Explosion-proof LED floodlight working lamp

Abstract

The anti-explosion LED floodlight working lamp comprises a base body, a light source plate, supports and a light shield assembly, the light source plate is installed on the base body, the supports are arranged on the two sides of the base body, and the light shield assembly is arranged on the outer side of the base body in a sliding and covering mode. A light emitting side and a backlight side are arranged on the base main body, and a plurality of radiating fins are arranged on the backlight side. The light shielding cover assembly comprises a main cover body and a movable shielding piece, the movable shielding piece is arranged on the main cover body in a sliding mode, a plurality of ventilation through grooves are formed in the main cover body, and a plurality of avoiding through grooves matched with the ventilation through grooves are formed in the movable shielding piece; and along with the sliding of the movable shielding sheet on the main cover body, the avoiding through grooves and the ventilating through grooves are mutually overlapped or staggered. According to the anti-explosion LED floodlight working lamp, the adjusting function of the light shield can be achieved on the basis that the overall heat dissipation performance of the lamp is not affected, and therefore the adjusting requirement of a user for the illumination range is met.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof lamps, and in particular to an explosion-proof LED floodlight work lamp. Background Art

[0002] With the development of LED lighting technology, LED lights are used more and more in people's lives. In chemical, petrochemical, oil fields, coal mines and other industrial bases, gases, dust or chemicals with flammable, explosive, oxidizing and corrosive properties are often spread or stored. Therefore, these locations will use explosion-proof LED lights to avoid the sparks generated by old and faulty ordinary lamps that do not have explosion-proof properties, causing the aforementioned gas or chemical explosions and other accidents.

[0003] When installing explosion-proof LED lights, you need to adjust the irradiation range according to the actual needs of the site and choose whether to install a sunshade. As an independent accessory on the lamp, the sunshade can better gather light, making the light more concentrated and softer, avoiding direct glare from LED light and affecting people around.

[0004] However, in the prior art, the sunshade itself is a fixed integrated structure, which does not have an adjustment function, and is prone to fail to meet the user's lighting range adjustment needs, resulting in low practicality of the existing sunshade. In addition, explosion-proof LED lamps have high requirements for heat dissipation performance. Therefore, while the sunshade has an adjustment function, it should also ensure that it does not cause too much obstruction to the heat dissipation performance to ensure the normal operation of the explosion-proof LED lamp.

[0005] Therefore, how to design an explosion-proof LED floodlight so that the light shield can be adjusted without affecting the heat dissipation performance of the lamp, thereby meeting the user's demand for adjusting the lighting range, is a technical problem that technicians in this field need to solve. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an explosion-proof LED floodlight work lamp that can achieve the adjustment function of the light shield without affecting the heat dissipation performance of the lamp, thereby meeting the user's adjustment needs for the lighting range.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] An explosion-proof LED floodlight work lamp, comprising: a base body, a light source board, a bracket and a light shield assembly, wherein the light source board is mounted on the base body, the bracket is arranged on both sides of the base body, and the light shield assembly sliding cover is arranged on the outer side of the base body;

[0009] The base body is provided with a light-emitting side and a backlight side, and the backlight side is provided with a plurality of heat dissipation fins;

[0010] The sunshade assembly includes a main cover body and a movable shielding sheet, wherein the movable shielding sheet is slidably arranged on the main cover body, a plurality of air-permeable grooves are provided on the main cover body, and a plurality of avoidance grooves adapted to the air-permeable grooves are provided on the movable shielding sheet; as the movable shielding sheet slides on the main cover body, the avoidance grooves overlap or stagger with the air-permeable grooves.

[0011] In one of the embodiments, a lever is provided on the movable shielding sheet, a waist-shaped through hole adapted to the lever is opened on the main cover body, and the lever passes through the waist-shaped through hole and is slidably disposed in the waist-shaped through hole.

[0012] In one of the embodiments, the main cover body and the movable shielding plate are coated with a reflective coating or a reflective film on the inner side surfaces close to the light emitting side, and the reflective coating or the reflective film is used to reflect the light emitted by the light source panel.

