Electrical connector assembly and electrical connector therefor

Abstract

The application provides an electric connector assembly and an electric connector thereof, which comprises an insulating body, a terminal assembly and a locking member arranged on the insulating body. The insulating body has a clamping arm extending towards a direction away from a mating end of the insulating body to lock the terminal assembly once. The locking member is assembled on the insulating body along a height direction to lock the terminal assembly twice. The electric connector assembly and the electric connector thereof can reliably transmit high-speed signals.

Description

Technical Field

[0001] This invention relates to an electrical connector assembly and the electrical connector thereof. Background Technology

[0002] Electrical connectors are indispensable components in electronic and electrical devices. With the continuous upgrading of electronic and electrical devices, electrical connectors have developed into a fairly mature product. For electrical connectors, the ability to maintain stable, reliable, and high-speed transmission of signals or current is essential.

[0003] Electrical connector assemblies typically consist of mating plug connectors and socket connectors. Traditional plug and socket connectors do not have sufficient locking force when inserted, which can easily lead to poor electrical contact. Especially under high voltage conditions, a larger locking force is required to prevent the plug and socket connectors from coming loose and causing poor electrical contact.

[0004] In view of this, it is necessary to improve the existing electrical connector assemblies and their connectors to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an electrical connector assembly and its electrical connector capable of reliably transmitting high-speed signals.

[0006] To achieve the above-mentioned objective, the present invention provides an electrical connector comprising an insulating body, a terminal assembly, and a locking member mounted on the insulating body. The insulating body has a retaining arm extending toward a direction away from its mating end to form a primary locking arm for locking the terminal assembly. The locking member is assembled to the insulating body along the height direction to provide a secondary locking arm for locking the terminal assembly.

[0007] As a further improvement of the present invention, the locking member includes a plate portion, a pair of locking arms extending perpendicularly to the plate portion and disposed opposite to each other, and a pair of retaining walls located behind the pair of locking arms to stop the terminal assembly. The locking arms are movably engaged with the insulating body to be fixed in a first position and a second position.

[0008] As a further improvement of the present invention, when the pair of locking arms are locked in the first position, the locking member does not perform secondary locking on the terminal assembly; when the pair of locking arms slide from the first position to the second position along the height direction, the retaining wall performs secondary locking on the terminal assembly.

[0009] As a further improvement of the present invention, the insulating body includes a main body, a docking part located on the front side of the main body, and a receiving part located on the rear side of the main body. The main body is provided with a first latching hole and a second latching hole on both sides in the lateral direction. When the latching part protruding outward of the latching arm is locked in the first latching hole, it is fixed in a first position. When the latching part is locked in the second latching hole, it is fixed in a second position.

[0010] As a further improvement of the present invention, the main body is recessed on one side in the height direction for the fastener to be inserted, and the holding arm is exposed outward in the height direction through the fastening space.

[0011] As a further improvement of the present invention, the installation space includes a first receiving groove for receiving the plate body, a pair of second receiving grooves for receiving the corresponding locking arms, and a third receiving groove for receiving the corresponding retaining wall, wherein the second receiving groove and the third receiving groove are connected to the first receiving groove.

[0012] As a further improvement of the present invention, the terminal assembly includes an insulating inner core, at least one pair of conductive terminals fixed to the insulating inner core, a first shielding shell sleeved on the middle and rear portion of the insulating inner core, and a second shielding shell sleeved on the front portion of the first shielding shell and outside the front portion of the insulating inner core.

[0013] As a further improvement of the present invention, the first shielding housing has a first shielding section located at the front, a second shielding section located at the rear, and a neck connecting the first shielding section and the second shielding section. The first shielding section covers the outside of the insulating inner core, and the neck is located on the rear side of the insulating inner core. The terminal assembly also has a shielding member housed inside the second shielding housing to contact the shielding layer of the cable.

[0014] As a further improvement of the present invention, the terminal assembly also has a contact collar sleeved outside the second shielding housing, wherein a plurality of elastic contact arms are protruding on the outer peripheral surface of the contact collar to abut against the docking terminal after docking.

[0015] To achieve the above-mentioned objectives, the present invention also provides an electrical connector assembly, comprising a male connector and a female connector that are interlocked. The male connector includes a male insulating body, a male terminal assembly, and a first locking member mounted on the male insulating body. The female connector includes a female insulating body and a female terminal assembly fixed to the female insulating body. The female connector also has a second locking member mounted on the female insulating body. Both the male and female insulating bodies have a retaining arm extending in a direction away from their mating ends to lock the male / female terminal assembly in a primary manner. The first locking member and the second locking member are respectively assembled in opposite directions on the male insulating body and the female insulating body to lock the male / female terminal assembly in a secondary manner.

