JP2012226969A - Battery module harness and battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: a harness that can reduce manufacturing costs even when a plurality of battery modules are set by applying a simple processing to an FFC, and by arranging the periphery of the harness in a compact fashion; and a battery module using the harness.SOLUTION: A harness 100 includes: a harness body 110; a first connection section 120; and a second connection section 130. The harness body 110 is formed with a middle part of an FFC 100' after being processed which is located in a direction in which an insulating coating 100a extends. The first connection section 120 extends from one end of the harness body in the direction in which the insulating coating extends, and includes a plurality of conductors 100b having exposed parts 121 exposed from the insulating coating to the outside which are disposed one by one for each of a plurality of electrical signal detection sections 222. The second connection section 130 extends from the other end of the harness body in the direction in which the insulating coating extends, and is connected to an electric processing device 400. A battery module M includes: the harness; a battery cell group 200; and the electric processing device.

Description

  The present invention belongs to the technical field of a harness that constitutes a battery module together with a battery cell group.

  The battery module disclosed in Patent Document 1 includes a plurality of battery cells, a battery ECU that controls each of the battery cells, and a flexible printed circuit board (hereinafter abbreviated as FPC) that connects the battery cells and the battery ECU. And). The FPC has a configuration in which a circuit is formed by a copper conductive foil on an insulating base film, and the upper surface of the conductive foil is covered with a protective film. The FPC includes a band-shaped base portion, and is fixed by a circular connection piece connected to the electrode terminal, which protrudes from the side edge on the long side of the base portion along the width direction of the base portion, and a positioning pin. And a semicircular positioning piece. And the said electrode terminal is inserted in the electrode insertion hole of the said connection piece, a clamp is attached to the outer side of the connection piece distribute | arranged along the side wall surface of the said electrode terminal, and the connection part of a connection piece and an electrode terminal is fixed. To do.

  The battery module disclosed in Patent Document 2 includes a plurality of battery cells, a bus bar for connecting the battery cells, a battery ECU (abbreviation for electronic control unit) for controlling the battery cells, and the battery cells. And an FPC connecting the battery ECU. The FPC includes a strip-shaped base portion and a connection piece that protrudes from the long side edge of the base portion along the width direction of the base portion. The connecting piece of the FPC is sandwiched between the electrode part and the bus bar so that the surface on which the board-side terminal is provided faces the bus bar side.

JP 2010-157399 A Japanese Patent No. 2010-3466

  Thus, the conventional battery module uses an FPC as a harness for connecting the battery cells to the battery ECU. In this way, since the harness is not bulky as compared with a case where a normal electric wire having a core wire covered with an insulating coating is used as the harness, the harness around the battery module can be compactly gathered. However, when setting the plurality of battery modules in which the arrangement of the battery cells in the battery cell group or the relative positions of the battery cell group and the battery ECU are different, the FPC is set for each battery module. It is necessary to design, create a mold for each FPC and manufacture it. This requires a dedicated FPC for each battery module, which increases the manufacturing cost of each battery module.

  The present invention has been made by paying attention to such points, and the object of the present invention is to perform a simple process on a general-purpose flexible flat cable (hereinafter abbreviated as FFC), thereby to The battery modules are set in a compact manner, for example, the battery cells in the battery cell group, or a plurality of battery modules having different relative positions between the battery cell group and an electrical processing device such as the battery ECU are set. The object is to provide a harness of a battery module that can reduce the manufacturing cost of each of the battery modules, and a battery module using the same.

In order to achieve the above object, the harness of the first battery module of the present invention comprises:
A flexible insulating coating extending in a belt shape, and a plurality of lines extending along the long side of the insulating coating in the direction of the extending direction and extending in the extending direction of the insulating coating. FFC with flexible conductor is processed,
A harness body constituted by a midway portion of the FFC in the extending direction of the insulating coating;
The battery in the battery cell group, which extends from one end of the harness body in the extending direction of the insulation coating and includes a plurality of battery cells arranged in a row, each having a pair of electrode terminals. An exposed portion exposed to the outside from the insulating coating corresponding to a plurality of electrical signal detectors provided at a plurality of locations along the row of cells and capable of detecting electrical signals according to the state of the surrounding battery cells. A first connection provided one by one;
A second connection portion that extends from the other end of the harness body in the extending direction of the insulating coating and is connected to an electrical processing device that receives an electrical signal from the electrical signal detection portion.

  A battery module can be obtained by connecting each exposed portion of the first connection portion to each of the electrical signal detection portions and connecting the second connection portion to the electrical processing device.

  In that case, since the harness is not bulky as compared with the case of using a normal electric wire in which the core wire is covered with an insulation coating as the harness, the area around the harness of the battery module is compactly gathered. In addition, on one end side of the general-purpose FFC having a length corresponding to the length from the battery cell group to the electrical processing device, the exposed portion exposed to the outside from the insulating coating is provided on the plurality of conductors. The first connection portion is provided by performing simple processing, and further, for example, an electrical connector is connected to the other end of the FFC, or an exposed portion exposed to the outside from the insulating coating is provided on the plurality of conductors. If a connection part is provided, the harness of the said battery module is made. Therefore, for example, even when a plurality of battery modules having different arrangements of the battery cells in the battery cell group or relative positions of the battery cell group and the electrical processing device are set, The manufacturing cost of the battery module can be reduced.

The harness of the second battery module of the present invention is the harness of the first battery module,
The electrical signal detector is provided on an electrode terminal connecting member connected to one or two of the electrode terminals in the battery cell group.

  If it does in this way, if the said electrode terminal connection member is formed, for example in flat form, or larger than the said electrode terminal, the said 1st connection part will be connected to the electric signal detection part provided in the said electrode terminal. The workability of the connection work is improved as compared with the case of doing so.

The harness of the third battery module of the present invention is the harness of the first or second battery module,
Each exposed portion of the first connection portion is formed by providing an opening in the insulating coating.

  If it does in this way, an exposed part will be provided if an opening is formed, for example by punching.

The harness of the fourth battery module of the present invention is the harness of the first or second battery module,
Each of the exposed portions of the first connection portion is formed by dividing the insulating coating between the conductors and stripping the end of the conductor from the end of the insulating coating.

  If it does in this way, an exposure part will be provided by the general process with respect to general purpose FFC.

The first battery module of the present invention comprises:
A harness of any one of the first to fourth battery modules; and
The battery cell group comprising a plurality of the battery cells, each having a pair of the electrode terminals and arranged in a row,
Comprising the electrical processing device,
The exposed portions of the first connecting portions are respectively connected to the corresponding electrical signal detecting portions;
The conductors of the second connection portions are respectively connected to the corresponding input portions of the electrical processing device.

The second battery module of the present invention is
In the first battery module,
The battery cell is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals protrudes from one end surface thereof,
The support member further includes a support member main body having a wall provided in the periphery so that a housing chamber that is opened in the bottom surface and receives one or two of the electrode terminals is formed inside. A support portion connected to the outside of the wall of the support member main body and extending with a width corresponding to the first connection portion of the harness,
A member provided with the electric signal detector is provided on the support member.

  In this case, one or two or more of the support members are applied to the end faces of the battery cells so as to receive the one or two electrode terminals of the battery cells in the respective storage chambers, and the harness If the first connection part is arranged on the support part and the exposed parts are connected to the electric signal detection parts, the harness is connected to the battery cell group.

The third battery module of the present invention is
In the second battery module,
The electric signal detector is provided so as to cross the support in the width direction.

  If it does in this way, since the connection operation | work to the said electric signal detection part of the said exposed part of the said 1st connection part of the said harness can be performed on the outer side of the said supporting member main body, workability | operativity improves depending on the connection method.

The fourth battery module of the present invention is
In one of the first to third battery modules,
The exposed portion is connected to the electrical signal detecting portion by welding.

  In this way, the connection strength is increased as compared with, for example, soldering.

  The harness of the battery module and the battery module using the same according to the present invention are obtained by performing a simple process on a general-purpose FFC, so that the harness is compactly arranged, and, for example, the arrangement of the battery cells in the battery cell group, or Even when a plurality of battery modules having different relative positions between the battery cell group and the electrical processing device are set, the manufacturing cost of each battery module can be reduced.

  When the electrical signal detection unit is provided on the electrode terminal connection member, in addition to obtaining the above-described effect, the electrical signal detection in which the first connection unit is provided on the electrode terminal depending on the configuration of the electrode terminal connection member. The workability of the connection work can be improved as compared with the connection to the part.

  When each of the exposed portions of the first connecting portion is formed by providing an opening in the insulating coating, in addition to obtaining the above effects, for example, it is compared with an operation of stripping the conductor from the insulating coating. And the setup of the operation | work which provides the said 1st connection part in general purpose said FFC becomes easy.

  When the respective exposed portions of the first connecting portion are formed by dividing the insulating coating between the conductors and stripping the end of the conductor from the end of the insulating coating, the above effects can be obtained. In addition, since general processing for a general-purpose FFC is sufficient, the general-purpose FFC processing apparatus can be used.

  When the battery module is provided with a support member, in addition to obtaining the above effects, the workability of connecting the harness to the battery cell group can be improved.

  When the electrical signal detection unit is provided so as to cross the support unit in the width direction, in addition to obtaining the above effects, workability may be increased depending on the method of connecting the harness to the first connection unit. Can be improved.

  When the exposed portion is connected to the electrical signal detecting portion by welding, in addition to the above effects, the connection strength can be increased as compared with, for example, soldering.

