Cold air prevention control method and device of air conditioner and air conditioner

Abstract

The invention relates to the technical field of air conditioners, and provides an air conditioner cold air prevention control method and device and an air conditioner. The air conditioner comprises a refrigerant circulation loop formed by a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger; an electromagnetic valve is arranged on the heat recovery loop; an electronic expansion valve is arranged on the heat release loop; the human body detection device is used for detecting whether a person exists in a target room and detecting the position and distance of the person relative to an air outlet of the indoor unit; the air guide assembly is arranged at an air outlet of the indoor unit; the controller is electrically connected with the air guide assembly, the human body detection device, the electromagnetic valve, the electronic expansion valve and the compressor. When the air conditioner operates in the low-temperature heating mode, the heat release loop is controlled to operate, the air outlet temperature is increased, then the phenomenon that cold air directly blows a user is avoided, the indoor temperature rising efficiency cannot be reduced, and the comfort level of the user is improved. Meanwhile, the air outlet direction of the air outlet can be kept away from the position where the user is located.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner cold wind prevention control method, a control device and an air conditioner. Background Art

[0002] With the popularity of air conditioners, people have put forward higher requirements for the comfort of using air conditioners. When the existing air conditioners are in heating operation, especially in low-temperature heating, because the temperature of the indoor air and the indoor unit coil is relatively low (about 10 degrees), the air outlet of the air conditioner will blow out relatively cold air in the initial stage. In the related technology, in order to reduce the discomfort caused by the cold air blown by the air conditioner to the human body, the air conditioner will enter the anti-cold wind mode, such as turning off the indoor fan to prevent the cold air from blowing directly on the human body. This method will affect the user experience and the indoor heating effect. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention provides an air conditioner that can recover the heat of the high-temperature components of the outdoor unit and release the heat to the indoor heat exchanger through a heat release loop when the air conditioner blows cold air, thereby reducing the discomfort caused to the user.

[0004] The invention also provides a control method for the air conditioner.

[0005] The invention also provides a control device for an air conditioner.

[0006] The invention also provides an air conditioner.

[0007] According to a first aspect of the present invention, an air conditioner is provided, comprising:

[0008] A refrigerant circulation loop formed by at least a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger;

[0009] Thermal storage device;

[0010] A heat recovery circuit, wherein a solenoid valve is provided on the heat recovery circuit, at least a portion of the pipe section of the heat recovery circuit exchanges heat with a high-temperature component of the outdoor unit, and at least a portion of the pipe section exchanges heat with the heat storage device;

[0011] A heat release circuit, wherein an electronic expansion valve is provided on the heat release circuit, at least a portion of the pipe section of the heat release circuit exchanges heat with the indoor heat exchanger, and at least a portion of the pipe section exchanges heat with the heat storage device;

[0012] A human detection device is used to detect whether there is a person in the target room and the position and distance of the person relative to the air outlet of the indoor unit;

[0013] An air guide component is arranged at the air outlet of the indoor unit;

[0014] A controller is electrically connected to the air guide assembly, the human body detection device, the solenoid valve, the electronic expansion valve and the compressor.

[0015] According to one embodiment of the present invention, the air guide assembly includes a horizontal air guide plate, a vertical air guide plate and a drive assembly, the drive assembly is transmission-connected to the horizontal air guide plate and the vertical air guide plate, and the drive assembly is electrically connected to the controller.

[0016] According to a second aspect of the present invention, a cold wind prevention control method for an air conditioner is provided, comprising:

[0017] Acquire personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship; wherein the current state includes at least a low-temperature unmanned state and a manned state;

[0018] When the current state is a low-temperature unmanned state, a signal for controlling the operation of the heat release circuit is sent;

[0019] When the current state is a occupied state, the position of the person is determined according to the personnel information, and the target air outlet angle is determined according to the position of the person; a signal is sent to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

[0020] According to an embodiment of the present invention, the step of determining the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship includes:

[0021] When there is no person in the target room and the coil temperature is lower than the preset coil temperature, determining that the current state is the low-temperature unmanned state;

[0022] When there is a person in the target room, it is determined that the current state is a occupied state.