[0016] The beneficial effects of the present invention are as follows: The electrical connector assembly and its connector of the present invention provide a retaining arm on the insulating body that extends in a direction away from its mating end to lock the terminal assembly in the first stage, and a locking member assembled on the insulating body in the height direction to lock the terminal assembly in the second stage, thereby stably holding the terminal assembly in the insulating body, thereby ensuring the stability and reliability of the electrical connection. Attached Figure Description

[0017] Figure 1 This is a perspective view of the male and female connectors of the electrical connector assembly of the present invention after they are mated.

[0018] Figure 2 yes Figure 1 A perspective view of the male and female connectors in the electrical connector assembly shown, when they are not mated.

[0019] Figure 3 yes Figure 2 The exploded 3D view of the male connector shown.

[0020] Figure 4 yes Figure 3 The male connector shown is viewed from another angle.

[0021] Figure 5 yes Figure 4 An exploded perspective view of the terminal assembly of the male connector shown.

[0022] Figure 6 yes Figure 2 The cross-sectional view of the male connector shown.

[0023] Figure 7 yes Figure 2 A 3D view of the female connector shown.

[0024] Figure 8 yes Figure 7 The front view of the female connector shown.

[0025] Figure 9 yes Figure 7 The female connector shown is viewed from another angle.

[0026] Figure 10 yes Figure 7 The exploded 3D view of the female connector shown.

[0027] Figure 11 yes Figure 10 The female connector shown is viewed from another angle.

[0028] Figure 12 yes Figure 10 An exploded perspective view of the terminal assembly of the female connector shown.

[0029] Figure 13 yes Figure 12 The diagram shows a partial assembly of the female connector.

[0030] Figure 14 yes Figure 1 The diagram shows a perspective view of the electrical connector assembly after the insulating body has been removed. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 14 The diagram shows a preferred embodiment of the electrical connector assembly of the present invention. The electrical connector assembly includes a male connector 100 and a female connector 200 that are plugged into each other. For ease of explanation, when the male connector 100 and the female connector 200 are described separately below, their mating ends are used as the front end and the end opposite to the mating end is used as the rear end. That is, the mating direction is the front-back direction, one direction perpendicular to the front-back direction is the height direction, and the other direction perpendicular to the front-back direction is the lateral direction. When the male connector 100 and the female connector 200 are described simultaneously, the description is from the perspective of the male connector.

[0033] In this invention, the male connector 100 and the female connector 200 have the same components and assembly relationship, and can be collectively referred to as electrical connectors to describe the same structure.

[0034] Specifically, both the male connector 100 and the female connector 200 (i.e., the electrical connector) include an insulating body 1, a terminal assembly 2, and a locking member 3 mounted on the insulating body 1. The insulating body 1 has a retaining arm 102 extending in a direction away from its mating end to lock the terminal assembly 2 for the first time. The locking member 3 is assembled on the insulating body 1 along the height direction to lock the terminal assembly 2 for the second time.

[0035] In the following description of both the male connector 100 and the female connector 200, the male insulating body of the male connector 100 may be marked as 1a and the female insulating body of the female connector 200 may be marked as 1b for distinction.

[0036] In general, the male connector 100 includes a male insulating body 1a, a male terminal assembly 2a, and a first locking member 3a installed on the male insulating body 1a. The female connector 200 includes a female insulating body 1b, a female terminal assembly 2b fixed to the female insulating body 1b, and a second locking member 3b installed on the female insulating body 1b. Both the male and female insulating bodies 1b have a retaining arm 102 extending in a direction away from their mating ends to lock the male / female terminal assembly 2 once. The first and second locking members 3a and 3b are assembled on the male and female insulating bodies 1a and 1b in opposite directions to lock the male / female terminal assembly 2 twice.

[0037] Specifically, please refer to Figures 1 to 4 , Figure 6 , Figures 9 to 11 as well as Figure 14 As shown, the locking member 3 includes a plate portion 31, a pair of locking arms 32 extending perpendicularly to the plate portion 31 and arranged opposite to each other, and a pair of retaining walls 33 located behind the pair of locking arms 32 to stop the terminal assembly 2. The locking arms 32 are movably engaged with the insulating body 1 to be fixed in a first position and a second position.

