JP2015153554A - wiring module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring module enhanced in assembling performance.SOLUTION: A wiring module has connection members 21B, 21C for electrically connecting electrode terminals of a power storage element group, and an insulating protector for holding the connection members 21B, 21C. The insulating protector is constructed by connecting plural units 26, 27 having a connection member holding portions 28 for holding the connection members 21B, 21C. When the insulating protector is disposed on a terminal forming plane, the electrode terminals are overlapped with one another under the state that the connection members 21B, 21C are allowed to move in the arrangement direction of the power storage elements. One unit 26 is provided with a joint portion 46 for locking another unit 27, the other unit 27 is provided with a joint reception portion 47 locked to the joint portion 46, and a clearance is provided between the joint portion 46 and the joint reception portion 47.

Description

  The present invention relates to a wiring module.

  In power storage modules for electric vehicles and hybrid vehicles, a plurality of power storage elements having positive and negative electrode terminals are arranged side by side. In such a power storage module, a plurality of power storage elements are electrically connected by connecting a positive electrode terminal and a negative electrode terminal with a connecting member such as a bus bar.

  As what is used in order to electrically connect a some electrical storage element, the battery connection plate etc. of patent document 1 etc. are known, for example.

  In the battery connection plate described in Patent Document 1, a plurality of bus bar accommodating portions are provided, and after the bus bar is accommodated in each bus bar accommodating portion, the battery connecting plate is formed on the terminal forming surface on which the electrode terminals of the power storage elements are formed. Are arranged so as to connect each bus bar and the electrode terminal.

  A manufacturing tolerance is set for each power storage element that constitutes the power storage element group to which the battery connection plate is attached, and an assembly tolerance is set between adjacent power storage elements. For this reason, the pitch interval between adjacent electrode terminals is deviated within the range of manufacturing tolerances and assembly tolerances. When the pitch of the electrode terminals is shifted, the work of connecting the connecting member to the electrode terminals is hindered.

  Therefore, Patent Document 1 proposes a method of connecting a substrate portion provided with a bus bar housing portion by a hinge-like flexible portion as a pitch adjusting means.

Japanese Patent No. 3707595

  The battery connection plate described in Patent Document 1 is disposed on the terminal formation surface, and is aligned by inserting a bolt-shaped electrode terminal through the hole of the bus bar accommodated in the bus bar accommodating portion. During this alignment operation, the hinge-like flexible portion provided on the battery connection plate expands and contracts to adjust the pitch.

  Here, the storage element is aligned with the connecting member as compared with a bolt-shaped electrode terminal, such as a recessed electrode terminal having a screw portion formed therein or a plate-shaped electrode terminal. Some power storage devices have electrode terminals that are difficult to handle. When connecting such an energy storage device using the battery connection plate described in Patent Document 1, the electrode terminal and the connection member are connected while expanding and contracting the hinge-like flexible portion. A large force is required to expand and contract the flexible portion, and there is a concern that the connecting portion between the connection member and the electrode terminal may be disconnected due to the elastic return of the hinge-like flexible portion after performing the connection operation. It was.

  The present invention has been completed based on the above circumstances, and has improved the ease of assembly to a storage element group formed by connecting a plurality of storage elements having electrode terminals that are difficult to align with connection members. An object is to provide a wiring module.

  The present invention includes a connection member that electrically connects between electrode terminals of a power storage element group in which a plurality of power storage elements having positive and negative electrode terminals are arranged, and an insulation protector that is made of an insulating material and holds the connection member. The insulation protector is formed by connecting a plurality of units having a holding part for holding the connection member, and the insulation protector is connected to a terminal forming surface on which the electrode terminal of the power storage element is formed. When arranged, the connecting member overlaps the electrode terminal in a state in which movement in the direction in which the power storage elements are arranged is allowed, and one unit among the adjacent units is connected to the other unit. The other unit is formed with a locked portion that is locked to the locking portion of the one unit, and the locking portion and the locked portion Is a wiring module in which a clearance is provided between the.

