CN112217027B

CN112217027B - A high current connector capable of locking connection

Info

Publication number: CN112217027B
Application number: CN202011157988.4A
Authority: CN
Inventors: 苏洪平; 刘允昱; 邹浩然
Original assignee: Bizconn International Corp
Current assignee: Bizconn International Corp
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2025-07-11
Anticipated expiration: 2040-10-26
Also published as: CN112217027A

Abstract

The present invention discloses a high-current connector that can be locked and connected, including a line end module and a board end module for matching use, the line end module and the board end module are respectively connected with a line end terminal and a board end terminal, the line end module and the board end module are both provided with a lock mounting groove, a terminal lock is installed in the lock mounting groove, the line end terminal is detachably connected to the line end module through a terminal lock provided inside the line end module, and the board end terminal is detachably connected to the board end module through a terminal lock provided inside the board end module; a knob switch is connected to the side of the line end module, a locking hook is provided on the knob switch, and a locking column that matches the knob switch is provided on the side of the board end module. This type of high-current connector that can be locked and connected can replace or replace terminals, which helps to improve the economic efficiency of product use, reduce production and maintenance costs, and has the advantages of convenient locking and opening, simple operation, long service life, good safety performance, etc.

Description

High-current connector capable of being locked and connected

Technical Field

The present invention relates to an electrical connector, and more particularly to a lockable high current connector.

Background

An electrical connector is a commonly used electrical connection component.

The prior connector is structurally and generally fixedly installed in the connector, and after the terminal is installed, the connector is not pulled out intentionally. In the process of assembling, producing an electric connector or using and maintaining in the later period, when the terminal assembly is wrong or part of the terminal is damaged, the connector needs to be replaced integrally, the replacement difficulty and the cost are high, and the connector is commonly connected with an electric wire, so that the cost and the maintenance difficulty are further improved, and the economical efficiency is influenced.

In addition, in order to bear larger current, the sectional area of the current terminal of the existing high-current connector is larger and larger, meanwhile, in order to ensure the connection reliability and stability, the contact impedance is reduced, the heating problem of the high current passing through the connector is solved, and the design of the friction retaining force of the male and female terminals after the male and female terminals are inserted is larger and larger. For the high-current connector, the existing opening mode of directly pulling out the connector shell and the cable by hand is difficult to separate the connector, and the defects of inconvenient use and difficult opening exist in the use process; the connector opening mode of direct pulling-out can lead the terminal and the wire to be directly acted on the terminal and the wire, so that the original connection displacement or loosening of the terminal and the wire can be caused, the pulling-out force can be directly conducted to the installed substrate, the electrical equipment such as the substrate and the like can be possibly damaged, the connector is easily damaged, the service life of the connector is influenced, and even potential safety hazards exist.

Accordingly, the present invention is directed to a new solution to solve the existing technical drawbacks.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a high-current connector capable of being locked and connected, which solves the technical defects of the prior art that the terminal is not detachably replaced, the connector is high in replacement or maintenance cost, difficult to connect and open, inconvenient to use, easy to damage, short in service life, potential safety hazards exist and the like.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a but locking connection's heavy current connector, includes supporting line terminal module and the board end module that uses, line terminal module, board end module are connected with line terminal, board end terminal respectively, all be provided with the hasp mounting groove on line terminal module and the board end module, install the terminal hasp in the hasp mounting groove, line terminal passes through the terminal hasp that line terminal module inside set up and can dismantle with line terminal module and be connected, board end terminal passes through the terminal hasp that board end module inside set up and can dismantle with board end module and be connected.

As the improvement of above-mentioned technical scheme, all be provided with the terminal mounting hole on line end module and the board end module, the hasp mounting groove includes horizontal spout and vertical holding tank, vertical holding tank communicates perpendicularly with horizontal spout and forms a T shape mounting groove, horizontal spout lateral part with terminal mounting hole intercommunication, the terminal hasp includes hasp slide and the hasp riser of being connected perpendicularly with the hasp slide, the hasp slide is installed in the horizontal spout and can slide in horizontal spout, the hasp riser holds in vertical holding tank, inwards extend in the hasp riser has the resilience arm, the resilience arm tip supports to the bottom of vertical holding tank, hasp slide both sides are provided with the hasp draw-in table, all have terminal locking concave ring on line end terminal and the board end terminal, the hasp draw-in table can stretch into in the terminal mounting hole from horizontal spout lateral part and on the terminal locking concave ring of chucking line end terminal or board end terminal and realize the dismantlement connection of terminal and line end module or realization board end terminal and board end module.

