A control method and device of an air conditioner, the air conditioner, a storage medium and a program product

Abstract

The application discloses a kind of air conditioner control method, device, air conditioner, storage medium and computer program product, air conditioner includes air source heat pump system and waterside system;Air source heat pump system has compressor;Air conditioner has for adjusting the noise comfort mode generated when air conditioner operates;The method comprises: if air conditioner receives the instruction of opening comfort mode, then after indoor environment temperature reaches set indoor environment temperature, air conditioner opens comfort mode, whether to adjust the noise emitted by air conditioner according to indoor noise value;If it is determined to adjust the noise emitted by air conditioner, then according to indoor noise value and outlet water temperature, the operating frequency of compressor and the operating mode of air conditioner are controlled;If it is determined not to adjust the noise emitted by air conditioner, then according to outlet water temperature, the operating frequency of compressor is controlled.The scheme, by adjusting the noise emitted by air conditioner according to indoor noise value and air conditioner outlet water temperature, thereby reducing the noise received in the premise of not affecting indoor temperature, improve user experience.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, an air conditioner, a storage medium, and a computer program product. BACKGROUND

[0002] During use of an air conditioner, noise generated by operation of a compressor is transmitted to the indoor through a pipeline, thereby affecting user experience. Related solutions reduce noise by reducing the frequency of the unit, but this results in a long time for the indoor temperature to change to the indoor comfortable temperature, thereby reducing environmental comfort.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent an acknowledgement that the above content is prior art. SUMMARY

[0004] The present application aims to provide an air conditioner control method and device, an air conditioner, a storage medium, and a computer program product, to solve the problem of large noise in the indoor during operation of an air conditioner in related solutions, thereby affecting user experience, and to achieve the effect of adjusting noise emitted by the air conditioner according to an indoor noise value and an air conditioner outlet water temperature, thereby reducing noise received in the indoor without affecting the indoor temperature, and improving user experience.

[0005] The present application provides an air conditioner control method, wherein the air conditioner comprises an air source heat pump system and a water side system; the air source heat pump system and the water side system exchange heat through a heat exchanger; the air source heat pump system has a compressor; the operation mode of the air conditioner comprises a comfort mode; the comfort mode is used to adjust noise generated during operation of the air conditioner; the method comprises: during operation of the air conditioner, if the air conditioner receives an instruction to turn on the comfort mode, obtaining an indoor environment temperature, an outlet water temperature of the heat exchanger, and an indoor noise value; after the indoor environment temperature reaches a set indoor environment temperature, controlling the air conditioner to turn on the comfort mode, and determining whether to adjust noise emitted by the air conditioner according to the indoor noise value; if it is determined to adjust noise emitted by the air conditioner, controlling the operation frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature; and if it is determined not to adjust noise emitted by the air conditioner, controlling the operation frequency of the compressor according to the outlet water temperature.

[0006] In some embodiments, determining whether to adjust noise emitted by the air conditioner according to the indoor noise value comprises: recording the difference between the indoor noise value and a set noise value as a noise difference value, and judging the size relationship between the noise difference value and a set noise difference value; if the noise difference value is greater than or equal to the set noise difference value, it is determined to adjust noise emitted by the air conditioner; and if the noise difference value is less than the set noise difference value, it is determined not to adjust noise emitted by the air conditioner.

[0007] In some embodiments, the method further comprises: recording a difference between the indoor noise value and a set noise value as a noise difference value; determining a size relationship between the noise difference value and a set noise difference value; if the noise difference value is less than the set noise difference value, keeping the operating frequency of the compressor unchanged; and if the noise difference value is greater than or equal to the set noise difference value, determining the size of the temperature difference value; if the temperature difference value is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; and if the temperature difference value is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein the first range > the second range, and the first adjustment amount > the second adjustment amount.

[0008] In some embodiments, the method further comprises: recording a difference between the indoor noise value and a set noise value as a noise difference value; determining a size relationship between the noise difference value and a set noise difference value; if the noise difference value is less than the set noise difference value, keeping the operating frequency of the compressor unchanged; and if the noise difference value is greater than or equal to the set noise difference value, determining the size of the temperature difference value; if the temperature difference value is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; and if the temperature difference value is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein the first range > the second range, and the first adjustment amount > the second adjustment amount.

[0009] In some embodiments, the method further comprises: recording a difference between the indoor noise value and a set noise value as a noise difference value; determining a size relationship between the noise difference value and a set noise difference value; if the noise difference value is less than the set noise difference value, keeping the operating frequency of the compressor unchanged; and if the noise difference value is greater than or equal to the set noise difference value, determining the size of the temperature difference value; if the temperature difference value is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; and if the temperature difference value is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein the first range > the second range, and the first adjustment amount > the second adjustment amount.

[0010] In some embodiments, the air source heat pump system further comprises an electronic expansion valve and a fan; and the method further comprises: when the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the outdoor fan are also reduced.

[0011] According to the method, the application provides a control device of an air conditioner. The air conditioner comprises an air source heat pump system and a water side system. The air source heat pump system and the water side system exchange heat through a heat exchanger. The air source heat pump system has a compressor. The operation mode of the air conditioner comprises a comfort mode. The comfort mode is used to adjust the noise generated by the air conditioner during operation. The device comprises: an acquisition unit configured to acquire the indoor environment temperature, the outlet water temperature of the heat exchanger and the indoor noise value if the air conditioner receives an instruction to start the comfort mode during operation of the air conditioner; a control unit configured to control the air conditioner to start the comfort mode after the indoor environment temperature reaches a set indoor environment temperature, and determine whether to adjust the noise generated by the air conditioner according to the indoor noise value; the control unit is further configured to control the operation frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature if it is determined to adjust the noise generated by the air conditioner; and the control unit is further configured to control the operation frequency of the compressor according to the outlet water temperature if it is determined not to adjust the noise generated by the air conditioner.

