Electrical connectors

Abstract

This invention provides an electrical connector, including an insulating body and two first terminals held in the insulating body. The insulating body has a mating surface and two terminal slots extending forward through the mating surface. Each terminal slot corresponds to a first terminal. Each first terminal includes a first terminal piece and a second terminal piece accommodated in the terminal slot. The first terminal piece has a first contact portion, and the second terminal piece has a second contact portion. The first contact portion and the second contact portion together form a mating channel. The first contact portion is closer to the mating surface than the second contact portion. When a mating terminal is inserted into the mating channel, its contact sequence with the first and second contact portions is different, which helps to avoid corrosion and wear of the second terminal piece.

Description

Technical Field

[0001] This invention relates to electrical connectors, and more particularly to an electrical connector for transmitting power. Background Technology

[0002] For relevant prior art, please refer to the electrical connector assembly disclosed in US Patent Application US20240072490A1, which includes a male connector and a female connector that can be mated to each other. The male connector includes a first base and a plurality of male terminals fixed to the first base. The female connector includes a second base and a plurality of female terminals fixed to the second base. Each female terminal includes a pair of terminal plates, and each terminal plate has a contact portion. When the male connector and the female connector are mated, the male terminal is inserted between the pair of terminal plates and mates with the contact portion to transmit a power signal. However, the pair of contact portions of the pair of terminal plates are flush in the mating direction, which may generate electrical sparks when the male terminal is inserted, causing corrosion and wear on the terminal.

[0003] Therefore, it is necessary to provide an improved electrical connector to address the aforementioned problems. Utility Model Content

[0004] The technical solution to be solved by this invention is to provide an electrical connector that is beneficial to improving the corrosion and wear of the terminals and increasing the service life of the electrical connector.

[0005] This application provides a technical solution: an electrical connector, including an insulating body and two first terminals fixed to the insulating body. The insulating body has a mating surface and two terminal slots extending forward through the mating surface. Each first terminal includes a first terminal piece and a second terminal piece accommodated in the terminal slot. The first terminal piece has a first contact portion, and the second terminal piece has a second contact portion. The first contact portion and the second contact portion together form a mating channel. The first contact portion is closer to the mating surface than the second contact portion.

[0006] Compared to existing technologies, this invention sets the first terminal in the form of first and second terminal pieces, and sets the first contact portion of the first terminal piece closer to the mating surface than the second contact portion of the second terminal piece. When the electrical connector mates with a mating connector, the first contact portion contacts the terminal of the mating connector earlier than the second contact portion, thereby generating an electrical spark, which helps to reduce the corrosion and wear of the second terminal piece. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of the electrical connector used in this invention.

[0008] Figure 2 This is a three-dimensional schematic diagram of the electrical connector from another angle.

[0009] Figure 3 for Figure 1 Top view.

[0010] Figure 4 For along Figure 1 A cross-sectional view along line AA in the middle.

[0011] Figure 5 for Figure 1 A 3D disassembly diagram.

[0012] Figure 6 for Figure 2 A 3D disassembly diagram.

[0013] Figure 7 for Figure 5 A three-dimensional view of the first terminal and the plug.

[0014] Figure 8 for Figure 7 Another perspective of partial 3D disassembly.

[0015] Figure 9 for Figure 7 A 3D disassembly diagram.

[0016] Figure 10 for Figure 9 A magnified view of a portion of the second terminal piece.

[0017] Figure 11 for Figure 9 A magnified view of the second terminal piece from another angle.

[0018] Component Symbol Explanation

[0019] Electrical connector 100, mating space 16, crease 226

[0020] Insulating body 10 Second terminal slot 17 Plate surface 227

[0021] Dating surface 11, First terminal 20, Dating arm 223

[0022] Terminal slot 12 First terminal piece 21 First bend 224

[0023] Docking channel 120, main body 212, second contact part 221

[0024] Receiving slot 121, arm 213, concave arc surface 220

[0025] Base 13 First contact portion 211 Second bending portion 225

[0026] Connecting part 14 Second terminal piece 22 Second terminal 23

[0027] Front edge 15, base 222, plug 30. Detailed Implementation

[0028] The following will combine Figures 1 to 11 This paper introduces the specific implementation methods of the electrical connector of this utility model.