  In the present invention, when the insulation protector is arranged on the terminal forming surface on which the electrode terminal of the power storage element is formed, the connection member overlaps the electrode terminal in a state where the connection member is allowed to move in the arrangement direction of the power storage elements. ing. Therefore, in the present invention, when the insulating protector is arranged in the storage element group, the connection member overlaps the electrode terminal in a state in which the movement in the arrangement direction of the storage element is allowed, so that the alignment between the electrode terminal and the connection member is performed. difficult. In other words, in the present invention, the power storage element has an electrode terminal that is difficult to align with the connection member.

  However, in the present invention, among adjacent units, a locking portion is formed in one unit, a locked portion is formed in the other unit, and a clearance is provided between the locking portion and the locked portion. Therefore, the shift of the pitch of the electrode terminal is adjusted by the clearance, and the connection work between the connection member and the electrode terminal can be performed smoothly.

  As a result, according to the present invention, it is possible to provide a wiring module that can be easily assembled into a power storage element group formed by connecting a plurality of power storage elements having electrode terminals that are difficult to align the connection members.

The present invention may have the following configuration.
The one unit may be provided with a plurality of the locking portions, while the other unit may be provided with a plurality of the locked portions.
With such a configuration, the pitch can be adjusted in the plurality of locking portions and locked portions.

The electrode terminal and the connection member may be joined by welding. With this configuration, the electrical connection between the electrode terminal and the connection member can be ensured.
The connecting member may be provided with a confirmation hole for confirming a welding state. With such a configuration, the welding state can be easily confirmed.

  According to the present invention, an object of the present invention is to provide a wiring module that is improved in assemblability to a power storage element group formed by connecting a plurality of power storage elements having electrode terminals that are difficult to align with a connection member.

The top view of the electrical storage module provided with the wiring module of Embodiment 1. Top view of the storage module with the lid open Sectional drawing in the AA line of FIG. Sectional drawing in the BB line of FIG. Sectional view taken along line CC in FIG. Side view of power storage module Plan view of storage element group Perspective view of connecting member Side view of connecting member Perspective view of the first unit Plan view of the first unit Left side view of the first unit Perspective view of the second unit Plan view of the second unit 2 is an enlarged view of the main part of FIG. 2 (connection structure of the first lid unit and the second lid unit). 2 is an enlarged view of the main part of FIG. 2 (connection structure of the first unit and the second unit).

<Embodiment 1>
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 14. FIG. 1 is a plan view of a power storage module M1 including the wiring module 20 according to the first embodiment.
Moreover, in the following description, about the some same member, a code | symbol may be attached | subjected to one member and a code | symbol may be abbreviate | omitted about another member. The vertical direction is based on FIG. 3, FIG. 5 and FIG.

  The power storage module M1 is used as a drive source for a vehicle such as an electric vehicle or a hybrid vehicle. The power storage module M1 includes a power storage element group 10 and a wiring module 20 attached to the power storage element group 10.

(Storage element group 10)
The power storage element group 10 includes twelve power storage elements 11 arranged as shown in FIG. A rectangular parallelepiped separator 15 made of an insulating material is disposed between the adjacent power storage elements 11 and 11. Each power storage element 11 constituting the power storage element group 10 includes a power storage element (not shown) therein.

  The power storage element 11 includes a flat rectangular parallelepiped main body portion 12 including a power storage element therein, and positive and negative electrode terminals 13A and 13B provided on the upper surface (terminal forming surface 12A) of the main body portion 12. .

  As shown in FIG. 7, each of the electrode terminals 13 </ b> A and 13 </ b> B has a flat plate shape and protrudes upward on the terminal formation surface 12 </ b> A of the power storage element 11. The plurality of power storage elements 11 are arranged such that adjacent electrode terminals 13A and 13B have opposite polarities.

