Control method, device and storage medium of clothing processing device
By using air outlet temperature and humidity sensors and compressor control in the clothing processing device, the drying parameters are dynamically adjusted and the clothes are dried in stages, which solves the problem that the contact sensor cannot accurately judge the dryness, and achieves an accurate and protective drying effect for clothes.
Patent Information
- Application Number
- CN202210666659.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-14
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2042-06-14
AI Technical Summary
In existing clothing processing devices, contact sensors cannot accurately determine the dryness or wetness of clothing, resulting in problems such as clothing being overheated or not being completely dried.
By setting an outlet temperature and humidity sensor in the clothing processing device, combined with fixed-frequency or variable-frequency compressor control, drying parameters such as speed and temperature are dynamically adjusted, drying operations are performed in stages, and gradually looser humidity conditions are used to judge drying.
It can accurately judge the dryness of clothes without damaging them, avoid overheating or incomplete drying, and improve the dryness judgment accuracy and clothing protection.
Smart Images

Figure CN115074976B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of control of clothing processing equipment, and in particular to a control method, device and storage medium of a clothing processing device. Background Art
[0002] With the improvement of people's living standards, the demand for the use of clothing processing equipment has become diversified, especially the demand for clothing drying has been increasing.
[0003] In the related art, the clothes are judged to be dry based on the change in the resistance value of a contact sensor provided in the drying drum.
[0004] However, when there are fewer clothes, the clothes may not touch the contact sensor as the drying drum rotates, or when the clothes are larger, the clothes will form a package as the drying drum rotates. In this way, the change in the resistance value of the contact sensor cannot truly reflect the drying condition of the clothes in the drying drum. Therefore, the use of contact sensors to judge whether the clothes are dry cannot accurately judge whether they are dry. Summary of the Invention
[0005] The purpose of the present invention is to provide a control method, device and storage medium for a clothing processing device in response to the above-mentioned deficiencies in the prior art. This purpose is achieved through the following technical solutions.
[0006] A first aspect of the present invention provides a method for controlling a laundry processing apparatus, the method comprising:
[0007] Determine that the clothes processing device performs a drying operation for a first preset time, control the clothes processing device to perform a first drying condition determination, determine that the clothes processing device does not meet the first drying condition, control the clothes processing device to continue to perform the drying operation for a second preset time, and control the clothes processing device to perform a second drying condition determination; the first humidity condition included in the first drying condition is less than the second humidity condition included in the second drying condition.
[0008] In some embodiments of the present application, before determining that the clothing processing device performs a drying operation for a first preset time, it includes: controlling the clothing processing device to perform a drying operation with initial drying parameters; the initial drying parameters include an initial rotation speed of the barrel and an initial drying temperature of the barrel.
[0009] In some embodiments of the present application, controlling the clothing processing device to continue the drying to a second preset time includes: increasing the barrel speed according to the initial barrel speed, and increasing the barrel drying temperature according to the initial barrel drying temperature; controlling the clothing processing device to perform the drying operation for the second preset time at the increased barrel speed and barrel drying temperature.
[0010] In some embodiments of the present application, increasing the barrel drying temperature according to the initial drying temperature of the barrel includes: obtaining a compressor control parameter corresponding to the initial drying temperature; and adjusting the compressor control parameter to increase the barrel drying temperature.
[0011] In some embodiments of the present application, according to the compressor being a fixed-frequency compressor, the compressor control parameters include a start temperature threshold and a stop temperature threshold; the controlling of the clothing processing device to perform a drying operation for a second preset time at the increased barrel speed and barrel drying temperature includes: detecting the refrigerant temperature; controlling the fixed-frequency compressor to stop running according to the refrigerant temperature being greater than the stop temperature threshold; controlling the fixed-frequency compressor to start according to the refrigerant temperature being less than the start temperature threshold.
[0012] In some embodiments of the present application, according to the compressor being a variable frequency compressor, the compressor control parameters include a frequency increase / decrease temperature threshold; the control of the clothing processing device to perform a drying operation for a second preset time at the increased barrel speed and barrel drying temperature includes: detecting the refrigerant temperature; and controlling the operating frequency of the variable frequency compressor according to the refrigerant temperature and the frequency increase / decrease temperature threshold.
