Welding-free new energy vehicle electronic connector

Abstract

The utility model relates to the welding -free new energy automobile electronic connector in the field of electronic connector, including insulating shell and plug -in terminal, the installation cavity that goes through the insulating shell is arranged in the insulating shell, and the both ends opening of installation cavity are respectively the interface and the wiring port, and the plug -in terminal is inserted into the installation cavity from the wiring port of insulating shell, and the one end of plug -in terminal near the wiring port is provided with the clamping structure for connecting with the conductor part of wire, and the insulating shell still is provided with fastening screw and the threaded hole that communicates with the installation cavity, and the plug -in terminal surface that has inserted into the installation cavity is pressed tightly after fastening screw passes through threaded hole, to limit the plug -in terminal and exit from the installation cavity, and the wire only needs to be inserted and can be automatically clamped and fixed, and the reliable electrical and mechanical connection is completed, greatly simplifies the assembly procedure, improves production efficiency, and reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of electronic connectors, and in particular to solderless electronic connectors for new energy vehicles. Background Technology

[0002] With the global energy structure transformation and increasing environmental awareness, the new energy vehicle industry has experienced rapid development. Electronic connectors, as key fundamental components in automotive electrical systems, are hailed as the "nerves of the car," bearing the important mission of energy transmission and signal control between various electrical units throughout the vehicle. Their reliability, stability, and safety directly affect the operational efficiency and driving safety of new energy vehicles. Especially in high-voltage, high-current applications such as battery management systems (BMS), motor controllers, and on-board chargers (OBC), extremely stringent requirements are placed on the electrical, mechanical, and environmental resistance performance of connectors.

[0003] Many electronic connectors used in new energy vehicles commonly employ soldering (such as tin soldering) to connect their wires to the terminals. While this traditional process is widely used, it has several inherent drawbacks: First, the soldering process is complex and cumbersome, requiring multiple steps such as wire stripping, pre-soldering, soldering to terminals, and cooling, resulting in low production efficiency. The soldering quality is easily affected by factors such as operator skill level, solder quality, and temperature control, leading to potential issues like cold solder joints and false solder joints, which can increase connection resistance, cause overheating, or even open circuits. Reliability risks are even higher under long-term vibration environments. Furthermore, the high temperatures and flux fumes generated during soldering can cause thermal damage or contamination to the terminal plating and insulating shell, placing higher demands on the production environment and workplace health. Therefore, a new connection method is urgently needed to overcome these shortcomings of the soldering process. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a solderless electronic connector for new energy vehicles, which can effectively solve the technical problem that the wires and plug terminals need to be soldered, resulting in a complex process.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A solderless electronic connector for new energy vehicles includes an insulating shell and a plug terminal. The insulating shell has a mounting cavity that extends through it. The two ends of the mounting cavity have openings for a mating interface and a wiring port, respectively. The plug terminal is inserted into the mounting cavity through the wiring port of the insulating shell. The end of the plug terminal near the wiring port has a clamping structure for connecting to the conductor portion of a wire. The insulating shell also has a fastening screw and a threaded hole communicating with the mounting cavity. After passing through the threaded hole, the fastening screw presses against the surface of the plug terminal inserted into the mounting cavity to prevent the plug terminal from exiting the mounting cavity.

[0007] Furthermore, the clamping structure is an elastic clamp, which consists of a pair of oppositely arranged elastic clamping arms, with a clamping groove formed between the two elastic clamping arms for clamping the conductor portion.

[0008] Furthermore, the two elastic locking arms are provided with anti-slip teeth at opposite ends, and the anti-slip teeth are wavy.

[0009] Furthermore, the surface of the plug-in terminal is provided with a limiting recess corresponding to the end of the fastening screw.

[0010] Furthermore, there are two or more mounting cavities, which are equidistantly arranged inside the insulating shell, and each mounting cavity is fitted with a plug-in terminal.

[0011] Furthermore, the plug-in terminal is provided with a positioning rib at one end of the wiring port, and the positioning rib protrudes towards the inside of the plug-in terminal.

