Front combination lamp structure

By optimizing the light guide strip and PCB board mounting structure of the front combination light, the problem of bright spots at the corners was solved, achieving a more uniform light emission effect and reducing costs.

CN223882194UActive Publication Date: 2026-02-06ZHEJIANG LED HEART AUTO PARTS CO LTD
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Patent Information

Application Number
CN202522781164.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-02-06
Estimated Expiration
2035-12-29

AI Technical Summary

Technical Problem

Bright spots are prone to appear at the corners of the signal lights in existing front combination lights, and traditional optical solutions are either costly or poorly designed.

Method used

The design employs a split decorative frame structure, with the light guide strip and PCB lamp board working together. By converging at the end of the light guide strip and setting up light-blocking ribs, combined with the use of an aluminum-plated layer and a light-transmitting plate, the installation and layout of the light guide strip are optimized to reduce bright spots at corners and improve the uniformity of light emission.

Benefits of technology

It effectively reduces bright spots at corners, improves the overall uniformity and aesthetics of light emission, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a front combination lamp structure which comprises a first decoration frame, a second decoration frame, a first light guide strip, a second light guide strip, a first PCB lamp panel and a second PCB lamp panel. According to the scheme, the split decoration frame structure is adopted so that the first light guide strip and the second light guide strip can be conveniently arranged, and a second cavity opening can be used for displaying of the first light guide strip and the second light guide strip so that attractiveness can be improved; and the positions of the corresponding tail ends of the first light guide strip and the second light guide strip are limited, for example, the tail ends are converged at the corner to display a complete arc shape during light emitting, the first tail end of the first light guide strip is located on the side of the second cavity opening, and a light blocking rib is additionally arranged at the second tail end of the second light guide strip, so that bright spots at the corner are weakened under the cooperation, and the overall uniformity is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to lamp device technical field, concretely relates to a front combination lamp structure. BACKGROUND

[0002] With the development of automobile, the modeling of car lamp is changing day by day, and the modeling of the light emitting area of signal lamp in front combination lamp is also more and more peculiar.

[0003] In the current market, the signal lamp in the front combination lamp is affected by the modeling of car lamp, and the optical scheme is usually realized by the way of LED module plus thickened wall piece or LED module plus reflector. Such a way can cope with complex modeling, but the defect is that the cost is relatively high. Some enterprises adopt the alternative optical scheme of LED module plus light guide strip. Such a way can ensure to meet the function of signal lamp at a lower cost, but due to unreasonable design, bright spot phenomenon easily occurs at the corner (or called C type area), which needs to be improved. UTILITY MODEL CONTENT

[0004] In order to solve at least one of the above technical defects, the utility model provides the following technical scheme:

[0005] The application discloses a front combination lamp structure, which comprises a decorative frame one, a decorative frame two, a light guide strip one, a light guide strip two, a PCB lamp plate one and a PCB lamp plate two. The decorative frame two is arranged on the decorative frame one, and the corresponding positions of the two are provided with cavity mouths one for light emission. The light guide strip one and the light guide strip two are arranged below the decorative frame two and around the cavity mouths one of the decorative frame one. The decorative frame two is not light-transmitting, and the positions corresponding to the light guide strip one and the light guide strip two of the decorative frame two are provided with cavity mouths two for light emission. The first ends of the light guide strip one and the light guide strip two are correspondingly provided with the PCB lamp plate one and the PCB lamp plate two. The second tail end of the light guide strip two and the first tail end of the light guide strip one converge at the corner around the cavity mouth one in the decorative frame one, and the first tail end of the light guide strip one is located at the side of the cavity mouth two in the decorative frame one, so that the decorative frame one shields the light emission of the first tail end of the light guide strip one. The second tail end of the light guide strip two and the adjacent light guide strip one are separated by the light blocking rib arranged at the decorative frame one.

