JP6144467B2 - Battery housing device - Google Patents

Description

  The present invention relates to a battery accommodating device in which a plurality of batteries are arranged and accommodated in a row, and a partition part and an intermediate electrode are provided to partition each battery.

  As an electronic device that operates on a cylindrical battery (dry battery or rechargeable battery) such as single to single 6 type, for example, a measuring device such as a portable multimeter, a portable wattmeter, or a remote control transmitter (remote controller) of a television Transmitter) and digital camera. In these electronic devices, in order to facilitate battery replacement, for example, a battery housing portion that can be opened and closed with a lid is provided on the back and bottom surfaces of the apparatus.

  When such an electronic device is accidentally dropped or bumped, there is a problem that the battery jumps out of the housing portion due to the impact. In particular, when the batteries are accommodated in series, a plurality of batteries are biased in the column direction due to the spring property of the electrodes, which makes it easier to pop out.

  For example, in Patent Document 1, a partition part (protrusion part) is provided between the batteries accommodated in a line, an intermediate electrode is arranged there, and the batteries are urged one by one by an electrode spring. A battery container that makes it difficult to eject the battery is described. The intermediate electrode of this battery container is formed by a conical spiral coil electrode for the negative electrode and a flat spiral plane part for the positive electrode. Although there is no detailed description in this document, this intermediate electrode is formed by winding one wire around a coil electrode and a plane spiral plane part, or a coil electrode and a plane spiral plane part. Are formed by separate members and connected by soldering or electric wires.

JP 2005-174628 A

  When the intermediate electrode is formed of, for example, one member, the shape becomes complicated, so that advanced technology is required for manufacturing, and the cost of the intermediate electrode increases. Also, when the intermediate electrode is composed of two separate members and they are connected by soldering, etc., the shape becomes simple and the cost of the intermediate electrode is reduced. It takes time.

  The present invention has been made to solve the above-described problems, and can reduce the cost of the intermediate electrodes arranged between the batteries arranged in a row, and can be easily assembled in a short time. It aims at providing a battery accommodating apparatus.

The battery accommodating device according to claim 1, which has been made to achieve the above object,
A battery accommodating device in which a partition part for partitioning the batteries is provided in a housing part in which a plurality of batteries are accommodated in a row, and an intermediate electrode for connecting the batteries in series is disposed in the partition part The intermediate electrode is a flat portion on the back side with respect to the front side where one of the plates contacts the positive electrode of the battery, out of the two conductive plates formed separately. a positive electrode are formed over a substrate made of a negative electrode formed flat portion on the rear side with respect to the front side of the other of the plate is in contact with the negative electrode of the battery, the positive electrode electrode and the negative electrode electrodes At least one of the positive electrode and the negative electrode inserted into the groove of the partition portion on the front side of at least one of the positive electrode and the negative electrode has an elastic body that urges the battery. Projections to hold flat parts in contact with each other Characterized in that it is formed to project.

The battery housing device according to claim 2 is the device according to claim 1, wherein the protrusion is on each front side of the positive electrode and the negative electrode, and the positive electrode and the negative electrode And are formed at positions where they are back to back .

The battery accommodating device described in claim 3 is the one described in claim 1 or 2 , wherein each of the positive electrode and the negative electrode is on the left and right sides of the center line when viewed from the front side. A reverse insertion preventing claw is formed at a position on one side of the asymmetrical shape, and a reverse insertion preventing hole corresponding to the reverse insertion preventing claw is formed in the partition portion.

The battery accommodating device described in claim 4 is the one described in claim 3 , and the reverse insertion preventing claw formed on each of the positive electrode and the negative electrode includes the positive electrode and the negative electrode. Are formed so as to overlap at the same position, and the reverse insertion prevention hole into which the superimposed reverse insertion claw is inserted is formed in the partition portion. To do.

A battery housing device according to a fifth aspect is the device according to any one of the first to fourth aspects, wherein the positive electrode and the negative electrode are retained in the retaining holes of the partition portion. It has a pawl .

