JP2014093218A - Bus bar module and power supply - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bus bar module and a power supply that can properly protect an electrical wire wired in a wiring portion.SOLUTION: A bus bar module 1 has plural bus bars 3 for connecting plural cells in series, voltage detection terminals 4 connected to the respective bus bars, a pair of power supply terminals 5, and a case 6 in which the bus bars 3, the voltage detection terminals 4 and the power supply terminals 5 are mounted. The case has plural mount portions 7 in which the respective bus bars and the respective voltage detection terminals are mounted, a gutter-like wiring portion 9 which is provided in parallel to the plural mount portions and wires a first electrical wire, a pair of covers 9A, 9B covering a predetermined range out of the opening of the wiring portion, an electrical wire holding portion 11 which is provided in the gap between a pair of covers which are adjacent to each other through a gap in the plural covers and holds a second electrical wire connected to the power supply terminal, and a protection cover 17 which is provided in the gap and covers the opening of the wiring portion. The protection cover is provided so as to be continuous with the electrical wire holding portion.

Description

  The present invention relates to a bus bar module and a power supply device, and more particularly to a bus bar module for connecting a plurality of batteries in series and a power supply device having the bus bar module.

  For example, an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and the like are equipped with the power supply device as a drive source of the electric motor. In this power supply device, a pair of battery connection plates as described in Patent Document 1 is used.

  The battery connection plate 101 shown in FIG. 6 is attached to a battery assembly (not shown) formed by alternately stacking batteries (square batteries) having a positive electrode at one end and a negative electrode at the other end in opposite directions. Thus, the stacked batteries are connected in series. Each battery connection plate 101 includes a resin plate 106 that is integrally molded with a molding die, a power terminal 105 that is fitted in a first housing 107 located at one end of the resin plate 106, and a resin plate 106. A plurality of two-hole bus bars 103 that are fitted in a plurality of second accommodating portions 108 located on the end side and that connect a plurality of batteries in series, and a voltage detection that is connected to the bus bars 103 so as to detect a voltage. And a terminal for use (not shown). The 1st accommodating part 107 and the some 2nd accommodating part 108 are connected along the overlapping direction (arrow Y direction) of a some battery.

  The resin plate 106 has a first housing portion 107 and a plurality of second housing portions 108 that are linearly connected to each other, and a plurality of signal lines (not shown) connected to a plurality of voltage detection terminals indicated by an arrow Y. A hook-shaped routing groove 109 that is routed along, a plurality of groove covers 110 that cover predetermined positions in the opening of the routing groove 109, and a power line (not shown) connected to the power terminal 105 are indicated by arrows Y And a hook 111 for holding the power supply line so as to be routed along. The groove cover 110 is connected to the opening end of the routing groove 109 via a hinge 112 so as to be rotatable by 180 degrees. The groove cover 110 is provided so as to be freely displaceable between an open position that exposes the opening of the routing groove 109 and a closed position that is rotated 180 degrees from the open position to close the opening of the routing groove 109. When the resin plate 106 is molded, the resin plate 106 is located at an open position that does not cover the opening of the routing groove 109.

JP 2004-98295 A

  However, in the above-described conventional battery connection plate 101, the resin plate 106 has a plurality of groove covers 110 in the open position at the time of molding, and overlaps the position where the hook 111 is formed in a plan view. The groove cover 110 could not be formed. For this reason, the groove cover 110 cannot be formed so as to cover the entire opening of the routing groove 109, and the signal line cannot be properly protected in a portion where the groove cover 110 is not formed. was there.

  An object of this invention is to provide the bus bar module and power supply device which can protect appropriately the electric wire routed in the routing part.

