CN110212349A - A kind of connector assembly - Google Patents

Abstract

The invention relates to a connector assembly, the connector assembly includes a plug connector and a socket connector, the plug connector includes a plug housing, the socket connector includes a socket housing, and one of the plug housing and the socket housing has an internal device There is a contact locking piece, and the other one is provided with a push-fitting part. The contact locking piece includes a locking plate, and the locking plate is provided with an avoidance space and a stopper. The contact locking piece is provided with a When the plug connector and the receptacle connector are plugged in, the push part is pushed and matched with the push fit part, so that when the plug connector and the receptacle connector are plugged, the push fit connector drives the locking plate to move and blocks the corresponding contacts. When the plug connector and the socket connector are plugged in, the pushing part and the pushing fitting part on the corresponding connector push and cooperate to drive the locking plate to move from the avoidance position to the stop position. The locking plate stops the contact piece in the connector housing, preventing the contact piece from falling out.

Description

a connector assembly

technical field

The present invention relates to a connector assembly.

Background technique

Existing electrical connectors are composed of three basic units: a housing, an insulator and a contact, wherein the contact is generally assembled in the housing through the insulator. For example, the Chinese invention patent application document with the application publication number CN106129683A discloses an electrical connector and its insulator. The electrical connector includes an insulator and a contact piece. The insulator is provided with a contact piece whose axis extends along the front and rear directions for the contact piece to wear. The installation hole, the contact piece includes a contact piece body, and at least two elastic claws for fixing the contact piece on the insulator are arranged on the contact piece body at intervals along its circumference.

The above-mentioned contacts are only fixed on the insulator by the elastic claws. When the contact is subjected to a large external force along the insertion direction, the elastic claws may be deformed and cause failure, so that the contacts cannot be firmly fixed in the insulator, resulting in failure of the connector. normal work.

Contents of the invention

The purpose of the present invention is to provide a connector assembly to solve the problem in the prior art that the contacts are only fixed on the insulator by means of claws, which may easily cause the contacts to not be securely fixed in the insulator and cause the connector to fail to work normally. .

To achieve the above object, the technical solution of the connector assembly of the present invention is:

The connector assembly includes a plug connector and a receptacle connector for corresponding plugging. The plug connector and the receptacle connector each use their front ends as plug-in ends. The plug contact mounting hole on the plug insulator is equipped with a plug contact that is anti-backward through the spring claw. The plug contact has a large diameter section and a small diameter section forming a transitional step surface; the socket connector includes a socket housing, and the socket housing is equipped with There is a socket insulator, and the mounting hole of the socket contact on the socket insulator is equipped with a socket contact that is anti-backward through the claws. The socket contact has a large diameter section and a small diameter section forming a transitional step surface. The plug shell and the socket shell One of the bodies is provided with a contact locking piece, and the other is provided with a push-fitting part. The connector with a contact locking piece is defined as a contact locking connector, and the connection with a push-fitting The connector is a push-fit connector, and the contact lock includes a lock plate that is used to be movably assembled in the contact lock connector along the direction perpendicular to the insertion direction of the connector. When the contact is assembled in the contact mounting hole of the locking connector, there is an avoidance space for the contact, and there is also a stopper for blocking and matching with the transitional step surface between the large diameter section and the small diameter section on the contact , the contact locking part is also provided with a pushing part for forming an inclined pressing structure with the pushing fitting part on the pushing fitting connector when the plug connector and the receptacle connector are inserted, so that the plug When the connector is plugged into the receptacle connector, the push-fit connector drives the locking plate to move, and the corresponding contact piece is stopped by the stopper.

The beneficial effect is that: when the plug connector and the receptacle connector are plugged together by setting the contact lock piece in the connector, the pushing part of the contact lock piece pushes against the push fitting part on the mating connector Cooperate with the driving locking plate to move, so that the locking plate can stop and limit the contact piece in the connector housing through the stopper to form a secondary anti-off structure. The contact piece is limited and stopped in the connector housing, preventing the contact piece from coming out.

