CN117650397B

CN117650397B - Electric connector with electrifying locking function and terminal structure

Info

Publication number: CN117650397B
Application number: CN202410123852.3A
Authority: CN
Inventors: 王伟; 王坚波
Original assignee: Shenzhen Jinling Electronics Co ltd
Current assignee: Shenzhen Jinling Electronics Co ltd
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2024-04-02
Anticipated expiration: 2044-01-30
Also published as: CN117650397A

Abstract

The invention relates to the field of electric connectors, and discloses an electric connector with an electrifying locking function and a terminal structure, wherein the electric connector comprises an insulating main body, a circuit board and a conductive terminal group, and one end of the conductive terminal group penetrates out of the insulating main body and extends onto the circuit board; be provided with first jack and block portion on the insulating main part, block portion has cooperation position and initial position for first jack, still is provided with the circular telegram cooperation portion on the insulating main part, circular telegram cooperation portion has first conductive end, second conductive end and locking end. The insulation main body is used for being in plug-in fit with the complementary type electric connector, so that electric signal transmission between the electric connector and the complementary type electric connector is realized; the clamping part is inserted and assembled with the first complementary terminal, after the power is turned on, the locking end is locked by the electrifying matching part to enable the clamping part to be unable to slide continuously, and therefore connection between the complementary terminal and the insulating main body is effectively limited, and use safety of the whole electric connector is guaranteed.

Description

Electric connector with electrifying locking function and terminal structure

Technical Field

The present invention relates to the field of electrical connectors, and more particularly, to an electrical connector with an electrical locking function and a terminal structure thereof.

Background

The electric connector is widely applied to electronics, electrical appliances and meters, and has the function of connecting bridges at blocked positions in circuits or between independent and non-connected circuits, and has the task of carrying current or signal transmission; or matched with the electric beam terminal to form plate-to-wire connection; but also independently for board-to-board connection. Electrical connectors are widely used in various fields, such as automotive fields of automobiles, electric vehicles, etc., and various fields of electronic devices, etc., for connecting various electrical components.

While conventional electrical connectors are typically used in combination with complementary electrical connectors to achieve electrical communication, the purpose of the electrical connector and complementary electrical connector connection is to achieve electrical signal connection between the electrical connector and the complementary electrical connector, and the electrical signal connection is through connection between metal terminals of the electrical connector and complementary metal terminals of the complementary electrical connector, however, in order to facilitate installation and removal between the electrical connector and the complementary electrical connector, protrusions are provided on the electrical connector, and slots for cooperation with the protrusions are provided on the complementary electrical connector to achieve connection. The arrangement of the protruding part and the slot is simpler, so that connection can be realized, but when the electric connector is used in the field of automobiles, when the automobile body runs, the automobile body vibrates together with the whole electric connector and the complementary electric connector, so that the metal terminals of the electric connector and the complementary electric connector which are simply inserted and assembled are loosened and fall off easily due to vibration, and particularly for the use state, the fall-off between the electric connector and the complementary electric connector seriously affects normal use, and even serious consequences can be brought to the automobile in running.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the technical problems that: a buckle structure and an electric connector with the buckle structure are provided to solve the problem of weak connection between the electric connector and a complementary electric connector in a use state.

In order to solve the technical problems, the invention adopts a technical scheme that: the electric connector with the power-on locking function comprises an insulating main body, a circuit board and a conductive terminal group arranged on the insulating main body along the plugging direction, wherein one end of the conductive terminal group, which is far away from the insulating main body, penetrates out of the first surface of the insulating main body and extends onto the circuit board, so that the conductive terminal group can realize electric signal connection between the circuit boards; a first jack penetrating through the second surface of the insulating body along the plugging direction is arranged on the insulating body corresponding to the first complementary terminal of the complementary electric connector so that the first complementary terminal can be plugged into the insulating body through the first jack; the insulation main body is provided with a clamping part which freely slides along the circumferential direction of the first jack and movably penetrates into the first jack, the clamping part is provided with a matching position and an initial position relative to the first jack when the first complementary terminal does not penetrate into the first jack, the clamping part slides from the outer wall of the first complementary terminal into the complementary terminal along the circumferential direction of the first jack when the first complementary terminal is inserted into the first jack, so that the first complementary terminal drives the clamping part to slide along the circumferential direction of the first jack in the process of moving along the inserting direction relative to the clamping part, the clamping part slides from the initial position to the matching position, and the clamping part is always clamped into the first complementary terminal in the process; and still be provided with the circular telegram cooperation portion on the insulating main part, circular telegram cooperation portion has and extends to in the first jack and be used for with the first complementary terminal elastic fit's first conductive end, with the second conductive end of conductive terminal group electricity connection and restrict the locking end that the block portion that is located the cooperation position slides after first conductive end and second conductive end circular telegram, first conductive end and second conductive end realize circular telegram cooperation portion's signal transmission after electric connector switch-on, so that the locking end locks the block portion that is located the cooperation position, so that the block portion that makes the card go into in the first complementary terminal no longer removes and restrict the degree of freedom of first complementary terminal in the grafting direction, thereby realize spacing between electric connector and the complementary electric connector, compared with prior art, connect more firmly, prevent whole electric connector because of the automobile body shake leads to becoming flexible even drop and influence the use, promote the safety in utilization of whole device.

Further, a second plug-in cavity and a first plug-in cavity which penetrate through the first surface of the insulating main body along the plug-in direction are respectively arranged on the insulating main body, the first plug-in hole is formed by opening a position, opposite to the first plug-in cavity, on the second surface of the insulating main body, and the first plug-in cavity is communicated with the first plug-in hole, so that a first complementary terminal can penetrate into the first plug-in cavity through the first plug-in hole; a second jack which corresponds to the second plug-in cavity and is used for allowing the second complementary terminal to pass through is formed in the second surface of the insulating main body, one end of the second jack is communicated with the second plug-in cavity, and the other end of the second jack penetrates through the second surface of the insulating main body, so that the second complementary terminal can penetrate into the second plug-in cavity through the second jack; the conductive terminal group comprises second terminals distributed along the plugging direction and first terminals distributed along the plugging direction, the matching ends of the second terminals are inserted in the second plugging cavity, the connecting ends penetrate out of the second plugging cavity in the direction away from the insulating main body and extend to the second circuit board, the matching ends of the first terminals are inserted in the first plugging cavity, the connecting ends penetrate out of the first plugging cavity in the direction away from the insulating main body and extend to the second circuit board, the first terminals are used for transmitting large current, and the second terminals are used for transmitting small current so as to realize simultaneous transmission of the large current and the small current; the second conductive end extends into the first plug cavity and is electrically connected with the first terminal.

