Roller module

Abstract

A roller module comprises a wheel disc, a magnetizer and an electric permanent magnet assembly. The wheel disc can rotate along a rotation axis. The magnetizer and the wheel disc are coaxially arranged and can rotate synchronously. The magnetizer comprises a hub and a plurality of spokes, and the spokes extend in the radial direction from the hub and are arranged in a radial mode. The magnetizer is located between the wheel disc and the electro-permanent magnet assembly. The electro-permanent magnet assembly has a first operating state and a second operating state, and when the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force to at least one of the multiple spokes in the axial direction. When the electro-permanent magnet assembly is in the second operation state, the electro-permanent magnet assembly provides a second magnetic attraction force to at least one of the multiple spokes in the axial direction, and the first magnetic attraction force is larger than the second magnetic attraction force.

Description

Technical Field

[0001] This invention relates to a roller module, and more particularly to a roller module having a tactile feedback mode and a non-tactile feedback mode, and a human-machine interface device using this roller module. Background Technology

[0002] Existing scroll wheel modules in human-computer interface devices, such as mice, are designed to operate in both tactile and non-tactile modes. However, this requires significant structural modifications to the wheel itself to accommodate both modes, which in turn affects the wheel's balance and reduces its durability. Therefore, there is still considerable room for improvement in existing scroll wheel modules to achieve both tactile and non-tactile operating modes. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide a roller module that, by axially arranging an electro-permanent magnet assembly, provides axial resistance to the rotation of the roller in a tactile mode. When the coil is energized and provides a reverse current, the roller is not affected by the electro-permanent magnet assembly and can rotate in a non-tactile mode. Furthermore, the roller itself can still be pivotally mounted on a support to maintain rotational balance and structural stability.

[0004] According to an embodiment of the present invention, a roller module is provided, comprising a disc, a magnetic conductor, and an electro-permanent magnet assembly. The disc is rotatable along a rotation axis. The magnetic conductor is coaxially disposed with the disc and can rotate synchronously. The magnetic conductor includes a hub and a plurality of spokes, the spokes extending radially from the hub and arranged radially. The electro-permanent magnet assembly is disposed beside the magnetic conductor, and the magnetic conductor is located between the disc and the electro-permanent magnet assembly in an axial direction parallel to the rotation axis. The electro-permanent magnet assembly has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force axially to at least one of the spokes. When the electro-permanent magnet assembly is in the second operating state, the electro-permanent magnet assembly provides a second magnetic attraction force axially to at least one of the spokes, wherein the first magnetic attraction force is greater than the second magnetic attraction force.

[0005] In some embodiments of the present invention, the electro-permanent magnet assembly includes a first permanent magnet, a coil, a second permanent magnet, a third permanent magnet, a first magnetically conductive block, and a second magnetically conductive block. The first permanent magnet has a first magnetic end and a second magnetic end. The coil surrounds the first permanent magnet. The second permanent magnet has a third magnetic end and a fourth magnetic end. The third permanent magnet has a fifth magnetic end and a sixth magnetic end. The first magnetically conductive block magnetically couples the first and third magnetic ends. The second magnetically conductive block magnetically couples the second and sixth magnetic ends.

[0006] In some embodiments of the present invention, the first magnetic block includes a first connecting portion and a first protrusion. The first connecting portion connects the first magnetic end and the third magnetic end. The first protrusion protrudes axially from the first connecting portion toward the magnetic conductor, and the first protrusion is adjacent to at least one of the plurality of spokes.

[0007] In some embodiments of the present invention, the first protrusion has a plurality of first claw portions, each first claw portion being adjacent to one of a plurality of spokes.

[0008] In some embodiments of the present invention, a plurality of first claws are arranged in a planetary pattern around a rotation axis.

[0009] In some embodiments of the present invention, the second magnetic block includes a second connecting portion and a second protrusion. The second connecting portion connects the second magnetic end and the sixth magnetic end. The second protrusion protrudes axially from the second connecting portion toward the magnetic conductor, and the second protrusion is adjacent to at least one of the plurality of spokes.

[0010] In some embodiments of the present invention, the second protrusion has a plurality of second claw portions, each second claw portion being adjacent to one of the plurality of spokes.

[0011] In some embodiments of the present invention, a plurality of second claws are arranged in a planetary pattern around a rotation axis.

[0012] In some embodiments of the present invention, the first magnetic pole is the S pole, the second magnetic pole is the N pole, the third magnetic pole is the S pole, the fourth magnetic pole is the N pole, the fifth magnetic pole is the S pole, and the sixth magnetic pole is the N pole.

[0013] In some embodiments of the present invention, the first magnetic pole is the N pole, the second magnetic pole is the S pole, the third magnetic pole is the N pole, the fourth magnetic pole is the S pole, the fifth magnetic pole is the N pole, and the sixth magnetic pole is the S pole.

[0014] In some embodiments of the present invention, when the electro-permanent magnet assembly is in a first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in a second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

[0015] In some embodiments of the present invention, when the coil is energized, the electro-permanent magnet assembly switches from a first operating state to a second operating state.

[0016] In some embodiments of the present invention, the roller module further includes a magnetically coupled fourth and fifth magnetic poles.

[0017] In some embodiments of the present invention, the roulette wheel has a first side plate, a second side plate, a pivot portion and an outer plate portion, the first side plate and the second side plate are disposed opposite to each other, and the outer plate portion surrounds the periphery of the first side plate and the second side plate.

[0018] In some embodiments of the present invention, the roller module further includes a support seat, on which the wheel is pivotally mounted. The support seat includes a receiving groove, a first shaft hole and a second shaft hole, with a portion of the wheel being received in the receiving groove. The first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

[0019] In some embodiments of the present invention, the pivot part includes a first bushing that extends outward from the first side surface of the wheel. The roller module also includes a shaft that passes through the first bushing and has its two ends inserted into a first shaft hole and a second shaft hole, respectively. A magnetic conductor is sleeved on the first bushing or on the shaft.

[0020] In some embodiments of the present invention, the pivot portion has a second bushing extending outward from the second side surface of the wheel, and the shaft passes through the second bushing. The roller module also includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The magnetic turntable is sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic turntable rotates synchronously with the wheel.

[0021] In some embodiments of the present invention, the pivot portion has a first rotating shaft and a second rotating shaft. The first rotating shaft extends outward from a first side surface of the roulette wheel, and the second rotating shaft extends outward from a second side surface of the roulette wheel. The end of the first rotating shaft is inserted into a first shaft hole, and the end of the second rotating shaft is inserted into a second shaft hole. A magnetic conductor is sleeved on the first rotating shaft.

[0022] In some embodiments of the present invention, the roller module further includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The sensing chip is used to detect the rotation state of the magnetic turntable, which is sleeved on the second rotating shaft and rotates synchronously with the wheel.

[0023] According to another embodiment of the present invention, a roller module is provided, comprising a roller disk, a magnetic conductor, and an electro-permanent magnet assembly. The roller disk is rotatable along a rotation axis. The magnetic conductor is rotatable synchronously with the roller disk. The magnetic conductor includes a connecting disk and a plurality of extensions, which extend axially from the connecting disk and are distributed in a planetary pattern around the rotation axis. The electro-permanent magnet assembly is disposed beside the magnetic conductor, and the magnetic conductor is located between the roller disk and the electro-permanent magnet assembly in an axial direction parallel to the rotation axis. The electro-permanent magnet assembly has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, it provides a first magnetic attraction force axially to at least one of the plurality of extensions. When the electro-permanent magnet assembly is in the second operating state, it provides a second magnetic attraction force axially to at least one of the plurality of extensions. The first magnetic attraction force is greater than the second magnetic attraction force.

