Vibration module

Abstract

The invention provides a vibration module. The vibration module is used for being arranged in a touch panel. The vibration module comprises a shell, a magnetic element, a coil layer and a substrate. The shell is provided with an accommodating chamber and an elastic part. The magnetic element and the coil layer correspond to each other and are arranged in the containing chamber of the shell, and the substrate is connected with the shell and seals the magnetic element and the coil layer in the containing chamber. The elastic part of the shell extends towards the accommodating chamber and is connected with the magnetic element, and the elastic part abuts against the magnetic element to be close to the coil layer, so that the magnetic element induces the coil layer to generate vibration.

Description

Technical Field

[0001] The present invention relates to a vibration device, and in particular to a vibration module for a touch panel. Background Art

[0002] Many touchpads today use vibration modules instead of traditional mechanical buttons. When a user presses the touchpad, the vibration module generates a vibration that provides a tactile feedback experience. Conventional vibration modules also contain a vibration element within the module. When subjected to magnetic forces or energized, the element undergoes continuous and repetitive displacement, rotation, or deformation, generating vibrations. These vibrations are then transmitted to the outside world via other components within the module. Simply attaching a vibration module to a touchpad can provide a vibration function.

[0003] However, due to the demand for thinner touchpads, the vibration elements and internal structures within conventional vibration modules are relatively large, increasing the overall thickness of the module. This, in turn, increases the overall thickness and volume of the module when installed in the touchpad, making it less suitable for today's thinner touchpads. Furthermore, the complex components within the vibration module, combining multiple components within a small module, complicates the manufacturing process and increases production costs, making it prone to defects due to errors. Summary of the Invention

[0004] In order to solve the problems of the known technology, the present invention provides a vibration module. The vibration module of the present invention has an elastic part connected to the shell, a magnetic element with weight, and a coil matched with the corresponding magnetic element. The magnetic element generates vibration after sensing the coil in the module. At the same time, the magnetic element has the effect of a heavy hammer. The inertia of the magnetic element after starting to shake can provide a stable and relatively continuous vibration effect, and simplify the overall structure to make the module thinner. Furthermore, the elastic part of the shell is directly connected to the magnetic element to provide support for the magnetic element and the effect of transmitting vibration. The elastic part can control the distance between the magnetic element and the coil to adjust the vibration amplitude generated after induction. At the same time, it can directly transmit vibration to the entire module, which is conducive to immediately transmitting the vibration to the outside world. The elastic part is directly formed by the shell to reduce the complexity of component setting and the manufacturing process.

[0005] To achieve the above-mentioned object, the present invention provides a vibration module, comprising: a housing, the housing having a chamber, an opening, a surface, and an elastic portion, the chamber being connected to the opening, the surface corresponding to the chamber, and the elastic portion being located on the surface; a magnetic element disposed in the chamber of the housing and corresponding to the elastic portion; a coil layer disposed in the chamber of the housing and corresponding to the magnetic element; and a substrate disposed in the opening of the housing and shielding and covering the chamber.

[0006] The elastic portion of the shell extends from the surface of the shell toward the chamber, and the elastic portion is connected to the magnetic element and presses the magnetic element close to the coil layer. When the coil layer is energized, the magnetic element senses the coil layer and generates vibration, and the magnetic element transmits the vibration to the shell and the substrate through the elastic portion.

[0007] Preferably, the elastic portion of the shell has a fixed portion, a spring arm and an abutment portion, the fixed portion is located on the surface of the shell, the spring arm is connected to the fixed portion and extends toward the housing chamber of the shell, the abutment portion is located in the housing chamber and connected to the spring arm, and the abutment portion is connected to the magnetic element.

[0008] Preferably, the surface of the shell has an outer periphery and a central portion, the outer periphery is parallel to the surface, the central portion is close to the housing chamber of the shell, the fixing portion of the elastic portion is located at the outer periphery of the surface, the abutting portion of the elastic portion is located at the central portion of the surface, and the spring arm of the elastic portion surrounds and extends from the outer periphery to the central portion.

