Input and rotary load module and input device

Abstract

The invention relates to an input and rotary load module and an input device. According to the input and rotary load module, a rotary load device is connected with an input device, and the input device comprises a body part; the elastic part is arranged in the body part and provides restoring force for the applied pressure; the input device is connected to the rod of the rotary load device and is rotatable, and an input signal can be generated by applying pressure to the body part of the input device.

Description

Technical Field

[0001] The present invention relates to an input and rotation load module and an input device, and more particularly to a hybrid input and rotation load module and an input device which can adjust the rotation torque by applying a magnetic field and can input. Background Art

[0002] The jog dial has a rotatable circular dial form, and the user rotates the dial in a clockwise / counterclockwise direction to select a predetermined function. If the force applied to the jog dial by the user is removed, the dial will be located at a specific position, thereby performing accurate position movement.

[0003] The jog dial is being applied to a mouse, home appliances, etc., and is being used in vehicles as a main input device for a driver information system (DIS) such as a telematics terminal.

[0004] Existing mechanical jog dials work based on gear meshing. Therefore, the rotational tactile sensation of existing mechanical jog dials is a single tactile sensation based on gear meshing, which is limited in reflecting various tactile sensations based on rotation or usage mode. In addition, the mechanical jog dial only has a specified rotational torque based on gear meshing, so the rotational torque cannot be flexibly changed. Even if the rotational torque is controlled by further providing a driving means such as a motor or an additional vibration motor is added to provide a haptic function, it is still necessary to increase components and devices, resulting in an increase in production costs and an increase in the size of the device.

[0005] Furthermore, the jog dial has a problem in that it can only provide rotational input and cannot perform other types of input. Summary of the invention

[0006] Technical issues

[0007] The object of the present invention is to provide an input and rotation load module and an input device, which are different from the existing mechanical structure devices that produce monotonous and single tactile patterns. When rotating, various tactile patterns are generated according to various input signals, which can feel diverse and advanced user touch, and input can be achieved while generating various tactile patterns during rotation.

[0008] In addition, according to an embodiment of the present invention, an object is to provide an input and rotation load module and an input device, which have a built-in tactile function, can adjust the rotation torque, can save production costs, and easily realize the miniaturization of the device.

[0009] Furthermore, according to an embodiment of the present invention, an object is to provide an input and rotation load module and an input device, which can perform various applications in accordance with the purpose by utilizing the shear characteristics or viscosity of the magnetorheological fluid.

[0010] However, these technical problems are merely exemplary, and the scope of the present invention is not limited thereto.

[0011] Technical Solution

[0012] The above-mentioned object of the present invention is achieved through an input and rotational load module, wherein a rotational load device and an input device, wherein the input device includes: a main body; and an elastic part, which is arranged in the main body and provides a restoring force for the applied pressure; the input device is connected to the rod of the rotational load device and can rotate, and an input signal is generated by applying pressure to the main body of the input device.

[0013] Furthermore, according to an embodiment of the present invention, the input device further includes an input portion that receives input based on pressure applied by the main body portion.

[0014] Furthermore, according to an embodiment of the present invention, the input unit includes a button, and the button is pressed based on the pressure applied by the main body.

[0015] In addition, according to one embodiment of the present invention, the main body portion includes: a fixed body, which is used to connect the rod of the rotating load device; a movable body, which is arranged on the upper part of the fixed body and can move up and down along the Z-axis direction, and covers the fixed body to provide an internal space for arranging the elastic part.

[0016] In addition, according to one embodiment of the present invention, the movable body includes: an upper movable body, which is used to cover the upper part of the internal space; a side movable body, which provides a first space for accommodating the fixed body, and at least a portion of the outer circumferential surface of the fixed body is inserted along the inner circumferential surface of the side movable body.

[0017] Furthermore, according to an embodiment of the present invention, the side moving body is cylindrical.

[0018] Furthermore, according to an embodiment of the present invention, at least one locking protrusion is formed on the outer circumferential surface of the fixed body, and a guide groove portion is formed on the inner circumferential surface of the side movable body at a portion corresponding to the locking protrusion of the fixed body.

[0019] Furthermore, according to an embodiment of the present invention, the guide groove portion is formed on the inner circumferential surface of the side moving body with a predetermined length from the upper portion to the central portion.

[0020] In addition, according to one embodiment of the present invention, the elastic portion applies an upward thrust to the movable body based on the fixed body, so that the locking protrusion of the fixed body is locked at the lower end of the guide groove portion of the side movable body, thereby limiting the movement range of the side movable body.

[0021] Furthermore, according to an embodiment of the present invention, the predetermined length is greater than a distance from a lower end of the side moving body to the input portion.

[0022] Furthermore, according to an embodiment of the present invention, an elastic fixing portion for fixing an upper portion of the elastic portion is formed on a lower surface of the upper moving body.

[0023] Furthermore, according to an embodiment of the present invention, a shaft connecting groove for inserting the rod is formed at a lower portion of the fixing body.

[0024] Furthermore, according to an embodiment of the present invention, the fixing body is open at the top and has a second space for accommodating the elastic portion, and the second space is formed with an elastic protrusion for inserting the elastic portion.

[0025] Furthermore, according to an embodiment of the present invention, the device includes: a circuit portion configured to generate the input signal when the input portion senses an input based on pressure applied by the body portion; and a terminal portion connected to the circuit portion and used to transmit power or signals.

[0026] Furthermore, according to an embodiment of the present invention, the circuit unit is disposed on an upper portion of the rotating load device.

[0027] In addition, according to an embodiment of the present invention, an encoder sensor unit is further included, which generates a rotation signal by sensing data of at least one of a rotation speed, a rotation position, a rotation direction, and a rotation angle of the rod of the rotating load device.

[0028] Furthermore, according to an embodiment of the present invention, the input portion includes a Hall element for generating a Hall voltage when a magnetic field is applied or a magnetic field changes, and at least a portion of the lower portion of the moving body includes a magnetic portion.

[0029] Furthermore, according to an embodiment of the present invention, the distance between the input portion and the moving body is calculated using the intensity of the Hall voltage.

[0030] The above-mentioned object of the present invention is achieved by utilizing an input signal generating method of an input and a rotating load module, the method comprising the following steps: (a) viewing menu items by rotating an input device connected to a rod of a rotating load device; and (b) selecting a specific menu item by applying pressure to the main body of the input device.

[0031] The above-mentioned object of the present invention is achieved through an input device, which is connected to the rod of a rotating load device and generates an input signal. The device includes: a main body; an elastic part, which is arranged in the main body and provides a restoring force for the applied pressure; and an input part, which receives input based on the pressure applied by the main body; the main body includes: a fixed body, which is used to connect the rod of the rotating load device; a movable body, which is arranged on the upper part of the fixed body and can move up and down along the Z-axis direction, and covers the fixed body, providing an internal space for arranging the elastic part; the movable body includes: an upper movable body, which is used to cover the upper part of the internal space; a side movable body, which provides a first space for accommodating the fixed body, and at least a part of the outer circumference of the fixed body can be inserted along the inner circumference of the side movable body; the input signal is generated by applying pressure to the movable body.

[0032] Beneficial Effects

[0033] According to the present invention constructed as described above, unlike the existing mechanical structure that only produces a monotonous and single tactile pattern, various tactile patterns are produced according to various input signals during rotation, which has the effect of allowing users to feel diverse and advanced tactile sensations.

[0034] In addition, according to the present invention, a tactile function is built in, the rotation torque can be changed, the production cost can be saved, and the miniaturization of the device is easy.

[0035] Furthermore, according to the present invention, various applications suitable for the purpose can be performed by utilizing the shearing property or viscosity of the magnetorheological fluid.

[0036] Obviously, these effects do not limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 4 is a perspective schematic diagram of a magnetorheological fluid rotation load device according to a first embodiment of the present invention.

[0038] Figure 2 1 is an exploded schematic diagram of a magnetorheological fluid rotation load device according to a first embodiment of the present invention.

[0039] Figure 3 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation load device according to a first embodiment of the present invention.

[0040] Figure 4 yes Figure 3 An enlarged view of part VI.

[0041] Figure 5 is a schematic diagram of the behavior of a magnetorheological fluid on a gap space according to a first embodiment of the present invention.

[0042] Figure 6 is a graph of torque based on the magnetic field of the magnetorheological fluid according to the first embodiment of the present invention.

[0043] Figure 7 FIG. 1 is a schematic diagram of magnetic lines of force of a magnetic material rod according to the first embodiment of the present invention.

[0044] Figure 8 FIG. 4 is a schematic diagram of a moving path of a magnetorheological fluid in a magnetorheological fluid rotation load device according to a first embodiment of the present invention.

[0045] Fig. 9 2 is an exploded schematic diagram of a magnetorheological fluid rotation load device according to a second embodiment of the present invention.

[0046] Fig.10 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation load device according to a second embodiment of the present invention.

[0047] Fig.11 FIG. 4 is a schematic diagram of a moving path of a magnetorheological fluid in a magnetorheological fluid rotation load device according to a second embodiment of the present invention.

[0048] Fig.12 4 is a schematic three-dimensional diagram of a magnetorheological fluid rotation load device according to a third embodiment of the present invention.

[0049] Fig.13 2 is an exploded schematic diagram of a magnetorheological fluid rotation load device according to a third embodiment of the present invention.

[0050] Fig.14 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation loading device according to a third embodiment of the present invention.

[0051] Fig.15 Schematic diagram of the moving path of the magnetorheological fluid in the magnetorheological fluid rotation loading device according to the third embodiment of the present invention.

[0052] Fig.16 4 is an exploded schematic diagram of a magnetorheological fluid rotation load device according to a fourth embodiment of the present invention.

[0053] Fig.17 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation load device according to a fourth embodiment of the present invention.

[0054] Fig.18 FIG. 4 is a schematic diagram of a moving path of a magnetorheological fluid in a magnetorheological fluid rotation loading device according to a fourth embodiment of the present invention.

[0055] Fig.19 Schematic diagram of a yoke and a rotating ring formed with fluid through holes according to an embodiment of the present invention.

[0056] Fig. 20 Schematic diagram of the morphology of magnetic chains in a fluid through hole according to an embodiment of the present invention.

[0057] Fig.21 It is a curve diagram of the torque value before and after forming the fluid through hole according to an experimental example.

[0058] Fig. 22 Schematic diagram of the mode morphology of the yoke and the rotating ring on the horizontal plane according to one embodiment of the present invention.

[0059] Fig.23 Schematic diagram of the yoke and the rotating ring on the horizontal plane and the rotating process according to an embodiment of the present invention.

[0060] Fig.24 is a graph showing torque values ​​based on the viscosity of a magnetorheological fluid according to an experimental example of the present invention.

[0061] Fig.25 is a graph of a basic torque value adjusted for a DC OFF-SET voltage according to an embodiment of the present invention.

[0062] Fig.26 4 is a graph showing a magnetorheological fluid rotating load device when the rotation stops according to an embodiment of the present invention.

[0063] Fig. 27 4 is a graph showing position identification of a magnetorheological fluid rotating load device according to an embodiment of the present invention.

[0064] Fig.28 4 is a graph showing the magnetorheological fluid rotation load device according to an embodiment of the present invention when the reverse rotation stops.

[0065] Fig.29 4 is a graph showing the magnetorheological fluid rotation load device according to an embodiment of the present invention when the reverse rotation tactile sense is released.

[0066] Fig.30 2 is a schematic diagram of a process of redispersion of a precipitated magnetorheological fluid when a pre-input signal (Pre-Input Signal) is applied according to an embodiment of the present invention.

[0067] Fig.31 is a photograph of a magnetorheological fluid in a spike shape when a pre-input signal is applied according to an embodiment of the present invention.

[0068] Fig.32 FIG. 4 is a graph showing the torque value based on the temperature of the magnetorheological fluid according to an experimental example of the present invention.

[0069] Fig.33It is a curve diagram of torque value when applied to an ABS (Anti-lock Brake System) system according to an embodiment of the present invention.

[0070] Fig.34 is a graph of a signal applied to a coil portion and its corresponding torque according to an embodiment of the present invention.

[0071] Fig.35 Schematic diagram of the rotation state of the rod and the rotating ring and the rotation state when the rotating ring is disengaged according to an embodiment of the present invention.

[0072] Fig.36 4 is a schematic diagram of a method for detecting a state where a rotating ring is detached from a rod according to an embodiment of the present invention.

[0073] Fig.37 is a curve diagram of torque values ​​when a rotating ring is separated from a rod according to an embodiment of the present invention.

[0074] Fig.38 Schematic diagram of a magnetorheological fluid rotating load module according to an embodiment of the present invention.

[0075] Figures 39 to 44 4 is an application state diagram of a magnetorheological fluid rotating load device according to multiple embodiments of the present invention.