[0024] In some embodiments of the present invention, the electro-permanent magnet assembly includes a first permanent magnet, a coil, a second permanent magnet, a third permanent magnet, a first magnetically conductive block, and a second magnetically conductive block. The first permanent magnet has a first magnetic end and a second magnetic end. The coil surrounds the first permanent magnet. The second permanent magnet has a third magnetic end and a fourth magnetic end. The third permanent magnet has a fifth magnetic end and a sixth magnetic end. The first magnetically conductive block magnetically couples the first and third magnetic ends. The second magnetically conductive block magnetically couples the second and sixth magnetic ends.

[0025] In some embodiments of the present invention, the first magnetic block includes a first connecting portion and a first protrusion. The first connecting portion connects a first magnetic end and a third magnetic end. The first protrusion protrudes axially from the first connecting portion toward the magnetic body, and the first protrusion is adjacent to at least one of a plurality of extensions.

[0026] In some embodiments of the present invention, the first protrusion has a plurality of first claw portions, each first claw portion being adjacent to one of a plurality of extension portions.

[0027] In some embodiments of the present invention, a plurality of first claws are arranged in a planetary pattern around a rotation axis.

[0028] In some embodiments of the present invention, the second magnetic block includes a second connecting portion and a second protrusion. The second connecting portion connects the second magnetic end and the sixth magnetic end. The second protrusion protrudes axially from the second connecting portion toward the magnetic conductor, and the second protrusion is adjacent to at least one of the plurality of extensions.

[0029] In some embodiments of the present invention, the second protrusion has a plurality of second claw portions, each second claw portion being adjacent to one of a plurality of extension portions.

[0030] In some embodiments of the present invention, a plurality of second claws are arranged in a planetary pattern around a rotation axis.

[0031] In some embodiments of the present invention, the first magnetic pole is the S pole, the second magnetic pole is the N pole, the third magnetic pole is the S pole, the fourth magnetic pole is the N pole, the fifth magnetic pole is the S pole, and the sixth magnetic pole is the N pole.

[0032] In some embodiments of the present invention, the first magnetic pole is the N pole, the second magnetic pole is the S pole, the third magnetic pole is the N pole, the fourth magnetic pole is the S pole, the fifth magnetic pole is the N pole, and the sixth magnetic pole is the S pole.

[0033] In some embodiments of the present invention, when the electro-permanent magnet assembly is in a first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in a second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

[0034] In some embodiments of the present invention, when the coil is energized, the electro-permanent magnet assembly switches from a first operating state to a second operating state.

[0035] In some embodiments of the present invention, the roller module further includes a magnetic sheet, which magnetically couples a fourth magnetic end and a fifth magnetic end.

[0036] In some embodiments of the present invention, the wheel has a first side surface, a second side surface, a pivot portion, an outer disk portion, and a receiving groove. The first side surface and the second side surface are disposed opposite to each other, the outer disk portion surrounds the periphery of the first side surface and the second side surface, and the receiving groove is recessed from the first side surface toward the second side surface, with a magnetic conductor disposed in the receiving groove.

[0037] In some embodiments of the present invention, the roller module further includes a support seat, on which the wheel is pivotally mounted. The support seat includes a receiving groove, a first shaft hole and a second shaft hole, with a portion of the wheel being received in the receiving groove. The first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

[0038] In some embodiments of the present invention, the pivot part includes a first bushing that extends outward from the first side surface of the wheel. The roller module also includes a shaft that passes through the first bushing and has its two ends inserted into a first shaft hole and a second shaft hole, respectively. The magnetic conductor is sleeved on the first bushing, sleeved on the shaft, or fixed in the receiving groove.

[0039] In some embodiments of the present invention, the pivot portion has a second bushing extending outward from the second side surface of the wheel, and the shaft passes through the second bushing. The roller module also includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The magnetic turntable is sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic turntable rotates synchronously with the wheel.

[0040] In some embodiments of the present invention, the pivot portion has a first rotating shaft and a second rotating shaft. The first rotating shaft extends outward from the first side surface of the wheel, and the second rotating shaft extends outward from the second side surface of the wheel. The end of the first rotating shaft is inserted into the first shaft hole, and the end of the second rotating shaft is inserted into the second shaft hole. The magnetic conductor is sleeved on the first rotating shaft or fixed in the receiving groove.

[0041] In some embodiments of the present invention, the roller module further includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The sensing chip is used to detect the rotation state of the magnetic turntable, which is sleeved on the second rotating shaft and rotates synchronously with the wheel.

[0042] According to another embodiment of the present invention, a roller module is provided, comprising a roller disk and an electro-permanent magnet assembly. The roller disk is magnetically conductive. The roller disk is rotatable along a rotation axis. The roller disk has a first side surface, a second side surface, a pivot portion, an outer disk portion, and a plurality of extension portions. The first side surface and the second side surface are disposed opposite to each other. The outer disk portion surrounds the periphery of the first side surface and the second side surface. The plurality of extension portions extend axially from the first side surface or radially from the outer disk portion, and are distributed in a planetary pattern around the rotation axis. The electro-permanent magnet assembly is disposed beside the roller disk and has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force from an axial direction parallel to the rotation axis to at least one of the plurality of extension portions. When the electro-permanent magnet assembly is in the second operating state, the electro-permanent magnet assembly provides a second magnetic attraction force from an axial direction to at least one of the plurality of extension portions. The first magnetic attraction force is greater than the second magnetic attraction force.

[0043] In some embodiments of the present invention, the electro-permanent magnet assembly includes a first permanent magnet, a coil, a second permanent magnet, a third permanent magnet, a first magnetically conductive block, and a second magnetically conductive block. The first permanent magnet has a first magnetic end and a second magnetic end. The coil surrounds the first permanent magnet. The second permanent magnet has a third magnetic end and a fourth magnetic end. The third permanent magnet has a fifth magnetic end and a sixth magnetic end. The first magnetically conductive block magnetically couples the first and third magnetic ends. The second magnetically conductive block magnetically couples the second and sixth magnetic ends.

[0044] In some embodiments of the present invention, the first magnetic block includes a first connecting portion and a first protrusion. The first connecting portion connects a first magnetic end and a third magnetic end. The first protrusion protrudes axially from the first connecting portion toward the wheel, and the first protrusion is adjacent to at least one of a plurality of extensions.

[0045] In some embodiments of the present invention, the first protrusion has a plurality of first claw portions, each first claw portion being adjacent to one of a plurality of extension portions.

[0046] In some embodiments of the present invention, a plurality of first claws are arranged in a planetary pattern around a rotation axis.

[0047] In some embodiments of the present invention, the second magnetic block includes a second connecting portion and a second protrusion. The second connecting portion connects the second magnetic end and the sixth magnetic end. The second protrusion protrudes axially from the second connecting portion toward the wheel, and the second protrusion is adjacent to at least one of the plurality of extensions.

[0048] In some embodiments of the present invention, the second protrusion has a plurality of second claw portions, each second claw portion being adjacent to one of a plurality of extension portions.

[0049] In some embodiments of the present invention, a plurality of second claws are arranged in a planetary pattern around a rotation axis.

[0050] In some embodiments of the present invention, the first magnetic pole is the S pole, the second magnetic pole is the N pole, the third magnetic pole is the S pole, the fourth magnetic pole is the N pole, the fifth magnetic pole is the S pole, and the sixth magnetic pole is the N pole.

[0051] In some embodiments of the present invention, the first magnetic pole is the N pole, the second magnetic pole is the S pole, the third magnetic pole is the N pole, the fourth magnetic pole is the S pole, the fifth magnetic pole is the N pole, and the sixth magnetic pole is the S pole.

[0052] In some embodiments of the present invention, when the electro-permanent magnet assembly is in a first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in a second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

[0053] In some embodiments of the present invention, when the coil is energized, the electro-permanent magnet assembly switches from a first operating state to a second operating state.

[0054] In some embodiments of the present invention, the roller module further includes a magnetic sheet, which magnetically couples a fourth magnetic end and a fifth magnetic end.

