CN221176023U - Waterproof micro-switch and electronic key - Google Patents

Abstract

The present disclosure provides a waterproof micro switch and an electronic key. The waterproof micro switch comprises a base, a switch main body, an upper cover and a waterproof sleeve, wherein the waterproof sleeve is sleeved on the upper cover and the base, the pressing rod covers the inner cavity of the waterproof sleeve, the pressing rod is abutted with the inner wall of the top end of the waterproof sleeve, a plurality of glue dispensing grooves positioned at the same horizontal position are formed in the periphery wall of the base adjacent to the waterproof sleeve, round corner protrusions are arranged between two adjacent glue dispensing grooves, and each round corner protrusion is abutted with the inner wall of the waterproof sleeve. The waterproof sleeve is sleeved on the upper cover and the base, a plurality of glue dispensing grooves positioned at the same horizontal position are formed in the periphery wall of the base adjacent to the waterproof sleeve, and waterproof glue is filled into the glue dispensing grooves, so that gaps between the waterproof sleeve and the base are tightly plugged, the switch main body is completely in a sealed waterproof state, namely, the waterproof performance of the waterproof micro switch is improved, and the waterproof micro switch is suitable for work in a soaking state.

Description

Waterproof micro-switch and electronic key

Technical Field

The disclosure relates to the technical field of switches, and in particular relates to a waterproof micro switch and an electronic key.

Background

The micro switch is a contact mechanism for performing a switching operation with a predetermined stroke and a predetermined force, and is covered with a case, and the outside of the micro switch is provided with a driving lever.

In the prior art, a micro switch generally comprises a shell, a switch main body and a base, as shown in fig. 1, the switch main body 1 is arranged on the base 2, the shell 3 is covered and connected with the switch main body 1, the shell 3 is provided with an opening 3a, and a driving piece 11 of the switch main body 1 is movably arranged in the opening 3a in a penetrating way so as to realize the pressing starting of the switch main body 1; wherein, be equipped with waterproof cover 11a of silica gel on driving piece 11, utilize waterproof cover 11a of silica gel to wear to establish and the butt is in the inner wall of opening 3a to prevent moisture and dust entering shell 3.

Foretell prior art, when not pressing the driving piece, when not starting micro-gap switch promptly, the waterproof cover of silica gel of driving piece and open-ended inner wall butt can prevent moisture and dust entering shell well, but this technical scheme has following problem:

when the micro switch is applied to a soaking state, for example, the micro switch is applied to a mopping robot, as the driving piece is movably penetrated through the shell, when the micro switch is started, namely, the driving piece is pressed, a movable gap exists between the silica gel waterproof sleeve of the driving piece and the shell, water can enter the shell through the gap, so that the switch main body is damaged, the function of the micro switch is invalid, and therefore, the micro switch is limited in waterproof performance and cannot be suitable for work under the soaking state.

Disclosure of utility model

The aim of the present disclosure is to overcome the shortcomings in the prior art, and provide a waterproof micro switch and an electronic key which have better waterproof performance and can be suitable for working in a water-immersed state.

The aim of the disclosure is achieved by the following technical scheme:

The waterproof micro switch comprises a base, a switch main body, an upper cover and a waterproof sleeve, wherein the switch main body is connected with the base, and a pressing rod is arranged on the switch main body; the upper cover is covered and connected with the switch main body, and the pressing rod penetrates through the upper cover; the waterproof cover is sleeved with the parts connected to the upper cover and the base, the pressing rod covers the inner cavity of the waterproof cover, the pressing rod is abutted to the inner wall of the top end of the waterproof cover, a plurality of glue dispensing grooves positioned at the same horizontal position are formed in the periphery wall of the base adjacent to the waterproof cover, each glue dispensing groove is used for filling waterproof glue, round-corner protrusions are arranged between two adjacent glue dispensing grooves, and each round-corner protrusion is abutted to the inner wall of the waterproof cover.

In one embodiment, the waterproof sleeve comprises a fixed sleeve portion and an elastic pressing portion which are connected with each other, the fixed sleeve portion is provided with a sleeve groove, the elastic pressing portion is provided with a containing groove communicated with the sleeve groove, the fixed sleeve portion is sleeved with a portion connected with the upper cover and the base, the outer peripheral wall of the upper cover is abutted to the inner wall of the sleeve groove, the portion of the pressing rod penetrating out of the upper cover is located in the containing groove, and the bottom wall of the containing groove is abutted to the pressing rod.