[0013] In one of the embodiments, the base body is mounted on the bracket by positioning bolts, a slide groove is provided on the main cover body, and the positioning bolt passes through the slide groove, so that the main cover body is slidably mounted on the bracket.

[0014] In one embodiment, the base body is provided with: a light source chamber, a wiring chamber and an electrical chamber, the light source chamber is located on the light emitting side of the base body, the light source board is accommodated in the light source chamber, the wiring chamber and the electrical chamber are located on the backlight side of the base body, and the wiring chamber and the electrical chamber are connected through a threading hole;

[0015] The base body is provided with a wiring cover for covering the wiring chamber and an electrical cover for covering the electrical chamber.

[0016] In one of the embodiments, a transparent lens and a lens frame are provided on the base body, the transparent lens is covered at the opening of the light source chamber through the lens frame, and the lens frame is connected to the bracket through pins.

[0017] In one embodiment, an anti-collision net is provided at the opening of the light source chamber, and the anti-collision net is located between the transparent lens and the lens frame.

[0018] In one embodiment, the base body is provided with a wiring terminal and a controller, the wiring terminal is electrically connected to the controller, the controller is electrically connected to the light source board, the wiring terminal is accommodated in the wiring chamber, and the controller is accommodated in the electrical chamber.

[0019] In one of the embodiments, a wire outlet assembly is provided on the wiring cover, and a same wire outlet assembly is provided under the base body, and the wire outlet assembly is used to pass external cables; when in use, the wiring terminal is connected to the external cable, and the external cable selectively passes through part of the wire outlet assembly, and the other idle wire outlet assemblies are sealed by rubber plugs.

[0020] In one of the embodiments, the wiring cover and the electrical cover are both provided with waterproof sealing rings, and after the covers are closed, the waterproof sealing rings are pressed against the base body.

[0021] In summary, the explosion-proof LED floodlight work lamp of the present invention can realize the adjustment function of the light shield without affecting the overall heat dissipation performance of the lamp, thereby meeting the user's adjustment needs for the lighting range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of the explosion-proof LED floodlight of the present invention;

[0024] Figure 2 It is a schematic diagram of the explosion-proof LED floodlight of the present invention when the light shield assembly is used;

[0025] Figure 3 for Figure 1 The exploded schematic diagram of the explosion-proof LED floodlight shown;

[0026] Figure 4 is a structural schematic diagram of a sunshade assembly;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure of the base body shown;

[0028] Figure 6 It is a schematic diagram of the state of the light shield assembly when shading;

[0029] Figure 7 This is a schematic diagram of the explosion-proof LED floodlight when the hood assembly is not in use. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The present invention provides an explosion-proof LED floodlight work lamp 10, such as Figure 1 and Figure 2 As shown, it includes: a base body 100, a light source board 200, a bracket 300 and a shading cover assembly 400, the light source board 200 is installed on the base body 100, the bracket 300 is arranged on both sides of the base body 100, and the shading cover assembly 400 is slidingly arranged on the outer side of the base body 100.

[0034] like Figure 2 and Figure 3 As shown, the base body 100 is provided with a light emitting side 101 and a backlight side 102, and the backlight side 102 is provided with a plurality of heat dissipation fins 103. The heat dissipation fins 103 can significantly increase the heat dissipation area of ​​the base body 100, so that the explosion-proof LED floodlight work lamp 10 has good heat dissipation performance.

[0035] like Figure 3As shown, the sunshade assembly 400 includes a main cover body 410 and a movable shielding sheet 420, the movable shielding sheet 420 is slidably arranged on the main cover body 410, a plurality of ventilation slots 411 are provided on the main cover body 410, and a plurality of avoidance slots 421 adapted to the ventilation slots 411 are provided on the movable shielding sheet 420. During use, as the movable shielding sheet 420 slides on the main cover body 410, the avoidance slots 421 and the ventilation slots 411 will overlap or stagger with each other, so that the main cover body 410 is hollowed out or shielded. The specific working principle will be described below.

