Multi-pulse phase-shifting rectifier transformer

Abstract

The invention discloses a multi-pulse phase-shifting rectifier transformer, which comprises a transformer mechanism and a metal cabinet, and is characterized in that the transformer mechanism is mounted in the metal cabinet; the surface of the transformer mechanism is sleeved with a heat dissipation mechanism, the left side and the right side of the heat dissipation mechanism are provided with installation mechanisms, one side of each installation mechanism is provided with a quick disassembly mechanism, and the quick disassembly mechanisms are installed in an inner cavity of the metal cabinet. The technical problems that when an existing multi-pulse-wave phase-shifting rectifier transformer is installed in a metal cabinet, liquid cooling is not convenient to conduct on the surface of a high-voltage winding on the outer side of the transformer, copper loss and iron loss of the high-voltage winding are increased along with temperature rise, and consequently the efficiency of the transformer is reduced, and the service life of the transformer is prolonged are solved. And accelerated aging of an insulating material on the surface of the high-voltage winding can be caused.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, in particular to a multi-pulse phase-shift rectifier transformer. Background Art

[0002] A multi-pulse phase-shifted rectifier transformer is a specially designed power transformer primarily used in high-power rectifier systems. Its phase-shifting technology and multi-pulse rectifier structure significantly reduce harmonic pollution and improve power quality. It is primarily used in industrial electrolysis, rail transit, high-voltage DC transmission, and data center power supplies. While the multi-pulse rectifier system reduces harmonics, high-frequency residual harmonics may still radiate and interfere with surrounding equipment. Therefore, the multi-pulse phase-shifted rectifier transformer must be installed in a grounded metal cabinet to form a Faraday cage, attenuating electromagnetic interference to 30-50dB to meet electromagnetic shielding requirements.

[0003] Chinese Patent Publication No. CN117790140B describes a 110kV direct-step-down multi-pulse phase-shift rectifier transformer. The transformer comprises a housing, a coil assembly, a solid insulation assembly, and liquid insulation. The housing houses three core legs. The coil assembly includes a low-voltage coil assembly and a high-voltage winding assembly, with the low-voltage coil assembly wound around the outside of the core legs, and the high-voltage winding assembly wound around the low-voltage coil assembly. The solid insulation assembly includes a low-voltage side insulation assembly, an insulation paper tube assembly, and a high-voltage side insulation assembly. The low-voltage side insulation assembly includes a low-voltage upper insulation assembly and a low-voltage lower insulation assembly, and the insulation paper tube assembly is sleeved around the low-voltage coil assembly. The high-voltage side insulation assembly includes a high-voltage upper insulation assembly and a high-voltage lower insulation assembly. This multi-pulse phase-shift rectifier transformer transforms voltage using the low-voltage coil assembly and the high-voltage winding assembly, but it fails to shield the electromagnetic radiation generated by the multi-pulse rectification system.

[0004] When existing multi-pulse phase-shift rectifier transformers are installed inside metal cabinets, it is difficult to liquid-cool the high-voltage winding surface on the outside of the transformer. As the temperature rises, the copper and iron losses of the high-voltage winding increase, resulting in a decrease in transformer efficiency and accelerated aging of the insulation material on the high-voltage winding surface. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that, when existing multi-pulse phase-shift rectifier transformers are installed inside a metal cabinet, it is not convenient to liquid-cool the high-voltage winding surface on the outside of the transformer. As the temperature rises, the copper and iron losses of the high-voltage winding increase, resulting in a decrease in transformer efficiency and accelerated aging of the insulation material on the high-voltage winding surface.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a multi-pulse phase-shift rectifier transformer, comprising a transformer mechanism and a metal cabinet, wherein the transformer mechanism is installed inside the metal cabinet; A heat dissipation mechanism is sleeved on the surface of the transformer mechanism. Mounting mechanisms are installed on the left and right sides of the heat dissipation mechanism. A quick-release mechanism is installed on one side of the mounting mechanism. The quick-release mechanism is installed in the inner cavity of the metal cabinet.

[0007] As a preferred embodiment of the multi-pulse phase-shift rectifier transformer of the present invention, the transformer structure includes a transformer body, on which a low-voltage winding and a high-voltage winding are mounted, the low-voltage winding being located inside the high-voltage winding, and a connection terminal electrically connected to the low-voltage winding and the high-voltage winding being mounted on the top of the transformer body.

