Dual split cable magnetic decoupling device, cable system, method of manufacture and method of assembly

Abstract

The application relates to a double-split cable magnetic decoupling device, a cable system, a manufacturing method and an assembling method, which are applied to the field of electromagnetic compatibility technology. The device comprises a magnet with at least one annular through hole for the double-split cable to pass through, and a gap is formed between the inner wall of the annular through hole and the outer edge of the double-split cable; wherein the magnet is made of high magnetic permeability material, so that the interference magnetic field generated by the double-split cable can be absorbed by the magnet. Through the annular structure setting of the magnet and the selection of the high magnetic permeability material, the magnetic field distribution around the cable is optimized, so that the magnetic ring can effectively guide and concentrate the current, and the mutual magnetic field interference between the cables is inhibited. The material of the magnetic ring is selected to be high-permeability material, which has excellent magnetic performance and can effectively inhibit the radiation and interference of high-frequency signals in a wide frequency band range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electromagnetic compatibility technology, in particular to a double split cable magnetic decoupling device, a cable system, a manufacturing method and an assembly method. BACKGROUND

[0002] The cable transmission mode has high reliability and is not easily affected by external environment and climate factors, saves land space and improves the neatness and beauty of the city. The transmission capacity of a single high-voltage cable cannot meet the growing load demand. Therefore, it is necessary to improve the carrying capacity of the cable.

[0003] Using double split cables for transmission is the most effective method to improve transmission capacity. When using double split (parallel) cables for power transmission, the transmission current of the two parallel sub-cables will be unbalanced due to factors of the line itself, including line differentiation caused by path length and manufacturing process differences, impedance asymmetry caused by electromagnetic coupling relationship between multiple cable phases, and other factors that are difficult to completely avoid.

[0004] The parallel split cables may cause different degrees of insulation aging and life differentiation of the two parallel sub-cables under unbalanced operating conditions, and even directly cause thermal breakdown. Due to the complex electromagnetic relationship between the cables, the current-carrying capacity of the parallel cable line may be different, and this current imbalance may affect the normal operation of power equipment.

[0005] Therefore, a device is needed to suppress electromagnetic coupling between double split cables to reduce the unbalance of double split cables and increase the operating stability of the double split cable power transmission system. SUMMARY

[0006] Therefore, it is necessary to provide a double split cable magnetic decoupling device, a manufacturing method, a cable system and an assembly method to solve the problem that electromagnetic coupling exists in parallelly arranged cable products, thereby affecting the quality and reliability of electromagnetic signals and power transmission.

[0007] In a first aspect, the present application provides a double split cable magnetic decoupling device, which adopts the following technical solution:

[0008] A double split cable magnetic decoupling device includes a magnet, the magnet has at least one annular through hole for the double split cable to pass through, and a gap is formed between the inner wall of the annular through hole and the outer edge of the double split cable; wherein the magnet is made of high magnetic permeability material, so that the interference magnetic field generated by the double split cable is absorbed by the magnet.

[0009] In one embodiment, the magnet is configured in a circular shape; or the magnet is configured in an equilateral polygonal structure; and the annular through hole is located at the center of the magnet.

[0010] In one of the embodiments, the ratio of the inner diameter of the annular through hole to the diameter of the double split cable is 2-5.

[0011] In one of the embodiments, the double split cable magnetic decoupling device further comprises a magnet skeleton arranged in the magnet and a plurality of skeleton support portions, the magnet skeleton is arranged in the magnet along the axial direction of the magnet and is coaxially arranged with the magnet, and the outer wall of the magnet skeleton is spaced apart from the inner wall of the magnet; all the skeleton support portions are connected to the inner wall of the magnet skeleton and are spaced apart along the circumferential direction of the magnet skeleton, and the skeleton support portions extend along the radial direction of the magnet skeleton to support the magnet; the magnet skeleton is made of an insulating material.

[0012] In one of the embodiments, the double split cable magnetic decoupling device further comprises a plurality of air channel support members, an installation gap is formed between the magnet skeleton and the magnet, and the air channel support members are arranged in the installation gap and are uniformly distributed along the circumferential direction of the magnet skeleton; wherein the air channel support members are made of an insulating material.