The battery accommodating device described in claim 6 is provided with a partition part for partitioning each battery in a housing part in which a plurality of batteries are accommodated in a row , and the batteries are connected in series to the partition part. An intermediate electrode for the battery, wherein the intermediate electrode has two conductive plates formed as separate members, one of the plates being the positive electrode of the battery. A positive electrode in which a flat part is formed on the back side with respect to the front side in contact, and a negative electrode in which a flat part is formed on the back side with respect to the front side in which the other side of the plate contacts the negative electrode of the battery Each of the positive electrode and the negative electrode has an asymmetric shape with a reverse insertion prevention claw formed at one position on the left and right sides of the center line when viewed from the front side, and the reverse difference An anti-reverse hole corresponding to the anti-claw is formed in the partition part. In addition, at least one of the positive electrode and the negative electrode has an elastic body that urges the battery, and the flat portions are held in contact with each other in a groove formed in the partition portion. The positive electrode and the negative electrode are overlapped and inserted .

According to the battery accommodating device of the present invention, since the positive electrode and the negative electrode of the intermediate electrode are formed on the two conductive plates , each shape becomes a simple shape. It will be something. Furthermore, since the positive electrode and the negative electrode are brought into electrical contact with each other by the urging force of the elastic body, it is not necessary to connect the positive electrode and the negative electrode by, for example, soldering or a connector, and it can be easily performed in a short time. Can be assembled. In addition, the positive electrode and the negative electrode have a flat surface for bringing them into contact with each other, and can be electrically and reliably connected.

Further, the positive electrode and the negative electrode are overlapped so that the flat portions thereof are held in contact with each other, and are inserted and held in grooves formed in the partition portion, so that they can be assembled more easily.

In the case of having a protrusion on the front side of at least one of the positive electrode and the negative electrode for bringing the flat part of the positive electrode and the negative electrode inserted into the groove of the partition part into contact with each other, in particular, the protrusion is When the positive electrode and the negative electrode are overlapped on the front side of the positive electrode and the negative electrode when they are overlapped with each other, they can be electrically and reliably connected. .

Each of the positive electrode and the negative electrode, the center line and the reverse insertion preventing claw is formed on one side position of the left and right side, preventing reverse insertion holes corresponding to the reverse insertion preventing claw is formed in the partition portion In particular, when the positive electrode and the negative electrode are overlapped, the reverse insertion prevention claw formed on each of the positive electrode and the negative electrode is formed so as to overlap at the same position. If a reverse insertion prevention hole is inserted in the partition , the positive electrode and the negative electrode will be attached to the partition because the shapes do not match even if you try to hold the positive electrode and negative electrode in the partition in the opposite direction. I can't. Therefore, the positive electrode and the negative electrode can be attached to the partition portion in the correct direction.

If the positive electrode and negative electrode have retaining claws that are locked in the locking holes of the partition, each electrode will not fall out of the partition and can be held by the partition even if there is an impact such as vibration. Can be maintained.

It is a rear view of the portable multimeter which is an example of the battery accommodating apparatus to which this invention is applied. It is the (a) front view, (b) side view, and (c) perspective view which show the positive electrode among the intermediate electrodes used for this invention. It is the (a) front view, (b) side view, and (c) perspective view which show the negative electrode of the intermediate electrodes used for this invention. It is a principal part expansion perspective view which expands and shows the part of a partition part and an intermediate electrode. It is the sectional view on the AA line of FIG. It is a cross-sectional view of the groove part of a partition part. It is a perspective view of the back side which shows another example of a negative electrode. It is a perspective view which shows another example of a negative electrode.

  Hereinafter, although the form for implementing this invention is demonstrated in detail, the scope of the present invention is not limited to these forms.

  FIG. 1 shows a rear view of a portable multimeter 1 that is an example of the battery accommodating device of the present invention. This multimeter 1 has a rectangular parallelepiped housing 2 as an example. On the back surface (viewing surface side in the figure) of the housing 2, as an example, in order to accommodate four AA batteries 90a to 90d (hereinafter also simply referred to as the battery 90), a recess is formed in a substantially rectangular parallelepiped room shape. The bent housing portion 3 is formed of resin integrally with the housing 2. The accommodating part 3 is formed in a shape that can accommodate two batteries 90 arranged in series per line and can accommodate the two lines. In the figure, an example is shown in which the battery 90a and the battery 90b are arranged in a line, and the battery 90c and the battery 90d are arranged in a line.

  The opening of the housing 3 is opened and closed by a removable lid (not shown). A notch hole 51 formed near one end (downward in the figure) of the accommodating part 3 is a hole for hooking a claw formed in the lid, and the other end (upper in the figure) of the accommodating part 3. The screw hole 52 formed in the vicinity of) is a hole for screwing the lid.

  The housing 3 includes positive electrodes 11 and 13, negative electrodes 12 and 14, a partition 4, a battery support wall 5, and intermediate electrodes 6 a and 6 b.

