CN219433204U - IIC-level explosion-proof light source module - Google Patents

Abstract

The utility model discloses an IIC-level explosion-proof light source module, and belongs to the technical field of explosion-proof light sources. The light source circuit board is attached and fixed on the radiator, a plurality of LED light sources are arranged on the light source circuit board, the lead penetrates through the radiator through the lead-in device and is connected with the light source circuit board, the LED light sources are arranged opposite to the lens, the lens is located on the connecting plate, the connecting plate is fixedly connected with the light source circuit board, the lampshade is fixed on the pressing ring, and the pressing ring is fixed on the radiator to form a plurality of explosion-proof light source cavities. The beneficial effects of the utility model are as follows: on the premise of meeting the new version of explosion-proof standard of GB/T3836.2-2021, the limitation of the IIC-level explosion-proof cavity on the shape of the explosion-proof lamp radiator is broken through, the advantages of the modularized structural design are fully exerted, different mounting accessories are combined, and the same explosion-proof light source assembly is utilized to process various types of explosion-proof lighting products such as explosion-proof floodlights, explosion-proof street lamps and the like.

Description

IIC-level explosion-proof light source module

Technical Field

The utility model relates to an IIC-level explosion-proof light source module, and belongs to the technical field of explosion-proof light sources.

Background

In the fields of petrochemical industry, dangerous chemicals storage, medical pharmacy, grain and oil processing and storage, wine brewing and food fermentation, cloth printing and dyeing and graphic printing, ships and maritime work platforms, metal processing and surface treatment, coal mines and the like, explosive gas or dust can occur and gather in the environment, and the lighting equipment used in the fields must have explosion-proof performance, namely an explosion-proof lamp. Namely: lighting devices such as lighting fixtures and emergency lighting fixtures used in the above-described environments must have explosion-proof properties.

The explosion protection of the electrical product means that by one or more technical means such as structural design, circuit design, device selection or special process, the combustible gas or dust in the air cannot be ignited when the electrical equipment normally operates or fails, and the explosion of the dangerous environment is not caused.

With the development of industry technology, the international explosion-proof standard IEC60079 is continuously updated, especially in recent years, aiming at serious safety accidents caused by explosive dangerous environments and typical cases of explosion-proof electric products losing and losing, some key terms of the international explosion-proof standard update have great influence on the explosion-proof electric industry, and an originally allowed typical solution is an object of strict prohibition of new standards.

With the continuous update of the international standard, especially the change of some key terms, the national explosion-proof standard GB3836 is changed again in 11 years after the full plate change in 2010: GB/T3836-2021 series explosion protection standard is issued on 10/11/2021 and formally implemented on 5/1/2022.

GB/T3836.1-2021 section 1 explosive Environment: the general requirements for equipment further sub-categorizes class II equipment according to the characteristics of the explosive gas environment in which it is intended to be used: class IIA, a representative gas being propane; class IIB, a representative gas is ethylene; class IIC, representative gases are hydrogen and acetylene. From the point of view of the inflammable and explosive degree and the energy released by the full combustion per unit volume, IIC > IIB > IIA, therefore, the technical requirements are still satisfied in the order from high to low, namely: products that reach IIC class can cover conditions of use for IIB and IIA class devices. Therefore, in order to improve the efficiency value and market coverage of the product, the manufacturing enterprises in the explosion-proof electrical industry simplify the product types, and many development and design targets of the product can pursue the IIC explosion-proof level. Of course, the product reaching the IIC explosion-proof grade can easily meet the requirement of IIIC explosion-proof grade in explosive dust environment. Thereby gaining more market opportunities.

The explosion-proof type "d" is the explosion-proof technical means which has the earliest development and the most extensive application in the explosion-proof electric field. The additional requirement of the 'annex J' added in GB/T3836.2-2021 on the bonding joint surface has particularly significant influence on the explosion-proof lighting product: GB3836.2-2010 allows a square explosion-proof light source cavity to reach IIC explosion-proof level through a bonding joint surface between toughened glass and an aluminum radiator, and annex J almost pertinently blocks the last channel of the square explosion-proof cavity reaching IIC level explosion-proof. The square explosion-proof projection lamp, floodlight and explosion-proof street lamp with the quantity of more than 90% in the industry can not meet the IIC level explosion-proof requirement, and the active degradation to IIB level explosion-proof is not allowed by the standard, and the mould and certificate corresponding to the product are thoroughly abandoned by the new standard, so that the market value is thoroughly lost.

