A three-proof lamp
By combining modular design with guide rails, the problems of low maintenance efficiency and easy seal failure in traditional tri-proof lights are solved, enabling convenient maintenance and efficient replacement, and improving the service life and reliability of tri-proof lights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TOP LIGHTING (HUIZHOU) CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional tri-proof lights are inefficient and difficult to operate when repairing and replacing key components, and the conventional end sealing method is prone to failure, affecting the lifespan and reliability of the lights in harsh environments.
The modular design integrates the driver, emergency control circuit, and microwave sensor onto the circuit board. The circuit board can be pushed and pulled laterally via guide rails. Combined with a detachable lamp source board and end sealing components, the design utilizes a shape memory alloy ring spring and a double sealing ring to achieve convenient maintenance and long-term sealing.
It enables convenient maintenance and efficient replacement of tri-proof lights, simplifies the maintenance process, improves maintenance efficiency, ensures long-term sealing reliability, and extends the service life of the lights in harsh environments.
Smart Images
Figure CN224470180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, specifically a tri-proof lamp. Background Technology
[0002] Rugged lights have excellent sealing performance, are waterproof, dustproof, and corrosion-resistant, and are widely used in factories, tunnels, subway stations, basements, and other places. Traditional rugged lights often require complete disassembly or sequential disassembly of the lamp cover, lamp source board, and circuit board to replace key components when repairing the driver, sensor, or LED beads. This is inefficient, difficult to operate, and can easily damage the sealing structure. At the same time, conventional end sealing methods are not only cumbersome to disassemble, but are also prone to failure under long-term hot and cold cycles, affecting the lifespan and reliability of the lights in harsh environments such as humidity and dust. Utility Model Content
[0003] To solve the above problems, this utility model provides a tri-proof lamp, comprising:
[0004] The base has an axially extending guide rail inside its cavity;
[0005] The circuit board assembly includes a circuit board, a driver, an emergency control circuit, an energy storage device, and a microwave sensor. The circuit board can be inserted into a guide rail and moved laterally. The driver, emergency control circuit, energy storage device, and microwave sensor are located on the circuit board.
[0006] The light source board is detachably and fixedly installed below the circuit board assembly and is electrically connected to the circuit board assembly. Several LED beads are arranged in an array on the lower surface of the light source board.
[0007] The lamp cover is sealed and fits under the base to form a cavity with the base, and the lamp source board and circuit board assembly are housed in the cavity.
[0008] The end sealing assembly includes a first plug, a second plug, a first end cap, and a second end cap. After the lamp cover and the base are sealed together, they form a lamp body assembly. The first plug and the second plug are respectively fitted onto both ends of the lamp body assembly with an interference fit. Radial sealing is achieved through axial clamping force, and they are detachably fixed to the base through fasteners. The joint interfaces between the first plug, the second plug, and the lamp body assembly are provided with shape memory alloy annular springs. The first end cap is detachably fixed to the first plug through a first connecting buckle, and the second end cap is detachably fixed to the second plug through a second connecting buckle.
[0009] Preferably, the first connecting buckle includes a first snap-fit component and a second snap-fit component. The upper and lower ends of the first snap-fit component are snap-fitted with the first plug. The rotating shaft of the first snap-fit component is embedded in the slot of the second snap-fit component. The upper and lower ends of the second snap-fit component are snap-fitted with the first plug.
[0010] Preferably, the second connecting buckle includes a third snap-fit component and a fourth snap-fit component. The upper and lower ends of the third snap-fit component are snap-fitted with the second plug. The rotating shaft of the third snap-fit component is embedded in the slot of the fourth snap-fit component. The upper and lower ends of the fourth snap-fit component are snap-fitted with the second plug.
[0011] Preferably, the base has a snap-fit groove along its lower edge in the circumferential direction, and the lampshade has a rib along its corresponding edge in the circumferential direction. When the lampshade and the base are closed, the rib is embedded in the snap-fit groove to form a snap-fit engagement.
[0012] Preferably, a first sealing ring is provided between the edge of the lampshade and the contact surface of the base, and a second sealing ring is provided between the contact surfaces of the first plug, the second plug and the assembly.
[0013] Preferably, the first sealing ring and the second sealing ring are made of any material selected from thermally expanded microcapsules, silicone, and rubber.
[0014] Preferably, the circuit board is also provided with a three-position terminal block and a two-position terminal block at both ends. The three-position terminal block includes a live wire terminal L, a neutral wire terminal N, and a ground terminal PE, which are used to connect to external mains power and supply power to the driver and emergency control circuit. The two-position terminal block includes dimming signal input terminals DIM+ and DIM- and microwave induction signal output terminals PIR+ and PIR-, which are used to receive external dimming control signals and output the detection signals of the microwave sensor to external control equipment.