  The wiring module 20 is attached to the power storage element group 10. That is, the plurality of power storage elements 11 constituting the power storage element group 10 are connected by the wiring module 20. As illustrated in FIG. 2, the wiring module 20 includes a plurality of connection members 21 and an insulation protector 25 that holds these connection members 21.

(Connection member 21)
The connection member 21 (21A, 21B) is made of a metal material such as copper, copper alloy, stainless steel (SUS), aluminum, or aluminum alloy that has been processed into a predetermined shape. In the present embodiment, the connection members 21A and 21B and the electrode terminals 13A and 13B are made of the same metal material.

  In the present embodiment, of the connection members 21A and 21B held by the connection member holding portion 28 (an example of the holding portion) shown on the lower side of FIG. 21B is an external connection member 21B provided with an external connection terminal to be connected to an external device. Other than these, 21B is a connection member 21A for electrically connecting adjacent electrode terminals 13A and 13B.

  As shown in FIGS. 8 and 9, each connecting member 21 protrudes outward from the terminal connecting portion 22 and is connected to the rectangular plate-like terminal connecting portion 22 connected to the electrode terminals 13 </ b> A and 13 </ b> B. And an electric wire connecting portion 23.

  The electric wire 16 connected to the connecting member 21 is an electric wire 16 in which a core wire 16B made of a metal such as copper, copper alloy, aluminum, or aluminum alloy is covered with a covering material 16A made of an insulating resin. The core wire 16B is exposed by peeling and removing the material 16A. The plurality of electric wires 16 are connected to an unillustrated ECU or the like via a connector 17C (see FIG. 2). The battery ECU is equipped with a microcomputer, an element, and the like, and has functions for detecting the voltage, current, temperature, and the like of each power storage element 11 and controlling charge / discharge control of each power storage element 11. It is of a well-known configuration.

  The terminal connecting portion 22 of the connecting member 21 is joined to the electrode terminals 13A and 13B by welding in a state of being superimposed on the electrode terminals 13A and 13B (see FIG. 5). The connection member 21 is provided with a circular welding confirmation hole 22A for confirming the welding state. As a welding method, a known method can be used.

  In addition, a pair of barrel portions 23 </ b> A that are crimped to the exposed core wires 16 </ b> B of the electric wires 16 are formed in the electric wire connection portions 23 of the connection members 21.

  The connection members 21A and 21B are arranged at positions overlapping the electrode terminals 13A and 13B of the power storage element 11 while being held by the insulation protector 25. The connection member 21 is arranged in the direction in which the power storage elements 11 are arranged (the horizontal direction in FIG. 2). ), The connecting member 21 is not positioned by being superimposed on the electrode terminals 13A and 13B.

(Insulation protector 25)
The insulation protector 25 is formed by processing a synthetic resin material having insulation into a predetermined shape. The insulation protector 25 is formed by connecting two units 26 and 27 as shown in FIG.
In the insulating protector 25, the first lid 41, the connection member holding portion 28, the electric wire holding portion 32, the member mounting portion 35, the electric wire holding portion 32, the connection member holding portion 28, three lid portions (in order from the upper side of FIG. A second lid 51, a third lid 53, and a fourth lid 58) are provided. First, the connection member holding portions 28 arranged in two rows will be described.

  As shown in FIG. 2, the connection member holding part 28 has connection member accommodating parts 29A and 29B for holding the connection members 21A and 21B, and a lead-out groove 31 from which the barrel part 23A of the connection members 21A and 21B is led out. .

  The connection member accommodating portions 29A and 29B include an enclosure wall 30A that surrounds the connection members 21A and 21B, and a bottom wall 30B on which the connection members 21A and 21B are placed. A retaining protrusion 30C that prevents the connecting member 21A from coming off is formed on the surrounding wall 30A. Further, the surrounding wall 30 </ b> A on the side of the electric wire holding part 32 is connected to a lead-out groove 31 that leads the barrel part 23 </ b> A of the connecting member 21 to the electric wire holding part 32.