[0055] In some embodiments of the present invention, the roller module further includes a support seat, on which the wheel is pivotally mounted. The support seat includes a receiving groove, a first shaft hole and a second shaft hole, with a portion of the wheel being received in the receiving groove. The first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

[0056] In some embodiments of the present invention, the pivot part includes a first bushing that extends outward from the first side surface of the wheel, and the roller module also includes a shaft that passes through the first bushing, with its two ends respectively inserted into a first shaft hole and a second shaft hole.

[0057] In some embodiments of the present invention, the wheel has a second bushing extending outward from the second side surface of the wheel, and the shaft passes through the second bushing. The roller module also includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The magnetic turntable is sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic turntable rotates synchronously with the wheel.

[0058] In some embodiments of the present invention, the roulette wheel has a first shaft and a second shaft, the first shaft extending outward from a first side surface of the roulette wheel, the second shaft extending outward from a second side surface of the roulette wheel, the end of the first shaft being inserted into a first shaft hole, and the end of the second shaft being inserted into a second shaft hole.

[0059] In some embodiments of the present invention, the roller module further includes a rotation sensor, which includes a magnetic turntable and a sensing chip. The sensing chip is used to detect the rotation state of the magnetic turntable, which is sleeved on the second rotating shaft and rotates synchronously with the wheel. Attached Figure Description

[0060] Figure 1 This is a perspective view of a scroll wheel module installed in a mouse according to the first embodiment of the present invention.

[0061] Figure 2 for Figure 1 The image shown is an exploded view of the mouse.

[0062] Figure 3 This is a perspective view of the roller module provided in the first embodiment.

[0063] Figure 4 for Figure 3 Exploded view of the roller module.

[0064] Figure 5 for Figure 3 An exploded view of the roller module from another perspective.

[0065] Figure 6 for Figure 3 A three-dimensional sectional view of the roller module.

[0066] Figure 7 for Figure 3 A three-dimensional sectional view of the roller module.

[0067] Figure 8 for Figure 7 A schematic diagram of the roller module in the first operating state of the electro-permanent magnet assembly.

[0068] Figure 9 for Figure 7 A schematic diagram of the roller module in the second operating state of the electro-permanent magnet assembly.

[0069] Figure 10 This is a three-dimensional cross-sectional view of the magnetic conductor and electro-permanent magnet assembly in the roller module provided in the first embodiment.

[0070] Figure 11 This is a perspective sectional view of a roller module provided in another embodiment of the present invention.

[0071] Figure 12 This is a perspective view of the roller module provided according to the second embodiment of the present invention.

[0072] Figure 13 for Figure 12 Exploded view of the roller module.

[0073] Figure 14 for Figure 12 An exploded view of the roller module from another perspective.

[0074] Figure 15 for Figure 12 A three-dimensional sectional view of the roller module.

[0075] Figure 16 for Figure 12 A three-dimensional sectional view of the roller module.

[0076] Figure 17 This is an exploded view of the roller module provided according to the third embodiment of the present invention.

[0077] Figure 18 This is a cross-sectional view of the roller module provided according to the third embodiment of the present invention.

[0078] Figure 19 This is an exploded view of the roller module provided according to the fourth embodiment of the present invention.

[0079] Figure 20 This is a cross-sectional view of the roller module provided according to the fourth embodiment of the present invention.

[0080] The attached figures are labeled as follows:

[0081] 1: Mouse

[0082] 10: Shell

[0083] 11: Upper shell

[0084] 111: Opening

[0085] 12: Lower shell

[0086] 13: Displacement sensing component

[0087] 14: Battery

[0088] 15: Switch key

[0089] 2: Roller Module

[0090] 21: Roulette

[0091] 211: Axis of Rotation

[0092] 212: First side panel

[0093] 213: Second side panel

[0094] 214: Pivot Section

[0095] 2141: First bushing

[0096] 2142: Second bushing

[0097] 2143: First pivot

[0098] 2144: Second pivot

[0099] 215: External Market Section

[0100] 216: Shaft

[0101] 217: Receiving slot

[0102] 2171:Wall

[0103] 218: Extension

[0104] 22: Magnetic conductor

[0105] 221: Wheel hub

[0106] 222: Banner

[0107] 223: Connecting disk

[0108] 224: Extension

[0109] 23: Electro-permanent magnet assembly

[0110] 231: The First Permanent Magnet

[0111] 2311: First magnetic pole

[0112] 2312: Second magnetic pole

[0113] 232: Coil

[0114] 233: Second permanent magnet

[0115] 2331: Third magnetic pole

[0116] 2332: Fourth magnetic pole

[0117] 234: The Third Permanent Magnet

[0118] 2341: Fifth Magnetic Pole

[0119] 2342: Sixth Magnetic Pole

[0120] 235: First magnetic block

[0121] 2351: First connecting part

[0122] 2352: First convex part

[0123] 23521: First claw

[0124] 236: Second magnetic block

[0125] 2361: Second connecting part

[0126] 2362: Second convex part

[0127] 23621: Second claw

[0128] 237: Stent

[0129] 2371: Central containment slot

[0130] 2372: First Slot

[0131] 23721: First perforation

[0132] 2373: Second Slot

[0133] 23731: Second perforation

[0134] 2374: Positioning rod

[0135] 2375: Second shaft hole

[0136] 238: Magnetic Conductor Sheet

[0137] 24: Support base

[0138] 241: Receiving slot

[0139] 242: First shaft hole

[0140] 243: Second shaft hole

[0141] 244: Platform

[0142] 2441: Positioning hole

[0143] 25: Rotation sensor

[0144] 251: Magnetic turntable

[0145] 252: Sensing chip

[0146] 26: Spacer

[0147] 3: Magnetic field lines

[0148] 4: Magnetic field lines

[0149] 5: Direction of the first current

[0150] 6: Direction of the second current Detailed Implementation

[0151] The following detailed description provides examples of embodiments. These embodiments are merely illustrative and do not limit the scope of protection intended by the present invention. Furthermore, unnecessary elements or elements that can be implemented using ordinary techniques are omitted from the accompanying drawings in the embodiments to highlight the technical features of the present invention.

[0152] Please refer to Figures 1 to 10 According to a first embodiment of the present invention, a scroll wheel module is provided. This scroll wheel module can be installed in a human-machine interface device, such as an input device like a mouse or keyboard, or in a control device like a live broadcast controller or a broadcast director. In this embodiment, it is illustrated by installation within a mouse, but the present invention is not limited thereto.

[0153] The mouse 1 includes a housing 10, which includes an upper housing 11, a lower housing 12, a displacement sensing component 13, and a battery 14. The upper housing 11 has an opening 111 to expose a portion of the scroll wheel module, such as the scroll wheel disc, for user touch operation. The displacement sensing component 13 includes XY axis displacement sensors and a circuit board, etc.

[0154] The roller module 2 includes a wheel 21, a magnetic conductor 22, an electro-permanent magnet assembly 23, a support base 24, and a rotation sensor 25. The support base 24 includes a receiving groove 241, a first shaft hole 242, a second shaft hole 243, and a platform 244, wherein the first shaft hole 242 and the second shaft hole 243 are located on opposite sides of the receiving groove 241, and the platform 244 is disposed next to the second shaft hole 243, extending outward from a direction away from the first shaft hole 242. The platform 244 is provided with at least one positioning hole 2441.

[0155] The wheel 21 is pivotally mounted on the support 24, and a portion of the wheel 21 is housed within the receiving groove 241. The wheel 21 is rotatable along a rotation axis 211, which, in the following description, is described axially as parallel to the rotation axis 211 and radially as perpendicular to it. The wheel 21 has a first side surface 212, a second side surface 213, a pivot portion 214, an outer surface portion 215, and a shaft 216. The first side surface 212 and the second side surface 213 are arranged opposite each other, and the outer surface portion 215 surrounds the periphery of the first side surface 212 and the second side surface 213. When the user operates the wheel module 2, their fingers touch the outer surface portion 215. Furthermore, an anti-slip ring may be added to or covered the outer surface portion 215, and this anti-slip ring will be touched by the user's fingers, thereby providing the user with another tactile feel.