FIG. 1 is a perspective view showing a battery module according to a first embodiment of the present invention. FIG. 2 is a plan view of the battery module as viewed from the thickness direction. FIG. 3 is an enlarged plan view showing the main part of FIG. 2 as viewed from the thickness direction. A part of the first connection part is cut off to show the support part. This figure also shows the main part of the battery module of the second embodiment of the present invention. FIG. 4 is a perspective view showing the electrical processing device, the first harness, and the support member in the battery module. The electrical processing device is disconnected. The electrical connector of the first harness is connected to the mating electrical connector. FIG. 5 is an exploded perspective view showing the battery module. A plurality of battery cells, nuts attached to them (only one is omitted), a plurality of support members, the first and second harnesses, and the electrical processing device are shown. FIG. 6 is a perspective view showing the electrical processing device, the first harness, and the support member in the battery module. The electrical processing device is disconnected. The electrical connector of the first harness is not connected to the counterpart electrical connector. FIG. 7 is a plan view of the first harness as viewed from the direction along the short side of the cross section of the insulating coating facing in the extending direction. FIG. 8 is a side view of the first harness as viewed from the direction along the long side of the cross section of the insulating coating in the extending direction. FIG. 9 is a plan view of the first harness mounted on the support member and viewed from the thickness direction. The electrical connector is omitted. FIG. 10 is a plan view of the second harness mounted on the support member and viewed from the thickness direction. The electrical connector is omitted. FIG. 11 is an enlarged side view showing the contact of the electrical connector in the second connection portion of the first harness as viewed from the direction along the long side in each embodiment of the present invention. The insulating coating and the conductor are cross-sectioned on a surface facing the direction along the long side of the contact. FIG. 12 is an enlarged plan view showing the contact in the second connection portion as viewed from the direction along the short side in each embodiment of the present invention. 13 is an enlarged view of a cross section taken along line XIII-XIII in FIG. FIG. 14 is an enlarged view of the FFC used in the first harness and the second harness as viewed from the direction along the short side in each embodiment of the present invention. FIG. 15 is a view showing the FFC in a cross section taken along a surface facing the direction in which the insulating coating extends, and further enlarged than FIG. 14 in each embodiment of the present invention. FIG. 16 is a perspective view showing a battery module according to the second embodiment of the present invention. A plurality of battery cells are arranged in a line along the depth direction, of which only a few in the foreground and a few in the back are drawn, and the battery cells between them are not shown. . FIG. 17 is a plan view of the battery module of the second embodiment viewed from the thickness direction. A plurality of battery cells are arranged in a line along the depth direction, of which only a few in the foreground and a few in the back are drawn, and the battery cells between them are not shown. . FIG. 18 shows that two harnesses out of overlapping harnesses of the battery module according to the second embodiment are taken out from each other and arranged in the width direction, and the second harness is similarly arranged. It is the top view seen from the said thickness direction which took out two harnesses also from the group, arranged them shifted in the width direction. The electrical connector is omitted. FIG. 19 is a plan view showing a first harness in the battery module according to the third embodiment of the present invention. FIG. 20 is a side view of the first harness of the third embodiment as viewed from the direction along the long side of the insulating coating and the conductor. FIG. 21 is a plan view of the battery module of the third embodiment viewed from the thickness direction. FIG. 22 is an enlarged plan view showing the main part of FIG. 21 as viewed from the thickness direction. This figure also shows the main part of the battery module of the fourth embodiment of the present invention. FIG. 23 is an enlarged plan view showing the main part of a modification of the battery module of the third embodiment as viewed from the thickness direction. This figure also shows the main part of a modification of the battery module of the fourth embodiment of the present invention. FIG. 24 is a perspective view showing a battery module according to a fourth embodiment of the present invention. A plurality of battery cells are arranged in a line along the depth direction, of which only a few in the foreground and a few in the back are drawn, and the battery cells between them are not shown. . FIG. 25 is a plan view of the battery module of the fourth embodiment as viewed from the thickness direction. A plurality of battery cells are arranged in a line along the depth direction, of which only a few in the foreground and a few in the back are drawn, and the battery cells between them are not shown. . FIG. 26 shows two harnesses out of overlapping harnesses of the first harness group of the battery module of the fourth embodiment, arranged in the width direction, and similarly arranged for the second harness. It is the top view seen from the said thickness direction which took out two harnesses also from the group, arranged them shifted in the width direction. The electrical connector is omitted. FIG. 27 is an enlarged perspective view showing a modification of the support member in each of the embodiments. FIG. 28 is an enlarged exploded perspective view showing a modification of the support member in each of the embodiments. FIG. 29 is an enlarged perspective view showing a modification of the connecting member in each of the above embodiments. It is further enlarged than FIG.27 and FIG.28.

  Embodiments of the present invention will be described below. 1 to 3 show a first embodiment of a battery module of the present invention. The battery module M includes a harness 100, a battery cell group 200, and an electrical processing device 400. In the battery module M, there are two harnesses 100, one battery cell group 200, and one electrical processing device 400. With this, the harness and the battery constituting the battery module of the present invention. The number of each of the cell group and the electrical processing device is not limitedly interpreted. At least one of the harness, the battery cell group, and the electrical processing device constituting the battery module of the present invention is sufficient. For example, the electrical processing device may be provided for each harness, and for example, a smaller number of the harnesses may be connected to two or more battery cell groups. 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 harness and the battery module of the battery module of the present invention are widely used in devices that require electric power. Therefore, not only hybrid vehicles or vehicles using an internal combustion engine, but also those mounted on, for example, ships, aircraft or other transport machines, or on air blowers, cooling devices or other electrical products Become.

  The harness 100 is obtained by processing the FFC 100 ′ shown in FIGS. 14 and 15. This FFC 100 'is a general-purpose product. The FFC 100 'includes an insulating coating 100a and a plurality of conductors 100b. The insulating coating 100a is made of a flexible insulating material and extends in a belt shape. That is, the cross section of the insulating coating 100a facing in the extending direction, that is, the cross section when the insulating coating 100a is cut by a plane orthogonal to the extending direction, the dimension of one side is sufficiently larger than the dimension of the other side. It has a long, substantially quadrangular shape, so that its cross section is thin. The one side is the long side of the insulating coating 100a, and the other side is the short side of the insulating coating 100a. Further, since the dimension of the insulating coating 100a in the extending direction is much longer than the dimensions of the long side and the short side of the insulating coating 100a, the insulating coating 100a has a shape like a flat string. The insulating coating 100a of this embodiment is formed of PET (polyethylene terephthalate resin), but may be formed of, for example, polyester, other synthetic resins, or other insulating materials. Each of the conductors 100b is formed in a linear shape from a flexible conductive material. The plurality of conductors 100b are provided inside the insulating coating 100a. The plurality of conductors 100b are arranged at intervals along the long side of the insulating coating 100a. Each conductor 100b extends in the direction in which the insulating coating 100a extends. The cross section of the conductor 100b facing in the extending direction, that is, the cross section when the conductor 100b is cut along a plane orthogonal to the extending direction, is substantially rectangular with one side dimension being sufficiently longer than the other side dimension. As a result, the cross section is thin. The one side is the long side of the conductor 100b, and the other side is the short side of the conductor 100b. Further, since the dimension in the extending direction of the conductor 100b is much longer than the dimensions of the long side and the short side of the conductor 100b, the conductor 100b is included in the linear concept, but is a thin foil shape. It is the shape of. In this case, the insulating coating 100a and the conductor 100b are arranged such that the long sides are parallel to each other and the short sides are parallel to each other. The cross-sectional shape of the conductor 100b may be, for example, a circle, a polygon, or other shapes. The conductor 100b of this embodiment is formed of hard copper, but may be formed of, for example, tin-plated annealed copper, other metals, or other conductive materials.

  The battery module M includes first and second two harnesses 100. As described above, when a plurality of harnesses are used for the battery module, the number of conductors 100b and the number of poles in each harness may coincide with each other, or the number of poles may be different. Therefore, the plurality of harnesses are obtained by processing the plurality of FFCs having different numbers of poles. FIGS. 7 to 9 show the first harness 100, and FIG. 10 shows the second harness 100. FIG. Each harness 100 includes a harness main body 110 configured by a midway portion in the extending direction of the insulating coating 100a in the FFC 100 ′, and a first connection portion extending from one end 111 of the harness main body 110 in the extending direction of the insulating coating 100a. 120 and a second connection portion 130 extending from the other end 112 of the harness body 110 in the extending direction of the insulating coating 100a. The harness body 110, the first connection portion 120, and the second connection portion 130 are continuous, and the insulating coating 100a is continuous between these three members, and each conductor 100b. Are also continuous.

  The battery cell group 200 will be described. Hereinafter, a depth direction, a width direction, and a 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, if it demonstrates in FIG. 2, when seeing a figure so that a code | symbol can be read correctly, the left-right direction of this figure is the said depth direction. Moreover, the up-down direction of this figure is the said width direction. Furthermore, the direction perpendicular to the paper surface of this figure is the thickness direction. As shown in FIGS. 1, 2, and 5, the battery cell group 200 includes a plurality of battery cells 210 arranged in a line along the depth direction. In this embodiment, the row of the battery cells 210 is linear, but the row may be bent. Each battery cell 210 has a pair of electrode terminals 211 and 212. Each of the electrode terminals 211 and 212 is formed with a male screw. Each electrode terminal 211, 212 is fitted with a nut 213 formed with a female screw, and is screwed to the male screw. The battery cell 210 is formed in a rectangular parallelepiped shape having sides extending along the depth direction, the width direction, and the thickness direction, and has a columnar shape on one end face in the thickness direction. The positive electrode terminal 211 and the columnar negative electrode terminal 212 are provided so as to protrude in the thickness direction. The plurality of battery cells 210 include the positive electrode terminals 211 and the negative electrode terminals 212 of the battery cells 210 arranged in the width direction, and the positive electrode terminals of the adjacent battery cells 210. 211 and the negative electrode terminal 212 are arranged so as to be aligned in the depth direction, thereby forming the battery cell group 200. Therefore, the battery cell group 200 forms a row of the two electrode terminals 211 and 212 extending in the depth direction. The first and second rows of the electrode terminals 211 and 212 are separated in the width direction. In FIG. 2, the lower side shows the first row of the electrode terminals 211 and 212, and the upper side shows the second row of the electrode terminals 211 and 212. When the row of the battery cells 210 is bent, the row of the electrode terminals 211 and 212 is also bent in a direction intersecting the depth direction.

  As shown in FIGS. 2 and 3, the battery cell group 200 further includes an electrode terminal connection member 220 connected to one or two of the electrode terminals 211 and 212. That is, a pair of the positive electrode terminal 211 and the negative electrode terminal 212 adjacent to each other in each row of the electrode terminals 211 and 212 are mechanically and electrically connected by the electrode terminal connection member 220 for two poles. Has been. In addition, at the end of the row of the electrode terminals 211 and 212, a single electrode terminal connection member 220 is mechanically and electrically connected to the single electrode terminal 211 or 212. This is often used in the battery cell 210 at the end when a plurality of the battery cells 210 are connected in series. Here, in the first row of the electrode terminals 211 and 212, a plurality of the electrode terminal connection members 220 for the two poles are used, but in the second row of the electrode terminals 211 and 212, for the two poles. The electrode terminal connecting member 220 is used, and the electrode terminal connecting member 220 for a single electrode is used at both ends in the depth direction. How to arrange the electrode terminal connecting member 220 for two poles and the electrode terminal connecting member 220 for a single pole in the row of the electrode terminals 211 and 212 is not limitedly interpreted by this embodiment. That is, it is appropriately selected according to the arrangement of the battery cells 210 in the battery cell group 200. The electrode terminal connecting member 220 for the two and single electrodes is formed of tinned soft copper, but may be formed of, for example, hard copper, other metal, or other conductive material. The electrode terminal connection member 220 for the bipolar and single electrodes is formed in a flat plate shape whose plate thickness direction is the thickness direction. The positive electrode terminal 211 and the negative electrode terminal 212 of the adjacent battery cell 210 are inserted into the two-electrode electrode terminal connecting member 220 penetrating in the thickness direction. Two through holes 221 are provided. The electrode terminal connecting member 220 for a single electrode penetrates the electrode terminal connecting member 220 in the thickness direction, and a single through hole 221 into which the positive electrode terminal 211 or the negative electrode terminal 212 of the battery cell 210 is inserted. have. The electrode terminals 211 and 212 are inserted into the through holes 221, and the nuts 213 are screwed to the male screws in the electrode terminals 211 and 212 protruding from the through holes 221.