The locking plate is provided with a piercing hole for piercing the corresponding contact piece, the piercing hole constitutes the avoidance space, and the edge of the piercing hole constitutes the stop portion. The hole edge of the piercing hole increases the contact area between the locking plate and the contact piece, which ensures the stability of the blocking cooperation between the locking plate and the contact piece.

An avoidance groove for avoiding the small-diameter section of the contact piece is provided on the hole wall of each piercing hole near the pushing part, and the avoidance groove has a groove width larger than the small-diameter section of the contact piece and smaller than the large-diameter section of the contact piece. It is ensured that when the diameter of the contact piece is relatively thin, the groove edge of the avoidance groove can also be used to block and cooperate with the large diameter section of the contact piece.

The escape groove between two adjacent piercing holes is an escape groove connecting two adjacent piercing holes along the moving direction of the locking plate. Facilitate the processing of avoidance grooves.

The corresponding side of the locking plate is provided with a push arm extending toward the connector insertion end along the connector insertion direction, so that the contact locking piece is L-shaped, and the push portion is arranged on the push arm superior. By setting the push arm, it is convenient for the contact lock piece to push fit with the push fit portion on the adapter connector.

The push arm is a push plate, and the push plate is provided with a push groove extending along the insertion direction, and the end of the push groove away from the stop plate is an open structure, and the push groove constitutes the push portion , the push fitting portion is a push rod that pushes and fits with the push groove. The pushing fit of the pushing groove and the pushing rod can prevent the locking plate from shaking during the movement.

The pushing groove is a trapezoidal groove, and the corresponding pushing rod is a trapezoidal rod. It is further ensured that the locking plate will not shake during the movement.

The pushing groove has a groove bottom wall, and the corresponding end of the groove bottom wall corresponding to the opening structure of the pushing groove is provided with a guiding slope for matching with the pushing fitting part on the adapter connector. It is convenient to guide the pushing arm to push and cooperate with the pushing matching part so that the pushing arm drives the locking plate to move.

To achieve the above object, the technical solution of the connector assembly of the present invention is:

The connector assembly includes a plug connector and a receptacle connector for corresponding plugging. The plug connector and the receptacle connector each use their front ends as plug-in ends. The plug contact mounting hole on the plug insulator is equipped with a plug contact that is anti-backward through the spring claw. The plug contact has a large diameter section and a small diameter section forming a transitional step surface; the socket connector includes a socket housing, and the socket housing is equipped with There is a socket insulator, and the mounting hole of the socket contact on the socket insulator is equipped with a socket contact that is prevented from retreating through the claws. The socket contact has a large-diameter section and a small-diameter section that form a transitional step surface. The plug housing is also provided with The plug contact locking piece, the plug contact locking piece includes a plug locking plate that is movably assembled in the plug connector along the insertion direction perpendicular to the plug connector. When the plug contact is assembled in the contact installation hole of the contact piece, the plug avoidance space of the plug contact piece is avoided, and there is also a plug stopper for blocking and matching with the transition step surface between the large diameter section and the small diameter section on the plug contact piece , the plug locking plate has a plug assembly position where the plug contact is assembled through the plug avoidance space and a transition step surface between the plug stopper and the large diameter section and the small diameter section of the plug contact along the plug in its movable stroke. The plug stop position for blocking and matching in the connection direction, and the plug contact locking part is also provided with a slope for pressing against the push-fitting part of the socket on the socket connector when the plug connector and the socket connector are inserted. The plug pushing part of the structure; the socket housing is also provided with a socket contact lock, and the socket contact lock includes a socket lock that is movably assembled in the socket connector along the insertion direction perpendicular to the socket connector. The socket locking plate is provided with a socket avoidance space for avoiding the socket contact when the socket contact is assembled in the contact mounting hole of the socket connector, and is also provided with a large diameter section and a small diameter on the socket contact. The transitional step surface between the sections stops the matching socket stopper, and the socket locking plate has a socket assembly position for assembling the socket contacts through the socket avoidance space on its movable stroke and connects the socket contacts with the socket stopper. The transition step surface between the large diameter section and the small diameter section of the large diameter section and the small diameter section block the mating socket stop position along the insertion direction, and the socket contact locking piece is also provided with a With the plug push-fitting part on the plug connector, the socket push-up part of the inclined-plane push-down structure is formed; Cooperate with the driving socket locking plate to move from the socket assembly position to the socket stop position to realize the socket stop part blocking the socket contact, and the socket push-push fitting part of the socket connector and the plug push-push part push and cooperate with the drive plug to lock The board moves from the plug assembly position to the plug stop position so that the plug stop part stops the plug contact.

