POWER DETERIORATION DETECTION DEVICE, OPERATION CONTROL DEVICE, AND AIR CONDITIONER

Title:

POWER DETERIORATION DETECTION DEVICE, OPERATION CONTROL DEVICE, AND AIR CONDITIONER

Document Type and Number:

WIPO Patent Application WO/2018/225220

Kind Code:

A1

Abstract:

This power deterioration detection device is mounted on an air conditioner that is supplied with power from a direct current power supply. The power deterioration detection device is provided with: a voltage divider, which is connected to the direct current power supply, and which divides a voltage outputted from the direct current power supply; a first comparator, which is connected to the voltage divider, and which compares an output voltage with a predetermined first reference voltage, said output voltage having been outputted from the voltage divider, and outputs a first electric signal in the cases where the value of the output voltage is equal to the value of the first reference voltage or lower; and a first optical detector that has a first light emitter, which is connected to the first comparator, and which receives the first electric signal outputted from the first comparator, and transmits a first optical signal, and a first light receiver that receives the first optical signal. The first light receiver is electrically insulated from the first light emitter. Furthermore, the air conditioner and the operation control device according to the present invention are provided with at least the configuration of the above-mentioned power deterioration detection device.

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Inventors:

MATSUOKA NAOKI (JP)
MAEKITA AKIHISA (JP)
OKA MASAFUMI (JP)

Application Number:

PCT/JP2017/021333

Publication Date:

December 13, 2018

Filing Date:

June 08, 2017

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

G05F1/56; H02M3/28

Domestic Patent References:

WO2004054080A1

2004-06-24

Foreign References:

JPH10225116A	1998-08-21
JPS63107431A	1988-05-12
JP2013090524A	2013-05-13
JP2016125799A	2016-07-11
JP2012108350A	2012-06-07
JP2016046959A	2016-04-04

Attorney, Agent or Firm:

KISA PATENT & TRADEMARK FIRM (JP)

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