Multi-pin low voltage automotive connector

Abstract

The utility model provides a kind of multi-PIN low-voltage automobile connector, comprising: plastic cover, the front end of plastic cover is fixed with several stamping PIN terminals, the lower end of stamping PIN terminal is formed with two or more soldering legs, and the middle end between two adjacent soldering legs is connected transversely by material bridge. This kind of multi-PIN low-voltage automobile connector can avoid terminal stamping material turning, and can also avoid the inconsistency of left and right or front and back inclination when bending, ensure the position degree of soldering leg, and the middle connection of soldering leg can also increase the effect of current.

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, and more specifically, to a multi-pin low-voltage automotive connector. Background Technology

[0002] Multi-pin low-voltage automotive connectors, as core interface components of automotive controller transmission modules, play an indispensable role in signal interaction within automotive electronic control systems. Their core function is to enable data transmission between multiple modules through a single interface. With the increasing level of automotive electronics and the growing integration of controller transmission modules, higher demands are being placed on the transmission stability, structural reliability, and production economy of multi-pin low-voltage automotive connectors.

[0003] To ensure the positional accuracy of the terminal pins in existing multi-pin low-voltage automotive connectors meets assembly and transmission precision requirements, a common manufacturing process and structural design involves inserting the pins, bending them, and then attaching a plastic cap. Specifically, this method first inserts the terminal pin into a preset position, adjusts the pin's orientation through bending, and finally attaches a plastic cap to position and constrain the pin, thereby controlling its positional accuracy.

[0004] However, the aforementioned existing technical solutions have significant limitations in practical applications: on the one hand, the multi-step process of inserting pins, bending, and assembling plastic caps prolongs the production cycle, significantly reducing product production efficiency and making it difficult to meet the efficiency requirements of large-scale industrial production; on the other hand, the combined costs of equipment investment, tooling fixtures, and manual operation for each step significantly increase the overall investment and manufacturing costs of the product. Furthermore, the assembly process of the plastic caps may introduce additional assembly errors, potentially affecting the stability of the terminal pin position and further limiting the potential for improving product quality. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a multi-PIN low-voltage automotive connector.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-PIN low-voltage automotive connector, comprising: a plastic cover, wherein a plurality of stamped PIN terminals are fixed at the front end of the plastic cover, and two or more solder feet are formed at the lower end of the stamped PIN terminals, and the middle ends of two adjacent solder feet are laterally connected by a material bridge.

[0007] A further preferred embodiment: the stamped PIN terminal is stamped, electroplated, and bent.

[0008] A further preferred embodiment: the two adjacent weld legs and the material bridge are H-shaped as a whole.

[0009] A further preferred embodiment: the front end of the plastic cover is fixed with several single-pin pins.

[0010] Beneficial effects:

[0011] 1. By setting an H-shaped connection structure between the welding foot and the material bridge, the lateral constraint of the material bridge on multiple welding feet can be used to prevent single welding feet from flipping or warping due to lack of support during the stamping process of the terminal, thereby improving the yield of the terminal stamping process.

[0012] 2. By setting up a material bridge to connect multiple solder feet, when the stamped PIN terminal is bent, the material bridge can simultaneously constrain the posture of multiple solder feet, so that the bent solder feet will not shift left and right or tilt back and forth inconsistently, thus achieving precise control of the solder foot position and effectively avoiding product defects with NG position.

[0013] 3. By setting an integrated H-type soldering foot structure, there is no need to assemble additional plastic caps for terminal positioning, which reduces the process of inserting pins, bending and installing plastic caps, thereby improving production efficiency and reducing the equipment, tooling and labor costs corresponding to multiple processes.

[0014] 4. In summary, this type of multi-PIN low-voltage automotive connector, by setting H-type solder feet and material bridges, takes into account terminal position accuracy, production economy and current transmission capacity, effectively solving the defects of existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the two solder feet stamped PIN terminal structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the three-pin stamped PIN terminal structure of this utility model.

