JPH05266869A - Battery pack mounting and demounting structure - Google Patents

Abstract

PURPOSE:To make a device compact, and reduce the looseness of a battery pack by providing the battery pack in such a way allowing mounting and demounting on and from a battery housing section so recessed as to have an approximately opposite shape to the battery pack in a device body. CONSTITUTION:A recessed battery housing section 23 is so formed on a device body 21 as to be open to one edge thereof, and a battery pack 22 is mounted on the section 23 in such a way as freely detachable. Also, a projection member 24 is so laid as to project into the section 23, in the vicinity of the deep end of one lengthwise inner side 23a of the section 23, and energized and pressed with a coil spring 25, thereby being buried. A locking claw 26 is slidably fitted in the vicinity of the open end of the lengthwise other inner side 23b of the section 23. According to this construction, the battery pack 22 can be mounted or demounted without being turned, while being inserted or pulled along the section 23 of a body 1. Useless space can be thereby eliminated. Consequently, the device can be made compact, compared with a conventional structure, and the looseness of the battery pack 22 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack attachment / detachment structure used in a portable radio apparatus or the like. Generally, a portable wireless device is a battery pack as a power source.
The battery pack has a structure that can be attached to and detached from the apparatus body for charging or replacement. Since the attachment and detachment is frequently performed, it is of course preferable that the operation can be performed by a simple operation.

On the other hand, this type of device is required to be small in size because it is portable, and there is no rattling (the vibration of the device causes the device body and the battery pack to behave differently) during carrying. As described above, the battery pack needs to be securely attached to the apparatus body.

[0003]

2. Description of the Related Art FIGS. 4 and 5 are explanatory views of a conventional battery pack attaching / detaching structure, FIG. 4 is a sectional view, and FIG. 5 is a perspective view.

In FIG. 1, reference numeral 1 is a device body such as a wireless device, and 2 is a battery pack for supplying power to the device body 1. The apparatus main body 1 is provided with a recessed battery housing portion 3 that opens to one end face thereof, and the battery pack 2 is detachably mounted in the battery housing portion 3.

One inner side surface 3 of the battery accommodating portion 3 in the longitudinal direction.
A projecting protrusion 4 is integrally formed on the apparatus main body 1 at the opening side end of a, and a lock claw 5 is slidably provided near the opening side end of the other inner side surface 3b. ..
The lock claw 5 is urged by a coil spring 6 so that its tip projects into the battery accommodating portion 3.

In the vicinity of the other inner side surface 3b of the bottom surface 3c of the battery accommodating portion 3, a plurality of connection pins 7 as power supplied terminals are arranged toward the opening side. The connection pin 7 is biased by a coil spring 8 so that a part thereof projects into the battery housing portion 3, and the connection pin 7 is buried by being pressed from the opening side.

A protrusion engaging portion 9 and a pawl engaging portion 10 are provided at positions corresponding to the protruding portion 4 and the lock pawl 5 of the battery pack 2, respectively, and a power feeding terminal is provided at a position corresponding to the connection pin 7. Is provided with a plurality of connection pads 11. The side surface 2b of the battery pack 2 on the side of the claw engaging portion 10 has a substantially arc shape or a slope shape so as not to interfere with attachment and detachment.

To mount the battery pack 2 on the device body 1, however, the battery pack 2 is obliquely inserted into the device body 1 from the side surface 2a side of the battery pack 2 on the side of the protrusion engaging portion 9 to engage the protrusion 4 with the protrusion. The portion 9 is engaged, the battery pack 2 is rotated to the device body 1 side around this portion, and the side surface 2b side of the battery pack 2 is pressed against the biasing force of the connection pin 7 (coil spring 8).

As a result, the connection pin 7 is buried, the lock claw 5 is engaged with the claw engaging portion 10, and the battery pack 2 is attached to the apparatus body 1. The electrical connection between the battery pack 2 and the device body 1 is made by contact between the connection pins 7 and the connection pads 11.

