Drying control method of drying apparatus and drying apparatus

Abstract

The present application relates to the technical field of clothes processing equipment, and particularly provides a drying control method of a drying equipment and the drying equipment, aiming to solve the problem that the effect of filtering dust by a condenser of an existing drying equipment is poor. To this end, the drying equipment comprises a drying cylinder, a condenser, a fan and a drying air duct, the air inlet of the condenser is communicated with the rear end of the drying cylinder, the air outlet of the condenser is communicated with the air suction port of the fan, the air exhaust port of the fan is communicated with the front end of the drying cylinder through the drying air duct, and the drying control method comprises: acquiring the humidity of clothes in the drying cylinder; and selectively reducing the rotating speed of the fan and / or increasing the flow of cooling water entering the condenser according to the humidity of the clothes. In the process of executing the drying mode, the humidity of the clothes in the drying cylinder is detected, so that when the humidity of the clothes is low, the filtering effect of the condenser on dust can be improved by reducing the rotating speed of the fan and / or increasing the flow of cooling water entering the condenser.

Description

Technical Field

[0001] This invention relates to the field of clothing processing equipment technology, specifically providing a drying control method and drying equipment for a drying device. Background Technology

[0002] Drying equipment refers to machines that use hot air to dry clothes. Drying equipment mainly includes washer-dryer combos and dryers.

[0003] Taking washer-dryer combos as an example, they are intelligent devices that combine washing, rinsing, dehydration, and drying functions. Due to their high cost-effectiveness, strong space adaptability, and time-saving and labor-saving features, they are currently widely welcomed by users in the home appliance market.

[0004] A washer-dryer combo mainly consists of a cabinet and an outer drum, an inner drum, and a drying unit housed within the cabinet. The drying unit primarily includes a condenser, a fan, a drying duct, and heating elements located within the drying duct. The fan provides power, causing the airflow to circulate between the inner drum, the condenser, and the drying duct. Under the action of the heating elements, the airflow is heated into hot air, which then enters the inner drum to exchange heat with the wet clothes, carrying away the moisture and forming a relatively humid hot airflow. This airflow then enters the condenser, where the moisture in the relatively humid hot airflow is condensed into water and discharged through the drain pipe. The condensed airflow becomes a relatively dry cold airflow, which is then heated back into a dry hot airflow by the heating elements before entering the next cycle. This process repeats until the drying cycle is complete.

[0005] There are many types of condensation methods used in condensers. One common method is to use water as a cooling medium to exchange heat with the drying airflow, thereby condensing the moisture in the airflow and separating it from the airflow. This type of condenser typically has a vertically extending condensation channel inside. The condenser is equipped with an air inlet, an air outlet, and a water inlet that communicate with the condensation channel. The water inlet is connected to a cooling water pipe. The hot, humid drying airflow enters the condenser through the air inlet and flows upwards along the condensation channel towards the air outlet. During this process, cooling water flows downwards, exchanging heat with the hot, humid airflow and causing the moisture in the airflow to condense.

[0006] In addition to condensation and dehumidification, the condenser also filters lint. Cooling water wets the lint carried by the airflow and flushes it away through the drain or air inlet, thus achieving the purpose of lint filtration. However, the lint filtration effect of the condenser in existing drying equipment is not ideal and needs further improvement.

[0007] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0008] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem of poor filament filtration effect of existing drying equipment through condenser.

[0009] In a first aspect, the present invention provides a drying control method for a drying device, the drying device comprising a drying drum and a drying apparatus, the drying apparatus comprising a condenser, a fan, a drying duct, and a heating element disposed within the drying duct, the lower part of the condenser having an air inlet connected to the rear end of the drying drum, the top of the condenser having an air outlet connected to the air intake of the fan, the exhaust port of the fan being connected to the front end of the drying drum via the drying duct, and the upper part of the condenser having a cooling water inlet, the drying control method comprising:

[0010] To obtain the humidity of the clothes in the drying drum;

[0011] Depending on the humidity of the clothing, the fan speed can be selectively reduced and / or the flow rate of cooling water entering the condenser can be increased.

[0012] In the preferred embodiment of the drying control method for the aforementioned drying equipment, the step of "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser according to the humidity of the clothing" specifically includes:

[0013] The humidity of the clothing is compared with a preset humidity.

[0014] Based on the comparison results, the fan speed may be selectively reduced and / or the flow rate of cooling water entering the condenser may be increased.

