Headlamp height adjustment switch assembly

Abstract

The utility model discloses a kind of headlamp height adjustment switch assembly, including panel, shell, PCBA component and knob, the PCBA component is fixedly installed in shell, the panel is fixedly installed in shell, the knob is rotatably installed on shell, and knob part is exposed outside panel, further including spring one, spring two, ball and moving contact, the shell has multiple gear half-ring gear parts, the shape of the half-ring gear part is wavy, the PCBA component has a half-ring contact and multiple disconnected contacts, the knob is provided with installation groove one and installation groove two, spring one and ball are sequentially installed in installation groove one, and ball can be clamped into any gear under the action of spring one, spring two and moving contact are installed in installation groove two, and simultaneously under the action of spring two, moving contact can electrically conduct half-ring contact and any disconnected contact.

Description

Technical Field

[0001] This utility model belongs to the field of switch assembly technology and relates to a headlight height adjustment switch assembly. Background Technology

[0002] The headlight height adjustment switch assembly is typically located below the car's dashboard. Drivers can manually adjust the headlight height to precisely control the headlight beam height. This adjustment function is crucial because under different road conditions—such as on smooth highways, bumpy country roads, or rugged mountain roads—and when the vehicle load changes (e.g., when fully loaded with passengers or carrying heavy loads causing a change in vehicle height), the headlight beam angle needs to be adjusted accordingly. This ensures the headlights consistently provide good illumination, illuminating the road ahead for the driver's clear vision while preventing unnecessary interference and glare for other road users due to excessively high beam angles. Ultimately, this guarantees safety and comfort during nighttime driving.

[0003] The currently used headlight height adjustment switch assemblies often suffer from insufficient tactile feedback when rotating, making it difficult for operators to accurately rotate the switch to the correct position, resulting in improper operation. Furthermore, the position limiting structure within the headlight height adjustment switch assembly is subjected to significant forces during use, and is prone to wear after prolonged use. Therefore, designing a new headlight height adjustment switch assembly to address these issues is particularly necessary. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a headlight height adjustment switch assembly.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a headlight height adjustment switch assembly, comprising a panel, a housing, a PCBA assembly, and a knob. The PCBA assembly is fixedly installed inside the housing, the panel is fixedly installed outside the housing, and the knob is rotatably mounted on the housing, with a portion of the knob exposed outside the panel. The assembly is characterized by further comprising a first spring, a second spring, a ball bearing, and a moving contact piece. The housing has a semi-circular position portion with multiple positions, the semi-circular position portion being wavy in shape. The PCBA assembly has a semi-circular contact and multiple disconnected contacts. The knob has a first mounting groove and a second mounting groove. The first spring and the ball bearing are sequentially installed in the first mounting groove, and under the action of the first spring, the ball bearing can be engaged in any position. The second spring and the moving contact piece are installed in the second mounting groove, and under the action of the second spring, the moving contact piece can electrically connect the semi-circular contact and any disconnected contact.

[0006] The housing has a mounting shaft, and the axis of the mounting shaft overlaps with the axis of the semi-annular stop portion.

[0007] The knob has a mounting hole in the middle, and the mounting hole is rotatably connected to the mounting shaft.

[0008] The knob has a limiting head, and the housing has a semi-annular groove that mates with the limiting head.

[0009] The ball is a steel ball.

[0010] By adopting the above technical solution, the beneficial effects of this utility model are: This invention features a knob with multiple adjustable gears, allowing the driver to clearly perceive gear changes when turning the knob, preventing incorrect operation and improving user comfort. Simultaneously, the design incorporates a ball bearing and spring, achieving smooth rolling with a certain degree of damping, which not only enhances operational convenience but also extends the lifespan of the rolling adjustment, thereby improving driving safety. Attached Figure Description

[0011] Figure 1 This is an exploded view of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 2 ; Figure 4 This is a three-dimensional structural diagram of the knob in this utility model; Figure 5 This is a three-dimensional structural diagram of the PCBA component in this utility model; Figure 6 This is a three-dimensional structural diagram of the shell in this utility model; Figure 7 This is a three-dimensional structural schematic diagram of the present invention; In the diagram: 1. Panel; 2. Housing; 2a. Limiting head; 2b. Semi-circular stop section; 2c. Mounting shaft; 3. Moving contact piece; 4. PCBA assembly; 4a. Semi-circular contact; 4b. Disconnect contact; 5. Knob; 5a. Limiting head; 5b. Mounting slot one; 5c. Mounting slot two; 5d. Assembly hole; 6. Spring one; 7. Ball bearing; 8. Spring two. Detailed Implementation