  The positive electrode 11 is in contact with the positive electrode of the battery 90a, and the positive electrode 13 is a conductive plate with a convex portion in contact with the positive electrode of the battery 90c. The negative electrode 12 is a conductive plate with a coil spring in contact with the negative electrode of the battery 90b, and the negative electrode 14 is in contact with the negative electrode of the battery 90d. Since the positive electrodes 11 and 13 and the negative electrodes 12 and 14 are the same as those used in the conventional battery housing device, detailed description thereof is omitted. The negative electrode 12 and the positive electrode 13 are electrically connected inside the apparatus, and the batteries 90a to 90d are electrically connected in series.

  The partition part 4 is for partitioning the two batteries 90 arranged in a line and holding the intermediate electrodes 6a and 6b. The partition part 4 is formed of resin integrally with the housing part 3. The structure of the partition part 4 will be described later.

  The battery support wall 5 is for supporting the batteries 90 so that the batteries 90 do not shift laterally with respect to the rows. As an example, as shown in FIG. 4, the battery support wall 5 is formed in an arc shape having a diameter substantially the same as the cylindrical diameter of the battery 90 in contact with the battery 90. The battery support wall 5 is formed of resin integrally with the housing portion 3.

  The intermediate electrode 6a is for electrically connecting the batteries 90a and 90b in series. The intermediate electrode 6b is for electrically connecting the batteries 90c and 90d in series. The intermediate electrode 6a and the intermediate electrode 6b are each composed of a positive electrode 7 and a negative electrode 8.

  The positive electrode 7 is shown in FIG. 2A is a front view of the positive electrode 7, FIG. 2B is a side view of the positive electrode 7, and FIG. 2C is a perspective view of the positive electrode 7.

As an example, the positive electrode 7 is a conductive plate in which a brass plate is plated with nickel. Although the outer shape of the positive electrode 7 can be formed in an arbitrary shape, the figure shows an example in which the positive electrode 7 is formed in a square shape. On the flat plate-like positive electrode 7, a convex portion 21, a raised ridge portion 22, a retaining claw 23 , and a reverse insertion preventing claw 24 are formed.

The convex portion 21 is formed by raising the central portion of the plate-like positive electrode 7 to the front side so that it can easily come into contact with the positive electrode of the battery 90. The fixing raised portion 22 is formed by raising the left and right sides of the positive electrode 7 in a circular arc shape on the front side. The retaining claws 23 are cut and raised on the front side so that the upper side opens on both the left and right sides of the lower side (the lower side of the figure) of the positive electrode 7. The reverse insertion preventing claw 24 protrudes so that the lower side of the positive electrode 7 extends downward. The reverse insertion preventing claw 24 is formed so as to be positioned on the left side of the center line C as an example so that the positive electrode 7 has an asymmetric shape. As shown in FIG. 2B, nothing protrudes from the back surface side of the positive electrode 7, and the portions other than the protruding portions 21 and the like protruding to the front surface are flat surfaces.

  As an example, the positive electrode 7 is manufactured by press working in which a plate material is punched with a die, bent, or raised. At the time of this pressing, the convex part 21 to the reverse insertion preventing claw 24 are simultaneously formed together with the outer shape of the positive electrode 7.

  The negative electrode 8 is shown in FIG. 3A is a front view of the negative electrode 8, FIG. 3B is a side view of the negative electrode 8, and FIG. 3C is a perspective view of the negative electrode 8.

  As an example, the negative electrode 8 is formed by attaching a conductive conical spiral coil spring 31 made of nickel-plated steel wire or the like to a conductive plate 30 in which a brass plate is nickel-plated. . The plate 30 is preferably formed in a shape that matches the outer shape of the positive electrode 7, and the figure shows an example in which the plate 30 is formed in a square shape. As an example, the coil spring 31 is fixed by caulking the plate 30 at a substantially central portion of the front surface of the plate 30 so that the back side of the plate 30 does not protrude. The coil spring 31 is an example of an elastic body, and is for contacting the negative electrode of the battery 90 while energizing the battery 90.

The flat plate 30 is formed with fixing ridges 32, retaining claws 33 , and reverse insertion preventing claws 34. These are formed by pressing as an example.

