JP2002141037A - Battery housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery housing device which has movable contact points that bend pliantly with low spring. SOLUTION: The battery housing device 100 houses the battery 120 and supplies the power of the battery 120 to the outside. The battery housing device 100 comprises a terminal plate 140 contacts with the electrode 124 of the battery 120, a terminal plate holding part 130 that mounts the terminal plate 140, a fixing tool 150 that fixes the terminal plate 140 to the terminal plate holding part 130, and a conductive member 160 that secures the conduction between the terminal plate 140 and the electrode 124, even when the battery 120 is separated from the terminal plate 140. The conductive member 160 is structured of a fixing part 164 that is fixed to the terminal plate 140 by the fixing tool 150 and an electrode contacting part 162 that extends from the fixing part 164 to the electrode 124 and has elasticity in the direction of the main axis of the battery 120.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery accommodating apparatus for accommodating a battery and supplying power of the battery to the outside. In particular, the present invention relates to a battery accommodating device that can maintain conduction with a battery even when an external impact is applied.

[0002]

2. Description of the Related Art Conventionally, this type of apparatus has been disclosed in
2. Description of the Related Art A battery housing device disclosed in Japanese Patent Application Publication No. 85851 is known. The battery accommodating device has a negative terminal that contacts the negative electrode of the battery and a positive terminal that contacts the positive electrode of the battery. The negative terminal has a spring property,
Press the contained battery strongly toward the positive terminal. On the other hand, the plus terminal is formed from a single plate material and has a fixed contact portion having no spring property and a movable contact portion having spring property and capable of bending toward the minus terminal.
The fixed contact portion is a contact portion that supports the battery pressed by the minus terminal immovably. On the other hand, the movable contact
When the battery moves toward the negative terminal so as to separate from the fixed contact portion for some reason, the contact portion follows the positive electrode of the battery and bends to the negative terminal side to ensure conduction with the battery.

In order to ensure the conduction of the positive terminal with the battery electrode, it is desirable to increase the distance over which the movable contact can bend toward the negative electrode. Further, the movable contact needs to have a spring property smaller than that of the negative terminal. This is because, if the spring property of the movable contact is too large, the negative terminal cannot press the battery against the fixed contact part of the positive terminal. For this reason, as the movable contact of the plus terminal, a flexible contact that has a large springable distance but a large bendable distance has been desired.

[0004]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No. 7-8 / 1995
In the battery accommodating device disclosed in Japanese Patent No. 5851, it is difficult to satisfy the above-described condition desired for the movable contact because the plus terminal is formed from a single plate. That is, in order to obtain an immovable portion such as a fixed contact portion, a relatively hard and thick plate material must be used. However, there has been a problem that it is difficult to form a movable contact having a small spring property and flexibly at the same time from such a hard and thick plate material.

Accordingly, an object of the present invention is to provide a battery accommodating device which can solve the above-mentioned problems.
This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous embodiments of the present invention.

[0006]

In order to achieve the above object, a battery accommodating device according to a first embodiment of the present invention accommodates a battery and supplies power of the battery to the outside. The battery accommodating device includes a terminal plate that comes into contact with the battery electrode, a terminal plate holding portion to which the terminal plate is attached, a fixing device that fixes the terminal plate to the terminal plate holding portion, and a battery that is separated from the terminal plate. A conductive member that secures conduction between the terminal plate and the electrode, and the conductive member extends from the fixed portion to the electrode with the fixing portion fixed to the terminal plate by the fixing tool, and extends in the main axis direction of the battery. And an electrode contact portion having elasticity.

[0007] The electrode contact portion may be a cantilever whose base is supported by the fixing portion and which can bend in the main axis direction of the battery. The electrode contact portion has a shape curved toward the electrode direction, and the end of the electrode contact portion opposite to the fixed portion is slidably disposed on the electrode-side surface of the terminal plate. Is also good.

