Force feedback devices and electronic equipment

Abstract

This invention discloses a force feedback device and an electronic device. The force feedback device includes a housing, a linear drive assembly, and an operating unit. The linear drive assembly includes a stator fixedly disposed within the housing, a mover slidably disposed within the housing along a first direction, and a pushing unit fixedly connected to the mover. One of the stator and the mover is a flat coil, and the other is a magnetic structure. The magnetic structure forms a magnetic field, and the flat coil is located within the magnetic field. The operating unit includes an operating body, which is rotatably mounted on the outside of the housing in directions toward and away from the pushing unit to drive the pushing unit. The Ampere force generated by the flat coil and the magnetic structure is fed back to the mover, and then fed back to the user's finger through the operating body, thus completing the force feedback. Furthermore, the flat coil is flat, which makes the force feedback device occupy less space.

Description

Technical Field

[0001] This invention relates to the field of gaming equipment technology, specifically to a force feedback device and an electronic device. Background Technology

[0002] Currently, in order to enhance the user experience, home gaming devices have incorporated force feedback devices into their game controllers (including traditional game controllers and new AR / VR handheld controllers), adding multiple force feedback modes to enable interaction between game content and players, simulating realistic force feedback effects.

[0003] The existing technical solution for force feedback devices is to achieve the force feedback effect by using a traditional compression spring and a common rotor motor to drive a gearbox. However, this makes the force feedback device occupy a large space and the module structure complex, making it difficult to miniaturize. Summary of the Invention

[0004] The main objective of this invention is to propose a force feedback device and electronic device that aims to solve the problem that existing force feedback devices occupy a large space and are difficult to miniaturize.

[0005] To achieve the above objectives, the present invention proposes a force feedback device, the force feedback device comprising:

[0006] case;

[0007] A linear drive assembly includes a stator fixedly disposed within the housing, a mover movable within the housing along a first direction, and a pusher fixedly connected to the mover. One of the stator and the mover is a flat coil, and the other is a magnetic structure. The magnetic structure forms a magnetic field, and the flat coil is located in the magnetic field. The pusher has a first end extending outside the housing.

[0008] The operating unit includes a rotating part and an operating body connected to the rotating part. The first end is correspondingly disposed with the operating body. The rotating part and the operating body are integrally formed or separately disposed.

[0009] Optionally, the operating body has a contact portion protruding towards the first end, the contact portion being arc-shaped on the side near the first end, and the first end being correspondingly provided with the contact portion.

[0010] Optionally, the side of the first end closest to the operating body is arc-shaped, so that the operating body abuts against the first end when it rotates toward the first end.

[0011] Optionally, the pushing part includes a mating part and a mounting bracket fixedly connected to the mating part. The mating part is arc-shaped on the side near the operating body, and the moving part is fixed to the mounting bracket.

[0012] Optionally, an elastic element is provided between the mating part and the housing to provide a restoring force for the pushing part.

[0013] Optionally, the stator includes the magnet structure, and the mover includes the flat coil;

[0014] The magnet structure includes a magnet assembly, which includes two magnets, with a magnetic gap formed between the two magnets, and the flat coil is disposed in the magnetic gap.

[0015] Optionally, the magnet group is configured as at least two groups, the two groups of magnet groups are arranged in the first direction, and the magnetization directions of the magnets located on the same side of the magnetic gap in the two groups of magnet groups are opposite, so that the magnetic field directions of the magnetic gap at the corresponding two groups of magnet groups are opposite;

[0016] The two opposite sides of the flat coil in the first direction are located in the magnetic gaps corresponding to the two sets of magnets.

[0017] Optionally, the housing includes a plurality of sides, which surround and form an installation channel extending along the first direction. The plurality of sides include a first side and a second side arranged opposite to each other. The mover is slidably disposed in the installation channel along the first direction.

[0018] The magnet structure and the flat coil are stacked between the first side and the second side.

[0019] Optionally, the force feedback device further includes a mounting bracket, which is slidably disposed in the mounting channel along the first direction, and the mounting bracket is formed with a mounting groove for accommodating the moving part.

