Compressor operation control device and air conditioner using the same

An operation control and air-conditioning technology, which is applied to heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve the problems of energy saving and poor comfort, difficulty in costing remote controllers and air-conditioning devices, and inability to perform inverter control of compressors. , to achieve the effect of rapid adjustment, high comfort and energy saving

Inactive Publication Date: 2010-08-18
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, as described above, in North American air conditioners including a thermostat with a controller function in the remote controller, the compression cannot be performed because the signal output from the thermostat is a signal for instructing the on / off of the compressor. Frequency conversion control of the machine
For this reason, the indoor temperature cannot be brought close to the set temperature with high precision, and it is inferior to Japanese air conditioners in terms of energy saving and comfort.
[0007] In this regard, it is considered to replace the above-mentioned automatic temperature regulator with a remote controller that is widely used in Japan, etc., and to install a controller that can perform frequency conversion control. However, it is necessary to develop a corresponding Remote control and air conditioner are difficult in terms of cost input

Method used

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  • Compressor operation control device and air conditioner using the same
  • Compressor operation control device and air conditioner using the same
  • Compressor operation control device and air conditioner using the same

Examples

Experimental program
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Effect test

no. 1 approach

[0077] This embodiment relates to an air conditioner 1 including an operation control device 3 for a compressor 11 according to the present invention. In this air conditioner 1, the outdoor air taken in from outside is air-conditioned and then sent indoors.

[0078]

[0079] Such as figure 1 As shown, the air conditioner 1 includes an outdoor unit 10 and an indoor unit 20 . The outdoor unit 10 is provided with a compressor 11 , an outdoor heat exchanger 12 , an outdoor expansion valve 13 , a four-way reversing valve 14 and an outdoor fan 15 . The indoor unit 20 is provided with an indoor heat exchanger 21 , an indoor expansion valve 22 and an indoor fan 23 .

[0080] In the outdoor unit 10 , the discharge side of the compressor 11 is connected to the first valve port P1 of the four-way reversing valve 14 . The suction side of the compressor 11 is connected to the third port P3 of the four-way selector valve 14 .

[0081] The outdoor heat exchanger 12 is composed of a cro...

no. 2 approach

[0130] Figure 5 and Figure 6 3 shows a time chart related to the target value correction control of the compressor 11 of the air conditioner 1 according to the second embodiment of the present invention. In addition, the configurations of the controllers 30, 40, the control interface 50, and the main controller 60 of the outdoor unit 10 and the indoor unit 20 are the same as those of the first embodiment, except for a part of the correction control of the target value, as follows. Describe the different parts.

[0131] -Cooling operation-

[0132] The following is based on Figure 5 The target value correction control performed by the main controller 60 during the cooling operation of the air conditioner 1 will be described.

[0133] First, when a first-stage or second-stage ON signal is output from the control interface 50, the compressor 11 is driven (turned into an ON state). At this time, when the open signal of the first stage is output, the target value of the eva...

no. 3 approach

[0159] Figure 7 and Figure 8 In FIG. 3 , a time chart of the target value correction control of the compressor 11 of the air conditioner 1 according to the third embodiment of the present invention is shown. In addition, the configurations of the controllers 30, 40 of the outdoor unit 10 and the indoor unit 20, the control interface 50, the main controller 60, etc. are the same as those of the first one, except that the ON signal output from the control interface 50 is one type. The embodiments are basically the same, except that the correction control of the target value is partly different, and the different parts will be described below.

[0160] -Cooling operation-

[0161] Below, based on Figure 7 The target value correction control performed by the main controller 60 during the cooling operation of the air conditioner 1 will be described.

[0162] First, when an ON signal is output from the control interface 50, the compressor 11 is driven (turned ON). At this ti...

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Abstract

An air conditioner is so configured that only a signal associated with the ON/OFF state of a compressor is outputted from a control terminal. It is possible to perform inverter control of the compressor. An operation control device (3) of the compressor (11) is configured so as to inverter-control the compressor according to the ON signal outputted from a control interface (50) of the air conditioner (1). More specifically, the compressor (11) has a frequency controlled by correcting a target value of at least of one of the following: the blow-out temperature, the evaporation temperature, the condensation temperature, the intake pressure, and the discharge pressure of the compressor (11) according to the continuation time of the ON signal or the continuation time of the OFF state.

Description

technical field [0001] The invention relates to an air conditioner for frequency conversion control of a compressor. Background technique [0002] Hitherto, in order to bring the indoor temperature closer to the optimum temperature, air conditioners configured to perform inverter control of the compressor are known. In such an air conditioner, as disclosed in Patent Document 1, for example, the operation control of the compressor is performed based on a set temperature, room temperature, blowing temperature, suction pressure and discharge pressure of the compressor, and the like. That is, a general air conditioner is configured to detect at least one of the blowing temperature, the suction pressure of the compressor, and the discharge pressure in addition to the indoor temperature, and to control the operation of the compressor so that these detected values ​​are close to preset target value. In addition, generally speaking, the setting of the set temperature is performed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02
CPCF25B49/025Y02B30/741F25B2700/21173F25B2700/2117F25B2700/1933F25B2700/2116F25B2600/0251F25B2600/021F25B2700/1931F24F11/008F24F11/83Y02B30/70F24F11/84F24F11/86
Inventor 北岸正光武智亮太井形诚男
Owner DAIKIN IND LTD
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