A connector and battery box resistant to large current sparking

Abstract

The utility model relates to plug connector technical field, concretely is a kind of plug connector of high-current sparking resistance. Plug connector male end is equipped with two blade spring leaf and several male end signal spring leaf, one end of blade spring leaf abuts overcurrent spring leaf, overcurrent spring leaf includes connecting portion, four outer cantilever, four inner cantilever and sparking portion, the bottom of connecting portion is flat, the left and right ends of connecting portion are bent outward and are connected two outer cantilevers and two inner cantilevers respectively, outer cantilever and inner cantilever are set left and right symmetrical, the top end of two outer cantilevers of the side of connecting portion is bent inward and extends and integrally connects sparking portion, sparking portion is arc-shaped and extends outward, inner cantilever is first bent inwardly obliquely, then straightly extends and then extends outward, the endpoint of inner cantilever does not exceed the bottom end of sparking portion of outer cantilever. Compared with prior art, by increasing contact area, effectively improve overcurrent capacity, reduce the contact area of high-current transient impact, improve the overall life of spring leaf.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically a connector and battery box resistant to high current arcing. Background Technology

[0002] With the promotion of new energy sources and the emergence of more high-power applications, higher demands are being placed on the current-carrying capacity and anti-arcing performance of connectors. Existing connectors, under high-current instantaneous impact, experience localized temperature rise and increased contact resistance in the spring contacts, making them prone to arcing, leading to spring contact erosion and contact failure. Furthermore, increasing the number of contact points and improving current-carrying capacity are also urgent problems to be solved. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a connector resistant to high current arcing, comprising a female connector and a male connector, which are fastened together. The male connector is provided with two blade springs and several male signal springs. One end of each blade spring abuts against a current-carrying spring, and one end of each male signal spring abuts against a female signal spring. A spring fixing base plate is fixed to one side of the female connector, and an insertion cavity is provided on the other side of the female connector. The insertion cavity contains two first slots and several second slots. One side of each first slot corresponds to the outer contour of a blade spring, and the other side of each first slot corresponds to the outer contour of a current-carrying spring. One side of each second slot corresponds to the outer contour of a female signal spring. The other side of the second slot corresponds to the outer contour of the male signal spring. The overcurrent spring abuts against the spring fixing base plate through the first slot. The female signal spring passes through the spring fixing base plate through the first slot. The overcurrent spring includes a connecting part, four outer cantilevers, four inner cantilevers, and an ignition part. The bottom of the connecting part is flat. The left and right ends of the connecting part are bent outward and connected to two outer cantilevers and two inner cantilevers respectively. The outer cantilevers and inner cantilevers are symmetrically arranged. The tops of the two outer cantilevers on one side of the connecting part are bent inward and extended and integrally connected to the ignition part. The ignition part is arc-shaped and extends outward. The inner cantilevers are first bent inward at an angle and then extended straight outward. The end point of the inner cantilevers does not exceed the bottom end of the ignition part of the outer cantilevers.

[0004] The male end of the connector is connected to the female end of the connector with a groove, and a rubber ring is embedded in the groove.

[0005] The spring fixing base plate is provided with a first receiving cavity corresponding to the position of the overflow spring, and the spring fixing base plate is provided with a second receiving cavity corresponding to the position of the female end signal spring. The end of the first receiving cavity is provided with a stop part, and the center of the second receiving cavity is provided with a support protrusion and a through hole on one side.

[0006] The female signal spring includes an extension, a connecting ring, and two cantilever arms. One end of the extension is integrally connected to one side of the connecting ring. Two cantilever arms are symmetrically arranged on the other side of the connecting ring. The inner side of the two cantilever arms is provided with recessed buckles. The female signal spring is engaged with the male signal spring through the recessed buckles.

[0007] The width of one side of the first slot corresponding to the blade spring is smaller than the width of the other side of the first slot corresponding to the overcurrent spring, and the width of one side of the second slot corresponding to the male signal spring is smaller than the width of one side of the second slot corresponding to the female signal spring.

[0008] A battery box, including the aforementioned connector resistant to high current arcing.

