Clothes airing rod bearing detection circuit and device and clothes airing machine

Abstract

The utility model provides a clothes airing rod bearing detection circuit and device and a clothes airing machine. The clothes airing rod bearing detection circuit comprises a driving branch and a monitoring branch. The driving branch is connected with the clothes airing rod, and the driving branch drives the clothes airing rod to ascend and descend; and the monitoring branch is used for monitoring the running speed of the driving branch so as to determine the bearing result of the clothes airing rod according to the monitored running speed information. According to the utility model, the bearing result of the clothesline pole can be accurately detected, and a user can conveniently supervise the service life and the use safety of the clothesline pole according to the bearing result.

Description

Technical Field

[0001] The utility model relates to the technical field of load-bearing detection, in particular to a clothes-drying-rod load-bearing detection circuit, a device and a clothes-drying machine. Background Art

[0002] Many lifting devices, including clothes drying racks, are commonly used to lift objects. The actual load-bearing capacity of a lifting device affects its service life and safety. However, existing lifting devices lack a means to accurately detect real-time load-bearing capacity, hindering the monitoring of their service life and safety. Utility Model Content

[0003] The purpose of the present utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a clothesline load-bearing detection circuit, device and clothes drying machine, which can accurately detect the load-bearing results of the clothesline, thereby facilitating users to monitor the service life and safety of the clothesline according to the load-bearing results.

[0004] The first embodiment of the present invention provides a clothes-drying rod load-bearing detection circuit, comprising: a driving branch and a monitoring branch; the driving branch is connected to the clothes-drying rod, and the driving branch drives the clothes-drying rod to move up and down;

[0005] The monitoring branch is used to monitor the running speed of the driving branch, so as to determine the load-bearing result of the clothes drying rod according to the running speed information obtained by monitoring.

[0006] The second embodiment of the present invention provides a clothes-drying rod load-bearing detection device, comprising: a lifting drive module, a control chip and a monitoring module;

[0007] The lifting drive module is connected to the clothes drying rod, and the control chip is connected to the lifting drive module. The control chip drives the clothes drying rod to move up and down through the lifting drive module.

[0008] The monitoring module is connected to the control chip, and is used to monitor the operating speed of the lifting drive module and send the monitored operating speed information to the control chip, so that the control chip determines the load-bearing result of the clothesline according to the operating speed information.

[0009] A third embodiment of the present application provides a clothes drying machine, comprising: a control chip, a lifting drive module, a monitoring module, and a clothes drying rod;

[0010] The control chip is connected to the lifting drive module, and the lifting drive module is connected to the clothes drying rod. The control chip drives the clothes drying rod to move up and down through the lifting drive module.

[0011] The monitoring module is connected to the control chip, and is used to monitor the operating speed of the lifting drive module and send the monitored operating speed information to the control chip, so that the control chip determines the load-bearing result of the clothesline according to the operating speed information.

[0012] Compared with the existing technology, the utility model can determine the load-bearing result of the clothes drying rod by monitoring the operating speed of the drive branch or the lifting drive module, which is beneficial for users to monitor the service life and safety of the clothes drying machine based on the load-bearing result.

[0013] In order to more clearly understand the present invention, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the module connection of a clothes-drying rod load-bearing detection circuit according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of module connections of a clothes-drying rod load-bearing detection device according to one embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of a lifting drive module of a clothes-drying rod load-bearing detection device according to one embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the layout of the Hall sensors of the clothes drying rod load-bearing detection device according to one embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the first magnetic part and the second magnetic part of a clothes drying rod load-bearing detection device according to one embodiment of the present invention.

[0019] Figure 6 The figure is a schematic structural diagram of a clothes drying machine according to an embodiment of the present invention.

[0020] 1. Clothes-drying-pole load-bearing detection circuit; 11. Drive branch; 13. Monitoring branch; 2. Clothes-drying-pole load-bearing detection device; 21. Lifting drive module; 211. Motor; 213. Magnetic component; 2131. Ring magnet; 23. Control chip; 25. Monitoring module; 27. Circuit board; 3. Clothes-drying machine; 31. Clothes-drying-pole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 , which is a schematic diagram of the module connection of a clothes-drying rod load-bearing detection circuit 1 according to an embodiment of the present invention. The clothes-drying rod load-bearing detection circuit 1 comprises: a driving branch 11 and a monitoring branch 13; the driving branch 11 is connected to the clothes-drying rod, and the driving branch 11 drives the clothes-drying rod to move up and down;

[0023] The monitoring branch 13 is used to monitor the running speed of the driving branch 11, so as to determine the load-bearing result of the clothes drying rod according to the running speed information obtained by monitoring.