[0156] In this embodiment, the pivot portion 214 of the wheel 21 includes a first bushing 2141 and a second bushing 2142. The first bushing 2141 extends outward from the first side surface 212 of the wheel 21, while the second bushing 2142 extends outward from the second side surface 213 of the wheel 21. A shaft 216 passes through and is fixed within the first bushing 2141 and the second bushing 2142, with both ends of the shaft 216 inserted into the first shaft hole 242 and the second shaft hole 243 of the support seat 24, allowing the wheel 21 to be pivotally mounted on the support seat 24. Furthermore, a magnetic conductor 22 is sleeved and fixed on the first bushing 2141, allowing the magnetic conductor 22 to rotate synchronously with the wheel 21. In other embodiments according to the present invention, the magnetic conductor 22 can also be sleeved and fixed on the shaft 216, which similarly allows the magnetic conductor 22 to rotate synchronously with the wheel 21.

[0157] In this embodiment, the rotation sensor 25 includes a magnetic disk 251 and a sensing chip 252. The magnetic disk 251 is divided into at least one N-pole region and one S-pole region, and the sensing chip 252 can be selected from Hall effect ICs. The magnetic disk is sleeved and fixed to the outside of the second bushing 2142, allowing the magnetic disk 251 and the wheel 21 to rotate synchronously, and enabling the sensing chip 252 to detect the rotation state of the wheel 21. In other embodiments of the present invention, the magnetic disk 251 can also be installed inside the second bushing 2142, or sleeved and fixed to the shaft 216, both of which allow the magnetic disk 251 and the wheel 21 to rotate synchronously, thereby enabling the sensing chip 252 to detect the rotation state of the magnetic disk 251 and the wheel 21.

[0158] In this embodiment, the magnetic conductor 22 and the magnetic turntable 251 of the rotation sensor 25 are respectively sleeved on the first bushing 2141 and the second bushing 2142 of the wheel 21, thus making the rotation balance of the wheel 21 more stable. Moreover, since the wheel 21 is stably pivoted on the support seat 24 through the first bushing 2141, the second bushing 2142 and the shaft 216, the durability of the wheel 21 can still be maintained and will not be affected by the presence of the electro-permanent magnet assembly 23.

[0159] In this embodiment, the magnetic conductor 22 and the wheel 21 are coaxially arranged and can rotate synchronously. The magnetic conductor 22 includes a hub 221 and a plurality of spokes 222, which extend radially from the hub 221 and are arranged in a radial pattern. In addition, a spacer 26, such as a washer, can be provided between the magnetic conductor 22 and the wheel 21, so that the axial distance between the magnetic conductor 22 and the wheel 21, or between the magnetic conductor 22 and the electro-permanent magnet assembly 23, can be adjusted as needed.

[0160] An electro-permanent magnet assembly 23 is disposed beside a magnetic conductor 22, which is located between the wheel 21 and the electro-permanent magnet assembly 23 along an axial direction parallel to the rotation axis 211. The electro-permanent magnet assembly 23 has a first operating state and a second operating state. When the electro-permanent magnet assembly 23 is in the first operating state, it provides a first magnetic attraction force axially to at least one of the plurality of spokes 222. When the electro-permanent magnet assembly 23 is in the second operating state, it provides a second magnetic attraction force axially to at least one of the plurality of spokes 222, and the first magnetic attraction force is greater than the second magnetic attraction force. Furthermore, in this invention, regardless of whether the wheel 21 is pivotally mounted on the support seat 24 via the first bushing 2141, the second bushing 2142, and the shaft 216, or whether the wheel 21 is pivotally mounted on the support seat 24 via its own first rotating shaft 2143 and second rotating shaft 2144, the wheel 21 still maintains a complete and stable rotational structure. It does not require increasing the size of the wheel 21 or reserving a large internal space to accommodate the electro-permanent magnet assembly 23 based on the configuration of the electro-permanent magnet assembly 23. This is also the benefit and advantage of the present application that allows the electro-permanent magnet assembly 23 to provide rotational resistance to the wheel 21 from the axial direction.

[0161] The electro-permanent magnet assembly 23 includes a first permanent magnet 231, a coil 232, a second permanent magnet 233, a third permanent magnet 234, a first magnetically conductive block 235, a second magnetically conductive block 236, and a support 237. The first permanent magnet 231 has a first magnetic end 2311 and a second magnetic end 2312. The coil 232 surrounds the first permanent magnet 231. Whenever the coil 232 is energized, the electro-permanent magnet assembly 23 switches from a first operating state to a second operating state, or vice versa. The second permanent magnet 233 has a third magnetic end 2331 and a fourth magnetic end 2332, and the third permanent magnet 234 has a fifth magnetic end 2341 and a sixth magnetic end 2342.

[0162] The first magnetically conductive block 235 magnetically couples the first magnetic end 2311 of the first permanent magnet 231 and the third magnetic end 2331 of the second permanent magnet 233. The first magnetically conductive block 235 includes a first connecting portion 2351 and a first protrusion 2352. The first connecting portion 2351 connects the first magnetic end 2311 and the third magnetic end 2331, while the first protrusion 2352 protrudes axially from the first connecting portion 2351 toward the magnetically conductive body 22, and is adjacent to at least one of the plurality of spokes 222. In this embodiment, the first protrusion 2352 has a plurality of first claw portions 23521, which are arranged in a planetary pattern around the rotation axis 211. Each first claw portion 23521 is as follows: Figure 10 The image shows one of the adjacent stripes 222.

[0163] The second magnetically conductive block 236 magnetically couples the second magnetic end 2312 of the first permanent magnet 231 and the sixth magnetic end 2342 of the third permanent magnet 234. The second magnetically conductive block 236 includes a second connecting portion 2361 and a second protrusion 2362. The second connecting portion 2361 connects the second magnetic end 2312 and the sixth magnetic end 2342, while the second protrusion 2362 protrudes axially from the second connecting portion 2361 toward the magnetic conductor 22, and is adjacent to at least one of the plurality of spokes 222. In this embodiment, the second protrusion 2362 has a plurality of second claw portions 23621, which are arranged in a planetary pattern around the rotation axis 211. Each second claw portion 23621 is as follows: Figure 10 The image shows one of the adjacent stripes 222.

[0164] In the roller module 2 provided in this embodiment, both the first protrusion 2352 and the second protrusion 2362 are provided as an example. However, in other specific embodiments according to the present invention, only the first protrusion 2352 or the second protrusion 2362 may be provided, and both can be implemented according to the present invention. In addition, in the roller module 2 provided in the first embodiment, a magnetic conductive sheet 238 may be additionally provided to magnetically couple the fourth magnetic end 2232 of the second permanent magnet 233 and the fifth magnetic end 2341 of the third permanent magnet 234. The magnetic conductive sheet 238 may be selected from an iron sheet.

[0165] In the first embodiment, when the electro-permanent magnet assembly 23 is in the first operating state, the first magnetic end 2311 of the first permanent magnet 231, the third magnetic end 2331 of the second permanent magnet 233, and the fifth magnetic end 2341 of the third permanent magnet 234 have the same polarity. At this time, the magnetic lines of force 3 generated by the electro-permanent magnet assembly 23 will be transmitted to the magnetic conductor 22 via the first magnetic guide block 235 or the second magnetic guide block 236. At this time, the first magnetic guide block 235 or the second magnetic guide block 236 of the electro-permanent magnet assembly 23 will provide a first magnetic attraction force from the axial direction to at least one of the multiple spokes 222 of the magnetic conductor 22. When the electro-permanent magnet assembly 23 is in the first operating state, if the wheel 21 rotates, multiple spokes 222 will sequentially approach and move away from the first magnetic block 235 or the second magnetic block 236. During this process, the wheel 21, which is connected to the magnetic body 22, will receive rotational resistance (or strong and weak intermittent magnetic attraction) from the axial direction, thereby allowing the user's fingers to feel a tactile or punctual sensation. In other words, the rotating wheel 21 will be in a tactile or punctual sensation mode at this time.

