Intelligent camping car and intelligent cart based on magnetic encoder

Abstract

The utility model discloses an intelligent camping car and an intelligent cart based on a magnetic encoder, and the intelligent camping car comprises a car body, a hub motor, a pull rod, the magnetic encoder used for detecting the angle change of the pull rod, and a controller used for controlling the rotating speed of the hub motor according to the angle change, the angle change between the pull rod and the vehicle body is detected through the magnetic encoder, mechanical rotation is converted into a corresponding electric signal to be transmitted to the controller, the controller outputs a corresponding motor control signal according to the angle change to control the rotating speed of the hub motor, and if the angle between the vehicle body and the push rod is larger than a first angle, the uphill state is recognized; when the rotating speed of the hub motor is increased or the angle between the vehicle body and the push rod is smaller than the first angle, the downhill state or the to-be-stopped state is recognized, the rotating speed of the hub motor is reduced at the moment, and when the angle becomes zero, braking is conducted to stop the vehicle body, so that accurate control over the speed of the camping vehicle is achieved, operation risks are reduced, and the intelligent level of equipment is improved; and the trend of modern intelligent equipment is met.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, and particularly relates to an intelligent camping vehicle and an intelligent trolley based on a magnetic encoder. Background Art

[0002] When camping, campers arrive at the camping site on foot or by driving a vehicle. Usually in valleys, lakesides, or by the sea, campers can build a bonfire, barbecue, have a picnic, or sing. These are the most common camping activities. During the camping process, the vehicle often cannot enter the camping site. Therefore, many things, such as tents, food, etc., are usually placed in a small trolley. The tools needed for camping are usually placed inside the trunk. When in use, the trolley is pushed by hand to the location where camping is needed, which can save physical strength and reduce the handling difficulty.

[0003] Chinese Patent Document CN202322836690.1 discloses an electric camping vehicle. The speed of the camping vehicle is controlled by an acceleration throttle provided on the acceleration throttle. When in use, the user controls the speed of the camping vehicle by rotating the angle of the acceleration throttle. However, this device still needs to control the low gear and high gear of the camping vehicle through a shift knob, and the use is not intelligent enough. Therefore, it is necessary to design a more simple and safe intelligent camping vehicle. Content of the Utility Model

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide an intelligent camping vehicle and an intelligent trolley based on a magnetic encoder, which can synchronize the vehicle speed of the camping vehicle and the trolley with the user's operation intention, provide a smooth use experience, and make the operation more simple and the use safer.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0006] An intelligent camping vehicle based on a magnetic encoder includes a vehicle body, a hub motor, and a pull rod. The hub motor is arranged on the lower side of the vehicle body. The pull rod is located on one side of the vehicle body and can rotate relative to the vehicle body. It also includes a magnetic encoder for detecting the angular change of the pull rod and a controller for controlling the rotational speed of the hub motor according to the angular change. The magnetic encoder is arranged on the pull rod and is electrically connected to the controller.

[0007] In the intelligent camping vehicle based on a magnetic encoder, the magnetic encoder includes a housing, a pull rod fixing member, a magnetic encoding sensor, a magnet, and a rotating shaft. One end of the pull rod is arranged in the pull rod fixing member. The rotating shaft is arranged in the pull rod fixing member and can rotate relative to the housing. The magnet is arranged at one end of the rotating shaft. The magnetic encoding sensor is arranged in the housing on one side of the magnet and can sense the rotation angle of the magnet.

[0008] In the intelligent camping vehicle based on a magnetic encoder, the magnetic encoder further includes two bearings, which are respectively disposed at two ends of the housing, and two ends of the rotating shaft are respectively inserted into one of the bearings.

[0009] In the intelligent camping vehicle based on a magnetic encoder, the rotating shaft is inserted into one end of a pull rod fixing member, a handle is disposed at the other end of the pull rod, and a micro switch for triggering the magnetic encoding inductor is disposed on the handle.