[0038] The plate portion 31 includes a main plate portion 311 and a forward protrusion 312 extending forward from the front end of the main plate portion 311. The main plate portion 311 is rectangular, and the forward protrusion 312 extends forward from the middle portion of the main plate portion 311.

[0039] The pair of locking arms 32 are positioned on both sides of the locking member 3 in the lateral direction and protrude from both sides of the plate body 31 in the lateral direction. The pair of retaining walls 33 are located at the rear end of the locking member 3 and are spaced apart in the lateral direction, and the locking arms 32 and the retaining walls 33 on the same side are spaced apart in the front-back direction.

[0040] Each of the retaining walls 33 has an arc-shaped notch 331 on its inner side in the lateral direction, and the arc-shaped notches 331 of the pair of retaining walls 22 are arranged facing each other. The locking member 3 also has a recessed portion 34 formed from its rear end face forward, the recessed portion 34 is located above and communicates with the pair of notches 331, the depth of the recessed portion 34 in the front-rear direction is smaller than the depth of the notches 331 in the front-rear direction, and the minimum spacing between the pair of retaining walls 33 in the lateral direction is smaller than the width of the recessed portion in the lateral direction.

[0041] When the pair of locking arms 32 are locked in the first position, the locking member 3 does not perform secondary locking on the terminal assembly 2; when the pair of locking arms 32 slide from the first position to the second position along the height direction, the retaining wall 33 performs secondary locking on the terminal assembly 2.

[0042] The insulating body 1 includes a main body 11, a docking part 12 located on the front side of the main body 11, and a receiving part 13 located on the rear side of the main body 11. The main body 11 has a first latching hole 112 and a second latching hole 113 on both sides in the lateral direction. When the latching part 321 of the latching arm 32 protrudes outward and is locked in the first latching hole 112, it is fixed in a first position. When the latching part 321 is locked in the second latching hole 113, it is fixed in a second position.

[0043] The main body 11 has a recessed mounting space 114 on one side in the height direction for the locking member 3 to be inserted, and the clamping arm 102 is exposed outward in the height direction through the mounting space 114.

[0044] The installation space 114 includes a first receiving groove 1141 for receiving the plate part 31, a pair of second receiving grooves 1142 for receiving the corresponding locking arm 32, and a third receiving groove 1143 for receiving the corresponding retaining wall 33. The second receiving grooves 1142 and the third receiving groove 1143 are all connected to the first receiving groove 1141.

[0045] Since the insulating body 1 of the male connector 100 and the insulating body 1 of the female connector 200 are not the same in specific structure, their differences will be described separately below.

[0046] Please refer to Figures 2 to 4 and Figure 6As shown, in the male connector 100, the mating portion 12 has an outer mating portion 121 in a first receiving cavity 1201 and an inner mating portion 122 located in the first receiving cavity 1201. The inner mating portion 122 is hollow to have a second mating cavity 1202. The inner mating portion 122 extends forward from the main body portion 11 and is disposed in the first receiving cavity 1201, so as to be spaced apart from the inner wall surface of the outer mating portion 121.

[0047] The outer docking portion 121 has a first limiting groove 1211 recessed in its bottom wall and communicating with the first receiving cavity 1201, a pair of second limiting grooves 1212 and a pair of third limiting grooves 1213 located on both sides of the first receiving cavity 1201 in the lateral direction. The pair of second limiting grooves 1212 are recessed diagonally in the inner wall surface of the outer docking portion 121 and communicating with the first receiving cavity 1201. The pair of third limiting grooves 1213 are also recessed diagonally in the inner wall surface of the outer docking portion 121 and communicating with the first receiving cavity 1201. In the height direction, the second limiting groove 1212 is located outside its adjacent third limiting groove 1213, that is, away from the inner docking portion 122.

[0048] In addition, the male connector 100 has a protective beam 125 on its top of the mating part 12. The protective beam 125 is arched and stands on the top surface of the mating part 12. The bottom of the protective beam 125 is recessed upward to form a clearance channel 1251.

[0049] Please refer to Figures 7 to 11 As shown, in the female connector 200, the mating part 12 is tubular, and a first limiting block 1211' at its bottom, a pair of second limiting blocks 1212' and a pair of third limiting blocks 1213' on both sides in its lateral direction are formed on its outer surface, so as to be inserted into the first, second, and third limiting grooves 1211, 1212 and 1213 of the male connector 100, respectively.

