Terminal assembly, connector, male connector, female connector and connector assembly

Abstract

The present invention discloses a terminal assembly, a connector, a male connector, a female connector and a connector assembly. The terminal assembly comprises of: an outer terminal (11, 21) including a cylindrical body (110, 210); an insulator (13, 23) provided in the outer terminal (11, 21); a central terminal (12, 22) provided in the insulator (13, 23); and a cable (14, 24) having a conductor core (141, 241) and a shielding layer (143, 243). The cylindrical body (110, 210) has a welding part (112, 212) that is sleeved and welded to the exposed shielding layer (143, 243) of the cable (14, 24); the central terminal (12, 22) is electrically connected to the exposed conductor core (141, 241) of the cable (14, 24). In the present invention, due to the outer terminal being welded onto the shielding layer of the cable, the size of the connector is reduced, the manufacturing cost of the connector is reduced, and the manufacturing efficiency of the connector is improved; In addition, the central terminal can be connected to the cable conductor by crimping or welding to improve mechanical performance; Moreover, the present invention can also reduce the contact resistance between the outer terminal and the shielding layer, as well as between the central terminal and the conductor core, greatly improving the high-frequency performance of the connector.

Description

[0001] TERMINAL ASSEMBLY, CONNECTOR, MALE CONNECTOR, FEMALE CONNECTOR AND CONNECTOR ASSEMBLY

[0002] CROSS-REFERENCE TO RELATED APPLICATION

[0003] This application claims the benefit of Chinese Patent Application No. CN202311052863.9 filed on August 18, 2023 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference.

[0004] BACKGROUND OF THE INVENTION

[0005] Field of the Invention

[0006] The present invention relates to a terminal assembly, a connector comprising the terminal assembly and a connector assembly comprising the connector.

[0007] Description of the Related Art

[0008] In the prior art, a connector typically includes a housing and a terminal assembly inserted into the housing. Terminal assembly typically includes an outer terminal, an insulator, a central terminal, and a cable. The insulator is set in the outer terminal, and the center terminal is set in the insulator. The rear end of the outer terminal is crimped onto the shielding layer (or braided layer) of the cable through a crimping ring, while the rear end of the central terminal is crimped onto the conductor core of the cable. However, the crimping process requires the use of specialized crimping equipment, resulting in higher costs and lower crimping efficiency. In addition, after crimping, the contact resistance between the outer terminal and the shielding layer, as well as between the central terminal and the conductor core, is high, which leads to poor high-frequency performance of the connector.

[0009] SUMMARY OF THE INVENTION

[0010] The present invention has been made to overcome or alleviate at least one aspect of the above mentioned disadvantages.

[0011] According to an aspect of the present invention, there is provided a terminal assembly. The terminal assembly comprises of: an outer terminal including a cylindrical body; an insulator provided in the outer terminal; a central terminal provided in the insulator; and a cable having a conductor core and a shielding layer. The cylindrical body has a welding part that is sleeved and welded to the exposed shielding layer of the cable; the central terminal is electrically connected to the exposed conductor core of the cable. According to an exemplary embodiment of the present invention, the central terminal has axially opposite front and rear ends, and the rear end of the central terminal is crimped or welded onto the exposed conductor core of the cable.

[0012] According to another exemplary embodiment of the present invention, each of the outer terminal and the central terminal is an integral formed piece.

[0013] According to another exemplary embodiment of the present invention, an observation window is formed on the welding part of the outer terminal to observe the welding situation between the welding part and the shielding layer.

[0014] According to another exemplary embodiment of the present invention, the cylindrical body has axially opposite front and rear ends, and the rear end of the cylindrical body is sheathed and crimped onto the outer insulation layer of the cable.

[0015] According to another exemplary embodiment of the present invention, the welding part of the cylindrical body is adjacent and connected to the rear end of the cylindrical body.

[0016] According to another exemplary embodiment of the present invention, circular positioning flanges are formed on the rear end and middle part of the cylindrical body, respectively; the outer peripheral surfaces of the positioning flanges are suitable for resting against an inner peripheral surface of a connector housing to radially position the terminal assembly.

[0017] According to another exemplary embodiment of the present invention, the positioning flange on the middle part of the cylindrical body are suitable for engagement with an elastic locking buckle on the connector housing to lock the terminal assembly in the connector housing.

[0018] According to another aspect of the present invention, there is provided a connector. The connector comprises of: a housing; and the above terminal assembly which is inserted into the housing.

