CN210167292U - Waterproof dustproof braid structure switch - Google Patents
Waterproof dustproof braid structure switch Download PDFInfo
- Publication number
- CN210167292U CN210167292U CN201921437290.0U CN201921437290U CN210167292U CN 210167292 U CN210167292 U CN 210167292U CN 201921437290 U CN201921437290 U CN 201921437290U CN 210167292 U CN210167292 U CN 210167292U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- terminal
- hole
- base
- waterproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000741 silica gel Substances 0.000 claims abstract description 20
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 20
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Push-Button Switches (AREA)
Abstract
A waterproof and dustproof braid structure switch comprises a cover plate, a button, a reed, a base and a clamping piece terminal, wherein the cover plate is provided with a middle through hole, a cover plate step positioned on the upper end surface of the cover plate and a cover plate step through hole, and the diameter of the cover plate step through hole is smaller than that of the middle through hole; the base up end is equipped with the holding die cavity that the up end formed down sunken, be equipped with PI pad pasting, intracavity step in the holding die cavity, be located the waterproof silica gel of PI pad pasting top, intracavity step width is less than the diameter of PI pad pasting, the top surface of PI pad pasting laminating intracavity step, PI pad pasting, waterproof silica gel diameter all are greater than the middle through-hole of apron. The utility model discloses beneficial effect: the inner components achieve the waterproof and dustproof effects through sealing treatment; the effect of reducing noise is achieved by arranging waterproof silica gel and attaching a PI film; the connection between the clamping piece terminal and the base is more stable; PIN sole portion sets up to C type structure and makes the product paste more firm on the paper tape.
Description
Technical Field
The utility model relates to an electrical switch field, especially a waterproof dustproof braid structure switch.
Background
The tact switch is also called a sensitive switch, when the tact switch is used, the switch is closed and switched on by applying pressure to the switch operation direction under the condition of meeting the operation force, and when the pressure is relieved, the switch is switched off, and the internal structure of the tact switch is switched on and off by the stress change of the metal elastic sheet. The tact switch has advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like, such as: digital products, remote controllers, communication products, household appliances and the like.
Because the button on the apron of dabbing switch needs smooth and easy activity, has the clearance between the through-hole in the middle of the apron and the button, and switch module inner space and external environment intercommunication cause the product when harsh environment such as humidity, micronic dust are many uses, switch module probably contacts with aqueous vapor or dust in the air, leads to the short circuit or inefficacy, and the life and the security of product do not obtain effectual guarantee.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above disadvantages of the prior art, the present invention provides a waterproof and dustproof braid structure switch.
The utility model provides a technical scheme that its technical problem adopted is: a waterproof and dustproof braid structure switch comprises a cover plate, a button, a reed, a base and a clamping piece terminal, wherein the cover plate is provided with a middle through hole, a cover plate step positioned on the upper end surface of the cover plate and a cover plate step through hole, and the diameter of the cover plate step through hole is smaller than that of the middle through hole;
the upper end face of the base is provided with a containing cavity with an upper end face recessed downwards, a PI film, an inner cavity step and waterproof silica gel positioned above the PI film are arranged in the containing cavity, the width of the inner cavity step is smaller than the diameter of the PI film, the PI film is attached to the top face of the inner cavity step, the diameters of the PI film and the waterproof silica gel are larger than a middle through hole of the cover plate, and the cover plate is connected through a positioning column arranged on the upper end face of the base and penetrating through a positioning through hole formed in the cover plate;
the button comprises a base, a pressing part extending upwards from the middle of the base and a contact positioned at the lower end of the base, the button is positioned in the accommodating cavity and positioned on the waterproof silica gel, the upper end of the pressing part penetrates through a step through hole of the cover plate, the base is positioned in the step of the cover plate, and the cover plate is buckled between the cover plate and the base;
the clamping piece terminal is provided with a first terminal, a first round through hole and a second terminal, wherein the first round through hole and the second terminal are located at the top of the first terminal, the second terminal is located at the top of the second terminal, the top of the clamping piece terminal is located in an accommodating cavity of the base, and the bottom of the base wraps the top of the clamping piece terminal.
As a further improvement of the utility model: the first terminal is provided with a middle bubble point positioned in the accommodating cavity, the second terminal is provided with two side bubble points positioned at two sides of the middle bubble point, and the first terminal and the second terminal are not in contact with each other.
As a further improvement of the utility model: the reed is of a semi-arc structure and is arranged above the bubble points on two sides of the second terminal in the accommodating cavity.
As a further improvement of the utility model: the base up end is equipped with 2 at least reference columns, the apron is equipped with the positioning hole with the same quantity of reference column, positioning hole is the same with the reference column diameter, the reference column penetrates positioning hole.
As a further improvement of the utility model: the card piece terminal is provided with a PIN foot of a 90-degree right-angled structure, and the bottom of the PIN foot is of a C-shaped structure.
