on one end surface side of the battery; a terminal in contact with an electrode of the battery; a plurality of battery holding pieces which are formed by extending from the holder body to the other end face side of the battery and are arranged at intervals along the circumferential direction of the holder body, and hold the battery on the holder body; a clamping part which is arranged at the front end of each battery holding piece and clamps the other end surface of the battery to hold the battery; and a regulating portion provided outside each of the battery holding pieces and regulating an outward displacement amount of each of the battery holding pieces within a predetermined range.

In this way, since the amount of displacement of each battery holding piece toward the outside of the holder body can be limited within a predetermined range, the amount of displacement of each battery holding piece toward the outside of the holder body is reduced. Therefore, plastic deformation of each battery holding piece can be reliably prevented, and even when the holder body swings, the battery can be reliably prevented from being detached from the holder body.

Drawings

Fig. 1 is an exploded perspective view of a battery holder.

Fig. 2 is a plan view of the battery holder.

Fig. 3 is a bottom view of the battery holder.

Fig. 4 is a side view of the battery holder taken along line a-a.

Fig. 5 is a side sectional view of the battery holder taken along line B-B.

Fig. 6 is an enlarged view of a main part showing the operation of the battery holding piece.

Fig. 7 is a plan view showing a battery holder according to a conventional example.

Fig. 8 is an enlarged view of a main part showing the operation of the battery holding piece of the battery holder according to the conventional example.

Detailed Description

Fig. 1 to 6 show an embodiment of the present invention, fig. 1 is an exploded perspective view of a battery holder, fig. 2 is a plan view of the battery holder, fig. 3 is a bottom view of the battery holder, fig. 4 is a side view of the battery holder taken along line a-a, fig. 5 is a side cross-sectional view of the battery holder taken along line B-B, and fig. 6 is an enlarged view of a main portion showing the operation of a battery holding piece.

The battery holder has: an insulating holder body 10 disposed on one end surface side of the battery 1; a total of 4 battery holding pieces 11 for holding the battery 1 on the holder body 10; a 1 st terminal 12 in contact with the positive electrode 1a of the battery 1; a 2 nd terminal 13 in contact with the negative electrode 1b of the battery 1; and a pair of terminal mounting portions 14 to which the respective terminals 12 and 13 are mounted.

The holder body 10 is made of synthetic resin, and the bottom surface side thereof is formed to a size approximately equal to the outer diameter of the battery 1. In addition, the holder body 10 is provided with a slit 10a into which the 1 st terminal 12 is inserted.

The battery holding pieces 11 are made of synthetic resin formed integrally with the holder body 10, and are arranged at equal intervals from each other in the circumferential direction of the holder body 10. Each battery holding piece 11 extends upward from the bottom surface of the holder body 10 and is formed to be elastically deformable in the radial direction of the battery 1. The battery holding pieces 11 are provided at their upper ends with chucking claws 11a for chucking the battery 1, and the upper end surfaces of the chucking claws 11a are provided at portions thereof with inclined surfaces 11b inclined downward toward the center of the holder body 10.

The 1 st terminal 12 is made of a conductive metal sheet, and the middle portion thereof is bent in an inverted U shape and attached to one terminal attachment portion 14. One end side of the 1 st terminal 12 extends to the outside of the holder body 10, and constitutes a connection portion 12a with a circuit board or the like. The other end of the 1 st terminal 12 is formed with a contact portion 12b that contacts the peripheral surface side of the positive electrode 1a of the battery 1, and is formed in a substantially U-shape so as to be elastically pressed against the battery 1. Further, a pair of regulating pieces 12c each extending in the circumferential direction of the holder body 10 are provided integrally with the 1 st terminal 12 on both ends in the width direction of the intermediate portion of the 1 st terminal 12. When the 1 st terminal 12 is mounted on one terminal mounting portion 14, as shown in fig. 2, the regulating pieces 12c are positioned outside the battery holding pieces 11 arranged on the side of the one terminal mounting portion 14, and the elastic deformation of the battery holding pieces 11 toward the outside is regulated within a predetermined range.

The 2 nd terminal 13 is made of a conductive metal sheet, and is bent in an inverted U-shape at its middle portion and attached to the other terminal attachment portion 14. One end side of the 2 nd terminal 13 extends to the outside of the holder body 10, and constitutes a connection portion 13a with a circuit board or the like. The other end of the 2 nd terminal 13 extends toward the inside of the holder body 10, and forms a contact portion 13b that contacts the negative electrode 1b of the battery 1. In this case, the contact portion 13b is inserted into the slit 10a of the holder body 10, and the distal end side is slightly bent upward, so that it is elastically pressed against the battery 1. Further, a pair of regulating pieces 13c each extending in the circumferential direction of the holder body 10 are provided integrally with the 2 nd terminal 13 on both ends in the width direction of the intermediate portion of the 2 nd terminal 13. When the 2 nd terminal 13 is mounted on the other terminal mounting portion 14, as shown in fig. 2, the regulating pieces 13c are positioned outside the battery holding pieces 11 arranged on the other terminal mounting portion 14 side, and the elastic deformation of the battery holding pieces 11 to the outside is regulated within a predetermined range.