[0012] In some embodiments, the control unit determines whether to adjust the noise generated by the air conditioner according to the indoor noise value, which comprises: recording the difference between the indoor noise value and a set noise value as a noise difference value, judging the size relationship between the noise difference value and a set noise difference value, determining to adjust the noise generated by the air conditioner if the noise difference value is greater than or equal to the set noise difference value, and determining not to adjust the noise generated by the air conditioner if the noise difference value is less than the set noise difference value.

[0013] In some embodiments, the control unit controls the operation frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature, which comprises: recording the difference between the outlet water temperature and a set outlet water temperature as a temperature difference value, judging the size relationship between the temperature difference value and a set temperature difference value, reducing the operation frequency of the compressor if the temperature difference value is greater than or equal to the set temperature difference value, controlling the operation frequency of the compressor according to the temperature difference value and the indoor noise value after a preset time, and controlling the air conditioner to exit the comfort mode if the temperature difference value is less than the set temperature difference value.

[0014] In some embodiments, the control unit controls the operating frequency of the compressor according to the temperature difference value and the indoor noise value, including: recording the difference between the indoor noise value and a set noise value as a noise difference value, judging the size relationship between the noise difference value and a set noise difference value; if the noise difference value is less than the set noise difference value, keeping the operating frequency of the compressor unchanged; if the noise difference value is greater than or equal to the set noise difference value, judging the size of the temperature difference value; if the temperature difference value is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; if the temperature difference value is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein the first range > the second range, and the first adjustment amount > the second adjustment amount.

[0015] In some embodiments, the control unit controls the operating frequency of the compressor according to the water outlet temperature, including: recording the difference between the water outlet temperature and a set water outlet temperature as a temperature difference value, judging the size relationship between the temperature difference value and a set temperature difference value; if the temperature difference value is greater than or equal to the set temperature difference value, reducing the operating frequency of the compressor; if the temperature difference value is less than the set temperature difference value, keeping the operating frequency of the compressor unchanged.

[0016] In some embodiments, the air source heat pump system further has an electronic expansion valve and a fan; the control unit is further configured to, when reducing the operating frequency of the compressor, also reduce the opening degree of the electronic expansion valve and the rotating speed of the outdoor fan.

[0017] In order to match the above device, the present application further provides an air conditioner, including the above-mentioned control device of the air conditioner.

[0018] In order to match the above method, the present application further provides a storage medium, including a stored program, wherein when the program runs, the device where the storage medium is located executes the above-mentioned control method of the air conditioner.

[0019] In order to match the above method, the present application further provides a computer program product, including a computer program, and when the computer program product is processed and executed, the steps of the above-mentioned control method of the air conditioner are realized.

[0020] The air conditioner has a comfort mode for adjusting noise generated by the air conditioner; when the air conditioner is running, if the air conditioner receives an instruction to start the comfort mode, the air conditioner starts the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise generated by the air conditioner according to the indoor noise value; if it is determined to adjust the noise generated by the air conditioner, the operation frequency of the compressor and the operation mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise generated by the air conditioner, the operation frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise generated by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0021] Other features and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or can be learned by practice of the present application.

[0022] The technical solutions of the present application will be described in further detail below with the aid of the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The flowchart of an embodiment of the control method of the air conditioner of the present application;

[0024] Figure 2 The structural schematic diagram of an embodiment of the control device of the air conditioner of the present application;

[0025] Figure 3 The system structural schematic diagram of the air conditioner of the present application;

[0026] Figure 4 The flowchart of the comfort mode of the air conditioner of the present application.

[0027] In combination with the accompanying drawings, the reference signs in the embodiments of the present application are as follows:

[0028] 1-compressor; 2-four-way valve; 3-first heat exchanger; 4-fan; 5-first throttling valve; 6-second throttling valve; 7-second heat exchanger; 8-gas-liquid separator; 9-inlet water temperature temperature sensing bag; 10-outlet water temperature temperature sensing bag; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0030] According to an embodiment of the present application, a control method of an air conditioner is provided, the air conditioner comprising an air source heat pump system and a water side system; the air source heat pump system and the water side system exchange heat through a heat exchanger, which is specifically a second heat exchanger 7 in Figure 3 ; the air source heat pump system has a compressor.

[0031] The system structure of the air conditioner is shown in Figure 3 , which comprises a compressor 1, a four-way valve 2, a first heat exchanger 3, a fan 4, a first throttling valve 5, a second throttling valve 6, a second heat exchanger 7, and a gas-liquid separator 8. When the air conditioner is in heating operation, the first heat exchanger 3 is an evaporator, and high-temperature refrigerant exchanges heat with the water side system through the second heat exchanger 7, thereby transferring heat to the user side. The second heat exchanger 7 can be a plate heat exchanger. Specifically, the high-temperature and high-pressure refrigerant discharged from the compressor 1 exchanges heat with the cold water flowing into the second heat exchanger 7 after passing through the four-way valve 2, and then the hot water is supplied to the user side, and the cooled refrigerant sequentially passes through the second throttling valve 6, the first throttling valve 5, the first heat exchanger 3, the four-way valve 2, and the gas-liquid separator 8, and then returns to the compressor. In some embodiments, in the heating mode, the first throttling valve 5 throttles and depressurizes, and the second throttling valve 6 is in a fully open state; in the cooling mode, the first throttling valve 5 is fully open, and the second throttling valve 6 throttles and depressurizes.

