CN107546552B - Plug connector and combination thereof - Google Patents

Abstract

The invention discloses a plug connector and a combination thereof. The plug connector includes a plug connector and a socket connector. The plug connector includes a first insulating body, a locking member and an insulating shell. The socket connector includes a housing, and the locking member includes A locking arm that can rebound under pressure, the locking arm is provided with a protrusion protruding out of the first insulating body and a locking portion, the insulating shell is provided with a button at the position corresponding to the protrusion, and the housing is provided with a position corresponding to the locking portion. Limiting slot, the locking part is limited to the limiting slot when mating, pressing the button can realize the button to drive the locking arm to elastically deform, so that the locking part can be separated from the limit of the limiting slot, the locking piece, the button and the limit The matching of the slot can divide the plugging or disconnecting of the electrical connector assembly into several stages, which is beneficial to avoid the instantaneous discharge of the power terminal and improve the safety of the electrical connector.

Description

Plug connectors and combinations thereof

【Technical field】

The present invention relates to a plug connector and a combination thereof, in particular to a plug connector and a combination thereof that are relatively safe during plugging and unplugging.

【Background technique】

For the prior art, please refer to an electrical connector combination disclosed in Chinese Utility Model No. CN204144588U, which includes a first connector and a second connector that cooperate with each other, and the first connector includes a first insulating body and a The first terminal of the first insulating body, the second connector includes a second insulating body and a second terminal fixed on the second insulating body, the first and second terminals each include five terminals, and the five terminals are located in the middle. The detection terminals and the power terminals located on both sides of the detection terminals, in the docking direction, the five first terminals are arranged flush, and the five second terminals are also arranged flush, when the first and second connectors are inserted and pulled out , the first and second power terminals and the first and second detection terminals are connected or disconnected at the same time, which may cause instantaneous discharge of the power terminals, posing a safety hazard and affecting the service life of the electrical connector.

Therefore, it is necessary to provide a new plug connector and its combination to overcome the above-mentioned defects.

[Content of the invention]

The purpose of the present invention is to provide a plug connector and its combination, the process of plugging and disconnecting has several stages, which can avoid the instantaneous discharge of the power terminal and improve the safety of the electrical connector.

The object of the present invention is achieved through the following technical solution: a plug connector, which includes a first insulating body, a first terminal fixed on the first insulating body, and a lock fixed on the first insulating body and an insulating shell assembled on the outside of the first insulating body, the locking piece includes a locking arm that can be pressed and rebounded, and the locking arm is provided with a protrusion protruding from the first insulating body , the insulating shell is provided with a button that can press the protrusion at the position corresponding to the protrusion, and the locking arm is provided with a locking portion that protrudes in the same direction as the protrusion, and pressing the button can realize Pressing the protruding portion further drives the locking arm to elastically deform in a direction away from the protruding direction, so that the locking portion is displaced along the protruding direction.

Further, the first insulating body includes a pair of first bearing portions extending along a butting direction and a second bearing portion located between the two first bearing portions, and the locking arm includes a pair of first bearing portions along the butting direction A pair of first locking arms extending and arranged above the second bearing portion, the first locking arms are provided with a first protrusion protruding out of the second bearing portion and a first protrusion extending from the second bearing portion. The first locking portion protrudes in the same direction.

Further, the button includes a first button that is set corresponding to the position of the first protrusion and can be pressed along the protruding direction of the first protrusion. Pressing the first button can realize the first button and the first button. The first protruding portion contacts and further drives the first locking arm to elastically deform along the protruding direction, so that the first locking portion is displaced along the protruding direction.

