Embedded local reinforcing structure for automobile lamp bracket

Abstract

The embedded local reinforcing structure comprises a plastic support and a metal insert, the metal insert comprises a connecting part, a middle part, a step baffle and an anti-skid fixing part, the connecting part and the anti-skid fixing part are located at the two ends of the middle part respectively, and a ball head of the connecting part is fixedly connected with other parts of an automobile lamp. The anti-skid fixing part is integrally formed in the plastic support through anti-skid structures such as grooves, threads and barbs. According to the utility model, an integral injection molding mode is adopted, and the plastic bracket is locally enhanced by using the metal insert, so that the plastic bracket can smoothly pass the vibration test of the whole lamp. The scheme has the advantages of simple structure, low cost, good effect and the like, the strength of the plastic bracket is greatly enhanced, and the cost and the weight of the whole part are not obviously increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps and automotive parts, and particularly relates to an inlaid local strengthening structure for a vehicle lamp bracket. Background Art

[0002] With the increasingly fierce competition in the automotive industry, under the premise of ensuring functionality and effectiveness, cost control has become a higher priority. R & D personnel need to consider more and more factors for cost reduction and efficiency improvement, and must consider from every possible cost-saving starting point. In addition, the current exterior design of automobiles is becoming more and more radical, and the space compression is becoming more and more strict, which poses great challenges to the design of vehicle lamp parts.

[0003] A vehicle lamp generally includes an outer lens, a light source, a bracket, and a lamp housing. Among them, parts such as the light source are fixed on the lamp housing through the bracket, and the outer lens is bonded to the lamp housing, thereby completing the encapsulation of the entire lamp. Currently, the brackets inside vehicle lamps are usually made of all-plastic materials. In the face of some special situations or special positions (such as when the supported parts are heavy or the number of installation points is insufficient), the strength of these plastic brackets may not be enough, resulting in the inability to pass the vibration test of the entire lamp.

[0004] In response to this situation, the conventional solution is to change the material of the bracket from plastic to metal or alloy. Although this method can solve the problem of insufficient strength of the bracket, compared with plastic brackets, the cost of metal brackets is very high and they are heavier, forcing other parts of the lamp to also increase their strength. Therefore, there is an urgent need to design and develop a new vehicle lamp bracket strengthening structure. Summary of the Utility Model

[0005] The main purpose of the utility model is to solve the above problems existing in the prior art, and provide an inlaid local strengthening structure for a vehicle lamp bracket. The local strengthening structure includes a plastic bracket and a metal insert, and the metal insert is pre-embedded and embedded in the area to be strengthened when the plastic bracket is formed.

[0006] Further, the number of the plastic brackets is 1, and the number of the corresponding metal inserts is 1 - 10, and these metal inserts are dispersed at different positions on the border of the plastic bracket. According to the different structures of the vehicle lamp, there are also some differences in the number and distribution positions of the metal inserts to be embedded on each plastic bracket.

[0007] Further, each metal insert includes a middle part 7, an anti-slip fixing part 9, and a connecting part 10. The connecting part 10 and the anti-slip fixing part 9 are respectively located at the left and right ends of the middle part 7. The connecting part 10 is fixedly connected with other parts of the vehicle lamp (such as the lamp housing, etc.), and the anti-slip fixing part 9 is integrally formed and pre-embedded in the plastic bracket.

[0008] Further, the connecting part 10 is specifically a ball head.

[0009] Furthermore, the anti-slip fixing part 9 is specifically a metal rod with anti-slip structures such as grooves, threads, barbs, etc. provided on its surface. These anti-slip structures can ensure a tighter and more reliable combination between the metal insert and the plastic bracket, enabling the entire lamp to successfully pass the vibration test.

[0010] Furthermore, the length of the anti-slip fixing part 9 is equivalent to 40%-80% of the length of the entire metal insert. In order to ensure the bonding strength between the metal insert and the plastic part and the overall strength of the bracket, most of the main body of the metal insert needs to be embedded in the plastic bracket.

[0011] Furthermore, the metal insert further includes a stepped baffle 8, which is located between the middle part 7 and the anti-slip fixing part 9, and the diameter of the stepped baffle 8 is larger than the diameters of the middle part 7 and the anti-slip fixing part 9. The main functions of the stepped baffle are positioning and blocking. It is convenient to fix the metal insert during the injection molding of the plastic bracket, and at the same time, it prevents the molten plastic from escaping.

[0012] Furthermore, positioning blocks 2, card slots 3, and reinforcing ribs 6 are also provided on the plastic bracket, which are used for positioning during installation, connecting other components, and strengthening the plastic bracket respectively.

[0013] Furthermore, the plastic bracket further includes support feet 5, and fixing holes 4 are provided on the support feet 5. Through the fixing holes and the ball head of the metal insert, the bracket can be firmly fixed to other components of the vehicle lamp.

[0014] The utility model adopts an integrally injection-molded method, and uses a metal insert to locally strengthen the plastic bracket to ensure that it successfully passes the vibration test of the entire lamp. Compared with the previous solution of replacing the entire plastic bracket with a metal bracket made of alloy material, the solution provided by the utility model has a very large cost advantage, and the weight of the entire part does not increase significantly, and it will not cause insufficient strength of other supporting parts. In addition, compared with the solution of separately producing a plastic bracket and a metal part and then assembling the two together, the utility model can save additional part assembly time, and the integrally formed process greatly improves the firmness and reliability of the connection between the two.