[0020] Figure 1-5 In the middle: 1. Plastic cap; 2. Stamped PIN terminal; 3. Solder foot; 4. Material bridge; 5. Single PIN pin. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0022] Please see Figure 1-5 In this embodiment of the present invention, a multi-PIN low-voltage automotive connector includes: a plastic cover 1, which serves as the main support and protective structure of the connector. The front end of the plastic cover has several mounting slots and reserved slots adapted to the terminals for fixing stamped PIN terminals 2 and single PIN pins 5. The plastic cover 1 is made of flame-retardant PA66 material through injection molding. During injection molding, mounting slots and reserved slots adapted to the stamped PIN terminals 2 and single PIN pins 5 are reserved at the front end. Several stamped PIN terminals 2 are fixed to the front end of the plastic cover 1, integrally formed through stamping, electroplating, and bending processes, and fixed in the mounting slots of the plastic cover 1. The lower end of the stamped PIN terminal 2 is integrally formed with two or more solder feet 3. The stamped PIN terminal 2 is stamped, electroplated, and bent. Adjacent solder feet 3 are laterally connected by a material bridge 4. The two adjacent solder feet 3 and the material bridge 4 are H-shaped. An H-shaped connection is designed between two or more solder feet 3 of the stamped PIN terminal 2 to prevent the terminal 2 from being punched out and flipped. To avoid inconsistent tilting of the solder feet 3 when bending, ensuring the positional accuracy of the solder feet 3, and increasing the current through the intermediate connection; the stamped PIN terminal 2 is made of copper alloy material (such as brass H62) and is stamped to form an H-shaped structure of the main body, two / three solder feet 3 and material bridge 4. After stamping, it is tin-plated to improve the conductivity and corrosion resistance of the terminal. Finally, the terminal is bent to make the solder feet 3 reach the preset assembly angle; several single PIN pins 5 are fixed at the front end of the plastic cover 1 and fixed in the reserved slot at the front end of the plastic cover 1. They cooperate with the stamped PIN terminal 2 to realize the data / current transmission of multiple modules; when connected and bent, it can avoid the misalignment of two or more solder feet 3 in the front and back or left and right. After the terminal 2 is connected, it will not shift in the front, back, left and right after bending. The advantages of connecting it compared to the traditional disconnected method are: 1. The terminal 3 will not shift in the front, back, left and right after bending; 2. If it is not connected, the solder feet 3 are too long, and the stamping is prone to deformation and insufficient strength; 3. The connected method can carry a larger current. Rated current: 10A; Insulation resistance: minimum 1000MΩ; Contact resistance: maximum 20mΩ; Withstand voltage: 500VAC; Temperature range: -40°C to 125°C.

[0023] Working Principle: The prepared stamped PIN terminal 2 (stamped, electroplated, and bent) is inserted into the mounting groove of the plastic cover 1, and the groove of the plastic cover 1 is used to position and fix the terminal body. The single PIN pin 5 is inserted into the reserved groove of the plastic cover 1 to complete the assembly of the single PIN pin. The assembled connector is tested, including the position of the solder feet 3 (using an image measuring instrument to measure the offset of the solder feet) and the current carrying capacity (testing the current carrying capacity of the terminal to ensure that it meets the current requirements of the low-voltage automotive module). The terminal 2 structure design connects two or more solder feet 3 together. This can prevent the terminal from being deformed during the stamping process and ensure that the solder feet 3 will not be tilted inconsistently after the terminal 2 is bent, resulting in position NG (product defect). The current carrying capacity can also be increased accordingly. During the assembly of the automotive controller transmission module, the H-type solder foot structure of this connector can be directly soldered to the module's solder pads without additional correction of the solder foot position.

Claims

1. A multi-pin low-voltage automotive connector, comprising: A plastic cap (1) is characterized in that: a plurality of stamped PIN terminals (2) are fixed at the front end of the plastic cap (1), and two or more solder feet (3) are formed at the lower end of the stamped PIN terminals (2), and the middle ends of two adjacent solder feet (3) are connected laterally by a material bridge (4).

2. The multi-pin low-voltage automotive connector according to claim 1, characterized in that: The stamped PIN terminal (2) is stamped, electroplated, and bent.

3. A multi-pin low-voltage automotive connector according to claim 1, characterized in that: The two adjacent welding feet (3) and the material bridge (4) are H-shaped as a whole.

4. A multi-pin low-voltage automotive connector according to claim 1, characterized in that: The front end of the plastic cap (1) is fixed with several single-pin pins (5).

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