Knob switch and vehicle

Abstract

The utility model provides a knob switch and a vehicle. The knob switch comprises a shell, a rotating assembly, a motor assembly and a circuit board assembly. The rotating assembly is partially located in the shell and can rotate relative to the shell in the first direction, the rotating assembly comprises a magnetic part, and the magnetic part rotates to generate magnetic field changes; the motor assembly is located in the shell and fixedly connected with the shell and the rotating assembly. The circuit board assembly and the rotating assembly are adjacently arranged in the second direction and electrically connected with the motor assembly, and the circuit board assembly detects the magnetic field change to determine the rotating angle and controls the motor assembly to rotate in the direction opposite to the rotating direction of the rotating assembly based on the rotating angle; wherein the first direction intersects with the second direction. The knob switch can realize multiple functions, can provide different operation hand feelings for a user based on different functions to improve the user experience, reduces the number of vehicle-mounted knob switches, improves the space utilization rate of a vehicle, and reduces the manufacturing and design cost.

Description

Technical Field

[0001] The present application relates to the technical field of automotive knobs, and more specifically, to a knob switch and a vehicle. Background Art

[0002] Currently, many functions inside a vehicle (such as air-conditioning temperature, air volume, and driving mode) are implemented through a knob switch structure, and usually, one function corresponds to one knob switch. As the vehicle functions increase, more knob switches are required, resulting in a higher cost. Moreover, when a user needs to operate the knob switch to control different functions during driving, there may be a situation of operation errors due to the large number of knob switches, the user experience is poor, and it will also distract the user's attention, posing a certain safety hazard. Summary of the Utility Model

[0003] The present application provides a knob switch and a vehicle, aiming to solve the problems of a large number of knob switches, resulting in a higher cost and a poor user experience.

[0004] In a first aspect, a knob switch is provided. The knob switch includes a housing, a rotating assembly, a motor assembly, and a circuit board assembly; a part of the rotating assembly is located inside the housing and can rotate relative to the housing in a first direction. The rotating assembly includes a magnetic member, and the magnetic member rotates to generate a magnetic field change; the motor assembly is located inside the housing, a part of the motor assembly is fixedly connected to the housing, and another part of the motor assembly is fixedly connected to the rotating assembly; the circuit board assembly is disposed adjacent to the rotating assembly in a second direction and is electrically connected to the motor assembly. The circuit board assembly is configured to detect the magnetic field change to determine the rotation angle and control the motor assembly to rotate in a direction opposite to the rotation direction of the rotating assembly based on the rotation angle; wherein, the first direction and the second direction intersect.

[0005] In the above technical solution, the circuit board assembly can control the motor assembly to rotate in a direction opposite to the rotation direction of the rotating assembly based on the magnetic field change, that is, control the motor assembly to apply a reaction force to the rotating assembly, so that the user in contact with the rotating assembly can perceive a certain resistance, providing a certain operating feel for the user. That is, the rotary switch can provide an immediate feedback feeling for the user, thereby improving the user experience. Moreover, the rotary switch provided in this application can implement multiple functions. When the functions corresponding to the rotary switch are different, the rotation angles determined by the circuit board assembly based on the magnetic field change are also different, that is, the reaction forces applied by the motor assembly to the rotating assembly are also different, so that the user in contact with the rotating assembly can perceive different resistances, providing different operating feels for the user based on different functions and different magnetic field changes, further improving the user experience. Secondly, the adjustment of multiple functions is achieved through one rotary switch, reducing the number of in-vehicle rotary switches, improving the space utilization rate of the vehicle, reducing the manufacturing and design costs. The user only needs to operate one rotary switch to control different functions, improving a certain level of safety.

[0006] In combination with the first aspect, in some possible implementation manners, the circuit board assembly includes a board card body, a detection module, and a control module; the board card body is disposed adjacent to the rotating assembly along the second direction; the detection module is disposed on the surface of the board card body facing the rotating assembly, and the detection module is used to detect the magnetic field change and determine the rotation angle; the control module is disposed on the surface of the board card body facing the rotating assembly, the control module is electrically connected to the detection module and the motor assembly, and the control module is used to receive the rotation angle and control the motor assembly to rotate in a direction opposite to the rotation direction of the rotating assembly based on the rotation angle.

[0007] In the above technical solution, by setting the detection module to perform real-time detection on the magnetic part, the reliability and accuracy of detecting the magnetic field change can be improved, making the rotation angle obtained by the detection module more accurate. Furthermore, it ensures the accuracy of the control module to control the rotation of the motor assembly based on this rotation angle, providing the corresponding operating feel for the user and enhancing the user experience.

[0008] In combination with the first aspect and the above implementation manners, in some possible implementation manners, the control module includes a microcontroller and a motor controller; the microcontroller is electrically connected to the detection module, and the microcontroller is used to receive the rotation angle and generate a corresponding control signal based on the rotation angle; the motor controller is electrically connected to the microcontroller and the motor assembly, and the motor controller receives the control signal and controls the motor assembly to rotate in a direction opposite to the rotation direction of the rotating assembly according to the control signal.

[0009] In the above technical solution, the speed, rotation direction, and torque of the motor assembly can be accurately controlled and adjusted through the microcontroller and the motor controller, so as to control the motor assembly to output the corresponding motor damping based on different rotation angles, provide different operation feels corresponding to different functions and different magnetic field transformations for the user, and improve the user experience. Moreover, the microcontroller can achieve fast dynamic response based on a preset software algorithm to provide an instant feedback feeling for the user, further improving the user experience.

[0010] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the circuit board assembly further includes a power management module. The power management module is electrically connected to the microcontroller and is used to provide a working voltage for the microcontroller.

[0011] In the above technical solution, the power management module is used to reduce the vehicle's power supply voltage to 5V and output it to the microcontroller to provide the corresponding working voltage for the microcontroller, thereby ensuring the working reliability of the microcontroller.

[0012] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the housing includes an outer shell, a partition board, and a base; the partition board divides the inner cavity of the outer shell into a first cavity and a second cavity along the second direction. A fixed shaft extends upward along the second direction at the center of the partition board, and a part of the rotating assembly is located in the first cavity and is movably connected to the fixed shaft; the base is located in the second cavity and is fixedly connected to the cavity side wall of the second cavity, and the circuit board assembly is fixed in the base.

