A magnetic touch roller switch and automobile

Abstract

The application discloses a magnetic force touch roller switch and a car, relates to the technical field of switches, and is characterized in that the center shaft of the iron core is respectively arranged through the center holes in the two side end covers of the roller and is fixed to the support, so that the roller is rotatably suspended in the accommodating groove of the shell and is not in contact with the accommodating groove of the shell during rotation; the magnetic ring is coaxially sleeved in the interior of the roller and is connected with the inner wall of the roller to rotate synchronously with the roller; the iron core comprises the center shaft and a gear arranged around the circumferential surface of the center shaft; the gear is coaxially sleeved in the interior of the magnetic ring; a gap is arranged between the outer circumferential surface of the gear and the inner circumferential surface of the magnetic ring to form a non-contact magnetic force damping structure; when the magnetic ring is rotated relative to the iron core driven by the roller, the magnetic ring is not in contact with the iron core, so that friction loss can be avoided and rotation noise can be reduced; in addition, the damping touch feeling can be flexibly adjusted by only adjusting the magnetization strength of the magnetic ring or the gap between the magnetic ring and the iron core, and the damping touch feeling is convenient to adjust.

Description

Technical Field

[0001] This application relates to the field of switch technology, and in particular to a magnetic tactile roller switch and an automobile. Background Technology

[0002] In automobiles, scroll switches are commonly found on steering wheels or center consoles, typically used to adjust multimedia settings or adjust vehicle functions. To provide clear feedback from the scroll's movement, traditional scroll switches usually have a wavy central axis. A separately designed metal spring or pin presses against this wavy surface to create a tactile feedback when the scroll rotates. However, relying on this friction to generate the tactile feedback causes wear on the rotating surface. Over time, this wear diminishes the tactile feedback, making the shifts less distinct. Furthermore, the friction between the metal and the rotating surface generates noise, especially during continuous rapid scrolling, which negatively impacts the user experience.

[0003] Traditional roller switches suffer from frictional wear and noise. Although applying grease can slow down wear and reduce noise, the grease will deteriorate over time, reducing its lubrication effect. Moreover, the wavy rotating surface design of traditional rollers is complex. Once the mold is made and finalized, changing the damping feel requires modifying the mold and metal springs, which is time-consuming and labor-intensive.

[0004] Therefore, how to avoid frictional loss and reduce rotational noise, while conveniently adjusting the damping feel, is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a magnetic tactile roller switch and an automobile to solve the problems of friction loss, noise, and inconvenience in changing the damping feel of traditional roller switches.

[0006] To solve the above-mentioned technical problems, this application provides a magnetic tactile roller switch, comprising: a roller, a magnetic ring, an iron core, and a housing;

[0007] The magnetic ring is coaxially sleeved inside the roller, and the magnetic ring is connected to the inner wall of the roller to rotate synchronously with the roller. The iron core includes a central shaft and a gear arranged around the circumferential surface of the central shaft. The gear is coaxially sleeved inside the magnetic ring. A gap is provided between the outer circumferential surface of the gear and the inner circumferential surface of the magnetic ring to form a non-contact magnetic damping structure. The two end caps of the roller are respectively provided with central holes, and the two central holes are arranged coaxially. The housing is provided with a receiving groove. Supports are provided on both sides above the opening of the receiving groove. The two ends of the central shaft pass through the central holes and are fixed to the supports, so that the roller can be rotatably suspended in the receiving groove. The roller located outside the receiving groove is for operation. The roller drives the magnetic ring to rotate relative to the iron core to generate magnetic damping.

[0008] In one feasible embodiment, the outer peripheral surface of the roller is provided with an anti-slip part, the inner wall of the roller is provided with a boss, and one end face of the magnetic ring is provided with a groove that matches the boss. The magnetic ring and the roller are engaged by the boss and the groove.

[0009] In one feasible embodiment, the end cap on either side of the roller is detachably connected to the main body of the roller, and the outer wall of the end cap on either side of the roller is provided with a transmission gear. The transmission gear has a through hole in the middle for the central shaft to pass through, and the transmission gear is used to mesh with the gear set.

