CN110556677A - wire harness structure with fireproof and anti-electromagnetic interference functions - Google Patents
wire harness structure with fireproof and anti-electromagnetic interference functions Download PDFInfo
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- CN110556677A CN110556677A CN201910840819.1A CN201910840819A CN110556677A CN 110556677 A CN110556677 A CN 110556677A CN 201910840819 A CN201910840819 A CN 201910840819A CN 110556677 A CN110556677 A CN 110556677A
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- branch
- plug connector
- harness
- branch wire
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- 229910052751 metal Inorganic materials 0.000 claims description 65
- 239000002184 metal Substances 0.000 claims description 65
- 239000011521 glass Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims 2
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003595 mist Substances 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
- H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
Abstract
the invention discloses a fireproof and anti-electromagnetic interference wiring harness structure, which solves the problems of low reliability and environmental resistance and short service life of an engine cable in the prior art. The wire harness structure comprises a socket connector, a first branch wire harness, a second branch wire harness, a third branch wire harness, a fourth branch wire harness, a fifth branch wire harness, a three-way component, a first plug connector, a second plug connector, a third plug connector, a fourth plug connector and a fifth plug connector; the wiring harness structure provided by the invention has the advantages that the firm and reliable installation is ensured, the branching function is realized, the performances of electromagnetic continuity, fire resistance, high and low temperature resistance, impact resistance, humidity and heat resistance, salt mist resistance and the like are ensured, and the reliable signal transmission of the wiring harness in the structure under flame, electromagnetic interference and other complex environments is ensured.
Description
Technical Field
The invention belongs to the technical field of aircraft engine cables, and particularly provides a fireproof and anti-electromagnetic interference wiring harness structure which is applied to an aircraft engine cable and mainly used for ensuring that wiring harnesses in the structure can realize reliable signal transmission under flame, electromagnetic interference and other complex environments.
Background
The engine cable is a nervous system of the engine, organically connects all parts of the engine together, is an important accessory of the engine, and the reliability of the engine cable is related to the safety of the whole engine and even the whole airplane. Along with the development, development and updating of national defense weapon equipment engine products, the requirements on the reliability, the environmental resistance and the service life of an engine cable are higher and higher, and the development of the engine cable becomes an important component part for the development of the engine.
disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a fireproof and anti-electromagnetic interference wiring harness structure, which realizes a branching function while ensuring firm and reliable installation, ensures electromagnetic continuity, fireproof and high and low temperature resistant, and ensures reliable signal transmission of the wiring harness in the structure under flame, electromagnetic interference and other complex environments.
In order to achieve the purpose, the invention adopts the following technical scheme: a wiring harness structure with fire prevention and electromagnetic interference resistance comprises a socket connector, a first branch wiring harness, a second branch wiring harness, a third branch wiring harness, a fourth branch wiring harness, a fifth branch wiring harness, a three-way component, a first plug connector, a second plug connector, a third plug connector, a fourth plug connector and a fifth plug connector;
The socket connector is connected with a first branch wire harness, a first plug connector is mounted at the tail end of the first branch wire harness, and the first branch wire harness isThe shape of the three-way pipe is that a second branch wire harness and a third branch wire harness are arranged on the first branch wire harness, a fourth branch wire harness and a fifth branch wire harness are arranged on the second branch wire harness, and the fourth branch wire harness is connected with the second branch wire harness through a three-way component; the tail end of the second branch wiring harness is provided with a second plug connector, the tail end of the third branch wiring harness is provided with a third plug connector, the tail end of the fourth branch wiring harness is provided with a fourth plug connector, and the tail end of the fifth branch wiring harness is provided with a fifth plug connector;
The first branch wire harness, the second branch wire harness, the third branch wire harness, the fourth branch wire harness and the fifth branch wire harness all comprise wire bundles, the wire bundles are wound by 3 layers of polytetrafluoroethylene films in an overlapping mode, alkali-free glass yarn ropes are used for bundling at the winding termination positions, and organic silicon insulating paint is coated outside the alkali-free glass yarn ropes for protection;
The periphery of a wire bundle at the intersection of the first branch wire harness, the second branch wire harness and the third branch wire harness is respectively provided with a first metal hard pipe and a second metal hard pipe, and the periphery of a wire bundle at the intersection of the second branch wire harness and the fifth branch wire harness is provided with a third metal hard pipe;
a first shielding hose is arranged between the socket connector and the first metal hard pipe, a second shielding hose is arranged between the first metal hard pipe and the second metal hard pipe, a third shielding hose is arranged between the second metal hard pipe and the first plug connector, and a ninth shielding hose is arranged between the second metal hard pipe and the third plug connector;
The three-way component is respectively connected with the first metal hard pipe, the fourth plug connector and the third metal hard pipe through a fourth shielding hose, a fifth shielding hose and a sixth shielding hose
and a seventh shielding hose is arranged between the third metal hard tube and the second plug connector, and an eighth shielding hose is arranged between the third metal hard tube and the fifth plug connector.
