CN219658588U - Double-sided circuit metal substrate and light-emitting assembly module - Google Patents

Abstract

The utility model discloses a double-sided circuit metal substrate and a light-emitting component module, wherein a key cap is arranged above an insulating layer, an elastic conducting piece is arranged between the key cap and the insulating layer, an isolating layer is arranged below the insulating layer, a conducting component is arranged below the isolating layer, an opening is arranged on the conducting component corresponding to the position of the key cap, an LED lamp is arranged below the conducting component, a shading film is arranged below the conducting component, a first through hole is arranged on the shading film corresponding to the LED lamp, a light guide film is arranged below the shading film, a second through hole is arranged on the light guide film corresponding to the LED lamp, the LED lamp is arranged in the first through hole and the second through hole, a light guide lattice point is arranged on the light guide film corresponding to the opening, and a light reflecting layer is arranged below the light guide film. The structure of the existing backlight keyboard is changed, the structure between the metal substrate and the key cap is simplified, and further heat dissipation of the keyboard by self heat dissipation of the notebook computer is facilitated.

Description

Double-sided circuit metal substrate and light-emitting assembly module

Technical Field

The utility model relates to a double-sided circuit metal substrate and a light-emitting component module, which are applied to the field of computer accessories.

Background

The keyboard is the most commonly used and main input device, and english letters, chinese characters, numerals, punctuation marks and the like can be input into a computer through the keyboard, so that commands, input data and the like can be sent to the computer. It can be said that since the day of computer generation, a keyboard is one of the indispensable peripheral devices of a computer.

Along with the continuous development of keyboards, in order to make the keyboard have better result of use, keyboard in a poor light (or be called luminous keyboard) just has created, and it designs into the light-transmitting structure with the key cap, utilizes the illumination that backlight unit sent to shine the key cap, and on the one hand more is applicable to the use of input at night, conveniently sees the word on the key cap clearly, on the other hand also can produce more dazzling effect. The luminous keyboard structure in the prior art is that a backlight module is arranged inside the keyboard, a metal substrate is arranged below the backlight module, the key caps are illuminated through the backlight module to emit light, the backlight module generally comprises a shading film, a light guide film, a reflecting film and LEDs, the shading film, the light guide film and the reflecting film are arranged in a stacked mode, the LEDs are arranged on the side face of the light guide film, light emitted by the LEDs is injected into the light guide film, and is LED to the key caps to be penetrated out through the light guide film so as to illuminate the key caps.

The backlight keyboard commonly used at present has the inherent defects due to the structural limitation: (1) Because the LED lamp is arranged between the key cap and the backlight module, the heat dissipation of the backlight module is not facilitated, the heat is easily concentrated, and the problem of local heat of the keyboard exists; (2) The metal substrate is positioned below the backlight module, plays a role in supporting the key cap, and the key cap of the existing backlight keyboard needs to penetrate through the backlight module to be connected with the metal substrate, so that the structure of the existing backlight keyboard is complex, and the heat dissipation of the backlight keyboard is not facilitated.

Disclosure of Invention

Aiming at the problems of complex structure and poor heat dissipation effect of the backlight keyboard in the prior art, the utility model provides a double-sided circuit metal substrate and a light-emitting component module, which adopt a conduction component structure to enable a metal substrate to be positioned below a key cap, change the structure of the existing backlight keyboard, enable a shading film, a light guide film and a reflecting film not to be positioned between the metal substrate and the key cap, simplify the structure between the metal substrate and the key cap, and further facilitate the heat dissipation of the notebook computer to further dissipate the heat of the keyboard.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a double-sided circuit metal substrate and luminous subassembly module, the module includes key cap, elasticity conduction spare, insulating layer, isolation layer, conduction subassembly, LED lamp, shading membrane, light guide membrane and reflective membrane, the key cap sets up in the insulating layer top, elasticity conduction spare sets up between key cap and insulating layer, be equipped with first conductive contact on the insulating layer, elasticity conduction spare corresponds first conductive contact sets up on the insulating layer, the isolation layer sets up the insulating layer below, isolation layer corresponds first conductive contact position department and is equipped with the contact through-hole, conduction subassembly sets up the isolation layer below, conduction subassembly is last to correspond first conductive contact position department and is equipped with the second conductive contact, conduction subassembly is last to be equipped with the opening corresponding to the key cap position, the LED lamp sets up in conduction subassembly below, the shading membrane sets up conduction subassembly below, correspond on the shading membrane the LED lamp is equipped with first through-hole, the light guide membrane sets up first conductive contact sets up on the light guide membrane corresponds the LED lamp is equipped with the second screen dot lamp, the second LED lamp corresponds the light guide membrane is arranged in the light guide membrane below the opening.

