Subconnector, connector and connector arrangement

Description

BACKGROUND OF THE INVENTION Field of the Invention

[0001] The present invention relates to a sub connector, a connector including the sub connector and a connector assembly including the connector.Description of the Related Art

[0002] In the prior art, a connector typically includes a housing, a shielded shell, and terminals. The shielding shell and terminals are inserted into the housing, and the terminals are surrounded by the shielding shell. In the prior art, when some terminals in the connector are damaged, the entire connector can only be replaced as a whole, resulting in higher costs. In addition, in the prior art, all terminals are received in the same shielding shell, which cannot prevent signal interference between the terminals in the connector.

[0003] US 10 916 895 B2 describes a double-shielded high-speed docking connector.

[0004] US 6 905 367 B2 describes a modular coaxial electrical interconnect system having a modular frame and electrically shielded signal paths and a method of making the same.

[0005] FR 2 952 761 A1 describes a multicontact connector.SUMMARY OF THE INVENTION

[0006] The present invention has been made to overcome or alleviate at least one aspect of the above mentioned disadvantages.

[0007] According to an aspect of the present invention, there is provided a sub connector. The sub connector comprises of: a sub housing; a first terminal fixed in the sub housing; and a shielding shell fixed to the sub housing and at least partially enclosing the first terminal. The sub connector is adapted to be detachably inserted into a mother housing to form a connector with the mother housing. The sub connector has a sub connecting end for electrically connecting with an electrical component and a sub mating end for electrically mating with a mating connector.

[0008] The sub housing comprises of: a first peripheral wall which defines a first inner cavity; and a first holder which is located in the first inner cavity and connected to the first peripheral wall. The first terminal is located in the first inner cavity and fixed to the first holder; at least a part of the shielding shell is located in the first inner cavity and fixed to the first holder.

[0009] The first holder and the shielding shell extend axially beyond one end of the first peripheral wall, and the first holder is accommodated in the shielding shell.

[0010] According to an exemplary embodiment of the present invention, an elastic buckle is formed on the first peripheral wall, and a locking surface is formed on the elastic buckle; the locking surface is adapted to abut against a mating locking surface formed on the mother housing to lock the sub connector in a predetermined position.

[0011] According to another exemplary embodiment of the present invention, the first peripheral wall comprises of: an insertion part adapted to be inserted into a sub connector slot formed in a second holder of the mother housing; and a base part which is connected to one end of the insertion part and adapted to be positioned outside the sub connector slot. A positioning surface is formed on the base part, the positioning surface is adapted to abut against a mating positioning surface formed on the second holder to position the sub connector at the predetermined position.

[0012] According to another exemplary embodiment of the present invention, a first terminal slot is formed on the first holder, and a part of the first terminal is inserted and fixed into the first terminal slot; and a shielding shell slot is formed on the insertion part of the first peripheral wall, and a part of the shielding shell is inserted and fixed into the shielding shell slot.

[0013] According to another exemplary embodiment of the present invention, the shielding shell includes a pair of opposite first sidewalls, one sidewall of which has a first tongue, and the shielding shell slot includes a first slot for mating with the first tongue; the other sidewall of the pair of first sidewalls extends to one end of the first peripheral wall and is not inserted into the first peripheral wall.

[0014] According to another exemplary embodiment of the present invention, the shielding shell includes a pair of opposite second sidewalls; the second sidewall has a second tongue, and the shielding shell slot includes a second slot for mating with the second tongue; a barbed protrusion is formed on the first tongue and / or the second tongue, and the barbed protrusion is engaged with the inner wall of the shielding shell slot.

[0015] According to another exemplary embodiment of the present invention, an elastic contact part is formed on the shielding shell, which is used for electrical contact with a mating shielding shell of a mating sub connector in the mating connector.

[0016] According to another exemplary embodiment of the present invention, the shielding shell is an integral piece.

[0017] According to another exemplary embodiment of the present invention, the sub housing is formed with a first positioning post at the sub connecting end, the first positioning post is adapted to mate with an insertion hole formed in the electrical component to fix the sub connector on the electrical component.

[0018] According to another exemplary embodiment of the present invention, the first terminal in the sub connector is a differential signal terminal, and the sub connector includes a pair of differential signal terminals.