[0032] The operation mode of the air conditioner includes a comfort mode; the comfort mode is used to adjust the noise generated by the air conditioner during operation.

[0033] The air conditioner generates noise during operation, although the noise generated by the air conditioner will not be higher than the nominal noise value, but it may be near the nominal noise value for a long time, that is, the air conditioner generates a large noise for a long time. Since the unit frequency of the air conditioner during cooling will not be too high, the air conditioner will not generate a large noise; in the heating mode, a large noise will be generated due to the high operating frequency. Therefore, the air conditioner of the present scheme has a comfort mode, when the user considers that the noise generated by the air conditioner is too large during heating operation of the air conditioner, the noise needs to be reduced, at this time the user can start the comfort mode, which reduces the noise generated by the air conditioner without affecting the indoor comfort, thereby improving the user comfort.

[0034] An embodiment of the method of the present application is shown in the flowchart of Figure 1 . The control method of the air conditioner can comprise steps S110 to S140.

[0035] At step S110, during operation of the air conditioner, if the air conditioner receives an instruction to start the comfort mode, the indoor environment temperature, the outlet water temperature of the heat exchanger, and the indoor noise value are obtained.

[0036] The indoor unit of the air conditioner is provided with a noise collector, which can collect the indoor noise, including the indoor noise when the air conditioner is stopped and the indoor noise when the air conditioner is running. The outlet water temperature of the heat exchanger is collected by the outlet water temperature temperature-sensing bag 10.

[0037] At step S120, after the indoor environment temperature reaches the set indoor environment temperature, the air conditioner is controlled to start the comfort mode, and whether to adjust the noise emitted by the air conditioner is determined according to the indoor noise value.

[0038] After the air conditioner receives the instruction of starting the comfort mode sent by the user, the air conditioner does not directly enter the comfort mode, but first determines whether the indoor environment temperature reaches the set indoor environment temperature, so as to determine whether the air conditioner starts the comfort mode. The set indoor environment temperature is the target indoor temperature set by the user. When the indoor environment temperature has not reached the set indoor environment temperature, the air conditioner may be in the case of just starting or just ending defrosting. In order to ensure the comfort of the indoor environment, it is necessary to increase the operating frequency as soon as possible to improve the heating capacity, so the air conditioner temporarily does not enter the comfort mode, and the comfort mode is started after the indoor environment temperature reaches the set indoor environment temperature.

[0039] Optionally, whether to start the comfort mode can be determined according to the difference between the indoor environment temperature and the set indoor environment temperature. Specifically, the difference between the indoor environment temperature and the set indoor environment temperature is ΔT, if ΔT≥set value T1, the air conditioner does not start the comfort mode, and the unit operates at a higher frequency for heating; if ΔT

[0040] In some embodiments, in step S120, the specific process of determining whether to adjust the noise emitted by the air conditioner according to the indoor noise value includes: recording the difference between the indoor noise value and the set noise value as a noise difference value, determining the size relationship between the noise difference value and the set noise difference value; if the noise difference value is greater than or equal to the set noise difference value, it is determined to adjust the noise emitted by the air conditioner; if the noise difference value is less than the set noise difference value, it is determined not to adjust the noise emitted by the air conditioner.

[0041] The set noise value is the noise value in the indoor environment when the air conditioner stops running. For example, the indoor noise is collected when the air conditioner is not started, and a set containing multiple noise values is obtained. The noise values that suddenly increase are removed from the set, and the noise values that are relatively stable and have a long duration are retained. The average value of the set is taken as the set noise value.

[0042] When the air conditioner enters comfort mode, it first determines whether indoor noise adjustment is necessary. Specifically, the difference between the indoor noise level and the set noise level is ΔL. If ΔL < L1, the air conditioner noise is considered low, and the ambient noise level is close to that when the air conditioner is not running, so no adjustment is required. If ΔL ≥ L1, the air conditioner noise is considered high, affecting indoor comfort, and adjustment is necessary.

[0043] At step S130, if it is determined that the noise emitted by the air conditioner should be adjusted, the operating frequency of the compressor is controlled based on the indoor noise level and the outlet water temperature, and the air conditioner exits the comfort mode. This reduces the noise emitted by the air conditioner, keeps the indoor noise level within a relatively low range, and prevents excessive noise from affecting the user experience.

[0044] In some embodiments, in step 130, the specific process of controlling the operating frequency of the compressor and the air conditioner exiting the comfort mode according to the indoor noise value and the outlet water temperature includes: steps S210 to S230.

[0045] In step S210, the difference between the outlet water temperature and the set outlet water temperature is recorded as a temperature difference value, and the magnitude relationship between the temperature difference value and the set temperature difference value is determined.

[0046] Step S220: If the temperature difference is greater than or equal to the set temperature difference, the operating frequency of the compressor is reduced; and after a preset time, the operating frequency of the compressor is controlled according to the temperature difference and the indoor noise level.

[0047] In some embodiments, in step S220, the specific process of controlling the operating frequency of the compressor according to the temperature difference and the indoor noise value includes: recording the difference between the indoor noise value and the set noise value as the noise difference, and judging the size relationship between the noise difference and the set noise difference; if the noise difference is less than the set noise difference, keeping the operating frequency of the compressor unchanged; if the noise difference is greater than or equal to the set noise difference, judging the size of the temperature difference; if the temperature difference is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; if the temperature difference is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein, the first range>the second range, and the first adjustment amount>the second adjustment amount.