[0015] Compared with the original old solution, the new solution provided by the utility model has the following advantages: (1) While greatly enhancing the structural strength of the force-bearing part of the plastic bracket, it does not significantly increase the cost and weight of the entire part, greatly reducing the risk of mold repair; (2) This reinforcement structure can be used for the inlay of any two different materials, not only has a simple structure but also has lower production and use costs, and is more advantageous in terms of efficiency and reliability; (3) This reinforcement structure enriches the diversity of the bracket structure design and provides inspiration for subsequent designs. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a plastic bracket;

[0017] Figure 2 It is a schematic structural diagram of a metal insert;

[0018] Figure 3 It is a schematic diagram after the metal insert is integrally formed on the plastic bracket.

[0019] Wherein: 1 - Reinforcement area, 2 - Positioning block, 3 - Card slot, 4 - Fixing hole, 5 - Support leg, 6 - Reinforcing rib, 7 - Middle part, 8 - Step baffle, 9 - Anti-slip fixing part, 10 - Connecting part. Specific embodiments

[0020] To enable those of ordinary skill in the art to fully understand the technical solutions and beneficial effects of the present utility model, the following further explanations are provided in conjunction with specific embodiments and the accompanying drawings. It should be emphasized that the embodiments provided below are only partial embodiments of the present utility model rather than all, and a series of improvements made without departing from the gist of the present utility model should fall within the protection scope of the present utility model.

[0021] Such as Figure 1 A headlight bracket shown in the figure is approximately a rectangular frame as a whole. Multiple groups of card slots 3 and reinforcing ribs 6 are provided on its four sides. Positioning blocks 2 and support legs 5 extend outward at the top corners where its two sides intersect. Fixing holes 4 for fixing the bracket are provided on the support legs 5.

[0022] Since the whole headlight bracket is made of plastic and is hollow in the middle, it may cause the bracket to break and be damaged in some extreme cases. To solve this problem at low cost, local strengthening of the headlight bracket is considered. After analysis, we selected the position in the upper left of the bracket as the reinforcement area 1. During the injection molding of the headlight bracket, the metal insert was pre-fixed on the mold, and then the mold was closed for injection molding to obtain the headlight bracket containing the metal insert as shown in Figure 3 the figure.

[0023] The specific structure of the metal insert is as shown in Figure 2 the figure. One end of it is a ball head (i.e., the connecting part 10), and the other end is a metal rod with a threaded surface (i.e., the anti-slip fixing part 9). A step baffle 8 is also provided on the middle part 7 of the metal insert near the metal rod side, and its diameter is equivalent to the diameter of the ball head, which is significantly higher. During the injection molding process, most of the right side of the metal insert is embedded in the plastic bracket. The threads on the surface of the metal rod improve the firmness of the metal insert. The ball head on the left side provides better support and fixing effects after being connected with other components, and finally successfully passes the vibration test.

[0024] Considering comprehensive factors such as part processing technology, space layout, whole lamp testing, comprehensive utilization of resources and cost, the utility model completes the local strengthening of the automotive lamp bracket at a relatively low cost with minor modifications, avoiding the disadvantages of conventional strengthening schemes in terms of cost and weight. The area that needs to be strengthened is enhanced separately in the form of metal inserts, which not only avoids the risk of mold modification in the later stage but also improves the connection reliability between the metal inserts and the plastic bracket, achieving the dual effects of reducing the cost and weight of the whole lamp simultaneously.

Claims

1. An inlaid local strengthening structure for a headlight bracket, characterized in that: The local strengthening structure includes a plastic bracket and a metal insert. The metal insert includes a connecting portion, an intermediate portion, and an anti-slip fixing portion. The connecting portion and the anti-slip fixing portion are respectively located at both ends of the intermediate portion, and the anti-slip fixing portion is integrally formed in the plastic bracket.

2. The inlaid local strengthening structure according to claim 1, wherein: 1-10 metal inserts are fixedly matched on each plastic bracket.

3. The inlaid local strengthening structure according to claim 1, wherein: The connecting portion of the metal insert is a ball head.

4. The inlaid local strengthening structure according to claim 1, characterized in that: The anti-slip fixing portion is specifically a metal rod with grooves, threads or barbs on its surface.

5. The inlaid local strengthening structure according to claim 1, characterized in that: The length of the anti-slip fixing portion is equivalent to 40%-80% of the length of the entire metal insert.

6. The inlaid local strengthening structure according to claim 1, wherein: The metal insert further includes a stepped baffle, which is located between the intermediate portion and the anti-slip fixing portion, and the diameter of the stepped baffle is larger than the diameters of the intermediate portion and the anti-slip fixing portion.

7. The inlaid local strengthening structure according to claim 1, wherein: Positioning blocks, card slots, and reinforcing ribs are also provided on the plastic bracket.

8. The inlaid local strengthening structure according to claim 1, wherein: The plastic bracket further includes support feet, and fixing holes are provided on the support feet.

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