A multi-core torsion-resistant charging cable

Abstract

The present invention discloses a multi-core torsion-resistant charging cable, which relates to the field of torsion-resistant cables, including a cable core, an outer wall of the cable core is provided with an insulating layer, an outer wall of the insulating layer is provided with an adjusting component, an outer wall of the adjusting component is provided with a heat dissipation layer, a plurality of tensile components are evenly distributed on the outer wall of the heat dissipation layer, an outer wall of the tensile component is provided with an anti-torsion layer, and an outer wall of the anti-torsion layer is provided with a protective layer. By moving a sliding part inside a limiting part, on the one hand, the overall torque of the cable can be reduced, the increase in the length of the wire can be prevented, and the increase in the resistance value can be avoided, thereby ensuring the performance of the cable. On the other hand, when the cable encounters an obstacle, the sliding part moves inside the limiting part to cross the obstacle, thereby avoiding damage to the cable, thereby improving the cable's anti-drag capability.

Description

Technical Field

[0001] The invention relates to the field of torsion-resistant cables, and in particular to a multi-core torsion-resistant charging cable. Background Art

[0002] The charging cable is a cable specially used to connect electric vehicles and charging equipment. It is mainly used to transmit electrical energy and data information. During the use of the charging cable, the charging cable will inevitably be twisted and bent. Over time, with the aging of the material or improper operation of the user, bulging may appear in some areas of the cable. The cable insulation core in the bulging area may have been dislocated and twisted and deformed.

[0003] The Chinese patent application number CN202410338887.9 discloses a multi-core torsion-resistant charging cable, including a cable core, the cable core including a torsion-resistant ventilation skeleton and a plurality of conductors; the cross section of the torsion-resistant ventilation skeleton is snowflake-shaped; the above invention sets a torsion-resistant ventilation skeleton, when the torsion force of the cable exceeds the torsion force that the torsion sleeve can absorb, the metal conductor will pass through the outer convex part of the torsion-resistant ventilation skeleton, and rotate slightly along the circumferential direction of the central through hole, the outer convex part will produce micro-deformation, the first torsion-resistant through hole will be compressed and deformed, the first torsion-resistant through hole will be used as the displacement path when the side wall of the outer convex part is displaced, so as to achieve the effect of buffering and avoiding, the second torsion-resistant through hole will be torsionally deformed, further reducing the hard torsion damage of the metal conductor of the outer convex part, the conductor in the central through hole is almost not affected by the torsion force, so that the torsion-resistant ventilation skeleton has the effect of flexible buffering and adjusting the position of the metal conductor, avoiding the situation that the traditional cable core skeleton causes damage to the metal conductor by hard resistance and limiting. However, during the working process of this patent, the cable is in a twisted state for a long time, the cable is deformed, thereby reducing the performance of the cable, and the problems of twisting and non-reset and core line wandering and non-reset.

[0004] In the specific technical solution, when the charging cable is used, the cable is in a twisted state for a long time, and the cable is deformed, thereby reducing the performance of the cable. Excessive twisting of the cable will cause the internal wires to be tightly wound, resulting in increased wire length, increased resistance, deformation, wear, and breakage of the outer sheath, resulting in reduced insulation performance, easy short circuit, twisting and non-reset, and core wire wandering and non-reset problems.

[0005] Therefore, a multi-core torsion-resistant charging cable is invented to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a multi-core torsion-resistant charging cable, which can effectively solve the technical problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a multi-core torsion-resistant charging cable, comprising a cable core, the outer wall of the cable core is covered with an insulating layer, the outer wall of the insulating layer is covered with an adjusting component, the outer wall of the adjusting component is covered with a heat dissipation layer, the outer wall of the heat dissipation layer is evenly distributed with a plurality of tensile components, the outer wall of the tensile component is covered with an anti-torsion layer, and the outer wall of the anti-torsion layer is covered with a protective layer;

[0008] The tensile component comprises a limiter fixedly connected to the outer wall of the heat dissipation layer, a sliding member is slidably connected inside the limiter, and the center of the sliding member is fixedly connected to the inner wall of the torsion-resistant layer.