[0048] In the process of controlling the operating frequency of the compressor, the operating frequency is first reduced by a first adjustment amount, and then if the noise difference value is less than the set noise difference value, it is considered that the indoor noise is effectively controlled and will not have a great impact on comfort, so the operating frequency of the compressor can be kept unchanged. If the noise difference value is greater than or equal to the set noise difference value after the operating frequency is first reduced, the operating frequency of the compressor needs to be further reduced to reduce the noise. A plurality of temperature difference value ranges can be set, and each temperature difference value range corresponds to an operating frequency adjustment amount. The greater the temperature difference value range, the greater the adjustment amount. Specifically, if the temperature difference value is in a larger first range, the water outlet temperature can still reach the requirement even if the operating frequency is reduced too much, so the operating frequency is reduced by a larger first adjustment amount. If the temperature difference value is in a smaller second range, the water outlet temperature may be lower than the required temperature if the operating frequency is reduced too much, causing discomfort in the room, so the operating frequency is reduced by a smaller second adjustment amount. After the operating frequency of the compressor is reduced for a period of time, the operating frequency of the compressor is controlled again according to the temperature difference value and the indoor noise value.

[0049] By determining the reduction amount of the operating frequency according to the size of the temperature difference value, it is ensured that the indoor temperature will not change greatly during the adjustment of the noise to affect the comfort, so that the user perceives less noise and improves the user experience.

[0050] In step S230, if the temperature difference value is less than the set temperature difference value, the air conditioner is controlled to exit the comfort mode.

[0051] When the air conditioner is running, the noise on the indoor side is too large, and one possible reason is that the sound insulation of the actual use environment of the air conditioner is poor, causing the noise transmitted to the indoor by the air conditioner to exceed the nominal noise value of the air conditioner. For example, the indoor decoration does not use sound insulation materials, the room is not equipped with a sound insulation layer, etc. The nominal noise value of the air conditioner is the maximum noise value that can be heard by a person.

[0052] Therefore, after determining the noise generated by the air conditioner, it is first determined whether the use environment of the air conditioner is poor according to the water outlet temperature. The set water outlet temperature corresponds to the set indoor environment temperature, and when the water outlet temperature reaches the set water outlet temperature, it is considered that the indoor environment temperature can reach the set indoor environment temperature. Specifically, the difference Δt between the water outlet temperature and the set water outlet temperature, if Δt≥t1, that is, the water outlet temperature is higher than the set water outlet temperature, at this time, reducing the operating frequency of the unit can still ensure that the indoor temperature reaches the target temperature, so the operating frequency of the compressor is reduced, which can be reduced by a first adjustment amount, and then the operating frequency is controlled; if Δt

[0053] At step S140, if it is determined that the noise emitted by the air conditioner is not to be adjusted, the operating frequency of the compressor is controlled according to the outlet water temperature. The air conditioner is protected from overloading and shutdown to ensure normal operation and improve stability.

[0054] In some embodiments, the specific process of controlling the operating frequency of the compressor according to the outlet water temperature in step S140 includes: recording the difference between the outlet water temperature and the set outlet water temperature as a temperature difference value, determining the size relationship between the temperature difference value and a set temperature difference value; if the temperature difference value is greater than or equal to the set temperature difference value, the operating frequency of the compressor is reduced; if the temperature difference value is less than the set temperature difference value, the operating frequency of the compressor is kept unchanged.

[0055] After the comfort mode is turned on, if it is determined that the noise emitted by the air conditioner is not to be adjusted, the unit is controlled only according to the outlet water temperature to ensure normal and stable operation. Specifically, the difference Δt between the outlet water temperature and the set outlet water temperature, if Δt≥set value t1, it is considered that the unit power is relatively large, there is a risk of power protection shutdown, and the unit load is too high, at this time, the operating frequency of the compressor is reduced to reduce the unit load to ensure normal operation of the unit, until Δt

[0056] In some embodiments, the air source heat pump system further has an electronic expansion valve and a fan. The control method further includes: when the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the external fan are also reduced.

[0057] In order to maintain the superheat degree of the unit, when the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the fan also need to be reduced to maintain the temperature in the room from changing too much. The electronic expansion valve is the first throttling valve 5 and the second throttling valve 6 in Figure 3 , and the external fan is the fan 4 in Figure 3 .

[0058] Figure 4 The flowchart of the comfort mode of the air conditioner of the present application is shown in Figure 4 , which includes:

[0059] Step 1: After the air conditioner is turned on, the unit is set to the comfort mode, and it is determined whether T 目标环温 -T 实际环温 < α. If T 目标环温 -T 实际环温 < α, the unit enters the comfort mode and step 2 is executed.

[0060] Step 2: It is determined whether T 出水温度 -T 目标出水温度The size relationship between c and y, and the size relationship between (βb-βa) and β* are determined. Y is a set temperature difference value, β* is a set noise difference value, βa is the indoor noise when the air conditioner is not turned on, and βb is the indoor noise at this time. If βb-βa<β*, step 3 is performed, and if βb-βa≥β*, step 4 is performed.

[0061] Step 3: Determine whether c≥y and c<0. If c≥y, reduce the frequency of the unit, reduce the opening of the electronic expansion valve, and reduce the air baffle until c<γ, and then perform step 2; if c<0, control the unit to increase the frequency; then perform step 2; if c<0 and c shows an increasing trend within Xmin time, directly perform step 2.

[0062] Step 4: Determine whether c≥y and c<0. If c<0, feedback to the technician that the noise limit of the air conditioner does not meet the user's use or the user's room has poor noise reduction effect, and exit the comfort mode; if c≥y, reduce the frequency of the unit by dHZ, and after Ymin time, if βb-βa≥β* is detected, and γ-e≤c<γ-e+1, and e<y, continue to reduce the frequency of the unit, and the reduction amount corresponds to the range of c, and the reduction amount is d-eHZ, γ-e is the lower limit of the range, and γ-e+1 is the upper limit of the range. Then perform step 2.

