A drying device and its control method, device, storage medium and program product

Abstract

The present invention belongs to the technical field of drying equipment, and discloses a drying equipment and its control method, device, storage medium and computer program product. The method includes: dividing the entire drying process of the drying equipment into two or more drying stages to form a preset drying stage range; when the drying equipment is turned on and operated, obtaining the actual liquid level in the drying drum and obtaining the actual temperature in the drying drum; determining the position of the current operation process of the drying equipment in the preset drying stage range, which is recorded as the current operation stage of the drying equipment; in the current operation stage of the drying equipment, controlling the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum. This solution can reduce the number of useless actions of the drainage device, reduce energy consumption, and improve user experience by controlling the action of the drainage device in different drying stages of the entire drying process in combination with the liquid level information and temperature information in the drying drum.

Description

Technical Field

[0001] The present invention belongs to the technical field of drying equipment, and specifically relates to a control method, device, drying equipment (such as a clothing processing device), storage medium and computer program product of a drying equipment (such as a clothing processing device), and in particular to a drainage pump control method, device, drying equipment (such as a clothing processing device), storage medium and computer program product of a drying equipment (such as a clothing processing device). Background Art

[0002] In recent years, with the improvement of people's living standards and consumers' requirements for quality of life, drying equipment such as clothing dryers, food dryers, industrial material drying equipment, etc. are increasingly used in households and industrial fields. Most of the drying equipment in the relevant solutions are operated by preset drying time and drying temperature. Although this operation method is simple, there are many problems in actual use, such as high energy consumption, which affects user experience.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The object of the present invention is to provide a control method, device, drying device, storage medium and computer program product for a drying device, so as to solve the problem that the drying device in the related scheme is operated with a preset drying time and drying temperature, which at least has high energy consumption and affects the user experience. By controlling the action of the drainage device in different drying stages (such as the drying heating stage, the drying condensing stage and the drying cooling stage) during the whole drying process, combined with the liquid level information and temperature information in the drying cylinder, the number of useless actions of the drainage device can be reduced, the energy consumption can be reduced, and the user experience can be improved.

[0005] The present invention provides a control method for a drying device, wherein the drying device comprises a drying drum and a drainage device; the control method for the drying device comprises: dividing the entire drying process of the drying device into two or more drying stages to form a preset drying stage range; when the drying device is turned on and operated, obtaining the actual liquid level in the drying drum and obtaining the actual temperature in the drying drum; determining the position of the current operation process of the drying device in the preset drying stage range, which is recorded as the current operation stage of the drying device; in the current operation stage of the drying device, controlling the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum.

[0006] In some embodiments, the preset drying stage range includes: a drying heating stage, a drying condensing stage and a drying cooling stage; in the current operation stage of the drying equipment, according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum, the action of the drainage device is controlled, including: when the current operation stage of the drying equipment is the drying heating stage, according to the actual liquid level in the drying drum, the action of the drainage device is controlled until the drying heating stage is over; when the current operation stage of the drying equipment is the drying condensing stage, according to the actual liquid level in the drying drum, the action of the drainage device is controlled until the drying condensing stage is over; when the current operation stage of the drying equipment is the drying cooling stage, according to the actual temperature in the drying drum, the action of the drainage device is controlled until the drying cooling stage is over.

[0007] In some embodiments, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying temperature rise stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset first liquid level, controlling the drainage device to close, and the drying temperature rise stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset first liquid level, controlling the drainage device to operate with a preset first start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset first liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate with the preset first start-stop ratio.

[0008] In some embodiments, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying and condensing stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset second liquid level, controlling the drainage device to close, and the drying and condensing stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset second liquid level, controlling the drainage device to operate at a preset second start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset second liquid level, and the preset second liquid level is less than the preset first liquid level; the preset second start-stop ratio is greater than or equal to the preset first start-stop ratio; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset second liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate at the preset second start-stop ratio.

[0009] In some embodiments, the operation of the drainage device is controlled according to the actual temperature in the drying drum until the drying and cooling stage ends, including: controlling the drainage device to operate at a preset third on-off ratio; wherein the preset third on-off ratio is greater than or equal to the preset second on-off ratio; determining the temperature change in the drying drum according to the actual temperature in the drying drum acquired within a set time period; determining whether the temperature change in the drying drum is less than or equal to a preset temperature threshold; if it is determined that the temperature change in the drying drum is greater than the preset temperature threshold, continuing to control the drainage device to operate at the preset third on-off ratio until the drying and cooling stage ends; if it is determined that the temperature change in the drying drum is less than or equal to the preset temperature threshold, controlling the drainage device to operate at a preset fourth on-off ratio until the drying and cooling stage ends; wherein the preset fourth on-off ratio is greater than the preset third on-off ratio.

[0010] In some embodiments, the drainage device includes: a drainage pump or a drainage valve; the operation of the drainage device includes: an on / off ratio of the drainage pump, or an on / off ratio of the drainage valve.

[0011] Matching the above method, the present invention provides a control device for a drying device on the other hand, wherein the drying device has a drying drum and a drainage device; the control device for the drying device comprises: a control unit, configured to divide the entire drying process of the drying device into two or more drying stages to form a preset drying stage range; an acquisition unit, configured to acquire the actual liquid level in the drying drum and the actual temperature in the drying drum when the drying device is turned on and running; the control unit is further configured to determine the position of the current operation process of the drying device in the preset drying stage range, recorded as the current operation stage of the drying device; the control unit is further configured to control the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum in the current operation stage of the drying device.

[0012] In some embodiments, the preset drying stage range includes: a drying heating stage, a drying condensing stage and a drying cooling stage; the control unit controls the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum in the current operation stage of the drying equipment, including: when the current operation stage of the drying equipment is the drying heating stage, the action of the drainage device is controlled according to the actual liquid level in the drying drum until the drying heating stage is over; when the current operation stage of the drying equipment is the drying condensing stage, the action of the drainage device is controlled according to the actual liquid level in the drying drum until the drying condensing stage is over; when the current operation stage of the drying equipment is the drying cooling stage, the action of the drainage device is controlled according to the actual temperature in the drying drum until the drying cooling stage is over.

[0013] In some embodiments, the control unit controls the operation of the drainage device according to the actual liquid level in the drying drum until the drying temperature rise stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset first liquid level, controlling the drainage device to close, and the drying temperature rise stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset first liquid level, controlling the drainage device to operate with a preset first start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset first liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate with the preset first start-stop ratio.

