A PCB circuit board for LED lights
Patent Information
- Application Number
- CN202521861504.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-30
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-08-30
AI Technical Summary
[0003]本实用新型的目的在于提供一种LED灯用PCB线路板，通过设置的快速拆装结构，解决了线路板安装不便的问题
本实用新型通过设置的定位块、楔形块及弹簧的配合结构，当定位块完全穿过定位槽后，弹簧自动推动楔形块向两侧滑动并卡入圆块顶部的卡槽内，形成机械自锁，无需任何工具辅助，单次按压即可完成安装，大幅提高了安装效率，同时，楔形块与卡槽的卡合结构能够有效抵抗外力，防止线路板因外力作用产生位移或松动，确保了电气连接的稳定性和散热性能的一致性；
Smart Images
Figure CN224709845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting device technology, specifically to a PCB circuit board for LED lamps. Background Technology
[0002] LED lighting fixtures are becoming increasingly popular in modern lighting applications, and the installation stability of their core component, the PCB circuit board, directly affects the overall performance and lifespan of the fixture. Currently, most LED lighting PCB circuit boards adopt a ring-shaped structure design, fixed inside the lamp housing by screws or clips. However, existing installation methods usually require additional tools for fixing, and are prone to loosening due to stress concentration under vibration or temperature changes. Some designs use positioning holes that cooperate with positioning posts inside the lamp housing to achieve initial alignment, but lack an effective self-locking mechanism, and slight displacement or deflection may still occur after installation, affecting the reliability of electrical connections and heat dissipation. As LED lighting fixtures develop towards higher power density and thinner designs, higher requirements are placed on the positioning accuracy and installation efficiency of the circuit boards. Utility Model Content
[0003] The purpose of this utility model is to provide a PCB circuit board for LED lights, which solves the problem of inconvenient circuit board installation through a quick-assembly and disassembly structure.
[0004] This utility model is achieved through the following technical solution: This utility model relates to a PCB circuit board for LED lights, comprising a ring-shaped circuit board body and a positioning block. A circular block is installed on the inner ring of the ring-shaped circuit board body. The top of the positioning block is symmetrically provided with reserved slots. A wedge block is slidably fitted in each of the two reserved slots. Each wedge block is provided with an installation slot. A spring is connected between the installation slot and the inner wall of the reserved slot. A positioning slot that matches the positioning block is provided in the circular block. A locking slot is symmetrically provided on the top of the circular block. Both locking slots are connected to the positioning slot. The two wedge blocks are respectively fitted in the corresponding locking slots.
[0005] Furthermore, a limiting groove is provided on the top of the positioning block, which is connected to the reserved groove. A slider is installed at the end of the wedge block, and the slider slides in the limiting groove.
[0006] Furthermore, the top two sides of the positioning block are provided with a first chamfer, and the outer surfaces of the two wedge blocks are provided with a second chamfer.
[0007] Furthermore, the inner walls of both mounting slots are connected with connecting strips, and the ends of the two connecting strips are connected with flanges.
[0008] Furthermore, a circular hole is provided in the middle of the positioning block, and a clearance groove is provided on the top of the positioning block. The circular hole is connected to the reserved groove and the clearance groove.
[0009] Furthermore, the ends of the two connecting strips pass through the circular holes and are located within the relief grooves.
[0010] This utility model has the following beneficial effects: This utility model utilizes a combination of a positioning block, a wedge block, and a spring. When the positioning block completely passes through the positioning groove, the spring automatically pushes the wedge block to slide to both sides and engage with the slot at the top of the round block, forming a mechanical self-locking mechanism. No tools are required; installation can be completed with a single press, significantly improving installation efficiency. At the same time, the engaging structure between the wedge block and the slot effectively resists external forces, preventing the circuit board from shifting or loosening due to external forces, thus ensuring the stability of electrical connections and the consistency of heat dissipation performance. This utility model, through the design of connecting straps and flanges, allows for easy disassembly. When disassembly is required, pulling the flange upwards from the recessed groove enables the two wedge-shaped blocks to be simultaneously pulled by the two connecting straps, overcoming the spring force and retracting into the reserved groove, thus completely disengaging them from the slot and releasing the locking of the round block. The operation is simple and labor-saving, achieving quick and non-destructive disassembly without tools, greatly improving maintenance efficiency. At the same time, it avoids damage to the circuit board or lamp housing structure during disassembly, extending the service life of the lamp.
[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of the PCB circuit board; Figure 2 This is a schematic diagram of the structure of the ring circuit board body and the circular block. Figure 3 This is a schematic diagram of the structure of the circular block and the positioning block; Figure 4 This is a schematic diagram of the internal structure of the positioning block.
[0013] In the diagram: 1. Circular circuit board body; 2. Circular block; 201. Positioning groove; 202. Slot; 3. Positioning block; 301. First chamfer; 302. Reserved groove; 303. Limiting groove; 304. Clearance groove; 305. Circular hole; 4. Wedge block; 402. Second chamfer; 5. Spring; 6. Slider; 7. Connecting strip; 8. Flange. Detailed Implementation
[0014] 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.
