CN214957416U

CN214957416U - Wire end connector and connector assembly

Info

Publication number: CN214957416U
Application number: CN202120282021.2U
Authority: CN
Inventors: 杨文初; 唐辉; 刘振兴; 李杭; 柯英豪
Original assignee: Amphenol Assembletech Xiamen Co Ltd
Current assignee: Amphenol Assembletech Xiamen Co Ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-30
Anticipated expiration: 2031-02-01

Abstract

A board end connector comprises an insulator, a first electric connection part, a cable, a locking assembly and a pulling component; the first electric connection part is arranged in the insulator, and the cable is electrically connected with the first electric connection part; the lock catch assembly comprises lock tongues arranged at two ends of the insulator; the pulling part comprises a pair of pulling arms, each pulling arm is connected to the outer side of the lock catch assembly, and the lock tongue can be outwards ejected from the insulator and retracted under the action of the pair of pulling arms. The utility model relates to a line end connector can reduce the whole height of product, is applicable to low connector structure, and the hasp subassembly is less with the clearance and the tolerance of matching the end, and the contact formation of product terminal is little, hasp structural reliability is good.

Description

Wire end connector and connector assembly

Technical Field

The utility model belongs to the technical field of the connector, more specifically relates to a line end connector and connector components.

Background

The plate end connector and the line end connector are locked by structures such as clamping hooks, in the existing connector, the size of the clamping hook is large, the connector is suitable for the high and large scenes of the product size, the requirements on the position gap and the tolerance of the matching between the clamping hook and the product are large, the terminal contact of the product is required to be large, and the installation requirement of a low space is not facilitated. Therefore, there is a need for a connector assembly having a reliable latching structure and that can be adapted for use with low profile connectors.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a line end connector and connector components can have reliable hasp structure, and can be applicable to low connector.

In order to achieve the above object, the present invention provides a wire end connector, which includes an insulator, a first electrical connection portion, a cable, a locking assembly and a pulling member; the first electric connection part is arranged in the insulator, and the cable is electrically connected to the first electric connection part; the lock catch assembly comprises lock tongues arranged at two ends of the insulator; the pulling part comprises a pair of pulling arms, each pulling arm is connected to the outer side of the lock catch assembly, and the lock tongue can be ejected outwards from the insulator and retracted under the action of the pair of pulling arms.

Preferably, the latch assembly further comprises at least one elastic connection assembly and at least one fixing assembly, the fixing assembly is fixedly connected in the insulator, and each fixing assembly is connected to a pair of the elastic connection assemblies;

the fixing assembly comprises a pair of fixing pieces, and one ends of the pair of fixing pieces, which are deviated from each other, are respectively connected to the elastic connecting assembly.

Preferably, the elastic connection assembly comprises a first connecting column and an elastic element, the first connecting column is arranged on the inner side of the lock tongue, and the elastic element is connected between the first connecting column and the fixing piece.

Preferably, a second connecting column is arranged on the fixing piece, and two ends of the elastic element are respectively connected to the first connecting column and the second connecting column.

Preferably, the hasp assembly still includes a pair of spacing connecting plate, first spliced pole with the spring bolt is located respectively on two relative sides of spacing connecting plate.

Preferably, the insulator includes an insulating base and a shell, the shell is disposed on the top of the insulating base and forms a mounting space with the insulating base, and the locking assembly is disposed in the mounting space.

Preferably, a fixing groove is formed in the insulating base body, and the fixing member is arranged in the fixing groove.

Preferably, the insulation seat body comprises two side end faces, a front end face, a rear end face, a top face and a bottom face, and the lock tongue is arranged on the two side end faces of the insulation seat body;

two ends of the insulating base body are respectively provided with a lock tongue hole, and the lock tongue can be popped out of the lock tongue hole or withdrawn from the lock tongue hole;

the top surface of the insulating base body is provided with a latch groove which is concave inwards, the shell is buckled in the latch groove to form the mounting space, and the fixing groove is arranged in the latch groove.

Preferably, avoidance grooves are respectively formed in two sides of the shell, and the limiting connecting plate is arranged in the avoidance grooves.

