CN111029839B - High-voltage large-current shielding wire connector - Google Patents
High-voltage large-current shielding wire connector Download PDFInfo
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- CN111029839B CN111029839B CN201911356596.8A CN201911356596A CN111029839B CN 111029839 B CN111029839 B CN 111029839B CN 201911356596 A CN201911356596 A CN 201911356596A CN 111029839 B CN111029839 B CN 111029839B
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- 238000007789 sealing Methods 0.000 claims abstract description 162
- 238000002788 crimping Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004512 die casting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a high-voltage large-current shielding wire connector which comprises a wire connector shell, a tail cover, a first sealing ring, a shielding contactor, a shielding crimping sleeve, a second sealing ring and a shielding conducting piece, wherein the first sealing ring is clamped between the tail cover and the wire connector shell, the shielding contactor is arranged inside the wire connector shell, the shielding crimping sleeve and the second sealing ring are arranged between the shielding contactor and the wire connector shell, the shielding conducting piece is positioned between the shielding contactor and the wire connector shell and is in contact with the shielding contactor and the wire connector shell, the shielding contactor is provided with a shielding crimping area, and the shielding crimping sleeve is subjected to cold pressing processing on the shielding crimping area and the shielding contactor so as to connect a cable shielding layer of a shielding cable with the shielding contactor. According to the high-voltage large-current shielding wire connector, the first sealing ring and the second sealing ring are arranged to be matched for sealing, so that substances in electrical equipment can be prevented from leaking into the wire connector, and the sealing effect is improved.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a high-voltage high-current shielding wire connector.
Background
The high-voltage wire connector is widely applied to pure electric vehicles and hybrid electric vehicles, such as motor controllers, driving motors, power battery packs and the like. Five to eight high-current high-voltage wire connectors are used in the whole vehicle of the high-current high-voltage loops, and the number of plug-in units is large. At present general formula high voltage heavy current connector of inserting soon is because structural design is unreasonable, has the problem of sealed effect difference and shielding effect, has the electrical equipment of material such as fluid to inside and can not prevent that the material from revealing inside the connector.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a high-voltage large-current shielding wire connector, aiming at improving the sealing effect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: high-voltage large-current shielding wire connector comprises a wire connector shell, a tail cover, a sleeve, a first sealing ring, a shielding contactor, a shielding crimping sleeve, a second sealing ring, a shielding conducting piece, a shielding pressing connection sleeve and a shielding pressing connection piece, wherein the tail cover and the sleeve are connected with the wire connector shell, the tail cover and the sleeve are arranged on the shielding cable, the sleeve is arranged on the shielding cable, the first sealing ring is clamped between the tail cover and the wire connector shell, the shielding contactor, the shielding pressing connection sleeve and the second sealing ring are arranged inside the wire connector shell, the shielding conducting piece is arranged between the shielding contactor and the wire connector shell and is in contact with the shielding contactor and the wire connector shell, the shielding contactor and the shielding pressing connection sleeve are in cold pressing processing with the shielding contactor in the shielding pressing connection area, and the cable shielding layer of the shielding cable is connected with the shielding contactor.
The inner circle surface of the first sealing ring is attached to the outer circle surface of the outer insulating layer of the shielding cable, the inner circle surface of the second sealing ring is attached to the outer circle surface of the inner insulating layer of the shielding cable, and the cable shielding layer is located between the outer insulating layer and the inner insulating layer.
The first seal ring and the second seal ring are respectively located at two opposite ends of the wire connector housing.
The shielding conduction piece is a ring-shaped spiral spring sleeved on the shielding contactor, and the shielding contactor is provided with a groove for embedding the shielding conduction piece.
The shielding contactor comprises a first shielding contact part and a second shielding contact part, the second shielding contact part is a shielding crimping area, the shielding conducting piece is sleeved on the first shielding contact part, and the outer diameter of the first shielding contact part is larger than that of the second shielding contact part.
The shielding crimping sleeve comprises a sleeve part and a flange part connected with the sleeve part, the outer diameter of the flange part is larger than that of the sleeve part, the flange part is positioned between the sleeve part and the first sealing ring, and the inner circular surface of the sleeve part is attached to the outer insulating layer of the shielding cable and the outer circular surface of the cable shielding layer.
The high-voltage high-current shielding wire connector further comprises a check ring connected with the wire connector shell and used for limiting the second sealing ring, and the second sealing ring is located between the shielding contactor and the check ring.
