Transformer based on micro-channel heat dissipation and magnetorheological fluid vibration reduction

Abstract

The invention discloses a transformer based on micro-channel heat dissipation and magnetorheological fluid vibration reduction, and belongs to the field of transformers, the transformer comprises a main body and a radiator fixedly connected to the main body, a sleeve is fixedly connected to the top of the main body, heat dissipation pieces are fixedly connected to the two sides of the inner wall of the main body, and the heat dissipation pieces are used for conducting heat dissipation on a winding in the main body; the bottom of the main body is fixedly connected with a vibration reduction piece which is used for buffering vibration generated in the operation process of the main body. Heat generated by the winding can be directly and rapidly conducted, and no extra conduction loss exists; the micro-channels in the substrate greatly increase the contact area of the cooling liquid and the substrate, the micro-channels are matched with an external closed-loop cooling liquid circulation system to realize rapid heat exchange and export, the cooling liquid circulation is stable and controllable, and the winding temperature can be continuously controlled in a safe range; the double-heat-dissipation structure effectively avoids the problems of insulation performance reduction, part aging and the like caused by local overheating, the operation stability of the transformer is remarkably improved, and the requirement for long-time high-strength power transmission is met.

Description

Technical Field

[0001] This invention belongs to the field of transformer technology, specifically relating to a transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction. Background Technology

[0002] During operation, transformer windings generate a significant amount of heat. If heat dissipation is insufficient, internal temperatures can become excessively high, affecting insulation performance and operational stability. Simultaneously, transformer operation involves vibration; prolonged vibration not only generates noise pollution but can also lead to component loosening and wear, shortening equipment lifespan. Traditional transformer heat dissipation and vibration damping structures suffer from several core problems: limited heat dissipation efficiency, making it difficult to quickly dissipate heat generated by the windings, leading to localized overheating; and poor vibration damping performance, often employing rigid supports or ordinary elastic damping structures, which cannot adaptively buffer vibrations of different frequencies, resulting in poor vibration damping stability.

[0003] Therefore, there is an urgent need for a transformer that combines efficient heat dissipation with high-quality vibration reduction to solve the problems of heat dissipation and vibration reduction and improve the reliability of equipment operation. Summary of the Invention

[0004] The purpose of this invention is to provide a transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction, comprising a main body and a heat sink fixedly connected to the main body, a sleeve fixedly connected to the top of the main body, and heat dissipation components fixedly connected to both sides of the inner wall of the main body, the heat dissipation components being used to dissipate heat from the windings inside the main body;

[0006] Vibration damping components are fixedly connected to the bottom of the main body, which are used to buffer the vibrations generated during the operation of the main body.

[0007] The heat dissipation component includes a heat dissipation base plate fixedly connected to the inner wall of the main body and microchannels opened in the heat dissipation base plate. An inlet pipe and an outlet pipe are fixedly connected to the front of the heat dissipation base plate. The inlet pipe is used to input coolant into the microchannels, and the outlet pipe is used to discharge the coolant after heat absorption in the microchannels.

[0008] The above scheme forms a dual heat dissipation structure with the radiator and heat sink components, and the sleeve ensures the safety of power transmission. The heat sink component is the core heat dissipation component. The heat sink base plate is attached to the winding to directly absorb heat. The internal microchannel increases the contact area between the coolant and the heat sink base plate, improving heat exchange efficiency. The coolant is input through the inlet pipe and discharged through the outlet pipe, forming a circulating heat dissipation system to quickly dissipate heat from the winding and avoid local overheating. The vibration damping component buffers the vibration of the main body during operation, reducing vibration damage to components and noise pollution. The overall structure takes into account both heat dissipation and vibration damping, improving the stability of equipment operation.

[0009] As a preferred embodiment, mounting holes with internal threads are provided at the four corners of the bottom of the main body.

[0010] Using the above solution, the internal threaded mounting holes at the four corners of the bottom of the main body provide installation positions for fixing the vibration damping components, ensuring that the vibration damping components are firmly connected to the main body, while the threaded connection method facilitates disassembly and maintenance.

[0011] In a preferred embodiment, the front of both the inlet pipe and the outlet pipe penetrates the main body and extends to the outside of the main body, and one side of the heat dissipation substrate is attached to the inner winding of the main body.