[0166] In the roller module 2 provided by the present invention, the electro-permanent magnet assembly 23 provides rotational resistance to the disc 21 and the magnetic conductor 22 in the axial direction. Since the first magnetic block 235 or the second magnetic block 236 and the multiple spokes 222 of the magnetic conductor 22 have similar dimensions and arrangement in the axial direction, compared with the design that provides rotational resistance in the radial direction, the electro-permanent magnet assembly 23 of the roller module 2 provided by the present invention can produce a stronger tactile feedback to the disc 21 or the magnetic conductor 22 in the tactile feedback mode. If different applications or different models require different levels of tactile feedback, this can be achieved by adjusting the axial distance between the electro-permanent magnet assembly 23 and the spokes 222 of the magnetic conductor 22. Axial adjustment has the least impact on other components within the roller module 2 and is easier to achieve. For example, simply replacing the first protrusion 2352 or the second protrusion 2362 with different lengths, or replacing the first slot 2372 or the second slot 2373 with different depths, or adjusting the thickness of the spacer 26, etc., can all be implemented according to this invention.

[0167] When the electro-permanent magnet assembly 23 is in the second operating state, the magnetic poles of the two magnetic ends of the first permanent magnet 231 will be reversed, so that the polarities of the second magnetic end 2312 of the first permanent magnet 231, the third magnetic end 2331 of the second permanent magnet 233, and the fifth magnetic end 2341 of the third permanent magnet 234 are the same. At this time, most of the magnetic lines of force 4 generated by the electro-permanent magnet assembly 23 will only circulate internally. When the first magnetic block 235 or the second magnetic block 236 provides the second magnetic attraction force from the axial direction to at least one of the multiple spokes 222 of the magnetic conductor 22, the second magnetic attraction force is already less than the first magnetic attraction force, or the second magnetic attraction force is close to zero. Therefore, when the wheel 21 rotates, it will only receive a very small rotational resistance from the axial direction. The user's fingers cannot feel a clear sense of tactile bumps or jolts. At this time, the wheel 21 is in non-tactile mode, flywheel mode, or smooth mode. As long as the wheel 21 is rotated, it will continue to rotate for a period of time before stopping.

[0168] In this embodiment, the mechanism for switching the electro-permanent magnet assembly 23 from the first operating state to the second operating state, or from the second operating state to the first operating state, is achieved by energizing the coil 232 to change the magnetic pole distribution of the first permanent magnet 231. Furthermore, the direction of the current is reversed each time the coil is energized, thus allowing the first permanent magnet 231 to have different magnetic pole configurations. This enables the electro-permanent magnet assembly 23 to sequentially switch between the first and second operating states. In addition, in this embodiment, the first permanent magnet is a low-coercivity magnet, and the magnetic pole configuration can be changed by using a coil 232 wound around the first permanent magnet and driven with different current directions.

[0169] Furthermore, the present invention can switch the operating mode of the electro-permanent magnet component 23 by setting a switch button 15 on the mouse 1 for the user to trigger. Alternatively, the operating mode can be automatically switched based on the detection results of the rotation sensor 25. For example, when the rotation sensor 25 detects that the user is rapidly and continuously rotating the wheel 21 for a short period of time, or when the rotation speed of the wheel 21 has reached a preset upper limit value, the scroll wheel module 2 will switch the electro-permanent magnet component 23 from the first operating mode to the second operating mode. Conversely, if the above-mentioned behavior or conditions have disappeared, the scroll wheel module 2 will switch the electro-permanent magnet component 23 back from the second operating mode to the first operating mode. Moreover, the battery 14 inside the mouse can provide power to switch the operating mode of the electro-permanent magnet component 23.

[0170] For example, in this embodiment, when the electro-permanent magnet assembly 23 needs to be in the first operating state so that the wheel 21 can rotate in a step-sensitive mode, it can be done as follows: Figure 8As shown, after driving the coil 232 with a first current direction 5, the first magnetic end 2311 of the first permanent magnet 231 is the S end and the second magnetic end is the N end. At this time, the third magnetic end 2331 of the second permanent magnet 233 is arranged as the S end and the fourth magnetic end 2332 is arranged as the N end; the fifth magnetic end 2341 of the third permanent magnet 234 is arranged as the S end and the sixth magnetic end 2342 is arranged as the N end. When it is necessary to switch the electro-permanent magnet assembly 23 to the second operating state so that the wheel 21 can rotate in a non-segmented mode, it can be done as follows. Figure 9 As shown, after driving coil 232 with a second current direction 6, the first magnetic end 2311 of the first permanent magnet 231 becomes the N end and the second magnetic end becomes the S end. At this time, the third magnetic end 2331 of the second permanent magnet 233 remains the S end and the fourth magnetic end 2332 remains the N end; the fifth magnetic end 2341 of the third permanent magnet 234 remains the S end and the sixth magnetic end 2342 remains the N end.

[0171] Similarly, in other embodiments of the present invention, when the electro-permanent magnet assembly 23 is required to be in a first operating state so that the wheel 21 can rotate in a segmented mode, the first magnetic end 2311 can be arranged as the N end, the second magnetic end 2312 as the S end, the third magnetic end 2331 as the N end, the fourth magnetic end 2332 as the S end, the fifth magnetic end 2341 as the N end, and the sixth magnetic end 2342 as the S end; while when the electro-permanent magnet assembly 23 is required to be in a second operating state so that the wheel 21 can rotate in a non-segmented mode, the first magnetic end 2311 can be arranged as the S end, the second magnetic end 2312 as the N end, the third magnetic end 2331 as the N end, the fourth magnetic end 2332 as the S end, the fifth magnetic end 2341 as the N end, and the sixth magnetic end 2342 as the S end.

[0172] In this embodiment, the bracket 237 is used to fix the first permanent magnet 231, coil 232, second permanent magnet 233, third permanent magnet 234, first magnetic guide block 235, second magnetic guide block 236, and magnetic guide sheet 238. Furthermore, the bracket 237 is fixed to the support base 24 to ensure that the first magnetic guide block 235 and the second magnetic guide block 236 can maintain a fixed axial distance from the spokes 222 of the magnetic conductor 22. The bracket 237 has a central receiving groove 2371, a first slot 2372, a second slot 2373, and at least one positioning rod 2374. The positioning rod 2374 is located below the central receiving groove 2371 and corresponds to the positioning hole 2441 on the platform 244. Therefore, when the positioning rod 2374 is inserted into the positioning hole 2441, the bracket 237 can be fixed and assembled onto the support base 24.

[0173] The central receiving groove 2371 of the bracket 237 is used to receive the first permanent magnet 231, and the coil 232 is wound around the central receiving groove 2371 and surrounds the first permanent magnet 231. The first slot 2372 and the second slot 2373 are located at opposite ends of the central receiving groove 2371.

[0174] The first slot 2372 has at least one first through hole 23721. When the first magnetic block 235 is installed in the first slot 2372, the first connecting portion 2351 of the first magnetic block 235 will be locked outside the first through hole 23721 and cannot pass through, while the first protrusion 2352 of the first magnetic block 235 will be inserted into the first through hole 23721, or pass through the first through hole 23721 and protrude outside the first through hole 23721. In this way, compared with the first permanent magnet 231, the second permanent magnet 233, or the third permanent magnet 234, the first protrusion 2352 of the first magnetic block 235 can be closer to the magnetic conductor 22 and its spokes 222 in the axial direction. Furthermore, in this embodiment, the number and arrangement of the first through holes 23721 of the first slot 2372 correspond to the first claw portions 23521 of the first protrusion 2352 of the first magnetic block 235. Therefore, when the number of the first claw portions 23521 is multiple and they are arranged in a planetary pattern around the rotation axis 211, the multiple first through holes 23721 are also arranged in a planetary pattern around the rotation axis 211. In other specific embodiments according to the present invention, the first through holes 23721 of the first slot 2372 can also be arranged to have a large space to allow multiple first claw portions 23521 to be inserted or pass through simultaneously, as long as the first connecting portion 2351 of the first magnetic block 235 is not allowed to pass through.