In one embodiment, the base comprises a first connecting part, a dispensing part and a second connecting part which are sequentially connected, the switch main body is connected with the first connecting part, and the outer peripheral wall of the first connecting part is abutted with the inner wall of the sleeving groove; each corner of the dispensing part is provided with a fillet bulge, and a dispensing groove is formed between every two adjacent fillet bulges.

In one embodiment, the first connecting portion, the dispensing portion and the second connecting portion are integrally formed.

In one embodiment, the switch main body comprises a terminal structure and a pressing structure, the terminal structure comprises a terminal base, a conductive terminal piece and a button, the conductive terminal piece is encapsulated and molded in the terminal base, two sides of the terminal base are respectively connected with the base and the upper cover, the button is arranged on one side, away from the base, of the terminal base, and the button is electrically connected with the conductive terminal piece; the pressing structure comprises a sliding block and a pressing rod which are connected with each other, the sliding block is located right above the button, the upper cover is provided with a cover groove, and the sliding block is connected with the inner wall of the cover groove in a sliding mode. In one embodiment, the upper cover is provided with an opening communicated with the cover groove, the pressing rod penetrates through the opening, the upper cover is provided with an annular flange along the outer wall of the opening, the upper cover surrounds the annular flange to form a limiting groove, the pressing rod penetrates out of the opening, the pressing rod is sheathed with a resetting rubber sleeve, and the bottom end of the resetting rubber sleeve is respectively in limiting butt joint with the outer wall of the annular flange and the inner wall of the limiting groove.

In one embodiment, the base is formed with a clamping groove, one side of the terminal base, which is away from the pressing rod, is formed with a clamping flange, the clamping flange is clamped on the inner wall of the clamping groove, two sides of the clamping flange are formed with two clamping notches, two clamping blocks are arranged on the inner walls of two sides of the clamping groove, and the two clamping blocks are correspondingly connected with the inner walls of the two clamping notches.

In one embodiment, a clamping strip is arranged on one side, away from the base, of the terminal base, two limiting clamping strips are arranged on the inner wall of the cover groove in parallel, and two sides of the clamping strip are respectively in limiting butt joint with the two limiting clamping strips.

In one embodiment, a plurality of sliding strips are formed on the periphery of the sliding block, a plurality of sliding rails are arranged on the inner wall of the covering groove, the sliding strips are arranged in one-to-one correspondence with the sliding rails, and each sliding strip is in sliding butt joint with the corresponding sliding rail.

An electronic key comprising a waterproof micro-switch as described in any one of the embodiments above.

Compared with the prior art, the present disclosure includes, but is not limited to, the following advantages:

1. The waterproof sleeve is sleeved on the parts connected with the upper cover and the base, a plurality of glue dispensing grooves positioned at the same horizontal position are formed on the periphery wall of the base adjacent to the waterproof sleeve, and waterproof glue is filled into the glue dispensing grooves, so that gaps between the waterproof sleeve and the base are tightly plugged, the switch main body is completely in a sealed waterproof state, namely the waterproof performance of the waterproof micro switch is improved, and the waterproof micro switch is suitable for work in a water soaking state;

2. The base is equipped with the fillet arch between two adjacent point gum grooves, and each fillet arch all with waterproof jacket's inner wall butt, when gluing the inslot to each point and filling waterproof glue, owing to the bellied circumstances that glue overflow appears in the inslot of gluing of each point can be prevented betterly to a plurality of fillets, and then when having avoided waterproof micro-gap switch to assemble on the button, appear bonding in the problem of other parts.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a prior art micro-switch;

FIG. 2 is a schematic diagram of a waterproof micro switch in an embodiment;

FIG. 3 is an exploded view of the waterproof micro-switch shown in FIG. 2;

fig. 4 is another schematic structural view of the waterproof micro switch shown in fig. 2;

FIG. 5 is a cross-sectional view of the waterproof micro-switch of FIG. 4 taken along line A-A;

Fig. 6 is a schematic structural view of a waterproof jacket in the waterproof micro switch shown in fig. 2;

Fig. 7 is a schematic structural view of a terminal structure in the waterproof micro switch shown in fig. 2;

fig. 8 is a schematic connection diagram of the upper cover and the pressing structure in the waterproof micro switch shown in fig. 2.

