JP2012182027A - Connector of battery cells and battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector of battery cells which enables easy connection work of electrode terminals, secures connection force for connecting with the electrode terminals, and obtains stable electric conductivity.SOLUTION: A connector 100 of battery cells of this invention includes: a first member 110 having two installation parts 111 and a connection part 112 connecting the installation parts 111; and a second member 120 having a pair of holding parts 121a and a connection part 122 connecting the pair of the holding parts 121a. After the first member is attached to an electrode terminals 210 and 220 of the battery cell 200, the second member is fitted into the first member. Then, the two installation parts are pressed inward in the lateral direction by the pair of holding parts to be elastically deformed, and two electrode terminal housing spaces are narrowed in the lateral direction. The battery module M of this invention includes the connector and the battery cells.

Description

  The present invention relates to a technical field of a connector for connecting two battery cells and a battery module to which the battery cells are connected.

  Patent Document 1 discloses a cell connection bar 4 for connecting battery cells 10 to 19 in series. The connection holes provided at both ends of the cell connection bar 4 are aligned with the screw holes of the negative electrode terminal 101 and the positive electrode terminal 103 which are adjacent to each other. The cell connection bar 4 is fixed to the negative electrode terminal 101 and the positive electrode terminal 103 by being screwed into the screw holes of the terminal 103 (reference numerals are cited from Patent Document 1).

  Patent Document 2 discloses a lithium secondary battery 3 in which adjacent positive electrode terminals 17 and negative electrode terminals 21 are connected in series by being connected by a bus bar 29. The bus bar 29 is formed in the main body 31, which is a main body 31 that is a substantially rectangular plate-shaped body, a pair of contact portions 33 formed in the main body 31, a pair of slits 35 formed in the main body 31. A pair of screw holes 37 and fastening bolts 39 are provided (reference numerals are cited from Patent Document 2).

  Patent Document 3 discloses a joint terminal 10 that connects electrode terminals 21 of adjacent battery cells 20. The joint terminal 10 includes a pair of connection portions 11A and 11B that are respectively connected to the electrode terminal 21, and the connection portions 11A and 11B are at both ends in a direction substantially orthogonal to the connection direction with respect to the electrode terminal 21. At least one has a pair of opposed walls 12 connected to each other, and the pair of opposed walls 12 is set so as to elastically contact the electrode terminal 21 inserted between them (reference numeral is the above-mentioned patent). (Reference 3).

Japanese Patent Laid-Open No. 9-237617 JP 2009-277393 A JP 2010-123391 A

  In order to connect the cell connection bar 4 disclosed in Patent Document 1 to the negative terminal 101 and the positive terminal 103, the bolt 5 must be screwed into the screw holes of the negative terminal 101 and the positive terminal 103. Don't be. Further, in order to connect the positive electrode terminal 17 and the negative electrode terminal 21 adjacent to each other with the bus bar 29 disclosed in Patent Document 2, the fastening bolt 39 must be tightened. In any case, since the bolt tightening work is required in this way, there is a problem that the work for connecting the electrode terminals takes a lot of man-hours. When the number of the battery cells increases, the man-hours required for the bolt tightening work increase accordingly. In addition, when the bolt tightening force is not sufficiently managed and varies, the electric conductivity is not stable, and the bolt may come off.

  The joint terminal 10 disclosed in Patent Document 3 is configured so that the electrode terminal 21 is inserted between the pair of opposing walls of the connection portions 11A and 11B, and the joint terminal 10 is placed on the battery cell side. When pushed in, the opposing wall 12 is in a state of elastically sandwiching the electrode terminal 21. Therefore, since the joint terminal 10 can be connected to the electrode terminal 21 without performing the bolt tightening operation as described above, the man-hour required for the connection operation of the electrode terminal 21 can be reduced accordingly. However, if the pushing force is reduced, the connecting force of the joint terminal 10 to the electrode terminal 21 is not sufficient, and the electrical conductivity is not stable. On the other hand, if the sufficient connection force is obtained, the pushing force becomes excessive and the connection work of the electrode terminals becomes difficult.

  The present invention has been made paying attention to such points, and the object thereof is to provide a first member and a second member, and the first member is provided on the electrode terminal of the battery cell as described above. By connecting the second member to the first member after being easily mounted, the connection force to the electrode terminal is ensured, thereby making it easy to connect the electrode terminal and the electrode terminal. It is an object of the present invention to provide a battery cell connector and a battery module using the battery cell connector that can secure a connecting force to the battery and obtain stable electrical conductivity.

In order to achieve the above object, the connector of the first battery cell of the present invention comprises:
When taking a vertical direction, a horizontal direction, and a thickness direction perpendicular to each other,
The two erected portions that extend in the longitudinal direction and face each other in the lateral direction and have elasticity and the two erected portions are separated from each other in the lateral direction and the thickness between the two erected portions. A first member having a connecting portion for connecting two columnar electrode terminal accommodating spaces extending in a direction so as to be formed apart from each other by a predetermined length in the vertical direction;
The at least one pair of sandwiching portions facing in the lateral direction and the pair of sandwiching portions at each portion along the longitudinal direction, the spacing between the pair of sandwiching portions in the lateral direction is the above when no load is applied. A second member having a connection part connected to be smaller than the lateral dimension of the two erection parts,
When the second member is fitted to the first member so that the pair of holding portions are positioned on both lateral sides of the two installation portions, the two holding portions are installed by the pair of holding portions. The portion is pushed inward in the lateral direction to be elastically deformed, and the two electrode terminal accommodating spaces are configured to narrow in the lateral direction.

  When two battery cells having a pair of electrode terminals with columnar different polarities provided so as to protrude from the end faces in directions parallel to each other are arranged next to each other, the first member is placed on the two battery cells, The electrode terminals of one of the battery cells are accommodated in one electrode terminal accommodating space, and the electrode terminals having a different polarity from that of the other battery cell are accommodated in the other electrode terminal accommodating space. Next, when the second member is fitted to the first member, the two construction parts are pushed inward in the lateral direction by the pair of sandwiching parts and elastically deformed, and the two electrode terminal accommodating spaces are formed. Narrow in the lateral direction. Then, the two erected parts are in contact with the two electrode terminals of the two battery cells with contact pressure, respectively. As a result, the connection force to the two electrode terminals of the connector of the battery cell is obtained. Then, when the second member is removed from the first member so that the paired holding portions are separated from the two laterally outer sides of the two erected portions, the two erected portions are moved outward in the lateral direction. Restoration is performed, the contact pressure is reduced, and the first member can be removed from the two battery cells.

The connector of the second battery cell of the present invention is the connector of the first battery cell,
Each of the electrode terminal accommodating spaces has a pair of column-shaped electrode terminals with different polarities provided so as to protrude from the end face in a direction parallel to each other, and the electrode terminals of two battery cells arranged adjacent to each other. It is formed larger than the space it occupies in the thickness direction,
The predetermined length corresponds to the distance between the electrode terminal of one of the battery cells and the electrode terminal of a different polarity from that of the other battery cell.

  In this way, when the first member is attached to the two battery cells, the two electrode terminals are likely to be accommodated in the two electrode terminal accommodating spaces.

The connector of the third battery cell of the present invention is the connector of the first or second battery cell,
One end in the longitudinal direction of the second member is provided at one end in the longitudinal direction of the first member so as to be rotatable via a pivot shaft extending in the lateral direction.

  If it does in this way, the 2nd member can be fitted to the 1st member by rotating the 2nd member, and the 2nd member can be removed from the 1st member. In addition, when the second member is connected to the first member via the rotation shaft, the first member and the second member are not separated from each other.

The connector of the fourth battery cell of the present invention is the connector of any one of the first to third batteries,
A guide portion provided on the fitting side of the pair of sandwiching portions with the two erected portions in the thickness direction and having a larger inner dimension in the lateral direction toward the distal end in the thickness direction; Among the guide portions that are provided on the fitting side with the pair of sandwiching portions in the thickness direction of the two erection portions and the outer dimension in the lateral direction decreases toward the tip in the thickness direction, At least one is provided.

  In this way, when the second member is fitted to the first member, the pair of sandwiching portions are easily introduced on both lateral sides of the two erection portions by the guide of the guide portion.

The connector of the fifth battery cell of the present invention is the connector of any one of the first to fourth battery cells,
The connection part of the first member is connected to each of the installation parts at least at both ends in the longitudinal direction of the first member, and the two electrode terminal accommodating spaces are formed between these both ends. Has been
One electrode terminal receiving space in one of the installation parts and the connecting portion at the end close to the electrode terminal receiving space are divided to form a free end on the electrode terminal receiving space side. And
The other electrode terminal accommodating space in the other construction part and the connecting portion at the end nearer to the electrode terminal accommodating space are divided to form a free end on the electrode terminal accommodating space side. And
A deformation-permitting space for accommodating the elastically deformed free ends is formed between the free ends and the erection portion facing the free ends.

  According to this configuration, when the free end of the erection part is displaced toward the erection part facing the erection part, the free end comes into contact with the electrode terminal so that the thickness direction is from the thickness direction. Accordingly, the contact length of the erection part with the electrode terminal is increased, and the contact area between the erection part and the electrode terminal is increased.

The connector of the sixth battery cell of the present invention is the connector of any one of the first to fifth batteries,
A protrusion that protrudes in the vertical direction from the first member when the second member is fitted to the first member is provided at an end portion in the vertical direction of the second member.

  If it does in this way, operation which fits the 2nd member in the 1st member with the above-mentioned projection, and operation which removes the 2nd member from the 1st member with the above-mentioned projection are attained.

The connector of the seventh battery cell of the present invention is the connector of any one of the first to sixth batteries,
A locking mechanism is provided for locking the second member to the first member when the second member is fitted to the first member.

  If it does in this way, it will become difficult to remove | deviate from the said 1st member from the said 2nd member by the latching of a latching mechanism.

The eighth battery cell connector of the present invention is the seventh battery cell connector,
The locking mechanism is provided on a convex portion provided on one of the portions facing the lateral direction of the erection portion and the clamping portion when the second member is fitted on the first member, and provided on the other side. And a concave portion into which the convex portion can be fitted.

  If it does in this way, the above-mentioned stop will be performed by fitting of the above-mentioned convex part and the above-mentioned concave part.

The ninth battery cell connector of the present invention is the seventh battery cell connector,
The locking mechanism includes through-holes that are respectively provided in the lateral direction at portions facing the installation portion and the clamping portion when the second member is fitted into the first member; and And a pin that fits into the through hole.

  In this way, the locking is performed by passing the pin through the through hole.

The tenth battery cell connector of the present invention is the seventh battery cell connector,
The locking mechanisms are respectively connected to the paired clamping parts via the laterally rotating shafts outside the paired clamping parts at both ends, and the central part is the paired. Rotation between a retracted position located on the opposite side to the fitting side with the erection part in the thickness direction of the clamping part and a lock position where the center part is engaged with the longitudinal end of the erection part A U-shaped locking member is provided so as to be free.

  In this case, the lock member is engaged with the first member by rotating the lock member from the retracted position to the lock position, and the locking is performed.

The eleventh battery cell connector of the present invention is the seventh battery cell connector,
The locking mechanism includes a recess formed to be recessed in the lateral outer surface at one end in the longitudinal direction of the two erection parts, and the pair when the second member is fitted into the first member. In the sandwiching part that is formed in a through hole that penetrates in the lateral direction provided from the part corresponding to the concave part to the periphery, and a thickness that fits the width of the through hole, And a U-shaped locking member having elasticity and provided with protrusions that protrude inward in the lateral direction and can be fitted into the recesses.

  In this way, when the second member is fitted into the first member, the locking member is inserted into the through hole from the peripheral side of the clamping portion to the portion corresponding to the concave portion. The protruding portion is fitted into the concave portion, whereby the locking is performed.

The battery module of the present invention is
The battery cell connector of any one of the first to eleventh;
Two battery cells arranged side by side having a pair of electrode terminals of columnar different poles provided so as to protrude from the end faces in directions parallel to each other,
The predetermined length corresponds to the distance between the electrode terminal of one of the battery cells and the electrode terminal of a different polarity from that of the other battery cell,
The second member is fitted to the first member so that the paired holding portions are located on both lateral sides of the two erected portions, respectively, and the two erected portions are installed by the paired holding portions. The two electrode terminal accommodating spaces are narrowed in the lateral direction, and the two installation parts are respectively connected to the electrode terminal of the one battery cell and the other. The battery cell is in contact with the electrode terminal having a different polarity from that of the battery cell with a contact pressure.

