CN114543330A - Preheating control method and device for compressor of air conditioner and air conditioner - Google Patents
Preheating control method and device for compressor of air conditioner and air conditioner Download PDFInfo
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- CN114543330A CN114543330A CN202210102140.4A CN202210102140A CN114543330A CN 114543330 A CN114543330 A CN 114543330A CN 202210102140 A CN202210102140 A CN 202210102140A CN 114543330 A CN114543330 A CN 114543330A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004804 winding Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a preheating control method and a preheating control device for a compressor of an air conditioner and the air conditioner, wherein the method comprises the following steps: s1: when a starting instruction of the compressor is received and a preset preheating condition is met, controlling a winding of the compressor to be heated with first preheating power; s2: after a preset time, detecting whether the compressor is started successfully; s3: when the compressor is not started successfully, controlling a winding of the compressor to heat with second preheating power, wherein the second preheating power is larger than the first preheating power; repeatedly executing the steps S2 and S3 until the compressor is successfully started. The preheating control method of the compressor of the air conditioner has good preheating improvement effect, can effectively improve the starting success rate of the compressor, and has good user experience.
Description
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to a preheating control method and a preheating control device for a compressor of an air conditioner and the air conditioner.
Background
The conventional air conditioner is preheated by electrifying the compressor after the failed start-up in a low-temperature state so that a winding in the compressor generates heat. Usually, a fixed preheating power is set when the winding is preheated, and the preheating treatment is carried out by adopting the same preheating power between continuous multiple times of starting failures, so that the preheating improvement effect is poor, the starting success rate cannot be effectively improved, and the user experience is not good.
Disclosure of Invention
An object of the present invention is to provide a preheating control method for a compressor of an air conditioner, which can effectively increase the success rate of starting the compressor.
A further object of the present invention is to enable the preheating power of the air conditioner to be automatically adjusted to reduce the ineffective repeated preheating.
Particularly, the present invention provides a preheating control method of a compressor of an air conditioner, wherein the method comprises the following steps:
s1: when a starting instruction of a compressor of the air conditioner is received and a preset preheating condition is met, controlling a winding of the compressor to be heated with first preheating power;
s2: after a preset time, detecting whether the compressor is started successfully;
s3: when the compressor is not started successfully, controlling a winding of the compressor to heat with second preheating power, wherein the second preheating power is greater than the first preheating power;
the steps S2 and S3 are repeatedly performed until the compressor is successfully started.
Optionally, the air conditioner is set with maximum preheating power and minimum preheating power of windings of the compressor;
the step of controlling the windings of the compressor to heat at the first preheating power includes:
acquiring minimum preheating power as first preheating power;
the windings of the compressor are controlled to be energized and heated at a first preheating power.
Optionally, the step of controlling the windings of the compressor to heat at the second preheating power comprises:
acquiring maximum preheating power and minimum preheating power;
calculating the average value of the maximum preheating power and the minimum preheating power to obtain second preheating power;
and controlling the winding of the compressor to heat with the second preheating power, and setting the second preheating power as the new minimum preheating power.
Optionally, the step of determining whether the compressor satisfies a preset preheating condition includes:
acquiring an operation mode of an air conditioner;
acquiring the ambient temperature of the environment where an outdoor unit of an air conditioner is located;
whether the compressor satisfies a preset preheating condition is determined based on the operation mode and the ambient temperature.
Optionally, the step of determining whether the compressor satisfies a preset warm-up condition based on the operation mode and the ambient temperature includes:
judging whether the operation mode is a heating mode or not;
if so, judging whether the environmental temperature is smaller than a preset temperature threshold value or not;
and when the ambient temperature is less than the preset temperature threshold value, determining that the compressor meets the preset preheating condition.
Optionally, a temperature sensor is arranged outside the outdoor unit; the step of obtaining the ambient temperature of the environment where the outdoor unit of the air conditioner is located includes:
acquiring a detection value of a temperature sensor to obtain a first temperature value;
acquiring temperature information in weather forecast information of an area where the outdoor unit is located to obtain a second temperature value;
and calculating the average value of the first temperature value and the second temperature value to obtain the ambient temperature.
