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US 2017/0370614 A1Published application
Ptc heater
AssigneeBestway Inflatables & Materials Corp.
InventorFeng LIU
Life of this patent
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Abstract
A heating apparatus is disclosed. The heating apparatus comprises a PTC heating element, a first electrode, a second electrode, a first protection layer, a second protection layer, a first interlayer, and a second interlayer. A hardness of the first protection layer is greater than that of the first interlayer. A hardness of the second protection layer is greater than that of the second interlayer.
Claims31
A heating apparatus, comprising:
- a PTC heating element, the PTC heating element having a first side and a second side;
- a first electrode disposed on the first side of the PTC heating element;
- a second electrode disposed on the second side of the PTC heating element;
- a first protection layer, the first protection layer comprising a first metal sublayer and a first insulating sublayer;
- a second protection layer, the second protection layer comprising a second metal sublayer and a second insulating sublayer;
- a first interlayer located between the first protection layer and the first electrode, the first interlayer being insulating;
- and
- a second interlayer located between the second protection layer and the second electrode, the second interlayer being insulating.
5 more elements
A heating apparatus, comprising:
- a PTC heating element, the PTC heating element having a first side and a second side;
- a first electrode disposed on the first side of the PTC heating element;
- a second electrode disposed on the second side of the PTC heating element;
- a first protection layer;
- a second protection layer;
- a first interlayer located between the first protection layer and the first electrode, the first interlayer being insulating;
- a second interlayer located between the second protection layer and the second electrode, the second interlayer being insulating;
- and
- a heat conductive housing, wherein the PTC heating element, the first electrode, the second electrode, the first protection layer, the second protection layer, the first interlayer, the second interlayer are placed into the heat conductive housing, and a first side wall and a second side wall of the heat conductive housing are inwardly curved.
6 more elements
A method for making a heating apparatus, the method comprising:
- attaching a first electrode and a second electrode onto two sides of a PTC ceramic element respectively through an adhesive material;
- wrapping a first insulating layer around the PTC ceramic element, the first electrode, and the second electrode;
- attaching a first protection layer onto the first electrode with the first insulating layer in between;
- attaching a second protection layer onto the second electrode with the first insulating layer in between;
- wrapping a second insulating layer around the first protection layer and the second protection layer;
- and
- placing the PTC ceramic element, the first electrode, the second electrode, the first insulating layer, the first protection layer, the second protection layer, and the second insulating layer into a heat conductive housing.
4 more elements
A method for making a heating apparatus, the method comprising:
- attaching a first electrode and a second electrode onto two sides of a PTC ceramic element respectively through an adhesive material;
- wrapping a first insulating layer around the PTC ceramic element, the first electrode, and the second electrode;
- placing the PCT ceramic element, the first electrode, the second electrode, and the first insulating layer into a tubular protection layer;
- wrapping a second insulating layer around the tubular protection layer;
- and
- placing the PTC ceramic element, the first electrode, the second electrode, the first insulating layer, the tubular protection layer, and the second insulating layer into a heat conductive housing.
3 more elements
A heating apparatus, comprising:
- a PTC heating element, the PTC heating element having a first side and a second side;
- a first electrode disposed on the first side of the PTC heating element;
- a second electrode disposed on the second side of the PTC heating element;
- a first protection layer;
- a second protection layer;
- a first interlayer located between the first protection layer and the first electrode, the first interlayer being insulating;
- and
- a second interlayer located between the second protection layer and the second electrode, the second interlayer being insulating;
- wherein a hardness of the first protection layer is greater than that of the first interlayer, and a hardness of the second protection layer is greater than that of the second interlayer.
6 more elements
Dependencies are inferred from the claim text.