[0023] According to an embodiment of the present invention, the step of determining the personnel position according to the personnel information, and determining the target air outlet angle according to the personnel position includes:

[0024] Determine, according to the personnel information, a first deviation state of the personnel relative to the vertical reference line of the air outlet and a second deviation state of the personnel relative to the horizontal reference line of the air outlet;

[0025] A first target air outlet angle of the vertical air guide plate is determined according to the first deviation state, and a second target air outlet angle of the horizontal air guide plate is determined according to the second deviation state.

[0026] According to an embodiment of the present invention, when the current state is a occupied state, the cold wind prevention control method further includes:

[0027] The air outlet distance between the person and the air outlet of the indoor unit is determined according to the person information, and the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit is controlled according to the air outlet distance.

[0028] According to one embodiment of the present invention, the step of controlling the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit according to the air outlet distance includes:

[0029] When the air outlet distance is less than a first preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a first target opening, adjust the operating frequency of the compressor to a first target frequency, and adjust the wind speed of the outdoor fan to a first target wind speed;

[0030] When the air outlet distance is between the first preset distance and the second preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a second target opening, adjust the operating frequency of the compressor to a second target frequency, and adjust the wind speed of the outdoor fan to a second target wind speed;

[0031] When the air outlet distance is between the second preset distance and the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a third target opening, the operating frequency of the compressor to a third target frequency, and the wind speed of the outdoor fan to a third target wind speed;

[0032] When the air outlet distance is greater than the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a fourth target opening, the operating frequency of the compressor to a fourth target frequency, and the wind speed of the outdoor fan to a fourth target wind speed;

[0033] Among them, the first target opening, the second target opening, the third target opening, and the fourth target opening increase sequentially, the first target frequency, the second target frequency, the third target frequency, and the fourth target frequency increase sequentially, and the first target wind speed, the second target wind speed, the third target wind speed, and the fourth target wind speed increase sequentially.

[0034] According to one embodiment of the present invention, the cold wind prevention control method further includes:

[0035] Acquiring a medium temperature in a heat storage device, and determining a heat storage state of the heat storage device according to the medium temperature and a predetermined heat recovery rule; wherein the heat storage state includes a heat-deficient state and a heat-sufficient state;

[0036] When the heat storage state is a heat-deficient state, a signal for controlling the operation of a heat recovery loop is sent;

[0037] When the heat storage state is a heat sufficient state, a signal is sent to control the heat release circuit to operate or standby.

[0038] According to a third aspect of the present invention, a cold wind prevention control device for an air conditioner is provided, comprising:

[0039] An acquisition module, used to acquire personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship; wherein the current state at least includes a low-temperature unmanned state and a manned state;

[0040] A signal sending module is used to send a signal to control the operation of the heat release circuit when the current state is a low-temperature unmanned state; and when the current state is a manned state, determine the position of the person according to the personnel information, and determine the target air outlet angle according to the position of the person; send a signal to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

[0041] An air conditioner provided in accordance with an embodiment of the fourth aspect of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the cold wind prevention control method for the air conditioner provided in accordance with an embodiment of the second aspect of the present invention are implemented.

[0042] The above one or more technical solutions in the present invention have at least one of the following technical effects:

