JP2012174507A - Battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery module which can reduce workload of wiring means on wiring necessary to connect a battery monitoring device and electric cells.SOLUTION: The battery module comprises a module case which accommodates a plurality of electric cells, a battery monitoring device which electrically monitors the electric cells, and a plurality of wiring means electrically connected to output terminals of the electric cells. The module case consists of a case body to support the electric cells and a lid to cover the electric cells. The battery monitoring device is electrically connected to the plurality of wiring means via a pair of male and female connectors, of which the female side connector is electrically connected to the battery monitoring device and the male side connector has a connector socket therefor attached to the lid. A plurality of wiring paths connecting prescribed positions inside the connector socket and connection positions for the output terminals of the electric cells are set, and the respective wiring means are disposed along their corresponding wiring paths, with the tip of each wiring means introduced into the connector socket constituting a connector pin of the male side connector.

Description

  The present invention relates to a battery module in which a plurality of single cells are accommodated in a module case, and more specifically, a plurality of single cells accommodated in a module case, and a battery monitoring device that electrically monitors the plurality of single cells. Relates to a battery module electrically connected via a plurality of wiring means.

  Conventionally, battery modules have been provided as power sources for various devices. The battery module includes a plurality of unit cells, a module case that accommodates the plurality of unit cells, a battery monitoring device that electrically monitors the plurality of unit cells, an output terminal of the plurality of unit cells, and a battery And a plurality of wiring means for electrically connecting the monitoring device, and a plurality of single cells are electrically connected to form an assembled battery.

  The module case includes a case body that supports a plurality of unit cells, and a lid that covers the plurality of unit cells supported by the case body. The case body generally has a box shape with one surface (for example, an upper surface) open, and is configured to accommodate a plurality of single cells from the open portion. The lid is formed with a plurality of openings in accordance with the arrangement of the output terminals of the plurality of single cells housed in the case body (connection means for electrically connecting the output terminals), It is configured to be connectable to the case body while covering the unit cell. Thus, the module case covers the plurality of single cells supported by the case body with the lid, so that the output terminals of the single cells (the output terminals are electrically connected to each other from the openings formed in the lid). The connection means connected to is exposed.

  Each wiring means is composed of, for example, a lead wire, one end side is electrically connected to the battery monitoring device, and the other end side is connected to an output terminal (connecting means) exposed from each opening of the lid. More specifically, this type of battery module uses a pair of male and female connectors for connection between the battery monitoring means and the plurality of wiring means in consideration of replacement of the battery monitoring device and the like. That is, in this type of battery module, one of the male and female connectors is connected to the battery monitoring device, and each wiring is connected to either of the male and female connectors. One end of the means is connected, and the battery monitoring means and the plurality of wiring means are electrically connected by connecting a pair of male and female connectors. Each wiring means is electrically connected by attaching a connection terminal such as a round terminal to the other end and screwing the connection terminal to the corresponding output terminal (connection means). . Thereby, the battery module is in a state where the battery monitoring means and the single cell are electrically connected via the wiring means.

  In this type of battery module, the battery monitoring unit obtains electrical information (for example, voltage) from the unit cell, and monitors a plurality of unit cells (for example, monitoring of charge state, voltage, etc.). (For example, refer to Patent Document 1).

JP 2001-266825 A

  By the way, since the battery module of the said structure is equipped with the several wiring means, when performing an assembly, replacement | exchange of components, etc., the connection operation of the wiring means with respect to connection objects, such as a connector and a connection means, is carried out several times. There is a need to do. For this reason, in this type of battery module, the wiring work of the wiring means is complicated and a heavy work load, and there is a risk of incorrect wiring due to the complexity.

  Therefore, an object of the present invention is to provide a battery module that can reduce the work burden on the wiring of the wiring means for connecting the battery monitoring device and the single cell, and prevent erroneous wiring.

  A battery module according to the present invention includes a plurality of unit cells, a module case that accommodates the plurality of unit cells, a battery monitoring device that electrically monitors the plurality of unit cells, and an output of the plurality of unit cells. A plurality of wiring means electrically connected to the terminals, and the module case includes a case main body that supports the plurality of unit cells, and a lid that covers the plurality of unit cells, and the battery monitoring device. In the battery module electrically connected to the plurality of wiring means via a pair of male and female connectors, a female connector of the pair of male and female is electrically connected to the battery monitoring device, A connector socket of a male connector of the pair of male and female connectors is attached to the lid, and a predetermined position in the connector socket and a connection position to the output terminal of each unit cell A plurality of wiring paths are set, each wiring means is arranged along the corresponding wiring path, and the end of each wiring means introduced into the connector socket constitutes a connector pin of the male connector It is characterized by. In addition, "the connection position with respect to the output terminal of a cell" is a concept including the connection position with respect to the connection means which connected the output terminals of the cell other than the output terminal of a cell.

  According to such a battery module, the female connector of the pair of male and female connectors is electrically connected to the battery monitoring device, and the connector socket of the male connector of the pair of male and female connectors is connected to the lid. Are attached, and a plurality of wiring paths connecting a predetermined position in the connector socket and the output terminal of each unit cell are set, and each wiring means is arranged along a corresponding wiring path. The position of the unit cell to be connected to the output terminal and the predetermined position in the connector socket constituting the male connector (position corresponding to the arrangement of the contacts to be connected among the plurality of contacts provided on the female connector) It is arranged in a state straddling. Therefore, the battery module having the above configuration is properly arranged without miswiring each wiring means.

  Moreover, since the end of each wiring means introduced into the connector socket constitutes the connector pin of the male connector, the battery module having the above configuration merely arranges each wiring means along the wiring path. Each wiring means can be electrically connected to the female connector attached to the battery monitoring device. Therefore, the battery module having the above configuration can be in a state where the plurality of wiring means and the battery monitoring device are electrically connected by connecting a pair of male and female connectors. The battery monitoring device can be replaced or repaired by releasing the connection.

  As described above, the battery module having the above-described configuration does not need to perform an operation of individually connecting the respective wiring means while confirming the arrangement of the plurality of pins or contacts provided in the connector. Work burden can be reduced.

  In this case, each wiring path is constituted by a groove formed on the upper surface of the lid, and each wiring means is formed in a shape corresponding to the form of the corresponding wiring path, and each wiring means is fitted in each groove. Preferably it is. In this way, since the wiring means can be arranged only in the wiring route corresponding to the form, each wiring means is arranged in the connector socket at a predetermined position (a position corresponding to the contact of the female connector to be connected). It can arrange | position reliably in the state over the connection position with respect to the output terminal of the cell which should be connected. Accordingly, each wiring means is not arranged at a position that is not a target of connection, so that erroneous connection can be reliably prevented.

  The battery module according to the present invention includes a plurality of unit cells, a module case that accommodates the plurality of unit cells, a connection means that connects output terminals of the unit cells, and a battery monitor that performs electrical monitoring of the unit cells. A battery module comprising: a device; wiring means for electrically connecting the connection means and the battery monitoring device; and an end of the wiring means has an elastic structure, and the elastic structure is in pressure contact with the connection means. And are electrically connected.