Optionally, the step of detecting whether the compressor is started successfully comprises:
judging whether the current working current of the compressor is greater than a preset current threshold value or not;
if so, determining that the compressor is started successfully;
if not, determining that the compressor is not started successfully.
Optionally, the step of detecting whether the compressor is started successfully comprises:
judging whether the current power of the compressor is greater than a preset power threshold value or not;
if so, determining that the compressor is started successfully;
if not, determining that the compressor is not started successfully.
The invention also provides a control device of the air conditioner, which comprises a processor and a memory, wherein the memory stores a machine executable program, and the machine executable program is used for realizing the preheating control method of the compressor of the air conditioner when being executed by the processor.
The invention also provides an air conditioner which is provided with the control device of the air conditioner.
According to the preheating control method of the compressor of the air conditioner, when the starting instruction of the compressor of the air conditioner is received and the preset preheating condition is met, the winding of the compressor is controlled to be heated with the first preheating power, and when the compressor is not started successfully, the winding of the compressor is controlled to be heated with the second preheating power larger than the first preheating power, and the steps are repeatedly executed until the compressor is started successfully, so that the preheating treatment is carried out by adopting higher preheating power after the compressor is failed to be started, the preheating improvement effect is good, the starting success rate of the compressor can be effectively improved, and the user experience is good.
Further, in the preheating control method of the compressor of the air conditioner, the second preheating power is obtained by calculating the average value of the maximum preheating power and the minimum preheating power, the winding of the compressor is controlled to be heated with the second preheating power, and the second preheating power is set as the new minimum preheating power, so that the preheating power can be automatically adjusted, invalid repeated preheating is reduced, the preheating effect is further enhanced, the starting success rate of the compressor is improved, and the service life and the reliability of the compressor are further ensured.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a block diagram schematically illustrating a component configuration of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a preheating control method of a compressor of the air conditioner shown in fig. 1.
Fig. 3 is a block diagram schematically showing the component configuration of the control device of the air conditioner shown in fig. 1.
Fig. 4 is another flowchart illustrating a preheating control method of a compressor of the air conditioner shown in fig. 1.
Fig. 5 is a detailed flowchart illustrating a preheating control method of a compressor of the air conditioner shown in fig. 1.
Detailed Description
Fig. 1 is a block diagram schematically illustrating a component configuration of an air conditioner 100 according to an embodiment of the present invention. Fig. 2 is a flowchart illustrating a preheating control method of the compressor 121 of the air conditioner 100 shown in fig. 1. Fig. 3 is a block diagram schematically showing the component configuration of the control device 200 of the air conditioner 100 shown in fig. 1.
As shown in fig. 1, an embodiment of the present invention provides an air conditioner 100, which is an air conditioning apparatus capable of cooling or heating an indoor environment. The air conditioner 100 includes an indoor unit 101 and an outdoor unit 102. An air inlet and an air outlet are formed in a casing (not shown) of the indoor unit 101, an indoor heat exchanger 111 and an indoor fan 112 are arranged in the casing, and air entering the casing from the air inlet exchanges heat with the indoor heat exchanger 111 to form heat exchange airflow which flows into the indoor through the air outlet. The outdoor unit 102 includes a compressor 121, an outdoor heat exchanger 122, and an outdoor fan 123. The compressor 121, the outdoor heat exchanger 122, the throttle element (not shown), and the indoor heat exchanger 111 together constitute a refrigerant circulation system of the air conditioner 100. As shown in fig. 2, the method for controlling preheating of the compressor 121 of the air conditioner 100 according to the embodiment of the present invention includes the following steps:
s1: when a start instruction of the compressor 121 of the air conditioner 100 is received and a preset preheating condition is satisfied, controlling the winding 124 of the compressor 121 to heat with a first preheating power;
s2: after a preset time, detecting whether the compressor 121 is started successfully;
s3: when the compressor 121 is not started successfully, controlling the winding 124 of the compressor 121 to heat with a second preheating power, wherein the second preheating power is greater than the first preheating power;
steps S2 and S3 are repeatedly performed until the compressor 121 is successfully started.
