An on-board solenoid vibration feedback system

Abstract

The utility model discloses a kind of on-board solenoid vibration feedback systems, adopt helical pipe and permanent magnet cooperation as vibration element, provide current for solenoid by driving power supply, to make solenoid produce magnetic field, permanent magnet produces magnetic force, drive permanent magnet inside solenoid to move towards PCB board, to drag feedback panel to produce the micro deformation towards PCB board, when magnetic field disappears, permanent magnet moves away from PCB board inside solenoid, to drive feedback panel to produce the micro deformation away from PCB board, reciprocating deformation of feedback panel forms vibration feedback hand feeling, using electric generation magnetic principle can quickly respond vibration, and driving power supply adjusts current state, for example current waveform, current frequency etc., can change the magnetic field generated by solenoid, to change vibration feedback hand feeling, improve feedback effect and stability.

Description

Technical Field

[0001] This utility model relates to the field of vibration feedback technology, specifically to an onboard solenoid vibration feedback system. Background Technology

[0002] Vibration feedback technology transmits information through skin sensation feedback such as force and vibration. It is widely used in many industries such as smartphones, tablets, wearable devices, VR / AR, and automobiles. Existing vibration feedback systems usually rely on vibration motors (such as eccentric motors, linear motors, piezoelectric ceramic motors, etc.) to generate vibration. When a user interacts with the device (such as a touch screen, button, etc.), the sensors inside the device detect this interaction and send instructions to the vibration motor to generate vibrations of a specific pattern or intensity, thereby transmitting information to the user or confirming the operation.

[0003] Chinese patent CN101632985A discloses an electromagnetic vibration device, in which the pulse signal input terminal is connected to an amplifier circuit and an electro-permanent magnet or solenoid. The electro-permanent magnet or solenoid generates electromagnetic pulling or pushing force to drive a lever or vibrating rod to vibrate.

[0004] However, existing vibration feedback systems have slow response speeds, low vibration intensity, and monotonous vibration feedback feel, resulting in poor feedback performance.

[0005] Therefore, how to effectively improve the feedback effect and reliability of vibration feedback systems has become an urgent problem to be solved in this field. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an onboard solenoid vibration feedback system with good feedback effect and stable and reliable performance.

[0007] To achieve the above objectives, the present invention provides an onboard solenoid vibration feedback system, comprising a feedback panel, a PCB board, a permanent magnet, a solenoid, and a driving power supply. The solenoid is disposed on the PCB board and configured as a cylindrical structure. One end of the permanent magnet is elastically connected to the feedback panel, and the other end is slidably disposed inside the solenoid. The driving power supply is configured to provide current to the solenoid and adjust the current state.

[0008] Furthermore, the permanent magnet and the solenoid are configured in a clearance fit.

[0009] Furthermore, the peripheral surface of the feedback panel is disposed on the feedback device.

[0010] Furthermore, the permanent magnet is disposed in the end region of the feedback panel.

[0011] Furthermore, an elastic connecting plate is provided on the inner surface of the feedback panel that mates with the permanent magnet, and the elastic connecting plate is distributed in the first end region of the feedback panel.

[0012] Furthermore, a magnetic shielding layer is provided on the inner surface of the feedback panel that mates with the permanent magnet. The magnetic shielding layer is disposed on the elastic connecting plate and extends to the second end region of the feedback panel.

[0013] Furthermore, the magnetic shielding layer has a mounting groove adapted to the permanent magnet in the second end region of the feedback panel.

[0014] The onboard solenoid vibration feedback system provided by this utility model uses a solenoid and a permanent magnet as vibration elements. A driving power supply provides current to the solenoid, causing it to generate a magnetic field. This magnetic field exerts a magnetic force on the permanent magnet, causing it to move inside the solenoid towards the PCB board. This drags the feedback panel, creating a micro-deformation towards the PCB board. When the magnetic field disappears, the permanent magnet moves away from the PCB board inside the solenoid, causing the feedback panel to move away from the PCB board. The reciprocating deformation of the feedback panel creates a vibration feedback feel. Utilizing the principle of electromagnetism, it can quickly respond to vibrations. Furthermore, the driving power supply can adjust the current state, such as the current waveform and frequency, to change the magnetic field generated by the solenoid, thereby altering the vibration feedback feel and improving the feedback effect and stability. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 A schematic diagram of the overall structure of the onboard solenoid vibration feedback system provided by this utility model;

[0017] Figure 2 This is a schematic diagram showing the cooperation between the permanent magnet and the solenoid in this utility model;

[0018] Figure 3 and Figure 4 This is a schematic diagram showing the interaction between the permanent magnet and the feedback panel of this utility model.

