JP2016066439A - Wiring module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring module which improves workability in member mounting work.SOLUTION: A wiring module 10 is mounted to a power storage element group 11 that is formed by arranging a plurality of power storage elements 12 side by side, each power storage element including electrode terminals 13 of a positive electrode and a negative electrode. The wiring module includes: a bus bar 14 that connects the neighboring electrode terminals 13; a detection terminal 15 which is electrically connected to the power storage element 12; and an insulation protector 20 which holds the bus bar 14 and the detection terminal 15. The insulation protector 20 includes an external connection member holding part 30 that holds an external connection member 56, and a main body part 21. The external connection member holding part 30 includes an insulation wall part 40 that insulates and protects the external connection member 56, and at least a portion of the insulation wall part 40 is continued from the main body part 21 via a first hinge 44 and disposed while rising from the main body part 21 by folding the first hinge 44.SELECTED DRAWING: Figure 16

Description

  The present invention relates to a wiring module.

  For example, a power storage module mounted on, for example, an electric vehicle or a hybrid vehicle is generally configured by connecting a large number of power storage elements in series via a connection member such as a bus bar.

  As an example of such an electricity storage module, a battery module to be assembled by attaching a battery wiring module provided with a connection member, an external connection terminal connected to another device, etc. to a unit cell group in which a plurality of unit cells are arranged. It is known (see, for example, Patent Document 1).

  The battery wiring module described in Patent Document 1 includes a plurality of connection members that connect electrode terminals, external connection terminals that are connected to other devices, and a resin protector that holds them. In addition, the power storage module as described above may include a detection terminal that detects the state (voltage, temperature, etc.) of the power storage element.

JP 2014-35972 A

  In this type of battery wiring module, the resin protector is provided with a holding portion that holds the connection member and the external connection terminal. Here, as described in Patent Document 1, the external connection terminal may be held in the resin protector so as to protrude from other portions. In such a case, in order to ensure the insulation of the external connection terminal, a holding part surrounded by an insulating wall part protruding from the other part may be provided in the resin protector.

  Since it is difficult for a finger to enter the holding part surrounded by the insulating wall part protruding from the other parts, work such as inserting external connection terminals, detection terminals, connection members, etc. into such a holding part is performed. It was difficult and the work time was long.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a wiring module that is excellent in workability of member mounting work.

  The present invention relates to a wiring module attached to a power storage element group in which a plurality of power storage elements having positive and negative electrode terminals are arranged, and a connection member that connects between the adjacent electrode terminals; A conductive member that is connected to the connection member, and an insulating protector that holds the connection member and the conductive member. The insulating protector holds at least one member of the connection member and the conductive member. And a main body provided with the holding part, the holding part has an insulating wall part that insulates and protects a member held by the holding part, and the insulating wall part is at least partially Is a wiring module that is connected to the main body via a hinge and is arranged upright from the main body by bending the hinge.

  In the present invention, the holding portion that holds at least one member of the connection member and the conductive member has an insulating wall portion that insulates and protects the member held by the holding portion, and the insulating wall portion is at least partially Are connected from the main body through a hinge, and are arranged upright from the main body by bending the hinge. In other words, in the present invention, since the insulating wall portion can be arranged by folding the hinge after holding at least one member of the connecting member and the conductive member on the holding portion, when attaching the member to the holding portion In addition, at least a part of the insulating wall portion that may interfere with the work is not disposed on the holding portion, and the attachment work is easy to perform. Further, in the present invention, when the hinge is bent after holding the member in the holding portion, the insulating wall portion can be erected and thus the member held in the holding portion can be insulated and protected. As a result, according to the present invention, it is possible to provide a wiring module that is excellent in workability of member mounting work.

The present invention may have the following configurations.
The entirety of the insulating wall portion may be continuous from the main body portion via the hinge.
With such a configuration, before the hinge is bent, the entire insulating wall portion is not arranged, and there is no insulating wall portion that can hinder the work when attaching the member to the holding portion. Installation work can be performed more smoothly.

The insulating protector may include a wall locking portion that locks the insulating wall portion to the main body portion in a state where the insulating wall portion stands from the main body portion.
With such a configuration, the insulating wall portion can be fixed to the main body portion while standing up from the main body portion, so that the subsequent work is easy to perform. Moreover, when it is set as the above structures, since it is not necessary to prepare separately the member which fixes an insulating wall part to the main-body part in the state which stood up from the main-body part, the number of parts can be reduced.

The insulating wall portion may have a plurality of wall portions arranged in different directions.
With such a configuration, the member held by the holding portion can be insulated and protected from a plurality of different directions.

  A member disposed along the insulating wall portion may be provided, and the insulating wall portion may include an openable / closable lid that covers the member disposed along the insulating wall portion.

  For example, when an external connection member having an external connection terminal connected to an external device is arranged along the insulating wall portion, when performing an operation of connecting the external connection terminal and the external device, the external connection terminal is in an exposed state. Although there is a need, there is a concern of a short circuit when the external connection member is exposed when the connection work is not performed. Therefore, with the above configuration, when performing a connection operation between a member disposed along the insulating wall and another member, the lid is left open, and when the connection is not performed, the lid is closed. And the member can be insulated and protected. In addition, when a member that does not perform connection work with another member is arranged along the insulating wall portion, when the member is arranged along the insulating wall portion, the lid portion is left open to insulate the member. If the lid is closed after being arranged along the wall, the member can be insulated and protected, which is preferable.

