A hybrid cooling and heat dissipation amorphous transformer

Abstract

The present invention discloses a hybrid cooling and heat dissipation amorphous transformer, comprising a shell and a base, the shell comprising a mounting frame and a pair of circulation frames, the two circulation frames being symmetrically mounted on both sides of the mounting frame, a T-shaped shaft being symmetrically fixedly connected below the base, the T-shaped shaft being provided with a plurality of threaded holes, the circulation frame being provided with a plurality of openings, a heat dissipation box being inserted in each of the openings, a heat sink being connected between two adjacent heat dissipation boxes, a sealant being smeared on the inner wall of the heat dissipation box, the heat dissipation box being filled with water, and an amorphous alloy iron core being installed in the mounting frame. The present invention provides a plurality of openings on the circulation frame, the presence of the openings increases the height difference during the internal cooling oil circulation process, accelerates the circulation of the internal cooling oil, improves the heat dissipation effect by accelerating the circulation, quickly conducts the heat generated by the current, and cools with the water in the heat dissipation box at the same time, further enhancing the heat dissipation effect.

Description

Technical Field

[0001] The invention relates to the technical field of amorphous alloy transformers, and in particular to a hybrid cooling and heat dissipation amorphous transformer. Background Art

[0002] Amorphous alloy transformer is a low-loss, high-efficiency power transformer. This type of transformer uses iron-based amorphous metal as the core. Since this material does not have a long-range ordered structure, its magnetization and demagnetization are easier than general magnetic materials. Therefore, the iron loss (i.e. no-load loss) of amorphous alloy transformer is 70-80% lower than that of traditional transformers that generally use silicon steel as the core. As the loss is reduced, the demand for power generation also decreases, and the emission of greenhouse gases such as carbon dioxide is also reduced accordingly.

[0003] However, amorphous alloy transformers will still generate heat during operation. When the high-voltage and low-voltage resistance coils convert voltage, the thermal effect of the current causes the inside of the transformer to heat up. Generally, the inside of the transformer is immersed in cooling oil for cooling. The cooling oil can conduct the heat generated by the resistor, but the specific heat capacity of the cooling oil is limited. In a closed transformer box, the amount of heat that the cooling oil can conduct is even more limited. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the method of dissipating heat through cooling oil in the transformer, due to the limited specific heat capacity of the cooling oil, the amount of heat that can be dissipated is also limited, and a hybrid cooling and heat dissipation amorphous transformer is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hybrid cooling and heat dissipating amorphous transformer comprises an outer shell and a base, wherein the outer shell comprises an installation frame and a pair of circulation frames, wherein the two circulation frames are symmetrically mounted on both sides of the installation frame, wherein a T-shaped shaft is symmetrically fixedly connected to the lower part of the base, wherein the T-shaped shaft is provided with a plurality of threaded holes, wherein the circulation frame is provided with a plurality of openings, wherein a heat dissipation box is inserted in each of the openings, and a heat dissipation fin is connected between two upper and lower adjacent heat dissipation boxes, wherein the inner wall of the heat dissipation box is coated with sealant, wherein the heat dissipation box is filled with water, and wherein an amorphous alloy core is mounted in the installation frame, wherein the amorphous alloy core is made of an iron-based amorphous alloy, wherein three side edges are arranged on the amorphous alloy core, wherein a low-voltage coil is sleeved on each of the side edges, and a high-voltage coil is sleeved on the outer side of each low-voltage coil.

[0007] Preferably, a buffer mechanism is installed on both the upper and lower sides of the amorphous alloy core, and the buffer mechanism includes a pair of arc shafts, both arc shafts are provided with slide grooves, a slider is connected between the two slide grooves, and both ends of the slider pass through the two slide grooves.

