Double-magnetic-ring rotary switch and center console

Abstract

The invention discloses a double-magnetic-ring rotary switch and a center console, and relates to the technical field of automobile electric appliance switches, and the double-magnetic-ring rotary switch comprises a fixed base and a rotating member which is rotatably arranged at the circumferential outer side of the fixed base; an inner magnetic ring is arranged on the peripheral side surface of the fixed base; a plurality of first magnetic poles and second magnetic poles with opposite magnetisms are alternately arranged on the outer side of the inner magnetic ring; an outer magnetic ring is arranged on the inner circumferential side face of the rotating part and coaxially arranged on the circumferential outer side of the inner magnetic ring, a plurality of third magnetic poles and fourth magnetic poles with opposite magnetism are alternately arranged on the inner side of the outer magnetic ring, the first magnetic poles and the fourth magnetic poles are opposite in magnetism, and the second magnetic poles and the third magnetic poles are opposite in magnetism. The double-magnetic-ring rotary switch solves the technical problems that most of existing rotary switches adopt contact type mechanical structures, the phenomena of fuzzy hand feeling and high noise often exist due to the mutual friction mode, and the use experience of customers is affected.

Description

Technical Field

[0001] This invention relates to the field of automotive electrical switch technology, and in particular to a dual magnetic ring rotary switch and a center console. Background Technology

[0002] A rotary switch is a type of automotive electrical switch, commonly found on the center console and armrest of a car, used for adjusting and controlling functions such as air conditioning, entertainment systems, and driving modes. With the rapid development of automotive technology and the rise of new energy vehicles, the user experience and noise reduction of in-vehicle switches are receiving increasing attention from vehicle manufacturers.

[0003] Most existing rotary switches employ contact-based mechanical structures, such as metal springs or a combination of a pin and a compression spring, matched with a plastic block containing a corresponding curved surface to generate the rotary operating feel. This frictional method often results in a vague feel and relatively high noise levels. Furthermore, over long-term use, wear occurs between the friction surfaces, leading to a decrease in operating force and impacting the user experience. Therefore, this paper proposes a dual-magnetic-ring rotary switch and control panel to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a dual magnetic ring rotary switch and a central control panel, which solves the technical problem that most existing rotary switches adopt a contact-type mechanical structure, and their mutual friction often results in vague tactile feedback and high noise, affecting the user experience.

[0005] To achieve the above objectives, the present invention provides a dual magnetic ring rotary switch, comprising: a fixed base and a rotating component rotatably disposed on the outer side of the fixed base in the circumferential direction; An inner magnetic ring is provided on the outer peripheral side of the fixed base, and several first magnetic poles and second magnetic poles with opposite magnetic properties are alternately arranged on the outer side of the inner magnetic ring. An outer magnetic ring is provided on the inner circumferential side of the rotating component. The outer magnetic ring is coaxially arranged on the outer side of the inner magnetic ring. A plurality of third and fourth magnetic poles with opposite magnetic properties are alternately arranged on the inner side of the outer magnetic ring. The first and fourth magnetic poles have opposite magnetic properties, and the second and third magnetic poles have opposite magnetic properties.

[0006] Preferably, the first magnetic pole and the second magnetic pole are alternately arranged in the inner magnetic ring using an outward Hellbeck array magnetization method, so that the magnetic field of the inner magnetic ring is concentrated and distributed to the circumferential outer side of the inner magnetic ring.

[0007] Preferably, the third and fourth magnetic poles are alternately arranged in the outer magnetic ring using an inward Hellbeck array magnetization method, so that the magnetic field of the outer magnetic ring is concentrated and distributed towards the circumferential inner side of the outer magnetic ring.

[0008] Preferably, the rotating component is provided with a plurality of blades, each blade being disposed in the same axial direction as a third magnetic pole or a fourth magnetic pole, and a notch being provided between two adjacent blades. A grating sensor for detecting the number of blades or notches passing through is provided on one side of the fixed base.

[0009] Preferably, a first annular mounting groove is provided on the outer circumferential side of the fixed base, and one of the end face of the first annular mounting groove and the end face of the inner magnetic ring is a first positioning protrusion, and the other of the end face of the first annular mounting groove and the end face of the inner magnetic ring is a first positioning groove that matches the first positioning protrusion.