[0009] Preferably, the surface of the shell has a hollow groove, which surrounds the surface and is adjacent to the spring arm of the elastic part, and the chamber can be connected to the outside through the hollow groove.

[0010] Preferably, the elastic portion of the housing is formed integrally from the surface of the housing by stamping, cutting, etching or plastic injection molding.

[0011] Preferably, the vibration direction of the magnetic element is the same as the extension direction of the elastic portion.

[0012] Preferably, the magnetic pole arrangement direction of the magnetic element is the same as the extension direction of the elastic portion.

[0013] Preferably, the substrate is sandwiched between the coil layer.

[0014] Preferably, the substrate has an upper surface and a lower surface, the coil layer has a first coil, a second coil and a bending portion, the upper surface corresponds to the housing chamber of the shell, the lower surface is located on the opposite side of the upper surface, the first coil and the second coil are connected to each other through the bending portion, the first coil of the coil layer is arranged on the upper surface of the substrate, and the second coil of the coil layer is arranged on the lower surface of the substrate, so that the substrate is clamped between the first coil and the second coil.

[0015] Preferably, the shell has a plurality of first snap-fitting parts, the substrate has a plurality of second snap-fitting parts, the plurality of first snap-fitting parts correspond to the plurality of second snap-fitting parts, and the shell snaps the plurality of second snap-fitting parts of the substrate through the plurality of first snap-fitting parts, so that the substrate is set in the opening of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a first preferred embodiment of the present invention.

[0017] Figure 2 It is a three-dimensional exploded view of the first preferred embodiment of the present invention.

[0018] Figure 3 It is a cross-sectional schematic diagram of a first preferred embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the coil layer and substrate according to the first preferred embodiment of the present invention.

[0020] Figure 5 It is a perspective view of a second preferred embodiment of the present invention.

[0021] Figure 6 It is a perspective exploded view of a second preferred embodiment of the present invention.

[0022] The reference numerals are as follows:

[0023] 1: Vibration module

[0024] 2: Vibration module

[0025] 10: Shell

[0026] 11: Chamber

[0027] 12: Open your mouth

[0028] 13: Surface

[0029] 14: Elastic part

[0030] 15: First engaging portion

[0031] 20: Magnetic components

[0032] 30: Coil layer

[0033] 31: First coil

[0034] 32: Second coil

[0035] 33: Bending part

[0036] 40: Substrate

[0037] 41: Upper surface

[0038] 42: Lower surface

[0039] 43: Second engaging portion

[0040] 50: Shell

[0041] 60: Magnetic components

[0042] 70: Coil

[0043] 80: Substrate

[0044] 131: outer periphery

[0045] 132: Center

[0046] 133: Hollow groove

[0047] 141: Fixed part

[0048] 142: Spring Arm

[0049] 143: Contact Department DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings.

[0051] See also Figure 1 A perspective view of the first preferred embodiment of the present invention, Figure 2 The exploded perspective view of the first preferred embodiment of the present invention and Figure 3 A schematic cross-sectional view of a first preferred embodiment of the present invention.

[0052] The vibration module 1 of the present invention includes a shell 10, a magnetic element 20, a coil layer 30 and a substrate 40. The shell 10 has a chamber 11, an opening 12, a surface 13 and an elastic part 14. The chamber 11 of the shell 10 is connected to the opening 12, so that the chamber 11 can be connected to the outside through the opening 12. The surface 13 of the shell 10 corresponds to the chamber 11, and the elastic part 14 is located on the surface 13. The magnetic element 20 is arranged in the chamber 11 of the shell 10 and corresponds to the elastic part 14. The coil layer 30 is arranged in the chamber 11 of the shell 10 and corresponds to the magnetic element 20. The substrate 40 is connected to the coil layer 30 and is arranged at the opening 12 of the shell 10, and the substrate 40 covers and shields the chamber 11.