The retainer ring is connected with the connector shell in a clamping mode.
According to the high-voltage large-current shielding wire connector, the first sealing ring and the second sealing ring are arranged to be matched for sealing, so that substances in electrical equipment can be prevented from leaking into the wire connector, and the sealing effect is improved.
Drawings
FIG. 1 is an exploded view of the high voltage high current shielded connector of the present invention;
FIG. 2 is a schematic cross-sectional view of the high voltage high current shielded connector of the present invention in a wired condition;
FIG. 3 is a schematic view of a dual seal installation position;
FIG. 4 is a shielded contactor shaft schematic view;
fig. 5 is a front view and a cross-sectional view of the shield contact of the present invention;
FIG. 6 is a schematic view of the structure of the shield crimp sleeve;
FIG. 7 is a schematic view of the retainer ring;
FIG. 8 is a sectional view of the retainer ring assembled;
the labels in the above figures are: 1. a wiring terminal; 2. a retainer ring; 3. a third seal ring; 4. a connector housing; 5. a second seal ring; 6. a shield conductive member; 7. a shielding contactor; 701. a first shield contact portion; 702. a second shield contact; 703. a groove; 8. a shielding crimping sleeve; 801. a sleeve portion; 802. a flange portion; 9. a first seal ring; 10. a tail cover; 11. a shielded cable; 12. an outer insulating layer; 13. a cable shielding layer; 14. an inner insulating layer; 15. and (5) buckling.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 to 8, the present invention provides a high-voltage large-current shielded wire connector, which comprises a wire connector housing 4, a tail cover 10 connected with the wire connector housing 4 and sleeved on a shielded cable, a first seal ring 9 sleeved on the shielded cable and clamped between the tail cover 10 and the wire connector housing 4, a shielding contactor 7 arranged inside the wire connector housing 4, a shielding crimping sleeve 8 and a second seal ring 5, and a shielding conduction piece 6 located between the shielding contactor 7 and the wire connector housing 4 and contacted with the shielding contactor 7 and the wire connector housing 4, wherein the shielding contactor 7 and the shielding crimping sleeve 8 are located between the first seal ring 9 and the second seal ring 5, the first seal ring 9 and the second seal ring 5 are located between the shielded cable and the wire connector housing 4, the shielding contactor 7 has a shielding crimping region, the shielding crimping sleeve 8 is processed with the shielding contactor 7 in the shielding crimping region, to connect the cable shield of the shielded cable with the shield contact 7.
Specifically, as shown in fig. 1 to 6, the connector housing 4 has a hollow structure with both ends open, and the connector housing 4 is formed by die casting an aluminum alloy material. The tail cover 10 is sleeved on the shielded cable, the tail cover 10 is also of a structure with two open ends and hollow inside, and the tail cover 10 is fixedly connected with the connector housing 4. The first sealing ring 9 and the second sealing ring 5 are respectively positioned at two opposite ends of the wire connector shell 4, and the first sealing ring 9 and the second sealing ring 5 are used for sealing two end openings of the wire connector shell 4. First sealing washer 9 and second sealing washer 5 are the ring structure, first sealing washer 9 and 5 covers of second sealing washer are located on the shielded cable, the interior disc of first sealing washer 9 and the laminating of the outer disc of shielded cable's outer insulating layer, the interior disc of second sealing washer 5 and the laminating of the outer disc of shielded cable's inner insulating layer, the cable shielding layer is located between outer insulating layer and the inner insulating layer, shielded cable's inner insulating layer parcel is on the conductor, the cable shielding layer parcel is on the inner insulating layer, the outer insulating layer parcel is on the cable shielding layer.