[0050] The main body 11 of the female connector 200 is provided with a protective beam 115 on its top, and the protective beam 115 is arched and stands on the top surface of the main body 11. The mating part 12 of the female connector 200 is provided with a rearwardly extending pressing arm 126 on its top. The pressing arm 126 is a cantilever structure with a fixed end at the front end and a free end at the rear end, so as to have a certain elasticity. The pressing arm 126 extends rearward and passes through the space below the protective beam 115, and its rear end protrudes from the rear side of the protective beam 115.

[0051] Furthermore, the pressing arm 126 includes a fixed section 1261 located at the front and an operating section 1262 located at the rear. The upper surface of the fixed section 1261 is higher than the upper surface of the operating section 1262, so as to form a step surface 1263 at the connection between the fixed section 1261 and the operating section 1262. A protruding ridge 1264 extending in the front-rear direction is formed on the upper surface of the fixed section 1261. The ridge 1264 is located in the middle of the fixed section 1261 in the transverse direction, and its upper surface is inclined with the front lower than the rear.

[0052] When the female connector 200 mates with the male connector 100, the protrusion 1264 enters and passes through the clearance channel 1251. Since the rear of the protrusion 1264 is higher, it is pressed by the protective beam 125, causing the pressing arm 26 to move downward. This causes the fixing segment 1261 to move along the insertion direction and undergo elastic deformation to pass over the protective beam 125 of the male connector 100. The step surface 1263 and the protective beam 125 block the female connector 200 and the male connector 100 from separating in a direction away from the insertion direction.

[0053] Please refer to Figures 3 to 6 and Figures 10 to 14 As shown, the terminal assembly 2 includes an insulating inner core 21, at least one pair of conductive terminals 22 fixed to the insulating inner core 21, a first shielding shell 23 sleeved on the middle and rear part of the insulating inner core 21, and a second shielding shell 24 sleeved on the front part of the first shielding shell 23 and the front part of the insulating inner core 21. The contact portion 221 on the front side of the conductive terminal 22 protrudes from the front side of the insulating inner core 21, and the wiring portion 223 of the conductive terminal 22 is housed inside the insulating inner core 21.

[0054] The second shielding housing 24 has a stop portion 241 protruding from one side in its height direction, and the insulating body 1 has a stop surface 103 (e.g., facing rearward to abut against the stop portion 241) Figure 6 (As shown). In addition, the second shielding housing 24 also has a pair of mating grooves 242 recessed from its front end to the rear, the pair of mating grooves 242 being disposed on both sides of the second shielding housing 24 in the height direction.

[0055] The first shielding shell 23 has a first shielding section 231 at the front, a second shielding section 232 at the rear, and a neck 234 connecting the first shielding section 231 and the second shielding section 232. The neck 234 is constricted relative to both the first shielding section 231 and the second shielding section 232.

[0056] The first shielding section 231 has a pair of positioning grooves 2312 recessed from its front side to the rear. The insulating inner core 21 has a terminal groove 211 formed through it in the front-rear direction and a pair of protrusions 212 protruding on both sides in its lateral direction to be confined within the corresponding positioning grooves 2312. The number of terminal grooves 211 is the same as the number of conductive terminals 22 to accommodate the corresponding conductive terminals 22.

[0057] The first shielding section 231 covers the outside of the insulating inner core 21, the neck 234 is located on the rear side of the insulating inner core 21, and the terminal assembly 2 also has a shielding member 25 housed inside the second shielding housing to contact the shielding layer of the cable (not shown), the shielding member 25 being made of metal.

[0058] The shielding component 25 includes a shielding tube 251 located at the rear and a flat tube 252 located at the front. The shielding tube is annular and fits over the cable. The horizontal width of the flat tube 252 is the same as the outer diameter of the shielding tube 251, and its vertical height is less than the outer diameter of the shielding tube 251, thus clamping the cable. Furthermore, the shielding tube 251 and the flat tube 252 are spaced apart in the front-to-back direction to form a gap 253, and the shielding tube 251 and the flat tube 252 are connected to each other by a pair of connecting bridges 254 located on opposite sides in the horizontal direction.

