JPH04106842U - power supply - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a power supply device that can prevent damage to the bottom cover as much as possible even in the event of impact by realizing mutual connection between a battery group and a main body case. [Structure] Nut parts 15 and 1 are attached to the tips 10b and 11b of the lead plates 10 and 11 connected to the electrodes of the batteries 5a and 5b.
At the same time, the electrode terminals 1 and 2 provided exposed on the outer surface of the main body case 3 are provided with male threaded portions 1a and 2a, and the male threaded portions 1a are inserted through the through holes 3c and 3d formed in the main body case 3. - 2a is configured to be screwed into the female screw portions 15a and 16a of the nut portions 15 and 16. [Effect] Since the main body case 3, the battery group 5... and the fixing plate 4 are integrated by the electrode terminals 1 and 2, when the power supply unit is dropped or receives a shock, the weight of the battery group 5... is directly absorbed. This will prevent the water from being added to the bottom cover 8.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is applicable to cordless devices such as walkie talkies and handheld computers. The present invention relates to a power supply device used as a power source.

0002

[Conventional technology]

This type of power supply device has multiple secondary batteries such as Ni-Cd batteries inside the main body case. Connect each housed battery in series with a connection plate, and connect the positive and negative electrode terminals to the outside of the case. It has an exposed basic structure (Japanese Utility Model Publication No. 62-57372, Japanese Utility Model Publication No. 64-3) (See Publication No. 178).

0003 In the conventional power supply device, as shown in FIG. 4, the main body case 51 has electrode terminals. It has an opening 51a for exposing 54. Housed within the main body case 51 The batteries 52 are bundled to form a substantially cubic body, and the insulating fibers 5 are attached to the surface of the bundle. 8 is wound. In addition, the positive and negative electrodes of each battery are directly connected by connecting plates 53... A column connection is formed, and the electrode terminal 54 is placed at a position corresponding to the opening 51a. It is placed at the location. The fixing plate 55 prevents the battery groups 52 from moving within the main body case 51. The electrode terminal 54 is attached to the top surface. The structure is as follows. Note that the electrode terminal 54 is connected to the electrode of a predetermined battery 52. There is. The bottom cover 56 houses the fixing plate 55 and the battery group 52 inside the main case 51. After being accommodated, it is fixed to the bottom side of the case 51 by ultrasonic welding.

0004

[Problem that the idea aims to solve]

However, in the conventional structure described above, the battery group 52... and the main body case 51 are not connected to each other. If the power supply unit is dropped or otherwise subjected to shock, , the weight of the battery group 52... is directly applied to the bottom cover 56, and the bottom cover 52 is connected to the main body case 51. There is a risk of it coming off or being damaged.

[0005] In view of the above circumstances, this invention realizes mutual connection between the battery group and the main body case. To provide a power supply device that can prevent damage to the bottom cover as much as possible even in the event of impact. aimed to.

[0006]

[Means to solve the problem]

In order to solve the above problems, the power supply device according to the present invention has multiple In a power supply device containing a battery, the location of the lead plate connected to the battery electrode While the screw part is provided in a fixed position, the electrical part is provided exposed on the outer surface of the main body case. The terminal terminal is also provided with a threaded portion, and the above-mentioned screw is inserted through the through hole formed in the main body case. It is characterized by both threaded parts being screwed together.

[0007]

[Effect]

According to the above configuration, the electrical connection between the lead plate and the electrode terminal is established by the screwing of both screw parts. At the same time, the battery and the main body case are interconnected. this This prevents the weight of the battery pack from being applied directly to the bottom cover in the event of an impact. It becomes.

[0008]

【Example】

An embodiment of the present invention will be described as follows based on FIGS. 1 to 3. Ru. FIG. 1 is a perspective view of a power supply device according to the present invention, and FIG. 2 is a sectional view taken along the line X-X. , FIG. 3 is an exploded perspective view. The power supply device includes electrode terminals 1 and 2, a main body case 3, and , a fixing plate 4, a battery group 5..., an insulating fiber 6, a connecting plate 7..., a bottom cover 8, Consisting of lead plates 10 and 11 and nut parts 15 and 16, the electrode terminals 1 and Nut parts 15 and 16 in which male screw parts 1a and 2a of No. 2 are connected to lead plates 10 and 11 It has a structure in which it is screwed into female threaded portions 15a and 16a of.

