Touch panel assembling jig

Abstract

The utility model relates to a touch panel assembling jig. The touchpad assembling jig comprises a cover plate and a frame which are integrated, after a touchpad module to be assembled to a C shell of electronic equipment is placed into the assembling jig in the direction that a touch panel is arranged downwards to be assembled together, the cover plate extends in the horizontal direction and is in close contact with the surface bearing the touch panel, and the touch panel is arranged on the cover plate. The frame extends in the vertical direction and surrounds the periphery of the touch panel, and the inner wall of the frame is in clearance fit with the periphery of the touch panel at a first interval; after the assembling jig and the touchpad module which are assembled together are assembled into a C shell of the electronic equipment one by one according to a preset installation posture of the touchpad module, the outer wall of the frame and the inner side edge, surrounding the frame, of the C shell are configured to be in clearance fit with a second interval; the wall thickness of the frame is kept consistent. According to the touch panel assembling jig, the phenomenon that gaps of a touch panel on a C shell are not uniform is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic computers, in particular to a touch panel assembly jig. Background Art

[0002] A touchpad (TouchPad or TrackPad) is an input device widely used on laptops that controls the movement of the pointer by sensing the movement of the user's finger.

[0003] A touchpad is an input device based on pressure or capacitance sensing. It typically has a smooth surface and is located below or on the side of an electronic device's keyboard. When a user taps or slides their finger on the touchpad, the touchpad converts the finger's movement into electrical signals, which are then transmitted to the device's processor for analysis and response. Users can use the touchpad to control cursor movement, click, drag, and other operations, interacting with the electronic device. A touchpad can be considered a mouse replacement. Touchpads can also be found on other portable devices, such as personal digital assistants and some portable audio and video equipment.

[0004] A touchpad typically consists of the following main components. The touch panel is the core of the entire touchpad device, providing a smooth surface for the user to touch. Touch panels can be made of various materials, such as glass and plastic, and are resistant to scratches and fingerprints. Sensors and circuitry are typically located beneath the touch panel to detect touch input and convert it into electrical signals. Sensors can be categorized based on different principles, with pressure sensing and capacitive sensing being the most common.

[0005] See also Figure 1 , which is a schematic diagram of the assembly status of an existing touch panel module. Figure 1 The figure shows the completed assembly state of the existing touchpad module on the leather keyboard. The touchpad module is assembled into the C shell 10 of the leather keyboard. Since it is in the completed assembly state, only the touch panel 20 of the touchpad module is exposed.

[0006] Currently, most touchpads utilize a modular design. The module typically consists of a Mylar sheet or glass, a printed circuit board (PCB), adhesive, and a support frame. The adhesive secures the Mylar sheet and PCB, while the support frame supports the entire touchpad. When the Mylar sheet is pressed, the contact points on the PCB come into contact with the sensing areas on the support frame, enabling the corresponding touch function.

[0007] For a touchpad with a modular design, if its touch panel, printed circuit board, carrier frame and other structures are assembled to the C-shell in the existing manner, the final positioning dimensional tolerance of the touchpad module on the C-shell is the result of the stacking of the dimensional tolerances of multiple components of the touchpad module, which can easily lead to an uneven gap between the touch panel of the touchpad module and the C-shell after assembly. Summary of the Invention

[0008] Therefore, the purpose of the present invention is to provide a touch panel assembly jig to solve the problem of uneven gap between the touch panel and the C-shell.

[0009] To achieve the above-mentioned objectives, the present invention provides a touchpad assembly jig, comprising an integrated cover plate and a frame. After the touchpad module to be assembled into the C-shell of the electronic device is placed into the assembly jig with the touch panel at the bottom for assembly, the cover plate extends in the horizontal direction and closely contacts the surface carrying the touch panel, and the frame extends in the vertical direction and surrounds the periphery of the touch panel. The inner wall of the frame and the periphery of the touch panel are configured to maintain a clearance fit of a first spacing; after the assembled assembly jig and touchpad module are assembled into the C-shell of the electronic device according to the preset assembly posture of the touchpad module, the outer wall of the frame and the inner edge of the C-shell surrounding frame are configured to maintain a clearance fit of a second spacing; the wall thickness of the frame between the periphery of the touch panel and the inner edge of the C-shell surrounding frame remains consistent.

[0010] Wherein, the assembly jig is made of metal.

[0011] Wherein, the material of the assembly fixture is SUS304.

[0012] Wherein, the first spacing is 0.02 mm.

[0013] Wherein, the second spacing is 0.02 mm.

[0014] Wherein, the wall thickness of the frame is 0.21 mm.

[0015] The cover plate and the frame are generally in the shape of a rectangular cover.

[0016] Wherein, the electronic device is a leather keyboard.

[0017] Wherein, the electronic device is a laptop computer.

[0018] In summary, the touch panel assembly jig of the present invention improves the uneven gap between the touch panel and the C-shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present invention apparent.

