Clothes airing machine and control method thereof
By using a light-guiding winding area and a light detection component in a clothes drying machine, the detection of the number of wire rope turns is simplified, the problem of inaccurate detection in existing clothes drying machines is solved, and the detection accuracy of the clothes drying rod position is improved.
Patent Information
- Application Number
- CN202410240270.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The detection of the number of wire rope coils in existing clothes drying machines is inaccurate and complicated, resulting in inaccurate detection of the position of the clothes drying rod.
The winding wheel with light-guiding winding area is combined with the detection components of the transmitting and receiving parts to judge the number of turns of the lifting rope by the light transmission and obstruction, thus simplifying the detection process.
A more accurate and simple detection of the number of wire rope turns is achieved, and the accuracy of clothesline position detection is improved.
Smart Images
Figure CN120625326A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of clothes drying, and in particular to a clothes drying machine and a control method thereof. Background Art
[0002] In current electric clothes drying machines, the clothesline can be stopped not only at the lowest and highest positions, but also at any intermediate position between the lowest and highest positions. Some methods use a distance measurement module to detect the position of the clothesline. By setting a reflector on the clothesline, the distance measurement module transmits a signal to the reflector and receives the signal reflected by the reflector to measure the position of the clothesline. However, the signal transmitted by the distance measurement module is easily blocked by foreign objects, resulting in inaccurate detection. Some methods use a Hall sensor to detect the number of turns of the winding wheel. The winding wheel rotates in both forward and reverse directions. The distance the wire rope moves is then calculated based on the length of the wire rope on each turn of the winding wheel. This involves many components and the calculation is complex. Summary of the Invention
[0003] The object of the present invention is to provide a clothes drying machine and a control method thereof, so as to solve the technical problems existing in the prior art of inaccurate and complex detection of the number of wire rope turns.
[0004] As conceived above, the technical solution adopted by the present invention is:
[0005] A clothes drying machine, comprising:
[0006] clothes drying pole;
[0007] The lifting mechanism includes a winding wheel and a lifting rope, wherein the winding wheel has a winding area capable of guiding light, the lifting rope is wound around the winding area and connected to the clothes drying rod, and an accommodating cavity is formed inside the winding wheel;
[0008] The detection component includes a transmitting part and a receiving part, one of the transmitting part and the receiving part is arranged in the accommodating cavity, and the other is arranged outside the accommodating cavity. The receiving part is used to receive the light emitted by the transmitting part. Along the axial direction of the winding wheel, the winding area is located in the detection field of view of the detection component.
[0009] Preferably, the transmitting part is arranged in the accommodating cavity, and the receiving part is arranged outside the accommodating cavity.
[0010] Preferably, a plurality of receiving portions are provided, and the plurality of receiving portions are distributed at intervals around the circumference of the winding wheel.
[0011] Preferably, the receiving part is fixed in position, the emitting part is fixedly connected to the winding wheel, and the emitting part emits light along its own length direction and around its own circumference.
[0012] Preferably, the transmitting part and the receiving part are fixed in position, the transmitting part and the winding wheel are independent of each other and spaced apart, the receiving part and the winding wheel are independent of each other and spaced apart, and the transmitting part emits light toward the receiving part.
[0013] Preferably, the winding wheel is a split structure, and the winding wheel includes at least two shells that are detachably connected, and the shells are buckled together to form the accommodating cavity.
[0014] Preferably, the detection components are provided in multiple groups, and the multiple groups of detection components are arranged at intervals around the circumference of the winding wheel.
[0015] Preferably, the detection components are provided in two groups. In one group of the detection components, the transmitting part is provided in the accommodating cavity, and the receiving part is provided outside the accommodating cavity; in the other group of the detection components, the receiving part is provided in the accommodating cavity, and the transmitting part is provided outside the accommodating cavity.
[0016] Preferably, the winding wheel is a light guide.
[0017] A method for controlling a clothes drying machine, using the clothes drying machine as described above, comprising:
[0018] The emitting portion emits light;
[0019] The controller obtains the signal from the receiving part. If the receiving part does not receive light, it determines that the corresponding position is blocked by the lifting rope. If the receiving part receives light, it determines that the corresponding position does not have the lifting rope.
[0020] The controller determines the number of turns of the lifting rope on the winding wheel according to the signal from the receiving unit.
