Button

Abstract

The utility model discloses a button. A microswitch and a light-emitting lamp bead are integrated into a whole by a circuit board; the microswitch and the light-emitting lamp bead are located in the center of the upper side face of the circuit board substrate. The waterproof cover is installed between the shell and the circuit board. The edge of the waterproof cover is matched with the annular shallow groove in the lower side face of the shell partition plate. After the plurality of riveting holes arranged on the substrate of the circuit board and the riveting columns on the lower side face of the shell partition board are pressed in a matched mode, the waterproof cover plays a role in protecting the microswitch and the lamp beads of the core of the circuit board. According to the button, the circuit board integrated with the microswitch and the light-emitting lamp bead is arranged in the lower groove defined by the lower wall of the shell, waterproof sealing is achieved through the waterproof cover, and the button is small in thickness, waterproof, convenient to install and smooth to press.

Description

Technical Field

[0001] This utility model relates to buttons, and more particularly to a thin, waterproof button structure for elevators. Background Technology

[0002] As elevators are part of a building, some clients require them to meet the "General Building Fire Protection Code" and for their control components to achieve an IPX5 waterproof rating, thus creating the need for waterproof buttons.

[0003] Utility model patent CN201521055259.2 discloses a waterproof elevator button, which includes an outer frame with external threads, a circuit board at the bottom of the outer frame, an elastic washer and a transmission component inside the outer frame, the transmission component being located above the elastic washer, a screw cap with internal threads that mates with the external threads on the outside of the outer frame, and a waterproof ring on the upper outer side of the outer frame that mates with the screw cap. This dual waterproofing method, achieved by the waterproof ring providing an interference fit between the outer frame and the screw cap, and by the elastic washer providing an interference fit between the transmission component and the inner part of the outer frame, prevents the elevator button from being easily penetrated by sand and water, protecting the internal circuit board and extending its service life. However, this utility model patent has a large number of components, low integration, and the button assembly relies on threads and self-tapping screws, resulting in poor installation convenience and disassembly, increasing manufacturing and maintenance costs.

[0004] Patent application CN201710710918.9 discloses a waterproof elevator button. Several waterproof elevator buttons are installed at equal intervals on an operating box. Each waterproof elevator button includes a cover plate, a central connecting part, a button part, and a bottom shell. The cover plate is fitted onto the button and fixed to the upper surface of the central connecting part by fasteners. The central connecting part is located between the cover plate and the bottom shell. The bottom shell and the central connecting part are fixedly connected by sealant. The central connecting part includes a first waterproof seal and a connecting body. The connecting body has equally spaced grooves for mounting the button, and the bottom of the grooves has upward-protruding bosses. The button has multiple waterproof sealing measures to prevent water from seeping into the operating box through gaps in the various components. The central connecting part of the button has a drainage groove, which collects some of the seeping liquid through a gap between the side of the boss and the side of the groove, allowing it to drain out of the operating box. However, this patent application uses two layers of waterproof seals to fill the gaps between the moving parts of the button, which can easily affect the smoothness of button pressing and may even cause the button to jam.

[0005] Utility model patent CN201921643181.4 discloses a waterproof button for elevators, including a fixed frame. A waterproof mechanism is fixedly installed inside the fixed frame, and the waterproof mechanism includes a button slidably connected to the inner cavity of the fixed frame. A limiting frame is fixedly connected to the inner circumferential side of the fixed frame, and a waterproof piston is fixedly connected to the inner circumferential side of the limiting frame. The waterproof piston is fitted against the outer circumferential side of the button. Both the outer circumferential side of the button and the inner circumferential side of the limiting frame are fixedly equipped with threaded grooves. Multiple spring fixing blocks are fixedly installed inside the fixed frame, and these spring fixing blocks are fitted against one side of the button. This utility model patent improves the waterproof effect by using a torsion spring to rotate the button, thereby increasing the friction between the button and the waterproof piston. However, this utility model patent has a complex internal component design. Although the torsion spring rotates the button to increase the friction between the button and the waterproof piston, it may also cause the button to jam when pressed. Furthermore, the button is relatively thick, making it difficult to design a suitable mounting carrier. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a button that is thin, waterproof, easy to install, and smooth to press.

