Automobile headlight thermoelectric separation aluminum circuit board

Abstract

The invention discloses an aluminum-based circuit board for thermoelectric separation of automobile headlights, which belongs to the technical field of aluminum-based circuit boards, and includes a circuit board body, wherein mounting holes are provided at the four corners of the circuit board body, a connecting cylinder is rotatably provided at the upper end of the connecting seat, a hexagonal bolt for fixing the circuit board body is slidably provided inside the connecting cylinder, and an auxiliary component for preventing the hexagonal bolt from being over-tightened and causing thread slipping is provided inside the connecting cylinder. The beneficial effects of the invention are as follows: by providing a connecting cylinder, a hexagonal bolt, a rotating plate, a hexagonal hole, a pull rope, a moving block, and a clamping piece, etc., during the process of tightening the hexagonal bolt with the aid of an inner hexagonal wrench, the clamping piece releases the rotation limit of the rotating plate under the drive of the pull rope, so that continued rotation will only drive the rotating plate to idle, and will not drive the hexagonal bolt to rotate, effectively avoiding over-tightening of the hexagonal bolt, which causes thread slipping in the connection between the hexagonal bolt and the threaded hole.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum-based circuit boards, and in particular to a thermoelectric separation aluminum-based circuit board for automobile headlights. Background Art

[0002] The circuit board is the core component of the car headlight, which is responsible for controlling the brightness, color and flashing mode of the light, ensuring that the car always has a clear view when driving at night. Thermoelectric separation aluminum substrate is a thermoelectric material that uses the thermoelectric effect to convert and separate energy. Compared with the thermoelectric separation copper substrate, the main difference lies in the choice of substrate material.

[0003] Most thermoelectric separation aluminum-based circuit boards are composed of an aluminum substrate, thermoelectric materials, an insulating heat dissipation layer and a conductive layer. The heat is dissipated through the heat dissipation structure on the insulating heat dissipation layer, and the remaining heat can be conducted to the metal base layer below for dissipation. However, the circuit board is usually fixed with bolts, and the circuit board itself is small in size, so the bolts used are small. During the tightening process, improper operation can easily cause over-tightening, which can easily cause the bolts to slip, making subsequent disassembly difficult. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems and to propose an aluminum-based circuit board for thermal and electrical separation of automobile headlights.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Thermoelectric separation aluminum-based circuit board for automobile headlights, comprising a circuit board body, mounting holes are provided at the four corners of the circuit board body, a connection seat matched with the mounting holes is fixedly provided on the surface of the circuit board body, a connection cylinder is rotatably provided on the upper end of the connection seat, a through hole is provided on the upper end of the connection cylinder, a groove connected with the connection seat is provided on the lower end surface of the connection cylinder, a hexagonal bolt for fixing the circuit board body is slidably provided inside the connection cylinder, and an auxiliary component is provided inside the connection cylinder to prevent the hexagonal bolt from being over-tightened and causing thread slipping;

[0007] The auxiliary component includes a rotating plate rotatably arranged inside the through hole and two clamping parts symmetrically rotatably arranged on the top surface of the connecting tube, a hexagonal hole matched with the hexagonal bolt is opened in the middle of the rotating plate, a clamping hole matched with the clamping part is opened on the lower end surface of the rotating plate, and two installation grooves are symmetrically opened on the inner wall of the connecting tube, and moving blocks are slidably arranged inside the two installation grooves, and pull ropes are fixed on the upper ends of the two moving blocks, and the other ends of the two pull ropes are respectively wrapped and fixed with the surface of the clamping parts.

