Title:
液体検知器、圧縮機及び空気調和機
Document Type and Number:
Japanese Patent JP6516442
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a capacitance liquid detector capable of preventing a detection error of liquid level height of a liquid such as lubricant, and detecting capacitance accurately, a compressor having the liquid detector, and an air conditioner having the compressor.SOLUTION: A detection element part 10 of a liquid detection unit 1 is configured so that, a facing gap between a pair of electrode plates 40S, 40mS is set to become wide, and a facing gap between a pair of electrode plates 40mL, 40L is set to become narrow. By a detection signal corresponding to the pair of electrode plates 40S, 40mS having the wide facing gap, presence/absence of a liquid, namely, liquid level height is detected. By a detection signal corresponding to the pair of electrode plates 40mL, 40L having the narrow facing gap, capacitance is detected, for detecting a ratio of impurities contained in the liquid.SELECTED DRAWING: Figure 2
Inventors:
Kazunori Hirai
Tatsuya Tanaka
Daisuke Anai
Tatsuya Tanaka
Daisuke Anai
Application Number:
JP2014222371A
Publication Date:
May 22, 2019
Filing Date:
October 31, 2014
Export Citation:
Assignee:
Saginomiya Co., Ltd.
International Classes:
F04B39/00; G01F23/26; F04B39/02; F04C28/28; F04C29/02
Domestic Patent References:
| JP2014081257A | ||||
| JP9096618A | ||||
| JP50061706A | ||||
| JP2000009673A | ||||
| JP5087428A | ||||
| JP56119474A |
Attorney, Agent or Firm:
Fumio Takino
Toshiaki Tsuda
Toshiaki Tsuda