  The present invention according to claim 1 is a plurality of bus bars for connecting a plurality of batteries in series by connecting electrodes of adjacent batteries among a plurality of batteries arranged so that each electrode is arranged in a straight line. A voltage detection terminal connected to each bus bar; a power supply terminal connected to a load and connected to a battery electrode located at an end of the plurality of batteries; the plurality of bus bars; A bus bar module including a plurality of voltage detection terminals and a case for accommodating the power supply terminals, wherein the case is provided along the arrangement direction, and each of the bus bars and the voltage detection are provided. A plurality of housing portions for housing the terminals, and a wiring portion provided in parallel with the plurality of housing portions and for routing the first electric wires connected to the voltage detection terminals along the arrangement direction; Of the opening of the routing section A plurality of covers that cover a range, and a wire holding portion that is provided in a gap between a pair of adjacent covers spaced apart from each other and that holds the second wire connected to the power terminal. And a protective cover that is provided in the gap and covers the opening of the routing part, wherein the protective cover is provided continuously to the wire holding part.

  According to a second aspect of the present invention, in the first aspect of the present invention, the electric wire holding portion is provided continuously with the routing portion and holds the second electric wire, and the holding portion. A cover portion that covers the second electric wire held by the main body and a hinge that rotatably connects the cover portion to the main body, and the protective cover is attached to the cover portion. It is characterized by being continuously extended in a direction away from the hinge.

  According to a third aspect of the present invention, in the present invention of the second aspect, the cover portion is provided with a locking portion, and the holding portion main body is locked to the locking portion. When the cover and the protective cover are rotated by the hinge, the locking portion is locked to the locking receiving portion, and the covering portion is held by the holding portion main body. Further, the protective cover is positioned at a position covering the second electric wire, and the protective cover is positioned at a position covering the opening of the routing portion.

  The present invention according to claim 4 is described in any one of claims 1 to 3, and a battery assembly including a plurality of batteries in which positive electrodes and negative electrodes are alternately stacked in opposite directions. And a bus bar module.

  According to the first and fourth aspects of the present invention, in the bus bar module, the case is provided along the arrangement direction, and each of the bus bars and the voltage detecting terminals are accommodated in a plurality of accommodating portions, A wiring portion provided in parallel with the housing portion and configured to route the first electric wire connected to the voltage detection terminal along the arrangement direction; and a plurality of covers covering a predetermined range of the openings of the wiring portion; Among the plurality of covers, provided in a gap between a pair of adjacent covers spaced apart from each other, an electric wire holding part for holding the second electric wire connected to the power terminal, and a wiring provided in the gap A protective cover that covers the opening of the wiring portion, and the protective cover is provided continuously to the electric wire holding portion, so that the protective cover covers the opening of the routing portion while forming the case by resin integral molding. Because the gap between the covers of the It is possible to prevent damage and short. That is, the 1st electric wire routed in the routing part can be protected appropriately.

  According to this invention of Claim 2, an electric wire holding | maintenance part is provided in the wiring part continuously, The holding | maintenance part main body holding a 2nd electric wire, and the 2nd electric wire hold | maintained at this holding | maintenance part main body. Since the covering cover and the hinge for pivotally connecting the covering part to the holding part main body are integrally provided, the protective cover is formed to extend in a direction away from the hinge continuously to the covering part. A cover and a protective cover can be additionally formed on the case while diverting the conventional configuration, and a change in the mold for molding the case can be minimized, and an increase in cost can be suppressed. .

  According to the third aspect of the present invention, the covering portion is provided with the locking portion, the holding portion main body is provided with the locking receiving portion to be locked to the locking portion, and the covering portion and the protective cover are provided by the hinge. Is rotated so that the locking portion is locked to the locking receiving portion, the cover portion is positioned at a position covering the second electric wire held by the holding portion main body, and the protective cover is arranged in the routing portion. Therefore, the assembly work can be made more efficient.

It is a disassembled perspective view of the power supply device concerning one embodiment of this invention. It is a top view which shows the bus bar module which comprises the said power supply device. It is a top view which shows the assembly operation | work of the said bus bar module. It is a top view which shows a mode that the cover which comprises the said bus bar module is rotated by a wiring part. (A) is the enlarged view which looked at the bus bar module part shown in FIG. 3 from a different angle, (B) is a figure which shows the state which the protective cover closed. It is a top view which shows the conventional bus bar module.

  A bus bar module and a power supply device according to an embodiment of the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, the bus bar module 1 of the present invention is attached to the side surface of the battery assembly 2 shown in FIG. That is, the power supply device 10 includes a battery assembly 2 and a pair of bus bar modules 1 attached to both side surfaces of the battery assembly 2. The power supply device 10 is mounted on an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using both an engine and an electric motor, and supplies power to the electric motor.

