JP5001217B2 - Temperature detection module and manufacturing method thereof - Google Patents

Description

  The present invention relates to a temperature detection module that is mounted on a battery of an electric vehicle or the like and detects the temperature of each battery, and a manufacturing method thereof.

  FIG. 7 shows an embodiment of a conventional temperature detection module (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. 8 shows another embodiment of the conventional temperature detection module (see Patent Document 1). On the upper surface 78a of each rectangular battery 78 arranged vertically, a resin portion 72, a metal body 73 for electric heating, and a heat transfer sheet. 74, the temperature sensor 75 is brought into close contact with each other. 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.
Japanese Patent Laid-Open No. 2001-91363 (FIGS. 3, 8 to 9)

  However, in the conventional temperature detection module 61 shown in FIG. 7, the temperature sensor 66 is closely attached to the surface of the battery 64 via a heat transfer sheet (not shown). The temperature sensor 66 is arranged so as to sandwich the temperature sensor 66, and the force for pressing the temperature sensor 66 against the battery 64 is likely to vary. When the pressure is strongly pressed, the temperature sensor 66 is damaged, and when it is weakly touched, the temperature detection accuracy is lowered. There was concern that it could be. Further, there is 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.

  In the conventional temperature detection module 71 shown in FIG. 8, since the temperature sensor 75 is disposed via the resin portion 72 and the heat transfer metal body 73, the temperature detection accuracy may be lowered. There was concern.

  In view of the above points, the present invention can press each temperature sensor against the surface of the battery with an appropriate contact pressure to prevent the temperature sensor from being damaged and improve the temperature detection accuracy. It is an object of the present invention to provide a temperature detection module that can be arranged with high accuracy and a method for manufacturing the temperature detection module that can easily form the temperature detection module.

  In order to achieve the above object, a temperature detection module according to claim 1 of the present invention includes a flexible flat circuit body that is bent into a wave shape so as to form a plurality of protrusions, and an inner surface at the tip of the protrusions. A temperature sensor provided on the first cover, an insulating first cover having each housing portion that houses the projecting portion and flexibly projects the distal end portion of the projecting portion to the outside from the opening, and the distal end portion includes A second cover having a pressing portion that elastically presses each temperature sensor toward the power supply device while being bent in contact with the power supply device.

  With the above configuration, the pressing portion of the second cover elastically presses the temperature sensor on the flat circuit body side and presses the temperature sensor on the power supply device side with an appropriate pressure so as to be in close contact with the flat circuit body. The front end side of the protruding portion of the flat circuit body hits the power supply device and bends elastically. After the flat circuit body is assembled to the first cover, the second cover is assembled to the second cover from above the flat circuit body. Alternatively, the flat circuit body is bent on the second cover, and both are assembled to the first cover. The entire second cover may be formed of an elastic material, or only the pressing portion of the second cover may be formed of an elastic material, or may be formed flexibly. The flat circuit body may be bent when assembled to the first cover, or may be bent before being assembled.

  The temperature detection module according to claim 2 is the temperature detection module according to claim 1, wherein the second cover is formed of an elastic material.

  With the above configuration, the second cover is integrally formed of an elastic material such as synthetic rubber. Since the second cover is made of an elastic material, the second cover can be expanded and contracted in the longitudinal direction and has a misalignment absorbability.

  The temperature detection module according to claim 3 is the temperature detection module according to claim 1 or 2, wherein the flat circuit body is positioned between the first cover and the second cover by positioning means and is sandwiched. It is fixed.

  With the above-described configuration, the flat circuit body and the second cover are positioned by the first cover by the positioning means, and the temperature sensor on the flat circuit body side is disposed in the housing portion of the first cover without being displaced. Examples of the positioning means include a protrusion of the first cover, a hole of the flat circuit body engaged therewith, a hole of the second cover, and the like.

  A temperature detection module according to a fourth aspect of the present invention is the temperature detection module according to any one of the first to third aspects, wherein the power supply device is an assembled battery in which a plurality of cells are assembled, and each protrusion of the flat circuit body Are in contact with each cell.

  With the above configuration, the first cover is arranged in a band shape in the cell arrangement direction, and each temperature sensor is accurately positioned in each housing portion of the first cover for each cell. Since the temperature sensor contacts the cell via the thin flat circuit body, the surface temperature of the cell is accurately detected. One temperature detection module is arranged for each cell row.

