Automobile headlamp motor upper shell pin needle and framework integrated injection molding structure

Abstract

The application relates to an upper shell pin needle and framework integrated injection molding structure of an automobile headlamp motor, and relates to the technical field of automobile lighting systems, which comprises an upper shell, a framework and a PIN needle, characterized in that the framework is used for plastic packaging of the PIN needle, the framework is integrated injection molding, and the upper shell is used for plastic packaging of the integrated injection molding framework and the PIN needle internally plastic packaged by the framework. The application forms a close whole among the upper shell, the framework and the PIN needle through twice integrated injection molding, avoids assembly gaps, greatly improves the stability and sealing performance of the connection among the upper shell, the framework and the PIN needle, can resist the influence of complex environments, a positioning filler rib can fix the PIN needle, the position of the framework can be further fixed through the setting of a positioning waist line and an extension positioning block extending into a glue reduction hole, the stability is further improved, and glue reduction holes and glue reduction grooves are set to prevent shrinkage deformation caused by excessive glue during the injection molding process.

Description

Technical Field

[0001] This application relates to the technical field of automotive lighting systems, and in particular to an integrated injection-molded structure of the pin and frame of the upper housing of an automotive headlight motor. Background Technology

[0002] As a core component of the automotive lighting system, the performance of the headlight motor directly affects driving safety. With the increasing level of automotive electronics, the requirements for the reliability, sealing, and durability of the PIN connector structure on the motor housing are becoming increasingly stringent.

[0003] The existing PIN pin connector structure for automotive headlight motor housings suffers from insufficient reliability, poor sealing, and low durability. Utility Model Content

[0004] The purpose of this application is to provide an integrated injection-molded structure for the pin and frame of the upper housing of an automotive headlight motor, which has the advantages of improving the stability of the connection between the pin, the frame and the upper housing, and solves the problems of insufficient reliability, poor sealing and low durability of the existing pin insertion structure of the upper housing of automotive headlight motor.

[0005] The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame provided in this application adopts the following technical solution: The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame includes an upper housing, a frame and pins. The frame encapsulates the pins with plastic, and the frame is integrally injection-molded. The upper housing encapsulates the integrally injection-molded frame and the plastic-encapsulated pins inside it, and the upper housing is integrally injection-molded.

[0006] By adopting the above technical solution, the upper shell, skeleton and PIN pin are integrally injection molded twice, making the connection between the three more compact and firm, effectively improving the reliability of the overall structure, while reducing gaps in the assembly process, enhancing sealing, and thus improving the durability of the automotive headlight motor in complex environments.

[0007] Preferably, the skeleton is provided with a plurality of through holes for reducing adhesive.

[0008] By adopting the above technical solution, the amount of glue used in the injection molding of the skeleton can be reduced, thereby reducing shrinkage and deformation caused by excessive glue, ensuring the dimensional accuracy of the skeleton, and reducing the weight of the skeleton, which is beneficial to optimizing the performance of the overall structure.

[0009] Preferably, a positioning filler rib is provided inside the reducing hole corresponding to the position of the PIN pin. The positioning filler rib is located on the side of the PIN pin, and the positioning filler rib and the skeleton are integrally injection molded.

[0010] By adopting the above technical solution, the positioning filler rib can further position and fix the PIN pin, prevent the cavity of the corresponding reduction hole from affecting the stability of the PIN pin, avoid the PIN pin from shifting or shaking during skeleton injection molding and subsequent use, ensure the positional accuracy of the PIN pin, and improve the stability of the structure.

[0011] Preferably, a positioning waistline is provided on the outer surface of the middle part of the skeleton, and the positioning waistline and the skeleton are integrally injection molded.

[0012] By adopting the above technical solution, the positioning waistline can play a role in positioning and limiting during the secondary injection molding of the skeleton and the upper shell, ensuring the accurate position of the skeleton inside the upper shell, avoiding displacement of the skeleton, and thus ensuring the assembly accuracy of the overall structure.

[0013] Preferably, an extension positioning block is provided inside the upper shell at the position corresponding to the glue reduction hole, which is close to the skeleton. The extension positioning block and the upper shell are integrally injection molded.

