A snap-on key housing

Abstract

The utility model provides a kind of buckle type key shell, belong to control panel technical field, including key main cover plate, base, aluminum plate, two open cover body, PCB circuit board and key, base is installed on aluminum plate, base and aluminum plate buckle setting, PCB circuit board is placed on base, key is installed on the upper surface of PCB circuit board, two open cover body is symmetrical structure, is placed above PCB circuit board, two open cover body and base buckle setting, key is set out two open cover body, two key main cover plates are buckled on two open cover body.The utility model is through the connecting structure of aluminum plate, base, two open cover body and key main cover plate on setting, modularization splicing is realized, the compact cooperation of each layer structure, not only reduce the thickness of whole shell after assembly, and through the installation mode of toolless buckle, shorten the overall assembly time;In addition, the design of the connection mode and the connection position of each structure connecting piece of the utility model improves the overall connection reliability.

Description

Technical Field

[0001] This utility model belongs to the field of control panel technology, and in particular relates to a snap-on button housing. Background Technology

[0002] With the rapid development of smart homes, wall-mounted smart control panels (such as switches, thermostats, and scene panels) have become an important part of modern residential and commercial spaces. These panels not only need to meet functional requirements, but also need to consider aesthetics, ease of installation, and long-term reliability.

[0003] Currently, smart home wall panels generally adopt a composite structure of metal frame + plastic base shell to improve the product's texture and structural strength. In terms of fixing method, the industry generally relies on M3 / M4 screws for fixing, and internal reinforcing ribs are designed to ensure overall rigidity. However, the existing solution has inherent contradictions in structural design: (1) To meet the strength requirements, screw holes and reinforcing ribs must be retained, making it difficult to reduce the thickness; (2) The difference in thermal expansion coefficients between metal and plastic materials may cause the joints to loosen after long-term use; (3) The screw fixing method increases assembly time (it needs to be tightened one by one) and increases maintenance difficulty (risk of stripping screws).

[0004] It is evident that traditional button housings, secured with screws, suffer from drawbacks such as large housing thickness (typically ≥10mm), cumbersome assembly processes, reliance on specialized tools for maintenance, and the risk of thread stripping from repeated disassembly and reassembly. This structure not only affects the product's aesthetics and increases construction and maintenance costs but also reduces its reliability and lifespan.

[0005] The aforementioned shortcomings severely restrict the application of smart home panels in high-end scenarios, especially in the hotel and commercial space sectors that pursue minimalist ultra-thin design, rapid installation, and tool-free maintenance. Breakthrough solutions are urgently needed. Utility Model Content

[0006] The problem to be solved by this utility model is to provide a snap-on button housing.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a snap-fit ​​button housing, including a main button cover plate, a base, an aluminum plate, two-opening covers, a PCB circuit board, and a button. The base is installed on the aluminum plate and is snapped into place with the aluminum plate. The PCB circuit board is placed on the base, and the button is installed on the upper surface of the PCB circuit board. The two-opening covers have a symmetrical structure and are placed above the PCB circuit board. The two-opening covers are snapped into place with the base. The button extends out of the two-opening covers, and the two main button covers are snapped into the two-opening covers.

[0008] Furthermore, the base has a square structure, which includes a main frame and a recessed part surrounded by the main frame. The bottom of the recessed part is provided with two rectangular heat dissipation holes for heat dissipation. The main frame is provided with two symmetrical openings. The upper surface of the main frame is provided with upper connecting hooks at the four corners, and the lower surface is provided with lower connecting hooks at the four corners.

[0009] Furthermore, the aluminum plate has a square structure and includes an aluminum plate frame with a hollowed-out center. Circular holes are located at the four corners of the aluminum plate frame. Rectangular protruding pieces are symmetrically arranged along the inner edge of the aluminum plate frame, each with an elliptical hole arranged in a different direction. Grooves are located at the four corners of the inner edge of the aluminum plate frame. These grooves cooperate with the lower connecting hooks of the base to connect and fix the aluminum plate to the base.

[0010] Furthermore, the elliptical holes in the aluminum plate are configured to correspond to the openings in the base.

[0011] Furthermore, the PCB circuit board has four open rectangular slots on its edge, which correspond to the upper connecting hooks on the base. The rectangular slots surround the upper connecting hooks, and buttons are respectively provided on the PCB circuit board near the four corners.

[0012] Furthermore, the two-opening cover includes two symmetrically arranged button covers. Each button cover has a rectangular cutout corresponding to the button position. A support and reset structure is symmetrically arranged on both sides of the rectangular cutout. One end of the support and reset structure is connected to the button cover, and the other end is raised and suspended. A cover hook extending downward is provided between one side of the support and reset structure and the outer edge of the button cover. Rectangular through holes are provided at the upper and lower ends of the button cover, and a cylindrical protrusion is provided at the center of each side of the button cover.