[0007] To solve the above-mentioned technical problems, the button provided by this utility model includes a housing 7, a circuit board 9, and a waterproof cover 8;

[0008] The housing 7 includes a partition 70, an upper wall 71 and a lower wall 72. The upper wall 71 extends upward along the periphery of the partition 70 to form an upper groove, and the lower wall 72 extends downward along the periphery of the partition 70 to form a lower groove.

[0009] The partition 70 has a partition hole 700 in the center, and a coaxial annular shallow groove 701 around the partition hole 700 on its lower side. Multiple downward protruding rivet posts 702 are formed around the annular shallow groove 701 on its lower side.

[0010] The circuit board 9 is fixedly installed into the lower groove of the housing 7 by the riveting post 702 on the lower side of the partition 70 of the housing 7;

[0011] The circuit board 9 has rivet holes 91 on its periphery that are adapted to the plurality of rivet posts 702, and a micro switch and a light bulb are provided in the center of its upper side.

[0012] The waterproof cover 8 is made of elastic material and is installed between the housing 7 and the circuit board 9;

[0013] The edge of the waterproof cover 8 matches the annular shallow groove 701 on the lower side of the partition 70 of the housing 7. After the rivet post 702 on the lower side of the partition 70 is pressed together with the rivet hole 91 of the circuit board 9, the waterproof cover 8 covers the micro switch and the light-emitting lamp bead. The edge of the waterproof cover 8 is embedded and pressed tightly against the annular shallow groove 701.

[0014] Preferably, the waterproof cover 8 is umbrella-shaped, and the edge thickness of the waterproof cover 8 is 1.01 to 1.2 times the depth of the annular shallow groove 701.

[0015] Preferably, the thickness of the circuit board 9 is 0.8 to 1 times the depth of the groove in the housing 7.

[0016] Preferably, the button further includes a button cover 3, a button frame 1, and a light guide plate 4;

[0017] The housing 7 has a rectangular partition 70, and a plurality of protrusions 721 are formed on the outer side of its lower wall 72.

[0018] The button cover 3 has a rectangular bottom outline with an upward-facing columnar structure 31 in the middle.

[0019] The button frame 1 is rectangular in shape, with a button hole 10 in the center that matches the columnar structure 31 in the middle of the button cover (3), and multiple hook-shaped feet 11 that match the multiple protrusions 721 extending downward around its periphery.

[0020] By engaging the multiple hook-shaped feet 11 extending downward from the periphery of the button frame 1 with the multiple protrusions 721, the button frame 1 is assembled and fixed to the housing 7;

[0021] The button cover 3 has an upward-facing cylindrical structure 31 in the middle that passes through the button hole 10 in the center of the button frame 1, and its periphery is pressed between the periphery of the button frame 1 and the upper side of the partition plate 70 of the housing 7.

[0022] Preferably, the upper surface of the cylindrical structure in the center of the button cover 3 has graphic information.

[0023] Preferably, the button frame 1 has an annular wall 13 extending upward along the outer side of the button hole 10;

[0024] The button frame 1 has an annular waterproof foam structure 14 that is coaxially sleeved outside the annular wall 13 and attached to its upper surface.

[0025] Preferably, the button also includes a light guide plate 4 and a helical spring 6.

[0026] The housing 7 has a mounting base 703 at each of the four corners of the upper side of the partition 70, and vertical guide grooves are formed on the inner side of the upper wall 71 on the front and rear sides of the upper groove.

[0027] The light guide plate 4 is rectangular, with a slot 42 at each of the four corners of its lower side.

[0028] Four helical springs 6 have their lower ends mounted on corresponding mounting bases 703 and their upper ends placed in corresponding slots 42.

[0029] The light guide plate 4 has outwardly protruding guide feet 41 on its front and rear sides, which are adapted to the guide groove.

[0030] By inserting the guide foot 41 of the light guide plate 4 into the corresponding guide groove inside the upper wall 71 of the upper groove of the housing 7, the light guide plate 4 is assembled into the upper groove of the housing 7.

