CN114748870A - Force feedback device and electronic equipment - Google Patents

Force feedback device and electronic equipment Download PDF

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Publication number
CN114748870A
CN114748870A CN202210382648.4A CN202210382648A CN114748870A CN 114748870 A CN114748870 A CN 114748870A CN 202210382648 A CN202210382648 A CN 202210382648A CN 114748870 A CN114748870 A CN 114748870A
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CN
China
Prior art keywords
force feedback
feedback device
flat coil
force
magnet
Prior art date
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Pending
Application number
CN202210382648.4A
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Chinese (zh)
Inventor
朱跃光
刘兆江
彭晓光
王永强
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Goertek Inc
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Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN202210382648.4A priority Critical patent/CN114748870A/en
Publication of CN114748870A publication Critical patent/CN114748870A/en
Priority to PCT/CN2023/085518 priority patent/WO2023197894A1/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63FCARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/25Output arrangements for video game devices
    • A63F13/28Output arrangements for video game devices responding to control signals received from the game device for affecting ambient conditions, e.g. for vibrating players' seats, activating scent dispensers or affecting temperature or light
    • A63F13/285Generating tactile feedback signals via the game input device, e.g. force feedback
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63FCARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20Input arrangements for video game devices
    • A63F13/24Constructional details thereof, e.g. game controllers with detachable joystick handles
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63FCARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1037Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals being specially adapted for converting control signals received from the game device into a haptic signal, e.g. using force feedback

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The invention discloses a force feedback device and an electronic device, wherein the force feedback device comprises: casing, linear drive assembly and operating portion. The linear driving assembly comprises a stator fixedly arranged in the shell, a rotor arranged in the shell in a sliding mode along a first direction and a pushing part fixedly connected with the rotor, one of the stator and the rotor is a flat coil, the other one of the stator and the rotor is a magnet structure, a magnetic field is formed by the magnet structure, and the flat coil is located in the magnetic field; the operating part comprises an operating main body, and the operating main body is rotatably arranged on the outer side of the shell in the direction towards and away from the pushing part so as to push the pushing part to move; the ampere force generated by the flat coil and the magnet structure is fed back to the mover, and then fed back to the finger of the user through the operation body, so that the force feedback is completed. And the flat coil is arranged flat, which makes the force feedback device less space consuming.

Description

Force feedback device and electronic equipment
Technical Field
The invention relates to the technical field of game equipment, in particular to a force feedback device and electronic equipment.
Background
At present, for improving user experience, a force feedback device is designed on game control handle equipment (comprising a traditional game handle, an AR/VR novel handheld handle and the like), and multiple force feedback modes are added, so that interaction between game content and players is realized, and a real force feedback effect is simulated.
The technical scheme of the existing force feedback device is that the traditional compression spring and the common rotor motor are used for driving the gear box to be matched to realize the force feedback effect, but the occupied space of the force feedback device is large, the module structure is complex, and the miniaturization is difficult.
Disclosure of Invention
The invention mainly aims to provide a force feedback device and electronic equipment, and aims to solve the problems that an existing force feedback device single body occupies a large space and is difficult to miniaturize.
To achieve the above object, the present invention provides a force feedback device, including:
a housing;
the linear driving assembly comprises a stator fixedly arranged in the shell, a rotor movably arranged in the shell along a first direction and a pushing part fixedly connected with the rotor, wherein one of the stator and the rotor is a flat coil, the other one of the stator and the rotor is a magnet structure, a magnetic field is formed on the magnet structure, the flat coil is positioned in the magnetic field, and the pushing part is provided with a first end extending out of the shell;
the operation part comprises a rotating part and an operation main body connected with the rotating part, the first end is arranged corresponding to the operation main body, and the rotating part and the operation main body are integrally formed or are arranged in a split mode.
Optionally, the operation main part is equipped with the contact site towards the first end is protruding, the contact site is close to one side of first end is the arc setting, first end with the contact site corresponds the setting.
Optionally, one side of the first end close to the operation body is arc-shaped, so that the operation body abuts against the first end when rotating towards the first end.
Optionally, the pushing portion includes a fitting portion and a mounting bracket fixedly connected to the fitting portion, the fitting portion is close to one side of the operation main body and is in an arc shape, and the mover is fixed to the mounting bracket.
Optionally, an elastic member is disposed between the fitting portion and the housing to provide a restoring force for the pushing portion.