[0014] In some embodiments, the control unit controls the operation of the drainage device according to the actual liquid level in the drying drum until the drying and condensing stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset second liquid level, controlling the drainage device to close, and the drying and condensing stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset second liquid level, controlling the drainage device to operate at a preset second start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset second liquid level, and the preset second liquid level is less than the preset first liquid level; the preset second start-stop ratio is greater than or equal to the preset first start-stop ratio; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset second liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate at the preset second start-stop ratio.

[0015] In some embodiments, the control unit controls the operation of the drainage device according to the actual temperature in the drying drum until the drying and cooling stage ends, including: controlling the drainage device to operate at a preset third on-off ratio; wherein the preset third on-off ratio is greater than or equal to the preset second on-off ratio; determining the temperature change in the drying drum according to the actual temperature in the drying drum acquired within a set time period; determining whether the temperature change in the drying drum is less than or equal to a preset temperature threshold; if it is determined that the temperature change in the drying drum is greater than the preset temperature threshold, continuing to control the drainage device to operate at the preset third on-off ratio until the drying and cooling stage ends; if it is determined that the temperature change in the drying drum is less than or equal to the preset temperature threshold, controlling the drainage device to operate at a preset fourth on-off ratio until the drying and cooling stage ends; wherein the preset fourth on-off ratio is greater than the preset third on-off ratio.

[0016] In some embodiments, the drainage device includes: a drainage pump or a drainage valve; the operation of the drainage device includes: an on / off ratio of the drainage pump, or an on / off ratio of the drainage valve.

[0017] Matching the above device, the present invention further provides a drying device on the other hand, including: a control device for the above drying device.

[0018] Matching the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the control method of the drying device described above.

[0019] Matching the above method, the present invention provides a computer program product on another aspect, including a computer program, which implements the steps of the above-mentioned control method for drying equipment when executed by a processor.

[0020] Therefore, the scheme of the present invention divides the drying process of the drying equipment into a drying heating stage, a drying condensing stage and a drying cooling stage, and controls the action of the drainage device (such as a drainage pump, a drainage valve, etc.) according to the liquid level information in the drying drum in the drying heating stage and the drying condensing stage (such as the on / off ratio of the drainage pump, the action time, etc.), and controls the action of the drainage device (such as a drainage pump, a drainage valve, etc.) according to the temperature information in the drying drum in the drying cooling stage. Thus, by controlling the action of the drainage device in different drying stages (such as the drying heating stage, the drying condensing stage and the drying cooling stage) during the entire drying process in combination with the liquid level information and the temperature information in the drying drum, the number of useless actions of the drainage device can be reduced, energy consumption can be reduced, and user experience can be improved.

[0021] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic flow chart of an embodiment of a control method for drying equipment of the present invention;

[0024] Figure 2 It is a flow chart of an embodiment of controlling the action of the drainage device in the current operation stage of the drying equipment in the method of the present invention;

[0025] Figure 3 It is a flow chart of an embodiment of controlling the action of the drainage device in the drying and heating stage in the method of the present invention;

[0026] Figure 4 It is a flow chart of an embodiment of controlling the action of the drainage device in the drying and condensing stage in the method of the present invention;

[0027] Figure 5 It is a flow chart of an embodiment of controlling the action of the drainage device in the drying and cooling stage in the method of the present invention;

[0028] Figure 6 It is a structural schematic diagram of an embodiment of a control device for drying equipment of the present invention;

[0029] Figure 7 It is a control flow diagram of the drying and heating stage;

[0030] Figure 8 It is a control flow diagram of the drying and condensing stage;

[0031] Fig. 9 This is a schematic diagram of the control flow of the drying and cooling stage.

[0032] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0033] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Considering that the drying equipment in the relevant solutions mostly adopts preset drying time and drying temperature for operation, there are many problems in actual use, such as high energy consumption, uneven drying, loud operating noise, etc., which affect the user experience.

[0036] In addition, with regard to clothing processing devices, there are few control methods for connecting the drying of clothing processing devices with the drain pump in related schemes. Generally, the drain pump will only work in a specified stage according to a preset start and stop rhythm, and there is no way to make real-time adjustments according to the drying status. This not only consumes a lot of energy, but may also cause the drain pump to produce unnecessary movements and even affect the drying effect, thereby reducing the service life of the drain pump and the reliability of the entire machine, and reducing the user experience.

[0037] Therefore, the scheme of the present invention proposes a control method for a drying device (such as a clothes processing device), specifically a drainage pump control method for a drying device (such as a clothes processing device). During different drying stages of the entire drying process, the drainage pump is started and stopped, and the start and stop rhythm is jointly controlled according to a preset liquid level, a preset temperature, an actual liquid level, and the temperature in the drum. During the entire drying process, the number of useless actions of the drainage pump is reduced, the drying energy consumption and noise are reduced, and the service life of the drainage pump is extended, the drying efficiency of the entire machine is improved, and the user experience is improved.

[0038] According to an embodiment of the present invention, a control method for a drying device is provided. Figure 1 The drying device comprises a drying drum and a drainage device, wherein the drying drum is such as a drying drum of a clothes processing device, and the drainage device is such as a drainage pump or a drainage valve of a clothes processing device; in the scheme of the present invention, Figure 1 As shown, the control method of the drying equipment includes: steps S110 to S140.

[0039] In step S110, the entire drying process of the drying device is divided into two or more drying stages in advance to form a preset drying stage range. Of course, if the preset drying stage range has been divided in advance in the program of the drying device, step S110 can be skipped in the control method of the drying device and step S120 can be directly executed.

[0040] In step S120, when the drying device is turned on and running, the actual liquid level in the drying drum (such as the liquid level information L of the liquid level sensor) is obtained, and the actual temperature in the drying drum is obtained.

[0041] At step S130, the position of the current operation process of the drying device within the preset drying stage range is determined, which is recorded as the current operation stage of the drying device; that is, the stage of the current operation process of the drying device in the entire drying process of the drying device is determined, which is recorded as the current operation stage of the drying device.

[0042] At step S140, in the current operation stage of the drying equipment, the action of the drainage device is controlled according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum to reduce the number of useless actions of the drainage device, thereby reducing energy consumption and improving user experience.

