Long-life LED traffic signal lamp
By using a split protective frame and modular design, the LED traffic lights solve the problem of easily damaged lamp covers, extend their service life, reduce maintenance costs, and adapt to the needs of different traffic management scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JIAOYUAN TECH CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-21
AI Technical Summary
The covers of existing LED traffic lights are easily affected by external impacts, which can lead to a decrease in sealing performance, shorten their service life, and make maintenance complex and costly.
It adopts a split protective frame and modular design, including detachable lamp covers and lamp holders with threaded connections, and the assembly of the protective frame with buckles and threaded fasteners, forming a double physical barrier, combined with a mobile body to adapt to different traffic management needs.
It effectively protects the internal light-emitting panel from moisture damage, extends its service life, reduces maintenance costs, improves maintenance convenience, and adapts to the needs of urban roads and temporary traffic control.
Smart Images

Figure CN224536593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traffic equipment technology, specifically to a long-life LED traffic signal light. Background Technology
[0002] Traffic lights are key equipment in urban traffic management, and their reliability and lifespan directly affect traffic safety and efficiency. Currently, LEDs (light-emitting diodes) have become the mainstream light source for traffic lights due to their advantages of energy saving, high brightness, and long lifespan.
[0003] However, existing LED traffic lights still have shortcomings in their overall structural design: traditional traffic light covers are usually directly exposed, making them susceptible to damage from impacts such as flying stones and hail. This leads to moisture damage to the internal LED light-emitting panels due to decreased sealing, shortening the actual lifespan of the entire light. Replacement often requires disassembling the entire light head, which is complex, time-consuming, labor-intensive, and results in high spare parts costs.
[0004] Therefore, how to optimize the structural design to improve the overall protection capability of traffic lights, reduce maintenance costs, and expand their application flexibility while ensuring the long lifespan advantage of LED light sources is a technical problem that urgently needs to be solved in this field. Utility Model Content
[0005] The purpose of this utility model is to provide a long-life LED traffic signal light. By adding a detachable protective frame and adopting a modular design, the durability and maintainability of the product are significantly improved. At the same time, by combining with a mobile body, the application flexibility is achieved.
[0006] The technical solution adopted by this utility model to solve the above problems is: a long-life LED traffic signal light, including a lamp holder, a light-emitting panel, a lamp cover and a protective frame. The light-emitting panel is disposed on the lamp holder, the lamp cover is connected and fixed to the front side of the lamp holder to cover the light-emitting panel, and the protective frame is sleeved on the outside of the lamp cover.
[0007] Preferably, the protective frame adopts a split structure, which includes two sets of side frames and one set of end frames. The two sets of side frames are symmetrically arranged on both sides of the lampshade, and the end frames are snapped and fixed to the ends of the two sets of side frames away from the lamp holder.
[0008] Preferably, the side frame has a rectangular hole, and the end frame adopts a hexagonal structure design, with a pair of buckles on each of its six sides that are adapted to engage with the edge of the rectangular hole.
[0009] Preferably, the side frame is connected and fixed to the lampshade by threaded fasteners.
[0010] Preferably, the lampshade and lamp holder are detachably connected and fixed via a threaded connection structure.
[0011] Preferably, the lamp holder connection adapter is equipped with a mounting housing, the mounting housing has a mounting groove, the lamp holder can be detachably fixed in the mounting groove, and a canopy is provided above the mounting groove.
[0012] Preferably, the mounting housing is adapted to a mobile body, the mobile body is provided with a lamp post, the lamp post is vertically provided with three sets of mounting housings, and the back of the mounting housing is fixed to the lamp post by connecting pieces and threaded fasteners.
[0013] Compared with the prior art, this utility model has the following advantages and effects:
[0014] This invention adds a split protective frame (side frame and hexagonal end frame) to the outside of the lampshade, forming a double physical barrier between the protective frame and the lampshade. This effectively resists impacts from flying stones, hail, and other external forces, preventing the lampshade from being directly damaged and thus reducing its sealing performance. This protects the internal light-emitting panel from moisture damage and significantly extends the overall lifespan of the lamp. The modular structure design (the lampshade and lamp holder are detachably connected by a threaded connection, and the protective frame uses a split assembly method with snap-fit and threaded fasteners) improves maintenance convenience and reduces maintenance costs. Furthermore, this invention is also compatible with a mobile body, allowing it to meet the dual needs of fixed signal indication and emergency temporary control on urban roads, improving its adaptability to various traffic management scenarios. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the signal light in Embodiment 1 of this utility model.