[0015] In the preferred embodiment of the drying control method for the aforementioned drying equipment, the step of "selectively reducing the speed of the fan and / or increasing the flow rate of cooling water entering the condenser based on the comparison results" specifically includes:

[0016] If the humidity of the clothing is less than the preset humidity, the fan speed is reduced and / or the flow rate of cooling water entering the condenser is increased.

[0017] In the preferred embodiment of the drying control method for the aforementioned drying equipment, the step of "selectively reducing the speed of the fan and / or increasing the flow rate of cooling water entering the condenser based on the comparison results" specifically includes:

[0018] If the humidity of the clothing is not less than the preset humidity, the fan speed will not be reduced and / or the flow rate of cooling water entering the condenser will not be increased.

[0019] In the preferred embodiment of the drying control method of the above-mentioned drying equipment, the value of the preset humidity corresponds to the initial weight and / or material of the clothes in the drying drum.

[0020] In a preferred embodiment of the drying control method for the aforementioned drying equipment, when the humidity of the clothing is less than the preset humidity, the drying control method further includes:

[0021] Reduce the heating temperature of the heating element.

[0022] In a preferred embodiment of the drying control method for the aforementioned drying equipment, a partition plate is provided between the first inner wall and the second inner wall of the condenser. The partition plate divides the interior of the condenser into two condensation channels. The cross-section of the condensation channel is circular or elliptical. The air inlet is formed on the first inner wall. A flow-dividing structure is provided at the position opposite the partition plate and the air inlet. The flow-dividing structure is used to divide the airflow entering from the air inlet into two airflows. The two airflows can spiral upward along the corresponding condensation channels respectively.

[0023] In a preferred embodiment of the drying control method for the aforementioned drying equipment, a water guide groove is provided on the second inner sidewall, the top end of the water guide groove is corresponding to the water inlet, and the bottom end of the water guide groove extends to the top of the partition plate.

[0024] In a second aspect, the present invention also provides a drying apparatus, including a controller configured to perform the drying control method described above.

[0025] In the preferred technical solution of the above-mentioned drying equipment, the drying equipment is a washer-dryer combo or a clothes dryer.

[0026] When the above technical solution is adopted, the drying equipment of the present invention can detect the humidity of the clothes in the drying drum during the drying mode. When the humidity of the clothes is less than the preset humidity, the condenser can improve the filtration effect of the condenser on lint by reducing the speed of the fan and / or increasing the flow rate of the cooling water entering the condenser.

[0027] Furthermore, the preset humidity value corresponds to the initial weight and / or material of the clothes in the drying drum. This setting helps to more accurately determine when to reduce the fan speed and / or increase the flow rate of cooling water entering the condenser, which can both minimize the impact on the drying efficiency of the drying equipment and improve the filtration effect of lint.

[0028] Furthermore, when the humidity of the clothes is low, lowering the heating temperature of the heating element and using low-temperature drying can help save energy.

[0029] Furthermore, the drying equipment provided by the present invention, based on the above technical solution, includes the above-mentioned drying control method and thus possesses the technical effects of the above-mentioned drying control method. Compared with the drying equipment before the improvement, the drying equipment of the present invention has a better filtration effect on lint during the execution of the drying mode. Attached Figure Description

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a schematic diagram of the drying cylinder and drying device of the drying equipment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the condenser of the drying device of the present invention;

[0033] Figure 3 This is a schematic diagram of a portion of the condenser of the present invention;

[0034] Figure 4 This is a flowchart of the drying control method of the present invention;

[0035] Figure 5 This is a flowchart of an embodiment of the drying control method of the present invention.

[0036] List of reference numerals in the attached diagram:

[0037] 1. Drying drum;

[0038] 2. Condenser; 21. Air inlet; 22. Air outlet; 23. Water inlet; 24. Divider plate; 25. Water guide channel; 241. Diversion structure;

[0039] 3. Fan;

[0040] 4. Drying air duct;

[0041] 5. Corrugated pipe. Detailed Implementation

[0042] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] For example, although the embodiments described below are described in conjunction with a clothes dryer, the present invention is still applicable to other drying equipment, such as washer-dryer combos. Such adjustments and changes to the application do not deviate from the principles and scope of the present invention and should be limited to the protection scope of the present invention.

[0044] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that although the steps of the drying control method of the present invention are described in a specific order in this application, this order is not restrictive, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention.