[0009] Preferably, a plurality of the anti-tensile components are arranged in a circular array on the outer wall of the heat dissipation layer, a groove is provided in each of the limit members, and limit holes are provided on both sides of each of the limit members, the limit holes are connected to the grooves, the sliding member is slidably connected in the limit holes, and a support plate is fixedly connected between two adjacent limit members distributed along the axis.

[0010] Preferably, the adjustment component comprises an adjustment member, the adjustment member is spirally fixed to the outer wall of the insulating layer, a side of the adjustment member away from the insulating layer is fixedly connected to an anti-torsion member, and the anti-torsion member is fixedly connected to the heat dissipation layer.

[0011] Preferably, the cable core comprises a power core and a plurality of control wires, and a spacer is fixedly connected to the outer wall of the power core.

[0012] Preferably, a filler is filled between the spacer and the control line.

[0013] Preferably, the limiting hole limits the sliding member from being separated from the limiting member.

[0014] Preferably, the adjusting member is arranged in an inverted V shape, and the anti-torsion member is spirally fixed inside the heat dissipation layer.

[0015] Preferably, the adjusting member and the anti-torsion member are distributed in a spiral shape in the extension direction of the cable core.

[0016] Preferably, the spacer separates the plurality of control lines.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention reduces the torsion force of the cable and prevents the torsion force from acting on the cable core by bending the adjusting part and the anti-torsion part, thereby protecting the cable core and enhancing the torsion performance of the cable. The steel of the anti-torsion part restores its original shape, corrects the cable distortion and restores it to its original state, avoids the cable from being in a twisted state for a long time, improves the insulation performance, and prevents the cable from short circuiting.

[0019] 2. The present invention enables the sliding part to move inside the limit part, which can reduce the overall torque of the cable, prevent the increase of the wire length, and avoid the increase of the resistance value, thereby ensuring the performance of the cable. On the other hand, when the cable encounters an obstacle, the sliding part moves inside the limit part to cross the obstacle, thereby avoiding damage to the cable and improving the cable's anti-drag ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the charging cable of the present invention;

[0021] Figure 2 It is an exploded schematic diagram of the internal structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the regulating component of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the organization at A in the middle;

[0024] Figure 5 It is a schematic diagram of the structure of the tensile component of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the limiting member of the present invention.

[0026] In the figure: 1. cable core; 11. power core; 12. control line; 13. spacer; 14. filler; 2. insulation layer; 3. adjustment component; 31. adjustment part; 32. anti-torsion part; 4. heat dissipation layer; 5. tensile component; 51. limit part; 52. sliding part; 53. limit hole; 54. support plate; 55. groove; 6. anti-torsion layer; 7. protective layer. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] Excessive twisting can cause the insulation performance inside the cable and the outer sheath to deform, wear, break, etc., resulting in reduced insulation performance, easy short circuit, twisting and non-reset, and core wire wandering and non-reset problems.

[0030] like Figure 1As shown, a multi-core torsion-resistant charging cable comprises a cable core 1. The outer wall of the cable core 1 is sheathed with an insulating layer 2, which insulates and protects the cable core 1. The outer wall of the insulating layer 2 is sheathed with an adjusting component 3, which can be twisted according to the degree of cable twisting to protect the cable from twisting. The outer wall of the adjusting component 3 is sheathed with a heat dissipation layer 4, which can quickly transfer the heat generated by the cable core 1. The outer wall of the heat dissipation layer 4 is evenly distributed with a plurality of tensile components 5, which can reduce the cable torque when the cable is twisted. The outer wall of the tensile component 5 is sheathed with an anti-torsion layer 6, which reduces the cable torque. The outer wall of the anti-torsion layer 6 is sheathed with a protective layer 7.

