CN111478125B

CN111478125B - Partition shielding connector

Info

Publication number: CN111478125B
Application number: CN202010406680.2A
Authority: CN
Inventors: 陈铁成
Original assignee: Xiamen Wain Electrical Co ltd
Current assignee: Xiamen Wain Electrical Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2024-05-03
Anticipated expiration: 2040-05-14
Also published as: CN111478125A

Abstract

The invention relates to a partition shielding connector which comprises a plug shell, a base shell, a plug insert, a base insert and a rear cover. The plug shell, the base shell and the rear cover are all made of EMC shielding materials, and an EMC shielding cavity with a wire outlet is formed after the plug shell, the base shell and the rear cover are fixedly connected; an electromagnetic shielding sheet made of EMC shielding materials is arranged in the EMC shielding cavity, and the electromagnetic shielding sheet partitions the EMC shielding cavity into at least two independent cavities. The partition shielding connector has the advantages that cable signals in the connector shell cannot be interfered by the outside, the sealing degree is high, the EMC shielding effect is good, the EMC shielding cavity is partitioned into at least two independent cavities through the electromagnetic partition sheet, and when the cable connector is connected with two groups of cables, lines in the two independent shielding cavities cannot interfere with each other.

Description

Partition shielding connector

Technical Field

The invention relates to the technical field of cable connection, in particular to a partition shielding connector.

Background

The cable is typically twisted from several wires or groups of wires, each group being insulated from each other and twisted around a center, the entire outer face being covered with a highly insulating coating, the cable having the characteristics of inner energizing, outer insulation. The cable connector is an important device for cable installation, is mainly suitable for signal transmission between various digital program controlled exchanges of transmission equipment, internal connection of photoelectric transmission equipment and distribution frame, and is used for transmitting communication equipment such as data, audio frequency, video frequency and the like.

Because of the nature of the cable that can be used to transmit signals, existing cables are wrapped with a cable shielding mesh to shield EMC (Electromagnetic Compatibility ) in order to prevent the signals from being disturbed. EMC shielding means that an electronic device is not disturbed by other devices and is not affected by other devices. Electromagnetic compatibility, as well as our familiar safety, is one of the most important indicators of product quality, and shields are typically used to attenuate field strengths caused by certain sources, and may be made of metals such as copper, aluminum, steel, and the like.

Because signal interaction circuit is becoming complicated day by day, cable connector often can be used for connecting two sets of even multiunit cable lines, and current cable connector often only the shell is equipped with EMC shielding, does not set up the EMC shielding between the cable lines of different groups, consequently also takes place mutual electromagnetic interference easily between the cable lines of different groups, influences the quality of signal, leads to cable transmission's signal to take place the distortion, seriously influences the transmission of information.

Disclosure of Invention

Based on this, it is necessary to provide a zoned shielding connector for the problem of mutual electromagnetic interference between different groups of cables.

The invention is realized by the following technical scheme:

A zoned shielded connector comprising: the plug comprises a plug shell, a base shell, a plug insert, a base insert and a rear cover, wherein the plug insert is inserted into the plug shell; the plug shell, the base shell and the rear cover are all made of EMC shielding materials, and an EMC shielding cavity with a wire outlet is formed after the plug shell, the base shell and the rear cover are fixedly connected; electromagnetic shielding pieces made of EMC shielding materials are arranged in the EMC shielding cavity, and the EMC shielding cavity is partitioned into at least two independent cavities by the electromagnetic shielding pieces.

Further, the plug insert is inserted into the plug shell, the base insert is inserted into the base shell, a separation sheet made of EMC shielding materials is arranged on the plug insert, and a raised separation rib is arranged on the base shell; when the plug shell is fixedly connected with the base shell, the partition sheet is connected with the partition ribs to form the electromagnetic partition sheet, and the EMC shielding cavity is partitioned into at least two independent cavities.

Further, the base shell is provided with a base side wall surrounding the side surface of the base plug body, and the plug shell is provided with a plug side wall surrounding the side surface of the plug body; when the plug shell is fixedly connected with the base shell, the side wall of the base is inserted into the groove between the side wall of the plug and the plug insert.

Further, two partition grooves for the partition sheets to be inserted are formed in the plug shell, and the two partition grooves are formed in the symmetrical positions of the two sides of the symmetrical surface of the plug shell.