[0019] Figure label:

[0020] 1. Feedback panel; 11. First end area; 12. Second end area; 2. PCB board; 3. Permanent magnet; 31. First end; 32. Second end; 4. Solenoid; 5. Flexible connecting plate; 6. Magnetic shielding layer; 61. Mounting slot. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0022] See Figure 1 The image shows an example of the onboard solenoid vibration feedback system provided by this utility model.

[0023] As shown in the figure, the onboard solenoid vibration feedback system in this example mainly includes a feedback panel 1, a PCB board 2, a permanent magnet 3, a solenoid 4, and a driving power supply. The solenoid 4 is mounted on the PCB board 2 and configured as a cylindrical structure. One end of the permanent magnet 3 is elastically connected to the feedback panel 1, and the other end is slidably mounted inside the solenoid 4. The driving power supply is configured to provide current to the solenoid 4 and adjust the current state so that the solenoid 4 can generate different magnetic field distributions, generating magnetic force on the permanent magnet 3. Under the action of the magnetic force, the permanent magnet 3 drives the feedback panel 1 to produce slight deformation, thereby forming different vibration feedback sensations to improve the feedback effect and stability.

[0024] The peripheral surface of the feedback panel 1 is located on the feedback device. The inner surface of the feedback panel 1 is connected to the permanent magnet 3, and the outer surface is used to interact with the user. The movement of the permanent magnet 3 will cause the surface of the feedback panel 1 to generate micro-deformation synchronously. The reciprocating micro-deformation forms vibration feedback and transmits the tactile sensation to the user so that the user can perceive the feedback.

[0025] In some embodiments, the permanent magnet 3 is directly disposed on the inner surface of the feedback panel 1. The permanent magnet 3 moves under the magnetic force of the solenoid 4, causing the surface of the feedback panel 1 to generate micro-deformation synchronously. When the magnetic force disappears, the stress generated by the feedback panel 1 on the permanent magnet 1 causes the permanent magnet 3 to return to its initial position and causes the surface of the feedback panel 1 to generate micro-deformation in the opposite direction synchronously, so as to form a vibration feedback feel.

[0026] As a preferred configuration, the inner surfaces of the feedback panel 1 and the permanent magnet 3 are respectively provided with an elastic connecting plate 5 and a magnetic shielding layer 6. The elastic connecting plate 5 and the magnetic shielding layer 6 cooperate with each other, so that the permanent magnet 3 can be elastically connected to the feedback panel 1, and the external magnetic field will not affect the cooperation between the permanent magnet 3 and the solenoid 4, thereby improving the reliability of the system.

[0027] Specifically, the elastic connecting plate 5 is disposed on the inner surface of the feedback panel 1, and the magnetic shielding layer 6 is disposed on the elastic connecting plate 5 and extends to the second end region 12 of the feedback panel 1. Furthermore, the magnetic shielding layer 6 is provided with a mounting groove 61 adapted to the permanent magnet 3 corresponding to the second end region 12 of the feedback panel 1.

[0028] In this way, the first end 31 of the permanent magnet 3 can be placed in the mounting groove 61 so that the permanent magnet 3 is placed in the end area of ​​the feedback panel 1, and forms an elastic cantilever connection structure through the magnetic shielding layer 6 and the elastic connecting plate 5. Such an elastic cantilever connection structure allows the permanent magnet 3 to move easily under the magnetic force of the solenoid 4, and drives the feedback panel 1 to generate micro-deformation synchronously through the elastic connecting plate 5. At the same time, the elastic connecting plate 5 converts kinetic energy into elastic potential energy.

[0029] When the magnetic force of the solenoid 4 on the permanent magnet 3 disappears, the elastic connecting plate 5 will release its elastic potential energy under its own elastic restoring force, causing the permanent magnet 3 to return to its initial position and causing the feedback panel 1 to generate a reverse micro-deformation in sync. No additional reset device is required, ensuring that the reset process is stable and controllable.