As shown in fig. 1 to 3, the first sealing ring 9 includes a first sealing portion sleeved on the shielded cable and a flange connected to the first sealing portion and sandwiched between the tail cover 10 and the connector housing 4, the flange extends toward the outside of the first sealing portion, and the flange contacts with the end face of the connector housing 4. The first sealing part is a cylinder with two openings at two ends and hollow inside, a first outer bulge which protrudes outwards and is used for being in contact with the inner circular surface of the connector housing 4 is arranged on the outer circular surface of the first sealing part, and a first inner bulge which protrudes inwards and is used for being in contact with the outer circular surface of the outer insulating layer of the shielding cable is arranged on the inner circular surface of the first sealing part. The flanging is of a circular ring-shaped structure extending along the whole circumferential direction on the outer circular surface of the first sealing portion, extends out along the radial direction of the first sealing portion towards the outer side of the first sealing portion, and is arranged at one axial end of the first sealing portion. The first outer bulges are arranged in a plurality of numbers and are distributed in an equidistant way along the axial direction of the first sealing part, all the first outer bulges are positioned at the same side of the flanging, the first outer bulges are in a circular ring-shaped structure extending along the whole circumferential direction on the outer circular surface of the first sealing part, the outer diameter of the flanging is larger than that of the first outer bulges, the first outer bulges extend out towards the outer side of the first sealing part along the radial direction of the first sealing part, and the cross section of the first outer protrusion is triangular (the cross section is a section parallel to the axis of the first outer protrusion), the first outer protrusion is positioned inside the connector housing 4, the tip of the first outer protrusion (the tip is the part of the first outer protrusion farthest from the axis of the sealing ring) is contacted with the inner circular surface of the connector housing 4, a groove is formed between two axially adjacent first outer protrusions, and the groove is a V-shaped groove. The first inner bulge is provided with a plurality of first inner bulges, all the first inner bulges are sequentially arranged along the axial direction of the first sealing part and are distributed at equal intervals, the first inner bulge is a circular ring-shaped structure extending along the whole circumferential direction on the inner circular surface of the first sealing part, the cross section of the first inner bulge is triangular (the cross section is a section parallel to the axis of the first inner bulge), the first inner bulge extends out towards the inside of the first sealing part along the radial direction of the first sealing part, the tip end of the first inner bulge (the tip end is the part of the first inner bulge, which is farthest away from the axis of the sealing ring) is contacted with the outer circular surface of the shielding cable, and a groove is formed between two axially adjacent first inner bulges and is a V-shaped groove. The design has the turn-ups on the first sealing washer 9, and after the assembly entered connector housing 4, the end face contact of turn-ups and casing, and the tail-hood 10 lock extrudees the turn-ups after to connector housing 4 and forms effective sealed, and this structural design is that single sealing washer realizes simultaneously radially and terminal surface dual seal, effectively reduces sealed inefficacy risk, improves sealing performance.
As shown in fig. 1 to 3, the second sealing ring 5 includes a second sealing portion, a second outer protrusion disposed on an outer circumferential surface of the second sealing portion, and a second inner protrusion disposed on an inner circumferential surface of the second sealing portion, the second sealing portion is a hollow cylinder with openings at both ends, the second outer protrusion protrudes toward an outer side of the second sealing portion, the second outer protrusion contacts with an inner circumferential surface of the connector housing 4, the second inner protrusion protrudes toward an inner side of the second sealing portion, and the second inner protrusion contacts with an outer circumferential surface of an inner insulating layer of the shielded cable. The second outer bulges are arranged in a plurality of numbers, all the second outer bulges are sequentially arranged along the axial direction of the second sealing part and are distributed at equal intervals, the second outer bulges are of circular ring structures extending along the whole circumferential direction on the outer circular surface of the second sealing part, the second outer bulges extend out towards the outer side of the second sealing part along the radial direction of the second sealing part, the cross sections of the second outer bulges are triangular (the cross sections are sections parallel to the axial line of the second outer bulges), the second outer bulges are positioned in the wire connector shell 4, the tip ends of the second outer bulges (the tip ends are the parts, farthest away from the axial line of the sealing ring, of the second outer bulges) are contacted with the inner circular surface of the wire connector shell 4, a groove is formed between two second outer bulges adjacent in the axial direction, and the groove is a V-shaped groove. The second inner bulge is provided with a plurality of second inner bulges, all the second inner bulges are sequentially arranged along the axial direction of the second sealing part and are distributed at equal intervals, the second inner bulge is a circular ring-shaped structure extending along the whole circumferential direction on the inner circular surface of the second sealing part, the cross section of the second inner bulge is triangular (the cross section is a section parallel to the axis of the second inner bulge), the second inner bulge extends out towards the inside of the second sealing part along the radial direction of the second sealing part, the tip of the second inner bulge (the tip is the part of the second inner bulge, which is farthest away from the axis of the sealing ring) is contacted with the outer circular surface of the shielding cable, a groove is formed between two axially adjacent second inner bulges, and the groove is a V-shaped groove.
