WO2016117375A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
WO2016117375A1
WO2016117375A1 PCT/JP2016/050385 JP2016050385W WO2016117375A1 WO 2016117375 A1 WO2016117375 A1 WO 2016117375A1 JP 2016050385 W JP2016050385 W JP 2016050385W WO 2016117375 A1 WO2016117375 A1 WO 2016117375A1
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WIPO (PCT)
Prior art keywords
electrode wiring
heat
layer
wiring pattern
heater
Prior art date
Application number
PCT/JP2016/050385
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English (en)
Japanese (ja)
Inventor
公威 石川
史朗 坂東
近藤　宏司
多田　和夫
裕康 生出
康弘 佐合
関　秀樹
大賀　啓
栗林　信和
Original Assignee
株式会社デンソー
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Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to JP2016570564A priority Critical patent/JP6296175B2/ja
Publication of WO2016117375A1 publication Critical patent/WO2016117375A1/fr

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    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/267—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an organic material, e.g. plastic
    • 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

Definitions

  • the present disclosure relates to a heater device.
  • Patent Document 1 A conventionally known heater device is described in Patent Document 1, for example.
  • the heater device of Patent Document 1 has a plurality of heat radiating portions and a plurality of heat generating portions.
  • the heat generating part is formed in a thin plate shape.
  • the plurality of heat radiating portions are arranged in a distributed manner, and a low heat conducting portion is provided between two adjacent heat radiating portions. That is, the entire periphery of the heat radiating portion is surrounded by the low heat conducting portion, and thus the plurality of heat radiating portions are provided so as to be thermally separated from each other.
  • FIG. 21 shows a configuration example of a heater device including the heat generation layer 20 and the contact detection layer 30.
  • a predetermined voltage V1 is applied to the heat generating layer 20.
  • the heat generating layer 20 generates heat when a predetermined voltage V1 is applied.
  • the contact detection layer 30 includes an insulating substrate 31a, an electrode layer 331 having an electrode wiring pattern 331a formed on one surface side of the insulating substrate 31a, and an electrode layer 332 having an electrode wiring pattern 332a formed on the other surface side of the insulating substrate 31a. And. A large number of dot-shaped (that is, dot-shaped) detection resistors 31 having positive temperature characteristics (that is, PTC characteristics) are formed on the insulating substrate 31a. The electrode wiring pattern 331 a and the electrode wiring pattern 332 a are connected via the detection resistor 31.
  • the resistance value of the detection resistor 31 is large, so that no current flows between the electrode wiring patterns 331a and 332a. Further, when an object comes into contact with the heat generating layer 20 and the temperature of the heat generating layer 20 in the part in contact with the object decreases and the resistance value of the detection resistor 31 immediately below it decreases, the distance between the electrode wiring pattern 331a and the electrode wiring pattern 332a is reduced. Current flows through This change in the current value is detected as the contact of the object with the heat generating layer 20, and when it is detected that the object is in contact with the heat generating layer 20, the temperature of the heat generating layer 20 can be lowered.
  • Such a heater device has a configuration in which a large number of detection resistors 31 are provided in parallel between the electrode wiring pattern 331a and the electrode wiring pattern 332a. Therefore, when the electrode wiring pattern 331a and the electrode wiring pattern 332a are damaged and disconnected in the middle, an undetectable region where an object cannot be detected is created. In this case, even if an object comes into contact with this non-detectable region, a predetermined current does not flow between the electrode wiring pattern 331a and the electrode wiring pattern 332a, and it is erroneously detected that no object is in contact with the heat generating layer 20.
  • This disclosure has been made in view of the above points, and an object thereof is to prevent erroneous detection of an object due to disconnection of an electrode wiring pattern.
  • a heater device includes: A contact detection layer having a pair of electrode wiring patterns for detecting contact with the heater surface that generates heat when energized; A disconnection determination unit that determines disconnection of the electrode wiring pattern based on a current value flowing between the both ends of the electrode wiring pattern when a predetermined voltage is applied between both ends of the at least one electrode wiring pattern;
  • the disconnection determination unit disconnects the electrode wiring pattern based on the current value flowing between both ends of the electrode wiring pattern when a predetermined voltage is applied between both ends of the electrode wiring pattern. Determine. Therefore, erroneous detection of an object due to disconnection of the electrode wiring pattern can be prevented.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is a top view for demonstrating the heat delivery path
  • FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG.
  • FIG. 5B is a cross-sectional view taken along the line VC-VC in FIG. 5A, and is a first view showing a cross section formed around the heat dissipating part 23 of FIG. 5B.