Preferably, the single arm-drag includes interconnect's connecting portion and pulling portion, connecting portion connect in the outside of limiting connection board, pulling portion connect in the outside end of connecting portion, and pass dodge the groove extremely the outside of insulating pedestal, it is a pair of to extrude inwards pulling portion can drive the hasp subassembly the spring bolt moves in opposite directions, makes the spring bolt retract in the insulating pedestal.

Preferably, the connecting portion and the limiting connecting plate are integrally formed, a gap is formed between the pulling portion and two side end faces of the insulating base, and the gap is not smaller than a movement stroke of the lock tongue retracting to the insulating base.

Preferably, the limiting connecting plate is provided with a connecting hole, the connecting part is rotatably inserted into the connecting hole, the connecting part is provided with a first limiting bulge, and the first limiting bulge is located on the outer side of the limiting connecting plate.

Preferably, the connecting part is further provided with a second limiting protrusion, and the second limiting protrusion is located on the inner side of the limiting connecting plate.

The utility model also provides a connector subassembly, including plate end connector and foretell end connector.

Preferably, the plate end connector comprises an insulating shell and a second electric connection part arranged in the insulating shell, and lock holes are formed in two sides of the insulating shell;

when the wire end connector is plugged into the plate end connector, the second electric connecting part is electrically connected to the first electric connecting part, and the bolt can be ejected outwards from the insulator and inserted into the lock hole.

The utility model relates to a pair of line end connector, its beneficial effect lies in: the overall height of the product can be reduced, the connector structure is suitable for low connector structures, gaps and tolerance between the lock catch assembly and the matching end are small, contact of product terminals is small, and the reliability of the lock catch structure is good.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 shows a schematic structural diagram of a line end connector according to an exemplary embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an internal structure of an installation space in a cable end connector according to an exemplary embodiment of the present invention;

fig. 3 shows an exploded schematic view of a wire end connector of an exemplary embodiment of the present invention;

fig. 4 illustrates a schematic diagram of a plate end connector in another exemplary connector assembly of the present invention;

description of reference numerals:

1. the device comprises an insulator 11, an insulating base body 111, a locking groove 112, a fixing groove 113 and a V-shaped groove; 12. a housing 121, a chute; 2. a first electrical connection portion; 3. a cable; 4. the locking mechanism comprises a locking buckle assembly 41, a locking bolt 42, a first connecting column 43, an elastic element 44, a fixing piece 45, a limiting connecting plate 46, a connecting hole 47, a second connecting column 5, a pulling part 51, a first limiting bulge 52, a second limiting bulge 53 and a pull arm; 6. a plate end connector; 61. an insulating housing; 62. a second electrical connection portion; 63. and (6) locking the hole.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In order to solve the problems in the prior art, the utility model provides a wire end connector, which comprises an insulator, a first electric connection part, a wire, a lock catch component and a pulling component; the first electric connection part is arranged in the insulator, and the cable is electrically connected with the first electric connection part; the lock catch assembly comprises lock tongues arranged at two ends of the insulator; the pulling part comprises a pair of pulling arms, each pulling arm is connected to the outer side of the lock catch assembly, and the lock tongue can be outwards ejected from the insulator and retracted under the action of the pair of pulling arms.

The utility model relates to a line end connector can reduce the whole height of product, is applicable to low connector structure, and the hasp subassembly is less with the clearance and the tolerance of matching the end, and the contact formation of product terminal is little, hasp structural reliability is good.

After the cable is electrically connected with the first electric connection part through welding, the inner die is injected at the connection part to form a whole, and the first electric connection part can be a terminal or a circuit board.

Preferably, the locking assembly further comprises at least one elastic connection assembly and at least one fixing assembly, the fixing assemblies are fixedly connected in the insulator, and each fixing assembly is connected to a pair of elastic connection assemblies;

the fixing component comprises a pair of fixing pieces, and one ends of the pair of fixing pieces, which are far away from each other, are respectively connected with an elastic connecting component.

Preferably, the fixing assembly comprises a fixing member, the fixing member is fixedly arranged in the insulator, and two ends of the fixing member are respectively connected to the pair of elastic connecting assemblies.