Detailed Description

In order that the disclosure may be understood, a more complete description of the disclosure will be rendered by reference to the appended drawings. Preferred embodiments of the present disclosure are shown in the drawings. This disclosure may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In order to better understand the technical scheme and beneficial effects of the present disclosure, the following further details are described in conjunction with specific embodiments:

Referring to fig. 2 to 8, a waterproof micro switch 10 according to an embodiment of the disclosure includes a base 100, a switch body 200, an upper cover 300, and a waterproof jacket 400; the switch main body 200 is connected with the base 100, and the switch main body 200 is provided with a pressing rod 224; the upper cover 300 is covered and connected to the switch main body 200, and the pressing rod 224 is arranged through the upper cover 300; the waterproof jacket 400 is sleeved on the upper cover 300 and the base 100, so as to cover the pressing rod 224 in the inner cavity of the waterproof jacket 400, the pressing rod 224 is abutted against the inner wall of the top end of the waterproof jacket 400, a plurality of glue dispensing grooves 101 positioned at the same horizontal position are formed on the periphery wall of the base 100 adjacent to the waterproof jacket 400, each glue dispensing groove 101 is used for filling waterproof glue (not shown), a fillet protrusion 100a is arranged between two adjacent glue dispensing grooves 101 of the base 100, and each fillet protrusion 100a is abutted against the inner wall of the waterproof jacket 400.

In the present embodiment, the switch body 200 is connected to the base 100, and the upper cover 300 is covered with the switch body 200, and the pressing rod 224 of the switch body 200 is inserted into the upper cover 300; the waterproof jacket 400 is sleeved on the upper cover 300 and the base 100, so that the pressing rod 224 is covered in the inner cavity of the waterproof jacket 400, and the pressing rod 224 is abutted with the inner wall of the top end of the waterproof jacket 400, therefore, when the top end of the waterproof jacket 400 is pressed, force is applied to the pressing rod 224, and the switch main body 200 is turned on, so that the switch function is realized; it can be understood that, since the base 100 is formed with the plurality of glue dispensing grooves 101 located at the same horizontal position adjacent to the outer peripheral wall of the waterproof jacket 400, the gap between the waterproof jacket 400 and the base 100 is tightly sealed by filling the glue dispensing grooves 101 with the waterproof glue, so that the switch main body 200 is completely in a sealed waterproof state, that is, the waterproof performance of the waterproof micro switch 10 is improved, and the waterproof micro switch is suitable for working in a soaking state; it should be noted that, the base 100 is provided with the fillet protrusion 100a between two adjacent dispensing grooves 101, and each fillet protrusion 100a is abutted against the inner wall of the waterproof jacket 400, when the waterproof glue is filled into each dispensing groove 101, the plurality of fillet protrusions 100a can better prevent the situation of glue overflow in each dispensing groove 101 due to the arrangement of the plurality of fillet protrusions 100a, and further, the problem that the waterproof micro switch 10 is adhered to other components when assembled on a key is avoided.

In one embodiment, referring to fig. 3, 5 and 6, the waterproof jacket 400 includes a fixed jacket portion 410 and an elastic pressing portion 420 that are connected to each other, the fixed jacket portion 410 is formed with a jacket groove 4101, the elastic pressing portion 420 is formed with a receiving groove 4201 that communicates with the jacket groove 4101, the fixed jacket portion 410 is jacket-connected to the upper cover 300 and the base 100 such that an outer peripheral wall of the upper cover 300 abuts against an inner wall of the jacket groove 4101, a portion of the pressing rod 224 penetrating the upper cover 300 is located in the receiving groove 4201, and a bottom wall of the receiving groove 4201 abuts against the pressing rod 224. In the present embodiment, the fixed fitting portion 410 is formed with the fitting groove 4101, the elastic pressing portion 420 is formed with the receiving groove 4201, and the fixed fitting portion 410 is fitted to the portion connected to the upper cover 300 and the base 100 such that the outer peripheral wall of the upper cover 300 abuts against the inner wall of the fitting groove 4101, and at this time, the portion of the pressing lever 224 penetrating out of the upper cover 300 is located in the receiving groove 4201, and the bottom wall of the receiving groove 4201 abuts against the pressing lever 224, so that the bottom wall of the receiving groove 4201 is directly pressed to apply a force to the pressing lever 224, thereby turning on the switch main body 200 to realize the switching function.

In one embodiment, referring to fig. 3, the base 100 includes a first connection portion 110, a dispensing portion 120, and a second connection portion 130 that are sequentially connected, the switch main body 200 is connected to the first connection portion 110, and an outer peripheral wall of the first connection portion 110 is abutted to an inner wall of the sleeve groove 4101; each corner of the dispensing portion 120 is provided with a fillet protrusion 100a, and the dispensing slot 101 is formed between two adjacent fillet protrusions 100 a.

Further, referring to fig. 3, the first connecting portion 110, the dispensing portion 120, and the second connecting portion 130 are integrally formed. In this way, the structural strength of the base 100 is high.

