A heat pump air conditioner and its intelligent control method for comfortable operation

Abstract

The present invention relates to a heat pump air conditioner and an intelligent control method for its comfortable operation. When the heat pump air conditioner detects a jump change in the body surface temperature of indoor personnel, it indicates that the amount of clothing worn by the indoor personnel has been adjusted, and there is a possibility that the user's perceived temperature is too high or too low. The air conditioner can adjust the output of the cooling capacity or heating capacity of the air conditioner according to this signal information to improve the comfort of indoor personnel. When the air conditioner detects that the body surface temperature of indoor personnel is too low, it indicates that the indoor environmental temperature is too low, and the indoor environmental temperature needs to be raised to ensure the comfort of indoor personnel. When the air conditioner detects that the body surface temperature of indoor personnel is too high, it indicates that the indoor environmental temperature is too high, and the indoor environmental temperature needs to be lowered to ensure the comfort of indoor personnel. Within a certain period of time after adjusting the output of the cooling capacity or heating capacity, the adjustment of the output of the cooling capacity or heating capacity is no longer carried out to avoid the occurrence of fluctuations in the indoor environmental temperature caused by frequent adjustments.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pumps, and in particular to a heat pump air conditioner and an intelligent control method for its comfortable operation. Background Art

[0002] Air conditioners have been widely used in people's work and life. Some existing heat pump air conditioners have an automatic operation mode, which can automatically adjust the cooling capacity or heating capacity output of the air conditioner according to the current indoor environmental temperature, so that the indoor environmental temperature is maintained within a relatively reasonable range.

[0003] During the use of the air conditioner, the user of the air conditioner may choose to increase or decrease the amount of clothing worn according to the feeling of their own body temperature, reducing the discomfort caused by too high or too low body temperature.

[0004] Existing air conditioners cannot dynamically adjust the output of the cooling capacity or heating capacity of the air conditioner according to the change in the amount of clothing worn by the user during the use of the air conditioner, affecting the comfort during the use of the air conditioner. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a heat pump air conditioner and an intelligent control method for its comfortable operation, which can solve the problem that after the indoor personnel add or reduce the amount of clothing worn, the air conditioner cannot adjust the output of the cooling capacity or heating capacity in real time, thus affecting the comfort experience of the air conditioner user.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: An intelligent control method for the comfortable operation of a heat pump air conditioner, which is applied to a heat pump air conditioner. The heat pump air conditioner includes a controller, an indoor unit and an outdoor unit; it is characterized in that:

[0007] The indoor unit includes an indoor heat exchanger, an indoor environmental temperature sensor, a human body surface temperature sensor, an indoor fan, an indoor control mechanism and an air supply direction adjustment mechanism;

[0008] The outdoor unit includes a compressor, a four-way reversing valve, an outdoor heat exchanger, an outdoor fan, a throttling mechanism for controlling the flow rate and an outdoor control mechanism;

[0009] The indoor heat exchanger and the outdoor heat exchanger form a circuit through a first refrigerant connection pipe and a second refrigerant connection pipe. The compressor and the throttling mechanism are arranged in the above circuit. The four-way reversing valve is used to switch the valve ports so that the air conditioner has a cooling mode and a heating mode; the controller includes an indoor control mechanism and an outdoor control mechanism; the control method steps are as follows:

[0010] S1: The heat pump air conditioner is turned on. The heat pump air conditioner receives the operation parameter information set by the user and operates. The controller determines whether the set operation mode by the user is a cooling or heating operation mode. If so, the air conditioner operates normally. The controller counts the operation time t of the air conditioner and reads the body surface temperature Tb of the human body.

[0011] S2: The controller compares the counted operation time t with the preset threshold value a. If t≥a, it reads the body surface temperature Tb’ under the current state, calculates △Tb, △Tb = Tb’ - Tb, and sets t = 0.

