A magnetising cable assembly

Abstract

The application discloses an excitation cable assembly which comprises an A end, a cable and a support assembly, the support assembly comprises a support sheet and a plurality of plug-in heat-conducting blocks, through grooves are formed in both sides of the support sheet, elastic rings for sleeving the cable are arranged in the through grooves, one end of each plug-in heat-conducting block is movably plugged into the A end, a sealing ring is arranged on the surface of each plug-in heat-conducting block, heat-dissipating pieces fixedly connected with the plug-in heat-conducting blocks are arranged in the support sheet, and fixing pieces are arranged between the heat-dissipating pieces and the support sheet. The support assembly can stably mechanically support and efficiently dissipate heat for the A end interface of the excitation cable assembly, can directly conduct and dissipate the heat generated by the terminal in the A end during work to the external environment through the plug-in heat-conducting blocks, reduces the temperature rise from the source, prevents the terminal from being overheated and ablated, and improves the operation safety and reliability of the excitation system.

Description

Technical Field

[0001] This invention belongs to the field of excitation system technology, and particularly relates to an excitation cable assembly. Background Technology

[0002] Excitation cable assemblies are standardized complete cable units used in excitation systems (generators, electromagnetic flowmeters, speed-regulating motors, etc.) to transmit excitation current / signals and realize electrical connections between equipment. In excitation cable assemblies used in electrical equipment such as generators and exciters, a structure is usually adopted in which one end is used as the main input end and the other end is connected as two output ends to realize the distribution and transmission of excitation current.

[0003] In practical use, existing cable assemblies of this type generally have the following problems: the current is concentrated and the heat generation is large at the input terminal joint. Long-term operation is prone to terminal overheating, burning and even insulation failure, which seriously affects the stability and safety of the excitation system and cannot be adapted to excitation working scenarios with high current, high load and high reliability requirements. Summary of the Invention

[0004] To address the problems in the prior art, the present invention proposes the following technical solution: An excitation cable assembly includes: an A-end, cables, and a support assembly. The A-end is connected to the B-end and the C-end via two independent cables. The support assembly includes a support plate and multiple plug-in heat-conducting blocks. The support plate has through grooves on both sides, and an elastic ring for connecting the cables is provided inside the through grooves. One end of each plug-in heat-conducting block is movably inserted into the A-end, and a sealing ring is provided on the surface of the plug-in heat-conducting block. A heat sink is provided inside the support plate and is fixedly connected to the multiple plug-in heat-conducting blocks. A fixing member is provided between the heat sink and the support plate. The fixing component includes a fixed ring and a rotating ring. The fixed ring is fixedly connected to the support plate. One end of the rotating ring is movably inserted into the heat sink. Both the rotating ring and the fixed ring have trapezoidal blocks at their ends. The inclined surfaces of the two trapezoidal blocks are in contact. Rotating the rotating ring causes the corresponding trapezoidal block to move on the inclined surface of the other trapezoidal block until the ends of the two blocks contact each other. The heat-conducting block and the heat sink move accordingly. The sealing ring deforms to seal the insertion point at end A, while the support plate is tightly fitted to end A. The heat generated inside end A is transferred to the heat sink for heat dissipation through the heat-conducting block.

[0005] As a preferred embodiment of the above technical solution, the sealing ring is a conical elastic sealing ring, with its large-diameter end fixedly connected to the plug-in heat-conducting block and its small-diameter end facing the inside of end A. When the plug-in heat-conducting block moves, the sealing ring is squeezed and generates radial expansion, thereby achieving dynamic sealing at the plug-in point of end A.

[0006] As a preferred embodiment of the above technical solution, the through grooves on both sides of the support plate are symmetrically arranged, and the elastic ring is made of high-temperature resistant rubber material, with its inner diameter interfering with the outer diameter of the cable to achieve radial fixation and stress buffering of the cable.

[0007] As a preferred embodiment of the above technical solution, the trapezoidal block between the fixed ring and the rotating ring is a wedge-shaped structure with an inclination angle of 30° to 60°, and the rotation angle of the rotating ring is linearly related to the axial movement distance of the inserted heat-conducting block.