[0006] In the scheme, the split decorative frame structure is adopted to facilitate the arrangement of the light guide strip one and the light guide strip two. The cavity mouth two can be used for the display of the light guide strip one and the light guide strip two to improve the appearance and limit the positions of the tail ends of the light guide strip one and the light guide strip two, such as converging at the corner to display a complete arc shape during light emission. The first tail end of the light guide strip one is located at the side of the cavity mouth two, and the second tail end of the light guide strip two is provided with a light blocking rib, which helps to weaken the bright spot at the corner and improve the overall light emission uniformity.

[0007] Further, the light guide strip one is arranged in the groove one formed at one side of the cavity opening of the decorative frame one, the light guide strip support is arranged at the side of the cavity opening of the decorative frame one, and the light guide strip two is arranged on the light guide strip support at least partially, the groove one is arranged to improve the convenience and stability of the arrangement of the light guide strip one, and the light guide strip support is arranged to reduce the structural complexity of the decorative frame and improve the convenience and stability of the arrangement of the light guide strip two.

[0008] Further, the groove one is arranged at one side of the cavity opening of the decorative frame one, the groove two is arranged at the other side, the groove three for arranging the light guide strip two is arranged on the light guide strip support, and the groove three is communicated with the groove two to form the arrangement groove for arranging the light guide strip two, the light blocking rib is arranged at the communication position of the groove two and the groove one, the arrangement of the groove one, the groove two and the groove three facilitates the arrangement of the light guide strip, and the light spot phenomenon at the corner is reduced.

[0009] Further, the groove one, the groove two and the groove three are provided with the aluminum plating layer, and the aluminum plating layer helps to improve the brightness and make the overall light emission more uniform.

[0010] Further, the PCB lamp plate two is fixedly connected to the light guide strip support, and the PCB lamp plate one is fixedly connected to the decorative frame one, so that the installation is facilitated.

[0011] Further, the light source of the PCB lamp plate one is opposite to the first end of the light guide strip one, and the light source of the PCB lamp plate two is opposite to the first end of the light guide strip two, the light is incident at the first end, and then is converged at the end of the corner, so that the uniformity of the overall light emission is improved.

[0012] Further, the decorative frame one around the cavity opening one is formed by a milky white diffusion material, and the overall light emission uniformity is improved.

[0013] Further, the light transmission plate for sealing is arranged at the cavity opening two, and the sealing property is improved.

[0014] Further, the corresponding tail end of the light guide strip one and the light guide strip two is provided with the groove four extending along the length direction of the light guide strip, and the light spot at the corner is weakened.

[0015] Further, the decorative frame three is arranged on the decorative frame one protruding from the cavity opening one of the decorative frame two.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model discloses the installation and layout structure of light guide strip, and the light spot at the corner is weakened, and the uniformity of the overall light emission is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0019] Figure 1 is the overall structure schematic diagram of the front combination lamp in embodiment 1;

[0020] Figure 2 is the exploded structure schematic diagram of the front combination lamp in embodiment 1;

[0021] Figure 3 is the structure schematic diagram of the decoration frame one in embodiment 1;

[0022] Figure 4 is the installation structure schematic diagram of the light guide strip one and the light guide strip two at the decoration frame two in embodiment 1;

[0023] Figure 5 is the structure schematic diagram of the decoration frame two in embodiment 1;

[0024] Among them, the reference signs are:

[0025] 1, decoration frame one; 2, decoration frame two; 3, decoration frame three; 4, light guide strip one; 5, light guide strip two; 6, PCB lamp plate one; 7, PCB lamp plate two; 8, light guide strip support; 9, cavity one; 10, light transmission plate; 11, cavity two; 12, groove one; 13, groove two; 14, groove three; 15, first tail end; 16, second tail end; 17, light blocking rib; 18, groove four. DETAILED DESCRIPTION

[0026] The present application will be further described in conjunction with the drawings and specific embodiments.

