Assembling shell for car lamp

Abstract

The utility model relates to the technical field of structure assembly, and provides an assembly shell for a car lamp. The bottom shell is provided with a sealing groove for assembling the car lampshade; and the sealing groove can be filled with sealant to form a sealing ring for sealing the sealing groove, so that the automobile lampshade is fixedly assembled on the bottom shell. According to the utility model, the sealing groove is filled with the sealant to form the sealing ring for sealing the sealing groove, so that the assembly defect caused by the traditional ultrasonic welding technology is avoided, the assembly quality of the assembly shell in the assembly process is improved, the reject ratio of products is reduced, and a better production effect is brought to users.

Description

Technical Field

[0001] The utility model relates to the technical field of structural assembly, in particular to an assembly shell for a vehicle lamp. Background Art

[0002] In the manufacturing process of electric two-wheeled vehicle headlights, the assembly quality of the headlight decorative cover and the bottom shell directly affects the waterproof performance and service life of the product.

[0003] Traditional assembly structures mostly use ultrasonic welding technology, which aims to weld the contact surface of the decorative cover and the bottom shell together through the heat generated by high-frequency vibration to achieve a waterproof effect. However, in the actual production process, due to the influence of various factors such as material properties, welding parameters and operating environment, ultrasonic welding technology often cannot ensure the consistency of assembly quality, resulting in a high defective rate of assembled shells. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an assembly shell for a vehicle lamp which improves assembly quality and reduces product defect rate.

[0005] In order to solve the above problems, the utility model provides the following technical solutions:

[0006] An assembly shell for a vehicle lamp, comprising:

[0007] Headlight cover;

[0008] A bottom shell, provided with a sealing groove for assembling the lamp cover;

[0009] The sealing groove may be filled with sealant to form a sealing ring to seal the sealing groove, so that the vehicle lamp cover is fixedly assembled on the bottom shell.

[0010] In one embodiment, a sealing ring is further included, and the sealing ring is assembled in the sealing groove.

[0011] In one embodiment, the sealant is hot melt adhesive, and the sealing ring is a hot melt adhesive ring.

[0012] In one embodiment, a positioning groove is provided in the sealing groove, and a positioning piece is provided on a side of the vehicle lamp cover facing the bottom shell, and the positioning piece is assembled in the positioning groove.

[0013] In one embodiment, the positioning member includes a positioning side plate and a positioning bottom plate, the bottom shell forms a first side plate on at least one side of the positioning groove, and forms a first bottom plate at the bottom of the positioning groove;

[0014] The positioning side plate may abut against the first side plate portion, and the positioning bottom plate may abut against the first bottom plate portion.

[0015] In one embodiment, the positioning side plate is provided with a first limiting convex strip, and the positioning bottom plate is provided with a second limiting convex strip;

[0016] The first limiting convex strip abuts against the first side plate after the positioning member is installed in the positioning groove, and the second limiting convex strip abuts against the first bottom plate after the positioning member is installed in the positioning groove.

[0017] In one embodiment, the positioning bottom plate is arranged along a first direction, and the positioning side plate is arranged along a second direction;

[0018] The first direction and the second direction are perpendicular to each other.

[0019] In one embodiment, the first limiting convex strip is arranged along the third direction, and the second limiting convex strip is arranged along the second direction;

[0020] The third direction is perpendicular to the first direction and the second direction.

[0021] In one embodiment, a third limiting convex strip arranged along the first direction or the second direction is further provided on the side of the positioning side plate away from the first limiting convex strip.

[0022] In one embodiment, the first limiting convex strip, the second limiting convex strip and the third limiting convex strip are configured as rectangular strips or arc strips.

[0023] The beneficial effects of the utility model are as follows: the sealing groove is sealed by forming a sealing ring by filling the sealing groove with sealant, thereby avoiding the assembly defects caused by traditional ultrasonic welding technology, improving the assembly quality of the assembly shell during the assembly process, thereby reducing the product defective rate and bringing better production effects to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of one embodiment of an assembly housing for a vehicle lamp of the utility model;

[0025] Figure 2 This is a schematic assembly diagram of one embodiment of an assembly housing for a vehicle lamp of the utility model;

[0026] Figure 3 for Figure 1 A schematic structural diagram of one embodiment of a vehicle lamp cover;

[0027] Figure 4 for Figure 1 A schematic structural diagram of one embodiment of the mid-bottom shell;

[0028] Figure 5 This is an exploded view of one embodiment of an assembly housing for a vehicle lamp of the utility model;

[0029] Figure 6 This is a cross-sectional view of one embodiment of an assembly housing for a vehicle lamp of the utility model;

[0030] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0031] Reference numerals:

[0032] 100, assembly shell; 110, bottom shell; 11a, positioning groove; 111, headlight cover; 121, positioning piece; 112, hot melt adhesive ring; 11b, sealing groove; 131, positioning side plate; 132, positioning bottom plate; 133, first side plate; 134, first bottom plate; 141, first limiting convex strip; 142, second limiting convex strip; 143, third limiting convex strip. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] For the convenience of describing the first direction, the second direction and the third direction in the embodiment of the present application, the first direction is the left-right direction in the drawings, the second direction is the up-down direction in the drawings, and the third direction is the front-back direction in the drawings. The x-axis arrow direction is referred to as the "right" direction in the following text, the y-axis arrow direction is referred to as the "up" direction in the following text, and the z-axis arrow direction is referred to as the "front" direction in the following text, which is not limited to the actual application of the present application.

[0036] Please refer to Figure 1-7As shown, the present embodiment provides an assembly shell 100 for a vehicle lamp, which is mainly used for loading vehicle lamps and circuit boards of electric two-wheeled vehicles, and comprises: a bottom shell 110 and a vehicle lamp cover 111 and a sealant for fixing the bottom shell 110 and the vehicle lamp cover 111, and the bottom shell is provided with a sealing groove for assembling the vehicle lamp cover; the sealant in the present embodiment is selected from hot melt adhesive, and during the implementation process, the vehicle lamp cover 111 is first assembled in the sealing groove 11b of the bottom shell 110, and after the above-mentioned assembly operation is completed, the sealing groove 11b is filled with hot melt adhesive, and it can be understood that the manufacturer uses hot melt adhesive to fill it during the assembly process, and when the hot melt adhesive fills the sealing groove 11b and gradually cools and solidifies, a hot melt adhesive ring 112 is formed, so that after the assembly of the vehicle lamp cover 111 and the bottom shell 110 is completed, the hot melt adhesive ring 112 can seal the sealing groove 11b, and the vehicle lamp cover 111 can be fixedly assembled to the bottom shell 110.

[0037] Hot melt adhesive (English name: Hot Glue) is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. The basic resin of hot melt adhesive is ethylene and vinyl acetate copolymerized under high temperature and high pressure, that is, EVA resin. This resin is the main component of hot melt adhesive. The proportion and quality of the basic resin determine the basic properties of hot melt adhesive (such as the adhesive's bonding ability, melting temperature and bonding strength). Generally, VA content of 18-33 and melt index (MI) of 6-800 are selected. The lower the VA content, the higher the crystallinity, the greater the hardness. Under the same conditions, the larger the VA content, the lower the crystallinity, the greater the elasticity. The selection of EVA melt index is also very important. The smaller the melt index, the worse the fluidity, the greater the strength, the higher the melting temperature, and the poorer the wetting and permeability of the adherend. On the contrary, if the melt index is too large, the melting temperature of the adhesive is low, the fluidity is good, but the bonding strength is reduced. The selection of the auxiliary agent should be one with a proper ratio of ethylene to vinyl acetate; optionally, in other embodiments, the hot melt adhesive can be replaced with other sealants, which can be adjusted according to user products and actual needs and are not limited here.

[0038] Preferably, in another embodiment, the assembly shell for the vehicle lamp may also be directly provided with a sealing ring, namely a hot-melt adhesive ring, and then the hot-melt adhesive ring is inserted into the sealing groove for sealing.

[0039] Preferably, a positioning groove 11 a is provided on the bottom shell 110 , and a positioning member 121 is provided on a side of the lamp cover 111 facing the bottom shell 110 , and the positioning member 121 is assembled in the positioning groove 11 a .

[0040] Specifically, in this embodiment, eight positioning members 121 are provided, and the eight positioning members 121 are all provided on the edge of the lamp cover 111 facing the bottom shell 110, and any two adjacent positioning members 121 are provided at intervals. The purpose of providing multiple positioning members 121 on the edge of the lamp cover 111 facing the bottom shell 110 is to enable different sides of the bottom shell 110 to be installed after positioning, and the installation positioning effect of the bottom shell 110 is higher by arranging any two adjacent positioning members 121 at intervals, so as to avoid the problem of uneven positioning caused by excessive concentration of positioning on one side; further, the bottom shell 110 is provided with a sealing groove 1 1b, the sealing groove 11b is arranged on the peripheral side of the bottom shell 110, that is, the peripheral side of the bottom shell 110 extends outward to form a groove wall of the sealing groove 11b, so that the positioning groove 11a is arranged in the sealing groove 11b. It can be understood that the purpose of setting the sealing groove 11b is to enable the hot melt adhesive to fix the relative position of the positioning piece 121 and the positioning groove 11a by injecting the hot melt adhesive into the sealing groove 11b, and then the hot melt adhesive flows in the sealing groove 11b as a liquid and slowly flows into the positioning groove 11a and covers the positioning piece 121, thereby fixing the relative position between the positioning piece 121 and the positioning groove 11a.