  The connection member accommodating portion 29B at the end of the connection member holding portion 28 shown on the lower side in FIG. 2 is an external connection that accommodates an external connection member 21B for connecting the electrode terminals 13A and 13B to an external device. This is the member accommodating portion 29B.

  An electric wire holding part 32 for holding the electric wire 16 is provided inside the connection member holding part 28 continuously from the connection member holding part 28. The electric wire holding part 32 includes a bottom wall 32C on which the electric wire 16 is placed and a pair of side walls 32A and 32B standing on the bottom wall 32C. The electric wire holding part 32 includes a pair of side walls 32A and 32B that constitute the electric wire holding part 32. Of these, the inner side wall 32A is provided with a wire pressing piece 33 projecting toward the opposing side walls 32A and 32B. The electric wire pressing piece 33 prevents the electric wire 16 accommodated in the electric wire holding part 32 from jumping out. One end portion of the electric wire 16 held by the electric wire holding portion 32 is connected to the connecting member 21, but the other end portion is wired in the direction of the right end portion of the electric wire holding portion 32 shown on the upper side of FIG. 2 and connected to the connector 17C. Is done.

  A fixing portion 34 for fixing the wire harness 17 is provided at the right end portion of the electric wire holding portion 32 shown on the upper side of FIG. The wire harness 17 is formed by inserting a plurality of electric wires 16 collectively by a bundling member 17A through a protective member 17B. As shown in FIG. 4, the fixing portion 34 is provided with a positioning protrusion 34 </ b> A that bites into and positions the protective member 17 </ b> B.

  A first lid 41 that covers the connection member holding portion 28 is provided on the outside of the connection member holding portion 28 shown in the upper side of FIG. Further, a second lid portion 51, a third lid portion 53, and a fourth lid portion 58 are provided on the outside of the connection member holding portion 28 shown on the lower side of FIG. The first lid 41 has a stepped shape as shown in FIG. 6, and the third lid 53 can be bent via a third hinge 57. The second lid portion 51 and the fourth lid portion 58 respectively cover the external connection member 21B at the right end and the external connection member 21B at the left end.

  The first lid portion 41 and the third lid portion 53 are formed by connecting the two units 26 and 27 constituting the insulating protector 25. Here, when distinguishing the two units 26 and 27, the right unit shown in FIG. 2 is the first unit 26, and the left unit is the second unit 27.

The first unit 26 includes a first lid unit 42, a connection member holding portion 28, an electric wire holding portion 32, a member mounting portion 35, an electric wire holding portion 32, a connecting member holding portion 28, and a second lid in order from the top shown in FIG. Part 51 and a third lid unit 54.
The second unit 27 includes, in order from the top shown in FIG. 14, the second lid unit 48, the connecting member holding portion 28, the electric wire holding portion 32, the member mounting portion 35, the electric wire holding portion 32, the connecting member holding portion 28, and the fourth lid. A unit 56 and a fourth lid 58 are provided.

  The first lid portion 41 and the third lid portion 53 are formed by connecting the first unit 26 and the second unit 27. That is, the first lid portion 41 is formed by connecting the first lid unit 42 and the second lid unit 48, and the third lid portion 53 connects the third lid unit 54 and the fourth lid unit 56. Is formed. Details of the connecting structure of the two units 26 and 27 will be described later.

  Two lid locking pieces 43 are provided at approximately the center of the first lid unit 42 and the third lid unit 54, and a lid locking claw 43 </ b> A is provided at the end of the lid locking piece 43. One lid locking piece 43 is provided at approximately the center of each of the second lid unit 48 and the fourth lid unit 56, and a lid locking claw 43 </ b> A is provided at the end of the lid locking piece 43.

  Each lid latching claw 43A is latched by a latch receiving portion 36 provided at a corresponding position when the first lid portion 41 and the third lid portion 53 are closed. Specifically, the latch receiving portion 36 is provided between the connection member holding portion 28 and the wire holding portion 32.