  According to the battery module having the above configuration, since the end of the wiring means has an elastic structure, and the elastic structure is pressed and electrically connected to the connection means, a round terminal or the like is connected to the wiring means. Each wiring means can be electrically connected to the connecting means without attaching the connecting terminal and screwing or the like, and the burden on the wiring work of the wiring means can be reduced.

  As described above, according to the battery module of the present invention, it is possible to reduce the work burden on the wiring of the wiring means for connecting the battery monitoring device and the unit cell, and to prevent the erroneous wiring. Can play.

The disassembled perspective view of the battery module which concerns on 1st embodiment of this invention is shown. The whole perspective view of the lid which constitutes the module case with which the battery module concerning a first embodiment is provided is shown. The whole perspective view of the several wiring means with which the battery module which concerns on 1st embodiment is provided is shown. It is a perspective view for demonstrating the assembly operation of the battery module which concerns on 1st embodiment, (a) shows the state which accommodated the several cell in the module case, (b) is a module case ( A state in which a plurality of wiring means are arranged on the lid) is shown. The whole battery module perspective view concerning a first embodiment is shown. The disassembled perspective view of the battery module which concerns on 2nd embodiment of this invention is shown. The whole perspective view of the lid which constitutes the module case with which the battery module concerning a second embodiment is provided is shown. The whole perspective view of the several wiring means with which the battery module which concerns on 2nd embodiment is provided is shown. It is the elements on larger scale of the battery module which concerns on 2nd embodiment, Comprising: (a) shows the fragmentary sectional view of the wiring means vicinity in the state which has arrange | positioned the wiring means in the wiring path (groove) of a cover body, (b) These show the partial expanded side view containing the elastic means which pressed the connection means which connected the output terminals of the cell, and this connection means. It is a perspective view for demonstrating the assembly operation | work of the battery module which concerns on 2nd embodiment, (a) shows the state which accommodated the several cell in the module case, (b) is a module case ( A state in which a plurality of wiring means are arranged on the lid) is shown. The whole battery module perspective view concerning a second embodiment is shown.

  Hereinafter, the battery module which concerns on 1st embodiment of this invention is demonstrated, referring an accompanying drawing.

  As shown in FIG. 1, the battery module according to the present embodiment includes a plurality of unit cells 2, connection means 3 that electrically connects output terminals 21 a and 21 b of the plurality of unit cells 2, and the plurality of unit cells. 2, a module case 4 that houses 2, a battery monitoring device 5 that electrically monitors the plurality of unit cells 2, and a plurality of wirings that are electrically connected to the output terminals 21 a and 21 b of the plurality of unit cells 2. Means 6a and 6b are provided.

  Each unit cell 2 includes a battery case 20 containing a power generation element (not shown), and a pair of output terminals (a positive output terminal and a negative output terminal) 21a and 21b arranged outside the battery case 20. It has. In the cell 2 according to this embodiment, the battery case 20 is formed in a hexahedron shape (square box shape), and one of the six surfaces constituting the outer surface of the battery case 20 is the upper surface, and the module case 4 Housed inside.

  Accordingly, the pair of output terminals 21a and 21b are arranged on the upper surface of the battery case 20 with a predetermined interval. Each output terminal 21a, 21b is formed in a rod shape, and is extended on the upper surface so as to form a right angle or a substantially right angle with respect to the planar upper surface of the battery case 20. Each output terminal 21a, 21b is formed with a male screw on the outer periphery so that a nut N can be screwed together. And each output terminal 21a, 21b is electrically connected with respect to the electric power generation element accommodated in the battery case 20, and can output the electric power supplied from an electric power generation element.

  In the battery module 1 according to this embodiment, the plurality of single cells 2 are arranged in a line. More specifically, in the plurality of unit cells 2, the output terminals 21a and 21b are aligned in two rows, and the positive output terminal 21a and the negative output terminal 21b are alternately arranged in each row. Are arranged as follows. The battery module 1 according to the present embodiment includes adjacent unit cells except for one output terminal 21a of the unit cell 2 at the top in the alignment direction and the other output terminal 21b of the unit cell 2 at the end in the alignment direction. The two output terminals 21 a and 21 b having different polarities are electrically connected to each other through the connection means 3. As a result, the battery module 1 includes a plurality of single cells 2 connected in series to form an assembled battery, and one single output terminal 21a of the single cell 2 at the top of the alignment direction and the single cell 2 at the end of the alignment direction. The other output terminal 21b constitutes an output terminal of the battery pack (positive output terminal A, negative output terminal B).

  The connection means 3 electrically connects the output terminals 21a and 21b (output terminals 21a and 21b having different polarities) of adjacent unit cells 2 and is made of a conductive material. The connection means 3 according to the present embodiment is constituted by a metal plate. The connecting means 3 according to the present embodiment is provided with a pair of through holes (not numbered) set to a hole diameter through which the output terminals 21a and 21b can be inserted. The pair of through holes are arranged at intervals corresponding to the arrangement of the output terminals 21a and 21b (the output terminals 21a and 21b having different polarities in the same row) of the adjacent unit cells 2.

  The module case 4 includes a case main body 40 that supports the plurality of unit cells 2, and a lid body 41 that covers the plurality of unit cells 2 supported by the case body 40.

  The case body 40 is formed in a box shape with one surface (for example, the upper surface) opened. That is, the case body 40 includes a bottom plate 400 and a peripheral wall 401 that stands up from the outer periphery of the bottom plate 400. As for case body 40 concerning this embodiment, bottom board 400 is formed in the shape of a quadrangle in plane view. Accordingly, the peripheral wall 401 includes flat wall portions 401 a, 401 b, 401 c, 401 d extending upward from each of the four sides constituting the outer periphery of the bottom plate 400, and the adjacent wall portions 401 a, 401 a, It is formed by connecting 401b, 401c, and 401d. As a result, the case body 40 has an opening 402 formed at the upper end, and is configured to be able to accommodate the plurality of single cells 2 from the opening 402. The case body 40 has an opening on the peripheral wall 401 (wall portions 401a, 401b, 401c, 401d) that communicates the inside and the outside in order to discharge the heat generated with the charging / discharging of the accommodated unit cell 2 to the outside. It may be formed.

  The lid body 41 can be connected to the case body 40 in a state in which the plurality of single cells 2 housed in the case body 40 are covered (a state in which the opening 402 of the case body 40 is closed). That is, the module case 4 is formed by connecting the lid body 41 and the case main body 40. Note that the case body 40 and the lid body 41 are connected to, for example, one of a claw and a recess for locking at the upper end portion (at least one of the inner peripheral surface and the outer peripheral surface) of the peripheral wall 401 of the case main body 40. A lock that can be engaged with either the locking claw or the recess of the case main body 40 with respect to the lower end portion (for example, the lower end portion of an upright wall portion 411 described later) of the lid 41 that is the counterpart It is only necessary to provide a recess or a claw for engagement, and to engage one of the other locking claws with one of the locking recesses.

  As shown in FIG. 2, the lid body 41 according to the present embodiment has a top plate portion 410 formed in a square shape corresponding to the opening 402 of the case body 40, and upward from the outer periphery of the top plate portion 410. And a standing wall portion 411 extending. The top plate portion 410 is formed with openings 403 and 404 that expose the output terminals 21a and 21b of the plurality of single cells 2 housed in the case body 40.