[0010] Preferably, a second annular assembly groove is provided on the inner circumferential side of the rotating component, and one of the end face of the second annular assembly groove and the end face of the outer magnetic ring is a second positioning protrusion, and the other of the end face of the second annular assembly groove and the end face of the inner magnetic ring is a second positioning groove adapted to the second positioning protrusion.

[0011] Preferably, the two end faces of the outer magnetic ring are arranged with a plurality of first positioning grooves that are adapted to the mold ejector pins; the two end faces of the inner magnetic ring are arranged with a plurality of second positioning grooves that are adapted to the mold ejector pins.

[0012] Preferably, a gap of a predetermined size is provided between the inner magnetic ring and the outer magnetic ring.

[0013] The second technical solution of the present invention also provides a central control panel, including the dual magnetic ring rotary switch described in any of the above claims, and further including a base disposed on the base and a decorative panel disposed on the base, wherein the fixed base is disposed on the base.

[0014] Preferably, a central component is provided on the base, a knob bracket is rotatably provided on the decorative panel, the central component is coaxially provided on the inner side of the knob bracket, the central component is fixedly connected to the base, the knob bracket is rotatably connected to the central component, and the knob bracket is connected to the rotating component.

[0015] Compared to the aforementioned background technology, the dual-magnetic-ring rotary switch provided by this invention has the following beneficial effects: the first and fourth magnetic poles have opposite magnetic properties, and the second and third magnetic poles have opposite magnetic properties. In a stationary state, due to the principle of attraction between opposite magnetic poles, the first and fourth magnetic poles are located in the same radial direction, and the second and third magnetic poles are also located in the same radial direction. When the first and third magnetic poles are located in the same radial direction, and the second and fourth magnetic poles are located in the same radial direction, due to the principle of repulsion between like magnetic poles, the torque required to rotate the rotating component is at its maximum. Therefore, while rotating the rotating component, when the first magnetic pole passes through a position in the same radial direction as any of the third magnetic poles, and when the second magnetic pole passes through a position in the same radial direction as any of the fourth magnetic poles, a distinct tactile feedback of the operating gear is generated. Compared to contact-type mechanical structures, there is no mutual friction, and even with long-term use, there will be no wear. Moreover, the gear shifting feel is clearer, and there is no obvious noise, effectively improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a cross-sectional schematic diagram provided for an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the rotating component provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the assembly of the outer magnetic ring and the outer magnetic ring provided in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the outer magnetic ring provided in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the inner magnetic ring provided in an embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of the center console provided in an embodiment of the present invention; Figure 7 This is an exploded view of the central control console provided in an embodiment of the present invention.

[0018] Specifically, 1-fixed base; 101-first annular assembly groove; 2-rotating component; 201-blade; 202-notch; 203-second annular assembly groove; 3-inner magnetic ring; 301-first magnetic pole; 302-second magnetic pole; 303-first positioning protrusion; 304-second positioning groove; 4-outer magnetic ring; 401-third magnetic pole; 402-fourth magnetic pole; 403-second positioning protrusion; 404-first positioning groove; 5-grating sensor; 6-knob; 7-base; 8-decorative panel; 9-knob bracket; 10-central assembly; 11-circuit board; 12-base plate; 13-screw. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, to achieve the above objectives, the present invention provides a dual-magnetic-ring rotary switch, comprising: a fixed base 1 and a rotating component 2, the rotating component 2 being rotatably disposed on the circumferential outer side of the fixed base 1. An inner magnetic ring 3 is disposed on the outer circumferential side of the fixed base 1, with several alternating first magnetic poles 301 and second magnetic poles 302 of opposite magnetic polarity on the outer side of the inner magnetic ring 3; simultaneously, an outer magnetic ring 4 is disposed on the inner circumferential side of the rotating component 2, coaxially disposed on the circumferential outer side of the inner magnetic ring 3, with several alternating third magnetic poles 401 and fourth magnetic poles 402 of opposite magnetic polarity on the inner side of the outer magnetic ring 4. The first magnetic poles 301 and fourth magnetic poles 402 have opposite magnetic polarity, and the second magnetic poles 302 and third magnetic poles 401 have opposite magnetic polarity. In a static state, due to the principle of attraction between opposite magnetic poles, the first magnetic poles 301 and fourth magnetic poles 402 are located in the same radial direction, and the second magnetic poles 302 and third magnetic poles 401 are also located in the same radial direction. When the first magnetic pole 301 and the third magnetic pole 401 are located in the same radial direction, and the second magnetic pole 302 and the fourth magnetic pole 402 are located in the same radial direction, the torque required to rotate the rotating component 2 is at its maximum due to the principle of like poles repelling each other. Rotating the rotating component 2, when the first magnetic pole 301 passes through a position in the same radial direction as either of the third magnetic poles 401, and when the second magnetic pole 302 passes through a position in the same radial direction as either of the fourth magnetic poles 402, a distinct tactile feedback is generated for each gear position. Compared to contact-type mechanical structures, there is no mutual friction, i.e., no frictional stickiness, and the rotation of the rotating component 2 is smoother. Even with long-term use, there will be no wear, thus ensuring that the operating torque of the dual magnetic ring rotary switch never decreases, effectively improving its service life. Furthermore, the gear position feedback is clearer, and the noise level is lower, effectively improving the user experience. Specifically, the first magnetic pole 301 is the S pole, while the second magnetic pole 302 is the N pole, the third magnetic pole 401 is the S pole, and the fourth magnetic pole 402 is the N pole.