[0043] The air conditioner provided according to the embodiment of the present invention includes a refrigerant circulation circuit, a heat storage device, a heat recovery circuit, a heat release circuit, a human body detection device, an air guide component and a controller, etc. The refrigerant circulation circuit is formed by connecting a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger through a refrigerant pipeline; a solenoid valve is provided on the heat recovery circuit, at least a part of the pipe section of the heat recovery circuit exchanges heat with the high-temperature component of the outdoor unit, and at least a part of the pipe section exchanges heat with the heat storage device; an electronic expansion valve is provided on the heat release circuit, at least a part of the pipe section of the heat release circuit exchanges heat with the indoor heat exchanger, and at least a part of the pipe section exchanges heat with the heat storage device; the human body detection device is used to detect whether there is a person in the target room and the position and distance of the person relative to the air outlet of the indoor unit; the air guide component is provided at the air outlet of the indoor unit; the controller is electrically connected to the air guide component, the human body detection device, the solenoid valve, the electronic expansion valve and the compressor. During the operation of the air conditioner, the heat emitted by the high-temperature component of the outdoor unit can be recovered through the heat recovery circuit and stored in the heat storage device. When the air conditioner is running in low-temperature heating mode, the heat release circuit is controlled to operate, and the indoor fan can make the air exchange heat with the indoor coil and the heat release circuit, thereby increasing the air temperature, thereby avoiding the phenomenon of cold air blowing directly on the user during the low-temperature heating startup phase of the air conditioner. This not only does not reduce the indoor heating efficiency, but also improves the user's comfort. At the same time, if the current state of the target room is different, the air outlet angle of the air guide component can also be adjusted, so that the air outlet direction of the indoor unit outlet avoids the user's location, further improving the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic structural diagram of an air conditioner provided in an embodiment of the present invention;

[0046] Figure 2 A front view of an indoor unit of an air conditioner provided by an embodiment of the present invention;

[0047] Figure 3 A schematic diagram of switching the air outlet angle of the air guide plate of the indoor unit provided by an embodiment of the present invention;

[0048] Figure 4 A flow chart of a cold wind prevention control method for an air conditioner provided by an embodiment of the present invention;

[0049] Figure 5A schematic structural diagram of a cold wind prevention control device for an air conditioner provided in an embodiment of the present invention;

[0050] Figure 6 A schematic structural diagram of an air conditioner provided in an embodiment of the present invention.

[0051] Reference numerals:

[0052] 10. Compressor; 11. Indoor heat exchanger; 12. Throttling device; 13. Outdoor heat exchanger; 14. Heat storage device; 15. Heat recovery circuit; 151. Solenoid valve; 16. Heat release circuit; 161. Electronic expansion valve; 17. Human body detection device; 18. Air guide assembly; 181. Horizontal air guide plate; 182. Vertical air guide plate;

[0053] 701, acquisition module; 702, control module. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0056] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0057] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] In order to reduce the discomfort caused by the cold air blown by the air conditioner to the human body, the air conditioner will enter the anti-cold air mode, such as turning off the indoor fan to prevent the cold air from blowing directly on the human body. This method will affect the user experience and the indoor heating effect.

[0060] According to the first aspect of the present invention, an air conditioner is provided. Figures 1 to 3 , including at least a compressor 10, an indoor heat exchanger 11, a throttling device 12, an outdoor heat exchanger 13, a heat storage device 14, a heat recovery circuit 15, a heat release circuit 16, a human body detection device 17, an air guide component 18 and a controller.

[0061] The air conditioner includes an indoor unit and an outdoor unit. The indoor unit is provided with an indoor heat exchanger 11 and an indoor fan, etc., and an air outlet is provided on the housing of the indoor unit; the outdoor unit is provided with an outdoor fan, an outdoor heat exchanger 13, a compressor 10, etc., and the heat storage device 14 can be provided separately or inside the outdoor unit. The compressor 10, the indoor heat exchanger 11, the throttling device 12 and the outdoor heat exchanger 13 are connected by a refrigerant pipeline to form a refrigerant circulation loop. A four-way valve can also be provided on the refrigerant circulation loop to switch the heating and cooling modes of the air conditioner.

[0062] The air conditioner provided in the embodiment of the present invention also includes a heat recovery circuit 15 and a heat release circuit 16. The heat recovery circuit 15 is used to recover the heat of the high-temperature components of the outdoor unit, and the heat release circuit 16 can supplement heat to the indoor heat exchanger 11 to increase the temperature of the cold air. A solenoid valve 151 is provided on the heat recovery circuit 15, which can control the on and off of the heat recovery circuit 15. At least a part of the pipe section of the heat recovery circuit 15 exchanges heat with the high-temperature components of the outdoor unit. The high-temperature components include a compressor 10, an outdoor fan, and a computer board, etc. Therefore, a plurality of pipe sections can be provided to exchange heat with these high-temperature components respectively. In order to avoid mutual interference, these pipe sections can be parallel heat exchange branches. At least another part of the pipe section of the heat recovery circuit 15 exchanges heat with the heat storage device 14, and the heat from the high-temperature components can be transferred to the heat storage device 14.

