A reversing transmission mechanism, a clothes drying apparatus and a control method of a clothes drying apparatus

By adopting a reversing transmission mechanism with unidirectional bearings and inertial control, the problem of unstable airflow in existing dryer fans during forward and reverse rotation has been solved, achieving uniform drying of clothes and energy-saving effects, and simplifying production costs.

CN115899187BActive Publication Date: 2026-08-25QINGDAO HAIER WASHING MASCH CO LTD +2
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Patent Information

Application Number
CN202110912055.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-10
Publication Date
2026-08-25
Estimated Expiration
2041-08-10

AI Technical Summary

Technical Problem

The existing dryer has a complex reversing transmission mechanism, which increases the manufacturing cost and difficulty. In addition, the existing fan has an unstable air volume when rotating in both directions, resulting in clothes tangling and poor drying effect.

Method used

A simple reversing transmission mechanism is adopted, which uses a one-way bearing to realize the unidirectional rotation of the fan. Combined with inertial control and load weight detection, the rotation mode of the drive device is optimized to ensure that the fan always rotates in one direction.

Benefits of technology

It simplifies the production cost of the reversing transmission mechanism, improves the drying uniformity and efficiency of the dryer, reduces energy consumption, and prevents clothes from tangling and wrinkling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a reversing transmission mechanism, a clothes drying device and a control method of the clothes drying device. The reversing transmission mechanism comprises an input part, which can rotate forward and backward and is used for inputting power; an output assembly, which is connected with the input part and is used for outputting power; the output assembly comprises a connecting part, which is connected with the input part, the input part drives the connecting part to rotate forward and backward; a main body part, which is connected with the connecting part in a one-way rotation mode and is used for outputting power; when the connecting part rotates in a first direction, the main body part is driven to rotate in the first direction; when the connecting part rotates in a second direction, the main body part rotates in the first direction by inertia; and the first direction and the second direction are opposite to each other. The connecting part and the main body part of the output assembly can reverse by themselves, other transmission assemblies do not need to be added to realize the reversing between the input part and the output part, the structure of the reversing transmission mechanism is simplified, the production cost is saved, and the production and preparation are facilitated.
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Description

Technical Field

[0001] This invention belongs to the field of household appliances, specifically relating to a reversing transmission mechanism, a clothes drying device, and a control method for the clothes drying device. Background Technology

[0002] A clothes dryer is a household appliance that uses heated air to quickly evaporate the moisture from washed clothes. Clothes dryers are popular due to their fast drying capabilities. As the market demand for clothes dryers increases, the requirements for drying performance also rise. Since tumble dryers take several hours to dry clothes, and most current dryers rotate in one direction only, clothes often become tangled inside. This tangling not only increases wear and tear on the clothes but also affects the drying effect, resulting in clothes being either under-dried or over-dried. To solve this problem, dryer drums rotate in both directions. Since the airflow remains constant regardless of the drum's direction, the fan must maintain a constant airflow regardless of the direction. Current dryers generally use curved blade turbine fans. The advantages of this type of fan are small size, large air volume, and high efficiency, but it is not suitable for reverse operation. To solve the problem of clothes tangling, the current improvement is to add a separate fan to drive the dryer. However, this solution increases the cost of the equipment and the space occupied by the fan. Another solution to solve the problem of clothes tangling is a dryer with a forward and reverse drive device, specifically using a straight blade fan that can rotate in both directions. However, straight blade fans have a larger diameter, which not only takes up more space but also has lower drying efficiency.

[0003] Chinese patent application number CN107805929A discloses a dryer transmission system, including a drum for holding clothes, a fan for blowing air onto the drum, and a drive device for driving the drum. The drive device is connected to the fan and drives the fan to rotate. A reversing transmission mechanism is connected in series between the drive device and the fan. The reversing transmission mechanism can prevent the fan from rotating in the same direction as the drive device when it reverses its rotation.

[0004] The transmission system in the above scheme utilizes a reversing transmission mechanism between the drive unit and the fan. When the drive unit drives the drum to rotate forward and backward, the fan can always rotate in one direction by controlling the reversing transmission mechanism. However, the reversing transmission mechanism has a complex structure and needs to be implemented through electronic control, which increases the cost and difficulty of manufacturing.

