CN117374671B - Cable shielding connection structure for new energy vehicle and manufacturing method - Google Patents
Cable shielding connection structure for new energy vehicle and manufacturing method Download PDFInfo
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- CN117374671B CN117374671B CN202311681168.9A CN202311681168A CN117374671B CN 117374671 B CN117374671 B CN 117374671B CN 202311681168 A CN202311681168 A CN 202311681168A CN 117374671 B CN117374671 B CN 117374671B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000002788 crimping Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
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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]
- H01R13/6581—Shield structure
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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
- H01R13/02—Contact members
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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
-
- 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
- H01R13/5205—Sealing means between cable and housing, e.g. grommet
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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
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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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
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
- H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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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
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a cable shielding connection structure for a new energy vehicle and a manufacturing method, and belongs to the technical field of wire harnesses. Wherein, new forms of energy automobile-used cable shielding connection structure includes: a wire harness, a non-shielded connector and a shield connected to an end of the wire harness; the wire harness comprises a wire core, an inner insulating layer, a shielding layer and an outer insulating layer, wherein the inner insulating layer, the shielding layer and the outer insulating layer are sequentially wrapped on the outer wall of the wire core from inside to outside, an annular opening is formed in the outer wall, close to the non-shielding connector, of the outer insulating layer, the shielding layer is partially exposed through the annular opening, and a shielding ring is connected between the exposed shielding layer and the outer insulating layer in a sealing manner; the shield is connected to the shield ring and covers the unshielded connector. The shielding ring can protect the shielding layer, reduce the influence of resistance on the potential and better fix the wire harness; the design of the shielding ring and the shielding device improves the grounding effect of the non-shielding connector, and the connection part of the shielding ring and the shielding device and the equipment can wrap electromagnetic interference signals of the cable.
Description
Technical Field
The invention relates to the technical field of wire harnesses, in particular to a cable shielding connection structure for a new energy vehicle and a manufacturing method.
Background
Because of adopting pure electric driving and control scheme in the new energy vehicle, so can not avoid involving the problem of electromagnetic compatibility (EMC) in the design, the shielding earthing effect of pencil has very big influence to electromagnetic compatibility (EMC) test's result, there are many high-voltage connectors that do not have the shielding layer inside on the market to be connected with the shell at present, perhaps the connection form of the equipment of using the line nose connection no shielding layer alone.
Because of this form of connection, there are three ways of handling currently in designing such harnesses:
1. the single end of the wire harness is grounded, and the connector which is inconvenient to be grounded by the shielding layer is not grounded;
2. both ends of the wire harness are not grounded, and the shielding layer is not exposed;
3. the harness peels the shield off and draws a wire out to ground at a connector that is inconvenient to shield to ground.
The three modes have a certain protection effect due to the existence of the shielding layer of the wire harness, but the grounding effect of the shielding layer is poor, so that common-mode interference current cannot be well led into the ground; and because the connector is unshielded, it cannot encapsulate the electromagnetic interference (EMI) signals of the cable at the connection with the device.
Disclosure of Invention
The invention aims to provide a cable shielding connection structure for a new energy vehicle and a manufacturing method thereof, which are used for solving the problems that when the existing non-shielding connector is used on the new energy vehicle, the grounding effect of a shielding layer is poor and the electromagnetic interference signals of a cable cannot be wrapped at the connection part of the shielding layer and equipment.
The technical scheme for solving the technical problems is as follows:
a cable shielding connection structure for a new energy vehicle comprises: a wire harness, a non-shielded connector and a shield connected to an end of the wire harness;
the wire harness comprises a wire core, an inner insulating layer, a shielding layer and an outer insulating layer, wherein the inner insulating layer, the shielding layer and the outer insulating layer are sequentially wrapped on the outer wall of the wire core from inside to outside, an annular opening is formed in the outer wall, close to the non-shielding connector, of the outer insulating layer, the shielding layer is partially exposed through the annular opening, and a shielding ring is connected between the exposed shielding layer and the outer insulating layer in a sealing manner;
the shield is connected to the shield ring and covers the unshielded connector.