[0022] Optionally, 12 first magnetic poles 301 and 12 second magnetic poles 302 are arranged on the outer side of the inner magnetic ring 3, and 12 third magnetic poles 401 and 12 fourth magnetic poles 402 are arranged on the inner side of the outer magnetic ring 4. Each time the rotating part 2 rotates, a single first magnetic pole 301 will be located in the same radial direction as the 12 third magnetic poles 401 or the 12 fourth magnetic poles 402, thereby generating 12 gear shifts in sequence.

[0023] In some embodiments of the present invention, the first magnetic pole 301 and the second magnetic pole 302 are alternately arranged in the inner magnetic ring 3 using an outward Hellbeck array magnetization method, while the third magnetic pole 401 and the fourth magnetic pole 402 are alternately arranged in the outer magnetic ring 4 using an inward Hellbeck array magnetization method, so that the magnetic field of the outer magnetic ring 4 is concentrated and distributed towards the circumferential inner side of the outer magnetic ring 4. That is, the outer circumferential wall of the inner magnetic ring 3 is the magnetized surface, and the inner circumferential wall of the outer magnetic ring 4 is the magnetized surface, so that the magnetic field of the inner magnetic ring 3 is oriented to converge and distribute outward, and the magnetic field of the outer magnetic ring 4 is oriented to converge and distribute inward. Thus, all the magnetic lines of force generated by the inner magnetic ring 3 extend towards the outer magnetic ring 4, which is coaxially sleeved on its outer circumferential side, and all the magnetic lines of force generated by the outer magnetic ring 4 extend towards the inner magnetic ring 3, which is coaxially sleeved on its outer circumferential side. The magnetic lines of force can accurately form a closed magnetic field loop corresponding to the number of magnetic poles between the inner magnetic ring 3 and the outer magnetic ring 4, so as to maximize the utilization of the magnetic properties of the inner magnetic ring 3, effectively avoid magnetic energy loss caused by magnetic field dispersion, and at the same time reduce the amount of permanent magnet material used, saving material costs for magnet processing and manufacturing.

[0024] It should be noted that the first magnetic pole 301 and the second magnetic pole 302 are alternately arranged in the inner magnetic ring 3 using an outward Hellbeck array magnetization method, while the third magnetic pole 401 and the fourth magnetic pole 402 are alternately arranged in the outer magnetic ring 4 using an inward Hellbeck array magnetization method. This can generate a larger upper limit of rotational torque. Moreover, by adjusting the magnetization intensity of the outer magnetic ring 4 and the inner magnetic ring 3, different operating torques can be achieved, providing customers with a wider range of rotational torque options and thus expanding the applicability of the overall dual magnetic ring rotary switch.

[0025] In some embodiments, by improving the magnetic energy utilization efficiency of the outer magnetic ring 4 and the inner magnetic ring 3, it is not necessary to add an additional magnet structure or expand the installation space to compensate for magnetic energy loss. This reduces the size of the inner magnetic ring 3 and the outer magnetic ring 4, making the overall layout of the dual magnetic ring rotary switch more compact. This allows it to adapt to more installation and usage scenarios in small spaces, further improving the space utilization and scenario adaptability of the dual magnetic ring rotary switch.