  A rectangular notch 44 is provided at the edge of the first lid unit 42 and the edge of the second lid unit 48. An engagement protrusion 55 formed on the third lid unit 54 and an engagement protrusion 55A closer to the center formed on the fourth lid unit 56 are fitted in the notch 44, respectively.

  The engagement protrusion 55A formed on the third lid unit 54 and the engagement protrusion 55A formed on the fourth lid unit 56 correspond to the electric wire holding portion 32 and the member attachment portion 35 shown on the upper side in FIGS. Engages with an engagement hole 37A provided between the two. Further, the engagement protrusion 55B from the left end portion of the fourth lid unit 56 engages with the engagement hole 37B formed at the left end portion of the electric wire holding portion shown on the upper side in FIG. Thereby, the 3rd cover part 53 is latched. Note that the engaging protrusion 55B of the fourth lid unit 56 does not fit into the notch 44 and engages with the engaging hole 37B.

  The second lid portion 51 and the fourth lid portion 58 are each provided with an engaging piece 52 that protrudes outward, and the engaging piece 52 is engaged with an engaging protrusion 29C provided in the external connection member accommodating portion 29A. An engaging hole 52A is formed (see FIG. 10 for the second lid 51 and FIG. 13 for the fourth lid 58).

(Linked structure)
Now, as shown in FIG. 11, four connecting portions (a connecting plate portion 46 and a connecting piece 38) project from the end portion (the left end portion in the drawing) of the first unit 26 on the second unit 27 side. . Specifically, the left end portion of the first lid unit 42 and the left end portion of the third lid unit 54 are each provided with a connecting plate portion 46 (an example of a locking portion) having a rectangular plate shape. A rectangular connection hole 46 </ b> A is formed in 46. Further, as shown in FIG. 11, a pair of connecting pieces 38, 38 (locking portions) having connecting claws 38A formed at the end portions are provided between the connecting member holding portion 28 and the electric wire holding portion 32 of the first unit 26. 1) is formed to protrude.

  On the other hand, at the end of the second unit 27 on the first unit 26 side (the right end in the figure), as shown in FIG. 14, four connection receiving portions for receiving the connection plate portion 46 and the connection piece 38 of the first unit 26. 47 and 39 are provided. Specifically, a first connection receiving portion 47 (an example of a locked portion) having a gate shape and a connection claw 47A is provided at the right end portion of the second lid unit 48 and the right end portion of the fourth lid unit 56, respectively. It has been. Further, as shown in FIG. 14, a second connection receiving portion 39 (covered) for receiving and locking a pair of connection pieces 38 is provided between the connection member holding portion 28 and the wire holding portion 32 of the second unit 27. An example of a locking part) is formed.

  The connection hole 46A of the first lid unit 42 is received in the first connection receiving portion 47 of the second lid unit 48, and the connection hole 46A of the third lid unit 54 is received in the first connection receiving portion 47 of the fourth lid unit 56. Thus, the two sets of connecting pieces 38 of the first unit 26 are received by the second connecting receiving portion 39 of the second unit 27.

  Here, between the connection hole 46A of the first lid unit 42 and the first connection receiver 47 of the second lid unit 48, the connection hole 46A of the third lid unit 54 and the first connection receiver of the fourth lid unit 56. 47, the clearance CL is provided between the connection piece 38 of the first unit 26 and the second connection receiving portion 39 of the second unit 27, so that the deviation of the pitch of the electrode terminals 13A and 13B It can be adjusted by the clearance CL (see FIGS. 3, 15 and 16).

  Next, the process of assembling the wiring module 20 to the power storage element group 10 will be described. As shown in FIG. 7, twelve power storage elements 11 are arranged so that the polarities of the adjacent electrode terminals 13 </ b> A and 13 </ b> B are reversed, and the power storage element group 10 is manufactured.