  More specifically, the battery module 1 according to the present embodiment includes an uppermost output terminal 21a (output terminal A for the positive electrode of the assembled battery) in the current flow direction of the plurality of unit cells 2 arranged in alignment. The connecting terminals 3 connect the output terminals 21a and 21b of the adjacent unit cells 2 except for the most downstream output terminal 21b (the output terminal B for the negative electrode of the assembled battery) in the current flow direction of the plurality of unit cells 2. Since the lid 41 according to this embodiment is electrically connected, the openings 403 and 404 are aligned with a plurality of openings (hereinafter referred to as connection means exposed portions) 403 corresponding to the connection means 3. A pair of openings (hereinafter referred to as terminal exposed portions) corresponding to the most upstream and most downstream output terminals 21a and 21b (output terminals A and B of the assembled battery) in the current flow direction of the plurality of single cells 2 in a state. 404 is formed.

  As a result, the battery module 1 according to the present embodiment is configured so that each of the connecting means is in a state where the plurality of single cells 2 accommodated in the case body 40 are covered with the lid body 41 (the lid body 41 is coupled to the case body 40). The connecting means 3 and the output terminals 21a and 21b electrically connected by the connecting means 3 are exposed from the exposed portion 403, and the output terminals A and B of the assembled battery are exposed from each terminal exposed portion 404. Yes.

  The battery module 1 according to the present embodiment electrically connects the plurality of wiring means 6a and 6b connected to the plurality of single cells 2 and the battery monitoring device 5 through a pair of male and female connectors 7 and 8. (See FIGS. 1 and 5).

  Accordingly, in the battery module 1 according to the present embodiment, the connector socket 70 of the male connector 7 of the pair of male and female connectors 7 and 8 is attached to the lid body 41. In the present embodiment, the connector socket 70 is provided on the top surface of the top plate 410 of the lid 41. The connector socket 70 is formed on the top plate portion 410 so as to surround a predetermined area (area where the connector pins of the male connector 7 are disposed).

  More specifically, in the connector socket 70, the wiring means 6a and 6b are arranged on the top plate portion 410 in a region where the connector pins of the male connector 7 are arranged (hereinafter referred to as pin arrangement region) PA and an outer region. In order to be able to be arranged in a straddling state, it is formed in a state where a part thereof is opened. That is, the connector socket 70 is erected on the top plate portion 410 so as to surround the pin arrangement area PA, and an open portion 72 that connects the pin arrangement area PA and the outer area is formed between both ends in the circumferential direction. is doing.

  The lid body 41 is provided with a plurality of wiring paths 412a and 412b that connect predetermined positions in the connector socket 70 and connection positions of the single cells 2 with respect to the output terminals 21a and 21b. That is, the lid 41 is a position corresponding to a hole (not shown) provided in the female connector 8 into which the connector pin of the male connector 7 is inserted, and the wiring means 6 a and 6 b are connected to the contacts of the female connector 8. A plurality of independent wiring paths 412a and 412b are set by connecting a position to be connected and a position where the output terminals 21a and 21b can be connected directly or indirectly.

  More specifically, the lid 41 according to this embodiment is inserted into a predetermined position (connector pin 71 of the male connector 7) in the connector socket 70 from a terminal exposed portion 404 formed on the top plate portion 410. Two first wiring paths (wiring paths) corresponding to holes (not shown) provided in the female connector 8 and extending to the contacts of the female connector 8 where the wiring means 6a and 6b are to be connected) 412a and a predetermined position in the connector socket 70 from the connecting means exposed portion 403 formed on the top plate 410 (corresponding to a hole (not shown) provided in the female connector 8 into which the connector pin 71 of the male connector 7 is inserted) A plurality of second wiring paths (wiring paths) 412b extending to the contact points of the female connector 8 and extending to the wiring means 6a, 6b are set. In the battery module 1 according to the present embodiment, each of the wiring paths 412a and 412b is configured by a groove formed on the top surface of the top plate portion 410 of the lid body 41.

  The upright wall portion 411 is erected on the outer periphery of the top plate portion 410. In the standing wall portion 411 according to the present embodiment, a portion adjacent to each terminal exposed portion 404 is cut off. Thereby, when the same kind of battery modules 1 are arranged side by side, the output terminals 21a and 21b of the adjacent battery modules 1 (assembled batteries) can be connected by the connecting means 3. That is, the standing wall portion 411 is partially cut so as to prevent the connection means 3 from interfering when the output terminals 21a and 21b of the adjacent battery modules 1 (assembled batteries) are connected by the connection means 3. It is formed in a hung state.

  Returning to FIG. 1, the battery monitoring device 5 is a control circuit board configured to be able to monitor the state of charge based on the voltage between the output terminals 21 a and 21 b of the unit cell 2, and in this embodiment, the female connector 8. Is attached. The battery monitoring device 5 according to the present embodiment is set to a size that can be arranged between the output terminals 21 a and 21 b of the single cell 2.

  Each of the plurality of wiring means 6a, 6b is electrically connected to the output terminals 21a, 21b of the plurality of single cells 2 (see FIG. 5). In the present embodiment, the wiring means 6a and 6b are arranged along the wiring paths 412a and 412b set on the top plate 410 of the lid 41, and the end portions introduced into the connector socket 70 are male. A connector pin 71 of the side connector 7 is configured (see FIG. 4B).

  More specifically, as described above, the battery module 1 according to the present embodiment includes one output terminal 21a of the unit cell 2 at the beginning of the alignment direction and the other unit cell 2 at the end of the alignment direction. The output terminal 21b constitutes the positive and negative output terminals A and B of the assembled battery, and the output terminals 21a and 21b of different polarities of the adjacent unit cells 2 are electrically connected via the connection means 3. Therefore, as the wiring means 6a and 6b, a pair of first wiring means 6a extending from a predetermined position of the connector socket 70 to the output terminals A and B of the assembled battery, and each connecting means 3 from the predetermined position of the connector socket 70 are connected. And a plurality of second wiring means 6b extending up to.

  The first wiring means 6a and the second wiring means 6b are formed in a shape corresponding to the form of the corresponding wiring path (first wiring path 412a, second wiring path 412b), and the wiring path (first wiring path 412a, The second wiring path 412b) is fitted in each groove (see FIG. 5).

  The first wiring means 6a and the second wiring means 6b are made of a highly conductive metal material such as aluminum or copper. In the present embodiment, the first wiring means 6a and the second wiring means 6b are formed by punching a metal plate in accordance with the planar shape of the corresponding wiring paths 412a and 412b, and as shown in FIG. One end (the end introduced into the connector socket 70) is bent. Thereby, the 1st wiring means 6a and the 2nd wiring means 6b are the state arrange | positioned in the corresponding 1st wiring path | route 412a and the 2nd wiring path | route 412b (groove | groove) (The state fitted in the groove | channel 412a, 412b from the upper direction) Thus, the connector socket 70 (pin arrangement area PA) and the external area are straddled, and the end of the connector socket 70 stands up from the top surface of the top plate 410, and the connector pin of the male connector 7 71 is configured.