  In the battery cell group 200, electrical signal detection units 222 are provided at a plurality of locations along the row of the battery cells 210. The electrical signal detector 222 is a location to be measured for detecting an electrical signal of the battery cell 210. The electrical signal detection unit 222 can detect an electrical signal corresponding to the state of the battery cell 210 around the electrical signal detection unit 222. In the case of this embodiment, the electric signal detector 222 is provided on the electrode terminal connecting member 220. Here, the electric signal detection unit 222 is provided in the electrode terminal connection member 220 for two electrodes and the electrode terminal connection member 220 for a single electrode, and is provided in all the electrode terminal connection members 220. The electrode terminal connection member 220 may be provided only for some of the electrodes. In the case of the electric signal detection unit 222 provided in the electrode terminal connection member 220 for the two electrodes because the electric signal detection unit 222 is provided in the electrode terminal connection member 220 for the two and single electrodes. The battery cell 210 in the periphery is the two battery cells 210 to which the electrode terminal connection member 220 for two electrodes is connected, and the electric signal detection provided in the electrode terminal connection member 220 for a single electrode In the case of the portion 222, the peripheral battery cell 210 is the single battery cell 210 to which the electrode terminal connection member 220 for a single electrode is connected. The electric signal detection unit 222 can detect an electric signal corresponding to the state of the battery cell 210 in the vicinity. Here, the voltage of the positive electrode terminal 211 or the negative electrode terminal 212 of the battery cell 210 can be detected with respect to the ground portion. In the electrical signal detection unit 222, for example, it is also possible to detect current. Further, for example, if a temperature sensor is provided in the battery cell and the output terminal of the temperature sensor is connected to the electric signal detector, the temperature of the battery cell can be detected as an electric signal. As described above, the electrical signal detection unit can detect an electrical signal related to voltage, current, temperature, or other state quantity as an electrical signal corresponding to the state of the peripheral battery cell. The electric signal detector may be provided on another member connected to the electrode terminal, or may be provided directly on the electrode terminal. In addition, the electric signal detector provided on the electrode terminal connecting member, the electric signal detector provided on the other member connected to the electrode terminal, and the electric signal detector provided on the electrode terminal; Two or more types of the above-mentioned electric signal detectors may be mixed. The peripheral battery cells may be a single battery cell or a plurality of battery cells.

  As shown in FIGS. 1 to 6 and FIGS. 9 and 10, the battery module M further includes a support member 300. The support member 300 is made of synthetic resin, but may be made of other insulating materials. When providing the support member 300 with a member formed of a conductive material, the support member 300 may be configured with a combination of other materials as long as at least a portion in contact with the member has an insulating property. Good. The support member 300 includes a support member main body 310 and a support portion 320 connected to the outside of the support member main body 310. Inside the support member main body 310, a housing chamber 311 is formed which opens to the bottom surface 313 of the support member main body 310 and receives one or two of the electrode terminals 211 and 212. The bottom surface 313 is one end surface in the thickness direction of the support member main body 310 and is an end surface facing the end surface of the battery cell 210 where the electrode terminals 211 and 212 are provided. The support member main body 310 has a wall 312 provided around the storage chamber 311. That is, in the case of this embodiment, the two walls 312 facing the depth direction are provided facing the depth direction, and the wall 312 facing the width direction is provided facing the width direction. The storage chamber 311 is formed inside the walls 312 so as to be surrounded by the walls 312. In this embodiment, the storage chamber 311 penetrates the support member main body 310 in the thickness direction, and also opens on the other end surface in the thickness direction. The support part 320 is formed in a flat plate shape whose thickness direction is the thickness direction. The support member main body 310 is connected to the outside of the wall 312 and extends with a width corresponding to the first connection portion 120 of the harness 100. In the case of this embodiment, the support part 320 is connected to the wall 312 on one side in the width direction of the support member main body 310 at the end in the width direction, and extends in the depth direction. The width of the first connection portion 120 of the harness 100 matches the dimension of the long side of the insulating coating 100a of the FFC 100 ', but may exceed this. In each row of the electrode terminals 211 and 212, the plurality of support members 300 are arranged such that the support portions 320 are located on the same side in the width direction. As a result, in each row of the electrode terminals 211 and 212, a series of the support portions 320 extending in the depth direction with a width corresponding to the first connection portion 120 of the harness 100 is formed. Although there is a gap between the adjacent support portions 320 in each row of the electrode terminals 211 and 212, the gap may be eliminated by closing the space between the adjacent support portions 320. A member provided with the electric signal detection unit 222 is provided in the support member 300. In the case of this embodiment, the member provided with the electric signal detector 222 is the electrode terminal connecting member 220, and therefore the electrode terminal connecting member 220 is provided on the support member 300. One support member 300 is provided for one electrode terminal connecting member 220. The electrode terminal connection member 220 for two poles is provided on the support member 300 for two poles, and the electrode terminal connection member 220 for single poles is provided on the support member 300 for single poles. The two-electrode electrode terminal connecting member 220 for connecting the two electrode terminals 211 and 212 is more dimensioned in the depth direction than the single-electrode electrode terminal connecting member 220 for connecting the one electrode terminal 211 or 212. Accordingly, the two-pole support member 300 is formed to have a larger dimension in the depth direction than the single-pole support member 300. The adjacent support members 300 are connected by a connecting member 330 extending in the depth direction. The connecting member 330 is connected to the support member main body 310, but may be connected to the support portion 320. As described above, one support member may be provided for a plurality of the electrode terminal connection members without providing the support member 300 for each of the electrode terminal connection members 220. Further, when the electrode terminal connecting member is not provided, the support member that accommodates one or two of the adjacent positive electrode terminal 211 and negative electrode terminal 212 in the accommodation chamber may be provided. The connecting members 330 are integrally connected to the adjacent supporting member main bodies 300, respectively. Even when the connecting member is connected to the support portion, the connecting member may be integrally connected to the support portion. However, the connecting member 330 is provided separately from the support member main body 310 or the support portion 320, and the support member adjacent to the support member main body 310 or the support portion 320 is provided by fitting the connection member 330 to the adjacent support member main body 310 or the support portion 320. 300 may be connected. In this case, the bipolar or monopolar support member 300 is provided on a scale provided with only one electrode terminal connection member 220 for the bipolar or monopolar, and the single support member 300 is required. The number of the supporting members 300 that are adjacent to each other may be connected in series. FIG. 27 to FIG. 29 show an example, and a plurality of the support members 300 provided with one electrode terminal connection member 220 for two electrodes or one electrode terminal connection member 220 for a single electrode are prepared and arranged in a row. The engaging members 314 are provided at both ends in the depth direction of the support member main body 310 in the adjacent support members 300 side by side, and both ends in the depth direction of the connecting member 330 provided separately from the support member main body 310 are arranged. A locking portion 331 that engages with the locking portion 314 is provided. Here, the connecting member 330 is a plate-like member that is curved in a U shape when viewed from the width direction, and the engaging portions 331 that are recessed in the depth direction are formed on the outer surfaces of both sides of the connecting member 330 in the depth direction. The engaging portions 314 protruding in the depth direction are formed on the outer surfaces of the support member main body 310 on both sides in the depth direction. Then, the engaging portions 331 on both sides of the connecting member 330 are fitted to the engaging portions 314 of the adjacent support member main body 310 using the flexibility of the engaging portions 331 and 314, respectively. Then, the said supporting member 330 adjacent by the said connection member 330 is connected. In this way, the required number of the supporting members 300 can be coupled according to the number of the battery cells 210 to be connected. In this modified example, the locking portion 314 is provided on the support member main body 310. However, the locking portion 314 protruding in the depth direction is formed on the outer surfaces of the support portion 320 on both sides in the depth direction, and the connecting member is formed. When the engaging portions 331 on both sides of the 330 are fitted to the engaging portions 314 of the adjacent support portions 320 using the flexibility of the engaging portions 331 and 314, the connecting member 330 is provided. The supporting members 330 adjacent to each other may be connected together. In this modification, the locking portion 331 of the connecting member 330 is formed to be recessed and the locking portion 314 of the support member main body 310 or the support portion 320 is protruded. The locking portion 331 of the connecting member 330 may be formed to protrude, and the locking portion 314 of the support member main body 310 or the support portion 320 may be recessed, or the connecting member 330 may be formed. In addition, unevenness may be formed on both sides of the support member main body 310 or the support portion 320 in the depth direction. 322 is an insertion portion provided on one side of the support portion 320 in the depth direction, and a side of the support portion 320 of the adjacent support member 300 on which the first connection portion 120 of the harness 100 is disposed. By inserting the insertion portion 322 into the space formed on the opposite side, the adjacent support members 300 can be connected without a gap, but the present invention does not provide such an insertion portion. Embodiments are included. The electrode terminal connection member 220 is provided on the support member main body 310 such that a connection portion with the electrode terminals 211 and 212 is disposed in the storage chamber 311. The connection portion of the electrode terminal connecting member 220 with the electrode terminals 211 and 212 is around one or two of the through holes 221, and this part is an opening opposite to the opening on the bottom surface side of the storage chamber 311. Is seen in the thickness direction.

  As shown in FIG. 3, the electric signal detector 222 is formed of a conductive member and connected to the electrode terminal connecting member 220. In this embodiment, the electric signal detector 222 is formed of the same material as that of the electrode terminal connecting member 220 and is formed integrally with the electrode terminal connecting member 220. Also good. The electrical signal detection unit 222 extends from the electrode terminal connection member 220 in the width direction and is provided so as to cross the support unit 320 in the width direction. The electric signal detection unit 222 is provided so as to go out of the wall 312 of the support member main body 310 and cross the surface of the support unit 320 on one side in the thickness direction in the width direction.

  Since the harness body 110 is formed by a midway portion of the FFC 100 'in the direction in which the insulating coating 100a extends, the harness body 110 can be freely bent in the same manner as the FFC 100'. For example, using the flexibility of the insulating coating 100a and the conductor 100b, the insulating coating 100a and the conductor 100b may be bent so as to bend along the long sides, or the insulating coating 100a and the conductor 100b may be bent. May be. In this embodiment, it is bent by the latter method.

  As shown in FIGS. 1 to 10, the first connecting portion 120 extends from the one end 111 of the harness body 110 in the extending direction of the insulating coating 100 a along the row of the battery cells 210 of the battery cell group 200. It extends. The first connection portion 120 is obtained by processing one end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. When the row of the battery cells 210 is bent and the row of the electrode terminals 211 and 212 is bent, the first connection portion 120 is also bent. This may be bent so as to bend along the long side using the flexibility of the insulating coating 100a and the conductor 100b, or bend by folding the insulating coating 100a and the conductor 100b. May be. In the first connection portion 120, the plurality of conductors 100 b are exposed to the outside from the insulating coating 100 a corresponding to the electrical signal detection portions 222 provided at a plurality of locations along the row of the battery cells 210. One exposed portion 121 is provided. The plurality of conductors 100b of the first connection portion 120 are provided with the plurality of exposed portions 121 so as to correspond to the electrical signal detection portion 222 on a one-to-one basis.