[0014] By adopting the above technical solution, the extended positioning block extends into the interior of the adhesive reduction hole, further strengthening the connection between the upper shell and the skeleton, making the two more tightly integrated, improving the overall structure's impact resistance and stability, and enhancing the sealing performance.

[0015] Preferably, the upper shell is provided with multiple adhesive reduction grooves at the positions corresponding to the adhesive reduction holes, and the adhesive reduction grooves do not penetrate the upper shell to the skeleton.

[0016] By adopting the above technical solution, the glue-reducing groove can reduce the amount of glue at the corresponding extension positioning block position of the upper shell, reduce the shrinkage stress during the injection molding of the upper shell, avoid defects such as cracking of the upper shell, ensure the structural integrity of the upper shell, and at the same time reduce the weight of the upper shell.

[0017] Preferably, the upper shell is reinforced by multiple adjacent adhesive reduction grooves, and the reinforcing ribs and the upper shell are integrally injection molded.

[0018] By adopting the above technical solutions, the reinforcing ribs can effectively improve the structural strength and rigidity of the upper shell while reducing the amount of glue and weight, enhancing the upper shell's resistance to deformation, and ensuring the stability and reliability of the upper shell during use.

[0019] Preferably, the PIN pin is bent, with the bend located inside the skeleton. The openings at both ends of the skeleton are oriented in the same direction as the openings at both ends of the PIN pin. The PIN pin and the skeleton are bent and located inside the upper shell. The electrical input and output terminals of the upper shell are oriented in the same direction as the openings at both ends of the PIN pin.

[0020] By adopting the above technical solution, the bent PIN pin, together with the skeleton and the upper shell, can further improve the tightness of the connection between the PIN pin, the skeleton and the upper shell, and avoid the loosening of the connection between the PIN pin, the skeleton and the upper shell during the insertion and removal of the PIN pin and the plug, thereby further improving the stability and tightness between the PIN pin, the skeleton and the upper shell. At the same time, the bent PIN pin design allows for a reasonable layout within a limited space.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This automotive headlight motor upper housing PIN and frame are integrally injection molded. Through two integral injection molding processes, the upper housing, frame, and PIN are formed into a tight whole, avoiding assembly gaps and significantly improving the stability and sealing of the connection between the upper housing, frame, and PIN. It can withstand the influence of complex environments. The positioning filler ribs can fix the PIN. By setting a positioning waistline and an extension positioning block extending into the glue reduction hole, the position of the frame can be further fixed, further improving stability. The glue reduction hole and glue reduction groove can prevent shrinkage deformation caused by excessive glue during injection molding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure of the PIN pin extending into the interior of the upper shell in this application; Figure 3 This is a schematic diagram of the structure for opening the adhesive reduction hole in this application; Figure 4 This is an exploded view of the skeleton and PIN pins of this application; Figure 5 This is a cross-sectional view of the skeleton and PIN pins of this application; Figure 6 This is a side sectional view of the upper shell and skeleton of this application.

[0023] In the picture: 1. Top shell; 2. Skeleton; 3. PIN pin; 4. Reduction hole; 5. Positioning filling rib; 6. Positioning waistline; 7. Extension positioning block; 8. Reduction groove; 9. Reinforcing rib. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0025] Example 1: Integrated injection-molded structure of the pin and frame for the upper housing of an automotive headlight motor. Please refer to [link / reference]. Figure 2 , Figure 3 and Figure 6The system includes an upper shell 1, a frame 2, and PIN pins 3. The frame 2 encapsulates the PIN pins 3 with plastic, and the frame 2 is integrally injection molded. The upper shell 1 encapsulates the integrally injection molded frame 2 and its internally encapsulated PIN pins 3 with plastic, and the upper shell 1 is integrally injection molded. The upper shell 1, frame 2, and PIN pins 3 are integrally injection molded twice, making the connection between the three more compact and firm, effectively improving the reliability of the overall structure, reducing gaps in the assembly process, enhancing sealing, and thus improving the durability of the automotive headlight motor in complex environments.

[0026] Please see Figure 3 , Figure 4 and Figure 5 The skeleton 2 is provided with multiple through holes 4. The through holes 4 can reduce the amount of glue during the injection molding of the skeleton 2, reduce shrinkage and deformation caused by excessive glue, ensure the dimensional accuracy of the skeleton 2, and reduce the weight of the skeleton 2, which is conducive to optimizing the performance of the overall structure.

