CN214428380U - Multichannel high temperature resistant engine compartment cable - Google Patents
Multichannel high temperature resistant engine compartment cable Download PDFInfo
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- CN214428380U CN214428380U CN202120515402.0U CN202120515402U CN214428380U CN 214428380 U CN214428380 U CN 214428380U CN 202120515402 U CN202120515402 U CN 202120515402U CN 214428380 U CN214428380 U CN 214428380U
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Abstract
The utility model relates to the technical field of cables, in particular to a multi-channel high-temperature resistant engine compartment cable which comprises a cable harness, an electric connector, a first lug plate, a thermocouple lug plate and a three-wire bolt, the cable harness comprises a wire harness, a mica tape, a double-layer polytetrafluoroethylene film, an integrally-formed braided sheath and an oil-resistant heat-shrinkable tube from inside to outside in sequence, the integrally formed braided sheath is formed by braiding polyimide fiber filaments and silver-plated copper wires, the wire harness is formed by gathering a plurality of wires, the bifurcation of the wire harness is pressed and fixed through a connecting terminal, a matching joint is also fixed at the gap between the connecting terminal and the wire harness, the matched joint is used for being matched with a wire harness to enable the wiring terminal to be in a full-filled state, and the end of the cable harness is connected with an electric connector, a first lug, a thermocouple lug and a three-wire bolt. The utility model has the advantages of good heat resistance and the like.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to multichannel high temperature resistant engine compartment cable.
Background
The traditional structure type engine compartment cable has been certified by the civil aviation bureau for twenty years, but the problems that the wire harness diameter of the engine compartment cable is not regular enough, the tolerance is different in size, the error of the size structure is large and the like exist, and the problems bring troubles to installation personnel. When the heat resistance of the cable harness of the traditional structural engine compartment is poor and the cable harness breaks down, the maintainability is extremely low, and the cable harness can only be reprocessed and integrally replaced. Meanwhile, the wire harness of the original structure has certain toxicity, and certain potential safety hazards are caused to wire harness assembly personnel and installation personnel.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a multichannel high temperature resistant engine compartment cable, it has advantages such as heat resistance is good, electromagnetic shielding performance is good.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a multichannel high temperature resistant engine compartment cable, includes cable harness, electric connector, first lug, thermocouple lug and three-way bolt, cable harness from interior to exterior includes wire harness, mica tape, double-deck polytetrafluoroethylene film, integrated into one piece in proper order and weaves sheath and resistant oily pyrocondensation pipe, integrated into one piece weaves the sheath and weaves with silver-plated copper wire by polyimide fiber filament and form, wire harness collects by a plurality of wires and forms, the branching department of wire harness is fixed through the binding post crimping, space department between binding post and the wire harness still is fixed with the match joint, the match joint is used for cooperating wire harness to make binding post be in the state of filling up, cable harness's end department is connected with electric connector, first lug, thermocouple lug and three-way bolt.
Preferably, the cable harness includes sixteen first branch harnesses, eight second branch harnesses, a third branch harness, a fourth branch harness, and two fifth branch harnesses, the number of the electrical connectors () is sixteen, the number of the first lugs is sixteen, the number of the thermocouple lugs is three, each free end of the first branch harness is connected with one electrical connector, each free end of the second branch harness is connected with two first lugs, the free end of the third branch harness is connected with three thermocouple lugs, the free end of the fourth branch harness is connected with a three-wire plug, and the fifth branch harness is a suspended harness.
Preferably, the matching joint is made of a silicon rubber material.
Preferably, the matching joint body is strip-shaped, and the cross section of the matching joint body is crescent.
Preferably, the first tab is a wire terminal.
Preferably, one side of the thermocouple lug is welded with a nut, the other side of the thermocouple lug is provided with an assembly section, the assembly section comprises a plurality of sawtooth-shaped grooves which are arranged in parallel, and the included angle of teeth of each sawtooth-shaped groove is 60 degrees.
Preferably, the nut is a hexagonal nut.