  • FIG. 5B is a cross-sectional view taken along line VD-VD in FIG. 5A, and is a second view showing a cross section formed around the heat dissipating portion 23 of FIG. 5B. It is a figure for demonstrating the said heater part of the heater apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the contact detection layer of the heater apparatus which concerns on 1st Embodiment.
  • FIG. 8 is a schematic sectional view taken along line VIII-VIII in FIG. It is the figure which showed the positional relationship of an upper layer electrode, a lower layer electrode, and detection resistance. It is a figure for demonstrating the synthetic resistance of the detection resistance at the time of low temperature.
  • the heater device 10 is a radiation heater device. And the heater apparatus 10 is installed in the room
  • the heater device 10 constitutes a part of a room heating device.
  • the heater device 10 is an electric heater that generates heat by being fed from a power source such as a battery or a generator mounted on a road vehicle.
  • the heater device 10 is formed in a thin plate shape.
  • the heater device 10 radiates radiant heat H mainly in a direction perpendicular to the surface in order to warm an object positioned in a direction perpendicular to the surface.
  • the seat 11 for the passenger 12 to sit is installed in the passenger compartment.
  • the heater device 10 is installed in the room so as to radiate radiant heat H to the feet of the occupant 12.
  • the heater device 10 can be used as a device for immediately providing warmth to the occupant 12 immediately after activation of another heating device, for example.
  • the heater device 10 is installed so as to face the occupant 12 in the assumed normal posture.
  • the road traveling vehicle has a steering column 14 for supporting the handle 13.
  • the heater device 10 can be installed on the lower side of the steering column 14 so as to face the occupant 12.
  • FIG. 2 shows a configuration of the heater device 10 in the present embodiment.
  • the heater device 10 includes a heat generation layer 20 corresponding to the heater surface, and a contact detection layer 30 that detects contact of an object with the heat generation layer 20.
  • the contact detection layer 30 is provided so as to be laminated with the heat generating layer 20.
  • the heat generating layer 20 extends along the XY plane defined by the axis X and the axis Y.
  • the heat generating layer 20 has a thickness in the axis Z direction.
  • the heat generating layer 20 is formed in a substantially rectangular thin plate shape.
  • the heat generating layer 20 includes a substrate portion 21, a plurality of heat radiating portions 23, a plurality of heat generating portions 24, and a pair of terminals 27.
  • the heat generating layer 20 can also be called a planar heater that radiates radiant heat R mainly in a direction perpendicular to the surface.
  • the substrate portion 21 is made of a resin material that provides excellent electrical insulation and withstands high temperatures.
  • the substrate unit 21 is a multilayer substrate.
  • the substrate unit 21 includes a front surface layer 21a, a back surface layer 21b, and an intermediate layer 21c.
  • the surface layer 21a faces the radiation direction of the radiant heat R.
  • the surface layer 21a is a surface that is disposed to face a part of the occupant 12 that is the object to be heated in the installed state of the heat generating layer 20.
  • the back layer 21 b is located on the back side of the heat generating layer 20.
  • the back surface layer 21 b is in contact with the contact detection layer 30.
  • the intermediate layer 21 c supports the heat radiating part 23 and the heat generating part 24.
  • the substrate unit 21 is a member for supporting the plurality of heat dissipation units 23.
  • Each of the plurality of heat dissipating parts 23 is made of a material having high thermal conductivity. Furthermore, the heat radiation part 23 is made of an excellent electric conductor, that is, a material having a low electric resistance. The heat radiation part 23 can be made of a metal material.
  • Each of the plurality of heat radiating portions 23 is formed in a thin plate shape parallel to the surface of the substrate portion 21.
  • One heat radiating part 23 can radiate radiant heat R by heat supplied by energization.
  • One heat radiating part 23 can radiate radiant heat R that makes the occupant 12, that is, a person feel warm, by being heated to a predetermined radiation temperature.
  • the volume of one heat radiating part 23 is set so that the heat radiating part 23 can reach a temperature at which the heat radiating part 23 can radiate the radiant heat R by heat supplied from the heat generating part 24.
  • the volume of one heat radiating part 23 is set so that the temperature of the heat radiating part 23 rises rapidly due to the heat supplied from the heat generating part 24.
  • the volume of one heat radiating portion 23 is set to be small so that a rapid temperature drop is caused by heat radiating to an object in contact with the surface of the heat generating layer 20.
  • the thickness of one heat radiating portion 23 is set to be thin in order to maximize the area parallel to the surface and minimize the volume.
