JP2019045071A - Temperature adjustment device and steering - Google Patents

Abstract

To provide a temperature adjustment device capable of efficiently cooling a steering by a thermoelectric transducer, and a steering.SOLUTION: A temperature adjustment device 1 is provided so as to be brought into contact with a core grid of a spoke part. The temperature adjustment device 1 has a main heat radiation block 10 provided with a thermoelectric transducer 2, and first-fourth auxiliary heat radiation blocks 21-24 facing first-fourth side surfaces 11-14 of the main heat radiation block 10. When a temperature of the main heat radiation block 10 rises, the main heat radiation block 10 is brought into surface contact with the auxiliary heat radiation blocks 21, 23, and then the temperature drops. When the main heat radiation block 10 further rises, a knife edge 16 enters a groove 26, the main heat radiation block 10 is further brought into surface contact with the auxiliary heat radiation blocks 22, 24, and then the temperature drops.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a temperature control device suitable for installation in a steering of a car or the like, and more particularly to a temperature control device using a thermoelectric conversion element. The present invention also relates to a steering provided with this temperature control device.

  Conventionally, as a temperature control device of a steering wheel, what was indicated, for example in patent documents 1 and 2 is known. The device of Patent Document 1 incorporates a Peltier element as a thermoelectric conversion element that generates heat and absorbs heat in a steering wheel, detects the current temperature (actual temperature) of the steering wheel with a temperature sensor (thermistor), The temperature of the steering wheel is adjusted by switching the polarity of the applied voltage to the Peltier element so as to select heating and cooling, and controlling the on / off (intermittent) of the applied voltage so as to select the temperature of.

  Patent Document 2 describes a heating and cooling device for steering that transfers the heat of a Peltier element to a steering handle by a heat conducting member.

Japanese Patent Application Laid-Open No. 60-88679 JP, 2015-3698, A

  An object of the present invention is to provide a temperature control device capable of efficiently cooling a steering by a thermoelectric conversion element, and a steering provided with the temperature control device.

  The temperature control apparatus according to the present invention is connected to the thermoelectric conversion element, one end of which is heated on the one end side and the cooling side on the other end when energized, and is connected directly or via a heat transfer member to the heating side of the thermoelectric conversion element. The heat dissipating block has a main heat dissipating block and a sub heat dissipating block which comes in surface contact with the main heat dissipating block when the main heat dissipating block is thermally expanded.

  In one aspect of the present invention, the main heat dissipating block has a heat receiving surface in contact with the thermoelectric conversion element or the heat transfer member, and a plurality of heat dissipating surfaces in a direction intersecting with the heat receiving surface. The sub heat dissipation blocks are disposed respectively.

  In one aspect of the present invention, the main heat dissipation block is a rectangular parallelepiped or a cube having a front surface, a back surface, and first to fourth side surfaces, and the first to fourth side surfaces orbit the main heat dissipation block in this order The thermoelectric conversion element or the heat transfer member is in contact with the front surface, the first to fourth sub heat dissipation blocks respectively face the first to fourth side surfaces, and the main heat dissipation block performs thermal expansion. When started, first, the first and third side surfaces and the first and third sub heat dissipation blocks make surface contact, and then the second and fourth side surfaces and the second and fourth sub heat dissipation blocks make surface contact.

  In one aspect of the present invention, a convex portion is provided on one of the second and fourth side surfaces of the main heat dissipating block and the main heat dissipating block opposite surface of the second and fourth sub heat dissipating blocks, and the convex is provided on the other. A recess is provided to allow entry, and the second and fourth auxiliary heat-dissipation blocks are movable away from each other in the oblique direction with respect to the second and fourth surfaces, respectively, and in the approaching direction by the biasing member. The convex portion and the concave portion are not engaged until the main heat dissipating block is heated to a predetermined temperature, and the convex portion is raised when the main heat dissipating block is heated to a predetermined temperature or more. Enters the recess, and the second and fourth side surfaces and the second and fourth sub heat dissipation blocks make surface contact.

