CN201382309Y

CN201382309Y - LED lattice three-piece set

Info

Publication number: CN201382309Y
Application number: CN200920135744U
Authority: CN
Inventors: 于德海
Original assignee: Shenzhen Huahai Chengxin Electronic Display Technology Co Ltd
Current assignee: Shenzhen Huahai Chengxin Electronic Display Technology Co Ltd
Priority date: 2009-03-16
Filing date: 2009-03-16
Publication date: 2010-01-13
Anticipated expiration: 2019-03-16

Abstract

The utility model discloses an LED lattice three-piece set, which comprises a housing, a framework, a PCB board and at least one control device, wherein, the housing and the framework are similar to the shape of the PCB board, the housing comprises a housing main body and a housing cavity, the framework and the PCB board are arranged in the housing cavity, the framework is positioned between the housing and the PCB board, and the control device is arranged on the framework and used for controlling an LED lattice. The LED lattice three-piece set is provided with the special housing and the framework, a light transmitting hole is formed on the housing, the housing and the framework adopt the special combination way, and a water-proof plastic is arranged at the combined part of the light transmitting hole and an LED, thereby effectively achieving the purposes of water prevention and light shading, endowing a predominant essential feature, achieving the advantages of simplicity, beautiful appearance, convenient use, safety and reliability, and further obtaining better technical effects and economic benefits.

Description

A kind of LED dot matrix three external members

Technical field

The utility model relates to a kind of lighting device, relates in particular to a kind of LED dot matrix three external members.

Background technology

The LED screen has become the sign of urban information modernization construction as a kind of important means of information propagation.Along with socioeconomic continuous progress, and the LED Display Technique is constantly perfect, and people will more and more go deep into the understanding of LED display, and its application will be more and more wider.

In the existing LED dot matrix screen, great majority are that shell, framework, pcb board are wholely set, the three does not separate, maintenance, installation, the time very inconvenient, and it is bad at LED dot matrix screen waterproof effect and shaded effect, be very easy to short circuit or damage, in the process of using the LED dot matrix, brought inconvenience for the user.Therefore, there is defective in prior art, needs to improve.

The utility model content

The utility model provides a kind of LED dot matrix three external member bodies new technical scheme.

The technical solution of the utility model is as follows:

A kind of LED dot matrix three external members comprise shell, framework, a pcb board, at least one control device, and described shell, described framework are similar to the external form of described pcb board; Described shell comprises a housing main body and a cavity pocket of outer cover, and described framework, described pcb board are arranged in the described cavity pocket of outer cover, and described framework is located between described shell and the described pcb board, and wherein said control device is arranged on the framework, is used to control the LED dot matrix.

Described LED dot matrix three external members, one lamp decoration control device of at least one LED light emitting diode and this LED lumination of light emitting diode of control is set on the described pcb board, at least one cathode power supply circuit, at least one negative power supply circuit, at least one signal controlling circuit also are set on the described pcb board, are connected with a power cathode circuit by at least one signal controlling circuit, a positive source circuit between each LED light emitting diode.

Described LED dot matrix three external members, each LED light emitting diode forms a LED exiting surface in a side of described pcb board, is used for forming the LED screen.

Described LED dot matrix three external members, described shell comprises first side, second side, the 3rd side, four side, described first side is provided with one first reference column, the centre of described the 3rd side is provided with one second reference column, and described first reference column, the two combination of described second reference column are used for limiting described framework, described pcb board moves.

Described LED dot matrix three external members, be provided with on the described framework one the 3rd locating hole, the 4th locating hole, described the 3rd reference column and described three locating holes pairing use, described the 4th reference column and described the 4th locating hole pairing use are set on one the 3rd reference column, one the 4th reference column, the described pcb board, be used for fixing described pcb board position.

Described LED dot matrix three external members, described shell are provided with at least one first loophole, described framework is provided with at least one second loophole, and described second loophole to small part is arranged among described first loophole.

