Vehicle rear position lamp assembly
By employing induced welding and a multi-surface design, the sealing and welding precision issues of vehicle rear position lights have been resolved, resulting in a vehicle rear position light assembly with high sealing performance, low cost, and long lifespan.
Patent Information
- Application Number
- CN202520143275.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The sealing problem of the rear position lights in existing vehicles is difficult to solve, and ultrasonic welding has problems such as inconsistent welding strength and difficulty in controlling precision, resulting in high production costs and high defect rates.
The lampshade and lamp holder are fixed by induced welding, and the combination of multiple light-emitting surface design and multiple positioning structure enhances sealing and assembly accuracy, and improves heat dissipation performance by using heat-conducting materials.
It improves the sealing and lifespan of the vehicle's rear position lights, reduces manufacturing difficulty and cost, enhances luminous efficiency and safety, and ensures stable component matching and reduced failure rate.
Smart Images
Figure CN223726134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a vehicle lamp, especially a vehicle rear position lamp assembly. BACKGROUND
[0002] The vehicle rear position lamp, also known as the wide indicator or rear position lamp, its main function is to indicate the existence and width of the vehicle. In the night or poor visibility conditions, the rear position lamp can make other road users clearly identify the vehicle through emitting stable light, so as to judge whether it is safe to pass or overtake.
[0003] In the assembly process of the vehicle rear position lamp, the sealing is a crucial link. If the sealing is poor, moisture, dust and other impurities may enter the inside of the lampshade, affecting the transmission effect of the light and the service life of the lamp. At present, the sealing problems existing in the assembly process of the vehicle rear position lamp mainly include the following aspects:
[0004] Improper selection of sealing glue: the performance of the sealing glue directly affects the sealing effect of the lamp. If the selected sealing glue is not resistant to high temperature, weather or has poor transparency, it may cause the sealing glue to fail, deform or affect the light transmission effect under high temperature.
[0005] Uneven coating of sealing glue: if the sealing glue is not coated evenly or there is a missing coating phenomenon during coating, it may cause poor sealing effect and water seepage, air leakage and other problems.
[0006] The gap between the lampshade and the vehicle body is too large: if the gap between the lampshade and the vehicle body is too large, even if the sealing glue is coated properly, it may not form an effective sealing effect due to the large gap.
[0007] Non-standard assembly process: if the operation is not standardized or the assembly is not carried out according to the standard process during the assembly process, it may cause problems such as damage of the sealing glue or deformation of the lampshade, thereby affecting the sealing effect.
[0008] In the prior art, welding is carried out by ultrasonic waves, however, due to the structure, the ultrasonic welding has the following disadvantages;
[0009] 1. Inconsistent welding strength: caused by the unevenness of the vehicle lamp plastic material, improper setting of welding parameters, unreasonable design of the mold and other factors. For example, different batches of plastic raw materials may have performance differences, affecting the welding strength.
[0010] 2. Deformation of the welding part: due to the local high temperature and pressure generated during the ultrasonic welding process, the plastic part may deform, and if the welding parameter is too high or the mold and the workpiece do not fit well, the deformation problem is more likely to occur.
[0011] 3. Welding precision is difficult to control, vehicle lights usually have complex shape and size requirements, and the precision of ultrasonic welding is affected by various factors such as mold precision, equipment stability, welding parameters, etc.
[0012] In summary, the assembly process of the rear position in the prior art is difficult, and there is an uncontrollable defect rate, especially the sealing problem, which increases the production cost. Practical new type content
[0013] The technical problem to be solved
[0014] The technical problem to be solved by the utility model is to provide a vehicle rear position lamp assembly which is compact in structure, convenient to assemble, high in precision, simple in manufacturing process and good in sealing.