Optionally, the stator comprises the magnet structure and the mover comprises the flat coil;
the magnet structure comprises a magnet group, the magnet group comprises two magnets, a magnetic gap is formed between the two magnets, and the flat coil is arranged in the magnetic gap.
Optionally, the magnet groups are arranged into at least two groups, the two groups of magnet groups are arranged in the first direction, and the magnetizing directions of the magnets positioned on the same side of the magnetic gap in the two groups of magnet groups are opposite, so that the magnetic fields of the magnetic gap at the corresponding two groups of magnet groups are opposite;
two opposite edges of the flat coil in the first direction are correspondingly positioned in the magnetic gaps corresponding to the two groups of the magnet groups.
Optionally, the housing includes a plurality of side portions, the side portions enclose a mounting channel extending along the first direction, the side portions include a first side portion and a second side portion, the first side portion and the second side portion are disposed opposite to each other, and the mover is slidably disposed in the mounting channel along the first direction;
the magnet structure and the flat coil are stacked between the first side portion and the second side portion.
Optionally, the force feedback device further includes a mounting bracket slidably disposed in the mounting channel along the first direction, and the mounting bracket is formed with a mounting groove for accommodating the mover.
Optionally, the linear drive assembly comprises a magnetic yoke arranged in correspondence with the magnet structure.
Optionally, the force feedback device further includes a controller, a displacement sensor and a power supply module, the displacement sensor is configured to detect a displacement signal of the operation portion, and the controller is electrically connected to the displacement sensor and the power supply module to control a current magnitude and a current direction of the power supply module according to the displacement signal.
The present invention further provides an electronic device, including the force feedback device, where the force feedback device includes:
a housing;
the linear driving assembly comprises a stator fixedly arranged in the shell, a rotor movably arranged in the shell along a first direction and a pushing part fixedly connected with the rotor, wherein one of the stator and the rotor is a flat coil, the other one of the stator and the rotor is a magnet structure, a magnetic field is formed on the magnet structure, the flat coil is positioned in the magnetic field, and the pushing part is provided with a first end extending out of the shell;
the operation part comprises a rotating part and an operation main body connected with the rotating part, the first end is arranged corresponding to the operation main body, and the rotating part and the operation main body are integrally formed or are arranged in a split mode.
In the technical scheme of the invention, the rotor in the linear driving assembly is matched with the stator, so that the feedback force of the force feedback device is simulated, and the force feedback effect is realized. Specifically, when the feedback force required to be simulated is not directly linked with the moving stroke of the operating part, one of the rotor and the stator is set to be a flat coil, the other is set to be a magnet structure, the flat coil is located in a magnetic field generated by the magnet structure, and when the flat coil is in a power-on state, an interactive ampere force is generated between the flat coil and the magnet structure so as to be fed back to the rotor and fed back to a user finger through the operating body.
In this embodiment, the magnitude and direction of the ampere force applied to the flat coil can be adjusted by changing the magnitude and direction of the current in the flat coil, so that the mover can be reset if necessary. The stator can apply an ampere force towards the operation body to the rotor, so that a feedback force is applied to a finger of a user, and the feedback force can be different in magnitude by adjusting the current in the flat coil, so that more force feedback requirements are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a force feedback device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of the force feedback device of FIG. 1;
FIG. 3 is a schematic view of a section A-A of FIG. 2;
fig. 4 is an exploded view of the components of fig. 2.
The reference numbers illustrate:
reference numerals Name(s) Reference numerals Name(s)
100 Force feedback device 1 Shell body
11 A first side part 12 Second side part
2 Linear drive assembly 21 Stator
211 Magnet structure 211a Magnet assembly
22 Mover 221 Flat coil
23 Push part 231 First end
232 Mating part 233 Mounting rack
3 Operation part 31 Operation body
311 Contact part 4 Elastic piece
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, for improving user experience, a force feedback device is designed on game control handle equipment (comprising a traditional game handle, an AR/VR novel handheld handle and the like), and multiple force feedback modes are added, so that interaction between game content and players is realized, and a real force feedback effect is simulated.
The technical scheme of the existing force feedback device is that the traditional compression spring and the common rotor motor are used for driving the gear box to be matched to realize the force feedback effect, but the occupied space of the force feedback device is large, the module structure is complex, and the miniaturization is difficult.
