Heat pump clothes dryer, cooling fan control method and device and medium

Abstract

The invention relates to a heat pump clothes dryer, a cooling fan control method and device and a medium. The method is applied to the heat pump clothes dryer, the heat pump clothes dryer comprises a compressor and a cooling fan, the method comprises the steps that a clothes drying request of a user terminal is obtained, the heat pump clothes dryer is started according to the clothes drying request, and the clothes drying request comprises clothes information; the exhaust temperature of the compressor is obtained according to a preset period; and if the exhaust temperature is larger than the preset temperature, the cooling fan is controlled to operate based on the clothes information. According to the method, on the basis that starting of the cooling fan is controlled only through temperature, the judgment condition of the clothes drying load is added, different action logics and operation frequencies of the cooling fan are adopted according to different clothes drying loads and different operation environments, the problem of fan over-blowing is effectively solved, and energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of intelligent electrical appliances, and specifically relates to a heat pump clothes dryer and a cooling fan control method, device and medium. Background Art

[0002] With the advancement of clothing processing technology and the improvement of people's quality of life, clothes dryers have gradually become an indispensable smart home appliance in people's daily lives. Among them, heat pump clothes dryers are currently very popular. Heat pump clothes dryers generate water vapor during the drying process. Due to the temperature difference inside the device, the water vapor condenses inside the device, forming water droplets.

[0003] The existing technology mainly draws outside air into the installation chamber of the compressor by adding a cooling fan, which not only cools the compressor to reduce the temperature difference inside the equipment, but also promotes the flow of air inside the equipment to avoid condensation of water vapor.

[0004] However, during the drying process, it is impossible to accurately determine the water vapor content generated inside the device, resulting in low efficiency of the cooling fan. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, that is, to facilitate accurate control of the operating state of the cooling fan according to the internal conditions of the equipment during the operation of the heat pump drying equipment and improve efficiency, the present application provides a heat pump dryer and a cooling fan control method, device and medium.

[0006] In a first aspect, the present application provides a cooling fan control method, which is applied to a heat pump dryer, wherein the heat pump dryer includes a compressor and a cooling fan, and the method includes:

[0007] obtaining a clothes drying request from a user terminal, and starting the heat pump dryer according to the clothes drying request, wherein the clothes drying request includes clothes information;

[0008] Obtaining the exhaust temperature of the compressor according to a preset period;

[0009] If the exhaust temperature is greater than a preset temperature, the cooling fan is controlled to operate based on the clothing information.

[0010] In a possible implementation, controlling the cooling fan to operate based on the clothing information includes:

[0011] determining a drying load of the heat pump dryer according to the clothing information;

[0012] When the clothes drying load is greater than or equal to a preset load, controlling the cooling fan to operate according to a first start-stop ratio;

[0013] When the clothes drying load is less than a preset load, the cooling fan is controlled to operate according to a second start-stop ratio, wherein the first start-stop ratio is greater than the second start-stop ratio.

[0014] In a possible implementation, determining the drying load of the heat pump dryer according to the clothing information includes:

[0015] Obtaining the number of clothes in the clothing information, and determining whether the number of clothes is greater than a preset number;

[0016] If so, determining that the drying load of the heat pump dryer is greater than or equal to a preset load;

[0017] If not, it is determined that the drying load of the heat pump dryer is less than a preset load.

[0018] In a possible implementation, determining the drying load of the heat pump dryer according to the clothing information includes:

[0019] Obtaining the original weight of the clothes from the clothes information, obtaining the current weight of the clothes and the remaining drying time;

[0020] determining a weight difference based on the current weight of the laundry and the original weight of the laundry, and calculating a ratio of the weight difference to the remaining drying time;

[0021] When the ratio is greater than or equal to a preset ratio, determining that the drying load of the heat pump dryer is greater than or equal to a preset load;

[0022] When the ratio is less than a preset ratio, it is determined that the drying load of the heat pump dryer is less than a preset load.