[0076] Fig.45 1 is a perspective schematic diagram of an input and a rotary load module in which a rotary load device is connected to an input device according to an embodiment of the present invention.

[0077] Fig.46 is an exploded schematic diagram of an input and rotation load module according to an embodiment of the present invention.

[0078] Fig.47 is a side cross-sectional schematic diagram of an input and rotation load module according to an embodiment of the present invention.

[0079] Fig.48 is a schematic diagram of an input means of an input device according to an embodiment of the present invention.

[0080] Fig.49 is a schematic diagram of the working process of the input and rotation load module according to an embodiment of the present invention.

[0081] Fig.50 is a schematic diagram of an input principle according to an embodiment of the present invention.

[0082] Fig.51 is a schematic diagram of an example of use of an input and rotation load module according to an embodiment of the present invention.

[0083] [Description of Reference Numerals]

[0084] 10: Magnetorheological fluid

[0085] 50: Control Department

[0086] 100~400:Magnetorheological fluid rotating load device

[0087] 110~410: Shell

[0088] 120~420: Rod

[0089] 130~430:Coil part

[0090] 140~440: Yoke part

[0091] 150~450: Rotating ring

[0092] 1300: Input device

[0093] 1310: Upper moving body

[0094] 1320: Lateral moving body

[0095] 1330: Fixed body

[0096] 1340: Elasticity

[0097] 1350: Circuit Department

[0098] 1360: Input

[0099] 1370: Encoder sensor

[0100] 1500: Input and Rotating Load Modules

[0101] G: Gap DETAILED DESCRIPTION

[0102] Reference is made to the accompanying drawings which illustrate the embodiments as examples. These embodiments are described fully and in detail below so that those with ordinary knowledge in the art can implement the invention. Various embodiments of the invention should be understood to be different from each other but not mutually exclusive. For example, the specific shapes, structures and characteristics recorded herein can realize one embodiment as other embodiments without exceeding the spirit and scope of the invention. In addition, the position or arrangement of the individual components in each disclosed embodiment should be understood to be changeable without exceeding the spirit and scope of the invention. Therefore, the following detailed description is not intended to limit the invention, and as long as it can be properly described, the scope of the invention is limited only by the attached claims and all scopes equivalent thereto. Similar reference numerals in the drawings refer to the same or similar functions in various aspects, and for convenience, length, area, thickness, etc. and their forms can also be exaggerated.

[0103] In the following, in order to enable those skilled in the art to easily implement the present invention, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0104] Figure 1 FIG. 1 is a perspective schematic diagram of a magnetorheological fluid rotation loading device 100 according to a first embodiment of the present invention. Figure 2 is an exploded schematic diagram of a magnetorheological fluid rotation loading device 100 according to a first embodiment of the present invention. Figure 3 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation loading device 100 according to a first embodiment of the present invention. Figure 4 yes Figure 3 An enlarged view of part VI.

[0105] Reference Figures 1 to 4 The magnetorheological fluid rotation load device 100 of the first embodiment may include a housing 110 , a rod 120 , a coil portion 130 , a yoke 140 , a rotating ring 150 , a magnetorheological fluid 10 , and may further include a cover portion 180 and a bearing portion 190 .

[0106] The interior of the housing 110 provides a space S for arranging other components. The components of the magnetorheological fluid rotation loading device 100 are arranged in the housing 110, and the magnetorheological fluid 10 is filled in the remaining free space in the housing 110. In order to provide a space S for the rod 120 and the rotating ring 150 to rotate, the housing 110 may be substantially cylindrical, but may be other shapes as long as the space S for the rod 120 and the rotating ring 150 to rotate is provided inside.

[0107] As an example, the housings 110 , 111 , 115 may include a first housing 111 and a second housing 115 . The first housing 111 provides a space S in which the coil part 130 , the yoke part 140 , the rotating ring 150 and the magnetorheological fluid 10 are arranged; the second housing 115 covers the upper part of the first housing 111 and seals the inner space S of the first housing 111 .

[0108] After the components of the magnetorheological fluid rotation load device 100 and the magnetorheological fluid 10 are arranged in the space S of the first housing 111, the open upper portion of the first housing 111 is covered with the second housing 115, so that the interior can be sealed. The present invention has the following advantages: the magnetorheological fluid 10 can be sealed and the magnetorheological fluid rotation load device 100 can be assembled at the same time by using only the simple structure of the first housing 111 and the second housing 115.

[0109] The rod 120 is rotatably disposed at the center of the housing 110. The rod 120 is formed to extend in the vertical direction, and the rotating rings 150: 151, 152 can be sleeved in the shaft parts 123, 124 of the rod 120 and rotate together. Alternatively, the rod 120 and the rotating ring 150 can also be formed as one body.

[0110] An edge portion 121 is formed at the upper end of the rod 120 . By inserting a user's gripping means (not shown) such as a dial into the edge portion 121 , the rotational force can be easily transmitted to the axis of the rod 120 .

[0111] The lower end portion 124 of the rod 120 is inserted into the through hole 159 of the rotating ring 152 at the lowest position in the rotating ring 150, so that the rotating ring 152 can support the rod 120 so that the axial position does not deviate during the rotation process. The lower surface of the lower end portion 124 of the rod 120 can be separated from the inner lower surface 113 of the first housing 111. That is, the lower end portion 124 of the rod 120 can be inserted into the middle part of the through hole 159, but will not penetrate the lower part of the through hole 159 of the rotating ring 152. Therefore, the lower end portion 124 of the rod 120 seems to be suspended in the air with the inner lower surface 113 of the first housing 111 as a reference, so that the lower end portion 124 of the rod 120 and the inner lower surface 113 of the first housing 111 can be prevented from mechanically wearing each other. In addition, since the friction between the rod 120 and the first housing 111 and the rotating ring 150 is minimized, there is also an effect of significantly reducing the mechanical rotation torque when no magnetic field is applied.

[0112] In addition, the upper end shaft portion 122 of the rod 120 located in the housing 110 can be inserted into the through hole 199 of the bearing portion 190 and supported. The outer peripheral surface of the upper end shaft portion 122 of the rod 120 can contact the surface of the through hole 199 of the bearing portion 190. Thus, the plurality of shaft portions 122, 123, 124 of the rod 120 are inserted into and supported by the bearing portion 190 and the rotating rings 150: 151, 152, respectively, so that the shaft position of the rod is stably supported. The lower end shaft portion 124 of the rod 120 is fixed by the rotating ring 152, and the upper end shaft portion 122 is fixed by the bearing portion 190, so that there is an advantage that the fixed axis of the rod 120 does not deviate and a pure tactile torque is provided without distortion.

[0113] The coil portion 130 may be arranged on the inner side of the housing 110. In order to uniformly apply a magnetic field inside the housing 110, the coil portion 130 is shaped to correspond to the vertical inner wall 112 of the housing 110, preferably to form a ring with an opening, but not limited thereto. The coil portion 130 is a solenoid coil, which forms a magnetic field when an electric current is applied. Based on the formed magnetic field, the particles 11 of the magnetorheological fluid 10 may be arranged in the direction of the magnetic lines of force or in a vertical direction and form a chain structure. The chain structure is formed between the fixed part and the rotating part of the magnetorheological fluid rotating load device 100, and can provide a torque for the rotating part. The specific control process of the rotational torque will be described later.

[0114] The yoke 140 may be fixedly disposed in the housing 110. The yoke 140 may be fixedly disposed so that the outer side surface thereof faces the inner side surface 131 of the opening of the coil part 130.

[0115] The yoke 140 may include at least a first surface 143 and a second surface 144 that are opposite to the rotating rings 150 151 and 152 described later [see Figure 4 ] shape. In other words, the inner side surface of the yoke 140 may include at least a first surface 143 and a second surface 144. More specifically, the shape of the yoke 140 may include outer peripheral surfaces 153: 153a, 153b facing the rotating ring 150: 151, 152 [refer to Figure 4 ] and a second surface 144: 144a, 144b facing the rotating ring 150: 151, 152 and perpendicular to the first surface 143. A through hole 149 may be formed at the center of the yoke 140 for the rod 120 to pass through.

[0116] From another point of view, the shape of the yoke 140 may be a disk having a through hole 149, and a cylindrical vertical wall 146 may be formed vertically on the outer circumference of the disk. If the through hole 149 is removed, the cross section (see Figure 3 ) may be substantially in the shape of an 'H'. In order to increase the surface areas corresponding to each other, the rotating ring 150 may be disposed in the inner space of the vertical wall 146 formed with the yoke 140 .

[0117] The rotating ring 150 may be in the shape of a disk as a whole and connected to the rod 120. The rotating rings 150: 151, 152 are formed with through holes 159 corresponding to the outer diameter of the shaft of the rod 120 and can be sleeved on the rod 120. The rotating ring 150 can rotate in conjunction with the rotation of the rod 120 relative to the fixed yoke 140.

[0118] A plurality of rotating rings 150: 151, 152 may be arranged inside the housing 110, and the plurality of rotating rings 150: 151, 152 may be connected to the rod 120 with a spacing therebetween. In order to form a spacing between the rotating rings 150: 151, 152, the shaft gap maintaining portion 125 of the rod 120 may be formed to have a predetermined thickness in the middle and a larger outer diameter than the shaft of the rod 120. The through hole 149 of the yoke 140 may be formed to correspond to the outer diameter of the gap maintaining portion 155. The gap maintaining portion 155 has a step difference and is formed integrally with the rotating ring 150, so there is no need to additionally set a gasket on the rod 120, and the spacing between the rotating rings 150 can be maintained by only sequentially putting the rotating rings 150 on the rod 120.

[0119] Figure 3The diagram shows an example of arranging the yoke 140 between two rotating rings 150: 151, 152, but if there are three or more rotating rings, the number of yokes 140 is increased or the shape of the yoke 140 is changed accordingly to the number of rotating rings. In this case, the yokes 140 and the rotating rings 150 are arranged alternately and are stacked in a vertical direction. The coil part 130 is fixedly arranged in the internal space S of the first shell 111, the rotating rings 150 and the yokes 140 are alternately stacked, the rod 120 is inserted, and the remaining rotating rings 150 [and the yokes 140 can also be stacked] are stacked, and then the magnetorheological fluid 10 is filled, and the internal space S is sealed with the second shell 115, and the assembly is completed through this series of processes.

[0120] The present invention has the advantage that the rotation torque increases as the number or size of the yoke 140 and the rotating ring 150 increases. In addition, the present invention has the following advantages: the magnetorheological fluid rotation load device 100 can be formed by a simple process of alternately stacking the yoke 140 and the rotating ring 150 in the housing 110: 111, 115 and combining the first housing 111 and the second housing 115 to assemble. The magnetorheological fluid rotation load device 100 can be formed by a simple process, so that the size change for obtaining a torque value suitable for the purpose of use can be easily handled.

[0121] The upper end of the yoke 140 may be further provided with a cover 180. The cover 180 may be arranged on the edge of the upper end of the yoke 140 and may seal the inner space of the yoke 140. Since the inner space of the yoke 140 is filled with the magnetorheological fluid 10, the cover 180 may be substantially used to seal the inner space S of the second housing 115 outside the coil part 130.

[0122] The cover 180 may be provided with a bearing 190 for the shaft portion 122 of the rod 120 to be inserted. In addition, the second housing 115 is provided on the coil portion 130, the cover 180, and the bearing 190, and the internal space S of the housings 110: 111, 115 is sealed. The lower surface of the second housing 115 may be formed with a receiving step 117 to provide a space for arranging the bearing 190. The bearing 190 may be fixed and supported on the cover 180 with the outer periphery supported on the receiving step 117 and the shaft portion 112 of the rod 120 inserted into the through hole of the bearing 190. In addition, other bearings (not shown) may be sleeved on the shaft of the rod 120 in the internal space of the housing 110.

[0123] A predetermined gap G may be formed between the yoke 140 and the rotating ring 150, and the gap G may be filled with the magnetorheological fluid 10. Specifically, a gap G may be formed between the first surface 143 of the yoke 140 and the outer peripheral surface 153 of the rotating ring 150, and between the second surface 144 of the yoke 140 and the rotating surface 154 of the rotating ring 150. The gap G may also be formed between the housing 110 and the yoke 140, and between the housing 110 and the rotating ring 150. As the properties of the magnetorheological fluid 10 filled in the gap G, such as viscosity and hardness, change, the rotational torque of the rotating ring 150 may change.

[0124] During the rotational motion of the rotating ring 150 , the magnitude of the moment T generated between the rotating ring 150 and the yoke 140 is solved as follows based on the shear stress and the contact area.

[0125] T=T c +T η +T f

[0126] Among them, T c is the controllable torque generated by electric field and magnetic field load, T η is the viscous torque based on the viscosity of the magnetorheological fluid 10 when no electric field or magnetic field is applied, T f It is the frictional torque generated in the mechanical elements. When there is no load, T c Does not exist.