The terminal plate has an opening at a position corresponding to the electrode of the battery, and the fixed portion of the conductive member is fixed to the opposite side of the terminal plate from the electrode side. Is
The end portion may be arranged on the surface of the terminal plate on the electrode side by extending to the electrode side through the opening.

[0009] The electrode contact portion of the conductive member may have a protruding portion protruding in the main axis direction from a portion where the terminal plate is in contact with the electrode. The terminal plate may have an opening at a position corresponding to the electrode of the battery, and the projection of the electrode contact portion may project toward the electrode of the battery through the opening. The fixing portion may be fixed between the terminal plate and the terminal plate holding portion.

The terminal plate holding portion has a projection to which a fixture is fastened, the fixing portion of the conductive member is deformed along the side surface of the projection, and the conductive member projects the fixing portion. You may make it fix to a terminal board holding part in the state which contact | abutted the side surface of the part.

[0011] The terminal plate holding portion includes a fixing portion for the conductive member.
A support portion may be provided to support the terminal plate holding portion at a distance from the bottom surface, and the fixing portion of the conductive member may be fixed between the terminal plate and the support portion. The conductive member may be made of a wire.

The above summary of the present invention does not enumerate all of the necessary features of the present invention, and a sub-combination of these features can also be an invention.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described through embodiments of the present invention. However, the following embodiments do not limit the claimed invention and have the features described in the embodiments. Not all combinations are essential to the solution of the invention.

(First Embodiment) FIG. 1 is a schematic sectional view of a battery accommodating device 100 according to a first embodiment. Battery storage device 100 includes storage container 110 that stores battery 120. An upper fixed electrode portion 112 is provided on the upper surface in the drawing of the housing 110. Upper fixed electrode section 112
Contacts the first electrode 122 of the battery 120. The upper fixed electrode section 112 is formed of, for example, a leaf spring or the like.

A terminal plate holding portion 130 is provided at the lower end of the storage container 110 in the drawing. The terminal plate holding section 130 holds the terminal plate 140. Further, the terminal plate holding portion 130 is
It serves as a lid for the storage container 110. That is, the terminal plate holding portion 130 can be opened by being rotated about the shaft 132 as a fulcrum, as shown by a dotted line in the drawing. Terminal plate holder 130
, The battery 120 can be taken in and out.

The terminal plate 140 held by the terminal plate holding portion 130, together with the upper fixed electrode portion 112,
Contact with the second electrode 124 of the
Is transmitted to the outside through wiring (not shown). The terminal plate 140 has a chevron 142 that projects from the surface toward the battery 120. The terminal plate 140 has a chevron 142
At contact with the electrode 124 of the battery 120.

The terminal plate 140 is fixed to the terminal plate holder 130 by a fixing tool 150 such as a screw, a nail, or a rivet. The fixture 150 is inserted into and fixed to a protrusion 134 provided near the center of the terminal plate holder 130.
At this time, the fixture 150 fixes the terminal plate 140 so as to be sandwiched between the terminal plate 140 and the protrusion 134 of the terminal plate holding portion 130.

The terminal plate holder 130 is provided with the terminal plate 140.
In addition, it also holds the conductive member 160. The conductive member 160 is fixed to the terminal plate holder 130 by partially sandwiching the conductive member 160 between the fixture 150 and the protrusion 134 of the terminal plate holder 130, similarly to the terminal plate holder 130. ing. The conductive member 160 is a member for ensuring conduction between the terminal plate 140 and the electrode 124 of the battery when the battery 120 is momentarily separated from the terminal plate 140 due to an external impact. The conductive member 160 is made of, for example, a metal wire such as a conductive wire. The conductive member 160 is moved by a force acting from the fixture 150.
It has a fixing portion 164 fixed between the terminal plate 140 and the terminal plate holding portion 130, and an electrode contact portion 162 extending from the fixing portion 164 to the electrode 124 of the battery.