[0008] As a further description of the above technical solution:

[0009] The clamping part includes a first winding sleeve rotatably arranged on the top surface of the connecting tube and a second winding sleeve for winding and fixing the pull rope, the lower end of the first winding sleeve is connected to the upper end of the second winding sleeve by a first torsion spring, a pin shaft matching the clamping hole is slidably provided inside the first winding sleeve, a protrusion is fixedly provided on the outer surface of the pin shaft, a spiral groove matching the protrusion is opened on the inner wall of the first winding sleeve, the lower end of the pin shaft is connected to the inner bottom surface of the second winding sleeve by a second torsion spring, an elastic rope is fixedly provided on the inner wall of the connecting tube, a connecting rope is fixedly provided on one end of the elastic rope, and one end of the connecting rope is wound and fixed to the outer surface of the first winding sleeve.

[0010] As a further description of the above technical solution:

[0011] The upper end of the first torsion spring is clamped and fixed to the lower end of the first winding sleeve, the lower end of the first winding sleeve is clamped and fixed to the upper end of the second winding sleeve, the lower end of the second torsion spring is clamped and fixed to the inner bottom surface of the second winding sleeve, and the lower end of the pin shaft is provided with a sliding hole that vertically slides with the upper end of the second torsion spring.

[0012] As a further description of the above technical solution:

[0013] A connecting sleeve is fixedly provided on the outer side of the second winding sleeve, the lower end of the first winding sleeve is rotatably connected to the connecting sleeve via a bearing, and the upper end of the first winding sleeve is rotatably connected to the inner top surface of the connecting cylinder via a bearing.

[0014] As a further description of the above technical solution:

[0015] The pin shaft is cylindrical.

[0016] As a further description of the above technical solution:

[0017] A pressing ring is arranged inside the connecting cylinder, and the pressing ring is made of elastic material. The upper end surface of the pressing ring is fixedly connected to the lower end of the moving block respectively.

[0018] As a further description of the above technical solution:

[0019] Guide wheels matched with the draw ropes are rotatably arranged inside the two installation grooves, and the draw ropes and the connecting ropes are both made of non-elastic materials.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] In the present invention, by providing a connecting tube, a hexagonal bolt, a rotating plate, a hexagonal hole, a pull rope, a moving block and a clamping piece, when the hexagonal bolt is tightened by means of an inner hexagonal wrench, the clamping piece releases the rotation limit of the rotating plate under the drive of the pull rope, so that continued rotation only drives the rotating plate to rotate idly, and does not drive the hexagonal bolt to rotate, effectively avoiding over-tightening of the hexagonal bolt, which causes the connection between the hexagonal bolt and the threaded hole to produce thread slippage;

[0022] In the present invention, by arranging an elastic rope, a connecting rope, a first winding sleeve, a second winding sleeve, a first torsion spring, a second torsion spring, a pin shaft, a protrusion and a spiral groove, after the hexagonal bolt is tightened, the first torsion spring is in a torsion storage state, and after the hexagonal wrench is taken out, the pin shaft is given a force to rebound into the clamping hole, which is convenient for limiting the rotating plate again and preparing for the subsequent disassembly of the hexagonal bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The appearance of an aluminum-based circuit board provided in an embodiment of the present invention is shown;

[0024] Figure 2 An exploded schematic diagram of a circuit board body and a connecting tube structure provided in an embodiment of the present invention is shown;

[0025] Figure 3 A cross-sectional view of the connecting tube structure provided according to an embodiment of the present invention is shown;

[0026] Figure 4 It shows a schematic diagram of the structure of an auxiliary component provided according to an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of a clamping member provided according to an embodiment of the present invention is shown;

[0028] Figure 6 A cross-sectional view of a clamping member structure provided according to an embodiment of the present invention is shown;

[0029] Figure 7 An exploded schematic diagram of a clamping member structure provided according to an embodiment of the present invention is shown;

[0030] Figure 8 A cross-sectional view of a first winding sleeve structure provided according to an embodiment of the present invention is shown.