According to the invention, the annular opening is formed in the outer wall of the outer insulating layer, the shielding layer is partially exposed, the shielding layer is crimped on the outer insulating layer by the shielding ring and is wrapped at the same time, and as part of the wire harness of the existing non-shielding connector is exposed in the air, the shielding layer can be protected by the shielding ring, meanwhile, the influence of resistance on potential is reduced, and the wire harness can be better fixed; the shielding device is connected with the shielding ring, and the shielding ring is designed to increase the outer diameter of the contact position of the shielding device, keep good contact and fix the wire harness to avoid shaking; thus, when the wire harness is used, the shielding ring and the shielding device design improve the grounding effect of the non-shielding connector, and the connection part of the shielding ring and the equipment can wrap electromagnetic interference signals of the cable.
Further, the end of the wire core extends out of the inner insulating layer, the end of the inner insulating layer extends out of the shielding layer, and the wire core and the inner insulating layer extend into the unshielded connector and are connected with the unshielded connector.
Further, a first heat shrinkage pipe is arranged on the outer wall of the end part of the shielding ring, which is close to the non-shielding connector, and the inner side wall at one end of the first heat shrinkage pipe is shrunk to the outer side wall of the inner insulating layer;
the shielding ring is kept away from the tip outer wall of non-shielding connector and is equipped with the second pyrocondensation pipe, and the inside wall shrink of second pyrocondensation pipe one end to the lateral wall of outer insulating layer, the other end inside wall shrink of second pyrocondensation pipe to the lateral wall of shielding ring.
According to the invention, the heat shrink tubes are arranged at the two ends of the shielding ring, so that water can be further effectively prevented from entering the shielding layer from the gaps, the shielding layer is prevented from being oxidized by water inflow, and the shielding efficiency of the shielding layer is prevented from being influenced.
Further, the shielding device comprises a connecting ring with a notch, two connecting strips which are respectively arranged at the notch position of the connecting ring and extend along the outer side of the connecting ring, and a shielding cover which is arranged at the side edge of the connecting ring, wherein the two connecting strips correspond to each other, the shielding cover is provided with an opening communicated with the notch of the connecting ring, and the connecting ring is sleeved on the outer wall of the shielding ring;
the two connecting strips are connected with each other and fasten the connecting ring on the shielding ring, and are arranged outside the non-shielding connector through the shielding cover.
According to the invention, the shielding device is arranged at the tail end of the wire harness, so that the vibration of the vehicle is prevented from being conducted to the tail end of the wire harness, and the situation that the tail end of the wire harness and the tail end of the unshielded connector are in gaps so as to influence the waterproof grade is avoided; and the purpose of the shielding cover can cover the cable without the shielding layer and the non-shielding connector, thereby effectively ensuring that electromagnetic interference signals are not exposed.
Further, the two connecting strips are parallel to each other.
Further, the end part of the connecting strip, which is close to the connecting ring, is provided with a tightening hole, and the end part of the connecting strip, which is far away from the connecting ring, is provided with a connecting hole.
Further, the cross-sectional area of the shield case increases gradually in a direction away from the connecting ring.
Further, the cross section of the shielding ring is in an I-shaped structure, and annular steps matched with the outer walls of the outer insulating layers are respectively formed on the inner walls of the two ends of the shielding ring.
Further, the shielding ring is made of a metal material with an electromagnetic shielding function, and the shielding layer is woven by a metal wire mesh with the electromagnetic shielding function.
The invention also provides a manufacturing method of the cable shielding connection structure for the new energy vehicle, which comprises the following steps:
s1, extending the wire core and the end part of the inner insulating layer into the non-shielding connector and connecting the wire core and the inner insulating layer with the non-shielding connector, simultaneously cutting an annular opening on the outer side wall of the outer insulating layer, which is close to the non-shielding connector, and exposing a shielding layer part;
s2, crimping a shielding ring on the shielding layer of the exposed part, wherein the shielding ring extends to the outer side wall of the outer insulating layer along the two ends of the annular opening;
and S3, finally, fastening the shielding device on the outer wall of the shielding ring, and enabling the shielding device to cover the outer side of the non-shielding connector.
