High-brightness automobile front decorative lamp with uniform lightening effect

Abstract

The high-brightness automobile front decorative lamp comprises a lamp shell, an outer lampshade, an inner lampshade, at least one inner lens and at least one PCBA, the outer surface of the inner lens is composed of a plurality of Fresnel patterns, the Fresnel patterns are composed of a plurality of first strip-shaped optical teeth which are symmetrically arranged on the two sides of the center line of the Fresnel patterns side by side, and the first strip-shaped optical teeth are arranged on the outer surface of the inner lens. Second strip-shaped optical teeth which are arranged side by side in the length direction of the inner lampshade light-transmitting belt are arranged on the outer side surface of the inner lampshade light-transmitting belt, and the projection of the LED lamp bead of each PCBA on the corresponding Fresnel pattern is located at or close to the midpoint position of the center line of the Fresnel pattern. By the adoption of the structure, the light emitting brightness of the automobile front decorative lamp can meet the application requirement, the light emitting uniformity of the automobile front decorative lamp can meet the application requirement, meanwhile, the requirement for the machining precision of the inner lens is greatly reduced, the yield is greatly increased, and the manufacturing cost of the automobile front decorative lamp is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a high-brightness automobile front decorative lamp with uniform lighting effect. Background Art

[0002] Some countries and regions allow the installation of front decorative lights on the front of the car to enhance the overall aesthetics of the car.

[0003] Please refer to the Chinese utility model patent with publication number CN214948811U. The applicant in this case has designed an inner lens that can evenly distribute light in the length and width directions of the inner lens through dense small optical surfaces, so that the lighting brightness of the entire inner lens is very uniform.

[0004] At present, automobile front decorative lights have high requirements for the brightness and uniformity of light emission. If the applicant applies the above inner lens to automobile front decorative lights, the light emitted by the LED lamp beads will be severely attenuated due to excessive uniform light distribution, especially through small optical surfaces in the width direction of the inner lens. The brightness of the inner lens output surface is not good and cannot meet the application requirements of automobile front decorative lights. Therefore, the brightness of the inner lens output surface can only be improved by replacing the LED lamp beads with higher power, which not only increases the cost, but also increases the heat generation, affecting the stability of the lamp. In addition, the dense small optical surfaces of the light output surface of the inner lens have extremely high processing accuracy requirements, resulting in a low yield rate and high manufacturing costs.

[0005] Solving the above problems has become a top priority. Utility Model Content

[0006] In order to solve the technical problems of poor brightness, great processing difficulty and high manufacturing cost when the applicant applies the inner lens with publication number CN214948811U to the front decorative lamp of an automobile, the utility model provides a high-brightness front decorative lamp of an automobile with uniform lighting effect.

[0007] The technical solution is as follows:

[0008] The first aspect of the present application relates to a high-brightness automotive front decorative lamp with uniform lighting effect, comprising a lamp housing, an outer lampshade, an inner lampshade, at least one inner lens and at least one PCBA, wherein the lamp housing and the outer lampshade together form a component installation cavity for accommodating the inner lampshade, the inner lens and the PCBA, the inner lampshade is installed on the inner side of the outer lampshade, and has at least one inner lampshade light-transmitting band made of a light-transmitting plastic material, each PCBA is installed on the inner side of the lamp housing, each inner lens is located between the inner lampshade and each PCBA, the inner surface of the inner lens has an inner lens light-incoming surface, the outer surface of the inner lens is composed of a plurality of Fresnel patterns, and the Fresnel pattern The invention is composed of a plurality of first optical strips symmetrically arranged side by side on both sides of the center line thereof, wherein the inclination angle of each first optical strip relative to the light-entering surface of the inner lens gradually increases with the increase of the distance from the center line of the Fresnel pattern, and the outer surface of the light-transmitting band of the inner lampshade is provided with second optical strips arranged side by side along the length direction thereof, and the second optical strips on the same light-transmitting band of the inner lampshade together form a wavy or sawtooth structure, and the side of each PCBA close to the inner lens is integrated with LED lamp beads corresponding to each Fresnel pattern respectively, and the projection of each LED lamp bead on the corresponding Fresnel pattern is located at or close to the midpoint of the center line of the Fresnel pattern.