  Each of the exposed portions 121 is formed by providing an opening 121a in the insulating coating 100a. The opening 121a is provided so that the conductor 100b to be exposed is exposed to the outside and the other conductor 100b is not exposed to the outside. As shown in FIG. 3, when the first connection part 120 is disposed on the support part 320 of the support member 300, the conductors 100b correspond to this when viewed in the direction along the short side of the insulating coating 100a. There is a location that intersects with the electrical signal detector 222. The exposed portion 121 is provided at a location where each of the conductors 100b intersects with the corresponding electrical signal detecting portion 222. Accordingly, since the plurality of conductors 100b are arranged at intervals along the direction along the long side of the insulating coating 100a, the plurality of exposed portions 121 are displaced along the direction along the long side. It is arranged at the position. The opening 121a is formed in a quadrangular shape, and one side thereof is along the long side of the insulating coating 100a and the other side is along the direction in which the insulating coating 100a extends. You may form in a shape, polygonal shape, or another shape. The dimension of the opening 121a along the long side of the insulating coating 100a matches the dimension of the long side of the target conductor 100b, but may be longer or shorter. However, since the adjacent conductor 100b should not be reached, the maximum length is the dimension between the two conductors 100b adjacent to the target conductor 100b. The dimension of the opening 121a in the extending direction of the insulating coating 100a is slightly longer than the dimension of the electric signal detection unit 222 in the depth direction, but may be longer or shorter. When one surface in the direction along the short side of the insulating coating 100a and the conductor 100b is a front surface and the other surface is a back surface, the opening 121a is provided on both the front surface and the back surface of the insulating coating 100a. ing. These openings 121a are formed at a depth from the front surface or the back surface of the insulating coating 100a to the conductor 100b. The first connection part 120 is disposed on the support part 320 so that the back surface of the first connection part 120 is in contact with one surface of the support part 320 in the thickness direction. The connection unit 120 is disposed on the electric signal detection unit 222. Therefore, if the opening 121 a is formed only on the back surface of the insulating coating 100 a facing the electrical signal detection unit 222, the back surface of the exposed part 121 can be connected to the electrical signal detection unit 222. However, as in this embodiment, when the exposed portion 121 is connected to the electrical signal detecting portion 222 by, for example, resistance welding that uses heat generated during energization, resistance welding is performed on the conductor 100b. In order to secure a place where the current-carrying part of the machine is applied, the opening 121a is also provided on the surface of the insulating coating 100a on the opposite side of the support part 320 and the electric signal detection part 222 as in the embodiment. This facilitates the welding operation, which is preferable. The first connecting portion 120 has a bent portion 122 that bends in a U shape when viewed in a direction along the long sides of the insulating coating 100a and the conductor 100b in a gap formed between the adjacent support members 300. Although it is provided, it may be provided straight as viewed in the direction along the long side without doing so.

  As shown in FIGS. 2 and 4 and FIGS. 6 to 8, the second connection portion 130 extends from the other end 112 of the harness body 110 in the direction in which the insulating coating 100 a extends. The second connection part 130 is obtained by processing the other end side of the FFC 100 ′ in the direction in which the insulating coating 100 a extends. The second connection unit 130 is connected to the electrical processing device 400 that receives the electrical signal from the electrical signal detection unit 222. The electrical processing device 400 calculates the battery capacity based on the electrical signal from the electrical signal detector 222, determines the necessary charge / discharge capacity of the battery cell 210, and controls the charge / discharge of the battery cell 210. Demonstrate the function to perform. However, the electrical processing apparatus that is the subject of the present invention is not limited to an apparatus that exhibits such a function. The electrical processing device of the present invention receives the electrical signal from the electrical signal detection unit 222 and exhibits the function of controlling the battery cell 210 or other devices based on the electrical signal. including. Furthermore, the electrical processing device of the present invention receives the electrical signal from the electrical signal detection unit 222 and performs the electrical processing that exhibits a measurement function for displaying or recording a state quantity according to the electrical signal, for example. Also includes devices. As shown in FIGS. 2 and 4 and FIGS. 6 to 8, the second connecting portion 130 is configured by connecting an electrical connector 131 to the end of the FFC 100 ′. That is, the electrical connector 131 includes a housing 131a and a piercing contact 131b accommodated in the housing 131a. The contact 131b includes a box-shaped contact portion 131ba having an accommodation chamber 131bb opened at one end, and a connection portion 131bc provided continuously on the other end side of the contact portion 131ba, and the connection portion 131bc. A claw 131bd pointed toward the tip is formed to protrude. At the end of the FFC 100 ', the insulating coating 100a is divided between the conductors 100b, and the contacts 131b are connected to the conductors 100b. Then, the connecting portion 131bc of the contact 131b is applied to the divided insulating coating 100a and the insulating coating 100a of the conductor 100b, and the claw 131bd is one of the directions along the short side of the insulating coating 100a. It enters from the side, penetrates the insulating coating 100a and the conductor 100b, is bent into a U shape on the other side of the insulating coating 100a, and the tip presses the other side of the insulating coating 100a. The contacts 131b thus connected by piercing are accommodated in the housing 131a. The electrical processing apparatus 400 includes a casing 410, and the casing 410 is provided with a mating electrical connector 420 to which the electrical connector 131 is connected. The mating electrical connector 420 includes a housing 421 that fits into the housing 131a of the electrical connector 131, and a plurality of contacts 422 having pin-shaped contact portions provided inside the housing 421. The contacts 422 are connected to the corresponding input units among the plurality of input units of the electrical processing device 400, respectively. When the electrical connector 131 is connected to the mating electrical connector 420, the housing 131a and the housing 421 are fitted, and the contacts 422 are inserted into the receiving chambers 131bb of the contacts 131b, respectively. An electrical connector 131 is mechanically and electrically connected to the mating electrical connector 420. In this embodiment, the contact 131b of the electrical connector 131 is a female shape having a box-shaped contact portion 131ba and the contact 422 of the mating electrical connector 420 is a male shape having a pin-shaped contact portion. The electrical connector may be male and the mating electrical connector may be female. The electrical connector and the mating electrical connector may be electrical connectors having other structures. Further, although the contact 131b of the electrical connector 131 is a piercing contact, it may be a contact of a crimping type or a pressure contact type, for example. Furthermore, without providing the electrical connector in the second connection portion, an exposed portion exposed to the outside from the insulating coating 100a may be provided in each conductor 100b. In that case, the electrical processing apparatus 400 is provided with an electrical connector, the electrical connector is provided with a fork-shaped contact that can be elastically expanded, and the exposed conductor is sandwiched between the second connection portions by the contact. You may make it contact 100b. Further, the plurality of exposed portions 121 may be connected to the plurality of input portions of the electrical processing apparatus 400 without providing the electrical connector in the electrical processing apparatus 400. In this case, the connection is performed by, for example, soldering, brazing, welding, or other means. The electrical processing apparatus 400 is provided with a harness 430, and a signal related to control is output from the harness 430. When the electrical processing device has a measurement function or the like, a signal or the like related to the measurement result is output by such a harness. When the electric processing apparatus itself has a function of displaying or recording, such a harness may not be provided.

  The harness 100 is attached to the battery cell group 200. The first harness 100 is connected to the electrical signal detector 222 provided corresponding to the first row of the electrode terminals 211 and 212, and the second harness 100 is connected to the electrode terminals 211, 212, 212 is connected to the electric signal detector 222 provided corresponding to the second column 212. That is, the first connection part 120 is disposed on the support part 320 so that the back surface of the first connection part 120 is in contact with one surface of the support part 320 in the thickness direction. In this case, at least at several places in the depth direction, a tape having an adhesive layer formed on both sides between the back surface of the first connection part 120 and the one side surface in the thickness direction of the support part 320 is used. In such a case, the first connection part 120 can be stably attached to the support part 320. And the said exposed part 121 of the said 1st connection part 120 is each connected to the said corresponding electric signal detection part 222. FIG. That is, the back surface of the exposed portion 121 is connected to the electrical signal detector 222. The exposed portion 121 is connected to the electrical signal detecting portion 222 by welding. The welding is resistance welding that uses heat generated during energization. In that case, since the exposed portion 121 is provided by providing the opening 121a also on the surface of the insulating coating 100a, the current-carrying portion of a resistance welding machine can be applied to the exposed portion 121 of the surface, and welding is performed. It becomes easy to work. In such a case, the resistance welding current flows through the current-carrying portion, the exposed portion 121, and the electric signal detecting portion 222 of the resistance welding machine. However, the welding method is not limited to the resistance welding. Further, the connection between the exposed portion 121 and the electric signal detecting portion 222 may be performed by, for example, soldering, brazing, screwing, or other methods. Even when the electrical signal detection unit is constituted by the electrode terminal, the exposed portion may be connected to the electrical signal detection unit by welding, for example, other welding methods, soldering, brazing, screwing Or by other methods. Further, the conductor 100b of the second connection part 130 is connected to the corresponding input part of the electrical processing device 400, respectively. This is achieved by connecting the electrical connector 131 to the mating electrical connector 420.

  On one surface of the support portion 320 in the thickness direction, a protrusion 321 that rises in the thickness direction is provided at an end portion away from the center portion in the width direction. On the other hand, a hole 123 into which the protrusion 321 can be fitted is provided at an end portion of the first connecting portion 120 along the long side of the insulating coating 100a. If the protrusions 321 are fitted into the corresponding holes 123 when the first connection part 120 is positioned at a normal position in the support part 320, the support part 320 of the first connection part 120 may be inserted into the support part 320. Positioning is performed accurately. In addition, if the protrusions 321 are fitted into the corresponding holes 123 and the tips of the protrusions 321 are heated to collapse and thicken, the protrusions 321 cannot be removed from the holes 123, and the first connecting portion 120 and the The coupling force of the support part 320 increases. The protrusion 321 and the hole 123 may be provided at one end or at both ends. Further, the protrusion 321 and the hole 123 may not be provided.

  Therefore, in the first and second harnesses 100 of the first embodiment, the exposed portions 121 of the first connecting portion 120 are connected to the electric signal detecting portions 222, respectively, and the second connection is made. The battery module M can be formed by connecting the unit 130 to the electrical processing device 400.

  In that case, since each harness 100 is not bulky as compared with the case of using a normal electric wire in which a core wire is covered with an insulating coating as the harness, the area around each harness of the battery module M is compactly gathered. In addition, on the one end side of the general-purpose FFC 100 ′ having a length corresponding to the length from the battery cell group 200 to the electrical processing device 400, a plurality of the conductors 100b are exposed to the outside from the insulating coating 100a. The first connecting portion 120 is provided by performing a simple process of providing the exposed portion 121, and further, for example, the electric connector 131 is connected to the other end of the FFC 100 ′ or a plurality of the conductors 100b are connected to the outside from the insulating coating 100a The harness 100 of the battery module M can be obtained by providing the second connecting portion 130 by providing the exposed portion exposed to the surface. Therefore, for example, when the plurality of battery modules M having different arrangements of the battery cells 210 in the battery cell group 200 or relative positions of the battery cell group 200 and the electrical processing device 400 are set. However, the manufacturing cost of each battery module M can be reduced.

  The harness of the battery module of the present invention includes an embodiment in which the electrical signal detection unit is provided on the electrode terminal and the first connection unit is connected to the electrical signal detection unit. Among such various embodiments, in the case of each harness 100 of the battery module M of the first embodiment, the electric signal detection unit 222 is connected to one or two of the electrodes in the battery cell group 200. The electrode terminals are connected to the electrode terminals connecting members 220 for the bipolar and single electrodes connected to the terminals 211 and 212. In this case, if each of the electrode terminal connecting members 220 is formed in, for example, a flat plate shape or larger than the electrode terminals 211 and 212, the first connecting portion is provided on the electrode terminal. The workability of the connection work can be improved as compared with the case where the connection is made to the electric signal detection unit.