  According to the first battery cell connector of the present invention, the two electrodes can be formed by simply mounting the first member on the electrode terminals of the two battery cells and then fitting the second member on the first member. Since the connection force to the terminal is ensured, the connection work of the two electrode terminals can be easily performed, the workability can be improved, and the connection force to the two electrode terminals can be secured. And stable electrical conductivity can be obtained. Also, the same effect can be obtained by the battery module of the present invention.

  The connector of the second battery cell according to the present invention is not only capable of obtaining the effect obtained by the connector of the first battery cell, but also the work of attaching the first member to the two battery cells. Can be improved.

  The connector of the third battery cell of the present invention, in addition to obtaining the effect obtained by the connector of the first or second battery cell, in addition, work to fit the second member to the first member, And workability | operativity of the operation | work which removes the said 2nd member from the said 1st member can be improved. In addition, when the second member is connected to the first member via the rotation shaft extending in the lateral direction, management of the connector of the battery cell can be facilitated.

  In the fourth battery cell connector of the present invention, in addition to obtaining the effect obtained by any one of the first to third battery cell connectors, the second member is further connected to the first battery cell. The workability of the work to be fitted on the member can be improved.

  In the fifth battery cell connector of the present invention, in addition to the effects obtained by any one of the first to fourth battery cell connectors, the contact area with the electrode terminal is further increased. It becomes wider and more stable electric conductivity can be obtained, and the connection force to the electrode terminal can be improved.

  According to the sixth battery cell connector of the present invention, in addition to obtaining the effect obtained by any one of the first to fifth battery cell connectors, the second member is further connected to the first battery cell. The workability | operativity of the operation | work fitted to a member and the operation | work which removes the said 2nd member from the said 1st member can be improved.

  According to the seventh to eleventh battery cell connectors of the present invention, in addition to the effects obtained by any one of the first to sixth battery cell connectors, the first member can The fitted second member can be made difficult to come off from the first member.

FIG. 1 is a perspective view showing a battery module according to a first embodiment of the present invention. The first member of the connector is going to be attached to two battery cells. FIG. 2 is a perspective view showing the connector and the two battery cells when the first member of the connector is attached to the two battery cells. FIG. 3 is a side view showing the connector and the two battery cells in the state of FIG. 2 as seen from the side. 4 is a cross-sectional view taken along line IV-IV in FIG. This figure also shows cross-sectional views of the connector and two battery cells of the fifth to eighth embodiments of the present invention. FIG. 5 is a perspective view showing the connector and the two battery cells when the second member of the connector is fitted to the first member. FIG. 6 is a side view showing the connector and the two battery cells in the state of FIG. 5 as seen from the side. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. This figure also shows cross-sectional views of the connector and two battery cells of the fifth to eighth embodiments of the present invention. FIG. 8 is a plan view showing the connector and the two battery cells in the state of FIG. 5 as seen from the thickness direction. The second member is omitted. Of the lines indicating the first member, the phantom lines indicate when the first member is unloaded, and the solid lines indicate when the second member is fitted to the first member. The 1st member is shown. This figure also shows the connectors and two battery cells of the fifth to eighth embodiments of the present invention. FIG. 9 is a perspective view showing a battery module according to the second embodiment of the present invention. The first member of the connector is to be attached to the two battery cells. FIG. 10 is a perspective view showing the connector and the two battery cells when the first member of the connector of the second embodiment is attached to the two battery cells. FIG. 11 is a side view showing the connector and the two battery cells in the state of FIG. 10 as seen from the side. 12 is a cross-sectional view taken along line XII-XII in FIG. FIG. 13 is a perspective view showing the connector and the two battery cells when the second member of the connector of the second embodiment is fitted to the first member. FIG. 14 is a side view showing the connector and the two battery cells in the state of FIG. 13 as seen from the side. 15 is a cross-sectional view taken along line XV-XV in FIG. FIG. 16 is a perspective view showing a battery module according to a third embodiment of the present invention. The first member of the connector is to be attached to the two battery cells. FIG. 17 is a perspective view showing the connector and the two battery cells when the first member of the connector of the third embodiment is mounted on the two battery cells. FIG. 18 is a perspective view showing the connector and the two battery cells when the second member of the connector of the third embodiment is fitted to the first member. FIG. 19 is a plan view showing the connector and the two battery cells in the state of FIG. 18 as seen from the thickness direction. The second member is omitted. Of the lines indicating the first member, the phantom lines indicate when the first member is unloaded, and the solid lines indicate when the second member is fitted to the first member. The 1st member is shown. FIG. 20 is a perspective view showing a battery module according to a fourth embodiment of the present invention. The first member of the connector is to be attached to the two battery cells. FIG. 21 is a perspective view showing the connector and the two battery cells when the first member of the connector of the fourth embodiment is mounted on the two battery cells. FIG. 22 is a perspective view showing the connector and the two battery cells when the second member of the connector of the fourth embodiment is fitted to the first member. FIG. 23 is a perspective view showing a battery module according to a fifth embodiment of the present invention. The second member of the connector is shown fitted to the first member. FIG. 24 is a perspective view showing a battery module according to a sixth embodiment of the present invention. The time when the first member of the connector is mounted on the two battery cells is shown. FIG. 25 is a perspective view showing the connector and the two battery cells when the second member of the connector of the sixth embodiment is fitted to the first member and further locked by a locking mechanism. It is. FIG. 26 is a perspective view showing a battery module according to a seventh embodiment of the present invention. The time when the first member of the connector is mounted on the two battery cells is shown. FIG. 27 is a perspective view showing the connector and the two battery cells when the second member of the connector of the seventh embodiment is fitted to the first member and further locked by a locking mechanism. It is. FIG. 28 is a perspective view showing a battery module according to an eighth embodiment of the present invention. The time when the first member of the connector is mounted on the two battery cells is shown. FIG. 29 is a perspective view showing the connector and the two battery cells when the second member of the connector of the eighth embodiment is fitted to the first member and further locked by a locking mechanism. It is. FIG. 30 is a perspective view showing the two battery cells that are the objects of the first and fourth to eighth embodiments. These two battery cells can be the target of the second and third embodiments. FIG. 31 is a perspective view showing the two battery cells that are objects of the second and third embodiments. FIG. 32 is a diagram corresponding to FIG. 7 showing a modification of the first embodiment. FIG. 33 is a diagram corresponding to FIG. 7 showing another modification example of the first embodiment.

  Embodiments of the present invention will be described below. 1 to 8 show a battery cell connector and a battery module according to a first embodiment of the present invention. The battery module M includes a connector 100 and two battery cells 200. In the case of this embodiment, the battery module M includes two battery cells 200. However, for example, in the case of a battery module in which a large number of the battery cells are arranged in a line and these are connected in series by using a plurality of the connectors of the present invention, any two adjacent battery cells in the battery module and these are connected. Paying attention to the connector to be connected, these have the same configuration as the battery module M of the embodiment. The battery module M of this embodiment is mounted on an electric vehicle, connected to a motor for driving the electric vehicle via a control system, and configured to supply current to the motor. However, the connector and the battery module of the present invention are widely used in devices that require electric power. Therefore, not only hybrid vehicles, vehicles using internal combustion engines, etc., but also those mounted on, for example, ships, aircraft or other transport machines, or on, for example, blowers, cooling devices or other electric devices, etc. Become.

  The battery cell 200 will be described. Hereinafter, the vertical direction, the horizontal direction, and the thickness direction which are orthogonal to each other will be described, and description will be made using these orientations. In the case of this embodiment, the vertical direction X, the horizontal direction Y, and the thickness direction Z are shown in FIG. If it demonstrates in FIG. 8, the left-right direction of this figure is the said vertical direction X. In FIG. In addition, the vertical direction in this figure is the horizontal direction Y. Further, the thickness direction Z is a direction perpendicular to the paper surface of this figure. As shown in FIG. 30, the two battery cells 200 are arranged side by side along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The pair of electrode terminals with different polarity is the positive electrode terminal 210 and the negative electrode terminal 220. The battery cell 200 is formed in a rectangular parallelepiped shape having sides extending along the vertical direction, the horizontal direction, and the thickness direction, and has a columnar shape on one end face in the thickness direction. The positive electrode terminal 210 and the columnar negative electrode terminal 220 are provided so as to protrude in the thickness direction. In the two battery cells 200, the positive electrode terminal 210 and the negative electrode terminal 220 in each of the battery cells 200 are arranged in the horizontal direction, and one of the two battery cells 200 adjacent to the battery cell 200 is the battery. The positive electrode terminal 210 of the cell 200 and the negative electrode terminal 220 of the other battery cell 200 are arranged so as to be aligned in the vertical direction.

  The connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The two erection parts 111 and the connection part 112 are integrally formed by press-molding a single oxygen-free copper plate, and the material of the two erection parts and the connection part is, for example, tin. It may be formed of plated annealed copper, hard copper, other metals, or other conductive materials. The two erection parts and the connection part may be formed separately and then connected. The two construction parts and the connection part may be formed of different materials and connected to each other. In that case, it is sufficient that at least the two erection parts are formed of a conductive and elastic material, and the material forming the erection part is not limitedly interpreted. The two erected portions 111 extend in the vertical direction and face each other in the horizontal direction. The dimension in the thickness direction of the two erected portions 111 is slightly shorter than the length of the two electrode terminals 210 and 220 projecting from the end face of the battery cell 200, but is substantially the same as this projecting length. It may be a length or a length exceeding that. The two erection parts 111 are formed by the plates facing in the lateral direction, but the two erection parts may be formed in a rod shape having a round cross section, a quadrangle, or a polygon, for example.

  The connecting portion 112 is formed by a plate facing in the thickness direction, but the connecting portion may be formed in a rod shape having a round cross section, a square shape, or a polygonal shape, for example. The connection portion 112 has both lateral edges thereof connected to one end edge in the thickness direction of the two erection portions 111. For example, the both end edges of the connection portion are the two edges. You may respectively connect to the other end or middle part of the said thickness direction of a construction part. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. This predetermined length is the distance between the centers of the two electrode terminal accommodating spaces 113 and 114 when viewed in the thickness direction. The connection portion 112 is provided at both ends and a middle portion of the first member 110 in the vertical direction, and the two electrode terminal accommodating spaces 113 and 114 are formed between the connection portions 112. Yes. The connecting portion may be provided at least at one portion of the first member between the two electrode terminal accommodating spaces and the end portion in the vertical direction and the two electrode terminal accommodating spaces. Any number of the connecting portions may be provided in each part. The electrode terminal accommodating spaces 113 and 114 are formed larger than the space occupied by the electrode terminals 210 and 220 of the two battery cells 200 when viewed from the thickness direction. The predetermined length corresponds to the distance between the electrode terminal 210 or 220 of one of the battery cells 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. This distance is the center of the electrode terminal 210 or 220 of one of the battery cells 200 when viewed in the thickness direction and the center of the electrode terminal 220 or 210 of a different polarity from that of the other battery cell 200. Is the distance. The two electrode terminal accommodating spaces 113 and 114 respectively penetrate the first member 110 in the thickness direction. Since the pair of electrode terminals 210 and 220 with different polarities are formed in a columnar shape having a central axis extending in the thickness direction, the two electrode terminal accommodating spaces 113 and 114 are also correspondingly thicker. It is formed in a cylindrical shape having a central axis extending in the direction. For this reason, each space 111 is formed with two space forming portions 111a projecting in a circular arc shape toward the outside in the lateral direction and spaced apart by a predetermined length in the longitudinal direction. In the case of this embodiment, the space forming part 111a is formed by bending the erection part 111. However, the space forming part is formed by forming the inner side in the lateral direction of the erection part in a concave shape. Also good. When the pair of electrode terminals of different polarity are formed in a prismatic shape having a central axis extending in the thickness direction or other column shapes, the two electrode terminal accommodating spaces are also correspondingly formed in the thickness direction. It is formed in the shape of a prism having an extending central axis or other columns.