Further, an installation cavity penetrating through the second surface of the insulating body is formed in the insulating body along the inserting direction, the second inserting cavity is formed in the inner wall of the installation cavity along the inward concave mode in the width direction and is communicated with the installation cavity, the matching end of the second terminal penetrates into the second inserting cavity, the matching end of the second terminal is provided with a first elastic convex part protruding towards one side away from the second inserting cavity along the width direction, the second inserting cavity is provided with a first avoiding space capable of avoiding when the first elastic convex part deforms, and one side, close to the second surface of the insulating body, of the installation cavity is limited to be the second inserting hole, so that the second complementary terminal is elastically matched with the second terminal through the first elastic convex part when penetrating into the second inserting cavity to enable electric signal transmission after power on, and the first avoiding space provides a deformation space for the first elastic convex part.

Further, the end of the mating end of the second terminal is provided with a hook portion, a blocking portion is formed on the inward side of the second surface of the second plugging cavity in a protruding mode, and the hook portion is located in the second plugging cavity inside the blocking portion, so that after the second terminal is inserted into the second plugging cavity, one end, close to the second jack, of the second terminal cannot move out of the second plugging cavity to affect penetration of the second complementary terminal into the mounting cavity.

Further, the first terminal comprises an electrode sleeve and a metal elastic sheet, wherein the electrode sleeve is inserted in the first inserting cavity, the electrode sleeve is provided with a third inserting cavity which is used for the metal elastic sheet to be in annular tight fit and penetrates through the second surface of the electrode sleeve, and one end of the electrode sleeve, which is far away from the first inserting hole, extends out of the first surface of the second insulating main body; the middle part of the metal elastic sheet is concavely provided with a second elastic convex part which is used for being elastically matched with the matched complementary terminal inwards, so that the first complementary terminal penetrates into the second elastic convex part to be tightly matched with the metal elastic sheet after being inserted into the first jack, and the electric connection between the first complementary terminal and the first terminal is realized.

Further, a fan-shaped sliding cavity is formed in the insulating main body around the circumferential direction of the first jack by the inner wall of the first jack, and the sliding cavity penetrates through the first jack to be arranged, so that a clamping part in the sliding cavity faces into the first jack and can be opposite to the first complementary terminal when the first complementary terminal is inserted into the first jack; the clamping part comprises a sliding block, a sliding pin and a spring, wherein the sliding block is arranged in the sliding cavity in the circumferential direction of the first jack, the sliding pin is formed on one side surface of the sliding block facing the first jack, the spring is arranged in the sliding cavity, the sliding pin movably penetrates through the sliding cavity and extends into the first jack to be matched with the outer wall of the first complementary terminal, two ends of the spring are respectively connected with the sliding block and one side inner wall of the sliding cavity, which is close to the matching position, of the sliding block, the spring is in a compressed state under the action of no external force, and the sliding block is extruded by the spring to be located at an initial position at one side far away from the spring, so that the sliding pin is located at the initial position to be matched with the first complementary terminal to slide when the first complementary terminal is inserted into the first jack.

Further, a movable space is formed in the insulating main body, the movable space is just arranged relative to the sliding cavity, the power-on matching part is arranged in the movable space, a first through hole penetrating through the sliding cavity is formed in the inner wall of one side, close to the sliding cavity, of the movable space along the plugging direction, the locking end of the power-on matching part is located on one side, far away from the sliding cavity, of the movable space, the end part of the locking end movably penetrates into the first through hole, a slot for the locking end to penetrate into is formed in the side, facing to the first through hole, of the sliding block along the plugging direction, the slot is just relative to the first through hole when the sliding block slides to the matching position along the circumferential direction of the first jack, the locking end can penetrate into the slot at the moment, when the power-on matching part is powered on through the first conductive end and the second conductive end, the locking end slides towards the sliding cavity along the plugging direction until penetrating into the slot, and when the first conductive end and the second conductive end keep the power-on state, the locking end always penetrates into the slot to avoid the slot to be extruded by a spring to the initial position, so that the sliding block can retract to the sliding block and the complementary type free degree of the complementary terminal can not move any more.

Further, the power-on matching part comprises a micro electromagnet arranged in the movable space and positioned on one side of the movable space close to the sliding cavity, an elastic supporting piece which is arranged in the movable space and can move relative to the micro electromagnet along the inserting direction, and an armature arranged on the elastic supporting piece, wherein the elastic supporting piece and the armature are positioned on one side of the micro electromagnet far away from the sliding cavity, the first conductive end and the second conductive end are electrically connected with the micro electromagnet, and the locking end is fixedly connected on one side of the elastic supporting piece facing the first through hole; when the first conductive end and the second conductive end are not connected with a power supply, one end of the locking end, which is far away from the elastic supporting piece, is positioned in the first through hole, the armatures and the micro electromagnets are distributed at intervals, the sliding block at the moment can slide along the circumferential direction of the first jack at will and is not limited by the locking end, when the power supply is connected with the power supply, the micro electromagnets attract the armatures to enable the armatures to drive the elastic supporting piece to move towards one side of the first through hole, so that the locking end can penetrate out of the first through hole, and when the sliding block is positioned at the matched end, the locking end can directly penetrate into the slot to lock the sliding block.

Further, the first conductive end comprises a first metal elastic sheet, one end of the first metal elastic sheet is electrically connected to the micro electromagnet, the other end of the first metal elastic sheet is embedded into the insulating main body and penetrates into the first jack, and one end of the first metal elastic sheet extending into the first jack is used for being elastically matched with the first complementary terminal, so that the first complementary terminal can penetrate into the first inserting cavity and is electrically connected with the first metal sheet.

The invention provides a terminal structure and particularly comprises a pin header in a rod-shaped structure, wherein the pin header is limited to be a first complementary terminal in the above description, the pin header is provided with a mounting end used for being connected with a complementary type electric connector and a plugging end penetrating into the first jack and matched with a conductive terminal group, a sliding groove spirally wound on the plugging end is concavely formed on the outer wall of the pin header from the end far away from the plugging end towards the side close to the mounting end, the sliding groove is used for enabling a clamping part to slide and penetrate into the sliding groove, when the pin header penetrates into the first jack and passes through the clamping part, the part of the clamping part extending into the first jack enters the sliding groove from the side of the sliding groove far away from the mounting end, at the moment, the clamping part is in an initial position, and continuously moves in the plugging direction, during the pin header moving process, the clamping part slides in the matching position and moves towards the matching position until the pin header is inserted into the conductive terminal group, after a power supply is turned on, the clamping part is matched with the locking end to enable the clamping part to slide to be locked, and the pin header cannot be continuously connected with the pin header in a stable and powered on state, and even if the pin header is continuously connected in a stable powered state.