[0013] In some embodiments of the present application, the operating frequency of the variable frequency compressor is controlled according to the refrigerant temperature and the frequency adjustment temperature threshold, including: subtracting a preset value from the frequency adjustment temperature threshold to obtain a reference temperature threshold; increasing the operating frequency of the variable frequency compressor according to the refrigerant temperature being less than or equal to the reference temperature threshold; maintaining the operating frequency of the variable frequency compressor unchanged according to the refrigerant temperature being between the reference temperature threshold and the frequency adjustment temperature threshold; and reducing the operating frequency of the variable frequency compressor according to the refrigerant temperature being greater than or equal to the frequency adjustment temperature threshold.
[0014] In some embodiments of the present application, the method further includes: determining that the clothing processing device does not meet the second drying condition, controlling the clothing processing device in a staged manner to continue performing the drying operation until the clothing processing device meets the third drying condition of the corresponding stage, and determining that the clothes are dried; wherein, each time a stage of drying operation is performed, the barrel speed and the barrel drying temperature will be increased once.
[0015] In some embodiments of the present application, after determining that the clothes are dried, the method further includes: controlling the drying drum to reverse according to a preset barrel speed and then stop after a third preset time period.
[0016] In some embodiments of the present application, the method further includes: counting the cumulative time of the drying operation; and according to the cumulative time exceeding the fourth preset time, controlling the drying drum to reverse according to the preset barrel speed for a third preset time and then stop.
[0017] The second aspect of the present invention provides a control device for a clothing processing device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method described in the first aspect above are implemented.
[0018] A third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect above.
[0019] Based on the control method, device, and storage medium of a clothes processing device described in the first to third aspects above, the technical solution of the present invention has the following beneficial effects or advantages:
[0020] First, the clothes are dried for a first preset time, and it is determined whether the clothes meet the first drying condition. If the first drying condition is not met, it means that there may be a lot of clothes, the amount of water they carry is relatively large, and the humidity is relatively high. Therefore, after continuing to dry the clothes for a second preset time, a second drying condition that is more relaxed than the first drying condition is used to determine whether the clothes are dry. That is, the first humidity condition included in the first drying condition is less than the second humidity condition included in the second drying condition, thereby achieving accurate drying without damaging the clothes. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0022] Figure 1 1 is a flow chart of a method for controlling a clothes treating apparatus according to an exemplary embodiment of the present invention;
[0023] Figure 2 1 is a schematic diagram of an implementation flow of another control method for a clothes treating apparatus according to an exemplary embodiment of the present invention;
[0024] Figure 3 1 is a schematic diagram showing a specific process of judging clothes dryness using a fixed-frequency compressor according to an exemplary embodiment of the present invention;
[0025] Figure 4 1 is a schematic diagram showing a specific process of judging clothes dryness using a variable frequency compressor according to an exemplary embodiment of the present invention;
[0026] Figure 5 1 is a schematic structural diagram of a control device for a clothes treating device according to an exemplary embodiment of the present invention;
[0027] Figure 6 The figure is a schematic structural diagram of a storage medium according to an exemplary embodiment of the present invention.
[0028] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0031] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.
[0032] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0034] Currently, the solution for using contact sensors to determine whether the clothes are dry is as follows: during the drying process, the clothes hit the contact sensor as the drying drum rotates, causing the resistance value of the contact sensor to change. Therefore, the change in the resistance value of the contact sensor is detected to determine whether the clothes are dried.
[0035] However, when there is a small amount of clothes, the contact sensor fails to contact the clothes and measure their humidity in time, which will cause the clothes to be judged as not dried even though they are already dried, and continue to dry, causing the clothes to overheat and be damaged; when there is a large amount of clothes, the clothes on the inside are dried slower than the clothes on the outside, and the contact sensor contacts the clothes on the outside, which will cause the clothes to be judged as dried even though they are not completely dried, and stop running.
[0036] In order to solve the above technical problems, the present application proposes a solution for judging whether clothes are dry, that is, the clothes are first dried for a first preset time, and it is determined whether the clothes meet the first drying conditions. If the first drying conditions are not met, it means that there may be a lot of clothes, the amount of water they carry is relatively large, and the humidity is relatively high. Therefore, after continuing to dry the clothes for a second preset time, a second drying condition that is more relaxed than the first drying condition is used to judge whether the clothes are dry, that is, the first humidity condition included in the first drying condition is less than the second humidity condition included in the second drying condition, thereby achieving accurate dryness judgment without damaging the clothes.
