High-brake light guide capable of achieving multiple lighting effects
By using dual-color injection molding and black sheet design, combined with light guide bracket and heat sink, the problem of dull and uneven lighting effect of high-pressure light guide is solved, realizing a variety of dynamic lighting effects and improving luminous flux, reducing costs and improving structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-17
AI Technical Summary
Existing high-pressure light guides suffer from problems such as unnatural lighting effects, increased costs, or uneven optical areas when achieving various lighting effects due to improper shading of optical components.
It adopts dual-color injection molded outer parts, combined with transparent and high-gloss opaque black sheet design, built-in light guide bracket and heat sink, and fixes each component by vibration friction welding to achieve uniform light mixing and a variety of lighting effects.
Without adding parts or changing the light-emitting area, three different lighting effects were achieved, including a gradual brightening and dimming breathing effect, which improved luminous flux and lighting uniformity, reduced costs, and ensured structural stability.
Smart Images
Figure CN224005297U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-pressure light guide technology, and in particular to a high-pressure light guide that can achieve multiple lighting effects. Background Technology
[0002] A light guide is a structural component that directs light emitted from an LED from the PCB to the front panel or the light-emitting position. This component is typically made of PC or PMMA material and has excellent light-guiding properties. In China, some engineers also refer to light guides as light pipes or light guide columns.
[0003] The existing high-brightness light guide for achieving multiple lighting effects has the following drawbacks:
[0004] 1. For high-brightness lamps where there are no other optical components obstructing the light guide, the entire light-emitting area can be seen with a continuous striped pattern, resulting in a rather dull lighting effect;
[0005] 2. Adding an internal high-speed brake lamp in front of the light guide will make the light guide teeth invisible in the entire light-emitting area, and the lighting effect will still be relatively simple. The cost will also increase due to the addition of the component.
[0006] 3. For high-brake lamps with added texture / patterns on the inner surface of the dual-color outer casing, due to the limitation of the mold sealing rib, the perimeter of the light-emitting area on the inner surface of the outer casing must be at least 1mm wide to prevent the addition of texture / patterns. This results in a large difference in area between the area without texture / patterns and the area with texture / patterns, leading to poor lighting effect. Utility Model Content
[0007] To solve the above-mentioned technical problems, this utility model provides a high-brightness light guide that can achieve multiple lighting effects.
[0008] This utility model is achieved using the following technical solution: a high-performance light guide that achieves multiple lighting effects, comprising an outer casing, an inner light guide that is snapped into the outer casing, an inner light guide bracket that is inserted into the outer casing, a circuit board that is fixedly connected to the inner casing, a heat sink that is inserted into the inner casing, a mounting shell that is snapped into the front of the outer casing, a lamp body that is fixedly connected to the inner casing, a positioning slot that is provided inside the mounting shell, a locking screw that is threaded inside the mounting shell, an outer black sheet that is fixedly connected to the inner casing, and a light-emitting component that is fixedly connected to the inner casing.
[0009] Through the above technical solution, the solution achieves three different lighting effects using only one light guide without adding any parts or changing the light-emitting area. The lighting is not limited to static patterns and can achieve a breathing effect of gradually brightening and fading when the car is started or unlocked.
[0010] As a further improvement to the above solution, the light guide bracket is snapped into the inside of the light guide, the light guide bracket is located inside the mounting housing, and the light guide is located inside the mounting housing.
[0011] With the above technical solution, the light guide is a transparent component used to fully mix and uniformly distribute the emitted light from the LED, and then propagate it through total internal reflection inside the light guide. The back of the light guide has two rows of staggered light guide teeth that are symmetrically arranged along the center line. The front of the light guide is a smooth arc surface. The diameter of the light guide head is small, and the diameter of the light-emitting area is larger, which can achieve the purpose of light mixing with a shorter distance, making the lighting more uniform.
[0012] As a further improvement to the above solution, the heat sink is inserted into the front of the light guide bracket and snapped into the inside of the mounting housing.
[0013] Through the above technical solution, the light guide bracket is a white, opaque, high-gloss component. It is C-shaped and wraps the light guide inside, so that the light emitted from the light guide is reflected back to the light outlet area, thereby increasing the luminous flux. This can better meet the regulatory requirements of high-speed brake lights and expand the lighting area. After the light guide bracket and the light guide clip are pre-installed, they are then installed on the lamp body together with screws.
[0014] As a further improvement to the above solution, the mounting housing is located on the front side of the circuit board and the mounting housing is located on the front side of the light guide.
[0015] With the above technical solution, a red LED light source is mounted on the circuit board, electronic components are used to drive the LED light source to emit light, the heat sink is made of metal aluminum, and the surface is anodized for insulation. Thermal grease is applied between the heat sink and the circuit board to increase thermal conductivity.
[0016] As a further improvement to the above solution, the locking screw extends through the outer casing and into the interior, and the number of locking screws is set to several.
