CN110410921B - Control method for preventing abnormal sound and air conditioner - Google Patents
Control method for preventing abnormal sound and air conditioner Download PDFInfo
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- CN110410921B CN110410921B CN201910572461.9A CN201910572461A CN110410921B CN 110410921 B CN110410921 B CN 110410921B CN 201910572461 A CN201910572461 A CN 201910572461A CN 110410921 B CN110410921 B CN 110410921B
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method for preventing abnormal sound of an air conditioner, when the air conditioner is switched to a heating mode after running a refrigeration mode or a dehumidification mode, the continuous running time of an air conditioner compressor in the refrigeration mode or the dehumidification mode is obtained, and the humidity value of an electric heating pipe is obtained; respectively comparing the continuous operation time of the compressor with the preset time of the compressor, and comparing the humidity value with the preset humidity critical point, and if the instant start condition is met, controlling the electric auxiliary heat mode of the air conditioner to be started; and if the instant starting condition is not met, controlling the delayed starting of the electric auxiliary heating mode of the air conditioner. According to the invention, the starting of the electric auxiliary heater is accurately controlled through the judgment of two time conditions and one humidity condition, so that the condensed water is evaporated by blowing air by using the internal fan before the electric auxiliary heater is started, the condition that the electric auxiliary heater is started after the air conditioner is in long-time refrigeration/dehumidification operation is avoided, and the use comfort of a user is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method for preventing abnormal sound and an air conditioner.
Background
The air conditioner is one of indispensable electrical apparatus in people's daily life, in some seasons or areas that the difference in temperature is very big day and night, the temperature is too high often to appear in daytime and utilize the air conditioner refrigeration, and the temperature is too low night directly turns into to utilize the air conditioner to heat under the circumstances of not shutting down, and at this moment, the electricity is assisted and is heated and started immediately. The PTC electric auxiliary heating technology of the air conditioner theoretically utilizes additional electric heating to increase the heating quantity, and further enhances the heating effect of the air conditioner.
The existing air conditioner can generate a certain amount of condensed water on the surface of an electric heating pipe when running for a long time in a refrigeration state, if the electric auxiliary heating is started immediately after heating is needed, the condensed water on the surface of the electric heating pipe can absorb heat to boil, and on one hand, the condensed water can absorb heat to boil to generate a violent crack and crack abnormal sound, so that a user is easy to scare, the normal use of the user is influenced, and the user experience is extremely poor; on the other hand, the heating capacity of the electric heating tube may be affected. The prior art can not well solve the problem of violent abnormal sound caused by starting the electric auxiliary heat after the air conditioner is in long-time refrigeration/dehumidification operation.
Disclosure of Invention
The invention solves the problem that the prior air conditioner starts electric auxiliary heat after long-time refrigeration/dehumidification operation to cause violent abnormal sound.
In order to solve the above problems, a first aspect of the present invention provides a control method for preventing abnormal noise of an air conditioner, including:
when the air conditioner is switched to a heating mode after running in a refrigeration mode or a dehumidification mode, acquiring the continuous running time of an air conditioner compressor in the refrigeration mode or the dehumidification mode, and acquiring the humidity value of an electric heating pipe;
respectively comparing the continuous operation time of the compressor with the preset time of the compressor and the humidity value with a preset humidity critical point, and controlling the electric auxiliary heat mode of the air conditioner to be started if the instant starting condition is met; and if the instant starting condition is not met, controlling the delayed starting of the electric auxiliary heating mode of the air conditioner.
According to the invention, the judgment of two time conditions and one humidity condition is added into the control method, and the starting of the electric auxiliary heater is accurately controlled, so that the condensed water is evaporated by blowing air by the internal fan before the electric auxiliary heater is started, the condition that the electric auxiliary heater is started after the air conditioner is in long-time refrigeration/dehumidification operation is avoided, and the use comfort of a user is improved.