[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0038] Example 1:
[0039] Figure 1 This is a flow chart of an embodiment of a control method for a clothing processing device according to an exemplary embodiment of the present invention. The clothing processing device adapted in the embodiment of the present application has a clothing drying function, which can be a dryer or a washer-dryer. The present application does not specifically limit the type of clothing processing device.
[0040] See also Figure 1 As shown, the control method of the clothes processing device includes the following steps:
[0041] Step 101: Determine whether a clothes treating apparatus performs a drying operation for a first preset time period.
[0042] The drying operation of the first preset duration is the running duration of the first drying process for the clothes. Specifically, the clothes treating device is controlled to perform the drying operation with the initial drying parameters.
[0043] Among them, the first preset time and the initial drying parameters can be parameters preset in the clothing processing device. Optionally, the initial drying parameters include the initial rotation speed of the barrel and the initial drying temperature of the barrel, that is, under certain drying temperature conditions, the hot air exchanges heat with the clothes and takes away the moisture on the clothes, and the drying drum rotates at a certain speed during this period, so that the clothes are fully in contact with the hot air, thereby increasing the heat exchange between the hot air and the clothes.
[0044] Step 102: Control the clothes processing device to determine a first drying condition, where the first drying condition includes a first humidity condition.
[0045] Among them, in addition to the first humidity condition, the first drying condition can also include temperature conditions and duration conditions. By limiting the duration for the outlet air temperature and outlet air humidity to meet the temperature condition and the first humidity condition, the misjudgment problem caused by the single satisfaction of the judgment condition can be avoided, thereby improving the drying judgment accuracy.
[0046] In an optional embodiment, the drying drum of the laundry processing device is provided with an air inlet and an air outlet. A temperature and humidity sensor is installed at the air outlet to obtain the outlet air temperature and humidity at the laundry processing device. The clothes are then determined to be dry by determining whether the outlet air temperature and humidity meet the first drying condition. Compared to existing solutions that use contact sensors for dryness determination, since the air discharged from the air outlet is air that has been heat-exchanged with the clothes, using the outlet air temperature and humidity for dryness determination can comprehensively reflect the drying status of the clothes and is not affected by the amount or size of the clothes in the drying drum, resulting in high dryness determination accuracy.
[0047] Step 103: Determine that the clothes processing device does not meet the first drying condition, and control the clothes processing device to continue to perform the drying operation for a second preset time.
[0048] In step 103, the air outlet temperature is compared with the temperature condition and the air outlet humidity is compared with the first humidity condition. If the air outlet temperature is greater than or equal to the temperature condition and the air outlet humidity is less than or equal to the first humidity condition, and the duration meets the duration condition (for example, 5 minutes), it is determined that the clothing processing device meets the first drying condition, that is, the clothes are dried; otherwise, it is determined that the clothing processing device does not meet the first drying condition, that is, the clothes have not been dried.
[0049] Furthermore, when it is determined that the clothes processing device does not meet the first drying condition, it means that there may be a lot of clothes, a lot of water, and high humidity, so it is necessary to continue drying the clothes for a second preset time.
[0050] In one possible implementation, for the drying operation process of the second preset duration, the barrel speed can be increased according to the initial barrel speed, and the barrel drying temperature can be increased according to the initial barrel drying temperature, and then the clothing processing device is controlled to perform the drying operation of the second preset duration with the increased barrel speed and barrel drying temperature.
[0051] Among them, when performing the second drying operation, the drying temperature and speed of the barrel are increased to increase the heat exchange between the hot air and the clothes, thereby increasing the drying degree of the clothes.
[0052] It is understood that the first preset time duration and the second preset time duration may be the same or different, and this application does not impose any specific limitation thereto. Furthermore, the barrel drying temperature and barrel speed may be increased by determining the parameters of the second drying operation based on the barrel drying temperature and barrel speed of the first drying operation, so that the barrel drying temperature and barrel speed of the drying operation are dynamically increased. Of course, the barrel drying temperature and barrel speed of the second drying operation may also be pre-set, as long as the barrel drying temperature and barrel speed of the second drying operation are higher than those of the first drying operation.
[0053] For example, a heat pump system for clothes handling consists of a compressor and condenser. The compressor compresses low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure gas. This gas then flows through the condenser, releasing heat to the environment. It then condenses into a medium-temperature, high-pressure refrigerant liquid. This liquid is then throttled by a throttling device to a low-temperature, low-pressure refrigerant liquid. The liquid then flows through the evaporator, absorbing heat and evaporating into a low-temperature, low-pressure refrigerant gas. During this process, hot air generated by the heat pump system enters the drum, exchanging heat with the clothes in the drying drum to remove moisture from the clothes before being discharged through the air outlet, thus drying the clothes.
