JP2017111915A - Wiring module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve producibility of a wiring module.SOLUTION: A wiring module 13 attached to a power storage element group 10 including a plurality of power storage elements 11 having an electrode terminal 12 further includes a bus bar 20 for connection with the electrode terminal 12, a wire 25 for connection with the bus bar 20, and an insulation protector 30 for housing the bus bar 20 and wire 25. The insulation protector 30 has a housing part 32 for housing the bus bar 20, a wire housing part 74 for housing the wire 25, and an interconnection part 36 extending from the housing part 32 toward the wire housing part 74 and interconnecting them. The wire housing part 74 is formed to extend in a direction crossing the extension direction of the interconnection part 36, and a retreat part 43 for avoiding interference with the wire 25 is opened in the wire housing part 74 at a part crossing the extension direction of the interconnection part 36.SELECTED DRAWING: Figure 4

Description

  The technique described in this specification relates to a wiring module.

  Conventionally, a wiring module described in JP 2012-199007 A is known. This wiring module is attached to a power storage element group including a plurality of power storage elements.

  The wiring module includes a voltage detection terminal electrically connected to the electrode terminal of the storage element, an electric wire connected to the voltage detection terminal, and an insulation protector that accommodates the voltage detection terminal and the electric wire. The insulating protector is formed with a housing portion for housing the voltage detection terminal and a wire housing groove for housing the electric wire.

JP 2012-199007 A

  However, according to said technique, the electric wire accommodation groove | channel is extended and formed in the direction orthogonal to the barrel part of a voltage detection terminal. For this reason, when accommodating the voltage detection terminal and the electric wire in the insulation protector, the voltage detection terminal is accommodated in the accommodating portion while the electric wire connected to the voltage detection terminal is bent, and the electric wire is accommodated in the electric wire accommodation groove. It is necessary to do work to do. For this reason, the force for bending the electric wire is applied to the barrel portion of the voltage detection terminal, and the barrel portion or the voltage detection terminal may be deformed. It is not preferable to perform the assembly operation of the voltage detection terminal and the electric wire while taking care not to deform the voltage detection terminal because the manufacturing efficiency of the wiring module is lowered.

  The technique described in the present specification has been completed based on the above-described circumstances, and aims to improve the manufacturing efficiency of the wiring module.

  The technology described in the present specification is a wiring module attached to a power storage element group including a plurality of power storage elements having electrode terminals, the connection member connected to the electrode terminals, and the connection member connected to the connection members. And an insulating protector that accommodates the connecting member and the electric wire, and the insulating protector includes an accommodating portion that accommodates the connecting member, an electric wire accommodating portion that accommodates the electric wire, and the accommodating portion. A communication portion that extends toward the electric wire housing portion and communicates the housing portion and the electric wire housing portion, and the electric wire housing portion is formed to extend in a direction intersecting with an extending direction of the communication portion. And the retraction part which avoids interference with the said electric wire is opened in the part which cross | intersects the direction where the said communication part is extended in the said electric wire accommodating part.

  According to said structure, the electric wire extended from the communication part is extended and arrange | positioned in the direction where a communication part is extended. Since the retracting portion is opened at a portion that intersects the direction in which the communication portion extends in the wire housing portion, it is possible to prevent the wire from interfering with the wire housing portion. For this reason, in the operation | work which accommodates a connection member in an accommodating part, and accommodates an electric wire in an electric wire accommodating part, in order to avoid interference with an electric wire and an electric wire accommodating part, it is not necessary to bend the electric wire extended from a communicating part. As a result, it is not necessary to bend the electric wire while paying attention so that no force is applied to the connecting member, so that the manufacturing efficiency of the wiring module can be improved.

  The following aspects are preferred as embodiments of the technology disclosed in this specification.

  It is preferable that the insulation protector has an electric wire cover that covers the electric wire housing portion, and the retracting portion is closed by the electric wire cover.

  According to said structure, since a retracting part can be block | closed by attaching a cover, it is suppressed that a foreign material penetrate | invades in an electric wire accommodating part.