Further, the instant start condition includes: the continuous operation time of the compressor is less than the preset time of the compressor, and the humidity value is less than the preset humidity critical point.
Further, when the continuous operation time of the compressor is less than the preset time of the compressor, and the humidity value is greater than or equal to the preset humidity critical point, the air conditioner enters a delay state, and the delay state includes: and starting the inner fan of the air conditioner to run in the heating mode.
Further, the running time of an inner fan of the air conditioner in the heating mode is obtained, when the running time of the inner fan of the air conditioner is longer than the preset time of the inner fan, the time delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is started.
Further, when the continuous operation time of the compressor is greater than or equal to the preset time of the compressor, and the humidity value is greater than the preset humidity critical point, the air conditioner enters a time-delay state, and the time-delay state includes: and starting the inner fan of the air conditioner to run in the heating mode.
Further, after the inner fan of the air conditioner operates for a preset time in the heating mode, the real-time humidity value of the electric heating pipe is continuously acquired until the real-time humidity value is smaller than the preset humidity critical point, the time delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is started.
Further, the time interval for acquiring the real-time humidity value is the preset time of the inner fan.
In a second aspect of the present invention, there is provided an abnormal noise prevention control system for an air conditioner, using the above abnormal noise prevention control method, the system comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the continuous operation time of a compressor of the air conditioner in a refrigeration mode or a dehumidification mode and the operation time of an inner fan in a heating mode; the humidity sensor is used for detecting a humidity value at the electric heating pipe; the judging module is used for judging whether the air conditioner meets a starting condition or not; and the control module is used for controlling the air conditioner to start the electric auxiliary heating mode after the starting condition is met.
In a third aspect of the present invention, an air conditioner is provided, which includes an electric heating pipe, and the above abnormal sound prevention control system is included, wherein the humidity sensor is disposed on the electric heating pipe, and the humidity sensor is one or more humidity sensors.
The invention has the beneficial effects that: according to the invention, the judgment of two time conditions and one humidity condition is added into the control program, so that the starting of the electric auxiliary heat is accurately controlled, the condensed water is evaporated before the electric auxiliary heat is started, the condition that the electric auxiliary heat is violently abnormal when the air conditioner is started after long-time refrigeration/dehumidification operation is avoided, and the use comfort of a user is improved; the condensed water is evaporated before the electric auxiliary heating is started, so that the electric heating pipe is not influenced, and the service life of the electric heating pipe is prolonged; in addition, the control program of the invention has strong operability and better universality.
Drawings
Fig. 1 is a flowchart of an operation process of the control method for preventing abnormal noise according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The invention provides an abnormal sound prevention control method of an air conditioner, fig. 1 is a flow chart of an operation process of the abnormal sound prevention control method of the air conditioner according to the invention, as shown in fig. 1, the method comprises the following contents:
firstly, switching to a heating mode after the air conditioner runs in a cooling mode or a dehumidifying mode for a period of time, wherein an inner fan of the air conditioner runs in the heating mode without entering an electric auxiliary heating mode; acquiring the continuous operation time of the air conditioner compressor in a refrigeration mode or a dehumidification mode, and acquiring the humidity value of the electric heating pipe when the air conditioner compressor is switched to the heating mode;
respectively comparing the continuous operation time of the compressor with the preset time T1 of the compressor, and the humidity value with a preset humidity critical point H, and if the conditions of instant start are met, controlling the electric auxiliary heating mode of the air conditioner to be started immediately;
the instant start condition comprises that the continuous running time of the compressor is less than T1, and the humidity value of the electric heating pipe is less than H, preferably, T1 is 10min, and H is a critical point for forming water drops. Therefore, under the instant starting condition, the continuous running time of the compressor in the refrigeration mode or the dehumidification mode is shorter, and the humidity value of the electric heating pipe is smaller than H, which indicates that no condensed water is generated on the surface of the electric heating pipe at the moment, so that the air conditioner can not generate abnormal sound when the instant starting condition is met, namely the electric auxiliary heating mode is directly started.