[0023] In a possible implementation, controlling the cooling fan to operate according to the first rotation-stop ratio / the second rotation-stop ratio includes:

[0024] Obtaining a remaining drying time, and determining a total rotation time and a total stop time of the cooling fan based on the remaining drying time and the first start-stop ratio / the second start-stop ratio, wherein the total rotation time and the total stop time are positive integers;

[0025] Obtain a first divisor set of the total rotation duration and a second divisor set of the total stop duration, and calculate an intersection of the first divisor set and the second divisor set;

[0026] The rotation unit duration and the stop unit duration of the cooling fan are determined according to the intersection and the first rotation-stop ratio / the second rotation-stop ratio, and the cooling fan is controlled to stop running for the stop unit duration every time it runs for the rotation unit duration.

[0027] In a possible implementation, determining the rotation unit duration and the stop unit duration of the cooling fan according to the intersection and the first rotation-stop ratio / the second rotation-stop ratio includes:

[0028] Determine whether the intersection contains 2;

[0029] If the intersection includes 2, the rotation unit duration is determined to be 2, and the stop unit duration is determined according to the rotation unit duration and the first stop-start ratio / the second stop-start ratio;

[0030] If the intersection does not include 2, the rotation unit duration is determined to be 1, and the stop unit duration is determined according to the rotation unit duration and the first rotation-stop ratio / the second rotation-stop ratio.

[0031] In a possible implementation, the method further includes:

[0032] If the exhaust temperature is less than or equal to a preset temperature, the cooling fan is controlled to be in an off state.

[0033] In a second aspect, the present application provides a cooling fan control device, which is applied to a heat pump dryer. The heat pump dryer includes a compressor and a cooling fan. The device includes:

[0034] a first processing module, configured to obtain a clothes drying request from a user terminal and start the heat pump dryer according to the clothes drying request, wherein the clothes drying request includes clothes information;

[0035] A second processing module, configured to obtain the exhaust temperature of the compressor according to a preset period;

[0036] The third processing module is configured to control the cooling fan to operate based on the clothing information if the exhaust temperature is greater than a preset temperature.

[0037] In a third aspect, the present application provides a heat pump dryer, the heat pump dryer comprising at least one processor, a memory, a compressor, and a cooling fan;

[0038] The compressor is used to compress the refrigerant;

[0039] The cooling fan is used to cool the compressor;

[0040] The cooling fan is connected to the at least one processor;

[0041] The memory stores computer-executable instructions;

[0042] At least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor performs the cooling fan control method as described above.

[0043] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the cooling fan control method described above when executed by a processor.

[0044] The heat pump dryer and cooling fan control method, device and medium provided in the present application obtain a drying request from a user terminal and start the heat pump dryer according to the drying request, wherein the drying request includes clothing information; obtain the exhaust temperature of the compressor according to a preset cycle; if the exhaust temperature is greater than the preset temperature, control the operation of the cooling fan based on the clothing information.

[0045] In the above method, the water vapor situation in the heat pump dryer is roughly estimated through the exhaust temperature of the compressor and the clothing information, and then the operating logic and operating frequency of the cooling fan are determined accordingly to avoid the cooling fan from running at a high frequency when less water vapor is generated, causing the system temperature to drop and the drying time to be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0047] Figure 1 A schematic diagram of an application scenario of a heat pump dryer provided in an embodiment of the present application;

[0048] Figure 2 A cooling fan control method according to an embodiment of the present invention Figure 1 ;

[0049] Figure 3 A cooling fan control method according to an embodiment of the present invention Figure 2 ;

[0050] Figure 4 A cooling fan control method according to an embodiment of the present invention Figure 3 ;

[0051] Figure 5 A schematic structural diagram of a cooling fan control device provided by an embodiment of the present invention;

[0052] Figure 6 A hardware schematic diagram of a heat pump clothes dryer provided in an embodiment of the present invention.

[0053] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] The terms "first," "second," "third," "fourth," and so forth (if any) in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can, for example, be implemented in sequences other than those illustrated or described herein.

[0056] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0057] With the advancement of technology and improvements in people's quality of life, the use of heat pump dryers for rapid clothing drying is increasing. During the drying process, because the dryer is not completely sealed, moisture in the inner drum can escape. Due to the temperature difference within the dryer, the moisture condenses inside the dryer. To address this issue, a cooling fan is typically added to the heat pump system. The action of the cooling fan promotes air flow inside the dryer, preventing condensation.