[0019] According to another aspect of the present invention, there is provided a connector. The connector comprises of: a mother housing; and the above sub connector. The sub connector is detachably inserted into the mother housing to form a connector with the mother housing.

[0020] According to an exemplary embodiment of the present invention, the connector has a connecting interface for electrically connecting with an electrical component and a mating interface for electrically mating with a mating connector; the sub connecting end and the sub mating end of the sub connector are respectively arranged in the connecting interface and the mating interface of the connector.

[0021] According to another exemplary embodiment of the present invention, the connector further comprises a second terminal which is fixed in the mother housing, the function of the second terminal is different from that of the first terminal.

[0022] According to another exemplary embodiment of the present invention, the connector includes multiple sub connectors, each of which is detachably inserted into the mother housing; and the multiple sub connectors are identical, allowing them to be interchangeably used.

[0023] According to another exemplary embodiment of the present invention, the mother housing comprises of: a second peripheral wall which defines a second inner cavity; and a second holder located in the second inner cavity and connected to the second peripheral wall. A sub connector slot is formed in the second holder, and the sub connector is inserted into the sub connector slot.

[0024] According to another exemplary embodiment of the present invention, the connector further comprises a second terminal located in the second inner cavity and fixed to the second holder, a second terminal slot is formed in the second holder, and a part of the second terminal is inserted and fixed into the second terminal slot.

[0025] According to another exemplary embodiment of the present invention, a first positioning post, a first terminal pin, and a shielding pin are respectively formed on the sub housing, the first terminal, and the shielding shell of the sub connector for plugging into corresponding holes formed in an electrical component; a second positioning post and a second terminal pin are respectively formed on the mother housing and the second terminal for plugging into corresponding holes formed in the electrical component; the first positioning post, the second positioning post, the shielding pin, the first terminal pin, and the second terminal pin extend along the axial direction of the connector or are bent 90 degrees relative to the axial direction of the connector.

[0026] According to another aspect of the present invention, there is provided a connector assembly. The connector assembly comprises of: the above connector; and a mating connector mated with the connector.

[0027] In the aforementioned exemplary embodiments of the present invention, when the terminal in the sub connector is damaged, the sub connector can be replaced separately without the need to replace the entire connector, thereby reducing the maintenance cost of the connector.

[0028] In addition, in the present invention, each sub connector includes a separate shielding shell, which can prevent signal interference between terminals in the connector and improve the anti electromagnetic interference performance of the connector.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which: Figure 1 shows an illustrative perspective view of a connector according to an exemplary embodiment of the present invention; Figure 2 shows an illustrative exploded view of a connector according to an exemplary embodiment of the present invention; Figure 3 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention, wherein a sub connector is not installed in the mother housing; Figure 4 shows an illustrative perspective view of a sub connector according to an exemplary embodiment of the present invention when viewed from the rear end; Figure 5 shows an illustrative perspective view of a sub connector according to an exemplary embodiment of the present invention when viewed from the front end; Figure 6 shows an illustrative exploded view of the sub connector according to an exemplary embodiment of the present invention when viewed from the upper side; Figure 7 shows an illustrative exploded view of the sub connector according to an exemplary embodiment of the present invention when viewed from the bottom; Figure 8 shows an axial cross-sectional view of a sub connector according to an exemplary embodiment of the present invention; Figure 9 shows an illustrative perspective view of a sub connector installed on an electrical component according to an exemplary embodiment of the present invention; and Figure 10 shows an illustrative perspective view of a sub connector installed on an electrical component according to another exemplary embodiment of the present invention. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE IVENTION

[0030] Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0031] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

[0032] According to an overall technical concept of the present invention, a sub connector is provided. The sub connector comprises of: a sub housing 21; a first terminal 22 which is fixed in the sub housing 21; and a shielding shell 23 fixed to the sub housing 21 and at least partially enclosing the first terminal 22. The sub connector 2 is adapted to be detachably inserted into a mother housing 11 to form a connector 1 with the mother housing 11. The sub connector 2 has a sub connecting end 201 for electrically connecting to an electrical component 3 and a sub mating end 202 for electrically mating with a mating connector.