Industry has developed so far that the class IIC flameproof cavity is locked to both structures, namely, a spigot-type flameproof surface (cylinder) and a thread-type flameproof surface, so that the class IIC flameproof cavity is basically in two shapes, namely, a circular shape and a regular polygon shape (utilizing an inscribed circle thereof).

Disclosure of Invention

In order to solve the defects in the prior art, the utility model aims to provide the IIC level explosion-proof light source module, which breaks through the limitation of the IIC level explosion-proof cavity on the shape of the radiator of the explosion-proof lamp on the premise of meeting the new version explosion-proof standard, and is more beneficial to realizing the modularized structural design.

The technical scheme of the utility model is as follows: the IIC level explosion-proof light source module is characterized in that a light source circuit board is attached and fixed on a radiator, a plurality of LED light sources are arranged on the light source circuit board, a wire penetrates through the radiator through an introduction device and is connected with the light source circuit board, the LED light sources are oppositely arranged with a lens, the lens is located on a connecting plate, the connecting plate is fixedly connected with the light source circuit board, a lampshade is fixed on a pressing ring, and the pressing ring is fixed on the radiator to form a plurality of explosion-proof light source cavities.

The light source circuit board and the connecting plate are fixed on the light source circuit board through the penetrating screw a.

The pressing ring is fixed on the radiator through a screw b.

The pressing ring is provided with an adhesive groove, adhesive is applied in the adhesive groove, the periphery of the lampshade is adhered to the adhesive groove, the outer side Zhou Yajie of the lampshade is provided with a plurality of pressing plates, and the pressing plates are fixed on the pressing ring through screws c.

The introducing device is a packing sealing device or an explosion-proof packing box or a compression nut.

The pressing ring is connected with the radiator through explosion-proof threads.

An explosion-proof spigot is arranged on the pressing ring, and a spigot explosion-proof joint surface is formed between the pressing ring and the radiator.

The lampshade is made of transparent or milky toughened glass or polycarbonate.

Screw holes on the connecting plate are provided with surrounding baffles matched with screw holes of the light source circuit board.

The explosion-proof light source cavities are arranged in a regular matrix, in a triangular or irregular manner.

The beneficial effects of the utility model are as follows: on the premise of meeting the new version of explosion-proof standard of GB/T3836.2-2021, the limitation of the IIC-level explosion-proof cavity on the shape of the explosion-proof lamp radiator is broken through, and the shape of the radiator can be not only circular or regular polygon, but also any other shape, for example: the rectangle or the polygon similar to the rectangle creates larger free space in the aspect of the product and the structural design. When the light source radiator of the explosion-proof lamp is rectangular or polygonal similar to the rectangle, the modularized structural design is more facilitated, and the full coverage of 50W-500W or even larger power range is realized through one set of die. The advantage of modular structural design is fully exerted, different installation accessories are combined, and lenses with different light distribution are added, so that the same explosion-proof light source assembly is utilized, and various types of explosion-proof lighting products such as explosion-proof floodlights, explosion-proof street lamps and the like can be processed.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is an assembly view of the present utility model;

FIG. 3 is a view of a single module explosion-proof projector;

FIG. 4 is a view of a dual-module explosion-proof street lamp;

FIG. 5 is a dual-module explosion-proof projector view;

fig. 6 is a view of a four module explosion-proof floodlight.

Reference numerals in the drawings are as follows: 1. the LED lamp comprises a light source circuit board 2, a radiator 3, an LED light source 4, a wire 5, a lens 6, a connecting plate 7, a pressing plate 8, a lamp shade 9, a pressing ring 10, screws a,11, screws b,12 and screws c.