[0013] Furthermore, the rectangular cutout is used for the extension of the button; the cover hook is configured to cooperate with the upper connecting hook of the base to connect and fix the two opening covers to the base.

[0014] Furthermore, the main button cover plate is mounted on the button cover body. The main button cover plate has a rectangular cover structure with a flat outer surface and an edge frame-shaped protrusion on the inner edge. An inner frame-shaped protrusion coaxially arranged with the edge frame-shaped protrusion is also present on the inner surface of the main button cover plate, with a gap between them. Two cross-shaped button trigger keys are located on the inner surface of the main button cover plate, symmetrically positioned along the short axis and the long axis. Two semi-circular insertion protrusions are symmetrically arranged on the inner frame-shaped protrusion, located along the short axis of the main button cover plate. Each insertion protrusion has a limiting groove and engages with a cylindrical protrusion on the button cover body. The limiting groove of the insertion protrusion is inserted into the cylindrical protrusion, creating a rotatable connection between the main button cover plate and the button cover body.

[0015] Furthermore, the button trigger key corresponds to the position of the button. After the main button cover is closed, the button can be operated by pressing the position of the button trigger key. At the same time, the support and reset structure also plays a supporting and reset role for the main button cover.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] This invention achieves modular assembly through connecting structures such as grooves, hooks, and protrusions on the aluminum plate, base, two-opening cover, and main button cover. The compact cooperation of each layer not only reduces the overall thickness of the shell after assembly (to below 7mm), but also shortens the overall assembly time through tool-less snap-fit ​​installation (traditional screw fixing takes more than 30 seconds, while this invention reduces installation time by 70% through the snap-fit ​​structure). At the same time, the design of the connection method and connection position of each structural connector in this invention improves the overall connection reliability. In addition, eliminating screws and auxiliary accessories also reduces the material cost of this invention.

[0018] As can be seen, this utility model reduces the thickness of the shell, achieving a thinner and lighter appearance; it adopts a tool-free snap-fit ​​installation method, which shortens the assembly time and reduces material costs; the snap-fit ​​structure has been optimized to ensure long-term reliability; while achieving an ultra-thin design, it can still maintain the IP67 protection level, meeting the usage requirements of high-demand scenarios such as hotels.

[0019] In summary, this utility model significantly improves the aesthetics, space adaptability, installation efficiency, and maintenance convenience of the product, providing a more optimized solution for the switch panel industry. Attached Figure Description

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples. The advantages and implementation methods of the present invention will become more apparent then. The contents shown in the accompanying drawings are for illustrative purposes only and do not constitute any limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the aluminum plate of this utility model.

[0022] Figure 2 This is a structural schematic diagram of the base of this utility model.

[0023] Figure 3 This is a partial structural diagram of the bottom of the base of this utility model.

[0024] Figure 4 This is a schematic diagram of the PCB circuit board of this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the two-opening cover of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model.

[0027] Figure 7 This is a schematic diagram of the assembly of the base and aluminum plate of this utility model.

[0028] Figure 8 This is a schematic diagram of the assembly of the PCB circuit board and the base of this utility model.

[0029] Figure 9 This is an assembly diagram of the two-opening cover of this utility model.

[0030] Figure 10 This is an assembly diagram of the button main cover plate of this utility model.

[0031] Figure 11 This is a schematic diagram of the overall structure of the present invention after assembly.

[0032] In the picture:

[0033] 1. Button main cover; 2. Base; 3. Aluminum plate; 4. Two-opening cover; 5. PCB circuit board; 6. Button; 11. Limiting groove; 12. Edge frame-shaped protrusion; 13. Internal frame-shaped protrusion; 14. Gap; 15. Button trigger key; 16. Insertion protrusion; 21. Main frame; 22. Recessed part; 23. Heat dissipation hole; 24. Opening; 25. Upper connecting hook; 26. Lower connecting hook; 31. Aluminum plate frame; 32. Round hole; 33. Protruding piece; 34. Oval hole; 35. Groove; 41. Button cover; 42. Rectangular cutout; 43. Support and reset structure; 44. Cover hook; 45. Rectangular through hole; 46. Cylindrical protrusion; 51. Rectangular groove. Detailed Implementation

[0034] like Figures 1 to 11 As shown, this utility model discloses a snap-on button housing, including a main button cover plate 1, a base 2, an aluminum plate 3, a two-opening cover body 4, a PCB circuit board 5, and a button 6. The base 2 is installed on the aluminum plate 3 and is snapped onto the aluminum plate 3. The PCB circuit board 5 is placed on the base 2, and the button 6 is installed on the upper surface of the PCB circuit board 5. The two-opening cover body 4 has a symmetrical structure and is placed above the PCB circuit board 5. The two-opening cover body 4 is snapped onto the base 2, and the button 6 extends out of the two-opening cover body 4. The two main button covers 1 are snapped onto the two-opening cover body 4.

