Conductive module and temperature measuring device

Abstract

To achieve both simplification of installation work and stabilization of temperature measurement results.SOLUTION: A thermistor holder 40B has: a base 42 that is arranged opposite to a restraining member; and a thermistor holder 50. The thermistor holder has: an insertion hole 51 that is formed in the base and into which a thermistor 30 is inserted; a thermistor accommodating portion 52 that protrudes cylindrically from a peripheral edge part of the insertion hole and is inserted into a locking hole in the restraining member; first locking portions 53 that protrude from the peripheral edge part of the insertion hole with respective notches 52a and have claw portions 53a inserted into the locking holes lock into the peripheral edge part of the locking holes to hold the thermistor in the restraining member; and a pair of second locking portions 54 that protrude from the peripheral edge part of the insertion hole in a direction opposite to the thermistor accommodating portion and lock the thermistor. The thermistor is provided in a protruding state for each second locking portion, and has an engaged portion 34 that engages with the claw portions of the second locking portions at an accommodation completion position, thereby pressing a temperature measuring portion 32 against a surface of a battery cell.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a conductive module and a temperature measuring device. [Background technology]

[0002] A conductive module electrically connects a plurality of battery cells arranged in an array using a plurality of bus bars. The conductive module electrically connects each bus bar to a battery monitoring unit that monitors the battery state of the battery cells using wiring components such as electric wires. This type of conductive module is disclosed, for example, in Patent Document 1 listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-119651 Summary of the Invention [Problem to be solved by the invention]

[0004] The battery monitoring unit monitors the temperature of the battery cells as one of the battery conditions it monitors. For this reason, the battery module is equipped with a thermistor that detects the surface temperature of the battery cells. To improve the stability of the temperature measurement results, this thermistor needs to be kept in contact with the surface of the battery cells. There is a need to simplify the installation work on the battery module while ensuring the ability to maintain this contact.

[0005] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a conductive module and a temperature measuring device that can simplify the installation of a thermistor while stabilizing the temperature measurement results. [Means for solving the problem]

[0006] a thermistor that detects the surface temperature of the battery cell with a temperature measuring part that is in contact with the battery cell; and a housing member that houses the bus bar, the wiring part, and the thermistor, wherein the housing member has bus bar housing chambers that house the bus bar, each of which is provided for each of a plurality of bus bars, and into which the wiring part is routed and which is held by the battery module; and a thermistor holder that holds the thermistor, wherein the thermistor holder has a base that is disposed opposite to the restraining members of the plurality of battery cells that constitute the battery module, and a thermistor holder that is provided on the base and holds the thermistor, and the thermistor holder is formed in the base and has an insertion hole into which the thermistor is inserted, and a peripheral portion of the insertion hole that extends from the peripheral portion of the insertion hole to the restraining member. a thermistor accommodating portion provided with a pair of notches that protrude in a cylindrical shape toward the bundle member side and are inserted into a through-hole-shaped or notched hole-shaped locking hole provided in the restraining member and are arranged to face each other in a direction perpendicular to the cylindrical axis; first locking portions that protrude from the peripheral edge of the insertion hole at each of the notches and lock claws that are inserted into the locking holes with the peripheral edge of the locking hole to hold the busbar receiver in the restraining member when the busbar receiver is held in the battery module; and a pair of second locking portions that protrude in the opposite direction from the accommodating portion and lock the thermistor housed in the thermistor accommodating portion, the thermistor being provided in a protruding state for each of the second locking portions, and being positioned closer to the insertion hole than the claw portions of the second locking portions when the thermistor is fully housed in the thermistor accommodating portion, and having an engaged portion that presses the temperature measuring portion protruding from the thermistor accommodating portion against the surface of the battery cell by being engaged with the claw portions of the second locking portions when the thermistor is fully housed.

