CN205487155U

CN205487155U - Full -color charactron of jumbo size low -voltage

Info

Publication number: CN205487155U
Application number: CN201620025487.3U
Authority: CN
Inventors: 孙焕挺
Original assignee: BENGLIU ELECTRONIC Co LTD SHANGHAI
Current assignee: BENGLIU ELECTRONIC Co LTD SHANGHAI
Priority date: 2016-01-11
Filing date: 2016-01-11
Publication date: 2016-08-17
Anticipated expiration: 2026-01-11

Abstract

The utility model discloses a full -color charactron of jumbo size low -voltage, including charactron main part, PCB base plate and plastic casing, the charactron main part is " 8 " font charactron of compriseing 7 pen sections, and each section is formed by the PMMA glass body, a RGB tri coloured lantern pearl and supporting PCB base plate, and the inboard of the PMMA glass body is provided with the U -shaped groove, and RGB tri coloured lantern pearl is installed to the U -shaped inslot, and U -shaped groove both sides set up the plane and are used for installing PCB base plate, RGB tri coloured lantern pearl and PCB base plate electrically connected, PMMA glass body bottom surface sets up protruding reflection of light point and white reflective membrane, openly is close to the position of RGB tri coloured lantern pearl and posts the photomask, and the side is provided with reflection of light silver lustre dragon ply all around, the charactron main part is connected at the dorsal external circuit PCB board of plastic casing with installing, the utility model discloses the color development of LED lamp pearl is effectual, the wiring is simple, be convenient for maintain and change, reduce the maintenance cost, require to hang down to power supply voltage, it is battery powered to be fit for the adoption, and safe convenient, market prospect is wide.

Description

A kind of full-color charactron of large scale low-voltage

Technical field

This utility model relates to LED lamp tube field, specifically a kind of full-color charactron of large scale low-voltage.

Background technology

Seven segment digital tubes refers to use a, b, c, d, e, f, g (h is arithmetic point) seven pen sections to show a digital a kind of display device, there is the advantages such as display is attractive in appearance, brightness is high, temperature scope is wide, be widely used in the various occasion needing numerical monitor；The undersized application of charactron such as electronic scale, electronic clock, various digital watch, instrument and meter etc., the application of large scale charactron is such as the clock display in market, the electronic board on production line, the mark of Anticipating replying device for knowledge competition, clock display, football, Basketball Match timing, score indicator etc.；The size of individual character charactron has a variety of specification from 0.36 inch up to 12 inches；The composition of conventional digital pipe mainly by: cabinet, LED lamp bead, wiring board, stitch etc. are constituted, production technology is: first LED lamp bead is fixed on wiring board, then routing, dress stitch, test, it is cemented in the middle of cabinet with epoxy resin again, being put in baking oven shipment after solidifying 8 hours again, the LED lamp bead of conventional digital pipe is all to use front light emitting species；One pen section (such as a section) of small size charactron (0.36 0.56 inches), is typically made up of a LEDs lamp bead, can be by the direct voltage drive of 2-3V；The pen section of the charactron of 0.8 inch then uses 2 LED lamp pearls to be composed in series, and can drive with 3-5V voltage；The single pen section of the charactron of 2.3 inches, then be composed in series by single 4 LED lamp pearls, and the charactron of 4 inches is then gone here and there totally 8 lamp bead by 2 rows 4 and formed, and the number of 2.3 cun and 4 inches is it is generally required to drive with the voltage of 8-12V；The single pen section of the charactron of conventional 8 inches, then use 2 rows 11 to go here and there totally 22 LEDs lamp bead composition, need could drive with the voltage of more than 22V.The large scale charactron of more than 2.3 cun is due to plurality of LEDs lamp bead of having connected, therefore needs higher driving voltage just can light charactron, is using battery powered occasion to use, and powerup issue just compares and is difficult to resolve certainly；Owing to have employed the circuit connecting mode of series connection, and the method using epoxy resin encapsulated, when when wherein a LEDs lamp bead breaks down of certain section of conventional digital pipe, may result in whole pen section and does not works, cause whole charactron to scrap, have no idea to repair at all；And owing to the lamp bead of employing is many, it is connected in parallel electric current too greatly, market is the large scale digital tube product not using parallel way；The large scale charactron of traditional handicraft, due to the mode of commonly used many lamp bead series connection, also exists the shortcomings such as driving voltage is high, electric current is big, cost is high, fault rate is high.Owing to using a lot of LED lamp bead string connection, if full color effect to be realized, one pen section is accomplished by tens LED lamp bead string Parallel Designs, whole charactron needs hundreds of LED lamp pearl series and parallel, complex circuit, and power consumption is big, produce yield the lowest, therefore be the seven segment digital tubes product-feed not having large scale full-color in the market, need the full-color charactron of large scale low-voltage developing a easy installation and maintenance, simple in construction, low-voltage power supply badly, to fill a hole in the market.

