CN211859006U

CN211859006U - Double-sealing high-voltage cable connector

Info

Publication number: CN211859006U
Application number: CN201922474755.6U
Authority: CN
Inventors: 娄鹏
Original assignee: Zhengzhou Saichuan Electronic Technology Co ltd
Current assignee: Zhengzhou Saichuan Electronic Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-03
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a double sealing's high-tension cable connector, includes the connector casing, installs the shielding crimping subassembly in the through-hole of connector casing and installs the tail-hood in the back through-hole department of connector casing, is equipped with the bellows snap ring in the tail-hood, still includes the front shroud of the tip of installation through-hole in the front, the front shroud is the structure is assembled to semi-open, the cover is equipped with sealed rubber ring on the neck of the surface of preceding through-hole, the internal surface of preceding through-hole is provided with the preceding line body that seals up the internal surface of cable and preceding through-hole, the internal surface of back through-hole is provided with the back line body that seals up the internal surface of cable and back through-hole, be provided with the seal groove on the flange of connector. The utility model discloses can reach IP 68's protection requirement, can realize the function of the earlier crimping back threading of cable simultaneously, be fit for the batch operation, promote the convenience of doing the cable and improve the efficiency when installing the cable.

Description

Double-sealing high-voltage cable connector

Technical Field

The utility model relates to an electric automobile connector technical field specifically is a double sealing's high-tension cable connector.

Background

With the development of new energy automobile technology, the requirements on the reliability, the protection level, the whole automobile assembly efficiency and the wiring harness production efficiency of the high-voltage connector are higher and higher, and the requirements on the appearance attractiveness are also higher and higher.

The existing connector and the cable are sealed by a single-layer sealing scheme, the protection grade is IP67, the sealing failure risk exists in long-term use, the connector and the cable need to be threaded first and then crimped when being installed, and the production efficiency of the wire harness is low (the corrugated pipe needs to be wound with an adhesive tape or a thermal shrinkage heat-shrinkable tube). The new energy passenger car is frequently used and has a severe environment, so that the requirement on the protection level of the high-voltage connector is very high, and the requirement on the protection level is IP 68.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-sealing high-voltage cable connector, which adopts a double-sealing structure of an installation interface and a double-sealing mechanism of a cable, so that the protection grade is higher, and the protection requirement of IP68 is met; simultaneously the utility model discloses can realize the function of the earlier crimping of cable back threading, be fit for batch operation, promote the convenience of doing the cable and improve the efficiency when installing the cable.

In order to realize the technical task, the utility model discloses a following technical scheme realizes:

the utility model provides a double sealing's high-tension cable connector, includes the connector casing, installs the shielding crimping subassembly in the through-hole of connector casing and installs the tail-hood in the back through-hole department of connector casing, is provided with the bellows snap ring in the tail-hood, still includes the front shroud of the tip of installation through-hole in the front, the cover is equipped with the sealing rubber ring on the neck of the surface of preceding through-hole, the internal surface of preceding through-hole is provided with carries out the preceding line body that seals with the internal surface of cable and preceding through-hole, the internal surface of back through-hole is provided with the back line body that seals up that carries out cable and back through-hole, be provided with the seal groove on the flange of connector casing, install the boundary.

The front cover plate is of a semi-open type assembled structure and comprises a pair of semicircular splicing rings with the same structure, and the front cover plate is combined into a whole through the splicing rings in an inserted mode.

The utility model discloses a splice ring, including splice ring, through-hole, inboard, the inboard of splice ring, the splice ring be equipped with the shape and the wall thickness assorted mounting groove of preceding through-hole, the outside of the one end of splice ring is equipped with the inserted sheet, the inboard be equipped with the first recess of inserted sheet assorted, the inboard be equipped with boss assorted second recess, inserted sheet and boss all are curved, but the length of inserted sheet is greater than the length of boss.

And a limiting step for limiting the shielding crimping assembly is arranged in the through hole.

The shielding crimping component comprises a crimping sleeve and a contact ring, and the contact ring is sleeved on the crimping sleeve.

The neck of the outer surface of the crimping sleeve is provided with a mounting groove for mounting the contact ring.

The contact ring is polygonal, and at least two contact points which are in contact with the limiting step are arranged on the contact ring.

