Liquid cooling cable
By twisting the insulated wire core with the inner liquid-cooled tube to form a twisted body, and cooling liquid is circulated in the inner liquid-cooled tube, the flexibility and heat dissipation problems of the liquid-cooled cable are solved, the current carrying capacity and mechanical properties are improved, and the cable diameter and cost are reduced.
Patent Information
- Application Number
- CN202421414146.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
Existing liquid-cooled cables have shortcomings in improving current carrying capacity, mechanical and flexibility, especially the temperature reduction of the core unit and the flexibility of the cable.
The insulated wire core is twisted with the inner liquid-cooled tube to form a twisted body. The inner liquid-cooled tube is circulated with the inner liquid-cooled tube. Combined with the design of the cladding layer and shielding layer, the mechanical and flexibility of the cable are enhanced and heat is taken away through the coolant.
Improve the flexibility and heat dissipation ability of the cable, enhance the current carrying capacity of the cable, and reduce the cable diameter and cost.
Smart Images
Figure CN223051915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable manufacturing, and more specifically, to a liquid-cooled cable. Background Art
[0002] With the development of the cable industry, liquid-cooled cables have emerged. Liquid-cooled cables can reduce the heat generated by conductors under long-term or high-power operating conditions. Under the condition of conductors with the same cross-sectional area, the current-carrying capacity can be increased by nearly 3 times, improving the usage efficiency. In the existing solutions, a liquid-cooled cable can be simply understood as adding an empty tube in the cable, with the center of the empty tube passing through a coolant. The heat is carried away by the flow of the coolant to achieve a cooling effect. In the liquid-cooled cable, two groups of core units connecting the positive and negative power supplies are arranged in parallel, which will reduce the mechanical properties and flexibility of the cable.
[0003] Therefore, how to provide a cable that can reduce the temperature of the core unit and improve the mechanical properties and flexibility of the cable has become a technical problem that needs to be solved urgently in this field. Summary of the Utility Model
[0004] An object of the utility model is to provide a new technical solution for a liquid-cooled cable.
[0005] According to the first aspect of the utility model, there is provided a liquid-cooled cable, including a power component, a liquid-cooling component, and a covering component; the power component includes at least two insulated cores, each of the insulated cores includes a conductor and an insulating layer sleeving the conductor; the liquid-cooling component includes at least one inner liquid-cooling tube, the covering component includes a covering layer, and the insulated cores and the inner liquid-cooling tube are stranded to form a stranded body and then sleeved inside the covering layer; a coolant flows through the inner liquid-cooling tube.
[0006] Optionally, the number of the inner liquid-cooling tubes is one, and at least two of the insulated cores are spirally stranded on the outer periphery of the inner liquid-cooling tube.
[0007] Optionally, when the number of the inner liquid-cooling tubes is the same as the number of the insulated cores, the inner liquid-cooling tubes and the insulated cores are arranged alternately along the circumferential direction of the covering layer and stranded to form the stranded body.
[0008] Optionally, the covering layer includes at least one wrapping layer wound around the outer periphery of the stranded body, and the material of the wrapping layer is a metal foil tape, a non-woven wrapping tape, a mica tape, a polyester tape, or a polyimide film.
[0009] Optionally, the covering layer further includes an inner sheath sleeved on the outer periphery of the wrapping layer, and the material of the inner sheath is a PUR material.
[0010] Optionally, the covering layer includes an inner sheath sleeved on the outer periphery of the stranded body, and the material of the inner sheath is a PUR material.
[0011] Optionally, the covering assembly further includes an outer sheath sleeved on the outer periphery of the covering layer. An accommodation cavity is formed between the outer sheath and the covering layer, and at least one of a signal line and a PE line is disposed in the accommodation cavity.
[0012] Optionally, at least one of the inner peripheral wall and the outer peripheral wall of the covering layer is provided with a first shielding layer; and / or, at least one of the inner peripheral wall and the outer peripheral wall of the outer sheath is provided with a second shielding layer.
[0013] Optionally, the liquid cooling assembly further includes an outer liquid cooling tube disposed in the accommodation cavity. The outer liquid cooling tube circulates a coolant, and the outer liquid cooling tube and the inner liquid cooling tube are communicated with each other.
