Liquid cooling cable
By twisting the wire core unit into two sets of insulated wire cores and circulating coolant in the inner sheath, the problem of insufficient mechanical and flexibility of existing liquid-cooled cables is solved, and a higher current carrying capacity and heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202421400540.4
- 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
While increasing the conductor current carrying capacity, existing liquid-cooled cables reduce the mechanical and flexibility of the cables, resulting in inflexibility and easy damage during installation and use.
By twisting the wire core unit into two sets of insulated wire cores and circulating coolant in the inner sheath, the power component is soaked as a whole in the coolant, quickly taking away heat and improving the heat dissipation effect of the cable.
It improves the mechanical and flexibility of the cable, making the power components more flexible during installation and use, and is not easily damaged, while improving the current carrying capacity and heat dissipation effect of the cable.
Smart Images
Figure CN223051914U_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. In the case of conductors with the same cross-sectional area, the current-carrying capacity can be increased by nearly 3 times, improving the usage efficiency. In existing solutions, a liquid-cooled cable can be simply understood as adding an empty tube in the cable, with a coolant flowing through the center of the empty tube. Heat is carried away by the flow of the coolant to achieve a cooling effect. In a liquid-cooled cable, two sets of core units connecting the positive and negative power supplies are arranged in parallel, which reduces 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 a first aspect of the utility model, there is provided a liquid-cooled cable, comprising a power component and an inner sheath; the power component includes at least one set of core units, each core unit is formed by twisting two insulated cores, and the insulated core includes a conductor and an insulating layer sleeved on the outer periphery of the conductor; the inner sheath sleeves the power component, and a coolant flows between the inner sheath and the insulating layer.
[0006] Optionally, the number of core units is one set. A first connection part is formed at the twisting contact of the two insulated cores, and a second connection part is formed at the contact of each insulated core with the inner wall of the inner sheath; the first connection part, the second connection part, and the power component divide the cavity of the inner sheath to form two spaced liquid-cooling channels, and a coolant flows through at least one of the liquid-cooling channels.
[0007] Optionally, it further includes an outer sheath, the outer sheath sleeves the inner sheath and forms an accommodating cavity therebetween, and at least one of a signal line and a PE line is arranged in the accommodating cavity.
[0008] Optionally, a liquid-cooling tube is arranged in the accommodating cavity, and the coolant in the liquid-cooling tube circulates with the coolant between the inner sheath and the insulating layer.
[0009] Optionally, the PE line and the signal line are respectively arranged on both sides of the power component.
[0010] Optionally, at least one of the inner peripheral wall and the outer peripheral wall of the inner sheath 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.
[0011] Optionally, the power component is formed by stranding multiple groups of the core units, and at least one group of the multiple groups of core units has a different pitch from other groups.
[0012] Optionally, at least two support members are circumferentially arranged in the cavity of the inner sheath. The first end of the support member abuts against the outer peripheral wall of the power component, the second end of the support member opposite to the first end abuts against the inner peripheral wall of the inner sheath, and the support member extends from one end to the other end in the axial direction of the liquid-cooled cable, so as to divide the cavity between the inner sheath and the power component into multiple liquid-cooling channels spaced from each other.
[0013] Optionally, the power component has multiple different pitches in the axial direction of the liquid-cooled cable.
[0014] Optionally, the material of the inner sheath is PUR material; and / or, the material of the outer sheath is PUR material.
[0015] A liquid-cooled cable according to the present disclosure has the following beneficial effects:
[0016] The core unit is formed by stranding two insulated cores, making the core unit have higher mechanical properties and flexibility, which makes the power component more flexible during installation and use and not easily damaged. The good flexibility enables each insulated core to be stretched and compressed when the power component is bent. This structure makes the power component have less resistance during the bending and straightening processes, thereby improving the flexibility of the power component; the stranding of two insulated cores makes the core unit with the same cross-sectional area have a greater tensile strength compared with a single wire, which makes the stranded core unit more durable when bearing tensile force.
[0017] Meanwhile, by circulating the coolant in the inner sheath, the power component is integrally immersed in the coolant, quickly taking away the heat generated by the power component during the energization process, improving the heat dissipation effect of the cable, and enhancing the current-carrying capacity of the cable.
[0018] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings
[0019] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.
[0020] Figure 1Schematic diagram of the liquid-cooled cable according to the first embodiment provided by the present utility model;
[0021] Figure 2 Schematic diagram of the liquid-cooled cable according to the second embodiment provided by the present utility model;
[0022] Figure 3 Schematic diagram of the liquid-cooled cable according to the third embodiment provided by the present utility model;
[0023] Figure 4 Schematic diagram of the liquid-cooled cable according to the fourth embodiment provided by the present utility model;
[0024] Figure 5 Schematic diagram of the liquid-cooled cable according to the fifth embodiment provided by the present utility model;
[0025] Figure 6 Schematic diagram of the liquid-cooled cable according to the sixth embodiment provided by the present utility model;
[0026] Figure 7 Schematic diagram of the liquid-cooled cable according to the seventh embodiment provided by the present utility model.
