Waterproof switch with backlight

Abstract

The utility model provides a waterproof switch with backlight. The waterproof switch comprises an LED lamp. The electric plate structure comprises a circuit board and a wire, the LED lamp is installed in the center of the surface of the circuit board, and the wire is electrically connected with the circuit board; the limiting structure is mounted at the top end of the protection structure; the shell structure comprises a shell, an inserting rod, a light gathering cover, a limiting block and a clamping hole; the key structure is arranged in the upper end of the shell; the metal dome is arranged at the central position of the surface of the circuit board; the waterproof switch with backlight provided by the utility model has the advantages of being capable of enhancing the gathering of a light source to a beacon position, enabling the light transmission uniformity to be better, and having a better waterproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof switches, in particular to a backlit waterproof switch. Background Technique

[0002] A switch is a commonly used control electrical component, often used to connect or disconnect a 'control circuit' (where the current is very small), so as to achieve the purpose of controlling the connection of the current; the traditional switch waterproof design is to completely wrap the PCBA with rubber parts and increase the interference structure, so as to achieve the purpose of waterproofing the PCBA.

[0003] At present, for the design of conventional switches, the waterproofness generally involves covering the PCBA with rubber parts to play a waterproof role. For the structure of the light-transmitting part, it is realized by making the rubber parts thin-walled. However, the light-transmitting area made only by thinning the wall thickness of the rubber parts does not have light-gathering properties. During the light source irradiation process, the light scatters in all directions, thus reducing the brightness when reaching the beacon; in the current market, more and more vehicle models are designed to be more refined during the design stage, resulting in smaller switch button shapes and more compact internal structure layouts. When it is required that the switch beacon has a backlight, the space structure design is more difficult to meet.

[0004] Therefore, it is necessary to provide a new backlit waterproof switch to solve the above technical problems. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a backlit waterproof switch that can strengthen the aggregation of the light source to the beacon position, make the light transmission uniformity better, and at the same time have a good waterproof effect.

[0006] To solve the above technical problems, the waterproof switch with backlight provided by the present utility model includes: an LED lamp; a battery structure, the LED lamp is installed at the central position on the surface of the battery structure, the battery structure includes a circuit board and a wire, the LED lamp is installed at the central position on the surface of the circuit board, and the wire is electrically connected to the circuit board; a base structure, the base structure includes a base, a buckle and a support platform, the wire passes through the through hole inside the base, the circuit board abuts against the top end of the support platform, and the support platform is fixed to the inner side wall of the base, and the buckle is fixed to the side wall of the base; a protection structure, the protection structure is installed at the top end of the base, the protection structure includes a rubber pad, and the rubber pad snaps and closes the top opening of the base; a limiting structure, the limiting structure is installed at the top end of the protection structure; a housing structure, the housing structure includes a housing, a plug rod, a light condensing cover and a card hole, the limiting structure is installed inside the housing, the light condensing cover is installed at the central position inside the housing, the card hole is provided on the side wall at the bottom end of the housing, and the plug rod is fixed to the inner side wall at the upper end of the housing; a button structure, the button structure is installed inside the upper end of the housing, the button structure includes a protective cover, a button, a card slot and characters, the button is slidably connected to the housing, the bottom end of the protective cover is fixedly connected to the button, the card slot is provided on the side wall of the button, and the characters are provided at the central position on the top surface of the button; a dome switch, the dome switch is installed at the central position on the surface of the circuit board, and the dome switch is clamped between the rubber pad and the circuit board.

[0007] Preferably, the protection structure further includes a light guide and a limiting protrusion, the light guide is fixed at the center of the rubber pad and aligned with the LED lamp, the limiting protrusion is annularly fixed to the bottom surface of the rubber pad, and the limiting protrusion snaps into the inside of the circuit board.

[0008] Preferably, the limiting protrusion itself has elasticity, and the bottom end of the elastic limiting protrusion is circular and the top end is cylindrical.

[0009] Preferably, the limiting structure includes a slider, a projector, a limiting clamping platform and a limiting sleeve, the slider is slidably connected to the inside of the housing, the projector is installed at the center of the slider, and the light guide abuts and aligns with the projector.

[0010] Preferably, the limiting clamping platform with a trapezoidal side wall is provided on the inner side wall of the slider, and the limiting clamping platform is slidably connected to the side wall of the button and snaps into the inside of the card slot, and the limiting sleeve is fixed to the inner side wall of the slider, and the plug rod is slidably connected to the inside of the limiting sleeve.