[0010] In one feasible embodiment, a protective cover is also included, the protective cover comprising a mounting base and paddles, the mounting base having a through hole, two paddles being disposed at the edge of the through hole and arranged opposite to each other, the mounting base being mounted on the upper part of the housing, the roller passing through the through hole, and the paddles wrapping around both sides of the roller.

[0011] In one feasible embodiment, the outer wall of the paddle is provided with a finger clearance groove.

[0012] In one feasible embodiment, the housing further includes a base, the base having a receiving cavity for accommodating the receiving groove, the surface of the base having a plug-in seat located at the opening edge of the receiving cavity, the plug-in seat having a plug-in groove, and the receiving groove of the housing having plug-in ears at both ends, the plug-in ears being inserted into the plug-in groove so that the receiving groove is suspended in the receiving cavity.

[0013] In one feasible embodiment, a circuit board is provided at the bottom of the receiving cavity, and a first silicone button, a second silicone button, a third silicone button and a grating sensor are mounted on the circuit board. A first connecting post, a second connecting post and a third connecting post are provided at the bottom of the housing. The first connecting post abuts against the first silicone button, the second connecting post abuts against the second silicone button, and the third connecting post abuts against the third silicone button. The first connecting post is located below the roller, and the second connecting post and the third connecting post are located on both sides below the roller.

[0014] In one feasible embodiment, the bottom edge of the mounting base is provided with a buckle, and the edge of the housing is provided with a locking platform that matches the buckle.

[0015] In one feasible embodiment, the magnetic ring is circular, and the inner circumferential surface of the magnetic ring is alternately magnetized with N poles and S poles, and the pole widths of each pole are equal; wherein, the pole width is equal to the circumference of the inner diameter of the magnetic ring divided by the preset number of gears, and the thickness of each tooth on the gear is equal to the circumference of the outer diameter of the gear divided by twice the preset number of gears.

[0016] This application also provides an automobile including the aforementioned magnetic tactile roller switch.

[0017] The magnetic tactile roller switch provided in this application includes: a roller, a magnetic ring, an iron core, and a housing; the two ends of the central shaft of the iron core pass through the central holes on the two end caps of the roller and are fixed to a bracket, so that the roller is rotatably suspended in the receiving groove of the housing, and the roller does not contact the receiving groove of the housing when rotating; the magnetic ring is coaxially sleeved inside the roller, and the magnetic ring is connected to the inner wall of the roller to rotate synchronously with the roller; the iron core includes a central shaft and a gear arranged around the circumferential surface of the central shaft, the gear is coaxially sleeved inside the magnetic ring, and a gap is provided between the outer circumferential surface of the gear and the inner circumferential surface of the magnetic ring to form a non-contact magnetic damping structure; when the roller drives the magnetic ring to rotate relative to the iron core, the magnetic ring does not contact the iron core, thereby avoiding frictional loss and reducing rotational noise; in addition, the damping feel can be flexibly adjusted by only adjusting the magnetization intensity of the magnetic ring or the gap between the magnetic ring and the iron core, without modifying the mold and metal spring, and the damping feel is easy to adjust.

[0018] The beneficial effects of this application on a car correspond to a magnetic tactile roller switch, as described above. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An exploded view of a magnetic tactile roller switch provided in an embodiment of this application;

[0021] Figure 2 An assembly diagram of a magnetic tactile roller switch provided in an embodiment of this application;

[0022] Figure 3 A front view of a magnetic tactile roller switch provided in an embodiment of this application;

[0023] Figure 4 A cross-sectional view of a magnetic tactile roller switch provided in an embodiment of this application;

[0024] Figure 5 An assembly diagram of another magnetic tactile roller switch provided in an embodiment of this application;

[0025] Figure 6 This application provides a first assembly schematic diagram of a magnetic tactile roller switch and a circuit board according to an embodiment of the present application.

[0026] Figure 7 This application provides a second assembly diagram of a magnetic tactile roller switch and a circuit board.

[0027] Figure 8 A schematic diagram of a circuit board provided in an embodiment of this application;

[0028] Figure 9 This is a schematic diagram of a product including a magnetic tactile roller switch, provided as an embodiment of this application.