In view of this, the invention provides a force feedback device, which aims to solve the problems that the existing force feedback device is large in occupied space and difficult to miniaturize. Fig. 1 to 4 show an embodiment of a force feedback device according to the present invention.
Referring to fig. 1 to 3, the force feedback device 100 of the present invention includes: a housing 1, a linear driving assembly 2 and an operation part 3. The linear driving assembly 2 comprises a stator 21 fixedly arranged in the housing 1, a mover 22 movably arranged in the housing 1 along a first direction, and a pushing part 23 fixedly connected with the mover 22, wherein one of the stator 21 and the mover 22 is a flat coil 221, the other is a magnet structure 211, the magnet structure 211 forms a magnetic field, the flat coil 221 is located in the magnetic field, and the pushing part 23 has a first end extending out of the housing 1; the operation part 3 includes a rotation part (not shown) and an operation body 31 connected to the rotation part, the first end 231 is disposed corresponding to the operation body 31, and the operation body 31 is integrally formed with or separated from the rotation part.
In the present invention, the first direction is a relative direction, specifically, a sliding direction of the mover 22.
In the technical solution of the present invention, the mover 22 in the linear driving assembly 2 is matched with the stator 21, so as to simulate the feedback force of the force feedback device 100, thereby achieving the force feedback effect. Specifically, when the feedback force to be simulated is not directly linked to the moving stroke of the operating portion, the present solution provides a stable feedback force by providing one of the mover 22 and the stator 21 as the flat coil 221, and the other as the magnet structure 211, the flat coil 221 is in a magnetic field generated by the magnet structure 211, and the flat coil 221, in the energized state, an interactive ampere force is generated between the flat coil 221 and the magnet structure 211, thereby feeding back to the mover 22, and to the user's finger through the operating body 31, and pancake coil 221 is flat setting, linear drive assembly 2's overall structure can realize the ultra-thin design of flattening and miniaturization under the prerequisite that satisfies the force feedback effect, the application demand of adaptation different grade type handle to it is big to solve current force feedback device monomer occupation space, is difficult to miniaturized problem.
It should be noted that, in this embodiment, by changing the magnitude and direction of the current in the flat coil 221, the magnitude and direction of the ampere force applied to the flat coil 221 can be adjusted, so as to reset the mover 22 if necessary. And the stator 21 can apply an ampere force to the mover 22 toward the operating body 31 to apply a feedback force to the finger of the user, and the magnitude of the feedback force can be made different by adjusting the magnitude of the current in the pancake coil 221, so as to meet more force feedback requirements.
Further, referring to fig. 1, when the operating body 31 rotates towards the first end 231, the operating body contacts the first end 231 and pushes the first end 231, so as to drive the mover 22 to move. Because the operating body 31 is rotatably disposed, when the operating body contacts the first end, the operating body 31 applies a force in the first direction and a component force perpendicular to the first direction to the first end 231, wherein the force in the first direction can drive the mover 22 to move, and the component force perpendicular to the first direction may hinder the movement of the mover 22. Therefore, in an embodiment of the present invention, the operating body 31 is convexly provided with a contact portion 311 toward the first end 231, a side of the contact portion 311 close to the first end 231 is arc-shaped, and the first end 231 is arranged corresponding to the contact portion 311.
In this embodiment, a side of the contact portion 311 close to the first end 231 is arc-shaped, and this enables the contact portion 311 and the first end 231 to be in a tangential state when the first end 231 abuts against the contact portion 311. This makes the contact area of the contact portion 311 and the first end 231 smaller, so that the resistance to relative sliding between the contact portion 311 and the first end 231 is smaller, and thus the influence of the component force perpendicular to the first direction on the first end 231 is smaller, so that the movement of the pushing portion 23 and the mover 22 along the first direction is smoother, and the use by a user is facilitated. The operation body 31 converts its own rotation motion into a linear motion of the pushing portion 23 and the mover 22 along the first direction through the arc-shaped arrangement of the contact portion 311, so that the force feedback device 100 meets more use requirements.
Further, a side of the first end 231 close to the operation body 31 is arc-shaped, so that the operation body 31 abuts against the first end 231 when rotating towards the first end 231. In this embodiment, when the operating body 31 rotates toward the first end 231, the first end 231 contacts the operating body 31. Therefore, the side of the first end 231 facing the operating body 31 may be curved, so that when the operating body 31 rotates, the first end 231 and the operating body 31 maintain a real-time tangent state, which reduces resistance when the operating body 31 pushes the first end 231, thereby facilitating driving the mover 22 to move.