  As shown in FIG. 1, the battery assembly 2 includes a plurality of batteries 20 and a fixing member (not shown) that fixes the plurality of batteries 20 so as to overlap each other. Each battery 20 includes a battery main body 21 in which an electrolytic solution is filled in a box-shaped housing, and a positive electrode 22 protruding from one side surface and the other side surface of the battery main body 21 (the “electrode” in the claims). And a negative electrode 23 (corresponding to “electrode” in the claims). Each of the positive electrode 22 and the negative electrode 23 is formed in a cylindrical shape from a conductive metal, and a thread groove that is screwed into the nut 2 </ b> A is formed on the outer peripheral surface thereof.

  Further, the plurality of batteries 20 are arranged so that the positive electrodes 22 and the negative electrodes 23 are alternately arranged in a straight line along the overlapping direction of the batteries 20. 1 indicates the arrangement direction of the plurality of batteries 20 and the longitudinal direction of the bus bar module 1, and the arrow X indicates the width direction of each battery 20, that is, the width direction of the bus bar module 1. Z indicates the height direction of each battery 20, that is, the height direction of the bus bar module 1.

  The pair of bus bar modules 1 connect the plurality of batteries 20 described above in series. As shown in FIGS. 1 and 2, a plurality of batteries 20 are connected by connecting positive electrodes 22 and negative electrodes 23 of adjacent batteries 20. A plurality of bus bars 3 that connect batteries 20 in series, a plurality of voltage detection terminals 4 that are electrically connected to each bus bar 3 to detect the voltage of each battery 20, and are connected to each voltage detection terminal 4. A plurality of voltage detection lines 40 (first electric wires), a pair of power supply terminals 5 connected to electrodes of different polarities located at both ends of the plurality of batteries 20, and a pair of power supply terminals 5 are connected. A pair of power supply lines 50 (second electric wires) and a plurality of bus bars 3, a plurality of voltage detection terminals 4, a pair of power supply terminals 5, a plurality of voltage detection lines 40, and a pair of power supply lines 50. The case 6 is provided. In FIG. 1, the power supply terminal 5 and the voltage detection line 40 are omitted.

  Each of the plurality of bus bars 3 is obtained by pressing a metal plate or the like, and as shown in FIG. 3, the positive electrode 22 and the negative electrode 23 of electrodes adjacent to each other are inserted into the plate-like metal plate. In this configuration, a pair of through holes 3a are formed. The bus bar 3 is fixed and electrically connected to the positive electrode 22 and the negative electrode 23 by screwing the nut 2A into the positive electrode 22 and the negative electrode 23 inserted into the pair of through holes 3a.

  Each of the plurality of voltage detection terminals 4 is obtained by pressing a metal plate or the like. As shown in FIG. 2, a rectangular plate-shaped terminal body 41 and an outer edge of the terminal body 41 are provided. A rectangular plate-like bottom plate 42 that is formed continuously and extending in the direction of arrow Z, and is formed upright from both ends of the bottom plate 42 in the width direction (arrow Y direction). And a pair of caulking pieces 43 for caulking the core wire of the voltage detection line 40. The terminal body 41 is formed with a through hole 4a at the center thereof. Each voltage detection terminal 4 is electrically connected to each bus bar 3 while either one of the positive electrode 22 or the negative electrode 23 of the battery 20 is inserted into the through hole 4a and overlapped with each bus bar 3. The caulking piece 43 caulks the core of the voltage detection line 40 and is electrically connected to the voltage detection line 40.

  The pair of power supply terminals 5 are located at both ends of the plurality of batteries 20 and are connected to electrodes having different polarities and to a load. Each power source terminal 5 is obtained by pressing a metal plate or the like, and is formed in a rectangular plate shape as shown in FIGS. 1 and 2. Each power supply terminal 5 has a through hole 5a at one end in the longitudinal direction (arrow Z direction), and a caulking piece 51 at the other end. The power supply terminal 5 is inserted into the through hole 5a with an electrode located at an end of the plurality of batteries 20, and is electrically connected to electrodes of different polarities. 50 core wires are caulked to be electrically connected to the power line 50.