[0020] Optionally, the linear drive assembly includes a magnetic yoke disposed corresponding to the magnet structure.

[0021] Optionally, the force feedback device further includes a controller, a displacement sensor, and a power supply module. The displacement sensor is used to detect the displacement signal of the operating part, and the controller is electrically connected to the displacement sensor and the power supply module to control the current magnitude and current direction of the power supply module according to the displacement signal.

[0022] The present invention also proposes an electronic device including the above-described force feedback device, wherein the force feedback device comprises:

[0023] case;

[0024] A linear drive assembly includes a stator fixedly disposed within the housing, a mover movable within the housing along a first direction, and a pusher fixedly connected to the mover. One of the stator and the mover is a flat coil, and the other is a magnetic structure. The magnetic structure forms a magnetic field, and the flat coil is located in the magnetic field. The pusher has a first end extending outside the housing.

[0025] The operating unit includes a rotating part and an operating body connected to the rotating part. The first end is correspondingly disposed with the operating body. The rotating part and the operating body are integrally formed or separately disposed.

[0026] In the technical solution of this invention, the moving part and the stator in the linear drive assembly cooperate to simulate the feedback force of the force feedback device, thereby achieving a force feedback effect. Specifically, when the feedback force to be simulated is not directly related to the travel of the operating part, this solution sets one of the moving part and the stator as a flat coil and the other as a magnetic structure. The flat coil is in the magnetic field generated by the magnetic structure. When the flat coil is energized, an Ampere force is generated between the flat coil and the magnetic structure, which is fed back to the moving part and then to the user's finger through the operating body. Furthermore, the flat coil is flat. The overall structure of the linear drive assembly, while satisfying the force feedback effect, can achieve a flat, miniaturized, and ultra-thin design, adapting to the application requirements of different types of handles, thus solving the problem that existing force feedback devices occupy a large space and are difficult to miniaturize.

[0027] It should be noted that in this solution, the magnitude and direction of the Ampere force on the flat coil can be adjusted by changing the magnitude and direction of the current within the flat coil, thereby resetting the mover when necessary. Furthermore, the stator can apply an Ampere force towards the operating body to the mover, thus providing a feedback force to the user's finger. By adjusting the magnitude of the current within the flat coil, the magnitude of this feedback force can be varied to meet more force feedback requirements. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a structure of an embodiment of the force feedback device provided by the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of part of the structure of the force feedback device;

[0031] Figure 3 for Figure 2 Schematic diagram of section AA;

[0032] Figure 4 for Figure 2 An exploded view of the components.

[0033] Explanation of icon numbers:

[0034] label name label name 100 Force feedback device 1 case 11 First side 12 Second side 2 Linear drive components 21 stator 211 Magnet structure 211a Magnet assembly 22 Motion 221 flat coil 23 Promotion Department 231 First end 232 Coordination Department 233 Mounting rack 3 Operations Department 31 Operating entity 311 Contact Department 4 elastic element

[0035] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] Currently, in order to enhance the user experience, home gaming devices have incorporated force feedback devices into their game controllers (including traditional game controllers and new AR / VR handheld controllers), adding multiple force feedback modes to enable interaction between game content and players, simulating realistic force feedback effects.

[0040] The existing technical solution for force feedback devices is to achieve the force feedback effect by using a traditional compression spring and a common rotor motor to drive a gearbox. However, this makes the force feedback device occupy a large space and the module structure complex, making it difficult to miniaturize.

[0041] In view of this, the present invention provides a force feedback device, which aims to solve the problem that existing force feedback devices occupy a large space and are difficult to miniaturize. Figures 1 to 4 This is a specific embodiment of the force feedback device provided by the present invention.

[0042] Please see Figures 1 to 3 The force feedback device 100 provided by the present invention includes: a housing 1, a linear drive assembly 2, and an operating part 3. The linear drive assembly 2 includes a stator 21 fixedly disposed within the housing 1, a mover 22 movable within the housing 1 along a first direction, and a pushing part 23 fixedly connected to the mover 22. One of the stator 21 and the mover 22 is a flat coil 221, and the other is a magnetic structure 211. The magnetic structure 211 forms a magnetic field, and the flat coil 221 is located in the magnetic field. The pushing part 23 has a first end extending outside the housing 1. The operating part 3 includes a rotating part (not shown) and an operating body 31 connected to the rotating part. The first end 231 is correspondingly disposed with the operating body 31. The operating body 31 is integrally formed with the rotating part or separately disposed.

