Electromagnetic vibration touch device

Abstract

An electromagnetic vibration touch device includes a base and a touch circuit board. The base includes a base body, a plurality of flexible outer cantilever arms, a plurality of outer engaging members respectively fixed to the outer cantilever arms, a plurality of flexible inner cantilever arms, a plurality of inner engaging members respectively fixed to the inner cantilever arms, and at least one lower electromagnet member fixed to the upper side of the base body. The touch circuit board includes a circuit board body fixed to the outer engaging members and the inner engaging members, at least one upper electromagnet member facing the at least one lower electromagnet member, and a touch circuit. The touch circuit electrically connects the at least one lower electromagnet member and the at least one upper electromagnet member to control the repulsive magnetic force between the at least one lower electromagnet member and the at least one upper electromagnet member, thereby generating a good feedback feeling.

Description

Technical Field

[0001] This invention relates to a touch device, and more particularly to an electromagnetic vibration touch device. Background Technology

[0002] Currently, an existing touch device is used as a computer input device. This existing touch device includes a touch circuit board, a base, and a travel module (e.g., spring, contact spring, silicone pad, etc.) connecting the touch circuit board and the base. The touch circuit board is moved closer to the base via the travel module.

[0003] However, the travel module is prone to wear and tear after prolonged use, resulting in decreased tactile feedback. Clearly, the existing touch device still has room for improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an electromagnetic vibration touch device that is not prone to wear.

[0005] This invention relates to an electromagnetic vibration touch control device, comprising a base and a touch circuit board. The base includes a hollow base body defining an inner opening, a plurality of flexible outer cantilever arms fixed to the base body, a plurality of external connecting members respectively fixed to the outer cantilever arms, a plurality of flexible inner cantilever arms fixed to the base body, a plurality of internal connecting members respectively fixed to the inner cantilever arms, and at least one lower electromagnet fixed to the upper side of the base body. The outer cantilever arms extend in a left-right direction and are located outside the base body, and the inner cantilever arms extend in the left-right direction and are located within the inner opening. The touch circuit board includes a circuit board body fixedly connected to the outer connector and the inner connector, a touch circuit disposed on the circuit board body, and at least one upper electromagnet fixedly connected to the lower side of the circuit board body and facing the at least one lower electromagnet. The touch circuit is electrically connected to the at least one lower electromagnet and the at least one upper electromagnet, and is used to control the at least one lower electromagnet and the at least one upper electromagnet to generate a repulsive magnetic force in the up-down direction that is substantially perpendicular to the left-right direction.

[0006] The electromagnetic vibration touch control device of the present invention further includes a cover plate fixed to the upper side of the touch circuit board.

[0007] The cover plate of the electromagnetic vibration touch device of the present invention is made of glass.

[0008] The electromagnetic vibration touch control device of the present invention has an outer fixed end fixed to the base body and an outer free end opposite to the outer fixed end and fixed to its respective outer connecting member. Each inner cantilever has an inner fixed end fixed to the base body and an inner free end opposite to the inner fixed end and fixed to its respective inner connecting member.

[0009] The electromagnetic vibration touch control device of the present invention includes a base comprising four flexible external cantilever arms fixed to the base body, and four external connectors respectively fixed between the external cantilever arms and the circuit board body.

[0010] The electromagnetic vibration touch control device of the present invention includes a base comprising four flexible inner cantilever arms fixed to the base body, and four inner connecting members respectively fixed between the inner cantilever arms and the circuit board body, wherein the position of each inner cantilever arm corresponds to its respective outer cantilever arm.

[0011] The electromagnetic vibration touch control device of the present invention includes a base comprising two lower electromagnets fixed to the upper side of the base body and spaced apart along the left-right direction, and a touch circuit board comprising two upper electromagnets fixed to the lower side of the circuit board body and facing the lower electromagnets respectively.

[0012] The electromagnetic vibration touch control device of the present invention has a base body having a frame portion and two extension portions fixed to the frame portion and adjacent to the inner opening, and the lower electromagnets are respectively fixed to the extension portions.