[0010]

However, as shown in FIG. 6, the conventional structure is a structure in which the battery pack 2 is rotated around the engaging position A between the protrusion and the protrusion engaging portion to be attached and detached. When the battery pack 2 rotates, it is necessary to set the battery accommodating portion 3 to have a size larger than the size corresponding to the locus drawn by the portion B farthest from the rotation center A, and the portion indicated by C in the figure becomes wasted space, There was a problem that it was an obstacle to the miniaturization of the device. In particular, the greater the thickness D of the battery pack 2, the more serious this problem.

Further, due to the existence of such a space C and the like,
There is also a problem that the battery pack 2 is loose when the battery pack 2 is attached. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery pack attachment / detachment structure that reduces the size of the device and reduces rattling.

[0012]

In order to solve the above-mentioned problems, a battery pack is detachably attached to the battery accommodating portion of an apparatus main body having a recessed battery accommodating portion having a shape roughly facing the battery pack. The battery pack attachment / detachment structure as described above is configured as follows.

That is, a projecting convex portion biased so as to be able to be buried near one end of the inner side surface of the battery accommodating portion of the main body of the apparatus can be slid to the vicinity of the end portion on the opening side of the other inner surface. Each of the battery packs is provided with a lock claw protruding in the direction of, and a claw engaging part that engages with the convex part and the claw engaging part that engages with the tip of the lock claw when the battery pack is mounted.

[0014]

According to the structure of the present invention, as shown in FIG. 3, the battery pack 2 can be inserted or removed along the battery accommodating portion 3 of the apparatus main body 1 without being rotated, so that the structure shown in FIG. As shown, the useless space C can be eliminated, and thus the device can be made smaller than the conventional structure.

Further, since the useless space C is unnecessary, the gap between the battery pack 2 and the battery accommodating portion 3 of the apparatus main body 1 can be made extremely small, and the rattling of the battery pack 2 can be reduced. ..

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are explanatory views of a battery pack attaching / detaching structure of an embodiment of the present invention, FIG. 1 is a sectional view, and FIG. 2 is a perspective view.

In the figure, reference numeral 21 is a device body such as a wireless device, and 22 is a battery pack as a power source of the device body 21. The apparatus main body 21 is provided with a recessed battery accommodating portion 23 that opens to one end surface thereof, and the battery pack 22 is detachably attached to the battery accommodating portion 23.

A convex member 24 is provided in the vicinity of the rear end of one inner side surface 23a in the longitudinal direction of the battery accommodating portion 23 so as to project into the battery accommodating portion 23.
The coil spring is biased by the coil spring 25 and is buried by being pressed.

A lock claw 26 is slidably provided near the opening side end of the other inner side surface 23b in the longitudinal direction of the battery accommodating portion 23. The lock claw 26 is a coil spring 27.
Is urged so that its tip projects into the battery housing portion 23.

In the vicinity of the other inner side surface 23b of the bottom surface 23c of the battery accommodating portion 23, a plurality of connection pins 28 as power supplied terminals are arranged toward the opening side. The connection pin 28 has a coil spring 29, and a part of the connection pin 28 is in the battery housing portion 2.
The connecting pin 2 is urged to project into
8 is buried by being pressed from the opening side.

Further, as shown in FIG. 2, a concave rail 30 is provided on one inner side surface 23a of the battery accommodating portion 23 in the insertion / removal direction of the battery pack 22, and the other inner side surface 23b. Similarly, a pair of concave rails 31 and 31 are provided across the battery pack 22 insertion / removal direction.

On a side surface corresponding to one inner side surface 23a of the battery accommodating portion 23 of the battery pack 22, there are provided a concave portion 32 with which the convex member 24 can be engaged and a convex rail 33 slidably fitted into the concave rail 30. Has been.

On the side surface corresponding to the other inner side surface 23b of the battery accommodating portion 23 of the battery pack 22, the claw engaging portion 34 with which the tip of the lock claw 26 can be engaged and the concave rails 31, 31 are slidably fitted. A pair of convex rails 35, 35 that fit together are provided.

A plurality of connection pads 36 as power supply terminals are provided at positions corresponding to the connection pins 28 protruding into the battery housing portion 23 of the battery pack 22. However, the mounting of the battery pack 22 on the device body 21 is performed by the battery pack 2
The two convex rails 33, 35, 35 are inserted along the corresponding concave rails 30, 31, 31 of the battery accommodating portion 23 to connect the battery pack 22 to the connection pin 28 (coil spring 29) and the convex member 24 (coil spring 25). By pressing against the biasing force, the convex member 24 is engaged with the concave portion 32, and the tip of the lock pawl 26 is engaged with the pawl engaging portion 34.