[0014] Optionally, each of the conductors is formed by stranding at least two groups of core units, and the pitch of at least one group of the core units is different from that of the other groups of the core units.
[0015] A liquid cooling cable according to the present disclosure has the following beneficial effects:
[0016] The insulated core and the inner liquid cooling tube are stranded to form a stranded body, making the insulated core have higher mechanical properties and flexibility, which makes the liquid cooling cable more flexible and less likely to be damaged during installation and use. The good flexibility enables each insulated core and the inner liquid cooling tube to be stretched and compressed when the power component is bent. This structure makes the resistance of the stranded body smaller during the bending and straightening processes, thereby improving the flexibility of the stranded body; in the stranded body, compared with a single wire of the same cross-sectional area, the insulated core has a greater tensile strength, which makes the core unit formed by stranding more durable when bearing tensile force.
[0017] The insulated core and the inner liquid cooling tube are stranded to form a stranded body, which can increase the contact area between the insulated core and the inner liquid cooling tube, improve the cooling efficiency, greatly enhance the heat dissipation capacity of the cable, so as to achieve the purpose of reducing the diameters of the cable and the inner liquid cooling tube, and correspondingly improve the current-carrying capacity of the insulated core to reduce costs.
[0018] At the same time, by circulating a coolant in the inner liquid cooling tube, the heat generated by the power component during the power-on process is quickly taken away, improving the heat dissipation effect of the cable and enhancing the current-carrying capacity of the cable.
[0019] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings
[0020] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.
[0021] Figure 1 Structural schematic diagram of the liquid-cooled cable according to the first embodiment provided by the present utility model;
[0022] Figure 2 Structural schematic diagram of the liquid-cooled cable according to the second embodiment provided by the present utility model;
[0023] Figure 3 Structural schematic diagram of the liquid-cooled cable according to the third embodiment provided by the present utility model;
[0024] Figure 4 Structural schematic diagram of the liquid-cooled cable according to the fourth embodiment provided by the present utility model;
[0025] Figure 5 Structural schematic diagram of the liquid-cooled cable according to the fifth embodiment provided by the present utility model;
[0026] Figure 6 Structural schematic diagram of the liquid-cooled cable according to the sixth embodiment provided by the present utility model.
[0027] The markings in the figure are as follows:
[0028] 10 - Insulated wire core; 11 - Conductor; 12 - Insulation layer; 13 - Inner liquid-cooled tube; 14 - Coating layer; 15 - Wrapping layer; 16 - Inner sheath; 17 - Outer sheath; 18 - Signal wire; 19 - PE wire; 20 - First shielding layer; 21 - Second shielding layer; 22 - Outer liquid-cooled tube. Detailed implementation manners
[0029] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model.
[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present utility model and its application or use.
[0031] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.
[0032] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.
[0033] A liquid-cooled cable according to the present disclosure, as Figure 1As shown, it includes a power component, a liquid cooling component, and a covering component; the power component includes at least two insulated wire cores 10, and each insulated wire core 10 includes a conductor 11 and an insulating layer 12 sleeving the conductor 11; the liquid cooling component includes at least one internal liquid cooling tube 13, the covering component includes a covering layer 14, and after the insulated wire cores 10 and the internal liquid cooling tubes 13 are stranded to form a stranded body, they are sleeved inside the covering layer 14; a coolant flows through the internal liquid cooling tubes 13.
[0034] The insulated wire cores 10 and the internal liquid cooling tubes 13 are stranded to form a stranded body, making the insulated wire cores 10 have higher mechanical properties and flexibility. This makes the liquid-cooled cable more flexible during installation and use and not easily damaged. The good flexibility enables each insulated wire core 10 and the internal liquid cooling tube 13 to be stretched and compressed when the power component is bent. This structure makes the stranded body have less resistance during the bending and straightening processes, thus improving the flexibility of the stranded body; in the stranded body, compared with a single wire of the same cross-sectional area, the insulated wire core 10 has a greater tensile strength, which makes the stranded wire core unit more durable when bearing tensile force.