  The electric wire cover is integrally formed with the insulation protector by a hinge, the connecting member has an electric wire connecting portion connected to an end portion of the electric wire, and the hinge is accommodated by the connecting member. In the state of being accommodated in the part, it is preferable that the assembling direction in which the connecting member is assembled to the accommodating part is arranged at a position ahead of the electric wire connecting part in the assembling direction.

  According to said structure, when accommodating a connection member in an accommodating part, it is suppressed reliably that the electric wire connected to the connection member interferes with a cover.

  The hinge is bent and deformed in a state where the electric wire cover covers the electric wire accommodating portion, and the hinge is deformed in the state where the electric wire cover covers the electric wire accommodating portion. It is preferable that a pressing portion that suppresses the movement of the wire cover in a direction in which the wire is relaxed is provided.

  According to said structure, since deformation | transformation of a hinge is suppressed, it is suppressed that a clearance gap is formed between an electric wire cover and an electric wire accommodating part. Thereby, it can suppress that a foreign material penetrate | invades in an electric wire accommodating part.

  The insulation protector includes a plurality of coupled insulation units, and each of the plurality of insulation units includes the housing portion, the communication portion, the wire housing portion, the wire cover, and the hinge. Each of the plurality of insulating units has an overlapping portion that overlaps an edge of an electric wire cover formed in an adjacent insulating unit, and an overlapped portion in which the overlapping portions are overlapped. Is preferred.

  According to said structure, when the overlap part and the overlapped part overlap, the clearance gap between adjacent electric wire covers becomes a bent shape. Thereby, it can suppress that a foreign material penetrate | invades from the clearance gap between adjacent electric wire covers.

  Each of the plurality of insulating units preferably has the overlapping portion on one side and the overlapped portion on the other side in the direction in which the wire housing portion extends.

  According to said structure, when operation which covers an electric wire accommodating part with the electric wire cover of the insulating unit located in the edge part of one side about the direction where an electric wire accommodating part extends is provided in the edge part of the other side of this insulating unit. The overlapped portion thus pushed pushes up the overlapping portion of the wire covers of the adjacent insulation units, so that the wire cover of the adjacent insulation unit also covers the wire housing portion. Furthermore, the same effect can be obtained for the electric wire cover of the insulating unit located next to the insulating unit. As a result, according to the above configuration, with respect to the plurality of electric wire covers formed on the plurality of insulating units, the electric wire housing portion can be covered with the insulating covers of all the insulating units by one operation on one insulating unit. . Thereby, the manufacturing efficiency of a wiring module can be improved.

  According to the technique described in this specification, the manufacturing efficiency of a wiring module can be improved.

The top view which shows the wiring module which concerns on Embodiment 1. Top view showing insulation protector The perspective view which shows the process of attaching a bus bar and an electric wire to an insulation protector. The perspective view which shows the state by which the bus bar and the electric wire were attached to the insulation protector The perspective view which shows the state before closing an electric wire cover Sectional drawing which shows the state before closing an electric wire cover The perspective view which shows the process in the middle of closing an electric wire cover Sectional drawing which shows the process in the middle of closing an electric wire cover The perspective view which shows the state by which the electric wire cover was closed Side view showing the state where the wire cover is closed XI-XI sectional view taken on the line in FIG. XII-XII line sectional view in FIG. XIII-XIII line sectional view in FIG. The perspective view which shows the process of attaching a bus-bar cover A plan view showing a state where the bus bar cover is attached. XVI-XVI line sectional view in FIG. Side view showing the busbar cover attached XVIII-XVIII line sectional view in FIG. Sectional drawing which shows the state by which the bus-bar cover was attached Sectional drawing which shows the state by which the bus-bar cover was attached

<Embodiment 1>
A first embodiment of the technology described in this specification will be described with reference to FIGS. 1 to 20. The wiring module 13 according to the present embodiment is mounted on the upper surface of a power storage element group 10 in which a plurality of power storage elements 11 having positive and negative electrode terminals 12 are arranged, and the power storage modules 11 are electrically connected in series. 14 is applied to construct 14. In the following description, the X direction is set to the right, the Y direction is set to the front, and the Z direction is set to the upper side. Moreover, about several identical members, a code | symbol may be attached | subjected to one member and another code | symbol may be abbreviate | omitted.