[0013] In one of the embodiments, the double split cable magnetic decoupling device further comprises at least one heat dissipation fan, and the air outlet of the heat dissipation fan is arranged towards the annular through hole.

[0014] In a second aspect, the application provides a cable system, which adopts the following technical solution:

[0015] A cable system comprises the double split cable magnetic decoupling device and a double split cable, the double split cable is arranged in the annular through hole, and a spacing region is formed between each cable of the double split cable, and in the radial direction of the magnet, the size of the spacing region is less than or equal to 10% of the inner diameter of the magnet.

[0016] In a third aspect, the application provides a manufacturing method for manufacturing the double split cable magnetic decoupling device as shown in the above embodiments, which adopts the following steps:

[0017] Selecting a high magnetic permeability material and heating it to a preset temperature;

[0018] Shaping the heated material into a magnet with an annular through hole;

[0019] Cooling and hardening the shaped magnet;

[0020] Detecting the size and performance of the magnet.

[0021] In a fourth aspect, the application provides an assembly method for assembling the double split cable magnetic decoupling device to a double split cable, which adopts the following technical solution:

[0022] passing the double-bundle cable through the annular through hole of the double-bundle cable magnetic decoupling device;

[0023] adjusting the position of the double-bundle cable magnetic decoupling device in the axial direction of the double-bundle cable;

[0024] fixing the double-bundle cable magnetic decoupling device to the double-bundle cable;

[0025] performing performance testing on the double-bundle cable.

[0026] In one embodiment, the assembling method further comprises:

[0027] adding a magnetic component to the double-bundle cable magnetic decoupling device according to the performance testing result.

[0028] The double-bundle cable magnetic decoupling device described above, through the annular structure of the magnet and the selection of high magnetic permeability material, aims to optimize the magnetic field distribution around the cable, so that the magnetic ring can effectively guide and concentrate the current and suppress the mutual magnetic field interference between the cables. The material of the magnetic ring is selected from high permeability materials, which has excellent magnetic properties and can effectively suppress the radiation and interference of high-frequency signals in a wide frequency band. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a front view of a cable system in an embodiment of the present application.

[0030] Figure 2 is a perspective view of a cable system in an embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1, magnet; 11, annular through hole; 2, magnet framework; 3, framework support part; 4, air passage support; 5, installation gap; 9, double-bundle cable; 10, spacing area; 12, cooling fan. DETAILED DESCRIPTION

[0033] To make the above objectives, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0034] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0035] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise explicitly specified and limited, if there are terms "installation", "connection", "connection", "fixation" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0037] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "on" or "under" the first feature on the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intervening element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are used for explanation only and are not intended to be limiting.

[0039] Cable transmission has high reliability, is not easily affected by external environment and weather factors, saves land space, and improves the neatness and aesthetics of the city. The transmission capacity of a single high-voltage cable has not been able to meet the growing load demand. Therefore, it is necessary to improve the carrying capacity of the cable.

[0040] Using double split cables for transmission is the most effective method to increase transmission capacity. When using double split (in-phase parallel) cables for power transmission, the transmission current of the two parallel sub-cables will be unbalanced due to factors inherent in the line, including line differentiation caused by path length and manufacturing process differences, impedance asymmetry caused by the electromagnetic coupling relationship between multiple cable phases, and other factors that are difficult to completely avoid.

[0041] In-phase parallel split cables under unbalanced operating conditions can cause different degrees of insulation aging and life differentiation between the two parallel sub-cables, and even directly lead to thermal breakdown. Due to the complex electromagnetic relationship between the cables, the current-carrying capacity of the in-phase cable line may be different, and this current imbalance can affect the normal operation of power equipment.

[0042] Specifically, for different application scenarios and application requirements, the following problems may exist:

[0043] ① System failure risk: The increase in unbalance increases the probability of failure, such as cable short circuit or open circuit, which can cause the entire system to shut down, affecting the continuity of production and service.

[0044] ② High-frequency application requirements: With the development of emerging technologies such as 5G and the Internet of Things (IoT), the demand for high-frequency signal transmission is increasing, and the performance requirements for cables are also increasing, making traditional cable solutions difficult to meet these demands.

