CN215007996U - SMD silica gel button for electronic equipment - Google Patents

Abstract

The utility model discloses a SMD silica gel button for electronic equipment belongs to the silica gel button field. The utility model discloses a bottom plate, bottom plate upper surface fixed mounting PCB board and silica gel mounting panel respectively, fixed surface connects the silica gel protection casing on the silica gel mounting panel, fixed surface is connected with a plurality of silica gel key caps on the silica gel protection casing, fixed surface installs a plurality of PCB board contacts on the PCB board, fixed surface installs the spring beam on the PCB board contact, fixed surface installs button contact all around on the spring beam, fixed surface is connected with the clamp plate on the spring beam, the inside double-phase is to fixed surface is connected with the silica gel limiting plate of silica gel key cap, the dead slot has been seted up to silica gel key cap inside, fixed surface installs a plurality of bracing pieces on the PCB board. The utility model discloses a set up silica gel mounting panel, silica gel protection casing and silica gel key cap, make this device can wrap up completely such as PCB board and spring beam when using, prevent that external dust from falling into parts such as PCB board, make this device can have better dustproof effect, and is more durable.

Description

SMD silica gel button for electronic equipment

Technical Field

The utility model belongs to silica gel button field especially relates to a SMD silica gel button for electronic equipment.

Background

The silica gel key is a key product made of silica gel as a raw material, belongs to a product category of silica gel products, and has the characteristics of excellent heat resistance, cold resistance, environmental resistance, electric insulation, fatigue resistance and the like.

The existing patch type silica gel key is easy to cause the condition that dust falls into a PCB from a gap when in use, so that equipment is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SMD silica gel button for electronic equipment solves the not good problem of prior art dustproof performance.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a SMD silica gel button for electronic equipment, comprising a bottom plate, wherein the upper surface of the bottom plate is respectively and fixedly provided with a PCB (printed circuit board) and a silica gel mounting plate, the PCB and the silica gel mounting plate are mounted through the bottom plate, the upper surface of the silica gel mounting plate is fixedly connected with a silica gel protective cover which is used for protecting the PCB and preventing dust from falling in, the upper surface of the silica gel protective cover is fixedly connected with a plurality of silica gel keycaps for protecting components in the button, the upper surface of the PCB is fixedly provided with a plurality of PCB contacts, the upper surface of the PCB contacts is fixedly provided with a spring rod, the peripheral side surface of the spring rod is fixedly provided with a button contact, the button contact is contacted with the PCB contacts by pressing the spring rod to transmit electric signals, the upper surface of the spring rod is fixedly connected with a pressing plate which is used for supporting the silica gel keycaps by setting the pressing plate to improve the button hand feeling, the two phases inside the silica gel keycaps are fixedly connected with silica gel limiting plates, the distance that the restriction clamp plate pressed, the dead slot has been seted up to silica gel key cap inside, fixed surface installs a plurality of bracing pieces on the PCB board, props up the silica gel protection casing through the bracing piece.

Preferably, silica gel mounting panel size and bottom plate size phase-match, silica gel mounting panel internal surface and the side of the PCB board week are closely laminated, make the silica gel mounting panel will wrap up the PCB board.

Preferably, silica gel protection casing and PCB board size phase-match, a plurality of contact through-holes have been seted up on silica gel protection casing surface, contact through-hole size and button contact size phase-match and sliding fit protect the PCB board through the silica gel protection casing, prevent that the PCB board from falling the ash.

Preferably, the pressing plate upper surface is laminated with the inside upper surface of silica gel key cap mutually, the pressing plate size matches with the dead slot size, props up the silica gel key cap through the pressing plate.

Preferably, a spring rod through hole has been seted up on a surface of silica gel limiting plate, spring rod through hole size and spring rod size phase-match make the spring rod can follow the silica gel limiting plate and stretch out and draw back.

Preferably, the stroke of the spring rod is adapted to the height of the empty groove, so that the spring rod is pressed down and then the pressing plate is attached to the upper surface of the silica gel limiting plate.

Preferably, the size of the supporting rod is adapted to the size of the silica gel protective cover, so that each supporting rod supports the silica gel protective cover.

The utility model discloses following beneficial effect has:

1. the utility model discloses through setting up silica gel mounting panel, silica gel protection casing and silica gel key cap when using, make this device wrap up completely such as PCB board and spring beam when using, prevent that external dust from falling into parts such as PCB board, make this device can have better dustproof effect, and is more durable.

2. The utility model discloses through setting up clamp plate, spring beam and silica gel limiting plate when using, make this device press down the clamp plate promptly and extrude the spring beam after pressing the silica gel key cap when using, make this device can have better feeling when using, can not take place the condition that the silica gel key cap sinks, use to experience better.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a patch type silica gel key for electronic equipment according to the present invention;

fig. 2 is a top view of a surface mount type silicone key for electronic equipment according to the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a front view of a surface mount type silicone key for electronic equipment of the present invention;

fig. 5 is an enlarged view of fig. 3 at a.

