Dampers, main control unit, power unit and control system

Abstract

The utility model belongs to the field of rehabilitation training facilities, and discloses a damper, a control main box, a power car and a control system, wherein the damper includes a support device, a rotating device, a stator assembly, a rotor assembly and an excitation coil; the rotating device is rotatably connected to the support device through a first bearing; the rotor assembly is fixedly connected to the rotating device and forms a receiving chamber with an opening on one side; the stator assembly is fixedly connected to the support device and is located in the receiving chamber and is rotatably connected to the rotating device through a second bearing; the excitation coil is located in the rotor assembly and is wound around one end of the stator assembly away from the rotating device, and after the excitation current is passed through the excitation coil, multiple pairs of N and S pole induced magnetic fields are formed in the entire circumferential range of the stator assembly. The utility model helps to make the resistance of each damper consistent with the current relationship, ensuring that the damper can be mass-produced.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation training facilities, in particular to a damper, a control main box, a power car and a control system. Background Art

[0002] Power bikes can exercise the user's cardiopulmonary function and are typical aerobic fitness equipment that simulates outdoor sports. Currently, power bikes increase exercise loads through electromagnetically controlled resistance devices, but in the prior art, the excitation coil is usually installed on the outside of the rotor of the damper. For example, a rotary magnetorheological damper with patent publication number CN102979847B is manufactured by winding the excitation coil around the rear cover and the front cover connected to the outer cylindrical side wall of the rotor, and the excitation coil part is a post-installed part, and its assembly process is not easy to control. The gap between the excitation coil assembled on each damper and the outer rotor is inconsistent, resulting in an inconsistent relationship between the resistance and current of each damper. The performance of each damper is unstable, which affects the mass production of the product, and the assembly process is relatively complicated, requiring additional operating steps and professional techniques, resulting in low production efficiency and increased production costs and labor costs. Utility Model Content

[0003] The main purpose of the present application is to provide a damper, a control main box, a power car and a control system, aiming to solve the technical problem that the existing excitation coil is installed on the outside of the rotor of the damper.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a damper, including a supporting device, a rotating device, a stator assembly, a rotor assembly and an excitation coil;

[0005] The rotating device is rotatably connected to the supporting device via a first bearing;

[0006] The rotor assembly is fixedly connected to the rotating device and forms a receiving chamber with an opening on one side;

[0007] The stator assembly is fixedly connected to the supporting device, and is located in the accommodating chamber and is rotatably connected to the rotating device via a second bearing;

[0008] The excitation coil is located in the rotor assembly and is wound around one end of the stator assembly away from the rotating device. After the excitation current is passed through the excitation coil, a plurality of pairs of N and S pole induced magnetic fields are formed in the entire circumferential range of the stator assembly.

[0009] Furthermore, a through hole for the rotating device to pass through is provided on a side opposite to the opening of the rotor assembly, and the entire circumferential edge of the through hole extends toward the stator assembly to form a boss for wrapping the rotating device.

[0010] Furthermore, the supporting device includes a first bracket located on both sides of the rotor assembly, and a second bracket corresponding to the first bracket, and at least one limiting rod is provided between the first bracket and the second bracket.

[0011] Further, the rotating device includes a synchronous pulley and a rotating shaft that penetrates the supporting device, the rotor assembly and the stator assembly, and the synchronous pulley is fixedly connected to one end of the rotating shaft close to the first bracket;

[0012] The rotating device also includes a code disk fixedly connected to one end of the rotating shaft close to the second bracket, and a plurality of holes are arranged on the code disk, wherein the plurality of holes are spaced apart and arranged on the entire circumferential edge of the code disk.

[0013] The utility model also proposes a control main box, including the damper described above, a shell, and a transmission device fixedly connected to a support frame in the shell, and the transmission device is connected to the damper through a first belt.

[0014] Further, the support frame includes a first support frame, and a second support frame fixedly connected between the first support frame and the bottom of the shell;

[0015] The transmission device includes a turntable, a first pulley and a second pulley, the turntable is arranged on the second support frame, the second pulley and the first pulley are arranged on both sides of the second support frame corresponding to the first pulley, wherein the second pulley is connected to the turntable through a second belt, and the first pulley is connected to the damper through the first pulley.