  As shown in FIG. 1, the electrode terminal 12 has a bolt shape and is provided so as to rise from the upper surface of the power storage element 11. The power storage element 11 according to this embodiment is a secondary battery. The plurality of power storage elements 11 are arranged so that the polarities of the adjacent electrode terminals 12 are different.

(Wiring module 13)
The wiring module 13 includes a plurality of bus bars 20 (an example of connection members) that connect the electrode terminals 12 of the adjacent power storage elements 11, electric wires 25 that are connected to the bus bars 20 and drawn, and the bus bars 20 and the electric wires 25. And an insulating protector 30 made of an insulating synthetic resin.

(Bus bar 20)
The bus bar 20 is formed by pressing a metal plate having excellent conductivity. As a metal constituting the bus bar 20, any metal such as copper, copper alloy, aluminum, aluminum alloy, or the like can be appropriately selected as necessary. A metal plating layer may be formed on the surface of the bus bar 20. As the metal constituting the plating layer, any metal such as tin or nickel can be appropriately selected as necessary.

  The bus bar 20 is formed with through holes 21 made of a pair of round holes at a predetermined interval. The electrode terminal 12 of the power storage element 11 is inserted into the through hole 21.

  An electric wire connecting portion 22 protrudes from the bus bar 20 at a central length position on one long side of the bus bar 20. The wire connection part 22 includes a wire barrel 23 and an insulation barrel 24. The direction in which the wire connecting portion 22 protrudes is orthogonal to the direction in which the pair of through holes 21 are arranged.

  The electric wire 25 is a covered electric wire formed by covering the outer periphery of a core wire (not shown) with an insulating coating 27. The wire barrel 23 of the electric wire connecting portion 22 is crimped so as to be wound around the outer periphery of the core wire exposed from the end of the electric wire 25. Thereby, the bus bar 20 and the electric wire 25 are electrically connected. Further, the insulation barrel 24 of the wire connection portion 22 is crimped so as to be wound around the outer periphery of the insulating coating 27.

(Insulation protector 30)
As shown in FIG. 2, the insulation protector 30 is configured by connecting a plurality of insulation units 31. In the present embodiment, three insulating units 31 will be described as an example.

  The insulating unit 31 is formed such that a housing portion 32 in which the bus bar 20 is housed is opened upward. The accommodating portion 32 is generally formed in a rectangular tube shape, and insulates the bus bar 20 accommodated in the accommodating portion 32 from the outside. The accommodating portion 32 has a peripheral wall 33 provided around the bus bar 20. One side surface of the peripheral wall 33 is opened in the direction in which the insulating units 31 are arranged, and surrounds the bus bar 20 in the other three directions. In the present embodiment, the right side surface is opened. By arranging the plurality of insulating units 31, the peripheral wall 33 of the adjacent insulating unit 31 is fitted into the opened portion of the peripheral wall 33 of one insulating unit 31. As a result, the entire circumference of the bus bar 20 is insulated by the peripheral wall 33.

  A recess 28 is formed on the side edge of the bus bar 20. On the other hand, the peripheral wall 33 of the accommodating portion 32 is formed with a convex portion 34 that protrudes toward the bus bar 20 at a portion corresponding to the concave portion 28. In a state where the bus bar 20 is accommodated in the accommodating portion 32, the convex portion 34 enters the concave portion 28. The concave portion 28 has a clearance in the direction in which the power storage elements 11 are arranged (left and right direction) and can accommodate the convex portion 34. Thereby, the bus bar 20 and each insulation unit 31 are relatively movable in the left-right direction.

  An elastic locking piece 40 that protrudes inward of the housing portion 32 is formed on the peripheral wall 33 of the housing portion 32. The elastic locking piece 40 is locked to the upper surface of the bus bar 20 to prevent the bus bar 20 from coming off upward.