The electrical connection between the battery pack 22 and the apparatus main body 21 is made by pressing the connection pins 28 against the connection pads 36. To remove the battery pack 22 from the device body 21, slide the lock claw 26 in the direction opposite to the urging direction of the coil spring 27, and the connecting pin 28 (coil spring 2
Due to the biasing force of 9), the engagement between the convex member 24 and the concave portion 32 is released (the convex member 24 is buried), whereby the battery pack 2
2 is extruded.

According to the present embodiment, as described above, the battery pack 22 is mounted on the main body 21 of the apparatus by pressing the battery pack 22 evenly, and the lock claw 26 is slid in this state to move the battery pack 22 to the apparatus. Since the battery pack 22 is pushed out from the main body 21, it is easy to attach and detach the battery pack 22 to and from the device main body 21.

Further, since the battery pack 22 is attached / detached without rotating, the useless space is not required as in the conventional case, and the size of the device can be reduced.

Since no useless space is required, the gap between the battery pack 22 and the battery accommodating portion 23 can be made extremely small, and the convex rails 33 and 35 of the battery pack 22 correspond to the battery accommodating portion 23. Concave rail 30,
Since it is fitted in 31, the rattling of the battery pack 22 is extremely small.

[0029]

As described above in detail, by adopting the battery pack attaching / detaching structure according to the present invention, the device can be made compact and the rattling of the battery pack can be reduced. ..

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of an embodiment of the present invention.

FIG. 3 is an illustration of the relativity of the structure of the present invention compared to the prior art.

FIG. 4 is a cross-sectional view showing a configuration of a conventional technique.

FIG. 5 is a perspective view showing a configuration of a conventional technique.

FIG. 6 is an explanatory diagram of a problem of the conventional technique.

[Explanation of symbols]

 21 Device Main Body 22 Battery Pack 23 Battery Housing 24 Convex Member (Convex) 26 Lock Claw 28 Connection Pin 32 Recess 34 Claw Engagement Part 36 Connection Pad

Claims (4)

[Claims] 1. A battery pack (22) is attachable to and detachable from the battery housing part (23) of an apparatus main body (21) having a recessed battery housing part (23) having a shape substantially opposite to the battery pack (22). In the battery pack attachment / detachment structure adapted to be attached to the device body (21), one inner surface (23
a) A protruding projection (24) biased to be buried near the end on the far side, and a lock claw (26) that slidably projects near the opening on the other inner surface (23b). Each of them is provided with a recess (3) that engages with the protrusion (24) when the battery pack (22) is mounted.
2) and the claw engaging portion (34) that engages with the tip of the lock claw (26),
A battery pack attaching / detaching structure, characterized in that each battery pack (22) is provided. 2. The battery pack attachment / detachment structure according to claim 1, wherein the battery pack (22) is attached to the battery accommodating portion (23) bottom portion (23c) of the apparatus body (21). By providing a biasing means for biasing the locking claw (26) toward the opening side, the lock claw (26) is slid to release the engagement with the claw engagement part (34), and thus the convex part (24) and the concave part (3
The battery pack attaching / detaching structure characterized in that the engagement of 2) is released by the urging force of the urging means, and the battery pack (22) is pushed out. 3. The battery pack attaching / detaching structure according to claim 2, wherein the urging means includes a plurality of connecting pins (28) as projecting power-supplied terminals that are urged to be embedded. A connection pad (36) as a power supply terminal is provided at a position corresponding to the connection pin (28) of the battery pack (22), and when the battery pack (22) is attached, the connection pin (28) and the connection pad ( 3
A structure for attaching and detaching a battery pack, which is characterized in that an electrical connection is made by pressing the 6). 4. The battery pack attaching / detaching structure according to claim 1, wherein a concave rail is provided on one of an outer surface of the battery pack (22) and a corresponding inner surface of the battery accommodating portion (23). 30), and a plurality of convex rails (33) slidably fitted to the concave rails (30) on the other side, a battery pack attaching / detaching structure.