The insulating wall portion may include a lid locking portion that holds the lid portion in a closed state.
With such a configuration, it is possible to reliably protect the members disposed along the insulating wall portion.

  ADVANTAGE OF THE INVENTION According to this invention, the wiring module excellent in workability | operativity of the attachment operation | work of a member can be provided.

Plan view of the wiring module of Embodiment 1 Side view of wiring module Front view of wiring module Plan view of insulation protector immediately after molding Side view of insulation protector immediately after molding Front view of insulation protector immediately after molding Top view of the insulation protector with the detection terminal inserted Top view of the insulation protector with the connection member and external connection member inserted The top view of the wiring module of the state which bent the 1st hinge Side view of wiring module with first hinge bent Front view of the wiring module with the first hinge bent Plan view of wiring module of embodiment 2 Side view of wiring module Front view of wiring module Plan view of insulation protector immediately after molding Side view of insulation protector immediately after molding Front view of insulation protector immediately after molding Top view of the insulation protector with the detection terminal inserted The top view of the insulation protector of the state which bent the 1st hinge Side view of insulation protector with first hinge bent Front view of the insulation protector with the first hinge bent Top view of the insulation protector with the connection member and external connection member inserted Plan view of storage element group

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. 1 to 11 and FIG. In the following description, the lower part in FIG. 1 is the front and the upper part is the rear. 2 and 3, the upper part is the upper part, and the lower part is the lower part. About a several same member, a code | symbol may be attached | subjected to one member and a code | symbol may be abbreviate | omitted about another member.

  The wiring module 10 of this embodiment is attached to a power storage element group 11 in which a plurality of power storage elements 12 having positive and negative electrode terminals 13 are arranged. The wiring module 10 connects adjacent electrode terminals 13 of a plurality of power storage elements 12 arranged with a bus bar 14 (an example of a connection member). A power storage module (not shown) to which the wiring module 10 is attached is used as a drive source for a vehicle such as an electric vehicle or a hybrid vehicle.

(Power storage module)
The power storage module includes, for example, a power storage element group 11 (see FIG. 23) in which eight (plural) power storage elements 12 are arranged, and a wiring module 10 that connects the eight power storage elements 12. Yes.

(Storage element 12)
As the storage element 12 constituting the storage element group 11, any storage element 12 such as a secondary battery, a capacitor, or a capacitor can be used as necessary. A secondary battery is used as the electricity storage device 12 according to this embodiment.

  As shown in FIG. 23, the power storage element 12 has an electrode terminal 13 protruding vertically from the upper surface of a flat rectangular parallelepiped body 12A in which a power generation element (not shown) is accommodated. The electrode terminal 13 includes a positive electrode terminal (positive electrode terminal 13) and a negative electrode terminal (negative electrode terminal 13).

  The electrode terminal 13 has a nut shape, and a circular screw hole 13A is formed at the center. A shaft portion (not shown) of a bolt is screwed into the screw hole 13A of the electrode terminal 13 to fix the bus bar 14, the external connection member 56, and the detection terminal 15 described later.

  The direction of each power storage element 12 is arranged so that the polarities of adjacent electrode terminals 13 are opposite. A storage element group 11 composed of a plurality of storage elements 12 is fixed by a holding plate (not shown).

(Wiring module 10)
As shown in FIG. 1, the wiring module 10 is connected to a plurality of bus bars 14 (an example of a connection member) that connect adjacent electrode terminals 13 of different power storage elements 12 and the electrode terminals 13 of the power storage elements 12. An external connection member 56 (an example of a conductive member) having an external connection terminal 58A that is electrically connected to an external device, a detection terminal 15 (an example of a conductive member) that detects the state of the storage element 12, the bus bar 14, The external connection member 56 and the insulation protector 20 that holds the detection terminal 15 are provided.

(Bus bar 14)
The bus bar 14 is made of a metal such as copper, a copper alloy, stainless steel (SUS), or aluminum. The bus bar 14 has a plate shape with a length corresponding to the dimension between the adjacent electrode terminals 13, and a pair of circular insertion holes 14 </ b> A through which the shaft portions of the bolts are inserted are formed. The shape of the insertion hole 14A is an oval shape that is long in the left-right direction (connection direction).

(External connection member 56)
The external connection member 56 is made of a metal such as copper, copper alloy, stainless steel (SUS), or aluminum, for example, and has one end connected to the electrode terminal 13 connected in series with the storage element 12 as shown in FIG. The other end is electrically connected to an external device (not shown) such as an inverter or another power storage module. One end side of the external connection member 56 is disposed in a frame-shaped portion surrounded by the partition wall 31 and the insulating wall portion 40 of the external connection member holding portion 30. The other end side of the external connection member 56 is disposed along the insulating wall portion 40 (an example of a member disposed along the insulating wall portion 40).