  At a position in front of the accommodating portion 32, an electric wire accommodating portion 74 that accommodates the electric wires 25 is provided. The accommodating part 32 and the electric wire accommodating part 74 are connected by the communication part 36 extended and formed along the front-back direction (the direction which goes to the electric wire accommodating part 74 from the accommodating part 32). The communication part 36 is formed in a groove shape. In this communication part 36, the electric wire connection part 22 of the bus-bar 20 and the edge part of the electric wire 25 connected to this electric wire connection part 22 are distribute | arranged.

  The electric wire accommodating part 74 is formed extending along the left-right direction. In other words, it extends in a direction intersecting with the direction in which the communication portion 36 extends. In the present embodiment, the direction in which the communication portion 36 extends and the direction in which the wire housing portion 74 extends are substantially orthogonal.

  The electric wire housing portion 74 is formed by extending a bottom wall 76 on which the electric wire 25 is placed in the left-right direction. By connecting the plurality of insulating units 31 in the left-right direction, the electric wire accommodating portion 74 provided in each insulating unit 31 is also connected in the left-right direction.

  A plurality of fence-like walls 42 are formed on the front end edge of the bottom wall 76 so as to protrude upward at intervals in the left-right direction. A fence-like wall 42 is not formed in front of the communication part 36 (direction in which the communication part 36 extends). Thereby, the electric wire 25 led out from the communicating portion 36 does not interfere with the members constituting the electric wire accommodating portion 74 in front of the communicating portion 36. As described above, an opening formed between the plurality of fence-like walls 42 and positioned in front of the communication portion 36 is a retracting portion 43 for avoiding interference with the electric wire 25.

(Bus bar cover 100)
In a state where the bus bar 20 is housed in the housing portion 32, the bus bar 20 is covered from above by assembling the bus bar cover 100 to the insulation protector 30. Thereby, it is suppressed that the foreign material of the bus bar 20 contacts.

  The bus bar cover 100 is made of an insulating synthetic resin and has an elongated shape in the left-right direction.

  The shape of the bus bar cover 100 will be described in detail. As shown in FIG. 19, the cross-sectional shape of the bus bar cover 100 is such that the locked edges 101 are formed so as to rise over the entire length at the front and rear side edges of the surface of the bus bar cover 100. The bus bar cover 100 is integrated with the insulating protector 30 by locking the locked edge 101 from above by a locking piece 80 formed to protrude upward from the upper end edge of the peripheral wall 33 of the insulating unit 31. Assembled.

  Further, a lock portion 113 extending downward is formed on the left end edge of the bus bar cover 100. The lock portion 113 is integrally assembled to the insulation protector 30 by elastically locking with the locked portion 112 provided at the left end edge of the insulation protector 30.

(Electric wire cover 60)
The insulating unit 31 is provided with a wire cover 60 that covers the wire housing portion 74. The electric wire cover 60 is a front end edge of the bottom wall 76 of the electric wire accommodating portion 74 and is formed integrally with the insulating unit 31 via a hinge 63 at a position in front of the fence-like wall 42.

  The hinge 63 is provided at a position below the electric wire connecting portion 22 of the bus bar 20 (in front of the assembling direction for assembling the bus bar 20 to the accommodating portion 32) in a state where the bus bar 20 is accommodated in the accommodating portion 32.

  The electric wire cover 60 has a substantially L-shaped cross section. The electric wire cover 60 includes a front cover portion 61 that covers the front surface side of the fence-like wall 42, and an upper surface cover portion 62 that covers the electric wire housing portion 74 from above at the tip of the front cover portion 61. The front cover part 61 and the upper surface cover part 62 are formed at substantially right angles.

  On the left side and the right side of the hinge 63, a pressing portion 78 protruding upward from the front end edge of the bottom wall 76 is formed. As shown in FIG. 12, the pressing portion 78 bends and deforms the hinge 63 to rotate the electric wire cover 60, so that the electric wire cover 60 covers the electric wire housing portion 74, and thereby the front cover portion of the electric wire cover 60. It contacts with 61 from the front. Accordingly, the electric wire cover 60 is prevented from moving in a direction in which the bending deformation of the hinge 63 is relaxed.

