A core clamp magnetic shield assembly having a flow-optimized oil channel

Abstract

The utility model relates to power transformer magnetic shielding technical field, specifically disclose a kind of core clamp piece magnetic shielding assembly with flow guide optimization oil channel, the left side of core clamp piece plate is provided with magnetic shielding plate, the left side of core clamp piece plate is provided with first semicircle through slot, the right side of magnetic shielding plate is provided with second semicircle through slot, and second semicircle through slot and first semicircle through slot contact after forming oil channel, the inner chamber of first semicircle through slot is provided with first spoiler, the inner chamber of second semicircle through slot is provided with second spoiler, and second spoiler and first flow guide plate are staggered arrangement. Form oil channel by the semicircle through slot on core clamp piece plate and magnetic shielding plate, and combine the spoiler of staggered arrangement, effectively enhance cooling oil turbulent flow, improve heat dissipation effect, solve the problem of local overheating caused by the single structure of traditional magnetic shielding assembly due to insufficient heat dissipation, with the advantage that the structure of optimization oil channel is enhanced cooling oil turbulent flow, and the advantage that heat dissipation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of magnetic shielding technology for power transformers, specifically a magnetic shielding assembly for a core clamp with optimized oil flow channels. Background Technology

[0002] During operation, the strong leakage magnetic field generated by the core and windings of large power transformers concentrates on structural components such as clamps, resulting in significant eddy current losses. This eddy current effect not only causes energy loss but also leads to abnormally high local temperatures, seriously affecting the transformer's operational safety and service life. To suppress this phenomenon, the traditional solution is to install a flat magnetic shielding plate inside the core clamps to reduce eddy current losses by attracting and dispersing leakage magnetic flux. However, this conventional magnetic shielding structure has significant heat dissipation defects: the oil channel structure formed by the magnetic shielding plate and the clamp body is too straight and simple, making it difficult for the cooling oil to form effective turbulence, resulting in the inability to conduct the heat generated by the magnetic shielding plate itself in a timely manner. This heat accumulation not only weakens the stability of the magnetic shielding effect but also accelerates the thermal aging process of the insulation material. Especially under high load conditions, the existing flat magnetic shielding components lack synergistic optimization with the transformer cooling system, resulting in uneven distribution of the cooling oil flow field and difficulty in timely dissipation of heat from local overheated areas, severely restricting the transformer's overload capacity and operational reliability. In addition, the traditional structure lacks an effective flow guiding design in the oil passages, resulting in high flow resistance of the cooling oil and low heat exchange efficiency, which further exacerbates the thermal management problem. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a magnetic shielding assembly with an iron core clamp featuring optimized oil channels, which has the advantages of optimizing the oil channel structure to enhance cooling oil turbulence and improve heat dissipation efficiency.

[0004] This application provides a magnetic shielding assembly for a core clamp with optimized oil flow channels, the technical solution of which is as follows: A magnetic shielding plate is provided on the left side of the iron core clamping plate. A first semi-circular through groove is provided on the left side of the iron core clamping plate, and a second semi-circular through groove is provided on the right side of the magnetic shielding plate. The second semi-circular through groove and the first semi-circular through groove form an oil passage after contact. A first baffle is provided in the inner cavity of the first semi-circular through groove, and a second baffle is provided in the inner cavity of the second semi-circular through groove. The second baffle and the first guide plate are staggered.

[0005] Furthermore, this application also proposes that both the first and second spoilers are composed of a base layer, an epoxy zinc-rich primer, and an organosilicon heat-resistant topcoat, with the epoxy zinc-rich primer disposed on the surface of the base layer and the organosilicon heat-resistant topcoat disposed on the surface of the epoxy zinc-rich primer.

[0006] Furthermore, this application also proposes that the thickness of the epoxy zinc-rich primer is 25-50 μm and the thickness of the silicone heat-resistant topcoat is 20-60 μm.

[0007] Furthermore, this application also proposes that at least thirteen first semicircular slots and second semicircular slots are equally spaced on the corresponding sides of the iron core clamping plate and the magnetic shielding plate, and the first semicircular slots and second semicircular slots on the iron core clamping plate and the magnetic shielding plate are symmetrically arranged.

[0008] Furthermore, this application also proposes that at least six first spoilers and second spoilers are respectively provided in the first semi-circular through groove and the second semi-circular through groove, and the first spoilers and the second spoilers are arranged alternately.

