Balancing circuit board of light source precision positioning elastic structure

Abstract

The utility model kind of light source precision positioning elastic structure of balance line board belongs to the technical field of car lamps and lanterns. The utility model discloses a kind of elastic structure, which comprises: shell, the shell is equipped with several limit ribs distributed along circumference, the shell lower end is equipped with opening;The support is clamped in the shell by several limit ribs;The line board is fixedly installed on the support upper end;The lens group passes through the opening of shell lower end and is clamped with the support connection;The cover plate is welded on the shell upper end, forms sealing.The utility model shell and cover plate are fixed by laser welding mode, by two elastic blocks, the problem that position deviates due to welding pressure is solved, the displacement amount of the assembly between parts is effectively balanced, the manufacturing cost is reduced, this structure is also applicable to other lamps and lanterns, since car lamps and lanterns structure is relatively smaller, many fixed structures are not applicable, but this structure is simple, easy to apply, position is not limited.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically an elastic structure for a light source precision positioning and balancing circuit board. Background Technology

[0002] For a long time, the snap-fit ​​fixing structure of circuit boards has suffered from problems such as inaccuracy, easy displacement, and abnormal noise. Existing snap-fit ​​fixing structures are prone to loosening and damage during disassembly and assembly, and they also have high requirements for structural layout space, making them difficult to install in small spaces. All of these can lead to LED position displacement. For projection lights, if the projection distance or angle is inaccurate, it will cause image displacement or distortion. Laser welding fixing structures are also a very common welding method, but uneven weld beads have been a persistent problem for major lighting manufacturers. Therefore, there is an urgent need to develop a structure to solve the after-sales problems caused by LED displacement and structural abnormal noise in circuit boards. Utility Model Content

[0003] To address the shortcomings of existing production methods, this invention provides an elastic structure for a light source precision positioning and balancing circuit board, solving the problems mentioned in the background section.

[0004] The present invention relates to an elastic structure for a light source precision positioning and balancing circuit board, characterized in that the elastic structure comprises: The housing 1 has a plurality of circumferentially distributed limiting ribs 101 inside, and an opening 102 at the lower end of the housing 1. The bracket 2 is secured to the housing 1 by a plurality of limiting ribs 101; Circuit board 3, which is fixedly installed on the upper end of the bracket 2; Lens group 4, which passes through the opening 102 at the lower end of the housing 1 and is snapped into connection with the bracket 2; It also includes: a cover plate 5, which is welded to the upper end of the housing 1 to form a seal.

[0005] Furthermore, an LED6 is mounted on the circuit board 3 in the direction of the optical axis of the lens group 4.

[0006] Furthermore, the upper end of the bracket 2 is provided with two positioning posts 201.

[0007] Furthermore, the circuit board 3 is provided with two mounting holes 301, and the two mounting holes 301 are connected to the two positioning posts 201 on the bracket 2.

[0008] Furthermore, two elastic blocks 501 are symmetrically provided on the inner side of the cover plate 5.

[0009] The beneficial effects of this utility model are as follows: 1. This utility model effectively solves after-sales problems caused by LED misalignment and structural noise in circuit boards by designing a precise positioning and balancing light source structure. It reduces production scrap rates and improves production efficiency.

[0010] 2. The housing and cover plate of this utility model are fixed by laser welding. The two elastic blocks solve the problem of positional displacement caused by welding pressure, effectively balance the displacement between parts, and reduce manufacturing costs. This structure is also applicable to other lamps. Since the structure of automotive lamps is relatively small, many fixing structures are not suitable, but this structure is simple, easy to apply, and its position is not limited. Attached Figure Description

[0011] Figure 1 This is an exploded view of the overall structure of this utility model, and also serves as an abstract drawing.

[0012] Figure 2 This is a schematic diagram of the structure of the cover plate 5 in this utility model.

[0013] Figure 3 This is a partial schematic diagram of the present invention.

[0014] Figure 4 This is a bottom view cross-sectional diagram of the present invention.