  Since the hinge 63 is made of a synthetic resin, it can be elastically deformed. When the hinge 63 is bent and deformed, a resilient force is generated in the hinge 63. Because the elastic force causes the hinge 63 to return and deform, the electric wire cover 60 tends to move in a direction in which the deformation of the hinge 63 is eased.

  At the right end edge of the electric wire cover 60 of one insulating unit 31, an overlapping portion 67 that overlaps the left end edge of the electric wire cover 60 of another insulating unit located right next to the one insulating unit is a front cover portion of the electric wire cover 60. 61 and the upper surface cover 62 are provided with a step. Of the electric wire covers 60 of the other insulating units 31, a portion where the overlapping portion 67 of the electric wire cover 60 of one insulating unit 31 is overlapped is an overlapped portion 68.

  An overlapping portion 67 is formed at the right end edge of the electric wire cover 60 of each insulating unit 31, and an overlapped portion 68 is formed at the left end edge.

  Then, the structure which locks the electric wire cover 60 in a closed position is demonstrated. A lock piece 65 is formed on the back surface of the upper surface cover portion 62 of the electric wire cover 60 at a position near the tip edge. The locking piece 65 has a claw 66 formed at the tip.

  On the other hand, the above-described insulating unit 31 is formed with a lock portion 45 that engages with the lock piece 65. When the wire cover 60 is rotated toward the closed position and reaches the final stage of the rotation, the distal end portion of the lock piece 65 is elastically locked to the lock portion 45 from below. As a result, the electric wire cover 60 is locked in the closed position.

  As shown in FIG. 11, a tall rib 75A provided at a front position in the front-rear direction and a rear side in the front-rear direction are provided on the back surface (upper surface when closed) of the upper cover portion 62 of the wire cover 60. A short rib 75 </ b> B provided on the wire cover 60 is formed so as to protrude substantially over the entire length of the electric wire cover 60 in the left-right direction.

  Then, an example of the assembly procedure of the electrical storage module 14 using the wiring module 13 of this embodiment is demonstrated. In addition, the assembly procedure of the electrical storage module 14 is not limited to the following structure.

  An insulating protector 30 is formed by connecting a plurality of insulating units 31 side by side. The wire cover 60 is in the open position (see FIG. 3).

  On the other hand, the terminal of the electric wire 25 is crimped and connected to the electric wire connecting portion 22 provided in each bus bar 20. In other words, the electric wire 25 is pulled out from the one side edge of the bus bar 20 through the electric wire connecting portion 22 (see FIGS. 3 and 6).

  The bus bar 20 as described above is individually accommodated in each accommodating portion 32. The bus bar 20 is pushed from above while elastically displacing the elastic locking piece 40 into the accommodating portion 32 (arrow A), and the electric wire connecting portion 22 is inserted into the communicating portion 36 together.

  As shown in FIG. 20, the bus bar 20 is retained and held in the accommodating portion 32 by the elastic locking piece 40 being locked to the upper surface of the bus bar 20. In addition, the electric wire connecting portion 22 is placed on the bottom surface of the communication portion 36, and the electric wires 25 are routed in a state of extending toward the front (see FIG. 4).

  The electric wires 25 that are routed forward from the communication portion 36 are arranged in a retracting portion 43 provided between the fence-like walls 42.

  Then, each electric wire 25 is bent rightward along the electric wire accommodating part 74, and arrange | positions in the electric wire accommodating part 74 (refer FIG. 5).

  As described above, when the bus bar 20 is accommodated in the accommodating portion 32 and the electric wire 25 drawn from each bus bar 20 is accommodated in the electric wire accommodating portion 74, the electric wire cover 60 is closed to close the electric wire accommodating portion 74.

  The electric wire cover 60 is rotated from the open position shown in FIGS. 5 and 6 to the position shown in FIGS. 7 and 8 around the hinge 63, and further rotated toward the closed position shown in FIG. Here, the electric wire cover 60 at the front end is rotated while letting the front locking piece 80 pass through the escape window 77 and escape as shown in FIG.

