Title:
WATER-LEVEL DETECTION CONTROL CIRCUIT SUITABLE FOR DISCHARGE PUMP, AND OPERATING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/096671
Kind Code:
A1
Abstract:
A water-level detection control circuit suitable for a discharge pump, and an operating method therefor. The water-level detection control circuit comprises a power supply unit, a detection unit (30) and a water pump unit (40), wherein the power supply unit is used for supplying voltages to the detection unit (30) and the water pump unit (40); the detection unit (30) comprises a sensor portion and a comparison portion, wherein the sensor portion is used for conducting periodic detection on a water-level position in the discharge pump, and the comparison portion compares a sensing value corresponding to the water-level position with a preset first threshold value in the detection unit (30), and generates a drive signal according to a comparison result; and the water pump unit (40) is used for receiving the drive signal from the detection unit (30), so that the discharge pump operates for a preset time period. The water-level detection control circuit suitable for a discharge pump can resist the fluctuation of a liquid level, also has the characteristics of simple and easy integration and high reliability, and can be installed in a discharge pump to form an integrated structure with the discharge pump.
Inventors:
YANG JUNLONG (CN)
LI SHANGQING (CN)
HE DENGQING (CN)
LI SHANGQING (CN)
HE DENGQING (CN)
Application Number:
PCT/CN2014/094432
Publication Date:
July 02, 2015
Filing Date:
December 19, 2014
Export Citation:
Assignee:
TAXUN TECHNOLOGY CO LTD (CN)
International Classes:
G05D9/12; F04B49/06
Domestic Patent References:
| WO1986004119A1 | 1986-07-17 |
Foreign References:
| CN201600172U | 2010-10-06 | |||
| US8002245B2 | 2011-08-23 | |||
| CN200985545Y | 2007-12-05 | |||
| CN103676988A | 2014-03-26 |
Attorney, Agent or Firm:
GUANGZHOU SCIHEAD PATENT AGENT CO.. LTD (CN)
广州三环专利代理有限公司 (CN)
广州三环专利代理有限公司 (CN)
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