Plug connector, socket connector and cable assembly
By designing keyways and key ribs at the mating points of plug and socket connectors, the problem of the lack of foolproof function in existing connectors is solved, achieving better foolproof effect and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOXCONN INTERCONNECT TECHNOLOGY LTD
- Filing Date
- 2025-01-20
- Publication Date
- 2026-07-21
Smart Images
Figure CN122436752A_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a plug connector, a socket connector, and a cable assembly. [Background Technology]
[0002] Chinese utility model patent CN219760195U discloses a multi-interface high-power electrical connector, including a Barklip connector module, a cable module, and a power connector. The power connector includes a power connector insulating shell, and a first terminal and a second terminal inserted into the power connector insulating shell. However, this patent does not provide a detailed description of the specific structure of the power connector, nor does it consider more detailed practical application scenarios.
[0003] Therefore, it is necessary to modify existing plug and socket connectors to overcome the above-mentioned defects. [Summary of the Invention]
[0004] The purpose of this invention is to provide a plug connector, a socket connector, and a cable assembly having an improved keyway and snap-fit structure.
[0005] To achieve the above objectives, the present invention can adopt the following technical solution: a plug connector, comprising an insulating body and two terminal assemblies, wherein the insulating body is provided with a mating portion, the mating portion is provided with a mating surface and two mating holes penetrating the mating surface, the mating portion has a first long outer surface and a second long outer surface opposite to each other, and two short outer surfaces connecting the first and second long outer surfaces; the two terminal assemblies are respectively located in corresponding mating holes; characterized in that: the first long outer surface is provided with a first keyway, a second keyway and a third keyway recessed toward the second long outer surface and arranged in sequence, the second long outer surface is provided with a fourth keyway, a fifth keyway and a sixth keyway recessed toward the first long outer surface and arranged in sequence, the width of the second keyway is greater than the width of the fifth keyway, but the recess depth of the second keyway is less than the recess depth of the fifth keyway.
[0006] To achieve the above objectives, the present invention can adopt the following technical solution: a socket connector, comprising an insulating body and two columnar terminals, wherein the insulating body is provided with a mating surface and a mating cavity penetrating the mating surface, the mating cavity having a first long inner wall surface and a second long inner wall surface opposite to each other, and two short inner wall surfaces connecting the first and second long inner wall surfaces; the two columnar terminals are located within the mating cavity; characterized in that: the first long inner wall surface is provided with a first key rib, a second key rib and a third key rib protruding into the mating cavity, the second long inner wall surface is provided with a fourth key rib, a fifth key rib and a sixth key rib protruding into the mating cavity, the width of the second key rib is greater than the width of the fifth key rib, but the protrusion depth of the second key rib is less than the protrusion depth of the fifth key rib.
[0007] To achieve the above objectives, the present invention can adopt the following technical solution: a cable assembly, including a bus connector, a first plug connector and a second plug connector, a pair of first cables, and a pair of second cables. The bus connector includes an insulating body and two spring terminals. The insulating body has a mating groove that extends forward and vertically. The two spring terminals are respectively disposed on opposite sides of the mating groove. Each spring terminal includes a contact arm extending into the mating groove and a connecting portion. The first and second plug connectors each include an insulating body and two terminal assemblies. The insulating body has a mating portion with a mating surface and two mating holes penetrating the mating surface. The mating portion has a first long outer surface and a second long outer surface opposite to each other, and two short outer surfaces connecting the first and second long outer surfaces. One end of the first cable is connected to the spring terminal of the bus connector, and the other end is connected to the terminal assembly of the first plug connector. One end of the second cable is connected to the spring terminal of the bus connector, and the other end is connected to the terminal assembly of the second plug connector.
[0008] Compared with the prior art, the present invention has the following advantages: the keyway and key rib structure of the present invention, while satisfying the error-proof function, has a more perfect appearance and better error-proof function. [Attached Image Description]
[0009] Figure 1 This is a perspective view of the electrical connector assembly of the present invention, wherein the two connectors are in a separated state.
[0010] Figure 2 yes Figure 1 A three-dimensional view of the electrical connector assembly from another angle.
[0011] Figure 3 yes Figure 1 Exploded 3D view of the plug connector.