[0059] The retaining portion 1021, formed by the downward protrusion of the rear end of the retaining arm 102, protrudes into the third receiving groove 1143. When the locking member 3 is installed on the insulating body 1, the front surface of the retaining wall 33 is stopped and limited by the limiting surface 104 inside the insulating body 1, and the retaining portion 1021 enters the space between the pair of retaining walls 33. Further, when the terminal assembly 2 is inserted into the insulating body 1 from back to front, the second shielding housing 24 passes forward past the retaining portion 1021 at the rear end of the retaining arm 102. The retaining portion 1021 and the retaining wall 33 are both located on the rear side of the second shielding housing 24 to block it, so as to prevent the terminal assembly 2 from being dislodged. The neck 234 is received in the notch 331. At the same time, the bottom end of the retaining portion 1021 is lower than the top surface of the first shielding section 231 to limit it on the rear side of the connection between the first shielding section 231 and the neck 234.

[0060] The second shielding shell 24 completely houses the insulating inner core 21, that is, the rear end face of the second shielding shell 24 is located behind the rear end face of the insulating inner core 21. The first shielding shell 23 wraps the rear half of the insulating inner core 21 inside it and stops and limits it within the first shielding section 231 through the neck 234.

[0061] In this invention, the number of conductive terminals 22 in the terminal assembly 2 can be set according to usage requirements, but all can be installed inside the insulating body 1. That is, the insulating body 1 can be adapted to terminal assemblies 2 with different numbers of conductive terminals 22, and can be used as a standard part, thus having strong versatility. At the same time, the locking member 3 can also be used as a standard part, and it can be pre-installed on the insulating body 1 by cooperating with the first snap-fit ​​hole 112 to improve the convenience of use and avoid loss.

[0062] Furthermore, unlike the male connector 100, the terminal assembly (i.e., the female terminal assembly) of the female connector 200 also has a contact collar 26 sleeved outside the second shielding housing 24. The outer peripheral surface of the contact collar 26 protrudes to form several elastic contact arms 261. These contact arms 261 are exposed within the mating space of the mating portion 12 of the female connector 200, so as to abut against the mating terminals (i.e., the male terminal assembly) after mating. This results in better electromagnetic shielding of the male and female terminal assemblies, lower contact impedance, and more stable electrical connection.

[0063] Specifically, the contact arm 261 includes a first contact arm 2611 and a second contact arm 2612. The contact collar 26 has a pair of first contact arms 2611 on its top and bottom walls and a second contact arm 2612 on each of its two side walls. The pair of first contact arms 261 on its top / bottom walls are arranged side by side in the lateral direction, and the extension direction of the second contact arm 2612 on its side walls is the same as the extension direction of the first contact arm 2611 on the top / bottom walls.

[0064] The contact collar 26 also has a pair of retaining portions 262 located at its front end. The pair of retaining portions 262 are arranged opposite each other in the height direction. Each retaining portion 262 is L-shaped and located within the internal space of the contact collar 26. When the contact collar 26 is assembled onto the second shielding housing 24 from front to back, the retaining portions 262 enter the corresponding mating grooves 242 to limit the contact collar 26 and the second shielding housing 24.

[0065] like Figure 14 As shown, when the male terminal assembly 2a and the female terminal assembly 2b are mated, the contact collar 26 is inserted into the second shielding housing 24 of the male terminal assembly 2a and abuts against the inner wall surface of the second shielding housing 24 of the male terminal assembly 2a through the elastic contact arm 261.

[0066] Further, please refer to Figure 1 , Figure 2 and combined Figure 14As shown, the locking member 3 (first locking member 3a) of the male connector 100 is assembled on the male insulating body 1a from top to bottom, and the locking member 3 (second locking member 3b) of the female connector 200 is installed on the female insulating body 1b from bottom to top.

[0067] The present invention provides an electrical connector assembly and its connector by providing a retaining arm 102 on an insulating body 1 that extends toward the direction away from its mating end to lock the terminal assembly 2 for the first time, and by using a locking member 3 assembled in the height direction to the insulating body 1 to lock the terminal assembly 2 for the second time, thereby stably holding the terminal assembly in the insulating body 1, and thus ensuring the stability and reliability of the electrical connection.

[0068] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrical connector comprising an insulating body, a terminal assembly, and a locking member mounted on the insulating body, characterized in that: The insulating body has a retaining arm extending away from its mating end to lock the terminal assembly for a primary locking. The locking member is assembled to the insulating body along the height direction to lock the terminal assembly for a secondary locking. The insulating body has a main body portion, and the main body portion has a recessed mounting space on one side in the height direction for the locking member to be inserted. When the locking member is not installed on the insulating body, the retaining arm is exposed outward in the height direction through the mounting space. When the locking member is installed on the insulating body, the locking member covers and limits the retaining arm. The locking member includes a plate portion, a pair of locking arms extending perpendicularly to the plate portion and arranged opposite each other, and a pair of retaining walls located behind the pair of locking arms to stop the terminal assembly. The rear end of the retaining arm protrudes downward to form a retaining portion. When the locking member is installed on the insulating body, the front surface of the retaining wall is stopped and limited by the limiting surface in the insulating body, and the retaining portion enters the gap space between the pair of retaining walls.