[0016] The utility model also provides a power vehicle, comprising the above-mentioned main control box and a vehicle frame, wherein the main control box is fixedly connected to the vehicle frame.

[0017] The utility model also proposes a control system for a power vehicle, which is applied to the power vehicle described above, and includes a power supply unit, and a main control unit, a human-computer interaction module and a sampling sensor module connected to the power supply unit;

[0018] The power supply unit is arranged on the control main box and is used to provide electric energy;

[0019] The sampling sensor module is used to collect multiple information of the damper and send it to the main control unit;

[0020] The human-computer interaction module is used to display the working information of the damper and control the working mode of the damper through the main control unit.

[0021] Furthermore, the main control unit includes a control module and a storage module, the storage module is used to store data on the nonlinear relationship between resistance and current obtained in advance through experiments; the control module is used to control the working state of the damper according to the information of the sampling sensor module and through the data of the storage module.

[0022] Furthermore, the sampling sensing module includes a sampling resistor, a light sensor and a temperature sensor; the sampling resistor is used to collect current information of the damper and send it to the control module; the light sensor is used to collect light information of the damper and send it to the control module; the temperature sensor is used to collect temperature information of the damper and send it to the control module.

[0023] Beneficial effects:

[0024] The utility model locates the excitation coil in the rotor assembly and winds it around the end of the stator assembly away from the rotating device, so there is no need to reserve additional space for the excitation coil, thereby reducing the size of the entire damper. During the assembly process, since the gap between the excitation coil and the rotor can be directly controlled on the stator assembly, it is ensured that the gap between the excitation coil and the rotor of each damper is consistent, which helps to make the relationship between the resistance and current of each damper consistent, improves the performance stability and consistency of the product, ensures that the damper can be mass-produced, improves production efficiency, reduces assembly steps, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a damper according to an embodiment of the utility model;

[0026] Figure 2 Another embodiment of the utility model Figure 1 Sectional view at AA;

[0027] Figure 3 This is a schematic diagram of a control main box of an embodiment of the utility model;

[0028] Figure 4 It is a control system flow chart of a power vehicle according to an embodiment of the utility model.

[0029] in:

[0030] 1. Support device; 2. Rotating device; 3. Stator assembly; 4. Rotor assembly; 5. Excitation coil; 6. Shell; 7. Transmission device; 8. Support frame; 9. Damper; 10. Control main box;

[0031] 11. first bracket; 12. second bracket; 13. limit rod; 14. first bearing; 15. second bearing;

[0032] 20. Synchronous pulley; 21. Rotating shaft; 22. Code disc; 23. Orifice;

[0033] 40. Boss;

[0034] 70, turntable; 71, second pulley; 72, first pulley; 73, first belt; 74, second belt;

[0035] 80. a first support frame; 81. a second support frame;

[0036] 100, power supply unit; 101, main control unit; 102, human-computer interaction module; 103, sampling sensor module;

[0037] 1011. control module; 1012. storage module;

[0038] 1031, sampling resistor; 1032, light sensor; 1033, temperature sensor.

[0039] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] Reference Figure 1-Figure 2 This embodiment proposes a damper 9, comprising a supporting device 1, a rotating device 2, a stator assembly 3, a rotor assembly 4 and an excitation coil 5; the rotating device 2 is rotatably connected to the supporting device 1 through a first bearing 14; the rotor assembly 4 is fixedly connected to the rotating device 2 and forms a accommodating chamber with an opening on one side; the stator assembly 3 is fixedly connected to the supporting device 1, and is located in the accommodating chamber and is rotatably connected to the rotating device 2 through a second bearing 15; the excitation coil 5 is located in the rotor assembly 4 and is wound around one end of the stator assembly 3 away from the rotating device 2. After the excitation current is passed through the excitation coil 5, a plurality of pairs of N and S pole induced magnetic fields are formed in the entire circumferential range of the stator assembly 3.