[0029] The attached diagram is labeled as follows: 1-roller, 2-magnetic ring, 3-iron core, 4-housing, 5-protective cover, 6-base, 7-square disc, 101-end cap, 102-protrusion, 103-transmission gear, 104-through hole, 201-groove, 301-central shaft, 302-gear, 401-accommodating groove, 402-bracket, 403-plug ear, 404-first connecting post, 405-second connecting post, 406-third connecting post, 407-card slot, 501-mounting base, 502-paddle, 503-through hole, 504-finger clearance groove, 505-buckle, 601-plug base, 602-circuit board, 603-first silicone button, 604-second silicone button, 605-third silicone button. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0031] The core of this application is to provide a magnetic tactile roller switch and an automobile for avoiding frictional wear and reducing rotational noise, while conveniently adjusting the damping feel.

[0032] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Figure 1 This is an exploded view of a magnetic tactile roller switch provided in an embodiment of this application. Figure 2 This is an assembly diagram of a magnetic tactile roller switch provided in an embodiment of this application. Figure 3 This is a front view of a magnetic tactile roller switch provided in an embodiment of this application. Figure 4 A cross-sectional view of a magnetic tactile roller switch provided in an embodiment of this application is shown below. Figures 1 to 4 As shown, the magnetic tactile roller switch 1 includes: a roller 1, a magnetic ring 2, an iron core 3, and a housing 4; the magnetic ring 2 is coaxially sleeved inside the roller 1, and the magnetic ring 2 is connected to the inner wall of the roller 1 to rotate synchronously with the roller 1; the iron core 3 includes a central shaft 301 and a gear 302 arranged around the circumferential surface of the central shaft 301; the gear 302 is coaxially sleeved inside the magnetic ring 2; a gap is provided between the outer circumferential surface of the gear 302 and the inner circumferential surface of the magnetic ring 2 to form a non-contact magnetic damping structure. The roller 1 has a central hole on each of its two end caps 101, and the two central holes are arranged coaxially. The housing 4 has a receiving groove 401, and supports 402 are provided on both sides above the opening of the receiving groove 401. The two ends of the central shaft 301 pass through the central hole and are fixed to the supports 402, so that the roller 1 can be rotatably suspended in the receiving groove 401. The roller 1 located outside the receiving groove 401 is for operation. The roller 1 drives the magnetic ring 2 to rotate relative to the iron core 3 to generate magnetic damping.

[0034] The roller 1 in this embodiment includes an annular sidewall and two end caps 101, with a central hole coaxially formed in the center of each end cap 101. A portion of the outer periphery of the roller 1 is exposed outside the housing 4, forming an operating part for finger movement. This portion of the outer periphery of the roller 1 is located within a receiving groove 401 in the housing 4. The internal cavity of the roller 1 is used to accommodate a magnetic ring 2, and the magnetic ring 2 is connected to the inner wall of the roller 1 to prevent rotation relative to the roller 1. The magnetic ring 2 can be annular, multi-tile-shaped, or segmented arc-shaped. The magnetic ring 2 is coaxially embedded in the internal cavity of the roller 1, and its inner circumferential surface is a magnetized surface with several alternating N and S poles evenly distributed along the circumferential direction, forming a multi-pole magnetic field. The iron core 3 can be made of a magnetically conductive material; the iron core 3 includes a central shaft 301 and a gear 302. The two ends of the central shaft 301 extend into the central holes of the end caps 101 of the roller 1, forming a rotation axis. The central shaft 301 and the central hole are in clearance fit, that is, the inner diameter of the central hole is slightly larger than the outer diameter of the central shaft 301, to prevent the interference fit from causing squeezing friction and affecting the damping feel; the gear 302 is arranged around the circumference of the central shaft 301. The gear 302 is located inside the magnetic ring 2. The gaps between the teeth on the gear 302 are consistent. The gear 302 is made of a metal with high magnetic permeability; there is a gap between the outer circumference of the gear 302 and the inner circumference of the magnetic ring 2. The two have no mechanical contact, forming a non-contact magnetic damping structure. The housing 4 has a recessed receiving groove 401. A pair of brackets 402 are symmetrically arranged on both sides above the opening of the receiving groove 401. The top of the brackets 402 has a shaft hole or a slot for fixing the two ends of the central shaft 301 of the iron core 3, so that the iron core 3 is stationary. The roller 1 is suspended in the receiving groove 401 and rotates around the central shaft 301. The roller 1 does not contact the receiving groove 401. The roller 1 located outside the receiving groove 401 is for operation. When the user moves the exposed part of the roller 1, the roller 1 drives the magnetic ring 2 to rotate around the stationary iron core 3. The alternating magnetic field inside the magnetic ring 2 generates periodically changing magnetic resistance between the magnetic ring 2 and the gear 302 of the iron core 3, forming a sinusoidal magnetic damping torque, realizing a contactless, wear-free, and silent gear shifting feel.