The electric connector with the power-on locking function, namely the terminal structure, has at least the following beneficial effects: the insulation main body is used for being in plug-in fit with the complementary type electric connector, and the conductive terminal group is used for being in plug-in fit with the first complementary terminal and the second complementary terminal after the insulation main body is connected with the complementary type electric connector, so that electric signal transmission between the electric connector and the complementary type electric connector is realized; when the first complementary terminal penetrates into the insulating main body through the first jack, the clamping part is in insertion fit with the first complementary terminal, but the clamping part can slide along the circumferential direction of the first jack at the moment to enable the first complementary terminal to be movable, after the power is connected, the locking end is enabled to lock the clamping part by the electrified matching part to enable the clamping part to be unable to slide continuously, and the first complementary terminal is limited by the clamping part and is unable to move relative to the insulating main body, so that connection between the complementary terminal and the insulating main body is effectively limited, and use safety of the whole electric connector is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

Fig. 1 is a schematic view of an assembled structure of an electrical connector and a terminal structure of the present invention;

FIG. 2 is an exploded view of the electrical connector and terminal structure of the present invention;

fig. 3 is a top view of the assembled electrical connector and terminal structure of the present invention;

FIG. 4 is a cross-sectional view taken along the direction A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

fig. 6 is a partial mating top view of the snap-fit, insulator body, energized mating and terminal structure of the present invention;

fig. 7 is a front view of the electrical connector and terminal structure of the present invention;

FIG. 8 is a cross-sectional view taken along the direction C-C as shown in FIG. 7;

fig. 9 is a partial front cross-sectional view of the electrical connector assembly of the present invention taken along the first gripping section of the second terminal.

The meaning of the reference numerals in the drawings are:

an insulating body-1; the device comprises a base-1 a, an outer convex part-1 b, a mounting cavity-11; a first plug-in cavity-12; a close-fit groove section-121; mating groove segment-122; a blocking portion-123; a second plug-in cavity-13; step surface-14; plug-in block-141; a first jack-15; a second jack-16; a sliding chamber-17; -an active space-18; a first through hole-181;

a circuit board-2; a second positioning hole-21;

a conductive terminal group-3; a connection end-3 a, a mating end-3 b, a second terminal-31; a second clamping section-311; a second resilient barb-3111; a second plug section-312; third arm segment-3121; fourth arm segment-3122; hook-3123; a first elastic convex portion-313; a first terminal-32; an electrode sleeve-321; a third jack cavity-3211; first barrel segment-3212; a second barrel segment-3213; annular groove-3214; positioning columns-3215; metal spring plate-322; support bar-3221; rib-3222; a second elastic convex portion-3223;

Pin header-4; a mounting end-41; plug section-411; a plug end-42; chute-43;

an engagement portion (5); a slider-51; slotting-511; a slide pin-52; a spring-53;

an energizing mating part-6; a first conductive terminal-61; a second conductive terminal-62; locking end-63; a micro electromagnet-64; an elastic support sheet-65; armature-66.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 8, a terminal structure of the present invention includes a pin header 4 having a rod-like structure, the pin header 4 having a mounting end 41 for connection with a complementary electrical connector and a plugging end 42 for plugging with an electrical connector having an energizing self-locking function. The pin header 4 is made of conductive metal material, the mounting end 41 and the plugging end 42 of the entire pin header 4 are in cylindrical structures, and the diameter of the plugging end 42 is smaller than that of the mounting end 41. At the end of the mounting end 41 of the pin header 4 remote from the plug end 42, a plug section 411 having a smaller diameter than the mounting end 41 is formed, said plug section 411 being intended for connection to the circuit board 2 of the complementary electrical connector. The hemispherical guiding end surfaces are arranged at the ends of the plugging section 411 and the plugging end 42, so that the rapid assembly and guiding of the pin header 4 are facilitated. A chute 43 is formed on the outer wall of the insertion end 42 of the pin header 4 from the end of the insertion end 42 toward the side close to the mounting end 41 and around the outer wall of the pin header 4, and the chute 43 is arranged obliquely with respect to the axial direction of the pin header 4 so that the chute 43 spirals on the outer wall of the pin header 4 to be in a certain spiral shape, and the side of the chute 43 close to the end of the insertion end 42 penetrates through the guide end face. In the context defined by the present invention, the pin header 4, which is one of the terminals of the complementary electrical connector, is a first complementary terminal for transmitting a large current and is defined in the present invention as a complementary electrical connector, which also comprises a second complementary terminal for transmitting a small current. It should be noted that the complementary electrical connector has an insulative housing on which both the first and second complementary terminals are mounted.

As shown in fig. 1 to 9, the electrical connector with an energizing locking function of the present invention includes an insulating body 1 provided with a first insertion hole 15 along a plugging direction, a circuit board 2 for transmitting signals, a conductive terminal group 3 provided on the insulating body 1 along the plugging direction, a snap-in portion 5 provided on the insulating body 1 to slide freely along a circumferential direction of the first insertion hole 15, and an energizing mating portion 6 provided on the insulating body 1, the first insertion hole 15 penetrating through a second surface of the insulating body 1 along the plugging direction, the insulating body 1 being accommodated in a complementary electrical connector to be plugged with the complementary electrical connector gradually, the conductive terminal group 3 being for plugging-in mating with the pin header 4 and the second complementary terminal respectively and realizing transmission of electrical signals; the clamping part 5 is used for being clamped into the sliding groove 43 when the pin header 4 penetrates into the first jack 15, and slides along the circumferential direction of the first jack along with the sliding groove 43 coiled on the outer wall of the pin header 4 in the process of continuously moving the pin header 4 along the inserting direction until the pin header 4 is matched with the conductive terminal group 3, the pin header 4 is electrically connected with the conductive terminal group 3, and the clamping part 5 still stays in the sliding groove 43; the energizing matching part 6 is elastically connected with the pin header 4 when the pin header 4 is inserted into the first jack 15, and the energizing matching part 6 is electrically connected with the conductive terminal group 3 at the same time; however, the locking portion 5 still slides along with the movement of the pin header 4 in the plugging direction, when the whole electric connector and the complementary electric connector are applied to an automobile, for example, and the automobile is started to be powered on, current is transmitted between the electric connector and the complementary electric connector through the pin header 4 and the conductive terminal group 3, and the current is also conducted by the power-on matching portion 6 to limit and fix the locking portion 5, so that the locking portion 5 cannot slide any more to lock the pin header 4, and on the premise of no power failure, even if the automobile body vibrates, the gap between the insulating main body 1 and the complementary electric connector collides, the locking portion 5 can always limit the pin header 4 in the first jack 15, so that the insulation main body 1 and the complementary electric connector cannot fall off and separate, and the safety between the electric connector and the complementary electric connector is greatly improved.

The insulating body 1 is made of insulating material and is also in a cuboid structure as a whole, and the length, width and height of the insulating body 1 are adapted to the arrangement of the complementary electric connector for mutual insertion. The bottom surface of the insulating body 1 is a first surface thereof, and the top surface of the insulating body 1 is a second surface thereof (the top surfaces of the respective members are all referred to as a second surface thereof, and the bottom surfaces of the respective members are all referred to as a first surface thereof in the present invention). First and second plugging cavities 12 and 13 penetrating through the first surface of the insulating body 1 in the plugging direction are provided on the insulating body 1 in one-to-one correspondence to the positions and the number of the conductive terminal groups 3. Preferably, the insulating body 1 includes a base 1a and an outer protrusion 1b formed on the second surface of the base 1a and protruding toward the first surface along the plugging direction, and the outer protrusion 1b is shaped to fit into a corresponding groove-like structure of the complementary electrical connector for plugging engagement. A step surface 14 is provided between the base 1a and the outer flange 1b, so that the complementary electrical connector can be abutted against the step surface 14 when the outer flange 1b penetrates into the complementary electrical connector. The first plugging cavity 12 and the second plugging cavity 13 are both opened from the first surface of the base 1a towards one side of the outer convex portion 1b along the plugging direction and are opened into the outer convex portion 1 b. And two second plugging cavities 13 are arranged, and the first plugging cavity 12 is positioned between the two second plugging cavities 13.