Further, the locking piece includes a pair of second locking arms extending in the same direction as the first locking arms, the two second locking arms are respectively fixed on the outer sides of the two first bearing parts, the The second locking arm extends with a second locking portion, the extending direction of the second locking portion is perpendicular to the extending direction of the first locking portion, and the second locking arm is provided with the first locking portion. The two latching portions extend in the same direction, and the button includes a second button that is set corresponding to the position of the second protruding portion and can be pressed along the extending direction of the second protruding portion. Pressing the second button The second button can be brought into contact with the second protruding portion and further drive the second locking arm to elastically deform, so that the second locking portion is displaced along the extending direction.

Further, the first terminal includes a first detection terminal, the first detection terminal is provided with a first detection portion, and the rear of the first detection portion is provided with a protruding out of the first insulating body The protruding part is located between the pair of locking arms, and pressing the button can make the button contact the protruding part and further drive the first detection part to elastically deform.

The object of the present invention is also achieved through the following technical solution: a plug-connector combination, which defines a mating direction, which includes a plug connector and a socket connector that can be plugged and mated, and the plug connector includes a first insulating body , a first terminal fixed on the first insulating body, a locking piece fixed on the first insulating body, and an insulating shell assembled on the outside of the first insulating body, the socket connector includes a second insulating body , a second terminal held on the second insulating body and a casing covering the outside of the second insulating body, the locking member includes a locking arm that can be pressed and rebounded, and the locking arm is provided with There are protruding parts protruding out of the first insulating body and a locking part protruding in the same direction as the protruding parts, and the insulating housing is provided with a button that can press the protruding part at the position corresponding to the protruding part, The housing is provided with a limit slot at the position corresponding to the locking portion, and the locking portion is limited to the limit slot when the electrical connectors are assembled and mated, and pressing the button can realize the button and the locking portion. The protruding portion contacts and further drives the locking arm to elastically deform along the protruding direction, so that the locking portion is released from the limiting position of the limiting groove.

Further, the first insulating body includes a pair of first bearing portions extending along the butting direction and a second bearing portion located between the two first bearing portions, and the locking arm includes a pair of first bearing portions extending along the butting direction. A pair of first locking arms extending in the direction and arranged above the second bearing portion, the first locking arms are provided with a first protrusion protruding out of the second bearing portion and a The protruding portion is a first locking portion protruding in the same direction, and the limiting groove includes a first limiting groove corresponding to the first locking portion.

Further, the button includes a first button that is set corresponding to the position of the first protrusion and can be pressed along the protruding direction of the first protrusion. Pressing the first button can realize the first button and the first button. The first protruding portion contacts and further drives the first locking arm to elastically deform along the protruding direction, so that the first locking portion is released from the limiting position of the first limiting groove.

Further, the locking piece includes a pair of second locking arms extending in the same direction as the first locking arms, the two second locking arms are respectively fixed on the outer sides of the two first bearing parts, the The second locking arm is extended with a second locking portion, the housing is provided with a second limiting groove corresponding to the second locking portion, and the second locking arm is provided with the second locking portion. A second protrusion extending in the same direction, the button includes a second button corresponding to the position of the second protrusion and can be pressed along the extending direction of the second protrusion. Pressing the second button can realize the The second button is in contact with the second protruding portion and further drives the second locking arm to elastically deform, so that the second locking portion is released from the limiting position of the second limiting groove.

Further, the first terminal includes a first detection terminal and a first power terminal, and the second terminal includes a second detection terminal and a second detection terminal that are respectively connected with the first detection terminal and the first power terminal. The power terminal, the length of the second limit slot is greater than the length of the first limit slot, when the plug connector after mating is pulled out from the socket connector, pressing the first button to make The first button drives the protruding part and the first protruding part to press down, so that the first and second detecting parts are disconnected and the first locking part is separated from the first limiting groove. At this time, the first and second power terminals are still connected and the second locking portion is still limited to the second limit groove, and the plug connector is further allowed to move along the second limit. The position slot moves away from the socket connector to the edge of the second position limit slot, and finally, after pressing the second button, the second locking portion is pressed and displaced so as to be separated from the first locking portion. At this time, the plug connector can be completely pulled out of the socket connector along the docking direction.