  When the electric wire cover 60 is rotated to the closed position where the upper surface cover portion 62 contacts the upper surface of the insulation protector 30, the lock piece 65 is held in a state of being locked to the lock portion 45 as shown in FIG. The electric wire cover 60 is locked in the closed position.

  While the electric wire covers 60 are rotated, the adjacent electric wire covers 60 are overlapped with the overlapping portion 67 and the overlapped portion 68 (see FIGS. 7 and 8). For this reason, by rotating with the electric wire cover 60 located on the right end side, the overlapped portion 68 pushes up the overlapping portion 67, so that the electric wire covers 60 of the adjacent insulating units 31 rotate in a lump. It is like that.

  When the electric wire cover 60 is closed, the front cover portion 61 covers the outer surface side of the fence-like wall 42 constituting the electric wire accommodating portion 74 and covers the upper portion of the communication portion 36. Further, the retracting portion 43 formed between the fence-like walls 42 is closed from the outer surface side by the front cover portion 61 of the electric wire cover 60.

  The wiring module 13 assembled in this way is placed along the side edge of the electricity storage element group 10 as shown in FIG. Accordingly, the electrode terminal 12 erected on the power storage element 11 penetrates the through hole 21 of the bus bar 20 from below and protrudes to the upper surface side.

  Subsequently, a nut (not shown) is screwed and tightened to the electrode terminal 12 penetrated through the through hole 21 of the bus bar 20, so that the electrode terminals 12 of the adjacent power storage elements 11 are electrically connected to each other via the bus bar 20. It will be connected to.

  When the nut fastening operation is completed, the bus bar cover 100 is attached to cover the upper surface opening of the housing portion 32 in the state where the bus bar 20 is housed.

  As shown in FIG. 14, as shown in FIG. 14, the bus bar cover 100 is slightly tilted to the left, and the lock portion 113 and the locked portion 112 are engaged, and then the bus bar cover 100 is horizontally changed in posture and insulated. Push toward the upper surface of the protector 30. When the pushing of the bus bar cover 100 is stopped, as shown in FIG. 16, the locked portion 112 is restored and displaced and is elastically locked to the lock portion 113.

  As a result, the bus bar cover 100 covers the entire area of the upper surface opening of the housing portion 32 and holds the upper surface cover portion 62 of the electric wire cover 60 from above (see FIGS. 15 and 17). Thus, the assembly of the power storage module 14 using the wiring module 13 of the present embodiment is completed.

(Operation and effect of the embodiment)
Then, the effect | action and effect of this embodiment are demonstrated. The wiring module 13 according to the present embodiment is a wiring module 13 attached to a power storage element group 10 including a plurality of power storage elements 11 having electrode terminals 12, and includes a bus bar 20 connected to the electrode terminals 12, and a bus bar 20. And an insulating protector 30 that accommodates the bus bar 20 and the electric wire 25. The insulating protector 30 includes an accommodating portion 32 that accommodates the bus bar 20, an electric wire accommodating portion 74 that accommodates the electric wire 25, and A communication portion 36 that extends from the housing portion 32 toward the wire housing portion 74 and communicates the housing portion 32 and the wire housing portion 74, and the wire housing portion 74 intersects the direction in which the communication portion 36 extends. In the electric wire housing portion 74, a retracting portion 43 that avoids interference with the electric wire 25 is opened at a portion that intersects the direction in which the communication portion 36 extends. To have.

  According to said structure, the electric wire 25 extended from the communication part 36 is extended and arrange | positioned in the direction where the communication part 36 is extended. Since the retracting portion 43 is opened at a portion that intersects with the direction in which the communication portion 36 extends in the electric wire accommodating portion 74, the electric wire 25 is prevented from interfering with the electric wire accommodating portion 74. For this reason, in the operation | work which accommodates the bus-bar 20 in the accommodating part 32 and accommodates the electric wire 25 in the electric wire accommodating part 74, in order to avoid interference with the electric wire 25 and the electric wire accommodating part 74, the electric wire 25 extended from the communication part 36 is bent. There is no need. As a result, it is not necessary to bend the electric wire 25 while taking care not to apply a force to the bus bar 20, so that the manufacturing efficiency of the wiring module 13 can be improved.

