JPH097564A - Battery holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such a battery holder as being capable of dissipating heat generated from cylindrical batteries through vent holes to the outside by holding the upper and lower ends of the cylindrical batteries with a pair of supports having the vent holes. SOLUTION: A battery holder consists of a pair of upper and lower thick plate supports 2, 2. In the opposite faces of the supports, preset depth of battery holes 2a are made to fit therein cylinders on the positive electrode sides or the negative electrode sides of cylindrical batteries 1 supported by these supports. Electrode holes 2b passing into the opposite sides of the opposite faces are opened in the bottom centers of the battery holes and vent holes 2c passing from the opposite faces into the opposite sides are opened in place between the battery holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery holder that holds a plurality of sealed batteries in a lump.

[0002]

2. Description of the Related Art A conventional battery holder is, for example, a real battery shovel 60.
As described in JP-A-22752, a plurality of cylindrical batteries are arranged so that their circumferential side surfaces are adjacent to each other, and the periphery is surrounded by a frame body, and both end faces of the positive and negative electrodes of each cylindrical battery are exposed. It had a lid attached to it. The frame body is composed of a side wall surrounding the periphery and a large number of partition walls projecting inward from the side wall, and each cylindrical battery is inserted and supported between these side walls and partition walls. In addition, a plurality of holes are formed in the block-shaped frame body, a cylindrical battery is inserted into each hole, or a large hole formed by connecting these holes to each other is formed. There is also a case where the cylindrical batteries are collectively inserted. An elastic connection plate is appropriately disposed on the lid body on the surface of the cylindrical battery facing the positive and negative electrodes of the cylindrical battery so as to connect the cylindrical batteries.

[0003]

By the way, when the battery is discharged, heat is generated by an internal chemical reaction, and this heat generation amount becomes large especially when a large current is taken out. Further, in the case of a sealed secondary battery such as a nickel-cadmium battery or a nickel-hydrogen battery, heat is generated even during charging. However,
When the temperature of the battery rises due to these heat generations, self-discharge may reduce the battery capacity or shorten the battery life. Therefore, the temperature at the time of use of the battery is, for example, -10 ° C to 60 ° C at the time of discharging in a normal nickel cadmium battery or the like.
The temperature is determined to be within a predetermined temperature range, such as 0 ° C to 35 ° C during charging.

However, in the above-mentioned conventional battery holder, the cylindrical battery is surrounded by a frame body and both ends are covered with lids so that the inside is substantially sealed. There is a problem that the generated heat cannot be sufficiently released to the outside and the temperature of the cylindrical battery may rise beyond the specified range. It should be noted that this problem is not limited to the cylindrical battery, but is common to other sealed batteries such as prismatic batteries having other shapes.

The present invention has been made in view of the above circumstances, and the upper and lower ends of a sealed battery are held by a pair of supports provided with ventilation holes so that the sealed battery can be removed through the ventilation holes. An object of the present invention is to provide a battery holder that can release the generated heat to the outside.

[0006]

That is, in order to solve the above problems, the battery holder of the present invention comprises a pair of upper and lower plate-shaped supports, and the pair of supports are provided on the opposing surfaces of the supports. A plurality of battery holes having a predetermined depth for fitting the positive electrode side or the negative electrode side sealed portion of the sealed battery sandwiched by are formed, and a part of the bottom surface of each battery hole is penetrated to the opposite side of the facing surface. It is characterized in that electrode holes are opened, and ventilation holes penetrating from the facing surface to the opposite side are opened at appropriate places between the plurality of battery holes.

The battery holder of the present invention comprises a pair of upper and lower plate-like supports, and the positive and negative sides of the sealed battery sandwiched by the pair of supports on the opposing surfaces of the supports. A plurality of battery holes having a predetermined depth into which the sealed portion is fitted are formed, and an electrode hole penetrating to the opposite side of the facing surface is opened in a part of the bottom surface of each battery hole, and the plurality of battery holes are formed. A ventilation groove is formed at an appropriate position on the inner peripheral surface of the electrode hole so as to communicate from the opposing surface to the opposite side.

Further, a concave groove extending from the opposite surface to the opposite side is formed at an appropriate position on the side surface of each support.

