Connectors

Abstract

The present invention discloses a connector, comprising: a first connector having a first shell and a first terminal disposed in the first shell; and a second connector having a second shell and a second terminal disposed in the second shell, wherein the second connector is adapted to be inserted into the first shell of the first connector so as to be mated with the first connector. The top and rear of the first shell are open, and the second connector is adapted not only to be inserted into the first shell in a vertical direction via the open top of the first shell, but also to be inserted into the first shell in a horizontal direction via the open rear of the first shell. In the present invention, the second connector is adapted to be inserted into the first connector in different directions, so that the insertion direction of the second connector can be selected, making the plugging operation of the connectors more convenient and quicker.

Description

Technical Field

[0001] The present invention relates to a connector, and in particular to a connector suitable for electrically connecting a wire to a circuit board. Background Art

[0002] In the prior art, a wire-to-board connector is often required to quickly connect wires to a circuit board. Existing wire-to-board connectors typically include a receptacle connector and a mating plug connector. The receptacle connector is fixed to the circuit board. The plug connector is electrically connected to the wire and is adapted to plug into the receptacle connector.

[0003] In the prior art, the plug connector can only be plugged into the socket connector in a single direction. If the operating space in the plugging direction is small, the plugging operation of the connector will become more difficult. Summary of the Invention

[0004] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0005] According to one aspect of the present invention, a connector is provided, comprising: a first connector having a first housing and first terminals disposed in the first housing; and a second connector having a second housing and second terminals disposed in the second housing, the second connector being adapted to be inserted into the first housing of the first connector so as to mate with the first connector. The top and rear of the first housing are open, and the second connector is adapted to be inserted into the first housing not only vertically through the open top of the first housing but also horizontally through the open rear of the first housing.

[0006] According to an exemplary embodiment of the present invention, when the second connector is mated with the first connector, the second connector is completely accommodated in the first housing of the first connector.

[0007] According to another exemplary embodiment of the present invention, the first shell includes a pair of side walls opposite to each other in the left and right directions, and an inwardly protruding elastic snap flange is formed on the top edge and rear edge of each of the side walls, and the elastic snap flange is suitable for snapping onto the top edge and rear edge of the second shell of the second connector to lock the second connector in the first shell.

[0008] According to another exemplary embodiment of the present invention, the elastic snap-on flange includes: a first elastic snap-on flange formed on the top edge of the side wall, suitable for snapping on the top edge of the second shell of the second connector; and a second elastic snap-on flange formed on the rear edge of the side wall, suitable for snapping on the rear edge of the second shell of the second connector.

[0009] According to another exemplary embodiment of the present invention, the first elastic snap-fit flange extends horizontally in the front-to-back direction, the second elastic snap-fit flange extends vertically in the vertical direction, and the first elastic snap-fit flange and the second elastic snap-fit flange are connected at the corners of the top edge and the rear edge of the side wall.

[0010] According to another exemplary embodiment of the present invention, the first shell also includes a terminal retaining seat located between the front bottom of the pair of side walls, the first terminal is retained on the terminal retaining seat, and the terminal retaining seat is suitable for abutting against the front end face of the second shell of the second connector.

[0011] According to another exemplary embodiment of the present invention, plug pins are formed on the bottom surfaces of the pair of side walls, and the plug pins are suitable for being plugged into and locked into sockets on a circuit board so as to fix the first connector to the circuit board.

[0012] According to another exemplary embodiment of the present invention, the bottom of the first terminal is suitable for being soldered to the circuit board.

[0013] According to another exemplary embodiment of the present invention, the first housing only includes the pair of side walls and the terminal holding seat, so that the top, bottom, front and rear of the first housing are open.

[0014] According to another exemplary embodiment of the present invention, the second terminal includes a pair of elastic clamping arms, and the pair of elastic clamping arms are suitable for clamping the first terminal.

[0015] According to another exemplary embodiment of the present invention, a terminal slot is formed on the second housing, a pair of elastic clamping arms of the second terminal is accommodated in the terminal slot, and the first terminal is suitable for being inserted into the terminal slot.

[0016] According to another exemplary embodiment of the present invention, the first terminal is in a vertical plate shape, so that the first terminal is suitable for being inserted between the pair of elastic clamping arms not only in a vertical direction but also in a horizontal direction.