[0045] ③ Environmental requirements: Modern electronic devices are increasingly concerned about environmental protection and sustainable development, and cables and accessories that meet green environmental standards need to be developed to reduce environmental impact.

[0046] ④ Design complexity: Some existing solutions are complex in design, increasing the difficulty of system integration and raising the requirements for engineers.

[0047] ⑤Costly: The development and production of high-performance cables and accessories are costly, limiting their widespread adoption in large-scale applications.

[0048] To address these issues, various methods have been attempted in the prior art to reduce the imbalance of parallel cables, including but not limited to the following methods:

[0049] ①Cable Shielding: Using a metal shield on the outside of the cable to reduce external magnetic field interference. However, this method has limited effectiveness on mutual interference between cables.

[0050] ②Increase the distance: By increasing the physical distance between cables to reduce mutual influence. But this may lead to complex wiring and is not practical in space-limited applications.

[0051] ③Use balanced cables: such as twisted pair, by balancing the opposite signal transmission path to cancel interference. But this solution may not be suitable for all types of cables or applications.

[0052] ④Signal processing technology: Use filters or equalizers at the signal receiving end to adjust the signal. Although effective, it increases the complexity and cost of the system.

[0053] Although the above methods can reduce interference to some extent, they cannot completely eliminate electromagnetic coupling between cables, especially in high-frequency or high-power density applications. In addition, these methods may not be cost-effective or have practical limitations in implementation.

[0054] Therefore, there is a need for a more effective, more economical, and more practical technical solution to reduce the imbalance of parallel cables and improve the quality and reliability of signal and power transmission. Therefore, the present application designs a device capable of suppressing electromagnetic coupling between double split cables to reduce the imbalance of double split cables and increase the operating stability of double split cable power transmission systems.

[0055] The following will be described in detail in combination with the accompanying drawings Figures 1-2 Further detailed description of the embodiments of the present application.

[0056] Reference Figure 1 , Figure 1 The present application provides a double split cable magnetic decoupling device, which comprises a magnet 1 configured as a ring structure, the magnet 1 has at least one annular through hole 11, the double split cable 9 can be arranged in the magnet 1 through the annular through hole 11, and a gap is formed between the inner wall of the annular through hole 11 and the outer edge of the double split cable 9, so as to adjust the relative position of the double split cable 9 and the magnet 1 in the axial direction, thereby adjusting the coupling degree between the cables and optimizing the signal transmission performance.

[0057] The magnet 1 is made of high permeability material, which is selected from at least one of ferrite, silicon steel sheet or nickel-zinc ferrite, and has excellent electromagnetic characteristics, so that the interference magnetic field generated by the double split cable 9 can be transferred to the magnet 1 and the double split cable 9 is isolated from the external magnetic field.

[0058] In the present application, the double split cable magnetic decoupling device is annular and made of high permeability material, which aims to optimize the magnetic field distribution around the double split cable 9, so that the magnetic ring can effectively guide and concentrate the current and suppress the mutual magnetic field interference between the cables. The material of the magnetic ring is selected from high permeability material, which has excellent magnetic properties and can effectively suppress the radiation and interference of high frequency signals in a wide frequency band.

[0059] In the embodiments of the present application, only one annular through hole 11 is provided on the magnet 1, and three separate cables are provided in each group of double split cables 9, which are arranged in parallel with each other. In other embodiments, for a multi-layer cable system, the magnet 1 can also have a plurality of annular through holes 11, and the double split cables 9 of different layers pass through different annular through holes 11 on the magnet 1, so as to ensure that the electromagnetic coupling effect of each layer of double split cables 9 is optimal. In addition, all the annular through holes 11 are gathered at the center of the magnet 1, so that the magnetic field formed by the double split cables 9 can be uniformly distributed, and the mutual interference between the cables can be significantly reduced, and the signal transmission efficiency can be improved.