[0031] The light guide plate 4 is disposed between the button cover 3 and the housing 7 partition plate 70, and causes the helical spring 6 to be compressed and deformed.

[0032] When the light guide plate 4 is subjected to downward pressure, the light guide plate 4 moves downward along the guide groove, which increases the compressive deformation force of the helical spring 6.

[0033] Preferably, the light guide plate 4 is a light-transmitting plastic part with a diamond-cut structure on the lower side, which plays a role in uniform light distribution and ensures the uniformity of light emission.

[0034] Preferably, the light guide plate 4 has an upwardly extending sidewall formed on the periphery of its upper side surface, forming a shallow light guide groove that is adapted to the bottom of the button cover 3.

[0035] The bottom of the button cover 3 is pre-fixed in the light guide shallow groove.

[0036] Preferably, the button further includes a filter film 5;

[0037] Multiple downward-convex cylinders 43 are formed on the lower side of the light guide plate 4.

[0038] The filter film 5 is a rectangular plastic light-diffusing film;

[0039] The filter film 5 is formed with a plurality of mounting holes 51 that are adapted to the plurality of convex cylinders 43;

[0040] The filter film 5 is pre-fixed to the lower side of the light guide plate 4 by the cooperation of the mounting hole 51 and the lower convex cylinder 43;

[0041] The filter film 5 and the helical spring 6 are both disposed between the light guide plate 4 and the partition plate 70 of the housing 7.

[0042] Preferably, the button further includes a waterproof rubber ring 2;

[0043] The waterproof rubber ring 2 is fitted around the upper wall 71 that forms the groove of the shell 7;

[0044] When the button frame 1 and the housing 7 are joined, the waterproof rubber ring 2 is pressed together to form a sealing structure.

[0045] Preferably, the housing 7 has a U-shaped protective cover 73 extending outward to the circumferential side formed on its lower wall;

[0046] The cable outlet of the circuit board 9, which is fixedly installed in the lower groove of the housing 7, is placed inside the U-shaped protective cover 73 and is thus protected by the U-shaped protective cover 73.

[0047] A drainage outlet 79 is formed at the junction of the upper wall 71 on one or both sides of the U-shaped protective cover 73 and the partition 70.

[0048] The button of this invention integrates a micro switch and an LED on a circuit board 9. The micro switch and LED are located in the center of the upper side of the circuit board 9 substrate. A waterproof cover 8 is installed between the housing 7 and the circuit board 9, with the edge of the waterproof cover 8 matching the annular shallow groove 701 on the lower side of the partition 70 of the housing 7. After being pressed together by multiple riveting holes 91 on the circuit board 9 substrate and riveting posts 702 on the lower side of the partition 70 of the housing 7, the waterproof cover 8 protects the core micro switch and LED of the circuit board 9. This button, with the circuit board 9 integrating the micro switch and LED placed in the lower groove formed by the lower wall 72 of the housing 7 and sealed with waterproof cover 8, is thin, waterproof, easy to install, and provides smooth pressing. Attached Figure Description

[0049] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0050] Figure 1 This is an exploded view of an embodiment of the button of this utility model;

[0051] Figure 2 This is a perspective view of an embodiment of the button of this utility model;

[0052] Figure 3 This is a top view of the housing of an embodiment of the button of this utility model;

[0053] Figure 4 This is a lower side view of the housing of an embodiment of the button of this utility model;

[0054] Figure 5 This is a top view of a circuit board of an embodiment of the button of this utility model;

[0055] Figure 6This is a top view of the circuit board and waterproof cover after they are assembled into the housing, according to one embodiment of the button of this utility model.

[0056] Figure 7 This is a perspective view of the button cover of one embodiment of the button of this utility model;

[0057] Figure 8 This is a perspective view of the button frame according to an embodiment of the button of this utility model;

[0058] Figure 9 This is a top view of the light guide plate of one embodiment of the button of this utility model;

[0059] Figure 10 This is a lower view of the light guide plate of one embodiment of the button of this utility model;

[0060] Figure 11 This is a top view of the filter film in one embodiment of the button of this utility model;

[0061] Figure 12 This is a schematic diagram of the button frame and button cover of one embodiment of the button of this utility model assembled into the housing.