[0010] In the intelligent camping vehicle based on a magnetic encoder, the housing includes a magnetic encoder fixing member, a locking member and a fixing rod. The magnetic encoder fixing member is detachably connected to the locking member. One end of the fixing rod is respectively connected to the magnetic encoder fixing member and the locking member, and the other end of the fixing rod is connected to the vehicle body.

[0011] In the intelligent camping vehicle based on a magnetic encoder, the magnetic encoder further includes two springs for resetting the rotating shaft. The springs are sleeved on the bearings and located in spring grooves at two ends of the pull rod fixing member.

[0012] In the intelligent camping vehicle based on a magnetic encoder, a waterproof cover plate is disposed on the magnetic encoder fixing member, and a sealing ring is disposed at the waterproof cover plate.

[0013] An intelligent trolley based on a magnetic encoder includes a vehicle body, a hub motor and a push rod. The hub motor is disposed on the lower side of the vehicle body. The push rod is located on one side of the vehicle body. A handle capable of relatively rotating is disposed on the push rod. The intelligent trolley further includes a magnetic encoder for detecting an angular change of the handle and a controller for controlling the rotational speed of the hub motor according to the angular change. The magnetic encoder is disposed on the handle and electrically connected to the controller.

[0014] In the intelligent trolley based on a magnetic encoder, the magnetic encoder includes a housing, a handle fixing member, a magnetic encoding inductor, a magnet and a rotating shaft. One end of the handle is disposed in the handle fixing member. The rotating shaft is disposed in the handle fixing member and can rotate relative to the housing. The magnet is disposed at one end of the rotating shaft. The magnetic encoding inductor is disposed in the housing and on one side of the magnet, and can sense the rotation angle of the magnet.

[0015] In the intelligent trolley based on a magnetic encoder, the magnetic encoder further includes two springs for resetting the rotating shaft. The springs are sleeved on the bearings and located in spring grooves at two ends of the handle fixing member.

[0016] Compared with the prior art, the intelligent camping cart and intelligent trolley provided by the present utility model detect the angle change between the pull rod and the vehicle body or between the handle and the push rod through a magnetic encoder, convert the mechanical rotation into corresponding electrical signals and transmit them to the controller. The controller outputs corresponding motor control signals according to the angle change to control the rotation speed of the hub motor. For example, when the angle between the vehicle body and the push rod is greater than the first angle, it is identified as an uphill state, and the rotation speed of the hub motor is increased. Or when the angle between the vehicle body and the push rod is less than the first angle, it is identified as a downhill or waiting-to-stop state. At this time, the rotation speed of the hub motor is reduced until the angle becomes zero, and the brake stops the vehicle body, realizing precise control of the speed of the camping cart or intelligent trolley, reducing the operation risk, and the operation is extremely simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a partial structural schematic diagram of the intelligent camping cart based on a magnetic encoder provided by the present utility model.

[0018] Figure 2 FIG. is a sectional structural schematic diagram of the intelligent camping cart based on a magnetic encoder provided by the present utility model.

[0019] Figure 3 FIG. is an exploded structural schematic diagram of the magnetic encoder in the intelligent camping cart and intelligent trolley based on a magnetic encoder provided by the present utility model.

[0020] Figure 4 FIG. is a sectional structural schematic diagram of the magnetic encoder in the intelligent camping cart and intelligent trolley based on a magnetic encoder provided by the present utility model

[0021] Figure 5 FIG. is a structural schematic diagram of the intelligent trolley based on a magnetic encoder provided by the present utility model.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS

[0023] Intelligent camping cart 100, vehicle body 1, hub motor 11, pull rod 2, handle 21, magnetic encoder 3, housing 31, magnetic encoder fixing part 311, locking part 312, fixing rod 313, pull rod fixing part 32, magnetic encoding inductor 33, magnet 34, rotating shaft 35, bearing 36, spring 37, waterproof cover plate 38, sealing ring 381, micro switch 4, intelligent trolley 200, vehicle body 1, push rod 6, handle 7, handle fixing part 32 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] Please refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 , the intelligent camping vehicle 100 provided by the utility model based on a magnetic encoder includes a vehicle body 1, a hub motor 11 and a pull rod 2. The hub motor 11 is arranged on the lower side of the vehicle body 1, and the articles placed in the vehicle body 1 are carried by the rotation of the hub motor 11.