[0008] Preferably, one end of the buffer mechanism is connected to a clamping plate, which is clamped to the amorphous alloy iron core, and the other end of the buffer mechanism is clamped to the inner wall of the mounting frame through a second clamping block. A socket corresponding to the arc shaft is provided on the clamping plate, and the arc shaft is inserted in the socket. An insertion shaft is fixedly installed at one end of the arc shaft close to the socket, and the insertion shaft passes through the socket and is fixed in the socket by a nut.

[0009] Preferably, a plurality of fixing mechanisms are symmetrically installed on the left and right sides of the amorphous alloy iron core, and the fixing mechanisms include a first fixed shaft and a second fixed shaft, the second fixed shaft is fixedly connected to one side of the first fixed shaft, one end of the first fixed shaft is fixedly connected to a first clamping block, the first clamping block is clamped with the amorphous alloy iron core, and a clamping shaft corresponding to the second fixed shaft is fixedly installed on the inner wall of the installation frame, and the clamping shaft is inserted in the second fixed shaft.

[0010] Preferably, connecting mechanisms are symmetrically installed on both sides of the base, and the connecting mechanisms include an L-shaped shaft. A sleeve corresponding to the L-shaped shaft is fixedly connected to the bottom of the base, and two rotating shafts are arranged in the sleeve. The two rotating shafts are rotatably connected, one of the rotating shafts is fixedly connected to the inner wall of the sleeve, and the other rotating shaft is fixedly connected to the L-shaped shaft. Springs are sleeved on the outer sides of the two rotating shafts, and both ends of the springs are fixedly connected to the sleeve and the L-shaped shaft respectively. A groove is arranged at the end of the L-shaped shaft away from the sleeve, and a threaded hole is also opened on the inner wall of the groove.

[0011] Preferably, a groove is provided at the connection between the heat sink and the heat sink box, a connecting plate is clamped in the groove, and the connecting plate is respectively connected to the heat sink and the heat sink box by screws. Multiple heat sink plates are fixedly connected to the outer sides of the mounting frame and the circulation frame, and the heat sink plates are made of copper.

[0012] Preferably, the magnetic flux density of the amorphous alloy core is 1.3-1.35T, the amorphous alloy core is composed of a plurality of amorphous alloy monoliths, two adjacent amorphous alloy monoliths are bonded by epoxy resin, and the thickness of the amorphous alloy monolith is 0.03mm.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Multiple openings are opened on the circulation frame. The existence of the openings increases the height difference during the circulation of the internal cooling oil, accelerates the circulation of the internal cooling oil, improves the heat dissipation effect by accelerating the circulation, quickly conducts the heat generated by the current, and cooperates with the water cooling effect in the heat dissipation box to further enhance the heat dissipation effect.

[0015] 2. Install buffer mechanisms on the upper and lower sides of the amorphous alloy core, and install fixing mechanisms on the left and right sides of the amorphous alloy core to stabilize the internal structure. A transformer with a stable structure ensures safety during use, improves its ability to withstand shaking, and increases its adaptability to the general environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a hybrid cooling and heat dissipation amorphous transformer proposed by the present invention;

[0017] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of a heat dissipation box in a hybrid cooling and heat dissipation amorphous transformer proposed by the present invention;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure inside the installation frame of a hybrid cooling and heat dissipation amorphous transformer proposed by the present invention;

[0021] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle;

[0022] Figure 7 for Figure 5 Schematic diagram of the structure at D in the figure.