Further, the rear cover, the plug housing and the base housing are all in conduction with a ground wire.

Further, the device also comprises a grounding screw, wherein the grounding screw comprises a screw and a grounding spring plate, wherein the screw is made of conductive materials and is in electric conduction with each other; the plug is characterized in that a grounding female pin is arranged in the plug insert body, a grounding male pin is electrically connected to the base shell, the grounding wire is fixed at the inner side wall of the grounding female pin through the screw, and the grounding male pin is inserted into the grounding female pin; the grounding spring piece is respectively abutted with the rear cover and the plug shell.

Further, the plug comprises an opening shielding ring made of EMC shielding materials, one or two cable interfaces are arranged on the side face of the plug shell, the outer side wall of the opening shielding ring is in butt joint with the inner side wall of the cable interfaces, the inner side wall of the opening shielding ring is provided with a claw protruding towards the axis direction of the opening shielding ring, and the claw is in butt joint with a cable shielding net of a cable in the cable interfaces.

Further, a sealing gasket is arranged between the rear cover and the plug shell; the outer side wall of the cable connector is in threaded connection with a nut, and a sealing ring is arranged between the nut and the plug shell.

Further, a threaded hole is formed in the plug housing, a boss protruding towards the axis direction is arranged on the inner side wall of the plug housing, a threaded through hole is formed in the rear cover, a clamping hook matched with the boss is arranged at the bottom of the rear cover, and the rear cover is fixed on the plug housing through the clamping hook and a threaded nail.

Further, an elastic buckle is arranged on the side face of the plug insert body, a protruding block is arranged on the elastic buckle, and an inner groove matched with the protruding block is arranged on the inner side wall of the plug shell; the inner side wall of the base shell is provided with a base boss, and the side surface of the base insert body is provided with a base clamping hook matched with the base boss.

The plug housing, the base housing and the rear cover which are made of EMC shielding materials form an EMC shielding cavity, and meanwhile, the electromagnetic shielding cavity is isolated into at least two independent cavities by the electromagnetic shielding pieces, so that the plug housing, the base housing and the rear cover have the following advantages:

Through EMC shielding chamber for cable signal in the connector housing can not be suffered outside interference, and the leakproofness is high, and EMC shielding effect is good. The EMC shielding cavity is partitioned into at least two independent cavities through the electromagnetic shielding piece, and when the cable connector is connected with two groups of cables, the circuits in the two independent shielding cavities cannot interfere with each other, and signals are not easy to distort. According to the technical scheme, more than one cable is connected with one connector at the same time, the effect of a plurality of connectors is achieved, the size is small, and the space is saved.

Drawings

FIG. 1 is an exploded view of one embodiment of a zoned shielded connector of the present invention;

fig. 2 is an overall schematic diagram of another embodiment of a zoned shielded connector of the present invention.

FIG. 3 is an overall schematic of an embodiment of a zoned shielded connector of the present invention;

FIG. 4 is a schematic view of the base housing and base insert after being fixedly connected;

FIG. 5 is a schematic view of the plug housing and plug insert after being fixedly connected;

FIG. 6 is a top view of the base housing and base insert after being fixedly connected;

FIG. 7 is a schematic cut-away view of a zoned shielded connector of the present invention;

FIG. 8 is a schematic view of an split shield ring of the present invention;

FIG. 9 is a schematic view of the inner side wall of the split shield ring of the present invention;

FIG. 10 is a schematic view of the structure of a grounding screw;

FIG. 11 is a schematic cross-sectional view of the plug housing and plug insert after being fixedly connected;

FIG. 12 is a schematic cross-sectional view of the base housing and base insert after being fixedly connected;

FIG. 13 is an assembled schematic view of the rear cover;

FIG. 14 is a schematic cross-sectional view of a plug housing;

FIG. 15 is a schematic cross-sectional view of a plug insert;

FIG. 16 is a schematic cross-sectional view of a base insert;

FIG. 17 is a schematic cross-sectional view of a base housing;

Fig. 18 is a schematic structural view of the plug housing.