furthermore, the metal hard tube and the shielding hose are installed through a connecting mechanism, the connecting mechanism comprises an inner bushing, an outer bushing and a locking nut, the inner bushing and the outer bushing are respectively installed on the inner periphery and the outer periphery of the butt joint end of the shielding hose, the inner bushing and the outer bushing clamp the shielding hose, and at least 3 layers of glass cloth are filled on the outer periphery of a polytetrafluoroethylene film of the wiring harness and filled to the limited inner diameter space of a cylinder body of the inner bushing;
the butt joint end of the metal hard pipe is provided with a joint, the tail end face of the joint abuts against the end face of the annular boss of the inner lining, and a locking nut is installed outside the inner lining, the outer lining and the metal hard pipe joint in a threaded connection mode, so that the shielding hose and the metal hard pipe are tightly combined.
Further, the wire bundle adopts fireproof wires.
Further, the first metal hard pipe, the second metal hard pipe and the third metal hard pipe are all aluminum alloy pipes.
Furthermore, the socket connector is connected with the first branch wiring harness through the socket tail accessory, the annular grounding sheet is arranged inside the socket tail accessory, the shielding layer of the wire is uniformly scattered and then welded and fixed with the grounding sheet, the nut of the first shielding hose is screwed with the socket tail accessory, the first shielding hose and the socket tail accessory are fixed to form an inner and outer double-layer shielding structure, and 360-degree shell connection is achieved.
furthermore, the three-way assembly is fixed with the fourth shielding hose, the fifth shielding hose and the sixth shielding hose through nuts respectively.
Furthermore, the first branch wire harness, the second branch wire harness, the third branch wire harness, the fourth branch wire harness and the fifth branch wire harness are respectively connected with the first plug connector, the second plug connector, the third plug connector, the fourth plug connector and the fifth plug connector through the first plug tail accessory, the second plug tail accessory, the third plug tail accessory, the fourth plug tail accessory and the fifth plug tail accessory.
Compared with the prior art, the invention has the following beneficial effects: the lead shielding layer is uniformly scattered and then welded and fixed with the grounding sheet in the tail accessory of the socket, the lead shielding layer can be fixed at the tail accessory part of the socket in a fixing mode, 360-degree shielding is guaranteed, the shielding effect is better, the contact resistance is improved, the ground connection of the lead shielding layer and the hose assembly is realized, ground loop interference can be well inhibited, the normal use of a product in a high-strength vibration environment is met, the shielding connection of the product is more reliable, and the reliability of the product is greatly improved.
The connection structure of the shielding hose and the metal hard pipe meets the use requirements of fire prevention and flame retardance of the engine cable, has high product reliability, can work at the ambient temperature of minus 55-200 ℃, and meets the requirement of working for 15min under flame of 1093 ℃.