  The first wiring means 6 a is arranged in the first wiring path 412 a and is connected to the output terminals A and B of the assembled battery whose other end is exposed from the terminal exposed portion 404. Along with this, a terminal (a round terminal in the figure) 60a that can be connected to (attached to) the output terminals A and B of the assembled battery is attached to the other end of the first wiring means 6a.

  On the other hand, the second wiring means 6b is arranged in the second wiring path 412b and is connected to the connecting means 3 whose other end is exposed from the connecting means exposed portion 403. Accordingly, a terminal (round terminal in the drawing) 60b that can be connected (screwed) to the object is attached to the other end of the second wiring means 6b. The second wiring means 6 b is configured such that the other end (terminal) 60 b is screwed to the connection means 3.

  The battery module 1 according to the present embodiment is as described above. Next, the assembly of the battery module 1 having the above-described configuration will be described. A plurality of unit cells 2 are accommodated in the case body 40, and the plurality of unit cells are accommodated. The two output terminals 21 a and 21 b are electrically connected by the connecting means 3. Then, as shown in FIG. 4A, the opening 402 of the case body 40 is closed with the lid body 41, and the lid body 41 is connected to the case body 40. In this state, the single battery 2 in the case body 40 is covered with the cover body 41, the connection means 3 is exposed from the connection means exposed portion 403, and the output terminals A and B of the assembled battery are exposed from the terminal exposed portion 404. It becomes a state.

  As shown in FIG. 4B, each first wiring means 6a is arranged in each first wiring path (groove) 412a, and each second wiring means 6b is placed in each second wiring path (groove) 412b. To place. Then, the first wiring means 6a is fixed in the first wiring path 412a, and the second wiring means 6b is fixed in the second wiring path 412b. In the present embodiment, as described above, since the first wiring path 412a and the second wiring path 412b are configured by grooves, the first wiring means 6a is disposed in the first wiring path 412a, and then the adhesive tape ( (Not shown), the open portion of the first wiring path 412a is partially closed, and the second wiring means 6b is disposed in the second wiring path 412b, and then the open portion of the second wiring path 412b is covered with an adhesive tape. By partially closing, the wiring means 6a and 6b are fixed in the wiring paths 412a and 412b.

  In this state, one end of each of the first wiring means 6a and the second wiring means 6b is erected at a predetermined position of the connector socket 70 to constitute the connector pin 71, and the lid 41 (top plate portion) 410) The male connector 7 is formed on the top. In this state, the other end portion (terminal) 60a of each first wiring means 6a is located in the terminal exposed portion 404, and the other end portion (terminal) 60b of each second wiring means 6b is connected to the connecting means exposed portion 403. Will be located within. That is, the other end portion (terminal) 60b of the second wiring means 6b overlaps the connecting means 3 exposed from the connecting means exposed portion 403, and the first wiring is connected to the output terminals A and B of the assembled battery exposed from the terminal exposed portion 404. The other end (terminal) 60a of the means 6a is fitted.

  And the other connection part (terminal) 60b of the 2nd wiring means 6b is screwed with respect to the connection means 3 which overlapped. For this screwing, for example, a screw hole may be drilled in the connecting means 3 in advance, and a small screw inserted into the terminal 60b of the second wiring means 6b may be screwed into the screw hole. A tapping screw may be inserted into the terminal 60b of the wiring means 6b, and the tapping screw may be directly screwed to the connecting means 3. In the present embodiment, a screw hole (not numbered) is drilled in the connection means 3 in advance, and the machine screw S inserted through the terminal 60b of the second wiring means 6b is screwed into the screw hole. . As described above, the terminal 60a of the first wiring means 6a is externally fitted to the output terminals A and B of the assembled battery. However, when the battery module 1 is used as a single power source, The terminal 60a of the one wiring means 6a is a nut member that is screwed to the output terminals A and B together with connecting a cable (not shown) connected to the load to the output terminals A and B of the assembled battery. When a plurality of battery modules 1 of the same type are connected and used as a power source, the terminal 60a of the first wiring means 6a is connected to the battery modules 1 connected to each other by the connection means 3. It is fastened and fixed by a nut member screwed into the output terminals A and B.

  Thereafter, as shown in FIG. 5, the female connector 8 attached to the battery monitoring device 5 is connected to the male connector 7 on the lid 41. Thereby, the battery monitoring device 5 and the output terminals 21a, 21b of the plurality of single cells 2 are connected directly or indirectly via a plurality of wiring means (first wiring means 6a, second wiring means 6b), The battery module 1 is completed.

  As described above, in the battery module 1 according to this embodiment, the female connector 8 of the pair of male and female connectors 7, 8 is electrically connected to the battery monitoring device 5, and the lid 41 is The connector socket 70 of the male connector 7 of the pair of male and female connectors 7 and 8 is attached, and a plurality of positions connecting the predetermined positions in the connector socket 70 and the connection positions of the single cells 2 to the output terminals 21a and 21b are connected. Wiring paths 412a and 412b are set and the wiring means 6a and 6b are arranged in the corresponding wiring paths 412a and 412b. Therefore, the output terminals 21a and 2a of the unit cell 2 to which the wiring means 412a and 412b are to be connected. 21b and a predetermined position in the connector socket 70 constituting the male connector 7 (the contact among the plurality of contacts provided on the female connector 8). They are arranged in a state of straddling the position) and corresponds to the arrangement of the should do contacts. Therefore, the battery module 1 having the above configuration is properly arranged without the wiring means 6a and 6b being miswired.

  Further, in the battery module 1 having the above-described configuration, since the end portions of the wiring means 6a and 6b introduced into the connector socket 70 constitute the connector pins 71 of the male connector 7, the wiring means 6a and 6b are connected to each other. The wiring means 6a and 6b can be electrically connected to the female connector 8 attached to the battery monitoring device 5 only by being arranged in the wiring paths 412a and 412b. Therefore, the battery module 1 having the above-described configuration can be in a state in which the plurality of wiring means 6a and 6b and the battery monitoring device 5 are electrically connected by connecting the pair of male and female connectors 7 and 8. Moreover, the battery monitoring device 5 can be replaced or repaired by releasing the connection between the pair of male and female connectors 7 and 8.

  As described above, the battery module 1 having the above configuration does not need to perform the work of individually connecting the wiring means 6a and 6b while confirming the arrangement of the plurality of pins or contacts provided in the connectors 7 and 8. The burden on the wiring work of the wiring means 6a and 6b can be reduced.

  Further, in the present embodiment, each of the wiring paths 412a and 412b is configured by a groove formed on the upper surface of the lid body 41, and each of the wiring means 6a and 6b has a shape corresponding to the form of the corresponding wiring paths 412a and 412b. Since the wiring means 6a and 6b are fitted in the grooves (wiring paths 412a and 412b), the wiring means 6a and 6b can be arranged only in the corresponding wiring paths 412a and 412b. Therefore, the wiring means 6a and 6b are connected to the output terminals 21a and 21b of the unit cell 2 to be connected to a predetermined position (position corresponding to the contact of the female connector 8 to be connected) to be disposed in the connector socket 70. It can arrange | position reliably in the state over the position. Therefore, each wiring means 6a, 6b is not arranged at a position that is not a target of connection, so that erroneous connection can be reliably prevented.