[0012] S3: The controller determines the magnitude relationship between the calculated △Tb and the preset threshold value b. If △Tb≥b, the controller continues to determine whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t’ with the preset threshold value e. If t’≥e, it sets t’ = 0, adjusts the output of the cooling capacity or heating capacity of the air conditioner, and the controller continues to count the operation time t’ of the air conditioner, and the air conditioner operates normally.

[0013] If △Tb<b, the controller determines the magnitude relationship between the obtained Tb' and the preset threshold values c and d. If Tb’≤c or Tb’≥d, the controller continues to determine whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t’ with the preset threshold value e. If t’≥e, it sets t’ = 0, adjusts the output of the cooling capacity or heating capacity of the air conditioner, and the controller continues to count the operation time t’ of the air conditioner, and the air conditioner operates normally. If d>Tb’>c, it sets E = 0 and t’ = 0, and the air conditioner operates normally.

[0014] S4: When △Tb≥b or d>Tb’>c, if E = 0, the controller sets E = 1 and adjusts the output of the cooling capacity or heating capacity of the air conditioner.

[0015] Further, in S1, if the set operation mode by the user is not a cooling or heating operation mode, the control program ends.

[0016] Further, in S1, before the controller counts the operation time t of the air conditioner and reads the body surface temperature Tb of the human body, if the user changes the set parameters of the air conditioner, it is necessary to return to re - judge the operation mode.

[0017] Further, in S2, if t<a, the air conditioner operates normally.

[0018] Further, in S3, if t’<e, it counts the operation time t’ of the air conditioner, and the air conditioner operates normally.

[0019] Further, the indoor control mechanism includes:

[0020] A user information receiving module, adapted to receive the air conditioner operation status setting information set by the user;

[0021] A first operation information acquisition module, adapted to acquire the operation information of each component in the indoor unit and the information received by the user information receiving module;

[0022] A first operation status determination module, adapted to determine whether the air conditioner needs to perform energy-saving operation based on the information received by the air conditioner;

[0023] A first information sending module, adapted to send the air conditioner operation information in the indoor control mechanism to the outdoor control mechanism;

[0024] A first information receiving module, adapted to receive the outdoor unit operation information sent by the second information sending module in the outdoor control mechanism;

[0025] An operation status information storage module, adapted to store the air conditioner operation status information and the operation parameter information set by the user received by the user information receiving module;

[0026] A time statistics module, adapted to statistics the time experienced by various operation statuses of the air conditioner;

[0027] A body surface temperature detection and recording module, adapted to detect and record the body surface temperature of the people in the indoor environment space.

[0028] Further, the outdoor control mechanism includes:

[0029] A second operation information acquisition module, adapted to acquire the operation information of each component in the outdoor unit;

[0030] A second operation status determination module, adapted to control the outdoor unit of the air conditioner to perform energy-saving operation or normal operation based on the information collected by the second operation information acquisition module and the second information receiving module;

[0031] A second information receiving module, which can receive the indoor unit operation information sent by the information sending module in the indoor control mechanism;

[0032] A second information sending module, which can send the air conditioner operation information in the outdoor control mechanism to the indoor control mechanism.

[0033] A heat pump air conditioner, applying the comfort operation intelligent control method of a heat pump air conditioner described in any one of the above.

[0034] With the above technical solution of the present invention, when the heat pump air conditioner detects a discontinuous change in the body surface temperature of the indoor person, it indicates that the number of clothes worn by the indoor person has been adjusted, and there is a possibility that the user's perceived temperature is too high or too low. The air conditioner can adjust the output of the cooling capacity or heating capacity of the air conditioner according to this signal information to improve the comfort of the indoor person. Further: when the air conditioner detects that the body surface temperature of the indoor person is too low, it indicates that the indoor environmental temperature is too low, and the indoor environmental temperature needs to be raised to ensure the comfort of the indoor person; when the air conditioner detects that the body surface temperature of the indoor person is too high, it indicates that the indoor environmental temperature is too high, and the indoor environmental temperature needs to be lowered to ensure the comfort of the indoor person; within a period of time after adjusting the output of the cooling capacity or heating capacity, the adjustment of the output of the cooling capacity or heating capacity is no longer performed to avoid the occurrence of indoor environmental temperature fluctuations caused by frequent adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the heat pump air conditioner involved in the present invention.

