Touch panel assembly

Abstract

A touchpad assembly comprises a touchpad body, a plurality of shock-resistant bodies, a support, a magnetic body and an electromagnetic unit, the shock-resistant bodies are arranged on the bottom face of the touchpad body to block vibration force from the touchpad body, the support comprises a plurality of elastic arms arranged on the sides, opposite to the touchpad body, of the shock-resistant bodies respectively, and the magnetic body is arranged on the elastic arms. The elastic arm is arranged on the touch panel body, the frame body is connected with the elastic arm, the magnetic body is arranged on the frame body and has magnetic force, and the electromagnetic unit comprises a first circuit board arranged on the bottom surface of the touch panel body and a coil circuit distributed on the first circuit board and spaced from the magnetic body. After the coil circuit is electrified to generate electromagnetic force, the coil circuit can generate magnetic interaction with the magnetic body, then the touch panel body is linked to generate vibration, and due to the fact that the touch panel body generates set vibration feedback when being touched, a user has good hand feeling.

Description

Technical Field

[0001] This utility model relates to a touchpad, and more particularly to a touchpad assembly. Background Technology

[0002] An existing touchpad includes a touchpad body and a button disposed on the bottom surface of the touchpad body. When a user touches the touchpad body and causes the button to be pressed, the action of pressing the button will be fed back to the user, thereby allowing the user to feel the tactile sensation of pressing.

[0003] However, the pressing action of the button is relatively simple and is fixed at the factory, so the feedback feel cannot be adjusted according to the user's needs. Utility Model Content

[0004] The purpose of this invention is to provide a touchpad assembly that overcomes the shortcomings described in the background art.

[0005] This utility model relates to a touchpad assembly, comprising a touchpad body having a touch surface and a bottom surface opposite to the touch surface. The touchpad assembly further comprises multiple shock absorbers, a support, a magnet, and an electromagnetic unit. The shock absorbers are disposed on the bottom surface to block vibration forces from the touchpad body. The support includes multiple elastic arms respectively disposed on the side of the shock absorber opposite to the touchpad body, and a frame connecting the elastic arms. The magnet is disposed on the frame and has magnetic force. The electromagnetic unit includes a first circuit board disposed on the bottom surface and coil circuits distributed on the first circuit board and spaced apart from the magnet in the vertical direction. When the coil circuit is energized, it generates electromagnetic force and can interact with the magnet, thereby causing the touchpad body to vibrate.

[0006] The touch panel assembly of this utility model further includes an electromagnetic unit that is disposed on the side of the touch panel body opposite to the first circuit board and electrically connected to the coil circuit. The driving chip can drive the coil circuit to generate electromagnetic force and generate magnetic interaction with the magnetic body, thereby causing the touch panel body to vibrate.

[0007] The touch panel assembly of this utility model has a first circuit board that is a multilayer board with no more than four layers.

[0008] The touch panel assembly of this utility model has a coil circuit distributed on the first circuit board around an axis extending along the vertical direction.

[0009] In the touchpad assembly of this invention, the magnetic body faces upward with its magnetic north pole facing upward.

[0010] In the touch panel assembly of this utility model, the magnetic body is disposed on one side of the frame corresponding to the touch panel body.

[0011] The touchpad assembly of this utility model further includes a pressure-sensitive unit disposed on the bottom surface to measure the pressure applied to the touchpad body.

[0012] The touch panel assembly of this utility model includes a pressure-sensitive unit comprising two second circuit boards spaced apart on the bottom surface and four pressure sensors disposed on the second circuit boards. Each second circuit board is provided with two pressure sensors, and each pressure sensor is located between its corresponding elastic arm and its corresponding second circuit board.

[0013] The touchpad assembly of this utility model further includes a tray disposed on the frame and for mounting the magnet.