  In one aspect of the present invention, a convex portion is provided on one of the second and fourth side surfaces of the main heat dissipating block and the main heat dissipating block facing surface of the second and fourth sub heat dissipating blocks, and the convex portion is provided on the other. The first and third auxiliary heat dissipating blocks are movable away from the first and third surfaces, respectively, and the main heat dissipating block rises to a predetermined temperature. The first and third sub heat dissipating blocks and the main heat dissipating block are separated until the temperature is increased, and the second and fourth sub heat dissipating blocks are separated from the second and fourth surfaces, respectively. The second and fourth auxiliary heat-dissipation blocks are movable while being urged in the approaching direction by the urging member, and until the main heat-dissipation block is heated to a predetermined temperature. Straddles the third sub heat release block and When the main heat dissipating block is heated to a predetermined temperature or higher, the main heat dissipating block makes surface contact with the first and third sub heat dissipating blocks and pushes the first and third sub heat dissipating blocks to retract. The distance between the sub heat dissipation blocks is larger than the width of the second and fourth sub heat dissipation blocks, and the second and fourth sub heat dissipation blocks biased by the biasing member move closer to the main heat dissipation block Thereafter, when the main heat radiation block is cooled and contracted, the convex portion enters the recess, and the second and fourth side surfaces and the second and fourth sub heat radiation block are in surface contact.

  In one aspect of the present invention, the projection is a knife edge extending in a direction connecting the front and back surfaces, and the recess is a groove.

  The steering of the present invention includes the temperature control device of the present invention.

  In the temperature control device of the present invention, when the main heat release block is heated to a predetermined temperature and thermally expanded by the heat from the thermoelectric conversion element, the main heat release block makes surface contact with the sub heat release block, and the heat of the main heat release block Heat is transferred to the heat radiation block, and the temperature of the main heat radiation block is lowered. Thereby, the heating side of the thermoelectric conversion element is cooled.

  In one aspect of the present invention, when the temperature of the main heat release block is raised to the first predetermined temperature by the heat from the thermoelectric conversion element, the main heat release block and the first and third auxiliary heat release blocks are in surface contact, The block cools down. Thereafter, when the temperature of the main heat radiation block is further raised to reach the second predetermined temperature, the main heat radiation block and the second and fourth sub heat radiation blocks are in surface contact, and the temperature of the main heat radiation block is decreased.

  According to the temperature control device of the present invention, it is possible to quickly cool the steering which has become hot.

It is a sectional view of a temperature control device concerning an embodiment. It is a perspective view which shows the main thermal radiation block and the sub thermal radiation block of the temperature control apparatus which concern on embodiment. It is sectional drawing at the time of temperature rising of the temperature control apparatus which concerns on embodiment. It is sectional drawing at the time of temperature rising of the temperature control apparatus which concerns on embodiment. It is a perspective view of a steering concerning an embodiment. It is sectional drawing of the temperature control apparatus which concerns on another embodiment. It is sectional drawing at the time of temperature rising of the temperature control apparatus which concerns on embodiment of FIG. It is sectional drawing at the time of temperature rising of the temperature control apparatus which concerns on embodiment of FIG. It is an expanded sectional view of the temperature control device concerning further another embodiment.

  The temperature control device 1 according to the first embodiment will be described with reference to FIGS.

  The temperature adjusting device 1 includes a main heat dissipating block 10 to which the heating side of the thermoelectric conversion element 2 is connected, and first to fourth sub heat dissipating blocks 21 to 24 which are in surface contact when the main heat dissipating block 10 thermally expands. Have. In this embodiment, the thermoelectric conversion element 2 is in direct contact with the main heat dissipation block 10, but the thermoelectric conversion element is connected to the main heat dissipation block 10 via the heat transfer member so as to be able to transfer heat. It may be done.

  The main heat dissipating block 10 is a rectangular parallelepiped or a cube, and has a front surface (heat receiving surface) 15, a back surface (abbreviated to reference numerals), and first to fourth side surfaces 11 to 14. The thermoelectric conversion element 2 is installed on the front surface 15. The second and fourth side faces 12 and 14 are provided with two knife edges 16 extending in the direction connecting the front face 15 and the back face. The second and fourth side surfaces are flat except for the knife edge 16. The first and third side faces 11 and 13 are flat.

