CN109273894B

CN109273894B - High-voltage connector

Info

Publication number: CN109273894B
Application number: CN201811122633.4A
Authority: CN
Inventors: 宁鹏涛; 沈榕鑫; 令狐云波; 唐兴然; 刘思锶
Original assignee: Kunshan Luxshare Precision Industry Co Ltd
Current assignee: Kunshan Luxshare Precision Industry Co Ltd
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2020-06-05
Anticipated expiration: 2038-09-26
Also published as: CN109273894A

Abstract

The invention belongs to the technical field of new energy automobile connectors, and discloses a high-voltage connector which comprises a plug and a socket, wherein the plug comprises an insulating head and a jack assembly arranged on the insulating head; the plug is still including setting up in the gluey core of jack subassembly both sides, and when the plug inserted the socket, gluey core can strut the plastic casing to drive the guard plate and remove along the inserted sheet, make the inserted sheet expose and insert in the jack subassembly from the upper end of guard plate. When the plastic shell is in a natural state, the protection plate is clamped in the clamping groove, and when the protection plate is touched by a hand, the protection plate cannot move downwards, so that the function of hand touch protection is safely and effectively achieved.

Description

High-voltage connector

Technical Field

The invention relates to the technical field of new energy automobile connectors, in particular to a high-voltage connector.

Background

On the new energy electric automobile, the transmission from the direct current charging port of the electric automobile to the battery, from the battery to the distribution box and from the distribution box to the electric control main power is realized through the high-voltage connector. To ensure the connection safety and avoid electric shock, connectors usually adopt certain protective measures.

Fig. 1 is a schematic structural diagram of a conventional socket of a high voltage connector, which includes an insulating base 1 ', an insert 2 ', and an insulating housing 3 ', wherein the insert 2 ' is disposed on the insulating base 1 ' and connected to a conducting wire for power transmission; the insulating housing 3 'is arranged at the periphery of the inserting piece 2', and the vertical distance between the top end of the insulating housing 3 'and the top end of the inserting piece 2' is a dimension H. The insulating housing 3 'can protect the inserting piece 2' to realize the hand-touching protection. However, this high-voltage connector has the following drawbacks:

1. a larger space exists in the insulating shell 3 ', so that the condition that the inserting piece 2' touches the hand easily occurs, and the protection of the touching hand is failed.

2. The realization of the tentacle protection function is mainly ensured by the dimension H between the top end of the insulating shell 3 'and the top end of the inserting piece 2', if effective protection is needed, the dimension H needs to be increased, and the product dimension is increased in space.

Therefore, it is desirable to design a high voltage connector to solve the above problems.

Disclosure of Invention

The invention aims to provide a high-voltage connector which can effectively realize tentacle protection.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-voltage connector comprises a plug and a socket, wherein the plug comprises an insulating head and a jack assembly arranged on the insulating head, and the socket comprises an insulating seat and an inserting piece fixedly arranged on the insulating seat;

the socket also comprises plastic shells which are oppositely arranged on two sides of the inserting piece and a protection plate which is arranged between the two plastic shells, wherein a clamping groove is formed in the inner side of each plastic shell, and the protection plate is clamped in the clamping groove when the plastic shells are in a natural state;

the plug still including set up in the gluey core of jack subassembly both sides, the plug inserts during the socket, it can strut to glue the core the plastic casing, and drive the guard plate is followed the inserted sheet removes, makes the inserted sheet is followed the upper end of guard plate exposes and inserts in the jack subassembly.

Preferably, the protection plate is vertically provided with a through hole for the insertion sheet to pass through.

Preferably, the guard plate be close to top position department be provided with be used for with glue the first joint portion of core joint, be close to bottom position department be provided with be used for with the second joint portion of draw-in groove joint.

Preferably, the first clamping portion and the second clamping portion are vertically staggered and are respectively arranged in pairs.

Preferably, a first bulge and a second bulge are arranged on the inner side of the plastic shell, the first bulge is close to the top end of the plastic shell relative to the second bulge, and the clamping groove is formed between the first bulge and the second bulge.

Preferably, the top surface of the second protrusion and the bottom surface of the protection plate are both horizontally arranged.