[0019] According to another aspect of the present invention, there is provided a male connector. The male connector comprises of: a housing; and the terminal assembly which is inserted into the housing. The outer terminal and the central terminal of the male connector are suitable for insertion into an outer terminal and a central terminal of a female connector, respectively.

[0020] According to another exemplary embodiment of the present invention, an elastic locking buckle and a positioning step are formed in the housing, and the positioning step is axially opposite to and separated from the end face of the elastic locking buckle; the positioning flange on the outer terminal of the male connector is engaged in a gap between the end face of the elastic locking buckle and the positioning step to lock the terminal assembly in the housing.

[0021] According to another exemplary embodiment of the present invention, a window is formed on the outer wall of the housing, and the elastic locking buckle is suspended in the window and exposed through the window, so that the elastic locking buckle can be driven to an unlocking position separated from the positioning flange by an unlocking tool inserted into the window.

[0022] According to another aspect of the present invention, there is provided a female connector. The female connector comprises of: a housing; and the terminal assembly which is inserted into the housing. The outer terminal and the central terminal of the female connector are suitable for electrical contact with an outer terminal and a central terminal of the inserted male connector, respectively.

[0023] According to another exemplary embodiment of the present invention, multiple dividing slits axially extending are formed on the front end portion of the cylindrical body of the outer terminal of the female connector to separate the front end portion of the cylindrical body into multiple main elastic arms; an auxiliary elastic arm is formed on the main elastic arm, and the main elastic arm and the auxiliary elastic arm are suitable for simultaneous electrical contact with the outer terminal of the inserted male connector.

[0024] According to another exemplary embodiment of the present invention, an opening is formed on the main elastic arm, and the auxiliary elastic arm is suspended in the opening and connected to the side edge of the opening.

[0025] According to another exemplary embodiment of the present invention, an elastic locking buckle and a slot hole are formed on the outer peripheral wall of the housing, and the elastic locking buckle is adapted to be moved between a locking position engaged with the slot hole and an unlocking position separated from the slot hole; two positioning flanges are formed on the middle part of the cylindrical body of the outer terminal of the female end connector, and the two positioning flanges are axially opposite and spaced apart; when the elastic locking buckle is moved to the locking position, the end portion of the elastic locking buckle is engaged in a recess between the two positioning flanges to lock the terminal assembly in the housing.

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

[0027] In the aforementioned exemplary embodiments of the present invention, the outer terminal is welded onto the shielding layer of the cable, reducing the size of the connector, lowering the manufacturing cost of the connector, and improving the manufacturing efficiency of the connector. Moreover, the present invention can also reduce the contact resistance between the outer terminal and the shielding layer, as well as between the central terminal and the conductor core, greatly improving the high-frequency performance of the connector.

[0028] 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:

[0030] Figure 1 shows an illustrative perspective view of a male connector according to an exemplary embodiment of the present invention;

[0031] Figure 2 shows an axial sectional view of a male end connector according to an exemplary embodiment of the present invention; Figure 3 shows an illustrative exploded view of a male connector according to an exemplary embodiment of the present invention;

[0032] Figure 4 shows an illustrative perspective view of a terminal assembly of a male connector according to an exemplary embodiment of the present invention;

[0033] Figure 5 shows an axial sectional view of the terminal assembly of a male connector according to an exemplary embodiment of the present invention;

[0034] Figure 6 shows an illustrative perspective view of a female connector according to an exemplary embodiment of the present invention;

[0035] Figure 7 shows an axial sectional view of a female end connector according to an exemplary embodiment of the present invention;

[0036] Figure 8 shows an illustrative exploded view of a female connector according to an exemplary embodiment of the present invention;

[0037] Figure 9 shows an illustrative perspective view of a terminal assembly of a female connector according to an exemplary embodiment of the present invention; and

[0038] Figure 10 shows an axial sectional view of the terminal assembly of a female connector according to an exemplary embodiment of the present invention.

[0039] DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE IVENTION

[0040] 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.

[0041] 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.

[0042] According to a general concept of the present invention, there is provided a terminal assembly. The terminal assembly comprises of: an outer terminal including a cylindrical body; an insulator provided in the outer terminal; a central terminal provided in the insulator; and a cable having a conductor core and a shielding layer. The cylindrical body has a welding part that is sleeved and welded to the exposed shielding layer of the cable; the central terminal is electrically connected to the exposed conductor core of the cable.

