Title:
ELECTRIC VALVE AND THERMAL MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/180191
Kind Code:
A1
Abstract:
An electric valve (30) and a thermal management system. The electric valve (30) comprises a pressure sensing unit (5). The pressure sensing unit is connected to a valve seat (2), and the pressure sensing unit can sense the pressure characteristics of a working medium in a detection flow channel (23) and form a piezoelectric signal. An electric control portion (3) comprises an electric control board (31). The piezoelectric signal forms, by means of a conditioning circuit, an electrical signal corresponding to a pressure. The electrical signal is used as a part for generating a signal for controlling a driving portion (4). The reduction of the costs of the electric valve is facilitated.
Inventors:
ZHANG RONGRONG (CN)
PAN YIYUAN (CN)
YUAN KE (CN)
CHEN TUPING (CN)
PAN YIYUAN (CN)
YUAN KE (CN)
CHEN TUPING (CN)
Application Number:
PCT/CN2021/080344
Publication Date:
September 16, 2021
Filing Date:
March 12, 2021
Export Citation:
Assignee:
HANGZHOU SANHUA RES INST CO LTD (CN)
International Classes:
F16K31/04
Foreign References:
| CN108869830A | 2018-11-23 | |||
| CN209909196U | 2020-01-07 | |||
| CN209495003U | 2019-10-15 | |||
| CN207049366U | 2018-02-27 | |||
| JP2019211180A | 2019-12-12 | |||
| US20110005250A1 | 2011-01-13 | |||
| CN202010175679A | 2020-03-13 |
Other References:
See also references of EP 4119824A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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