  The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The pair of sandwiching portions 121a and the connection portion 122 are integrally formed by press-molding a single stainless steel plate, but the pair of sandwiching portions and the material of the connection portion are formed. May be made of, for example, a rolled steel plate or other conductive material such as metal, ceramics, or other insulating material. The paired sandwiching portions and the connection portion may be formed separately and then connected. The pair of sandwiching portions and the connection portion may be formed of different materials and connected. The pair of holding portions 121a face each other in the lateral direction. In the case of this embodiment, a plurality of pairs of the sandwiching portions 121a are provided, and the paired sandwiching portions 121a face each other in the lateral direction. Instead of this, only one pair of the sandwiching portions may be provided, and the pair of sandwiching portions may be opposed to each other in the lateral direction. The connecting portion 122 is connected to one end in the thickness direction of the sandwiching portion 121a in which the both ends in the lateral direction are paired. For example, the both ends of the connecting portion are paired. Further, it may be connected to the other end in the thickness direction or the middle part of the sandwiching part. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. The outer dimension in the lateral direction of the two erected parts 111 is a dimension along the lateral direction between the outer surfaces in the lateral direction of the two erected parts 111. Here, each part along the vertical direction is defined along the vertical direction of the first member 110 and the second member 120 when the second member 120 is fitted to the first member 110. Further, in each part, the horizontal distance between the pair of sandwiching portions 121a is compared with the lateral outer dimensions of the two erected portions 111 when no load is applied. In this embodiment, side plates 121 extending in the horizontal direction from both ends of the connecting portion 122 in the horizontal direction extend along the thickness direction, and these side plates 121 are opposed to the horizontal direction. Yes. And the dividing line 121b extended in the said thickness direction is formed in the site | part which opposes in the said two side plates 121, respectively. A plurality of these dividing lines 121b are formed at intervals along the vertical direction. These dividing lines 121b are each formed with a length that does not reach the connecting portion 122 along the thickness direction from the free end in the thickness direction of each side plate 121. In each side plate 121, a section is formed between two adjacent dividing lines 121b, and the section is bent so as to go inward in the lateral direction as it goes to the tip in the thickness direction. The pair of sandwiching portions 121a is formed by the two pieces facing the lateral direction formed on the two side plates 121. The pair of sandwiching portions 121 a are fitted so that the second member 120 is positioned on the first member 110 such that the pair of sandwiching portions 121 a are located on both lateral sides of the two erection portions 111. In this embodiment, it is provided at a position deviating from the electrode terminal accommodating spaces 113 and 114 in the vertical direction. In this embodiment, it is provided on both sides of the electrode terminal accommodating spaces 113 and 114 in the vertical direction. However, you may provide the said clamping part in the position corresponding to the said electrode terminal accommodation space in the said vertical direction. Hereinafter, when it is assumed that the second member is fitted to the first member, the paired holding portions of the second member and the first member are located on both lateral sides of the two erection portions, respectively. It means to fit. Instead of this, the side plate itself may be used as the clamping portion. In this case, the side plate may be bent so as to go inward in the lateral direction as it goes toward the tip in the thickness direction. In any case, the horizontal distance between the pair of holding parts in each part along the vertical direction is smaller than the outer dimension in the horizontal direction of the two erection parts when no load is applied. That's fine. The pair of sandwiching portions 121a is formed by the plate facing in the lateral direction, but the two sandwiching portions may be formed in a rod shape having a round, square, or polygonal cross section, for example. Good.

  As can be seen from the state shown in FIGS. 1 to 4 and the state shown in FIGS. 5 to 8, the pair of holding portions 121 a is attached to the first member 110 and the two holding members 121 a are mounted on the two When fitted so as to be located on both lateral sides of the portion 111, the two mounting portions 111 are pushed inward in the lateral direction by the pair of sandwiching portions 121a to be elastically deformed, and the two electrodes The terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, as shown in FIGS. 5 to 8, in the battery module M, the sandwiching part 121 a in which the second member 120 is paired with the first member 110 is the lateral direction of the two installation parts 111. The two erected parts 111 are pushed inwardly in the lateral direction by the pair of sandwiching parts 121a so as to be positioned on both outer sides, and are elastically deformed. , 114 is narrowed in the lateral direction, and the two erected portions 111 are respectively connected to the electrode terminal 210 or 220 of one battery cell 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. In contact with the contact pressure.

  One end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. That is, one end in the vertical direction of the two side plates 121 is located on both outer sides in the horizontal direction at one end of the two erection parts 111, and through holes are formed in the horizontal direction in the two side plates 121. The rotation shaft 130 is rotatably inserted, and the second member 120 is rotatable about the rotation shaft 130 with respect to the first member 110. Then, when the second member 120 is rotated so that the other end in the vertical direction of the two side plates 121 is substantially separated from the two erection parts 111 in the thickness direction, the second member 120 approaches the second plate 120. The second member 120 is fitted into the first member 110, and the pair of sandwiching portions 121a are located on the both lateral outer sides of the two erected portions 111, respectively. When the second member 120 is rotated in the opposite direction, the second member 120 is detached from the first member 110. Hereinafter, when the second member is removed from the first member, the pair of holding portions of the second member from the first member are separated from both lateral sides of the two erection portions. It means to remove. In the case of this embodiment, the one end in the longitudinal direction of the second member is rotatably provided at one end in the longitudinal direction of the first member via the pivot shaft extending in the lateral direction. The direction in which the second member 120 is fitted to the first member 110 and the direction in which the second member 120 is removed from the first member 110 are substantially the thickness direction, but the first member and the second member are connected. If not, the direction in which the second member is fitted to the first member or the direction in which the second member is removed from the first member may be, for example, the vertical direction or other directions.

  On the fitting side of the pair of sandwiching portions 121a with the two erected portions 111 in the thickness direction, there is a guide portion 121c whose inner dimension in the lateral direction increases toward the tip in the thickness direction. Is provided. The inner dimension in the horizontal direction of the paired clamping parts 121a is a dimension along the horizontal direction between the inner surfaces in the horizontal direction of the paired clamping parts 121a. The fitting side with the specific member is the side fitted with the specific member. As shown in FIG. 32, instead of the guide portion 121c, the two erected portions 111 are directed to the fitting side with the pair of holding portions 121a in the thickness direction toward the front end in the thickness direction. In addition, a guide portion 111c having a small outer dimension in the lateral direction may be provided. The outer dimension in the lateral direction of the two erected parts 111 is a dimension along the lateral direction between the outer surfaces in the lateral direction of the two erected parts 111. As shown in FIG. 33, the connector 100 may be provided with both guide portions 121c and 111c. Furthermore, when the direction in which the second member is fitted to the first member or the direction in which the second member is removed from the first member is, for example, the vertical direction, the pair of holding portions in the vertical direction are in the vertical direction. You may provide the guide part which the internal dimension of the said horizontal direction becomes large toward the front-end | tip of the said vertical direction on the fitting side with the said two installation parts. Further, instead of the guide portion, the lateral outer dimension is reduced toward the longitudinal tip on the fitting side of the two erection portions with the paired clamping portions in the longitudinal direction. A guide part may be provided, or both of these guide parts may be provided.

  As shown in FIG. 8, as described above, the connection portions 112 of the first member 110 are provided at both end portions and midway portions of the first member 110 in the vertical direction. The two electrode terminal accommodating spaces 113 and 114 are formed between the connecting portions 112. That is, one of the above-mentioned between the connection portion 112 provided at one end portion in the vertical direction of the first member 110 and the connection portion 112 provided in the middle portion in the vertical direction of the first member 110. An electrode terminal accommodating space 113 is formed, and the connection portion 112 provided in the middle portion of the first member 110 in the vertical direction and the connection portion 112 provided in the other end portion of the first member 110 in the vertical direction. The other electrode terminal accommodating space 114 is formed between the connecting portion 112 and the other portion. A modification in which the connection portions of the first member are provided at both ends in the longitudinal direction of the first member and not provided in the middle portion, and the two electrode terminal accommodating spaces are formed between these connection portions. There is also. Therefore, the connecting portion 112 of the first member 110 is connected to each of the erection portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two two portions are between the both ends. Electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated. In addition, each end portion in the vertical direction of the connecting portion 112 between the first electrode terminal accommodating space 113 and the second electrode terminal accommodating space 114 has each end portion and a side closer thereto. A slit 116 is formed in the direction away from the free end 111b along the vertical direction so that a portion connected to the installation part 111 to which the free end 111b belongs is shortened in the vertical direction. The length of the free end 111b is increased. However, the present invention includes an embodiment in which such a slit is not provided.

  The connector 100 is provided with a locking mechanism 140 that locks the second member 120 to the first member 110 when the second member 120 is fitted to the first member 110. The locking mechanism 140 includes a convex portion 141 and a concave portion 142. When the second member 120 is fitted into the first member 110, the erection part 111 and the clamping part 121a have a portion facing the lateral direction. Among these, the said recessed part 142 dented in the said horizontal direction inside is formed in the said site | part in the said horizontal direction outer side of the said two installation parts 111. As shown in FIG. Moreover, the said convex part 141 protruded inside the said horizontal direction is formed in the said site | part inside the said horizontal direction of the said clamping part 121a which became a pair. The convex portion 141 is configured to fit into the concave portion 142 when the second member 120 is fitted into the first member 110. Contrary to this, a convex portion projecting outward in the lateral direction is formed at the portion outside the lateral direction of the two erected portions, and the laterally inner side of the pair of sandwiching portions 121a. Forming a recess that is recessed outward in the lateral direction at the site, and when the second member 120 is fitted into the first member 110, the projection is fitted into the recess. Also good. Here, the concave portion 142 and the convex portion 141 are provided in the erection portion 111 and the sandwiching portion 121a at the end portion in the longitudinal direction. However, the erection portion and the sandwiching portion in other portions in the longitudinal direction are provided. You may provide the said recessed part and the said convex part.

  Therefore, the battery cell connector of the first embodiment includes two battery cells 200 each having a pair of electrode terminals 210 and 220 having columnar different polarities provided so as to protrude from the end faces in directions parallel to each other. Are arranged next to each other, the first member 110 is accommodated in the two battery cells 200, the electrode terminal 210 or 220 of the one battery cell 200 is accommodated in one of the electrode terminal accommodating spaces 113, and the other The electrode terminal receiving space 114 is mounted so that the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200 is accommodated. Next, when the second member 120 is fitted into the first member 110, the two construction portions 111 are pushed inward in the lateral direction by the pair of sandwiching portions 121a to be elastically deformed, and the two electrodes The terminal accommodating spaces 113 and 114 are narrowed in the lateral direction. Then, the two installation parts 111 are brought into contact with the two electrode terminals 210 and 220 of the two battery cells 200 with a contact pressure, respectively. As a result, the connection force to the two electrode terminals 210 and 220 of the connector 100 of the battery cell is obtained. When the second member 120 is removed from the first member 110, the two construction parts 111 are restored to the outside in the lateral direction, the contact pressure is reduced, and the first member 110 is removed from the two battery cells. It becomes possible to remove from 200. As described above, if the first member 110 is simply mounted on the electrode terminals 210 and 220 of the two battery cells 200 and then the second member 120 is fitted on the first member 110, the two electrode terminals 210 are arranged. , 220 is secured so that the connecting operation of the two electrode terminals 210 and 220 can be easily performed and workability can be improved, and the two electrode terminals 210 and 220 can be improved. A stable electrical conductivity can be obtained by securing a connection force to the. The same effect can be obtained with the battery module M.

  In the battery cell connector according to the present invention, each of the electrode terminal accommodating spaces is formed in the same size as the space occupied by the electrode terminals of the two battery cells arranged side by side in the thickness direction. It may be. However, in the case of the battery cell connector 100 according to the first embodiment, the electrode terminal accommodating spaces 113 and 114 are provided with a pair of columnar electrodes having different polarities provided so as to protrude from the end surfaces in directions parallel to each other. The two battery cells having the terminals 210 and 220 are formed to be larger than the space occupied by the electrode terminals 210 and 220 of the two battery cells arranged side by side as viewed from the thickness direction. A length corresponding to the distance between the electrode terminal 210 or 220 of the battery cell 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200 is used. In this way, when the first member 110 is attached to the two battery cells, the two electrode terminals 210 and 220 are likely to be accommodated in the two electrode terminal accommodating spaces 113 and 114. As a result, the workability of attaching the first member 110 to the two battery cells 200 can be further improved.