[0036] Figure 2 It is a schematic structural diagram of the indoor control mechanism and outdoor control mechanism of the heat pump air conditioner involved in the present invention.

[0037] Figure 3 It is a schematic control logic diagram of a comfort operation intelligent control method.

[0038] Figure 4 It is a schematic table adjustment diagram of the comfort operation intelligent control method of this case.

[0039] Figure 5 It is a schematic table adjustment diagram when the number of clothes is adjusted again in the comfort operation intelligent control method of this case. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0045] As Figures 1-2 shown, a heat pump air conditioner includes a controller, an indoor unit 10 and an outdoor unit 20;

[0046] The indoor unit 10 includes an indoor heat exchanger 101, an indoor ambient temperature sensor 102, a human body surface temperature sensor 103, an indoor fan 104, an indoor control mechanism 105 and an air supply direction adjustment mechanism;

[0047] The outdoor unit 20 includes a compressor 201, a four-way reversing valve 202, an outdoor heat exchanger 203, an outdoor fan 204, a throttling mechanism 205 for controlling the flow rate, and an outdoor control mechanism 206;

[0048] The indoor heat exchanger 101 and the outdoor heat exchanger 203 form a circuit through a first refrigerant connection pipe 30 and a second refrigerant connection pipe 40. The compressor 201 and the throttling mechanism 205 are arranged in the above-mentioned circuit. The four-way reversing valve 202 is used to switch the valve ports so that the air conditioner has a refrigeration mode and a heating mode; The controller includes an indoor control mechanism 105 and an outdoor control mechanism 206;

[0049] The indoor control mechanism 105 includes:

[0050] A user information receiving module 1051, adapted to receive the air conditioner operation state setting information set by the user;

[0051] A first operation information acquisition module 1052, adapted to acquire the operation information of each component in the indoor unit 10 and the information received by the user information receiving module 1051;

[0052] A first operation state judgment module 1053, adapted to judge whether the air conditioner needs to perform energy-saving operation according to the information received by the air conditioner;

[0053] A first information sending module 1054, adapted to send the air conditioner operation information in the indoor control mechanism 105 to the outdoor control mechanism 206;

[0054] A first information receiving module 1055, adapted to receive the outdoor unit operation information sent by the second information sending module 2064 in the outdoor control mechanism 206;

[0055] An operation state information storage module 1056, adapted to store the air conditioner operation state information and the operation parameter information set by the user received by the user information receiving module 1051;

[0056] A time statistics module 1057, adapted to count the time experienced by various operation states of the air conditioner;

[0057] A body surface temperature detection and recording module 1058, adapted to detect and record the body surface temperature of the people in the indoor environment space.

[0058] The outdoor control mechanism 206 includes:

[0059] A second operation information acquisition module 2061, adapted to acquire the operation information of each component in the outdoor unit 20;

[0060] The second operating state determination module 2062 is adapted to control the outdoor unit of the air conditioner to perform energy-saving operation or normal operation according to the information collected by the second operation information acquisition module 2061 and the second information receiving module 2063;

[0061] The second information receiving module 2063 can receive the indoor unit operation information sent by the information sending module 1054 in the indoor control mechanism 105;

[0062] The second information sending module 2064 can send the air conditioner operation information in the outdoor control mechanism 206 to the indoor control mechanism 105.