Preferably, the bottom surface of the second protrusion is inclined upward.

Preferably, the top surface of the first protrusion is inclined downwards, and when the plug is inserted into the socket, the rubber core is in contact with the top surface of the first protrusion.

Preferably, a third protrusion is arranged on the outer side of the rubber core and used for abutting against the top surface of the first protrusion.

Preferably, a buckle is arranged on the inner side of the rubber core and used for being clamped with the first clamping portion.

The invention has the beneficial effects that:

according to the invention, the two plastic shells are oppositely arranged on the two sides of the inserting piece, and the protection plate is arranged between the two plastic shells, so that the tentacle protection is realized. The protective plate is not moved downwards when the protective plate is touched by hands, so that the protective function of touching hands safely and effectively is achieved; when the plug inserts the socket, the rubber core on the plug can strut the plastic shell to make the guard plate break away from the draw-in groove, the rubber core that inserts gradually can drive the guard plate and remove along the inserted sheet, and the inserted sheet exposes from the upper end of guard plate gradually, and is connected with the plug jack subassembly electricity of plug, thereby realizes this high voltage connector's electric conductance.

Drawings

FIG. 1 is a schematic diagram of a prior art receptacle for a high voltage connector;

FIG. 2 is a schematic structural view of a high voltage connector provided by the present invention when the plug and the socket are not connected;

FIG. 3 is an enlarged view of the invention at A in FIG. 2;

FIG. 4 is a schematic structural view of a plug and a socket of the high voltage connector provided by the present invention in an initial insertion state;

FIG. 5 is an enlarged view of the invention at B in FIG. 4;

FIG. 6 is a schematic view of the high voltage connector of the present invention in an open position;

FIG. 7 is an enlarged view of the invention at C in FIG. 6;

fig. 8 is a schematic structural view of the high-voltage connector provided by the present invention in a final insertion state of the plug and the socket;

fig. 9 is an enlarged view of a portion of the structure of fig. 8 of the present invention at D.

In the figure:

1', an insulating seat; 2' inserting piece; 3', an insulating housing;

1. a plug; 11. an insulating head; 12. a socket assembly; 13. a rubber core; 131. a third protrusion; 132. buckling; 2. a socket; 21. an insulating base; 22. inserting sheets; 23. a plastic shell; 231. a first protrusion; 232. a second protrusion; 24. a protection plate; 241. a through hole; 242. a first clamping part; 243. a second clamping part; 25. a housing.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The high-voltage connector is mainly applied to new energy electric vehicles, for example, the connection of a direct-current charging port of the electric vehicle to a battery, the connection of the battery to a distribution box, the connection of the distribution box to an electric control main power transmission and the like meets the requirements that the transmission current is about 250A, the voltage is 600V-1000V, the transmission capacity of high-voltage heavy current resistance is achieved, and the insulation capacity between phases is met, so that reliable electric shock protection performance needs to be guaranteed to guarantee safe operation and operation capacity.

Therefore, the present invention provides a high voltage connector, as shown in fig. 2, the high voltage connector includes a plug 1 and a socket 2, wherein the plug 1 includes an insulating head 11 and a jack assembly 12 mounted on the insulating head 11, the socket 2 includes an insulating base 21 and an insert 22 fixed on the insulating base 21, and the electrical connection and disconnection are realized by the insertion and separation of the insert 22 and the jack assembly 12.

To achieve electric shock protection, specifically, referring to fig. 2 and 3, the socket 2 further includes plastic shells 23 disposed at two sides of the insertion piece 22, and a protection plate 24 disposed between the two plastic shells 23. The outer side of the plastic shell 23 is surrounded by the outer shell 25, a certain gap exists between the outer shell 25 and the plastic shell 23, and the plastic shell 23 can be protected without affecting the deformation of the plastic shell 23. The inner side of the plastic shell 23 is provided with a clamping groove, when the plastic shell 23 is in a natural state, the protection plate 24 is clamped in the clamping groove, when the protection plate 24 is touched by hands, the protection plate 24 cannot move downwards, and the function of protecting the hands safely and effectively is achieved; plug 1 is still including setting up in the gluey core 13 of jack subassembly 12 both sides, and when plug 1 inserted socket 2, the gluey core 13 on the plug 1 can strut plastic shell 23 to make protection plate 24 break away from the draw-in groove, the gluey core 13 of gradually inserting can drive protection plate 24 and remove along inserted sheet 22, and inserted sheet 22 exposes from the upper end of protection plate 24 gradually, and is connected with plug 1's jack subassembly 12 electricity, thereby realizes this high voltage connector's electric conductance.

