CN203217891U

CN203217891U - Outdoor LED (light-emitting diode) display screen with fine heat dissipation effect

Info

Publication number: CN203217891U
Application number: CN 201320168436
Authority: CN
Inventors: 徐望飞
Original assignee: HUBEI AISAN PHOTOELECTRIC CO Ltd
Current assignee: HUBEI AISAN PHOTOELECTRIC CO Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-09-25
Anticipated expiration: 2023-04-02

Abstract

The utility model provides an outdoor LED (light-emitting diode) display screen with a fine heat dissipation effect. The outdoor LED display screen comprises a bottom shell and a front cover, the top of the bottom shell is open, the open end of the bottom shell is covered by the front cover, a PCB (printed circuit board) is arranged between the bottom shell and the front cover and in the bottom shell, a plurality of LED bulbs are arranged on the PCB, a power supply is arranged at the back of the PCB, a power wire is connected with the power supply and led out of the bottom shell, a plurality of mounting posts for supporting and the fixing the PCB are arranged on the inner wall of the bottom of the bottom shell, a plurality of hollow ventilating pipes vertically penetrating the front cover are arranged on the inner wall of the bottom of the bottom shell, and a plurality of ventilating holes are formed in the side walls of the ventilating pipes. The outdoor LED display screen with the fine heat dissipation effect is simple and practical in structure, the ventilating pipes and the ventilating holes are formed inside the display screen, so that air flow inside the display screen is enhanced, heat generated in operation of the display screen can be dissipated as soon as possible, and the service life of the display screen is prolonged.

Description

A kind of outdoor LED display of good heat dissipation effect

Technical field

The utility model relates to a kind of LED display, especially a kind of outdoor use LED display with great heat radiation effect.

Background technology

LED is the abbreviation of light emitting diode, is a kind of solid matter that can convert electrical energy into luminous energy, because its advantages of energy saving and environmental protection has the trend that replaces conventional light source gradually at present.LED display is an important application of LED lighting engineering, is widely used in occasions such as square, outdoor, large-scale activity center at present.The outdoor LED display of using at present shows module, and majority is that the pcb board behind the plug-in mounting connection LED luminotron places in the glue shell, carries out sealant pouring and sealing from the pcb board outside surface, to reach waterproof action.But the display screen module can produce a large amount of heats, and these heats are from the heat of LED self and driving circuit generation, and heat is too high then can to cause many adverse influences to LED and circuit component.Present cooling for outdoor LED display, only be confined to add forced ventilation at the backside space of pcb board, but this intelligence reduces the local temperature of PCB backside space, can not reduce the LED luminotron heat of local space on every side, heat dissipation problem still exists, and has limited the application of LED display.

The utility model content

The utility model namely is the shortcoming at the existing radiating effect difference of present outdoor LED display, designs and produces a kind of LED display with great heat radiation effect.

Specifically, the outdoor LED display of good heat dissipation effect described in the utility model, comprise the uncovered drain pan of end face and the face shield that covers the drain pan opening end, between drain pan and face shield, be provided with the PCB circuit board in the drain pan, the PCB circuit board is provided with a plurality of LED lamp pearls, the PDB back of circuit board is provided with power supply, power lead connects power supply and leads to outside the drain pan, the bottom surface inwall of drain pan is provided with several for supporting and the fixing erection column of PCB circuit board, be provided with several ventilation ducts that vertically pass the hollow of face shield at the bottom surface of drain pan inwall, have several air vents on the sidewall of ventilation duct.

The setting of air vent can strengthen flowing of drain pan inner space air.

Further, the vent locations of offering on the described different ventilation ducts is relative, like this circulation of air and better heat-radiation effect.

Further, the bottom surface of described drain pan has bottom outlet, and power lead is passed by bottom outlet, and the setting of bottom outlet can also give drain pan the inner air permeability that increases except the turnover that makes things convenient for power lead, accelerates flowing and heat radiation of air.

Further, described face shield is with the drain pan clamping or be threaded.

