CN209357651U - A kind of LED illuminated keyboard route template die group - Google Patents

Abstract

The utility model relates to a kind of LED illuminated keyboard route template die groups, specifically, make a double-sided wiring board, front-side circuit is silver paste or carbon slurry circuit or front is metallic circuit, silver paste or carbon slurry circuit are being printed on by key mapping, the back side is the metallic circuit for welding LED element, the assist side back side is welded with LED lamp bead of the leg at rim of a cup, make LED lamp bead rim of a cup towards wiring board, wiring board at LED lamp bead rim of a cup is translucent material or has a hole light-permeable, and the light that LED is issued passes through wiring board and issues towards face-key direction.

Description

A kind of LED illuminated keyboard route template die group

Technical field

The utility model relates to LED and its application fields, and in particular to a kind of LED illuminated keyboard route template die group.

Background technique

The leg of traditional LED patch support is all in bottom of a cup portion, and after manufactured lamp bead is soldered on wiring board, rim of a cup is backwards to line Road plate, LED light emission direction shine outwardly backwards to wiring board, but certain applications need LED lamp bead light emission direction towards wiring board side To, towards wiring board in shine, wiring board at this time is translucent material or is drilled with a light hole, and this application is usually to be used in key On disk lamp or the light bar being attached on window-glass and display screen etc..

In order to meet the needs of above market, a kind of LED illuminated keyboard route template die group of the utility model solves biography The problem of LED light of system is not able to satisfy light emission direction towards wiring board direction, the utility model all sets the leg of LED patch support Set in rim of a cup face, be adjacent to rim of a cup or close to rim of a cup, after being welded on wiring board, the light that LED lamp bead issues pass through wiring board from The face-key position of wiring board issues, and simplifies the structure of illuminated keyboard, greatly reduces cost.

Utility model content

The utility model relates to a kind of LED illuminated keyboard route template die groups, specifically, making a double-sided wiring board, just Face circuit is that perhaps carbon slurry circuit or front are that metallic circuit is being printed on silver paste or carbon slurry circuit, the back side by key mapping to silver paste It is the metallic circuit for welding LED element, welds the assist side back side with LED lamp bead of the leg at rim of a cup, make LED lamp bead rim of a cup Towards wiring board, the wiring board at LED lamp bead rim of a cup is translucent material or has a hole light-permeable, and the light that LED is issued passes through route Plate is issued towards face-key direction.

A kind of LED illuminated keyboard route template die group is provided according to the utility model, comprising: LED lamp bead；Odt circuit Wiring board；It is characterized in that, on the one hand the resin material that the LED lamp bead is injection molding forms cup, on the other hand rises and fix Positive and negative anodes sheet metal circuit, sheet metal circuit expose in the positive and negative anodes of bottom of a cup, are used for packaging LED chips, positive and negative anodes sheet metal electricity Road, towards the bending of rim of a cup direction, is formed close to the leg of rim of a cup, leg wraps rim of a cup or leg is close to rim of a cup outside cup Side is concordant with rim of a cup or exceeds rim of a cup or leg at rim of a cup backwards to rim of a cup bending, and formation is wing leg, is made LED patch support leg all in rim of a cup face, be adjacent to rim of a cup or close to rim of a cup, chip be fixed on the metal in bottom of a cup simultaneously Conducting is connected with bottom of a cup positive and negative anodes metal, has encapsulation mucilage sealing to live chip in cup；The wiring board of the odt circuit is front It is silver paste or carbon slurry circuit or to be metallic circuit printing silver paste by key mapping or carbon is starched, back-side circuit is the metal of soldered elements Circuit, wiring board intermediate insulating layer are light transmissions and/or are loopholes；LED lamp bead is welded on the wiring board of odt circuit, Lamp base is soldered on wiring board backside pads at rim of a cup, and the light that lamp bead issues passes through wiring board and sends out from the face-key position of wiring board Out, wiring board is that translucent material either has hole to pass through for light at the lamp bead place of shining.

In the description below to the drawings and specific embodiments, one or more embodiments of the utility model will be illustrated Details.

Detailed description of the invention

By reading this specification in conjunction with the following drawings, the feature, objects and advantages of the utility model will become more to show And be clear to, it is as follows to the brief description of accompanying drawing.

Fig. 1 is a kind of floor map of leg in the LED support in rim of a cup face.

Fig. 2 is the schematic cross-section that leg is close to the rim of a cup side LED support concordant with rim of a cup.

Fig. 3 be leg can bending wrap rim of a cup LED support schematic cross-section.

Fig. 4 is leg rim of a cup bending backwards at rim of a cup, forms the schematic cross-section of the LED support of wing leg.

Fig. 5 is that the section being close on the LED support concordant with rim of a cup of rim of a cup side after packaging LED chips in leg is illustrated Figure.

Fig. 6 be leg can bending wrap rim of a cup LED support on schematic cross-section after packaging LED chips.