[0013] In the above technical solution, the fixed shaft plays a certain limiting role on the rotating assembly, avoiding the contact and certain wear between the rotating assembly and the outer shell when the rotating assembly is offset during rotation, thereby affecting the service life of the rotating assembly and the outer shell. That is, the rotating trajectory of the rotating assembly can be limited by the fixed shaft, thereby ensuring the service life of the rotating assembly and the outer shell. The circuit board assembly is located in the second cavity and is fixedly connected to the base, and is adjacent to the rotating assembly at the same time to ensure the detection reliability of the circuit board assembly for detecting the magnetic part.

[0014] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the knob switch further includes a protection board. The protection board is cover-connected to the base to form a third cavity, and the circuit board assembly is fixed in the third cavity.

[0015] In the above technical solution, the circuit board assembly is enclosed in the third cavity through the protection board, thereby preventing water vapor and the like from entering and affecting the detection accuracy of the circuit board assembly, so as to ensure the detection reliability of the circuit board assembly.

[0016] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the rotating assembly further includes a first rotating member, a second rotating member, and a knob ring sleeve; the first rotating member is located in the first cavity and sleeved on the fixed shaft, and the magnetic member is fixedly connected to the first rotating member; the second rotating member is located in the first cavity and sleeved on the first rotating member, and the second rotating member is further fixedly connected to another part of the motor assembly; the knob ring sleeve is located outside the first cavity and sleeved on the outer edge of the second rotating member.

[0017] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a receiving groove for receiving the magnetic member is provided on a surface of the first rotating member away from the partition plate.

[0018] In the above technical solution, the magnetic member is fixed in the receiving groove of the first rotating member to improve the connection firmness between the magnetic member and the first rotating member. At the same time, the first rotating member can correspondingly drive the magnetic member to rotate, so that the magnetic member generates a corresponding magnetic field change.

[0019] Combined with the first aspect and the above implementation manners, in some possible implementation manners, one of the knob ring sleeve and the second rotating member is provided with a buckle, and the other of the two is provided with a limiting groove, and the buckle abuts against the limiting groove.

[0020] In the above technical solution, the buckle abuts against the limiting groove to realize the fixed connection between the knob ring sleeve and the second rotating member. The connection firmness of the buckle and the limiting groove is relatively high, and the matching structure is simple and the cost is low.

[0021] In a second aspect, the present application provides a vehicle, including a vehicle body, an in-vehicle display screen, and the knob switch according to any optional manner of the first aspect. The in-vehicle display screen is installed in the vehicle body, and the knob switch is fixed in the vehicle body and electrically connected to the in-vehicle display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic cross-sectional structure diagram of a knob switch provided by an embodiment of the present application;

[0023] Figure 2 is a schematic module structure diagram of a circuit board assembly provided by an embodiment of the present application;

[0024] Figure 3 is another schematic module structure diagram of a circuit board assembly provided by an embodiment of the present application;

[0025] Figure 4 is a schematic module structure diagram of another circuit board assembly provided by an embodiment of the present application;

[0026] Figure 5 is a schematic module structure diagram of yet another circuit board assembly provided by an embodiment of the present application;

[0027] Figure 6 is a schematic exploded sectional view of a knob switch provided by an embodiment of the present application;

[0028] Figure 7 is another schematic exploded sectional view of a knob switch provided by an embodiment of the present application;

[0029] Figure 8 is another schematic sectional view of a knob switch provided by an embodiment of the present application;

[0030] Figure 9 is a schematic exploded view of a knob switch provided by an embodiment of the present application;

[0031] Figure 10 is another schematic exploded sectional view of a knob switch provided by an embodiment of the present application;

[0032] Figure 11 is another schematic exploded view of a knob switch provided by an embodiment of the present application;

[0033] Figure 12 is yet another schematic exploded sectional view of a knob switch provided by an embodiment of the present application;

[0034] Figure 13 is another schematic sectional view of a knob switch provided by an embodiment of the present application;

[0035] Figure 14 is yet another schematic sectional view of a knob switch provided by an embodiment of the present application;

[0036] Figure 15 is a schematic top view of a knob switch provided by an embodiment of the present application;

[0037] Figure 16 is a schematic overall view of a knob switch provided by an embodiment of the present application;

[0038] Figure 17 is a schematic overall exploded view of a knob switch provided by an embodiment of the present application.

[0039] Among them, the reference numerals in the figures:

[0040] 1. Housing; 11. Outer shell; 11A. First cavity; 11B. Second cavity; 11C. First through groove; 111. First buckle; 12. Partition; 121. Fixed shaft; 1211. Fifth buckle; 13. Base; 13A. Third cavity; 2. Rotating assembly; 21. Magnetic part; 22. First rotating part; 22A. Receiving groove; 22B. Second through groove; 221. Limiting rib; 23. Second rotating part; 23A. First limiting groove; 23B. Second limiting groove; 231. Third buckle; 232. Sixth buckle; 24. Knob ring sleeve; 241. Second buckle; 3. Motor assembly; 31. Rotating part; 32. Fixed part; 321. Welding wire; 4. Circuit board assembly; 41. Board card body; 42. Detection module; 43. Control module; 431. Microcontroller; 432. Motor controller; 433. Motor driver; 44. Power management module; 5. Protection board; 6. LIN chip; 7. First fastener; 8. Second fastener; 9. Button assembly; 91. Button body; 92. Inner shell; 921. Fourth buckle; 93. Fixed seat; 93A. Fourth through groove; 94. First decorative part; 95. Second decorative part; AA. First direction; BB. Second direction; VDD. Power supply voltage; GND. Ground terminal. Detailed implementation manners

[0041] The technical solutions in the present application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" in the text is only a description of the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two.

[0042] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0043] With the rapid development of vehicles, the degree of intelligence of the whole vehicle is getting higher and higher, and correspondingly, the functions integrated inside it are also increasing. To facilitate users to control and adjust these functions in real time, a rotary switch is usually provided in the vehicle, and usually one rotary switch corresponds to one function. Users can directly control and adjust these functions through the rotary switch. For example, assuming that you want to adjust the temperature of the air conditioner, you can operate the corresponding air conditioner rotary switch to rotate a certain angle to achieve temperature adjustment. Another example, assuming that you want to switch the driving mode, you can operate the corresponding driving mode rotary switch to rotate a certain angle to achieve the switching of the driving mode. To improve the user experience, the operating feel of the rotary switches corresponding to different functions is also different. For example, the operating force of the rotary switches corresponding to functions such as volume, air volume, and temperature is small, and the corresponding operating feel is weak to achieve rapid adjustment of the volume size, air volume size, and temperature level. The operating force of the rotary switch corresponding to the driving mode function is large, and the corresponding operating feel is strong to ensure the stability of switching the driving mode.