  The temperature detection module according to claim 5 is the temperature detection module according to any one of claims 1 to 3, wherein a connecting portion that connects each housing portion of the first cover has flexibility, It is possible to absorb the deviation.

  With the above configuration, when the temperature detection module is assembled to the power supply device, the first cover extends and contracts in the longitudinal direction from the connecting portion even if the positions of the housing portions of the first cover and the batteries of the power supply device are displaced. By doing so, the displacement is absorbed.

  A method for manufacturing a temperature detection module according to claim 6 is a method for manufacturing the temperature detection module according to any one of claims 1 to 5, wherein a plurality of teeth are projected at an equal pitch on the outer periphery of the disc. The inserted jig is rotated, and the flat belt-like flat circuit body is pushed into the accommodating portions of the first cover by the tooth portions.

  With the above configuration, each tooth portion continuously pushes the flat circuit body into each housing portion of the first cover while bending the waveform along the shape of the housing portion as the insertion jig rotates. Thereby, the assembly of the flat circuit body to the first cover is performed quickly and with a low man-hour. It is preferable to form a recess (groove or hole) in the tooth portion for allowing the temperature sensor of the flat circuit body to escape.

  According to the first aspect of the invention, the pressing portion of the second cover elastically presses the temperature sensor against the power supply device side, so that the temperature sensor is prevented from being damaged and the temperature detection accuracy is improved.

  According to invention of Claim 2, the effect of invention of Claim 1 can be exhibited reliably with the press part of the simple structure of a 2nd cover. In addition, the elastic second cover can be assembled to the first cover without displacement.

  According to the third aspect of the invention, the long flat circuit body is positioned on the first cover, whereby the position of the temperature sensor is accurately defined, and the temperature detection accuracy is improved. In addition, the first cover, the flat circuit body, and the second cover can be easily and reliably fixed to each other.

  According to the invention described in claim 4, the temperature can be accurately measured for each cell of the assembled battery without any positional deviation.

  According to the fifth aspect of the present invention, each temperature sensor can be arranged in each battery of the power supply device without positional deviation, so that temperature detection accuracy is improved.

  According to the invention of claim 6, since the waveform processing of the flat circuit body can be performed easily and quickly simultaneously with the assembly of the flat circuit body to the first cover, the productivity of the temperature detection module is increased, In addition, the cost can be reduced.

  1 to 2 show an embodiment of a temperature detection module according to the present invention.

  The temperature detection module 1 includes a synthetic resin-made insulating long lower cover (first cover) 2, a synthetic rubber-made insulating long upper cover (second cover) 3, and a lower cover 2. A long flexible flat circuit body (hereinafter referred to as a flat circuit body) 4 which is disposed between the upper cover 3 and the upper cover 3 and is bent in a substantially wave shape so that a part protrudes from the lower opening 6 (opening) of the lower cover 2; It is comprised with the temperature sensor 5 arrange | positioned at the protrusion part 7 of the circuit body 4. FIG.

  As shown in FIG. 1, the downward projecting portion 7 of the flat circuit body 4 projecting 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.

  A 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 (pressing portion) 10 of the upper cover 3 and is thinly flat on the upper surface 9 a of the battery 9. Contact is made via the circuit body 4. In FIG. 1, 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. 2, the lower cover 2 includes an accommodating part 13 composed of inverted left and right wall parts 11 and inclined front and rear wall parts 12 via front and rear (longitudinal) directions via connecting parts 14 and 15. A plurality of them are continuously connected in a strip shape in series. A circuit body arrangement space 16 (FIG. 1) 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. 1).

  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 18. 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.

  As shown in FIG. 2, projections (positioning means) 20 for positioning the flat circuit body 4 are provided on the upper surfaces of the connecting portions 14 and 15 of the lower cover 2. 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.

  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. 3, each side wall 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. 2, a short cylindrical protrusion 20 for positioning a circuit body is provided on the plate portion 23 and one connecting portion (connecting wall) 14. The displacement of the lower cover 2 in the longitudinal direction with respect to the battery 8 (FIG. 1) 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. 2, positioning and locking projections (locking means) 26 on both sides of the upper cover 3 are formed on a horizontal elongated wall portion 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.