  One end side of the external connection member 56 is a terminal connection portion 57 in which an insertion hole 57A through which the electrode terminal 13 of the power storage element 12 is inserted and connected is formed. The other end side of the external connection member 56 is provided with an external connection portion 58 that includes an upright wall 58B that stands substantially perpendicular to the terminal connection portion 57 and an external connection terminal 58A that protrudes perpendicularly to the center of the upright wall 58B. It is. The external connection terminal 58A has a cylindrical shape.

(Detection terminal 15)
A detection terminal 15 for detecting the voltage of the storage element 12 is overlaid on the bus bar 14. The detection terminal 15 is formed by pressing a metal plate material into a predetermined shape. As the metal plate material, any metal such as copper, copper alloy, iron, iron alloy, aluminum, and aluminum alloy can be appropriately selected as necessary. The detection terminal 15 includes a plate-like electrode connecting portion 16 and a barrel portion 18 extending from the electrode connecting portion 16.

  The electrode connection portion 16 is formed with a through hole 16A through which a bolt is inserted. The detection terminal 15 is electrically connected to the electrode terminal 13 by being sandwiched between the head of the bolt and the bus bar 14 in one of the adjacent electrode terminals 13 connected by the bus bar 14. Yes.

  A concave portion 17 is formed between the electrode connecting portion 16 and the barrel portion 18 and is locked by a locking convex portion 27 formed on the partition wall 23.

  One end of an electric wire 19 for detecting a voltage is crimped to the barrel portion 18. The other end of the electric wire 19 is connected to a device (not shown) such as an ECU. The barrel portion 18 extends from the side of the electrode connection portion 16.

  The ECU is equipped with a microcomputer, elements, and the like, and has a function for detecting voltage, current, temperature, etc. of the electricity storage elements 12 and controlling charge / discharge of each electricity storage element 12. Of the configuration.

(Insulation protector 20)
The insulation protector 20 is made of an insulating resin and holds the bus bar 14, the external connection member 56, and the detection terminal 15. The insulation protector 20 includes a main body 21 provided with a bus bar holding portion 22 that holds the bus bar 14 and the detection terminal 15, and an external connection member holding portion 30 that holds the external connection member 56 and the detection terminal 15.

  As shown in FIG. 1, in the main body portion 21, a bus bar holding portion 22, an external connection member holding portion 30, and a bus bar holding portion 22 are arranged in this order in the left-right direction (arrangement direction of the power storage elements 12). . In the main body portion 21, two bus bar holding portions 22 are arranged in front in the left-right direction. Further, in the main body portion 21, an electric wire accommodating portion 29 that accommodates the electric wires 19 connected to the detection terminals 15 is formed between the bus bar holding portions 22 arranged in two rows. The electric wire housing portion 29 includes a pair of side wall portions 29A arranged along the direction in which the power storage elements 12 are arranged (the left-right direction in FIG. 1) and a bottom wall portion 29B that connects the pair of side wall portions 29A. The electric wire 19 is placed on the bottom wall portion 29B.

(Bus bar holding part 22)
The bus bar holding part 22 is provided with a length corresponding to the length of the bus bar 14. The bus bar holding part 22 includes a rectangular partition wall 23 surrounding the bus bar 14 placed on the bottom plate 22 </ b> A, and the bus bar 14. And a plurality of detachment restricting pieces 24 that restrict detachment from the detachment.

  An opening 25 where the bottom plate 22A is not provided is formed at a position where the electrode terminal 13 is disposed. The partition wall 23 is formed with a height that can prevent a tool or the like from coming into contact with the electrode terminal 13 and the bus bar 14 and short-circuiting.

  The partition wall 23 on the side where the detection terminal 15 is arranged opens so that the barrel portion 18 of the detection terminal 15 can be led out to the wire accommodating portion 29. An opening provided in the partition wall 23 on the side of the electric wire accommodating portion 29 is an electric wire outlet 26. In the partition wall 23, a portion where the region between the barrel portion 18 of the detection terminal 15 and the wire connection portion is disposed is a locking convex portion that fits into the concave portion 17 of the detection terminal 15 and locks the detection terminal 15. 27 is protrudingly formed. The wire outlet 26 is formed with a pair of terminal pressing pieces 28 for preventing the detection terminals 15 from coming off.

(External connection member holding part 30)
The external connection member holding part 30 (an example of a holding part) has an insulating wall part 40 that insulates and protects the external connection member 56, and a part of the insulating wall part 40 and a part of the partition wall 31 are formed by the first hinge 44 ( The first hinge 44 is bent and the first hinge 44 is bent so as to stand upright from the main body 21.

  As shown in FIG. 1, two external connection members 56 are held in the external connection member holding portion 30. Of the external connection member holding part 30, the holding part on the right side in the figure is referred to as a first holding part 30A, and the holding part on the left side in the figure is referred to as a second holding part 30B. External connection members 56 are respectively held by the first holding part 30A and the second holding part 30B. In the first holding portion 30 </ b> A, the detection terminal 15 is held below the terminal connection portion 57 of the external connection member 56.

