Switch easy to assemble

Abstract

The utility model belongs to the technical field of automobile switches, and particularly relates to a switch easy to assemble. Comprising a shell, the peripheral edge of the bottom of the shell is provided with a receding groove, and the peripheral wall of the shell is provided with a strip-shaped limiting groove communicating with the receding groove; the inner circumferential wall of the base is provided with a limiting convex strip, the limiting convex strip is arranged in the strip-shaped limiting groove, a positioning ring groove is formed in the base, and a positioning groove is further formed in the base; the periphery of the bottom of the elastic waterproof cover is provided with an annular flange, the annular flange is arranged on the positioning annular groove, the bottom end of the shell abuts against the upper surface of the annular flange, and the bottom of the elastic waterproof cover is provided with a pressing protruding block; the circuit board is arranged on the positioning groove, the upper surface of the circuit board is electrically connected with a microswitch, and the pressing convex block abuts against the microswitch; the button cap is arranged at the top of the elastic waterproof cover; the button cap is installed on the elastic waterproof cover, the circuit board and the elastic waterproof cover are sequentially placed on the base, the shell and the base are connected in a clamped mode, and the effects of being simple in structure and easy to assemble are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile switches, and in particular relates to a switch which is easy to assemble. Background Art

[0002] There are usually various types and functions of switches in the car, such as start switch, door unlock switch, door and window lift switch, etc. Among them, the start switch is a switch that controls the opening and closing of the car's starting system, which plays a vital role in the car.

[0003] In the prior art, the start switch of a car usually includes a housing, a button housing, a waterproof cover, a circuit board and a micro switch. In order to ensure the connection relationship between the various components, multiple connecting components are provided, resulting in a complex structure of the start switch and inconvenience in installation. Utility Model Content

[0004] The purpose of the utility model is to provide an easy-to-assemble switch in view of the above-mentioned technical problems. The switch is simple in structure and easy to assemble by installing a button cap on an elastic waterproof cover, placing a circuit board and the elastic waterproof cover on a base in sequence, and clamping the shell and the base.

[0005] In view of this, the utility model provides a switch that is easy to assemble, comprising:

[0006] The outer circumference of the bottom of the shell is provided with an avoidance groove along the upper axial direction, and the outer circumferential wall of the shell is axially provided with a strip-shaped limiting groove connected to the avoidance groove;

[0007] The base is provided with a limiting convex strip axially on the inner peripheral wall at the top, the limiting convex strip is arranged in the strip-shaped limiting groove, the base is provided with a positioning ring groove located below the limiting convex strip, and the base is also provided with a positioning groove located below the positioning ring groove;

[0008] An elastic waterproof cover is arranged in the shell, an annular flange is arranged on the peripheral edge of the bottom of the elastic waterproof cover, the annular flange is arranged on the positioning ring groove, the bottom end of the shell abuts against the upper surface of the annular flange, and a pressing protrusion is arranged at the bottom of the elastic waterproof cover;

[0009] The circuit board is arranged on the positioning groove, the upper surface of the circuit board is electrically connected with a micro switch, and the pressing protrusion abuts against the micro switch;

[0010] A button cap is arranged on the top of the elastic waterproof cover;

[0011] Among them, an avoidance ring groove is formed between the elastic waterproof cover and the pressing protrusion, an arc groove is arranged at one end of the strip limiting groove facing away from the avoidance groove, the strip limiting groove and the arc groove are connected by an extension groove, and a convex portion adapted to the extension groove and the arc groove is arranged at one end of the limiting protrusion.

[0012] In the above scheme, further, the inner peripheral wall of the button cap is provided with a snap-in groove, the outer peripheral wall of the elastic waterproof cover is provided with a snap-in convex ring, and the snap-in convex ring is arranged in the snap-in groove.

[0013] In the above solution, further, a plurality of grooves are arranged in an array along an upper circumference on the outer circumference of the top of the shell, and a thread is arranged on the outer circumferential wall of the shell.

