CN203013163U

CN203013163U - LED nixie tube

Info

Publication number: CN203013163U
Application number: CN 201220614132
Authority: CN
Inventors: 林新忠
Original assignee: Xiamen Xiarom Electronics Co Ltd
Current assignee: Xiamen Xiarom Electronics Co Ltd
Priority date: 2012-11-20
Filing date: 2012-11-20
Publication date: 2013-06-19
Anticipated expiration: 2022-11-20

Abstract

The utility model relates to a nixie tube, in particular to a novel LED nixie tube, which includes a nixie tube case, a PCB (printed circuit board) assembled with the nixie tube case, an LED lamp and a corresponding metal pin plug-in both arranged on the PCB in a coordinated manner, wherein multiple hollow windows aligned to the LED lamp are arranged on the nixie tube case; a layer of light conducting film is applied onto the surface of each hollow window; when the nixie tube case and the PCB are fixed and closed, the LED lamp is just embedded in the hollow part of the nixie tube case; and soft silica gel is filled between the positive surface of the PCB and the nixie tube case for sealing. The LED nixie tube has the benefits that the LED nixie tube can display multiple colors, an encapsulated product is free from limitation of use area and use environment, and the novel LED nixie tube can be maintained and has high light intensity and uniformity.

Description

A kind of LED charactron

Technical field

The utility model relates to a kind of charactron, particularly a kind of Novel LED digital pipe.

Background technology

Traditional LED charactron is the protecting sheathing that adopts the PVC injection-compression molding, and will be at the inboard infusion epoxy resin of PVC shell and baking-curing at high temperature.In bake process, be easy to cause the PVC casing deformation and affect display effect, even cause a large amount of wasters.Also because want infusion epoxy resin through baking-curing and easily distortion in the pressure injection shell, therefore can not make the large-area chronoscope measuring device of outdoor indoor use.Secondly; the LED charactron is fixed on the LED wafer on pcb board with elargol; then welding internal lead and form being connected of PN junction on wafer and pcb board; infusion epoxy resin protects pcb board in the enclosure again; epoxy resin is glazy hard through the hot setting after image; in case just can't repair when charactron has bad phenomenon, increase the product maintenance cost.Again, charactron of traditional LED charactron can only show a kind of color, and colour brightness is not suitable for outdoor indoor remote the work and shows, more is not suitable for outdoor display device.At last, traditional LED charactron is done the pin welding with metal PIN pin, and this soldering reliability is not good in actual applications.And traditional LED charactron is because direct viewable portion is exactly the LED lamp, and the illumination effect of LED lamp is not good, easily causes the numeral generation of charactron dizzy, and does not see numeral.

The utility model content

Technical problem to be solved in the utility model is to provide and a kind ofly can shows multiple color, product after encapsulation be not subjected to usable floor area and environment for use restriction, can keep in repair and a kind of Novel LED digital pipe of the high high conformity of brightness, to solve the deficiency of prior art.

the technical scheme that the utility model adopts is, a kind of LED charactron, comprise: the charactron shell, PCB circuit board with the assembling of charactron shell, coordinate on the PCB circuit board and be provided with LED lamp and corresponding metal pins plug-in unit, described charactron shell is provided with the window of a plurality of hollow outs of aiming at the LED lamp, the surface of the window of hollow out is covered with one deck light guiding film, when charactron shell and PCB circuit board fixedly cover, described LED lamp just is embedded at the hollow out zone of the window of this charactron shell, seal by pouring into soft silica gel between described this PCB circuit board front and described charactron shell.

Further, described LED lamp is rectangular build, the lower end is provided with four pins, described LED lamp is color-changed LED light, described LED lamp is welded in pad hole corresponding on the PCB circuit board and welds thereon by these four pin plug-in units, seven described LED lamps are arranged in " a 8 " font, and the window that described charactron shell is provided with the hollow out of 7 segment length's bar shapeds also is arranged in " a 8 " font equally, and the light that the LED lamp sends penetrates by the lamp holder in described hollow out window.

Further, described PCB circuit board is SMD pad PCB circuit board, and its edge is provided with the SMD metal pad for the paster welding.

Further, described LED lamp is the three-primary color LED lamp.

Further, described light guiding film is printing opacity PC film.

the utility model is by adopting technique scheme, compared with prior art, have following advantage: the present invention adopts the charactron shell of the window that is provided with hollow out, with SMD pad PCB circuit board and the grafting of charactron shell assembling and be welded on a plurality of plug-in type three-primary color LED lamps on SMD pad PCB circuit board, the lamp holder size shape of three-primary color LED lamp is consistent with the window size shape of hollow out and can be adjacent to cooperation, and fill the protection that a small amount of soft silica gel makes circuit board and form novel three-primary color LED charactron, adopt simultaneously the light guiding film on the surface of the window be covered in hollow out to carry out effective transmission to the light of three-primary color LED lamp, thereby make whole LED charactron luminous evenly soft and can obtain high brightness.