[0008] As a preferred embodiment of the above technical solution, the heat sink is a ring-shaped aluminum alloy or copper alloy component with multiple axial heat dissipation holes inside. The heat dissipation holes are filled with thermally conductive filler to enhance the air convection heat dissipation capacity.

[0009] As a preferred embodiment of the above technical solution, the outer surface of the support plate is provided with detachable heat dissipation fins, which are connected to the heat dissipation component through a snap-fit ​​structure and can be added, removed or replaced according to heat dissipation requirements.

[0010] As a preferred embodiment of the above technical solution, the surface of the rotating ring is provided with an anti-slip layer, and the surface of the anti-slip layer of the rotating ring is provided with an uneven surface.

[0011] As a preferred embodiment of the above technical solution, the support component further includes a temperature sensor, which is embedded inside the heat sink to monitor the temperature of the heat sink in real time and can be connected to an external control system to achieve overheat warning.

[0012] The beneficial effects of this invention are as follows: 1. The support components provide stable mechanical support and efficient heat dissipation for the A-end interface of the excitation cable assembly. They effectively absorb the mechanical stress generated by the cable under vibration, bending, and tension conditions, preventing fatigue cracking and breakage at the cable root, thus improving the overall structural strength and service life of the assembly. Furthermore, by inserting heat-conducting blocks, they quickly dissipate the heat generated by the internal terminals at the A-end to the external environment, reducing temperature rise at the source, preventing terminal overheating and erosion, and enhancing the safety and reliability of the excitation system. Simultaneously, the support components achieve locking and sealing, simplifying the assembly process, improving interface protection levels, and featuring a compact and convenient overall structure suitable for high-current, high-load excitation operating scenarios. 2. The fastener, consisting of a fixed ring and a rotating ring, uses the inclined surfaces of trapezoidal blocks at their ends to engage. By simply rotating the rotating ring, the axial movement and locking of the heat-conducting block and the heat sink can be achieved. This ensures that the support plate is tightly fitted to end A, and the sealing ring deforms and seals synchronously. Locking, sealing, and heat-conducting bonding are completed simultaneously in one go, simplifying assembly operations, improving installation efficiency and structural stability, ensuring stable heat conduction and heat dissipation, and improving the overall operational reliability and service life of the component. Attached Figure Description

[0013] Figure 1 The diagram shown is a schematic representation of the overall structure of the embodiment; Figure 2 The image shown is a front view of the supporting component in the embodiment; Figure 3 The diagram shown is a front sectional view of the support component in the embodiment; Figure 4 The diagram shown illustrates the movement state of the fixing element in the embodiment. Figure 5 The diagram shows the fixed state of the fastener in the embodiment.

[0014] In the diagram: 10, A end; 20, cable; 30, B end; 40, C end; 50, support component; 51, support plate; 52, plug-in heat conduction block; 53, elastic ring; 54, sealing ring; 55, heat sink; 60, fixing component; 61, fixing ring; 62, rotating ring; 63, trapezoidal block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings.

[0016] Example Figures 1-5 A magnetizing cable assembly includes: an A-end 10, a cable 20, and a support assembly 50. The A-end 10 is connected to the B-end 30 and the C-end 40 via two independent cables 20. The support assembly 50 includes a support plate 51 and a plurality of plug-in heat-conducting blocks 52. The support plate 51 has through grooves on both sides, and an elastic ring 53 for connecting the cable 20 is provided inside the through groove. One end of the plug-in heat-conducting block 52 is movably inserted into the A-end 10, and a sealing ring 54 is provided on the surface of the plug-in heat-conducting block 52. A heat sink 55 is provided inside the support plate 51 and is fixedly connected to the plurality of plug-in heat-conducting blocks 52. A fixing member 60 is provided between the heat sink 55 and the support plate 51. The fixing member 60 includes a fixing ring 61 and a rotating ring 62. The fixing ring 61 is fixedly connected to the support plate 51. One end of the rotating ring 62 is movably inserted into the heat sink 55. Both the rotating ring 62 and the fixing ring 61 have trapezoidal blocks 63 at their ends. The inclined surfaces of the two trapezoidal blocks 63 are in contact. Rotating the rotating ring 62 causes the corresponding trapezoidal block 63 to move on the inclined surface of the other trapezoidal block 63 until the ends of the two blocks contact each other. The heat-conducting block 52 and the heat sink 55 move accordingly. The sealing ring 54 deforms to seal the insertion point of end A 10, while the support plate 51 is tightly attached to end A 10. The heat generated inside end A 10 is transferred to the heat sink 55 for heat dissipation through the heat-conducting block 52.