The invention has the following beneficial effects:
1. according to the invention, the end part of the wire harness is provided with the annular opening, the shielding ring is crimped on the outer insulating layer, and the shielding ring wraps the shielding layer; the shielding ring is designed to increase the outer diameter of the contact position of the shielding ring with the connecting ring in the shielding device, so that the shielding ring can keep good contact with the connecting ring, and meanwhile, the wire harness is fixed to avoid shaking; therefore, when the wire harness is used, the design of the shielding ring and the shielding device improves the grounding effect of the non-shielding connector, and the connection part of the shielding ring and the shielding device and equipment can wrap electromagnetic interference signals of the cable; the heat shrinkage tubes are arranged at the two ends of the shielding ring, so that water can be further effectively prevented from entering the shielding layer from the gaps, the shielding layer can be prevented from being oxidized by water inflow, and the shielding effectiveness of the shielding layer is prevented from being influenced.
2. According to the invention, the shielding device is arranged, so that the cable without the shielding layer and the non-shielding connector can be covered under the action of the shielding cover, and the electromagnetic signals inside are isolated from the outside; the connecting holes on the connecting strips can be connected with the frame, so that the shielding layer is ensured to be connected to zero potential of a vehicle body; the tightening holes can tighten the connecting ring and the shielding ring through external bolts and nuts, so that good contact is ensured.
3. The shielding device can prevent vehicle vibration from being transmitted to the tail end of the wire harness, and can prevent the tail end of the wire harness and the tail end of the unshielded connector from being in a gap, so that the waterproof grade is influenced.
4. In the field of new energy vehicles, because many parts of the vehicles are exposed, dust and moisture generated by long-time operation are mixed and accumulated on the unshielded connector, so that the unshielded connector is difficult to disassemble and overhaul, and the shielding device can also play a role in dust prevention.
Drawings
Fig. 1 is a schematic structural view of a cable shielding connection structure for a new energy vehicle;
fig. 2 is a schematic view of a harness and unshielded connector;
fig. 3 is a specific structural schematic diagram of a wire harness;
FIG. 4 is a schematic view of a structure of a shield;
fig. 5 is a schematic top view of the shield.
In the figure: 1. a wire harness; 11. a wire core; 12. an inner insulating layer; 13. a shielding layer; 14. an outer insulating layer; 141. an annular opening; 2. a non-shielded connector; 3. a shield; 31. a connecting ring; 32. a connecting strip; 33. a shield; 34. tightening the hole; 35. a connection hole; 4. a shielding ring; 41. an annular step; 5. a first heat shrinkage tube; 6. and the second heat shrinkage tube.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
As shown in fig. 1 to 3, in an embodiment of the present invention, there is provided a cable shield connection structure for a new energy vehicle, including: a wire harness 1, and a non-shielded connector 2 and a shield 3 connected to an end of the wire harness 1; the shielding device 3 is used for covering the non-shielding connector 2, so that electromagnetic interference signals of the cable can be wrapped, and shielding effectiveness of the wire harness 1 is improved.
The wire harness 1 comprises a wire core 11, and an inner insulating layer 12, a shielding layer 13 and an outer insulating layer 14 which are sequentially wrapped on the outer wall of the wire core 11 from inside to outside, wherein the end part of the wire core 11 extends out of the inner insulating layer 12, the end part of the inner insulating layer 12 extends out of the shielding layer 13, and the wire core 11 and the inner insulating layer 12 extend into the non-shielding connector 2 and are connected with the non-shielding connector 2.