  The main heat radiation block 10 and the sub heat radiation blocks 21 to 24 are made of metal or the like. The first and third auxiliary heat radiation blocks 21 and 23 are rectangular parallelepipeds or cubes, and one side face faces the first side faces 11 and 13, respectively. At normal temperature, there is a slight gap between the first and third auxiliary heat radiation blocks 21 and 23 and the first and third side surfaces 11 and 13.

  The second and fourth auxiliary heat radiation blocks 22 and 24 are formed of hexahedrons, and are in the shape of a rectangular prism having a parallelogram when viewed from the front. In the second and fourth sub heat dissipation blocks 22 and 24, one side surface (the lower surface of the sub heat dissipation block 22 and the top surface of the sub heat dissipation block 24) faces the second and fourth side surfaces 12 and 14. On the lower surface of the sub heat dissipating block 22 and the upper surface of the sub heat dissipating block 24, two grooves 26 extending in the direction connecting the front and back are provided.

  The main heat dissipating block 10 and the sub heat dissipating blocks 21 to 24 are installed in the casing 30. The casing 30 includes first to fourth chambers 31 to 34 extending in four directions of radiation, and the sub heat dissipation blocks 21 to 24 are disposed in the chambers 31 to 34. The main heat radiation block 10 is disposed at the center of the casing 30. The second and fourth chambers 32, 34 have a parallelogram in a front view.

  The second and fourth auxiliary heat dissipating blocks 22 and 24 can move toward and away from the main heat dissipating block 10 in the second and fourth chambers 32 and 34, respectively. It is biased in the approaching direction of

  Although not shown, on the inner surfaces of the second and fourth chambers 32 and 34, stoppers for preventing the sub heat dissipation blocks 22 and 24 from coming closer to the main heat dissipation block 10 than in the state shown in FIG. Is provided. In the state of FIG. 1, the sub heat dissipation blocks 22 and 24 are in contact with the stoppers. Further, in the state of FIG. 1, the knife edge 16 and the groove 26 are in the non-facing state in which they are separated.

  When the temperature control device 1 is at a normal temperature (room temperature) or lower than that, the main heat release block 10 is separated from the sub heat release blocks 21 to 24 as shown in FIG.

  When the temperature of the main heat radiation block 10 rises due to the heat from the thermoelectric conversion element 2, the main heat radiation block 10 thermally expands. When the main heat dissipating block 10 is heated to a first predetermined temperature, the main heat dissipating block 10 is thermally expanded, and the first and third side heat dissipating blocks 11 and 13 have first and third sub heat dissipating blocks as shown in FIG. 21 and 23, the heat held by the main heat radiation block 10 is removed by the first and third sub heat radiation blocks 21 and 23, and the temperature of the main heat radiation block 10 is lowered. Thereby, the main heat radiation block 10 is contracted by the temperature drop. After the sub heat dissipating blocks 21 and 23 are in surface contact with the main heat dissipating block 10, the sub heat dissipating blocks 21 and 23 and the chamber 31 may be retracted such that the sub heat dissipating blocks 21 and 23 retract when pressed by the main heat dissipating block 10. , 33, and an elastic body such as rubber may be interposed.

  When the main heat dissipating block 10 is heated from normal temperature, the main heat dissipating block 10 thermally expands, the knife edge 16 abuts on the second and fourth sub heat dissipating blocks 22 and 24, and the sub heat dissipating blocks 22 and 24 It is pushed by the heat radiation block 10 and retreats. The knife edge 16 and the groove 26 come close to each other by the sub heat radiation blocks 22 and 24 obliquely retracting in the chambers 32 and 34.