[0024] The driving branch 11 includes a motor and a magnetic component; the motor includes a motor rotor; the magnetic component is arranged on the motor rotor; the operating speed information includes a frequency of change of the magnetic flux, and the frequency of change of the magnetic flux is positively correlated with the rotation speed of the motor rotor;

[0025] The monitoring branch 13 is used to monitor the frequency of change of the magnetic flux when the motor rotor drives the magnetic component to rotate, so as to determine the load-bearing result of the clothes drying rod.

[0026] In this embodiment, compared with the prior art, the utility model can determine the load-bearing result of the clothes drying rod by monitoring the operating speed of the driving branch 11, which is beneficial for users to monitor the service life and safety of the clothes drying machine based on the load-bearing result.

[0027] See also Figure 2 The second embodiment of the present utility model discloses a clothes-drying rod load-bearing detection device 2, comprising:

[0028] Lifting drive module 21, control chip 23 and monitoring module 25;

[0029] The lifting drive module 21 is connected to the clothes drying rod, and the control chip 23 is connected to the lifting drive module 21. The control chip 23 drives the clothes drying rod to move up and down through the lifting drive module 21;

[0030] The monitoring module 25 is connected to the control chip 23. The monitoring module 25 is used to monitor the operating speed of the lifting drive module 21 and send the monitored operating speed information to the control chip 23, so that the control chip 23 determines the load-bearing result of the clothes drying rod according to the operating speed information.

[0031] The clothes drying rod includes a load-bearing rod and a lifting component, wherein the lifting component can be a plurality of lifting ropes, such as steel wire ropes. The load-bearing rod is connected to the lifting drive module 21 via the plurality of lifting ropes. When the lifting drive module 21 is in operation, it can pull the lifting ropes to provide an upward pulling force on the load-bearing rod, thereby raising the load-bearing rod, and can also release the lifting ropes to lower the load-bearing rod due to the action of the vehicle's gravity.

[0032] The control chip 23 may store no-load operation data of the lifting drive module 21 during operation. The no-load operation data may be obtained by, but not limited to, the following method: when the clothesline is unloaded, the monitoring module 25 detects the speed information output by the lifting drive module 21 during operation and determines it as no-load operation data. The control chip 23 may also store standard operation data of the lifting drive module 21 during operation. The standard operation data may be obtained by, but not limited to, the following method: when the clothesline is loaded with an object that reaches a preset weight standard, the monitoring module 25 detects the speed information output by the lifting drive module 21 during operation and determines it as standard operation data. The control chip 23 may also store upper-limit load operation data of the lifting drive module 21 during operation. The upper-limit load operation data may be obtained by, but not limited to, the following method: when the clothesline is loaded with an object that reaches a preset weight limit, the monitoring module 25 detects the speed information output by the lifting drive module 21 during operation and determines it as upper-limit load operation data.

[0033] The control chip 23 can compare and calculate the monitoring data output by the monitoring module 25 based on the no-load operation data, standard operation data or load-limit operation data to determine the change in the operating speed of the lifting drive module 21, thereby obtaining the load-bearing result of the clothesline.

[0034] Compared with the prior art, the lifting drive module 21 of the utility model is connected to the clothesline, and the control chip 23 is connected to the lifting drive module 21; the control chip 23 drives the lifting drive module 21 to operate to drive the clothesline to rise and fall; and since the monitoring module 25 is connected to the control chip 23, the monitoring module 25 can output the running speed information of the lifting drive module 21 to the control chip 23, so that the control chip 23 determines the load-bearing result of the clothesline according to the running speed information. The running speed of the lifting drive module 21 can be monitored by the monitoring module 25 to accurately determine the load-bearing result of the clothesline, which is beneficial for users to monitor the service life and safety of use of the clothesline according to the load-bearing result.

[0035] See also Figure 3In a feasible embodiment, the lifting drive module 21 includes a motor and a magnetic component 213; the motor 111 includes a motor rotor; the magnetic component 213 is disposed on the motor rotor; the operating speed information includes a frequency of change of magnetic flux, and the frequency of change of magnetic flux is positively correlated with the rotation speed of the motor rotor;

[0036] When the motor rotor rotates and drives the clothes drying rod 31 to rise and fall, the magnetic component 213 rotates as the motor rotor rotates. The monitoring module 25 sends the changing frequency of the magnetic flux when the magnetic component 213 rotates to the control chip 23.