[0033] According to another overall technical concept of the present invention, a connector is provided. The connector comprises of: a mother housing 11; and the aforementioned sub connector 2. The sub connector 2 is detachably inserted into the mother housing 11 to form a connector 1 with the mother housing 11.

[0034] According to another overall technical concept of the present invention, a connector assembly is provided. The connector assembly comprises of: the above connector; and a mating connector mated with the connector.

[0035] Figure 1 shows an illustrative perspective view of connector 1 according to an exemplary embodiment of the present invention; Figure 2 shows an illustrative exploded view of connector 1 according to an exemplary embodiment of the present invention; Figure 3 shows a cross-sectional view of connector 1 according to an exemplary embodiment of the present invention, where one sub connector 2 is not installed in the mother housing 11.

[0036] As shown in Figures 1 to 3, in an exemplary embodiment of the present invention, a connector 1 is disclosed. The connector 1 includes a mother housing 11 and a sub connector 2. The sub connector 2 can be detachably inserted into the mother housing 11. In the illustrated embodiment, the sub connector 2 can also be referred to as a sub electrical module.

[0037] As shown in Figures 1 to 3, in the illustrated embodiment, the sub connector 2 includes: a sub housing 21, a first terminal 22, and a shielding shell 23. The first terminal 22 is fixed in the sub housing 21. The shielding shell 23 is fixed to the sub housing 21 and surrounds the first terminal 22. The connector 1 also includes a second terminal 12. The second terminal 12 is fixed in the mother housing 11. The function of the second terminal 12 is different from that of the first terminal 22.

[0038] As shown in Figures 1 to 3, in the illustrated embodiment, the connector 1 includes multiple sub connectors 2, each of which can be detachably inserted into the mother housing 11.

[0039] As shown in Figures 1 to 3, in the illustrated embodiment, multiple sub connectors 2 are identical, allowing for the interchangeability of multiple sub connectors 2.

[0040] As shown in Figures 1 to 3, in the illustrated embodiments, the connector 1 is equipped with a connecting interface 110 and a mating interface 120, which are respectively used for electrical connection with an electrical component (such as a circuit board) 3 and a mating connector (not shown). The sub connector 2 is equipped with a sub connecting end 201 and a sub mating end 202. The sub connecting end 201 and the sub mating end 202 are respectively arranged in the connecting interface 110 and the mating interface 120 of the connector 11, and are electrically connected to the electrical component 3 and the mating connector.

[0041] As shown in Figures 1 to 3, in the illustrated embodiment, the mother housing 11 includes a second peripheral wall 111 and a second holder 113. The second peripheral wall 111 defines a second inner cavity. The second holder 113 is located in the second inner cavity and connected to the second peripheral wall 111. A sub connector slot 102 is formed on the second holder 113, and the sub connector 2 is inserted into the sub connector slot 102.

[0042] As shown in Figures 1 to 3, in the illustrated embodiment, the connector 1 further includes a second terminal 12. The second terminal 12 is located in the second inner cavity and fixed to the second holder 113. A second terminal slot 101 is also formed on the second holder 113, and a part of the second terminal 12 is inserted and fixed into the second terminal slot 101.

[0043] Figure 4 shows an illustrative perspective view of the sub connector 2 according to an exemplary embodiment of the present invention when viewed from the rear end; Figure 5 shows an illustrative perspective view of the sub connector 2 according to an exemplary embodiment of the present invention when viewed from the front end; Figure 6 shows an illustrative exploded view of the sub connector 2 according to an exemplary embodiment of the present invention when viewed from the upper side; Figure 7 shows a exploded schematic diagram of the sub connector 2 according to an exemplary embodiment of the present invention when viewed from the bottom; Figure 8 shows an axial cross-sectional view of the sub connector 2 according to an exemplary embodiment of the present invention.

[0044] As shown in Figures 1 to 8, in the illustrated embodiment, the sub housing 21 includes: a first peripheral wall 211, 212, and a first holder 213. The first peripheral wall 211 and 212 defines a first inner cavity. The first holder 213 is located in the first inner cavity and connected to the first peripheral wall 211 and 212. The first terminal 22 is located in the first inner cavity and fixed to the first holder 213. At least a part of the shielding shell 23 is located in the first inner cavity and fixed to the first holder 213.