[0043] The scheme of the present invention proposes a control scheme for a drainage device (such as a drainage pump) of a drying device (such as a clothes processing device), which is a control scheme for the drainage pump of the clothes processing device during the drying stage. In different drying stages during the entire drying process, the drainage pump is started and stopped, and the start and stop rhythm is jointly controlled by a preset liquid level, a preset temperature, an actual liquid level, and the temperature in the drum. During the entire drying process, the number of useless actions of the drainage pump is reduced, the drying energy consumption and noise are reduced, and the service life of the drainage pump is extended, the drying efficiency of the entire machine is improved, and the user experience is improved.

[0044] In some embodiments, the preset drying stage range includes: a drying heating stage, a drying condensing stage, and a drying cooling stage.

[0045] In step S140, in the current operation stage of the drying device, the operation of the drainage device is controlled according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum, including at least one of the following control situations:

[0046] The first control scenario: when the current operation stage of the drying equipment is the drying temperature rise stage, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying temperature rise stage ends.

[0047] The second control scenario: when the current operation stage of the drying equipment is the drying and condensing stage, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying and condensing stage ends.

[0048] The third control scenario: when the current operation stage of the drying equipment is the drying and cooling stage, the operation of the drainage device is controlled according to the actual temperature in the drying drum until the drying and cooling stage is completed.

[0049] Of course, the specific process of controlling the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum in the current operation stage of the drying equipment in step S140 can also be seen in the following exemplary description.

[0050] Combine the following Figure 2 The flowchart of an embodiment of controlling the operation of the drainage device in the current operation stage of the drying equipment in the method of the present invention further illustrates the specific process of controlling the operation of the drainage device in the current operation stage of the drying equipment in step S140, including: step S210 to step S230.

[0051] Step S210, when the current operation stage of the drying equipment is the drying temperature rising stage, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying temperature rising stage ends.

[0052] Step S220, when the current operation stage of the drying equipment is the drying and condensing stage, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying and condensing stage ends.

[0053] Step S230, when the current operation stage of the drying equipment is the drying and cooling stage, the operation of the drainage device is controlled according to the actual temperature in the drying drum until the drying and cooling stage ends.

[0054] In the scheme of the present invention, the drying process is mainly divided into three stages: drying heating stage, drying condensation stage, and drying cooling stage; at the same time, the action of the drainage pump is also controlled by sensor parameters such as the temperature in the drum and the liquid level, which is used to solve the problem of high drying energy consumption, reduce useless actions, and reduce drying energy consumption; it is used to solve the problem of high drying noise, effectively reduce the noise of the drying process, and extend the service life of the drainage pump; it is used to solve the problem of low drying efficiency, improve drying time, improve drying efficiency, and improve user experience.

[0055] In some embodiments, in step S210, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying temperature rise stage ends. For the specific process, see the following exemplary description.

[0056] Combine the following Figure 3The flowchart of an embodiment of controlling the action of the drainage device during the drying temperature rise stage in the method of the present invention further illustrates the specific process of controlling the action of the drainage device during the drying temperature rise stage in step S210, including: steps S310 to S350.

[0057] Step S310, determining whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; wherein the preset first liquid level is, for example, a preset liquid level L1.

[0058] Step S320: If it is determined that the actual liquid level in the drying drum is less than the preset first liquid level, the drainage device is controlled to be closed, and the drying and heating stage is terminated.

[0059] Step S330, if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset first liquid level, the drainage device is controlled to operate at a preset first start-stop ratio, and then it is determined whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; the preset first start-stop ratio, such as the start-stop ratio F1; the preset reference liquid level, such as the preset liquid level L0.

[0060] Step S340, if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, the drainage device is controlled to open for a set time, and then returns to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset first liquid level; wherein the set time is such as time t.

[0061] Step S350: If it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, the control returns to continue controlling the drainage device to operate at the preset first on-off ratio.

[0062] Figure 7 This is a schematic diagram of the control process of the drying and heating stage. Figure 7 As shown in the figure, the control process of the drying and heating stage includes:

[0063] Step 11: After the drying and heating stage begins, obtain the liquid level information L (ie, the actual liquid level) from the liquid level sensor, and then execute step 12.

[0064] Step 12, determine whether the liquid level information L (ie, actual liquid level) of the liquid level sensor is ≥ the preset liquid level L1: if so, execute step 13; otherwise, control the drainage pump to turn off, and the drying and heating stage ends.

[0065] Step 13: Control the drainage pump to operate at the on / off ratio of F1, and then execute step 14.

[0066] Step 14, determine whether the liquid level sensor liquid level information L (ie, actual liquid level) < preset liquid level L0: if yes, control the drainage pump to operate for t time (ie, open for t time), and then return to step 12; otherwise, return to step 13. Among them, the preset liquid level L0 < preset liquid level L1. t: 0s < t ≤ 60s, it is best to control the delayed operation time within one working cycle.

[0067] In the scheme of the present invention, the drying and heating stage: this stage is electric heating, so that the temperature in the drum and the temperature of the clothes rise, and the water in the clothes absorbs heat and evaporates, but at this time, because there is no obvious condensation, the evaporated water cannot be discharged outside the device. The drainage pump is closed by default during the drying and heating stage. In order to prevent the situation where the clothes are not dehydrated or the moisture content is still high after dehydration, when the liquid level information L (i.e., the actual liquid level) of the liquid level sensor is ≥ the preset liquid level L1, the drainage pump is controlled to operate at the start-stop ratio of F1 until the liquid level information L (i.e., the actual liquid level) of the liquid level sensor is < the preset liquid level L0. After t, the drainage pump resumes the default closed state. The control method of the drying and heating stage can reduce the action of the drainage pump, avoid the slow heating caused by heat loss, and reduce energy consumption; the drainage pump delays the operation for t time to prevent the water level value (i.e., the liquid level value) from fluctuating due to the rotation of the drum, thereby affecting the water draining.

[0068] In some embodiments, in step S220, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying and condensing stage ends. For the specific process, see the following exemplary description.

[0069] Combine the following Figure 4 The flowchart of an embodiment of controlling the operation of the drainage device during the drying and condensing stage in the method of the present invention further illustrates the specific process of controlling the operation of the drainage device during the drying and condensing stage in step S220, including: steps S410 to S450.