As a further improvement of the technical scheme, the terminal lock catch is provided with a first positioning boss at the bottom of the lock catch sliding plate, the upper end part of the lock catch vertical plate is provided with a second positioning boss, a first positioning concave position and a second positioning concave position are arranged in the lock catch mounting groove, the first positioning boss and the second positioning boss are correspondingly clamped into the first positioning concave position and the second positioning concave position, the sizes of the first positioning concave position and the second positioning concave position are respectively larger than those of the first positioning boss and the second positioning boss, the first positioning boss can move in the first positioning concave position, and the second positioning boss can move in the second positioning concave position.

As a further improvement of the above technical solution, the line terminal and the board terminal each include a first terminal convex ring and a second terminal convex ring, the terminal locking concave ring is located between the first terminal convex ring and the second terminal convex ring, the latch clamping platform is provided with a clamping platform guiding inclined plane at the side part thereof for facilitating the line terminal or the board terminal to be clamped in place, and the side wall of the latch clamping platform is an arc side wall;

As a further improvement of the technical scheme, the terminal lock catch is an integrally injection molded plastic lock catch, the line end terminal is fixedly connected with a line end wire, and the board end terminal is fixedly connected with a board end wire.

According to the technical scheme, the rotary switch is connected to the side part of the line end module, the locking hook is arranged on the rotary switch, the locking column matched with the rotary switch is arranged on the side part of the board end module, the locking hook can be hooked on the locking column and mutually locks the line end module and the board end module in the rotation process of the rotary switch, the cam part is arranged on the rotary switch, and the cam part can press the locking column and force the line end module and the board end module to be mutually separated by means of the interaction force of the cam part and the locking column in the rotation process of the rotary switch.

As a further improvement of the above technical solution, the locking post has a locking post plane, the locking post plane and the end face of the plate end module are located on the same plane, and the cam part can be pressed on the locking post plane.

As a further improvement of the technical scheme, the side part of the line end module is provided with a fixed column, the knob switch is provided with a fixed hole matched with the fixed column, and the knob switch is arranged on the fixed column through the fixed hole and can rotate around the fixed column;

As a further improvement of the technical scheme, the outer end part of the fixed column is provided with a fixed column cover cap, and the fixed column cover cap is used for limiting the knob switch on the rotating part of the fixed column;

As a further improvement of the technical scheme, the fixing column cap comprises a cap part and a connecting part, the periphery of the outer opening part of the fixing hole of the knob switch is provided with a fixing hole sinking table, the cap part of the fixing column cap is installed at the fixing hole sinking table, the outer end part of the fixing column is provided with a cap connecting groove, and the connecting part of the fixing column cap is fixedly connected in the cap connecting groove.

As a further improvement of the technical scheme, the knob switch is provided with the clamping hook arm, the locking clamping hook is positioned at the outer end of the clamping hook arm, the section of the clamping hook arm is gradually reduced in the process of transitionally extending from the clamping hook arm to the locking clamping hook, the locking clamping hook forms a clamping hook notch on the knob switch, and the size of the clamping hook notch is matched with that of the locking column.

As a further improvement of the technical scheme, the knob switch is further provided with a first knob force arm and a second knob force arm, the first knob force arm forms a first knob force notch on the knob switch, the second knob force arm forms a second knob force notch on the knob switch, and a third knob force notch is formed between the first knob force arm and the second knob force arm;

As a further improvement of the technical scheme, a rotary limiting convex column is arranged on the inner side of the knob switch, a rotary limiting concave position matched with the rotary limiting convex column is arranged on the side portion of the line end module, and the rotary limiting convex column extends into the rotary limiting concave position and is limited by the side wall of the rotary limiting concave position.

The invention has the beneficial effects that the locking connection high-current connector provided by the invention has the advantages that the terminal end terminal and the plate end terminal are correspondingly and detachably locked on the terminal end module and the plate end module through the terminal lock catch, and when the terminal is assembled in error or the terminal needs to be replaced, the terminal end terminal and the plate end terminal can be pulled out through the terminal lock catch, so that the terminal is convenient to replace, the production and use cost can be saved, and the later maintenance of the connector is convenient;

In addition, the high-current connector capable of being locked and connected can be locked rapidly through the knob switch and the locking column, and the wire end module and the plate end module can be separated rapidly through the cam part, so that the high-current connector has the characteristic of convenience in use. Meanwhile, because the acting force of connection and the acting force of separation directly act on the terminal module and the body of the board end module, the connector terminal and the circuit board inside the connector terminal cannot be excessively and negatively affected, the problems of loosening, falling off, circuit board damage and the like of the connector during separation can be avoided, the connector is effectively protected, and the service life of the connector is prolonged.