[0020] Figure 1 A schematic diagram of an assembly state of a conventional touch panel module;

[0021] Figure 2 This is a schematic diagram of the process of assembling a preferred embodiment of the touch panel assembly jig of the present invention together with a touch panel module;

[0022] Figure 3 This is a cross-sectional view of a preferred embodiment of the touch panel assembly jig of the present invention and the touch panel module in an assembled state;

[0023] Figure 4 This is a cross-sectional view of a preferred embodiment of the touchpad assembly jig of the present invention, the touchpad module, and the C-shell in an assembled state. DETAILED DESCRIPTION

[0024] See also Figures 2 to 4 , Figure 2 This is a schematic diagram of the process of assembling a preferred embodiment of the touch panel assembly jig of the present invention together with the touch panel module. Figure 3 For this purpose, a cross-sectional view of the preferred embodiment and the touch panel module in the assembled state is shown. Figure 4 This is a cross-sectional view of the preferred embodiment, the touch panel module, and the C-shell in the assembled state. Figure 2 The touch panel module, the assembly jig, and the assembly status of the touch panel module and the assembly jig according to the preferred embodiment are shown in order from top to bottom. Figure 3 A cross-sectional view taken along the BB direction of the touchpad module and assembly jig is depicted. The touchpad assembly jig of the present invention includes an integrated cover plate 30 and a frame 40, and is used to assemble a modular touchpad module on a C-shell, i.e., a front shell. The touchpad module primarily includes a touch panel 20 and a printed circuit board (PCB) assembled together. After the touchpad module to be assembled into the C-shell 10 of the electronic device is placed into the assembly jig with the touch panel 20 facing downwards, the cover plate 30 extends horizontally and closely contacts the surface supporting the touch panel 20. The frame 40 extends vertically and surrounds the periphery of the touch panel 20. The inner wall of the frame 40 is configured to maintain a clearance fit with the periphery of the touch panel 20 to maintain a first spacing.

[0025] By providing a gap between the frame 40 of the assembly jig and the periphery of the touch panel 20, the present invention can improve the touch panel module positioning dimensional tolerance from the cumulative dimensional tolerances of multiple touch panel module components to the direct assembly tolerance of the assembly jig and touch panel 2. This avoids the offset gaps in the prior art where the touch panel is directly mounted on the support frame, as well as the assembly offset gaps between the support frame positioning holes and the C-shell.

[0026] like Figure 4 As shown, after the assembled assembly jig and touchpad module are assembled into the C shell 10 of the electronic device according to the preset assembly posture of the touchpad module, the outer wall of the frame 40 and the inner edge of the C shell 10 surrounding the frame 40 are configured to maintain a clearance fit of the second spacing.

[0027] The wall thickness of the frame 40 between the periphery of the touch panel 20 and the inner edge of the C-shell 10 surrounding the frame 40 remains consistent.

[0028] When using the assembly jig of the present invention, the touchpad module is first assembled into the assembly jig, and then assembled together on the C-shell. Since the distance between the side edges of the assembly jig and the C-shell 10 is the second distance, the wall thickness of the frame 40 of the assembly jig is fixed between the two, and the distance between the assembly jig and the touch panel 20 is the first distance. Then, the touch module is locked to the C-shell, and the assembly jig of the present invention is removed to ensure that the gap between the touch panel 20 and the C-shell 10 is uniform.

[0029] In this preferred embodiment, the first spacing is 0.02 mm, the second spacing is 0.02 mm, and the wall thickness of the frame 40 is 0.21 mm. Thus, the gap between the touch panel 20 and the C-shell is maintained at 0.25 mm, which is the first spacing of 0.02 mm + the wall thickness of 0.21 mm + the second spacing of 0.02 mm, ensuring a uniform gap.

[0030] The assembly jig of the present invention can be made of metal. In this preferred embodiment, the material of the assembly jig is specifically made of stainless steel SUS304.

[0031] The specific shape of the fixture of the present invention can be determined based on the shapes of the touchpad module and touch panel. In this preferred embodiment, since the touch panel 20 is generally rectangular (with the four corners removed), the cover 30 and frame 40 are generally rectangular in shape to match the shape of the touch panel 20. In other embodiments, the cover and frame can adopt more complex shapes based on the specific shapes of the touchpad module and touch panel, such as a cover with a hollow structure or a circular cover.

[0032] The touchpad assembly jig of the present invention is applicable to various existing electronic devices that need to install a touchpad module. In this preferred embodiment, the electronic device is a leather keyboard. In other embodiments, the electronic device can also be a portable electronic device such as a laptop computer.

[0033] In summary, the touch panel assembly jig of the present invention improves the uneven gap between the touch panel and the C-shell.

[0034] As described above, for ordinary technicians in this field, various other corresponding changes and modifications can be made according to the technical solution and technical concept of the utility model, and all these changes and modifications should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A touch panel assembly jig, characterized in that: The invention comprises an integrated cover plate and a frame. After the touchpad module to be assembled into the C shell of the electronic device is placed into the assembly jig with the touch panel downward for assembly, the cover plate extends in the horizontal direction and closely contacts the surface carrying the touch panel, and the frame extends in the vertical direction and surrounds the periphery of the touch panel. The inner wall of the frame and the periphery of the touch panel are configured to maintain a clearance fit of a first spacing; after the assembled assembly jig and touchpad module are assembled into the C shell of the electronic device according to the preset assembly posture of the touchpad module, the outer wall of the frame and the inner edge of the C shell surrounding the frame are configured to maintain a clearance fit of a second spacing; the wall thickness of the frame between the periphery of the touch panel and the inner edge of the C shell surrounding the frame remains consistent.

2. The touch panel assembly jig according to claim 1, wherein: The assembly jig is made of metal.

3. The touch panel assembly jig according to claim 1, wherein: The material of the assembly fixture is SUS304.

4. The touch panel assembly jig according to claim 1, wherein: The first spacing is 0.02 mm.

5. The touch panel assembly jig according to claim 1, wherein: The second spacing is 0.02 mm.

6. The touch panel assembly jig according to claim 1, wherein: The wall thickness of the frame is 0.21 mm.

7. The touch panel assembly jig according to claim 1, wherein: The electronic device is a leather case keyboard.

8. The touch panel assembly jig according to claim 1, wherein: The electronic device is a notebook computer.

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