Multi-type iron core mixed film-coated copper foil parallel plate type water-cooled reactor

Abstract

The utility model provides a multi-type iron core mixed film-coated copper foil parallel plate type water-cooled reactor. The parallel plate type water-cooled reactor is provided with iron cores, the iron core consists of two iron-silicon iron yokes which are arranged up and down and three groups of amorphous magnetic core columns which are positioned between the two iron-silicon iron yokes; each group of amorphous magnetic core columns is sleeved with a coil made of coil-coated film-coated copper foil; gaps I for inserting the water cooling plate are formed between the two ends of the inner coil in the length direction and the amorphous magnetic core column; gaps II for inserting water cooling plates are formed between the two ends of the outer ring coil in the length direction and the two ends of the inner ring coil in the length direction; the water cooling plate is tightly attached to the coil coated copper foil and the amorphous magnetic core column; a water inlet channel and a water outlet channel are arranged in the middle of the water-cooling plate; and a water segregator for simultaneously providing cooling liquid for the water cooling plates in the three coils by adopting a parallel water path mode is also arranged. The utility model solves the problem of heat dissipation of the traditional foil coil and the problem that the plate-type water-cooled reactor cannot work normally due to water leakage.

Description

Technical Field

[0001] This utility model relates to transformers and reactors, and more particularly to a multi-type iron core mixed coated copper foil parallel plate water-cooled reactor. Background Technology

[0002] With the rapid development of modern technology, three-phase reactors are common electrical devices in power systems, used to provide reactance to resistive and capacitive loads of AC power. With the rapid development of power electronics technology, frequency converters are moving towards miniaturization, large capacity, and high reliability. The heat dissipation problem of reactors—that is, reducing the temperature rise of the reactor without significantly increasing its size—has become a key research focus. However, in practical applications, we often encounter situations where the temperature rise of three-phase products is too high under high current. Cooling by adding air ducts or maintaining ventilation is not very effective. To solve these problems, water cooling is the only option, i.e., using water-cooled reactors for heat dissipation and cooling.

[0003] Water-cooled reactors can be divided into hollow copper tube water-cooled reactors and plate water-cooled reactors. The former has certain limitations in application because the flow of coolant inside the conductive copper tube can cause a safety hazard due to the inability to separate water and electricity. In the latter, the water-cooling plate of the cooling system is placed separately inside the foil-wound coil, achieving separation of water and electricity. However, if the water-cooling plate leaks, it will cause the insulation between the conductive foil and the water-cooling system to fail, making the reactor unable to work properly. Moreover, the traditional method of adding insulation paper to wires has high thermal resistance and cannot effectively utilize the cooling effect of the coolant. It is difficult to solve the heat dissipation problem of traditional foil coils and the problem of plate water-cooled reactors failing to work properly due to water leakage. Utility Model Content

[0004] The purpose of this invention is to provide a multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor, which can solve the heat dissipation problem of traditional foil coils and the problem of water leakage causing the plate water-cooled reactor to malfunction. It also features good heat dissipation performance, simple process, high safety and low cost.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A multi-type iron core hybrid copper foil parallel plate water-cooled reactor, wherein the parallel plate water-cooled reactor has an iron core; the iron core consists of two iron-silicon iron yokes arranged vertically and three sets of amorphous magnetic core pillars located between the two iron-silicon iron yokes; the three sets of amorphous magnetic core pillars are spaced apart; each set of amorphous magnetic core pillars consists of multiple vertically arranged amorphous magnetic core pillars; each set of amorphous magnetic core pillars is fitted with a coil made of wire-wrapped copper foil; the coil has inner and outer layers, the inner coil is wound against the two end faces of the amorphous magnetic core pillar in the width direction, and after winding, there is a gap I between the two ends of the inner coil in the length direction and the amorphous magnetic core pillar; the outer coil is attached to... The inner coil is wound around both ends of the inner coil in the width direction. After winding, there is a gap II between the two ends of the outer coil in the length direction and the two ends of the inner coil in the length direction. A water-cooling plate is inserted into the gap I and gap II. The water-cooling plate is set close to the wire-coated copper foil and the amorphous magnetic core column. The water-cooling plate has an inlet channel and an outlet channel in the middle. The parallel plate water-cooled reactor is also equipped with a water distributor that provides coolant to the water-cooling plates in the three coils simultaneously in a parallel water circuit manner. The upper and lower iron-silicon iron yokes are fixed to the upper clamping plate and the lower clamping plate, respectively.

[0007] The water distributor consists of two nested layers, with the inner layer serving as the outlet water distributor and the outer layer as the inlet water distributor. The water distributor is connected to the water-cooling plate via a transport water pipe. The outlet water distributor and the inlet water distributor are connected by a round hole. The inlet water distributor has multiple sets of mounting holes for installing the transport water pipe.

[0008] The water distributor has an inlet channel and an outlet channel installed at both ends.