Utility model content

The purpose of this utility model is to provide the full-color charactron of large scale low-voltage of a kind of easy installation and maintenance, simple in construction, low-voltage power supply, with the problem solving to propose in above-mentioned background technology.

For achieving the above object, the following technical scheme of this utility model offer:

A kind of full-color charactron of large scale low-voltage, including charactron main body, PCB substrate and cabinet, described charactron main body includes a pen section, b pen section, c pen section, d pen section, e pen section, f pen section and g pen section, 7 pen section one figure of eight charactrons of composition；Each section is formed by PMMA vitreous body, a trichroism lamp bead of R/G/B and supporting PCB substrate, the Vitrea inner side of PMMA is provided with U-lag, R/G/B trichroism lamp bead is installed in U-lag, U-lag both sides are each provided with the sinking plane of an a height of 1.2mm for installing PCB substrate, and the trichroism lamp bead of R/G/B electrically connects with PCB substrate；Described PMMA vitreous body inner bottom surface is provided with multiple protruding reflective spot, PMMA posts white reflection film in Vitrea bottom surface, photomask is posted near the position of the trichroism lamp bead of R/G/B in the Vitrea front of PMMA, and PMMA Vitrea side surrounding is provided with reflective silver lustre dragon ply of paper；Described charactron main body is welded on cabinet by welding golden finger, and the bottom of cabinet is provided with the grab realizing being connected with external circuit pcb board.

As further program of the utility model: be additionally provided with one in described charactron main body for the circular point shape charactron representing arithmetic point.

As this utility model further scheme: the Vitrea thickness of described PMMA is 5mm.

As this utility model further scheme: the front of described cabinet is provided with arithmetic point luminescence window.

As this utility model further scheme: in described charactron main body, the trichroism lamp bead of R/G/B of each section uses common-anode or the common cathode mode of connection to connect.

As the present invention further scheme: the Vitrea size of described PMMA and the size fit of charactron main body；When the size of charactron main body is 4 cun, in single pen section, the trichroism lamp bead of R/G/B is set to 1；When the size of charactron main body increases, the number of the trichroism lamp bead of R/G/B increases with identical multiple.

Compared with prior art, the beneficial effects of the utility model are: this utility model uses optical transition principle, the trichroism lamp bead of R/G/B producing light source is arranged in the U-lag of PMMA vitreous body side, light source enters PMMA vitreous body through horizontal direction, by the conduction to light of the PMMA vitreous body, again by the protruding reflective spot arranged bottom PMMA vitreous body, the light of horizontal direction is converted into the light of vertical direction, use " face shows " principle, thus obtain enough brightness at this utility model frontal, show uniform LED display effect；Based on only installing the trichroism lamp bead of red, green, blue in above-mentioned display mode, each charactron of the present utility model, wiring is simple, also can be shown by the trichroism multiple color that freely forms, and color display effect is good；In this utility model, each section of charactron is fabricated separately, then assembly is in a plastic housing, it is simple to maintenance is changed, and reduces maintenance cost；Due in the charactron of each section only with 1 LED lamp bead, therefore supply voltage only needs 3V, solving large scale charactron in prior art needs High Voltage Power Supply, it is difficult to make battery-powered problem, the Mobile solution making charactron becomes simple, wide market.

Accompanying drawing explanation

Fig. 1 is the side view of a pen section in this utility model.

Fig. 2 is the structural representation of charactron main body of the present utility model.

Fig. 3 is the structural representation of a pen section in this utility model.

Fig. 4 is the front view of this utility model shell portions.

Fig. 5 is the side view of this utility model shell portions.

Fig. 6 is the dorsal view of this utility model shell portions.

Fig. 7 is the circuit theory diagrams that this utility model uses common-anode connection.

Fig. 8 is the circuit theory diagrams that this utility model uses common cathode connection.

Wherein, 1-a pen section；2-b pen section；3-c pen section；4-d pen section；5-e pen section；6-f pen section；7-g pen section；8-charactron main body；9-PMMA vitreous body；The trichroism lamp bead of 10-R/G/B；11-U shape groove；12-projection reflective spot；13-sinking plane；14-PCB substrate；15-reflective silver lustre dragon ply of paper；16-white reflection film；17-photomask；18-welding golden finger；19-cabinet；20-arithmetic point luminescence window；22-grab.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.