In the drawings, the list of components represented by the various numbers is as follows:

100. A plug housing; 110. plug side walls; 120. a boss; 130. a partition groove; 140. an inner tank; 200. a base housing; 210. a base side wall; 220. a base boss; 300. a plug insert; 310. a grounding female needle; 320. a protruding block; 330. elastic buckle; 340. a first zone; 350. a second zone; 400. a base insert; 410. a ground pin; 420. a base clamping hook; 500. a rear cover; 510. a hook; 600. an open shield ring; 610. a claw; 700. a screw cap; 710. a seal ring; 810. a separator sheet; 820. a partition rib; 900. a grounding screw; 910. a screw; 920. a grounding spring plate; 930. and a grounding wire.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily apparent, a more particular description of the invention briefly described above will be rendered by reference to the appended drawings. It is apparent that the specific details described below are only some of the embodiments of the present invention and that the present invention may be practiced in many other embodiments that depart from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, 3, 4, 5, 6 and 7, the present invention provides a partition shielding connector, which comprises a plug housing 100, a base housing 200, a plug insert 300, a base insert 400 and a rear cover 500, wherein the plug insert 300 is inserted into the plug housing 100, and the base insert 400 is inserted into the base housing 200; the plug housing 100, the base housing 200 and the rear cover 500 are all made of EMC shielding material, the base housing 200 is provided with a base side wall 210 surrounding the side surface of the base plug body 400, and the plug housing 100 is internally provided with a plug side wall 110 surrounding the side surface of the plug body 300; when the plug housing 100 is fixedly connected with the base housing 200, the base side wall 210 is inserted into the groove between the plug side wall 110 and the plug insert 300. After the plug housing 100, the base housing 200 and the rear cover 500 are fixedly connected, an EMC shielding cavity with a wire outlet is formed, and the EMC shielding cavity is used for wrapping a cable inside the housing, so that electromagnetic interference from the outside is avoided; the plug insert 300 is provided with a partition plate 810 made of EMC shielding material, the base shell 200 is provided with a convex partition rib 820, and when the plug shell 100 is fixedly connected with the base shell 200, the partition plate 810 and the partition rib 820 are mutually abutted and jointly connected to form an electromagnetic partition plate, and the electromagnetic partition plate partitions an EMC shielding cavity into two independent cavities.

Note that, the EMC shielding material in this embodiment may be made of a metal material such as copper, aluminum, steel, or other conductive materials.

In the embodiment, two cables are separated, and two outlets are separated to be outgoing, so that the cables are not interfered with each other. The concrete structure is as follows: at the plug end, the two areas of the plug end are separated by adopting a separation piece 810 to be tightly matched with the metal plug shell 100; at the base end, partition is realized through a base shell 200 made of metal materials, the base shell 200 is provided with a convex partition rib 820, and partition isolation is realized through the partition rib 820; when in plugging, the partition piece 810 of the plug end is contacted with the partition rib 820 of the base end, so that the EMC shielding cavity is partitioned into two cavities, signals at the two ends are not mutually interfered, and the stability of signal transmission is ensured.

The base side wall 210 is formed to wrap the base plug 400 in a ring shape, the plug side wall 110 is also formed to wrap the plug 300, and after the plug is docked with the base, the plug side wall 110 wraps the base side wall 210, so that the connector is completely shielded as a whole.

Through EMC shielding cavity for cable signal in the connector housing can not be suffered outside interference, the bilayer structure setting of plug lateral wall 110 and base lateral wall 210 makes the leakproofness of connector high, and EMC shielding effect is good. The EMC shielding cavity is partitioned into at least two independent cavities through the electromagnetic shielding piece, and when the cable connector is connected with two groups of cables, the circuits in the two independent shielding cavities cannot interfere with each other, and signals are not easy to distort.

According to the technical scheme, more than one cable is connected with one connector at the same time, the effect of a plurality of connectors is achieved, space occupation caused by using a plurality of connectors is avoided, and the portable connector has the advantage of being small and exquisite.

Specifically, referring to fig. 18, two partition grooves 130 into which the partition pieces are inserted are provided in the plug housing 100, and the two partition grooves 130 are provided at symmetrical positions on both sides of the symmetry plane of the plug housing 100. The space occupied by the two EMC shielding cavities separated and disconnected is generally different, so that the two separation grooves 130 symmetrically arranged can facilitate the insertion of the two plug inserts 300 in different directions, and the flexibility of the connector is enhanced.