[0015] Technical scheme for solving the problem
[0016] The utility model provides a vehicle rear position lamp assembly, including strip shape's casing and install light source module in the casing, the casing includes the lamp holder 1 of front end open mouth and the lamp shade 5 of open mouth end fixed in the lamp holder 1 through induction welding, the lamp shade 5 and the lamp holder 1 between form sealed installation cavity 10, the light source module includes inner lamp holder 3, substrate 2 and light guide plate 4, the inner lamp holder 3 is fixed in the lamp holder 1, and has the light source cavity 30 of front end open mouth, the substrate 2 is installed in the end of the inner lamp holder 3, and a plurality of LED lamp beads towards the open mouth end of the light source cavity 30 are equipped on the substrate 2, the light guide plate 4 is installed in the open mouth end of the light source cavity 30, and it has the light emitting surface that projects outward and can increase the light emitting angle.
[0017] Further, the open mouth end of the lamp holder 1 is provided with a ring-shaped slot 110 along the contour direction, the edge of the lamp shade 5 is provided with a ring-shaped plug-in part 511 which can be inserted into the ring-shaped slot 110, and the ring-shaped plug-in part 511 is fixed in the ring-shaped slot 110 by induction welding and realizes sealing.
[0018] Further, the light guide plate 4 has a first light emitting surface 41, and the edge of the first light emitting surface 41 is inclined and bent backward to form a second light emitting surface 42.
[0019] Further, the included angle between the second light emitting surface 42 and the first light emitting surface 41 is greater than or equal to 30 degrees and less than or equal to 45 degrees.
[0020] Further, the included angle between the second light emitting surface I 42a at the upper end and the first light emitting surface 41 is smaller than the included angle between the second light emitting surface II 42b at the lower end and the first light emitting surface 41.
[0021] Further, the open end of the lamp holder 1 forms a limiting part, the limiting part includes an inner limiting part 111 arranged inside the annular slot 110 and an outer limiting part 112 arranged outside the annular slot 110, the outer wall of the inner lamp holder 3 is provided with a first limiting part 33 in contact with the inner limiting part 111 and achieving axial limiting, and the outer wall of the lamp cover 5 is provided with a second limiting part 52 in contact with the outer limiting part 112 and achieving axial limiting.
[0022] Further, the substrate 2 is installed at the rear end of the inner lamp holder 3, and the end of the inner lamp holder 3 is provided with a light-transmitting window 301 corresponding to the LED lamp bead.
[0023] Further, the inner lamp holder 3 is made of heat-conducting material.
[0024] Further, there is a gap between the outer wall of the inner lamp holder 3 and the inner wall of the mounting cavity.
[0025] Further, the outer wall of the lamp holder 1 is provided with an annular protrusion, the end of the annular protrusion is bent forward and forms the outer limiting part 112.
[0026] Further, the length-width ratio of the shell is greater than or equal to 10 and less than or equal to 20.
[0027] Beneficial effects
[0028] The utility model vehicle rear position lamp assembly, lamp holder and lamp cover adopt inductive welding, can adapt to various complex shape's welding, has reduced manufacturing process difficulty and cost, and overall sealing is high, has promoted vehicle rear position lamp's use property and reliability, long life, adopts many light emitting surface design, has increased light emitting area, and can reduce light loss, thereby improves luminous efficiency, has improved the safety of vehicle driving, adopts multiple positioning structure design, has improved assembly efficiency and assembly accuracy, ensures that each component is stably matched, reduces failure rate, and long service life, sets up heat radiation structure, good heat dissipation performance ensures the stable work of LED lamp bead, prolongs the service life of lamps and lanterns, the utility model vehicle rear position lamp assembly, compact structure, convenient assembly, high precision, simple manufacturing process, low manufacturing cost, good sealing and long service life. ACCREDITATION OF DRAWINGS
[0029] Figure 1 It is structure schematic diagram of the utility model vehicle rear position lamp assembly;
[0030] Figure 2 It is another angle structure schematic diagram of the utility model vehicle rear position lamp assembly;
[0031] Figure 3 It is explosion structure schematic diagram of the utility model vehicle rear position lamp assembly;
[0032] Figure 4 It is the longitudinal section view of the vehicle rear position lamp assembly of the utility model;
[0033] Figure 5 It is the longitudinal section view of the vehicle rear position lamp assembly of the utility model; Figure 4 It is the enlarged view of B part in the middle;
[0034] Figure 6 It is the transverse section view of the vehicle rear position lamp assembly of the utility model;
[0035] Figure 7 It is the transverse section view of the vehicle rear position lamp assembly of the utility model; Figure 6 It is the enlarged view of C part in the middle;
[0036] Figure 8 It is the section view of the lampshade of the vehicle rear position lamp assembly of the utility model;
[0037] Figure 9 It is the section view of the lampshade of the vehicle rear position lamp assembly of the utility model; Figure 8 It is the enlarged view of D part in the middle;
[0038] Figure 10 It is the section view of the inner lamp holder of the vehicle rear position lamp assembly of the utility model;
[0039] Figure 11 It is the section view of the inner lamp holder of the vehicle rear position lamp assembly of the utility model; Figure 10 It is the enlarged view of E part in the middle.
