CN217030965U

CN217030965U - Mining explosion-proof and intrinsically safe roadway lamp

Info

Publication number: CN217030965U
Application number: CN202220857734.1U
Authority: CN
Inventors: 于倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-07-22
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a mine explosion-proof and intrinsic safety type roadway lamp, belongs to the technical field of intrinsic safety type explosion prevention, and aims to solve the problems that an existing mine roadway lamp is insufficient in electric spark suppression of an internal circuit and intrinsic safety degree. The explosion-proof power supply comprises an explosion-proof rear shell, a front end transparent cover, a partition plate, a power supply, a circuit board pouring unit, a power supply connecting part and a lens; the front end transparent cover and the explosion-proof rear shell are fixed together through a partition plate, the aluminum substrate is fixed on the partition plate of the intrinsic safety cavity, a plurality of lamp beads are arranged on the aluminum substrate in an array mode, and the lens cover is arranged on the lamp beads; the power supply is cast and sealed in the explosion-proof cavity, a power supply connecting part is arranged on a partition plate in the explosion-proof cavity, a wiring space is arranged in the power supply connecting part, and a power supply connecting column is arranged on the surface of the power supply connecting part; the circuit board encapsulation unit comprises a power supply connecting groove, an encapsulation shell and a circuit board, wherein the power supply connecting groove is formed in the bottom of the encapsulation shell, and the circuit board encapsulation is arranged inside the encapsulation shell and is electrically connected with the power supply connecting groove through an electric wire.

Description

Mining explosion-proof and intrinsically safe roadway lamp

Technical Field

The utility model relates to a mine roadway lamp, and belongs to the technical field of intrinsic safety type explosion prevention.

Background

The intrinsic safety explosion-proof refers to that the explosion-proof performance of the whole automation system meets the intrinsic safety explosion-proof requirement. The explosion-proof instrument has the best explosion-proof performance, and is suitable for all dangerous places and all explosive gases in principle; the safety performance of the safety device does not change along with time; the maintenance is convenient, and the maintenance and the adjustment can be carried out under the running state.

Most of the mining roadway lamps are of an explosion-proof and intrinsically safe type, and the mining roadway lamps are widely applied to fixed illumination in underground coal mine roadways and chambers with explosive mixture gases such as methane, coal dust and the like. Most energy is put on a shell with an explosion-proof function when the existing mine roadway lamp is designed, once a circuit in the roadway lamp shell is short-circuited or subjected to electric spark, the explosion-proof shell can prevent the circuit from igniting combustible gas under the mine, but the technology for inhibiting the electric spark of an internal circuit is obviously insufficient, and the intrinsic safety degree is not enough.

Therefore, in view of the above disadvantages, it is desirable to provide a mining roadway lamp having an explosion-proof housing and capable of suppressing the occurrence of electric sparks in internal circuits.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mine explosion-proof and intrinsic safety type roadway lamp, which aims to solve the problems that an existing mine roadway lamp is insufficient in electric spark suppression of an internal circuit and insufficient in intrinsic safety.

The utility model relates to a mining explosion-proof and intrinsic safety type roadway lamp, which comprises an explosion-proof rear shell 1, a front end transparent cover 2, a partition plate 3, a power supply 4, a circuit board pouring and sealing unit 5, a power supply connecting part 6, a lens 7, an aluminum substrate 8 and lamp beads 9, wherein the front end transparent cover is arranged on the front end of the explosion-proof rear shell;

the front-end transparent cover 2 and the explosion-proof rear shell 1 are fixed together through a partition plate 3, the space enclosed by the explosion-proof rear shell 1 and the partition plate 3 is an explosion-proof cavity, the space enclosed by the front-end transparent cover 2 and the partition plate 3 is an intrinsic safety cavity, an aluminum substrate 8 is fixedly connected to the partition plate 3 of the intrinsic safety cavity, a plurality of lamp beads 9 are distributed on the aluminum substrate 8 in an array mode, and a lens 7 is tightly attached to the aluminum substrate 8 and covers the plurality of lamp beads 9;

the power supply 4 is sealed in the explosion-proof cavity in a pouring manner, the power supply connecting part 6 is arranged on the partition plate 3 in the explosion-proof cavity, a wiring space is arranged inside the power supply connecting part 6, and a power supply connecting column 6-1 is arranged on the outer surface of the power supply connecting part 6;

the circuit board encapsulation unit 5 is provided with a power supply connecting groove 5-1, and the power supply connecting groove 5-1 and the power supply connecting column 6-1 are matched, plugged and pulled to realize position fixing and electric connection; the power supply 4 is respectively electrically connected with the circuit board encapsulation unit 5 and the lamp bead 9 through the internal wiring of the power supply connecting part 6.

