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WO2019078090A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
WO2019078090A1
WO2019078090A1 PCT/JP2018/037972 JP2018037972W WO2019078090A1 WO 2019078090 A1 WO2019078090 A1 WO 2019078090A1 JP 2018037972 W JP2018037972 W JP 2018037972W WO 2019078090 A1 WO2019078090 A1 WO 2019078090A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
electrodes
heat generating
portions
heater device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/037972
Other languages
English (en)
Japanese (ja)
Inventor
田中　祐介
公威 石川
関　秀樹
弘和 山抱
立志 土門
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018124916A external-priority patent/JP7110764B2/ja
Application filed by Denso Corp filed Critical Denso Corp
Priority to DE112018004573.0T priority Critical patent/DE112018004573B4/de
Priority to CN201880067147.9A priority patent/CN111213431B/zh
Publication of WO2019078090A1 publication Critical patent/WO2019078090A1/fr
Priority to US16/842,207 priority patent/US20200236740A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details

Definitions

  • the present invention relates to a heater device.
  • This device has a main body portion having a heat generating portion that generates heat when energized, and a plurality of conductive portions, and an object of the peripheral portion of the main body portion based on a change in electric field formed around the plurality of conductive portions. And a detection unit that detects proximity or contact. Furthermore, when an object around the main body is detected by the detection unit, the control unit is provided to suppress energization of the heat generating unit. This makes it possible to suppress thermal discomfort to the user when the proximity or contact of the object continues.
  • the heat generating portions are dispersedly disposed in a plurality of portions so as to suppress the movement of heat in the surface direction of the heat generating portion, and a member having a thermal conductivity lower than the heat generating portion And the temperature of the portion touched when the main body is touched is configured to be reduced rapidly.
  • the device described in Patent Document 1 can not sufficiently diffuse the heat generated by the heat generating portion in the surface direction and radiate the heat. For this reason, the temperature distribution on the heat generating surface becomes uneven, and a stable heating feeling can not be provided to the user.
  • the present disclosure is directed to providing a more stable feeling of heating and capable of suppressing thermal discomfort to the user when the proximity or contact of an object continues.
  • the heater device includes a planar heat generating portion that generates heat by energization and a plurality of planar electrodes disposed on one side of the heat generating portion, and A heat generation unit comprising: a detection circuit that detects proximity or contact of an object to a plurality of electrodes based on a change in capacitance; and a control unit that controls the amount of current supplied to the heat generation unit based on the detection result of the detection circuit
  • the plurality of electrodes are arranged in parallel with each other, and when the plurality of electrodes and the heating portion are projected in the vertical direction of the plurality of electrodes and the heating portion, the heating region where the heating portion is present, and the non-heating
  • the plurality of electrodes are formed so as to be included in at least the non-heat generating region and have a thermal diffusion promoting portion for promoting thermal diffusion that diffuses the heat propagated from the heat generating portion in the surface direction of the plurality of electrodes.
  • the plurality of electrodes are provided with a thermal diffusion promoting portion which is formed to be included at least in the non-heat generating region and promotes thermal diffusion for diffusing the heat transmitted from the heat generating portion in the surface direction of the plurality of electrodes. doing. Therefore, it is possible to provide a more stable feeling of heating and to suppress thermal discomfort to the user when the proximity or contact of an object continues.
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG. It is an enlarged view showing the exothermic part and electrode of a heater device of a 1st embodiment.
  • FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 4;
  • FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. It is a figure for demonstrating the electric field formed between a transmission electrode and a receiving electrode.
  • It is a block diagram of a heater device of a 1st embodiment. It is a flowchart of the control part of the heater apparatus of 1st Embodiment. It is a front view of the heater apparatus of 2nd Embodiment, Comprising: It is the figure which showed the heat-emitting part and the electrode by hatching.
  • the heater device 20 according to the first embodiment is installed in the room of a movable body such as a road traveling vehicle.
  • the heater device 20 constitutes a part of a heating device for indoor use.
  • the heater device 20 is an electric heater that generates power by being supplied with power from a battery, a generator, or the like mounted on a mobile body.
  • the heater device 20 is formed in a thin plate shape.
  • the heater device 20 generates heat when power is supplied.
  • the heater device 20 radiates radiant heat mainly in the direction perpendicular to the surface in order to warm an object positioned in the direction perpendicular to the surface.
  • a seat 11 for seating the occupant 12 is installed in the room.
  • the heater device 20 is installed indoors so as to radiate radiant heat to the feet of the occupant 12.
