Novel anti-bending liquid-cooled cable

Abstract

The utility model discloses a novel anti-bending liquid-cooled cable. The novel anti-bending liquid-cooled cable comprises a liquid passing pipe, an anti-bending plate, a power line and an outer protective layer, two ends of each liquid passing pipe are respectively communicated with a liquid supply port and a liquid return port of the cooling device, the at least two liquid passing pipes are fixedly arranged in the through holes of the outer protective layer, and the inner wall of the pipeline of each liquid passing pipe is at least movably connected with two anti-bending plates; a plurality of axial liquid passing round holes are distributed in the circumference of the anti-bending plate, and the liquid passing round holes, pipe holes of the liquid passing pipes and the cooling device form a cable liquid cooling loop; and each power line is connected to a central round hole of the anti-bending plate in the corresponding liquid passing pipe in a sleeving manner, or each power line is circumferentially fixed on the outer wall of the pipeline of the corresponding liquid passing pipe in a surrounding manner. According to the utility model, when the cable is bent, cold liquid passes through the liquid passing pipe at any time, the cable and the charging gun are controlled within a safe use temperature, and the use safety of the cable and the charging gun is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to a novel anti-bending liquid-cooling cable. Background Art

[0002] With the national policy support for new energy, electric vehicles are becoming more and more popular. In order to shorten the charging time of electric vehicles, the existing fast charging technology uses high-power DC charging. On the basis of not increasing the voltage of the vehicle platform, the charging current is increased, and the temperature of cables and electronic components rises rapidly, causing electrical components to fail and even burn in serious cases. Therefore, liquid cooling cables are produced. When charging, the liquid cooling cables transmit the heat generated to keep the cables and electronic components running within a safe temperature.

[0003] The current liquid-cooled cables have the problem of bending during charging, which has the following defects: first, once the cable is bent, the liquid pipeline is flattened, and the local high temperature of the cable will cause the cable sheath to melt, posing a safety hazard to the cable; second, the liquid at the charging gun terminal cannot flow back, and the temperature of the liquid entering the charging gun rises instantly, affecting the safety of the charging gun. Utility Model Content

[0004] In order to solve one or more of the above problems, the utility model provides a novel bending-resistant liquid-cooling cable.

[0005] According to one aspect of the utility model, the novel anti-bending liquid-cooling cable comprises: a liquid-passing pipe, an anti-bending plate, a power line and an outer protective layer;

[0006] The two ends of the liquid pipe are respectively connected to the liquid supply port and the liquid return port of the cooling device, at least two liquid pipes are fixedly arranged in the through hole of the outer protective layer, and the inner wall of each liquid pipe is movably connected to at least two anti-bending plates;

[0007] A plurality of axial liquid-passing circular holes are circumferentially distributed on the anti-bending plate, and the liquid-passing circular holes, the tube holes of the liquid-passing pipes and the cooling device form a cable liquid cooling circuit;

[0008] Each power line sleeve is connected to a central circular hole of an anti-bending plate in a liquid-passing pipe, or each power line is circumferentially fixed around the outer wall of a pipe of the liquid-passing pipe.

[0009] The new anti-bending liquid-cooled cable adopts a combination of a liquid tube and a built-in anti-bending plate. When the cable is bent during charging, the anti-bending plate will be squeezed and fixed at the part where the liquid tube becomes smaller, which plays a supporting role for the deformed cooling tube. At the same time, the anti-bending plate is evenly arranged with multiple liquid holes around the circumference to ensure that there is always cooling liquid passing through the liquid tube and the coolant in the charging gun is always in circulation. Its beneficial effects are: first, it ensures that when the cable is charged with high-power DC, even if the cable is bent, the liquid tube will not be deflated and completely blocked. There is cold liquid passing through the liquid tube at any time, and the cable is controlled within a safe operating temperature. There is no local overheating of the cable, which avoids the high-temperature melting of the cable skin, thereby enhancing the safety of the cable and solving the potential safety hazards of the cable; second, the coolant in the charging gun is always in circulation, the temperature in the charging gun is controllable, and the charging safety is good.

[0010] In some embodiments, the anti-bending plate and the inner wall of the liquid passage tube are clearance-fitted.

[0011] In some embodiments, the anti-bending plate and the liquid passage tube are unidirectionally movably connected, and the movement direction of the anti-bending plate is the same as the flow direction of the liquid in the tube hole.

[0012] In some embodiments, softened fillets are formed on both sides of the outer wall surface of the anti-bending plate.

[0013] In some embodiments, the central circular hole of the anti-bending plate and the power line are clearance-fitted.

[0014] In some embodiments, the center of the anti-bending plate is taken as the center of the array, and at least one circle of liquid-passing circular holes is evenly distributed in a circumferential array on the anti-bending plate.

[0015] In some embodiments, the power lines include a positive power line and a negative power line.