  In the battery cell connector according to the present invention, the first member and the second member may be connected to each other through, for example, a wire, a link mechanism, or other connecting means. In that case, you may provide so that the connection by the said connection means can be cancelled | released. Further, the first member and the second member may be independent without being connected. Among the various embodiments, in the case of the battery cell connector 100 according to the first embodiment, the vertical end of the second member 120 is connected to the vertical end of the first member 110. Further, it is provided so as to be rotatable through the rotation shaft 130 extending in the lateral direction. In this case, the second member 120 can be fitted to the first member 110 by rotating the second member 120, and the second member 120 is removed from the first member 110. Can do. In addition, when the second member 120 is connected to the first member 110 via the rotating shaft 130, the first member 110 and the second member 120 are not separated from each other. As a result, the workability of the work of fitting the second member 120 to the first member 110 can be further improved. Further, when the second member 120 is connected to the first member 110 via the rotation shaft 130 extending in the lateral direction, the management of the connector of the battery cell can be facilitated.

  The connector of the battery cell according to the present invention includes an end edge on the fitting side of the pair of sandwiching portions with the two erection parts in the thickness direction, and the thickness of the two erection parts in the thickness direction. The embodiment includes an embodiment in which an end edge on a fitting side with a pair of holding portions is formed to extend in the thickness direction. Among the various embodiments, in the case of the battery cell connector 100 according to the first embodiment, the connector 100 includes the two erections in the thickness direction of the pair of holding portions 121a. The guide part 121c which is provided in the fitting side with the part 111 and becomes large in the said horizontal direction toward the front-end | tip of the said thickness direction is provided. Further, the battery cell connector 100 according to the modified example is provided on the fitting side of the two erected portions 111 with the pair of sandwiching portions 121a in the thickness direction and is directed toward the front end in the thickness direction. In addition, a guide portion 111c having a small outer dimension in the lateral direction is provided. Further, the battery cell connector 100 according to another modified example includes both of the guide portions 121c and 111c. In this manner, when the second member 120 is fitted to the first member 110, the pair of sandwiching portions 121a is formed on both lateral sides of the two erected portions 111 by the guidance of the guide portion 121c. It becomes easy to be introduced. As a result, the workability of the work of fitting the second member 120 to the first member 110 can be further improved.

  The connector of the battery cell of the present invention may be provided with a series of the connecting portions in the first member. Further, the length along the vertical direction of the connecting portion of the first member is not limitedly interpreted by the first embodiment and other embodiments described later, and the length is extended to the two erections. The length may be equal to the length of the section, or may be shorter or longer than the two installation sections. Among such various embodiments, in the case of the battery cell connector 100 according to the first embodiment, the connection portion 112 of the first member 110 is connected to the connection member 112 in the vertical direction of the first member 110. The two electrode terminal accommodating spaces 113 and 114 are formed between the connecting portions 112 provided at both end portions and the intermediate portion, and one of the electrode terminal accommodating spaces 113 and the electrode in one of the erected portions 111 are formed. The free end 111b is formed on the side of the electrode terminal accommodating space 113 by dividing the connection portion 112 at the end closer to the terminal accommodating space 113, and the other end of the other erection portion 111 is formed. The electrode terminal accommodating space 114 and the connection portion 112 at the end closer to the electrode terminal accommodating space 114 are divided so that the electrode terminal accommodating space 114 has the self-portion. The end 111b is formed, the respective free end 111b and the respective free end 111b is between the bridging portion 111 which faces to form the deformable space 115 is above the free end 111b of the elastic deformation is accommodated. In this way, when the free end 111b of the erection part 111 is displaced toward the erection part 111 facing the erection part 111, the free end 111b comes into contact with the electrode terminals 210 and 220 so as to be wound. Therefore, when viewed from the thickness direction, the contact length between the erection part 111 and the electrode terminals 210 and 220 is increased, and the contact area between the erection part 111 and the electrode terminals 210 and 220 is increased. As a result, the contact area with the electrode terminals 210 and 220 can be widened to obtain more stable electrical conductivity, and the connection force to the electrode terminals 210 and 220 can be improved.

  The connector of the battery cell according to the present invention is configured such that the first member and the second member are coupled to each other by contact pressure acting between the installation portion and the clamping portion without providing the locking mechanism. Also good. Among such various embodiments, in the case of the battery cell connector 100 of the first embodiment, when the second member 120 is fitted to the first member 110 in the connector 100, A locking mechanism 140 for locking the second member 120 to the first member 110 is provided. In this way, the first member 110 is unlikely to be detached from the second member 120 due to the locking of the locking mechanism 140. As a result, the second member 120 fitted to the first member 110 can be further prevented from being detached from the first member 110.

  When the locking mechanism is provided in the battery cell connector of the present invention, the locking mechanism is not limitedly interpreted by the first embodiment and other embodiments described later. Among such various embodiments, in the case of the battery cell connector 100 of the first embodiment, the locking mechanism 140 is used when the second member 120 is fitted to the first member 110. A projection 141 provided on one of the laterally opposed parts of the erection part 111 and the sandwiching part 121a, and a recess 142 provided on the other side to which the projection 141 can be fitted. Yes. Thus, one aspect of the locking mechanism 140 can be shown.

  Hereinafter, other embodiments of the battery cell connector and the battery module of the present invention will be described. As the configurations of the battery cell connector 100 and the battery module M of these embodiments, the configurations of the battery cell connector 100 and the battery module M of the first embodiment and its modifications are cited as they are. A configuration different from the configuration of the embodiment and its modification will be additionally described.

  9 to 15 show a second embodiment of the battery cell connector and the battery module of the present invention. Similar to the first embodiment, the battery module M includes a connector 100 and two battery cells 200.

  As shown in FIG. 31, similar to the first embodiment, the two battery cells 200 are arranged adjacent to each other along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The columnar positive electrode terminal 210 and the columnar negative electrode terminal 220 are provided so as to protrude in the thickness direction on one end face of the battery cell 200 in the thickness direction. In the two battery cells 200, the positive electrode terminal 210 and the negative electrode terminal 220 in each of the battery cells 200 are arranged in the horizontal direction, and one of the two battery cells 200 adjacent to the battery cell 200 is the battery. The positive electrode terminal 210 of the cell 200 and the negative electrode terminal 220 of the other battery cell 200 are arranged so as to be aligned in the vertical direction. The electrode terminals 210 and 220 of the first embodiment are different from the electrode terminals 210 and 220 of the first embodiment. In the case of the electrode terminals 210 and 220 of the present embodiment, the distal ends 211 and 221 of the electrode terminals 210 and 220 in the thickness direction are used. However, it has a shape with its peripheral edge protruding outward. In the case of this embodiment, since the electrode terminals 210 and 220 are formed in a columnar shape having a central axis extending in the thickness direction, the tip portions 211 and 221 in the thickness direction are thicker than other portions. The diameter is large when viewed in the vertical direction, and it is formed in a disk shape. The electrode terminals 210 and 220 of the battery cell 200 of this embodiment have a smooth shape with no overhang and no unevenness like the electrode terminals 210 and 220 of the battery cell 200 of the first embodiment. It may be.

  Similar to the first embodiment, the connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The two erection parts 111 and the connection part 112 are integrally formed by press-molding a single oxygen-free copper plate, and the material of the two erection parts and the connection part is, for example, tin. It may be formed of plated annealed copper, hard copper, other metals, or other conductive materials. The two erection parts and the connection part may be formed separately and then connected. The two construction parts and the connection part may be formed of different materials and connected to each other. In that case, it is sufficient that at least the two erection parts are formed of a conductive and elastic material, and the material forming the erection part is not limitedly interpreted. The two erected portions 111 extend in the vertical direction and face each other in the horizontal direction. The dimension in the thickness direction of the two erected portions 111 is slightly shorter than the length of the two electrode terminals 210 and 220 projecting from the end face of the battery cell 200, but is substantially the same as this projecting length. It may be a length or a length exceeding that. The two erection parts 111 are formed by the plates facing in the lateral direction, but the two erection parts may be formed in a rod shape having a round cross section, a quadrangle, or a polygon, for example.

  The connecting portion 112 is folded back from both lateral edges of the first plate 112a in the thickness direction and overlaps the first plate 112a from one side in the thickness direction. Two second plates 112b. In the connecting portion 112, the two inner edges of the two second plates 112b are arranged so as to face each other. The two end edges are respectively connected to one end edge in the thickness direction of the two erection parts 111. For example, the two end edges of the two second plates are the two erection parts. May be connected to the other end in the thickness direction or in the middle. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. This predetermined length is the distance between the centers of the two electrode terminal accommodating spaces 113 and 114 when viewed in the thickness direction. The first plate 112a of the connecting portion 112 has the same shape as the two electrode terminal accommodating spaces 113, 114 in a portion overlapping the two electrode terminal accommodating spaces 113, 114 when viewed from the thickness direction. A through hole 112c penetrating the first plate 112a is provided. The electrode terminal accommodating spaces 113 and 114 are formed larger than the space occupied by the electrode terminals 210 and 220 of the two battery cells 200 when viewed from the thickness direction. The predetermined length corresponds to the distance between the electrode terminal 210 or 220 of one of the battery cells 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. This distance is the center of the electrode terminal 210 or 220 of one of the battery cells 200 when viewed in the thickness direction and the center of the electrode terminal 220 or 210 of a different polarity from that of the other battery cell 200. Is the distance. The two electrode terminal accommodating spaces 113 and 114 communicate with the external space on one side of the first member 110 in the thickness direction. The two electrode terminal accommodating spaces 113 and 114 are external to the other side of the first member 110 in the thickness direction, that is, the side into which the electrode terminals 210 and 220 enter, through the through holes 112c. It communicates with the space. Since the pair of electrode terminals 210 and 220 with different polarities are formed in a columnar shape having a central axis extending in the thickness direction, the two electrode terminal accommodating spaces 113 and 114 are also correspondingly thicker. It is formed in a cylindrical shape having a central axis extending in the direction, and the through hole 112c is also formed in a circular shape corresponding to this. For this reason, each space 111 is formed with two space forming portions 111a projecting in a circular arc shape toward the outside in the lateral direction and spaced apart by a predetermined length in the longitudinal direction. In the case of this embodiment, the space forming part 111a is formed by bending the erection part 111. However, the space forming part is formed by forming the inner side in the lateral direction of the erection part in a concave shape. Also good. When the pair of electrode terminals of different polarity are formed in a prismatic shape having a central axis extending in the thickness direction or other column shapes, the two electrode terminal accommodating spaces are also correspondingly formed in the thickness direction. It is formed in the shape of a prism having an extending central axis or other columns.