[0015] Figure 5 for Figure 4 An enlarged schematic diagram of 'a' in the diagram.

[0016] Figure 6 This is a front sectional view of the present invention.

[0017] Figure 7 for Figure 7 A bottom view of the structure of cover plate 5.

[0018] Figure captions: 1. Housing, 101. Limiting rib, 102. Opening, 2. Bracket, 201. Positioning post, 3. Circuit board, 301. Mounting hole, 4. Lens assembly, 5. Cover plate, 501. Elastic block, 6. LED. Detailed Implementation

[0019] The following is a specific embodiment of this utility model with reference to the accompanying drawings, and the structure of this utility model is described in detail. It should be noted that the scope of application of this utility model is not limited to the following embodiment; all similar structures based on this utility model are within the scope of application of this utility model.

[0020] This utility model discloses an elastic structure for a light source precision positioning and balancing circuit board, such as... Figure 1 As shown, the elastic structure includes: The housing 1 has a plurality of circumferentially distributed limiting ribs 101 inside, and an opening 102 at the lower end of the housing 1. like Figure 5 As shown, bracket 2 is connected to the housing 1 by a number of limiting ribs 101; Circuit board 3, which is fixedly installed on the upper end of the bracket 2; Lens group 4, which passes through the opening 102 at the lower end of the housing 1 and is snapped into connection with the bracket 2; It also includes: a cover plate 5, which is welded to the upper end of the housing 1 to form a seal, and assembles the bracket 2, circuit board 3 and lens group 4 inside.

[0021] As a further description of this embodiment, such as Figure 1 As shown, LED6 is mounted on the circuit board 3 in the direction of the optical axis of the lens group 4.

[0022] As a further description of this embodiment, the upper end of the bracket 2 is provided with two positioning posts 201.

[0023] As a further description of this embodiment, the circuit board 3 is provided with two mounting holes 301, and the two mounting holes 301 are connected to the two positioning posts 201 on the bracket 2.

[0024] As a further description of this embodiment, such as Figure 2 As shown, two elastic blocks 501 are symmetrically arranged on the inner side of the cover plate 5. The elastic blocks 501 are integrally injection molded with the cover plate 3, which can ensure that the central axis of the LED6 is coaxial with the optical axis of the lens group 4, avoid the problem of uneven connection of the circuit board 3, which causes the light of the LED6 to be skewed and produce abnormal noise, solves the problem of position displacement caused by the pressure generated by welding, and effectively balances the displacement of the assembly between parts.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this invention.

Claims

1. An elastic structure for a light source precise positioning and balancing circuit board, characterized in that, The elastic structure includes: The shell (1) is provided with a plurality of circumferentially distributed limiting ribs (101) inside the shell (1), and the lower end of the shell (1) is provided with an opening (102). The bracket (2) is snapped into the housing (1) by a number of limiting ribs (101); Circuit board (3), the circuit board (3) is fixedly installed on the upper end of the bracket (2); Lens assembly (4), which passes through the opening (102) at the lower end of the housing (1) and is snapped into connection with the bracket (2); It also includes: a cover plate (5), which is welded to the upper end of the housing (1) to form a seal.

2. The elastic structure of a light source precision positioning and balancing circuit board according to claim 1, characterized in that, LEDs (6) are mounted on the circuit board (3) in the direction of the optical axis of the lens group (4).

3. The elastic structure of a light source precision positioning and balancing circuit board according to claim 1, characterized in that, The bracket (2) has two positioning posts (201) at its upper end.

4. The elastic structure of a light source precision positioning and balancing circuit board according to claim 1, characterized in that, The circuit board (3) is provided with two mounting holes (301), and the two mounting holes (301) are connected to the two positioning posts (201) on the bracket (2).

5. The elastic structure of a light source precision positioning and balancing circuit board according to claim 1, characterized in that, Two elastic blocks (501) are symmetrically provided on the inner side of the cover plate (5).

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