[0027] Embodiment 1

[0028] As Figure 1 , Figure 2 , Figure 3As shown, one front combination lamp structure in the example includes decorative frame one 1, decorative frame two 2, light guide strip one 4, light guide strip two 5, PCB lamp panel one 6, and PCB lamp panel two 7. Decorative frame one 1 is mounted with decorative frame two 2, and both have cavity one 9 shaped for light emission at corresponding positions. When applied, such as the light emitting end of a lamp installed at cavity one 9 of decorative frame one 1, the specific configuration of decorative frame one 1 and decorative frame two 2 can be selected according to requirements. Preferably, decorative frame one 1 is shaped with a milky white diffusing material, such as acrylic material. Of course, it can also be shaped with a milky white diffusing material only at the side of cavity one 9 to improve the uniformity of light emission. For decorative frame two 2, decorative frame two 2 is shaped with a non-transparent material.

[0029] As shown in Figure 3 , Figure 4 , Figure 5 , light guide strip one 4 and light guide strip two 5 in the example are placed below decorative frame two 2 and around cavity one 9 of decorative frame one 1. Decorative frame two 2 has cavity two 11 shaped for light emission at positions corresponding to light guide strip one 4 and light guide strip two 5. The second tail end 16 of light guide strip two 5 converges with the first tail end 15 of light guide strip one 4 at the corner of the periphery of cavity one 9 in decorative frame one 1, as shown in Figure 4 , and the first tail end 15 of light guide strip one 4 is at the side of cavity two 11 of decorative frame one 1 to shield the first tail end 15 of light guide strip one 4 with decorative frame one 1. The second tail end 16 of light guide strip two 5 is separated from the adjacent light guide strip one 4 by the light blocking rib 17 protruding at decorative frame one 1 to shield the light emitted from the end face of the second tail end 16 of light guide strip two 5 with the light blocking rib 17 to reduce the amount of light shining on light guide strip one 4, weaken the light spot, and make the overall light emission more uniform.

[0030] The leading ends of light guide strip one 4 and light guide strip two 5 in the example are correspondingly mounted with matching PCB lamp panel one 6 and PCB lamp panel two 7, and the light emitted by PCB lamp panel one 6 and PCB lamp panel two 7 is conducted through the corresponding light guide strips. To facilitate the placement of the light guide strips, light guide strip one 4 in the example is placed in the groove one 12 shaped at the side of cavity one 9 in decorative frame one 1, as shown in Figure 4 , Figure 5 , the side of cavity one 9 in decorative frame one 1 is mounted with a light guide strip support 8 through screws or buckles, and light guide strip two 5 is at least partially on the light guide strip support 8. Adding the light guide strip support 8 can simplify the structure of decorative frame one 1 and facilitate shaping. Preferably, a groove two 13 is shaped at the other side adjacent to the position of groove one 12, the light guide strip support 8 has a groove three 14 for the placement of light guide strip two 5, the groove three 14 is connected with the groove two 13 to form a placement groove for the installation of light guide strip two 5, and the groove two 13 is connected with the groove one 12 to form a light blocking rib 17, which facilitates the installation of light guide strip one 4 and light guide strip two 5.

[0031] For the installation of the PCB lamp plate one 6 and the PCB lamp plate two 7, the PCB lamp plate one 6 is installed at the decorative frame one 1 at the first end of the light guide strip one 4 in this example, the light source (such as LED lamp bead) on the PCB lamp plate one 6 is opposite to the first end face of the light guide strip one 4, the light emitted by the light source is propagated through the light guide strip one 4, the PCB lamp plate two 7 is installed on the light guide strip support 8 at the first end of the light guide strip two 5, the light source on the PCB lamp plate two 7 is opposite to the first end face of the light guide strip two 5, the light emitted by the light source is propagated through the light guide strip two 5, the layout of the light entering from the first end and then converging at the end of the corner is helpful to improve the uniformity of the overall light emission.

[0032] An aluminum plating layer can also be added at the groove wall of the groove one 12, the groove two 13 and the groove three 14, such as forming an aluminum film at the groove wall by means of evaporation, sputtering, electroplating and the like, that is, the aluminum plating layer, which can improve the brightness and make the overall light emission more uniform.