  As shown in FIG. 8, the first holding part 30 </ b> A and the second holding part 30 </ b> B are connected to the partition wall 31 that surrounds the outer peripheral edge of the terminal connection part 57 of the external connection member 56, and the external connection member 56. Insulating wall part 40 where external connection part 58 is arranged, ceiling wall part 50 arranged on the upper side of insulating wall part 40, and lid part 52 which continues from ceiling wall part 50 via the 2nd hinge 51 .

  Two separation regulating pieces 24 that regulate the separation of the external connection member 56 from the first holding unit 30A and the second holding unit 30B are provided at each corner of the partition wall 31 disposed on the rear side. ing. The partition wall 31 is formed with a height that can prevent a tool or the like from coming into contact with the electrode terminal 13 and the terminal connection portion 57 of the external connection terminal 58A to cause a short circuit. In the first holding unit 30A and the second holding unit 30B, an opening 33A where the bottom plate 33 is not provided is formed at a position where the electrode terminal 13 is arranged.

  The electrode connection portion 16 of the detection terminal 15 is disposed at a position overlapping the electrode terminal 13 of the opening portion 33A formed in the first holding portion 30A. Of the partition wall 31 of the first holding part 30A, the part where the region between the barrel part 18 of the detection terminal 15 and the electrode connection part 16 is arranged is fitted into the concave part 17 of the detection terminal 15 and is detected. A locking projection 34 is formed to protrude. The wire outlet 35 is formed with a pair of terminal pressing pieces 36 for preventing the detection terminal 15 from coming off.

  Further, the first holding part 30 </ b> A is provided with a barrel part 18 of the detection terminal 15 and a wire holding part 37 in which the electric wire 19 connected to the barrel part 18 is arranged. A slit-like wire lead-out groove 38 for leading out the electric wire 19 connected to the detection terminal 15 is formed in the insulating wall portion 40 that continues from the partition wall 31 of the first holding portion 30A.

  The insulating wall 40 has a plurality of walls 40A, 40B, and 40C that are arranged in different directions. Specifically, the insulating wall portion 40 is connected to the partition wall 31, and in the main body portion 21, the first wall portion 40 </ b> A and the first wall portion 40 </ b> A are connected to the first holding portion 30 </ b> A and the first holding portion 30 </ b> A. 2nd wall part 40B partitioned off into 2 holding | maintenance part 30B, and 3rd wall part 40C which protrudes in a perpendicular | vertical direction from the side edge of 1st wall part 40A is provided. The third wall portion 40C and the second wall portion 40B are provided with a holding convex portion 41 that holds the external connection portion 58 (standing wall 58B) of the external connection member 56.

  In the present embodiment, a part of the third wall part 40 </ b> C (a part of the insulating wall part 40) and a part of the partition wall 31 are connected to the wall forming member 45 connected to the main body part 21 via the first hinge 44. It is arranged so as to stand upright from the main body 21 by being bent at one hinge 44 (see FIGS. 5 and 10).

  The wall forming member 45 has a partition wall forming portion 46 that overlaps the partition wall 31 formed on the main body portion 21 to form the partition wall 31 at a portion that continues from the main body portion 21 via the first hinge 44. Yes. Further, the wall forming member 45 includes a pair of third wall portions 47 that stand vertically from the partition wall forming portion 46, a ceiling wall portion 50 that connects the pair of third wall portions 47, and a second hinge from the ceiling wall portion 50. And a lid portion 52 that is continuous through 51.

  Of the end portions of the pair of third wall portions 47 of the wall forming member 45, the end portions opposite to the ceiling wall portion 50 (when the wall forming member 45 is attached to the main body portion 21 by bending the first hinge 44). A wall locking projection 48 (an example of a wall locking portion) that locks the insulating wall portion 40 to the main body portion 21 in a state where the insulating wall portion 40 stands up from the main body portion 21 is formed on the lower end). ing. The locking hole 42 for receiving the wall locking projection 48 is provided at a position adjacent to the third wall 40C on the main body 21 side.

  The third wall portion 47 of the wall forming member 45 has a lid locking portion 49 that holds the lid portion 52 in a closed state. The lid locking portion 49 is formed to project from the third wall portion 47, and a lock projection 49A that engages with the engagement projection 54A of the lid 52 is provided at the tip thereof. On the other hand, the lid 52 has a locking window 53 that receives the locking protrusion 49A, and an engagement protrusion that can be bent and deformed in the locking window 53 and engages with the locking protrusion 49A of the third wall 47. And an engagement piece 54 formed with a portion 54A.

  When the second hinge 51 is bent to move the lid portion 52 toward the third wall portion 47, and the engagement projection 54 </ b> A of the lid portion 52 is engaged with the lock projection 49 </ b> A of the third wall portion 47, the lid portion 52. Is held in the insulating wall 40 in a closed state. If the engagement piece 54 of the lid portion 52 in the closed state is pushed inward to bend and deform to release the engagement state between the engagement projection 54A and the lock projection 49A, the lid portion 52 can be opened. That is, in the present embodiment, the lid 52 can be opened and closed.