The outer wall of the outer insulating layer 14, which is close to the non-shielding connector 2, is provided with an annular opening 141, the annular opening 141 exposes part of the shielding layer 13, and a shielding ring 4 is connected between the exposed shielding layer 13 and the outer insulating layer 14 in a sealing way; the shield 3 is connected to the shield ring 4 and covers the non-shielded connector 2. In the present embodiment, the annular opening 141 of the outer insulating layer 14, which is opened near the outer wall of the non-shielded connector 2, facilitates the installation of the shielding ring 4, while the shielding ring 4 is crimped on the outer walls of the outer insulating layer 14 and the shielding layer 13; the cross section of the shielding ring 4 is in an I-shaped structure, and annular steps 41 matched with the outer walls of the outer insulating layers 14 are respectively formed on the inner walls of the two ends of the shielding ring 4. The cross section of the shielding ring 4 is in an I-shaped structure, so that the shielding device 3 can be effectively prevented from falling off when being connected to the shielding ring 4; meanwhile, the shielding ring 4 is used for increasing the outer diameter size of the contact position with the shielding device 3 and keeping good contact, and meanwhile, the wire harness 1 can be fixed to avoid shaking. The inner side wall of the annular step 41 on the shielding ring 4 is contacted with the outer side wall of the outer insulating layer 14, the inner wall of the shielding ring 4 is contacted with the outer side wall of the shielding layer 13, and the opening of the annular step 41 ensures that the shielding ring 4 is not easy to move and can seal the outer insulating layer 14 and the shielding layer 13.
Specifically, in this embodiment, the inner insulating layer 12 and the outer insulating layer 14 may be made of insulating plastics or other insulating materials; the shielding ring 4 is made of a metal material with an electromagnetic shielding function, and can be made of a copper material or a silver material; the shielding layer 13 is woven by a metal wire mesh with an electromagnetic shielding function, and may be woven by copper wires, and a layer of conductive adhesive tape may be wrapped on the outer side of the copper wire mesh, which is not particularly limited herein.
As shown in fig. 3, the outer wall of the end part of the shielding ring 4, which is close to the non-shielding connector 2, is provided with a first heat shrinkage pipe 5, the inner side wall at one end of the first heat shrinkage pipe 5 is shrunk to the outer side wall of the inner insulating layer 12, and the inner side wall at the other end of the first heat shrinkage pipe 5 is shrunk to the outer side wall of the shielding ring 4; the shielding ring 4 is far away from the end outer wall of the non-shielding connector 2 and is provided with a second heat shrinkage tube 6, the inner side wall at one end of the second heat shrinkage tube 6 is shrunk to the outer side wall of the outer insulating layer 14, and the inner side wall at the other end of the second heat shrinkage tube 6 is shrunk to the outer side wall of the shielding ring 4. The first heat shrinkage tube 5 and the second heat shrinkage tube 6 can prevent water from entering between the shielding ring 4 and the shielding layer 13, so that the shielding layer 13 is prevented from being oxidized.
As shown in fig. 4 and 5, the shield 3 includes a connection ring 31 having a notch, two connection bars 32 provided at the notch positions of the connection ring 31 respectively and extending along the outside of the connection ring 31, and a shield 33 provided at the side of the connection ring 31, the two connection bars 32 being in correspondence with each other, and the two connection bars 32 being parallel to each other, the shield 33 having an opening communicating with the notch of the connection ring 31, the connection ring 31 being fitted over the outer wall of the shield ring 4; the two connection bars 32 are connected to each other and fasten the connection ring 31 to the shield ring 4, and are covered on the outside of the non-shielded connector 2 by a shield cover 33. The end part of the connecting strip 32, which is close to the connecting ring 31, is provided with a tightening hole 34; tightening holes 34 on the connection strips 32 can be matched with nuts through bolts so as to fasten the connection ring 31 and the shielding ring 4; the end of the connecting strip 32 far away from the connecting ring 31 is provided with a connecting hole 35, and the connecting hole 35 on the connecting strip 32 can be connected with the frame, so that the shielding layer 13 is ensured to be connected with a vehicle body zero potential. The cross-sectional area of the shield 33 gradually increases in a direction away from the connection ring 31, so that the cable without the shielding layer and the non-shielding connector 2 can be shielded by the shield 33 to isolate the electromagnetic signal inside from the outside. The design of the shielding device 3 can effectively prevent vehicle vibration from being conducted to the tail end of the wiring harness 1, and prevent the tail end of the wiring harness 1 and the tail end of the non-shielding connector 2 from being in a gap, so that the waterproof grade is influenced. Therefore, by the design of the shield ring 4 and the shield 3, the grounding effect of the non-shielded connector 2 is improved, and the connection part of the non-shielded connector and the equipment can wrap the electromagnetic interference signal of the cable. Since many parts of the vehicle are exposed, dust and moisture generated by long-term operation are mixed and accumulated on the non-shielded connector 2, which makes it difficult to disassemble and repair the non-shielded connector 2, the shield 3 can also function as dust.
