Heating element device, heating element mounted structure, temperature control circuit, temperature control apparatus, and module
First Claim
1. A heating element device comprising a laminate of a plurality of heating element plates, each of the heating element plates comprising an insulator and a resistor, capable of generating heat upon the supply of electric power, provided on the insulator, said plurality of heating element plates being each independently controllable with respect to energization;
- whereinsaid resistor is provided on both sides of the insulator in said plurality of heating element plates.
1 Assignment
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Accused Products
Abstract
A heating element device has a laminate of a plurality of heating element plates, each of the heating element plates having an insulator and a resistor, which is capable of generating heat upon the supply of electric power, provided on the insulator. The plurality of heating element plates are each independently controllable with respect to energization. The heating element device also has a temperature detection plate having an insulator and a resistor, capable of undergoing a change in resistance value upon a change in temperature, provided on the insulator.
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Citations
45 Claims
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1. A heating element device comprising a laminate of a plurality of heating element plates, each of the heating element plates comprising an insulator and a resistor, capable of generating heat upon the supply of electric power, provided on the insulator, said plurality of heating element plates being each independently controllable with respect to energization;
- wherein
said resistor is provided on both sides of the insulator in said plurality of heating element plates. - View Dependent Claims (3, 4, 6, 7, 8)
- wherein
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2. A heating element device comprising a laminate of
a plurality of heating element plates, each of the heating element plates comprising an insulator and a resistor, capable of generating heat upon the supply of electric power, provided on the insulator, wherein, in said plurality of heating element plates, the resistor is provided on both sides of the insulator said plurality of heating element plates being each independently controllable with respect to energization, and a temperature detection plate comprising an insulator and a resistor, capable of undergoing a change in resistance value upon a change in temperature, provided on the insulator.
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9. A temperature control circuit comprising:
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temperature data input means for inputting temperature data for measuring the temperature of an object to be heated;
energization means for energizing a plurality of resistors capable of generating heat upon being energized independently of each other or one another, wherein said resistors are provided on both sides of an insulator; and
switching means for changing the number of resistors to be energized in the plurality of resistors depending upon the temperature indicated by the temperature data fed by the temperature data input means and for controlling said resistors with respect to energization. - View Dependent Claims (11, 13)
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10. A temperature control circuit comprising:
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temperature detection means for permitting the input of resistance values of a second resistor which, together with a plurality of first resistors capable of generating heat upon being energized, constitutes a laminate and for detecting, based on a change in the resistance value, the temperature of an object to be heated, said object having been fixed onto the laminate of the first and second resistors;
energization means for energizing said plurality of first resistors independently of each other or one another; and
switching means for changing the number of resistors to be energized in the plurality of first resistors depending upon the temperature detected by the temperature detection means and for controlling said first resistors with respect to energization. - View Dependent Claims (12, 14)
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15. A temperature control apparatus comprising:
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a heating element device formed of a laminate of a plurality of resistors capable of generating heat upon being energized, wherein said resistors are provided on both sides of an insulator;
an object to be heated, said object having been mounted directly or indirectly onto the heating element device;
detection temperature input means for inputting the temperature of the object to be heated;
energization means for energizing said plurality of resistors constituting the heating element device independently of each other or one another; and
switching means for changing the number of resistors to be energized in the plurality of resistors depending upon the temperature input by the detection temperature input means and for controlling said resistors with respect to energization. - View Dependent Claims (17)
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16. A temperature control apparatus comprising:
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a heating element device formed of a laminate of a plurality of first resistors capable of generating heat upon being energized and a second resistor for detecting a change in resistance value caused by a change in temperature, wherein said first resistors are provided on both sides of an insulator;
an object to be heated, said object having been mounted directly or indirectly onto the heating element device;
detection temperature input means for inputting the temperature of the object to be heated;
energization means for energizing said plurality of first resistors constituting the heating element device independently of each other or one another;
detection temperature input means for inputting the resistance value of the second resistor; and
switching means for changing the number of resistors to be energized in the plurality of first resistors depending upon the temperature input by the detection temperature input means and for controlling said resistors with respect to energization. - View Dependent Claims (18)
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19. A temperature control apparatus comprising:
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a plurality of heating elements for supplying thermal energy to a predetermined site;
a plurality of switching circuits having respective intrinsic internal resistances which are provided in a one-to-one relationship with said plurality of heating elements;