[0175] Similarly, the second slot 2373 has at least one second through hole 23731. When the second magnetic block 236 is installed in the second slot 2373, the second connecting portion 2361 of the second magnetic block 236 will be locked outside the second through hole 23731 and cannot pass through, while the second protrusion 2362 of the second magnetic block 236 will be inserted into the second through hole 23731, or pass through the second through hole 23731 and protrude outside the second through hole 23731. In this way, compared with the first permanent magnet 231, the second permanent magnet 233, or the third permanent magnet 234, the second protrusion 2362 of the second magnetic block 236 will be closer to the magnetic conductor 22 and its spokes 222 in the axial direction. Furthermore, in this embodiment, the number and arrangement of the second through holes 23731 of the second slot 2373 correspond to the second claw portions 23621 of the second protrusion 2362 of the second magnetic block 236. Therefore, when the number of second claw portions 23621 is multiple and they are arranged in a planetary pattern around the rotation axis 211, the multiple second through holes 23731 are also arranged in a planetary pattern around the rotation axis 211. In other specific embodiments according to the present invention, the second through holes 23731 of the second slot 2373 can also be arranged to have a large space to allow multiple second claw portions 23621 to be inserted or pass through simultaneously, as long as the second connecting portion 2361 of the second magnetic block 236 is not allowed to pass through.

[0176] In the wheel 21 provided in the first embodiment, the wheel 21 is pivotally mounted on the support seat 24 via a first bushing 2141, a second bushing 2142, and a shaft 216. In other embodiments according to the present invention, it may also be as follows... Figure 11 As shown, the original first bushing 2141 and shaft 216 are integrated into a first rotating shaft 2143, and the second bushing 2142 and shaft 216 are integrated into a second rotating shaft 2144, so that the wheel 21 has the structure of the first rotating shaft 2143 and the second rotating shaft 2144. The first rotating shaft 2143 can extend outward from the first side surface 212 of the wheel 21, and the second rotating shaft 2144 can extend outward from the second side surface 213 of the wheel 21. Finally, the end of the first rotating shaft 2143 is placed into the first shaft hole 242 of the bearing seat 24, and the end of the second rotating shaft 2144 is placed into the second shaft hole 243 of the bearing seat 24. When the wheel 21 has a first rotating shaft 2143 and a second rotating shaft 2144, the magnetic conductor 22 will be sleeved and fixed on the first rotating shaft 2143, and the magnetic turntable 251 of the rotation sensor 25 will be sleeved and fixed on the second rotating shaft 2144, so that the magnetic turntable 251 and the wheel 21 rotate synchronously, thereby allowing the sensing chip 252 to detect the rotation state of the magnetic turntable 251 and the wheel 21.

[0177] Please refer to Figures 12 to 16According to a second embodiment of the present invention, a roller module 2 is provided. The main difference between the second embodiment and the first embodiment is that the electro-permanent magnet assembly 23 is placed inside the support base 24, and the second shaft hole 243, which was originally formed on the support base 24 in the first embodiment, is changed to be formed on the bracket 237 of the electro-permanent magnet assembly 23. Other structures and operating methods of the roller module 2 can follow the architecture of the first embodiment and will not be described in detail here.

[0178] In the roller module 2 provided in the second embodiment, a first shaft hole 242 is provided on the receiving groove 241 of the support seat 24. The receiving groove 241 extends outward from the side opposite to the first shaft hole 242 in a direction away from the first shaft hole 242 to form a platform 244, and a positioning hole 2441 is formed on the platform 244. Correspondingly, a second shaft hole 2375 is formed on the bracket 237 of the electro-permanent magnet assembly 23, and a positioning rod 2374 is also provided below the bracket 237. Therefore, when the positioning rod 2374 of the bracket 237 is inserted into the positioning hole 2441 on the platform 244, the electro-permanent magnet assembly 23 will be assembled and fixed together with the support seat 24. At this time, the first shaft hole 242 and the second shaft hole 2375 of the bracket 237 will be located on opposite sides of the receiving groove 241 for the wheel 21 to pivot.

[0179] Please refer to Figures 17 to 18 According to a third embodiment of the present invention, a roller module 2 is provided. The main difference between the third embodiment and the first and second embodiments is that the magnetic conductor 22 is fitted onto the wheel 21. In addition to adopting the structural shape of the first and second embodiments, the magnetic conductor 22 provided in this embodiment can also have different structural shape variations as in this embodiment. Other structures and operating methods of the roller module adopted in the third embodiment can follow the architecture of the first or second embodiments and will not be described again.

[0180] In the roller module 2 provided in the third embodiment, the wheel 21 has a receiving groove 217, which is recessed from the first side surface 212 toward the second side surface 213 to accommodate the magnetic conductor 22. The magnetic conductor 22 is disposed in the receiving groove 217 and can rotate synchronously with the wheel 21. The magnetic conductor 22 includes a connecting plate 223 and a plurality of extensions 224, which extend axially from the connecting plate 223. The plurality of extensions 224 are distributed in a planetary pattern around the rotation axis 211 of the wheel 21. The electro-permanent magnet assembly 23 is disposed next to the magnetic conductor, that is, in the axial direction parallel to the rotation axis 211, and the magnetic conductor 22 is located between the wheel 21 and the electro-permanent magnet assembly 23. The electro-permanent magnet assembly 23 has a first operating state and a second operating state. When the electro-permanent magnet assembly 23 is in the first operating state, the electro-permanent magnet assembly 23 provides a first magnetic attraction force from the axial direction to at least one of the plurality of extensions 224. When the electro-permanent magnet assembly 23 is in the second operating state, the electro-permanent magnet assembly 23 provides a second magnetic attraction force from the axial direction to at least one of the plurality of extensions 224, and the first magnetic attraction force is greater than the second magnetic attraction force.

[0181] Furthermore, in the roller module 2 provided in the third embodiment, the magnetic conductor 22 can be as follows: Figure 18 The device is shown to be sleeved on the first bushing 2141, or it can be fixed on the wall 2171 of the receiving groove 217 without contacting the first bushing 2141. This invention does not limit this.

[0182] Please refer to Figures 19 to 20 According to a fourth embodiment of the present invention, a roller module 2 is provided. The main difference between the fourth embodiment and the aforementioned first, second, and third embodiments is that the magnetic conductor that can interact with the electro-permanent magnet assembly 23 is directly formed on the wheel 21 itself. Other aspects of the roller module's structure and operation can follow the architecture of the first, second, and third embodiments and will not be described again. Furthermore, in the first, second, and third embodiments, the wheel 21 itself may be selected to be magnetically conductive or not, depending on product or structural requirements. However, in the roller module 2 provided in the fourth embodiment, the wheel 21 itself is a magnetic conductor and therefore has magnetic properties.

[0183] In the roller module 2 provided in the fourth embodiment, the wheel 21 is magnetically conductive and can rotate along the rotation axis 211. The wheel 21 has a first side surface 212, a second side surface 213, a pivot portion 214, an outer disk portion 215, and a plurality of extension portions 218. The first side surface 212 and the second side surface 213 are disposed opposite to each other, and the outer disk portion 215 surrounds the periphery of the first side surface 212 and the second side surface 213. The plurality of extension portions 218 can be arranged as follows: Figure 20As shown, the wheel extends axially from the first side disk 212. In other embodiments of the invention, the multiple extensions 218 may also extend radially inward from the outer disk portion 215. The multiple extensions 218 are distributed in a planetary pattern around the rotation axis 211. An electro-permanent magnet assembly 23 is disposed beside the wheel 21. The electro-permanent magnet assembly 23 has a first operating state and a second operating state. When the electro-permanent magnet assembly 23 is in the first operating state, it provides a first magnetic attraction force from an axial direction parallel to the rotation axis 211 to at least one of the multiple extensions 218. When the electro-permanent magnet assembly 23 is in the second operating state, it provides a second magnetic attraction force from an axial direction to at least one of the multiple extensions 218. The first magnetic attraction force is greater than the second magnetic attraction force.