  Thereby, according to the battery module 1 which concerns on this embodiment, the outstanding effect that the burden concerning the wiring operation | work of the wiring means 6a, 6b for connecting the battery monitoring apparatus 5 and the cell 2 can be reduced. Can be played.

  Next, the battery module which concerns on 2nd embodiment of this invention is demonstrated, referring an accompanying drawing. In addition, since the basic configuration of the battery module according to this embodiment is the same as that of the battery module of the first embodiment, in the following description, the configuration common to or equivalent to the battery module of the first embodiment is described. The same name and the same reference sign shall be attached.

  As shown in FIG. 6, the battery module 1 according to the present embodiment includes a plurality of unit cells 2, connection means 3 that electrically connects output terminals 21 a and 21 b of the plurality of unit cells 2, and the plurality of unit cells. A module case 4 that houses the battery 2, a battery monitoring device 5 that electrically monitors the plurality of unit cells 2, and a plurality of electrical terminals that are electrically connected to the output terminals 21 a and 21 b of the plurality of unit cells 2. Wiring means 6a and 6b are provided.

  Each unit cell 2 includes a battery case 20 containing a power generation element (not shown), and a pair of output terminals (a positive output terminal and a negative output terminal) 21a and 21b arranged outside the battery case 20. It has. In the cell 2 according to this embodiment, the battery case 20 is formed in a hexahedron shape (square box shape), and one of the six surfaces constituting the outer surface of the battery case 20 is the upper surface, and the module case 4 Housed inside.

  Accordingly, the pair of output terminals 21a and 21b are arranged on the upper surface of the battery case 20 with a predetermined interval. Each output terminal 21a, 21b is formed in a rod shape, and is extended on the upper surface so as to form a right angle or a substantially right angle with respect to the planar upper surface of the battery case 20. Each output terminal 21a, 21b is formed with a male screw on the outer periphery so that a nut N can be screwed together. And each output terminal 21a, 21b is electrically connected with respect to the electric power generation element accommodated in the battery case 20, and can output the electric power supplied from an electric power generation element.

  In the battery module 1 according to this embodiment, the plurality of single cells 2 are arranged in a line. More specifically, in the plurality of unit cells 2, the output terminals 21a and 21b are aligned in two rows, and the positive output terminal 21a and the negative output terminal 21b are alternately arranged in each row. Are arranged as follows. The battery module 1 according to the present embodiment includes adjacent unit cells except for one output terminal 21a of the unit cell 2 at the top in the alignment direction and the other output terminal 21b of the unit cell 2 at the end in the alignment direction. The two output terminals 21 a and 21 b having different polarities are electrically connected to each other through the connection means 3. As a result, the battery module 1 includes a plurality of single cells 2 connected in series to form an assembled battery, and one single output terminal 21a of the single cell 2 at the top of the alignment direction and the single cell 2 at the end of the alignment direction. The other output terminal 21b constitutes an output terminal of the battery pack (positive output terminal A, negative output terminal B).

  The connection means 3 electrically connects the output terminals 21a and 21b (output terminals 21a and 21b having different polarities) of adjacent unit cells 2 and is made of a conductive material. The connection means 3 according to the present embodiment is constituted by a metal plate. The connecting means 3 according to the present embodiment is provided with a pair of through holes (not numbered) set to a hole diameter through which the output terminals 21a and 21b can be inserted. The pair of through holes are arranged at intervals corresponding to the arrangement of the output terminals 21a and 21b (the output terminals 21a and 21b having different polarities in the same row) of the adjacent unit cells 2.

  The module case 4 includes a case main body 40 that supports the plurality of unit cells 2, and a lid body 41 that covers the plurality of unit cells 2 supported by the case body 40.

  The case body 40 is formed in a box shape with one surface (for example, the upper surface) opened. That is, the case body 40 includes a bottom plate 400 and a peripheral wall 401 that stands up from the outer periphery of the bottom plate 400. As for case body 40 concerning this embodiment, bottom board 400 is formed in the shape of a quadrangle in plane view. Accordingly, the peripheral wall 401 includes flat wall portions 401 a, 401 b, 401 c, 401 d extending upward from each of the four sides constituting the outer periphery of the bottom plate 400, and the adjacent wall portions 401 a, 401 a, It is formed by connecting 401b, 401c, and 401d. As a result, the case body 40 has an opening 402 formed at the upper end, and is configured to be able to accommodate the plurality of single cells 2 from the opening 402. The case body 40 has an opening on the peripheral wall 401 (wall portions 401a, 401b, 401c, 401d) that communicates the inside and the outside in order to discharge the heat generated with the charging / discharging of the accommodated unit cell 2 to the outside. It may be formed.

  The lid body 41 can be connected to the case body 40 in a state in which the plurality of single cells 2 housed in the case body 40 are covered (a state in which the opening 402 of the case body 40 is closed). That is, the module case 4 is formed by connecting the lid body 41 and the case main body 40. Note that the case body 40 and the lid body 41 are connected to, for example, one of a claw and a recess for locking at the upper end portion (at least one of the inner peripheral surface and the outer peripheral surface) of the peripheral wall 401 of the case main body 40. A lock that can be engaged with either the locking claw or the recess of the case main body 40 with respect to the lower end portion (for example, the lower end portion of an upright wall portion 411 described later) of the lid 41 that is the counterpart It is only necessary to provide a recess or a claw for engagement, and to engage one of the other locking claws with one of the locking recesses.

  As shown in FIG. 7, the lid body 41 according to the present embodiment includes a top plate portion 410 formed in a square shape corresponding to the opening 402 of the case body 40, and an upward direction from the outer periphery of the top plate portion 410. And a standing wall portion 411 extending. The top plate portion 410 is formed with openings 403 and 404 that expose the output terminals 21a and 21b of the plurality of single cells 2 housed in the case body 40.

  More specifically, the battery module 1 according to the present embodiment includes an uppermost output terminal 21a (output terminal A for the positive electrode of the assembled battery) in the current flow direction of the plurality of unit cells 2 arranged in alignment. The connecting terminals 3 connect the output terminals 21a and 21b of the adjacent unit cells 2 except for the most downstream output terminal 21b (the output terminal B for the negative electrode of the assembled battery) in the current flow direction of the plurality of unit cells 2. Since the lid body 41 according to the present embodiment is electrically connected, the opening portions 403 and 404 are in alignment with a plurality of connection means exposed portions (openings) 403 corresponding to the connection means 3. A pair of terminal exposed portions (openings) 404 corresponding to the most upstream and the most downstream output terminals 21a and 21b (output terminals A and B of the assembled battery) in the current flow direction of the plurality of unit cells 2 are formed. Yes.

  As a result, the battery module 1 according to the present embodiment is configured so that each of the connecting means is in a state where the plurality of single cells 2 accommodated in the case body 40 are covered with the lid body 41 (the lid body 41 is coupled to the case body 40). The connecting means 3 and the output terminals 21a and 21b electrically connected by the connecting means 3 are exposed from the exposed portion 403, and the output terminals A and B of the assembled battery are exposed from each terminal exposed portion 404. Yes.

