CN216957496U

CN216957496U - Telescopic charging cable for new energy automobile

Info

Publication number: CN216957496U
Application number: CN202123210017.4U
Authority: CN
Inventors: 李京鹏; 魏英华
Original assignee: Jiutai Tianjin Intelligent Technology Co ltd
Current assignee: Jiutai Tianjin Intelligent Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-12
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a telescopic charging cable for a new energy automobile, which comprises a winding and unwinding box, wherein a hollow shaft is rotatably connected in the winding and unwinding box, a circular partition plate is rotatably connected to the outer side of the hollow shaft, the circular partition plate is fixedly connected with the inner wall of the winding and unwinding box, two through holes which are arranged in a staggered mode are formed in the side wall of the hollow shaft, the two through holes penetrate through and are fixedly connected with the same cable, and two ends of the cable are respectively wound on two sides, located on the circular partition plate, of the hollow shaft. The cable winding box is provided with the cable wound in the winding box, the cable is connected with the hollow shaft, the cable has the telescopic performance by utilizing the rotation of the hollow shaft, meanwhile, the cable can be automatically contracted and recycled in the winding box by arranging the volute spiral spring, in addition, the extensibility and the heat dissipation of the cable are enhanced by adding the tensile central line in the cable, the shielding layer weaved by longitudinally wrapping aluminum foil and copper wire, the finely-twisted anaerobic copper wire and the design of the insulating strip, and personnel can be prevented from electric shock.

Description

Telescopic charging cable for new energy automobile

Technical Field

The utility model relates to the technical field of charging cables, in particular to a telescopic charging cable for a new energy automobile.

Background

The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source, integrates advanced technologies in the aspects of power control and driving of the automobile, and is advanced in technical principle, new in technology and new in structure, wherein the pure electric automobile is a representative of the new energy automobile, energy supplement of the electric automobile is completed through charging, a charging cable is needed for charging, and the existing charging cable can basically meet daily use requirements of the new energy automobile, but has some defects and needs to be improved.

Patent document CN209729545U proposes a new energy automobile charging pile cable, which includes: the cable comprises a cable core, a shielding wire, a filling layer, a wrapping tape, a reinforcing layer and an outer sheath, wherein the wrapping tape wraps the cable core and the shielding wire, the filling layer is located in the wrapping tape, the reinforcing layer is sleeved between the wrapping tape and the outer sheath, the reinforcing layer is formed by spirally winding a metal wire outside the wrapping tape, and the outer sheath is a thermoplastic polyurethane elastomer. In the new energy automobile charging pile cable, the outer sheath is the thermoplastic polyurethane elastomer, and the material has good ultraviolet radiation resistance, cold resistance, oil resistance, acid and alkali resistance and wear resistance, and is good in flexibility and bending performance; the enhancement layer is formed by the metal wire spiral winding outside the envelope, can also guarantee the bending property of cable when guaranteeing the resistance to compression, prevents moreover that the mouse from gnawing after stinging bad outer layer and continuing to gnaw.

And in charging cable's use, be connected with charging pile usually to often set up outside charging pile, though conveniently taking like this, but nevertheless very lack to charging cable's safeguard measure, if can be when the cable uses, let the cable extension, and when not using, let the cable shorten, then can reduce the part that the cable exposes outside for a long time, make the cable receive less environmental damage, thereby possess longer life, therefore need a telescopic charging cable for new energy automobile to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a telescopic charging cable for a new energy automobile, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a telescopic charging cable for new energy automobile, is including receiving and releasing the box, receive and release the box internal rotation and be connected with the hollow shaft, the hollow shaft outside is rotated and is connected with circular baffle, circular baffle and receive and release box inner wall fixed connection, the hollow shaft lateral wall is equipped with the through-hole of two crisscross settings, two the same cable of fixedly connected with is run through to the through-hole, the cable both ends are respectively around establishing the both sides setting that is located circular baffle at the hollow shaft.

Preferably, a pin shaft is coaxially and fixedly connected with one end of the hollow shaft, a functional bin is fixedly connected to the side wall, close to the pin shaft, of the retraction box, a volute spiral spring is arranged in the functional bin, the center end of the volute spiral spring is fixedly connected with the pin shaft, and the other end of the volute spiral spring is fixedly connected with the inner wall of the functional bin.