  According to the present embodiment, the insulating protector 30 is provided with the wire cover 60 that covers the wire housing portion 74, and the retracting portion 43 is closed by the wire cover 60.

  According to the above configuration, the retracting portion 43 can be closed by attaching the electric wire cover 60, so that foreign matter is prevented from entering the electric wire accommodating portion 74.

  Further, according to the present embodiment, the electric wire cover 60 is integrally formed with the insulating protector 30 by the hinge 63, and the bus bar 20 has the electric wire connecting portion connected to the end portion of the electric wire 25, and the hinge 63 is arranged at a position ahead of the electric wire 25 connecting portion in the assembling direction for assembling the bus bar 20 to the accommodating portion 32 in a state where the bus bar 20 is accommodated in the accommodating portion 32.

  According to said structure, when accommodating the bus bar 20 in the accommodating part 32, it is suppressed reliably that the electric wire 25 connected to the bus bar 20 interferes with the electric wire cover 60. FIG.

  Further, according to the present embodiment, the hinge 63 is bent and deformed in a state where the electric wire cover 60 covers the electric wire housing portion 74, and the electric wire cover 60 is attached to the insulating protector 30. In the covered state, a pressing portion 78 that suppresses the movement of the wire cover 60 in a direction in which the deformation of the hinge 63 is relaxed is provided.

  According to said structure, since deformation | transformation of the hinge 63 is suppressed, it is suppressed that a clearance gap is formed between the electric wire cover 60 and the electric wire accommodating part 74. FIG. Thereby, it can suppress that a foreign material penetrate | invades in the electric wire accommodating part 74. FIG.

  In addition, according to the present embodiment, the insulation protector 30 includes a plurality of coupled insulation units 31, and each of the plurality of insulation units 31 includes the accommodation part 32, the communication part 36, and the wire accommodation part 74. And an electric wire cover 60 and a hinge 63, and each of the plurality of insulating units 31 includes an overlapping portion 67 that is overlapped with an edge of the electric wire cover 60 formed in the adjacent insulating unit 31; It has the overlapped part 68 on which the overlapping part 67 is overlapped.

  According to said structure, when the overlap part 67 and the overlapped part 68 overlap, the clearance gap between adjacent electric wire covers 60 becomes a bent shape. Thereby, it can suppress that a foreign material penetrate | invades from the clearance gap between adjacent electric wire covers 60. FIG.

  Further, as shown in FIG. 18, the gap between the wire covers 60 in a state where the overlapping portion 67 and the overlapped portion 68 overlap each other is blocked by the rib 75B. Thereby, it is suppressed that a foreign material penetrates the inside of the accommodating portion 32 through the gap.

  Further, according to the present embodiment, each of the plurality of insulating units 31 has the overlapping portion 67 on one side and the overlapped portion 68 on the other side in the direction in which the wire accommodating portion 74 extends.

  According to said structure, if operation which covers the electric wire accommodating part 74 with the electric wire cover 60 of the insulating unit 31 located in the edge part of one side is performed about the direction where the electric wire accommodating part 74 extends, the other side of this insulating unit 31 will be carried out. The overlapped portion 68 provided at the end of the first side pushes up the overlapping portion 67 of the electric wire cover 60 of the adjacent insulating unit 31, so that the electric wire cover 60 of the adjacent insulating unit 31 also covers the electric wire housing portion 74. ing. Furthermore, the same effect can be obtained with respect to the electric wire cover 60 of the insulating unit 31 located adjacent thereto. As a result, according to the above configuration, with respect to the plurality of electric wire covers 60 formed on the plurality of insulating units 31, the electric wire accommodating portions 74 are insulated by the insulating covers of all the insulating units 31 by one operation on the single insulating unit 31. Can be covered. Thereby, the manufacturing efficiency of the wiring module 13 can be improved.

