A dry wardrobe

Abstract

The present invention discloses a dry wardrobe, which includes a cabinet body, an outdoor unit and an indoor unit; the indoor unit and the outdoor unit are connected by pipelines to achieve heat transfer between the cabinet body and the outdoors, and the switching between the refrigeration dry clothes mode and the heating dry clothes mode is controlled by controlling the heat transfer direction; the cabinet fan and the indoor evaporator of the indoor unit are arranged in the cabinet body, the air inlet end of the cabinet fan is aligned with the air inlet of the cabinet body, the indoor evaporator is arranged at the air inlet end of the cabinet fan, and the air outlet of the cabinet body is set to conduct unidirectionally outwards; the cabinet body is also provided with a baffle, a return air outlet communicating the two is arranged between the air inlet and the air outlet, and the baffle switches between the return air outlet and the air inlet to control the cabinet body to realize the switching between the external circulation and the internal circulation. It can switch between the refrigeration dry clothes mode and the heating dry clothes mode in the internal circulation state, isolate from the room air, and does not affect the room temperature and humidity.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing treatment, and particularly to a dry wardrobe. Background Art

[0002] Traditional electric heating cabinet-type dry wardrobes mainly draw in room air, heat the air through an electric heating device, and then blow the hot air into the dry wardrobe to form a positive pressure. The hot air blows over the surface of the wet clothes to accelerate the evaporation of the water in the clothes. The evaporated water vapor is discharged outside the cabinet from the air outlet of the wardrobe by the positive pressure inside the cabinet, so as to achieve the effect of drying clothes. The existing dry clothing products mainly draw in room air, heat it into high-temperature air through electric heating, consume a large amount of electricity, and the high-temperature and high-humidity air formed by blowing the air over the clothes to take away the water vapor is discharged into the room outside the cabinet, which will seriously affect the environmental comfort of the room. This shortcoming is particularly serious in spring and summer. Summary of the Invention

[0003] The present invention provides a dry wardrobe, which can reduce power consumption, achieve isolation from room air, and does not affect the room temperature and humidity.

[0004] An embodiment of the present invention provides a dry wardrobe, which includes a cabinet body, an outdoor unit and an indoor unit;

[0005] The indoor unit is installed inside the cabinet body, the outdoor unit is installed outdoors, and the indoor unit and the outdoor unit are connected by a pipeline for realizing heat transfer between the cabinet body and the outside, and controlling the switching between the refrigeration dry clothing mode and the heating dry clothing mode by controlling the heat transfer direction;

[0006] The indoor unit includes a blower inside the cabinet and an indoor evaporator;

[0007] The air inlet end of the blower inside the cabinet is aligned with the air inlet of the cabinet body, the indoor evaporator is arranged at the air inlet end of the blower inside the cabinet, and the air outlet of the cabinet body is set to conduct unidirectionally outwards;

[0008] The cabinet body is further provided with a baffle, and an air return port communicating the two is arranged between the air inlet and the air outlet. The baffle switches between the air return port and the air inlet to control the cabinet body to realize the switching between external circulation and internal circulation.

[0009] Preferably, the outdoor unit includes a compressor, a liquid storage tank, a four-way valve, a condenser and an outdoor blower;

[0010] The output end of the liquid storage tank is connected to the input end of the compressor. The output end of the compressor is connected to the first end of a four-way valve through a pipeline. The second end of the four-way valve is connected to the first end of an indoor evaporator through a pipeline equipped with a low-pressure valve. The second end of the indoor evaporator is connected to the first end of the condenser through a pipeline equipped with a high-pressure valve. The second end of the condenser is connected to the third end of the four-way valve through a pipeline. The fourth end of the four-way valve is connected to the input end of the liquid storage tank through a pipeline. The air outlet end of the outdoor fan is aligned with the condenser.

[0011] The four-way valve controls the switching between the heating and drying mode and the cooling and drying mode of the control cabinet by switching between the first conduction state where the first end and the second end are conducted and the third end and the fourth end are conducted, and the second conduction state where the first end and the third end are conducted and the second end and the fourth end are conducted.

[0012] Furthermore, a cabinet temperature sensor and a cabinet humidity sensor are also configured inside the cabinet of the dry closet.

[0013] As an improvement to the above solution, the dry closet is also equipped with a controller, which is used to control the dry closet to switch between the internal circulation and the external circulation, and to switch between the cooling and drying mode and the heating and drying mode according to the temperature obtained by the cabinet temperature sensor and the humidity obtained by the cabinet humidity sensor.

[0014] Preferably, the controller configured for the dry closet is used to execute:

[0015] S01, in response to the dry cleaning mode start instruction, start the dry cleaning mode and control the in-cabinet fan to start working;

[0016] S02, determine whether it is true that the dry cleaning mode start time is greater than the first preset time and the time when the humidity of the cabinet is less than the first preset humidity is not less than the second preset time;

[0017] If so, the dry cleaning mode ends and the in-cabinet fan is controlled to stop working;

[0018] If not, execute step S03;

[0019] S03, judge whether the cabinet is in the internal circulation by detecting the position of the baffle;

[0020] If not, execute step S04;

[0021] If so, execute step S07;

[0022] S04, control the baffle to be in the air return opening position through the control of the stepper motor to perform the external circulation, and control the in-cabinet fan to operate at a preset first power for a third preset time;

[0023] S05, determine whether the humidity inside the cabinet is not less than a second preset humidity, where the second preset humidity is not less than the first preset humidity;

[0024] If so, return to step S04;

[0025] If not, execute step S07;

[0026] S06, control the baffle to be at the air outlet position through controlling the stepper motor to perform internal circulation;

[0027] S07, determine whether the temperature inside the cabinet is less than a first preset temperature;

[0028] If not, execute step S08;

[0029] If so, execute step S10;

[0030] S08, control the four-way valve to switch to a second conduction state where the first end is conducted with the third end and the second end is conducted with the fourth end, and control the outdoor unit and the indoor unit to work at the refrigeration power corresponding to the second preset temperature to enter the refrigeration drying mode;

[0031] S09, determine whether the humidity inside the cabinet is less than a third preset humidity or the temperature inside the cabinet is not greater than the second preset temperature holds; the third preset humidity is between the first preset humidity and the second preset humidity;

[0032] If so, execute step S10;

[0033] If not, return to step S08;

[0034] S10, control the four-way valve to switch to a first conduction state where the first end is conducted with the second end and the third end is conducted with the fourth end, and control the outdoor unit and the indoor unit to work at the heating power corresponding to the fourth preset temperature to enter the heating drying mode, where the fourth preset temperature is greater than the second preset temperature;

[0035] S11, determine whether the humidity inside the cabinet is greater than a fourth preset humidity or the temperature inside the cabinet is not less than the fourth preset temperature holds;

[0036] If so, execute step S08;

[0037] If not, return to step S10;

[0038] The controller is further configured to execute:

[0039] Determine whether the dry - drying mode start time is greater than the first preset time and the time when the humidity of the cabinet is less than the first preset humidity is not less than the second preset time holds;

[0040] If so, the drying mode ends, and the outdoor unit and the indoor unit are controlled to stop working.