Preferably, the elastic connection assembly comprises a first connecting column and an elastic element, the first connecting column is arranged on the inner side of the bolt, and the elastic element is connected between the first connecting column and the fixing piece.

Optionally, the elastic element is a spring, a spring plate or other parts with elastic function. The spring connecting assembly enables the bolt to be ejected or retracted. The bolt can also be directly connected with the first connecting column, and the first connecting column extends out under the elastic force of the elastic element or retracts under the action of pulling the pair of pull arms so as to drive the bolt to pop out or retract.

Preferably, the fixing piece is provided with a second connecting column, and two ends of the elastic element are respectively connected to the first connecting column and the second connecting column.

The quantity of elastic connection assembly and the quantity of fixed subassembly can according to actual demand, for example, can set up two pairs of elastic connection assembly and a pair of fixed subassembly, every fixed subassembly is connected between a pair of elastic connection assembly, and two pairs of elastic connection assembly symmetries set up in the insulator both ends, and connect respectively in the spring bolt that is located this end.

Preferably, the lock catch assembly further comprises a pair of limiting connecting plates, and the first connecting column and the lock tongue are respectively arranged on two opposite side surfaces of the limiting connecting plates.

The pair of limiting connecting plates are symmetrically arranged at two ends of the insulator, the lock catch assembly is provided with at least one pair of lock tongues, each pair of lock tongues is respectively arranged at two ends of the insulator, each lock tongue positioned at one end of the insulator is arranged on one side surface of the limiting connecting plate positioned at the end, and the first connecting column of the elastic connecting assembly positioned at the end of the insulator is arranged on the other side surface of the limiting connecting plate.

The spring bolt is connected in the limiting connection board outside, and first spliced pole is connected in limiting connection board inboard, and limiting connection board sets up inside the insulator for connect spring bolt and first spliced pole.

Preferably, spacing connecting plate and the spring bolt and the first connecting post integrated into one piece of locating on it.

Preferably, the limiting connecting plate, the lock tongue arranged on the limiting connecting plate and the first connecting column are assembled and connected in a threaded, adhesive, welding or press-fitting mode and the like.

Preferably, the insulator includes insulating pedestal and shell, and the shell is located insulating pedestal top to and form the installation space between the insulating pedestal, the hasp subassembly is located in the installation space.

Preferably, the top of the insulating base is provided with a plurality of positioning columns, the shell is provided with a plurality of penetrating positioning holes, and the insulating base and the shell are connected with the positioning holes in a hot-pressing and inserting mode through the positioning columns, so that the shell can be conveniently and quickly installed. The insulating base body and the shell can also be connected through bolts or buckles.

Preferably, the insulating base body is internally provided with a fixing groove, and the fixing piece is arranged in the fixing groove. The fixing piece can be T-shaped, I-shaped, cross-shaped, L-shaped or other special shapes which are convenient for clamping, and the fixed groove is matched with the fixing piece in shape so that the fixing piece can be clamped in the fixed groove.

Preferably, the insulating base comprises two side end faces, a front end face, a rear end face, a top face and a bottom face, and the lock tongue is arranged on the two side end faces of the insulating base;

two side end faces of the insulating base body are respectively provided with a lock tongue hole, and a lock tongue can pop out of the lock tongue hole or be withdrawn from the lock tongue hole;

the top surface of the insulating base body is provided with a latch groove which is concave inwards, the shell is buckled in the latch groove to form an installation space, and the fixed groove is arranged in the latch groove. The lock tongue hole is positioned on the groove wall of the lock catch groove, and the top surface of the shell is not higher than that of the insulating base body so as to reduce the height of the product.

The tank bottom in hasp groove is equipped with a plurality of bosss, and a plurality of bosss concatenation forms the fixed slot for place a mounting, and avoid the mounting to be removed. The T-shaped fixing groove comprises a middle boss and two pairs of strip-shaped bosses, wherein the two pairs of strip-shaped bosses are respectively positioned at two ends of the middle boss, a strip-shaped gap is formed between each pair of strip-shaped bosses, and the strip-shaped gap and the middle boss form the T-shaped fixing groove.