[0040] Figure 12 It is the section view of the lamp holder of the vehicle rear position lamp assembly of the utility model;
[0041] Figure 13 It is the section view of the lamp holder of the vehicle rear position lamp assembly of the utility model; Figure 12 It is the enlarged view of E part in the middle. DETAILED DESCRIPTION
[0042] The embodiment of the utility model is described in detail below with reference to the drawings.
[0043] Referring to Figures 1-13 The utility model provides a kind of vehicle rear position lamp assembly, its whole is strip structure, i.e. length direction is much greater than its width direction, in this embodiment, the length-width ratio (length and width ratio) of the rear lamp assembly is greater than or equal to 10 and less than or equal to 20, forms strip structure, the strip structure design makes that lamp body has greater luminous area, to provide wider illumination range in night or insufficient light environment, simultaneously, can increase overall aesthetic degree.
[0044] Specifically, it includes a strip-shaped shell, the shell includes a strip-shaped lamp holder 1 and a strip-shaped lampshade 5, wherein the front end of the shell 1 is open, the rear end of the lampshade 5 is open, and the open end of the lampshade 5 is fixed on the open end of the lamp holder 1 by induction welding, so that a sealed mounting cavity 10 is formed between the lampshade 5 and the lamp holder 1, and a light source module is mounted in the sealed cavity 10, the light source module includes an inner lamp holder 3, a substrate 2 and a light guide plate 4, which are also strip-shaped, wherein the inner lamp holder 3 is fixed in the lamp holder 1, the inner lamp holder 3 has a light source cavity 30 with an open front end, the substrate 2 is mounted at the end of the inner lamp holder 3, a plurality of LED lamp beads are provided on the substrate 2, the LED lamp beads face the light source cavity 30 as light sources, and the plurality of LED lamp beads are equidistantly arranged along the length direction; at the same time, the light guide plate 4 is mounted at the open end of the light source cavity 30, the light guide plate 4 has an outwardly protruding light exit surface, thereby increasing the light exit angle; specifically, the light guide plate 4 has a first light exit surface 41, which is the front end surface of the light guide plate 4, and is inclined to the thickness direction of the shell, the edge of the first light exit surface 41 is bent backward to form a second light exit surface 42, the first light exit surface 41 and the second light exit surface 42 form an outwardly protruding structure, which is used to enhance the diffusion angle of the light beam, so that the light is more uniformly distributed behind the vehicle, thereby improving the illumination efficiency and range; in the embodiment, the included angle between the second light exit surface 42 and the first light exit surface 41 is greater than or equal to 30 degrees and less than or equal to 45 degrees, the included angle between the second light exit surface I 42a at the upper end and the first light exit surface 41 is less than the included angle between the second light exit surface II 42b at the lower end and the first light exit surface 41, that is, taking the horizontal direction as the reference, the second light exit surface at the upper end of the first light exit surface is the second light exit surface I 42a, the second light exit surface at the lower end of the first light exit surface is the second light exit surface II 42b, and the included angle between the second light exit surface I 42a and the first light exit surface is less than the included angle between the second light exit surface II 42b and the first light exit surface 41, that is, the second light exit surface II 42b has a larger inclination angle, which can have a better light guide effect. In addition, the light reflection and refraction effects can be further optimized by adjusting the material and surface treatment of the light guide plate 4 to reduce glare and improve visibility, and avoid dazzling.