By arranging the first sealing ring 9 and the second sealing ring 5, the second sealing ring 5 can still play a sealing role after the sealing of the first sealing ring 9 fails. Meanwhile, for special application occasions, the wire connector can prevent substances in the electrical equipment from leaking into the wire connector through the second sealing ring 5, so that the sealing effect is improved, and the shielding effect is further improved.
As shown in fig. 1 and 2, when assembling the high-voltage high-current shielded connector, the first sealing ring 9 is sleeved into the shielded cable; according to traditional technology with the outer insulation layer and the interior insulation layer of shielded cable peel off, make cable shielding layer and conductor expose, then with shielding crimping cover 8 from the cable shielding layer peel off the end and penetrate, penetrate shielding contactor 7 again and place the cable shielding layer in between shielding crimping cover 8 and shielding contactor 7, arrange crimping district c in the crimping mould after the dress, link to each other cable shielding layer and shielding contactor 7 through colding pressing. And then, sleeving a second sealing ring 5 on the shielded cable, penetrating the sleeved shielded cable and the whole pressed and connected cable into a connector shell 4, pressing and connecting the wiring terminal 1, and sequentially sleeving a third sealing ring 3 and a retainer ring 2 on the mounting surface from the wiring terminal 1 after pressing and connecting.
As shown in fig. 1, 2, 4 and 5, the shielding conductive member 6 is a ring-shaped coil spring sleeved on the shielding contact 7, and the shielding contact 7 has a groove 703 for the shielding conductive member 6 to be inserted into. Through setting up annular coil spring with shielding contactor 7 and 4 intercommunications of connector housing, guarantee electrically conductive, form complete shielding switch-on connection, annular coil spring is the spring coil of a body structure, and is intensive with shielding contactor 7 and connector housing 4's contact point, is more than 30 times of traditional punching press shell fragment formula contact, and contact resistance is little, and annular coil spring can produce elastic deformation moreover, and anti-seismic performance is good, and is a lot of than traditional shell fragment formula improvement to the electromagnetic shield effect of high frequency channel.
As shown in fig. 1, 2, 4 to 6, the shielding contactor 7 includes a first shielding contact part 701 and a second shielding contact part 702, the shielding conductive member 6 is sleeved on the first shielding contact part 701, and an outer diameter of the first shielding contact part 701 is larger than an outer diameter of the second shielding contact part 702. The first shielding contact part 701 and the second shielding contact part 702 are both in a circular ring structure, the first shielding contact part 701 and the second shielding contact part 702 are coaxially arranged, the first shielding contact part 701 is fixedly connected with one end of the second shielding contact part 702, the inner diameter of the first shielding contact part 701 is the same as that of the second shielding contact part 702, and the inner circular surfaces of the first shielding contact part 701 and the second shielding contact part 702 are attached to the outer circular surface of the inner insulating layer of the shielding cable. The shielding crimping sleeve 8 comprises a sleeve portion 801 and a flange portion 802 connected with the sleeve portion 801, the sleeve portion 801 and the flange portion 802 are both in a circular ring structure, the flange portion 802 is fixedly connected with one end of the sleeve portion 801, the flange portion 802 is coaxial with the sleeve portion 801, the inner diameter of the flange portion 802 is the same as the inner diameter of the sleeve portion 801, the outer diameter of the flange portion 802 is larger than the outer diameter of the sleeve portion 801, the flange portion 802 is located between the sleeve portion 801 and the first sealing ring 9, and the inner circular surface of the sleeve portion 801 is attached to the outer insulating layer of the shielding cable and the outer circular surface of the shielding layer of the cable. One section of cable shielding layer of the shielded cable is exposed from the outer insulating layer, the length of the sleeve part 801 is larger than that of the second shielding contact part 702, the second shielding contact part 702 is a shielding compression joint area, the inner circular surface of the sleeve part 801 is attached to the cable shielding layer, the sleeve part 801 and the second shielding contact part 702 are processed by cold pressing, the cable shielding layer is connected with the second shielding contact part 702 by cold pressing, the shielding contactor 7 is connected with the connector metal shell through the annular spiral spring on the shielding contactor, and the cable shielding layer is connected with the connector metal shell to realize the connection of the cable shielding layer and the connector shell 4.