[0009] Compared with the prior art, this utility model effectively improves the current carrying capacity by increasing the contact area; the arc-shaped ignition part prioritizes conduction, reduces the contact area of ​​the instantaneous impact of large current, improves the overall life of the spring, and the plug-in structure is compact, improving the vibration resistance. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of a connector designed to withstand high-current arcing; Figure 2 Exploded view of a connector designed to withstand high-current arcing; Figure 3 This is a schematic diagram of the female end of the connector; Figure 4 This is a schematic diagram of the flow reed; Figure 5 A schematic diagram of the structure of the base plate for fixing the reed; Figure 6 This is a schematic diagram of the structure of the signal spring at the female end; Referring to the attached diagram: 1. Female connector end; 2. Male connector end; 3. Spring fixing base plate; 4. Overcurrent spring; 5. Female signal spring; 6. Blade spring; 7. Male signal spring; 8. First slot; 9. Second slot; 10. Connecting part; 11. Outer cantilever; 12. Inner cantilever; 13. Ignition part; 14. Rubber ring; 15. First receiving cavity; 16. Second receiving cavity; 17. Extension part; 18. Connecting ring; 19. Cantilever; 20. Recessed buckle. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] like Figures 1 to 3A connector resistant to high current arcing includes a female connector 1 and a male connector 2, which are fastened together. The male connector 2 has two blade springs 6 and several male signal springs 7. One end of the blade spring 6 abuts against a current-carrying spring 4, and one end of the male signal spring 7 abuts against a female signal spring 5. A spring fixing base plate 3 is fixed to one side of the female connector 1, and an insertion cavity is provided on the other side of the female connector 1. The insertion cavity has two first slots 8 and several second slots 9. One side of the first slot 8 corresponds to the outer contour of the blade spring 6, and the other side of the first slot 8 corresponds to the outer contour of the current-carrying spring 4. One side of the second slot 9 corresponds to the outer contour of the female signal spring 5, and the other side of the second slot 9 corresponds to the outer contour of the male signal spring 7. The current-carrying spring 4 abuts against the spring fixing base plate 3 through the first slot 8, and the female signal spring 5 passes through the spring fixing base plate 3 through the first slot 8. Figure 4 The overcurrent spring 4 includes a connecting part 10, four outer cantilever arms 11, four inner cantilever arms 12, and an ignition part 13. The bottom of the connecting part 10 is flat. The left and right ends of the connecting part 10 are bent outward and connected to two outer cantilever arms 11 and two inner cantilever arms 12 respectively. The outer cantilever arms 11 and inner cantilever arms 12 are symmetrically arranged. The top ends of the two outer cantilever arms 11 on one side of the connecting part 10 are bent inward and extended to connect integrally with the ignition part 13. The ignition part 13 is arc-shaped and extends outward. The inner cantilever arms 12 are first bent inward at an angle, then extended straight and then outward. The end point of the inner cantilever arm 12 does not exceed the bottom end of the ignition part 13 of the outer cantilever arm 11. This ensures that the ignition part 13 makes contact first during the insertion process, and then the inner and outer cantilever arms provide multiple contact points, avoiding erosion caused by instantaneous high current, thereby reducing the overcurrent area.

[0013] like Figure 5 The spring fixing base plate 3 is provided with a first receiving cavity 15 corresponding to the position of the flow spring 4, and the spring fixing base plate 3 is provided with a second receiving cavity 16 corresponding to the position of the female end signal spring 5. The end of the first receiving cavity 15 is provided with a stop part, and the center of the second receiving cavity 16 is provided with a support protrusion and a through hole on one side.

[0014] like Figure 6 The female signal spring 5 includes an extension 17, a connecting ring 18, and two cantilever arms 19. One end of the extension 17 is integrally connected to one side of the connecting ring 18. Two cantilever arms 19 are symmetrically arranged on the other side of the connecting ring 18. The inner side of the two cantilever arms 19 is provided with recessed buckles 20. The female signal spring 5 is engaged and connected to the male signal spring through the recessed buckles 20.

[0015] The male end 2 of the connector is connected to the female end 1 of the connector with a groove, and a rubber ring 14 is embedded in the groove. The rubber ring 14 ensures that the connection of the connector meets the requirements of waterproof and dustproof.