the wiring harness structure provided by the invention has the advantages that the firm and reliable installation is ensured, the branching function is realized, the electromagnetic continuity, the fireproof high-low temperature resistance, the impact resistance, the humidity and heat resistance and the salt mist resistance are ensured, and the reliable signal transmission of the wiring harness in the structure under flame, electromagnetic interference and other complex environments is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connection structure between a shielding hose and a metal hard pipe;
FIG. 3 is a schematic view of the connection of the receptacle connector and the first shielded hose;
In the figure: 1-a socket connector; 2-a first branch harness; 3-a second branch harness; 4-a third branch harness; 5-a fourth branch harness; 6-a fifth branch harness; 7-a tee assembly; 8-a first plug connector; 9-a second plug connector; 10-a third plug connector; 11-a fourth plug connector; 12-a fifth plug connector; 13-a wire harness; 14-a polytetrafluoroethylene film; 15-a first metal rigid tube; 16-a second metal rigid tube; 17-a third metal rigid tube; 18-a first shielding hose; 19-a second shielding hose; 20-a third shielding hose; 21-a fourth shielded hose; 22-a fifth shielding hose; 23-a sixth shielding hose; 24-a seventh shielding hose; 25-an eighth shielded flexible conduit; 26-inner liner; 27-an outer liner; 28-lock nut; 29-a linker; 30-glass cloth; 31-socket tail attachment; 32-a ground pad; 33-first plug tail attachment; 34-a second plug tail attachment; 35-third plug tail attachment; 36-fourth plug tail attachment; 37-fifth plug tail attachment; 38-ninth shielded flexible tube.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a wiring harness structure for preventing fire and electromagnetic interference is a fork-type structure as a whole, and includes a socket connector 1, a first branch wiring harness 2, a second branch wiring harness 3, a third branch wiring harness 4, a fourth branch wiring harness 5, a fifth branch wiring harness 6, a tee joint component 7, a first plug connector 8, a second plug connector 9, a third plug connector 10, a fourth plug connector 11, and a fifth plug connector 12;
The socket connector 1 is connected with a first branch bundle 2, a first plug connector 8 is installed at the tail end of the first branch bundle 2, and the first branch bundle 2 isThe shape of the three-way junction is that a second branch wiring harness and a third branch wiring harness 4 are arranged on the first branch wiring harness 2, a fourth branch wiring harness 5 and a fifth branch wiring harness 6 are arranged on the second branch wiring harness 3, and the fourth branch wiring harness 5 is connected with the second branch wiring harness 3 through a three-way component 7; a second plug connector 9 is installed at the tail end of the second branch wiring harness 3, a third plug connector 10 is installed at the tail end of the third branch wiring harness 4, a fourth plug connector 11 is installed at the tail end of the fourth branch wiring harness 5, and a fifth plug connector 12 is installed at the tail end of the fifth branch wiring harness 6;
The first branch wire bundle 2, the second branch wire bundle 3, the third branch wire bundle 4, the fourth branch wire bundle 5 and the fifth branch wire bundle 6 all comprise a wire bundle 13, a polytetrafluoroethylene film 14 is adopted to be wound outside the wire bundle 13 in an overlapping mode for 3 layers, an alkali-free glass yarn rope is adopted to be bundled at the winding termination position, and organic silicon insulating paint is coated outside the alkali-free glass yarn rope for protection;
A first metal hard pipe 15 and a second metal hard pipe 16 are respectively arranged on the periphery of a wire bundle 13 at the intersection of the first branch wire bundle 2, the second branch wire bundle 3 and the third branch wire bundle 4, and a third metal hard pipe 17 is arranged on the periphery of a wire bundle 13 at the intersection of the second branch wire bundle 3 and the fifth branch wire bundle 6;
A first shielding hose 18 is arranged between the socket connector 1 and the first metal hard tube 15, a second shielding hose 19 is arranged between the first metal hard tube 15 and the second metal hard tube 16, a third shielding hose 20 is arranged between the second metal hard tube 16 and the first plug connector 8, and a ninth shielding hose 38 is arranged between the second metal hard tube 16 and the third plug connector 10;
The tee joint component 7 is respectively connected with the first metal hard pipe 15, the fourth plug connector 11 and the third metal hard pipe 17 through a fourth shielding hose 21, a fifth shielding hose 22 and a sixth shielding hose 23; the tee assembly 7 of the present invention is a tee assembly for an engine cable of application number 201721687795.3.
A seventh shielding hose 24 is mounted between the third metal pipe 17 and the second plug connector 9, and an eighth shielding hose 25 is mounted between the third metal pipe 17 and the fifth plug connector 12.
Referring to fig. 2 (fig. 2 illustrates a connection structure of a first metal hard pipe 15 and a second shielding hose 19), the metal hard pipe and the shielding hose are installed through a connection mechanism, the connection mechanism comprises an inner bushing 26, an outer bushing 27 and a lock nut 28, the inner bushing 26 and the outer bushing 27 are respectively installed on the inner periphery and the outer periphery of the butt end of the shielding hose, the inner bushing 26 and the outer bushing 27 clamp the shielding hose, and at least 3 layers of glass cloth 30 are filled on the outer periphery of the teflon film 14 of the lead bundle 13 until the space inside the cylinder of the inner bushing 26 is limited;
the butt joint end of the metal hard pipe is provided with a joint 29, the tail end face of the joint 29 abuts against the end face of the annular boss of the inner bushing 26, and a lock nut 28 is installed outside the inner bushing 26, the outer bushing 27 and the metal hard pipe joint 29 in a threaded connection mode, so that the shielding hose and the metal hard pipe are tightly combined.