[0012] Using the above solution, the heat dissipation substrate is directly attached to the winding, which can quickly conduct the heat generated by the winding to the heat dissipation substrate, and then carry it away through the coolant in the microchannel, reducing heat conduction loss; the inlet pipe and outlet pipe extend to the outside of the main body, which is convenient to connect to the external coolant circulation system to realize continuous supply and circulation heat dissipation of coolant.

[0013] In a preferred embodiment, the vibration damping component includes a magnetorheological fluid tank and a magnetorheological fluid stored in the tank. Through holes are provided at the four corners of the top of the magnetorheological fluid tank, and an upper support base is slidably connected to the through holes. A lower support base is fixedly connected to the bottom of the magnetorheological fluid tank, and permanent magnets are fixedly connected to the top and bottom of the tank.

[0014] Using the above scheme, the magnetorheological fluid has the characteristic of adjusting its viscosity according to the change of magnetic field. The permanent magnet forms a stable magnetic field, which keeps the magnetorheological fluid at a certain viscosity to achieve the vibration reduction effect. The upper support base slides with the through hole of the magnetorheological fluid tank, which can convert the vibration transmitted by the main body into the up and down movement of the piston. The vibration energy is consumed by the damping effect of the magnetorheological fluid. The lower support base provides stable support for the vibration damping component.

[0015] In a preferred embodiment, the upper support base includes a support frame and internal threaded holes at the four corners of the bottom of the support frame. A fixing bolt is connected to the internal thread of the internal threaded hole. Several connecting holes are provided on the support frame. A piston is fixedly connected to each of the four corners of the bottom of the support frame.

[0016] Using the above scheme, the support frame is the core load-bearing component of the upper support base. The fixing bolt 1 connects the upper support base to the main body by engaging with the mounting hole at the bottom of the main body through the internal thread hole. The connection hole 1 facilitates the adjustment of the connection position according to the installation requirements, improving adaptability. The bottom piston can penetrate into the magnetorheological fluid tank to transmit the vibration of the main body to the magnetorheological fluid, and the vibration is buffered by the damping effect of the magnetorheological fluid.

[0017] In one preferred embodiment, the piston is slidably connected to the top through hole of the magnetorheological fluid tank, and one end of the fixing bolt is threadedly connected to the mounting hole at the bottom of the main body.

[0018] The above scheme allows the piston to move up and down flexibly through the sliding fit between the piston and the through hole, ensuring that the vibration energy can be effectively transmitted and consumed by the magnetorheological fluid. The threaded connection between the fixing bolt and the mounting hole of the main body ensures that the upper support base is tightly connected to the main body, avoiding relative displacement during vibration. At the same time, it facilitates disassembly and maintenance, and allows for quick separation of the main body and the vibration damping components for repair.

[0019] In a preferred embodiment, the lower support base includes a connecting block fixedly connected to the bottom of the magnetorheological fluid tank and a connecting frame fixedly connected to the bottom of the connecting block. Each of the four corners of the top of the connecting frame is threaded with a fixing bolt, and the connecting frame is provided with a number of connecting holes.

[0020] Using the above scheme, the connecting block achieves a firm connection between the lower support base and the magnetorheological fluid tank, the connecting frame provides bottom support for the vibration damping components, and ensures the overall structure is placed stably; the second fixing bolt is used to connect with the external installation platform; the second connecting hole facilitates fixing the lower support base to the installation platform, improves the overall installation stability of the transformer, and prevents displacement during operation.

[0021] In a preferred embodiment, two connecting blocks are provided, and the two connecting blocks are respectively fixedly connected to the two sides of the bottom of the magnetorheological fluid tank.

[0022] By adopting the above scheme, the two symmetrically distributed connecting blocks can make the bottom of the magnetorheological fluid tank evenly stressed, avoiding tilting or damage caused by unilateral stress, and enhancing the stability and durability of the overall structure of the vibration damping component.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This transformer employs a dual heat dissipation system combining heat sink components and an external heat sink. The heat dissipation substrate is tightly fitted to the windings, allowing for direct and rapid heat transfer from the windings without additional conduction losses. The microchannels within the substrate significantly increase the contact area between the coolant and the substrate, and in conjunction with the external closed-loop coolant circulation system, enable rapid heat exchange and removal. The coolant circulation is stable and controllable, continuously keeping the winding temperature within a safe range. This dual heat dissipation structure effectively avoids problems such as reduced insulation performance and component aging caused by localized overheating, significantly improving the transformer's operational stability and adapting to the demands of long-term, high-intensity power transmission.