The electrode contact portion 162 is a cantilever having an elastic force in the main axis direction of the battery 120 (arrow A in the figure).
Here, the main axis direction (arrow A in the figure) of the battery 120 is as follows.
The direction perpendicular to the surface of the electrode 124 of the battery 120 is referred to.
The electrode contact portion 162 has a protruding portion 162a that protrudes from the opening 144 provided in the terminal plate 140 in the main axis direction of the battery 120. When the battery 120 is not housed in the housing 110, the projecting portion 162 a projects in the main axis direction A of the battery beyond the angled portion 42 of the terminal plate 140. When the battery 120 is housed in the housing container 110, the battery electrode 124 connects the protrusion 162 a to the terminal plate 1.
While pressing down toward 40, it contacts the chevron 142 of the terminal plate. Therefore, usually, both the chevron 142 of the terminal plate and the protrusion 164a of the conductive member simultaneously contact the electrode 124 to maintain conduction.

Here, the upper fixed electrode portion 112 and the conductive member 160 have elasticity enough to be pressed by the battery 120 and bend. On the other hand, the chevron 42 of the terminal plate 140 is a part of the terminal plate. Normally, the upper fixed electrode portion 112 and the chevron portion 142 of the terminal plate 140 are kept in contact by contacting the battery 120 from above and below, respectively. At this time, the upper fixed electrode portion 112 causes the battery 120 to be connected to the angled portion 142 of the terminal plate 140 by its elastic force.
Pressing against. Therefore, the conductive member 160
Is stronger than the elastic force of the upper fixed electrode portion 112, the battery 120 separates from the chevron 142 of the terminal plate 140. Therefore, in the present embodiment, the conductive member 160
Is set to be smaller than the elastic force of the upper fixed electrode 112.

Next, a description will be given of the operation of ensuring conduction when the battery 120 moves within the storage container 110 when the battery storage device 100 receives an external impact. Battery 120 is battery 12
When moving in the main axis direction A of 0, the upper fixed electrode portion 112 supports the battery 120 while bending. at the same time,
The electrode 124 of the battery 120 is connected to the chevron 14 of the terminal plate 140.
Leave 2 However, the conductive member 160 that has been pressed and bent by the battery 120 is restored and moves in the main axis direction A following the battery 120. Therefore, the conductive member 16
A value of 0 can ensure continuous conduction with the electrode 124 of the battery 120.

FIG. 2 is an exploded perspective view of the terminal plate holding section 130. The terminal plate holding portion 130 has a protrusion 134 to which the fixture 150 is fastened at the center of the inner bottom surface. The terminal plate holding portion 130 has a support portion 136 that protrudes from the protrusion 134 and supports the fixing portion 164 of the conductive member 160 at a distance from the bottom surface of the terminal plate holding portion 130. Support part 1
If the height of 36 is set high, the distance between the conductive member 160 and the bottom surface of the terminal plate holding portion 130 increases. Therefore,
The conductive member 160 can flexibly and largely bend in the spindle method A. Further, the terminal plate holding section 130 has a guide section 138 for guiding the end of the conductive member 160 in the main axis direction of the electrode contact section 162.

The fixing portion 164 of the conductive member 160 has a substantially semicircular curved shape along the outer peripheral surface of the projection 134 of the terminal plate holding portion 130. The electrode contact portion 162
The base is supported by the fixing portion 164 and the battery 120
Is a cantilever that can bend in the main axis direction A. Further, the electrode contact portion 162 forms a protruding portion 162a by curving the central portion in the main axis direction A.

The terminal plate 140 is connected to the electrode 124 of the battery 120.
, In other words, at a position facing the electrode 124. The protruding portion 162a of the electrode contact portion 162 protrudes toward the electrode 124 of the battery 120 through the opening 144. The chevron 142 of the terminal plate 140 is near the opening 144 and contacts the electrode 124 of the battery 120.

