CN217387653U

CN217387653U - Detachable terminal structure and charging seat thereof

Info

Publication number: CN217387653U
Application number: CN202220433501.9U
Authority: CN
Inventors: 朱一锋; 陈雷; 刘志朋; 张航; 朱靖洋; 李苏东; 茹婧; 解磊; 苏运运
Original assignee: Amphenol Changzhou Advanced Connector Co Ltd
Current assignee: Amphenol Changzhou Advanced Connector Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-09-06
Anticipated expiration: 2032-03-02

Abstract

The utility model relates to the technical field of connectors, in particular to a detachable terminal structure, which comprises an insulating cap, a terminal seat, a crown spring and a terminal, wherein the upper end of the terminal is provided with a threaded end and a crown spring installation cavity for installing the crown spring, the terminal is inserted into the terminal seat from the lower part, a boss at the lower end of the terminal seat is abutted against the lower end of the terminal seat, the threaded end extends out of the terminal seat, an anti-rotation structure is arranged between the terminal and the terminal seat, the insulating cap is provided with a middle hole and a threaded hole, the insulating cap is sleeved on the threaded end of the terminal seat through the threaded hole, a gap is reserved between the lower end surface of the insulating cap and the upper end surface of the terminal seat, the insulating cap is provided with a disassembly and assembly structure which needs to be rotated by a special tool, the crown spring is installed in the crown spring installation cavity and is positioned between the insulating cap and the terminal seat, the structure has simple production and assembly process, convenient terminal maintenance, high maintenance efficiency, saves working hours and part cost, and is simultaneously provided with a safe locking structure, avoiding misoperation and having high use safety factor.

Description

Detachable terminal structure and charging seat thereof

Technical Field

The utility model belongs to the technical field of the connector technique and specifically relates to a can dismantle terminal structure and charging seat thereof.

Background

The charging seat can be used to new energy automobile's charge-discharge, and in the use, inside user of service easily brought impurity into the charging seat terminal, caused long-term plug after charging, reed in the terminal produces certain wearing and tearing, influences the charging effect. Therefore, the reed needs to be replaced and maintained after the charging seat is used for a certain time, however, abrasion mainly occurs in the DC terminal, other parts can still be normally used, if the whole charging seat or the whole terminal is directly replaced, resource waste can be caused, the steps of whole dismounting are very complicated, the mounting speed is very slow, the maintenance efficiency is low, and the cost is high. The structure of the terminal structure part of the existing replaceable reed is complex, the assembly difficulty is high, and the use cost is also high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior problem, the utility model provides a detachable terminal structure and a charging seat thereof.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a can dismantle terminal structure, includes insulator cap, terminal seat, hat spring and terminal, the upper end of terminal is equipped with the screw thread end and is used for installing the hat spring installation cavity of hat spring, the terminal is cartridge in the terminal seat from the below, and the boss butt terminal seat's of its lower extreme, the screw thread end stretches out the terminal seat, be equipped with between terminal and the terminal seat and prevent changeing the structure, the insulator cap is equipped with mesopore and screw hole, the insulator cap passes through the screw hole suit on the screw thread end of terminal seat, and leaves the clearance between its lower terminal surface and the up end of terminal seat, be equipped with on the insulator cap and need make its pivoted dismouting structure with the help of specialized tool, the hat spring is installed in hat spring installation cavity, and is located between insulator cap and the terminal seat.

Specifically, with the above structure, the insulating cap can be unscrewed only by means of a special tool, a worn crown spring is taken out, a new crown spring is replaced, and then the insulating cap is mounted, so that the maintenance of the charging seat terminal can be completed. A gap is reserved between the lower end face of the insulating cap and the upper end face of the terminal base, so that the plug can be conveniently plugged and pulled out, and the plug is prevented from being difficult to insert or stuck in the socket.

According to the utility model discloses a further embodiment, further include, rotation-proof structure includes at least one flat face that sets up on the boss, the lower extreme drill way of terminal seat is equipped with the boss installation cavity rather than the phase-match, the boss is located the boss installation cavity.

According to the utility model discloses a further embodiment, further include, the dismouting structure is the profile of tooth structure including a plurality of sawtooth that sets up on the terminal surface excircle of insulator cap.

According to the utility model discloses a further embodiment, further include, be equipped with at least one breach on the lower terminal surface of insulating cap, it is equipped with the bullet arm structure to stretch along excircle tangential direction overhang in the breach, the lower extreme profile of face that spills the insulating cap in the below of bullet arm structure is formed with the fixture block, one side of fixture block is equipped with first inclined plane, the equipartition is equipped with the draw-in groove on the terminal block up end, in the fixture block stretched into the draw-in groove, be equipped with the second inclined plane with the adjacent one side of fixture block in the draw-in groove. Through setting up fixture block and draw-in groove structure, when the insulator cap is rotatory screwed up, the fixture block just contacts terminal seat up end, and the bullet arm structure lets open under the effect on first inclined plane and second inclined plane because of self elasticity, until the insulator cap can't continue to rotate, the fixture block falls into the draw-in groove, or the fixture block falls into the draw-in groove when the insulator cap reversal, the unidirectional rotation effect of similar ratchet. At the moment, the insulation cap cannot continue to rotate reversely, unless the structure of the elastic arm is damaged or slides out from the side edge due to large reaction torque, the effect of preventing the insulation cap from being opened by mistake is achieved, and safety protection is achieved. When the crown spring is replaced, a new insulating cap is replaced at the same time.