[0043] In this invention, the first direction is a relative direction, specifically the direction in which the mover 22 slides.

[0044] In the technical solution of this invention, the motion element 22 in the linear drive assembly 2 cooperates with the stator 21 to simulate the feedback force of the force feedback device 100, thereby achieving a force feedback effect. Specifically, when the feedback force to be simulated is not directly related to the travel of the operating part, this solution sets one of the motion element 22 and the stator 21 as a flat coil 221 and the other as a magnetic structure 211. The flat coil 221 is in the magnetic field generated by the magnetic structure 211. When the flat coil 221 is energized, an Ampere force is generated between the flat coil 221 and the magnetic structure 211, which is then fed back to the motion element 22 and fed back to the user's finger through the operating body 31. Furthermore, the flat coil 221 is flat. The overall structure of the linear drive assembly 2, while satisfying the force feedback effect, can achieve a flat, miniaturized, and ultra-thin design, adapting to the application requirements of different types of handles, thus solving the problem that existing force feedback devices occupy a large space and are difficult to miniaturize.

[0045] It should be noted that in this solution, the magnitude and direction of the Ampere force on the flat coil 221 can be adjusted by changing the magnitude and direction of the current within the flat coil 221, thereby resetting the mover 22 when necessary. Furthermore, the stator 21 can apply an Ampere force towards the operating body 31 to the mover 22, thus providing a feedback force to the user's finger. By adjusting the magnitude of the current within the flat coil 221, the magnitude of the feedback force can be varied to meet more force feedback requirements.

[0046] Further, please refer to Figure 1 When the operating body 31 rotates toward the first end 231, it contacts the first end 231 and pushes the first end 231, thereby driving the mover 22 to move. Because the operating body 31 is rotatably configured, when the operating body contacts the first end, the operating body 31 applies a force along the first direction and a component force perpendicular to the first direction toward the first end 231. The force along the first direction can drive the mover 22 to move, while the component force perpendicular to the first direction may hinder the movement of the mover 22. Therefore, in one embodiment of the present invention, the operating body 31 is provided with a contact portion 311 protruding toward the first end 231. The contact portion 311 is arc-shaped on the side near the first end 231, and the first end 231 is correspondingly provided with the contact portion 311.

[0047] In this embodiment, the side of the contact portion 311 closest to the first end 231 is arc-shaped, which ensures that when the contact portion 311 abuts against the first end 231, the contact portion 311 and the first end 231 are in a tangential state. This results in a smaller contact area between the contact portion 311 and the first end 231, thus reducing the resistance to relative sliding between them. Consequently, the first end 231 experiences less influence from the component force perpendicular to the first direction, making the movement of the pushing part 23 and the moving part 22 along the first direction smoother and more convenient for the user. The operating body 31, through the arc-shaped design of the contact portion 311, converts its rotational movement into linear movement of the pushing part 23 and the moving part 22 along the first direction, thereby enabling the force feedback device 100 to meet more usage requirements.

[0048] Furthermore, the first end 231 is arc-shaped on the side near the operating body 31, so that the operating body 31 abuts against the first end 231 when it rotates toward the first end 231. In this embodiment, when the operating body 31 rotates toward the first end 231, the first end 231 will contact the operating body 31. Therefore, the side of the first end 231 facing the operating body 31 can be arc-shaped, so that the first end 231 and the operating body 31 remain tangent in real time when the operating body 31 rotates. This reduces the resistance when the operating body 31 pushes the first end 231, thereby facilitating the movement of the mover 22.

[0049] In another embodiment of the present invention, the operating body 31 has a contact portion 311 protruding towards the first end 231. The contact portion 311 is arc-shaped on the side near the first end 231, meaning that the contact portion 311 contacts the first end 231. Since both the first end 231 and the contact portion 311 are arc-shaped, this allows the first end 231 and the contact portion 311 to maintain a constant tangency, thereby further reducing the resistance when the operating body 31 pushes the first end 231.