  The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The pair of sandwiching portions 121a and the connection portion 122 are integrally formed by press-molding a single stainless steel plate, but the pair of sandwiching portions and the material of the connection portion are formed. May be made of, for example, a rolled steel plate or other conductive material such as metal, ceramics, or other insulating material. The paired sandwiching portions and the connection portion may be formed separately and then connected. The pair of sandwiching portions and the connection portion may be formed of different materials and connected. The pair of holding portions 121a face each other in the lateral direction. In the case of this embodiment, only one pair of the clamping parts 121a is provided, and the paired clamping parts 121a face each other in the lateral direction. Instead of this, a plurality of pairs of sandwiching portions may be provided, and the pair of sandwiching portions may be opposed to each other in the lateral direction. The connecting portion 122 is connected to one end in the thickness direction of the sandwiching portion 121a in which the both ends in the lateral direction are paired. For example, the both ends of the connecting portion are paired. Further, it may be connected to the other end in the thickness direction or the middle part of the sandwiching part. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. Here, each part along the vertical direction is defined along the vertical direction of the first member 110 and the second member 120 when the second member 120 is fitted to the first member 110. Further, in each part, the horizontal distance between the pair of sandwiching portions 121a is compared with the lateral outer dimensions of the two erected portions 111 when no load is applied. In the case of this embodiment, side plates facing the lateral direction extend from both ends of the connecting portion 122 in the lateral direction, respectively, along the thickness direction, and the side plates serve as the plate-shaped sandwiching portions 121a. These clamping parts 121a are opposed in the lateral direction. Instead of this, a plurality of the clamping portions may be formed from the side plate as employed in the first embodiment. That is, the dividing lines extending in the thickness direction are formed at opposing portions of the two side plates. A plurality of these opposing dividing lines are formed at intervals along the vertical direction. These dividing lines are each formed with a length that does not reach the connecting portion along the thickness direction from the free end in the thickness direction of each side plate. In each of the side plates, a section is formed between two adjacent dividing lines, and the section is bent so as to go inward in the lateral direction as it goes toward the tip in the thickness direction. The pair of sandwiching portions is formed by the two pieces facing the lateral direction formed in the two side plates. When the pair of sandwiching portions are fitted so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two erection portions 111, the second member is fitted to the first member, respectively. , Provided in a position deviating from the electrode terminal accommodating space in the vertical direction, for example, provided on both sides of the electrode terminal accommodating space in the vertical direction. However, you may provide the said clamping part in the position corresponding to the said electrode terminal accommodation space in the said vertical direction. The pair of sandwiching portions 121a is formed by the plate facing in the lateral direction, but the two sandwiching portions may be formed in a rod shape having a round, square, or polygonal cross section, for example. Good.

  As shown in FIGS. 9 to 12 and FIGS. 13 to 15, the pair of holding parts 121 a is connected to the first member 110 and the two members 120 a are connected to the two members. When fitted so as to be located on both lateral sides of the portion 111, the two mounting portions 111 are pushed inward in the lateral direction by the pair of sandwiching portions 121a to be elastically deformed, and the two electrodes The terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, as shown in FIGS. 13 to 15, in the battery module M, the holding member 121 a in which the second member 120 is paired with the first member 110 is the lateral direction of the two erected portions 111. The two erected parts 111 are pushed inwardly in the lateral direction by the pair of sandwiching parts 121a so as to be positioned on both outer sides, and are elastically deformed. , 114 is narrowed in the lateral direction, and the two erected portions 111 are respectively connected to the electrode terminal 210 or 220 of one battery cell 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. In contact with the contact pressure.

  One end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. That is, one end in the vertical direction of the two side plates 121 is located on both outer sides in the horizontal direction at one end of the two erection parts 111, and through holes are formed in the horizontal direction in the two side plates 121. The rotation shaft 130 is rotatably inserted, and the second member 120 is rotatable about the rotation shaft 130 with respect to the first member 110. Then, when the second member 120 is rotated so that the other end in the vertical direction of the two side plates 121 is substantially separated from the two erection parts 111 in the thickness direction, the second member 120 approaches the second plate 120. The second member 120 is fitted into the first member 110, and the pair of sandwiching portions 121a are located on the both lateral outer sides of the two erected portions 111, respectively. When the second member 120 is rotated in the opposite direction, the second member 120 is detached from the first member 110.

  As shown in FIG. 12 and FIG. 15, on the fitting side of the two erected parts 111 in the thickness direction with the pair of sandwiching parts 121 a, the lateral direction toward the distal end in the thickness direction. A guide portion 111c having a smaller outer dimension is provided. As described in the first embodiment, instead of the guide portion 111c, the thickness of the pair of holding portions 121a on the fitting side with the two construction portions 111 in the thickness direction is changed. You may provide the guide part 121c from which the internal dimension of the said horizontal direction becomes large toward the front-end | tip of a direction. The connector 100 may be provided with both guide portions 121c and 111c.

  In the connector 100 of this embodiment, the free end and the deformation-allowing space are not provided, and the locking mechanism is not provided, but the locking mechanism may be provided. As described above, this locking mechanism is a mechanism for locking the second member to the first member when the second member is fitted to the first member. For example, when the second member is fitted to the first member, the installation portion and the sandwiching portion have a portion that faces the lateral direction, of which one is provided with a convex portion and the other is the convex portion. Is provided with a recess capable of being fitted.

  From the battery cell connector 100 and the battery module M of this embodiment, the first embodiment except the actions and effects obtained by the free ends and the actions and effects obtained by the locking mechanism. Although the same operation and effect as those of the battery cell connector 100 and the battery module M can be obtained, the following operation and effect can be further obtained. In the case of the electrode terminals 210 and 220 of this embodiment, since the tip portions 211 and 221 in the thickness direction of the electrode terminals 210 and 220 are shaped so as to project the peripheral edges outward, the installation portion 111 Contacts the electrode terminals 210 and 220 with contact pressure between the tip portions 211 and 221 and the end face of the battery cell 200. And even if the construction part 111 tries to move in the direction away from the end face of the battery cell 200 along the thickness direction, it cannot be moved by being caught by the tip parts 211 and 221, so the connector 100 is not connected to the electrode terminal 210. , 220 can be prevented. Even when such a tip is provided in the electrode terminal of the first embodiment, the same operation and effect can be obtained. The electrode terminals 210 and 220 of the battery cell 200 of this embodiment have a smooth shape with no overhang and no unevenness like the electrode terminals 210 and 220 of the battery cell 200 of the first embodiment. In this case, the first member can be easily attached to the electrode terminal.

  16 to 19 show a third embodiment of the battery cell connector and the battery module of the present invention. Similar to the first embodiment, the battery module M includes a connector 100 and two battery cells 200.

  As shown in FIG. 31, similar to the first embodiment, the two battery cells 200 are arranged adjacent to each other along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The columnar positive electrode terminal 210 and the columnar negative electrode terminal 220 are provided so as to protrude in the thickness direction on one end face of the battery cell 200 in the thickness direction. In the two battery cells 200, the positive electrode terminal 210 and the negative electrode terminal 220 in each of the battery cells 200 are arranged in the horizontal direction, and one of the two battery cells 200 adjacent to the battery cell 200 is the battery. The positive electrode terminal 210 of the cell 200 and the negative electrode terminal 220 of the other battery cell 200 are arranged so as to be aligned in the vertical direction. The electrode terminals 210 and 220 of the first embodiment are different from the electrode terminals 210 and 220 of the first embodiment. In the case of the electrode terminals 210 and 220 of the present embodiment, the distal ends 211 and 221 of the electrode terminals 210 and 220 in the thickness direction are used. However, it has a shape with its peripheral edge protruding outward. In the case of this embodiment, since the electrode terminals 210 and 220 are formed in a columnar shape having a central axis extending in the thickness direction, the tip portions 211 and 221 in the thickness direction are thicker than other portions. The diameter is large when viewed in the vertical direction, and it is formed in a disk shape. The electrode terminals 210 and 220 of the battery cell 200 of this embodiment have a smooth shape with no overhang and no unevenness like the electrode terminals 210 and 220 of the battery cell 200 of the first embodiment. It may be.

  Similar to the first embodiment, the connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The two erection parts 111 and the connection part 112 are integrally formed by press-molding a single oxygen-free copper plate, and the material of the two erection parts and the connection part is, for example, tin. It may be formed of plated annealed copper, hard copper, other metals, or other conductive materials. The two erection parts and the connection part may be formed separately and then connected. The two construction parts and the connection part may be formed of different materials and connected to each other. In that case, it is sufficient that at least the two erection parts are formed of a conductive and elastic material, and the material forming the erection part is not limitedly interpreted. The two erected portions 111 extend in the vertical direction and face each other in the horizontal direction. The dimension in the thickness direction of the two erected portions 111 is slightly shorter than the length of the two electrode terminals 210 and 220 projecting from the end face of the battery cell 200, but is substantially the same as this projecting length. It may be a length or a length exceeding that. The two erection parts 111 are formed by the plates facing in the lateral direction, but the two erection parts may be formed in a rod shape having a round cross section, a quadrangle, or a polygon, for example.

  The connecting portion 112 is folded back from both lateral edges of the first plate 112a in the thickness direction and overlaps the first plate 112a from one side in the thickness direction. Two second plates 112b. In the connecting portion 112, the two inner edges of the two second plates 112b are arranged so as to face each other. The two end edges are respectively connected to one end edge in the thickness direction of the two erection parts 111. For example, the two end edges of the two second plates are the two erection parts. May be connected to the other end in the thickness direction or in the middle. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. This predetermined length is the distance between the centers of the two electrode terminal accommodating spaces 113 and 114 when viewed in the thickness direction. The first plate 112a of the connecting portion 112 has the same shape as the two electrode terminal accommodating spaces 113, 114 in a portion overlapping the two electrode terminal accommodating spaces 113, 114 when viewed from the thickness direction. A through hole 112c penetrating the first plate 112a is provided. The electrode terminal accommodating spaces 113 and 114 are formed larger than the space occupied by the electrode terminals 210 and 220 of the two battery cells 200 when viewed from the thickness direction. The predetermined length corresponds to the distance between the electrode terminal 210 or 220 of one of the battery cells 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. This distance is the center of the electrode terminal 210 or 220 of one of the battery cells 200 when viewed in the thickness direction and the center of the electrode terminal 220 or 210 of a different polarity from that of the other battery cell 200. Is the distance. The two electrode terminal accommodating spaces 113 and 114 communicate with the external space on one side of the first member 110 in the thickness direction. The two electrode terminal accommodating spaces 113 and 114 are external to the other side of the first member 110 in the thickness direction, that is, the side into which the electrode terminals 210 and 220 enter, through the through holes 112c. It communicates with the space. Since the pair of electrode terminals 210 and 220 with different polarities are formed in a columnar shape having a central axis extending in the thickness direction, the two electrode terminal accommodating spaces 113 and 114 are also correspondingly thicker. It is formed in a cylindrical shape having a central axis extending in the direction, and the through hole 112c is also formed in a circular shape corresponding to this. For this reason, each space 111 is formed with two space forming portions 111a projecting in a circular arc shape toward the outside in the lateral direction and spaced apart by a predetermined length in the longitudinal direction. In the case of this embodiment, the space forming part 111a is formed by bending the erection part 111. However, the space forming part is formed by forming the inner side in the lateral direction of the erection part in a concave shape. Also good. When the pair of electrode terminals of different polarity are formed in a prismatic shape having a central axis extending in the thickness direction or other column shapes, the two electrode terminal accommodating spaces are also correspondingly formed in the thickness direction. It is formed in the shape of a prism having an extending central axis or other columns. An opening 117 extending in the vertical direction is formed on the side of one of the electrode terminal accommodating spaces 113 at a portion between one of the second plates 112b and one of the installation portions 111. In addition, in the portion between the other second plate 112b and the other installation part 111, an opening 117 extending in the vertical direction is formed on the other electrode terminal accommodating space 114 side.

  The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The pair of sandwiching portions 121a and the connection portion 122 are integrally formed by press-molding a single stainless steel plate, but the pair of sandwiching portions and the material of the connection portion are formed. May be made of, for example, a rolled steel plate or other conductive material such as metal, ceramics, or other insulating material. The paired sandwiching portions and the connection portion may be formed separately and then connected. The pair of sandwiching portions and the connection portion may be formed of different materials and connected. The pair of holding portions 121a face each other in the lateral direction. In the case of this embodiment, a plurality of pairs of sandwiching portions 121a are provided, and the paired sandwiching portions 121a face each other in the lateral direction. The connecting portion 122 is connected to one end in the thickness direction of the sandwiching portion 121a in which the both ends in the lateral direction are paired. For example, the both ends of the connecting portion are paired. Further, it may be connected to the other end in the thickness direction or the middle part of the sandwiching part. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. Here, each part along the vertical direction is defined along the vertical direction of the first member 110 and the second member 120 when the second member 120 is fitted to the first member 110. Further, in each part, the horizontal distance between the pair of sandwiching portions 121a is compared with the lateral outer dimensions of the two erected portions 111 when no load is applied. In this embodiment, side plates 121 extending in the horizontal direction from both ends of the connecting portion 122 in the horizontal direction extend along the thickness direction, and these side plates 121 are opposed to the horizontal direction. Yes. And the dividing line 121b extended in the said thickness direction is formed in the site | part which opposes in the said two side plates 121, respectively. A plurality of these dividing lines 121b are formed at intervals along the vertical direction. These dividing lines 121b are each formed with a length that does not reach the connecting portion 122 along the thickness direction from the free end in the thickness direction of each side plate 121. In each side plate 121, a section is formed between two adjacent dividing lines 121b, and the section is bent so as to go inward in the lateral direction as it goes to the tip in the thickness direction. The pair of sandwiching portions 121a is formed by the two pieces facing the lateral direction formed on the two side plates 121. The pair of sandwiching portions 121 a are fitted so that the second member 120 is positioned on the first member 110 such that the pair of sandwiching portions 121 a are located on both lateral sides of the two erection portions 111. In this embodiment, it is provided at a position deviating from the electrode terminal accommodating spaces 113 and 114 in the vertical direction. In this embodiment, it is provided on both sides of the electrode terminal accommodating spaces 113 and 114 in the vertical direction. However, you may provide the said clamping part in the position corresponding to the said electrode terminal accommodation space in the said vertical direction. Instead of this, the side plate itself may be used as the clamping portion. In this case, the side plate may be bent so as to go inward in the lateral direction as it goes toward the tip in the thickness direction. In any case, the horizontal distance between the pair of holding parts in each part along the vertical direction is smaller than the outer dimension in the horizontal direction of the two erection parts when no load is applied. That's fine. The pair of sandwiching portions 121a is formed by the plate facing in the lateral direction, but the two sandwiching portions may be formed in a rod shape having a round, square, or polygonal cross section, for example. Good.