Alternatively, the sealed battery is provided with current collecting terminals having different heights on the positive electrode side and the negative electrode side, respectively.
In addition, the battery holes adjacent to each other are formed at different depths by a height difference due to the polarity of the current collecting terminal.

Alternatively, a protrusion is formed on one or both of the peripheral end of the surface opposite to the facing surface of each of the supports and the peripheral edge of the ventilation hole or the ventilation groove. .

[0011]

According to the function, the sealed portion on the positive and negative electrode sides of the sealed battery is fitted into the battery hole, so that the plurality of sealed batteries are held between the pair of upper and lower supports provided with the vent holes. The heat generated from each sealed battery can be released to the outside through this vent hole. Further, since the peripheral side surface of the sealed battery, which faces the outside, is exposed to the outside between the pair of upper and lower supports, heat is also released to the outside. In the sealed battery, the positive and negative electrodes at both ends are exposed on the upper and lower side surfaces of the support through the electrode holes, so that the sealed batteries can be connected to each other or to the outside.

[0012] Also by the means described above, the heat generated from each sealed battery can be radiated to the outside through a ventilation groove that communicates from the opposite surface to the opposite side at appropriate places on the inner peripheral surface of the battery hole and the electrode hole.

Further, according to the above means, when a plurality of battery holders holding the sealed battery by the pair of upper and lower supports are arranged side by side, the concave grooves formed on the side surfaces of the adjacent supports facing each other are vent holes. Since it plays a role similar to, heat generated from each sealed battery can be released to the outside through this groove.

According to the above means, when the adjacent sealed batteries are arranged so that their polarities are upside down, the sealed portions of these sealed batteries have different depths of fitting into the battery holes. Therefore, the protruding ends of the current collecting terminals on the positive electrode side and the negative electrode side of the adjacent sealed batteries can be flush with each other. Therefore, the connecting body for connecting the current collecting terminals and connecting the plurality of sealed batteries in series can be made into a simple shape such as a flat plate, and it is also necessary to change the shape according to the polarity to be connected. Disappear. Also, by connecting and fixing this connecting body to the current collecting terminals by screwing or the like, the pair of upper and lower supports can be surely fixed to the plurality of sealed batteries.

According to still another means, it is possible to prevent rotation at the time of removing the connecting plate to prevent a short circuit with an adjacent battery, and also to prevent a short circuit when stacking the assembled batteries. .

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 13 show an embodiment of the present invention. FIG. 1 is an assembled perspective view of a battery holder, FIG. 2 is a plan view of a support, and FIG. 3 is AA of FIG. Cross-sectional view,
4 is a sectional view taken along the line BB in FIG. 2, FIG. 5 is an assembled perspective view when the connection plate is screwed to the battery holder, FIG. 6 is a perspective view of the battery holder, and FIG. 7 is C- of FIG. Sectional view taken in the direction of arrow C, FIG.
6 is a sectional view taken along the line D-D in FIG. 6, FIG. 9 is a partial perspective view when a plurality of battery holders are arranged, FIG. 10 is a plan view showing another shape of the support, and FIG. 11 is shown in FIG. FIG. 12 is a partial plan view showing a corner portion when a plurality of supports are arranged side by side. FIG. 12 shows a case where a protrusion is formed on the peripheral edge of the surface opposite to the facing surface of the support and the peripheral edge of the ventilation hole or ventilation groove. FIG. 13 is a perspective view showing a case where ventilation grooves are provided on the inner peripheral surfaces of the battery hole and the electrode hole.

This embodiment describes a battery holder that holds six cylindrical batteries composed of nickel-cadmium batteries or nickel-hydrogen batteries. However, the present invention is not limited to the type and shape of the battery, and may be a normal manganese dry battery or a sealed battery having another shape such as a prismatic shape. As shown in FIG. 1, the six cylindrical batteries 1 are arranged so that the positive and negative electrodes of adjacent ones are upside down, and three cylindrical batteries 1 are arranged in two rows. Each cylindrical battery 1 has positive and negative collector terminals 1a and 1b attached to both end surfaces of the cylinder. These current collecting terminals 1a and 1b support the connecting surface of the central portion in which the female screw hole is bored by the four side leg portions to project, and the leg portions are attached to the positive and negative cylindrical end faces of the cylindrical battery 1. Each is a conductive connecting member fixed by spot welding. However, the collector terminal 1a on the positive electrode side is the cylindrical battery 1
Since it is attached so as to cover a convex portion (not shown) that accommodates the safety valve for degassing provided on the cylindrical end surface of the positive electrode, it is taller than the current collecting terminal 1b on the negative electrode side.