Compared with the prior art, the beneficial effects of the utility model are that: the inner components achieve the waterproof and dustproof effects through sealing treatment; the effect of reducing noise is achieved by arranging waterproof silica gel and attaching a PI film; the connection between the clamping piece terminal and the base is more stable through the design of the through hole on the clamping piece terminal; set up to C type structure through PIN sole portion and make the product pack back more firm on the paper tape.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the cover plate structure of the present invention.
Fig. 4 is a schematic view of the terminal structure of the fastener of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings, in which:
referring to fig. 1 to 4, a waterproof and dustproof braid structure switch includes a cover plate 11, a button 21, a reed 34, a base 31, and a clip terminal 41, where the cover plate 11 has a middle through hole 14, a cover plate step 12 located on an upper end surface of the cover plate, and a cover plate step through hole 13, and a diameter of the cover plate step through hole 13 is smaller than a diameter of the middle through hole 14.
Referring to fig. 2, the upper end surface of the base is provided with an accommodating cavity 35 formed by sinking an upper end surface downwards, a PI pad pasting 33, an inner cavity step 37 and a waterproof silica gel 32 located above the PI pad pasting are arranged in the accommodating cavity, the width of the inner cavity step 37 is smaller than the diameter of the PI pad pasting 33, the PI pad pasting 33 is attached to the top surface of the inner cavity step 37, the diameters of the PI pad pasting 33 and the waterproof silica gel 32 are both larger than the middle through hole 14 of the cover plate, and the cover plate 11 is connected through a positioning column 36 arranged on the upper end surface of the base 31 and penetrating through a positioning through hole 15 arranged on the cover plate.
Since the accommodating cavity 35 is hollow, a metal contact assembly is arranged below the step 37 in the cavity. When the metal contact component contacts moisture and dust, the metal contact component is easy to short circuit or lose efficacy, so the PI film 33 and the waterproof silica gel 32 are arranged to isolate the space above and below the step 37 in the cavity. The diameter of the PI film 33 is larger than the width of the step 37 in the cavity and the middle through hole 14 of the cover plate, the bottom surface of the PI film 33 is sticky, the bottom surface of the PI film 33 is attached to the top surface of the step 37 in the cavity, and sealing, water-proof and dust-proof effects are achieved. The waterproof silica gel 32 is positioned above the PI film 33 and mainly used for further preventing water from passing through and permeating below the step 37 in the cavity, and when the PI film 33 is damaged or fails in viscosity after working for a long time, the waterproof silica gel 32 can also play an isolation role; in addition, because PI pad pasting 33 and waterproof silica gel 32 have the compliance, the reed 34 of PI pad pasting 33 below is down extruded to the button 21 atress above waterproof silica gel 32, and the reed 34 takes place to warp and the reed produces vibrations and noise when recovering after the pressure disappears, PI pad pasting 33 and waterproof silica gel 32 can cushion the reed 34 vibrations, noise reduction.
The button 21 comprises a base 23, a pressing portion 22 extending upwards from the middle of the base and a contact 24 located at the lower end of the base, the button 21 is located in an accommodating cavity 35 and located on waterproof silica gel 32, and the upper end of the pressing portion 22 penetrates out of a step through hole 13 of the cover plate.
The diameter of the step through hole 13 of the cover plate is smaller than that of the middle through hole 14, the upper end of the pressing part 22 penetrates out of the step through hole 13 of the cover plate, and the diameter of the base 23 is larger than that of the step through hole 13, namely, the cover plate 11 is buckled with the button 21, the moving direction and the track of the button 21 are limited, and the button 21 is prevented from falling off.
Referring to fig. 2 and fig. 3, at least 2 positioning pillars 36 are disposed on the upper end surface of the base, the cover plate 11 has positioning through holes 15 with the same number as the positioning pillars 36, the diameters of the positioning through holes 15 and the positioning pillars 36 are the same, and the positioning pillars 36 penetrate through the positioning through holes 15. Through the same reference column 36 of diameter is connected with positioning hole 15, makes apron 11 firmly assembles on base 31, in addition the utility model discloses rivet the reference column 36 of base with the mechanical equipment heat in the production process, reduce space between apron 11 and the base 31 improves the leakproofness, makes holding die cavity 35 reach waterproof and dustproof effect further.
Referring to fig. 4, the card member terminal 41 has a first terminal 42, a first circular through hole 44 at the top of the first terminal, a second terminal 43, and a second circular through hole 45 at the top of the second terminal. The top of the card member terminal 41 is located in the accommodating cavity 35 of the base 31, and the bottom of the base 31 covers the top of the card member terminal 41. Because first, the terminal is equipped with circular through-hole the utility model discloses the production base 31 in-process of moulding plastics, the circular through-hole of first circular through-hole 44 and second 45 is passed to fused plastic material. After the completion of moulding plastics, the plastic solidification who passes circular through-hole, base 31 and fastener terminal 41 seal and are connected, unable separation, make fastener terminal 41 is connected more firmly with base 31, uses the utility model discloses it is difficult not hard up to cut fastener terminal 41 during the product.