[0026] like Figure 5As shown, in some embodiments of the present invention, the rotating member 2 is provided with a plurality of blades 201, each blade 201 corresponding one-to-one with the third magnetic pole 401 and the fourth magnetic pole 402 on the inner side of the outer magnetic ring 4 and coaxially arranged in the same axial direction. A notch 202 for recognition by the grating sensor 5 is formed between two adjacent blades 201. A grating sensor 5 for detecting the number of blades 201 or notches 202 passing through is provided on one side of the fixed base 1. The grating sensor 5 corresponds to the axial position of the blades 201 and the notches 202. When the rotating component 2 rotates around its central axis, driving the outer magnetic ring 4 and the blade 201 to rotate, each time the outer magnetic ring 4 rotates past a third magnetic pole 401 or a fourth magnetic pole 402, the blade 201 and the notch 202 will pass through the detection area of ​​the grating sensor 5. The grating sensor 5 can capture the alternating passing signals of the blade 201 and the notch 202 in real time and generate corresponding detection changes, thereby accurately outputting a switching signal corresponding to the actual rotation angle of the outer magnetic ring 4, realizing accurate detection of the rotation angle of the rotating component 2 and quickly obtaining gear information. Moreover, the grating sensor 5 and the blade 201 have a non-contact detection cooperation, with no mechanical friction, further improving the working stability and service life of the dual magnetic ring rotary switch.

[0027] In some embodiments of the present invention, a first annular mounting groove 101 is provided on the circumferential outer side of the fixed base 1, and the inner magnetic ring 3 is embedded in the first annular mounting groove 101 to form a fixed fit. The two end faces of the first annular mounting groove 101 and the two end faces of the inner magnetic ring 3 adopt a positioning structure design with a concave-convex fit. One of the end faces of the first annular mounting groove 101 and the inner magnetic ring 3 is a first positioning protrusion 303, and the other is a first positioning groove (not shown in the figure) adapted to the first positioning protrusion 303. Preferably, as shown... Figure 3 As shown, the inner magnetic ring 3 has first positioning protrusions 303 on both ends. The first positioning protrusion 303 on one end of the inner magnetic ring 3 serves as an injection molding positioning reference. During the injection molding process of the fixed base 1, it can accurately limit the circumferential angle of the inner magnetic ring 3 when it is placed into the injection mold, ensuring that the first magnetic pole 301 and the second magnetic pole 302 formed by the magnetization of the inner magnetic ring 3 maintain the preset orientation accuracy after injection molding assembly, thereby avoiding the impact of angular deviation on the subsequent magnetic pole engagement with the outer magnetic ring 4. The first positioning protrusion 303 on the other end of the inner magnetic ring 3 forms a double limit in the axial and circumferential directions with the first annular assembly groove 101, enhancing the connection between the inner magnetic ring 3 and the fixed base 1, effectively limiting the circumferential rotation and axial movement of the inner magnetic ring 3 relative to the fixed base 1, and further preventing problems such as magnetic pole misalignment and gear shift distortion caused by the relative displacement of the inner magnetic ring 3, effectively improving the working stability of the dual magnetic ring rotary switch.

[0028] Similarly, a second annular mounting groove 203 is provided on the inner circumferential side of the rotating component 2. The outer magnetic ring 4 is fitted into the second annular mounting groove 203 to form a fixed fit. The two end faces of the second annular mounting groove 203 and the two end faces of the inner magnetic ring 3 adopt a positioning structure design with a concave-convex fit. Among them, one of the end faces of the second annular mounting groove 203 and the end face of the outer magnetic ring 4 is a second positioning protrusion 403, and the other of the end faces of the second annular mounting groove 203 and the end face of the inner magnetic ring 3 is a second positioning groove (not shown in the figure) that matches the second positioning protrusion 403. Preferably, as shown in the figure... Figure 4 As shown, the outer magnetic ring 4 has second positioning protrusions 403 on both ends. The second positioning protrusion 403 on one end of the outer magnetic ring 4 serves as an injection molding positioning reference. During the injection molding process of the rotating part 2, it can accurately limit the circumferential angle of the outer magnetic ring 4 when it is placed into the injection mold, ensuring that the third magnetic pole 401 and the fourth magnetic pole 402 formed by the magnetization of the outer magnetic ring 4 maintain the preset orientation accuracy after injection molding assembly. This ensures the accuracy of the magnetic pole engagement between the outer magnetic ring 4 and the inner magnetic ring 3, avoiding problems such as abnormal magnetic pole attraction and repulsion engagement and unclear gear feel due to angular deviation. The second positioning protrusion 403 or the second positioning groove on the other end of the outer magnetic ring 4 forms a double axial and circumferential limit with the second annular assembly groove 203, enhancing the connection between the outer magnetic ring 4 and the rotating part 2. This effectively limits the circumferential rotation and axial movement of the outer magnetic ring 4 relative to the rotating part 2 during rotation, further preventing magnetic pole misalignment caused by relative displacement of the outer magnetic ring 4.

