Headlamp dimming assembly

Abstract

The utility model discloses a headlamp dimming assembly which comprises an installation base, a dimming mechanism, a lining and a metal ball head connecting piece. The bushing covers the ball head end of the ball head connecting piece and is fixed at the bottom of the mounting seat; and the other end of the ball head connecting piece is connected with the dimming mechanism. According to the utility model, the metal ball head connecting piece is connected with the mounting seat dimming mechanism, so that the problem that the plastic ball head is broken due to a harsh vibration test is solved, and the harsh vibration test requirements of some main engine plants can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a headlamp dimming component. Background Art

[0002] With the rapid development of the automotive lighting industry, customers have higher and higher requirements for the optics of headlights, resulting in the weight of the lens module sub-assembly or reflector sub-assembly becoming heavier, and customers have higher and higher requirements for experiments, especially for truck headlight vibration tests, where the vibration time of each axis of X / Y / Z is >8h; often after the test, the plastic ball head will break. As a result, the existing installation and matching form of plastic ball heads and bushings cannot meet the needs of the rapid development of lamps; in addition, the dimming components composed of plastic ball heads will be ground between the ball heads and bushings under harsh vibration conditions, causing foreign matter inside the lamps and affecting the appearance of the lamps. Due to the needs of customer projects, the weight of the lens module sub-assembly or reflector sub-assembly is getting heavier, and there will be a phenomenon of jamming during the dimming process. In addition, the plastic ball head and plastic bushing have problems with injection molding tolerance and product deformation, and the dimming accuracy is not high. When the bushing and the dimming parts are assembled, they are fixed to the dimming parts by three clips. The contact area and force area are small. If the dimming is performed for a long time, the contact surface of the clips will also be worn to a certain extent, affecting the stability and accuracy of the dimming.

[0003] Therefore, it is necessary to design a headlamp dimming component to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problems of the shortcomings of the prior art and proposes a headlamp dimming component.

[0005] The technical solution of the utility model is: a headlamp dimming component, comprising a mounting seat, a dimming mechanism, a bushing and a metal ball head connector; the bushing is coated on the ball head end of the ball head connector and fixed to the bottom of the mounting seat; the other end of the ball head connector is connected to the dimming mechanism.

[0006] The top of the mounting seat is provided with a mounting hole matching the shape of the bushing; the bushing is fixed in the mounting hole through a pressure cover.

[0007] The bushing comprises an arc segment at the top and a straight segment extending outward from the arc segment in an open shape; a limiting ring platform abutting against the straight segment of the bushing is provided in the middle of the pressure cover; and the pressure cover is fixed to the bottom of the mounting seat.

[0008] The contact surface between the limiting ring platform on the gland and the straight section of the bushing is arranged to be an inclined plane perpendicular to the straight section of the bushing.

[0009] One end of the ball head connector away from the ball head end is provided with a self-tapping thread which is threadedly connected to the dimming bracket of the dimming mechanism.

[0010] A limiting block is provided on the ball head connector above the automatic thread.

[0011] The surface of the ball head end of the ball head connector is smooth.

[0012] The two ends of the gland are fixedly connected to the mounting seat by self-tapping screws.

[0013] By adopting the above technical solution, the utility model has the following beneficial effects: (1) The utility model is provided with a metal ball head connector connected to the mounting seat dimming mechanism, which solves the problem of plastic ball head breakage due to severe vibration tests and can meet the severe vibration test requirements of some OEMs.

[0014] (2) The metal ball head connector of the utility model has a greater load-bearing capacity and can bear a module weighing more than 1000g, thereby solving the problem of dimming jamming caused by the increasing weight of the lens module subassembly or the reflector subassembly.

[0015] (3) It solves the problem of severe friction and grinding between the plastic ball head and the bushing during dimming or vibration, reduces the risk of dust and foreign matter inside the lamp, and improves the pass rate of the entire lamp appearance.

[0016] (4) The headlamp dimming assembly of the utility model can be assembled on other dimming parts at will to meet the matching installation requirements of this combination. There are no restrictions on the structural form of the dimming parts, and the applicability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the gland of the utility model.

[0020] The reference numerals in the accompanying drawings are:

[0021] Mounting seat 1, dimming mechanism 2, bushing 3, ball head connector 4, pressure cover 5, limit ring 5-1, self-tapping thread 6, limit block 7. DETAILED DESCRIPTION

[0022] (Example 1)

[0023] See Figure 1 and Figure 2A headlamp dimming assembly of the present embodiment includes a mounting seat 1, a dimming mechanism 2, a bushing 3 and a metal ball head connector 4; the dimming mechanism 2 of the present embodiment is an existing dimming mechanism 2; the bushing 3 is covered on the ball head end of the ball head connector 4 and fixed to the bottom of the mounting seat 1; the other end of the ball head connector 4 is connected to the dimming mechanism 2.