[0037] Among them, the frequency of change of magnetic flux can be expressed as a monitoring waveform including a high-level signal and a low-level signal; for example, when the motor rotor rotates and drives the clothesline to rise and fall, the magnetic component 213 rotates as the motor rotor rotates, and the monitoring module 25 senses the change of magnetic flux when the magnetic component 213 rotates. When the magnetic flux monitored by the monitoring module 25 is greater than the preset magnetic flux threshold, the monitoring module 25 outputs a high-level signal to the control chip 23. When the magnetic flux monitored by the monitoring module 25 is less than or equal to the magnetic flux threshold, the monitoring module 25 outputs a low-level signal to the control chip 23. The pulse width of the high-level signal and the low-level signal of the monitoring waveform is negatively correlated with the frequency of change of magnetic flux, that is, the higher the frequency of change of magnetic flux, the smaller the pulse width of the high-level signal and the low-level signal of the monitoring waveform.

[0038] The weight of the real-time load on the clothesline main body acts on the motor rotor via the lifting component, affecting the motor rotor's rotational speed. Specifically, during the rising process of the clothesline main body, the greater the weight of the real-time load on the clothesline main body, the slower the motor rotor's rotational speed; during the descending process of the clothesline main body, the greater the weight of the real-time load on the clothesline main body, the faster the motor rotor's rotational speed. During this process, because the motor rotor synchronously drives the magnetic component 213 to rotate, the magnetic field generated by the magnetic component 213 changes as the magnetic component 213 rotates. The speed of the motor rotor's rotation can be directly reflected by the change in magnetic flux when the magnetic component 213 rotates. The change in magnetic flux can be detected by the Hall sensor. The Hall sensor can also output corresponding high-level and low-level signals to the control chip 23 based on the change in magnetic flux, so that the control chip 23 determines the load-bearing result of the clothesline main body based on the pulse width of the high-level and low-level signals.

[0039] In this embodiment, the Hall sensor senses the change in magnetic flux when the magnetic component 213 disposed on the motor rotor rotates, and thus a high-level signal and a low-level signal representing the rotation speed of the electron can be accurately obtained.

[0040] In a feasible embodiment, the magnetic component 213 includes an annular magnet 2131 , and the annular magnet 2131 is sleeved on the motor rotor, and the motor rotor drives the annular magnet 2131 to rotate;

[0041] The annular magnet 2131 includes a plurality of first magnetic portions and second magnetic portions arranged at intervals; the first magnetic portions and the second magnetic portions are evenly arranged on the annular magnet 2131;

[0042] The monitoring module 25 is disposed in the magnetic field formed by the first magnetic portion and the second magnetic portion.

[0043] Among them, the number of first magnetic parts and second magnetic parts on the annular magnet 2131 is the same. The more first magnetic parts and second magnetic parts on the annular magnet 2131, the more magnetic fields are formed by the first magnetic parts and second magnetic parts on the annular magnet 2131. When the annular magnet 2131 rotates with the motor rotor, the density of high-level signals and low-level signals output by the Hall sensor due to the magnetic field changes can be increased, so that the control chip 23 can accurately and quickly determine the load-bearing result of the clothesline.

[0044] In this embodiment, the control chip 23 can accurately and quickly determine the load-bearing result of the clothes drying rod through the plurality of mutually spaced first magnetic parts and second magnetic parts of the annular magnet 2131 sleeved on the motor rotor.

[0045] See also Figure 4 In a feasible embodiment, the monitoring module 25 includes a first Hall sensor and a second Hall sensor, and the first Hall sensor and the second Hall sensor are arranged at intervals around the annular magnet 2131; when the annular magnet 2131 rotates to the interval between the first magnetic part and the second magnetic part, it corresponds to the first Hall sensor, and the second Hall sensor corresponds to the first magnetic part or the second magnetic part.

[0046] Among them, since the two Hall sensors are arranged at intervals, when one of the Hall sensors corresponds to the interval between the first magnetic part and the second magnetic part, the magnetic force of the induced magnetic field is parallel to the Hall sensor, and the magnetic flux is small at this time; and when the other Hall sensor corresponds to the first magnetic part or the second magnetic part, the magnetic force of the induced magnetic field is perpendicular to the Hall sensor, and the magnetic flux is large at this time, so staggered sensing can be achieved, and the level signals output by the two Hall sensors' staggered sensing ring magnets 2131 are different, and two sets of different running speed information can be obtained at the same time, so that the control chip 23 can quickly determine the load-bearing result based on the level signals of the two sets of different running speed information, and can also reduce the interference of the external magnetic field on the load-bearing result, thereby improving the accuracy of the load-bearing result.