[0063] The heat release circuit 16 is provided with an electronic expansion valve 161, which can control the flow rate of the refrigerant in the circuit, and thus determine the heat release efficiency. At least a portion of the pipe section of the heat release circuit 16 exchanges heat with the indoor heat exchanger 11, and is used to supplement heat to the indoor heat exchanger 11, and at least another portion of the pipe section exchanges heat with the heat storage device 14, and can release the heat stored in the heat storage device 14 to the indoor heat exchanger 11.

[0064] It should be noted that both the heat recovery circuit 15 and the heat release circuit 16 include a refrigerant driving device, such as a water pump or a compressor, etc. The refrigerant driving device can accurately control the refrigerant flow rate and heat exchange amount in the circuit.

[0065] See also Figure 2 A human body detection device 17 is also provided on the indoor unit. The human body detection device 17 is used to detect whether there is a person in the target room and the position and distance of the person relative to the air outlet of the indoor unit.

[0066] The air guide component 18 is arranged at the air outlet of the indoor unit, and the air outlet angle of the air outlet can be adjusted. Combined with the personnel position information obtained by the human body detection device 17, the air outlet can be prevented from blowing toward the indoor personnel.

[0067] The air conditioner also includes a controller, which is connected to circuits such as the air guide component 18, the human body detection device 17, the solenoid valve 151, the electronic expansion valve 161, the compressor 10, the indoor fan and the outdoor fan. The controller can control the air guide component 18 to adjust the air outlet angle based on the acquired parameters and preset programs, obtain personnel information through the human body detection device 17, control the on and off of the solenoid valve 151, control the opening steps of the electronic expansion valve 161, control the operating frequency of the compressor 10, and control the speed of the fan, etc.

[0068] In some embodiments, the controller is configured to obtain personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room based on the personnel information, the coil temperature and a preset state correspondence; wherein the current state includes at least a low-temperature unmanned state and a manned state; when the current state is a low-temperature unmanned state, a signal for controlling the operation of the heat release circuit is issued; when the current state is a manned state, the position of the person is determined based on the personnel information, and the target air outlet angle is determined based on the position of the person; a signal is issued to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

[0069] In some embodiments, the air guide assembly 18 includes a horizontal air guide plate 181, a vertical air guide plate 182, and a drive assembly. The drive assembly is transmission-connected to the horizontal air guide plate 181 and the vertical air guide plate 182, and the drive assembly is electrically connected to the controller.

[0070] See also Figure 3 By controlling the pitch angle of the horizontal air guide plate 181, the air outlet angle of the air outlet along the pitch direction can be controlled; by controlling the horizontal angle of the vertical air guide plate 182, the air outlet angle of the air outlet along the horizontal direction can be controlled.

[0071] According to the second aspect of the present invention, the cold wind prevention control method of the air conditioner is provided. Figure 4 ,include:

[0072] Obtain personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence; wherein the current state includes at least a low-temperature unmanned state and a manned state.

[0073] It is understandable that the personnel information in the target room can be obtained through the human body detection device, and the human body detection device can intelligently identify whether there is a person in the target room and the position and distance of the person relative to the air outlet of the indoor unit. The coil temperature of the indoor unit can be obtained through a temperature sensor. The coil temperature sensor can be built-in to the indoor unit or can be set separately. The coil temperature sensor signal is connected to the controller. The personnel information includes a manned state or an unmanned state. The human body detection device can output a high-level signal and a low-level signal respectively. According to the preset state correspondence relationship and the personnel information and the coil temperature, when the personnel information and the coil temperature meet the conditions set by the preset state correspondence relationship, the current state in the target room can be determined, and the current state at least includes a low-temperature unmanned state and a manned state.

[0074] When the current state is a low-temperature unmanned state, a signal is sent to control the operation of the heat release circuit.