(Assembly method of wiring module 10)
Next, a method for assembling the wiring module 10 will be described.
The insulation protector 20 shown in FIGS. 4-6 is produced using a predetermined shaping | molding die. In this insulation protector 20, a part of the first wall part 40A, the second wall part 40B, the third wall part 40C and a part of the partition wall 31 are formed on the main body part 21 side, and the first hinge 44 is attached. The wall forming member 45 connected to the main body portion 21 includes a part of the third wall part 40C (third wall part 47 of the wall forming member), a part of the partition wall 31 (partition wall forming part 46), and the ceiling. A wall 50 and a lid 52 are formed.

  The detection terminal 15 is attached to the 1st holding | maintenance part 30A of the insulation protector 20 taken out from the shaping | molding die (refer FIG. 7). In this state, the external connection member holding part 30 is not provided with a part of the third wall part 40C, a part of the partition wall 31, the ceiling wall part 50, and the lid part 52. Is easy to do.

  Next, the external connection member 56 is attached to the external connection member holding portion 30 (the first holding portion 30A and the second holding portion 30B) of the insulation protector 20, and the bus bar 14 is placed on the bottom plate 22A of the bus bar holding portion 22 and accommodated.・ Hold it. On the bus bar 14 placed on the bus bar holding portion 22, the detection terminal 15 is also stacked and held (see FIG. 8).

  When the bus bar 14 and the external connection member 56 are fitted into the holding portions 22, 30 </ b> A, 30 </ b> B, the separation regulating piece 24 is bent and deformed, and when the bus bar 14 and the external connection member 56 are below the separation regulating piece 24, the separation regulation is performed. The pieces 24 and 32 are elastically restored, and the bus bars 14 and the external connection members 56 are held so as not to be detached from the holding portions 22, 30 </ b> A, and 30 </ b> B. Further, the external connection portion 58 (standing wall 58B) of the external connection member 56 is between the holding convex portion 41 and the first wall portion 40A provided on the third wall portion 40C and the second wall portion 40B of the insulating wall portion 40. It is held in the state arranged in. Even when the external connection member 56 is attached, the external connection member holding portion 30 is not provided with part of the third wall portion 40C, part of the partition wall 31, ceiling wall portion 50, and lid portion 52. Easy installation work.

  Next, when the first hinge 44 is bent so that the wall forming member 45 is disposed on the main body 21 side, and the wall locking protrusion 48 of the wall forming member 45 is locked in the locking hole 42 of the main body 21, FIG. 9 to 11, a part of the third wall part 40 </ b> C (the third wall part 47 of the wall forming member 45) and a part of the partition wall 31 (the partition wall forming part 46) stand up from the main body part 21. The main body 21 is locked in the state. In this state, the lid 52 is in an open state, and the connection work between the external connection terminal 58A and another device can be performed.

  When closing the lid portion 52, the second hinge 51 is bent to move the lid portion 52 toward the third wall portion 40C, and the engagement projection portion 54A of the lid portion 52 is moved to the lock projection portion 49A of the third wall portion 40C. Is engaged with the insulating wall 40, the wiring module 10 in the state shown in FIGS. 2 and 3 is obtained.

  When the wiring module 10 is attached to the power storage element group 11 shown in FIG. 23, the shaft portion of the bolt is inserted into the insertion hole 14A of the bus bar 14 and the insertion hole 57A of the external connection member 56, and the bolt is tightened, the power storage module is obtained.

  When connecting the external connection terminal 58A to another device, the lid 52 is opened. When the lid 52 in the closed state is opened, the engagement piece 54 of the lid 52 in the closed state is pushed inward to bend and deform, and the engagement state between the engagement protrusion 54A and the lock protrusion 49A. The lid 52 can be opened simply by releasing the.

(Function and effect)
According to the present embodiment, the following operations and effects are achieved.
In the present embodiment, the external connection member holding portion 30 has an insulating wall portion 40 that insulates and protects the external connection member 56, and a part of the insulating wall portion 40 (the third wall portion 47 of the wall forming member 45) is the first. The first hinge 44 is connected to the main body portion 21, and the first hinge 44 is bent to stand upright from the main body portion 21. That is, in the present embodiment, after the detection terminal 15 and the external connection member 56 are held by the external connection member holding part 30, the first hinge 44 is bent and a part of the insulating wall part 40 (third wall part 47) is formed. Therefore, when the detection terminal 15 and the external connection member 56 are attached to the external connection member holding portion 30, a part of the insulating wall portion 40 that may interfere with the work is disposed on the external connection member holding portion 30. It is easy to install.

  Further, in the present embodiment, after the detection terminal 15 and the external connection member 56 are held by the external connection member holding portion 30, the first hinge 44 is bent and a part of the insulating wall portion 40 is arranged upright. The external connection member 56 can be insulated and protected. As a result, according to the present embodiment, it is possible to provide the wiring module 10 that is excellent in workability for attaching the external connection member 56 and the detection terminal 15.

  In addition, according to the present embodiment, the insulation protector 20 has the wall locking protrusion 48 that locks the third wall portion 47 to the main body portion 21 in a state where the third wall portion 47 stands up from the main body portion 21. Since the wall portion 47 can be fixed to the main body portion 21 while standing from the main body portion 21, the subsequent work is easy to perform, and the third wall portion 47 (insulating wall portion 40) is raised from the main body portion 21. Since it is not necessary to separately prepare a member to be fixed to the main body portion 21, the number of parts can be reduced.