[0045] In the above embodiment, a damper 9 includes a supporting device 1, a rotating device 2, a stator assembly 3, a rotor assembly 4 and an excitation coil 5, wherein the rotating device 2 is rotatably connected to the supporting device 1 through a first bearing 14 connected to the supporting device 1, and the rotor assembly 4 is fixedly connected to the rotating device 2 and forms a receiving chamber with one side open, so that the rotor assembly 4 is a bowl-shaped structure with one side open, which helps the stator assembly 3 to be directly installed into the rotor assembly 4 from the opening, simplifies the installation and maintenance process, and improves the installation efficiency. The stator assembly 3 is fixedly connected to the supporting device 1 by bolts, and the stator assembly 3 is located in the receiving chamber and is rotatably connected to the rotating device 2 through two second bearings 15, wherein the stator assembly 3 is used for The size of the bearing connecting the rotating device 2 is the same as the size of the two bearings used to connect the stator assembly 3, ensuring that the force distribution of each component of the entire damper 9 is more uniform when bearing the load, which helps to reduce the risk of stress concentration and structural damage caused by uneven force distribution; the connection end of the rotor assembly 4 and the rotating device 2 is located between the stator assembly 3 and the support device 1, so that the stator assembly 3 is located in the rotor assembly 4, wherein the material of the stator assembly 3 and the rotor assembly 4 is preferably a high-saturation soft magnetic alloy material, which helps to effectively reduce the leakage and magnetic loss of the magnetic field through a higher saturation magnetic induction intensity and a low hysteresis loop; the excitation coil 5 is wound around the end of the stator assembly 3 away from the rotating device 2, so that the excitation coil 5 is located inside the rotor assembly 4, wherein the excitation coil 5 is preferably wound around the stator assembly 3 through four pairs of mutually symmetrical excitation coils 5. In addition, when the excitation coil 5 is wound around the stator assembly 3, a specified gap is formed between the excitation coil 5 and the rotor assembly 4, which reduces the magnetic contact between the excitation coil 5 and the rotor assembly 4, reduces the hysteresis loss and the eddy current loss, and helps to improve the energy efficiency of the damper 9 and reduce energy consumption. The excitation coil 5 is preferably made of copper-nickel alloy, which improves its good electrical conductivity, can effectively conduct current, and ensure that the excitation coil 5 generates a stable magnetic field. When the excitation current is passed through the excitation coil 5, four pairs of N and S pole induced magnetic fields are formed within the entire 360-degree range of the circumference of the stator assembly 3. , ensuring a more uniform magnetic field distribution and improving the stability and efficiency of the entire damper 9. Therefore, by arranging the excitation coil 5 in the rotor assembly 4 and winding it around the end of the stator assembly 3 away from the rotating device 2, it is not necessary to reserve additional space for the excitation coil 5, thereby reducing the size of the entire damper 9. In addition, during the assembly process, since the gap between the excitation coil 5 and the rotor can be directly controlled on the stator assembly 3, the gap between the excitation coil 5 and the rotor of each damper 9 is ensured to be consistent, so that the relationship between the resistance and current of each damper 9 is consistent, thereby improving the performance stability and consistency of the product, ensuring that the damper 9 can be mass-produced, improving production efficiency, reducing assembly steps, and reducing production costs.

[0046] Reference Figure 1-Figure 2In one embodiment, a through hole for the rotating device 2 to pass through is provided on the side opposite to the opening of the rotor assembly 4, and the entire circumferential edge of the through hole extends toward the stator assembly 3 to form a boss 40 for wrapping the rotating device 2.