[0058] However, the operation logic of the cooling fan must be formulated according to the water vapor situation inside the equipment. When the water vapor content changes from high to low, if the cooling fan maintains a consistent working state, the system temperature will drop and the drying time will be prolonged.

[0059] Therefore, this application proposes a method for controlling the cooling fan of a heat pump dryer, which mainly determines the temperature difference inside the heat pump dryer through the compressor exhaust temperature. Then, when the exhaust temperature reaches a preset temperature, the dynamic operation logic of the cooling fan is formulated according to the operating load of the heat pump dryer reflected by the clothing information. This method can not only solve the problem of water vapor condensation inside the equipment, but also improve the working efficiency of the heat pump system.

[0060] The following combination Figure 1 , describe the application scenarios of this application.

[0061] Figure 1 This is a schematic diagram of an application scenario of a heat pump dryer provided in an embodiment of the present application. Figure 1 As shown, the heat pump dryer 10 includes a compressor 101 and a cooling fan 102. The heat pump dryer 10 can exist independently or be a washing and drying all-in-one device.

[0062] As is known to all, the heat pump dryer 10 internally comprises two parts: an air circulation unit and a refrigerant circulation unit. The air circulation unit comprises components such as a condenser, a fan, a drying drum, and an evaporator. The refrigerant circulation unit comprises components such as a compressor 101, a condenser, and an evaporator. The working principles of the two circulation units are all prior art and will not be elaborated in detail in this application. Figure 1 The dashed line represents the air flow in the heat pump dryer 10 , and the solid line represents the refrigerant flow in the heat pump dryer 10 .

[0063] The cooling fan 102 is usually installed near the compressor 101 and is connected to the outside world. It can draw outside air into the installation chamber of the compressor 101 to cool the compressor 101 and increase the life of the compressor 101; it can also make full use of the heat generated by the compressor 101 to dry the clothes in the drying drum, thereby improving the working efficiency of the heat pump dryer 10.

[0064] During the operation of the heat pump dryer 10, the exhaust temperature of the compressor 101 is obtained according to a preset cycle, and the temperature value near the compressor 101 can be known. This temperature value can roughly reflect the temperature difference inside the device. When the internal temperature of the heat pump dryer 10 is relatively high, the water vapor generation situation inside the device can be roughly determined in combination with the clothing information. When a large amount of water vapor is generated, the cooling fan is controlled to adopt different action logics according to the different drying load levels.

[0065] Based on the mutual cooperation between the above components, not only can the water vapor generation situation inside the equipment be roughly inferred, but also the low drying efficiency caused by the unreasonable operation of the cooling fan can be avoided.

[0066] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be implemented independently or in combination with each other. For the same or similar concepts or processes, some embodiments may not be described in detail.

[0067] Figure 2 A cooling fan control method according to an embodiment of the present invention Figure 1 .like Figure 2 As shown, the method is applied to a heat pump dryer, which includes a compressor and a cooling fan. The method includes:

[0068] S201, obtain the drying request of the user terminal, and start the heat pump dryer according to the drying request, wherein the drying request includes clothing information.

[0069] In the above solution, when the user needs to dry clothes, he will send a drying request carrying the clothes information to the heat pump dryer. The heat pump dryer determines the appropriate drying program according to the drying request and starts the device to dry the clothes.

[0070] S202: Obtain the exhaust temperature of the compressor according to a preset cycle.

[0071] In this step, the compressor's exhaust temperature reflects its operating status. Because the compressor continuously compresses refrigerant within the heat pump dryer, the temperature at the compressor's exhaust port is slightly higher than that of other components. Therefore, the higher the compressor's exhaust temperature, the greater the temperature difference within the device. The preset interval can be every 20 seconds or every 1 minute.

[0072] S203: If the exhaust temperature is less than or equal to the preset temperature, the cooling fan is controlled to be in an off state.