[0026] The pull rod 2 is located on one side of the vehicle body 1, hinged to the vehicle body 1 and can rotate relative to the vehicle body 1. The intelligent camping vehicle based on the magnetic encoder of the utility model further includes a magnetic encoder 3 for detecting the angular change of the pull rod 2 and a controller (not shown in the figure) for controlling the rotation speed of the hub motor 11 according to the angular change. The magnetic encoder 3 is arranged on the pull rod 2 and is electrically connected to the controller.

[0027] During use, when the pull rod 2 is pulled, the magnetic encoder 3 senses the angular change between the pull rod 2 and the vehicle body 1, and intelligently controls the rotation speed of the hub motor 11 to ensure that the vehicle speed of the camping vehicle is synchronized with the user's operation intention, improving the use experience. For example, when the magnetic encoder 3 detects that the angle between the pull rod 2 and the vehicle body 1 (which can also be understood as the angle between the pull rod 2 and the vertical line) becomes larger, such as greater than the first angle (such as 30 degrees), it is determined that the user may be accelerating away from the camping vehicle or going uphill, then the output power of the hub motor 11 is increased, and the rotation speed of the hub motor 11 is increased to make the camping vehicle keep up with the user's speed or assist in climbing; when the magnetic encoder 3 detects that the angle between the pull rod 2 and the vehicle body 1 becomes smaller, such as less than the first angle (such as 0 - 30 degrees), it is determined that the user may be decelerating and approaching the camping vehicle or going downhill, then the output power of the hub motor 11 is reduced, and the steep slope descent mode is entered to make the camping vehicle decelerate forward; when the magnetic encoder 3 detects that the angle between the pull rod 2 and the vehicle body 1 is 0, the rotation of the hub motor 11 is controlled to stop, making the camping vehicle stop moving forward.

[0028] The utility model determines whether to increase the output function, reduce the output power, idle, stall or reverse according to the rate of the angular change between the pull rod 2 and the vehicle body detected by the magnetic encoder 3 and the speed information fed back by the hub motor 11, so as to achieve the same traveling speed as the user. Moreover, when using the camping vehicle, the user can easily control the camping vehicle through the pull rod 2, avoiding the need to manually adjust the speed, simplifying the operation process, enabling the user to use the camping vehicle without learning, and also improving the safety under working conditions such as going downhill.

[0029] Among them, the magnetic encoder 3 includes a housing 31, a pull rod fixing member 32, a magnetic encoding inductor 33, a magnet 34, and a rotating shaft 35. One end of the pull rod 2 is disposed in the pull rod fixing member 32. The rotating shaft 35 is disposed in the pull rod fixing member 32 and can rotate relative to the housing 31. The magnet 34 is disposed at one end of the rotating shaft 35. The magnetic encoding inductor 33 is disposed in the housing 31 on one side of the magnet 34 and can sense the rotation angle of the magnet 34. When the pull rod 2 rotates, the rotating shaft 35 rotates synchronously, so that the magnet 34 on the rotating shaft 35 rotates synchronously. Furthermore, a certain angle difference is generated between the magnet 34 and the magnetic encoding inductor 33, causing the magnetic field to change. The magnetic encoding inductor 33 senses the magnetic field change and generates a corresponding electrical signal to feedback to the controller. The controller knows the angle between the pull rod and the vehicle body according to the electrical signal feedback by the magnetic encoding inductor 33, and correspondingly controls the rotational speed of the hub motor 11 to achieve the control of the camping vehicle speed.