[0029] Figure 1 This is a three-dimensional schematic diagram of the electrical connector 100 of this utility model, combined with... Figures 1 to 6 The electrical connector 100 includes an insulating body 10 and two first terminals 20 fixed to the insulating body 10. The insulating body 10 has a mating surface 11 and at least two terminal slots 12 extending forward through the mating surface 11. The insulating body 10 includes a base 13, a mating portion 14 protruding from the base 13, and an emerging edge portion 15 extending from the base 13 and surrounding the mating portion. A insertion space 16 is provided between the base 13 and the emerging edge portion 15. The insertion space 16 is used to mate with a mating connector (not shown). The terminal slots 12 are provided corresponding to the mating portion 14. Each terminal slot 12 corresponds to a first terminal 20. Each first terminal 20 includes a first terminal piece 21 and a second terminal piece 22 housed in the terminal slot 12. The first terminal piece 21 has a first contact portion 211, and the second terminal piece 22 has a second contact portion 221. The first contact portion 211 and the second contact portion 221 together form a mating channel 120. The first contact portion 211 is closer to the mating surface 11 than the second contact portion 221. In this embodiment, the first terminal 20 is a power terminal. Therefore, during use, a large current may generate electrical sparks, causing corrosion and wear of the first terminal. When the electrical connector 100 mates with the mating connector, the first contact portion 211 contacts the terminal (not shown) of the mating connector earlier than the second contact portion 221, thereby generating an electrical spark. That is, the contact sequence of the first and second electronic pieces 21 and 22 with the mating connector is different, which helps to reduce the corrosion and wear of the second terminal piece 22.

[0030] Combination Figure 4 , Figure 5 , Figure 7 and Figure 9 The terminal slot 12 contains a first terminal piece 21 and two second terminal pieces 22. The first terminal piece 21 includes two opposing first contact portions 211, and the two second terminal pieces 22 surround opposite sides of the first terminal piece 21. Each second terminal piece 22 includes two second contact portions 221, and the four second contact portions 221 are symmetrical to each other. The two first contact portions 211 are arranged facing each other, as shown in the figure. Figure 3Viewed from the mating direction, the width of each first contact portion 211 is smaller than the width of each second contact portion 221. Two first contact portions 211 and four second contact portions 221 together form a mating channel 120, allowing a mating terminal (not shown) to be inserted and mate with the first and second contact portions 211 and 221, thereby forming multi-point contact and achieving better mating performance. The mating terminal is inserted into the mating channel 120 from the mating surface 11, first contacting the first contact portion 211 closer to the mating surface 11, and then contacting the second contact portion 221, to protect the first terminal 20 and improve the service life of the electrical connector 100.

[0031] like Figure 10 and Figure 11 As shown, the second terminal piece 22 includes a base 222 and a mating arm 223 extending from the base 222, a first bent portion 224 extending from the mating arm 223 and bending inward toward the mating channel, a second contact portion 221 extending from the first bent portion 224, and a second bent portion 225 extending from the second contact portion 221 and bending outward; a radial direction perpendicular to the mating direction is defined, and the second contact portion 221 is provided with a concave arc surface 220 that is recessed outward in the radial direction. Providing the concave arc surface 220 helps to reduce the interference fit when the second contact portion 221 contacts the mating terminal, thereby reducing the contact force and reducing wear on the contact surface. The base 222 is provided with a crease 226 extending in the front-back direction to fold the base 222 into a plurality of angled plates 227. The second terminal piece 22 is provided with a plurality of docking arms 223 corresponding to the plates 227. The adjacent plates 227 are angled, which is beneficial for forming the docking channel 120. In this embodiment, the base 222 of each second terminal piece 22 is divided into two plates 227 by a crease 226, and each plate 227 extends a docking arm 223.