Detailed Description

The utility model is further described with reference to fig. 1-6:

the IIC level explosion-proof light source module is characterized in that the light source circuit board 1 is attached and fixed on the radiator 2, a plurality of LED light sources 3 are arranged on the light source circuit board 1, a lead 4 penetrates through the radiator 2 through the introduction device and is connected with the light source circuit board 1, the LED light sources 3 are oppositely arranged with the lens 5, the lens 5 is positioned on the connecting plate 6, the connecting plate 6 is fixedly connected with the light source circuit board 1, the lampshade 8 is fixed on the pressing ring 9, the pressing ring 9 is fixed on the radiator 2 to form two or more explosion-proof light source cavities, and the explosion-proof light source cavities are regularly distributed in a matrix, triangularly distributed or irregularly distributed. The lens 5 is made of an optical grade material made of PC materials, and each lens convex hull contains one or more LED light sources.

The light source circuit board 1 and the connecting plate 6 are fixed on the light source circuit board 1 through the penetrating screw a10, the screw hole on the connecting plate 6 is provided with a surrounding shield matched with the screw hole of the light source circuit board 1, so that on one hand, the locking tolerance of the lens and the light source plate can be reduced, and on the other hand, the screw can be prevented from touching the side wall of the circuit board, and particularly, when the light source circuit board is a metal substrate such as an aluminum substrate, a copper substrate and the like, the insulation performance of the whole circuit can be improved.

The clamping ring 9 is fixed on the radiator 2 by a screw b 11.

The pressing ring 9 is provided with an adhesive groove, adhesive is filled in the adhesive groove, the periphery of the lampshade 8 is adhered to the adhesive groove, the length of the formed adhesive surface completely meets the requirements of explosion-proof standards, the periphery of the lampshade 8 is in pressure connection with a plurality of pressing plates 7, and the pressing plates 7 are fixed on the pressing ring 9 through screws c12 to supplement mechanical fixing effect on the lampshade.

The introducing device is a packing sealing device with the length of more than 20mm, or an explosion-proof packing box or a compression nut.

The pressing ring 9 is connected with the radiator 2 through explosion-proof threads.

The pressing ring 9 is provided with an explosion-proof spigot meeting the explosion-proof standard requirement, and a spigot explosion-proof joint surface is formed between the pressing ring 9 and the radiator 2.

The lampshade is made of transparent or milky toughened glass or polycarbonate.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. The IIC level explosion-proof light source module is characterized in that a light source circuit board (1) is attached and fixed on a radiator (2), a plurality of LED light sources (3) are arranged on the light source circuit board (1), a lead (4) penetrates through the radiator (2) through a lead-in device and is connected with the light source circuit board (1), the LED light sources (3) are oppositely arranged with a lens (5), the lens (5) is located on a connecting plate (6), the connecting plate (6) is fixedly connected with the light source circuit board (1), a lampshade (8) is fixed on a pressing ring (9), and the pressing ring (9) is fixed on the radiator (2) to form a plurality of explosion-proof light source cavities.

2. The IIC-level explosion-proof light source module according to claim 1, wherein the light source circuit board (1) and the connection board (6) are fixed on the light source circuit board (1) by penetrating screws a (10).

3. The IIC-level explosion-proof light source module according to claim 1, wherein the clamping ring (9) is fixed on the heat sink (2) by a screw b (11).

4. The IIC-level explosion-proof light source module according to claim 1, wherein the pressing ring (9) is provided with an adhesive groove, adhesive is applied in the adhesive groove, the periphery of the lampshade (8) is adhered to the adhesive groove, a plurality of pressing plates (7) are arranged outside the lampshade (8) Zhou Yajie, and the pressing plates (7) are fixed on the pressing ring (9) through screws c (12).

5. The IIC-level explosion-proof light source module according to claim 1, wherein the introducing device is a packing sealing device or an explosion-proof packing box or a compression nut.

6. The IIC-level explosion-proof light source module according to claim 1, wherein the clamping ring (9) is connected with the radiator (2) through explosion-proof threads.

7. The IIC-level explosion-proof light source module according to claim 1, wherein the pressing ring (9) is provided with an explosion-proof spigot, and a spigot explosion-proof joint surface is formed between the pressing ring (9) and the radiator (2).

8. The IIC grade explosion-proof light source module of claim 1, wherein the lamp cover is transparent or milky toughened glass, or polycarbonate.

9. The IIC-level explosion-proof light source module according to claim 2, wherein the screw hole on the connecting plate (6) is provided with a fence matched with the screw hole of the light source circuit board (1).

10. The IIC-level explosion-proof light source module of claim 1, wherein the explosion-proof light source cavities are in a regular matrix arrangement or a triangular arrangement.