  Moreover, according to this embodiment, since the insulating wall part 40 has three wall part 40A, 40B, 40C distribute | arranged to a different direction, the external connection member 56 is made into the several different direction. Can be insulated and protected.

  In addition, according to the present embodiment, the insulating wall portion 40 has the openable and closable lid portion 52 that covers the external connection member 56 disposed along the insulating wall portion 40. When connecting with other members such as equipment, the lid 52 can be opened, and when not connecting, the lid 52 can be closed and the external connection member 56 can be insulated and protected. .

  Furthermore, according to the present embodiment, the insulating wall portion 40 includes the lid locking portion 49 that holds the lid portion 52 in the closed state, and thus the external connection member 56 disposed along the insulating wall portion 40. Can be reliably insulated and protected.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
In the following description, the lower part in FIG. 12 is the front and the upper part is the rear. In addition, the upper side in FIGS. 13 and 14 is the upper side, and the lower side is the lower side. About a several same member, a code | symbol may be attached | subjected to one member and a code | symbol may be abbreviate | omitted about another member. In addition, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The wiring module 60 of this embodiment is different from that of the first embodiment in that the entire insulating wall portion 82 is connected to the main body portion 62 via the first hinge 80.

  In the present embodiment, a pair of terminal pressing pieces 69 for preventing the detection terminal 15 from coming off is provided in a portion of the bus bar holding portion 63 where the region between the barrel portion 18 of the detection terminal 15 and the electrode connection portion 16 is arranged. Projecting inwardly.

  The partition wall 64 on the side where the detection terminal 15 is arranged opens so that the barrel portion 18 of the detection terminal 15 can be led out to the wire housing portion 29. An opening provided on the side of the electric wire accommodating portion 29 of the partition wall 64 is an electric wire outlet 67. A locking convex part that fits into the concave part 17 of the detection terminal 15 and locks the detection terminal 15 in a part of the partition wall 64 where the region between the barrel part 18 of the detection terminal 15 and the wire connection part is arranged. 68 and a pair of terminal pressing pieces 69 for preventing the detection terminal 15 from coming off are formed protruding inward.

  In the present embodiment, the external connection member holding portion 70 (an example of a holding portion) has an insulating wall portion 82 that insulates and protects the external connection member 56, and the entire insulating wall portion 82 and a part of the partition wall 71 are the first. The first hinge 80 is connected to the main body 62, and the first hinge 80 is bent to stand upright from the main body 62.

  As shown in FIG. 12, two external connection members 56 are held in the external connection member holding portion 70. Also in this embodiment, in the first holding portion 70A, the detection terminal 15 is held below the terminal connection portion 57 of the external connection member 56.

  The part of the partition wall 71 of the first holding part 70A where the region between the barrel part 18 of the detection terminal 15 and the electrode connection part 16 is disposed is fitted into the concave part 17 of the detection terminal 15 and is detected. A pair of terminal pressing pieces 76 for preventing the detection terminal 15 from coming off are formed in a projecting manner in the inner direction together with the locking projection 74 for locking the detection terminal 15. Further, the first holding portion 70 </ b> A is provided with a barrel portion 18 of the detection terminal 15 and an electric wire holding portion 77 in which the electric wire 19 connected to the barrel portion 18 is arranged. An opening 78 is provided at the end of the electric wire holding part 77 on the electric wire housing part 29 side, and the electric wire 19 connected to the detection terminal 15 is led out from the opening 78 of the electric wire holding part 77 into the electric wire housing part 29. It has come to be.

  The insulating wall portion 82 is connected to the partition wall 71 and rises in the main body portion 62 in the direction in which the power storage elements 12 are arranged, and the first wall portion 82A includes the first holding portion 70A and the second holding portion 70B. And a second wall portion 82B that divides the first wall portion 82A and two third wall portions 82C that protrude in the vertical direction from both side edges of the first wall portion 82A.

  In the present embodiment, the entire insulating wall portion 82 and a part of the partition wall 71 are formed by bending the wall forming member 81 connected to the main body portion 62 via the first hinge 80 at the first hinge 80. (See FIG. 16 and FIG. 20).

  The wall forming member 81 has a partition wall forming portion 83 that overlaps the partition wall 71 formed in the main body portion 62 to form the partition wall 71 at a portion that continues from the main body portion 62 via the first hinge 80. Yes. The wall forming member 81 includes the entire insulating wall portion 82 (the first wall portion 82A, the second wall portion 82B, and the third wall portion 82C), and the ceiling wall that continues from the third wall portion 82C via the third hinge 87. A portion 86 and a lid portion 88 extending from the ceiling wall portion 86.

  Of the end portions of the pair of third wall portions 82C, the end portion on the opposite side to the ceiling wall portion 86 (the lower hinge is arranged when the first hinge 80 is bent and the wall forming member 81 is attached to the main body portion 62). Wall locking projections 84 (an example of a wall locking portion) for locking the insulating wall portion 82 to the main body portion 62 in a state where the insulating wall portion 82 stands from the main body portion 62. A locking hole 79 for receiving the wall locking projection 84 is provided at a corresponding position of the main body 62.