[0009] Each pair of adjacent amorphous magnetic core pillars, and between the amorphous magnetic core pillar and the ferromagnetic yoke, is filled with epoxy adhesive.

[0010] The water-cooled plate is covered with a layer of thermally conductive silicone grease for heat dissipation and insulation.

[0011] The inlet, outlet, and distributor are welded to the fixed base plate and support base to provide support.

[0012] This utility model proposes a multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor: a water-cooling plate is inserted into the iron core, so that the water-cooling plate is directly connected to the coil coated copper foil and amorphous magnetic core column, which solves the heat dissipation problem of traditional foil coils and the problem of water leakage causing malfunction of plate water-cooled reactors. It has the characteristics of good heat dissipation performance, simple process, high safety and low cost, and is easy to install; it improves the stability and reliability of the reactor, which is of great significance for the normal operation of the power system. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention;

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3-1 , 3-2 This is a schematic diagram of the assembly structure of the water distributor of this utility model;

[0016] Figure 4 This is an exploded view of the water distributor of this utility model;

[0017] Figure 5 This is a schematic diagram of the water-cooled plate and water-cooling structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the wire-coated copper foil of this utility model;

[0019] Figure 7 This is a schematic diagram of the core structure of this utility model.

[0020] In the diagram: 1. Ferromagnetic yoke; 2. Amorphous magnetic core column; 3. Epoxy adhesive; 4. Copper foil with wire wrapping film; 5. Water-cooled plate; 6. Iron core; 7. Water inlet channel; 8. Water outlet channel; 9. Water-cooled plate connection port; 10. Water inlet channel; 11. Water outlet channel; 12. Fixed base plate; 13. Support base; 14. Water inlet distributor; 15. Transport water pipe; 16. Upper clamping plate; 17. Lower clamping plate; 18. Coil; 19. Water inlet distributor; 20. Water outlet distributor. Detailed Implementation

[0021] To better understand the technical content of this utility model, the technical solution of this utility model will be further introduced and explained below with reference to the accompanying drawings and specific embodiments, but it is not limited thereto.

[0022] like Figure 1 , Figure 2 As shown, and refer to Figure 7 A multi-type iron core hybrid copper foil parallel plate water-cooled reactor, wherein the parallel plate water-cooled reactor has an iron core; the iron core consists of two iron-silicon iron yokes arranged vertically and three sets of amorphous magnetic core pillars 2 located between the two iron-silicon iron yokes; the three sets of amorphous magnetic core pillars 2 are spaced apart; each set of amorphous magnetic core pillars 2 consists of multiple vertically arranged amorphous magnetic core pillars 2; each set of amorphous magnetic core pillars 2 is fitted with a coil 18 made of wire-coated copper foil 4; combined with Figure 6The coil 18 has two layers, inner and outer. The inner coil is wound against the two end faces of the amorphous magnetic core column in the width direction, and after winding, there is a gap I between the two ends of the inner coil in the length direction and the amorphous magnetic core column. The outer coil is wound against the two end faces of the inner coil in the width direction, and after winding, there is a gap II between the two ends of the outer coil in the length direction and the two ends of the inner coil in the length direction. A water-cooling plate 5 is inserted into the gaps I and II. The water-cooling plate 5 is set tightly against the copper foil 4 of the coil coating and the amorphous magnetic core column 2, making full contact with the heating surface. Because the iron core and copper foil surfaces are coated, the water-cooling plate will not affect the performance and safety of the product by being placed in the coil. Figure 5 The water-cooled plate 5 is made of pure aluminum and has two water channels in the middle, one inlet channel 7 and one outlet channel 8. The two water channels at the bottom are connected through the water-cooled plate connection port 9. One inlet and one outlet carry away heat. The holes next to the water channels can be opened or closed to adapt to various water circuit connection methods. It is universal and convenient to change the water cooling scheme without changing the structure of the water-cooled plate. The water-cooled plate has an obtuse angle on the outward side to prevent damage to the coil inside the coil. The parallel plate water-cooled reactor is also equipped with a water distributor 14 that provides coolant to the water-cooled plates in the three coils simultaneously in a parallel water circuit manner. The upper and lower iron-silicon iron yokes 1 are fixed to the upper clamping plate 16 and the lower clamping plate 17, respectively.

[0023] like Figure 3-1 , 3-2 , Figure 4 As shown, the water distributor 14 consists of two nested layers, with the inner layer serving as the outlet water distributor 20 and the outer layer as the inlet water distributor 19. The water distributor 14 is connected to the water-cooled plate 2 via a transport water pipe 15. The outlet water distributor 20 and the inlet water distributor 19 are connected by a round hole. The inlet water distributor has multiple sets of mounting holes for installing the transport water pipe. The two ends of the water distributor 14 are respectively equipped with an inlet channel 10 and an outlet channel 11.