[0062] Explanation of reference numerals in the attached figures:

[0063] 1. Button frame; 10. Button round hole; 11. Hook-shaped locking foot; 13. Enclosure; 14. Waterproof foam structure; 2. Waterproof rubber ring; 3. Button cover; 31. Cylindrical structure; 4. Light guide plate; 41. Guide foot; 42. Slot; 43. Lower convex cylinder; 5. Filter film; 51. Mounting hole; 6. Helical spring; 7. Housing; 70. Partition plate; 700. Partition plate round hole; 701. Circular shallow groove; 702. Riveting post; 703. Mounting base; 71. Upper wall; 72. Lower wall; 721. Protrusion; 73. U-shaped protective cover; 79. Drain outlet; 8. Waterproof cover; 9. Circuit board; 91. Riveting hole. Detailed Implementation

[0064] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0065] Example 1

[0066] like Figure 1 , Figure 2 As shown, a button includes a housing 7, a circuit board 9, and a waterproof cover 8;

[0067] like Figure 3 , Figure 4As shown, the housing 7 includes a partition 70, an upper wall 71 and a lower wall 72. The upper wall 71 extends upward along the periphery of the partition 70 to form an upper groove, and the lower wall 72 extends downward along the periphery of the partition 70 to form a lower groove.

[0068] The partition 70 has a partition circular hole 700 in the center, and a coaxial annular shallow groove 701 around the partition circular hole 700 on its lower side. Multiple (e.g., four) downward protruding rivet posts 702 are formed around the annular shallow groove 701 on its lower side.

[0069] like Figure 5 As shown, the circuit board 9 is fixedly installed into the lower groove of the housing 7 by the riveting post 702 on the lower side of the partition 70 of the housing 7;

[0070] The circuit board 9 has rivet holes 91 on its periphery that are adapted to the plurality of (e.g., four) rivet posts 702, and a micro switch and a light bulb are provided in the center of its upper side.

[0071] The waterproof cover 8 is made of elastic material and is installed between the housing 7 and the circuit board 9;

[0072] like Figure 6 As shown, the edge of the waterproof cover 8 matches the annular shallow groove 701 on the lower side of the partition 70 of the housing 7. After the rivet post 702 on the lower side of the partition 70 is pressed together with the rivet hole 91 of the circuit board 9, the waterproof cover 8 covers the micro switch and the light-emitting lamp bead. The edge of the waterproof cover 8 is embedded and pressed tightly against the annular shallow groove 701.

[0073] In the button of Embodiment 1, the circuit board 9 integrates a micro switch and an LED. The micro switch and LED are located in the center of the upper side of the circuit board 9 substrate. A waterproof cover 8 is installed between the housing 7 and the circuit board 9, and the edge of the waterproof cover 8 matches the annular shallow groove 701 on the lower side of the partition 70 of the housing 7. After being pressed together by multiple riveting holes 91 on the circuit board 9 substrate and riveting posts 702 on the lower side of the partition 70 of the housing 7, the waterproof cover 8 protects the core micro switch and LED of the circuit board 9. The button of Embodiment 1, with the integrated micro switch and LED circuit board 9 set in the lower groove formed by the lower wall 72 of the housing 7 and waterproofed by the waterproof cover 8, is thin, waterproof, easy to install, and smooth to press, and can be used as a waterproof button for elevators.

[0074] Example 2

[0075] Based on the button in Embodiment 1, the waterproof cover 8 is umbrella-shaped, and the edge thickness of the waterproof cover 8 is 1.01 to 1.2 times the depth of the annular shallow groove 701.

[0076] Preferably, the thickness of the circuit board 9 is 0.8 to 1 times the depth of the groove in the housing 7.