Next, the mounting positions of the conductive member 160 and the terminal plate 140 in the terminal plate holding section 130 will be described. The fixing portion 164 of the conductive member 160 is attached in a state of being applied along the side surface of the protrusion 134 of the terminal plate holding portion 130. Further, the end of the electrode contact portion 162 is attached so as to enter between the guide portions 138. Therefore, the conductive member 160 can be appropriately bent in the main axis direction A of the battery 120 without shifting in a direction parallel to the inner bottom surface of the terminal plate holding portion 130.

The terminal plate 140 is mounted such that the hole 146 near the center corresponds to the projecting portion 134 of the terminal plate holding portion 130. Further, the opening 144 of the terminal plate 140 is attached so as to pass through the protrusion 162a of the conductive member 160. By doing so, the terminal plate 140 can be attached to an appropriate position of the terminal plate holding portion 130. That is, the opening 144 of the terminal plate 140 plays a role as a positioning portion for attaching the terminal plate 140 to the terminal plate holding portion 130 and the conductive member 160. The terminal plate 140 is larger than the conductive member 160. Therefore, the terminal plate 140 can stably press and fix the conductive member 160 against the terminal plate holding portion 130.

Finally, using a fixture 150 such as a screw,
The conductive member 160 and the terminal plate 140 are fixed to the terminal plate holder 130. Thus, the fixing device 150 such as a screw is used.
By fixing the terminal plate by using the method, it is possible to eliminate the need for spot welding, which involves a manufacturing process and a manufacturing cost.

FIG. 3 is a cross-sectional view of the CC of the terminal plate holder 130 of FIG.
It is sectional drawing along the line. This figure shows a state where the conductive member 160 and the terminal plate 140 are attached to the terminal plate holding portion 130.

The fixing portion 164 of the conductive member 160 is fixed between the terminal plate 140 and the terminal plate holding portion 130. More specifically, the fixing portion 164 is attached to the terminal plate 140 in a state in which the fixing portion 164 follows the side surface shape of the protrusion 134 of the terminal plate holding portion 130.
And the supporting portion 136 of the terminal plate holding portion 130. Therefore, by using the fixing portion 164, the conductive member 160 can be attached to an appropriate position of the terminal plate holding portion 130. That is, the fixing portion 164 of the conductive member 160 plays a role as a positioning portion for attaching the conductive member 160 to the terminal plate holding portion 130.

The protrusion 162a of the conductive member 160
Protrudes in the main axis direction of the battery 120 from a portion where the terminal plate 140 is in contact with the electrode 124 of the battery 120. That is, in the state where the battery 120 is not stored in the storage container 110 as shown in FIG.
The tip of 2a is located at a position higher in the main axis direction than the apex of the chevron 142 of the terminal plate 140. Here, when the battery 120 is housed in the housing container 110, the conductive member 160 is pushed down by the battery 120. Therefore, the electrode contact portion 162 which is a cantilever in the conductive member 160 is
The battery 120 bends in the direction opposite to the main axis. Therefore, even if the battery 120 moves in the main axis direction A when the battery housing device 100 receives an impact from the outside, the conductive member 160 moves following the battery 120 to ensure conduction with the battery 120. be able to.

(Second Embodiment) FIG. 4 is a cross-sectional view of a terminal plate holding portion 230 in a battery accommodating device 100 according to a second embodiment. In the present embodiment, the terminal plate holder 230
And the method of attaching the conductive member 160 are different from those of the first embodiment. In other respects, the present embodiment is the same as the first embodiment. Therefore, hereinafter, only the points in which the present embodiment is different from the first embodiment will be described. In the following description, members already described in the first embodiment are denoted by the same reference numerals as those used in the first embodiment.