[0041] Preferably, the controller configured for the drying wardrobe is further configured to:

[0042] When it is detected that the refrigeration drying mode is in progress, the current temperature of the cabinet body is detected in real time, the refrigeration difference between the current temperature and the preset refrigeration temperature is calculated, and the change trend of the calculated refrigeration difference is judged within a preset refrigeration period;

[0043] When the refrigeration difference shows a decreasing trend, the current refrigeration difference is judged;

[0044] When the refrigeration difference is greater than the preset first refrigeration temperature value, the maximum operating frequency of the refrigeration drying mode is set to the preset first refrigeration frequency; when the refrigeration difference is not greater than the first refrigeration temperature value and is greater than the preset second refrigeration temperature, the maximum operating frequency of the refrigeration drying mode is set to the preset second refrigeration frequency; when the refrigeration difference is not greater than the second refrigeration temperature value and is greater than the preset third refrigeration temperature, the maximum operating frequency of the refrigeration drying mode is set to the preset third refrigeration frequency; when the refrigeration difference is not greater than the third refrigeration temperature value, the maximum operating frequency of the refrigeration drying mode is set to the preset fourth refrigeration frequency;

[0045] When the refrigeration difference shows an increasing trend, the current refrigeration difference is judged;

[0046] When the refrigeration difference is greater than the preset fourth refrigeration temperature value, the maximum operating frequency of the refrigeration drying mode is set to the first refrigeration frequency; when the refrigeration difference is not greater than the fourth refrigeration temperature value and is greater than the preset fifth refrigeration temperature, the maximum operating frequency of the refrigeration drying mode is set to the second refrigeration frequency; when the refrigeration difference is not greater than the fifth refrigeration temperature value and is greater than the preset sixth refrigeration temperature, the maximum operating frequency of the refrigeration drying mode is set to the third refrigeration frequency; when the refrigeration difference is not greater than the sixth refrigeration temperature value, the maximum operating frequency of the refrigeration drying mode is set to the fourth refrigeration frequency;

[0047] Among them, the refrigeration temperature values are set in ascending order as: the first refrigeration temperature value, the fourth refrigeration temperature value, the second refrigeration temperature value, the fifth refrigeration temperature value, the third refrigeration temperature value, and the sixth refrigeration temperature value.

[0048] As a preferred solution, the controller configured for the drying wardrobe is further configured to:

[0049] When it is detected that the heating drying mode is in progress, the current temperature of the cabinet body is detected in real time, the heating difference between the current temperature and the preset heating temperature is calculated, and the change trend of the calculated heating difference is judged within a preset heating period;

[0050] When the heating difference shows a decreasing trend, judge the current heating difference;

[0051] When the heating difference is greater than the preset first heating temperature value, set the maximum operating frequency of the heating drying mode to the preset first heating frequency; when the heating difference is not greater than the first heating temperature value and is greater than the preset second heating temperature, set the maximum operating frequency of the heating drying mode to the preset second heating frequency; when the heating difference is not greater than the second heating temperature value and is greater than the preset third heating temperature, set the maximum operating frequency of the heating drying mode to the preset third heating frequency; when the heating difference is not greater than the third heating temperature value, set the maximum operating frequency of the heating drying mode to the preset fourth heating frequency;

[0052] When the heating difference shows an increasing trend, judge the current heating difference;

[0053] When the heating difference is greater than the preset fourth heating temperature value, set the maximum operating frequency of the heating drying mode to the first heating frequency; when the heating difference is not greater than the fourth heating temperature value and is greater than the preset fifth heating temperature, set the maximum operating frequency of the heating drying mode to the second heating frequency; when the heating difference is not greater than the fifth heating temperature value and is greater than the preset sixth heating temperature, set the maximum operating frequency of the heating drying mode to the third heating frequency; when the heating difference is not greater than the sixth heating temperature value, set the maximum operating frequency of the heating drying mode to the fourth heating frequency;

[0054] Among them, the heating temperature values are set in ascending order as: the first heating temperature value, the fourth heating temperature value, the second heating temperature value, the fifth heating temperature value, the third heating temperature value, and the sixth heating temperature value.

[0055] Preferably, the controller configured in the dry wardrobe is further configured to:

[0056] In response to the dry - mode switching instruction, control the in - cabinet fan to switch the preset working wind speed of the current mode to the preset working wind speed of another mode, and at the same time control the compressor to control the current working frequency to decrease to the preset minimum working frequency at a preset change rate; and after maintaining for a third preset time, control the working frequency of the compressor to switch to the current working frequency, and at the same time control the four - way valve to switch the conduction state to complete the dry - mode switching.

[0057] Preferably, the outdoor unit further includes a throttling device, an inner pipe temperature sensor for monitoring the temperature of the indoor unit pipeline, an outer pipe temperature sensor for monitoring the temperature of the outdoor unit pipeline, and an exhaust temperature sensor for monitoring the temperature of the pipeline at the output end of the compressor;

[0058] The controller is further configured to perform safety protection according to the monitored temperature.

[0059] As a preferred solution, the indoor unit includes an inlet air humidity sensor and a temperature sensor disposed at the inlet end of the cabinet internal fan;

[0060] The controller performs safety protection according to the monitored temperature and humidity.

[0061] The present invention provides a dry wardrobe, which includes a cabinet body, an outdoor unit and an indoor unit; the indoor unit and the outdoor unit are connected by a pipeline for realizing heat transfer between the cabinet body and the outside, and controlling the switching between the refrigeration dry - clothing mode and the heating dry - clothing mode by controlling the heat transfer direction; the indoor unit includes a cabinet internal fan and an indoor evaporator; the inlet end of the cabinet internal fan is aligned with the air inlet of the cabinet body, the indoor evaporator is arranged at the inlet end of the cabinet internal fan, and the air outlet of the cabinet body is set to conduct unidirectionally outwards; the cabinet body is further provided with a baffle, and an air return port communicating the two is arranged between the air inlet and the air outlet, and the baffle switches between the air return port and the air inlet to control the cabinet body to realize the switching between the external circulation and the internal circulation. Clothes can be dried naturally and energy - savingly; also, the internal circulation and external circulation states of the dry wardrobe can be controlled by the baffle. Under the external circulation, the drying of clothes is accelerated; in the internal circulation state, it cooperates with the outdoor unit and the indoor unit to work, controls the heat transfer direction to realize the switching between the refrigeration dry - clothing mode and the heating dry - clothing mode in the internal circulation state, is isolated from the room air, intelligently selects the circulation mode, and does not affect the room temperature and humidity. Brief Description of the Drawings

[0062] Figure 1 is a schematic structural view of the cabinet body provided by an embodiment of the present invention;