[0008] As a preferred embodiment of the multi-pulse phase-shift rectifier transformer of the present invention, cooling channels are provided on the surface of the low-voltage winding and the inner wall of the high-voltage winding, and cooling fans for use with the cooling channels are installed at the bottoms of the front and rear sides of the transformer body.

[0009] As a preferred solution of the multi-pulse phase-shift rectifier transformer of the present invention, a movable frame is fixedly connected to the bottom of the transformer body, and a brake universal wheel is installed at the bottom of the movable frame.

[0010] As a preferred embodiment of the multi-pulse phase-shifting rectifier transformer of the present invention, the heat dissipation mechanism includes an arc-shaped liquid cooling jacket, the number of which matches the number of high-voltage windings, the arc-shaped liquid cooling jackets being attached to the front and rear sides of the high-voltage windings, and the surface of the arc-shaped liquid cooling jackets being mounted with multiple arc-shaped strips, the left and right ends of which are fixed with mounting plates via bolts and nuts, and one end of the mounting plate being fixedly connected to a rotating seat.

[0011] As a preferred embodiment of the multi-pulse phase-shifting rectifier transformer of the present invention, the top and bottom of the arc-shaped liquid cooling jacket are connected by connecting pipes, the connecting pipes are connected to a liquid pump, the upper and lower sides of the radiator surface are fixedly connected to radiators, and the radiators are located on the upper and lower sides of the multi-section arc strips and are movably connected thereto.

[0012] As a preferred solution of the multi-pulse phase-shift rectifier transformer of the present invention, the inner cavity of the arc-shaped liquid cooling jacket is provided with a cooling liquid flow cavity, the inner cavity of the cooling liquid flow cavity is installed with a plurality of partitions, and the partitions are provided with through holes.

[0013] As a preferred embodiment of the multi-pulse phase-shifting rectifier transformer of the present invention, the mounting mechanism includes a frame, shock absorbers are fixedly mounted on the top and bottom of the inner wall of the frame, shock-absorbing springs are sleeved on the surface of the shock absorbers, and a movable seat is fixedly connected to the opposite end of the shock absorber. A rotating rod is rotatably connected to the interior of the movable seat, and the rotating rod is movably sleeved on the front and rear ends of the rotating seat.

[0014] As a preferred solution of the multi-pulse phase-shift rectifier transformer of the present invention, wherein: a first plug hole is provided on the frame, and a limit block is provided on the inner wall of the frame.

[0015] As a preferred embodiment of the multi-pulse phase-shifting rectifier transformer of the present invention, the quick-release mechanism includes a base, the bottom of which is fixedly mounted on the bottom of the inner cavity of the metal cabinet, the bottom of the brake universal wheel is movably connected to the inner wall of the base, and ventilation windows and locks are fixedly mounted on the left and right sides of the base.

[0016] Beneficial effects of the present invention: The present invention uses a liquid pump to pump low-temperature coolant into the coolant flow cavity of the arc-shaped liquid cooling jacket through a connecting pipe. The coolant flows in the serpentine channel, evenly absorbs the heat of the high-voltage winding, and the high-temperature liquid returns to the outside. At the same time, the radiator also absorbs heat from the coolant inside the coolant flow cavity, and the absorbed heat is dissipated into the air, assisting the arc-shaped liquid cooling jacket in cooling. The cooling fan starts and stops according to the temperature sensor signal, forcing airflow through the cooling channel to dissipate heat to the low-voltage winding and the high-voltage winding, thereby enhancing the heat dissipation efficiency.

[0017] The arc-shaped liquid cooling jacket of the present invention fits the curved surface of the high-voltage winding, and thermal grease is used to fill the gap to ensure heat conduction. Bolts are tightened to tighten the multi-section arc strips to fix several arc-shaped liquid cooling jackets. A coolant flow cavity is opened in the arc-shaped liquid cooling jacket. The coolant circulates and removes heat at the same time, avoiding local temperature rise and uneven material expansion. The fin structure of the radiator not only increases the heat dissipation area, but also serves as an extended support point of the heat dissipation mechanism to disperse the mechanical load. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 A schematic diagram of a transformer mechanism of the present invention; Figure 4 Schematic diagram of the heat dissipation mechanism of the present invention Figure 1 ; Figure 5 Schematic diagram of the heat dissipation mechanism of the present invention Figure 2 ; Figure 6 A cross-sectional view of the arc-shaped liquid cooling jacket of the present invention; Figure 7 Schematic diagram of the installation mechanism of the present invention Figure 1 ; Figure 8 Schematic diagram of the installation mechanism of the present invention Figure 2 ; Figure 9This is a schematic diagram of the quick release mechanism of the present invention; Figure 10 It is an exploded view of the lock of the present invention.