[0045] As shown in Figures 1 to 8, in the illustrated embodiments, the first holder 213 and the shielding shell 23 extend axially beyond one end 211a of the first peripheral wall 211 and 212, and the first holder 213 is accommodated in the shielding shell 23.

[0046] As shown in Figures 1 to 8, in the illustrated embodiments, an elastic buckle 214 is formed on the first peripheral wall 211 and 212, and a locking surface 214a is formed on the elastic buckle 214. A mating locking surface 114a is formed on the second holder 113, and the locking surface 214a is against the mating locking surface 114a to lock the sub connector 2 in a predetermined position.

[0047] As shown in Figures 1 to 8, in the illustrated embodiments, the elastic buckle 214 includes an elastic cantilever 2141 and a protrusion 2142. The protrusion 2142 is formed on the free end of the elastic cantilever 2141, and the locking surface 214a is formed on the protrusion 2142.

[0048] As shown in Figures 1 to 8, in the illustrated embodiments, the first peripheral wall 211 and 212 includes an insertion part 211 and a base part 212. The insertion part 211 is used to insert into the sub connector slot 102. The base part 212 is connected to one end of the insertion part 211 and adapted to be positioned outside the sub connector slot 102. A positioning surface 212a is formed on the base part 212, and a mating positioning surface 112a is formed on the second holder 113. The positioning surface 212a is against the mating positioning surface 112a to position the sub connector 2 in a predetermined position.

[0049] As shown in Figures 1 to 8, in the illustrated embodiments, the sub connector 2 is inserted along the axial direction of the sub connector slot 102, and the locking surface 214a and the positioning surface 212a extend along the radial direction of the sub connector slot 102 and are spaced at a predetermined distance in the axial direction.

[0050] As shown in Figures 1 to 8, in the illustrated embodiment, a first terminal slot is formed on the first holder 213, and a part of the first terminal 22 is inserted and fixed into the first terminal slot. The shielding shell slot 2101 and 2102 is formed on the insertion part 211 of the first peripheral wall 211 and 212, and a part of the shielding shell 23 is inserted and fixed into the shielding shell slot 2101 and 2102.

[0051] As shown in Figures 1 to 8, in the illustrated embodiments, the shielding shell 23 includes a pair of first sidewalls 231 and 232 opposite to each other in a first direction, and the first direction is perpendicular to the axial direction of the shielding shell 23. One sidewall 231 of the first sidewalls 231 and 232 has a first tongue 2310, and the shielding shell slot 2101 and 2102 includes a first slot 2101 that is matched with the first tongue 2310. The other sidewall 232 in the pair of first sidewalls 231 and 232 extends to one end 211a of the first peripheral wall 211 and 212 and is not inserted into the first peripheral wall 211 and 212.

[0052] As shown in Figures 1 to 8, in the illustrated embodiments, the shielding shell 23 includes a pair of second sidewalls 233 opposite to each other in a second direction, with the second direction perpendicular to the axial direction of the shielding shell 23 and the first direction. The second sidewall 233 is equipped with a second tongue 2330, and the shielding shell slot 2101 and 2102 includes a second slot 2102 for mating with the second tongue 2330.

[0053] As shown in Figures 1 to 8, in the illustrated embodiments, a barbed protrusion 2311 is formed on the first tongue 2310 and / or the second tongue 2330, and the barbed protrusion 2311 is engaged with the inner wall of the shielding shell slot 2101 and 2102.

[0054] As shown in Figures 1 to 8, in the illustrated embodiments, an elastic contact part 234 is formed on the shielding shell 23, which is used for electrical contact with a mating shielding shell of a mating sub connector in the mating connector.

[0055] As shown in Figures 1 to 8, in the illustrated embodiment, the mother housing 11 has a flange part 112 for installation on a mounting panel (not shown), and a sealing ring installation groove 112b is formed on one surface of the flange part 112. Connector 1 also includes a sealing ring 114 installed in the sealing ring installation groove 112b, which is used to achieve sealing between the flange part 112 and the installation panel.

