A high current connector

Abstract

The utility model discloses a kind of high current connectors, including male end and female end that can be inserted, both are locked and fixed by bolt nut after being inserted.The male end and the female end are respectively provided with the main body structure consisting of support, terminal fixing piece, isolator and locking frame, inside are configured two power terminals and multiple signal terminals, male end power terminal insertion end is the stepped cylindrical structure with detachable T type conducting head, female end power terminal socket end orifice inlay side portion recessed claw sleeve to clamp male end insertion end;First waterproof structure is formed by the first sealing ring with boss in the insertion part, and the second waterproof structure is formed by the second sealing ring in the male end wiring end;The convex point of the inside of male end insertion end and the foolproof groove of female end socket end constitute foolproof structure.The connector can realize the stable transmission of high current and signal, has good waterproofness, foolproofness and connection reliability, and male end power terminal insertion end is detachable, convenient to maintain, suitable for high reliability electric connection scene.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, specifically to a high-current connector. Background Technology

[0002] In industrial power transmission, heavy equipment power supply, and harsh outdoor environments, high-current connectors are core components ensuring stable power and signal transmission. Existing high-current connectors generally suffer from the following problems: Poor contact stability under high current loads can easily lead to overheating due to poor terminal contact, affecting transmission efficiency. 1. Insufficient waterproof performance; prone to short circuit faults in humid and watery environments, making it difficult to meet IP67 and above protection level requirements. Second, the lack of an effective foolproof structure makes it easy for the male and female ends to be reversed during installation, leading to terminal damage or circuit failure. Power terminals are mostly integrated structures, which require replacement of the entire unit when damaged, resulting in high maintenance costs. Third, it has weak mechanical impact and vibration resistance, and is prone to loosening under high-frequency vibration or external impact scenarios, which poses a safety hazard.

[0003] To address the aforementioned issues, this invention proposes a structurally optimized 220A high-current connector to improve current transmission stability, waterproof performance, and mechanical reliability, while reducing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a high-current connector that solves the problems of unstable high-current contact, insufficient waterproofing, easy mis-insertion during installation, high maintenance costs, and weak resistance to shock and vibration in existing connectors.

[0005] To solve the above technical problems, the present invention achieves this through the following solution: The present invention provides a high-current connector, including a male terminal and a female terminal that are connected by a mating connection to achieve electrical signal conduction, wherein the male terminal and the female terminal are locked and fixed by multiple locking members after being connected by a mating connection; The male end and the female end are connected by plugging to form a first waterproof structure; A foolproof structure is provided between the male end and the female end; The male terminal has two male power terminals and multiple male signal terminals, and the plug of the male power terminal is detachable. The female end has two female power terminals and multiple female signal terminals. The socket end of the female power terminal is provided with an annular groove, and a claw sleeve for clamping the male power terminal is embedded in the annular groove.

[0006] Furthermore, the public terminal also includes: The male end support has a first cavity that passes through both ends and a male end docking plate that is located on the outer side of the shell and extends outwards. The first cavity is provided with a first step. The male terminal fixing member, the male terminal isolating member, and the male terminal locking frame are sequentially installed into the first through cavity. The male terminal fixing member abuts against the first step, and the male terminal locking frame presses against the male terminal isolating member and is fixed to the rear end of the male terminal bracket. The mother end includes: The female end support has a second cavity that passes through both ends and a female end docking plate that is located on the outside of the shell and extends outwards. The second cavity is provided with a second step. The female terminal fixing member, the female end isolating member, and the female end locking frame are sequentially installed into the second through cavity. The female terminal fixing member abuts against the second step, and the female end locking frame presses against the female end isolating member and is fixed to the rear end of the female end bracket.

[0007] Furthermore, both the male terminal fixing member and the male terminal isolating member have male terminal positioning holes in their central regions for fixing the male signal terminal; Both the male terminal fixing component and the male terminal isolating component are provided with two male power terminal fixing holes, which are located on both sides of the male signal terminal positioning hole.