Preferably, the both sides of shell are equipped with respectively and dodge the groove, and spacing connecting plate is located and dodges the inslot, and when the spring bolt withdrawal or when popping out, spacing connecting plate can be followed and dodged the groove and slided between the inner wall of insulating pedestal and the tank bottom of dodging the groove.

Preferably, the single arm-drag includes interconnect's connecting portion and pulling portion, and connecting portion connect in the outside of spacing connecting plate, and pulling portion connects in the outside end of connecting portion, and passes and dodge the outside of groove to insulating pedestal, inwards extrudees a pair of pulling portion and can drive the spring bolt motion in opposite directions that is located insulating pedestal both ends, makes the spring bolt retract in the insulating pedestal. When the bolt retracts into the insulating seat body, the bolt is still positioned in the bolt hole so as to avoid disengaging the bolt hole and being difficult to eject.

Preferably, the connecting portion and the limiting connecting plate are integrally formed, a gap is formed between the pulling portion and two side end faces of the insulating base body, and the gap is not smaller than the movement stroke of the bolt retracting to the insulating base body.

The first limiting bulges are used for driving the limiting connecting plates to move, when the pair of pull arms are extruded, the pair of first limiting bulges move oppositely to drive the limiting connecting plates to move oppositely, so that the lock tongues at the two ends of the insulating base body are driven to move oppositely to be retracted into the insulating base body, and when the pair of pull arms are loosened, the lock tongues automatically pop out by the elasticity of the elastic elements to stretch out of the insulating base body.

Connecting portion rotate to be connected in spacing connecting plate, when need not unblock, the single arm-drag can rotate to pulling portion orientation grafting direction to reduce occupation to installation space, when needing the unblock, can rotate the single arm-drag to convenient to use's direction and angle, extrude a pair of single arm-drag can drive spacing connecting plate and move in opposite directions so that the spring bolt retracts.

The connecting hole can be arranged in the middle of the limiting connecting plate or at the bottom of the limiting connecting plate, and when the connecting hole is located at the bottom of the limiting connecting plate, the connecting hole is communicated with the bottom surface of the limiting connecting plate, so that the pull arm can be conveniently extruded into the connecting hole from the bottom of the connecting hole for installation.

The connecting part and the first limit bulge and the second limit bulge can be connected or integrally formed through threads and welding respectively.

Preferably, the both sides of insulating pedestal still are equipped with V type groove, are located the connecting portion in the limiting connection board outside and can slide in V type groove, and the quantity of spring bolt can set up according to the demand.

when the line end connector is plugged into the board end connector, the second electric connection part is electrically connected with the first electric connection part, and the bolt can be outwards popped out from the insulator and inserted into the lock hole.

The quantity of lockhole and the quantity one-to-one of spring bolt, insulating housing are the cell type structure, and the end connector is located insulating housing after pegging graft with the end connector of board.

Preferably, the insulating housing is provided with a board end avoiding groove, the board end avoiding groove is opposite to the V-shaped groove, and the pulling portion penetrates through the board end avoiding groove to the outside of the insulating housing.

Preferably, the second electrical connection portion is a terminal.

Example 1

As shown in fig. 1 to 3, the present invention provides a wire end connector, which comprises an insulator 1, a first electrical connection part 2, a cable 3, a locking assembly 4 and a pulling member 5; the first electric connecting part 2 is arranged in the insulator 1, and the cable 3 is electrically connected to the first electric connecting part 2; the latch assembly 4 includes latch bolts 41 provided at both ends of the insulator 1; the pulling member 5 includes a pair of pulling arms 53, each pulling arm 53 is connected to the outside of the latch assembly 4, and the latch tongue 41 can be outwardly ejected from the insulator 1 and retracted by the pair of pulling arms 53.

After the cable 3 is electrically connected with the first electric connection part 2 through welding, an inner mold is injected at the connection part to form a whole, and then the whole is assembled in the insulator 1, wherein the first electric connection part is a terminal.

In this embodiment, the locking assembly 4 further includes at least one elastic connection assembly and at least one fixing assembly, the fixing assembly is connected in the insulator, and each fixing assembly is connected to a pair of elastic connection assemblies; the fixing assembly includes a pair of fixing members 44, and the ends of the pair of fixing members 44 facing away from each other are connected to a resilient connecting assembly, respectively.