[0035] The insulated wire cores 10 and the internal liquid cooling tubes 13 are stranded to form a stranded body, which can increase the contact area between the insulated wire cores 10 and the internal liquid cooling tubes 13, improve the cooling efficiency, greatly enhance the heat dissipation capacity of the cable, so as to achieve the purpose of reducing the diameters of the cable and the internal liquid cooling tubes 13, and correspondingly improve the current-carrying capacity of the insulated wire cores 10 to reduce costs.
[0036] At the same time, by flowing a coolant through the internal liquid cooling tubes 13, the heat generated by the power component during power-on can be quickly removed, improving the heat dissipation effect of the cable and enhancing the current-carrying capacity of the cable.
[0037] According to an embodiment of the liquid-cooled cable of the present disclosure, as Figure 1 shown, the number of the internal liquid cooling tubes 13 is one, and at least two of the insulated wire cores 10 are helically stranded on the outer periphery of the internal liquid cooling tube 13. So that the insulated wire cores 10 contact the internal liquid cooling tubes 13 with the largest area, and thus the insulated wire cores 10 are cooled by the flow of the coolant, improving the current-carrying capacity of the insulated wire cores 10.
[0038] According to an embodiment of the liquid-cooled cable of the present disclosure, as Figure 2 shown, when the number of the internal liquid cooling tubes 13 is the same as the number of the insulated wire cores 10, the internal liquid cooling tubes 13 and the insulated wire cores 10 are arranged alternately along the circumferential direction of the covering layer 14 and stranded to form the stranded body. So that the insulated wire cores 10 contact the internal liquid cooling tubes 13 with the largest area, and thus the insulated wire cores 10 are cooled by the flow of the coolant, improving the current-carrying capacity of the insulated wire cores 10.
[0039] According to an embodiment of the liquid-cooled cable of the present disclosure, as Figure 3 shown, the covering layer 14 includes at least one wrapping layer 15 wound around the outer periphery of the stranded body. The material of the wrapping layer 15 is a metal foil tape, a non-woven wrapping tape, a mica tape, a polyester tape, or a polyimide film. By providing the wrapping layer 15, the stranded body can be made compact and not loose, facilitating the sleeving of the stranded body within the covering layer 14. The non-woven wrapping tape and the mica tape are mainly used for winding tight, tying tight, and flame retardancy; the metal foil tape has a shielding effect; the polyester tape has high mechanical strength, excellent insulation performance, high temperature resistance, and low temperature resistance, and is an ideal wrapping material;
[0040] Specifically, as Figure 3 shown, the covering layer 14 further includes an inner sheath 16 sleeved on the outer periphery of the wrapping layer 15. The material of the inner sheath 16 is PUR material. PUR has good toughness, wear resistance, low temperature resistance, water resistance, aging resistance, acid and alkali resistance, is suitable for harsh environments such as oil stains, acid and alkali, and low temperature environments, can better meet the requirements of the cable for wear resistance, bending resistance, and flexibility, and can effectively protect the stranded elements inside the cable from being damaged during torsional bending.
[0041] According to an embodiment of the liquid-cooled cable of the present disclosure, as Figure 4 shown, the covering layer 14 includes an inner sheath 16 sleeved on the outer periphery of the stranded body. The material of the inner sheath 16 is PUR material.
[0042] According to an embodiment of the liquid-cooled cable of the present disclosure, as Figure 5 shown, the covering assembly further includes an outer sheath 17 sleeved on the outer periphery of the covering layer 14. An accommodation cavity is formed between the outer sheath 17 and the covering layer 14, and at least one of a signal line 18 and a PE line 19 is disposed in the accommodation cavity.
[0043] By disposing the signal line 18 and the PE line 19 in the accommodation cavity, it is used to improve the various functions of the liquid-cooled cable. By using the signal line 18, signal feedback and signal control are realized.
[0044] Specifically, as Figure 6 shown, at least one of the inner peripheral wall and the outer peripheral wall of the covering layer 14 is provided with a first shielding layer 20; and / or, at least one of the inner peripheral wall and the outer peripheral wall of the outer sheath 17 is provided with a second shielding layer 21.