[0017] The support component 50 provides stable mechanical support and efficient heat dissipation for the A-end 10 interface of the excitation cable assembly. It effectively absorbs the mechanical stress generated by the cable under vibration, bending, and tension conditions, preventing fatigue cracking and breakage at the cable root, thus improving the overall structural strength and service life of the assembly. It also directly and quickly conducts the heat generated by the internal terminals of the A-end 10 during operation to the external environment through the plug-in heat-conducting block 52, reducing the temperature rise from the source, preventing overheating and burning of the terminals, and improving the safety and reliability of the excitation system. At the same time, the support component 50 achieves locking and fixing while simultaneously sealing, simplifying the assembly process, improving the interface protection level, and making the overall structure compact, easy to operate, and suitable for high-current and high-load excitation working scenarios.

[0018] Figures 2-5 In this embodiment, the heat sink 55 is a ring-shaped aluminum alloy or copper alloy component with multiple axial heat dissipation holes inside. The heat dissipation holes are filled with thermally conductive filler to enhance the air convection heat dissipation capacity.

[0019] The outer surface of the support plate 51 is provided with detachable heat dissipation fins, which are connected to the heat dissipation component 55 through a snap-fit ​​structure and can be added, removed or replaced according to heat dissipation requirements.

[0020] Figures 2-5 In this process, the sealing ring 54 is a conical elastic sealing ring. Its large diameter end is fixedly connected to the plug-in heat-conducting block 52, and its small diameter end faces the inside of end A 10. When the plug-in heat-conducting block 52 moves, the sealing ring 54 is squeezed and generates radial expansion, thereby achieving dynamic sealing at the plug-in point of end A 10.

[0021] The through grooves on both sides of the support plate 51 are symmetrically arranged. The elastic ring 53 is made of high-temperature resistant rubber, and its inner diameter is interference-fitted with the outer diameter of the cable 20 to achieve radial fixation and stress buffering of the cable 20.

[0022] Figures 2-5 In this structure, the trapezoidal block 63 between the fixed ring 61 and the rotating ring 62 has a wedge-shaped structure with an inclination angle of 30° to 60°. The rotation angle of the rotating ring 62 is linearly related to the axial movement distance of the inserted heat-conducting block 52.

[0023] The surface of the rotating ring 62 is provided with an anti-slip layer, and the surface of the anti-slip layer of the rotating ring 62 is provided with an uneven surface.

[0024] The fixing member 60, consisting of a fixing ring 61 and a rotating ring 62, is engaged by the inclined surfaces of the trapezoidal blocks 63 at their ends. By simply rotating the rotating ring 62, the axial movement and locking of the heat-conducting block 52 and the heat sink 55 can be achieved, so that the support plate 51 and the A end 10 are tightly fitted together and the sealing ring 54 deforms and seals synchronously. This achieves locking, sealing, and heat-conducting bonding in one go, simplifying the assembly operation, improving installation efficiency and structural stability, ensuring stable heat conduction and heat dissipation, and improving the overall operational reliability and service life of the component.

[0025] The support component 50 also includes a temperature sensor embedded inside the heat sink 55, which is used to monitor the temperature of the heat sink 55 in real time and can be connected to an external control system to realize overheat warning.