[0031] Legend: 1. Circuit board body; 2. Connecting tube; 3. Mounting hole; 4. Connecting seat; 5. Hexagonal bolt; 6. Rotating plate; 7. Mounting slot; 8. Connecting rope; 9. Elastic rope; 10. Pin; 11. Guide wheel; 12. Pull rope; 13. Moving block; 14. Pressing ring; 15. First winding sleeve; 16. Connecting sleeve; 17. Second winding sleeve; 18. Bearing; 19. First torsion spring; 20. Second torsion spring; 21. Bump; 22. Spiral groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 8 As shown, the aluminum-based circuit board for thermoelectric separation of automobile headlights includes a circuit board body 1, mounting holes 3 are provided at the four corners of the circuit board body 1, a connecting seat 4 matched with the mounting holes 3 is fixedly provided on the surface of the circuit board body 1, a connecting cylinder 2 is rotatably provided on the upper end of the connecting seat 4, a through hole is provided on the upper end of the connecting cylinder 2, a groove connected and matched with the connecting seat 4 is provided on the lower end surface of the connecting cylinder 2, a hexagonal bolt 5 for fixing the circuit board body 1 is slidably provided inside the connecting cylinder 2, and an auxiliary component is provided inside the connecting cylinder 2 to prevent the hexagonal bolt 5 from being over-tightened and causing thread slipping;

[0034] The auxiliary component includes a rotating plate 6 rotatably arranged inside the through hole and two clamping parts symmetrically rotatably arranged on the top surface of the connecting tube 2. A hexagonal hole matching the hexagonal bolt 5 is opened in the middle of the rotating plate 6, and a clamping hole matching the clamping part is opened on the lower end surface of the rotating plate 6. Two mounting grooves 7 are symmetrically opened on the inner wall of the connecting tube 2. Moving blocks 13 are slidably arranged inside the two mounting grooves 7. Pull ropes 12 are fixed on the upper ends of the two moving blocks 13, and the other ends of the two pull ropes 12 are respectively wound and fixed with the surfaces of the clamping parts. When in use, the circuit board body 1 needs to be fixedly installed in the lamp housing. First, the mounting hole 3 of the circuit board body 1 is aligned with the threaded hole in the lamp housing. Then, the staff uses an inner hexagonal wrench to insert one end of the inner hexagonal wrench into the connecting tube 2 from the hexagonal hole in the middle of the rotating plate 6 and match it with the hexagonal bolt 5. Then, by rotating and pressing down the inner hexagonal wrench, the connecting tube 2 and the hexagonal bolt 5 rotate synchronously, and the hexagonal bolt 5 can be initially screwed into the thread. After the rotation limit of rotating plate 6 is released, the continuous rotation of hexagonal wrench will drive the rotating plate 6 to rotate idly, and will not drive the connecting tube 2 to rotate, so it will not drive the hexagonal bolt 5 to continue to tighten.