[0184] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit disclosed in the present invention should be included in the inventive concept of the present invention.

Claims

1. A roller module, comprising: A wheel that can rotate along an axis of rotation; A magnetic conductor, coaxially arranged with the wheel and capable of rotating synchronously, the magnetic conductor including a hub and a plurality of spokes extending radially from the hub and arranged in a radial pattern; and An electro-permanent magnet assembly is disposed beside the magnetic conductor. In an axial direction parallel to the rotation axis, the magnetic conductor is located between the wheel and the electro-permanent magnet assembly. The electro-permanent magnet assembly has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force from the axial direction to at least one of the plurality of spokes. When the electro-permanent magnet assembly is in the second operating state, the electro-permanent magnet assembly provides a second magnetic attraction force from the axial direction to at least one of the plurality of spokes. The first magnetic attraction force is greater than the second magnetic attraction force.

2. The roller module as claimed in claim 1, wherein the electro-permanent magnet assembly comprises: A first permanent magnet having a first magnetic end and a second magnetic end; A coil is wound around the first permanent magnet; A second permanent magnet having a third magnetic end and a fourth magnetic end; A third permanent magnet having a fifth magnetic end and a sixth magnetic end; A first magnetically conductive block, magnetically coupled to the first magnetic end and the third magnetic end; and A second magnetically conductive block magnetically couples the second magnetic end and the sixth magnetic end.

3. The roller module as claimed in claim 2, wherein the first magnetic block includes a first connecting portion and a first protrusion, the first connecting portion connecting the first magnetic end and the third magnetic end, the first protrusion protruding axially from the first connecting portion toward the magnetic conductor, and the first protrusion being adjacent to at least one of the plurality of spokes.

4. The roller module as claimed in claim 3, wherein the first protrusion has a plurality of first claw portions, each of the first claw portions being adjacent to one of the plurality of spokes.

5. The roller module as claimed in claim 4, wherein the plurality of first claws are arranged in a planetary pattern around the axis of rotation.

6. The roller module as claimed in claim 3, wherein the second magnetic block includes a second connecting portion and a second protrusion, the second connecting portion connecting the second magnetic end and the sixth magnetic end, the second protrusion protruding axially from the second connecting portion toward the magnetic conductor, and the second protrusion being adjacent to at least one of the plurality of spokes.

7. The roller module as claimed in claim 6, wherein the second protrusion has a plurality of second claw portions, each of the second claw portions being adjacent to one of the plurality of spokes.

8. The roller module as claimed in claim 7, wherein the plurality of second claws are arranged in a planetary pattern around the axis of rotation.

9. The roller module as described in claim 2, wherein the first magnetic end is an S end, the second magnetic end is an N end, the third magnetic end is an S end, the fourth magnetic end is an N end, the fifth magnetic end is an S end, and the sixth magnetic end is an N end.

10. The roller module as described in claim 2, wherein the first magnetic pole is an N pole, the second magnetic pole is an S pole, the third magnetic pole is an N pole, the fourth magnetic pole is an S pole, the fifth magnetic pole is an N pole, and the sixth magnetic pole is an S pole.

11. The roller module as claimed in claim 2, wherein when the electro-permanent magnet assembly is in the first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in the second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

12. The roller module as described in claim 11, wherein when the coil is energized, the electro-permanent magnet assembly switches from the first operating state to the second operating state.

13. The roller module as claimed in claim 2 further includes a magnetic sheet magnetically coupling the fourth magnetic end and the fifth magnetic end.

14. The roller module as claimed in claim 1, wherein the roller has a first side plate, a second side plate, a pivot portion and an outer plate portion, the first side plate and the second side plate are disposed opposite to each other, and the outer plate portion surrounds the periphery of the first side plate and the second side plate.

15. The roller module of claim 14 further includes a support base, the wheel is pivotally mounted on the support base, the support base includes a receiving groove, a first shaft hole and a second shaft hole, a portion of the wheel is received in the receiving groove, and the first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

16. The roller module as claimed in claim 15, wherein the pivot portion includes a first bushing extending outward from a first side surface of the wheel, the roller module further includes a shaft passing through the first bushing, the two ends of the shaft being respectively inserted into the first shaft hole and the second shaft hole, and the magnetic conductor being sleeved on the first bushing or the shaft.

17. The roller module of claim 16, wherein the pivot portion has a second bushing extending outward from the second side surface of the wheel, the shaft passing through the second bushing, and the roller module further includes a rotation sensor comprising a magnetic disk and a sensing chip, the magnetic disk being sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic disk rotating synchronously with the wheel.

18. The roller module as claimed in claim 15, wherein the pivot portion has a first rotating shaft and a second rotating shaft, the first rotating shaft extending outward from a first side surface of the wheel, the second rotating shaft extending outward from a second side surface of the wheel, the end of the first rotating shaft being inserted into the first shaft hole, the end of the second rotating shaft being inserted into the second shaft hole, and the magnetic conductor being sleeved on the first rotating shaft.

19. The roller module of claim 18 further includes a rotation sensor, the rotation sensor including a magnetic turntable and a sensing chip, the sensing chip being used to detect the rotation state of the magnetic turntable, the magnetic turntable being sleeved on the second rotating shaft and rotating synchronously with the wheel.

20. A roller module, comprising: A wheel that can rotate along an axis of rotation; A magnetic conductor that can rotate synchronously with the wheel. The magnetic conductor includes a connecting disk and multiple extensions. The multiple extensions extend axially from the connecting disk and are distributed in a planetary pattern around the axis of rotation. as well as An electro-permanent magnet assembly is disposed beside the magnetic conductor. In an axial direction parallel to the rotation axis, the magnetic conductor is located between the wheel and the electro-permanent magnet assembly. The electro-permanent magnet assembly has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force from the axial direction to at least one of the plurality of extensions. When the electro-permanent magnet assembly is in the second operating state, the electro-permanent magnet assembly provides a second magnetic attraction force from the axial direction to at least one of the plurality of extensions. The first magnetic attraction force is greater than the second magnetic attraction force.

21. The roller module of claim 20, wherein the electro-permanent magnet assembly comprises: A first permanent magnet having a first magnetic end and a second magnetic end; A coil is wound around the first permanent magnet; A second permanent magnet having a third magnetic end and a fourth magnetic end; A third permanent magnet having a fifth magnetic end and a sixth magnetic end; A first magnetically conductive block, magnetically coupled to the first magnetic end and the third magnetic end; and A second magnetically conductive block magnetically couples the second magnetic end and the sixth magnetic end.

22. The roller module of claim 21, wherein the first magnetic block includes a first connecting portion and a first protrusion, the first connecting portion connecting the first magnetic end and the third magnetic end, the first protrusion protruding axially from the first connecting portion toward the magnetic conductor, and the first protrusion being adjacent to at least one of the plurality of extensions.

23. The roller module of claim 22, wherein the first protrusion has a plurality of first claw portions, each of the first claw portions being adjacent to one of the plurality of extension portions.

24. The roller module of claim 23, wherein the plurality of first claws are arranged in a planetary pattern around the axis of rotation.

25. The roller module of claim 22, wherein the second magnetic block includes a second connecting portion and a second protrusion, the second connecting portion connecting the second magnetic end and the sixth magnetic end, the second protrusion protruding axially from the second connecting portion toward the magnetic conductor, and the second protrusion being adjacent to at least one of the plurality of extensions.

26. The roller module of claim 25, wherein the second protrusion has a plurality of second claw portions, each of the second claw portions being adjacent to one of the plurality of extension portions.

27. The roller module of claim 26, wherein the plurality of second claws are arranged in a planetary pattern around the axis of rotation.

28. The roller module as claimed in claim 21, wherein the first magnetic end is an S end, the second magnetic end is an N end, the third magnetic end is an S end, the fourth magnetic end is an N end, the fifth magnetic end is an S end, and the sixth magnetic end is an N end.