[0016] In some embodiments, the outer liquid passage tube or the outer power line is fixed inside the outer protective layer through a filler.

[0017] In some embodiments, a ground line and a plurality of signal control lines are also included; the signal control line, the ground line and the power line are arranged parallel to each other and fixed by placing fillers in the gaps.

[0018] In some embodiments, the liquid passage is circular, and the anti-bending plate is a circular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a novel anti-bending liquid-cooling cable according to the first embodiment of the utility model;

[0020] Figure 2This is a schematic diagram of a novel anti-bending liquid-cooling cable according to a second embodiment of the utility model;

[0021] Figure 3 for Figure 1 and Figure 2 A schematic front view of the anti-bending plate shown;

[0022] Figure 4 for Figure 3 A schematic cross-sectional view of the anti-bending plate shown;

[0023] Liquid passage 1, pipe inner wall 11, pipe outer wall 12;

[0024] Anti-bending plate 2, liquid-passing circular hole 20, central circular hole 21, and softened fillet 22;

[0025] Power line 3, positive power line 31, negative power line 32;

[0026] Outer protective layer 4, filler 5, ground wire 6, signal control wire 7. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] Figure 1 The figure schematically shows a novel anti-bending liquid-cooled cable according to the first embodiment of the present utility model. Figure 1 As shown, the novel anti-bending liquid-cooling cable comprises: a liquid pipe 1, an anti-bending plate 2, a power line 3 and an outer protective layer 4;

[0029] The two ends of the liquid pipe 1 are respectively connected to the liquid supply port and the liquid return port of the cooling device. At least two liquid pipes 1 are fixedly arranged in the through hole of the outer protective layer 4. The inner wall 11 of each liquid pipe 1 is movably connected to at least two anti-bending plates 2.

[0030] A plurality of axial liquid-passing circular holes 20 are distributed circumferentially on the anti-bending plate 2, and the liquid-passing circular holes 20, the tube holes of the liquid-passing tube 1 and the cooling device form a cable liquid cooling circuit;

[0031] The sleeve of each power line 3 is connected to the central circular hole 21 of the anti-bending plate 2 in a liquid-passing pipe 1 .

[0032] The power line 3 of this technical solution is immersed in the coolant in the tube hole of the liquid pipe 1.

[0033] Figure 2 The figure schematically shows a novel anti-bending liquid-cooled cable according to the second embodiment of the present utility model. Figure 2 As shown, the novel anti-bending liquid-cooled cable comprises: at least two liquid-passing pipes 1, a plurality of anti-bending plates 2, at least two power lines 3 and an outer protective layer 4;

[0034] The two ends of the liquid pipe 1 are respectively connected to the liquid supply port and the liquid return port of the cooling device. At least two liquid pipes 1 are fixedly arranged in the through hole of the outer protective layer 4. The inner wall 11 of each liquid pipe 1 is movably connected to at least two anti-bending plates 2.

[0035] A plurality of axial liquid-passing circular holes 20 are distributed circumferentially on the anti-bending plate 2, and the liquid-passing circular holes 20, the tube holes of the liquid-passing tube 1 and the cooling device form a cable liquid cooling circuit;

[0036] Each power line 3 circumferentially surrounds the outer wall 12 of the pipe fixed to the liquid pipe 1 .

[0037] The power line 3 of this technical solution is arranged outside the liquid pipe 1 and is cooled by the coolant flowing in the pipe.

[0038] In the above two embodiments, no matter the power line 3 is inside or outside the liquid tube 1, the liquid tube 1 is combined with the built-in anti-bending plate 2. When the cable is bent during charging, the anti-bending plate 2 will be squeezed and fixed at the smaller part of the liquid tube 1, which plays a supporting role for the deformed cooling tube. At the same time, the anti-bending plate 2 is evenly arranged with a plurality of liquid holes 20 in the circumferential direction to ensure that there is always cooling liquid passing through the liquid tube 1 and the coolant in the charging gun is always in circulation. Its beneficial effects are: first, it ensures that when the cable is charged with high-power DC, even if the cable is bent, the liquid tube 1 will not be completely blocked due to the collapse of the tube, and cold liquid will pass through the liquid tube 1 at any time, so that the cable is controlled within a safe use temperature, the cable has no local overheating, and the high-temperature melting of the cable skin is avoided, thereby enhancing the safety of the cable and solving the potential safety hazards of the cable; second, the coolant in the charging gun is always in circulation, the temperature in the charging gun is controllable, and the charging safety is good.

[0039] Furthermore, the anti-bending plate 2 and the inner wall 11 of the liquid passage 1 are clearance-matched. The beneficial effect is that the clearance-matching facilitates the installation and manufacturing of the two, and effectively ensures the small-size sliding of the anti-bending plate 2 in the liquid passage 1.