In one embodiment, referring to fig. 3 to 5, the switch main body 200 includes a terminal structure 210 and a pressing structure 220, the terminal structure 210 includes a terminal base 212, a conductive terminal piece (not shown) and a button 214, the conductive terminal piece is encapsulated in the terminal base 212, two sides of the terminal base 212 are respectively connected with the base 100 and the upper cover 300, the button 214 is disposed on a side of the terminal base 212 facing away from the base 100, and the button 214 is electrically connected with the conductive terminal piece; the pressing structure 220 includes a slider 222 and a pressing rod 224 that are connected to each other, the slider 222 is located right above the button 214, the upper cover 300 is formed with a covering groove 301, and the slider 222 is slidably connected to an inner wall of the covering groove 301. In the present embodiment, by pressing the pressing lever 224, the slider 222 is slid along the inner wall of the housing groove 301, and then the slider 222 is pressed against the button 214, thereby conducting the conductive terminal member, and realizing the switching function.

In one embodiment, referring to fig. 3 to 5, the upper cover 300 is provided with an opening 302 that is in communication with the covering groove 301, the pressing rod 224 is disposed through the opening 302, the upper cover 300 is provided with an annular flange 310 along an outer wall of the opening 302, the upper cover 300 surrounds the annular flange 310 to form a limiting groove 303, a portion of the pressing rod 224 that passes through the opening 302 is sleeved with a reset rubber sleeve 224a, and bottom ends of the reset rubber sleeve 224a are respectively in limiting abutting connection with an outer wall of the annular flange 310 and an inner wall of the limiting groove 303. In this embodiment, the outer wall of the annular flange 310 and the inner wall of the limiting groove 303 are utilized to limit and fix the reset rubber sleeve 224a, and the reset rubber sleeve 224a is sleeved on the pressing rod 224, it can be understood that after the pressing of the button 214 is completed, the pressing rod 224 and the sliding block 222 will be restored to the original position by removing the force applied to the pressing rod 224 and under the elastic reset action of the reset rubber sleeve 224 a.

In one embodiment, referring to fig. 3 and 7, the base 100 is formed with a clamping groove 102, a clamping flange 212a is formed on a side of the terminal base 212 facing away from the pressing rod 224, the clamping flange 212a is clamped to an inner wall of the clamping groove 102, two buckling notches 2121 are formed on two sides of the clamping flange 212a, two buckling blocks 100a are disposed on inner walls of two sides of the clamping groove 102, and the two buckling blocks 100a are correspondingly connected with inner walls of the two buckling notches 2121. In the present embodiment, the clamping flange 212a is clamped with the inner wall of the clamping groove 102, and the two clamping blocks 100a are correspondingly connected with the inner walls of the two clamping gaps 2121, so that the connection between the clamping flange 212a and the base 100 is firm, and the connection strength between the terminal base 212 and the base 100 is improved.

In one embodiment, referring to fig. 3 and 8, a clamping bar 212b is disposed on a side of the terminal base 212 facing away from the base 100, two limiting clamping bars 320 are disposed on an inner wall of the covering groove 301 in parallel, and two sides of the clamping bar 212b are respectively in limiting abutment with the two limiting clamping bars 320. In this way, the two sides of the clamping bar 212b are respectively in limited contact with the two limiting clamping bars 320, so that the terminal base 212 is firmly clamped on the upper cover 300.

In one embodiment, referring to fig. 8, a plurality of sliding strips 222a are formed on the periphery of the sliding block 222, a plurality of sliding rails 330 are disposed on the inner wall of the covering slot 301, the sliding strips 222a are disposed in one-to-one correspondence with the sliding rails 330, and each sliding strip 222a is slidably abutted against the corresponding sliding rail 330. In the present embodiment, each sliding bar 222a is slidably abutted against the corresponding sliding rail 330, so that the sliding block 222 is slidably connected to the inner wall of the housing groove 301.

The disclosure also provides an electronic key comprising the waterproof micro switch according to any one of the embodiments.

Compared with the prior art, the present disclosure includes, but is not limited to, the following advantages:

1. The waterproof jacket 400 is sleeved on the parts connected with the upper cover 300 and the base 100, a plurality of glue dispensing grooves 101 positioned at the same horizontal position are formed on the periphery wall of the base 100 adjacent to the waterproof jacket 400, and waterproof glue is filled into each glue dispensing groove 101, so that gaps between the waterproof jacket 400 and the base 100 are tightly blocked, the switch main body 200 is completely in a sealed waterproof state, namely the waterproof performance of the waterproof micro switch 10 is improved, and the waterproof micro switch is suitable for work in a water soaking state;

2. The base 100 is equipped with the fillet arch 100a between two adjacent point gum grooves 101, and each fillet arch 100a all with waterproof jacket 400's inner wall butt, when gluing groove 101 intussuseption to each point, because the setting of a plurality of fillet archs 100a can prevent better that glue overflow's condition from appearing in each point gum groove 101, and then avoided waterproof micro-gap switch 10 to assemble when on the button, appear bonding in other parts's problem.