[0044] However, as the functions integrated in the vehicle increase, the corresponding number of rotary switches required also increases. In this way, the number of in-vehicle rotary switches is increased, the space utilization rate of the vehicle is reduced, and the manufacturing and design costs are increased. And when the user needs to operate the rotary switch to control different functions during driving, there may be a situation of operation errors due to the large number of rotary switches, the user experience is poor, and at the same time, it will also distract the user's attention, posing a certain safety hazard. Moreover, the rotary switches in the related art usually adopt a mechanical spring structure, and the elastic force during its rotation is a set fixed value, and different operating feels cannot be achieved.

[0045] Therefore, the present application provides a rotary switch and a vehicle. The rotary switch can implement multiple functions and can provide different operating feels for users based on different functions to improve the user experience. At the same time, the number of in-vehicle rotary switches is reduced, the space utilization rate of the vehicle is increased, and thus the manufacturing and design costs are reduced, and the safety is also improved to a certain extent.

[0046] The following will exemplarily introduce the rotary switch and the vehicle provided by the present application with reference to the accompanying drawings.

[0047] An embodiment of the present application provides a vehicle, including a vehicle body, an in-vehicle display screen, and a rotary switch. The in-vehicle display screen is installed in the vehicle body, and the rotary switch is fixed in the vehicle body and electrically connected to the in-vehicle display screen. Among them, the in-vehicle display screen is used for information display (such as speed, fuel quantity, cruising range, warning prompts, etc.), providing entertainment functions (such as radio, Bluetooth music, media playback, etc.), providing navigation functions, communication functions, etc.

[0048] The rotary switch integrates multiple functions, that is, through a single rotary switch, functions such as air conditioner temperature adjustment, air conditioner air volume adjustment, audio volume adjustment, driving mode selection, and gear shifting can be realized. At the same time, to facilitate users to switch the functions corresponding to the rotary switch, function buttons corresponding to functions such as air conditioner temperature, air conditioner air volume, audio volume, driving mode, and gear shifting are also integrated on the in-vehicle display screen. Users can select the corresponding function button on the in-vehicle display screen to switch the function corresponding to the rotary switch.

[0049] Exemplarily, the vehicle further includes a Central Electronic Module (CEM), which is electrically connected to the in-vehicle display screen and the rotary switch. In this example, assuming that the user wants to adjust the air conditioner temperature through the rotary switch, the user can click the function button corresponding to the air conditioner temperature on the in-vehicle display screen. At this time, the in-vehicle display screen will send a function signal corresponding to the air conditioner temperature to the CEM, and transmit this function signal to the rotary switch, so that the rotary switch can switch the corresponding function to the air conditioner temperature based on this function signal. The user rotates the rotary switch to correspondingly increase or decrease the air conditioner temperature. At the same time, the rotary switch will also output a corresponding torque based on the received function signal to provide the user with the operating feel corresponding to the air conditioner temperature and improve the user experience. Assuming that the user wants to adjust the driving mode through the rotary switch, the user can click the function button corresponding to the driving mode on the in-vehicle display screen. At this time, the in-vehicle display screen will send a function signal corresponding to the driving mode to the CEM, and transmit this function signal to the rotary switch, so that the rotary switch can switch the corresponding function to the driving mode based on this function signal. The user rotates the rotary switch to correspondingly switch the driving mode. At the same time, the rotary switch will also output a corresponding torque based on the received function signal to provide the user with the operating feel corresponding to switching the driving mode and improve the user experience.

[0050] Here, it is worth noting that the CEM is also electrically connected to the air conditioning system, Electronic Stability Program (ESP), Electronic Control Unit (ECU), and other systems or functional modules in the vehicle. The CEM not only sends corresponding function signals to the rotary switch but also receives electrical signals from the rotary switch. The electrical signals from the rotary switch refer to the actions that need to be executed. For example, taking the function corresponding to the rotary switch as the air conditioner temperature, when the rotary switch rotates 2 gears, the electrical signal from the rotary switch at this time refers to the need to increase the air conditioner temperature by 2 °C (degrees Celsius). The CEM will control the air conditioning system to increase the corresponding temperature based on this electrical signal. When the function corresponding to the rotary switch is other functions, the operation process is the same as that of the air conditioner temperature function, and will not be elaborated here.

[0051] Optionally, the function signals may include the rotation angle and torque, and the function signals corresponding to different function buttons are different, that is, the gears, rotation angles, and torques corresponding to different function buttons are all different. For example, the torque magnitude in the function signals corresponding to the air conditioner temperature, air conditioner air volume, and audio volume can be set to 1.6 N.cm (Newton - centimeter), and the operation angle can be set to 2° / gear. Then, the gears corresponding to the air conditioner temperature, air conditioner air volume, and audio volume are 180 gears. The operation force output by the rotary switch is relatively small, so the user's operation feel is weak, realizing the quick adjustment of the audio volume, air conditioner air volume, and air conditioner temperature. For another example, the torque magnitude in the function signals corresponding to the driving mode can be set to 9 N.cm, and the operation angle can be set to 18° / gear. Then, the gear corresponding to the driving mode is 20 gears. The operation force output by the rotary switch is relatively large, so the user's operation feel is strong to ensure the stability when switching the driving mode.

[0052] Here, it is worth noting that the torque, operation angle, and gear corresponding to different functions can be pre - integrated in the software connected to the vehicle display screen. When the user selects the function button corresponding to different functions on the vehicle display screen, the function signals corresponding to this function in the software can be sent to the rotary switch, so that the rotary switch outputs the corresponding operation angle and torque based on this function signal. The torque magnitude, operation angle, and gear corresponding to different functions can be set according to actual needs. Among them, the setting range of the rotary knob can be between 2 and 360 gears. Regarding this, the present application does not make specific restrictions.

[0053] Optionally, the function signal can be an electrical signal representing the corresponding function. In the execution unit of the rotary switch, the operation angle, torque, and gear and other related parameters corresponding to different functions can be integrated. After receiving the function signal representing the corresponding function, the rotary switch will retrieve and output the related parameters such as the operation angle, torque, and gear corresponding to this function to provide the user with the operation feel of the corresponding function. The function signal can be specifically set according to actual needs. Regarding this, the present application does not make specific restrictions.