[0127] Therefore, the present invention is characterized in that the magnetic field applied to the magnetorheological fluid 10 by the control coil unit 130, that is, by controlling T c , the overall torque T of the magnetorheological fluid rotation load device 100 can be freely changed.

[0128] Figure 5 FIG. 1 is a schematic diagram of the behavior of the magnetorheological fluid 10 in the gap G space according to the first embodiment of the present invention.

[0129] The magnetorheological fluid rotation loading device 100 may further include a control unit 50 for controlling the intensity, frequency, waveform, etc. of the magnetic field generated in the coil unit 130. When the user rotates the rod 120 of the magnetorheological fluid rotation loading device 100, the control unit 50 changes the torque of the rotating ring 150 by changing the magnetic field applied by the coil unit 130.

[0130] Reference Figure 4 and Figure 5The gap G between the yoke 140 and the rotating ring 150 [or the gap G between the housing 110 and the yoke 140 and the rotating ring 150] can be filled with a magnetorheological fluid 10. The magnetorheological fluid 10 includes magnetic particles 11 and a medium 12 in a fluid form such as oil or water in which the magnetic particles 11 are dispersed.

[0131] Figure 5 The figure shows the state of the magnetic particles 11 dispersed in the medium 12 when no magnetic field is applied (No Magnetic Field). That is, when there is no load, T c =0, then T = T η +T f , is a fixed value. On the contrary, when a magnetic field is applied (Magnetic FieldApplied), the magnetic particles 11 can form a magnetic chain in the direction of the magnetic field lines. The chain can be formed to a degree that it roughly reaches from one side of the rotating ring 150 to one side of the yoke 140. Therefore, there is T c If the value exists, then T = T c +T η +T f , the torque increases as T c The overall torque may change with the change of the value. Thus, the torque required for the rotation of the rod 120 may be changed by the strength of the magnetic field, the binding force of the magnetic chain, the friction transmission force between the yoke 140 and the rotating ring 150, etc. In order to better form the magnetic chain, at least the housing 110 may include a magnetic part, and the rod 120, the yoke 140, and the rotating ring 150 may also include a magnetic part. Including a magnetic part refers to a form that is entirely composed of magnetic materials or only a part of it is composed of magnetic materials. The magnetic material may include iron, nickel, cobalt, ferrite (Fe3O4) or alloys thereof, metals that have been nitrided, oxidized, carburized, silicided, etc.

[0132] The size of the gap G is preferably 10 to 200 times the average diameter of the magnetic particles 11 in the magnetorheological fluid 10, and more preferably about 20 times. If the gap G is too small, the torque value under no load becomes larger or interference occurs when the components rotate, which makes it inconvenient to assemble. If the gap G is too large, it is not conducive to the miniaturization of the device and cannot form sufficient magnetic chains in a smaller magnetic field. For example, the diameter of the magnetic particles 11 can be distributed in the range of about 2 to 10 μm, and the average diameter can be about 5 μm. At this time, the gap G can be at least 0.1 mm, and preferably, the gap G can be about 0.1 mm to 5 mm. Within this numerical range, the magnetic particles 11 form magnetic chains in the direction of the magnetic lines of force, thereby inducing T to transmit tactile changes to the user's hands. c Value changes.

[0133] In addition, the more magnetic particles 11 in the magnetorheological fluid 10, the stronger the magnetic chain is formed, and the maximum torque that can be generated in the rotating load device becomes larger. The magnetic particles 11 in the magnetorheological fluid 10 can preferably be 60 to 95wt%. If the magnetic particles 11 are less than 60wt%, the maximum torque becomes smaller and cannot convey sufficient touch or hardness to the user. If it is greater than 95wt%, the torque value under no load becomes larger due to the excessive magnetic particles 11.

[0134] Figure 6 is a graph of torque based on the magnetic field of the magnetorheological fluid according to the first embodiment of the present invention.

[0135] Figure 6 The diagram shows the form in which the torque changes based on the applied magnetic field strength. If the coil part 130 applies an alternating magnetic field, a torque of the rod 120 corresponding thereto can be generated. According to the pattern of the magnetic field, the pattern of the magnetic chain formed between the yoke 140 and the rotating ring 150 changes, and the rotation torque of the rod 120 connected to the rotating ring 150 can change. Thus, various patterns and tactile sensations can be provided to the user who rotates the rod 120 of the magnetorheological fluid rotation load device 100.

[0136] In addition, the control unit 50 can generate tactile signals for transmitting various modes to the user based on data received from an external device, etc. Based on events or audio generated in a display of an external device, a control signal for controlling the rotational torque of the control rod 120 can be generated. The control unit 50 can transmit a mode signal to the coil unit 130 based on event mode data corresponding to the event effect and audio mode data corresponding to the audio signal.

[0137] For example, when the magnetorheological fluid rotation load device 100 of the present invention is used as a steering wheel for a racing game, in order to correspond to the road surface state during the vehicle movement event on the display, the tactile change can be applied to the rod 120. Alternatively, in the racing game, the torque value of the rod 120 can be applied to different values ​​depending on whether the driving mode is a relaxation mode or a sports mode.

[0138] As another example, a tactile sensation may be generated in the magnetorheological fluid rotation loading device 100 during the process of generating background music or sound effects in a game. When the magnetorheological fluid rotation loading device 100 is used as a mouse wheel, a torque value that stops the rod 120 connected to the mouse wheel from rotating may be applied when a warning sound effect is generated.

[0139] In addition, the control unit 50 can realize various modes of tactile sensations, except for the tactile sensation based on a certain torque value, by controlling the working frequency, strength, waveform, etc. of the coil unit 130. Various embodiments of the control unit 50 will be described later.

[0140] Figure 7FIG. 1 is a schematic diagram of magnetic lines of force of a magnetic material rod according to the first embodiment of the present invention.

[0141] Reference Figure 7 , the magnetic field applied by the coil portion 130 shows different behaviors of magnetic lines of force M, M′ depending on the material of the rod 120. The magnetic field applied by the coil portion 130 to the yoke 140 and the rotating ring 150 may generate magnetic lines of force M in an upper direction perpendicular to the horizontal planes of the yoke 140 and the rotating ring 150. In addition, when the rod 120 includes a magnetic material, the magnetic field applied by the coil portion 130 to the yoke 140 and the rotating ring 150 may partially leak in the direction of the rod 120 and generate magnetic lines of force M′. In this way, based on the magnetic lines of force M′ leaking in the axial direction of the rod 120, the dense effect of the magnetic lines of force M between the gaps G may be reduced.

[0142] Therefore, the present invention is characterized in that the rod 120 includes a non-magnetic material. Including a non-magnetic material refers to a form that is entirely composed of non-magnetic materials, or a form that is only partially composed of non-magnetic materials. In particular, when only a portion is composed of non-magnetic materials, at least the portion of the rod 120 located in the housing 110, for example, the shaft portions 122, 123, 124, and 125 must be composed of non-magnetic materials. According to one embodiment, a plastic material can be used for the rod 220. It can be confirmed that when a plastic material rod 120 is used, the torque value increases from 70mN·m to 110mN·m compared to the case of using a magnetic material rod 120. In addition, in order to improve the dense effect of the magnetic lines of force M, at least a portion of the housing 110 may be composed of a magnetic material. The portion of the housing 110 composed of a magnetic material is preferably a portion close to the yoke 140 and the rotating ring 150.

[0143] Figure 8 Schematic diagram of moving paths LK1 and LK2 of the magnetorheological fluid in the magnetorheological fluid rotation loading device 100 according to the first embodiment of the present invention.

[0144] Reference Figure 8 According to the first embodiment, the magnetorheological fluid rotation load device 100 is a structure in which a cover portion 180 and a bearing portion 190 are arranged on the upper part of a rotating ring 150:151. However, since the rod 120 needs to be inserted into the through hole 199 of the bearing portion 190 and rotated, there may be a gap between the bearing portion 190 and the shaft portion 122 of the rod 120. The magnetorheological fluid 10 existing in the gap G between the cover portion 180 and the rotating ring 150:151 can flow out from the gap between the cover portion 180 and the rod 120 and the gap between the bearing portion 190 and the rod 120. Figure 8 In the gap path through which the magnetorheological fluid 10 flows out, LK1 represents the gap path between the cover portion 180 and the rod 120 , and LK2 represents the gap path between the bearing portion 190 and the rod 120 .

[0145] If the magnetorheological fluid 10 flows out through the gap paths LK1 and LK2, it will have an adverse effect on the rotational force of the bearing 190. In particular, if it flows out to the outside, causing the amount of the magnetorheological fluid 10 in the magnetorheological fluid rotation loading device 100 to change, the torque cannot be controlled at the required strength. Therefore, the sealing of the magnetorheological fluid 10 becomes very important. Next, the sealing means of the magnetorheological fluid 10 will be further understood through the magnetorheological fluid rotation loading device 200 involved in the second embodiment.

[0146] Fig. 9 FIG. 2 is an exploded schematic diagram of a magnetorheological fluid rotation loading device 200 according to a second embodiment of the present invention. Fig.10 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation loading device 200 according to a second embodiment of the present invention. Fig.11 FIG. 1 is a schematic diagram of a moving path FP1 of a magnetorheological fluid in a magnetorheological fluid rotation loading device 200 according to a second embodiment of the present invention. Figures 1 to 4 The other components of the first embodiment are described in detail, and the same components are replaced by the contents described above. The same components in the first embodiment and the second embodiment are marked with 100 series and 200 series components, which correspond to each other and can be referred to. Figures 9 to 11 Each component can be Figures 1 to 4 The above description is replaced.

[0147] Reference Figures 9 to 11 The magnetorheological fluid rotation load device 200 of the second embodiment may include a housing 210, a rod 220, a coil portion 230, a yoke portion 240, a rotating ring 250, a cover portion 280, a bearing portion 290, and a magnetorheological fluid 10, and may further include means for preventing the magnetorheological fluid 10 from flowing out. The housing 210, the coil portion 230, the yoke portion 240, and the rotating ring 250 are substantially the same as the housing 110, the coil portion 130, the yoke portion 140, and the rotating ring 150 described above.

[0148] According to one embodiment, the outflow prevention means may be an O-ring 228. The O-ring 228 may be sleeved on the outer peripheral surface of the rod 220. An O-ring support groove 226 may be formed on the outer peripheral surface of the rod 220, particularly, on the upper end shaft portion 222 of the rod 220 corresponding to the position of the bearing portion 290. In addition, the O-ring 228 may be sleeved in the form of wrapping the O-ring support groove 226. Since the O-ring support groove 226 is a groove formed inwardly on the upper end shaft portion 222 of the shaft, the O-ring 228 may be sleeved to prevent it from being detached in the up and down directions.

[0149] If the O-ring 228 is put on the rod 220, the outer peripheral surface of the O-ring 228 can contact the through hole 299 formed in the central part of the bearing part 290. Therefore, the O-ring 228 can be used to block the Figure 8 A gap path LK2 is defined between the bearing portion 190 and the rod 120 to prevent the magnetorheological fluid 10 from flowing out.

[0150] In addition, according to one embodiment, the outflow prevention means may be a grease portion 229. The grease portion 229 may be formed at the same position as the above-mentioned O-ring 228. The grease portion 229 may be applied to the groove of the O-ring support groove 226 of the rod 220. Alternatively, the grease portion 229 may be applied to the Figure 8 The path through which the magnetorheological fluid 10 can flow out is the gap path LK1 between the cover 180 and the rod 120 or the gap path LK2 between the bearing 190 and the rod 120. Alternatively, the lubricating portion 229 may also be applied to the gap between the upper end of the yoke 240 and the cover 280.

[0151] In addition, according to one embodiment, the outflow prevention means may be a cover ring 285. The cover ring 285 may be arranged inside the inner side surface of the through hole 289 of the cover portion 280. In addition, a bearing portion 290 may be arranged on the upper portion of the cover ring 285. The magnetorheological fluid rotation load device 100 of the first embodiment may not be provided with the cover ring 285, and the bearing portion 190 may be arranged on the upper portion of the cover portion 180. Therefore, the gap path LK1 of the magnetorheological fluid [refer to Figure 8 ] is formed between the cover 180 and the rod 120. Fig.11 In the magnetorheological fluid rotation load device 200 of the second embodiment, the through hole 289 of the cover 280 is formed with a size corresponding to the outer diameter of the cover ring 285 so that the shaft of the rod 220 passes through the through hole 287 of the cover ring 285. The bearing 290 is closely arranged on the upper part of the cover ring 285, and no gap is formed between them. Therefore, the gap path FP1 of the magnetorheological fluid limits the upper part of the rotating ring 250:251 to the outer side surface of the cover ring 285. Since the gap path FP1 does not extend between the bearing 290 and the rod 220, the magnetorheological fluid can be prevented from flowing out to the outside.