[0060] Continuing to refer to Figure 1 In some embodiments, the magnet 1 is configured in a circular shape, so that the magnetic field generated by the double split cable 9 can achieve uniform magnetic field distribution and significantly reduce electromagnetic interference between the cables. In other embodiments, the magnet 1 can also be configured in an elliptical structure; in other embodiments, the magnet 1 can also be configured in an equilateral polygonal structure, and the equilateral arrangement can also ensure the uniform distribution of the magnetic field generated by the double split cable 9.

[0061] In actual production, the operator can optimize the size of the magnet 1 according to the diameter and number of the cable conductors to improve the uniformity of the magnetic field distribution and reduce the electromagnetic interference between the cables as much as possible. In the embodiments of the present application, the ratio of the inner diameter of the annular through hole 11 on the magnet 1 to the diameter of the double split cable 9 is 2 to 5 times, so as to ensure the electromagnetic coupling effect.

[0062] In combination with Figure 2 As shown in the drawings, Figure 2A perspective view of the cable system in an embodiment of the present application is shown. In some embodiments, the double-bundle cable magnetic decoupling device further comprises a magnet skeleton 2 and a plurality of skeleton support portions 3 installed in the magnet 1. The magnet skeleton 2 and the skeleton support portions 3 are located in the annular through hole 11, thereby achieving the connection and fixation between the double-bundle cable magnetic decoupling device and the double-bundle cable 9.

[0063] Specifically, the magnet skeleton 2 is configured as a ring structure that is different in size from the magnet 1 and is consistent with the shape of the magnet 1. The magnet skeleton 2 is arranged in the magnet 1 along the axial direction of the magnet 1 and is coaxially arranged with the magnet 1. For ease of illustration, referring to FIG. 1, three skeleton support portions 3 are arranged in each double-bundle cable magnetic decoupling device. Figure 2 As shown, the three skeleton support portions 3 are connected to the inner wall of the magnet skeleton 2 and are uniformly distributed along the circumferential direction of the magnet skeleton 2. The skeleton support portions 3 extend along the radial direction of the magnet skeleton 2 and are collectively abutted to the outer side wall of the double-bundle cable 9, thereby achieving effective fixation of the double-bundle cable magnetic decoupling device.

[0064] In addition, in order to ensure the stability of the magnet 1 in the cable system, the magnet skeleton 2 and the skeleton support portions 3 are configured as adjustable structures in the present application. The skeleton support portions 3 include an arc-shaped plate for fitting the periphery of the double-bundle cable 9 and an extension plate for connecting the arc-shaped plate to the inner wall of the magnet skeleton 2. The extension plate extends along the radial direction of the magnet skeleton 2.

[0065] The extension plate and the arc-shaped plate, and the extension plate and the magnet skeleton 2 can be connected in a detachable manner, so that the overall size of the skeleton support portions 3 in the radial direction of the magnet skeleton 2 is adjustable, thereby adapting to the assembly requirements of double-bundle cables 9 of different sizes, and enabling the entire cable system to still work stably under high vibration or other extreme conditions.

[0066] Furthermore, the skeleton support portions 3 are configured as adjustable structures, which can facilitate the operator to move the double-bundle cable magnetic decoupling device along the axial direction of the double-bundle cable 9 on the double-bundle cable 9, thereby adapting to the installation requirements of double-bundle cables 9 of different lengths.

[0067] Further, in other embodiments, after the magnet skeleton 2 is sleeved into the magnet 1 along the axial direction of the magnet 1, an installation gap 5 is formed between the outer wall of the magnet skeleton 2 and the inner wall of the magnet 1. The double-bundle cable magnetic decoupling device further comprises a plurality of air channel support members 4 arranged in the installation gap 5.

[0068] Specifically, all the air channel supports 4 are configured as long strip structures and extend along the axial direction of the magnet 1. In the circumferential direction of the magnet 1, the air channel supports 4 are spaced apart from each other and equidistantly distributed, thereby fixing the relative position between the magnet framework 2 and the magnet 1 and ensuring the stability of the magnet 1. In addition, due to the arrangement of the air channel supports 4, a plurality of air channels extending along the axial direction of the double-split cable 9 are formed between the magnet framework 2 and the magnet 1, which can effectively improve the heat dissipation effect of the cable system.