[0026] Working principle: In this invention, two independent cables 20 pass through the through slots on both sides of the support plate 51 and are held and fixed by the elastic ring 53 in the through slot, realizing radial limiting and stress buffering of the cables 20. During assembly, the rotating ring 62 is pulled to move the heat sink 55 away from end A 10. The sealing ring 54 is partially deformed and fits against the inner surface of end A 10. Then, the rotating ring 62 is rotated so that the rotating ring 62 and the trapezoidal block 63 on the fixed ring 61 move relative to each other along the inclined plane. On the one hand, the sealing ring 54 on the plug-in heat-conducting block 52 is squeezed and deformed, and radial expansion is achieved to seal the plug-in point of end A 10. On the other hand, the support plate 51 is tightly fitted with end A 10, and the overall structure is reliably locked. The heat generated inside end A 10 is efficiently transferred to the heat sink 55 through the plug-in heat-conducting block 52, and then the heat sink 55 diffuses heat outward, thereby achieving continuous cooling of the heat-generating parts and ensuring stable operation of the excitation cable assembly.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An excitation cable assembly, characterized in that, include: The A-end (10), cable (20) and support assembly (50) are connected to the B-end (30) and C-end (40) by two independent cables (20). The support assembly (50) includes a support plate (51) and multiple plug-in heat conduction blocks (52). The support plate (51) has through grooves on both sides. The through grooves are provided with elastic rings (53) for connecting the cable (20). One end of the plug-in heat conduction block (52) is movably plugged into the A-end (10). The surface of the plug-in heat conduction block (52) is provided with a sealing ring (54). The support plate (51) is provided with a heat sink (55) fixedly connected to the multiple plug-in heat conduction blocks (52). A fixing member (60) is provided between the heat sink (55) and the support plate (51). The fixing component (60) includes a fixing ring (61) and a rotating ring (62). The fixing ring (61) is fixedly connected to the support plate (51). One end of the rotating ring (62) is movably inserted into the heat sink (55). Both the rotating ring (62) and the fixing ring (61) are provided with trapezoidal blocks (63). The inclined surfaces of the two trapezoidal blocks (63) are in contact. Rotating the rotating ring (62) causes the corresponding trapezoidal block (63) to move on the inclined surface of the other trapezoidal block (63) until the ends of the two are in contact. The heat-conducting block (52) and the heat sink (55) move accordingly. The sealing ring (54) deforms to seal the insertion point of end A (10). The support plate (51) is tightly attached to end A (10). The heat generated inside end A (10) is transferred to the heat sink (55) for heat dissipation through the heat-conducting block (52).

2. The excitation cable assembly according to claim 1, characterized in that, The sealing ring (54) is a conical elastic sealing ring. Its large diameter end is fixedly connected to the plug-in heat-conducting block (52), and its small diameter end faces the inside of end A (10). When the plug-in heat-conducting block (52) moves, the sealing ring (54) is squeezed and generates radial expansion, thereby achieving dynamic sealing at the plug-in point of end A (10).

3. The excitation cable assembly according to claim 1, characterized in that, The through grooves on both sides of the support plate (51) are symmetrically arranged. The elastic ring (53) is made of high temperature resistant rubber. Its inner diameter is interference-fitted with the outer diameter of the cable (20) to achieve radial fixation and stress buffering of the cable (20).

4. An excitation cable assembly according to claim 1, characterized in that, The trapezoidal block (63) between the fixed ring (61) and the rotating ring (62) is a wedge-shaped structure with an inclination angle of 30° to 60°. The rotation angle of the rotating ring (62) is linearly related to the axial movement distance of the plug-in heat-conducting block (52).

5. An excitation cable assembly according to claim 1, characterized in that, The heat sink (55) is an annular aluminum alloy or copper alloy component with multiple axial heat dissipation holes inside. The heat dissipation holes are filled with thermally conductive filler to enhance the air convection heat dissipation capacity.

6. An excitation cable assembly according to claim 1, characterized in that, The outer surface of the support plate (51) is provided with detachable heat dissipation fins. The heat dissipation fins are connected to the heat dissipation component (55) through a snap-fit ​​structure and can be added, removed or replaced according to heat dissipation requirements.

7. An excitation cable assembly according to claim 1, characterized in that, The surface of the rotating ring (62) is provided with an anti-slip layer, and the surface of the anti-slip layer of the rotating ring (62) is provided with an uneven surface.

8. An excitation cable assembly according to claim 1, characterized in that, The support component (50) also includes a temperature sensor embedded inside the heat sink (55) for real-time monitoring of the temperature of the heat sink (55) and can be connected to an external control system to realize overheat warning.

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