[0005] In view of the above-mentioned technical deficiencies, this invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a reversing transmission mechanism with a simple structure that can ensure that the output direction remains unchanged when the input direction changes.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A reversing transmission mechanism, comprising,

[0009] The input section can rotate in both directions and is used to input power;

[0010] An output component, connected to the input section, is used to output power;

[0011] The output component includes,

[0012] The connecting part is connected to the input part, and the input part drives the connecting part to rotate in both directions;

[0013] The main body is rotatably connected to the connecting part in one direction and is used to output power;

[0014] When the connecting part rotates along the first direction, it drives the main body to rotate along the first direction; when the connecting part rotates along the second direction, the main body rotates along the first direction due to inertia.

[0015] The first direction and the second direction are opposite to each other.

[0016] By adopting the above scheme, the connecting part and the main body of the output component can switch directions on their own without the need to add other transmission components to achieve the switching between the input and output parts. This simplifies the structure of the switching transmission mechanism, saves production costs, and facilitates manufacturing.

[0017] Furthermore, the input section is a rotating shaft structure;

[0018] The connecting part is sleeve-shaped and is disposed on the input part;

[0019] The main body is sleeve-shaped and is fitted around the outer periphery of the connecting part;

[0020] Preferably, the output component includes a one-way bearing, and the connecting part is the inner ring of the one-way bearing. When the inner ring rotates in the first direction, it drives the outer ring to rotate in the first direction. When the inner ring rotates in the second direction, it idles relative to the outer ring.

[0021] Furthermore, the outer ring of the one-way bearing forms the main body of the output assembly;

[0022] Alternatively, the output component may further include an output section disposed on the outer ring body and fixed relative to the outer ring body, wherein the output section and the outer ring body cooperate to form the main body of the output component.

[0023] By adopting the above scheme, if the output component is a one-way bearing structure, it can integrate output power and reversing function into one, resulting in a relatively simple structure. Furthermore, one-way bearings can be directly purchased at a low cost, reducing the overall cost of the reversing transmission mechanism. Moreover, the connection between the one-way bearing and the input section of the shaft structure is simple and easy to manufacture. If the output component is formed by a one-way bearing and an output section, the output section can be manufactured in various forms to match and connect with the equipment to be installed, improving the applicability of the reversing transmission mechanism.

[0024] A second objective of the present invention is to provide a clothes drying device having the above-mentioned reversing transmission mechanism, comprising a drum;

[0025] A fan, connected to the output component, is used to deliver air into the drum;

[0026] A drive unit, connected to the input section and the roller, is used to drive the input section and the roller to rotate in both directions;

[0027] The drive device drives the fan to rotate in one direction through the reversing transmission mechanism.

[0028] By adopting the above scheme, the reversing action of the reversing transmission mechanism enables the drive device to drive the drum to rotate in both directions, while ensuring that the fan connected to the output component always rotates in one direction. This prevents clothes inside the drum from getting tangled or wrinkled during the drying process. The reversing transmission mechanism enables the fan to provide a stable unidirectional airflow to the drum, improving drying uniformity and efficiency, saving drying time, and reducing energy consumption.

[0029] A third objective of this invention is to provide a method for controlling the aforementioned clothes drying equipment, comprising the steps of:

[0030] The control device controls the rotation and stop time, and controls the drive device to rotate in the first direction before the fan stops rotating in the first direction due to inertia.

[0031] Since the output component drives the fan to rotate by inertia for a limited time, controlling the drive device to rotate in the first direction before the fan stops rotating can ensure that the fan can continue to rotate and blow air into the drum.

[0032] Furthermore, before controlling the drive device to rotate,

[0033] Obtain the weight of the load and compare it with the set parameters;

[0034] If the load weight is less than the set parameter, the drive device is controlled to rotate in the first direction; otherwise, the drive device is controlled to rotate in both directions.

[0035] By adopting the above scheme, when the load weight is small, that is, when there are fewer items to be dried in the drum, even if the drum rotates in the same direction, it is not easy for the items to be dried to entangle; when the load weight is large, controlling the drive device to rotate alternately in both directions can prevent the items to be dried from entangled and facilitate drying.

[0036] Furthermore, before controlling the drive device to rotate in both directions, the drive device is controlled to rotate in the first direction for a set time;

[0037] Preferably, the set time is longer than the duration of a single forward and reverse rotation.

[0038] By adopting the above scheme, sufficient driving force along the first direction can be provided to the fan before the drive device rotates in both directions, preventing the fan from rotating in the first direction for a short time due to insufficient driving force during the rotation process.