[0050] Furthermore, the pushing part 23 includes a mating part 232 and a mounting bracket 233 fixedly connected to the mating part 232. The mating part 232 is arc-shaped on the side near the operating body 31, and the moving part 22 is fixed to the mounting bracket 233.

[0051] In this embodiment, the mating part 232 is actually disposed at the first end 231 of the pushing part 23, so that when the operating body 31 rotates, the mating part 232 will contact the operating body 31. Therefore, the side of the mating part 232 near the operating body 31 is arc-shaped, so that the mating part 232 and the operating body 31 remain tangent in real time when the operating body 31 rotates. This reduces the resistance when the operating body 31 pushes the mating part 232, thereby facilitating the movement of the moving part 22.

[0052] In addition, the pushing part 23 also includes the mounting bracket 233 for fixing the moving part 22. The mounting bracket 233 is fixedly connected to the mating part 232, so that when the operating body 31 pushes the pushing part 23, the moving part 22 will move together with the pushing part 23, and the Ampere force that the moving part 22 receives at this time, which is opposite to its own direction of movement, can also be fed back to the user's finger, thereby completing force feedback.

[0053] Furthermore, in practical applications, the force feedback device 100 needs to reset the operating body 31 after each use. The reset of the operating body 31 can be achieved by applying an Ampere force to the mover 22, causing the mover 22 to drive the pushing part 23 to reset the operating body 31. However, this method is costly. Therefore, in one embodiment of the present invention, an elastic member 4 is provided between the mating part 232 and the housing 1 to provide a restoring force for the pushing part 23.

[0054] In this embodiment, when a user's finger needs to press and operate the operating body 31, the mating part 232 moves towards the housing 1, compressing the elastic element 4. The elastic element 4 generates an elastic force through its own deformation. After the user finishes using the device, the operating body 31 is no longer under pressure, and the elastic element 4 pushes out the mating part 232 through its elastic force. The mating part 232 then resets the operating body 31, ensuring normal use of the operating body 31 next time, and with low operating costs.

[0055] It should be noted that the operating body 31 and the pushing part 23 can remain in contact at all times. Of course, the operating body 31 may only come into contact with the pushing part 23 after rotating to a certain angle. When the operating body 31 and the pushing part 23 are in constant contact, the elastic member 4 can simultaneously reset both the operating body 31 and the pushing part 23; when the operating body 31 contacts the pushing part 23 after rotating to a certain angle, the elastic member 4 can only reset the pushing part 23.

[0056] Specifically, please refer to Figure 3and Figure 4 The stator 21 includes the magnet structure, and the mover 22 includes the flat coil 221; the magnet structure 211 includes a magnet group 211a, the magnet group 211a includes two magnets, a magnetic gap is formed between the two magnets, and the flat coil 221 is disposed in the magnetic gap.

[0057] In this embodiment, when alternating current is applied to the flat coil 221, a portion of the flat coil 221 located in the magnetic gap will generate an Ampere force. This can be determined using the left-hand rule: extend your left hand, making your thumb perpendicular to your other four fingers and in a plane. Let the magnetic field lines flow into your palm, with your four fingers pointing in the direction of the current. Your thumb will point in the direction of the Ampere force (i.e., the direction of the force on the conductor). Therefore, the direction of the force acting on the flat coil 221 in the magnetic field can be determined. When it is necessary to increase the resistance of the feedback force, the direction of the current in the flat coil 221 can be set so that the Ampere force it generates is towards the user's fingers; when it is necessary to provide a feeling of deceleration, the direction of the current in the flat coil 221 can be set so that the Ampere force it generates is away from the user's fingers, thereby reducing the feedback force.