[0036] In this embodiment, if Figure 4 As shown, the movable shielding sheet 420 is provided with a lever 422, and the main cover body 410 is provided with a waist-shaped through hole 412 adapted to the lever 422, and the lever 422 passes through the waist-shaped through hole 412 and is slidably disposed in the waist-shaped through hole 412. When in use, the user can drive the movable shielding sheet 420 and the main cover body 410 to slide by pushing and pulling the lever 422, thereby selecting whether to use the light shielding cover assembly 400, adjusting the length of the light shielding cover assembly 400 on the light exit side 101, and the state of the light shielding cover assembly 400. The specific working principle will be described below.

[0037] Preferably, Figure 2 and Figure 4 As shown, the base body 100 is installed on the bracket 300 through the positioning bolts 310 , and a slide groove 413 is opened on the main cover body 410 . The positioning bolts 310 pass through the slide groove 413 , so that the main cover body 410 is slidably arranged on the bracket 300 .

[0038] In this embodiment, if Figure 3 and Figure 5 As shown, the base body 100 is provided with: a light source chamber 110 (such as Figure 3 As shown in the figure), the wiring chamber 120 and the electrical chamber 130, the light source chamber 120 is located on the light-emitting side 101 of the base body 100, and the light source board 200 is accommodated in the light source chamber 110; the wiring chamber 120 and the electrical chamber 130 are located on the backlight side 102 of the base body 100, and the wiring chamber 120 and the electrical chamber 130 are connected through a threading hole (not shown). In addition, the base body 100 is provided with a wiring cover 140 for covering the wiring chamber 120 and an electrical cover 150 for covering the electrical chamber 130.

[0039] Preferably, Figure 5 As shown, both the wiring cover 140 and the electrical cover 150 are provided with a waterproof sealing ring 141 ; after the covers are closed, the waterproof sealing ring 141 is pressed against the base body 100 to improve the waterproof effect of the wiring chamber 120 and the electrical chamber 130 .

[0040] Preferably, Figure 5As shown, the base body 100 is provided with a connection terminal 160 and a controller 170, the connection terminal 160 is electrically connected to the controller 170, the controller 170 is electrically connected to the light source board 200, the connection terminal 160 is accommodated in the connection chamber 120, and the controller 170 is accommodated in the electrical chamber 130. When in use, an external cable (not shown) guides the current to the connection terminal 160, and then the connection terminal 160 guides the controller 170, and then the controller 170 causes the light source board 200 to emit light, and the generated light is irradiated in the direction of the light emitting side 101; in this process, the heat generated by the controller 170 and the light source board 200 will be transferred to the base body 100, and dissipated to the surrounding environment through the heat dissipation fins 103.

[0041] Next, in combination with the above structure, the working principle of the light shield assembly 400 of the present invention is explained:

[0042] The light shield assembly 400 of the explosion-proof LED floodlight 10 of the present invention is designed to achieve the adjustment function of the light shield without affecting the heat dissipation performance of the lamp, thereby meeting the user's adjustment needs for the lighting range of the lamp. Therefore, in the present invention, the user can choose whether to use the light shield assembly 400 according to actual needs, and adjust the use status of the light shield assembly 400;

[0043] When shading is required, the user pushes the lever 422 with both hands to move the movable shielding sheet 420 toward the light-emitting side 101 of the base body 100; and because the lever 422 is restricted by the waist-shaped through hole 412, when the movable shielding sheet 420 moves a certain distance, the lever 422 will drive the main cover body 410 to move together, so that the entire shading cover assembly 400 is displaced relative to the base body 100. In this way, the shading cover assembly 400 moves to the light-emitting side 101 of the base body 100 (such as Figure 2 As shown), the light emitted by the light source panel 200 is partially shielded, and the illumination range of the explosion-proof LED floodlight work lamp 10 is reduced (the illumination angle becomes smaller). At the same time, the user can change the length of the light-emitting side 101 by adjusting the moving distance of the light shielding cover assembly 400, thereby further adjusting the illumination angle of the explosion-proof LED floodlight work lamp 10. It is worth noting that since the movable shielding piece 420 preferentially moves a certain distance, the avoidance slot 421 and the ventilation slot 411 that originally overlap with each other will be staggered; in this way, the avoidance slot 421 will be blocked by the main cover body 410, and the ventilation slot 411 will be blocked by the movable shielding piece 420, that is, the avoidance slot 421 and the ventilation slot 411 are both shielded (as shown in FIG. 1 ). Figure 6 As shown), the main cover body 410 will not be light-transmissive, thus achieving a good light-shielding effect;