[0030] At the same time, when the permanent magnet 3 is reset, the elastic potential energy stored in the elastic connecting plate 5 is converted into kinetic energy, and the energy will be transferred to the feedback panel 1, amplifying the vibration of the feedback panel 1 to enhance the vibration feedback feel and improve the feedback effect.

[0031] Furthermore, the magnetic shielding layer 6 is configured to shield the magnetic field outside the feedback panel 1, preventing the cooperation between the permanent magnet 3 and the solenoid 4 from being interfered with by the external magnetic field, so as to ensure that the permanent magnet 3 can move stably under the magnetic force of the magnetic field generated by the solenoid 4, thereby improving the reliability of the system.

[0032] Here, the magnetic shielding layer 6 is a conventional technical means in this field and is not limited here. As an example, the magnetic shielding layer 6 can be composed of a ferrite shielding layer in the prior art.

[0033] To ensure that the permanent magnet 3 can move stably and drive the feedback panel 1 to produce reciprocating micro-deformation, the PCB board 2 is set in the feedback device and there is a gap between it and the inner surface of the feedback panel 1 so that the solenoid 4 can be set on the PCB board 2 and cooperate with the permanent magnet 3.

[0034] Specifically, the solenoid 4 is configured as a cylindrical structure, the first end 31 of the permanent magnet 3 is elastically connected to the feedback panel 1, and the second end 32 is slidably disposed inside the solenoid 4. Preferably, the permanent magnet 3 and the solenoid 4 are configured in a clearance fit, so that the permanent magnet 3 can move smoothly axially inside the solenoid 4, thereby causing the surface of the feedback panel 1 to produce reciprocating micro-deformation.

[0035] Meanwhile, the second end 32 of the permanent magnet 3 is built into the solenoid 4, which can effectively reduce the overall height of the system and improve the compactness of the structure, making it suitable for feedback devices with limited space.

[0036] Furthermore, the system also includes a drive power supply, which is connected to the PCB board 2 and can provide current to the solenoid 4 through the PCB board 2. Based on the principle of electromagnetism, the solenoid 4 can quickly generate a magnetic field, thereby generating a magnetic force on the permanent magnet 3, causing the permanent magnet 3 to move axially inside the solenoid 4, thereby causing micro-deformation on the surface of the feedback panel 1 to improve the feedback response speed.

[0037] Here, the direction of the current provided by the driving power supply and the distribution direction of the two poles of the permanent magnet 3 are not limited. It is necessary to ensure that the magnetic field distribution generated by the current provided by the driving power supply to the solenoid 4 can drive the permanent magnet 3 to move axially inside the solenoid 4.

[0038] Combination Figure 2 As an example, the driving power supply provides a counterclockwise current to the solenoid 4 so that the solenoid 4 generates a magnetic field with the N pole pointing towards the feedback panel 1 and the S pole pointing towards the PCB board 2. Correspondingly, the first end 31 of the permanent magnet 3 is the S pole and the second end 32 is the N pole, so that the solenoid 4 generates a magnetic force on the permanent magnet 3 facing the PCB board 2, causing the permanent magnet 3 to move towards the PCB board 2 under the action of the magnetic force, and causing the surface of the feedback panel 1 to produce a micro-deformation facing the PCB board 2.

[0039] When the driving power supply stops providing current to the solenoid 4, the magnetic force generated by the solenoid 4 on the permanent magnet 3 disappears. Under the drive of the elastic connecting plate 5, the permanent magnet 3 moves away from the PCB board 2, returns to its initial position, and causes the surface of the feedback panel 1 to produce a micro-deformation away from the PCB board 2.

[0040] In this way, the driving power supply periodically provides current to the solenoid 4, which causes the surface of the feedback panel 1 to undergo reciprocating micro-deformation to form a vibration feedback feel.

[0041] Furthermore, in order to improve the vibration feedback effect, the drive power supply is configured to adjust the current state, such as adjusting the current waveform and current frequency, so as to adjust the magnetic field distribution and intensity generated by the solenoid 4, thereby generating different magnetic forces on the permanent magnet 3, which can drive the surface of the feedback panel 1 to produce different micro-deformations, so as to form different vibration feedback feel.

