A three-proof lamp

By incorporating ear-shaped clips into the lamp body slots on the power board and combining them with end cap locking design, the problem of loosening and falling off the power supply unit of the tri-proof lamp is solved, achieving stable installation and high sealing performance, improving safety and reliability, and reaching IP67 protection level.

CN224593213UActive Publication Date: 2026-08-04GUANGDONG PAK CORP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG PAK CORP CO LTD
Filing Date
2025-07-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing tri-proof lighting fixtures suffer from poor durability, significant safety hazards, and complex installation methods in their power supply fixing methods. They are particularly prone to loosening and falling off in harsh environments such as high temperature, high humidity, and vibration, resulting in insufficient safety and reliability.

Method used

The power board features a relatively protruding ear at one end, which snaps into the first slot of the lamp body and is secured by the second slot of the first end cap. This combination of the slot structure inside the lamp body and the snap-fit ​​design of the end cap ensures a stable installation of the power board. At the same time, the angled reflective surface is used to improve light efficiency, and the power cord connection is sealed with potting compound to achieve IP67 protection.

Benefits of technology

It achieves stable installation of the power board, simplifies the installation process, improves safety and sealing, meets IP67 protection requirements, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of lighting lamps and lanterns discloses a three proof lamps and lanterns, including the lamp body, first end cover, second end cover, power board and light source board, first end cover and second end cover are respectively sleeved in the both ends of lamp body, and the light source board is installed in the inside of lamp body, be equipped with two opposite first clamping groove in lamp body, and the both ends of two first clamping groove away from the mouth are equipped with fixed plate between lamp body inner wall, be equipped with two opposite second clamping groove in first end cover, the one end of power board extends to both sides and sets up two ears, and the one end of power board away from ear is fixed in first clamping groove, and the end face of two ears and first clamping groove abuts, and two ears are fixed in second clamping groove. The utility model discloses a pair of protruding ears are arranged at one end of power board, so that the power board can be effectively limited during installation, avoids knocking or displacement during use, and the structure is stable and convenient to install.
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Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and more specifically, to a tri-proof lighting fixture. Background Technology

[0002] In outdoor and harsh industrial environments, such as power plants, steel smelting, petrochemical plants, ships, large stadiums, underground parking lots, and tunnels, extremely high demands are placed on the safety and reliability of lighting equipment. These environments typically present harsh conditions such as humidity, dust, corrosive gases, frequent vibrations, or extreme temperatures, making ordinary lighting fixtures unsuitable. Therefore, specialized tri-proof lighting fixtures with waterproof, dustproof, and corrosion-resistant properties are essential. These fixtures must meet specific protection rating (IP rating) standards, such as IP65, IP66, or higher, to ensure that their internal electrical components function properly under harsh conditions, preventing short circuits, failures, or even safety accidents caused by moisture, dust intrusion, or corrosion. Generally, the higher the protection rating, the better the environmental adaptability and safety.

[0003] Currently, conventional tri-proof lighting fixtures on the market generally have significant flaws in their power supply mounting methods. The mainstream approach is to use double-sided tape for adhesion or to place them within a simple power supply box for installation and fixation. However, these mounting methods have the following key problems:

[0004] Poor durability: During long-term use, especially in environments with high temperature, high humidity, oil, or chemical corrosion, double-sided tape is prone to aging, delamination, and loss of adhesion, leading to loosening or even detachment of the power supply unit. Poorly designed or poorly secured power box structures may also shift due to vibration.

[0005] Significant safety hazards: The power supply unit is the core electrical component of the lamp. Its loosening or detachment may not only cause the lamp to malfunction, but may also lead to poor contact at electrical connection points, broken cables, or even electric sparks, posing a serious safety hazard in flammable, explosive, or dusty environments.

[0006] Installation is complex and cumbersome: Existing solutions typically require additional mounting brackets, screws, clips, and other accessories for installation. This not only increases the number of installation steps and time costs but also raises the possibility of errors during installation. It also demands a relatively high level of skill from the installers, making installation and use extremely inconvenient.