  The battery module 1 according to the present embodiment electrically connects the plurality of wiring means 6a and 6b connected to the plurality of single cells 2 and the battery monitoring device 5 through a pair of male and female connectors 7 and 8. (See FIGS. 6 and 11).

  Accordingly, in the battery module 1 according to the present embodiment, the connector socket 70 of the male connector 7 of the pair of male and female connectors 7 and 8 is attached to the lid body 41. In the present embodiment, the connector socket 70 is provided on the top surface of the top plate 410 of the lid 41. The connector socket 70 is formed on the top plate portion 410 so as to surround a predetermined region (region where the connector pin 71 of the male connector 7 is disposed).

  More specifically, in the connector socket 70, the wiring means 6a and 6b can be arranged on the top plate 410 in a state straddling the pin arrangement area PA where the connector pins of the male connector 7 are arranged and the outer area. Therefore, it is formed in a state where a part is opened. That is, the connector socket 70 is erected on the top plate portion 410 so as to surround the pin arrangement area PA, and an open portion 72 that connects the pin arrangement area PA and the outer area is formed between both ends in the circumferential direction. is doing.

  The lid body 41 is provided with a plurality of wiring paths 412a and 412b that connect predetermined positions in the connector socket 70 and connection positions of the single cells 2 with respect to the output terminals 21a and 21b. That is, the lid 41 is a position corresponding to a hole (not shown) provided in the female connector 8 into which the connector pin of the male connector 7 is inserted, and the wiring means 6 a and 6 b are connected to the contacts of the female connector 8. A plurality of independent wiring paths 412a and 412b are set by connecting a position to be connected and a position where the output terminals 21a and 21b can be connected directly or indirectly.

  More specifically, the lid 41 according to this embodiment is inserted into a predetermined position (connector pin 71 of the male connector 7) in the connector socket 70 from a terminal exposed portion 404 formed on the top plate portion 410. Two first wiring paths (wiring paths) corresponding to holes (not shown) provided in the female connector 8 and extending to the contacts of the female connector 8 where the wiring means 6a and 6b are to be connected) 412a and a predetermined position in the connector socket 70 from the connecting means exposed portion 403 formed on the top plate 410 (corresponding to a hole (not shown) provided in the female connector 8 into which the connector pin 71 of the male connector 7 is inserted) A plurality of second wiring paths (wiring paths) 412b extending to the contact points of the female connector 8 and extending to the wiring means 6a, 6b are set.

  In the battery module 1 according to the present embodiment, each of the wiring paths 412a and 412b is configured by a groove formed on the top surface of the top plate portion 410 of the lid body 41. Further, as shown in FIGS. 7 and 9A, the lid body 41 according to the present embodiment has wiring means 6a, 6b (first wiring path 412a and second wiring path 412b) connected to wiring means 412a, 412b (first wiring path 412b). Locking claws 413a and 413b are provided for preventing the one wiring means 6a and the second wiring means 6b) from falling off. As shown in FIG. 9A, the locking claws 413a and 413b are projected inward on both upper sides of the grooves 412a and 412b (first wiring path 412a and second wiring path 412b) as wiring paths. By pushing the wiring means 6a, 6b between the pair of locking claws 413a, 413b, the wiring means 6a, 6b enter the wiring paths (grooves) 412a, 412b, and the wiring means 6a, 6b (Grooves) 412a and 412b are locked by the locking claws 413a and 413b, and are prevented from moving upward.

  Returning to FIG. 7, the upright wall portion 411 is erected on the outer periphery of the top plate portion 410. And the standing wall part 411 which concerns on this embodiment is cut off the part adjacent to each terminal exposure part 404. FIG. Thereby, when the same kind of battery modules 1 are arranged side by side, the output terminals 21a and 21b of the adjacent battery modules 1 (assembled batteries) can be connected by the connecting means 3. That is, the standing wall portion 411 is formed in a partially cut state so as to prevent the connecting means 3 that connects the output terminals 21a and 21b of the adjacent battery modules 1 (assembled batteries) from interfering with each other. Yes.

  Returning to FIG. 6, the battery monitoring device 5 is a control circuit board configured to be able to monitor the state of charge based on the voltage between the output terminals 21 a and 21 b of the unit cell 2, and in this embodiment, the female connector 8 Is attached. The battery monitoring device 5 according to the present embodiment is set to a size that can be arranged between the output terminals 21 a and 21 b of the single cell 2.

  Each of the plurality of wiring means 6a, 6b is electrically connected to the output terminals 21a, 21b of the plurality of single cells 2 (see FIG. 11). In the present embodiment, the wiring means 6a and 6b are arranged along the wiring paths 412a and 412b set on the top plate 410 of the lid 41, and the end portions introduced into the connector socket 70 are male. A connector pin 71 of the side connector 7 is configured (see FIG. 10B).

  More specifically, as described above, the battery module 1 according to the present embodiment includes one output terminal 21a of the unit cell 2 at the beginning of the alignment direction and the other unit cell 2 at the end of the alignment direction. The output terminal 21b constitutes the positive and negative output terminals A and B of the assembled battery, and the output terminals 21a and 21b of different polarities of the adjacent unit cells 2 are electrically connected via the connection means 3. Therefore, as the wiring means 6a and 6b, a pair of first wiring means 6a extending from a predetermined position of the connector socket 70 to the output terminals A and B of the assembled battery, and each connecting means 3 from the predetermined position of the connector socket 70 are connected. And a plurality of second wiring means 6b extending up to.

  The first wiring means 6a and the second wiring means 6b are formed in a shape corresponding to the form of the corresponding wiring path (first wiring path 412a, second wiring path 412b), and the wiring path (first wiring path 412a, The second wiring path 412b) is fitted in each groove (see FIG. 11).

  The first wiring means 6a and the second wiring means 6b are made of a highly conductive metal material such as aluminum or copper. In the present embodiment, the first wiring means 6a and the second wiring means 6b are formed by punching a metal plate in accordance with the planar shape of the corresponding wiring paths 412a and 412b, and as shown in FIG. One end (the end introduced into the connector socket 70) is bent. Thereby, the 1st wiring means 6a and the 2nd wiring means 6b are the state arrange | positioned in the corresponding 1st wiring path | route 412a and the 2nd wiring path | route 412b (groove | groove) (The state fitted in the groove | channel 412a, 412b from the upper direction). Thus, the connector socket 70 (pin arrangement area PA) and the external area are straddled, and the end of the connector socket 70 stands up from the top surface of the top plate 410, and the connector pin of the male connector 7 71 is configured.

  The first wiring means 6 a is arranged in the first wiring path 412 a and is connected to the output terminals A and B of the assembled battery whose other end is exposed from the terminal exposed portion 404. Along with this, a terminal (a round terminal in the figure) 60a that can be connected to (attached to) the output terminals A and B of the assembled battery is attached to the other end of the first wiring means 6a.

  On the other hand, the second wiring means 6b is arranged in the second wiring path 412b and is connected to the connecting means 3 whose other end is exposed from the connecting means exposed portion 403. The second wiring means 6b according to this embodiment has an elastic structure 60b 'at the other end, and the elastic structure 60b' is pressed against and electrically connected to the connection means 3. Specifically, a coil spring 60b 'as an elastic structure is provided at the other end of each second wiring means 6b. The coil spring 60b 'is configured to be elastically deformable in the same direction as the connecting direction of the lid body 41 with respect to the case body 40 (the fitting direction with respect to the second wiring path 412b).