In another embodiment of the present invention, a method for manufacturing a cable shielding connection structure for a new energy vehicle is provided, including the following steps:
s1, extending the ends of the wire core 11 and the inner insulating layer 12 into the non-shielding connector 2 and connecting the wire core and the inner insulating layer with the non-shielding connector 2, simultaneously cutting an annular opening 141 on the outer side wall of the outer insulating layer 14, which is close to the non-shielding connector 2, and exposing part of the shielding layer 13;
s2, crimping the shielding ring 4 on the shielding layer 13 of the exposed part, and extending the shielding ring 4 to the outer side wall of the outer insulating layer 14 along the two ends of the annular opening 141;
the shielding ring 4 is used for increasing the outer diameter size of the contact position, keeping good contact between the shielding device 3 and the shielding ring 4, and avoiding the shaking of the wire harness 1;
wrapping the end part of the shielding ring 4, which is close to the non-shielding connector 2, by adopting a first heat shrink tube 5, and wrapping the end part to the outer walls of the outer insulating layer 14 and the inner insulating layer 12;
the other end of the shielding ring 4 is wrapped by the second heat shrink tube 6 and is wrapped to the outer wall of the outer insulating layer 14, so that moisture can be effectively prevented from entering the shielding layer 13 from a gap of the shielding ring 4, and the shielding function of the shielding layer 13 is prevented from being influenced;
s3, finally, fastening the shielding device 3 on the outer wall of the shielding ring 4, and enabling the shielding device 3 to cover the outer side of the non-shielding connector 2; by adopting bolts and nuts to be matched with the two connecting strips 32, the connecting ring 31 and the shielding ring 4 are tightened, and the connecting holes 35 on the connecting strips 32 can be connected with the frame.
The design of the shielding device 3 can effectively prevent vehicle vibration from being conducted to the tail end of the wire harness 1, and prevent the tail end of the wire harness 1 and the tail end of the non-shielding connector 2 from being in a gap so as to influence the waterproof grade; the grounding effect of the non-shielding connector 2 is improved, and the electromagnetic interference signals of the cable can be wrapped at the joint of the non-shielding connector and equipment.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The utility model provides a new forms of energy automobile-used cable shielding connection structure which characterized in that includes:
a wire harness (1), and a non-shielded connector (2) and a shield (3) connected to an end of the wire harness (1);
the wire harness (1) comprises a wire core (11), and an inner insulating layer (12), a shielding layer (13) and an outer insulating layer (14) which are sequentially wrapped on the outer wall of the wire core (11) from inside to outside, wherein an annular opening (141) is formed in the outer insulating layer (14) close to the outer wall of the non-shielding connector (2), the annular opening (141) enables the shielding layer (13) to be partially exposed, and a shielding ring (4) is connected between the exposed shielding layer (13) and the outer insulating layer (14) in a sealing mode;
the shielding device (3) is connected with the shielding ring (4) and covers the non-shielding connector (2);
the cross section of the shielding ring (4) is in an I-shaped structure, and annular steps (41) matched with the outer wall of the outer insulating layer (14) are respectively formed in the inner walls of the two ends of the shielding ring (4).