[0032] See Figure 9 The first terminal piece 21 includes a main body 212 and arm portions 213 extending from both ends of the main body 212, and the first contact portion 211 is disposed at the end of the arm portion 213. In this embodiment, the first terminal piece 21 is configured as a tuning fork.

[0033] like Figures 1 to 3 As shown, the insulating body 10 is further provided with a plurality of second terminal slots 17, and the electrical connector 100 further includes a second terminal 23 disposed in the second terminal slot 17. The second terminal 23 is a signal terminal, and the first terminal piece 21 is closer to the mating surface 11 than the second terminal 23. (See reference...) Figure 2 , Figures 4 to 6The terminal slot 12 penetrates the insulating body 10. A receiving groove 121 communicating with the terminal slot 12 is provided at the rear end of the terminal slot 12. The electrical connector 100 includes a plug 30 disposed in the receiving groove 121, which seals the gap between the first and second terminal pieces 21 and 22 and the terminal slot 12. The rear end of the base 13 is recessed with a filling groove 18. After the first 20 is assembled into the corresponding terminal slot and wires are soldered to its tail end, glue can be poured into the filling groove 18 to improve the waterproof performance of the electrical connector 100. The plug 30 serves to prevent glue from entering the terminal slot 12.

[0034] The above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of this utility model should still fall within the scope of this utility model patent.

Claims

1. An electrical connector, comprising an insulating body and two first terminals fixed thereon, the insulating body having a mating surface and two terminal slots extending forward through the mating surface, each first terminal including a first terminal piece and a second terminal piece accommodated in the terminal slot, the first terminal piece having a first contact portion, and the second terminal piece having a second contact portion, characterized in that: The first contact portion and the second contact portion together form a docking channel, with the first contact portion being closer to the docking surface than the second contact portion.

2. The electrical connector as described in claim 1, characterized in that: The terminal slot contains a first terminal piece and two second terminal pieces. The first terminal piece includes two first contact portions disposed opposite each other, and the two second terminal pieces surround the opposite sides of the first terminal piece.

3. The electrical connector as described in claim 2, characterized in that: Each of the second terminal pieces includes two second contact portions, and the four second contact portions are symmetrical to each other.

4. The electrical connector as described in claim 3, characterized in that: The two first contact portions are arranged facing each other, and from the docking direction, the width of each first contact portion is smaller than the width of each second contact portion.

5. The electrical connector as described in claim 2, characterized in that: The second terminal piece includes a base and a mating arm extending from the base, a first bent portion extending from the mating arm and bending into the mating channel, a second contact portion extending from the first bent portion, and a second bent portion extending from the second contact portion and bending outward; a radial direction perpendicular to the mating direction is defined, and the second contact portion has a concave arc surface that is recessed outward in the radial direction.

6. The electrical connector as described in claim 5, characterized in that: The base has a crease extending in the front-back direction to fold the base into several angled plates, and the second terminal piece has several mating arms corresponding to the plates.

7. The electrical connector as claimed in claim 2, characterized in that: The first terminal piece includes a main body and arms extending from both ends of the main body, and the first contact portion is disposed at the end of the arm.

8. The electrical connector as claimed in claim 1, characterized in that: The insulating body includes a base, a mating portion protruding from the base, and a front edge portion extending from the base and surrounding the mating portion. An insertion space is provided between the base and the front edge portion, and the terminal slot is provided corresponding to the mating portion.

9. The electrical connector as claimed in claim 8, characterized in that: The insulating body is provided with a plurality of terminal slots and a plurality of second terminal slots. The electrical connector includes a second terminal disposed in the second terminal slot. The first terminal is a power terminal and the second terminal is a signal terminal. The first terminal piece is closer to the mating surface than the second terminal.

10. The electrical connector as claimed in claim 1, characterized in that: The terminal slot extends through the insulating body, and a receiving groove communicating with the terminal slot is provided at the rear end of the terminal slot. The electrical connector includes a plug disposed in the receiving groove, and the plug blocks the gap between the first and second terminal pieces and the terminal slot.

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