[0045] It should be noted that in the description of this invention, terms such as "left" and "right" that indicate direction or positional relationship are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0046] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Specifically, such as Figure 1 and Figure 2 As shown, the dryer of the present invention includes a housing, inside which a drying drum 1 and a drying device are arranged. The drying device includes a condenser 2, a fan 3, a heating element (not shown in the figure), and a drying air duct 4. The heating element is installed in the drying air duct 4. The lower part of the condenser 2 is provided with an air inlet 21, and the top part of the condenser 2 is provided with an air outlet 22. The air inlet 21 of the condenser 2 is connected to the rear end of the drying drum 1, and the air outlet 22 of the condenser 2 is connected to the air intake of the fan 3. The exhaust port of the fan 3 is connected to one end of the drying air duct 4, and the other end of the drying air duct 4 is connected to the front end of the drying drum 1. The upper part of the condenser 2 is provided with a cooling water inlet 23, which is connected to a cooling water pipe.

[0048] During the drying process of the dryer, under the action of the fan 3, the drying airflow can circulate between the drying drum 1, the condenser 2, and the drying air duct 4. Under the action of the heating element, the airflow in the drying air duct 4 is heated into hot airflow, and then enters the drying drum 1 along the drying air duct 4, where it exchanges heat with the wet clothes in the drying drum 1 and carries away the moisture from the clothes, forming a relatively humid hot airflow. Then it enters the condensation channel in the condenser 2. After the condensation effect of the condensation channel, the moisture in the relatively humid hot airflow is condensed into water. The condensed airflow becomes a relatively dry cold airflow, and then enters the drying air duct 4. After being heated into a dry hot airflow by the heating element, it enters the next cycle. This process is repeated until the drying program ends.

[0049] For example, such as Figure 1 As shown, the fan 3 is installed on the top of the condenser 2. The air intake of the fan 3 is directly connected to the air outlet 22 of the condenser 2. The exhaust port of the fan 3 faces the front end of the drying cylinder 1 and is connected to the drying air duct 4 above the drying cylinder 1. The drying air duct 4 extends from the rear end of the drying cylinder 1 to the front end of the drying cylinder 1.

[0050] It should be noted that in practical applications, such as Figure 1 As shown, the condenser 2 can be set as an independent component, and a vent can be set on the rear wall of the drying cylinder 1. The vent is preferably connected to the air inlet 21 of the condenser 2 through the corrugated pipe 5. Alternatively, the condenser 2 can be integrated with the drying cylinder 1. For example, a shell can be set and connected to the rear wall of the drying cylinder 1. The shell and the rear wall of the drying cylinder 1 together form a condenser, and the air inlet of the condenser is directly formed on the rear wall of the drying cylinder 1, etc. Adjustments and changes to the specific setting of the condenser do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0051] Preferably, such as Figure 2 and Figure 3 As shown, a partition plate 24 is provided between the first inner wall and the second inner wall of the condenser 2 of the present invention. The partition plate 24 divides the interior of the condenser 2 into two condensation channels. The cross-section of the condensation channel is circular or elliptical. The air inlet 21 of the condenser 2 is formed on the first inner wall. A flow splitting structure 241 is provided at the position opposite to the air inlet 21 on the partition plate 24. The flow splitting structure 241 is used to split the airflow entering from the air inlet 21 into two airflows. The two airflows can spiral upward along the corresponding condensation channels respectively.

[0052] The partition plate 24 is vertically arranged, and its two sides are connected to the first inner wall and the second inner wall, respectively. After the airflow discharged from the drying cylinder 1 enters the condenser 2 through the air inlet 21, it first rushes towards the diversion structure 241 opposite the air inlet 21. The airflow is divided by the diversion structure 241. Part of the airflow enters the condensation channel on the left and spirals upward along the inner wall of the condensation channel, while the other part of the airflow enters the condensation channel on the right and spirals upward along the inner wall of the condensation channel. By making the airflow spiral upward, the flow path of the airflow can be extended, which is beneficial to improving the condensation effect.

[0053] Preferably, such as Figure 3 As shown, a water guide groove 25 is provided on the second inner side wall of the condenser 2. The top of the water guide groove 25 is corresponding to the water inlet 23, and the bottom of the water guide groove 25 extends to the top of the partition plate 24.

[0054] After entering the condenser 2 through the inlet 23, the cooling water enters the water guide channel 25 and then flows along the water guide channel 25 toward the bottom of the condenser 2. When the cooling water flows along the water guide channel 25 to the top of the partition plate 24, it collides with the top of the partition plate 24. Part of the cooling water splashes into the left condensation channel and exchanges heat with the humid airflow in the condensation channel. The other part of the cooling water splashes into the right condensation channel and exchanges heat with the humid airflow in the condensation channel.