  • the heater device 20 can be used, for example, as a device for providing warmth immediately to the occupant 12 immediately after activation of another heating device.
  • the heater device 20 is installed on the wall of the room.
  • the heater device 20 is installed to face the occupant 12 in the assumed normal posture.
  • the heater device 20 can be installed on the lower surface of a steering column cover 15 provided so as to cover the steering column 14 for supporting the steering 13 so as to face the occupant 12.
  • the heater device 20 can be installed on the dashboard 16 located below the steering column cover 15 so as to face the occupant 12.
  • the heater device 20 extends along an XY plane defined by the axis X and the axis Y.
  • the heater device 20 has a thickness in the direction of the axis Z.
  • the heater device 20 is formed in a substantially square thin plate shape.
  • the heater device 20 includes an insulating layer 21, a plurality of heat generating portions 22, an insulating substrate 23, electrodes 241 and 242, and an insulating layer 25.
  • the heat generating portion 22, the insulating substrate 23, the electrodes 241 and 242, and the insulating layer 25 constitute a heater main body 200.
  • the heater device 20 can also be referred to as a planar heater that radiates radiant heat mainly in a direction perpendicular to the surface.
  • the respective heat generating portions 22 form a rectangle extending in the direction of the axis X, and are arranged side by side in the direction of the axis Y.
  • the heat generating portions 22 are connected to each other via the heat generating portion electrode 26.
  • the plurality of heat generating portions 22 are regularly arranged so as to occupy a predetermined area on the XY plane in the drawing.
  • Each heat generating portion 22 is connected to the heat generating portion electrode 26. Each heat generating portion 22 generates heat by the power supplied through the heat generating portion electrode 26. Each heat generating portion 22 is disposed on one side of the insulating substrate 23, that is, on the side opposite to the passenger.
  • Each heat generating portion 22 is made of a material having a low electrical resistance.
  • Each heating part 22 can be made of a metal material.
  • Each heat generating portion 22 is selected from a material having a thermal conductivity lower than that of copper.
  • each heating portion 22 can be configured using copper, an alloy of copper and tin, silver, tin, stainless steel, a metal such as nickel or nichrome, and an alloy containing these.
  • the heating unit 22 can radiate radiant heat that makes the occupant 12 feel a warmth by being heated to a predetermined radiation temperature.
  • Each heat generating portion 22 is made of a material having high thermal conductivity.
  • Each heat generating portion electrode 26 has a rectangular shape extending in the direction of the axis X, and is disposed at both ends of the plurality of heat generating portions 22 in the axis Y direction. Each heat generating portion electrode 26 is made of a material having a low electrical resistance.
  • An insulating layer 21 having a thermal conductivity lower than that of the heat generating portion 22 is disposed on one surface side of the insulating substrate 23, that is, on the side opposite to the occupant.
  • the insulating layer 21 is disposed to cover the heat generating portion 22 from one surface side of the insulating substrate 23.
  • the insulating layer 21 has high insulating properties, and is made of, for example, a polyimide film, an insulating resin, or the like.
  • the heat generating portion 22 has a thin film shape, and is dispersedly disposed on one surface side of the insulating substrate 23. Therefore, the heat generating portion 22 of the present embodiment has a low heat capacity as compared with a thick plate-shaped heat generating layer.
  • the heat generating layer 220 of the present embodiment has low heat capacity and high heat resistance, and movement of heat in the surface direction of the heat generating portion 22 is suppressed when the heat generating layer 220 is in contact with an object. There is a specific decrease in temperature quickly.
  • the thickness of the plurality of heat generating portions 22 is preferably 50 microns or less, and more preferably 20 microns or less in order to sufficiently reduce the heat transfer in the surface direction of the heat generating layer 220.
  • the insulating substrate 23 is made of a resin material that provides excellent electrical insulation and withstands high temperatures. Specifically, the insulating substrate 23 is made of a resin film. A plurality of pairs of electrodes 24 are disposed on one surface side of the insulating substrate 23. The insulating substrate 23 has a lower thermal conductivity than the heat generating portion 22.
  • the electrodes 241 and 242 each have a comb shape.
  • the electrode 241 is a transmitting electrode, and the electrode 242 is a receiving electrode.
  • the electrode 241 and the electrode 242 are formed on the other surface of the insulating substrate 23. That is, the electrode 241 and the electrode 242 are formed on the surface on the occupant side.