[0039] Furthermore, when the drive device rotates in both directions, the duration of a single rotation along the first direction is greater than the duration of stopping rotation along the first direction, the duration of rotation along the second direction, and the duration of stopping rotation along the second direction, respectively.

[0040] Preferably, the duration of a single rotation along the first direction is greater than the total duration of rotation along the second direction and the time of stopping rotation during the reversal process.

[0041] By adopting the above scheme, it can be ensured that the fan has sufficient driving force in the first direction, and the time of relative rotation between the drive device and the fan is short, ensuring that the fan has sufficient inertial motion during the rotation of the drum to always rotate in the first direction.

[0042] Furthermore, before controlling the drive device to rotate in both directions, the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first direction and the second direction are obtained based on the load weight;

[0043] The rotation-to-stop ratio includes the ratio of the duration of rotation and stop along the first direction and the ratio of the duration of rotation and stop along the second direction;

[0044] Preferably, the method for obtaining the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first direction and the second direction based on the load weight includes:

[0045] The load weight is divided into multiple ranges, and each range is assigned a rotation-to-stop ratio and a rotation duration ratio.

[0046] Determine the range in which the load weight falls, and then control the selection of the corresponding rotation-to-stop ratio and rotation duration ratio for that range.

[0047] By adopting the above scheme, the rotation-to-stop ratio and rotation time ratio are selected according to the load weight. While ensuring that the drive device drives the fan to rotate in the first direction before the fan stops rotating, the matching degree between the fan rotation mode and the load can be improved, thereby improving the drying efficiency of the items to be dried.

[0048] Furthermore, it also includes obtaining the drying process;

[0049] After obtaining the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first and second directions,

[0050] Based on the obtained drying program, stop-start ratio, and duration ratio, the selectable stop-start duration and the duration of a single rotation along the first and second directions are controlled.

[0051] By adopting the above scheme, since the drying speed is different due to the different types and materials of the items to be dried, the drying program selected is different and the drying time is also different under the same load. After determining the drive device's rotation-to-stop ratio and forward / reverse rotation time ratio, the time is adjusted proportionally according to the selected drying program, which can ensure that the fan's rotation-to-stop ratio and rotation-to-stop ratio are adapted to different drying programs.

[0052] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0053] 1. The connection part and the main body of the output component can switch directions on their own without the need to add other transmission components to achieve the switching between the input and output parts. This simplifies the structure of the switching transmission mechanism, saves production costs, and facilitates manufacturing.

[0054] 2. The output component is a one-way bearing structure, which can integrate output power and reversing function into one. The structure is relatively simple. In addition, the one-way bearing can be purchased directly and the cost is low, which reduces the overall cost of the reversing transmission mechanism. Furthermore, the connection between the one-way bearing and the input part of the shaft structure is simple and easy to manufacture.

[0055] 3. The drying device of the present invention enables the driving device to drive the drum to rotate in both directions through the reversing transmission mechanism, and also ensures that the fan connected to the output component always rotates in one direction. This prevents the clothes in the drum from getting tangled or wrinkled during the drying process. The reversing transmission mechanism enables the fan to provide a stable unidirectional airflow to the drum, improving the uniformity and efficiency of drying, saving drying time, and reducing energy consumption.

[0056] 4. Since the output component drives the fan to rotate by inertia for a limited time, controlling the drive device to rotate in the first direction before the fan stops rotating can ensure that the fan can continue to rotate and blow air into the drum.

[0057] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0058] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0059] Figure 1 This is an exploded structural diagram of the reversing transmission mechanism of the present invention;

[0060] Figure 2 This is a schematic diagram of the fan mounting structure of the present invention;

[0061] Figure 3 This is a simplified structural diagram of the clothes drying device of the present invention;

[0062] Figure 4 This is another schematic diagram of the clothes drying device of the present invention;

[0063] Figure 5 This is a flowchart illustrating the control method of the clothes drying equipment of the present invention.

[0064] In the diagram: 1. Reversing transmission mechanism; 11. Input section; 111. Mounting protrusion; 12. Output assembly; 121. Connecting section; 1211. First keyway; 122. Main body; 1221. Second keyway; 1222. Fixing key; 2. Drying equipment; 21. Drum; 22. Fan; 23. Drive unit; 24. Drive belt; 25. Transmission belt; 26. Air inlet; 27. Air duct; 28. Pulley.