  As shown in FIG. 3, the case 6 is formed in a substantially rectangular shape that is substantially equal to the upper surface of the battery assembly 2, and overlaps the upper surface of the battery assembly 2. The case 6 includes a plurality of bus bar accommodating portions 7 (accommodating portions) that accommodate the bus bars 3 and the voltage detection terminals 4 superimposed on the bus bars 3 and are connected in a straight line along the arrow Y direction. One terminal accommodating portion 8 that accommodates each voltage detection terminal 4 and power supply terminal 5 and is provided adjacent to an end in the arrow Y direction of the plurality of bus bar accommodating portions 7, and a plurality of bus bar accommodating portions 7. A hook-shaped routing portion 9 that is provided in parallel in the alignment direction (arrow Y direction) and connects the voltage detection line 40 connected to the voltage detection terminal 4 in the arrow Y direction; A pair of covers 9A and 9B that cover a predetermined range of the opening, and a wire holder that is provided in a gap between the pair of covers 9A and 9B and that routes the power line 50 connected to the power terminal 5 in the arrow Y direction. Opening of the routing portion 9 provided in the gap between the portion 11 and the pair of covers 9A, 9B And the protective cover 17 which covers (shown in FIG. 1), is configured to include a. That is, the entire opening of the routing portion 9 is covered with the pair of covers 9 </ b> A and 9 </ b> B and the protective cover 17.

  As shown in FIG. 3, the case 6 is provided with a plurality of communication portions 18 that connect the plurality of bus bar accommodating portions 7 and the routing portions 9 and communicate the bus bar accommodating portions 7 with the routing portions 9. It has been. Each communication part 18 is formed in a bowl shape, and the voltage detection line 40 from each bus bar accommodating part 7 is led out to the routing part 9. The case 6 is provided with a plurality of bus bar accommodating portions 7 and terminal accommodating portions 8 on the upper side in the arrow Z direction (upper side in FIG. 3) of the routing portion 9, and below the routing portion 9 in the arrow Z direction. The electric wire holding part 11 is provided on the side (the lower side in FIG. 3), and the wiring part 9 is provided between the plurality of bus bar accommodating parts 7 and the terminal accommodating part 8 and the electric wire holding part 11. In addition, a plurality of bus bar accommodating portions 7, a single terminal accommodating portion 8, a routing portion 9, a pair of covers 9A and 9B, a wire holding portion 11, a protective cover 17, and a plurality of communicating portions 18 constituting the case 6, It is integrally molded with a synthetic resin.

  As shown in FIG. 1, the plurality of bus bar accommodating portions 7 are each formed in a box shape having a rectangular plate-like bottom wall 71 for positioning the bus bar 3 on the surface. The bottom wall 71 is formed with a pair of through holes 7 a into which the positive electrode 22 and the negative electrode 23 of the battery 20 are inserted.

  As shown in FIG. 3, the terminal accommodating portion 8 is formed in a bowl shape having a rectangular plate-like bottom wall 81 that positions the voltage detection terminal 4 and the power supply terminal 5 that are overlapped with each other on the surface. The bottom wall 81 is formed with one through hole (not shown) into which the positive electrode 22 or the negative electrode 23 of the battery 20 is inserted. The terminal accommodating portion 8 is arranged so that the lower end portion in the arrow Z direction leads out the voltage detection line 40 connected to the voltage detecting terminal 4 accommodated in the terminal accommodating portion 8 to the routing portion 9. The lower end portion in the arrow Z direction is provided so as to communicate with the cable portion 9 and is led out so as to route the power supply line 50 connected to the power supply terminal 5 along the arrow Y direction.

  As shown in FIGS. 3 and 4, the routing portion 9 includes a rectangular plate-shaped bottom wall 91 that positions the voltage detection line 40 connected to the voltage detection terminal 4 on the surface, and the width direction of the bottom wall 91. It has both side walls 92A and 92B erected from both ends in the direction of arrow Z, and is formed in a bowl shape. A plurality of portions of the bottom wall 91 are thinned (not shown). The first side wall 92A on the upper side (communication portion 18 side) of the side walls 92A and 92B is provided with a first lock receiving portion 96 that is engaged with a first lock portion 95 provided on each of the covers 9A and 9B. It has been. The first lock receiving portion 96 is provided between the plurality of communication portions 18 (that is, a position where the communication portion 18 is not provided), and is provided at the distal end portion of the first side wall 92A.