The elastic connection assembly includes a first connection post 42 and an elastic element 43, the first connection post 42 is disposed at the inner side of the latch tongue 41, and the elastic element 43 is connected between the first connection post 42 and the fixing member 44. The elastic element 43 is a spring. The fixing member 44 is provided with a second connecting column 47, and two ends of the elastic element 43 are respectively connected to the first connecting column 42 and the second connecting column 47.

In this embodiment, two pairs of elastic connection assemblies and a pair of fixing assemblies are provided, each fixing assembly is connected between one pair of elastic connection assemblies, and the two pairs of elastic connection assemblies are symmetrically arranged at two ends of the insulator and are respectively connected to the latch bolts 41 at the two ends. The latch tongue 41 is allowed to be ejected or retracted by the elastic connection assembly. The first connecting column 42 is extended by the elastic force of the elastic element 43 or retracted by a pair of pull arms 53 to drive the latch tongue 41 to pop up or retract.

In the present embodiment, the locking assembly 4 further includes a pair of limiting connection plates 45, and the first connection post 42 and the locking tongue 41 are respectively disposed on two opposite sides of the limiting connection plates 45.

The pair of limiting connecting plates 45 are symmetrically arranged at two ends of the insulator 1, the lock catch assembly 4 is provided with at least one pair of lock tongues 41, each pair of lock tongues 41 is respectively arranged at two ends of the insulator 1, each lock tongue 41 positioned at one end of the insulator 1 is arranged at one side surface of the limiting connecting plate 45 positioned at the end, and the first connecting column 42 of the elastic connecting assembly positioned at the end of the insulator 1 is arranged at the other side surface of the limiting connecting plate 45.

The spring bolt 41 is connected in the outside of limit connection board 45, and first spliced pole 42 is connected in limit connection board 45 inboard, and limit connection board 45 sets up inside insulator 1 for connect spring bolt 41 and first spliced pole 42. The limit connecting plate 45 is integrally formed with the bolt 41 and the first connecting post 42.

In the present embodiment, the insulator 1 includes an insulating housing 11 and a shell 12, the shell 12 is disposed on the top of the insulating housing 11 and forms a mounting space with the insulating housing 11, and the locking assembly 4 is disposed in the mounting space.

The top of the insulating base 11 is provided with a plurality of positioning columns, the housing 12 is provided with a plurality of positioning holes, and the insulating base 11 and the housing 12 are connected with the positioning holes through the positioning columns in a hot-pressing manner. The insulating base 11 is provided with a fixing groove 112 therein, and the fixing member 44 is disposed in the fixing groove 112. In this embodiment, the fixing member is T-shaped, and the fixing groove 112 is also T-shaped to fit the shape of the fixing member 44.

The insulating base body 11 comprises two side end faces, a front end face, a rear end face, a top face and a bottom face, and the lock tongue is arranged on the two side end faces of the insulating base body 11; two side end faces of the insulating base body 11 are respectively provided with a lock tongue hole, and the lock tongue 41 can pop out of the lock tongue hole or be retracted from the lock tongue hole; the top of the insulating base 11 is provided with a latch groove 111 recessed inwards, the housing 12 is fastened in the latch groove 111 to form an installation space, and the fixing groove 112 is disposed in the latch groove 111. The latch hole is located on the slot wall of the locking slot 111, and the top surface of the housing 12 is not higher than the top surface of the insulating base 11.

The bottom of the locking groove 111 is provided with a plurality of bosses which are spliced to form a fixing groove 112 for placing a fixing piece 44.

Avoidance grooves 121 are respectively formed in two sides of the shell 12, and the limiting connecting plate 45 is arranged in the avoidance grooves 121.

The draw arm 53 includes the connecting portion and the pulling portion of interconnect, and connecting portion connect in the outside of spacing connecting plate 45, and the pulling portion is connected in the outside end of connecting portion, and passes and dodge groove 121 to the outside of insulating pedestal 11, inwards extrudees a pair of pulling portions and can drive the spring bolt 41 that is located insulating pedestal 11 both ends and move in opposite directions, makes spring bolt 41 retract in insulating pedestal 11. When the latch 41 retracts into the insulating base 11, the latch 41 is still located in the latch hole so as not to disengage from the latch hole and be difficult to eject.