[0009] Furthermore, this application also proposes that connecting plates are fixedly connected to the top and bottom of the right side of the iron core clamping plate, and connecting holes are provided on both sides of the inner cavity of the connecting plates.

[0010] Furthermore, this application also proposes that mounting holes are provided on both sides of the inner cavity of the iron core clamping plate, and through holes adapted to the mounting holes are provided on both sides of the inner cavity of the magnetic shielding plate, and the inner diameters of the through holes and the mounting holes are the same.

[0011] As can be seen from the above, the magnetic shielding assembly with optimized oil channels for iron core clamps and its manufacturing method provided in this application forms oil channels through semi-circular through grooves on the iron core clamp plate and the magnetic shielding plate, and combined with staggered baffles, effectively enhances the turbulence of cooling oil and improves the heat dissipation effect. It solves the problem of insufficient heat dissipation and local overheating caused by the simple oil channel structure of traditional magnetic shielding assemblies, and has the advantages of optimizing the oil channel structure to enhance the turbulence of cooling oil and improve the heat dissipation efficiency. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the iron core clamping plate structure of this utility model; Figure 3 This is a schematic diagram of the magnetic shielding plate structure of this utility model; Figure 4 This is a schematic diagram of the first spoiler structure of this utility model.

[0013] In the diagram: 1. Iron core clamping plate; 2. Connecting plate; 3. Magnetic shielding plate; 4. Connecting hole; 5. First semi-circular through groove; 6. Mounting hole; 7. First baffle plate; 701. Base layer; 702. Epoxy zinc-rich primer; 703. Organosilicon heat-resistant topcoat; 8. Through hole; 9. Second semi-circular through groove; 10. Second baffle plate. Detailed Implementation

[0014] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0015] Please see Figures 1-4 In existing technologies, the magnetic shielding structure at the core clamp of large power transformers generally adopts a flat plate design, resulting in straight and narrow oil channels after installation. When the insulating oil flows through such channels, the flow velocity distribution is uneven, and laminar flow is significant. This makes it difficult to effectively remove the heat generated by the magnetic shielding plate 3, which can easily lead to local overheating during long-term operation, affecting the stability of the magnetic shielding performance and accelerating the aging of the insulation material.

[0016] To address these issues, researchers observed the negative impact of traditional oil passage structures on fluid dynamics and realized that optimizing the passage morphology is key to improving heat dissipation efficiency. By analyzing the differences in heat transfer efficiency between laminar and turbulent flow, they proposed incorporating specific structures within the oil passages to alter the fluid motion state, thereby enhancing convective heat transfer. Further research revealed that placing staggered flow-guiding elements within the oil passages can effectively disrupt the laminar boundary layer and promote fluid mixing, but it is crucial to avoid excessively increasing flow resistance.

[0017] Therefore, this application proposes an assembly including a core clamping plate 1, with a magnetic shielding plate 3 disposed on the left side of the core clamping plate 1. Semi-circular through grooves are respectively formed on the contact surfaces of the two, and they are combined to form a complete oil passage. Two sets of staggered baffles are disposed in the inner cavity of the oil passage, one set of which is fixed to the inner wall of the semi-circular through groove of the core clamping plate 1, and the other set of which is fixed to the inner wall of the semi-circular through groove of the magnetic shielding plate 3.

[0018] Among them, the iron core clamping plate 1 refers to the main support component that bears the magnetic shielding structure. Specifically, it can be formed by welding laminated silicon steel sheets, and its surface processing accuracy must meet the assembly requirements with the magnetic shielding plate 3. The magnetic shielding plate 3 refers to the electromagnetic shielding element made of high magnetic permeability material. Specifically, it can be made of amorphous alloy strips stacked and fixed, used to guide and disperse leakage magnetic flux. The semi-circular through groove refers to the arc-shaped channel extending along the length of the plate. Specifically, it can be formed by CNC milling. Two semi-circular through grooves are joined together to form a continuous oil channel with a circular cross-section. The baffle plate refers to the flow guiding structure protruding from the inner wall of the oil channel. Specifically, it can be made of metal sheets of the same material as the base material, stamped and welded, and the staggered arrangement allows the fluid to repeatedly change its direction of movement during its advancement.

[0019] Specifically, when the insulating oil flows through the circular oil channel formed by the intersection of two semi-circular slots, the staggered baffles continuously disrupt the laminar flow of the fluid. The oil generates vortex motion under the action of the baffles, enhancing momentum exchange within the fluid and rapidly displacing the high-temperature oil close to the surface of the magnetic shielding plate 3. Simultaneously, the circular oil channel cross-section has a lower hydraulic radius than the traditional rectangular cross-section, maintaining a higher flow velocity at the same flow rate, further enhancing the convective heat transfer effect.