  • the heating device 20 of the present embodiment when the plurality of electrodes 241 and 242 and the plurality of electrodes and the heating portion are projected in the vertical direction of the heating portion 22, the heating region where the heating portion 22 exists and the heating portion 22 do not exist.
  • a non-heating area is configured.
  • the plurality of electrodes and the plurality of heat generating portions are projected in the vertical direction of the plurality of electrodes 241 and 242 and the heat generation portion 22, an overlapping area Ov where the heat generation portion 22 and the electrodes 241 and 242 overlap, the heat generation portion 22 and the electrodes 241 , 242 and non-overlapping regions are configured.
  • the electrode 241 includes a linear portion 2411 having a predetermined line width D1 and a wide portion 2412 having a line width D2 wider than the predetermined line width D1.
  • the electrode 242 has a linear portion 2421 having a predetermined line width D1, and a wide portion 2422 having a line width D2 wider than the predetermined line width D1.
  • the wide portions 2412 and 2422 are formed to be included in the non-heat generation region.
  • the wide portions 2412 and 2422 promote thermal diffusion that causes the heat transmitted from the heat generating portion 22 to the electrodes 241 and 242 to diffuse in the surface direction of the electrodes 241 and 242.
  • the volume V2 of the electrodes 241 and 242 included in the overlapping regions Ov is equal to or less than the volume V1 of the heat generating portion 22 included in the overlapping regions Ov.
  • the thickness of the electrodes 241 and 242 included in the overlapping region Ov is equal to or less than the thickness of the heat generating portion 22 included in the overlapping region Ov. That is, in each of the overlapping regions Ov, the heat capacity of the electrodes 241 and 242 included in the overlapping region Ov is equal to or less than the heat capacity of the heat generating portion 22 included in the overlapping region Ov.
  • the electrodes 241 and 242 are each made of a material having high thermal conductivity. Specifically, the electrodes 241 and 242 are made of a conductive metal such as copper. The electrode 241 and the electrode 242 are made of the same material. The electrode 241 and the electrode 242 each have thermal conductivity higher than that of the insulating substrate 23.
  • the electrodes 241 and 242 are regularly arranged to occupy a predetermined area on the XY plane in the figure.
  • the electrodes 241 and 242 each have a predetermined area for generating a capacitance necessary for detecting a capacitance on an XY plane in the drawing.
  • the electric field between the electrode 241 and the electrode 242 changes the capacitance between the electrode 241 and the electrode 242.
  • the heater device 20 of this embodiment detects proximity or contact of an object by mutual capacitance.
  • the insulating layer 25 having a thermal conductivity lower than that of the electrodes 241 and 242 is disposed on the other surface side of the electrodes 241 and 242 on the other side of the insulating substrate 23.
  • the insulating layer 25 is arranged to cover the electrode 241 and the electrode 242 from the other surface side of the insulating substrate 23.
  • the insulating layer 25 has high insulating properties, and is made of, for example, a polyimide film, an insulating resin, or the like.
  • the insulating layer 25 having a thermal conductivity lower than that of each transmitting electrode 241 and each receiving electrode 242 is disposed between each transmitting electrode 241 and each receiving electrode 242, so that the surface of the heat generating layer 220 is formed.
  • the thermal resistance in the direction is increased.
  • the transmission electrodes 241 and the reception electrodes 242 have a thin film shape, and are dispersedly disposed on the other surface side of the insulating substrate 23. Therefore, each transmitting electrode 241 and each receiving electrode 242 of the present embodiment have a low heat capacity.
  • each transmitting electrode 241 and each receiving electrode 242 have low heat capacity and high heat resistance, and when in contact with an object, movement of heat in the surface direction of the heat generating layer is suppressed.
  • the temperature of the contact portion has a characteristic that decreases rapidly.
  • the thicknesses of the plurality of transmission electrodes 241 and the plurality of reception electrodes 242 are preferably 50 microns or less, and further, the heat transfer of the plurality of transmission electrodes 241 and the plurality of reception electrodes 242 in the surface direction is sufficiently small. In order to do this, it is preferable that the thickness be 20 microns or less.
  • the heater device 20 includes a heater main body 200, a detection circuit 30, and a control unit 40.
  • the heater main body portion 200 includes an electrode 241 and an electrode 242, and a heat generating portion 22.