According to the utility model discloses a further embodiment, further include, the opposite side of fixture block is equipped with the third slope, the draw-in groove is equipped with the fourth slope with the adjacent one side of third slope of fixture block, the angle of first slope and terminal block terminal surface is less than the angle of third slope and terminal block terminal surface, the angle of second slope and terminal block terminal surface is less than the angle of fourth slope and terminal block terminal surface. Set up the transition inclined plane through clamping on the face at the antiport, make the insulator cap when the antiport reaches certain moment, the bullet arm structure also can upwards give way, realizes opening the insulator cap in the opposite direction under the prerequisite of not destroying the insulator cap, still needs specialized tool to apply certain moment, makes reaction torque be far greater than forward locking torque through setting up suitable inclined plane angle.

According to the utility model discloses a further embodiment, further include, spring shim is installed to the bottom of screw hole, spring shim's both ends are the screw hole bottom of butt insulating cap and the upper end of terminal seat respectively. Through setting up the spring gasket, make insulating cap and terminal seat threaded connection tighter, prevent that the screw thread is not hard up.

A charging seat comprising the detachable terminal structure.

The beneficial effects of the utility model are that, this structure production assembling process is simple, can only twist off the insulated cap with the help of specialized tool is rotatory in the use to change new hat spring, accomplish the maintenance of charging seat terminal, can follow the operation of charging port department moreover, need not open inside the charging seat, the terminal is maintained conveniently, and maintenance efficiency is high, practices thrift man-hour and part cost, is provided with safe locking structure simultaneously, avoids the maloperation, and application safety factor is high.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a schematic front view of the present invention;

FIG. 4 is an enlarged view at X in FIG. 3;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 3;

fig. 6 is a schematic bottom view of the present invention.

In the figure, an insulating cap 1, a terminal base 2, a crown spring 3, a terminal 4, a spring gasket 5,

the middle hole 11, the threaded hole 12, the dismounting structure 13, the notch 14, the elastic arm structure 15, the fixture block 151, the first inclined surface 152, the third inclined surface 153, the boss installation cavity 21, the clamping groove 22, the second inclined surface 221, the fourth inclined surface 222, the threaded end 41, the crown spring installation cavity 42, the boss 43 and the flat surface 44.

Detailed Description

Fig. 1-6 are schematic structural views of the present invention, a detachable terminal structure, which includes an insulating cap 1, a terminal base 2, a crown spring 3 and a terminal 4, the upper end of the terminal 4 is provided with a thread end 41 and a crown spring mounting cavity 42 for mounting the crown spring 3, the terminal 4 is inserted into the terminal seat 2 from the lower part, and the boss 43 at the lower end thereof abuts against the lower end of the terminal block 2, the threaded end 41 extends out of the terminal block 2, an anti-rotation structure is arranged between the terminal 4 and the terminal base 2, the insulating cap 1 is provided with a middle hole 11 and a threaded hole 12, the insulating cap 1 is sleeved on the threaded end 41 of the terminal base 2 through the threaded hole 12, and a gap is left between the lower end surface of the insulating cap and the upper end surface of the terminal base 2, a dismounting structure 13 which needs to be rotated by a special tool is arranged on the insulating cap 1, the crown spring 3 is installed in the crown spring installation cavity 42 and is located between the insulating cap 1 and the terminal base 2.

The insulating cap 1 is made of plastic materials, and the terminal 4 is made of metal materials. The lower end of the terminal 4 is connected with a cable.

The excircle of the terminal 4 is in clearance fit with the middle hole of the terminal base 2.

The rotation preventing structure has an effect of preventing the terminal 4 from rotating in the terminal base 2, and may be a flat surface or a pin hole structure.

The dismounting structure 13 can be special structures such as inner octagon, inner plum blossom that the mesopore 11 drill way set up, or special structures such as outer octagon, outer plum blossom that set up on the terminal surface excircle of insulator cap 1, and specialized tool is equipped with rather than the characteristic that matches, easy to assemble and rotatory insulator cap 1 of opening.

Preferably, the rotation-preventing structure includes at least one flat surface 44 disposed on a boss 43, a boss installation cavity 21 is disposed in the lower end hole of the terminal base 2 and is matched with the lower end hole, and the boss 43 is located in the boss installation cavity 21.

Preferably, the dismounting structure 13 is a tooth-shaped structure including a plurality of saw teeth and arranged on the outer circle of the end surface of the insulation cap 1.