[0025] The vibration damping components form a stable magnetic field through permanent magnets, which keeps the magnetorheological fluid at a fixed damping force, providing continuous and reliable resistance support for vibration buffering. After the transformer's operating vibration is transmitted to the support frame, it drives the piston to reciprocate in the magnetorheological fluid. The fixed damping force can effectively hinder the piston's movement and consume vibration energy. The vibration is then gradually attenuated through the upper support base, the magnetorheological fluid, and the lower support base. The symmetrical connecting blocks and the double support structure ensure uniform force distribution, stable vibration reduction without deviation, and extend the service life of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall front structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the heat sink structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the vibration damping component structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the upper support base structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the lower support base structure of the present invention.

[0032] In the diagram: 1. Radiator; 2. Sleeve; 3. Main body; 4. Heat dissipation component; 5. Vibration damping component; 41. Heat dissipation base plate; 42. Microchannel; 43. Liquid inlet pipe; 44. Liquid outlet pipe; 51. Upper support base; 52. Permanent magnet; 53. Magnetorheological fluid tank; 54. Lower support base; 511. Support frame; 512. Fixing bolt one; 513. Connecting hole one; 514. Piston; 541. Connecting block; 542. Connecting frame; 543. Connecting hole two; 544. Fixing bolt two. Detailed Implementation

[0033] Please see Figure 1-6 The present invention provides a transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction, including a main body 3 and a heat sink 1 fixedly connected to the main body 3. A sleeve 2 is fixedly connected to the top of the main body 3, and heat sinks 4 are fixedly connected to both sides of the inner wall of the main body 3. The heat sinks 4 are used to dissipate heat from the windings inside the main body 3.

[0034] A vibration damping component 5 is fixedly connected to the bottom of the main body 3. The vibration damping component 5 is used to buffer the vibration generated during the operation of the main body 3.

[0035] The heat sink 4 includes a heat sink substrate 41 fixedly connected to the inner wall of the main body 3 and a microchannel 42 opened in the heat sink substrate 41. The front part of the heat sink substrate 41 is fixedly connected to an inlet pipe 43 and an outlet pipe 44. The inlet pipe 43 is used to input coolant into the microchannel 42, and the outlet pipe 44 is used to discharge the coolant after heat absorption in the microchannel 42.

[0036] The radiator 1 and the heat sink 4 form a dual heat dissipation structure, and the sleeve 2 ensures the safety of power transmission. The heat sink 4 is the core heat dissipation component. The heat sink base plate 41 is attached to the winding to directly absorb heat. The internal microchannel 42 increases the contact area between the coolant and the heat sink base plate 41, improving the heat exchange efficiency. The coolant is input through the inlet pipe 43 and discharged through the outlet pipe 44, forming a circulating heat dissipation system to quickly dissipate the heat from the winding and avoid local overheating. The vibration damping component 5 buffers the vibration of the main body 3 during operation, reducing the damage to the components and noise pollution caused by vibration. The overall structure takes into account both heat dissipation and vibration damping, improving the stability of equipment operation.

[0037] Mounting holes with internal threads are provided at the four corners of the bottom of the main body 3;

[0038] The internal threaded mounting holes at the four corners of the bottom of the main body 3 provide mounting positions for the vibration damper 5, ensuring that the vibration damper 5 is firmly connected to the main body 3. At the same time, the threaded connection method facilitates disassembly and maintenance.

[0039] The front parts of the liquid inlet pipe 43 and the liquid outlet pipe 44 both penetrate the main body 3 and extend to the outside of the main body 3. One side of the heat dissipation substrate 41 is attached to the inner winding of the main body 3.

[0040] The heat dissipation substrate 41 is directly attached to the winding, which can quickly conduct the heat generated by the winding to the heat dissipation substrate 41, and then carry it away through the coolant in the microchannel 42, reducing heat conduction loss; the inlet pipe 43 and the outlet pipe 44 extend to the outside of the main body 3, which facilitates connection to the external coolant circulation system to realize continuous supply and circulation heat dissipation of coolant.