The wire bundle 13 is made of fireproof wire.
the first metal hard pipe 15, the second metal hard pipe 16 and the third metal hard pipe 17 are all aluminum alloy pipes.
Referring to fig. 3, the socket connector 1 is connected to the first branch cable bundle 2 through the socket tail accessory 31, the ground strip 32 is arranged inside the socket tail accessory 31, the shielding layer of the lead is uniformly broken up and then welded and fixed to the ground strip 32, the nut of the first shielding hose 18 is screwed to the socket tail accessory 31, the first shielding hose 18 and the socket tail accessory 31 are fixed to form an inner-outer double-layer shielding structure, and therefore 360-degree shell connection is achieved.
The three-way component 7 is fixed with the fourth shielding hose 21, the fifth shielding hose 22 and the sixth shielding hose 23 through nuts.
the first branch harness 2, the second branch harness 3, the third branch harness 4, the fourth branch harness 5 and the fifth branch harness 6 are respectively connected with the first plug connector 8, the second plug connector 9, the third plug connector 10, the fourth plug connector 11 and the fifth plug connector 12 through the first plug tail accessory 33, the second plug tail accessory 34, the third plug tail accessory, the fourth plug tail accessory and the fifth plug tail accessory.
the connecting structure of the shielding hose and the metal hard tube is applied to an aircraft engine cable and is mainly used for ensuring that a wire harness in the structure can realize reliable signal transmission under flame. The product selects a fireproof wire to be made into a wire bundle 13, a polytetrafluoroethylene film 14 is wound outside the wire, the sheath adopts a mode of combining a metal hard tube and a shielding hose, and the product can work at the ambient temperature of minus 55-200 ℃ and can meet the requirement of working for 15min under flame of 1093 ℃.
when the three-way component is installed, the three-way support on the three-way component 7 is directly fixed at the accessory of the engine, so that the fixation and the bifurcation between a product and the engine are realized. The three-way component plays a role in protecting products, fundamentally solves the problem that the products cannot be installed, fixed and separated due to narrow space, improves the reliability of the products and prolongs the service life of the products, and the service life of the products reaches 12000 flight hours.
The design mode of the inner and outer double-layer shielding can ensure the shielding effect of the product. The shielding hose belongs to a nonporous shielding body, electromagnetic coupling between the inside and the outside of the product is performed through the diffusion of electromagnetic waves in the shielding body, loop current passes through the shielding layer and does not pass through a lead, the loop interference can be well inhibited, and the higher the system frequency is, the larger the shielding effect is.
The wiring harness structure of the invention is designed in a fork type, not all branches are in the same plane, and the angle of each branch relative to the angle of the main branch (the first branch wiring harness 2) is determined according to the actual installation position of the product in the engine, so that the service life and the reliability of the cable can be improved.
The wiring harness structure ensures that the wiring harness in the structure can realize reliable signal transmission under flame, electromagnetic interference and other complex environments.
the principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A fireproof and anti-electromagnetic interference wire harness structure is characterized by comprising a socket connector, a first branch wire harness, a second branch wire harness, a third branch wire harness, a fourth branch wire harness, a fifth branch wire harness, a three-way component, a first plug connector, a second plug connector, a third plug connector, a fourth plug connector and a fifth plug connector;
the socket connector is connected with a first branch wire harness, a first plug connector is mounted at the tail end of the first branch wire harness, and the first branch wire harness isThe first branch line harness is provided withthe three-dimensional wire harness comprises a second branch wire harness and a third branch wire harness, wherein the second branch wire harness is provided with a fourth branch wire harness and a fifth branch wire harness, and the fourth branch wire harness is connected with the second branch wire harness through a three-way component; the tail end of the second branch wiring harness is provided with a second plug connector, the tail end of the third branch wiring harness is provided with a third plug connector, the tail end of the fourth branch wiring harness is provided with a fourth plug connector, and the tail end of the fifth branch wiring harness is provided with a fifth plug connector;
The first branch wire harness, the second branch wire harness, the third branch wire harness, the fourth branch wire harness and the fifth branch wire harness all comprise wire bundles, the wire bundles are wound by 3 layers of polytetrafluoroethylene films in an overlapping mode, alkali-free glass yarn ropes are used for bundling at the winding termination positions, and organic silicon insulating paint is coated outside the alkali-free glass yarn ropes for protection;
the periphery of a wire bundle at the intersection of the first branch wire harness, the second branch wire harness and the third branch wire harness is respectively provided with a first metal hard pipe and a second metal hard pipe, and the periphery of a wire bundle at the intersection of the second branch wire harness and the fifth branch wire harness is provided with a third metal hard pipe;
a first shielding hose is arranged between the socket connector and the first metal hard pipe, a second shielding hose is arranged between the first metal hard pipe and the second metal hard pipe, a third shielding hose is arranged between the second metal hard pipe and the first plug connector, and a ninth shielding hose is arranged between the second metal hard pipe and the third plug connector;
The three-way component is respectively connected with the first metal hard pipe, the fourth plug connector and the third metal hard pipe through a fourth shielding hose, a fifth shielding hose and a sixth shielding hose;
And a seventh shielding hose is arranged between the third metal hard tube and the second plug connector, and an eighth shielding hose is arranged between the third metal hard tube and the fifth plug connector.