[0070] Step S410, determining whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; wherein the preset second liquid level is, for example, the preset liquid level L2.

[0071] Step S420: If it is determined that the actual liquid level in the drying drum is less than the preset second liquid level, the drainage device is controlled to be closed, and the drying and condensing stage ends;

[0072] Step S430, if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset second liquid level, the drainage device is controlled to operate at a preset second start-stop ratio, and then it is determined whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset second liquid level, and the preset second liquid level is less than the preset first liquid level; the preset second start-stop ratio is greater than or equal to the preset first start-stop ratio, that is, the start time in the preset second start-stop ratio is greater than or equal to the start time in the preset first start-stop ratio; the preset second start-stop ratio, such as the start-stop ratio F2; the preset reference liquid level is such as the preset liquid level L0.

[0073] Step S440, if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, the drainage device is controlled to open for a set time, and then returns to re-determine whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; wherein the set time is such as time t.

[0074] Step S450: If it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, the control returns to continue controlling the drainage device to operate at a preset second on-off ratio.

[0075] Figure 8 This is a schematic diagram of the control process of the drying and condensing stage. Figure 8 As shown in the figure, the control process of the drying and condensing stage includes:

[0076] Step 21: After the drying and condensing stage begins, obtain the liquid level information L (ie, the actual liquid level) of the liquid level sensor, and then execute step 22.

[0077] Step 22, determine whether the liquid level sensor liquid level information L (ie, actual liquid level) ≥ preset liquid level L2: if yes, execute step 23; otherwise, control the drain pump to turn off, and the drying and condensing stage ends. Preset liquid level L2 < preset liquid level L1.

[0078] Step 23, control the drainage pump to operate at the on / off ratio of F2, and then execute step 24.

[0079] Step 24, determine whether the liquid level information L of the liquid level sensor (i.e., the actual liquid level) < the preset liquid level L0: if so, control the drainage pump to operate for t time (i.e., turn on for t time), and then return to step 22; otherwise, return to step 23. Preset liquid level L0 < preset liquid level L2. Among them, preset liquid level L0 < preset liquid level L2 < preset liquid level L1, preset liquid level L0 is the empty bucket water level, and the preset liquid level L1 and preset liquid level L2 depend on the specifications of the clothes processing device. t: 0s < t ≤ 60s, it is best to control the delayed operation time within one working cycle.

[0080] In the scheme of the present invention, the drying and condensing stage: in this stage, the condensed water enters the drum to exchange heat with the hot and humid air, and the speed of the liquid level rise depends on the strength of the condensation. In this stage, the start and stop of the drainage pump is controlled by the liquid level. When the liquid level information L of the liquid level sensor is ≥ the preset liquid level L2, the drainage pump is controlled to operate with the F2 start and stop ratio until L < the preset liquid level L0, and the operation time is t, which is an action cycle. Among them, the liquid level is the primary condition for starting the drainage pump. Using the liquid level information as the action judgment condition can avoid the increase of energy consumption caused by frequent actions, and also avoid the phenomenon of air trapped in the drainage pump and its pipeline caused by the empty switch; the drainage pump delays the operation for t time to prevent the water level value from fluctuating due to the rotation of the drum, thereby affecting the water draining.

[0081] In some embodiments, in step S230, the operation of the drainage device is controlled according to the actual temperature in the drying drum until the drying and cooling stage ends. For the specific process, see the following exemplary description.

[0082] Combine the following Figure 5 The flowchart of an embodiment of controlling the operation of the drainage device during the drying and cooling stage in the method of the present invention further illustrates the specific process of controlling the operation of the drainage device during the drying and cooling stage in step S230, including: steps S510 to S550.

[0083] Step S510, controlling the drainage device to operate with a preset third start-stop ratio; wherein the preset third start-stop ratio is greater than or equal to the preset second start-stop ratio, that is, the start time in the preset third start-stop ratio is greater than or equal to the start time in the preset second start-stop ratio; the preset third start-stop ratio is such as the start-stop ratio F3.

[0084] Step S520, determining the temperature change in the drying drum according to the actual temperature in the drying drum obtained within the set time period, specifically: determining the change in the actual temperature in the drying drum within the set time period, recorded as the temperature change in the drying drum; wherein, the set time period is such as 1 minute, and the temperature change in the drying drum is such as the change value △T of the temperature in the drum in one minute.

[0085] Step S530, determining whether the temperature change in the drying drum is less than or equal to a preset temperature threshold; wherein the preset temperature threshold is, for example, a preset temperature T1.

[0086] Step S540, if it is determined that the temperature change in the drying drum is greater than the preset temperature threshold, continue to control the drainage device to operate at a preset third on-off ratio until the drying and cooling stage ends; for example: continue to control the drainage device to operate at a preset third on-off ratio until the running time of the drying and cooling stage is reached, then control the drainage device to close, and the drying and cooling stage ends.

[0087] Step S550, if it is determined that the temperature change in the drying drum is less than or equal to the preset temperature threshold, the drainage device is controlled to operate at a preset fourth on-off ratio until the drying and cooling stage ends; wherein the preset fourth on-off ratio is greater than the preset third on-off ratio, that is, the on time in the preset fourth on-off ratio is greater than the on time in the preset third on-off ratio; the preset fourth on-off ratio is an on-off ratio F4. For example: the drainage device is controlled to operate at a preset fourth on-off ratio until the running time of the drying and cooling stage is reached, and the drainage device is controlled to be closed, and the drying and cooling stage ends.

[0088] Fig. 9 This is a control flow diagram for the drying and cooling stage. Fig. 9 As shown in the figure, the control process of the drying and cooling stage includes:

[0089] Step 31: After the drying and condensing stage begins, the drainage pump is controlled to operate at an on / off ratio of F3, and then step 32 is executed.

[0090] Step 32, determine whether the change value of the temperature in the drum in one minute △T≤the preset temperature T1: if so, execute step 34, otherwise execute step 35.

[0091] Step 34, control the drainage pump to operate at the on / off ratio of F4, and then return to step 32.

[0092] Step 35, control the drainage pump to operate at an on / off ratio of F3, and then control the drainage pump to turn off when the operating time or operating temperature of the drying and cooling stage is reached to end the drying and cooling stage.