[0041] The vibration damping component 5 includes a magnetorheological fluid tank 53 and a magnetorheological fluid stored in the magnetorheological fluid tank 53. The magnetorheological fluid tank 53 has through holes at the four corners of the top. An upper support base 51 is slidably connected in the through holes. A lower support base 54 is fixedly connected to the bottom of the magnetorheological fluid tank 53. Permanent magnets 52 are fixedly connected to the top and bottom of the magnetorheological fluid tank 53.

[0042] The magnetorheological fluid has the characteristic of adjusting its viscosity according to the change of magnetic field. The permanent magnet 52 forms a stable magnetic field, which keeps the magnetorheological fluid at a certain viscosity to achieve the vibration reduction effect. The upper support base 51 slides with the through hole of the magnetorheological fluid tank 53, which can convert the vibration transmitted by the main body 3 into the up and down movement of the piston 514. The vibration energy is consumed by the damping effect of the magnetorheological fluid. The lower support base 54 provides stable support for the vibration damping component 5.

[0043] The upper support base 51 includes a support frame 511 and internal threaded holes at the four corners of the bottom of the support frame 511. The internal threaded holes are connected to fixing bolts 512. The support frame 511 is provided with several connecting holes 513. Pistons 514 are fixedly connected at the four corners of the bottom of the support frame 511.

[0044] The support frame 511 is the core load-bearing component of the upper support base 51. The fixing bolt 512 connects the upper support base 51 to the main body 3 by engaging with the mounting hole at the bottom of the main body 3 through the internal thread hole. The connection hole 513 facilitates the adjustment of the connection position according to the installation requirements, improving adaptability. The bottom piston 514 can penetrate into the magnetorheological fluid tank 53 to transmit the vibration of the main body 3 to the magnetorheological fluid, and the vibration is buffered by the damping effect of the magnetorheological fluid.

[0045] Piston 514 is slidably connected to the top through hole of magnetorheological fluid tank 53, and the end of fixing bolt 512 is threadedly connected to the bottom mounting hole of body 3.

[0046] The sliding fit between piston 514 and through hole allows piston 514 to move up and down flexibly, ensuring that vibration energy can be effectively transmitted and consumed by magnetorheological fluid; the threaded connection between fixing bolt 512 and mounting hole of main body 3 ensures that upper support base 51 and main body 3 are tightly connected, avoiding relative displacement during vibration, and facilitating disassembly and maintenance, allowing quick separation of main body 3 and vibration damping component 5 for inspection.

[0047] The lower support base 54 includes a connecting block 541 fixedly connected to the bottom of the magnetorheological fluid tank 53 and a connecting frame 542 fixedly connected to the bottom of the connecting block 541. The four corners of the top of the connecting frame 542 are threaded with fixing bolts 544, and the connecting frame 542 is provided with several connecting holes 543.

[0048] The connecting block 541 securely connects the lower support base 54 to the magnetorheological fluid tank 53, and the connecting frame 542 provides bottom support for the vibration damping component 5 to ensure the overall structure is placed stably. The second fixing bolt 544 is used to connect with the external installation platform. The second connecting hole 543 facilitates fixing the lower support base 54 to the installation platform, improving the overall installation stability of the transformer and preventing displacement during operation.

[0049] Two connecting blocks 541 are provided, and the two connecting blocks 541 are respectively fixedly connected to the two sides of the bottom of the magnetorheological fluid tank 53;

[0050] The two symmetrically distributed connecting blocks 541 can make the bottom of the magnetorheological fluid tank 53 evenly stressed, avoid tilting or damage caused by unilateral stress, and enhance the stability and durability of the overall structure of the vibration damping component 5.