[0009] In the high-brightness front decorative lamp for automobiles with uniform lighting effect, the inner lens itself is made of diffusion material, and the diffusion is carried out only by the material itself in the width direction of the inner lens, and not only by the material itself but also by the cooperation of the specially designed first strip-shaped optical teeth in the length direction of the inner lens, so that the brightness of the light emitted by the inner lens can meet the application requirements, and the uniformity of the light emitted by the inner lens can meet the application requirements, and there is no need to use high-power LED lamp beads, which reduces the manufacturing cost and heat generation, and improves the stability and reliability of the use of the high-brightness front decorative lamp for automobiles; at the same time, the second strip-shaped optical teeth with a wavy structure on the inner lampshade cooperate with the Fresnel pattern to further improve the uniformity of the final light emission and improve the light emission effect of the high-brightness front decorative lamp for automobiles; in addition, since the first strip-shaped optical teeth of the Fresnel pattern are in a side-by-side vertical stripe structure, compared with the dense small optical surface in the Chinese utility model patent with the publication number CN214948811U, the requirements for processing accuracy are greatly reduced, thereby greatly improving the yield rate and further reducing the manufacturing cost of the high-brightness front decorative lamp for automobiles.

[0010] In some embodiments, a plurality of first hot melt pins are integrally formed on the inner surface of the lamp housing, each PCBA is provided with a hot melt pin through hole respectively matched with the corresponding first hot melt pin, each inner lens is provided with a first fusion hole respectively matched with the corresponding first hot melt pin, each first hot melt pin is respectively passed through the corresponding hot melt pin through hole and the first fusion hole in sequence and then fixed to the corresponding inner lens by hot melting, so that the lamp housing and each inner lens are respectively clamped and fixed to each PCBA from both sides;

[0011] A plurality of second hot melt pins are integrally formed on the inner surface of the outer lampshade, and third hot melt pin through holes respectively matched with the corresponding second hot melt pins are opened on the inner lampshade, and each second hot melt pin passes through the corresponding third hot melt pin through hole and is fixed to the inner lampshade by hot melt, so that the outer lampshade and the inner lampshade are fixedly connected;

[0012] The gap between the lamp housing and the outer lamp cover is sealed by vibration friction welding.

[0013] In some embodiments, the inner side of the lamp housing is concavely formed with a receiving groove, the bottom of the groove protrudes to form supporting ribs with a honeycomb structure, each PCBA is supported on the supporting ribs, and each first hot melt pin is integrally formed at the bottom of the groove.

[0014] In some embodiments, there are at least two PCBAs, and adjacent PCBAs are electrically connected through wiring harnesses. The bottom of the accommodating groove is integrally formed with forced release buckles corresponding to each wiring harness, and each forced release buckle is adjacent to the groove wall of the accommodating groove, and a wiring harness clamping seam matched with the corresponding wiring harness is formed between the groove wall of the accommodating groove, and the middle part of each wiring harness is respectively clamped in the corresponding wiring harness clamping seam.

[0015] In some embodiments, each inner lens is integrally formed with a plurality of inner lens mounting seats, each inner lens mounting seat is provided with the first welding hole, and the outer end of each first hot melt pin is fixed to the corresponding inner lens mounting seat by hot melt.

[0016] In some embodiments, a surface of one side of the inner lens close to the PCBA is a light-entering surface of the inner lens, and the circumferential outer edge of the inner lens has a raised edge protruding toward the PCBA, and each inner lens mounting seat is integrally formed on the corresponding raised edge, and the projection of the LED lamp beads integrated on each PCBA on the corresponding inner lens is located on the light-entering surface of the inner lens.

