Connecting device

By designing a connection device for plugs and sockets and utilizing the plug bolt mechanism and the welding structure of copper rings, the problem of low voltage level and insufficient stability in electrical connections between battery modules within a limited space was solved, achieving higher connection strength and electrical conductivity, and significantly improving rated voltage and withstand voltage.

CN223911958UActive Publication Date: 2026-02-13AMPHENOL CHANGZHOU ELECTRONICS
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Patent Information

Application Number
CN202520228741.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-02-13
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

The existing electrical connections between battery modules have low voltage levels and low stability in a limited space, and the space constraints of plugs and sockets are also significant.

Method used

A connection device is designed, including a plug and a socket. The plug is connected to the socket via a plug bolt mechanism. The lower end of the plug is provided with a plastic connector. The socket includes a copper busbar, a threaded post, and a copper ring, which are connected by welding wire. The threaded post has a groove. The plug bolt mechanism includes a rubber sleeve and a bolt head. The bottom of the threaded post has a chamfered surface to prevent rotation. The plastic connector engages with the copper ring to prevent rotation.

Benefits of technology

It improves connection strength and electrical conductivity, the plug bolt mechanism is detachable, the connection between the socket copper ring and copper busbar is more stable, the rated voltage can reach 1000V, the withstand voltage can reach 5000V, and the stability is significantly improved.

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Abstract

The utility model relates to the technical field of new energy connectors, in particular to a connecting device. The connecting device comprises a plug and a socket, the plug is connected with the socket through a plug bolt mechanism, the socket comprises a copper bar, a threaded column and a copper ring, a connecting hole is formed in the copper bar, the threaded column is connected to the copper bar from the lower portion of the connecting hole to the upper portion in an embedded mode, the threaded column is sleeved with the copper ring, and a groove is formed in the upper edge of the connecting hole and used for welding a welding wire. According to the connecting structure of the copper ring and the copper bar on the socket of the connecting device, the connecting strength and the electric conductivity are better and more stable, the rubber coating part is arranged on the bolt in the plug, damage is caused after improper force operation is encountered, the bolt head composed of the four stand columns is arranged in the rubber coating part, the bolt head is sleeved with the M6 sleeve, and therefore the connecting device is convenient to use. The bolt can be replaced, the rated voltage of the structure is 1000V, the withstand voltage of the structure can reach 5000V, and the stability is higher.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting seat, especially a connecting device. BACKGROUND

[0002] The connection between battery modules is the connection of the energy storage system and the energy box, and the purpose is to provide effective and stable and safe electrical connection in limited space. In the prior art, the plug and socket used for electrical connection have reached the current level, but the voltage level is low, and the space for matching the plug and socket is greatly limited, and the stability is not high. SUMMARY

[0003] The utility model aims at solving the above-mentioned defects, and provides a connecting device.

[0004] In order to overcome the defects in the background art, the utility model adopts the technical scheme that the connecting device includes a plug and a socket, the plug is connected with the socket through a plug bolt mechanism, the lower end of the plug is further provided with a plastic connecting piece, the socket includes a copper bar, a threaded column and a copper ring, the copper bar is provided with a connecting hole, the threaded column is implanted in the copper bar from below the connecting hole, the copper ring is sleeved on the threaded column, and the upper edge of the connecting hole is provided with a groove for welding a welding wire.

[0005] According to another embodiment of the utility model, the plug bolt mechanism further includes a rubber sleeve layer and a bolt, and the top of the bolt is provided with a bolt head composed of four vertical columns.

[0006] According to another embodiment of the utility model, the bottom of the threaded column is provided with a base, and the threaded column is further provided with an outer convex segment above the base, and the upper plane of the outer convex segment is an inclined surface.

[0007] According to another embodiment of the utility model, the threaded column is further provided with an inner concave surface one engaged with a convex surface one arranged on the inner side of the copper ring, for preventing the plug bolt mechanism from rotating under stress.

[0008] According to another embodiment of the utility model, the lowermost end of the plug bolt mechanism is further provided with a touch-proof insulating cover.

[0009] According to another embodiment of the utility model, the inner side of the plastic connecting piece is provided with a convex surface two around, engaged with an inner concave surface two arranged on the outer side of the copper ring, for preventing the plug from rotating.

[0010] The beneficial effect of the utility model is: the connecting structure of the copper ring and the copper bar on the socket of the connecting device makes the connecting strength and the electric conduction better and more stable, the bolt in the plug is provided with a rubber coating part, 4 stand columns in the rubber coating part are provided on the bolt head, through M6 sleeve, the bolt head is sleeved, the bolt can be replaced, the rated voltage of the structure is 1000V, the voltage resistance can reach 5000V, and the stability is higher. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model is further described below in combination with the drawings and examples.