[0040] Preferably, the anti-bending plate 2 and the liquid-passing tube 1 are unidirectionally movable, and the movement direction of the anti-bending plate 2 is the same as the flow direction of the liquid in the tube hole. The beneficial effect is that the anti-bending plate 2 can provide good support for the cable at the bend.

[0041] Preferably, both sides of the outer wall of the anti-bending plate 2 are also formed with softened fillets 22. The beneficial effects are: the softened fillets 22 facilitate assembly without damaging tools or personnel, and the liquid passage 1 will not be damaged when the anti-bending plate 2 slides.

[0042] Preferably, the central circular hole 21 of the anti-bending plate 2 and the power line 3 are clearance-fitted. The beneficial effect is that this arrangement can obtain a better anti-bending performance.

[0043] Preferably, the center of the anti-bending plate 2 is used as the array center, and at least one circle of liquid-passing circular holes 20 are evenly distributed in a circumferential array on the anti-bending plate 2. The beneficial effect is that this arrangement can ensure the uniformity of the coolant and the smoothness when blocked, and reduce the phenomenon of complete blockage.

[0044] Preferably, the power line 3 includes a positive power line 31 and a negative power line 32, and there are two liquid tubes 1. The positive power line 31 and the negative power line 32 are respectively fixed to the central circular hole 21 of the anti-bending plate 2 in one liquid tube 1, or the positive power line 31 and the negative power line 32 are circumferentially fixed to the outer wall 12 of the pipe of the two liquid tubes 1.

[0045] Preferably, the outer liquid-passing tube 1 or the outer power line 3 is fixed in the outer protective layer 4 by means of a filler 5. The beneficial effect is that this arrangement can ensure that the position of the power line 3 does not change.

[0046] Preferably, it also includes a grounding wire 6 and several signal control wires 7; the signal control wire 7, the grounding wire 6 and the power wire 3 are arranged parallel to each other and fixed by placing a filler 5 in the gap. The beneficial effect is that this arrangement further improves the functional integration of the cable.

[0047] Preferably, the liquid-passing pipe 1 is circular, and the anti-bending plate 2 is a circular plate. The beneficial effects are: the circular setting is convenient for installation and sliding, and ensures universality and uniform load.

[0048] Preferably, the liquid-passing tube 1 is a plastic hose, and the outer protective layer 4 is an insulating layer. The beneficial effect is that the plastic hose ensures the bendability of the cable.

[0049] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. The new type of bending-resistant liquid-cooled cable is characterized by: It comprises: a liquid passage pipe (1), an anti-bending plate (2), a power line (3) and an outer protective layer (4); The two ends of the liquid passage pipe (1) are respectively connected to the liquid supply port and the liquid return port of the cooling device, at least two of the liquid passage pipes (1) are fixedly arranged in the through hole of the outer protective layer (4), and the inner wall (11) of each of the liquid passage pipes (1) is movably connected to at least two of the anti-bending plates (2); A plurality of axial liquid-passing circular holes (20) are distributed circumferentially on the anti-bending plate (2), and the liquid-passing circular holes (20), the tube holes of the liquid-passing tube (1) and the cooling device form a cable liquid cooling circuit; Each of the power lines (3) is sleeve-connected to a central circular hole (21) of the anti-bending plate (2) in one of the liquid-passing pipes (1), or each of the power lines (3) is circumferentially fixed to the outer wall (12) of the pipe of the liquid-passing pipe (1).

2. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: The anti-bending plate (2) and the inner wall (11) of the liquid passage pipe (1) are clearance-fitted.

3. The novel bending-resistant liquid-cooled cable according to claim 2 is characterized in that: The anti-bending plate (2) and the liquid passage tube (1) are unidirectionally movably connected, and the movement direction of the anti-bending plate (2) is the same as the flow direction of the liquid in the tube hole.

4. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: Softened rounded corners (22) are also formed on both sides of the outer wall surface of the anti-bending plate (2).

5. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: The central circular hole (21) of the anti-bending plate (2) and the power line (3) are clearance-fitted.

6. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: With the center of the anti-bending plate (2) as the center of the array, at least one circle of liquid-passing circular holes (20) is evenly distributed in a circumferential array on the anti-bending plate (2).

7. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: The power line (3) comprises a positive power line (31) and a negative power line (32).

8. The novel bending-resistant liquid-cooled cable according to claim 1 is characterized in that: The outer liquid passage tube (1) or the outer power line (3) is fixed inside the outer protective layer (4) via a filler (5).

9. The novel bending-resistant liquid-cooled cable according to claim 8 is characterized in that: It also includes a grounding line (6) and a plurality of signal control lines (7); the signal control line (7), the grounding line (6) and the power line (3) are arranged parallel to each other and fixed by placing the filler (5) in the gap.

10. The novel bending-resistant liquid-cooled cable according to any one of claims 1 to 9, characterized in that: The liquid passage pipe (1) is circular, and the anti-bending plate (2) is a circular plate.

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