In the drawings, the components represented by the respective reference numerals are listed below: 1. a base plate; 2. a PCB board; 3. mounting a silica gel plate; 4. a silica gel protective cover; 5. a silica gel keycap; 6. a PCB board contact; 7. a key contact; 8. a contact through hole; 9. a spring lever; 10. pressing a plate; 11. a silica gel limiting plate; 12. a spring rod through hole; 13. an empty groove; 14. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-5, the present invention relates to a surface mount type silicone key for electronic equipment, comprising a bottom plate 1, wherein a PCB 2 and a silicone mounting plate 3 are respectively and fixedly mounted on the upper surface of the bottom plate 1, the PCB 2 and the silicone mounting plate 3 are mounted on the bottom plate 1, a silicone protective cover 4 is fixedly connected on the upper surface of the silicone mounting plate 3, the PCB 2 is protected from dust by the silicone protective cover 4, a plurality of silicone key caps 5 are fixedly connected on the upper surface of the silicone protective cover 4, components in the key are protected, a plurality of PCB contacts 6 are fixedly mounted on the upper surface of the PCB 2, a spring rod 9 is fixedly mounted on the upper surface of the PCB contacts 6, a key contact 7 is fixedly mounted on the peripheral surface of the spring rod 9, the key contact 7 is contacted with the PCB contacts 6 by pressing the spring rod 9 to transmit electric signals, a pressing plate 10 is fixedly connected on the upper surface of the spring rod 9, the silicone key cap 5 is supported by the pressing plate 10, improve the button and feel, the inside double-phase silica gel limiting plate 11 to surface fixedly connected with of silica gel key cap 5, the distance that restriction clamp plate 10 pressed, empty groove 13 has been seted up to silica gel key cap 5 is inside, and 2 last fixed surface of PCB board installs a plurality of bracing pieces 14, props up silica gel protection casing 4 through bracing piece 14.

3 size and the 1 size phase-match of bottom plate of silica gel mounting panel, 3 internal surfaces of silica gel mounting panel and 2 week side of PCB board closely laminate, make silica gel mounting panel 3 will wrap up PCB board 2.

Silica gel protection casing 4 and 2 size phase-matches of PCB board, a plurality of contact through-holes 8 have been seted up on 4 surfaces of silica gel protection casing, and 8 sizes of contact through-holes and 7 size phase-matches of button contact and sliding fit protect PCB board 2 through silica gel protection casing 4, prevent that PCB board 2 from falling the ash.

A spring rod through hole 12 is formed in one surface of the silica gel limiting plate 11, and the size of the spring rod through hole 12 is matched with that of the spring rod 9, so that the spring rod 9 can stretch along the silica gel limiting plate 11.

The stroke of the spring rod 9 is adapted to the height of the empty groove 13, so that the pressing plate 10 is attached to the upper surface of the silica gel limiting plate 11 after the spring rod 9 is pressed down.

The size of the supporting rods 14 is adapted to the size of the silica gel protective cover 4, so that each supporting rod 14 supports the silica gel protective cover 4.

The upper surface of the pressing plate 10 is attached to the inner upper surface of the silica gel keycap 5, the size of the pressing plate 10 is matched with the size of the empty groove 13, and the silica gel keycap 5 is supported by the pressing plate 10.

One specific application of this embodiment is: install PCB board 2 on bottom plate 1 earlier during the use, install silica gel mounting panel 3 on bottom plate 1 again and wrap up PCB board 2 is complete, make each spring beam 9 and button contact 7 correspond with each PCB board contact 6, press silica gel key cap 5 when using, silica gel key cap 5 pushes down clamp plate 10, clamp plate 10 compresses down spring beam 9, make clamp plate 10 press to silica gel limiting plate 11, 7 laminating contact through-holes 8 of button contact, spring beam 9 resets after the pine hand makes clamp plate 10 push up back normal position with silica gel key cap 5.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The utility model provides a SMD silica gel button for electronic equipment, includes bottom plate (1), its characterized in that:

the upper surface of the bottom plate (1) is respectively and fixedly provided with a PCB (2) and a silica gel mounting plate (3), the upper surface of the silica gel mounting plate (3) is fixedly connected with a silica gel protective cover (4), the upper surface of the silica gel protective cover (4) is fixedly connected with a plurality of silica gel keycaps (5), a plurality of PCB contacts (6) are fixedly arranged on the upper surface of the PCB (2), the upper surface of the PCB contact (6) is fixedly provided with a spring rod (9), the side surface of the spring rod (9) is fixedly provided with a key contact (7), the upper surface of the spring rod (9) is fixedly connected with a pressing plate (10), two opposite surfaces inside the silica gel keycap (5) are fixedly connected with silica gel limit plates (11), empty slot (13) have been seted up to silica gel key cap (5) inside, fixed surface installs a plurality of bracing pieces (14) on PCB board (2).

2. The patch type silicone key according to claim 1, wherein the size of the silicone mounting plate (3) matches the size of the base plate (1), and the inner surface of the silicone mounting plate (3) is closely attached to the peripheral side of the PCB (2).

3. The patch type silicone key according to claim 2, wherein the silicone protective cover (4) is matched with the PCB (2) in size, a plurality of contact through holes (8) are formed in one surface of the silicone protective cover (4), and the size of each contact through hole (8) is matched with the size of the key contact (7) in sliding fit.

4. The patch type silicone key for electronic equipment according to claim 3, wherein the upper surface of the pressing plate (10) is attached to the inner upper surface of the silicone keycap (5), and the size of the pressing plate (10) is matched with that of the empty groove (13).

5. The patch type silicone key according to claim 4, wherein a spring rod through hole (12) is formed in a surface of the silicone limiting plate (11), and a size of the spring rod through hole (12) matches a size of the spring rod (9).

6. The patch-type silicone key for electronic equipment according to claim 5, wherein the stroke of the spring rod (9) is adapted to the height of the empty groove (13).

7. The patch type silicone key for electronic equipment according to claim 6, wherein the size of the support rod (14) is adapted to the size of the silicone protective cover (4).

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