[0020] Compared to existing technologies, traditional flat-plate magnetic shielding structures rely solely on natural convection for heat dissipation in their rectangular oil channels. This solution, however, actively intervenes in fluid motion through the synergistic effect of oil channels with a specific geometry and a built-in turbulence-inducing structure. In existing technologies, smooth oil channel walls cannot effectively enhance turbulence intensity. In this solution, the staggered arrangement of turbulence-inducing plates generates velocity gradients in both the axial and radial directions, causing continuous secondary flow of the oil during its flow process, significantly improving heat transfer efficiency.

[0021] Through the above technical solution, this application can improve the heat exchange process between the surface of the magnetic shielding component and the cooling oil, preventing abnormal temperature rise in local areas due to poor heat dissipation. The increased turbulence in the oil channel allows the heat generated by the magnetic shielding plate 3 to be quickly dissipated, maintaining the stability of its magnetic permeability, while slowing down the aging rate of the insulating material in high-temperature environments, ensuring the long-term reliability of the transformer.

[0022] This application further proposes that both the first spoiler 7 and the second spoiler 10 are composed of a base layer 701, an epoxy zinc-rich primer 702, and an organosilicon heat-resistant topcoat 703. The epoxy zinc-rich primer 702 is disposed on the surface of the base layer 701, and the organosilicon heat-resistant topcoat 703 is disposed on the surface of the epoxy zinc-rich primer 702.

[0023] Among them, the base layer 701 refers to the metal support structure that constitutes the main body of the spoiler. Specifically, it can be formed by stamping cold-rolled steel plate or aluminum alloy plate to provide mechanical strength and form the guide surface of the inner wall of the oil passage.

[0024] Among them, epoxy zinc-rich primer 702 refers to the anti-corrosion coating that adheres to the surface of the base layer 701. Specifically, it can be formed by spraying epoxy resin coating with a zinc powder content of not less than 80% through a spraying process. It is used to isolate the cooling oil from direct contact with the metal substrate and inhibit electrochemical corrosion.

[0025] Among them, the silicone heat-resistant topcoat 703 refers to the high-temperature resistant insulating coating that covers the surface of the epoxy zinc-rich primer 702. Specifically, it can be formed by a polysiloxane modified resin coating through a two-stage spraying process, which is used to maintain the integrity of the coating and enhance the surface insulation performance in a high-temperature oil flow environment.

[0026] Specifically, the surface of the baffle installed inside the oil passage is sequentially coated with epoxy zinc-rich primer 702 and silicone heat-resistant topcoat 703, forming a composite protective structure. The epoxy zinc-rich primer 702 delays corrosion of the metal substrate through the cathodic protection of zinc powder, while the silicone heat-resistant topcoat 703 resists oil flow erosion and operating temperatures above 150°C through its cross-linked siloxane chain structure. The superposition of the two coatings ensures that the baffle maintains surface smoothness in a long-term oil immersion environment, preventing oil passage blockage or increased local turbulence due to coating peeling.

[0027] Compared to existing technologies, traditional magnetic shielding components often use a single metal material or are only coated with ordinary anti-rust paint, which can easily lead to problems such as coating powdering and metal substrate corrosion under long-term scouring by high-temperature oil flow. This solution, through the synergistic effect of epoxy zinc-rich primer 702 and silicone heat-resistant topcoat 703, significantly improves the durability of the surface coating while maintaining the flow guiding function.

[0028] Through the above technical solution, this application effectively solves the problem of coating failure caused by high-temperature oil flow in the oil channel in the turbulence structure of the magnetic shielding plate 3. The composite coating structure reduces the corrosion rate of the metal substrate, maintains the smoothness of the inner wall of the oil channel, and ensures that the cooling oil flows stably through the magnetic shielding area to remove heat.

[0029] This application further proposes that the thickness of the epoxy zinc-rich primer 702 is 25-50 μm and the thickness of the silicone heat-resistant topcoat 703 is 20-60 μm.

[0030] The thickness of the epoxy zinc-rich primer 702 refers to the thickness of the anti-corrosion coating covering the surface of the base layer 701. This thickness can be achieved by multiple coats applied using a spraying process. This thickness range ensures adhesion while forming a dense protective layer, preventing insufficient anti-corrosion performance due to excessive thinness or cracking due to excessive thickness. The thickness of the silicone heat-resistant topcoat 703 refers to the thickness of the high-temperature resistant coating covering the surface of the epoxy zinc-rich primer 702. This thickness can be achieved using an impregnation or roller coating process. This thickness range maintains heat resistance while avoiding affecting the flow efficiency of cooling oil within the oil passages due to excessive thickness.

