JPH07296786A - Battery case - Google Patents

Abstract

PURPOSE:To prevent the breakage or disconnection of an internal wiring at the falling of a detachable battery case. CONSTITUTION:A battery terminal part 15, a fuse holder part 18, and a thermistor holder 19 are provided on a battery case body 11 by an integrated wiring such as a flexible printed board. After assembling, the whole battery case body 11 is covered with foamed urethane 20, whereby a battery case easy to assemble and resistant to falling impact can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a removable battery case used in portable devices such as word processors, handheld computers, notebook computers, and mobile phones.

[0002]

2. Description of the Related Art In recent years, with the spread of portable devices, word processors, handheld computers, notebook computers, mobile phones, and the like have come to be widely used in removable battery cases for accommodating rechargeable batteries that are repeatedly charged. It has been used.

A conventional battery case will be described below. FIG. 3 is an external perspective view showing an assembled state of a conventional battery case. In FIG. 3, 1 is a battery case main body, 2
Is the upper lid of the battery case.
For example, it is made of ABS resin. 3 is the secondary battery body,
4 is a thermistor, 5 is a battery terminal, 6 is a thermistor terminal,
Reference numeral 7 is a fuse, and 8 is a lead wire for electrically connecting each component.

With respect to the battery case configured as described above, an assembling method thereof will be described below. First, the fuse 7 is soldered and connected to the secondary battery main body 3 with the lead wire 8 and is bonded to the battery case main body 1 with an adhesive. Next, the battery terminal 5 is soldered and connected with the lead wire 8. Further, the thermistor terminal 6 is soldered and connected to the thermistor 4 with a lead wire 8, and this is bonded to the battery case body 1 with an adhesive. Then, the integrated secondary battery main body 3 is inserted into the battery case main body 1, and then the battery case upper lid 2 is welded.

[0005]

However, in the above-mentioned conventional structure, the wiring of the lead wire is necessary for connecting the secondary battery main body, the thermistor, the fuse, etc., and the assembly is very difficult because of the manual work. Met. Also,
Since the battery case body is made of hard plastic, if it is dropped in a portable device that is repeatedly inserted and removed, such as when replacing the battery, the soldered part inside the battery case may be damaged or the lead wire may be damaged. There was a problem that it could not be used due to disconnection.

An object of the present invention is to solve the above-mentioned conventional problems, and an object thereof is to provide a battery case which is easy to assemble and whose internal wiring is not easily damaged or broken even when dropped during insertion and removal.

[0007]

In order to achieve this object, a battery case of the present invention is formed integrally with a battery, a battery case main body for accommodating the battery, and an inner surface of the battery case main body. And a covering portion formed of an elastic material that entirely covers the battery and the battery case main body.

[0008]

With this structure, since the wiring portion is integrally formed along the inner surface of the battery case, the connection of the battery can be facilitated and the entire battery case is covered with the covering portion having a shock absorbing effect. Therefore, it is possible to provide a battery case with less damage or disconnection of internal wiring when dropped.

[0009]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of the battery case body of the present invention before assembly. In FIG. 1, 11 is a battery case body, 21 is a flexible wiring board (hereinafter referred to as “flexible”), and a battery terminal portion 15, a thermistor terminal portion 16, a fuse holder portion 18, and a thermistor holder portion 19 are integrally wired and formed. ing. Further, the battery case 11 is provided with support portions for supporting the respective portions of the flexible member 21. FIG. 2 is an external perspective view showing the assembled state of the battery case of the present invention. In FIG. 2, 12
Is a battery case upper lid, 13 is a secondary battery main body, 14 is a thermistor, 17 is a fuse, and 20 is a foamed urethane skin covering the entire battery case.

The method of assembling the battery case having the above structure will be described below. First, the flexible wire 21 with integrated wiring is attached along the inner surface of the battery case body 11 to form the battery terminal portion 15, the thermistor terminal portion 16, the fuse holder portion 18, and the thermistor holder portion 19. Next, in the thermistor holder portion 19, the thermistor 14,
The fuses 17 are attached to the fuse holder portions 18, respectively. Next, the secondary battery main body 13 is attached to the battery terminal 15, and then the battery case upper lid 12 is attached to the battery case main body 11.
Weld to. Finally, cover the entire battery case with urethane skin 2
Coat by molding at 0.

The drop characteristics of the battery case according to this embodiment and the conventional battery case are shown in (Table 1).

[0013]

[Table 1]

As is clear from this table, the battery case according to the present embodiment is more effective than the conventional one in terms of drop impact.

As described above, according to this embodiment, since the battery terminal and the other terminals are integrally formed, not only the assembly is easy, but also the integrated wiring has a shock absorbing effect. Since it is assembled with a covering material made of an elastic material, it is resistant to impact when dropped, and damage and disconnection of internal wiring when dropped can be reduced.

Although the integrated wiring is made of flexible material in this embodiment, it may be plated wiring on the inner surface of the battery case body. In addition, as with the flexible cable, any flexible wiring may be used. Further, although the urethane foam covering the battery case is formed by molding after assembling, a molded product may be bonded in advance. Alternatively, the battery case body and the battery case upper lid may be formed of urethane foam. Here, urethane foam is used as the elastic material, but it goes without saying that the same effect can be obtained by using an elastic material such as soft rubber or shock absorbing rubber.

[0017]

As described above, according to the present invention, the battery, the battery case main body for accommodating the battery, and the wiring portion including the battery terminal integrally formed along the inner surface of the battery case main body, Since the battery and the battery case body are provided with the covering portion formed of the elastic material that entirely covers the assembly, the assembly is easy, and damage or disconnection of the internal wiring at the time of dropping can be reduced, It is possible to realize an excellent battery case suitable for mobile devices that are frequently inserted and removed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a battery case body before assembly according to an embodiment of the present invention.

FIG. 2 is an external perspective view showing an assembled state of a battery case in one embodiment of the present invention.

FIG. 3 is an external perspective view showing an assembled state of a conventional battery case.

[Explanation of symbols]

 11 Battery Case Main Body 12 Battery Case Top Cover 13 Secondary Battery Main Body 15 Battery Terminal 20 Foamed Urethane Skin 21 Flexible

Claims (3)

[Claims] 1. A battery, a battery case main body for accommodating the battery, a wiring part integrally formed along an inner surface of the battery case main body including a battery terminal, and the battery case main body as a whole. A battery case comprising a cover formed of an elastic material. 2. A battery, a battery case main body for accommodating the battery having a conductor portion for connecting the battery formed on a surface thereof, and a cover portion formed of an elastic material for entirely covering the battery case main body. Battery case characterized by 3. A battery, a battery case main body for accommodating the battery, and a wiring portion integrally formed along an inner surface of the battery case main body, the wiring part including battery terminals, wherein the battery case main body is made of an elastic material. A battery case characterized by being formed by.