[0014] In the above scheme, further, the button cap, the pressing protrusion and the elastic waterproof cover are all made of light-transmitting materials, the upper surface of the circuit board is also electrically connected to the lamp body, and an avoidance groove is provided at the bottom of the pressing protrusion.

[0015] In the above scheme, further, a limiting convex ring is arranged on the inner circumference of the top of the shell, and a limiting ring groove is arranged on the outer circumference of the top of the button cap, and the top of the limiting ring groove abuts against the bottom of the limiting convex ring.

[0016] In the above scheme, further, a plurality of guide grooves are radially arranged on the outer peripheral wall of the button cap, and the plurality of guide grooves are located below the limiting convex ring, and a plurality of guide strips are radially arranged on the inner peripheral wall of the shell, and the guide strips are arranged in the guide grooves.

[0017] In the above scheme, further, a sealing ring groove is arranged on the outer peripheral wall of the limiting ring groove, a sealing ring is arranged in the sealing ring groove, and the sealing ring abuts against the inner peripheral wall of the limiting convex ring.

[0018] In the above solution, further, a plurality of strip holes are arranged in a circumferential array on the circumference of the elastic waterproof cover.

[0019] The beneficial effects of the utility model are:

[0020] 1. By installing the button cap on the elastic waterproof cover, placing the circuit board and the elastic waterproof cover on the base in sequence, and clamping the housing and the base, a simple structure and easy assembly effect are achieved;

[0021] 2. Set the lamp body on the circuit board to facilitate observation of the working status of the switch;

[0022] 3. The guide groove and the guide strip cooperate to guide and limit the button cap, ensuring that the button cap moves in the radial direction and does not rotate in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the housing of the utility model;

[0027] Figure 5 It is a schematic structural diagram of the housing of the utility model from another viewing angle;

[0028] Figure 6 The utility model Figure 5 A schematic diagram of the structure at A;

[0029] Figure 7 It is a structural schematic diagram of the base of the utility model;

[0030] Figure 8 It is a structural schematic diagram of a cross section of the utility model.

[0031] The symbols in the figure are:

[0032] 1. Shell; 2. Base; 3. Elastic waterproof cover; 4. Circuit board; 5. Button cap; 6. Avoidance groove; 7. Strip limit groove; 8. Limiting convex strip; 9. Positioning ring groove; 10. Positioning groove; 11. Annular flange; 12. Pressing convex block; 13. Micro switch; 14. Avoidance ring groove; 15. Arc groove; 16. Extension groove; 17. Protrusion; 18. Snap-on groove; 19. Snap-on convex ring; 20. Groove; 21. Thread; 22. Lamp body; 23. Avoidance groove; 24. Limiting convex ring; 25. Limiting ring groove; 26. Guide groove; 27. Guide strip; 28. Sealing ring groove; 29. ​​Sealing ring; 30. Strip hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] Embodiment 1:

[0036] This embodiment provides a switch that is easy to assemble, including:

[0037] The housing 1 has an escape groove 6 formed on the outer periphery of the bottom of the housing 1 along the upper axial direction, and a strip-shaped limiting groove 7 connected to the escape groove 6 is axially provided on the outer peripheral wall of the housing 1;

[0038] The base 2 has a limiting convex strip 8 axially arranged on the inner peripheral wall at the top, the limiting convex strip 8 is arranged in the strip-shaped limiting groove 7, a positioning ring groove 9 is arranged in the base 2 below the limiting convex strip 8, and a positioning groove 10 is also arranged in the base 2 below the positioning ring groove 9;

[0039] The elastic waterproof cover 3 is arranged in the housing 1, and an annular flange 11 is arranged on the circumference of the bottom of the elastic waterproof cover 3. The annular flange 11 is arranged on the positioning ring groove 9. The bottom end of the housing 1 abuts against the upper surface of the annular flange 11. A pressing protrusion 12 is arranged at the bottom of the elastic waterproof cover 3;

[0040] The circuit board 4 is disposed on the positioning groove 10. The upper surface of the circuit board 4 is electrically connected to a micro switch 13. The pressing protrusion 12 abuts against the micro switch 13.

