Explosion-proof lighting device

Abstract

The utility model relates to an explosion-proof lighting device which comprises a light source machine and a light guide fiber, the light source machine comprises a light source assembly and a driving power supply, the driving power supply is connected with the light source assembly through an electric wire, the light source assembly comprises a coupling connector and a radiator, the coupling connector is fixed at the front end of the radiator, and the light guide fiber is fixed at the front end of the radiator. A parallel light lamp bead is arranged at the joint of the coupling connector and the radiator, and the light guide fiber is inserted into an optical fiber interface of the coupling connector. Through mutual cooperation of the coupling connector and the radiator, parallel light emitted by the light source machine can cope with long-distance transmission scenes, the attenuation degree is low, and the light source machine is suitable for illumination of various limited spaces.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to an explosion-proof lighting device. Background Art

[0002] Confined space refers to a space that is closed or partially closed, with limited access but accessible to people, not designed as a fixed workplace, poorly ventilated, and prone to accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content. In confined spaces, due to factors such as poor ventilation and humidity, the use of traditional lamps as lighting equipment can easily generate sparks and cause production safety accidents. For example, coal mines, flour mills, tunnel excavation, etc. This is because the power supply, wires and light sources of traditional lamps are all in confined spaces. This lighting method is very likely to cause sparks due to aging of wires, power supplies and other parts.

[0003] Fiber optic lighting is not only a new development in fiber optic application technology in recent years, but also a new favorite in lighting technology. It has two application modes: end-point luminescence and body luminescence. For the former, the basic principle is to use a focusing device to couple the light emitted by the light source into the plastic optical fiber, transmit the light through the optical fiber, and then use a certain secondary light distribution system to transform it into light that meets the requirements of the specific lighting environment. Plastic optical fiber has the advantages of non-conductivity, non-heat generation, soft material, and bendability, so it is widely used in industry and scientific research.

[0004] However, when plastic optical fiber is used as a light source for lighting, there is a problem of lighting attenuation and it cannot meet the needs of long-distance lighting. Therefore, when plastic optical fiber is used as a light source, the light source machine must be modified to meet the needs of long-distance lighting. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof lighting device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An explosion-proof lighting device includes a light source machine and a light guide fiber. The light source machine includes a light source assembly and a driving power supply. The driving power supply is connected to the light source assembly through electric wires. The light source assembly includes a coupling connector and a heat sink. The coupling connector is fixed to the front end of the heat sink. A parallel light lamp bead is provided at the connection between the coupling connector and the heat sink. The light guide fiber is plugged into the optical fiber interface of the coupling connector.

[0008] In a possible embodiment, the coupling connector includes a light source fixing part and an optical fiber fixing part, the light source fixing part is formed with a first thread, the optical fiber fixing part is formed with a second thread, the first thread is connected to the light source fixing nut, and the second thread is connected to the optical fiber nut.

[0009] In a possible implementation, it further includes a chassis, which includes an upper cover, a base, a front cover and a rear cover, the upper cover and the base are fixedly connected by screws, and the front cover or the rear cover is connected to the upper cover and the base by screws.

[0010] In a possible implementation manner, a mounting groove is provided on the radiator, and the radiator is connected to the upper cover through the mounting groove.

[0011] In a possible implementation manner, a cooling fan is provided between the radiator and the rear end cover, and the cooling fan is fixed to the rear end cover by fastening screws.

[0012] In a possible implementation manner, a heat dissipation hole is provided on a side of the heat sink close to the heat dissipation fan.

[0013] In a possible implementation manner, one end of the light guide fiber away from the light source is connected to a light diffuser.

[0014] Compared with the prior art, the utility model uses the mutual cooperation of the coupling connector and the heat sink to enable the parallel light emitted by the light source to cope with the scenario of long-distance transmission, with low attenuation, and is suitable for lighting in various confined spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the light source machine in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the light source machine in the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the light source component. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] like Figure 1-4As shown, an explosion-proof lighting device includes a light source machine 100 and a light guide fiber 50. The light source machine 100 includes a light source assembly 10 and a driving power supply 20. The driving power supply 20 is connected to the light source assembly 10 through electric wires. The light source assembly 10 includes a coupling connector 11 and a heat sink 12. The coupling connector 11 is fixed at the front end of the heat sink 12. A parallel light lamp bead 13 is provided at the connection between the coupling connector 11 and the heat sink 12. The light guide fiber 50 is plugged into the optical fiber interface of the coupling connector 11.

[0021] The driving power supply 20 is connected to a 220V socket via a power cord, and a transformer can be provided on the driving power supply 20 to convert 220V AC power into DC power. The heat sink 12 can include a plurality of heat sinks, which can quickly conduct the heat emitted by the parallel light lamp beads 13 away from the light source assembly 10 after being stacked.