[0023] In the figure: 1 mounting frame, 2 amorphous alloy core, 3 high voltage coil, 4 low voltage coil, 5 first clamping block, 6 first fixed shaft, 7 clamping shaft, 8 second fixed shaft, 9 clamping plate, 10 side, 11 second clamping block, 12 arc shaft, 13 circulation frame, 14 opening, 15 T-type shaft, 16 threaded hole, 17 twisted mouth, 18 L-type shaft, 19 heat sink, 20 heat sink box, 21 sealant, 22 base, 23 sleeve, 24 spring, 25 rotating shaft, 26 connecting plate, 27 socket, 28 plug shaft, 29 slider, 30 slide groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-7 A hybrid cooling and heat dissipation amorphous transformer comprises a shell and a base 22. The shell comprises a mounting frame 1 and a pair of circulation frames 13. The two circulation frames 13 are symmetrically mounted on both sides of the mounting frame 1. A T-shaped shaft 15 is symmetrically fixedly connected below the base 22. The T-shaped shaft 15 is provided with a plurality of threaded holes 16. The circulation frame 13 is provided with a plurality of openings 14. A heat dissipation box 20 is inserted into each opening 14. A heat dissipation fin 19 is connected between two adjacent heat dissipation boxes 20. A sealant 21 is applied on the inner wall of the heat dissipation box 20. The sealant 21 is used to seal water to prevent water from leaking out. The heat dissipation box 20 is filled with water. An amorphous alloy core 2 is installed in the mounting frame 1, wherein the amorphous alloy core 2 is a three-phase The design of the form, the amorphous alloy core 2 is made of iron-based amorphous alloy, and three side edges 10 are arranged on the amorphous alloy core 2, and a low-voltage coil 4 is sleeved on each side edge 10, and a high-voltage coil 3 is sleeved on the outside of each low-voltage coil 4, and a groove is provided at the connection between the heat sink 19 and the heat sink box 20, and a connecting plate 26 is clamped in the groove, and the connecting plate 26 is respectively connected to the heat sink 19 and the heat sink box 20 by screws, and the heat sink 19 and the heat sink box 20 are connected therebetween by the connecting plate 26, and the screw connection method is also convenient for installation and disassembly, and multiple heat sinks are fixedly connected to the outside of the installation frame 1 and the circulation frame 13, and the heat sink is made of copper, and the heat sink is used to increase the heat dissipation effect of the transformer;

[0027] The magnetic flux density of the amorphous alloy core 2 is 1.3-1.35T. The amorphous alloy core 2 is composed of multiple amorphous alloy monoliths. Two adjacent amorphous alloy monoliths are bonded by epoxy resin. The thickness of the amorphous alloy monolith is 0.03mm. When designing an amorphous transformer, the saturation magnetic flux density of the amorphous alloy material is low, so the rated magnetic flux density should not be too high. A good no-load loss value can be obtained within this range. The thickness of the amorphous alloy monolith is set to 0.03mm, and a lamination factor of more than 82% can be obtained. Compared with the traditional silicon steel core, the amorphous alloy transformer has smaller magnetic flux loss due to the easier magnetization and demagnetization of the amorphous alloy material. Correspondingly, in the process of power generation, the electric energy consumed in the transformer is smaller, and the overall electric energy demand is smaller. The amorphous alloy material is also more resistant to power waveform distortion. Under the same high-order harmonics and the same distortion, the iron-based amorphous alloy material has smaller losses.

[0028] Among them, buffer mechanisms are installed on the upper and lower sides of the amorphous alloy core 2, and the buffer mechanisms include a pair of arc shafts 12, and slide grooves 30 are opened on the two arc shafts 12. A slider 29 is connected between the two slide grooves 30, and the two ends of the slider 29 pass through the two slide grooves 30. Buffer mechanisms are installed on the upper and lower sides of the amorphous alloy core 2. The buffer mechanism has a fixing effect. If shaking occurs inside the installation frame 1, the buffer mechanism is used to reduce the shaking amplitude to ensure the safe use of the equipment. The two arc shafts 12 are staggered and connected by the slider 29. The elastic arc shaft 12 has a buffering and shock-absorbing effect. If the shaking causes the arc shaft 12 to be displaced, the slider 29 ensures that the two arc shafts 12 are connected together.