A first jack 15 and a second jack 16 are respectively arranged on the second surface of the outer flange 1b, the first jack 15 is formed by arranging the positions, right corresponding to the first plug-in cavities 12, on the second surface of the insulating main body 1 and is arranged in a one-to-one correspondence manner with the first plug-in cavities 12 along the plug-in direction, the second jack 16 is formed by arranging the positions, right corresponding to the second plug-in cavities 13, on the second surface of the insulating main body 1 and is arranged in a one-to-one correspondence manner with the second plug-in cavities 13, the conductive terminal group 3 is arranged in the first plug-in cavities 12 and the second plug-in cavities 13, the first complementary terminals of the complementary type electric connector penetrate into the first plug-in cavities 12 through the first jack 15 to be matched with the conductive terminal group 3, and the second complementary terminals penetrate into the second plug-in cavities 13 through the second jack 16 to be matched with the conductive terminal group 3, so that connection transmission of high current and low current is realized. One end of the first jack 15 is communicated with the first plug cavity 12, and the other end of the first jack 15 penetrates through the second surface of the outer flange 1b, so that the plug end 42 of the first complementary terminal can penetrate into the first plug cavity 12 after penetrating through the first jack 15; one end of the second jack 16 is communicated with the second plug cavity 13, and the other end of the second jack 16 penetrates through the second surface of the outer flange 1b, so that the second complementary terminal can penetrate into the second plug cavity 13 after penetrating through the second jack 16. The outer flange 1b is provided with a mounting cavity 11 along the plugging direction, which penetrates through the second surface of the outer flange 1b and is penetrated by an inward convex structure corresponding to the complementary type electric connector, and the inward convex structure penetrates into the mounting cavity 11 after the complementary type electric connector is mounted on the insulating main body 1. The second plugging cavity 13 is concavely formed on a side wall of the mounting cavity 11 facing the inward convex structure along the width direction (i.e. the side of the second plugging cavity 13 facing the inward direction along the width direction) so as to be communicated with the mounting cavity 11, and the first surface of the second plugging cavity 13 penetrates through the second surfaces of the outer protrusion 1b and the base 1a along the plugging direction. The mounting cavity 11 is defined on a side thereof adjacent to the second surface of the insulating body 1 as said second receptacle 16 so as to facilitate the passage of the second complementary terminal through the second receptacle 16.

Preferably, an insert block 141 is formed on the step surface 14 in a protruding manner in the insertion direction; the mutual insulation main body 1 is provided with an avoidance groove to reduce materials and prevent deformation.

A fan-shaped sliding cavity 17 is formed in the insulating main body 1 by the inner wall of the first jack 15 around the circumferential direction of the first jack 15, the circumferential direction of the first jack 15 is limited to be the a direction, one side of the sliding cavity 17 close to the first jack 15 is communicated with the first jack 15, the clamping part 5 is arranged in the sliding cavity 17, and a flange for blocking the whole clamping part 5 from falling out of the sliding cavity 17 is arranged on one side of the sliding cavity 17 close to the first jack 15 along the inserting direction. And a movable space 18 is formed in the insulating main body 1, the movable space 18 is arranged opposite to the sliding cavity 17 along the inserting direction, and the energizing fit part 6 is arranged in the movable space 18. Preferably, a first through hole 181 penetrating the sliding cavity 17 is formed in an inner wall of the side of the movable space 18 near the sliding cavity 17 along the insertion direction, and the first through hole 181 penetrates the movable space 18, so that the movable space 18 and the movable cavity are communicated through the first through hole 181.

The circuit board 2 is in a rectangular parallelepiped structure and is arranged parallel to the first surface of the insulating body 1, and the circuit board 2 is located on a side of the insulating body 1 close to the first surface.

The conductive terminal set 3 includes a first terminal 32 and a second terminal 31 distributed along the plugging direction, the first terminal 32 is inserted into the first plugging cavity 12 for transmitting a large current in cooperation with the first complementary terminal, the first terminal 32 and the second terminal 31 are both made of conductive materials such as metal, and the second terminal 31 is installed in the second plugging cavity 13 for transmitting a small current in cooperation with the second complementary terminal. The second terminal 31 and the first terminal 32 are made of conductive metal, and the second terminal 31 and the first terminal 32 each have a mating end 3b for mating with the mating end 42 of the corresponding complementary terminal and a connecting end 3a for connecting with the circuit board 2, and the connecting ends 3a of the second terminal 31 and the first terminal 32 each extend out of the insulating body 1 and are then connected to the circuit board 2. The mating end 3b of the first terminal 32 is inserted into the first jack cavity 12, and the first terminal 32 is disposed corresponding to the first jack 15, so that the mating end 3b of the first terminal 32 and the jack end 42 of the first complementary terminal can be mutually mated and contacted, and after the connection end 3a of the first terminal 32 passes through the first jack cavity 12 in a direction away from the complementary electrical connector, the connection end 3a of the first terminal 32 continues to extend until penetrating out of the first surface of the insulating body 1 and then extending onto the circuit board 2. The mating end 3b of the second terminal 31 is inserted into the second inserting cavity 13, and the second terminal 31 is disposed corresponding to the second inserting hole 16, so that the mating end 3b of the second terminal 31 and the second complementary terminal can be mutually mated and contacted, and the connection end 3a of the second terminal 31 passes through the second inserting cavity 13 in a direction away from the complementary electric connector and extends onto the circuit board 2 after passing through the first surface of the insulating body 1.

The first terminal 32 includes an electrode sleeve 321 and a metal spring piece 322 inserted in the first plugging cavity 12, the metal spring piece 322 is installed in the electrode sleeve 321, and the plugging end 42 of the first complementary terminal is plugged in the electrode sleeve 321 and tightly matched with the metal spring piece 322, so that the contact connection between the first terminal 32 and the first complementary terminal is realized while the basic connection between the first terminal 32 and the first complementary terminal is realized, and the electric signal transmission is convenient.