Compared with the prior art, the present invention has the following beneficial effects: the cooperation of the locking member and the button in the plug connector and the combination thereof of the present invention can divide the plugging or disconnecting of the electrical connector combination into several stages, That is, the detection terminal and the power terminal are connected or disconnected in different timings, which avoids the instantaneous discharge of the power terminal and improves the safety index and service life of the electrical connector. In addition, the design of the first button to control the opening and closing of the detection terminal is more convenient. The safety of the electrical connector is further increased and the operation is convenient.

【Description of drawings】

FIG. 1 is a perspective view of the plug connector of the present invention.

FIG. 2 is an exploded perspective view of the plug connector shown in FIG. 1 .

FIG. 3 is an exploded perspective view of the plug connector shown in FIG. 2 from another angle.

Figure 4 is a partially exploded perspective view of the plug connector of the present invention.

5 is a perspective view of the socket connector of the present invention.

FIG. 6 is an exploded perspective view of the receptacle connector shown in FIG. 5 .

FIG. 7 is an exploded perspective view of the receptacle connector shown in FIG. 6 from another angle.

8 is a perspective view of the plug connector assembly of the present invention.

FIG. 9 is a perspective view of the plug connector assembly shown in FIG. 8 from another angle.

FIG. 10 is a perspective view of the plug-connector combination of the present invention in a butt joint state.

11 is a cross-sectional view of the plug connector assembly of the present invention taken along line A-A in FIG. 10 .

FIG. 12 is a cross-sectional view of the plug connector assembly of the present invention taken along the line B-B in FIG. 10 .

13 is a perspective view of another mating state of the plug-connector assembly of the present invention.

FIG. 14 is a cross-sectional view of the plug connector assembly of the present invention taken along line C-C in FIG. 13 .

15 is a cross-sectional view of the plug connector assembly of the present invention taken along the line D-D in FIG. 13 .

FIG. 16 is a cross-sectional view of the plug connector assembly shown in FIG. 14 when the first button is pressed.

FIG. 17 is a cross-sectional view of the plug connector assembly shown in FIG. 12 when the second button is pressed.

18 is an exploded perspective view of the first terminal and a perspective view of the second terminal of the plug connector of the present invention.

19 is a perspective view of the plug connector of the present invention when the first terminal and the second terminal are butted together.

【Description of main component symbols】

first interface 1 Slotted 51 docking space 10 boss 52 plug connector 100 support 521 Plug Connector Combinations 1000 The second signal terminal slot 522 first insulating body 2 first coordination part 53 socket connector 200 third ligand 54 first bearing part twenty one second terminal 6 second bearing part twenty two second power terminal 61 storage tank 211 second contact 611 groove 221 The second detection terminal 62 slot 222 Second detection section 621 Sag twenty three second signal terminal 63 first signal terminal slot 231 second docking part 631 first terminal 3 second ground terminal 64 first power terminal 31 second ground 641 first contact 311 Insulating case 7 sleeve 3111 first button 71 Clamping element 3112 second button 72 shrapnel 3113 case 8 Docking point 3114 first limit slot 81 Limiting part 3115 The second limit slot 82 The first detection terminal 32 second ligand 83 first detection unit 321 Fourth coordination part 84 bulge 322 lock 9 first signal terminal 33 first locking arm 91 first docking section 331 first protrusion 911 first ground terminal 34 first locking part 912 first ground 341 Second locking arm 92 second docking surface 4 second protrusion 921 second insulating body 5 second locking part 922

The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

【Detailed ways】

Hereinafter, specific embodiments of the plug connector and the combination thereof of the present invention will be introduced with reference to FIGS. 1 to 19 .

Referring to FIG. 1 to FIG. 9 , the present invention discloses a plug connector assembly 1000 , which includes a plug connector 100 and a receptacle connector 200 that are butted against each other. The mutual insertion direction of the plug connector 100 and the receptacle connector 200 is defined as the mating direction.