Preferably, be equipped with at least one breach 14 on the lower terminal surface of insulating cap 1, it is equipped with elastic arm structure 15 to stretch along excircle tangential direction overhang in the breach 14, the lower terminal surface that the insulating cap 1 was leaked to elastic arm structure 15's below is formed with fixture block 151, one side of fixture block 151 is equipped with first inclined plane 152, the equipartition is equipped with draw-in groove 22 on the terminal seat 2 up end, in fixture block 151 stretched into draw-in groove 22, be equipped with second inclined plane 221 with fixture block 151 adjacent one side in the draw-in groove 22.

The angles between the first inclined surface 152 and the second inclined surface 221 and the end surface of the terminal block 2 may be 45 °.

Preferably, a third inclined surface 153 is disposed on the other side of the latch 151, a fourth inclined surface 222 is disposed on one side of the card slot 22 adjacent to the third inclined surface 153 of the latch 151, an angle between the first inclined surface 152 and the end surface of the terminal block 2 is smaller than an angle between the third inclined surface 153 and the end surface of the terminal block 2, and an angle between the second inclined surface 221 and the end surface of the terminal block 2 is smaller than an angle between the fourth inclined surface 222 and the end surface of the terminal block 2.

The angle between the first inclined surface 152 and the end surface of the terminal block 2 may be equal to the angle between the second inclined surface 221 and the end surface of the terminal block 2, and the angle between the third inclined surface 153 and the end surface of the terminal block 2 may be equal to the angle between the fourth inclined surface 222 and the end surface of the terminal block 2.

Preferably, a spring washer 5 is mounted at the bottom of the threaded hole 12, and two ends of the spring washer 5 respectively abut against the bottom of the threaded hole 12 of the insulating cap 1 and the upper end of the terminal block 2.

A charging seat comprising the detachable terminal structure.

The foregoing description is intended to be illustrative, rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations, or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A detachable terminal structure is characterized by comprising an insulating cap (1), a terminal seat (2), a crown spring (3) and a terminal (4), wherein a threaded end (41) and a crown spring installation cavity (42) for installing the crown spring (3) are arranged at the upper end of the terminal (4), the terminal (4) is inserted into the terminal seat (2) from the lower part, a boss (43) at the lower end of the terminal seat (2) is abutted to the lower end of the terminal seat (2), the threaded end (41) extends out of the terminal seat (2), an anti-rotation structure is arranged between the terminal (4) and the terminal seat (2), the insulating cap (1) is provided with a middle hole (11) and a threaded hole (12), the insulating cap (1) is sleeved on the threaded end (41) of the terminal seat (2) through the threaded hole (12), a gap is reserved between the lower end face of the insulating cap and the upper end face of the terminal seat (2), and a dismounting structure (13) which needs to be rotated by means of a special tool is arranged on the insulating cap (1), the crown spring (3) is arranged in the crown spring installation cavity (42) and is positioned between the insulating cap (1) and the terminal seat (2).

2. The removable terminal structure of claim 1, wherein the rotation preventing structure comprises at least one flat surface (44) arranged on a boss (43), the lower end hole of the terminal base (2) is matched with a boss mounting cavity (21), and the boss (43) is located in the boss mounting cavity (21).

3. A detachable terminal structure according to claim 1, wherein the detachable structure (13) is a tooth-shaped structure including a plurality of teeth provided on an outer circumference of an end surface of the insulative cap (1).

4. The detachable terminal structure according to claim 1, wherein at least one notch (14) is formed in the lower end surface of the insulation cap (1), an elastic arm structure (15) is arranged in the notch (14) in an overhanging manner along the tangential direction of an outer circle, a clamping block (151) is formed on the lower end surface of the insulation cap (1) below the elastic arm structure (15), a first inclined surface (152) is formed on one side of the clamping block (151), clamping grooves (22) are uniformly formed in the upper end surface of the terminal base (2), the clamping block (151) extends into the clamping groove (22), and a second inclined surface (221) is formed in one side of the clamping groove (22) adjacent to the clamping block (151).

5. The detachable terminal structure of claim 4, wherein a third inclined surface (153) is disposed on the other side of the latch (151), a fourth inclined surface (222) is disposed on one side of the latch (22) adjacent to the third inclined surface (153) of the latch (151), an angle between the first inclined surface (152) and the end surface of the terminal base (2) is smaller than an angle between the third inclined surface (153) and the end surface of the terminal base (2), and an angle between the second inclined surface (221) and the end surface of the terminal base (2) is smaller than an angle between the fourth inclined surface (222) and the end surface of the terminal base (2).

6. The detachable terminal structure of claim 1, wherein a spring washer (5) is mounted at the bottom of the threaded hole (12), and two ends of the spring washer (5) are respectively abutted against the bottom of the threaded hole (12) of the insulation cap (1) and the upper end of the terminal base (2).

7. A charging dock comprising a removable terminal structure according to any one of claims 1 to 6.