  As described above, when the temperature of the main heat radiation block 10, which has been removed by the sub heat radiation blocks 21 and 23 and lowered in temperature, is raised again by the heat from the thermoelectric conversion element 2, the main heat radiation block 10 is thermally expanded again. When the main heat dissipating block 10 exceeds the first predetermined temperature and reaches the second predetermined temperature, the knife edge 16 enters the groove 26 as shown in FIG. 4, and the main heat dissipating block 10 and the second and fourth sub heat dissipating blocks 22 and 24 are in surface contact, the heat held by the main heat radiation block 10 is removed by the sub heat radiation blocks 22 and 24, and the temperature of the main heat radiation block 10 is lowered.

  Thus, since the heating side of the thermoelectric conversion element 2 is cooled when the main heat radiation block 10 is desorbed by the sub heat radiation blocks 21 to 24 and thus the temperature is lowered, cooling by the thermoelectric conversion element 2 is efficiently performed. Thereafter, when the temperature of the main heat release block 10 is lowered, the main heat release block 10 is contracted, and when the temperature is lowered to a normal temperature or less, the state of FIG. 1 is restored.

  A temperature adjusting device 1A according to a second embodiment will be described with reference to FIGS.

  Also in the temperature control apparatus 1A, the main heat dissipating block 10 to which the heating side of the thermoelectric conversion element 2 is connected on the front surface, and the first to fourth sub heat dissipating blocks 21 to 24 surface contact when the main heat dissipating block 10 thermally expands. And 24.

  The main heat dissipation block 10 is a rectangular parallelepiped or a cube, and has first to fourth side surfaces 11 to 14. The second and fourth side faces 12 and 14 are provided with two knife edges 16 extending in the direction connecting the front face 15 and the back face. The second and fourth side surfaces are flat except for the knife edge 16. The first and third side faces 11 and 13 are flat.

  The main heat radiation block 10 and the sub heat radiation blocks 21 to 24 are made of metal or the like. The first to fourth auxiliary heat radiation blocks 21 to 24 are rectangular parallelepipeds or cubes, and one side face faces the first to fourth side faces 11 to 14, respectively. At normal temperature, there is a slight gap between the first and third auxiliary heat radiation blocks 21 and 23 and the first and third side surfaces 11 and 13.

  The second and fourth sub heat radiation blocks 22 and 24 are facing surfaces in which one side surface (the lower surface of the sub heat radiation block 22 and the top surface of the sub heat radiation block 24) faces the second and fourth side surfaces 12 and 14 ing. On the lower surface of the sub heat dissipating block 22 and the top surface of the sub heat dissipating block 24, two grooves 26 extending in the direction connecting the front and back of the main heat dissipating block 10 are provided. At normal temperature, the sub heat dissipation blocks 22 and 24 straddle between the sub heat dissipation blocks 21 and 23. That is, both ends of the lower surface of the sub heat dissipation block 22 and both ends of the upper surface of the sub heat dissipation block 24 are in contact with the upper surface and the lower surface of the sub heat dissipation blocks 21 and 23.

  The main heat dissipating block 10 and the sub heat dissipating blocks 21 to 24 are installed in a casing (not shown in FIGS. 6 to 8). In the second embodiment, the first to fourth auxiliary heat radiation blocks 21 to 24 are movable in the direction perpendicular to the first to fourth side surfaces 11 to 14.

  The sub heat dissipation blocks 22 and 24 are urged toward the main heat dissipation block 10 by the spring 35, and in the state of FIG. 6, the sub heat dissipation blocks 22 and 24 straddle the sub heat dissipation blocks 21 and 23 It is pressed.

  When the temperature control device 1A is at a normal temperature (room temperature) or lower than that, the main heat radiation block 10 is separated from the sub heat radiation blocks 21 to 24 as shown in FIG. Further, at this time, each knife edge 16 is located at the center side (the center side in the direction connecting the surfaces 11 and 13 of the main heat radiation block 10) than the recess 26.

  When the temperature of the main heat radiation block 10 rises due to the heat from the thermoelectric conversion element 2, the main heat radiation block 10 thermally expands. When the main heat dissipating block 10 is heated to a predetermined temperature, the first and third side faces 11 and 13 of the main heat dissipating block 10 are in surface contact with the first and third sub heat dissipating blocks 21 and 23 as shown in FIG. Then, the sub heat dissipation blocks 21 and 23 are pressed by the main heat dissipation block 10 and retreated.