[0065] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0067] In the description of this invention, it should be noted that the terms "upper," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] like Figure 1 As shown, the present invention provides a reversing transmission mechanism 1, comprising: an input section 11, rotatable in both directions, for inputting power; and an output component 12 connected to the input section 11 for outputting power. The output component 12 includes: a connecting section 121 connected to the input section 11, the input section 11 driving the connecting section 121 to rotate in both directions; and a main body 122 rotatably connected to the connecting section 121 for outputting power. When the connecting section 121 rotates in a first direction, it drives the main body 122 to rotate in the first direction. When the connecting section 121 rotates in a second direction, the main body 122 rotates in the first direction due to inertia. The first and second directions are opposite to each other.

[0070] The connection part 121 and the main body part 122 of the output component 12 of the present invention can switch directions on their own without the need to add other transmission components to realize the switching between the input part 11 and the output part. This simplifies the structure of the switching transmission mechanism 1, saves production costs, and facilitates manufacturing.

[0071] The input part 11 is a rotating shaft structure; the connecting part 121 is sleeve-shaped and is disposed on the input part 11; the main body part 122 is sleeve-shaped and is sleeved on the outer periphery of the connecting part 121.

[0072] Furthermore, the output component 12 includes a one-way bearing, and the connecting part 121 is the inner ring of the one-way bearing, which is fixedly connected to the input part 11; when the inner ring rotates in the first direction, it drives the outer ring to rotate in the first direction, and when the inner ring rotates in the second direction, it idles relative to the outer ring.

[0073] like Figure 1 As shown, the inner circumference of the connecting part 121 is provided with a first keyway 1211, and the input part 11 is provided with a mounting protrusion 111 that matches and connects with the first keyway 1211. After the first keyway 1211 and the mounting protrusion 111 are matched and connected, the axial direction of the one-way bearing is limited by the limiting structure, and the connecting part 121 and the input part 11 are relatively fixed. Alternatively, after the first keyway 1211 and the mounting protrusion 111 are matched and connected, the one-way bearing is locked by the locking structure, and the connecting part 121 and the input part 11 are relatively fixed.

[0074] Alternatively, the inner circumference of the connecting part 121 may have a spline hole structure, and the input part 11 may have spline teeth that match and connect with the spline hole. After the spline hole and spline teeth are matched and connected, the axial direction of the one-way bearing is limited by a limiting structure, and the connecting part 121 and the input part 11 are relatively fixed. Alternatively, after the spline hole and spline teeth are matched and connected, the one-way bearing is locked by a locking structure, and the connecting part 121 and the input part 11 are relatively fixed.

[0075] The outer ring of the one-way bearing forms the main body 122 of the output assembly 12, which is used to connect with the structure to be installed and output power. That is, the output assembly 12 is a one-way bearing structure, which can integrate power output and reversing function into one, and the structure is relatively simple. In addition, the one-way bearing can be purchased directly and the cost is low, which reduces the overall cost of the reversing transmission mechanism 1. Furthermore, the connection between the one-way bearing and the input part 11 of the rotating shaft structure is simple and easy to manufacture.

[0076] Alternatively, the output assembly 12 may further include an output section disposed on the outer ring body and fixed relative to the outer ring body. The output section cooperates with the outer ring body to form the main body 122 of the output assembly 12. The output section is used to connect with the structure to be installed and output power. In this solution, the output assembly 12 is formed by a one-way bearing and an output section. The output section can be made in various forms to match and connect with the equipment to be installed, thereby improving the applicability of the reversing transmission mechanism 1.

[0077] like Figure 1 As shown, the outer ring of the one-way bearing is provided with a second keyway 1221, and a fixing key 1222 is provided in the second keyway 1221 for connection with the structure to be installed or the output part. The structure to be installed or the output part is provided with a mounting component that matches and connects with the fixing key 1222. After the fixing key 1222 and the mounting component are matched and connected, the outer ring of the one-way bearing and the structure to be installed or the output part are relatively fixed.

[0078] As one implementation, the structure to be installed is a fan 22, and the output part is a pulley 28 structure.

[0079] The input part 11 of the reversing transmission mechanism 1 is connected to the output structure of the drive device, and the output structure of the drive device drives the input part 11 to rotate in both directions.