[0063] As Figure 3 shown, the steps of an intelligent control method for the comfort operation of a heat pump air conditioner are as follows:

[0064] S1: The heat pump air conditioner is turned on. The heat pump air conditioner receives the operation parameter information set by the user and operates. The controller determines whether the set operation mode by the user is a cooling or heating operation mode. If so, the air conditioner operates normally. The controller counts the operation time t of the air conditioner and reads the body surface temperature Tb of the human body;

[0065] S2: The controller compares the counted operation time t with the preset threshold value a. If t≥a, it reads the body surface temperature Tb' under the current state, calculates △Tb, △Tb = Tb' - Tb, and sets t = 0;

[0066] S3: The controller determines the magnitude of the calculated △Tb compared with the preset threshold value b. If △Tb≥b, the controller continues to determine whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t' with the preset threshold value e. If t'≥e, it sets t' = 0, adjusts the output of the cooling capacity or heating capacity of the air conditioner, the controller continues to count the operation time t' of the air conditioner, and the air conditioner operates normally;

[0067] If △Tb<b, the controller determines the magnitude of the obtained Tb' compared with the preset threshold values c and d. If Tb’≤c or Tb’≥d, the controller continues to determine whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t' with the preset threshold value e. If t'≥e, it sets t' = 0, adjusts the output of the cooling capacity or heating capacity of the air conditioner, the controller continues to count the operation time t' of the air conditioner, and the air conditioner operates normally; If d>Tb’>c, it sets E = 0, t' = 0, and the air conditioner operates normally;

[0068] S4: When △Tb≥b or d>Tb’>c, if E = 0, the controller sets E = 1 and adjusts the output of the cooling capacity or heating capacity of the air conditioner.

[0069] Further, in S1, if the operating mode set by the user is not the cooling or heating operating mode, the control program ends.

[0070] Further, in S1, before the controller counts the operating time t of the air conditioner and reads the body surface temperature Tb of the human body, if the user changes the set parameters of the air conditioner, it is necessary to return to re-judge the operating mode.

[0071] Further, in S2, if t < a, the air conditioner operates normally.

[0072] Further, in S3, if t' < e, count the operating time t' of the air conditioner, and the air conditioner operates normally.

[0073] In this embodiment, as Figure 3 shown, the specific steps of an intelligent control method for the comfort operation of a heat pump air conditioner are as follows:

[0074] Step S0: In step S0, start the program and then enter step S1;

[0075] Step S1: In step S1, the air conditioner receives the operating parameter information set by the user and then enters step S2;

[0076] Step S2: In step S2, judge whether the operating mode set by the user is the cooling or heating operating mode. If the operating mode is cooling or heating, enter step S3; otherwise, enter step S18;

[0077] Step S3: In step S3, the air conditioner operates normally and then enters step S4;

[0078] Step S4: In step S4, count the operating time t of the air conditioner and then enter step S5;

[0079] Step S5: In step S5, read the body surface temperature Tb of the human body and then enter step S6;

[0080] Step S6: In step S6, judge whether the user has changed the set parameters of the air conditioner. If the user changes the set parameters, enter step S1; otherwise, enter step S7;

[0081] Step S7: In step S7, compare the counted operating time t with the preset threshold value a. If t ≥ a, enter step S8; otherwise, enter step S3;

[0082] Step S8: In step S8, read Tb', calculate △Tb, △Tb = Tb' - Tb, let t = 0, and then enter step S9;

[0083] Step S9: In step S9, judge the magnitude relationship between the calculated ΔTb and the preset threshold b. If ΔTb ≥ b, then proceed to step S11; otherwise, proceed to step S10.

[0084] Step S10: In step S10, judge the magnitude relationship between the obtained Tb' and the preset thresholds c and d. If Tb’ ≤ c or Tb’ ≥ d, then proceed to step S11; otherwise, proceed to step S13.

[0085] Step S11: In step S11, judge whether E is equal to 1. If E = 1, then proceed to step S14; otherwise, proceed to step S12.

[0086] Step S12: In step S12, set E = 1, and then proceed to step S16.

[0087] Step S13: In step S13, set E = 0 and t’ = 0, and then proceed to step S3.

[0088] Step S14: In step S14, compare the statistically recorded operating time t’ with the preset threshold e. If t’ ≥ e, then proceed to step S15; otherwise, proceed to step S17.