[0045] An installation clamping groove 32 is formed at the end of the open end of the light source cavity 30 in the contour direction, the inner side of the installation clamping groove 32 communicates with the light source cavity 30, forming a stepped structure, which is used to install the light guide plate 4, and can improve the installation efficiency and precision.
[0046] In order to improve the assembly efficiency and precision, and facilitate the welding operation, the lamp holder 1 is provided with an annular slot 110 at the open end, the annular slot is arranged along the contour direction of the lamp holder 1, the opening direction of the annular slot 110 is arranged forward, and meanwhile, the lampshade 5 is provided with an annular plug-in part 511 at the rear end edge, the annular plug-in part 511 can be inserted into the annular slot 110, the quick and accurate butt joint of the two is realized, and the annular plug-in part 511 is fixed in the annular slot 110 through induction welding, thereby realizing the fixed connection and sealing of the two.
[0047] In the lamp holder 1, a limiting part is formed at the open end, the limiting part includes an inner limiting part 111 arranged inside the annular slot 110 and an outer limiting part 112 arranged outside the annular slot 110, the inner and outer limiting parts are respectively used for limiting the inner lamp holder and the lamp holder, meanwhile, the outer wall of the inner lamp holder 3 is provided with an annular first limiting part 33, the first limiting part 33 is in contact with the end face of the inner limiting part 111 and realizes axial limiting, and the outer wall of the lampshade 5 is provided with an annular second limiting part 52, the second limiting part 52 is in contact with the end face of the outer limiting part 112, thereby realizing axial limiting, through the above structure, the quick and accurate positioning between the components is realized, the assembly efficiency and assembly precision are improved; in the embodiment, the outer wall of the lamp holder 1 is provided with an annular protrusion, the annular protrusion is arranged at the position close to the front end, the end of the annular protrusion is bent forward and forms the outer limiting part 112, and the inner side of the outer limiting part 112 has a gap with the outer wall of the lamp holder 1, thereby forming the annular slot 110.
[0048] The substrate 2 is strip-shaped, in the embodiment, since the overall length-width ratio is relatively large, the substrate 2 is two or more, which is convenient for assembly and reduces the manufacturing cost, the substrate 2 is installed at the rear end of the inner lamp holder 3, meanwhile, the end of the inner lamp holder 3 is provided with a light-transmitting window 301 corresponding to the LED lamp bead, which can make the light emitted by the LED lamp bead fully enter the light source cavity; in order to further enhance the heat dissipation effect, in the embodiment, the inner lamp holder 3 is made of heat-conducting material, for example, made of aluminum, and meanwhile, in the application, there is a gap between the outer wall of the inner lamp holder 3 and the inner wall of the mounting cavity, which improves the assembly efficiency and precision.
[0049] In the application, the positioning assembly is arranged between the rear end of the inner lamp holder 3 and the rear end of the mounting cavity of the lamp holder, the positioning assembly includes the positioning protrusions or the positioning grooves matched with each other, which realizes the quick radial positioning of the inner lamp holder 3 in the lamp holder 1; meanwhile, a plurality of mounting columns 34 are arranged at the rear end of the inner lamp holder 3, screw holes are arranged at the ends of the mounting columns, and meanwhile, recessed holes corresponding to the mounting columns 34 are arranged at the rear end of the mounting cavity, which can make the mounting columns just be inserted, and meanwhile, center holes are arranged at the ends of the recessed holes, which are used for installing bolts, thereby realizing the fixing of the inner lamp holder 3 and the lamp holder 1. Through the design, the stable installation of the inner lamp holder 3 is ensured.
