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US 11,400,793 B2Granted
Electric heater for use in vehicle and vehicle including the same
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsDong Ho Kwon, Gee Young Shin
Life of this patent
Estimating the term…
Abstract
An electric heater for a vehicle includes a heat dissipation fin for heat-exchange with air, a ceramic element to emit heat by receiving a power-supply voltage, and a housing to support the heat dissipation fin and the ceramic element. The ceramic element includes a first positive temperature coefficient (PTC) element, and a second PTC element having a heating power greater than a heating power of the first PTC element.
Claims11
An electric heater for a vehicle, the electric heater comprising:
- a first housing;
- a second housing spaced apart from the first housing by a predetermined distance;
- a heat dissipation fin configured to exchange heat with air, disposed between the first housing and the second housing, and supported by the first and second housings;
- and
- at least one first ceramic element configured to emit heat by receiving a power-supply voltage, disposed between the first housing and the second housing, and supported by the first and second housings,
- wherein the at least one first ceramic element includes:
- a plurality of first positive temperature coefficient (PTC) elements disposed adjacent to side surfaces of the first housing and the second housing, and a second PTC element disposed in a center of the electric heater to increase an amount of heat generated inside the electric heater by the second PTC element,
- wherein the plurality of first PTC elements are standard PTC elements and surround the second PTC element,
- wherein the second PTC element is different from the plurality of first PTC elements,
- wherein the second PTC element has a low resistance value changeable at approximately 25° C. less than a low resistance value of one of the plurality of first PTC elements,
- wherein the second PTC element is configured to emit heat of approximately 175° C. or higher, and
- wherein a heating power of the second PTC element is greater than a heating power of one of the plurality of first PTC elements.
9 more elements
A vehicle comprising:
- a body;
- and
- an electric heater configured to heat air of an indoor space of the body,
- wherein the electric heater includes:
- a first housing;
- a second housing spaced apart from the first housing by a predetermined distance;
- a heat dissipation fin configured to exchange heat with air, disposed between the first housing and the second housing, and supported by the first and second housings;
- and
- at least one first ceramic element configured to emit heat by receiving a power-supply voltage, disposed between the first housing and the second housing, and supported by the first and second housings,
- wherein the at least one first ceramic element includes:
- a plurality of first positive temperature coefficient (PTC) elements disposed adjacent to side surfaces of the first housing and the second housing, and a second PTC element disposed in a center of the electric heater to increase an amount of heat generated inside the electric heater by the second PTC element,
- wherein the plurality of first PTC elements are standard PTC elements and surround the second PTC element,
- wherein the second PTC element is different from the plurality of first PTC elements,
- wherein the second PTC element has a low resistance value changeable at approximately 25° C. less than a low resistance value of one of the plurality of first PTC elements,
- wherein the second PTC element is configured to emit heat of approximately 175° C. or higher, and
- wherein a heating power of the second PTC element is greater than a heating power of one of the plurality of first PTC elements.
13 more elements
Dependencies are inferred from the claim text.