According to the preheating control method for the compressor 121 of the air conditioner 100, when the starting instruction of the compressor 121 of the air conditioner 100 is received and the preset preheating condition is met, the winding 124 of the compressor 121 is controlled to be heated with the first preheating power, and when the compressor 121 is not started successfully, the winding 124 of the compressor 121 is controlled to be heated with the second preheating power larger than the first preheating power, and the steps are repeatedly executed until the compressor 121 is started successfully, so that the preheating treatment is performed by adopting higher preheating power after the compressor 121 is failed to be started, the preheating improvement effect is good, the starting success rate of the compressor 121 can be effectively improved, and the user experience is good.
As shown in fig. 3, the control device 200 of the air conditioner 100 according to the embodiment of the present invention includes a memory 202 and a processor 201, wherein the memory 202 stores a machine-executable program 220, and when the machine-executable program 220 is executed by the processor 201, the control device is configured to implement the aforementioned warm-up control method for the compressor 121 of the air conditioner 100.
In some embodiments, the air conditioner 100 of the embodiment of the present invention sets the maximum preheating power and the minimum preheating power of the winding 124 of the compressor 121; in step S1, the step of controlling the winding 124 of the compressor 121 to be heated with the first preheating power includes:
acquiring minimum preheating power as first preheating power;
the winding 124 of the compressor 121 is controlled to be energized and heated with the first preheating power.
The maximum preheating power and the minimum preheating power of the winding 124 of the compressor 121 may be previously stored in the air conditioner 100. The maximum preheating power, i.e., the maximum power at which the windings 124 can be heated, and the minimum preheating power, i.e., the minimum power at which the windings 124 can be heated.
In some embodiments, the step of controlling the windings 124 of the compressor 121 to be heated at the second preheating power in step S3 includes:
acquiring maximum preheating power and minimum preheating power;
calculating the average value of the maximum preheating power and the minimum preheating power to obtain second preheating power;
the winding 124 of the compressor 121 is controlled to be heated with the second preheating power and the second preheating power is set to the new minimum preheating power.
In the preheating control method of the compressor 121 of the air conditioner 100 according to the embodiment of the present invention, the second preheating power is obtained by calculating the average value of the maximum preheating power and the minimum preheating power, the winding 124 of the compressor 121 is controlled to be heated with the second preheating power, and the second preheating power is set as the new minimum preheating power, so that the preheating power can be automatically adjusted, invalid repeated preheating is reduced, the preheating effect is further enhanced, the starting success rate of the compressor 121 is improved, and the service life and the reliability of the compressor 121 are further ensured. Meanwhile, the second preheating power is gradually increased in a step mode, so that the preheating effect is enhanced, and meanwhile, the power consumption is reduced. It can be understood that the second preheating power can maximally reach the maximum preheating power.
In step S2, the preset time period may be, for example, 1-3 min. For example, after controlling the winding 124 of the compressor 121 to heat with the first preheating power for 3min, whether the compressor 121 is successfully started is detected, and similarly, after controlling the winding 124 of the compressor 121 to heat with the second preheating power for 3min, whether the compressor 121 is successfully started is detected again. Therefore, the preheating power can be adjusted relatively quickly, but not too frequently, and the dual purposes of improving the preheating effect and saving energy are achieved.
In some embodiments, the step of detecting whether the start of the compressor 121 is successful in step S2 includes:
judging whether the current working current of the compressor 121 is greater than a preset current threshold value;
if so, determining that the compressor 121 is started successfully;
if not, it is determined that the compressor 121 has not been successfully started.
In other embodiments, the step of detecting whether the compressor 121 is successfully started in step S2 includes:
judging whether the current power of the compressor 121 is greater than a preset power threshold value;
if so, determining that the compressor 121 is started successfully;
if not, it is determined that the compressor 121 has not been successfully started.