  • the detection circuit 30 forms an electric field between the electrode 241 and the electrode 242 to detect an object around the electrode 241 and the electrode 242. Specifically, detection circuit 30 applies a predetermined voltage between electrode 241 and electrode 242 to form an electric field between electrode 241 and electrode 242 and also changes the electric field between electrode 241 and electrode 242. To detect In this way, the contact of the object existing around the electrode 241 and the electrode 242 to the electrode 241 and the electrode 242 via the proximity or the insulating layer 25 is detected. When detecting that the object is in proximity to or in contact with the electrodes 241 and 242, the detection circuit 30 sends a signal indicating that the object is in proximity or contact to the control unit 40.
  • the control unit 40 is configured as a computer including a CPU, a memory, and the like, and the CPU performs various processes in accordance with a program stored in the memory.
  • the control unit 40 performs a process of controlling the amount of current supplied to the heat generating unit 22 based on the signal from the detection circuit 30.
  • a memory is a non-transitory tangible storage medium.
  • control unit 40 When the power to the heater device 20 is turned on, the control unit 40 starts energization of the heat generating unit 22 and repeats the process shown in FIG. Note that each control step in this flowchart constitutes various function realizing means included in the control unit 40.
  • step S10 the control unit 40 determines whether proximity or contact of an occupant has been detected. Specifically, a pulse-like pulse voltage is applied to the transmission electrode 241 to form an electric field between the transmission electrode 241 and the reception electrode 242. Thereby, as shown in FIG. 7, an electric field is formed between the transmitting electrode 241 and the receiving electrode 242.
  • the object is determined based on whether or not the voltage between the transmission electrode 241 and the reception electrode 242 when the predetermined period has elapsed since the fall of the pulse voltage in step S10 is equal to or higher than a predetermined threshold. It is determined whether proximity or contact has occurred. Then, when it is determined that the object is in proximity or in contact, the detection circuit 30 outputs a signal indicating that the object is in proximity or in contact to the control unit 40. The control unit 40 determines whether an object is detected based on the signal output from the detection circuit 30.
  • the detection circuit 30 sends a signal indicating that the object is in proximity or in contact with the control unit 40.
  • control unit 40 stops the heater in the next step S14. Specifically, the control unit 40 stops the energization of the heat generating unit 22.
  • control part 40 finishes this process, without implementing the process of step S102.
  • the temperature of the contacting portion rapidly decreases when the occupant contacts the heater surface. Do. Specifically, the temperature of the contacted portion is lowered to 52 ° C. or less at which the occupant's reflection reaction due to heat does not occur. Therefore, a safe heater device can be provided.
  • the heater device of this embodiment stops the energization of the heat generating portion 22 when it detects the proximity or contact of a surrounding object. Therefore, for example, even when the contact with the heater surface continues for a relatively long time without noticing that the passenger contacts the surface of the heater device, it is possible to prevent the passenger from giving a thermal discomfort. .
  • the heater device includes the planar heat generating portion 22 that generates heat by energization. Further, it has a plurality of planar electrodes 241 and 242 disposed on one surface side of the heat generating portion, and detects proximity or contact of an object to the plurality of electrodes based on a change in electrostatic capacitance between the plurality of electrodes.
  • a detection circuit 30 is provided.
  • the control part 40 which controls the electricity supply amount to a heat-emitting part based on the detection result of a detection circuit is provided.
  • the heat generating portion 22 and the plurality of electrodes 241 and 242 are arranged in parallel to each other.
  • the plurality of electrodes and the plurality of electrodes and the plurality of electrodes are projected in the vertical direction of the plurality of electrodes 241 and 242 and the heating portion 22, a heating region in which the heating portion 22 exists and a non-heating region in which the heating portion 22 does not exist are configured.
  • the plurality of electrodes further include a thermal diffusion promoting portion formed to be included in at least the non-heat generating region and promoting thermal diffusion to diffuse the heat propagated from the heat generating portion in the surface direction of the plurality of electrodes. Are wide portions 2412 and 2422.
  • the plurality of electrodes 241 and 242 are formed so as to be at least included in the non-heat generation region and promote thermal diffusion that diffuses the heat transmitted from the heat generating portion 22 in the surface direction of the plurality of electrodes 241 and 242 Heat diffusion promoting portion.
  • the thermal diffusion promoting portion is the wide portions 2412 and 2422. Therefore, it is possible to provide a more stable feeling of heating and to suppress thermal discomfort to the user when the proximity or contact of an object continues.
  • the plurality of electrodes 241 and 242 and the heating portion 22 are projected in the vertical direction of the plurality of electrodes 241 and 242 and the heating portion 22 in each overlapping region where the heating portion 22 and the plurality of electrodes 241 and 242 overlap.
