Direct current PE copper pipe split groove terminal of multiple wire outlet structures of new energy automobile

Abstract

The utility model discloses a direct current PE copper pipe split groove terminal of a new energy automobile with multiple wire outlet structures, comprising a terminal body and a male end insertion sheet, the terminal body comprises a clamping part, a fixing part and a welding part which are integrally arranged in sequence along the axial direction, and the welding part is arranged in a flat manner and is used for installing a large-diameter cable; a plurality of elastic arms are arranged on one side of the clamping part in a surrounding mode in the circumferential direction. The male end insertion piece sequentially comprises an installation part which is inserted into the welding part and fixedly connected with the welding part, insertion parts which are arranged on one side of the installation part side by side in a scattered mode and used for being connected with the female end insertion grooves in an inserted mode and installing small-diameter cables, and connection parts which connect the installation part and the insertion parts. According to the utility model, through multi-wire-diameter compatibility and function integration design, the core requirement of a high-voltage direct current system of a new energy automobile on space intensification is met.

Description

Technical Field

[0001] This utility model relates to the field of current-carrying terminal technology, and in particular to a DC PE copper tube slotted terminal with multiple outgoing line structures for new energy vehicles. Background Technology

[0002] A DC charging socket is an on-board charging interface used in new energy vehicles to directly charge the car battery via DC. With the increasing growth of the new energy vehicle market, the safety performance of grounding protection during charging sockets is becoming increasingly demanding. Automakers' requirements for grounding protection between DC charging sockets, charging piles, and vehicles, as well as the connection of charging control signals and the shielding and grounding functions of power cables, are becoming more complex. Traditional DC charging ports for new energy vehicles have a single-function PE terminal, which can no longer meet the needs of the market and automakers. Furthermore, the manufacturing process of traditional DC PE terminals is complex, cannot be automated, and is expensive, making it difficult to meet customer needs. Summary of the Invention

[0003] This application provides a DC PE copper tube slotted terminal for new energy vehicles with multiple outgoing line structures. Through multi-diameter compatibility and functional integration design, it adapts to the core requirement of space-efficient high-voltage DC systems in new energy vehicles.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a slotted DC PE copper tube terminal for new energy vehicles with multiple outgoing cable structures, comprising...

[0005] The terminal body includes a clamping part, a fixing part and a welding part that are integrally arranged in sequence along the axial direction, and a welding part that is flat for installing large-diameter cables. Several elastic arms are arranged circumferentially around one side of the clamping part.

[0006] The male connector includes, in sequence, a mounting part that is inserted into and fixedly connected to the welding part, a plug-in part that is arranged in parallel on one side of the mounting part for plugging into several female slots and installing small-diameter cables, and a connecting part that connects the mounting part and the plug-in part.

[0007] Compared with the prior art, the advantages of this utility model are:

[0008] The welding section is used to install large-diameter cables (such as power cable shielding layers and PE grounding wires). By flattening the structure to increase the contact area, combined with the high conductivity of copper tubes, it achieves low-resistance, high-current-carrying installation to meet the high-power requirements of fast charging piles. At the same time, the plug-in section adopts a multi-branch parallel design to support precise docking of small-diameter cables (such as charging control signal lines and low-voltage grounding wires) with the female slot. A single terminal can simultaneously integrate signal transmission (CAN communication) and grounding functions, integrating multiple signal interfaces in a limited space, reducing the number of connectors, and adapting to the installation requirements of compact charging pile sockets. This DC PE copper tube slotted terminal, through multi-diameter compatibility, functional integration design and high-reliability process, adapts to the core requirements of new energy vehicle high-voltage DC systems for safe grounding, signal stability and space efficiency, significantly improving the efficiency and safety of the connection between charging equipment and vehicles.

[0009] As an improvement, the limiting protrusion of the plug part corresponding to the female end slot is provided with a limiting hole. The fitting design of the limiting hole and the limiting protrusion achieves precise positioning of the plug part through geometric constraints, avoiding lateral displacement caused by mechanical vibration or external impact.

[0010] As an improvement, the slotted terminal also includes a sealing ring for sealing connection between the slotted terminal and the sleeve. The sealing ring is sleeved and installed on the outer peripheral wall of the fixing part. A limiting ring is provided on the outer peripheral wall of the fixing part corresponding to the sealing ring, so that one side of the sealing ring abuts against one side of the limiting ring. The limiting ring forms a physical stop through the protruding structure, so that the sealing ring is automatically positioned to the design position during assembly, avoiding displacement or skew of the sealing ring due to human operation deviation.

[0011] As an improvement, the welding section is equipped with positioning holes for positioning and installing large-diameter cables, avoiding welding misalignment caused by axial movement of the cable.

[0012] As an improvement, the slotted terminal also includes a sealing plug. The terminal body has a cavity inside, and the sealing plug is placed inside the cavity so that the outer wall of the sealing plug abuts against the inner wall of the cavity. The sealing plug enhances the sealing performance of the terminal and prevents the internal cavity from being disturbed by the external environment.

[0013] As an improvement, the free ends of several elastic arms form an annular opening, and the fixing part is provided with several drainage holes along the circumference between the annular opening and the sealing plug. The drainage holes effectively prevent moisture accumulation and improve the moisture-proof performance of the terminal. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 A schematic diagram of a slotted DC PE copper tube terminal structure for a new energy vehicle with multiple outgoing cable structures.

[0016] Figure 2 A bottom view of a DC PE copper tube slotted terminal structure with multiple outgoing lines in a new energy vehicle.

[0017] Figure 3 A bottom view of the mating structure of a DC PE copper tube slotted terminal and female slot structure for a new energy vehicle with multiple outgoing cable structures.