[0029] It should be noted that, compared with the traditional snap-fit ​​assembly or screw 13 fixing assembly method, the injection molding method for installing the inner magnetic ring 3 and outer magnetic ring 4 can further enhance the firmness of the inner magnetic ring 3 and outer magnetic ring 4, and effectively improve the service life of the overall double magnetic ring rotary switch.

[0030] It should be further noted that both the inner magnetic ring 3 and the outer magnetic ring 4 use ferrite powder as the core material. Ferrite powder has the advantage of low price, which can reduce the overall manufacturing cost of the dual magnetic ring rotary switch. Of course, the inner magnetic ring 3 and the outer magnetic ring 4 can also use neodymium iron boron powder as the core material. Its principle is similar to that of ferrite powder, and it can make the inner magnetic ring 3 and the outer magnetic ring 4 generate stronger rotational torque after molding. The corresponding core material can be flexibly selected according to actual needs. Meanwhile, both the inner magnetic ring 3 and the outer magnetic ring 4 are injection molded by mixing ferrite powder with a certain proportion of engineering plastic particles. The uniform mixing of ferrite powder and engineering plastic particles allows the molded magnetic ring to combine the excellent magnetic properties of ferrite with the good injection molding properties of engineering plastic. This breaks through the limitations of traditional magnetic component molding processes and realizes integrated injection molding of various complex structures. It eliminates the need for subsequent processing steps on the inner magnetic ring 3 or the outer magnetic ring 4 to adapt to the integrated molding requirements of fine structures such as the first positioning protrusion 303 or the first positioning groove on the inner magnetic ring 3 and the second positioning protrusion 403 or the second positioning groove on the outer magnetic ring 4. This improves the structural strength of the inner magnetic ring 3 and the outer magnetic ring 4, making them less prone to cracking or breakage during long-term magnetic field forces and rotational operation. Moreover, the properties of engineering plastic enable the inner magnetic ring 3 and the outer magnetic ring 4 to have good insulation and corrosion resistance, thereby resisting the influence of external environmental factors and further improving the service life and long-term reliability of the dual magnetic ring rotary switch.

[0031] In some embodiments of the present invention, several first positioning grooves 404 adapted to mold ejector pins are arrayed on both ends of the outer magnetic ring 4. The first positioning grooves 404 allow the mold ejector pins to accurately insert and position the outer magnetic ring 4 during the injection molding process. This enables the outer magnetic ring 4 to be doubly limited in both circumferential and axial directions after it is placed into the injection mold, preventing the magnetic pole angle from being misaligned due to the outer magnetic ring 4 shifting or rotating during the injection molding process. It also ensures the assembly accuracy of the outer magnetic ring 4 within the second annular assembly groove 203. The first positioning groove 404 on the other end of the outer magnetic ring 4 serves as the opening position for the injection gate, providing a positioning reference for the arrangement of the injection gate. This allows the injection material to be smoothly injected into the mold cavity along the preset position, avoiding injection defects and achieving precise positioning and stable fixation of the outer magnetic ring 4. This, in turn, ensures the structural accuracy and magnetic pole matching accuracy of the outer magnetic ring 4 and the rotating part 2 after they are integrally injection molded.

[0032] Similarly, several second positioning grooves 304 adapted to the mold ejector pins are arrayed on both ends of the inner magnetic ring 3. The second positioning grooves 304 allow the mold ejector pins to accurately insert and position the inner magnetic ring 3 during the injection molding process. They can achieve dual circumferential and axial positioning of the inner magnetic ring 3 after it is placed into the injection mold, preventing the magnetic pole angle from being misaligned due to the displacement or rotation of the outer magnetic ring 4 during the injection molding process. At the same time, they can also ensure the assembly accuracy of the outer magnetic ring 4 in the second annular assembly groove 203. The first positioning groove 404 on the other end of the inner magnetic ring 3 serves as the opening position of the injection gate, providing a positioning reference for the arrangement of the injection gate. This allows the injection material to be smoothly injected into the mold cavity along the preset position, avoiding injection defects and achieving precise positioning and stable fixation of the inner magnetic ring 3. This, in turn, ensures the structural accuracy and magnetic pole matching accuracy of the inner magnetic ring 3 and the fixed base 1 after injection molding.