The beneficial effect is that: when the plug connector and the receptacle connector are plugged together by setting the contact lock piece in the connector, the pushing part of the contact lock piece pushes against the push fitting part on the mating connector Cooperate with the driving lock plate to move from the avoidance position to the stop position, so that the lock plate can stop and limit the contact piece in the connector housing through the stop part to form a secondary anti-off structure. After the claw deforms and fails, The contact piece is limited and stopped in the connector housing by the contact piece locking piece, which prevents the contact piece from falling out.

The plug locking plate is provided with a plug piercing hole for the plug contact to be pierced, the plug piercing hole constitutes the plug avoidance space, and the hole edge of the plug piercing hole constitutes the plug stopper ; The socket locking plate is provided with a socket piercing hole for the socket contact piece to wear, the socket piercing hole constitutes the socket avoidance space, and the hole edge of the socket piercing hole constitutes the socket stop department. The hole edge of the piercing hole increases the contact area between the locking plate and the contact piece, which ensures the stability of the blocking cooperation between the locking plate and the contact piece.

A plug avoidance groove for avoiding the small-diameter section of the plug contact is provided on the wall of each plug-through hole close to the plug pushing part, and the plug avoidance groove has a diameter larger than the small-diameter section of the plug contact and smaller than the diameter of the plug contact The groove width of the diameter section; each socket piercing hole is provided with a socket avoidance groove for avoiding the small-diameter section of the socket contact piece on the wall of the side hole close to the socket push part, and the socket avoidance groove has a diameter larger than the small-diameter section of the socket contact piece. And it is smaller than the groove width of the large diameter section of the socket contact piece. It is ensured that when the diameter of the contact piece is relatively thin, the groove edge of the avoidance groove can also be used to block and cooperate with the large diameter section of the contact piece.

The plug avoidance groove between two adjacent plug penetration holes is a plug avoidance groove connecting two adjacent plug penetration holes along the moving direction of the plug locking plate; the socket between two adjacent socket penetration holes The dodging groove is a socket dodging groove connecting two adjacent socket piercing holes along the moving direction of the socket locking plate. Facilitate the processing of avoidance grooves.

The corresponding side of the plug locking plate is provided with a plug pushing arm extending toward the insertion end of the plug connector along the insertion direction, so that the locking part of the plug contact is L-shaped, and the plug pushing part is arranged on the on the push arm of the plug described above. By setting the push arm, it is convenient for the contact lock piece to push fit with the push fit portion on the adapter connector.

The plug pushing arm is a plug pushing plate, and the plug pushing plate is provided with a plug pushing groove extending along the insertion direction, and the end of the plug pushing groove far away from the plug locking plate is an open structure, and the plug pushing The groove constitutes the plug pushing part, and the plug pushing fitting part is a plug pushing rod; the socket pushing arm is a socket pushing plate, and the socket pushing plate is provided with a socket pushing rod extending along the insertion direction. One end of the socket pushing groove away from the socket locking plate is an open structure, the socket pushing groove constitutes the socket pushing part, and the socket pushing matching part is a socket pushing rod. The pushing fit of the pushing groove and the pushing rod can prevent the locking plate from shaking during the movement.

Both the plug pushing groove and the socket trapezoidal groove are trapezoidal grooves, and the corresponding plug pushing rods and socket pushing rods are both trapezoidal rods. It is further ensured that the locking plate will not shake during the movement.

