Touch panel

Abstract

The utility model relates to a touch panel, which comprises a square first supporting piece and a second supporting piece, the square first supporting piece comprises a first groove and lower positioning columns, the middle area of the upper surface of the first supporting piece sinks downwards, and the lower positioning columns protrude downwards from the corners of the first supporting piece respectively; the touch pressing module is arranged in the first groove; the springs are attached to the bottom of the first supporting piece, and the lower positioning columns are sleeved with the springs; the second supporting piece comprises a bottom plate, two supporting blocks and a plurality of positioning grooves, the width of the bottom plate is larger than that of the first groove, the two supporting blocks protrude upwards from the two sides of the bottom plate, a containing space is formed between the bottom plate and the supporting blocks, and the positioning grooves are formed by sinking the supporting blocks downwards. The positioning groove is arranged to accommodate the lower positioning column and the spring; and the substrate is arranged in the accommodating space.

Description

TECHNICAL FIELD

[0001] The utility model relates to a touchpad, especially relate to a touchpad with stable quality and low production cost. BACKGROUND

[0002] Please refer to Figure 10 , the explosion drawing of a touchpad 100' is shown in the figure, the touchpad 100' is fixed in electronic device and is exposed outside the shell part 200' by the opening 210' of the shell part 200' of the electronic device. Please refer to Figure 11 and Figure 12 , the touchpad 100' includes a substrate 10', a touch pressure module 20' arranged above the substrate 10', a support 30' arranged between the substrate 10' and the touch pressure module 20', a flexible circuit board 50' electrically connected between the substrate 10' and the touch pressure module 20', and a plurality of elastic members 60' arranged below the support 30' and abutting against the support 30'. The left and right sides of the support 30' are respectively provided with a plurality of downward protruding lower positioning columns 313', and the elastic member 60' includes a middle section, a plurality of positioning holes 62' arranged on the middle section, two spring portions extending from both sides of the middle section, and screw holes 61' arranged at the ends of the spring portions. The elastic member 60' is located on the left and right sides of the support 30', and the lower positioning column 313' penetrates the positioning hole 62', and the spring portion is locked in the shell part 210' through a screw 220' passing through the screw hole 61', thereby elastically supporting the support 30'. Therefore, the touch pressure module 20' is limited to approach the substrate 10' when pressed by the user, and returns to the original position when the user does not apply force.

[0003] However, the spring portion of the elastic member 60' is made by repeatedly bending a piece of iron, and the flatness of the piece of iron after processing directly affects whether the touch pressure module 20' can move correctly and return to its original position. However, there is a tolerance when bending the piece of iron into the spring portion, making it difficult to improve the yield of the elastic member 60', resulting in quality problems such as unevenness of the touch pressure module 20' in the finished product or uneven gaps in the appearance of the touchpad 100'. In addition, the pressing feel of the touchpad 100' is directly related to the elasticity of the elastic member 60', and the elasticity of the finished elastic member 60' is fixed. If the elastic member 60' with different elasticity is needed, the stamping die of the piece of iron needs to be modified, which makes the cost of changing the elastic member 60' high, and the production cost of the touchpad 100' increases.

[0004] Therefore, it is necessary to provide a touchpad with stable quality and low production cost. SUMMARY

[0005] The utility model discloses a touchpad, contain: a first support piece, the first support piece is generally square and contains by the first support piece's upper surface's middle area is recessed to a first recess, and by the first support piece's corner place respectively is recessed to a lower positioning post, a touch pressure module is set up in the first recess, a plurality of springs are attached to the first support piece bottom, and the spring is set to the lower positioning post outside, a second support piece contains a bottom plate, the bottom plate's width is greater than the first recess's width, two support blocks that are up convex by the bottom plate both sides, the bottom plate and the support block between form a containing space, and a plurality of positioning slots that are recessed by the support block downward are set, the positioning slot sets up to accommodate the lower positioning post with the spring, and a substrate is set up in the containing space.

[0006] In some embodiments, the touchpad further contains a flexible circuit board, and the flexible circuit board is fixed and attached to the lower surface of the first support piece, and keeps a distance from the top surface of the substrate.

[0007] In some embodiments, a positioning hole is provided between two adjacent lower positioning posts, and an upper positioning post is provided between the two positioning slots, respectively, the upper positioning post is aligned with the positioning hole, and passes through the positioning hole, respectively.

[0008] In some embodiments, the second support piece is square, and a screw hole and a shell positioning hole adjacent to the screw hole are provided at the corner of the second support piece, respectively.

[0009] In some embodiments, the front and rear sides of the second support piece are recessed inward to form a notch, respectively.