[0152] In addition, the anti-flow means of the above-mentioned multiple embodiments can be used in combination. The magnetorheological fluid can be prevented from flowing out to the outside by combining the components of the O-ring 288, the lubricating portion 229 and the cover ring 285.

[0153] Fig.12 FIG. 4 is a perspective schematic diagram of a magnetorheological fluid rotation loading device 300 according to a third embodiment of the present invention. Fig.13 FIG. 4 is an exploded schematic diagram of a magnetorheological fluid rotation loading device 300 according to a third embodiment of the present invention. Fig.14 FIG. 1 is a schematic cross-sectional view of a magnetorheological fluid rotation load device 300 according to a third embodiment of the present invention. Figures 1 to 4The other components of the first embodiment are described in detail, and the same components are replaced by the above-mentioned contents. The same components in the first embodiment and the third embodiment are marked with 100 series and 300 series components, which correspond to each other and can be referenced.

[0154] Reference Figure 12 to Figure 14 The magnetorheological fluid rotation load device 300 may include a housing 310, a rod 320, a coil portion 330, a yoke portion 340, a rotating ring 350, and may further include a cover portion 380 and a bearing portion 390. Except for the difference in some shapes, the housing 310, the coil portion 330, the cover portion 380, and the bearing portion 390 are substantially the same as those of Figures 1 to 4 The same as the first embodiment.

[0155] The upper end of the rod 320 is formed with an edge portion 321 , and by inserting a user's gripping means (not shown) such as a dial into the upper end of the rod 320 , the rotational force can be easily transmitted to the axis of the rod 320 .

[0156] The shaft diameter of the rod 320 located in the housing 310 becomes smaller or the same as it approaches the lower part. Therefore, in a state where the rotating rings 350: 351 to 353 are stacked, the rod 320 can be assembled by a simple process of inserting the rod 320 from top to bottom. The rotating rings 350: 351 to 353 are in contact with each other or arranged in a vertical direction while maintaining a predetermined interval, and the rod 320 can be in a state of being inserted into the through holes 357a, 357b, 357c of the rotating ring 350.

[0157] The lower end portion 325 of the rod 320 is inserted into the through hole 359c of the rotating ring 353 located at the lowermost end of the rotating ring 350, and the rod 320 does not deviate from the axial position during the rotation process and is supported by the rotating ring 353. The lower surface of the lower end portion 325 of the rod 320 can be separated from the inner lower surface of the first housing 311. That is, the lower end portion 325 of the rod 320 can be inserted into the middle part of the through hole 359c, but will not penetrate the lower part of the through hole 359c of the rotating ring 353. Therefore, the lower end portion 325 of the rod 320 is suspended in the air with the inner lower surface 113 of the first housing 311 as a reference, so that the lower end portion 325 of the rod 320 and the inner lower surface of the first housing 311 can be prevented from mechanically wearing each other.

[0158] The coil part 330 may be arranged inside the housing 310. In order to uniformly apply a magnetic field inside the housing 310, the coil part 330 is in a shape corresponding to the vertical inner wall of the housing 310, preferably in a ring shape with an opening, but not limited thereto. Based on the magnetic field formed in the coil part 330, the particles 11 of the magnetorheological fluid 10 are arranged in the direction of the magnetic lines of force and form a chain structure, so that the rotational torque can be controlled.

[0159] The yoke 340 may be fixedly disposed in the housing 310. The yoke 340 may be fixedly disposed so that the outer side surface is opposite to the inner side surface 331 of the opening of the coil part 330. The yoke 340 is substantially cylindrical like the housing 310 to provide a space for the rod 320 and the rotating ring 350 to rotate. The inner diameter of the yoke 340 is preferably greater than the outer diameter of the rotating ring 350.

[0160] At least one rotating ring 350 may be arranged in the inner space of the yoke 340. The rotating rings 350: 351, 352, 353 are arranged in layers, and the rotating rings 350: 351, 352, 353 and the inner side surface of the yoke 340 form a predetermined gap G so that the magnetorheological fluid 10 can be filled in the gap G. Based on the magnetic field formed in the coil part 330, the particles 11 of the magnetorheological fluid 10 are arranged in the direction of the magnetic lines of force and form a chain structure, so that the rotation torque can be controlled. This specification shows the form of arranging three rotating rings 350: 351, 352, 353, but the number of rotating rings 350 can be changed.

[0161] In addition, a cover 380 may be further disposed at the upper end of the yoke 340. The cover 380 is disposed on the edge of the upper end of the yoke 340, thereby sealing the internal space of the yoke 340. Since the internal space of the yoke 340 is filled with the magnetorheological fluid 10, the cover 380 can be substantially used to seal the internal space S of the second housing 315 outside the coil part 330.

[0162] According to the magnetorheological fluid rotation load device 300 of the third embodiment, since there is no yoke between the rotating rings 350, the rotation torque is reduced compared to the first embodiment. On the contrary, the magnetorheological fluid rotation load device 300 has the advantages of simple structure and saving manufacturing cost, and can be applied according to the strength of the required rotation torque and the manufacturing cost. For example, it can be applied to fields where weaker rotation torque can meet the requirements and can save manufacturing costs, such as mouse wheels.

[0163] Fig.15 is a schematic diagram of a moving path LK3 of a magnetorheological fluid according to a third embodiment of the present invention.

[0164] Reference Fig.15 According to the third embodiment, the magnetorheological fluid rotating load device 300 is a structure in which a cover 380 and a bearing 390 are arranged on the upper part of a rotating ring 350:351. The rod 320 needs to be inserted into the through hole 399 of the bearing 390 and rotated. Therefore, there may be a gap between the bearing 390 and the shaft portion 322 of the rod 320. The magnetorheological fluid 10 existing in the gap G between the cover 380 and the rotating ring 350:151 can flow out from the gap between the cover 380 and the rod 320 and the gap between the bearing 390 and the rod 320. Fig.15In the gap path for the magnetorheological fluid 10 to flow out, LK3 represents the gap path between the cover 380 and the rod 320, and LK4 represents the gap path between the bearing 390 and the rod 320. Figure 8 The gap paths LK1 and LK2 in the magnetorheological fluid 10 are substantially the same. Therefore, in order to seal the magnetorheological fluid 10, the magnetorheological fluid rotation loading device 400 according to the fourth embodiment will be used to further understand the sealing means of the magnetorheological fluid 10.

[0165] Fig.16 FIG. 4 is an exploded schematic diagram of a magnetorheological fluid rotation loading device 400 according to a fourth embodiment of the present invention. Fig.17 FIG. 4 is a schematic cross-sectional view of a magnetorheological fluid rotation loading device 400 according to a fourth embodiment of the present invention. Fig.18 FIG. 1 is a schematic diagram of a moving path FP2 of a magnetorheological fluid in a magnetorheological fluid rotation loading device 400 according to a fourth embodiment of the present invention. Figure 12 to Figure 14 The other components of the third embodiment are described in detail, and the same components are replaced by the above-mentioned contents. The same components in the third embodiment and the fourth embodiment are marked as 300 series and 400 series components, which correspond to each other and can be referred to. Figure 16 to Figure 17 The components of Figure 12 to Figure 14 The above description is replaced.

[0166] Reference Figures 16 to 18 The magnetorheological fluid rotation load device 400 of the fourth embodiment may include a housing 410, a rod 420, a coil portion 430, a yoke portion 440, a rotating ring 450, a cover portion 480, a bearing portion 490, and a magnetorheological fluid 10, and may further include means for preventing the magnetorheological fluid 10 from flowing out. The housing 410, the coil portion 430, the yoke portion 440, and the rotating ring 450 are substantially the same as the housing 310, the coil portion 330, the yoke portion 340, and the rotating ring 350 described above.

[0167] According to one embodiment, the outflow prevention means may be an O-ring 428. The O-ring 428 is the same as the O-ring 228 of the second embodiment and is sleeved in the O-ring support groove 426 of the rod 420, and the detailed description is omitted.

[0168] In addition, according to one embodiment, the outflow prevention means may be a grease portion 429. The grease portion 429 may be formed at the same position as the above-mentioned O-ring 428. The grease portion 429 may be applied to the groove of the O-ring support groove 426 of the rod 420. Alternatively, the grease portion 429 may be applied to Fig.15The path through which the magnetorheological fluid 10 can flow out is the gap path LK3 between the cover 380 and the rod 320 or the gap path LK4 between the bearing 390 and the rod 320. Alternatively, the lubricating portion 429 may be applied to the gap between the upper end of the yoke 340 and the cover 380.

[0169] In addition, according to one embodiment, the outflow prevention means may be an extension hole 489 of the cover portion 480. The extension hole 489 may be further extended toward the inner side surface compared to the through hole 389 of the cover portion 380 of the third embodiment. Fig.16 The existing through hole 389 is represented by a dotted line, and the extended hole 489 formed by extending further toward the inner side surface than the through hole 389 is represented by a solid line.

[0170] Reference Fig.18 Since the extension hole 489 is formed to extend toward the inner side surface of the cover 480, the gap path FP2 of the magnetorheological fluid is further extended. The gap path FP2 of the magnetorheological fluid is connected from the upper part of the rotating ring 450:451 to the bearing 490. In the magnetorheological fluid rotation load device 300 of the third embodiment, the diameter of the through hole 389 of the cover 380 is greater than or equal to the diameter of the through hole 399 of the bearing 390. Therefore, the gap path LK3 of the magnetorheological fluid [refer to Fig.15 ] is formed at right angles between the cover 380 and the rod 320, or the side section is formed into an L-shape. Fig.17 In the magnetorheological fluid rotation load device 400 of the fourth embodiment, the gap path FP2 of the magnetorheological fluid is further lengthened by the size of the extension hole 489 formed in the process of connecting the upper part of the rotating ring 450:451 to the bearing part 490 and extending toward the inner side surface. Therefore, the gap path FP2 of the magnetorheological fluid is formed in a circuitous direction, or the side cross section is formed in a U-shaped shape, thereby preventing the magnetorheological fluid from directly flowing out to the outside.

[0171] In addition, according to one embodiment, the outflow prevention means may be the wing 427 of the rod 420. Fig.16 and Fig.18 The outer peripheral surface of the rod 420 is formed with a wing portion 427 protruding to the side. When the rod 420 is inserted into the rotating ring 450 and the bearing portion 490, the wing portion 427 may be formed at a position in contact with the upper surface of the bearing portion 490. That is, the wing portion 427 may be formed at a position that can cover the through hole 499 of the bearing portion 490. The wing portion 427 can prevent the magnetorheological fluid from flowing out from between the bearing portion 490 and the rod 420 by covering the through hole 499.

[0172] In addition, the anti-flow means of the above-mentioned multiple embodiments can be used in combination, and the magnetorheological fluid can be prevented from flowing out by combining the components of the O-ring 488, the lubricating portion 429, the extension hole 489 and the wing portion 427.

[0173] The existing mechanical jog dial only provides a single touch feeling, cannot provide mode diversity according to various user modes, and may have wear problems caused by mechanical operation. In addition, in addition to the mechanical jog dial, there is also a vibration motor dial, which is not a direct touch feeling, but an indirect touch feeling is transmitted through a vibration motor arranged at the bottom. Compared with the direct touch feeling transmission method, the touch feeling transmission force is reduced.

[0174] On the contrary, the present invention has the following advantages: various torque modes can be formed according to the input signal of the magnetic field applied in the coil part 130, 230, 330, 430, the user can feel various tactile sensations, and the transmission force can be changed according to the state change of the magnetorheological fluid 10, so the wear problem is solved, and direct tactile sensation can be transmitted through the rod 120, 220, 320, 420.

[0175] In addition, the present invention can control the properties to match various application purposes according to the physical properties of the magnetorheological fluid 10. For example, if a heavy touch is required, a magnetorheological fluid with high viscosity can be used.

[0176] Fig.19 Schematic diagram of a yoke 140 , 240 and a rotating ring 150 , 250 , 350 formed with fluid through holes 147 , 157 , 247 , 257 , 357 a according to a first embodiment of the present invention. Fig. 20 Schematic diagram of the magnetic chain morphology in the fluid through holes 147, 157, 247, 257, 357a according to the first embodiment of the present invention. Fig.21 It is a curve diagram of the torque value before and after the fluid through hole is formed according to an experimental example.

[0177] Reference Fig.19 , a plurality of fluid through holes 147, 247 may be formed in the yoke 140, 240. In addition, a plurality of fluid through holes 157, 257, 357a may also be formed in the rotating ring 150, 250, 350. In addition, as in the rotating ring 150, 250, 350, a plurality of fluid through holes are also formed in the yoke ring 341, 342. The fluid through holes 147, 157, 247, 257, 357a may be formed vertically through on a horizontal plane such as the surface 144, 244 of the yoke 140, 240 and the rotating surface 154, 254, 354 of the rotating ring 150, 250, 350. In addition, without limitation thereto, the fluid through holes may also be formed horizontally through on a vertical plane such as the vertical wall 146, 246.