[0089] Step S15: In step S15, set t’ = 0, and then proceed to step S16.

[0090] Step S16: In step S16, adjust the output of the air conditioner's cooling capacity or heating capacity (adjust according to the schemes in Table 1 and Table 2), and then proceed to step S17.

[0091] Step S17: In step S17, record the operating time t’ of the air conditioner, and then proceed to step S3.

[0092] Step S18: In step S18, end the program.

[0093] Symbol Explanation:

[0094] Tb, Tb’: Body surface temperature;

[0095] ΔTb: Change in body surface temperature;

[0096] t: Time statistical parameter at the initial stage of startup;

[0097] t’: Time statistical parameter during operation;

[0098] a: Preset time threshold, for example, a is preset to 1 min;

[0099] b: Preset temperature difference threshold, for example, b is preset to 2 °C;

[0100] c: Preset temperature threshold, for example, c is preset to 35 °C;

[0101] d: The preset temperature threshold, for example, d is preset to 38 °C;

[0102] e: The preset time threshold, for example, e is preset to 10 min;

[0103] E: The output capacity adjustment flag. When E = 0, it is marked that the output capacity has not been adjusted recently. When E = 1, it is marked that the output capacity has been adjusted recently.

[0104] Such as Figure 4 shown:

[0105] During the refrigeration operation process, if the body surface temperature of a person suddenly rises, it indicates that the indoor person has taken the action of reducing clothing at this time. The air conditioner takes actions according to the following conditions:

[0106] If the difference between the indoor environmental temperature and the temperature set by the air conditioner user is large at this time, it indicates that the cooling capacity output of the air conditioner is too small or the temperature reduction speed is too slow at this time, and the comfort of the person is not guaranteed. At this time, increase the output of the cooling capacity of the air conditioner;

[0107] If the difference between the indoor environmental temperature and the temperature set by the air conditioner user is small at this time, it indicates that the operating temperature of the air conditioner set by the user is too high at this time. At this time, lower the set temperature of the air conditioner.

[0108] During the refrigeration operation process, if the body surface temperature of a person suddenly drops, it indicates that the indoor person has taken the action of adding clothing at this time. The air conditioner takes actions according to the following conditions:

[0109] If the difference between the indoor environmental temperature and the temperature set by the air conditioner user is large at this time, it indicates that the cooling capacity output of the air conditioner is too large or the temperature reduction speed is too fast at this time, and the comfort of the person is not guaranteed. At this time, reduce the output of the cooling capacity of the air conditioner;

[0110] If the difference between the indoor environmental temperature and the temperature set by the air conditioner user is small at this time, it indicates that the operating temperature of the air conditioner set by the user is too low at this time. At this time, raise the set temperature of the air conditioner.

[0111] During the heating operation process, if the body surface temperature of a person suddenly rises, it indicates that the indoor person has taken the action of reducing clothing at this time. The air conditioner takes actions according to the following conditions:

[0112] If the difference between the indoor environmental temperature and the temperature set by the air conditioner user is large at this time, it indicates that the heating capacity output of the air conditioner is too large or the temperature increase speed is too fast at this time, and the comfort of the person is not guaranteed. At this time, reduce the output of the heating capacity of the air conditioner;

[0113] If the temperature difference between the indoor environmental temperature and the temperature set by the air conditioner user is small at this time, it indicates that the operating temperature of the air conditioner set by the user is too high at this time, and the set temperature of the air conditioner is reduced at this time.

[0114] During the heating operation process, if the body surface temperature of a person suddenly decreases, it indicates that the indoor person has taken the action of adding clothes at this time, and the air conditioner operates according to the following conditions:

[0115] If the temperature difference between the indoor environmental temperature and the temperature set by the air conditioner user is large at this time, it indicates that the heating output of the air conditioner is too small or the temperature rising speed is too slow at this time, and the comfort of the person is not guaranteed. At this time, increase the heating output of the air conditioner;

[0116] If the temperature difference between the indoor environmental temperature and the temperature set by the air conditioner user is small at this time, it indicates that the operating temperature of the air conditioner set by the user is too low at this time, and the set temperature of the air conditioner is increased at this time.