In the present embodiment, the electrode sleeve 321 has a third plugging cavity 3211 in which the metal spring piece 322 is tightly fitted in an annular shape and penetrates through the second surface of the electrode sleeve 321, and the metal spring piece 322 is installed in the third plugging cavity 3211, and the plugging end 42 of the first complementary terminal penetrates into the third plugging cavity 3211 to be matched with the metal spring piece 322. The electrode sleeve 321 is in a circular tube structure, the electrode sleeve 321 comprises a first tube section 3212 penetrating into the first inserting cavity 12 and a second tube section 3213 penetrating out of the first surface of the insulating main body 1, and the first inserting cavity 12 is also cylindrical, and the diameter of the first tube section 3212 is consistent with that of the first tube section 3212 so as to be matched with that of the first tube section 3212, so that the first tube section 3212 can be just inserted into the second inserting cavity 13. The first barrel segment 3212 and the first socket 12 may also be provided in a spline shape to be connected by spline connection so as to be able to restrict the degree of freedom of the electrode sleeve 321 and the insulating body 1 in the length direction and the width direction. Preferably, the diameter of the first barrel segment 3212 is greater than the diameter of the first socket 15 to limit the first barrel segment 3212 from penetrating into the first socket 15. In order to facilitate the rapid installation of the electrode sleeve 321 in the first plugging cavity 12 during the assembly, a third guiding opening is formed at one end of the first plugging cavity 12 close to the first surface of the insulating body 1, the third guiding opening has a truncated cone-shaped structure with a large opening end at one side close to the first surface of the insulating body 1 and a small opening end at one side close to the second surface of the insulating body 1, and the diameter of the small opening end of the third guiding opening is equal to the diameter of the third plugging cavity 3211. In order to avoid interference between the edge of the connection between the small end of the third guide opening and the third plug-in space 3211 and the first barrel section 3212 after installation, an annular recess 3214 is formed concavely around the circumference at the position of the first barrel section 3212 corresponding to the small end of the third guide opening.

Preferably, the first surface of the electrode sleeve 321 is formed with a positioning post 3215 extending along the plugging direction towards the side far away from the electrode sleeve 321, and the circuit board 2 is formed with a second positioning hole 21 for the positioning post 3215 to penetrate through at a position corresponding to the positioning post 3215, so that after the electrode sleeve 321 is installed in the first plugging cavity 12, positioning between the insulating main body 1 and the circuit board 2 is realized through cooperation between the second positioning hole 21 and the positioning post 3215, and each first terminal 32 is ensured to be located at a predetermined position of the circuit board 2.

The metal spring plate 322 is in a rectangular sheet structure, and the metal spring plate 322 comprises two support bars 3221 which are parallel and arranged at intervals and a plurality of ribs 3222 which are arranged between the two support bars 3221 and perpendicular to the support bars 3221 at equal intervals, wherein two ends of each rib 3222 are respectively connected with the two support bars 3221 and integrally formed with the two support bars 3221. The whole metal elastic sheet 322 is bent and is close to each other end to end, so that the metal elastic sheet 322 can be rolled into a circular tube structure, the two ends of the supporting bar 3221 of the metal elastic sheet 322 can be abutted against each other, and when the supporting bar 3221 is parallel to the axial direction of the metal elastic sheet 322 at the moment, the diameter of the metal elastic sheet 322 at the moment is smaller than the diameter of the third inserting cavity 3211, so that the metal elastic sheet 322 can penetrate into the third inserting cavity 3211 when being rolled into a ring shape. In order to prevent the metal elastic sheet 322 from separating from the third inserting cavity 3211, a cylindrical limit opening with a diameter smaller than that of the third inserting cavity 3211 is formed on one side, close to the second surface of the electrode sleeve 321, of the third inserting cavity 3211 in an inward extending manner along the radial direction, the limit opening is communicated with the third inserting cavity 3211 and penetrates through the second surface of the electrode sleeve 321, the diameter of the metal elastic sheet 322 when the metal elastic sheet is rolled into a ring shape and two ends of the support bar 3221 are abutted against each other is smaller than or equal to that of the limit opening, and the diameter of the limit opening is larger than or equal to that of the inserting end 42 of the first complementary terminal. When the metal spring piece 322 is rolled into a ring shape and kept in the ring shape during assembly, and then the metal spring piece 322 passes through the limiting opening and enters the third inserting cavity 3211, the metal spring piece 322 is stretched by the characteristics of materials and tightly attached to the inner wall of the third inserting cavity 3211, so that the metal spring piece 322 is tightly matched with the electrode sleeve 321, the stretched metal spring piece 322 cannot move towards the outside of the limiting opening in the inserting direction by the limiting opening, the metal spring piece 322 is limited to prevent the metal spring piece 322 from separating from the third inserting cavity 3211, and the diameter of the metal spring piece 322 which is enclosed into the ring shape is larger than the diameter of the inserting end 42 of the first complementary terminal, so that the inserting end 42 of the first complementary terminal can penetrate into the inner side of the metal spring piece 322. Preferably, the middle part of each rib 3222 of the metal elastic sheet 322 is bent and protruded towards the same side along the direction perpendicular to the rib 3222 so as to form a second elastic convex portion 3223 in the middle part of the metal elastic sheet 322 towards the inner concave direction, and each rib 3222 is arc-shaped. When assembling, the rectangular metal elastic piece 322 is bent and the second elastic protruding portions 3223 are inwards rolled into a ring shape, so that each second elastic protruding portion 3223 is located at the inner side, the second elastic protruding portion 3223 of the rolled metal elastic piece 322 is surrounded by a circular matching cavity, the diameter of the matching cavity is smaller than that of the plugging end 42 of the first complementary terminal, when the plugging end 42 of the first complementary terminal penetrates into the inner side of the metal elastic piece 322 through the limiting opening until moving to the matching cavity, the plugging end 42 of the first complementary terminal presses the second elastic protruding portion 3223 to enable the second elastic protruding portion 3223 to deform towards the inner wall side of the second plugging cavity 13 until after the plugging end 42 of the first complementary terminal passes through the matching cavity, each rib 3222 abuts against the plugging end 42 of the first complementary terminal to enable the plugging end 42 of the first complementary terminal to be tightly matched with the second elastic protruding portion 3223.