[0022] In order to protect the light source assembly 10 and the driving power supply 20, the light source machine 100 also includes a chassis 40, and the chassis 40 includes an upper cover 41, a base 42, a front cover 44 and a rear cover 43. The upper cover 41 and the base 42 are fixedly connected by screws, and the front cover 44 or the rear cover 43 is connected to the upper cover 41 and the base 42 by screws. The upper cover 41 and the base 42 adopt the same U-shaped structure, and the upper cover 41 and the base 42 are assembled together to form a accommodating cavity for the light source assembly 10. In order to enable the radiator 12 to be firmly fixed in the chassis 40, a mounting groove 121 is provided on the radiator 12, and the radiator 12 is connected to the upper cover 41 through the mounting groove 121.

[0023] A cooling fan 30 is also provided between the radiator 12 and the rear end cover 43, and the cooling fan 30 is fixed to the rear end cover 43 by fastening screws. The radiator 12 is provided with cooling holes in sequence near the cooling fan 30. The wind of the cooling fan 30 can enter the radiator 12 through the cooling holes, thereby realizing air cooling and heat dissipation of the parallel light lamp beads 13.

[0024] In order to better fix the light source assembly 10 on the chassis 40, the coupling connector 11 includes a light source fixing portion 112 and an optical fiber fixing portion 113. The light source fixing portion 112 is formed with a first thread, and the optical fiber fixing portion 113 is formed with a second thread. The first thread is connected to the light source fixing nut 111, and the second thread is connected to the optical fiber nut 51. A receiving hole for the coupling connector 11 is provided on the front end cover 44. The coupling connector 11 is inserted into the receiving hole, and the first thread is just outside the receiving hole. At this time, the light source fixing nut 111 is tightened to fix the coupling connector 11 on the front end cover 44. Then, the optical fiber 50 is inserted into the optical fiber interface of the coupling connector 11, and the optical fiber nut 51 is tightened to fix the optical fiber 50.

[0025] For confined spaces, in actual work, it is necessary to adjust the direction of the light guide fiber 50, and the brightness of the front end of the light guide fiber 50 is required to be greater than the rest, so as to illuminate the dark area in front, and then fix the direction of the light guide fiber 50. Therefore, in the present application, the end of the light guide fiber 50 away from the light source machine 100 is also connected to a light diffusing cover 60. The light diffusing cover 60 of the present application is different from the shape of a conventional light diffusing cover, but adopts a light diffusing cover with a spherical head, which makes the brightness of the front end of the light guide fiber 50 brighter. In order to better cope with the complex scenes of various confined spaces.

[0026] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. An explosion-proof lighting device, comprising a light source (100) and a light guide fiber (50), characterized in that: The light source machine (100) comprises a light source assembly (10) and a driving power supply (20), wherein the driving power supply (20) is connected to the light source assembly (10) via electric wires, and the light source assembly (10) comprises a coupling connector (11) and a heat sink (12), wherein the coupling connector (11) is fixed at the front end of the heat sink (12), a parallel light lamp bead (13) is provided at the connection between the coupling connector (11) and the heat sink (12), and the light guide fiber (50) is plugged into the optical fiber interface of the coupling connector (11).

2. The explosion-proof lighting device according to claim 1, characterized in that: The coupling connector (11) comprises a light source fixing portion (112) and an optical fiber fixing portion (113), the light source fixing portion (112) being formed with a first thread, the optical fiber fixing portion (113) being formed with a second thread, the first thread being connected to a light source fixing nut (111), and the second thread being connected to an optical fiber nut (51).

3. The explosion-proof lighting device according to claim 1, characterized in that: The invention also comprises a chassis (40), wherein the chassis (40) comprises an upper cover (41), a base (42), a front end cover (44) and a rear end cover (43), wherein the upper cover (41) and the base (42) are fixedly connected by screws, and the front end cover (44) or the rear end cover (43) is connected to the upper cover (41) and the base (42) by screws.

4. The explosion-proof lighting device according to claim 3, characterized in that: The radiator (12) is provided with a mounting groove (121), and the radiator (12) is connected to the upper cover (41) via the mounting groove (121).

5. The explosion-proof lighting device according to claim 3, characterized in that: A cooling fan (30) is provided between the radiator (12) and the rear end cover (43), and the cooling fan (30) is fixed to the rear end cover (43) by means of fastening screws.

6. The explosion-proof lighting device according to claim 5, characterized in that: The radiator (12) is provided with a heat dissipation hole on one side close to the heat dissipation fan (30).

7. The explosion-proof lighting device according to claim 1, characterized in that: One end of the light guide fiber (50) away from the light source (100) is connected to a light diffusing cover (60).

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