[0021] Preferably, two groups of detection components are provided corresponding to each winding wheel, and the two groups of detection components are evenly spaced around the circumference of the winding wheel, and the number of turns of the lifting rope is determined based on the signals received by the two groups of receiving parts.
[0022] Beneficial effects of the present invention:
[0023] The clothes drying machine proposed in the present invention has a winding area that can guide light. When the transmitting part emits light, the winding area allows the light to pass through, while the lifting rope will block the light. Therefore, if the receiving part cannot receive the light, it is determined that the corresponding position is blocked by the lifting rope. If the receiving part receives the light, it is determined that the corresponding position does not have the lifting rope. Therefore, based on the signal of the receiving part, it can be determined whether the receiving part receives the light, and then the number of turns of the lifting rope on the winding wheel can be determined. By directly detecting the lifting rope to obtain the number of turns of the lifting rope, the detection is simpler and more direct, no light reflection is required, and the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a partial structural side view of a first type of clothes drying machine provided in Example 1 of the present invention;
[0025] Figure 2 This is a partial structural front view of the first clothes drying machine provided by the first embodiment of the present invention;
[0026] Figure 3 yes Figure 2 AA sectional view;
[0027] Figure 4 This is a partial structural side view of a second type of clothes drying machine provided in the first embodiment of the present invention;
[0028] Figure 5 This is a partial structural side view of a third type of clothes drying machine provided in the first embodiment of the present invention;
[0029] Figure 6 This is a partial structural front view of a fourth clothes drying machine provided in the first embodiment of the present invention;
[0030] Figure 7 This is the process of the control method of the clothes drying machine provided by the second embodiment of the present invention. Figure 1 ;
[0031] Figure 8 This is the process of the control method of the clothes drying machine provided by the second embodiment of the present invention. Figure 2 .
[0032] In the picture:
[0033] 10. Reel; 11. Accommodation cavity; 12. Winding groove;
[0034] 20. Lifting rope;
[0035] 30. Detection component; 31. Transmitter; 32. Receiver. DETAILED DESCRIPTION
[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.
[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.
[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0040] Example 1
[0041] See also Figure 1 and Figure 2 An embodiment of the present invention provides a clothes drying machine, including a main unit, a clothes drying rod and a lifting mechanism, wherein the clothes drying rod is arranged below the main unit; the lifting mechanism includes a winding wheel 10 and a lifting rope 20 wound around the winding wheel 10, the lifting rope 20 is connected to the clothes drying rod, and a plurality of winding grooves 12 are provided on the outer peripheral surface of the winding wheel 10, and the lifting rope 20 is wound around the winding wheel 10 and embedded in the winding grooves 12.
[0042] The clothes drying machine also includes a drive mechanism configured to rotate the reel 10 about a first axis to wind or lower the lifting cord 20. The first axis can extend horizontally or vertically. The lifting cord 20 is wound around the reel 10. Because the lifting cord 20 is embedded in the winding groove 12, the groove 12 acts as a position limiter for the lifting cord 20, ensuring stable winding and lowering of the lifting cord 20.
[0043] The drive mechanism is used to drive the reel 10 to rotate. The drive mechanism may include a motor and a reduction mechanism, with the motor being disposed at the input end of the reduction mechanism and the reel 10 being disposed at the output end of the reduction mechanism. Depending on actual needs, a single-stage reduction or a double-stage reduction may be provided. For example, the reduction mechanism may include a driving gear, a driven gear, and a transmission shaft, with the driving gear being disposed on the motor shaft of the motor, the driven gear being disposed on the transmission shaft, the reel 10 being connected to the transmission shaft, and the driving gear and the driven gear being meshed.
[0044] The reel 10 has a light-guiding winding area, around which the lift cord 20 is wound. The interior of the reel 10 forms a receiving chamber 11. It will be appreciated that a winding groove 12 is provided within the winding area, around which the lift cord 20 is wound. Because the winding area is light-guiding, light is allowed to pass from within the receiving chamber 11 through the winding area to the exterior, and also from the exterior to the interior.
[0045] In some embodiments, the reel 10 can be configured so that only the winding area can guide light. In some embodiments, the reel 10 can be configured as an integrated structure, so that the entire reel 10 can guide light, facilitating processing and production. In this embodiment, the reel 10 is a light guide. The reel 10 is made of an existing light-guiding material, such as acrylic resin, polycarbonate, or epoxy resin.