[0024] Furthermore, in order to more conveniently install the connecting ball head on the mounting seat 1 , a mounting hole matching the shape of the bushing 3 is provided on the top of the mounting seat 1 ; the bushing 3 is fixed in the mounting hole by a pressure cover 5 .

[0025] Furthermore, the bushing 3 includes an arc segment at the top and a straight segment extending outward from the arc segment in an open shape; a limiting ring 5-1 is provided in the middle of the pressure cover 5 to abut against the straight segment of the bushing 3; and the pressure cover 5 is fixed to the bottom of the mounting seat 1. In this embodiment, the bushing 3 is fixed to the mounting seat 1 by the limiting ring 5-1, which increases the contact area between the bushing 3 and the pressure cover 5, that is, increases the force area of ​​the bushing 3 during the dimming process, thereby increasing the stability and accuracy of the dimming to a certain extent.

[0026] Furthermore, the contact surface between the limiting ring 5 - 1 on the gland 5 and the straight section of the bushing 3 is set to be an inclined plane perpendicular to the straight section of the bushing 3 , so that the contact between the gland 5 and the bushing 3 is more stable, ensuring the installation stability of the bushing 3 .

[0027] Furthermore, the end of the ball head connector 4 away from the ball head end is provided with a self-tapping thread 6 which is threadedly connected to the dimming bracket of the dimming mechanism 2, which is more convenient to produce and saves production time. It can be used in conjunction with any dimming mechanism 2 and has strong applicability.

[0028] Furthermore, a limit block 7 is provided on the ball head connector 4 above the automatic thread, which further ensures the stability of the installation of the ball head connector 4.

[0029] Furthermore, the surface of the ball end of the ball head connector 4 is smooth, which further avoids severe friction and grinding between the ball head connector 4 and the bushing 3.

[0030] Furthermore, both ends of the gland 5 are fixedly connected to the mounting base 1 by self-tapping screws, so that the gland 5 can be installed more conveniently and stably.

[0031] The headlamp dimming assembly of this embodiment is provided with a metal ball head connector 4 connected to the mounting seat 1 dimming mechanism 2, which solves the problem of plastic ball head breaking due to severe vibration test and can meet the severe vibration test requirements of some OEMs; meanwhile, it also has the following advantages:

[0032] 1. Improve the dimming accuracy of the whole lamp, ensure the stability of the light pattern, and improve the product qualification rate;

[0033] 2. Reduce the risk of dust and foreign matter inside the lamp and improve the pass rate of the entire lamp appearance;

[0034] 3. The selection of heavy modules > 1000g that can meet the needs of the OEM project;

[0035] 4. One end of the ball head connector 4 of this embodiment is a self-tapping thread 6, which is convenient for production line installation and saves production time;

[0036] 5. The ball head connector 4 of this embodiment has no restrictions on the structural form of the dimming component that matches it, and is easy to assemble.

[0037] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A headlamp dimming assembly, characterized in that: The invention comprises a mounting seat (1), a dimming mechanism (2), a bushing (3) and a metal ball head connector (4); the bushing (3) is coated on the ball head end of the ball head connector (4) and is fixed to the bottom of the mounting seat (1); the other end of the ball head connector (4) is connected to the dimming mechanism (2).

2. A headlamp dimming assembly according to claim 1, characterized in that: The top of the mounting seat (1) is provided with a mounting hole matching the outer shape of the bushing (3); the bushing (3) is fixed in the mounting hole via a pressure cover (5).

3. A headlamp dimming assembly according to claim 2, characterized in that: The bushing (3) comprises an arc segment at the top and a straight segment extending outward from the arc segment in an open shape; a limiting ring platform (5-1) abutting against the straight segment of the bushing (3) is provided in the middle of the pressure cover (5); and the pressure cover (5) is fixed to the bottom of the mounting seat (1).

4. The headlamp dimming assembly according to claim 3, characterized in that: The contact surface between the limiting ring platform (5-1) on the gland (5) and the straight section of the bushing (3) is arranged to be an inclined plane perpendicular to the straight section of the bushing (3).

5. The headlamp dimming assembly according to claim 1, characterized in that: The end of the ball head connector (4) away from the ball head end is provided with a self-tapping thread (6) threadedly connected to the dimming bracket of the dimming mechanism (2).

6. The headlamp dimming assembly according to claim 5, characterized in that: A limit block (7) is provided on the ball head connector (4) above the automatic thread.

7. The headlamp dimming assembly according to claim 1, characterized in that: The surface of the ball head end of the ball head connector (4) is smooth.

8. The headlamp dimming assembly according to claim 3, characterized in that: Both ends of the gland (5) are fixedly connected to the mounting seat (1) via self-tapping screws.

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