[0017] According to another exemplary embodiment of the present invention, a vertical guide portion is formed on the horizontal edges of the pair of elastic clamping arms, and the vertical guide portion is in a trumpet shape that gradually expands outward to guide the first terminal to be inserted between the pair of elastic clamping arms along the vertical direction.

[0018] According to another exemplary embodiment of the present invention, a horizontal guide portion is formed on the vertical edges of the pair of elastic clamping arms, and the horizontal guide portion is in a trumpet shape that gradually expands outward to guide the first terminal to be inserted between the pair of elastic clamping arms along the horizontal direction.

[0019] According to another exemplary embodiment of the present invention, the second connector includes a plurality of sub-connector modules, and the plurality of sub-connector modules are assembled together side by side.

[0020] According to another exemplary embodiment of the present invention, each of the sub-connector modules includes a housing and a second terminal arranged in the housing; the first connector has a plurality of first terminals, and the plurality of first terminals respectively cooperate with the second terminals in the plurality of sub-connector modules.

[0021] According to another exemplary embodiment of the present invention, the second terminal includes an elastic arm, which is suitable for elastically pressing on the conductor of the wire inserted from the wire insertion hole at the rear side of the housing so as to electrically contact the conductor of the wire.

[0022] According to another exemplary embodiment of the present invention, each of the sub-connector modules further includes a rotating arm provided in the housing, one end of the rotating arm being rotatably connected to the inner wall of the housing; the elastic arm of the second terminal is connected to the rotating arm, so that the elastic arm can be moved to a release position in which it does not contact the conductor of the wire by rotating the rotating arm to allow the wire to be inserted or removed.

[0023] According to another exemplary embodiment of the present invention, the other end of the rotating arm extends out from the front opening of the housing, so that the rotating arm can be driven to rotate by the other end of the rotating arm.

[0024] According to another exemplary embodiment of the present invention, a handle portion suitable for human finger operation is formed on the other end of the rotating arm, and the handle portion can be exposed through the front opening of the first shell of the first connector, so that the rotating arm can be driven to rotate by operating the handle portion.

[0025] According to another exemplary embodiment of the present invention, a plurality of protruding columns are formed on one side of the shell of each sub-connector module, and a plurality of plug-in holes matching the plurality of protruding columns are formed on the other side; the protruding columns of one of two adjacent sub-connector modules among the plurality of sub-connector modules are inserted into the plug-in holes of the other one, thereby assembling the plurality of sub-connector modules side by side.

[0026] According to another exemplary embodiment of the present invention, one side of the shell of each sub-connector module has a side opening and the other side has a closed side wall; the closed side wall of one of two adjacent sub-connector modules covers the side opening of the other; the second connector also includes a side cover, which covers the side opening of the shell of the outermost sub-connector module of the second connector.

[0027] According to another exemplary embodiment of the present invention, the plurality of sub-connector modules have different functions, and the housings of the plurality of sub-connector modules have different colors to distinguish the functions of the plurality of sub-connector modules.

[0028] In the aforementioned exemplary embodiments of the present invention, the second connector is suitable for being inserted into the first connector along different directions, so that the insertion direction of the second connector can be selected, making the plugging operation of the connectors more convenient and faster.

[0029] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention as viewed from the front side;

[0031] Figure 2 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention as viewed from the rear side;

[0032] Figure 3 show Figure 1 A perspective schematic diagram of the first connector shown;

[0033] Figure 4 show Figure 3 A schematic diagram showing a first connector mounted on a circuit board;

[0034] Figure 5 show Figure 3 A schematic diagram showing the first connector pins being inserted into the jacks of the circuit board;

[0035] Figure 6 show Figure 1 A perspective schematic diagram of the second connector shown;

[0036] Figure 7 show Figure 6 a cross-sectional view of the second connector shown;

[0037] Figure 8 show Figure 6 A perspective schematic diagram of a second terminal of the second connector shown;

[0038] Figure 9 show Figure 8 A schematic diagram showing the second terminal of the second connector mating with the first terminal of the first connector;

[0039] Figure 10 A schematic diagram showing the second connector being vertically inserted into the first connector;

[0040] Figure 11 Diagram showing the second connector being inserted horizontally into the first connector. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as limiting the present invention.