Further, described erection column and PCB circuit board pass through bolt.

Further, described face shield is that transparent material is made.

The outdoor LED display of good heat dissipation effect described in the utility model, simple and practical, by in display screen inside ventilation duct and air vent being set, the air that strengthens display screen inside flows, the heat that makes display screen when work produce can exhale as soon as possible, prolongs display screen serviceable life.

Description of drawings

Fig. 1 is the inner structure diagrammatic cross-section of the utility model embodiment;

Wherein, 1 is that drain pan, 10 is that bottom outlet, 2 is that face shield, 3 is that PCB circuit board, 4 is that LED lamp pearl, 5 is that power supply, 6 is that power lead, 7 is that erection column, 8 is that bolt, 9 is that ventilation duct, 90 is air vent.

Embodiment

Below in conjunction with accompanying drawing, technical scheme described in the utility model is carried out nonrestrictive explanation, purpose is to be convenient to public understanding.

As shown in Figure 1, the outdoor LED display of good heat dissipation effect described in the utility model, comprise the uncovered drain pan of end face 1 and the face shield 2 that covers drain pan 1 opening end, face shield 2 is made for transparent material, face shield 2 is with drain pan 1 clamping or be threaded, between drain pan 1 and face shield 2, be provided with PCB circuit board 3 in the drain pan 1, PCB circuit board 3 is provided with a plurality of LED lamp pearls 4, PDB circuit board 3 back sides are provided with power supply 5, power lead 6 connects power supply 5 and leads to outside the drain pan 1, the described end, 1 bottom surface has bottom outlet 10, power lead 6 is passed by bottom outlet 10, the bottom surface inwall of drain pan 1 is provided with several for supporting and the fixing erection column 7 of PCB circuit board 3, bolt 8 passes PCB circuit board 3 and erection column 7 is fixed on PCB circuit board 3 on the erection column 7, be provided with several ventilation ducts 9 that vertically pass the hollow of face shield 2 at the bottom surface of drain pan 1 inwall, have several air vents 90 on the sidewall of ventilation duct 9, the setting of air vent, can strengthen flowing of drain pan inner space air, further, air vent 90 positions of offering on the described different ventilation duct 9 are relative, like this circulation of air and better heat-radiation effect.

Should be clear and definite be; described embodiment should not be construed as the restriction to technical solutions of the utility model; in fact; all improvement of described structure being carried out with identical or approximate principle; the shape, size, the used material that comprise the each several part structure; and the replacement of the increase and decrease of number and function similar elements, all within the utility model technical scheme required for protection.

Claims

1. the outdoor LED display of a good heat dissipation effect, it is characterized in that: comprise the uncovered drain pan of end face and the face shield that covers the drain pan opening end, between drain pan and face shield, be provided with the PCB circuit board in the drain pan, the PCB circuit board is provided with a plurality of LED lamp pearls, the PDB back of circuit board is provided with power supply, power lead connects power supply and leads to outside the drain pan, the bottom surface inwall of drain pan is provided with several for supporting and the fixing erection column of PCB circuit board, be provided with several ventilation ducts that vertically pass the hollow of face shield at the bottom surface of drain pan inwall, have several air vents on the sidewall of ventilation duct.

2. the outdoor LED display of good heat dissipation effect according to claim 1, it is characterized in that: the vent locations of offering on the described different ventilation ducts is relative.

3. the outdoor LED display of good heat dissipation effect according to claim 1 and 2, it is characterized in that: the bottom surface of described drain pan has bottom outlet, and power lead is passed by bottom outlet.

4. the outdoor LED display of good heat dissipation effect according to claim 1 and 2 is characterized in that: described face shield is with the drain pan clamping or be threaded.

5. the outdoor LED display of good heat dissipation effect according to claim 1 and 2, it is characterized in that: described erection column and PCB circuit board pass through bolt.

6. the outdoor LED display of good heat dissipation effect according to claim 1 and 2, it is characterized in that: described face shield is that transparent material is made.