In conclusion, the high-current connector capable of being locked and connected solves the technical defects that in the prior art, terminals are not detachably replaced, the connector is high in replacement or maintenance cost, connection and opening are difficult, use is inconvenient, damage is easy to occur, the service life is short, potential safety hazards exist and the like.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a structural exploded view of the present invention;

FIG. 2 is a schematic cut-away view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is another schematic cross-sectional view of the present invention;

FIG. 5 is a schematic view of the structure of the line end module and the board end module in the connection state of the present invention;

FIG. 6 is an enlarged view of a portion of B in FIG. 5;

FIG. 7 is a schematic view of a terminal lock of the present invention;

FIG. 8 is a schematic view of another angle of the terminal lock of the present invention;

FIG. 9 is a schematic diagram showing the structure of the rotary switch, the fixed column cap and the wire end module in a split manner;

FIG. 10 is a schematic view of the structure of the rotary switch according to the present invention;

FIG. 11 is a schematic view of another angle of the rotary switch according to the present invention;

fig. 12 is a schematic structural view of the fixing post cap of the present invention.

Detailed Description

The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of not contradicting and conflicting, and refer to figures 1-12.

The utility model provides a but locking connection's heavy current connector, includes supporting line terminal module 1 and the board end module 2 that use, line terminal module 1, board end module 2 are connected with line terminal 51, board end terminal 52 respectively, all be provided with hasp mounting groove 7 on line terminal module 1 and the board end module 2, install terminal hasp 8 in the hasp mounting groove 7, line terminal 51 can dismantle with line terminal module 1 through terminal hasp 8 that line terminal module 1 set up, board end terminal 52 can dismantle with board end module 2 through terminal hasp 8 that board end module 2 set up inside is connected; the terminal module 1 and the board end module 2 are respectively provided with a terminal mounting hole 6, the lock catch mounting groove 7 comprises a horizontal chute 71 and a vertical containing groove 72, the vertical containing groove 72 is vertically communicated with the horizontal chute 71 and forms a T-shaped mounting groove, the side part of the horizontal chute 71 is communicated with the terminal mounting hole 6, the terminal lock catch 8 comprises a lock catch slide plate 81 and a lock catch vertical plate 82 vertically connected with the lock catch slide plate 81, the lock catch slide plate 81 is arranged in the horizontal chute 71 and can slide in the horizontal chute 71, the lock catch vertical plate 82 is accommodated in the vertical containing groove 72, a rebound arm 83 inwards extends from the inner side of the lock catch vertical plate 82, the end part of the rebound arm 83 is propped against the bottom of the vertical containing groove 72, lock catch clamping blocks 84 are arranged on two sides of the lock catch slide plate 81, the terminal 51 and the board end terminal 52 are respectively provided with a terminal locking concave ring 501, the locking clamping table 84 can extend into the terminal mounting hole 6 from the side of the horizontal sliding groove 71 and be clamped on the terminal locking concave ring 501 of the wire end terminal 51 or the board end terminal 52, and the detachable connection of the wire end terminal 51 and the wire end module 1 or the detachable connection of the board end terminal 52 and the board end module 2 is realized.

Preferably, the bottom of the locking slide plate 81 of the terminal lock catch 8 is provided with a first positioning boss 85, the upper end of the locking vertical plate 82 is provided with a second positioning boss 86, the locking installation groove 7 is provided with a first positioning concave position 73 and a second positioning concave position 74, the first positioning boss 85 and the second positioning boss 86 are correspondingly clamped into the first positioning concave position 73 and the second positioning concave position 74, the sizes of the first positioning concave position 73 and the second positioning concave position 74 are respectively larger than those of the first positioning boss 85 and the second positioning boss 86, the first positioning boss 85 can move in the first positioning concave position 73, and the second positioning boss 86 can move in the second positioning concave position 74; the wire end terminal 51 and the board end terminal 52 both comprise a first terminal convex ring 502 and a second terminal convex ring 503, the terminal locking concave ring 501 is located between the first terminal convex ring 502 and the second terminal convex ring 503, the latch clamping table 84 is provided with a clamping table guiding inclined surface 87 at the side part thereof, which is convenient for clamping the wire end terminal 51 or the board end terminal 52 in place, and the side wall of the latch clamping table 84 is an arc side wall; in this embodiment, the terminal lock 8 is an integrally injection molded plastic lock, the wire end terminal 51 is fixedly connected with a wire end wire 511, and the plate end terminal 52 is fixedly connected with a plate end wire 521.