[0042] As an example, the driving power supply provides a ramp current to the solenoid 4, which causes the magnetic field strength generated by the solenoid 4 to increase linearly with time, forming a gradual magnetic field, thereby generating a gradually increasing magnetic force on the permanent magnet 3, so that the micro-deformation generated on the surface of the feedback panel 1 gradually increases, in order to form a gradually stronger vibration feedback feel.

[0043] Furthermore, the driving power supply provides a square wave pulse current to the solenoid 4, so that the transient strong magnetic field generated by the solenoid 4 generates a sudden magnetic force on the permanent magnet 3, thereby causing a sudden micro-deformation on the surface of the feedback panel 1 to form a sudden vibration feedback feel.

[0044] Here, the driving power supply is a conventional technical means in this field, and will not be described in detail here.

[0045] Furthermore, the specific composition of the permanent magnet 3 is not limited. As an example, the permanent magnet 3 can be composed of N35 high magnetic force magnets in the prior art to improve the degree of micro-deformation generated on the surface of the feed panel 1 by the permanent magnet 3.

[0046] The following example illustrates the working process of this utility model in a specific application. It should be noted that the content described here is only a specific application example of this solution and does not constitute a limitation on this solution.

[0047] The driving power supply provides current to the solenoid 4 through the PCB board 2. Based on the principle of electromagnetism, the solenoid 4 quickly generates a magnetic field, which in turn generates a magnetic force on the permanent magnet 3. This causes the permanent magnet 3 to move towards the PCB board 2 under the influence of the magnetic force, resulting in a slight deformation of the surface of the feedback panel 1 as it drags the permanent magnet 3 towards the PCB board 2. Figure 3 As shown.

[0048] At the same time, the elastic connecting plate 5 deforms synchronously, converting kinetic energy into elastic potential energy, and the magnetic shielding layer 6 shields the magnetic field outside the feedback panel 1, ensuring the reliable operation of the system.

[0049] When the drive power supply stops providing current, the magnetic field generated by solenoid 4 disappears rapidly, and the magnetic force on permanent magnet 3 disappears simultaneously. The elastic connecting plate 5 releases its elastic potential energy under its own elastic restoring force, causing permanent magnet 3 to return to its initial position. This also causes feedback panel 1 to simultaneously generate a slight deformation away from PCB board 2. No additional reset device is needed, ensuring a smooth and controllable reset process. Figure 4 As shown.

[0050] At the same time, the elastic potential energy stored in the elastic connecting plate 5 is converted into kinetic energy, and the energy is transferred to the feedback panel 1, amplifying the vibration of the feedback panel 1 to enhance the vibration feedback feel and improve the feedback effect.

[0051] The reciprocating micro-deformation of the surface of feedback panel 1 generates vibration feedback and transmits the tactile sensation to the user.

[0052] The onboard solenoid vibration feedback system provided by this utility model, through the cooperation of feedback panel 1, PCB board 2, permanent magnet 3, solenoid 4 and driving power supply, can quickly respond to feedback and improve the vibration feedback effect and stability.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An onboard solenoid vibration feedback system, characterized in that, The device includes a feedback panel, a PCB board, a permanent magnet, a solenoid, and a driving power supply. The solenoid is disposed on the PCB board and configured as a cylindrical structure. One end of the permanent magnet is elastically connected to the feedback panel, and the other end is slidably disposed inside the solenoid. The driving power supply is configured to provide current to the solenoid and regulate the current state. An elastic connecting plate is provided on the inner surface of the feedback panel that mates with the permanent magnet, and the elastic connecting plate is distributed in the first end region of the feedback panel.

2. The onboard solenoid vibration feedback system according to claim 1, characterized in that, The permanent magnet and the solenoid are configured in a clearance fit.

3. The onboard solenoid vibration feedback system according to claim 1, characterized in that, The peripheral surface of the feedback panel is disposed on the feedback device.

4. The onboard solenoid vibration feedback system according to claim 1, characterized in that, The permanent magnet is located in the end region of the feedback panel.

5. The onboard solenoid vibration feedback system according to claim 1, characterized in that, A magnetic shielding layer is also provided on the inner surface of the feedback panel that mates with the permanent magnet. The magnetic shielding layer is disposed on the elastic connecting plate and extends to the second end region of the feedback panel.

6. The onboard solenoid vibration feedback system according to claim 5, characterized in that, The magnetic shielding layer has a mounting groove adapted to the permanent magnet in the second end region of the feedback panel.

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