  As shown in FIGS. 3 and 4, the pair of covers 9 </ b> A and 9 </ b> B are arranged at intervals in the arrow Y direction so as to cover a predetermined range in the opening of the routing portion 9. Each cover 9 </ b> A, 9 </ b> B is formed in a plate shape whose width dimension is substantially equal to the dimension between both side walls 92 </ b> A, 92 </ b> B (arrow Z direction) of the routing portion 9, and through the first hinge 90. And is connected to the routing portion 9 so as to be rotatable by 180 degrees. A first hinge 90 is continuously provided on one edge of each cover 9A, 9B on the wiring section 9 side (that is, on the arrow Z direction side), and a first hinge 90 is provided on the other edge. A first lock portion 95 that is engaged with the one lock receiving portion 96 is provided.

  As shown in FIG. 3, a plurality of first hinges 90 are provided at positions corresponding to the first lock portions 95 and the first lock receiving portions 96, and at the distal end portion of the second side wall 92 </ b> B of the routing portion 9. It is provided continuously. Each first hinge 90 is connected to a pair of covers 9A and 9B so as to be rotatable by 180 degrees about the arrow Y direction as a rotation center axis, and each cover 9A and 9B is closed to cover the opening of the routing unit 9 And an opening position where the opening of the routing portion 9 is exposed. Further, when the case 6 is molded by resin integral molding (that is, immediately after being molded), the pair of covers 9A and 9B are positioned at the open positions shown in FIGS.

  As shown in FIG. 3, the electric wire holding part 11 is placed on the plate-like holding part main body 12 for placing the power supply line 50 arranged in the arrow Y direction on the surface thereof, and the holding part main body 12. The U-shaped cover portion 13 that covers the power line 50 and the second hinge 14 that rotatably connects the cover portion 13 to the holding portion main body 12 are provided. The holding unit main body 12 has a bottom wall 91 of the routing unit 9 continuously provided on one side in the arrow Z direction, and a second hinge 14 provided continuously on the other side.

  As shown in FIG. 5A, the holding body 12 has an engaging claw 30 (an engaging portion) provided in the cover portion 13 at an end on the side of the routing portion 9 in the arrow Z direction. A latch receiving portion 19 is provided. The latch receiving portion 19 is provided so as to protrude from the holding portion main body 12 so as to face the second side wall 92B of the routing portion 9, and the claw receiving portion 25 to which the latch claw 30 latches. The claw receiving portion 25 is provided with a guide portion 26 that guides the locking claw 30. A claw receiving portion 25 is provided at the end of the holding portion main body 12 side (in the arrow Y direction) of the surface of the main body portion 24 on the side of the wiring portion 9, and on the side of the claw receiving portion 25 away from the holding portion main body 12. A guide part 26 is provided. The claw receiving portion 25 is formed by cutting out a part of the main body portion 24 so that the locking claw 30 can be locked. Therefore, the portion of the main body 24 where the claw receiving portion 25 is provided is thin and is provided so as to be elastically deformable in the arrow Z direction.

  As shown in FIGS. 5A and 5B, the cover portion 13 includes a ceiling plate 27, a first standing portion 28 erected from one edge of the ceiling plate 27 in the arrow Z direction, and the ceiling plate. 27, and a second standing portion 29 standing from the other edge, and is formed in a U-shape. A second hinge 14 (hinge in the claims) is continuously provided at an end of the first standing portion 28 away from the ceiling plate 27.

  As shown in FIG. 5 (A), the second standing portion 29 has a locking claw 30 that locks with the locking receiving portion 19 of the holding portion main body 12 and a gap between the pair of covers 9A and 9B. And a protective cover 17 that covers the opening of the routing portion 9. The locking claw 30 is provided so as to protrude from the distal end portion of the second standing portion 29 toward the first standing portion 28. The locking claw 30 is provided at a position farther from the ceiling plate 27 than an end portion of the first standing portion 28 away from the ceiling plate 27.