When the terminal lock catch 8 is correspondingly inserted into the lock catch mounting groove 7 on the terminal module 1 and the board end module 2, after the terminal end 51 and the board end terminal 52 are inserted into the corresponding terminal mounting holes 6, the end of the terminal end 51 or the board end terminal 52 firstly abuts against the clamping table guide inclined surface 87 on the terminal lock catch 8, a certain pressure is applied to the terminal lock catch 8 by the clamping table guide inclined surface 87, the rebound arm 83 on the terminal lock catch 8 is forced to deform, the whole terminal lock catch 8 integrally contracts inwards under the action of the pressure of the terminal, at this time, the terminal end 51 or the board end terminal 52 can be continuously inserted towards the terminal mounting hole 6 until the terminal locking concave ring 501 on the terminal lock catch 8 is inserted into the position corresponding to the locking clamping table 84 on the terminal lock catch 8, at this time, the terminal locking concave ring 501 on the terminal lock catch 8 is clamped into the terminal locking concave ring 501 on the terminal end 51 or the board end terminal 52 under the action of the elasticity of the rebound arm 83, and the terminal lock catch clamping table 84 on the terminal lock catch 8 is clamped into the terminal locking concave ring 501 on the terminal lock catch 8, so that the terminal end 51 is locked on the terminal end module 1 is locked, the terminal end 52 is locked on the terminal lock catch 2, and the connecting structure is stable.

When a certain terminal is wrongly plugged and needs to be replaced or a certain terminal is damaged and needs to be replaced, the terminal lock catch 8 is pressed hard, after overcoming the elastic force effect of the elastic force arm 83 of the terminal lock catch 8, the whole terminal lock catch 8 moves inwards for a distance until the lock catch clamping block 84 on the terminal lock catch 8 leaves the terminal locking concave ring 501 on the wire end terminal 51 or the plate end terminal 52, and at the moment, the terminal lock catch 8 releases the locking state of the wire end terminal 51 and the plate end terminal 52, so that the wire end terminal 51 and the plate end terminal 52 can be pulled out of the wire end module 1 and the plate end module 2 respectively, the terminal is convenient to replace and replace, the use cost and the maintenance cost are saved, and the economy is better.

Preferably, the side part of the line end module 1 is connected with a knob switch 3, the knob switch 3 is provided with a locking hook 31, the side part of the board end module 2 is provided with a locking column 21 matched with the knob switch 3, the locking hook 31 of the knob switch 3 can be hooked on the locking column 21 and mutually locks the line end module 1 and the board end module 2 in the rotation process, the knob switch 3 is provided with a cam part 32, and the cam part 32 of the knob switch 3 can press the locking column 21 and force the line end module 1 and the board end module 2 to be mutually separated by the interaction force of the cam part 32 and the locking column 21 in the rotation process.

When in actual use, after the line end module 1 and the board end module 2 are inserted in place, the knob switch 3 is rotated, so that the locking hook 31 on the knob switch 3 is hooked on the locking column 21 on the board end module 2, the line end module 1 and the board end module 2 are tightly locked together by the mutual locking force of the locking hook 31 and the locking column 21, a stable connection structure of the connector is formed, the connection stability of the connector can be improved, looseness caused by external force is avoided, and the reliability is higher. In practical implementation, the inner side surface of the locking hook 31 is set to be a tiny inclined surface with gradually reduced spacing, and in the process of slowly rotating the knob switch 3, the spacing between the line end module 1 and the board end module 2 is shrunk through the tiny inclined surface, so that the effect of improving the connection stability of the connector is achieved, and meanwhile, the canceling impedance can be reduced, and the heating value of the connector is reduced.

