An assembling structure of license plate lamp pins
By adding a protective sleeve to the license plate light pin and connecting it to the circuit board via a limiting post, the problem of unstable pin position is solved, stability is improved and scrap rate is reduced, making it suitable for automated assembly designs of various lighting fixtures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN HONGDE AUTOMOTIVE LIGHTING
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-10
AI Technical Summary
The existing license plate light pins are unstable after being soldered to the circuit board, making them susceptible to deformation under external forces, resulting in a high scrap rate in production.
Design an assembly structure for license plate light pins. By adding a protective sleeve to the pin and connecting it to the circuit board through a limiting post, and combining it with a protrusion to prevent detachment, the oblique guide structure of the protective sleeve ensures accurate insertion into the connector.
It improves the stability of the pins, reduces the scrap rate, ensures that the position of the lamps is not restricted, and is suitable for various automated assembly designs of lamps.
Smart Images

Figure CN224479606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to an assembly structure for a license plate light pin. Background Technology
[0002] License plate lights are essential lighting devices for vehicles, primarily used to illuminate the license plate at night or in low-light conditions. However, the pin positions of existing license plate lights are not stable; the two independent pins, when soldered to the circuit board, lack sufficient strength, making them prone to deformation under external force. Utility Model Content
[0003] To address the technical problem of unstable license plate light pin position, this utility model proposes an assembly structure for the license plate light pin.
[0004] An assembly structure for a license plate light pin includes a circuit board with a through hole through which a pin passes and can be fixed to the circuit board; and a protective sleeve in which the pin is embedded to stabilize its position; the protective sleeve is connected to the circuit board via a limiting post.
[0005] The pin has an integrally formed protrusion on its side to prevent it from detaching from the protective sleeve.
[0006] The protective sleeve has an angled guide structure at its front end.
[0007] The circuit board 1 has an LED soldered to the bottom as a light source.
[0008] Technical effects:
[0009] Because automotive lamp pins are relatively thin, this invention solves the technical problems of unstable pin position and easy deformation under external force by adding a protective sleeve to the pin. The pin is soldered to the circuit board through a through hole, and a limiting post is added to fix the protective sleeve, further stabilizing the pin position, reducing the scrap rate in the production process, and improving the stability of the pin. This license plate light pin assembly structure can be applied to the automated assembly design of various lamps. The structure is simple, the protective sleeve is small, and the lamp position is not restricted during use. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0011] Figure 2 This is a schematic diagram of the bottom structure of an embodiment of the present utility model.
[0012] Figure 3 This is a schematic diagram of the structure after removing the protective cover in an embodiment of this utility model. Detailed Implementation
[0013] To make the objectives, technical solutions, and technical effects of this utility model clearer, the specific embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.
[0014] like Figures 1-3 As shown, this embodiment provides an assembly structure for a license plate light pin, including a circuit board 1 with a through hole, through which a pin 2 passes and is soldered to the circuit board 1; and a protective sleeve 3, in which the pin 2 is embedded to stabilize its position; the protective sleeve 3 is connected to the circuit board 1 by a limiting post 4.
[0015] Furthermore, the side of the pin 2 has an integrally formed protrusion. The protrusion is made of elastic material. By squeezing the protrusion into the protective sleeve, it can prevent it from detaching from the protective sleeve. The protrusion can be a cuboid, a cube, or an inverted trapezoid.
[0016] Furthermore, the protective sleeve 3 has an angled guide structure at its front end, which ensures that the pin 2 is accurately inserted into the connector when connecting the wire harness end, so that the license plate light can be lit normally.
[0017] Furthermore, the circuit board 1 has an LED 5 soldered to the bottom as a light source, and also includes a housing and a light distribution lens welded together by ultrasonic welding. The housing is snapped together with the circuit board 1 on the side near the LED 5, and works with the light distribution lens to make the license plate light emit light evenly.
Claims
1. An assembly structure for a license plate light pin, characterized in that, It includes a circuit board (1) with a through hole through which a pin (2) passes and can be fixed to the circuit board (1); and a protective sleeve (3) in which the pin (2) is embedded to stabilize the position of the pin (2); the protective sleeve (3) is connected to the circuit board (1) through a limiting post (4).
2. The assembly structure of a license plate light pin according to claim 1, characterized in that, The pin (2) has an integrally formed protrusion on its side, which can prevent it from detaching from the protective sleeve (3).
3. The assembly structure of a license plate light pin according to claim 1, characterized in that, The protective sleeve (3) has an angled guide structure at its front end.
4. The assembly structure of a license plate light pin according to claim 1, characterized in that, The circuit board (1) has an LED (5) soldered to the bottom as a light source, and also includes a housing and a lens that are ultrasonically welded together. The housing is snapped together with the circuit board on the side near the LED (5).