[0056] Figure 9 shows an illustrative perspective view of the sub connector 2 installed on the electrical component 3 according to an exemplary embodiment of the present invention; Figure 10 shows an illustrative perspective view of the sub connector 2 installed on the electrical component 3 according to another exemplary embodiment of the present invention.

[0057] As shown in Figures 1 to 10, in the illustrated embodiments, a second positioning post 115 is formed on the mother housing 11, and a first positioning post 215 is formed on the sub housing 21. The second positioning post 115 and the first positioning post 215 are used for insertion and fixation into the corresponding holes on the electrical component 3. In the illustrated embodiment, the electrical component 3 is a circuit board.

[0058] As shown in Figure 10, in the illustrated embodiment, at least one of the second positioning post 115 and the first positioning post 215 is formed with a separation groove 2151 extending axially to allow the positioning post 215 to undergo radial elastic deformation. A radial protrusion 2152 is formed at the end of the positioning post 215, which is used to rest against the surface of the electrical component 3 to prevent the positioning post 215 from being pulled out of the hole on the electrical component 3.

[0059] As shown in Figures 1 to 10, in the illustrated embodiments, a shielding pin 235, a second terminal pin 125, and a first terminal pin 225 are respectively formed on the shielding shell 23, the second terminal 12, and the first terminal 22 for plugging into the corresponding holes of the electrical component 3. The second positioning post 115, the first positioning post 215, the shielding pin 235, the second terminal pin 125, and the first terminal pin 225 extend along the axial direction of connector 1 or are bent 90 degrees relative to the axial direction of connector 1.

[0060] As shown in Figures 1 to 10, in the illustrated embodiment, the first terminal 22 of the sub connector 2 is a differential signal terminal, and the sub connector 2 includes a pair of differential signal terminals.

[0061] As shown in Figures 1 to 10, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: a connector 1 and a mating connector mated with the connector 1.

[0062] As shown in Figures 1 to 10, in the illustrated embodiments, the mating connector (not shown) includes: a mating mother housing and a mating sub connector. The mating mother housing is used for mating with the mother housing. The mating sub connector can be detachably inserted into the mating mother housing for mating with the sub connector. The mating sub connector includes: a mating sub housing, a mating terminal, and a mating shielding shell. The mating sub housing is used to mate with the sub housing 21. The mating terminal is fixed to the mating sub housing for mating with the first terminal 22. The mating shielding shell is fixed to the mating sub housing and surrounds the mating terminal for mating with the shielding shell 23.

Claims

1. A sub connector, comprising: a sub housing (21); a first terminal (22) fixed in the sub housing (21); and a shielding shell (23) fixed to the sub housing (21) and at least partially enclosing the first terminal (22), wherein the sub connector (2) is adapted to be detachably inserted into a mother housing (11) to form a connector with the mother housing (11), wherein the sub connector (2) has a sub connecting end (201) for electrically connecting with an electrical component (3) and a sub mating end (202) for electrically mating with a mating connector; wherein the sub housing (21) comprises of: a first peripheral wall (211, 212) which defines a first inner cavity; and characterized by a first holder (213) which is located in the first inner cavity and connected to the first peripheral wall (211, 212), wherein the first terminal (22) is located in the first inner cavity and fixed to the first holder (213), wherein at least a part of the shielding shell (23) is located in the first inner cavity and fixed to the first holder (213), wherein the first holder (213) and the shielding shell (23) extend axially beyond one end (211a) of the first peripheral wall (211, 212), and the first holder (213) is accommodated in the shielding shell (23).

2. The sub connector according to claim 1, wherein an elastic buckle (214) is formed on the first peripheral wall (211, 212), and a locking surface (214a) is formed on the elastic buckle (214); wherein the locking surface (214a) is adapted to abut against a mating locking surface (114a) formed on the mother housing (11) to lock the sub connector (2) in a predetermined position; wherein the first peripheral wall (211, 212) comprises of: an insertion part (211) adapted to be inserted into a sub connector slot (102) formed in a second holder (113) of the mother housing (11); and a base part (212) which is connected to one end of the insertion part (211) and adapted to be positioned outside the sub connector slot (102), wherein a positioning surface (212a) is formed on the base part (212), the positioning surface (212a) is adapted to abut against a mating positioning surface (112a) formed on the second holder (113) to position the sub connector (2) at the predetermined position.