[0069] In the embodiments of the present application, the magnet framework 2 and the air channel support 4 are both made of insulating materials, which can be but are not limited to lightweight high-strength plastic or wooden materials. Therefore, while reducing the self-weight of the double-split cable magnetic decoupling device and improving the durability of the double-split cable magnetic decoupling device, the voltage and current between the magnet 1 and the double-split cable 9 can also be isolated, thereby achieving safety protection for the operating site personnel and equipment and effectively ensuring the stable operation of the cable system.

[0070] In other embodiments, the double-split cable magnetic decoupling device as shown in the present application can also be extended to the broadband balun design in wireless communication systems, and the performance of the radio frequency front end is optimized by using a ferrite magnetic ring. In high-power transmission applications, the design of the double-split cable magnetic decoupling device not only can reduce signal distortion, but also can reduce the size of the device, thereby solving the size problem in low-frequency signal transmission.

[0071] In addition, in some embodiments, the double-split cable magnetic decoupling device integrates real-time monitoring and fault warning functions (not shown), and the system state is monitored in real time by the built-in temperature and electromagnetic sensors (not shown), thereby ensuring the long-term stable operation of the system under high load, providing maintenance and replacement suggestions, and improving the reliability of the overall system.

[0072] In combination with Figure 1 and Figure 2 As shown in the present application, in some embodiments, the present application also provides a cable system, which comprises the double-split cable magnetic decoupling device as shown in any of the above embodiments and the double-split cable 9. In the embodiments of the present application, the length of the double-split cable magnetic decoupling device is designed to cover 20%-30% of the total length of the double-split cable 9, so as to ensure the effective suppression of electromagnetic interference in the signal transmission process.

[0073] Specifically, the double-split cable 9 is composed of three independent cables in parallel. When viewed along the axial direction of the double-split cable 9, the cables in the double-split cable 9 are arranged in a “pin” shape, and the center distance between adjacent cables is kept at a certain interval, and together with other cables, the blank interval region 10 is formed. In the radial direction of the magnet 1, the size of the interval region 10 is less than or equal to 10% of the inner diameter of the magnet 1, so as to ensure uniform signal distribution.

[0074] In addition, the operator can also adjust the arrangement of the cables in the double-split cable magnetic decoupling device according to the actual needs of frequency and current, to further improve the electromagnetic coupling effect between the cables and reduce the unbalance. For different frequency signal transmission needs, the position of the double-split cable magnetic decoupling device can be adjusted in real time by an automatic adjustment system (not shown) to ensure optimal performance under different working conditions.

[0075] In other embodiments, for more complex cable systems, the application also proposes an adjustable double-double-split cable magnetic decoupling device (not shown), which is suitable for application scenarios that require dynamic adjustment of electromagnetic fields, such as magnetic confinement nuclear fusion devices. The double magnetic ring design can flexibly control the electromagnetic field characteristics by adjusting the relative position of the magnetic rings, further reducing the unbalance and electromagnetic interference of the cables.

[0076] In practical applications, one of the magnetic rings is used for the signal transmission layer of the cable, and the other is used for the shielding and interference suppression layer. The double magnetic rings can work together to optimize different frequency band signal transmission requirements, further reducing electromagnetic interference and signal attenuation.

[0077] The double magnetic ring design can be applied to vacuum and non-vacuum environments, and by adjusting the magnetic field strength and direction, the transmission signals of parallel cables can be optimized and controlled. By modulating the magnetic field strength, the application can further reduce the coupling distortion of different frequency signals, ensuring the reliability of the system in high electromagnetic environments.

[0078] The above-mentioned cable system has a simple overall structure and adopts a modular design, which is easy to integrate into existing cable systems and simplifies the installation process. In addition, compared with other electromagnetic compatibility solutions, the magnetic ring has low production cost and is easy to mass-produce, suitable for various scale applications. It performs excellently in various environmental conditions, including high temperature, low temperature and humid environment, ensuring long-term reliable operation.

