CN218299674U - Touch switch with self-sealing waterproof performance - Google Patents

Abstract

The utility model discloses a dab switch with self sealss waterproof performance, including more than one independent switch spare, every switch spare all includes apron, button, metal shrapnel and insulating base, wherein, establishes first waterproof arch on the insulating base, establishes waterproof base on the button, establishes the waterproof arch of second on the waterproof base. The utility model has simple structure, convenient assembly and lower production cost, can firmly fix the button on the insulating base by arranging the first waterproof bulge, the waterproof base, the buffer groove, the positioning bulge and the second waterproof bulge, can collect foreign matters and liquid falling from the cover plate, avoid the foreign matters and the liquid from falling into the metal elastic sheet and the insulating base, and has better waterproof and dustproof sealing effects; through establishing upper and lower two-layer metal shrapnel and two independent function shrapnels, can promote user's pressing and feel, avoid the maloperation, the security is higher to can promote touch switch's sensitivity higher, ensure the stable switch function of touch switch simultaneously.

Description

Touch switch with self-sealing waterproof performance

Technical Field

The utility model relates to a dab switch technical field, in particular to dab switch with self sealss waterproof performance.

Background

At present, a tact switch generally comprises an insulating base, a metal spring, a plastic/metal key and a cover plate, wherein during assembly, the key is pressed against the spring and then is installed on the insulating base, and then the metal cover plate is used for pressing and buckling the insulating base from the top to complete the assembly of the tact switch. It can be seen from the composition and assembly process that the touch switch light of the structure generally has no waterproof function, and the product has waterproof performance in the production process by adding a waterproof sealing element on a circuit board below the switch piece or on the rear periphery of the surface of the touch switch (or a switch product) and the like. For example, on a patent product with the publication number of CN216849720U, an independent protection plate 8 is arranged below the switch button 5, a through groove 9 attached to the outer wall of the switch button 5 is arranged on the protection plate 8, only a general dustproof and foreign matter-proof effect can be achieved, the requirement on the form and position precision of the through groove 9 is high, the processing cost is high, the through groove and the switch button 5 are in interference fit, and the assembly efficiency between the through groove and the switch button is not too high; on the patent product with the publication number of CN213093088U, the sealing plate 5 and the flexible sealing cloth 7 are additionally arranged on the periphery of the light-touch switch body 1, and the sealing ring 9 is sleeved on the periphery of the pin of the light-touch switch body, so that the waterproof sealing effect is good, the assembly process is relatively complex, and the material cost and the assembly cost of the product are high. Under the background that manpower and raw materials cost rise constantly at present, need continuously improve and optimize the structural design of product, under the prerequisite that satisfies the user demand, continuously reduce the manufacturing cost of product, promote production efficiency.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a dab switch with self sealss waterproof performance, simple structure presses and feels, and it is convenient to assemble, and manufacturing cost is lower to can avoid liquid and foreign matter to fall into metal shrapnel and insulator foot's inside and outside, have better waterproof and dust seal effect.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a touch switch with self-sealing waterproof performance comprises more than one independent switch piece, wherein each switch piece comprises a cover plate, a key, a metal elastic sheet and an insulating base which are arranged from top to bottom; wherein:

each insulating base is of a frame structure with an opening at the upper end, a functional elastic sheet is embedded on the inner wall of the bottom of each insulating base, two end parts of each functional elastic sheet extend to the outer side of one insulating base, and a first waterproof bulge which is connected end to end is arranged at the upper end part of each insulating base;

the bottom end part of each key is provided with a waterproof base matched with the insulating base, the lower end part of each waterproof base is provided with a second waterproof bulge which is connected end to end, the periphery of each second waterproof bulge is uniformly arrayed with a group of positioning bulges, and each group of positioning bulges is attached to the inner side of one first waterproof bulge during assembly; a contact is arranged on the inner side of each second waterproof bulge, and each contact is arranged right below one key;

each metal elastic sheet is arranged in the insulating base and arranged between the functional elastic sheet and the contact.

As a further elaboration of the above technical solution:

in the above technical scheme, each waterproof base is integrally formed with one of the key and the contact, and is made of an elastic material, and a buffer groove is formed in the periphery of the key at the upper end of each waterproof base.

In the above technical scheme, every the apron all include with the main part of waterproof base's adaptation, be equipped with in the main part with the through-hole of button adaptation, be equipped with a plurality of orientations on the lateral wall of main part the card that insulating base extends is protruding.

In the above technical scheme, a plurality of clamping grooves matched with the clamping protrusions one by one are arranged on the outer side wall of each insulating base.

In the above technical solution, each metal elastic sheet includes a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are overlapped up and down between one contact and one functional elastic sheet, the contour edge of the first elastic sheet extends to a position under the positioning protrusion, and the contour edge of the second elastic sheet extends to a position over the functional elastic sheet.