[0017] In some embodiments, the circumferential outer edge of the lamp housing near the outer lampshade is protruded to form a lamp housing sealing edge, and the surface of the lamp housing sealing edge near the outer lampshade is a lamp housing sealing surface with a planar structure. The circumferential outer edge of the outer lampshade near the lamp housing is protruded to form a lampshade sealing edge that is adapted to the lamp housing sealing edge, and the surface of the lampshade sealing edge near the lamp housing is a lampshade sealing surface with a planar structure. The lampshade sealing surface is fitted with the lamp housing sealing surface and is sealed by vibration friction welding.

[0018] In some embodiments, a circle of sealing rib grooves is formed concavely on the sealing surface of the lamp housing, and a circle of sealing ribs matching the sealing rib grooves is formed protrudingly on the sealing surface of the lampshade, and the sealing ribs are embedded in the sealing rib grooves.

[0019] In some embodiments, the inner lampshade has an inner lampshade support body made of a light-shielding plastic material, and the inner lampshade support body and each inner lampshade light-transmitting band are integrally formed using a two-color injection molding process. The inner lampshade light-transmitting bands all protrude outward from the inner lampshade support body, and at least some of the inner lampshade light-transmitting bands are distributed in a linear array.

[0020] In some embodiments, the inner lens is made of polymethyl methacrylate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a front decorative lamp of a car from one perspective;

[0022] Figure 2 This is a structural diagram of the front decorative lamp of the car from another perspective;

[0023] Figure 3 It is a schematic diagram of the matching relationship between the lamp housing, each inner lens and each PCBA;

[0024] Figure 4 is a schematic diagram of the structure of the lamp housing;

[0025] Figure 5 It is a structural diagram of PCBA;

[0026] Figure 6 This is a schematic diagram of the structure of one of the viewing angles of the inner lens;

[0027] Figure 7 This is a schematic diagram of the structure of the inner lens from another viewing angle;

[0028] Figure 8 It is a schematic diagram of the matching relationship between the outer lampshade and the inner lampshade;

[0029] Fig. 9 is a schematic diagram of the structure of the outer lampshade;

[0030] Fig.10This is a schematic diagram of the structure of the inner lampshade from one of the viewing angles;

[0031] Fig.11 This is a structural diagram of the inner lampshade from another perspective;

[0032] Fig.12 It is a schematic diagram of the matching relationship between PCBA, inner lens and inner lampshade;

[0033] Fig.13 It is a schematic diagram of the matching relationship between the inner lens and the inner lampshade;

[0034] Fig.14 Schematic diagram of the matching relationship between PCBA and inner lens. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with embodiments and drawings.

[0036] like Figure 1-Figure 14 As shown, a high-brightness automotive front decorative lamp with uniform lighting effect mainly comprises a lamp housing 4, an outer lampshade 5, an inner lampshade 1, at least one inner lens 2 and at least one PCBA 3. The lamp housing 4 and the outer lampshade 5 together form a component installation cavity, and the inner lampshade 1, each inner lens 2 and each PCBA 3 are all located in the component installation cavity.

[0037] The inner lampshade 1 is installed on the inner side of the outer lampshade 5, and the inner lampshade 1 has at least one inner lampshade light-transmitting band 11 made of a light-transmitting plastic material. Each PCBA 3 is installed on the inner side of the lamp housing 4, and each inner lens 2 is located between the inner lampshade 1 and each PCBA 3, that is, the light emitted by each LED lamp bead 31 on the PCBA 3 first enters the inner lens 2, and the light emitted by the inner lens 2 is then emitted toward the inner lampshade 1, and the light emitted by each inner lampshade light-transmitting band 11 of the inner lampshade 1 is then transmitted through the outer lampshade 5.

[0038] In this embodiment, the inner surface of the inner lens 2 has a planar inner lens light-entering surface 21, which may also have other optical structures such as a concentrator, leather texture or optical pattern. The outer surface of the inner lens 2 is composed of a plurality of Fresnel patterns 22.

