CN216414669U - DOME air guide groove integral structure - Google Patents

Abstract

The utility model discloses a DOME air guide groove integrated structure, which comprises a substrate, a DOME sheet, an air guide groove and a Mylar film, wherein the air guide groove is arranged on the substrate, the DOME sheet is arranged on the substrate corresponding to the air guide groove, the air guide groove comprises a plurality of accommodating grooves and a plurality of air guide pipelines, the DOME sheet is arranged in the accommodating grooves, one end of each air guide pipeline is communicated with one accommodating groove, the other end of each air guide pipeline is communicated with the other accommodating groove, one surface of the substrate, which is provided with the DOME sheet, is provided with a pasting area, the pasting area is distributed outside the air guide groove, the Mylar film is fixed in the pasting area through a pasting agent, the DOME sheet and the air guide groove are arranged between the substrate and the Mylar film, the accommodating grooves and the air guide pipelines are adopted, the accommodating grooves are connected through the air guide pipelines, so that air always flows in the air guide groove in the specific use process, thereby ensuring consistent hand feeling when in use.

Description

DOME air guide groove integral structure

Technical Field

The utility model relates to an integrated structure, in particular to a DOME air guide groove integrated structure which is applied to the technical field of keys of electronic products.

Background

The DOME sheet, i.e. the Metal DOME conductive film, is also called a DOME conductive film (Metal DOME/DOME array), and is a PET adhesive sheet containing Metal DOMEs (DOME sheets), the position of each Metal DOME/DOME sheet is arranged according to the corresponding PAD (PAD) position on the circuit board, and other components are provided with corresponding void-avoiding positions and positioning holes. The DOME film is used as a switch on a circuit board such as a PCB, an FPC or a soft board, and plays an important role of a touch switch between a user and an instrument. Compared with the traditional silica gel key, the conductive film has better hand feeling and longer service life, and can indirectly improve the production efficiency of various switches using the conductive film.

Present flexible line way board is when installing the DOME piece, is to laminate the DOME piece after the product shaping, and it adopts a DOME piece to install at an air guide groove alone more, and after laminating, lead to DOME piece value of feeling weak partially, has the DOME piece variation of feeling when the product uses, influences the user and uses experience.

Disclosure of Invention

The utility model provides a DOME air guide groove integrated structure, which adopts a containing groove and an air guide pipeline, and is connected with the containing groove through the air guide pipeline, so that air always flows in the air guide groove in the specific use process, and the hand feeling is consistent when the circuit board is used.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a DOME air guide groove integral type structure, DOME air guide groove integral type structure is including base plate, DOME piece, air guide groove and wheat draw the membrane, the air guide groove sets up on the base plate, the DOME piece corresponds air guide groove position is installed on the base plate, the air guide groove includes a plurality of storage tank and a plurality of air guide pipeline, the DOME piece is arranged in the storage tank, air guide pipeline one end and a storage tank are linked together, the air guide pipeline other end is linked together with another storage tank, the one side that the DOME piece was installed to the base plate is equipped with the adhesion area, the adhesion area distributes and is leading the air groove outside, the wheat draws the membrane to fix in the adhesion area through the bonding agent, the DOME piece with lead the air groove and arrange in between base plate and the wheat draw the membrane.

Furthermore, any side of the containing groove is provided with a protruding groove, or any side of the air guide pipeline is provided with a protruding groove.

Further, the width of the air guide pipeline is 0.5-2 mm.

Further, the distance between the DOME piece and the edge of the containing groove is 0.1-0.2 mm.

Furthermore, the width of the protruding groove is 0.5-2mm, and the length of the protruding groove is 0.5-2 mm.

Further, the width of the pasting area of the substrate is 2-4 mm.

Furthermore, an opening part is arranged on one side or two sides of the substrate, and the opening part is arranged between the two accommodating grooves.

Further, the adhesive is glue.

The utility model has the beneficial effects that: the utility model provides a DOME air guide groove integrated structure, which adopts an accommodating groove and an air guide pipeline, and is connected with the accommodating groove through the air guide pipeline, so that air always flows in the air guide groove in the specific use process, and the hand feeling is ensured to be consistent when the air guide groove is used.

Drawings

FIG. 1 is a schematic view of the overall structure of a DOME air guide groove integrated structure provided by the present invention;

FIG. 2 is an exploded view of a DOME gas guide groove integrated structure provided by the present invention.

Reference numerals: 1-substrate, 2-DOME piece, 3-air guide groove, 31-containing groove, 32-air guide pipe, 33-protruding groove, 4-Mylar film, 5-sticking area and 6-opening part.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-2, the present invention provides a DOME air guide groove integrated structure, where the DOME air guide groove integrated structure includes a substrate 1, a DOME sheet 2, an air guide groove 3, and a mylar film 4, the substrate 1 is a circuit board such as a PCB, an FPC, or a flexible board, the air guide groove 3 is disposed on the substrate 1, the DOME sheet 2 is mounted on the substrate 1 corresponding to the air guide groove 3, the air guide groove 3 includes a plurality of accommodating grooves 31 and a plurality of air guide channels 32, the DOME sheet 2 is disposed in the accommodating grooves 31, one end of each air guide channel 32 is communicated with one accommodating groove 31, the other end of each air guide channel 32 is communicated with another accommodating groove 31, for example, the air guide groove 3 includes 3 accommodating grooves 31 and 2 air guide channels 32, as shown in fig. 1, a bonding region 5 is disposed on one side of the substrate 1 where the DOME sheet 2 is mounted, and the bonding region 5 is distributed outside the air guide groove 3, the mylar film 4 is fixed in the pasting area 5 through the sticker for form confined space between whole base plate 1 and the mylar film 4, DOME piece 2 and air guide groove 3 are arranged in between base plate 1 and the mylar film 4, and in the concrete implementation, when pressing DOME piece 2, the air flows at air guide groove 3, increases the feel when using. The air guide groove 3 may also be in an annular shape, such as an end-to-end connection, where one end of the air guide duct 32 is communicated with one of the accommodating grooves 31, the other end of the air guide duct 32 is communicated with the other accommodating groove 31, and another air guide duct 32 is respectively communicated with the two accommodating grooves 31, so as to form an annular shape.

