CN212137177U - Fireproof wire harness - Google Patents

Abstract

The utility model relates to a fire prevention pencil, including the pencil body with be fixed in the terminal at pencil body both ends, pencil body cover is equipped with the hose, and the hose both ends are fixed with butt joint seat and terminal butt joint, and the scarf joint groove has been seted up to the hose outer wall, and the scarf joint inslot intussuseption is filled with the fire retardant, the scarf joint groove encircles along the outer wall circumference spiral of hose, the hose outer wall bonds the protective layer that has the covering fire retardant. The utility model discloses have the easy curved roll of just having the effect that prevents the pencil burning.

Description

Fireproof wire harness

Technical Field

The utility model belongs to the technical field of the technique of pencil and accessory and specifically relates to a fire prevention pencil is related to.

Background

An electronic harness is generally composed of a lead and a terminal, and the electronic harness bridges a communication bridge between two or more isolated and non-communicating electronic circuits, so that current can flow, and various functions of various electronic components are realized.

The utility model discloses a cable is fire prevention explosion-proof equipment for intermediate head is currently as authorizing the notice number CN208862548U utility model discloses, including setting up the shell outside the intermediate head, be formed with the sealed chamber that has the thermal-insulated fire-retardant material of fire prevention to fill between shell and intermediate head, install flange on the fill opening of shell, flange is sealed through elasticity pressure release diaphragm, the one end of keeping away from the fill opening at flange is equipped with towards the baffle of elasticity pressure release diaphragm, flange is through first connecting bolt fixed mounting on the fill opening, and be equipped with first sealing washer between flange and fill opening.

The above prior art solutions have the following drawbacks: inside being used for connecting the electron pencil between the different circuit module of household electrical appliances is usually used for in the less space, and the electron pencil usually can be in the state of curling, and the fire prevention explosion-proof pencil in the contrast-file has the harder shell of feel, is unfavorable for being used for inside the household electrical appliances.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a fire prevention pencil, it has the easy curly effect that just has the pencil burning of preventing.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a fire prevention pencil, includes the pencil body and is fixed in the terminal at pencil body both ends, pencil body cover is equipped with the hose, and the hose both ends are fixed with butt joint seat and terminal butt joint, and the scarf joint groove has been seted up to the hose outer wall, and the scarf joint inslot intussuseption is filled with the fire retardant, the scarf joint groove encircles along the outer wall spiral of hose, the hose outer wall bonds has the protective layer that covers the fire retardant.

By adopting the technical scheme, the scarf groove is formed in the outer wall of the hose, the flame retardant is filled in the scarf groove, the wiring harness in the hose is prevented from being ignited when the internal environment temperature of the household appliance is high, the protective layer is arranged to cover the flame retardant, the flame retardant is prevented from falling from the scarf groove, the hose is arranged to sleeve the wiring harness body, and the wiring harness is in a curled state and is suitable for the interior of the household appliance with a small space, so that the adaptability of the wiring harness is improved; the comprehensive use of the flame retardant, the protective layer and the hose avoids the overtemperature of the external environment from igniting the wire harness, thereby improving the use safety of the household appliance.

Further configured to: the protective layer comprises a film adhered to the outer wall of the hose, a heat insulation layer adhered to one side, back to the hose, of the heat insulation film and a flame retardant layer adhered to the outer wall of the heat insulation layer.

Through adopting above-mentioned technical scheme, set up film cover hose outer wall, the parcel fire retardant avoids the direct contact of insulating layer and fire retardant, and the spraying insulating layer of being convenient for simultaneously sets up fire-retardant layer and improves the security performance of hose.

Further configured to: the film is provided with the graininess arch of a plurality of dorsad hose one side, the arch is the equidistance and distributes.

Through adopting above-mentioned technical scheme, the film sets up the graininess arch that a plurality of equidistance distributes, increases the area of contact of film outer wall to the sneeze of the insulating layer of being convenient for, thereby improve the inseparable degree that insulating layer and film bond, thereby improve the stability of insulating layer.

Further configured to: the outer wall of the flame-retardant layer is bonded with metal wires, and the outer wall of the metal wire layer is bonded with a wear-resistant layer.

Through adopting above-mentioned technical scheme, set up the fire-retardant layer of wire parcel, improve the holistic intensity of hose, the outer wearing layer that bonds of wire reduces the pencil when the installation and the frictional loss between the adjacent pencil, also can prevent that rodent from gnawing the hose simultaneously, makes the pencil expose outside the hose.