  16 and 17, and the state shown in FIGS. 18 and 19, the second member 120 is connected to the first member 110 and the pair of holding portions 121a is installed in the two bridges. When fitted so as to be located on both lateral sides of the portion 111, the two mounting portions 111 are pushed inward in the lateral direction by the pair of sandwiching portions 121a to be elastically deformed, and the two electrodes The terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. As shown in FIGS. 18 and 19, in the battery module M, the holding member 121 a in which the second member 120 is paired with the first member 110 is the lateral direction of the two erected portions 111. The two erected parts 111 are pushed inwardly in the lateral direction by the pair of sandwiching parts 121a so as to be positioned on both outer sides, and are elastically deformed. , 114 is narrowed in the lateral direction, and the two erected portions 111 are respectively connected to the electrode terminal 210 or 220 of one battery cell 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. In contact with the contact pressure.

  One end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. That is, one end in the vertical direction of the two side plates 121 is located on both outer sides in the horizontal direction at one end of the two erection parts 111, and through holes are formed in the horizontal direction in the two side plates 121. The rotation shaft 130 is rotatably inserted, and the second member 120 is rotatable about the rotation shaft 130 with respect to the first member 110. Then, when the second member 120 is rotated so that the other end in the vertical direction of the two side plates 121 is substantially separated from the two erection parts 111 in the thickness direction, the second member 120 approaches the second plate 120. The second member 120 is fitted into the first member 110, and the pair of sandwiching portions 121a are located on the both lateral outer sides of the two erected portions 111, respectively. When the second member 120 is rotated in the opposite direction, the second member 120 is detached from the first member 110.

  As shown in FIG. 16 to FIG. A guide portion 111c having a smaller outer dimension is provided. As described in the first embodiment, instead of the guide portion 111c, the thickness of the pair of holding portions 121a on the fitting side with the two construction portions 111 in the thickness direction is changed. You may provide the guide part 121c from which the internal dimension of the said horizontal direction becomes large toward the front-end | tip of a direction. The connector 100 may be provided with both guide portions 121c and 111c.

  As shown in FIG. 19, as described above, the inner edge in the lateral direction of each of the second plates 112 b of the connection portion 112 is one edge in the thickness direction of each of the erection portions 111. In the portion between one of the second plates 112b and one of the installation parts 111, an opening 117 extending in the vertical direction is formed on the side of the one electrode terminal accommodating space 113. In the portion between the other second plate 112b and the other installation part 111, an opening 117 extending in the vertical direction is formed on the other electrode terminal accommodating space 114 side. As a result, the connecting portion 112 of the first member 110 is connected to each of the erected portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two portions between the both ends are connected. Two electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated. Further, the provision of the opening 117 increases the length of the free end 111b. However, the present invention includes an embodiment in which such a slit is not provided.

  In the connector 100 of this embodiment, the locking mechanism is not provided, but the locking mechanism may be provided. As described above, this locking mechanism is a mechanism for locking the second member to the first member when the second member is fitted to the first member. For example, when the second member is fitted to the first member, the installation portion and the sandwiching portion have a portion that faces the lateral direction, of which one is provided with a convex portion and the other is the convex portion. Is provided with a recess capable of being fitted.

  The battery cell connector 100 and the battery module M according to the first embodiment are excluded from the battery cell connector 100 and the battery module M according to the present embodiment, except for the action and effects obtained by the locking mechanism. Although the same operation and effect as in the case of can be obtained, the following operation and effect can be further obtained. In the case of the electrode terminals 210 and 220 of this embodiment, since the tip portions 211 and 221 in the thickness direction of the electrode terminals 210 and 220 are shaped so as to project the peripheral edges outward, the installation portion 111 Contacts the electrode terminals 210 and 220 with contact pressure between the tip portions 211 and 221 and the end face of the battery cell 200. And even if the construction part 111 tries to move in the direction away from the end face of the battery cell 200 along the thickness direction, it cannot be moved by being caught by the tip parts 211 and 221, so the connector 100 is not connected to the electrode terminal 210. , 220 can be prevented. The electrode terminals 210 and 220 of the battery cell 200 of this embodiment have a smooth shape with no overhang and no unevenness like the electrode terminals 210 and 220 of the battery cell 200 of the first embodiment. In this case, the first member can be easily attached to the electrode terminal.

  20 to 22 show a battery cell connector and a battery module according to a fourth embodiment of the present invention. Similar to the first embodiment, the battery module M includes a connector 100 and two battery cells 200.

  As shown in FIG. 30, the two battery cells 200 are arranged adjacent to each other along the vertical direction, as in the first embodiment. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The columnar positive electrode terminal 210 and the columnar negative electrode terminal 220 are provided so as to protrude in the thickness direction on one end face of the battery cell 200 in the thickness direction. In the two battery cells 200, the positive electrode terminal 210 and the negative electrode terminal 220 in each of the battery cells 200 are arranged in the horizontal direction, and one of the two battery cells 200 adjacent to the battery cell 200 is the battery. The positive electrode terminal 210 of the cell 200 and the negative electrode terminal 220 of the other battery cell 200 are arranged so as to be aligned in the vertical direction. The electrode terminals 210 and 220 of the battery cell 200 of this embodiment have a smooth shape with no overhang and no irregularities on the peripheral wall, like the electrode terminals 210 and 220 of the battery cell 200 of the first embodiment. It is. Similarly to the electrode terminals 210 and 220 of the second embodiment, the electrode terminal of this embodiment has a shape in which the tip end portion in the thickness direction of the electrode terminal protrudes to the outside. Good. In the case of this embodiment, since the electrode terminals 210 and 220 are formed in a columnar shape having a central axis extending in the thickness direction, the tip portion in the thickness direction is more in the thickness direction than other portions. The diameter is large and it is formed in a disk shape.

  Similar to the first embodiment, the connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The two erection parts 111 and the connection part 112 are integrally formed by press-molding a single oxygen-free copper plate, and the material of the two erection parts and the connection part is, for example, tin. It may be formed of plated annealed copper, hard copper, other metals, or other conductive materials. The two erection parts and the connection part may be formed separately and then connected. The two construction parts and the connection part may be formed of different materials and connected to each other. In that case, it is sufficient that at least the two erection parts are formed of a conductive and elastic material, and the material forming the erection part is not limitedly interpreted. The two erected portions 111 extend in the vertical direction and face each other in the horizontal direction. The dimension in the thickness direction of the two erected portions 111 is substantially the same as the length of the two electrode terminals 210 and 220 protruding from the end face of the battery cell 200, but may be shorter than the protruding length. However, it may be longer than that. The two erection parts 111 are formed by the plates facing in the lateral direction, but the two erection parts may be formed in a rod shape having a round cross section, a quadrangle, or a polygon, for example.

  The connecting portion 112 is folded back from both lateral edges of the first plate 112a in the thickness direction and overlaps the first plate 112a from one side in the thickness direction. Two second plates 112b. In the connecting portion 112, the two inner edges of the two second plates 112b are arranged so as to face each other. The two end edges are respectively connected to one end edge in the thickness direction of the two erection parts 111. For example, the two end edges of the two second plates are the two erection parts. May be connected to the other end in the thickness direction or in the middle. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. This predetermined length is the distance between the centers of the two electrode terminal accommodating spaces 113 and 114 when viewed in the thickness direction. The first plate 112a of the connecting portion 112 has the same shape as the two electrode terminal accommodating spaces 113, 114 in a portion overlapping the two electrode terminal accommodating spaces 113, 114 when viewed from the thickness direction. A through hole 112c penetrating the first plate 112a is provided. The electrode terminal accommodating spaces 113 and 114 are formed larger than the space occupied by the electrode terminals 210 and 220 of the two battery cells 200 when viewed from the thickness direction. The predetermined length corresponds to the distance between the electrode terminal 210 or 220 of one of the battery cells 200 and the electrode terminal 220 or 210 having a different polarity from that of the other battery cell 200. This distance is the center of the electrode terminal 210 or 220 of one of the battery cells 200 when viewed in the thickness direction and the center of the electrode terminal 220 or 210 of a different polarity from that of the other battery cell 200. Is the distance. The two electrode terminal accommodating spaces 113 and 114 communicate with the external space on one side of the first member 110 in the thickness direction. The two electrode terminal accommodating spaces 113 and 114 are external to the other side of the first member 110 in the thickness direction, that is, the side into which the electrode terminals 210 and 220 enter, through the through holes 112c. It communicates with the space. Since the pair of electrode terminals 210 and 220 with different polarities are formed in a columnar shape having a central axis extending in the thickness direction, the two electrode terminal accommodating spaces 113 and 114 are also correspondingly thicker. It is formed in a cylindrical shape having a central axis extending in the direction, and the through hole 112c is also formed in a circular shape corresponding to this. For this reason, each space 111 is formed with two space forming portions 111a projecting in a circular arc shape toward the outside in the lateral direction and spaced apart by a predetermined length in the longitudinal direction. In the case of this embodiment, the space forming part 111a is formed by bending the erection part 111. However, the space forming part is formed by forming the inner side in the lateral direction of the erection part in a concave shape. Also good. When the pair of electrode terminals of different polarity are formed in a prismatic shape having a central axis extending in the thickness direction or other column shapes, the two electrode terminal accommodating spaces are also correspondingly formed in the thickness direction. It is formed in the shape of a prism having an extending central axis or other columns.

  The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The pair of sandwiching portions 121a and the connection portion 122 are integrally formed by press-molding a single stainless steel plate, but the pair of sandwiching portions and the material of the connection portion are formed. May be made of, for example, a rolled steel plate or other conductive material such as metal, ceramics, or other insulating material. The paired sandwiching portions and the connection portion may be formed separately and then connected. The pair of sandwiching portions and the connection portion may be formed of different materials and connected. The pair of holding portions 121a face each other in the lateral direction. In the case of this embodiment, a plurality of pairs of the sandwiching portions 121a are provided, and the paired sandwiching portions 121a face each other in the lateral direction. Instead of this, only one pair of sandwiching portions may be provided, and the pair of sandwiching portions may be opposed to each other in the lateral direction. The connecting portion 122 is connected to one end in the thickness direction of the sandwiching portion 121a in which the both ends in the lateral direction are paired. For example, the both ends of the connecting portion are paired. Further, it may be connected to the other end in the thickness direction or the middle part of the sandwiching part. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. Here, each part along the vertical direction is defined along the vertical direction of the first member 110 and the second member 120 when the second member 120 is fitted to the first member 110. Further, in each part, the horizontal distance between the pair of sandwiching portions 121a is compared with the lateral outer dimensions of the two erected portions 111 when no load is applied. In the case of this embodiment, side plates facing the lateral direction extend from both ends of the connecting portion 122 in the lateral direction, respectively, along the thickness direction, and the side plates serve as the plate-shaped sandwiching portions 121a. These clamping parts 121a are opposed in the lateral direction. Here, the pair of sandwiching portions 121a are provided at a total of three locations, that is, the longitudinal end portions and the middle portion of the connection portion 122, but the number of pairs is 1, 2, or 4 or more. Also good. Instead of this, a plurality of the clamping portions may be formed from the side plate as employed in the first embodiment. That is, the dividing lines extending in the thickness direction are formed at opposing portions of the two side plates. A plurality of these opposing dividing lines are formed at intervals along the vertical direction. These dividing lines are each formed with a length that does not reach the connecting portion along the thickness direction from the free end in the thickness direction of each side plate. In each of the side plates, a section is formed between two adjacent dividing lines, and the section is bent so as to go inward in the lateral direction as it goes toward the tip in the thickness direction. The pair of sandwiching portions is formed by the two pieces facing the lateral direction formed in the two side plates. When the pair of sandwiching portions are fitted so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two erection portions 111, the second member is fitted to the first member, respectively. , Provided in a position deviating from the electrode terminal accommodating space in the vertical direction, for example, provided on both sides of the electrode terminal accommodating space in the vertical direction. However, you may provide the said clamping part in the position corresponding to the said electrode terminal accommodation space in the said vertical direction. The pair of sandwiching portions 121a is formed by the plate facing in the lateral direction, but the two sandwiching portions may be formed in a rod shape having a round, square, or polygonal cross section, for example. Good.

