JP5242237B2 - Temperature detection module mounting structure - Google Patents

Description

  The present invention relates to a temperature detection module mounting structure in which a temperature detection module for detecting the temperature of each battery is assembled to a battery of an electric vehicle or the like together with a bus bar module.

  FIG. 10 shows one form of a conventional temperature detection module mounting structure (see Patent Document 1).

  This temperature detection module 61 is applied to a high voltage battery 62 of an electric vehicle or a hybrid car, and is arranged in a strip shape along the side surface of each battery row 63 arranged horizontally, and each temperature sensor connected to a lead wire 65. 66, the surface temperature of each cylindrical unit cell 64 forming the battery array 63 is detected.

  The temperature sensor 66 is a PTC thermistor. The temperature sensor 66 contacts the cell 64 via a heat transfer sheet (not shown). Both ends of the lead wire 65 are connected to a temperature detection device (not shown).

  FIG. 11 shows another embodiment of the conventional temperature detection module mounting structure (see Patent Document 1). A bottomed cylindrical resin portion 72 and heat transfer are provided on the upper surface 78a of each rectangular battery 78 arranged vertically. The temperature sensor 75 is brought into close contact with the metal body 73 and the heat transfer sheet 74. The temperature sensor 75 is pressed by a resin hook 76.

  The resin part 72 is a part of a case 77 that partitions each battery 71. In addition to the above, Patent Document 1 also describes that the temperature sensor 75 is arranged on the upper surface of the battery 78 through only the resin portion 72. The temperature sensor 75 is connected to a temperature detection device (not shown) via a lead wire.

  FIG. 12 shows one form of a conventional bus bar module mounted on a battery for an electric vehicle (including a hybrid car) (see, for example, Patent Document 2).

  This bus bar module (battery connection plate) 151 is for connecting a plurality of rectangular batteries 152 in series, and is arranged vertically on the front and rear electrode sides of the plurality of batteries 152 arranged in parallel. Is done.

Each bus bar module 151 has a rectangular bus bar 155 made of conductive metal in a plurality of openings 154 of an insulating resin plate 153, each bus bar 155 has two holes 156, and two adjacent batteries 152. Male screw type + and-electrodes 157 and 158 are inserted into the hole 156 and tightened with nuts to be connected to the bus bar 155.
Japanese Patent Laid-Open No. 2001-91363 (FIGS. 3, 8 to 9) JP 2000-333343 A

  However, in the conventional temperature detection module mounting structure shown in FIG. 10, the temperature sensors 66 are easily displaced in position because they are arranged horizontally while being bent along the side surfaces of the batteries 64. There was concern that it would be difficult to measure the temperature at the specified position. Further, in the conventional temperature detection module mounting structure shown in FIG. 11, the temperature measurement position of the battery 78 is defined by the cylindrical resin part 72 and the hook 76 integral with the case 77. There is a concern that the work of inserting the heat transfer metal member and the temperature sensor one by one is troublesome and the assembling workability of the battery module 79 is poor.

  In the temperature detection module mounting structure of FIG. 10, the temperature sensor 66 is sandwiched between adjacent battery rows 63 so that the temperature sensor 66 is in close contact with the surface via a heat transfer sheet (not shown). There is a concern that the force for pressing the temperature sensor 66 against the battery 64 is likely to vary, and the temperature sensor 66 is damaged when pressed strongly, and the accuracy of temperature detection may be lowered when touched weakly. was there. There is also a concern that it is difficult to arrange the temperature sensors 66 at equal intervals in the longitudinal direction of the lead wire 65 with high positional accuracy. Further, in the temperature detection module mounting structure of FIG. 11, since the temperature sensor 75 is disposed through the resin portion 72 and the heat transfer metal body 73, there is a concern that the temperature detection accuracy may be lowered. there were.

  In view of the above points, the present invention makes it possible to easily and reliably perform the placement and placement of each temperature sensor with respect to each battery of the battery with good workability, and to improve the mounting position accuracy of each temperature sensor with respect to each battery. Another object of the present invention is to provide a temperature detection module mounting structure that can increase the temperature detection accuracy.