  The exposed portion of the first connection portion in the harness of the battery module of the present invention is configured such that the electrical signal is provided on a plurality of the conductors at a plurality of locations of the battery cell group along the row of the battery cells. It suffices to provide one by one so as to be exposed to the outside from the insulating coating corresponding to the detection portion, and the configuration is not particularly limited by the exposed portion 121 described in the embodiment of this section. In such various embodiments, in the case of the harness 100 of the battery module M of the first embodiment, the exposed portions 121 of the first connection portion 120 are connected to the insulating coating 100a. It was formed by providing an opening 121a. If it does in this way, the said exposed part 121 will be provided if the said opening 121a is formed, for example by punching. As a result, as compared with, for example, the work of stripping the conductor 100b from the insulating coating 100a, the setup of the work for providing the first connecting portion 120 to the general-purpose FFC 100 'is simplified.

  The exposed portion of the first connection portion in the battery module of the present invention may be connected to the electrode terminal. Among such various embodiments, in the case of the battery module M of the first embodiment, the battery cell 210 is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals 211 and 212 protrude from one end face thereof. Further, the support member 300 is provided, and the support member 300 is opened in the bottom surface 313 so that the storage chamber 311 for receiving one or two of the electrode terminals 211 and 212 is formed inside. The support member main body 310 having the wall 312 provided in the periphery thereof, and connected to the outside of the wall 312 of the support member main body 310 and extending with a width corresponding to the first connection portion 120 of each harness 100. The electrode terminal connection member 220, which is a member provided with the electric signal detection unit 222, is provided on the support member 300. It was. If it does in this way, the said end surface of the said battery cell 210 so that the one or two or more said electrode terminals 211 and 212 of the said battery cell 210 may each be received in each storage chamber 311 of the said one or two or more said supporting members 300 Accordingly, if the first connection part 120 of the harness 100 is disposed on the support part 320 and the exposed parts 121 are connected to the electric signal detection parts 222, the harness 100 is connected to the battery cell group 200. Connected to. As a result, the workability of the connection work of each harness 100 to the battery cell group 200 can be improved.

  The electrode terminal connection member of the battery module of the present invention may be one connected to one or two of the electrode terminals in the battery cell group, and particularly the electrode terminal connection described in the embodiment of this section. The configuration of the member 220 is not limited. Among such various embodiments, in the case of the battery module M of the first embodiment, the electric signal detection unit 222 is provided so as to cross the support unit 320 in the width direction. In this way, since the connection work of the exposed part 121 of the first connection part 120 of the harness 100 to the electrical signal detection part 222 can be performed outside the support member main body 310, workability depends on the connection method. Will improve. In this embodiment, since welding is employed as a connection method, workability can be improved by providing the electric signal detection unit 222 so as to cross the support unit 320 in the width direction.

  The method for connecting the exposed portion to the electrical signal detector in the battery module of the present invention is not limited, and may be performed by, for example, soldering, brazing, screwing, or other methods. Among such various embodiments, in the case of the battery module M of the first embodiment, the exposed portion 121 is connected to the electric signal detecting portion 222 by welding. In this way, the connection strength can be increased as compared with, for example, soldering. Moreover, although resistance welding was used in the said embodiment, since the said opening 121a was provided in the said back surface and the said surface of the said insulation coating 100a, the electricity supply part of a resistance welding machine is applied to the said exposed part 121 of the said surface. This facilitates welding work.

  Hereinafter, other embodiments of the battery module and the harness of the present invention will be described. The battery module M and each harness 100 of these other embodiments include the first embodiment described above and its modifications, and the battery module M and the harness 100 of the various embodiments described above. The configuration will be quoted as it is, and the first embodiment, its modification, and configurations different from the configurations of the various embodiments will be additionally described.

  16 to 18 show a second embodiment of the battery module and the harness of the present invention. The battery module M of the second embodiment includes the harness 100, the battery cell group 200, and the electrical processing device 400, similarly to the battery module M of the first embodiment. Yes. In the case of the battery module M of the first embodiment, the plurality of conductors 100b of the first connection part 120 of the harness 100 are connected to all the electric signal detection parts 222 of the battery cell group 200. It was. On the other hand, in the case of the battery module M of the second embodiment, the plurality of conductors 100b of the first connection part 120 of the harness 100 are connected to the plurality of electric signal detection parts of the battery cell group 200. 222 is connected to a part of them. The battery module M of the second embodiment includes a plurality of the harnesses 100, and all the electric signal detection units 222 of the battery cell group 200 are divided into a plurality of groups, and the first of the harnesses 100 is divided. The plurality of conductors 100 b of the connection unit 120 are connected to the plurality of electrical signal detection units 222 in the group of the corresponding electrical signal detection units 222.

  The harness 100 of the second embodiment is obtained by processing the FFC 100 'having the same configuration as the FFC 100' described in the first embodiment. Although the battery module M of the first embodiment includes the first and second harnesses 100, the battery module M of the second embodiment includes a group of the first and second harnesses 100. It has. In FIG. 17, the first harness 100 group is on the right side of the battery cell group 200 from the electrical processing device 400, and the second harness group 100 is on the left side. Each group of the harnesses 100 includes a plurality of the harnesses 100, and the harnesses 100 are shown in FIG. Each of the harnesses 100 includes the harness main body 110 configured by a midway portion in the extending direction of the insulating coating 100a in the FFC 100 ′, and the first extending from the one end 111 of the harness main body 110 in the extending direction of the insulating coating 100a. The connecting portion 120 and the second connecting portion 130 extending from the other end 112 of the harness main body 110 in the extending direction of the insulating coating 100a are provided. The harness body 110, the first connection portion 120, and the second connection portion 130 are continuous, and the insulating coating 100a is continuous between these three members, and each conductor 100b. Are also continuous.

  The battery cell group 200 has the same configuration as the battery cell group 200 of the first embodiment, and each of the battery cell groups 200 has a pair of the electrode terminals 211 and 212 and is arranged in a row in the depth direction. A battery cell 210 is provided. That is, the battery cell 210 is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals 211 and 212 protrude from one end surface thereof. The plurality of battery cells 210 include the positive electrode terminals 211 and the negative electrode terminals 212 of the battery cells 210 arranged in the width direction, and the positive electrode terminals of the adjacent battery cells 210. 211 and the negative electrode terminal 212 are arranged so as to be aligned in the depth direction, thereby forming the battery cell group 200. Therefore, the battery cell group 200 forms the row of the two electrode terminals 211 and 212 extending in the depth direction. The first and second rows of the electrode terminals 211 and 212 are separated in the width direction.

  The battery cell group 200 further includes the electrode terminal connection member 220 connected to one or two of the electrode terminals 211 and 212. The electrode terminal connecting member 220 has the same configuration as the electrode terminal connecting member 220 of the first embodiment. That is, a pair of the positive electrode terminal 211 and the negative electrode terminal 212 adjacent to each other in each row of the electrode terminals 211 and 212 are mechanically and electrically connected by the electrode terminal connection member 220 for two electrodes. Has been. In addition, at the end of the row of the electrode terminals 211 and 212, the single electrode terminal connection member 220 is mechanically and electrically connected to the single electrode terminal 211 or 212. In the first row of the electrode terminals 211 and 212, a plurality of the electrode terminal connection members 220 for two electrodes are used, but in the second row of the electrode terminals 211 and 212, the electrodes for the two electrodes are used. The terminal connection member 220 is used, and the monopolar electrode terminal connection member 220 is used at both ends in the depth direction. The electrode terminal connection member 220 for the bipolar and single electrodes is formed in a flat plate shape whose plate thickness direction is the thickness direction. The positive electrode terminal 211 and the negative electrode terminal 212 of the adjacent battery cell 210 are inserted into the two-electrode electrode terminal connecting member 220 penetrating in the thickness direction. The two through holes 221 are provided. The single electrode terminal connecting member 220 for a single electrode penetrates the electrode terminal connecting member 220 in the thickness direction and the single through hole into which the positive electrode terminal 211 or the negative electrode terminal 212 of the battery cell 210 is inserted. 221.

  As shown in FIG. 3, the electrical signal detection unit 222 has the same configuration as the electrical signal detection unit 222 of the first embodiment. The electric signal detection unit 222 is provided at a plurality of locations along the row of the battery cells 210 in the battery cell group 200. The electrical signal detector 222 is provided on the electrode terminal connection member 220. Here, the electric signal detection unit 222 is provided in the electrode terminal connection member 220 for two electrodes and the electrode terminal connection member 220 for a single electrode, and is provided in all the electrode terminal connection members 220. The electrode terminal connection member 220 may be provided only for some of the electrodes.

  The support member 300 has the same configuration as the support member 300 of the first embodiment. The support member 300 includes the support member main body 310 and the support portion 320 connected to the outside of the support member main body 310. The support member 300 has a wall 312 that is provided in the periphery so that the housing chamber 311 that opens to the bottom surface 313 and receives one or two of the electrode terminals 211 and 212 is formed inside. And a support portion 320 connected to the outside of the wall 312 of the support member main body 310 and extending with a width corresponding to the first connection portion 120 of the harness 100. In each row of the electrode terminals 211 and 212, the plurality of support members 300 are arranged such that the support portions 320 are located on the same side in the width direction. As a result, in each row of the electrode terminals 211 and 212, a series of the support portions 320 extending in the depth direction with a width corresponding to the first connection portion 120 of the harness 100 is formed. The electrode terminal connection member 220 provided with the electrical signal detection unit 222 is provided on the support member 300. One support member 300 is provided for one electrode terminal connecting member 220. The bipolar electrode terminal connection member 220 is provided on the bipolar support member 300, and the single electrode terminal connection member 220 is provided on the bipolar support member 300. The adjacent support members 300 are connected by a connecting member 330 extending in the depth direction. The electrode terminal connection member 220 is provided on the support member main body 310 such that a connection portion with the electrode terminals 211 and 212 is disposed in the storage chamber 311.

  As shown in FIG. 3, as in the first embodiment, the electrical signal detector 222 is formed of a conductive member and connected to the electrode terminal connection member 220. The electrical signal detection unit 222 extends from the electrode terminal connection member 220 in the width direction and is provided so as to cross the support unit 320 in the width direction. The electric signal detection unit 222 is provided so as to go out of the wall 312 of the support member main body 310 and cross the surface of the support unit 320 on one side in the thickness direction in the width direction.

  As in the case of the first embodiment, the first connecting portion 120 is obtained by processing one end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. In the first connection portion 120, the plurality of conductors 100 b are exposed to the outside from the insulating coating 100 a corresponding to the electrical signal detection portions 222 provided at a plurality of locations along the row of the battery cells 210. The exposed portions 121 are provided one by one. The plurality of conductors 100b of the first connection portion 120 are provided with the plurality of exposed portions 121 so as to correspond to the electrical signal detection portion 222 on a one-to-one basis.