Referring to fig. 5 and 6, in the present embodiment, the plug insert 300 is divided into two regions, namely, a first region 340 and a second region 350, and the two regions are separated by a partition sheet, so that the first region 340 and the second region 350 will not interfere with each other. Because the first area 340 occupies a larger volume than the second area 350, two symmetrical partition grooves 130 are provided, so that the plug insert 300 with two different directions can be flexibly inserted into the plug housing 100, and the double shielding effect is realized. The first area and the second area may be signal area or power area, which may depend on the actual use.

Further, referring to fig. 10, 11 and 12, the connector further includes a grounding screw 900, and the grounding screw 900 includes a screw 910 and a grounding spring sheet 920 made of conductive materials and electrically connected to each other; the plug insert 300 is internally provided with a grounding female pin 310, the base shell 200 is electrically connected with a grounding male pin 410, the grounding wire 930 is fixed at the inner side wall position of the grounding female pin 310 through a screw 910, and the grounding male pin 410 is spliced on the grounding female pin 310; the grounding spring pieces 920 are respectively abutted against the rear cover 500 and the plug housing 100. With the above configuration, the ground wire 930, the rear cover 500, the plug housing 100, and the base housing 200 are electrically connected.

It should be noted that, the screw 910 and the grounding spring plate 920 are integrally formed, the grounding spring plate 920 is a metal elastic plate which is curved and has elasticity, when the screw 910 is in threaded connection with the grounding pin 310, the inner side surface of the grounding spring plate 920 is abutted against and conducted with the inner side of the insert housing made of metal material, and after the rear cover 500 is mounted, the bottom of the rear cover 500 made of metal material is extruded and conducted with the outer side surface of the grounding spring plate 920; thereby realizing the effect that the plug housing, the rear cover 500 and the base housing 200 are all grounded.

Further, referring to fig. 8 and 9, the technical solution of the present invention further includes an open shielding ring 600 made of EMC shielding material, two cable interfaces are provided on the side surface of the plug housing 100, the outer side wall of the open shielding ring 600 is abutted against the inner side wall of the cable interface, the inner side wall of the open shielding ring 600 is provided with a claw 610 protruding toward the axial direction thereof, and the claw 610 is abutted against the cable shielding net of the cable in the cable interface.

In this embodiment, two cable interfaces for penetrating the cable are provided on the side of the plug housing 100. While in other embodiments the sides of the plug housing 100 are not limited to two cable interfaces, referring to fig. 2, it may be one or more cable interfaces.

When the open shielding ring 600 made of the metal material passes through the cable interface, the outer side wall of the open shielding ring 600 is extruded by the inner side wall of the cable interface, the clamping jaw 610 of the open shielding ring 600 firstly contacts the cable shielding net and then generates plastic deformation, so that the clamping jaw 610 clings to the cable shielding net, and at the moment, the outer side wall of the open shielding ring 600 clings to the inner side wall of the cable interface, thereby achieving the effect of connecting with the plug housing 100 and realizing EMC shielding.

Further, a gasket is provided between the rear cover 500 and the plug housing 100; the outer side wall of the cable connector is in threaded connection with a nut 700, and a sealing ring 710 is also arranged between the nut 700 and the plug housing 100.

It will be appreciated that the sealing performance is enhanced by the sealing ring 710, so that the waterproof and dustproof grades of the connector can be effectively improved.

Referring to fig. 13, a threaded hole is formed in the plug housing 100, a boss 120 protruding toward the axial direction is formed in the inner sidewall of the plug housing 100, a threaded through hole is formed in the rear cover 500, a hook 510 matched with the boss 120 is formed at the bottom of the rear cover 500, and the rear cover 500 is fixed to the plug housing 100 through the hook 510 and a screw.

During assembly, the rear cover 500 is firstly attached to the sealing gasket and then pushed to the right, so that the clamping hooks 510 of the rear cover 500 are in contact with the boss 120 of the plug housing 100, thereby pre-tightening the rear cover 500 and the plug housing 100, and then the rear cover 500 is screwed on the plug housing 100 through screws. The waterproof and dustproof composite material has the advantages of tight combination, difficult occurrence of looseness and high waterproof and dustproof grade.