[0042] In addition, in the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments can be practiced without these specific details. In other cases, well-known structures and devices are shown in diagrammatic form to simplify the accompanying drawings.

[0043] According to one general technical concept of the present invention, a connector is provided, comprising: a first connector having a first housing and first terminals disposed in the first housing; and a second connector having a second housing and second terminals disposed in the second housing, the second connector being adapted to be inserted into the first housing of the first connector so as to mate with the first connector. The top and rear portions of the first housing are open, and the second connector is adapted to be inserted into the first housing not only vertically through the open top portion of the first housing but also horizontally through the open rear portion of the first housing.

[0044] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention as viewed from the front side. Figure 2A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention as viewed from the rear side. Figure 3 show Figure 1 A three-dimensional schematic diagram of the first connector is shown. Figure 6 show Figure 1 A three-dimensional schematic diagram of the second connector is shown.

[0045] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, the connector mainly includes a first connector 100 and a second connector 20. The first connector 100 has a first housing 110 and a first terminal 120 disposed in the first housing 110. The second connector 20 has a second housing 21 and a second terminal 220 disposed in the second housing 21.

[0046] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, the second connector 20 is adapted to be inserted into the first housing 110 of the first connector 100 so as to be mated with the first connector 100 .

[0047] Figure 10 A schematic diagram showing the second connector being vertically inserted into the first connector; Figure 11 Diagram showing the second connector being inserted horizontally into the first connector.

[0048] like Figure 1-3 、 Figure 6 and Figure 10-11 As shown, in the embodiment shown in the figure, the top and rear of the first housing 110 are open, and the second connector 20 is not only suitable for Figure 10 As shown, the first housing 110 is inserted into the first housing 110 in a vertical direction through the open top of the first housing 110, and is suitable for Figure 11 As shown, the first housing 110 is inserted into the first housing 110 in a horizontal direction through the open rear portion of the first housing 110 .

[0049] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, when the second connector 20 is mated with the first connector 100 , the second connector 20 is completely accommodated in the first housing 110 of the first connector 100 .

[0050] like Figure 1-3 and Figure 6As shown, in the illustrated embodiment, the first shell 110 includes a pair of side walls 111 opposite to each other in the left and right directions, and inwardly protruding elastic snap flanges 111a, 111b are formed on the top edge and rear edge of each side wall 111, and the elastic snap flanges 111a, 111b are suitable for snapping onto the top edge and rear edge of the second shell 21 of the second connector 20 to lock the second connector 20 in the first shell 110.

[0051] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, the aforementioned elastic snap-fit flanges 111a and 111b include a first elastic snap-fit flange 111a and a second elastic snap-fit flange 111b. The first elastic snap-fit flange 111a is formed on the top edge of the side wall 111 and is adapted to snap onto the top edge of the second housing 21 of the second connector 20. The second elastic snap-fit flange 111b is formed on the rear edge of the side wall 111 and is adapted to snap onto the rear edge of the second housing 21 of the second connector 20.

[0052] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, the first elastic snap flange 111a extends horizontally in the front-to-back direction, the second elastic snap flange 111b extends vertically in the vertical direction, and the first elastic snap flange 111a and the second elastic snap flange 111b are connected at the corners of the top edge and the rear edge of the side wall 111.

[0053] like Figure 1-3 and Figure 6 As shown, in the illustrated embodiment, the first shell 110 also includes a terminal retaining seat 112 located between the front bottom of a pair of side walls 111, and the first terminal 120 is retained on the terminal retaining seat 112, and the terminal retaining seat 112 is suitable for abutting against the front end face of the second shell 21 of the second connector 20.

[0054] Figure 4 show Figure 3 A schematic diagram showing a first connector mounted on a circuit board; Figure 5 show Figure 3 The schematic diagram shows that the plug pins of the first connector are inserted into the sockets of the circuit board.

[0055] like Figures 1 to 6 As shown, in the illustrated embodiment, plug pins 111 c are formed on the bottom surfaces of the pair of side walls 111 , and the plug pins 111 c are suitable for being plugged into and locked into the sockets 300 c on the circuit board 300 so as to fix the first connector 100 to the circuit board 300 .