As shown in FIG. 1 to FIG. 7 , the plug connector 100 is provided with a first mating surface 1 at the front end of the mating direction, and includes a first insulating body 2 and a first terminal fixed on the first insulating body 2 3. The locking member 9 fixed on the first insulating body 2 and the insulating housing 7 covering the first insulating body 2, the insulating housing 7 is provided with a button; the socket connector 200 is provided with a first The two butting surfaces 4 include a second insulating body 5 , a second terminal 6 fixed on the second insulating body 5 , and a casing 8 covering the outside of the second insulating body 5 . The casing 8 is connected to the second insulating body 5 . A docking space 10 is formed between the second terminals 6 . In this embodiment, the material of the housing 8 is stainless steel. The first docking surface 1 and the second docking surface 4 are respectively the first part of the plug connector 100 and the socket connector 200 to be docked with each other when they are docked with each other. The first terminal 3 includes a first power terminal 31 and a first detection terminal 32, the second terminal 6 includes a second power supply terminal 61 and a second detection terminal 62 which are matched with the first power supply terminal 31 and the first detection terminal 32 respectively. The second power terminals 31 and 61 are respectively provided with first and second contact portions 311 and 611 extending along the docking direction and butted against each other. The first and second detection terminals 32 and 62 are respectively provided with mutual contact to achieve detection. The first and second detection parts 321 and 621 of the detection function, the first contact part 311 is closer to the first butt surface 1 than the first detection part 321, and the second contact part 611 The second detection portion 621 is closer to the second abutting surface 4 .

4 , the first insulating body 2 includes a pair of first bearing portions 21 extending along the butting direction and a second bearing portion 22 located between the two first bearing portions 21 . A carrying portion 21 is closer to the first abutting surface 1 than the second carrying portion 22 and a recess 23 is formed at the front end of the second carrying portion 22 (refer to FIG. 1 for reference numerals). Each first carrying portion 21 is provided with The receiving groove 211 runs through its front end, the second bearing portion 22 is provided with a groove 221 which penetrates through the front end and communicates with the recess 23 , and a slot 221 which is located on one side of the groove 221 and communicates with the groove 221 . Slot 222 (see numbering in Figure 3). The first contact parts 311 are respectively received in the receiving grooves 211 , the first detection parts 321 are received in the grooves 222 and protrude into the grooves 23 , namely the first power supply The terminal 31 is arranged on the first bearing portion 21 , and the first detection terminal 32 is arranged on the second bearing portion 22 .

6 and 11 , the second insulating body 5 includes a plurality of slots 51 and a boss 52 protruding forward. The second contact portions 611 respectively protrude forward from the slot 51 . When the plug connector 100 and the receptacle connector 200 are butted against each other, the boss 52 is accommodated in the recess 23 of the plug connector 100 , and the front end of the boss 25 is provided with a pair of protruding forward and accommodating In the support portion 521 in the groove 23, the second detection portion 621 is held between the two support portions 521 for the first detection portion 321 to contact in a forward or reverse direction to achieve detection Function.

The first terminal 3 includes a pair of first signal terminals 33, the second terminal 6 includes a pair of second signal terminals 63 that cooperate with the first signal terminals 33 to transmit signals, and the recess 23 has a pair of The first signal terminal groove 231 outside the groove 23 is used for receiving the first signal terminal 32 , and the boss 52 is provided with a pair of outside the two supporting parts 521 for receiving the second signal terminal. 63 of the second signal terminal slot 522, the first and second signal terminals 33, 63 are respectively provided with first and second abutting portions 331, 631, referring to FIG. 16, the first abutting portion 331 is closer to the first abutting surface 1 than the first contact portion 311, and the second detecting portion 621 is closer to the In the second mating surface 4, when the plug connector 100 and the receptacle connector 200 are mated with each other, the first and second signal terminals 33, 63 are processed earlier than the first and second detection terminals 32, 62. contact and contact later than the first and second power terminals 31 and 61 .