[0045] By providing the first shielding layer 20, it is possible to prevent the magnetic field generated during the energization of the cable from interfering with the normal use of other control systems; by the first shielding layer 20 and the second shielding layer 21, it is possible to prevent the signal transmission in the signal line 18 in the cable from being distorted due to interference from other electromagnetic fields.
[0046] The PE wire 19 disposed between the first shielding layer 20 and the second shielding layer 21 is sleeved with an insulating material on its outer periphery, so that the wire is in an insulating state relative to the first shielding layer 20 and the second shielding layer 21.
[0047] Specifically, the liquid cooling assembly further includes an outer liquid cooling tube 22 disposed in the accommodating cavity. The outer liquid cooling tube 22 circulates a coolant, and the outer liquid cooling tube 22 and the inner liquid cooling tube 13 are communicated with each other.
[0048] The inner liquid cooling tube 13 can be used as the liquid inlet tube for the coolant, and the outer liquid cooling tube 22 can be used as the liquid outlet tube for the coolant, so as to timely take away the heat generated by the power assembly and improve the current-carrying capacity of the conductor 11.
[0049] According to an embodiment of the liquid-cooled cable of the present disclosure, each of the conductors 11 is formed by stranding at least two groups of core units, and the pitch of at least one group of the core units is different from that of the other groups of the core units.
[0050] Due to the different pitches, the lengths of the insulated core wires 10 stranded per unit length are different. Therefore, when an external tensile force is applied to it, at least one group is subjected to the minimum force, which makes the stranded core units more durable when bearing the tensile force.
[0051] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for the purpose of illustration and not for the purpose of limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A liquid cooling cable, characterized in that: It includes a power component, a liquid cooling component and a covering component; the power component includes at least two insulating cores, each of which includes a conductor and an insulating layer sleeved on the conductor; the liquid cooling component includes at least one inner liquid cooling tube, the covering component includes a covering layer, the insulating core and the inner liquid cooling tube are twisted together to form a twisted body and then sleeved in the covering layer; cooling liquid flows in the inner liquid cooling tube.
2. The liquid cooling cable according to claim 1, characterized in that: The number of the inner liquid cooling tube is one, and at least two of the insulating cores are spirally twisted around the outer periphery of the inner liquid cooling tube.
3. The liquid cooling cable according to claim 1, characterized in that: When the number of the inner liquid cooling tubes is the same as the number of the insulating cores, the inner liquid cooling tubes and the insulating cores are alternately arranged along the circumferential direction of the coating layer and twisted to form the twisted body.
4. The liquid cooling cable according to claim 1, characterized in that: The coating layer comprises at least one layer of wrapping layer wound around the outer periphery of the stranded body, and the material of the wrapping layer is a metal foil tape, a non-woven fabric tape, a mica tape, a polyester tape or a polyimide film.
5. The liquid cooling cable according to claim 4, characterized in that: The coating layer further comprises an inner sheath sleeved on the outer periphery of the wrapping layer, and the inner sheath is made of PUR material.
6. The liquid cooling cable according to claim 1, characterized in that: The coating layer comprises an inner sheath sleeved on the outer periphery of the twisted body, and the inner sheath is made of PUR material.
7. The liquid cooling cable according to claim 1, characterized in that: The covering component further comprises an outer sheath sleeved on the outer periphery of the covering layer, a receiving cavity is formed between the outer sheath and the covering layer, and at least one of a signal line and a PE line is arranged in the receiving cavity.
8. The liquid cooling cable according to claim 7, characterized in that: A first shielding layer is disposed on at least one of the inner circumferential wall and the outer circumferential wall of the coating layer; and / or a second shielding layer is disposed on at least one of the inner circumferential wall and the outer circumferential wall of the outer sheath.
9. The liquid cooling cable according to claim 7, characterized in that: The liquid cooling assembly also includes an external liquid cooling tube disposed in the accommodating cavity, wherein cooling liquid flows through the external liquid cooling tube, and the external liquid cooling tube and the internal liquid cooling tube are interconnected.
10. The liquid cooling cable according to claim 1, characterized in that: Each of the conductors is formed by twisting at least two groups of core units, and the pitch of at least one group of core units is different from that of the other groups of core units.