[0047] In the above embodiment, the side opposite to the opening of the rotor assembly 4 is a bottom plate fixedly connected to the rotating device 2, and a through hole for the rotating device 2 to pass through is provided at the center of the bottom plate, and the entire circumferential edge of the through hole extends toward the stator assembly 3 to form a boss 40 of a certain height, and the boss 40 is mainly used to wrap the part of the rotating device 2 passing through the side opposite to the opening of the rotor assembly 4, so that the rotating device 2 is fixedly connected to the through hole by an interference fit. Through the design of the boss 40 and the through hole, the rotating device 2 is firmly connected to the rotor assembly 4 and is also accurately positioned at the desired position, ensuring that the rotating device 2 is firmly connected to the rotor assembly 4. The accurate alignment between the subassembly 4 and the rotating device 2 improves the accuracy and stability of the entire damper 9; further, when the excitation coil 5 is wound on the stator assembly 3, the gap distance between the excitation coil 5 and the bottom plate of the rotor assembly 4 is greater than or equal to the gap distance between the side walls on both sides of the bottom plate of the stator assembly 3 and the rotor assembly 4. While making full use of the internal space of the rotor assembly 4, the larger gap between the excitation coil 5 and the bottom plate of the rotor assembly 4 can reduce the leakage of the magnetic field of the excitation coil 5 from the bottom plate of the rotor assembly 4, thereby reducing the leakage magnetic loss of the magnetic field, which helps to improve the energy utilization efficiency of the damper 9.

[0048] Reference Figure 1-Figure 2 In one embodiment, the supporting device 1 includes a first bracket 11 located on both sides of the rotor assembly 4, and a second bracket 12 corresponding to the first bracket 11, and at least one limiting rod 13 is arranged between the first bracket 11 and the second bracket 12.

[0049] In the above embodiment, the supporting device 1 includes a first bracket 11 and a second bracket 12, wherein the first bracket 11 and the second bracket 12 are symmetrically arranged on both sides of the rotor assembly 4, thereby increasing the overall rigidity of the rotor assembly 4, improving the torsion resistance and deformation resistance of the rotor assembly 4, and ensuring that the rotor assembly 4 maintains stability during high-speed operation; in addition, the first bracket 11 and the second bracket 12 are preferably of triangular design, so that three limit rods 13 are arranged at the three corners between the first bracket 11 and the second bracket 12, and the limit rods 13 are adjustably arranged between the first bracket 11 and the second bracket 12 by bolts, and the distance between the first bracket 11 and the second bracket 12 can be adjusted as needed by adjusting the nuts connecting the first bracket 11 and the second bracket 12 on both sides of the limit rods 13, thereby ensuring that the rotor assembly 4 can be fine-tuned according to actual conditions during debugging and operation, ensuring that the rotor assembly 4 is in the optimal position, and improving the performance and efficiency of the damper 9.

[0050] Reference Figure 1-Figure 2 In one embodiment, the rotating device 2 includes a synchronous pulley 20, and a rotating shaft 21 that passes through the supporting device 1, the rotor assembly 4 and the stator assembly 3, and the synchronous pulley 20 is fixedly connected to one end of the rotating shaft 21 close to the first bracket 11; the rotating device 2 also includes a code disk 22 that is fixedly connected to one end of the rotating shaft 21 close to the second bracket 12, and a plurality of openings 23 are provided on the code disk 22, wherein the plurality of openings 23 are arranged at intervals on the entire circumferential edge of the code disk 22.

[0051] In the above embodiment, the rotating device 2 includes a synchronous pulley 20 and a rotating shaft 21, wherein the rotating shaft 21 is respectively arranged through the middle positions of the rotor assembly 4, the stator assembly 3, the first bracket 11 and the second bracket 12, the rotating shaft 21 is connected to the first bracket 11 through a bearing, and the synchronous pulley 20 is fixedly connected to one end of the rotating shaft 21 close to the first bracket 11 for connecting to an external structure, and the synchronous pulley 20 is the same size as the boss 40 on the bottom plate of the rotor assembly 4, so that the synchronous pulley 20 and the boss 40 are respectively located on both sides of the middle of the first bracket 11, ensuring that the center of gravity of the rotating shaft 21 will not shift during rotation, reducing the impact caused by imbalance, and improving the operating stability and reliability of the rotating device 2; The rotating device 2 also includes a code disk 22, wherein the code disk 22 is fixedly connected to one end of the rotating shaft 21 close to the second bracket 12 by a tight fit. In addition, a plurality of openings 23 are arranged on the code disk 22, and the plurality of openings 23 are arranged at intervals on the entire circumferential edge of the code disk 22. In addition, a light sensor 1032 arranged on the second bracket 12 corresponds to the openings 23. When the rotating shaft 21 drives the code disk 22 to rotate, the light sensor 1032 can accurately detect the current rotation speed of the rotating shaft 21 through the frequency or pulse number of light changes in the interval-arranged openings 23, and can reflect the rotation speed changes of the rotating shaft 21 in real time, which is helpful to timely adjust the working state of the damper 9 and ensure the stable operation of the damper 9.