[0031] like Figures 1 to 4 As shown, the cable core 1 includes a power core 11 and multiple control lines 12. The outer wall of the power core 11 is fixedly connected with a spacer 13. The spacer 13 separates the multiple control lines 12 to avoid connection of the multiple control lines 12. A filler 14 is filled between the spacer 13 and the control line 12. The filler 14 holds the cable. The adjustment component 3 includes an adjustment member 31. The adjustment member 31 is spirally fixed to the outer wall of the insulating layer 2. The adjustment member 31 is arranged in an inverted V shape to reduce the contact area with the insulating layer 2, thereby improving the internal heat dissipation of the cable. The side of the adjustment member 31 away from the insulating layer 2 is fixedly connected with an anti-torsion member 32. The anti-torsion member 32 is made of elastically deformable steel. The elastic deformation of steel means that under the action of force, the steel will undergo a certain degree of deformation, but once the force disappears, the steel can return to its original shape. The anti-torsion member 32 is fixedly connected to the heat dissipation layer 4. The anti-torsion member 32 is spirally fixed inside the heat dissipation layer 4. The adjustment member 31 and the anti-torsion member 32 are spirally distributed in the extension direction of the cable core 1.

[0032] When the cable is twisted by external forces, the protective layer 7 drives the adjusting member 31 to twist. Since the adjusting member 31 is threaded, the cable has space to twist, and the adjusting member 31 and the anti-torsion member 32 are bent, reducing the torsional force of the cable and preventing the torsional force from acting on the cable core 1, thereby protecting the cable core 1 and enhancing the torsional force performance of the cable. At the same time, it can also adjust the problem of excessive internal temperature of the cable. The heat dissipation layer 4 absorbs the heat inside the adjusting component 3 and dissipates the heat to the outside, thereby cooling the cable and avoiding the influence of high temperature on the transmission efficiency of the cable.

[0033] When the external force stops twisting or twisting the cable, the anti-torsion member 32 steel returns to its original shape, corrects the cable distortion and returns it to its original state, avoids the cable being in a twisted state for a long time, improves the insulation performance, and prevents the cable from short-circuiting.

[0034] By bending the adjusting member 31 and the anti-torsion member 32, the torsional force of the cable is reduced, and the torsional force is prevented from acting on the cable core 1, thereby protecting the cable core 1 and enhancing the torsional force performance of the cable. The steel of the anti-torsion member 32 restores its original shape, corrects the cable distortion and restores it to its original state, avoids the cable being in a twisted state for a long time, improves the insulation performance, and prevents the cable from short circuiting.

[0035] Embodiment 2

[0036] On the basis of the above embodiments, the existing charging cable is not placed correctly during use, the cable is in a twisted state for a long time, the cable is deformed, thereby reducing the performance of the cable, and excessive twisting of the cable will cause the internal wires to be tightly wound, resulting in an increase in the wire length and an increase in resistance.

[0037] like Figures 1 to 6 As shown, the tensile component 5 includes a limiter 51 fixedly connected to the outer wall of the heat dissipation layer 4, a sliding member 52 is slidably connected inside the limiter 51, the center of the sliding member 52 is fixedly connected to the inner wall of the anti-torsion layer 6, the heat dissipation layer 4 is slidably connected to the sliding member 52, and a plurality of tensile components 5 are arranged in a circular array on the outer wall of the heat dissipation layer 4, each limiter 51 is provided with a groove 55, in the initial state, the sliding member 52 is located in the middle of the groove 55, and both sides of each limiter 51 are provided with a limit hole 53, and the limiter 51 is located on both sides of the cable circumference. The limiting hole 53 is connected with the groove 55, the sliding member 52 is slidably connected in the limiting hole 53, and the sliding member 52 can slide in the axial and circumferential directions of the cable inside the limiting hole 53. The limiting hole 53 limits the sliding member 52 from being separated from the limiting member 51. A support plate 54 is fixedly connected between two adjacent limiting members 51 distributed along the axis. The support plate 54 remains unchanged when the cable is bent by external force, thereby reducing the twisting angle of the cable. A plurality of groups of anti-tensile mechanisms are arranged in an array along the axial direction of the cable, and each anti-tensile mechanism is composed of a plurality of anti-tensile components 5 distributed in a ring array.