[0063] The technical scheme of the embodiment is adopted, the air conditioner has a comfort mode for adjusting the noise generated by the air conditioner running; when the air conditioner is running, if the air conditioner receives an instruction to start the comfort mode, the air conditioner starts the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise emitted by the air conditioner according to the indoor noise value; if it is determined to adjust the noise emitted by the air conditioner, the running frequency of the compressor and the running mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise emitted by the air conditioner, the running frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise emitted by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0064] According to the embodiment of the application, a control device of an air conditioner corresponding to a control method of the air conditioner is also provided. The air conditioner includes an air source heat pump system and a water side system; the air source heat pump system and the water side system exchange heat through a heat exchanger, which is specifically Figure 3 the second heat exchanger 7 in the air source heat pump system has a compressor.

[0065] The system structure of the air conditioner is as follows Figure 3As shown, the air source heat pump system comprises a compressor 1, a four-way valve 2, a first heat exchanger 3, a fan 4, a first throttling valve 5, a second throttling valve 6, a second heat exchanger 7, and a gas-liquid separator 8. In the air conditioning heating operation, the first heat exchanger 3 is an evaporator, and the high-temperature refrigerant exchanges heat with the water side system through the second heat exchanger 7, thereby transferring heat to the user side. The second heat exchanger 7 can be a plate heat exchanger. Specifically, the high-temperature and high-pressure refrigerant discharged from the compressor 1 exchanges heat with the cold water flowing into the second heat exchanger 7 in the second heat exchanger 7 after passing through the four-way valve 2, and then the hot water is supplied to the user side, and the cooled refrigerant passes through the second throttling valve 6, the first throttling valve 5, the first heat exchanger 3, the four-way valve 2, and the gas-liquid separator 8 in turn and returns to the compressor. In some embodiments, in the heating mode, the first throttling valve 5 throttles and depressurizes, and the second throttling valve 6 is in a fully open state; in the cooling mode, the first throttling valve 5 is fully open, and the second throttling valve 6 throttles and depressurizes.

[0066] The operation mode of the air conditioner comprises a comfort mode; the comfort mode is used to adjust the noise generated by the air conditioner during operation.

[0067] The air conditioner generates noise during operation, although the noise generated by the air conditioner will not be higher than the nominal noise value, but it may be near the nominal noise value for a long time, that is, the air conditioner generates a large noise for a long time. Since the unit frequency of the air conditioner during refrigeration will not be too high, the air conditioner will not generate a large noise; in the heating mode, a large noise will be generated due to the high operating frequency. Therefore, the air conditioner of the present scheme has a comfort mode, when the user considers that the noise generated by the air conditioner is too large and needs to be reduced, the user can turn on the comfort mode to reduce the noise generated by the air conditioner without affecting the indoor comfort, thereby improving the user comfort.

[0068] Referring to Figure 2 The structure schematic diagram of an embodiment of the device of the present application is shown. The control device of the air conditioner can comprise an acquisition unit 102 and a control unit 104.

[0069] The acquisition unit 102 is configured to, during operation of the air conditioner, if the air conditioner receives an instruction to turn on the comfort mode, acquire the indoor environment temperature, the outlet water temperature of the heat exchanger, and the indoor noise value. The specific functions and processes of the acquisition unit 102 are described in step S110.

[0070] The indoor unit of the air conditioner is provided with a noise collector which can collect the indoor noise, and can include the indoor noise when the air conditioner is stopped and the indoor noise when the air conditioner is running. The outlet water temperature of the heat exchanger is collected by the outlet water temperature temperature sensing bag 10.

[0071] The control unit 104 is configured to control the air conditioner to start the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determine whether to adjust the noise generated by the air conditioner according to the indoor noise value. The specific functions and processes of the control unit 104 are described in step S120.

[0072] After the air conditioner receives the instruction of starting the comfort mode sent by the user, the air conditioner does not directly enter the comfort mode, but first determines whether the indoor environment temperature reaches the set indoor environment temperature, so as to determine whether the air conditioner starts the comfort mode. The set indoor environment temperature is the target indoor temperature set by the user. When the indoor environment temperature has not reached the set indoor environment temperature, the air conditioner may be in the condition of just starting or just ending defrosting. In order to ensure the comfort of the indoor environment, it is necessary to increase the operation frequency as soon as possible to improve the heating capacity, so the air conditioner does not temporarily enter the comfort mode, and starts the comfort mode after the indoor environment temperature reaches the set indoor environment temperature.

[0073] Optionally, whether to start the comfort mode can be determined according to the difference between the indoor environment temperature and the set indoor environment temperature. Specifically, the difference between the indoor environment temperature and the set indoor environment temperature is ΔT, if ΔT≥set value T1, the air conditioner does not start the comfort mode, and the unit operates at a higher frequency to heat; if ΔT

[0074] In some embodiments, the control unit 104 determines whether to adjust the noise generated by the air conditioner according to the specific process of the indoor noise value, including: recording the difference between the indoor noise value and the set noise value as a noise difference value, determining the size relationship between the noise difference value and the set noise difference value; if the noise difference value is greater than or equal to the set noise difference value, it is determined to adjust the noise generated by the air conditioner; if the noise difference value is less than the set noise difference value, it is determined not to adjust the noise generated by the air conditioner.