When the compressor 121 is started successfully, the operating current thereof gradually increases and reaches a certain current range. Therefore, by detecting the current operating current value of the compressor 121, it can be determined whether the compressor 121 is successfully started. The preset current threshold may be, for example, 0. The preset power threshold may be, for example, 0. The operability and reliability of the basis for judging whether the compressor 121 is started successfully are higher by comparing the current working current value of the compressor 121 with the preset current threshold. The current working current of the compressor 121 may be implemented by a current detection circuit, which is not described herein.
Fig. 4 is another flowchart illustrating a preheating control method of the compressor 121 of the air conditioner 100 shown in fig. 1. In the preheating control method of the compressor 121 of the air conditioner 100 according to the embodiment of the present invention, the step of determining whether the compressor 121 satisfies the preset preheating condition includes:
s402: acquiring an operation mode of the air conditioner 100;
s404: acquiring the ambient temperature of the environment where the outdoor unit 102 of the air conditioner 100 is located;
s406: it is determined whether the compressor 121 satisfies a preset warm-up condition based on the operation mode and the ambient temperature.
Specifically, the step of determining whether the compressor 121 satisfies the preset warm-up condition based on the operation mode and the ambient temperature at step S406 includes:
judging whether the operation mode is a heating mode or not;
if so, judging whether the environmental temperature is smaller than a preset temperature threshold value or not;
when the ambient temperature is less than the preset temperature threshold, it is determined that the compressor 121 satisfies the preset preheating condition.
The air conditioner 100 according to the embodiment of the present invention starts the preheating control of the compressor 121 only when the operation mode is the heating mode and the ambient temperature is less than the preset temperature threshold, instead of continuously heating, so as to achieve the purpose of saving energy and electricity. The preset temperature threshold may be, for example, 0 ℃.
As shown in fig. 1, a temperature sensor 103 is provided outside the outdoor unit 102. In step S404, the step of acquiring the ambient temperature of the environment where the outdoor unit 102 of the air conditioner 100 is located includes:
acquiring a detection value of the temperature sensor 103 to obtain a first temperature value;
acquiring temperature information in weather forecast information of an area where the outdoor unit 102 is located to obtain a second temperature value;
and calculating the average value of the first temperature value and the second temperature value to obtain the ambient temperature.
In the preheating control method of the compressor 121 of the air conditioner 100 according to the embodiment of the present invention, the detection value of the temperature sensor 103 is used as the first temperature value, the temperature information in the weather forecast information is obtained as the second temperature value, and the average of the two is used as the ambient temperature, so that the accuracy of the ambient temperature can be ensured, and the accuracy of the judgment on whether the compressor 121 meets the preset preheating condition can be further ensured. The temperature information of the weather forecast information can be obtained by providing an obtaining module (not shown) in the air conditioner 100, and the obtaining module is configured to obtain the weather forecast information of the area where the outdoor unit 102 is located.
Fig. 5 is a detailed flowchart illustrating a preheating control method of the compressor 121 of the air conditioner 100 shown in fig. 1. The preheating control method of the compressor 121 of the air conditioner 100 according to the embodiment of the present invention includes the steps of:
s502: receiving a start instruction of the compressor 121 of the air conditioner 100, determining that the operation mode of the air conditioner 100 is a heating mode, and the ambient temperature is less than a preset temperature threshold.
S504: the winding 124 of the compressor 121 is controlled to be heated with a first preheating power, which is the minimum preheating power of the winding 124 of the compressor 121.
S506: after a preset time period, it is detected whether the start of the compressor 121 is successful. If the determination result in step S506 is yes, step S508 is executed; when the determination result of step S506 is no, step S510 is performed.
S508: the air conditioner 100 normally operates according to a normal program.
S510: and calculating the average value of the maximum preheating power and the minimum preheating power to obtain second preheating power.
S512: the winding 124 of the compressor 121 is controlled to be heated with the second preheating power and the second preheating power is set to the new minimum preheating power.
