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Variable-frequency air conditioner control method and device

A frequency conversion air conditioner and control method technology, applied in heating and ventilation control systems, heating methods, high-efficiency adjustment technology, etc., can solve problems such as inaccurate adjustment

Active Publication Date: 2017-11-28
SHENZHEN SKYWORTH AIR CONDITIONING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the energy-saving operation parameters of the above-mentioned energy-saving method are already fixed, and will be affected by the compressor phase current, condenser tube temperature sensor and other devices, and cannot be adjusted accurately in real time according to the load condition

Method used

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Examples

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Embodiment 1

[0025] figure 1 It is a flow chart of an inverter air conditioner control method provided by Embodiment 1 of the present invention. This embodiment is applicable to the energy-saving control process of inverter air conditioners, such as the energy-saving control in the air-conditioning refrigeration process. The method can be implemented by hardware and / or software. For example, it can be realized by the control unit on the inverter air conditioner. Such as figure 1 As shown, the inverter air conditioner control method includes the following steps:

[0026] Step S101: Collect indoor temperature and outdoor temperature at a first preset frequency in the first energy-saving mode.

[0027] Wherein, the first energy-saving mode is the conventional energy-saving mode of the inverter air conditioner. The control mode and operating parameters in this mode are as described in the background technology. For details, reference may be made to the related technologies and parameters of ...

Embodiment 2

[0036] Based on the first embodiment, this embodiment provides the operation process of the inverter air conditioner in the second energy-saving mode, including: reducing the frequency of the compressor; The preset conditions and the collected information adjust the speed of the internal fan, the speed of the external fan and the opening of the electronic expansion valve.

[0037] Wherein, the second preset frequency in the second energy-saving mode may be the same as or different from the first preset frequency in the first energy-saving mode, which may be set according to actual needs. The preset condition means that there is a one-to-one correspondence between the speed of the internal fan, the speed of the external fan, the opening of the electronic expansion valve, the outdoor temperature, the temperature difference (the difference between the indoor temperature and the target temperature set by the user), and the frequency of the compressor. , and control the speed of th...

Embodiment 3

[0048] On the basis of the above-mentioned embodiments, this embodiment provides a process for automatically exiting the second energy-saving mode, image 3 A flow chart of an inverter air conditioner control method provided in Embodiment 3, as shown in image 3 As shown, the inverter air conditioner control method includes the following steps:

[0049] Step S301: The inverter air conditioner operates in the first energy-saving mode according to the operating parameters in this mode, and collects indoor temperature and outdoor temperature at a first preset frequency in the first energy-saving mode.

[0050] Step S302: Detect whether the indoor temperature and outdoor temperature collected in the first energy-saving mode meet the preset temperature conditions, that is, T(outdoor)≤A°C and T(indoor)≤B°C. If yes, enter step S303, if no, return to step S301 to continue collecting temperature.

[0051] Step S303: Detect whether the duration of meeting the preset temperature condit...

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Abstract

The embodiment of the invention discloses a variable-frequency air conditioner control method and device. The method comprises the steps that under a first energy saving mode, the indoor temperature and the outdoor temperature are collected according to a first preset frequency; whether the indoor temperature and the outdoor temperature meet preset temperature conditions or not is detected; if yes, whether the duration that the indoor temperature and the outdoor temperature meet the preset temperature conditions reaches first preset time or not is detected; and if yes, a second energy saving mode is started, and a variable-frequency air conditioner is controlled to operate according to operation parameters under the second energy saving mode. According to the variable-frequency air conditioner control method and device, the variable-frequency air conditioner can select the proper energy-saving operation parameters according to the change of the indoor temperature and the outdoor temperature, accurate temperature control is achieved while energy is saved, the user comfort is improved, especially under the conditions that after a user falls asleep at night, both the energy consumption amount and the amount of generated heat are low, more energy is saved through the variable-frequency air conditioner, and the user feels comfortable.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to a control method and device for an inverter air conditioner. Background technique [0002] With the continuous popularization of consumers' low-carbon and energy-saving concepts, inverter air conditioners have become the mainstream in the development of energy-saving air-conditioning industry. It can not only control the air conversion status in various operating processes of air-conditioning, but also improve the efficiency of air-conditioning and reduce the power consumption of air-conditioning. premise and basis. [0003] The control method of inverter air conditioners currently on the market is usually to determine the frequency operating range of the compressor through the building load, that is, the outdoor ambient temperature, and then control the compressor according to the room load, that is, the difference between the indoor ambient temperature and the s...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCY02B30/70
Inventor 杜文超
Owner SHENZHEN SKYWORTH AIR CONDITIONING TECH CO LTD
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