Somatosensory vibration generating device and somatosensory vibration presenting device

Abstract

The present application provides a somatic vibration generation device and a somatic vibration presentation device. The somatic vibration generation device can be installed on the somatic presentation device to generate appropriate vibrations corresponding to sound with a simple structure to make users experience. The device has: an electromagnetic actuator that drives a movable body in one direction of the vibration direction of the movable body to make it vibrate through the input driving signal, wherein the movable body is supported in a manner that can elastically vibrate relative to the fixed body; an alternating current signal input part that is input with an alternating current signal; and a rectifier part that performs half-wave rectification on the alternating current signal and outputs it to the electromagnetic actuator as a driving signal.

Description

[0001] This application is a divisional application of the patent application filed on November 27, 2020, with application number 202080082197.1 and invention title "Somatosensory Vibration Generating Device and Somatosensory Vibration Presentation Device". Technical Field

[0002] The present invention relates to a somatosensory vibration generating device that imparts a tactile sensation of vibration to a user, and a somatosensory vibration presentation device having the somatosensory vibration generating device. Background Technology

[0003] In the past, for sounds heard through speakers, headphones, etc., the idea was to use a vibrator that converts the sound into an electro-sound signal and generates vibrations through the sound signal, so that the sound could be experienced not only through the ears but also through the body or other parts of the body.

[0004] For example, Patent Document 1 discloses a simple wearable somatosensory vibration device. This device integrates an electromechanical vibration transducer in a pocket, which is roughly flush with the body via a strap. The electromechanical vibration transducer vibrates the sound signal obtained by electrically converting sound in the audible range. In Patent Document 1, the electromechanical vibration transducer has a plate-shaped damper on the upper part of the inner circumference of the housing, suspending a ring-shaped magnet with a ring-shaped yoke attached to one side. A convex magnetic yoke with protrusions spaced apart and inserted into the inner hole of the magnet is attached to the other side of the magnet. A coil is inserted into the gap between the convex part and the inner hole of the magnet, and the coil is installed in the center of the cover that blocks the housing. The electromechanical vibration transducer receives a sound signal processed by applying a low-pass filter, and a sound signal modulated to a single frequency in the low-frequency range by an envelope signal that correlates the amplitude height of the sound. A signal current flows through the coil in response to the input sound signal, thereby causing the electromechanical vibration transducer to vibrate in a waveform corresponding to the sound signal.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 7-245793 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] However, as a vibration device that generates vibrations in response to sound, it is desirable to use an electromagnetic actuator that drives in one direction to generate appropriate vibrations with a structure simpler than that of Patent Document 1.

[0010] The purpose of this invention is to provide a somatosensory vibration generating device and a somatosensory vibration presentation device, which can generate appropriate vibrations corresponding to sound with a simple structure so that users can experience them.

[0011] Methods for solving problems

[0012] The body vibration generating device of the present invention adopts a structure having the following components:

[0013] An electromagnetic actuator drives a movable body to vibrate in one direction of its vibration direction by an input drive signal, wherein the movable body is supported in a manner that enables it to vibrate elastically relative to a fixed body.

[0014] An AC signal input section is used to receive AC signals; and

[0015] The rectifier section performs half-wave rectification on the AC signal and outputs it as the drive signal to the electromagnetic actuator.

[0016] The somatosensory vibration presentation device of the present invention adopts a structure having the following components:

[0017] The above-mentioned structure of the somatosensory vibration generating device; and

[0018] The vibration transmission unit is vibrated by the somatosensory vibration generating device and transmits vibration to the user.

[0019] Invention Effects

[0020] According to the present invention, a user can experience appropriate vibrations corresponding to sound with a simple structure. Attached Figure Description

[0021] Figure 1 This is a side view of a vibration presentation device having a somatosensory vibration generating device according to an embodiment of the present invention.

[0022] Figure 2 This is a perspective view of the vibration presentation device having the somatosensory vibration generating device according to an embodiment of the present invention.

[0023] Figure 3 This is a rear view of a body vibration generating device according to an embodiment of the present invention.

[0024] Figure 4 This is a block diagram showing the main structural components of the body vibration generating device according to an embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional view of the planar side of the electromagnetic actuator of the body vibration generating device.

[0026] Figure 6This is a three-dimensional view of the back side of the electromagnetic actuator.

[0027] Figure 7 yes Figure 5 A sectional view along line AA.

[0028] Figure 8 This is an exploded 3D view of the electromagnetic actuator.

[0029] Figure 9 This is a diagram showing the magnetic circuit structure of the electromagnetic actuator.

[0030] Figure 10A This diagram shows the state in which the movable body is held away from the core assembly by the elastic part. Figure 10B It is a diagram representing a movable body that moves due to being attracted to the core assembly side by the magnetomotive force of the magnetic circuit.

[0031] Figure 11 This is a block diagram showing a modified example of the main structural components of the somatosensory vibration generating device.

[0032] Figure 12A and Figure 12B This is a diagram illustrating a modified version 1 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention.

[0033] Figure 13A and Figure 13B This is a diagram illustrating a modified version 2 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention.

[0034] Figure 14A and Figure 14B This is a diagram illustrating a modified 3 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention.

[0035] Figure 15 This is a diagram showing the waveform output by the modified 4 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention.

[0036] Figure 16 This is a diagram illustrating a modified 5 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention.

[0037] Figure 17 This figure shows an example of a somatosensory vibration presentation device that applies the somatosensory vibration generating device according to an embodiment of the present invention.

[0038] Figure 18 This figure shows an example of a somatosensory vibration presentation device that applies the somatosensory vibration generating device according to an embodiment of the present invention. Detailed Implementation

[0039] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0040] In this embodiment, an orthogonal coordinate system (X, Y, Z) is used for explanation. The figures described later also use a common orthogonal coordinate system (X, Y, Z). Hereinafter, the width, depth, and height of the vibration presentation device (hypersonic vibration presentation device) 200 with a haptic vibration generating device are the lengths in the X, Y, and Z directions, respectively, and the width, depth, and height of the electromagnetic actuator 10 are also correspondingly set as the lengths in the X, Y, and Z directions, respectively. Furthermore, the positive Z direction is the direction from which vibration is applied to the user (the part to which vibration is applied), and is designated as "upper side," while the negative Z direction is the direction away from the user, and is designated as "lower side."

[0041] (The overall structure of the vibration presentation device 200 with the somatosensory vibration generation device 100)

[0042] Figure 1 and Figure 2 The vibration presentation device 200 shown includes: a haptic vibration generating device 100 having an electromagnetic actuator 10; and a vibration transmission unit 2 that imparts vibrations generated by the haptic vibration generating device 100 to the user for an experience. The vibration presentation device 200 uses the haptic vibration generating device 100 to impart vibrations to the user corresponding to an input AC signal. For example, the haptic vibration generating device 100 is used in gaming devices (e.g.,...). Figure 17 The game controller 300 shown Figure 18 The game chair 400 shown is an example. Alternatively, the vibration presentation device 200 can be used with the game controller 300 or the game chair 400, for example, to deliver vibrations synchronized with the AC signal of the sound to the user of the game controller 300 or the game chair 400 via the vibration transmission unit 2.