Preferably, the circuit board encapsulation unit 5 has an encapsulation housing 5-2, the bottom of which is provided with a power connection groove 5-1, and the circuit board 5-3 is encapsulated inside the encapsulation housing 5-2 and is electrically connected with the power connection groove 5-1 through a wire.

Preferably, a protective case is further provided outside the circuit board 5-3.

Preferably, the lens 7 is a ring lens, a flood lens or an elongated lens.

The utility model has the beneficial effects that: the utility model relates to a roadway lamp which is provided with an explosion-proof shell, the interior of the roadway lamp is divided into an intrinsic safety cavity and an explosion-proof cavity, a power supply and a circuit board are fixed in the explosion-proof cavity in a pouring and sealing mode, wherein the circuit board is poured and sealed in a pluggable and replaceable independent unit which is a circuit board pouring and sealing unit, the circuit board and a power connection column of the explosion-proof cavity are fixed and separated in the pouring and sealing mode, the circuit board can be electrically connected with the power supply through plugging, electric arcs, electric sparks or high-temperature parts possibly generated by the circuit board and the power supply are poured and sealed in a pouring and sealing agent in the pouring and sealing mode, the intrinsic safety degree is greatly improved, the intrinsic safety explosion-proof requirement in the same field is exceeded, and if the circuit board fails, the circuit board pouring and sealing unit is completely replaced.

Drawings

FIG. 1 is a schematic structural diagram of an explosion-proof and intrinsically safe roadway lamp for a mine, which is disclosed by the utility model;

fig. 2 is a schematic structural view of the circuit board encapsulation unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

The first specific implementation way is as follows: the following describes the embodiment with reference to fig. 1 and fig. 2, and the mining explosion-proof and intrinsically safe roadway lamp in the embodiment includes an explosion-proof rear shell 1, a front end transparent cover 2, a partition plate 3, a power supply 4, a circuit board encapsulation unit 5, a power supply connection part 6, a lens 7, an aluminum substrate 8 and a lamp bead 9;

the front end transparent cover 2 and the explosion-proof rear shell 1 are fixed together through a partition plate 3, the space enclosed by the explosion-proof rear shell 1 and the partition plate 3 is an explosion-proof cavity, the space enclosed by the front end transparent cover 2 and the partition plate 3 is an intrinsic safety cavity, an aluminum substrate 8 is fixedly connected to the partition plate 3 of the intrinsic safety cavity, a plurality of lamp beads 9 are distributed on the aluminum substrate 8 in an array manner, and a lens 7 is tightly attached to the aluminum substrate 8 and covers the plurality of lamp beads 9;

the power supply 4 is cast in the explosion-proof cavity, the power supply connecting part 6 is arranged on the partition plate 3 in the explosion-proof cavity, a wiring space is arranged in the power supply connecting part 6, and a power supply connecting column 6-1 is arranged on the outer surface of the power supply connecting part 6;

the circuit board encapsulation unit 5 is provided with a power supply connecting groove 5-1, and the power supply connecting groove 5-1 and the power supply connecting column 6-1 are matched, plugged and pulled to realize position fixing and electric connection; power 4 is walked the line through power connecting portion 6 inside and is connected with circuit board encapsulation unit 5 and lamp pearl 9 electricity respectively.