[0027] Please see Figure 3 , Figure 4 and Figure 5 The PIN pin 3 is positioned inside the reducing hole 4 with a positioning filling rib 5. The positioning filling rib 5 is located on the side of the PIN pin 3 and is integrally injection molded with the skeleton 2. The positioning filling rib 5 can further position and fix the PIN pin 3, prevent the cavity corresponding to the reducing hole 4 from affecting the stability of the PIN pin 3, avoid the PIN pin 3 from shifting or shaking during the injection molding of the skeleton 2 and subsequent use, ensure the positional accuracy of the PIN pin 3, and improve the stability of the structure.

[0028] Please see Figure 3 , Figure 4 and Figure 6 A positioning waistline 6 is provided on the outer surface of the middle part of the skeleton 2. The positioning waistline 6 is integrally injection molded with the skeleton 2. When the skeleton 2 and the upper shell 1 are subjected to secondary injection molding, the positioning waistline 6 can play a positioning and limiting role, ensuring that the skeleton 2 is accurately positioned inside the upper shell 1, avoiding displacement of the skeleton 2, thereby ensuring the assembly accuracy of the overall structure.

[0029] Please see Figure 6 An extension positioning block 7 is provided inside the upper shell 1, close to the skeleton 2, at the position corresponding to the glue reduction hole 4. The extension positioning block 7 is integrally injection molded with the upper shell 1. The extension positioning block 7 extends into the glue reduction hole 4, further strengthening the connection between the upper shell 1 and the skeleton 2, making the two more tightly combined, improving the impact resistance and stability of the overall structure, and enhancing the sealing performance.

[0030] Please see Figure 1 and Figure 6The upper shell 1 is provided with multiple glue reduction grooves 8 at the position corresponding to the glue reduction hole 4. The glue reduction grooves 8 do not penetrate the upper shell 1 to the skeleton 2. The glue reduction grooves 8 can reduce the amount of glue at the position corresponding to the extension positioning block 7 of the upper shell 1, reduce the shrinkage stress of the upper shell 1 during injection molding, avoid defects such as cracking of the upper shell 1, ensure the structural integrity of the upper shell 1, and at the same time reduce the weight of the upper shell 1.

[0031] Please see Figure 1 The upper shell 1 forms a reinforcing rib 9 through the setting of multiple adjacent glue reduction grooves 8. The reinforcing rib 9 and the upper shell 1 are integrally injection molded. The reinforcing rib 9 can effectively improve the structural strength and rigidity of the upper shell 1 while reducing the amount of glue and weight, enhance the deformation resistance of the upper shell 1, and ensure the stability and reliability of the upper shell 1 during use.

[0032] Example 2: Integrated injection-molded structure of the pin and frame for the upper housing of an automotive headlight motor. Please refer to [link / reference]. Figure 2 , Figure 3 and Figure 6 The PIN pin 3 is bent, and the bend of the PIN pin 3 is located inside the frame 2. The openings at both ends of the frame 2 are aligned with the orientation of the two ends of the PIN pin 3. The PIN pin 3 and the frame 2 are bent and located inside the upper shell 1. The orientation of the electrical input and output terminals of the upper shell 1 is aligned with the orientation of the two ends of the PIN pin 3. The bent PIN pin 3, together with the frame 2 and the upper shell 1, can further improve the tightness of the connection between the PIN pin 3, the frame 2 and the upper shell 1, and prevent the connection between the PIN pin 3, the frame 2 and the upper shell 1 from loosening during the insertion and removal of the PIN pin 3 and the plug. This further improves the stability and tightness between the PIN pin 3, the frame 2 and the upper shell 1. At the same time, the bent PIN pin 3 allows for a reasonable layout within a limited space.