[0053] The elastic portion 14 of the housing 10 extends from the surface 13 toward the chamber 11 and into the chamber 11. The elastic portion 14 connects to the magnetic element 20 in the chamber 11 and presses the magnetic element 20 toward the coil layer 30. When the coil layer 30 is energized, the magnetic element 20 senses the charged coil layer 30 and vibrates. This vibration is then transmitted through the elastic portion 14 to the housing 10 and the substrate 40.

[0054] The magnetic element 20 generates vibrations by inducing the coil layer 30 based on the principle of electromagnetic induction. At the same time, because the magnetic element 20 itself has a certain weight, it can serve as a heavy hammer to maintain the stability of the vibration. The amplitude and force of the vibration can also be changed by adjusting the weight of the magnetic element 20. The elastic portion 14 of the housing 10 is formed by stamping, cutting, etching, or integrally molding the housing 10 directly onto its surface 13 by plastic injection molding. Because the housing 10 and the elastic portion 14 are an integral structure, and because the elastic portion 14 is formed by extending from the housing 10, the elastic portion 14 is structurally stable and not prone to breakage. There is no need to add additional structure to secure the elastic portion 14 to the housing 10, resulting in a lightweight and thin overall module. The elastic portion 14 can also instantly transmit vibrations to the housing 10 and the substrate 40, facilitating vibration transmission.

[0055] In detail, the surface 13 of the shell 10 has an outer periphery 131, a central portion 132 and a hollow groove 133. The elastic portion 14 has a fixed portion 141, a spring arm 142 and an abutting portion 143. The outer periphery 131 surrounds the surface 13 of the shell 10 and is parallel to the surface 13, and the central portion 132 is close to the chamber 11 of the shell 10. The fixed portion 141 of the elastic portion 14 is located on the surface 13 of the shell 10 near the outer periphery 131, the spring arm 142 is connected to the fixed portion 141 and extends toward the chamber 11 of the shell 10, the abutting portion 143 is located in the chamber 11 and is connected to the spring arm 142, and the abutting portion 143 is connected to the magnetic element 20 located in the chamber 11.

[0056] Specifically, the fixing portion 141 of the elastic portion 14 is located at the outer periphery 131 of the surface 13, and the abutting portion 143 is located at the center 132 of the surface 13. The spring arm 142 of the elastic portion 14 extends from the fixing portion 141 along the outer periphery 131 of the surface 13 and toward the center 132. Simultaneously, the spring arm 142 extends toward the chamber 11 and connects with the abutting portion 143, and then connects to the magnetic element 20 through the abutting portion 143. A hollow groove 133 in the surface 13 of the housing 10 surrounds the surface 13 and is adjacent to the spring arm 142 of the elastic portion 14. The chamber 11 can communicate with the outside world through the hollow groove 133. The hollow groove 133 enhances the elasticity and mobility of the spring arm 142, allowing the spring arm 142 to have greater elastic deformation and swing space relative to the housing 10.

[0057] The magnetic pole arrangement direction of the magnetic element 20 is the same as the extension direction of the elastic portion 14. Figure 3 , Figure 3The figure shows that the elastic portion 14 extends from the surface 13 into the chamber 11, showing a vertical extension. The corresponding magnetic poles of the magnetic element 20, namely the N and S poles, are also arranged vertically. The two poles of the magnetic element 20 are the parts with the strongest magnetism. This magnetic pole arrangement direction corresponds to the extension direction of the elastic portion 14, so that when the elastic portion 14 presses the magnetic element 20 close to the coil layer 30, better sensing distance control and the best magnetic sensing effect are achieved. Figure 3 For example, the N and S poles of the magnetic element 20 are arranged such that the upper N pole is closer to the surface 13 and the lower S pole is closer to the interior of the chamber 11, which is the same as the extension direction of the elastic portion 14. Alternatively, the upper S pole and the lower N pole can be arranged (not shown). There is no limit to the number of magnetic elements 20, as long as the arrangement direction of the two poles is the same as the extension direction of the elastic portion 14.