Use the utility model discloses a beneficial effect is: the mica tape, the double-layer polytetrafluoroethylene film, the integrally-formed braided sheath and the oil-resistant heat shrink tube are used, so that the novel electromagnetic shielding cable is good in heat resistance, electromagnetic shielding performance and corrosion resistance, light in weight, non-toxic and harmless; the integrally formed braided sheath realizes seamless butt joint at the crotch part and the thickness change part of the wire harness; the electromagnetic shielding of the metal wire can obtain good continuity, and the wear resistance and the tensile resistance of the aramid fiber can also obtain good continuity; the matching joint is arranged at the bifurcation of the wire harness, so that the adaptability of the wire harness and the wiring terminal is improved, and the regularity of the wire diameter at the bifurcation is improved; the sawtooth-shaped grooves are formed in the thermocouple wiring pieces, so that friction force between the thermocouple wiring pieces and a wire harness is enhanced, and reliability is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a thermocouple junction piece according to the present invention;
FIG. 3 is a schematic view showing an assembling structure of a wire harness, a terminal and a mating terminal in embodiment 1;
fig. 4 is a schematic structural view of a connection terminal in embodiment 1;
the reference numerals include:
100-cable harness, 110-first branch harness, 120-second branch harness, 130-third branch harness, 140-fourth branch harness, 150-fifth branch harness, 101-wire harness, 102-mating connector, 103-terminal, 200-electric connector, 300-first lug, 400-thermocouple lug,
410-nut, 420-sawtooth groove, 500-three-wire bolt.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, a multi-channel high temperature resistant engine compartment cable comprises a cable harness 100, an electrical connector 200, a first lug 300, a thermocouple lug 400 and a three-wire plug 500, wherein the cable harness 100 sequentially comprises a wire harness 101, a mica tape, a double-layer polytetrafluoroethylene film, an integrally formed braided sheath and an oil-resistant heat-shrinkable tube from inside to outside, and the cable harness has improved environmental resistance such as electromagnetic shielding, flame retardance, wear resistance, oil resistance, moisture resistance, high temperature resistance, impact resistance and the like, does not need to be aired for a long time, and has detachability during overhaul and repair; the mica tape has high melting point, can play a role in flame retardance and prevent ignition caused by overhigh temperature of an engine compartment; the polytetrafluoroethylene film not only has the flame retardant function, but also can insulate heat, and adopts a double-layer interval type wrapping mode; the silver-plated copper wire and the polyimide fiber filament are woven together by the integrally-formed weaving sheath, the electromagnetic shielding and light-weight advantages of the silver-plated copper wire and the polyimide fiber filament are integrated, and meanwhile, compared with the traditional mode, the integrally-formed weaving sheath has the advantages that the continuity of special positions such as a bifurcation, a thickness change position and the like is improved by the integrally-formed weaving mode; the outermost oil-resistant heat-shrinkable tube can prevent oil, water and moisture outside the wire harness from entering the cable to cause damage, and meanwhile, the heat-shrinkable tube can be shaped to enable the wire harness to be attractive as a whole; the integrally-formed braided sheath is formed by braiding polyimide fiber filaments and silver-plated copper wires, and seamless butt joint of the integrally-formed braided sheath at the branching position and the thickness change position of a wire harness is realized; the electromagnetic shielding of the metal wire can obtain good continuity, and the wear resistance and the tensile resistance of the aramid fiber can also obtain good continuity; the wire harness 101 is formed by collecting a plurality of wires, the bifurcation of the wire harness 101 is fixed by a terminal 103 in a crimping manner, a gap between the terminal 103 and the wire harness 101 is filled with a matching joint 102, the matching joint 102 is used for matching with the wire harness 101 to enable the terminal 103 to be in a full-filling state, after the inside of the terminal 103 is filled, the relative position of the wire harness 101 and the terminal 103 is firmer, and the matching joint 102 is matched with the wire harness 101 to enable the inside of the terminal 103 to be in the full-filling state, in the embodiment, the bifurcation of the wire harness 101 is provided with 2 paths of branch wires and 1 path of main wires, in other embodiments, the number of the branch wires can be any integer larger than 2, in other embodiments, the matching joint 102 with different specifications can be designed according to the size and the shape of the space in the terminal 103 to be filled, and can be plugged into the terminal 103, make binding post 103 both ends outlet all be in the state of filling up, it is fixed with binding post 103 to match joint 102 after the crimping, this kind of design is in order to improve wire pencil 101 and binding post 103's suitability, avoids wire pencil 101 to divide branch road back both ends one wide narrow make wire pencil 101 relatively narrow position have great space in binding post 103, is unfavorable for wire pencil 101 horizontal fixed easy wearing and tearing when making wire 101 use, and effectively avoids the inside wire pencil 101 branching department swell of cable, the end punishment of cable pencil 100 is connected with electric connector 200, first lug 300, thermocouple lug 400 and three-way bolt 500 respectively.
The engine compartment cable in the prior art is only wound with J207 glue which is aired for a long time in a single-layer overlapping mode outside a wire, the structure is simple, the temperature-resistant grade is low, the wire harness does not have a shielding function, electromagnetic shielding completely depends on a shielding layer of the wire, the wire harness is not wear-resistant and attractive in appearance, and liquid can enter the wire harness through a wrapping gap to interfere with a circuit. After the J207 glue is cured, the detachability is reduced, which causes trouble to maintenance; meanwhile, the toxicity is strong, and certain harm is caused to the health of operators in the processing process.