[0080] As one implementation, the drive device includes at least two output structures, each of which is connected to a reversing transmission mechanism 1. The output directions of the two reversing transmission mechanisms 1 are the same or opposite. Preferably, the output structure of the drive device is the input part 11 of the reversing transmission mechanism 1. More preferably, the drive device is a motor and the output structure is a rotating shaft.

[0081] like Figures 2 to 4 As shown, a clothes drying device 2 of the present invention having the above-mentioned reversing transmission mechanism 1 includes a drum 21; a fan 22 connected to the output component 12 for supplying air into the drum 21; and a drive device 23 connected to the input part 11 and the drum 21 for driving the input part 11 and the drum 21 to rotate in both directions; the drive device 23 drives the fan 22 to rotate in one direction through the reversing transmission mechanism 1.

[0082] like Figure 2 As shown, the fan 22 is connected to the outer ring of the one-way bearing, and the outer ring of the one-way bearing forms the main body 122 of the output assembly 12; the inner ring of the one-way bearing is connected to the output component of the drive device 23, and the output structure of the drive device 23 forms the input part 11 of the reversing transmission mechanism 1.

[0083] As an alternative to the above solution, such as Figure 3 and Figure 4 As shown, the output assembly 12 further includes an output section fixedly connected to the outer ring of the one-way bearing. The output section and the outer ring of the one-way bearing cooperate to form the main body 122 of the output assembly 12. The output section is a pulley 28 structure. The fan 22 is drivenly connected to the pulley 28, and the rotation direction of the fan 22 is the same as the rotation direction of the pulley 28, used to deliver air into the drum 21. Preferably, the fan 22 and the pulley 28 are drivenly connected by a transmission belt 25.

[0084] The drive device 23 is connected to the roller 21 via a drive belt 24, which is sleeved on the outer circumference of the roller 21 and drives the roller 21 to rotate.

[0085] The fan 22, the drive device 23, and the reversing transmission mechanism 1 are all located at the rear of the housing of the clothes drying equipment 2. The rear of the housing is provided with an air inlet 26 and an air duct 27 for the fan 22 to ventilate into the drum 21.

[0086] In one implementation, the drive device 23 is an electric motor.

[0087] The clothes drying device 2 of the present invention, through the reversing action of the reversing transmission mechanism 1, enables the drive device 23 to drive the drum 21 to rotate in both directions, and also ensures that the fan 22 connected to the output component 12 always rotates in one direction. This prevents the clothes in the drum 21 from getting tangled or wrinkled during the drying process. The reversing transmission mechanism 1 enables the fan 22 to provide a stable unidirectional airflow to the drum 21, improving the uniformity and efficiency of drying, saving drying time, and reducing energy consumption.

[0088] like Figure 5As shown, a method for controlling the above-mentioned clothes drying equipment according to the present invention includes the steps of controlling the rotation and stop time of the drive device, and controlling the drive device to rotate in the first direction before the fan stops rotating in the first direction due to inertia.

[0089] Since the output component drives the fan to rotate by inertia for a limited time, controlling the drive device to rotate in the first direction before the fan stops rotating can ensure that the fan can continue to rotate and blow air into the drum.

[0090] The drying equipment of the present invention includes a speed detection device for detecting the speed of a fan. The control method of the drying equipment further includes the step of, during the execution of the drying program, detecting that the fan speed is less than a set speed, and controlling the drive device to rotate in a first direction.

[0091] The clothes drying equipment of the present invention also includes a weight detection device for detecting the load weight.

[0092] There are steps before the drive unit can be controlled to rotate.

[0093] S1. Obtain the weight of the load and compare it with the set parameters;

[0094] S2. If the load weight is less than the set parameter, control the drive device to rotate in the first direction; otherwise, control the drive device to rotate in both directions.

[0095] When the load is small, that is, when there are few items to be dried in the drum, even if the drum rotates in the same direction, the items are not likely to get tangled. When the load is large, controlling the drive device to rotate in both directions alternately can prevent the items from getting tangled and facilitate drying.

[0096] Before controlling the drive device to rotate forward and backward in step S2, there is a step S20, which controls the drive device to rotate along the first direction for a set time. Preferably, the set time is at least greater than the duration of a single forward and backward rotation.

[0097] As one implementation scheme, the set time is 25 minutes.

[0098] Furthermore, in step S2, when controlling the drive device to rotate in both directions, the duration of a single rotation along the first direction is greater than the duration of stopping rotation along the first direction, the duration of rotation along the second direction, and the duration of stopping rotation along the second direction, respectively.