  In addition, a substantially U-shaped locking frame portion 31 is provided upward in place of the other elongate wall portion 25 at a point of the lower cover 2. The frame portion 31 engages with a claw portion 33 on the upper end side of the resin portion 32 of the battery (battery unit) 8 in FIG. 5, whereby the entire temperature detection module 1 including the lower cover 2 is accurately positioned on the battery 8.

  As shown in FIG. 2, the flat circuit body 4 is bent into 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. This will be described later. As shown in FIG. 2, 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. 1, 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 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. 4 as an example of the circuit configuration of the flat circuit body 4, two printed circuits 36 and 37 are formed on a thin sheet 35 made of insulating resin, and one circuit 36 is continuous in the longitudinal direction of the insulating sheet 35. The other circuit 37 connects 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 of the circuits 36 and 37 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. 2, 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, and the protruding portion 10 is formed in a rectangular shape and hollow, Front and rear left and right wall portions 38 and 39 and a bottom side wall portion 40 are provided, and a slit-like hole portion 41 (not hatched in FIG. 1) following the front and rear ends of the bottom wall 40 is provided at the center of the front and rear wall portions 38. 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. 1, 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 protruding 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 15 positioning projections 20 of the connecting portion 14 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. 1, 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. .

  FIG. 5 shows a state in which the temperature detection module 1 is attached to the battery 8, and the temperature detection module is obtained by engaging the frame portion 31 of the lower cover 2 with the claw portion 33 of the horizontal resin portion 32 of the battery 8. 1 is positioned and fixed to the battery 8.

  In FIG. 5, reference numeral 47 is a battery pole, 45 is a vertical resin plate between the batteries, and 48 is an outer case of the battery 8. The temperature detection module 1 is linearly arranged in the direction in which the batteries 9 are arranged. A bus bar module (not shown) is mounted on the upper side of the battery 8, and the pole column 47 of each battery 9 is connected in series with a bus bar (not shown) made of a conductive metal plate.

  Although the batteries 8 are arranged in a row in FIG. 5, they are actually arranged in two rows and connected in series, and one temperature detection module 1 is also arranged for each battery 8. In the bus bar module, a bus bar having two holes into which two pole columns 47 are inserted is arranged in parallel with an insulating resin plate.

  In the above embodiment, the temperature detection module 1 is arranged on the upper surface of the battery 8, but the temperature detection module 1 may be arranged on the side surface of the battery 8 as shown in FIG. 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.

  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 of the upper cover 3 made of synthetic resin can be made flexible by thinning it by 10 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.

  FIG. 6 shows an embodiment of a manufacturing method of the temperature detection module 1.

  In this method, a flat belt-like flexible flat circuit body 4 (FIG. 2) is inserted into a synthetic resin lower cover (first cover) 2 while being bent into a waveform using a gear-like insertion jig 50. Is.

  The insertion jig 50 is formed by projecting a plurality of tooth portions (projections) 52 at an equal pitch on the outer periphery of a vertical disc 51 and providing a horizontal shaft portion 53 at the center of the disc 51. The tooth portions 52 enter the housing portion 13 from above in order to push the flat circuit body 4 into the housing portion 13 of the lower cover 2, and are arranged at the same pitch as each housing portion 13. A circular arc-shaped outer peripheral surface 51a of the disc 51 is formed between them.

  The tooth portion 52 has a trapezoidal left and right side surface 52a, front and rear inclined surfaces 52b, and a tip surface 52c, and has a groove portion 54 for allowing the temperature sensor 5 of the flat circuit body 4 to escape in the center of the tip surface 52c. ing. The groove part 54 is notched in the circumferential direction of the disk. The left and right side surfaces 52a may be formed in the same plane as the side surface of the disk 51 and perpendicular to the disk 51. It is preferable that the plate 51 is slightly inclined inward in the plate thickness direction. The front end surface 52c of the tooth portion 52 presses the bottom surface 7a of the flat circuit body 4 (FIG. 2).

  In FIG. 6, with the flat belt-like flat circuit body 4 (FIG. 4) placed on the upper opening 17 side of the lower cover 2, the insertion jig 50 is rotated in the arrow direction around the shaft portion 53, Each tooth portion 52 pushes the flat circuit body 4 into each accommodating portion 13 of the lower cover 2 to bend and deform into a trapezoidal waveform.