[0015] Preferably, the first plug has a waterproof connector and a waterproof switch on its cover surface, and the second plug has a waterproof protective coil on its cover surface.
[0016] Preferably, a limiting clip is provided between the guide rail and the circuit board to ensure that the circuit board is completely detached from the guide rail.
[0017] Preferably, the lampshade comprises, from the inside out, a PC resin diffusion layer, a wear-resistant layer, and a self-cleaning layer.
[0018] The beneficial effects are as follows: This application provides a tri-proof lamp with good sealing performance and convenient maintenance. Through modular design, the driver, emergency control circuit, energy storage device and microwave sensor are integrated on the circuit board. The circuit board is inserted into the guide rail to realize the lateral push and pull movement of the entire circuit board. This makes the installation, replacement or maintenance of core electronic components such as driver, emergency control circuit, energy storage device, microwave sensor and so on extremely convenient, without the need to disassemble the entire lamp, greatly simplifying the maintenance process. The lamp source board is independently and detachably fixed under the circuit board assembly. This allows for the replacement of LED beads or the entire lamp source board without disassembling the electronic drive part, further improving maintenance efficiency. The end sealing components are fitted at both ends of the lamp body assembly in an interference fit and are designed with shape memory alloy ring springs. This not only facilitates the inspection and replacement of the end sealing components, but also ensures long-term sealing reliability. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0022] In the picture:
[0023] 1. Base; 11. Guide rail;
[0024] 2. Circuit board assembly; 21. Circuit board; 22. Driver; 23. Emergency control circuit; 24. Microwave sensor; 25. Energy storage device; 26. Two-position terminal block; 27. Three-position terminal block;
[0025] 3. Light source board;
[0026] 4. Lampshade;
[0027] 5. End sealing assembly; 51. First plug; 52. Second plug; 53. First cap; 531. Waterproof connector; 532. Waterproof switch; 54. Second cap; 541. Waterproof protective coil; 55. First connecting buckle; 551. First snap-fit; 552. Second snap-fit; 56. Second connecting buckle; 561. Third snap-fit; 562. Fourth snap-fit; 57. Shape memory alloy ring spring; 58. Second sealing ring. Detailed Implementation
[0028] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0029] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.
[0030] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a schematic diagram of the exploded structure of this utility model. This embodiment provides a tri-proof lamp, including a base 1, a circuit board assembly 2, a lamp source board 3, a lamp cover 4, and an end sealing assembly 5. The base 1 has an axially extending guide rail 11 inside its cavity, which adopts a dovetail or T-slot structure. The circuit board assembly 2 includes a circuit board 21, a driver 22, an emergency control circuit 23, an energy storage device 25, and a microwave sensor 24. The circuit board 21 has a dovetail tenon or a T-shaped protrusion. By engaging the dovetail tenon with the dovetail slot structure or the T-shaped protrusion with the T-slot structure, the circuit board 21 can be inserted into the guide rail 11 for lateral pushing and pulling. A limiting clip is provided between the guide rail 11 and the circuit board 21 to ensure that the circuit board 21 is completely detached from the guide rail 11. The driver 22, the emergency control circuit 23, the energy storage device 25, and the microwave sensor 24 are mounted on the circuit board 21. The emergency control circuit 23 is built into the circuit board 21. The circuit board 21 is equipped with an energy storage device 25 to ensure automatic switching and emergency lighting during mains power outages. The integrated microwave sensor 24 enables the lamp to have human body sensing function, which can automatically control the switch or dimming, achieving energy saving and intelligent management. The circuit board 21 is also equipped with a three-position terminal block 27 and a two-position terminal block 26 at both ends. The three-position terminal block 27 includes a live wire terminal L, a neutral wire terminal N, and a ground terminal PE, which are used to connect to external mains power and power the driver 22 and the emergency control circuit 23. The two-position terminal block 26 includes dimming signal input terminals DIM+ and DIM- and microwave sensing signal output terminals PIR+ and PIR-, which are used to receive external dimming control signals and output the detection signal of the microwave sensor 24 to external control equipment. The separation of strong and weak currents can reduce the risk of interference and improve safety. The standardized terminal block makes field wiring fast, standardized, and reliable.
[0032] The circuit board assembly 2 can be pushed and pulled laterally through the guide rail 11 in the base 1, which makes the installation, replacement or maintenance of core electronic components such as driver 22, emergency control circuit 23, energy storage device 25, microwave sensor 24 extremely convenient. There is no need to disassemble the entire lamp, which greatly simplifies the maintenance process and reduces maintenance costs and downtime.