[0013] The beneficial effects of the present invention are as follows: by setting the outer cantilever, the inner cantilever, the at least one lower electromagnet, the touch circuit and the at least one upper electromagnet, the touch circuit can control the at least one lower electromagnet and the at least one upper electromagnet to generate a repulsive magnetic force along the vertical direction when it senses that the circuit board body is pressing the base body, thereby producing a good tactile feedback. Attached Figure Description

[0014] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a perspective view of an embodiment of the electromagnetic vibration touch control device of the present invention, arranged on a mounting base;

[0016] Figure 2 This is an exploded perspective view of the embodiment and the mounting base.

[0017] Figure 3 This is an exploded perspective view of a base and a touch circuit board in the embodiment described above.

[0018] Figure 4 This is a top view of the base in the embodiment described above;

[0019] Figure 5 It is along Figure 4 The cross-sectional view obtained by the VV line;

[0020] Figure 6 It is along Figure 4 The sectional view obtained by the VI-VI line. Detailed Implementation

[0021] See Figure 1 and Figure 2 One embodiment of the electromagnetic vibration touch device of the present invention is suitable for use in a mounting base 9 of a laptop computer.

[0022] The embodiment includes a base 1, a touch circuit board 2, and a cover plate 3.

[0023] See Figure 2 and Figure 3 The base 1 is used to be fixed to the mounting base 9, and includes a base body 11, a plurality of flexible outer cantilever arms 12 fixed to the base body 11, a plurality of outer connecting members 13 respectively fixed to the outer cantilever arms 12, a plurality of flexible inner cantilever arms 14 fixed to the base body 11, a plurality of inner connecting members 15 respectively fixed to the inner cantilever arms 14, and at least one lower electromagnet 16 fixed to the upper side of the base body 11.

[0024] In this embodiment, refer to Figure 4 , Figure 5 and Figure 6 The base 1 includes a base body 11, four outer cantilever arms 12 fixed to the base body 11, four outer connecting members 13 respectively fixed to the outer cantilever arms 12, four inner cantilever arms 14 fixed to the base body 11, four inner connecting members 15 respectively fixed to the inner cantilever arms 14, and two lower electromagnet members 16 fixed to the upper side of the base body 11 and spaced apart along a left-right direction D1. Each outer connecting member 13 has a support portion 131 protruding from the base body 11 and a connecting portion 132 laid on the upper side of the support portion 131. However, in a variation of this embodiment, the number of lower electromagnet members 16 may be one or more.

[0025] See Figure 3 and Figure 4The base body 11 is hollow and defines an inner opening 111. The base body 11 has a frame portion 112 and at least one extension portion 113 fixed to the frame portion 112 and adjacent to the inner opening 111. In this embodiment, the base body 11 has two extension portions 113 for respectively fixing the lower electromagnet 16.

[0026] The outer cantilever 12 extends along the left-right direction D1 and is located outside the base body 11. Each outer cantilever 12 has an outer fixed end 121 fixed to the base body 11 and an outer free end 122 opposite to the outer fixed end 121 and fixed to the support portion 131 of its respective outer connector 13.

[0027] The inner cantilever 14 extends along the left-right direction D1 and is located in the inner opening 111. Each inner cantilever 14 is positioned corresponding to its respective outer cantilever 12 and has an inner fixed end 141 fixed to the base body 11 and an inner free end 142 opposite to the inner fixed end 141 and fixed to its respective inner connecting member 15.

[0028] The touch circuit board 2 includes a circuit board body 21, a touch circuit 22 disposed on the circuit board body 21, and at least one upper electromagnet 23 fixed to the lower side of the circuit board body 21 and facing the at least one lower electromagnet 16. In this embodiment, the touch circuit board 2 includes two upper electromagnets 23 fixed to the lower side of the circuit board body 21 and respectively facing the lower electromagnet 16. However, in a variation of this embodiment, the number of upper electromagnets 23 may be one or more.

[0029] The circuit board body 21 is fixed to the outer connector 13 and the inner connector 15, and further fixed to the outer cantilever 12 and the inner cantilever 14 to prevent them from shifting along the left-right direction D1 and a front-back direction D2 that is substantially perpendicular to the left-right direction D1.

[0030] The touch circuit 22 is implemented using an integrated circuit with sensing and control capabilities, and illustratively includes hardware components such as a capacitive sensing layer (not shown), a processor, and circuit wires. This is common knowledge in the field of touchpads and is not a feature of this case, so it will not be described in detail here.