[0046] The clothes drying machine also includes a detection component 30, which includes a transmitting part 31 and a receiving part 32. One of the transmitting part 31 and the receiving part 32 is arranged in the accommodating cavity 11, and the other is arranged outside the accommodating cavity 11. The receiving part 32 is used to receive the light emitted by the transmitting part 31. Along the axial direction of the winding wheel 10, the winding area is located in the detection field of view of the detection component 30.
[0047] When the transmitting part 31 emits light, the winding area can guide light and allow light to pass through, while the lifting rope 20 will block the light. Therefore, if the receiving part 32 does not receive the light, it is determined that the corresponding position is blocked by the lifting rope 20. If the receiving part 32 receives the light, it is determined that the corresponding position does not have the lifting rope 20. Therefore, based on the signal of the receiving part 32, it can be determined whether the receiving part 32 receives the light, and then the number of turns of the lifting rope 20 on the winding reel 10 can be determined. By directly detecting the lifting rope 20 to obtain the number of turns of the lifting rope 20, the detection is simpler and more direct, without the need for light reflection, and the detection result is more accurate.
[0048] The light emitted by the transmitting unit 31 can be infrared light or laser, so the detection component 30 can be an infrared sensor or a laser sensor. The light emitting principle of the transmitting unit 31 and the receiving principle of the receiving unit 32 are conventional technologies and will not be repeated here.
[0049] In this embodiment, the emitting portion 31 emits light in the radial direction of the reel 10. In other embodiments, the emitting portion 31 may emit light in a direction that forms an angle with the radial direction of the reel 10, as long as the light passes through the winding area and is received by the receiving portion 32.
[0050] It will be appreciated that the clothes drying rack also includes a controller. Controlled components, such as the drive mechanism and detection assembly 30, are electrically connected to the controller. The controller is capable of receiving signals from a receiver 32. The controller receives raise and lower commands to start and stop the drive mechanism, thereby raising and lowering the clothes drying rod. The controller's control principles are conventional in the field of electronic control and will not be elaborated upon here.
[0051] There can be one or more transmitting units 31. There can be one or more receiving units 32. In this embodiment, the transmitting unit 31 is disposed inside the accommodating chamber 11, and the receiving unit 32 is disposed outside the accommodating chamber 11. In other embodiments, the transmitting unit 31 is disposed outside the accommodating chamber 11, and the receiving unit 32 is disposed inside the accommodating chamber 11. In other embodiments, part of the transmitting unit 31 is disposed outside the accommodating chamber 11, part of the transmitting unit 31 is disposed inside the accommodating chamber 11, part of the receiving unit 32 is disposed outside the accommodating chamber 11, and part of the receiving unit 32 is disposed inside the accommodating chamber 11.
[0052] The emitting portion 31 includes a plurality of light-emitting bodies, which are linearly spaced along the length of the emitting portion 31. In some embodiments, the plurality of light-emitting bodies are not only spaced along the length of the emitting portion 31, but are also spaced around the circumference of the emitting portion 31, so that the emitting portion 31 emits light along its own length and around its own circumference. The light emitted by the plurality of light-emitting bodies is closely arranged to form a light curtain. Correspondingly, the receiving portion 32 includes a plurality of receivers, which are linearly spaced along the length of the receiving portion 32. The receivers are used to receive the light emitted by the light-emitting bodies. In some embodiments, the plurality of receivers are not only spaced along the length of the receiving portion 32, but are also spaced around the circumference of the receiving portion 32.
[0053] Along the axial direction of the reel 10, the length of the light emitted by the transmitting unit 31 is L. Based on the length L1 of the light received by the receiving unit 32 and the diameter d of the lifting rope 20, the number of turns of the lifting rope 20 on the reel 10 can be determined as (L-L1) / d.
[0054] In some embodiments, the transmitter 31 and the receiver 32 are fixed in position, the transmitter 31 is independent of and spaced apart from the reel 10, and the receiver 32 is independent of and spaced apart from the reel 10, and the transmitter 31 transmits light toward the receiver 32. In other words, neither the transmitter 31 nor the receiver 32 rotates with the reel 10.