  • the volume of the electrodes 241 and 242 included in the overlapping region is equal to or less than the volume of the heat generating portion 22 included in the overlapping region. That is, in each overlapping region, the heat capacity of the electrodes 241 and 242 included in the overlapping region is equal to or less than the heat capacity of the heat generating portion 22 included in the overlapping region. Therefore, when an object comes in contact with the electrodes 241, 242, the heat capacity of the electrodes 241, 242 becomes equal to or less than the heat capacity of the heat generating portion 22, and the temperature of the contact portion can be reduced rapidly. Discomfort can be reduced.
  • the plurality of electrodes 241 and 242 are linear portions 2411 and 2421 having a predetermined line width, and wide portions 2412 and 2422 formed so as to be included in at least a non-heat generation region and having a line width wider than the predetermined line width. have.
  • the heat diffusion promoting portion is a wide portion.
  • the thermal diffusion promoting portion can be configured by the wide portions 2412 and 2422 formed so as to be included in at least the non-heat generation region and wider than the predetermined line width.
  • the wide portions 2412 and 2422 can make the temperature distribution in the surface direction of the plurality of electrodes 241 and 242 uniform.
  • the plurality of electrodes 241 and 242 have linear portions 2411 and 2421 having a predetermined line width, and meandering portions 2413 and 2423 that meander and extend from the non-heat generation region through the heat generation region to the non-heat generation region. doing.
  • the thermal diffusion promoting portion is a meandering portion 2413, 2423.
  • the meandering portion 2413 is formed to branch from the electrode 241 and extend in a meandering manner between the non-heat generation region and the heat generation region.
  • the meandering portion 2423 is formed to branch from the electrode 242 and extend in a meandering manner between the non-heat generation region and the heat generation region.
  • the heat electrically heated from the heat generating portion 22 to the meandering portions 2413 and 2423 in the heat generation region is diffused in the surface direction of the plurality of electrodes 241 and 242 in the meandering portions 2413 and 2423 in the non-heat generation region.
  • the thermal diffusion that diffuses the heat transmitted from the heat generating portion 22 in the surface direction of the plurality of electrodes 241 and 242 is promoted by the meandering portions 2413 and 2423.
  • the thermal diffusion promoting portion can be constituted by meandering portions 2413 and 2423 that meander and extend from at least the non-heat generation region through the heat generation region to the non-heat generation region.
  • the plurality of electrodes 241 and 242 include linear portions 2411 and 2421 having a predetermined line width, and first branch portions 2414 and 2424 which are formed to be included in at least a non-heat generation region and branched from the linear portions. have.
  • the thermal diffusion promoting portion is a first branch portion 2414, 2424. Furthermore, it has a second branch portion 2415, 2425 which is formed so as to be included at least in the heat generation region and which branches from the first branch portion 2414, 2424.
  • the thermal diffusion promoting unit is constituted by the first branch parts 2414 and 2424 and the second branch parts 2415 and 2425.
  • the heat transmitted from the heat generating portion 22 to the linear portions 2411 and 2421 can be diffused in the surface direction of the electrodes 241 and 242 by the first branch portions 2414 and 2424 formed so as to be included in at least the non-heat generation region.
  • the heater device of the present embodiment includes second branch portions 2415 and 2425 which are formed so as to be included at least in the heat generation region and branch from the first branch portions 2414 and 2424. Therefore, the heat propagated from the heat generating portion 22 to the second branch portions 2415 and 2425 by the second branch portions 2415 and 2425 can be propagated to the first branch portions 2414 and 2424 and diffused in the surface direction of the electrodes 241 and 242. it can.
  • thermal diffusion promoting portion can be configured by the first branch portions 2414 and 2424 which are formed so as to be included in at least the non-heat generation region and branched from the linear portion.
  • the heater device of the fourth embodiment will be described with reference to FIG.
  • the heat generating portion 22 of the heater device of the present embodiment has a plurality of linear portions 221 arranged at regular intervals.
  • the plurality of electrodes 241 and 242 are formed so as to be included at least in the non-heat generation region, and have rectangular heat dissipation portions 2416 and 2426 which form a rectangular shape whose one side is longer than the width of the linear portion.
  • the minimum length between the plurality of rectangular heat radiating portions 2416 and 2426 is shorter than the distance between the plurality of linear portions 221.
  • the heat diffusion promoting portion is a rectangular heat radiating portion 2416, 2426.
  • the rectangular heat radiation portions 2416 and 2426 have rectangular space portions formed therein, and the amount of conductive metal used to form the rectangular heat radiation portions 2416 and 2426 is reduced.