In order to achieve the above object, a temperature detection module mounting structure according to claim 1 of the present invention is provided to each bus bar for connecting each battery of the battery in series, a case in which each bus bar is disposed, and the case. A bus bar module having positioning and locking portions , a flat circuit body, a cover for positioning the flat circuit body with positioning means, and a connection to the flat circuit body corresponding to the position of each battery. A temperature detection module including each temperature sensor fixed and each positioning and locking portion provided on the cover corresponding to the position of each positioning and locking portion of the case, and each of the cases while engaging the respective positioning and locking portion of the cover to the positioning and locking part, constitutes an assembly by assembling the temperature sensing module to said bus bar module, the respective bar While connecting the bar to the respective battery, and at the same time assembling the bus bar module the assembly to the battery, the temperature sensor of the flat circuit body is characterized in that it is arranged in the respective cell.

  With the above configuration, the temperature detection module is first assembled to the bus bar module, and thereby the temperature detection module is positioned on the bus bar module. The bus bar module is then assembled to the battery and the bus bar module is positioned on the battery. Since the temperature detection module is previously positioned on the bus bar module, the temperature detection module is substantially positioned on the battery at the same time as the bus bar module is positioned on the battery.

In addition, the temperature detection module can be assembled to the bus bar module by engaging the positioning / locking portion of the temperature detection module with the positioning / locking portion of the bus bar module. It is fixed while being positioned.

The temperature detection module mounting structure according to claim 2 is the temperature detection module mounting structure according to claim 1, wherein the case includes each frame wall that houses and locks each bus bar, and the positioning and locking portion. A rectangular cylindrical wall portion, and the cover has a frame portion as the positioning and locking portion that is formed to protrude from an upper end of the side wall.

Mounting structure of the temperature detection module according to claim 3 is the mounting structure of the temperature detection module according to claim 1 or 2, wherein said temperature detection module, and the flat circuit member-elongate flexible, the flat circuit Each temperature sensor disposed on the surface of each protrusion of the body opposite to the surface in contact with each battery , and the flat circuit body are routed to expose each temperature sensor portion of each protrusion . And the cover having each opening .

  With the above-described configuration, each temperature sensor portion of the flat circuit body is exposed from the cover and contacts each battery of the battery to detect the temperature. The cover positions and holds the flat circuit body, thereby defining the position of each temperature sensor. The flat circuit body and the cover constitute a long (substantially belt-like) temperature detection module, which facilitates handling and assembly to the bus bar module.

  According to the first aspect of the present invention, since the temperature detection module is automatically positioned on the battery based on the position of the bus bar module, it is not necessary to assemble the temperature detection module while positioning the battery on the battery one by one. The assembly of the temperature detection module is easily and reliably performed, and the assembly and positioning of the temperature detection module are improved. Thereby, the assembly workability | operativity of battery modules, such as an electric vehicle, improves.

Also , since the temperature detection module is accurately positioned on the bus bar module at the same time that the temperature detection module is assembled to the bus bar module, the position of the temperature detection module relative to the battery is based on the bus bar module when the bus bar module is assembled to the battery. Accurately defined. Thereby, the temperature of the required location (temperature measurement designation | designated part) of a battery can be measured correctly, and temperature detection accuracy improves.

  According to the third aspect of the present invention, the position of each temperature sensor is defined by assembling the flat circuit body to the cover, and the temperature detection module is assembled to the bus bar module in that state, so The position is accurately defined, and the position of each temperature sensor with respect to each battery is accurately defined by assembling the bus bar module to the battery, thereby improving the temperature detection accuracy. In addition, since the temperature sensors are collectively arranged on the bus bar module at the same time that the cover portion of the temperature detection module is assembled (locked) to the bus bar module, the arrangement workability of the temperature sensors with respect to the bus bar module is improved.

  1 to 5 show an embodiment of a temperature detection module mounting structure according to the present invention.

  As shown in FIG. 1, the temperature detection module mounting structure is characterized in that a bus bar module 50 is assembled integrally with a temperature detection module 1 on a battery 8 including a plurality of batteries 9. The temperature detection module 1 is assembled to the bus bar module 50, and the bus bar module 50 is assembled to the battery 8. At the same time, the temperature detection module 1 is positioned and arranged on the battery 8.