  21 and 22, the second member 120 and the first member 110 are paired with the clamping portion 121a that is paired with the two erection portions 111 in the lateral direction. When fitted so as to be positioned on both outer sides, the two construction parts 111 are pushed inward in the lateral direction by the pair of sandwiching parts 121a and elastically deformed, and the two electrode terminal accommodating spaces 113, 114 Is configured to narrow in the lateral direction. Further, as shown in FIG. 22, in the battery module M, the second member 120 and the first member 110 are paired with the sandwiching portions 121 a on the both lateral sides of the two erection portions 111. The two installation parts 111 are pushed inward in the lateral direction by the paired holding parts 121a and elastically deformed by the pair of holding parts 121a, and the two electrode terminal accommodating spaces 113, 114 are The two erected portions 111 are narrowed in the lateral direction, and the contact pressure is applied to the electrode terminal 210 or 220 of one of the battery cells 200 and the electrode terminal 220 or 210 of a different polarity from that of the other battery cell 200, respectively. Is touching. In the case of this embodiment, there is no rotation shaft that allows the second member and the first member to rotate freely, and the second member 120 and the first member 110 are completely separated from each other. The second member 120 is fitted into the first member 110.

  As shown in FIG. 20 to FIG. 22, on the fitting side with the pair of sandwiching portions 121a in the thickness direction of the two erected portions 111, the lateral direction toward the distal end in the thickness direction. A guide portion 111c having a smaller outer dimension is provided. As described in the first embodiment, instead of the guide portion 111c, the thickness of the pair of holding portions 121a on the fitting side with the two construction portions 111 in the thickness direction is changed. You may provide the guide part 121c from which the internal dimension of the said horizontal direction becomes large toward the front-end | tip of a direction. The connector 100 may be provided with both guide portions 121c and 111c.

  The connector 100 is provided with a locking mechanism 140 that locks the second member 120 to the first member 110 when the second member 120 is fitted to the first member 110. The locking portion 123 extends from both ends in the longitudinal direction of the connection portion 122 of the second member 120 toward the same side as the side where the clamping portion 121a extends along the thickness direction, and the locking portion A locking piece 123 a that is bent inward in the vertical direction is formed at the tip of 123. On the other hand, at both ends in the vertical direction of the first plate 112a of the first member 110, concave portions 112d that are recessed inward in the vertical direction are formed. When the second member 120 is fitted into the first member 110, the two locking pieces 123a are fitted into the two concave portions 112d, respectively, and the second member 120 is engaged with the first member 110. It is configured to stop.

  From the battery cell connector 100 and the battery module M of this embodiment, the action and effect obtained by the rotating shaft, the action and effect obtained by the free ends, the action obtained by the locking mechanism, and Except for the effects, the same operations and effects as those of the battery cell connector 100 and the battery module M of the first embodiment can be obtained.

  FIG. 23 shows a fifth embodiment of the battery cell connector and the battery module of the present invention. The configuration is the same as that of the first embodiment. That is, the battery module M includes a connector 100 and two battery cells 200. The two battery cells 200 are arranged side by side along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. When the second member 120 is fitted to the first member 110 so that the paired sandwiching portions 121a are located on both lateral sides of the two installation portions 111, the paired sandwiching portions 121a are provided. The two erected portions 111 are pushed inward in the lateral direction by the portion 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, in the battery module M, the second member 120 is fitted to the first member 110 so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two installation portions 111, respectively. The two erected parts 111 are pushed inward in the lateral direction by the pair of sandwiching parts 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are narrowed in the lateral direction. The two erected portions 111 are in contact with the electrode terminals 210 or 220 of one of the battery cells 200 and the electrode terminals 220 or 210 of a different polarity from those of the other battery cell 200 with a contact pressure. In addition, one end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. Further, on the fitting side of the pair of sandwiching portions 121a with the two erected portions 111 in the thickness direction, the guide portion whose inner dimension in the lateral direction increases toward the tip in the thickness direction. 121c is provided. Further, the connecting portion 112 of the first member 110 is connected to each of the erection portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two portions are interposed between the both ends. Electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated. Further, the connector 100 is provided with a locking mechanism 140 that locks the second member 120 to the first member 110 when the second member 120 is fitted to the first member 110.

  In the case of the connector 100, when the second member 120 is fitted to the first member 110 at the longitudinal end portion of the second member 120, the connector 100 is more longitudinal than the first member 110. A protruding protrusion 124 is provided. In this case, the operation of fitting the second member 120 with the protrusion 124 to the first member 110 and the operation of removing the second member 120 from the first member 110 with the protrusion 124 are performed. It becomes possible. As a result, the workability of the work of fitting the second member 120 to the first member 110 and the work of removing the second member 120 from the first member 110 can be improved.

  From the battery cell connector 100 and the battery module M of this embodiment, it is possible to obtain the same operations and effects as those of the battery cell connector 100 and the battery module M of the first embodiment. In addition, the workability of the work of fitting the second member 120 to the first member 110 and the work of removing the second member 120 from the first member 110 can be improved.

  24 and 25 show a sixth embodiment of the battery cell connector and the battery module of the present invention. The configuration is the same as that of the first embodiment. That is, the battery module M includes a connector 100 and two battery cells 200. The two battery cells 200 are arranged side by side along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. When the second member 120 is fitted to the first member 110 so that the paired sandwiching portions 121a are located on both lateral sides of the two installation portions 111, the paired sandwiching portions 121a are provided. The two erected portions 111 are pushed inward in the lateral direction by the portion 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, in the battery module M, the second member 120 is fitted to the first member 110 so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two installation portions 111, respectively. The two erected parts 111 are pushed inward in the lateral direction by the pair of sandwiching parts 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are narrowed in the lateral direction. The two erected portions 111 are in contact with the electrode terminals 210 or 220 of one of the battery cells 200 and the electrode terminals 220 or 210 of a different polarity from those of the other battery cell 200 with a contact pressure. In addition, one end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. Further, on the fitting side of the pair of sandwiching portions 121a with the two erected portions 111 in the thickness direction, the guide portion whose inner dimension in the lateral direction increases toward the tip in the thickness direction. 121c is provided. Further, the connecting portion 112 of the first member 110 is connected to each of the erection portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two portions are interposed between the both ends. Electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated.

  The connector 100 is provided with a locking mechanism 140 for locking the second member 120 to the first member 110 and the second member 120 to the first member 110. The locking mechanism 140 is provided in place of the locking mechanism 140 of the first embodiment. The locking mechanism 140 includes through holes 111d and 121d and a pin 143. When the second member 120 is fitted into the first member 110, the erection part 111 and the clamping part 121a have a portion facing the lateral direction. The through hole 111d penetrating in the lateral direction is formed in the part of the two erection parts 111, and the through hole 121d penetrating in the lateral direction is formed in the part of the pair of holding parts 121a. Is formed. And the said pin 143 which fits in the said through-hole 111d and the said through-hole 121d in series is provided. Here, the through-holes 111d and 121d are provided in the erection part 111 and the clamping part 121a at the end in the vertical direction, but the erection part and the clamping part in the other part in the vertical direction A through hole may be provided. In this way, the locking is performed by passing the pin 143 through the through holes 111d and 121d. As a result, the second member 120 fitted into the first member 110 can be made difficult to come off from the first member 110.

  From the battery cell connector 100 and the battery module M of this embodiment, it is possible to obtain the same operations and effects as those of the battery cell connector 100 and the battery module M of the first embodiment. In addition, the second member 120 fitted to the first member 110 can be made difficult to come off from the first member 110.

  26 and 27 show a seventh embodiment of the battery cell connector and the battery module of the present invention. The configuration is the same as that of the first embodiment. That is, the battery module M includes a connector 100 and two battery cells 200. The two battery cells 200 are arranged side by side along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. When the second member 120 is fitted to the first member 110 so that the paired sandwiching portions 121a are located on both lateral sides of the two installation portions 111, the paired sandwiching portions 121a are provided. The two erected portions 111 are pushed inward in the lateral direction by the portion 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, in the battery module M, the second member 120 is fitted to the first member 110 so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two installation portions 111, respectively. The two erected parts 111 are pushed inward in the lateral direction by the pair of sandwiching parts 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are narrowed in the lateral direction. The two erected portions 111 are in contact with the electrode terminals 210 or 220 of one of the battery cells 200 and the electrode terminals 220 or 210 of a different polarity from those of the other battery cell 200 with a contact pressure. In addition, one end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. Further, on the fitting side of the pair of sandwiching portions 121a with the two erected portions 111 in the thickness direction, the guide portion whose inner dimension in the lateral direction increases toward the tip in the thickness direction. 121c is provided. Further, the connecting portion 112 of the first member 110 is connected to each of the erection portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two portions are interposed between the both ends. Electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated.

  The connector 100 is provided with a locking mechanism 140 that locks the second member 120 to the first member 110 when the second member 120 is fitted to the first member 110. The locking mechanism 140 is provided in place of the locking mechanism 140 of the first embodiment. The locking mechanism 140 includes a lock member 144. The lock member 144 is U-shaped. Both ends of the lock member 144 are connected to the pair of sandwiching portions 121a through the rotation shaft 144a facing in the lateral direction outside the pair of sandwiching portions 121a. The locking member 144 is a retracted position (in FIG. 26) where the central portion of the locking member 144 is located on the opposite side to the fitting side with the erection portion 111 in the thickness direction of the paired clamping portion 121a. The center portion is provided so as to be rotatable between the center portion and a lock position (position shown in FIG. 27) applied to the longitudinal end portion of the erection portion 111. In this case, a groove 111e is formed in the longitudinal end portion of the erection portion 111 from the end portion in the longitudinal direction, and the central portion of the lock member 144 at the lock position is the groove 111e. It is supposed to be hung on. In this way, the lock member 144 is engaged with the first member 110 by rotating the lock member 144 from the retracted position to the lock position, and the locking is performed. As a result, the second member 120 fitted into the first member 110 can be made difficult to come off from the first member 110.

  From the battery cell connector 100 and the battery module M of this embodiment, it is possible to obtain the same operations and effects as those of the battery cell connector 100 and the battery module M of the first embodiment. In addition, the second member 120 fitted to the first member 110 can be made difficult to come off from the first member 110.