[0079] In addition, under high load conditions of parallel cables, the heat inside the cable cannot be effectively dissipated, which may cause aging and degradation of the cable insulation material, increasing the potential safety risk. Moreover, under varying load conditions, uneven current distribution between cables can cause some cables to be overloaded, further exacerbating cable heating and reducing overall system efficiency. Unbalanced current distribution and overheating can significantly reduce the service life of power equipment such as transformers, switchgear, etc., thereby increasing maintenance and replacement costs.

[0080] To solve the above problems, in some other embodiments, the cable system is also specially designed for heat dissipation, i.e., the cable system further comprises an active heat dissipation system, such as a micro heat dissipation fan 12 or a heat pipe heat dissipation device. The heat dissipation fan 12 is installed on the inner side of the magnet 1, and the size and type of the heat dissipation fan 12 are selected according to the heat management requirements of the magnetic ring, and the installation position is calculated in detail to ensure that the heat can be effectively conducted and dissipated in time. This design is especially suitable for high-power and high-frequency signal transmission scenarios, and can significantly reduce the operating temperature of the double-split cable magnetic decoupling device and prolong its service life.

[0081] In actual assembly, the power supply design of the heat dissipation fan 12 needs to be stable and controlled for noise and vibration to ensure that its operation will not generate additional electromagnetic interference to the cable system. The heat dissipation path is optimized by thermal simulation to ensure that the heat can be efficiently transferred from the double-split cable magnetic decoupling device to the heat dissipation system, and to maintain the stability of the double-split cable magnetic decoupling device in a long-term high-temperature operating environment. The close combination of the heat dissipation design and the double-split cable magnetic decoupling device also needs to consider the convenience of maintenance and replacement to ensure the operability and safety of the system.

[0082] In some embodiments, the present application also provides a manufacturing method, specifically a manufacturing method for manufacturing the double-split cable magnetic decoupling device as shown in the above embodiments, which comprises the following steps:

[0083] Step S11: selecting and heating a high magnetic permeability material to a preset temperature;

[0084] Step S12: shaping the heated material into a magnet 1 with an annular through hole 11;

[0085] Step S13: cooling and hardening the shaped magnet 1;

[0086] Step S14: detecting the size and performance of the magnet 1.

[0087] In step S11: the operator selects a high magnetic permeability material according to the performance requirements of the double-split cable 9, and heats the high magnetic permeability material to an appropriate temperature to improve the formability of the material. The high magnetic permeability material can be a ferrite material (such as MnZn ferrite) to ensure that it can maintain low magnetic permeability and high resistivity at high frequencies, effectively reducing signal attenuation and electromagnetic interference.

[0088] In step S12: using a mold to shape the heated high magnetic permeability material into a magnet 1 with a ring-shaped through hole 11, ensuring the quality of the shaping. Specifically, when manufacturing the magnet 1, the powder metallurgy process is used to shape the ferrite material. First, the ferrite powder is mixed with a binder, then pressed into a ring-shaped structure through a precision mold, and finally sintered in a high-temperature furnace to ensure the structural integrity and magnetic properties of the magnet 1.

[0089] In step S13: the shaped magnet 1 is cooled and hardened to ensure its mechanical strength and stability, thereby ensuring the overall structural strength of the double-split cable magnetic decoupling device.

[0090] In step S14: the double-split cable magnetic decoupling device is subjected to size and performance testing to ensure that it meets the design requirements, including magnetic permeability, mechanical strength, and electromagnetic characteristics.

[0091] In the above embodiments, through the selection of high magnetic permeability materials, precise structural design, and stable fixing mechanism, not only the electromagnetic compatibility (EMC) of the cable system is effectively improved, but also the signal transmission quality is optimized, especially suitable for high-speed communication, industrial automation, automotive electronics, and avionics fields, with wide application prospects.