[0011] Preferably, the condenser cover abuts against the center inside the projector, and the condenser cover, the LED lamp, the projector, the light guide and the character center are located on the same straight line.

[0012] Preferably, the base is slidably connected to the inside of the housing, and the buckle and the card hole are engaged with each other.

[0013] Compared with the related art, the backlight waterproof switch provided by the present invention has the following beneficial effects:

[0014] The present invention provides a backlight waterproof switch. First, the button structure and the limit structure are inserted from the upper and lower ends of the housing structure respectively, so that the button structure is engaged with the limit structure through the restriction of the housing structure, and then the button structure and the limit structure are positioned inside the housing structure, and the limit structure can be driven to slide inside the housing structure by pressing the button structure. By installing the battery structure inside the top surface of the base structure, under the support of the support platform in the base structure, the battery structure can be flush with the top surface of the base structure. Then, the dome switch is placed at the center position on the surface of the battery structure, and then the rubber pad is laid on the surface of the battery structure. The dome switch is clamped between the battery structure and the rubber pad, so that the limit protrusion fixed to the bottom surface of the rubber pad is aligned with the through hole provided on the surface of the battery structure. The surface of the rubber pad at the limit protrusion is squeezed, so that the limit protrusion penetrates the through hole provided on the battery board, and the rubber pad, the dome switch and the circuit board are fixedly connected together. At the same time, the rubber pad is clamped at the top opening of the base structure through the inner cavity provided at the bottom end, so as to seal the top opening of the base structure. Then, the housing structure is clamped on the top side wall of the base structure, and the edge of the protection structure is clamped, so that the upper opening of the base structure is sealed by the protection structure, and the upper and lower structures are connected together, and the light guide, the projector, the condenser cover and the character are on the same straight line. Furthermore, the character can be displayed on the surface of the button structure under the irradiation of the light guide. This device has the advantages of being able to strengthen the aggregation of the light source to the beacon position, making the light transmission uniformity better, and having a good waterproof effect at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the backlight waterproof switch provided by the present invention;

[0016] Figure 2 is Figure 1 the schematic structural diagram of the overall cross-section shown;

[0017] Figure 3 is Figure 2 a schematic structural diagram of the overall connection cross-section shown;

[0018] Figure 4 is Figure 3 a schematic top view structural diagram of the dome sheet shown.

[0019] Reference numerals in the figure: 1, LED lamp; 2, battery structure; 21, circuit board; 22, wire; 3, protection structure; 31, rubber pad; 32, light guide; 33, limiting protrusion; 4, limiting structure; 41, slider; 42, projector; 43, limiting clamping platform; 44, limiting sleeve; 5, housing structure; 51, housing; 52, insertion rod; 53, condenser cover; 54, clamping hole; 6, button structure; 61, protective cover; 62, button; 63, clamping groove; 64, character; 7, base structure; 71, base; 72, buckle; 73, support platform; 8, dome sheet. Specific embodiments

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Please refer to Figures 1 to 4 , wherein Figure 1 is a schematic structural diagram of a preferred embodiment of the waterproof switch with backlight provided by the present invention; Figure 2 is Figure 1 a schematic structural diagram of the overall cross-section shown; Figure 3 is Figure 2 a schematic structural diagram of the overall connection cross-section shown; Figure 4 is Figure 3 a schematic top view structural diagram of the dome sheet shown. The waterproof switch with backlight includes: LED lamp 1; battery structure 2, the LED lamp 1 is installed at the central position on the surface of the battery structure 2, the battery structure 2 includes a circuit board 21 and a wire 22, the LED lamp 1 is installed at the central position on the surface of the circuit board 21, and the wire 22 is electrically connected to the circuit board 21 for facilitating the connection of the circuit board 21 with external electrical components through the wire 22.

