CN212365812U

CN212365812U - LED lamp digital display's membrane switch

Info

Publication number: CN212365812U
Application number: CN202021602932.0U
Authority: CN
Inventors: 汤海为; 王海朝; 杜东东; 石佳蕊; 郭帅星
Original assignee: Meiborui Xianghe Electronic Information Technology Co ltd
Current assignee: Meiborui Xianghe Electronic Information Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-01-15
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a LED lamp digital display's membrane switch, including the mask layer, adhesive connection has last interlayer, pressure shell fragment PET in proper order under the mask layer, lower interlayer, circuit layer, gum layer, be provided with the arch on the mask layer, and be provided with the diffusion piece in the arch, diffusion piece outside package has the rubber ring, be connected with black acrylic glass under the arch, the black acrylic glass other end is connected on the circuit layer, be provided with metal shrapnel on the circuit layer, and metal shrapnel electric connection has LED lamp array, and LED lamp array is covered by black acrylic glass. This LED lamp digital display's membrane switch adopts SMD LED lamp array, assembles on silver thick liquid circuit or FPC or PCB circuit, can compress the structural thickness of whole product within 1.5mm to the combination is convenient, and the time limit for a project is short, can be applicable to curved installation face, and the application LED lamp array combines together with the pad pasting of ya keli board, diffusion piece, printing, realizes that membrane switch display window carries out digital display's function.

Description

LED lamp digital display's membrane switch

Technical Field

The utility model relates to a membrane switch technical field specifically is a LED lamp digital display's membrane switch.

Background

The membrane switch is also called as a touch keyboard, adopts an integral sealing structure formed by combining a plurality of layers of planes, is a novel integrated light-collecting, mechanical and electrical electronic component which seals a key switch, a panel, a mark, a symbol display and a lining plate together, is a fundamental change of the appearance structure of an electronic product, can replace the keys of conventional discrete components, and can more reliably execute the task of an operating system.

The existing digital display scheme of the membrane switch control panel is to use a PCB and a nixie tube to carry out digital display, the processing period is long, the processing cost is high, the structure of the product is limited by the PCB and the nixie tube, the thickness of the product is very high and can not be lower than 10mm, and a shell structure is required to support.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a membrane switch of LED lamp digital display to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a LED lamp digital display's membrane switch, includes the mask layer, there are interlayer, pressure shell fragment PET, lower interlayer, circuit layer, gum layer in the bonding connection in proper order under the mask layer, be provided with the arch on the mask layer, and be provided with the diffusion piece in the arch, diffusion piece outside package has the rubber ring, be connected with black acrylic glass under the arch, the black acrylic glass other end is connected on the circuit layer, be provided with metal shrapnel on the circuit layer, and metal shrapnel electric connection has LED lamp array, and LED lamp array is covered by black acrylic glass, LED lamp array is seven independent LED lamp controls, and every LED lamp is provided with "8" character by single return control in the arch, and "8" character printing transparent black or transparent tea show comes out.

Preferably, the key is arranged on the mask layer.

Preferably, the lower part of the key is provided with a metal pad point, and the lower part of the metal pad point is connected with a metal elastic sheet.

Preferably, the upper interlayer is provided with a through hole, and the shape of the through hole is matched with the combined shape of the bulge and the key.

Preferably, the spring pressing piece PET is provided with a through hole, and the shape of the through hole is matched with the combined shape of the protrusion and the key.

Preferably, a perspective window is arranged on the lower interlayer, and the perspective window is matched with the arrangement position of the LED lamp array.

Preferably, the gum layer is provided with a rectangular hole.

Preferably, the black acrylic glass is divided into three grids which are respectively used for separating three LED lamp arrays.

Compared with the prior art, the beneficial effects of the utility model are that: this LED lamp digital display's membrane switch adopts SMD LED lamp array, assembles on silver thick liquid circuit or FPC or PCB circuit, can compress the structural thickness of whole product within 1.5mm to the combination is convenient, and the time limit for a project is short, can be applicable to curved installation face, and the application LED lamp array combines together with the pad pasting of ya keli board, diffusion piece, printing, realizes that membrane switch display window carries out digital display's function.