  • the area of one heat radiating part 23 is set to a size suitable for radiating radiant heat R.
  • the area of one heat radiating part 23 is set smaller than an object positioned facing the surface of the heat generating layer 20, for example, a part of the occupant 12.
  • One heat dissipating part 23 of this embodiment is formed in a quadrangle in the XY plane. Even if the heat radiating portion 23 itself is energized, it does not generate heat that generates radiant heat R enough to make the occupant 12 feel warm.
  • the heat radiation part 23 is a member only for heat radiation that does not generate heat.
  • the plurality of heat dissipating parts 23 are distributed with respect to the surface of the substrate part 21.
  • the plurality of heat radiating portions 23 are arranged in a distributed manner on the surface that radiates the radiant heat R.
  • the plurality of heat radiation portions 23 are arranged so as not to overlap each other.
  • the plurality of heat dissipating parts 23 are arranged away from each other.
  • the plurality of heat radiating portions 23 are regularly arranged so as to occupy a predetermined area on the XY plane in the drawing.
  • the plurality of heat dissipation portions 23 can be referred to as a heat dissipation portion array.
  • the plurality of heat radiation portions 23 are arranged so as to form an n ⁇ n grid with respect to the surface of the substrate portion 21.
  • the plurality of heat radiating portions 23 are distributed along a rule set in advance with respect to the surface of the substrate portion 21.
  • the plurality of heat radiating portions 23 are arranged on one or a plurality of energization paths formed between the pair of terminals 27. In the illustrated example, the plurality of heat dissipating parts 23 are arranged on a meandering energizing path.
  • the plurality of heat radiating portions 23 are embedded in the substrate portion 21. Specifically, the plurality of heat radiation portions 23 are disposed between the surface layer 21a and the intermediate layer 21c. Therefore, the plurality of heat radiating portions 23 are not exposed on the surface of the substrate portion 21. The plurality of heat radiating portions 23 are protected by the substrate portion 21.
  • Each of the plurality of heat generating portions 24 is made of a material that generates heat when energized.
  • the heat generating part 24 can be made of a metal material.
  • the plurality of heat generating portions 24 are also arranged in a distributed manner with respect to the surface of the substrate portion 21, similarly to the plurality of heat radiating portions 23.
  • the heat generating part 24 is arranged between two adjacent heat radiating parts 23, 23 and is connected to the two adjacent heat radiating parts 23, 23. Therefore, the heat generating part 24 is a member that is thermally connected to the heat radiating part 23 and generates heat when energized.
  • the heat generating part 24 and the heat radiating part 23 are connected so that heat can be transferred. Thereby, the heat generated by the heat generating part 24 is directly transmitted to the directly connected heat radiating part 23.
  • the heat generated by one heat generating portion 24 is transmitted to other heat radiating portions 23 located apart via a member such as the substrate portion 21. Furthermore, the heat generating part 24 and the heat radiating part 23 are also electrically connected. At least two heat generating parts 24 are connected to one heat radiating part 23.
  • the plurality of heat generating portions 24 and the plurality of heat radiating portions 23 form a series of energization paths between the pair of terminals 27.
  • the heat generating portion 24 is formed to have a small cross-sectional area along the energization direction in order to concentrate the current.
  • the heat generating portion 24 is formed so as to reduce the cross-sectional area between the two adjacent heat radiating portions 23 in order to suppress heat transfer between the two adjacent heat radiating portions 23.
  • the heat generating part 24 is thicker than the heat radiating part 23.
  • the width of the heat generating portion 24 in the XY plane is smaller than the width of the heat radiating portion 23.
  • the width of the heat generating part 24 in the XY plane is smaller than half the width of the heat radiating part 23.
  • the length of the heat generating portion 24 is set to have a predetermined length in order to obtain a predetermined heat generation amount.
  • the length of the heat generating part 24 is set long in order to suppress heat transfer between two adjacent heat radiating parts 23. As a result, the heat generating portion 24 is given an elongated shape in the XY plane.
  • One heat generating portion 24 of this embodiment is formed so as to fill between the two adjacent heat radiating portions 23, 23 and also be positioned below the two adjacent heat radiating portions 23, 23.
  • the heat generating part 24 also radiates radiant heat R. However, since the area of the heat generating portion 24 in the XY plane is small, the radiation amount of the radiant heat R is small.
  • the heat generating part 24 is a member for heat generation and heat dissipation.
  • the number of heat dissipating parts 23 and the number of heat generating parts 24 are substantially equal. As a result, the amount of heat substantially equal to the amount of heat generated by one heat generating portion 24 is given to one heat radiating portion 23.