Preferably, the limiting connecting plate 45 is provided with a connecting hole 46, the connecting part is rotatably inserted into the connecting hole 46, the end of the connecting part is provided with a first limiting protrusion 51, and the first limiting protrusion 51 is located on the outer side of the limiting connecting plate 45.

The first limiting protrusions 51 are used for driving the limiting connection plates 45 to move, when the pair of pull arms 53 are squeezed, the pair of first limiting protrusions 51 move in opposite directions to drive the limiting connection plates 45 to move in opposite directions, so that the lock tongues 41 at two ends of the insulating base 11 are driven to move in opposite directions to retract into the insulating base 11, and when the pair of pull arms 53 are loosened, the lock tongues 41 are automatically popped out by the elasticity of the elastic elements 43 to extend out of the insulating base 11.

Connecting portion rotate to be connected in limit connection 45, and when need not unblock, single arm-drag 53 can rotate to pulling portion orientation grafting direction, when needing the unblock, can rotate single arm-drag 53 to convenient to use's direction and angle, extrudees a pair of pulling portion and can drive limit connection 45 and move in opposite directions so that the spring bolt retracts.

In the present embodiment, the connection hole 46 is located at the bottom of the limit connection plate 45, and the connection hole 46 communicates with the bottom surface of the limit connection plate 45.

The end of the connecting part is also provided with a second limiting bulge 52, and the second limiting bulge 52 is positioned on the inner side of the limiting connecting plate 45.

The connecting portion is integrally formed with the first and

second stopper projections

51 and 52.

In this embodiment, V-shaped grooves 113 are further disposed on two sides of the insulating base 11, and the connecting portion located outside the limiting connecting plate 45 can slide in the V-shaped grooves 113.

Example 2

The line end connector according to embodiment 2 is different from embodiment 1 in that,

in this embodiment, the fixing assembly includes a fixing member 44, the fixing member 44 is fixed in the insulator 1, and two ends of the fixing member 44 are respectively connected to the pair of elastic connection assemblies.

Example 3

The line end connector according to example 3 differs from example 1 in that

In this embodiment, the connecting portion and the limit connecting plate 45 are integrally formed, and a gap is formed between the pulling portion and two side end faces of the insulating base 11, and the gap is not less than a movement stroke of the latch 41 retracting to the insulating base 11.

Example 4

As shown in fig. 4, the present invention provides a connector assembly comprising a plate-end connector 6 and the wire-end connector of example 1.

In the present embodiment, the plate end connector 6 includes an insulating housing 61 and a second electrical connection portion 62 disposed in the insulating housing 61, and two sides of the insulating housing 61 are provided with locking holes 63;

when the wire end connector is plugged into the plate end connector 6, the second electrical connection part 62 is electrically connected to the first electrical connection part 2, and the latch 41 can be ejected out of the insulator 1 and inserted into the insertion hole 63.

The number of lockholes 63 and the number of spring bolts 41 one-to-one, insulating housing 61 is the cell type structure, and the line end connector is located insulating housing 61 after the end connector is pegged graft with board end connector 6.

The insulating housing 61 is provided with a plate end avoiding groove, the plate end avoiding groove is opposite to the V-shaped groove 113, and the pulling portion penetrates through the plate end avoiding groove to the outside of the insulating housing 61.

The second electrical connection portion 62 is a terminal.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A wire end connector characterized by comprising an insulator (1), a first electrical connection portion (2), a cable (3), a latch assembly (4) and a pulling member (5); the first electric connection part (2) is arranged in the insulator (1), and the cable (3) is electrically connected to the first electric connection part (2); the lock catch component (4) comprises lock tongues (41) arranged at two ends of the insulator (1); the pulling part (5) comprises a pair of pulling arms (53), each pulling arm (53) is connected to the outer side of the lock catch assembly (4), and the lock tongue (41) can be ejected outwards from the insulator (1) and retracted under the action of the pair of pulling arms (53).