[0075] It is understandable that when there is no one in the target room, the relationship between the indoor heat exchanger coil temperature and the preset coil temperature is compared. In the low-temperature and unmanned state, heat can be released to the indoor heat exchanger through the heat release circuit, and heat can be supplemented to the indoor heat exchanger through the heat storage device as much as possible, so as to increase the temperature in the target room as soon as possible and improve the heating effect.

[0076] When the current state is a high-temperature, unmanned state, that is, the coil temperature is high, the air outlet temperature is high, and cold air will not be blown to the user. Therefore, it can be executed directly according to the preset program without opening the heat release circuit.

[0077] When the current state is a occupied state, the position of the person is determined based on the personnel information, and the target air outlet angle is determined based on the position of the person; a signal is sent to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

[0078] It is understandable that when there are people in the target room, the angle of the air guide plate can be adjusted to avoid the outlet direction of the people, avoiding direct cold wind and improving the user's comfort. At the same time, the heat release circuit can be opened synchronously to supplement the heat of the indoor heat exchanger.

[0079] When the air conditioner provided by the embodiment of the present invention operates in the low-temperature heating mode, the heat release circuit is controlled to operate, and the indoor fan can make the air exchange heat with the indoor coil and the heat release circuit, thereby increasing the temperature of the air, thereby avoiding the phenomenon of cold air blowing directly on the user during the low-temperature heating startup phase of the air conditioner, which not only does not reduce the indoor heating efficiency, but also improves the user's comfort. At the same time, when the current state of the target room is different, the air outlet angle of the air guide component can also be adjusted, so that the air outlet direction of the indoor unit outlet avoids the user's location, further improving the user's comfort.

[0080] The cold wind prevention control method for the air conditioner provided by the embodiment of the present invention is described in detail in Figure 4 , mainly including the following processes:

[0081] S100: Obtaining personnel information in the target room and the coil temperature of the indoor unit.

[0082] S110: Determine the current state of the target room according to personnel information, coil temperature, and a preset state correspondence relationship.

[0083] S120, determining whether the current state is a low-temperature, unmanned state.

[0084] If yes, execute step S130 ; if no, execute steps S140 to S150 .

[0085] S130. Send a signal to control the operation of the heat release circuit.

[0086] S140: Determine the personnel position according to the personnel information, and determine the target air outlet angle according to the personnel position.

[0087] S150: Sending a signal to control the air outlet angle of the air guide component to a target air outlet angle.

[0088] In some embodiments, the step of determining the current state of the target room according to the personnel information, the coil temperature and the preset state correspondence relationship includes:

[0089] When there is no person in the target room and the coil temperature is lower than the preset coil temperature, it is determined that the current state is the low-temperature unmanned state.

[0090] When there is a person in the target room, the current state is determined to be an occupied state.

[0091] It is understandable that when there are no people in the target room, there is no need to consider the impact of the outlet air temperature on the user. Therefore, in order to quickly increase the temperature in the target room, the heat release circuit is opened to the maximum to quickly increase the indoor temperature to meet the user's heating needs. When there are people in the target room, it is necessary to consider the impact of the air blowing towards the user, and then use the strategy of adjusting the air outlet direction with the air guide plate.

[0092] In some embodiments, the step of determining the position of a person according to the person information, and determining the target air outlet angle according to the person position includes:

[0093] Determine, based on the personnel information, a first deviation state of the personnel relative to a vertical reference line of the air outlet and a second deviation state of the personnel relative to a horizontal reference line of the air outlet;

[0094] A first target air outlet angle of the vertical air guide plate is determined according to the first deviation state, and a second target air outlet angle of the horizontal air guide plate is determined according to the second deviation state.

[0095] It is understandable that the air conditioner involved in the present invention includes both horizontal air guide plates and vertical air guide plates, and the air outlet angle can be adjusted to deflect upward, downward, left or right. The human body detection device can determine the first deviation state of the person relative to the vertical reference line of the air outlet and the second deviation state of the person relative to the horizontal reference line of the air outlet, wherein the vertical reference line can be the vertical center line of the air outlet, and the horizontal reference line can be the reference line at a depression angle of 45°. If the person deviates to the left relative to the vertical reference line, the vertical air guide plate is controlled to rotate to the right; if the person deviates to the right relative to the vertical reference line, the vertical air guide plate is controlled to rotate to the left; if the person deviates to the top relative to the horizontal reference line, the horizontal air guide plate is controlled to rotate downward; if the person deviates to the bottom relative to the horizontal reference line, the horizontal air guide plate is controlled to rotate upward.