[0058] Furthermore, the vibration direction of the magnetic element 20 is the same as the extension direction of the elastic portion 14. Figure 3 Because the elastic portion 14 connects to and presses the magnetic element 20 , it also produces a limiting effect on the magnetic element 20 . The elastic portion 14 limits the position of the magnetic element 20 in the chamber 11 and determines the distance between the magnetic element 20 and the coil layer 30 . Figure 3 In this example, the elastic portion 14 extends in a vertical direction from the surface 13 into the chamber 11. This allows the spring arms 142 of the elastic portion 14 to be more effectively stretched, reset, and elastically deformed in this direction. Combined with the magnetic pole arrangement of the magnetic element 20, the magnetic element 20 connected to the elastic portion 14 vibrates in the same direction as the extension direction of the elastic portion 14. Therefore, the magnetic element 20 also vibrates back and forth in the vertical direction from the surface 13 into the chamber 11.

[0059] For further description of the arrangement of the coil layer and substrate of the present invention, please refer to Figure 4 Schematic diagram of the coil layer and substrate according to the first preferred embodiment of the present invention.

[0060] For further description of the arrangement of the coil layer and substrate of the present invention, please refer to Figure 2 as well as Figure 4 Schematic diagram of the coil layer and substrate according to the first preferred embodiment of the present invention.

[0061] The substrate 40 of the present invention is sandwiched between the coil layer 30. Specifically, the housing 10 of the present invention further comprises a plurality of first engaging portions 15 disposed on the surface 13 of the housing 10 and adjacent to the opening 12. The substrate 40 has an upper surface 41, a lower surface 42, and a plurality of second engaging portions 43. The coil layer 30 comprises a first coil 31, a second coil 32, and a bent portion 33.

[0062] The upper surface 41 of the substrate 40 corresponds to the chamber 11 of the housing 10, and the lower surface 42 is located opposite the upper surface 41. The first coil 31 and the second coil 32 of the coil layer 30 are connected to each other via a bend 33. The coil layer 30 is connected to the substrate 40. The first coil 31 of the coil layer 30 is located on the upper surface 41 of the substrate 40. The bend 33 is bent to allow the second coil 32 of the coil layer 30 to move and correspond to the lower surface 42 of the substrate 40, thereby sandwiching the substrate between the first coil 31 and the second coil 32. This arrangement allows the first coil 31 of the coil layer 30 to be located within the chamber, while the second coil 32 is located within the chamber but close to the opening 12 and visible to the outside world. This facilitates the design of the conductive contacts and circuitry of the coil layer 30, allowing direct electrical connection to the outside world without the need for additional conductive structures. Furthermore, the coil layer 30 is more securely fixed to the substrate 40, making it less likely to become detached. At the same time, the multiple first snap-fitting portions 15 of the shell 10 correspond to the multiple second snap-fitting portions 43 of the substrate 40, so that the substrate 40 can be combined with the multiple first snap-fitting portions 15 of the shell 10 through the multiple second snap-fitting portions 43, so that the substrate 40 is set and fixed in the opening 12 of the shell 10 and covers the covering chamber 11.

[0063] See further Figure 5 A perspective view of the second preferred embodiment of the present invention and Figure 6 A perspective exploded view of a second preferred embodiment of the present invention.

[0064] The second preferred embodiment of the present invention has substantially the same technical content and operation as the first preferred embodiment, and the similarities are not described in detail here, only the differences are described. The vibration module 2 of the second preferred embodiment of the present invention differs from the first preferred embodiment in that the module has a different structural shape, presenting a circular module.