  The insertion jig 50 is lowered in advance to a position where the tooth portion 52 enters the first (one end) accommodating portion 13 of the flat circuit body 4, and the lower cover 2 is set in a state where it is horizontally extended straight on the work table. . From this state, the lower jig 2 is rotated at a fixed position (for example, the insertion jig 50 is rotated while the shaft portion 53 is rotatably supported by a device frame (not shown)), whereby the lower cover 2 is inserted into the insertion jig 50. The flat circuit body 4 is inserted into the lower cover while being pulled into the lower cover.

  Alternatively, in a state where the lower cover 2 is straightened at a fixed position, the insertion jig 50 is rotated and advanced along the lower cover 2 to insert the flat circuit body 4 into the lower cover. In this case, it is also possible for the operator to rotate the shaft portion 53 by hand. Since the lower cover 2 is easily bent in the width direction (left-right direction), it is preferable to set the lower cover 2 in a straight groove on the work table, for example.

  The flat circuit body 4 is bent at each tooth portion 52 of the insertion jig 50 and the protruding portion 7 (FIG. 2) is pushed into each housing portion 13 of the lower cover 2, thereby connecting portions 14, 15 between the housing portions. The top surface 34 (FIG. 2) of the flat circuit body 4 is horizontally disposed, and the protrusion 20 of the lower cover 2 automatically engages with the hole 21 of the top surface 34.

  By using the above method, for example, compared to a case where the operator manually inserts the flat circuit body 4 into the receiving portions 13 of the lower cover 2 while bending them one by one, the flexible (soft) flat to the lower cover 2 is achieved. The number of assembling steps for the circuit body 4 can be greatly reduced. Further, since the flat circuit body 4 can be bent and deformed into a uniform size along the receiving portions 13 by the respective tooth portions 52 of the insertion jig 50, the flat circuit body can be compared with the case where it is bent manually. The bending accuracy of the body 4 is improved.

  After the flat circuit body 4 is inserted into the lower cover 2, the upper cover 3 (FIG. 2) is inserted and engaged with the lower cover 2 from above the flat circuit body 4. Although this operation may be performed manually, for example, the upper cover 3 is placed on the flat circuit body 4 and the upper cover 3 is placed on the outer peripheral surface of a disc (not shown) having no teeth. It is also possible to push 3 into the lower cover 2. When the upper cover 3 is not used, the pushing operation is not necessary.

It is a longitudinal cross-sectional view which shows one Embodiment of the temperature detection module which concerns on this invention. It is a disassembled perspective view which similarly shows a temperature detection module. An example of the connection part of the lower cover of a temperature detection module is shown, (a) is a side 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 perspective view which shows the state which mounted | wore the temperature detection module with the battery. It is a perspective view which shows one Embodiment of the manufacturing method 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.

Explanation of symbols

1 Temperature detection module 2 Lower cover (first cover)
3 Upper cover (second cover)
4 Flat Circuit Body 5 Temperature Sensor 6 Opening 7 Projection 8 Battery (Power Supply)
9 Battery (cell)
10 Protruding part (pressing part)
13 accommodating part 15 connecting part 20 protrusion (positioning means)
21, 28 hole (positioning means)
50 Insertion jig 51 Disc 52 Tooth

Claims (6)

  A flexible flat circuit body bent into a wave shape so as to form a plurality of protrusions, a temperature sensor provided on the inner surface of the tip of the protrusion, and a tip-side portion of the protrusion containing the protrusion Insulating first cover having each accommodating portion that projects freely from the opening to the outside, and each temperature sensor is elastic to the power supply device side in a state where the tip side portion is bent in contact with the power supply device A temperature detection module comprising: a second cover having a pressing portion that presses automatically.   The temperature detection module according to claim 1, wherein the second cover is made of an elastic material.   3. The temperature detection module according to claim 1, wherein the flat circuit body is positioned and fixed to the first cover and the second cover by positioning means.   The temperature detection module according to any one of claims 1 to 3, wherein the power supply device is an assembled battery in which a plurality of cells are assembled, and each protruding portion of the flat circuit body is in contact with each cell. .   The temperature detection module according to claim 1, wherein a connecting portion that connects each housing portion of the first cover has flexibility and can absorb misalignment.   A method for manufacturing the temperature detection module according to any one of claims 1 to 5, wherein an insertion jig having a plurality of teeth protruding at an equal pitch on the outer periphery of a disc is rotated to form a flat belt-like shape. A method of manufacturing a temperature detection module, wherein the flat circuit body is pushed into each housing portion of the first cover by the tooth portion.

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