[0039] In the prior art, the Fresnel pattern 22 is usually composed of a plurality of concentric annular optical teeth, which have high brightness and good focusing effect. In the present embodiment, the Fresnel pattern 22 is composed of a plurality of first strip-shaped optical teeth 221 symmetrically arranged side by side on both sides of its center line, and the inclination angle of each first strip-shaped optical tooth 221 relative to the light-entering surface 21 of the inner lens gradually increases with the increase of the distance from the center line of the Fresnel pattern 22. Therefore, the Fresnel pattern 22 in the present embodiment can not only diffuse the light through the first strip-shaped optical teeth 221 of each vertical stripe structure and the gradually inclined design, so that the light output uniformity of the inner lens 2 meets the application requirements, but also has a certain focusing effect, so that the light output brightness of the inner lens 2 can meet the application requirements, thereby eliminating the need to use high-power LED lamp beads, reducing the manufacturing cost and heat generation, and improving the stability and reliability of the lamp. In addition, the first strip-shaped optical teeth 221 of each vertical stripe structure of the Fresnel pattern 22 greatly reduce the requirements for processing accuracy, thereby greatly improving the yield rate and further reducing the manufacturing cost.

[0040] At the same time, the outer surface of the inner lampshade light-transmitting belt 11 of the present embodiment is provided with second strip optical teeth 111 arranged side by side along the length direction thereof, and the second strip optical teeth 111 on the same inner lampshade light-transmitting belt 11 together form a wavy structure or a sawtooth structure. Therefore, the second strip optical teeth 111 with a wavy structure on the inner lampshade 1 cooperate with the Fresnel pattern 22 of the inner lens 2 to further improve the uniformity of the final light output and improve the light output effect.

[0041] In this embodiment, each PCBA 3 is integrated with LED lamp beads 31 corresponding to each Fresnel pattern 22 on one side close to the inner lens 2, and the projection of each LED lamp bead 31 on the corresponding Fresnel pattern 22 is located at or close to the midpoint of the center line of the Fresnel pattern 22. Therefore, through such a design, the LED lamp bead 31 is arranged near the midpoint of the center line of each Fresnel pattern 22, which not only has good light uniformity, but also high light brightness.

[0042] Furthermore, the material of the inner lens 2 is polymethyl methacrylate, which not only has an excellent diffusion effect on light, but also allows the light to diffuse to the surroundings, and has low cost. In this embodiment, the specific model of the material of the inner lens 2 is preferably PMMA df208N, which has excellent scratch resistance and weather resistance. At the same time, the inner lens 2 is integrally formed, which not only has high structural strength, but also ensures optical effects.

[0043] In this embodiment, the inner lampshade 1 has an inner lampshade support body 12 made of a light-shielding plastic material. The inner lampshade support body 12 and each inner lampshade light-transmitting band 11 are integrally formed using a two-color injection molding process. Not only does it have high structural strength, but it can also highlight the visual effect of each inner lampshade light-transmitting band 11, while also being able to block the internal PCBA3 to achieve the effect of concealing ugliness.

[0044] Furthermore, the inner lampshade light-transmitting bands 11 all protrude outward from the inner lampshade support body 12, which can present a three-dimensional lighting effect and further enhance the visual effect after lighting.

[0045] In this embodiment, each inner lampshade light-transmitting strip 11 is protruding to form a crystal structure with clear edges and corners, and has a beautiful appearance and a sense of technology.

[0046] Furthermore, at least part of the inner lampshade light-transmitting bands 11 are distributed in a linear array. Therefore, by controlling the lighting sequence and color of each LED lamp bead 31 through software, a unique crystal water effect can be formed, which is full of technological sense. Accordingly, each LED lamp bead 31 is an RGB LED lamp bead.

[0047] In this embodiment, a plurality of first hot melt pins 41 are integrally formed on the inner surface of the lamp housing 4, and each PCBA3 is provided with a hot melt pin through hole 32 respectively matched with the corresponding first hot melt pin 41, and each inner lens 2 is provided with a first fusion hole 231 respectively matched with the corresponding first hot melt pin 41. Each first hot melt pin 41 passes through the corresponding hot melt pin through hole 32 and the first fusion hole 231 in sequence and is fixed to the corresponding inner lens 2 by hot melting, that is: after the outer end of the first hot melt pin 41 is hot-melted, it solidifies and is fixed to the corresponding inner lens 2, so that the lamp housing 4 and each inner lens 2 are respectively clamped and fixed to each PCBA3 from both sides, so that the lamp housing 4, each inner lens 2 and each PCBA3 are fixed as a whole.