  As in the case of the first embodiment, each exposed portion 121 is formed by providing the opening 121a in the insulating coating 100a. When the first connection part 120 is disposed on the support part 320 of the support member 300, the conductor 100b corresponds to the electrical signal detection part 222 corresponding to the short side of the insulating coating 100a. The exposed portions 121 are provided at the locations where the exposed portions intersect. The opening 121a is provided on both the front surface and the back surface of the insulating coating 100a.

  As in the case of the first embodiment, the second connection portion 130 is obtained by processing the other end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. The second connection unit 130 is connected to the electrical processing device 400 that receives the electrical signal from the electrical signal detection unit 222. The electrical processing apparatus 400 has the same configuration as the electrical processing apparatus 400 of the first embodiment. As in the case of the first embodiment, the second connection portion 130 is configured by connecting the electrical connector 131 to the end of the FFC 100 '. That is, the electrical connector 131 includes the housing 131a and the piercing contact 131b accommodated in the housing 131a. As in the first embodiment, the electrical processing apparatus 400 includes the mating electrical connector 420 that fits the casing 410 and the electrical connector 131. The electrical processing device 400 is provided with the harness 430, and a signal related to control is output from the harness 430.

  As in the case of the first embodiment, the harness 100 is attached to the battery cell group 200. The group of the first harness 100 is connected to the electric signal detection unit 222 provided corresponding to the first row of the electrode terminals 211 and 212, and the group of the second harness 100 is The electrode terminals 211 and 212 are connected to the electric signal detector 222 provided corresponding to the second column. That is, the first connection part 120 is disposed on the support part 320 so that the back surface of the first connection part 120 is in contact with one surface of the support part 320 in the thickness direction. And the said exposed part 121 of the said 1st connection part 120 is each connected to the said corresponding electric signal detection part 222. FIG. That is, the back surface of the exposed portion 121 is connected to the electrical signal detector 222. The exposed portion 121 is connected to the electrical signal detecting portion 222 by welding. Further, the conductor 100b of the second connection part 130 is connected to the corresponding input part of the electrical processing device 400, respectively. This is achieved by connecting the electrical connector 131 to the mating electrical connector 420.

  As shown in FIG. 18, in the case of the battery module M of the second embodiment, a plurality of the electric signal detection units 222 corresponding to the rows of the first electrode terminals 211 and 212 are provided in the depth direction. Are divided into a plurality of groups. The harnesses 100 are assigned and connected one by one from the group of the first harnesses 100 corresponding to the groups of the electric signal detection units 222. Each harness 100 has a different length along the direction in which the insulating coating 100a of the harness body 110 extends. Among these, the harness 100 having the longest harness body 110 (hereinafter, the longest harness 100) is connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222 at one end in the depth direction. . The harness 100 having the shortest harness body 110 (hereinafter, the shortest harness 100) is connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222 at the other end in the depth direction. Yes. Further, the harness 100 (hereinafter referred to as the intermediate harness 100) having a length between the harness body 110 of the longest harness 100 and the harness body 110 of the shortest harness 100 is midway in the depth direction. Are connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222. When the plurality of electrical signal detectors 222 are divided into the two groups along the depth direction, the intermediate harness 100 is absent. In addition, when the plurality of electric signal detection units 222 are divided into four or more groups along the depth direction, two or more of the intermediate harnesses 100 are used. The length of the main body 110 is close to the length of the harness main body 110 of the longest harness 100, and the length of the harness main body 110 is close to the length of the harness main body 110 of the shortest harness 100. In the group of the first harnesses 100, the harnesses 100 are arranged on the support portion 320 so as to overlap in the thickness direction. That is, the shortest harness 100 is disposed on the support 320, the intermediate harness 100 is disposed thereon, and the longest harness 100 is disposed thereon. When the intermediate harness 100 is not present, the longest harness 100 is disposed on the shortest harness 100. When there are two or more intermediate harnesses 100, the intermediate harnesses 100 overlap between the shortest harness 100 and the longest harness 100. At least in several places in the depth direction, a tape having an adhesive layer formed on both surfaces may be interposed between the overlapping harnesses 100. In such a case, a plurality of the first connection parts 120 are stably attached to the support part 320. Can be attached. Similarly, the plurality of electric signal detection units 222 corresponding to the columns of the second electrode terminals 211 and 212 are also divided into a plurality of the groups along the depth direction. The harnesses 100 are assigned and connected one by one from the group of the second harnesses 100 corresponding to the groups of the electric signal detection units 222. In each of the first harness 100 and the second harness 100, the first connecting portion 120 is connected to the electrical processing device 400.

  The flexible part 122, the hole 123, the nut 213, the protrusion 321 and the connecting member 330 provided in the battery module M and the harness 100 of the first embodiment are also the second embodiment. The battery module M and the harnesses 100 are similarly provided.

  From the battery module M and the harness 100 of the second embodiment, the same operations and effects as the battery module M and the harness 100 of the first embodiment can be obtained. By overlapping the harness 100, the harness 100 that is overlapped is not bulky as compared to the case of using a normal electric wire having a core wire covered with an insulating coating as the harness, so that each harness around the battery module M is compact. It is gathered up.

  19 to 22 show a third embodiment of the battery module and the harness of the present invention. The battery module M of the third embodiment includes the harness 100, the battery cell group 200, and the electrical processing device 400, like the battery module M of the first embodiment. Yes. In the case of the battery module M of the first embodiment, the exposed portions 121 of the first connection portion 120 are formed by providing the openings 121a in the insulating coating 100a. On the other hand, in the battery module M of the third embodiment, the exposed portions 121 of the first connection portion 120 divide the insulating coating 100a between the conductors 100b, and The end is formed by stripping from the end of the insulating coating 100a.

  The harness 100 of the third embodiment can be obtained by processing the FFC 100 ′ having the same configuration as the FFC 100 ′ described in the first embodiment.

  The battery module M of the third embodiment includes the first and second harnesses 100. 19 and 20 show the first harness 100, and FIG. 21 shows the first and second harnesses 100. Each of the harnesses 100 includes the harness main body 110 configured by a midway portion in the extending direction of the insulating coating 100a in the FFC 100 ′, and the first extending from the one end 111 of the harness main body 110 in the extending direction of the insulating coating 100a. The connecting portion 120 and the second connecting portion 130 extending from the other end 112 of the harness main body 110 in the extending direction of the insulating coating 100a are provided. The harness body 110, the first connection portion 120, and the second connection portion 130 are continuous, and the insulating coating 100a is continuous between these three members, and each conductor 100b. Are also continuous.

  The battery cell group 200 has the same configuration as the battery cell group 200 of the first embodiment, and each of the battery cell groups 200 has a pair of the electrode terminals 211 and 212 and is arranged in a row in the depth direction. A battery cell 210 is provided. That is, the battery cell 210 is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals 211 and 212 protrude from one end surface thereof. The plurality of battery cells 210 include the positive electrode terminals 211 and the negative electrode terminals 212 of the battery cells 210 arranged in the width direction, and the positive electrode terminals of the adjacent battery cells 210. 211 and the negative electrode terminal 212 are arranged so as to be aligned in the depth direction, thereby forming the battery cell group 200. Therefore, the battery cell group 200 forms the row of the two electrode terminals 211 and 212 extending in the depth direction. The first and second rows of the electrode terminals 211 and 212 are separated in the width direction.

  The battery cell group 200 further includes the electrode terminal connection member 220 connected to one or two of the electrode terminals 211 and 212. The electrode terminal connecting member 220 has the same configuration as the electrode terminal connecting member 220 of the first embodiment. That is, a pair of the positive electrode terminal 211 and the negative electrode terminal 212 adjacent to each other in each row of the electrode terminals 211 and 212 are mechanically and electrically connected by the electrode terminal connection member 220 for two electrodes. Has been. In addition, at the end of the row of the electrode terminals 211 and 212, the single electrode terminal connection member 220 is mechanically and electrically connected to the single electrode terminal 211 or 212. In the first row of the electrode terminals 211 and 212, a plurality of the electrode terminal connection members 220 for two electrodes are used, but in the second row of the electrode terminals 211 and 212, the electrodes for the two electrodes are used. The terminal connection member 220 is used, and the monopolar electrode terminal connection member 220 is used at both ends in the depth direction. The electrode terminal connection member 220 for the bipolar and single electrodes is formed in a flat plate shape whose plate thickness direction is the thickness direction. The positive electrode terminal 211 and the negative electrode terminal 212 of the adjacent battery cell 210 are inserted into the two-electrode electrode terminal connecting member 220 penetrating in the thickness direction. The two through holes 221 are provided. The single electrode terminal connecting member 220 for a single electrode penetrates the electrode terminal connecting member 220 in the thickness direction and the single through hole into which the positive electrode terminal 211 or the negative electrode terminal 212 of the battery cell 210 is inserted. 221.

  As shown in FIG. 22, the electric signal detector 222 has the same configuration as the electric signal detector 222 of the first embodiment. The electric signal detection unit 222 is provided at a plurality of locations along the row of the battery cells 210 in the battery cell group 200. The electrical signal detector 222 is provided on the electrode terminal connection member 220. Here, the electric signal detection unit 222 is provided in the electrode terminal connection member 220 for two electrodes and the electrode terminal connection member 220 for a single electrode, and is provided in all the electrode terminal connection members 220. The electrode terminal connection member 220 may be provided only for some of the electrodes.

  The support member 300 has the same configuration as the support member 300 of the first embodiment. The support member 300 includes the support member main body 310 and the support portion 320 connected to the outside of the support member main body 310. The support member 300 has a wall 312 that is provided in the periphery so that the housing chamber 311 that opens to the bottom surface 313 and receives one or two of the electrode terminals 211 and 212 is formed inside. And a support portion 320 connected to the outside of the wall 312 of the support member main body 310 and extending with a width corresponding to the first connection portion 120 of the harness 100. In each row of the electrode terminals 211 and 212, the plurality of support members 300 are arranged such that the support portions 320 are located on the same side in the width direction. As a result, in each row of the electrode terminals 211 and 212, a series of the support portions 320 extending in the depth direction with a width corresponding to the first connection portion 120 of the harness 100 is formed. The electrode terminal connection member 220 provided with the electrical signal detection unit 222 is provided on the support member 300. One support member 300 is provided for one electrode terminal connecting member 220. The bipolar electrode terminal connection member 220 is provided on the bipolar support member 300, and the single electrode terminal connection member 220 is provided on the bipolar support member 300. The adjacent support members 300 are connected by a connecting member 330 extending in the depth direction. The electrode terminal connection member 220 is provided on the support member main body 310 such that a connection portion with the electrode terminals 211 and 212 is disposed in the storage chamber 311.