In the present embodiment, after the connection end 3a of the second terminal 31 is bent from the end of the mating end 3b near the first surface of the insulating body 1, the second terminal 31 extends toward the side far away from the insulating body 1 in the width direction, and the connection ends 3a of the second terminal 31 are all located outside the insulating body 1 and are connected to corresponding positions on the circuit board 2 by soldering or the like, so as to realize electrical signal connection between the second terminal 31 and the circuit board 2. A second escape groove is provided in the width direction at a position on the first surface of the insulating body 1 corresponding to the connection end 3a of the second terminal 31 so as to provide a space for tin when the connection end 3a of the second terminal 31 is soldered to the circuit board 2 by soldering. The mating end 3b of the second terminal 31 includes a second clamping section 311 arranged in the plugging direction and a second plugging section 312 extending from the second clamping section 311 toward the side of the second surface of the insulating body 1. Preferably, the second plugging cavity 13 includes a close-fitting groove section 121 formed on the outer flange 1b and a mating groove section 122 formed on the outer flange 1b, the close-fitting groove section 121 penetrates the mating groove section 122, and the lengths of the close-fitting groove section 121 and the second clamping section 311 are both greater than those of the mating groove section 122 and the second plugging section 312. A plurality of second elastic barbs 3111 are symmetrically and convexly arranged on two opposite sides of the second clamping section 311, one end, away from the second clamping section 311, of the second elastic barbs 3111 is obliquely arranged towards one side of the connecting end 3a of the second terminal 31, the maximum distance between the second elastic barbs 3111 on two sides of the second clamping section 311 is larger than the maximum length of the matching groove section 122, and the minimum distance between the second elastic barbs 3111 on two sides of the second clamping section 311 is smaller than the length and width of the matching groove section 122. The second elastic barb 3111 and the second clamping section 311 have a fourth avoiding space for the second elastic barb 3111 to move, and the second terminal 31 has a certain elasticity due to the characteristic of the material, therefore, when the second clamping section 311 penetrates into the close-fit groove section 121, the second elastic barb 3111 will be extruded by the inner wall of the close-fit groove section 121 to deform, and the second elastic barb 3111 will move towards the fourth avoiding space until the second elastic barb 3111 abuts against the inner wall of the close-fit groove section 121 and can pass through the close-fit groove section 121, so that the second clamping section 311 can enter into the close-fit groove section 121 and be close-fit with the close-fit groove section 121. Preferably, the second clamping section 311 is narrowed from the second elastic barb 3111 toward the second inserting section 312 at one end of the second clamping section 311 near the second inserting section 312 until being connected to the second inserting section 312, so as to reduce hard interference between the second clamping section 311 and the close-fitting groove section 121. The second socket section 312 includes a third arm section 3121 extending from the second clamping section 311 to the side of the second socket 16 and a fourth arm section 3122 extending from the third arm section 3121 toward the second socket 16, one end of the third arm section 3121 away from the second clamping section 311 is inclined toward the inner side in the width direction, one end of the fourth arm section 3122 near the third arm section 3121 is inclined toward the inner side in the width direction and is connected to the third arm section 3121 such that the first elastic protrusion 313 protruding toward the inner side in the width direction is provided on the mating end 3b of the second terminal 31, and since the first elastic protrusion 313 protrudes outward with respect to the mating groove section 122, a first escape space for escaping when the first elastic protrusion 313 is deformed is formed on the mating groove section 122 of the second socket 13 to provide a deformation space for the first elastic protrusion 313, and when the first elastic protrusion 313 and the second complementary terminal 313 are pressed against each other to deform, the third arm section 3121 and the fourth arm section 3122 move inward toward the first escape space. Preferably, the end of the fourth arm segment 3122 away from the third arm segment 3121 is provided with a hook 3123 extending toward the second jack 16 along the plugging direction, correspondingly, a blocking portion 123 is formed on the second surface of the mating groove segment 122 of the second plugging cavity 13 and on the side close to the inner side along the plugging direction toward the close-fitting groove segment 121, the hook 3123 is located in the second plugging cavity 13 in the blocking portion 123, and the blocking portion 123 is used for limiting the hook 3123 to prevent the hook 3123 from penetrating out of the mating groove segment 122 in the width direction, so as to avoid the second complementary terminal from being blocked by the hook 3123 and not entering into the mounting cavity 11 when the second complementary terminal passes through the second jack 16 because the hook 3123 extends out of the mating groove segment 122.

When the second complementary terminal is assembled, when the complementary type electric connector penetrates into the mounting cavity 11, the fourth arm segment 3122 corresponding to the second complementary terminal is pressed by the second complementary terminal, and the fourth arm segment 3122 is inclined relatively to guide the second complementary terminal, so that the second complementary terminal can move towards the mounting cavity 11 after pressing the fourth arm segment 3122, and the third arm segment 3121 and the fourth arm segment 3122 move towards the first avoidance space until the complementary type electric connector is mounted, and the first elastic convex part 313 abuts against the second complementary terminal.

The engaging portion 5 is made of a non-magnetic attraction material, and the engaging portion 5 includes a slider 51 provided in the sliding chamber 17 so as to slide in a circumferential direction of the first insertion hole 15, a slide pin 52 formed on a side surface of the slider 51 facing the first insertion hole 15, and a spring 53 provided in the sliding chamber 17, the slider 51 sliding in the circumferential direction of the first insertion hole 15 in the sliding chamber 17 and having an initial position and a fitting position with respect to the sliding chamber 17 and the first insertion hole 15, the spring 53 being in a compressed state when the first complementary terminal is not inserted into the first insertion hole 15, both ends of the spring 53 being respectively connected to an inner wall of the sliding chamber 17 and the slider 51 and pressing the slider 51 in a direction away from the spring 53 so that the slider 51 contacts a side wall of the sliding chamber 17 away from the spring 53, the slider 51 being in the initial position at which a space for the slider 51 to slide in the circumferential direction of the first insertion hole 15 is provided between a side of the slider 51 near the spring 53 and the sliding chamber 17; the sliding pin 52 is arranged along the radial direction of the first jack 15, one end of the sliding pin 52 penetrates out of the sliding cavity 17 and extends into the first jack 15, the sliding groove 43 on the first complementary terminal is used for the sliding pin 52 to slide into, and when the sliding block 51 is in the initial position, the first complementary terminals which are arranged into two are relatively fixed due to the connection with the complementary electric connector, therefore, when the two first complementary terminals are mounted on the insulating main body 1, the positions of the two first complementary terminals are relatively fixed, when the first complementary terminals are mounted in the first jack 15, one end of the sliding groove 43 far away from the mounting end 41 of the first complementary terminal is positioned on the same straight line with the sliding pin 52 in the axial direction parallel to the first jack 15, the end of the sliding groove 43 far away from the mounting end 41 is opened due to the fact that the sliding end penetrates through the guiding end surface, and the length of the sliding pin 52 is larger than the gap between the first complementary terminal and the first jack 15, when the first complementary terminal continues to move in the first jack cavity 12, and when the sliding groove 43 is spirally wound on the outer wall 42 of the sliding groove, the sliding groove 43 is arranged in the first jack cavity 42, the sliding pin is arranged in the circumferential direction along the circumference of the sliding groove 52 along the first jack 52 along the circumference direction, and the sliding pin 52 slides along the circumference of the first jack 51 along the sliding groove 52 along the circumference direction, and the sliding pin 52 along the circumference of the first jack 51 along the sliding groove, and the sliding pin is mounted in the circumferential direction, and the sliding groove 52 along the inner wall, and the sliding pin is arranged along the circumference of the sliding groove 51 along the sliding groove, and the sliding groove 52 along the sliding groove.