[0010] The utility model discloses a touchpad, contain: a first support piece, the upper surface of the first support piece forms a first recess, and the lower surface of the first support piece is provided with a plurality of downward convex lower positioning posts, a touch pressure module is set up in the first recess, a plurality of springs are provided outside a plurality of the lower positioning posts, a second support piece contains a bottom plate, two support blocks that are up convex are provided on both sides of the bottom plate, a containing space is formed between the bottom plate and the support block, the width of the containing space of the bottom plate is greater than the width of the first recess of the first support piece, a plurality of positioning slots are formed on the upper surface of the support block, a plurality of the positioning slots accommodate a plurality of the lower positioning posts and a plurality of the springs, and a substrate is set up in the containing space.

[0011] In some embodiments, the bottom of the first recess is accommodated in the containing space.

[0012] In summary, the structure of the touchpad of the present application uses the spring as a reset element, which can reduce the cost of producing the touchpad, and avoid the problem of unevenness of the touch pressure module or unevenness of the appearance gap of the finished product, so as to improve the overall yield of the touchpad and achieve the effect of stable production quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the above and other purposes, features, advantages and embodiments of the present application more obvious and easy to understand, the content of the present application can be better understood by reading the drawings.

[0014] Figure 1 is a perspective view of the touchpad of the present application.

[0015] Figure 2 is an exploded view of the touchpad of the present application.

[0016] Figure 3A is a perspective view of the first support member of the touchpad of the present application.

[0017] Figure 3B is a perspective view of the first support member of the touchpad of the present application from another angle.

[0018] Figure 4 is a top view of the touchpad of the present application.

[0019] Figure 5 is a cross-sectional view of the touchpad of the present application along the A-A line. Figure 4

[0020] Figure 6 is a perspective view of the second support member of the touchpad of the present application.

[0021] Figure 7 is a bottom view of the touchpad of the present application.

[0022] Figure 8 is a cross-sectional view of the touchpad of the present application along the B-B line. Figure 4

[0023] Figure 9 is a cross-sectional view of the touchpad of the present application along the C-C line. Figure 4

[0024] Figure 10 is an exploded view of a conventional touchpad fixed in an electronic device.

[0025] Figure 11 is an exploded view of a conventional touchpad.

[0026] Figure 12 is a cross-sectional view of a conventional touchpad. DETAILED DESCRIPTION​​​

[0027] To make the technical contents, structural features, objects and effects of the touchpad clear, embodiments are described below with reference to the drawings.

[0028] Please refer to Figure 1 With Figure 2 The touchpad 100 of the present application is arranged in an electronic device. In a preferred embodiment, the housing 200 of the electronic device is provided with an opening 210, and the touchpad 100 is arranged at the opening 210 to be exposed to the housing 200. Please refer to Figure 8 The touchpad 100 comprises a touch module 20, a support member 30 arranged below the touch module 20, an accommodation space 40 formed inside the support member 30, a substrate 10 arranged in the accommodation space 40, and a flexible circuit board 50 electrically connected between the touch module 20 and the substrate 10. In this embodiment, the support member 30 comprises a first support 31, a plurality of springs 33 attached to the bottom of the first support 31, and a second support 32 arranged at the bottom end of the springs 33. The accommodation space 40 for accommodating the substrate 10 is formed between the first support 31 and the second support 32. The touch module 20 can move up and down reciprocally by the elastic support of the springs 33 when pressed by the user.

[0029] Please refer to Figures 3A to 5 , Figure 9 The touch module 20 is fixed to the upper surface 311 of the first support 31, and the flexible circuit board 50 is attached to the lower surface 312 of the first support 31 and kept a distance from the top surface 11 of the substrate 10. In this embodiment, the first support 31 is substantially square-shaped, and the lower surface 312 of the first support 31 is provided with a plurality of lower positioning columns 313 extended downward at the corners, a plurality of positioning holes 314 arranged between two adjacent lower positioning columns 313, a plurality of upwardly protruding upper positioning hooks 315 arranged at the edges of the upper surface 311 of the first support 31, and a first recess 316 formed by the middle area of the upper surface 311 being recessed downward.

[0030] Please refer to Figure 5The touch-pressure module 20 is disposed in the first recess 316 and includes a pressure-sensing circuit board 21, a touch-pressure cover plate 22 covering the pressure-sensing circuit board 21, and a vibrator 23 protruding downward from the bottom layer of the pressure-sensing circuit board 21. The touch-pressure cover plate 22 has a plurality of downwardly protruding lower positioning hooks 225 at its edge. The lower positioning hooks 225 engage with the upper positioning hooks 315 to secure the touch-pressure module 20 to the top surface 311.