[0093] Among them, the on-off time of the drainage pump is based on an action cycle of 30s, for example: F1: 5s ON / 25s OFF ~10s ON / 20s OFF; F2: 10s ON / 20s OFF~15s ON / 15s OFF; F3: 15s ON / 15s OFF~24s ON / 6s OFF. The on-time of F4 is greater than the on-time of F3. F4: Ton ≥ 24s or Toff ≤ 6s, or normally open. △T is the change value of the temperature in the drum in one minute, 2℃ ≤ preset temperature T1 ≤ 10℃.

[0094] In the scheme of the present invention, the drying and cooling stage: during this stage, condensed water continues to enter the drum, causing the temperature inside the drum to drop rapidly. The drain pump discharges mainly condensed water and a very small amount of water generated after heat exchange during this stage. During the drying and cooling stage, it is only necessary to ensure that the condensed water does not re-wet the clothes, so the drain pump operates at the start-stop ratio of F3 by default during this stage; at the same time, in order to ensure the cooling time, according to the temperature T inside the drum, when △T≤preset temperature T1, the drain pump is adjusted to operate at the start-stop ratio of F4, accelerating the heat discharge from the clothing processing device and accelerating the cooling speed.

[0095] In some embodiments, the drainage device includes: a drainage pump or a drainage valve; accordingly, the operation of the drainage device includes: the on-off ratio of the drainage pump or the on-off ratio of the drainage valve. The on-off ratio of the drainage pump refers to the ratio of the on time of the drainage pump to the off time of the drainage pump. The on-off ratio of the drainage valve refers to the ratio of the on time of the drainage valve to the off time of the drainage valve.

[0096] In the scheme of the present invention, the drying process is divided into stages according to the temperature in the drum, and the drainage process is controlled according to the liquid level conditions; in the drainage pump control, the start and stop of the drainage pump are controlled according to the real-time liquid level information and the temperature information in the drum in different drying stages; the drainage pump is controlled to perform relevant actions in different drying stages to achieve the effect of improving the drying efficiency. This scheme is also applicable to drainage valve type clothing processing devices.

[0097] By adopting the technical solution of this embodiment, the drying process of the drying equipment is divided into a drying heating stage, a drying condensing stage and a drying cooling stage. In the drying heating stage and the drying condensing stage, the action of the drainage device (such as a drainage pump, a drainage valve, etc.) is controlled according to the liquid level information in the drying drum (such as the on-off ratio of the drainage pump, the action time, etc.). In the drying cooling stage, the action of the drainage device (such as a drainage pump, a drainage valve, etc.) is controlled according to the temperature information in the drying drum (such as the on-off ratio of the drainage pump, the action time, etc.). Thus, by controlling the action of the drainage device in different drying stages (such as the drying heating stage, the drying condensing stage and the drying cooling stage) during the entire drying process in combination with the liquid level information and the temperature information in the drying drum, the number of useless actions of the drainage device can be reduced, energy consumption can be reduced, and user experience can be improved.

[0098] According to an embodiment of the present invention, a control device for a drying device corresponding to the control method for the drying device is also provided. Figure 6 The structural schematic diagram of an embodiment of the device of the present invention is shown. The drying device comprises a drying drum and a drainage device, the drying drum being such as a drying drum of a clothes processing device, and the drainage device being such as a drainage pump or a drainage valve of a clothes processing device; in the scheme of the present invention, Figure 6As shown, the control device of the drying equipment includes: an acquisition unit 102 and a control unit 104.

[0099] The control unit 104 is configured to divide the entire drying process of the drying device into two or more drying stages in advance to form a preset drying stage range. The specific functions and processing of the control unit 104 refer to step S110.

[0100] The acquisition unit 102 is configured to acquire the actual liquid level (such as liquid level information L of the liquid level sensor) in the drying drum and the actual temperature in the drying drum when the drying device is turned on and running. The specific functions and processing of the acquisition unit 102 refer to step S120.

[0101] The control unit 104 is further configured to determine the position of the current operation process of the drying device in the preset drying stage range, which is recorded as the current operation stage of the drying device; that is, determine the stage of the current operation process of the drying device in the entire drying process of the drying device, which is recorded as the current operation stage of the drying device. The specific functions and processing of the control unit 104 are also referred to step S130.

[0102] The control unit 104 is further configured to control the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum during the current operation stage of the drying device, so as to reduce the number of useless actions of the drainage device, thereby reducing energy consumption and improving user experience. The specific functions and processing of the control unit 104 are also shown in step S140.

[0103] The scheme of the present invention proposes a control scheme for a drainage device (such as a drainage pump) of a drying device (such as a clothes processing device), which is a control scheme for the drainage pump of the clothes processing device during the drying stage. In different drying stages during the entire drying process, the drainage pump is started and stopped, and the start and stop rhythm is jointly controlled by a preset liquid level, a preset temperature, an actual liquid level, and the temperature in the drum. During the entire drying process, the number of useless actions of the drainage pump is reduced, the drying energy consumption and noise are reduced, and the service life of the drainage pump is extended, the drying efficiency of the entire machine is improved, and the user experience is improved.

[0104] In some embodiments, the preset drying stage range includes: a drying heating stage, a drying condensing stage, and a drying cooling stage.

[0105] The control unit 104 controls the operation of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum during the current operation stage of the drying device, including at least one of the following control situations:

[0106] The first control scenario: the control unit 104 is further configured to control the operation of the drainage device according to the actual liquid level in the drying drum when the current operation stage of the drying device is the drying temperature rise stage, until the drying temperature rise stage ends. The specific functions and processing of the control unit 104 are also referred to step S210.

[0107] Second control scenario: the control unit 104 is further configured to control the operation of the drainage device according to the actual liquid level in the drying drum when the current operation stage of the drying device is the drying condensation stage, until the drying condensation stage ends. The specific functions and processing of the control unit 104 are also referred to step S220.

[0108] The third control scenario: the control unit 104 is further configured to control the operation of the drainage device according to the actual temperature in the drying drum when the current operation stage of the drying device is the drying and cooling stage, until the drying and cooling stage ends. The specific functions and processing of the control unit 104 are also referred to step S230.

[0109] In the scheme of the present invention, the drying process is mainly divided into three stages: drying heating stage, drying condensation stage, and drying cooling stage; at the same time, the action of the drainage pump is also controlled by sensor parameters such as the temperature in the drum and the liquid level, which is used to solve the problem of high drying energy consumption, reduce useless actions, and reduce drying energy consumption; it is used to solve the problem of high drying noise, effectively reduce the noise of the drying process, and extend the service life of the drainage pump; it is used to solve the problem of low drying efficiency, improve drying time, improve drying efficiency, and improve user experience.