The above-mentioned six cylindrical batteries 1 are sandwiched by a pair of upper and lower supports 2 and 2. These supports 2, 2
Is made of a substantially rectangular plate-shaped insulating synthetic resin plate, both of which have the same shape and are used so as to face each other. As shown in FIG. 2 to FIG. 4, each support 2 has two battery cells 2a having the same diameter as or slightly larger than the cylindrical portion of the cylindrical battery 1 in two rows of three on the opposite surface. It is set up. Each battery hole 2a is formed by a collector terminal 1 of the cylindrical battery 1.
The holes are formed in two kinds of depths having different depths by the difference in height between a and 1b, and the adjacent ones are arranged so that the depths thereof are different from each other. Then, the cylindrical portion on the positive electrode side of the cylindrical battery 1 is fitted in the shallow battery hole 2a, and the cylindrical portion on the negative electrode side of the cylindrical battery 1 is fitted in the deep battery hole 2a. Further, on the bottom surface of each battery hole 2a, an electrode hole 2b having a smaller diameter than the battery hole 2a is opened so as to penetrate to the back surface side. The electrode holes 2b are used for collecting terminals 1a and 1b when the cylindrical portion of the cylindrical battery 1 is fitted into the battery hole 2a.
Of the battery hole 2a.
It is designed so that it can come into contact with the bottom surface of the. In addition, at this time, since the positive electrode side cylindrical portion and the negative electrode side cylindrical portion have different depths of the battery holes 2a into which they are inserted, the connecting surfaces of the tip ends of both the positive and negative electrode current collecting terminals 1a and 1b are both supporting members. It is almost flush with the back surface of 2.

In the support 2, the four battery holes 2a are formed.
A ventilation hole 2c penetrating from the front surface to the back surface side is opened in a gap between two places surrounded by. In addition, on the peripheral side surface of the support body 2, recessed grooves 2d extending from the front surface to the back surface side are formed between adjacent battery holes 2a. Further, the four corners of the rectangular support 2 are each carved into an arcuate convex surface to form rounded portions 2e.

As shown in FIG. 1, the pair of upper and lower support members 2 and 2 having the above-described structure are arranged so that their surface sides are opposed to each other and the facing battery holes 2a and 2a have different depths. Then, as shown by the arrows in FIG. 1, the positive and negative electrode side cylinders of the six cylindrical batteries 1 are fitted into the battery holes 2a of the upper and lower supports 2 and 2, respectively. Then, as shown in FIG.
Six cylindrical batteries 1 are sandwiched between the upper and lower supports 2 and 2, and the collector terminals 1a and 1b of each cylindrical battery 1 are connected to the electrode holes 2
It will be exposed through b. Therefore, on the back surface side (upper surface side) of the upper support body 2, flat plate-like connection plates 3 made of a conductor are bridged between the current collecting terminals 1a and 1b adjacent in the column direction, and the bolts 4 and 4 are connected. Screw it in,
On the back surface side (downward surface side) of the lower support body 2, similar connection plates 3 are laid across adjacent current collecting terminals 1a and 1b across rows, and screwed with bolts 4 and 4. As shown in FIG. 6, six cylindrical batteries 1 are provided between the positive and negative electrode current collector terminals 1a and 1b exposed in the two electrode holes 2b of the upper support 2 to which the connection plate 3 is not attached. Will be all connected in series. The screwing of the connecting plate 3 with the bolts 4 is carried out by inserting the male screw portions of the bolts 4 into the screw holes formed at both ends of the connecting plate 3, respectively.
It is performed by screwing into the female screw hole of the connection surface of 1b. At this time, as shown in FIG. 7, both collector terminals 1a,
Since the connection surface of 1b is substantially flush with the back surface of the support 2,
The flat connecting plate 3 can be arranged as it is in a parallel position almost in contact with the back surface of the supporting body 2 and screwed with a bolt 4. Further, by screwing these connecting plates 3, the upper and lower supports 2 and 2 are fixed integrally with the six cylindrical batteries 1.