[0007] The temperature measuring device according to the present invention comprises a thermistor that detects the surface temperature of a battery cell that constitutes a battery module with a temperature measuring part that is in contact with the battery cell, and a thermistor holder that holds the thermistor, the thermistor holder having a base that is disposed opposite a restraining member for the plurality of battery cells that constitute the battery module, and a thermistor holder that is provided on the base and holds the thermistor, the thermistor holder having an insertion hole into which the thermistor is inserted, and a thermistor accommodating member that protrudes cylindrically from the periphery of the insertion hole toward the restraining member and is inserted into a through-hole-shaped or notched hole-shaped locking hole provided in the restraining member, and is provided with a pair of notches that are disposed opposite each other in a direction perpendicular to the cylindrical axis. a first locking portion that protrudes from the peripheral portion of the insertion hole at each of the notches and locks a claw portion inserted into the locking hole with the peripheral portion of the locking hole to hold it in the restraining member; and a pair of second locking portions that protrude from the peripheral portion of the insertion hole in a direction opposite to the thermistor accommodating portion and lock the thermistor accommodated in the thermistor accommodating portion, wherein the thermistor is provided in a protruding state for each of the second locking portions and is positioned closer to the insertion hole than the claw portion of the second locking portion at the completed accommodation position in the thermistor accommodating portion, and has an engaged portion that presses the temperature measuring portion protruding from the thermistor accommodating portion against the surface of the battery cell by engaging with the claw portion of the second locking portion at the completed accommodation position. [Effects of the Invention]

[0008] The conductive module according to the present invention corresponds to a combination of a thermistor and a thermistor holder with a bus bar, bus bar receiver, or the like equivalent to a conventional conductive module. In such a conductive module, the thermistor holder with the thermistor attached can be assembled to a restraining member at the same time as the bus bar receiver is assembled to the battery module. Then, simply by assembling the thermistor holder to the restraining member, the temperature measuring portion of the thermistor of this conductive module can be pressed against the surface of the battery cell. Therefore, the conductive module according to the present invention simplifies the thermistor installation process. Meanwhile, the temperature measuring device according to the present invention can be pressed against the surface of the battery cell simply by assembling it to the restraining member. Therefore, the temperature measuring device according to the present invention simplifies the thermistor installation process.

[0009] Furthermore, the conductive module and temperature measuring device according to the present invention can press the temperature measuring part of the thermistor against the surface of the battery cell by locking the locked part of the thermistor with the second locking part of the thermistor holder. Therefore, the conductive module and temperature measuring device according to the present invention can maintain contact between the temperature measuring part and the battery cell, thereby stabilizing the temperature measurement results by the thermistor.

[0010] In this way, the conductive module and temperature measuring device according to the present invention can simultaneously simplify the thermistor installation work and stabilize the temperature measurement results. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is an exploded perspective view showing a conductive module and a temperature measuring device according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view partially showing the temperature measuring device side. [Figure 3] FIG. 3 is a partial cross-sectional view showing the temperature measuring device side. [Figure 4] FIG. 4 is a partial cross-sectional view showing the temperature measuring device side. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A conductive module and a temperature measuring device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] [Embodiment] An embodiment of a conductive module and a temperature measuring device according to the present invention will be described with reference to FIGS. 1 to 4. FIG.

[0014] Reference numeral 1 in FIGS. 1 to 4 indicates a conductive module of this embodiment. This conductive module 1 is assembled to a battery module BM (FIG. 1) in which a plurality of battery cells BC are arranged (for example, arranged in a single row), and electrically connects the plurality of battery cells BC in this battery module BM. This conductive module 1 also electrically connects the battery module BM to a battery monitoring unit (not shown), allowing the battery monitoring unit to monitor the battery state of the battery cells BC. The conductive module 1, together with the battery module BM, constitutes a battery pack. The battery pack is mounted, for example, on a vehicle (such as a BEV (Battery Electric Vehicle) or a HEV (Hybrid Electric Vehicle) that has a rotating machine as its driving source, and is used to supply power to the rotating machine.

[0015] Each battery cell BC includes a cell body BCa and positive and negative electrode terminals BCb (Fig. 1). The battery cell BC shown here has a cell body BCa formed in a rectangular shape with six outer wall surfaces. In the battery module BM, adjacent cell bodies BCa in the arrangement direction are arranged with one outer wall surface facing each other. This battery module BM includes one electrode terminal group BCc in which one electrode terminal BCb of each battery cell BC is arranged along the arrangement direction, and another electrode terminal group BCc in which the other electrode terminals BCb of each battery cell BC are arranged along the arrangement direction (Fig. 1).