[0043] According to another general concept of the present invention, there is provided a connector. The connector comprises of: a housing; and the above terminal assembly which is inserted into the housing. According to another general concept of the present invention, there is provided a male connector. The male connector comprises of: a housing; and the terminal assembly which is inserted into the housing. The outer terminal and the central terminal of the male connector are suitable for insertion into an outer terminal and a central terminal of a female connector, respectively.

[0044] According to another general concept of the present invention, there is provided a female connector. The female connector comprises of: a housing; and the terminal assembly which is inserted into the housing. The outer terminal and the central terminal of the female connector are suitable for electrical contact with an outer terminal and a central terminal of the inserted male connector, respectively.

[0045] According to another general concept of the present invention, there is provided a connector assembly. The connector assembly comprises of: the above male connector; and the above female connector which is mated with the male connector.

[0046] Embodiment of male connector

[0047] Figures 1 to 5 show a male connector 1 according to an exemplary embodiment of the present invention. Among them, Figure 1 shows an illustrative perspective view of a male connector 1 according to an exemplary embodiment of the present invention; Figure 2 shows an axial sectional view of the male connector 1 according to an exemplary embodiment of the present invention; Figure 3 shows a schematic diagram of the decomposition of the male connector 1 according to an exemplary embodiment of the present invention; Figure 4 shows an illustrative perspective view of the terminal assembly 100 of the male connector 1 according to an exemplary embodiment of the present invention; Figure 5 shows an axial sectional view of the terminal assembly 100 of the male connector 1 according to an exemplary embodiment of the present invention.

[0048] As shown in Figures 1 to 5, in an exemplary embodiment of the present invention, a terminal assembly 100 of a male connector 1 is disclosed. The terminal assembly 100 includes: an outer terminal 11, a central terminal 12, an insulator 13, and cable 14. The outer terminal 11 includes a cylindrical body 110. The insulator 13 is installed in outer terminal 11. The central terminal 12 is installed in the insulator 13. The cable 14 includes a conductor core 141, an inner insulation layer 142 wrapped around the conductor core 141, a shielding layer 143 wrapped around the inner insulation layer 142, and an outer insulation layer 144 wrapped around the shielding layer 143.

[0049] As shown in Figures 1 to 5, in the illustrated embodiments, the cylindrical body 110 has a welding part 112, which is sheathed and welded to the exposed shielding layer 143 of the cable 14. The central terminal 12 is electrically connected to the exposed conductor core 141 of the cable 14.

[0050] As shown in Figures 1 to 5, in the illustrated embodiments, the center terminal 12 has axially opposite front and rear ends, and the rear end 121 of the center terminal 12 is crimped or welded to the exposed conductor core 141 of the cable 14. The front end 122 of the center terminal 12 is used to mate with the center terminal 22 of the female connector 2.

[0051] As shown in Figures 1 to 5, in the illustrated embodiments, each of the outer terminal 11 and the central terminal 12 is an integral formed piece. For example, each of the outer terminal 11 and the central terminal 12 can be an integral stamped piece or an integral machined piece.

[0052] As shown in Figures 1 to 5, in the illustrated embodiments, an observation window 113 is formed on the welding part 112 of the outer terminal 11 to observe the welding situation between the welding part 112 and the shielding layer 143.

[0053] As shown in Figures 1 to 5, in the illustrated embodiments, the cylindrical body 110 has axially opposite front and rear ends, and the rear end 111 of the cylindrical body 110 is sheathed and crimped onto the outer insulation layer 144 of the cable 14.

[0054] As shown in Figures 1 to 5, in the illustrated embodiments, the welding part 112 of the cylindrical body 110 is adjacent and connected to the rear end 111 of the cylindrical body 110.

[0055] As shown in Figures 1 to 5, in the illustrated embodiments, annular positioning flanges Ila are formed on the rear end 111 and the middle part of the cylindrical body 110, respectively. The outer peripheral surface of the positioning flange Ila is suitable for resting against the inner peripheral surface of the housing 10 of the male connector 1 to radially position the terminal assembly 100.

[0056] As shown in Figures 1 to 5, in the illustrated embodiments, the positioning flange Ila on the middle part of the cylindrical body 110 is suitable for engagement with an elastic locking buckle 101 on the housing 10 of the male connector 1 to lock the terminal assembly 100 in the housing 10 of the male connector 1.

[0057] As shown in Figures 1 to 5, in another exemplary embodiment of the present invention, a male connector 1 is also disclosed. The male connector 1 includes a housing 10 and a terminal assembly 100. The terminal assembly 100 is inserted into the housing 10. The outer terminal 11 and the central terminal 12 of the male connector 1 are suitable for insertion into an outer terminal 21 and a central terminal 22 of a female connector 2, respectively.