[0052] Reference Figure 1-Figure 3 The utility model also proposes a control main box 10, including the damper 9 described in the above embodiment, and also includes a shell 6, and a transmission device 7 fixedly connected to a support frame 8 in the shell 6, and the transmission device 7 is connected to the damper 9 through a first belt 73.

[0053] In the above embodiment, a control main box 10 is also proposed, including a damper 9 and a shell 6, wherein the damper 9 is fixedly connected to the bottom of the support frame 8 through a first bracket 11 and a second bracket 12, and its fixed connection method is a bolt connection, ensuring that the damper 9 can be firmly connected to the support frame 8, not easy to loosen or fall off, and ensuring the overall structural stability of the damper 9; the control main box 10 also includes a transmission device 7, wherein the transmission device 7 is connected to the support frame 8, wherein the shell 6 is two parts relatively symmetrical with the support frame 8, when the transmission device 7 is connected to the support frame 8, the two parts of the shell 6 are respectively fixedly connected to the two sides of the support frame 8 by bolts, ensuring that the transmission device 7 and the damper 9 are located in the shell 6, and the transmission device 7 is connected to the synchronous pulley 20 on the rotating shaft 21 of the damper 9 through a first belt 73, ensuring that the energy transmission loss between the damper 9 and the transmission device 7 is less, which can effectively improve energy utilization and reduce energy consumption.

[0054] Reference Figure 1-Figure 3 In one embodiment, the support frame 8 includes a first support frame 80, and a second support frame 81 fixedly connected between the first support frame 80 and the bottom of the shell 6;

[0055] The transmission device 7 includes a turntable 70, a second pulley 71 and a first pulley 72, the turntable 70 is arranged on the second support frame 81, the second pulley 71 and the first pulley 72 are correspondingly arranged on both sides of the second support frame 81 close to the bottom end of the shell 6, wherein the second pulley 71 is connected to the turntable 70 through a second belt 74, and the first pulley 72 is connected to the damper 9 through the second pulley 71.

[0056] In the above embodiment, the support frame 8 includes a first support frame 80 and a second support frame 81. The first support frame 80 includes a bottom plate and a U-shaped frame, and the open end of the U-shaped frame of the first support frame 80 is fixedly connected to the bottom plate of the first support frame 80 by welding, ensuring the firm connection between the first support frame 80 and the bottom plate of the first support frame 80 through welding. In addition, the second support frame 81 is welded between the top of the first support frame 80 and the bottom plate of the first support frame 80, and the second support frame 81 is arranged obliquely between the first support frame 80 and the bottom plate of the first support frame 80, effectively dispersing the weight of the transmission device 7 on the support frame 8 and reducing its shaking and晃动 during operation, thereby improving the overall stability of the control main chassis 10. Further, the transmission device 7 includes a turntable 70, a second pulley 71, and a first pulley 72. The turntable 70 is arranged at one end of the second support frame 81 close to the top of the first support frame 80, the second pulley 71 is arranged at one end of the second support frame 81 close to the bottom shell of the housing 6 and the turntable 70 and the second pulley 71 are located on the same side, the first pulley 72 is arranged at one end of the second support frame 81 close to the bottom shell of the housing 6 and is arranged corresponding to the second pulley 71. In addition, the sizes of the turntable 70, the first pulley 72, and the second pulley 71 are from large to small. The second pulley 71 is connected to the turntable 70 through a second belt 74, and a tension pulley is arranged between the second pulley 71 and the turntable 70 to adjust the tightness of the second belt 74, ensuring that the second belt 74 always maintains an appropriate tension during operation, which helps to prevent the second belt 74 from becoming loose or too tight during operation and maintaining the stability and reliability of the transmission system.