[0016] Hereinafter, when the term "arrangement direction" is used without any particular mention, it refers to the arrangement direction of a plurality of battery cells BC or the arrangement direction of a plurality of electrode terminals BCb in an electrode terminal group BCc.

[0017] In this example, each battery cell BC has a positive and negative electrode terminal BCb on one of the six outer wall surfaces of the cell body BCa (Fig. 1). Therefore, in the battery module BM, two electrode terminal groups BCc are provided on one plane (Fig. 1).

[0018] This battery module BM is equipped with restraining members BR that restrain and fix the multiple battery cells BC in an arranged state (Fig. 1). These restraining members BR are molded from a metal material or a synthetic resin material.

[0019] The restraint member BR is disposed between the two electrode terminal groups BCc and has a flat plate portion BRa extending between the battery cell BC disposed at one end of the arrangement direction and the battery cell BC disposed at the other end of the arrangement direction (Fig. 1). The flat plate portion BRa is formed in a rectangular plate shape.

[0020] The restraining member BR has a first locking portion BRb that hangs down from one end of the flat portion BRa in the extension direction and is positioned opposite and locks against the side surface of the battery cell BC located at one end of the arrangement direction, and a second locking portion BRc that hangs down from the other end of the flat portion BRa in the extension direction and is positioned opposite and locks against the side surface of the battery cell BC located at the other end of the arrangement direction (Fig. 1).For example, in the restraining member BR, the first locking portion BRb and the second locking portion BRc are fixed to the side surfaces of each battery cell BC.

[0021] The electrode terminal BCb shown here is formed in a flat plate shape and is physically and electrically connected to the bus bar 10 (described later) by welding or the like (FIG. 1). However, the electrode terminal BCb may be formed in a pole column shape with a male screw portion. In this case, the bus bar 10 is fixed to the electrode terminal BCb by screwing a female screw member into the male screw portion of the electrode terminal BCb.

[0022] The conductive module 1 includes bus bars 10 that physically and electrically connect to the electrode terminals BCb of the battery cells BC that make up the battery module BM (FIG. 1). The bus bars 10 are formed from a conductive material such as metal. The bus bars 10 are metal plate-shaped conductive components, and are formed by press-forming, for example, a metal plate as the base material.

[0023] The conductive module 1 includes, as the busbars 10, one that is physically and electrically connected to adjacent electrode terminals BCb of a pair of battery cells BC in the battery module BM, one that is physically and electrically connected to the electrode terminal BCb that serves as the total negative electrode in the battery module BM, and one that is physically and electrically connected to the electrode terminal BCb that serves as the total positive electrode in the battery module BM.

[0024] The conductive module 1 includes a wiring component 20 that electrically connects the busbar 10 to the battery monitoring unit (FIG. 1). The wiring component 20 may be an electric wire provided for each busbar 10, or may be, for example, an FPC (flexible printed circuit board) that includes a conductor for each busbar 10.

[0025] The conductive module 1 includes a thermistor 30 that detects the surface temperature of the battery cell BC (FIGS. 1 to 4).

[0026] The thermistor 30 comprises a columnar body 31 and a temperature measuring unit 32 attached to the tip of the body 31 (FIGS. 2 to 4). The thermistor 30 detects the surface temperature of the battery cell BC using the temperature measuring unit 32 that is in contact with the battery cell BC. The thermistor 30 also has two electric wires 33 that electrically connect it to the battery monitoring unit (FIGS. 2 to 4). Note that the thermistor 30 may also have, for example, an FPC (flexible printed circuit board) or an FFC (flexible flat cable) instead of the two electric wires 33. The thermistor 30 shown here has a columnar body 31. The conductive module 1 shown here has a plurality of thermistors 30.

[0027] The conductive module 1 includes a housing member 40 (FIGS. 1 to 4) that houses the bus bar 10, the wiring component 20, and the thermistor 30. The housing member 40 is molded from an insulating material such as synthetic resin.