When the connector needs to be opened, the cam part 32 on the knob switch 3 presses the locking post 21 by reversely rotating the knob switch 3, and the plate end module 2 and the wire end module 1 are forced to be separated from each other by the interaction force between the posts 21 of the cam part 32 Yu Suojin. In the process of rotating the knob switch 3, the distance between the contact position of the outer edge of the cam part 32 and the locking column 21 and the rotation center of the knob switch 3 is gradually increased, so that the distance between the plate end module 2 and the wire end module 1 is gradually increased until the connection friction between the wire end module 1 and the plate end module 2 is reduced, and at the moment, the connector can be opened easily by manual work, so that the quick opening of the connector is realized, and the operation is convenient.

Preferably, the locking post 21 has a locking post plane 211, the locking post plane 211 is located on the same plane with the end surface of the plate end module 2, and the cam part 32 can press on the locking post plane 211.

Preferably, the side part of the line terminal module 1 is provided with a fixed column 11, the knob switch 3 is provided with a fixed hole 30 matched with the fixed column 11, and the knob switch is arranged on the fixed column 11 through the fixed hole 30 and can rotate around the fixed column 11;

the outer end part of the fixed column 11 is provided with a fixed column cap 4, and the fixed column cap 4 is used for limiting the knob switch 3 on the rotating part of the fixed column 11;

the fixed column cap 4 comprises a cap part 41 and a connecting part 42, the periphery of the outer opening part of the fixed hole 30 of the knob switch 3 is provided with a fixed hole sinking table 301, the cap part 41 of the fixed column cap 4 is arranged at the fixed hole sinking table 301, the outer end part of the fixed column 11 is provided with a cap connecting groove 111, and the connecting part 42 of the fixed column cap 4 is fixedly connected in the cap connecting groove 111.

Preferably, the knob switch 3 has a hook arm 33, the locking hook 31 is located at an outer end of the hook arm 33, a cross section of the hook arm 33 is gradually reduced in a process of transitionally extending from the hook arm 33 to the locking hook 31, the locking hook 31 forms a hook notch 34 on the knob switch 3, and a size of the hook notch 34 matches a size of the locking column 21.

Preferably, the knob switch 3 is further provided with a first knob arm 35 and a second knob arm 36, the first knob arm 35 forms a first knob force notch 371 on the knob switch 3, the second knob arm 36 forms a second knob force notch 372 on the knob switch 3, and a third knob force notch 373 is formed between the first knob arm 35 and the second knob arm 36;

Preferably, a rotation limiting convex column 38 is arranged on the inner side of the knob switch 3, a rotation limiting concave position 12 matched with the rotation limiting convex column 38 is arranged on the side portion of the line end module 1, and the rotation limiting convex column 38 extends into the rotation limiting concave position 12 and is limited by the side wall of the rotation limiting concave position 12.

While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and the equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims

1. A high current connector capable of being locked and connected, characterized in that: it comprises a line end module (1) and a board end module (2) for use together, the line end module (1) and the board end module (2) are respectively connected to a line end terminal (51) and a board end terminal (52), the line end module (1) and the board end module (2) are both provided with a lock buckle installation groove (7), a terminal lock buckle (8) is installed in the lock buckle installation groove (7), the line end terminal (51) is detachably connected to the line end module (1) through the terminal lock buckle (8) provided inside the line end module (1), and the board end terminal (52) is detachably connected to the board end module (2) through the terminal lock buckle (8) provided inside the board end module (2);

The line end module (1) and the board end module (2) are both provided with a terminal mounting hole (6); the locking mounting groove (7) comprises a horizontal slide groove (71) and a vertical receiving groove (72); the vertical receiving groove (72) is vertically connected to the horizontal slide groove (71) to form a T-shaped mounting groove; the side of the horizontal slide groove (71) is connected to the terminal mounting hole (6); the terminal locking buckle (8) comprises a locking buckle slide plate (81) and a locking buckle vertical plate (82) vertically connected to the locking buckle slide plate (81); the locking buckle slide plate (81) is installed in the horizontal slide groove (71) and can slide in the horizontal slide groove (71); the locking buckle vertical plate (82) is received in the vertical receiving groove (72); the A resilient arm (83) extends inward from the inner side of the locking vertical plate (82), and the end of the resilient arm (83) abuts against the bottom of the vertical receiving groove (72). Locking clamps (84) are arranged on both sides of the locking slide plate (81). The line terminal (51) and the board terminal (52) are both provided with a terminal locking concave ring (501). The locking clamps (84) can extend from the side of the horizontal slide groove (71) into the terminal mounting hole (6) and clamp onto the terminal locking concave ring (501) of the line terminal (51) or the board terminal (52) to realize the detachable connection between the line terminal (51) and the line terminal module (1) or realize the detachable connection between the board terminal (52) and the board terminal module (2);