The first terminal 3 further includes a pair of first ground terminals 34, the second terminal 6 further includes a pair of second ground terminals 64, and the first and second ground terminals 34 and 64 are respectively provided with first and second ground terminals. The second ground portions 341 and 641 . In this embodiment, in the butting direction, the first grounding portion 341 is closer to the first butting surface 1 than the first contacting portion 311 , and the second grounding portion 641 is connected to the second grounding portion 641 . The contact portions 611 are flush, so the first and second ground terminals 34 and 64 are the earliest among all the terminals to be in contact with each other when they are connected to each other.

As shown in FIG. 8 to FIG. 9 , each of the first terminal 3 and the second terminal 6 includes seven terminals that can be docked with each other, and the seven terminals of the first terminal 3 are the first detection terminals located in the middle. 32. A pair of first signal terminals 33 on both sides of the first detection terminal 32, a pair of first power terminals 31 on the outside of the first signal terminal 33, and a pair of first ground terminals on the outermost side 34 ; the arrangement of the terminals in the second terminals 6 corresponds to the arrangement of the first terminals 3 .

As shown in FIGS. 18 and 19 , the first contact portion 311 of the first power terminal 31 includes a sleeve 3111 and an annular elastic clamping element 3112 disposed in the sleeve 3111 , and the clamping element 3112 includes several There are two elastic pieces 3113 extending along the docking direction and arranged in a circle. The elastic pieces 3113 are provided with docking points 3114 protruding along the center direction of the circumference. Referring to FIG. 12 , the sleeve 3111 includes a limiting portion 3115 protruding toward the inside thereof, and the upper limit of the clamping element 3112 is located at the limiting portion 3115 in the butting direction. When the plug connector 100 is mated with the socket connector 200 , the second contact portion 611 is inserted into the clamping element 3112 , and the mating point 3114 and the second contact portion 611 realize current through multi-point contact. The multi-channel is turned on, so that the plug connector assembly 1000 can transmit a large current and at the same time, the temperature rise is small.

Referring to FIG. 11 and FIG. 13 , the first detection terminal 32 protrudes from the rear of the first detection portion 321 with a protrusion 322 protruding from the second bearing portion 22 , and the button includes a corresponding The first button 71 is provided at the position of the protruding portion 322 and can be pressed along the extending direction of the protruding portion 322 . Pressing the first button 71 can make the first button 71 contact the protruding portion 322 And further drive the first detection part 321 to elastically deform along the direction perpendicular to the docking direction, so as to disconnect the electrical connection between the first detection terminal 32 and the second detection terminal 62 .

As shown in FIG. 1 to FIG. 7 , the locking member 9 fixed on the first insulating body 2 includes a locking arm that can rebound under pressure. In this embodiment, the locking arm includes a A pair of first locking arms 91 extending in the docking direction and disposed above the second bearing portion 22, the protruding portion 322 is located between the pair of first locking arms 91, the first The locking arm 91 is provided with a first protruding portion 911 protruding out of the second bearing portion 22 and extending in the same direction as the protruding portion 322 , and a first latch protruding in the same direction as the first protruding portion 911 . Lock 912. In this way, the position of the first protruding portion 911 is also set corresponding to the first button 71 , and the first button 71 can press the first protruding portion 911 . The housing 8 is provided with a first limiting slot 81 extending in the same direction as the first locking arm 91 at a position corresponding to the first locking portion 912 . When the plug connector assembly 1000 is plugged and mated The first locking portion 912 is limited to the first limiting groove 81 , and pressing the first button 71 can realize that the first button is in contact with the protruding portion 322 and also contacts with the first protrusion. The first locking portion 911 contacts and further drives the first locking arm 91 to elastically deform in a direction away from the protruding direction, so that the first locking portion 912 is displaced along the protruding direction, so that the first locking portion 912 is displaced along the The locking portion 912 is released from the limit of the first limit groove 81 .