[0043] exist Figure 1 and Figure 2 In the vibration presentation device 200 shown, the electromagnetic actuator 10 of the somatosensory vibration generating device 100 is disposed between the vibration transmission section 2 and the base 3, which is the back part of the device, disposed on the back side of the vibration transmission section 2.

[0044] On the rear side, the vibration transmission part 2 is fixed to the movable body 40 of the electromagnetic actuator 10 (see reference). Figure 3 The face fixing part 44 of the electromagnetic actuator 10 is also present. Furthermore, the base 3 is configured to face the vibration transmission part 2, and the fixing body of the electromagnetic actuator 10 is fixed to the base 3 via the leg part 4. Thus, the electromagnetic actuator 10 is configured to be interconnected between the central portions of the vibration transmission part 2 and the base 3.

[0045] Vibration transmission unit 2 and movable body 40 of electromagnetic actuator 10 (see reference) Figure 5 and Figure 6 The electromagnetic actuator 10 is driven as a single unit. When the user's body (fingers, hands, limbs, torso, etc.) is located on surface 2a, the vibration direction of the movable body 40 in the electromagnetic actuator 10 is preferably perpendicular to the surface 2a. In this embodiment, the vibration direction, i.e., the Z-direction, of the movable body 40 in the electromagnetic actuator 10 is set to be the same as the direction perpendicular to the surface 2a. Therefore, compared to the case where the vibration direction is different from the direction perpendicular to the surface 2a, the electromagnetic actuator 10 can directly drive the vibration transmission unit 2 with stronger vibration. In this embodiment, the user can strongly experience vibrations corresponding to audio (sound) sources, etc.

[0046] Therefore, when the user is in contact with the vibration transmission unit 2, and the vibration is transmitted to the user via the vibration transmission unit 2, the movable body 40 can be moved to impart vibrations corresponding to the audio source.

[0047] Furthermore, in this embodiment, the vibration transmission unit 2 is formed in the shape of a rectangular plate, but it is not limited to this. It can be configured arbitrarily as long as it can impart vibration to the user in contact with it. The vibration transmission unit 2 can also be composed of multiple materials and components.

[0048] <Vibration Generator 100>

[0049] The body vibration generating device 100 performs half-wave rectification on the input AC signal (e.g., an AC signal as an audio source) and inputs it as a drive signal to the electromagnetic actuator 10. As a result, the body vibration generating device 100 drives the electromagnetic actuator 10 synchronously with the input AC signal to the body vibration generating device 100.

[0050] Figure 1 , Figure 3 and Figure 4The illustrated haptic vibration generating device 100 includes an electromagnetic actuator 10 that drives in one direction, an AC signal input unit 120, and a half-wave rectifier 130. Furthermore, in this embodiment, the AC signal input unit 120 and the half-wave rectifier 130 are described as part of the control unit 1. Driving in one direction means that, relative to a fixed body supported by an elastic body to be movable in the vibration direction, the movable body is driven in one direction (one direction) of the vibration direction by energizing a coil, and then reset (restored) by the force of the elastic body. In this embodiment, the electromagnetic actuator 10 is configured to drive a movable body that reciprocates along a straight line in one direction (one direction) along a straight line, and then reset in the opposite direction along a straight line by the force of the elastic body. As long as the movable body is driven in one direction, the electromagnetic actuator can be configured arbitrarily.

[0051] First, we will describe an example of an electromagnetic actuator 10, which is an electromagnetic actuator included in the body vibration generating device 100.

[0052] <Structure of Electromagnetic Actuator 10>

[0053] Figure 5 This is a planar perspective view of the electromagnetic actuator 10 of the body vibration generating device 100 according to an embodiment of the present invention. Figure 6 This is a perspective view of the bottom side of the electromagnetic actuator 10. Additionally, Figure 7 yes Figure 5 AA-line sectional view, Figure 8 This is an exploded perspective view of the electromagnetic actuator 10.

[0054] Figures 5-8 The electromagnetic actuator 10 shown functions as a vibration source for the vibration transmission unit 2.

[0055] The electromagnetic actuator 10 has a fixed body 30 and a movable body 40. The movable body 40 is fixed to the vibration transmission part 2 and supported so as to be able to elastically vibrate relative to the fixed body 30. The electromagnetic actuator 10 drives the movable body 40 in one direction and moves it in the opposite direction by the force of the force-generating component (elastic part 50), thereby causing the movable body 40 to perform linear reciprocating movement (including vibration).

[0056] The electromagnetic actuator 10 transmits an AC signal, such as a vibration corresponding to an audio source, to the user of the vibration transmission unit 2 (e.g., a user in contact with the vibration transmission unit 2) so that the user can experience the vibration.

[0057] The electromagnetic actuator 10 includes: a fixed body 30 having a core assembly 20 formed by winding a coil 22 on a core 24 and a base portion 32; a movable body 40 having a magnetic yoke 41 with a magnetic body; and elastic portions 50 (50-1, 50-2) that elastically support the movable body 40 so that it can move relative to the fixed body 30 in the vibration direction.

[0058] The electromagnetic actuator 10 drives the movable body 40, which is movably supported by the elastic part 50, to move in one direction relative to the fixed body 30. Furthermore, movement of the movable body 40 in the opposite direction is achieved by the force exerted by the elastic part 50.

[0059] The electromagnetic actuator 10 vibrates the magnetic yoke 41 of the movable body 40 via the core assembly 20. Specifically, the movable body 40 vibrates due to the attraction force of the core 24 energized by the energized coil 22 and the force of the elastic parts 50 (50-1, 50-2). In this embodiment, the electromagnetic actuator 10 is driven by the action of an electromagnet.

[0060] The electromagnetic actuator 10 is configured as a flat shape with the Z-direction as the thickness direction. The electromagnetic actuator 10 causes the movable body 40 to vibrate relative to the fixed body 30 in the Z-direction, i.e., the thickness direction. In the movable body 40, one side of the back surface of the watch, which is separately arranged in the thickness direction of the electromagnetic actuator 10 itself, approaches and separates relative to the other side in the Z-direction.

[0061] In this embodiment, the electromagnetic actuator 10 moves the movable body 40 in the negative Z direction by the adsorption force of the core 24, and moves the movable body 40 in the positive Z direction by the force of the elastic parts 50 (50-1, 50-2).

[0062] In the electromagnetic actuator 10 of this embodiment, the movable body 40 is elastically supported by a plurality of elastic portions 50 (50-1, 50-2) arranged in a direction orthogonal to the Z direction at a position that is point-symmetric with respect to the movable center of the movable body 40, but is not limited to this structure.

[0063] <Fixed Body 30>

[0064] like Figure 7 and Figure 8 As shown, the fixing body 30 has a core assembly 20 and a base portion 32, the core assembly 20 having a coil 22 and a core 24.