[0058] As shown in Figures 1 to 5, in the illustrated embodiments, an elastic locking buckle 101 and a positioning step 102a are formed in the housing 10, and the positioning step 102a is axially opposite and separated from the end face 101a of the elastic locking buckle 101. The positioning flange Ila on the outer terminal 11 of the male connector 1 is engaged in the gap 103 between the end face 101a of the elastic locking buckle 101 and the positioning step 102a to lock the terminal assembly 100 in the housing 10.

[0059] As shown in Figures 1 to 5, in the illustrated embodiments, a window 102 is formed on the outer peripheral wall of the housing 10, and the elastic locking buckle 101 is suspended in the window 102 and exposed through the window 102, so that the elastic locking buckle 101 can be driven to the unlocking position separated from the positioning flange Ila by an unlocking tool (not shown) inserted into the window 102.

[0060] As shown in Figures 1 to 5, in the illustrated embodiments, the outer terminal 11 is welded to the shielding layer 143 of the cable 14, reducing the size of the male connector 1, lowering the manufacturing cost of the male connector 1, and improving the manufacturing efficiency of the male connector 1. Moreover, the present invention can also reduce the contact resistance between the outer terminal 11 and the shielding layer 143, as well as between the central terminal 12 and the conductor core 141, greatly improving the high-frequency performance of the male connector 1.

[0061] Embodiment of female connector

[0062] Figures 6 to 10 show the female connector 2 according to an exemplary embodiment of the present invention. Among them, Figure 6 shows an illustrative perspective view of the female connector 2 according to an exemplary embodiment of the present invention; Figure 7 shows an axial sectional view of the female connector 2 according to an exemplary embodiment of the present invention; Figure 8 shows a schematic diagram of the decomposition of the female connector 2 according to an exemplary embodiment of the present invention; Figure 9 shows an illustrative perspective view of the terminal assembly 200 of the female connector 2 according to an exemplary embodiment of the present invention; Figure 10 shows an axial sectional view of the terminal assembly 200 of the female connector 2 according to an exemplary embodiment of the present invention.

[0063] As shown in Figures 6 to 10, in an exemplary embodiment of the present invention, a terminal assembly 200 of a female connector 2 is disclosed. The terminal assembly 200 includes: an outer terminal 21, a central terminal 22, an insulator 23, and a cable 24. The outer terminal 21 includes a cylindrical body 210. The insulator 23 is installed in the outer terminal 21. The central terminal 22 is installed in the insulator 23. The cable 24 includes a conductor core 241, an inner insulation layer 242 wrapped around the conductor core 241, a shielding layer 243 wrapped around the inner insulation layer 242, and an outer insulation layer 244 wrapped around the shielding layer 243.

[0064] As shown in Figures 6 to 10, in the illustrated embodiment, the cylindrical body 210 has a welding part 212, which is sheathed and welded to the exposed shielding layer 243 of the cable 24. The central terminal 22 is electrically connected to the exposed conductor core 241 of cable 24.

[0065] As shown in Figures 6 to 10, in the illustrated embodiments, the center terminal 22 has axially opposite front and rear ends, and the rear end 221 of the center terminal 22 is crimped or welded to the exposed conductor core 241 of the cable 24. The front end 222 of the center terminal 22 is used to mate with the center terminal 12 of the male connector 1.

[0066] As shown in Figures 6 to 10, in the illustrated embodiments, each of the outer terminal 21 and the central terminal 22 is an integral formed piece. For example, each of the outer terminal 21 and the central terminal 22 can be an integral stamped piece or an integral machined piece.

[0067] As shown in Figures 6 to 10, in the illustrated embodiment, an observation window 213 is formed on the welding part 212 of the outer terminal 21 to observe the welding situation between the welding part 212 and the shielding layer 243.

[0068] As shown in Figures 6 to 10, in the illustrated embodiments, the cylindrical body 210 has axially opposite front and rear ends, and the rear end 211 of the cylindrical body 210 is sheathed and crimped onto the outer insulation layer 244 of the cable 24.

[0069] As shown in Figures 6 to 10, in the illustrated embodiment, the welding part 212 of the cylindrical body 210 is adjacent and connected to the rear end 211 of the cylindrical body 210.