[0012] Figure 4 yes Figure 3 An exploded 3D view of the plug connector from another angle.
[0013] Figure 5 yes Figure 1 Exploded 3D view of the socket connector.
[0014] Figure 6 In the middle, (a) is Figure 1 A schematic diagram of the mating surfaces of the plug connector, (b) is... Figure 2 A schematic bottom view of the mating surfaces of the socket connector to clearly show the shape matching between the two.
[0015] Figure 7 This is a perspective view of another electrical connector assembly of the present invention.
[0016] Figure 8 is Figure 7 A schematic diagram of the mating surface of the plug connector in
[0017] Figure 9 In Figure 2 a schematic diagram of the mating surface of the socket connector in Figure 7 a schematic diagram of the mating surface of the socket connector in
[0018] Figure 10 is a schematic diagram of the cable assembly of the present invention.
[0019] Figure 11 is Figure 10 a perspective view of the busbar connector in
[0020] Figure 12 is Figure 11 a perspective view of two elastic terminal pieces and a cable in
[0021] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.
Specific Embodiments
[0022] Refer Figures 1-2 as shown, which is an electrical connector combination of the present invention, including a plug connector 100 and a socket connector 200 that match each other for transmitting large current. The rear end of the plug connector 100 is connected with a cable 23, and the socket connector 200 is installed on a circuit board.
[0023] Refer Figures 3-4 as shown, the plug connector 100 includes an insulating body 10 and two terminal assemblies 20. The insulating body 10 is provided with a docking portion 11, the docking portion 11 is provided with a docking surface 111 and two docking holes 112 penetrating the docking surface 111. The two terminal assemblies 20 are respectively located in the corresponding docking holes 112. The terminal assembly 20 includes a connecting member 21 and a crown spring member 22. One end of the connecting member 21 is provided with a receiving hole 211, and the other end is provided with a connecting portion 212. The crown spring member 22 is placed in the receiving hole 211 to form a conductive docking hole, and the bare core wire of the cable 23 is fixed to the connecting portion 212. The two terminal assemblies 20 of the present invention are respectively positive and negative electrodes, and the rear end of each terminal assembly is connected with two cables 23 for increasing the transmission of current. Of course, one cable can be provided according to specific situations. The bare core wires of the cables 23 are pressed together. A protective cover 31 is installed on the mounting surface opposite to the docking surface 111. The middle of the protective cover 31 is provided with a protruding positioning column 311, which cooperates with the positioning hole 121 at the rear end of the insulating body to achieve assembly positioning. The protective cover 31 is fixed to the mounting surface of the insulating body through the locking arm 312 provided on both sides thereof.
[0024] Reference Figure 2 and Figure 5 As shown, the socket connector 200 includes an insulating body 40 and two columnar terminals 50. The insulating body 40 is provided with a docking surface 411 and a docking cavity 412 penetrating the docking surface, and the two columnar terminals 50 are located in the docking cavity 412.
[0025] The improvement of the present invention lies in that the outer surface of the docking portion 11 of the plug connector 100 and the inner wall surface of the docking cavity 412 of the socket connector 200 respectively have key grooves and key buttons / ribs that match each other to prevent misinsertion. The following will introduce it in detail.
[0026] Combined with Figure 1 and Figure 6 As shown, the docking portion 11 is rectangular, and the four corners 113 are connected by arc chamfers. It has a relative first long outer surface 114 and second long outer surface 115, and two short outer surfaces 116 connecting the first and second long outer surfaces. The first long outer surface 114 is provided with first key grooves 131, second key grooves 132, and third key grooves 133 that are recessed in the direction of the second long outer surface 115 and arranged in sequence. The second long outer surface 115 is provided with fourth key grooves 134, fifth key grooves 135, and sixth key grooves 136 that are recessed in the direction of the first long outer surface 114 and arranged in sequence. The first and fourth key grooves 131 and 134 are aligned face to face with each other, and the widths and recessed depths are substantially the same. The third and sixth key ribs 133 and 136 are aligned face to face with each other, and the widths and recessed depths are substantially the same. The second and fifth key grooves 132 and 135 face each other and are substantially aligned. The width of the second key groove 132 is greater than the width of the fifth key groove 135, but the recessed depth of the second key groove 132 is less than the recessed depth of the fifth key groove 135. More specifically, the first and third key grooves 131 and 133 are spaced at the same distance from the second key groove 132, and the fourth and sixth key grooves 134 and 136 are spaced at the same distance from the fifth key groove 135. The second key groove 132 is located at the center point position of the first long outer surface, and the fifth key groove 135 is located at the center point position of the second long outer surface.