[0058] It should be noted that since the Ampere force is the force generated by the interaction between the magnet and the current-carrying conductor, please refer to [link / reference needed]. Figure 3 The stator 21 may include two magnets, and the mover 22 includes the flat coil 221. When the two magnets are fixed to the housing 1, the flat coil 221 is driven to move by the Ampere force. Conversely, the flat coil 221 can serve as the stator, fixed to the housing 1, while the magnet structure 211 can be movably installed inside the housing 1. In this case, the Ampere force acts on the two magnets, thereby driving the two magnets to move. At this time, the flat coil 221 can continue to be arranged between the two magnets, or two flat coils 221 can be arranged on both sides of a single magnet, or adjustments can be made according to usage requirements. No adjustments are made here.

[0059] Further, please refer to Figure 3Because the current directions of the conductors in the two parts of the flat coil 221 on the cross-section are arranged in opposite directions, in order to ensure that the feedback force has a large range of values ​​and can fully satisfy the user experience, in this embodiment, at least two sets of magnet groups 211a are set up. The two sets of magnet groups 211a are arranged in the first direction, and the magnetization directions of the magnets located on the same side of the magnetic gap in the two sets of magnet groups 211a are opposite, so that the magnetic field directions of the magnetic gap at the corresponding two sets of magnet groups 211a are opposite. The two opposite sides of the flat coil 221 in the first direction are located in the corresponding magnetic gaps of the two sets of magnet groups 211a. In this way, the two opposite sides of the flat coil 221 in the first direction can simultaneously sense the Ampere force in the same direction, thus doubling the theoretical value of the feedback force. Of course, in addition to setting more of the magnet group 211a and the flat coil 221, the magnitude of the feedback force can also be adjusted by changing the current value of the flat coil 221. The larger the current value, the greater the Ampere force, and vice versa.

[0060] Specifically, to accommodate the flattened and ultra-thin design of the flat coil 221, please refer to... Figure 3 In this embodiment, the housing 1 includes multiple sides, which enclose an installation channel extending along the first direction. Preferably, the cross-sectional shape of the installation channel is rectangular. The multiple sides include a first side 11 and a second side 12 arranged opposite to each other. The mover 22 is slidably disposed in the installation channel along the first direction. The magnet structure 211 and the flat coil 221 are stacked between the first side 11 and the second side 12, making the force feedback device 100 compact in the thickness direction, suitable for the needs of different types of handle triggers.

[0061] Specifically, please refer to Figure 3 and Figure 4 The force feedback device 100 further includes a mounting bracket 233, which is slidably disposed in the mounting channel along the first direction. The mounting bracket 233 has a mounting groove for accommodating the moving part.

[0062] In this embodiment, by setting the mounting bracket 233, the operating part 3 can obtain a larger range of motion in the first direction, resulting in a better user experience. Furthermore, a mounting groove is formed at the second end to accommodate the flat coil 221. When the flat coil 221 is driven by an Ampere force, it exerts a force on the side wall of the mounting groove, thereby realizing the force feedback of the magnetic drive of the operating part 3.

[0063] To achieve the thinnest possible design, the mounting groove is preferably an annular groove. The flat coil 221 is held in the annular groove, and the periphery of the flat coil 221 is held by the peripheral wall of the annular groove. While ensuring the strength of the mounting bracket 233, the annular groove can be set to the same height as the flat coil 221, or smaller, to achieve flatness.

[0064] Furthermore, since the magnet structure 211 has a magnetic field, in order to maximize the energy efficiency of the magnetic field generated by the magnet structure 211 on the flat coil 221, in this embodiment, the linear drive assembly includes a magnetic yoke corresponding to the magnet structure 211. Because the magnetic yoke has high permeability, it can constrain the magnetic field, allowing the magnetic field of the magnet structure 211 to exert greater energy efficiency.

[0065] Furthermore, the force feedback device 100 also includes a controller, a displacement sensor, and a power supply module. The displacement sensor is used to detect the displacement signal of the operation unit 3. The controller is electrically connected to the displacement sensor and the power supply module to control the current magnitude and current direction of the power supply module according to the displacement signal.