Fig. 7 is the schematic cross-section on the LED support of wing leg after packaging LED chips.

Fig. 8 is that the LED lamp bead of " Fig. 5 " is welded on the schematic cross-section on the back metal circuit of light-transmitting double-layer circuit board.

Fig. 9 is that the LED lamp bead of " Fig. 5 " is welded on the back metal circuit of double-layer circuit board, the luminous place pair of LED lamp bead The schematic cross-section of loophole is provided on the wiring board answered.

Figure 10 is that the LED lamp bead of " Fig. 6 " is welded on the schematic cross-section on the back metal circuit of light-transmitting double-layer circuit board.

Figure 11 is that the LED lamp bead of " Fig. 6 " is welded on the back metal circuit of double-layer circuit board, the luminous place pair of LED lamp bead The schematic cross-section of loophole is provided on the wiring board answered.

Figure 12 is that the LED lamp bead of " Fig. 7 " is welded on the schematic cross-section on the back metal circuit of light-transmitting double-layer circuit board.

Figure 13 is that the LED lamp bead of " Fig. 7 " is welded on the back metal circuit of double-layer circuit board, the luminous place pair of LED lamp bead The schematic cross-section of loophole is provided on the wiring board answered.

Figure 14 is that the LED lamp bead of " Fig. 6 " is welded on the back metal circuit of double-layer circuit board, and LED lamp bead shines towards just The floor map of face key light emitting.

Specific embodiment

The utility model will be described in detail by taking preferred embodiment as an example below.

It should be appreciated to those skilled in the art that as described below be merely illustrative and describe some preferred implementation sides Formula, claim to the utility model simultaneously do not have any restrictions.

1, iron plate band mold is punched into the blank of LED bracket entire volume on the high velocity ram machine of the auspicious 45T of rainbow, by design Circuit.

2, electroplate processing will be carried out at LED support entire volume blank circuit with the plating line of Aomei spy.

3, it is molded on day essence injection molding machine with injection mold, forms the fixation to backbone metal, and form cup.

4, the bracket of injection molding is punched metal with punching Bending Mould on the high velocity ram machine of the auspicious 25T of rainbow, thrust again (as shown in Figure 1, Figure 2, some positions, while the metal leg 1 outside bending carrier cup form relatively independent single bracket after bending Shown in Fig. 3, Fig. 4), single bracket includes: positive and negative anodes sheet metal circuit 1；The high score subtree being moulded on electric metal piece circuit Rouge material 2, which is characterized in that on the one hand the resin material 2 of injection molding forms cup, on the other hand play fixed positive and negative anodes sheet metal electricity Road, sheet metal circuit 1 bottom of a cup positive and negative anodes expose, be used for packaging LED chips, positive and negative anodes sheet metal circuit 1 outside cup Towards the bending of rim of a cup direction, be formed close to the leg of rim of a cup, according to design, leg can bending wrap the leg 1.2 of rim of a cup (such as Shown in Fig. 3) or leg be close to the leg 1.1 (as shown in Figure 2) concordant with rim of a cup or beyond rim of a cup in rim of a cup side or weld For foot backwards to rim of a cup bending at rim of a cup, formation is wing leg 1.3 (as shown in Figure 4), leg is made all in rim of a cup face, It is adjacent to rim of a cup or the LED patch support close to rim of a cup.

5, on helping light DB382 bonder, by 3 die bond of LED chip on the positive and negative anodes sheet metal circuit 1 of bottom of a cup, baking 3 bonding wire of LED chip is connected to positive and negative anodes sheet metal circuit 1 with metal wire 4 then by ASM-AB350 bonding equipment by solidification It is upper that glue 5 is then encapsulated by dispenser point, LED chip 3 and metal wire 4 are encapsulated in carrier cup, baking-curing, are made LED lamp bead (such as Fig. 5, Fig. 6, Fig. 7, shown) at leg in rim of a cup face, then splits into single lamp bead, then large with dazzling XSFG2013-15050 light splitting machine is screened, and non-defective unit is filtered out, and defective products is directly scrapped, then by the non-defective unit filtered out with dazzling Large braider tape package.

6, the Flexible copper-clad plate of two-sided copper foil is used traditional circuit board manufacturing process, erosion by the double-layered circuit board of light transmission After carving double-sided circuit, positive by key mapping print silver paste or carbon slurry, welding resistance or be by the soft of single side copper foil is overleaf printed Property copper-clad plate circuit etching after, assist side without copper face print silver paste or carbon slurry, have copper circuit face print welding resistance, be fabricated to just Face is metallic circuit and perhaps carbon slurry circuit 7.3 or front are silver paste or carbon slurry 7.3 by the silver paste of key mapping, and centre is The insulating layer 7.2 of light, the back side are the double-layered circuit boards (as shown in Fig. 8, Figure 10, Figure 12, Figure 14) of metallic circuit 7.1, are then adopted With traditional SMT patch mode, with steel mesh by paste solder printing light-transmitting double-layer route back the corresponding weldering of metallic circuit 7.1 On disk, then leg is close to the rim of a cup side LED lamp bead 6.1 concordant with rim of a cup and is mounted onto the metallic circuit 7.1 at the back side (as schemed Shown in 8) or be LED light in the attachment to the metallic circuit 7.1 at the back side of LED lamp bead 6.2 for wrap leg bending rim of a cup Pearl 6.2 shines towards face-key 7.5 luminous (as shown in Figure 10, Figure 14) or is to roll over leg backwards to rim of a cup at rim of a cup It is curved, the attachment of LED lamp bead 6.3 of wing leg is formed to (as shown in figure 12) on the metallic circuit 7.1 at the back side, crosses Reflow Soldering Welding is fabricated to the LED keyboard lines template die group that the lamp bead weldering back side but shines towards face-key position；