The foregoing examples represent only a few embodiments of the present disclosure, which are described in more detail and detail, but are not to be construed as limiting the scope of the disclosure. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the disclosure, which are within the scope of the disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the following claims.

Claims (10)

1. A waterproof micro-switch, comprising:

A base;

The switch main body is connected with the base and is provided with a pressing rod;

The upper cover is covered and connected with the switch main body, and the pressing rod penetrates through the upper cover;

Waterproof cover, waterproof cover establish connect in the upper cover with the part of base, with press the pole cover to locate the inner chamber of waterproof cover, press the pole with the inner wall butt on the top of waterproof cover, the base is adjacent the periphery wall of waterproof cover is formed with a plurality of glue dispensing grooves that are located same horizontal position, each glue dispensing groove is used for filling waterproof glue, the base is adjacent two be equipped with the fillet arch between the glue dispensing groove, each the fillet arch all with the inner wall butt of waterproof cover.

2. The waterproof micro switch according to claim 1, wherein the waterproof cover comprises a fixed cover portion and an elastic pressing portion which are connected with each other, the fixed cover portion is provided with a cover groove, the elastic pressing portion is provided with a containing groove communicated with the cover groove, the fixed cover portion is sleeved with a portion connected to the upper cover and the base, so that the outer peripheral wall of the upper cover is abutted to the inner wall of the cover groove, the portion of the pressing rod penetrating out of the upper cover is located in the containing groove, and the bottom wall of the containing groove is abutted to the pressing rod.

3. The waterproof micro switch according to claim 2, wherein the base comprises a first connecting part, a dispensing part and a second connecting part which are sequentially connected, the switch main body is connected with the first connecting part, and the outer peripheral wall of the first connecting part is abutted with the inner wall of the sleeving groove; each corner of the dispensing part is provided with a fillet bulge, and a dispensing groove is formed between every two adjacent fillet bulges.

4. The waterproof micro-switch according to claim 3, wherein the first connecting portion, the dispensing portion and the second connecting portion are integrally formed.

5. The waterproof micro switch according to claim 1, wherein the switch main body comprises a terminal structure and a pressing structure, the terminal structure comprises a terminal base, a conductive terminal piece and a button, the conductive terminal piece is encapsulated in the terminal base, two sides of the terminal base are respectively connected with the base and the upper cover, the button is arranged on one side, away from the base, of the terminal base, and the button is electrically connected with the conductive terminal piece; the pressing structure comprises a sliding block and a pressing rod which are connected with each other, the sliding block is located right above the button, the upper cover is provided with a cover groove, and the sliding block is connected with the inner wall of the cover groove in a sliding mode.

6. The waterproof micro switch according to claim 5, wherein the upper cover is provided with an opening communicated with the cover groove, the pressing rod penetrates through the opening, the upper cover is provided with an annular flange along the outer wall of the opening, the upper cover surrounds the annular flange to form a limit groove, the part of the pressing rod penetrating out of the opening is sleeved with a reset rubber sleeve, and the bottom end of the reset rubber sleeve is respectively in limiting butt joint with the outer wall of the annular flange and the inner wall of the limit groove.

7. The waterproof micro switch according to claim 5, wherein the base is formed with a clamping groove, a clamping flange is formed on one side of the terminal base, which is away from the pressing rod, the clamping flange is clamped on the inner wall of the clamping groove, two buckling notches are formed on two sides of the clamping flange, two buckling blocks are arranged on two side inner walls of the clamping groove, and the two buckling blocks are correspondingly connected with the inner walls of the two buckling notches.

8. The waterproof micro switch according to claim 5, wherein a clamping strip is arranged on one side of the terminal base, which is away from the base, two limiting clamping strips are arranged on the inner wall of the covering groove in parallel, and two sides of the clamping strip are respectively in limiting abutting connection with the two limiting clamping strips.

9. The waterproof micro switch according to claim 5, wherein a plurality of sliding strips are formed on the periphery of the sliding block, a plurality of sliding rails are arranged on the inner wall of the covering groove, the sliding strips are arranged in one-to-one correspondence with the sliding rails, and each sliding strip is in sliding abutting connection with the corresponding sliding rail.

10. An electronic key comprising a waterproof micro-switch as claimed in any one of claims 1 to 9.