[0056] like Figures 1 to 6As shown, in the illustrated embodiment, the bottom of the first terminal 120 is suitable for being soldered to the circuit board 300 so as to fix and electrically connect the first terminal 120 to the circuit board 300 .

[0057] like Figures 1 to 6 As shown, in the illustrated embodiment, the first housing 110 includes only a pair of side walls 111 and a terminal holding seat 112 , so that the top, bottom, front, and rear of the first housing 110 are all open.

[0058] Figure 7 show Figure 6 a cross-sectional view of the second connector shown; Figure 8 show Figure 6 A perspective schematic diagram of a second terminal of the second connector shown; Figure 9 show Figure 8 Schematic diagram showing the second terminal of the second connector mating with the first terminal of the first connector.

[0059] like Figures 1 to 9 As shown, in the illustrated embodiment, the second terminal 220 includes a pair of elastic clamping arms 222. The pair of elastic clamping arms 222 is suitable for clamping the first terminal 120.

[0060] like Figures 1 to 9 As shown, in the illustrated embodiment, a terminal slot 211 is formed on the second housing 21 , a pair of elastic clamping arms 222 of the second terminal 220 are accommodated in the terminal slot 211 , and the first terminal 120 is suitable for being inserted into the terminal slot 211 .

[0061] like Figures 1 to 9 As shown, in the illustrated embodiment, the first terminal 120 is in a vertical plate shape, so that the first terminal 120 is suitable for being inserted between the pair of elastic clamping arms 222 not only in the vertical direction but also in the horizontal direction.

[0062] like Figures 1 to 9 As shown, in the illustrated embodiment, a vertical guide portion 222a is formed on the horizontal edges of a pair of elastic clamping arms 222, and the vertical guide portion 222a is in the shape of a trumpet that gradually expands outward to guide the first terminal 120 to be inserted between the pair of elastic clamping arms 222 along the vertical direction.

[0063] like Figures 1 to 9 As shown, in the illustrated embodiment, a horizontal guide portion 222b is formed on the vertical edges of a pair of elastic clamping arms 222, and the horizontal guide portion 222b is a trumpet shape that gradually expands outward to guide the first terminal 120 to be inserted between the pair of elastic clamping arms 222 along the horizontal direction.

[0064] like Figures 1 to 9As shown, in the illustrated embodiment, the second connector 20 includes a plurality of sub-connector modules 200 , and the plurality of sub-connector modules 200 are assembled together side by side.

[0065] like Figures 1 to 9 As shown, in the illustrated embodiment, each sub-connector module 200 includes a housing 210 and a second terminal 220 set in the housing 210; the first connector 100 has a plurality of first terminals 120, and the plurality of first terminals 120 respectively cooperate with the second terminals 220 in the plurality of sub-connector modules 200.

[0066] like Figures 1 to 9 As shown, in the illustrated embodiment, the second terminal 220 includes an elastic arm 221, which is suitable for elastically pressing on the conductor 410 of the wire 400 inserted from the rear wire insertion hole of the housing 210 so as to electrically contact the conductor 410 of the wire 400.

[0067] like Figures 1 to 9 As shown, in the illustrated embodiment, each sub-connector module 200 also includes a rotating arm 230 provided in the housing 210, and one end of the rotating arm 230 is rotatably connected to the inner wall of the housing 210; the elastic arm 221 of the second terminal 220 is connected to the rotating arm 230, so that the elastic arm 221 can be moved to a release position where it does not contact the conductor 410 of the wire 400 by rotating the rotating arm 230 to allow the wire 400 to be inserted or removed.

[0068] like Figures 1 to 9 As shown, in the illustrated embodiment, the other end of the rotating arm 230 extends from the front opening of the housing 210 , so that the rotating arm 230 can be driven to rotate by the other end of the rotating arm 230 .

[0069] like Figures 1 to 9 As shown, in the illustrated embodiment, a handle portion 230a suitable for human finger operation is formed on the other end of the rotating arm 230, and the handle portion 230a can be exposed through the front opening of the first shell 110 of the first connector 100, so that the rotating arm 230 can be driven to rotate by operating the handle portion 230a.