[0055] In some embodiments, the transmitter 31 is disposed within the accommodating cavity 11, and the receiver 32 is disposed outside the accommodating cavity 11. The receiver 32 is fixed in position, independent of and spaced from the reel 10, and fixedly connected to the reel 10. The transmitter 31 rotates with the reel 10, and emits light along its own length and around its own circumference, so that when the transmitter 31 rotates to any angle, light is emitted toward the receiver 32 along the radial direction of the reel 10. The multiple light emitters of the transmitter 31 are not only spaced apart along the length of the transmitter 31, but also spaced apart around the circumference of the transmitter 31.
[0056] See also Figures 1 to 3 One transmitting unit 31 and one receiving unit 32 are provided. The transmitting unit 31 and the receiving unit 32 are fixed in position. The transmitting unit 31 and the reel 10 are independent of each other and spaced apart. The receiving unit 32 and the reel 10 are independent of each other and spaced apart. The transmitting unit 31 transmits light toward the receiving unit 32. In other words, neither the transmitting unit 31 nor the receiving unit 32 rotates with the reel 10. The transmitting unit 31 includes a plurality of light emitters, which are linearly spaced along the length of the transmitting unit 31. The receiving unit 32 includes a plurality of receivers, which are linearly spaced along the length of the receiving unit 32. The light emitters transmit light toward the receiving unit 32.
[0057] See also Figure 4 , one transmitter 31 is provided and multiple receivers 32 are provided, with the multiple receivers 32 spaced apart around the circumference of the reel 10. Regarding the transmitter 31, the multiple light emitters are spaced apart not only along the length of the transmitter 31 but also around the circumference of the transmitter 31. In some embodiments, the receiver 32 is fixed in position, independent of the reel 10 and spaced apart from each other, and the transmitter 31 rotates with the reel 10.
[0058] In some embodiments, multiple transmitters 31 and multiple receivers 32 are provided. The multiple transmitters 31 are spaced apart around the axis of the reel 10, and the multiple receivers 32 are spaced apart around the circumference of the reel 10. The number of transmitters 31 and the number of receivers 32 can be equal or unequal. All transmitters 31 are disposed within the accommodating chamber 11, and all receivers 32 are disposed outside the accommodating chamber 11; alternatively, some transmitters 31 are disposed within the accommodating chamber 11, and some receivers 32 are disposed outside the accommodating chamber 11.
[0059] See also Figure 5, multiple transmitting units 31 are provided and are located within the accommodating chamber 11, and multiple receiving units 32 are provided and are located outside the accommodating chamber 11. In some embodiments, both the transmitting unit 31 and the receiving unit 32 are fixed in position and neither rotates with the reel 10. In some embodiments, the receiving unit 32 is fixed in position, is independent of the reel 10, and is spaced apart from the receiving unit 32, and the transmitting unit 31 rotates with the reel 10.
[0060] In some embodiments, multiple detection assemblies 30 are provided, and the multiple detection assemblies 30 are arranged at intervals around the circumference of the reel 10. This is equivalent to providing multiple transmitters 31 and multiple receivers 32, and the transmitters 31 and the receivers 32 are provided in a one-to-one correspondence, and the number of transmitters 31 is equal to the number of receivers 32.
[0061] When multiple sets of detection assemblies 30 are provided, the transmitting portion 31 may be provided inside the accommodating chamber 11 and the receiving portion 32 may be provided outside the accommodating chamber 11, or the receiving portion 32 may be provided inside the accommodating chamber 11 and the transmitting portion 31 may be provided outside the accommodating chamber 11. For example, when two sets of detection assemblies 30 are provided, in one set of detection assemblies 30, the transmitting portion 31 may be provided inside the accommodating chamber 11 and the receiving portion 32 may be provided outside the accommodating chamber 11; in the other set of detection assemblies 30, the receiving portion 32 may be provided inside the accommodating chamber 11 and the transmitting portion 31 may be provided outside the accommodating chamber 11.
[0062] In the case where multiple sets of detection components 30 are provided, the transmitting portion 31 and the receiving portion 32 may be both fixed in position, and neither of them rotates with the winding reel 10 .
[0063] In some embodiments, both the transmitting portion 31 and the receiving portion 32 extend parallel to the axis of the reel 10. Figure 6 The transmitter 31 and / or receiver 32 are arranged at an angle to the axis of the reel 10, that is, the transmitter 31 and / or receiver 32 are arranged at an angle relative to the axis of the reel 10. As long as the winding area is within the detection field of view of the detection assembly 30, each turn of the lift cord 20 on the reel 10 can be detected.
