LED driving chip with limiting mechanism
By designing a limiting mechanism and utilizing components such as a movable plate and a limiting block, the problem of bolt loosening during vibration in existing LED driver chips has been solved, achieving higher limiting stability and fixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ANXINTAI TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-24
AI Technical Summary
Existing LED driver chips with limit mechanisms may experience loosening of the countersunk bolts during vibration, resulting in poor limit performance.
A limiting mechanism was designed, including components such as a movable plate, a limiting block, a stop block, a reinforcing block, and an anti-slip block. By rotating the movable plate and cooperating with the limiting block, the fixing bolt cannot be rotated, thus improving the limiting stability.
It effectively prevents the fixing bolts from loosening, improves the limiting effect of the driver chip, and reduces the probability of the driver chip becoming loose.
Smart Images
Figure CN224556010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED driver chip technology, and in particular to an LED driver chip with a limiting mechanism. Background Technology
[0002] An LED driver chip is an integrated circuit whose main function is to control and regulate the current and voltage of an LED to ensure that the LED can work stably and efficiently.
[0003] Patent specification CN219267639U discloses an LED driver chip with a limiting mechanism, including a driver chip body. Pins are provided on both the front and rear sides of the driver chip body. Grooves are formed on the top of the left and right sides of the driver chip body, and mounting holes are formed on the bottom walls of the grooves. Countersunk bolts are installed in the mounting holes. A limiting mechanism is provided within the grooves, comprising a strip-shaped block. A pressing head is fixedly connected to the bottom of the strip-shaped block at the corresponding position of the mounting hole. Through slots are formed on both sides of the strip-shaped block, and springs are installed inside the through slots. Insert plates are fixedly connected to both ends of the springs, and the end of the insert plate away from the spring slides out of the through slot. A movable groove communicating with the through slot is formed on the top of the strip-shaped block. Two movable rods are slidably arranged in the movable groove, and the two movable rods are respectively fixedly connected to the upper surface of the insert plate. This utility model improves the installation stability of the driver chip, thus making it less likely to affect the use of the LED driver chip.
[0004] However, in implementing the relevant technology, the above-mentioned LED driver chip with a limiting mechanism has the following problems: the device only squeezes the countersunk bolt by pressing the head, which cannot completely limit the rotation of the countersunk bolt. When the driver chip is vibrated, the countersunk bolt may still rotate, which will cause the driver chip to loosen, thereby reducing the limiting effect of the device on the driver chip. In view of this, an LED driver chip with a limiting mechanism is provided to overcome the above defects. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an LED driver chip with a limiting mechanism.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an LED driver chip with a limiting mechanism, comprising a chip body, two rotating shafts at the top of the chip body, two movable plates rotatably connected to the top of the chip body via the two rotating shafts, movable slots inside the two movable plates, movable blocks slidably connected inside the two movable slots, several limiting shafts inside the two movable blocks, compression springs on the sides of the several limiting shafts, fixed seats fixed at the top of the two movable blocks, pressure plates fixed at the top of the two fixed seats, limiting blocks fixed on one side of the two movable blocks, two stops fixed at the bottom of the two movable plates, two reinforcing blocks fixed on the sides of the four stops, the tops of the eight reinforcing blocks fixedly connected to the bottom of the two movable plates, two anti-slip blocks fixed on the sides of the four stops, four fixing bolts inside the chip body, and several pins fixed on the sides of the chip body.
[0007] As a further description of the above technical solution: the top of the chip body has two placement slots, and the interior of the two placement slots is respectively attached to the sides of two movable plates, which facilitate the fixing of the blocks.
[0008] As a further description of the above technical solution: two limiting grooves are formed inside the chip body, and the inside of the two limiting grooves respectively fits into the sides of two limiting blocks, which facilitates the limiting of the movable plate.
[0009] As a further description of the above technical solution: each of the two movable blocks has a plurality of limiting holes inside, the interior of the plurality of limiting holes is slidably connected to the side of a plurality of limiting shafts, and the side of the plurality of limiting shafts is fixedly connected to the interior of the two movable plates, the limiting shafts facilitating the improvement of the stability of the movable blocks when they move.
[0010] As a further description of the above technical solution: one side of each of the compression springs is fixedly connected to the other side of the two movable blocks, and the other side of each of the compression springs is fixedly connected to the interior of the two movable plates, so that the compression springs can easily push the movable blocks to reset.
[0011] As a further description of the above technical solution: the top of each of the two movable plates is provided with a connecting groove, and the interior of the two connecting grooves is slidably connected to the sides of the two fixed seats, which facilitates the fixing of the pressure plate.