The fixing portion 164 of the conductive member 160 is fixed to the terminal plate 140 on the side opposite to the electrode 124 side of the battery 120. That is, the fixing portion 164 is fixed between the terminal plate 140 and the inner bottom surface of the terminal plate holding portion 130. The electrode contact portion 162 of the conductive member 160 extends to the electrode 124 side through the opening 144 of the terminal plate 140. The tip of the electrode contact portion 162 is disposed on the surface of the terminal plate 140 on the electrode 124 side.

In the arrangement of the conductive member 160 as described above, when the electrode contact portion 162 is pressed by the battery 120, the electrode contact portion 162 of the conductive member 160 bends as shown by a dotted line in FIG. Deform. That is, the two ends of the electrode contact portion 162 on the side opposite to the fixing portion 164 may slide on the surface of the terminal plate 140 and move in the direction of arrow B in the drawing, and may bend downward under the terminal plate 140. Absent.

On the other hand, the battery 120 moves and the electrode contact portion 1
62 is separated from the battery 120, the conductive member 16
The sliding movement of the leading end of the battery 120 causes the protrusion 162a of the conductive member 160 to bend in the direction of the main axis A of the battery 120. Therefore, the conductive member 160 moves following the electrode 124 of the battery 120 and can secure conduction with the battery 120. The power transmitted to the conductive member 160 is applied to the terminal plate 14.
0 and the fixing portion 16 of the conductive member 160
4 to the terminal plate 140.

Preferably, the distance between the end of the electrode contact portion 162 and the terminal plate holding portion 130 is adjusted so that the conductive member 160 can slide properly.

As described above, by arranging the conductive member 160 on the terminal plate 140, it is possible to reduce the space in the terminal plate holding portion 230 while ensuring conduction with the battery 120. Therefore, the size of the battery housing device 100 can be reduced. In particular, the present invention is suitable for a battery accommodating device accommodated in a portable electronic device requiring compactness.

As described above, according to the first and second embodiments, the battery accommodating device 100 having the conductive member capable of maintaining the conduction of the battery against external impact can be provided in a small space and at low cost. .

In addition, a wire is used as the conductive member 160, and spot welding is not performed when attaching the conductive member 160 and the like. Therefore, it is not necessary to perform spot welding which requires cost and man-hour, and cost and man-hour can be reduced.

When a wire is used as the conductive member,
It is only necessary to perform bending. Therefore, the manufacturing cost can be reduced without requiring die processing unlike a leaf spring.

Although the present invention has been described with reference to the embodiment, the technical scope of the present invention is not limited to the scope described in the above embodiment. Various changes or improvements can be added to the above embodiment. It should be noted that such modified or improved embodiments may be included in the technical scope of the present invention.
It will be understood by those skilled in the art from the description of the claims.

(Modification) FIG. 5 shows the shape of the terminal plate holder 230 and the conductive member 160 of the second embodiment shown in FIG.
FIG. 4 is a diagram showing an example in which the attachment position of the is changed. In the figure, the fixing portion 164 of the conductive member 160 is fixed to the surface of the terminal plate 140 on the electrode 124 side of the battery 120 by the fixing device 150. Therefore, the conductive member 16
Since 0 is on the terminal plate 140 surface, the terminal plate holding portion 330
The space inside the can be reduced. In addition, since the terminal plate 140 faces and contacts the inner bottom surface of the terminal plate holding portion 330, the terminal plate 140 does not wobble stably. Further, the terminal plate 140 and the conductive member 160 can be easily attached. Note that, in this drawing, the opening 144 of the terminal plate 140 may not be provided as in the second embodiment.

FIG. 6 is a view showing a modification of the conductive member 160 in the first and second embodiments. The conductive member 170 in the figure is made of, for example, an elongated metal plate. The plate member 170 has a hole 174 near the center. This hole 1
By using the 74 as a positioning portion for mounting, the plate member 170 is mounted at a predetermined position of the terminal plate holding section 130 by the fixing tool 150.