  The third wall portion 82C has a lid locking portion 85 that holds the lid portion 88 in a closed state. The lid locking portion 85 is formed to project from the third wall portion 82C, and a locking projection 85A that engages with the engagement projection 90A of the lid 88 is provided at the tip thereof. On the other hand, the lid 88 has a locking window 53 that receives the locking protrusion 85A, and an engagement protrusion that can be bent and deformed in the locking window 53 and engages with the locking protrusion 85A of the third wall 82C. And an engagement piece 90 formed with a portion 90A.

  When the third hinge 87 is bent and the cover 88 is moved to a position facing the third wall 82C, and the engagement protrusion 90A of the cover 88 is engaged with the lock protrusion 85A of the third wall 82C, The lid portion 88 is held in a closed state by the insulating wall portion 82. If the engagement piece 90 of the lid portion 88 in the closed state is pushed inward and deformed to release the engagement state between the engagement projection 90A and the lock projection 85A, the lid 88 can be opened. That is, in the present embodiment, the lid 88 can be opened and closed.

Next, a method for assembling the wiring module 60 will be described.
The insulation protector 61 shown in FIGS. 15 to 17 is manufactured using a predetermined mold. In this insulation protector 61, a part of the partition wall 71 of the external connection member holding part 70 is formed on the main body part 62 side, and the wall forming member 81 connected to the main body part 62 via the first hinge 80 is formed. The entire insulating wall portion 82, a part of the partition wall 71 (partition wall forming portion 83), the ceiling wall portion 86, and the lid portion 88 are formed.

  The detection terminal 15 is attached to the first holding portion 70A of the insulating protector 61 taken out from the mold (see FIG. 18). In this state, since the entire insulating wall portion 82, a part of the partition wall 71, the ceiling wall portion 86, and the lid portion 88 are not arranged in the external connection member holding portion 70, the attaching operation of the detection terminal 15 is performed. Cheap.

  Next, when the first hinge 80 is bent and the wall forming member 81 is arranged on the main body 62 side, and the wall locking protrusion 84 of the wall forming member 81 is locked in the locking hole 72 of the main body 62, FIG. As shown in FIGS. 19 to 21, the insulating wall portion 82 and a part of the partition wall 71 are locked to the main body portion 62 in a state in which they stand up from the main body portion 62.

  Next, the external connection member 56 is attached to the external connection member holding portion 70 (the first holding portion 70A and the second holding portion 70B), and the bus bar 14 is placed on the bottom plate 63A of the bus bar holding portion 63 to be received and held. On the bus bar 14 placed on the bus bar holding portion 63, the detection terminal 15 is also stacked and held (see FIG. 22).

  When the bus bar 14 and the external connection member 56 are fitted into the holding portions 63, 70 </ b> A, 70 </ b> B, the separation regulating piece 24 is bent and deformed, and when the bus bar 14 and the external connection member 56 are below the separation regulating piece 24, the separation regulation is performed. The piece 24 is elastically restored, and the bus bars 14 and the external connection members 56 are held so as not to be detached from the holding portions 63, 70A, 70B. At this time, since the lid portion 88 is in an open state, the operation of arranging the external connection portion 58 (standing wall 58B) along the third wall portion 82C can be performed smoothly.

  When closing the lid portion 88, the third hinge 87 is bent to move the lid portion 88 to a position facing the first wall portion 40A, and the engagement protrusion 90A of the lid portion 88 is locked to the third wall portion 82C. When engaged with the projecting portion 85A, the lid portion 88 is held in the closed state by the insulating wall portion 82, and the wiring module 60 in the state shown in FIGS. 13 and 14 is obtained.

  When the wiring module 60 is attached to the power storage element group 11 shown in FIG. 23, the shaft portion of the bolt is inserted into the insertion hole 14A of the bus bar 14 and the insertion hole 57A of the external connection member 56, and the bolt is tightened, the power storage module is obtained.

  When the connection work between the external connection terminal 58A and another device is performed, the lid 88 is opened. When the closed cover 88 is opened, the engagement piece 90 of the closed cover 88 is pushed inward to bend and deform, and the engagement protrusion 90A and the lock protrusion 85A are engaged. The lid 88 can be opened simply by releasing the button. The configuration other than the above is substantially the same as that of the first embodiment.

According to the present embodiment, the following operations and effects are achieved.
In the present embodiment, since the entire insulating wall portion 82 is connected to the main body portion 62 via the first hinge 80, the entire insulating wall portion 82 is not disposed before the first hinge 80 is bent. State. Therefore, according to the present embodiment, since there is no insulating wall portion 82 that can hinder the work when the detection terminal 15 is attached to the external connection member holding part 70, the attachment work can be performed more smoothly. it can. As a result, also according to the present embodiment, it is possible to provide the wiring module 60 that is excellent in workability of the detection terminal 15 mounting work.