[0027] The markings in the figure are as follows:
[0028] 101 - inner sheath; 102 - insulated conductor core; 103 - conductor; 104 - insulating layer; 105 - first connection part; 106 - second connection part; 107 - liquid-cooling channel; 108 - outer sheath; 109 - signal wire; 110 - PE wire; 111 - liquid-cooling tube; 112 - first shielding layer; 113 - second shielding layer; 114 - support member; 115 - conductor core unit; 116 - power component. 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, numerical expressions, and numerical values of the components and steps 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 or 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 herein, 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 1 shown, includes a power component 116 and an inner sheath 101; the power component 116 includes at least one set of core units 115, and each core unit 115 is formed by stranding two insulated cores 102. The insulated core 102 includes a conductor 103 and an insulating layer 104 sleeved on the outer periphery of the conductor 103; the inner sheath 101 sleeves the power component 116, and a coolant flows between the inner sheath 101 and the insulating layer 104.
[0034] The core unit 115 is formed by stranding two insulated cores 102, making the core unit 115 have higher mechanical properties and flexibility, which makes the power component 116 more flexible and less likely to be damaged during installation and use. The good flexibility enables each insulated core 102 to be stretched and compressed when the power component 116 is bent. This structure makes the resistance of the power component 116 smaller during the bending and straightening processes, thereby improving the flexibility of the power component 116; when two insulated cores 102 are stranded, compared with a single wire of the same cross-sectional area, the core unit 115 formed by stranding has a greater tensile strength, which makes the core unit 115 formed by stranding more durable when bearing tensile force.
[0035] Meanwhile, by circulating the coolant in the inner sheath 101, the power component 116 is integrally immersed in the coolant, quickly taking away the heat generated by the power component 116 during the power-on process, improving the heat dissipation effect of the cable, and enhancing the current-carrying capacity of the cable.
[0036] In an embodiment of a liquid-cooled cable according to the present disclosure, as Figure 2 shown, the number of core units 115 is one set. The two insulated cores 102 form a first connection part 105 at the stranding contact, and each insulated core 102 forms a second connection part 106 at the contact with the inner wall of the inner sheath 101; the first connection part 105, the second connection part 106, and the power component 116 divide the cavity of the inner sheath 101 into two liquid-cooling channels 107 spaced from each other, and at least one of the liquid-cooling channels 107 has a coolant flowing through it.
[0037] One of the two insulated cores 102 is connected to the positive pole of the power supply, and the other is connected to the negative pole of the power supply. The first connection part 105, the second connection part 106, and the power component 116 divide the cavity of the inner sheath 101 into two liquid-cooling channels 107 spaced from each other. When coolants flow through both of the two liquid-cooling channels 107, one of the two liquid-cooling channels 107 serves as an inlet pipe, and the other serves as an outlet pipe. Through the circulation of the coolant, the heat generated by the power component 116 can be quickly taken away, thereby improving the current-carrying capacity of the conductor 103.
[0038] According to an embodiment of a liquid cooling cable disclosed herein, Figure 3 As shown, it also includes an outer sheath 108, and the outer sheath 108 is sleeved on the inner sheath 101 to form a receiving cavity therebetween, and at least one of a signal line 109 and a PE line 110 is arranged in the receiving cavity.
[0039] By arranging the signal line 109 and the PE line 110 in the accommodating cavity, the functions of the liquid cooling cable are improved, and the signal line 109 is used to realize signal feedback and signal control.
[0040] Specifically, Figure 4 As shown, a liquid cooling tube 111 is disposed in the accommodating cavity, and the cooling liquid in the liquid cooling tube 111 and the cooling liquid between the inner jacket 101 and the insulating layer 104 are mutually circulated.
[0041] The liquid cooling channel 107 can be used as a liquid inlet pipe for the coolant, and the liquid cooling pipe 111 can be used as a liquid outlet pipe for the coolant to promptly remove the heat generated by the power component and improve the current carrying capacity of the conductor 103 .
[0042] Specifically, Figure 3 As shown, the PE line 110 and the signal line 109 are respectively arranged on both sides of the power component 116. This can play a filling role to make the cable round.
[0043] Specifically, Figure 5 As shown, at least one of the inner circumferential wall and the outer circumferential wall of the inner sheath 101 is provided with a first shielding layer 112 ; and / or at least one of the inner circumferential wall and the outer circumferential wall of the outer sheath 108 is provided with a second shielding layer 113 .
[0044] By setting the first shielding layer 112, the magnetic field generated by the cable during the power-on process is prevented from interfering with the normal use of other control systems; by the first shielding layer 112 and the second shielding layer 113, the signal transmission in the signal line of the cable is prevented from being distorted by other electromagnetic fields.