[0096] In some embodiments, when the current state is a occupied state, the cold wind prevention control method further includes:

[0097] The air outlet distance between the personnel and the air outlet of the indoor unit is determined according to the personnel information, and the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit is controlled according to the air outlet distance.

[0098] It is understandable that the air outlet temperature will decrease as the air outlet distance increases, which will make the user feel uncomfortable. When there are people in the house, the air outlet distance between the user and the air outlet is detected by the human body detection device, and the air outlet temperature is controlled according to the distance of the air outlet, which can improve the comfort of the human body and prevent cold wind from blowing people during heating. When the person is closer to the air outlet, the temperature drops less, the indoor heat exchanger absorbs relatively less heat from the energy storage device, the compressor frequency is relatively low, and the outdoor fan speed is relatively low; when the person is far away from the air outlet, the temperature drops more, the indoor heat exchanger needs to absorb more heat from the heat storage device, the compressor frequency is relatively high, and the outdoor fan speed is relatively high, thereby increasing the air outlet temperature.

[0099] According to one embodiment of the present invention, the step of controlling the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit according to the air outlet distance includes:

[0100] When the air outlet distance is less than the first preset distance, a signal is sent to adjust the opening of the electronic expansion valve to the first target opening, the operating frequency of the compressor to the first target frequency, and the wind speed of the outdoor fan to the first target wind speed.

[0101] When the air outlet distance is between the first preset distance and the second preset distance, a signal is sent to adjust the opening of the electronic expansion valve to the second target opening, the operating frequency of the compressor to the second target frequency, and the wind speed of the outdoor fan to the second target wind speed.

[0102] When the air outlet distance is between the second preset distance and the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to the third target opening, the operating frequency of the compressor to the third target frequency, and the wind speed of the outdoor fan to the third target wind speed.

[0103] When the air outlet distance is greater than the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a fourth target opening, the operating frequency of the compressor to a fourth target frequency, and the wind speed of the outdoor fan to a fourth target wind speed.

[0104] Among them, the first target opening, the second target opening, the third target opening, and the fourth target opening increase successively, the first target frequency, the second target frequency, the third target frequency, and the fourth target frequency increase successively, and the first target wind speed, the second target wind speed, the third target wind speed, and the fourth target wind speed increase successively.

[0105] It is understandable that the outlet air temperature will decrease as the outlet air distance increases, which will make the user feel uncomfortable. When there are people in the house, the outlet air distance between the user and the outlet air is detected by the human body detection device, and the outlet air temperature is controlled according to the distance of the outlet air, which can improve the human comfort and prevent cold wind from blowing people during heating. As the outlet air distance increases, the operating frequency of the compressor and the wind speed of the outdoor fan are gradually increased, which can increase the temperature of the indoor heat exchanger, gradually increase the opening of the electronic expansion valve, and increase the heat supplement of the heat release circuit, so the outlet air temperature can be increased.

[0106] In some embodiments, the cold wind prevention control method of the air conditioner further includes:

[0107] The medium temperature in the heat storage device is obtained, and the heat storage state of the heat storage device is determined according to the medium temperature and a predetermined heat recovery rule; wherein the heat storage state includes a heat-deficient state and a heat-sufficient state.

[0108] When the heat storage state is a heat-deficient state, a signal is sent to control the operation of the heat recovery loop.

[0109] When the heat storage state is a sufficient heat state, a signal is sent to control the heat release circuit to operate or standby.

[0110] It is understandable that the air conditioner needs to monitor the medium temperature in the heat storage device at all times. The medium temperature is obtained through a temperature sensor set in the heat storage chamber, and can also be obtained based on the temperature of the refrigerant flowing out of the heat release circuit. When the refrigerant temperature meets certain conditions, the heat storage state of the heat storage device is determined based on the medium temperature and the predetermined heat recovery rules. When the heat storage state is a heat-deficient state, a signal is sent to control the operation of the heat recovery circuit to recover the heat in the outdoor unit to the heat storage device. When the heat storage state is a heat-sufficient state, the heat release circuit can be opened in time to supplement the heat for the indoor heat exchanger, or the heat release circuit can be put in a standby state and run at any time.