[0110] In some embodiments, the control unit 104 controls the operation of the drainage device according to the actual liquid level in the drying drum until the drying temperature rise stage ends, including:

[0111] The control unit 104 is further configured to determine whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level, wherein the preset first liquid level is, for example, a preset liquid level L1. The specific functions and processing of the control unit 104 are also referred to step S310.

[0112] The control unit 104 is further configured to control the drainage device to close if it is determined that the actual liquid level in the drying drum is less than a preset first liquid level, thereby ending the drying and heating phase. The specific functions and processing of the control unit 104 are also shown in step S320.

[0113] The control unit 104 is further configured to control the drainage device to operate at a preset first on / off ratio if it is determined that the actual liquid level in the drying drum is greater than or equal to a preset first liquid level, and then determine whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; the preset first on / off ratio is, for example, the on / off ratio F1; and the preset reference liquid level is, for example, the preset liquid level L0. The specific functions and processing of the control unit 104 are also referred to step S330.

[0114] The control unit 104 is further configured to control the drainage device to start for a set time if it is determined that the actual liquid level in the drying drum is less than a preset reference liquid level, and then return to re-determine whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; wherein the set time is such as time t. The specific functions and processing of the control unit 104 are also referred to step S340.

[0115] The control unit 104 is further configured to return to continue controlling the drainage device to operate at a preset first on / off ratio if it is determined that the actual liquid level in the drying drum is greater than or equal to a preset reference liquid level. The specific functions and processing of the control unit 104 are also shown in step S350.

[0116] Figure 7 This is a schematic diagram of the control process of the drying and heating stage. Figure 7 As shown in the figure, the control process of the drying and heating stage includes:

[0117] Step 11: After the drying and heating stage begins, obtain the liquid level information L (ie, the actual liquid level) from the liquid level sensor, and then execute step 12.

[0118] Step 12, determine whether the liquid level information L (ie, actual liquid level) of the liquid level sensor is ≥ the preset liquid level L1: if so, execute step 13; otherwise, control the drainage pump to turn off, and the drying and heating stage ends.

[0119] Step 13: Control the drainage pump to operate at the on / off ratio of F1, and then execute step 14.

[0120] Step 14, determine whether the liquid level sensor liquid level information L (ie, actual liquid level) < preset liquid level L0: if yes, control the drainage pump to operate for t time (ie, open for t time), and then return to step 12; otherwise, return to step 13. Among them, the preset liquid level L0 < preset liquid level L1. t: 0s < t ≤ 60s, it is best to control the delayed operation time within one working cycle.

[0121] In the scheme of the present invention, the drying and heating stage: this stage is electric heating, so that the temperature in the drum and the temperature of the clothes rise, and the water in the clothes absorbs heat and evaporates, but at this time, because there is no obvious condensation, the evaporated water cannot be discharged outside the device. The drainage pump is closed by default during the drying and heating stage. In order to prevent the situation where the clothes are not dehydrated or the moisture content is still high after dehydration, when the liquid level information L (i.e., the actual liquid level) of the liquid level sensor is ≥ the preset liquid level L1, the drainage pump is controlled to operate at the start-stop ratio of F1 until the liquid level information L (i.e., the actual liquid level) of the liquid level sensor is < the preset liquid level L0. After t, the drainage pump resumes the default closed state. The control method of the drying and heating stage can reduce the action of the drainage pump, avoid the slow heating caused by heat loss, and reduce energy consumption; the drainage pump delays the operation for t time to prevent the water level value (i.e., the liquid level value) from fluctuating due to the rotation of the drum, thereby affecting the water draining.

[0122] In some embodiments, the control unit 104 controls the operation of the drainage device according to the actual liquid level in the drying drum until the drying and condensing stage ends, including:

[0123] The control unit 104 is further configured to determine whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level, wherein the preset second liquid level is, for example, a preset liquid level L2. The specific functions and processing of the control unit 104 are also referred to step S410.

[0124] The control unit 104 is further configured to control the drainage device to close if it is determined that the actual liquid level in the drying drum is less than a preset second liquid level, thereby ending the drying and condensing phase. The specific functions and processing of the control unit 104 are also shown in step S420.

[0125] The control unit 104 is also specifically configured to control the drainage device to operate at a preset second on-off ratio if it is determined that the actual liquid level in the drying drum is greater than or equal to a preset second liquid level, and then determine whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset second liquid level, and the preset second liquid level is less than the preset first liquid level; the preset second on-off ratio is greater than or equal to the preset first on-off ratio, that is, the on time in the preset second on-off ratio is greater than or equal to the on time in the preset first on-off ratio; the preset second on-off ratio is, for example, the on-off ratio F2; the preset reference liquid level is, for example, the preset liquid level L0. The specific functions and processing of the control unit 104 can also be found in step S430.

[0126] The control unit 104 is further configured to control the drainage device to start for a set time if it is determined that the actual liquid level in the drying drum is less than a preset reference liquid level, and then return to re-determine whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; wherein the set time is such as time t. The specific functions and processing of the control unit 104 are also referred to step S440.

[0127] The control unit 104 is further configured to return to continue controlling the drainage device to operate at a preset second on / off ratio if it is determined that the actual liquid level in the drying drum is greater than or equal to a preset reference liquid level. The specific functions and processing of the control unit 104 are also shown in step S450.

[0128] Figure 8 This is a schematic diagram of the control process of the drying and condensing stage. Figure 8 As shown in the figure, the control process of the drying and condensing stage includes:

[0129] Step 21: After the drying and condensing stage begins, obtain the liquid level information L (ie, the actual liquid level) of the liquid level sensor, and then execute step 22.

[0130] Step 22, determine whether the liquid level sensor liquid level information L (ie, actual liquid level) ≥ preset liquid level L2: if yes, execute step 23; otherwise, control the drain pump to turn off, and the drying and condensing stage ends. Preset liquid level L2 < preset liquid level L1.

[0131] Step 23, control the drainage pump to operate at the on / off ratio of F2, and then execute step 24.