[0033] And the groove four 18 extending along the length direction of the light guide strip is formed at the peripheral wall of the first tail end 15 of the light guide strip one 4 and the second tail end 16 of the light guide strip two 5, which is helpful to weaken the bright spot at the corner.

[0034] In order to improve the sealing performance, the light transmission plate 10 is installed at the cavity opening two 11 in this example. In order to improve the aesthetic performance, the decorative frame three 3 can also be added, the decorative frame one 1 protrudes from the cavity opening one 9 of the decorative frame two 2, and the decorative frame three 3 is fixed on the decorative frame one 1 protruding from the cavity opening one 9, which is helpful to improve the aesthetic performance.

[0035] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A front combination lamp structure characterized by comprising: The application relates to a light guide strip and a light guide strip installation structure, which comprises a decorative frame one (1), a decorative frame two (2), a light guide strip one (4), a light guide strip two (5), a PCB lamp plate one (6) and a PCB lamp plate two (7). The decorative frame two (2) is arranged on the decorative frame one (1) and is provided with a cavity one (9) for light emission at corresponding positions. The light guide strip one (4) and the light guide strip two (5) are arranged below the decorative frame two (2) and surround the cavity one (9) of the decorative frame one (1). The decorative frame two (2) is not light-transmitting, and is provided with a cavity two (11) for light emission at positions corresponding to the light guide strip one (4) and the light guide strip two (5). The light guide strip one (4) and the light guide strip two (5) are correspondingly provided with the PCB lamp plate one (6) and the PCB lamp plate two (7) at the first ends. The second tail end (16) of the light guide strip two (5) and the first tail end (15) of the light guide strip one (4) converge at the corner of the cavity one (9) in the decorative frame one (1). The first tail end (15) of the light guide strip one (4) is arranged at the side of the cavity two (11) in the decorative frame one (1) to shield the light emission of the first tail end (15) of the light guide strip one (4). The second tail end (16) of the light guide strip two (5) is separated from the adjacent light guide strip one (4) by a light blocking rib (17) arranged on the decorative frame one (1).

2. A front combination lamp arrangement according to claim 1, characterized in that: The light guide strip one (4) is arranged in the groove one (12) formed at the side of the cavity one (9) of the decorative frame one (1). The light guide strip support (8) is arranged at the side of the cavity one (9) in the decorative frame one (1), and the light guide strip two (5) is arranged on the light guide strip support (8).

3. A front combination lamp arrangement according to claim 2, characterized in that: The groove one (12) is arranged at the side of the cavity one (9) in the decorative frame one (1), and the groove two (13) is arranged at the other side. The light guide strip two (5) is arranged in the groove three (14) of the light guide strip support (8), and the groove three (14) is communicated with the groove two (13) to form a mounting groove for the light guide strip two (5). The light blocking rib (17) is arranged at the communication position of the groove two (13) and the groove one (12).

4. A front combination lamp arrangement according to claim 3, characterized in that: The groove one (12), the groove two (13) and the groove three (14) are provided with an aluminum plating layer.

5. A front combination lamp structure as defined in claim 2 wherein: The PCB lamp plate two (7) is fixedly connected to the light guide strip support (8), and the PCB lamp plate one (6) is fixedly connected to the decorative frame one (1).

6. A front combination lamp structure as defined in claim 1 wherein: The light source of the PCB lamp plate one (6) is opposite to the first end of the light guide strip one (4), and the light source of the PCB lamp plate two (7) is opposite to the first end of the light guide strip two (5).

7. A front combination lamp structure as defined in claim 1 wherein: The decorative frame one (1) around the cavity one (9) is formed by a milky white diffusion material.

8. A front combination lamp structure as defined in claim 1 wherein: The light-transmitting plate (10) is arranged at the cavity two (11) for sealing.

9. A front combination lamp structure as defined in claim 1 wherein: The corresponding tail ends of the light guide strip one (4) and the light guide strip two (5) are provided with the groove four (18) extending along the length direction of the light guide strip.

10. A front combination lamp structure as defined in claim 1, wherein: The decorative frame three (3) is arranged on the decorative frame one (1) protruding from the cavity one (9).