[0012] Figure 1 It is the structural schematic diagram of the utility model;

[0013] Figure 2 It is the structural schematic diagram of the socket;

[0014] Figure 3 It is the structural schematic diagram of the plug bolt mechanism on the plug;

[0015] Figure 4 It is the structural schematic diagram of the sectional view of the socket;

[0016] Figure 5 It is the structural schematic diagram of the copper ring;

[0017] Figure 6 It is the structural schematic diagram of the plastic connecting piece;

[0018] Wherein: 1, socket, 2, plug bolt mechanism, 3, plug, 4, welding wire, 5, threaded column, 6, copper ring, 7, inner concave surface, 8, copper bar, 9, rubber coating layer, 10, bolt, 11, base, 12, outer convex section, 13, bevel, 14, touch-proof insulating cover, 15, plastic connecting piece, 16, convex surface one, 17, convex surface two, 18, inner concave surface two. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The embodiment in the basic utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0020] As Figures 1-4As shown, the figure includes plug 3 and socket 1, plug 3 is connected with socket 1 through plug bolt mechanism 2, the lower end of plug 3 is also provided with plastic connecting piece 15, socket 1 includes copper bar 8, threaded column 5, copper ring 6, copper bar 8 is provided with connecting hole, threaded column 5 is implanted from below the connecting hole to connect copper bar 8, copper ring 6 is implanted on copper bar 8 from above threaded column 5, the upper edge of connecting hole is provided with groove for welding welding wire 4.Threaded column 5 is implanted from below copper bar 8 to above, using crimping equipment to completely press threaded column 5 into place, copper ring 6 is implanted on copper bar 8 from above threaded column 5, using crimping equipment to completely press copper ring 6 into place, finally welding wire 4 is wound around the outer diameter of copper ring, and is sleeved in the groove provided on the upper edge of connecting hole, after welding wire 4 completely melts and cools, assembly is completed, and the stable transmission of electrical signal is also ensured.The connection structure of copper ring and copper bar on socket 1, and welding wire 4 reinforce the connection strength of copper ring 6 and copper bar 8, so that the connection strength and electrical conductivity are better and more stable.

[0021] Wherein, plug bolt mechanism 2 includes rubber sleeve layer 9 and bolt 10, the top of bolt 10 is composed of bolt head of four columns, and the structure is as Figure 3 As shown, when socket 1 and plug 3 are disassembled, improper force operation causes the head of rubber sleeve layer 9 to be damaged, since the bolt head structure composed of four columns is arranged inside rubber sleeve layer 9, M6 sleeve can be sleeved on rubber sleeve layer 9 or bolt head in the case of serious damage, the bolt is loosened, and the plug is disassembled.

[0022] Wherein, the bottom of threaded column 5 is provided with base 11, threaded column 5 is further provided with outer convex segment 12 above base 11, and the upper plane of outer convex segment 12 is chamfered surface 13.The setting of outer convex segment 12 enables threaded column 5 to be completely fixed on copper bar 8 after threaded column 5 is implanted from below copper bar 8 to above and completely pressed into place by using crimping equipment, without other auxiliary structures, and the setting of chamfered surface 13

[0023] Wherein, threaded column 5 is further provided with inner concave surface one 7, which is engaged with convex surface one 16 arranged on the inner side of copper ring 6, and the setting of inner concave surface one 7 is mainly used for preventing plug bolt mechanism 2 from rotating under stress.The inner side of plastic connecting piece 15 is provided with convex surface two 17, which is engaged with inner concave surface two 18 arranged on the outer side of copper ring 6, to prevent plug 3 from rotating.

[0024] Wherein, the lowermost end of plug bolt mechanism 2 is further provided with anti-touch insulation cover 14.Anti-touch insulation cover 14 extends out of plug shell by a part, and the space formed by the extension of anti-touch insulation cover 14 and the outer wall of shell together forms the contact with the socket, and ensures that the internal conductor of the plug cannot be removed.

[0025] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A connecting device comprising a plug (3) and a socket (1), the plug (3) being connected to the socket (1) by means of a plug bolt mechanism (2), the lower end of the plug (3) further being provided with a plastic connecting piece (15), characterized in that: The socket (1) comprises a copper bar (8), a threaded column (5) and a copper ring (6), the copper bar (8) is provided with a connecting hole, the threaded column (5) is implanted from below the connecting hole and connected to the copper bar (8), the copper ring (6) is sleeved on the threaded column (5), and the upper edge of the connecting hole is provided with a groove for welding a welding wire (4).

2. A coupling device as claimed in claim 1, characterised in that: The plug bolt mechanism (2) comprises a rubber-coated sleeve layer (9) and a bolt (10), and the top of the bolt (10) is composed of a bolt head formed by four vertical columns.

3. A coupling device as claimed in claim 1, characterised in that: The bottom of the threaded column (5) is provided with a base (11), and the threaded column (5) is further provided with an outer convex section (12) above the base (11), and the upper plane of the outer convex section (12) is a bevel (13).

4. A coupling device as claimed in claim 1, characterised in that: The threaded column (5) is further provided with an inner concave section (7) engaged with a convex section (16) arranged on the inner side of the copper ring (6), so as to prevent the plug bolt mechanism (2) from rotating under stress.

5. A coupling device as claimed in claim 1, characterised in that: The lowermost end of the plug bolt mechanism (2) is further provided with a touch-proof insulation cover (14).

6. A coupling device as claimed in claim 1, characterised in that: The inner side of the plastic connecting piece (15) is provided with a convex section (17) engaged with an inner concave section (18) arranged on the outer side of the copper ring (6), so as to prevent the plug (3) from rotating.