[0064] In some embodiments, the receiving portion 32 is disposed within the accommodating cavity 11, and the emitting portion 31 is disposed outside the accommodating cavity 11. The emitting portion 31 includes a plurality of light emitters, which are linearly spaced along the length of the emitting portion 31. The receiving portion 32 includes a plurality of receivers, which are linearly spaced along the length of the receiving portion 32. The receivers are configured to receive light emitted by the emitting portion 31.
[0065] Alternatively, one transmitter 31 and one receiver 32 may be provided. In some embodiments, the transmitter 31 and the receiver 32 are fixed in position, the transmitter 31 and the reel 10 are independent of each other and spaced apart, and the receiver 32 and the reel 10 are independent of each other and spaced apart. In other words, neither the transmitter 31 nor the receiver 32 rotates with the reel 10. In some embodiments, the transmitter 31 is fixed in position, the transmitter 31 and the reel 10 are independent of each other and spaced apart, and the receiver 32 rotates with the reel 10. The multiple receivers of the receiver 32 are not only spaced apart along the length of the transmitter 31, but are also spaced apart around the circumference of the receiver 32.
[0066] Alternatively, multiple transmitters 31 and multiple receivers 32 may be provided, with the multiple receivers 32 spaced apart around the axis of the reel 10 and spaced apart around the circumference of the reel 10. The number of transmitters 31 and the number of receivers 32 may be equal or unequal. In some embodiments, both the transmitter 31 and the receiver 32 are fixed in position and do not rotate with the reel 10. In some embodiments, the transmitter 31 is fixed in position, independent of the reel 10 and spaced apart from each other, while the receiver 32 rotates with the reel 10.
[0067] In this embodiment, the reel 10 is a split structure, comprising two detachably connected housings that interlock to form a housing 11 for mounting the transmitter 31 and receiver 32. The cross-sectional shape of the housing 11 can be circular, elliptical, or polygonal. A threading hole communicating with the housing 11 is provided at at least one end of the reel 10 to facilitate routing of the line.
[0068] The detection assembly 30 also includes a first bracket and a second bracket. The transmitter 31 is mounted on the first bracket, and the receiver 32 is mounted on the second bracket. The first and second brackets provide support. The transmitter 31 and receiver 32 are detachable for easy installation and replacement.
[0069] The clothes drying machine also includes a guide wheel. One end of the lifting cord 20 is connected to the reel 10, and the other end of the lifting cord 20 wraps around the guide wheel and extends downward. The number of guide wheels can be adjusted based on actual needs. The purpose of the guide wheels is to guide the lifting cord 20 so that it extends downward. The downwardly extending end of the lifting cord 20 is typically connected to a clothes drying rod. A detection assembly 30 determines the number of coils of the lifting cord 20 on the reel 10. Based on data stored in the controller's database, the position of the clothes drying rod corresponding to the coil number can be retrieved.
[0070] The data stored in the database is obtained based on multiple tests. A clothesline can move between a highest and lowest positions. When the clothesline is at its highest position, the number of turns of the lifting cord 20 on the reel 10 is N. When the clothesline is at its lowest position, the number of turns of the lifting cord 20 on the reel 10 is M. Since the total length of the lifting cord 20 is a fixed value, after determining the relative positions of the detection assembly 30, the reel 10, and the lifting cord 20, multiple tests can be performed to record the correspondence between the number of turns of the lifting cord 20 on the reel 10 and the position of the clothesline. For example, if the number of turns of the lifting cord 20 on the reel 10 is N, the clothesline is in the first position; if the number of turns of the lifting cord 20 on the reel 10 is N-1, the clothesline is in the second position; and so on. The first position can be a fixed height value or a range of heights.
[0071] Example 2
[0072] See also Figure 7 and Figure 8 An embodiment of the present invention provides a control method for a clothes drying machine. Using the aforementioned clothes drying machine, the control method includes: a transmitter 31 transmits light; a controller acquires a signal from a receiver 32. If the receiver 32 does not receive the light, the controller determines that the corresponding position is blocked by the lifting cord 20; if the receiver 32 receives the light, the controller determines that the corresponding position does not have the lifting cord 20; and the controller determines the number of turns of the lifting cord 20 on the reel 10 based on the signal from the receiver 32. The specific principle is: along the axial direction of the reel 10, the length of the light emitted by the transmitter 31 is L. Based on the length L1 of the light received by the receiver 32 and the diameter d of the lifting cord 20, the number of turns of the lifting cord 20 on the reel 10 can be determined as (L-L1) / d.