[0019] In the figure: 100, transformer mechanism; 200, metal cabinet; 300, heat dissipation mechanism; 400, mounting mechanism; 500, quick release mechanism; 101, transformer body; 102, terminal block; 103, cooling fan; 104, universal brake wheel; 105, mobile frame; 106, high-voltage winding; 107, cooling channel; 108, low-voltage winding; 301, curved liquid cooling jacket; 302, connecting pipe; 303, liquid pump; 304, rotating seat; 305, mounting plate; 3 ...307, cooling channel; 308, low-voltage winding; 309, high-voltage winding; 310, high-voltage winding; 311, high-voltage winding; 312, high-voltage winding; 313, high-voltage winding; 314, high-voltage winding; 315, high-voltage winding; 316, high-voltage winding; 317, high-voltage winding; 318, high-voltage winding; 319, high-voltage winding; 320, high-voltage winding; 321, high-voltage winding; 322, high-voltage winding; 323, high-voltage winding; 324, high-voltage winding; 325, high-voltage winding; 326, high-voltage winding; 327, high-voltage winding; 328, high-voltage winding; 329, high-voltage winding; 330, high-voltage winding; 331, high-voltage winding; 332, high-voltage winding; 333, high-voltage winding; 33 6. Multi-section arc strip; 307. Radiator; 308. Coolant flow chamber; 309. Partition; 310. Through hole; 401. Frame; 402. Limit block; 403. First plug hole; 404. Turn rod; 405. Movable seat; 406. Shock-absorbing spring; 407. Shock absorber; 501. Seat; 502. Ventilation window; 503. Lock; 504. Limit spring; 505. Ratchet; 506. Ratchet; 507. Turn handle; 508. Insert rod; 509. Fixing claw. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] like Figures 1-10 As shown, this embodiment provides a multi-pulse phase-shift rectifier transformer, including a transformer mechanism 100 and a metal cabinet 200 . The transformer mechanism 100 is installed inside the metal cabinet 200 .

[0022] Furthermore, a heat dissipation mechanism 300 is sleeved on the surface of the transformer mechanism 100 , mounting mechanisms 400 are mounted on the left and right sides of the heat dissipation mechanism 300 , a quick release mechanism 500 is mounted on one side of the mounting mechanism 400 , and the quick release mechanism 500 is mounted in the inner cavity of the metal cabinet 200 .

[0023] Furthermore, the transformer mechanism 100 includes a transformer body 101, on which a low-voltage winding 108 and a high-voltage winding 106 are installed. The low-voltage winding 108 is located inside the high-voltage winding 106, and a terminal 102 electrically connected to the low-voltage winding 108 and the high-voltage winding 106 is installed on the top of the transformer body 101.

[0024] Furthermore, cooling channels 107 are provided on the surface of the low-voltage winding 108 and the inner wall of the high-voltage winding 106 , and cooling fans 103 for use with the cooling channels 107 are installed at the bottom of the front and rear sides of the transformer body 101 .

[0025] Furthermore, a movable frame 105 is fixedly connected to the bottom of the transformer body 101 , and a brake universal wheel 104 is installed at the bottom of the movable frame 105 .

[0026] Furthermore, temperature sensors are installed on the high-voltage winding 106 and the low-voltage winding 108, and the output ends of the temperature sensors are electrically connected to a controller. The controller controls the cooling fan 103 and the liquid pump 303 according to the detection signal and the preset temperature. When the temperature is too high, the cooling efficiency is improved, and when the temperature is too low, the cooling efficiency is reduced or the cooling is stopped.

[0027] Furthermore, the metal cabinet 200 is grounded through an electric wire. Removable inspection doors are provided on the left and right sides of the metal cabinet 200. Air inlets are provided on the inspection doors. Air outlets are provided on the top and bottom of the metal cabinet 200. Filters are installed inside the air inlet and outlet.