[0041] Preferably, the positioning member 121 includes a positioning side plate 131 and a positioning bottom plate 132, and the bottom shell 110 forms a first side plate 133 on one side of the positioning groove 11a, and forms a first bottom plate 134 at the bottom of the positioning groove 11a; wherein the positioning side plate 131 can be partially abutted against the first side plate 133, and the positioning bottom plate 132 can be partially abutted against the first bottom plate 134; further, a first limiting convex strip 141 is provided on the positioning side plate 131, and a second limiting convex strip 142 is provided on the positioning bottom plate 132; the first limiting convex strip 141 abuts against the first side plate 133 after the positioning member 121 is installed in the positioning groove 11a so that the positioning side plate 131 is partially abutted against the first side plate 133, and the second limiting convex strip 142 abuts against the first bottom plate 134 after the positioning member 121 is installed in the positioning groove 11a so that the positioning bottom plate 132 is partially abutted against the first bottom plate 134.

[0042] It can be understood that when the positioning member 121 is inserted into the positioning groove 11a, the positioning side plate 131 of the positioning member 121 will abut against the first side plate 133 of the positioning groove 11a through the first limiting convex strip 141, and because the positioning member 121 is provided in plurality, and the plurality of positioning members 121 are provided along the peripheral side of the vehicle lamp cover 111, when the positioning side plates 131 of the plurality of positioning members are all in abutment with the first side plates 133 of the corresponding positioning groove 11a, the vehicle lamp cover 111 will form a mutually engaging relationship with the bottom shell 110, so that the position of the vehicle lamp cover 111 relative to the bottom shell 110 in the front-rear and left-right directions is Fixed. Under the limitation of this limiting relationship, the processing personnel can more easily assemble the headlight cover 111 and the bottom shell 110, that is, the positioning bottom plate 132 of each positioning member 121 gradually approaches the first bottom plate 134 of the positioning groove 11a as the headlight cover 111 moves downward until it abuts against the first bottom plate 134. Therefore, when the hot melt adhesive is filled into the sealing groove 11b, the positional relationship between the headlight cover 111 and the bottom shell 110 is kept relatively fixed, avoiding the negative impact caused by the unstable structure when the hot melt adhesive is cooled to form the hot melt adhesive ring 112, which is beneficial to ensure the condensation effect and improve the installation quality.

[0043] In some embodiments, the partial abutment between the positioning side plate 131 and the first side plate 133 can be set as line contact, while in other embodiments, the partial abutment between the positioning side plate 131 and the first side plate 133 can also be set as surface contact; similarly, in some embodiments, the partial abutment between the positioning bottom plate 132 and the first bottom plate 134 can be set as line contact, while in other embodiments, the partial abutment between the positioning bottom plate 132 and the first bottom plate 134 can also be set as surface contact; and whether the partial abutment between the positioning side plate 131 and the first side plate 133, and the partial abutment between the positioning bottom plate 132 and the first bottom plate 134 is line contact or surface contact depends on the first limiting convex strip 141 and the second limiting convex strip 141. The shape and structure of the limiting ridge 142, in this embodiment, the first limiting ridge 141 and the second limiting ridge 142 are set as rectangular strips or arc strips; it can be understood that when the first limiting ridge 141 and the second limiting ridge 142 are both set as rectangular strips, since the rectangle has faces facing different directions, the positioning side plate 131 forms a surface contact with the first side plate 133 through the side of the first limiting ridge 141 facing the first side plate 133, and the positioning bottom plate 132 forms a surface contact with the first bottom plate 134 through the side of the second limiting ridge 142 facing the first bottom plate 134; and when the first limiting ridge 141 and the second limiting ridge 142 are both set as arc strips, since The surface of the arc strip facing the first side plate 133 and the first bottom plate 134 is an arc surface, so it can be understood that the positioning side plate 131 forms a line contact with the first side plate 133 through the first limiting convex strip 141 facing the first side plate 133, and the positioning bottom plate 132 forms a line contact with the first bottom plate 134 through the second limiting convex strip 142 facing the first bottom plate 134; further, in this embodiment, the first limiting convex strip 141 and the second limiting convex strip 142 are set as arc strips. Since the first limiting convex strip 141 and the second limiting convex strip 142 of the arc strip can form a positioning side plate 131 and the first side plate 133, and a positioning bottom plate 132 and the first bottom plate 1 34, so that the hot melt adhesive can flow more easily between the first side plate 133 and the positioning side plate 131, and between the positioning bottom plate 132 and the first bottom plate 134, further making the connection between the positioning member 121 and the positioning groove 11a more firmly, and the number of the first limiting ridges 141 is set to one, the number of the second limiting ridges 142 is set to two, and the two second limiting ridges 142 are arranged on both sides of the first bottom plate 134 and are arranged at intervals; in other embodiments, the first limiting ridges 141 and the second limiting ridges 142 can also be set to other numbers, and the numbers of the first limiting ridges 141 and the second limiting ridges 142 are no more than two.