The card piece terminal 41 is provided with a PIN foot 48 with a 90-degree right-angled structure, and the bottom of the PIN foot 48 is of a C-shaped structure. Because the utility model discloses product production is accomplished the back handle PIN foot 48 is pasted and is packed on the paper tape, through the setting of PIN sole portion C type structure for the product is pasted the area on the wrapping paper tape bigger, and the adhesion is stronger, and is more firm.
The first terminal 42 is provided with a middle bubble point 46 positioned in the accommodating cavity, the second terminal 43 is provided with two side bubble points 47 positioned at two sides of the middle bubble point, and the first terminal 42 and the second terminal 43 are not contacted with each other. The spring 34 is a semi-arc structure and is disposed above the bubble points 47 on both sides of the second terminal 43 in the accommodating cavity 35. Before the reed 34 is pressed by force, the reed 34 is not contacted with the middle bubble point 46 and the two side bubble points 47. The reed 34 deforms after being pressed by a downward force, the middle part of the reed 34 is recessed downwards, two sides of the reed 34 contact the two bubble points 47, the recessed part contacts the middle bubble point 46, the two bubble points 47 are communicated with the middle bubble point 46, and the first terminal 42 is communicated with the second terminal 43 to form a passage.
The utility model discloses a theory of operation: the button 21 is provided with a pressing part 22 and a contact 24, when the pressing part 22 is pressed down, the contact 24 presses down the spring 34, so that the spring 34 deforms and then contacts the middle bubble point 46 and the two bubble points 47. The reed 34, the middle bubble point 46 and the two bubble points 47 are all made of metal materials, so that the first terminal 42 and the second terminal 43 are conducted to form a passage when in contact, and the switch is completed. The waterproof silica gel 32 and the PI film 33 are arranged, so that moisture and dust are prevented from entering the contact area of the reed 34 to cause short circuit and failure.
In the description of the present invention, it should be understood that the terms "upper end surface", "lower end surface", "top", "bottom", "left", "right", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and therefore, cannot be understood as a limitation to the practical use direction of the present invention.
In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides a waterproof dustproof braid structure switch, includes apron, button, reed, base, fastener terminal, its characterized in that:
the cover plate is provided with a middle through hole, a cover plate step positioned on the upper end surface of the cover plate and a cover plate step through hole, and the diameter of the cover plate step through hole is smaller than that of the middle through hole;
the upper end face of the base is provided with a containing cavity with an upper end face recessed downwards, a PI film, an inner cavity step and waterproof silica gel positioned above the PI film are arranged in the containing cavity, the width of the inner cavity step is smaller than the diameter of the PI film, the PI film is attached to the top face of the inner cavity step, the diameters of the PI film and the waterproof silica gel are larger than a middle through hole of the cover plate, and the cover plate is connected through a positioning column arranged on the upper end face of the base and penetrating through a positioning through hole formed in the cover plate;
the button comprises a base, a pressing part extending upwards from the middle of the base and a contact positioned at the lower end of the base, the button is positioned in the accommodating cavity and positioned on the waterproof silica gel, the upper end of the pressing part penetrates through a step through hole of the cover plate, the base is positioned in the step of the cover plate, and the cover plate is buckled between the cover plate and the base;
the clamping piece terminal is provided with a first terminal, a first round through hole and a second terminal, wherein the first round through hole and the second terminal are located at the top of the first terminal, the second terminal is located at the top of the second terminal, the top of the clamping piece terminal is located in an accommodating cavity of the base, and the bottom of the base wraps the top of the clamping piece terminal.
2. The waterproof and dustproof braid structure switch of claim 1, wherein: the first terminal is provided with a middle bubble point positioned in the accommodating cavity, the second terminal is provided with two side bubble points positioned at two sides of the middle bubble point, and the first terminal and the second terminal are not in contact with each other.
3. The waterproof and dustproof braid structure switch of claim 1, wherein: the reed is of a semi-arc structure and is arranged above the bubble points on two sides of the second terminal in the accommodating cavity.
4. The waterproof and dustproof braid structure switch of claim 1, wherein: the base up end is equipped with 2 at least reference columns, the apron is equipped with the positioning hole with the same quantity of reference column, positioning hole is the same with the reference column diameter, the reference column penetrates positioning hole.
5. The waterproof and dustproof braid structure switch of claim 1, wherein: the card piece terminal is provided with a PIN foot of a 90-degree right-angled structure, and the bottom of the PIN foot is of a C-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437290.0U CN210167292U (en) | 2019-08-29 | 2019-08-29 | Waterproof dustproof braid structure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437290.0U CN210167292U (en) | 2019-08-29 | 2019-08-29 | Waterproof dustproof braid structure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210167292U true CN210167292U (en) | 2020-03-20 |
Family
ID=69796174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921437290.0U Expired - Fee Related CN210167292U (en) | 2019-08-29 | 2019-08-29 | Waterproof dustproof braid structure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210167292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241276A (en) * | 2021-05-11 | 2021-08-10 | 温州瀚精电子有限公司 | Waterproof touch switch |
-
2019
- 2019-08-29 CN CN201921437290.0U patent/CN210167292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241276A (en) * | 2021-05-11 | 2021-08-10 | 温州瀚精电子有限公司 | Waterproof touch switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 |