[0033] In some embodiments of the present invention, a predetermined gap is provided between the inner magnetic ring 3 and the outer magnetic ring 4, so that the inner magnetic ring 3 and the outer magnetic ring 4 are coaxially sleeved in a non-contact engagement state. This ensures that the first magnetic pole 301 and the second magnetic pole 302 in the inner magnetic ring 3 and the third magnetic pole 401 and the fourth magnetic pole 402 in the outer magnetic ring 4 are attracted and repelled in a stable engagement. At the same time, it can isolate the direct contact between the inner magnetic ring 3 and the outer magnetic ring 4, and prevent the inner magnetic ring 3 and the outer magnetic ring 4 from rubbing and colliding when the rotating part 2 drives the outer magnetic ring 4 to rotate. This effectively prevents contact wear, friction noise and other phenomena, and effectively improves the reliability and user experience of the dual magnetic ring rotary switch.

[0034] like Figure 6 and Figure 7 As shown, in addition to the aforementioned dual-magnetic-ring rotary switch, this invention also provides a central control panel including the dual-magnetic-ring rotary switch disclosed in the above embodiments, further including a base 7 disposed on the base and a decorative panel 8 disposed on the base 7. The aforementioned fixed base 1 of the dual-magnetic-ring rotary switch is assembled at a preset assembly position on the base 7. The base 7 provides a stable installation support and assembly reference for the fixed base 1, ensuring that the overall assembly of the fixed base 1 and the central control panel maintains a preset positional accuracy, thereby preventing problems such as loosening or displacement of the rotary switch during daily operation and effectively ensuring the stability of the dual-magnetic-ring rotary switch. On the other hand, the decorative panel 8 can provide a shielding and protective effect on the connection between the base 7 and the rotary switch, making the overall appearance of the central control panel cleaner and more aesthetically pleasing. At the same time, it can reduce the entry of external dust, water stains, and other impurities into the interior of the dual-magnetic-ring rotary switch, improving the reliability of the dual-magnetic-ring rotary switch. The structure of other parts of this central control panel can be found in the prior art, and will not be described in detail here.

[0035] In some embodiments of the present invention, a central component 10 is provided on the base 7, and a knob bracket 9 is rotatably provided on the decorative panel 8. The central component 10 is coaxially provided on the inner side of the knob bracket 9. The end of the central component 10 away from the knob bracket 9 is firmly fixedly connected to the base 7. The knob bracket 9 and the central component 10 form a coaxial rotational engagement. The knob bracket 9 is connected to the rotating component 2, and the knob bracket 9 is also fixedly connected to the rotating component 2 of the double magnetic ring rotary switch. Specifically, the rotating component 2 and the knob bracket 9 are fixedly connected by screws 13, so that the rotating component 2 can be synchronously driven by the knob bracket 9 to rotate smoothly around the axis of the central component 10, ensuring the coaxiality when the knob bracket 9 drives the rotating component 2 to rotate. When the operator rotates the knob bracket 9, the force can be directly transmitted to the rotating component 2, effectively improving the smoothness of the double magnetic ring rotary switch gear adjustment. In addition, a knob 6 is provided on the knob bracket 9, which makes it convenient for the operator to directly turn the knob bracket 9.

[0036] It should be noted that a circuit board 11 is provided on the base 7, and the grating sensor 5 is fixed on the circuit board 11. After the grating sensor 5 captures the signal of the alternating passage of the blade 201 and the notch 202, this signal is collected by the circuit board 11. After further processing by the circuit board 11, a switching signal corresponding to the actual rotation angle of the outer magnetic ring 4 can be output, thereby realizing the accurate detection of the rotation angle of the rotating part 2 and quickly obtaining the gear information.

[0037] In addition, a bottom shell is provided at the bottom of the base 7, and multiple sets of matching buckle structures are provided on the bottom shell and the base 7, so that the bottom shell and the base 7 can be quickly assembled and disassembled, which facilitates the maintenance of the dual magnetic ring rotary switch in the later stage.