In this way, the battery holder holding the six cylindrical batteries 1 by the pair of supports 2 and 2 has a cylindrical shape through the vent holes 2c of each support 2 as shown by the arrows in FIG. Since it is possible to ventilate between the vicinity of the peripheral side surface facing the inside of the battery cell 1 and the outside, the heat generated from the cylindrical battery 1 can be quickly released to the outside. Further, the peripheral side surfaces of the cylindrical batteries 1 arranged in two rows, which face outward, are exposed to the outside as they are between the upper and lower supports 2 and 2, so that heat can be released from here as well. Therefore, by promoting the heat radiation of the cylindrical battery 1 by the air holes 2c and the like, it is possible to suppress the temperature rise of the cylindrical battery 1 and prevent it from exceeding the predetermined range. In addition to natural convection, the ventilation of the ventilation holes 2c may be performed by using a fan or the like to force ventilation, especially when the amount of heat generated is large.

In addition, the pair of supports 2 and 6 are used to
As shown in FIG. 9, when a plurality of battery holders holding the cylindrical batteries 1 are arranged side by side, the concave grooves 2d formed on the side surfaces of the adjacent support bodies 2 facing each other are aligned with each other to pass through. A penetrating portion 5 similar to the pore 2c is formed.
Therefore, even when a large number of cylindrical batteries 1 are densely packed in this way, heat can be radiated from the penetrating portions 5 of the recessed grooves 2d, and there is no fear that the heat dissipation effect will be reduced. . Further, at the corners where the four battery holders are in contact, the rounded portions 2e at the corners of each support 2 are combined to form the penetrating portion 6, so that heat can be similarly radiated from the penetrating portion 6.

In the case where the corner support 2e at the four corners of the rectangular support 2 is replaced by a corner groove 2g cut into a circular arc concave shape as shown in FIG. 10, four battery holders are in contact with each other. Since the penetrating portion 6 of the corner portion is a cylindrical hole similar to the ventilation hole 2c as shown in FIG. 11, the original ventilation hole 2c and the concave groove 2d
It is possible to match the shape with the penetrating portion 5 in which

Next, as shown in FIG. 12, the peripheral end of the surface of the support 2 opposite to the facing surface, the ventilation hole 2c, and the ventilation groove 2d.
The protrusion 2f may be formed so as to project at the same height on the peripheral edge of the edge or the peripheral edge of the rounded portion 2e. In this way, by providing the protrusion 2f, it is possible to prevent rotation when removing the connection plate 3 to prevent a short circuit with an adjacent battery, and also to prevent a short circuit when stacking the assembled batteries. . still,
The protrusion 2f does not have to be provided on the entire peripheral portion, and may be appropriately provided on a few places of the support 2.

Further, in the above embodiment, a plurality of battery holes 2a are provided.
The ventilation holes 2c are provided at appropriate places between the battery holes 2a and the battery holes 2a. However, as shown in FIG. 13, instead of the ventilation holes 2c, the ventilation holes 2c are provided at appropriate places on the inner peripheral surfaces of the battery holes 2a and the electrode holes 2b. A ventilation groove 2h may be provided that extends from the opposite surface to the opposite side.

In this embodiment, the battery holder for holding the six cylindrical batteries 1 has been described.
Is arbitrary. At this time, the battery hole 2a of each support 2
Etc. are appropriately drilled according to the number and arrangement of the cylindrical batteries 1. In this embodiment, as shown in FIGS. 6 and 9, the conductive parts such as the connection plate 3 and the bolt 4 are exposed, but after connecting the cells, this part is covered with an insulating material or the like. As a result, it is possible to prevent the risk of accidentally short-circuiting the batteries.