[0070] like Figures 1 to 9 As shown, in the illustrated embodiment, a plurality of protruding columns are formed on one side of the housing 210 of each sub-connector module 200, and a plurality of plug-in holes matching the plurality of protruding columns are formed on the other side; the protruding columns of one of two adjacent sub-connector modules among the plurality of sub-connector modules 200 are inserted into the plug-in holes of the other one, thereby assembling the plurality of sub-connector modules 200 side by side.

[0071] like Figures 1 to 9As shown, in the illustrated embodiment, one side of the shell 210 of each sub-connector module 200 has a side opening and the other side has a closed side wall; the closed side wall of one of the two adjacent sub-connector modules 200 covers the side opening of the other; the second connector 20 also includes a side cover 201, which covers the side opening of the shell 210 of the outermost sub-connector module 200 of the second connector 20.

[0072] like Figures 1 to 9 As shown, in the illustrated embodiment, the plurality of sub-connector modules 200 have different functions, and the housings 210 of the plurality of sub-connector modules 200 have different colors to distinguish the functions of the plurality of sub-connector modules 200 .

[0073] Those skilled in the art will appreciate that the embodiments described above are exemplary and that they may be improved upon. The structures described in the various embodiments may be freely combined without causing any conflict in structure or principle.

[0074] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify the preferred embodiments of the present invention and should not be construed as limiting the present invention.

[0075] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined in the claims and their equivalents.

[0076] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference in the claims should not be construed as limiting the scope of the invention.

Claims

1. A connector, comprising: A first connector (100) having a first housing (110) and a first terminal (120) disposed in the first housing (110); and The second connector (20) has a second housing (21) and a second terminal (220) disposed in the second housing (21). The second connector (20) is suitable for being inserted into the first housing (110) of the first connector (100) so as to be mated with the first connector (100). Its characteristics are: The top and rear of the first shell (110) are open, and the second connector (20) is suitable for being inserted into the first shell (110) not only in a vertical direction via the open top of the first shell (110), but also in a horizontal direction via the open rear of the first shell (110).

2. The connector according to claim 1, wherein: When the second connector (20) and the first connector (100) are mated together, the second connector (20) is completely accommodated in the first housing (110) of the first connector (100).

3. The connector according to claim 1, wherein: The first shell (110) includes a pair of side walls (111) opposite to each other in the left-right direction, and an inwardly protruding elastic snap flange (111a, 111b) is formed on the top side edge and the rear side edge of each side wall (111), and the elastic snap flange (111a, 111b) is suitable for snapping on the top side edge and the rear side edge of the second shell (21) of the second connector (20) to lock the second connector (20) in the first shell (110).

4. The connector according to claim 3, wherein: The elastic snap-fit flanges (111a, 111b) include: a first elastic snap-fit flange (111a), formed on the top edge of the side wall (111), adapted to snap onto the top edge of the second housing (21) of the second connector (20); and A second elastic snap-fit flange (111b) is formed on the rear edge of the side wall (111) and is suitable for snapping onto the rear edge of the second housing (21) of the second connector (20).

5. The connector according to claim 4, wherein: The first elastic snap-fit flange (111a) extends horizontally in the front-to-back direction, the second elastic snap-fit flange (111b) extends vertically in the vertical direction, and the first elastic snap-fit flange (111a) and the second elastic snap-fit flange (111b) are connected at the corners of the top side edge and the rear side edge of the side wall (111).

6. The connector according to claim 3, wherein: The first housing (110) further comprises a terminal retaining seat (112) located between the front bottoms of the pair of side walls (111), the first terminal (120) being retained on the terminal retaining seat (112), and the terminal retaining seat (112) being adapted to abut against the front end face of the second housing (21) of the second connector (20).

7. The connector according to claim 6, wherein: Plug pins (111c) are formed on the bottom surfaces of the pair of side walls (111), and the plug pins (111c) are suitable for plugging and locking into the sockets (300c) on the circuit board (300) so as to fix the first connector (100) to the circuit board (300).

8. The connector according to claim 7, wherein: The bottom of the first terminal (120) is suitable for being soldered to the circuit board (300).

9. The connector according to claim 6, wherein: The first housing (110) only includes the pair of side walls (111) and the terminal holding seat (112), so that the top, bottom, front and rear of the first housing (110) are all open.