[0022] The dome switch 8 is installed at the central position on the surface of the circuit board 21, and the dome switch 8 is clamped between the rubber pad 31 and the circuit board 21. The protection structure 3 further includes a light guide body 32 and a limit protrusion 33; the light guide body 32 is fixed at the center of the rubber pad 31 and aligned with 1. The limit protrusions 33 are annularly distributed and fixed on the bottom surface of the rubber pad 31, and the limit protrusions 33 are engaged with the inside of the circuit board 21; during the installation process of the circuit board 21 and the dome switch 8, the dome switch 8 and the rubber pad are sequentially placed on the surface of the circuit board 21, and the rubber pad 31 is squeezed. The rubber pad 31 drives the limit protrusions 33 to penetrate through the through holes provided on the surface of the circuit board 21. The bottom end of the elastic limit protrusion 33 is circular and the top end is cylindrical. The limit protrusion 33 is deformed by extrusion during the process of penetrating the through hole. When the frustum-shaped end of the limit protrusion 33 passes through the through hole, the limit protrusion 33 resets, so that the limit protrusion 33 is stuck on the surface of the circuit board 21, thereby fixing the circuit board 21, the dome switch 8 and the rubber pad 31 together. A right through hole is opened at the central position of the dome switch 8. The structure of the perforated dome switch 8 and the rubber pad effectively ensures the irradiation uniformity after the beacon is lit.

[0023] The limiting structure 4 is installed at the top end of the protection structure 3; the housing structure 5 includes a housing 51, a plug 52, a condenser hood 53 and a card hole 54. The limiting structure 4 is installed inside the housing 51. The condenser hood 53 is installed at the central position inside the housing 51. The card hole 54 is provided on the side wall of the bottom end of the housing 51. The plug 52 is fixed on the inner side wall of the upper end of the housing 51; the limiting structure 4 includes a slider 41, a projector 42, a limiting clamping platform 43 and a limiting sleeve 44. The slider 41 is slidably connected to the inside of the housing 51. The projector 42 is installed at the center of the slider 41, and the light guide body 32 abuts and aligns with the projector 42; the limiting clamping platform 43 with a trapezoidal side wall is provided on the inner side wall of the slider 41, and the limiting clamping platform 43 is slidably connected to the side wall of the button 62 and engaged with the inside of the card slot 63. The limiting sleeve 44 is fixed on the inner side wall of the slider 41, and the plug 52 is slidably connected to the inside of the limiting sleeve 44; when installing the housing 51 and the slider 41, the slider 41 is placed inside the housing 51, the limiting sleeve 44 inside the slider 41 is aligned with the plug 52, and the plug 52 enters the inside of the limiting sleeve 44, so that the slider 41 can slide along the plug 52 inside the housing 51.

[0024] A key structure 6, wherein the key structure 6 is installed inside the upper end of the shell 51, and the key structure 6 includes a protective cover 61, a button 62, a slot 63 and a character 64. The button 62 is slidably connected to the shell 51, and the bottom end of the protective cover 61 is fixedly connected to the button 62. The slot 63 is arranged on the side wall of the button 62, and the character 64 is arranged at the center of the top surface of the button 62. The protective cover 61 is placed into the shell 51, and the slot 63 is aligned with the limit card platform 43. The protective cover 61 is squeezed to make the protective cover 61 enter the inside of the shell 51. The elastic button 62 squeezes the slider 41 and slides over the side wall of the slider 41. When the limit sleeve 44 is aligned with the slot 63, the button 62 is reset, so that the limit card platform 43 is engaged with the inside of the slot 63, thereby connecting the slider 41, the shell 51 and the button 62 together.

[0025] A seat structure 7, the seat structure 7 includes a base 71, a buckle 72 and a support platform 73, the wire 22 passes through the through hole inside the base 71, the circuit board 21 contacts the top of the support platform 73, and the support platform 73 is fixed to the inner wall of the base 71, and the buckle 72 is fixed to the side wall of the base 71; a protective structure 3, the protective structure 3 is installed on the top of the base 71, the protective structure 3 includes a rubber pad 31, the rubber pad 31 is engaged with and closes the top opening of the base 71; it is convenient for the rubber pad 31 to seal the top opening of the base 71, thereby protecting the circuit board 21 installed inside from the outside world, effectively preventing water infiltration, and the top surface and bottom surface of the rubber pad 31 are respectively engaged with the limit block 54 and the base 71.

[0026] The focussing cover 53 is in contact with the center of the projector 42. The centers of the focussing cover 53, the LED lamp 1, the projector 42, the light guide 32 and the characters 64 are located on the same straight line. In order to facilitate the projection of the LED lamp 1, the light source passes through the projector 42, the light guide 32 and the projection guide and enters the interior of the focussing cover 53 to reduce the emission of the light source. Under the action of the focussing cover 53, the light emitted by the LED lamp 1 will be concentrated on the characters 64, thereby making the characters 64 more conspicuous.