As shown in FIG. 2 to FIG. 4 , the locking member includes a pair of second locking arms 92 extending in the same direction as the first locking arm 91 , and the two second locking arms 92 are respectively fixed on two On the outer side of the first bearing portion 21 , the second locking arm 92 is extended with a second locking portion 922 , and the housing 8 is provided with the first limiting groove corresponding to the second locking portion 922 81 parallel to the second limiting groove 82, when the plug connector assembly 1000 is plugged and mated, the second locking portion 922 is limited to the second limiting groove 82, in this embodiment, the first The extending direction of the second locking portion 922 is perpendicular to the extending direction of the first locking portion 912 . In the connecting direction, the length of the second limiting slot 82 is greater than the length of the first limiting slot 81 .

The second locking arm 92 is provided with a second protruding portion 921 extending in the same direction as the second locking portion 922 , and the button on the insulating housing 7 also includes a position setting corresponding to the second protruding portion 921 . The second button 72 can be pressed along the extending direction of the second protrusion 921 . Referring to FIG. 12 , FIG. 16 and FIG. 17 , when the plug connector assembly 1000 is plugged and mated, the second locking portion 922 is limited to the second limiting groove 82 , and the second button 72 can be pressed to achieve The second button 72 is in contact with the second protruding portion 921 and further drives the second locking arm 92 to elastically deform, so that the second locking portion 922 is displaced along the extending direction so as to be separated from the The limit of the second limit groove 82 .

Referring to FIGS. 10 to 17 , these diagrams illustrate different mating processes of the plug connector 100 and the receptacle connector 200 , and the above-mentioned mating processes will be described in detail below. FIGS. 10 to 12 are the states in which the plug connector assembly 1000 is fully docked. At this time, the first and second locking portions 912 and 922 are respectively confined in the first and second limiting grooves 81 and 82 . 12 and 13, when the mated plug connector 100 is pulled out from the socket connector 200, press the first button 71, the protruding portion 322 and the first protrusion At the same time, the first detection part 911 is driven by the first button 71 and pressed down. At this time, the first detection part 321 is disconnected from the second detection part 621 and the first and second power terminals 31 and 61 are still maintained. In electrical contact, the first locking portion 912 is separated from the position of the first limiting slot 81 , and at this time, the second locking portion 922 is still limited to the second limiting slot 82 . The length of the second limiting slot 82 is greater than the length of the first limiting slot 81 , so the plug connector 100 can further move away from the The position of the socket connector 200 is moved to the edge of the second limiting groove 82 close to the second mating surface 4 (the state shown in FIG. 14 ); as shown in FIGS. 14 to 17 , press the second After pressing the button 72, the second locking portion 922 can be displaced under pressure so as to be separated from the limit of the second limiting groove 82. At this time, the plug connector 100 can be completely pulled out along the docking direction. At the same time, the first and second power terminals 31 and 61 are disconnected. In this way, the first and second detection terminals 32 and 62 and the first and second power terminals 31 and 61 can be electrically disconnected at different time sequences, thereby avoiding the instantaneous discharge of the power terminals and improving the Safety index and service life of electrical connectors.

Referring to FIGS. 1 to 3 , the plug connector 100 is provided with a metal shell 11 that covers the first and second bearing portions 21 and 22 . In this embodiment, the metal shell 11 is made of stainless steel. In order to provide good strength support for the plug connector 100 ; in addition, the metal shell 11 and the shell 8 have a guiding function when the plug connector 100 and the socket connector 200 are butted together. The insulating shell 7 is a two-piece structure, that is, it can be fixed to the outside of the metal shell 11 by means of up-and-down butt assembly.