Each terminal mounting portion 14 is made of synthetic resin integrally formed with the holder body 10, and is composed of an inner holding piece 14a and an outer holding piece 14b that sandwich the terminals 12 (13). The pair of the clamping pieces 14a and 14b are provided at intervals in the width direction, the terminal 12(13) is held by the clamping pieces 14a and 14b, and the connecting portion 12a (13a), the contact portion 12b (13b), and the regulating piece 12c (13c) of the terminal 12(13) are respectively extended from between the clamping pieces 14a and 14b and from between the clamping pieces 14a and 14 b.

The battery holder configured as described above is used for small-sized electric devices such as cellular phones, and is mounted on a circuit board or the like in a device body. Then, when the battery 1 is pushed into the holder body 10 as shown in fig. 5, the inclined surfaces 11b of the battery holding pieces 11 push the battery 1 outward, and the battery 1 is inserted between the battery holding pieces 11. At this time, the upper surface of the battery 1 is gripped by the gripping claws 11a of the battery holding pieces 11, and the battery 1 is held by the holder body 10 by the battery holding pieces 11. In this way, the contact portion 12b of the 1 st terminal 12 is in electrical contact with the circumferential surface side of the positive electrode 1a of the battery 1, and the contact portion 13b of the 2 nd terminal 13 is in electrical contact with the negative electrode 1 b.

At this time, when the holder body 10 is swung by a drop impact of the device body or the like, the batteries 1 held by the battery holding pieces 11 move in the holder body 10 and press the battery holding pieces 11 as shown in fig. 6. Then, the battery holding piece 11 pressed by the battery 1 is elastically deformed outward of the holder body 10, but since the regulating pieces 12c (13c) are provided outward of the battery holding piece 11, the elastic deformation of the battery holding piece 11 is regulated by the regulating pieces 12c (13 c). The displacement amount of the battery holding piece 11 at this time is X1, and is smaller than the displacement amount (X) of the conventional example shown in fig. 8.

As described above, according to the battery holder of the present embodiment, since the pair of regulating pieces 12c and 13c provided outside the respective battery holding pieces 11 and regulating the amount of displacement of the respective battery holding pieces 11 to the outside within the predetermined range (X1) are provided, the amount of displacement of the respective battery holding pieces 11 to the outside of the holder body 10 can be reduced, and plastic deformation of the respective battery holding pieces 11 can be reliably prevented. Therefore, even when the holder body 10 swings, the battery 1 can be reliably prevented from being detached from the holder body 10.

Further, since the regulating pieces 12c and 13c are formed to extend in the circumferential direction of the holder body 10, the deformation of the battery holding pieces 11 in the radial direction of the battery 1 can be reliably limited to the predetermined range (X1).

Furthermore, since the regulating pieces 12c and 13c are provided integrally with the terminals 12 and 13, respectively, the pressing strength of the regulating pieces 12c and 13c can be increased, and the regulating pieces 12c and 13c can be reliably prevented from being damaged by being pressed from the battery holding pieces 11.

Further, since the regulating pieces 12c and 13c are provided on both ends in the width direction of the terminals 12 and 13, respectively, the elastic deformation of the battery holding piece 11 disposed close to both ends in the width direction of the terminals 12 and 13 can be regulated within a predetermined range (X1).

In the above embodiment, the regulating pieces 12c and 13c are provided for the terminals 12 and 13, but the regulating portion may be provided for the holder body 10.

In the above embodiment, the restricting pieces 12c and 13c are provided on both ends in the width direction of the terminals 12 and 13, respectively, but the restricting pieces 12c and 13c may be provided on one end in the width direction of the terminals 12 and 13 so as to face each other with the holder body 10 interposed therebetween.

Claims (7)

1. A battery holder for holding a button-shaped or coin-shaped small battery is characterized by having a holder body disposed on one end face side of the battery;

a terminal in contact with an electrode of the battery;

a plurality of battery holding pieces which are formed by extending from the holder body to the other end face side of the battery and are arranged at intervals along the circumferential direction of the holder body, and hold the battery on the holder body;

a clamping part which is arranged at the front end of each battery holding piece and clamps the other end surface of the battery to hold the battery; and

and a limiting part which is arranged at the outer side of each battery holding piece and limits the outward displacement of each battery holding piece within a specified range.

2. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 1,

the restricting portion is formed so as to extend in the circumferential direction of the holder body.

3. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 1,

the restricting portion is provided integrally with the terminal.

4. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 2,

the restricting portion is provided integrally with the terminal.

5. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 1,

the restricting portions are provided on both ends in the width direction of the terminal, respectively.

6. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 2,

the restricting portions are provided on both ends in the width direction of the terminal, respectively.

7. The battery holder for holding a button-shaped or coin-shaped small-sized battery according to claim 3,

the restricting portions are provided on both ends in the width direction of the terminal, respectively.