In another embodiment of the present invention, the operating body 31 is convexly provided with a contact portion 311 toward the first end 231, and a side of the contact portion 311 close to the first end 231 is arc-shaped, that is, the contact portion 311 contacts the first end 231. In this case, the first end 231 and the contact portion 311 are both arc-shaped, which enables the first end 231 and the contact portion 311 to maintain a real-time tangent state therebetween, thereby further reducing the resistance when the operating body 31 pushes the first end 231.
Further, the pushing portion 23 includes a fitting portion 232 and a mounting frame 233 fixedly connected to the fitting portion 232, one side of the fitting portion 232 close to the operation body 31 is arc-shaped, and the mover 22 is fixed to the mounting frame 233.
In the present embodiment, the engaging portion 232 is actually provided at the first end 231 of the pushing portion 23, so that the engaging portion 232 comes into contact with the operating body 31 when the operating body 31 rotates. Therefore, one side of the engaging portion 232 close to the operating body 31 is arc-shaped, so that when the operating body 31 rotates, the engaging portion 232 and the operating body 31 maintain a real-time tangent state, which reduces resistance when the operating body 31 pushes the engaging portion 232, thereby facilitating driving the mover 22 to move.
In addition, the pushing portion 23 further includes the mounting frame 233 for fixedly mounting the mover 22, and the mounting frame 233 is fixedly connected to the matching portion 232, so that when the operating body 31 pushes the pushing portion 23, the mover 22 moves together with the pushing portion 23, and an ampere force applied to the mover 22 at this time in a direction opposite to its own moving direction can be fed back to a finger of a user, thereby completing force feedback.
Further, in a specific application, the force feedback device 100 needs to reset the operation body 31 after each use, and the reset of the operation body 31 may be implemented by applying an ampere force to the mover 22, so that the mover 22 drives the pushing portion 23 to reset the operation body 31, but this approach is costly. Therefore, in an embodiment of the present invention, an elastic member 4 is disposed between the fitting portion 232 and the housing 1 to provide a restoring force to the pushing portion 23.
In this embodiment, when the user's finger needs to press the operation body 31, the engaging portion 232 compresses the elastic member 4 when moving toward the housing 1, and the elastic member 4 generates an elastic force by its own deformation. After the user uses the operation body 31, the operation body 31 is no longer pressed, the elastic member 4 ejects the matching part 232 out through the elastic force, and the matching part 232 also resets the operation body 31, so that the next normal use of the operation body 31 is ensured, and the use cost is low.
It should be noted that the operating body 31 and the pushing portion 23 may be kept in contact with each other all the time, and of course, the operating body 31 may be rotated to a certain angle and then may be in contact with the pushing portion 23. Here, when the operating body 31 is in contact with the pushing portion 23 at all times, the elastic member 4 can simultaneously reset the operating body 31 and the pushing portion 23; when the operating body 31 is rotated to a certain angle and then contacts the pushing part 23, the elastic member 4 can only restore the pushing part 23.
Specifically, referring to fig. 3 and 4, the stator 21 includes the magnet structure, and the mover 22 includes the flat coil 221; the magnet structure 211 comprises a magnet assembly 211a, the magnet assembly 211a comprises two magnets, a magnetic gap is formed between the two magnets, and the flat coil 221 is arranged in the magnetic gap.
In this embodiment, when the flat coil 221 is energized with an alternating current, a portion of the flat coil 221 located in the magnetic gap generates an ampere force, which can be determined according to the left-hand rule: the left hand is stretched, so that the thumb is perpendicular to the other four fingers and in the same plane, magnetic induction lines flow in from the palm of the hand, the four fingers point to the current direction, and the thumb points to the ampere force direction (namely the direction of the stress force of the conductor). Therefore, the direction of the force applied to the flat coil 221 in the magnetic field can be obtained, and when the resistance feeling of the feedback force needs to be increased, the direction of the current in the flat coil 221 can be set to be the direction of the generated ampere force towards the finger of the user; when a force relief sensation is desired, the direction of the current in the pancake coil 221 can be set to be the direction in which the generated ampere force faces away from the user's finger, thereby reducing the feedback force.