[0017] As a further improvement to the above solution, the light-emitting component is located inside the outer casing and mounting housing, and the outer black sheet is located inside the outer casing and mounting housing.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model features a dual-color injection molded outer casing. The red sheet is a transparent red piece, while the black sheet is a high-gloss, opaque black piece. The red sheet wraps around the black sheet, serving two main purposes: to define the opening in the design and to protect the internal structure of the entire lamp. The inner surface of the outer casing has a localized optical texture, allowing the LED emitted light to form a uniformly illuminated light pattern in the textured area after passing through the light guide. The area on the outer casing used for projecting light has a high surface roughness to minimize the impact of the emitted light on the outer casing. Vibration friction welding is used between the outer casing and the lamp body, resulting in low cost, good weld appearance, and guaranteed airtightness.
[0020] This invention utilizes multiple locking screws that penetrate the outer casing and mounting housing, extending into the interior. This fixing method securely connects the outer casing and mounting housing, ensuring the integrity of the entire high-pressure light guide structure. It facilitates assembly and disassembly during production, as well as maintenance and component replacement. Various components inside the outer casing, such as the light guide, light guide bracket, and heat sink, are secured through the internal structure of the outer casing. This fixing method ensures stable relative positions between components, which is beneficial for the normal operation of the high-pressure light guide. For example, the circuit board is fixed inside the outer casing; a stable circuit board ensures reliable electrical connections and provides stable circuit support for achieving various lighting effects. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the anatomical structure of the lamp body of this utility model;
[0024] Figure 4 This is a schematic diagram of the anatomical structure of the present invention.
[0025] Explanation of key symbols:
[0026] 1. External components; 2. Light guide; 3. Light guide bracket; 4. Circuit board; 5. Heat sink; 6. Lamp body; 7. Mounting housing; 8. Positioning slot; 9. Locking screw; 10. External black sheet; 11. Light-emitting component. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0028] Please combine Figure 1-4This embodiment of a high-performance light guide for achieving multiple lighting effects includes an outer casing 1, a light guide 2 internally connected to the outer casing 1, a light guide 2 bracket internally inserted into the outer casing 1, a circuit board 4 fixedly connected internally to the outer casing 1, a heat sink 5 internally inserted into the outer casing 1, a mounting housing 7 fixedly connected to the front of the outer casing 1, a lamp body 6 fixedly connected internally to the mounting housing 7, a positioning slot 8 internally provided in the mounting housing 7, a locking screw 9 threadedly connected internally to the mounting housing 7, a black sheet of the outer casing 1 fixedly connected internally to the lamp body 6, and a light-emitting component 11 fixedly connected internally to the lamp body 6. By setting the outer casing 1 to be a two-color injection molded part, the red sheet is a red transparent part, and the black sheet is a black high-gloss opaque part. The red sheet is wrapped around the outer layer of the black sheet. The main purposes are twofold: to reflect the shape opening and to protect the internal structure of the entire lamp. The inner surface of the outer casing 1 has a local optical texture, so that the light emitted by the LED forms a uniformly lit light pattern in the texture area after passing through the light guide 2. The area on the outer part 1 used for projecting light has a high surface roughness to ensure that the projected light is affected by the outer part 1 as little as possible. Vibration friction welding is used between the outer part 1 and the lamp body 6, which is low-cost, produces good weld appearance, and ensures airtightness.
[0029] This solution achieves three different lighting effects using only one light guide 2, without adding any parts or changing the light-emitting area. The lighting is not limited to static patterns; it can achieve a breathing effect of gradually brightening and dimming when the car is started or unlocked.
[0030] The light guide 2 bracket is snapped into the inside of the light guide 2, and the light guide 2 bracket is located inside the mounting housing 7.
[0031] The light guide 2 is a transparent component used to fully mix the emitted light from the LED and then propagate it through total internal reflection inside the light guide 2. The back of the light guide 2 has two rows of staggered light guide teeth that are symmetrically arranged along the center line. The front of the light guide 2 is a smooth arc surface. The head diameter of the light guide 2 is small, while the corresponding diameter of the light-emitting area is large, which can achieve the purpose of light mixing with a shorter distance, making the lighting more uniform.
[0032] The heat sink 5 is inserted into the front of the light guide 2 bracket and snapped into the interior of the mounting housing 7. Multiple locking screws 9 extend through the outer casing 1 and the mounting housing 7 into the interior, ensuring a secure connection between the outer casing 1 and the mounting housing 7. This guarantees the integrity of the entire high-pressure light guide 2 structure, facilitates assembly and disassembly during production, and allows for easy maintenance and component replacement. Various components, such as the light guide 2, the light guide 2 bracket, and the heat sink 5, are secured within the outer casing 1 through its internal structure. This securing method ensures stable relative positions between components, which is beneficial for the normal operation of the high-pressure light guide 2. For example, the circuit board 4 is fixed inside the outer casing 1; a stable circuit board 4 ensures reliable electrical connections and provides stable circuit support for achieving various lighting effects.