[0027] In the specific implementation process, Figure 1 , Figure 2 and Figure 3As shown, the base 71 is slidably connected to the interior of the shell 51, and the buckle 72 is engaged with the locking hole 54. When the buckle enters the interior of the shell, the buckle will be squeezed and deformed. When the buckle is aligned with the locking hole, the buckle is reset and engaged in the locking hole to fix the base 71 inside the shell 51. The top surface of the base 71 and the inner side wall of the shell 51 are in contact with each other to squeeze the side wall edge of the rubber pad 31, so as to increase the squeezing force and sealing between the rubber pad 31 and the top surface of the base 71 and the shell 51.

[0028] The working principle of the waterproof switch with backlight provided by the utility model is as follows:

[0029] During installation, first install the slider 41 from the bottom end of the housing 51, so that the limit sleeve 44 is sleeved on the bottom end of the plug rod 52. The position of the slider 41 is restricted by the limit sleeve 44, so that the slider 41 slides along the plug rod 52 through the limit sleeve 44 to the inside of the bottom end of the housing 51. Then insert the button 62 from the top end of the housing 51, so that the button 62 and the slider 41 are snap-connected through the limit clamping platform 43 and the clamping groove 63, so that the positions of the slider 41 and the button 62 are restricted inside the housing 51. Then install the circuit board 21 inside the top end of the base 71, so that the bottom wire 23 passes through the jack 73 provided inside the base 71. Supported by the support table 74, the circuit board 21 is at the opening of the top end of the base 71. Then install the dome switch 8 at the center position of the surface of the circuit board 21, so that it is sleeved on the periphery of the LED lamp 1. Then cover the rubber pad 31 on the surface of the circuit board 21. The rubber pad 31 can be sleeved on the top end of the base 71 through the groove provided at the bottom end. The limit protrusion 33 fixed on the bottom surface of the rubber pad 31 passes through the through hole provided on the surface of the circuit board 21, so that the rubber pad 31 is connected to the circuit board 21. Then, the housing 51 equipped with the button 62 and the slider 41 is sleeved from the top end of the base 71, so that the bottom end of the projector 42 abuts against the top surface of the light guide 32. The housing 51 is snap-connected to the base 71 through the clamping hole 54 provided on the side wall and the buckle 72 fixed on the side wall of the base 71. At the same time, the inner side wall of the housing 51 abuts against the edge of the surface of the rubber pad 31. Under the clamping of the housing 51 and the base 71, the gap between the housing 51 and the base 71 is sealed. When the button 62 is pressed, the slider 41 will be pushed to slide downward, thereby driving the projector 42 to squeeze the light guide 32, driving the rubber pad 31 outside the light guide to deform, and thus generating elastic force. At the same time, the deformed rubber pad 31 squeezes the dome switch 8 directly below. The elastic dome switch 8 bends downward to contact the circuit on the circuit board 21, so that the LED lamp 1 is electrically connected to the circuit board 21 through the dome switch 8, and the LED lamp 1 is turned on to emit light. This device has the advantages of being able to strengthen the aggregation of the light source to the beacon position, making the light transmission uniformity better, and at the same time having a good waterproof effect.

[0030] Compared with the related art, the backlit waterproof switch provided by the present utility model has the following beneficial effects:

[0031] The utility model provides a waterproof switch with backlight. First, the key structure 6 and the limit structure 4 are inserted into the upper and lower ends of the housing structure 5 respectively, so that the key structure 6 is engaged with the limit structure 4 through the restriction of the housing structure 5, and then the key structure 6 and the limit structure 4 are positioned inside the housing structure 5, and the limit structure 4 can be driven to slide inside the housing structure 5 by pressing the key structure 6. By installing the battery structure 2 inside the top surface of the base structure 7, under the support of the support platform 73 in the base structure 7, the battery structure 2 can be flush with the top surface of the base structure 7. Then, the dome switch 8 is placed at the center position of the surface of the battery structure 2, and then the rubber pad 31 is laid on the surface of the battery structure 2, and the dome switch 8 is clamped between the battery structure 2 and the rubber pad 31, so that the limit protrusion 33 fixed to the bottom surface of the rubber pad 31 is aligned with the through hole provided on the surface of the battery structure 2. The surface of the rubber pad 31 at the limit protrusion 33 is squeezed, so that the limit protrusion 33 penetrates the through hole provided on the circuit board, and the rubber pad 31, the dome switch 8 and the circuit board 21 are fixedly connected together. At the same time, the rubber pad 31 is clamped at the top opening of the base structure 7 through the inner cavity provided at the bottom end thereof, so as to seal the top opening of the base structure 7. Then, the housing structure 5 is clamped on the top side wall of the base 71 structure, and the edge of the protection structure 3 is clamped, so that the upper opening of the base 71 structure is sealed by the protection structure 3, and the upper and lower structures are connected together, so that the light guide 32, the projector 42, the condenser cover 53 and the character 64 are on the same straight line. Furthermore, the character 64 can be displayed on the surface of the key structure 6 under the irradiation of the light guide 32. This device has the advantages of being able to strengthen the aggregation of the light source to the beacon position, making the light transmission uniformity better, and at the same time having a good waterproof effect.