And secondly, if the instant starting condition is not met, controlling the electric auxiliary heating mode to be started in a delayed mode. The delayed starting is mainly used for evaporating the condensed water on the surface of the electric heating pipe by utilizing the blowing action of the inner fan under the heating mode before the electric auxiliary heating mode is started so as to ensure that the air conditioner cannot generate abnormal sound after the electric auxiliary heating mode is started.
The specific classification is two cases:
(1) when the continuous operation time of the compressor is less than T1 and the humidity value is more than or equal to H, the air conditioner enters a time delay state, and the time delay state comprises the following steps: and starting the inner fan of the air conditioner to run in the heating mode. In this case, the continuous operation time of the compressor is short but the humidity value is greater than or equal to H, which indicates that a small amount of condensed water is generated on the surface of the electric heating pipe, so that the operation time of the inner fan of the air conditioner in the heating mode is obtained, and after the operation time of the inner fan of the air conditioner is greater than the preset time T2 of the inner fan, the delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is started. Preferably, T2 is 5min, when the internal fan runs T2, the condensed water on the surface of the electric heating tube can be basically dried and evaporated completely,
(2) when the continuous operation time of the compressor is more than or equal to T1 and the humidity value is more than H, the air conditioner enters a time delay state, and the time delay state comprises the following steps: and starting the inner fan of the air conditioner to run in the heating mode. In this case, the continuous operation time of the compressor is long and the humidity value is greater than H, which indicates that a large amount of condensed water is generated on the surface of the electric heating pipe at this time, so that the operation time of the inner fan of the air conditioner in the heating mode is obtained, when the operation time of the inner fan of the air conditioner is greater than the preset time T2 of the inner fan, the real-time humidity value of the electric heating pipe at this time is obtained, and if the real-time humidity value is less than H, the air conditioner is in a delayed state, and the electric auxiliary heating mode of the air conditioner is turned on.
Preferably, if the real-time humidity value is greater than or equal to H, which indicates that the internal fan is not operated T2 to completely evaporate the condensed water on the surface of the electric heating tube at this time, the internal fan continuously acquires the real-time humidity value of the electric heating tube in the heating mode, and the time interval for acquiring the real-time humidity value is preset time T2 of the internal fan, that is, the real-time humidity value of the electric heating tube is detected after T2 is operated each time until the real-time humidity value is less than H, at this time, the condensed water on the surface of the electric heating tube is completely evaporated under the action of the internal fan, the delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is.
It should be noted that the compressor continuous operation time T1 or more and the humidity value H or less are not generally used.
In the invention, the judgment of two time conditions and one humidity condition is added into the control method, and the starting of the electric auxiliary heater is accurately controlled, so that the condensed water is completely evaporated by blowing air by the internal fan before the electric auxiliary heater is started, the condition that the electric auxiliary heater is started after the air conditioner is in long-time refrigeration/dehumidification operation is avoided, and the use comfort of a user is improved; on the other hand, the condensed water is completely evaporated before the electric auxiliary heating starting, so that the adverse effect on the electric heating pipe is avoided, and the service life of the electric heating pipe is prolonged.
In a second aspect of the present invention, there is provided an abnormal noise prevention control system for an air conditioner, using the above abnormal noise prevention control method, the system comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the continuous operation time of a compressor of the air conditioner in a refrigeration mode or a dehumidification mode and the operation time of an inner fan in a heating mode; the humidity sensor is used for detecting a humidity value at the electric heating pipe; the judging module is used for judging whether the air conditioner meets a starting condition or not; and the control module is used for controlling the air conditioner to start the electric auxiliary heating mode after the starting condition is met, wherein the starting condition comprises an instant starting condition and a condition meeting the end of the delayed state of the air conditioner.