[0028] The accommodating member 40 has busbar accommodating chambers 41 for accommodating busbars 10, each of which is provided for each of the busbars 10, and has busbar receptacles 40A in which wiring components 20 are routed and which are held by the battery module BM (FIG. 1). The accommodating member 40 also has thermistor holders 40B for holding thermistors 30 (FIGS. 1 to 4). The accommodating member 40 shown here is a single member in which the busbar receptacle 40A and thermistor holder 40B are integrally molded. However, the accommodating member 40 may also have the busbar receptacle 40A and thermistor holder 40B molded as separate members, and a connecting mechanism for connecting the busbar receptacle 40A and thermistor holder 40B (not shown).

[0029] The thermistor holder 40B has a base 42 that is disposed opposite the restraining member BR (FIGS. 1 to 4). The base 42 extends between one end and the other end of the flat plate portion BRa of the restraining member BR in the extending direction, and is disposed opposite the flat plate portion BRa. The base 42 shown here is formed in a rectangular flat plate shape.

[0030] The thermistor holder 40B is provided on the base 42 and has a thermistor holder 50 for holding the thermistor 30 (FIGS. 1 to 4). The thermistor holder 40B is provided with a thermistor holder 50 for each thermistor 30.

[0031] The thermistor holder 50 is formed in the base 42 and has an insertion hole 51 into which the thermistor 30 is inserted (FIGS. 2 to 4). The insertion hole 51 is formed as a circular through-hole that matches the shape of the main body 31 of the thermistor 30.

[0032] The thermistor holder 50 also has a thermistor accommodating portion 52 that protrudes cylindrically from the periphery of the insertion hole 51 toward the restraint member BR (FIGS. 2 to 4). The thermistor accommodating portion 52 protrudes cylindrically toward the flat plate portion BRa of the restraint member BR. A through-hole or notched hole-shaped locking hole BRd is formed in the flat plate portion BRa of the restraint member BR at a position facing the insertion hole 51 (FIGS. 1, 3, and 4). Here, a circular through-hole-shaped locking hole BRd is formed in each thermistor holder 50. The thermistor accommodating portion 52 is inserted into the locking hole BRd of the restraint member BR.

[0033] The thermistor accommodating portion 52 has a pair of notches 52a arranged opposite each other in a direction perpendicular to the cylindrical axis (FIG. 2). The thermistor holder 50 has first locking portions 53 that protrude from the periphery of the insertion hole 51 at the respective notches 52a, and that, when the bus bar receiver 40A is held in the battery module BM, have claw portions 53a inserted into the locking holes BRd that lock onto the periphery of the locking holes BRd to hold the bus bar receiver 40A in the restraining member BR (FIGS. 2 and 3). The first locking portions 53 have cantilever-shaped flexible piece portions 53b that are flexible and deformable in the radial direction of the thermistor accommodating portion 52, and the claw portions 53a protrude from the free ends of the flexible piece portions 53b toward the outside in the radial direction of the thermistor accommodating portion 52 (FIGS. 2 and 3).

[0034] In this thermistor holder 50, when the busbar receiver 40A is held in the battery module BM, the thermistor receiving portion 52 and the pair of first locking portions 53 are inserted into the locking holes BRd of the restraining member BR. At this time, the claws 53a of the first locking portions 53 receive force from the periphery of the locking holes BRd, causing the flexible pieces 53b to bend radially inward. When the claws 53a exit the locking holes BRd, the flexible pieces 53b are released from their original state. Accordingly, the claws 53a are able to catch on the periphery of the locking holes BRd. When the thermistor receiving portion 52 is about to come off the locking holes BRd, it is locked onto the periphery of the locking holes BRd. This allows the thermistor holder 50 to be held by the restraining member BR, thereby holding the thermistor holder 40B to the restraining member BR.

