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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11856663 B1

PDFFull Text
Date of Patent:
Dec. 26, 2023

Filed:

Mar. 24, 2020

Ptc liquid heating device

Applicant:

Bestway Inflatables & Material Corp., Shanghai, CN;

Inventors:

Shuiyong Huang, Shanghai, CN;

Jiang Xu, Shanghai, CN;

Guoping Li, Shanghai, CN;

Assignee:

BESTWAY INFLATABLES & MATERIAL CORP., Shanghai, CN;

Attorney:

DICKINSON WRIGHT PLLC

Primary Examiner:

Joseph M Pelham

Int. Cl.
CPC ...
H05B 3/03 (2006.01); H05B 3/06 (2006.01); H05B 3/14 (2006.01); H05B 3/28 (2006.01); F24H 9/00 (2022.01); F24H 9/18 (2022.01); F24H 9/1818 (2022.01); F24H 1/12 (2022.01); H05B 3/82 (2006.01);
U.S. Cl.
CPC ...
H05B 3/82 (2013.01); F24H 9/0015 (2013.01); F24H 9/0021 (2013.01); F24H 9/1818 (2013.01); F24H 9/1827 (2013.01); H05B 3/03 (2013.01); H05B 3/141 (2013.01); H05B 3/28 (2013.01); F24H 1/12 (2013.01); F24H 1/121 (2013.01); H05B 2203/017 (2013.01); H05B 2203/02 (2013.01); H05B 2203/021 (2013.01);
Abstract

A PTC liquid heating device comprises a housing extending along a longitudinal axis and defining a liquid inlet and a liquid outlet. A PTC heating unit is inserted into the housing and extends along the longitudinal axis. The PTC heating unit includes a sleeve, a heat conductor and at least one PTC heating core. The heat conductor has a pair of metal profiles defining at least one chamber, the at least one chamber extending along the longitudinal axis to receive the at least one PTC heating core. The heat conductor is located in the sleeve and has a shape matching the sleeve. The PTC liquid heating device provides uniform and efficient heat transfer. In addition, the PTC liquid heating device has improved corrosion resistance and insulation properties, thereby prolonging the service life of the PTC liquid heating device.

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