[0007] Therefore, there is an urgent need to develop a tri-proof lighting fixture with a more reasonable structure, more reliable fixation, more convenient installation, and significantly improved safety to overcome the shortcomings of existing technologies. Utility Model Content

[0008] The main purpose of this utility model is to propose a tri-proof lamp to solve the problems of complex structure, unstable installation and poor safety performance of existing tri-proof lamps.

[0009] To achieve the above objectives, this utility model proposes a tri-proof lamp, comprising a lamp body, a first end cap, a second end cap, a power board, and a light source board; the first end cap and the second end cap are respectively sleeved on both ends of the lamp body, and the light source board is installed inside the lamp body; the lamp body is provided with two opposing first slots, and a fixing plate is provided between the end of the two first slots away from the opening and the inner wall of the lamp body; the first end cap is provided with two opposing second slots; one end of the power board extends to both sides and is provided with two ears, the end of the power board away from the ears is fixed in the first slot, and the two ears abut against the end face of the first slot, and the two ears are fixed in the second slot.

[0010] This invention features two opposing protruding ears at one end of the power board. When the power board is inserted into the first slot of the lamp body, the ears abut against the end face of the first slot, effectively preventing the power board from moving further into the lamp body and providing effective positioning. Simultaneously, the end with the ears inserts into the second slot of the first end cover, preventing the power board from detaching outwards. This simple structure allows for convenient and secure installation of the power board.

[0011] Preferably, the lamp body is provided with a third slot, and the light source board is fixed in the third slot. This structure makes the assembly and disassembly of the light source board more convenient.

[0012] Preferably, the two ends of the third slot extend towards the inner wall of the lamp body, respectively, with a first inclined surface and a second inclined surface. Both the first and second inclined surfaces are inclined towards the light-emitting surface along the direction of the third slot towards the inner wall of the lamp body. The reflective surface formed by the first and second inclined surfaces improves the illuminance of the light source plate.

[0013] Preferably, the first end cap has two opposing fourth slots, and the first inclined surface and the second inclined surface are respectively fixed in the two fourth slots. This makes the engagement between the lamp body and the end cap more stable.

[0014] Preferably, the first end cap has a first slot, the first slot has a through hole for the power cord to pass through, and a stepped portion is provided between the first slot and the through hole.

[0015] Preferably, the through hole extends outward from the first end cap to form a second slot; the power cord is provided with a plug and a snap-fit ​​part, the plug being snapped into the second slot and the snap-fit ​​part abutting against the stepped part.

[0016] The above structure improves the sealing of the power cord connection, enabling the tri-proof lamp of this invention to reach the IP67 rating.

[0017] Preferably, the lamp body is further provided with a sliding groove and a mounting bracket that can slide along the sliding groove.

[0018] Preferably, the mounting bracket includes a bracket body and two bracket arms respectively disposed at both ends of the bracket body. The bracket arms are arranged perpendicularly to the bracket body, and each bracket arm is bent to form a hook portion. A sliding groove is provided on each side of the lamp body, and each hook portion is engaged with the sliding groove.

[0019] Preferably, the bracket body is provided with mounting holes.

[0020] The above structure facilitates the fixed installation of tri-proof lighting fixtures.

[0021] Preferably, both the first end cap and the second end cap have two opposing protrusions that engage with the sliding groove, thereby improving the sealing performance of the two end caps. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is an exploded view of the tri-proof lamp in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the lamp body in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the power board structure in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the first end cap in an embodiment of the present utility model;

[0027] Figure 5 This is a structural schematic diagram of the first end cap from another perspective in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the second end cap in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the power cord structure in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the mounting bracket in an embodiment of the present utility model.

[0031] In the attached diagram: 10-lamp body, 11-first slot, 12-fixing plate, 13-third slot, 14-first inclined surface, 15-second inclined surface, 16-sliding groove, 20-first end cap, 21-second slot, 22-fourth slot, 23-first groove, 24-through hole, 25-stepped part, 26-second groove, 27-protrusion, 30-second end cap, 40-power board, 41-ear, 50-light source board, 60-power cord, 61-plug, 62-clamping part, 70-mounting bracket, 71-bracket body, 72-bracket arm, 73-hook part, 74-mounting hole.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In addition, the term "comprising" and any variations thereof mean "at least comprising."