[0066] In practical applications, when a user plays a game, they pull the trigger and press the operation unit 3 to perform game operations. For example, assuming it's a racing game, when the car in the game is stationary, the game information does not generate feedback current. At this time, the feedback force felt by the user after pressing the operation unit 3 is the reset force generated by the elastic element 4. When the car is moving, the resistance in the game scene is small, and the current provided by the power supply module is a negative current. The negative current passes through the flat coil 221, and the Ampere force generated between it and the magnet structure 211 is in the opposite direction to the aforementioned repulsive force. The feedback force felt by the user is the resultant force of the reset force minus the Ampere force, meaning the game feedback force felt by the user is also small, making it easier to start the car. Similarly, when the car hits an obstacle, the current provided by the power supply module is a positive current, and the direction of the Ampere force is the same as the direction of the reset force. Therefore, the game feedback force felt by the user is the sum of the reset force and the Ampere force. At this time, the feedback force corresponding to the game content becomes larger, making it difficult to start the car.

[0067] The present invention also provides an electronic device, which may be a game controller, a game console, a game operating device, or a mobile terminal device, etc. The electronic device includes the force feedback device 100. The specific structure of the force feedback device 100 is as described in the above embodiments. Since the electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by all the technical solutions of all the above embodiments, which will not be described in detail here.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A force feedback device, characterized in that, include: case; A linear drive assembly includes a stator fixedly disposed within the housing, a mover movable within the housing along a first direction, and a pusher fixedly connected to the mover. One of the stator and the mover is a flat coil, and the other is a magnetic structure. The magnetic structure forms a magnetic field, and the flat coil is located in the magnetic field. The pusher has a first end extending outside the housing. An operating unit includes a rotating part and an operating body connected to the rotating part, wherein the first end is correspondingly disposed to the operating body, and the rotating part is integrally formed with the operating body or separately disposed therefrom; The operating body has a contact portion protruding towards the first end, and the contact portion is arc-shaped on the side near the first end. The first end is correspondingly provided with the contact portion. The first end is arc-shaped on the side near the operating body so that the operating body abuts against the first end when it rotates toward the first end; The contact portion is used to be tangential to the first end and to slide relative to the first end.

2. The force feedback device as described in claim 1, characterized in that, The pushing part includes a mating part and a mounting bracket fixedly connected to the mating part. The mating part is arc-shaped on the side near the operating body, and the moving part is fixed to the mounting bracket.

3. The force feedback device as described in claim 2, characterized in that, An elastic element is provided between the mating part and the housing to provide a restoring force for the pushing part.

4. The force feedback device as described in claim 1, characterized in that, The stator includes the magnet structure, and the mover includes the flat coil; The magnet structure includes a magnet assembly, which includes two magnets, with a magnetic gap formed between the two magnets, and the flat coil is disposed in the magnetic gap.

5. The force feedback device as described in claim 4, characterized in that, The magnet group is configured as at least two groups, the two groups of magnet groups are arranged in the first direction, and the magnetization directions of the magnets located on the same side of the magnetic gap in the two groups of magnet groups are opposite, so that the magnetic field directions of the magnetic gap at the corresponding two groups of magnet groups are opposite. The two opposite sides of the flat coil in the first direction are located in the magnetic gaps corresponding to the two sets of magnets.

6. The force feedback device as described in claim 1, characterized in that, The housing includes multiple sides, which enclose a mounting channel extending along the first direction. The multiple sides include a first side and a second side arranged opposite to each other. The moving part is slidably disposed in the mounting channel along the first direction. The magnet structure and the flat coil are stacked between the first side and the second side.

7. The force feedback device as described in claim 6, characterized in that, The force feedback device further includes a mounting bracket, which is slidably disposed in the mounting channel along the first direction. The mounting bracket has a mounting groove for accommodating the moving part.

8. The force feedback device as described in claim 1, characterized in that, The linear drive assembly includes a magnetic yoke that is configured corresponding to the magnet structure.

9. The force feedback device as described in claim 1, characterized in that, The force feedback device further includes a controller, a displacement sensor, and a power supply module. The displacement sensor is used to detect the displacement signal of the operating part. The controller is electrically connected to the displacement sensor and the power supply module to control the current magnitude and current direction of the power supply module according to the displacement signal.

10. An electronic device, characterized in that, Includes the force feedback device as described in any one of claims 1 to 9.

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