Weather-proof mounting structure of automobile front decorative lamp

Abstract

The utility model discloses an automobile front decorative lamp weather-proof installation structure which comprises a lamp shell, an outer lampshade, an inner lampshade, at least one inner lens and at least one PCBA, the lamp shell and the outer lampshade define a component installation cavity used for containing the inner lampshade, the inner lens and the PCBA, and a gap between the lamp shell and the outer lampshade is sealed through vibration friction welding. By the adoption of the weather-proof installation structure of the automobile front decorative lamp, the lamp shell, the inner lenses and the PCBA are fixed in place at a time through hot melting, the outer lampshade and the inner lampshade are also fixed in place at a time through hot melting, the stability and reliability of long-term use can be guaranteed, the number of parts is small, the assembly efficiency is high, and the manufacturing cost is low; the two parts which are fixed through hot melting are assembled and then sealed through vibration friction welding, the problems of glue failure and water leakage are not prone to occurring after long-term use, and the weather resistance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a weather-resistant installation structure for a front decorative lamp of an automobile. Background Art

[0002] Some countries and regions allow the installation of front decorative lights on the front of the car to improve the overall aesthetics of the car. Since the front decorative lights are exposed to the outside of the car and are used in a relatively harsh environment, the internal parts are usually not assembled by snap-fitting, but are instead assembled by screw locking to ensure long-term stability and reliability, resulting in a large number of parts, low assembly efficiency, and relatively high manufacturing costs; in addition, the gap between the lamp housing and the outer lampshade is currently sealed by gluing, which has poor weather resistance and is prone to debonding and water leakage after long-term use.

[0003] Solving the above problems has become a top priority. Utility Model Content

[0004] In order to solve the technical problems that the internal parts of the existing automobile front decorative lights are locked by screws, resulting in a large number of parts, low assembly efficiency, relatively high manufacturing cost, and the gaps between the external parts are sealed by gluing, which has poor weather resistance, the utility model provides a weather-resistant installation structure for automobile front decorative lights.

[0005] The technical solution is as follows:

[0006] The first aspect of the present application relates to a weather-resistant mounting structure of a front decorative lamp of an automobile, 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 mounting cavity for accommodating the inner lampshade, the inner lens and the PCBA, wherein a plurality of first hot melt pins are integrally formed on the inner surface of the lamp housing, and each PCBA is provided with a hot melt pin through hole respectively matched with the corresponding first hot melt pin, and each inner lens is provided with a first welding hole respectively matched with the corresponding first hot melt pin, and each first hot melt pin is respectively passed through the corresponding hot melt pin through hole and the first welding hole in sequence and then 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;

[0007] 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;

[0008] The gap between the lamp housing and the outer lamp cover is sealed by vibration friction welding.

[0009] By adopting the above weather-resistant installation structure of the front decorative lamp of the automobile, the lamp housing, each inner lens and each PCBA are fixed in place at one time by hot melting, and the outer lampshade and the inner lampshade are also fixed in place at one time by hot melting, which can not only ensure the stability and reliability of long-term use, but also has a small number of parts, high assembly efficiency and low manufacturing cost; after the two parts fixed by hot melting are assembled, they are 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] In some embodiments, the inner surface of the outer lamp cover is coated with an anti-fog coating.

[0015] In some embodiments, the lamp housing is thinned to form a plurality of air-permeable thin plate portions that can be opened as air-permeable holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the front decorative lamp of an automobile;

[0017] Figure 2 It is a schematic diagram of the matching relationship between the lamp housing, each inner lens and each PCBA;

[0018] Figure 3 is a schematic diagram of the structure of the lamp housing;

[0019] Figure 4 It is a schematic diagram of the structure of PCBA;

[0020] Figure 5 is a schematic diagram of the structure of the inner lens;

[0021] Figure 6 It is a schematic diagram of the matching relationship between the outer lampshade and the inner lampshade;

[0022] Figure 7 is a schematic diagram of the structure of the outer lampshade;

[0023] Figure 8 It is a schematic diagram of the structure of the inner lampshade. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with embodiments and drawings.

[0025] like Figure 1-Figure 8 As shown, a weather-resistant mounting structure of a front decorative lamp of an automobile 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 mounting cavity, and the inner lampshade 1, each inner lens 2 and each PCBA 3 are all located in the component mounting cavity.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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 .

[0036] 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.

[0037] In this embodiment, the inner lampshade 1 has at least one inner lampshade light-transmitting band 11 made of a light-transmitting plastic material, and each inner lens 2 is located at the inner side of the corresponding inner lampshade light-transmitting band 11, that is, the light emitted by each inner lens 2 enters the inner lampshade 1 and then passes through each inner lampshade light-transmitting band 11. At the same time, the inner lampshade 1 has an inner lampshade support body 12 made of a light-shielding plastic material, and the inner lampshade support body 12 and each inner lampshade light-transmitting band 11 are integrally formed by a two-color injection molding process, which not only has a high structural strength, but also can highlight the visual effect of each inner lampshade light-transmitting band 11, and can also shield the internal components.

[0038] 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 .

[0039] 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 weather-resistant mounting structure for a front decorative lamp of an automobile, 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 mounting cavity for accommodating the inner lampshade, the inner lens and the PCBA, 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.

2. The weather-resistant mounting structure of the front decorative lamp of an automobile according to claim 1, 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.

3. The weather-resistant mounting structure of the automobile front decorative lamp according to claim 2, 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.

4. The weather-resistant mounting structure of the front decorative lamp of an automobile according to claim 1, 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.

5. The weather-resistant mounting structure of the front decorative lamp of an automobile according to claim 4, 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.

6. The weather-resistant mounting structure of the automobile front decorative lamp according to claim 1, characterized in that: The inner surface of the outer lamp cover is coated with an anti-fog coating.

7. The weather-resistant mounting structure of the front decorative lamp of an automobile according to claim 1 or 6, characterized in that: The lamp housing is thinned to form a plurality of air-permeable thin plate portions which can be opened as air-permeable holes.

Images