[0050] The utility model discloses a vehicle rear position lamp assembly, the lamp holder and lampshade adopt inductive welding, reduced manufacturing process difficulty and cost, and the overall sealing is high, has improved the use performance and reliability of vehicle rear position lamp, long life, adopt the design of multiple light emitting surface, increased light emitting area, and can reduce the light loss, thereby improve luminous efficiency, improved the safety of vehicle driving, adopt multiple positioning structure design, improved assembly efficiency and assembly accuracy, ensure that each component stable cooperation, reduce the failure rate, long service life, set up the heat dissipation structure, and the heat dissipation performance is good, ensure the stable work of LED lamp pearl, prolong the service life of lamp, the utility model discloses a vehicle rear position lamp assembly, compact structure, convenient assembly, high precision, simple manufacturing process, low manufacturing cost, good sealing and long service life.
[0051] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the technical principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the utility model.
Claims
1. A vehicle rear position lamp assembly, characterized by: The shell includes a bar-shaped shell and a light source module installed in the shell, the shell includes a lamp holder with an open front end and a lampshade fixed to the open end of the lamp holder by induction welding, a sealed mounting cavity is formed between the lampshade and the lamp holder, the light source module includes an inner lamp holder, a substrate and a light guide plate, the inner lamp holder is fixed in the lamp holder and has a light source cavity with an open front end, the substrate is installed at the end of the inner lamp holder, and a plurality of LED lamp beads are arranged on the substrate and face the open end of the light source cavity; the light guide plate is installed at the open end of the light source cavity and has an outwardly protruding light emitting surface and can increase the light emitting angle.
2. The vehicle rear position lamp assembly of claim 1, wherein: The open end of the lamp holder is provided with a ring-shaped slot in the profile direction, the edge of the lampshade is provided with a ring-shaped insertion part which can be inserted into the ring-shaped slot, and the ring-shaped insertion part is fixed in the ring-shaped slot by induction welding and achieves sealing.
3. The vehicle rear position lamp assembly of claim 1, wherein: The light guide plate has a first light emitting surface, the edge of the first light emitting surface is bent backward and forms a second light emitting surface.
4. The vehicle rear position lamp assembly of claim 3, wherein: The included angle between the second light emitting surface and the first light emitting surface is greater than or equal to 30 degrees and less than or equal to 45 degrees.
5. The vehicle rear position lamp assembly of claim 3, wherein: The included angle between the second light emitting surface at the upper end and the first light emitting surface is smaller than the included angle between the second light emitting surface at the lower end and the first light emitting surface.
6. The vehicle rear position lamp assembly of claim 2, wherein: The open end of the lamp holder forms a limiting part, the limiting part includes an inner limiting part arranged inside the ring-shaped slot and an outer limiting part arranged outside the ring-shaped slot, the outer wall of the inner lamp holder is provided with a first limiting part which contacts the inner limiting part and achieves axial limiting, and the outer wall of the lampshade is provided with a second limiting part which contacts the outer limiting part and achieves axial limiting.
7. The vehicle rear position lamp assembly of claim 1, wherein: The substrate is installed at the rear end of the inner lamp holder, and the end of the inner lamp holder is provided with a light-transmitting window corresponding to the LED lamp beads.
8. The vehicle rear position lamp assembly of claim 1, wherein: There is a gap between the outer wall of the inner lamp holder and the inner wall of the mounting cavity.
9. The vehicle rear position lamp assembly of claim 6, wherein: The outer wall of the lamp holder is provided with a ring-shaped protrusion, the end of the ring-shaped protrusion is bent forward and forms the outer limiting part.
10. The vehicle rear position lamp assembly of any one of claims 1-9, wherein: The length-width ratio of the shell is greater than or equal to 10 and less than or equal to 20.