[0092] Specifically, the double-split cable magnetic decoupling device is particularly suitable for application scenarios that require high data transmission rates and low signal attenuation, such as the following fields: high-speed communication systems: ensuring that signals remain low attenuation and distortion during transmission, improving the reliability of data transmission. Precision electronic equipment: in high-precision electronic equipment, reduce electromagnetic interference, ensure the stable operation of the system. Power systems: effectively suppress electromagnetic interference in power systems, improve power quality, and reduce the risk of damage to equipment. Data communication: in data centers and communication infrastructure, ensure the efficiency and stability of signal transmission. Industrial automation: in industrial control systems, reduce interference, improve the efficiency and reliability of equipment. Automotive electronics: in automotive electronic devices, reduce electromagnetic interference, ensure the stability of critical systems (such as braking, navigation, and power systems). Avionics: in aerospace equipment, reduce electromagnetic interference, improve system safety and reliability.

[0093] In some other embodiments, the present application also provides an assembly method for assembling the double-split cable magnetic decoupling device as shown in any of the above embodiments to the double-split cable 9, which specifically includes the following steps:

[0094] Step S21: threading the double-split cable 9 through the ring-shaped through hole 11 of the double-split cable magnetic decoupling device;

[0095] Step S22: adjusting the position of the double-split cable magnetic decoupling device in the axial direction of the double-split cable 9;

[0096] Step S23: Fixing the double-bundle cable magnetic decoupling device on the double-bundle cable 9;

[0097] Step S24: Performance testing of the double-bundle cable 9.

[0098] In step S22: Adjust the position of the double-bundle cable magnetic decoupling device on the double-bundle cable to optimize the distribution of the electromagnetic field and ensure the uniformity of the magnetic field;

[0099] In step S23, by means of the size-adjustable structure design of the skeleton support part 3, the double-bundle cable magnetic decoupling device is stably fixed on the double-bundle cable 9 to ensure the stability of the position of the double-bundle cable magnetic decoupling device on the double-bundle cable 9, avoid abnormal displacement of the double-bundle cable magnetic decoupling device caused by external factors, and thus ensure the stability of the operation of the cable system, so that the entire cable system can still work stably under high vibration or other extreme conditions.

[0100] In step S24: Test the performance of the parallel cable system to verify the effect of reducing the unbalance degree, wherein the performance test includes measuring the signal attenuation, distortion and electromagnetic compatibility at different frequencies.

[0101] In some other embodiments, the assembly method further includes step S25: adding magnetic parts to the double-bundle cable magnetic decoupling device according to the performance test results.

[0102] Specifically, in the application scenario of the present application, signal transmission performance and electromagnetic interference suppression effect are key indicators. In order to verify the effectiveness of the double-bundle cable magnetic decoupling device, detailed transmission tests and electromagnetic compatibility tests are carried out. The network analyzer is used to measure the insertion loss and return loss in the frequency range of 1MHz to 100MHz, and the results show that the design of the double-bundle cable magnetic decoupling device significantly improves the signal transmission quality. Through radiation and conducted emission tests, the suppression effect of the magnetic ring on electromagnetic interference is verified, which meets the international electromagnetic compatibility standards.

[0103] Further, during actual testing, a spectrum analyzer can also be used to test the radiation interference and conducted interference before and after the installation of the double-bundle cable magnetic decoupling device, to ensure that the double-bundle cable magnetic decoupling device can effectively reduce the crosstalk and radiation noise between the cables. In addition, long-term stability tests can also be performed on the double-bundle cable magnetic decoupling device, and the double-bundle cable magnetic decoupling device is placed in extreme environments (such as 85°C high temperature, -40°C low temperature and 85% humid heat environment) to verify its performance reliability in harsh environments.

[0104] In step S25: the operator can also fine-tune the double-split cable magnetic decoupling device according to the results of the performance test, to further optimize the distribution of the electromagnetic field. The fine-tuning includes changing the tilt angle of the magnetic ring or adding small blocks of magnetic material to the magnetic ring to enhance the electromagnetic properties. The operator can choose whether to fine-tune based on the performance test results during actual assembly, and this step is not a mandatory step.

[0105] Specifically, the adjustment of the tilt angle of the double-split cable magnetic decoupling device can be a dynamic adjustment mechanism that adjusts the tilt angle between the magnetic ring and the horizontal plane according to the frequency characteristics of the actual transmission signal. This mechanism can monitor the quality of the transmission signal through an automated system and adjust the depth or distance of the cable in the magnetic ring in real time to achieve the best signal transmission effect.