  The connecting members 21A and 21B are accommodated in the units 26 and 27, and the first unit 26 and the second unit 27 are connected. Then, the connection hole 46 A of the first lid unit 42 is received by the first connection receiving portion 47 of the second lid unit 48, and the connection hole 46 A of the third lid unit 54 is received by the first connection receiving portion 47 of the fourth lid unit 56. The two connection pieces 38 of the first unit 26 are received by the two second connection receiving portions 39 of the second unit 27, and the two units 26 and 27 are connected to obtain the wiring module 20. (See FIG. 2).

  In a state where the two units 26 and 27 are connected, the connection hole 46A of the first lid unit 42 and the first connection receiving portion 47 of the second lid unit 48, the connection hole 46A of the third lid unit 54 and the first connection receiving portion 47 are connected. Clearances CL are respectively provided between the first connection receiving portion 47 of the four-lid unit 56 and between the connection piece 38 of the first unit 26 and the second connection receiving portion 39 of the second unit 27 (see FIG. 3).

Next, the wiring module 20 is arranged on the storage element group 10 (on the terminal formation surface 12A of the storage element 11).
In the present embodiment, the electrode terminals 13A and 13B have a flat plate shape, and the connection members 21A and 21B have a plate shape and are not provided with a structure for positioning with each other. When arranged on 12A, the connecting member 21 overlaps the electrode terminals 13A and 13B in a state in which movement of the power storage elements 11 in the arrangement direction is permitted.

  However, in the present embodiment, the pitch between the electrode terminals 13A and 13B is set by the clearance CL provided between the connecting plate portion 46 and the first connecting receiving portion 47 and between the connecting piece 38 and the second connecting receiving portion 39. Therefore, the joining operation can be performed by welding while aligning the connecting members 21A and 21B with the corresponding electrode terminals 13A and 13B.

  After joining all the connecting members 21A, 21B and the electrode terminals 13A, 13B, the lid latching claws 43A of the first lid part 41 are latched by the latching receiving parts 36 provided at the corresponding positions and closed. Next, the engagement holes 52 </ b> A and the engagement protrusions 29 </ b> C of the second lid part 51 and the fourth lid part 58 are engaged to close the second lid part 51 and the fourth lid part 58.

  Then, after the lid latching claw 43A of the third lid part 53 is latched to the latch receiving part 36 at the corresponding position, the third hinge 57 is extended, and the engagement protrusions 55, 55A is fitted into the notch 44 formed at the edge of the first lid 41. Next, when the engagement protrusions 55 and 55A of the third lid 53 are engaged with the engagement hole 37A, and the engagement protrusion 55B of the third lid is engaged with the engagement hole 37B, the third lid 53 is locked and closed (see FIG. 1). Thereby, the electrical storage module M1 of this embodiment is obtained.

Next, the operation and effect of this embodiment will be described.
In the present embodiment, when the insulation protector 25 is arranged on the terminal forming surface 12A on which the electrode terminals 13A and 13B of the electricity storage element 11 are formed, the connection members 21A and 21B are allowed to move in the direction in which the electricity storage elements 11 are arranged. In this state, the electrode terminals 13A and 13B overlap with each other, so that it is difficult to align the electrode terminals 13A and 13B with the connection members 21A and 21B.

However, in the present embodiment, the connecting plate portion 46 and the connecting piece 38 are formed in the first unit 26 out of the two adjacent units 26 and 27, and the first connecting receiving portion 47 and the second connecting portion 38 are formed in the second unit 27. A connection receiving portion 39 is formed, and a clearance CL is provided between the connection portion (the connection plate portion 46 and the connection piece 38) and the connection receiving portion (the first connection receiving portion 47, the second connection receiving portion 39). Therefore, the pitch shift of the electrode terminals 13A and 13B is adjusted by the clearance CL, and the connection work between the connection members 21A and 21B and the electrode terminals 13A and 13B can be performed smoothly.
As a result, according to the present embodiment, the wiring module 20 that improves the assembling property to the power storage element group 10 formed by connecting a plurality of power storage elements 11 including the electrode terminals 13A and 13B that are difficult to align with the connection member 21. Can be provided.