[0012] Compared with existing technologies, the advantages of this invention are as follows: The clamping structure at one end of the connector allows the wire to be automatically clamped and fixed simply by insertion, achieving a reliable electrical and mechanical connection. This eliminates the tedious steps of wire stripping, tinning, soldering, and cleaning, greatly simplifying the assembly process, improving production efficiency, and reducing production costs. The clamping structure provides a strong and consistent mechanical clamping force, ensuring low contact resistance and stable connection between the wire and the connector, avoiding potential quality issues such as cold solder joints or poor welds. Combined with the axial locking of the connector itself by the fastening screws, a double safety mechanism is formed, ensuring that the connector maintains extremely high connection reliability and long-term stability even under the harsh conditions of high intensity and high vibration in new energy vehicles. Attached Figure Description

[0013] Figure 1 This is a front perspective view of the present invention;

[0014] Figure 2 This is a rear-view perspective view of the present invention;

[0015] Figure 3 This is an exploded view of the structure of this utility model;

[0016] Figure 4 This is a top view of the connection between the plug-in terminal and the wire in this utility model;

[0017] Figure 5 This is a structural diagram showing the connection between the plug-in terminal and the wire in this utility model;

[0018] Figure 6 This is a schematic diagram of the elastic locking arm when it is extended outward in this utility model;

[0019] Figure 7This is a schematic diagram showing the elastic locking arm pressing against the inner wall of the mounting cavity in this utility model;

[0020] The numbers in the diagram are: 1-Insulating shell, 101-Mounting cavity, 102-Matching interface, 103-Wiring port, 104-Threaded hole, 2-Plug-in terminal, 201-Elastic locking arm, 202-Anti-slip teeth, 203-Limiting recess, 204-Positioning rib, 3-Wire, 301-Conductor part, 4-Fasting screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is combined with Figures 1-7 The present invention provides a detailed description of the solderless electronic connector for new energy vehicles:

[0023] A solderless electronic connector for new energy vehicles includes an insulating shell 1 and a plug terminal 2. The insulating shell 1 has a mounting cavity 101 that penetrates the insulating shell 1. The two ends of the mounting cavity 101 have an interface 102 and a wiring port 103, respectively. The plug terminal 2 is inserted into the mounting cavity 101 from the wiring port 103 of the insulating shell 1. The end of the plug terminal 2 near the wiring port 103 is provided with a clamping structure for connecting with the conductor part 301 of the wire 3. The insulating shell 1 is also provided with a fastening screw 4 and a threaded hole 104 communicating with the mounting cavity 101. After the fastening screw 4 passes through the threaded hole 104, it presses against the surface of the plug terminal 2 that has been inserted into the mounting cavity 101 to prevent the plug terminal 2 from being pulled out of the mounting cavity 101.

[0024] The clamping structure is an elastic clamp, which consists of a pair of opposing elastic clamping arms 201. A clamping groove for holding the conductor portion 301 is formed between the two elastic clamping arms 201. The opposite ends of the two elastic clamping arms 201 are bent and provided with anti-slip teeth 202, which are wavy. When the plug-in terminal 2 is not inserted into the mounting cavity 101, the elastic clamping arms 201 are spread outward to both sides, and the distance between the elastic clamping arms 201 is greater than the inner width of the mounting cavity 101, thus securing the conductor portion 301 between the two elastic clamping arms 201. When the plug-in terminal 2 is inserted into the mounting cavity 101, the two elastic clamping arms 201 are pressed inward, and the anti-slip teeth 202 clamp the conductor portion 301. After the plug-in terminal 2 is fully inserted into the mounting cavity 101, the inner wall of the mounting cavity 101 presses against the elastic clamping arms 201, ensuring that the elastic clamping arms 201 clamp the conductor portion 301.