[0106] The double-split cable magnetic decoupling device and the magnetic ring system described above have the following technical effects for different application requirements:

[0107] Smart cable technology: In the future, intelligent monitoring and adjustment systems can be introduced to monitor the cable status in real time through sensors and automatically adjust the current distribution according to the load conditions.

[0108] Material innovation: Research and development of new high-conductivity and high-heat-resistant materials to improve the overall performance of the cable while reducing the impact of unbalance.

[0109] Integrated solution: Explore integrated design to combine cables, shielding, and adjustment devices together to simplify wiring and improve the reliability and efficiency of the overall system.

[0110] Medical equipment: In medical equipment, there are very high requirements for signal interference and distortion, and reducing unbalance can ensure the normal operation of the equipment and patient safety.

[0111] Aerospace: In the aerospace field, due to harsh environmental conditions and high safety requirements, it is essential to develop low-unbalance cable systems.

[0112] Power distribution: In the power distribution system, reducing unbalance helps improve the reliability of the overall power system and reduce power outages.

[0113] The technical features of the above-described embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combination of the technical features does not exist, it should be considered within the scope of the present disclosure.

[0114] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A dual split cable magnetic decoupling device, characterized by, The double-broken cable magnetic decoupling device comprises a magnet, a magnet skeleton, a plurality of skeleton support parts and a plurality of air passage supports, the magnet has at least one annular through hole for the double-broken cable to pass through, and a gap is formed between the inner wall of the annular through hole and the outer edge of the double-broken cable; the magnet skeleton and the skeleton support parts are arranged in the magnet, the magnet skeleton is arranged in the magnet along the axial direction of the magnet and is coaxially arranged with the magnet, and the outer wall of the magnet skeleton is spaced from the inner wall of the magnet; All the skeleton support parts are connected to the inner wall of the magnet skeleton and are spaced apart along the circumferential direction of the magnet skeleton, the skeleton support parts extend along the radial direction of the magnet skeleton to support the double-broken cable, and the installation gap is formed between the magnet skeleton and the magnet, and the air passage supports are arranged in the installation gap and are uniformly distributed along the circumferential direction of the magnet skeleton; The magnet is made of a high magnetic permeability material, so that the interference magnetic field generated by the double-broken cable is absorbed by the magnet; and the magnet skeleton and the air passage supports are made of an insulating material.

2. The dual split cable magnetic decoupling device of claim 1, wherein, The magnet is circular or is an equilateral polygonal structure, and the annular through hole is located at the axial center of the magnet.

3. The dual split cable magnetic decoupling device of claim 1, wherein, The ratio of the inner diameter of the annular through hole to the diameter of the double-broken cable is 2-5.

4. The dual split cable magnetic decoupling device of any of claims 1-3, wherein, The double-broken cable magnetic decoupling device further comprises at least one cooling fan, and the air outlet of the cooling fan is arranged towards the annular through hole.

5. A cable system characterized in that, The double-broken cable magnetic decoupling device comprises a double-broken cable, and the double-broken cable is arranged in the annular through hole, and the double-broken cable is arranged to form a spacing area between each cable, and the size of the spacing area in the radial direction of the magnet is less than or equal to 10% of the inner diameter of the magnet.

6. A manufacturing method for manufacturing a double-split cable magnetic decoupling device according to any one of claims 1-4, characterized in that, The manufacturing method comprises: selecting and heating a high magnetic permeability material to a preset temperature; molding the heated material into a magnet with an annular through hole; cooling and hardening the molded magnet; detecting the size and performance of the magnet.

7. A method of assembling a magnetic decoupling device according to any one of claims 1-4 to a double-bundle cable, characterized in that, The assembly method comprises: arranging the double-broken cable in the annular through hole of the double-broken cable magnetic decoupling device; adjusting the position of the double-broken cable magnetic decoupling device in the axial direction of the double-broken cable; fixing the double-broken cable magnetic decoupling device to the double-broken cable; testing the performance of the double-broken cable.

8. The method of assembling according to claim 7, wherein, The assembly method further comprises: adding a magnetic part to the double-broken cable magnetic decoupling device according to the performance test result.

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