[0035] Further, the clamping member includes a first winding sleeve 15 rotatably arranged on the inner top surface of the connecting tube 2 and a second winding sleeve 17 for winding and fixing the pull rope 12. The lower end of the first winding sleeve 15 is connected to the upper end of the second winding sleeve 17 through a first torsion spring 19. A pin shaft 10 matching with the clamping hole is slidably arranged inside the first winding sleeve 15. The pin shaft 10 is cylindrical. A protrusion 21 is fixedly arranged on the outer surface of the pin shaft 10. The inner wall of the first winding sleeve 15 is provided with a protrusion matching with the protrusion 21. The spiral groove 22, the lower end of the pin 10 is connected to the inner bottom surface of the second winding sleeve 17 through the second torsion spring 20, the inner wall of the connecting tube 2 is fixed with an elastic rope 9, one end of the elastic rope 9 is fixed with a connecting rope 8, and one end of the connecting rope 8 is wound and fixed with the outer surface of the first winding sleeve 15. In the above description, when one end of the hexagonal wrench is inserted from the hexagonal hole in the middle of the rotating plate 6, in the initial state, under the action of the elastic rope 9, the connecting rope 8 is stretched into a V shape (refer to the attached manual Figure 3 And the instruction manual Figure 4When the second winding sleeve 17 is rotated, the first winding sleeve 15 is driven to rotate and reel in the connecting rope 8, and when the connecting rope 8 is reeled in, the connecting rope 8 is gradually straightened. When one end of the hexagonal wrench is inserted into the connecting tube 2, the connecting rope 8 cannot be straightened under the blocking action of the hexagonal wrench, and the rotation of the first winding sleeve 15 is restricted. The continued rotation of the second winding sleeve 17 causes the first torsion spring 19 to twist and accumulate force. At the same time, when the second winding sleeve 17 rotates, the second torsion spring 20 is connected to drive the pin 10 to rotate. When the first winding sleeve 15 cannot rotate, the pin 10 Continue to rotate, and under the sliding cooperation of the protrusion 21 and the spiral groove 22, the pin shaft 10 moves downward, thereby disengaging the pin shaft 10 from the clamping hole, releasing the rotation limit of the rotating plate 6 (that is, the rotation of the clamping part described above will gradually release the rotation limit of the rotating plate 6). After the hexagonal bolt 5 is tightened and fixed, the staff takes out the hexagonal wrench, and then twists the first torsion spring 19 to reset it, which will cause the first winding sleeve 15 to rotate. During the rotation of the first winding sleeve 15, under the sliding cooperation of the protrusion 21 and the spiral groove 22, the pin shaft 10 will move upward, so that the pin shaft 10 is clamped in the clamping hole again (if the pin shaft 10 is misaligned with the clamping hole at this time, the staff can use the hexagonal wrench to rotate the rotating plate 6 again. At this time, one end of the hexagonal wrench is only clamped in the hexagonal hole, so that the pin shaft 10 is aligned with the clamping hole), which is ready for the subsequent reverse rotation of the rotating plate 6 to remove the hexagonal bolt 5.

[0036] Furthermore, the upper end of the first torsion spring 19 is clamped and fixed to the lower end of the first winding sleeve 15, the lower end of the first winding sleeve 15 is clamped and fixed to the upper end of the second winding sleeve 17, the lower end of the second torsion spring 20 is clamped and fixed to the inner bottom surface of the second winding sleeve 17, and a sliding hole is provided at the lower end of the pin shaft 10 for vertical sliding cooperation with the upper end of the second torsion spring 20. During the sliding process of the pin shaft 10, the upper end of the second torsion spring 20 slides with the sliding hole at the lower end of the pin shaft 10, which will not affect the rotation of the pin shaft 10.

[0037] Furthermore, a connecting sleeve 16 is fixedly provided on the outer side of the second winding sleeve 17, and the lower end of the first winding sleeve 15 is rotatably connected to the connecting sleeve 16 through a bearing 18, and the upper end of the first winding sleeve 15 is rotatably connected to the inner top surface of the connecting tube 2 through the bearing 18. Under the connecting action of the connecting sleeve 16, the stability of the connection between the second winding sleeve 17 and the first winding sleeve 15 is effectively guaranteed, the first torsion spring 19 is prevented from being stretched and deformed, and the service life of the first torsion spring 19 is improved.

[0038] Furthermore, a pressing ring 14 is provided inside the connecting tube 2. The pressing ring 14 is made of elastic material. The upper end surfaces of the pressing ring 14 are fixedly connected to the lower ends of the moving blocks 13. During the tightening process of the hexagonal bolt 5, the hexagonal bolt 5 squeezes the moving block 13, and the moving block 13 drives the pressing ring 14 to move, which will cause the pressing ring 14 to be gradually compressed, thereby improving the stability of the hexagonal bolt 5 fixing the circuit board body 1.