[0016] Figure 2 This is an exploded view of the signal light structure in Embodiment 1 of this utility model.
[0017] Figure 3 This is a schematic diagram of the structure of the mounting shell in Embodiment 2 of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the mobile body in Embodiment 3 of this utility model.
[0019] Figure 5 This is a schematic diagram of the connection structure between the mounting housing and the lamp post in Embodiment 3 of this utility model.
[0020] Figure 6 This is a schematic diagram illustrating the operating principle of the mobile body in Embodiment 3 of this utility model.
[0021] Attached Figures: Lamp holder 11, Light-emitting panel 12, Lampshade 13, Protective frame 14, Threaded connection structure 15, Through hole 16, Screw hole 17, Side frame 21, End frame 22, Rectangular hole 23, Buckle 24, Threaded fastener 25, Mounting housing 26, Mounting groove 27, Eaves 28, Moving body 31, Lamp post 32, Limiting protrusion 321, Connecting piece 33, Power supply 34, Control box 35, Cable 36, Support leg 37, Roller 38, Handrail 39. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0023] Example 1: See Figure 1 and Figure 2 This embodiment relates to a long-life LED traffic signal light, specifically used as a signal indicator in urban roads and temporary traffic control scenarios. It aims to improve the equipment's impact resistance, weather resistance, and ease of on-site maintenance through structural protection and modular design. The signal light specifically includes a lamp holder 11, a light-emitting panel 12, a lamp cover 13, and a protective frame 14. The light-emitting panel 12 (typically a PCB board integrating multiple high-brightness LED beads) is mounted on the lamp holder 11. The lamp cover 13 (made of transparent materials such as PC) is connected and fixed to the front of the lamp holder 11 to cover the light-emitting panel 12 and protect it. The protective frame 14 is fitted over the outside of the lamp cover 13.
[0024] Specifically, in this embodiment, the protective frame 14 provides an additional physical barrier for the lampshade 13. For example, in the event of hail, the protective frame 14 can withstand the impact of large hailstones, thereby preventing the lampshade 13 from being directly damaged and broken, ensuring the safety of the internal light-emitting panel 12 and the normal operation of the signal light. This design directly addresses the problem of insufficient protection mentioned in the background art, effectively extending the lifespan of the entire lamp by adding the protective frame 14 and the lampshade 13 to protect the core component (light-emitting panel 12).
[0025] In this embodiment, the lampshade 13 and the lamp holder 11 are detachably connected and fixed by a threaded connection structure 15. The threaded connection structure 15 includes an external thread on the outer wall of the front end of the lamp holder 11 and an internal thread on the inner wall of the rear end of the lampshade 13. When the light-emitting panel 12 needs to be repaired or replaced, the repair personnel do not need to use complicated tools. They can simply unscrew the lampshade 13 like unscrewing a bottle cap to access the light-emitting panel 12. After the operation is completed, the lampshade 13 can be screwed back on and tightened.
[0026] The protective frame 14 adopts a split structure, comprising two sets of side frames 21 and one set of end frames 22. The two sets of side frames 21 are symmetrically arranged on both sides of the lampshade 13, and the end frames 22 are snapped and fixed to the ends of the two sets of side frames 21 away from the lamp holder 11. The side frames 21 have rectangular holes 23, and the end frames 22 have a hexagonal structure design, with a pair of snap fasteners 24 on each of their six sides that fit and engage with the edges of the rectangular holes 23. Specifically, the installation steps for the protective frame 14 are detailed below:
[0027] Step 1: Align the two sets of side frames 21 with the left and right sides of the lampshade 13 respectively;
[0028] Step 2: Use a threaded fastener 25 (a stainless steel screw in this embodiment) to pass through the preset through hole 16 on the side frame 21 and screw it into the corresponding screw hole 17 on the side wall of the lampshade 13. Do not tighten it completely at this time; leave a certain gap.
[0029] Step 3: Take the hexagonal end frame 22 and align it with the front end of the two sets of side frames 21. Using the elasticity of the material, press the six pairs of buckles 24 on the end frame 22 into the corresponding rectangular holes 23 on the side frames 21 one by one. The buckles 24 will make a crisp sound when they engage with the edges of the rectangular holes 23. Confirm that they are engaged in place.
[0030] Step 4: Finally, tighten all the screws that were not tightened in step 2. In this way, the side frame 21 is firmly fixed to the lampshade 13, and the end frame 22 is also stably clamped by the tightened side frame 21, forming a sturdy cage-like protective structure.
