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Method and device used for controlling air conditioner and air conditioner

An air conditioner and control mode technology, applied in space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve problems such as poor experience, lack of protection, and large rate of change in indoor temperature difference.

Inactive Publication Date: 2015-11-25
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the current of the whole machine is any value in the interval [5.5A, 8A), the operating frequency of the compressor is any value in the interval [f-Δf, f), where Δf>0; The higher the frequency, the greater the amount of heat or cooling that the air conditioner can provide to the user per unit time, so that the rate of change of the indoor temperature difference is greater, that is, the indoor temperature can be adjusted to the target temperature indicated by the user faster. In this way, The better the user's experience is, therefore, compared with the case where the compressor operates at the operating frequency f, the protection control process causes the user's experience to be worse
If the current of the whole machine is any value in (8A, 8.5A], it will cause no protection effect

Method used

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  • Method and device used for controlling air conditioner and air conditioner
  • Method and device used for controlling air conditioner and air conditioner
  • Method and device used for controlling air conditioner and air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a method for controlling an air conditioner provided in an embodiment of the present invention, the air conditioner includes a compressor, and the operating frequency of the compressor is f, the method includes:

[0050] 101: When the air conditioner is in an overload condition, acquire a first value of a preset index parameter of the air conditioner; the preset index parameter includes a complete machine current and / or a change rate of a complete machine current.

[0051] Wherein, the execution subject of this embodiment may be the air conditioner itself, or may be an entity device independent of the air conditioner. The "air conditioner" may be an inverter air conditioner.

[0052] The "first value of the preset index parameter" refers to the current value of the preset index parameter when the "obtain" action in step 101 is performed. The preset index parameters may include the following three conditions: 1) the overall machine current; 2...

Embodiment 1

[0071] In this embodiment, the control mode of the air conditioner is cooling mode.

[0072] Such as figure 2 As shown, the method includes:

[0073] 201: Determine that the control mode of the air conditioner is the cooling mode.

[0074] 202: Determine whether the ambient temperature of the air conditioner is greater than or equal to a first temperature threshold.

[0075] If yes, it means that the air conditioner is in an overload condition, then execute step 203; if not, it means that the air conditioner is not in an overload condition, and then end.

[0076] It should be noted that this embodiment does not limit the specific value of the "first temperature threshold", which may be determined according to factors such as the ventilation effect of the environment where the air conditioner is located. Optionally, the first temperature threshold may be 45°C.

[0077] 203: Judging whether the running state of the air conditioner is low wind running.

[0078] If not, exec...

Embodiment 2

[0104] In this embodiment, the control mode of the air conditioner is the heating mode. Such as image 3 As shown, the method includes:

[0105] 301: Determine that the control mode of the air conditioner is the heating mode.

[0106] 302: Determine whether the ambient temperature of the air conditioner is greater than or equal to a second temperature threshold.

[0107] If yes, it means that the air conditioner is in an overload condition, then execute step 303; if not, it means that the air conditioner is not in an overload condition, and then end.

[0108] It should be noted that this embodiment does not limit the specific value of the "second temperature threshold", which may be determined according to factors such as the ventilation effect of the environment where the air conditioner is located. Optionally, the first temperature threshold may be 24°C.

[0109] 303: Obtain the first value of the overall current of the air conditioner and the current rotational speed of...

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Abstract

The embodiment of the invention discloses a method and a device used for controlling an air conditioner and the air conditioner, pertaining to the technical field of control technology for air conditioners. Therefore, service lifetime of the air conditioner is increased while the experience effect of a user is improved. The air conditioner comprises a compressor having working frequency of f and an inner fan. The method for controlling the air conditioner provided by the embodiment comprises following steps: acquiring first value of a pre-set index parameter, comprising machine current and / or rate of change for machine current, of the air conditioner when the air conditioner is in the working condition of excess load; unloading loads of the air conditioner if the first value is greater than the pre-set threshold value; acquiring second value for the index parameter after unloading loads of the air conditioner; and controlling the air conditioner to stably operate according to second value and f when the second value is smaller than or equal to the pre-set threshold value. When the loads of the air conditioner are unloaded, working frequency of the compressor is f.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to a method and device for controlling an air conditioner and the air conditioner. Background technique [0002] In order to prolong the service life of the inverter air conditioner, when the air conditioner is in an overload condition, it is generally necessary to protect the air conditioner from over-current protection, over-temperature protection of the inner and outer coils, and over-temperature protection of the exhaust gas. Specifically, set corresponding protection limits in the control program. When it is detected that a certain protection parameter (such as complete machine current, internal and external coil temperature, exhaust temperature, etc.) exceeds the corresponding protection limit (such as current limit, internal and external coil temperature limit, exhaust temperature limit, etc.), by adjusting the operating frequency of the compressor, the protec...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/65F24F11/77Y02B30/70
Inventor 陈胜华
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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