  As shown in FIG. 22, as in the first embodiment, the electrical signal detector 222 is formed of a conductive member and connected to the electrode terminal connection member 220. The electric signal detection unit 222 is provided on one end side in the width direction of the electrode terminal connection member 220 and is provided in the vicinity of the wall 312 of the storage chamber 311. The wall 312 around the electrical signal detection unit 222 is provided with a recess so as to communicate the storage chamber 311 to the support unit 320, and the divided insulation coating 100a or the conductor 100b described later is passed through. It comes to let you. As in the first embodiment, the electrical signal detection unit may extend from the electrode terminal connecting member in the width direction and be provided so as to cross the support unit in the width direction. Moreover, you may form the said electric signal detection part by a part of said electrode terminal connection member. In the third embodiment, the exposed portion 121 is connected to the conductive electric signal detector 222 connected to the electrode terminal connecting member 220 in the same manner as in the first embodiment, and the electric signal detector 222 is connected. The voltage can be detected by the electrical processing device via the conductor 100b. FIG. 23 shows a modification of the electric signal detector 222. In this modification, the electric signal detection unit 222 is configured by a temperature sensor attached to the electrode terminal connection member 220, and the exposed portion 121 is connected to the electrode terminal connection member 220. In this way, the temperature of the electrical signal detector 222 can be electrically detected by the electrical processing device via the conductor 100b. In that case, the electrical signal detection unit 222 is provided as the temperature sensor in the electrode terminal connection member 220, the exposed portion 121 is connected to the output terminal of the temperature sensor as the electrode terminal connection member 220, and Except for the fact that the electrical processing device 400 is configured to process the output signal of the temperature sensor, the other configurations of the battery module M and the harness 100 are the same as the battery module M of the third embodiment. The configuration of the harness 100 is exactly the same.

  As in the case of the first embodiment, the first connecting portion 120 is obtained by processing one end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. In the first connection portion 120, the plurality of conductors 100 b are exposed to the outside from the insulating coating 100 a corresponding to the electrical signal detection portions 222 provided at a plurality of locations along the row of the battery cells 210. The exposed portions 121 are provided one by one. The plurality of conductors 100b of the first connection portion 120 are provided with the plurality of exposed portions 121 so as to correspond to the electrical signal detection portion 222 on a one-to-one basis.

  In the case of the first embodiment, each exposed portion 121 is formed by providing the opening 121a in the insulating coating 100a. On the other hand, in the case of the third embodiment, each exposed portion 121 of the first connection portion 120 divides the insulating coating 100a between the conductors 100b, and terminates the conductor 100b with the insulating coating 100a. It is formed by stripping from the end. The ends of the conductor 100b and the insulating coating 100a are bent so as to face the width direction by folding the insulating coating 100a and the conductor 100b. Instead, the ends of the conductor 100b and the insulating coating 100a may be bent so as to face in the width direction using the flexibility of the insulating coating 100a and the conductor 100b. When the first connection part 120 is arranged on the support part 320 of the support member 300, the conductor 100b corresponds to the electric signal detection part 222 corresponding to the short side of the insulation coating 100a. The exposed portions 121 are provided where there are.

  As in the case of the first embodiment, the second connection portion 130 is obtained by processing the other end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. The second connection unit 130 is connected to the electrical processing device 400 that receives the electrical signal from the electrical signal detection unit 222. The electrical processing apparatus 400 has the same configuration as the electrical processing apparatus 400 of the first embodiment. As in the case of the first embodiment, the second connection portion 130 is configured by connecting the electrical connector 131 to the end of the FFC 100 '. That is, the electrical connector 131 includes the housing 131a and the piercing contact 131b accommodated in the housing 131a. As in the first embodiment, the electrical processing apparatus 400 includes the mating electrical connector 420 that fits the casing 410 and the electrical connector 131. The electrical processing device 400 is provided with the harness 430, and a signal related to control is output from the harness 430.

  As in the case of the first embodiment, the harness 100 is attached to the battery cell group 200. The first harness 100 is connected to the electrical signal detector 222 provided corresponding to the first row of the electrode terminals 211 and 212, and the second harness 100 is connected to the electrode terminals 211, 212, 212 is connected to the electric signal detector 222 provided corresponding to the second column 212. That is, the first connection part 120 is disposed on the support part 320 so that the back surface of the first connection part 120 is in contact with one surface of the support part 320 in the thickness direction. And the said exposed part 121 of the said 1st connection part 120 is each connected to the said corresponding electric signal detection part 222. FIG. That is, the exposed part 121 is connected to the electrical signal detecting part 222. The exposed portion 121 is connected to the electrical signal detecting portion 222 by welding. Further, the conductor 100b of the second connection part 130 is connected to the corresponding input part of the electrical processing device 400, respectively. This is achieved by connecting the electrical connector 131 to the mating electrical connector 420.

  The flexible part 122, the hole 123, the nut 213, the protrusion 321 and the connecting member 330 provided in the battery module M and the harness 100 of the first embodiment are also the second embodiment. The battery module M and the harnesses 100 are similarly provided.

  From the battery module M and the harnesses 100 of the third embodiment, the same operations and effects as the battery module M and the harnesses 100 of the first embodiment can be obtained. Further, each exposed portion 121 of the first connecting portion 120 is formed by dividing the insulating coating 100a between the conductors 100b and stripping the end of the conductor 100b from the end of the insulating coating 100a. Since the exposed portion 121 is provided by a general process for the general-purpose FFC 100 ′, the general-purpose processing apparatus for the FFC 100 ′ can be used.

  24 to 26 show a fourth embodiment of the battery module and the harness of the present invention. The battery module M of the fourth embodiment includes the harness 100, the battery cell group 200, and the electrical processing device 400, like the battery module M of the first embodiment. Yes. In the case of the battery module M of the first embodiment, the plurality of conductors 100b of the first connection part 120 of the harness 100 are connected to all the electric signal detection parts 222 of the battery cell group 200. It was. On the other hand, in the case of the battery module M of the fourth embodiment, the plurality of conductors 100b of the first connection part 120 of the harness 100 are connected to the plurality of electric signal detection parts of the battery cell group 200. 222 is connected to a part of them. The battery module M of the fourth embodiment includes a plurality of the harnesses 100, and divides all the electric signal detection units 222 of the battery cell group 200 into a plurality of groups, and the first of the harnesses 100. The plurality of conductors 100 b of the connection unit 120 are connected to the plurality of electrical signal detection units 222 in the group of the corresponding electrical signal detection units 222.

  The harness 100 of the fourth embodiment can be obtained by processing the FFC 100 ′ having the same configuration as the FFC 100 ′ described in the first embodiment. Although the battery module M of the first embodiment includes the first and second harnesses 100, the battery module M of the fourth embodiment includes a group of the first and second harnesses 100. It has. In FIG. 25, the first harness 100 group is on the right side when viewing the battery cell group 200 from the electrical processing device 400, and the second harness group 100 is on the left side. Each group of the harnesses 100 includes a plurality of the harnesses 100, and the harnesses 100 are shown in FIG. Each of the harnesses 100 includes the harness main body 110 configured by a midway portion in the extending direction of the insulating coating 100a in the FFC 100 ′, and the first extending from the one end 111 of the harness main body 110 in the extending direction of the insulating coating 100a. The connecting portion 120 and the second connecting portion 130 extending from the other end 112 of the harness main body 110 in the extending direction of the insulating coating 100a are provided. The harness body 110, the first connection portion 120, and the second connection portion 130 are continuous, and the insulating coating 100a is continuous between these three members, and each conductor 100b. Are also continuous.

  The battery cell group 200 has the same configuration as the battery cell group 200 of the first embodiment, and each of the battery cell groups 200 has a pair of the electrode terminals 211 and 212 and is arranged in a row in the depth direction. A battery cell 210 is provided. That is, the battery cell 210 is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals 211 and 212 protrude from one end surface thereof. The plurality of battery cells 210 include the positive electrode terminals 211 and the negative electrode terminals 212 of the battery cells 210 arranged in the width direction, and the positive electrode terminals of the adjacent battery cells 210. 211 and the negative electrode terminal 212 are arranged so as to be aligned in the depth direction, thereby forming the battery cell group 200. Therefore, the battery cell group 200 forms the row of the two electrode terminals 211 and 212 extending in the depth direction. The first and second rows of the electrode terminals 211 and 212 are separated in the width direction.

  The battery cell group 200 further includes the electrode terminal connection member 220 connected to one or two of the electrode terminals 211 and 212. The electrode terminal connecting member 220 has the same configuration as the electrode terminal connecting member 220 of the first embodiment. That is, a pair of the positive electrode terminal 211 and the negative electrode terminal 212 adjacent to each other in each row of the electrode terminals 211 and 212 are mechanically and electrically connected by the electrode terminal connection member 220 for two electrodes. Has been. In addition, at the end of the row of the electrode terminals 211 and 212, the single electrode terminal connection member 220 is mechanically and electrically connected to the single electrode terminal 211 or 212. In the first row of the electrode terminals 211 and 212, a plurality of the electrode terminal connection members 220 for two electrodes are used, but in the second row of the electrode terminals 211 and 212, the electrodes for the two electrodes are used. The terminal connection member 220 is used, and the monopolar electrode terminal connection member 220 is used at both ends in the depth direction. The electrode terminal connection member 220 for the bipolar and single electrodes is formed in a flat plate shape whose plate thickness direction is the thickness direction. The positive electrode terminal 211 and the negative electrode terminal 212 of the adjacent battery cell 210 are inserted into the two-electrode electrode terminal connecting member 220 penetrating in the thickness direction. The two through holes 221 are provided. The single electrode terminal connecting member 220 for a single electrode penetrates the electrode terminal connecting member 220 in the thickness direction and the single through hole into which the positive electrode terminal 211 or the negative electrode terminal 212 of the battery cell 210 is inserted. 221.

  As shown in FIG. 22, the electric signal detector 222 has the same configuration as the electric signal detector 222 of the first embodiment. The electric signal detection unit 222 is provided at a plurality of locations along the row of the battery cells 210 in the battery cell group 200. The electrical signal detector 222 is provided on the electrode terminal connection member 220. Here, the electric signal detection unit 222 is provided in the electrode terminal connection member 220 for two electrodes and the electrode terminal connection member 220 for a single electrode, and is provided in all the electrode terminal connection members 220. The electrode terminal connection member 220 may be provided only for some of the electrodes.

  The support member 300 has the same configuration as the support member 300 of the first embodiment. The support member 300 includes the support member main body 310 and the support portion 320 connected to the outside of the support member main body 310. The support member 300 has a wall 312 that is provided in the periphery so that the housing chamber 311 that opens to the bottom surface 313 and receives one or two of the electrode terminals 211 and 212 is formed inside. And a support portion 320 connected to the outside of the wall 312 of the support member main body 310 and extending with a width corresponding to the first connection portion 120 of the harness 100. In each row of the electrode terminals 211 and 212, the plurality of support members 300 are arranged such that the support portions 320 are located on the same side in the width direction. As a result, in each row of the electrode terminals 211 and 212, a series of the support portions 320 extending in the depth direction with a width corresponding to the first connection portion 120 of the harness 100 is formed. The electrode terminal connection member 220 provided with the electrical signal detection unit 222 is provided on the support member 300. One support member 300 is provided for one electrode terminal connecting member 220. The bipolar electrode terminal connection member 220 is provided on the bipolar support member 300, and the single electrode terminal connection member 220 is provided on the bipolar support member 300. The adjacent support members 300 are connected by a connecting member 330 extending in the depth direction. The electrode terminal connection member 220 is provided on the support member main body 310 such that a connection portion with the electrode terminals 211 and 212 is disposed in the storage chamber 311.