[0077] In the second embodiment, the center of the waterproof cover 8 coincides with the center of the micro switch on the circuit board 9 during installation. The outer edge of the waterproof cover 8 is attached to the coaxial annular shallow groove 701 outside the circular hole 700 in the center of the partition 70 of the housing 7. The edge thickness of the waterproof cover 8 is slightly greater than the depth of the annular shallow groove 701. When the riveting hole 91 on the circuit board 9 and the riveting post 702 on the lower side of the partition 70 are installed together, the edge of the waterproof cover 8 can be pressed tightly, which can waterproof and protect the micro switch and light bulb on the circuit board 9.

[0078] Example 3

[0079] Based on Embodiment 1, the button also includes a button cover 3, a button frame 1, and a light guide plate 4;

[0080] The housing 7 has a rectangular partition 70 and a plurality of (e.g., four) protrusions 721 formed on the outer side of its lower wall 72;

[0081] like Figure 7 As shown, the button cover 3 has a rectangular bottom outline with an upward-facing columnar structure 31 in the middle.

[0082] like Figure 8 As shown, the button frame 1 is rectangular in shape, with a button hole 10 in the center that matches the columnar structure 31 in the middle of the button cover (3), and a plurality of hook-shaped feet 11 that match the plurality of protrusions 721 extending downward around its periphery.

[0083] like Figure 12 As shown, the button frame 1 is assembled and fixed to the housing 7 by engaging multiple (e.g., four) hook-shaped latches 11 extending downward from the periphery of the button frame 1 with the multiple protrusions 721;

[0084] The button cover 3 has an upward-facing cylindrical structure 31 in the middle that passes through the button hole 10 in the center of the button frame 1, and its periphery is pressed between the periphery of the button frame 1 and the upper side of the partition plate 70 of the housing 7.

[0085] Preferably, the upper surface of the cylindrical structure in the center of the button cover 3 is injection molded with corresponding graphic information.

[0086] Preferably, the button frame 1 has an annular wall 13 extending upward along the outer side of the button hole 10;

[0087] The button frame 1 has an annular waterproof foam structure 14 that is coaxially sleeved outside the annular wall 13 and attached to its upper surface.

[0088] After the button is installed on the mounting plate, the mounting plate will press down the waterproof foam to prevent liquid from entering the button from the side.

[0089] Example 4

[0090] Based on Embodiment 3, the button also includes a light guide plate 4 and a helical spring 6.

[0091] The housing 7 has a mounting base 703 at each of the four corners of the upper side of the partition 70, and vertical guide grooves are formed on the inner side of the upper wall 71 on the front and rear sides of the upper groove.

[0092] like Figure 9 , Figure 10 As shown, the light guide plate 4 is rectangular, with a slot 42 at each of the four corners of its lower side.

[0093] Four helical springs 6 have their lower ends mounted on corresponding mounting bases 703 and their upper ends placed in corresponding slots 42.

[0094] The light guide plate 4 has outwardly protruding guide feet 41 on its front and rear sides, which are adapted to the guide groove.

[0095] By inserting the guide foot 41 of the light guide plate 4 into the corresponding guide groove inside the upper wall 71 of the upper groove of the housing 7, the light guide plate 4 is assembled into the upper groove of the housing 7.

[0096] The light guide plate 4 is disposed between the button cover 3 and the housing 7 partition plate 70, and causes the helical spring 6 to be compressed and deformed.

[0097] When the light guide plate 4 is subjected to downward pressure, the light guide plate 4 moves downward along the guide groove, which increases the compressive deformation force of the helical spring 6.

[0098] Preferably, the light guide plate 4 is a light-transmitting plastic part with a diamond-cut structure on the lower side, which plays a role in uniform light distribution and ensures the uniformity of light emission.

[0099] Preferably, the light guide plate 4 has an upwardly extending sidewall formed on the periphery of its upper side surface, forming a shallow light guide groove that is adapted to the bottom of the button cover 3.

[0100] The bottom of the button cover 3 is pre-fixed in the light guide shallow groove.

[0101] Example 5

[0102] Based on Embodiment 4, the button further includes a filter film 5;

[0103] The lower side of the light guide plate 4 has multiple (e.g., four) downward convex cylinders 43.