[0033] The implementation principle of this application embodiment is as follows: The PIN pin 3 is precisely placed in the mold, and the skeleton 2 that wraps the PIN pin 3 is formed by injection molding. The skeleton 2 wraps the PIN pin 3 and is integrally formed. During this process, the glue reduction hole 4 reduces the local glue thickness of the skeleton 2, avoiding problems such as incomplete filling or missing glue due to excessive local glue thickness and high glue flow resistance. At the same time, it avoids uneven cooling and shrinkage of the glue, resulting in shrinkage marks on the surface. During the injection molding process, the skeleton 2 forms a positioning filling rib 5 in the glue reduction hole 4 to clamp and fix the PIN pin 3, improving the stability of the PIN pin 3 inside the skeleton 2. The positioning waistline 6 is formed simultaneously during the injection molding process of the skeleton 2, providing a stable connection node for the subsequent encapsulation of the skeleton 2 by the outer shell 1. Then, the second injection molding is carried out. The skeleton 2 is placed into the injection mold of the upper shell 1, and the upper shell 1 that wraps the skeleton 2 and the PIN pin 3 is formed by injection molding. During the injection molding process of the upper shell 1, the glue extends into the glue reduction hole 4 to form an extension positioning block 7, which makes the extension positioning block 7 extends into the reducing hole 4 and fits into the skeleton 2 to enhance connection and sealing. The reducing groove 8 reduces the amount of glue and avoids problems such as incomplete filling and missing glue due to excessive local glue thickness during the injection molding of the upper shell 1, which leads to high flow resistance of the glue. At the same time, it avoids uneven cooling and shrinkage of the glue, resulting in shrinkage marks on the surface. During the injection molding process, a reinforcing rib 9 will be formed between adjacent reducing grooves 8 of the upper shell 1 to improve the strength of the upper shell 1 and prevent the setting of the reducing groove 8 from affecting the strength of the outer shell 1. The bent PIN pin 3, together with the skeleton 2 and the upper shell 1, can further improve the tightness of the connection between the PIN pin 3, the skeleton 2 and the upper shell 1, and prevent the connection between the PIN pin 3, the skeleton 2 and the upper shell 1 from loosening during the insertion and removal of the PIN pin 3 and the plug. This further improves the stability and tightness between the PIN pin 3, the skeleton 2 and the upper shell 1. At the same time, the bent PIN pin 3 allows for a reasonable layout in a limited space. The overall structure is formed through two integral injection moldings and the cooperation of various components.

Claims

1. An integrated injection-molded structure of the upper shell, pin, and frame of an automotive headlight motor, comprising an upper shell (1), a frame (2), and a pin (3), characterized in that: The skeleton (2) encapsulates the PIN pin (3) with plastic. The skeleton (2) is integrally injection molded. The upper shell (1) encapsulates the integrally injection molded skeleton (2) and the internally encapsulated PIN pin (3) with plastic. The upper shell (1) is integrally injection molded.

2. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 1, characterized in that: The skeleton (2) is provided with multiple through-holes (4) for reducing adhesive.

3. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 2, characterized in that: The inside of the reducing hole (4) is provided with a positioning filling rib (5) corresponding to the position of the PIN pin (3). The positioning filling rib (5) is located on the side of the PIN pin (3). The positioning filling rib (5) and the skeleton (2) are integrally injection molded.

4. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 1, characterized in that: The outer surface of the middle part of the skeleton (2) is provided with a positioning waistline (6) that surrounds the skeleton (2), and the positioning waistline (6) and the skeleton (2) are integrally injection molded.

5. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 1, characterized in that: An extension positioning block (7) is provided inside the upper shell (1) at the position corresponding to the glue reduction hole (4) close to the skeleton (2). The extension positioning block (7) and the upper shell (1) are integrally injection molded.

6. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 1, characterized in that: The upper shell (1) is provided with multiple glue-reducing grooves (8) at the position corresponding to the glue-reducing hole (4). The glue-reducing grooves (8) do not penetrate the upper shell (1) to the skeleton (2).

7. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 6, characterized in that: The upper shell (1) forms a reinforcing rib (9) by setting multiple adjacent rubber reduction grooves (8), and the reinforcing rib (9) and the upper shell (1) are integrally injection molded.

8. The integrated injection-molded structure of the automotive headlight motor upper housing pin and frame according to claim 1, characterized in that: The PIN (3) is bent, and the bend of the PIN (3) is located inside the skeleton (2). The openings at both ends of the skeleton (2) are aligned with the orientation of the two ends of the PIN (3). The PIN (3) and the skeleton (2) are bent and located inside the upper shell (1). The orientation of the electrical input and output terminals of the upper shell (1) is aligned with the orientation of the two ends of the PIN (3).

Images