[0065] The base portion 32 has the core assembly 20 fixed to it and supports the movable body 40 in a free-vibrating manner via the elastic portions 50 (50-1, 50-2). The base portion 32 is a flat component that forms the bottom surface of the electromagnetic actuator 10. The base portion 32 has a mounting portion 32a that fixes one end of the elastic portions 50 (50-1, 50-2) in such a way that it clamps the core assembly 20 in the X direction. The mounting portions 32a are arranged at equal intervals from the core assembly 20. Furthermore, this interval is the interval that forms the deformation region of the elastic portions 50 (50-1, 50-2).

[0066] like Figure 8 As shown, the mounting part 32a has a fixing hole 321 for fixing the elastic part 50 (50-1, 50-2) and a mounting hole 321 for fixing the base part 32 to the base 3 (see reference). Figure 1 The fixing holes 322 are provided at both ends of the mounting portion 32a such that the fixing holes 321 are sandwiched in the depth (Y direction). Figure 1 As shown, via the tubular legs 4 (see reference) Figure 1 The base portion 32 is fixed to the base 3. Thus, the base portion 32 is completely and stably fixed to the base 3 (see reference). Figure 1 ).

[0067] In this embodiment, the base portion 32 is configured such that one side of the mounting portion 32a and the other side of the mounting portion 32a are separated from the bottom portion 32b in the width direction (X direction). A concave portion with a bottom portion 32b having a height lower than that of the mounting portion 32a is provided between the mounting portions 32a. The space inside the concave portion, i.e., the surface side of the bottom portion 32b, is the space that ensures the elastic deformation area of ​​the elastic portions 50 (50-1, 50-2) and the space that ensures the movable area of ​​the movable body 40 supported by the elastic portions 50 (50-1, 50-2).

[0068] The bottom part 32b is rectangular, with an opening 36 formed in its center, and the core assembly 20 is located in the opening 36.

[0069] The core assembly 20 is fixed with a portion inserted into the opening 36. Specifically, the lower portion of the winding tube 26 and the lower part of the coil 22 of the core assembly 20 are inserted into the opening 36, and the core 24 is fixed on the bottom portion 32b when viewed from the side. As a result, the length (thickness) in the Z direction is thinner compared to a structure where the core assembly 20 is mounted on the bottom portion 32b. In addition, since a portion of the core assembly 20, specifically the bottom portion, is fixed with a portion embedded in the opening 36, the core assembly 20 is securely fixed in a state where it is difficult to detach from the bottom portion 32b.

[0070] The opening 36 has a shape corresponding to the shape of the core assembly 20. In this embodiment, the opening 36 is formed into a square shape. This allows the core assembly 20 and the movable body 40 to be positioned in the center of the electromagnetic actuator 10, so that the electromagnetic actuator 10 as a whole appears approximately square when viewed from above. Alternatively, the opening 36 may also be rectangular (including square).

[0071] The core assembly 20, in cooperation with the elastic parts 50 (50-1, 50-2), causes the magnetic yoke 41 of the movable body 40 to vibrate (perform reciprocating linear motion in the Z direction).

[0072] In this embodiment, the core assembly 20 is formed into a rectangular plate shape. Magnetic pole portions 242 and 244 are disposed on the two side portions of the rectangular plate shape separated in the length direction. These magnetic pole portions 242 and 244 are arranged to be spaced apart by a gap G in the X direction (see reference). Figure 7 The lower surfaces of the adsorbed faces 46 and 47 of the movable body 40 are opposite each other. The magnetic pole portions 242 and 244, on their opposing faces 20a and 20b, which are the upper surfaces, are opposite to the lower surfaces (more specifically, a part of the lower surfaces) of the adsorbed faces 46 and 47 of the magnetic yoke 41 in the vibration direction of the movable body 40.

[0073] In this embodiment, the core assembly 20 is formed as a rectangular plate, with magnetic pole portions 242 and 244 on the two sides separated in the length direction.

[0074] The core assembly 20 is formed by winding the coil 22 around the outer periphery of the core 24 via the winding tube 26. For example... Figure 7 and Figure 8 As shown, the core assembly 20 fixes the winding shaft of the coil 22 to the base portion 32 with the mounting portions 32a, which are separated from each other in the base portion 32, facing each other. In this embodiment, the core assembly 20 is disposed in the central portion of the base portion 32, specifically in the central portion of the bottom portion 32b.

[0075] like Figure 7 As shown, the core assembly 20 is fixed to the bottom surface 32b with the core 24 parallel to it and positioned across the opening 36 on the bottom surface. The core assembly 20 is secured by screws 68 (see reference 1) which serve as fixing components. Figures 6-8 The coil 22 and the portion wound around the coil 22 (core body 241) are fixed in the opening 36 of the base portion 32.

[0076] Specifically, with the coil 22 positioned within the opening 36, the screw 68 passes through the fixing hole 28 and the fixing hole 33 of the bottom part 32b (see reference). Figure 6 as well as Figure 7The core assembly 20 and the bottom part 32b are fastened together by screws 68 to secure the coil 22 to the bottom part 32b. The two sides of the opening 36 separated in the X direction and the magnetic pole parts 242, 244 are joined together at two points on the axis of the coil 22 by screws 68.

[0077] Coil 22 is a solenoid that generates a magnetic field when energized by the electromagnetic actuator 10. Coil 22, together with core 24 and movable body 40, constitutes a magnetic circuit that attracts and moves movable body 40. Furthermore, via half-wave rectifier 130 (see reference...) Figure 4 Input from AC signal input section 120 (see reference) to coil 22 Figure 4 The drive signal is supplied to the electromagnetic actuator 10 via a half-wave rectifier 130. For example, an AC drive signal is supplied to the electromagnetic actuator 10 via a half-wave rectifier 130, thereby supplying power to the coil 22 to drive the electromagnetic actuator 10.

[0078] The core 24 has a core body 241 for winding the coil 22 and magnetic pole portions 242 and 244 disposed at both ends of the core body 241 and energized by energizing the coil 22.

[0079] The core 24 can be any structure as long as it has a length that forms magnetic poles 242 and 244 at both ends when energized by the coil 22. For example, it can be formed as a straight (I-type) flat plate, but in this embodiment, the core 24 is formed as an H-type flat plate when viewed from above.

[0080] Compared to the I-type core, the H-type core 24 has a shape in which the gap sides at both ends of the core body 241 are longer than the width of the core body around the coil 22 and widen in the front-back direction (Y direction). Therefore, with the H-type core 24, compared to the I-type core, magnetic reluctance can be reduced, and the efficiency of the magnetic circuit can be improved. In addition, the coil 22 in the core 24 can be positioned simply by inserting the winding tube 26 between the portions of the magnetic pole portions 242 and 244 that extend in the Y direction from both sides of the core body 241. Therefore, in the electromagnetic actuator 10, it is not necessary to provide a separate positioning component for the winding tube 26 relative to the core 24.

[0081] The core 24 has magnetic pole portions 242 and 244 protruding from both ends of the plate-shaped core body 241 on which the coil 22 is wound, respectively, in a direction orthogonal to the winding axis of the coil 22.