[0031] Specifically, the epoxy zinc-rich primer 702 and the silicone heat-resistant topcoat 703 are combined in a layered coating process to form a composite protective structure. The epoxy zinc-rich primer 702, acting as the bottom layer, effectively isolates the substrate from the external environment within a 25-50μm range, preventing oxidation and corrosion. The silicone heat-resistant topcoat 703, acting as the surface layer, can withstand the thermal shock of high-temperature oil flow within the oil channels within a 20-60μm range, preventing coating peeling. The thickness ratio of the two coatings has been optimized to ensure overall protective performance while avoiding obstruction of cooling oil flow due to excessive total thickness.

[0032] Compared to existing technologies, traditional magnetic shielding components typically do not employ layered design for coating thickness. A single coating is insufficient to simultaneously meet both corrosion resistance and heat resistance requirements, and excessively thick coatings are prone to thermal expansion and deformation at high temperatures. This application addresses this by limiting the thickness range of two coating layers, enabling them to work synergistically to enhance coating durability while maintaining oil channel heat dissipation efficiency.

[0033] Through the above technical solution, this application can balance the anti-corrosion performance and heat dissipation requirements, reduce the risk of corrosion of the magnetic shielding plate 3 due to coating failure, and extend the service life of the component in a high-temperature oil flow environment.

[0034] This application further proposes that at least thirteen first semicircular slots 5 and second semicircular slots 9 are equally spaced on one side of the iron core clamping plate 1 and the magnetic shielding plate 3, and the first semicircular slots 5 and second semicircular slots 9 on the iron core clamping plate 1 and the magnetic shielding plate 3 are symmetrically arranged.

[0035] The equidistant arrangement refers to the uniform distribution of the first semicircular through-slots 5 and 9 on the surfaces of the iron core clamping plate 1 and the magnetic shielding plate 3. This can be achieved through CNC machining or mold forming processes to ensure that the spacing between adjacent slots is equal. The symmetrical arrangement means that the first semicircular through-slots 5 of the iron core clamping plate 1 and the second semicircular through-slots 9 of the magnetic shielding plate 3 form corresponding oil passage structures after assembly. This can be achieved through positioning fixtures or pre-processed markings to align the slots during installation of the two components.

[0036] Specifically, when the iron core clamping plate 1 and the magnetic shielding plate 3 are assembled to form oil channels, the symmetrical distribution of the first semi-circular through grooves 5 and the second semi-circular through grooves 9 ensures that the oil channels form a uniform cooling path on the contact surface. The oil flow is evenly distributed in the symmetrical oil channels, avoiding excessively high or low local flow velocities, thereby improving heat dissipation efficiency. For example, thirteen first semi-circular through grooves 5 can be provided on one side of the iron core clamping plate 1, and thirteen corresponding second semi-circular through grooves 9 can be provided on the magnetic shielding plate 3. After assembly, the two form thirteen complete circular oil channels.

[0037] Compared with existing technologies, traditional magnetic shielding components have a single distribution of oil channels and lack symmetry, resulting in limited cooling oil flow paths and uneven heat dissipation. This solution increases the number of oil channels and makes their layout more regular by opening slots at equal intervals and symmetrically, expanding the oil flow coverage area and allowing heat to be more evenly carried away from the surface of the magnetic shielding plate 3.

[0038] Through the above technical solution, this application solves the problem of insufficient heat dissipation capacity caused by uneven oil channel distribution in traditional magnetic shielding components. The symmetrically arranged oil channel structure optimizes the path of cooling oil flow, avoids material aging caused by local heat accumulation in the magnetic shielding plate 3, and improves the coordinated heat dissipation efficiency with the transformer cooling system.

[0039] This application further proposes that at least six first spoilers 7 and two spoilers 10 are respectively provided in the first semi-circular through groove 5 and the second semi-circular through groove 9, and the first spoilers 7 and the second spoilers 10 are staggered.

[0040] The first baffle 7 refers to a plate-like structure fixed to the inner wall of the first semi-circular through groove 5. It can be implemented by welding or bolting and is used to change the flow direction of the cooling oil in the oil passage.

