Title:
NOISE FILTER, AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/029413
Kind Code:
A1
Abstract:
According to the present invention, a worsening of electromagnetic interference due to a grounded capacitor in a π-type noise filter that employs a common mode choke coil is suppressed using a simple configuration. A resistor (54) of a noise filter (50) is disposed between a first input terminal (51a) of a common mode choke coil (51) and a grounding wire (EC), and between a second input terminal (51b) and the grounding wire (EC). The resistor (54) is provided such that currents that flow between the first input terminal (51a) and the second input terminal (51b) of the common mode choke coil (51) and a first output terminal (51x) and a second output terminal (51y) thereof, through a first pre-stage capacitor (52) or a second pre-stage capacitor (53), flow via the resistor (54).
Inventors:
UEDA NARUSHIGE
FUKUSHIMA TERUHISA
NAKATANI KAZUHIRO
FUKUSHIMA TERUHISA
NAKATANI KAZUHIRO
Application Number:
PCT/JP2023/027305
Publication Date:
February 08, 2024
Filing Date:
July 26, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
H03H7/06; F25B49/02; H03H7/09
Domestic Patent References:
| WO2020208825A1 | 2020-10-15 |
Foreign References:
| JP2000244271A | 2000-09-08 | |||
| JP2010028695A | 2010-02-04 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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