[0099] Furthermore, the duration of a single rotation along the first direction is greater than the total duration of rotation along the second direction and the time spent stopping during the reversal process.

[0100] As one implementation method, the duration of a single forward and reverse cycle is 30 seconds.

[0101] With a fixed duration for a single forward and reverse rotation, this scheme can increase the time ratio of the drive device rotating in the first direction, drive the fan to rotate in the first direction as much as possible, ensure that the fan has sufficient driving force in the first direction, and thus the fan has sufficient inertial motion to always rotate in the first direction.

[0102] Before controlling the drive device to rotate in both directions in step S2, there is also step S200, which obtains the rotation-to-stop ratio and the time ratio of a single rotation along the first direction and the second direction based on the load weight.

[0103] As one implementation, step S200 occurs before step S20.

[0104] The rotation-to-stop ratio includes the ratio of the duration of rotation and stop along the first direction and the ratio of the duration of rotation and stop along the second direction.

[0105] During drum rotation, the fan blows air into the drum. The greater the load, the stronger the resistance to the fan's airflow, resulting in a shorter time for the fan to rotate due to inertia. Therefore, the rotation-to-stop ratio and reversal time ratio need to be adjusted according to the load weight. Specifically, the greater the load weight, the longer the drive unit rotates in the first direction during a single forward and reverse rotation. Furthermore, a heavier load means more material to be dried, increasing the likelihood of tangling. To reduce the probability of tangling, with a fixed duration of rotation in the second direction and a fixed duration of stopping in the second and first directions, the rotation time in the second direction should be maximized to minimize tangling caused by rotation in the first direction. This means reducing the stopping time and increasing the rotation-to-stop ratio.

[0106] The methods for obtaining the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first and second directions based on the load weight include:

[0107] The load weight is divided into multiple ranges, and each range is assigned a rotation-to-stop ratio and a rotation duration ratio.

[0108] Determine the range in which the load weight falls, and then control the selection of the corresponding rotation-to-stop ratio and rotation duration ratio for that range.

[0109] Since the load weight is variable, if each load weight corresponds to a start-stop ratio and a rotation time ratio, the dryer would need a huge database, which would increase the difficulty of manufacturing. Dividing the load weight into multiple ranges and setting a start-stop ratio and a rotation time ratio for each range can reduce the workload of inputting the settings into the database and reduce the manufacturing difficulty.

[0110] As one implementation scheme, the load weight range includes (G1, G2], (G2, G3], (G3, G4]...(Gn, Gn+1]; the corresponding rotation-to-stop ratio is as follows: rotation time t1 along the first direction: rotation time t10 along the first direction: rotation time t2 along the second direction: rotation time t20 along the second direction are respectively (T11:T110:T21:T210), (T12:T120:T22:T220), (T13:T130:T23:T230)...(T1n:T1n0:T2n:T2n0], and the proportions of T1i and T2i (i=1...n) in the rotation-to-stop ratio increase sequentially, and T1i / T2i (i=1...n) increases sequentially.

[0111] Where t1 > t2 > t10; t2 > t20, and t10 and t20 may be equal or unequal. The set parameter is G1.

[0112] As one implementation scheme, T1i / T2i = 5 / 3.

[0113] The control method of the drying equipment of the present invention further includes the step of obtaining a drying program; the step of obtaining the drying program is located before or after step S1 and obtaining the weight of the load.

[0114] Before step S20, there is a step of determining the duration of the control drive device to rotate in the first direction for a set time based on the load weight and the drying program.

[0115] After obtaining the rotation-to-stop ratio and the time ratio of a single rotation along the first and second directions, the rotation-to-stop duration and the time ratio of a single rotation along the first and second directions are controlled and selected based on the obtained drying program, rotation-to-stop ratio, and time ratio.

[0116] As one implementation scheme, t2 ≤ 10s.

[0117] Specifically, as one implementation scheme, the control method of the clothes drying equipment of the present invention includes the following steps:

[0118] S01. Receive the signal to start the drying equipment and start the drying equipment;

[0119] S02, Obtain the drying program;

[0120] S1. Obtain the weight of the load and compare it with the set parameters;

[0121] S2000: Determines that the load weight is greater than the set parameter;

[0122] S2a. Determine the duration of the control drive device to rotate in the first direction based on the load weight and drying program.