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0037] Example

[0038] like Figures 1-8 As shown, this utility model provides a tri-proof lamp, including a lamp body 10, a first end cap 20, a second end cap 30, a power board 40, and a light source board 50. The first end cap 20 and the second end cap 30 are respectively sleeved on both ends of the lamp body 10, and the light source board 50 is installed inside the lamp body 10. The light source board 50 can be a conventional LED light source board, which has multiple LED beads. (Refer to...) Figure 2 The lamp body 10 has two opposing first slots 11 inside. A fixing plate 12 is positioned between the end of each first slot 11 furthest from the opening and the inner wall of the lamp body 10. It can be understood that the fixing plate 12 is horizontally positioned perpendicular to the two side walls of the lamp body 10, such that the locking position formed by the two first slots 11 is located between the two side walls of the lamp body 10 and at a certain distance from them, approximately equal to the width of the fixing plate 12. (Refer to...) Figure 3 Two ears 41 extend from one end of the power board 40 to both sides. The end of the power board 40 away from the ears 41 is fixed in the first slot 11, and the two ears 41 abut against the end face of the first slot 11. The ears 41 prevent the power board 40 from sliding inward into the lamp body 10 and causing displacement, thus avoiding safety accidents. The first end cover 20 has two opposing second slots 21, and the two ears 41 are fixed in the second slots 21. In this way, the power board 40 can be fixed by the first end cover 20, preventing the power board 40 from coming outward.

[0039] like Figure 2 As shown, in some preferred embodiments, the lamp body 10 is provided with a third slot 13, and the light source board 50 is fixed in the third slot 13. The above installation method is simple and convenient, making the light source board 50 easier to install and remove.

[0040] In some embodiments, the lamp body 10 can be assembled from a lamp housing and a lamp shade. The lamp housing can be made of stainless steel or aluminum alloy, or other materials commonly used for lamp bodies; the lamp shade can be made of acrylic or other materials, and the two can be assembled using conventional bonding methods to form the lamp body 10. In some preferred embodiments, the lamp body 10 can also be integrally molded and made of a light-transmitting material. Figure 2As shown, the two ends of the third slot 13 extend towards the inner wall of the lamp body 10, respectively, with a first inclined surface 14 and a second inclined surface 15. Both the first inclined surface 14 and the second inclined surface 15 are inclined towards the light-emitting surface along the third slot 13 towards the inner wall of the lamp body 10. Thus, both the first inclined surface 14 and the second inclined surface 15 are inclined towards the light source plate 50, which can form a reflective surface and improve the lighting efficiency.

[0041] In some preferred embodiments, such as Figure 4 The first end cap 20 has two opposing fourth slots 22, and the first inclined surface 14 and the second inclined surface 15 are respectively fixed in the two fourth slots 22. Correspondingly, the second end cap 30 also has two opposing fourth slots 22 for engaging the first inclined surface 14 and the second inclined surface 15, making the engagement between the lamp body 10 and the two end caps more secure.

[0042] like Figures 4-5 , Figure 7 As shown, the first end cap 20 has a first slot 23, and the first slot 23 has a through hole 24 for the power cord 60 to pass through. A stepped portion 25 is provided between the first slot 23 and the through hole 24. The power cord 60 is used to supply power to the tri-proof lamp and is electrically connected to the power supply and mainboard circuitry on the power board 40. The through hole 24 extends outward from the first end cap 20 to form a second slot 26. The power cord 60 has a plug 61 and a snap-fit ​​portion 62. The plug 61 snaps into the second slot 26, and the snap-fit ​​portion 62 abuts against the stepped portion 25. After the power cord 60 is assembled using the above structure, glue is applied to the first slot 23, ensuring that the height of the first slot 23 is higher than the stripped height of the power cord 60 wire. This allows the glue to cover the wire, achieving better sealing performance and enabling the tri-proof lamp to reach an IP67 rating.