[0008] Furthermore, the male power terminal has a stepped cylindrical structure at the plug end and a horseshoe-shaped structure at the wiring end. The socket end of the female power terminal is cylindrical, and its wiring end is horseshoe-shaped.

[0009] Furthermore, the male power terminal has a snap-fit ​​hole at the plug end, which is used to fasten a conductive head with a T-shaped cross-section, and the outer end of the conductive head has a rounded convex structure. The claw sleeve is a cylindrical structure with a side hollowed-out shape and its side is concave inward.

[0010] Furthermore, the first waterproof structure includes: A recessed ring is provided on the outer side of the insertion end of the male end bracket; A first sealing ring is embedded in the concave ring, and the outer circumferential surface of the first sealing ring is provided with at least one convex ring.

[0011] Furthermore, the male end bracket has a second waterproof structure at its wiring terminal, which includes: A groove located on one side of the male end connector plate; A second sealing ring is embedded in the groove.

[0012] Furthermore, the female terminal fixing member and the female terminal isolating member are provided with a female terminal positioning hole for fixing the female terminal signal terminal in the middle area; Both the female terminal fixing component and the female isolation component are provided with two female power terminal fixing holes, which are located on both sides of the female signal terminal positioning hole.

[0013] Furthermore, the foolproof structure includes: A protrusion located on the inner side of the male end bracket insertion end; A foolproof groove is provided at the female end of the bracket. After the male end and the female end are connected by insertion, the protrusion slides into the foolproof groove.

[0014] Furthermore, the locking components are bolts and nuts, which lock and fix the male end mating plate and the female end mating plate in place.

[0015] Compared with the prior art, the beneficial effects of this utility model are: I. The high-current connector of this utility model has stable high-current transmission: the male conductive head is clamped by the claw sleeve of the female power terminal, and the contact area is increased by the round convex hull structure, which can stably carry high current, has high voltage resistance, and avoids the heat generation problem caused by poor contact.

[0016] II. The high-current connector of this utility model has excellent waterproof performance: the double waterproof structure meets the IP67 protection level.

[0017] III. The high-current connector of this utility model is easy to install and maintain: the foolproof structure avoids reverse docking, and the bolt locking method facilitates quick assembly and disassembly; the detachable conductive head of the male power terminal means that only the conductive head needs to be replaced after damage, reducing maintenance costs.

[0018] IV. The high-current connector of this utility model has high mechanical reliability: the bolt locking structure can withstand high-intensity impacts and high-frequency vibrations, and is suitable for harsh working conditions such as industrial and rail transportation. Attached Figure Description

[0019] Figure 1 This is a diagram showing the pre-interlocking connection state of the male and female terminals of this utility model.

[0020] Figure 2 This is an exploded view of the present utility model.

[0021] Figure 3 This is a perspective view of the male end of this utility model.

[0022] Figure 4 This is a perspective view of the connector of the public terminal of this utility model.

[0023] Figure 5 This is an exploded view of the female end of this utility model.

[0024] Figure 6This is a perspective view of the socket end of the female end of this utility model.

[0025] Figure 7 This is a perspective view of the female terminal of this utility model.

[0026] Figure 8 This is a cross-sectional view of the male and female ends of this utility model.

[0027] The following labels are used in the attached diagram: Male terminal-1, Female terminal-2, Male power terminal-11, Conductive head-12, Male locking frame-13, Male isolation component-14, Male terminal fixing component-15, Second sealing ring-16, Male bracket-17, First sealing ring-18, Male signal terminal-19, Female bracket-21, Claw sleeve-22, Female terminal fixing component-23, Female locking frame-24, Female isolation component-25, Female power terminal-26, Female signal terminal-28, Raised dot-171, Anti-fooling groove-211. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1: The specific structure of this utility model is as follows: Please refer to the appendix. Figure 1-8 The present invention provides a high-current connector, comprising a male terminal 1 and a female terminal 2 that are connected by a mating joint to enable electrical signal conduction. After the male terminal 1 and the female terminal 2 are connected by a mating joint, they are locked and fixed by multiple locking components. The male end 1 and the female end 2 are connected by plugging to form a first waterproof structure; A foolproof structure is provided between the male end 1 and the female end 2; The male terminal 1 has two male power terminals 11 and multiple male signal terminals 19, and the plug of the male power terminal 11 is detachable. The female end 2 has two female end power terminals 26 and multiple female end signal terminals 28. The socket end orifice of the female end power terminal 26 is provided with an annular groove, and a claw sleeve 22 for clamping the insertion end of the male end power terminal 11 is embedded in the annular groove.