temperature detection means for detecting the temperature of the predetermined site;
switching circuit driving form determination means for determining the on/off state of each switching circuit based on the relationship between the total thermal energy supplied to the predetermined site from all of said plurality of heating elements and energy loss derived from internal resistance of the switching circuit to be energized so that the proportion of the total thermal energy loss of all of the switching circuits relative to each temperature detected by said temperature detection means is minimized; and
switching circuit driving control means for controlling the on/off state of said plurality of switching circuits according to the temperature detected by said temperature detection means based on the result of determination in said switching circuit driving form determination means. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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20. A temperature control apparatus comprising:
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a plurality of heating elements for supplying thermal energy to a predetermined site, said plurality of heating elements having been divided into a plurality of heating element groups;
a plurality of switching circuits having respective intrinsic internal resistances which are provided in a one-to-one relationship with said plurality of heating element groups;
temperature detection means for detecting the temperature of the predetermined site;
switching circuit driving form determination means for determining the on/off state of each switching circuit based on the relationship between the total thermal energy supplied to the predetermined site from all of said plurality of heating elements and energy loss derived from internal resistance of the switching circuit to be energized so that the proportion of the total thermal energy loss of all of the switching circuits relative to each temperature detected by said temperature detection means is minimized; and
switching circuit driving control means for controlling the on/off state of said plurality of switching circuits according to the temperature detected by said temperature detection means based on the result of determination in said switching circuit driving form determination means.
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31. A module comprising a heating element mounted structure,
said heating element mounted strictured comprising: - a board;
a heating element device fixed onto said board and capable of generating beat upon being energized; and
an object to be heated which has been fixed onto said heating element device, wherein individual elements of said heating element are provided on both sides of said board.
- a board;
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32. A module comprising a heating element mounted structure,
said heating element mounted structure comprising: - a board;
a heating element device fixed onto said board and capable of generating heat upon being energized, wherein individual elements of said heating element device are provided on both sides of said board;
a heat-conductive substrate fixed onto said heating element device; and
an object to be heated which has been fixed onto said heat-conductive substrate.
- a board;
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33. A module comprising a heating element mounted structure,
said heating element mounted structure comprising: - a board;
a heat-conductive substrate fixed onto said board through a support;
a heating element device capable of generating heat upon being energized, said heating element device having been fixed onto the surface of said heat-conductive substrate in its board side; and
an object to be heated which has been fixed onto the surface of said heat-conductive substrate remote from the heating element device.
- a board;
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34. A module comprising:
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an object to be heated;
a plurality of heating elements for supplying thermal energy to said object to be heated;
a plurality of switching circuits which arc provided in a one-to-one relationship with said plurality of heating elements and have respective intrinsic internal resistances;
temperature detection means for detecting the temperature of the object to be heated;
switching circuit driving form determination means for determining the on/off state of each switching circuit based on the relationship between the total thermal energy supplied to the object to be heated from all of said plurality of heating elements and energy loss derived from internal resistance of the switching circuit to be energized so that the proportion of the total thermal energy loss of all of the switching circuits relative to each temperature detected by said temperature detection means is minimized; and
switching circuit driving control means for controlling the on/off state of said plurality of switching circuits according to the temperature detected by said temperature detection means based on the result of determination in said switching circuit driving form determination means. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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35. A module comprising:
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an object to be heated;
a plurality of healing elements for supplying thermal energy to said object to be heated, said plurality of heating elements having been divided into a plurality of heating element groups;
a plurality of switching circuits which are provided in a one-to-one relationship with said plurality of heating element groups and have respective intrinsic internal resistances;
temperature detection means for detecting the temperature of the object to be heated;
switching circuit driving form determination means for determining the on/off state of each switching circuit based on the relationship between the total thermal energy supplied to the object to be heated from all of said plurality of heating elements and energy loss derived from internal resistance of the switching circuit to be energized so that the proportion of the total thermal energy loss of all of the switching circuits relative to each temperature detected by said temperature detection means is minimized; and
switching circuit driving control means for controlling the on/on state of said plurality of switching circuits according to the temperature detected by said temperature detection means based on the result of determination in said switching circuit driving form determination means.
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Specification