[0073] In order to detect the lifting ropes 20 in all the winding grooves 12, the transmitting part 31 and the receiving part 32 are arranged to extend parallel to the axis of the winding wheel 10, and all the winding grooves 12 are located in the detection field of the transmitting part 31 and the receiving part 32.
[0074] For a clothes drying machine, the total length of the lifting cord 20 is fixed. Therefore, the position of the clothes drying rod can be determined based on the number of coils of the lifting cord 20 on the reel 10. There is a one-to-one correspondence between the number of coils of the lifting cord 20 on the reel 10 and the position of the clothes drying rod. Therefore, after obtaining the current number of coils of the lifting cord 20 on the reel 10, the position of the clothes drying rod corresponding to that number of coils can be retrieved based on data stored in a database. The data stored in the database is obtained and stored through multiple detections.
[0075] It can be understood that if the clothesline is raised, the number of turns of the lifting rope 20 on the reel 10 increases, and if the clothesline is lowered, the number of turns of the lifting rope 20 on the reel 10 decreases; therefore, if the number of turns of the lifting rope 20 on the reel 10 increases, it is determined that the clothesline is rising; if the number of turns of the lifting rope 20 on the reel 10 decreases, it is determined that the clothesline is lowering.
[0076] In this embodiment, there is no need to set proximity switches at the highest position and the lowest position. The transmitter 31 and the receiver 32 cooperate to determine the number of turns of the lifting rope 20 on the winding wheel 10, and determine whether the clothesline has reached the highest position or the lowest position based on the number of turns.
[0077] If the number of turns of the lifting cord 20 on the reel 10 is greater than or equal to a first set value, or if the number of turns of the lifting cord 20 on the reel 10 is less than or equal to a second set value, a first prompt message is issued and the reel 10 is controlled to stop rotating. The first prompt message can be a text display or voice announcement of "reached the highest position" or "reached the lowest position".
[0078] When the clothesline pole is nearing its highest position, or when it is nearing its lowest position, to avoid a sudden stop at the end point, which could cause significant vibration, the speed of the pole can be reduced before reaching the end point. Therefore, if the number of turns of the lifting cord 20 on the reel 10 is less than the first set value and greater than or equal to the third set value, or if the number of turns of the lifting cord 20 on the reel 10 is greater than the second set value and less than or equal to the fourth set value, a second prompt message is issued and the speed of the reel 10 is controlled to be reduced to the minimum speed. The second prompt message can be a text display or voice announcement indicating "approaching the end point."
[0079] It can be understood that in the process of controlling the speed of the winding reel 10 to drop to the minimum speed, if the current speed of the winding reel 10 is greater than the minimum speed, the speed of the winding reel 10 is controlled to decrease, which is actually to control the speed of the motor to decrease; if the current speed of the winding reel 10 is already the minimum speed, the speed of the winding reel 10 is controlled to remain unchanged.
[0080] When the clothes drying rod is stationary, if the clothes drying machine receives a lifting command, it first obtains the number of turns of the lifting cord 20 on the winding wheel 10 and then controls the winding wheel 10 to rotate. When switching from the stationary state to the moving state, before controlling the winding wheel 10 to rotate, by obtaining the current number of turns of the lifting cord 20 on the winding wheel 10, it can verify whether the transmitting unit 31 and the receiving unit 32 are in normal operation and determine the current position of the clothes drying rod.
[0081] Before the control reel 10 rotates, if the clothes drying rod is at the highest position and the clothes drying machine receives an ascending command, or if the clothes drying rod is at the lowest position and the clothes drying machine receives a descending command, a first alarm message is issued. The first alarm message can be a text display or voice broadcast of "Command error, unable to ascend or descend".