[0082] Core 24 is a magnetic material, such as formed from silicon steel sheet, permalloy, ferrite, etc. Alternatively, core 24 can also be made of electromagnetic stainless steel, sintered materials, MIM (metal injection molding) materials, laminated steel sheets, electro-galvanized steel sheets (SECC), etc.

[0083] Magnetic pole portions 242 and 244 are respectively provided protruding from the two openings of the coil 22 in the Y direction.

[0084] The magnetic poles 242 and 244 are energized by energizing the coil 22, attracting and moving the yoke 41 of the movable body 40, which is separated in the vibration direction (Z direction). Specifically, the magnetic poles 242 and 244 attract the adsorption surfaces 46 and 47 of the movable body 40, which are arranged opposite each other with a gap G, through the generated magnetic flux.

[0085] The magnetic pole portions 242 and 244 are plate-like bodies extending in the Y direction, which is perpendicular to the core body 241 extending in the X direction. The magnetic pole portions 242 and 244 are longer in the Y direction, so the areas of the opposing surfaces 20a and 20b opposite to the magnetic yoke 41 are larger than those of the structures formed at both ends of the core body 241.

[0086] On the magnetic pole portions 242 and 244, a fixing hole 28 is formed in the central part in the Y direction, and the base portion 32 is fixed by a screw 68 inserted into the fixing hole 28.

[0087] The winding tube 26 is configured to surround the core body 241 of the core 24. The winding tube 26 is formed, for example, of a resin material. This ensures electrical insulation from other metal components (e.g., the core 24), thus improving the reliability of the circuit. The use of a highly fluid resin in the resin material results in good formability, allowing for a thinner wall thickness while ensuring the strength of the winding tube 26. Furthermore, the winding tube 26 is assembled with segments 26a and 26b in a manner that clamps the core body 241, forming a cylindrical body that covers the periphery of the core body 241. Additionally, flanges are provided at both ends of the cylindrical body on the winding tube 26, specifying that the coil 22 is located on the outer periphery of the core body 241.

[0088] <40 movable parts>

[0089] The movable body 40 is configured to be positioned opposite the core assembly 20, spaced apart by a gap G in a direction orthogonal to the vibration direction (Z direction). The movable body 40 is configured to reciprocate freely relative to the core assembly 20 in the vibration direction.

[0090] The movable body 40 has a magnetic yoke 41, including movable body side fixing parts 54 fixed to the elastic parts 50-1 and 50-2 of the magnetic yoke 41.

[0091] The movable body 40 is configured in a state of being suspended in a substantially parallel separation (reference normal position) by means of elastic parts 50 (50-1, 50-2) so that it can move relative to the bottom part 32b in the contact separation direction (Z direction).

[0092] The magnetic yoke 41 is a plate-shaped body composed of magnetic materials such as electromagnetic stainless steel, sintered materials, MIM (metal injection molding) materials, laminated steel plates, and electro-galvanized steel plates (SECC). In this embodiment, the magnetic yoke 41 is formed by processing an SECC plate.

[0093] The magnetic yoke 41 is fixed to the elastic portions 50 (50-1, 50-2) of the adsorption surfaces 46 and 47 separated in the X direction, respectively, with a gap G (see reference) relative to the core assembly 20 in the vibration direction (Z direction). Figure 7 It is suspended in a counter-positioning manner.

[0094] The magnetic yoke 41 has a vibration transmission unit 2 installed (see reference). Figure 1 The face fixing part 44 and the adsorbed face parts 46 and 47 are arranged opposite to the magnetic pole parts 242 and 244.

[0095] In this embodiment, the magnetic yoke 41 is formed as a rectangular frame with an opening 48 in the center surrounded by a face fixing part 44 and adsorbed faces 46, 47.

[0096] The opening 48 is opposite to the coil 22. In this embodiment, the opening 48 is located directly above the coil 22, and the opening shape of the opening 48 is formed so that the coil 22 portion of the core assembly 20 can be inserted when the magnetic yoke 41 moves to the bottom part 32b side. The magnetic yoke 41 adopts a structure with the opening 48, thereby making the overall thickness of the electromagnetic actuator thinner compared to the case without the opening 48.

[0097] In addition, by placing the coil 22 of the core assembly 20 inside the opening 48, and therefore not placing the yoke 41 near the coil 22, the reduction in conversion efficiency caused by leakage flux from the coil 22 can be suppressed, and high output can be achieved.

[0098] The face fixing part 44 has a fixing surface 44a that is fixed to the vibration transmission part 2. The fixing surface 44a is fixed to the vibration transmission part 2 at a position surrounding the core assembly 20 by fixing components such as screws inserted into the face fixing hole 42.

[0099] The adsorbed faces 46 and 47 are attracted to the magnetized magnetic poles 242 and 244 in the core assembly 20, and are fixed with elastic parts 50 (50-1 and 50-2).

[0100] Movable body fixing parts 54 with elastic parts 50-1 and 50-2 are fixed in a stacked state on the adsorption surfaces 46 and 47 respectively. The adsorption surfaces 46 and 47 are provided with cutouts 49 that avoid the heads of screws 64 when moving towards the bottom surface 32b.

[0101] Therefore, even if the movable body 40 moves towards the bottom part 32b and the attracted parts 46 and 47 approach the magnetic pole parts 242 and 244, it will not come into contact with the screw 68 that fixes the magnetic pole parts 242 and 244 to the bottom part 32b, thus ensuring the movable area of ​​the corresponding Z-direction magnetic yoke 41.

[0102] <Elastic section 50 (50-1, 50-2)>

[0103] The elastic parts 50 (50-1, 50-2) support the movable body 40 so that it can move freely relative to the fixed body 30. The elastic parts 50 (50-1, 50-2) are configured as plates. As long as the elastic parts 50 (50-1, 50-2) are components that support the movable body 40 that is driven in one direction relative to the fixed body 30 in the vibration direction, they may not be plate-shaped, but may be elastic bodies made of any shape and material.

[0104] The elastic portions 50 (50-1, 50-2) support the upper surface of the movable body 40 at the same height as the upper surface of the fixed body 30, or parallel to each other on the lower surface side of the upper surface of the fixed body 30 (in this embodiment, the upper surface of the core assembly 20). Furthermore, the elastic portions 50-1 and 50-2 have a shape that is centrally symmetrical (point-symmetric or line-symmetric) with respect to the movable body 40, and in this embodiment, they are similarly formed components.

[0105] The elastic part 50 arranges the magnetic yoke 41 in a manner that is approximately parallel to the magnetic pole portions 242 and 244 of the core 24 of the fixed body 30, separated by a gap G. The elastic part 50 supports the lower surface of the movable body 40 so that it can move freely in the vibration direction at a position near the bottom part 32b at a level approximately the same as the height of the upper surface of the core assembly 20.

[0106] The elastic part 50 is a leaf spring having a serpentine-shaped elastic arm part 56 that connects the fixed part 52 on the fixed body side and the fixed part 54 on the movable body side.