[0047] In this embodiment, the two Hall sensors arranged at intervals can enable the control chip 23 to accurately and quickly determine the load-bearing result of the clothes drying rod.

[0048] In a feasible embodiment, the clothes-drying-rod load-bearing detection device 2 further includes a circuit board 27 , which is arranged around the annular magnet 2131 ; the first Hall sensor and the second Hall sensor are respectively fixed to the circuit board 27 .

[0049] In this embodiment, the two Hall sensors may be fixed by the circuit board 27 to improve the stability of the arrangement positions of the two Hall sensors.

[0050] See also Figure 5 In a feasible embodiment, the monitoring module 25 includes a Hall sensor; the magnetic component 213 includes a first magnetic portion and a second magnetic portion, the first magnetic portion and the second magnetic portion are symmetrically arranged around the motor rotor to form a magnetic field perpendicular to the motor rotor;

[0051] The Hall sensor is disposed in a magnetic field formed by the first magnetic portion and the second magnetic portion and perpendicular to the motor rotor.

[0052] When the first and second magnetic parts rotate with the motor rotor, they rotate around the Hall sensor. The Hall sensor senses changes in magnetic flux during rotation. For example, when the magnetic fields of the first and second magnetic parts are perpendicular to the Hall sensor, the magnetic flux is high; when the magnetic fields of the first and second magnetic parts are parallel to the Hall sensor, the magnetic flux is low. Based on the changes in magnetic flux, the Hall sensor can output operating speed information, including high and low level signals.

[0053] In this embodiment, the first magnetic part and the second magnetic part are symmetrically arranged around the motor rotor. When the first magnetic part and the second magnetic part rotate with the motor rotor, the Hall sensor arranged in the magnetic field can sense the change in magnetic flux caused by the rotation of the first magnetic part and the second magnetic part to output running speed information including a high-level signal and a low-level signal.

[0054] See also Figure 6 The third embodiment of the present application provides a clothes drying machine 3, comprising: a control chip 23, a lifting drive module 21, a monitoring module 25 and a clothes drying rod 31;

[0055] The control chip 23 is connected to the lifting drive module 21, and the lifting drive module 21 is connected to the clothes drying rod 31. The control chip 23 drives the clothes drying rod 31 to move up and down through the lifting drive module 21;

[0056] The monitoring module 25 is connected to the control chip 23. The monitoring module 25 is used to monitor the operating speed of the lifting drive module 21 and send the monitored operating speed information to the control chip 23, so that the control chip 23 determines the load-bearing result of the clothes drying rod 31 according to the operating speed information.

[0057] In a feasible embodiment, the lifting drive module 21 includes a motor and a magnetic component 213; the motor 111 includes a motor rotor; the magnetic component 213 is disposed on the motor rotor; the operating speed information includes a frequency of change of magnetic flux, and the frequency of change of magnetic flux is positively correlated with the rotation speed of the motor rotor;

[0058] When the motor rotor rotates and drives the clothes drying rod 31 to rise and fall, the magnetic component 213 rotates as the motor rotor rotates. The monitoring module 25 sends the changing frequency of the magnetic flux when the magnetic component 213 rotates to the control chip 23.

[0059] In a feasible embodiment, the magnetic component 213 includes an annular magnet 2131 , and the annular magnet 2131 is sleeved on the motor rotor, and the motor rotor drives the annular magnet 2131 to rotate;

[0060] The annular magnet 2131 includes a plurality of first magnetic portions and second magnetic portions arranged at intervals; the first magnetic portions and the second magnetic portions are evenly arranged on the annular magnet 2131;

[0061] The monitoring module 25 is disposed in the magnetic field formed by the first magnetic portion and the second magnetic portion.

[0062] In a feasible embodiment, the monitoring module 25 includes a first Hall sensor and a second Hall sensor, and the first Hall sensor and the second Hall sensor are arranged at intervals around the annular magnet 2131; when the annular magnet 2131 rotates to the interval between the first magnetic part and the second magnetic part corresponding to the first Hall sensor, the second Hall sensor corresponds to the first magnetic part or the second magnetic part.

[0063] It should be noted that the clothes drying machine provided in the third embodiment of the present application and the clothes drying rod load-bearing detection circuit of the first embodiment of the present application and the clothes drying rod load-bearing detection device of the second embodiment belong to the same concept. The implementation process is detailed in the first embodiment or the second embodiment and will not be repeated here.