  28 and 29 show an eighth embodiment of the battery cell connector and the battery module of the present invention. The configuration is the same as that of the first embodiment. That is, the battery module M includes a connector 100 and two battery cells 200. The two battery cells 200 are arranged side by side along the vertical direction. The battery cell 200 has a pair of electrode terminals 210 and 220 having different polarities. The connector 100 includes a first member 110 and a second member 120. The first member 110 includes two erection parts 111 and a connection part 112 that connects the two erection parts 111. The connection portion 112 has two columnar electrode terminal receiving spaces 113 and 114 that extend in the thickness direction between the two erection parts 111 while separating the two erection parts 111 in the lateral direction. Are connected so as to be separated from each other by a predetermined length. The second member 120 includes at least a pair of sandwiching portions 121a and a connection portion 122 that connects the pair of sandwiching portions 121a. The connecting portion 122 is configured such that the paired holding portions 121a are connected to the two erected portions 111 when the horizontal interval of the paired holding portions 121a is unloaded at each portion along the vertical direction. Are connected so as to be smaller than the outer dimensions in the horizontal direction. When the second member 120 is fitted to the first member 110 so that the paired sandwiching portions 121a are located on both lateral sides of the two installation portions 111, the paired sandwiching portions 121a are provided. The two erected portions 111 are pushed inward in the lateral direction by the portion 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are configured to narrow in the lateral direction. Further, in the battery module M, the second member 120 is fitted to the first member 110 so that the pair of sandwiching portions 121a are positioned on both lateral sides of the two installation portions 111, respectively. The two erected parts 111 are pushed inward in the lateral direction by the pair of sandwiching parts 121a and elastically deformed, and the two electrode terminal accommodating spaces 113 and 114 are narrowed in the lateral direction. The two erected portions 111 are in contact with the electrode terminals 210 or 220 of one of the battery cells 200 and the electrode terminals 220 or 210 of a different polarity from those of the other battery cell 200 with a contact pressure. In addition, one end of the second member 120 in the vertical direction is rotatably provided at one end of the first member 110 in the vertical direction via a rotation shaft 130 extending in the horizontal direction. Further, on the fitting side of the pair of sandwiching portions 121a with the two erected portions 111 in the thickness direction, the guide portion whose inner dimension in the lateral direction increases toward the tip in the thickness direction. 121c is provided. Further, the connecting portion 112 of the first member 110 is connected to each of the erection portions 111 at least at both ends in the longitudinal direction of the first member 110, and the two portions are interposed between the both ends. Electrode terminal accommodating spaces 113 and 114 are formed. In addition, the electrode terminal accommodating space 113 is divided between the one electrode terminal accommodating space 113 in the one erection portion 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 113. The free end 111b is formed on the side. Further, the electrode terminal accommodating space 114 is divided by dividing the other electrode terminal accommodating space 114 in the other installation part 111 and the connecting portion 112 at the end closer to the electrode terminal accommodating space 114. The free end 111b is formed on the side. Further, a deformation allowing space 115 is formed between each of the free ends 111b and the installation portion 111 facing each of the free ends 111b, in which each of the elastically deformed free ends 111b is accommodated.

  The connector 100 is provided with a locking mechanism 140 that locks the second member 120 to the first member 110 when the second member 120 is fitted to the first member 110. The locking mechanism 140 is provided in place of the locking mechanism 140 of the first embodiment. The locking mechanism 140 includes a recess 145, a through hole 146, and a locking member 147. The concave portion 145 is formed to be recessed on the outer surface in the horizontal direction at one end in the vertical direction of the two erected portions 111. The through-holes 146 are respectively provided from the portion corresponding to the concave portion 145 in the pair of sandwiching portions 121a when the second member 120 is fitted to the first member 110 to the periphery. The clamping part 121a penetrates in the lateral direction. Here, the through-hole 146 is provided from the portion corresponding to the concave portion 145 in the clamping portion 121a to the peripheral edge along the vertical direction. However, the through-hole 146 is a portion corresponding to the concave portion in the clamping portion. To the peripheral edge along the thickness direction or other directions. The locking member 147 is elastic and has a U shape. The locking member 147 is formed to have a thickness that fits within the width of the through hole 146, and provided with protrusions 147a that protrude inward in the lateral direction and can be fitted into the recesses 145 at both ends. . In this way, when the second member 120 is fitted into the first member 110, the locking member 147 is inserted into the through hole 146 from the peripheral side of the clamping portion 121 a to a portion corresponding to the concave portion 145. When it is inserted, the protruding portion 147a is inserted into the concave portion 145, whereby the locking is performed. As a result, the second member 120 fitted into the first member 110 can be made difficult to come off from the first member 110.

  From the battery cell connector 100 and the battery module M of this embodiment, it is possible to obtain the same operations and effects as those of the battery cell connector 100 and the battery module M of the first embodiment. In addition, the second member 120 fitted to the first member 110 can be made difficult to come off from the first member 110.

  The battery cell connector and the battery module of the present invention include embodiments in which the features of the embodiments and modifications described above are combined. Therefore, as another embodiment, for example, the following modifications are included in the first to eighth embodiments of the battery cell connector and the battery module. That is, as an example of the modification, in an embodiment provided with a rotation shaft that allows the second member and the first member to turn freely, the second member and the first member can be turned freely. A modification in which the second member and the first member are completely separated from each other without providing a moving shaft is included, and conversely, the second member is included. An embodiment in which the second member is fitted to the first member from a state in which the second member and the first member are completely separated from each other without a pivot shaft that allows the first member and the first member to pivot freely. The embodiment includes a modification in which a rotation shaft that allows the second member and the first member to rotate is provided. Moreover, as an example of the above-described modification, in the embodiment provided with the above-mentioned guide part, a modification example in which the above-mentioned guide part is not included is included. Is included. Further, as the above-mentioned modification, in the embodiment provided with the above-mentioned free end and the above-mentioned deformation-permitted space of the above-mentioned erection part, a modification example in which the above-mentioned free end and the deformation-permitted space are not provided is included. In an embodiment that does not include a permissible space, a modification in which the free end and the permissible deformation space are provided is included. Further, as an example of the modification, in the embodiment in which the protrusion is provided in the longitudinal end portion of the second member, a modification in which the protrusion is not provided is included, and conversely in the embodiment in which the protrusion is not provided. The modification which provided the said processus | protrusion is included. Furthermore, as an example of the modification, the embodiment including the locking mechanism includes a modification in which the locking mechanism is not provided, and conversely, in the embodiment not including the locking mechanism, the locking mechanism is provided. Variations are included. In that case, as the locking mechanism, one of the erection portion and the clamping portion has the convex portion and the other has the concave portion, the locking mechanism having the through hole and the pin, and a U-shaped A locking mechanism including a locking member, and a locking mechanism including the concave portion provided in the two erection portions, the through hole provided in the paired clamping portion, and the U-shaped locking member. Any modification using any of the above-described locking mechanisms is included. And the modification which combined these embodiment and modifications is also contained. Furthermore, the embodiment described above merely shows some examples of the connector of the battery cell and the battery module of the present invention. Therefore, the description of these embodiments does not limit the connector of the battery cell and the battery module of the present invention.

M battery module 100 connector 110 first member 111 installation part 111b free end 111c guide part 111d through hole 113 electrode terminal accommodation space 114 electrode terminal accommodation space 115 deformation allowable space 120 second member 121a clamping part 121c guide part 121d through hole 122 connection Portion 124 Protrusion 130 Rotating shaft 140 Locking mechanism 141 Protruding portion 142 Recessed portion 143 Pin 144 Lock member 144a Rotating shaft 145 Recessed portion 146 Through hole 147 Locking member 147a Protruding portion 200 Battery cell 210 Electrode terminal 220 Electrode terminal

Claims (12)

When taking a vertical direction, a horizontal direction, and a thickness direction perpendicular to each other,
The two erected portions that extend in the longitudinal direction and face each other in the lateral direction and have elasticity and the two erected portions are separated from each other in the lateral direction and the thickness between the two erected portions. A first member having a connecting portion for connecting two columnar electrode terminal accommodating spaces extending in a direction so as to be formed apart from each other by a predetermined length in the vertical direction;
The at least one pair of sandwiching portions facing in the lateral direction and the pair of sandwiching portions at each portion along the longitudinal direction, the spacing between the pair of sandwiching portions in the lateral direction is the above when no load is applied. A second member having a connection part connected to be smaller than the lateral dimension of the two erection parts,
When the second member is fitted to the first member so that the pair of holding portions are positioned on both lateral sides of the two installation portions, the two holding portions are installed by the pair of holding portions. A battery cell connector configured such that the portion is pushed inward in the lateral direction and elastically deformed, and the two electrode terminal accommodating spaces are narrowed in the lateral direction. Each of the electrode terminal accommodating spaces has a pair of column-shaped electrode terminals with different polarities provided so as to protrude from the end face in a direction parallel to each other, and the electrode terminals of two battery cells arranged adjacent to each other. It is formed larger than the space it occupies in the thickness direction,
The battery cell connector according to claim 1, wherein the predetermined length corresponds to a distance between the electrode terminal of one of the battery cells and the electrode terminal of a different polarity from that of the other battery cell.   The one end of the said 2nd member of the said 2nd member is provided in the one end of the said longitudinal direction of the said 1st member so that rotation is possible via the rotating shaft extended in the said horizontal direction. Battery cell connector.   A guide portion provided on the fitting side of the pair of sandwiching portions with the two erected portions in the thickness direction and having a larger inner dimension in the lateral direction toward the distal end in the thickness direction; Among the guide portions that are provided on the fitting side with the pair of sandwiching portions in the thickness direction of the two erection portions and the outer dimension in the lateral direction decreases toward the tip in the thickness direction, The battery cell connector according to any one of claims 1 to 3, comprising at least one. The connection part of the first member is connected to each of the installation parts at least at both ends in the longitudinal direction of the first member, and the two electrode terminal accommodating spaces are formed between these both ends. Has been
One electrode terminal receiving space in one of the installation parts and the connecting portion at the end close to the electrode terminal receiving space are divided to form a free end on the electrode terminal receiving space side. And
The other electrode terminal accommodating space in the other construction part and the connecting portion at the end nearer to the electrode terminal accommodating space are divided to form a free end on the electrode terminal accommodating space side. And
The deformation | transformation tolerance space in which each said free end which elastically deformed is accommodated is formed between each said free end and the said construction part which each said free end opposes. The battery cell connector according to item 1.   2. The protrusion that protrudes in the vertical direction from the first member when the second member is fitted to the first member is provided at an end of the second member in the vertical direction. The battery cell connector according to claim 5.   The battery according to any one of claims 1 to 6, wherein a locking mechanism is provided for locking the second member to the first member when the second member is fitted to the first member. Cell connector.   The locking mechanism is provided on the convex portion provided on one of the laterally opposed portions of the erection portion and the clamping portion when the second member is fitted on the first member, and on the other side. The battery cell connector according to claim 7, further comprising a concave portion into which the convex portion can be fitted.   The locking mechanism includes through-holes that are respectively provided in the lateral direction at portions facing the installation portion and the clamping portion when the second member is fitted into the first member; and The battery cell connector according to claim 7, further comprising a pin that fits into the through hole.   The locking mechanisms are respectively connected to the paired clamping parts via the laterally rotating shafts outside the paired clamping parts at both ends, and the central part is the paired. Rotation between a retracted position located on the opposite side to the fitting side with the erection part in the thickness direction of the clamping part and a lock position where the center part is engaged with the longitudinal end of the erection part The battery cell connector according to claim 7, further comprising a U-shaped locking member provided so as to be free.   The locking mechanism includes a recess formed to be recessed in the lateral outer surface at one end in the longitudinal direction of the two erection parts, and the pair when the second member is fitted into the first member. In the sandwiching part that is formed in a through hole that penetrates in the lateral direction provided from the part corresponding to the concave part to the periphery, and a thickness that fits the width of the through hole, The battery cell connector according to claim 7, further comprising: a U-shaped locking member having elasticity that protrudes inward in the lateral direction and is provided with protrusions that can be fitted into the recesses. The battery cell connector according to any one of claims 1 to 11,
Two battery cells arranged side by side having a pair of electrode terminals of columnar different poles provided so as to protrude from the end faces in directions parallel to each other,
The predetermined length corresponds to the distance between the electrode terminal of one of the battery cells and the electrode terminal of a different polarity from that of the other battery cell,
The second member is fitted to the first member so that the paired holding portions are located on both lateral sides of the two erected portions, respectively, and the two erected portions are installed by the paired holding portions. The two electrode terminal accommodating spaces are narrowed in the lateral direction, and the two installation parts are respectively connected to the electrode terminal of the one battery cell and the other. A battery module in contact with the electrode terminal having a different polarity from that of the battery cell with contact pressure.

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