The energizing fit portion 6 has a first conductive end 61 extending into the first jack 15 for elastic fit with the first complementary terminal, a second conductive end 62 electrically connected with the first terminal 32 of the conductive terminal group 3, and a locking end 63 restricting sliding of the slider 51 in the fit position after energizing the first conductive end 61 and the second conductive end 62, one end of the first conductive end 61 is electrically connected to the energizing fit portion 6, the other end of the first conductive end 61 extends into the first jack 15 and is tightly fit with the first complementary terminal when the first complementary terminal penetrates into the first jack 15 to enable electric signal connection when the power is turned on; one end of the second conductive end 62 is electrically connected to the power-on mating portion 6, and the other end of the second conductive end 62 extends into the first socket cavity 12 to be connected with the first terminal 32, so that when the power is turned on, electrical signal communication with the first terminal 32 is realized, and circuit communication of the power-on mating portion 6 is realized; the locking end 63 is arranged in the movable space 18 and is connected to the energizing matching part 6, the locking end 63 is arranged relative to the first through hole 181 in the plugging direction parallel to the first jack 15, the locking end 63 penetrates into the first through hole 181, when the energizing matching part 6 is powered on, the locking end 63 penetrates into the sliding cavity 17 to be used for locking the sliding block 51, so that the sliding block 51 cannot slide any more, even if vibration occurs, the sliding block 51 and the first complementary terminal cannot be caused to shift, and the stability between the electric connector and the complementary electric connector is ensured; when the power supply of the power supply matching part 6 is disconnected, the locking end 63 withdraws from the sliding cavity 17 to withdraw into the first through hole 181, at this time, the first complementary terminal moves towards the outside of the first jack 15, the sliding pin 52 moves along with the sliding groove 43 to reversely withdraw the sliding block 51 along the circumferential direction of the first jack 15 until the sliding pin 52 withdraws from the sliding groove 43, at this time, the sliding block 51 moves to the initial position, and the limitation of the spring 53 pulls the sliding block 51 to keep the initial position, so that the locking or unlocking of the sliding block 51 can be completed, and the locking and unlocking of the first complementary terminal can be completed.

The energizing fit portion 6 includes a micro electromagnet 64 disposed in the movable space 18 and located on a side of the movable space 18 near the sliding cavity 17, an elastic support piece 65 disposed in the movable space 18 and movable relative to the micro electromagnet 64 in the plugging direction, and an armature 66 disposed on the elastic support piece 65, both the elastic support piece 65 and the armature 66 being located on a side of the micro electromagnet 64 far from the sliding cavity 17, both the first conductive end 61 and the second conductive end 62 being electrically connected to the micro electromagnet 64 so as to be capable of making the micro electromagnet 64 magnetically attractive after the power is turned on, the locking end 63 being fixedly connected to a side of the elastic support piece 65 facing the first through hole 181. The locking end 63 is located on a side of the movable space 18 away from the sliding cavity 17, and an end portion of the locking end 63 movably penetrates into the first through hole 181, a slot 511 for the locking end 63 to penetrate into is formed in a plugging direction on a side surface of the sliding block 51 facing the first through hole 181, and the slot 511 is opposite to the first through hole 181 when the sliding block 51 slides to a matching position along a circumferential direction of the first jack 15. In the present embodiment, the locking end 63 is a pin, the first through hole 181 and the slot 511 are all cylindrical, and the diameter of the pin is smaller than the diameters of the slot 511 and the first through hole 181 and are coaxially distributed. When the first conductive end 61 and the second conductive end 62 are not powered on, one end of the locking end 63 away from the elastic supporting piece 65 is located in the first through hole 181, the armature 66 and the micro electromagnet 64 are distributed at intervals, the armature 66 is in the magnetic attraction range of the micro electromagnet 64, when the first conductive end 61 and the second conductive end 62 are powered on, the micro electromagnet 64 attracts the armature 66 to enable the armature 66 spaced from the micro electromagnet 64 to be magnetically attracted to the micro electromagnet 64, and the elastic supporting piece 65 connected with the armature 66 moves towards one side of the micro electromagnet 64 to enable the locking end 63 to move towards the sliding cavity 17, so that the sliding block 51 is locked. In this embodiment, the elastic supporting piece 65 may be a self-restoring spring piece, one end of the spring piece is fixedly connected to the inner wall of the movable space 18, the other end of the spring piece is provided with the armature 66, when the micro-electromagnet 64 is not energized, the end of the spring piece provided with the armature 66 faces to the side far away from the micro-electromagnet 64, and after the energization, the spring piece is deformed toward the side of the micro-electromagnet 64 through the armature 66 until the micro-electromagnet 64 is self-restored after the energization. Another embodiment of the elastic supporting piece 65 includes a plastic piece, a sliding rod fixedly disposed in the movable space 18 along the plugging direction, and a pressure spring disposed in the movable space 18 along the plugging direction, wherein a through hole is formed on the plastic piece at a position opposite to the sliding rod, the plastic piece is slidably sleeved on the sliding rod through the through hole, two ends of the pressure spring are respectively connected to the plastic piece and an inner wall of the movable space 18 and are in a stretching state to pull the plastic piece towards a side far away from the micro electromagnet 64, and the armature 66 is connected to the plastic piece and is spaced from the micro electromagnet 64 under the pull of the pressure spring.

The first conductive end 61 includes a first metal spring piece 322 having one end electrically connected to the micro-electromagnet 64 and the other end embedded in the insulating body 1 and penetrating into the first jack 15, and the first metal spring piece 322 extends to one end in the first jack 15 for elastic engagement with the first complementary terminal. The first metal spring 322 is made of an electrically conductive elastic material such as metal. The portion of the first metal elastic piece 322 extending into the first jack 15 is arc-shaped or spherical in the plugging direction, and the length of the portion of the first metal elastic piece 322 extending into the first jack 15 in the radial direction along the first jack 15 is larger than the gap between the first complementary terminal and the first jack 15, so that the first complementary terminal and the first metal elastic piece 322 are mutually pressed and matched when being inserted into the first jack 15, and electric signal connection is achieved. It should be noted that, there is a space in the first jack 15 for the first metal spring piece 322 to deform along the plugging direction, and when the first complementary terminal presses the first metal spring piece 322, the first metal spring piece 322 can be deformed under force and abut against the first complementary terminal. The second conductive end 62 may be a conductive wire, one end of which is connected to the micro-electromagnet 64, and the other end of which extends into the first socket cavity 12 through the inside of the insulating body 1 and covers the inner wall of the first socket cavity 12 to be in contact with the electrode sleeve 321.

One of the working modes of the electric connector with the electrifying locking function and the terminal structure of the invention is as follows:

when the complementary electrical connector is mounted on the insulating body 1, the slider 51 is in the initial position, the armature 66 is spaced from the micro-electromagnet 64, the first complementary terminal penetrates into the first jack 15, the second complementary terminal penetrates into the second jack 16, and when the first complementary terminal passes through the sliding pin 52, the sliding pin 52 penetrates into the sliding groove 43 and slides in the sliding groove 43 along with the continued movement of the first complementary terminal, the slider 51 slides from the initial position to the mating position along the circumferential direction of the first jack 15 until the connection between the electrical connector and the complementary electrical connector is completed after the first complementary terminal is mated with the first terminal 32 and the second complementary terminal is mated with the second terminal 31; after the power is turned on, a large current is transmitted between the first terminal 32 and the first complementary terminal, and at the same time, the current is led to the micro electromagnet 64, so that after the armature 66 is magnetically attracted to the micro electromagnet 64, the locking end 63 is clamped into the slot 511 to limit the sliding block 51, and the second terminal 31 and the second complementary terminal are matched to transmit a small current, and because the sliding block 51 is limited, during the whole use process of the electric connector, the first complementary terminal cannot be separated from the insulating main body 1, and the connection stability between the first complementary terminal and the complementary electric connector is ensured.