  • Each side of the rectangular heat radiation parts 2416 and 2426 is formed to extend in the direction orthogonal to the direction orthogonal to the longitudinal direction of the linear part 221.
  • the plurality of electrodes 241 and 242 are formed so as to be at least included in the non-heat generation region, and have rectangular heat dissipating portions 2416 and 2426 each having a rectangular shape whose one side is longer than the width of the linear portion. doing.
  • the minimum length between the plurality of rectangular heat radiating portions 2416 and 2426 is shorter than the distance between the plurality of linear portions 221.
  • the rectangular heat radiation portions 2416 and 2426 are formed to be spread in the surface direction of the electrodes 241 and 242 so as to be included in at least the non-heat generation region. Therefore, the heat radiated from the heat generating portion 22 to the rectangular heat radiating portions 2416 and 2426 can be diffused in the surface direction of the electrodes 241 and 242 by the rectangular heat radiating portions 2416 and 2426.
  • At least one of the plurality of rectangular heat dissipation portions 2416 has a first side facing one side of one rectangular heat dissipation portion 2426 of the plurality of rectangular heat dissipation portions 2426. Furthermore, one side of a rectangular heat dissipating portion 2426 disposed next to a rectangular heat dissipating portion 2426 disposed so that the second side adjacent to the first side faces the first side of the rectangular heat dissipating portion 2416 It is arranged to face each other.
  • the proximity or contact of an object can be detected with high accuracy as compared with the case where one wide portion 2412 and one wide portion 2422 are capacitively coupled.
  • the heat generating portion 22 of the heater device of the present embodiment has a plurality of linear portions 221 arranged at regular intervals.
  • the plurality of electrodes 241 and 242 have honeycomb heat radiating portions 2417 and 2427 which are formed so as to be included at least in the non-heat generation region and form a hexagonal shape whose one side is longer than the width of the linear portion.
  • the minimum length between the plurality of honeycomb heat radiating portions 2417 and 2427 is shorter than the distance between the plurality of linear portions 221.
  • the heat diffusion promoting portion is a honeycomb heat radiating portion 2417, 2427.
  • Each side of the honeycomb heat radiating portions 2417 and 2427 is formed to extend in the direction orthogonal to the direction orthogonal to the longitudinal direction of the linear portion 221.
  • the plurality of electrodes 241 and 242 are formed so as to be at least included in the non-heat generation region, and have honeycomb heat radiating portions 2417 and 2427 each having a hexagonal shape whose one side is longer than the width of the linear portion. doing. Then, the minimum length between the plurality of honeycomb heat radiating portions 2417 and 2427 is shorter than the distance between the plurality of linear portions 221.
  • the honeycomb heat radiating portions 2417 and 2427 are formed to be spread in the surface direction of the electrodes 241 and 242 so as to be included in at least the non-heat generation region. Therefore, the heat transmitted from the heat generating portion 22 to the rectangular heat radiating portions 2416 and 2426 can be diffused in the surface direction of the electrodes 241 and 242 by the honeycomb heat radiating portions 2417 and 2427.
  • At least one of the plurality of honeycomb heat radiating portions 2417 has a first side facing one side of one honeycomb heat radiating portion 2427 of the plurality of honeycomb heat radiating portions 2427. Furthermore, one side of the rectangular heat dissipation portion 2426 disposed next to the honeycomb heat dissipation portion 2427 disposed so that the second side adjacent to the first side faces the first side of the honeycomb heat dissipation portion 2417. It is arranged to face each other.
  • the proximity or contact of an object can be detected with high accuracy as compared with the case where one wide portion 2412 and one wide portion 2422 are capacitively coupled.
  • the heater device of the present embodiment includes a receiving electrode 242 and a transmitting electrode 241 disposed so as to surround the receiving electrode 242.
  • the receiving electrode 242 has a plurality of rectangular portions 2428 having a rectangular shape, and linear portions 2429 connecting between the rectangular portions 2428.
  • the receiving electrode 242 is formed to meander and extend in a plane.
  • the transmitting electrode 241 is formed to surround the rectangular portion 2428 and the linear portion 2429.
  • the transmitting electrode 241 is formed to be a metal mesh.
  • the heater device of the present embodiment has two linear heat generating parts 22.
  • the heat generating portions 22 are formed side by side so as to extend in a meandering manner on a plane.
  • the receiving electrode 242 is formed so as to extend in a meandering manner from at least the non-heat generation region through the heat generation region to the non-heat generation region. Further, the transmission electrode 241 is also formed to extend from at least the non-heat generation region through the heat generation region to the non-heat generation region.