[0043] like Figures 1-2 , Figure 8 As shown, in some embodiments, the lamp body 10 is further provided with a sliding groove 16 and a mounting bracket 70 that can slide along the sliding groove 16. The mounting bracket 70 includes a bracket body 71 and two bracket arms 72 respectively disposed at both ends of the bracket body 71. The bracket arms 72 are perpendicular to the bracket body 71, and each bracket arm 72 is bent to form a hook portion 73. A sliding groove 16 is provided on each side of the lamp body 10, and each hook portion 73 is engaged and fixed with the sliding groove 16 on both sides. That is, each hook portion 73 is placed into a corresponding sliding groove 16, and the lamp body 10 is clamped between the two bracket arms 72 of the mounting bracket 70. The bracket body 71 is provided with mounting holes 74 to facilitate installation and fixation with screws.

[0044] like Figure 4 and Figure 6As shown, both the first end cap 20 and the second end cap 30 are provided with two oppositely arranged protrusions 27. The protrusions 27 are engaged with the sliding groove 16, thereby making the connection between the two end caps and the lamp body 10 tighter and further improving the sealing performance.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A three-proof lamp, characterized by, The lamp includes a lamp body (10), a first end cap (20), a second end cap (30), a power board (40), and a light source board (50). The first end cap (20) and the second end cap (30) are respectively fitted onto both ends of the lamp body (10), and the light source board (50) is installed inside the lamp body (10). The lamp body (10) has two opposing first slots (11), and a fixing plate (12) is provided between the end of the two first slots (11) away from the opening and the inner wall of the lamp body (10). The first end cap (20) has two opposing second slots (21). One end of the power board (40) extends to both sides and is provided with two ears (41). The end of the power board (40) away from the ears (41) is fixed in the first slot (11), and the two ears (41) abut against the end face of the first slot (11), and the two ears (41) are fixed in the second slot (21).

2. The tri-proof luminaire of claim 1, wherein, The lamp body (10) is provided with a third slot (13), and the light source plate (50) is fixed in the third slot (13).

3. A tri-proof luminaire as claimed in claim 2, characterized in that The two ends of the third slot (13) extend toward the inner wall of the lamp body (10) respectively, and a first inclined surface (14) and a second inclined surface (15) are provided. The first inclined surface (14) and the second inclined surface (15) are both inclined toward the light-emitting surface along the direction of the third slot (13) toward the inner wall of the lamp body (10).

4. The tri-proof luminaire of claim 3, wherein, The first end cap (20) has two opposing fourth slots (22), and the first inclined surface (14) and the second inclined surface (15) are respectively fixed in the two fourth slots (22).

5. The tri-proof luminaire of claim 1, wherein, The first end cap (20) has a first slot (23) inside, and a through hole (24) for the power cord (60) to pass through is provided inside the first slot (23). A stepped portion (25) is provided between the first slot (23) and the through hole (24).

6. A tri-proof luminaire as claimed in claim 5, characterized in that The through hole (24) extends outward from the first end cap (20) to provide a second slot (26); the power cord (60) is provided with a plug (61) and a snap-fit ​​part (62), the plug (61) is snapped into the second slot (26), and the snap-fit ​​part (62) abuts against the stepped part (25).

7. The tri-proof luminaire of claim 1, wherein, The lamp body (10) is also provided with a slide groove (16) and a mounting bracket (70) that can slide along the slide groove (16).

8. A tri-proof luminaire as claimed in claim 7, characterized in that The mounting bracket (70) includes a bracket body (71) and two bracket arms (72) respectively disposed at both ends of the bracket body (71). The bracket arms (72) are arranged perpendicularly to the bracket body (71), and each bracket arm (72) is bent to form a hook portion (73). A sliding groove (16) is provided on each side of the lamp body (10), and each hook portion (73) is engaged with the sliding groove (16).

9. A tri-proof luminaire as claimed in claim 8, characterized in that The bracket body (71) is provided with mounting holes (74).

10. A tri-proof lighting fixture as described in claim 7, characterized in that, Both the first end cap (20) and the second end cap (30) are provided with two oppositely arranged protrusions (27), which are engaged with the slide groove (16).