Preferably, the other end of the hollow shaft is coaxially and fixedly connected with a circular plate, and one end, far away from the hollow shaft, of the circular plate is fixedly connected with a plurality of limiting columns which are symmetrically arranged circumferentially.

Preferably, the one end lateral wall that the function storehouse was kept away from to the box that receive and releases just is located the plectane upside fixedly connected with slide, top surface fixedly connected with spring in the slide, spring lower extreme fixedly connected with bolt, bolt and slide sliding connection, the bolt lower extreme shelters from one of them spacing post setting.

Preferably, the bolt lateral wall fixedly connected with shifting block, the slide lateral wall be equipped with shifting block assorted spout, spout upper end lateral wall be equipped with shifting block assorted draw-in groove.

Preferably, the cable comprises a plurality of twisted core wires and an inner sheath, a shielding layer and an extrusion outer cover which are sequentially wrapped outside the twisted core wires.

Preferably, a tensile central line is arranged between a plurality of twisted core wires.

Preferably, the shielding layer is a braided layer longitudinally wrapped with aluminum foil and copper wires.

Preferably, a plurality of fine-twisted oxygen-free copper wires and an insulating strip are arranged in the extrusion outer quilt and surround the shielding layer.

Compared with the prior art, the utility model has the beneficial effects that:

this telescopic charging cable for new energy automobile is through setting up the hollow shaft, can pull cable both ends and drive hollow rotating shaft and rotate, make the cable stretch out from receiving and releasing the box, through setting up spacer pin and bolt, after the cable stretches out suitable length, let the bolt shelter from the spacer pin, can restrict the rotation of hollow shaft, make the cable fixed length, through setting up the scroll spring, can no longer shelter from the spacer pin after the bolt, make the automatic shrink of cable retrieve and put in the box, and simultaneously, through set up the tensile central line in the cable, can strengthen the stretch resistance of cable, prevent that the cable from being pulled apart, the snapping, set up the shielding layer of indulging package aluminium foil and copper wire establishment, make the cable possess good extensibility and thermal diffusivity, set up the smart transposition anaerobic, make the copper wire possess good electric conductivity and thermal diffusivity, set up the insulating strip, be used for continuous with the ground wire, prevent that personnel from electrocute.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner cable structure of the retractable box of the present invention;

FIG. 3 is a schematic front sectional view of the present invention;

FIG. 4 is a schematic view of a cross-sectional structure viewed from the back of the subject application;

FIG. 5 is a schematic view of another cross-sectional backside view of the present invention;

FIG. 6 is a schematic top cross-sectional view of the present invention;

FIG. 7 is a schematic view of a slider structure according to the present invention;

fig. 8 is a schematic cross-sectional structure of the cable of the present invention.

In the figure: 1. storing and releasing boxes; 2. a hollow shaft; 3. a circular separator plate; 4. a through hole; 5. a pin shaft; 6. a functional bin; 7. a volute spiral spring; 8. a circular plate; 9. a limiting post; 10. a slide base; 11. a spring; 12. a bolt; 13. shifting blocks; 14. a chute; 15. a card slot; 16. twisting the core wires; 17. an inner protective layer; 18. a shielding layer; 19. extruding the outer cover; 20. a tensile centerline; 21. finely twisting the oxygen-free copper wire; 22. an insulating strip.

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. 1-8, an embodiment of the present invention:

a telescopic charging cable for a new energy automobile comprises a retractable box 1, a hollow shaft 2 is rotationally connected in the retractable box 1, a pin shaft 5 is coaxially and fixedly connected with one end of the hollow shaft 2, a functional bin 6 is fixedly connected with the side wall of the retractable box 1 close to the pin shaft 5, a volute spring 7 is arranged in the functional bin 6, the center end of the volute spring 7 is fixedly connected with the pin shaft 5, the other end of the volute spring 7 is fixedly connected with the inner wall of the functional bin 6, the volute spring 7 is arranged, when the cable extends out of the retractable box 1, the hollow shaft 2 is driven to rotate, the hollow shaft 2 drives the center end of the volute spring 7 to rotate through the pin shaft 5, the volute spring 7 is enabled to generate elastic deformation and store elastic potential energy, then, when the cable is required to be retracted, the elastic potential energy stored by the volute spring 7 starts to be released, the pin shaft 5 is driven to rotate, the pin shaft 5 drives the hollow shaft 2 to rotate, the hollow shaft 2 drives the cable to be reeled back to the storage box 1.