[0054] This application can realize the adjustment of multiple functions through one rotary switch. In this way, after integrating the multi - function adjustment, the number of vehicle rotary switches is reduced, the space utilization rate of the vehicle is improved, the manufacturing and design costs are reduced, and the user only needs to operate one rotary switch to control different functions, improving a certain degree of safety. Moreover, the rotary switch can output different torques based on different functions to provide different operation feels for the user, thereby improving the user experience effect.

[0055] In one example, such as Figure 1As shown in the figure, the rotary switch provided by the present application may include a housing 1, a rotating assembly 2, a motor assembly 3, and a circuit board assembly 4. A part of the rotating assembly 2 is located inside the housing 1 and can rotate relative to the housing 1 along the first direction AA. The motor assembly 3 is located inside the housing 1. One part of the motor assembly 3 is fixedly connected to the housing 1, and the other part of the motor assembly 3 is fixedly connected to the rotating assembly 2. The circuit board assembly 4 is arranged adjacent to the rotating assembly 2 along the second direction BB and is electrically connected to the motor assembly 3. Among them, the rotating assembly 2 includes a magnetic member 21. When the magnetic member 21 rotates, a magnetic field change will occur. The circuit board assembly 4 is used to detect the magnetic field change to determine the rotation angle, and based on the rotation angle, control the motor assembly 3 to rotate in the direction opposite to the rotation direction of the rotating assembly 2, so as to output an operation feel corresponding to the rotation angle, thereby improving the user experience effect. Among them, the first direction AA and the second direction BB intersect. That is, when the first direction AA is the horizontal direction, the second direction BB is the vertical direction intersecting with it.

[0056] In this example, when the user rotates the rotating assembly 2, the magnetic member 21 will generate a magnetic field change during rotation. The circuit board assembly 4 can detect the magnetic field change and determine the rotation angle based on the magnetic field change. It should be noted that the rotation angle here refers to the rotation angle of the motor assembly 3. The circuit board assembly 4 controls the motor assembly 3 to rotate in the direction opposite to the rotation direction of the rotating assembly 2 based on this rotation angle. At this time, since the other part of the motor assembly 3 is fixedly connected to the rotating assembly 2, the circuit board assembly 4 controls the motor assembly 3 to rotate in the direction opposite to the rotation direction of the rotating assembly 2, that is, controls the motor assembly 3 to apply a reaction force to the rotating assembly 2, so that the user contacting the rotating assembly 2 can perceive a certain resistance, providing a certain operation feel for the user, that is, the rotary switch can provide an immediate feedback feeling for the user, thereby improving the user experience. Moreover, the rotary switch provided by the present application can implement multiple functions. When the functions corresponding to the rotary switch are different, the rotation angles determined by the circuit board assembly 4 based on the magnetic field change are also different, that is, the reaction forces applied by the circuit board assembly 4 to the rotating assembly 2 are also different, so that the user contacting the rotating assembly 2 can perceive different resistances, providing different operation feels for the user based on different functions and different magnetic field changes, further improving the user experience. Secondly, the adjustment of multiple functions is realized through one rotary switch, reducing the number of in-vehicle rotary switches, improving the space utilization rate of the vehicle, reducing the manufacturing and design costs. The user only needs to operate one rotary switch to control different functions, improving a certain degree of safety.

[0057] In order to enable the circuit board assembly 4 to detect the magnetic field change in real time and determine the corresponding rotation angle based on the magnetic field change, in one example, such as Figure 2As shown in the figure, the circuit board assembly 4 includes a board body 41, a detection module 42, and a control module 43. The board body 41 is arranged adjacent to the rotating assembly 2 along the second direction BB. The detection module 42 is arranged on the surface of the board body 41 facing the rotating assembly 2, and the control module 43 is arranged on the surface of the board body 41 facing the rotating assembly 2. The control module 43 is electrically connected to the detection module 42 and the motor assembly 3. Among them, the detection module 42 is used to detect the magnetic field change by the magnetic part 21 and determine the rotation angle, and send the rotation angle to the control module 43. The control module 43 receives the rotation angle and controls the motor assembly 3 to rotate in the direction opposite to the rotation direction of the rotating assembly 2 based on the rotation angle, so as to provide the corresponding operation feel for the user.

[0058] In this example, the detection module 42 can detect the magnetic part 21 in real time. When it detects that there is a magnetic field change in the magnetic part 21, it can determine the corresponding rotation angle based on the detected magnetic field change and send the rotation angle to the control module 43, so that the control module 43 can control the motor assembly 3 to output the corresponding motor damping based on this rotation angle to achieve the operation feel corresponding to this magnetic field change. In this way, by setting the detection module 42 to detect the magnetic part 21 in real time, the reliability and accuracy of detecting the magnetic field change can be improved, so that the rotation angle obtained by the detection module 42 is more accurate, and then the accuracy of the control module 43 controlling the rotation of the motor assembly 3 based on this rotation angle can be ensured, so as to provide the corresponding operation feel for the user and enhance the user experience.

[0059] Among them, the board body 41 is used to carry and integrate the detection module 42, the control module 43 and other devices or circuit modules to form a printed circuit board assembly (PCBA) as a whole.

[0060] Optionally, the detection module 42 can be a Hall sensor. The Hall sensor can detect the magnetic field without direct contact with the object to be measured, that is, the Hall sensor can monitor the magnetic field change of the magnetic part 21 without direct contact with the magnetic part 21, which reduces a certain amount of wear and then extends the service life of the Hall sensor and the magnetic part 21. Secondly, the Hall sensor can detect weak magnetic field changes. That is, when the rotation angle of the rotating assembly 21 is small, the magnetic field change generated by the rotation of the magnetic part 21 is relatively weak. At this time, the Hall sensor can still detect this weak magnetic field change, and the detection reliability is high. Moreover, the Hall sensor is small in size and light in weight and is easy to integrate.

[0061] In one example, such as Figure 3As shown, the control module 43 may include a microcontroller 431 and a motor controller 432. The microcontroller 431 is electrically connected to the detection module 42. The microcontroller 431 is configured to receive the rotation angle and generate a corresponding control signal based on the rotation angle. The motor controller 432 is electrically connected to the microcontroller 431 and the motor assembly 3. The motor controller 432 receives the control signal and controls the motor assembly 3 to rotate in a direction opposite to the rotation direction of the rotating assembly 2 according to the control signal.