The plug pushing slot has a bottom wall of the plug slot, and the corresponding end of the bottom wall of the plug slot corresponding to the opening structure of the plug pushing slot is provided with a plug guiding slope for matching with the plug pushing fitting part; the socket The pushing groove has a bottom wall of the socket groove, and the corresponding end of the bottom wall of the socket groove corresponding to the opening structure of the socket pushing groove is provided with a socket guiding slope for matching with the pushing fitting part of the socket. It is convenient to guide the pushing arm to push and cooperate with the pushing matching part so that the pushing arm drives the locking plate to move.

Description of drawings

Fig. 1 is a schematic structural view of a connector assembly of the present invention;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is a schematic structural view of the socket connector of the present invention;

Figure 4 is a sectional view of the bottom view of Figure 3;

Fig. 5 is a cross-sectional view of the unlocked state after the left view of Fig. 3 is turned 90° counterclockwise;

Fig. 6 is a schematic structural diagram of the unlocked state after removing the insulator in Fig. 3;

Fig. 7 is a cross-sectional view of the locking state after the left view of Fig. 3 is turned counterclockwise by 90°;

Fig. 8 is a structural schematic diagram of the locking state after removing the insulator in Fig. 3;

FIG. 9 is a schematic structural view of the plug connector of the present invention;

Figure 10 is a sectional view of the top view of Figure 9;

Figure 11 is a cross-sectional view of the unlocked state after the left view of Figure 9 is turned clockwise by 90°;

Fig. 12 is a schematic structural diagram of the unlocked state after removing the insulator in Fig. 9;

Fig. 13 is a cross-sectional view of the locking state after the left view of Fig. 9 is turned clockwise by 90°;

Fig. 14 is a schematic structural view of the locking state after removing the insulator in Fig. 9;

Fig. 15 is a schematic structural view of the contact lock of the present invention;

Fig. 16 is a structural schematic diagram of another viewing angle of the contact locking member of the present invention.

In the figure: 101-socket connector; 1-socket shell; 2-socket insulator; 3-socket push plate; 31-socket push plate guide slope; 32-socket push groove; 4-socket push rod; 41 - socket push rod guide slope; 5 - socket locking plate; 61 - small diameter section of socket contact piece; 62 - large diameter section of socket contact piece; 7 - socket avoidance channel; 8 - socket penetration hole; 9 - socket reinforcement Rib; 102-plug connector; 21-plug housing; 22-plug insulator; 23-plug push plate; 231-plug push plate guide slope; 24-plug push rod; 241-plug push rod guide slope ; 25-plug locking plate; 261-small-diameter section of plug contact piece; 262-large-diameter section of plug contact piece;

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

A specific embodiment of the connector assembly of the present invention, as shown in Figure 1, the connector assembly includes a receptacle connector 101 and a plug connector 102, and the receptacle connector 101 and the plug connector 102 respectively constitute a connector and an adapter connector . As shown in Figures 2 to 4, the socket connector 101 includes a socket housing 1, a socket contact lock and a socket insulator 2 installed in the socket housing 1, and the socket contact lock is pressed through the socket insulator 2 In the socket housing 1, the socket housing 1 is provided with a socket push rod 4 arranged along the insertion direction, the socket push rod 4 constitutes the socket push fitting part, and the socket push rod 4 is provided with a socket push rod The rod guiding slope 41; the locking part of the socket contact piece is L-shaped, including the socket locking plate 5 and the socket pushing plate 3 arranged along the insertion direction, the socket pushing plate 3 constitutes the pushing arm, and the socket pushing plate 3 A socket push plate guide slope 31 is provided on the top. In other embodiments, the locking member of the socket contact only includes a socket locking plate, and a pushing portion is provided on the socket locking plate.