[0082] Specifically, see Figure 8 When the clothesline is stationary, if the clothesline receives a lifting command, it first obtains the number of turns of the lifting cord 20 on the reel 10, and then determines the position of the clothesline based on the number of turns of the lifting cord 20 on the reel 10. It then determines whether the clothesline is at its highest position. If so, it determines whether the command received by the clothesline is a lifting command. If not, it controls the reel 10 to rotate. If the clothesline is at its highest position and the command received is a lifting command, it issues a first alarm. If the clothesline is not at its highest position, it determines whether the clothesline is at its lowest position. If not, it controls the reel 10 to rotate. If the clothesline is at its lowest position, it determines whether the command received by the clothesline is a lowering command. If not, it controls the reel 10 to rotate. If so, it issues a first alarm.
[0083] When the clothes drying rod is in the lifting state, if the clothes drying machine receives a stop command, the winding wheel 10 is first controlled to stop rotating, and then the number of turns of the lifting rope 20 on the winding wheel 10 is obtained.
[0084] In some embodiments, each time the clothes drying machine receives a lifting command, the clothes drying rod is raised or lowered by a set distance. In some embodiments, the lifting command received by the clothes drying machine is a set distance value. During the process of controlling the rotation of the winding reel 10, the number of turns of the lifting cord 20 on the winding reel 10 is obtained in real time, and the position of the clothes drying rod is determined based on the number of turns, thereby timely controlling the winding reel 10 to stop rotating.
[0085] In some embodiments, two reels 10 are provided, each with a detection assembly 30. The detection assembly 30 determines the degree of tilt of the clothesline based on the difference in the number of turns of the lifting cord 20 between the two reels 10. If the difference in the number of turns of the lifting cord 20 between the two reels 10 exceeds a first predetermined threshold, a tilt alarm is issued.
[0086] In some embodiments, two sets of detection assemblies 30 are provided for each reel 10, evenly spaced around the circumference of the reel 10. The two sets of detection assemblies 30 determine the number of turns of the lift cord 20 based on the signals received by the two sets of receivers 32, allowing the number of turns of the lift cord 20 on the reel 10 to be accurately determined to within a half turn. For example, two sets of transmitters 31 are provided within the accommodating chamber 11, and two sets of receivers 32 are provided on the periphery of the reel 10. The transmitters 31 and receivers 32 correspond to each other in a one-to-one relationship and do not rotate with the reel 10.
[0087] The number of turns of the lifting rope 20 is determined based on the signals received by the two groups of receiving parts 32, including: when the first group of detection components 30 detects that the number of turns of the lifting rope 20 on the winding reel 10 is N1, and the second group of detection components 30 detects that the number of turns of the lifting rope 20 on the winding reel 10 is N1+1, as the lifting rope 20 is lowered, when the first group of detection components 30 detects that the number of turns of the lifting rope 20 on the winding reel 10 is N1, and the second group of detection components 30 detects that the number of turns of the lifting rope 20 on the winding reel 10 is N1, it means that the number of turns of the lifting rope 20 on the winding reel 10 is reduced by 1 / 2 turn.
[0088] After determining the relative positions of the detection assembly 30, the reel 10, and the lift cord 20, multiple detections can be performed to record the correspondence between the number of lift cord 20 coils detected by each set of detection assemblies 30 on the reel 10 and the position of the clothesline. This data can be stored in a database. During use, the corresponding clothesline position can be retrieved based on the number of lift cord 20 coils detected by each set of detection assemblies 30. For example, if the first set of detection assemblies 30 detects N1 coils of the lift cord 20 on the reel 10, and the second set of detection assemblies 30 detects N2 coils of the lift cord 20 on the reel 10, the clothesline positions corresponding to N1 and N2 are retrieved from the database.
[0089] When multiple sets of detection assemblies 30 are provided, the sets of detection assemblies 30 can be evenly or unevenly distributed. After determining the relative positions of the detection assemblies 30, the reel 10, and the lifting cord 20, multiple detections can be performed to record the correspondence between the number of lift cord 20 coils on the reel 10 detected by each set of detection assemblies 30 and the position of the clothesline. This data can be stored in a database, and during use, the corresponding clothesline position can be retrieved based on the number of lift cord 20 coils on the reel 10 detected by each set of detection assemblies 30.
[0090] In some embodiments, three groups of detection assemblies 30 are provided, and the three groups of detection assemblies 30 are evenly distributed. By comparing the number of turns of the lifting cord 20 on the reel 10 detected by the three groups of detection assemblies 30, the number of turns of the lifting cord 20 on the reel 10 can be accurately determined to within 1 / 3 of a turn. Specifically, multiple detections can be performed, and the corresponding data can be stored and directly retrieved during use.