[0057] Referring to Figure 1-Figure 3 , the present utility model further proposes a power bike, which includes the control main chassis 10 described in the above embodiment, and further includes a frame, and the control main chassis 10 is fixedly connected to the frame.

[0058] In the above embodiment, a power bike is also proposed, which includes a control main chassis 10 and a frame. The control main chassis 10 is fixedly connected to the frame by bolts. When the user is on the frame and drives the turntable 70 of the control main chassis 10 to rotate through the crank pedal, the second pulley 71 and the first pulley 72 rotate coaxially through the second belt 74. Furthermore, the first pulley 72 drives the damper 9 to rotate through the second pulley 71. When the outer rotor of the damper 9 rotates, it cuts the magnetic field generated after the exciting coil 5 is energized to generate eddy currents, obtaining a back electromotive force and a reverse force. Through this reverse force, the resistance applied by the damper 9 to the power bike is obtained. Thus, the resistance of the power bike can be controlled by controlling the current magnitude of the damper 9. The user can adjust the resistance of the power bike according to personal needs and fitness goals. By increasing or decreasing the current of the damper 9, the resistance magnitude can be changed, making the training more challenging or easier, thereby meeting the training needs of different users.

[0059] Reference Figure 4 The utility model also proposes a control system for a power vehicle, which is applied to the power vehicle described in the above embodiment, including a power supply unit 100, and a main control unit 101, a human-computer interaction module 102 and a sampling sensor module 103 connected to the power supply unit 100; the power supply unit 100 is arranged on the control host box 10 to provide electric energy; the sampling sensor module 103 is used to collect multiple information of the damper 9 and send it to the main control unit 101; the human-computer interaction module 102 is used to display the working information of the damper 9 and control the working mode of the damper 9 through the main control unit 101.

[0060] In the above embodiment, a control system of a power car is also proposed, which is mainly used in power cars, including a power supply unit 100, and a main control unit 101, a human-computer interaction module 102 and a sampling sensor module 103 connected to the power supply unit 100, wherein the power supply is a direct current set on the control main box 10, which is used to provide power for the entire power car; the sampling sensor module 103 is used to collect multiple information of the damper 9 and send it to the main control unit 101, which can monitor various parameters and states of the damper 9 in real time, such as current, voltage, temperature, etc., which helps the main control unit 101 to understand the working state of the damper 9 in real time, adjust the control strategy in time, and ensure the normal operation of the power car; the human-computer interaction module 102 is set on the top of the shell 6 of the control main box 10 and is connected to the damper 9, which is used to display the working information of the damper 9 and control the working mode of the damper 9 through the main control unit 101, wherein the human-computer interaction module 102 is preferably a circular 2.1LCD (Liquid Crystal Display The LCD display of the power bike can clearly display the current speed, power and resistance value, and can set the working mode and resistance size by rotating. If it is the constant resistance mode, the resistance size is controlled to remain constant at different speeds. If it is in the constant power mode, the resistance value is adjusted according to the speed to ensure that the power is constant at the set value. In this way, the power bike can be suitable for training modes with different training power, and provides a more convenient operation interface, so that users can intuitively monitor and control the working status of the damper 9, which helps them understand their own exercise status and make corresponding adjustments.

[0061] Reference Figure 4 In one embodiment, the main control unit 101 includes a control module 1011 and a storage module 1012, wherein the storage module 1012 is used to store data of the nonlinear relationship between resistance and current obtained in advance through experiments; the control module 1011 is used to control the working state of the damper 9 according to the information of the sampling sensor module 103 and the data of the storage module 1012;