The neck of crimping cover is equipped with a spacing concave surface at least, be equipped with quantity and shape on the spacing step and all with spacing concave surface assorted spacing convex surface.

The number of the limiting concave surfaces is two.

The inner wall of the front wire sealing body is connected with the outer surface of the insulating layer of the cable in a sealing mode, the outer wall of the front wire sealing body is connected with the inner surface of the front through hole in a sealing mode, the inner wall of the rear wire sealing body is connected with the outer surface of the protective layer of the cable in a sealing mode, and the outer wall of the rear wire sealing body is connected with the inner surface of the rear through.

Compared with the prior art, the beneficial effects of the utility model are that:

Drawings

FIG. 1 is a cross-sectional view of the connector;

FIG. 2 is an exploded view of the connector;

FIG. 3 is a schematic view of the structure of the front cover plate;

FIG. 4 is a schematic structural view of a shield crimp assembly;

FIG. 5 is a schematic view of the crimp sleeve;

FIG. 6 is a schematic view of the contact ring structure;

fig. 7 is a structural schematic diagram of a limiting step in a through hole of the connector.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments thereof.

The high-voltage cable is sequentially provided with a protective layer, a shielding layer, an insulating layer and a conductor from outside to inside, and a lead at the end of the cable is pressed together with a wiring terminal. The through hole is formed in the connector shell for the cable to pass through, the cable penetrates through the rear through hole and penetrates out of the front through hole, and the connector shell is connected with the case when the high-voltage cable connector is used (namely, the flange of the connector shell is in contact with the case, and the wiring terminal is inserted into the case). The high-voltage cable needs to be grounded in a shielding mode, namely, the shielding layer of the high-voltage cable is conducted with the ground through a certain method, the high-voltage cable connector is connected with the case when in use, and the case is conducted with the ground, so that the shielding grounding can be achieved only by conducting the shielding layer with the connector shell. The utility model provides a what shielding crimping subassembly adopted is metal material, what connector casing adopted also is metal material.

As shown in 1-2: a double-sealed high-voltage cable connector comprises a connector shell 1, a shielding compression joint component 2 arranged in a through hole of the connector shell 1 (the inside of the shielding compression joint component 2 is communicated with a shielding layer of a cable, the outside of the shielding compression joint component 2 is fully contacted with the connector shell 1 to realize shielding grounding of the high-voltage cable), a tail cover 3 arranged at a rear through hole of the connector shell 1, a corrugated pipe snap ring 4 sleeved on a corrugated pipe is arranged in the tail cover 3, the high-voltage cable connector also comprises a front cover plate 5 arranged at the end part of the front through hole, the front cover plate 5 is of a semi-open type assembly structure and can be assembled from two sides and then arranged on the front through hole, a sealing rubber ring 6 is sleeved on the neck part of the outer surface of the front through hole, the front cover plate 5 is provided with the through hole, the cable passes through the through hole in the front cover plate 5, the front cover plate 5, avoid the rainwater to get into preceding through-hole, simultaneously front shroud 5 can prevent the neck landing of sealed rubber ring 6 from preceding through-hole department, and front shroud 5 and sealed rubber ring 6 have formed the one deck of installing interface sealed. The inner surface of the front through hole is provided with a front wire sealing body 7 for sealing the cable and the inner surface of the front through hole, the inner surface of the rear through hole is provided with a rear wire sealing body 8 for sealing the cable and the inner surface of the rear through hole, and the front wire sealing body 7 and the rear wire sealing body 8 form double-layer sealing of the cable. And the flange of the connector shell 1 is provided with a sealing groove 9, an interface rubber ring 10 is arranged in the sealing groove 9, and when the connector is connected with a case, the interface rubber ring 10 seals the joint, so that a second layer of seal of a mounting interface is formed. The double-layer sealing of the installation interface and the double-layer sealing of the cable form a double-sealing effect, so that the protection grade is higher, and the protection requirement of IP68 is met.