[0035] like Figure 2 and Figure 3 As shown, the base 2 has a square structure. The base 2 includes a main frame 21 and a recessed part 22 surrounded by the main frame 21. Two rectangular heat dissipation holes 23 are provided at the bottom of the recessed part 22 for heat dissipation. Two openings 24 are symmetrically arranged on the main frame 21. Upper connecting hooks 25 are provided at the four corners of the upper surface of the main frame 21, and lower connecting hooks 26 are provided at the four corners of the lower surface.

[0036] like Figure 1 As shown, the aluminum plate 3 has a square structure and includes an aluminum plate frame 31. The aluminum plate frame 31 has a hollow center and round holes 32 at the four corners. Rectangular protruding pieces 33 are symmetrically arranged on the inner edge of the aluminum plate frame 31. Each of the two protruding pieces 33 has an elliptical hole 34, which are arranged in different directions (90° in this embodiment). Grooves 35 are provided at the four corners of the inner edge of the aluminum plate frame 31. The grooves 35 are engaged with the lower connecting hooks 26 of the base 2 to connect and fix the aluminum plate 3 to the base 2.

[0037] The elliptical hole 34 of the aluminum plate 3 is set to correspond to the opening 24 of the base 2.

[0038] like Figure 4 As shown, the PCB circuit board 5 has four open rectangular slots 51 on its edge. The rectangular slots 51 are corresponding to the upper connecting hooks 25 on the base 2. The rectangular slots 51 surround the upper connecting hooks 25. Buttons 6 are respectively provided on the PCB circuit board 5 near the four corners.

[0039] like Figure 5As shown, the two-opening cover 4 includes two symmetrically arranged button covers 41. A rectangular cutout 42 is provided on the button cover 41 corresponding to the position of the button 6. A support and reset structure 43 is symmetrically arranged on both sides of the rectangular cutout 42. One end of the support and reset structure 43 is connected to the button cover 41, and the other end is raised and suspended. A cover hook 44 extending downward is provided between one side of the support and reset structure 43 and the outer edge of the button cover 41. A rectangular through hole 45 is provided at the upper and lower ends of the button cover 41, and a cylindrical protrusion 46 is provided at the center of the side of the button cover 41.

[0040] The rectangular cutout 42 is used for the extension of the button 6; the cover hook 44 is set in conjunction with the upper connecting hook 25 of the base 2 to connect and fix the two opening covers 4 to the base 2.

[0041] like Figure 6 As shown, the main cover plate 1 of the button is a rectangular cover structure. The outer surface of the main cover plate 1 is flat, and the inner surface of the main cover plate 1 has an edge frame-shaped protrusion 12. The inner surface of the main cover plate 1 has an inner frame-shaped protrusion 13 coaxially arranged with the edge frame-shaped protrusion 12. A gap 14 is provided between the edge frame-shaped protrusion 12 and the inner frame-shaped protrusion 13. Two cross-shaped button trigger keys 15 are provided on the inner surface of the main cover plate 1. The two button trigger keys 15 are located at the button... On the long axis of the main cover plate 1, and symmetrically arranged with respect to the short axis; two semi-circular insertion protrusions 16 are symmetrically arranged on the internal frame-shaped protrusion 13. The two insertion protrusions 16 are located on the short axis of the main cover plate 1. A limiting groove 11 is provided on the insertion protrusion 16. The insertion protrusion 16 is matched with the cylindrical protrusion 46 of the two-opening cover body 4. The limiting groove 11 of the insertion protrusion 16 is inserted into the cylindrical protrusion 46, so that the connection between the main cover plate 1 and the two-opening cover body 4 forms a rotatable connection.

[0042] Among them, the button trigger key 15 corresponds to the position of button 6. After the main cover plate 1 of the button is closed, the button 6 can be operated by pressing the position of the button trigger key 15. At the same time, the support and reset structure 43 also plays a supporting and reset role for the main cover plate 1 of the button.

[0043] The main cover plate 1 of the button is made of existing high-strength composite material, which balances lightweight and durability.

[0044] Assembly method of this utility model:

[0045] (1) such as Figure 7 As shown, align the four lower connecting hooks 26 of the base 2 with the grooves 35 at the four corners of the aluminum plate 3, press them into the aluminum plate 3, and snap the lower connecting hooks 26 into the grooves 35 to assemble the base 2 and the aluminum plate 3.