Refer to Fig. 1-6, a kind of full-color charactron of large scale low-voltage, including charactron main body 8, PCB substrate 14 and cabinet 19, described charactron main body 8 includes a pen section 1, b pen section 2, c pen section 3, d pen section 4, e pen section 5, f pen section 6 and g pen section 7,7 pen section one figure of eight charactrons of composition, described charactron main body 8 are additionally provided with one for the circular point shape charactron representing arithmetic point；Each section is formed by 9, trichroism lamp bead of R/G/B 10 of PMMA vitreous body and supporting PCB substrate 14, the thickness of PMMA vitreous body 9 is 5mm, the inner side of PMMA vitreous body 9 is provided with U-lag 11, the trichroism lamp bead of R/G/B 10 is installed in U-lag 11, U-lag 11 both sides are each provided with the sinking plane 13 of a high 1.2mm for installing PCB substrate 14, and the trichroism lamp bead of R/G/B 10 electrically connects with PCB substrate 14；Described PMMA vitreous body 9 inner bottom surface is provided with multiple protruding reflective spot 12, white reflection film 16 is posted in the bottom surface of PMMA vitreous body 9, photomask 17 is posted near the position of the trichroism lamp bead of R/G/B 10 in the front of PMMA vitreous body 9, and the side surrounding of PMMA vitreous body 9 is provided with reflective silver lustre dragon ply of paper 15；Described charactron main body 8 is welded on cabinet 19 by welding golden finger 18, and the front of cabinet 19 is provided with arithmetic point luminescence window 20, and the bottom of cabinet 19 is provided with the grab 22 realizing being connected with external circuit pcb board.

The Vitrea size of described PMMA and the size fit of charactron main body；When the size of charactron main body is 4 cun, in single pen section, the trichroism lamp bead of R/G/B is set to 1；When the size of charactron main body is 8 cun, in single pen section, the trichroism lamp bead of R/G/B is set to 2；When the size of charactron main body increases, the number of the trichroism lamp bead of R/G/B increases with identical multiple.

Refer to accompanying drawing 7-8, in described charactron main body 8, the trichroism lamp bead of R/G/B 10 of each section uses common-anode or the common cathode mode of connection to connect, in accompanying drawing 7 and accompanying drawing 8, A, B, C, D, E, F, G, H are respectively the trichroism lamp bead of R/G/B 10 in a pen section～these seven pen sections of g pen section and the circular point shape charactron representing arithmetic point；Additionally in this utility model, the trichroism lamp bead of R/G/B 10 and the connected mode of PCB substrate 14 and other circuit connecting modes are known prior art, repeat the most in this article.

Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, it is also possible to various changes can be made on the premise of without departing from this patent objective.

Claims

1. the full-color charactron of large scale low-voltage, including charactron main body (8), PCB substrate (14) and cabinet (19), it is characterized in that: described charactron main body (8) includes a pen section (1), b pen section (2), c pen section (3), d pen section (4), e pen section (5), f pen section (6) and g pen section (7), 7 pen section one figure of eight charactrons of composition；Each section is formed by PMMA vitreous body (9), the trichroism lamp bead of a R/G/B (10) and supporting PCB substrate (14), the inner side of PMMA vitreous body (9) is provided with U-lag (11), the trichroism lamp bead of R/G/B (10) is installed in U-lag (11), U-lag (11) both sides are each provided with the sinking plane (13) of an a height of 1.2mm and are used for installing PCB substrate (14), and the trichroism lamp bead of R/G/B (10) electrically connects with PCB substrate (14)；Described PMMA vitreous body (9) inner bottom surface is provided with multiple protruding reflective spot (12), described charactron main body (8) is welded on cabinet (19) by welding golden finger (18), and the bottom of cabinet (19) is provided with the grab (22) realizing being connected with external circuit pcb board.

The full-color charactron of large scale low-voltage the most according to claim 1, it is characterised in that be additionally provided with one on described charactron main body (8) for the circular point shape charactron representing arithmetic point.

The full-color charactron of large scale low-voltage the most according to claim 1, it is characterised in that the thickness of described PMMA vitreous body (9) is 5mm.

The full-color charactron of large scale low-voltage the most according to claim 2, it is characterised in that the front of described cabinet (19) is provided with arithmetic point luminescence window (20).

The full-color charactron of large scale low-voltage the most according to claim 1, it is characterised in that in described charactron main body (8), the trichroism lamp bead of the R/G/B (10) of each section uses common-anode or the common cathode mode of connection to connect.

The full-color charactron of large scale low-voltage the most according to claim 1, it is characterized in that, white reflection film (16) is posted in the bottom surface of described PMMA vitreous body (9), photomask (17) is posted in the front of PMMA vitreous body (9) near the position of the trichroism lamp bead of R/G/B (10), and the side surrounding of PMMA vitreous body (9) is provided with reflective silver lustre dragon ply of paper (15).