2. The cable shield connection structure for a new energy vehicle according to claim 1, wherein an end portion of the wire core (11) protrudes from the inside of the inner insulation layer (12), an end portion of the inner insulation layer (12) protrudes from the inside of the shield layer (13), and the wire core (11) and the inner insulation layer (12) protrude into the non-shield connector (2) and are connected with the non-shield connector (2).
3. The cable shielding connection structure for the new energy vehicle according to claim 2, wherein a first heat shrinkage tube (5) is arranged on the outer wall of the end part of the shielding ring (4) close to the non-shielding connector (2), the inner side wall at one end of the first heat shrinkage tube (5) is shrunk to the outer side wall of the inner insulating layer (12), and the inner side wall at the other end of the first heat shrinkage tube (5) is shrunk to the outer side wall of the shielding ring (4);
the shielding ring (4) is far away from the end outer wall of the non-shielding connector (2) and is provided with a second heat shrinkage pipe (6), the inner side wall at one end of the second heat shrinkage pipe (6) is shrunk to the outer side wall of the outer insulating layer (14), and the inner side wall at the other end of the second heat shrinkage pipe (6) is shrunk to the outer side wall of the shielding ring (4).
4. A new energy vehicle cable shielding connection structure according to any one of claims 1 to 3, characterized in that the shielding device (3) comprises a connection ring (31) with a notch, two connection strips (32) respectively arranged at the notch position of the connection ring (31) and extending along the outer side of the connection ring (31), and a shielding cover (33) arranged at the side edge of the connection ring (31), wherein the two connection strips (32) correspond to each other, the shielding cover (33) is provided with an opening communicated with the notch of the connection ring (31), and the connection ring (31) is sleeved on the outer wall of the shielding ring (4);
the two connecting strips (32) are connected with each other and fasten the connecting ring (31) on the shielding ring (4), and are covered on the outer side of the non-shielding connector (2) through the shielding cover (33).
5. The cable shield connection structure for a new energy vehicle according to claim 4, wherein two of the connection bars (32) are parallel to each other.
6. The cable shielding connection structure for new energy vehicles according to claim 4, wherein the end portion of the connecting strip (32) close to the connecting ring (31) is provided with a tightening hole (34), and the end portion of the connecting strip (32) far away from the connecting ring (31) is provided with a connecting hole (35).
7. The cable shield connection structure for a new energy vehicle according to claim 4, wherein a cross-sectional area of the shield case (33) gradually increases in a direction away from the connection ring (31).
8. The cable shielding connection structure for new energy vehicles according to claim 1, wherein the shielding ring (4) is made of a metal material with an electromagnetic shielding function, and the shielding layer (13) is woven by a metal wire mesh with an electromagnetic shielding function.
9. A method for manufacturing a cable shielding connection structure for a new energy vehicle, characterized by using the cable shielding connection structure for a new energy vehicle according to any one of claims 1 to 8, comprising the steps of:
s1, extending the ends of a wire core (11) and an inner insulating layer (12) into a non-shielding connector (2) and connecting the wire core and the inner insulating layer with the non-shielding connector (2), simultaneously cutting an annular opening (141) on the outer side wall of an outer insulating layer (14) close to the non-shielding connector (2), and exposing a part of a shielding layer (13);
s2, crimping a shielding ring (4) on the shielding layer (13) of the exposed part, wherein the shielding ring (4) extends to the outer side wall of the outer insulating layer (14) along the two ends of the annular opening (141);
and S3, finally, fastening the shielding device (3) on the outer wall of the shielding ring (4), and enabling the shielding device (3) to be covered on the outer side of the non-shielding connector (2).