  The battery module 1 according to the present embodiment is as described above. Next, the assembly of the battery module 1 having the above-described configuration will be described. A plurality of unit cells 2 are accommodated in the case body 40, and the plurality of unit cells are accommodated. The two output terminals 21 a and 21 b are electrically connected by the connecting means 3. Then, as shown in FIG. 10A, the opening 402 of the case body 40 is closed with the lid body 41, and the lid body 41 is connected to the case body 40. In this state, the single battery 2 in the case body 40 is covered with the cover body 41, the connection means 3 is exposed from the connection means exposed portion 403, and the output terminals A and B of the assembled battery are exposed from the terminal exposed portion 404. It becomes a state.

  As shown in FIG. 10B, each first wiring means 6a is arranged in each first wiring path (groove) 412a, and each second wiring means 6b is placed in each second wiring path (groove) 412b. To place. In the battery module 1 according to the present embodiment, since the locking claws 413a and 413b are provided on the upper portions of the first wiring path 412a and the second wiring path 412b, the first wiring means 6a is provided in the first wiring path 412a. By being pushed in, it is locked by the locking claws 413a and 413b and fixed in the first wiring path 412a, and the second wiring means 6b is engaged in the locking claws 413a and 413b by being pushed into the second wiring path 412b. It is stopped and fixed in the second wiring path 412b (see FIG. 9A).

  In this state, one end of each of the first wiring means 6a and the second wiring means 6b is erected at a predetermined position of the connector socket 70 to constitute the connector pin 71, and the lid 41 (top plate portion) 410) The male connector 7 is formed on the top. In this state, the other end portion (terminal) 60a of each first wiring means 6a is located in the terminal exposed portion 404, and the other end portion (elastic structure) 60b ′ of each second wiring means 6b is exposed to the connecting means. It is located in the part 403. That is, the other end portion (elastic structure) 60b ′ of the second wiring means 6b is in pressure contact with the connecting means 3 exposed from the connecting means exposed portion 403 by its own elastic force, as shown in FIG. 9B. While being electrically connected, the other end portion (terminal) 60a of the first wiring means 6a is externally fitted to the output terminals A and B of the assembled battery exposed from the terminal exposed portion 404, as shown in FIG. become.

  As described above, the terminal 60a of the first wiring means 6a is externally fitted to the output terminals A and B of the assembled battery. However, when the battery module 1 is used as a single power source, The terminal 60a of the one wiring means 6a is a nut member that is screwed to the output terminals A and B together with connecting a cable (not shown) connected to the load to the output terminals A and B of the assembled battery. When a plurality of battery modules 1 of the same type are connected and used as a power source, the terminal 60a of the first wiring means 6a is connected to the battery modules 1 connected to each other by the connection means 3. It is fastened and fixed by a nut member screwed into the output terminals A and B.

  Thereafter, as shown in FIG. 11, the female connector 8 attached to the battery monitoring device 5 is connected to the male connector 7 on the lid 41. Thereby, the battery monitoring device 5 and the output terminals 21a, 21b of the plurality of single cells 2 are connected directly or indirectly via a plurality of wiring means (first wiring means 6a, second wiring means 6b), The battery module 1 is completed.

  As described above, in the battery module 1 according to this embodiment, the female connector 8 of the pair of male and female connectors 7, 8 is electrically connected to the battery monitoring device 5, and the lid 41 is The connector socket 70 of the male connector 7 of the pair of male and female connectors 7 and 8 is attached, and a plurality of positions connecting the predetermined positions in the connector socket 70 and the connection positions of the single cells 2 to the output terminals 21a and 21b are connected. Wiring paths 412a and 412b are set and the wiring means 6a and 6b are arranged in the corresponding wiring paths 412a and 412b. Therefore, the output terminals 21a and 2a of the unit cell 2 to which the wiring means 412a and 412b are to be connected. 21b and a predetermined position in the connector socket 70 constituting the male connector 7 (the contact among the plurality of contacts provided on the female connector 8). They are arranged in a state of straddling the position) and corresponds to the arrangement of the should do contacts. Therefore, the battery module 1 having the above configuration is properly arranged without the wiring means 6a and 6b being miswired.

  Further, in the battery module 1 having the above-described configuration, since the end portions of the wiring means 6a and 6b introduced into the connector socket 70 constitute the connector pins 71 of the male connector 7, the wiring means 6a and 6b are connected to each other. The wiring means 6a and 6b can be electrically connected to the female connector 8 attached to the battery monitoring device 5 only by being arranged in the wiring paths 412a and 412b. Therefore, the battery module 1 having the above-described configuration can be in a state in which the plurality of wiring means 6a and 6b and the battery monitoring device 5 are electrically connected by connecting the pair of male and female connectors 7 and 8. Moreover, the battery monitoring device 5 can be replaced or repaired by releasing the connection between the pair of male and female connectors 7 and 8.

  As described above, the battery module 1 having the above configuration does not need to perform the work of individually connecting the wiring means 6a and 6b while confirming the arrangement of the plurality of pins or contacts provided in the connectors 7 and 8. The burden on the wiring work of the wiring means 6a and 6b can be reduced.

  Further, in the present embodiment, each of the wiring paths 412a and 412b is configured by a groove formed on the upper surface of the lid body 41, and each of the wiring means 6a and 6b has a shape corresponding to the form of the corresponding wiring paths 412a and 412b. Since the wiring means 6a and 6b are fitted in the grooves (wiring paths 412a and 412b), the wiring means 6a and 6b can be arranged only in the corresponding wiring paths 412a and 412b. Therefore, the wiring means 6a and 6b are connected to the output terminals 21a and 21b of the unit cell 2 to be connected to a predetermined position (position corresponding to the contact of the female connector 8 to be connected) to be disposed in the connector socket 70. It can arrange | position reliably in the state over the position. Therefore, each wiring means 6a, 6b is not arranged at a position that is not a target of connection, so that erroneous connection can be reliably prevented.

  Furthermore, in the battery module 1 according to the present embodiment, the end of the wiring means 6b has an elastic structure 60b ′, and the elastic structure 60b ′ is in pressure contact with and electrically connected to the connection means 3. Therefore, each wiring means 6b can be electrically connected to the connecting means 3 without attaching a connection terminal such as a round terminal to the wiring means 6b and screwing or the like. The burden on the work can be reduced.

  Thereby, according to the battery module 1 which concerns on this embodiment, the outstanding effect that the burden concerning the wiring operation | work of the wiring means 6a, 6b for connecting the battery monitoring apparatus 5 and the cell 2 can be reduced. Can be played.

  The battery module according to the present invention is not limited to any of the above embodiments, and can be appropriately changed without departing from the gist of the present invention.