[0027] In the socket connector 200, the docking cavity 412 has opposite first and second long inner wall surfaces 413 and 414, and two short inner wall surfaces 415 connecting the first and second long inner wall surfaces. The first long inner wall surface 413 is provided with a first key rib 431, a second key rib 432 and a third key rib 433 protruding into the docking cavity 412, and the second long inner wall surface 414 is provided with a fourth key rib 434, a fifth key rib 435 and a sixth key rib 436 protruding into the docking cavity 412. Matching with the key grooves of the plug connector 100, the width of the second key rib 432 is greater than the width of the fifth key rib 435, but the protruding depth of the second key rib 432 into the docking cavity is less than the protruding depth of the fifth key rib 435. The first and fourth key ribs are aligned face to face with each other, and have the same width and protruding depth. The third and sixth key ribs are aligned face to face with each other, and have the same width and protruding depth. The first and third key ribs are spaced at the same distance from the second key rib; the fourth and sixth key ribs are spaced at the same distance from the fifth key rib. The second key rib 432 is located at the center point position of the first long inner wall surface; the fifth key rib 435 is located at the center point position of the second long inner wall surface.
[0028] As can be seen from the above, the docking portion 11 of the docking is generally rectangular in structure, with key grooves and key ribs provided on its long sides, which are symmetric in shape, very aesthetic, and at the same time play a role in preventing misconnection. The key groove penetrates the docking portion 12 in the docking direction, as shown in the figure. The first key groove 131 is located on the side of the docking portion 11 away from the cable 23, or rather, the first key groove 131 and the locking member 32 are on the same side, as clearly visible. The fifth key groove 135 is on the same side as the cable 23. Figure 1 As shown, the first key groove 131 is located on the side of the docking portion 11 away from the cable 23, or rather, the first key groove 131 and the locking member 32 are on the same side, as clearly visible. The fifth key groove 135 is on the same side as the cable 23. Figure 3 As clearly visible. The fifth key groove 135 is on the same side as the cable 23.
[0029] As shown in the figure. Figures 7-9 As shown, another plug connector 100A and a socket connector 200A matching with it have basically the same structure as the aforementioned plug connector 100 and socket connector 200, and also have key grooves and key ribs. The difference is that, compared with the plug connector 100, the spacing distances between its first and third key grooves 131A and 133A and the second key groove 132A become smaller, and the spacing distances between its fourth and sixth key grooves 134A and 136A and the fifth key groove 135A become smaller. Similarly, the distances between the key ribs of the socket connector also become smaller. Figure 10 Specifically shows the comparison of the key ribs of the socket connector 200 and the socket connector 200A, as shown by the two dashed lines. As shown in the figure. Figure 1 As shown in the figure, a positioning post 44 is provided on the bottom surface of the insulating body of the socket connector 100. Figure 7 As shown in the figure, two positioning posts 44 are provided on the bottom surface of the insulating body of the socket connector 200A.
[0030] As shown in the figure. Figure 10As shown, it is a cable assembly 1000, which includes a bus connector 300, a first plug connector 100, and a second plug connector 100A, which are connected by two pairs of cables. In this invention, the first plug connector 100 is... Figure 1 The electrical connector 100 shown, the second plug connector 100A is Figure 7 The other plug connector, 100A, shown illustrates the usage scenarios for both plug connectors. For details, please refer to... Figure 11 , Figure 12 As shown, the bus connector 300 includes an insulating body 60 and two spring terminals 70. The insulating body has a mating groove 61 that extends forward and vertically. The two spring terminals 70 are respectively disposed on opposite sides of the mating groove. Each spring terminal 70 includes a contact arm 71 extending into the mating groove 61 and a connecting portion 72. The two spring terminals are positive and negative power terminals. The rear end of each spring terminal 70 is connected to two cables 731 and 732, which are respectively connected to the cable connection portions of the first and second plug connectors. In this embodiment, each terminal assembly of the first and second plug connectors has only one cable, thus achieving connection with the bus connector 300. In this invention, the large current received by the bus connector 300 is redistributed to the first and second plug connectors to power different devices. Because the structures of the first and second plug connectors are roughly the same, the flat cable of the entire device is aesthetically pleasing, and the keyway prevents mis-insertion.