[0031] The public terminal 1 also includes: The male end bracket 17 has a first through cavity that passes through both ends and a male end docking plate that is located on the outer side of the shell and extends outwards. The first through cavity is provided with a first step. The male terminal fixing member 15, the male terminal isolation member 14, and the male terminal locking frame 13 are sequentially installed into the first through cavity. The male terminal fixing member 15 abuts against the first step, and the male terminal locking frame 13 presses against the male terminal isolation member 14 and is fixed to the rear end of the male terminal bracket 17. The mother end 2 includes: The female end support 21 has a second cavity that passes through both ends and a female end docking plate that is located on the outer side of the shell and extends outwards. The second cavity is provided with a second step. The female terminal fixing member 23, the female terminal isolation member 25, and the female terminal locking frame 24 are sequentially installed into the second through cavity. The female terminal fixing member 23 abuts against the second step, and the female terminal locking frame 24 presses against the female terminal isolation member 25 and is fixed to the rear end of the female terminal bracket 21.

[0032] The male terminal fixing member 15 and the male terminal isolating member 14 are both provided with male terminal positioning holes for fixing the male terminal signal terminal 19 in the middle area; Both the male terminal fixing member 15 and the male terminal isolating member 14 are provided with two male power terminal fixing holes, which are located on both sides of the male signal terminal positioning hole.

[0033] The male power terminal 11 has a stepped cylindrical structure at the plug end and a horseshoe-shaped structure at the wiring end. The socket end of the female power terminal 26 is cylindrical, and its wiring end is horseshoe-shaped.

[0034] The male power terminal 11 has a snap hole at the insertion end, and a conductive head 12 with a T-shaped cross-section is snapped into the snap hole, and the outer end of the conductive head 12 has a round convex structure. The claw sleeve 22 is a cylindrical structure with a side hollowed-out shape and its side is concave inward.

[0035] The first waterproof structure includes: A recessed ring is provided on the outer side of the insertion end of the male end bracket 17; A first sealing ring 18 is embedded in the concave ring, and the outer peripheral surface of the first sealing ring 18 is provided with at least one convex ring.

[0036] The male terminal bracket 17 is provided with a second waterproof structure, which includes: A groove located on one side of the male end connector plate; A second sealing ring 16 is embedded in the groove.

[0037] The female terminal fixing member 23 and the female terminal isolation member 25 are provided with a female terminal positioning hole for fixing the female terminal signal terminal 28 in the middle area; Both the female terminal fixing member 23 and the female isolation member 25 are provided with two female power terminal fixing holes, which are located on both sides of the female signal terminal positioning hole.

[0038] The error-proof structure includes: A protrusion 171 is provided on the inner side of the insertion end of the male end bracket 17; The anti-foolproof groove 211 is provided at the socket end of the female end bracket 21. After the male end 1 and the female end 2 are connected by insertion, the protrusion 171 slides into the anti-foolproof groove 211.