[0041] A button cap 5 is arranged on the top of the elastic waterproof cover 3;

[0042] Among them, an avoidance ring groove 14 is formed between the elastic waterproof cover 3 and the pressing protrusion 12, and an arc groove 15 is arranged at one end of the strip limiting groove 7 facing away from the avoidance groove 6. The strip limiting groove 7 and the arc groove 15 are connected by an extension groove 16, and a convex portion 17 adapted to the extension groove 16 and the arc groove 15 is arranged at one end of the limiting convex strip 8.

[0043] In the present technical solution, during installation, the button cap 5 is first installed on the elastic waterproof cover 3, and the circuit board 4 is placed on the positioning groove 10, wherein the circuit board 4 and the positioning groove 10 can be positioned by setting fastening screws or bonding, and the micro switch 13 can be welded on the circuit board 4, and then the annular flange 11 of the elastic waterproof cover 3 is placed on the positioning ring groove 9, and finally the housing 1 is installed on the base 2, so that the bottom end of the housing 1 is against the upper surface of the annular flange 11. The sealing between the housing 1 and the base 2 is achieved by the squeezing effect of the annular flange 11 between the bottom end of the housing 1 and the positioning ring groove 9, so as to prevent liquid from entering the gap between the elastic waterproof cover 3 and the housing 1 to cause leakage, short circuit and safety hazards, or prevent liquid from entering the gap between the elastic waterproof cover 3 and the base 2.

[0044] The shell 1 and the base 2 can be made of plastic, and the base 2 is sleeved on the bottom of the shell 1. A step surface for positioning the base 2 can be provided on the outer peripheral wall of the shell 1, and the arc length of the avoidance groove 6 can be greater than or equal to the limiting convex strip 8. When the shell 1 is installed on the base 2, the limiting convex strip 8 passes through the avoidance groove 6, so that the top of the base 2 contacts the step surface of the shell 1. At this time, the shell 1 is rotated so that the limiting convex strip 8 rotates into the strip-shaped limiting groove 7, so as to fix the shell 1 and the base 2 in the radial direction and avoid radial separation between the shell 1 and the base 2.

[0045] The width of the extension groove 16 is slightly smaller than the width of the strip limiting groove 7, the diameter of the arc groove 15 is slightly smaller than the width of the strip limiting groove 7, and the diameter of the arc groove 15 is slightly larger than the width of the extension groove 16, so that the protrusion 17 can smoothly pass along the strip limiting groove 7 and be clamped in the arc groove 15, so as to fix the shell 1 and the base 2 in the axial direction and prevent the shell 1 from axial rotation.

[0046] The elastic waterproof cover 3 and the pressing protrusion 12 can both be made of elastic materials, such as silicone material, and the elastic waterproof cover 3 and the pressing protrusion 12 can be integrally formed by using a mold stamping. An avoidance ring groove 14 is formed between the elastic waterproof cover 3 and the pressing protrusion 12, which can increase the deformation degree of the elastic waterproof cover 3 and make pressing more labor-saving. By pressing the button cap 5, the elastic waterproof cover 3 is elastically deformed, and then the pressing protrusion 12 triggers the micro switch 13, so that the switch is triggered.

[0047] In summary, by installing the button cap 5 on the elastic waterproof cover 3, placing the circuit board 4 and the elastic waterproof cover 3 on the base 2 in sequence, and snapping the shell 1 and the base 2 together, a simple structure and easy assembly are achieved.