Adopt such scheme, the utility model is provided with loophole by special shell, framework and shell are set, the position of the special combination mode of shell and framework and loophole and described LED light-emitting diodes pipe jointing, be provided with the purpose that the waterproof plastic cement has effectively solved waterproof and shading, made it outstanding substantive distinguishing features; This LED dot matrix three external members are used, and not only reduce to take up room, reduce to connect loaded down with trivial details, minimizing cost input, have excellent waterproof and shading performance, and succinctly attractive in appearance, esy to use, safe and reliable, thereby obtain better technique effect and economic benefit.

Description of drawings

Fig. 1 is LED dot matrix three external member structural representations in the utility model;

Fig. 2 is shell and a LED light-emitting diodes pipe jointing schematic diagram in the utility model;

Fig. 3 is the utility model middle frame structural representation;

Fig. 4 is a pcb board schematic diagram in the utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

Embodiment 1

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model provides a kind of LED dot matrix three external members, comprises shell 1, framework 2, a pcb board 3 and at least one control device, and described shell 1, described framework 2 are similar to the external form of described pcb board 3; Described shell 1 comprises a housing main body and a cavity pocket of outer cover, described framework 2, described pcb board 3 are arranged in described shell 1 cavity, described framework 2 is located between described shell 1 and the described pcb board 3, and wherein said control device is arranged on the framework 2, is used to control the LED dot matrix.

Described LED dot matrix three external members, the luminous lamp decoration control device of this LED light emitting diode of at least one LED light emitting diode 18 and control 18 is set on the described pcb board 3, at least one cathode power supply circuit also is set on the described pcb board 3, at least one negative power supply circuit, at least one signal controlling circuit, between each LED light emitting diode by at least one signal controlling circuit, a positive source circuit is connected with a power cathode circuit, each LED light emitting diode 18 forms a LED exiting surface in a side of described pcb board 2, be used for forming LED dot matrix screen, described shell 1 comprises the first side, the second side, the 3rd side, four side, described first side is provided with one first reference column 4, the centre of described the 3rd side is provided with one second reference column 5, described first reference column 4, the two combination of 5 posts of described second location is used for limiting described framework 2, described pcb board 3 moves.

Be provided with on one the 3rd reference column 9, one the 4th reference column 10, the described pcb board 2 that one the 3rd locating hole 15, the 4th locating hole 16, described the 3rd reference column 9 use with 15 pairings of described three locating holes, described the 4th reference column 10 uses with 16 pairings of described the 4th locating hole being provided with on the described framework 2, be used for fixing described pcb board 3 positions.

Described LED dot matrix three external members, described shell are provided with at least one first loophole 8, described framework is provided with at least one second loophole 11, and described second loophole 11 to the small part is arranged among described first loophole 8.

Wherein be arranged on each power circuit on the pcb board 3, also can be set to comprise many cathode power supply circuits and many negative power supply circuits, each cathode power supply line is connected with external power supply respectively with each anode power cord, to guarantee the operate as normal of each LED light emitting diode 18 electronic devices and components such as grade in the pcb board 3; Be provided with align more, the negative power supply circuit can be connected with other electronic devices and components with LED light emitting diode 18 respectively, a certainly aligning, when the negative power supply circuit disconnects, do not influencing the operate as normal of other positive and negative electrode power circuits; Also can be with a pair of positive and negative electrode power circuit wherein as main power line, other positive and negative electrode power circuits are as the stand-by power supply line, power line has multiple assurance, makes when main power line disconnects, and does not influence the operate as normal of LED light emitting diode 18 and other electronic devices and components.In order to make in the present embodiment LED lamp bar simple in structure, usually, a cathode power supply circuit and a negative power supply circuit only are set.

Be provided with loophole at shell 1 with the position that LED light emitting diode 18 combines, the exiting surface of described LED light emitting diode is arranged in the loophole, for better waterproof, be provided with the waterproof plastic cement at the position of described loophole and described LED light-emitting diodes pipe jointing.