[0054] Based on this, for the process of increasing the barrel drying temperature according to the initial drying temperature of the barrel, the compressor control parameters corresponding to the initial drying temperature are obtained, and then the compressor control parameters are adjusted to increase the barrel drying temperature.
[0055] For fixed-frequency compressors, the compressor control parameters include a start-up temperature threshold and a stop-down temperature threshold. The start-up temperature threshold indicates the minimum refrigerant temperature limit when the fixed-frequency compressor restarts after protection, while the stop-down temperature threshold indicates the maximum refrigerant temperature limit at which the fixed-frequency compressor stops. Specifically, by increasing the start-up and stop-down temperature thresholds, the drum drying temperature is increased.
[0056] Optionally, in the process of controlling the clothes processing device to perform a drying operation for a second preset duration at the increased drum speed and drum drying temperature, the refrigerant temperature is detected and, if the refrigerant temperature is greater than a stop temperature threshold, the fixed-frequency compressor is controlled to stop operating, and if the refrigerant temperature is less than a start temperature threshold, the fixed-frequency compressor is controlled to start. Since both the stop temperature threshold and the start temperature threshold are increased, the refrigerant temperature required to start and stop the fixed-frequency compressor is also increased, thereby correspondingly increasing the drum drying temperature.
[0057] Furthermore, when the compressor is a variable-frequency compressor, the compressor control parameters include a frequency-up / down temperature threshold. This threshold indicates the critical refrigerant temperature at which the variable-frequency compressor increases or decreases its frequency. The higher the frequency of the variable-frequency compressor, the higher the barrel drying temperature. Specifically, increasing the frequency-up / down temperature threshold achieves the goal of increasing the barrel drying temperature.
[0058] Optionally, in the process of controlling the clothing processing device to perform a drying operation for a second preset time at the increased barrel speed and barrel drying temperature, the refrigerant temperature is detected and the operating frequency of the variable frequency compressor is controlled according to the refrigerant temperature and the frequency increase / decrease temperature threshold.
[0059] Specifically, in the process of controlling the operating frequency of the variable frequency compressor according to the refrigerant temperature and the frequency adjustment temperature threshold, the reference temperature threshold is obtained by subtracting a preset value from the frequency adjustment temperature threshold. Then, if the refrigerant temperature is less than or equal to the reference temperature threshold, the operating frequency of the variable frequency compressor is increased; if the refrigerant temperature is between the reference temperature threshold and the frequency adjustment temperature threshold, the operating frequency of the variable frequency compressor is kept unchanged; if the refrigerant temperature is greater than or equal to the frequency adjustment temperature threshold, the operating frequency of the variable frequency compressor is reduced.
[0060] Among them, the preset value represents a refrigerant temperature change range that keeps the operating frequency of the variable frequency compressor stable. That is to say, by limiting the range between the reference temperature threshold and the frequency increase / decrease temperature threshold, it is possible to avoid frequent changes in the operating frequency of the variable frequency compressor and shorten the service life of the variable frequency compressor.
[0061] Regarding the control process of the above-mentioned fixed-frequency compressor and variable-frequency compressor, the refrigerant temperature involved can be detected by a temperature sensor at the condenser outlet, or the exhaust temperature or return air temperature can be used, and this application does not make specific restrictions on this.
[0062] It can be understood that the control of the drying function of the clothing processing device based on the heat pump system given above is only an exemplary description. The clothing processing device based on the heating device is also applicable to the drying judgment scheme proposed in this application. For example, the change of the drying temperature of the barrel can be controlled by controlling the heating temperature of the heating device.
[0063] Step 104: controlling the clothes processing device to determine the second drying condition, where the first humidity condition included in the first drying condition is lower than the second humidity condition included in the second drying condition.
[0064] Among them, the second drying condition which is more relaxed than the first drying condition is used for drying judgment, that is, the first humidity condition included in the first drying condition is less than the second humidity condition included in the second drying condition, which can ensure accurate drying judgment without damaging the clothes.
[0065] It should be noted that after determining that the clothes processing device does not meet the second drying condition, the clothes processing device continues to be controlled in a staged manner to continue to perform the drying operation and judgment until the clothes processing device meets the third drying condition of the corresponding stage and determines that the clothes are dried.