  • the heat generated by one heat generating portion 24 and supplied to the heat radiating portion 23 is set so that the temperature of the associated one heat radiating portion 23 can reach the radiation temperature.
  • the low heat conduction part 26 is mainly composed of a material constituting the substrate part 21.
  • the low heat conducting portion 26 surrounds the entire circumference of one heat radiating portion 23 in the XY plane.
  • the low heat conduction part 26 surrounding one heat dissipation part 23 suppresses the inflow of heat from the surroundings to the heat dissipation part 23. All the heat dissipating parts 23 are surrounded by the low heat conducting part 26 on the entire circumference.
  • the low heat conduction part 26 provides a thermal barrier between the plurality of heat radiation parts 23 by surrounding the entire circumference of all the heat radiation parts 23.
  • the low heat conducting unit 26 thermally separates the plurality of heat dissipating units 23 from each other.
  • the low heat conduction part 26 surrounding one specific heat radiation part 23 suppresses heat conduction from the periphery of the specific heat radiation part 23 to the specific heat radiation part 23.
  • a specific heat radiation unit group can be assumed on the heat generation layer 20.
  • the specific heat radiating portion group is a group of a plurality of heat radiating portions 23 positioned as a group.
  • the low heat conduction unit 26 surrounding the specific heat dissipation unit group suppresses heat conduction from the periphery of the specific heat dissipation unit group to the specific heat dissipation unit group.
  • the low heat conduction part 26 is arrange
  • a first low heat conducting portion 261 having only the substrate portion 21 is formed.
  • the first low heat conducting portion 261 is formed on at least two sides of one heat radiating portion 23.
  • a second low heat conducting part 262 having a substrate part 21 and a heat generating part 24 is formed.
  • the second low heat conducting portion 261 is formed on at least one side of one heat radiating portion 23.
  • the two first low heat conducting parts 261 and the two second low heat conducting parts 262 surround the heat dissipating part 23.
  • FIG. 5B shows a cross section including one heat radiation part 23 shown in FIG. 5A which is a plan view.
  • 5C and 5D each show a cross section formed around the heat dissipating part 23.
  • FIG. 5A the main heat transfer directions are indicated by arrows.
  • the first low thermal conductive portion 261 shown in cross section in FIG. 5D is composed of only the materials 21 a, 21 b, and 21 c constituting the substrate portion 21. Therefore, the average thermal conductivity K61 in the first low thermal conductivity portion 261 can be obtained based on the thermal conductivity of the substrate portion 21.
  • the average thermal conductivity K62 in the second low thermal conductivity portion 262 can be obtained based on the thermal conductivity of the substrate portion 21 and the thermal conductivity of the heat generating portion 24.
  • the average thermal conductivity K3R in the cross section traversing the heat radiating portion 23 (that is, the cross section shown as FIG. 5B) can be obtained based on the thermal conductivity of the substrate portion 21 and the thermal conductivity of the heat radiating portion 23.
  • the thermal conductivity K2 of the resin material forming the substrate portion 21 is much lower than the thermal conductivity K3 of the material providing the heat radiating portion 23 and the thermal conductivity K4 of the material providing the heat generating portion 24. That is, K2 ⁇ K3 and K2 ⁇ K4. Furthermore, the thermal conductivity K4 of the material that provides the heat generating portion 24 is lower than the thermal conductivity K3 of the material that provides the heat radiating portion 23. That is, K4 ⁇ K3.
  • the thermal conductivity K62 is larger than the thermal conductivity K61. That is, K61 ⁇ K62.
  • the thermal conductivity K3R is much larger than the thermal conductivity K61 and the thermal conductivity K62. That is, K61 ⁇ K3R and K62 ⁇ K3R.
  • the materials and dimensions are set so that KP ⁇ K3R. That is, the average thermal conductivity K3R in the cross section traversing the heat radiating portion 23 (that is, the cross section shown as FIG. 5B) is larger than the thermal conductivity KP of the entire circumference surrounding the heat radiating portion 23.
  • the amount of heat generated by the heat generating portion 24 is set so that a predetermined radiation temperature is obtained on the surface of the surface layer 21 a on the heat radiating portion 23 when no object is in contact with the surface of the heat generating layer 20. Thereby, the radiant heat R which can give warmth to the passenger
  • the amount of heat generated by the heat generating unit 24 can be adjusted by the material, size, and current value of the heat generating unit 24.
  • the contact detection layer 30 has an insulating substrate 31a.