[0075] The set noise value is the noise value in the room when the air conditioner stops running. For example, the indoor noise is collected when the air conditioner is not started, and a set containing multiple noise values is obtained. The noise values that suddenly increase are removed from the set, and the noise values that are relatively stable and have a long duration are retained. The average value of the set is taken as the set noise value.

[0076] After the air conditioner enters the comfort mode, it is firstly determined whether the indoor noise needs to be adjusted. The specific determination process is that the difference between the indoor noise value and the set noise value is ΔL, if ΔL < L1, it is considered that the noise generated by the air conditioner is relatively small, and the environmental noise at this time is relatively close to the environmental noise when the air conditioner is not running, so the noise generated by the air conditioner does not need to be adjusted; if ΔL ≥ L1, it is considered that the noise generated by the air conditioner is relatively large, which has an impact on the indoor comfort, so the noise generated by the air conditioner needs to be adjusted.

[0077] The control unit 104 is further configured to, if it is determined that the noise generated by the air conditioner needs to be adjusted, control the operating frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature. Thus, the noise generated by the air conditioner is reduced, the indoor noise is in a smaller range, and the user experience is avoided from being affected by excessive noise. For specific functions and processes of the control unit 104, see step S130.

[0078] In some embodiments, the specific process in which the control unit 104 controls the operating frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature includes:

[0079] The control unit 104 is further configured to record the difference between the outlet water temperature and the set outlet water temperature as a temperature difference value, and determine the size relationship between the temperature difference value and a set temperature difference value. For specific functions and processes of the control unit 104, see step S210.

[0080] The control unit 104 is further configured to, if the temperature difference value is greater than or equal to the set temperature difference value, reduce the operating frequency of the compressor; and after a preset time, control the operating frequency of the compressor according to the temperature difference value and the indoor noise value. For specific functions and processes of the control unit 104, see step S220.

[0081] In some embodiments, the specific process in which the control unit 104 controls the operating frequency of the compressor according to the temperature difference value and the indoor noise value includes: recording the difference between the indoor noise value and a set noise value as a noise difference value, determining the size relationship between the noise difference value and a set noise difference value; if the noise difference value is less than the set noise difference value, keeping the operating frequency of the compressor unchanged; if the noise difference value is greater than or equal to the set noise difference value, determining the size of the temperature difference value; if the temperature difference value is in a first range, reducing the operating frequency of the compressor by a first adjustment amount; if the temperature difference value is in a second range, reducing the operating frequency of the compressor by a second adjustment amount; wherein the first range > the second range, and the first adjustment amount > the second adjustment amount.

[0082] In the process of controlling the operating frequency of the compressor, the operating frequency is first reduced by a first adjustment amount, and then if the noise difference value is less than the set noise difference value, it is considered that the indoor noise is effectively controlled and will not have a great impact on comfort, so the operating frequency of the compressor can be kept unchanged. If the noise difference value is greater than or equal to the set noise difference value after the operating frequency is first reduced, the operating frequency of the compressor needs to be further reduced to reduce the noise. A plurality of temperature difference value ranges can be set, and each temperature difference value range corresponds to an operating frequency adjustment amount. The larger the temperature difference value range is, the larger the adjustment amount is. Specifically, if the temperature difference value is in a larger first range, the operating frequency can be reduced by a larger first adjustment amount to ensure that the outlet water temperature reaches the requirement even if the operating frequency is reduced too much. If the temperature difference value is in a smaller second range, the outlet water temperature may be lower than the required temperature if the operating frequency is reduced too much, which causes discomfort in the room. Therefore, the operating frequency is reduced by a smaller second adjustment amount.

[0083] By determining the reduction amount of the operating frequency according to the size of the temperature difference value, it is ensured that the indoor temperature will not change greatly during the adjustment of the noise to affect the comfort, so that the user perceives less noise and the user experience is improved.

[0084] The control unit 104 is specifically further configured to control the air conditioner to exit the comfort mode if the temperature difference value is less than a set temperature difference value. For specific functions and processing of the control unit 104, see step S230.

[0085] When the air conditioner is running, the noise on the indoor side is too large, and one possible reason is that the sound insulation of the actual use environment of the air conditioner is poor, which causes the noise transmitted to the indoor side by the air conditioner to exceed the nominal noise value of the air conditioner. For example, the indoor decoration does not use sound insulation materials, the room is not equipped with a sound insulation layer, etc. The nominal noise value of the air conditioner is the maximum noise value that can be heard by a person.

[0086] Therefore, after determining the noise generated by the air conditioner, it is first determined whether the use environment of the air conditioner is poor according to the outlet water temperature. The set outlet water temperature corresponds to the set indoor environment temperature. When the outlet water temperature reaches the set outlet water temperature, it is considered that the indoor environment temperature can reach the set indoor environment temperature. Specifically, the difference Δt between the outlet water temperature and the set outlet water temperature, if Δt≥t1, that is, the outlet water temperature is higher than the set outlet water temperature, the operating frequency of the unit can be reduced to ensure that the indoor temperature reaches the target temperature, so the operating frequency of the compressor can be reduced by a first adjustment amount, and then the operating frequency is controlled; if Δt

[0087] The control unit 104 is further configured to control the operating frequency of the compressor according to the outlet water temperature if it is determined that the noise emitted by the air conditioner is not to be adjusted. The control unit 104 avoids excessive load of the air conditioner to protect shutdown, ensures normal operation of the air conditioner, and improves the stability of the air conditioner. The specific functions and processes of the control unit 104 are described in step S140.

[0088] In some embodiments, the specific process of the control unit 104 for controlling the operating frequency of the compressor according to the outlet water temperature includes: recording the difference between the outlet water temperature and the set outlet water temperature as a temperature difference value, determining the size relationship between the temperature difference value and the set temperature difference value; if the temperature difference value is greater than or equal to the set temperature difference value, the operating frequency of the compressor is reduced; if the temperature difference value is less than the set temperature difference value, the operating frequency of the compressor remains unchanged.