[0178] Reference Fig. 20 As shown in the left figure, the fluid through hole 157 can be further stretched to the length (G1->G2) of the vertical chain formed by the magnetic particles 11 of the magnetorheological fluid 10. That is, the chain length of the magnetic particles 11 is further increased by the thickness of the fluid through hole 157 on the original thickness of the gap G, G1, and is formed to the length of the gap G2. Therefore, for the case where the same load is applied, the change in the Tc value is further increased, and the overall moment can be further increased.

[0179] According to one embodiment, when the diameters of the yoke 140, 240, 340, 440 and the rotating ring 150, 250, 350, 450 are about 10 mm, the diameter of the fluid through hole 147, 157, 247, 257, 357a may be about 0.3 mm. In addition, the fluid through hole 147, 157, 247, 257, 357a has the effect of making the injection of the magnetorheological fluid 10 more uniform during the assembly process of the magnetorheological fluid rotation loading device 100-400.

[0180] Reference Fig. 20 As shown in the right side figure, the fluid through hole 157' does not have to be formed vertically (a=90°) and can also be formed at an inclined angle a. By forming the fluid through hole 157' at an inclination, the surface area of ​​the fluid through hole 157' is enlarged, thereby increasing the number of chains of magnetic particles 11. That is, the chains of magnetic particles 11 are formed in the gap G2 that increases the original gap G, G1, and the thickness of the fluid through hole 157', and can also be further formed in the gap G3 from the inclined surface of the fluid through hole 157' to the rotating surface 154 of the rotating ring 150 or to the surface 144 of the yoke 140. In particular, the inclination direction can be formed along the rotation direction R of the rotating ring 150.

[0181] The tilt angle a can be set according to the diameter, number, strength of the rotational torque, etc. of the fluid through hole 157', but is preferably formed at an tilt angle a of 30° to 80°. If it is less than 30°, the fluid through hole 157' penetrates in a horizontal plane with an excessively large size, thereby failing to show the inherent effect of the fluid through hole. If it is greater than 80°, there may be almost no difference in effect from the vertical fluid through hole 157.

[0182] From another point of view, the fluid through holes 157, 157' can provide spaces for forming chains of magnetic particles 11 with various sizes, lengths and directions having gaps G, G1, G2, G3, etc.

[0183] Reference Fig.21It can be seen that when a load of 10 Hz or 100 Hz is applied, a greater torque is presented if the fluid through holes 147, 157, 247, 257, 357a exist, and even when there is no load and no magnetic field is applied, a greater torque is presented if the fluid through holes 147, 157, 247, 257, 357a exist. This is the result of the increase in the viscous torque Tη or friction torque Tf value as the magnetorheological fluid 10 flows into the fluid through holes 147, 157, 247, 257, 357a.

[0184] Fig. 22 FIG. 1 is a schematic diagram of a mode morphology of a yoke 140 and a rotating ring 150 on a horizontal plane according to an embodiment of the present invention. Fig. 22 1 is a schematic side cross-sectional view of the yoke 140 and the rotating ring 150 .

[0185] Reference Fig. 22 , the protruding pattern P1 may be formed on the surface 144 of the yoke 140, or the protruding pattern P2 may be formed on the rotating surface 154 of the rotating ring 150. The protruding patterns P1 and P2 increase the surface area between the yoke 140 and the rotating ring 150, so that more magnetic chains can be formed. As a result, the rotational torque can be increased in the magnetorheological fluid rotating load device 100 of the same size. Not only the protruding patterns P1 and P2, but also the surface of the surface 144 of the yoke 140 and the rotating surface 154 of the rotating ring 150 can be roughened to increase the surface roughness (surface roughness), thereby increasing the surface area and forming more magnetic chains. In addition, the gaps G1, G2, and G3 of various heights can be formed by roughening the surface of the surface 144 of the yoke 140 and the rotating surface 154 of the rotating ring 150 to increase the surface roughness (surface roughness).

[0186] The protruding patterns P1 and P2 may be formed in only one of the yoke 140 and the rotating ring 150, or may be formed in both of them. In addition, the protruding patterns P1 and P2 may be formed facing each other or offset from each other.

[0187] Fig.23 1 is a schematic diagram of the mode morphology and the rotation process of the yoke 140 and the rotating ring 150 on the horizontal plane according to an embodiment of the present invention. Fig.23 1 is a schematic top view of the yoke 140 and the rotating ring 150 .

[0188] Reference Fig.23 The protruding patterns P3 and P4 can be formed on the surface 144 of the yoke 140 and the surface 154 of the rotating ring 150. The formation area, formation pitch, angle, etc. of the protruding patterns P3 and P4 can be freely changed.

[0189] As an example, the protruding patterns P3 and P4 can be formed on the yoke 140 and the rotating ring 150 so as to face each other, and each of them is 45°, and a total of 8 are formed in a radial shape. In the first figure, the user can rotate the rod 120 in a clockwise direction with the SP1 point as a reference. At this time, the protruding patterns P3 and P4 face each other, and the magnetic chain is formed in a shorter gap (corresponding to the distance between the protruding patterns), so that a relatively strong torque T1 is applied. Then, as shown in the second figure, when rotating at the SP2 point, in the area where the protruding patterns P3 and P4 do not face each other, the magnetic chain is formed in a relatively long gap (corresponding to the surface distance between the yoke and the rotating ring), so that a relatively weak torque T2 is applied. Since the applied torque weakens from T1 to T2, the user can accept the tactile feeling of loosening the rotation. Then, as shown in the third figure, when the rod 120 is rotated to point SP3, the protruding patterns P3 and P4 face each other, and the magnetic chain is formed in a shorter gap (corresponding to the distance between the protruding patterns), so that a relatively strong torque T1 is applied. As the applied torque increases from T2 to T1, the user can accept the tactile feeling of tightening the rotation. As described above, when the user rotates the rod 120, different areas can accept the tactile feeling of different torques.

[0190] Fig.24 This is a graph of the moment value based on the viscosity of the magnetorheological fluid according to an experimental example of the present invention. As an example, the low viscosity is set to about 0.15Pa·s, the high viscosity is set to about 0.4Pa·s, and the densities are about 2.8g / ml and 3.8g / ml respectively. Whether it is high viscosity / low viscosity can correspond to the content of magnetic particles. If the content of magnetic particles increases, it can be set to high viscosity, and if the content of magnetic particles decreases, it can be set to low viscosity.

[0191] Reference Fig.24 It can be seen that when a load of 10 Hz or 100 Hz is applied, the high viscosity magnetorheological fluid 10 exhibits a greater torque. Therefore, a torque value that is difficult to achieve even when a large load voltage of 10 V or more is applied in a low viscosity fluid can be obtained by the high viscosity magnetorheological fluid 10. From another point of view, a high torque value can be achieved by increasing the content of magnetic particles.

[0192] As an example, with 5V as the reference, it is difficult to achieve a torque greater than 1.5mN·m with low viscosity, and even a torque greater than 2mN·m can be achieved with high viscosity. In particular, when a 12V load is used in a vehicle, by increasing the torque value achieved to the maximum, it can be applied to prevent the rotation of the rotating load device in specific situations (dangerous situations, driving, etc.). As mentioned above, by setting the viscosity of the magnetorheological fluid 10 to increase the maximum torque of the magnetorheological fluid rotating load device 100, a safety lock (Safety Lock) function for preventing the user's rotation operation can be applied. As long as the maximum torque value is within the range used to prevent the user's rotation operation, the safety lock function can be achieved by adjusting the viscosity, increasing the number and area (reverse area, surface area, etc.) of the rotating ring and the yoke, or shortening the gap G and other structural changes. In addition, the safety lock function can also be achieved by applying a larger current to the coil part.

[0193] The safety lock function is a function of the magnetorheological fluid rotation load device 100 to prevent the user's general rotation operation in order to help the user's safety, and has a characteristic of a torque value greater than the general rotation operation. The user needs to perceive a torque value that is significantly different from the general rotation operation. Therefore, the torque value generated when the safety lock function is implemented is preferably more than 1.5 times the average value of the torque generated in the general rotation operation. For example, not only can safety be ensured by preventing dangerous operations during vehicle driving (for example, the speed change of the micro-dial gear while driving), but also it can prevent children from accidentally operating when home appliances such as washing machines are working.

[0194] Fig.25 FIG. 4 is a graph showing a basic torque value adjusted for a DC OFF-SET voltage according to an embodiment of the present invention.

[0195] Reference Fig.25 The control unit 50 may transmit a DC offset signal to the coil unit 130 based on the offset data corresponding to the action mode received from the outside.

[0196] For example, when the magnetorheological fluid rotation load device 100 is applied to a mouse wheel, the basic wheel movement needs to be smooth, such as Fig.25 As shown in the left figure of FIG. 1 , the control unit 50 can transmit a DC offset signal to the coil unit 130 to reduce the DC OFF-SET voltage or turn it to 0V. On the contrary, when the roller needs to rotate heavily for fine roller operation, such as Fig.25 As shown in the right side figure of , the control unit 50 can transmit a DC offset signal to the coil unit 130 to increase the DC OFF-SET voltage.

[0197] As another example, when the magnetorheological fluid rotation load device 100 is applied to a vehicle, when the jog dial (rotation load device) is set to a normal driving mode, such as Fig.25 As shown in the left figure of FIG. 1 , in order to make the DC OFF-SET voltage drop or become 0V, the control unit 50 can transmit a DC offset signal to the coil unit 130 and provide a slight vibration and a small torque tactile feeling. On the contrary, when the jog dial is set to the sports car driving mode, as shown in FIG. Fig.25 As shown in the right side figure of , in order to increase the DC OFF-SET voltage, the control unit 50 can transmit a DC offset signal to the coil unit 130 and provide a strong vibration and a strong torque tactile sensation.

[0198] In addition, when the jog dial is turned to shift gears in the vehicle, the DC OFF-SET voltage can be set differently for parking (P), driving (D), neutral (N), and reverse (R), and different vibration and torque intensities can be provided. This allows the user to easily switch driving modes or shift gears by touch, without having to carefully check the jog dial with their eyes, while looking forward.

[0199] Fig.26 4 is a graph showing a magnetorheological fluid rotating load device when the rotation stops according to an embodiment of the present invention. Fig. 27 4 is a graph showing position identification of a magnetorheological fluid rotating load device according to an embodiment of the present invention.

[0200] Reference Fig.26 When the control unit 50 determines that the rod 120 has reached the specific rotation position L1, it can transmit a position recognition signal or a rotation stop signal to the coil unit 130. In order to allow the user to distinguish the torque value felt when the rod 120 is usually rotated, the position recognition signal or the rotation stop signal can be a signal that is sufficient for the coil unit 130 to achieve a significantly large torque value. This position recognition signal or rotation stop signal can be an intermittent signal or a continuous signal that can be repeated multiple times.

[0201] Reference Fig. 27 When the control unit 50 determines that the rod 120 has reached the specific rotation position L2, it can transmit a position recognition signal or a rotation stop signal to the coil unit 130. The position recognition signal or the rotation stop signal is Fig.26 The position recognition signal or rotation stop signal is similar to the above, but the period during which the user feels the degree of rotation stop may be very short. Fig. 27 The position identification signal or the rotation stop signal may be a signal that returns to a signal for achieving a rotation torque value of the general rod 120 after an intermittent or continuous signal. Therefore, the user only feels resistance at a specific position during the rotation of the rod 120 to identify the position.

[0202] Fig.28 4 is a graph showing the magnetorheological fluid rotation load device according to an embodiment of the present invention when the reverse rotation stops. Fig.294 is a graph showing the magnetorheological fluid rotation load device according to an embodiment of the present invention when the reverse rotation tactile sense is released.

[0203] Reference Fig.28 When the control unit 50 determines that the rod 120 rotates in the reverse rotation direction RR opposite to the forward rotation direction RF, a rotation stop signal may be transmitted to the coil unit 130. In order to allow the user to feel a torque value different from the torque value normally felt when rotating the rod 120, the rotation stop signal may be a signal that is large enough for the coil unit 130 to achieve a significantly large torque value. Fig.24 The torque value generated by the rotation stop signal is preferably 1.5 times greater than the average value of the torque value generated in the general rotation operation. This rotation stop signal can be an intermittent signal or a continuous signal repeated multiple times. Therefore, the user can accept the tactile feeling that the drive is only driven in the positive rotation direction RF and the drive in the reverse rotation direction RR is blocked.

[0204] Reference Fig.29 When the control unit 50 determines that the rod 220 rotates in the reverse rotation direction RR opposite to the forward rotation direction RF, the coil unit 230 can be controlled not to apply a magnetic field to the magnetorheological fluid 10. When rotating in the reverse rotation direction RR, the magnetic field applied by the coil unit 230 is 0, and the rod 220 is not applied with a torque generated by the formation of a magnetic chain, and can rotate without resistance. Therefore, the user can only receive the tactile sensation when driving in the forward rotation direction RF, and receive the tactile sensation release state when driving in the reverse rotation direction RR.