[0073] In the above scheme, if the exhaust temperature of the compressor is not higher than the preset temperature during the entire drying process, it means that the temperature difference inside the equipment is small, the amount of water vapor generated is small and it is not easy to condense. Therefore, there is no need to start the cooling fan to guide the air flow.

[0074] In a specific implementation, the preset temperature can be set to different values ​​as the ambient temperature changes, or it can be a relatively fixed value. For example, the preset temperature can be 90°C or 100°C. For example, if the preset temperature is 90°C and the compressor exhaust temperature is 60°C, the cooling fan is directly controlled to be off; if the compressor exhaust temperature is 120°C, the cooling fan is controlled to operate based on the clothing information.

[0075] S204: If the exhaust temperature is greater than the preset temperature, the cooling fan is controlled to operate based on the clothing information.

[0076] In the above scheme, if the exhaust temperature of the compressor is detected to be greater than the preset temperature within a certain cycle, it means that the temperature difference inside the equipment is large, and water vapor is easily condensed due to the temperature difference. At this time, the cooling fan needs to be turned on to promote air flow, but the operating frequency of the cooling fan needs to be determined according to the condition of the clothes to avoid a higher operating frequency when the drying load is small, which will cause the drying temperature of the heat pump system to drop and affect the drying efficiency.

[0077] In an embodiment of the present application, the water vapor situation in the heat pump dryer is roughly estimated through the exhaust temperature of the compressor and the clothing information, and the operating logic and operating frequency of the cooling fan are determined accordingly, so as to avoid the cooling fan from running at a high frequency when less water vapor is generated, causing the system temperature to drop and the drying time to be extended.

[0078] The following combination Figure 3 The specific embodiments illustrate the implementation process of controlling the operation of the cooling fan based on clothing information in the cooling fan control method of the present application.

[0079] Figure 3 A cooling fan control method according to an embodiment of the present invention Figure 2 .like Figure 3 As shown, the method includes:

[0080] S301. Obtain the original weight of the clothes from the clothes information, and obtain the current weight of the clothes and the remaining drying time.

[0081] In this step, the clothes to be dried will be heavier than their original weight due to being soaked in water. Therefore, the subsequent drying workload of the heat pump dryer can be known based on the current weight of the clothes and the original weight of the clothes.

[0082] S302: Determine a weight difference based on the current weight of the clothes and the original weight of the clothes, and calculate a ratio of the weight difference to the remaining drying time.

[0083] In the above scheme, the weight difference is the subsequent drying workload of the heat pump dryer. Before the compressor exhaust temperature reaches the threshold, the drying process has been started, so it is necessary to know the current stage of drying. The remaining drying time can well reflect the current drying process. The ratio of the weight difference and the remaining drying time can be regarded as the subsequent drying efficiency of the heat pump dryer. Under the same weight difference, the greater the remaining drying time, the lower the required drying efficiency.

[0084] S303: When the ratio is less than the preset ratio, it is determined that the drying load of the heat pump dryer is less than the preset load, and the cooling fan is controlled to operate according to the second start-stop ratio.

[0085] In this step, if the ratio of the weight difference to the remaining drying time is less than the preset ratio, either the weight difference is small or the remaining drying time is large. In either case, the drying efficiency required by the heat pump dryer is small, and the drying load is also small, so the cooling fan can operate with a smaller start-stop ratio.

[0086] During the specific implementation process, the minimum drying time and maximum drying time of the heat pump dryer for drying clothes can be obtained under each calibrated weight difference, and the average of the minimum drying time and the maximum drying time can be used as the calibrated time of the calibrated weight difference, and then the calibration ratio of the calibrated weight difference and the calibrated time corresponding to each calibrated weight difference can be obtained. This calibration ratio can be used as the preset ratio.

[0087] For example, assuming that the calibration time corresponding to the measured 2kg calibration weight difference is 10 minutes, then the preset ratio is 0.2. If the calculated ratio of the 2kg weight difference and the remaining drying time is less than 0.2, it is considered that the drying load is less than the preset load; if the calculated ratio of the 2kg weight difference and the remaining drying time is greater than or equal to 0.2, it is considered that the drying load is greater than or equal to the preset load.