[0014] The beneficial effects of this utility model are as follows: by setting the first circuit board, the coil circuit distributed on the first circuit board, and the magnetic body spaced apart from the coil circuit, the touch panel can generate a set vibration feedback when touched, giving the user a good feel. Attached Figure Description

[0015] Figure 1 This is an exploded perspective view of the first embodiment of the touchpad assembly of this utility model;

[0016] Figure 2 This is an incomplete cross-sectional view of the embodiment described;

[0017] Figure 3 This is an exploded perspective view of a second embodiment of the touchpad assembly of this utility model. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] For ease of explanation, the same elements are represented by the same reference numerals in the following embodiments.

[0020] See Figure 1 and Figure 2 The first embodiment of the touch panel assembly of this utility model includes a touch panel body 2, four shock absorbers 3, a bracket 4, a magnetic body 5, a tray 6, an electromagnetic unit 7, and a pressure-sensitive unit 8.

[0021] The touchpad body 2 has a touch surface 21 and a bottom surface 22 opposite to the touch surface 21. In this embodiment, the touchpad body 2 can sense the position of the touch surface 21 being touched.

[0022] The vibration dampers 3 are disposed on the bottom surface 22 to block vibration forces from the touchpad body 2. In this embodiment, the vibration dampers 3 are located at the four corners of the bottom surface 22, and the vibration dampers 3 are made of silicone.

[0023] The bracket 4 includes four elastic arms 41 respectively disposed on the side of the shock absorber 3 opposite to the touch panel body 2, and a frame 42 connecting the elastic arms 41. In this embodiment, the elastic arms 41 extend from the frame 42, and the bracket 4 is made of steel.

[0024] The magnetic element 5 is disposed above the frame 42 and has magnetic force. The magnetic element 5 is disposed on one side of the frame 42 corresponding to the touch panel body 2. In this embodiment, the magnetic element 5 is a magnet, with its magnetic north pole facing upwards.

[0025] The tray 6 is disposed on the frame 42 and is used for mounting the magnetic body 5. In this embodiment, the tray 6 is made of ferromagnetic material, which has the ability to enhance the magnetic linear density.

[0026] The electromagnetic unit 7 includes a first circuit board 71 disposed on the bottom surface 22, and a coil circuit 72 distributed on the first circuit board 71 and spaced apart from the magnetic body 5 in a vertical direction Z. When the coil circuit 72 is energized to generate electromagnetic force, it can generate magnetic interaction with the magnetic body 5, thereby causing the first circuit board 71 and the touch panel 2 to vibrate.

[0027] In this embodiment, the first circuit board 71 is a multilayer board with no more than four layers. The coil circuit 72 is powered by the touch panel 2. The coil circuit 72 is distributed on one layer of the first circuit board 71 around an axis L extending along the vertical direction Z. However, it is not limited to this; the coil circuit 72 can also be distributed on multiple layers of the first circuit board 71. When the coil circuit 72 is energized in the forward and reverse directions, it generates magnetic lines of force in different directions, which can generate magnetic attraction and magnetic repulsion with the magnetic body 5, respectively. After repeated operation of magnetic attraction and magnetic repulsion, the coil circuit 72 and the first circuit board 71 vibrate.

[0028] The pressure-sensitive unit 8 includes two second circuit boards 81 spaced apart on the bottom surface 22, and four pressure sensors 82 disposed on the second circuit boards 81. Each second circuit board 81 has two pressure sensors 82, each pressure sensor 82 located between its corresponding elastic arm 41 and the corresponding second circuit board 81, and is used to sense the pressure from the touchpad body 2 to measure the degree of pressure on the touchpad body 2. In this embodiment, the pressure sensors 82 are located below the shock absorber 3 along the vertical direction Z.

[0029] It should be noted that in other embodiments, the pressure sensing function of the pressure-sensitive unit 8 can also be directly incorporated into the touchpad body 2, thereby reducing the need for additional installation of the pressure-sensitive unit 8.

[0030] In use, when a user touches the touch surface 21 of the touchpad 2, after the touchpad 2 senses the touch position and the pressure sensor 82 senses the pressure and the pressure is greater than a preset threshold, it can control the coil circuit 72 to vibrate relative to the magnetic body 5, thereby causing the touchpad 2 to vibrate as well, so that the user receives vibration feedback.