[0089] After the comfort mode is turned on, if it is determined that the noise emitted by the air conditioner is not to be adjusted, the unit is controlled only according to the outlet water temperature to ensure normal and stable operation of the unit. Specifically, the difference Δt between the outlet water temperature and the set outlet water temperature, if Δt≥set value t1, it is considered that the unit power is relatively large, there is a risk of power protection shutdown, and the load of the unit is too high, at this time the operating frequency of the compressor is reduced to reduce the load of the unit to ensure normal operation of the unit, until Δt

[0090] In some embodiments, the air source heat pump system further has an electronic expansion valve and a fan. The control unit 104 is further configured to: when the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the external fan are also reduced.

[0091] In order to maintain the superheat degree of the unit, when the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the fan also need to be reduced, so as to maintain that the temperature in the room will not change greatly. The electronic expansion valve is the first throttling valve 5 and the second throttling valve 6 in Figure 3 , and the external fan is the fan 4 in Figure 3 .

[0092] Figure 4 The flowchart of the comfort mode of the air conditioner of the present application is shown in Figure 4 , which includes the following steps:

[0093] Step 1: After the air conditioner is turned on, the unit is set to the comfort mode, and it is determined whether T 目标环温 -T 实际环温 < α. If T 目标环温 -T 实际环温 < α, the unit enters the comfort mode and step 2 is performed.

[0094] Step 2: It is determined whether T 出水温度 -T目标出水温度 = the size relationship between c and γ, and the size relationship between (βb-βa) and β*. γ is a set temperature difference value, β* is a set noise difference value, βa is the indoor noise when the air conditioner is not turned on, and βb is the indoor noise at this time. If βb-βa<β*, step 3 is performed, and if βb-βa≥β*, step 4 is performed.

[0095] Step 3: Determine whether c≥γ and c<0. If c≥γ, reduce the frequency of the unit, reduce the opening of the electronic expansion valve, and reduce the air baffle until c<γ, and then perform step 2; if c<0, control the unit to increase the frequency; then perform step 2; if c<0 and c shows an increasing trend within Xmin time, directly perform step 2.

[0096] Step 4: Determine whether c≥γ and c<0. If c<0, feedback to the technician that the noise limit of the air conditioner does not meet the use of the user or the noise reduction effect of the user's room is poor, and exit the comfort mode; if c≥γ, reduce the frequency of the unit by dHZ, and after Ymin time, if βb-βa≥β* is detected, and γ-e≤c<γ-e+1, and e<y, continue to reduce the frequency of the unit, and the reduction amount corresponds to the range of c, and the reduction amount is d-eHZ, γ-e is the lower limit of the range, and γ-e+1 is the upper limit of the range. Then perform step 2.

[0097] Since the processing and functions realized by the device of the embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, details not described in the description of the embodiment can be referred to the related description in the foregoing embodiments, which will not be repeated here.

[0098] By adopting the technical solution of the present application, the air conditioner has a comfort mode for adjusting the noise generated by the air conditioner running; when the air conditioner is running, if the air conditioner receives an instruction to start the comfort mode, the air conditioner starts the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise emitted by the air conditioner according to the indoor noise value; if it is determined to adjust the noise emitted by the air conditioner, the running frequency of the compressor and the running mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise emitted by the air conditioner, the running frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise emitted by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0099] According to the embodiments of the present application, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner can include the control device of the air conditioner described above.

[0100] The processing and functions realized by the air conditioner of the embodiment are basically corresponding to the embodiments, principles and examples of the foregoing device, and thus the description of the embodiment is not described in detail herein.

[0101] The air conditioner has a comfort mode for adjusting the noise generated by the air conditioner, and when the air conditioner is running, if the air conditioner receives an instruction to turn on the comfort mode, the air conditioner turns on the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise generated by the air conditioner according to the indoor noise value; if it is determined to adjust the noise generated by the air conditioner, the operation frequency of the compressor and the operation mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise generated by the air conditioner, the operation frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise generated by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0102] According to the embodiment of the application, a storage medium corresponding to the control method of the air conditioner is also provided, and the storage medium comprises a stored program, wherein when the program is executed, the device where the storage medium is located performs the control method of the air conditioner.

[0103] The processing and functions realized by the storage medium of the embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, and thus the description of the embodiment is not described in detail herein.

[0104] The air conditioner has a comfort mode for adjusting the noise generated by the air conditioner, and when the air conditioner is running, if the air conditioner receives an instruction to turn on the comfort mode, the air conditioner turns on the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise generated by the air conditioner according to the indoor noise value; if it is determined to adjust the noise generated by the air conditioner, the operation frequency of the compressor and the operation mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise generated by the air conditioner, the operation frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise generated by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0105] According to the embodiment of the application, a computer program product corresponding to the control method of the air conditioner is also provided, and the computer program product comprises a computer program, and the computer program product is processed to realize the steps of the control method of the air conditioner.

[0106] Since the processing and functions realized by the computer program product of the embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, the description of the embodiment will not be elaborated on the unexplained parts, and the related description in the foregoing embodiments can be referred to, which will not be repeated here.