[0062] In this example, corresponding software algorithms may be integrated in the microcontroller 431. After receiving the rotation angle from the detection module 42, the microcontroller 431 obtains the control signal corresponding to the rotation angle based on the preset software algorithm and sends the control signal to the motor controller 432, so that the motor controller 432 can adjust the rotation speed, steering and torque of the motor assembly 3 based on the control signal, so that the motor assembly 3 outputs a corresponding motor damping, that is, the motor controller 432 can control the motor assembly 3 to rotate in a direction opposite to the rotation direction of the rotating assembly 2, so that the user contacting the rotating assembly 2 can perceive a certain resistance and provide the corresponding operation feel for the user. And when the rotation angles received by the microcontroller 431 are different, the microcontroller 431 can obtain the control signals corresponding to different rotation angles based on the preset software algorithm and send them to the motor controller 432, so that the motor controller 432 can control different rotation speeds, steering and torque of the motor assembly 3 based on the control signal, so that the motor assembly 3 outputs different motor damping, and provide different operation feels corresponding to different functions and different magnetic field transformations for the user, further improving the user experience.

[0063] In this way, the rotation speed, steering and torque of the motor assembly 3 can be accurately controlled and adjusted by the microcontroller 431 and the motor controller 432, so as to control the motor assembly 3 to output the corresponding motor damping based on different rotation angles, provide different operation feels corresponding to different functions and different magnetic field transformations for the user, and improve the user experience. Moreover, the microcontroller 431 can achieve fast dynamic response based on the preset software algorithm to provide an instant feedback feeling for the user, further improving the user experience.

[0064] Optionally, the microcontroller 431 may be a Microcontroller Unit (MCU). The MCU has fast interrupt response and processing capabilities and is suitable for control systems that require instant feedback, such as data processing of the detection module 42 and control of the motor assembly 3 in this application.

[0065] In one example, as Figure 4As shown, the control module 43 may further include a motor driver 433. The motor driver 433 is connected to the motor controller 432 and the motor assembly 3, and the motor driver 433 is connected to the power supply voltage VDD. In this example, the motor controller 432 acts as the "brain" to receive control signals (such as speed, direction instructions, etc.) from the microcontroller 431, and calculates the voltage and current waveforms that should be applied to the motor assembly 3 based on these control signals. The motor driver 433 acts as the "executor" to receive instructions from the motor controller 432 and convert them into actual power signals to drive the motor assembly 3, so as to correspondingly change the rotation speed, rotation direction or torque of the motor assembly 3, thereby achieving different operating feels.

[0066] Exemplarily, the motor driver 433 may internally include electronic devices, such as Insulated Gate Bipolar Transistor (IGBT) or Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), etc. These electronic devices can achieve fast switching based on the instructions of the motor controller 432 to correspondingly adjust the magnitude and direction of the current flowing to the motor assembly 3, thereby achieving the adjustment of the rotation speed, rotation direction and torque of the motor assembly 3. At the same time, the motor driver 433 also plays a role in electrical isolation to avoid the problem that the motor controller 432 is damaged by high voltage spikes such as the back electromotive force of the motor assembly 3, and at the same time can also prevent the motor assembly 3 from being interfered by the noise in the motor controller 432 to ensure the working reliability of the motor controller 432 and the motor driver 433.

[0067] Since the power supply voltage VDD of the vehicle is usually 12V (volt), and the working voltage of the microcontroller 431 is 5V, therefore, in one example, as Figure 5 shown, the circuit board assembly 4 further includes a power management module 44. The power management module 44 is electrically connected to the microcontroller 431, the battery BAT and the ground terminal GND. The power management module 44 is used to connect to the power supply voltage VDD of the vehicle, reduce the power supply voltage VDD to 5V and output it to the microcontroller 431 to provide the corresponding working voltage for the microcontroller 431, thereby ensuring the working reliability of the microcontroller 431.

[0068] Optionally, the power management module 44 can be a DC-DC (direct current - direct current) converter. For example, it can be a buck converter. The input terminal of the buck converter is connected to the vehicle power supply voltage VDD, and the output terminal of the buck converter is connected to the power supply terminal of the microcontroller 431. The buck converter can convert a relatively high DC voltage (i.e., the power supply voltage VDD) into a relatively low DC voltage (i.e., the operating voltage of 5V) and output it to the power supply terminal of the microcontroller 431, so that the microcontroller 431 can operate normally.

[0069] In one example, as Figure 5 shown, the vehicle further includes a Local Interconnect Network (LIN) chip. The LIN chip 6 is electrically connected to the microcontroller 431. The microcontroller 431 can receive data from other sensors or other devices in the vehicle and send corresponding control instructions to these devices, such as door lock control, window lifting and lowering, lighting adjustment, etc.

[0070] In summary, the detection module 42 provided in this application can perform real-time detection on the magnetic part 21. When it detects a magnetic field change in the magnetic part 21, it can determine the corresponding rotation angle based on the detected magnetic field change and send the rotation angle to the microcontroller 431, so that the microcontroller 431 can output a corresponding control signal to the motor controller 432 based on this rotation angle. The motor controller 432 can receive the control signal from the microcontroller 431 and calculate the voltage and current waveforms that should be applied to the motor assembly 3 according to these control signals. The motor driver 433 receives the instruction from the motor controller 432 and converts it into an actual power signal to drive the motor assembly 3, so as to correspondingly change the speed, rotation direction or torque of the motor assembly 3, thereby controlling the motor assembly 3 to output the corresponding motor damping to achieve the operating feel corresponding to this magnetic field change, that is, the knob switch can provide an immediate feedback feeling for the user based on the magnetic field change, thus improving the user experience. Moreover, the knob switch provided in this application can implement multiple functions. When the functions corresponding to the knob switch are different, the rotation angles determined by the detection module 42 based on the magnetic field change are also different, that is, the reaction forces applied by the motor assembly 3 to the rotating assembly 2 are also different, so that the user touching the rotating assembly 2 can perceive different resistances, so as to provide different operating feels for the user based on different functions and different magnetic field changes, further improving the user experience. Secondly, adjusting multiple functions through one knob switch reduces the number of in-vehicle knob switches, improves the space utilization rate of the vehicle, reduces the manufacturing and design costs. The user only needs to operate one knob switch to control different functions, improving a certain level of safety.