[0063] Figure 2 is a schematic working state view of the cabinet body provided by an embodiment of the present invention;

[0064] Figure 3 is a schematic structural view of the indoor unit and the outdoor unit provided by an embodiment of the present invention;

[0065] Figure 4 is a schematic working state view of the indoor unit and the outdoor unit provided by an embodiment of the present invention;

[0066] Figure 5 is a schematic structural view of the cabinet body provided by another embodiment of the present invention;

[0067] Figure 6 is a schematic control flow view of the controller provided by an embodiment of the present invention;

[0068] Figure 7 is a schematic control flow view of the controller provided by another embodiment of the present invention;

[0069] Figure 8It is a schematic diagram of frequency control in the refrigeration drying mode provided by an embodiment of the present invention;

[0070] Figure 9 It is a schematic diagram of frequency control in the heating drying mode provided by an embodiment of the present invention;

[0071] Figure 10 It is a schematic diagram of the control timing of mode switching provided by another embodiment of the present invention. Detailed implementation manners

[0072] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0073] The present invention provides a drying wardrobe, which includes a cabinet body, an outdoor unit and an indoor unit;

[0074] The indoor unit is installed in the cabinet body, the outdoor unit is installed outdoors, and the indoor unit and the outdoor unit are connected by pipelines to realize heat transfer between the cabinet body and the outdoors, and control the switching between the refrigeration drying mode and the heating drying mode by controlling the heat transfer direction;

[0075] The indoor unit includes a blower inside the cabinet and an indoor evaporator;

[0076] The blower inside the cabinet and the indoor evaporator are arranged in the cabinet body. The air inlet end of the blower inside the cabinet is aligned with the air inlet of the cabinet body, the indoor evaporator is arranged at the air inlet end of the blower inside the cabinet, and the air outlet of the cabinet body is set to conduct unidirectionally outward;

[0077] The cabinet body is also provided with a baffle, and an air return port connecting the two is arranged between the air inlet and the air outlet. The baffle switches between the air return port and the air inlet to control the cabinet body to realize the switching between external circulation and internal circulation.

[0078] In the specific implementation of this embodiment, the drying wardrobe includes a cabinet body, an outdoor unit and an indoor unit;

[0079] The indoor unit is installed in the cabinet body to realize heat transfer between the cabinet body and the indoor unit; the outdoor unit is installed outdoors to realize heat transfer between the outdoor unit and the outdoors; the indoor unit and the outdoor unit are connected by pipelines to realize heat transfer between the cabinet body and the outdoors. Through the coordinated operation of the indoor unit and the outdoor unit, the refrigeration drying mode and the heating drying mode can be realized;

[0080] It should be noted that the specific structures of the indoor unit and the outdoor unit can adopt devices in the prior art that implement refrigeration and heating functions, such as air conditioners;

[0081] See Figure 1 , which is a schematic structural diagram of the cabinet provided by an embodiment of the present invention. The indoor unit includes a cabinet internal fan and an indoor evaporator;

[0082] The indoor unit and the evaporator are arranged in the cabinet. The air inlet of the cabinet is connected to the outside through a duct. The air inlet end of the cabinet internal fan is aligned with the air inlet. The indoor evaporator is arranged at the air inlet end of the cabinet internal fan, and can realize the heat exchange between the evaporator and the cabinet. The cabinet internal fan is used to send air into the cabinet, and a clothes drying device is also arranged in the cabinet to accelerate the drying of the clothes in the cabinet, and cooperate with the outdoor unit to realize the heat transfer between the cabinet and the outside, and accelerate the clothes drying speed of the dry clothes cabinet.

[0083] The positions of the air outlet and the air inlet configured on the cabinet are close. A return air outlet is arranged in the middle. The air outlet and the air inlet are connected through the return air outlet. The return air outlet and the air inlet form a vertical angle. A baffle is arranged between the air inlet and the return air outlet. The baffle rotates between the air inlet and the return air outlet through a rotating shaft to block different air outlets;

[0084] When referring to Figure 1 , when the baffle is in the position of the return air outlet, the return air outlet is blocked, and the dry clothes cabinet takes in air from the air inlet and discharges air from the air outlet. At this time, it is in the external circulation state;

[0085] Refer to Figure 2 , which is a schematic diagram of the working state of the cabinet provided by an embodiment of the present invention; when the baffle is in the position of the air inlet, the air inlet is blocked, and since the air outlet of the cabinet is set to conduct unidirectionally outward, the dry clothes cabinet is in a closed state at this time. At this time, the operation of the cabinet internal fan will only make the air circulate in the cabinet. At this time, it is in the external circulation state;

[0086] It should be noted that the structure of the unidirectionally arranged air outlet can adopt the commonly used unidirectional air outlet setting in the prior art.

[0087] The dry clothes cabinet provided by this embodiment can dry clothes naturally, which is very energy-saving; it can also control the internal circulation and external circulation states of the dry clothes cabinet through the baffle. Under the external circulation, the drying of clothes is accelerated; under the internal circulation state, it cooperates with the outdoor unit and the indoor unit to work, controls the direction of heat transfer to realize the switching between the refrigeration clothes drying mode and the heating clothes drying mode under the internal circulation state, is isolated from the air in the room (outside the cabinet), and intelligently selects the circulation mode without affecting the temperature and humidity of the room.

[0088] In another embodiment provided by the present invention, the outdoor unit includes a compressor, a liquid storage tank, a four-way valve, a condenser and an outdoor fan;

[0089] The output end of the liquid storage tank is connected to the input end of the compressor. The output end of the compressor is connected to the first end of a four-way valve through a pipeline. The second end of the four-way valve is connected to the first end of an indoor evaporator through a pipeline configured with a low-pressure valve. The second end of the indoor evaporator is connected to the first end of the condenser through a pipeline configured with a high-pressure valve. The second end of the condenser is connected to the third end of the four-way valve through a pipeline. The fourth end of the four-way valve is connected to the input end of the liquid storage tank through a pipeline. The air outlet end of the outdoor fan is aligned with the condenser.

[0090] The four-way valve controls the switching between a first conduction state where the first end is in communication with the second end and the third end is in communication with the fourth end, and a second conduction state where the first end is in communication with the third end and the second end is in communication with the fourth end, to control the switching between the cabinet heating and drying mode and the refrigeration and drying mode.

[0091] During the specific implementation of this embodiment, refer to Figure 3 , which is a schematic structural diagram of the indoor unit and the outdoor unit provided by an embodiment of the present invention. The drying cabinet includes an outdoor unit installed outdoors and an indoor unit installed on the cabinet indoors. The indoor unit and the outdoor unit are connected through pipelines for the transmission of refrigerant.

[0092] The outdoor unit includes a compressor, a liquid storage tank, a four-way valve, a condenser, and an outdoor fan.

[0093] The indoor unit includes a cabinet fan and an indoor evaporator.