Further configured to: the wires are arranged in a criss-cross manner around the hose.

Through adopting above-mentioned technical scheme, the wire is the direction setting of crisscross surrounding hose to strengthen the bending resistance performance of hose, thereby improve the practicality of hose.

Further configured to: the wear-resistant layer is a polytetrafluoroethylene coating.

Through adopting above-mentioned technical scheme, polytetrafluoroethylene has good chemical stability, electrical insulation and good ageing resistance, if the bundle body appears breaking because of quality problems in the hose, the sinle silk exposes in external environment, if the unknown condition of breaking has appeared in the bundle of changing the line of maintenance workman, directly take up the hose portion with the hand, may cause dangerous accidents such as electric shock, it is the wearing layer to set up the polytetrafluoroethylene coating, polytetrafluoroethylene both has good ageing resistance, electrical insulation also has simultaneously, the improvement of very big degree the security of maintenance workman when the maintenance.

Further configured to: one end of the butt joint seat, which faces away from the hose, is fixed with a heat shrink tube, and the heat shrink tube can be in butt joint with one end of the terminal, which faces the wiring harness body.

Through adopting above-mentioned technical scheme, pyrocondensation pipe and terminal butt joint, only need during the installation with pyrocondensation pipe and terminal afterbody butt joint, use the hair-dryer to the pyrocondensation pipe heating, can accomplish the butt joint, and operation steps is simple to improve the work efficiency of workman when the butt joint, pyrocondensation pipe and terminal butt joint simultaneously, can prevent that the impurity of external environment from getting into the butt joint department of pencil and terminal from the port at hose both ends, thereby improve signal transmission's stability.

Further configured to: the terminal lateral wall protrusion is provided with the non slipping spur, the non slipping spur is the slope setting.

Through adopting above-mentioned technical scheme, the slope of terminal lateral wall is provided with the non slipping spur, when pyrocondensation pipe pyrocondensation time with the terminal butt joint, the butt joint area of non slipping spur multiplicable pyrocondensation pipe and terminal to improve the stability of pyrocondensation pipe and terminal butt joint.

To sum up, the utility model discloses a following at least one useful technological effect:

the wiring harness body is sleeved with the hose, and the wiring harness is in a curled state and is suitable for the interior of a household appliance with a small space, so that the adaptability of the wiring harness is improved; the comprehensive use of the flame retardant, the protective layer and the hose avoids the wire harness from being ignited due to overhigh external environment temperature, thereby improving the use safety of the household appliance;

through the pyrocondensation pipe with hose and terminal butt joint, only need during the installation with pyrocondensation pipe and terminal afterbody butt joint, use the hair-dryer to the pyrocondensation pipe heating, can accomplish the butt joint, the operating procedure is simple to improve the work efficiency of workman when the butt joint, pyrocondensation pipe and terminal butt joint simultaneously, can prevent that the impurity of external environment from getting into the butt joint department of pencil and terminal from the port at hose both ends, thereby improve signal transmission's stability.

Drawings

FIG. 1 is a schematic view of the overall construction of a fire-resistant wiring harness;

FIG. 2 is a partial cross-sectional view of a fire-blocking wiring harness;

fig. 3 is a sectional view taken along a-a in fig. 1.

In the figure, 1, a wire harness body; 2. a terminal; 3. a hose; 31. embedding grooves; 32. a flame retardant; 4. a protective layer; 41. a film; 411. a protrusion; 42. a thermal insulation layer; 43. a flame retardant layer; 44. a metal wire; 45. a wear layer; 5. a docking station; 51. heat shrink tubing; 52. and (4) anti-skid blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a fire prevention pencil, locate the hose 3 of pencil body 1 outer wall including pencil body 1, the terminal 2 and the cover that are fixed in pencil body 1 both ends, the both ends of hose 3 are fixed with the butt joint seat 5 that can supply terminal 2 to dock.

Referring to fig. 2, the outer wall of the hose 3 is provided with an embedding groove 31 spirally surrounding along the outer wall of the hose 3, the embedding groove 31 is filled with a fire retardant 32, the fire retardant 32 adopted in the present application is preferably aluminum hydroxide powder, and the outer wall of the hose 3 is bonded with a protective layer 4; the protective layer 4 covers the flame retardant 32, thereby preventing the flame retardant 32 from falling out of the groove.