[0048] Furthermore, the inner wall of the button cap 5 is provided with a snap-fit ​​groove 18 , and the outer wall of the elastic waterproof cover 3 is provided with a snap-fit ​​convex ring 19 , and the snap-fit ​​convex ring 19 is arranged in the snap-fit ​​groove 18 .

[0049] In this technical solution, the button cap 5 and the elastic waterproof cover 3 are snap-fitted to facilitate installation and removal.

[0050] Embodiment 2:

[0051] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0052] The outer circumference of the top of the shell 1 is provided with a plurality of grooves 20 in an array along the upper circumference, and the outer circumferential wall of the shell 1 is provided with threads 21 .

[0053] In the present technical solution, the switch can be threadedly connected to the vehicle body via the thread 21 on the housing 1, thereby facilitating installation.

[0054] The groove 20 is provided, and a tool can be inserted into the groove 20 and rotated to tighten or unscrew the switch.

[0055] Embodiment 3:

[0056] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0057] The button cap 5 , the pressing protrusion 12 and the elastic waterproof cover 3 are all made of light-transmitting materials. The upper surface of the circuit board 4 is also electrically connected to the lamp body 22 , and an avoidance groove 23 is provided at the bottom of the pressing protrusion 12 .

[0058] In the present technical solution, the lamp body 22 can be a lamp bead made of a light-emitting diode. The lamp body 22 emits light when it is powered on. The light passes through the pressing bump 12, the elastic waterproof cover 3 and the button cap 5 in sequence, which can indicate that the micro switch 13 has been triggered. When no light is seen, it can indicate that the micro switch 13 has not been triggered. Therefore, the lamp body 22 is provided to facilitate observation of the working status of the switch.

[0059] An escape groove 23 is provided at the bottom of the pressing protrusion 12 for avoiding the lamp body 22 when the button cap 5 is pressed downward.

[0060] Embodiment 4:

[0061] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0062] A limiting protruding ring 24 is arranged on the inner circumference of the top of the housing 1 , and a limiting ring groove 25 is arranged on the outer circumference of the top of the button cap 5 . The top of the limiting ring groove 25 abuts against the bottom of the limiting protruding ring 24 .

[0063] In the present technical solution, the button cap 5 is installed by passing upward from the bottom of the housing 1 , and the limiting protruding ring 24 is used to limit the button cap 5 to prevent the button cap 5 from falling off from the top of the housing 1 .

[0064] Embodiment 5:

[0065] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0066] The button cap 5 has a plurality of guide grooves 26 radially disposed on its outer peripheral wall, and the plurality of guide grooves 26 are located below the limiting convex ring 24 . The housing 1 has a plurality of guide strips 27 radially disposed on its inner peripheral wall, and the guide strips 27 are disposed in the guide grooves 26 .

[0067] In the present technical solution, the button cap 5 slides up and down on the inner wall of the shell 1 through the cooperation between the guide groove 26 and the guide strip 27. The cooperation between the guide groove 26 and the guide strip 27 plays a guiding and limiting role for the button cap 5, ensuring that the button cap 5 moves in the radial direction and ensuring that the button cap 5 does not rotate in the shell 1.

[0068] Embodiment 6:

[0069] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0070] A sealing ring groove 28 is arranged on the outer peripheral wall of the limiting ring groove 25 , and a sealing ring 29 is arranged in the sealing ring groove 28 . The sealing ring 29 abuts against the inner peripheral wall of the limiting convex ring 24 .

[0071] In the present technical solution, the sealing ring 29 is elastic and is sleeved in the sealing ring groove 28. The sealing ring 29 is used to seal between the button cap 5 and the housing 1 to prevent liquid from entering the gap between the housing 1 and the elastic waterproof cover 3, thereby playing a further sealing role.

[0072] Embodiment 7:

[0073] This embodiment provides a switch that is easy to assemble. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0074] The elastic waterproof cover 3 is provided with a plurality of strip-shaped holes 30 in a circumferential array on the circumference.