  As shown in FIG. 5A, the protective cover 17 extends along the direction away from the second hinge 14 in the direction of arrow Z, continuously to the end of the second standing portion 29 on the ceiling plate 27 side. The cover main body 17A formed in this manner, and an overlapping portion 17B that protrudes from the edge of the cover main body 17A and overlaps the outer surface of the first side wall 92A of the routing portion 9 are provided. The cover body 17A is formed so that its longitudinal dimension (arrow Y direction) is slightly smaller than the gap between adjacent covers 9A and 9B, and its width dimension (arrow Z direction) is that of the covers 9A and 9B. It is formed approximately equal to the width dimension.

  As shown in FIGS. 5 (A) and 5 (B), the second hinge 14 is formed thin to facilitate bending, and one end of the second hinge 14 is provided continuously to the holding portion main body 12. The end is provided continuously to the first standing portion 28 of the cover portion 13. The second hinge 14 is connected so that the cover 13 and the protective cover 17 can be rotated by 180 degrees with the arrow Y direction as the rotation center axis, and the cover 13 covers the holding body 12 and is protected. The cover 17 is provided in the gap between the pair of covers 9A and 9B to cover the opening of the routing portion 9, the holding portion main body 12 is exposed, and the gap between the pair of covers 9A and 9B and the routing portion. 9 is displaced to the exposed position where the opening is exposed. As shown in FIGS. 3 and 4, the cover 13 and the protective cover 17 are positioned at the exposed position when the case 6 is molded by resin integral molding (that is, immediately after molding).

  Next, an assembly procedure of the power supply apparatus 10 having the above configuration will be described. First, the bus bar 3, voltage detection terminal 4, power supply terminal 5, case 6 and the like are manufactured separately. Then, each bus bar 3 is fitted into each bus bar accommodating portion 7 of the case 6, and the voltage detection terminal 4 is overlaid on the bus bar 3. The pair of through holes provided in the bus bar housing portion 7 and the pair of through holes 3a provided in the bus bar 3 overlap, and one of the pair of through holes 3a of the bus bar housing portion 7 and the bus bar 3 is for voltage detection. The through holes 4a provided in the terminals 4 overlap. And each voltage detection line 40 is routed in the routing part 9 and the communication part 18, and this voltage detection line 40 and the voltage detection terminal 4 are electrically connected. Then, the pair of covers 9 </ b> A and 9 </ b> B is rotated 180 degrees so as to cover the opening of the routing portion 9 and positioned at the closed position, and the first lock receiving portion 96 is locked by the first lock portion 95.

  The voltage detection terminal 4 is fitted into the terminal accommodating portion 8, and the power supply terminal 5 is overlaid on the voltage detection terminal 4. The through hole provided in the terminal accommodating portion 8 and the through hole 4 a of the voltage detection terminal 4 overlap, and the through hole 5 a provided in the power supply terminal 5 overlaps. Then, the voltage detection line 40 is routed in the routing unit 9, and the voltage detection line 40 and the voltage detection terminal 4 are electrically connected.

  The power supply line 50 is accommodated in the holding part main body 12 of the electric wire holding part 11 and wired in the arrow Y direction, and the power supply line 50 and the power supply terminal 5 are electrically connected. Then, the cover portion 13 and the protective cover 17 are rotated from the exposed position, and the locking claw 30 is brought into contact with the guide portion 26 of the main body portion 24. Further, the locking claw 30 is pressed against the guide portion 26, the guide portion 26 is elastically deformed to the side away from the routing portion 9 in the arrow Z direction, and the locking claw 30 enters the claw receiving portion 25. The guide portion 26 is elastically restored, and the locking claw 30 is locked to the claw receiving portion 25. Thus, the cover portion 13 and the protective cover 17 are fixed (maintained) while being positioned at the cover position, and the assembly of the bus bar module 1 is completed.