  Further, according to the present embodiment, the insulating protector 61 has the wall locking protrusion 84 that locks the insulating wall portion 82 to the main body portion 62 in a state where the insulating wall portion 82 stands up from the main body portion 62. Since the part 82 can be fixed to the main body part 62 while standing from the main body part 62, the subsequent work is easy to perform, and a member for fixing the insulating wall part 82 to the main body part 62 while standing from the main body part 62 is provided. Since it is not necessary to prepare separately, the number of parts can be reduced.

  Moreover, according to this embodiment, since the insulating wall part 82 has the three wall parts (82A, 82B, 82C) arranged in different directions, the external connection member 56 has a plurality of differences. Insulation protection from the direction.

  In addition, according to the present embodiment, the insulating wall portion 82 has the openable / closable lid portion 88 that covers the external connecting member 56 disposed along the insulating wall portion 82. When the connection work with this member is performed, the cover 88 can be opened, and when the connection is not performed, the cover 88 can be closed, and the external connection member 56 can be insulated and protected.

  Furthermore, according to the present embodiment, the insulating wall portion 82 has the lid locking portion 85 that holds the lid portion 88 in a closed state, and thus the external connection member 56 disposed along the insulating wall portion 82. Can be reliably insulated and protected.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiment described with reference to the above description and drawings, and may be, for example, the following embodiment.
(1) In the above-described embodiment, the insulating protector 20 including the wall locking protrusion 48 that locks the insulating wall portion 40 to the main body portion 21 in a state where the insulating wall portion 40 stands up from the main body portion 21 is shown. The part may be fixed to the main body part.
(2) In the above embodiment, the insulating wall portion 40 having the three wall portions 40A, 40B, and 40C arranged in different directions is shown, but the number of the wall portions may be one, two, or four or more. Good.
(3) Although the external connection member 56 having the external connection terminal 58A disposed along the insulating wall portion 40 is shown in the above embodiment, a configuration in which a conductive member other than the external connection member is disposed may be employed. .
(4) In the above-described embodiment, the insulating wall portion 40 having the lid portion 52 that can be opened and closed is shown. However, the lid portion may not be openable and closable, and may be an insulating wall portion without a lid portion.
(5) In the above embodiment, the insulating wall portion 40 having the lid locking portion 49 is shown. However, an insulating wall portion that does not include the lid locking portion may be used.
(6) Although the insulating protector 20 having the two holding portions 30A and 30B that respectively hold the two external connection members 56 is shown in the above embodiment, the number of the external connection members 56 is not limited to this. What is necessary is just to provide an external connection member holding | maintenance part according to the number of external connection members.

DESCRIPTION OF SYMBOLS 10,60 ... Wiring module 11 ... Power storage element group 12 ... Power storage element 13 ... Electrode terminal 14 ... Bus bar (connection member)
DESCRIPTION OF SYMBOLS 15 ... Detection terminal 19 ... Electric wire 20, 61 ... Insulation protector 21, 62 ... Main-body part 22, 63 ... Bus-bar holding part 30,70 ... External connection member holding part (holding part)
30A, 70A ... 1st holding part 30B, 70B ... 2nd holding part 31, 71 ... Partition wall 40, 82 ... Insulating wall part 40A, 82A ... 1st wall part 40B, 82B ... 2nd wall part 40C, 82C ... 1st 3 wall portions 42, 79 ... locking holes 44, 80 ... first hinge 45, 81 ... wall forming member 46, 82 ... partition wall forming portion 47 ... (wall forming member) third wall portion 48, 84 ... wall connection Stop projection (wall locking part)
49, 85 ... Lid locking portion 49A, 85A ... Lock projection 52, 88 ... Lid 53, 89 ... Locking window portion 54, 90 ... Engagement piece 54A, 90A ... Engagement projection 56 ... External connection member 57 ... Terminal connection part 58 ... External connection part 58A ... External connection terminal 58B ... Standing wall

Claims (6)

A wiring module attached to a storage element group in which a plurality of storage elements having positive and negative electrode terminals are arranged,
A connection member that connects between the adjacent electrode terminals, a conductive member that is electrically connected to the power storage element, and an insulation protector that holds the connection member and the conductive member,
The insulation protector includes a holding portion that holds at least one member of the connection member and the conductive member, and a main body portion provided with the holding portion,
The holding portion has an insulating wall portion that insulates and protects a member held by the holding portion,
The wiring module is configured such that at least a part of the insulating wall portion is connected to the main body portion via a hinge, and is arranged upright from the main body portion by bending the hinge. The wiring module according to claim 1, wherein the whole insulating wall portion is continuous from the main body portion via the hinge. The wiring module according to claim 1, wherein the insulating protector includes a wall locking portion that locks the insulating wall portion to the main body portion in a state where the insulating wall portion stands from the main body portion. The wiring module according to any one of claims 1 to 3, wherein the insulating wall portion includes a plurality of wall portions arranged in different directions. Comprising a member disposed along the insulating wall,
The wiring module according to any one of claims 1 to 4, wherein the insulating wall portion includes an openable / closable lid portion that covers a member disposed along the insulating wall portion. The wiring module according to claim 5, wherein the insulating wall portion includes a lid locking portion that holds the lid portion in a closed state.

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