[0205] Fig.30 2 is a schematic diagram of a process of redispersion of a precipitated magnetorheological fluid when a pre-input signal (Pre-Input Signal) is applied according to an embodiment of the present invention. Fig.31 is a photograph of a magnetorheological fluid in a spike shape when a pre-input signal is applied according to an embodiment of the present invention.

[0206] During the application of the magnetorheological fluid 10, the precipitation of the magnetic particles 11 in the fluid 12 may become a problem. As time passes, the magnetic particles sink, and when the magnetic particles are unevenly dispersed inside the housing 110, the magnetic chain cannot be formed normally. Alternatively, as the magnetorheological fluid rotation load device 100 is continuously used, the magnetic particles 11 may be concentrated in a specific portion of the gap G between the yoke 140 and the rotating ring 150. For example, in the device 100 of the first embodiment, since the outer portions of the yoke 140 and the rotating ring 150 are adjacent to the solenoid coil portion 130, more chains are formed, and the closer to the inner side of the rod 120 axis, the farther away from the solenoid coil portion 130, so the weaker magnetic field causes relatively fewer chains to be formed. In this way, the precipitation of the magnetic particles 11 causes the magnetic particles 11 to be concentrated only in a specific area within the gap G, and the magnetic particles are also concentrated in the lower area of ​​the housing 110 due to the precipitation of the magnetic particles 11. In this state, if the magnetorheological fluid rotation load device 100 is immediately driven, a torque value different from the preset value will appear.

[0207] Therefore, the present invention is characterized in that, when magnetic particles 11 are precipitated in the magnetorheological fluid rotation loading device 100, in order to smoothly redisperse the magnetic particles 11, before the magnetorheological fluid rotation loading device 100 operates, the control unit 50 transmits a pre-input signal (Pre-Input Signal) in the form of a spike, a pulse, a sine wave, etc. to the coil unit 130. When the magnetorheological fluid rotation loading device 100 does not operate for more than a set time, the control unit 50 may transmit the pre-input signal to the coil unit 130 before the operation.

[0208] The pre-input signal is different from Figure 5 The pre-input signal is a signal for the magnetic particles in the magnetorheological fluid 10 to move and form an incomplete or complete chain in at least one of the vertical or horizontal directions in the gap G. The pre-input signal may be a signal that does not need to have a specific frequency, waveform, etc., and applies a relatively strong magnetic field in a singular or plural number. In addition, the pre-input signal does not have to be a signal that causes the magnetic particles 11 to form a complete magnetic chain, so that the lower surface of the gap G [as an example, the upper surface of the rotating ring 150] is connected to the upper surface of the gap G [as an example, the lower surface of the yoke 140]. Fig.31 Examples of various spike shapes based on incomplete chains of magnetic particles are shown.

[0209] If the coil unit 130 applies a magnetic field through a pre-input signal, the particles 11 precipitated in the magnetorheological fluid 10 may form an incomplete chain shape such as a spike toward the direction of the magnetic field, and at the same time or afterwards, the application of the magnetic field is released or only a weak magnetic field is applied. As a result, the shape of the spike is removed, and the magnetic particles 11 in the incomplete chain shape such as the spike are dispersed and redispersed in the gap G at the same time.

[0210] In addition, when the working voltage V1 of the magnetorheological fluid rotation load device 100 is applied, when the control unit 50 determines that the height of the magnetic chain formed at the minimum height in the gap G between the yoke 140 and the rotating ring 150 is less than the height of the gap G, a pre-input signal voltage V2 for releasing the chain can be applied, and V2 is greater than V1.

[0211] Fig.32 is a graph showing the torque value depending on the temperature of the magnetorheological fluid according to an experimental example of the present invention.

[0212] Reference Fig.32 It can be seen that, with 5V as the reference, according to the changes in the viscosity and shear stress characteristics of the magnetorheological fluid, compared to the initial state (default state), the closer to the high temperature state (working state of the rotating load device), the torque gradually decreases. Therefore, after the control unit 50 senses the working temperature of the magnetorheological fluid rotating load device, it controls the intensity and mode of the magnetic field to offset the torque reduction caused by the temperature rise compared to the initial working temperature, so that the torque intensity at the initial working temperature can still be maintained under high temperature conditions. Therefore, the uniformity of the torque value can be ensured regardless of summer, winter, etc., regardless of the external temperature environment.

[0213] Fig.33 It is a curve diagram of torque value when applied to an ABS (Anti-lock Brake System) system according to an embodiment of the present invention.

[0214] As described above, the magnetorheological fluid rotating load device of the present invention can increase the torque by stacking the yoke 140 and the rotating ring 150 in multiple layers or increasing the surface area, and can also increase the torque by stacking the yoke rings 141, 142 and the rotating ring 150 in multiple layers or increasing the surface area. Therefore, the magnetorheological fluid rotating load device can be used for an object that requires a larger torque. The object can be a means of transportation such as a vehicle, and the magnetorheological fluid rotating load device can be a braking device such as a brake.

[0215] In particular, the present invention does not need to use a complex structure and multiple components like the existing mechanical brake device, and can achieve various torque values ​​by controlling the instantaneous change of various torque values, but only by changing the magnetic field strength and mode applied by the coil part. Fig.33 The magnetorheological fluid rotation load device of the present invention can be applied to the ABS (Anti-lock Brake System) system due to the torque change.

[0216] When the vehicle brakes suddenly, if the wheels are locked for a moment, the vehicle will lose braking force and skid on the ground due to inertia (driving speed). The moment the vehicle skids, the maximum static friction will be generated, and once it skids, a relatively small dynamic friction will be applied. The ABS system maximizes friction by repeatedly generating the moment of maximum static friction and continuously generating the moment of converting static friction into dynamic friction.

[0217] The existing ABS system also needs to be equipped with an ABS modulator, which includes an oil pressure for controlling the brake device, a decompression gas pump, an energy storage device, etc., and has limitations in the pattern of accelerating the generation of static friction. In contrast, the magnetorheological fluid rotation load device of the present invention has the advantage of realizing the ABS system by a simple structure of controlling the intensity and period of the applied magnetic field.

[0218] According to one embodiment, in order to improve the problem that the vehicle cannot be turned due to wheel lock during emergency braking, the wheel slip rate can be maintained at 20%. The slip rate (%) can be calculated based on {V (vehicle speed) - V (wheel speed)} / V (wheel speed).

[0219] The application of the braking device of the present invention can improve the durability problem caused by repeated control of oil pressure brakes, can accurately control the brakes, and has the advantage of preventing frequent failures of the ABS modulator.

[0220] Fig.34 is a graph of a signal applied to a coil portion and its corresponding torque according to an embodiment of the present invention.

[0221] The control unit 50 can transmit a mode signal to the coil unit 130 based on the event mode data corresponding to the effect of the event received from the outside or the audio mode data corresponding to the audio signal. This mode signal can be in the form of pulse, sine, triangle, sawtooth, etc. According to the various mode signals applied to the coil unit 130, the magnetorheological fluid 10 can present different force rectangular states, intensities, etc. For example, even if the mode signal of the same pulse form is input into the coil unit 130, if the duty cycle becomes larger, a smooth touch can be transmitted, and if the duty cycle is small, a sharp touch can be transmitted. In the mode signals of sine, triangle, and sawtooth forms, the longer the wavelength and period become, the smoother the touch can be transmitted, and the smaller the wavelength and period become, the sharper the touch can be transmitted.

[0222] The control unit 50 controls the mode signal and Figure 25 to Figure 29 The above control process can be used in various applications as described below.

[0223] For example, in an electronic device with a display such as a PC or tablet computer, when a user performs text operations or coding operations, the control unit 50 can temporarily remember the user's editing position, cursor position, etc. In addition, when the user performs operations at other positions and returns to the memorized editing position, when the cursor reaches the memorized editing position, the control unit 50 can transmit a mode signal to the coil unit 130 to provide different other operation touches. Fig.26 As shown, if the memorized editing position is reached, a position identification signal or a rotation stop signal can be transmitted. Alternatively, as the memorized editing position is gradually reached, a pattern signal of a gradually stronger form can be transmitted to facilitate the user to find the editing position.

[0224] As another example, when an event conversion occurs in the display to move various programs, applications, slides, pages, etc., the control unit 50 can provide different tactile sensations during the movement based on the event conversion data corresponding to the event conversion. Fig.25 By increasing the DC OFF-SET voltage, a stronger torque is provided. In this article, a weaker torque is provided by reducing the DC OFF-SET voltage. Alternatively, when obtaining props during the game, when the game character is subject to resistance such as water, sand, clay, etc. during movement, the torque of the mouse wheel can be changed during the process of climbing a ladder or a rope. Alternatively, when a certain time is required to perform a specific action during the game, a warning tactile sensation is provided through the mouse wheel after a certain time has passed, thereby solving the inconvenience caused by the user using vision to confirm a certain time through the display.

[0225] As another example, when a precise event occurs in the PC that requires precise movement of the mouse wheel, the control unit 50 may increase the intensity of the magnetic field applied by the coil unit 130 to the magnetorheological fluid. Fig.25 , by increasing the DC OFF-SET voltage to provide a stronger torque to make the roller rotate heavily.

[0226] Fig.35 1 is a schematic diagram of the rotation state of the rod 120 and the rotating ring 150 and the rotation state of the rotating ring 150 when it is disengaged according to an embodiment of the present invention.

[0227] Reference Fig.35As shown in the figure above, the shaft of the rod 120 can be inserted into the through hole 159 of the rotating ring 150 and connected. As the rod 120 and the rotating ring 150 are connected to each other, if the rod 120 rotates, the rotating ring 150 also rotates together. During the rotation process, the rotating ring 150 is subjected to the resistance of the chain structure of the magnetorheological fluid. When the magnetorheological fluid rotating load device 100 is used for a long time or a strong torque is applied to the rotating ring 150, the rotating ring 150 may be separated from the rod 120.

[0228] Reference Fig.35 The following figure shows a state in which even if the user transmits force to the rod 120 to rotate it, the rotating ring 150: 151, 152 is detached from the rod 120 and cannot rotate. At this time, the chain structure based on the magnetorheological fluid cannot provide resistance to the wide horizontal surface of the rotating ring 150, so the desired tactile feeling cannot be provided to the user through the rod 120. In addition, the magnetorheological fluid rotating load device 100 is a structure in which the interior is sealed by the housing 110, so it is difficult to confirm the connection status of the rod 120 and the rotating ring 150 in time. Therefore, a solution is needed to confirm the connection status of the rod 120 and the rotating ring 150 without disassembling the magnetorheological fluid rotating load device 100.

[0229] Fig.36 2 is a schematic diagram of a method for detecting a state where the rotating ring 150 is separated from the rod 120 according to an embodiment of the present invention. Fig.37 is a curve diagram of the torque value when the rotating ring 150 is separated from the rod 120 according to an embodiment of the present invention.

[0230] Reference Fig.36 , prepare a magnetorheological fluid rotating load device 100 and a PC60, a rotating motor 70, and a torque sensor 80. The PC60 can control the magnetorheological fluid rotating load device 100 and the rotating motor 70, and collect the values ​​measured by the torque sensor 80. The rotating motor 70 can be connected to the rod 120 part of the magnetorheological fluid rotating load device 100 to transmit the rotational force of the motor to the rod 120. The torque sensor 80 can measure the torque value received by the rod 120 when it rotates. A certain current is transmitted to the coil part 130 under the control of the control unit 50. The magnetorheological fluid rotating load device 100 is a rotating ring 150 of the first embodiment: 151 and 152 are two magnetorheological fluid rotating load devices. In order to have a high torque value while maintaining a DC torque value, a DC input signal is input to the coil part 130. And an input DC current of 1A is continuously applied for more than 1 hour.

[0231] Reference Fig.37 In the first curve graph, when the rod 120 is normally connected to the rotating rings 150: 151, 152, even if time passes, a certain torque value will still be presented due to the application of a certain current value.

[0232] Reference Fig.37 As can be seen from the second curve graph, when one of the rotating rings 150 is detached from the rod 120, the torque value decreases discontinuously. Compared with the initial value, the torque value decreases by about 35%.

[0233] Reference Fig.37 As can be seen from the third curve graph, when two rotating rings 150 are disengaged from the rod 120, the torque value decreases discontinuously again. Compared with the initial value, the torque value shows a decrease of about 90%.

[0234] In the above situation, it is assumed that the rotating ring 150 is detached from the rod 120 and the torque value is detected. However, in addition to the detachment of the rotating ring 150, even if the rod 120, the rotating ring 150 is damaged or the housing 110, the yoke 140, etc. are damaged and cause structural defects, the torque value will also decrease rapidly.