Drawings

Fig. 1 is a front view of a membrane switch with digital display of an LED lamp according to the present invention;

fig. 2 is a top view of the mask layer of the digital display membrane switch of the LED lamp of the present invention;

fig. 3 is a top view of the upper spacer of the digital LED lamp membrane switch of the present invention;

fig. 4 is a schematic view of the connection structure of the rubber ring and the diffusion sheet of the membrane switch for digital display of LED lamp according to the present invention;

fig. 5 is a top view of the pressing spring piece PET of the membrane switch of the LED lamp digital display of the present invention;

fig. 6 is a top view of the lower spacer of the digital LED lamp membrane switch of the present invention;

fig. 7 is a top view of the back adhesive layer of the digital LED lamp membrane switch of the present invention;

fig. 8 is a top view of a circuit layer of a membrane switch for digital display of LED lamp according to the present invention;

fig. 9 is a structural diagram of the black acrylic glass and the LED lamp array of the digital LED lamp display membrane switch of the present invention;

fig. 10 is a schematic view of a connection structure between a metal dome and a metal pad of a membrane switch with digital display of an LED lamp according to the present invention.

In the figure: 1. the LED backlight module comprises a mask layer, 2 parts of an upper interlayer, 3 parts of a pressing elastic sheet PET, 4 parts of a lower interlayer, 5 parts of a circuit layer, 6 parts of a back glue layer, 7 parts of a key, 8 parts of a protrusion, 9 parts of a diffusion sheet, 10 parts of black acrylic glass, 11 parts of an LED lamp array, 12 parts of a through hole, 13 parts of a rubber ring, 14 parts of a metal elastic sheet, 15 parts of a metal pad point, 16 parts of a perspective window.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a film switch with LED lamp digital display comprises a surface film layer 1, an upper interlayer 2, a press spring sheet PET3, a lower interlayer 4, a circuit layer 5 and a back glue layer 6 are sequentially connected under the surface film layer 1 in an adhering mode, a bulge 8 is arranged on the surface film layer 1, a diffusion sheet 9 is arranged in the bulge 8, a rubber ring 13 is wrapped outside the diffusion sheet 9, a key 7 is arranged on the surface film layer 1, a metal pad point 15 is arranged on the lower portion of the key 7, a metal spring sheet 14 is connected on the lower portion of the metal pad point 15, a through hole 12 is arranged on the upper interlayer 2, the shape of the through hole 12 is matched with the combined shape of the bulge 8 and the key 7, a through hole 12 is arranged on the press spring sheet PET3, the shape of the through hole is matched with the combined shape of the bulge 8 and the key 7, a perspective window 16 is arranged on the lower interlayer 4, the perspective window 16 is matched with, and is convenient for installing black acrylic glass 10, the hole matched with the key 7 is convenient for installing metal cushion point 15, rectangular hole is opened on the back glue layer 6, the rectangular hole is convenient for extending out of the line of the circuit layer 5, the black acrylic glass 10 is divided into three grids to separate three LED lamp arrays 11 respectively, the black acrylic glass 10 is connected under the bulge 8, the black acrylic glass 10 can separate each LED lamp array 11, the display effect of light is better, the other end of the black acrylic glass 10 is connected on the circuit layer 5, the metal shrapnel 14 is arranged on the circuit layer 5, the metal shrapnel 14 is electrically connected with the LED lamp array 11, the LED lamp array 11 is covered by the black acrylic glass 10, the LED lamp array 11 is seven independent LED lamps, each LED lamp is controlled by a single circuit, the bulge 8 is provided with 8 characters, and the 8 characters are printed with transparent black or transparent tea color to display, the LED lamp array 11 can show 0-9 digital display through different lighting combinations of the 7 LED lamps, the LED lamp array 11 arranged in an 8 shape is added, the number of displayed numbers can be increased, the bottom layer is the back glue layer 6 and can be adhered to the surface of an object, the circuit layer 5 is arranged upwards, the LED lamp array 11, the metal elastic sheet 14 and the metal cushion points 15 are arranged on the circuit layer, the metal cushion points 15 are used for complementing the distance between the top of the metal elastic sheet 14 and the keys of the surface film layer 1 and enhancing the hand feeling of the keys, the black acrylic glass 10 is assembled right above the LED lamp array 11, and the double-faced glue is fixed on the circuit layer 4 through the lower interlayer 4.