[0075] In the present technical solution, a plurality of strip-shaped holes 30 are provided to reduce the resistance when the elastic waterproof cover 3 is pressed.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A switch that is easy to assemble, characterized in that: include: A shell (1), wherein an avoidance groove (6) is provided on the outer periphery of the bottom of the shell (1) along the upper axial direction, and a strip-shaped limiting groove (7) connected to the avoidance groove (6) is axially provided on the outer peripheral wall of the shell (1); The base (2) has a limiting convex strip (8) axially arranged on the inner peripheral wall at the top, the limiting convex strip (8) is arranged in the strip-shaped limiting groove (7), the base (2) has a positioning ring groove (9) located below the limiting convex strip (8), and the base (2) also has a positioning groove (10) located below the positioning ring groove (9); An elastic waterproof cover (3) is arranged in the housing (1), an annular flange (11) is arranged on the circumference of the bottom of the elastic waterproof cover (3), the annular flange (11) is arranged on the positioning ring groove (9), the bottom end of the housing (1) abuts against the upper surface of the annular flange (11), and a pressing protrusion (12) is arranged on the bottom of the elastic waterproof cover (3); A circuit board (4) is arranged on the positioning groove (10); a micro switch (13) is electrically connected to the upper surface of the circuit board (4); and the pressing protrusion (12) abuts against the micro switch (13); A button cap (5) is arranged on the top of the elastic waterproof cover (3); An avoidance ring groove (14) is formed between the elastic waterproof cover (3) and the pressing protrusion (12); an arc groove (15) is provided at one end of the strip-shaped limiting groove (7) facing away from the avoidance groove (6); the strip-shaped limiting groove (7) and the arc groove (15) are connected via an extension groove (16); and a convex portion (17) adapted to the extension groove (16) and the arc groove (15) is provided at one end of the limiting convex strip (8).

2. A switch that is easy to assemble according to claim 1, characterized in that: The button cap (5) is provided with a clamping groove (18) on its inner peripheral wall, and the elastic waterproof cover (3) is provided with a clamping convex ring (19) on its outer peripheral wall. The clamping convex ring (19) is arranged in the clamping groove (18).

3. The switch according to claim 1, characterized in that: The outer circumference of the top of the shell (1) is provided with a plurality of grooves (20) in an array along the upper circumference, and the outer circumferential wall of the shell (1) is provided with a thread (21).

4. The switch according to claim 1, characterized in that: The button cap (5), the pressing protrusion (12) and the elastic waterproof cover (3) are all made of light-transmitting materials; the upper surface of the circuit board (4) is also electrically connected to a lamp body (22); and an avoidance groove (23) is provided at the bottom of the pressing protrusion (12).

5. The switch that is easy to assemble according to claim 1, characterized in that: A limiting convex ring (24) is arranged on the inner circumference of the top of the housing (1), and a limiting ring groove (25) is arranged on the outer circumference of the top of the button cap (5), and the top of the limiting ring groove (25) abuts against the bottom of the limiting convex ring (24).

6. The switch that is easy to assemble according to claim 5, characterized in that: The button cap (5) has a plurality of guide grooves (26) radially arranged on its outer peripheral wall, and the plurality of guide grooves (26) are located below the limiting convex ring (24); the housing (1) has a plurality of guide strips (27) radially arranged on its inner peripheral wall, and the guide strips (27) are arranged in the guide grooves (26).

7. The switch that is easy to assemble according to claim 5, characterized in that: A sealing ring groove (28) is arranged on the outer peripheral wall of the limiting ring groove (25), a sealing ring (29) is arranged in the sealing ring groove (28), and the sealing ring (29) abuts against the inner peripheral wall of the limiting convex ring (24).

8. The switch that is easy to assemble according to claim 7, characterized in that: A plurality of strip-shaped holes (30) are arranged in a circumferential array on the circumference of the elastic waterproof cover (3).

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