S514: after a preset time period, the compressor 121 is restarted again. After step S514, the process returns to step S506, and it is checked again whether the start of the compressor 121 is successful. Steps S506 to S514 are repeatedly executed until the determination result of step S506 is yes.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A preheating control method of a compressor of an air conditioner includes:
s1: when a starting instruction of the compressor is received and a preset preheating condition is met, controlling a winding of the compressor to be heated with first preheating power;
s2: after a preset time, detecting whether the compressor is started successfully;
s3: when the compressor is not started successfully, controlling a winding of the compressor to heat with second preheating power, wherein the second preheating power is larger than the first preheating power;
repeatedly executing the steps S2 and S3 until the compressor is successfully started.
2. The method of claim 1, wherein the air conditioner is set with a maximum preheating power and a minimum preheating power of a winding of the compressor;
the step of controlling the windings of the compressor to heat at a first preheating power includes:
acquiring the minimum preheating power as the first preheating power;
controlling the energization of the windings of the compressor and heating at the first preheating power.
3. The method of claim 2, wherein the step of controlling the windings of the compressor to heat at a second preheat power comprises:
acquiring the maximum preheating power and the minimum preheating power;
calculating the average value of the maximum preheating power and the minimum preheating power to obtain the second preheating power;
controlling a winding of the compressor to heat with the second preheating power and setting the second preheating power to the new minimum preheating power.
4. The method of claim 1, wherein the step of determining whether the compressor satisfies a preset preheating condition comprises:
acquiring an operation mode of the air conditioner;
acquiring the environment temperature of the environment where an outdoor unit of the air conditioner is located;
determining whether the compressor satisfies the preset preheating condition based on the operation mode and the ambient temperature.
5. The method of claim 4, wherein the step of determining whether the compressor satisfies the preset warm-up condition based on the operation mode and the ambient temperature comprises:
judging whether the operation mode is a heating mode or not;
if so, judging whether the environmental temperature is smaller than a preset temperature threshold value;
and when the environment temperature is smaller than the preset temperature threshold value, determining that the compressor meets the preset preheating condition.
6. The method of claim 4, wherein a temperature sensor is provided at an outside of the outdoor unit; the step of obtaining the ambient temperature of the environment where the outdoor unit of the air conditioner is located includes:
acquiring a detection value of the temperature sensor to obtain a first temperature value;
acquiring temperature information in weather forecast information of an area where the outdoor unit is located to obtain a second temperature value;
and calculating the average value of the first temperature value and the second temperature value to obtain the environment temperature.
7. The method of claim 1, wherein the step of detecting whether the compressor is successfully started comprises:
judging whether the current working current of the compressor is larger than a preset current threshold value or not;
if so, determining that the compressor is started successfully;
if not, determining that the compressor is not started successfully.
8. The method of claim 1, wherein the step of detecting whether the compressor is successfully started comprises:
judging whether the current power of the compressor is greater than a preset power threshold value or not;
if so, determining that the compressor is started successfully;
if not, determining that the compressor is not started successfully.
9. A control apparatus of an air conditioner, comprising a processor and a memory, the memory storing a machine-executable program, and the machine-executable program being executed by the processor for implementing the warm-up control method of the compressor of the air conditioner according to any one of claims 1 to 8.
10. An air conditioner having the control device of the air conditioner according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210102140.4A CN114543330A (en) | 2022-01-27 | 2022-01-27 | Preheating control method and device for compressor of air conditioner and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210102140.4A CN114543330A (en) | 2022-01-27 | 2022-01-27 | Preheating control method and device for compressor of air conditioner and air conditioner |
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| CN202210102140.4A Pending CN114543330A (en) | 2022-01-27 | 2022-01-27 | Preheating control method and device for compressor of air conditioner and air conditioner |
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| CN113623793A (en) * | 2021-08-23 | 2021-11-09 | 宁波奥克斯电气股份有限公司 | Compressor preheating control method, air conditioner and computer readable storage medium |
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2022
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| KR20070033711A (en) * | 2005-09-22 | 2007-03-27 | 삼성전자주식회사 | Compressor Control Device and Method |
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Application publication date: 20220527 |