[0088] S304: When the ratio is greater than or equal to the preset ratio, determine that the drying load of the heat pump dryer is greater than or equal to the preset load, and control the cooling fan to operate according to a first start-stop ratio, wherein the first start-stop ratio is greater than the second start-stop ratio.

[0089] In the above scheme, if the ratio of the weight difference to the remaining drying time is greater than or equal to the preset ratio, either the weight difference is large or the remaining drying time is small. In either case, the drying efficiency required by the heat pump dryer is large and the drying load is also large. The cooling fan needs to operate with a larger start-stop ratio to successfully complete the drying within the remaining drying time.

[0090] In the specific implementation process, the first start-stop ratio can be 1:3, and the second start-stop ratio can be 1:9. For example, if the remaining time for drying clothes is 20 minutes, then under the first start-stop ratio, the total rotation time and the total stop time of the cooling fan are 5 minutes and 15 minutes respectively; under the second start-stop ratio, the total rotation time and the total stop time of the cooling fan are 2 minutes and 18 minutes respectively.

[0091] In addition to determining the drying load based on the weight of the laundry, the drying load can also be determined based on laundry information such as the number of laundry items and the type of laundry items. For example, the laundry information contains the number of laundry items and a determination is made as to whether the number of laundry items is greater than a preset number. If so, the heat pump dryer's drying load is determined to be greater than or equal to the preset load. If not, the heat pump dryer's drying load is determined to be less than the preset load. For example, if the preset number of laundry items is 10 and the number of laundry items is 6, the drying load is considered less than the preset load; if the number of laundry items is 10, the drying load is considered equal to the preset load; and if the number of laundry items is 15, the drying load is considered greater than the preset load.

[0092] In an embodiment of the present application, the workload of the heat pump dryer is calculated by the original weight of the clothes and the current weight of the clothes, and then the size of the drying load is determined according to the ratio of the workload and the remaining drying time. The cooling fan is controlled to execute different operating plans based on the different load amounts, thereby achieving adaptation of the drying load and the fan action logic.

[0093] The following combination Figure 4 The specific embodiments illustrate the implementation process of controlling the cooling fan to operate according to the first start-stop ratio / second start-stop ratio in the cooling fan control method of the present application.

[0094] Figure 4 A cooling fan control method according to an embodiment of the present invention Figure 3 .like Figure 4 As shown, the method includes:

[0095] S401. Obtain the remaining drying time, and determine the total rotation time and the total stop time of the cooling fan according to the remaining drying time and the first rotation-stop ratio / the second rotation-stop ratio, wherein the total rotation time and the total stop time are positive integers.

[0096] In the above scheme, no matter whether the cooling fan operates according to the first start-stop ratio or the second start-stop ratio, the start-stop ratio can be uniformly reflected in the time length. Combined with the remaining drying time, the total rotation time and total stop time of the cooling fan can be calculated.

[0097] S402: Obtain a first divisor set of the total rotation duration and a second divisor set of the total stop duration, and calculate the intersection of the first divisor set and the second divisor set.

[0098] In this step, by obtaining the divisor sets of the total rotation time and the total stop time, the rotation unit time and the stop unit time can be determined from their respective divisor sets. In this embodiment, the rotation unit time is determined by the intersection of the first divisor set and the second divisor set, and then the stop unit time is determined.

[0099] Consistent with the example in the above embodiment, for example, the first start-stop ratio is 1:3, the second start-stop ratio can be 1:9, and the remaining time for drying clothes is 20 minutes. Then, under this start-stop ratio, the total rotation time and the total stop time of the cooling fan are 5 minutes and 15 minutes respectively, the first approximate number set is {1, 5}, the second approximate number set is {1, 3, 5, 15}, and the intersection of the first approximate number set and the second approximate number set is {1, 5}; under the second start-stop ratio, the total rotation time and the total stop time of the cooling fan are 2 minutes and 18 minutes respectively, the first approximate number set is {1, 2}, the second approximate number set is {1, 2, 3, 6, 9, 18}, and the intersection of the first approximate number set and the second approximate number set is {1, 2}.