2. A fire-proof and electromagnetic interference resistant wire harness structure as claimed in claim 1, wherein the metal hard tube and the shielding hose are installed by a connection mechanism, the connection mechanism comprises an inner bushing, an outer bushing and a lock nut, the inner bushing and the outer bushing are respectively installed on the inner circumference and the outer circumference of the butt end of the shielding hose, the inner bushing and the outer bushing clamp the shielding hose, and the outer circumference of the teflon film of the wire harness is filled with at least 3 layers of glass cloth to be filled to the limited space of the inner diameter of the barrel body of the inner bushing;
The butt joint end of the metal hard pipe is provided with a joint, the tail end face of the joint abuts against the end face of the annular boss of the inner lining, and a locking nut is installed outside the inner lining, the outer lining and the metal hard pipe joint in a threaded connection mode, so that the shielding hose and the metal hard pipe are tightly combined.
3. A fire and electromagnetic interference resistant wiring harness structure as claimed in claim 1, wherein said wiring harness is fire-proof wire.
4. A fire and electromagnetic interference resistant wiring harness structure as claimed in claim 1, wherein said first metal rigid tube, said second metal rigid tube and said third metal rigid tube are aluminum alloy tubes.
5. The harness structure according to claim 1, wherein the socket connector is connected to the first branch harness through a socket tail fitting, a ring-shaped grounding piece is disposed inside the socket tail fitting, the shielding layer of the conductive wire is uniformly broken and then welded to the grounding piece, a nut of the first shielding hose is screwed to the socket tail fitting, and the first shielding hose and the socket tail fitting are fixed to form an inner and outer double-layer shielding structure, thereby realizing 360 ° enclosure connection.
6. A fire-resistant and electromagnetic interference resistant wire harness structure according to claim 1, wherein the three-way member is fixed to the fourth shielding hose, the fifth shielding hose and the sixth shielding hose by nuts, respectively.
7. a fire-resistant and electromagnetic interference resistant wiring harness structure according to claim 1, wherein the first branch wiring harness, the second branch wiring harness, the third branch wiring harness, the fourth branch wiring harness and the fifth branch wiring harness are connected to the first plug connector, the second plug connector, the third plug connector, the fourth plug connector and the fifth plug connector respectively through the first plug tail attachment, the second plug tail attachment, the third plug tail attachment, the fourth plug tail attachment and the fifth plug tail attachment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840819.1A CN110556677A (en) | 2019-09-06 | 2019-09-06 | wire harness structure with fireproof and anti-electromagnetic interference functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840819.1A CN110556677A (en) | 2019-09-06 | 2019-09-06 | wire harness structure with fireproof and anti-electromagnetic interference functions |
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| Publication Number | Publication Date |
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| CN110556677A true CN110556677A (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910840819.1A Pending CN110556677A (en) | 2019-09-06 | 2019-09-06 | wire harness structure with fireproof and anti-electromagnetic interference functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097946A (en) * | 2021-04-07 | 2021-07-09 | 中航通飞研究院有限公司 | Aircraft wiring harness laying structure |
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| CN103596807A (en) * | 2011-06-07 | 2014-02-19 | 矢崎总业株式会社 | Wiring harness and wiring harness manufacturing system |
| CN202992467U (en) * | 2013-01-15 | 2013-06-12 | 浙江峻和橡胶科技有限公司 | Rubber pipe assembly used for cold side of vehicle fluid turbocharger system |
| CN105957631A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Flexible cable and preparation method therefor |
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| CN113097946A (en) * | 2021-04-07 | 2021-07-09 | 中航通飞研究院有限公司 | Aircraft wiring harness laying structure |
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