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Control method and device for preventing high temperature, and air conditioner

An air conditioner and anti-high temperature technology, applied in heating and ventilation control systems, heating methods, lighting and heating equipment, etc., can solve problems such as high exhaust pressure and compressor overload

Active Publication Date: 2015-12-23
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a high temperature prevention control method, device and air conditioner, aiming at solving the problem of the unit in the prior art because the same temperature threshold is used to control the high temperature prevention of the air conditioner in the whole heating process. Problems such as high exhaust pressure and compressor overload are prone to occur during the heating start-up stage

Method used

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  • Control method and device for preventing high temperature, and air conditioner
  • Control method and device for preventing high temperature, and air conditioner
  • Control method and device for preventing high temperature, and air conditioner

Examples

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Embodiment 1

[0056] This embodiment one discloses a high temperature prevention control method, the method is applied to an air conditioner, refer to figure 1 , the method may include the following steps:

[0057] S101: Obtain the real-time detected internal tube temperature of the air conditioner.

[0058] Among them, the real-time internal unit tube temperature data of the air conditioner during the whole heating process can be collected through the temperature sensing package.

[0059] S102: Determine the current target heating stage of the air conditioner.

[0060] Corresponding to the difference between the actual tube temperature of the internal unit and the temperature detected by the temperature sensing package, the whole heating process of the air conditioner includes two stages: the heating start-up stage and the heating stable operation stage.

[0061] In this embodiment, it is determined that the air conditioner is in the heating start-up stage specifically through the follow...

Embodiment 2

[0088] In this example, refer to Figure 4 , the high temperature control method may also include the following steps:

[0089] S105: If the target heating stage is the heating start-up stage, and the air conditioner is currently in the high temperature prevention mode, when the pipe temperature of the indoor unit is not higher than the preset third temperature threshold, control The air conditioner exits the high temperature protection mode;

[0090] S106: If the target heating stage is a heating stable operation stage, and the air conditioner has entered the high temperature prevention mode, when the pipe temperature of the internal unit is not higher than the preset fourth temperature threshold, Controlling the air conditioner to exit the high temperature protection mode.

[0091] For the two stages included in the whole heating process, this embodiment pre-sets the temperature threshold for exiting the high temperature protection mode:

[0092] Set the temperature thres...

Embodiment 3

[0096] Embodiment 3 discloses a high temperature protection control device, which corresponds to the high temperature protection control method disclosed in the above embodiments.

[0097] Corresponding to embodiment one, refer to Figure 5 , the device includes a first acquisition module 100 , a judgment module 200 , a second acquisition module 300 and a first control module 400 .

[0098] The first acquiring module 100 is configured to acquire the real-time detected internal tube temperature of the air conditioner.

[0099] The judging module 200 is configured to judge the current target heating phase of the air conditioner.

[0100] Wherein, the judging module 200 includes a first judging unit and a second judging unit.

[0101] The first judging unit is configured to detect that the air conditioner does not meet the preset heating and starting process end conditions under the premise that the air conditioner meets the preset heating and starting process start conditions in...

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Abstract

The invention discloses a control method and device for preventing high temperature, and air conditioner. The control method comprises the following steps: obtaining the tube temperature of an internal machine of the air conditioner, which is detected in real time, besides, judging the current target heating stage of the air conditioner, and then obtaining a target temperature threshold corresponding to the target heating stage; and then, performing high-temperature prevention control on the air conditioner according to the target temperature threshold. According to the method disclosed by the invention, the situation that the temperature difference between the actual tube temperature of the internal machine is different from the detected temperature of a thermo bulb in different heating stages is considered, high-temperature prevention control is performed on the air conditioner by appropriate temperature thresholds at respective stages during the whole heating process, and the temperature thresholds for preventing high temperature, of the heating stages, are different, so that the method disclosed by the invention solves the problems that because the whole heating process in the prior art adopts the same temperature threshold to prevent high temperature, the phenomena that the exhaust pressure is high, a compressor is overloaded and the like are easy to occur on a machine unit at a heating starting stage.

Description

technical field [0001] The invention belongs to the field of air conditioning control, and in particular relates to a high temperature prevention control method, device and air conditioner. Background technique [0002] Heat pump air conditioners generally have anti-high temperature control function, which is used to prevent the exhaust pressure of the unit from being too high, the exhaust temperature from being too high and the compressor from being overloaded during the whole heating process, so as to ensure the reliable operation of the unit. Specifically, for any stage in the heating start-up stage and heating stable operation stage included in the whole heating process, the high temperature prevention control scheme of the existing unit is: when the temperature sensing package detects When the set value Tx is reached, the unit enters the anti-high temperature mode. At this time, the unit will take certain protective measures, such as stopping the external fan, switching...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 杨亮王云亮朱江程陈博强林国游
Owner GREE ELECTRIC APPLIANCES INC
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