One end of the butt joint seat 5, which is back to the hose 3, is fixed with a heat shrink tube 51, the side wall of the terminal 2 is integrally formed with an inclined anti-skid block 52, and the anti-skid block 52 protrudes out of the side wall of the terminal 2; when the heat shrinkable tube 51 is butted with the terminal 2, the heat shrinkable tube 51 can be forced to be in butt joint with the side wall of the terminal 2 by using a heat blower, and the anti-slip block 52 can increase the contact area of the heat shrinkable tube 51 and the terminal 2, so that the butt joint stability of the heat shrinkable tube 51 and the terminal 2 is improved.

Referring to fig. 3, the protective layer 4 includes a film 41 adhered to the outer wall of the hose 3, a heat insulating layer 42 adhered to the outer wall of the film 41, and a flame retardant layer 43 adhered to the outer wall of the heat insulating layer 42, and a plurality of protrusions 411 are convexly disposed on the outer surface of the film 41 and are distributed at equal intervals, so that the contact area between the heat insulating layer 42 and the outer wall of the film 41 is increased, and the heat insulating layer 42 is conveniently sprayed; the heat insulation layer 42 is an epoxy resin layer, and the epoxy resin has good heat resistance; the flame-retardant layer 43 is an acrylic resin layer, and is low in price, economical and practical.

The outer wall of the flame-retardant layer 43 is bonded with metal wires 44 which are arranged around the hose 3 in a crossed mode, the outer wall of the flame-retardant layer 43 is sprayed with a wear-resistant layer 45, the wear-resistant layer 45 covers the metal wires 44, and the wear-resistant layer 45 is a polytetrafluoroethylene coating; because polytetrafluoroethylene has good chemical stability, electrical insulation and good ageing resistance, can avoid in the hose 3 when the pencil body 1 breaks because of the quality problems appear, lead to the sinle silk to expose in the hose 3, because polytetrafluoroethylene has electrical insulation, the maintenance workman can direct contact hose 3 maintain, arrange in order the pencil in this region to improve maintenance workman's security.

The implementation principle of the embodiment is as follows: the hose 3 is sleeved with the wiring harness body 1, and the wiring harness body 1 is in a curled state and is suitable for the interior of a household appliance with a small space, so that the adaptability of the wiring harness is improved; the hose 3 prevents the wire harness body 1 from being directly exposed to the external environment, thereby improving the safety of the wire harness body 1 in use; the comprehensive use of the flame retardant 32, the protective layer 4 and the hose 3 avoids the overtemperature of the external environment from igniting the wiring harness, thereby improving the use safety of the household appliance.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a fire prevention pencil, includes pencil body (1) and is fixed in terminal (2) at pencil body (1) both ends, its characterized in that: pencil body (1) cover is equipped with hose (3), and hose (3) both ends are fixed with butt joint seat (5) and terminal (2) butt joint, and scarf joint groove (31) have been seted up to hose (3) outer wall, and scarf joint groove (31) intussuseption is filled with fire retardant (32), scarf joint groove (31) encircle along the outer wall spiral of hose (3), hose (3) outer wall bonds protective layer (4) that have cover fire retardant (32).

2. A fire protection harness as claimed in claim 1, wherein: the protective layer (4) comprises a film (41) adhered to the outer wall of the hose (3), a heat insulation layer (42) adhered to the side, opposite to the hose (3), of the heat insulation film and a flame retardant layer (43) adhered to the outer wall of the heat insulation layer (42).

3. A fire protection harness as claimed in claim 2, wherein: film (41) dorsad hose (3) one side is provided with a plurality of graininess arch (411), arch (411) are the equidistance and distribute.

4. A fire protection harness as claimed in claim 2, wherein: the outer wall of the flame-retardant layer (43) is bonded with a metal wire (44), and the outer wall of the metal wire (44) is bonded with a wear-resistant layer (45).

5. A fire protection harness as claimed in claim 4, wherein: the wires (44) are arranged around the hose (3) in a crossed manner.

6. A fire protection harness as claimed in claim 4, wherein: the wear-resistant layer (45) is a polytetrafluoroethylene coating.

7. A fire protection harness as claimed in claim 1, wherein: one end, back to the hose (3), of the butt joint seat (5) is fixed with a heat shrink tube (51), and the heat shrink tube (51) can be in butt joint with one end, facing the wiring harness body (1), of the terminal (2).

8. A fire protection harness as claimed in claim 7, wherein: the terminal (2) side wall protrusion is provided with non-slip block (52), non-slip block (52) are the slope setting.

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