[0132] Step 24, determine whether the liquid level information L of the liquid level sensor (i.e., the actual liquid level) < the preset liquid level L0: if so, control the drainage pump to operate for t time (i.e., turn on for t time), and then return to step 22; otherwise, return to step 23. Preset liquid level L0 < preset liquid level L2. Among them, preset liquid level L0 < preset liquid level L2 < preset liquid level L1, preset liquid level L0 is the empty bucket water level, and the preset liquid level L1 and preset liquid level L2 depend on the specifications of the clothes processing device. t: 0s < t ≤ 60s, it is best to control the delayed operation time within one working cycle.

[0133] In the scheme of the present invention, the drying and condensing stage: in this stage, the condensed water enters the drum to exchange heat with the hot and humid air, and the speed of the liquid level rise depends on the strength of the condensation. In this stage, the start and stop of the drainage pump is controlled by the liquid level. When the liquid level information L of the liquid level sensor is ≥ the preset liquid level L2, the drainage pump is controlled to operate with the F2 start and stop ratio until L < the preset liquid level L0, and the operation time is t, which is an action cycle. Among them, the liquid level is the primary condition for starting the drainage pump. Using the liquid level information as the action judgment condition can avoid the increase of energy consumption caused by frequent actions, and also avoid the phenomenon of air trapped in the drainage pump and its pipeline caused by the empty switch; the drainage pump delays the operation for t time to prevent the water level value from fluctuating due to the rotation of the drum, thereby affecting the water draining.

[0134] In some embodiments, the control unit 104 controls the operation of the drainage device according to the actual temperature in the drying drum until the drying and cooling stage ends, including:

[0135] The control unit 104 is further configured to control the drainage device to operate at a preset third on-off ratio; wherein the preset third on-off ratio is greater than or equal to the preset second on-off ratio, that is, the on time in the preset third on-off ratio is greater than or equal to the on time in the preset second on-off ratio; the preset third on-off ratio is an on-off ratio F3. The specific functions and processing of the control unit 104 are also referred to step S510.

[0136] The control unit 104 is further configured to determine the temperature variation in the drying drum according to the actual temperature in the drying drum obtained within the set period, specifically: determine the variation of the actual temperature in the drying drum within the set period, recorded as the temperature variation in the drying drum; wherein, the set period is such as 1 minute, and the temperature variation in the drying drum is such as the variation value ΔT of the temperature in the drum in one minute. The specific functions and processing of the control unit 104 are also referred to step S520.

[0137] The control unit 104 is further configured to determine whether the temperature change in the drying drum is less than or equal to a preset temperature threshold, wherein the preset temperature threshold is, for example, a preset temperature T1. The specific functions and processing of the control unit 104 are also described in step S530.

[0138] The control unit 104 is further configured to, if it is determined that the temperature change in the drying drum is greater than a preset temperature threshold, continue to control the drainage device to operate at a preset third on-off ratio until the drying and cooling stage ends; for example: continue to control the drainage device to operate at a preset third on-off ratio until the running time of the drying and cooling stage is reached, and control the drainage device to close, so that the drying and cooling stage ends. The specific functions and processing of the control unit 104 can also be found in step S540.

[0139] The control unit 104 is also specifically configured to control the drainage device to operate at a preset fourth on-off ratio until the drying and cooling stage ends if it is determined that the temperature change in the drying drum is less than or equal to a preset temperature threshold; wherein the preset fourth on-off ratio is greater than the preset third on-off ratio, that is, the on time in the preset fourth on-off ratio is greater than the on time in the preset third on-off ratio; the preset fourth on-off ratio is an on-off ratio F4. For example: the drainage device is controlled to operate at a preset fourth on-off ratio until the running time of the drying and cooling stage is reached, and the drainage device is controlled to be closed, and the drying and cooling stage ends. The specific functions and processing of the control unit 104 can also be found in step S550.

[0140] Fig. 9 This is a control flow diagram for the drying and cooling stage. Fig. 9 As shown in the figure, the control process of the drying and cooling stage includes:

[0141] Step 31: After the drying and condensing stage begins, the drainage pump is controlled to operate at an on / off ratio of F3, and then step 32 is executed.

[0142] Step 32, determine whether the change value of the temperature in the drum in one minute △T≤the preset temperature T1: if so, execute step 34, otherwise execute step 35.

[0143] Step 34, control the drainage pump to operate at the on / off ratio of F4, and then return to step 32.

[0144] Step 35, control the drainage pump to operate at an on / off ratio of F3, and then control the drainage pump to turn off when the operating time or operating temperature of the drying and cooling stage is reached to end the drying and cooling stage.

[0145] Among them, the on-off time of the drainage pump is based on an action cycle of 30s, for example: F1: 5s ON / 25s OFF ~10s ON / 20s OFF; F2: 10s ON / 20s OFF~15s ON / 15s OFF; F3: 15s ON / 15s OFF~24s ON / 6s OFF. The on-time of F4 is greater than the on-time of F3. △T is the change value of the temperature in the drum in one minute, 2℃≤preset temperature T1≤10℃.

[0146] In the scheme of the present invention, the drying and cooling stage: during this stage, condensed water continues to enter the drum, causing the temperature inside the drum to drop rapidly. The drain pump discharges mainly condensed water and a very small amount of water generated after heat exchange during this stage. During the drying and cooling stage, it is only necessary to ensure that the condensed water does not re-wet the clothes, so the drain pump operates at the start-stop ratio of F3 by default during this stage; at the same time, in order to ensure the cooling time, according to the temperature T inside the drum, when △T≤preset temperature T1, the drain pump is adjusted to operate at the start-stop ratio of F4, accelerating the heat discharge from the clothing processing device and accelerating the cooling speed.

[0147] In some embodiments, the drainage device includes: a drainage pump or a drainage valve; accordingly, the operation of the drainage device includes: the on-off ratio of the drainage pump or the on-off ratio of the drainage valve. The on-off ratio of the drainage pump refers to the ratio of the on time of the drainage pump to the off time of the drainage pump. The on-off ratio of the drainage valve refers to the ratio of the on time of the drainage valve to the off time of the drainage valve.

[0148] In the scheme of the present invention, the drying process is divided into stages according to the temperature in the drum, and the drainage process is controlled according to the liquid level conditions; in the drainage pump control, the start and stop of the drainage pump are controlled according to the real-time liquid level information and the temperature information in the drum in different drying stages; the drainage pump is controlled to perform relevant actions in different drying stages to achieve the effect of improving the drying efficiency. This scheme is also applicable to drainage valve type clothing processing devices.