[0070] As shown in Figures 6 to 10, in the illustrated embodiments, annular positioning flanges 21a are formed on the rear end 211 and the middle part of the cylindrical body 210, respectively. The outer peripheral surface of the positioning flange 21a is suitable for resting against the inner peripheral surface of the housing 20 of the female connector 2 to radially position the terminal assembly 200.

[0071] As shown in Figures 6 to 10, in the illustrated embodiment, the positioning flange 21a on the middle part of the cylindrical body 210 is suitable for engagement with the elastic locking buckle 201 on the housing 20 of the female connector 2 to lock the terminal assembly 200 in the housing 20 of the female connector 2.

[0072] As shown in Figures 6 to 10, in another exemplary embodiment of the present invention, there is also disclosed a female connector 2, which comprises a housing 20 and a terminal assembly 200. The terminal assembly 200 is inserted into the housing 20. The outer terminal 21 and the central terminal 22 of the female connector 2 are suitable for electrical contact with an outer terminal 11 and a central terminal 12 of the inserted male connector 1, respectively.

[0073] As shown in Figures 6 to 10, in the illustrated embodiments, multiple dividing seams 214d axially extending are formed on the front end portion 214 of the cylindrical body 210 of the outer terminal 21 of the female connector 2 to separate the front end portion 214 of the cylindrical body 210 into multiple main elastic arms 214a. An auxiliary elastic arm 214b is formed on the main elastic arm 214a, and the main elastic arm 214a and the auxiliary elastic arm 214b are suitable for simultaneous electrical contact with the outer terminal 11 of the inserted male connector 1.

[0074] As shown in Figures 6 to 10, in the illustrated embodiments, an opening 214c is formed on the main elastic arm 214a, and the auxiliary elastic arm 214b is suspended in the opening 214c and connected to the side edge of the opening 214c.

[0075] As shown in Figures 6 to 10, in the illustrated embodiments, an elastic locking buckle 201 and a slot hole 202 are formed on the outer peripheral wall of the housing 20. The elastic locking buckle 201 is adapted to be moved between a locking position engaged with the slot hole 202 and an unlocking position separated from the slot hole 202. There are two positioning flanges 21a formed on the middle part of the cylindrical body 210 of the outer terminal 21 of the female connector 2, and the two positioning flanges 21a are axially opposite and spaced apart. When the elastic locking buckle 201 is moved to the locking position, the end portion 201a of the elastic locking buckle 201 is engaged in the recess 21b between the two positioning flanges 2 la to lock the terminal assembly 200 in the housing 20.

[0076] As shown in Figures 6 to 10, in the illustrated embodiments, the outer terminal 21 is welded to the shielding layer 243 of the cable 24, reducing the size of the female connector 2, lowering the manufacturing cost of the female connector 2, and improving the manufacturing efficiency of the female connector 2. Moreover, the present invention can also reduce the contact resistance between the outer terminal 21 and the shielding layer 243, as well as between the central terminal 22 and the conductor core 241, greatly improving the high-frequency performance of the female connector 2.

[0077] Embodiment of connector assembly

[0078] As shown in Figures 1 to 10, in an exemplary embodiment of the present invention, a connector assembly is disclosed. The connector assembly includes: the male connector 1 shown in Figures 1-5 and the female connector 2 shown in Figures 6-10. The male connector 1 is mated with the female connector 2.

[0079] It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrated, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.

[0080] Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

[0081] As used herein, an element recited in the singular and proceeded with the word "a" or "an" should be understood as not excluding plural of said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to "one embodiment" of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular property may include additional such elements not having that property.

Claims

What is claimed is,1. A terminal assembly, comprising: an outer terminal (11, 21) including a cylindrical body (110, 210); an insulator (13, 23) provided in the outer terminal (11, 21); a central terminal (12, 22) provided in the insulator (13, 23); and a cable (14, 24) having a conductor core (141, 241) and a shielding layer (143, 243), wherein the cylindrical body (110, 210) has a welding part (112, 212) that is sleeved and welded to the exposed shielding layer (143, 243) of the cable (14, 24), wherein the central terminal (12, 22) is electrically connected to the exposed conductor core (141, 241) of the cable (14, 24).

2. The terminal assembly according to claim 1, wherein the central terminal (12, 22) has axially opposite front and rear ends, and the rear end (121, 221) of the central terminal (12, 22) is crimped or welded onto the exposed conductor core (141, 241) of the cable (14, 24).

3. The terminal assembly according to claim 1, wherein each of the outer terminal (11, 21) and the central terminal (12, 22) is an integral formed piece.

