Heating rod, heating module including same, and heating device including same
AssigneeLG Innotek Co., Ltd.
InventorsWon Jin Kim, Dong Hwa Lee, In Jae Lee
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Abstract
According to one embodiment of the present invention, a heating rod comprises: a first thermal diffusion plate; a ceramic substrate arranged on the first thermal diffusion plate and having a heating element arranged therein; and a second thermal diffusion plate arranged on the ceramic substrate, wherein the first thermal diffusion plate and the second thermal diffusion plate are respectively stacked in a plurality of layers. Since the first thermal diffusion plate and the second thermal diffusion plate are stacked in the plurality of layers, a heating rod having a high thermal efficiency and being capable of fast heating and a vehicular heating device including the same can be obtained.
Claims20
A heating rod comprising:
- a first thermal diffusion plate;
- a ceramic substrate disposed on the first thermal diffusion plate and having a heating element arranged therein;
- and
- a second thermal diffusion plate arranged on the ceramic substrate,
- wherein the first thermal diffusion plate and the second thermal diffusion plate are stacked in a plurality of layers respectively,
- wherein the plurality of layers include a first layer and a second layer disposed on the first layer,
- wherein an interface is provided between the first layer and the second layer, and
- wherein the first layer has an inner porosity greater than a porosity of the interface between the first layer and the second layer.
A heating module comprising:
- a plurality of heating rods;
- and
- a plurality of radiation fins arranged between two adjacent heating rods,
- wherein each of the plurality of heating rods comprises:
- a first thermal diffusion plate;
- a ceramic substrate disposed on the first thermal diffusion plate and having a heating element arranged therein;
- and
- a second thermal diffusion plate arranged on the ceramic substrate,
- wherein the first thermal diffusion plate and the second thermal diffusion plate are stacked in a plurality of layers respectively,
- wherein the plurality of layers include a first layer and a second layer disposed on the first layer,
- wherein an interface is provided between the first layer and the second layer, and
- wherein the first layer has an inner porosity greater than a porosity of the interface between the first layer and the second layer.
A heater comprising:
- a case;
- a heating module arranged in the case;
- and
- a power module electrically connected to the heating module,
- wherein the heating module comprises:
- a plurality of heating rods;
- and
- a plurality of radiation fins arranged between two adjacent heating rods,
- wherein the heating module further comprises a support portion between the plurality of radiation fins,
- wherein one or more support portions identical to the support portion are arranged between the adjacent heating rods,
- wherein each of the plurality of heating rods comprises:
- a first thermal diffusion plate;
- a ceramic substrate disposed on the first thermal diffusion plate and having a heating element arranged therein;
- and
- a second thermal diffusion plate arranged on the ceramic substrate,
- wherein the first thermal diffusion plate and the second thermal diffusion plate are stacked in a plurality of layers respectively,
- wherein the plurality of layers include a first layer and a second layer disposed on the first layer,
- wherein an interface is provided between the first layer and the second layer, and
- wherein the first layer has an inner porosity greater than a porosity of the interface between the first layer and the second layer.
Dependencies are inferred from the claim text.