As shown in fig. 1, 2, and 4 to 6, the groove 703 is an annular groove extending in the entire circumferential direction on the outer circumferential surface of the first shield contact portion 701. The sleeve portion 801 is a cylinder with two open ends and a hollow interior, the flange portion 802 is a circular ring-shaped structure extending along the entire circumferential direction on the outer circumferential surface of the sleeve portion 801, the flange portion 802 extends along the radial direction of the sleeve portion 801 toward the outside of the sleeve portion 801, the flange portion 802 is disposed at one axial end of the sleeve portion 801, and the flange portion 802 is located between the first seal ring 9 and the sleeve portion 801. The shielding crimping sleeve 8 of the structure is matched with the shielding contactor 7, a cable shielding net can be pressed, the shielding effect is ensured, and the arrangement of the groove 703 simultaneously ensures that the annular spiral spring and the shielding contactor 7 have good conductive capacity.
As shown in fig. 1, 2, 7 and 8, the high-voltage high-current shielded wire connector of the present invention further includes a retainer ring 2 connected to the wire connector housing 4 and used for limiting the second seal ring 5, so as to prevent the second seal ring 5 from moving axially, and the second seal ring 5 is located between the shield contact 7 and the retainer ring 2. The retaining ring 2 is of a circular ring structure, the retaining ring 2 is sleeved on the shielded cable, and the inner circular surface of the retaining ring 2 is attached to the outer circular surface of the inner insulating layer of the shielded cable.
Preferably, as shown in fig. 7 and 8, the retainer ring 2 is connected with the connector housing 4 in a clamping manner, so that the connector housing is convenient to disassemble and assemble. Be equipped with a plurality of buckles 15 on the retaining ring 2, be equipped with the draw-in groove that lets 15 imbeds of buckle on the connector housing 4, during the assembly, with the one end of retaining ring 2 joint at connector housing 4.
As shown in fig. 1 and 2, the high-voltage large-current shielding wire connector further includes a third sealing ring 3, the third sealing ring 3 and a retainer ring 2 are disposed at the same end of the wire connector housing 4, and the retainer ring 2 is used for limiting the third sealing ring 3 and preventing the third sealing ring 3 from falling off and moving. The third sealing ring 3 is used for being clamped between the wire connector shell 4 and high-voltage electrical equipment on a vehicle, the end part of the wire connector shell 4 is sleeved with the third sealing ring 3, the wire connector shell 4 is connected with the high-voltage electrical equipment through a bolt, and the third sealing ring 3 is clamped between a flange block on the wire connector shell 4 and the high-voltage electrical equipment, so that the waterproof and dustproof effects are realized, and the sealing performance between the wire connector and the high-voltage electrical equipment is improved.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (1)
1. High-voltage large-current shielding wire connector comprises a wire connector shell, a tail cover and a first sealing ring, wherein the tail cover and the sleeve are connected with the wire connector shell and are sleeved on a shielding cable, and the first sealing ring is clamped between the tail cover and the wire connector shell and is characterized in that: the shielding connector comprises a connector shell and is characterized by further comprising a shielding contactor, a shielding crimping sleeve and a second sealing ring which are arranged inside the connector shell, and a shielding conducting piece which is positioned between the shielding contactor and the connector shell and is in contact with the shielding contactor and the connector shell, wherein the shielding contactor and the shielding crimping sleeve are positioned between the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring are positioned between a shielding cable and the connector shell, the shielding contactor is provided with a shielding crimping area, and the shielding crimping sleeve is subjected to cold pressing processing with the shielding contactor in the shielding crimping area so as to connect a cable shielding layer of the shielding cable with the shielding contactor;
the wire connector shell is of a structure with two open ends and hollow inside, and is formed by die casting of aluminum alloy materials; the tail cover is sleeved on the shielding cable, the tail cover is also of a structure with openings at two ends and a hollow interior, and the tail cover is fixedly connected with the connector shell; the first sealing ring and the second sealing ring are respectively positioned at two opposite ends of the wire connector shell and are used for sealing openings at two ends of the wire connector shell; the first sealing ring and the second sealing ring are both of circular structures, the first sealing ring and the second sealing ring are sleeved on the shielded cable, the inner circular surface of the first sealing ring is attached to the outer circular surface of the outer insulating layer of the shielded cable, the inner circular surface of the second sealing ring is attached to the outer circular surface of the inner insulating layer of the shielded cable, the cable shielding layer is positioned between the outer insulating layer and the inner insulating layer, the inner insulating layer of the shielded cable is wrapped on the conductor, the cable shielding layer is wrapped on the inner insulating layer, and the outer insulating layer is wrapped on the cable shielding layer;