[0028] Furthermore, the heat dissipation mechanism 300 includes an arc-shaped liquid cooling jacket 301. The number of the arc-shaped liquid cooling jackets 301 is adapted to the number of the high-voltage windings 106. The arc-shaped liquid cooling jackets 301 are attached to the front and rear sides of the high-voltage windings 106. A plurality of arc-shaped strips 306 are installed on the surface of the arc-shaped liquid cooling jacket 301. The left and right ends of the plurality of arc-shaped strips 306 are fixed with mounting plates 305 by bolts and nuts. One end of the mounting plate 305 is fixedly connected to a rotating seat 304.

[0029] Furthermore, the top and bottom of the arc-shaped liquid cooling jacket 301 are connected with a connecting pipe 302, and the connecting pipe 302 is connected with a liquid pump 303. The upper and lower sides of the surface of the radiator 307 are fixedly connected with the radiator 307. The radiator 307 is located on the upper and lower sides of the multi-section arc strip 306 and is movably connected to it.

[0030] Furthermore, a cooling liquid flow cavity 308 is defined in the inner cavity of the arc-shaped liquid cooling jacket 301 . A plurality of partitions 309 are installed in the inner cavity of the cooling liquid flow cavity 308 . Through holes 310 are defined in the partitions 309 .

[0031] Furthermore, the liquid pump 303 is connected to the coolant circulation device through a hose, and the coolant circulation device cools the coolant through a semiconductor refrigerator. The low-temperature coolant circulates inside the arc-shaped liquid cooling jacket 301 through the liquid pump 303 and the connecting pipe 302, and the high-temperature coolant flows back to the coolant circulation device for cooling.

[0032] Furthermore, the arc-shaped liquid cooling jacket 301 and the radiator 307 are made of silicon carbide or ceramics, and a plurality of cooling fins are provided on the outside of the radiator 307 .

[0033] Furthermore, the connection between the arc-shaped liquid cooling jacket 301 and the high-voltage winding 106 is coated with thermally conductive insulating silicone grease.

[0034] Silicon carbide, ceramics and thermally conductive insulating silicone grease are all insulating materials and are disposed on the surface of the high-voltage winding 106 , which will not cause leakage of the high-voltage winding 106 .

[0035] Furthermore, the connecting pipe 302 is connected to the inner cavity of the cooling liquid flow cavity 308 and connects a plurality of arc-shaped liquid cooling jackets 301 in series, so that the cooling liquid flows through the arc-shaped liquid cooling jackets 301 in sequence.

[0036] Furthermore, the partition 309 separates the interior of the coolant flow chamber 308, reduces the flow rate of the coolant, and allows the coolant to contact the arc-shaped liquid cooling jacket 301 evenly. The through holes 310 are distributed on several partitions 309 at intervals above and below, so that the coolant flows in a serpentine shape when flowing inside the coolant flow chamber 308.

[0037] Furthermore, the mounting mechanism 400 includes a frame 401, and shock absorbers 407 are fixedly installed on the top and bottom of the inner wall of the frame 401. A shock-absorbing spring 406 is sleeved on the surface of the shock absorber 407. A movable seat 405 is fixedly connected to the opposite end of the shock absorber 407. The movable seat 405 is internally rotatably connected to a rotating rod 404, and the rotating rod 404 is movably sleeved on the front and rear ends of the rotating seat 304.

[0038] Furthermore, a first insertion hole 403 is provided on the frame 401 , and a limit block 402 is provided on the inner wall of the frame 401 .

[0039] The frame 401 is installed on the left and right sides of the inner wall of the base 501, wherein the rotating rod 404 is connected to the rotating base 304. This step allows for a small angle adjustment to adapt to errors that may occur during the installation process. By rotating the handle 507, the insertion rod 508 is rotated inside the first hole 403, and the fixing claw 509 is driven from a vertical state to a horizontal state to fix the position of the frame 401. The limit block 402 is used to prevent the fixing claw 509 from excessive rotation to ensure stability and safety. When locking is required, the insertion rod 508 rotates to drive the ratchet 506 to rotate, and the ratchet 506 drives the pawl 505 to jump. Finally, the limit spring 504 provides reverse resistance to ensure the stability of the locked state. When unlocking is required, the pawl 505 needs to be turned upward to release the restriction on the ratchet 506, and then the handle 507 can be reversed to complete the unlocking process. The shock absorber 407 and the shock-absorbing spring 406 in the installation mechanism 400 can absorb vibrations and protect internal components from damage, while increasing the overall stability of the system. The design of the quick-release mechanism 500 simplifies the installation and disassembly process of the transformer and its related components, greatly facilitating the maintenance and component replacement of the equipment. Through the coordinated use of the rotating rod 404 and the movable seat 405, the entire system can adjust the angle within a certain range, so as to better adapt to various conditions in the actual installation environment. The installation mechanism 400 not only optimizes the installation process of the transformer and improves the safety and stability of the equipment operation, but also significantly improves the heat dissipation performance and maintenance convenience of the equipment.