[0044] When shading is not needed, the user pushes the lever 422 with both hands to move the movable shielding sheet 420 toward the backlight side 102 of the base body 100. Since the lever 422 is restricted by the waist-shaped through hole 412, after the movable shielding sheet 420 moves a certain distance, the lever 422 will drive the main cover body 410 to move together, so that the entire shading cover assembly 400 moves toward the backlight side 102. When the shading cover assembly 400 is completely moved to the backlight side 102 of the base body 100 (such as Figure 7 As shown), the edge of the shading cover assembly 400 is flush with the plane where the light emitting side 101 is located, and the shading cover assembly 400 will not block the light of the light source board 200, and the illumination range of the explosion-proof LED floodlight work lamp 10 is maximized. It is worth noting that since the movable shielding sheet 420 is preferentially moved a certain distance, the avoidance groove 421 and the ventilation groove 411 that were originally staggered will overlap with each other again, so that the main cover body 410 is in a hollow state. At this time, the shading cover assembly 400 will not excessively cover the heat dissipation fins 103 on the backlight side 102, thereby ensuring the heat dissipation performance of the lamp.

[0045] Compared with the prior art, the sunshade assembly 400 of the present invention can not only realize telescopic adjustment, but also take into account the heat dissipation performance of the lamp. Specifically, the sunshade assembly 400 can move on the base body 100, so as to adjust its length on the light-emitting side 101 according to actual needs. The longer the length of the sunshade assembly 400 on the light-emitting side 101, the greater the light angle blocked by the light source board 200, and the smaller the illumination range of the lamp. When shading is not required, the sunshade assembly 400 will be completely moved to the backlight side 102 of the base body 100, so as to completely expose the light source board 200 on the light-emitting side 101; at this time, the sunshade assembly 400 will be covered on the periphery of the heat dissipation fins 103, thereby affecting the air flow around the heat dissipation fins 103. Therefore, the relative position of the movable shielding sheet 420 and the main cover body 410 can be adjusted so that the avoidance slot 421 and the ventilation slot 411 overlap with each other, and then the sunshade assembly 400 becomes a hollow state (such as Figure 7 As shown in FIG. 1 , the sunshade assembly 400 will not cause excessive obstruction to the air flow around the heat dissipation fins 103, thereby ensuring the heat dissipation performance of the lamp.

[0046] Preferably, the main cover body 410 and the movable shielding plate 420 are coated with a reflective coating or a reflective film (not shown) on the inner side surface 101 close to the light emitting side. The reflective coating or the reflective film is used to reflect the light emitted by the light source panel 200, so that the light can be better gathered to the side without the sunshade assembly 400, thereby improving the light intensity in the illumination range of the lamp.

[0047] In this embodiment, if Figure 3As shown, a transparent lens (not shown) and a lens frame 111 are provided on the base body 100. The transparent lens is covered at the opening of the light source chamber 110 through the lens frame 111, and the lens frame 111 is connected to the bracket 300 through a pin 112. The provision of the pin 112 can make the installation of the lens frame 111 more firm and stable, and can also facilitate the subsequent maintenance of the light source board 200. During maintenance, the staff only needs to remove the pin 112 to remove the lens frame 111 and the transparent lens, thereby exposing the light source board 200; at the same time, the light shield assembly 400 is moved to the backlight side 102, so that it will not cause shading.

[0048] Preferably, an anti-collision net 114 (such as Figure 2 As shown), the anti-collision net 114 is located between the transparent lens and the frame 111. The anti-collision net 114 can effectively prevent the light source panel 200 from being damaged by collisions, and avoid the light source panel 200 from being damaged by collisions and generating arc sparks, thereby improving the explosion-proof safety of the lamp.