[0065] The vibration module 2 of the second preferred embodiment of the present invention comprises a housing 50, a magnetic element 60, a coil 70, and a substrate 80. The housing 50 is cylindrical, the magnetic element 60 is a ring-shaped magnet, the coil 70 is surrounded by a circular shape, and the substrate is a circular sheet. The housing 50 is connected to the magnetic element 60, which is located inside the housing 50 and corresponds to the coil 70. The coil 70 is mounted on the substrate 80, which can be connected to the housing 50 and enclose the magnetic element 60 and coil 70 within the housing 50. When the coil 70 is energized, the magnetic element 60 senses the vibration generated by the coil 70, which is transmitted to the outside world through the housing 50.

[0066] The above description is only a preferred embodiment of the present invention. Any other equivalent changes or modifications that do not depart from the spirit disclosed in the present invention should be included in the scope of the present invention.

Claims

1. A vibration module, comprising: A housing having a chamber, an opening, a surface, and an elastic portion, wherein the chamber is connected to the opening, the surface corresponds to the chamber, and the elastic portion is located on the surface; a magnetic element disposed in the housing chamber of the housing and corresponding to the elastic portion; a coil layer, disposed in the housing and corresponding to the magnetic element; and a substrate, disposed in the opening of the housing and covering the chamber; The elastic portion of the shell extends from the surface of the shell toward the chamber, and the elastic portion is connected to the magnetic element and presses the magnetic element close to the coil layer. When the coil layer is energized, the magnetic element senses the coil layer and generates vibration, and the magnetic element transmits the vibration to the shell and the substrate through the elastic portion.

2. The vibration module according to claim 1, wherein: The elastic portion of the shell has a fixed portion, a spring arm and an abutting portion. The fixed portion is located on the surface of the shell, the spring arm is connected to the fixed portion and extends toward the housing chamber of the shell, the abutting portion is located in the housing chamber and connected to the spring arm, and the abutting portion is connected to the magnetic element.

3. The vibration module according to claim 2, wherein: The surface of the shell has an outer periphery and a central portion, the outer periphery is parallel to the surface, the central portion is close to the housing chamber of the shell, the fixing portion of the elastic portion is located at the outer periphery of the surface, the abutting portion of the elastic portion is located at the central portion of the surface, and the spring arm of the elastic portion surrounds and extends from the outer periphery to the central portion.

4. The vibration module according to claim 2, wherein: The surface of the shell has a hollow groove, which surrounds the surface and is adjacent to the spring arm of the elastic part. The chamber can communicate with the outside through the hollow groove.

5. The vibration module according to claim 1, wherein: The elastic portion of the shell is formed by integrally molding the surface of the shell by stamping, cutting, etching or plastic injection.

6. The vibration module according to claim 1, wherein: The vibration direction of the magnetic element is the same as the extension direction of the elastic part.

7. The vibration module according to claim 1, wherein: The magnetic pole arrangement direction of the magnetic element is the same as the extending direction of the elastic portion.

8. The vibration module according to claim 1, wherein: The substrate is sandwiched in the coil layer.

9. The vibration module according to claim 1, wherein: The substrate has an upper surface and a lower surface, the coil layer has a first coil, a second coil and a bending portion, the upper surface corresponds to the housing chamber of the shell, and the lower surface is located on the opposite side of the upper surface. The first coil and the second coil are connected to each other through the bending portion. The first coil of the coil layer is arranged on the upper surface of the substrate, and the second coil of the coil layer is arranged on the lower surface of the substrate, so that the substrate is clamped between the first coil and the second coil.

10. The vibration module according to claim 1, wherein: The shell has a plurality of first engaging parts, and the substrate has a plurality of second engaging parts. The plurality of first engaging parts correspond to the plurality of second engaging parts. The shell engages the plurality of second engaging parts of the substrate through the plurality of first engaging parts, so that the substrate is arranged in the opening of the shell.

Images