Large-current laminated staggered slot terminal and connector applying same

Abstract

The utility model discloses a large-current laminated staggered slot terminal and a connector using the same. The plugging terminal comprises two outer elastic sheets, two inner elastic sheets, a copper bar and a plurality of fasteners. The outer elastic piece is made of composite materials, the outer side of the outer elastic piece is a high-elasticity base layer, the inner side of the outer elastic piece is a high-current-carrying contact conducting layer, the outer side face of the inner elastic piece is attached to the outer elastic piece, and inner contact elastic teeth at the front end of the inner elastic piece are located in the outer gap openings respectively. The first contact point positions of the outer contact elastic teeth and the second contact point positions of the inner contact elastic teeth are double-row front-back staggered contact point positions; the two inner elastic sheets are symmetrically attached to the upper surface and the lower surface of the end of the copper bar and are connected through a fastener to form a slot terminal. The utility model has the advantages of good current-carrying performance and supporting performance, long service life, low cost, improved plugging effect and high assembly efficiency.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and particularly to a large-current laminated misaligned slot terminal and a connector applying the same. Background Art

[0002] With the development of the new energy field, large-current electrical connectors have been widely used. For example, CN217215206U, a multi-layer elastic sheet staggered distributed jack structure and connector, mainly includes two inner elastic sheets, two outer elastic sheets, two support elastic sheets and a base copper row. Among them, both the inner elastic sheet and the outer elastic sheet respectively include two different structures. One of them is that there is a protrusion at the riveting hole position, and the other is that the riveting position is a larger hole. The protrusion and the large hole are used for mutual cooperation and guidance. Its defects are as follows: First, the product structure is complex, involving a large number of part types and quantities, the assembly is complex, the cost is high, and the assembly efficiency is low; Second, the structures of the inner elastic sheet and the outer elastic sheet are different, and it is easy to mix materials during assembly, and there are easy assembly defects; Third, the outer support elastic sheet is used to support the elastic teeth of the inner elastic sheet, and its support is a line contact of a horizontal straight line between the sheet and the arc surface. After multiple insertions and extractions, the problem of large attenuation of the insertion and extraction force appears in the public welfare. Summary of the Utility Model

[0003] In order to solve one or more of the above problems, the utility model provides a large-current laminated misaligned slot terminal and a connector applying the same.

[0004] According to one aspect of the utility model, the large-current laminated misaligned slot terminal includes: two outer elastic sheets, two inner elastic sheets, a copper row and a plurality of fasteners;

[0005] The outer elastic sheet is made of a composite material, the outer side thereof is a high-elastic base layer and the inner side thereof is a high-current-carrying contact conduction layer. A plurality of outer contact elastic teeth are provided at the front end of the first body of the outer elastic sheet, and an outer gap is provided between adjacent outer contact elastic teeth;

[0006] The outer side of the second body of the inner elastic sheet is attached to the first body. The inner contact elastic teeth at the front end of the second body are respectively located in the outer gaps, the inner gaps between adjacent inner contact elastic teeth are located in the outer contact elastic teeth, and the first contact points of the outer contact elastic teeth and the second contact points of the inner contact elastic teeth are misaligned front and back to form a double-row misaligned contact point;

[0007] The upper and lower surfaces of the end of the copper row are symmetrically attached to the two second bodies;

[0008] A plurality of fasteners connect the copper row, the first body and the second body into a slot terminal.

[0009] In some embodiments, the outer elastic sheet is made of a copper-aluminum composite material, the base layer is made of a high-elastic and high-strength metal, and the contact conduction layer is made of a copper alloy or pure copper with high electrical conductivity.

[0010] In some embodiments, on both sides of the outer gap opening, lateral support blocks protrude symmetrically at the middle position of the outer contact elastic teeth, and the inner contact elastic teeth are located within the outer gap opening and are attached to the two lateral support blocks on the outer side.

[0011] In some embodiments, the first contact point is located outside the inner gap opening, and the second contact point is located within the outer gap opening.

[0012] In some embodiments, a plurality of outer contact elastic teeth are equidistantly arranged at the front end of the first body, and a plurality of inner contact elastic teeth are equidistantly arranged at the front end of the second body.

[0013] In some embodiments, the widths of both the outer gap opening and the inner gap opening gradually increase from the inside to the outside.