[0100] S403: Determine whether the intersection contains 2.

[0101] In the above scheme, the divisors of all values ​​include 1 and themselves, so the intersection of the first divisor set and the second divisor set cannot be empty. In this case, it can be determined whether there is 2 in the intersection.

[0102] In a specific implementation process, the rotation unit duration / stop unit duration may be determined based only on the divisors in the first divisor set / the second divisor set, and then the stop unit duration / rotation unit duration may be calculated accordingly.

[0103] S404: If the intersection includes 2, determine the rotation unit duration as 2, and determine the stop unit duration according to the rotation unit duration and the first rotation-stop ratio / the second rotation-stop ratio.

[0104] In this step, if there is 2 in the intersection, 2 can be directly used as the rotation unit duration to calculate the stop unit duration.

[0105] S405 , controlling the cooling fan to stop running for a unit time period every time the cooling fan runs for a unit time period.

[0106] In the above scheme, after determining the rotation unit time and the stop unit time, the cooling fan can be controlled to run accordingly until the drying ends when the remaining drying time is 0. For example, in the above example, under the second rotation-stop ratio, the intersection of the first divisor set and the second divisor set contains 2, then the rotation unit time is directly determined to be 2, and then the stop unit time is calculated to be 18. In this way, the control logic of the cooling fan is to run for 2 minutes and stop for 18 minutes. Working according to this control logic once just ends the drying.

[0107] S406: If the intersection does not contain 2, determine the rotation unit duration to be 1, and determine the stop unit duration according to the rotation unit duration and the first rotation-stop ratio / the second rotation-stop ratio.

[0108] In this step, if 2 does not exist in the intersection, the rotation unit duration can be determined based on other common divisors in the intersection, and then the stop unit duration can be calculated. In this embodiment, the common divisor 1 is used as the rotation unit duration.

[0109] S407 , controlling the cooling fan to stop running for a unit time period after each unit time period.

[0110] Same as step S405.

[0111] For example, in the above example, under the first rotation-stop ratio, the intersection of the first divisor set and the second divisor set does not contain 2, then it can be determined that the rotation unit time is 1, and then the stop unit time is calculated to be 3. Then the control logic of the cooling fan is to stop for 3 minutes after running for 1 minute. After working five times according to this control logic, the drying of clothes is just over; it can also be determined that the rotation unit time is another common divisor 5, and the stop unit time is 15. After working once according to this control logic, the drying of clothes is just over.

[0112] In an embodiment of the present application, the total rotation time and the total stop time are calculated by the rotation-stop ratio and the remaining drying time, and then the appropriate rotation unit time and stop unit time are determined based on the divisor set of the two.

[0113] In summary of the above embodiments, the cooling fan control method provided in the embodiment of the present application determines the temperature difference inside the heat pump dryer by the compressor exhaust temperature, and then formulates the dynamic operation logic of the cooling fan according to the heat pump dryer operating load reflected by the clothing information when the exhaust temperature reaches the preset temperature.

[0114] Figure 5 A schematic diagram of the structure of a cooling fan control device provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, the cooling fan control device is applied to a heat pump dryer, which includes a compressor and a cooling fan. The cooling fan control device may include various functional modules for implementing the aforementioned cooling fan control method, and any functional module may be implemented by software / or hardware.

[0115] For example, the cooling fan control device may include: a first processing module 501, a second processing module 502 and a third processing module 503;

[0116] The first processing module 501 is configured to obtain a clothes drying request from a user terminal and start a heat pump dryer according to the clothes drying request, wherein the clothes drying request includes clothes information;

[0117] The second processing module 502 is used to obtain the exhaust temperature of the compressor according to a preset period;

[0118] The third processing module 503 is configured to control the cooling fan to operate based on the clothing information if the exhaust temperature is greater than a preset temperature.

[0119] Optionally, the third processing module 503 can also be used to determine the drying load of the heat pump dryer based on the clothing information; when the drying load is greater than or equal to the preset load, the cooling fan is controlled to operate according to a first start-stop ratio; when the drying load is less than the preset load, the cooling fan is controlled to operate according to a second start-stop ratio, wherein the first start-stop ratio is greater than the second start-stop ratio.

