CN211475642U

CN211475642U - Heat radiation structure of LED explosion-proof lamp

Info

Publication number: CN211475642U
Application number: CN202020181088.2U
Authority: CN
Inventors: 吴卫华; 李玲; 汪玉平; 叶向霞; 陈伟民
Original assignee: Senben Lighting Co ltd
Current assignee: Senben Lighting Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-09-11
Anticipated expiration: 2030-02-18

Abstract

The utility model provides a heat radiation structure of explosion-proof lamps and lanterns of LED, terminal box, driver box, shell and explosion-proof cover that set gradually including top-down, wherein: the driver box is arranged on the inner side of the annular heat conduction cover plate, and the heat conduction cover plate is arranged on the top of the shell; the upper end face of the heat conduction cover plate is provided with a plurality of heat dissipation fins and a plurality of low-thermal-resistance convex strips, the plurality of low-thermal-resistance convex strips are arranged annularly and concentrically, and the plurality of heat dissipation fins are arranged on the low-thermal-resistance convex strips in a scattering manner by taking the driver box as a center; the lower end face of the heat conduction cover plate is provided with an annular circuit board, and a plurality of LED lamp beads are uniformly distributed at the position, corresponding to the low-thermal-resistance raised line, of the lower end face of the circuit board. The heat dissipation structure of the LED explosion-proof lamp can effectively and quickly transfer the heat generated by the LED lamp bead to the external environment of the lamp, scientifically solve the heat dissipation problem of the LED explosion-proof lamp and prolong the service life of the LED lamp; and its is rational in infrastructure, and heat dispersion is good, and the security is high.

Description

Heat radiation structure of LED explosion-proof lamp

Technical Field

The utility model relates to an illumination lamps and lanterns technical field especially relates to a heat radiation structure of explosion-proof lamps and lanterns of LED.

Background

The LED explosion-proof lamp is also called an LED explosion-proof lamp and an explosion-proof illuminating lamp, and is an illuminating lamp for explosive environment protected by an explosion-proof shell. The explosion-proof lamp is used in dangerous places where combustible gas and dust exist, can prevent electric arcs, sparks and high temperature which are possibly generated under the condition that electric equipment elements in a lamp explosion-proof cavity are in failure, ignite the combustible gas and dust permeated in the shell to produce explosion or combustion, and prevent the explosion and the combustion from spreading to the environment of the combustible gas and the dust outside the explosion-proof cavity. The explosion-proof lamp is mainly suitable for dangerous places of production, storage and transportation in industries such as petroleum, chemical industry, medicine, textile, wine brewing, military industry and the like.

The traditional LED explosion-proof lamp shell is formed by aluminum alloy die-casting and is processed by surface high-voltage electrostatic powder spraying. However, as is well known, light generates heat, the heat generated by the lamp beads is larger as the lighting time of the lamp is longer, the temperature in the explosion-proof cavity is also higher, and the aluminum alloy shell cannot meet the requirement of LED heat dissipation. And along with the continuous high temperature in the cavity, the LED power supply installed in the cavity drives to work in a high-temperature environment all the time, and is easy to damage, so that the light attenuation or damage of the lamp is caused, and the service life is influenced. Therefore, timely heat dissipation is very important for the LED explosion-proof lamp.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the heat dissipation structure of the LED explosion-proof lamp is provided.

The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:

the utility model provides a heat radiation structure of explosion-proof lamps and lanterns of LED, terminal box, driver box, shell and explosion-proof cover that set gradually including top-down, wherein: the driver box is arranged on the inner side of the annular heat conduction cover plate, and the heat conduction cover plate is arranged on the top of the shell; the upper end face of the heat conduction cover plate is provided with a plurality of heat dissipation fins and a plurality of low-thermal-resistance convex strips, the plurality of low-thermal-resistance convex strips are annularly and concentrically arranged, and the plurality of heat dissipation fins are arranged on the low-thermal-resistance convex strips in a scattering manner by taking the driver box as a center; the lower end face of the heat conduction cover plate is provided with an annular circuit board, and a plurality of LED lamp beads are uniformly distributed at positions, corresponding to the low-thermal-resistance convex strips, of the lower end face of the circuit board.

Furthermore, on the heat dissipation structure of the LED explosion-proof lamp, the plurality of heat dissipation fins and the heat conduction cover plate are vertically arranged or obliquely arranged at an angle of 55-75 degrees.

Furthermore, on the heat dissipation structure of the LED explosion-proof lamp, an annular connecting plate is arranged at the edge of the inner side of the heat conduction cover plate, and the heat conduction cover plate is in threaded connection with the inner wall of the driver box through the connecting plate.

Further, on the heat dissipation structure of the LED explosion-proof lamp, a driver is arranged in the driver box and electrically connected with the circuit board.