[0044] Preferably, a third limiting ridge 143 is further provided on the side of the positioning side plate 131 away from the first limiting ridge 141. The purpose of providing the third limiting ridge 143 is to increase the contact area between the side of the positioning side plate 131 away from the first limiting ridge 141 and the hot melt adhesive, thereby making the hot melt adhesive more adherent to the positioning side plate 131 on that side, further enhancing the fixing strength of the hot melt adhesive ring 112 to the positioning member 121 and the positioning groove 11a.

[0045] Preferably, Figure 3 As shown, taking one of the positioning members 121 as an example, the positioning base plate 132 of the positioning member 121 is arranged along the first direction and is perpendicular to the positioning side plate 131 arranged along the second direction, forming an "L"-shaped positioning member 121 structure; further, in this embodiment, the first limiting ridge 141 of the positioning member 121 is arranged along the third direction, the second limiting ridge 142 is arranged along the second direction, and the third limiting ridge 143 is arranged along the second direction. The purpose of this structure is to avoid direct contact between the positioning side plate 131 and the first side plate 133, and direct contact between the positioning base plate 132 and the first base plate 134, thereby causing the hot melt adhesive to have weak adhesion between the positioning side plate 131 and the first side plate 133 and between the positioning base plate 132 and the first base plate 134, resulting in deformation during the assembly of the bottom shell 110. In other embodiments, as a variation, the setting direction of the first limiting ridge 141 can also be set along the first direction, the setting direction of the second limiting ridge 142 can also be set along the first direction, and the setting direction of the third limiting ridge 143 can also be set along the first direction, which is not limited here.

[0046] To sum up, the utility model provides an assembly shell for a car lamp, which is sealed by filling a sealing groove with sealant, which solidifies and forms a sealing rubber ring after cooling in the sealing groove, so that the car lamp cover is fixedly assembled on the bottom shell, avoiding the assembly defects caused by traditional ultrasonic welding technology, improving the assembly quality of the assembly shell during the assembly process, thereby reducing the product defective rate and bringing better production results to users.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing for a vehicle lamp, characterized in that: include: Headlight cover; A bottom shell, provided with a sealing groove for assembling the lamp cover; The sealing groove may be filled with sealant to form a sealing ring to seal the sealing groove, so that the vehicle lamp cover is fixedly assembled on the bottom shell.

2. The assembly housing for a vehicle lamp according to claim 1, characterized in that: Also included is a sealing ring, which is assembled in the sealing groove.

3. The assembly housing for a vehicle lamp according to claim 1, characterized in that: The sealant is hot melt adhesive, and the sealing ring is a hot melt adhesive ring.

4. The assembly housing for a vehicle lamp according to claim 1, characterized in that: A positioning groove is arranged in the sealing groove, and a positioning piece is arranged on the side of the vehicle lamp cover facing the bottom shell, and the positioning piece is assembled in the positioning groove.

5. The assembly housing for a vehicle lamp according to claim 4, characterized in that: The positioning member includes a positioning side plate and a positioning bottom plate, the bottom shell forms a first side plate on at least one side of the positioning groove, and forms a first bottom plate at the bottom of the positioning groove; The positioning side plate may abut against the first side plate portion, and the positioning bottom plate may abut against the first bottom plate portion.

6. The assembly housing for a vehicle lamp according to claim 5, characterized in that: The positioning side plate is provided with a first limiting convex strip, and the positioning bottom plate is provided with a second limiting convex strip; The first limiting convex strip abuts against the first side plate after the positioning member is installed in the positioning groove, and the second limiting convex strip abuts against the first bottom plate after the positioning member is installed in the positioning groove.

7. The assembly housing for a vehicle lamp according to claim 6, characterized in that: The positioning bottom plate is arranged along the first direction, and the positioning side plate is arranged along the second direction; The first direction and the second direction are perpendicular to each other.

8. The assembly housing for a vehicle lamp according to claim 7, characterized in that: The first limiting convex strip is arranged along the third direction, and the second limiting convex strip is arranged along the second direction; The third direction is perpendicular to the first direction and the second direction.

9. The assembly housing for a vehicle lamp according to claim 8, characterized in that: A third limiting convex strip arranged along the first direction or the second direction is further provided on the side of the positioning side plate away from the first limiting convex strip.

10. The assembly housing for a vehicle lamp according to claim 9, characterized in that: The first limiting convex strip, the second limiting convex strip and the third limiting convex strip are configured as rectangular strips or arc strips.

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