10. The connector according to claim 1 or 6, characterized in that: The second terminal (220) comprises a pair of elastic clamping arms (222), and the pair of elastic clamping arms (222) are suitable for clamping the first terminal (120).

11. The connector according to claim 10, wherein: A terminal slot (211) is formed on the second housing (21), a pair of elastic clamping arms (222) of the second terminal (220) are accommodated in the terminal slot (211), and the first terminal (120) is suitable for being inserted into the terminal slot (211).

12. The connector according to claim 10, wherein: The first terminal (120) is in the shape of a vertical plate, so that the first terminal (120) is not only suitable for being inserted between the pair of elastic clamping arms (222) in a vertical direction, but also suitable for being inserted between the pair of elastic clamping arms (222) in a horizontal direction.

13. The connector according to claim 12, wherein: A vertical guide portion (222a) is formed on the horizontal edges of the pair of elastic clamping arms (222), and the vertical guide portion (222a) is in the shape of a trumpet that gradually expands outwards to guide the first terminal (120) to be inserted between the pair of elastic clamping arms (222) in a vertical direction.

14. The connector according to claim 12, wherein: A horizontal guide portion (222b) is formed on the vertical edges of the pair of elastic clamping arms (222), and the horizontal guide portion (222b) is in the shape of a trumpet that gradually expands outwards, so as to guide the first terminal (120) to be inserted between the pair of elastic clamping arms (222) along the horizontal direction.

15. The connector according to claim 1, wherein: The second connector (20) comprises a plurality of sub-connector modules (200), and the plurality of sub-connector modules (200) are assembled together side by side.

16. The connector according to claim 15, wherein: Each of the sub-connector modules (200) comprises a housing (210) and a second terminal (220) disposed in the housing (210); The first connector (100) has a plurality of first terminals (120), and the plurality of first terminals (120) respectively cooperate with the second terminals (220) in the plurality of sub-connector modules (200).

17. The connector according to claim 16, wherein: The second terminal (220) includes an elastic arm (221), and the elastic arm (221) is suitable for elastically pressing on the conductor (410) of the wire (400) inserted from the wire insertion hole on the rear side of the housing (210) so as to electrically contact the conductor (410) of the wire (400).

18. The connector according to claim 17, wherein: Each sub-connector module (200) further comprises a rotating arm (230) disposed in the housing (210), one end of the rotating arm (230) being rotatably connected to the inner wall of the housing (210); The elastic arm (221) of the second terminal (220) is connected to the rotating arm (230), so that the elastic arm (221) can be moved to a release position without contacting the conductor (410) of the wire (400) by rotating the rotating arm (230), thereby allowing the wire (400) to be inserted or removed.

19. The connector according to claim 18, wherein: The other end of the rotating arm (230) extends out from the front opening of the housing (210), so that the rotating arm (230) can be driven to rotate through the other end of the rotating arm (230).

20. The connector according to claim 19, wherein: A handle portion (230a) suitable for operation by a human finger is formed on the other end of the rotating arm (230), and the handle portion (230a) can be exposed through the front opening of the first housing (110) of the first connector (100), so that the rotating arm (230) can be driven to rotate by operating the handle portion (230a).

21. The connector according to claim 16, wherein: A plurality of protruding columns are formed on one side of the housing (210) of each sub-connector module (200), and a plurality of plug holes matching the plurality of protruding columns are formed on the other side; The protruding column of one of two adjacent sub-connector modules among the plurality of sub-connector modules (200) is inserted into the plug-in hole of the other one, thereby assembling the plurality of sub-connector modules (200) side by side.

22. The connector according to claim 21, wherein: The housing (210) of each sub-connector module (200) has a side opening on one side and a closed side wall on the other side; the closed side wall of one of the two adjacent sub-connector modules (200) covers the side opening of the other; The second connector (20) further comprises a side cover (201), wherein the side cover (201) covers a side opening of a housing (210) of a sub-connector module (200) on the outermost side of the second connector (20).

23. The connector according to claim 16, wherein: The plurality of sub-connector modules (200) have different functions, and the housings (210) of the plurality of sub-connector modules (200) have different colors to distinguish the functions of the plurality of sub-connector modules (200).

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