With continued reference to fig. 2 and 3, the protection plate 24 is vertically provided with a through hole 241 for the insertion sheet 22 to pass through. The protection plate 24 is provided with a first clamping portion 242 used for clamping with the rubber core 13 near the top end, and a second clamping portion 243 used for clamping with the clamping groove near the bottom end. The first and second engaging

portions

242 and 243 are vertically offset and are provided in pairs. The inner side of the plastic shell 23 is provided with a first protrusion 231 and a second protrusion 232, the first protrusion 231 is close to the top end of the plastic shell 23 relative to the second protrusion 232, and the above-mentioned clamping groove for the second clamping portion 243 to be clamped is formed between the first protrusion 231 and the second protrusion 232. The outside of rubber core 13 is provided with third arch 131 for the top surface that supports and presses first arch 231 is in order to strut two plastic casing 23, makes two plastic casing 23 can move mutually in draw-in groove department, thereby makes plastic casing 23 warp, and the block state of draw-in groove is opened. The inboard of gluing core 13 is provided with buckle 132 for with first joint portion 242 block, when socket 2 was extracted to plug 1, buckle 132 can drive guard plate 24 and shift up, until remove to guard plate 24 by the draw-in groove block.

The top surface of the second protrusion 232 and the bottom surface of the protection plate 24 are both horizontally arranged, when the plug 1 and the socket 2 are not inserted and combined, and pressure is applied to the protection plate 24, the top surface of the second protrusion 232 only receives vertical downward force, and the two plastic shells 23 cannot be separated, so that the protection plate 24 is not easy to separate from the clamping groove, and the electric shock protection effect is effectively achieved.

As shown in fig. 4 and fig. 5, the plug 1 and the socket 2 of the high-voltage connector are schematically configured in an initial insertion state, in the initial insertion state, the second clamping portion 243 of the protection plate 24 is clamped in the clamping groove, and the plug 1 moves down to clamp the first clamping portion 242 of the protection plate 24 into the clamping buckle 132 of the rubber core 13. In order to make the first engaging portion 242 conveniently engage with the engaging portion 132, the top surface of the first engaging portion 242 is inclined upward along the direction close to the inserting piece 22, so that when the engaging portion 132 contacts with the top surface of the first engaging portion 242, the pressure perpendicular to the top surface is applied to the first engaging portion 242 along with the downward movement of the engaging portion 132, and the two first engaging portions 242 gradually approach to each other under the action of the pressure until they engage with the engaging portion 132.

As shown in fig. 6 and 7, which are schematic structural diagrams when the plastic shells 23 are in an open state, in this state, the third protrusion 131 on the outer side of the rubber core 13 extrudes the top surface of the first protrusion 231 to open the two plastic shells 23, so that the two plastic shells 23 can move away from each other at the clamping slot to deform, and the clamping slot is opened. Since the movement of the third protrusion 131 is vertically downward, in order to facilitate the conversion of the vertical movement of the third protrusion 131 into the back-to-back movement of the two first protrusions 231, the top surfaces of the first protrusions 231 are inclined downward in a direction approaching the insert 22. When the plug 1 is inserted further, the third protrusion 131 contacts with the top surface of the first protrusion 231, and the top surface of the first protrusion 231 is inclined and is pressed perpendicular to the top surface, so that the first protrusions 231 of the two plastic shells 23 can move away from each other, and the card slot is opened.

Fig. 8 and 9 are schematic structural views showing a final insertion state of the header 1 and the socket 2. When the card slot is opened, the protection plate 24 can move along the insertion piece 22 under the pushing of the rubber core 13, the insertion piece 22 gradually exposes from the top of the protection plate 24 and is inserted into the socket assembly 12 until being fully inserted into the socket assembly 12, and therefore the high-voltage connector realizes electric conduction.