[0048] Similarly, a plurality of second hot-melt pins 51 are integrally formed on the inner surface of the outer lampshade 5, and the inner lampshade 1 is provided with third hot-melt pin through holes 121 respectively matched with the corresponding second hot-melt pins 51. Each second hot-melt pin 51 passes through the corresponding third hot-melt pin through hole 121 and is fixed to the inner lampshade 1 by hot-melting, that is: after the outer end of the second hot-melt pin 51 is hot-melted, it solidifies and is fixed to the corresponding inner lampshade 1, so that the outer lampshade 5 and the inner lampshade 1 are fixed as one.

[0049] Therefore, the lamp housing 4, each inner lens 2 and each PCBA 3 are fixed in place at one time by hot melting, and the outer lampshade 5 and the inner lampshade 1 are also fixed in place at one time by hot melting, which not only ensures the stability and reliability of long-term use, but also reduces the number of parts, improves assembly efficiency and reduces manufacturing cost.

[0050] It should be pointed out that each of the third hot melt pin through holes 121 is formed on the inner lampshade support body 12 , thereby avoiding the influence on each of the inner lampshade light-transmitting bands 11 .

[0051] In this embodiment, the gap between the lamp housing 4 and the outer lamp cover 5 is sealed by vibration friction welding. That is, the two parts fixed by hot melting are assembled and sealed by vibration friction welding, and the problem of debonding and water leakage is not likely to occur in long-term use, and the weather resistance is good.

[0052] Furthermore, a lamp housing sealing edge 42 is protruded from the circumferential outer edge of the lamp housing 4 near the outer lamp shade 5, and a lamp housing sealing surface 421 is formed in a planar structure on the surface of the lamp housing sealing edge 42 near the outer lamp shade 5. A lamp shade sealing edge 52 is protruded from the circumferential outer edge of the lamp housing 4 near the outer lamp shade 5, and the lamp shade sealing edge 42 is matched with the lamp housing sealing edge 42. A lamp shade sealing surface 521 is formed in a planar structure on the surface of the lamp shade sealing edge 52 near the lamp housing 4, and the lamp shade sealing surface 521 is matched with the lamp housing sealing surface 421, that is, the lamp shade sealing surface 521 is fitted with the lamp housing sealing surface 421, and then, the fitting gap between the lamp shade sealing surface 521 and the lamp housing sealing surface 421 is sealed by vibration friction welding, thereby further improving the sealing performance of the component mounting cavity and improving weather resistance.

[0053] Furthermore, a circle of sealing rib groove 422 is recessed on the lamp housing sealing surface 421, and a circle of sealing rib 522 matching the sealing rib groove 422 is protruded on the lamp shade sealing surface 521. The sealing rib 522 is embedded in the sealing rib groove 422. By setting the sealing rib 522 and the sealing rib groove 422, the sealing performance of the component installation cavity is improved, and the positioning of the lamp housing 4 and the outer lamp shade 5 during assembly is facilitated, thereby improving the convenience of assembly.

[0054] In this embodiment, each inner lens 2 is integrally formed with a plurality of inner lens mounting seats 23, each inner lens mounting seat 23 is provided with a first welding hole 231, and the outer ends of each first hot melt pin 41 are hot-melted and fixed to the corresponding inner lens mounting seat 23. Through such a design, the installation and cooperation are completed by the inner lens mounting seat 23, which improves the stability of the structure of the main part of the inner lens 2 and avoids deformation of the main part during installation.