[0111] According to the third aspect of the present invention, the cold wind control device for the air conditioner is provided. Figure 5 ,include:

[0112] The acquisition module 701 is used to obtain the personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and the preset state correspondence; wherein the current state at least includes a low temperature unmanned state and a manned state.

[0113] The signal sending module 702 is used to send a signal to control the operation of the heat release circuit when the current state is a low-temperature unmanned state; and when the current state is a manned state, determine the personnel position according to the personnel information, and determine the target air outlet angle according to the personnel position; send a signal to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the personnel position.

[0114] It should be noted that the above steps S100 to S150, and other steps are only for the convenience of expression, and do not constitute a time sequence limitation for each step in the cold wind prevention control method of the air conditioner. In addition, some contents are described in detail in the cold wind prevention control method of the air conditioner provided in the second aspect embodiment, and the contents in all the cold wind prevention control methods of the air conditioner are also applicable to the cold wind prevention control device of the air conditioner provided in the third aspect embodiment, and in order to avoid repetition, the cold wind prevention control device of the air conditioner provided in the third aspect embodiment is not described in detail. Similarly, the contents in the above two aspects of the embodiments can be used to explain the contents of all the following aspects of the embodiments, so the repeated contents will not be repeated in the following embodiments. The cold wind prevention control device for the air conditioner provided according to the embodiment of the present invention has a technical effect corresponding to the technical effect of the cold wind prevention control method of the air conditioner, which will not be repeated here.

[0115] An air conditioner provided in accordance with an embodiment of the fourth aspect of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the cold wind prevention control method for the air conditioner provided in accordance with an embodiment of the second aspect of the present invention are implemented.

[0116] Figure 6The physical structure diagram of an electronic device is illustrated, and the electronic device may include: a processor 810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 complete mutual communication through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the cold wind prevention control method of the air conditioner, and the method includes: obtaining the personnel information in the target room and the coil temperature of the indoor unit, and determining the current state of the target room according to the personnel information, the coil temperature and the preset state correspondence relationship; wherein the current state includes at least a low temperature unmanned state and a manned state. And when the current state is a low temperature unmanned state, a signal for controlling the operation of the heat release circuit is issued; and when the current state is a manned state, the personnel position is determined according to the personnel information, and the target air outlet angle is determined according to the personnel position; a signal for controlling the air outlet angle of the air guide component to the target air outlet angle is issued; wherein, at the target air outlet angle, the air outlet of the air outlet of the indoor unit avoids the personnel position.

[0117] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0118] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0119] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: include: A refrigerant circulation loop formed by at least a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger; Thermal storage device; A heat recovery circuit, wherein a solenoid valve is provided on the heat recovery circuit, at least a portion of the pipe section of the heat recovery circuit exchanges heat with a high-temperature component of the outdoor unit, and at least a portion of the pipe section exchanges heat with the heat storage device; A heat release circuit, wherein an electronic expansion valve is provided on the heat release circuit, at least a portion of the pipe section of the heat release circuit exchanges heat with the indoor heat exchanger, and at least a portion of the pipe section exchanges heat with the heat storage device; A human detection device is used to detect whether there is a person in the target room and the position and distance of the person relative to the air outlet of the indoor unit; An air guide component is arranged at the air outlet of the indoor unit; A controller is electrically connected to the air guide assembly, the human body detection device, the solenoid valve, the electronic expansion valve and the compressor.

2. The air conditioner according to claim 1, characterized in that: The wind guide assembly includes a horizontal wind guide plate, a vertical wind guide plate and a driving assembly. The driving assembly is transmission-connected to the horizontal wind guide plate and the vertical wind guide plate, and the driving assembly is electrically connected to the controller.