[0035] The thermistor holder 50 also has a pair of second locking portions 54 that protrude from the periphery of the insertion hole 51 in the opposite direction to the thermistor housing portion 52 and lock the thermistor 30 housed in the thermistor housing portion 52 (FIGS. 2 to 4). The pair of second locking portions 54 are disposed opposite each other in a direction perpendicular to the cylindrical axis of the thermistor housing portion 52. Each second locking portion 54 has claw portions 54a that protrude toward the opposing second locking portion 54 and partially cover the outer periphery of the insertion hole 51 (FIGS. 2 to 4). Therefore, the pair of second locking portions 54 are formed such that the distance between the respective claw portions 54a is wider than the distance between the main body 31 of the thermistor 30.

[0036] When the thermistor 30 is in the fully accommodated position in the thermistor accommodating section 52, the claws 54a of the second locking sections 54 lock onto the insertion hole 51 side, thereby pressing the temperature measuring section 32 against the surface of the battery cell BC. The thermistor 30 has locked sections 34 that lock onto the claws 54a of the second locking sections 54 when in the fully accommodated position (FIGS. 2 to 4). The locked sections 34 protrude from each second locking section 54. When the thermistor accommodating section 52 is in the fully accommodated position, the locked sections 34 are positioned closer to the insertion hole 51 than the claws 54a of the second locking sections 54, and when the locked sections 34 are locked onto the claws 54a of the second locking sections 54 when in the fully accommodated position, the temperature measuring section 32 protruding from the thermistor accommodating section 52 is pressed against the surface of the battery cell BC.

[0037] Here, the locked portion 34 may protrude from, for example, the outer peripheral wall surface of the main body 31 of the thermistor 30, or may be formed as part of a synthetic resin member separate from the thermistor 30, and this member may be assembled to the main body 31 so as to be provided as if it were part of the thermistor 30. Here, the example shows a locked portion 34 made of synthetic resin that protrudes in a unilateral manner from the outer peripheral wall surface of the main body 31.

[0038] Between the thermistor 30 and the thermistor holder 50, either the locked portion 34 or the second locking portion 54 is made elastically deformable, and the force generated by this elastic deformation is used to press the temperature measuring portion 32 against the surface of the battery cell BC.

[0039] For example, the locked portion 34 is formed as an elastically deformable portion that is elastically deformable. This locked portion 34 is locked by the second locking portion 54 with the temperature measuring portion 32 in contact with the surface of the battery cell BC, and elastically deforms. As a result of this elastic deformation, the second locking portion 54 receives a reaction force from the second locking portion 54 against the pressing force applied to the second locking portion 54, and presses the temperature measuring portion 32 against the surface of the battery cell BC.

[0040] Furthermore, for example, the second locking portion 54 is formed as an elastically deformable portion. In this case, the second locking portion 54 has a cantilever-shaped flexible piece that can be flexibly deformed in the radial direction of the thermistor accommodating portion 52, and a claw portion 54a protrudes from the free end of this flexible piece toward the radially inward direction of the thermistor accommodating portion 52 (not shown). The second locking portion 54 locks the locked portion 34 and elastically deforms when the temperature measuring portion 32 is in contact with the surface of the battery cell BC, and the reaction force associated with this elastic deformation acts on the locked portion 34, pressing the temperature measuring portion 32 against the surface of the battery cell BC.

[0041] As mentioned above, the thermistor 30 includes the electric wires 33, etc., which must be routed toward the battery monitoring unit. For example, when the electric wires 33, etc. are routed along the restraining member BR, the electric wires 33, etc. must be secured to the restraining member BR with a holder such as a clip. However, in this case, a through-hole for securing the holder must be provided in the restraining member BR separately, which is undesirable in terms of maintaining the strength of the restraining member BR. Therefore, the thermistor holder 40B may be provided with a holding portion (not shown) that holds the electric wires 33, etc. along the routing path.

[0042] As described above, the conductive module 1 of this embodiment corresponds to a combination of the bus bar 10, bus bar receiver 40A, etc., which correspond to conventional conductive modules, with the thermistor 30 and the thermistor holder 40B. In such a conductive module 1, the thermistor holder 40B with the thermistor 30 attached can be assembled to the restraining member BR at the same time as the bus bar receiver 40A is assembled to the battery module BM. Simply by assembling the thermistor holder 40B side of this conductive module 1 to the restraining member BR, the temperature measuring portion 32 of the thermistor 30 can be pressed against the surface of the battery cell BC. Therefore, the conductive module 1 of this embodiment simplifies the installation of the thermistor 30.