[0029] Among them, one end of the buffer mechanism is connected to a clamping plate 9, which is clamped with the amorphous alloy iron core 2, and the other end of the buffer mechanism is clamped with the inner wall of the mounting frame 1 through a second clamping block 11. A socket 27 corresponding to the arc shaft 12 is opened on the clamping plate 9, and the arc shaft 12 is inserted in the socket 27. An insertion shaft 28 is fixedly installed on the end of the arc shaft 12 close to the socket 27. The insertion shaft 28 passes through the socket 27 and is fixed in the socket 27 by a nut. One end of the arc shaft 12 is clamped with the inner wall of the mounting frame 1 through the second clamping block 11, and the clamping plate 9 is clamped on the inner wall of the amorphous alloy iron core 2. One end of the arc shaft 12 passes through the socket 27 on the clamping plate 9 and is fixed in the socket 27 by a nut, thereby realizing a fixed connection between the arc shaft 12 and the clamping plate 9.

[0030] Among them, multiple fixing mechanisms are symmetrically installed on the left and right sides of the amorphous alloy core 2, and the fixing mechanism includes a first fixed shaft 6 and a second fixed shaft 8. The second fixed shaft 8 is fixedly connected to one side of the first fixed shaft 6, and one end of the first fixed shaft 6 is fixedly connected to a first clamping block 5. The first clamping block 5 is clamped with the amorphous alloy core 2. A clamping shaft 7 corresponding to the second fixed shaft 8 is fixedly installed on the inner wall of the installation frame 1, and the clamping shaft 7 is inserted in the second fixed shaft 8. The fixing mechanism has a fixing effect and is used to fix the amorphous alloy core 2 in the installation frame 1. The fixing mechanism is installed on both sides of the amorphous alloy core 2, and the amorphous alloy core 2 is pressed against the inner wall of the installation frame 1 through the first fixed shaft 6. The fixing mechanism is installed on the four corners of the amorphous alloy core 2, wherein one side of the first fixed shaft 6 is clamped with the clamping shaft 7 using the second fixed shaft 8, thereby effectively playing a fixing effect on the amorphous alloy core 2;

[0031] Among them, the base 22 is symmetrically installed with a connecting mechanism on both sides, and the connecting mechanism includes an L-shaped shaft 18. The bottom of the base 22 is fixedly connected with a sleeve 23 corresponding to the L-shaped shaft 18. Two rotating shafts 25 are arranged in the sleeve 23. The two rotating shafts 25 are rotatably connected. One of the rotating shafts 25 is fixedly connected to the inner wall of the sleeve 23, and the other rotating shaft 25 is fixedly connected to the L-shaped shaft 18. The outer sides of the two rotating shafts 25 are sleeved with springs 24. The two ends of the spring 24 are respectively fixedly connected to the sleeve 23 and the L-shaped shaft 18. The end of the L-shaped shaft 18 away from the sleeve 23 is provided with a groove 17, and the inner wall of the groove 17 is also provided with a threaded hole 16. The general transformer only uses T The L-shaped shaft 15 is used for fixing. The transformer cannot be shaken at will during use. Shaking may easily cause damage to the internal structure and cause accidents. Therefore, a connecting mechanism is set to reinforce the transformer, fix the entire transformer from the inside to the outside and reduce the amplitude. A rotating shaft 25 that can rotate with each other is set at one end of the L-shaped shaft 18. A spring 24 is sleeved on the outside of the rotating shaft 25. The elastic action of the spring 24 enables it to reset in time after the rotating shaft 25 rotates with each other, so that it has a buffering effect. At the same time, the user uses a bolt at the other end of the L-shaped shaft 18, and the bolt passes through the threaded hole 16 to be fixed to the bracket for installing the transformer. Then, the connecting mechanism is fixed and has a shock-absorbing and buffering effect.