4. The terminal assembly according to claim 1, wherein an observation window (213) is formed on the welding part (112, 212) of the outer terminal (11, 21) to observe the welding situation between the welding part (112, 212) and the shielding layer (143, 243).

5. The terminal assembly according to claim 1, wherein the cylindrical body (110, 210) has axially opposite front and rear ends, and the rear end (111, 211) of the cylindrical body (110, 210) is sheathed and crimped onto the outer insulation layer (144, 244) of the cable (14, 24).

6. The terminal assembly according to claim 5, wherein the welding part (112, 212) of the cylindrical body (110, 210) is adjacent and connected to the rear end (111, 211) of the cylindrical body (110, 210).

7. The terminal assembly according to claim 5, wherein circular positioning flanges (Ila, 21a) are formed on the rear end (111, 211) and middle part of the cylindrical body (110, 210), respectively; the outer peripheral surfaces of thepositioning flanges (Ila, 21a) are suitable for resting against an inner peripheral surface of a connector housing (10, 20) to radially position the terminal assembly (100, 200).

8. The terminal assembly according to claim 7, wherein the positioning flange (Ila, 21a) on the middle part of the cylindrical body (110, 210) are suitable for engagement with an elastic locking buckle (101, 201) on the connector housing (10, 20) to lock the terminal assembly (100, 200) in the connector housing (10, 20).

9. A connector, comprising: a housing (10, 20); and the terminal assembly (100, 200) as claimed in any one of claims 1-8 which is inserted into the housing (10, 20).

10. A male connector, comprising: a housing (10); and the terminal assembly (100) as claimed in any one of claims 1-8 which is inserted into the housing (10), wherein the outer terminal (11) and the central terminal (12) of the male connector (1) are suitable for insertion into an outer terminal (21) and a central terminal (22) of a female connector (2), respectively.

11. The male connector according to claim 10, wherein an elastic locking buckle (101) and a positioning step (102a) are formed in the housing (10), and the positioning step (102a) is axially opposite to and separated from the end face (101a) of the elastic locking buckle (101); wherein the positioning flange (Ila) on the outer terminal (11) of the male connector (1) is engaged in a gap (103) between the end face (101a) of the elastic locking buckle (101) and the positioning step (102a) to lock the terminal assembly (100) in the housing (10).

12. The male connector according to claim 11, wherein a window (102) is formed on the outer wall of the housing (10), and the elastic locking buckle (101) is suspended in the window (102) and exposed through the window (102), so that the elastic locking buckle (101) can be driven to an unlocking position separated from the positioning flange (Ila) by an unlocking tool inserted into the window (102).

13. A female connector, comprising: a housing (20); and the terminal assembly (200) as claimed in any one of claims 1-8 which is inserted into thehousing (20), wherein the outer terminal (21) and the central terminal (22) of the female connector (2) are suitable for electrical contact with an outer terminal (11) and a central terminal (12) of the inserted male connector (1), respectively.

14. The female connector according to claim 13, wherein multiple dividing slits (214d) axially extending are formed on the front end portion (214) of the cylindrical body (210) of the outer terminal (21) of the female connector (2) to separate the front end portion (214) of the cylindrical body (210) into multiple main elastic arms (214a); wherein an auxiliary elastic arm (214b) is formed on the main elastic arm (214a), and the main elastic arm (214a) and the auxiliary elastic arm (214b) are suitable for simultaneous electrical contact with the outer terminal ( 11 ) of the inserted male connector ( 1 ) .

15. The female connector according to claim 14, wherein an opening (214c) is formed on the main elastic arm (214a), and the auxiliary elastic arm (214b) is suspended in the opening (214c) and connected to the side edge of the opening (214c).

16. The female connector according to claim 13, wherein an elastic locking buckle (201) and a slot hole (202) are formed on the outer peripheral wall of the housing (20), and the elastic locking buckle (201) is adapted to be moved between a locking position engaged with the slot hole (202) and an unlocking position separated from the slot hole (202); wherein two positioning flanges (21a) are formed on the middle part of the cylindrical body (210) of the outer terminal (21) of the female end connector (2), and the two positioning flanges (21a) are axially opposite and spaced apart; wherein when the elastic locking buckle (201) is moved to the locking position, the end portion (201a) of the elastic locking buckle (201) is engaged in a recess (21b) between the two positioning flanges (21a) to lock the terminal assembly (200) in the housing (20).

17. A connector assembly, comprising: the male connector (1) as claimed in claim 10; and the female connector (2) as claimed in claim 13 which is mated with the male connector (1).

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