[0043] Furthermore, the conductive module 1 of this embodiment can press the temperature measuring part 32 of the thermistor 30 against the surface of the battery cell BC by locking the locked part 34 of the thermistor 30 with the second locking part 54 of the thermistor holder 50. Therefore, the conductive module 1 of this embodiment can maintain contact between the temperature measuring part 32 and the battery cell BC, thereby stabilizing the temperature measurement results by the thermistor 30.

[0044] For example, in the conductive module 1 of this embodiment, either the locked portion 34 or the second locking portion 54 is elastically deformable, and the force generated by this elastic deformation is used to press the temperature measuring portion 32 against the surface of the battery cell BC. Therefore, this conductive module 1 can maintain contact between the temperature measuring portion 32 and the battery cell BC using this force, thereby stabilizing the temperature measurement results from the thermistor 30.

[0045] Furthermore, this conductive module 1 can absorb various tolerance variations, such as dimensional tolerance variations of the thermistor 30, dimensional tolerance variations of the accommodating member 40, and assembly tolerance variations of the thermistor 30 and accommodating member 40, and can press the temperature measuring unit 32 against the surface of the battery cell BC, thereby stabilizing the temperature measurement results obtained by the thermistor 30.

[0046] Furthermore, the conductive module 1 of this embodiment has a thermistor 30 disposed between the two electrode terminal groups BCc. Here, in the battery module BM, air is stagnant in the space between the two electrode terminal groups BCc. Therefore, the conductive module 1 of this embodiment detects the surface temperature of the battery cells BC in the space where the air is stagnant, minimizing errors in the temperature measurement results of the thermistor 30 when the environmental temperature inside the battery pack changes. Therefore, in this respect as well, the conductive module 1 of this embodiment can stabilize the temperature measurement results of the thermistor 30.

[0047] In this way, the conductive module 1 of this embodiment can simplify the installation work of the thermistor 30 and stabilize the temperature measurement results at the same time.

[0048] Here, if the thermistor holder 40B is molded as a separate member from the bus bar receptacle 40A, a temperature measuring device 5 can be configured that includes the thermistor holder 40B and thermistor 30 (FIGS. 1 to 4). In this case, the combination of the bus bar 10, the wiring component 20, and the bus bar receptacle 40A may be defined as a conductive module.

[0049] By simply assembling this temperature measuring device 5 to the restraining member BR, the temperature measuring portion 32 of the thermistor 30 can be pressed against the surface of the battery cell BC. Therefore, this temperature measuring device 5 simplifies the installation work of the thermistor 30. Furthermore, this temperature measuring device 5 can achieve the same effects as the conductive module 1 described above. Therefore, this temperature measuring device 5 can simultaneously simplify the installation work of the thermistor 30 and stabilize the temperature measurement results. [Explanation of symbols]

[0050] 1 Conductive Module 5 Temperature measuring device 10 Bus Bar 20 Wiring parts 30 Thermistor 32 Temperature measuring unit 34 Locked part 40 Storage member 40A bus bar holder 40B Thermistor Holder 41 Bus Bar Containment Room 42 Base 50 Thermistor holder 51 Insertion hole 52 Thermistor housing 52a Notch 53 First locking portion 53a Claw part 54 Second locking part 54a Claw part BC battery cell BCb electrode terminal BM battery module BR restraining member BRd Locking hole