  • the overlapping relationship between the heating portion 22 and the reception electrode 242 and the transmission electrode 241 differs depending on the place.
  • the heater device of the present embodiment has two linear heat generating portions 22, it may have one heat generating portion 22, and has three or more heat generating portions 22. It is also good.
  • the heater device is installed on a road traveling vehicle.
  • the present invention is not limited to a road traveling vehicle.
  • the heater device may be installed inside a mobile unit such as a ship or aircraft. You can also.
  • the space portion is provided inside the rectangular heat radiating portions 2416 and 2426 or the honeycomb heat radiating portions 2417 and 2427, but such a space portion is not provided. You can also.
  • the rectangular heat radiating portions 2416 and 2426 or the honeycomb heat radiating portions 2417 and 2427 are formed as a part of the plurality of electrodes 241 and 242.
  • a shape other than a rectangle or a hexagon, for example, a triangle, an octagon, a circle or the like may be configured as a part of the plurality of electrodes 241 and 242.
  • this indication is not limited to above-mentioned embodiment, and can be changed suitably. Moreover, said each embodiment is not mutually irrelevant and can be combined suitably, unless the combination is clearly impossible. Further, in each of the above-described embodiments, it is needless to say that the elements constituting the embodiment are not necessarily essential except when clearly indicated as being essential and when it is considered to be obviously essential in principle. Yes. Further, in the above embodiments, when numerical values such as the number, numerical value, amount, range, etc. of constituent elements of the embodiment are mentioned, it is clearly indicated that they are particularly essential and clearly limited to a specific number in principle. It is not limited to the specific number except when it is done. Further, in the above embodiments, when referring to materials, shapes, positional relationships, etc. of constituent elements etc., unless specifically stated otherwise or in principle when limited to a specific material, shape, positional relationship, etc., etc. It is not limited to the material, the shape, the positional relationship, etc.
  • the heater device includes a planar heat generating portion that generates heat by energization. And a detection circuit having a plurality of planar electrodes arranged on one side of the heat generating portion and detecting proximity or contact of an object to the plurality of electrodes based on a change in capacitance between the plurality of electrodes. And a control unit configured to control the amount of current supplied to the heat generating unit based on the detection result of the detection circuit.
  • the heat generating portion and the plurality of electrodes are disposed in parallel with each other.
  • the plurality of electrodes and the heat generating portion are projected in the vertical direction of the plurality of electrodes and the heat generating portion, a heat generating region where the heat generating portion exists and a non-heat generating region where the heat generating portion does not exist are configured.
  • the plurality of electrodes have thermal diffusion promoting portions formed to be included at least in the non-heat generating region and promoting thermal diffusion that diffuses the heat propagated from the heat generating portion in the surface direction of the plurality of electrodes.
  • the volume of the included electrode is smaller than the volume of the heat generating portion included in the overlapping region. That is, in each overlapping region, the heat capacity of the electrodes included in the overlapping region is smaller than the heat capacity of the heat generating portion included in the overlapping region. Therefore, when an object comes in contact with the electrode, the temperature of the contacted site can be rapidly reduced, and thermal discomfort to the user can be reduced.
  • the plurality of electrodes are configured by a linear portion having a predetermined line width, and a wide portion formed so as to be included in at least a non-heat generation region and having a line width wider than the predetermined line width. be able to.
  • the plurality of electrodes have a meandering portion extending in a meandering manner from at least the non-heat generating region through the heat generating region to the non-heat generating region, and the thermal diffusion promoting portion is a meandering portion.
  • the thermal diffusion promoting portion can be constituted by a meandering portion extending in a meandering manner from at least the non-heat generation region through the heat generation region to the non-heat generation region.
  • the plurality of electrodes have a linear portion having a predetermined line width and a first branch portion formed to be included in at least the non-heat generation region and branched from the linear portion,
  • the promoting portion is a first branch portion.
  • the thermal diffusion promoting portion can be configured by the first branch portion formed so as to be included in at least the non-heat generation region and branched from the linear portion.
  • the plurality of electrodes are formed so as to be at least included in the heat generation region, and have a second branch portion branched from the first branch portion.
  • the heat propagated from the heat generating portion 22 to the second branch portion can be propagated to the first branch portion and diffused in the surface direction of the electrode by the second branch portion.
  • the heat generating portion has a plurality of linear portions arranged at regular intervals, and the plurality of electrodes are formed to be at least included in the non-heat generating region, and one side is a linear portion. It has a rectangular heat dissipation part which makes a rectangular shape longer than width.