[0033] The light source board 3 is detachably and fixedly installed below the circuit board assembly 2 and is electrically connected to the circuit board assembly 2. Several LED beads are arranged in an array on the lower surface of the light source board 3. The light source board 3 is independently and detachably fixed below the circuit board assembly 2, which allows for the replacement of individual LED beads or the entire light source board 3 without disassembling the electronic drive part, further improving maintenance efficiency.
[0034] The lampshade 4 is sealed and covers the bottom of the base 1, forming a cavity that encloses the base 1. The lamp source board 3 and the circuit board assembly 2 are housed within the cavity. A snap-fit groove is provided along the circumferential direction along the lower edge of the base 1, and corresponding ribs are provided along the circumferential direction on the edge of the lampshade 4. When the lampshade 4 is closed with the base 1, the ribs are inserted into the snap-fit groove to form a snap-fit engagement. A first sealing ring is provided between the edge of the lampshade 4 and the contact surface of the base 1. The lampshade 4 and the base 1 form a first mechanical sealing barrier through the engagement groove and the ribs, and together with the first sealing ring, form a double sealing barrier, effectively preventing moisture and dust from entering through the main joint. The lampshade 4 comprises, from the inside out, a PC resin diffusion layer, a wear-resistant layer, and a self-cleaning layer. The PC resin diffusion layer provides a uniform and soft light distribution, reducing glare; the wear-resistant layer improves surface hardness, resists physical scratches and wear, and extends service life; the self-cleaning layer reduces the adhesion of dust and oil.
[0035] See also Figure 2The end sealing assembly 5 includes a first plug 51, a second plug 52, a first cap 53, and a second cap 54. After the lamp cover 4 and the base 1 are sealed together, a lamp body assembly is formed. The first plug 51 and the second plug 52 are respectively fitted onto both ends of the lamp body assembly with an interference fit. Axial clamping force is used to achieve radial sealing, forming the first mechanical sealing barrier. The lamp body assembly is detachably fixed to the base 1 by fasteners. The joint interfaces of the first plug 51, the second plug 52, and the lamp body assembly are provided with shape memory alloy annular springs 57. The shape memory alloy annular springs 57 are made of Ni-Ti alloy with a yield strength of 300-500MPa and a phase transformation temperature of 60-80℃. When the ambient temperature exceeds a set threshold, the shape memory alloy annular springs 57 will activate. The sheet 57 undergoes thermal deformation, generating additional compressive stress of 0.5-1.2 N / mm², effectively compensating for the differences in thermal expansion and contraction of different materials, maintaining stable contact pressure during temperature changes, preventing sealing failure due to thermal stress, and significantly improving sealing reliability under long-term environmental adaptability; a second sealing ring 58 is provided between the contact surfaces of the first plug 51, the second plug 52 and the assembly to form a second key sealing defense line, ensuring absolute sealing at the end; the first sealing ring and the second sealing ring 58 are made of any material among thermal expansion microcapsules, silicone and rubber, preferably thermal expansion microcapsules containing temperature-sensitive polymers. When the temperature inside the cavity is >60℃, the microcapsules automatically expand and fill the microscopic gap between the lamp cover 4 and the base 1;
[0036] See also Figure 2 The first plug 53 is detachably and fixedly connected to the first plug 51 via a first connecting buckle 55, and the second plug 54 is detachably and fixedly connected to the second plug 52 via a second connecting buckle 56. The first connecting buckle 55 includes a first engaging member 551 and a second engaging member 552. The upper and lower ends of the first engaging member 551 engage with the first plug 51, and the rotating shaft of the first engaging member 551 is embedded in the slot of the second engaging member 552. The upper and lower ends of the second engaging member 552 engage with the first plug 53. The second connecting buckle 56 includes a third engaging member 561 and a fourth engaging member 562. The upper and lower ends of the third engaging member 561 engage with the second plug 52, and the rotating shaft of the third engaging member 561 is embedded in the slot of the fourth engaging member 562. The upper and lower ends of the fourth engaging member 562 engage with the second plug 54. This design allows for tool-free disassembly or replacement of the plugs and plugs, facilitating quick inspection and replacement of the end sealing assembly 5.
[0037] The first cover 53 has a waterproof connector 531 and a waterproof switch 532 on its cover surface, and the second cover 54 has a waterproof protective coil 541 on its cover surface. This design can specifically address the sealing issues of external cable entry and switch operation points, and block common water seepage points.