The side of the line end module (1) is connected with a knob switch (3), and the knob switch (3) is provided with a locking hook (31); the side of the board end module (2) is provided with a locking column (21) that cooperates with the knob switch (3); when the knob switch (3) is rotated, the locking hook (31) can be hooked on the locking column (21) and the line end module (1) and the board end module (2) are locked together; the knob switch (3) is provided with a cam portion (32); when the knob switch (3) is rotated, the cam portion (32) can press the locking column (21) and force the line end module (1) and the board end module (2) to separate from each other by relying on the interaction force between the cam portion (32) and the locking column (21);

The wire end terminal (51) and the board end terminal (52) both include a first terminal convex ring (502) and a second terminal convex ring (503); the terminal locking concave ring (501) is located between the first terminal convex ring (502) and the second terminal convex ring (503); the locking card platform (84) is provided with a card platform guide inclined surface (87) on its side for facilitating the wire end terminal (51) or the board end terminal (52) to be locked into place; and the side wall of the locking card platform (84) is an arc-shaped side wall;

The terminal lock buckle (8) is an integrally injection-molded plastic lock buckle; the line end terminal (51) is fixedly connected to a line end wire (511); and the board end terminal (52) is fixedly connected to a board end wire (521).

2. A high current connector that can be locked and connected according to claim 1, characterized in that: the terminal lock (8) is provided with a first positioning boss (85) at the bottom of its lock slide (81), and the upper end of the lock vertical plate (82) is provided with a second positioning boss (86), and the lock mounting groove (7) is provided with a first positioning recess (73) and a second positioning recess (74), and the first positioning boss (85) and the second positioning boss (86) are correspondingly inserted into the first positioning recess (73) and the second positioning recess (74), and the sizes of the first positioning recess (73) and the second positioning recess (74) are respectively larger than the sizes of the first positioning boss (85) and the second positioning boss (86), and the first positioning boss (85) can move in the first positioning recess (73), and the second positioning boss (86) can move in the second positioning recess (74).

3. A high-current connector that can be locked and connected according to claim 1, characterized in that: the locking column (21) has a locking column plane (211), the locking column plane (211) and the end face of the board end module (2) are located in the same plane, and the cam portion (32) can be pressed on the locking column plane (211).

4. A lockable high current connector according to claim 1, characterized in that: a fixing column (11) is provided on the side of the line end module (1), a fixing hole (30) matching the fixing column (11) is provided on the knob switch (3), and the knob switch is installed on the fixing column (11) through its fixing hole (30) and can rotate around the fixing column (11);

The outer end of the fixing column (11) is provided with a fixing column cap (4), and the fixing column cap (4) is used to limit the knob switch (3) at the rotating part of the fixing column (11);

The fixing column cap (4) comprises a cap portion (41) and a connecting portion (42); the knob switch (3) is provided with a fixing hole sink (301) at the periphery of the outer opening of the fixing hole (30); the cap portion (41) of the fixing column cap (4) is mounted on the fixing hole sink (301); a cap connecting groove (111) is provided at the outer end of the fixing column (11); and the connecting portion (42) of the fixing column cap (4) is fixedly connected to the cap connecting groove (111).

5. A lockable high current connector according to claim 1, characterized in that: the knob switch (3) has a hook arm (33), the locking hook (31) is located at the outer end of the hook arm (33), and in the process of transitioning from the hook arm (33) to the locking hook (31), the cross-section of the hook arm (33) gradually decreases, and the locking hook (31) forms a hook recess (34) on the knob switch (3), and the size of the hook recess (34) matches the size of the locking column (21).

6. A lockable high current connector according to claim 1, characterized in that: the knob switch (3) is also provided with a first knob force arm (35) and a second knob force arm (36), the first knob force arm (35) forms a first knob force recess (371) on the knob switch (3), the second knob force arm (36) forms a second knob force recess (372) on the knob switch (3), and a third knob force recess (373) is formed between the first knob force arm (35) and the second knob force arm (36).

7. A lockable high-current connector according to claim 1, characterized in that: a rotation limit boss (38) is provided on the inner side of the knob switch (3), and a rotation limit recess (12) matching the rotation limit boss (38) is provided on the side of the line end module (1), and the rotation limit boss (38) extends into the rotation limit recess (12) and is limited by the side wall of the rotation limit recess (12).