[0038] In summary, by utilizing the principle of magnetic repulsion between like poles, when rotating component 2, the first magnetic pole 301 will produce a distinct tactile feedback when passing through a position in the same radial direction as any third magnetic pole 401, and the second magnetic pole 302 will produce a position in the same radial direction as any fourth magnetic pole 402. Compared to contact-type mechanical structures, there is no mutual friction, and there will be no wear even after long-term use. Moreover, the gear shifting feel is clearer, and there is no obvious noise, effectively improving the user experience for operators.

[0039] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A double magnetic ring rotary switch, characterized in that, include: Fixed base (1) and rotating component (2) rotatably disposed on the outer side of the fixed base (1); An inner magnetic ring (3) is provided on the outer periphery of the fixed base (1), and several first magnetic poles (301) and second magnetic poles (302) with opposite magnetic properties are alternately arranged on the outer side of the inner magnetic ring (3). The inner circumferential side of the rotating component (2) is provided with an outer magnetic ring (4), which is coaxially arranged on the outer side of the inner magnetic ring (3). A number of third magnetic poles (401) and fourth magnetic poles (402) with opposite magnetic properties are alternately arranged on the inner side of the outer magnetic ring (4). The first magnetic pole (301) and the fourth magnetic pole (402) have opposite magnetic properties, and the second magnetic pole (302) and the third magnetic pole (401) have opposite magnetic properties.

2. The dual magnetic ring rotary switch according to claim 1, characterized in that, The first magnetic pole (301) and the second magnetic pole (302) are alternately arranged in the inner magnetic ring (3) in an outward Helbeck array magnetization manner, so that the magnetic field of the inner magnetic ring (3) is concentrated and distributed to the circumferential outer side of the inner magnetic ring (3).

3. A double magnetic ring rotary switch according to claim 2, characterized in that, The third magnetic pole (401) and the fourth magnetic pole (402) are alternately arranged in the outer magnetic ring (4) in an inward Hellbeck array magnetization manner, so that the magnetic field of the outer magnetic ring (4) is concentrated and distributed inward on the circumferential side of the outer magnetic ring (4).

4. A double magnetic ring rotary switch according to claim 1, characterized in that, The rotating component (2) is provided with a plurality of blades (201), each blade (201) is respectively arranged in the same axial direction with a third magnetic pole (401) or a fourth magnetic pole (402), and there is a notch (202) between two adjacent blades (201). A grating sensor (5) is provided on one side of the fixed base (1) for detecting the number of blades (201) or notches (202) passing through.

5. A double magnetic ring rotary switch according to any one of claims 1-4, characterized in that, The fixed base (1) is provided with a first annular assembly groove (101) on its circumferential outer side. One of the end face of the first annular assembly groove (101) and the end face of the inner magnetic ring (3) is a first positioning protrusion (303), and the other of the end face of the first annular assembly groove (101) and the end face of the inner magnetic ring (3) is a first positioning groove that is adapted to the first positioning protrusion (303).

6. A double magnetic ring rotary switch according to any one of claims 1-4, characterized in that, The rotating part (2) is provided with a second annular assembly groove (203) on its inner circumferential side. One of the end face of the second annular assembly groove (203) and the end face of the outer magnetic ring (4) is a second positioning protrusion (403), and the other of the end face of the second annular assembly groove (203) and the end face of the inner magnetic ring (3) is a second positioning groove that is adapted to the second positioning protrusion (403).

7. A double magnetic ring rotary switch according to any one of claims 1-4, characterized in that, The outer magnetic ring (4) has several first positioning grooves (404) arranged on both ends of the outer magnetic ring (4); the inner magnetic ring (3) has several second positioning grooves (304) arranged on both ends of the inner magnetic ring (3) to match the mold ejector pin.

8. A double magnetic ring rotary switch according to any one of claims 1-4, characterized in that, A gap of a preset size is provided between the inner magnetic ring (3) and the outer magnetic ring (4).

9. A central control panel, characterized in that, The dual magnetic ring rotary switch according to any one of claims 1-8 further includes a base (7) disposed on the base (7) and a decorative panel (8) disposed on the base (7), wherein the fixed base (1) is disposed on the base (7).

10. A central control console according to claim 9, characterized in that, A central component (10) is provided on the base (7), and a knob bracket (9) is rotatably provided on the decorative panel (8). The central component (10) is coaxially provided on the inner side of the knob bracket (9). The central component (10) is fixedly connected to the base (7), and the knob bracket (9) is rotatably connected to the central component (10). The knob bracket (9) is also connected to the rotating part (2).

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