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| CN202311681168.9A CN117374671B (en) | 2023-12-08 | 2023-12-08 | Cable shielding connection structure for new energy vehicle and manufacturing method |
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| CN202311681168.9A CN117374671B (en) | 2023-12-08 | 2023-12-08 | Cable shielding connection structure for new energy vehicle and manufacturing method |
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| CN117374671B true CN117374671B (en) | 2024-03-12 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0469994A (en) * | 1990-07-10 | 1992-03-05 | Mitsubishi Electric Corp | Electric wire holder |
| JPH0773948A (en) * | 1993-09-01 | 1995-03-17 | Sumitomo Wiring Syst Ltd | Ground method of shield wire and grounding connector used for shield wire |
| JP2000299170A (en) * | 1999-04-16 | 2000-10-24 | Maspro Denkoh Corp | L-shaped coaxial plug connector |
| KR100797221B1 (en) * | 2006-10-10 | 2008-01-23 | 엘에스전선 주식회사 | Shield connector with excellent electric connection reliability |
| CN112350123A (en) * | 2020-11-24 | 2021-02-09 | 上海马勒热系统有限公司 | Automobile high-voltage shielding integrated connector |
| CN113628792A (en) * | 2021-07-22 | 2021-11-09 | 东风越野车有限公司 | Anti-electromagnetic interference method for vehicle wiring harness and anti-electromagnetic interference vehicle wiring harness |
| CN113708159A (en) * | 2021-08-21 | 2021-11-26 | 长春捷翼汽车零部件有限公司 | Shielding cable connection structure |
| CN217588459U (en) * | 2022-03-22 | 2022-10-14 | 徐州徐工新能源汽车有限公司 | High-voltage cable bending structure |
| CN217934449U (en) * | 2022-07-15 | 2022-11-29 | 泰科电子(上海)有限公司 | Cable assembly, connector and connector assembly |
| CN115425479A (en) * | 2022-08-31 | 2022-12-02 | 厦门唯恩电气有限公司成都分公司 | Shielding component and anti-rotation anti-interference through-hole connector |
| CN220065262U (en) * | 2023-05-10 | 2023-11-21 | 昆山新波特电子技术有限公司 | High-definition video transmission anti-interference coaxial line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9166307B2 (en) * | 2013-03-15 | 2015-10-20 | Perfectvision Manufacturing, Inc. | Enhanced continuity coaxial connectors with socketed nut |
-
2023
- 2023-12-08 CN CN202311681168.9A patent/CN117374671B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0469994A (en) * | 1990-07-10 | 1992-03-05 | Mitsubishi Electric Corp | Electric wire holder |
| JPH0773948A (en) * | 1993-09-01 | 1995-03-17 | Sumitomo Wiring Syst Ltd | Ground method of shield wire and grounding connector used for shield wire |
| JP2000299170A (en) * | 1999-04-16 | 2000-10-24 | Maspro Denkoh Corp | L-shaped coaxial plug connector |
| KR100797221B1 (en) * | 2006-10-10 | 2008-01-23 | 엘에스전선 주식회사 | Shield connector with excellent electric connection reliability |
| CN112350123A (en) * | 2020-11-24 | 2021-02-09 | 上海马勒热系统有限公司 | Automobile high-voltage shielding integrated connector |
| CN113628792A (en) * | 2021-07-22 | 2021-11-09 | 东风越野车有限公司 | Anti-electromagnetic interference method for vehicle wiring harness and anti-electromagnetic interference vehicle wiring harness |
| CN113708159A (en) * | 2021-08-21 | 2021-11-26 | 长春捷翼汽车零部件有限公司 | Shielding cable connection structure |
| CN217588459U (en) * | 2022-03-22 | 2022-10-14 | 徐州徐工新能源汽车有限公司 | High-voltage cable bending structure |
| CN217934449U (en) * | 2022-07-15 | 2022-11-29 | 泰科电子(上海)有限公司 | Cable assembly, connector and connector assembly |
| CN115425479A (en) * | 2022-08-31 | 2022-12-02 | 厦门唯恩电气有限公司成都分公司 | Shielding component and anti-rotation anti-interference through-hole connector |
| CN220065262U (en) * | 2023-05-10 | 2023-11-21 | 昆山新波特电子技术有限公司 | High-definition video transmission anti-interference coaxial line |
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| Publication number | Publication date |
|---|---|
| CN117374671A (en) | 2024-01-09 |
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