Further, the conduction assembly comprises an upper circuit layer, a metal substrate and a lower circuit layer, wherein the upper circuit layer is arranged above the metal substrate, the lower circuit layer is arranged below the metal substrate, the second conductive contact is arranged above the upper circuit layer, the LED lamp is arranged below the lower circuit layer, the upper circuit layer is provided with a first opening corresponding to the position of the key cap, the metal substrate is provided with a second opening corresponding to the first opening, and the lower circuit layer is provided with a third opening corresponding to the second opening.

Further, the reflective layer is provided with a circular arc protrusion facing downwards at the position corresponding to the LED lamp.

Further, a color for reflecting light is arranged above the light reflecting layer, and a color for shading light is arranged below the light reflecting layer.

Further, the thicknesses of the upper circuit layer and the lower circuit layer are 0.05-0.1mm, the upper circuit layer is black or white, the lower circuit layer is of a color capable of reflecting light, the metal substrate is a metal sheet, and the thickness of the metal sheet is 0.15-0.25mm.

Further, the light guide mesh points are arranged above or below the light guide film, and the thickness of the light guide film is 0.010-0.25mm.

Further, the first conductive contact and the second conductive contact are silver paste points or conductors.

Further, the insulating layer, the isolating layer, the conducting component, the shading film, the light guide film and the reflecting film are fixedly installed together through adhesive layers in sequence, and the adhesive layers are 0.02mm-0.025mm.

Further, the upper circuit layer, the metal substrate and the lower circuit layer are mutually adhered together.

Further, a scissor foot is arranged between the key cap and the upper conducting component, and a clamping hook for clamping the scissor foot is arranged above the metal substrate.

The utility model has the beneficial effects that: the utility model provides a double-sided circuit metal base material and a light-emitting component module, which adopt a conduction component structure, so that a metal base plate is arranged below a key cap, the structure of the traditional backlight keyboard is changed, a shading film, a light guide film and a reflecting film are not arranged between the metal base plate and the key cap, the structure between the metal base plate and the key cap is simplified, further heat dissipation of the keyboard by the notebook computer is facilitated, and meanwhile, an isolation layer is added between an elastic conduction component and the conduction component, so that misoperation caused by automatic conduction when the key cap is not pressed is prevented.

Drawings

FIG. 1 is a schematic diagram showing a partial exploded view of a double-sided circuit metal substrate and a light emitting device module according to the present utility model;

FIG. 2 is a schematic diagram of an exploded view of a conductive assembly according to the present utility model;

FIG. 3 is a schematic top view of a double-sided circuit metal substrate and a light emitting module according to the present utility model;

fig. 4 is a schematic structural diagram of an upper circuit layer provided by the present utility model;

fig. 5 is a schematic structural diagram of a lower circuit layer provided by the present utility model.

Reference numerals: 1-a key cap; 2-elastic conduction member; 3-an insulating layer; 31-a first conductive contact; 4-isolating layer; 41-contact through holes; a 5-pass assembly; 51-upper wiring layer; 511-a second conductive contact; 512-first opening; 52-a metal substrate; 521-a second opening; 522-hooks; 53-lower wiring layer; 531-a third opening; 54-LED lamps; 6-a light shielding film; 61-a first through hole; 7-a light guiding film; 71-a second through hole; 72-light guide dots; 8-a reflective film; 81-arc protrusions; 9-an adhesive layer; 10-scissors feet.

Detailed Description

In order to make the objects, technical solutions and effects of the present utility model clearer and more specific, the present utility model will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-5, the module of the present utility model includes a key cap 1, an elastic conductive member 2, an insulating layer 3, an isolation layer 4, a conductive member 5, an LED lamp 54, a light shielding film 6, a light guiding film 7, and a reflective film 8. In specific implementation, the key cap 1 is arranged above the insulating layer 3, the elastic conducting piece 2 is arranged between the key cap 1 and the insulating layer 3, the insulating layer 3 is provided with a first conductive contact 31, the elastic conducting piece 2 is arranged on the insulating layer 3 corresponding to the first conductive contact 31, the elastic conducting piece 2 can be a dome sheet, when the key cap 1 is pressed, the first conductive contact 31 is stressed and communicated with the second conductive contact 511 under the action of the elastic conducting piece 2, the misoperation caused by automatic conduction when the key cap is not pressed is prevented, an isolation layer is added between the elastic conducting piece and the conducting component, the isolation layer 4 is arranged below the insulating layer 3, the position of the isolation layer 4 corresponding to the first conductive contact 31 is provided with a contact through hole 41 for the communication of the first conductive contact 31 and the second conductive contact 511, the conducting component 5 is arranged below the isolation layer 4, the conducting component 5 is provided with a second conducting contact 511 corresponding to the first conducting contact 31, the conducting component 5 is provided with an opening corresponding to the key cap 1, the opening is used for light to pass through, the LED lamp 54 is arranged below the conducting component 5, so that the LED lamp 5 is downwards arranged and can directly radiate heat, thereby achieving the effect of convenient radiation, the notebook computer is beneficial to radiating the keyboard, the LED lamp 54 is top-light-emitting or side-light-emitting, the shading film 6 is arranged below the conducting component 5, the shading film 6 has two functions of reflection and shading, the shading film 6 is provided with a first through hole 61 corresponding to the LED lamp 54, the light guiding film 7 is arranged below the shading film 6, the light guiding film 7 is provided with a second through hole 71 corresponding to the LED lamp 54, the LED lamp 54 is arranged in the first through hole 61 and the second through hole 71, the light guiding mesh point 72 is arranged corresponding to the opening on the light guiding film 7, the reflecting layer is arranged below the light guiding film 7, the light from the LED lamp is directed into the light directing film and exits through the light directing dots 72, thereby illuminating the key cap.