[0014] In some embodiments, the fastener is a rivet. The fastener sequentially passes through the first vertical through-hole of the upper first body, the second vertical through-hole of the second body, the third vertical through-hole of the copper busbar, and the second vertical through-hole of the lower second body, and the first vertical through-hole of the first body and is riveted into one body.

[0015] In some embodiments, the snap buckle in the middle of the first body is connected to the card slot of the housing.

[0016] In some embodiments, the rear end of the copper busbar is any one of a longitudinal wiring terminal, a horizontal bending surface wiring terminal, a vertical bending surface wiring terminal, and a bushing wiring terminal.

[0017] The beneficial effects of this large-current laminated misaligned slot terminal are as follows: First, the outer elastic piece is made of a composite material. The contact conduction layer can be in good contact with the inner elastic teeth, improving the current-carrying capacity of the slot while ensuring sufficient contact normal pressure. The outer elastic teeth play a role in limiting the inner elastic teeth and providing additional normal pressure, meeting both the current-carrying performance and the support performance, having a beneficial service life, reducing the material cost, and reducing the number of parts used, significantly reducing the overall cost of the slot. And the material on the outer side of the elastic piece is generally a relatively inexpensive stainless steel material, saving the material cost. Second, it has a more excellent elastic tooth support structure. The inner and outer elastic teeth adopt double-row misaligned contact points in the insertion direction, providing a large-area support for the inner contact elastic teeth, greatly improving the support performance, dispersing the insertion force when the insertion piece and the slot component are inserted, thereby reducing the peak value of the insertion force and improving the insertion and extraction effect. Third, the two outer elastic pieces and the two inner elastic pieces have the same structure, without distinguishing the structural differences, increasing the part universality, thus reducing the part cost. At the same time, it can also avoid situations such as material mixing during assembly, improving the assembly efficiency, and avoiding assembly defects caused by assembly errors.

[0018] The present utility model also provides a connector, including any one of the above-mentioned large-current stacked misaligned socket terminals. The beneficial effects are as follows: This setting can achieve stable plug-in contact, has good electrical conductivity, low cost, and a long service life. Description of the Drawings

[0019] Figure 1 It is a three-dimensional schematic diagram of a large-current stacked misaligned socket terminal according to an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 the front view schematic diagram of the shown large-current stacked misaligned socket terminal;

[0021] Figure 3 is Figure 1 the three-dimensional schematic diagram of the shown outer elastic piece;

[0022] Figure 4 is Figure 1 the three-dimensional schematic diagram of the shown inner elastic piece;

[0023] Outer elastic piece 1, first body 10, first vertical through hole 100, base layer 11, contact conduction layer 12, outer contact elastic teeth 13, first contact point 131, outer gap opening 14, side support block 15, elastic buckle 16;

[0024] Inner elastic piece 2, second body 20, second vertical through hole 200, inner contact elastic teeth 21, second contact point 211, inner gap opening 22;

[0025] Copper row 3; fasteners 4. Detailed Embodiment

[0026] The present utility model will be further described in detail below with reference to the drawings. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0027] Figures 1 to 4 It schematically shows a large-current stacked misaligned socket terminal according to an embodiment of the present utility model. As shown in the figure, the large-current stacked misaligned socket terminal includes: two outer elastic pieces 1, two inner elastic pieces 2, a copper row 3, and several fasteners 4;

[0028] The outer elastic piece 1 is made of a composite material, with a high-elasticity base layer 11 on its outer side and a high-current-carrying contact conduction layer 12 on its inner side. The outer elastic piece 1 is preferably made of a copper-aluminum composite material. The base layer 11 is made of a metal with high elasticity and high strength, and the metal material is preferably stainless steel. The contact conduction layer 12 is made of a copper alloy with high conductivity or pure copper, and the copper alloy is preferably red copper. Among them, the contact conduction layer 12 is used to contact the tolerance pin to transfer current. A plurality of outer contact elastic teeth 13 are provided at the front end of the first body 10 of the outer elastic piece 1, and an outer gap opening 14 is provided between adjacent outer contact elastic teeth 13.