[0120] Optionally, the third processing module 503 can also be specifically used to: obtain the number of clothes in the clothing information, and determine whether the number of clothes is greater than a preset number; if so, determine that the drying load of the heat pump dryer is greater than or equal to the preset load; if not, determine that the drying load of the heat pump dryer is less than the preset load.

[0121] Optionally, the third processing module 503 can also be used to obtain the original weight of the clothes in the clothing information, obtain the current weight of the clothes and the remaining drying time; determine the weight difference based on the current weight of the clothes and the original weight of the clothes, and calculate the ratio of the weight difference and the remaining drying time; when the ratio is greater than or equal to the preset ratio, determine that the drying load of the heat pump dryer is greater than or equal to the preset load; when the ratio is less than the preset ratio, determine that the drying load of the heat pump dryer is less than the preset load.

[0122] Optionally, the third processing module 503 can also be specifically used to: obtain the remaining drying time, and determine the total rotation time and the total stop time of the cooling fan based on the remaining drying time and the first start-stop ratio / the second start-stop ratio, wherein the total rotation time and the total stop time are positive integers; obtain the first divisor set of the total rotation time and the second divisor set of the total stop time, and obtain the intersection of the first divisor set and the second divisor set; determine the rotation unit time and the stop unit time of the cooling fan based on the intersection and the first start-stop ratio / the second start-stop ratio, and control the cooling fan to stop running for the stop unit time every time it runs for the rotation unit time.

[0123] Optionally, the third processing module 503 can also be used to determine whether the intersection contains 2; if the intersection contains 2, the rotation unit duration is determined to be 2, and the stop unit duration is determined based on the rotation unit duration and the first turn-stop ratio / the second turn-stop ratio; if the intersection does not contain 2, the rotation unit duration is determined to be 1, and the stop unit duration is determined based on the rotation unit duration and the first turn-stop ratio / the second turn-stop ratio.

[0124] Optionally, the third processing module 503 may also be specifically configured to: if the exhaust temperature is less than or equal to a preset temperature, control the cooling fan to be in an off state.

[0125] The cooling fan control device is used to execute the technical solution provided by the aforementioned cooling fan control method embodiment. Its implementation principle and technical effects are similar to those in the aforementioned method embodiment and will not be repeated here.

[0126] The present application also provides a heat pump clothes dryer, Figure 6 Schematic diagram of the hardware of the heat pump dryer provided by the embodiment of the present invention. Figure 6As shown, the heat pump dryer 60 provided in this embodiment includes: at least one processor 601 , a memory 602 , a compressor 603 and a cooling fan 604 , wherein the processor 601 , the memory 602 , the compressor 603 and the cooling fan 604 are connected via a bus 605 .

[0127] In a specific implementation, the compressor 603 is used to compress the refrigerant;

[0128] The cooling fan 604 is used to cool the compressor 603;

[0129] A cooling fan 604 is connected to at least one processor 601;

[0130] Memory 602 stores computer-executable instructions;

[0131] The at least one processor 601 executes the computer-executable instructions stored in the memory 602 , so that the at least one processor 601 executes the above cooling fan control method.

[0132] The specific implementation process of the processor 601 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0133] In the above Figure 6 In the illustrated embodiment, it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASICs), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly executed by a hardware processor or by a combination of hardware and software modules within the processor.

[0134] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory.

[0135] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0136] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the cooling fan control method described above is implemented.

[0137] The computer-readable storage medium mentioned above can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0138] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0139] The division of units described above is merely a logical functional division. In actual implementation, other divisions may be employed. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, any coupling or direct coupling or communication connection shown or discussed between units may be an indirect coupling or communication connection via an interface, device, or unit, and may be electrical, mechanical, or other.