[0094] The output end of the liquid storage tank is connected to the input end of the compressor. The output end of the compressor is connected to the first end D of the four-way valve through a pipeline. The second end E of the four-way valve is connected to the first end of the indoor evaporator through a pipeline configured with a low-pressure valve. The second end of the indoor evaporator is connected to the first end of the condenser through a pipeline configured with a high-pressure valve. The second end of the condenser is connected to the third end C of the four-way valve through a pipeline. The fourth end S of the four-way valve is connected to the input end of the liquid storage tank through a pipeline.

[0095] The outdoor fan blows air on the condenser to enable heat exchange between the condenser and the outdoor air. The indoor unit and the evaporator are arranged in the pipeline for heat exchange with the inside of the cabinet.

[0096] Refer to Figure 3 , when the four-way valve is in the first conduction state where the first end is in communication with the second end and the third end is in communication with the fourth end, the cabinet is in the heating and drying mode, and the heat collected by the outdoor condenser is transferred to the inside of the cabinet through the indoor evaporator for heating and drying.

[0097] Refer to Figure 4, which is a schematic diagram of the working states of the indoor unit and the outdoor unit provided by an embodiment of the present invention. When the four-way valve is in the second conduction state where the first end is in conduction with the third end and the second end is in conduction with the fourth end, the cabinet is in the refrigeration and drying mode. The low temperature generated by the outdoor condenser is transferred to the cabinet through the indoor evaporator for refrigeration and drying;

[0098] It should be noted that the indoor unit and the outdoor unit are also configured with corresponding dehumidification functions and ventilation functions to increase the functions of the dryer, which is roughly the same as the working principle of the indoor and outdoor units of an air conditioner in the prior art. The corresponding dehumidification functions and ventilation functions are generally enabled in the internal circulation mode to reduce the impact on the indoor temperature and humidity; and when the indoor temperature and humidity conditions are appropriate, that is, when the temperature and humidity are respectively within the preset corresponding ranges, the dehumidification function and ventilation function of the dryer can also be preferentially enabled in the external circulation mode to realize the functions of an indoor air conditioner, achieving multi-purpose with one machine and saving energy.

[0099] It should be noted that in this application, when the indoor temperature and humidity conditions are appropriate, that is, when the temperature and humidity are respectively within the preset corresponding ranges, the heating and drying mode and the heating and drying mode of the dryer can also be preferentially enabled in the external circulation mode to realize the functions of an indoor air conditioner, achieving multi-purpose with one machine and saving energy. By switching the conduction state of the four-way valve, the switching between the heating and drying mode and the refrigeration and drying mode can be conveniently and quickly realized. The outdoor unit collects outdoor heat to achieve the purpose of drying clothes, and does not directly generate heat itself, which is very energy-saving.

[0100] In another embodiment provided by the present invention, a cabinet temperature sensor and a cabinet humidity sensor are further configured inside the cabinet of the dry clothes cabinet.

[0101] In the specific implementation of this embodiment, refer to Figure 5 , which is a schematic diagram of the structure of the cabinet provided by another embodiment of the present invention;

[0102] The cabinet also includes a cabinet humidity temperature sensor and a cabinet humidity sensor, which are respectively used to monitor the temperature inside the cabinet and the temperature inside the cabinet.

[0103] In another embodiment provided by the present invention, the dry clothes cabinet is further configured with a controller, and the controller is used to control the dry clothes cabinet to switch between internal circulation and external circulation, and switch between the refrigeration and drying mode and the heating and drying mode according to the temperature obtained by the cabinet temperature sensor and the humidity obtained by the cabinet humidity sensor.

[0104] In the specific implementation of this embodiment, refer to Figure 5, the dry closet further includes an intelligent controller, which is used to control the position of the baffle according to the temperature obtained by the cabinet body temperature sensor and the humidity obtained by the cabinet body humidity sensor to control the dry closet to switch between internal circulation and external circulation, and control the conduction state of the four-way valve to switch between the refrigeration dry cleaning mode and the heating dry cleaning mode.

[0105] The controller controls the corresponding circulation mode and dry cleaning mode according to the temperature and humidity of the cabinet body to realize intelligent mode selection.

[0106] In another embodiment provided by the present invention, the controller configured for the dry closet is used to execute:

[0107] S01, in response to the dry cleaning mode start instruction, start the dry cleaning mode and control the blower fan in the cabinet to start working;

[0108] S02, determine whether it is true that the dry cleaning mode start time is greater than the first preset time and the time when the humidity of the cabinet body is less than the first preset humidity is not less than the second preset time;

[0109] If so, the dry cleaning mode ends, and the blower fan in the cabinet is controlled to stop working;

[0110] If not, execute step S03;

[0111] S03, determine whether the cabinet body is in internal circulation by detecting the position of the baffle;

[0112] If not, execute step S04;

[0113] If so, execute step S07;

[0114] S04, control the baffle to be in the return air outlet position through the stepper motor to perform external circulation, and control the blower fan in the cabinet to operate at a preset first power for a third preset time;

[0115] S05, determine whether the humidity in the cabinet is not less than the second preset humidity, and the second preset humidity is not less than the first preset humidity;

[0116] If so, return to step S04;

[0117] If not, execute step S07;

[0118] S06, control the baffle to be in the air outlet position through the stepper motor to perform internal circulation;

[0119] S07, determine whether the temperature in the cabinet is less than the first preset temperature;

[0120] If not, execute step S08;

[0121] If so, execute step S10;

[0122] S08, control the four-way valve to switch to the second conduction state where the first end is in communication with the third end and the second end is in communication with the fourth end, and control the outdoor unit and the indoor unit to operate with the refrigeration power corresponding to the second preset temperature, and enter the refrigeration drying mode;

[0123] S09, determine whether the humidity in the cabinet is less than the third preset humidity or the temperature in the cabinet is not greater than the second preset temperature; the third preset humidity is between the first preset humidity and the second preset humidity;

[0124] If yes, execute step S10;

[0125] If not, return to step S08;

[0126] S10, control the four-way valve to switch to the first conduction state where the first end is in communication with the second end and the third end is in communication with the fourth end, and control the outdoor unit and the indoor unit to operate with the heating power corresponding to the fourth preset temperature, and enter the heating drying mode, where the fourth preset temperature is greater than the second preset temperature;

[0127] S11, determine whether the humidity in the cabinet is greater than the fourth preset humidity or the temperature in the cabinet is not less than the fourth preset temperature;

[0128] If yes, execute step S08;

[0129] If not, return to step S10;

[0130] The controller is further configured to execute:

[0131] Determine whether the dry drying mode start time is greater than the first preset time and the time when the humidity of the cabinet body is less than the first preset humidity is not less than the second preset time;

[0132] If yes, the dry drying mode ends, and control the outdoor unit and the indoor unit to stop operating.