[0235] Furthermore, it is assumed that the coil unit 130 applies a magnetic field of a certain strength to the magnetorheological fluid 10 as the same current or voltage is supplied to the coil unit 130. If the torque value is detected to be reduced by about 30% or more compared to the initial torque value of the magnetorheological fluid 10, it can be determined that a structural defect occurs in the magnetorheological fluid rotation load device 100. The initial torque value is pre-stored in the control unit 50 and can also be used as a reference for comparing the torque value.

[0236] In order to detect structural defects that occur during use of the magnetorheological fluid rotation load device 100, a torque sensor may be further provided. Fig.38 A torque sensor may be further provided on the encoder sensor 500. The control unit 50 may receive the torque value in real time and compare it with the initial torque value to determine whether it is a structural defect. If the control unit 50 determines that it is a structural defect, a structural defect prompt is provided to a display, PC, etc. connected to the magnetorheological fluid rotation load device 100. Alternatively, a structural defect display unit such as an LED (not shown) is further provided in the magnetorheological fluid rotation load device 100, and the user can immediately confirm the structural defect by displaying a structural defect prompt signal in the structural defect display unit as the control unit 50 displays the structural defect prompt signal.

[0237] In addition, when there are three or more rotating rings 150, assuming that the same current or voltage is applied to the magnetorheological fluid 10, if the torque value is detected to be reduced by more than about (100 / N)% compared to the initial torque value, it can be determined that a structural defect occurs in the magnetorheological fluid rotation load device 100. For example, when five rotating rings are used, when one ring is detached and only four rings are connected to the rod, if the torque value is detected to be reduced by more than about 20%, it can be determined that a structural defect occurs.

[0238] Fig.38Schematic diagram of a magnetorheological fluid rotating load module according to an embodiment of the present invention.

[0239] The magnetorheological fluid rotation load device 100-400 can be used as a rotation load module after being combined with various units. According to one embodiment, the magnetorheological fluid rotation load module can be in the form of a magnetorheological fluid rotation load device 300 combined with an encoder sensor 500. Generally, the rotation friction can be reduced by combining the bearing 390 and the rod 320, but the encoder sensor 500 can be combined with the magnetorheological fluid rotation load device 300, and the encoder sensor 500 is formed by combining the bearing 390 with the encoder for sensing the rotation speed, position, and direction data.

[0240] Figures 39 to 44 Schematic diagram of the application of magnetorheological fluid rotation load device according to multiple embodiments of the present invention.

[0241] The magnetorheological fluid rotary load device and the rotary load module can be applied to equipment equipped with a dial or a wheel.

[0242] Reference Fig.39 The magnetorheological fluid rotation load device 100-400 can be applied to the user interface 610 (UI) of a washing machine 600, a microwave oven, etc., and a dial [rod 120-420] can be arranged at the position corresponding to each driving mode, and various tactile sensations based on different driving modes can be provided. As an example, when the washing machine is set to the general washing mode, a gentle rotation tactile sensation is provided, and when it is set to the strong washing mode, a strong torque rotation tactile sensation can be provided.

[0243] Reference Fig.40 The magnetorheological fluid rotation load device 100 to 400 is applied to the scroll wheel 710 of the mouse 700, and the torque for operating the scroll wheel 710 changes according to different usage environments, thereby providing various tactile sensations. For example, when a crisis occurs in a game, the torque for driving the scroll wheel 710 may become stronger. In addition, if Fig.40 As shown in the figure below, when playing the brick smashing game 800 by moving the mouse wheel 710 left and right, in the process of moving the reflector 810 left and right by operating the wheel 710 in the up and down directions, when the reflector moves to the left edge and there is no more room for movement by turning the wheel 710 upward, the torque of driving the mouse wheel 710 upward becomes larger, making it difficult to operate, and only the mouse wheel 710 is allowed to be driven downward. In addition, at the moment when the ball 820 is reflected on the reflector 810, the reflection state of the ball 820 can be directly provided to the user as a tactile sensation by instantly changing the strength of the wheel 710.

[0244] Reference Fig.41In addition to buttons and scroll wheels, the mouse 900 may also include an additional dial 910. The dial 910 may use magnetorheological fluid to rotate the load device 100-400 and set various drive modes of the mouse 900. Alternatively, the dial 910 itself may be used as an input means in parallel with the buttons and scroll wheels of the mouse 900, and a tactile sense based on the change of rotation torque may be provided during the input process.

[0245] Reference Fig.42 , the vehicle control unit 1000 may include a dial-type transmission unit 1010 or a driving mode selection unit 1010. The vehicle control unit 1000 further includes a display 1020 to indicate the driving state of the vehicle, and may further include a button unit 1030 to set auxiliary driving options. The dial-type transmission unit 1010 or the driving mode selection unit 1010 uses a magnetorheological fluid to rotate the load device 100 to 400 to change various driving modes of the vehicle. As an example, in the dial-type transmission unit 1010, when parking (P), driving (D), neutral (N), reverse (R), etc. change, the torque changes to achieve speed change, and this process can be achieved by providing tactile sensation. In particular, when the dial-type transmission unit 1010 needs to be suddenly rotated to parking (P) or reverse (R) during driving (D), the rotation torque value is controlled to increase rapidly, so that the safety lock function can be achieved. As another example, the driving mode selection unit 1010 may use different rotation torque values ​​depending on whether the driving mode is the relaxation mode or the sports mode.

[0246] Reference Fig.43 In the notebook computer 1100 or computer, the touch panel located at the bottom of the keyboard further includes a functional part 1110 such as a roller. Alternatively, the keyboard may further include an additional functional part 1120 such as an additional roller. The magnetorheological fluid rotation load device 100-400 is used in the functional parts 1110 and 1120, and the torque of the operating roller 710 changes according to different usage environments, thereby providing various tactile sensations.

[0247] Reference Fig.44 , the magnetorheological fluid rotation load device 100-400 can be applied to the shaft 1210 of the steering wheel 1200 for racing games or the steering wheel 1200 for vehicles. As an example, in order to correspond to the road surface state during the movement of the vehicle in the game screen, the magnetorheological fluid rotation load device 100-400 can be used to provide a change in tactile feeling by using the rotation torque change of the magnetorheological fluid rotation load device 100-400. In another example, in a racing game, different torque values ​​for rotating the steering wheel 1200 can be used depending on whether the driving mode is a relaxation mode or a sports car mode.

[0248] in addition, Figures 39 to 44In the embodiments described in the above, the mouse, keyboard, steering wheel, vehicle, home appliance, etc. may also have a button for turning on / off the tactile function or adjusting the setting. Alternatively, the control screen (PC screen, smartphone screen, etc.) connected to the mouse, keyboard, steering wheel, vehicle, home appliance, etc. may have a setting window, so that the tactile function can be turned on / off, or the tactile intensity, mode, etc. can be set.

[0249] As described above, the present invention can generate and provide various patterns according to various input signals when the rotating load device rotates, which has the effect of providing a diverse and high-quality user tactile experience. In addition, the present invention can change the rotation torque, reduce production costs, facilitate the miniaturization of the device, and utilize the shear properties or viscosity of the magnetorheological fluid to perform various applications that meet the purpose.

[0250] Fig.45 1 is a schematic diagram of an input and rotary load module 1500 connecting a rotary load device 100 to an input device 1300 according to an embodiment of the present invention. Fig.46 is an exploded schematic diagram of an input and rotation load module 1500 according to one embodiment of the present invention. Fig.47 is a side cross-sectional schematic diagram of an input and rotation load module 1500 according to one embodiment of the present invention.

[0251] In the following, an example is given of connecting the input device 1300 with the magnetorheological fluid rotation load device 100 of the first embodiment described above to form an input and rotation load module 1500. Of course, the rotation load device 100 can be replaced by the magnetorheological fluid rotation load devices 200, 300, 400 of the second, third, and fourth embodiments described above.

[0252] Reference Figure 45 to Figure 47 , the input device 1300 can be connected to the rotating load device 100. The input device 1300 can be used as a knob for inserting the rod 120 of the rotating load device 100. The rotational force of the rod 120 can be transmitted by rotating the input device 1300. In addition, input can be performed by pressing the input device 1300 downward in the vertical direction (Z-axis direction). In the process of rotating the input device 1300, the control unit 50 can provide a tactile sense by controlling the rotational torque of the rod 120. In addition, in the process of pressing the input device 1300, the circuit unit 1350 and the input unit 1360 can perform input by transmitting an input signal to the processing unit 60. The control unit 50 and the processing unit 60 can transmit signals to each other.

[0253] Reference Fig.46 and Fig.47The input device 1300 may include a body portion 1310 , 1320 , 1330 , and an elastic portion 1340 . In addition, the input device 1300 may further include a circuit portion 1360 , an input portion 1360 , and an encoder sensor portion 1370 .

[0254] The body parts 1310 , 1320 , 1330 may include moving bodies 1310 , 1320 and a fixed body 1330 .

[0255] The movable bodies 1310 and 1320 may be arranged on the fixed body 1330. The movable bodies 1310 and 1320 may cover the fixed body 1330 and provide an internal space for arranging the elastic part 1340. The movable bodies 1310 and 1320 may be configured to move downward along the Z axis when pressed by a user, and to push upward based on the elastic force of the elastic part 1340 and move upward along the Z axis when the pressing is released.

[0256] More specifically, the moving bodies 1310 , 1320 may include an upper moving body 1310 and a side moving body 1320 .

[0257] The upper movable body 1310 constitutes the upper surface of the input device 1300, and may correspond to the portion pressed by the user for input. The upper movable body 1310 may cover the upper portion of the internal space for arranging the elastic portion 1340. Moreover, the upper movable body 1310 may correspond to the portion that substantially applies pressure to the upper portion of the elastic portion 1340. The lower surface of the upper movable body 1310 may be formed with an elastic fixing portion 1312 for fixing the upper portion of the elastic portion 1340. The elastic fixing portion 1312 is protrudingly formed on the lower surface of the upper movable body 1310, and is configured to be inserted into the hollow area of ​​the elastic portion 1340 such as a spring.

[0258] The side moving body 1320 constitutes the outer peripheral side of the input device 1300, and may correspond to the part that the user rotates when rotating. Of course, it is also possible to perform a press input in the vertical direction (Z-axis direction) by holding the side moving body 1320 instead of the upper moving body 1310. The shape of the side moving body 1320 is preferably cylindrical, so as to facilitate rotation. The side moving body 1320 may be integrally connected to the edge of the upper moving body 1310.

[0259] The side moving body 1320 may provide a first space R1 for accommodating the fixed body 1330. The side moving body 1320 may be an open shape from top to bottom, and the inside may be used as the first space R1. The inner circumferential surface of the side moving body 1320 may be formed with at least one guide groove portion 1325 at a predetermined interval. The guide groove portion 1325 may be formed at a position corresponding to a locking protrusion 1335 of the fixed body 1330 described later. The guide groove portion 1325 is formed on the inner surface of the side moving body 1320 from the upper part to the central part with a predetermined length H [refer to Fig.47 The lower end of the guide groove portion 1325 is formed in a step shape so that the locking protrusion 1335 is locked at the lower end of the guide groove portion 1325 to limit the moving path.

[0260] The fixed body 1330 may be connected to the rod 120 of the rotating load device 100. The fixed body 1330 may be configured not to move when pressed by a user, and to transmit a rotational force to the rod 120 when the user inputs a rotation. The lower portion of the fixed body 1330 may have a shaft connection groove 1331 for the rod 120 to be inserted.

[0261] The fixed body 1330 is in a shape that is open at the top and closed at the bottom, and the interior can be used as the second space R2. The second space R2 can be arranged with an elastic portion 1340. The lower portion of the second space R2 can be formed with an elastic protrusion 1332 into which the elastic portion 1340 can be inserted and connected. The elastic protrusion 1332 can be configured to be inserted in cooperation with a hollow area of ​​the elastic portion 1340 such as a spring. Thus, the upper portion of the elastic portion 1340 is connected to the elastic fixed portion 1312 of the upper movable body 1310, and the lower portion of the elastic portion 1340 is connected to the elastic protrusion 1332 of the fixed body 1330, so that the elastic portion 1340 does not disengage during the compression / recovery of its shape and maintains a stable position.

[0262] At least one locking protrusion 1335 may be formed at a predetermined interval on the outer circumferential surface of the fixed body 1330. The locking protrusion 1335 may correspond to the position of the guide groove portion 1325. The outer diameter of the fixed body 1330 is smaller than the inner diameter of the side movable body 1320, so that it can be inserted into the first space R1 of the side movable body 1320. While the fixed body 1330 is inserted into the first space R1, the locking protrusion 1335 may move within the formation position of the guide groove portion 1325. Therefore, the movement range in the Z-axis direction from the fixed body 1330 to the side movable body 1320 [or the movable bodies 1310, 1320] may be limited within the predetermined length H formed by the guide groove portion 1325. The lower surface of the side movable body 1320 can be used to perform input to the input portion 1360, so the predetermined length H is preferably greater than the distance from the lower end of the side movable body 1320 to the input portion 1360.