[0041] The second spoiler 10 refers to a plate-like structure fixed to the inner wall of the second semi-circular through groove 9. Specifically, it can be implemented using the same connection method as the first spoiler 7, and its shape and size are complementary to the first spoiler 7.

[0042] The staggered arrangement refers to the non-overlapping staggered arrangement of the first spoiler 7 and the second spoiler 10 on the axial projection of the oil passage. This can be achieved by adjusting the installation position of the two, so that the cooling oil generates multi-directional disturbance when flowing through the oil passage.

[0043] Specifically, when the iron core clamping plate 1 and the magnetic shielding plate 3 combine to form an oil passage through the first semi-circular through groove 5 and the second semi-circular through groove 9, the first baffle plate 7 and the second baffle plate 10 form an alternating barrier structure inside the oil passage. When the cooling oil flows through the oil passage, it is forced to undergo multiple directional changes due to the obstruction of the staggered baffle plates, resulting in a turbulent effect. The contact area between the turbulent oil flow and the surface of the magnetic shielding plate 3 increases, and the flow velocity increases locally, thereby accelerating the heat transfer process from the magnetic shielding plate 3 to the cooling oil.

[0044] Compared to existing technologies, the oil channels in traditional magnetic shielding components have a straight and smooth structure, resulting in low heat exchange efficiency when the cooling oil flows through in a laminar state. This solution, by installing staggered baffles within the oil channels, forcibly alters the oil flow state, transforming laminar flow into turbulent flow, thus significantly improving heat dissipation capacity.

[0045] Through the above technical solution, this application effectively solves the problem of heat accumulation caused by insufficient heat dissipation in the oil channels of the magnetic shielding plate 3. The staggered baffle structure enhances the heat exchange intensity between the cooling oil and the surface of the magnetic shielding plate 3, avoiding the negative impact of excessively high local temperatures on the magnetic shielding performance and the lifespan of the insulation material.

[0046] This application further proposes that the top and bottom of the right side of the iron core clamping plate 1 are fixedly connected to the connecting plate 2, and the connecting plate 2 has connecting holes 4 on both sides of the inner cavity.

[0047] Among them, the connecting plate 2 refers to the plate-like structure set on the edge of the clamping plate, which can be implemented by welding or bolt fixing, and is used to provide an installation interface with other components.

[0048] Among them, the connecting hole 4 refers to the through hole 8 that passes through both sides of the connecting plate 2. Specifically, it can be achieved by drilling or stamping processes, and is used to pass through bolts or pins to form a detachable connection structure.

[0049] Specifically, when the iron core clamping plate 1 is assembled with the external support frame, the connecting plate 2 is clamped between the frame and the clamping plate, and fasteners pass through the connecting holes 4 to fix the three together. This connection method allows the clamping plate to distribute stress through the double connection points at the top and bottom when subjected to electromagnetic forces or mechanical vibrations, avoiding local deformation. The connecting holes 4 are symmetrically distributed on both sides of the connecting plate 2, ensuring a uniform distribution of fastening force and preventing the connecting plate 2 from warping during long-term operation.

[0050] Compared with existing technologies, traditional clamping plates typically have a single row of mounting holes 6 directly drilled on the plate body, resulting in concentrated connection points and uneven stress. This solution adds an independent connecting plate 2 with double-sided connecting holes 4, forming a symmetrical distributed connection structure, which increases the contact area between the clamping plate and the external frame, effectively suppressing displacement caused by thermal expansion or mechanical vibration.

[0051] Through the above technical solution, this application achieves a stable connection between the clamping plate and the external structure, avoids oil channel deformation caused by loose connection points, and ensures that the semi-circular through groove between the magnetic shielding plate 3 and the clamping plate is always in a precise alignment state, thereby maintaining a stable flow path of cooling oil in the oil channel.

[0052] This application further proposes that mounting holes 6 are provided on both sides of the inner cavity of the iron core clamping plate 1, and through holes 8 that are adapted to the mounting holes 6 are provided on both sides of the inner cavity of the magnetic shielding plate 3, and the inner diameters of the through holes 8 and the mounting holes 6 are the same.

[0053] The mounting holes 6 refer to the hole structures provided on both sides of the iron core clamping plate 1, which can be achieved by mechanical drilling or stamping processes, and are used to fix the relative position of the magnetic shielding plate 3 and the iron core clamping plate 1. The through holes 8 refer to the through holes corresponding to the mounting holes 6, which can be achieved by the same processing method as the mounting holes 6. Their inner diameter is the same as that of the mounting holes 6, ensuring that the two can be precisely aligned during assembly, thereby avoiding connection gaps or stress concentrations caused by misalignment.