The working principle is as follows: when the LED lamp digital display membrane switch is used, whether parts of the device are damaged or not firmly connected is checked, the device is used after the parts are checked to be correct, the number, the size and the position of the displayed numbers can be freely designed and increased or decreased, the application range is wider and more convenient, the colors of the numbers can be freely defined, red and orange are generally selected, the black acrylic glass 10 can be freely selected between 0.5mm and 2mm, the height of the bulge 8 at the digital display part of the mask layer 1 is adjusted correspondingly, the structural thickness of the scheme is between 0.9 mm and 2.5mm and is far smaller than that of a conventional digital tube structure, the structure is formed by PET and an adhesive layer, so that the arc surface can be used, the black acrylic glass 10 can be replaced by black foam with a larger radian, and the application scene is wider, the bottom layer is a back glue layer 6 which can be pasted on the surface of an object, a circuit layer 5 is arranged upwards, an LED lamp array 11, a metal elastic sheet 14 and metal pad points 15 are arranged on the back glue layer, the metal pad points 15 are used for complementing the distance between the top of the metal elastic sheet 14 and keys of a face film layer 1 and enhancing the hand feeling of the keys, black acrylic glass 10 is assembled right above the LED lamp array 11 and fixed on the circuit layer 4 through a lower interlayer 4 double-sided adhesive, the black acrylic glass 10 can prevent LED lamps from being mutually crossed, a diffusion sheet 9 and a rubber ring 13 are arranged on the black acrylic glass 10, protrusions 8 are arranged at corresponding positions of the face film layer 1, the height of the protrusions 8 is adjusted according to the black acrylic glass 10, the diffusion sheet 9 and the rubber ring 13, characters of 8 positions of the protrusions 8 of the face film layer 1 are printed with transparent black or transparent tea colors, and the peripheral areas are. When the LED lamp is electrified and lightened, light passes through the gap of the black acrylic glass 10, then is scattered by the diffusion sheet 9 and the rubber ring 13, and is displayed by printing transparent black or transparent brown through the '8' characters on the mask layer 1, which is the working principle of the film switch for the digital display of the LED lamp.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a membrane switch of LED lamp digital display, includes mask layer (1), its characterized in that: the LED lamp is characterized in that an upper interlayer (2), an elastic pressing sheet PET (3), a lower interlayer (4), a circuit layer (5) and a gum layer (6) are sequentially connected under a mask layer (1) in an adhering mode, a bulge (8) is arranged on the mask layer (1), a diffusion sheet (9) is arranged in the bulge (8), a rubber ring (13) is wrapped outside the diffusion sheet (9), black acrylic glass (10) is connected under the bulge (8), the other end of the black acrylic glass (10) is connected onto the circuit layer (5), a metal elastic sheet (14) is arranged on the circuit layer (5), the metal elastic sheet (14) is electrically connected with an LED lamp array (11), the LED lamp array (11) is covered by the black acrylic glass (10), the LED lamp array (11) is seven independent LED lamps, each LED lamp is controlled by a single loop, and 8 characters are arranged on the bulge (8), and the 8 character is printed with transparent black or transparent brown color.

2. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: the key (7) is arranged on the mask layer (1).

3. The membrane switch of the LED lamp digital display according to claim 2, characterized in that: the lower part of the key (7) is provided with a metal pad point (15), and the lower part of the metal pad point (15) is connected with a metal elastic sheet (14).

4. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: the upper interlayer (2) is provided with a through hole (12), and the shape of the through hole (12) is matched with the combined shape of the bulge (8) and the key (7).

5. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: the spring pressing plate PET (3) is provided with a through hole (12), and the shape of the through hole (12) is matched with the combined shape of the protrusion (8) and the key (7).

6. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: the lower interlayer (4) is provided with a perspective window (16), and the perspective window (16) is matched with the arrangement position of the LED lamp array (11).

7. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: rectangular holes are formed in the back glue layer (6).

8. The membrane switch of the LED lamp digital display as claimed in claim 1, wherein: the black acrylic glass (10) is divided into three grids which are respectively used for separating three LED lamp arrays (11).