[0031] The installation process is logically clear and easy to operate, enabling rapid assembly and disassembly. Even if a frame is damaged, it can be easily replaced locally without replacing the entire frame, thus reducing maintenance costs.
[0032] Example 2: See Figure 3 In this embodiment, the lamp holder 11 is connected to a mounting housing 26. The mounting housing 26 has a mounting groove 27, and the lamp holder 11 (via threaded fasteners 25, etc.) is detachably fixed in the mounting groove 27. A canopy 28 is provided above the mounting groove 27. The canopy 28 above the mounting housing 26 provides protection for the traffic lights, preventing damage from harsh weather conditions such as rain, direct sunlight, and strong winds. This not only ensures the stable operation of the traffic lights but also significantly extends their service life. Furthermore, the canopy 28 also optimizes the driver's visual experience. In bright sunlight, reflections from traffic signal components can severely interfere with the driver's vision, increasing the risk of traffic accidents. The canopy 28 effectively blocks these reflections, ensuring that the driver can clearly see the signal indications while driving, thereby guaranteeing traffic safety.
[0033] Example 3: See Figure 4 In this embodiment, the mounting housing 26 is adapted to a mobile body 31, and the mobile body 31 is provided with a light post 32. The light post 32 has three sets of mounting housings 26 vertically arranged, respectively used to install red, yellow, and green signal light modules. See also... Figure 5 The back of the mounting housing 26 is fixed to the lamp post 32 by a connecting piece 33 and threaded fasteners 25. Several limiting protrusions 321 are provided on the lamp post 32 to effectively prevent the mounting housing 26 from sliding down the lamp post 32. A power supply 34 (such as a high-capacity battery or an external AC power interface) is provided on the mobile body 31. A control box 35 is fixedly installed on the lamp post 32. The power supply 34, control box 35, and each group of signal lights are electrically connected via cables 36. The control box 35 contains a signal light controller, which can realize standard red, yellow, and green light switching logic, and can also be set to modes such as yellow flashing warning as needed (this is existing technology and will not be described further).
[0034] Furthermore, for ease of movement and deployment, the mobile body 31 is equipped with two sets of support legs 37 on the front side of its bottom and two sets of wear-resistant rollers 38 on the rear side. See also Figure 6 During transportation, the support leg 37 can be lifted by the handrail 39 set at the front end of the mobile body 31, and then the mobile body 31 can be pushed or pulled by the roller 38. When the mobile body 31 reaches the designated position, the handrail 39 can be lowered so that the support leg 37 touches the ground to complete the deployment work, so that this utility model can quickly respond to emergency use needs such as temporary traffic control.
[0035] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.
Claims
1. A long-life LED traffic signal light, characterized in that, It includes a lamp holder, a light-emitting panel, a lampshade, and a protective frame. The light-emitting panel is mounted on the lamp holder, the lampshade is connected and fixed to the front of the lamp holder to cover the light-emitting panel, and the protective frame is fitted over the outside of the lampshade.
2. The long-life LED traffic signal light according to claim 1, characterized in that: The protective frame adopts a split structure, which includes two sets of side frames and one set of end frames. The two sets of side frames are symmetrically arranged on both sides of the lampshade, and the end frames are snapped and fixed to the ends of the two sets of side frames away from the lamp holder.
3. A long-life LED traffic signal light according to claim 2, characterized in that: The side frame has a rectangular hole, and the end frame adopts a hexagonal structure design, with a pair of buckles on each of its six sides that fit and engage with the edge of the rectangular hole.
4. A long-life LED traffic signal light according to claim 2, characterized in that: The side frame is connected and fixed to the lampshade by threaded fasteners.
5. A long-life LED traffic signal light according to claim 1, characterized in that: The lampshade and lamp holder are detachably connected and fixed via a threaded connection structure.
6. A long-life LED traffic signal light according to claim 1, characterized in that: The lamp holder connection adapter is equipped with a mounting housing, which has a mounting groove. The lamp holder can be detachably fixed in the mounting groove, and a canopy is provided above the mounting groove.
7. A long-life LED traffic signal light according to claim 6, characterized in that: The mounting housing is adapted to a mobile body, which is equipped with a lamp post. The lamp post has three sets of mounting housings arranged vertically. The back of the mounting housing is fixed to the lamp post by connecting pieces and threaded fasteners.