  • the minimum length between the plurality of rectangular heat dissipation portions is shorter than the distance between the plurality of linear portions, and the thermal diffusion promoting portion is a rectangular heat dissipation portion.
  • the rectangular heat radiation portion is formed to be spread in the surface direction of the electrode so as to be included in at least the non-heat generation region. Therefore, the heat that has propagated from the heat generating portion to the rectangular heat radiating portion can be diffused in the surface direction of the electrode by the rectangular heat radiating portion.
  • the heat generating portion has a plurality of linear portions arranged at regular intervals, and the plurality of electrodes are formed to be at least included in the non-heat generation region, and one side is a linear portion. It has a honeycomb heat dissipating part in a hexagonal shape longer than the width.
  • the minimum length between the plurality of honeycomb heat radiating portions is shorter than the distance between the plurality of linear portions, and the thermal diffusion promoting portion is a honeycomb heat radiating portion.
  • the honeycomb heat radiating portion is formed to be spread in the surface direction of the electrode so as to be included at least in the non-heat generation region. Therefore, the rectangular heat dissipation portion can diffuse the heat transmitted from the heat generating portion to the honeycomb heat dissipation portion in the surface direction of the electrode.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un dispositif de chauffage comprenant : un élément de chauffage plan (22) pour générer de la chaleur par excitation ; un circuit de détection (30) qui a une pluralité d'électrodes planes (241, 242) disposées sur une surface de l'élément chauffant et détectant un objet s'approchant ou venant en contact avec la pluralité d'électrodes sur la base d'un changement de la capacité électrostatique entre la pluralité d'électrodes ; et une unité de commande (40) pour commander l'excitation de l'élément chauffant sur la base des résultats de détection du circuit de détection. L'élément chauffant et la pluralité d'électrodes sont disposés parallèlement l'un à l'autre. Lorsque la pluralité d'électrodes et l'élément chauffant sont projetés dans une direction perpendiculaire à la pluralité d'électrodes et à l'élément chauffant, une zone chauffante où se trouve l'élément chauffant et une zone non chauffante qui ne contient pas d'élément chauffant sont formées. La pluralité d'électrodes a une partie de diffusion de chaleur (2412–2417, 2422–2427) conçue pour être incluse dans au moins la zone non chauffante et pour faciliter la diffusion de la chaleur transférée depuis l'élément chauffant dans la direction plane de la pluralité d'électrodes.
PCT/JP2018/037972 2017-10-17 2018-10-11 Dispositif de chauffage Ceased WO2019078090A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112018004573.0T DE112018004573B4 (de) 2017-10-17 2018-10-11 Heizvorrichtung
CN201880067147.9A CN111213431B (zh) 2017-10-17 2018-10-11 加热器装置
US16/842,207 US20200236740A1 (en) 2017-10-17 2020-04-07 Heater device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017201254 2017-10-17
JP2017-201254 2017-10-17
JP2018124916A JP7110764B2 (ja) 2017-10-17 2018-06-29 ヒータ装置
JP2018-124916 2018-06-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/842,207 Continuation US20200236740A1 (en) 2017-10-17 2020-04-07 Heater device

Publications (1)

Publication Number Publication Date
WO2019078090A1 true WO2019078090A1 (fr) 2019-04-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115399068A (zh) * 2020-04-17 2022-11-25 株式会社电装 加热器装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH027378A (ja) * 1988-06-24 1990-01-11 Matsushita Electric Ind Co Ltd 電気カーペット
JP2014000944A (ja) * 2012-05-23 2014-01-09 Denso Corp 輻射ヒータ装置
WO2014155915A1 (fr) * 2013-03-28 2014-10-02 株式会社デンソー Appareil d'élément chauffant
WO2016117376A1 (fr) * 2015-01-19 2016-07-28 株式会社デンソー Dispositif de chauffage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH027378A (ja) * 1988-06-24 1990-01-11 Matsushita Electric Ind Co Ltd 電気カーペット
JP2014000944A (ja) * 2012-05-23 2014-01-09 Denso Corp 輻射ヒータ装置
WO2014155915A1 (fr) * 2013-03-28 2014-10-02 株式会社デンソー Appareil d'élément chauffant
WO2016117376A1 (fr) * 2015-01-19 2016-07-28 株式会社デンソー Dispositif de chauffage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115399068A (zh) * 2020-04-17 2022-11-25 株式会社电装 加热器装置

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