[0051] During use, the inlet pipe 43 and outlet pipe 44 are connected to the external coolant circulation system, and the circulation function is tested and found to be normal. After the transformer is started, the windings inside the main body 3 continuously generate heat during the energized operation. The heat dissipation substrate 41, which is in close contact with the windings, quickly conducts heat and absorbs the heat from the surface of the windings. The external low-temperature coolant is injected into the microchannels 42 of the heat dissipation substrate 41 through the inlet pipe 43. Through the flow of coolant in the microchannels 42, efficient heat exchange is achieved, and heat is quickly carried away. The coolant, after absorbing heat and heating up, is discharged to the external circulation system through the outlet pipe 44. After cooling treatment, it is injected back into the microchannels 42 to form a circulating heat dissipation. At the same time, it works in conjunction with the radiator 1 outside the main body 3 to dissipate heat synchronously, thus constructing a dual heat dissipation system to avoid local overheating that could lead to a decrease in insulation performance.

[0052] The vibration generated by the transformer operation is transmitted through the main body 3 to the support frame 511 of the upper support base 51. After the support frame 511 is subjected to force, it drives the pistons 514 at the four corners of the bottom to move up and down along the through hole at the top of the magnetorheological fluid tank 53. At this time, the magnetorheological fluid in the magnetorheological fluid tank 53 forms a damping force under the action of the stable magnetic field formed by the permanent magnet 52. When the piston 514 moves in the magnetorheological fluid, the damping force will effectively hinder the movement amplitude of the piston 514, and achieve a buffering effect. The upper support base 51, the magnetorheological fluid, and the lower support base 54 work together to gradually attenuate the vibration and ensure the stable operation of the equipment.

Claims

1. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction, comprising a main body (3) and a heat sink (1) fixedly connected to the main body (3), wherein a sleeve (2) is fixedly connected to the top of the main body (3), characterized in that: Heat dissipation components (4) are fixedly connected to both sides of the inner wall of the main body (3). The heat dissipation components (4) are used to dissipate heat from the windings inside the main body (3). The bottom of the main body (3) is fixedly connected with a vibration damping component (5), which is used to buffer the vibration generated during the operation of the main body (3); The heat dissipation component (4) includes a heat dissipation substrate (41) fixedly connected to the inner wall of the main body (3) and a microchannel (42) opened in the heat dissipation substrate (41). The heat dissipation substrate (41) is fixedly connected to an inlet pipe (43) and an outlet pipe (44). The inlet pipe (43) is used to input coolant into the microchannel (42), and the outlet pipe (44) is used to discharge the coolant after heat absorption in the microchannel (42).

2. The transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 1, characterized in that: The main body (3) has mounting holes with internal threads at the four corners of its bottom.

3. The transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 1, characterized in that: The front of the liquid inlet pipe (43) and the liquid outlet pipe (44) both penetrate the main body (3) and extend to the outside of the main body (3), and one side of the heat dissipation substrate (41) is attached to the inner winding of the main body (3).

4. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 1, characterized in that: The vibration damping component (5) includes a magnetorheological fluid tank (53) and a magnetorheological fluid stored in the magnetorheological fluid tank (53). The magnetorheological fluid tank (53) has through holes at the four corners of the top. An upper support base (51) is slidably connected in the through holes. A lower support base (54) is fixedly connected to the bottom of the magnetorheological fluid tank (53). Permanent magnets (52) are fixedly connected to the top and bottom of the magnetorheological fluid tank (53).

5. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 1, characterized in that: The upper support base (51) includes a support frame (511) and internal threaded holes at the four corners of the bottom of the support frame (511). The internal threaded holes are connected to a fixing bolt (512). The support frame (511) has several connecting holes (513). Pistons (514) are fixedly connected at the four corners of the bottom of the support frame (511).

6. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 5, characterized in that: The piston (514) is slidably connected to the top through hole of the magnetorheological fluid tank (53), and the end of the fixing bolt (512) is threadedly connected to the bottom mounting hole of the main body (3).

7. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 1, characterized in that: The lower support base (54) includes a connecting block (541) fixedly connected to the bottom of the magnetorheological fluid tank (53) and a connecting frame (542) fixedly connected to the bottom of the connecting block (541). The four corners of the top of the connecting frame (542) are threaded with fixing bolts (544), and the connecting frame (542) has several connecting holes (543).

8. A transformer based on microchannel heat dissipation and magnetorheological fluid vibration reduction according to claim 7, characterized in that: Two connecting blocks (541) are provided, and the two connecting blocks (541) are fixedly connected to the bottom sides of the magnetorheological fluid tank (53) respectively.

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