[0012] As a further description of the above technical solution: the chip body has four positioning holes inside, and the four fixing bolts pass through the four positioning holes respectively, which facilitates the positioning of the chip body.
[0013] As a further description of the above technical solution: each of the four fixing bolts has a cross groove at its top end, and the four stops are located inside the four cross grooves respectively. The stops are convenient for limiting the fixing bolts and preventing the fixing bolts from rotating.
[0014] This utility model has the following beneficial effects:
[0015] This invention relates to an LED driver chip with a limiting mechanism. Through a design that works in conjunction with two pressure plates, a limiting block is disengaged from the chip body. Rotating the pressure plates upwards causes a movable plate to rotate upwards, allowing a fixing bolt to pass through a positioning hole. Rotating the fixing bolt secures it to a designated position on the circuit board, thus limiting the chip body. Rotating the movable plate downwards causes a stop block to rotate downwards, entering the cross groove of the fixing bolt. A reinforcing block improves the stability of the stop block during placement, and an anti-slip block fills the gap between the stop block and the cross groove, preventing the fixing bolt from rotating. Releasing the pressure plates allows a compression spring to push the limiting block in the opposite direction, causing it to enter the chip body. This again limits the movable plate and the stop block, preventing the fixing bolt from rotating and thus reducing the probability of loosening. This significantly improves the device's limiting effect on the driver chip. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the rotating structure of the movable plate of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the movable plate of this utility model;
[0019] Figure 4 This is a bottom view of the movable plate of this utility model.
[0020] Legend:
[0021] 1. Chip body; 2. Rotating shaft; 3. Movable plate; 4. Movable block; 5. Limiting shaft; 6. Compression spring; 7. Fixed seat; 8. Pressure plate; 9. Limiting block; 10. Stop block; 11. Reinforcing block; 12. Anti-slip block; 13. Fixing bolt; 14. Pin. Detailed Implementation
[0022] Reference Figures 1-4This utility model provides an LED driver chip with a limiting mechanism: It includes a chip body 1, with two rotating shafts 2 at its top. Two movable plates 3 are rotatably connected to the top of the chip body 1 via the two rotating shafts 2. The movable plates 3 facilitate the rotation of a stop block 10. Each movable plate 3 has an internal movable groove, and each movable groove has a slidingly connected movable block 4. Each movable block 4 has several limiting shafts 5 inside, and each limiting shaft 5 has a compression spring 6 on its side. Each movable block 4 has a fixed base 7 fixedly mounted at its top, and each fixed base 7 has a pressure spring fixedly mounted at its top. Plate 8 and pressure plate 8 facilitate the movement of fixed base 7. Limiting blocks 9 are fixed on one side of each of the two movable blocks 4. Two stops 10 are fixed on the bottom of each of the two movable plates 3. Two reinforcing blocks 11 are fixed on the sides of each of the four stops 10. The reinforcing blocks 11 facilitate the improvement of the strength of the stops 10. The tops of the eight reinforcing blocks 11 are fixedly connected to the bottom of the two movable plates 3 respectively. Two anti-sliding blocks 12 are fixed on the sides of each of the four stops 10. Four fixing bolts 13 are provided inside the chip body 1. Several pins 14 are fixed on the sides of the chip body 1. The pins 14 facilitate the connection of the chip body 1 to the circuit board.
[0023] As a further implementation of the above technical solution: two placement slots are provided at the top of the chip body 1, and the interior of the two placement slots are respectively attached to the sides of the two movable plates 3, which facilitates the fixing of the block 10.
[0024] As a further implementation of the above technical solution: two limiting grooves are opened inside the chip body 1, and the inside of the two limiting grooves are respectively attached to the sides of the two limiting blocks 9, so that the limiting blocks 9 can limit the movable plate 3.
[0025] As a further implementation of the above technical solution: the interior of each of the two movable blocks 4 is provided with several limiting holes, the interior of the several limiting holes is slidably connected to the side of several limiting shafts 5, and the side of several limiting shafts 5 is fixedly connected to the interior of the two movable plates 3. The limiting shafts 5 facilitate the improvement of the stability of the movable blocks 4 when they move.
[0026] As a further implementation of the above technical solution: one side of several compression springs 6 is fixedly connected to the other side of two movable blocks 4, and the other side of several compression springs 6 is fixedly connected to the interior of two movable plates 3, so that the compression springs 6 can push the movable blocks 4 to reset.
[0027] As a further implementation of the above technical solution: the top of each of the two movable plates 3 is provided with a connecting groove, and the interior of the two connecting grooves is slidably connected to the sides of the two fixed seats 7 respectively, so that the fixed seats 7 can be used to fix the pressure plate 8.