[0032] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A backlit waterproof switch, characterized in that, Comprising; LED lamp (1); Battery structure (2), the battery structure (2) includes a circuit board (21) and a wire (22), the LED lamp (1) is installed at the center position on the surface of the circuit board (21), and the wire (22) is electrically connected to the circuit board (21); Sitting platform structure (7), the sitting platform structure (7) includes a base (71), a buckle (72) and a support platform (73), the wire (22) passes through the through hole inside the base (71), the circuit board (21) abuts against the top end of the support platform (73), and the support platform (73) is fixed to the inner side wall of the base (71), and the buckle (72) is fixed to the side wall of the base (71); Protection structure (3), the protection structure (3) is installed at the top end of the base (71), the protection structure (3) includes a rubber pad (31), and the rubber pad (31) engages and closes the top opening of the base (71); Limiting structure (4), the limiting structure (4) is installed at the top end of the protection structure (3); Outer shell structure (5), the outer shell structure (5) includes a housing (51), a plug rod (52), a light condensing cover (53) and a card hole (54), the limiting structure (4) is installed inside the housing (51), the light condensing cover (53) is installed at the center position inside the housing (51), the card hole (54) is provided on the side wall of the bottom end of the housing (51), and the plug rod (52) is fixed to the inner side wall of the upper end of the housing (51); Button structure (6), the button structure (6) is installed inside the upper end of the housing (51), the button structure (6) includes a protective cover (61), a button (62), a card slot (63) and a character (64), the button (62) is slidably connected to the housing (51), the bottom end of the protective cover (61) is fixedly connected to the button (62), the card slot (63) is provided on the side wall of the button (62), and the character (64) is provided at the center position of the top surface of the button (62); Dome switch (8), the dome switch (8) is installed at the center position on the surface of the circuit board (21), and the dome switch (8) is clamped between the rubber pad (31) and the circuit board (21).

2. The backlighted waterproof switch according to claim 1, wherein The protection structure (3) further includes a light guide body (32) and a limiting protrusion (33), the light guide body (32) is fixed at the center of the rubber pad (31) and aligned with the LED lamp (1), the limiting protrusions (33) are annularly distributed and fixed to the bottom surface of the rubber pad (31), and the limiting protrusions (33) engage with the inside of the circuit board (21).

3. The backlighted waterproof switch according to claim 2, characterized in that, The limiting protrusion itself has elasticity, and the bottom end of the elastic limiting protrusion (33) is frustum-shaped and the top end is cylindrical.

4. The backlighted waterproof switch according to claim 2, wherein, The limiting structure (4) includes a slider (41), a projector (42), a limiting boss (43) and a limiting sleeve (44). The slider (41) is slidably connected to the inside of the housing (51). The projector (42) is installed at the center inside the slider (41), and the light guide (32) abuts and aligns with the projector (42).

5. The backlighted waterproof switch according to claim 4, wherein, The limiting boss (43) with a trapezoidal side wall is arranged on the inner side wall of the slider (41). The limiting boss (43) is slidably connected to the side wall of the button (62) and engages with the inside of the card slot (63). The limiting sleeve (44) is fixed to the inner side wall of the slider (41), and the insertion rod (52) is slidably connected to the inside of the limiting sleeve (44).

6. The backlighted waterproof switch according to claim 4, wherein, The condenser cover (53) abuts against the center inside the projector (42). The centers of the condenser cover (53), the LED lamp (1), the projector (42), the light guide (32) and the character (64) are located on the same straight line.

7. The backlighted waterproof switch according to claim 2, wherein, The base (71) is slidably connected to the inside of the housing (51), and the buckle (72) engages with the card hole (54).

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