[0107] The elastic part 50 has a fixed body side fixing part 52 installed on the surface of the mounting part 32a, and a movable body side fixing part 54 installed on the surface of the adsorption part 46 and 47 of the magnetic yoke 41, so that the serpentine elastic arm part 56 is parallel to the bottom part 32b and the movable body 40 is installed.

[0108] The fixed body side fixing part 52 contacts the mounting part 32a and is fixed by engaging with screw 62, and the movable body side fixing part 54 contacts the adsorbed face parts 46 and 47 and is fixed by engaging with screw 64.

[0109] The serpentine elastic arm 56 is an arm with a serpentine shape. The serpentine elastic arm 56 has a serpentine shape, thereby ensuring the deformable length required for the vibration of the movable body 40 between the fixed body side fixing part 52 and the movable body side fixing part 54 and on the plane orthogonal to the vibration direction (the plane formed in the X and Y directions).

[0110] In this embodiment, the serpentine elastic arm 56 extends and folds back along the opposing direction of the fixed body-side fixing portion 52 and the movable body-side fixing portion 54, and the ends that engage with the fixed body-side fixing portion 52 and the movable body-side fixing portion 54 are formed at positions offset in the Y direction. The serpentine elastic arm 56 is arranged in a point-symmetric or line-symmetric position relative to the center of the movable body 40.

[0111] Thus, the movable body 40 is supported on both sides by the serpentine elastic arm 56 of the serpentine spring, thereby enabling stress dispersion during elastic deformation. That is, the elastic part 50 allows the movable body 40 to move in the vibration direction (Z direction) without tilting relative to the core assembly 20, thereby improving the reliability of the vibration state.

[0112] Each elastic part 50 has at least two or more serpentine elastic arms 56. As a result, compared with the case where there is only one serpentine elastic arm 56, the stress during elastic deformation is dispersed, which can improve reliability and improve the balance of support for the movable body 40, thus improving stability.

[0113] In this embodiment, the leaf spring, which serves as the elastic part 50, is made of a magnetic material. Furthermore, the movable body-side fixing part 54 of the elastic part 50 is positioned opposite or above the two ends of the core (magnetic pole parts 242, 244) along the coil winding axis, functioning as a magnetic circuit. In this embodiment, the movable body-side fixing part 54 is fixed to the upper side of the adsorption surfaces 46, 47 in a stacked state.

[0114] This allows for an increase in the thickness H of the adsorption surfaces 46 and 47 opposite to the magnetic pole portions 242 and 244 of the core assembly (see reference). Figure 7 The thickness of the magnetic body is determined by the thickness of the elastic part 50. Since the thickness of the elastic part 50 is the same as the thickness of the magnetic yoke 41, the cross-sectional area of ​​the magnetic body portion opposite to the magnetic pole portions 242 and 244 can be doubled. As a result, compared to the case where the leaf spring is non-magnetic, the magnetic circuit can be expanded, the reduction in characteristics caused by magnetic saturation in the magnetic circuit can be mitigated, and the output can be improved.

[0115] Furthermore, in the electromagnetic actuator 10 of this embodiment, a detection unit may also be provided. This detection unit detects the amount of pressure exerted by the user on the movable body 40 via the vibration transmission unit 2, which is fixed by the face fixing unit 44, and can generate vibration based on the amount of pressure and the input AC signal. For example, as a detection unit for detecting the amount of pressure, a sensor for detecting the strain of the elastic part 50 may also be provided.

[0116] Figure 9 This is a diagram showing the magnetic circuit of the electromagnetic actuator 10. Furthermore, Figure 9 It is along Figure 5 A perspective view of the electromagnetic actuator 10 with the AA line cut off; the unshown portion of the magnetic circuit also has the same magnetic flux flow M as the shown portion. Additionally, Figure 10A and Figure 10B This diagram illustrates the operation of the electromagnetic actuator 10 and is a cross-sectional view schematically showing the movement of the movable body 40 based on the magnetic circuit. More specifically... Figure 10A The diagram shows the state in which the movable body 40 is held in a position separated from the core assembly 20 by the elastic part 50. Figure 10B This refers to the movable body 40 that moves because the magnetomotive force through the magnetic circuit is attracted to the side of the core assembly 20.

[0117] Specifically, when coil 22 is energized, core 24 is energized and generates a magnetic field, and the two ends of core 24 (magnetic pole portions 242, 244) become magnetic poles. For example, as Figure 9 As shown, in the core 24, the magnetic pole portion 242 becomes the N pole, and the magnetic pole portion 244 becomes the S pole. Thus, a magnetic circuit, represented by the flow of magnetic flux M, is formed between the core assembly 20 and the yoke 41. The flow of magnetic flux M in this magnetic circuit flows from the magnetic pole portion 242 to the adsorption surface 46 of the opposing yoke 41, and through the surface fixing portion 44 of the yoke 41, from the adsorption surface 47 to the magnetic pole portion 244 opposite to the adsorption surface 47.

[0118] In this embodiment, the elastic part 50 is also a magnetic body, so the magnetic flux (represented by the flow of magnetic flux M) flowing to the attracted surface 46 passes through the attracted surface 46 of the yoke 41 and the movable body side fixing part 54 of the elastic part 50-1 that overlaps with it. Then, the magnetic flux (the flow of magnetic flux M) reaches the movable body side fixing part 54 of the elastic part 50-2 from the movable body side fixing part 54, and reaches the attracted surface 47 and the two ends of the movable body side fixing part 54 of the elastic part 50-2 from both ends of the attracted surface 46 via the surface fixing part 44.

[0119] Therefore, according to the principle of an electromagnetic solenoid, the magnetic pole portions 242 and 244 of the core assembly 20 generate an attractive force F that attracts the attracted portions 46 and 47 of the yoke 41. Thus, the attracted portions 46 and 47 of the yoke 41 are attracted by both magnetic pole portions 242 and 244 of the core assembly 20, and the coil 22 is inserted into the opening 48 of the yoke 41. Furthermore, the movable body 40 containing the yoke 41 moves in the direction of F against the force of the elastic portion 50 (see reference). Figure 10A as well as Figure 10B ).

[0120] Furthermore, when the energization to coil 22 is released, the magnetic field disappears, the attractive force F of movable body 40 caused by core assembly 20 disappears, and it moves to its original position (moving in the -F direction) through the force of elastic part 50.

[0121] By repeatedly performing this action, the electromagnetic actuator 10 causes the movable body 40 to reciprocate linearly in the Z direction, thereby generating vibration in the Z direction.

[0122] By causing the movable body 40 to reciprocate linearly, the vibration transmission part 2, to which the movable body 40 is fixed, also moves in the Z direction following the movable body 40.

[0123] A core assembly 20 having a core 24 with a coil 22 wound on it is fixed to a fixed body 30. The core assembly 20 is disposed in the opening 48 of a magnetic yoke 41 of a movable body 40 supported by an elastic part 50 and movable in the Z direction relative to the fixed body 30.

[0124] Therefore, it is not necessary to overlap the components of the fixed body and the movable body in the Z direction to generate magnetic force by driving the movable body in the Z direction (for example, arranging the coil and the magnet opposite each other in the Z direction), so the thickness in the Z direction can be reduced as an electromagnetic actuator. In addition, without using a magnet, vibration can be imparted to the vibration transmission section 2 by reciprocating linear drive of the movable body 40.