  As a result, the distance between the sub heat dissipating blocks 21 and 23 becomes larger than the width of the sub heat dissipating blocks 22 and 24, and the sub heat dissipating blocks 22 and 24 separate from the sub heat dissipating blocks 21 and 23. And pressed against the knife edge 16. At this time, each knife edge 16 of the thermally expanded main heat radiation block 10 is located outside the groove 26. When the knife edge 16 passes the facing position of the groove 26 on the way to the state of FIG. 6 to FIG. 7, the sub heat dissipation block 22, 24 straddles the sub heat dissipation block 21, 23. 16 does not enter the groove 26.

  While the main heat dissipating block 10 is in surface contact with the sub heat dissipating blocks 21 and 23, the main heat dissipating block 10 is thermally desorbed, and the temperature is lowered to contract. Then, as shown in FIG. 8, a gap is generated between the main heat radiation block 10 and the sub heat radiation blocks 21 and 23. Further, the main heat dissipating block 10 contracts so that the knife edge 16 and the groove 26 overlap each other, and the knife edge 16 enters the groove 26 and the main heat dissipating block 10 and the second and fourth sub heat dissipating blocks 22 , 24 are in surface contact, the heat held by the main heat radiation block 10 is removed by the sub heat radiation blocks 22 and 24, and the temperature of the main heat radiation block 10 is lowered. At this time, since there is a gap between the main heat release block 10 and the first and third sub heat release blocks 21 and 23, the sub heat release blocks 22 and 24 remove heat only from the main heat release block 10.

  Thus, since the heating side of the thermoelectric conversion element is cooled by the main heat radiation block 10 being deheated by the sub heat radiation blocks 21 to 24, the cooling by the thermoelectric conversion element is efficiently performed.

  In the above embodiment, a knife edge and a groove are adopted, but in the third embodiment shown in FIG. 9, a movable piece 50 which can be tilted as a convex portion is used. The base end side of the movable piece 50 is supported by the main heat dissipation block 10 by the shaft 51, and can be rotated outward. The main heat radiation block 10 is provided with a recess 52 which is inserted when the movable piece 50 falls down.

  In FIG. 9A, the movable piece 50 stands upright from the main heat radiation block 10. As shown in FIGS. 7 to 8, when the main heat radiation block 10 is thermally shrunk in the left-right direction, the movable piece 50 is inclined to the outside of the main heat radiation block 10. The movable piece 50 is pushed down by pushing the movable piece 50 by the sub radiation block 22 biased by the spring 35 (not shown in FIG. 9), and the movable piece 50 is recessed in the recess 52 as shown in FIG. The sub heat dissipation block 22 and the main heat dissipation block 10 are in surface contact, and the heat of the main heat dissipation block 10 is removed by the sub heat dissipation block 22.

  The temperature control device of the present invention is suitable for cooling a steering. FIG. 5 is a perspective view of a steering 40 provided with the temperature adjustment device 1.

  The steering 40 is a so-called three-spoke type in this embodiment, and spoke portions 42, 43 and 44 respectively extend from the steering hub portion 41 in the center toward three directions, left and right and lower, The tip end sides of 42 to 44 are connected to the wheel portion 45 respectively.

  The wheel portion 45 and the spoke portions 42 to 44 each have a core metal, a foam synthetic resin layer (not shown) such as urethane foam covering the core metal, and a skin material such as leather covering the foam synthetic resin urethane layer. The temperature control device 1 is provided in contact with the core metal of the spokes 42 to 44.

  The above description is an example of the present invention, and the present invention may be in various forms other than the above. For example, although the knife edge 16 is provided on the main heat radiation block 10 and the groove 26 is provided on the sub heat radiation blocks 22 and 24 in the above embodiment, the knife edge is provided on the sub heat radiation blocks 22 and 24 The heat dissipation block 10 may be provided with a groove. Further, a convex portion having a shape other than the knife edge, for example, a conical convex portion may be provided.