the first sealing ring comprises a first sealing part sleeved on the shielding cable and a flanging which is connected with the first sealing part and clamped between the tail cover and the connector shell, the flanging extends out towards the outer side of the first sealing part, and the flanging is contacted with the end face of the connector shell; the first sealing part is a cylinder with two open ends and hollow inside, a first outer bulge which protrudes outwards and is used for contacting with the inner circular surface of the connector shell is arranged on the outer circular surface of the first sealing part, and a first inner bulge which protrudes inwards and is used for contacting with the outer circular surface of the outer insulating layer of the shielded cable is arranged on the inner circular surface of the first sealing part; the flanging is of a circular ring-shaped structure extending along the whole circumferential direction on the outer circular surface of the first sealing part, the flanging extends out along the radial direction of the first sealing part and towards the outer side of the first sealing part, and the flanging is arranged at one axial end of the first sealing part; the first outer bulge is provided with a plurality of three first outer bulges which are sequentially arranged along the axial direction of the first sealing part and are distributed at equal intervals, all the first outer bulges are positioned on the same side of the flange, the first outer bulge is of a circular ring-shaped structure extending along the whole circumferential direction on the outer circular surface of the first sealing part, the outer diameter of the flange is larger than that of the first outer bulge, the first outer bulge extends out towards the outer side of the first sealing part along the radial direction of the first sealing part, the cross section of the first outer bulge is triangular, the first outer bulge is positioned in the connector shell, the tip end of the first outer bulge is contacted with the inner circular surface of the connector shell, a groove is formed between two axially adjacent first outer bulges, and the groove is a V-shaped groove;
the first inner bulge is provided with a plurality of first inner bulges, all the first inner bulges are sequentially arranged along the axial direction of the first sealing part and are distributed at equal intervals, the first inner bulge is of a circular ring-shaped structure extending along the whole circumferential direction on the inner circular surface of the first sealing part, the cross section of the first inner bulge is triangular, the first inner bulge extends towards the inside of the first sealing part along the radial direction of the first sealing part, the tip end of the first inner bulge is contacted with the outer circular surface of the shielding cable, a groove is formed between two axially adjacent first inner bulges, and the groove is a V-shaped groove; the first sealing ring is provided with a flange, after the first sealing ring is assembled into the connector shell, the flange is contacted with the end face of the shell, and the tail cover is buckled to the connector shell and then extrudes the flange to form sealing;
the second sealing ring comprises a second sealing part, a second outer bulge arranged on the outer circular surface of the second sealing part and a second inner bulge arranged on the inner circular surface of the second sealing part, the second sealing part is a cylinder with two open ends and hollow inside, the second outer bulge protrudes towards the outer side of the second sealing part, the second outer bulge is in contact with the inner circular surface of the wire connector shell, the second inner bulge protrudes towards the inner side of the second sealing part, and the second inner bulge is in contact with the outer circular surface of the inner insulating layer of the shielded cable;
the second outer bulges are arranged in a plurality of numbers, all the second outer bulges are sequentially arranged along the axial direction of the second sealing part and are distributed at equal intervals, the second outer bulges are of circular ring structures extending along the whole circumferential direction on the outer circular surface of the second sealing part, the second outer bulges extend towards the outer side of the second sealing part along the radial direction of the second sealing part, the cross sections of the second outer bulges are triangular, the second outer bulges are positioned in the wire connector shell, the tip ends of the second outer bulges are contacted with the inner circular surface of the wire connector shell, a groove is formed between every two axially adjacent second outer bulges, and the groove is a V-shaped groove; the second inner bulges are arranged in a plurality of numbers, all the second inner bulges are sequentially arranged along the axial direction of the second sealing part and are distributed at equal intervals, the second inner bulges are of circular ring structures extending along the whole circumferential direction on the inner circular surface of the second sealing part, the cross sections of the second inner bulges are triangular, the second inner bulges extend towards the inner part of the second sealing part along the radial direction of the second sealing part, the tip ends of the second inner bulges are contacted with the outer circular surface of the shielding cable, a groove is formed between two axially adjacent second inner bulges, and the groove is a V-shaped groove;