3. A cold wind prevention control method for an air conditioner as claimed in claim 1 or 2, characterized in that: include: Acquire personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship; wherein the current state includes at least a low-temperature unmanned state and a manned state; When the current state is a low-temperature unmanned state, a signal for controlling the operation of a heat release circuit is sent; When the current state is a occupied state, the position of the person is determined according to the personnel information, and the target air outlet angle is determined according to the position of the person; a signal is sent to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

4. The cold wind prevention control method of the air conditioner according to claim 3, characterized in that: The step of determining the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship includes: When there is no person in the target room and the coil temperature is lower than the preset coil temperature, determining that the current state is the low-temperature unmanned state; When there is a person in the target room, the current state is determined to be a occupied state.

5. The cold wind prevention control method of the air conditioner according to claim 3, characterized in that: The step of determining the personnel position according to the personnel information, and determining the target air outlet angle according to the personnel position includes: Determine, according to the personnel information, a first deviation state of the personnel relative to the vertical reference line of the air outlet and a second deviation state of the personnel relative to the horizontal reference line of the air outlet; A first target air outlet angle of the vertical air guide plate is determined according to the first deviation state, and a second target air outlet angle of the horizontal air guide plate is determined according to the second deviation state.

6. The cold wind prevention control method of the air conditioner according to claim 3, characterized in that: When the current state is a occupied state, the cold wind prevention control method further includes: The air outlet distance between the person and the air outlet of the indoor unit is determined according to the person information, and the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit is controlled according to the air outlet distance.

7. The cold wind prevention control method of the air conditioner according to claim 6, characterized in that: The step of controlling the operation of the electronic expansion valve, the compressor and the outdoor fan of the heat release circuit according to the air outlet distance includes: When the air outlet distance is less than a first preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a first target opening, adjust the operating frequency of the compressor to a first target frequency, and adjust the wind speed of the outdoor fan to a first target wind speed; When the air outlet distance is between the first preset distance and the second preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a second target opening, adjust the operating frequency of the compressor to a second target frequency, and adjust the wind speed of the outdoor fan to a second target wind speed; When the air outlet distance is between the second preset distance and the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a third target opening, adjust the operating frequency of the compressor to a third target frequency, and adjust the wind speed of the outdoor fan to a third target wind speed; When the air outlet distance is greater than the third preset distance, a signal is sent to adjust the opening of the electronic expansion valve to a fourth target opening, the operating frequency of the compressor to a fourth target frequency, and the wind speed of the outdoor fan to a fourth target wind speed; Among them, the first target opening, the second target opening, the third target opening, and the fourth target opening increase sequentially, the first target frequency, the second target frequency, the third target frequency, and the fourth target frequency increase sequentially, and the first target wind speed, the second target wind speed, the third target wind speed, and the fourth target wind speed increase sequentially.

8. The cold wind prevention control method for an air conditioner according to any one of claims 3 to 7, characterized in that: The cold wind prevention control method also includes: Acquiring a medium temperature in a heat storage device, and determining a heat storage state of the heat storage device according to the medium temperature and a predetermined heat recovery rule; wherein the heat storage state includes a heat-deficient state and a heat-sufficient state; When the heat storage state is a heat-deficient state, a signal for controlling the operation of a heat recovery loop is sent; When the heat storage state is a heat sufficient state, a signal is sent to control the heat release circuit to operate or standby.

9. A cold wind prevention control device for an air conditioner, characterized in that: include: An acquisition module, used to acquire personnel information in the target room and the coil temperature of the indoor unit, and determine the current state of the target room according to the personnel information, the coil temperature and a preset state correspondence relationship; wherein the current state at least includes a low-temperature unmanned state and a manned state; A signal sending module is used to send a signal to control the operation of a heat release circuit when the current state is a low-temperature unmanned state; and when the current state is a manned state, determine the position of a person according to the personnel information, and determine a target air outlet angle according to the position of the person; and send a signal to control the air outlet angle of the air guide component to the target air outlet angle; wherein, at the target air outlet angle, the air outlet of the indoor unit avoids the position of the person.

10. An air conditioner comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the cold wind prevention control method of the air conditioner as described in any one of claims 4 to 8 are implemented.

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