Alternatively, double-layered circuit board be it is lighttight, the Flexible copper-clad plate of two-sided copper foil is made of traditional wiring board Technique after etching double-sided circuit, positive by key mapping print silver paste or carbon slurry, overleaf prints welding resistance or be by single side After the Flexible copper-clad plate circuit etching of copper foil, assist side prints silver paste or carbon slurry without copper face, prints welding resistance in the circuit face for having copper, Be fabricated to front be metallic circuit and by key mapping silver paste perhaps carbon slurry circuit 7.3 or front be silver paste or carbon slurry 7.3, Centre is insulating layer 7.2a, and the back side is the double-layered circuit board of metallic circuit 7.1, and LED lamp bead is corresponded on double-layered circuit board and is shone Locate providing holes 7.4 for luminous double-layered circuit board (such as Fig. 9, Figure 11, figure to shine across hole 7.4 towards face-key position of LED lamp bead Shown in 13), then use traditional SMT patch mode, the metallic circuit with steel mesh by paste solder printing at the double-layered circuit board back side On 7.1 corresponding pads, then the metal at leg abutting rim of a cup side LED lamp bead 6.1 attachment to the back side concordant with rim of a cup is electric On road 7.1, the luminous place of LED lamp bead 6.1 shines (as shown in Figure 9) against hole 7.4 towards face-key position or is by leg Bending wraps the attachment of LED lamp bead 6.2 of rim of a cup on the metallic circuit 7.1 at the back side, and the luminous place of LED lamp bead 6.2 is against hole 7.4 towards face-key position shine (as shown in figure 13) or be by leg at rim of a cup backwards rim of a cup bending, formed wing The attachment of LED lamp bead 6.3 of leg is on the metallic circuit 7.1 at the back side, and the luminous place of LED lamp bead 6.2 is against hole 7.4 towards front It shines (as shown in figure 13) by key mapping, crosses Reflow Soldering welding, be fabricated to the LED key that the lamp bead weldering back side but shines towards face-key position Disk route template die group.

A kind of specific embodiment of LED illuminated keyboard route template die group carries out the utility model in conjunction with attached drawing above Detailed description.It will be understood by those skilled in the art, however, that the above is merely illustrative and describes some specific realities Mode is applied, to the scope of the utility model, especially the scope of the claims, and does not have any restrictions.

Claims (2)

1. a kind of LED illuminated keyboard route template die group, comprising:

LED lamp bead；

The wiring board of odt circuit；

It is characterized in that, on the one hand the resin material that the LED lamp bead is injection molding forms cup, fixed positive and negative anodes are on the other hand played Sheet metal circuit, sheet metal circuit expose in the positive and negative anodes of bottom of a cup, are used for packaging LED chips, positive and negative anodes sheet metal circuit is in cup Outside towards the bending of rim of a cup direction, be formed close to the leg of rim of a cup, leg wraps rim of a cup or leg be close to rim of a cup side and Rim of a cup is concordant or exceeds rim of a cup or leg at rim of a cup backwards to rim of a cup bending, and formation is wing leg, manufactured LED The leg of patch support is adjacent to rim of a cup or close to rim of a cup, chip is fixed on the metal in bottom of a cup and and cup all in rim of a cup face Positive and negative anodes metal connection in bottom is connected, and has encapsulation mucilage sealing to live chip in cup；

The wiring board of the odt circuit is that front is silver paste or carbon slurry circuit or is that metallic circuit is printing silver by key mapping Slurry or carbon slurry, back-side circuit is the metallic circuit of soldered elements, and wiring board intermediate insulating layer is the material of light transmission and/or is Unthreaded hole；

LED lamp bead is welded on the wiring board of odt circuit, and lamp base is soldered on wiring board backside pads at rim of a cup, and lamp bead issues Light pass through wiring board and issued from the face-key position of wiring board, wiring board is that translucent material either has a hole at the lamp bead place of shining It is passed through for light.

2. a kind of LED illuminated keyboard route template die group according to claim 1, which is characterized in that the weldering of the LED lamp bead Foot quantity is more than or equal to 2 and is less than or equal to 10.