Referring to FIG. 5 to FIG. 7 , the second insulating body 5 is provided with a first coordination portion 53 and a third coordination portion 54 recessed inward, and the first and third coordination portions 53 and 54 are respectively located at the the two opposite sides of the second insulating body 5; the housing 8 includes a second coordination portion 83 and a fourth coordination portion 84 that are recessed in the same direction as the first and third coordination portions 53 and 54 respectively. , the first and second coordinating parts 53 and 83 can be relatively assembled and fixed, and the second and third coordinating parts 54 and 84 can be relatively assembled and fixed, so that the second insulating body 5 can be assembled fixed in the casing 8 .

The above descriptions are only part of the embodiments of the present invention, not all of the embodiments. Any equivalent changes to the technical solutions of the present invention taken by those of ordinary skill in the art by reading the description of the present invention are covered by the claims of the present invention. .

Claims (10)

1. A plug connector for mating with a socket connector, the plug connector comprising a first insulating body, a first terminal fixed on the first insulating body, and a first terminal fixed on the first insulating body and the insulating shell assembled on the outside of the first insulating body, the first terminal includes a first detection terminal and a first power terminal connected with the socket connector, and it is characterized in that: the The locking piece includes a plurality of locking arms that can be pressed and rebounded. The locking arms are provided with protrusions protruding out of the first insulating body, and the insulating shell is provided with a position corresponding to the protrusions. Press the button of the protruding part, the locking arm is provided with a locking part protruding in the same direction as the protruding part, and pressing the button can press the protruding part to further drive the locking arm to move away from the edge The protruding direction is elastically deformed, so that the locking portion is displaced along the protruding direction, and the plurality of locking arms include a first locking arm and a second locking arm extending in the same direction, so The locking portions of the first and second locking arms are respectively a first locking portion and a second locking portion, the first locking portion protrudes along a first direction, and the second locking portion is along a The second direction protrudes perpendicular to the first direction, and the button includes a first button and a second button respectively corresponding to the first and second locking arms. When the first button is pressed, all the The first locking portion is displaced along the first direction, the first detection terminal is disconnected from the socket connector and the first power terminal and the socket connector are still connected, when When the second button is pressed, the second locking portion is displaced along the second direction. 2 . The plug connector of claim 1 , wherein the first insulating body comprises a pair of first bearing portions extending along a mating direction and a first bearing portion located between the pair of first bearing portions. 3 . Two bearing parts, the locking arm includes a pair of the first locking arms extending along the docking direction and disposed above the second bearing part, the first locking arms are provided with protruding parts. The first protruding portion of the second bearing portion and the first locking portion protruding in the same direction as the first protruding portion. 3 . The plug connector of claim 2 , wherein the first button is disposed corresponding to the position of the first protrusion and can be pressed in the first direction, and the first button is pressed. 4 . The button can realize the contact between the first button and the first protrusion and further drive the first locking arm to elastically deform along the first direction, so that the first locking portion is formed along the first direction. offset. 4. The plug connector of claim 3, wherein the locking member comprises a pair of the second locking arms integrally provided with the first locking arm, the pair of second locking arms The locking arms are respectively fixed on the outer sides of the pair of first bearing parts, the second locking arms are provided with second protrusions extending in the same direction as the second locking parts, and the second buttons correspond to the first The positions of the two protrusions are set and can be pressed in the second direction. Pressing the second button can realize the contact between the second button and the second protrusion and further drive the elasticity of the second locking arm. deformation, so that the second locking portion is displaced along the second direction. 5 . The plug connector of claim 1 , wherein the first detection terminal is provided with a first detection portion, and a rear portion of the first detection portion is provided with a protruding out of the first detection portion. 6 . The protruding part of the insulating body, the protruding part is located near the locking arm, and pressing the button can make the button contact with the protruding part and further drive the first detection part to elastically deform. 