Referring to fig. 14 and 15, an elastic buckle 330 is provided on a side surface of the plug insert 300, a protrusion block 320 is provided on the elastic buckle 330, an inner groove 140 matching with the protrusion block 320 is provided on an inner side wall of the plug housing 100, when the plug insert 300 is inserted into the plug housing 100, the elastic buckle 330 is extruded and contracted, the protrusion block 320 is embedded into the groove, and the elastic buckle 330 rebounds, thereby completing the assembly;

Referring to fig. 16 and 17, the inner sidewall of the base housing 200 is provided with a base boss 220, a base hook 420 is provided at a side surface of the base insert 400, and the base insert 400 is fixed in the base housing 200 by the cooperation of the base boss 220 and the base hook 420. When the base plug body 400 is inserted, the base clamping hooks 420 rebound to hook the boss, so that the installation of the base plug body 400 is completed.

The invention realizes the partition electromagnetic isolation of different cables in the connector, avoids mutual interference between signals, and the housing thereof realizes 360-degree wrapping of EMC shielding materials, thereby having good shielding effect and good signal transmission quality. The waterproof and dustproof water-proof device also has the advantages of high waterproof and dustproof grade and small volume.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications, substitutions and improvements can be made by those skilled in the art without departing from the spirit of the invention, and are intended to be within the scope of the invention. Accordingly, the protection scope of the present invention is subject to the claims.

Claims

1. A zoned shielded connector, comprising: the plug comprises a plug shell, a base shell, a plug insert, a base insert and a rear cover; the plug shell, the base shell and the rear cover are all made of EMC shielding materials, and an EMC shielding cavity with a wire outlet is formed after the plug shell, the base shell and the rear cover are fixedly connected; an electromagnetic shielding sheet made of an EMC shielding material is arranged in the EMC shielding cavity, and the electromagnetic shielding sheet partitions the EMC shielding cavity into at least two independent cavities;

The plug insert is inserted into the plug shell, the base insert is inserted into the base shell, a separation sheet made of EMC shielding materials is arranged on the plug insert, and a raised separation rib is arranged on the base shell; when the plug shell is fixedly connected with the base shell, the partition sheet is connected with the partition ribs to form the electromagnetic partition sheet, and the EMC shielding cavity is partitioned into at least two independent cavities;

The plug comprises a plug body, a base shell and a plug shell, wherein the plug body is arranged on the plug body; when the plug shell is fixedly connected with the base shell, the side wall of the base is inserted into a groove between the side wall of the plug and the plug insert;

Two partition grooves for the partition sheets to insert are formed in the plug shell, and the two partition grooves are arranged at symmetrical positions on two sides of a symmetrical surface of the plug shell;

the rear cover, the plug housing and the base housing are all communicated with a ground wire.

2. The zoned shielded connector of claim 1, further comprising a ground screw comprising a screw and a ground spring made of a conductive material and electrically conductive to each other; the plug is characterized in that a grounding female pin is arranged in the plug insert body, a grounding male pin is electrically connected to the base shell, the grounding wire is fixed at the inner side wall of the grounding female pin through the screw, and the grounding male pin is inserted into the grounding female pin; the grounding spring piece is respectively abutted with the rear cover and the plug shell.

3. The zoned shielded connector of claim 1, further comprising a split shielding ring made of EMC shielding material, wherein one or two cable interfaces are provided on a side surface of the plug housing, an outer side wall of the split shielding ring abuts against an inner side wall of the cable interface, and a claw protruding toward an axial direction of the split shielding ring is provided on an inner side wall of the split shielding ring, and the claw abuts against a cable shielding net of a cable in the cable interface.

4. The zoned shielded connector of claim 3, wherein a gasket is provided between the rear cover and the plug housing; the outer side wall of the cable connector is in threaded connection with a nut, and a sealing ring is arranged between the nut and the plug shell.

5. The zoned shield connector according to claim 1, wherein the plug housing is provided with a threaded hole, a boss protruding toward the axial direction is provided on the inner side wall of the plug housing, a threaded through hole is provided on the rear cover, and a hook matched with the boss is provided on the bottom of the rear cover.

6. The zoned shielded connector of claim 1, wherein,

The side face of the plug insert body is provided with an elastic buckle, the elastic buckle is provided with a protruding block, and the inner side wall of the plug shell is provided with an inner groove matched with the protruding block;

the inner side wall of the base shell is provided with a base boss, and the side surface of the base insert body is provided with a base clamping hook matched with the base boss.