As shown in FIGS. 9 to 10 , the plug connector 102 includes a plug housing 21 , a plug contact lock and a plug insulator 22 installed in the plug housing 21 , and the plug contact lock is press-fitted through the plug insulator 22 Inside the plug housing 21, the plug housing 21 is provided with a plug push rod 24 arranged along the insertion direction. The plug push rod 24 constitutes a plug push fitting part. The rod guide slope 241; the locking part of the plug contact piece is L-shaped, including the plug locking plate 25 and the plug pushing plate 23 arranged along the insertion direction, the plug pushing plate 23 constitutes the pushing arm, and the plug pushing plate 23 A plug push plate guide slope 231 is provided on it.

In this embodiment, taking the socket contact locking piece as an example, as shown in Figure 15 and Figure 16, the socket contact locking piece includes a socket locking plate 5 and a socket pushing plate 3 arranged along the insertion direction, the socket The push plate 3 constitutes a push arm, and the socket push plate 3 is provided with a socket push groove 32 extending along the insertion direction on the side facing away from the socket lock plate 5, and the socket push groove 32 is far away from the socket lock. One end of the stop plate 5 is an open structure, and the socket pushing groove 32 constitutes a pushing portion, and the pushing cooperation between the socket pushing groove 32 and the plug pushing rod 24 can prevent the locking plate from shaking during the movement. In other embodiments, no socket pushing groove is provided on the socket pushing plate, and one side of the socket pushing plate constitutes a pushing portion. In this embodiment, in order to facilitate the pushing cooperation between the socket push groove 32 and the plug push rod 24, the end of the socket push groove 32 far away from the socket locking plate 5 is provided with a socket push plate guide slope 31, and the corresponding plug push plate guide slope 31 is provided. The push rod 24 is provided with a plug push rod guide slope 241, which is convenient for guiding the socket push groove 32 to cooperate with the plug push rod 24 so that the socket push plate 3 drives the socket locking plate 5 to move. In other embodiments, one of the socket pushing groove and the plug pushing rod is provided with a guiding slope. In this embodiment, the socket pushing groove 32 is a trapezoidal groove, and the corresponding plug pushing rod 24 is a trapezoidal rod, so as to further ensure that the socket locking plate 5 will not shake during the moving process. In other embodiments, the socket pushing groove is a semicircular groove, and the corresponding plug pushing rod is a cylindrical rod or a semi-cylindrical rod.

In this embodiment, in order to increase the strength of the socket push plate 3, socket reinforcing ribs 9 are provided on both sides of the socket push plate 3 to ensure that the socket push plate 3 and the plug push rod 24 are not easily deformed or deformed. Fracture, improve the service life. In this embodiment, the socket locking plate 5 is provided with socket piercing holes 8 corresponding to the socket contacts. The socket piercing holes 8 constitute an avoidance space. The hole edge of the piercing hole 8 increases the contact area between the socket locking plate 5 and the socket contact, which ensures the stability of the blocking cooperation between the socket locking plate and the socket contact. In other embodiments, the socket locking plate is provided with a plurality of stop rods arranged perpendicular to the moving direction of the socket lock plate, the space between two adjacent stop rods constitutes an avoidance space, and each stop rod constitutes the stopper. In this embodiment, the hole wall of each socket piercing hole 8 close to the socket push plate 3 is provided with a socket escape channel 7 for avoiding the small diameter section 61 of the socket contact piece. The socket avoidance channel 7 constitutes an avoidance groove, and the socket avoidance channel The groove width of the groove 7 is larger than the small-diameter section 61 of the socket contact piece and smaller than the large-diameter section 62 of the socket contact piece, so that when the diameter of the socket contact piece is thinner, the groove edge of the through groove 7 and the large-diameter section 62 of the socket contact piece can also be avoided by the socket. Block fit. In other embodiments, the avoidance groove is a non-through escape groove.