[0133] When specifically implementing this embodiment, refer to Figure 6 , which is a schematic diagram of the control process of the controller provided by the embodiment of the present invention;

[0134] The control process of the controller specifically includes:

[0135] S01, the dry drying mode starts, that is, in response to the dry drying mode start instruction, the dry drying mode is started, and control the blower in the cabinet to start working;

[0136] S02, determine whether the drying time is greater than T1 or the humidity RH is less than 40% for more than 30 minutes; that is, determine whether the start time of the drying mode is greater than the first preset time T1, and whether the time when the humidity of the cabinet is less than the first preset humidity of 40% is not less than the second preset time of 30 minutes;

[0137] If so, the drying mode ends, that is, the fan in the control cabinet stops working;

[0138] If not, execute step S03;

[0139] S03, that is, determine whether it is an internal circulation, that is, determine whether the cabinet is in an internal circulation by detecting the position of the baffle;

[0140] If not, execute step S04;

[0141] If so, execute step S07;

[0142] S04, the left and right swing stepper motors are set to the external circulation position, and the internal fan runs at high speed for 3 minutes. That is, by controlling the stepper motor, the baffle is set at the return air outlet position to perform external circulation, and the cabinet fan is controlled to run at a preset first power for a third preset time of 3 minutes;

[0143] S05, determine whether the humidity RH≥70% holds, that is, determine whether the humidity in the cabinet is not less than the second preset humidity of 70%,

[0144] If so, return to step S04;

[0145] If not, execute step S07;

[0146] S06, internal circulation, the left and right swing stepper motors are set to the internal circulation position. That is, by controlling the stepper motor, the baffle is set at the air outlet position to perform internal circulation;

[0147] S07, determine whether the temperature rt in the cabinet is less than 25°C, that is, determine whether the temperature in the cabinet is less than the first preset temperature, and only judge once in the cycle;

[0148] If not, execute step S08;

[0149] If so, execute step S10;

[0150] S08, enter the refrigeration drying mode with the temperature position st = 16 corresponding power. That is, correspondingly control the four-way valve to switch to the second conduction state where the first end is conducted with the third end and the second end is conducted with the fourth end, and control the outdoor unit and the indoor unit to work with the refrigeration power corresponding to the second preset temperature position st = 16 to enter the refrigeration drying mode;

[0151] S09, determine whether RH < 50% or rt ≤ st holds, that is, determine whether the humidity RH inside the cabinet is less than the third preset humidity of 50%, or whether the temperature rt inside the cabinet is not greater than the second preset temperature st = 16;

[0152] If so, execute step S10;

[0153] If not, return to step S08;

[0154] S10, enter the heating and drying mode with the power corresponding to the temperature bit st = 38, that is, control the four-way valve to switch to the first conduction state where the first end is in conduction with the second end and the third end is in conduction with the fourth end, control the outdoor unit and the indoor unit to work with the heating power corresponding to the fourth preset temperature, and enter the heating and drying mode, where the fourth preset temperature is greater than the second preset temperature;

[0155] S11, determine whether RH ≥ 90% or rt ≥ st holds, that is, determine whether the humidity inside the cabinet is greater than the fourth preset humidity, or whether the temperature inside the cabinet is not less than the fourth preset temperature;

[0156] If so, execute step S08;

[0157] If not, return to step S10;

[0158] It should be noted that in this embodiment, specific temperatures and humidities are used to illustrate the implementation process of the solution. In other embodiments, the temperature and humidity settings can be adjusted according to actual situations. The second preset humidity is not less than the first preset humidity; the third preset humidity is between the first preset humidity and the second preset humidity; the implementation process is similar and will not be elaborated here.

[0159] See Figure 7 , which is a schematic diagram of the control process of the controller provided by another embodiment of the present invention; in this embodiment, when the controller is working specifically, it determines the stop working time of the dry wardrobe by monitoring the working time and humidity RH of the dry wardrobe;

[0160] That is, after the drying mode starts, continuously monitor the drying time T and humidity RH. According to the temperature and humidity of the cabinet body and the set temperature range by the controller; when T = 8H or the humidity RH < 40% lasts for more than 30 minutes, stop the machine, that is, when the drying time reaches the set upper limit of 8 hours or the humidity drops below the specified range and lasts for a period of time, that is, the dry wardrobe can dry the clothes inside the cabinet, and at this time, control the dry wardrobe to stop working and control the outdoor unit and the indoor unit to stop working.

[0161] The controller monitors the temperature and humidity, controls the execution of the outer circulation or the inner circulation at different temperatures, and only activates the refrigeration drying mode and the heating drying mode after the inner circulation is turned on. It controls the heat transfer direction to achieve the switching between the refrigeration drying mode and the heating drying mode in the inner circulation state, isolates from the air in the room (outside the cabinet), intelligently selects the circulation mode, and does not affect the room temperature and humidity.

[0162] In another embodiment provided by the present invention, the controller configured for the dry wardrobe is further used for:

[0163] When it is detected that the refrigeration drying mode is in operation, it continuously detects the current temperature of the cabinet body, calculates the refrigeration difference between the current temperature and the preset refrigeration temperature, and judges the change trend of the calculated refrigeration difference within a preset refrigeration period;

[0164] When the refrigeration difference shows a decreasing trend, judge the current refrigeration difference;

[0165] When the refrigeration difference is greater than the preset first refrigeration temperature value, set the maximum operating frequency of the refrigeration drying mode to the preset first refrigeration frequency; when the refrigeration difference is not greater than the first refrigeration temperature value and is greater than the preset second refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset second refrigeration frequency; when the refrigeration difference is not greater than the second refrigeration temperature value and is greater than the preset third refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset third refrigeration frequency; when the refrigeration difference is not greater than the third refrigeration temperature value and is greater than the preset fourth refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset fourth refrigeration frequency;

[0166] When the refrigeration difference shows an increasing trend, judge the current refrigeration difference;

[0167] When the refrigeration difference is greater than the preset fifth refrigeration temperature value, set the maximum operating frequency of the refrigeration drying mode to the preset fifth refrigeration frequency; when the refrigeration difference is not greater than the fifth refrigeration temperature value and is greater than the preset sixth refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset sixth refrigeration frequency; when the refrigeration difference is not greater than the sixth refrigeration temperature value and is greater than the preset seventh refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset seventh refrigeration frequency; when the refrigeration difference is not greater than the seventh refrigeration temperature value and is greater than the preset eighth refrigeration temperature, set the maximum operating frequency of the refrigeration drying mode to the preset eighth refrigeration frequency;

[0168] Among them, the refrigeration powers are set from large to small in sequence as: the first refrigeration power, the fifth refrigeration power, the second refrigeration power, the sixth refrigeration power, the third refrigeration power, the seventh refrigeration power, the fourth refrigeration power, and the eighth refrigeration power; the refrigeration temperature values are set from small to large in sequence as: the first refrigeration temperature value, the fifth refrigeration temperature value, the second refrigeration temperature value, the sixth refrigeration temperature value, the third refrigeration temperature value, the seventh refrigeration temperature value, the fourth refrigeration temperature value, and the eighth refrigeration temperature value.