[0018] Figure 4 This is a cross-sectional schematic diagram of a slotted DC PE copper tube terminal structure for a new energy vehicle with multiple outgoing lines.

[0019] The markings in the above figures are as follows: 1. Terminal body; 1.1. Clamping part; 1.1.1. Elastic arm; 1.2. Fixing part; 1.2.1. Limiting ring; 1.2.2. Drain hole; 1.3. Welding part; 1.3.1. Positioning hole; 1.4. Cavity; 2. Male end insert; 2.1. Mounting part; 2.2. Insertion part; 2.2.1. Limiting hole; 2.3. Connecting part; 3. Female end slot; 3.1. Limiting protrusion; 4. Sealing ring; 5. Sealing plug. Detailed Implementation

[0020] In this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] like Figures 1 to 4 As shown, a DC PE copper tube slotted terminal for new energy vehicles with multiple output structures includes a terminal body 1 and a male end insert 2. The terminal body 1 includes a clamping part 1.1, a fixing part 1.2 and a welding part 1.3 arranged in sequence along the axial direction for installing large-diameter cables, which are integrally arranged. Several elastic arms 1.1.1 are arranged circumferentially around one side of the clamping part 1.1. The male end insert 2 includes a mounting part 2.1 inserted into the welding part 1.3 and fixedly connected to the welding part 1.3, a plug-in part 2.2 arranged in parallel on one side of the mounting part 2.1 for plugging into several female end slots 3 and installing small-diameter cables, and a connecting part 2.3 connecting the mounting part 2.1 and the plug-in part 2.2. Preferably, the large-diameter cable is 6mm²-35mm² and the small-diameter cable is 0.5mm²-6mm².

[0022] The insertion part 2.2 is provided with a limiting hole 2.2.1 corresponding to the limiting protrusion 3.1 of the female end slot 3.

[0023] The slotted terminal also includes a sealing ring 4 for sealing connection between the slotted terminal and the sleeve. The sealing ring 4 is sleeved and installed on the outer peripheral wall of the fixing part 1.2. A limiting ring 1.2.1 is provided on the outer peripheral wall of the fixing part 1.2 corresponding to the sealing ring 4, so that one side of the sealing ring 4 abuts against one side of the limiting ring 1.2.1.

[0024] The welding part 1.3 is provided with positioning holes 1.3.1 for positioning and installing large-diameter cables.

[0025] The slotted terminal also includes a sealing plug 5. The terminal body 1 has a cavity 1.4 inside, and the sealing plug 5 is disposed inside the cavity 1.4, so that the outer wall of the sealing plug 5 abuts against the inner wall of the cavity 1.4.

[0026] The free ends of several elastic arms 1.1.1 form an annular opening, and the fixing part 1.2 has several drainage holes 1.2.2 arranged circumferentially between the annular opening and the sealing plug 5.

[0027] Using copper pipes with an outer diameter of 8mm, the copper pipes are first reinforced, and then machined with beveled openings, drainage holes 1.2.2, stamped positioning holes 1.3.1, or stamped rivet nut holes. Then, the welding part 1.3 and the male end insert 2 are flattened together using tooling positioning and flattening equipment. Next, the clamping part 1.1 is evenly split into 4 pieces with a depth of 17mm using a grooving equipment, forming a grooved structure, i.e., elastic arm 1.1.1. Then, the elastic arm 1.1.1 is squeezed and narrowed to a throat diameter of φ5.8mm using a closing equipment to form a flat welding area. The grooved terminal is then electroplated, and a rubber sealing plug 5 is inserted into the cavity 1.4 from the opening to prevent water accumulation inside the terminal.

[0028] Large-diameter cables of 6mm²-35mm² can be over-welded to the welding part 1.3, or the plug part 2.2 can be inserted into the female end slot 3 which is compatible with small-diameter cables of 0.5mm²-6mm².

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A slotted DC PE copper tube terminal with multiple outgoing line structures for new energy vehicles, characterized in that: include The terminal body includes a clamping part, a fixing part and a welding part that are integrally arranged in sequence along the axial direction, and a welding part that is flat for installing large-diameter cables. A number of elastic arms are arranged circumferentially around one side of the clamping part. The male connector includes, in sequence, a mounting part that is inserted into and fixedly connected to the welding part, a plug-in part that is arranged in parallel on one side of the mounting part for plugging into several female slots and installing small-diameter cables, and a connecting part that connects the mounting part and the plug-in part.

2. The DC PE copper tube split slot terminal of a new energy vehicle multi-outlet structure according to claim 1, characterized in that: The plug portion is provided with a limiting hole for the limiting protrusion corresponding to the female end slot.

3. The DC PE copper tube split slot terminal of a new energy vehicle multi-outlet structure according to claim 1, characterized in that: The slotted terminal also includes a sealing ring for sealing connection between the slotted terminal and the sleeve. The sealing ring is sleeved and installed on the outer peripheral wall of the fixing part. A limiting ring is provided on the outer peripheral wall of the fixing part corresponding to the sealing ring, so that one side of the sealing ring abuts against one side of the limiting ring.

4. The DC PE copper tube split slot terminal of a new energy vehicle multi-wire structure according to claim 1, characterized in that: The welding section is provided with positioning holes for positioning and installing large-diameter cables.

5. The DC PE copper tube split slot terminal of a new energy vehicle multi-wire structure according to claim 1, characterized in that: The slotted terminal also includes a sealing plug. The terminal body has a cavity inside, and the sealing plug is disposed inside the cavity, such that the outer wall of the sealing plug abuts against the inner wall of the cavity.

6. The DC PE copper tube split slot terminal of a new energy vehicle multi-outlet structure according to claim 5, characterized in that: The free ends of several of the elastic arms form an annular opening, and the fixing part has several drainage holes arranged circumferentially between the annular opening and the sealing plug.

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