In this embodiment, in order to increase the hand feeling of pressing during use, the protruding groove 33 is provided on any side of the accommodating groove 31, or the protruding groove 33 is provided on any side of the air guide duct 32, in specific implementation, air is accommodated through the protruding groove 33, and particularly when a plurality of DOME sheets 2 are simultaneously pressed, the air accommodating effect is good, so as to enhance the hand feeling of use. In order to ensure the pressing feeling, a protruding groove 33 is required to be arranged every 3 accommodating grooves 31 in the air guide groove 3 to ensure the accommodation of air.

In this embodiment, in order to ensure the air fluidity, the width of the air guide duct 32 is 0.5 to 2 mm. The width of the air guide duct 32 is preferably 0.7mm, which has good air fluidity and compact structure.

In this embodiment, in order to ensure that the DOME sheet 2 is normally used, the distance between the DOME sheet 2 and the edge of the accommodating groove 31 is 0.1-0.2mm, and the distance between the preferable DOME sheet 2 and the edge of the accommodating groove 31 is 0.1mm, so that the structures of the DOME sheet 2 and the air guide groove 3 are compact without affecting the normal use of the DOME sheet 2.

In this embodiment, the width of the protruding groove 33 is 0.5-2mm, the length of the protruding groove 33 is 0.5-2mm, and the protruding groove 33 may be square or circular, and the diameter of the circle is 1mm, so that the requirement of air storage in the air guide groove 3 is satisfied.

In this embodiment, in order to ensure the sealing property in use, the width of the pasting region 5 of the substrate 1 is 2-4 mm. The width of the pasting region 5 is preferably 2mm, and the length thereof is set according to the shape of the substrate, and will not be described here.

In this embodiment, opening 6 has been seted up to one side or both sides of base plate 1, opening 6 sets up the position between two storage tanks 31, and in concrete implementation, according to the product structure, corresponding opening 6 of seting up, its opening 6 mainly used fixes the base plate on the product, perhaps avoids the step structure of product for base plate 1 can imbed into, makes the structure compacter, and it can effectively practice thrift the production material simultaneously, reaches reduction in production cost.

In the embodiment, the adhesive is preferably glue, so that the processing is convenient, materials such as adhesive sticker can be selected during specific implementation, the thickness of the adhesive is negligible, and the adhesive can meet the bonding requirement. Alternatively, during the manufacturing process, the mylar film 4 and the substrate 1 are fixed together by using another fixing structure without providing an adhesive.

It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.

Claims (8)

1. The utility model provides a DOME air guide groove integral type structure, its characterized in that, DOME air guide groove integral type structure is including base plate (1), DOME piece (2), air guide groove (3) and mylar membrane (4), air guide groove (3) set up on base plate (1), DOME piece (2) correspond air guide groove (3) position is installed on base plate (1), air guide groove (3) include a plurality of storage tank (31) and a plurality of air guide duct (32), DOME piece (2) are arranged in storage tank (31), air guide duct (32) one end is linked together with a storage tank (31), air guide duct (32) other end is linked together with another storage tank (31), the one side that DOME piece (2) was installed to base plate (1) is equipped with pasting region (5), pasting region (5) distribute in air guide groove (3) the outside, mylar membrane (4) are fixed in pasting region (5) through pasting agent, the DOME piece (2) and the air guide groove (3) are arranged between the substrate (1) and the Mylar film (4).

2. A DOME gas guide groove integrated structure as claimed in claim 1, wherein either side of the receiving groove (31) is provided with a protruding groove (33), or either side of the gas guide channel (32) is provided with a protruding groove (33).

3. A DOME air guide channel integral structure, according to claim 1, characterized in that the width of said air guide channel (32) is 0.5-2 mm.

4. A DOME air guide channel unitary structure as claimed in claim 1, wherein the distance between said DOME piece (2) and the edge of said receiving groove (31) is 0.1-0.2 mm.

5. A DOME air guide groove unitary structure according to claim 2, wherein said protruding groove (33) has a width of 0.5-2mm and the protruding groove (33) has a length of 0.5-2 mm.

6. A DOME air guide channel unitary structure as claimed in claim 1, wherein said attachment area (5) of said substrate (1) is 2-4mm wide.

7. A DOME air guide channel unitary structure according to claim 1, wherein said base plate (1) has an opening (6) formed in one or both sides thereof, said opening (6) being disposed at a position between two receiving grooves (31).

8. A DOME air guide channel unitary structure as claimed in claim 1, wherein said adhesive is glue.

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