3. The sub connector according to claim 2, wherein a first terminal slot is formed on the first holder (213), and a part of the first terminal (22) is inserted and fixed into the first terminal slot; and wherein a shielding shell slot (2101, 2102) is formed on the insertion part (211) of the first peripheral wall (211, 212), and a part of the shielding shell (23) is inserted and fixed into the shielding shell slot (2101, 2102).

4. The sub connector according to claim 3, wherein the shielding shell (23) includes a pair of opposite first sidewalls (231, 232), one sidewall (231) of which has a first tongue (2310), and the shielding shell slot (2101, 2102) includes a first slot (2101) for mating with the first tongue (2310); wherein the other sidewall (232) of the pair of first sidewalls (231, 232) extends to one end (211a) of the first peripheral wall (211, 212) and is not inserted into the first peripheral wall (211, 212).

5. The sub connector according to claim 4, wherein the shielding shell (23) includes a pair of opposite second sidewalls (233); wherein the second sidewall (233) has a second tongue (2330), and the shielding shell slot (2101, 2102) includes a second slot (2102) for mating with the second tongue (2330); wherein a barbed protrusion (2311) is formed on the first tongue (2310) and / or the second tongue (2330), and the barbed protrusion (2311) is engaged with the inner wall of the shielding shell slot (2101, 2102).

6. The sub connector according to claim 1, wherein an elastic contact part (234) is formed on the shielding shell (23), which is used for electrical contact with a mating shielding shell of a mating sub connector in the mating connector; wherein the shielding shell (23) is an integral piece.

7. The sub connector according to any one of claims 1 to 6, wherein the sub housing (21) is formed with a first positioning post (215) at the sub connecting end (201), the first positioning post (215) is adapted to mate with an insertion hole formed in the electrical component (3) to fix the sub connector (2) on the electrical component (3).

8. The sub connector according to any one of claims 1 to 6, wherein the first terminal (22) in the sub connector (2) is a differential signal terminal, and the sub connector (2) includes a pair of differential signal terminals.

9. A connector, comprising: a mother housing (11); and the sub connector (2) according to any one of claims 1-8, wherein the sub connector (2) is detachably inserted into the mother housing (11) to form a connector with the mother housing (11).

10. The connector according to claim 9, wherein the connector (1) has a connecting interface (110) for electrically connecting with an electrical component (3) and a mating interface (120) for electrically mating with a mating connector; wherein the sub connecting end (201) and the sub mating end (202) of the sub connector (2) are respectively arranged in the connecting interface (110) and the mating interface (120) of the connector (1).

11. The connector according to claim 9, further comprising: a second terminal (12) which is fixed in the mother housing (11), wherein the function of the second terminal (12) is different from that of the first terminal (22).

12. The connector according to claim 9, wherein the connector (1) includes multiple sub connectors (2), each of which is detachably inserted into the mother housing (11); and wherein the multiple sub connectors (2) are identical, allowing them to be interchangeably used.

13. The connector according to claim 9, wherein the mother housing (11) comprises of: a second peripheral wall (111) which defines a second inner cavity; and a second holder (113) located in the second inner cavity and connected to the second peripheral wall (111), wherein a sub connector slot (102) is formed in the second holder (113), and the sub connector (2) is inserted into the sub connector slot (102), wherein the connector further comprises a second terminal (12) located in the second inner cavity and fixed to the second holder (113), wherein a second terminal slot (101) is formed in the second holder (113), and a part of the second terminal (12) is inserted and fixed into the second terminal slot (101).

14. The connector according to claim 11, wherein a first positioning post (215), a first terminal pin (225), and a shielding pin (235) are respectively formed on the sub housing (21), the first terminal (22), and the shielding shell (23) of the sub connector (2) for plugging into corresponding holes formed in an electrical component (3); wherein a second positioning post (115) and a second terminal pin (125) are respectively formed on the mother housing (11) and the second terminal (12) for plugging into corresponding holes formed in the electrical component (3); and wherein the first positioning post (215), the second positioning post (115), the shielding pin (235), the first terminal pin (225), and the second terminal pin (125) extend along the axial direction of the connector (1) or are bent 90 degrees relative to the axial direction of the connector (1).