[0030] Furthermore, when the pull rod 2 is pushed backward, the angle between the pull rod 2 and the vertical line can be a negative angle. The rotating shaft 35 rotates reversely synchronously. The magnetic encoding inductor 33 detects the reverse angle, causing the hub motor to reverse, so that the camping vehicle can reverse. And the reverse vehicle speed can be controlled according to the magnitude of the reverse angle between the pull rod 2 and the vehicle body 1. Of course, a changeover switch (not labeled in the figure) can also be provided on the handle 21. When the changeover switch is turned on, pulling the pull rod 2 can achieve reverse, and the reverse speed can be controlled according to the angle of the pull rod 2. The present utility model does not limit this.

[0031] The magnetic encoder 3 further includes two bearings 36. The bearings 36 are respectively disposed at both ends of the housing 31. Both ends of the rotating shaft 35 are respectively inserted into a bearing 36. By means of the bearings 36, the friction between the rotating shaft 35 and the housing 31 can be significantly reduced, which helps to improve the response speed and accuracy of the magnetic encoder 3, helps to extend the service life of the magnetic encoder 3, and also improves the maintainability of the magnetic encoder 3.

[0032] Please continue to refer to Figures 2 to 4 , the rotating shaft 35 is inserted into one end of the pull rod fixing member 32. The other end of the pull rod 2 is provided with a handle 21. A micro switch 4 for triggering the magnetic encoding inductor 33 is provided on the handle 21. When the user holds the handle 21, the micro switch 4 can be triggered, causing the magnetic encoding inductor 33 to start immediately and detect the rotation angle of the rotating shaft 35, so as to achieve precise control.

[0033] Specifically, the housing 31 includes a magnetic encoder fixing member 311, a locking member 312, and a fixing rod 313. The magnetic encoder fixing member 311 and the locking member 312 are detachably connected by bolts. One end of the fixing rod 313 is connected to the magnetic encoder fixing member 311 and the locking member 312 respectively, and the other end of the fixing rod 313 is connected to the vehicle body 1. The magnetic encoder 3 is fixed to the vehicle body 1 through the fixing rod 313, so as to facilitate the detection of the angle change between the connecting rod and the vehicle body 1. The magnetic encoder 3 can also be quickly disassembled and assembled through the magnetic encoder fixing member 311 and the locking member 312, which is convenient for the maintenance and adjustment of the magnetic encoder 3 and improves the installation or repair efficiency.

[0034] Preferably, the magnetic encoder 3 further includes two springs 37 for resetting the rotating shaft 35. The springs 37 are torsion springs, sleeved on the bearing 36 and located in the spring grooves 37 at both ends of the pull rod fixing member 32. The pull rod fixing member 32 can be reset through the springs 37, so that the pull rod 2 is synchronously reset, avoiding the pull rod 2 from tipping over and being damaged due to the user accidentally loosening the pull rod 2 or triggering the magnetic encoder 3 to cause the camping cart to get out of control.

[0035] A waterproof cover 38 is provided on the magnetic encoder fixing member 311, and a sealing ring 381 is provided at the waterproof cover 38. The waterproof performance of the magnetic encoder 3 is improved through the waterproof cover 38 and the sealing ring 381, so that the camping cart can be suitable for use in various outdoor environments.

[0036] Please refer to Figure 3 、 Figure 4 and Figure 5 As shown in, a smart cart 200 based on a magnetic encoder 3 provided by the present utility model includes a vehicle body 1, a hub motor 11, and a push rod 6. The hub motor is arranged on the lower side of the vehicle body 1, the push rod 6 is located on one side of the vehicle body 1, and a relatively rotatable handle 7 is provided on the push rod 6. The smart cart 200 further includes a magnetic encoder 3 for detecting the angle change of the handle 7 and a controller for controlling the rotation speed of the hub motor 11 according to the angle change. The magnetic encoder 3 is arranged on the handle 7 and is electrically connected to the controller.