In this embodiment, the conductive assembly 5 includes an upper circuit layer 51, a metal substrate 52 and a lower circuit layer 53, where the upper circuit layer 51 and the lower circuit layer 53 are preferably copper foil circuits, the metal substrate 52 is preferably a steel sheet, the upper circuit layer 51 is disposed above the metal substrate 52, the lower circuit layer 53 is disposed below the metal substrate 52, and the second conductive contact 511 is disposed above the upper circuit layer 51, where the first conductive contact 31 and the second conductive contact 511 are silver paste dots or conductors, or other materials capable of conducting electricity. The LED lamp 54 is disposed below the lower circuit layer 53, the upper circuit layer 51 has a first opening 512 corresponding to the key cap 1, the metal substrate 52 has a second opening 521 corresponding to the first opening 512, and the lower circuit layer 53 has a third opening 531 corresponding to the second opening 521. The metal substrate is arranged below the key cap, so that the structure of the existing backlight keyboard is changed, the shading film, the light guide film and the reflecting film are not arranged between the metal substrate and the key cap, the heat dissipation effect is improved, and the touch feeling during use is also improved.

In this embodiment, the isolation layer 4 may be made of a film material or a gel material, and is insulated and isolated.

In this embodiment, in order to collect light more conveniently, a circular arc protrusion 81 facing downward is provided at a position of the reflective layer corresponding to the LED lamp 54. Further, the color used for reflecting light is arranged above the reflecting layer, the color of the reflecting light is white, fluorescent white and the like, the LED lamp number is saved, the heating source is reduced through the reflecting color, the color used for shading is arranged below the reflecting layer, for example, the shading color is black and the like, a good shading effect can be achieved, and the whole using effect of the keyboard is improved.

In this embodiment, the thicknesses of the upper circuit layer 51 and the lower circuit layer 53 are both 0.05-0.1mm, the upper circuit layer 51 is black or white, the lower circuit layer 53 is a color capable of reflecting light, and the thickness of the metal sheet is 0.15-0.25mm.

In this embodiment, the light shielding film 6 is made of PET (polyethylene terephthalate) material, the lower layer of the light shielding film 6 is provided with white ink for reflecting light, so that upward light emitted by the LED lamp 54 can be reflected back into the light guiding film 7 to enhance brightness, the upper layer of the light shielding film 6 is provided with black ink for shielding light, so as to prevent light from being transmitted from other areas except the position of the key cap 1, and influence the overall use effect of the keyboard. Spraying, screen printing and the like

In this embodiment, the light guide dots 72 are disposed above or below the light guide film 7, the light guide dots 72 may be formed by conventional methods such as coating, silk screen printing, dot printing, UV glue or embossing, and the thickness of the light guide film 7 is 0.010-0.25mm at the position of the light guide dots 72 corresponding to the opening.

In this embodiment, for convenient production and transportation, can adopt adhesive layer 9 fixed mounting in proper order between insulating layer 3, isolation layer 4, switch on subassembly 5, shading membrane 6, light guide membrane 7 and the reflective membrane 8 together, thereby can regard insulating layer 3, isolation layer 4, switch on subassembly 5, shading membrane 6, light guide membrane 7 and reflective membrane 8 as an organic whole, wherein adhesive layer 9 is thermosetting adhesive, adhesive etc. and prevents removing to its whole reinforcement, also plays equipment convenient integrative transportation simultaneously, also can not adopt adhesive layer 9, also reaches the optimal structure simultaneously for compact structure increases, in the concrete implementation, preferred adhesive layer 9 is 0.02mm-0.025mm.