[0062] In the above embodiment, the main control unit 101 includes a control module 1011 and a storage module 1012, wherein the main control unit 101 is preferably a single-chip microcomputer, the storage module 1012 is a ROM (Read-Only Memory) built into the single-chip microcomputer, and the control module 1011 is a PWM pulse width modulation (Pulse Width Modulation), wherein the storage module 1012 is used to store the data of the nonlinear relationship between resistance and current obtained in advance through experiments, as well as the resistance characteristic data of the damper 9 at different temperatures. After the control module 1011 obtains the speed data of the damper 9, it can directly read the corresponding relationship data between the speed and temperature characteristics of the damper 9 and the output current value of the constant voltage power supply in the ROM, thereby obtaining the current value output under the speed condition at this time, ensuring that the nonlinear relationship between the resistance and current of the damper 9 can be determined, so that the resistance becomes a known and controllable factor, and the precise control of the resistance of the damper 9 is improved; further, the corresponding relationship data between the current and the torque is obtained through experiments and stored in the storage module 1012, wherein the calculation formula of power, speed and torque is: P = n*T / 9.55, wherein P is power (W), n is speed (r / min), that is, the speed of the damper 9, T is torque (Nm), and 9.55 is the conversion coefficient; so when the constant power remains unchanged, when the speed changes, the current that needs to be applied to the damper at this time can be obtained according to the formula. 9's torque, according to the corresponding relationship data, each determined torque can obtain a determined current; the control module 1011 is used to control the working state of the damper 9 according to the information of the sampling sensor module 103 and the data of the storage module 1012, as well as the current required by the damper 9 when controlling different resistance values, wherein the sampling sensor module 103 is connected to the control module 1011, and the speed and temperature of the damper 9 are detected in real time according to the working mode and resistance value set on the human-computer interaction module 102, and the control module 1011 is set to adjust the current required for the corresponding resistance to apply different torques. In addition, the damper 9 is equipped with a detection resistor, which will feed back the resistance value to the control module 1011 in real time. The control module 1011 calculates the real motion power and adjusts the torque of the damper 9 to achieve the effect of torque closed-loop control, so that the motion power control of the power car is more accurate and the adjustment is more refined, which is helpful for constant power setting at different speeds, and constant resistance setting at different speeds can also be achieved, which meets the precise control under various conditions and improves the accurate setting and accurate control of the power car.

[0063] Reference Figure 4In one embodiment, the sampling sensor module 103 includes a sampling resistor 1031, a light sensor 1032 and a temperature sensor 1033; the sampling resistor 1031 is used to collect current information of the damper 9 and send it to the control module 1011; the light sensor 1032 is used to collect light information of the damper 9 and send it to the control module 1011; the temperature sensor 1033 is used to collect temperature information of the damper 9 and send it to the control module 1011.

[0064] In the above embodiment, the sampling sensor module 103 includes a sampling resistor 1031, a light sensor 1032 and a temperature sensor 1033; wherein the sampling resistor 1031 is connected in series with the damper 9 in the same circuit, and is used to collect the current information of the damper 9 and send it to the control module 1011. The sampling resistor 1031 includes but is not limited to a current sampling resistor 1031 or a voltage sampling resistor 1031. As the temperature of the damper 9 increases during use, the resistance capacity will decrease, and the current value is compensated by the sampling resistor 1031, and The sampling resistor 1031 transmits the voltage signal at both ends of itself to the control module 1011. The control module 1011 calculates the current passing through the sampling resistor 1031 at this time according to the voltage signal. The calculation formula of the current in the damper 9 and the value of the sampling resistor 1031 is: I = U / R, where I is the current value in the circuit, R is the resistance value of the sampling resistor 10314, and U is the voltage value at both ends of the sampling resistor 1031 itself. The control module 1011 knows the magnitude of the current flowing through the damper 9 by reading the voltage value. If there is a change, It can be controlled in time; further, the light sensor 1032 is arranged on the second bracket 12 and corresponds to the orifice 23, and is used to collect the light information of the damper 9 and send it to the control module 1011. The light sensor 1032 includes but is not limited to a photoresistor or a grating sensor. The temperature sensor 1033 is arranged on the damper 9 to collect the temperature information of the damper 9 and send it to the control module 1011. The temperature sensor 1033 is preferably a thermistor or a thermocouple. The control module 1011 obtains the current temperature and the current speed value measured by the light sensor 1032 according to the adjustment information and the temperature sensor 1033, and calculates the current value corresponding to the resistance through the previously stored nonlinear relationship to adjust the current required for the corresponding resistance, and applies different resistances to the power car, so that different resistance characteristics of the damper 9 can be obtained at different temperatures and different speeds, so that the control module 1011 can correct the damper 9, so that the resistance of the damper 9 can be adjusted more accurately, so that the damper 9 can better adapt to the changing working environment, thereby improving its scope of application and flexibility.