[0055] Furthermore, the surface of one side of the inner lens 2 close to the PCBA3 is the inner lens light-entering surface 21, the circumferential outer edge of the inner lens 2 has a heightened edge 24 protruding toward the PCBA3, each inner lens mounting seat 23 is integrally formed on the corresponding heightened edge 24, and the projection of the LED lamp beads 31 integrated on each PCBA3 on the corresponding inner lens 2 is located on the inner lens light-entering surface 21, that is, each LED lamp bead 31 is located on the side of the PCBA3 close to the inner lens 2. Through these designs, the distance between each LED lamp bead 31 and the inner lens light-entering surface 21 can be increased, so that the light emitted by each LED lamp bead 31 can cover a larger area, and accordingly, the number of LED lamp beads 31 used can be reduced, reducing the manufacturing cost.

[0056] In this embodiment, the inner surface of the outer lampshade 5 is coated with an anti-fog coating, which can prevent the outer lampshade 5 from fogging and ensure the lighting effect of the front decorative lamp of the vehicle.

[0057] Furthermore, the outer surface of the outer lampshade 5 is cured by ultraviolet light, thereby improving the scratch resistance of the outer surface of the outer lampshade 5 .

[0058] In this embodiment, the lamp housing 4 is thinned to form a plurality of air vent sheet portions 43 that can be opened as air vents, so that the specific air vent sheet portions 43 to be pierced as air vents can be adjusted according to the actual fogging situation, thereby improving the versatility of the automobile front decorative lamp and adapting to different vehicle models.

[0059] In this embodiment, the inner side of the lamp housing 4 is concavely formed with a receiving groove 44, and the bottom of the receiving groove 44 is protruding to form a supporting rib 45 with a honeycomb structure, each PCBA 3 is supported on the supporting rib 45, and each first hot melt pin 41 is integrally formed at the bottom of the receiving groove 44. Through such a design, the supporting rib 45 with a honeycomb structure can effectively improve the structural strength of the lamp housing 4, and ensure the reliable installation of the PCBA 3, and at the same time, a gap is left between the PCBA 3 and the bottom of the receiving groove 44, which is beneficial to the heat dissipation of the PCBA 3, thereby further improving the stability and reliability of the use of the front decorative lamp of the car.

[0060] In this embodiment, there are at least two PCBA3, and the adjacent PCBA3 are electrically connected through the wire harness 6. In the prior art, the wire harness 6 needs to be fixed to the lamp housing 4 by a special clip. In this embodiment, the bottom of the accommodating groove 44 is integrally formed with a forced release buckle 46 corresponding to each wire harness 6. Each forced release buckle 46 is adjacent to the groove wall of the accommodating groove 44, and a wire harness clamping seam 47 adapted to the corresponding wire harness 6 is formed between the groove wall of the accommodating groove 44, and the middle part of each wire harness 6 is respectively clamped into the corresponding wire harness clamping seam 47. Specifically, the forced release buckle 46 has a certain elasticity, and the wire harness 6 is squeezed into the wire harness clamping seam 47 formed between the forced release buckle 46 and the groove wall of the accommodating groove 44, which is not only stable and reliable, but also reduces the use of parts, thereby further reducing the use cost.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A high-brightness automobile front decorative lamp with uniform lighting effect, comprising a lamp housing, an outer lampshade, an inner lampshade, at least one inner lens and at least one PCBA, wherein the lamp housing and the outer lampshade together form a component installation cavity for accommodating the inner lampshade, the inner lens and the PCBA, the inner lampshade is installed on the inner side of the outer lampshade and has at least one inner lampshade light-transmitting band made of a light-transmitting plastic material, each PCBA is installed on the inner side of the lamp housing, and each inner lens is located between the inner lampshade and each PCBA, characterized in that: The inner surface of the inner lens has an inner lens light-entering surface, the outer surface of the inner lens is composed of a plurality of Fresnel patterns, the Fresnel pattern is composed of a plurality of first strip optical teeth symmetrically arranged side by side on both sides of its center line, the inclination angle of each first strip optical tooth relative to the inner lens light-entering surface gradually increases with the increase of the distance from the center line of the Fresnel pattern, the outer surface of the inner lampshade light-transmissive band is provided with second strip optical teeth arranged side by side along its length direction, the second strip optical teeth on the same inner lampshade light-transmissive band together form a wavy or sawtooth structure, the side of each PCBA close to the inner lens is integrated with LED lamp beads corresponding to each Fresnel pattern, and the projection of each LED lamp bead on the corresponding Fresnel pattern is located at or close to the midpoint of the center line of the Fresnel pattern.

2. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 1, characterized in that: A plurality of first hot melt pins are integrally formed on the inner surface of the lamp housing, and hot melt pin through holes respectively matched with the corresponding first hot melt pins are opened on each PCBA, and first fusion holes respectively matched with the corresponding first hot melt pins are opened on each inner lens. Each first hot melt pin passes through the corresponding hot melt pin through hole and the first fusion hole in sequence and is fixed to the corresponding inner lens by hot melting, so that the lamp housing and each inner lens are clamped and fixed to each PCBA from both sides respectively; A plurality of second hot melt pins are integrally formed on the inner surface of the outer lampshade, and third hot melt pin through holes respectively matched with the corresponding second hot melt pins are opened on the inner lampshade, and each second hot melt pin passes through the corresponding third hot melt pin through hole and is fixed to the inner lampshade by hot melt, so that the outer lampshade and the inner lampshade are fixedly connected; The gap between the lamp housing and the outer lamp cover is sealed by vibration friction welding.

3. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 2, characterized in that: The inner side of the lamp housing is concavely formed with a receiving groove, the bottom of which is protruding with supporting ribs in a honeycomb structure, each PCBA is supported on the supporting ribs, and each first hot melt pin is integrally formed at the bottom of the receiving groove.

4. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 3, characterized in that: There are at least two PCBAs, and adjacent PCBAs are electrically connected through wiring harnesses. The bottom of the accommodating groove is integrally formed with forced release buckles corresponding to each wiring harness one by one. Each forced release buckle is adjacent to the groove wall of the accommodating groove, and a wiring harness clamping seam adapted to the corresponding wiring harness is formed between the groove wall of the accommodating groove, and the middle of each wiring harness is respectively clamped in the corresponding wiring harness clamping seam.

5. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 2, characterized in that: A plurality of inner lens mounting seats are integrally formed on each inner lens, each inner lens mounting seat is provided with the first welding hole, and the outer ends of each first hot-melt pin are fixed to the corresponding inner lens mounting seat by hot-melt.

6. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 5, characterized in that: The surface of the inner lens on one side close to the PCBA is the light-entering surface of the inner lens. The circumferential outer edge of the inner lens has a raised edge protruding toward the PCBA. Each inner lens mounting seat is integrally formed on the corresponding raised edge. The projection of the LED lamp beads integrated on each PCBA on the corresponding inner lens is located on the light-entering surface of the inner lens.

7. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 2, characterized in that: The circumferential outer edge of the lamp housing close to the outer lampshade is protruded to form a lamp housing sealing edge, and the surface of the lamp housing sealing edge close to the outer lampshade is a lamp housing sealing surface with a planar structure. The circumferential outer edge of the outer lampshade close to the lamp housing is protruded to form a lampshade sealing edge that is matched with the lamp housing sealing edge, and the surface of the lampshade sealing edge close to the lamp housing is a lampshade sealing surface with a planar structure. The lampshade sealing surface is fitted with the lamp housing sealing surface and is sealed by vibration friction welding.

8. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 7, characterized in that: The lamp housing sealing surface is concavely formed with a circle of sealing rib grooves, and the lamp shade sealing surface is convexly formed with a circle of sealing ribs matched with the sealing rib grooves, and the sealing ribs are embedded in the sealing rib grooves.

9. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 1, characterized in that: The inner lampshade has an inner lampshade support body made of light-shielding plastic material. The inner lampshade support body and each inner lampshade light-transmitting band are integrally formed using a two-color injection molding process. The inner lampshade light-transmitting bands all protrude outward from the inner lampshade support body, and at least some of the inner lampshade light-transmitting bands are distributed in a linear array.

10. The high-brightness automobile front decorative lamp with uniform lighting effect according to claim 1, characterized in that: The material of the inner lens is polymethyl methacrylate.

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