The fixing raised portion 32 is obtained by raising the left and right sides of the negative electrode 8 in a circular arc shape on the front side. The fixing ridge 32 is preferably formed at the same position and size as the fixing ridge 22 of the positive electrode 7. The retaining claws 33 are cut and raised on the front side so that the upper side opens on the left and right sides of the lower side (lower side of the drawing) of the negative electrode 8. The reverse insertion preventing claw 34 is protruded so as to extend the lower side of the negative electrode 8 downward. The reverse insertion preventing claw 34 is formed so as to be positioned on the right side of the center line D as an example so that the positive electrode 7 has an asymmetric shape. When the positive electrode 7 and the negative electrode 8 are stacked back to back (when the back surfaces are stacked), the reverse insertion preventing claw 24 of the positive electrode 7 and the reverse insertion preventing claw 34 of the negative electrode 8 are in the same position. It is preferable to form so that it may overlap. As shown in FIG.3 (b), nothing protrudes in the back side of the board 30, and parts other than the protruding protruding part 32 etc. which protrude in the front side are flat surfaces.

  In FIG. 4, the expansion perspective view of the partition part 4 of the accommodating part 3 and intermediate electrode 6a, 6b part is shown. In the same figure, the battery 90 is not accommodated.

  The partition portion 4 is formed with a groove 41a for sandwiching and holding the left and right sides of the positive electrode 7 and the negative electrode 8 that become the intermediate electrode 6a. Further, the partition part 4 is formed with a notch part 42 in which the convex part 21 of the positive electrode 7 and the coil spring 31 of the negative electrode 8 are notched so as to be in contact with the battery 90 (see FIG. 1). .

  Further, the partition portion 4 is formed with a groove 41b for holding the positive electrode 7 and the negative electrode 8 that become the intermediate electrode 6b, and a notch portion 42. As shown in the figure, the intermediate electrode 6a and the intermediate electrode 6b are different from each other only in using the superimposed positive electrode 7 and negative electrode 8 in opposite directions. The structure of the partition part 4 to hold | maintain is demonstrated and the description regarding the intermediate electrode 6b is abbreviate | omitted.

  FIG. 5 is a cross-sectional view taken along line AA in FIG. 4 (vertical cross-sectional view of the groove 41a).

  As shown in FIG. 5, the positive electrode 7 and the negative electrode 8 that become the intermediate electrode 6 a are inserted into the grooves 41 a of the partition portion 4 in a state where they are stacked back to back (an example of a state where they can be contacted). The groove 41a is preferably formed with a groove width that just sandwiches or slightly deflects the fixing raised portions 22 and 32 of the overlapping positive electrode 7 and negative electrode 8. By forming the groove 41a with such a groove width, rattling of the positive electrode 7 and the negative electrode 8 can be prevented.

  When the batteries 90a and 90b are accommodated (see FIG. 1), the coil spring 31 of the negative electrode 8 is compressed, so that the negative electrode 8 is strongly pressed against the positive electrode 7 by the biasing force. Therefore, the positive electrode 7 and the negative electrode 8 are electrically and reliably connected, and the batteries 90a and 90b (see FIG. 1) are connected in series.

  When the groove width of the groove 41a is slightly larger than the width for sandwiching the fixing ridges 22 and 32, or when there are no fixing ridges 22 and 32, the positive electrode 7 and the negative electrode 8 are within the groove 41a. As described above, since the coil spring 31 is compressed by accommodating the battery 90a as described above, the positive electrode 7 and the negative electrode 8 are strongly pressed against each other and come into contact with each other. The positive electrode 7 is pressed against the positive electrode of the battery 90b. Therefore, the positive electrode 7 and the negative electrode 8 are electrically and reliably connected, and the batteries 90a and 90b (see FIG. 1) are connected in series. That is, the positive electrode 7 and the negative electrode 8 are grooved in such a state that when the urging force is generated in the coil spring 31 by accommodating the battery 90a, the back surfaces (contact portions) of the positive electrode 7 and the negative electrode 8 are pressed against each other. It is only necessary to be inserted into 41a, and when the batteries 90a and 90b are not accommodated, the back surfaces of each other may not be in close contact with each other.

  When the groove 41a is formed with a groove width as shown in FIG. 5 that can prevent rattling of the positive electrode 7 and the negative electrode 8, the contact state between the back surfaces of the positive electrode 7 and the negative electrode 8 is always maintained. Therefore, it is preferable because the positive electrode 7 and the negative electrode 8 are always electrically connected. When the fixing ridges 22 and 32 are formed at the same position where they are back to back, the positive electrode 7 and the negative electrode 8 are strongly pressed against each other, which is more preferable because electrical connection is further ensured. Since the back surfaces of the positive electrode 7 and the negative electrode 8 are formed as flat surfaces, they are in surface contact. For this reason, the electrical connection is stable and reliable.