[0066] The drying operations performed in step 101 and step 103 can be defined as a first-stage drying operation and a second-stage drying operation, respectively.
[0067] It is worth noting that the barrel speed and barrel drying temperature will be increased once for each stage of drying operation. For the method of increasing the barrel speed and barrel drying temperature, please refer to the relevant description of the above steps, and the humidity condition in the drying conditions will be relaxed for each stage of drying operation. That is to say, the third humidity condition in the third drying condition of the previous stage is less than the third humidity condition in the third drying condition of the next stage.
[0068] It should be further explained that after determining that the clothes are dried, the drying drum can be controlled to reverse according to the preset barrel speed and stop after the third preset time, so as to shake the clothes in the opposite direction to avoid the clothes from being tangled together, which makes it inconvenient for users to take out the clothes.
[0069] The third preset duration indicates how long the drying drum is reversed before the drying process ends, and this duration can ensure that the clothes are shaken loose.
[0070] Optionally, the preset barrel speed can be set to a multiple of the normal speed to increase the shaking intensity of the clothes and facilitate shaking.
[0071] Furthermore, in order to avoid damage to clothes caused by long-term drying operations, the accumulated time of each drying operation on the clothes in the drying drum can be added to the drying time of the corresponding stage. When the accumulated time exceeds the fourth preset time, the drying drum is controlled to reverse for the third preset time according to the preset barrel speed and then stop.
[0072] The fourth preset time duration represents the cumulative time limit of the entire drying operation process.
[0073] At this point, the above is completed Figure 1 The control process shown first performs a drying operation on the clothes for a first preset time, and determines whether the clothes meet the first drying condition. If the first drying condition is not met, it means that there may be a lot of clothes, the amount of water they carry is relatively large, and the humidity is relatively high. Therefore, after continuing to dry the clothes for a second preset time, a second drying condition that is more relaxed than the first drying condition is used to determine whether the clothes are dry. That is, the first humidity condition included in the first drying condition is less than the second humidity condition included in the second drying condition, thereby achieving accurate drying without damaging the clothes.
[0074] Example 2:
[0075] Figure 2 This is a schematic diagram of an implementation flow of another control method for a clothes processing device according to an exemplary embodiment of the present invention. Figure 1 Based on the illustrated embodiment, taking a clothes treating device of a heat pump system as an example, the control method of the clothes treating device specifically includes the following steps:
[0076] Step 201: Perform a drying operation using the drying parameters of the first stage, and add the drying time of the first stage to the accumulated time.
[0077] Among them, the drying parameters include barrel drying temperature, barrel speed, drying time, etc.
[0078] Step 202: Determine whether the air outlet temperature and air outlet humidity at the air outlet of the drying drum meet the drying conditions of the first stage.
[0079] Among them, the drying conditions include humidity conditions and temperature conditions.
[0080] Step 203: If the drying conditions of the first stage are not met, then when the accumulated time does not exceed the fourth preset time, continue to perform the drying operation using the drying parameters of the second stage, and add the accumulated time to the drying time of the second stage.
[0081] Among them, the drying parameters of the second stage include the barrel rotation speed and barrel drying temperature, which are increased based on the first stage.
[0082] Step 204: Determine whether the air outlet temperature and air outlet humidity at the air outlet of the drying drum meet the drying conditions of the second stage.
[0083] The humidity condition included in the drying conditions of the first stage is smaller than the humidity condition included in the drying conditions of the second stage.
[0084] Step 205: If the drying conditions of the second stage are not met, and the accumulated time does not exceed the fourth preset time, the drying operation of the third stage is continued, and so on, until the air outlet temperature and air outlet humidity at the air outlet of the drying drum meet the drying conditions of the corresponding stage or the accumulated time exceeds the fourth preset time, and the drying operation is terminated.
[0085] It can be seen that by gradually increasing the barrel speed and the barrel drying temperature, the drying degree of the clothes can be increased step by step, while shortening the drying time and avoiding damage and deformation of the clothes.
[0086] It is understood that the drying time of each stage may be the same or different, and this application does not specifically limit this. For example, the drying time may be increased stage by stage. For example, assuming that the drying time of the first stage is set to 20 minutes, the drying time of the second stage is 40 minutes, the drying time of the third stage is 60 minutes, and so on, the drying time of each stage is increased by 20 minutes.