The utility model three-primary color LED charactron has been cancelled traditional metal PIN pin and has been made pin, be set up SMD metal pad on evaporation and the substitute is in the PIN of PCB circuit board stitch location, when using, postorder just do not need plug-in unit, the substitute is and use the SMT welding technology, optimize welding technology and cancelled traditional manual plug-in unit process, improved soldering reliability and the production efficiency of charactron.

Description of drawings

Fig. 1 is exploded view of the present utility model;

Fig. 2 is the A section cut-open view after Fig. 1 assembles.

Embodiment

Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.

As a specific embodiment, as depicted in figs. 1 and 2, a kind of LED charactron of the present utility model comprises: the charactron shell 1 of rectangular build, with the SMD pad PCB circuit board 2 of charactron shell 1 assembling and peg graft and be welded on a plurality of plug-in type LED lamps 3 on SMD pad PCB circuit board.wherein, described LED lamp 3 is the three-primary color LED lamp, described charactron shell 1 is provided with the window 11 of hollow out, the surface of the window 11 of hollow out is covered with one deck light guiding film 4, described light guiding film 4 is printing opacity PC film, the window 11 of hollow out is shaped as rectangle, and there is the window 11 of 14 (can increase and decrease on demand) hollow outs to form figure or the numerical character that shows, form two (can increase and decrease on demand) figures and be the character of " 8 ", the rectangle that the lamp holder size shape of described three-primary color LED lamp 3 is consistent with window 11 size shape of hollow out and can be adjacent to and coordinate the lamp holder make three-primary color LED lamp 3 to fill the hollow out zone of the window 11 of digital pipe shell, seal 21 by pouring into soft silica gel between this SMD pad PCB circuit board positive 2 and described charactron shell 1.the lamp holder of described three-primary color LED lamp 3 is rectangular build, the lower end is provided with four pins 31, described three-primary color LED lamp 3 is color-changed LED lights, described three-primary color LED lamp 3 is plugged in pad hole corresponding on SMD pad PCB circuit board 2 and welds thereon by these four pins 31, on SMD pad PCB circuit board, pad hole and shell figure are " 8 " font, seven described three-primary color LED lamps 3 are arranged in " a 8 " font, the window 11 that described charactron shell is provided with the hollow out of 7 segment length's bar shapeds also is arranged in " a 8 " font equally, the light that three-primary color LED lamp 3 sends penetrates by the lamp holder in described hollow out window 11, and by printing opacity PC light guiding film 4, the light of three-primary color LED lamp 3 is carried out effective transmission, thereby make whole LED charactron luminous evenly soft and can obtain high brightness.

described SMD pad PCB circuit board 2 edges are provided with the SMD metal pad 22 for the paster welding, 14 (can increase and decrease on demand) SMD metal pads 22 are arranged on described PCB circuit board, 14 (can increase and decrease on demand) pads are divided into two groups, every group is positioned at two relative company edges on SMD pad PCB circuit board 2, during as demonstration " 33 ", on SMD pad PCB circuit board, the corresponding position gets the LED lamp and brightens, namely by the peripheral control circuit, each " 8 " certain stroke is not worked or certain color of three-primary color LED lamp entirely bright, can change simultaneously color (RGB can monochromatic brightly also can be mixed into white light), make the light that sends penetrate from window, and by printing opacity PC light guiding film 4, light is carried out effective transmission, thereby make whole LED charactron luminous evenly soft and can obtain high brightness.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.

Claims

1. LED charactron, it is characterized in that, comprise: the charactron shell, with the PCB circuit board of charactron shell assembling, PCB circuit board on coordinate and be provided with LED lamp and corresponding metal pins plug-in unit, described charactron shell is provided with the window of a plurality of hollow outs of aiming at the LED lamp, the surface of the window of hollow out is covered with one deck light guiding film, when charactron shell and PCB circuit board fixedly cover, described LED lamp just is embedded at the hollow out zone of the window of this charactron shell, seals by pouring into soft silica gel between described this PCB circuit board front and described charactron shell.

2. a kind of LED charactron according to claim 1, it is characterized in that: described LED lamp is rectangular build, the lower end is provided with four pins, described LED lamp is color-changed LED light, described LED lamp is welded in pad hole corresponding on the PCB circuit board and welds thereon by these four pin plug-in units, seven described LED lamps are arranged in " a 8 " font, the window that described charactron shell is provided with the hollow out of 7 segment length's bar shapeds also is arranged in " a 8 " font equally, and the light that the LED lamp sends penetrates by the lamp holder in described hollow out window.

3. a kind of Novel LED digital pipe as claimed in claim 1, it is characterized in that: described PCB circuit board is SMD pad PCB circuit board, its edge is provided with the SMD metal pad for the paster welding.

4. a kind of Novel LED digital pipe as claimed in claim 1 or 2, it is characterized in that: described LED lamp is the three-primary color LED lamp.

5. a kind of Novel LED digital pipe as claimed in claim 1 or 2, it is characterized in that: described light guiding film is printing opacity PC film.