  At the time of assembly, the positive electrode 7 and the negative electrode 8 need only be overlapped and inserted into the groove 41a. Since connection work such as soldering is not necessary, it can be easily assembled in a short time.

  Since the positive electrode 7 and the negative electrode 8 (plate 30) are electrically connected by contact, it is preferable to manufacture using the same kind of metal that is difficult to oxidize and the same kind of surface treatment (for example, nickel plating on the surface).

In the partition portion 4, a locking hole 45 is formed at a position corresponding to the retaining claw 23 , and a locking hole 46 is formed at a position corresponding to the retaining claw 33 . In the state where the positive electrode 7 and the negative electrode 8 are overlapped, the retaining claws 23 and 33 are cut and raised so as to be wider than the groove width of the groove 41 a, so that the retaining claws 23 and 33 are engaged with the locking holes 45. 46, the positive electrode 7 and the negative electrode 8 are prevented from coming off from the groove 41a. The locking holes 45 and 46 may be formed as through holes that penetrate the partition portion 4.

  In FIG. 6, the cross-sectional view of the groove 41a part of the partition part 4 is shown. This figure shows a state before the positive electrode 7 and the negative electrode 8 are inserted into the groove 41a. The negative electrode 8 is superimposed on the back side (the back side in the figure) of the positive electrode 7 and is hidden in the figure.

  As shown in the figure, a reverse insertion prevention hole 48 is formed at a position corresponding to the reverse insertion prevention claw 24 of the positive electrode 7 and the reverse insertion prevention claw 34 of the negative electrode 8 at the bottom of the groove 41a of the partition portion 4. Is formed. In this example, the reverse insertion prevention hole 48 is located on the left side of the drawing from the center of the groove 41a. For this reason, if the positive electrode 7 and the negative electrode 8 are in the correct orientation, the reverse insertion prevention claws 24 and 34 are inserted through the reverse insertion prevention hole 48 to the back. 34 are in contact with the bottom of the groove 41a and are not inserted all the way. This prevents reverse insertion.

  As mentioned above, although the multimeter 1 was demonstrated as an example of the battery accommodating apparatus of this invention, this invention is applicable to the various electronic devices which operate | move with a battery. In addition, the present invention can be preferably applied to an apparatus that accommodates single to single 6 type dry batteries, but can be applied to any apparatus that accommodates batteries arranged in series such as a button type battery. is there.

  In addition, although the example in which the positive electrode 7 and the negative electrode 8 are in contact with each other on a flat surface has been described, a protrusion for bringing the positive electrode 7 and the negative electrode 8 into contact with each other may be formed on at least one of the positive electrode 7 and the negative electrode 8. Whether contact is made by surface contact, line contact, or point contact may be appropriately selected depending on the relationship between the shape and size of the electrodes 7, 8 and contact resistance.

  FIG. 7 shows a perspective view of the back surface side of the negative electrode 8a provided with a protrusion. As examples of the protrusions, a convex portion 61 that protrudes in a convex shape on the back side of the plate 30 (observation surface side in the figure), a rising portion 62 that cuts and raises the plate 30 on the back side, and an arch shape of the plate 30 A raised portion 63 raised is shown in FIG. These are merely examples, and the type, size, shape, and number of the protrusions are arbitrary. The groove width of the groove 41a (see FIG. 4) is determined in consideration of the protruding length of the protrusion.

  Further, the example in which the positive electrode 7 and the negative electrode 8 are inserted and held in the common groove 41a has been described. For example, the left and right sides of the positive electrode 7 and the negative electrode 8 are bent in an L shape on the front side. The bent portions may be inserted into different grooves and fixed. The structure in which the positive electrode 7 and the negative electrode 8 are held in the partition portion 4 in this way may be another structure.

  In addition, the positive electrode 7 and the negative electrode 8 are not provided with the fixing ridges 22 and 32, but a plate spring or the like made of resin is formed on the partition 4 side to hold the positive electrode 7 and the negative electrode 8. May be.