Claims

1. An electric connector with an electrifying locking function comprises an insulating main body, a circuit board and a conductive terminal group arranged on the insulating main body along the plugging direction, wherein one end of the conductive terminal group, which is far away from the insulating main body, penetrates out of a first surface of the insulating main body and extends onto the circuit board; the method is characterized in that: the insulation main body is provided with a first jack penetrating through the second surface of the insulation main body along the plugging direction, a clamping part which freely slides along the circumferential direction of the first jack and movably penetrates into the first jack is arranged on the insulation main body, the clamping part is provided with a matching position relative to the first jack and an initial position when the complementary terminal does not penetrate into the first jack, the clamping part is slidably clamped into the first complementary terminal from the outer wall of the first complementary terminal along the circumferential direction of the first jack when the complementary terminal is inserted into the first jack, and an electrifying matching part is also arranged on the insulation main body, and the electrifying matching part is provided with a first conductive end which extends into the first jack and is used for being elastically matched with the first complementary terminal, a second conductive end which is electrically connected with the conductive terminal group and a locking end which limits the sliding of the clamping part positioned at the matching position after electrifying the first conductive end and the second conductive end;

A fan-shaped sliding cavity is formed in the insulating main body by the inner wall of the first jack around the circumferential direction of the first jack, and the sliding cavity penetrates through the first jack; the clamping part comprises a sliding block, a sliding pin and a spring, wherein the sliding block is arranged in the sliding cavity in the circumferential direction of the first jack, the sliding pin is formed on one side surface of the sliding block facing the first jack, the spring is arranged in the sliding cavity, the sliding pin movably penetrates through the sliding cavity and extends into the first jack, two ends of the spring are respectively connected with the sliding block and the inner wall of the sliding cavity, the spring is in a compressed state under the action of no external force, and the sliding block is extruded by the spring and is positioned at an initial position far away from one side of the spring;

the insulating main body is internally provided with a movable space, the movable space is right for the sliding cavity is arranged, the electrified matching part is arranged in the movable space, a first through hole penetrating through the sliding cavity is formed in the inner wall of one side, close to the sliding cavity, of the movable space along the plugging direction, the locking end of the electrified matching part is positioned on one side, far away from the sliding cavity, of the movable space, the end part of the locking end movably penetrates into the first through hole, a slot for the locking end to penetrate into is formed in the side, facing to the first through hole, of the sliding block along the plugging direction, the slot is right for the first through hole when the sliding block slides to the matching position along the circumferential direction of the first jack, and when the electrified matching part is powered on through the first conductive end and the second conductive end, the locking end slides in the sliding cavity along the plugging direction.

2. The electrical connector with power-on locking function as claimed in claim 1, wherein: the insulation main body is respectively provided with a second plug-in cavity and a first plug-in cavity which penetrate through the first surface of the insulation main body along the plug-in direction, the first plug-in hole is formed by opening a position, opposite to the first plug-in cavity, on the second surface of the insulation main body, and the first plug-in hole is communicated with the first plug-in cavity;

a second jack which corresponds to the second plug-in cavity and is used for the second complementary terminal to pass through is formed in the second surface of the insulating main body, one end of the second jack is communicated with the second plug-in cavity, and the other end of the second jack penetrates through the second surface of the insulating main body;

the conductive terminal group comprises second terminals distributed along the plugging direction and first terminals distributed along the plugging direction, the matching ends of the second terminals are inserted in the second plugging cavity, the connecting ends penetrate out of the second plugging cavity in the direction away from the insulating main body and extend to the second circuit board, and the matching ends of the first terminals are inserted in the first plugging cavity, and the connecting ends penetrate out of the first plugging cavity in the direction away from the insulating main body and extend to the second circuit board;

the second conductive end extends into the first plug cavity and is electrically connected with the first terminal.

3. The electrical connector with power-on locking function as claimed in claim 2, wherein: the installation cavity which is communicated with the second surface of the insulating main body is formed in the inserting direction on the insulating main body, the second inserting cavity is formed on the inner wall of the installation cavity along the inward concave direction of the width direction and is communicated with the installation cavity, the matching end of the second terminal penetrates into the second inserting cavity, the matching end of the second terminal is provided with a first elastic convex part which is convexly arranged along the direction of the width direction away from one side of the second inserting cavity, the second inserting cavity is provided with a first avoiding space which is avoided when the first elastic convex part deforms, and one side of the installation cavity, which is close to the second surface of the insulating main body, is limited to be the second inserting hole.

4. The electrical connector with power-on locking function as claimed in claim 3, wherein: the end of the matching end of the second terminal is provided with a hook part, a blocking part is formed on one inward side of the second surface of the second plug-in cavity in a protruding mode, and the hook part is located in the second plug-in cavity at the inner side of the blocking part.

5. The electrical connector with power-on locking function as recited in claim 4, wherein: the first terminal comprises an electrode sleeve and a metal elastic sheet, wherein the electrode sleeve is inserted in the first inserting cavity, a third inserting cavity is formed in the electrode sleeve, in which the metal elastic sheet is in annular tight fit and penetrates through the second surface of the electrode sleeve, and one end, far away from the first inserting hole, of the electrode sleeve extends out of the first surface of the second insulating main body; the middle part of the metal elastic sheet is concavely arranged inwards to form a second elastic convex part which is used for being elastically matched with the matched complementary terminal.

6. The electrical connector with power-on locking function of claim 5, wherein: the power-on matching part comprises a micro electromagnet arranged in the movable space and positioned on one side of the movable space close to the sliding cavity, an elastic supporting piece which is arranged in the movable space and can move relative to the micro electromagnet along the inserting direction, and an armature which is arranged on the elastic supporting piece, wherein the elastic supporting piece and the armature are positioned on one side of the micro electromagnet far away from the sliding cavity, the first conductive end and the second conductive end are electrically connected with the micro electromagnet, and the locking end is fixedly connected on one side of the elastic supporting piece facing the first through hole; when the first conductive end and the second conductive end are not powered on, one end of the locking end, which is far away from the elastic supporting piece, is positioned in the first through hole, and the armatures and the micro electromagnets are distributed at intervals.

7. The electrical connector with power-on locking function as recited in claim 6, wherein: the first conductive end comprises a first metal elastic sheet, one end of the first metal elastic sheet is electrically connected to the micro electromagnet, the other end of the first metal elastic sheet is embedded into the insulating main body and penetrates into the first jack, and one end of the first metal elastic sheet, which extends into the first jack, is used for being elastically matched with the first complementary terminal.

8. A terminal structure, characterized in that: the pin header comprises a pin header in a rod-shaped structure, the pin header is provided with a mounting end used for being connected with a complementary type electric connector and a plugging end penetrating into a first jack defined in any one of claims 1 to 7 and matched with a conductive terminal group, a sliding groove spirally wound on the plugging end is concavely formed on the outer side wall of the plugging end from the end far from the plugging end towards the side close to the mounting end around the outer wall of the pin header, and the sliding groove is used for enabling a clamping part defined in any one of claims 1 to 7 to slide and penetrate into the sliding groove.