[0049] In one embodiment, if Figure 5 As shown, the wiring cover 140 is provided with an outlet assembly 180, and the same outlet assembly 180 is also provided under the base body 100, that is, the entire lamp has two sets of outlet assemblies 180 in different positions. The outlet assembly 180 is used to pass external cables. When in use, the wiring terminal 160 is connected to the power grid through the external cable. The external cable selectively passes through a certain set of outlet assemblies 180, and the other set of idle outlet assemblies 180 is sealed by a rubber plug. In this way, no matter where the bracket 300 is installed and how the explosion-proof LED floodlight work lamp 10 is installed, the staff can select one set of outlet assemblies 180 that is more convenient for wiring according to the actual situation, thereby reducing the difficulty of wiring and facilitating the installation operation.

[0050] In summary, the explosion-proof LED floodlight work lamp 10 of the present invention can realize the adjustment function of the light shield without affecting the overall heat dissipation performance of the lamp, thereby meeting the user's adjustment needs for the lighting range.

[0051] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An explosion-proof LED floodlight, characterized in that: include: A base body, a light source board, a bracket and a light shield assembly, wherein the light source board is mounted on the base body, the bracket is arranged on both sides of the base body, and the light shield assembly sliding cover is arranged on the outer side of the base body; The base body is provided with a light-emitting side and a backlight side, and the backlight side is provided with a plurality of heat dissipation fins; The sunshade assembly includes a main cover body and a movable shielding sheet, wherein the movable shielding sheet is slidably arranged on the main cover body, a plurality of air-permeable grooves are provided on the main cover body, and a plurality of avoidance grooves adapted to the air-permeable grooves are provided on the movable shielding sheet; as the movable shielding sheet slides on the main cover body, the avoidance grooves overlap or stagger with the air-permeable grooves.

2. The explosion-proof LED floodlight according to claim 1, characterized in that: The movable shielding sheet is provided with a lever, the main cover body is provided with a waist-shaped through hole adapted to the lever, and the lever passes through the waist-shaped through hole and is slidably arranged in the waist-shaped through hole.

3. The explosion-proof LED floodlight according to claim 2 is characterized in that: The main cover body and the movable shielding sheet are coated with a reflective coating or a reflective film on the inner side surfaces close to the light-emitting side, and the reflective coating or the reflective film is used to reflect the light emitted by the light source panel.

4. The explosion-proof LED floodlight according to claim 1, characterized in that: The base body is installed on the bracket through positioning bolts, and a slide groove is opened on the main cover body. The positioning bolt passes through the slide groove, so that the main cover body is slidably arranged on the bracket.

5. The explosion-proof LED floodlight according to claim 1, characterized in that: The base body is provided with: a light source chamber, a wiring chamber and an electrical chamber, the light source chamber is located on the light emitting side of the base body, the light source board is accommodated in the light source chamber, the wiring chamber and the electrical chamber are located on the backlight side of the base body, and the wiring chamber and the electrical chamber are connected through a threading hole; The base body is provided with a wiring cover for covering the wiring chamber and an electrical cover for covering the electrical chamber.

6. The explosion-proof LED floodlight according to claim 5, characterized in that: A transparent lens and a lens frame are provided on the base body. The transparent lens is covered at the opening of the light source chamber through the lens frame. The lens frame is connected to the bracket through pins.

7. The explosion-proof LED floodlight according to claim 6, characterized in that: An anti-collision net is provided at the opening of the light source chamber, and the anti-collision net is located between the transparent lens and the lens frame.

8. The explosion-proof LED floodlight according to claim 5, characterized in that: The base body is provided with a connection terminal and a controller, the connection terminal is electrically connected to the controller, the controller is electrically connected to the light source board, the connection terminal is accommodated in the connection chamber, and the controller is accommodated in the electrical chamber.

9. The explosion-proof LED floodlight according to claim 8, characterized in that: The wiring cover is provided with an outlet assembly, and the base body is provided with the same outlet assembly below, and the outlet assembly is used to pass external cables; when in use, the wiring terminal is connected to the external cable, and the external cable selectively passes through part of the outlet assembly, and the other idle outlet assemblies are sealed by rubber plugs.

10. The explosion-proof LED floodlight according to claim 5, characterized in that: The wiring cover and the electrical cover are both provided with waterproof sealing rings. After the covers are closed, the waterproof sealing rings are pressed on the base body.

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