Title:
COMPRESSOR PROTECTING CIRCUIT AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2018/149031
Kind Code:
A1
Abstract:
A compressor protecting circuit and an air conditioner. The compressor protecting circuit is provided with a current sampling module (10), a reference voltage module (30), a voltage comparing module (20), a shaping module (80), an MCU (50), an intelligent power module (60), and additionally, a feedback module (40). Since the feedback module (40) is connected to reference voltage input end and output end of the voltage comparing module (20), the protecting and recovering reference voltage values of the voltage comparing module (20) are different. The present invention solves the problem of intelligent power module (60) damage being caused by uncontrollable diving of a compressor by the intelligent power module (60) due to an unstable protection state of the intelligent power module (60) because the output state of the voltage comparing module (20) is unstable caused by a fluctuation close to a reference voltage value at the input end of the voltage comparing module (20).
Inventors:
BAO DIANSHENG (CN)
Application Number:
PCT/CN2017/082510
Publication Date:
August 23, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
GUANGDONG MIDEA REFRIGERATION APPLIANCES CO LTD (CN)
International Classes:
H02H7/09
Foreign References:
| CN206506283U | 2017-09-19 | |||
| CN104617544A | 2015-05-13 | |||
| CN105932636A | 2016-09-07 | |||
| CN204965104U | 2016-01-13 | |||
| CN103944143A | 2014-07-23 | |||
| CN203596772U | 2014-05-14 | |||
| US4709292A | 1987-11-24 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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