  In FIG. 1, the batteries 9 (FIG. 5) are arranged in a row, but actually, they are arranged in two rows on the left and right, and one temperature detection module 1 is arranged for each row of the batteries 9. In FIG. 1, reference numeral 48 denotes an outer case of the battery 8, and reference numeral 69 denotes a claw portion that protrudes from the upper portion of the outer case 48 and locks an insulating upper cover or the like.

  As shown in FIG. 2, a locking frame portion 31 protrudes from the upper end of the side wall of the lower cover 2 of the temperature detection module 1, and the vertical wall portion 52 of the insulating resin case 51 of the bus bar module 50 A fixing portion (positioning and locking portion) 53 for inserting and engaging the frame portion 31 is integrally provided.

  As shown in FIGS. 2, 3 (a) and 3 (b), the fixing portion 53 includes a wide wall portion 53 a on the front side, a narrow wall portion 53 b on both sides, and a substantially cross-sectional cross-section provided on the back side of the wall portion 53 a. The U-shaped wall portion 53c (FIG. 3), and a locking claw portion 53d (FIG. 3) provided at the inner lower portion of the wall portion 53a. Each wall part 53a-53c comprises a rectangular cylindrical wall part, and the space 53e which inserts the frame part 31 of the temperature detection module 1 in the rectangular cylindrical wall part is formed.

  The claw portion 53d can be bent into an arm shape integrally with a part of the wall portion 53a by vertical slits on both sides provided in the wall portion 53a. The locking claw 53 d enters and engages with the upper half of the hole 31 a in the frame 31. The claw 33 of the resin portion 32 on the battery side in FIG. 2 engages with the lower half portion of the hole portion 31a of the frame portion 31. The vertical wall portion 52 of FIG. 3 is integrally provided with a horizontal substrate portion 81 on the side opposite to the frame portion 57, and a pair of left and right flexible frame pieces 80 are suspended from the substrate portion 81. 80 is positioned or locked on top of the battery 8.

  As described above, the frame portion 31 is inserted into and engaged with the fixing portion 53, so that the temperature detection module 1 is fixed to the bus bar module 50. In this state, the assembly 68 of the temperature detection module 1 and the bus bar module 50 ( 5) is attached to the battery 8.

  In FIG. 2, reference numeral 32 denotes a horizontal resin portion at the top of the battery 8, reference numeral 33 denotes a temperature detection module locking claw projecting on both sides of the resin portion 32, and reference numeral 49 denotes each battery of the battery 8. 9 shows the temperature detection part at the top.

  The temperature detection module 1 in FIG. 2 is disposed below the frame wall 57 and the vertical wall portion 52 of the bus bar module 50. As shown in FIG. 3, the lower surface of each connecting wall 70 between the frame wall 57 and the wall portion 52 is located in contact with or close to the upper surface of the upper cover 3 of the temperature detection module 1. Each temperature sensor portion of the flat circuit body 4 of the temperature detection module 1 in FIG. 2 is in contact with the temperature detecting portions 49 arranged at an equal pitch on the battery 8 side.

  As shown in FIG. 1, a portion 54 for receiving a conductive metal terminal (not shown) is provided at the end of the lower cover 2 of the temperature detection module 1, and the receiving portion 54 is also connected to the bus bar module 50 by an upward claw 55. It is locked to the protrusion 56 of the case 51. The terminal is connected to a temperature detection device (not shown) via a lead wire (not shown).

  As shown in FIG. 2, the bus bar module 50 includes at least a case 51 made of an insulating resin having a plurality of frame walls 57 in parallel, and a bus bar 58 made of a conductive metal plate accommodated and locked in each frame wall 57. Has been. The basic configuration and operation of the bus bar module 50 are the same as the conventional one. As shown in FIG. 4, the two holes 59 of the bus bar 58 are inserted and engaged with the bolt-shaped electrode columns 47 of the adjacent batteries 9, and the bus bar 58 is tightened with a nut (not shown) screwed into the electrode columns 47. Thus, the batteries 9 are connected in series. A terminal 60 for voltage detection is connected to the bus bar 58 together. Each frame wall 57 of the bus bar module 50 is connected by a flexible hinge 67.