[0029] The outer side of the second body 20 of the inner elastic piece 2 is attached to the first body 10. The inner contact elastic teeth 21 at the front end of the second body 20 are respectively located in the outer gap openings 14. The inner gap openings 22 between adjacent inner contact elastic teeth 21 are located in the outer contact elastic teeth 13. The first contact points 131 of the outer contact elastic teeth 13 and the second contact points 211 of the inner contact elastic teeth 21 are misaligned front and back, forming a double-row misaligned contact point. Preferably, the length of the outer contact elastic teeth 13 is greater than that of the inner contact elastic teeth 21; the first contact point 131 is located outside the inner gap opening 22, and the second contact point 211 is located inside the outer gap opening 14.

[0030] The upper and lower surfaces of the end of the copper row 3 are symmetrically attached to the two second bodies 20;

[0031] A plurality of fasteners 4 connect the copper row 3, the first body 10, and the second body 20 into a socket terminal.

[0032] The beneficial effects of this high-current laminated misaligned socket terminal are as follows: First, the outer elastic piece 1 is made of a composite material. The contact conduction layer 12 can be in good contact with the inner elastic teeth, improving the current-carrying capacity of the socket while ensuring sufficient contact normal pressure. The outer elastic teeth play a role in limiting the inner elastic teeth and providing additional normal pressure. While meeting the current-carrying performance and support performance, it has a beneficial service life, reduces the material cost, and reduces the number of parts used, significantly reducing the overall cost of the socket; and the material on the outer side of the elastic piece is generally a relatively cheap stainless steel material, saving the material cost. Second, it has a more excellent elastic tooth support structure. The inner and outer elastic teeth adopt double-row misaligned contact points in the insertion direction, providing a large-area support for the inner contact elastic teeth, significantly improving the support performance, and being used to disperse the insertion force when the insertion piece and the socket component are inserted, thereby reducing the peak value of the insertion force and improving the plugging and unplugging effect. Third, the two outer elastic pieces 1 and the two inner elastic pieces 2 have the same structure, without distinguishing the structural differences, increasing the part universality, thereby reducing the part cost. At the same time, it can also avoid situations such as material mixing during assembly, improving the assembly efficiency, and avoiding assembly defects caused by assembly errors.

[0033] Preferably, on both sides of the outer gap opening 14, at the middle position of the outer contact elastic teeth 13, lateral supporting blocks 15 protrude symmetrically, and the inner contact elastic teeth 21 are located within the outer gap opening 14 and fit against the two lateral supporting blocks 15 on the outside. The beneficial effect is that the lateral supporting blocks 15 can strengthen the support for the inner contact elastic teeth 15, ensuring sufficient normal pressure and avoiding the problem of excessive attenuation of the insertion and extraction force caused by multiple insertions and extractions.

[0034] Preferably, a plurality of outer contact elastic teeth 13 are provided at equal intervals at the front end of the first body 10, and a plurality of inner contact elastic teeth 21 are provided at equal intervals at the front end of the second body 20. The beneficial effect is that this setting can make the supporting force evenly distributed.

[0035] Preferably, the tooth widths of the outer contact elastic teeth 13 and the inner contact elastic teeth 21 gradually decrease from the inside to the outside; the outer gap opening 14 and the inner gap opening 22 are in a U shape, and the gap widths of the outer gap opening 14 and the inner gap opening 22 gradually increase from the inside to the outside. The beneficial effect is that this setting facilitates insertion and installation.

[0036] Furthermore, the fastener 4 is a rivet. The fastener 4 sequentially passes through the first vertical through hole 100 of the upper first body 10, the second vertical through hole 200 of the second body 20, the third vertical through hole of the copper busbar 3, and then passes through the second vertical through hole 200 of the lower second body 20 and the first vertical through hole 100 of the first body 10 and is riveted into one body. Preferably, the first body 10 is provided with four first vertical through holes 100 arranged in a rectangular array, the second body 20 is provided with four second vertical through holes 200 arranged in a rectangular array, and the end of the copper busbar 3 is provided with four third vertical through holes arranged in a rectangular array. The beneficial effect is that this setting provides firm connection and convenient installation.

[0037] Furthermore, a spring buckle 16 is also provided in the middle of the first body 10. The spring buckle 16 is connected to the card slot of the housing, thereby clamping the socket terminal in the housing. Preferably, the spring buckle 16 is formed by cutting three sides of a rectangular opening in the middle of the first body 10 and bending the plate upward at an angle toward the connected side. The beneficial effect is that this setting can have good external connection performance.