[0055] Based on any of the dryers described above, the present invention also provides a drying control method for a dryer.

[0056] like Figure 4 As shown, the drying control method of the present invention includes the following steps:

[0057] S100: Obtain the humidity of the clothes in the dryer drum;

[0058] S200: Depending on the humidity of the clothing, selectively reduce the fan speed and / or increase the flow rate of cooling water entering the condenser.

[0059] During the drying process, the humidity of the clothes will gradually decrease. When the humidity of the clothes decreases to a certain level or a certain extent, reducing the fan speed or increasing the flow rate of cooling water entering the condenser will help improve the filtration effect of lint.

[0060] Specifically, as the humidity of clothing decreases, the amount of lint carried by the airflow gradually increases. By reducing the fan speed, the airflow speed in the condenser can be reduced, increasing the contact time between the airflow and the cooling water, which is more conducive to filtering the lint in the airflow. In addition, after reducing the fan speed, the upward blowing force on the lint is weakened, which also helps prevent the lint from being blown to the air outlet of the condenser. Furthermore, by increasing the cooling water flow rate, it is also more conducive to filtering the lint in the airflow, and the increased cooling water flow rate is more conducive to flushing away the filtered lint, which helps prevent the lint from accumulating at the bottom of the condenser.

[0061] It should be noted that "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser" includes three examples: Example 1, selectively reducing the fan speed; Example 2, selectively increasing the flow rate of cooling water entering the condenser; and Example 3, selectively reducing the fan speed and increasing the flow rate of cooling water entering the condenser.

[0062] In Example 1, the filtration effect of lint is improved by reducing the fan speed alone. In Example 2, the filtration effect of lint is improved by increasing the flow rate of cooling water entering the condenser alone. In Example 3, the filtration effect of lint is improved by both reducing the fan speed and increasing the flow rate of cooling water entering the condenser.

[0063] Preferably, such as Figure 5 As shown, step S200, "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser according to the humidity of the clothing," specifically includes:

[0064] S210: Compare the humidity of the clothes with the preset humidity;

[0065] S220: Based on the comparison results, selectively reduce the fan speed and / or increase the flow rate of cooling water entering the condenser.

[0066] A humidity sensor can be installed at the air inlet of the condenser to detect the humidity of the clothes by measuring the humidity of the humid airflow discharged from the drying drum.

[0067] Preferably, such as Figure 5 As shown, step S220, "based on the comparison results, selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser," specifically includes:

[0068] S221: If the humidity of the clothing is lower than the preset humidity, reduce the fan speed and / or increase the flow rate of cooling water entering the condenser.

[0069] When the humidity of the clothes is lower than the preset humidity, it means that the humidity of the clothes in the dryer is too low, resulting in more lint. In this case, reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser can help improve the lint filtration effect.

[0070] Preferably, such as Figure 5 As shown, step S210, "based on the comparison results, selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser," specifically includes:

[0071] S222: If the humidity of the clothing is not less than the preset humidity, the fan speed will not be reduced and / or the flow rate of cooling water entering the condenser will not be increased.

[0072] When the humidity of the clothes is greater than or equal to the preset humidity, it means that the humidity of the clothes in the drying drum is too high, resulting in less lint. At this time, there is no need to reduce the speed of the fan and / or increase the flow rate of the cooling water entering the condenser, which helps to ensure the drying efficiency of the drying equipment.

[0073] It should be noted that the present invention does not limit the specific value of the preset humidity. Those skilled in the art can flexibly set the specific setting of the preset humidity based on experiments or experience in practical applications.

[0074] Furthermore, it should be noted that, in practical applications, those skilled in the art can set the preset humidity value to a fixed value, or they can set multiple different values ​​for the preset humidity. When executing the drying program, the specific value of the preset humidity is determined according to the initial humidity and / or material of the clothes in the drying drum. In other words, the value of the preset humidity corresponds to the initial weight and / or material of the clothes in the drying drum, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should all be limited to the protection scope of the present invention.

[0075] Preferably, the preset humidity value corresponds to the initial weight and / or material of the clothes in the drying drum.

[0076] Example 1: The preset humidity value corresponds to the initial weight of the clothes in the dryer drum.