[0169] During the specific implementation of this embodiment, refer to Figure 8 , which is a schematic diagram of frequency control in the refrigeration and drying mode provided by the embodiment of the present invention; in the refrigeration and drying mode: the current temperature rt of the cabinet body is detected in real time, and the refrigeration difference ΔTc between the current temperature rt and the preset refrigeration temperature st is calculated, and the change trend of the calculated refrigeration difference is judged within the preset refrigeration period;

[0170] When the refrigeration difference ΔTc between the current temperature rt in the cabinet and the refrigeration temperature st shows a trend of decreasing temperature difference, ΔTc > 15°C is area A, and the maximum operating frequency is at most FC4; 10°C < ΔTc ≤ 15°C is area B, and the maximum operating frequency is at most FC3; 5°C < ΔTc ≤ 10°C is area C, and the maximum operating frequency is at most FC2; ΔTc ≤ 5°C is area D, and the maximum operating frequency is at most FC1;

[0171] When the refrigeration difference ΔTc between the current temperature rt in the cabinet and the refrigeration temperature st shows a trend of increasing temperature difference, ΔTc > 13°C is area A, and the maximum operating frequency is at most FC4, 8 < ΔTc ≤ 13°C is area B, and the maximum operating frequency is at most FC3, 3 < ΔTc ≤ 8°C is area C, and the maximum operating frequency is at most FC2, ΔTc ≤ 3°C is area D, and the maximum operating frequency is at most FC1;

[0172] It should be noted that in this embodiment, the first refrigeration temperature value, the fourth refrigeration temperature value, the second refrigeration temperature value, the fifth refrigeration temperature value, the third refrigeration temperature value, and the sixth refrigeration temperature value are set as 15°C, 13°C, 10°C, 8°C, 5°C, and 3°C in sequence to illustrate the control process of this solution with specific temperatures. In other embodiments, the temperature can be set to other values, as long as the refrigeration temperature values are set from small to large in sequence as: the first refrigeration temperature value, the fourth refrigeration temperature value, the second refrigeration temperature value, the fifth refrigeration temperature value, the third refrigeration temperature value, and the sixth refrigeration temperature value, and the control process is similar and will not be elaborated here.

[0173] By setting different temperature differences under different frequency controls based on different temperature change trends in the refrigeration and drying mode, the working frequency can be adjusted more stably based on temperature changes in the refrigeration and drying mode.

[0174] In another embodiment provided by the present invention, the controller configured for the dry wardrobe is further configured to:

[0175] When it is detected that the heating and drying mode is in progress, the current temperature of the cabinet body is detected in real time, the heating difference between the current temperature and the preset heating temperature is calculated, and the change trend of the calculated heating difference is judged within the preset heating period;

[0176] When the heating difference shows a decreasing trend, the current heating difference is judged;

[0177] When the heating difference is greater than the preset first heating temperature value, the maximum operating frequency of the heating and drying mode is set to the preset first heating frequency; when the heating difference is not greater than the first heating temperature value and is greater than the preset second heating temperature, the maximum operating frequency of the heating and drying mode is set to the preset second heating frequency; when the heating difference is not greater than the second heating temperature value and is greater than the preset third heating temperature, the maximum operating frequency of the heating and drying mode is set to the preset third heating frequency; when the heating difference is not greater than the third heating temperature value, the maximum operating frequency of the heating and drying mode is set to the preset fourth heating frequency;

[0178] When the heating difference shows an increasing trend, the current heating difference is judged;

[0179] When the heating difference is greater than the preset fourth heating temperature value, the maximum operating frequency of the heating and drying mode is set to the first heating frequency; when the heating difference is not greater than the fourth heating temperature value and is greater than the preset fifth heating temperature, the maximum operating frequency of the heating and drying mode is set to the second heating frequency; when the heating difference is not greater than the fifth heating temperature value and is greater than the preset sixth heating temperature, the maximum operating frequency of the heating and drying mode is set to the third heating frequency; when the heating difference is not greater than the sixth heating temperature value, the maximum operating frequency of the heating and drying mode is set to the fourth heating frequency;

[0180] Wherein, the heating temperature values are set in ascending order as: the first heating temperature value, the fourth heating temperature value, the second heating temperature value, the fifth heating temperature value, the third heating temperature value, and the sixth heating temperature value.

[0181] In another embodiment provided by the present invention, refer to Figure 9 , which is a schematic diagram of frequency control in the heating and drying mode provided by the embodiment of the present invention;

[0182] In the heating and drying mode: the current temperature rt of the cabinet body is detected in real time, the heating difference ΔTh between the current temperature rt and the preset heating temperature st is calculated, and the change trend of the calculated heating difference is judged within the preset heating period;

[0183] When the heating temperature difference ΔTh between the current temperature rt in the cabinet and the heating temperature st shows a trend of increasing temperature difference, ΔTh > 15°C is area A, and the maximum operating frequency is at most FH4; 10 < °ΔTh ≤ 15°C is area B, and the maximum operating frequency is at most FH3; 5°C < ΔTh ≤ 10°C is area C, and the maximum operating frequency is at most FH2; ΔTh ≤ 5°C is area D, and the maximum operating frequency is at most FH1;

[0184] When the heating temperature difference ΔTc between the current temperature rt in the cabinet and the heating temperature st shows a trend of increasing temperature difference, ΔTh > 13°C is area A, and the maximum operating frequency is at most FH4; 8°C < ΔTh ≤ 13°C is area B, and the maximum operating frequency is at most FH3; 3°C < ΔTh ≤ 8°C is area C, and the maximum operating frequency is at most FH2; ΔTh ≤ 3°C is area D, and the maximum operating frequency is at most FH1;

[0185] It should be noted that in this embodiment, the first heating temperature value, the fourth heating temperature value, the second heating temperature value, the fifth heating temperature value, the third heating temperature value, and the sixth heating temperature value are set to 15°C, 13°C, 10°C, 8°C, 5°C, and 3°C in sequence to illustrate the control process of this solution with specific temperatures. In other embodiments, the temperature can be set to other values, as long as the heating temperature values are set in ascending order as: the first heating temperature value, the fourth heating temperature value, the second heating temperature value, the fifth heating temperature value, the third heating temperature value, and the sixth heating temperature value. The control process is similar and will not be elaborated here.

[0186] By setting different temperature differences under different frequency controls based on different temperature change trends in the heating and drying mode, the working frequency can be adjusted more stably based on temperature changes in the heating and drying mode.