[0107] By using the technical solution of the present application, the air conditioner has a comfort mode for adjusting the noise generated by the operation of the air conditioner; when the air conditioner receives an instruction to start the comfort mode, the air conditioner starts the comfort mode after the indoor environment temperature reaches the set indoor environment temperature, and determines whether to adjust the noise emitted by the air conditioner according to the indoor noise value; if it is determined to adjust the noise emitted by the air conditioner, the operation frequency of the compressor and the operation mode of the air conditioner are controlled according to the indoor noise value and the outlet water temperature; if it is determined not to adjust the noise emitted by the air conditioner, the operation frequency of the compressor is controlled according to the outlet water temperature. Thus, by adjusting the noise emitted by the air conditioner according to the indoor noise value and the outlet water temperature of the air conditioner, the noise received indoors is reduced without affecting the indoor temperature, and the user experience is improved.

[0108] In summary, those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0109] The above only describes the embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner comprises an air source heat pump system and a water side system; the air source heat pump system and the water side system exchange heat through a heat exchanger; the air source heat pump system has a compressor; the operation mode of the air conditioner comprises a comfort mode; the comfort mode is used for adjusting noise generated by the air conditioner during operation; The method comprises: During operation of the air conditioner, if the air conditioner receives an instruction to start the comfort mode, the indoor environment temperature, the outlet water temperature of the heat exchanger and the indoor noise value are obtained; After the indoor environment temperature reaches the set indoor environment temperature, the air conditioner is controlled to start the comfort mode, and whether to adjust the noise emitted by the air conditioner is determined according to the indoor noise value; If it is determined to adjust the noise emitted by the air conditioner, the operation frequency of the compressor and the air conditioner are controlled to exit the comfort mode according to the indoor noise value and the outlet water temperature; If it is determined not to adjust the noise emitted by the air conditioner, the operation frequency of the compressor is controlled according to the outlet water temperature.

2. The control method of the air conditioner according to claim 1, characterized by, Determining whether to adjust the noise emitted by the air conditioner according to the indoor noise value comprises: The difference between the indoor noise value and the set noise value is recorded as a noise difference value, and the size relationship between the noise difference value and the set noise difference value is determined; If the noise difference value is greater than or equal to the set noise difference value, it is determined to adjust the noise emitted by the air conditioner; If the noise difference value is less than the set noise difference value, it is determined not to adjust the noise emitted by the air conditioner.

3. The control method of the air conditioner according to claim 1 or 2, characterized by, Controlling the operation frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature comprises: The difference between the outlet water temperature and the set outlet water temperature is recorded as a temperature difference value, and the size relationship between the temperature difference value and the set temperature difference value is determined; If the temperature difference value is greater than or equal to the set temperature difference value, the operation frequency of the compressor is reduced; after a preset time, the operation frequency of the compressor is controlled according to the temperature difference value and the indoor noise value; If the temperature difference value is less than the set temperature difference value, the air conditioner is controlled to exit the comfort mode.

4. The control method of the air conditioner according to claim 3, characterized by, Controlling the operation frequency of the compressor according to the temperature difference value and the indoor noise value comprises: The difference between the indoor noise value and the set noise value is recorded as a noise difference value, and the size relationship between the noise difference value and the set noise difference value is determined; If the noise difference value is less than the set noise difference value, the operation frequency of the compressor is kept unchanged; If the noise difference value is greater than or equal to the set noise difference value, the size of the temperature difference value is determined; If the temperature difference value is in a first range, the operation frequency of the compressor is reduced by a first adjustment amount; If the temperature difference value is in a second range, the operation frequency of the compressor is reduced by a second adjustment amount; Wherein, the first range > the second range, and the first adjustment amount > the second adjustment amount.

5. The control method of the air conditioner according to claim 1, characterized by, Controlling the operation frequency of the compressor according to the outlet water temperature comprises: The difference between the outlet water temperature and the set outlet water temperature is recorded as a temperature difference value, and the size relationship between the temperature difference value and the set temperature difference value is determined; If the temperature difference value is greater than or equal to the set temperature difference value, the operation frequency of the compressor is reduced; If the temperature difference value is less than a set temperature difference value, the operating frequency of the compressor is kept unchanged.

6. The control method of the air conditioner according to claim 4 or 5, characterized by, The air source heat pump system further has an electronic expansion valve and an external fan; The method further comprises: When the operating frequency of the compressor is reduced, the opening degree of the electronic expansion valve and the rotating speed of the external fan are also reduced.

7. A control device of an air conditioner, characterized by comprising: The air conditioner comprises an air source heat pump system and a water side system; the air source heat pump system and the water side system exchange heat through a heat exchanger; the air source heat pump system has a compressor; the operating mode of the air conditioner comprises a comfort mode; the comfort mode is used to adjust the noise generated when the air conditioner operates; The device comprises: An acquisition unit is configured to acquire an indoor environment temperature, an outlet water temperature of the heat exchanger and an indoor noise value if the air conditioner receives an instruction to start the comfort mode during operation of the air conditioner; A control unit is configured to control the air conditioner to start the comfort mode after the indoor environment temperature reaches a set indoor environment temperature, and determine whether to adjust the noise emitted by the air conditioner according to the indoor noise value; The control unit is further configured to control the operating frequency of the compressor and the air conditioner to exit the comfort mode according to the indoor noise value and the outlet water temperature if it is determined to adjust the noise emitted by the air conditioner; The control unit is further configured to control the operating frequency of the compressor according to the outlet water temperature if it is determined not to adjust the noise emitted by the air conditioner.

8. An air conditioner characterized by comprising: Comprise: The control device of the air conditioner according to claim 7.

9. A storage medium, characterized by The storage medium comprises a stored program, wherein the device where the storage medium is located executes the control method of the air conditioner according to any one of claims 1 to 6 when the program runs.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by a processor to implement the steps of the method according to any one of claims 1 to 6.

Images