  As shown in FIG. 5, the assembly 68 of the bus bar module 50 and the temperature detection module 1 is assembled to the battery 8 in a state where the frame portion 31 of the temperature detection module 1 is engaged with the fixing portion 53 of the bus bar module 50. Each temperature sensor 5 provided on the flexible flat circuit body 4 of the module 1 is pressed against the upper surface 9 a of each rectangular vertical battery 9 of the battery 8 through the thin flat circuit body 4.

  Further, the upper end of the positioning projection 20 of the lower cover 2 of the temperature detection module 1 abuts on the lower end of the case 51 of the bus bar module 50 to define the vertical position. In FIG. 5, reference numeral 67 denotes a hinge of the bus bar module 50, 49 denotes a convex temperature detecting portion at the top of the battery 9, and 45 denotes a vertical insulating resin plate between the batteries.

  2 are positioned on the same straight line in the horizontal direction, and each temperature sensor 49 and each temperature sensor portion 5 of the flat circuit body 4 are aligned to each other, and each electrode column is aligned. 47, each boss-like wall portion 34 of the upper cover (FIG. 6), each projection 20 in the wall portion 34, the frame portion 31 for locking the bus bar module 50, and the fixing portion 53 are on the same horizontal line. To position.

  A protector portion (not shown) for inserting an electric wire is integrally provided outside the frame wall 57 of the bus bar module 50 shown in FIGS. 2 and 3, and a flexible frame piece (not shown) provided on the protector portion. Is engaged with and locked to a part of the claw portion 69 of the outer case of the battery 8. In this locked state, the electrode column 47 is nut-tightened to the bus bar 58.

  Below, one Embodiment of the temperature detection module 1 is described using FIGS. 6-9.

  The temperature detection module 1 includes a synthetic resin-made insulating long lower cover (first or first cover) 2 and a synthetic rubber-made insulating long upper cover (second or second cover). 3), a long flexible flat circuit body (hereinafter referred to as a flat circuit) that is disposed between the lower cover 2 and the upper cover 3 and is bent in a substantially wave shape that partially protrudes from the lower opening 6 (opening) of the lower cover 2. 4) and a temperature sensor 5 arranged on the protruding portion 7 of the flat circuit body 4.

  As shown in FIG. 6, the downward protruding portion 7 of the flat circuit body 4 protruding from the lower opening 6 of the lower cover 2 is flat on the upper surface 9 a of each rectangular battery (cell) 9 of the battery (power supply device or assembled battery) 8. The circuit body 4 is pressed firmly by the elastic force of the circuit body 4 and the elastic force of the rubber upper cover 3 so that the circuit body 4 adheres securely.

  The temperature sensor 5 is fixed to the back surface (inner surface) of the projecting portion 7 of the flat circuit body 4, and the temperature sensor 5 is pushed by the downward projecting portion 10 of the upper cover 3 so that the thin flat circuit body 4 is placed on the upper surface 9 a of the battery 9. Contact through. In FIG. 6, for convenience, the flat circuit body 4 is shown at a position before being pressed, and the battery 9 is shown at a position after being pressed. In practice, the lower surface of the protrusion 7 of the flat circuit body 4 is placed on the upper surface 9 a of the battery 9. While the (surface) 7a is in contact, the protruding portion 7 bends upward, and the temperature sensor 5 on the back side of the protruding portion is pressed against the protruding portion 10 of the elastic upper cover 3 to bend the protruding portion 10 upward.

  As shown in FIG. 7, the lower cover 2 is configured so that an accommodating portion 13 including left and right side wall portions 11 having an inverted trapezoidal shape and front and rear wall portions 12 having an inclined shape is connected to the front and rear (longitudinal) direction via connecting portions 14 and 15. A plurality of them are continuously connected in a strip shape in series. A circuit arrangement space 16 (FIG. 6) is formed by being surrounded by the front, rear, left and right walls 11, 12, and the space 16 communicates with a rectangular lower opening 6 and an upper opening 17, and the upper opening 17 is in the longitudinal direction of the cover. It continues to the insertion space 18 (FIG. 6).