[0031] See also Figure 1 、 Figures 6 to 9 The second support member 32 includes a base plate 321 and support blocks 322 extending upward from both sides of the base plate 321. A receiving space 40 for accommodating the substrate 10 is formed between the base plate 321 and the support blocks 322. The width of the receiving space 40 of the base plate 321 is greater than the width of the first groove 316, allowing the first support member 31 and the touch-pressure module 20 carried thereon to move closer to or further away from the substrate 10. The support block 322 includes a plurality of downwardly recessed positioning grooves 323, each configured to accommodate the lower positioning posts 313. An upwardly protruding upper positioning post 324 is disposed between each of the two positioning grooves 323. The upper positioning posts 324 are aligned with the positioning holes 314 and pass through each of the positioning holes 314. In this embodiment, the second support member 32 is generally square in shape, and a screw hole 325 and a housing positioning hole 326 adjacent to the screw hole 325 are respectively provided at the corners of the support member 322, so that the second support member 32 is fixed to the housing portion 200 via the screws 220. The front and rear sides of the second support member 32 are respectively recessed inward to form a notch 327 to avoid the wiring of the flexible printed circuit board 50 and the screws 220 securing the substrate 10.

[0032] See also Figures 8 to 9 To securely connect the spring 33 between the first support member 31 and the second support member 32, the spring 33 is sheathed around the lower positioning post 313 and housed within the positioning slot 323. With this configuration, when a user presses the touchpad 100, causing the touch-pressure module 20 to move toward or away from the substrate 10, the spring 33, constrained by the lower positioning post 313 and the positioning slot 323, maintains contact between its ends with the first support member 31 and the second support member 32, respectively.

[0033] In the manufacturing process of the touchpad 100, the length and force value of the spring 33 directly affect the pressing feeling of the touchpad 100. In order to achieve different length and force value of the spring 33, the parameters of the spring 33 can be directly adjusted by a spring forming machine. Compared with the prior art, the forming process of the spring 33 has a controllable process, the cost of adjusting the force value of the spring 33 itself is low, the yield of the finished product of the spring 33 is high, the manufacturing cost of the spring 33 is low, the production quality is stable, the overall yield of the touchpad 100 is improved, and the cost of producing the touchpad 100 is reduced.

[0034] In summary, the touchpad 100 of the utility model has the advantages of stable quality and low production cost.

[0035] Although the present application has been disclosed with the above-mentioned embodiments, it is not intended to limit the present application. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present application. The scope of protection of the present application is defined by the appended claims.

Claims

1. A touch panel, characterized in that: The invention relates to a touch panel, comprising: a first support member, the first support member being substantially square and comprising a first groove depressed downward from a middle area of ​​an upper surface of the first support member, and lower positioning posts protruding downward from corners of the first support member; a touch-pressure module disposed in the first groove; a plurality of springs attached to the bottom of the first support member, and the springs sleeved on the outside of the lower positioning posts; a second support member comprising a bottom plate, the width of the bottom plate being greater than the width of the first groove, two support blocks protruding upward from two sides of the bottom plate, an accommodating space being formed between the bottom plate and the support blocks, and a plurality of positioning grooves depressed downward from the support blocks, the positioning grooves being configured to accommodate the lower positioning posts and the springs; and a substrate, wherein the substrate is disposed in the accommodating space.

2. The touch panel according to claim 1, wherein: The touch panel further includes a flexible circuit board, and the flexible circuit board is fixed and attached to the lower surface of the first support component and keeps a distance from the top surface of the substrate.

3. The touch panel according to claim 1, wherein: A positioning hole is provided between two adjacent lower positioning posts, and an upwardly protruding upper positioning post is provided between the two positioning grooves. The upper positioning posts are aligned with the positioning holes and pass through the positioning holes respectively.

4. The touch panel according to claim 1, wherein: The second support member is square in shape, and a screw hole and a shell positioning hole adjacent to the screw hole are respectively provided at corners of the second support member.

5. The touch panel according to claim 1, wherein: The front and rear sides of the second support member are respectively recessed inward to form a notch.

6. A touch panel, characterized in that: The cam is mounted on a first support member and has a first groove formed on its upper surface, and a plurality of lower positioning posts protruding downward are provided on its lower surface; a touch-pressure module is arranged in the first groove; a plurality of springs are arranged outside the plurality of said lower positioning posts; a second support member includes a bottom plate, two support blocks protruding upward are provided on both sides of the bottom plate, a accommodating space is formed between the bottom plate and the support blocks, the width of the accommodating space of the bottom plate is greater than the width of the first groove of the first support member, a plurality of positioning grooves are formed on the upper surface of the support block, the plurality of said positioning grooves accommodate the plurality of said lower positioning posts and the plurality of said springs; and a substrate, the substrate is arranged in the accommodating space.

7. The touch panel according to claim 6, wherein: The bottom of the first groove is received in the accommodating space.

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