<Other embodiments>
The technology described in the present specification is not limited to the embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope of the technology described in the present specification.

  (1) Although the secondary battery is used as the power storage element 11 in the present embodiment, the present invention is not limited to this, and a capacitor may be used.

  (2) In the present embodiment, the electric wire cover 60 is formed integrally with the insulating protector 30 by the hinge 63. However, the present invention is not limited to this, and the electric wire cover 60 may be a separate component from the insulating protector 30. .

  (3) In the present embodiment, the insulating protector 30 is configured to connect a plurality of insulating units 31. However, the configuration is not limited to this, and the insulating protector 30 may be configured as a single component.

  (4) The pressing portion 78 may be omitted.

  (5) The insulating unit 31 may be configured without the overlapping portion 67 and the overlapped portion 68.

  (6) In the present embodiment, the connection member is configured to be the bus bar 20 that connects the electrode terminals 12 of the adjacent power storage elements 11, but is not limited thereto, and the electrodes of the adjacent power storage elements 11 are The connection member may be connected to one electrode terminal 12 by being connected by a bus bar different from the connection member.

  (7) In the present embodiment, the wire barrel 23 and the insulation barrel 24 provided on the bus bar 20 are crimped to the electric wire 25 to connect the electric wire 25 and the bus bar 20. Instead, the electric wire 25 and the bus bar 20 can be connected by a known method such as welding or soldering.

  (8) In the present embodiment, the electric wire 25 is a voltage detection line that detects the voltage of the storage element 11, but is not limited thereto, and may be another detection electric wire such as a current detection line.

10: Power storage element group 11: Power storage element 12: Electrode terminal 13: Wiring module 20: Bus bar (connection member)
25: Electric wire 30: Insulation protector 31: Insulation unit 32: Housing part 36: Communication part 43: Retraction part 60: Electric wire cover 63: Hinge 67: Overlapping part 68: Overlapping part 74: Electric wire housing part 78: Holding part

Claims (6)

A wiring module attached to a storage element group including a plurality of storage elements having electrode terminals,
A connecting member connected to the electrode terminal;
An electric wire connected to the connection member;
An insulation protector for accommodating the connection member and the electric wire,
The insulation protector includes a housing portion that houses the connection member, a wire housing portion that houses the electric wire, and extends from the housing portion toward the wire housing portion and communicates the housing portion and the wire housing portion. A communication part;
The wire accommodating portion is formed to extend in a direction intersecting with the extending direction of the communication portion,
The wiring module in which the retracting part which avoids interference with the said electric wire is opened in the part which cross | intersects the direction where the said communication part extends in the said electric wire accommodating part. The insulation protector has a wire cover that covers the wire housing portion,
The wiring module according to claim 1, wherein the retracting portion is blocked by the electric wire cover. The wire cover is integrally formed with a hinge with respect to the insulation protector,
The connecting member has an electric wire connecting portion connected to an end portion of the electric wire,
The hinge is arranged at a position ahead of the electric wire connecting portion with respect to the assembling direction in which the connecting member is assembled to the accommodating portion in a state where the connecting member is accommodated in the accommodating portion. The wiring module according to claim 2. In the state where the electric wire cover covers the electric wire housing part, the hinge is bent and deformed,
The insulation protector is provided with a pressing portion that suppresses movement of the wire cover in a direction in which deformation of the hinge is relaxed in a state where the wire cover covers the wire housing portion. 4. The wiring module according to 3. The insulation protector includes a plurality of coupled insulation units,
Each of the plurality of insulating units includes the accommodating portion, the communication portion, the electric wire accommodating portion, the electric wire cover, and the hinge.
Each of the plurality of insulating units has an overlapping portion that is overlapped with an edge of an electric wire cover formed in an adjacent insulating unit, and an overlapped portion in which the overlapping portion is overlapped. Wiring module as described in.   6. The wiring module according to claim 5, wherein each of the plurality of insulating units has the overlapping portion on one side and the overlapping portion on the other side in a direction in which the electric wire housing portion extends.

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