[0039] The locking components are bolts and nuts, which lock and fix the male end mating plate and the female end mating plate. Example 2:

[0040] The following is the assembly process of the male and female ends of this utility model: 1. Assembly of the male terminal: Insert the male signal terminal 19 sequentially into the male signal terminal positioning holes of the male terminal fixing member 15 and the male terminal isolator 14 to ensure the terminal position is fixed; pre-connect the wire to the terminal of the male power terminal 11 (by crimping with a horseshoe-shaped structure or fixing with bolts), and insert its plug end into the male power terminal fixing holes of the male terminal fixing member 15 and the male terminal isolator 14, and then fasten the conductive head 12 into the buckle hole of the plug end; sequentially install the assembled male terminal fixing member 15 and the male terminal isolator 14 into the first through cavity of the male terminal bracket 17, so that the male terminal fixing member 15 abuts against the first step; install the male terminal locking frame 13 to press down the male terminal isolator 14, and fix it to the rear end of the male terminal bracket 17 with screws.

[0041] The first sealing ring 18 is embedded in the recess of the male terminal bracket 17, and the second sealing ring 16 is embedded in the groove of the terminal to complete the assembly of the male terminal 1.

[0042] II. Assembly of the female terminal: Insert the female terminal signal terminal 28 sequentially into the female terminal positioning holes of the female terminal fixing member 23 and the female terminal isolator 25 to ensure that the terminal position is fixed; pre-connect the wire to the terminal of the female terminal power terminal 26, insert its socket end into the female terminal fixing hole of the female terminal fixing member 23 and the female terminal isolator 25, and embed the claw sleeve 22 in the annular groove of the socket end hole; sequentially install the assembled female terminal fixing member 23 and the female terminal isolator 25 into the second through cavity of the female terminal bracket 21, so that the female terminal fixing member 23 abuts against the second step; install the female terminal locking frame 24 to press down the female terminal isolator 25, and fix it to the rear end of the female terminal bracket 21 with screws to complete the assembly of the female terminal 2.

[0043] 3. Mating and Locking of Male and Female Ends: Align the mating direction of male end 1 and female end 2, and align the protrusion 171 of male end bracket 17 with the anti-fooling groove 211 of female end bracket 21; slowly push male end 1 and female end 2, so that the protrusion 171 slides into the anti-fooling groove 211 until the male end mating plate and the female end mating plate are in contact. At this time, the conductive head 12 of male end power terminal 11 is inserted into the socket end of female end power terminal 26. The claw sleeve 22 clamps the conductive head 12 due to the concave structure on the side, and the male end signal terminal 19 and the female end signal terminal 28 make corresponding contact; pass the bolt through the mounting holes of male end mating plate and female end mating plate, and tighten with the nut to complete the locking and fixing.

[0044] IV. Effects after insertion: Electrical connection reliability: The conductive head 12 of the male power terminal 11 is in close contact with the claw sleeve 22 of the female power terminal 26. The concave structure on the side of the claw sleeve 22 provides continuous clamping force to ensure stable transmission of large current; the male signal terminal 19 and the female signal terminal 28 are precisely connected to ensure interference-free signal transmission.

[0045] Waterproof performance: After the male and female terminals are inserted, the first sealing ring 18 is squeezed between the mating surfaces of the male terminal bracket 17 and the female terminal bracket 21. The convex ring on its outer periphery enhances the sealing effect and achieves waterproofing at the insertion point. The second sealing ring 16 of the male terminal can fit against the external cable or equipment housing to prevent moisture from seeping in from the terminal.

[0046] Mistake prevention and mis-insertion prevention: The cooperation between the protrusion 171 and the mistake prevention groove 211 prevents the male and female terminals from being reversed or misaligned, protects the terminals from damage, and improves operational safety.

[0047] Structural stability: Bolts and nuts lock the male and female end plates together, and the internal locking frame fixes the terminal assembly, ensuring the overall structure remains stable under vibration, impact and other environments, and preventing loosening of the connection.