In this embodiment, the upper circuit layer 51, the metal substrate 52 and the lower circuit layer 53 are adhered to each other, or may be made into an integral structure, and may be adhered together by using thermosetting adhesive or pressure-sensitive adhesive

Further, a scissor leg 10 is installed between the key cap 1 and the upper conducting component 5, a clamping hook 522 for clamping the scissor leg 10 is arranged above the metal substrate 52, and the clamping hook 522 penetrates through the insulating layer 3 and the isolating layer 4 to be connected with the scissor leg 10. In specific implementation, by pressing the key cap 1, pressure is applied to the scissor leg 10, so that the elastic conduction member 2 is stressed to deform, so that the first conductive contact 31 is conducted with the second conductive contact 511, a key effect is achieved, after the key cap 1 is loosened, the scissor leg 10 and the elastic conduction member 2 rebound, and the first conductive contact 31 is separated from the second conductive contact 511 to be disconnected.

It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims (10)

1. The utility model provides a double-sided circuit metal substrate and luminous component module, its characterized in that, the module includes key cap (1), elasticity conduction spare (2), insulating layer (3), isolation layer (4), switches on subassembly (5), LED lamp (54), shading membrane (6), leaded light membrane (7) and reflective membrane (8), key cap (1) set up in insulating layer (3) top, elasticity conduction spare (2) set up between key cap (1) and insulating layer (3), be equipped with first conductive contact (31) on insulating layer (3), elasticity conduction spare (2) correspond first conductive contact (31) set up on insulating layer (3), isolation layer (4) set up insulating layer (3) below, isolation layer (4) correspond first conductive contact (31) position department and are equipped with contact through-hole (41), switch on subassembly (5) set up in insulating layer (4) below, switch on subassembly (5) correspond first conductive contact (31) position department and be equipped with second conductive contact (511), switch on subassembly (2) correspond first conductive contact (31) set up in insulating layer (3) below, switch on subassembly (4) position are equipped with opening (5) below LED lamp (5), the LED lamp is characterized in that a first through hole (61) is formed in the shading film (6) corresponding to the LED lamp (54), the light guide film (7) is arranged below the shading film (6), a second through hole (71) is formed in the light guide film (7) corresponding to the LED lamp (54), the LED lamp (54) is arranged in the first through hole (61) and the second through hole (71), a light guide lattice point (72) is arranged on the light guide film (7) corresponding to the opening, and the light reflecting layer is arranged below the light guide film (7).

2. The double-sided circuit metal substrate and light emitting component module according to claim 1, wherein the conducting component (5) comprises an upper circuit layer (51), a metal substrate (52) and a lower circuit layer (53), the upper circuit layer (51) is arranged above the metal substrate (52), the lower circuit layer (53) is arranged below the metal substrate (52), the second conductive contact (511) is arranged above the upper circuit layer (51), the LED lamp (54) is arranged below the lower circuit layer (53), the upper circuit layer (51) is provided with a first opening (512) corresponding to the key cap (1), the metal substrate (52) is provided with a second opening (521) corresponding to the first opening (512), and the lower circuit layer (53) is provided with a third opening (531) corresponding to the second opening (521).

3. The double-sided circuit metal substrate and light emitting assembly module according to claim 1, wherein the reflective layer is provided with a downward-facing arc protrusion (81) at a position corresponding to the LED lamp (54).

4. The double-sided circuit metal substrate and light emitting assembly module of claim 1, wherein the reflective layer has a color for reflecting light above and a color for shading light below.

5. The double-sided circuit metal substrate and light emitting component module according to claim 2, wherein the thickness of the upper circuit layer (51) and the lower circuit layer (53) is 0.05-0.1mm, the upper circuit layer (51) is black or white, the lower circuit layer (53) is a color capable of reflecting light, the metal substrate (52) is a metal sheet, and the thickness of the metal sheet is 0.15-0.25mm.

6. The double-sided circuit metal substrate and light emitting component module according to claim 1, wherein the light guide dots (72) are arranged above or below the light guide film (7), and the thickness of the light guide film (7) is 0.010-0.25mm.

7. The double-sided circuit metal substrate and light emitting assembly module of claim 1, wherein the first conductive contact (31) and the second conductive contact (511) are silver paste dots or conductors.

8. The double-sided circuit metal substrate and light-emitting component module according to claim 1, wherein the insulating layer (3), the isolation layer (4), the conducting component (5), the shading film (6), the light guiding film (7) and the light reflecting film (8) are fixedly installed together by adopting an adhesive layer (9) in sequence, and the adhesive layer (9) is 0.02mm-0.025mm.

9. The double-sided circuit metal substrate and light emitting module according to claim 2, wherein the upper wiring layer (51), the metal substrate (52) and the lower wiring layer (53) are adhered to each other.

10. The double-sided circuit metal base material and light-emitting component module according to claim 2, wherein a scissor leg (10) is installed between the key cap (1) and the upper conducting component (5), and a clamping hook (522) for clamping the scissor leg (10) is arranged above the metal base plate (52).