6. A plug connector assembly, defining a mating direction, comprising a plug connector and a receptacle connector that can be plugged and mated, the plug connector comprising a first insulating body, a first insulating body fixed on the first insulating body. A terminal, a locking piece fixed on the first insulating body, and an insulating shell assembled on the outside of the first insulating body, the socket connector includes a second insulating body, a first insulating body fixed on the second insulating body Two terminals and a casing covering the outside of the second insulating body, the first terminal includes a first detection terminal and a first power supply terminal, the second terminal includes a connection with the first detection terminal, The second detection terminal and the second power terminal are connected to the first power terminal. The protruding portion of the first insulating body and the locking portion protruding in the same direction as the protruding portion, the insulating housing is provided with a button that can press the protruding portion at the position corresponding to the protruding portion, and pressing the button can The button is in contact with the protruding portion and further drives the locking arm to elastically deform along the protruding direction, and the plurality of locking arms include a first locking arm and a second locking arm extending in the same direction, The locking portions of the first and second locking arms are respectively a first locking portion and a second locking portion, the first locking portion protrudes along a first direction, and the second locking portion Protruding in a second direction perpendicular to the first direction, the button includes a first button and a second button respectively corresponding to the first and second locking arms, and the casing corresponds to the first button , The position of the second locking portion is respectively provided with a first limiting slot and a second limiting slot, when the plug connector is assembled and mated, the first and second locking portions are limited to the first and second locking portions. , a second limiting slot, when the first button is pressed, the first locking portion is displaced along the first direction, so that the first locking portion is separated from the first limiting slot the limit, the first and second detection terminals are disconnected and the first and second power terminals are still connected, when the second button is pressed, the second locking portion is along the The second direction is offset, so that the second locking portion is released from the limit of the second limit groove. 7. The plug connector assembly of claim 6, wherein the first insulating body comprises a pair of first bearing portions extending along the mating direction and located between the pair of first bearing portions the second bearing part of the fuselage, the locking arm includes a pair of the first locking arms extending along the docking direction and arranged above the second bearing part, the first locking arm is provided with a protruding The first protruding portion of the second bearing portion and the first locking portion protruding in the same direction as the first protruding portion come out. 8 . The plug-connector assembly according to claim 7 , wherein the first button is arranged corresponding to the position of the first protrusion and can be pressed in the first direction, and the first button can be pressed in the first direction. 9 . A button can realize the contact between the first button and the first protrusion and further drive the first locking arm to elastically deform in the first direction, so that the first locking portion is released from the first limit The limit of the bit slot. 9 . The plug connector assembly of claim 8 , wherein the locking member comprises a pair of the second locking arms, and the pair of second locking arms are respectively fixed to a pair of the first locking arms. 10 . On the outer side of the bearing portion, the second locking arm is provided with a second protruding portion extending in the same direction as the second locking portion, and the second button is arranged corresponding to the position of the second protruding portion and can be located at any location. The pressing operation is performed in the second direction, and pressing the second button can make the second button contact the second protrusion and further drive the second locking arm to elastically deform, so that the second locking The part escapes from the limit of the second limit groove. 10 . The plug connector assembly of claim 9 , wherein the first detection terminal is provided with a protruding portion protruding out of the first insulating body, and the length of the second limiting groove is 10 . is longer than the length of the first limiting slot, when the plug connector after mating is pulled out from the socket connector, the first button is pressed so that the first button drives the protruding part, The first protrusion is pressed down, so that the first and second detection parts are disconnected and the first locking part is released from the limit of the first limit slot. At this time, the first and second detection parts are The power terminals are still connected and the second locking portion is still limited to the second limiting groove, so that the plug connector is further moved along the second limiting groove to a position away from the socket connector To the edge of the second limit slot, and finally, after pressing the second button, the second locking portion is pressed and displaced to be separated from the limit of the second limit slot. The plug connector is completely unplugged from the receptacle connector along the mating direction.

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