[0125] This simplifies the support structure, making the design simpler, enabling space-saving design, and allowing for a thinner electromagnetic actuator 10. Furthermore, since no magnets are used, the cost is significantly lower compared to vibration devices (actuators) that use magnets.

[0126] The driving principle of the electromagnetic actuator 10 will be briefly explained below. The electromagnetic actuator 10 can also be driven by generating resonance through the supplied pulse using the following motion equation (1) and circuit equation (2). In this embodiment, driving is performed by inputting short pulses, but it can also be driven by generating arbitrary vibrations without using short pulses.

[0127] Furthermore, the movable body 40 in the electromagnetic actuator 10 reciprocates based on equations (1) and (2).

[0128] [Mathematical Expression 1]

[0129]

[0130] m: mass [kg]

[0131] x(t): Displacement [m]

[0132] K f Thrust constant [N / A]

[0133] i(t): Current [A]

[0134] K sp Spring constant [N / m]

[0135] D: Attenuation coefficient [N / (m / s)]

[0136] [Mathematical Expression 2]

[0137]

[0138] e(t): Voltage [V]

[0139] R: Resistance [Ω]

[0140] L: Inductance [H]

[0141] K e Back electromotive force constant [V / (rad / s)]

[0142] That is, the mass m [Kg], displacement x(t) [m], and thrust constant K in the electromagnetic actuator 10 f [N / A], current i(t) [A], spring constant K sp The values ​​of [N / m] and attenuation coefficient D [N / (m / s)] can be appropriately varied within the range satisfying equation (1). Additionally, the voltage e(t) [V], resistance R [Ω], inductance L [H], and back electromotive force constant K... e [V / (rad / s)] can be appropriately varied within the range that satisfies equation (2).

[0143] Thus, the electromagnetic actuator 10 consists of the mass m of the movable body 40 and the spring constant K of the metal spring (elastic body, in this embodiment, a leaf spring) that serves as the elastic part 50. sp Decide.

[0144] Furthermore, in the electromagnetic actuator 10, screws 62 and 64 are used to fix the base portion 32 to the elastic portion 50 and to fix the elastic portion 50 to the movable body 40. As a result, the elastic portion 50, which needs to be firmly fixed relative to the fixed body 30 and the movable body 40 in order to drive the movable body 40, can be mechanically and firmly fixed in a state that allows for reprocessing.

[0145] <Control Unit 1>

[0146] Control unit 1 controls the drive of electromagnetic actuator 10, which drives vibration transmission unit 2 (see reference 2) supported for elastic vibration in one direction of the vibration direction. Figure 1 ).

[0147] The control unit 1 supplies a drive current to the electromagnetic actuator 10, pulling the movable body 40 into the fixed body 30 side, thereby causing the vibration transmission unit 2 to move in the -Z direction relative to the base 3 to which the fixed body 30 is fixed. By stopping the supply of drive current to the coil 22, the movable body 40 is released, and through the elastic part 50, the movable body 40 moves in the opposite direction to the direction in which it was pulled in.

[0148] The control unit 1 performs half-wave rectification on the input AC signal and outputs it as a drive signal to the coil 22 of the electromagnetic actuator 10.

[0149] Figure 4 The AC signal input unit 120 shown outputs the input AC signal to the half-wave rectifier unit 130. For example, if an audio source is input to the AC signal input unit 120, the AC signal of the input audio source will output the AC signal of the input audio source to the half-wave rectifier unit 130.

[0150] A half-wave rectifier 130 is disposed between the AC signal input section 120 and the electromagnetic actuator 10. The half-wave rectifier 130 removes half-waves of the AC signal input via the AC signal input section 120, i.e., performs half-wave rectification on the sine wave of the AC signal, and outputs it as a drive signal to the coil 22 of the electromagnetic actuator 10. As a result, the electromagnetic actuator 10 drives the movable body 40 synchronously with the input of the audio source to the haptic vibration generating device 100. Specifically, after receiving the half-wave rectified drive signal from the half-wave rectifier 130, the movable body 40 moves relative to the fixed body 30 in one direction, in this case, the -Z direction, in the electromagnetic actuator 10, and then moves in the opposite direction, i.e., the Z direction, by the restoring force (recovery force) of the elastic section 50.

[0151] By moving the movable body 40, the user can be given a vibration via the vibration transmission unit 2 (see reference 2). Figure 1 and Figure 2 The user experiences vibrations synchronized with the input of an audio source to the somatosensory vibration generating device 100.

[0152] Furthermore, the drive signal output from the half-wave rectifier 130 can also be amplified based on the AC signal input from the AC signal input section 120 and output to the electromagnetic actuator 10. The half-wave rectifier 130 can also be configured, for example, as a rectifier circuit using rectifier diodes.

[0153] In this embodiment, such as Figure 3 As shown, the half-wave rectifier 130 is configured to be mounted on the bottom portion 32b of the electromagnetic actuator 10, but is not limited thereto. For example, as Figure 11 As shown, the half-wave rectifier 130 may not be mounted on the electromagnetic actuator 10, but may be installed together with the AC signal input section 120 as a circuit section 140.

[0154] exist Figure 11 In the illustrated haptic vibration generating device 100A, the circuit section 140 of the control section 1A performs half-wave rectification on the AC signal from the audio source input to the AC signal input section 120 via the half-wave rectifier section 130, amplifies it via the amplifier section 150, and then inputs it to the electromagnetic actuator 10. Thus, the electromagnetic actuator 10 can drive the movable body 40 in a manner synchronized with the input to the audio source into the AC signal input section 120, and impart vibration to the user via the vibration transmission section 2, allowing the user to experience the vibration.

[0155] Figures 12A to 16 These are figures 1 to 5 illustrating the modifications of the half-wave rectifier section of the body vibration generating device according to embodiments of the present invention.

[0156] <Transformation 1>

[0157] Figure 12A and Figure 12B This is a diagram illustrating a modified version 1 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention. Figure 12A This shows the structural diagram of deformation 1. Figure 12B This is a diagram showing the drive current input to the electromagnetic actuator 10 via the half-wave rectifier 130A.

[0158] Figure 12A The illustrated sonic vibration generating device 100a has a rectifier circuit with a forward-inserted rectifier diode 132, serving as a half-wave rectifier section 130A disposed between the AC signal input section 120 and the electromagnetic actuator 10. According to... Figure 12A The half-wave rectifier circuit shown is the half-wave rectifier section 130A, which becomes... Figure 12B The supply voltage V1 and supply current D1 to the electromagnetic actuator 10, as shown, generate vibrations corresponding to the period of the input AC signal.

[0159] Thus, by using the rectifier diode 132, vibrations that correspond to the frequency of the input AC signal can be generated at low cost. In the rectifier circuit of Modified 1, the rectifier diode 132 is inserted forward between the AC signal input section 120 and the electromagnetic actuator 10, thereby achieving the above-mentioned effect with a simple structure.