The other end of the hollow shaft 2 is coaxially and fixedly connected with a circular plate 8, one end of the circular plate 8, which is far away from the hollow shaft 2, is fixedly connected with a plurality of limiting posts 9 which are symmetrically arranged circumferentially, one end side wall of the retraction box 1, which is far away from the function bin 6, is positioned on the upper side of the circular plate 8, is fixedly connected with a slide seat 10, the inner top surface of the slide seat 10 is fixedly connected with a spring 11, the lower end of the spring 11 is fixedly connected with a bolt 12, the bolt 12 is in sliding connection with the slide seat 10, the lower end of the bolt 12 shields one of the limiting posts 9, through the arrangement of the limiting posts 9 and the bolt 12, when the bolt 12 is vertically inserted between two adjacent limiting posts 9, the rotation of the circular plate 8 is limited, so that the hollow shaft 2 cannot rotate in the retraction box 1, when the bolt 12 is moved to not shield the limiting post 9, the circular plate 8 is restored to rotate, the hollow shaft 2 can also freely rotate in the retraction box 1, and the side wall of the bolt 12 is fixedly connected with a shifting block 13, slide 10 lateral wall is equipped with and dials 13 assorted spout 14, spout 14 upper end lateral wall is equipped with and dials 13 assorted draw-in groove 15, through set up draw-in groove 15 at spout 14 upper end lateral wall, can vertical promotion shifting block 13 earlier, shifting block 13 removes to being close to behind draw-in groove 15 in spout 14, level promotes shifting block 13 again, shifting block 13 relies on bolt 12 to rotate to embedding draw-in groove 15 in, at this moment, under spring 11's effect, shifting block 13 can be fixed in draw-in groove 15, bolt 12 just also fixes in slide 10 of income, can not shelter from spacing post 9, also can not hinder the rotation of plectane 8 and hollow shaft 2.

The outer side of the hollow shaft 2 is rotatably connected with a circular partition plate 3, the circular partition plate 3 is fixedly connected with the inner wall of the winding and unwinding box 1, the side wall of the hollow shaft 2 is provided with two through holes 4 which are arranged in a staggered mode, the two through holes 4 penetrate through and are fixedly connected with the same cable, two ends of the cable are respectively arranged on two sides of the hollow shaft 2, which are positioned on the circular partition plate 3, the cable comprises a plurality of core wire pair twists 16, an inner protection layer 17, a shielding layer 18 and an extrusion outer cover 19 which are sequentially wound outside the core wire pair twists 16, a tensile central line 20 is arranged between the core wire pair twists 16, the tensile central line 20 is arranged, when the cable is stretched, the strength of the tensile central line 20 can prevent the cable from being pulled apart or broken, the shielding layer 18 is a braid which longitudinally wraps aluminum foil and copper wire, and the shielding layer 18 which is woven by arranging the aluminum foil and the copper wire enables the cable to have good ductility and good thermal conductivity of the aluminum foil, promote the anti crooked and heat dissipation function of cable, be equipped with a plurality of essence hank anaerobic copper silk threads 21 and an insulating strip 22 that encircle the setting of shielding layer 18 in the extrusion outer 19, through setting up the essence and hank anaerobic copper silk threads 21, utilize anaerobic copper's high strength and high thermal conductivity's characteristic, improve the corresponding characteristic of cable, through setting up insulating strip 22 for make the cable meet with the ground wire, can prevent to a certain extent that personnel from electrocuteeing.

The working principle is as follows: when the cable needs to be lengthened and the length of the cable is fixed, the shifting block 13 is firstly embedded into the clamping groove 15, so that the bolt 12 does not shield the limiting columns 9, then the two ends of the cable are simultaneously pulled, the cable starts to drive the hollow shaft 2 to rotate in the retraction box 1, so that the parts of the cable, which are positioned at the two ends of the circular partition plate 3, respectively extend outwards from the two openings of the retraction box 1, meanwhile, one end of the hollow shaft 2 drives the center of the volute spring 7 to rotate through the pin shaft 5 and generate elastic deformation to store elastic potential energy, the other end of the hollow shaft 2 drives the limiting columns 9 to rotate through the circular plate 8, when the cable extends to a proper length, the shifting block 13 is shifted, so that the shifting block 13 leaves the clamping groove 15 and corresponds to the sliding groove 14, at the moment, the elastic potential energy of the spring 11 compressed by the bolt 12 is released to push the bolt 12 to move downwards to be inserted between the two adjacent limiting columns 9, so that the rotation of the circular plate 8 is limited, and the rotation of the hollow shaft 2 is limited, the extension length of the cable is fixed.