[0263] In addition, the guide groove portion 1325 extends along the Z-axis direction with a predetermined length H and may have a fixed width in the X and Y directions. The width of the locking protrusion 1335 may correspond to the width of the guide groove portion 1325. Thus, when the movable body 1310, 1320 is pressed on the fixed body 1330, the movable body 1310, 1320 and the fixed body 1330 may move independently along the Z-axis direction, but when the movable body 1310, 1320 is rotated on the fixed body 1330, the movable body 1310, 1320 and the fixed body 1330 may rotate together.

[0264] The elastic part 1340 may be configured to provide a restoring force for restoring upward when the input device 1300 is pressed downward. Specifically, the elastic part 1340 may provide a restoring force for the pressure applied by the mobile bodies 1310 and 1320. The elastic part 1340 may be a coil spring. The elastic part 1340 may use a SWP tension spring, a piano wire, etc. In addition, in addition to the spring, a known elastic means such as a rubber dome may be used, and there is no limitation as long as it is a means that can restore the compressed state.

[0265] Fig.48 is a schematic diagram of input means of the input device 1300 according to an embodiment of the present invention.

[0266] Reference Figures 45 to 48 , the circuit unit 1350 can generate an input signal when sensing the input of the input unit 1360 based on the pressure applied by the mobile bodies 1310 and 1320. The circuit unit 1350 can be an FPCB1351. The circuit unit 1350 can be arranged on the upper part of the rotating load device 100. The circuit unit 1350 can be connected to a terminal unit 1355, which is used to receive power provided by an external power supply means (not shown) or can transmit a signal. The input signal generated by the circuit unit 1350 is transmitted to the processing unit 60 through the terminal unit 1355, so that the input can be processed.

[0267] When the user presses the input device 1300, the input unit 1360 may substantially receive the pressure and generate an input signal. The input unit 1360 may include a button. The input unit 1360 may be a switch, a tact switch, a dome switch, etc.

[0268] When the user presses the input device 1300, the lower end of the side movable body 1320 directly contacts the input part 1360, and an input signal can be generated based on the button pressing. The input part 1360 can be arranged in the circuit part 1350 and at the lower edge part 1327 of the side movable body 1320 [refer to Fig.48] is in contact with each other. The side movable body 1320 may be cylindrical, and the lower edge portion 1327 may be annular. Even if the input device 1300 is located at any position after rotating 360°, the lower edge portion 1327 may correspond to the top of the input portion 1360. Therefore, even if the input device 1300 rotates arbitrarily, the contact with the input portion 1360 will not be affected. Moreover, even if the input device 1300 rotates arbitrarily, there is no factor that hinders the connection of the line, so that there is no need to prepare additional lines for connecting the input device 1300 and the circuit portion 1350.

[0269] Encoder sensor 1370 can be used Fig.38 The encoder sensor 500. The encoder sensor 1370 can generate a corresponding rotation signal by sensing data such as the rotation speed, rotation position, rotation direction, and rotation angle of the rod 120 of the rotating load device 100. The rotation signal generated by the encoder sensor 1370 can also be transmitted to the signal unit 60 through the terminal unit 1355, and can also be transmitted to the control unit 50, so that the rotation torque of the rod 120 of the rotating load device 100 can also be controlled based on the rotation signal.

[0270] In the present invention, the input unit 1360 senses the linear input in the Z-axis direction of the mobile bodies 1310 and 1320, and the encoder sensor 1370 senses the rotational input during rotation. According to one embodiment, when the diameter of the rotary load device 100 is 60 mm and the height is 20 mm, the input device 1300 may have a diameter of about 32 mm. The starting distance (stroke) required for the input device 1300 to input may be about 2.5 mm.

[0271] Fig.49 is a schematic diagram of the working process of the input and rotation load module 1500 according to an embodiment of the present invention.

[0272] Reference Fig.49 In the left side diagram of FIG. 1 , the fixed body 1330 of the input device 1300 is inserted into the rod 120, and the locking protrusion 1335 of the fixed body 1330 is inserted into the guide groove 1325 of the side moving body 1320. The input device 1300 is substantially directly connected to the rod 120. If the input device 1300 or the moving bodies 1310 and 1320 are rotated, a rotation signal can be input through the rod 120. At the same time, the transmitted rotational touch can be received from the rotating load device 100.

[0273] Reference Fig.49As shown in the right side figure, the elastic part 1340 is arranged in the fixed body 1330, so that the movable bodies 1310 and 1320 can be pushed upward with the fixed body 1330 as a reference. The lower ends of the side movable body 1320 and the fixed body 1330 can be substantially located at the same height. If the rotation of the input device 1300 is stopped (or, during the rotation process) and the input device 1300 is pressed, the fixed body 1330 remains in position, and only the movable bodies 1310 and 1320 move downward D while the elastic part 1340 is squeezed (1340->1340'). The lower part 1327 of the side movable body 1320 applies pressure to the input part 1360, so that an input signal can be generated. If the pressure on the input device 1300 is released, the movable bodies 1310 and 1320 can return to their original positions based on the restoring force of the elastic part 1340.

[0274] Fig.50 is a schematic diagram of an input principle according to another embodiment of the present invention.

[0275] like Fig.50 As shown, according to another embodiment of the present invention, the input unit 1360 may include a Hall element without providing a button. The Hall element may be used as a Hall sensor using the Hall Effect principle. The Hall Effect is briefly described as follows. First, there is a current I in the conductor. ref When the current flows, the free electrons move in the direction of the current. At this time, if a magnetic field B is applied p Or make the magnetic field B p When the two ends of the conductor are close to each other, the free electrons moving based on the Hall effect are subjected to the Lorentz force according to Fleming's left-hand rule, causing the moving direction to bend. Based on the Hall effect, a potential difference is generated at both ends of the conductor in the direction perpendicular to the flow of the current. Based on this electromotive force, a Hall voltage V is formed in the circuit. hall If the direction of the current movement or the magnetic field changes, the Hall effect and the Hall voltage will also be opposite accordingly.

[0276] At least a portion of the lower portion 1327 of the side moving body 1320 may include a magnetic portion. The magnetic portion may also be formed by combining a permanent magnet in the lower portion 1327 of the side moving body 1320. When the distance PD between the lower portion 1327 of the side moving body 1320 and the input portion 1360 changes, the intensity and direction of the magnetic field applied to the Hall element by the magnetic portion of the lower portion 1327 may change. If a magnetic field is applied or the magnetic field changes, the Hall voltage may also change. Thus, the circuit portion 1350 may transmit the change in the Hall voltage to the processing portion 60, and the processing portion 60 may calculate the distance between the input portion 1360 and the side moving body 1320, and perform input processing based on the distance.

[0277] As described above, even if the side moving body 1320 is not in direct contact with the input unit 1360, the present invention can perform input processing based on the distance PD between the input unit 1360. Of course, the input unit 1360 includes both buttons and Hall elements, and the two methods can also be combined for input processing.

[0278] Fig.51 is a schematic diagram of an example use of an input and rotation load module 1500 according to an embodiment of the present invention. Fig.51 The figure shows that the display DP and the input and rotation load module 1500 are separated, but it is obvious that the display DP and the input and rotation load module 1500 can also be formed in one piece.

[0279] Reference Fig.51 (a), the user can view the menu items displayed on the display DP. The menu items can be viewed by rotating the input device 1300, and tactile feedback can be received during the rotation of the input device 1300. For example, a multimedia menu can provide tactile feedback such as music beats, and a phone menu can provide tactile feedback such as phone vibration.

[0280] Reference Fig.51 (b), the user can select and execute a specific menu item after viewing the menu items. The specific menu item can be executed by pressing the input device 1300. For example, the setting menu can be executed by pressing the input device 1300.

[0281] In addition, when multiple menu items need to be selected, such as dragging, the input device 1300 may be rotated while being pressed. Multiple menu items corresponding to the rotation completed while the input device 1300 is pressed may be selected.

[0282] As described above, the input and rotation load module 1500 of the present invention has the effects of rotation input as well as button input. This can be applied to Figures 39 to 44 The invention relates to all fields requiring rotation input and button input, such as electric ovens, washing machines and other household appliances, mouse wheels, keyboard wheels, wheels inside household appliances, jog dials for vehicles, etc., without limitation.

[0283] As described above, the present invention lists preferred embodiments for illustration and description, but the present invention is not limited to the above embodiments, and those skilled in the art can make various modifications and changes without departing from the spirit of the present invention. Such modifications and changes all belong to the scope of the present invention and the appended claims.

Claims

1. An input and rotating load module, wherein the rotating load device is connected to the input device, wherein: The input device comprises: a main body; and an elastic portion, which is arranged in the body portion and provides a restoring force to the applied pressure, The input device is connected to the rod of the rotating load device and can rotate. An input signal is generated by applying pressure to the main body of the input device.

2. The input and rotating load module of claim 1, wherein: The input device further includes an input portion that receives input based on pressure applied by the body.

3. The input and rotating load module of claim 2, wherein: The input unit includes a button, and receives pressing of the button based on pressure applied by the main body.

4. The input and rotating load module of claim 2, wherein: The main body comprises: a fixed body for connecting the rod of the rotating load device; The movable body is arranged on the upper part of the fixed body and can move up and down along the Z-axis direction, covers the fixed body, and provides an internal space for arranging the elastic part.

5. The input and rotating load module of claim 4, wherein: The mobile body comprises: an upper movable body, which is used to cover the upper part of the internal space; The side moving body provides a first space for accommodating the fixed body, and at least a portion of the outer circumference of the fixed body is inserted along the inner circumference of the side moving body.

6. The input and rotating load module of claim 5, wherein: The side moving body is in a cylindrical shape.

7. The input and rotating load module of claim 5, wherein: At least one locking protrusion is formed on the outer circumferential surface of the fixed body, and a guide groove portion is formed on the inner circumferential surface of the side movable body at a portion corresponding to the locking protrusion of the fixed body.

8. The input and rotating load module of claim 7, wherein: The guide groove portion is formed on the inner circumferential surface of the side moving body with a predetermined length from the upper portion to the central portion.

9. The input and rotating load module of claim 8, wherein: The elastic part applies an upward thrust to the movable body with the fixed body as a reference, and is locked at the lower end of the guide groove portion of the side movable body by the locking protrusion of the fixed body, thereby limiting the moving range of the side movable body.

10. The input and rotating load module of claim 8, wherein: The predetermined length is greater than a distance from a lower end of the side moving body to the input portion.

11. The input and rotating load module of claim 5, wherein: An elastic fixing portion for fixing the upper portion of the elastic portion is formed on the lower surface of the upper moving body.

12. The input and rotating load module of claim 4, wherein: A shaft connecting groove for inserting the rod is formed at the lower part of the fixing body.

13. The input and rotating load module of claim 4, wherein: The fixing body is open at the top and has a second space for accommodating the elastic part. An elastic protrusion for inserting the elastic part is formed in the second space.

14. The input and rotating load module of claim 2, wherein: include: a circuit unit that generates the input signal when the input unit senses an input based on the pressure applied by the body unit; as well as The terminal part is connected to the circuit part and is used for transmitting power or signals.

15. The input and rotating load module of claim 14, wherein: The circuit unit is arranged on an upper portion of the rotating load device.

16. The input and rotating load module of claim 1, wherein: The invention further includes an encoder sensor unit which generates a rotation signal by sensing data of at least one of a rotation speed, a rotation position, a rotation direction, and a rotation angle of a rod of the rotating load device.

17. The input and rotating load module of claim 4, wherein: The input unit includes a Hall element for generating a Hall voltage when a magnetic field is applied or a magnetic field changes. At least a portion of the lower portion of the moving body includes a magnetic portion.

18. The input and rotating load module of claim 17, wherein: The distance between the input part and the moving body is calculated using the intensity of the Hall voltage.

19. A method for generating an input signal using an input and a rotating load module, the method comprising the steps of: (a) viewing menu items by rotating an input device connected to a rod of a rotating load device; (b) Selecting a specific menu item by pressing the main body of the input device.

20. An input device connected to a rod of a rotating load device and generating an input signal, the device comprising: Body part; an elastic portion, which is arranged in the body portion and provides a restoring force to the applied pressure; as well as an input portion that receives input based on pressure applied by the main body portion; The main body comprises: a fixed body for connecting the rod of the rotating load device; A movable body, which is arranged on the upper part of the fixed body and can move up and down along the Z-axis direction, covers the fixed body, and provides an internal space for arranging the elastic part; The mobile body comprises: an upper movable body, which is used to cover the upper part of the internal space; A side movable body, which provides a first space for accommodating the fixed body, and at least a portion of the outer circumference of the fixed body is inserted into the inner circumference of the side movable body; An input signal is generated by applying pressure to the mobile body.

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