US 12,460,838 B2
PTC heater
Jong Su Kim, Daejeon (KR); and Dong Won Lee, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 17/420,226
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Jan. 16, 2020, PCT No. PCT/KR2020/000769
§ 371(c)(1), (2) Date Jul. 1, 2021,
PCT Pub. No. WO2020/159122, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 10-2019-0013603 (KR), filed on Feb. 1, 2019.
Prior Publication US 2022/0146148 A1, May 12, 2022
Int. Cl. F24H 9/1863 (2022.01); F24H 3/04 (2022.01); H05B 3/32 (2006.01)
CPC F24H 9/1872 (2013.01) [F24H 3/0435 (2013.01); F24H 3/0464 (2013.01); H05B 3/32 (2013.01); H05B 2203/02 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A positive temperature coefficient (PTC) heater comprising:
a PTC element heating part configured to generate heat; and
a pair of heat dissipating plates disposed at two opposite sides of the PTC element heating part, respectively, so as to be in contact with the PTC element heating part and having a plurality of flow holes,
wherein the heat dissipating plates have heat dissipating fins each connected to one side of each of the flow holes and bent to a space between the heat dissipating plates and the heat dissipating plates comprise a first heat dissipating plate and a second heat dissipating plate disposed to face each other, and a first flow hole formed in the first heat dissipating plate and a second flow hole formed in the second heat dissipating plate are disposed to face each other and the heat dissipating fins are angled to intersect with a direction from the first heat dissipating plate to the second heat dissipating plate or a direction from the second flow hole to the first flow hole, wherein the heat dissipating fins are formed only in one of the first and second flow holes and the other flow hole is not formed with the heat dissipating fin.