[0087] In an alternative embodiment, to prevent the drying drum from rotating in one direction and causing the clothes to become tangled, the drying drum can be controlled to rotate alternately between forward and reverse rotation according to the drum speed at the corresponding stage. For example, the drying drum can rotate forward for 5 minutes and then reverse for 10 seconds, and so on.
[0088] Step 206: Control the drying drum to reverse according to the preset drum body speed and then stop after the third preset time period.
[0089] For the specific implementation of the above steps 201 to 206, please refer to the relevant description in the above embodiments, and this application will not go into details here.
[0090] At this point, the above is completed Figure 2 The control process shown in the figure performs a staged drying process on the clothes, and in each stage, the outlet air temperature and outlet air humidity at the drying drum outlet are used to judge the dryness. Compared with the existing solution that uses a contact sensor to judge the dryness, since the air discharged from the air outlet is the air after heat exchange with the clothes, the outlet air temperature and outlet air humidity at the air outlet can reflect the overall drying condition of the clothes, and are not affected by the amount or size of the clothes in the drying drum, so the dryness judgment accuracy is high.
[0091] Furthermore, by limiting the entire drying operation time, damage to clothes caused by prolonged drying operation can be avoided.
[0092] Example 3:
[0093] Figure 3 This is a schematic diagram of a specific process of judging clothes dryness using a fixed-frequency compressor according to an exemplary embodiment of the present invention. Figure 1 and Figure 2 In this embodiment, based on the previously described embodiment, when the compressor is a fixed-frequency compressor, the drying parameters for each stage include the compressor start temperature threshold and the compressor stop temperature threshold. Furthermore, starting from the first stage, the compressor start temperature threshold, the compressor stop temperature threshold, and the tub speed in subsequent stages increase in stages, and the humidity condition in the drying conditions in subsequent stages also increases in stages.
[0094] The following is an example of a four-stage drying operation. That is, when the fourth stage of drying is completed, the entire drying operation time has exceeded the maximum time limit. Figure 3 As shown in FIG, the clothes dryness determination process of the fixed-frequency compressor specifically includes the following steps:
[0095] Step 301: Perform a drying operation according to the compressor start temperature threshold, the compressor stop temperature threshold, and the drum speed of the first stage, and continue for 20 minutes.
[0096] Step 302: Compare the outlet air temperature and outlet air humidity with the temperature condition T and humidity condition t% of the first stage respectively.
[0097] Step 303: Determine whether the outlet air temperature is greater than or equal to T and the outlet air humidity is less than or equal to t% and lasts for 5 minutes. If not, execute step 304; if so, execute step 309.
[0098] Step 304: Increase the compressor start temperature threshold and the compressor stop temperature threshold of the first stage by ΔT, increase the drum speed by r, and then continue the second stage of clothes drying process for 40 minutes.
[0099] Step 305: Determine whether the outlet air temperature is greater than or equal to T and the outlet air humidity is less than or equal to (t+t1)% and lasts for 5 minutes. If not, execute step 306; if so, execute step 309.
[0100] Step 306: Increase the compressor start temperature threshold and the compressor stop temperature threshold of the second stage by ΔT, increase the drum speed by r, and then continue the drying operation of the third stage for 60 minutes.
[0101] Step 307: Determine whether the outlet air temperature is greater than or equal to T and the outlet air humidity is less than or equal to (t+t1+t2)% and lasts for 5 minutes. If not, execute step 308; if yes, execute step 309.
[0102] Step 308: Increase the compressor start temperature threshold and the compressor stop temperature threshold of the third stage by ΔT, increase the drum speed by r, continue the fourth stage drying operation, and continue for 80 minutes, then execute step 309.
[0103] Step 309: Control the drying drum to reverse according to the preset drum speed for 1 minute and then stop.
[0104] For the processes of the above-mentioned steps 301 and 309, please refer to the relevant descriptions in the above-mentioned embodiments, and this application will not go into details here.
[0105] At this point, the above is completed Figure 3 The specific process of judging whether clothes are dry is shown.
[0106] Example 4:
[0107] Figure 4 This is a schematic diagram of a specific process of judging clothes dryness using a variable frequency compressor according to an exemplary embodiment of the present invention. Figure 1 and Figure 2 In this embodiment, based on the previously described embodiment, when the compressor is a variable-frequency compressor, the compressor control parameter for each drying stage includes the compressor frequency increase / decrease temperature threshold. Furthermore, starting from the first stage, the compressor frequency increase / decrease temperature threshold and the drum speed increase in subsequent stages, and the humidity condition in the drying conditions of subsequent stages also increases in each stage.