When extracting plug 1 from socket 2, gluey core 13 is the rebound under the effect of pulling force, because first joint portion 242 of guard plate 24 is withheld by buckle 132 on gluey core 13, can drive guard plate 24 rebound when gluey core 13 removes, gets back to the protection position again. In order to expand the plastic shell 23 when the rubber core 13 moves upwards, so that the protection plate 24 can be clamped by the clamping groove again, in the embodiment, the bottom surface of the second protrusion 232 is inclined upwards in the direction close to the insertion piece 22. Thus, when the core 13 moves upwards, the third protrusion 131 can press the second protrusion 232 outwards, so that the plastic shell 23 is spread open and the protection plate 24 returns to the position shown in fig. 5.

Subsequently, the plug 1 moves upward continuously, at this time, the protection plate 24 should be separated from the buckle 132, and therefore, in this embodiment, the bottom surface of the first clamping portion 242 is inclined downward along the direction close to the insertion sheet 22, and when the rubber core 13 moves upward, the bottom surface of the first clamping portion 242 can be extruded, so that the first clamping portion 242 deforms inward, and is separated from the rubber core 13. In this embodiment, in order to ensure that the clamping action of the clamping groove on the protection plate 24 is reliable, the bottom surface of the first protrusion 231 and the top surface of the second clamping portion 243 are both horizontal planes, so that when the first clamping portion 242 is separated from the clamping buckle 132, the clamping groove is not adversely affected.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a high-voltage connector, includes plug (1) and socket (2), plug (1) including insulating head (11) and install in jack subassembly (12) on insulating head (11), socket (2) including insulating seat (21) and set firmly in inserted sheet (22) on insulating seat (21), its characterized in that:

the socket (2) further comprises plastic shells (23) which are oppositely arranged on two sides of the inserting piece (22) and a protection plate (24) which is arranged between the two plastic shells (23), a clamping groove is formed in the inner side of each plastic shell (23), and the protection plate (24) is clamped in the clamping groove when the plastic shells (23) are in a natural state;

plug (1) still including set up in the gluey core (13) of jack subassembly (12) both sides, plug (1) inserts during socket (2), it can strut to glue core (13) plastic casing (23), and drives guard plate (24) are followed inserted sheet (22) remove, make inserted sheet (22) are followed the upper end of guard plate (24) exposes and inserts in the jack subassembly (12).

2. The high-voltage connector as recited in claim 1, wherein the protection plate (24) is vertically provided with a through hole (241) for the insertion sheet (22) to pass through.

3. The high-voltage connector as recited in claim 1, wherein a first clamping portion (242) for clamping with the rubber core (13) is arranged at a position of the protection plate (24) close to the top end, and a second clamping portion (243) for clamping with the clamping groove is arranged at a position close to the bottom end.

4. The high-voltage connector according to claim 3, wherein the first and second catching portions (242, 243) are vertically staggered and are respectively provided in pairs.

5. High-voltage connector according to claim 3 or 4, characterized in that a first protrusion (231) and a second protrusion (232) are arranged inside the plastic shell (23), the first protrusion (231) being close to the top end of the plastic shell (23) relative to the second protrusion (232), the first protrusion (231) and the second protrusion (232) forming the locking groove therebetween.

6. The high-voltage connector as claimed in claim 5, characterized in that the top surface of the second projection (232) and the bottom surface of the shielding plate (24) are both arranged horizontally.

7. The high-voltage connector as claimed in claim 5, characterized in that the bottom surface of the second projection (232) is inclined upwards.

8. The high-voltage connector as claimed in claim 5, wherein the top surface of the first protrusion (231) is inclined downward, and the rubber core (13) is in contact with the top surface of the first protrusion (231) when the plug (1) is inserted into the socket (2).

9. The high-voltage connector as recited in claim 8, characterized in that a third protrusion (131) is disposed on the outside of the rubber core (13) for pressing against the top surface of the first protrusion (231).

10. The high-voltage connector as claimed in claim 5, wherein a snap (132) is provided on the inner side of the rubber core (13) for engaging with the first engaging portion (242).