Further preferably, on the heat dissipation structure of the LED explosion-proof lamp, the driver is fixed to the top of the driver box by a first screw; the circuit board is fixed at the bottom of the heat-conducting cover plate through a second bolt.

Furthermore, on the heat dissipation structure of the LED explosion-proof lamp, the heat conduction cover plate and the low-thermal-resistance convex strips are made of aluminum or aluminum alloy materials.

Furthermore, on the heat dissipation structure of the LED explosion-proof lamp, the shell is of an open structure from top to bottom, and the lower end of the shell is in threaded connection with the explosion-proof cover.

Further, on the heat dissipation structure of the LED explosion-proof lamp, arc-shaped toughened glass is arranged at the bottom of the explosion-proof cover, and an explosion-proof film is arranged on the upper surface of the arc-shaped toughened glass.

Furthermore, on the heat dissipation structure of the LED explosion-proof lamp, the top of the junction box is provided with a wiring hole.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

the utility model provides a heat radiation structure of LED explosion-proof lamp, through setting up the circuit board in the bottom of heat conduction apron, and set up low thermal resistance sand grip and radiating fin on the surface of heat conduction apron, simultaneously through adopting the shell of the graphite alkene plastics material that heat conduction heat dispersion is excellent, can be effectively with LED lamp pearl produce heat quick transmission to the external environment of lamps and lanterns; in addition, the driver and the circuit board are respectively and independently arranged in different heat dissipation chambers, so that the influence of the heating heat of the driver on the LED lamp beads is prevented, the heat dissipation problem of the LED explosion-proof lamp is scientifically solved, and the service life of the LED lamp is prolonged; the heat dissipation structure of the LED explosion-proof lamp is reasonable in structure and good in heat dissipation performance, and the use safety of the LED lamp is guaranteed.

Drawings

Fig. 1 is a schematic perspective view of a heat dissipation structure of an LED explosion-proof lamp of the present invention;

fig. 2 is a schematic top view of a heat-conducting cover plate in a heat dissipation structure of an LED explosion-proof lamp of the present invention;

fig. 3 is a schematic cross-sectional structural view of a heat dissipation structure of an LED explosion-proof lamp of the present invention;

fig. 4 is a schematic view of a bottom view structure of a circuit board in a heat dissipation structure of an LED explosion-proof lamp of the present invention;

wherein the reference symbols are:

the LED lamp comprises a terminal box 1, a driver box 2, a wiring hole 3, a heat dissipation fin 4, a shell 5, a heat conduction cover plate 6, a low-thermal-resistance convex strip 7, an explosion-proof cover 8, a triangular fixing frame 9, a driver 10, a first screw 11, a connecting plate 12, a circuit board 13, a circuit board 14, an LED lamp bead 15, a second screw 16, arc-shaped toughened glass 17 and an explosion-proof film 17.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model provides a heat radiation structure of an explosion-proof LED lamp, which comprises a junction box 1, a driver box 2, a housing 5 and an explosion-proof cover 8, wherein the junction box, the driver box, the housing and the explosion-proof cover are arranged in sequence from top to bottom, wherein: the driver box 2 is arranged on the inner side of an annular heat-conducting cover plate 6, and the heat-conducting cover plate 6 is arranged on the top of the shell 5; the upper end surface of the heat conduction cover plate 6 is provided with a plurality of heat dissipation fins 4 and a plurality of low-thermal-resistance convex strips 7, the plurality of low-thermal-resistance convex strips 7 are arranged in an annular shape and in a concentric manner, and the plurality of heat dissipation fins 4 are arranged on the low-thermal-resistance convex strips 7 in a scattering manner by taking the driver box 2 as a center; the lower end face of the heat conduction cover plate 6 is provided with an annular circuit board 13, and a plurality of LED lamp beads 14 are uniformly distributed at the position, corresponding to the low-thermal-resistance convex strip 7, of the lower end face of the circuit board 13. This heat radiation structure of explosion-proof lamps and lanterns of LED through setting up circuit board 13 in the bottom of heat conduction apron 6 to set up low thermal resistance sand grip 7 and radiating fin 4 on heat conduction apron 6 surface, can effectively with LED lamp pearl production heat quick transmission to lamps and lanterns external environment in, solved the defect of traditional lighting lamp's high energy consumption and heat dissipation harmfully and casing oxidation, can effectively ensure LED light source life.

In the present embodiment, please refer to fig. 1, a plurality of the heat dissipation fins 4 and the heat conductive cover plate 6 are disposed vertically or inclined at an angle of 55-75 °. Preferably, as a preferred embodiment, a plurality of the heat dissipation fins 4 are vertically arranged with the heat conductive cover plate 6. As another preferred embodiment, a plurality of the heat dissipation fins 4 and the heat conductive cover plate 6 are arranged in an inclined manner at an angle, preferably at an angle of 60-70 °.