[0031] See Figure 2 and Figure 3 The cover plate 3 is fixed to the upper side of the touch circuit board 2. In this embodiment, the cover plate 3 is made of glass.

[0032] In actual operation, when the touch circuit 22 senses that the circuit board body 21 is driven to press the base body 11, it is powered on and controls the lower electromagnet 16 and the upper electromagnet 23 to cooperate to generate a repulsive magnetic force along the vertical direction D3, thereby producing a feedback feel similar to physical vibration.

[0033] In summary, this embodiment has the following advantages:

[0034] (i) By integrating the outer cantilever 12, the inner cantilever 14, the lower electromagnet 16, the touch circuit 22 and the upper electromagnet 23, the touch circuit 22 can control the lower electromagnet 16 and the upper electromagnet 23 to generate a repulsive magnetic force along the vertical direction D3 when the touch circuit 22 senses that the circuit board body 21 presses the base body 11, thereby producing a good tactile feedback.

[0035] (ii) By setting the outer cantilever 12, the outer connector 13, the inner cantilever 14, the inner connector 15 and the circuit board body 21, the circuit board body 21 can avoid shifting along the left-right direction D1 and the front-back direction D2 when pressing the base body 11, thereby generating a balanced pressing feel.

[0036] In summary, the electromagnetic vibration touch device of the present invention is not prone to wear and tear and produces a good tactile feedback and pressing feel, thus achieving the purpose of the present invention.

[0037] However, the above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention shall still fall within the scope of the present invention.

Claims

1. An electromagnetic vibration touch control device, characterized in that: The electromagnetic vibration touch control device includes a base and a touch circuit board. The base includes a hollow base body with an internal opening, multiple flexible outer cantilever arms fixed to the base body, multiple external connecting members fixed to the outer cantilever arms, multiple flexible inner cantilever arms fixed to the base body, multiple internal connecting members fixed to the inner cantilever arms, and at least one lower electromagnet fixed to the upper side of the base body. The outer cantilever arms extend in a left-right direction and are located outside the base body, and the inner cantilever arms extend in the left-right direction. Extending and located within the inner opening; the touch circuit board includes a circuit board body fixed to the outer connector and the inner connector, a touch circuit disposed on the circuit board body, and at least one upper electromagnet fixed to the lower side of the circuit board body and facing the at least one lower electromagnet, the touch circuit being electrically connected to the at least one lower electromagnet and the at least one upper electromagnet, and being used to control the at least one lower electromagnet and the at least one upper electromagnet to generate mutually repulsive magnetic forces in a vertical direction substantially perpendicular to the left-right direction.

2. The electromagnetic vibration touch control device according to claim 1, characterized in that: It also includes a cover plate that is fixed to the upper side of the touch circuit board.

3. The electromagnetic vibration touch control device according to claim 2, characterized in that: The cover plate is made of glass.

4. The electromagnetic vibration touch control device according to claim 1, characterized in that: Each outer cantilever has an outer fixed end fixed to the base body and an outer free end opposite to the outer fixed end and fixed to its respective outer connector. Each inner cantilever has an inner fixed end fixed to the base body and an inner free end opposite to the inner fixed end and fixed to its respective inner connector.

5. The electromagnetic vibration touch control device according to claim 1, characterized in that: The base includes four flexible cantilever arms fixed to the base body, and four external connectors respectively fixed between the cantilever arms and the circuit board body.

6. The electromagnetic vibration touch control device according to claim 5, characterized in that: The base includes four flexible inner cantilever arms fixed to the base body, and four inner connecting members respectively fixed between the inner cantilever arms and the circuit board body, with each inner cantilever arm corresponding to its respective outer cantilever arm.

7. The electromagnetic vibration touch control device according to claim 1, characterized in that: The base includes two lower electromagnets fixed to the upper side of the base body and spaced apart along the left-right direction, and the touch circuit board includes two upper electromagnets fixed to the lower side of the circuit board body and facing the lower electromagnets respectively.

8. The electromagnetic vibration touch control device according to claim 7, characterized in that: The base body has a frame portion and two extension portions fixed to the frame portion and adjacent to the inner opening, and the lower electromagnets are respectively fixed to the extension portions.

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