  • the insulating substrate 31a is made of a resin having excellent insulating properties.
  • a rectangular wave electrode wiring pattern 332a is formed on the surface of the insulating substrate 31a on the heat generating layer 20 side. Further, a rectangular wave electrode wiring pattern 331a is formed on one surface side of the insulating substrate 31a. Further, when viewed from the normal direction of the insulating substrate 31a, the electrode wiring pattern 331a and the electrode wiring pattern 332a cross each other so as to be orthogonal to each other.
  • a large number of dot-shaped (that is, dot-shaped) detection resistors 31 having positive temperature characteristics are provided at portions where the electrode wiring pattern 331a and the electrode wiring pattern 332a intersect. These detection resistors 31 are arranged in a grid pattern.
  • the electrode wiring pattern 331 body part a and the electrode wiring pattern 332 a are connected via the detection resistor 31. That is, the electrode wiring pattern 332a and the electrode wiring pattern 331a are arranged so as to overlap in the stacking direction (that is, the thickness direction of the contact detection layer 30) with a predetermined interval.
  • the lamination direction is a lamination direction of the heat generating layer 20 and the contact detection layer 30.
  • the thickness direction of the contact detection layer 30 is also the thickness direction of the heat generating layer 20.
  • FIGS. 10 to 12 are equivalent circuits of the contact detection layer 30.
  • a predetermined voltage is applied between the electrode wiring pattern 331a and the electrode wiring pattern 332a.
  • the resistance value of each detection resistor 31 is small as shown in FIG. A current I flows between the wiring pattern 331a and the electrode wiring pattern 332a.
  • the resistance values of the detection resistors 31 are equal.
  • the resistance value of the detection resistor 31 is R (PTC, 1) and the number of the detection resistors 31 is n
  • the combined resistance of each detection resistor 31 increases as shown in FIG. As a result, the electrode wiring pattern 331a and the electrode wiring pattern 332a are insulated. That is, no current flows between the electrode wiring pattern 331a and the electrode wiring pattern 332a.
  • the temperature coefficient of the resistance of the detection resistor 31 is ⁇
  • the temperature of the contacted portion decreases.
  • a predetermined temperature for example, Curie temperature
  • the combined resistance value of each detection resistor 31 decreases rapidly, and between the electrode wiring patterns 331a and 332a Current I flows.
  • the combined resistance R touch when the temperature of one sensing resistor 31 is lower than a predetermined temperature can be expressed as (n ⁇ / (n ⁇ 1) + ⁇ ) R min .
  • the temperature of the detection resistor 31 of the contact detection layer 30 is lower than a predetermined temperature (for example, Curie temperature), and the combined resistance of the detection resistor 31 is relatively small.
  • R min a predetermined temperature
  • the temperature of the detection resistor 31 of the contact detection layer 30 becomes higher than a predetermined temperature (for example, Curie temperature) due to heat generation of the heat generation layer 20, the combined resistance of the detection resistor 31 becomes a relatively large Rmax .
  • the object F for example, a user's finger
  • the combined resistance R touch at the time of contact is an intermediate value between the combined resistance R min at the low temperature and the combined resistance R max at the high temperature.
  • the heater device 10 detects contact of an object based on the change in the resistance value.
  • FIG. 14 shows a block configuration diagram of the heater device 10.
  • the heater device 10 includes a heater temperature sensor 25, an operation unit 50, a heat generating unit 24, a detection resistor 31, a switching mechanism 42, and a control unit 40.
  • the heater temperature sensor 25 is provided in the center of the heat generating layer 20, for example, and outputs a temperature signal corresponding to the temperature of the heat generating layer 20 to the control unit 40.
  • the heater temperature sensor 25 can be configured using, for example, a thermistor.
  • the operation unit 50 includes various switches such as a power switch, and outputs a signal corresponding to a user's operation on the various switches to the control unit 40.
  • the switching mechanism 42 switches the wiring connected to the electrode wiring patterns 331a and 332a.
  • the switching mechanism 42 will be described in detail later.
  • the control unit 40 is configured as a computer including a CPU, a ROM, a RAM, an I / O, and the like, and the CPU performs various processes according to a program stored in the ROM.
  • the heater device 10 includes a contact detection mode for detecting contact of an object with the heat generating layer 20, an upper layer disconnection detection mode for detecting disconnection of the electrode wiring pattern 331a, and a lower layer disconnection detection mode for detecting disconnection of the electrode wiring pattern 332a. And have.
  • the control unit 40 controls the switching mechanism 42 to switch each detection mode.