In the above technical scheme, each function shell fragment all includes third shell fragment and the fourth shell fragment that the level set up: third bulges matched with the second elastic sheet are uniformly arrayed at the upper end part of the third elastic sheet, one side wall of the third elastic sheet is abutted against one inner wall of the insulating base, and the side end part of the third elastic sheet penetrates through the insulating base and extends to one side of the outside of the insulating base; the upper end part of the fourth elastic sheet extends to the position right below the second elastic sheet, one side wall of the fourth elastic sheet abuts against the other inner wall of the insulating base, and the side end part of the fourth elastic sheet penetrates through the insulating base and extends to the other side of the outside of the insulating base.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model has simple structure, convenient assembly and lower production cost; the waterproof structure comprises an insulating base, a first waterproof bulge, an elastic key and a buffer groove, wherein the insulating base is provided with the first waterproof bulge, the lower end of the elastic key is provided with the integrally formed waterproof base, the periphery of the key is provided with the buffer groove, and the waterproof base is provided with a positioning bulge and a second waterproof bulge; the upper layer of metal elastic sheet and the lower layer of metal elastic sheet are arranged below the keys, so that the pressing hand feeling of a user can be obviously improved, misoperation can be avoided, and the safety is high; the structure that the function elastic sheet is combined by two independent elastic sheets can improve the sensitivity of the touch switch, and meanwhile, the stable switch function of the touch switch is ensured.

Drawings

FIG. 1 is a schematic diagram of an application structure of the present embodiment;

FIG. 2 is a schematic view showing the structure of a single switch in the present embodiment;

FIG. 3 is an exploded view of a single switch member in the present embodiment;

fig. 4 is an exploded view of the insulating base of the present embodiment.

FIG. 5 is a schematic structural diagram of a key of the present embodiment;

FIG. 6 is a schematic structural diagram of the cover plate in the present embodiment;

in the figure: 100. a switch member; 200. a cover plate material belt; 300. a functional elastic sheet material belt; 10. a cover plate; 11. a main body; 12. a through hole; 13. clamping convex; 20. pressing a key; 21. a waterproof base; 22. a second waterproof projection; 23. positioning the projection; 24. a contact; 25. a buffer tank; 30. a metal spring sheet; 31. a first spring plate; 32. a second elastic sheet; 40. an insulating base; 41. a functional elastic sheet; 42. a first waterproof projection; 43. a card slot; 44. a third elastic sheet; 441. a third protrusion; 45. and a fourth elastic sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-3, a tact switch with self-sealing and waterproof performance comprises more than one independent switch 100, wherein each switch 100 comprises a cover plate 10, a key 20, a metal elastic sheet 30 and an insulating base 40 which are arranged from top to bottom; wherein:

as shown in fig. 4, each insulating base 40 is a frame structure with an open upper end, a functional elastic sheet 41 is embedded on the inner wall of the bottom of the insulating base, two end portions of each functional elastic sheet 41 extend to the outer side of one insulating base 40, and a first waterproof protrusion 42 connected end to end is arranged at the upper end portion of each insulating base 40;

as shown in fig. 5, a waterproof base 21 adapted to the insulating base 40 is disposed at a bottom end portion of each key 20, a second waterproof protrusion 22 connected end to end is disposed at a lower end portion of each waterproof base 21, a set of positioning protrusions 23 is uniformly arrayed on the periphery of each second waterproof protrusion 22, and each set of positioning protrusions 23 abuts against an inner side of a first waterproof protrusion 42 during assembly; the inner side of each second waterproof bulge 22 is provided with a contact 24, and each contact 24 is arranged right below one key 20;

each metal spring 30 is mounted in an insulating base 40 and is disposed between the functional spring 41 and the contact 24.

Further, as shown in fig. 4, each waterproof base 21 is integrally formed with a key 20 and a contact 24, and is made of an elastic material, and a buffer slot 25 is disposed at the periphery of the key 20 at the upper end of each waterproof base 21.

In this embodiment, button 20 and waterproof base 21 form for soft silicon rubber material integrated into one piece, have better pliability and adsorptivity, waterproof base 21 can closely laminate and adsorb on insulator foot 40, the setting of dashpot 25 both provides the deformation space for moving down of button 20, can collect foreign matter and the liquid that falls from apron 10 simultaneously, avoids its inside and the outside that falls into metal shrapnel 30 and insulator foot 40, has better waterproof and dustproof effect.

Further, as shown in fig. 6, each cover plate 10 includes a main body 11 adapted to the waterproof base 21, through holes 12 adapted to the keys 20 are provided on the main body 11, and a plurality of locking protrusions 13 extending toward the insulating base 40 are provided on the side wall of the main body 10.

Further, a plurality of clamping grooves 43 which are matched with the clamping protrusions 13 one by one are formed in the outer side wall of each insulating base 40.

Further, as shown in fig. 3, each metal elastic sheet 30 includes a first elastic sheet 31 and a second elastic sheet 32, the first elastic sheet 31 and the second elastic sheet 32 are overlapped up and down between a contact 24 and a functional elastic sheet 41, the contour edge of the first elastic sheet 31 extends to a position right below a positioning protrusion 23, and the contour edge of the second elastic sheet 32 extends to a position right above the functional elastic sheet 41.