[0032] In the present invention, when the user uses the device, a buffer mechanism is installed on the upper and lower sides of the amorphous alloy core 2, and a fixing mechanism is installed on the left and right sides of the amorphous alloy core 2 to reinforce the position of the amorphous alloy core 2. The position of the amorphous alloy core 2 inside the installation frame 1 is stabilized by the cooperation between the buffer mechanism and the fixing mechanism. The arc shaft 12 in the buffer mechanism is elastic. When the amorphous alloy core 2 inside the installation frame 1 shakes, the elastic force of the arc shaft 12 can effectively reduce the amplitude of the shaking of the amorphous alloy core 2. The structure between the clamping plate 9 and the arc shaft 12 is detachable, which is convenient for installation and can also adapt to transformers of different models.

[0033] The mounting frame 1 and the arc-shaped shaft 12 are filled with cooling oil, the entire amorphous alloy core 2, the low-voltage coil 4 and the high-voltage coil 3 are all immersed in the cooling oil, and the high-voltage electricity is transmitted through the low-voltage coil 4. According to the electromagnetic mutual induction effect, a low-voltage current will appear on the low-voltage coil 4. Due to the thermal effect of the current, heat will be generated on the high-voltage coil 3 and the low-voltage coil 4 through which the current passes, and the cooling oil can conduct the heat generated by the power-on. The density of the cooling oil will present different densities due to different temperatures. The cooling oil with a higher temperature has a smaller density, and the cooling oil with a lower temperature has a higher density. The cooling oil temperature close to the amorphous alloy core 2 is higher, that is, the cooling oil temperature in the mounting frame 1 is higher, and the cooling oil temperature away from the amorphous alloy core 2 is lower, that is, the cooling oil temperature in the circulation frame 13 is lower. The density difference caused by the temperature will cause the internal cooling oil to flow, the high-density cooling oil will drop, and the low-density cooling oil will rise, and a plurality of openings 14 are opened on the circulation frame 13, and the plurality of openings 14 increase the surface of the circulation frame 13. The area increases the contact surface for heat conduction with the external environment, which is more conducive to heat dissipation. At the same time, since a plurality of heat dissipation boxes 20 filled with water are inserted in the opening 14, the specific heat capacity of the heat dissipation box 20 is much greater than that of water. During the circulation of the cooling oil in the circulation frame 13, it will inevitably flow through the range filled with the heat dissipation box 20. The heat conduction effect of metal is better. After heat conduction, part of the heat of the cooling oil will be absorbed by the water during the up and down circulation. The heat dissipation box 20 is in contact with the outer surface of the opening 14 to achieve heat conduction between the two. At the same time, there is no direct contact between the water and the cooling oil. The interior of the transformer still guarantees good sealing and safety. The provision of multiple openings 14 also increases the height difference between the internal cooling oils, which has the effect of accelerating the circulation. At the same time, in conjunction with the effect of water cooling, a variety of heat dissipation methods are used to dissipate heat for the transformer, avoiding the disadvantages of a single cooling oil heat dissipation method, and adopting the method of accelerating the cooling oil circulation and cooperating with water cooling to achieve better heat dissipation effect.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hybrid cooling and heat dissipating amorphous transformer, comprising a housing and a base (22), characterized in that: The housing comprises a mounting frame (1) and a pair of circulation frames (13), the two circulation frames (13) being symmetrically mounted on both sides of the mounting frame (1), a T-shaped shaft (15) being symmetrically fixedly connected below the base (22), the T-shaped shaft (15) being provided with a plurality of threaded holes (16), the circulation frame (13) being provided with a plurality of openings (14), each of the openings (14) being provided with a heat dissipation box (20), and two upper and lower adjacent heat dissipation boxes (20) being connected to each other. A heat sink (19) is provided, a sealant (21) is applied on the inner wall of the heat sink box (20), the heat sink box (20) is filled with water, an amorphous alloy core (2) is installed in the installation frame (1), the amorphous alloy core (2) is made of an iron-based amorphous alloy, three side edges (10) are arranged on the amorphous alloy core (2), a low-voltage coil (4) is sleeved on each of the side edges (10), and a high-voltage coil (3) is sleeved on the outer side of each of the low-voltage coils (4); The amorphous alloy core (2) is provided with a buffer mechanism on both the upper and lower sides, the buffer mechanism comprising a pair of arc-shaped shafts (12), both arc-shaped shafts (12) are provided with a slide groove (30), a slider (29) is connected between the two slide grooves (30), and both ends of the slider (29) pass through the two slide grooves (30); One end of the buffer mechanism is connected to a clamping plate (9), the clamping plate (9) is clamped to the amorphous alloy iron core (2), and the other end of the buffer mechanism is clamped to the inner wall of the installation frame (1) through a second clamping block (11); a socket (27) corresponding to the arc-shaped shaft (12) is provided on the clamping plate (9), the arc-shaped shaft (12) is inserted into the socket (27), and an insertion shaft (28) is fixedly installed at one end of the arc-shaped shaft (12) close to the socket (27), the insertion shaft (28) passes through the socket (27), and the insertion shaft (28) is fixed in the socket (27) by a nut; The installation frame (1) and the arc-shaped shaft (12) are filled with cooling oil, and the entire amorphous alloy core (2), the low-voltage coil (4) and the high-voltage coil (3) are immersed in the cooling oil, and the high-voltage electricity is transmitted through the low-voltage coil (4).