When the cable needs to be retracted into the retractable box 1, the shifting block 13 is vertically pushed, the shifting block 13 moves upwards in the sliding groove 14 and drives the bolt 12 to move upwards in the sliding seat 10, meanwhile, the bolt 12 extrudes the spring 11, the spring 11 is stressed to generate elastic deformation compression, after the shifting block 13 moves to the top end of the sliding groove 14, the shifting block 13 is horizontally pushed, the shifting block 13 rotates to be embedded into the clamping groove 15 by virtue of the bolt 12, at the moment, the bolt 12 cannot move up and down in the sliding seat 10 any more, and the bolt 12 does not shield the limit post 9 any more, so that in the cable extending step, elastic potential energy generated by the volute spring 7 is released to drive the pin shaft 5 to rotate, the pin shaft 5 drives the hollow shaft 2 to rotate, the hollow shaft 2 drives two ends of the cable to be wound and retracted into the retractable box 1, and then the cable is retracted.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a telescopic charging cable for new energy automobile, is including receiving and releasing box (1), its characterized in that: receive and release box (1) internal rotation and be connected with hollow shaft (2), hollow shaft (2) outside is rotated and is connected with circular baffle (3), circular baffle (3) with receive and release box (1) inner wall fixed connection, hollow shaft (2) lateral wall is equipped with two through-hole (4) that set up crisscross, two through-hole (4) run through the same cable of fixedly connected with, the cable both ends are respectively around establishing the both sides setting that is located circular baffle (3) in hollow shaft (2).

2. The retractable charging cable for the new energy automobile as claimed in claim 1, wherein: the coaxial fixedly connected with round pin axle (5) of hollow shaft (2) one end, the lateral wall fixedly connected with function storehouse (6) that receive and releases box (1) and be close to round pin axle (5), be provided with spiral spring (7) in function storehouse (6), the center end and the round pin axle (5) fixed connection of spiral spring (7), the other end and the function storehouse (6) inner wall fixed connection of spiral spring (7).

3. The retractable charging cable for the new energy automobile as claimed in claim 2, wherein: the hollow shaft is characterized in that the other end of the hollow shaft (2) is coaxially and fixedly connected with a circular plate (8), and one end, far away from the hollow shaft (2), of the circular plate (8) is fixedly connected with a plurality of limiting columns (9) which are symmetrically arranged in the circumferential direction.

4. The retractable charging cable for the new energy automobile as claimed in claim 3, wherein: receive and release one end lateral wall that box (1) kept away from function storehouse (6) and be located plectane (8) upside fixedly connected with slide (10), top surface fixedly connected with spring (11) in slide (10), spring (11) lower extreme fixedly connected with bolt (12), bolt (12) and slide (10) sliding connection, bolt (12) lower extreme shelters from one of them spacing post (9) setting.

5. The retractable charging cable for the new energy automobile as claimed in claim 4, wherein: bolt (12) lateral wall fixedly connected with shifting block (13), slide (10) lateral wall is equipped with and shifts block (13) assorted spout (14), spout (14) upper end lateral wall is equipped with and shifts block (13) assorted draw-in groove (15).

6. The retractable charging cable for the new energy automobile as claimed in claim 1, wherein: the cable comprises a plurality of core wire pair twists (16), an inner protection layer (17) wrapped outside the core wire pair twists (16), a shielding layer (18) and an extrusion outer cover (19) in sequence.

7. The retractable charging cable for the new energy automobile as claimed in claim 6, wherein: tensile central lines (20) are arranged among the core wire pair twists (16).

8. The retractable charging cable for the new energy automobile as claimed in claim 6, wherein: the shielding layer (18) is a braided layer longitudinally wrapped with aluminum foil and copper wires.

9. The retractable charging cable for the new energy automobile as claimed in claim 6, wherein: a plurality of fine-twisting oxygen-free copper wires (21) and an insulating strip (22) which are arranged around the shielding layer (18) are arranged in the extrusion outer cover (19).