[0035] This application provides a magnetic tactile roller switch, comprising: a roller 1, a magnetic ring 2, an iron core 3, and a housing 4; the magnetic ring 2 is coaxially sleeved inside the roller 1, and the magnetic ring 2 is connected to the inner wall of the roller 1 to rotate synchronously with the roller 1; the iron core 3 includes a central shaft 301 and a gear 302 arranged around the circumferential surface of the central shaft 301; the gear 302 is coaxially sleeved inside the magnetic ring 2, and a gap is provided between the outer circumferential surface of the gear 302 and the inner circumferential surface of the magnetic ring 2 to form a non-contact magnetic switch. The force damping structure has a central hole on each of the two end caps 101 of the roller 1, and the two central holes are arranged coaxially. The housing 4 has a receiving groove 401, and brackets 402 are provided on both sides above the opening of the receiving groove 401. The two ends of the central shaft 301 pass through the central hole and are fixed to the brackets 402, so that the roller 1 can be rotatably suspended in the receiving groove 401. The roller 1 located outside the receiving groove 401 is for operation. The roller 1 drives the magnetic ring 2 to rotate relative to the iron core 3 to generate magnetic damping. The two ends of the central shaft 301 of the iron core 3 pass through the central holes on the two end caps 101 of the roller 1 and are fixed to the bracket 402, so that the roller 1 can be rotatably suspended in the receiving groove 401 of the housing 4. When the roller 1 rotates, it does not contact the receiving groove 401 of the housing 4. The magnetic ring 2 is coaxially sleeved inside the roller 1 and is connected to the inner wall of the roller 1 to rotate synchronously with the roller 1. The iron core 3 includes a central shaft 301 and a gear 302 arranged around the circumference of the central shaft 301. The gear 302 is coaxially sleeved inside the magnetic ring 2. There is a gap between the outer circumference of the gear 302 and the inner circumference of the magnetic ring 2 to form a non-contact magnetic damping structure. When the roller 1 drives the magnetic ring 2 to rotate relative to the iron core 3, the magnetic ring 2 does not contact the iron core 3, thereby avoiding frictional loss and reducing rotational noise. In addition, the damping feel can be flexibly adjusted by only adjusting the magnetization intensity of the magnetic ring 2 or the gap between the magnetic ring 2 and the iron core 3, making the adjustment of the damping feel convenient.

[0036] Based on the above embodiments, the outer peripheral surface of the roller 1 in this application embodiment is provided with an anti-slip part, the inner wall of the roller 1 is provided with a boss 102, and one end face of the magnetic ring 2 is provided with a groove 201 that matches the boss 102. The magnetic ring 2 and the roller 1 are engaged by the boss 102 and the groove 201. The outer peripheral surface of the roller 1 in this application embodiment is formed with an anti-slip part to increase friction when the finger is flicked. The anti-slip part can be knurled. The inner wall of the roller 1 is provided with several protruding bosses 102. One end face of the magnetic ring 2 is provided with a corresponding groove 201. After the boss 102 is embedded in the groove 201, a circumferential engagement is formed to circumferentially limit the magnetic ring 2, so that the magnetic ring 2 and the roller 1 rotate synchronously without the need for screws or glue.