[0012] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0013] like Figure 1-7 As shown, this headlight height adjustment switch assembly includes a panel 1, a housing 2, a PCBA assembly 4, and a knob 5. In this embodiment, the housing 2 consists of an outer shell and a cover plate, facilitating the processing and assembly of the housing 2. The PCBA assembly 4 is fixedly installed inside the housing 2, and the panel 1 is fixedly installed outside the housing 2. In this embodiment, the installation of the PCBA assembly 4 and the panel 1 adopts existing technology. The knob 5 is rotatably mounted on the housing 2, and a part of the knob 5 is exposed outside the panel 1. It also includes a first spring 6, a second spring 8, a ball 7, and a moving contact piece 3. Specifically, the ball 7 is a steel ball. The housing 2 has a semi-annular position part 2b with multiple positions. The semi-annular position part 2b has a wave-shaped shape. The semi-annular position part 2b adopts an existing structure, and its corresponding recessed position is the... The corresponding gear positions are four in number; the PCBA assembly 4 has one semi-circular contact 4a and multiple disconnected contacts 4b, with four disconnected contacts 4b. The semi-circular contact 4a and disconnected contact 4b on the PCBA assembly 4 are obtained using existing manufacturing methods; the knob 5 has a first mounting slot 5b and a second mounting slot 5c. The first spring 6 and the ball 7 are installed in the first mounting slot 5b in sequence, and under the action of the first spring 6, the ball 7 can be inserted into any gear position. The second spring 8 and the moving contact 3 are installed in the second mounting slot 5c. At the same time, under the action of the second spring 8, the moving contact 3 can electrically connect the semi-circular contact 4a and any disconnected contact 4b. After electrical connection, the headlight height adjustment is achieved, which uses existing technology.

[0014] The housing 2 has a mounting shaft 2c, and the axis of the mounting shaft 2c overlaps with the axis of the semi-annular stop part 2b; the knob 5 has an assembly hole 5d in the middle, and the assembly hole 5d is rotatably connected to the mounting shaft 2c.

[0015] The knob 5 has a limiting head 2a, and the housing 2 has a semi-annular groove that mates with the limiting head 2a. With this structure, the knob 5 can be rotated within the required range.

[0016] The headlight height adjustment switch assembly is composed of multiple components and will be described in two parts. First, spring 6 and spring 8 are installed in mounting slots 5b and 5c of the knob 5. Then, the ball 7 is assembled to spring 6, and the moving contact 3 is assembled to spring 8, forming the knob assembly. The second part involves assembling the knob assembly onto the housing 2, then placing the PCBA assembly 4 inside the housing 2, and finally assembling it onto the housing 2 via the panel 1.

[0017] In actual use, to achieve an operating angle of 135°±0.5°, a switching angle of 45° between adjacent gears, and an operating torque of (2.45±1.2) N.cm, a unique structural fit between the housing 2, PCBA assembly 4, and knob assembly 5 is achieved. Furthermore, the spring 1 and ball 7 in the knob assembly bounce on the uniquely designed semi-circular gear position 2b of the housing 2, changing gears every 45°, for a total of 4 gears, thus providing a smooth gear shifting feel.

[0018] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0019] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A headlight height adjustment switch assembly, comprising a panel (1), a housing (2), a PCBA assembly (4), and a knob (5), wherein the PCBA assembly (4) is fixedly mounted inside the housing (2), the panel (1) is fixedly mounted outside the housing (2), and the knob (5) is rotatably mounted on the housing (2), with a portion of the knob (5) exposed outside the panel (1), characterized in that, It also includes spring 1 (6), spring 2 (8), ball (7) and moving contact (3). The housing (2) has a semi-circular gear part (2b) with multiple gear positions. The semi-circular gear part (2b) is wavy in shape. The PCBA assembly (4) has a semi-circular contact (4a) and multiple disconnected contacts (4b). The knob (5) has a mounting groove 1 (5b) and a mounting groove 2 (5c). Spring 1 (6) and ball (7) are installed in the mounting groove 1 (5b) in sequence. Under the action of spring 1 (6), ball (7) can be inserted into any gear position. Spring 2 (8) and moving contact (3) are installed in the mounting groove 2 (5c). Under the action of spring 2 (8), moving contact (3) can electrically connect the semi-circular contact (4a) and any disconnected contact (4b).

2. The headlight height adjustment switch assembly according to claim 1, characterized in that, The housing (2) has a mounting shaft (2c), and the axis of the mounting shaft (2c) overlaps with the axis of the semi-annular stop part (2b).

3. The headlight height adjustment switch assembly according to claim 2, characterized in that, The knob (5) has an assembly hole (5d) in the middle, and the assembly hole (5d) is rotatably connected to the mounting shaft (2c).

4. The headlight height adjustment switch assembly according to claim 1, characterized in that, The knob (5) has a limiting head (2a), and the housing (2) has a semi-annular groove that mates with the limiting head (2a).

5. The headlight height adjustment switch assembly according to claim 1, characterized in that, The ball (7) is a steel ball.

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