2. The electrical connector as described in claim 1, characterized in that: The locking arm is movably engaged with the insulating body to be fixed in a first position and a second position.

3. The electrical connector as described in claim 2, characterized in that: When the pair of locking arms are locked in the first position, the locking mechanism does not perform secondary locking on the terminal assembly; when the pair of locking arms slide from the first position to the second position along the height direction, the retaining wall performs secondary locking on the terminal assembly.

4. The electrical connector as described in claim 2, characterized in that: The insulating body also includes a docking portion located on the front side of the main body and a receiving portion located on the rear side of the main body. The main body is provided with a first latching hole and a second latching hole on both sides in the lateral direction. When the latching arm protrudes outward and is locked in the first latching hole, it is fixed in a first position. When the latching part is locked in the second latching hole, it is fixed in a second position.

5. The electrical connector as described in claim 4, characterized in that: The pair of retaining walls are located at the rear end of the locking member and are spaced apart in the lateral direction, and the locking arm and the retaining wall on the same side are spaced apart in the front-back direction.

6. The electrical connector as described in claim 5, characterized in that: The installation space includes a first receiving groove for accommodating the plate body, a pair of second receiving grooves for accommodating the corresponding locking arms, and a third receiving groove for accommodating the corresponding retaining wall. The second and third receiving grooves are connected to the first receiving groove, and the holding part protrudes into the third receiving groove.

7. The electrical connector as described in any one of claims 1 to 5, characterized in that: The terminal assembly includes an insulating inner core, at least one pair of conductive terminals fixed to the insulating inner core, a first shielding shell sleeved on the middle and rear part of the insulating inner core, and a second shielding shell sleeved on the front part of the first shielding shell and the front part of the insulating inner core; when the terminal assembly is inserted into the insulating body from back to front, the second shielding shell passes forward past the holding part at the rear end of the holding arm, and the holding part and the barrier are both located on the rear side of the second shielding shell to block it.

8. The electrical connector as claimed in claim 7, characterized in that: The first shielding housing has a first shielding section at the front, a second shielding section at the rear, and a neck connecting the first shielding section and the second shielding section. The first shielding section covers the outside of the insulating inner core, and the neck is located on the rear side of the insulating inner core. The terminal assembly also has a shielding member housed inside the second shielding housing to contact the shielding layer of the cable.

9. The electrical connector as claimed in claim 7, characterized in that: The terminal assembly also has a contact collar sleeved outside the second shielding housing, and the outer peripheral surface of the contact collar protrudes to form a plurality of elastic contact arms to abut against the docking terminal after docking.

10. An electrical connector assembly comprising a male connector and a female connector that are mated together, the male connector comprising a male insulating body, a male terminal assembly, and a first locking member mounted on the male insulating body, the female connector comprising a female insulating body and a female terminal assembly fixed to the female insulating body, characterized in that: The female connector also has a second locking member mounted on the female insulating body. Both the male and female insulating bodies have retaining arms extending away from their mating ends to provide a primary locking of the male / female terminal assembly. The first and second locking members are respectively assembled to the male and female insulating bodies in opposite directions along the height direction to provide a secondary locking of the male / female terminal assembly. Both the male and female insulating bodies have a main body portion, and the main body portion has a recessed mounting space on one side along its height direction for the first / second locking member to be inserted. When the first / second locking member is not mounted on the male / female insulating body, the retaining arm is positioned at the height... The first / second locking member is exposed outward through the installation space in the degree direction; when the first / second locking member is installed on the male / female insulation body, the first / second locking member covers and limits the holding arm; the first and second locking members each include a plate body, a pair of locking arms extending perpendicularly to the plate body and arranged opposite each other, and a pair of retaining walls located behind the pair of locking arms to stop the terminal assembly. The rear end of the holding arm protrudes downward to form a holding part. When the first and second locking members are respectively installed on the male and female insulation bodies, the front surface of the retaining wall is stopped and limited by the limiting surface in the male / female insulation body, and the holding part enters the gap space between the pair of retaining walls.

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