[0071] In one example, please refer to Figure 6 andFigure 7 As shown, the housing 1 includes an outer shell 11, a partition 12 and a base 13. The partition 12 divides the inner cavity of the outer shell 11 along the second direction BB into a first cavity 11A and a second cavity 11B. A fixed shaft 121 extends upward along the second direction BB at the center of the partition 12. Part of the rotating assembly 2 is located in the first cavity 11A and is movably connected to the fixed shaft 121. The base 13 is located in the second cavity 11B and is fixedly connected to the cavity side wall of the second cavity 11B. The circuit board assembly 4 is fixed in the base 13.

[0072] In this example, the partition 12 divides the inner cavity of the outer shell 11 into a first cavity 11A and a second cavity 11B. The rotating assembly 2 and the motor assembly 3 are located in the first cavity 11A. Among them, part of the rotating assembly 2 is movably connected to the fixed shaft 121. In this way, the fixed shaft 121 plays a certain limiting role on the rotating assembly 2, avoiding certain wear when the rotating assembly 2 contacts the outer shell 11 after offset during rotation, and thus affecting the service life of the rotating assembly 2 and the outer shell 11. That is, the rotating trajectory of the rotating assembly 2 can be limited by the fixed shaft 121, thereby ensuring the service life of the rotating assembly 2 and the outer shell 11. The circuit board assembly 4 is located in the second cavity 11B and is fixedly connected to the base 13, and is arranged adjacent to the rotating assembly 2 to ensure the detection reliability of the circuit board assembly 4 for detecting the magnetic part 21.

[0073] Optionally, the partition 12 and the outer shell 11 can be an integrally formed one-piece structure to reduce the manufacturing process. The partition 12 and the outer shell 11 can also be independent structures to facilitate adjusting the position of the partition 12 in the outer shell 11 to correspondingly adjust the cavity volumes of the first cavity 11A and the second cavity 11B, so as to adapt to different motor assemblies 3 and circuit board assemblies 4. In this regard, the present application does not make specific limitations.

[0074] Optionally, the circuit board assembly 4 and the base 13 can be positioned and fixed by means of a shaft hole to ensure the connection firmness between the circuit board assembly 4 and the base 13, thereby ensuring the detection reliability of the circuit board assembly 4 for the magnetic field change of the magnetic part 21.

[0075] In order to prevent water vapor and the like from entering the second cavity 11B and thus affecting the detection accuracy of the circuit board assembly 4, in one example, please refer to Figure 8 and Figure 9As shown, the rotary switch further includes a protection board 5. The protection board 5 is hermetically connected to the base 13 to form a third cavity 13A. The circuit board assembly 4 is fixed within the third cavity 13A. The protection board 5 is used to enclose the circuit board assembly 4 within the third cavity 13A, thereby preventing moisture and the like from entering and affecting the detection accuracy of the circuit board assembly 4, and ensuring the detection reliability of the circuit board assembly 4. Further, interference ribs are provided on the cavity side wall of the second cavity 11B of the outer shell 11. After the base 13 and the outer shell 11 are assembled and fixed, the interference ribs on the outer shell 11 will be in interference fit with the protection board 5 to further improve the sealing and waterproof effects.

[0076] Optionally, the protection board 5 can be made of waterproof rubber or other waterproof materials. In this regard, the present application does not make specific limitations.

[0077] Optionally, in order to improve the connection firmness between the base 13 and the outer shell 11, please refer to Figure 8 and Figure 9 As shown, a plurality of first through slots 11C are provided on the cavity side wall of the second cavity 11B. A first buckle 111 corresponding to each of the plurality of first through slots 11C is provided outside the side wall of the base 13. The plurality of first buckles 111 are respectively snapped into the plurality of first through slots 11C to achieve the fixed connection between the base 13 and the outer shell 11. The connection firmness of the connection between the first buckle 111 and the first through slot 11C is relatively high, and the matching structure is simple and the cost is low.

[0078] Optionally, please refer to Figures 7 to 9 As shown, the rotary switch may further include a plurality of first fasteners 7. Corresponding through holes are provided on the base 13, the circuit board assembly 4, the protection board 5, the partition 12, and the motor assembly 3 respectively. The plurality of first fasteners 7 respectively pass through the base 13, the circuit board assembly 4, the protection board 5, the partition 12, and the motor assembly 3 in sequence to achieve the fixed connection between the base 13, the circuit board assembly 4, the protection board 5, the partition 12, and the motor assembly 3. At the same time, the plurality of first fasteners can also play a role in limiting the positional relationship between the base 13, the circuit board assembly 4, the protection board 5, and the partition 12.

[0079] Please refer to Figure 7 and Figure 8 As shown, the motor assembly 3 may include a connected rotating part 31 and a fixed part 32. The rotating part 31 is fixedly connected to the rotating assembly 2, and the fixed part 32 is fixedly connected to the partition 12 and the base 13 through a plurality of first fasteners 7. In this example, as Figure 9 shown, a plurality of welding wires 321 are provided on the fixed part 32 of the motor assembly 3. The motor assembly 3 is electrically connected to the circuit board assembly 4 through the plurality of welding wires 321, so that the circuit board assembly 4 can control the motor assembly 3 to output a corresponding motor damping via the welding wires 321.

[0080] Optionally, the first fastener 7 may be a bolt, a screw, or other fasteners capable of achieving fastening. The present application does not make specific limitations thereto.

[0081] In one example, please refer to Figure 10 and Figure 11 As shown, the rotating assembly 2 further includes a first rotating member 22, a second rotating member 23, and a knob ring sleeve 24. The first rotating member 22 is located in the first cavity 11A and sleeved on the fixed shaft 121. The magnetic member 21 is fixedly connected to the first rotating member 22. The second rotating member 23 is located in the first cavity 11A and sleeved on the first rotating member 22. The second rotating member 23 is also fixedly connected to another part of the motor assembly 3 (i.e., the rotating part 31 of the motor assembly 3). The knob ring sleeve 24 is located outside the first cavity 11A and sleeved on the outer edge of the second rotating member 23.

[0082] In this example, the user can directly contact the knob ring sleeve 24 to rotate the rotating assembly 2. After the knob ring sleeve 24 rotates, it drives the second rotating member 23 fixedly connected thereto to rotate. After the second rotating member 23 rotates, it drives the first rotating member 22 to rotate. At this time, since the magnetic member 21 is fixedly connected to the first rotating member 22, the magnetic member 21 will rotate with the first rotating member 22, thereby generating a certain magnetic field change, so that the circuit board assembly 4 detects the magnetic field change and controls the motor assembly 3 to rotate in the direction opposite to the rotating direction of the rotating assembly 2 based on the magnetic field change, so as to provide a certain operating feel for the user.