As shown in fig. 3, the front cover plate 5 is assembled in the direction of the arrow in the figure, the front cover plate 5 with a semi-open type assembly structure is adopted, before the cable and the connector are assembled, the cable and the connecting terminal can be firstly crimped, then the cable after crimping is inserted into the connector, the front cover plate 5 is assembled, and the front cover plate 5 is arranged at the front through hole, so that the assembly of the cable and the connector is completed; and adopt the front shroud of integral type, the cable can only penetrate the connector earlier, just can carry out the crimping with cable and binding post after covering the front shroud (binding post is big, can not pass the front shroud), and during the crimping, the distance between each binding post is little, and the crimping operation is inconvenient. Adopt the front shroud 5 of this kind of semi-open type structure of assembling, promoted the convenience and the installation effectiveness of doing the cable.

The front cover plate 5 is a semi-open type assembled structure, the front cover plate 5 mainly comprises a pair of semicircular splicing rings 51 with the same structure, and the semicircular splicing rings 51 are mutually spliced to form the complete front cover plate 5.

The splicing ring 51 is provided with a mounting groove 511 matched with the shape and the wall thickness of the front through hole, an inserting piece 512 is arranged on the outer side of one end of the splicing ring 51, a boss 513 is arranged on the inner side of the splicing ring, a first groove 514 matched with the inserting piece 512 is arranged on the outer side of the other end of the splicing ring 51, a second groove 515 matched with the boss 513 is arranged on the inner side of the splicing ring, when the front cover plate 5 is assembled, the inserting piece 512 is inserted into the first groove 514, and the boss 513 is inserted into the second groove 515. The front cover plate 5 thus constructed is tightly fitted over the front through-hole through the fitting groove 511.

The inserting sheet 512 and the boss 513 are both arc-shaped, the length of the inserting sheet 512 is larger than that of the boss 513, when the two splicing rings 51 are spliced and assembled with each other, the inserting sheet 512 and the first groove 514 on the outer side contact with each other first, a guiding effect is achieved on the assembly of the front cover plate 5, and the assembly is convenient.

As shown in fig. 7, a limiting step 11 for limiting the shielding crimping component 2 is arranged in the through hole, so that the shielding crimping kit 2 is convenient to install.

As shown in fig. 4, the shielding crimping assembly 2 includes a crimping sleeve 21 and a contact ring 22, and the contact ring 22 is sleeved on the crimping sleeve 21.

As shown in fig. 5, the crimping sleeve 21 has a diameter-variable structure, the large diameter section is a neck, and the neck on the outer surface of the crimping sleeve 21 is provided with a mounting groove 211 for mounting the contact ring 22.

The crimping sleeve 21 is installed from the rear through hole, the small-diameter section is in front of the rear through hole along the front-rear direction of the through hole, the large-diameter section is behind, the large-diameter section is clamped in the limiting step 11, the crimping sleeve 21 cannot move forwards, and the crimping sleeve 21 can be conveniently taken out from the rear through hole. The limiting step 11 blocks the crimping sleeve 21 from sliding forwards in the through hole, and the cable is prevented from moving forwards because the cable and the crimping sleeve 21 are crimped together.

As shown in fig. 4 and 6, the contact ring 22 is polygonal, at least two contact points 221 protruding outward away from the center are arranged on the circumference of the contact ring 22, and the contact points 221 contact with the limiting step 11, so that the crimp sleeve 21 and the connector housing 1 can be fully contacted and conducted.

As shown in fig. 5 and 7, the neck of the crimping sleeve 21 is provided with at least one limiting concave surface 512, and the limiting step 11 is provided with limiting convex surfaces 111 whose number and shape are matched with the limiting concave surfaces 512.

Spacing concave surface 512 has two, crimping cover 21 also can be earlier with the cable carry out the crimping, then penetrate inside the connector together, further promote the convenience of doing the cable like this and improve the efficiency when installing the cable, shielding crimping subassembly 2 is when packing into in the connector casing 1, because spacing concave surface 512 and spacing convex surface 511 mutually support, shielding crimping subassembly 2 can not rotate, also can not take place to rotate the cable, avoided the wire to appear generating heat because of rotating for a long time, cracked phenomenon.