1, 1 A Temperature control device 2 Thermoelectric conversion element 10 Main heat dissipation block 11 to 14 Side 16 Knife edge 21 to 24 Sub heat dissipation block 26 Groove 30 Casing 31 to 34 Chamber 35 Spring 40 Steering 50 Movable piece

Claims (7)

A thermoelectric conversion element in which one end is heated and the other end is cooled by being energized;
A main heat dissipating block connected directly or via a heat transfer member to the heating side of the thermoelectric conversion element;
A temperature control device, comprising: a sub heat dissipation block which is in surface contact with the main heat dissipation block when the main heat dissipation block is thermally expanded. The temperature control apparatus according to claim 1, wherein the main heat radiation block is a heat receiving surface in contact with the thermoelectric conversion element or the heat transfer member.
The heat receiving surface and the plurality of heat dissipation surfaces in the cross direction,
The temperature control device, wherein the sub heat dissipation block is disposed to face each heat dissipation surface. The temperature control apparatus according to claim 2, wherein the main heat dissipating block is a rectangular parallelepiped or cube shape having a front surface, a back surface, and first to fourth side surfaces, and the first to fourth side surfaces are main heat dissipating blocks in this order. It is circling,
The thermoelectric conversion element or the heat transfer member is in contact with the front surface,
The first to fourth auxiliary heat radiation blocks face the first to fourth side surfaces, respectively,
When the main heat dissipating block starts thermal expansion, the first and third side surfaces and the first and third sub heat dissipating blocks make surface contact, and then the second and fourth side surfaces and the second and fourth sub heat dissipating blocks And a surface contact. The temperature adjusting device according to claim 3, wherein a convex portion is provided on one of the second and fourth side surfaces of the main heat dissipating block and the main heat dissipating block facing surface of the second and fourth sub heat dissipating blocks, There is provided a recess in which the protrusion can enter,
The second and fourth auxiliary heat-dissipation blocks can move away from each other in oblique directions with respect to the second and fourth surfaces, respectively, and are biased in the approaching direction by a biasing member,
The convex portion and the concave portion are in a non-engagement state until the temperature of the main heat radiation block rises to a predetermined temperature,
When the temperature of the main heat release block rises to a predetermined temperature or more, the convex portion enters the recess, and the second and fourth side surfaces and the second and fourth sub heat release blocks are in surface contact with each other. apparatus. In the temperature control device of claim 3,
A convex portion is provided on one of the second and fourth side surfaces of the main heat dissipating block and the main heat dissipating block opposite surface of the second and fourth sub heat dissipating blocks, and a concave portion in which the convex portion can be inserted is provided on the other. Yes,
The first and third auxiliary heat dissipating blocks are movable away from the first and third surfaces, respectively,
The first and third auxiliary heat dissipating blocks and the main heat dissipating block are separated from each other until the temperature of the main heat dissipating block rises to a predetermined temperature,
The second and fourth auxiliary heat-dissipation blocks are movable away from the second and fourth surfaces, respectively, and are biased in the approaching direction by a biasing member,
The second and fourth sub heat dissipating blocks extend over the first and third sub heat dissipating blocks until the temperature of the main heat dissipating block rises to a predetermined temperature,
When the temperature of the main heat dissipating block rises to a predetermined temperature or higher, the main heat dissipating block makes surface contact with the first and third sub heat dissipating blocks and pushes the first and third sub heat dissipating blocks to retract. The distance between the third sub heat dissipating blocks is larger than the width of the second and fourth sub heat dissipating blocks, and the second and fourth sub heat dissipating blocks biased by the biasing member approach the main heat dissipating block After the main heat dissipating block is cooled and contracted, the convex portion enters the recess, and the second and fourth side surfaces and the second and fourth sub heat dissipating blocks make surface contact. Temperature control device.   The temperature control device according to claim 4 or 5, wherein the convex portion is a knife edge extending in a direction connecting the front surface and the back surface, and the concave portion is a groove.   A steering provided with the temperature control device according to any one of claims 1 to 6.

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