  • the switching mechanism 42 includes changeover switches 42a and 42b and resistors 41a and 41b.
  • the changeover switches 42a and 42b are switched according to control by the control unit 40, respectively.
  • the control unit 40 controls the changeover switch 42a so that the electrode wiring pattern 331a is connected to the power source + V, and the resistor 41b connected to the electrode wiring pattern 332a is grounded.
  • the changeover switch 42b is controlled so as to be performed. Thereby, the voltage of the power source + V is applied between the electrode wiring pattern 331a and the electrode wiring pattern 332a, and the contact of the object with the heat generating layer 20 can be detected.
  • the control unit 40 controls the changeover switch 42a so that the electrode wiring pattern 331a is connected to the power source + V, and the resistor 41a connected to the electrode wiring pattern 331a is connected.
  • the changeover switch 42b is controlled so as to be grounded. Thereby, the voltage of the power source + V is applied between both ends of the electrode wiring pattern 331a.
  • the control unit 40 controls the changeover switch 42a so that the electrode wiring pattern 332a is connected to the power source + V, and the resistor 41b connected to the electrode wiring pattern 332a is connected.
  • the changeover switch 42b is controlled so as to be grounded. Thereby, the voltage of the power source + V is applied between both ends of the electrode wiring pattern 332a.
  • the control unit 40 of the heater device 10 causes the temperature detected by the heater temperature sensor 25 to be a predetermined target temperature (for example, 100 ° C.). Energization of the heat generating layer 20 is started. Further, the control unit 40 performs energization control of the heat generating layer 20 while switching between the contact detection mode, the upper layer disconnection detection mode, and the lower layer disconnection detection mode.
  • each control step in the flowchart of each drawing comprises the various function implementation
  • the mode is changed to the contact detection mode. Specifically, the switching mechanism 42 is controlled so that the wiring is as shown in FIG. Thereby, the voltage of the power source + V is applied between the electrode wiring pattern 331a and the electrode wiring pattern 332a, and the contact of the object with the heat generating layer 20 can be detected.
  • the electrode wiring pattern 332a when the electrode wiring pattern 332a is not disconnected, a predetermined current flows through the resistor 41b. In this case, the voltage between the terminals of the resistor 41b is equal to or higher than the reference value, and it is determined that the lower layer electrode (that is, the electrode wiring pattern 332a) is not disconnected. Further, when the electrode wiring pattern 332a is disconnected, a predetermined current does not flow through the resistor 41b. In this case, the voltage between the terminals of the resistor 41b is less than the reference value, and it is determined that the lower layer electrode (that is, the electrode wiring pattern 332a) is disconnected.
  • energization control to the heat generating layer 20 is performed while switching the contact detection mode, the upper layer disconnection detection mode, and the lower layer disconnection detection mode.
  • the heater control temperature is lowered. Specifically, the target temperature is lowered to a predetermined temperature (for example, 60 ° C.), and energization to the heat generating layer 20 is controlled so that the temperature detected by the heater temperature sensor 25 approaches the target temperature.
  • a predetermined temperature for example, 60 ° C.
  • heat generation is performed when it is determined in S106 whether non-contact of the object with the heat generating layer 20 is detected. If the contact of the object with the layer 20 is continued, the determination in S106 is NO. If the determination in S106 is NO, a decrease in the heater control temperature is maintained in S120.
  • the determination in S124 is YES, and the heater is stopped in S118. Specifically, energization to the heat generating layer 20 is stopped, and this process is terminated.
  • the determination in S128 is YES, and the heater is stopped in S118. Specifically, energization to the heat generating layer 20 is stopped, and this process is terminated.
  • the electrode wiring patterns 331a and 332a are disconnected based on a current value flowing between both ends of the electrode wiring patterns 331a and 332a. Determine. Therefore, erroneous detection of an object due to disconnection of the electrode wiring pattern can be prevented.
  • a resistor 31 whose resistance value changes with a temperature change is provided between the pair of electrode wiring patterns. Therefore, when a predetermined voltage is applied between the pair of electrode wiring patterns 331a and 332a, the contact of the object to the contact detection layer 30 is detected based on the current value flowing between the pair of electrode wiring patterns 331a and 332a. can do.
  • the pair of electrode wiring patterns 331a and 332a are arranged so that part or all of them overlap with each other in the stacking direction (that is, the thickness direction of the contact detection layer 30) at a predetermined interval.
  • the detection resistor 31 is provided between the electrode wiring patterns 331a and 332a arranged so as to overlap in the stacking direction. Therefore, even if one of the electrode wiring patterns 331a and 332a receives an external force, the impact on the detection resistor 31 is alleviated, and failure due to damage to the detection resistor 31 can be reduced.