[0028] As a further implementation of the above technical solution: four positioning holes are provided inside the chip body 1, and four fixing bolts 13 pass through the four positioning holes respectively. The fixing bolts 13 facilitate the limiting of the chip body 1.
[0029] As a further implementation of the above technical solution: each of the four fixing bolts 13 has a cross groove at its top, and four stops 10 are located inside the four cross grooves respectively. The stops 10 can limit the fixing bolts 13 and prevent them from rotating.
[0030] Working principle:
[0031] When using this invention, pushing the two pressure plates 8 causes the two fixed seats 7 to move away from each other, thereby causing the two movable blocks 4 to move away from each other, and thus causing the two limiting blocks 9 to move away from each other, so that the limiting blocks 9 are detached from the chip body 1. Rotating the pressure plates 8 upwards causes the movable plate 3 to rotate upwards, opening the positioning hole. The fixing bolt 13 is then passed through the positioning hole and rotated, fixing the fixing bolt 13 at the designated position on the circuit board, thus limiting the chip body 1. Rotating the movable plate 3 downwards causes the movable plate 3 to rotate downwards, thereby causing the stop block 10 to rotate downwards, so that the stop block 10 enters the cross groove of the fixing bolt 13. The chip body 1 is then lifted by the reinforcing block 11. The stability of the high stop block 10 when placed is achieved by filling the gap between the stop block 10 and the cross groove with the anti-slip block 12 to prevent the fixing bolt 13 from rotating. When the pressure plate 8 is loosened, the compression spring 6 pushes the movable block 4 to move in the opposite direction, thereby driving the limit block 9 to move in the opposite direction, so that the limit block 9 enters the chip body 1. This limits the movable plate 3 and the stop block 10. The stop block 10 blocks the fixing bolt 13, preventing the fixing bolt 13 from rotating. This makes the fixing bolt 13 less likely to loosen, thus reducing the probability of the fixing bolt 13 loosening during use and the probability of the drive chip loosening, thereby improving the limiting effect of the device on the drive chip.
[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An LED driver chip with a limiting mechanism, comprising a chip body (1), characterized in that: The chip body (1) has two rotating shafts (2) at its top. Two movable plates (3) are rotatably connected to the top of the chip body (1) via the two rotating shafts (2). Each of the two movable plates (3) has an internal movable groove. Each of the two movable grooves has a movable block (4) slidably connected inside. Each of the two movable blocks (4) has several limiting shafts (5) inside. Each of the limiting shafts (5) has a compression spring (6) on its side. Each of the two movable blocks (4) has a fixed base (7) fixed at its top. Each of the two fixed bases (7) has a fixed... The pressure plate (8) has a limiting block (9) fixed on one side of each of the two movable blocks (4), two stops (10) fixed at the bottom of each of the two movable plates (3), two reinforcing blocks (11) fixed on the sides of each of the four stops (10), the tops of the eight reinforcing blocks (11) are respectively fixedly connected to the bottom of the two movable plates (3), two anti-sliding blocks (12) fixed on the sides of each of the four stops (10), four fixing bolts (13) are provided inside the chip body (1), and several pins (14) are fixed on the sides of the chip body (1).
2. The LED driver chip with a limiting mechanism according to claim 1, characterized in that: The chip body (1) has two placement slots at its top, and the interior of the two placement slots is respectively attached to the sides of the two movable plates (3).
3. The LED driver chip with a limiting mechanism according to claim 1, characterized in that: The chip body (1) has two limiting grooves inside, and the inside of the two limiting grooves is respectively attached to the side of the two limiting blocks (9).
4. The LED driver chip with a limiting mechanism according to claim 1, characterized in that: The interior of each of the two movable blocks (4) is provided with several limiting holes. The interior of the several limiting holes is slidably connected to the side of several limiting shafts (5). The side of several limiting shafts (5) is fixedly connected to the interior of the two movable plates (3).
5. An LED driver chip with a limiting mechanism according to claim 1, characterized in that: One side of each of the compression springs (6) is fixedly connected to the other side of each of the two movable blocks (4), and the other side of each of the compression springs (6) is fixedly connected to the interior of each of the two movable plates (3).
6. The LED driver chip with a limiting mechanism according to claim 1, characterized in that: The top of each of the two movable plates (3) is provided with a connecting groove, and the interior of the two connecting grooves is slidably connected to the sides of the two fixed seats (7).
7. An LED driver chip with a limiting mechanism according to claim 1, characterized in that: The chip body (1) has four positioning holes inside, and the four fixing bolts (13) pass through the four positioning holes respectively.
8. The LED driver chip with a limiting mechanism according to claim 1, characterized in that: The top of each of the four fixing bolts (13) is provided with a cross groove, and the four stops (10) are respectively located inside the four cross grooves.