[0104] like Figure 11 As shown, the filter film 5 is a rectangular plastic light-diffusing film;

[0105] The filter film 5 is formed with a plurality of (e.g., four) mounting holes 51 that are adapted to the plurality of (e.g., four) convex cylinders 43;

[0106] The filter film 5 is pre-fixed to the lower side of the light guide plate 4 by the cooperation of the mounting hole 51 and the lower convex cylinder 43;

[0107] The filter film 5 and the helical spring 6 are both disposed between the light guide plate 4 and the partition plate 70 of the housing 7.

[0108] In Embodiment 5, the light guide plate 4 is connected to the corresponding guide groove on the inner side of the upper wall 71 of the upper groove of the housing 7 through the outwardly protruding guide foot 41, thereby fixing the helical spring 6 and the filter film 6 in the upper groove of the housing 7.

[0109] Example 6

[0110] Based on Embodiment 5, the button further includes a waterproof rubber ring 2;

[0111] The waterproof rubber ring 2 is fitted around the upper wall 71 that forms the groove of the shell 7;

[0112] When the button frame 1 and the housing 7 are combined, the waterproof rubber ring 2 is pressed to form a sealing structure, ensuring that the button frame 1 and the housing 7 are connected as a whole.

[0113] Preferably, the housing 7 has a U-shaped protective cover 73 extending outward to the circumferential side formed on its lower wall;

[0114] The cable outlet of the circuit board 9, which is fixedly installed in the lower groove of the housing 7, is placed inside the U-shaped protective cover 73 and is thus protected by the U-shaped protective cover 73.

[0115] Preferably, a drainage port 79 is formed at the junction of the upper wall 71 on one or both sides of the U-shaped protective cover 73 and the partition 70, so that liquid can be discharged through the drainage port 79 under the action of gravity after entering the shell 7.

[0116] The housing 7 can be a one-piece injection molded part.

[0117] The button in Embodiment Six has a simple and versatile housing 7 structure. All components work together to form a complete, mechanically reliable, thin, waterproof button through a snap-fit ​​structure. It is easy to install. While ensuring structural waterproofing (meeting the IPX5 waterproof rating of the button), it also ensures the smoothness of pressing the mechanical button, reduces the number of button components, improves the utilization of the internal space of the button, and reduces the thickness of the button.

[0118] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A button, characterized in that, It includes a housing (7), a circuit board (9), and a waterproof cover (8); The shell (7) includes a partition (70), an upper wall (71) and a lower wall (72). The upper wall (71) extends upward along the periphery of the partition (70) to form an upper groove, and the lower wall (72) extends downward along the periphery of the partition (70) to form a lower groove. The partition (70) has a partition hole (700) in the center, and a coaxial annular shallow groove (701) around the partition hole (700) on its lower side. Multiple downward protruding rivet posts (702) are formed around the annular shallow groove (701) on its lower side. The circuit board (9) is fixedly installed in the lower groove of the housing (7) by the rivet post (702) on the lower side of the partition (70) of the housing (7); The circuit board (9) has rivet holes (91) on its periphery that are adapted to the plurality of rivet posts (702), and a micro switch and a light bulb are provided in the center of its upper side. The waterproof cover (8) is made of elastic material and is installed between the housing (7) and the circuit board (9); The edge of the waterproof cover (8) matches the annular shallow groove (701) on the lower side of the partition (70) of the housing (7). After the rivet post (702) on the lower side of the partition (70) is pressed together with the rivet hole (91) of the circuit board (9), the waterproof cover (8) covers the micro switch and the light bulb. The edge of the waterproof cover (8) is embedded and pressed together with the annular shallow groove (701).

2. The button according to claim 1, characterized in that, The waterproof cover (8) is umbrella-shaped, and the edge thickness of the waterproof cover (8) is 1.01 to 1.2 times the depth of the annular shallow groove (701).

3. The button according to claim 1, characterized in that, The thickness of the circuit board (9) is 0.8 to 1 times the depth of the groove in the housing (7).