[0038] In summary, this application provides a tri-proof lamp with good sealing performance and convenient maintenance. Through modular design, the driver 22, emergency control circuit 23, energy storage device 25 and microwave sensor 24 are integrated on the circuit board 21. The circuit board 21 is inserted into the guide rail 11 to realize the lateral push and pull movement of the entire circuit board 21. This makes the installation, replacement or maintenance of core electronic components such as driver 22, emergency control circuit 23, energy storage device 25 and microwave sensor 24 extremely convenient, without the need to disassemble the entire lamp, greatly simplifying the maintenance process. The lamp source board 3 is independently and detachably fixed under the circuit board assembly 2, which allows for the replacement of LED beads or the entire lamp source board 3 without disassembling the electronic drive part, further improving maintenance efficiency. The end sealing assembly 5 is fitted at both ends of the lamp body assembly in an interference fit and is designed with shape memory alloy annular springs 57, which not only facilitates the inspection and replacement of the end sealing assembly 5, but also ensures long-term sealing reliability.
[0039] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A tri-proof lamp, characterized in that, include: The base has an axially extending guide rail inside its cavity; The circuit board assembly includes a circuit board, a driver, an emergency control circuit, an energy storage device, and a microwave sensor. The circuit board can be inserted into the guide rail and moved laterally. The driver, emergency control circuit, energy storage device, and microwave sensor are disposed on the circuit board. A light source board is detachably and fixedly installed below the circuit board assembly and electrically connected to the circuit board assembly. Several LED beads are arranged in an array on the lower surface of the light source board. The lamp cover is sealed and fitted under the base and surrounds the base to form a receiving cavity, and the lamp source board and circuit board assembly are covered in the receiving cavity; The end sealing assembly includes a first plug, a second plug, a first end cap, and a second end cap. After the lamp cover and the base are sealed together, they form a lamp body assembly. The first plug and the second plug are respectively fitted onto both ends of the lamp body assembly with an interference fit, achieving radial sealing through axial clamping force, and are detachably fixed to the base through fasteners. The joint interfaces of the first plug, the second plug, and the lamp body assembly are all provided with shape memory alloy annular springs. The first end cap is detachably fixed to the first plug through a first connecting buckle, and the second end cap is detachably fixed to the second plug through a second connecting buckle.
2. The tri-proof lamp according to claim 1, characterized in that, The first connecting buckle includes a first snap-fit component and a second snap-fit component. The upper and lower ends of the first snap-fit component are snap-fitted with the first plug. The rotating shaft of the first snap-fit component is embedded in the slot of the second snap-fit component. The upper and lower ends of the second snap-fit component are snap-fitted with the first plug.
3. The tri-proof lamp according to claim 1, characterized in that, The second connecting buckle includes a third snap-fit component and a fourth snap-fit component. The upper and lower ends of the third snap-fit component are engaged with the second plug. The rotating shaft of the third snap-fit component is embedded in the slot of the fourth snap-fit component. The upper and lower ends of the fourth snap-fit component are engaged with the second plug.
4. The tri-proof lamp according to claim 1, characterized in that, The base has a snap-fit groove along its lower edge, and the lampshade has a rib along its corresponding edge. When the lampshade is closed with the base, the rib is embedded in the snap-fit groove to form a snap-fit fit.
5. The tri-proof lamp according to claim 1, characterized in that, A first sealing ring is provided between the edge of the lampshade and the contact surface of the base, and a second sealing ring is provided between the contact surfaces of the first plug, the second plug and the assembly.
6. The tri-proof lamp according to claim 5, characterized in that, The first sealing ring and the second sealing ring are made of any material among thermally expanded microcapsules, silicone, and rubber.
7. The tri-proof lamp according to claim 1, characterized in that, The circuit board is also provided with a three-position terminal block and a two-position terminal block at both ends. The three-position terminal block includes a live wire terminal L, a neutral wire terminal N, and a ground terminal PE, which are used to connect to external mains power and supply power to the driver and emergency control circuit. The two-position terminal block includes dimming signal input terminals DIM+ and DIM- and microwave induction signal output terminals PIR+ and PIR-, which are used to receive external dimming control signals and output the detection signals of the microwave sensor to external control equipment.
8. The tri-proof lamp according to claim 1, characterized in that, The first plug has a waterproof connector and a waterproof switch on its cover surface, and the second plug has a waterproof protective coil on its cover surface.
9. The tri-proof lamp according to claim 1, characterized in that, A limiting device is provided between the guide rail and the circuit board to ensure that the circuit board is completely detached from the guide rail.
10. The tri-proof lamp according to claim 1, characterized in that, The lampshade comprises, from the inside out, a PC resin diffusion layer, a wear-resistant layer, and a self-cleaning layer.