  • the contact detection layer 30 when the contact detection layer 30 is viewed from the normal direction to the surface 30a of the contact detection layer 30, a part of the pair of electrode wiring patterns 331a and 332a intersect each other.
  • the detection resistor 31 is provided at the intersecting portion of the electrode wiring patterns 331a and 332a. Accordingly, it is possible to reduce the amount of the members constituting the detection resistor 31 and to realize cost reduction.
  • the surface 30a of the contact detection layer 30 is a surface of the contact detection layer 30 alone.
  • the surface 30a of the contact detection layer 30 corresponds to the boundary surface between the heat generating layer 20 and the contact detection layer 30 in the heater device 10, for example, as shown in FIG.
  • the heater device 10 includes a switching mechanism 42. Then, the switching mechanism 42 is arranged between a pair of electrode wiring patterns 331a and 332a for detecting a contact between the wiring for applying a predetermined voltage between both ends of the electrode wiring patterns 331a and 332a and the heating layer 20. The wiring to which a predetermined voltage is applied is switched. Therefore, switching of those wirings can be performed quickly.
  • the heater device 10 according to the first embodiment is formed such that the electrode wiring pattern 331a and the electrode wiring pattern 332a are orthogonally intersected when viewed from the normal direction of the contact detection layer 30.
  • the heater device 10 of the present embodiment is formed such that the electrode wiring pattern 331a and the electrode wiring pattern 332a are parallel to each other.
  • the electrode wiring pattern 331a and the electrode wiring pattern 332a are parallel to each other, and the electrode wiring pattern 332a and the detection resistor 31 are protected by the electrode wiring pattern 331a.
  • the heater device 10 In the above-described embodiment, the example in which the heater device 10 is installed in a room of a road traveling vehicle is shown. However, the heater device 10 can be installed in a room of a moving body such as a ship or an aircraft.
  • the configuration in which the heat generating layer 20 that generates heat when energized is used as the heater surface is shown.
  • one of the pair of electrode wiring patterns 331a and electrode wiring patterns 332a is used as the heater. It can also be configured to be a surface.
  • the resistance values of the electrode wiring patterns 331 a and 332 a serving as the heater surface may be set to the same resistance value as that of the heat generating portion 24 of the heat generating layer 20.
  • the heat generation layer 20 is unnecessary.
  • a resistor 41a is provided between the electrode wiring pattern 331a and the changeover switch 42b, and a resistor 41b is provided between the electrode wiring pattern 332a and the changeover switch 42b.
  • a resistor may be provided between the changeover switch 42b and the installation terminal instead of the resistors 41a and 41b. With such a configuration, the number of parts can be reduced.
  • the heat generation layer 20 and the contact detection layer 30 are independent layers, but the heat generation layer 20 and the contact detection layer 30 may be disposed on the front and back of one layer, and the wiring of the heat generation layer 20
  • the electrode wiring pattern of the contact detection layer 30 may be arranged in parallel to form a single layer.
  • the temperature of the heat generating layer is detected by the resistor having the positive temperature characteristic (that is, the PTC characteristic), but the NTC characteristic member having the NTC characteristic and the CTR characteristic are provided.
  • the temperature of the heat generating layer may be detected by a CTR characteristic member.
  • the contact of the object with the heat generating layer 20 is detected based on the current value flowing between the electrode pattern 331a and the electrode pattern 332a connected via the detection resistor 31.
  • the contact of the object with the heat generating layer 20 may be detected using a pressure-sensitive sensor that detects the pressure of the object on the heat generating layer 20.
  • the arrangement form of the heat generating portion 24 and the heat radiating portion 23 in the heat generating layer 20 has been described with respect to the example in which the heat generating portion 24 is disposed between the adjacent heat radiating portions 23, but is not limited thereto.
  • S110 to S116 and S122 to S128 correspond to a contact detection unit.
  • S102 and S106 correspond to a disconnection determination unit.
  • the switching mechanism 42 corresponds to a wiring switching unit.
  • S118 corresponds to an energization cutoff unit.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

L'invention porte sur un dispositif de chauffage qui est pourvu d'une couche de détection de contact (30) et d'une unité de détermination de déconnexion (S102, S106). Cette couche de détection de contact présente une paire de motifs de câblage d'électrode (331a, 332a) pour détecter un contact sur une surface de chauffage qui génère de la chaleur, par mise sous tension. En outre, lorsqu'une tension prédéterminée est appliquée entre les deux extrémités d'au moins un des motifs de câblage d'électrode, l'unité de détermination de déconnexion détermine, sur la base de la valeur du courant circulant entre les deux extrémités de ce motif de câblage d'électrode, la présence d'une déconnexion dans le motif de câblage d'électrode.