[0040] Furthermore, the quick-release mechanism 500 includes a base 501, the bottom of the base 501 is fixedly installed on the bottom of the inner cavity of the metal cabinet 200, the bottom of the brake universal wheel 104 is movably connected to the inner wall of the base 501, and ventilation windows 502 and locks 503 are fixedly installed on the left and right sides of the base 501.

[0041] Furthermore, the lock 503 is internally rotatably connected to an insertion rod 508, one end of which passes through the seat body 501 and the first insertion hole 403 and extends to the inside of the frame body 401, and a fixing claw 509 is fixedly connected to the surface of the insertion rod 508, and the fixing claw 509 is movably connected to the inner wall of the frame body 401 to fix it, and the surface of the fixing claw 509 is movably connected to the limit block 402, and the limit block 402 limits the fixing claw 509 to prevent it from loosening.

[0042] Furthermore, the other end of the insertion rod 508 extends to the outside of the lock 503 and is fixedly connected to the turning handle 507. A ratchet 506 is fixedly sleeved on the surface of the insertion rod 508, and a pawl 505 is engaged on the surface of the ratchet 506. The pawl 505 is rotatably connected to the inner wall of the lock 503. A limiting spring 504 is installed on the top of the pawl 505, and the limiting spring 504 is installed on the top of the inner wall of the lock 503. An unlocking handle is provided on one side of the pawl 505, and the unlocking handle extends to the outside of the lock 503.

[0043] When installing the transformer mechanism 100, the transformer body 101 is pushed into the quick-release mechanism 500 and the metal cabinet 200 through the brake universal wheel 104, and the brake universal wheel 104 is locked after adjusting to the preset position. The arc-shaped liquid cooling jacket 301 fits the front and rear sides of the high-voltage winding 106, and the multi-section arc strip 306 and the mounting plate 305 are installed by bolts and nuts to fix the arc-shaped liquid cooling jacket 301 so that it fits the surface of the high-voltage winding 106. The frame 401 is installed on the left and right sides of the inner wall of the base body 501, and the rotating rod 404 is connected to the rotating base 304. The cooperation of the rotating rod 404 and the movable base 405 allows a small angle adjustment to adapt to the installation error. After the installation is completed, the plug rod 508 is rotated by the turning handle 507, and the plug rod 508 is inserted into the first hole 40 3 rotates internally, and drives the fixed claw 509 to rotate, so that it is converted from a vertical state to a horizontal state. The fixed claw 509 is stuck on the inner wall of the frame 401 to fix it, and the limit block 402 limits the fixed claw 509 to prevent it from excessive rotation. During the rotation of the insertion rod 508, it drives the ratchet 506 to rotate, and the ratchet 506 drives the pawl 505 to jump. When the fixation is completed, the limit spring 504 drives the pawl 505 to be stuck on the ratchet 506. The limit spring 504 provides reverse resistance to ensure that the locking state is stable and prevent the insertion rod 508 and the fixed claw 509 from rotating. When disassembly is required, the pawl 505 is rotated upward, and the pawl 505 compresses the limit spring 504 to contact the limit of the ratchet 506. The user reverses the handle 507, the insertion rod 508 and the fixed claw 509.

[0044] During heat dissipation and cooling, the liquid pump 303 pumps low-temperature coolant into the coolant flow cavity 308 of the arc-shaped liquid cooling jacket 301 through the connecting pipe 302. The coolant flows in the serpentine channel, evenly absorbing the heat of the high-voltage winding 106, and the high-temperature liquid returns to the outside. At the same time, the radiator 307 also absorbs heat from the coolant inside the coolant flow cavity 308, and the absorbed heat is dissipated into the air, assisting the arc-shaped liquid cooling jacket 301 in cooling. The cooling fan 103 starts and stops according to the temperature sensor signal, forcing airflow through the cooling channel 107 to dissipate heat from the low-voltage winding 108 and the high-voltage winding 106, thereby enhancing heat dissipation efficiency.