[0025] The mounting cavity 101 is provided in three parts, which are equidistantly arranged inside the insulating shell 1. Each mounting cavity 101 is provided with a plug terminal 2. This expands its application range, makes the connector structure compact and rationally laid out, and is conducive to realizing the synchronous transmission of multiple signals or electrical energy in a limited space, meeting the growing demand for high integration of electrical systems in new energy vehicles.

[0026] The wire 3 can be fixed without additional tools, greatly simplifying the on-site assembly process. The final constraint of the elastic clamping arm 201 on the inner wall of the mounting cavity 101 ensures continuous, stable, and consistent clamping force, effectively avoiding the problem of clamping force attenuation caused by metal fatigue. The wavy anti-slip teeth 202 can better engage the conductor surface, significantly increasing the contact area and reducing contact resistance, while providing excellent vibration and pull-out resistance, completely eliminating the possibility of wire 3 loosening. Combined with the axial locking of the plug terminal 2 itself by the fastening screw 4, a double insurance is formed, enabling the connector to maintain extremely high connection reliability and long-term stability even under the harsh working conditions of high intensity and high vibration in new energy vehicles.

[0027] Furthermore, the surface of the plug terminal 2 is provided with a limiting recess 203 corresponding to the end of the fastening screw 4. The limiting recess 203 provides a precise positioning and bearing point for the end of the fastening screw 4, preventing the screw from slipping at its end during tightening, scratching, or even damaging the surface plating of the plug terminal 2, thereby protecting the terminal and maintaining its good conductivity. This concentrates the tightening force within the recess, greatly enhancing the locking effect of the screw on the axial movement of the plug terminal 2, preventing accidental retraction under vibration and impact, and improving the absolute reliability of the connection.

[0028] The plug-in terminal 2 has a positioning rib 204 at one end of the wiring port 103, with the positioning rib 204 protruding inwards towards the plug-in terminal 2. The positioning rib 204 plays a crucial guiding and error-prevention role, providing initial guidance when the plug-in terminal 2 is inserted into the mounting cavity 101, making it easier to align the terminal with the mounting cavity 101, simplifying the installation operation. More importantly, its inward protrusion design prevents the plug-in terminal 2 from being inserted into the mounting cavity 101 from the wrong direction or angle, effectively avoiding connection failures or component damage caused by reverse installation, and improving the accuracy and reliability of product use.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A solderless new energy vehicle electronic connector, comprising an insulating shell and a plug-in terminal, characterized in that: The insulating shell has a mounting cavity that extends through it. The two ends of the mounting cavity are a mating interface and a wiring port, respectively. The plug-in terminal is inserted into the mounting cavity from the wiring port of the insulating shell. The end of the plug-in terminal near the wiring port is provided with a clamping structure for connecting to the conductor part of the wire. The insulating shell is also provided with a fastening screw and a threaded hole communicating with the mounting cavity. After the fastening screw passes through the threaded hole, it presses against the surface of the plug-in terminal that has been inserted into the mounting cavity to prevent the plug-in terminal from being pulled out of the mounting cavity.

2. The welding-free new energy vehicle electronic connector according to claim 1, characterized in that: The clamping structure is an elastic clamp, which consists of a pair of oppositely arranged elastic clamping arms, with a groove formed between the two elastic clamping arms for clamping the conductor part.

3. The welding-free new energy vehicle electronic connector according to claim 2, characterized in that: The two elastic locking arms are provided with anti-slip teeth at opposite ends, and the anti-slip teeth are wavy.

4. The welding-free new energy vehicle electronic connector according to any one of claims 1-3, characterized in that: The surface of the plug terminal is provided with a limiting recess corresponding to the end of the fastening screw.

5. The welding-free new energy vehicle electronic connector according to any one of claims 1-3, characterized in that: The mounting cavity is provided in two or more, and the two or more mounting cavities are equally spaced inside the insulating shell, and each mounting cavity is provided with a plug-in terminal.

6. The solderless electronic connector for new energy vehicles according to any one of claims 1-3, characterized in that: The plug-in terminal has a positioning rib at one end of the wiring port, and the positioning rib protrudes towards the inside of the plug-in terminal.

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