[0140] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0141] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0142] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, 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. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0143] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0144] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling fan control method, characterized in that: Applied to a heat pump clothes dryer, the heat pump clothes dryer comprising a compressor and a cooling fan, the method comprising: obtaining a clothes drying request from a user terminal, and starting the heat pump dryer according to the clothes drying request, wherein the clothes drying request includes clothes information; Obtaining the exhaust temperature of the compressor according to a preset period; If the exhaust temperature is greater than a preset temperature, the cooling fan is controlled to operate based on the clothing information.

2. The method according to claim 1, characterized in that The controlling the cooling fan to operate based on the clothing information includes: determining a drying load of the heat pump dryer according to the clothing information; When the clothes drying load is greater than or equal to a preset load, controlling the cooling fan to operate according to a first start-stop ratio; When the clothes drying load is less than a preset load, the cooling fan is controlled to operate according to a second start-stop ratio, wherein the first start-stop ratio is greater than the second start-stop ratio.

3. The method according to claim 2, characterized in that The determining, based on the clothing information, the drying load of the heat pump dryer includes: Obtaining the number of clothes in the clothing information, and determining whether the number of clothes is greater than a preset number; If so, determining that the drying load of the heat pump dryer is greater than or equal to a preset load; If not, it is determined that the drying load of the heat pump dryer is less than a preset load.

4. The method according to claim 2, characterized in that The determining, based on the clothing information, the drying load of the heat pump dryer includes: Obtaining the original weight of the clothes from the clothes information, obtaining the current weight of the clothes and the remaining drying time; determining a weight difference based on the current weight of the laundry and the original weight of the laundry, and calculating a ratio of the weight difference to the remaining drying time; When the ratio is greater than or equal to a preset ratio, determining that the drying load of the heat pump dryer is greater than or equal to a preset load; When the ratio is less than a preset ratio, it is determined that the drying load of the heat pump dryer is less than a preset load.

5. The method according to claim 3 or 4, characterized in that The controlling the cooling fan to operate according to the first rotation-stop ratio / the second rotation-stop ratio includes: Obtaining a remaining drying time, and determining a total rotation time and a total stop time of the cooling fan based on the remaining drying time and the first start-stop ratio / the second start-stop ratio, wherein the total rotation time and the total stop time are positive integers; Obtain a first divisor set of the total rotation duration and a second divisor set of the total stop duration, and calculate an intersection of the first divisor set and the second divisor set; The rotation unit duration and the stop unit duration of the cooling fan are determined according to the intersection and the first rotation-stop ratio / the second rotation-stop ratio, and the cooling fan is controlled to stop running for the stop unit duration every time it runs for the rotation unit duration.

6. The method according to claim 5, characterized in that The determining, based on the intersection and the first rotation-stop ratio / the second rotation-stop ratio, of the rotation unit duration and the stop unit duration of the cooling fan includes: Determine whether the intersection contains 2; If the intersection includes 2, the rotation unit duration is determined to be 2, and the stop unit duration is determined according to the rotation unit duration and the first stop-start ratio / the second stop-start ratio; If the intersection does not include 2, the rotation unit duration is determined to be 1, and the stop unit duration is determined according to the rotation unit duration and the first rotation-stop ratio / the second rotation-stop ratio.

7. The method according to claim 1, characterized in that The method further comprises: If the exhaust temperature is less than or equal to a preset temperature, the cooling fan is controlled to be in an off state.

8. A cooling fan control device, characterized in that: Applicable to a heat pump clothes dryer, the heat pump clothes dryer including a compressor and a cooling fan, the device comprising: a first processing module, configured to obtain a clothes drying request from a user terminal and start the heat pump dryer according to the clothes drying request, wherein the clothes drying request includes clothes information; A second processing module, configured to obtain the exhaust temperature of the compressor according to a preset period; The third processing module is configured to control the cooling fan to operate based on the clothing information if the exhaust temperature is greater than a preset temperature.

9. A heat pump clothes dryer, characterized in that: The heat pump clothes dryer includes at least one processor, a memory, a compressor and a cooling fan; The compressor is used to compress the refrigerant; The cooling fan is used to cool the compressor; The cooling fan is connected to the at least one processor; The memory stores computer-executable instructions; The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor performs the cooling fan control method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the cooling fan control method according to any one of claims 1 to 7 are implemented.

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