[0016] The width of one side of the first slot 8 corresponding to the blade spring 6 is smaller than the width of the other side of the first slot 8 corresponding to the overcurrent spring 4, and the width of one side of the second slot 9 corresponding to the male signal spring 7 is smaller than the width of one side of the second slot 9 corresponding to the female signal spring 5.

[0017] A battery box including connectors resistant to high-current arcing.

[0018] During insertion, the blade spring 6 first contacts the ignition part 13. After further insertion, the outer cantilever 11 and the inner cantilever 12 are all compressed, realizing high current transmission. At the same time, the female end signal spring 5 is fastened to the male end signal spring 7 by the recessed buckle 20, completing the signal connection. The rubber ring 14 is compressed between the female end 1 and the male end of the connector to form a reliable waterproof.

Claims

1. A connector resistant to high current arcing, comprising a female connector terminal (1) and a male connector terminal (2), characterized in that: The female end (1) and male end (2) of the connector are fastened together. The male end (2) of the connector is provided with two blade springs (6) and several male signal springs (7). One end of the blade spring (6) abuts against the current-carrying spring (4), and one end of the male signal spring (7) abuts against the female signal spring (5). A spring fixing base plate (3) is fixed on one side of the female end (1) of the connector. An insertion cavity is provided on the other side of the female end (1). The insertion cavity is provided with two first slots (8) and several second slots (9). One side of the first slot (8) corresponds to the outer contour of the blade spring (6), and the other side of the first slot (8) corresponds to the outer contour of the current-carrying spring (4). One side of the second slot (9) corresponds to the outer contour of the female signal spring (5), and the other side of the second slot (9) corresponds to the outer contour of the male signal spring (7). The current-carrying spring (4) passes through the first slot (8). The abutting spring fixing base plate (3) and the female end signal spring (5) pass through the spring fixing base plate (3) through the first slot (8). The overcurrent spring (4) includes a connecting part (10), four outer cantilever (11), four inner cantilever (12) and an ignition part (13). The bottom of the connecting part (10) is flat. The left and right ends of the connecting part (10) are bent outward and connected to two outer cantilever (11) and two inner cantilever (12) respectively. The outer cantilever (11) and inner cantilever (12) are symmetrically arranged on the left and right. The top ends of the two outer cantilever (11) on one side of the connecting part (10) are bent inward and extended and integrally connected to the ignition part (13). The ignition part (13) is arc-shaped and extends outward. The inner cantilever (12) is first bent inward at an angle and then extended straight and then extended outward. The end point of the inner cantilever (12) does not exceed the bottom end of the ignition part (13) of the outer cantilever (11).

2. The connector resistant to high current arcing according to claim 1, characterized in that: The male end (2) of the connector is connected to the female end (1) of the connector with a groove, and a rubber ring (14) is embedded in the groove.

3. A connector resistant to high-current arcing according to claim 1, characterized in that: The spring fixing base plate (3) is provided with a first receiving cavity (15) corresponding to the position of the flow spring (4), and the spring fixing base plate (3) is provided with a second receiving cavity (16) corresponding to the position of the female end signal spring (5). The end of the first receiving cavity (15) is provided with a stop part, and the center of the second receiving cavity (16) is provided with a support protrusion and a through hole on one side.

4. A connector resistant to high-current arcing according to claim 1, characterized in that: The female signal spring (5) includes an extension (17), a connecting ring (18), and two cantilever arms (19). One end of the extension (17) is integrally connected to one side of the connecting ring (18), and two cantilever arms (19) are symmetrically arranged on the other side of the connecting ring (18). The inner side of the two cantilever arms (19) is provided with recessed buckles (20). The female signal spring (5) is engaged with the male signal spring through the recessed buckles (20).

5. A connector resistant to high-current arcing according to claim 1, characterized in that: The width of one side of the first slot (8) corresponding to the blade spring (6) is smaller than the width of the other side of the first slot (8) corresponding to the overcurrent spring (4), and the width of one side of the second slot (9) corresponding to the male signal spring (7) is smaller than the width of one side of the second slot (9) corresponding to the female signal spring (5).

6. A battery box, characterized in that: The connector includes the high-current arcing resistant connector as described in any one of claims 1-5.

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