[0065] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A damper, characterized in that: It includes a supporting device, a rotating device, a stator assembly, a rotor assembly and an excitation coil; The rotating device is rotatably connected to the supporting device via a first bearing; The rotor assembly is fixedly connected to the rotating device and forms a receiving chamber with an opening on one side; The stator assembly is fixedly connected to the supporting device, and is located in the accommodating chamber and is rotatably connected to the rotating device via a second bearing; The excitation coil is located in the rotor assembly and is wound around one end of the stator assembly away from the rotating device. After the excitation current is passed through the excitation coil, a plurality of pairs of N and S pole induced magnetic fields are formed in the entire circumferential range of the stator assembly.

2. The damper according to claim 1, characterized in that A through hole for the rotating device to pass through is arranged on a side opposite to the opening of the rotor assembly, and the entire circumferential edge of the through hole extends toward the stator assembly to form a boss for wrapping the rotating device.

3. The damper according to claim 1, characterized in that: The supporting device comprises a first bracket located at two sides of the rotor assembly, and a second bracket corresponding to the first bracket, and at least one limiting rod is arranged between the first bracket and the second bracket.

4. The damper according to claim 3, characterized in that: The rotating device comprises a synchronous pulley and a rotating shaft which penetrates the supporting device, the rotor assembly and the stator assembly, and the synchronous pulley is fixedly connected to one end of the rotating shaft close to the first bracket; The rotating device also includes a code disk fixedly connected to one end of the rotating shaft close to the second bracket, and a plurality of holes are arranged on the code disk, wherein the plurality of holes are spaced apart and arranged on the entire circumferential edge of the code disk.

5. A control main box, comprising the damper according to any one of claims 1 to 4, characterized in that: It also includes a shell, and a transmission device fixedly connected to a support frame in the shell, and the transmission device is connected to the damper through a first belt.

6. The control main box according to claim 5, characterized in that: The support frame includes a first support frame, and a second support frame fixedly connected between the first support frame and the bottom of the shell; The transmission device includes a turntable, a first pulley and a second pulley, the turntable is arranged on the second support frame, the second pulley and the first pulley are arranged on both sides of the second support frame corresponding to the first pulley, wherein the second pulley is connected to the turntable through a second belt, and the first pulley is connected to the damper through the first pulley.

7. A power vehicle, comprising a control main box according to any one of claims 5 to 6, characterized in that: It also includes a vehicle frame, and the main control box is fixedly connected to the vehicle frame.

8. A control system for a power vehicle, applied to the power vehicle according to claim 7, characterized in that: It includes a power supply unit, and a main control unit, a human-computer interaction module and a sampling sensor module connected to the power supply unit; The power supply unit is arranged on the control main box and is used to provide electric energy; The sampling sensor module is used to collect multiple information of the damper and send it to the main control unit; The human-computer interaction module is used to display the working information of the damper and control the working mode of the damper through the main control unit.

9. The control system of the power vehicle according to claim 8, characterized in that: The main control unit includes a control module and a storage module; the storage module is used to store data on the nonlinear relationship between resistance and current obtained in advance through experiments; The control module is used to control the working state of the damper according to the information of the sampling sensor module and through the data of the storage module.

10. The control system of the power vehicle according to claim 9, characterized in that: The sampling sensor module includes a sampling resistor, a light sensor and a temperature sensor; the sampling resistor is used to collect current information of the damper and send it to the control module; the light sensor is used to collect light information of the damper and send it to the control module; The temperature sensor is used to collect temperature information of the damper and send it to the control module.

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