[0160] <Transformation 2>

[0161] Figure 13A and Figure 13B This is a diagram illustrating a modified version 2 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention. Figure 13A This diagram shows the structure of the modified half-wave rectifier, variant 2. Figure 13B This is a diagram showing the drive current input to the electromagnetic actuator 10 via the half-wave rectifier 130B.

[0162] Figure 13A The somatosensory vibration generating device 100b shown has a half-wave rectification protection circuit including a rectifier diode 132 and a freewheeling diode 134, which serves as a half-wave rectification section 130B between the AC signal input section 120 and the electromagnetic actuator 10.

[0163] The half-wave rectifier 130B has a rectifier diode 132 inserted in the forward direction between the AC signal input section 120 and the electromagnetic actuator 10. In addition, the half-wave rectifier 130B has a freewheeling diode 134 inserted in parallel with the electromagnetic actuator 10 between the terminals of the electromagnetic actuator 10.

[0164] according to Figure 13A The half-wave rectifier protection circuit shown is the half-wave rectifier section 130B, which becomes... Figure 13B The supply voltage V2 and supply current D2 to the electromagnetic actuator 10, as shown, generate vibrations synchronized with the input of the audio source.

[0165] Therefore, the freewheeling diode 134 functions as a protection circuit for the rectifier diode 132. Even when a back electromotive force is generated in the electromagnetic actuator 10, a high voltage will not be applied to the rectifier diode, and there is no need to replace the damaged rectifier diode.

[0166] Transformers 3

[0167] Figure 14A and Figure 14B This is a diagram illustrating a modified 3 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention. Figure 14A This is a structural diagram showing the modified version 3 of the half-wave rectifier. Figure 14B This is a diagram showing the drive current input to the electromagnetic actuator 10 via the half-wave rectifier 130C.

[0168] Figure 14A The somatosensory vibration generating device 100c shown has a half-wave rectification protection circuit including a rectifier diode 132, a freewheeling diode 134 and a resistor 136, which serves as a half-wave rectification section 130C between the AC signal input section 120 and the electromagnetic actuator 10.

[0169] The half-wave rectifier 130C includes a rectifier diode 132 that is forward-biased and inserted between the AC signal input section 120 and the electromagnetic actuator 10. Additionally, in the half-wave rectifier 130C, a resistor 136 and a freewheeling diode 134 are connected between the terminals of the electromagnetic actuator 10 and inserted in parallel with the electromagnetic actuator 10. The freewheeling diode 134 and the resistor 136 function as a protection circuit for the rectifier diode 132.

[0170] according to Figure 14A The half-wave rectifier protection circuit shown is the half-wave rectifier section 130C, which is connected with... Figure 14B The same supply voltage V3 and supply current D3 to the electromagnetic actuator 10 are shown to generate vibrations corresponding to the input AC signal.

[0171] The half-wave rectifier 130C has a freewheeling diode 134 and a resistor 136 connected to the freewheeling diode 134 as a protection circuit for the rectifier diode 132.

[0172] According to the half-wave rectifier section 130C, unlike the protection circuit that only protects the rectifier diode 132 through the freewheeling diode 134, the resistor 136 is used to suppress the smooth flow of current, thereby generating a comfortable haptic vibration and preventing the deterioration of the reproducibility of the haptic vibration. In addition, even when the current is constantly flowing, the resistor 136 can prevent the temperature rise of the device due to Joule heating.

[0173] Figure 15 This refers to the current supplied to the electromagnetic actuator 10 in the structure of the somatosensory vibration generating device 100c when the resistance value of resistor 136 is increased. Furthermore, the voltage V4 input to the electromagnetic actuator 10 is... Figure 14B The voltage V3 shown is the same. For example... Figure 15 As shown, by making the resistance value of resistor 136 greater than... Figure 14A With its high structure, the rise of the drive current D4 becomes steep, and the electromagnetic actuator 10 is able to generate comfortable vibrations corresponding to the input of the AC signal from the audio source.

[0174] Transformers 4

[0175] Figure 16This is a diagram illustrating a modified 4 of the half-wave rectifier section of the body vibration generating device according to an embodiment of the present invention, and is a structural diagram of the modified 4 of the half-wave rectifier section.

[0176] Figure 16 The sonic vibration generating device 100d shown has a half-wave rectifier 130D between the AC signal input section 120 and the electromagnetic actuator 10. The half-wave rectifier 130D has rectifier diodes 132 and 138, a freewheeling diode 134, a resistor 136, and an operational amplifier 139 as an amplification section (operational amplifier).

[0177] In the half-wave rectifier section 130D, an operational amplifier 139 and a rectifier diode 132 connected to the output side of the operational amplifier 139 are inserted forward between the AC signal input section 120 and the electromagnetic actuator 10. In the half-wave rectifier section 130C, a resistor 136 is inserted in parallel with the electromagnetic actuator 10 between the terminals of the electromagnetic actuator 10. Furthermore, other rectifier diodes 138 connected between the operational amplifier 139 and the rectifier diode 132 are inserted in parallel with the electromagnetic actuator 10. Thus, the half-wave rectifier section 130C is constructed from an operational amplifier circuit including the operational amplifier 139.

[0178] According to the half-wave rectifier 130D, since an operational amplifier 139 is used, it can be configured as an ideal diode, thus preventing the forward voltage drop in the structure using rectifier diode 132. That is, even a small voltage component can be reproduced, i.e., a drive current corresponding to the small voltage component is generated and supplied to the electromagnetic actuator 10 to produce vibration synchronized with the input of the audio source.

[0179] Thus, with the somatosensory vibration generating devices 100, 100a to 100d, even small products can achieve increased output through efficient driving. That is, electromagnetic actuators can be used to achieve low cost and thinness, and the user can experience vibration through the vibration transmission unit 2.

[0180] Furthermore, in this embodiment, the half-wave rectifier 130 is mounted on the electromagnetic actuator 10. By mounting the half-wave rectifier 130 inside the electromagnetic actuator 10 in this way, compared to the case where the half-wave rectifier 130 is provided on the AC signal input side (see, for example, the case where the half-wave rectifier 130 is provided on the AC signal input side), Figure 11 Compared to other methods, it does not burden circuit design and does not require a dedicated circuit structure. That is, it does not require a circuit different from the sound source circuit that generates the sound; for example, the AC signal representing the audio source can be directly input to the actuator (rectifier mounted). Therefore, it improves ease of use.

[0181] Furthermore, in the electromagnetic actuator 10, it is preferable to fix a plurality of elastic portions 50 at positions symmetrical to the center of the movable body 40. However, as described above, a single elastic portion 50 may also be used to support the movable body 40 so that it can vibrate relative to the fixed body 30. The elastic portion 50 may also have at least two or more arms that connect the movable body 40 and the fixed body 30 and have serpentine elastic arm portions 56. The elastic portion 50 may also be made of a magnetic material. In this case, the movable body-side fixing portion 54 of the elastic portion 50 is respectively arranged at both ends of the core 24 in the direction of the winding axis of the coil 22 or in a direction orthogonal to the winding axis, and together with the core 24, forms a magnetic circuit when the coil 22 is energized.