[0108] The following is an example of a four-stage drying operation. That is, when the fourth stage of drying is completed, the entire drying process time has exceeded the maximum time limit. Figure 4 As shown in FIG, the laundry dryness determination process of the variable frequency compressor specifically includes the following steps:
[0109] Step 401: The drying operation is performed according to the compressor frequency increase / decrease temperature threshold and the drum speed in the first stage, and lasts for 20 minutes.
[0110] The starting frequency of the variable frequency compressor is the highest frequency allowed under the current ambient temperature.
[0111] Regarding the specific control process of the operating frequency of the variable-frequency compressor, in one example, if the refrigerant temperature >= the frequency-up / down temperature threshold t and lasts for 30 seconds, the operating frequency is reduced by 2HZ. Then, the refrigerant temperature is detected every 1 minute. If the refrigerant temperature >= t, the frequency is further reduced by 3HZ. If t - 2℃ < the refrigerant temperature < t, the current operating frequency remains unchanged. If the refrigerant temperature <= t - 2℃, the operating frequency is increased by 1HZ. Then, the refrigerant temperature is detected every 1 minute. If the refrigerant temperature <= t - 2℃, the operating frequency is further increased by 1HZ.
[0112] Step 402: Compare the outlet air temperature and outlet air humidity with the temperature condition T and humidity condition t% in the first stage respectively.
[0113] Step 403: Determine whether it satisfies that the outlet air temperature is greater than or equal to T, the outlet air humidity is less than or equal to t%, and lasts for 5 minutes. If not, execute Step 404; if so, execute Step 409.
[0114] Step 404: Increase the compressor frequency-up / down temperature threshold in the first stage by ΔT, increase the barrel rotation speed by r, then continue the drying operation in the second stage and last for 40 minutes.
[0115] Step 405: Determine whether it satisfies that the outlet air temperature is greater than or equal to T, the outlet air humidity is less than or equal to (t + t1)%, and lasts for 5 minutes. If not, execute Step 406; if so, execute Step 409.
[0116] Step 406: Increase the compressor frequency-up / down temperature threshold in the second stage by ΔT, increase the barrel rotation speed by r, then continue the drying operation in the third stage and last for 60 minutes.
[0117] Step 407: Determine whether it satisfies that the outlet air temperature is greater than or equal to T, the outlet air humidity is less than or equal to (t + t1 + t2)%, and lasts for 5 minutes. If not, execute Step 408; if so, execute Step 409.
[0118] Step 408: Increase the compressor frequency-up / down temperature threshold in the third stage by ΔT, increase the barrel rotation speed by r, then continue the drying operation in the fourth stage and last for 80 minutes, and then execute Step 409.
[0119] Step 409: Control the drying cylinder to reverse for 1 minute according to the preset barrel rotation speed and then stop.
[0120] Regarding the processes of the above Step 401 and Step 409, the relevant descriptions in the above embodiments can be referred to, and details are not repeated herein in this application.
[0121] So far, the above Figure 4 shown specific clothing dryness determination process is completed.
[0122] An embodiment of the present invention further provides a control device for a laundry processing apparatus corresponding to the control method for a laundry processing apparatus provided in the aforementioned embodiment, so as to execute the aforementioned control method for a laundry processing apparatus.
[0123] Figure 5 This is a hardware structure diagram of a control device for a laundry processing apparatus according to an exemplary embodiment of the present invention. The control device comprises a communication interface 701, a processor 702, a memory 703, and a bus 704. The communication interface 701, the processor 702, and the memory 703 communicate with each other via the bus 704. The processor 702 executes the control method for a laundry processing apparatus described above by reading and executing machine-executable instructions corresponding to the control logic of the control method in the memory 703. The details of the method are described in the above embodiments and are not repeated here.
[0124] The memory 703 mentioned in the present invention can be any electronic, magnetic, optical or other physical storage device, and can contain stored information, such as executable instructions, data, etc. Specifically, the memory 703 can be RAM (Random Access Memory), flash memory, a storage drive (such as a hard disk drive), any type of storage disk (such as an optical disk, DVD, etc.), or similar storage media, or a combination thereof. The communication connection between the system network element and at least one other network element is achieved through at least one communication interface 701 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used.