[0037] Based on the above embodiments, in this application embodiment, the end cap 101 on any side of the roller 1 is detachably connected to the main body of the roller 1, and the outer wall of the end cap 101 on any side of the roller 1 is provided with a transmission gear 103. The transmission gear 103 is provided with a through hole 104 in the middle for the central shaft 301 to pass through. The transmission gear 103 is used to mesh with the gear set.

[0038] In this embodiment, the end cap 101 on either side of the roller 1 is detachably connected to the annular body of the roller 1 for easy assembly and disassembly. Specifically, the detachable connection can be achieved by having a slot on the inner edge of the end cap 101 and a protrusion matching the slot on the edge of the roller 1's cavity. The protrusion is inserted into the slot to seal the roller 1's cavity with the end cap 101. A transmission gear 103 is provided on the outer wall of the end cap 101. A through hole 104 is provided in the center of the transmission gear 103 for the central shaft 301 of the iron core 3 to pass through. The transmission gear 103 meshes with an external gear set, which transmits the rotational motion of the roller 1 to the grating sensor on the circuit board 602. Regarding how the grating sensor detects the rotation of roller 1, specifically, the gear set adopts a multi-stage reduction structure: transmission gear 103 → intermediate small gear → coaxial large gear → grating code disk gear; the final gear is coaxially fixed with the grating code disk, and the code disk has light-transmitting teeth evenly distributed around its circumference; when roller 1 rotates, the code disk rotates at low speed after being reduced in speed, and its tooth row intermittently blocks the transmitter-receiver pair of the grating sensor, outputting a pulse sequence. The circuit board 602 can analyze the angle and direction of roller 1 by counting the pulses.

[0039] Based on the above embodiments, this application embodiment also includes a protective cover 5. The protective cover 5 includes a mounting base 501 and a paddle 502. The mounting base 501 is provided with a through hole 503. Two paddles 502 are provided at the edge of the through hole 503 and are arranged opposite to each other. The mounting base 501 is mounted on the top of the housing 4. The roller 1 passes through the through hole 503, and the paddles 502 wrap around both sides of the roller 1.

[0040] In this embodiment, the protective cover 5 consists of a mounting base 501 and two levers 502. The mounting base 501 is a frame-shaped component with a central through hole 503 and two levers 502 extending symmetrically from the edge of the hole. During assembly, the mounting base 501 is fastened to the top of the housing 4, and the outer periphery of the roller 1 protrudes from the through hole 503 for finger operation. The levers 502 on both sides retract inward and wrap around the sides of the roller 1, serving to prevent dust, accidental contact, and shield internal parts. They also act as the force-bearing surface for left and right finger movements, enabling the roller 1 to be pressed or swung laterally. Regarding how the mounting base 501 is assembled with the housing 4, specifically, the bottom edge of the mounting base 501 is provided with a buckle 505, and the edge of the housing 4 is provided with a locking platform 407 that matches the buckle 505. The locking platform 407 is inserted into the buckle 505, so that the protective cover 5 is tightly connected to the housing 4, and the fixation can be completed without screws.

[0041] Furthermore, the outer wall of the paddle 502 is provided with a finger relief groove 504. The outer wall of the paddle 502 is recessed to form the finger relief groove 504, and the arc of the groove surface fits the fingertip; when the user moves the roller 1 left and right, the finger relief groove 504 provides positioning and anti-slip space for the thumb or index finger, reducing accidental touches and improving operating comfort.

[0042] Based on the above embodiments, Figure 5 This is an assembly diagram of another magnetic tactile roller switch provided in an embodiment of this application, as shown below. Figure 5 As shown, this embodiment of the application also includes a base 6, which has a receiving cavity for accommodating the receiving groove 401. The surface of the base 6 is provided with a plug seat 601, which is located at the opening edge of the receiving cavity. The plug seat 601 is provided with a plug groove. The two ends of the receiving groove 401 of the housing 4 are provided with plug ears 403, which are inserted into the plug groove so that the receiving groove 401 is suspended in the receiving cavity.