[0117] As Figure 5 shown,

[0118] During the operation of the air conditioner, if the air conditioner makes corresponding actions according to the first adjustment of the clothing wearing quantity by the air conditioner user and then detects that the user adjusts the clothing wearing quantity again, the air conditioner makes the following adjustments:

[0119] During the cooling operation process, when the second clothing adjustment action of the indoor person is to reduce clothes, at this time, increase the cooling output of the air conditioner and lower the set temperature;

[0120] During the cooling operation process, when the second clothing adjustment action of the indoor person is to add clothes, at this time, reduce the cooling output of the air conditioner and increase the set temperature;

[0121] During the heating operation process, when the second clothing adjustment action of the indoor person is to reduce clothes, at this time, reduce the heating output of the air conditioner and lower the set temperature;

[0122] During the heating operation process, when the second clothing adjustment action of the indoor person is to add clothes, at this time, increase the heating output of the air conditioner and increase the set temperature.

[0123] In this specific embodiment, in view of the problem that the existing air conditioner cannot dynamically adjust the output of the cooling capacity or heating capacity of the air conditioner according to the change in the number of clothes worn by the user during the operation of the air conditioner, which affects the comfort during the use of the air conditioner. Through the above control solution, when the heat pump air conditioner detects a jump change in the body surface temperature of the indoor person, it indicates that the number of clothes worn by the indoor person has been adjusted, and there is a possibility that the body feeling temperature of the user is too high or too low. The air conditioner can adjust the output of the cooling capacity or heating capacity of the air conditioner according to this signal information to improve the comfort of the indoor person; further: when the air conditioner detects that the body surface temperature of the indoor person is too low, it indicates that the indoor environmental temperature is too low and the indoor environmental temperature needs to be raised to ensure the comfort of the indoor person; when the air conditioner detects that the body surface temperature of the indoor person is too high, it indicates that the indoor environmental temperature is too high and the indoor environmental temperature needs to be lowered to ensure the comfort of the indoor person; within a period of time after adjusting the output of the cooling capacity or heating capacity, the adjustment of the output of the cooling capacity or heating capacity will not be carried out again to avoid the occurrence of the indoor environmental temperature fluctuation phenomenon caused by frequent adjustment.

[0124] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0125] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. An intelligent control method for comfort operation of a heat pump air conditioner, which is applied to a heat pump air conditioner (1). The heat pump air conditioner (1) includes a controller, an indoor unit (10) and an outdoor unit (20); it is characterized in that: The indoor unit (10) includes an indoor heat exchanger (101), an indoor ambient temperature sensor (102), a human body surface temperature sensor (103), an indoor fan (104), an indoor control mechanism (105) and an air supply direction adjustment mechanism; The outdoor unit (20) includes a compressor (201), a four-way reversing valve (202), an outdoor heat exchanger (203), an outdoor fan (204), a throttling mechanism (205) for controlling the flow rate and an outdoor control mechanism (206); The indoor heat exchanger (101) and the outdoor heat exchanger (203) form a loop through a first refrigerant connection pipe (30) and a second refrigerant connection pipe (40). The compressor (201) and the throttling mechanism (205) are arranged in the above loop. The four-way reversing valve (202) is used to switch the valve ports so that the air conditioner has a refrigeration mode and a heating mode; the controller includes an indoor control mechanism (105) and an outdoor control mechanism (206); the control method steps are as follows: S1: When the heat pump air conditioner is turned on, the heat pump air conditioner receives the operation parameter information set by the user and operates. The controller judges whether the operation mode set by the user is a refrigeration or heating operation mode. If so, the air conditioner operates normally. The controller counts the operation time t of the air conditioner and reads the human body surface temperature Tb; S2: The controller compares the counted operation time t with the preset threshold a. If t≥a, reads the human body surface temperature Tb’ in the current state, calculates △Tb, △Tb = Tb’ - Tb, and sets t = 0; S3: The controller judges the size of the calculated △Tb and the preset threshold b. If △Tb≥b, the controller continues to judge whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t’ with the preset threshold e. If t’≥e, sets t’ = 0, adjusts the output of the refrigerating capacity or heating capacity of the air conditioner, the controller continues to count the operation time t’ of the air conditioner, and the air conditioner operates normally; If △Tb<b, the controller judges the size of the obtained Tb' and the preset thresholds c and d. If Tb’≤c or Tb’≥d, the controller continues to judge whether E is equal to 1. If E = 1, the controller continues to compare the counted operation time t’ with the preset threshold e. If t’≥e, sets t’ = 0, adjusts the output of the refrigerating capacity or heating capacity of the air conditioner, the controller continues to count the operation time t’ of the air conditioner, and the air conditioner operates normally; If d>Tb’>c, sets E = 0 and t’ = 0, and the air conditioner operates normally; S4: When △Tb≥b or d>Tb’>c, if E = 0, the controller sets E = 1 and adjusts the output of the refrigerating capacity or heating capacity of the air conditioner.