The utility model discloses in two-layer shell fragment about having set up in button 20 below, need apply the function shell fragment 41 that just can touch the below of relatively great pressing force on button 20 during the use, can obviously promote user's pressing down and feel, can avoid the maloperation simultaneously, the security is higher.

Further, as shown in fig. 6, each of the functional elastic pieces 41 includes a third elastic piece 44 and a fourth elastic piece 45 which are horizontally arranged: third bulges 441 matched with the second elastic sheet 32 are uniformly arrayed at the upper end part of the third elastic sheet 44, one side wall of the third elastic sheet 44 is abutted against one inner wall of the insulating base 40, and the side end part of the third elastic sheet passes through the insulating base 40 and extends to the outer side of the insulating base; the upper end of the fourth elastic sheet 45 extends to the right below the second elastic sheet 32, one side wall of the fourth elastic sheet abuts against the other inner wall of the insulating base 40, and the side end of the fourth elastic sheet passes through the insulating base 40 and extends to the other side of the outside of the insulating base.

As shown in fig. 6, in this embodiment, two elastic sheets arranged left and right are embedded in the insulating base 40, the first elastic sheet 31 pushes the second elastic sheet 32 to first touch the third protrusion 441 on the third elastic sheet 44 at the initial stage of pressing, and the second elastic sheet is completely contacted with the third elastic sheet 44 and the fourth elastic sheet 45 at the later stage of pressing, so that the contact switch has high sensitivity and stable connection and disconnection functions.

As shown in fig. 1, in the present embodiment, the third elastic sheet 44 and the fourth elastic sheet 45 are both stamped on the same functional elastic sheet material tape 300 by the stamping die, and can be synchronously assembled on the insulating base 40 during assembly, and the material tape is uniformly broken after the assembly is completed, so that the assembly efficiency is high, and the accuracy of the relative position of the two elastic sheets is high.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (6)

1. A touch switch with self-sealing waterproof performance comprises more than one independent switch piece, wherein each switch piece comprises a cover plate, a key, a metal elastic sheet and an insulating base which are arranged from top to bottom; the method is characterized in that:

each insulating base is of a frame structure with an opening at the upper end, functional elastic sheets are embedded on the inner wall of the bottom of each insulating base, two end parts of each functional elastic sheet extend to the outer side of one insulating base, and a first waterproof bulge which is connected end to end is arranged at the upper end part of each insulating base;

the bottom end part of each key is provided with a waterproof base matched with the insulating base, the lower end part of each waterproof base is provided with a second waterproof bulge which is connected end to end, the periphery of each second waterproof bulge is uniformly arrayed with a group of positioning bulges, and each group of positioning bulges is attached to the inner side of one first waterproof bulge during assembly; a contact is arranged on the inner side of each second waterproof bulge, and each contact is arranged right below one key;

each metal elastic sheet is arranged in the insulating base and arranged between the functional elastic sheet and the contact.

2. The tact switch with self-sealing and waterproof performance as claimed in claim 1, wherein each of the waterproof bases is integrally formed with one of the key and the contact and made of elastic material, and the upper end of each of the waterproof bases is provided with a buffer slot at the periphery of the key.

3. The tact switch with self-sealing and waterproof performances as claimed in claim 1, wherein each of the cover plates comprises a main body adapted to the waterproof base, the main body is provided with a through hole adapted to the key, and the sidewall of the main body is provided with a plurality of protrusions extending toward the insulating base.

4. The tact switch with self-sealing and waterproof performances as claimed in claim 3, wherein a plurality of slots adapted to said protrusions are provided on the outer sidewall of each said insulating base.

5. The tact switch with self-sealing and waterproof performances as claimed in claim 1, wherein each of the metal elastic pieces comprises a first elastic piece and a second elastic piece, the first elastic piece and the second elastic piece are overlapped up and down and disposed between one of the contacts and one of the functional elastic pieces, the contour edge of the first elastic piece extends to a position under the protrusion, and the contour edge of the second elastic piece extends to a position over the functional elastic piece.

6. The tact switch with self-sealing and waterproof performances according to claim 5, wherein each of said functional elastic pieces comprises a third elastic piece and a fourth elastic piece arranged horizontally: third bulges matched with the second elastic sheet are uniformly arrayed at the upper end part of the third elastic sheet, one side wall of the third elastic sheet is abutted against one inner wall of the insulating base, and the side end part of the third elastic sheet penetrates through the insulating base and extends to one side of the outside of the insulating base; the upper end part of the fourth elastic sheet extends to the position right below the second elastic sheet, one side wall of the fourth elastic sheet abuts against the other inner wall of the insulating base, and the side end part of the fourth elastic sheet penetrates through the insulating base and extends to the other side of the outside of the insulating base.

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