  The pair of bus bar modules 1 assembled in the above-described procedure are stacked on both side surfaces of the battery assembly 2, and the through hole 7a of the case 6, the through hole 3a of the bus bar 3, and the through hole 4a of the voltage detection terminal 4 are inserted. The nut 2A is screwed to the positive electrode 22 and the negative electrode 23, and the electrode of the battery 20 and the power supply line 50 and the electrode of the battery 20 and the voltage detection line 40 are electrically connected to assemble the power supply device 10. Is completed.

  According to such a bus bar module 1 and the power supply device 10, the case 6 is provided along the arrangement direction Y, and a plurality of housing portions 7 that house the bus bars 3 and the voltage detection terminals 4. A routing portion 9 provided in parallel with the plurality of accommodating portions 7 and for routing the voltage detection line 40 (first electric wire) connected to the voltage detection terminal 4 along the arrangement direction Y; Among the plurality of covers 9A and 9B that cover a predetermined range of the opening of the portion 9 and the plurality of covers 9A and 9B, a plurality of covers 9A and 9B are provided in a gap between a pair of adjacent covers 9A and 9B, and a plurality of covers An electric wire holding portion 11 that is provided in parallel with the housing portion 7 and holds the power supply line 50 (second electric wire) connected to the power supply terminal 5, and a protection that is provided in the gap and covers the opening of the routing portion 9. A protective cover 17, the electric wire holding part 11. Since the protective cover 17 covers the opening of the routing portion 9 and closes the gap between the pair of covers 9A and 9B while forming the case 6 by resin integral molding, since the case 6 is formed continuously, the voltage detection line 40 Damage and short circuit can be prevented. That is, the voltage detection line 40 routed in the routing unit 9 can be appropriately protected.

  In the above-described embodiment, the locking claw 30 is provided in the cover portion, and the locking receiving portion 19 that is locked to the locking claw 30 is provided in the holding portion main body 12. The latch receiving part 19 provided in the protective cover 17 and latched by the latching claw 30 may be provided in the routing part 9.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Bus bar module 10 Power supply device 2 Battery assembly 3 Bus bar 4 Voltage detection terminal 5 Power supply terminal 6 Case 7 Bus bar accommodating part (accommodating part)
9 Routing parts 9A, 9B A pair of covers 11 Electric wire holding part 17 Protective cover

Claims (4)

A plurality of bus bars connecting the plurality of batteries in series by connecting the electrodes of adjacent batteries among the plurality of batteries arranged so that each electrode is arranged in a straight line;
A voltage detection terminal connected to each bus bar;
A power supply terminal connected to a load and connected to an electrode of a battery located at an end of the plurality of batteries;
A bus bar module comprising a case for housing the plurality of bus bars, the plurality of voltage detection terminals, and the power supply terminals,
The case is
A plurality of accommodating portions that are provided along the arrangement direction and accommodate the bus bars and the voltage detection terminals;
A wiring portion that is provided side by side in the plurality of housing portions, and that routes the first electric wires connected to the voltage detection terminals along the arrangement direction;
A plurality of covers covering a predetermined range of the openings of the routing portion;
Among the plurality of covers, provided in a gap between a pair of covers adjacent to each other at an interval, an electric wire holding unit for holding a second electric wire connected to the power terminal,
A protective cover provided in the gap and covering the opening of the routing portion,
The bus bar module, wherein the protective cover is provided continuously to the electric wire holding part. The electric wire holding part is provided continuously with the routing part and holds a second electric wire, a covering part covering the second electric wire held by the holding part main body, and the holding part main body A hinge that pivotably connects the cover to the cover,
2. The bus bar module according to claim 1, wherein the protective cover is formed to extend continuously from the cover portion in a direction away from the hinge. The covering portion is provided with a locking portion,
The holding part main body is provided with a latch receiving part for latching to the latch part,
The cover portion and the protective cover are rotated by the hinge, whereby the locking portion is locked to the locking receiving portion, and the cover portion is held by the holding portion main body. The bus bar module according to claim 2, wherein the bus bar module is positioned at a position covering the electric wire, and a protective cover is positioned at a position covering the opening of the routing portion. A battery assembly composed of a plurality of batteries in which positive and negative electrodes are alternately stacked in opposite directions;
A power supply device comprising: the bus bar module according to any one of claims 1 to 3.

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