[0149] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0150] According to an embodiment of the present invention, a drying device corresponding to the control device of the drying device is also provided. The drying device may include: the control device of the drying device described above.

[0151] Since the processing and functions implemented by the drying equipment of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0152] According to an embodiment of the present invention, a computer program product corresponding to a drying device is also provided, comprising a computer program, and when the computer program is executed by a processor, the steps of the control method of the drying device described above are implemented.

[0153] Since the processing and functions realized by the product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned drying equipment, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0154] According to an embodiment of the present invention, a storage medium corresponding to the control method of a drying device is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the control method of the drying device described above.

[0155] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0156] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0157] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A control method for drying equipment, characterized in that: The drying device comprises a drying drum and a drainage device; the control method of the drying device comprises: The entire drying process of the drying equipment is divided into two or more drying stages to form a preset drying stage range; the preset drying stage range includes: a drying temperature rise stage; When the drying device is turned on and running, obtaining the actual liquid level in the drying drum and obtaining the actual temperature in the drying drum; Determine the position of the current operation process of the drying device in the preset drying stage range, and record it as the current operation stage of the drying device; In the current operation stage of the drying equipment, the action of the drainage device is controlled according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum; wherein, in the current operation stage of the drying equipment, the action of the drainage device is controlled according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum, including: when the current operation stage of the drying equipment is the drying temperature rising stage, the action of the drainage device is controlled according to the actual liquid level in the drying drum until the drying temperature rising stage ends; Wherein, according to the actual liquid level in the drying drum, the action of the drainage device is controlled until the drying temperature rise stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset first liquid level, controlling the drainage device to close, and the drying temperature rise stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset first liquid level, controlling the drainage device to operate with a preset first start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset first liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate with the preset first start-stop ratio.

2. The control method of the drying equipment according to claim 1, characterized in that: The preset drying stage range also includes: drying condensation stage and drying cooling stage; In the current operation stage of the drying device, the operation of the drainage device is controlled according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum, and further includes: When the current operation stage of the drying device is the drying and condensing stage, the operation of the drainage device is controlled according to the actual liquid level in the drying drum until the drying and condensing stage ends; When the current operation stage of the drying equipment is the drying and cooling stage, the operation of the drainage device is controlled according to the actual temperature in the drying drum until the drying and cooling stage ends.

3. The control method of the drying equipment according to claim 2, characterized in that: According to the actual liquid level in the drying drum, the action of the drainage device is controlled until the drying and condensing stage is completed, including: Determining whether the actual liquid level in the drying drum is greater than or equal to a preset second liquid level; If it is determined that the actual liquid level in the drying drum is less than the preset second liquid level, the drainage device is controlled to be closed, and the drying and condensing stage ends; If it is determined that the actual liquid level in the drying drum is greater than or equal to a preset second liquid level, the drainage device is controlled to operate at a preset second on-off ratio, and then it is determined whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset second liquid level; If it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, the drainage device is controlled to be turned on for a set time, and then returns to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset second liquid level; If it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, the control returns to continue controlling the drainage device to operate at the preset second on-off ratio.

4. The control method of the drying equipment according to claim 2, characterized in that: According to the actual temperature in the drying drum, the action of the drainage device is controlled until the drying and cooling stage is finished, including: Controlling the drainage device to operate at a preset third on / off ratio; Determining the temperature change in the drying drum according to the actual temperature in the drying drum obtained within a set period of time; Determining whether the temperature change in the drying drum is less than or equal to a preset temperature threshold; If it is determined that the temperature change in the drying drum is greater than a preset temperature threshold, the drainage device is continuously controlled to operate at a preset third on / off ratio until the drying and cooling stage ends; If it is determined that the temperature change in the drying drum is less than or equal to the preset temperature threshold, the drainage device is controlled to operate at a preset fourth on-off ratio until the drying and cooling stage ends; wherein the preset fourth on-off ratio is greater than the preset third on-off ratio.

5. The control method of the drying equipment according to any one of claims 1 to 4, characterized in that: The drainage device includes: a drainage pump or a drainage valve; the operation status of the drainage device includes: the on-off ratio of the drainage pump, or the on-off ratio of the drainage valve.

6. A control device for drying equipment, characterized in that: The drying device comprises a drying drum and a drainage device; the control device of the drying device comprises: The control unit is configured to divide the entire drying process of the drying device into two or more drying stages to form a preset drying stage range; the preset drying stage range includes: a drying temperature rise stage; an acquisition unit, configured to acquire the actual liquid level in the drying drum and the actual temperature in the drying drum when the drying device is turned on and running; The control unit is further configured to determine the position of the current operation process of the drying device in a preset drying stage range, which is recorded as the current operation stage of the drying device; The control unit is further configured to control the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum during the current operation stage of the drying device; wherein, the control unit controls the action of the drainage device according to the actual liquid level in the drying drum and / or the actual temperature in the drying drum during the current operation stage of the drying device, including: when the current operation stage of the drying device is the drying temperature rise stage, controlling the action of the drainage device according to the actual liquid level in the drying drum until the drying temperature rise stage ends; Wherein, the control unit controls the operation of the drainage device according to the actual liquid level in the drying drum until the drying temperature rise stage ends, including: determining whether the actual liquid level in the drying drum is greater than or equal to a preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset first liquid level, controlling the drainage device to close, and the drying temperature rise stage ends; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset first liquid level, controlling the drainage device to operate with a preset first start-stop ratio, and then determining whether the actual liquid level in the drying drum is less than a preset reference liquid level; wherein the preset reference liquid level is less than the preset first liquid level; if it is determined that the actual liquid level in the drying drum is less than the preset reference liquid level, controlling the drainage device to open for a set time, and then returning to re-determine whether the actual liquid level in the drying drum is greater than or equal to the preset first liquid level; if it is determined that the actual liquid level in the drying drum is greater than or equal to the preset reference liquid level, returning to continue controlling the drainage device to operate with the preset first start-stop ratio.

7. A drying device, characterized in that: include: The control device of the drying equipment as claimed in claim 6.

8. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the control method for the drying device according to any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the control method of the drying device according to any one of claims 1 to 5 are implemented.

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