When the plug connector 102 and the socket connector 101 are plugged together, as shown in Figures 5 to 8, the socket push plate 3 and the plug push rod 24 push and guide and cooperate, so that the socket push plate 3 drives the socket locking plate 5 moves along the direction perpendicular to the insertion, so that the socket piercing hole 8 on the socket locking plate 5 avoids the small diameter section 61 of the socket contact and makes the hole of the socket piercing hole 8 be inserted along the large diameter section 62 of the socket contact. The connection direction is blocked and matched to realize the socket contact piece from the unlocked state to the locked state; if the diameter of the socket contact piece is relatively small, the groove edge of the socket avoidance channel 7 can be inserted into the large diameter section 62 of the socket contact piece Direction stop mate. As shown in Figures 11 to 14, the plug push plate 23 is pushed and guided with the socket push rod 4, so that the plug push plate 23 drives the plug lock plate 25 to move along the direction perpendicular to the insertion direction, thereby locking the plug. The plug piercing hole 28 on the plate 25 avoids the small diameter section 261 of the plug contact piece and makes the hole of the plug piercing hole 28 block and cooperate with the large diameter section 262 of the plug contact piece along the insertion direction, so as to realize the unlocking of the plug contact piece. state to the locked state; if the diameter of the plug contact is thinner, the groove edge of the plug avoidance channel 27 can be used to block and cooperate with the large diameter section 262 of the plug contact along the insertion direction.

In other embodiments, the contact locking member may only be provided on the plug connector or the receptacle connector.

In this embodiment, the secondary locking of the plug and the socket is realized by setting the plug contact locking piece and the socket contact locking piece respectively in the plug and the socket. The locking piece and the socket contact piece The locking piece limits and stops the plug contact piece and the socket contact piece respectively in the plug housing and the socket housing, avoiding the prolapse of the plug contact piece and the socket contact piece.

Claims (10)