[0037] During use, the magnetic encoder 3 senses the angle change between the handle 7 and the push rod 6, and intelligently controls the rotational speed of the hub motor to ensure that the vehicle speed of the trolley is synchronized with the user's operation intention, providing a smooth user experience. For example, when the magnetic encoder 3 detects that the angle between the handle 7 and the push rod 6 becomes larger, it is judged that the user may be pushing the trolley hard or going uphill, and then the output power of the hub motor is increased to make the camping trolley keep up with the user's speed or assist in climbing the slope; when the magnetic encoder 3 detects that the angle between the handle 7 and the push rod 6 becomes smaller, it is judged that the user may be decelerating or going downhill, and then the output power of the hub motor is reduced to enter the hill descent control mode to make the trolley decelerate forward; when the magnetic encoder 3 detects that the angle between the pull rod 2 and the vehicle body 1 is 0, the rotation of the hub motor is controlled to stop, making the trolley stop moving forward.

[0038] The present utility model converts the angle change detected by the magnetic encoder 3 between the pull rod 2 and the vehicle body into an electrical signal, and transmits these signals to the controller. After receiving the electrical signal, the controller adjusts the rotational speed of the hub motor according to a pre-designed control algorithm, thereby controlling the speed of the trolley.

[0039] The magnetic encoder 3 includes a housing 31, a handle fixing member 32, a magnetic encoding sensor 33, a magnet 34, and a rotating shaft 35. One end of the handle 7 is disposed in the handle fixing member 32. The rotating shaft 35 is disposed in the handle fixing member 32 and can rotate relative to the housing 31. The magnet 34 is disposed at one end of the rotating shaft 35. The magnetic encoding sensor 33 is disposed in the housing 31 and on one side of the magnet 34, and can sense the rotation angle of the magnet 34. When the handle 7 rotates, the rotating shaft 35 rotates synchronously, so that the magnet 34 on the rotating shaft 35 rotates synchronously, and then an angle is generated between the magnet 34 and the magnetic encoding sensor 33. The angle received by the magnetic encoding sensor 33 is fed back to the controller, and the controller controls the rotational speed of the hub motor to achieve the control of the vehicle speed of the trolley.

[0040] Further, when the user slightly lifts the handle 7, the rotating shaft 35 rotates reversely synchronously, and the magnetic encoding sensor 33 detects a reverse angle, causing the hub motor to rotate reversely, so that the trolley can reverse, and the vehicle speed of the reverse can be controlled according to the magnitude of the reverse angle between the pull rod 2 and the vehicle body 1.

[0041] Preferably, the magnetic encoder 3 further includes two springs 37 for resetting the rotating shaft 35. The springs 37 are sleeved on the bearings 36 and located in the spring grooves 37 at both ends of the handle fixing member 32. The handle fixing member 32 can be reset through the springs 37, so that the handle 7 is reset synchronously, avoiding the handle 7 from toppling and being damaged due to the user casually loosening the pull rod 2 or triggering the magnetic encoder 3 to cause the trolley to lose control.

[0042] In this embodiment, a magnetic encoder (not shown in the figure) can also be added at the connection between the pull rod 2 and the vehicle body 1 (or at the connection between the push rod 6 and the vehicle body 1). By this magnetic encoder 3, the change in the horizontal angle between the cart and the vehicle body 1 is detected (the change in the horizontal angle between the push rod 6 and the vehicle body 1 is detected), the steering intention of the user is judged, and the controller controls the hub motor to perform differential control, assisting the user to turn more easily and accurately, so that the intelligent camping cart and the intelligent trolley 200 can achieve more intelligent and user-friendly operations, greatly improving the usability and safety of the vehicle.

[0043] In actual use, the magnetic encoder 3 can also be replaced with a Hall sensor, which can also achieve the effect of angle change detection, so it is also within the protection scope of the present invention.

[0044] In summary, the intelligent camping cart and intelligent trolley provided by the present invention based on a magnetic encoder use the magnetic encoder to detect the angle change between the pull rod and the vehicle body or between the handle and the push rod, convert the mechanical rotation into an electrical signal and transmit it to the controller. After receiving the electrical signal, the controller calculates the required rotational speed of the hub motor through the built-in control algorithm, and finally the controller outputs a control signal to the hub motor to adjust its rotational speed, realizing the precise control of the speed of the camping cart or the intelligent trolley. The present invention reduces the operation risk and improves the intelligent level of the device through the above technical solutions, meeting the trend of modern intelligent devices. Since the controller is a conventional controller purchased on the market (such as the controller used on a balance bike), it is prior art and will not be described in detail here.