[0064] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clothes-drying rod load detection circuit, characterized in that: include: Driving branch and monitoring branch; The driving branch is connected to the clothes-drying rod, and the driving branch drives the clothes-drying rod to move up and down; The monitoring branch is used to monitor the running speed of the driving branch, so as to determine the load-bearing result of the clothes drying rod according to the running speed information obtained by monitoring.

2. The clothes-drying-rod load-bearing detection circuit according to claim 1, characterized in that: The driving branch includes a motor and a magnetic component; the motor is provided with a motor rotor; the magnetic component is arranged on the motor rotor; the operating speed information includes a frequency of change of the magnetic flux, and the frequency of change of the magnetic flux is positively correlated with the rotation speed of the motor rotor; The monitoring branch is used to monitor the frequency of change of the magnetic flux when the motor rotor drives the magnetic component to rotate, so as to determine the load-bearing result of the clothes drying rod.

3. A clothes-drying rod load-bearing detection device, characterized in that: include: Lifting drive module, control chip and monitoring module; The lifting drive module is connected to the clothes drying rod, and the control chip is connected to the lifting drive module. The control chip drives the clothes drying rod to move up and down through the lifting drive module. The monitoring module is connected to the control chip, and is used to monitor the operating speed of the lifting drive module and send the monitored operating speed information to the control chip, so that the control chip determines the load-bearing result of the clothesline according to the operating speed information.

4. The clothes-drying-rod load-bearing detection device according to claim 3, characterized in that: The lifting drive module includes a motor and a magnetic component; the motor includes a motor rotor; the magnetic component is arranged on the motor rotor; the operating speed information includes a frequency of change of the magnetic flux, and the frequency of change of the magnetic flux is positively correlated with the rotation speed of the motor rotor; When the motor rotor rotates to drive the clothes drying rod to rise and fall, the magnetic component rotates along with the rotation of the motor rotor, and the monitoring module sends the changing frequency of the magnetic flux when the magnetic component rotates to the control chip.

5. The clothes-drying-rod load-bearing detection device according to claim 4, characterized in that: The magnetic assembly includes an annular magnet, which is sleeved on the motor rotor, and the motor rotor drives the annular magnet to rotate; The annular magnet includes a plurality of first magnetic parts and second magnetic parts arranged at intervals; the first magnetic parts and the second magnetic parts are evenly arranged on the annular magnet; The monitoring module is disposed in a magnetic field formed by the first magnetic portion and the second magnetic portion.

6. The clothes-drying-rod load-bearing detection device according to claim 5, characterized in that: The monitoring module includes a first Hall sensor and a second Hall sensor, which are arranged at intervals around the annular magnet; when the annular magnet rotates to the interval between the first magnetic part and the second magnetic part, it corresponds to the first Hall sensor, and the second Hall sensor corresponds to the first magnetic part or the second magnetic part.

7. The clothes-drying-rod load-bearing detection device according to claim 6, characterized in that: The clothes drying rod load-bearing detection device further includes a circuit board, which is arranged around the annular magnet; the first Hall sensor and the second Hall sensor are respectively fixed to the circuit board.

8. The clothes-drying-rod load-bearing detection device according to claim 4, characterized in that: The monitoring module includes a Hall sensor; the magnetic assembly includes a first magnetic portion and a second magnetic portion, the first magnetic portion and the second magnetic portion are symmetrically arranged around the motor rotor to form a magnetic field perpendicular to the motor rotor; The Hall sensor is disposed in a magnetic field formed by the first magnetic portion and the second magnetic portion and perpendicular to the motor rotor.

9. A clothes drying machine, characterized in that: include: Control chip, lifting drive module, monitoring module and clothes drying rod; The control chip is connected to the lifting drive module, and the lifting drive module is connected to the clothes drying rod. The control chip drives the clothes drying rod to move up and down through the lifting drive module. The monitoring module is connected to the control chip, and is used to monitor the operating speed of the lifting drive module and send the monitored operating speed information to the control chip, so that the control chip determines the load-bearing result of the clothesline according to the operating speed information.

10. The clothes drying machine according to claim 9, characterized in that: The lifting drive module includes a motor and a magnetic component; the motor includes a motor rotor; the magnetic component is arranged on the motor rotor; the operating speed information includes a frequency of change of the magnetic flux, and the frequency of change of the magnetic flux is positively correlated with the rotation speed of the motor rotor; When the motor rotor rotates to drive the clothes drying rod to rise and fall, the magnetic component rotates along with the rotation of the motor rotor, and the monitoring module sends the changing frequency of the magnetic flux when the magnetic component rotates to the control chip.

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