The key point of the utility model is that an independent unit, namely a circuit board encapsulation unit 5 is arranged in the explosion-proof cavity, the circuit board encapsulation unit 5 is provided with an encapsulation shell 5-2, the bottom of the encapsulation shell is provided with a power supply connection groove 5-1, and the circuit board 5-3 is arranged in the encapsulation shell 5-2 in an encapsulation way and is electrically connected with the power supply connection groove 5-1 through a wire. The power connection groove 5-1 and the power connection column 6-1 are a pair of pluggable power plug connectors (a male connector and a female connector), the circuit board encapsulation unit 5 can be plugged into the power connection column 6-1 through the power connection groove 5-1, so that the mechanical position of the circuit board encapsulation unit 5 in the explosion-proof cavity can be fixed, the electrical connection between the circuit board encapsulation unit 5 and the power source 4 can be realized, a wiring space is arranged inside the power connection part 6, the two ends of an electric wire are respectively connected with the power source 4 and the circuit board encapsulation unit 5, and meanwhile, the electrical connection between the power source 4 and the lens 7 is realized through wiring inside the power connection part 6.

Electric arcs, electric sparks or high-temperature parts possibly generated by the circuit board and the power supply are encapsulated in the encapsulating agent in an encapsulating mode, so that the intrinsic safety degree is greatly improved.

In addition, the circuit board 5-3 is connected with the power supply connecting groove 5-1 through a wire, then the circuit board 5-3 is encapsulated in the encapsulation shell 5-2 through the encapsulation agent to form an independent unit, and once the circuit board 5-3 breaks down and needs to be replaced, the circuit board encapsulation unit 5 is pulled out, and then a brand new circuit board encapsulation unit 5 is replaced.

Further, a protective shell is arranged outside the circuit board 5-3. The circuit board 5-3 is protected before encapsulation to prevent the encapsulation agent from causing physical damage to the circuit board 5-3 and further prolong the service life of the circuit board 5-3.

Furthermore, the lens 7 adopts a ring-light lens, a flood lens or a long and narrow lens, so that different light transmission modes can be realized.

Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that various dependent claims and the features described herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims

1. The mining explosion-proof and intrinsic safety type roadway lamp is characterized by comprising an explosion-proof rear shell (1), a front end transparent cover (2), a partition plate (3), a power supply (4), a circuit board pouring unit (5), a power supply connecting part (6), a lens (7), an aluminum substrate (8) and a lamp bead (9);

the front end transparent cover (2) and the explosion-proof rear shell (1) are fixed together through a partition plate (3), the enclosed space of the explosion-proof rear shell (1) and the partition plate (3) is an explosion-proof cavity, the enclosed space of the front end transparent cover (2) and the partition plate (3) is an intrinsic safety cavity, an aluminum substrate (8) is fixedly connected to the partition plate (3) of the intrinsic safety cavity, a plurality of lamp beads (9) are distributed on the aluminum substrate (8) in an array manner, and a lens (7) is tightly attached to the aluminum substrate (8) and covers the plurality of lamp beads (9);

the power supply (4) is cast and sealed in the explosion-proof cavity, a power supply connecting part (6) is arranged on the partition plate (3) in the explosion-proof cavity, a wiring space is arranged in the power supply connecting part (6), and a power supply connecting column (6-1) is arranged on the outer surface of the power supply connecting part (6);

the circuit board pouring and sealing unit (5) is provided with a power supply connecting groove (5-1), and the power supply connecting groove (5-1) and the power supply connecting column (6-1) are matched, plugged and pulled to realize position fixing and electric connection; the power supply (4) is respectively electrically connected with the circuit board encapsulation unit (5) and the lamp beads (9) through the internal wiring of the power supply connecting part (6).

2. The mining explosion-proof and intrinsically safe roadway lamp as claimed in claim 1, wherein the circuit board encapsulation unit (5) comprises a power supply connection groove (5-1), an encapsulation housing (5-2) and a circuit board (5-3), the power supply connection groove (5-1) is formed in the bottom of the encapsulation housing (5-2), and the circuit board (5-3) is arranged in the encapsulation housing (5-2) in an encapsulation manner and is electrically connected with the power supply connection groove (5-1) through a wire.

3. The mining explosion-proof and intrinsically safe roadway lamp as claimed in claim 2, characterized in that a protective shell is further arranged outside the circuit boards (5-3).

4. The mining explosion-proof and intrinsically safe roadway lamp as claimed in claim 1, wherein the lens (7) is a ring-lighting lens, a floodlight lens or an elongated lens.