  In addition, according to the present embodiment, the first unit 26 is provided with a plurality of connecting portions (the connecting plate portion 46 and the connecting piece 38), while the second unit 27 has a connecting receiving portion (the first connecting receiving portion 47). Since a plurality of second connection receiving portions 39) are provided, pitch adjustment is possible at a plurality of locations.

Moreover, according to this embodiment, since the electrode terminals 13A and 13B and the connection member 21 are joined by welding, the electrical connection between the electrode terminals 13A and 13B and the connection member 21 is ensured. Can do.
Moreover, according to this embodiment, since the welding confirmation hole 22A which confirms the welding state is provided in the connection member 21, a welding state can be confirmed easily.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the first unit 26 is provided with four connecting portions 46 and 38, while the second unit 27 is provided with four connecting receiving portions 47 and 39. The number of the locking parts and the locked parts may be 1 to 3, or 5 or more.
(2) In the above embodiment, the electrode terminals 13A and 13B and the connection member 21 are joined by welding. However, the electrode terminal and the connection member may be joined by a method such as soldering. Good.
(3) In the above embodiment, the connection member 21 provided with the confirmation hole for confirming the welding state is shown. However, the connection member 21 without the confirmation hole may be used.
(4) In the above embodiment, the power storage element 11 having the plate-like electrode terminals 13A and 13B is shown. However, even if the power storage element has an electrode terminal that has a concave shape and has a screw portion formed therein, Good.

DESCRIPTION OF SYMBOLS 10 ... Power storage element group 11 ... Power storage element 12A ... Terminal formation surface 13A ... Positive electrode terminal 13B ... Negative electrode terminal 20 ... Wiring module 21 ... Connection member 21A ... (Other than external connection member) Connection member 21B ... (External) Connection member 22 ... terminal connection 22A ... welding confirmation hole (confirmation hole)
25 ... Insulation protector 26 ... First unit (one unit)
27. Second unit (the other unit)
28: Connection member holding part (holding part)
29A ... Connection member housing part 29B ... External connection member housing part 38 ... Connecting piece (locking part)
38A ... Connection claw (locking part)
39 ... 2nd connection receiving part (locked part)
41 ... 1st cover part 42 ... 1st cover unit 46 ... Connection board part (locking part)
46A ... Connection hole (locking part)
47 ... 1st connection receiving part (locked part)
47A ... Connection claw (locked part)
48 ... 2nd lid unit 53 ... 3rd lid part 54 ... 3rd lid unit 56 ... 4th lid unit M1 ... Power storage module

Claims (4)

A wiring module comprising: a connection member that electrically connects between electrode terminals of a power storage element group in which a plurality of power storage elements each having a positive electrode electrode and a negative electrode terminal are arranged; and an insulation protector that is made of an insulating material and holds the connection member. There,
The insulation protector is formed by connecting a plurality of units having a holding portion for holding the connection member,
When the insulation protector is disposed on the terminal forming surface on which the electrode terminal of the power storage element is formed, the connection member overlaps the electrode terminal in a state where the connection member is allowed to move in the arrangement direction of the power storage element. And
One of the adjacent units has a locking portion that locks the other unit, and the other unit has a locked portion that is locked to the locking portion of the one unit. Formed,
A wiring module in which a clearance is provided between the locking portion and the locked portion. 2. The wiring module according to claim 1, wherein the one unit is provided with a plurality of the locking portions, and the other unit is provided with a plurality of the locked portions. The wiring module according to claim 1, wherein the electrode terminal and the connection member are joined by welding. The wiring module according to claim 3, wherein the connection member is provided with a confirmation hole for confirming a welding state.

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