[0045] The curved liquid cooling jacket 301 fits the curved surface of the high-voltage winding 106, and thermal grease is used to fill the gaps to ensure heat conduction. Bolts tighten the multi-section curved strips 306. A coolant flow cavity 308 is opened in the curved liquid cooling jacket 301. The coolant circulates and removes heat at the same time, avoiding local temperature rise and uneven material expansion. The fin structure of the radiator 307 not only increases the heat dissipation area, but also serves as an extended support point for the heat dissipation mechanism 300, dispersing the mechanical load.

Claims

1. A multi-pulse phase-shift rectifier transformer, comprising a transformer mechanism (100) and a metal cabinet (200), characterized in that: The transformer mechanism (100) is installed inside the metal cabinet (200); A heat dissipation mechanism (300) is sleeved on the surface of the transformer mechanism (100), mounting mechanisms (400) are mounted on the left and right sides of the heat dissipation mechanism (300), a quick-release mechanism (500) is mounted on one side of the mounting mechanism (400), and the quick-release mechanism (500) is mounted in the inner cavity of the metal cabinet (200).

2. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The transformer mechanism (100) comprises a transformer body (101), a low-voltage winding (108) and a high-voltage winding (106) are mounted on the transformer body (101), the low-voltage winding (108) is located inside the high-voltage winding (106), and a connection terminal (102) electrically connected to the low-voltage winding (108) and the high-voltage winding (106) is mounted on the top of the transformer body (101).

3. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: A cooling channel (107) is provided on the surface of the low-voltage winding (108) and the inner wall of the high-voltage winding (106), and a heat dissipation fan (103) used in conjunction with the cooling channel (107) is installed at the bottom of the front and rear sides of the transformer body (101).

4. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: A movable frame (105) is fixedly connected to the bottom of the transformer body (101), and a brake universal wheel (104) is installed at the bottom of the movable frame (105).

5. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The heat dissipation mechanism (300) comprises an arc-shaped liquid cooling jacket (301), the number of the arc-shaped liquid cooling jackets (301) being adapted to the number of the high-voltage windings (106), the arc-shaped liquid cooling jackets (301) being fitted to the front and rear sides of the high-voltage windings (106), a multi-section arc-shaped strip (306) being mounted on the surface of the arc-shaped liquid cooling jacket (301), the left and right ends of the multi-section arc-shaped strip (306) being fixed with a mounting plate (305) by means of bolts and nuts, and one end of the mounting plate (305) being fixedly connected to a rotating seat (304).

6. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The top and bottom of the arc-shaped liquid cooling jacket (301) are connected to a connecting pipe (302), and the connecting pipe (302) is connected to a liquid pump (303). The upper and lower sides of the surface of the radiator (307) are fixedly connected to the radiator (307), and the radiator (307) is located on the upper and lower sides of the multi-section arc strip (306) and is movably connected thereto.

7. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The inner cavity of the arc-shaped liquid cooling jacket (301) is provided with a cooling liquid flow cavity (308), and the inner cavity of the cooling liquid flow cavity (308) is provided with a plurality of partitions (309), and the partitions (309) are provided with through holes (310).

8. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The mounting mechanism (400) comprises a frame (401), wherein shock absorbers (407) are fixedly mounted on the top and bottom of the inner wall of the frame (401), a shock absorbing spring (406) is sleeved on the surface of the shock absorber (407), an opposite end of the shock absorber (407) is fixedly connected to a movable seat (405), and a rotating rod (404) is rotatably connected inside the movable seat (405), and the rotating rod (404) is movably sleeved on the front and rear ends of the rotating seat (304).

9. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: A first insertion hole (403) is provided on the frame (401), and a limiting block (402) is provided on the inner wall of the frame (401).

10. The multi-pulse phase-shift rectifier transformer according to claim 1, wherein: The quick-release mechanism (500) includes a base (501), the bottom of the base (501) is fixedly mounted on the bottom of the inner cavity of the metal cabinet (200), the bottom of the brake universal wheel (104) is movably connected to the inner wall of the base (501), and ventilation windows (502) and lockers (503) are fixedly mounted on the left and right sides of the base (501).

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