The third aspect of the present invention provides an air conditioner, which includes an internal blower, a compressor, an electric heating pipe, and the above abnormal sound prevention control system, wherein the humidity sensors are disposed on the electric heating pipe, and one or more, preferably 3, humidity sensors are uniformly distributed on the electric heating pipe, so as to more accurately detect the humidity value of the electric heating pipe.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A control method for preventing abnormal sound of an air conditioner is characterized by comprising the following steps:
when the air conditioner is switched to a heating mode after running in a refrigeration mode or a dehumidification mode, acquiring the continuous running time of an air conditioner compressor in the refrigeration mode or the dehumidification mode, and acquiring the humidity value at the electric heating pipe;
respectively comparing the continuous operation time of the compressor with the preset time of the compressor and the humidity value with a preset humidity critical point, and controlling the electric auxiliary heat mode of the air conditioner to be started if the instant starting condition is met; and if the instant starting condition is not met, controlling the delayed starting of the electric auxiliary heating mode of the air conditioner.
2. The abnormal noise prevention control method according to claim 1, wherein the instant start condition includes: the continuous operation time of the compressor is less than the preset time of the compressor, and the humidity value is less than the preset humidity critical point.
3. The abnormal sound prevention control method of claim 1, wherein when the continuous operation time of the compressor is less than a preset compressor time and the humidity value is greater than or equal to the preset humidity critical point, the air conditioner enters a delay state, and the delay state comprises: and starting the inner fan of the air conditioner to run in the heating mode.
4. The abnormal sound prevention control method according to claim 3, wherein an operation time of the inner fan of the air conditioner in a heating mode is obtained, and when the operation time of the inner fan of the air conditioner is greater than a preset time of the inner fan, the delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is turned on.
5. The abnormal sound prevention control method of claim 1, wherein when the continuous operation time of the compressor is greater than or equal to a preset compressor time and the humidity value is greater than the preset humidity critical point, the air conditioner enters a delay state, and the delay state comprises: and starting the inner fan of the air conditioner to run in the heating mode.
6. The abnormal sound prevention control method according to claim 5, wherein after the internal fan of the air conditioner operates for a preset time in a heating mode, the real-time humidity value at the electric heating pipe is continuously obtained until the real-time humidity value is smaller than the preset humidity critical point, the time delay state of the air conditioner is finished, and the electric auxiliary heating mode of the air conditioner is started.
7. The abnormal noise prevention control method of claim 6, wherein the time interval for acquiring the real-time humidity value is the preset time of the inner fan.
8. An abnormal noise prevention control system of an air conditioner, characterized in that the abnormal noise prevention control method of any one of claims 1 to 7 is adopted, the system comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the continuous operation time of a compressor of the air conditioner in a refrigeration mode or a dehumidification mode and the operation time of an inner fan in a heating mode; the humidity sensor is used for detecting a humidity value at the electric heating pipe; the judging module is used for judging whether the air conditioner meets a starting condition or not; and the control module is used for controlling the air conditioner to start the electric auxiliary heating mode after the starting condition is met.
9. An air conditioner comprising an electric heating pipe, characterized by comprising the abnormal sound prevention control system according to claim 8, wherein the humidity sensor is provided on the electric heating pipe, and the humidity sensor is one or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910572461.9A CN110410921B (en) | 2019-06-28 | 2019-06-28 | Control method for preventing abnormal sound and air conditioner |
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| CN201910572461.9A CN110410921B (en) | 2019-06-28 | 2019-06-28 | Control method for preventing abnormal sound and air conditioner |
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| CN110410921B true CN110410921B (en) | 2021-01-19 |
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| CN105757886B (en) * | 2016-03-03 | 2018-12-14 | 珠海格力电器股份有限公司 | Air conditioner heating control method and device |
| CN105928141A (en) * | 2016-04-27 | 2016-09-07 | 海信（山东）空调有限公司 | Method for controlling air conditioner and air conditioner |
| CN106871356A (en) * | 2017-02-23 | 2017-06-20 | 广东美的制冷设备有限公司 | The control method and device and air-conditioner of air-conditioner |
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