[0043] In this embodiment, the base 6 is recessed to form a receiving cavity for accommodating the receiving groove 401 of the housing 4; a plug-in seat 601 is erected at the edge of the cavity opening, and the plug-in seat 601 opens into the receiving groove; the receiving groove 401 of the housing 4 has protruding plug-in ears 403 at both ends. During assembly, the plug-in ears 403 are aligned with the receiving groove and inserted, so that the entire receiving groove 401 of the housing 4 is suspended in the receiving cavity, achieving screwless quick installation. In this embodiment, the shape of the plug-in ears 403 is not limited, and can be designed according to actual needs.

[0044] Based on the above embodiments, Figure 6 This is a first assembly diagram of a magnetic tactile roller switch and a circuit board 602 provided in an embodiment of this application. Figure 7 This is a second assembly diagram of a magnetic tactile roller switch and a circuit board 602 provided in an embodiment of this application. Figure 8 A schematic diagram of a circuit board provided in an embodiment of this application is shown below. Figures 6 to 8 As shown, a circuit board 602 is provided at the bottom of the receiving cavity. A first silicone button 603, a second silicone button 604, a third silicone button 605 and a grating sensor are mounted on the circuit board 602. A first connecting post 404, a second connecting post 405 and a third connecting post 406 are provided at the bottom of the housing 4. The first connecting post 404 abuts against the first silicone button 603, the second connecting post 405 abuts against the second silicone button 604, and the third connecting post 406 abuts against the third silicone button 605. The first connecting post 404 is located below the roller 1, and the second connecting post 405 and the third connecting post 406 are located on both sides below the roller 1.

[0045] In this embodiment, a circuit board 602 is placed flat at the bottom of the receiving cavity. The circuit board 602 is equipped with a grating sensor to receive rotational pulses transmitted from the roller 1 via the gear set. The circuit board 602 also has a first silicone button 603, a second silicone button 604, and a third silicone button 605. Three connecting posts protrude downwards from the bottom surface of the housing 4. The first connecting post 404 is directly opposite the center of the roller 1, and the second and third connecting posts 406 are located on the left and right sides of the first connecting post 404. After assembly, the three connecting posts press against the top surface of the corresponding silicone buttons. When the roller 1 is pressed down, the first connecting post 404 compresses the first silicone button 603, triggering a preset signal. When the paddles 502 on both sides of the roller 1 are moved, the housing 4 swings slightly, and the second connecting post 405 or the third connecting post 406 compresses the corresponding second silicone button 604 or the third silicone button 605, outputting a left or right turn signal. The top surface of the silicone buttons simultaneously provides rebound force and a soft feel, and absorbs impact, protecting the circuit board 602. When a person presses the roller 1, the roller 1 transmits the hand action to the housing 4 through the central shaft 301 of the iron core 3. The housing 4 receives the feedback force provided by the first silicone pad, thereby transmitting the pressing feedback force back to the person. When a person moves the lever 502 left or right, the lever 502 transmits the left and right levering force directly to the housing 4. The housing 4 receives the feedback force provided by the second or third silicone pad, thereby transmitting the left and right levering feedback force back to the person.

[0046] Based on the above embodiments, the magnetic ring 2 in this application embodiment is circular, and the inner circumferential surface of the magnetic ring 2 is alternately magnetized with N poles and S poles, and the pole width of each pole is equal; wherein, the pole width is equal to the circumference of the inner diameter of the magnetic ring 2 divided by the preset number of gears, and the thickness of each tooth on the gear 302 is equal to the circumference of the outer diameter of the gear 302 divided by twice the preset number of gears.