when assembling the high-voltage high-current shielding wire connector, sleeving the first sealing ring into the shielding cable; stripping an outer insulating layer and an inner insulating layer of a shielded cable according to a traditional process to expose a cable shielding layer and a conductor, then penetrating a shielding crimping sleeve from a stripping end of the cable shielding layer, penetrating a shielding contactor and placing the cable shielding layer between the shielding crimping sleeve and the shielding contactor, placing a crimping area on a crimping mold after assembling, and connecting the cable shielding layer with the shielding contactor by cold pressing; then, a second sealing ring is sleeved on the shielded cable, the sleeved cable and the whole pressed and connected cable penetrate into the connector shell, then the wiring terminal is pressed, and a third sealing ring and a retainer ring are sequentially sleeved on the mounting surface from the wiring terminal after the pressed and connected cable is pressed and connected;
the shielding conduction piece is an annular spiral spring sleeved on the shielding contactor, and the shielding contactor is provided with a groove for embedding the shielding conduction piece; the shielding contactor is communicated with the connector shell through the annular spiral spring, so that the conduction is ensured, and the complete shielding conduction connection is formed;
the shielding contactor comprises a first shielding contact part and a second shielding contact part, the shielding conducting piece is sleeved on the first shielding contact part, and the outer diameter of the first shielding contact part is larger than that of the second shielding contact part; the first shielding contact part and the second shielding contact part are both of circular structures and are coaxially arranged, the first shielding contact part is fixedly connected with one end of the second shielding contact part, the inner diameter of the first shielding contact part is the same as that of the second shielding contact part, and the inner circular surfaces of the first shielding contact part and the second shielding contact part are attached to the outer circular surface of the inner insulating layer of the shielding cable; the shielding crimping sleeve comprises a sleeve part and a flange part connected with the sleeve part, the sleeve part and the flange part are both of circular ring structures, the flange part is fixedly connected with one end of the sleeve part and is coaxial with the sleeve part, the inner diameter of the flange part is the same as that of the sleeve part, the outer diameter of the flange part is larger than that of the sleeve part and is positioned between the sleeve part and the first sealing ring, and the inner circular surface of the sleeve part is attached to the outer insulating layer of the shielding cable and the outer circular surface of the shielding layer of the cable; a section of cable shielding layer of the shielded cable is exposed out of the outer insulating layer, the length of the sleeve part is greater than that of the second shielding contact part, the second shielding contact part is a shielding compression joint area, the inner circular surface of the sleeve part is attached to the cable shielding layer, the sleeve part and the second shielding contact part are subjected to cold pressing, the cable shielding layer is connected with the second shielding contact part through cold pressing, and the shielding contactor is used for connecting the cable shielding layer with the connector metal shell through the annular spiral spring on the shielding contactor to realize the connection of the cable shielding layer and the connector shell;
the groove is an annular groove extending along the whole circumferential direction on the outer circular surface of the first shielding contact part; the sleeve part is a cylinder with two open ends and hollow inside, the flange part is a circular ring structure extending along the whole circumferential direction on the outer circular surface of the sleeve part, the flange part extends out towards the outer side of the sleeve part along the radial direction of the sleeve part, the flange part is arranged at one axial end of the sleeve part, and the flange part is positioned between the first sealing ring and the sleeve part;
the high-voltage large-current shielding wire connector also comprises a check ring which is connected with the wire connector shell and used for limiting a second sealing ring, so that the second sealing ring is prevented from moving axially, and the second sealing ring is positioned between the shielding contactor and the check ring; the check ring is of an annular structure, the check ring is sleeved on the shielded cable, and the inner circular surface of the check ring is attached to the outer circular surface of the inner insulating layer of the shielded cable;
the retainer ring is connected with the wire connector shell in a clamping mode, a plurality of buckles are arranged on the retainer ring, a clamping groove for embedding the buckles is formed in the wire connector shell, and the retainer ring is clamped at one end of the wire connector shell during assembly;
the high-voltage large-current shielding wire connector further comprises a third sealing ring, the third sealing ring and a check ring are arranged at the same end of the wire connector shell, and the check ring is used for limiting the third sealing ring and preventing the third sealing ring from falling off and moving; the third sealing ring is used for being clamped between the connector shell and high-voltage electrical equipment on a vehicle, the end part of the connector shell is sleeved with the third sealing ring, the connector shell is connected with the high-voltage electrical equipment through bolts, and the third sealing ring is clamped between a flange block on the connector shell and the high-voltage electrical equipment.
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