4. The button according to claim 1, characterized in that, The button also includes a button cover (3), a button frame (1), and a light guide plate (4); The shell (7) has a rectangular partition (70) and a plurality of protrusions (721) formed on the outer side of its lower wall (72); The button cover (3) has a rectangular bottom outline with an upward columnar structure (31) in the middle; The button frame (1) is rectangular in shape, with a button hole (10) in the center that matches the columnar structure (31) in the middle of the button cover (3), and multiple hook-shaped feet (11) that match the multiple protrusions (721) extending downwards around its periphery. By engaging the multiple hook-shaped feet (11) extending downward from the periphery of the button frame (1) with the multiple protrusions (721), the button frame (1) is assembled and fixed to the housing (7); The button cover (3) has an upward-facing cylindrical structure (31) in the middle that passes through the button hole (10) in the center of the button frame (1), and its periphery is pressed between the periphery of the button frame (1) and the upper side of the partition plate (70) of the housing (7).

5. The button according to claim 4, characterized in that, The upper surface of the cylindrical structure in the center of the button cover (3) has graphic information.

6. The button according to claim 4, characterized in that, The button frame (1) has an annular wall (13) extending upward along the outer side of the button hole (10); The button frame (1) has an annular waterproof foam structure (14) that is coaxially sleeved outside the annular wall (13) attached to its upper surface.

7. The button according to claim 4, characterized in that, The button also includes a light guide plate (4) and a helical spring (6); The housing (7) has a mounting base (703) at each of the four corners of the upper side of the partition (70), and a vertical guide groove is formed on the inner side of the upper wall (71) on the front and rear sides of the upper groove. The light guide plate (4) is rectangular, with a slot (42) at each of the four corners of its lower side. Four helical springs (6) are respectively mounted on corresponding mounting bases (703) at their lower ends and respectively placed in corresponding slots (42) at their upper ends; The light guide plate (4) has outwardly protruding guide feet (41) on its front and rear sides, which are adapted to the guide groove. By inserting the guide foot (41) of the light guide plate (4) into the corresponding guide groove inside the upper wall (71) of the upper groove of the housing (7), the light guide plate (4) is assembled into the upper groove of the housing (7); The light guide plate (4) is disposed between the button cover (3) and the partition plate (70) of the housing (7) and causes the helical spring (6) to be deformed under pressure; When the light guide plate (4) is subjected to downward pressure, the light guide plate (4) moves downward along the guide groove, which increases the compressive deformation force of the helical spring (6).

8. The button according to claim 7, characterized in that, The light guide plate (4) is a light-transmitting plastic part with a diamond-cut structure on the lower side, which plays a role in uniform light distribution and ensures the uniformity of light emission.

9. The button according to claim 7, characterized in that, The light guide plate (4) has an upwardly extending sidewall formed on the periphery of its upper side, forming a shallow light guide groove that is adapted to the bottom of the button cover (3). The bottom of the button cover (3) is pre-fixed in the light guide shallow groove.

10. The button according to claim 7, characterized in that, The button also includes a filter membrane (5); The lower side of the light guide plate (4) has multiple downward convex cylinders (43); The filter film (5) is a rectangular plastic light-diffusing film; The filter film (5) has a plurality of mounting holes (51) adapted to the plurality of convex cylinders (43); The filter film (5) is pre-fixed to the lower side of the light guide plate (4) by the cooperation of the mounting hole (51) and the convex cylinder (43); The filter film (5) and the helical spring (6) are both disposed between the light guide plate (4) and the partition plate (70) of the housing (7).

11. The button according to claim 10, characterized in that, The button also includes a waterproof rubber ring (2); The waterproof rubber ring (2) is fitted around the upper wall (71) that forms the groove of the shell (7); When the button frame (1) and the housing (7) are joined, the waterproof rubber ring (2) is pressed together to form a sealing structure.

12. The button according to claim 1, characterized in that, The housing (7) has a U-shaped protective cover (73) extending outward to the periphery on its lower wall; The cable outlet of the circuit board (9) fixedly installed in the lower groove of the housing (7) is placed inside the U-shaped protective cover (73) and thus protected by the U-shaped protective cover (73); A drainage outlet (79) is formed at the junction of the upper wall (71) on one or both sides of the U-shaped protective cover (73) and the partition (70).

Images