  The left and right wall portions 11 protrude above the front and rear wall portions 12 and the connecting portions 14 and 15, and the connecting portions 14 and 15 are integrally connected to the front and rear wall portions 12. The lower opening 6 is narrower in the front-rear direction than the upper opening 17. The front, rear, left, and right directions in the specification are for convenience of explanation.

  A protrusion 19 for positioning the protrusion 7 of the flat circuit body 4 is provided on the lower inner surface of the left and / or right side wall 11, and the protrusion 7 climbs over the protrusion 19 and protrudes downward, preventing upward return. Is done. In this state (not yet attached to the battery side), the tip (lower end) surface 10a of the protruding portion 10 of the elastic upper cover 3 is positioned close to or in contact with the temperature sensor 5 as shown in FIG.

  One connecting portion 14 of the lower cover 2 is a horizontal plate-like connecting wall, and the other connecting portion 15 has a flexible portion 22. As shown in FIG. 8, each of the side walls 11 adjacent to the front and rear of the lower cover 2 is connected by a thin flexible connecting piece (flexible portion) 22 that is substantially U-shaped in side view. The connecting piece 22 is bent horizontally at the lower end side (the horizontal portion at the lower end side is indicated by reference numeral 22a) and continues to the central horizontal plate portion 23 in plan view.

  The connecting piece 22 continues to the side wall 11 at the horizontal portion 22b on the upper end side. A gap 24 is formed between the plate portion 23 and the inclined front and rear wall portions 12. Reference numeral 6 denotes a rectangular lower opening. As shown in FIG. 7, a short cylindrical projection 20 for positioning a circuit body is provided on the plate portion 23 and one of the connecting portions (connecting walls) 14 and 15. Each protrusion 20 engages with each hole (positioning means) 21 of the flat circuit body 4, whereby the flat circuit body 4 is accurately positioned in the longitudinal direction. The displacement of the lower cover 2 in the longitudinal direction with respect to the battery 8 (FIG. 6) is absorbed by the flexible connecting portion 15. The connecting portion 15 can absorb not only the longitudinal direction but also the displacement in the bending and twisting directions.

  As shown in FIG. 7, positioning and locking projections (locking means) 26 on both sides of the upper cover 3 are formed on a horizontal elongated wall 25 that connects the front and rear inverted trapezoidal side walls 11 on both the left and right sides of the connecting wall 14. A hole (locking means) 28 for engaging with 27 is provided. A long and narrow wall portion 25 on the upper side of one hole portion 28 is provided with a positioning projection 30 that enters a groove 29 between one pair of projections 27 of the upper cover 3.

  As shown in FIG. 7, the flat circuit body 4 is bent in a substantially trapezoidal wave shape. The bending operation is performed when the belt-like flat circuit body 4 having a flat initial shape is assembled to the lower cover 2. As shown in FIG. 7, the flat circuit body 4 can be bent in a wave shape in advance and then assembled to the lower cover 2.

  The top surface 34 of the upper crest portion of the flat circuit body 4 is formed wider in the front-rear direction than the lower trough portion, that is, the bottom surface 7 a of the protruding portion 7. A circular hole 21 for positioning is provided in a horizontal wall portion (substitute with reference numeral 34) forming the top surface, and a temperature sensor is provided in a horizontal wall section (substitute with reference numeral 7a) forming the bottom of the lower projection 7 5 is provided. The corrugated flat circuit body 4 is constituted by the upper and lower wall portions 34, 7a and the front and rear inclined wall portions 7b connecting the upper and lower wall portions 34, 7a in the longitudinal direction. The temperature sensor 5 is, for example, a PTC thermistor, and a rectangular one is connected and fixed to the circuit of the flat circuit body 4 by soldering.

As shown in FIG. 6, the upper wall portion 34 of the flat circuit body 4 is in contact with the upper surfaces of the connecting portions 14 and 15 of the lower cover 2 and is sandwiched between the lower surface of the upper cover 3. The inclined walls 7 b and 7 b before and after the flat circuit body 4 are in contact with the inner surfaces of the inclined walls 12 before and after the lower cover 2.