[0187] In another embodiment provided by the present invention, the controller configured in the dry wardrobe is further configured to:

[0188] In response to the dry - cleaning mode switching instruction, control the blower in the cabinet to switch the preset working wind speed of the current mode to the working wind speed preset for another mode, and at the same time control the compressor to control the current working frequency to drop to the preset minimum working frequency at a preset change rate; and after maintaining for the third preset time, control the working frequency of the compressor to switch to the current working frequency, and at the same time control the four - way valve to switch the conduction state to complete the dry - cleaning mode switching.

[0189] When specifically implementing this embodiment, refer to Figure 10 , which is a schematic diagram of the control timing of mode switching provided by another embodiment of the present invention;

[0190] When the mode is running normally, the internal fan operates at the preset working wind speed of the current mode, the external fan operates at the preset working wind speed of the current mode, the compressor cabinet operates at the current working frequency of the current mode, and the four-way valve is in the conducting state of the current mode;

[0191] In response to the drying mode switching instruction, the internal fan immediately switches the wind speed, that is, switches the preset working wind speed of the current mode to the preset working wind speed of another mode, and the working wind speed of the external fan remains unchanged; at the same time, the compressor drops to the lowest frequency, that is, the compressor reduces the working frequency to the lowest working frequency at a fixed change rate;

[0192] After the compressor frequency drops to the lowest frequency and maintains for a time Tc = 30, the compressor working frequency switches to the current working frequency, and at the same time the four-way valve switches to the conducting state corresponding to another mode, completing a complete drying mode switch, and repeating until the next switching cycle; the timing process of the next drying mode switch is the same.

[0193] It should be noted that in this embodiment, the drying mode switch includes two types: switching from the refrigeration drying mode to the heating drying mode and switching from the heating drying mode to the refrigeration drying mode, and the switching timing control is the same.

[0194] By controlling the switching timing of the internal fan, compressor and four-way valve, the stability problem caused by the sudden change of the power of the internal and external fans during the mode switching is avoided, and the working stability of the drying cabinet is improved.

[0195] In another embodiment provided by the present invention, the outdoor unit further includes a throttling device, an internal pipe temperature sensor for monitoring the temperature of the indoor unit pipeline, an external pipe temperature sensor for monitoring the temperature of the outdoor unit pipeline, and an exhaust temperature sensor for monitoring the temperature of the pipeline at the output end of the compressor;

[0196] The controller is further configured to perform safety protection according to the monitored temperature.

[0197] When specifically implementing this embodiment, see Figure 4 , the outdoor unit further includes a throttling device, the throttling device is between the high-pressure valve and the condenser, and an internal pipe temperature sensor for monitoring the internal pipe temperature is also configured at a position of the indoor unit close to the indoor evaporator, and an external pipe temperature sensor for monitoring the external pipe temperature is also configured at a position of the outdoor unit close to the condenser. An exhaust temperature sensor is also configured at the output end of the compressor for monitoring the exhaust temperature;

[0198] The controller compares the internal pipe temperature monitored by the internal pipe temperature sensor with the set safety temperature, compares the external pipe temperature monitored by the external pipe temperature sensor with the safety temperature, and compares the exhaust temperature monitored by the exhaust temperature sensor with the safety temperature, and sets corresponding safety protection functions to ensure the safety performance of the pipeline.

[0199] In another embodiment provided by the present invention, the indoor unit includes an inlet air humidity sensor and a temperature sensor disposed at the inlet end of the blower in the cabinet;

[0200] The controller performs safety protection according to the monitored temperature and humidity.

[0201] When specifically implementing this embodiment, refer to Figure 5 , the cabinet further includes an inlet air humidity sensor and a temperature sensor for monitoring the temperature and humidity of the air inlet.

[0202] The controller can also compare the humidity obtained by the inlet air humidity sensor with the safe humidity, and compare the temperature through the temperature sensor with the preset safe temperature, so as to perform safety protection on the blower in the cabinet and the indoor evaporator, improve the safety performance of the blower in the cabinet and the indoor evaporator, and ensure the stable operation of the dry wardrobe.

[0203] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A dry wardrobe, characterized in that, The dry wardrobe includes a cabinet body, an outdoor unit, and an indoor unit; The indoor unit is installed inside the cabinet body, the outdoor unit is installed outdoors, and the indoor unit and the outdoor unit are connected by pipes to achieve heat transfer between the cabinet body and the outdoors, and the switching between the refrigeration dry - clothes mode and the heating dry - clothes mode is controlled by controlling the heat transfer direction; The indoor unit includes a cabinet - internal fan and an indoor evaporator; The air - inlet end of the cabinet - internal fan is aligned with the air - inlet of the cabinet body, the indoor evaporator is arranged at the air - inlet end of the cabinet - internal fan, and the air - outlet of the cabinet body is set to conduct unidirectionally outwards; The cabinet body is also provided with a baffle, and an air - return port connecting the two is arranged between the air - inlet and the air - outlet. The baffle switches between the air - return port and the air - inlet to control the cabinet body to realize the switching between the external circulation and the internal circulation; The outdoor unit includes a compressor, a liquid storage tank, a four - way valve, a condenser, and an outdoor fan; The output end of the liquid storage tank is connected to the input end of the compressor, the output end of the compressor is connected to the first end of the four - way valve through a pipe, the second end of the four - way valve is connected to the first end of the indoor evaporator through a pipe equipped with a low - pressure valve, the second end of the indoor evaporator is connected to the first end of the condenser through a pipe equipped with a high - pressure valve, the second end of the condenser is connected to the third end of the four - way valve through a pipe, the fourth end of the four - way valve is connected to the input end of the liquid storage tank through a pipe, and the air - outlet end of the outdoor fan is aligned with the condenser; The four - way valve controls the switching between the first conduction state where the first end is in communication with the second end and the third end is in communication with the fourth end, and the second conduction state where the first end is in communication with the third end and the second end is in communication with the fourth end, to control the switching between the heating dry - clothes mode and the refrigeration dry - clothes mode of the cabinet body; Inside the cabinet body of the dry wardrobe, a cabinet - body temperature sensor and a cabinet - body humidity sensor are also arranged; The dry wardrobe is also provided with a controller, and the controller is used to control the dry wardrobe to switch between the internal circulation and the external circulation, and to switch between the refrigeration dry - clothes mode and the heating dry - clothes mode according to the temperature obtained by the cabinet - body temperature sensor and the humidity obtained by the cabinet - body humidity sensor; The controller configured for the dry wardrobe is used to execute: S01, in response to the dry - clothes mode start instruction, start the dry - clothes mode and control the cabinet - internal fan to start working; S02, determine whether it is true that the dry - clothes mode start time is greater than a first preset time, and the time when the humidity of the cabinet body is less than a first preset humidity is not less than a second preset time; If so, end the dry - clothes mode and control the cabinet - internal fan to stop working; If not, execute step S03; S03, judge whether the cabinet body is in the internal circulation by detecting the position of the baffle; If not, execute step S04; If so, execute step S07; S04, control the baffle to be in the air - return port position through a stepping motor to perform external circulation, and control the cabinet - internal fan to operate at a preset first power for a third preset time; S05, judge whether the humidity inside the cabinet is not less than a second preset humidity, and the second preset humidity is not less than the first preset humidity; If so, return to step S04; If not, execute step S07; S06, control the baffle to be in the air outlet position through controlling a stepper motor to perform internal circulation; S07, determine whether the temperature inside the cabinet is less than a first preset temperature; If not, execute step S08; If so, execute step S10; S08, control the four-way valve to switch to a second conduction state where the first end is conducted with the third end and the second end is conducted with the fourth end, and control the outdoor unit and the indoor unit to operate at a refrigeration power corresponding to a second preset temperature to enter a refrigeration dry - clothes mode; S09, determine whether the humidity inside the cabinet is less than a third preset humidity, or whether the temperature inside the cabinet is not greater than the second preset temperature holds; the third preset humidity is between the first preset humidity and the second preset humidity; If so, execute step S10; If not, return to step S08; S10, control the four-way valve to switch to a first conduction state where the first end is conducted with the second end and the third end is conducted with the fourth end, and control the outdoor unit and the indoor unit to operate at a heating power corresponding to a fourth preset temperature to enter a heating dry - clothes mode, the fourth preset temperature is greater than the second preset temperature; S11, determine whether the humidity inside the cabinet is greater than a fourth preset humidity, or whether the temperature inside the cabinet is not less than the fourth preset temperature holds; If so, execute step S08; If not, return to step S10; The controller is further configured to execute: Determine whether the dry - clothes mode start time is greater than the first preset time and the time when the humidity of the cabinet is less than the first preset humidity is not less than the second preset time holds; If so, end the dry - clothes mode and control the outdoor unit and the indoor unit to stop operating.