Because LED dot matrix three external members are easy to generate a large amount of heats, if a large amount of heats that produce can not in time shift, can damage electronic component, influence the luminous of light emitting diode 18.In order to overcome above problem, as shown in Figure 5, the 3rd side and the 4th side of each pcb board are provided with square hole 13, because the pcb board that is provided with height is the same, so the square hole 13 on each pcb board is almost at straight line, this square hole 13 not only can heat dissipation ventilation, can also be used to public passage.

According to being respectively arranged with discontinuous groove on described first side of the needs of different designs, described second side, described light emitting diode 18 is arranged in the groove of described pcb board.

Be provided with loophole at shell 1 with the position that the LED light emitting diode combines, the exiting surface of described LED light emitting diode is arranged in the loophole, for better waterproof, is provided with the waterproof plastic cement at the position of described loophole and described LED light-emitting diodes pipe jointing.

As shown in Figure 1, the utility model provides a kind of LED dot matrix three external members, the polylith pcb board 3, the polylith pcb board 3 that comprise a framework 2, shell 1, be installed on the framework 2 are arranged in parallel within the groove of framework 2, a plurality of LED light emitting diodes are arranged on the polylith pcb board 3, the LED light emitting diode specifically is meant LED light emitting diode 18 in the present embodiment

In framework 2 inside one control device 16 is set also; Two cathode power supply circuits, two negative power supply circuits and two signal lines, 7, one first sides, one second side, one the 3rd side and one the 4th side are set on the described pcb board 3;

The interior edge of described framework 2 is provided with groove, and the size of groove is provided with draw-in groove less times greater than the cross section of pcb board 3 in the groove, and a side in the cross section of pcb board 3 is provided with buckle, and draw-in groove and buckle pairing are used, and is used for fixing the screen that the described pcb board 3 of polylith forms.Framework 2 up and down wall all be lattice-shaped or mesh-shape, make the unimpeded convection current of air in the machine, be beneficial to the components and parts cooling.Fixture between the two adjacent pcb boards 3, with filtering each other light wave disturb, keep the definition and the stability of display screen, and increase the firm stable of LED screen.

Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.

Claims

1, a kind of LED dot matrix three external members is characterized in that, comprise shell, framework, a pcb board, at least one control device, and described shell, described framework are similar to the external form of described pcb board; Described shell comprises a housing main body and a cavity pocket of outer cover, and described framework, described pcb board are arranged in the described cavity pocket of outer cover, and described framework is located between described shell and the described pcb board, and wherein said control device is arranged on the framework, is used to control the LED dot matrix.

2, LED dot matrix three external members according to claim 1, it is characterized in that, one lamp decoration control device of at least one LED light emitting diode and this LED lumination of light emitting diode of control is set on the described pcb board, at least one cathode power supply circuit, at least one negative power supply circuit, at least one signal controlling circuit also are set on the described pcb board, are connected with a power cathode circuit by at least one signal controlling circuit, a positive source circuit between each LED light emitting diode.

3, LED dot matrix three external members according to claim 2 is characterized in that, each LED light emitting diode forms a LED exiting surface in a side of described pcb board, are used for forming the LED screen.

4, LED dot matrix three external members according to claim 1, it is characterized in that, described shell comprises first side, second side, the 3rd side, four side, described first side is provided with one first reference column, the centre of described the 3rd side is provided with one second reference column, and described first reference column, the two combination of described second reference column are used for limiting described framework, described pcb board moves.

5, LED dot matrix three external members according to claim 1, it is characterized in that, be provided with on the described framework one the 3rd locating hole, the 4th locating hole, described the 3rd reference column and described three locating holes pairing use, described the 4th reference column and described the 4th locating hole pairing use are set on one the 3rd reference column, one the 4th reference column, the described pcb board, be used for fixing described pcb board position.

6, LED dot matrix three external members according to claim 1 is characterized in that, described shell is provided with at least one first loophole, described framework is provided with at least one second loophole, and described second loophole to small part is arranged among described first loophole.