Provided is a heating device which makes it possible to effectively perform heat exchange between a heating element and a heat medium without increasing the number of components, and further to eliminate air retention and increase of a pressure loss. A heating device 1 is constituted of a case 2 inc
Provided is a heating device which makes it possible to effectively perform heat exchange between a heating element and a heat medium without increasing the number of components, and further to eliminate air retention and increase of a pressure loss. A heating device 1 is constituted of a case 2 including therein a flow path 3 through which a heat medium flows, and an electric heating wire heater 4 disposed in the flow path of the case to heat the heat medium. The case comprises a first case section 6 and a second case section 7 each of which has at least one opened surface and which are connected to each other in a state where respective openings are made to abut on each other, and a plate-like gasket 8 which is interposed between abutment portions of the first case section and the second case section, and seals a space between both the case sections, and the gasket controls the flow of the heat medium in the flow path.
대표청구항▼
1. A heating device, wherein the heating device is constituted of a case including therein a flow path through which a heat medium flows, and a heating element disposed in the flow path of the case to heat the heat medium,wherein the case comprises a first case section and a second case section each
1. A heating device, wherein the heating device is constituted of a case including therein a flow path through which a heat medium flows, and a heating element disposed in the flow path of the case to heat the heat medium,wherein the case comprises a first case section and a second case section each of which has at least one opened surface and which are connected to each other in a state where respective openings are made to abut on each other, and a plate-like gasket which is interposed between abutment portions of the first case section and the second case section, and seals a space between both the case sections,wherein at least a part of the gasket is positioned in the flow path, to control the flow of the heat medium in the flow path,wherein the gasket has a wall section positioned in the flow path, and a passage portion opened in the wall section, andwherein in the gasket, the flow path of a portion where air is easily retained in the case is narrowed by an opening dimension and/or a shape of the passage portion formed in the wall section. 2. The heating device according to claim 1, wherein the gasket has cutout portions projected and formed in an upper portion of the passage portion positioned in an upper portion of the flow path. 3. The heating device according to claim 1, wherein in the gasket, the flow path of a portion where the heat medium does not easily flow in the case is enlarged by an opening dimension and/or a shape of the passage portion formed in the wall section. 4. The heating device according to claim 1, wherein the opening dimension and/or the shape of the passage portion formed in the wall section of the gasket is set so that a pressure loss of the heat medium in the flow path falls within an allowable range. 5. The heating device according to claim 1, wherein the heating element is disposed along the space between both the case sections, and the heating element passes through a passage portion formed in the wall section of the gasket. 6. The heating device according to claim 1, wherein the heating elements are arranged in the case sections, respectively, and the gasket is positioned between the respective heating elements. 7. The heating device according to claim 1, wherein the heat medium is an antifreezing solution which flows through a vehicle heating water circuit. 8. The heating device according to claim 2, wherein in the gasket, the flow path of a portion where the heat medium does not easily flow in the case is enlarged by an opening dimension and/or a shape of the passage portion formed in the wall section. 9. The heating device according to claim 8, wherein the opening dimension and/or the shape of the passage portion formed in the wall section of the gasket is set so that a pressure loss of the heat medium in the flow path falls within an allowable range. 10. The heating device according to claim 9, wherein the heating element is disposed along the space between both the case sections, and the heating element passes through the passage portion formed in the wall section of the gasket. 11. The heating device according to claim 9, wherein the heating elements are arranged in the case sections, respectively, and the gasket is positioned between the respective heating elements. 12. The heating device according to claim 6, wherein the heat medium is an antifreezing solution which flows through a vehicle heating water circuit. 13. The heating device according to claim 1, wherein in the gasket, the flow path of a portion where the heat medium does not easily flow in the case is enlarged by an opening dimension and/or a shape of the passage portion formed in the wall section. 14. The heating device according to claim 1, wherein the opening dimension and/or the shape of the passage portion formed in the wall section of the gasket is set so that a pressure loss of the heat medium in the flow path falls within an allowable range. 15. The heating device according to claim 1, wherein the heating element is disposed along the space between both the case sections, and the heating element passes through the passage portion formed in the wall section of the gasket. 16. The heating device according to claim 1, wherein the heating elements are arranged in the case sections, respectively, and the gasket is positioned between the respective heating elements. 17. The heating device according to claim 1, wherein the heat medium is an antifreezing solution which flows through a vehicle heating water circuit. 18. The heating device according to claim 2, wherein the opening dimension and/or the shape of the passage portion formed in the wall section of the gasket is set so that a pressure loss of the heat medium in the flow path falls within an allowable range.
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