Claims

1. a bus bar that is physically and electrically connected to the electrode terminals of the battery cells that constitute the battery module; a wiring component that electrically connects the bus bar to a battery monitoring unit that monitors the battery state of the battery cell; a thermistor that detects the surface temperature of the battery cell using a temperature measuring part that is in contact with the battery cell; a housing member that houses the bus bar, the wiring component, and the thermistor; Equipped with the accommodating member includes a bus bar accommodating chamber for accommodating the bus bar, the bus bar accommodating chamber being provided for each of the plurality of bus bars, the wiring components being routed therein, and a bus bar accommodating device for holding the bus bar in the battery module; and a thermistor holder for holding the thermistor, the thermistor holder has a base portion that is disposed opposite to the restraining members of the plurality of battery cells that constitute the battery module, and a thermistor holder that is provided on the base portion and holds the thermistor, the thermistor holder has: an insertion hole formed in the base and into which the thermistor is inserted; a thermistor accommodating portion that protrudes cylindrically from a peripheral portion of the insertion hole toward the restraining member, and that has a pair of notches that are inserted into locking holes that are through-hole shaped or notched hole shaped and provided in the restraining member and that are arranged opposite to each other in a direction perpendicular to a cylindrical axis; first locking portions that protrude from the peripheral portion of the insertion hole at each of the notches and that, when the busbar receiver is held in the battery module, lock claws that are inserted into the locking holes with the peripheral portions of the locking holes to hold the busbar receiver in the restraining member; and a pair of second locking portions that protrude from the peripheral portion of the insertion hole in a direction opposite to the thermistor accommodating portion and lock the thermistor accommodated in the thermistor accommodating portion, The thermistor is provided in a protruding state for each of the second locking portions, and is positioned closer to the insertion hole than the claw portion of the second locking portion when in the fully accommodated position in the thermistor accommodating portion, and has an engaging portion that presses the temperature measuring portion protruding from the thermistor accommodating portion against the surface of the battery cell by engaging with the claw portion of the second locking portion when in the fully accommodated position.

2. The conductive module of claim 1, wherein the engaging portion is formed as an elastically deforming portion that is elastically deformable, and is engaged with the second engaging portion while the temperature measuring portion is in contact with the surface of the battery cell, thereby elastically deforming, and receives a reaction force from the second engaging portion against the pressing force applied to the second engaging portion as a result of this elastic deformation, thereby pressing the temperature measuring portion against the surface of the battery cell.

3. The conductive module of claim 1, wherein the second engaging portion is formed as an elastically deformable portion that engages the engaged portion and elastically deforms when the temperature measuring portion is in contact with the surface of the battery cell, and the reaction force associated with this elastic deformation acts on the engaged portion, thereby pressing the temperature measuring portion against the surface of the battery cell.

4. A plurality of the thermistors are provided, 4. The conductive module according to claim 1, wherein the thermistor holder is provided with the thermistor holder for each of the thermistors.

5. 4. The conductive module according to claim 1, wherein the housing member is a single member in which the bus bar housing and the thermistor holder are integrally molded.

6. 4. The conductive module according to claim 1, wherein the accommodating member includes the bus bar accommodating device and the thermistor holder molded as separate members, and a connecting mechanism that connects the bus bar accommodating device and the thermistor holder.

7. a thermistor that detects the surface temperature of a battery cell that constitutes a battery module using a temperature measuring unit that is in contact with the battery cell; a thermistor holder for holding the thermistor; Equipped with the thermistor holder has a base portion that is disposed opposite to the restraining members of the plurality of battery cells that constitute the battery module, and a thermistor holder that is provided on the base portion and holds the thermistor, the thermistor holder has an insertion hole formed in the base and into which the thermistor is inserted; a thermistor accommodating portion that protrudes cylindrically from the periphery of the insertion hole toward the restraining member and is inserted into a through-hole-shaped or notched hole-shaped locking hole provided in the restraining member and is provided with a pair of notches that are arranged opposite to each other in a direction perpendicular to the cylindrical axis; first locking portions that protrude from the periphery of the insertion hole at each of the notches and lock claws inserted into the locking holes with the periphery of the locking hole to hold the thermistor in the restraining member; and a pair of second locking portions that protrude from the periphery of the insertion hole in a direction opposite to the thermistor accommodating portion and lock the thermistor accommodated in the thermistor accommodating portion, The thermistor is provided in a protruding state for each of the second locking portions, and is positioned closer to the insertion hole than the claw portion of the second locking portion when in the fully accommodated position in the thermistor accommodating portion, and has an engaging portion that presses the temperature measuring portion protruding from the thermistor accommodating portion against the surface of the battery cell by engaging with the claw portion of the second locking portion when in the fully accommodated position.

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