[0038] When the cable is twisted or twisted due to external influences, when the cable is twisted, the axial direction of the cable is twisted, and the twisting of the torsion-resistant layer 6 drives the sliding member 52 to move axially in the cable inside the limiter 51. The two adjacent sliding members 52 on the outside of the twisted part of the cable are respectively moved away from each other inside the limiter 51 to reduce the cable torque, and the two adjacent sliding members 52 on the inside of the twisted part of the cable are respectively moved close to each other inside the limiter 51, and at the same time cooperate with the support plate 54 to avoid the cable twisting angle being too small, thereby improving the cable torque resistance. When the cable is twisted, the circumferential direction of the cable changes, so that the sliding member 52 is located in the circumferential direction of the cable inside the limiter 51 and moves, thereby reducing the cable torque and improving the cable. Quality, the sliding member 52 can slide in the axial and circumferential directions of the cable inside the limiting hole 53, preventing the increase of the wire length, avoiding the increase of the resistance value, and improving the torsion flexibility of the cable. On the one hand, it can reduce the overall torque of the cable, prevent the increase of the wire length, and avoid the increase of the resistance value, thereby ensuring the performance of the cable. On the other hand, when the cable is being dragged, it encounters an uneven road surface. When the cable encounters an obstacle, the sliding member 52 moves inside the limiting member 51 to the side of the limiting member 51, and the top of the obstacle squeezes the torsion-resistant layer 6 and the protective layer 7, so that the torsion-resistant layer 6 and the protective layer 7 are recessed into the groove 55, so that they can cross the obstacle, thereby improving the cable's drag resistance and avoiding damage to the cable.

[0039] By moving the sliding member 52 inside the limit member 51, on the one hand, the overall torque of the cable can be reduced, the length of the wire can be prevented from increasing, and the resistance value can be prevented from increasing, thereby ensuring the performance of the cable. On the other hand, when the cable encounters an obstacle, the sliding member 52 moves inside the limit member 51 to cross the obstacle, thereby avoiding damage to the cable and improving the cable's anti-drag ability.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-core torsion-resistant charging cable, comprising a cable core (1), characterized in that: The outer wall of the cable core (1) is provided with an insulating layer (2), the outer wall of the insulating layer (2) is provided with an adjusting component (3), the outer wall of the adjusting component (3) is provided with a heat dissipation layer (4), the outer wall of the heat dissipation layer (4) is provided with a plurality of tensile components (5) evenly distributed, the outer wall of the tensile component (5) is provided with an anti-torsion layer (6), and the outer wall of the anti-torsion layer (6) is provided with a protective layer (7); The tensile component (5) comprises a limiter (51) fixedly connected to the outer wall of the heat dissipation layer (4), a sliding member (52) slidably connected inside the limiter (51), and a center of the sliding member (52) is fixedly connected to the inner wall of the torsion-resistant layer (6); A plurality of the tensile components (5) are arranged in a circular array on the outer wall of the heat dissipation layer (4); a groove (55) is provided in each of the limiting members (51); limiting holes (53) are provided on both sides of each of the limiting members (51); the limiting holes (53) are connected to the grooves (55); the sliding member (52) is slidably connected in the limiting holes (53); and a support plate (54) is fixedly connected between two adjacent limiting members (51) distributed along the axis; The adjustment component (3) comprises an adjustment member (31), the adjustment member (31) being fixed in a spiral shape on the outer wall of the insulating layer (2), the side of the adjustment member (31) away from the insulating layer (2) being fixedly connected to an anti-torsion member (32), the anti-torsion member (32) being fixedly connected to the heat dissipation layer (4).

2. The charging cable according to claim 1, characterized in that: The cable core (1) comprises a power core (11) and a plurality of control wires (12); a spacer (13) is fixedly connected to the outer wall of the power core (11).

3. The charging cable according to claim 2, characterized in that: A filler (14) is filled between the spacer (13) and the control line (12).

4. The charging cable according to claim 3, characterized in that: The limiting hole (53) limits the sliding member (52) from being separated from the limiting member (51).

5. The charging cable according to claim 4, characterized in that: The adjusting member (31) is arranged in an inverted V shape, and the anti-torsion member (32) is fixed in a spiral shape inside the heat dissipation layer (4).

6. The charging cable according to claim 5, characterized in that: The adjusting member (31) and the anti-torsion member (32) are distributed in a spiral shape in the extension direction of the cable core (1).

7. The charging cable according to claim 6, characterized in that: The spacer (13) separates the plurality of control lines (12).

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