[0091] When the first detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, the second detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, and the third detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1+1, as the lifting cord 20 is lowered, when the first detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, the second detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, and the second detection component 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, it means that the number of turns of the lifting cord 20 on the reel 10 is reduced by 1 / 3.
[0092] After determining the relative positions of the detection assembly 30, the reel 10, and the lifting cord 20, multiple detections can be performed to record the correspondence between the number of turns of the lifting cord 20 on the reel 10 detected by each set of detection assemblies 30 and the position of the clothesline. The relevant data can be stored in a database. During use, the corresponding clothesline position can be retrieved based on the number of turns of the lifting cord 20 on the reel 10 detected by each set of detection assemblies 30. For example, if the first set of detection assemblies 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N1, the second set of detection assemblies 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N2, and the third set of detection assemblies 30 detects that the number of turns of the lifting cord 20 on the reel 10 is N3, the clothesline positions corresponding to N1, N2, and N3 are retrieved from the database.
[0093] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A clothes drying machine, characterized in that: include: clothes drying pole; A lifting mechanism comprises a winding wheel (10) and a lifting rope (20), wherein the winding wheel (10) has a winding area capable of guiding light, the lifting rope (20) is wound around the winding area and connected to the clothes drying rod, and a receiving cavity (11) is formed inside the winding wheel (10); A detection assembly (30) comprises a transmitting portion (31) and a receiving portion (32), wherein one of the transmitting portion (31) and the receiving portion (32) is arranged in the accommodating cavity (11), and the other is arranged outside the accommodating cavity (11), and the receiving portion (32) is used to receive light emitted by the transmitting portion (31). Along the axial direction of the winding wheel (10), the winding area is located within the detection field of view of the detection assembly (30).
2. The clothes drying machine according to claim 1, characterized in that: The transmitting portion (31) is arranged in the accommodating cavity (11), and the receiving portion (32) is arranged outside the accommodating cavity (11).
3. The clothes drying machine according to claim 2, characterized in that: A plurality of receiving portions (32) are provided, and the plurality of receiving portions (32) are distributed at intervals around the circumference of the winding wheel (10).
4. The clothes drying machine according to claim 2, characterized in that: The receiving portion (32) is fixed in position, the emitting portion (31) is fixedly connected to the winding wheel (10), and the emitting portion (31) emits light along its own length direction and around its own circumference.
5. The clothes drying machine according to claim 1, characterized in that: The transmitting part (31) and the receiving part (32) are fixed in position; the transmitting part (31) and the winding wheel (10) are independent of each other and are spaced apart; the receiving part (32) and the winding wheel (10) are independent of each other and are spaced apart; and the transmitting part (31) emits light toward the receiving part (32).
6. The clothes drying machine according to claim 1, characterized in that: The detection components (30) are provided in multiple groups, and the multiple groups of the detection components (30) are arranged at intervals around the circumference of the winding wheel (10).
7. The clothes drying machine according to claim 6, characterized in that: The detection components (30) are provided in two groups. In one group of the detection components (30), the transmitting part (31) is provided in the accommodating cavity (11), and the receiving part (32) is provided outside the accommodating cavity (11); in the other group of the detection components (30), the receiving part (32) is provided in the accommodating cavity (11), and the transmitting part (31) is provided outside the accommodating cavity (11).
8. The clothes drying machine according to any one of claims 1 to 7, characterized in that: The winding wheel (10) is a light guide.
9. A method for controlling a clothes drying machine, characterized in that: The clothes drying machine according to any one of claims 1 to 8 comprises: The emitting portion (31) emits light; The controller obtains a signal from the receiving unit (32). If the receiving unit (32) does not receive light, it is determined that the corresponding position is blocked by the lifting rope (20). If the receiving unit (32) receives light, it is determined that the corresponding position does not have the lifting rope (20). The controller determines the number of turns of the lifting rope (20) on the winding wheel (10) according to the signal of the receiving unit (32).
10. The control method of the clothes drying machine according to claim 9, characterized in that: Two groups of detection components (30) are provided corresponding to each winding wheel (10). The two groups of detection components (30) are evenly spaced around the circumference of the winding wheel (10) and judge the number of turns of the lifting rope (20) based on the signals received by the two groups of receiving parts (32).