[0031] In this way, the user can have a good touch feel. Since the coil circuit 72 is set on the first circuit board 71, which is mounted on the touch panel body 2 as an independent component, it is easy to manufacture and thus can reduce production costs.

[0032] Furthermore, since the vibration behavior of the coil circuit 72 relative to the magnetic body 5 depends on the forward and reverse current and switching frequency of the coil circuit 72, the vibration behavior can be changed by adjusting the driving mode of the touchpad body 2, thereby setting a feel suitable for the user.

[0033] It should be noted that in this embodiment, the number of the magnetic body 5, the tray 6, and the electromagnetic unit 7 is one, but it can be increased to two or more sets as needed.

[0034] See Figure 3 A second embodiment of this utility model is similar to the first embodiment, except that:

[0035] The electromagnetic unit 7 further includes a driving chip 73 disposed on the side of the first circuit board 71 opposite to the touch panel body 2 and electrically connected to the coil circuit 72. The driving chip 73 can drive the coil circuit 72 to generate electromagnetic force, thereby generating magnetic interaction with the magnetic body 5, and thus causing the touch panel body 2 to vibrate.

[0036] In use, when the user touches the touch surface 21 of the touchpad body 2, after the touchpad body 2 senses the touch position and the pressure sensor 82 senses the pressure and the pressure is greater than a preset threshold, it can control the driving chip 73 to drive the coil circuit 72 to vibrate relative to the magnetic body 5, thereby causing the touchpad body 2 to also vibrate.

[0037] Thus, the second embodiment can also achieve the same purpose and beneficial effects as the first embodiment described above.

[0038] In summary, by setting the first circuit board 71, the coil circuit 72 distributed on the first circuit board 71, and the magnetic body 5 spaced apart from the coil circuit 72, the touch panel 2 can generate a set vibration feedback when touched, giving the user a good feel, thus achieving the purpose of this utility model.

Claims

1. A touchpad assembly comprising a touchpad body having a touch surface and a bottom surface opposite the touch surface, characterized in that: The touchpad assembly further comprises a plurality of damping bodies, a support, a magnetic body and an electromagnetic unit. The damping bodies are arranged on the bottom surface to block vibration force from the touchpad body. The support comprises a plurality of elastic arms arranged on opposite sides of the damping bodies and a support body connecting the elastic arms. The magnetic body is arranged on the support body and has a magnetic force. The electromagnetic unit comprises a first circuit board arranged on the bottom surface and a coil circuit arranged on the first circuit board and spaced apart from the magnetic body in the up-down direction. The coil circuit generates electromagnetic force when energized and interacts with the magnetic force of the magnetic body, thereby driving the touchpad body to vibrate.

2. The touchpad assembly of claim 1, wherein: The electromagnetic unit further comprises a drive chip arranged on the side of the first circuit board opposite to the touchpad body and electrically connected to the coil circuit. The drive chip drives the coil circuit to be energized to generate electromagnetic force and interact with the magnetic force of the magnetic body, thereby driving the touchpad body to vibrate.

3. The touchpad assembly of claim 1, wherein: The first circuit board is a multi-layer board with no more than four layers.

4. The touchpad assembly of claim 1, wherein: The coil circuit is arranged on the first circuit board around an axis extending in the up-down direction.

5. The touchpad assembly of claim 1, wherein: The magnetic body has a magnetic north pole facing upward.

6. The touchpad assembly of claim 1, wherein: The magnetic body is arranged on the side of the support body corresponding to the touchpad body.

7. The touchpad assembly of claim 1, wherein: The touchpad assembly further comprises a pressure sensing unit arranged on the bottom surface to measure the pressure of the touchpad body.

8. The touchpad assembly of claim 7, wherein: The pressure sensing unit comprises two second circuit boards arranged on the bottom surface and four pressure sensors arranged on the second circuit boards. Each second circuit board is provided with two pressure sensors, and each pressure sensor is located between the corresponding elastic arm and the corresponding second circuit board.

9. The touchpad assembly of claim 1, wherein: The touchpad assembly further comprises a tray arranged on the support body and provided with the magnetic body.

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