[0047] In this embodiment, the magnetic ring 2 is circular, with its inner circumference alternately magnetized in the order NSNS… The number of magnetized poles is determined by the required number of damping levels. Each magnetic pole has an equal width, equal to the inner circumference of the magnetic ring 2 divided by the preset number of levels, ensuring that each magnetic pole corresponds exactly to one level angle. The tooth thickness of the gear 302 is equal to the outer circumference of the gear 302 divided by twice the number of levels, ensuring that the tooth width matches the magnetic pole width. When the roller 1 drives the magnetic ring 2 to rotate one tooth pitch, the magnetic field completes one N→S (or S→N) switch, and the change in magnetic resistance between the teeth and magnetic poles of the iron core 3 generates a peak damping, achieving clear and uniform tactile feedback for each level. For example, if the magnetic feel roller 1 is set to have 16 levels, the magnetic ring 2 needs to be magnetized with 8 pairs of NS poles inside, i.e., 8 N poles and 8 S poles alternately magnetized, while the outside is not magnetized. The iron core 3 has 16 teeth. The NS magnetic field loop inside the magnetic ring 2 passes through the toothed plates of the iron core 3. When the roller 1 drives the magnetic ring 2 to rotate, the NS magnetic field loop gradually disengages from the corresponding toothed plate of the iron core 3 and then re-engages with its adjacent toothed plate. During this process, the disengagement and engagement of the magnetic field loop with the toothed plate of the iron core 3 will sequentially generate resistance and assistance, thus generating a sinusoidal damping feel curve. One sinusoidal cycle corresponds to one gear. The magnetic ring 2 is circular, but can also be multi-piece tile-shaped or segmented arc-shaped. The iron core 3 does not need to be a complete gear 302; it can be made into a non-closed disc with notches. While ensuring the thickness of the toothed plates (i.e., the thickness of each toothed plate is equal to the circumference corresponding to the outer diameter of the gear 302 divided by twice the preset number of gears), only a few evenly spaced toothed plates are left, which can also achieve the effect of 16 gears. The damping feel can be flexibly adjusted by changing the magnetization intensity of the magnetic ring 2 or the gap between the magnetic ring 2 and the iron core 3. The damping feel is generated by the magnetic attraction between the magnet and the metal. Thanks to the non-contact design, the friction loss of the magnetic feel roller 1 switch is almost zero, resulting in a long lifespan and quiet operation. The absence of frictional resistance also makes the damping feel clear.

[0048] Finally, this application provides an embodiment of an automobile that includes the aforementioned magnetic tactile roller 1 switch. Since the magnetic tactile roller 1 switch has been described in detail above, it will not be repeated here. Figure 9 This application provides a schematic diagram of a product including a magnetic tactile roller switch, as shown in the embodiment of the present application. Figure 9 As shown, the magnetic tactile roller 1 switch can be mounted on the car's square disc 7 for adjusting multimedia and other menus.

[0049] The automobile provided in this application embodiment includes a magnetic tactile roller switch 1. The magnetic tactile roller switch 1 includes a roller 1, a magnetic ring 2, an iron core 3, and a housing 4. The two ends of the central shaft 301 of the iron core 3 pass through the central holes on the two end caps 101 of the roller 1 and are fixed to the bracket 402, so that the roller 1 is rotatably suspended in the receiving groove 401 of the housing 4, and the roller 1 does not contact the receiving groove 401 of the housing 4 when it rotates. The magnetic ring 2 is coaxially sleeved inside the roller 1, and the magnetic ring 2 is connected to the inner wall of the roller 1 to rotate synchronously with the roller 1. The iron core 3 includes a central shaft 301 and a gear 302 arranged around the circumference of the central shaft 301. The gear 302 is coaxially sleeved inside the magnetic ring 2. A gap is provided between the outer circumference of the gear 302 and the inner circumference of the magnetic ring 2 to form a non-contact magnetic damping structure. When the roller 1 drives the magnetic ring 2 to rotate relative to the iron core 3, the magnetic ring 2 and the iron core 3 do not contact each other, thereby avoiding frictional loss and reducing rotational noise. In addition, the damping feel can be flexibly adjusted by only adjusting the magnetization intensity of the magnetic ring 2 or the gap between the magnetic ring 2 and the iron core 3, making the adjustment of the damping feel convenient.