In this embodiment, please refer to fig. 3, an annular connecting plate 12 is disposed at an inner edge of the heat-conducting cover plate 6, and the heat-conducting cover plate 6 is screwed to the inner wall of the driver box 2 through the connecting plate 12. A driver 10 is arranged in the driver box 2, and the driver 10 is electrically connected with the circuit board 13.

In the present embodiment, please refer to fig. 3, the driver 10 is fixed on the top of the driver box 2 by a first screw 11; the circuit board 13 is fixed at the bottom of the heat conducting cover plate 6 through a second bolt 15. The driver box 2 and the shell 5 are made of graphene heat conduction plastic materials. By adopting the graphene plastic material with excellent heat conduction and heat dissipation performance to manufacture the driver box 2 and the shell 5, the heat generated by the LED lamp beads can be effectively and quickly transferred to the external environment of the lamp. As shown in fig. 3, in this heat radiation structure, wiring hole 3 has been seted up at terminal box 1 top, driver 10 is connected external power supply with the wire through this wiring hole 3, and driver 10 and circuit board 13 set up separately in the heat dissipation cavity of difference respectively, prevents that the driver from generating heat to the influence science of LED lamp pearl has solved the heat dissipation problem of LED explosion-proof lamp, has prolonged the life of LED lamps and lanterns.

In the present embodiment, please refer to fig. 3, wherein the heat conducting cover plate 6 and the low thermal resistance protruding strips 7 are made of aluminum or aluminum alloy, which has low thermal resistance, good thermal conductivity and low cost.

In the present embodiment, please refer to fig. 3 and 4, the housing 5 is in an open structure from top to bottom, and the lower end of the housing 5 is connected to the explosion-proof cover 8 by a screw. The bottom of the explosion-proof cover 8 is provided with arc-shaped toughened glass 16, and the upper surface of the arc-shaped toughened glass 16 is provided with an explosion-proof film 17.

The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. The utility model provides a heat radiation structure of explosion-proof lamps and lanterns of LED, its characterized in that includes terminal box (1), driver box (2), shell (5) and explosion-proof cover (8) that top-down set gradually, wherein: the driver box (2) is arranged on the inner side of an annular heat-conducting cover plate (6), and the heat-conducting cover plate (6) is arranged on the top of the shell (5); the upper end face of the heat conduction cover plate (6) is provided with a plurality of heat dissipation fins (4) and a plurality of low-thermal-resistance convex strips (7), the plurality of low-thermal-resistance convex strips (7) are arranged annularly and concentrically, and the plurality of heat dissipation fins (4) are arranged on the low-thermal-resistance convex strips (7) in a scattering manner by taking the driver box (2) as a center; the lower end face of the heat conduction cover plate (6) is provided with an annular circuit board (13), and a plurality of LED lamp beads (14) are uniformly distributed at the position, corresponding to the low-thermal-resistance convex strip (7), of the lower end face of the circuit board (13).

2. The heat dissipation structure of the LED explosion-proof lamp as claimed in claim 1, wherein a plurality of the heat dissipation fins (4) are arranged vertically or inclined at an angle of 55-75 ° with the heat conductive cover plate (6).

3. The heat dissipation structure of the LED explosion-proof lamp as claimed in claim 1, wherein an annular connecting plate (12) is arranged at the inner edge of the heat conduction cover plate (6), and the heat conduction cover plate (6) is in threaded connection with the inner wall of the driver box (2) through the connecting plate (12).

4. The heat dissipation structure of an LED explosion-proof lamp as recited in claim 1, wherein a driver (10) is disposed in the driver box (2), and the driver (10) is electrically connected to the circuit board (13).

5. The heat dissipation structure of the LED explosion-proof lamp as recited in claim 4, wherein the driver (10) is fixed on the top of the driver box (2) through a first screw (11); the circuit board (13) is fixed at the bottom of the heat-conducting cover plate (6) through a second bolt (15).

6. The heat dissipation structure of the LED explosion-proof lamp as claimed in claim 1, wherein the heat conductive cover plate (6) and the low thermal resistance ribs (7) are made of aluminum or aluminum alloy.

7. The heat dissipation structure of the LED explosion-proof lamp as recited in claim 1, wherein the housing (5) is of an open structure from top to bottom, and the lower end of the housing (5) is in threaded connection with the explosion-proof cover (8).

8. The heat dissipation structure of the LED explosion-proof lamp as claimed in claim 1, wherein the bottom of the explosion-proof cover (8) is provided with arc-shaped tempered glass (16), and the upper surface of the arc-shaped tempered glass (16) is provided with an explosion-proof membrane (17).

9. The heat dissipation structure of the LED explosion-proof lamp as claimed in claim 1, wherein the junction box (1) is provided with a wiring hole (3) at the top.