[0125] The bus 704 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 703 is used to store programs, and the processor 702 executes the programs after receiving an execution instruction.
[0126] The processor 702 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor 702 or by instructions in the form of software. The above-mentioned processor 702 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
[0127] The control device of the clothing treatment device provided in the embodiment of the present application and the control method of the clothing treatment device provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.
[0128] The present application also provides a computer-readable storage medium corresponding to the control method of the laundry processing device provided in the above embodiment. Figure 6 As shown, the computer-readable storage medium is a CD 30 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the control method of the clothing processing device provided by any of the aforementioned embodiments is executed.
[0129] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.
[0130] The computer-readable storage medium provided in the above-mentioned embodiments of the present application and the control method of the clothing processing device provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.
[0131] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.
[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A method for controlling a clothes processing device, characterized in that: The method comprises: determining that the laundry processing device has performed a drying operation for a first preset time period, controlling the laundry processing device to perform a first drying condition determination, determining that the laundry processing device does not meet the first drying condition, controlling the laundry processing device to continue performing the drying operation for a second preset time period, and controlling the laundry processing device to perform a second drying condition determination; a first humidity condition included in the first drying condition is less than a second humidity condition included in the second drying condition; Before determining that the laundry processing device performs the drying operation for a first preset time, the method includes: Controlling the clothes processing device to perform a drying operation with initial drying parameters; the initial drying parameters include an initial rotation speed of the barrel and an initial drying temperature of the barrel; The controlling the clothes treating device to continue drying for a second preset time period includes: Increasing the barrel rotation speed according to the initial barrel rotation speed, and increasing the barrel drying temperature according to the initial barrel drying temperature; Controlling the clothes processing device to perform a drying operation for a second preset time period at the increased barrel speed and barrel drying temperature; The step of increasing the drying temperature of the barrel according to the initial drying temperature of the barrel comprises: Obtaining a compressor control parameter corresponding to the initial drying temperature; Adjusting the compressor control parameters to increase the barrel drying temperature; According to the compressor being a fixed-frequency compressor, the compressor control parameters include a start temperature threshold and a stop temperature threshold; The controlling the clothes processing device to perform a drying operation for a second preset time period at the increased barrel speed and barrel drying temperature includes: Detect refrigerant temperature; According to the refrigerant temperature being greater than the stop temperature threshold, controlling the fixed-frequency compressor to stop running; According to the refrigerant temperature being lower than the starting temperature threshold, controlling the fixed-frequency compressor to start; or, According to the compressor being a variable frequency compressor, the compressor control parameter includes a frequency increase / decrease temperature threshold; The controlling the clothes processing device to perform a drying operation for a second preset time period at the increased barrel speed and barrel drying temperature includes: Detect refrigerant temperature; The operating frequency of the variable frequency compressor is controlled according to the refrigerant temperature and the frequency increase / decrease temperature threshold.
2. The method according to claim 1, wherein The controlling the operating frequency of the variable frequency compressor according to the refrigerant temperature and the frequency increase / decrease temperature threshold comprises: Subtract a preset value from the frequency-increasing temperature threshold to obtain a reference temperature threshold; increasing the operating frequency of the variable frequency compressor according to the refrigerant temperature being less than or equal to the reference temperature threshold; According to the refrigerant temperature being between the reference temperature threshold and the frequency-adjusting temperature threshold, maintaining the operating frequency of the variable frequency compressor unchanged; According to the refrigerant temperature being greater than or equal to the frequency-increasing temperature threshold, the operating frequency of the variable-frequency compressor is reduced.
3. The method according to claim 1, wherein The method further comprises: determining that the clothes treating device does not meet the second drying condition, controlling the clothes treating device to continue to perform the drying operation in a staged manner until the clothes treating device meets the third drying condition of the corresponding stage, and determining that the clothes are dried; Among them, each stage of drying operation will increase the barrel speed and barrel drying temperature once.
4. The method according to claim 3, wherein After determining that the clothes are dried, the method further includes: The drying drum is controlled to reverse according to the preset drum speed and then stops after the third preset time.
5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Count the cumulative time of drying operation; According to the accumulated time exceeding the fourth preset time, the drying drum is controlled to reverse according to the preset barrel speed for the third preset time and then stop.
6. A control device for a clothes processing device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.
7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.
Citation Information
Patent Citations
Drying control method and clothes processing equipment
CN114016270A