[0039] Furthermore, guide wheels 11 cooperating with the pull rope 12 are rotatably provided inside the two installation grooves 7. The pull rope 12 and the connecting rope 8 are both made of non-elastic materials. Under the guiding action of the guide wheels 11, the pull rope 12 can move stably, effectively reducing the friction resistance of the pull rope 12 during the movement, and improving the service life of the pull rope 12.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thermoelectric separation aluminum-based circuit board for automobile headlights, comprising a circuit board body (1), wherein the circuit board body (1) is provided with mounting holes (3) at four corners, and characterized in that: A connection seat (4) matching with the mounting hole (3) is fixedly provided on the surface of the circuit board body (1); a connection cylinder (2) is rotatably provided on the upper end of the connection seat (4); a through hole is provided on the upper end of the connection cylinder (2); a groove for connecting and matching with the connection seat (4) is provided on the lower end surface of the connection cylinder (2); a hexagonal bolt (5) for fixing the circuit board body (1) is slidably provided inside the connection cylinder (2); an auxiliary component for preventing the hexagonal bolt (5) from being over-tightened and causing thread slipping is provided inside the connection cylinder (2); The auxiliary component comprises a rotating plate (6) rotatably arranged inside the through hole and two clamping parts symmetrically rotatably arranged on the inner top surface of the connecting tube (2); a hexagonal hole matching with the hexagonal bolt (5) is provided in the middle of the rotating plate (6); a clamping hole matching with the clamping part is provided on the lower end surface of the rotating plate (6); two mounting grooves (7) are symmetrically provided on the inner wall of the connecting tube (2); moving blocks (13) are slidably provided inside the two mounting grooves (7); pull ropes (12) are fixedly provided on the upper ends of the two moving blocks (13); the other ends of the two pull ropes (12) are respectively wound and fixed to the surfaces of the clamping parts; The clamping member comprises a first winding sleeve (15) rotatably arranged on the inner top surface of the connecting tube (2) and a second winding sleeve (17) for winding and fixing the pull rope (12); the lower end of the first winding sleeve (15) is connected to the upper end of the second winding sleeve (17) via a first torsion spring (19); a pin shaft (10) matching with the clamping hole is slidably arranged inside the first winding sleeve (15); a protrusion (21) is fixedly arranged on the outer surface of the pin shaft (10); a spiral groove (22) matching with the protrusion (21) is formed on the inner wall of the first winding sleeve (15); the lower end of the pin shaft (10) is connected to the inner bottom surface of the second winding sleeve (17) via the second torsion spring (20); an elastic rope (9) is fixedly arranged on the inner wall of the connecting tube (2); a connecting rope (8) is fixedly arranged at one end of the elastic rope (9); and one end of the connecting rope (8) is wound and fixed to the outer surface of the first winding sleeve (15).

2. The aluminum-based circuit board for thermal and electrical separation of automobile headlights according to claim 1, characterized in that: The upper end of the first torsion spring (19) is clamped and fixed to the lower end of the first winding sleeve (15), the lower end of the first winding sleeve (15) is clamped and fixed to the upper end of the second winding sleeve (17), the lower end of the second torsion spring (20) is clamped and fixed to the inner bottom surface of the second winding sleeve (17), and the lower end of the pin shaft (10) is provided with a sliding hole that vertically slides with the upper end of the second torsion spring (20).

3. The aluminum-based circuit board for thermal and electrical separation of automobile headlights according to claim 1, characterized in that: A connecting sleeve (16) is fixedly provided on the outer side of the second winding sleeve (17); the lower end of the first winding sleeve (15) is rotatably connected to the connecting sleeve (16) via a bearing (18); and the upper end of the first winding sleeve (15) is rotatably connected to the inner top surface of the connecting cylinder (2) via a bearing (18).

4. The aluminum-based circuit board for thermal and electrical separation of automobile headlights according to claim 2, characterized in that: The pin shaft (10) is cylindrical.

5. The automotive headlight thermoelectric separation aluminum-based circuit board according to claim 1, characterized in that: A pressing ring (14) is provided inside the connecting tube (2), the pressing ring (14) is made of elastic material, and the upper end surface of the pressing ring (14) is fixedly connected to the lower end of the moving block (13).

6. The automotive headlight thermoelectric separation aluminum-based circuit board according to claim 1, characterized in that: A guide wheel (11) that cooperates with a pull rope (12) is rotatably provided inside the two installation grooves (7), and the pull rope (12) and the connecting rope (8) are both made of non-elastic material.

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