[0015] Please see Figures 1-4 This utility model provides a technical solution: a PCB circuit board for LED lights, including a ring-shaped circuit board body 1 and a positioning block 3. The positioning block 3 is pre-installed at a designated position inside the LED lamp housing. A circular block 2 is installed on the inner ring of the ring-shaped circuit board body 1. The circular block 2 is made of copper to ensure good thermal conductivity and structural strength. The ring-shaped circuit board body 1 is a ring-shaped printed circuit board. The circular block 2 is fixed to the inner ring of the ring-shaped circuit board body 1 by welding or pressing. The top of the positioning block 3 is symmetrically provided with reserved grooves 302, and both reserved grooves 302 are slidable. The device is equipped with wedge-shaped blocks 4, each wedge-shaped block 4 having an installation groove 401. A spring 5 connects the installation groove 401 to the inner wall of the reserved groove 302. In its natural state, the spring 5 is in an extended state, pushing the wedge-shaped block 4 outward so that it partially protrudes from the reserved groove 302. A positioning groove 201 for engaging the positioning block 3 is provided inside the circular block 2. The positioning groove 201 extends vertically through the circular block 2. The cross-sectional shape of the positioning groove 201 and the cross-sectional shape of the positioning block 3 are both square to ensure that circumferential rotation does not occur during installation. Symmetrical openings are provided at the top of the circular block 2. There are two slots 202, both of which are connected to the positioning slots 201. The two wedge blocks 4 are respectively fitted into the corresponding slots 202. When installing the annular circuit board body 1, the annular circuit board body 1 is aligned with the lamp housing, so that the positioning slots 201 of the round block 2 are fitted onto the positioning block 3. As the annular circuit board body 1 moves downward, the positioning block 3 gradually enters the positioning slot 201. At this time, the bottom of the round block 2 begins to contact and press the second chamfer 402 inclined surface of the two protruding wedge blocks 4. Under the action of the inclined surface, the two wedge blocks 4 are directed to the reserved slot. The squeezing force inside 302 overcomes the elastic force of spring 5 and slides into the reserved groove 302. When the annular circuit board body 1 is installed in place, that is, when the top of the positioning block 3 completely passes through the positioning groove 201, the positioning groove 201 no longer squeezes the wedge block 4. At this time, spring 5 pushes the two wedge blocks 4 to slide to both sides along the limiting groove 303, so that their outer parts completely pop out and are stuck into the two slots 202 on the top of the round block 2. Due to the insertion of the wedge blocks 4, the round block 2 is locked on the positioning block 3 and cannot be pulled out upwards, thus realizing the fast and reliable fixation of the circuit board.
[0016] The top of the positioning block 3 has a limiting groove 303, which is connected to the reserved groove 302. The end of the wedge block 4 is equipped with a slider 6, which slides in the limiting groove 303. When the wedge block 4 slides, the slider 6 slides along the limiting groove 303 to prevent the wedge block 4 from shifting or coming off during the sliding process. The top two sides of the positioning block 3 are provided with a first chamfer 301. The first chamfer 301 facilitates the installation guidance of the annular circuit board body 1 and facilitates the initial installation into the positioning groove 201. The outer surfaces of the two wedge blocks 4 are provided with a second chamfer 402. The second chamfer 402 allows the wedge blocks 4 to retract smoothly into the reserved groove 302 when squeezed. Due to the guiding effect of the first chamfer 301 on both sides of the top of the positioning block 3 and the second chamfer 402 on the wedge blocks 4, even if there is a slight misalignment, it can be smoothly installed.
[0017] The inner walls of the two mounting slots 401 are connected with connecting straps 7, which are made of metal wire. The ends of the two connecting straps 7 are connected with flanges 8. A round hole 305 is opened in the middle of the positioning block 3, and a relief groove 304 is opened on the top of the positioning block 3. The round hole 305 is connected to the reserved slot 302 and the relief groove 304. The ends of the two connecting straps 7 pass through the round hole 305 and are located in the relief groove 304. When disassembly is required, the flange 8 is pulled upward from the relief groove 304. The flange 8 pulls the two wedge blocks 4 simultaneously through the two connecting straps 7, overcoming the elastic force of the spring 5 and causing it to retract into the reserved slot 302, thereby disengaging from the slot 202 of the round block 2, and the entire circuit board can be taken out downward.
[0018] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A PCB circuit board for LED lights, comprising a ring-shaped circuit board body (1), characterized in that: The inner ring of the ring circuit board body (1) is equipped with a circular block (2); It also includes a positioning block (3), the top of which is symmetrically provided with a reserved groove (302), and a wedge block (4) is slidably fitted in each of the two reserved grooves (302). Each wedge block (4) is provided with an installation groove (401), and a spring (5) is connected between the installation groove (401) and the inner wall of the reserved groove (302). The circular block (2) has a positioning groove (201) that matches the positioning block (3). The top of the circular block (2) has symmetrical slots (202). Both slots (202) are connected to the positioning groove (201). The two wedge blocks (4) are respectively matched in the corresponding slots (202).
2. The PCB circuit board for LED lamps according to claim 1, characterized in that, The top of the positioning block (3) has a limiting groove (303) connected to the reserved groove (302). The end of the wedge block (4) is equipped with a slider (6), which slides in the limiting groove (303).
3. The PCB circuit board for LED lamps according to claim 2, characterized in that, The top two sides of the positioning block (3) are provided with a first chamfer (301), and the outer surfaces of the two wedge blocks (4) are provided with a second chamfer (402).
4. The PCB circuit board for LED lamps according to claim 1, characterized in that, The inner walls of the two mounting slots (401) are connected with connecting strips (7), and the ends of the two connecting strips (7) are connected with flanges (8).
5. A PCB circuit board for LED lamps according to claim 4, characterized in that, The positioning block (3) has a circular hole (305) in the middle and a clearance groove (304) on the top. The circular hole (305) is connected to the reserved groove (302) and the clearance groove (304).
6. A PCB circuit board for LED lamps according to claim 5, characterized in that, The ends of the two connecting strips (7) pass through the round hole (305) and are located in the relief groove (304).