[0033] The light guide 2 bracket is a white, opaque, high-gloss component. It is C-shaped and encloses the light guide 2 to reflect the light escaping from the light guide 2 back to the light outlet area, thereby increasing the luminous flux. This can better meet the regulatory requirements for high-speed brake lights and expand the lighting area. After the light guide 2 bracket is pre-installed with the light guide 2, it is then installed on the lamp body 6 using screws.
[0034] The mounting housing 7 is located on the front of the circuit board 4 and on the front of the light guide 2.
[0035] The circuit board 4 is equipped with a red LED light source, and electronic components are used to drive the LED light source to emit light. The heat sink 5 is made of aluminum and the surface is anodized for insulation. Thermal grease is applied between the heat sink 5 and the circuit board 4 to increase thermal conductivity.
[0036] The locking screw 9 extends through the outer fitting 1 and the mounting housing 7 into the interior, and the number of locking screws 9 is set to several.
[0037] The light-emitting component 11 is located inside the outer casing 1 and the mounting housing 7, and the black sheet of the outer casing 1 is located inside the outer casing 1 and the mounting housing 7.
[0038] The implementation principle of a high-speed light guide that achieves multiple lighting effects in this embodiment is as follows: The light from the LED on the circuit board 4 first passes through the mixing section at the head of the light guide 2. This mixing section is blocked by the black sheet of the outer casing 1. Within this mixing section, the light guide 2 has striped patterns around its perimeter, which can mix the light emitted from the LED at various angles into a uniform beam that propagates towards the rear. The teeth of the light guide 2 at its head are relatively fine, which can avoid the head's light-emitting area being too bright and excessive energy loss. The teeth of the light guide 2 are divided into two rows, upper and lower, symmetrically arranged along the center line of the light guide 2 and staggered. When the light from total internal reflection at the head of the light guide 2 propagates to the teeth of the light guide 2, the path of the total internal reflection is disrupted, and then the light is reflected out at a fixed angle, forming the teeth of the light guide 2 in the light-emitting area. The lighting effect is achieved by using a single light guide 1 with dual-color injection molding in red and black. The red part is transparent, while the black part is opaque and serves to block light, preventing stray light from escaping. The red part is the light-transmitting area, which is divided into three sections: the upper part of section A is smooth and transparent, the middle part of section B has a textured surface, and the lower part of section C is smooth and transparent. The entire outer surface of the light-transmitting area is smooth and transparent. The two rows of interlaced light guide teeth of the light guide 2 form interlaced light guide teeth in sections A and C of the outer part 1. The textured surface in the middle part disperses the light, creating a uniform lighting effect. This achieves three different lighting effects using only one light guide 2 without adding any parts or changing the light-emitting area.
[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A high light guide for implementing a plurality of lighting effects, characterized in that, Including the outer (1), the inside of the outer (1) is clamped with a light guide (2), the inside of the outer (1) is inserted with a light guide support (3), the inside of the outer (1) is fixedly connected with a circuit board (4), the inside of the outer (1) is inserted with a radiator (5), the front of the outer (1) is clamped with a mounting shell (7), the inside of the mounting shell (7) is fixedly connected with a lamp body (6), the inside of the mounting shell (7) is provided with a positioning clamping groove (8), the inside of the mounting shell (7) is threadedly connected with a locking screw (9), the inside of the lamp body (6) is fixedly connected with an outer black piece (10), and the inside of the lamp body (6) is fixedly connected with a light emitting assembly (11).
2. The high-speed light guide for achieving multiple lighting effects as described in claim 1, characterized in that: The light guide support (3) is clamped in the inside of the light guide (2), the light guide support (3) is located in the inside of the mounting shell (7), and the light guide (2) is located in the inside of the mounting shell (7).
3. A high-speed light guide for achieving multiple lighting effects as described in claim 1, characterized in that: The radiator (5) is inserted in the front of the light guide support (3), and the radiator (5) is clamped in the inside of the mounting shell (7).
4. A high-speed light guide for achieving multiple lighting effects as described in claim 3, characterized in that: The mounting shell (7) is located in the front of the circuit board (4), and the mounting shell (7) is located in the front of the light guide (2).
5. A high-speed light guide for achieving multiple lighting effects as described in claim 1, characterized in that: The locking screw (9) extends to the inside through the outer (1) and the mounting shell (7), and the number of locking screws (9) is several.
6. A high-speed light guide for achieving multiple lighting effects as described in claim 5, characterized in that: The light emitting assembly (11) is located in the inside of the outer (1) and the mounting shell (7), and the outer black piece (10) is located in the inside of the outer (1) and the mounting shell (7).