[0048] Convenience of maintenance: The male power terminal 11 has a detachable structure. If replacement or maintenance is required, the conductive head 12 or the terminal can be removed separately without disassembling the entire connector, thus reducing maintenance costs.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A high-current connector, comprising a male terminal (1) and a female terminal (2) for mating connection to achieve electrical signal conduction, characterized in that, The male end (1) and the female end (2) are connected by interlocking and then locked and fixed by multiple locking parts; The male end (1) and the female end (2) are connected by interlocking to form a first waterproof structure; A foolproof structure is provided between the male end (1) and the female end (2) and the plug end; The male terminal (1) has two male power terminals (11) and multiple male signal terminals (19), and the plug of the male power terminal (11) is detachable. The female end (2) has two female end power terminals (26) and multiple female end signal terminals (28). The socket end of the female end power terminal (26) is provided with an annular groove, and a claw sleeve (22) for clamping the plug end of the male end power terminal (11) is embedded in the annular groove.

2. A high-current connector according to claim 1, characterized in that, The public terminal (1) also includes: The male end support (17) has a first through cavity that passes through both ends and a male end docking plate that is located on the outer side of the shell and extends outwards. The first through cavity is provided with a first step. The male terminal fixing member (15), the male terminal isolation member (14), and the male terminal locking frame (13) are sequentially installed into the first through cavity. The male terminal fixing member (15) abuts against the first step, and the male terminal locking frame (13) presses against the male terminal isolation member (14) and is fixed to the rear end of the male terminal bracket (17). The mother end (2) includes: The female end support (21) has a second cavity that passes through both ends and a female end docking plate that is located on the outside of the shell and extends outwards. The second cavity is provided with a second step. The female terminal fixing member (23), the female isolation member (25) and the female locking frame (24) are sequentially installed into the second cavity. The female terminal fixing member (23) abuts against the second step, and the female locking frame (24) presses against the female isolation member (25) and is fixed to the rear end of the female bracket (21).

3. A high-current connector according to claim 2, characterized in that, The male terminal fixing member (15) and the male terminal isolation member (14) are both provided with male terminal positioning holes for fixing the male terminal signal terminal (19) in the middle area; Both the male terminal fixing member (15) and the male terminal isolation member (14) are provided with two male power terminal fixing holes, which are located on both sides of the male signal terminal positioning hole.

4. A high-current connector according to claim 2, characterized in that, The male power terminal (11) has a stepped cylindrical structure at the plug end and a horseshoe-shaped structure at the wiring end. The socket end of the female power terminal (26) is cylindrical, and its wiring end is horseshoe-shaped.

5. A high-current connector according to claim 4, characterized in that, The male power terminal (11) has a snap hole at the insertion end, and a conductive head (12) with a T-shaped cross-section is snapped into the snap hole. The outer end of the conductive head (12) is a round convex structure. The claw sleeve (22) is a cylindrical structure with a side hollowed-out shape and its side is concave inward.

6. A high-current connector according to claim 2, characterized in that, The first waterproof structure includes: A recessed ring is provided on the outer side of the insertion end of the male end bracket (17); The first sealing ring (18) is embedded in the concave ring, and the outer peripheral surface of the first sealing ring (18) is provided with at least one convex ring.

7. A high-current connector according to claim 2, characterized in that, The male end bracket (17) is provided with a second waterproof structure at its wiring terminal, the second waterproof structure comprising: A groove located on one side of the male end connector plate; A second sealing ring (16) is embedded in the groove.

8. A high-current connector according to claim 2, characterized in that, The female terminal fixing member (23) and the female terminal isolation member (25) are provided with a female terminal positioning hole for fixing the female terminal signal terminal (28) in the middle area; Both the female terminal fixing member (23) and the female isolation member (25) are provided with two female power terminal fixing holes, which are located on both sides of the female signal terminal positioning hole.

9. A high-current connector according to claim 2, characterized in that, The error-proof structure includes: A protrusion (171) is provided on the inner side of the insertion end of the male end bracket (17). The anti-fooling groove (211) is provided at the socket end of the female end bracket (21). After the male end (1) and the female end (2) are connected by insertion, the protrusion (171) slides into the anti-fooling groove (211).

10. A high-current connector according to claim 2, characterized in that, The locking components are bolts and nuts, which lock and fix the male end mating plate and the female end mating plate.

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