[0024] Each pair of adjacent amorphous magnetic core pillars, and between the amorphous magnetic core pillar and the ferromagnetic yoke, is filled with epoxy adhesive.

[0025] The water-cooled plate is covered with a layer of thermally conductive silicone grease for heat dissipation and insulation.

[0026] The inlet, outlet, and distributor are welded to the fixed base plate and support base, providing support and facilitating the connection of the water-cooled cabinet. The transport water pipes 15 are made of hard stainless steel with a hardness >250HV, arranged in a regular and aesthetically pleasing manner, and are sturdy, durable, and resistant to leakage and rust. The water-cooled plate 5 is covered with a layer of thermally conductive silicone grease, which not only provides insulation but also removes more heat.

[0027] Amorphous magnetic cores are made by mixing iron-silicon and iron-based amorphous materials.

[0028] Working principle: Coolant enters the distributor 14 from the inlet channel 10, and then is distributed to four coolants for each coil, totaling 12 water-cooled plates 5. The water-cooled plates 5 and the distributor are connected in parallel by a transport water pipe 15. The water flows through the water-cooled plates 5 and exits from another outlet. The coolant used is 50 / 50 ethylene glycol, which efficiently removes heat from the coils 18 and the iron core 6, preventing temperature rise. The coils 18 are made of coated copper foil 4, which allows the reactor to carry a large current. The coated copper foil also provides excellent flatness and uniform heat distribution. The water-cooled plate 5 and the amorphous magnetic core column 2 are in close contact, allowing the heat from the coil 18 to be evenly conducted to the water-cooled plate 5, preventing overheating of the coil 18 and improving heat dissipation efficiency and safety. The water-cooled plate 5 is in close contact with both sides of the amorphous magnetic core column 2 through a viscous thermally conductive material, which can effectively dissipate the heat generated by the reactor, preventing the heat from accumulating in the iron core 6 and radiating to the coil 18, thus avoiding excessive temperature rise in the coil 18. At the same time, the parallel use of water-cooled plates can ensure that the temperature of each water-cooled plate is consistent, which greatly stabilizes the temperature of the reactor itself, making the reactor work for a longer time and more durable. Moreover, since aluminum has a magnetic shielding effect, it can effectively prevent the magnetic field of the iron core 6 from diffracting into the upper space and causing electromagnetic interference to external devices.

[0029] The above description is only a preferred embodiment of this patent and does not limit the scope of this patent. Any equivalent structural or procedural transformations made using the description and drawings, whether directly or indirectly applied to other related technical fields, shall fall within the scope of protection of this patent.

Claims

1. A multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor, characterized in that: The parallel plate-type water-cooled reactor described above has an iron core; the iron core consists of two iron-silicon yokes arranged vertically and three sets of amorphous magnetic core pillars located between the two iron-silicon yokes; the three sets of amorphous magnetic core pillars are spaced apart; each set of amorphous magnetic core pillars consists of multiple pillars arranged vertically; each set of amorphous magnetic core pillars is fitted with a coil made of wire-coated copper foil; the coil has two layers, inner and outer, with the inner coil wound against the two end faces of the amorphous magnetic core pillar in the width direction, and after winding, there is a gap I between the two ends of the inner coil in the length direction and the amorphous magnetic core pillar; the outer coil is attached to... The inner coil is wound around both ends of the inner coil in the width direction. After winding, there is a gap II between the two ends of the outer coil in the length direction and the two ends of the inner coil in the length direction. A water-cooling plate is inserted into the gap I and gap II. The water-cooling plate is set close to the wire-coated copper foil and the amorphous magnetic core column. The water-cooling plate has an inlet channel and an outlet channel in the middle. The parallel plate water-cooled reactor is also equipped with a water distributor that provides coolant to the water-cooling plates in the three coils simultaneously in a parallel water circuit manner. The upper and lower iron-silicon iron yokes are fixed to the upper clamping plate and the lower clamping plate, respectively.

2. The multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor as described in claim 1, characterized in that: The water distributor consists of two nested layers, with the inner layer serving as the outlet water distributor and the outer layer as the inlet water distributor. The water distributor is connected to the water-cooling plate via a transport water pipe. The outlet water distributor and the inlet water distributor are connected by a round hole. The inlet water distributor has multiple sets of mounting holes for installing the transport water pipe.

3. A multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor as described in claim 1, characterized in that: The water distributor has an inlet channel and an outlet channel installed at both ends.

4. A multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor as described in claim 1, characterized in that: Each pair of adjacent amorphous magnetic core pillars, and between the amorphous magnetic core pillar and the ferromagnetic yoke, is filled with epoxy adhesive.

5. A multi-type iron core hybrid coated copper foil parallel plate water-cooled reactor as described in claim 1, characterized in that: The water-cooled plate is covered with a layer of thermally conductive silicone grease for heat dissipation and insulation.

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