[0046] (2) such as Figure 8As shown, the PCB circuit board 5 is placed vertically downward into the base 2, with the rectangular slot 51 avoiding the upper connecting hook 25, thus enabling the PCB circuit board 5 to be installed on the base 2.

[0047] (3) such as Figure 9 As shown, align the cover hook 44 of the two-opening cover 4 with the upper connecting hook 25 of the base 2, press down the four corners vertically, and you can hear a "click" sound. The hooks at the four corners are locked, thus assembling the two-opening cover 4 with the base 2.

[0048] (4) such as Figure 10 and Figure 11 As shown, align the limiting grooves 11 of the two-end insert protrusions 16 of the button main cover plate 1 with the cylindrical protrusions 46 on the side of the two-opening cover body 4 below, and gently press so that the limiting grooves 11 can be inserted into the cylindrical protrusions 46, thereby realizing the assembly of the button main cover plate 1 and the two-opening cover body 4.

[0049] There are two main button covers 1, which are respectively attached to the two button covers 41 of the two-opening covers 4.

[0050] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A snap-fit ​​button housing, characterized in that: The device includes a main button cover, a base, an aluminum plate, two-opening covers, a PCB circuit board, and buttons. The base is mounted on the aluminum plate and is fastened to the aluminum plate. The PCB circuit board is placed on the base, and the buttons are mounted on the upper surface of the PCB circuit board. The two-opening covers have a symmetrical structure and are placed above the PCB circuit board. The two-opening covers are fastened to the base, and the buttons extend out of the two-opening covers. Two main button covers are fastened to the two-opening covers.

2. The snap-fit ​​button housing according to claim 1, characterized in that: The base includes a main frame and a recessed portion surrounded by the main frame. The bottom of the recessed portion is provided with two rectangular heat dissipation holes for heat dissipation. The main frame is provided with two symmetrical openings. The upper surface of the main frame is provided with upper connecting hooks at the four corners, and the lower surface is provided with lower connecting hooks at the four corners.

3. The snap-fit ​​button housing according to claim 2, characterized in that: The aluminum plate includes an aluminum plate frame with a hollowed-out center. Rectangular protruding pieces are symmetrically arranged on the inner edge of the aluminum plate frame, and each of the two protruding pieces has an elliptical hole. Grooves are provided at the four corners of the inner edge of the aluminum plate frame. The grooves are configured to cooperate with the lower connecting hooks of the base to connect and fix the aluminum plate to the base.

4. The snap-fit ​​button housing according to claim 3, characterized in that: The elliptical holes in the aluminum plate correspond to the openings in the base.

5. The snap-fit ​​button housing according to claim 2, characterized in that: The PCB circuit board has four open rectangular slots on its edge, which correspond to the upper connecting hooks on the base. The rectangular slots surround the upper connecting hooks, and buttons are respectively provided on the PCB circuit board near the four corners.

6. The snap-fit ​​button housing according to claim 5, characterized in that: The dual-opening cover includes two symmetrically arranged button covers. Each button cover has a rectangular cutout corresponding to the button position. A support and reset structure is symmetrically arranged on both sides of the rectangular cutout. One end of the support and reset structure is connected to the button cover, and the other end is raised and suspended. A cover hook extending downward is provided between one side of the support and reset structure and the outer edge of the button cover. Rectangular through holes are provided at the top and bottom ends of each button cover, and a cylindrical protrusion is provided at the center of each side of the button cover.

7. The snap-fit ​​button housing according to claim 6, characterized in that: The rectangular cutout is used for the extension of the button; the cover hook is configured to cooperate with the upper connecting hook of the base to connect and fix the two opening covers to the base.

8. The snap-fit ​​button housing according to claim 6, characterized in that: The main button cover plate is mounted on the button cover body. The inner surface of the main button cover plate has an edge frame-shaped protrusion, and the inner surface of the main button cover plate also has an inner frame-shaped protrusion coaxially arranged with the edge frame-shaped protrusion. A gap is provided between the edge frame-shaped protrusion and the inner frame-shaped protrusion. Two cross-shaped button trigger keys are provided on the inner surface of the main button cover plate. Two semi-circular insertion protrusions are symmetrically arranged on the inner frame-shaped protrusions. Each insertion protrusion has a limiting groove. The insertion protrusions are fitted into cylindrical protrusions on the button cover body, and the limiting grooves of the insertion protrusions are inserted into the cylindrical protrusions, forming a rotatable connection between the main button cover plate and the button cover body.

9. The snap-fit ​​button housing according to claim 8, characterized in that: The button trigger key corresponds to the position of the button. After the main button cover is closed, the button can be operated by pressing the button trigger key. At the same time, the support and reset structure also supports and resets the main button cover.

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