2. A hybrid cooling and heat dissipating amorphous transformer according to claim 1, characterized in that: A plurality of fixing mechanisms are symmetrically mounted on the left and right sides of the amorphous alloy core (2), the fixing mechanisms comprising a first fixing shaft (6) and a second fixing shaft (8), the second fixing shaft (8) being fixedly connected to one side of the first fixing shaft (6), one end of the first fixing shaft (6) being fixedly connected to a first clamping block (5), the first clamping block (5) being clamped to the amorphous alloy core (2), a clamping shaft (7) corresponding to the second fixing shaft (8) being fixedly mounted on the inner wall of the mounting frame (1), the clamping shaft (7) being inserted into the second fixing shaft (8).

3. A hybrid cooling and heat dissipating amorphous transformer according to claim 1, characterized in that: A connecting mechanism is symmetrically installed on both sides of the base (22), and the connecting mechanism includes an L-shaped shaft (18). A sleeve (23) corresponding to the L-shaped shaft (18) is fixedly connected to the bottom of the base (22). Two rotating shafts (25) are arranged in the sleeve (23). The two rotating shafts (25) are rotatably connected, one of the rotating shafts (25) is fixedly connected to the inner wall of the sleeve (23), and the other rotating shaft (25) is fixedly connected to the L-shaped shaft (18). Springs (24) are sleeved on the outer sides of the two rotating shafts (25), and the two ends of the spring (24) are fixedly connected to the sleeve (23) and the L-shaped shaft (18) respectively. A groove (17) is arranged at one end of the L-shaped shaft (18) away from the sleeve (23), and a threaded hole (16) is also opened on the inner wall of the groove (17).

4. The hybrid cooling and heat dissipating amorphous transformer according to claim 1, characterized in that: A groove is provided at the connection between the heat sink (19) and the heat sink box (20), a connecting plate (26) is clamped in the groove, and the connecting plate (26) is respectively connected to the heat sink (19) and the heat sink box (20) by screws. The outer sides of the installation frame (1) and the circulation frame (13) are fixedly connected with a plurality of heat sinks, and the heat sinks are made of copper.

5. The hybrid cooling and heat dissipating amorphous transformer according to claim 1, characterized in that: The magnetic flux density of the amorphous alloy core (2) is 1.3-1.35 T. The amorphous alloy core (2) is composed of a plurality of amorphous alloy monoliths. Two adjacent amorphous alloy monoliths are bonded by epoxy resin. The thickness of the amorphous alloy monolith is 0.03 mm.

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