Air conditioner

Patent metadata

Field	Value
Publication number	US-9909776-B2
Application number	US-201514700318-A
Country	US
Kind code	B2
Filing date	Apr 30, 2015
Priority date	May 27, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

An air conditioner includes an indoor device that is controlled by a remote controller and an outdoor device that is connected to the indoor device. The outdoor device is configured to include an outdoor-device state-quantity acquisition unit (a compressor-data acquisition unit and a heat-exchanger-data acquisition unit) that acquires an outdoor-device state quantity indicating a state quantity, acquired during maintenance and during a test run, of a component included in the outdoor device. The indoor device is configured to include an indoor-device state-quantity acquisition unit (a heat-exchanger-data acquisition unit) that acquires an indoor-device state quantity indicating a state quantity, acquired during maintenance and during a test run, of a component included in the indoor device, and a storage unit that stores therein the outdoor-device state quantity and the indoor-device state quantity.

First claim

What is claimed is:

1. An air conditioner comprising:
an indoor device that is controlled by a remote controller; and
an outdoor device that is connected to the indoor device, wherein
the outdoor device includes
an outdoor-device component state-quantity acquisition unit that acquires an outdoor-device component state quantity indicating a state quantity of a component included in the outdoor device, the outdoor-device component state quantity being acquired during maintenance and during a test run, and

the indoor device includes
an indoor-device component state-quantity acquisition unit that acquires an indoor-device component state quantity indicating a state quantity of a component included in the indoor device, the indoor-device component state quantity being acquired during the maintenance and during the test run, and
a storage unit that stores therein the outdoor-device state quantity and the indoor-device state quantity.

2. The air conditioner according to claim 1 , wherein
the outdoor-device component state quantity includes a temperature of a heat exchanger in the outdoor device.

3. The air conditioner according to claim 1 , wherein
the outdoor-device component state quantity includes information on a compressor in the outdoor device.

4. The air conditioner according to claim 1 , wherein
the indoor-device component state quantity includes information on a heat exchanger in the indoor device.

5. The air conditioner according to claim 1 , wherein
the storage unit includes a correction unit,
when a free space in the storage unit is less than or equal to a preset threshold during storage of new storage-target data in the storage unit, the correction unit deletes, from data stored in the storage unit, data having a value less than or equal to a reference data value to create a free area in the storage unit and stores the new storage-target data in the created area, where the reference data value is a value of initial data among the data stored in the storage unit, and
when another new storage-target data is generated, the correction unit performs processing to cause only data having a value greater than the reference data value to be stored in the storage unit.

6. The air conditioner according to claim 1 , wherein
the remote controller includes a remote-controller storage unit, and
the remote-controller storage unit stores therein the outdoor-device state quantity and the indoor-device state quantity.

Assignees

• Mitsubishi Electric Corp

Inventors

• Okamoto Akira

Classifications

• F24F2140/20

  Heat-exchange fluid temperature · CPC title

• F24F11/32

  Responding to malfunctions or emergencies · CPC title

• F24F11/56

  Remote control · CPC title

• F24F11/30 Primary

  for purposes related to the operation of the system, e.g. for safety or monitoring · CPC title

• F24F2011/0052

  Mechanical Engineering · mapped topic