[0083] For the convenience of assembly, optionally, please refer to Figure 10 and Figure 11 As shown, the second rotating member 23 is integrally stepped. Among them, the outer edge of the second rotating member 23 is located outside the housing 11, and the knob ring sleeve 24 is sleeved on the outer edge for the convenience of user operation. The rest of the second rotating member 23 is located inside the housing 11.

[0084] To improve the connection firmness between the knob ring sleeve 24 and the second rotating member 23, thereby ensuring the reliability of the second rotating member 23 rotating with the knob ring sleeve 24, optionally, one of the knob ring sleeve 24 and the second rotating member 23 is provided with a buckle, and the other is provided with a limiting groove. The buckle abuts against the limiting groove. Exemplarily, as Figure 11 shown, a plurality of second buckles 241 may be provided on the inner wall of the knob ring sleeve 24, and a plurality of first limiting grooves 23A are provided on the outer edge of the second rotating member 23. The plurality of second buckles 241 respectively abut against the plurality of first limiting grooves 23A to achieve the fixed connection between the knob ring sleeve 24 and the second rotating member 23. The connection firmness between the second buckle 241 and the first limiting groove 23A is relatively high, and the matching structure is simple and the cost is low.

[0085] To improve the connection firmness between the second rotating member 23 and the first rotating member 22, thereby ensuring the reliability of the rotation of the first rotating member 22 following the second rotating member 23. Optionally, one of the first rotating member 22 and the second rotating member 23 is provided with a buckle, and the other is provided with a limiting groove. The buckle abuts against the second limiting groove. Exemplarily, as Figure 12 shown, on the side of the second rotating member 23 facing the first rotating member 22, a sleeve structure is provided. This sleeve structure can be sleeved on the first rotating member 22. On the side wall of the sleeve structure, a plurality of second limiting grooves 23B and a plurality of third buckles 231 are provided. On the side wall of the first rotating member 22, a plurality of limiting ribs 221 and a plurality of second through grooves 22B corresponding to the plurality of second limiting grooves 23B and the plurality of third buckles 231 are provided. The plurality of second limiting grooves 23B respectively abut against the plurality of second limiting grooves 23B one by one, and the plurality of third buckles 231 respectively abut against the plurality of second through grooves 22B one by one. In this way, the connection firmness between the second rotating member 23 and the first rotating member 22 is achieved through the one-by-one abutment of the plurality of third buckles 231 and the plurality of second through grooves 22B. And by the abutment of the second limiting groove 23B and the plurality of second limiting grooves 23B, the connection firmness between the second rotating member 23 and the first rotating member 22 is further improved. At the same time, the positional relationship between the second rotating member 23 and the first rotating member 22 is limited to ensure the rotation reliability of the second rotating member 23 and the first rotating member 22.

[0086] Optionally, please refer to Figure 10 and Figure 17 shown, the rotary switch further includes a plurality of second fasteners 8. At the corresponding positions of the rotating part 31 in the motor assembly 3 and the second rotating member 23, a plurality of through holes are provided. The plurality of second fasteners 8 respectively pass through the plurality of through holes to achieve the fixed connection between the motor assembly 3 and the second rotating member 23. At the same time, the plurality of second fasteners 8 can also play a role in limiting the positional relationship between the rotating part 31 and the second rotating member 23. The second fastener 8 can be a bolt, a screw or other fasteners that can achieve fastening. In this regard, the present application does not make specific limitations.

[0087] To improve the connection firmness between the magnetic member 21 and the first rotating member 22. Optionally, as Figure 11 shown, on one surface of the first rotating member 22, a receiving groove 22A for receiving the magnetic member 21 is provided. At this time, the one surface can refer to the surface of the first rotating member 22 away from the partition 12 (not shown in the figure). The magnetic member 21 is fixed in the receiving groove 22A of the first rotating member 22 to improve the connection firmness between the magnetic member 21 and the first rotating member 22. At the same time, the first rotating member 22 can correspondingly drive the magnetic member 21 to rotate, so that the magnetic member 21 generates a corresponding magnetic field change.

[0088] Optionally, for a better user experience in terms of feel, a plurality of concavo-convex structures arranged in an array may be provided on the outer wall surface of the knob ring 24.

[0089] In one example, please refer to Figures 13 to 17 As shown, the knob switch further includes a button assembly 9. The button assembly 9 includes a button body 91, an inner shell 92, and a fixing base 93. An accommodation cavity is formed in the inner shell 92. At least one fourth buckle 921 is provided on the cavity side wall of the accommodation cavity. At least one third through slot 91A is provided on the button body 91. The plurality of fourth buckles 921 are respectively in one-to-one correspondence and abut against the plurality of third through slots 91A to limit and fix the button body 91 in the accommodation cavity of the inner shell 92, so as to ensure the connection firmness between the button body 91 and the inner shell 92.

[0090] The fixing base 93 is fixedly connected to the inner shell 92 and the fixing shaft 121. That is, through the fixing base 93, the connection firmness between the inner shell 92 and the button body 91 and the partition 12 can be realized. Optionally, one of the fixing base 93 and the inner shell 92 is provided with a buckle, and the other is provided with a limiting slot. The buckle is engaged with the limiting slot to realize the fixed connection and limitation between the fixing base 93 and the inner shell 92. Details thereof will not be described herein.

[0091] Optionally, as Figure 13 shown, a shaft structure is provided on one side of the fixing base 93 facing the fixing shaft 121. A fourth through slot 93A is provided on the side wall of the shaft structure. A fifth buckle 1211 is provided on the inner wall of the shaft body of the fixing shaft 121. The fifth buckle 1211 abuts against the fourth through slot 93A to realize the fixed connection between the fixing base 93 and the fixing shaft 121.

[0092] Optionally, please refer to Figure 12 and Figure 14 shown, a sixth buckle 232 is further provided on the second rotating member 23. A through slot (not shown in the figure) is provided on the part of the fixing base 93 in contact with the second rotating member 23. The sixth buckle 232 abuts against the through slot to realize the fixed connection between the second rotating member 23 and the fixing base 93.