[0050] The foregoing has provided a detailed description of a magnetic tactile roller switch and an automobile provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0051] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A magnetic tactile roller switch, characterized in that, include: Roller (1), magnetic ring (2), iron core (3) and housing (4); The magnetic ring (2) is coaxially sleeved inside the roller (1), and the magnetic ring (2) is connected to the inner wall of the roller (1) to rotate synchronously with the roller (1). The iron core (3) includes a central shaft (301) and a gear (302) arranged around the circumferential surface of the central shaft (301). The gear (302) is coaxially sleeved inside the magnetic ring (2). A gap is provided between the outer circumferential surface of the gear (302) and the inner circumferential surface of the magnetic ring (2) to form a non-contact magnetic damping structure. The two end caps (101) on both sides of the roller (1) are respectively The housing (4) has a central hole and two central holes are arranged coaxially. The housing (4) has a receiving groove (401). The receiving groove (401) has brackets (402) on both sides above the opening. The two ends of the central shaft (301) pass through the central hole and are fixed to the brackets (402) so that the roller (1) can be rotatably suspended in the receiving groove (401). The roller (1) located outside the receiving groove (401) is for operation. The roller (1) drives the magnetic ring (2) to rotate relative to the iron core (3) to generate magnetic damping.

2. The magnetic tactile roller switch according to claim 1, characterized in that, The outer circumferential surface of the roller (1) is provided with an anti-slip part, and the inner wall of the roller (1) is provided with a boss (102). One side end face of the magnetic ring (2) is provided with a groove (201) that matches the boss (102). The magnetic ring (2) and the roller (1) are engaged by the boss (102) and the groove (201).

3. The magnetic tactile roller switch according to claim 1, characterized in that, The end cap (101) on either side of the roller (1) is detachably connected to the main body of the roller (1), and the outer wall of the end cap (101) on either side of the roller (1) is provided with a transmission gear (103). The transmission gear (103) has a through hole (104) in the middle for the central shaft (301) to pass through, and the transmission gear (103) is used to mesh with the gear set.

4. The magnetic tactile roller switch according to any one of claims 1 to 3, characterized in that, It also includes a protective cover (5), which includes a mounting base (501) and a paddle (502). The mounting base (501) has a through hole (503), and the two paddles (502) are located at the edge of the through hole (503) and are arranged opposite to each other. The mounting base (501) is mounted on the top of the housing (4), and the roller (1) passes through the through hole (503). The paddles (502) wrap around both sides of the roller (1).

5. The magnetic tactile roller switch according to claim 4, characterized in that, The outer wall of the paddle (502) is provided with a finger clearance groove (504).

6. The magnetic tactile roller switch according to claim 4, characterized in that, It also includes a base (6), which has a receiving cavity for accommodating the receiving groove (401). The surface of the base (6) is provided with a plug seat (601), which is located at the opening edge of the receiving cavity. The plug seat (601) is provided with a plug groove. The receiving groove (401) of the housing (4) is provided with plug ears (403) at both ends. The plug ears (403) are inserted into the plug groove so that the receiving groove (401) is suspended in the receiving cavity.

7. The magnetic tactile roller switch according to claim 6, characterized in that, The bottom of the cavity is provided with a circuit board (602), on which a first silicone button (603), a second silicone button (604), a third silicone button (605) and a grating sensor are mounted. The bottom of the housing (4) is provided with a first connecting post (404), a second connecting post (405) and a third connecting post (406). The first connecting post (404) abuts against the first silicone button (603), the second connecting post (405) abuts against the second silicone button (604), and the third connecting post (406) abuts against the third silicone button (605). The first connecting post (404) is located below the roller (1), and the second connecting post (405) and the third connecting post (406) are located on both sides below the roller (1).

8. The magnetic tactile roller switch according to claim 4, characterized in that, The bottom edge of the mounting base (501) is provided with a buckle (505), and the edge of the housing (4) is provided with a locking platform (407) that matches the buckle (505).

9. The magnetic tactile roller switch according to claim 1, characterized in that, The magnetic ring (2) is circular. The inner circumference of the magnetic ring (2) is magnetized with alternating N and S poles, and the pole widths of each pole are equal. The pole width is equal to the circumference of the inner diameter of the magnetic ring (2) divided by the number of preset gears. The thickness of each tooth on the gear (302) is equal to the circumference of the outer diameter of the gear (302) divided by twice the number of preset gears.

10. A car, characterized in that, Including the magnetic tactile roller switch as described in any one of claims 1 to 9.

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