CN-224217723-U - Connector device capable of reducing connection space

Abstract

The utility model relates to a connector device for reducing a connection space, and belongs to the technical field of battery connectors. The device comprises a binding post, a conductive nut and a press riveting nut, wherein a first wire is connected to the lateral side of a bending strip main body of the binding post through a wire interface, a fuse is fixed to the bottom of the binding post through a bolt, and the press riveting nut is connected with a second wire. Through binding post bending structure and fuse and nut's integrated design, realize two way wire vertical layout, reduce transverse space and occupy more than 50%. The device solves the problem that the wiring space of the upper cover of the sodium battery is insufficient due to the limitation of the bending radius of the lead, improves the space utilization rate and the connection reliability, and reduces the short circuit risk through the partition protection of the insulating layer.

Inventors

• ZHANG ZIYUAN
• QIU KEQI
• WANG FENGJIAO
• JIN XIAOPAN
• YU WENZHI
• YAN LINGLING
• DONG YANJUN
• ZHU KAIKAI
• SHEN HUI
• WANG RUIBEN

Assignees

• 浙江华宇钠电新能源科技有限公司

Dates

Publication Date

20260508

Application Date

20250604

Claims (9)

1. 1. The connector device for reducing the connection space is characterized by comprising a wiring terminal (1), wherein the wiring terminal (1) is fixedly arranged on a conductive nut (2) through bolt connection, the wiring terminal (1) comprises a bent strip-shaped main body (11) and a wire interface (12) protruding along the lateral direction of the strip-shaped main body (11), the wire interface (12) is connected with a first wire (31), the other end of the first wire (31) is welded with a metal ring (33) with a hole, the bottom of the strip-shaped main body (11) is fixedly connected with a fuse (4) through a bolt, the bottom of the fuse (4) is connected with a press-riveting nut (5) through a bolt, the press-riveting nut (5) is provided with a nut wire interface (51), the nut wire interface (51) is connected with a second wire (32), and the other end of the second wire (32) is connected with a sleeve ring (34) with the hole.
2. 2. The connector device for reducing connecting space according to claim 1, wherein the rivet nut (5) is provided with a threaded section center hole (52) and a connecting surface (53), and the fuse (4) is integrally formed with the connecting surface (53) through a mechanical crimping or welding process and then is fixed on the connecting terminal (1) through a bolt.
3. 3. A connector device for reducing a connecting space according to claim 2, wherein the fuse (4) is in close contact with the connecting surface (53) through a conductive material, and the clinch nut (5) is additionally provided with an insulating layer at a portion other than the threaded section center hole (52) and the connecting surface (53).
4. 4. A connector assembly with reduced connecting space according to claim 3, wherein the insulating layer is made of ceramic or high temperature resistant plastic to improve insulation and high temperature resistance.
5. 5. A connector device for reducing a connection space according to claim 1, wherein the first wire (31) is made of a copper wire or an aluminum wire, the copper wire has a cross-sectional area of not less than 2.5mm2, and the aluminum wire has a cross-sectional area of not less than 4mm2.
6. 6. A connector device for reducing a connection space according to claim 1, wherein the fuse (4) has a fuse-breaking current value 1.5 to 2 times the battery nominal current, the elongated body (11) is provided with an upper half portion (11 a), and an angle α between a long-side axis of the upper half portion (11 a) and an axial center line of the wire connection port (12) is equal to 90 °.
7. 7. The connector device for reducing connecting space according to claim 1, wherein the conductive nut (2) comprises an external main body (21) and a mounting platform (22), an internal nut section is arranged in the external main body (21) and is used for connecting an external electric appliance, and a fixing threaded hole (23) is arranged on the side surface of the mounting platform (22) and is used for fixing a wiring terminal.
8. 8. A connector device with reduced connecting space according to claim 1, wherein the strip body (11) has two perpendicular bending sections (13), each bending section (13) being rounded.
9. 9. A connector assembly with reduced space for connection according to claim 1, wherein the wire interface (12) is provided with a viewing hole on a side surface for viewing whether the wire end is fully inserted into the wire interface (12).

Description

Connector device capable of reducing connection space Technical Field The utility model belongs to the technical field of battery connectors, and particularly relates to a connector device capable of reducing a connection space. Background In the field of sodium ion battery module integration, optimization of the spatial layout of the battery connectors has been a technical difficulty. The conventional terminal has a parallel double-wire crimp structure, such as the publication CN118589259B. Limited by the wire bend radius and minimum length requirements, often results in excessive lateral space occupancy. In narrow areas such as the battery upper cover, the layout occupies other installation space of the electric components, and the high-density integration requirement is difficult to meet. In the prior art, although the wire harness is tried to be fixed through the bracket groove, space contradiction still exists, and the installation of the split type fuse is easy to cause the rise of contact resistance and the positioning deviation. Further research shows that the traditional metal connector is easy to generate oxidation failure under a high-temperature vibration environment, and the modularized design can improve the maintenance convenience, but the problem of space compression of double-path output is not solved. The existing crimping technology can improve the large-current transmission capability, but the space utilization rate is still lower due to parallel wiring, and the stability of a current path is insufficient due to split type fuse installation. Therefore, there is a need to develop a novel connector device, which can realize the breakthrough reduction of space occupation while ensuring stable current transmission through the innovation of a three-dimensional layout structure, and integrate the fuse function to improve the system reliability. Disclosure of utility model The utility model aims to provide a connector device for reducing the connection space, which solves the problem of insufficient layout space of an upper cover of a sodium battery caused by parallel outgoing lines of wires and limitation of bending radius by optimizing the integrated design of a wiring terminal structure and a fuse and a press-riveting nut, realizes vertical compact layout of double-path wires, remarkably reduces the occupation of transverse space, improves the connection reliability and insulation safety, and meets the requirement of high-integration assembly of the battery. The utility model provides a reduce connector device in connection space, including binding post, binding post passes through bolted connection and fixes on conductive nut, binding post is including the rectangular main part of bending and along the bellied wire interface of rectangular main part side direction, wire interface connection first wire, first wire other end welding foraminiferous metal ring, rectangular main part bottom passes through bolted connection fixed fuse, the fuse bottom has the press rivet nut through bolted connection, press rivet nut is equipped with nut wire interface, nut wire interface connection second wire, the bell and spigot joint ring of second wire other end connection foraminiferous. The three-dimensional layout is formed by the bent strip main body and the wire interfaces with the protruding side faces, the traditional parallel outgoing wires are optimized into vertical two-way output, and the occupation of the transverse space is reduced by more than 50%. The problem of the upper cover of sodium cell is because of the layout space that lead bending radius and length restriction lead to is not enough is solved, the inside highly integrated assembly demand of adaptation battery. In operation, the connector is connected with an external load to supply power to an external electric appliance, the sleeve ring is connected with the battery module to take power, current flows from the battery module to the fuse and the wiring terminal to be divided into two branches, one branch supplies power to the external electric appliance of the battery through the conductive nut, and the other branch supplies power to the internal protection board of the battery through the first lead and the metal ring. The utility model provides a reduce connector device in connection space, presses and rivets the nut and be equipped with screw thread section centre bore, presses and rivets the nut and be equipped with the junction surface, and the fuse passes through mechanical crimping or welding technology and junction surface integrated into one piece, and the rethread bolt is fixed in on the binding post. The fuse and the rivet pressing nut form an integrated conductive structure through mechanical crimping/welding, so that the contact resistance is reduced to below 0.5mΩ, and poor contact caused by split assembly is avoided. And the risk of positioning deviation when the traditional fuse is independently installed is eliminated