  As shown in FIG. 9 as an example of the circuit configuration of the flat circuit body 4, two printed circuits 36, 36 ′ are formed on a thin sheet 35 made of insulating resin, and one circuit 36 extends in the longitudinal direction of the insulating sheet 35. The other circuit 36 ′ is connected to the electrodes 5a of the temperature sensors 5 in series. Positioning holes 21 are provided in the insulating sheet 35 between the temperature sensors 5. Each circuit 36, 36 ′ is connected to a circuit on the temperature detection device (not shown) side through a metal terminal (not shown) at a terminal portion of the insulating sheet 35.

As shown in FIG. 7, the upper cover 3 is composed of each protruding portion 10 and a horizontal plate-like wall portion 37 that connects the protruding portions 10 to each other. The protruding portion 10 is rectangular and hollow, Front and rear wall portions 38, 39 and a bottom wall portion 40 are provided, and a slit-like hole portion 41 (not hatched in FIG. 6) is provided at the center of the front and rear wall portions 38, following the front and rear ends of the bottom wall 40. Part) is formed, and is easily crushed in the vertical direction (compression direction). The bottom wall 40 contacts the temperature sensor 5 of the flat circuit body 4. A reinforcing frame portion 42 is formed to protrude from the upper end of the protruding portion 10.

  A circular hole (positioning means) 43 that engages with the positioning protrusion 20 of the lower cover 2 is provided at the center of each plate-like wall portion 37, and the periphery of the hole 43 protrudes in an annular shape and is reinforced. (The annular portion is indicated by reference numeral 44). Protrusions 26 and 27 for positioning with respect to the lower cover 2 are provided on the left and right ends of the plate-like wall portion 37.

  As shown in FIG. 6, the flat circuit body 4 is bent and wired along the lower cover 2, and the tip portion (the portion having the temperature sensor 5 on the inside) 7 a of the projecting portion 7 of the flat circuit body 4 is arranged on the lower cover 2. The front end portion 7 a protrudes outward from the lower opening 6 of the housing portion 13, is prevented from returning backward by a horizontal projection 19 in the housing portion 13, and the upward positioning projection 20 of the lower cover 2 is a hole portion 21 of the flat circuit body 4. And the flat circuit body 4 is positioned.

  Next, the upper cover 3 is assembled to the lower cover 2 from above the flat circuit body 4, and the protruding portion 7 of the upper cover 3 is close to the temperature sensor 5 in the protruding portion 7 of the flat circuit body 4 in the housing portion 13 of the lower cover 2. The positioning projections 20 of the connecting portions 14 and 15 of the lower cover 2 enter and engage with the holes 43 of the plate-like wall portion 37 of the upper cover 3, and the plate-like wall portion 37 is connected to the connecting portions 14 and 15. The flat circuit body 4 is sandwiched between them.

  As shown in FIG. 6, the battery 8 includes vertical rectangular batteries 9 arranged in parallel in the front-rear direction, and an insulating vertical resin plate 45 arranged between the batteries 9. The upper end surface 45 a of the resin plate 45 protrudes above the upper end surface 9 a of the battery 9.

  By mounting the temperature detection module 1 on the battery 8, the protruding portion 7 of the flat circuit body 4 abuts on the upper surface 9 a of the battery 9 and flexes upward elastically, and the protruding portion 10 of the upper cover 3 is fixed to the flat circuit body 4. The temperature sensor 5 is pressed against the upper surface 9a of the battery 9 with an appropriate pressure while being elastically bent by coming into contact with the temperature sensor 5 on the inner surface of the projecting portion 7.

  The force with which the protruding portion 10 of the upper cover 3 pushes the temperature sensor 5 is the size of the gap between the temperature sensor 5 and the protruding portion 10 at the initial position, the width of the slit hole 41 of the protruding portion 10 and the plate thickness of the protruding portion 10. It is set appropriately by changing etc.

  In a state where the temperature detection module 1 is mounted on the battery 8, the upper surface 45 a of the resin plate 45 of the battery 8 is positioned opposite to the lower surfaces of the connecting portions 14 and 15 of the lower cover 2 with a gap 46 therebetween. Since the resin plate 45 and the lower cover 2 are positioned in a non-contact manner with the gap 46 therebetween, for example, generation of condensation or the like is prevented, and concerns such as a short circuit of the flat circuit body 4 or the temperature sensor 5 due to condensation are avoided. .