  As shown in FIG. 22, as in the first embodiment, the electrical signal detector 222 is formed of a conductive member and connected to the electrode terminal connection member 220. The electric signal detection unit 222 is provided on one end side in the width direction of the electrode terminal connection member 220 and is provided in the vicinity of the wall 312 of the storage chamber 311. The wall 312 around the electrical signal detection unit 222 is provided with a recess so as to communicate the storage chamber 311 to the support unit 320, and the divided insulation coating 100a or the conductor 100b described later is passed through. It comes to let you. As in the first embodiment, the electrical signal detection unit may extend from the electrode terminal connecting member in the width direction and be provided so as to cross the support unit in the width direction. Moreover, you may form the said electric signal detection part by a part of said electrode terminal connection member. In the fourth embodiment, the exposed portion 121 is connected to the conductive electric signal detector 222 connected to the electrode terminal connecting member 220 in the same manner as in the first embodiment, and the electric signal detector 222 is connected. The voltage can be detected by the electrical processing device via the conductor 100b. As shown in FIG. 23, the electric signal detection unit 222 may be configured by a temperature sensor attached to the electrode terminal connection member 220, and the exposed portion 121 may be connected to the electrode terminal connection member 220.

  As in the case of the first embodiment, the first connecting portion 120 is obtained by processing one end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. In the first connection portion 120, the plurality of conductors 100 b are exposed to the outside from the insulating coating 100 a corresponding to the electrical signal detection portions 222 provided at a plurality of locations along the row of the battery cells 210. The exposed portions 121 are provided one by one. The plurality of conductors 100b of the first connection portion 120 are provided with the plurality of exposed portions 121 so as to correspond to the electrical signal detection portion 222 on a one-to-one basis.

  In the case of the first embodiment, each exposed portion 121 is formed by providing the opening 121a in the insulating coating 100a. On the other hand, in the case of the third embodiment, each exposed portion 121 of the first connection portion 120 divides the insulating coating 100a between the conductors 100b, and terminates the conductor 100b with the insulating coating 100a. It is formed by stripping from the end. The ends of the conductor 100b and the insulating coating 100a are bent so as to face the width direction by folding the insulating coating 100a and the conductor 100b. Instead, the ends of the conductor 100b and the insulating coating 100a may be bent so as to face in the width direction using the flexibility of the insulating coating 100a and the conductor 100b. When the first connection part 120 is arranged on the support part 320 of the support member 300, the conductor 100b corresponds to the electric signal detection part 222 corresponding to the short side of the insulation coating 100a. The exposed portions 121 are provided where there are.

  As in the case of the first embodiment, the second connection portion 130 is obtained by processing the other end side of the FFC 100 ′ in the extending direction of the insulating coating 100 a. The second connection unit 130 is connected to the electrical processing device 400 that receives the electrical signal from the electrical signal detection unit 222. The electrical processing apparatus 400 has the same configuration as the electrical processing apparatus 400 of the first embodiment. As in the case of the first embodiment, the second connection portion 130 is configured by connecting the electrical connector 131 to the end of the FFC 100 '. That is, the electrical connector 131 includes the housing 131a and the piercing contact 131b accommodated in the housing 131a. As in the first embodiment, the electrical processing apparatus 400 includes the mating electrical connector 420 that fits the casing 410 and the electrical connector 131. The electrical processing device 400 is provided with the harness 430, and a signal related to control is output from the harness 430.

  As in the case of the first embodiment, the harness 100 is attached to the battery cell group 200. The group of the first harness 100 is connected to the electric signal detection unit 222 provided corresponding to the first row of the electrode terminals 211 and 212, and the group of the second harness 100 is The electrode terminals 211 and 212 are connected to the electric signal detector 222 provided corresponding to the second column. That is, the first connection part 120 is disposed on the support part 320 so that the back surface of the first connection part 120 is in contact with one surface of the support part 320 in the thickness direction. And the said exposed part 121 of the said 1st connection part 120 is each connected to the said corresponding electric signal detection part 222. FIG. That is, the back surface of the exposed portion 121 is connected to the electrical signal detector 222. The exposed portion 121 is connected to the electrical signal detecting portion 222 by welding. Further, the conductor 100b of the second connection part 130 is connected to the corresponding input part of the electrical processing device 400, respectively. This is achieved by connecting the electrical connector 131 to the mating electrical connector 420.

  As shown in FIG. 26, in the case of the battery module M of the fourth embodiment, a plurality of the electric signal detection units 222 corresponding to the rows of the first electrode terminals 211 and 212 are provided in the depth direction. Are divided into a plurality of groups. The harnesses 100 are assigned and connected one by one from the group of the first harnesses 100 corresponding to the groups of the electric signal detection units 222. Each harness 100 has a different length along the direction in which the insulating coating 100a of the harness body 110 extends. Among these, the harness 100 having the longest harness body 110 (hereinafter, the longest harness 100) is connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222 at one end in the depth direction. . The harness 100 having the shortest harness body 110 (hereinafter, the shortest harness 100) is connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222 at the other end in the depth direction. Yes. Further, the harness 100 (hereinafter referred to as the intermediate harness 100) having a length between the harness body 110 of the longest harness 100 and the harness body 110 of the shortest harness 100 is midway in the depth direction. Are connected to the plurality of electrical signal detection units 222 in the group of the electrical signal detection units 222. When the plurality of electrical signal detectors 222 are divided into the two groups along the depth direction, the intermediate harness 100 is absent. In addition, when the plurality of electric signal detection units 222 are divided into four or more groups along the depth direction, two or more of the intermediate harnesses 100 are used. The length of the main body 110 is close to the length of the harness main body 110 of the longest harness 100, and the length of the harness main body 110 is close to the length of the harness main body 110 of the shortest harness 100. In the group of the first harnesses 100, the harnesses 100 are arranged on the support portion 320 so as to overlap in the thickness direction. That is, the longest harness 100 is disposed on the support 320, the intermediate harness 100 is disposed thereon, and the shortest harness 100 is disposed thereon. When the intermediate harness 100 is absent, the shortest harness 100 is disposed on the longest harness 100. When there are two or more intermediate harnesses 100, the intermediate harnesses 100 overlap between the longest harness 100 and the shortest harness 100. However, in this embodiment, the longest harness 100, the intermediate harness, and the shortest harness 100 may be stacked in any order. At least in several places in the depth direction, a tape having an adhesive layer formed on both surfaces may be interposed between the overlapping harnesses 100. In such a case, a plurality of the first connection parts 120 are stably attached to the support part 320. Can be attached. Similarly, the plurality of electric signal detection units 222 corresponding to the columns of the second electrode terminals 211 and 212 are also divided into a plurality of the groups along the depth direction. The harnesses 100 are assigned and connected one by one from the group of the second harnesses 100 corresponding to the groups of the electric signal detection units 222. In each of the first harness 100 and the second harness 100, the first connecting portion 120 is connected to the electrical processing device 400.

  The flexible part 122, the hole 123, the nut 213, the protrusion 321 and the connecting member 330 provided in the battery module M and the harness 100 of the first embodiment are also the fourth embodiment. The battery module M and the harnesses 100 are similarly provided.

  From the battery module M and the harness 100 of the fourth embodiment, the same operations and effects as the battery module M and the harness 100 of the first embodiment can be obtained. By overlapping the harness 100, the harness 100 that is overlapped is not bulky as compared with the case of using a normal electric wire having a core wire covered with an insulation coating as the harness, so that each harness around the battery module M is compact. It is gathered up. In addition, each exposed portion 121 of the first connecting portion 120 is formed by dividing the insulating coating 100a between the conductors 100b and stripping the end of the conductor 100b from the end of the insulating coating 100a. Since the exposed portion 121 is provided by a general process for the general-purpose FFC 100 ′, the general-purpose processing apparatus for the FFC 100 ′ can be used.

  The battery module and the harness of the present invention include embodiments in which the features of the embodiments described above and modifications thereof are combined. Furthermore, the embodiment described above and the modifications thereof are only a few examples of the battery module and the harness of the present invention. Accordingly, the battery module and the harness of the present invention are not limitedly interpreted by the description of these embodiments and the modifications thereof.

M battery module 100 harness 100 'FFC
DESCRIPTION OF SYMBOLS 100a Insulation coating 100b Conductor 110 Harness main body 111 One end 112 Other end 120 1st connection part 121 Exposed part 121a Opening 130 2nd connection part 131 Electrical connector 200 Battery cell group 210 Battery cell 211 Electrode terminal 212 Electrode terminal 220 Electrode terminal connection member 222 Electrical signal detection unit 300 Support member 310 Support member body 311 Storage chamber 312 Wall 313 Bottom surface 320 Support unit 400 Electrical processing device 420 Counterpart electrical connector

Claims (8)

A flexible insulating coating extending in a belt shape, and a plurality of lines extending along the long side of the insulating coating in the direction of the extending direction and extending in the extending direction of the insulating coating. FFC with flexible conductor is processed,
A harness body constituted by a midway portion of the FFC in the extending direction of the insulating coating;
The battery in the battery cell group, which extends from one end of the harness body in the extending direction of the insulation coating and includes a plurality of battery cells arranged in a row, each having a pair of electrode terminals. An exposed portion exposed to the outside from the insulating coating corresponding to a plurality of electrical signal detectors provided at a plurality of locations along the row of cells and capable of detecting electrical signals according to the state of the surrounding battery cells. A first connection provided one by one;
A harness of a battery module comprising: a second connection portion extending from the other end of the harness body in the extending direction of the insulation coating and connected to an electrical processing device that receives an electrical signal from the electrical signal detection portion. .   The battery module harness according to claim 1, wherein the electrical signal detection unit is provided on an electrode terminal connection member connected to one or two of the electrode terminals in the battery cell group.   The harness of the battery module according to claim 1 or 2, wherein each exposed portion of the first connection portion is formed by providing an opening in the insulating coating.   Each said exposed part of the said 1st connection part is formed by dividing | segmenting the said insulation coating between the said conductors, and exposing the termination | terminus of the said conductor from the termination | terminus of the said insulation coating. Battery module harness. The battery module harness according to any one of claims 1 to 4,
The battery cell group comprising a plurality of the battery cells, each having a pair of the electrode terminals and arranged in a row,
Comprising the electrical processing device,
The exposed portions of the first connecting portions are respectively connected to the corresponding electrical signal detecting portions;
The battery module in which the conductor of the second connection part is connected to the input part of the corresponding electrical processing device. The battery cell is formed in a rectangular parallelepiped shape, and a pair of the electrode terminals protrudes from one end surface thereof,
The support member further includes a support member main body having a wall provided in the periphery so that a housing chamber that is opened in the bottom surface and receives one or two of the electrode terminals is formed inside. A support portion connected to the outside of the wall of the support member body and extending with a width corresponding to the first connection portion of the harness,
The battery module according to claim 5, wherein a member provided with the electric signal detection unit is provided on the support member.   The battery module according to claim 6, wherein the electric signal detection unit is provided so as to cross the support unit in the width direction.   The battery module according to any one of claims 5 to 7, wherein the exposed portion is connected to the electric signal detecting portion by welding.

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