It should be noted that, since the ampere force is the force generated by the interaction between the magnet and the energized conducting wire, it can be understood that, referring to fig. 3, the stator 21 may include two magnets, the mover 22 includes the flat coil 221, and when the two magnets are fixed to the housing 1, the flat coil 221 is driven to move by the ampere force. On the contrary, the flat coil 221 may be used as the stator and fixed to the housing 1, and the magnet structure 211 may be movably installed in the housing 1, at this time, an ampere force acts on the two magnets to drive the two magnets to move, at this time, the flat coil 221 may be continuously disposed between the two magnets, or two flat coils 221 may be disposed on both sides of a single magnet, or may be adjusted according to the use requirement, and is not adjusted here.
Further, referring to fig. 3, since the current directions of the wires of the two portions of the flat coil 221 on the cross section are arranged in opposite directions, in order to make the force of the feedback force have a large interval value, the experience of the user can be fully satisfied. Therefore, in this embodiment, the magnet groups 211a are arranged in at least two groups, two groups of the magnet groups 211a are arranged in the first direction, and the magnetizing directions of the magnets in the two groups of the magnet groups 211a located on the same side of the magnetic gap are opposite, so that the magnetic fields of the magnetic gap at the two corresponding groups of the magnet groups 211a are opposite; two opposite sides of the flat coil 221 in the first direction are located in the magnetic gaps corresponding to the two sets of magnet sets 211 a. In this way, the two oppositely disposed sides of the flat coil 221 in the first direction can simultaneously sense the same direction of ampere force, so that the theoretical value of the feedback force is doubled. Of course, adjusting the magnitude of the feedback force can change the current value of the flat coil 221 in addition to setting more magnet sets 211a and flat coils 221, and the larger the current value, the larger the ampere force, and the smaller the ampere force.
Specifically, in order to match with the flat and ultra-thin design of the flat coil 221, please refer to fig. 3, in this embodiment, the housing 1 includes a plurality of side portions, the side portions enclose a mounting channel extending along the first direction, preferably, the cross section of the mounting channel is rectangular, the side portions include a first side portion 11 and a second side portion 12 which are oppositely disposed, and the mover 22 is slidably disposed in the mounting channel along the first direction; the magnet structure 211 and the flat coil 221 are stacked between the first side portion 11 and the second side portion 12, so that the force feedback device 100 is compact in structure in the thickness direction and suitable for requirements of different types of handle triggers.
Specifically, referring to fig. 3 and 4, the force feedback device 100 further includes a mounting frame 233, the mounting frame 233 is slidably disposed in the mounting channel along the first direction, and the mounting frame 233 is formed with a mounting groove for receiving the mover.
In this embodiment, by providing the mounting bracket 233, the operation portion 3 can obtain a larger moving stroke in the first direction, so that the user experience is stronger, and a mounting groove is formed at the second end, the mounting groove is used for accommodating the flat coil 221, and when the flat coil 221 is driven by an ampere force, the flat coil 221 applies an acting force to a side wall of the mounting groove, so as to realize the force feedback of the magnetic driving of the operation portion 3.
In order to achieve the thinness possible, the mounting groove is preferably an annular groove in which the flat coil 221 is held, and the circumferential side of the flat coil 221 is held by the circumferential wall of the annular groove, and the annular groove may be set to have the same height dimension as the flat coil 221 or a smaller dimension to achieve the flattening while ensuring the strength of the mounting bracket 233.
Further, since the magnet structure 211 has a magnetic field, in order to enable the magnetic field generated by the magnet structure 211 to act on the flat coil 221 most efficiently, in the present embodiment, the linear driving assembly includes a yoke disposed corresponding to the magnet structure 211. Since the magnetic permeability of the yoke is high, the magnetic field can be restrained, so that the magnetic field of the magnet structure 211 can exert a large energy efficiency.
Further, the force feedback device 100 further includes a controller, a displacement sensor and a power supply module, the displacement sensor is used for detecting a displacement signal of the operation portion 3, and the controller is electrically connected to the displacement sensor and the power supply module to control a current magnitude and a current direction of the power supply module according to the displacement signal.