1. The connector assembly includes a plug connector and a socket connector for corresponding plugging. The plug connector and the socket connector each use their front ends as the plug-in end. The plug connector includes a plug housing, and the plug housing is equipped with The plug insulator, the plug contact mounting hole on the plug insulator is equipped with a plug contact that is anti-backward through the bullet claw, and the plug contact has a large diameter section and a small diameter section forming a transitional step surface; the socket connector includes a socket housing, a socket The housing is provided with a socket insulator, and the mounting hole of the socket contact on the socket insulator is equipped with a socket contact that is prevented from retreating through the claws. The socket contact has a large-diameter section and a small-diameter section that form a transitional step surface. It is characterized in that: One of the plug housing and the receptacle housing is provided with a contact locking part, and the other is provided with a push-fitting part, and the connector provided with the contact locking part is defined as a contact locking connector. The connector with push fit is a push fit connector, and the contact lock includes a lock plate for movably assembled in the contact lock connector along the insertion direction perpendicular to the connector. The lock plate There is an escape space for avoiding the contact when assembling the contact in the contact mounting hole of the contact locking connector, and there is also a transitional step surface for the contact between the large diameter section and the small diameter section on the contact The stop part for blocking fit, the contact locking part is also provided with a push-up structure for forming an inclined-plane pressing structure with the push-fit part on the push-fit connector when the plug connector and the socket connector are inserted. The push portion is such that when the plug connector is plugged into the receptacle connector, the locking plate is driven by the push-fit connector to move, and the corresponding contact piece is stopped by the stop portion. 2. The connector assembly according to claim 1, characterized in that: the locking plate is provided with a piercing hole for piercing the corresponding contact piece, the piercing hole constitutes the avoidance space, and the piercing hole The hole along which the hole is installed constitutes the stop portion. 3. The connector assembly according to claim 2, characterized in that: the hole wall on one side of each piercing hole close to the pushing part is provided with an avoidance groove for avoiding the small diameter section of the contact piece, and the avoidance groove has The groove width is larger than the small diameter section of the contact piece and smaller than the large diameter section of the contact piece. 4 . The connector assembly according to claim 3 , wherein the escape groove between two adjacent piercing holes is an escape groove connecting two adjacent piercing holes along the moving direction of the locking plate. 5. The connector assembly according to any one of claims 1-4, wherein the corresponding side of the locking plate is provided with a top extending toward the plug-in end of the contact locking connector along the plug-in direction. The push arm is such that the locking part of the contact piece is L-shaped, and the push portion is arranged on the push arm. 6. The connector assembly according to claim 5, wherein the push arm is a push plate, and the push plate is provided with a push groove extending along the insertion direction, and the push groove is far away from the stopper. One end of the stop plate is an open structure, the pushing groove constitutes the pushing part, and the pushing matching part is a pushing rod that pushes and cooperates with the pushing groove. 7. The connector assembly according to claim 6, wherein the pushing groove is a trapezoidal groove, and the corresponding pushing rod is a trapezoidal rod. 8. The connector assembly according to claim 5, wherein the pushing groove has a groove bottom wall, and the corresponding end of the groove bottom wall corresponding to the opening structure of the pushing groove is provided for connecting with the pushing groove. The guide ramp on which the push-fit portion on a push-fit connector mates. 9. The connector assembly includes a plug connector and a socket connector for corresponding plugging. The plug connector and the socket connector each use their front ends as the plug-in end. The plug insulator, the plug contact mounting hole on the plug insulator is equipped with a plug contact that is anti-backward through the bullet claw, and the plug contact has a large diameter section and a small diameter section forming a transitional step surface; the socket connector includes a socket housing, a socket The housing is provided with a socket insulator, and the mounting hole of the socket contact on the socket insulator is equipped with a socket contact that is prevented from retreating through the claws. The socket contact has a large-diameter section and a small-diameter section that form a transitional step surface. It is characterized in that: The plug housing is also provided with a plug contact locking piece, the plug contact locking piece includes a plug locking plate movably assembled in the plug connector along the insertion direction perpendicular to the plug connector, and the plug locking plate is provided with There is a plug avoidance space for avoiding the plug contact when assembling the plug contact in the contact mounting hole of the plug connector, and there is also a transitional step face stop between the large diameter section and the small diameter section on the plug contact The stopper of the plug that fits, the plug locking plate has a plug assembly position for assembling the plug contact through the plug avoidance space on its movable stroke, and a gap between the large diameter section and the small diameter section of the plug contact through the plug stopper and the plug contact. The transitional step surface between them stops the matched plug stop position along the plugging direction, and the plug contact locking part is also provided with a socket top on the socket connector when the plug connector and the socket connector are plugged together. The push-fit part forms a plug pushing part of an inclined-plane pressing structure; the socket housing is also provided with a socket contact locking part, and the socket contact locking part includes a socket that is movably assembled in the socket along the direction perpendicular to the insertion direction of the socket connector. The socket locking plate in the connector, the socket locking plate is provided with a socket avoidance space for avoiding the socket contact when the socket contact is assembled in the contact mounting hole of the socket connector, and is also provided with a socket avoidance space for the socket contact The transition step surface between the large diameter section and the small diameter section on the top stops the matching socket stopper, and the socket locking plate has a socket assembly position for assembling the socket contacts through the socket avoiding space and a socket through the socket on its movable stroke. The transitional stepped surface between the stop part and the large diameter section and the small diameter section of the socket contact piece blocks the mating socket stop position along the insertion direction, and the socket contact piece locking piece is also provided with a socket connector When plugged with the plug connector, it forms a socket push portion with a sloped pressing structure with the plug push fit portion on the plug connector; when the plug connector is plugged with the socket connector, the plug push fit portion of the plug connector Cooperate with the socket pushing part to push and drive the socket locking plate to move from the socket assembly position to the socket stop position to realize the socket stop part blocking the socket contacts, and the socket push fitting part of the socket connector and the plug push part Pushing and cooperating drives the plug locking plate to move from the plug assembly position to the plug stop position so as to realize that the plug stop part stops the plug contact. 10. The connector assembly according to claim 9, characterized in that: the plug locking plate is provided with a plug penetration hole for the plug contacts to penetrate, and the plug penetration hole constitutes the plug avoidance space , the hole edge of the plug piercing hole constitutes the plug stopper; the socket locking plate is provided with a socket piercing hole for the socket contact to wear, and the socket piercing hole constitutes the socket avoidance Space, the hole edge of the socket piercing hole constitutes the socket stopper.