[0009] That is, the electrode terminals 1 and 2 are provided exposed on the outer surface of the main body case 3. There is a male screw part made of conductive material approximately in the center of the lower surface of the disc-shaped electrode terminal body. 1a and 2a are formed. Approximately at the center of the upper wall of the main body case 3, there is a corresponding disc-shaped electrode terminal main body. The recesses 3a and 3b are formed, and a recess 3a and 3b are formed at approximately the center position of these recesses 3a and 3b. is formed with through holes 3c and 3d for passing the male threaded portions 1a and 2a. There is.

0010 The fixing plate 4 is made of resin such as plastic, and is used to hold the battery inside the main body case 3. This is to fix the group 5 so that it does not move, and it is used to secure the bundled battery group 5... It has a shape that follows the covering insulating fiber 6 and corresponds to the above-mentioned through holes 3c and 3d. It has through holes 4a and 4b for passing the male threaded parts 1a and 2a at the positions where ing.

[0011] The battery group 5... is bundled to form a substantially cubic body, and a lead plate 10/1 is provided on the surface of the battery group 5. An insulating fiber 6 for insulation between the battery pack 1 and the battery group 5 is wound. Ma In addition, the battery group 5 is connected by connecting the positive and negative electrodes of each battery 5 with the electrode connection plates 7... A series connection state is formed in... The base end 10a of the lead plate 10 is connected to the positive electrode of the battery 5a, while the tip end 10a is connected to the positive electrode of the battery 5a. The side 10b is the upper surface position of the cubic battery group 5 and corresponds to the above-mentioned through hole 4a. A conductive material is provided on the tip side 10b. A cut portion 15 is provided. The female threaded portion 15a formed in the nut portion 15 is It is located at a position corresponding to the through hole 4a described above.

0012 Similarly, the base end 11a of the lead plate 11 is connected to the negative electrode of the battery 5b. On the other hand, the tip end side 11b is located at the top surface of the cubic battery group 5 and is opposite to the through hole 4b. The conductive material is extended close to the corresponding position, and the conductive material is A nut portion 16 is provided. Female threaded portion 16 formed in the nut portion 16 a is located at a position corresponding to the above-mentioned through hole 4b.

[0013] The bottom cover 8 is attached after the fixing plate 4 and the battery group 5 are housed in the main body case 3. It is fixed to the bottom side of the case 3 by ultrasonic welding. According to the above configuration, the male threaded portions 1a, 2a and the female threaded portions 15a, 16a are screwed together. When the electrical connection between the lead plates 10 and 11 and the electrode terminals 1 and 2 is established, Together, the battery groups 5... and the main body case 3 are interconnected. That is, the main case 3, battery group 5... and fixing plate 4 are integrated by electrode terminals 1 and 2. this Therefore, when the power supply unit is dropped or receives a shock, the weight of battery group 5... will be directly at the bottom. Addition to the lid 8 will be avoided.

[0014] Note that if the power supply unit falls with the top side of its main case 3 facing down, the main unit The top corner of the body case 3 is strongly formed, so if it falls in such a case, The bottom cover 8 etc. will not be damaged even by the impact of time.

[0015]

[Effect of the idea]

As described above, according to the present invention, when the power supply device is dropped or receives a shock, the power supply This prevents the weight of the pond from being applied directly to the bottom cover, and prevents the bottom cover from coming off or being damaged as much as possible. It has the effect of

[Brief explanation of drawings]

FIG. 1 is a perspective view of a power supply device as an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line XX in FIG. 1;

FIG. 3 is an exploded perspective view of the power supply device.

FIG. 4 is a sectional view of a conventional power supply device.

[Explanation of symbols]

1 Electrode terminal 1a Male thread part 2 Electrode terminal 2a Male thread part 3 Main body case 3c through hole 3d through hole 5 Batteries 10 Lead plate 11 Lead plate 15a Female thread part 16a Female thread part

Claims (1)

[Scope of utility model registration request] [Claim 1] In a power supply device in which a plurality of batteries are housed in a main body case, a threaded portion is provided at a predetermined position on a lead plate connected to an electrode of the battery, while a threaded portion is provided on the outer surface of the main body case. A power supply device characterized in that the provided electrode terminal is also provided with a threaded portion, and both of the threaded portions are screwed together through a through hole formed in the main body case.