[0028]

As is apparent from the above description, according to the battery holder of the present invention, the heat generated from each cylindrical battery is passed through the vent holes of each support and the exposed side surfaces between the pair of upper and lower supports. Since it can be released to the outside, the temperature rise of these cylindrical batteries can be suppressed by natural convection or by performing forced ventilation. Further, even when a plurality of battery holders holding a cylindrical battery with a pair of supports are arranged side by side, heat can be released to the outside through the groove between the adjacent supports, so that a large number of cylindrical batteries can be used. Even if they are densely packed, the temperature rise can be surely suppressed. Further, even when the collecting terminals provided on the cylindrical battery have different heights depending on the polarities, it is possible to easily connect the collecting terminals with a flat plate-like connecting body.

[Brief description of drawings]

1 is an assembled perspective view of a battery holder, showing an embodiment of the present invention.

FIG. 2 shows an embodiment of the present invention and is a plan view of a support.

FIG. 3 is a sectional view taken along the line AA of FIG. 2, showing an embodiment of the present invention.

FIG. 4 is a sectional view taken along the line BB of FIG. 2, showing an embodiment of the present invention.

FIG. 5 shows an embodiment of the present invention, and is an assembled perspective view when the connection plate is screwed to the battery holder.

FIG. 6 shows an embodiment of the present invention and is a perspective view of a battery holder.

7 is a sectional view taken along the line CC in FIG. 6, showing an embodiment of the present invention.

FIG. 8 shows an embodiment of the present invention and is a cross-sectional view taken along the line DD of FIG.

FIG. 9 shows an embodiment of the present invention and is a partial perspective view when a plurality of battery holders are arranged.

FIG. 10 shows an embodiment of the present invention and is a plan view showing another shape of the support.

FIG. 11 shows an embodiment of the present invention.
FIG. 6 is a partial plan view showing a corner portion when a plurality of supports shown in FIG.

FIG. 12 is a perspective view showing an embodiment of the present invention, in which a protrusion is formed on the peripheral portion of the surface opposite to the opposing surface of the support and the peripheral portion of the ventilation hole or the ventilation groove. Is.

FIG. 13 shows an embodiment of the present invention, and is a perspective view in the case where ventilation grooves are provided on the inner peripheral surfaces of the battery hole and the electrode hole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical battery 1a Current collecting terminal 1b Current collecting terminal 2 Support 2a Battery hole 2b Electrode hole 2c Vent hole 2d Recessed groove 2e Rounded portion 2f Projection 2g Corner groove 2h Vented groove

Claims (5)

[Claims] 1. A predetermined depth, which comprises a pair of upper and lower plate-like supports, and into which the positive-side or negative-side sealed portion of a sealed battery sandwiched by the pair of supports is fitted to the opposing surfaces of the respective supports. A plurality of battery holes are formed, and an electrode hole penetrating to the opposite side of the facing surface is opened in a part of the bottom surface of each battery hole, and the facing surface is provided at an appropriate position between the plurality of battery holes. The battery holder is characterized in that a vent hole is opened from the to the opposite side. 2. A predetermined depth, which comprises a pair of upper and lower plate-shaped supports, and into which the positive-side or negative-side sealed portions of the sealed battery sandwiched by the pair of supports are fitted to the opposing surfaces of the respective supports. A plurality of battery holes are formed, and an electrode hole penetrating to the opposite side of the facing surface is opened in a part of the bottom surface of each battery hole, and the plurality of battery holes and the inner peripheral surface of the electrode hole are formed. A battery holder, characterized in that a ventilation groove is formed at an appropriate location from the opposite surface to the opposite side. 3. The battery holder according to claim 1, wherein a concave groove extending from the facing surface to the opposite side is formed at an appropriate position on the side surface of each of the supports. 4. The sealed battery is provided with current collecting terminals having different heights on the positive electrode side and the negative electrode side, respectively, and
The battery according to any one of claims 1 to 3, wherein the battery holes adjacent to each other are formed at different depths by a height difference due to the polarity of the current collecting terminal. holder. 5. A protrusion is formed on one or both of a peripheral end of a surface of each support opposite to a facing surface and a peripheral portion of a ventilation hole or a ventilation groove. The battery holder according to any one of claims 1 to 4.