2. The dry wardrobe according to claim 1, characterized in that,The controller configured for the dry - clothes cabinet is further configured to: When it is detected that the refrigeration dry - clothes mode is in progress, continuously detect the current temperature of the cabinet body, calculate the refrigeration difference between the current temperature and the preset refrigeration temperature, and judge the change trend of the calculated refrigeration difference within a preset refrigeration period; When the refrigeration difference shows a decreasing trend, judge the current refrigeration difference; When the refrigeration difference is greater than a preset first refrigeration temperature value, set the maximum operating frequency of the refrigeration dry - clothes mode to a preset first refrigeration frequency; When the refrigeration difference is not greater than the first refrigeration temperature value and is greater than a preset second refrigeration temperature value, set the maximum operating frequency of the refrigeration dry - clothes mode to a preset second refrigeration frequency; When the refrigeration difference is not greater than the second refrigeration temperature value and is greater than a preset third refrigeration temperature value, set the maximum operating frequency of the refrigeration dry - clothes mode to a preset third refrigeration frequency; When the refrigeration difference is not greater than the third refrigeration temperature value, set the maximum operating frequency of the refrigeration dry - clothes mode to a preset fourth refrigeration frequency; When the refrigeration difference shows an increasing trend, judge the current refrigeration difference; When the refrigeration difference is greater than a preset fourth refrigeration temperature value, set the maximum operating frequency of the refrigeration dry - clothes mode to the first refrigeration frequency; When the refrigeration difference is not greater than the fourth refrigeration temperature value and is greater than the preset fifth refrigeration temperature value, set the maximum operating frequency of the refrigeration drying mode to the second refrigeration frequency; when the refrigeration difference is not greater than the fifth refrigeration temperature value and is greater than the preset sixth refrigeration temperature value, set the maximum operating frequency of the refrigeration drying mode to the third refrigeration frequency; when the refrigeration difference is not greater than the sixth refrigeration temperature value, set the maximum operating frequency of the refrigeration drying mode to the fourth refrigeration frequency; Among them, the refrigeration temperature values are set in descending order as: the first refrigeration temperature value, the fourth refrigeration temperature value, the second refrigeration temperature value, the fifth refrigeration temperature value, the third refrigeration temperature value, and the sixth refrigeration temperature value.

3. The dry wardrobe according to claim 1, wherein, The controller configured for the dry wardrobe is further configured to: When it is detected that the heating drying mode is in progress, continuously detect the current temperature of the cabinet body, calculate the heating difference between the current temperature and the preset heating temperature, and judge the change trend of the calculated heating difference within the preset heating period; When the heating difference shows a decreasing trend, judge the current heating difference; When the heating difference is greater than the preset first heating temperature value, set the maximum operating frequency of the heating drying mode to the preset first heating frequency; When the heating difference is not greater than the first heating temperature value and is greater than the preset second heating temperature value, set the maximum operating frequency of the heating drying mode to the preset second heating frequency; When the heating difference is not greater than the second heating temperature value and is greater than the preset third heating temperature value, set the maximum operating frequency of the heating drying mode to the preset third heating frequency; when the heating difference is not greater than the third heating temperature value, set the maximum operating frequency of the heating drying mode to the preset fourth heating frequency; When the heating difference shows an increasing trend, judge the current heating difference; When the heating difference is greater than the preset fourth heating temperature value, set the maximum operating frequency of the heating drying mode to the first heating frequency; When the heating difference is not greater than the fourth heating temperature value and is greater than the preset fifth heating temperature value, set the maximum operating frequency of the heating drying mode to the second heating frequency; when the heating difference is not greater than the fifth heating temperature value and is greater than the preset sixth heating temperature value, set the maximum operating frequency of the heating drying mode to the third heating frequency; when the heating difference is not greater than the sixth heating temperature value, set the maximum operating frequency of the heating drying mode to the fourth heating frequency; Among them, the heating temperature values are set in descending order as: the first heating temperature value, the fourth heating temperature value, the second heating temperature value, the fifth heating temperature value, the third heating temperature value, and the sixth heating temperature value.

4. The dry wardrobe according to claim 1, wherein, The controller configured for the dry wardrobe is further configured to: In response to the dry - mode switching instruction, control the blower in the cabinet to switch the preset working wind speed of the current mode to the preset working wind speed of another mode, and at the same time control the compressor to reduce the current working frequency to the preset minimum working frequency at a preset change rate; and after maintaining for a third preset time, control the working frequency of the compressor to switch to the current working frequency, and at the same time control the four - way valve to switch the conduction state to complete the dry - mode switching.

5. The dry wardrobe according to claim 1, wherein, The outdoor unit further includes a throttling device, an internal pipe temperature sensor for monitoring the temperature of the indoor unit pipeline, an external pipe temperature sensor for monitoring the temperature of the outdoor unit pipeline, and an exhaust temperature sensor for monitoring the temperature of the pipeline at the output end of the compressor; The controller is further configured to perform safety protection according to the monitored temperature.

6. The dry wardrobe according to claim 1, wherein, The indoor unit includes an inlet air humidity sensor and a temperature sensor arranged at the inlet end of the blower in the cabinet; The controller performs safety protection according to the monitored temperature and humidity.

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