PCT/JP2016/050385 2015-01-22 2016-01-07 Dispositif de chauffage WO2016117375A1 (fr)

Priority Applications (1)

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JP2016570564A JP6296175B2 (ja) 2015-01-22 2016-01-07 ヒータ装置

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JP2015010523 2015-01-22
JP2015-010523 2015-01-22

Publications (1)

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JP (1) JP6296175B2 (fr)
WO (1) WO2016117375A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017104343A1 (fr) * 2015-12-17 2017-06-22 株式会社デンソー Dispositif de chauffage
JP2019156162A (ja) * 2018-03-13 2019-09-19 株式会社デンソー ヒータ装置
CN112513531A (zh) * 2018-08-07 2021-03-16 株式会社电装 加热器装置
WO2023007628A1 (fr) * 2021-07-28 2023-02-02 株式会社新川 Dispositif de détection d'anomalie dans un circuit électrique

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JPH05121147A (ja) * 1991-10-29 1993-05-18 Fuji Electric Co Ltd 負荷ヒータ断線検出装置
JP2001015247A (ja) * 1999-07-01 2001-01-19 Matsushita Electric Ind Co Ltd ヒータ断線検出方法およびその装置
JP2004150232A (ja) * 2002-11-01 2004-05-27 Taishin Seisakusho:Kk 水道凍結防止体
JP2004226373A (ja) * 2003-01-27 2004-08-12 Denso Corp 断線検出装置
JP2005166327A (ja) * 2003-12-01 2005-06-23 Omron Corp 温度調節器
JP2006172129A (ja) * 2004-12-15 2006-06-29 Canon Electronics Inc 携帯端末装置及びその使用許可方法、並びにプログラム及び記憶媒体
JP2014003000A (ja) * 2012-05-23 2014-01-09 Denso Corp 輻射ヒータ装置
JP2014189251A (ja) * 2013-03-28 2014-10-06 Denso Corp 輻射ヒータ装置
JP2014190674A (ja) * 2013-03-28 2014-10-06 Denso Corp ヒータ装置
JP2014205372A (ja) * 2013-04-10 2014-10-30 株式会社デンソー 輻射ヒータ装置
JP2014208515A (ja) * 2013-03-29 2014-11-06 株式会社デンソー 輻射ヒータ装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121147A (ja) * 1991-10-29 1993-05-18 Fuji Electric Co Ltd 負荷ヒータ断線検出装置
JP2001015247A (ja) * 1999-07-01 2001-01-19 Matsushita Electric Ind Co Ltd ヒータ断線検出方法およびその装置
JP2004150232A (ja) * 2002-11-01 2004-05-27 Taishin Seisakusho:Kk 水道凍結防止体
JP2004226373A (ja) * 2003-01-27 2004-08-12 Denso Corp 断線検出装置
JP2005166327A (ja) * 2003-12-01 2005-06-23 Omron Corp 温度調節器
JP2006172129A (ja) * 2004-12-15 2006-06-29 Canon Electronics Inc 携帯端末装置及びその使用許可方法、並びにプログラム及び記憶媒体
JP2014003000A (ja) * 2012-05-23 2014-01-09 Denso Corp 輻射ヒータ装置
JP2014189251A (ja) * 2013-03-28 2014-10-06 Denso Corp 輻射ヒータ装置
JP2014190674A (ja) * 2013-03-28 2014-10-06 Denso Corp ヒータ装置
JP2014208515A (ja) * 2013-03-29 2014-11-06 株式会社デンソー 輻射ヒータ装置
JP2014205372A (ja) * 2013-04-10 2014-10-30 株式会社デンソー 輻射ヒータ装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017104343A1 (fr) * 2015-12-17 2017-06-22 株式会社デンソー Dispositif de chauffage
JP2019156162A (ja) * 2018-03-13 2019-09-19 株式会社デンソー ヒータ装置
WO2019176721A1 (fr) * 2018-03-13 2019-09-19 株式会社デンソー Appareil de chauffage
CN112513531A (zh) * 2018-08-07 2021-03-16 株式会社电装 加热器装置
WO2023007628A1 (fr) * 2021-07-28 2023-02-02 株式会社新川 Dispositif de détection d'anomalie dans un circuit électrique

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