29. The roller module as claimed in claim 21, wherein the first magnetic end is an N end, the second magnetic end is an S end, the third magnetic end is an N end, the fourth magnetic end is an S end, the fifth magnetic end is an N end, and the sixth magnetic end is an S end.

30. The roller module as claimed in claim 21, wherein when the electro-permanent magnet assembly is in the first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in the second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

31. The roller module as described in claim 30, wherein when the coil is energized, the electro-permanent magnet assembly switches from the first operating state to the second operating state.

32. The roller module as claimed in claim 21 further includes a magnetic sheet magnetically coupling the fourth magnetic end and the fifth magnetic end.

33. The roller module as claimed in claim 20, wherein the roller has a first side plate, a second side plate, a pivot portion, an outer plate portion and a receiving groove, the first side plate and the second side plate are disposed opposite to each other, the outer plate portion surrounds the periphery of the first side plate and the second side plate, the receiving groove is recessed from the first side plate towards the second side plate, and the magnetic conductor is disposed in the receiving groove.

34. The roller module as claimed in claim 33 further includes a support base, the wheel is pivotally mounted on the support base, the support base includes a receiving groove, a first shaft hole and a second shaft hole, a portion of the wheel is received in the receiving groove, and the first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

35. The roller module as claimed in claim 34, wherein the pivot portion includes a first bushing extending outward from the first side surface of the wheel, the roller module further includes a shaft passing through the first bushing, the two ends of the shaft being respectively inserted into the first shaft hole and the second shaft hole, and the magnetic conductor being sleeved on the first bushing, sleeved on the shaft, or fixed in the receiving groove.

36. The roller module of claim 35, wherein the pivot portion has a second bushing extending outward from the second side surface of the wheel, the shaft passing through the second bushing, and the roller module further includes a rotation sensor comprising a magnetic disk and a sensing chip, the magnetic disk being sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic disk rotating synchronously with the wheel.

37. The roller module as claimed in claim 34, wherein the pivot portion has a first rotating shaft and a second rotating shaft, the first rotating shaft extending outward from a first side surface of the wheel, the second rotating shaft extending outward from a second side surface of the wheel, the end of the first rotating shaft being inserted into the first shaft hole, the end of the second rotating shaft being inserted into the second shaft hole, and the magnetic conductor being sleeved on the first rotating shaft or fixed in the receiving groove.

38. The roller module of claim 37 further includes a rotation sensor, the rotation sensor including a magnetic turntable and a sensing chip, the sensing chip being used to detect the rotation state of the magnetic turntable, the magnetic turntable being sleeved on the second rotating shaft and rotating synchronously with the wheel.

39. A roller module, comprising: A roulette wheel is magnetically conductive and rotatable along a rotation axis. The roulette wheel has a first side surface, a second side surface, a pivot portion, an outer disk portion, and a plurality of extension portions. The first side surface and the second side surface are disposed opposite to each other. The outer disk portion surrounds the periphery of the first side surface and the second side surface. The plurality of extension portions extend axially from the first side surface or radially from the outer disk portion. The plurality of extension portions are distributed in a planetary pattern around the rotation axis. as well as An electro-permanent magnet assembly is disposed beside the wheel. The electro-permanent magnet assembly has a first operating state and a second operating state. When the electro-permanent magnet assembly is in the first operating state, the electro-permanent magnet assembly provides a first magnetic attraction force from an axial direction parallel to the rotation axis to at least one of the plurality of extensions. When the electro-permanent magnet assembly is in the second operating state, the electro-permanent magnet assembly provides a second magnetic attraction force from the axial direction to at least one of the plurality of extensions. The first magnetic attraction force is greater than the second magnetic attraction force.

40. The roller module of claim 39, wherein the electro-permanent magnet assembly comprises: A first permanent magnet having a first magnetic end and a second magnetic end; A coil is wound around the first permanent magnet; A second permanent magnet having a third magnetic end and a fourth magnetic end; A third permanent magnet having a fifth magnetic end and a sixth magnetic end; A first magnetically conductive block, magnetically coupled to the first magnetic end and the third magnetic end; and A second magnetically conductive block magnetically couples the second magnetic end and the sixth magnetic end.

41. The roller module of claim 40, wherein the first magnetic block includes a first connecting portion and a first protrusion, the first connecting portion connecting the first magnetic end and the third magnetic end, the first protrusion protruding axially from the first connecting portion toward the wheel disk, and the first protrusion being adjacent to at least one of the plurality of extensions.

42. The roller module of claim 41, wherein the first protrusion has a plurality of first claw portions, each of the first claw portions being adjacent to one of the plurality of extension portions.

43. The roller module as claimed in claim 42, wherein the plurality of first claws are arranged in a planetary pattern around the axis of rotation.

44. The roller module of claim 40, wherein the second magnetic block includes a second connecting portion and a second protrusion, the second connecting portion connecting the second magnetic end and the sixth magnetic end, the second protrusion protruding axially from the second connecting portion toward the wheel disk, and the second protrusion being adjacent to at least one of the plurality of extensions.

45. The roller module of claim 44, wherein the second protrusion has a plurality of second claw portions, each of the second claw portions being adjacent to one of the plurality of extension portions.

46. ​​The roller module as claimed in claim 45, wherein the plurality of second claws are arranged in a planetary pattern around the axis of rotation.

47. The roller module as claimed in claim 40, wherein the first magnetic end is an S end, the second magnetic end is an N end, the third magnetic end is an S end, the fourth magnetic end is an N end, the fifth magnetic end is an S end, and the sixth magnetic end is an N end.

48. The roller module as claimed in claim 40, wherein the first magnetic end is an N end, the second magnetic end is an S end, the third magnetic end is an N end, the fourth magnetic end is an S end, the fifth magnetic end is an N end, and the sixth magnetic end is an S end.

49. The roller module as claimed in claim 40, wherein when the electro-permanent magnet assembly is in the first operating state, the polarities of the first magnetic end, the third magnetic end, and the fifth magnetic end are the same, and when the electro-permanent magnet assembly is in the second operating state, the polarities of the second magnetic end, the third magnetic end, and the fifth magnetic end are the same.

50. The roller module as described in claim 49, wherein when the coil is energized, the electro-permanent magnet assembly switches from the first operating state to the second operating state.

51. The roller module of claim 40 further includes a magnetic sheet magnetically coupling the fourth magnetic end and the fifth magnetic end.

52. The roller module as claimed in claim 39 further includes a support base, the wheel is pivotally mounted on the support base, the support base includes a receiving groove, a first shaft hole and a second shaft hole, a portion of the wheel is received in the receiving groove, and the first shaft hole and the second shaft hole are located on opposite sides of the receiving groove.

53. The roller module as claimed in claim 52, wherein the pivoting part includes a first bushing extending outward from the first side surface of the wheel, and the roller module further includes a shaft passing through the first bushing, with both ends of the shaft respectively inserted into the first shaft hole and the second shaft hole.

54. The roller module of claim 53, wherein the roller has a second bushing extending outward from a second side surface of the roller, the shaft passing through the second bushing, and the roller module further includes a rotation sensor comprising a magnetic disk and a sensing chip, the magnetic disk being sleeved outside the second bushing, installed inside the second bushing, or sleeved on the shaft, and the magnetic disk rotating synchronously with the roller.

55. The roller module of claim 52, wherein the roller has a first shaft and a second shaft, the first shaft extending outward from a first side surface of the roller, the second shaft extending outward from a second side surface of the roller, the end of the first shaft being inserted into the first shaft hole, and the end of the second shaft being inserted into the second shaft hole.

56. The roller module of claim 55 further includes a rotation sensor, the rotation sensor including a magnetic turntable and a sensing chip, the sensing chip being used to detect the rotation state of the magnetic turntable, the magnetic turntable being sleeved on the second rotating shaft and rotating synchronously with the wheel.

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