[0093] Optionally, the specific number of the above-mentioned first through slot 11C, first buckle 111, first limiting slot 23A, second through slot 22B, second buckle 241, second limiting slot 23B, third buckle 231, third through slot 91A, fourth buckle 921, fourth through slot 93A, fifth buckle 1211, and sixth buckle 232 can be set according to actual needs. For example, assuming that it is desired to improve the connection firmness between the buckle and the limiting slot / through slot, a plurality of buckles and corresponding plurality of limiting slots / through slots can be provided. Assuming that it is desired to save manufacturing costs, a small number of buckles and corresponding limiting slots / through slots can be provided. The present application does not make specific limitations thereto.

[0094] In one example, please refer to Figures 15 to 17 As shown, the key assembly 9 further includes a first decorative member 94 and a second decorative member 95 sleeved in sequence. Among them, the first decorative member 94 is sleeved on the outer edge of the key body 91, and the second decorative member 95 is located between the first decorative member 94 and the knob ring sleeve 24. The gaps between the key body 91 and the knob ring sleeve 24 can be blocked by the first decorative member 94 and the second decorative member 95, so as to prevent dust and the like from entering the gaps between the key body 91 and the knob ring sleeve 24, and prevent the dust from blocking the rotation of the rotating assembly 2 after a long time, thereby improving the rotation reliability of the rotating assembly 2.

[0095] It should be noted that in the present application, a snap connection between a snap and a limiting groove / slot can be adopted between each mutually fixedly connected structure to achieve fixed connection, so as to improve the connection firmness between two mutually connected structures, thereby improving the overall reliability of the knob switch. Other connection methods can also be adopted. In this regard, the present application does not make specific limitations.

[0096] Through the description of the above embodiments, those skilled in the art can understand that for the convenience and simplicity of description, only the above-mentioned division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0097] In the embodiments provided in the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in electrical, mechanical or other forms.

[0098] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotary switch, applied to a vehicle, characterized in that, The rotary switch includes: a housing (1); a rotating assembly (2), a part of the rotating assembly (2) is located inside the housing (1) and can rotate relative to the housing (1) in a first direction. The rotating assembly (2) includes a magnetic member (21), and the magnetic member (21) rotates to generate a magnetic field change; a motor assembly (3), the motor assembly (3) is located inside the housing (1), a part of the motor assembly (3) is fixedly connected to the housing (1), and another part of the motor assembly (3) is fixedly connected to the rotating assembly (2); and a circuit board assembly (4), the circuit board assembly (4) is arranged adjacent to the rotating assembly (2) in a second direction and is electrically connected to the motor assembly (3). The circuit board assembly (4) is used to detect the magnetic field change to determine the rotation angle, and based on the rotation angle, control the motor assembly (3) to rotate in a direction opposite to the rotation direction of the rotating assembly (2); wherein, the first direction and the second direction intersect.

2. The rotary switch according to claim 1, wherein, The circuit board assembly (4) includes: a board card body (41), the board card body (41) is arranged adjacent to the rotating assembly (2) in the second direction; a detection module (42), the detection module (42) is arranged on the surface of the board card body (41) facing the rotating assembly (2), and the detection module (42) is used to detect the magnetic field change and determine the rotation angle; and a control module (43), the control module (43) is arranged on the surface of the board card body (41) facing the rotating assembly (2), the control module (43) is electrically connected to the detection module (42) and the motor assembly (3), and the control module (43) is used to receive the rotation angle and control the motor assembly (3) to rotate in a direction opposite to the rotation direction of the rotating assembly (2) based on the rotation angle.

3. The rotary switch according to claim 2, characterized in that, The control module (43) includes: a microcontroller (431), the microcontroller (431) is electrically connected to the detection module (42), and the microcontroller (431) is used to receive the rotation angle and generate a corresponding control signal based on the rotation angle; and a motor controller (432), the motor controller (432) is electrically connected to the microcontroller (431) and the motor assembly (3), the motor controller (432) receives the control signal and controls the motor assembly (3) to rotate in a direction opposite to the rotation direction of the rotating assembly (2) according to the control signal.

4. The rotary switch according to claim 3, characterized in that, The circuit board assembly (4) further includes: a power management module (44), the power management module (44) is electrically connected to the microcontroller (431), and the power management module (44) is used to provide a working voltage for the microcontroller (431).

5. The rotary switch according to any one of claims 1-4, characterized in that, The housing (1) includes: an outer shell (11); A partition plate (12), the partition plate (12) divides the inner cavity of the housing (11) into a first cavity (11A) and a second cavity (11B) along the second direction, a fixed shaft (121) extends upward along the second direction at the center of the partition plate (12), and a part of the rotating assembly (2) is located in the first cavity (11A) and is movably connected to the fixed shaft (121); and, A base (13), the base (13) is located in the second cavity (11B) and is fixedly connected to the cavity side wall of the second cavity (11B), and the circuit board assembly (4) is fixed in the base (13).

6. The rotary switch according to claim 5, characterized in that, The rotary switch further includes: A protection plate (5), the protection plate (5) is covered and connected with the base (13) to form a third cavity (13A), and the circuit board assembly (4) is fixed in the third cavity (13A).

7. The rotary switch according to claim 5, characterized in that, The rotating assembly (2) further includes: A first rotating member (22), the first rotating member (22) is located in the first cavity (11A) and sleeved on the fixed shaft (121), and the magnetic member (21) is fixedly connected to the first rotating member (22); A second rotating member (23), the second rotating member (23) is located in the first cavity (11A) and sleeved on the first rotating member (22), and the second rotating member (23) is also fixedly connected to the other part of the motor assembly (3); and, A knob ring sleeve (24), the knob ring sleeve (24) is located outside the first cavity (11A) and sleeved on the outer edge of the second rotating member (23).

8. The rotary switch according to claim 7, characterized in that, A receiving groove (22A) for receiving the magnetic member (21) is provided on a surface of the first rotating member (22) away from the partition plate (12).

9. The rotary switch according to claim 7, characterized in that, One of the knob ring sleeve (24) and the second rotating member (23) is provided with a buckle, and the other of the two is provided with a limiting groove, and the buckle abuts against the limiting groove.

10. A vehicle, characterized in that, The vehicle includes: A vehicle body; An in-vehicle display screen, the in-vehicle display screen is fixed in the vehicle body; and, The rotary switch according to any one of claims 1-9, the rotary switch is fixed in the vehicle body and electrically connected to the in-vehicle display screen.

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