  In the above embodiment, the upper cover 3 is formed of an insulating rubber material. However, the upper cover 3 may be formed of an insulating synthetic resin material in the same manner as the lower cover 2 instead of the rubber material. . In this case, the protrusion 10 of the upper cover 3 can be eliminated, and the temperature sensor 5 can be pressed against the battery 9 only by the elastic force of the flat circuit body 4. Alternatively, the protruding portion 10 of the synthetic resin upper cover 3 can be made flexible by thinning or providing a slit or the like.

  Further, it is also possible to remove the upper cover 3 itself and press the temperature sensor 5 against the battery 9 only by the elastic force of the flat circuit body 4. In this case, the flat circuit body 4 is fixed by a locking means (not shown) such as a locking projection or a locking claw of the lower cover 2. A circumferential groove (not shown) for locking the peripheral edge of the hole 21 of the flat circuit body 4 may be provided on the protrusion 20 of the lower cover 2.

  Moreover, in the said embodiment, although the temperature detection module 1 was arrange | positioned on the upper surface of the battery 8, for example, the temperature detection module 1 may be arrange | positioned on the side surface of the battery 8 like the example of FIG. 10 of FIG. Is possible. Moreover, in the said embodiment, although the assembled battery 8 which assembled the some battery (cell) 9 was used as a battery (power supply device), it is also possible to apply the said temperature detection module 1 to other power supply devices. It is.

  1 to 5 is effective not only as a temperature detection module mounting structure but also as a battery module or a temperature detection module mounting method.

It is a disassembled perspective view which shows one Embodiment of the attachment structure of the temperature detection module which concerns on this invention. It is a disassembled perspective view which shows a temperature detection module, a bus-bar module, and a battery. One form of a bus-bar module is shown, (a) is a top view and (b) is a perspective view. It is a perspective view which shows the state which inserted the electrode of the battery in the bus-bar module. It is a front view which shows the state which mounted | wore the battery with the assembly of a temperature detection module and a bus-bar module. It is a longitudinal cross-sectional view which shows one Embodiment of a temperature detection module. It is a disassembled perspective view which similarly shows a temperature detection module. An example of the connection part of the cover of this temperature detection module is shown, (a) is a front view, (b) is a top view. It is a top view which shows an example of the flat circuit body of a temperature detection module. It is a top view which shows one form of the conventional temperature detection module. It is a longitudinal cross-sectional view which shows the other form of the conventional temperature detection module. It is a disassembled perspective view which shows one form of the conventional bus-bar module.

Explanation of symbols

1 Temperature detection module 2 Lower cover (cover)
3 Upper cover (cover)
4 flat circuit body 5 temperature sensor 8 battery 9 battery 31 frame part (positioning and locking part)
50 bus bar module 58 bus bar 53 fixed part (positioning and locking part)
68 Assembly

Claims (3)

Each bus bar for connecting each battery of the battery in series, a case in which each bus bar is disposed, and a bus bar module provided with each positioning and locking portion provided in the case ,
A flat circuit body, a cover for positioning the flat circuit body by positioning means, each temperature sensor connected and fixed to the flat circuit body corresponding to the position of each battery, and each positioning and positioning of the case A temperature detection module provided with each positioning and locking portion provided on the cover corresponding to the position of the locking portion,
While engaging the respective positioning and locking portion of the cover to the respective positioning and locking portion of the case, said to constitute the assembly by assembling the temperature sensing module to the bus bar module, the bus bars to each cell connected while, at the same time as assembling the bus bar module the assembly to the battery mounting structure of the temperature detection module each temperature sensor of the flat circuit body is characterized in that it is arranged in the respective cell. The positioning includes each frame wall that accommodates and locks each bus bar, and a rectangular cylindrical wall portion as the positioning and locking portion, and the cover is formed so as to protrude from an upper end of the side wall. The temperature detection module mounting structure according to claim 1, further comprising a frame portion serving as a double locking portion . The temperature detection module, and the flat circuit member-elongate flexible, and each temperature sensor disposed on the surface opposite to the surface in contact with the respective cell of each protrusion of the flat circuit body The temperature detection module according to claim 1 , further comprising: the cover having the openings through which the flat circuit body is routed to expose the temperature sensor portions of the protrusions. Construction.

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