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air conditioner

A blending and air technology, applied in the field of air conditioners, can solve the problems of poor user convenience

Active Publication Date: 2020-08-07
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the battery is depleted and the air-conditioning control operation cannot be performed, the user may mistakenly think that it is a malfunction, and there is a problem that the convenience for the user is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] figure 1 It is a figure which shows the structural example of the air conditioner 4 which concerns on Embodiment 1 of this invention. Air conditioner 4 equipped figure 1 Indoor unit 1, outdoor unit 2 and figure 1 A remote controller (hereinafter referred to as "remote controller") which is not shown in the figure and commands the air-conditioning control to the indoor unit 1 . The indoor unit 1 is, for example, a vertical type indoor unit installed on the floor of a room. Here, the outdoor unit 2 is connected to one indoor unit 1 , but may be connected to a plurality of indoor units 1 . Assume that the air conditioner 4 uses a flammable refrigerant such as R32.

[0025] figure 2 It is a block diagram showing a configuration example of the indoor unit 1, the outdoor unit 2, and the remote controller 3 constituting the air conditioner 4 according to the first embodiment.

[0026] The indoor unit 1 includes: a communication unit 11 for communicating with the outdoor...

Embodiment approach 2

[0052] In Embodiment 2, when the air conditioner 4 is not in operation for air-conditioning control, that is, it is stopped, the control unit 12 operates the leak sensor 13 continuously or intermittently. Portions different from Embodiment 1 will be described.

[0053] The structures of the indoor unit 1, the outdoor unit 2, and the remote controller 3 are the same as those of the first embodiment. Image 6 It is a graph showing the transition of the failure rate of general electrical products and the like. Electrical products, etc. are generally due to factors such as manufacturing factors caused by operations at the time of assembly, component factors caused by parts used, and installation factors caused by installation work in the case of components installed in buildings such as the air conditioner 4, etc. During the initial bad period, the failure rate tends to be high. In addition, electric products and the like deteriorate due to continuous use, and therefore tend to ...

Embodiment approach 3

[0063] In Embodiment 3, when the air conditioner 4 is not in operation for air-conditioning control, that is, it is stopped, the control unit 12 operates the leak sensor 13 continuously or intermittently by a control different from that of the Embodiment 2. Differences from Embodiments 1 and 2 will be described.

[0064] The configurations of the indoor unit 1, the outdoor unit 2, and the remote controller 3 are the same as those in the first embodiment. Figure 9 It is a diagram showing the transition of the measurement result obtained by the leakage sensor 13 of the indoor unit 1 measuring the refrigerant leakage amount in the third embodiment. The leak sensor 13 measures the refrigerant leakage amount at the timing of detecting the refrigerant leakage.

[0065] exist Figure 9 Here, the second threshold value is a threshold value for determining that the refrigerant leaks in the control unit 12 when the leakage amount of the refrigerant measured by the leak sensor 13 exce...

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PUM

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Abstract

An air conditioner (4), comprising an indoor unit (1), an outdoor unit (2), and a remote controller (3) for issuing air-conditioning control instructions to the indoor unit (1), equipped with: a leakage sensor (13), The indoor unit (1) detects a first abnormality which is an abnormality of refrigerant leakage; the sensors (14, 23) detect a second abnormality which is an abnormality other than the first abnormality; and controls The part (12) activates the leak sensor (13) and the sensors (14, 23) when the air conditioner (4) is in operation for air conditioning control, and when the air conditioner (4) is not in operation for air conditioning control, Activate the leak sensor (13).

Description

technical field [0001] The present invention relates to an air conditioner that detects leakage of refrigerant. Background technique [0002] In order to cope with the environmental problem of depletion of the ozone layer, the refrigerant used in air conditioners has been switched from Freon to R32, etc. Unlike Freon, R32 is a flammable refrigerant. When R32 leaks from the air conditioner, a problem different from that of Freon leaks may occur. Patent Document 1 discloses a technique in which an air conditioner is equipped with a refrigerant leakage detection device and warns a user when refrigerant leakage is detected. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 7.159010 Contents of the invention [0006] However, the air conditioner described in Patent Document 1 can also detect refrigerant leakage by operating the refrigerant leakage detection device with the storage battery during tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/89F24F11/32F24F11/36F24F11/74F25B49/02
CPCF24F11/89F24F1/0003F24F11/77F24F11/36F24F11/38Y02B30/70F24F11/74
Inventor 铃木洋平
Owner MITSUBISHI ELECTRIC CORP