  Further, although the example in which the negative electrode 8 has the coil spring 31 as an elastic body has been shown, the plate spring 31a may be formed by cutting and raising the plate 30 as an elastic body as in the negative electrode 8b shown in FIG. . As the structure of the elastic body such as the coil spring 31 or the leaf spring 31a that urges the battery 90, various known elastic bodies can be adopted. Further, it is sufficient that at least one of the positive electrode 7 and the negative electrode 8 has an elastic body. For example, a known elastic body is provided instead of the convex portion 21 of the positive electrode 7, and the positive electrode 7 is provided with the battery 90. You may make it rush. Moreover, as long as it is the structure hold | maintained at the partition part 4 in the state which can contact the positive electrode 7 and the negative electrode 8, both the electrodes 7 and 8 may not be plate shape. For example, the positive electrode 7 may have a plate shape, and the negative electrode 8 may include only the coil spring 30 that does not include the plate 30.

  Further, the positive electrode 7 and the negative electrode 8 may be used for the positive electrodes 11 and 13 and the negative electrodes 12 and 14 other than the intermediate electrodes 6a and 6b. In this way, the cost can be further reduced by using the electrodes in common.

1 is a portable multimeter, 2 is a housing, 3 is a housing part, 4 is a partition part, 5 is a battery support wall, 6a and 6b are intermediate electrodes, 7 is a positive electrode, 8 and 8a and 8b are negative electrodes, 11 13 is a positive electrode, 12 and 14 are negative electrodes, 21 is a convex portion, 22 is a raised ridge, 23 is a retaining claw , 24 is a reverse insertion preventing claw, 30 is a plate, 31 is a coil spring, and 31a is a plate Spring, 32 is a fixing ridge, 33 is a retaining claw , 34 is a reverse insertion prevention claw, 41a and 41b are grooves, 42 is a notch, 45 and 46 are locking holes, 48 is a reverse insertion prevention hole, 51 Is a notch hole, 52 is a screw hole, 61 is a convex part, 62 is a raised part, 63 is a raised part, 90a, 90b, 90c, and 90d are batteries, and CD is a center line.

Claims (6)

A battery accommodating device in which a partition part for partitioning the batteries is provided in a housing part in which a plurality of batteries are accommodated in a row, and an intermediate electrode for connecting the batteries in series is disposed in the partition part Because
The intermediate electrode has a flat portion formed on the back side with respect to the front side where one of the plates is in contact with the positive electrode of the battery among the two conductive plates formed separately. a positive electrode are the other of the plate is composed of a negative electrode formed flat portion on the rear side with respect to the front side in contact with the negative electrode of the battery, at least one of the of the positive-pole electrode and the negative electrode electrodes Having an elastic body to urge the battery,
In addition, a protrusion for protruding and holding the positive electrode and the flat portion of the negative electrode, which are inserted into the groove of the partition portion, protrudes on the front side of at least one of the positive electrode and the negative electrode. A battery housing device characterized by being formed . The protruding portion is formed on each front side of the positive electrode and the negative electrode at a position where the positive electrode and the negative electrode are back to back when the positive electrode and the negative electrode are overlapped. The battery accommodating device according to 1 . Each of the positive electrode and the negative electrode, when viewed from the front, the center line in the reverse insertion preventing claw is formed on one side position of the left and right side are asymmetrical, the reverse insertion preventing claw corresponding battery accommodating device according to claim 1 or 2 preventing reverse insertion hole, characterized in that it is formed in the partition portion. The reverse insertion preventing claws formed on each of the positive electrode and the negative electrode are formed so as to overlap at the same position when the positive electrode and the negative electrode are overlapped with each other. The battery accommodating device according to claim 3 , wherein the reverse insertion preventing hole into which the reverse insertion preventing claw is inserted is formed in the partition portion . 5. The battery accommodating device according to claim 1, wherein the positive electrode and the negative electrode have retaining claws that are retained in the retaining holes of the partition part. A battery accommodating device in which a partition part for partitioning the batteries is provided in a housing part in which a plurality of batteries are accommodated in a row, and an intermediate electrode for connecting the batteries in series is disposed in the partition part Because
The intermediate electrode has a flat portion formed on the back side with respect to the front side where one of the plates is in contact with the positive electrode of the battery among the two conductive plates formed separately. And a negative electrode having a flat portion formed on the back side with respect to the front side where the other of the plates contacts the negative electrode of the battery,
Each of the positive electrode and the negative electrode has an asymmetric shape with a reverse insertion preventing claw formed at one position on the left and right sides of the center line when viewed from the front side. A corresponding reverse insertion prevention hole is formed in the partition,
And at least one of the positive electrode and the negative electrode has an elastic body that biases the battery,
The battery accommodating device , wherein the positive electrode and the negative electrode are overlapped and inserted into a groove formed in the partition portion so that the flat portions are held in contact with each other .

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