In FIGS. 1 to 6, the numbers of the openings 144 and the chevron portions 142 in the terminal plate 140 are not limited to the figures. Further, the direction of the battery and the type of the electrode in contact with the conductive member 160 are not limited to those shown in the drawings. Further, the number of the conductive members 160 is not limited to one.

[0044]

As is apparent from the above description, according to the present invention, when the battery accommodating device is moved by the external impact of the battery accommodating device, the conductive member can properly conduct the battery. Can be secured.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a battery housing device 100 according to a first embodiment.

FIG. 2 is an exploded perspective view of the terminal plate holding unit 130.

FIG. 3 is a cross-sectional view of the terminal plate holding unit 130 of FIG. 2 taken along the line CC.

FIG. 4 is a cross-sectional view of a terminal plate holding section 230 in the battery housing device 100 according to the second embodiment.

FIG. 5 is a terminal plate holding portion 23 of the second embodiment shown in FIG.
FIG. 9 is a diagram showing an example in which the shape of the “0” and the mounting position of the conductive member 160 are changed.

FIG. 6 is a view showing a modification of the conductive member 160 in the first and second embodiments.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Battery storage device 110 Storage container 112 Upper fixed electrode part 120 Battery 122 First electrode 124 Second electrode 130 Terminal plate holding part 132 Axis 134 Projection part 138 Guide part 140 Terminal plate 142 Angle part 144 Opening part 150 Fixture 160 Conductive member 162 Electrode contact portion 162a Projecting portion 164 Fixed portion

Claims (10)

[Claims] 1. A battery accommodating device for accommodating a battery and supplying power of the battery to the outside, a terminal plate contacting an electrode of the battery, a terminal plate holding portion to which the terminal plate is attached, and the terminal plate And a conductive member for securing conduction between the terminal plate and the electrode even when the battery is separated from the terminal plate, the conductive member comprising: A battery accommodating device comprising: a fixing portion fixed to the terminal plate by the fixing tool; and an electrode contact portion extending from the fixing portion to the electrode and having elasticity in a main axis direction of the battery. . 2. The battery accommodating device according to claim 1, wherein the electrode contact portion is a cantilever having a base supported by the fixing portion and capable of bending in a main axis direction of the battery. . 3. The electrode contact portion has a shape curved toward the electrode direction, and an end of the electrode contact portion opposite to the fixing portion is provided on a surface of the terminal plate on the electrode side. The battery accommodating device according to claim 1, wherein the battery accommodating device is slidably disposed on the battery housing. 4. The terminal plate has an opening at a position corresponding to the electrode of the battery, and the fixing portion of the conductive member is fixed to a side of the terminal plate opposite to the electrode. The electrode contact portion of the conductive member extends to the electrode side through the opening, so that the end portion is disposed on the surface of the terminal plate on the electrode side. The battery storage device according to claim 3. 5. The electrode contact portion of the conductive member has a protruding portion that protrudes in the main axis direction from a portion where the terminal plate is in contact with the electrode. The battery housing device according to any one of the above. 6. The terminal plate has an opening at a position corresponding to the electrode of the battery, and the projection of the electrode contact portion passes through the opening toward the electrode of the battery. The battery accommodating device according to claim 5, wherein the battery accommodating device protrudes. 7. The battery connection storage according to claim 1, wherein the fixing portion is fixed between the terminal plate and the terminal plate holding portion. 8. The terminal plate holding portion has a projection to which the fixing tool is fastened, wherein the fixing portion of the conductive member is deformed along a side surface of the projection, The battery accommodating device according to claim 1, wherein the member is fixed to the terminal plate holding portion with the fixing portion abutting on a side surface of the protrusion. 9. The terminal plate holding portion includes a support portion that supports the fixing portion of the conductive member at a distance from a bottom surface of the terminal plate holding portion, and the fixing portion of the conductive member. The battery accommodating device according to claim 1, wherein the battery housing is fixed between the terminal plate and the support portion. 10. The battery accommodating device according to claim 1, wherein the conductive member is made of a wire.