The cable harness 100 comprises sixteen first branch harnesses 110, eight second branch harnesses 120, a third branch harness 130, a fourth branch harness 140 and two fifth branch harnesses 150, the number of the electric connectors (200) is 16, the number of the first lugs 300 is 16, the number of the thermocouple lugs 400 is 3, the free end of each first branch harness 110 is connected with one electric connector 200, the free end of each second branch harness 120 is connected with two first lugs 300, the free end of the third branch harness 130 is connected with three thermocouple lugs 400, the free end of the fourth branch harness 140 is connected with a three-wire bolt, the fifth branch harnesses 150 are suspended harnesses, and the two suspended harnesses are reserved for installation.
The mating connector 102 is made of a silicone rubber material.
The main body of the matching joint 102 is strip-shaped, and the cross section of the main body is crescent-shaped.
The first tab 300 is a wire terminal.
The thermocouple lug 400 is characterized in that a nut 410 is welded on one side of the thermocouple lug 400, an assembly section is arranged on the other side of the thermocouple lug, the assembly section comprises a plurality of sawtooth-shaped grooves 420 which are arranged in parallel, and the included angle between teeth of each sawtooth-shaped groove 420 is 60 degrees. The sawtooth-shaped groove is made by using a horizontal grinder and a strong acid solution, so that the surface roughness is increased, the friction force between the sawtooth-shaped groove and a wire harness is increased during wire pressing, and the reliability is improved.
The nut 410 is a hexagonal nut.
The above description is only a preferred embodiment of the present invention, and many changes can be made in the detailed description and the application scope according to the idea of the present invention for those skilled in the art, which all belong to the protection scope of the present invention as long as the changes do not depart from the concept of the present invention.
Claims (7)
1. A multichannel high temperature resistant engine compartment cable which characterized in that: the cable harness comprises a cable harness (100), an electric connector (200), a first lug (300), a thermocouple lug (400) and a three-wire plug pin (500), wherein the cable harness (100) sequentially comprises a wire harness (101), a mica tape, a double-layer polytetrafluoroethylene film, an integrally woven sheath and an oil-resistant heat shrink tube from inside to outside, the integrally woven sheath is formed by weaving a polyimide fiber filament and a silver-plated copper wire, the wire harness (101) is formed by collecting a plurality of wires, the branch part of the wire harness (101) is fixed through a wiring terminal (103) in a compression joint mode, a matching joint (102) is further fixed at a gap between the wiring terminal (103) and the wire harness (101), the matching joint (102) is used for matching the wire harness (101) to enable the wiring terminal (103) to be in a full-up state, and the end part of the cable harness (100) is connected with the electric connector (200), A first lug (300), a thermocouple lug (400), and a three-wire plug (500).
2. The multi-channel high temperature resistant engine compartment cable of claim 1, wherein: cable harness (100) includes sixteen first branch pencil (110), eight second branch pencil (120), third branch pencil (130), fourth branch pencil (140) and two fifth branch pencil (150), the number of electric connector (200) is sixteen, and the number of first lug (300) is sixteen, and the number of thermocouple lug (400) is three, every the free end and an electric connector (200) of first branch pencil (110) are connected, every the free end of second branch pencil (120) is connected with two first lugs (300), the free end of third branch pencil (130) is connected with three thermocouple lug (400), the free end and the three-wire bolt of fourth branch pencil (140) are connected, fifth branch pencil (150) are unsettled.
3. The multi-channel high temperature resistant engine compartment cable of claim 1, wherein: the matching joint (102) is made of silicon rubber.
4. The multi-channel high temperature resistant engine compartment cable of claim 1, wherein: the main body of the matching joint (102) is strip-shaped, and the cross section of the main body is crescent.
5. The multi-channel high temperature resistant engine compartment cable of claim 1, wherein: the first tab (300) is a wire terminal.
6. The multi-channel high temperature resistant engine compartment cable of claim 1, wherein: the thermocouple lug (400) one side welding has nut (410), and the opposite side has the assembly segment, including a plurality of zigzag recess (420) of arranging in parallel on the assembly segment, the tooth contained angle of every zigzag recess (420) is 60.
7. The multi-channel high temperature resistant engine compartment cable of claim 6, wherein: the nut (410) is a hexagonal nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515402.0U CN214428380U (en) | 2021-03-11 | 2021-03-11 | Multichannel high temperature resistant engine compartment cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515402.0U CN214428380U (en) | 2021-03-11 | 2021-03-11 | Multichannel high temperature resistant engine compartment cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214428380U true CN214428380U (en) | 2021-10-19 |
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ID=78073120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120515402.0U Active CN214428380U (en) | 2021-03-11 | 2021-03-11 | Multichannel high temperature resistant engine compartment cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214428380U (en) |
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2021
- 2021-03-11 CN CN202120515402.0U patent/CN214428380U/en active Active
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