[0123] S200: Obtain the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first and second directions based on the load weight;

[0124] S201. Based on the obtained drying program, stop-start ratio, and duration ratio, control the selection of the stop-start duration and the duration of a single rotation along the first and second directions;

[0125] S20. Control the drive device to rotate in the first direction for a set time;

[0126] S20001, Control the forward and reverse rotation of the drive device.

[0127] The step S2a is either before or after step S200; the step S2a is either before or after step S201.

[0128] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for a clothes drying device, characterized in that, The clothes drying equipment includes a drum, a fan, a reversing transmission mechanism, and a drive unit. The reversing transmission mechanism includes an input section and an output component. The input section can rotate in both directions to input power. The output component is connected to the input section to output power. The output component includes a connecting section connected to the input section and a main body section rotatably connected to the connecting section in one direction. The main body section is used to output power. When the connecting section rotates in a first direction, it drives the main body section to rotate in the first direction. When the connecting section rotates in a second direction, the main body section rotates in the first direction due to inertia. The first direction and the second direction are opposite to each other. The fan is connected to the output component to deliver air into the drum, the drive device is connected to the input part and the drum to drive the input part and the drum to rotate in both directions, and the drive device drives the fan to rotate in one direction through the reversing transmission mechanism; The control method includes the following steps: The control device is controlled to rotate in the first direction before the fan stops rotating in the first direction due to inertia.

2. The control method for the clothes drying equipment according to claim 1, characterized in that, Before controlling the drive unit to rotate, Obtain the weight of the load and compare it with the set parameters; If the load weight is less than the set parameter, the drive device is controlled to rotate in the first direction; otherwise, the drive device is controlled to rotate in both directions.

3. The control method for the clothes drying equipment according to claim 2, characterized in that, Before controlling the drive device to rotate in both directions, control the drive device to rotate in the first direction for a set time.

4. The control method for the clothes drying equipment according to claim 3, characterized in that, The set time is greater than the duration of a single forward and reverse rotation.

5. The control method for the clothes drying equipment according to any one of claims 2-4, characterized in that, When the drive device rotates in both directions, the duration of a single rotation along the first direction is greater than the duration of stopping rotation along the first direction, the duration of rotation along the second direction, and the duration of stopping rotation along the second direction, respectively.

6. The control method for the clothes drying equipment according to claim 5, characterized in that, The duration of a single rotation along the first direction is greater than the total duration of rotation along the second direction and the time spent stopping during the reversal process.

7. The control method for the clothes drying equipment according to claim 2, characterized in that, Before controlling the drive device to rotate in both directions, the rotation-to-stop ratio and the time ratio of a single rotation along the first and second directions are obtained based on the load weight. The rotation-to-stop ratio includes the ratio of the duration of rotation and stop along the first direction and the ratio of the duration of rotation and stop along the second direction.

8. The control method for the clothes drying equipment according to claim 7, characterized in that, The methods for obtaining the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first and second directions based on the load weight include: The load weight is divided into multiple ranges, and each range is assigned a rotation-to-stop ratio and a rotation duration ratio. Determine the range in which the load weight falls, and then control the selection of the corresponding rotation-to-stop ratio and rotation duration ratio for that range.

9. The control method for the clothes drying equipment according to claim 7 or 8, characterized in that, It also includes obtaining the drying process; After obtaining the rotation-to-stop ratio and the ratio of the duration of a single rotation along the first and second directions, The drying program controls the selection of rotation and stop times and the duration of a single rotation along the first and second directions.

10. The control method for the clothes drying equipment according to claim 1, characterized in that, The input section is a rotating shaft structure; The connecting part is sleeve-shaped and is disposed on the input part; The main body is sleeve-shaped and is fitted around the outer periphery of the connecting part.

11. The control method for the clothes drying equipment according to claim 10, characterized in that, The output component includes a one-way bearing, and the connecting part is the inner ring of the one-way bearing. When the inner ring rotates in the first direction, it drives the outer ring to rotate in the first direction. When the inner ring rotates in the second direction, it idles relative to the outer ring.

12. The control method for the clothes drying equipment according to claim 10 or 11, characterized in that, The outer ring of the one-way bearing forms the main body of the output assembly; Alternatively, the output component may further include an output section disposed on the outer ring body and fixed relative to the outer ring body, wherein the output section and the outer ring body cooperate to form the main body of the output component.

Citation Information

Patent Citations

  • Clothes dryer drive system

    CN107805929A

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    RU2008147366A