[0077] The initial weight of the clothes refers to the weight of the clothes before they are dried. The preset humidity value is positively correlated with the initial weight of the clothes.

[0078] For example, the initial weight of the clothing can be divided into a first weight range, a second weight range, and a third weight range from small to large. The preset humidity corresponding to the first weight range, the second weight range, and the third weight range is the first preset humidity, the second preset humidity, and the third preset humidity, respectively. The first preset humidity is less than the second preset humidity, and the second preset humidity is less than the third preset humidity.

[0079] Example 2: The preset humidity value corresponds to the material of the clothes in the dryer.

[0080] Different materials produce different amounts of lint during the drying process. For example, wool produces more lint, while silk produces less. For materials that produce more lint, the corresponding preset humidity value should be higher, and for materials that produce less lint, the corresponding preset humidity value should be lower.

[0081] Example 3: The preset humidity value corresponds to the initial weight and material of the clothes in the dryer drum.

[0082] In this example, the specific value of the preset humidity needs to take into account both the initial weight of the clothing and the material of the clothing.

[0083] Preferably, when the humidity of the clothing is lower than a preset humidity, the drying control method of the present invention further includes:

[0084] Reduce the heating temperature of the heating element.

[0085] When the humidity of the clothes is low, lowering the heating temperature of the heating element and using low-temperature drying can help save energy.

[0086] It should be noted that the dryer of the present invention includes a controller, which is configured to execute the above-described drying control method.

[0087] Furthermore, it should be noted that the drying control method provided in this embodiment can be stored as a program in a computer-readable storage medium. This storage medium includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0088] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0089] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A drying control method for a drying device, characterized in that, The drying equipment includes a drying drum and a drying device. The drying device includes a condenser, a fan, a drying duct, and a heating element disposed within the drying duct. The condenser has an air inlet at its lower part, which is connected to the rear end of the drying drum. The condenser has an air outlet at its top, which is connected to the air intake of the fan. The fan's exhaust outlet is connected to the front end of the drying drum through the drying duct. A cooling water inlet is provided at the upper part of the condenser. The drying control method includes: To obtain the humidity of the clothes in the drying drum; Depending on the humidity of the clothing, the fan speed can be selectively reduced and / or the flow rate of cooling water entering the condenser can be increased.

2. The drying control method for the drying equipment according to claim 1, characterized in that, The step of "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser based on the humidity of the clothing" specifically includes: The humidity of the clothing is compared with a preset humidity. Based on the comparison results, the fan speed may be selectively reduced and / or the flow rate of cooling water entering the condenser may be increased.

3. The drying control method for the drying equipment according to claim 2, characterized in that, The step of "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser based on the comparison results" specifically includes: If the humidity of the clothing is less than the preset humidity, the fan speed is reduced and / or the flow rate of cooling water entering the condenser is increased.

4. The drying control method for the drying equipment according to claim 2, characterized in that, The step of "selectively reducing the fan speed and / or increasing the flow rate of cooling water entering the condenser based on the comparison results" specifically includes: If the humidity of the clothing is not less than the preset humidity, the fan speed will not be reduced and / or the flow rate of cooling water entering the condenser will not be increased.

5. The drying control method for the drying equipment according to claim 2, characterized in that, The preset humidity value corresponds to the initial weight and / or material of the clothes in the drying drum.

6. The drying control method for the drying equipment according to claim 2, characterized in that, When the humidity of the clothing is lower than the preset humidity, the drying control method further includes: Reduce the heating temperature of the heating element.

7. The drying control method for the drying equipment according to any one of claims 1 to 6, characterized in that, A partition plate is provided between the first inner wall and the second inner wall of the condenser, which divides the interior of the condenser into two condensation channels. The cross-section of the condensation channel is circular or elliptical. The air inlet is formed on the first inner wall. A flow-dividing structure is provided at the position opposite the partition plate and the air inlet. The flow-dividing structure is used to divide the airflow entering from the air inlet into two airflows, and the two airflows can spiral upward along the corresponding condensation channels respectively.

8. The drying control method for the drying equipment according to claim 7, characterized in that, A water guide groove is provided on the second inner sidewall, the top end of the water guide groove is corresponding to the water inlet, and the bottom end of the water guide groove extends to the top of the partition plate.

9. A drying device, comprising a controller, characterized in that, The controller is configured to perform the drying control method according to any one of claims 1 to 8.

10. The drying equipment according to claim 9, characterized in that, The drying equipment is a washer-dryer combo or a clothes dryer.

Images