[0031] In summary, the above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention should still fall within the scope of this patent.
Claims
1. A plug connector, comprising an insulating body and two terminal assemblies, the insulating body having a mating portion, the mating portion having a mating surface and two mating holes penetrating the mating surface, the mating portion having a first long outer surface and a second long outer surface opposite to each other, and two short outer surfaces connecting the first and second long outer surfaces; the two terminal assemblies are respectively located in corresponding mating holes; characterized in that: The first long outer surface is provided with a first keyway, a second keyway and a third keyway that are recessed toward the second long outer surface and arranged in sequence. The second long outer surface is provided with a fourth keyway, a fifth keyway and a sixth keyway that are recessed toward the first long outer surface and arranged in sequence. The width of the second keyway is greater than the width of the fifth keyway, but the recess depth of the second keyway is less than the recess depth of the fifth keyway.
2. The plug connector as described in claim 1, characterized in that: The first and fourth keyways are aligned face-to-face with each other and have the same width and recess depth; the third and sixth keyways are aligned face-to-face with each other and have the same width and recess depth.
3. The plug connector as described in claim 2, characterized in that: The first and third keyways are spaced at the same distance from the second keyway; the fourth and sixth keyways are spaced at the same distance from the fifth keyway.
4. The plug connector as described in claim 3, characterized in that: The second keyway is located at the center point of the first long outer surface; the second keyway is located at the center point of the second long outer surface.
5. The plug connector as claimed in claim 1, characterized in that: The plug connector includes cables connected to the terminal assembly, wherein the first long outer surface and the cables are located on the same side of the insulating body.
6. A socket connector, characterized in that: The device includes an insulating body and two columnar terminals. The insulating body has a mating surface and a mating cavity penetrating the mating surface. The mating cavity has a first long inner wall surface and a second long inner wall surface opposite to each other, and two short inner wall surfaces connecting the first and second long inner wall surfaces. The two columnar terminals are located inside the mating cavity. The device is characterized in that: the first long inner wall surface has a first key rib, a second key rib, and a third key rib protruding into the mating cavity; the second long inner wall surface has a fourth key rib, a fifth key rib, and a sixth key rib protruding into the mating cavity; the width of the second key rib is greater than the width of the fifth key rib, but the protrusion depth of the second key rib is less than the protrusion depth of the fifth key rib.
7. The socket connector as described in claim 6, characterized in that: The first and fourth key ribs are aligned face-to-face with each other and have the same width and protrusion depth; the third and sixth key ribs are aligned face-to-face with each other and have the same width and protrusion depth.
8. The socket connector as described in claim 7, characterized in that: The first and third key ribs are spaced equidistant from the second key rib; the fourth and sixth key ribs are spaced equidistant from the fifth key rib.
9. A cable assembly, characterized in that: The device includes a bus connector, a first plug connector, a second plug connector, a pair of first cables, and a pair of second cables. The bus connector includes an insulating body and two spring-loaded terminals. The insulating body has a mating groove that extends forward and vertically. The two spring-loaded terminals are respectively disposed on opposite sides of the mating groove. Each spring-loaded terminal includes a contact arm extending into the mating groove and a connecting portion. The first and second plug connectors each include an insulating body and two terminal assemblies. The insulating body has a mating portion with a mating surface and two mating holes penetrating the mating surface. The mating portion has a first long outer surface and a second long outer surface opposite to each other, and two short outer surfaces connecting the first and second long outer surfaces. One end of each of the first cables is connected to a spring-loaded terminal of the bus connector, and the other end is connected to a terminal assembly of the first plug connector. One end of each of the second cables is connected to a spring-loaded terminal of the bus connector, and the other end is connected to a terminal assembly of the second plug connector.
10. The cable assembly as claimed in claim 9, characterized in that: The first and second power connectors have the same structure, except for the keyway in their mating part.