In practical application, when a user uses a game, the user pulls a trigger to press the operation part 3 to perform game operation, for example, when the user assumes that the game is racing, when an automobile in the game is in a static state, no feedback current is generated in game information, and at this time, after the user presses the operation part 3, the feedback force felt by the user is the reset elastic force generated by the elastic piece 4; when the automobile is started, the resistance in a game scene is small at this time, the current provided by the power supply module is negative current, the negative current passes through the flat coil 221, the direction of the ampere force generated between the negative current and the magnet structure 211 is opposite to the direction of the repulsive force, the feedback force felt by a user is the resultant force of subtracting the ampere force from the reset elastic force, namely the game feedback force felt by the user is small, and the automobile is easy to start; similarly, when the automobile collides with an obstacle, the current provided by the power supply module is the forward current, and the direction of the ampere force is the same as that of the reset elastic force, so that the game feedback force felt by the user is the sum of the reset elastic force and the ampere force, and the feedback force corresponding to the game content is increased and is difficult to start.
The present invention further provides an electronic device, where the electronic device may be a game pad, a game console, a game operation device, or a mobile terminal device, and the electronic device includes the force feedback device 100, and the specific structure of the force feedback device 100 refers to the foregoing embodiments, and since the electronic device employs all technical solutions of all the foregoing embodiments, the electronic device at least has all beneficial effects brought by all technical solutions of all the foregoing embodiments, and details are not repeated here.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (12)

1. A force feedback device, comprising:
a housing;
the linear driving assembly comprises a stator fixedly arranged in the shell, a rotor movably arranged in the shell along a first direction and a pushing part fixedly connected with the rotor, wherein one of the stator and the rotor is a flat coil, the other one of the stator and the rotor is a magnet structure, a magnetic field is formed on the magnet structure, the flat coil is positioned in the magnetic field, and the pushing part is provided with a first end extending out of the shell;
the operation part comprises a rotating part and an operation main body connected with the rotating part, the first end is arranged corresponding to the operation main body, and the rotating part and the operation main body are integrally formed or are arranged in a split mode.
2. The force feedback device of claim 1, wherein the operating body is convexly provided with a contact portion toward the first end, a side of the contact portion adjacent to the first end is arcuately disposed, and the first end is disposed corresponding to the contact portion.
3. The force feedback device of claim 1 or 2, wherein a side of the first end proximate the operating body is arcuately disposed such that the operating body abuts the first end when rotated toward the first end.
4. The force feedback device of claim 3, wherein the pushing portion comprises an engaging portion and a mounting bracket fixedly connected to the engaging portion, one side of the engaging portion close to the operating body is disposed in an arc shape, and the mover is fixed to the mounting bracket.
5. The force feedback device of claim 4, wherein a resilient member is disposed between the engaging portion and the housing to provide a restoring force to the pushing portion.
6. The force feedback device of claim 1, wherein the stator includes the magnet structure, and the mover includes the flat coil;
the magnet structure comprises a magnet group, the magnet group comprises two magnets, a magnetic gap is formed between the two magnets, and the flat coil is arranged in the magnetic gap.
7. The force feedback device of claim 6 wherein said magnet sets are arranged in at least two sets, two sets of said magnet sets being arranged in said first direction, and magnets in two sets of said magnet sets on the same side of said magnetic gap having opposite directions of magnetization, such that said magnetic gap has opposite directions of magnetic field at the respective two sets of said magnet sets;
two opposite edges of the flat coil in the first direction are correspondingly positioned in the magnetic gaps corresponding to the two groups of the magnet groups.
8. The force feedback device of claim 1, wherein the housing includes a plurality of side portions, the plurality of side portions enclosing a mounting channel extending along the first direction, the plurality of side portions including a first side portion and a second side portion disposed opposite to each other, the mover slidably disposed in the mounting channel along the first direction;
the magnet structure and the flat coil are stacked between the first side portion and the second side portion.
9. The force feedback device of claim 8, further comprising a mounting bracket slidably disposed in the mounting channel in the first direction, the mounting bracket defining a mounting slot configured to receive the mover.
10. The force feedback device of claim 1, wherein the linear drive assembly comprises a magnetic yoke disposed in correspondence with the magnet structure.
11. The force feedback device of claim 1, further comprising a controller, a displacement sensor and a power supply module, wherein the displacement sensor is configured to detect a displacement signal of the operation portion, and the controller is electrically connected to the displacement sensor and the power supply module to control a current magnitude and a current direction of the power supply module according to the displacement signal.
12. An electronic device, characterized in that it comprises a force feedback device according to any of claims 1 to 11.
CN202210382648.4A 2022-04-11 2022-04-11 Force feedback device and electronic equipment Pending CN114748870A (en)

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