2. The intelligent control method for comfortable operation of a heat pump air conditioner according to claim 1, characterized in that: In S1, if the operation mode set by the user is not a refrigeration or heating operation mode, the control program ends.

3. The intelligent control method for the comfort operation of a heat pump air conditioner according to claim 1, characterized in that: In S1, before the controller counts the operation time t of the air conditioner and reads the body surface temperature Tb of the user, if the user changes the set parameters of the air conditioner, it is necessary to return to re-judge the operation mode.

4. The intelligent control method for the comfort operation of a heat pump air conditioner according to claim 1, characterized in that: In S2, if t < a, the air conditioner operates normally.

5. The intelligent control method for comfortable operation of a heat pump air conditioner according to claim 1, characterized in that: In S3, if t' < e, count the operation time t' of the air conditioner, and the air conditioner operates normally.

6. The intelligent control method for comfortable operation of a heat pump air conditioner according to claim 1, characterized in that: The indoor control mechanism (105) includes: A user information receiving module (1051), adapted to receive the air conditioner operation state setting information set by the user; A first operation information acquisition module (1052), adapted to acquire the operation information of each component in the indoor unit (10) and the information received by the user information receiving module (1051); A first operation state judgment module (1053), adapted to judge whether the air conditioner needs to perform energy-saving operation according to the information received by the air conditioner; A first information sending module (1054), adapted to send the air conditioner operation information in the indoor control mechanism (105) to the outdoor control mechanism (206); A first information receiving module (1055), adapted to receive the outdoor unit operation information sent by the second information sending module (2064) in the outdoor control mechanism (206); An operation state information storage module (1056), adapted to store the air conditioner operation state information and the operation parameter information set by the user received by the user information receiving module (1051); A time counting module (1057), adapted to count the time experienced by various operation states of the air conditioner; A body surface temperature detection and recording module (1058), adapted to detect and record the body surface temperature of the people in the indoor environment space.

7. The intelligent control method for comfortable operation of a heat pump air conditioner according to claim 6, characterized in that: The outdoor control mechanism (206) includes: A second operation information acquisition module (2061), adapted to acquire the operation information of each component in the outdoor unit (20); A second operation state judgment module (2062), adapted to control the outdoor unit of the air conditioner to perform energy-saving operation or normal operation according to the information collected by the second operation information acquisition module (2061) and the second information receiving module (2063); A second information receiving module (2063), which can receive the indoor unit operation information sent by the information sending module (1054) in the indoor control mechanism (105); A second information sending module (2064), which can send the air conditioner operation information in the outdoor control mechanism (206) to the indoor control mechanism (105).

8. A heat pump air conditioner, characterized in that: An intelligent control method for comfortable operation of a heat pump air conditioner applied to any one of the above claims 1 to 7.

Images