[0045] In addition, the present invention also has the advantages of simple structure, simple operation, precise control, safety, etc. The design that is easy to operate and maintain improves the user's satisfaction and usage experience with the product.

[0046] It can be understood that for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present invention, and all such changes or replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. An intelligent camping vehicle based on a magnetic encoder, comprising a vehicle body, hub motors and a pull rod. The hub motors are arranged on the lower side of the vehicle body, and the pull rod is located on one side of the vehicle body and can rotate relative to the vehicle body. It is characterized in that, It further includes a magnetic encoder for detecting the angular change of the pull rod and a controller for controlling the rotational speed of the hub motor according to the angular change. The magnetic encoder is arranged on the pull rod and electrically connected to the controller.

2. The intelligent camping vehicle based on a magnetic encoder according to claim 1, wherein The magnetic encoder includes a housing, a pull rod fixing member, a magnetic encoding inductor, a magnet and a rotating shaft. One end of the pull rod is arranged in the pull rod fixing member. The rotating shaft is arranged in the pull rod fixing member and can rotate relative to the housing. The magnet is arranged at one end of the rotating shaft. The magnetic encoding inductor is arranged in the housing and on one side of the magnet, and can sense the rotation angle of the magnet.

3. The intelligent camping vehicle based on a magnetic encoder according to claim 2, wherein, The magnetic encoder further includes two bearings which are respectively placed at both ends of the housing, and both ends of the rotating shaft are respectively inserted into a bearing.

4. The intelligent camping vehicle based on a magnetic encoder according to claim 2, wherein, The rotating shaft is inserted into one end of the pull rod fixing member. A handle is arranged at the other end of the pull rod, and a microswitch for triggering the magnetic encoding inductor is arranged on the handle.

5. The intelligent camping vehicle based on a magnetic encoder according to any one of claims 2-4, characterized in that, The housing includes a magnetic encoder fixing member, a locking member and a fixing rod. The magnetic encoder fixing member is detachably connected to the locking member. One end of the fixing rod is connected to the magnetic encoder fixing member and the locking member respectively, and the other end of the fixing rod is connected to the vehicle body.

6. The intelligent camping vehicle based on a magnetic encoder according to claim 3, wherein, The magnetic encoder further includes two springs for resetting the rotating shaft. The springs are sleeved on the bearings and located in the spring grooves at both ends of the pull rod fixing member.

7. The intelligent camping vehicle based on a magnetic encoder according to claim 5, wherein, A waterproof cover plate is arranged on the magnetic encoder fixing member, and a sealing ring is arranged at the waterproof cover plate.

8. An intelligent trolley based on a magnetic encoder, comprising a vehicle body, a hub motor and a push rod. The hub motor is arranged on the lower side of the vehicle body, and the push rod is located on one side of the vehicle body. It is characterized in that, A rotatable handle is arranged on the push rod. The intelligent trolley further includes a magnetic encoder for detecting the angular change of the handle and a controller for controlling the rotational speed of the hub motor according to the angular change. The magnetic encoder is arranged on the handle and electrically connected to the controller.

9. The intelligent trolley based on a magnetic encoder according to claim 8, wherein The magnetic encoder includes a housing, a handle fixing member, a magnetic encoding inductor, a magnet and a rotating shaft. One end of the handle is arranged in the handle fixing member. The rotating shaft is arranged in the handle fixing member and can rotate relative to the housing. The magnet is arranged at one end of the rotating shaft. The magnetic encoding inductor is arranged in the housing and on one side of the magnet, and can sense the rotation angle of the magnet.

10. The intelligent trolley based on a magnetic encoder according to claim 9, wherein, The magnetic encoder further includes two springs for resetting the rotating shaft. The springs are sleeved on the bearings and located in the spring grooves at both ends of the handle fixing member.

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