[0054] Specifically, the core clamping plate 1 and the magnetic shielding plate 3 are positioned and secured through the mating of the mounting hole 6 and the through hole 8. During assembly, bolts or other connecting parts pass through the through hole 8 and are then inserted into the mounting hole 6. Since the inner diameters of both are the same, a uniform contact surface is formed between the connecting parts and the hole wall, thus stably fixing the magnetic shielding plate 3 to the inside of the core clamping plate 1. This structural design reduces oil channel deformation or local narrowing caused by installation deviations, thereby ensuring uniform flow of insulating oil within the oil channels and effectively carrying away the heat generated by the magnetic shielding plate 3.

[0055] Compared to existing technologies, traditional magnetic shielding components typically employ asymmetrical mounting holes 6 or through holes 8, which are prone to assembly misalignment due to processing errors, leading to localized gaps or oil channel deformation and hindering oil flow and heat dissipation. In contrast, this application significantly improves assembly accuracy and structural stability by using symmetrically arranged mounting holes 6 and through holes 8, and strictly controlling the consistency of their inner diameters. This ensures that the oil channel shape remains uniform and heat dissipation efficiency is optimized.

[0056] Through the above technical solution, this application solves the problem of oil channel deformation caused by installation deviation in traditional magnetic shielding components, reduces the risk of heat accumulation caused by local oil flow obstruction, thereby improving the heat transfer efficiency between the magnetic shielding plate 3 and the iron core clamping plate 1 and extending the service life of the insulation material.

[0057] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A magnetic shielding assembly for a core clamp with optimized oil flow channels, comprising a core clamp plate (1), characterized in that: A magnetic shielding plate (3) is provided on the left side of the iron core clamping plate (1). A first semi-circular through groove (5) is provided on the left side of the iron core clamping plate (1). A second semi-circular through groove (9) is provided on the right side of the magnetic shielding plate (3). An oil passage is formed after the second semi-circular through groove (9) and the first semi-circular through groove (5) come into contact. A first baffle plate (7) is provided in the inner cavity of the first semi-circular through groove (5). A second baffle plate (10) is provided in the inner cavity of the second semi-circular through groove (9). The second baffle plate (10) and the first guide plate are staggered.

2. The magnetic shielding assembly for a core clamp with optimized oil flow channels according to claim 1, characterized in that: The first spoiler (7) and the second spoiler (10) are both composed of a base layer (701), an epoxy zinc-rich primer (702) and an organosilicon heat-resistant topcoat (703). The epoxy zinc-rich primer (702) is disposed on the surface of the base layer (701) and the organosilicon heat-resistant topcoat (703) is disposed on the surface of the epoxy zinc-rich primer (702).

3. A magnetic shielding assembly for a core clamp with optimized oil channels according to claim 2, characterized in that: The thickness of the epoxy zinc-rich primer (702) is 25-50 μm, and the thickness of the silicone heat-resistant topcoat (703) is 20-60 μm.

4. A magnetic shielding assembly for a core clamp with optimized oil channels according to claim 1, characterized in that: The iron core clamping plate (1) and the magnetic shielding plate (3) are respectively provided with no less than thirteen first semicircular through slots (5) and second semicircular through slots (9) at equal intervals on their respective sides, and the first semicircular through slots (5) and second semicircular through slots (9) on the iron core clamping plate (1) and the magnetic shielding plate (3) are symmetrically arranged.

5. A magnetic shielding assembly for a core clamp with optimized oil channels according to claim 1, characterized in that: The first semicircular through groove (5) and the second semicircular through groove (9) are respectively provided with no less than six first baffles (7) and second baffles (10), and the first baffles (7) and the second baffles (10) are arranged in an alternating manner.

6. A magnetic shielding assembly for a core clamp with optimized oil channels according to claim 1, characterized in that: The top and bottom of the right side of the iron core clamping plate (1) are fixedly connected to a connecting plate (2), and connecting holes (4) are opened on both sides of the inner cavity of the connecting plate (2).

7. A magnetic shielding assembly for a core clamp with optimized oil channels according to claim 1, characterized in that: The inner cavity of the iron core clamping plate (1) is provided with mounting holes (6) on both sides, and the inner cavity of the magnetic shielding plate (3) is provided with through holes (8) that are compatible with the mounting holes (6) on both sides, and the inner diameters of the through holes (8) and the mounting holes (6) are the same.

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