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Compressor frequency control method and device and air conditioner

A compressor frequency and control method technology, applied in the field of equipment and air conditioners, compressor frequency control method, can solve problems such as pipeline breakage

Inactive Publication Date: 2020-07-10
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem solved by the present invention is the problem of easy fracture of the pipeline caused by the inability to determine the high frequency point of the vibration or the high frequency point of the stress

Method used

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  • Compressor frequency control method and device and air conditioner
  • Compressor frequency control method and device and air conditioner
  • Compressor frequency control method and device and air conditioner

Examples

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no. 1 example

[0050] The present invention provides an air conditioner 100, which is used to solve the problem that the pipeline is easy to break due to the inability to determine the high vibration frequency point or the high stress frequency point of the pipeline in the prior art. see figure 1 , is a block diagram of the circuit structure of the air conditioner 100 provided by the present invention. The air conditioner 100 includes a controller 110 , a compressor 120 and a parameter acquisition unit 130 , and the controller 110 is electrically connected to the parameter acquisition unit 130 and the compressor 120 respectively.

[0051] In addition, the air conditioner 100 further includes a refrigerant pipe 140 , and the parameter acquisition unit 130 is disposed outside the refrigerant pipe 140 . The parameter collection unit 130 is used to collect vibration parameters of the refrigerant pipe 140 and transmit the vibration parameters to the controller 110 .

[0052] Wherein, the vibrat...

no. 2 example

[0075] The present invention provides a compressor frequency control method, which is applied to the air conditioner 100 of the first embodiment. see Figure 7 , is a flow chart of the compressor frequency control method provided by the present invention. The compressor frequency control method includes:

[0076] S701. Receive vibration parameters of the refrigerant pipe 140 collected by the parameter collection unit 130 , where the vibration parameters include at least one of a stress value of the refrigerant pipe 140 and an amplitude value of the refrigerant pipe 140 .

[0077] S702, judging whether the vibration parameter satisfies the preset vibration condition, if yes, execute S703; otherwise, execute S701 again.

[0078] Specifically, if the parameter acquisition unit 130 includes an amplitude sensor 132 and the vibration parameter includes an amplitude value, then S702 includes: judging whether the amplitude value is greater than or equal to a preset first threshold. ...

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Abstract

The invention provides a compressor frequency control method and device and an air conditioner, and relates to the field of air conditioners. According to the method, vibration parameters of a refrigerant pipe collected by a parameter acquisition unit are received, and when the vibration parameters meet a preset vibration condition, a compressor is controlled to adjust the operating frequency according to the historical change trend. Due to the fact that the parameter acquisition unit is arranged on the outer side of the refrigerant pipe, the vibration parameters of the refrigerant pipe acquired through the parameter acquisition unit are relatively straightforward and convenient; meanwhile, due to the fact that the vibration parameters of the refrigerant pipe are acquired in real time, thereal-time vibration state of the refrigerant pipe can be more accurately reflected, so that the operating frequency of the compressor is adjusted once the vibration parameters meet the preset vibration condition, so that the pipe breaking problem can be effectively avoided; and meanwhile, when the frequency modulation is carried out, the compressor is controlled to adjust the operating frequencyaccording to the historical change trend and the frequency is not necessarily increased or decreased, so that the pipe breaking problem is avoided, and the compressor can continue to operate accordingto the actual demand of a user.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a compressor frequency control method and device and an air conditioner. Background technique [0002] At present, the large-scale multi-connection market has been widely used, but there are many after-sales problems and the solution process is relatively cumbersome. Among them, the broken refrigerant pipe of the unit is one of the most common after-sales problems. The broken refrigerant pipe of the unit is mainly due to the failure of the internal refrigerant pipe of the unit, which leads to the failure of the unit to operate normally. [0003] The current solution to this kind of broken pipe problem is: obtain the resonance frequency of the pipeline through simulation test in the laboratory in advance, and set the shielding frequency point through the software to prevent the compressor from running at this resonance frequency. However, due to differences in the instal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/86F24F11/88F24F11/64F24F11/89F24F5/00
CPCF24F5/001F24F11/64F24F11/86F24F11/88F24F11/89
Inventor 李小斌武永德鲍先涛
Owner NINGBO AUX ELECTRIC