[0038] Furthermore, the rear end of the copper busbar 3 is any one of a longitudinal wiring end, a horizontal bending surface wiring end, a vertical bending surface wiring end, and a bushing wiring end. The longitudinal wiring end structure is that the first body 10 is a flat plate structure; the horizontal bending surface wiring end is that a horizontal bending plate is integrally provided on the side of the rear end of the first body 10, and the wiring hole is on the horizontal bending plate; the vertical bending surface wiring end is that a vertical bending plate is integrally provided upward at the rear end of the first body 10, and the wiring hole is on the vertical bending plate; the bushing wiring end is that a wire clamping hole is integrally provided on the rear side of the first body 10. The beneficial effect is that it can be compatible with different types of copper busbars.

[0039] The present utility model further provides a connector, which includes the large-current stacked misaligned socket terminals of any one of the above, and the socket terminals are snap-fitted and fixed in the housing. The beneficial effects are as follows: This setting can achieve stable plug-in contact, has good electrical conductivity, low cost, and a long service life.

[0040] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A large-current laminated misaligned socket terminal, characterized in that, Including: two outer elastic pieces (1), two inner elastic pieces (2), a copper busbar (3), and several fasteners (4); The outer elastic piece (1) is made of a composite material, with a high-elasticity base layer (11) on the outside and a high-current-carrying contact conduction layer (12) on the inside. At the front end of the first body (10) of the outer elastic piece (1), several outer contact elastic teeth (13) are provided, and an outer gap opening (14) is provided between adjacent outer contact elastic teeth (13); The outer side of the second body (20) of the inner elastic piece (2) is attached to the first body (10). The inner contact elastic teeth (21) at the front end of the second body (20) are respectively located within the outer gap opening (14). The inner gap openings (22) between adjacent inner contact elastic teeth (21) are located within the outer contact elastic teeth (13). The first contact points (131) of the outer contact elastic teeth (13) and the second contact points (211) of the inner contact elastic teeth (21) are offset front and back, forming a double-row offset contact point; The upper and lower surfaces of the end of the copper busbar (3) are symmetrically attached to the two second bodies (20); Several of the fasteners (4) connect the copper busbar (3), the first body (10), and the second body (20) into a socket terminal.

2. The large-current laminated misaligned socket terminal according to claim 1, characterized in that The outer elastic piece (1) is made of a copper-aluminum composite material. The base layer (11) is made of a metal with high elasticity and high strength, and the contact conduction layer (12) is made of a copper alloy or pure copper with high conductivity.

3. A large-current laminated misaligned socket terminal according to claim 1, characterized in that On both sides of the outer gap opening (14), at the middle position of the outer contact elastic teeth (13), lateral support blocks (15) protrude symmetrically. The inner contact elastic teeth (21) are located within the outer gap opening (14) and are attached to the two outer lateral support blocks (15).

4. A large current laminated misaligned socket terminal according to claim 1, wherein The first contact point (131) is located outside the inner gap opening (22), and the second contact point (211) is located within the outer gap opening (14).

5. A large-current laminated misaligned slot terminal according to claim 1, wherein Several of the outer contact elastic teeth (13) are provided at equal intervals at the front end of the first body (10), and several of the inner contact elastic teeth (21) are provided at equal intervals at the front end of the second body (20).

6. The large current laminated misaligned socket terminal according to claim 5, characterized in that, The widths of the outer gap opening (14) and the inner gap opening (22) both gradually increase from the inside to the outside.

7. The large-current stacked misaligned socket terminal according to claim 1, characterized in that The fastener (4) is a rivet. The fastener (4) sequentially passes through the first vertical through-hole (100) of the upper first body (10), the second vertical through-hole (200) of the second body (20), the third vertical through-hole of the copper busbar (3), the second vertical through-hole (200) of the lower second body (20), and the first vertical through-hole (100) of the first body (10) and is riveted into one body.

8. The large current laminated misaligned socket terminal according to claim 1, characterized in that, The elastic buckle (16) in the middle of the first body (10) is connected to the card slot of the housing.

9. The large-current laminated misaligned socket terminal according to claim 1, wherein The rear end of the copper busbar (3) is any one of a longitudinal wiring terminal, a horizontal bending surface wiring terminal, a vertical bending surface wiring terminal, and a bushing wiring terminal.

10. A connector, characterized in that, Including the high-current laminated offset socket terminal according to any one of claims 1 to 9.

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