  In the first and second embodiments, after the opening 402 of the case body 40 containing the plurality of single cells 2 is closed by the lid 41, the plurality of wiring means 6a and 6b are respectively connected to the wiring paths 412a and 412b. However, the present invention is not limited to this. For example, after arranging the wiring means 6a, 6b along the plurality of wiring systems set on the lid body 41 and 412a, 412b, the lid You may make it close the opening part 402 of the case main body 40 with the body 41 (cover the cell 2). In the first and second embodiments, the single cells 2 are accommodated in the case main body 40, the single cells 2 are connected by the connection means 3, and then the single cells 2 are covered with the lid 41. However, the present invention is not limited to this. For example, the plurality of single cells 2 are accommodated in the case body 40 in an independent state, and the single cells 2 are covered with the lid 41, and thereafter, the connecting means exposing portion 403. The output terminals 21 a and 21 b exposed from each other may be connected by the connecting means 3.

  In the first and second embodiments, a plurality of grooves are provided on the top surface of the top plate portion 410 of the lid 41, and the wiring paths 412a and 412b in which the wiring means 6a and 6b are arranged are configured by the grooves. For example, a plurality of communication holes along the surface of the top plate portion 410 of the lid body 41 are formed as a plurality of wiring paths 412a and 412b, and the communication holes (wiring paths 412a and 412b are formed). ) And wiring means (for example, lead wires) 6a and 6b may be inserted and wired. In addition, wiring routes 412a and 412b for arranging the wiring means 6a and 6b are printed on the top plate 410, and the wiring means 6a and 6b are arranged along the printed (wiring routes) 412a and 412b. May be. Even in this case, since the arrangement of the plurality of wiring means 6a and 6b becomes clear, erroneous connection can be prevented.

  In the first and second embodiments, the wiring means 6a and 6b are formed by punching the metal plate according to the planar shape of the corresponding wiring paths 412a and 412b (the wiring means 6a and 6b are manufactured by punching). However, the present invention is not limited to this. For example, the wiring means 6a and 6b conforming to the planar shape of the corresponding wiring paths 412a and 412b are produced by bending a strong metal bar. You may do it. That is, the wiring means 6a and 6b are made of a metal which is bent at portions other than the end portions introduced into the connector socket 70 so as to conform to the planar shape of the corresponding wiring paths 412a and 412b. You may comprise with a bar.

  In the first embodiment, the wiring paths 412a and 412b are constituted by grooves, and the wiring means 6a and 6b are arranged in the wiring paths 412a and 412b, and the opened portions of the grooves are partially covered with an adhesive tape. Although the wiring means 6a and 6b are prevented from falling off by closing, the present invention is not limited to this. For example, as in the second embodiment, the locking claws 413a and 413a are formed on both sides of the upper portions of the grooves 412a and 412b. 413b may be provided.

  In the first embodiment, the wiring means 6a and 6b in the wiring paths 412a and 412b are fixed with an adhesive tape. In the second embodiment, the locking claws 413a and 413b provided on the upper part of the wiring path 412 are used. Although the wiring means 6a and 6b are fixed, the fixing of the wiring means 6a and 6b is not limited to that using the locking claws 413a and 413b or an adhesive tape. For example, the wiring means 6a and 6b are connected to the lid 41 (the top plate portion 410) and a pressing member (for example, a plate-like pressing plate) may be arranged on the wiring means 6a and 6b and fixed to the lid body 41. The wiring means 6a and 6b need not be fixed to the entire length, and may be fixed partially.

  In the second embodiment, the connector pin 71 of the male connector 7 is configured at one end of the wiring means 6a, 6b. For example, when the elastic structure 60b ′ is provided at the other end of the wiring means 6a, 6b. May be provided with a male connector 7 independent of the other ends of the wiring means 6a, 6b. That is, if the elastic structure 60b 'is provided at the other end of the wiring means 6a, 6b, the wiring work for the connecting means 3 can be simplified, and this alone improves the working efficiency. However, it goes without saying that it is preferable to use the same method as in the second embodiment in order to further increase the working efficiency. Also in the first embodiment, if the elastic structure (coil spring) 60b ′ is provided at the other end of the second wiring means 6b as in the second embodiment, the work efficiency of the wiring work at the time of assembly is further improved. It goes without saying that it can be done.

  In the second embodiment, the elastic structure 60b ′ made of a coil spring is provided at the other end portion of the second wiring means 6b. However, the elastic structure 60b ′ is not limited to the coil spring, and is constituted by a leaf spring, for example. May be. Further, the elastic structure 60b 'is not limited to a spring, and may be a rubber material containing a conductive filler, for example. That is, the elastic structure 60 b ′ has electrical conductivity, and the second wiring means 6 b is fixed to the lid body 41 covering the unit cell 2, so that the elastic structure 60 b ′ is pressed against the connection means 3 exposed from the connection means exposed portion 403. Any configuration is possible.

  DESCRIPTION OF SYMBOLS 1 ... Battery module, 2 ... Single cell, 3 ... Connection means, 4 ... Module case, 5 ... Battery monitoring apparatus, 6a ... First wiring means (wiring means), 6b ... Second wiring means (wiring means), 7 ... Male connector (connector), 8 ... Female connector (connector), 20 ... Battery case, 21a, 21b ... Output terminal, 40 ... Case body, 41 ... Lid, 60a ... End (terminal), 60b ... End (Terminal), 60b '... end (elastic structure (coil spring)), 70 ... connector socket, 400 ... bottom plate, 401 ... peripheral wall, 401a, 401b, 401c, 401d ... wall, 402 ... opening, 403 ... connection means Exposed part (opening part), 404 ... Terminal exposed part (opening part), 410 ... Top plate part, 411 ... Standing wall part, 412a ... First wiring path (wiring path: groove), 412b ... Second wiring path (wiring) Route: groove), 41 a, 413b ... locking claw 72 ... opening, A, B ... output terminal, N ... nut, PA ... pinout region

Claims (3)

  A plurality of unit cells, a module case that accommodates the plurality of unit cells, a battery monitoring device that electrically monitors the plurality of unit cells, and an output terminal of the plurality of unit cells are electrically connected A plurality of wiring means, and the module case includes a case main body that supports the plurality of unit cells and a lid that covers the plurality of unit cells, and the battery monitoring device is connected via a pair of male and female connectors. In the battery module electrically connected to the plurality of wiring means, a female connector of the male and female connectors is electrically connected to the battery monitoring device, and the male and female pairs are connected to the lid. A connector socket of a male connector of the connectors is attached, and a plurality of wiring paths connecting a predetermined position in the connector socket and a connection position with respect to the output terminal of each unit cell are set, Cell module wiring means are arranged along a corresponding wiring path, the ends of each wiring means which is introduced into the connector socket, characterized in that it constitutes a connector pin of the male connector. A plurality of unit cells, a module case that accommodates the plurality of unit cells, a connection unit that connects output terminals of the unit cells, a battery monitoring device that performs electrical monitoring of the unit cells, the connection unit, and the In a battery module comprising wiring means for electrically connecting the battery monitoring device,
An end portion of the wiring means has an elastic structure, and the elastic structure is pressed and electrically connected to the connection means.   Each wiring path is constituted by a groove formed on the upper surface of the lid, each wiring means is formed in a shape conforming to the form of the corresponding wiring path, and each wiring means is fitted in each groove. The battery module according to 1.

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