The inner wall of the front wire sealing body 7 is connected with the outer surface of the insulating layer of the cable in a sealing mode, the outer wall of the front wire sealing body is connected with the inner surface of the front through hole in a sealing mode, the inner wall of the rear wire sealing body 8 is connected with the outer surface of the protecting layer of the cable in a sealing mode, and the outer wall of the rear wire sealing body is connected with the inner surface of the. Forming a double-layer sealing structure of the cable.

The back wire sealing body 8 is positioned at the back of the crimping sleeve 21, the crimping sleeve 21 can be prevented from sliding out from the back through hole, and the back wire sealing body 8 and the fiber step 11 are matched to prevent the crimping sleeve 21 from sliding back and forth in the through hole, namely, prevent the cable from moving back and forth in the connector.

The utility model provides a pair of double-seal's high-tension cable connector has realized installation interface double containment and cable double containment, and this kind of double-seal's mode makes the protection level higher, reaches the protection requirement that reaches IP 68. Simultaneously, the front cover plate 5 of the semi-open type assembling structure can realize the function of crimping and threading, and the convenience of manufacturing cables and the efficiency of installing the cables are improved. And the front cover plate 5 is closely contacted with the cable, so that the situation that the front wire sealing body 7 fails in sealing and water enters due to the swinging of the cable can be prevented.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a double sealing's high-tension cable connector, includes the connector casing, installs the shielding crimping subassembly in the through-hole of connector casing and installs the tail-hood in the back through-hole department of connector casing, is provided with bellows snap ring, its characterized in that in the tail-hood: the connector shell comprises a connector shell and is characterized by further comprising a front cover plate arranged at the end part of the front through hole, a sealing rubber ring is sleeved on the neck of the outer surface of the front through hole, a front wire sealing body for sealing the inner surfaces of the cable and the front through hole is arranged on the inner surface of the front through hole, a rear wire sealing body for sealing the inner surfaces of the cable and the rear through hole is arranged on the inner surface of the rear through hole, a sealing groove is formed in a flange of the connector shell, and the sealing rubber ring is arranged in the sealing groove.

2. A double-sealed high-voltage cable connector as claimed in claim 1, wherein: the front cover plate is of a semi-open type assembled structure and comprises a pair of semicircular splicing rings with the same structure, and the front cover plate is combined into a whole through the splicing rings in an inserted mode.

3. A double-sealed high-voltage cable connector as claimed in claim 2, wherein: the utility model discloses a splice ring, including splice ring, through-hole, inboard, the inboard of splice ring, the splice ring be equipped with the shape and the wall thickness assorted mounting groove of preceding through-hole, the outside of the one end of splice ring is equipped with the inserted sheet, the inboard be equipped with the first recess of inserted sheet assorted, the inboard be equipped with boss assorted second recess, inserted sheet and boss all are curved, but the length of inserted sheet is greater than the length of boss.

4. A double-sealed high-voltage cable connector as claimed in claim 1, wherein: and a limiting step for limiting the shielding crimping assembly is arranged in the through hole.

5. A double-sealed high-voltage cable connector as claimed in claim 4, wherein: the shielding crimping component comprises a crimping sleeve and a contact ring, and the contact ring is sleeved on the crimping sleeve.

6. A double-sealed high-voltage cable connector as claimed in claim 5, wherein: the neck of the outer surface of the crimping sleeve is provided with a mounting groove for mounting the contact ring.

7. A double-sealed high-voltage cable connector as claimed in claim 5, wherein: the contact ring is polygonal, and at least two contact points which are in contact with the limiting step are arranged on the contact ring.

8. A double-sealed high-voltage cable connector as claimed in claim 5, wherein: the neck of crimping cover is equipped with a spacing concave surface at least, be equipped with quantity and shape on the spacing step and all with spacing concave surface assorted spacing convex surface.

9. A double-sealed high-voltage cable connector as claimed in claim 8, wherein: the number of the limiting concave surfaces is two.

10. A double-sealed high-voltage cable connector as claimed in claim 1, wherein: the inner wall of the front wire sealing body is connected with the outer surface of the insulating layer of the cable in a sealing mode, the outer wall of the front wire sealing body is connected with the inner surface of the front through hole in a sealing mode, the inner wall of the rear wire sealing body is connected with the outer surface of the protective layer of the cable in a sealing mode, and the outer wall of the rear wire sealing body is connected with the inner surface of the rear through.