2. The wire end connector according to claim 1, characterized in that the locking assembly (4) further comprises at least one elastic connection assembly and at least one fixing assembly, the fixing assemblies being fixedly connected within the insulator (1), each fixing assembly being connected to a pair of the elastic connection assemblies;

the fixing assembly comprises a pair of fixing pieces (44), and one ends of the pair of fixing pieces (44) which are far away from each other are respectively connected with the elastic connecting assembly.

3. The terminal connector according to claim 2, characterized in that the elastic connection assembly comprises a first connection post (42) and an elastic element (43), the first connection post (42) being provided on the inner side of the locking tongue (41), the elastic element (43) being connected between the first connection post (42) and the fixing element (44).

4. The terminal connector according to claim 3, wherein the fixing member (44) is provided with a second connecting post (47), and both ends of the elastic member (43) are connected to the first connecting post (42) and the second connecting post (47), respectively.

5. The terminal connector according to claim 3, wherein the locking assembly (4) further comprises a pair of limit connection plates (45), the first connection post (42) and the locking tongue (41) being respectively provided on two opposite sides of the limit connection plates (45).

6. The wire end connector according to claim 5, wherein the insulator (1) comprises an insulating seat (11) and a housing (12), the housing (12) is disposed on the top of the insulating seat (11) and forms a mounting space with the insulating seat (11), and the locking assembly (4) is disposed in the mounting space.

7. The terminal connector according to claim 6, wherein a fixing groove (112) is formed in the insulating housing (11), and the fixing member (44) is disposed in the fixing groove (112).

8. The wire end connector according to claim 7, wherein the insulating base (11) comprises two side end faces, a front end face, a rear end face, a top face and a bottom face, and the locking tongue (41) is arranged on the two side end faces of the insulating base (11);

two side end faces of the insulating base body (11) are respectively provided with a lock tongue hole, and the lock tongue (41) can be popped out of the lock tongue hole or withdrawn from the lock tongue hole;

the top surface of the insulating base body (11) is provided with a latch groove (111) which is concave inwards, the shell (12) is buckled in the latch groove (111) to form the installation space, and the fixing groove (112) is arranged in the latch groove (111).

9. The terminal connector according to claim 8, wherein avoidance grooves (121) are respectively formed on two sides of the housing (12), and the limiting connection plate (45) is arranged in the avoidance grooves (121).

10. The wire end connector according to claim 9, wherein the pulling arm (53) comprises a connecting portion and a pulling portion connected to each other, the connecting portion is connected to an outer side of the limiting connecting plate (45), the pulling portion is connected to an outer side end of the connecting portion and passes through the avoiding groove (121) to an outer portion of the insulating seat (11), and pressing the pair of pulling portions inwards can drive the locking tongues (41) of the locking buckle assembly (4) to move towards each other, so that the locking tongues (41) are retracted into the insulating seat (11).

11. The wire end connector according to claim 10, wherein the connecting portion is integrally formed with the limit connecting plate (45), and a gap is formed between the pulling portion and two side end faces of the insulating base (11), and the gap is not less than a movement stroke of the lock tongue (41) retracting to the insulating base (11).

12. The wire end connector according to claim 10, wherein the limiting connection plate (45) is provided with a connection hole (46), the connection part is rotatably inserted into the connection hole (46), the connection part is provided with a first limiting protrusion (51), and the first limiting protrusion (51) is located on the outer side of the limiting connection plate (45).

13. The wire end connector according to claim 12, wherein a second limit projection (52) is further provided on the connecting portion, and the second limit projection (52) is located on the inner side of the limit connecting plate (45).

14. A connector assembly, comprising a plate end connector (6) and a wire end connector according to any one of claims 1-13.

15. The connector assembly according to claim 14, wherein the plate end connector (6) comprises an insulating housing (61) and a second electrical connection portion (62) arranged in the insulating housing (61), and lock holes (63) are arranged on two sides of the insulating housing (61);

when the wire end connector is plugged into the plate end connector (6), the second electric connecting part (62) is electrically connected to the first electric connecting part (2), and the bolt (41) can be ejected outwards from the insulator (1) and inserted into the lock hole (63).