[0182] Alternatively, in the structure of the electromagnetic actuator 10, rivets can be used instead of screws 62, 64, and 68 for fixing the base portion 32 to the elastic portion 50 and for fixing the elastic portion 50 to the movable body 40. Each rivet consists of a head and a body portion without a screw. It is inserted into a component with a hole, and by riveting the opposite ends, it is plastically deformed, thereby joining the components with holes together. Riveting can also be performed using, for example, a stamping machine or a special tool.

[0183] Figure 17 and Figure 18 This is a diagram illustrating an example of the installation method of the body vibration generating device 100. Figure 17 and Figure 18 This illustrates an example where motion-sensing vibration generating devices 320 and 420, configured similarly to the motion-sensing vibration generating device 100, are respectively mounted on the game controller 300 and the game chair 400. Furthermore, the game chair 400 can be configured as a device that is used by the user through contact, such as a motion-sensing simulator (e.g., a motion-sensing simulator chair) or a listening chair.

[0184] The game controller 300 is connected to the main body of the game console, for example, via wireless communication, and is used by the user by holding or gripping it. Here, the game controller 300 has a rectangular plate-shaped main body 310, which the user grips with both hands on the left and right sides. Furthermore, the main body 310 functions as a vibration transmission unit.

[0185] In games, the game controller 300 can provide notifications by making the user experience vibrations that correspond to communication signals such as command notifications, music, and sounds from the game console. Furthermore, although not shown, the game controller 300 has functions other than vibrations corresponding to command notifications, music, or sounds, such as an input operation unit for the game console.

[0186] The gaming chair 400 is, for example, a chair that is connected to the main body of a game console and is used by the user to sit while playing a game. The gaming chair 400 can make the user experience sounds (music, sound effects) emitted according to the game content through vibration, and realize the various functions of the gaming chair 400 (e.g., providing a sense of control and immersion).

[0187] Figure 17 , Figure 18 The game controller 300 and the gaming chair 400 shown each have an AC signal input section 120, a half-wave rectifier section 130, and electromagnetic actuators (for example, those with the same structure as the electromagnetic actuator 10) 323, 324, 424, and 422 as drive units. In this embodiment, multiple electromagnetic actuators 323, 324, 424, and 422 are installed in the game controller 300 and the gaming chair 400, respectively, but the number is not limited, as long as one or more are installed in each.

[0188] Furthermore, in the game controller 300, it is preferable that the electromagnetic actuators 323 and 324 of the motion vibration generating device 320 are installed in a manner that the vibration direction is orthogonal to the surface that contacts the fingertips, fingertips, palms, etc. of the user, or the surface on which the operating part is provided.

[0189] In the case of the gaming chair 400, for example, it is preferable to install an electromagnetic actuator 424 in the seat 414 to vibrate the seat surface, and to install an electromagnetic actuator 422 in the backrest 412 to vibrate the backrest. The seat 414 and the backrest 412 each function as vibration transmission parts.

[0190] Therefore, when there are audio sources such as game sounds or music in games, these audio sources are input to the AC signal input unit 120, and the AC signal, which is the audio source, is output to the half-wave rectifier unit 130. The half-wave rectifier unit 130 performs half-wave rectification on the input AC signal and outputs it as a drive signal to each of the electromagnetic actuators 323, 324, 424, and 422.

[0191] Thus, each electromagnetic actuator 323, 324, 424, and 422 generates vibrations synchronized with the input AC signal representing the input audio source (sound, audio), enabling the user to experience it.

[0192] The embodiments of the present invention have been described above. Furthermore, the above description is an example of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. That is, the description of the structure of the above-described device and the shape of each part is an example, and obviously, various modifications and additions can be made to these examples within the scope of the present invention.

[0193] In this embodiment, the driving direction of the electromagnetic actuator driven and controlled by the control unit 1 is the Z direction, but it is not limited to this. Specifically, the above-mentioned efficient driving and vibration enhancement effects can also be obtained in the direction parallel to the user's contact surface, in the X or Y direction.

[0194] The entire contents of the specification, drawings and abstract of specification contained in Japanese Patent Application No. 2019-217040, filed on November 29, 2019, are incorporated herein by reference.

[0195] Industrial availability

[0196] The electromagnetic actuator of the present invention uses an electromagnetic actuator, which enables low cost and thinness, and has the effect of efficiently generating thrust suitable for the user's tactile vibration. For example, it is useful for game controllers, gaming chairs, listening chairs, etc.

[0197] Symbol Explanation

[0198] 1. Control Department;

[0199] 2. Vibration transmission unit;

[0200] 2a surface;

[0201] Electromagnetic actuators: 10, 323, 324, 424, 422;

[0202] 20-core assembly;

[0203] 22 coils;

[0204] 24 cores;

[0205] 26 winding tube;

[0206] 30 fixed bodies;

[0207] 32. Base section;

[0208] 40 movable parts;

[0209] 50 elastic parts;

[0210] 100, 100A, 100a, 100b, 100c, 100d, 320, 420 body vibration generating devices;

[0211] 120 AC signal input unit;

[0212] 130, 130A, 130B, 130C, 130D half-wave rectifier sections;

[0213] 132 and 138 rectifier diodes;

[0214] 134 freewheeling diode;

[0215] 136 resistor;

[0216] 139 operational amplifier;

[0217] 140 Circuit Section;

[0218] 150mm magnification;

[0219] 200 Vibration Presentation Device (Hyper-sensory Vibration Presentation Device);

[0220] 300 game controller;

[0221] 310 body part;

[0222] 400 gaming chairs;

[0223] 412 Backrest;

[0224] 414th seat.

Claims

1. A device for generating body-sensing vibration, characterized in that, have: Electromagnetic actuator; An AC signal input section is used to receive AC signals; and The rectifier section performs half-wave rectification on the AC signal and outputs it as a drive signal to the electromagnetic actuator. The electromagnetic actuator includes: The plate-shaped base is equipped with an electromagnet consisting of a core and a coil; A movable body comprising a yoke disposed with a gap and positioned opposite the electromagnet, having a shape in which a portion of the coil can be inserted at a position opposite the coil; as well as An elastic body, respectively connected to the base portion and the movable body, allows the base portion and the magnetic yoke to be displaced relative to each other by energizing the electromagnet. Furthermore, by inputting the driving signal to the coil, the electromagnetic actuator is driven and vibrates in one direction of the vibration direction.

2. The somatosensory vibration generating device according to claim 1, characterized in that, The elastomer connects the base portion and the movable body on opposite sides of the base portion.

3. The somatosensory vibration generating device according to claim 1, characterized in that, The base portion has elastomeric supports on a pair of opposite sides.

4. The somatosensory vibration generating device according to claim 1, characterized in that, The movable body has a thickness that accommodates a portion of the coil.

5. A somatosensory vibration presentation device, characterized in that, have: The somatosensory vibration generating device according to claim 1; and The touch panel is vibrated by the somatosensory vibration generating device, transmitting vibrations to the user.

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