[0045] The PE line 110 disposed between the first shielding layer 112 and the second shielding layer 113 is sheathed with an insulating material so that the PE line 110 is insulated from the first shielding layer 112 and the second shielding layer 113 .
[0046] According to an embodiment of a liquid cooling cable disclosed herein, Figure 6 and Figure 7 As shown, the power assembly 116 is formed by twisting a plurality of groups of the core units 115 , and at least one of the plurality of groups of the core units 115 has a different pitch from the other groups.
[0047] Due to different pitches, the lengths of the insulated wire cores 102 strung in per unit length are different. Therefore, when a tensile force is applied to their exteriors, at least one group is subjected to the minimum force, which makes the core unit 115 formed by stranding more durable when bearing the tensile force.
[0048] Specifically, as Figure 6 and Figure 7 shown, at least two support members 114 are circumferentially arranged in the cavity of the inner sheath 101. The first end of the support member 114 abuts against the outer peripheral wall of the power component 116, and the second end of the support member 114 opposite to the first end abuts against the inner peripheral wall of the inner sheath 101. Moreover, the support member 114 extends from one end to the other end in the axial direction of the liquid-cooled cable, so as to divide the cavity between the inner sheath 101 and the power component 116 into a plurality of liquid-cooling channels 107 spaced from each other.
[0049] The power component 116 formed by stranding multiple groups of the core units 115 is approximately circular. By providing at least two groups of support members 114, the cavity between the inner sheath 101 and the power component 116 is divided into a plurality of liquid-cooling channels 107 spaced from each other. Among them, a part of the liquid-cooling channels 107 serves as the inlet pipe for the coolant; another part serves as the outlet pipe for the coolant.
[0050] In an embodiment of a liquid-cooled cable according to the present disclosure, the power component 116 has multiple different pitches along the axial direction of the liquid-cooled cable.
[0051] At the position with a large pitch, the contact area between the insulated wire core 102 in the power component 116 and the coolant is large. Through the flow of the coolant, the temperature of the conductor 103 can be quickly reduced, and the current-carrying capacity of the conductor 103 can be improved; at the position with a small pitch, the power component 116 has the advantages of being compact and having good bending performance.
[0052] Meanwhile, when the pitch is large, the length of the insulated wire core 102 strung in per unit distance is small, saving material costs. When the pitch is small, the cable is more compact and the structure is more stable; there are multiple different pitches on the same power component 116, saving costs while ensuring that the cable is more compact and the structure is more stable.
[0053] In an embodiment of a liquid-cooled cable according to the present disclosure, the material of the inner sheath 101 is PUR material, and / or the material of the outer sheath 108 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 torsion and bending.
[0054] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.
Claims
1. A liquid cooling cable, characterized in that: It comprises a power component and an inner sheath; the power component comprises at least one group of core units, each of which is formed by twisting two insulating cores, and the insulating core comprises a conductor and an insulating layer sheathed around the conductor; the inner sheath sheathes the power component, and a coolant flows between the inner sheath and the insulating layer.
2. The liquid cooling cable according to claim 1, characterized in that: The number of the core units is a group, and the two insulating cores form a first connection part at the twisted contact, and each insulating core forms a second connection part at the contact with the inner wall of the inner sheath; the first connection part, the second connection part and the power component divide the cavity of the inner sheath into two liquid cooling channels spaced apart from each other, and cooling liquid flows in at least one of the liquid cooling channels.
3. The liquid cooling cable according to claim 1, characterized in that: It also includes an outer sheath, which is sleeved on the inner sheath to form a receiving cavity between the two, and at least one of a signal line and a PE line is arranged in the receiving cavity.
4. The liquid cooling cable according to claim 3, characterized in that: A liquid cooling tube is arranged in the accommodating cavity, and the cooling liquid in the liquid cooling tube is circulated with the cooling liquid between the inner sheath and the insulating layer.
5. The liquid cooling cable according to claim 3, characterized in that: The PE line and the signal line are respectively arranged on two sides of the power component.
6. The liquid cooling cable according to claim 3, 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 inner sheath; 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.
7. The liquid cooling cable according to claim 1, characterized in that: The power assembly is formed by twisting a plurality of groups of the core units, and at least one of the plurality of groups of the core units has a different pitch from the other groups.
8. The liquid cooling cable according to claim 7, characterized in that: At least two support members are arranged in the cavity of the inner sheath along the circumferential direction, the first end of the support member abuts against the outer circumferential wall of the power component, the second end of the support member opposite to the first end abuts against the inner circumferential wall of the inner sheath, and the support member extends from one end to the other end in the axial direction of the liquid-cooling cable to divide the cavity between the inner sheath and the power component into a plurality of liquid-cooling channels spaced apart from each other.
9. The liquid cooling cable according to claim 1, characterized in that: The power component has a plurality of groups of different pitches along the axial direction of the liquid-cooling cable.
10. The liquid cooling cable according to claim 3, characterized in that: The inner sheath is made of PUR material; and / or the outer sheath is made of PUR material.