Amorphous alloy oil-immersed three-dimensional wound core transformer
By setting the bearing support assembly and the casing assembly on the outside of the oil pipe, the poor stability and oil leakage of the three-dimensional coil core transformer windings are solved, and more stable oil pipe connections and higher short-circuit resistance are achieved.
Patent Information
- Application Number
- CN202210910344.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2042-07-29
AI Technical Summary
The existing three-dimensional coil core transformers have poor winding stability, are prone to oil leakage, and have poor short-circuit resistance.
Amorphous alloy oil-immersed three-dimensional coil core transformer is designed to ensure the winding by providing bearing support components on the outside of the winding and sleeve components on the outside of the oil pipe. Stable connection with the oil pipe prevents oil leakage and improves the installation safety of the oil purifier through a reinforcement mechanism.
It improves the stability of the winding, prevents oil leakage, enhances the connection stability between the oil pipe and the oil purifier, and ensures the short-circuit resistance and safety of the transformer.
Smart Images
Figure CN115240963B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of transformers, and in particular to an amorphous alloy oil-immersed three-dimensional wound core transformer. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Therefore, transformers are widely used in the field of electricity. The China Patent Network has disclosed a patent number: CN202021268274.6, which is a three-dimensional wound core transformer that is easy to dissipate heat. By setting a transformer body, a base, a fan, a positioning rod, a limit rod, a limit hole, a card block, a card slot, a sliding sleeve, a sliding rod, a fixed block, a shell, a fixing mechanism, a fixed rod, a movable rod, a support block, a spring, a fixed hole, a movable hole, a through hole and a fixed slot, the existing three-dimensional wound core transformer heat dissipation fan and the three-dimensional wound core transformer are mostly fixed with screws, which will waste a lot of time and energy of the user during installation, which is inconvenient Problems faced by users: the three-dimensional wound core transformer, which is easy to dissipate heat, has the advantage of being easy to install a heat dissipation fan. The above patent improves the heat dissipation effect of the transformer by designing a heat dissipation component; we know that the winding of the three-dimensional wound core transformer is circular. Under normal circumstances, the low-voltage winding of the three-dimensional wound core transformer is wound with multiple electromagnetic wires. The spiral angles at both ends are large. The axial force exerted on the low-voltage winding under the transverse leakage magnetic field is large, which makes the axial stability of the winding poor, and its anti-short-circuit effect cannot reach the ideal state. The above patent does not deal with the stability of the winding; and the current transformer oil purifier connection stability is relatively poor, and oil leakage is easily caused at the connection. Therefore, it is urgently necessary to propose an amorphous alloy oil-immersed three-dimensional wound core transformer. Summary of the invention
[0003] The purpose of the present invention is to solve the problems existing in the background technology and to provide an amorphous alloy oil-immersed three-dimensional wound core transformer.
[0004] The technical solution of the present invention is as follows: an amorphous alloy oil-immersed three-dimensional wound core transformer, comprising a base, a transformer body is installed on the upper end of the base through a heat sink, an oil purifier is arranged on one side of the transformer body, a radiator is arranged on the other side of the transformer body, a high-voltage bushing and a low-voltage bushing are penetrated on the upper end of the transformer body, and it is characterized in that it also comprises an iron core vertically arranged inside the transformer body and a winding arranged on the outside of the iron core, a bearing support assembly is arranged on the outside of the winding, the bearing support assembly comprises a plurality of U-shaped support plates sleeved on the outside of the winding, and a plurality of heat dissipation holes are opened on the side of the U-shaped support plate; the oil purifier is connected to the transformer body through two oil pipes, the outer sides of the two oil pipes are sleeved with a sleeve assembly, the inner side of the oil pipe is connected with a transfer pipe, the outer side of the transfer pipe is sleeved with a radiator, the sleeve assembly comprises a sliding sleeve rod and a positioning ring sleeved on the outer side of the oil pipe, and rectangular blocks are connected at both ends of the positioning ring, and a reinforcement mechanism is arranged on the outer side of the lower end of the oil purifier.
[0005] Preferably, a groove is provided on the outer side of the rectangular block, the upper end of the heat sink is recessed and rotatably connected to a bidirectional control screw, the bidirectional control screw is sleeved with two sliding sleeves, the upper ends of the two sliding sleeves are connected to positioning rods, and the positioning rods are provided in corresponding grooves.
[0006] Preferably, the outer side of the oil pipe is sleeved with a push ring located at the outer end of the sliding sleeve rod, and the outer diameter of the positioning ring is larger than the inner diameter of the push ring.
[0007] Preferably, the reinforcement mechanism includes fixed plates fixedly connected to both sides of the lower end of the oil purifier, the outer surfaces of the two fixed plates are provided with locking grooves, the ends of the two sliding sleeves away from each other are connected to sliders, the upper ends of the two sliders are connected to L-shaped connecting rods, the upper end of the heat dissipation plate is slidably connected to movable plates located on one side of the two fixed plates respectively, and the movable plate is fixedly connected to the L-shaped connecting rod.
[0008] Preferably, the surfaces of the two movable plates close to each other are connected with locking rods, the two locking rods and the two locking grooves are located in the same horizontal plane, and the bottom end of the oil purifier is fixed to the heat sink by bolts.
[0009] Preferably, the lower end of the oil pipe is connected with an orientation bar, the inner wall of the lower end of the positioning ring is provided with a groove, and the orientation bar is slidably connected in the groove.
[0010] Preferably, a rectangular groove is opened at the upper end of the heat dissipation plate, the two-way control screw is rotatably connected in the rectangular groove, and one end of the two-way control screw passes through the side of the heat dissipation plate and is fixedly connected with a round block.
[0011] Preferably, two adjacent U-shaped support plates are connected via an arc-shaped connecting block, and the inner arc surfaces of a plurality of the U-shaped support plates form a circular structure.
[0012] Preferably, the outer arc surface of each U-shaped support plate is fixedly connected with a side wing block, and the side wing block is penetrated by a positioning bolt inserted into the inner wall of the bottom end of the transformer body, so that the U-shaped support plate is better balanced.
[0013] Compared with the prior art, the present invention has the following beneficial technical effects:
[0014] (i) By arranging a sleeve assembly on the outside of the two oil pipes, the positioning ring can fix the sliding sleeve rod. Rectangular blocks are connected on both sides of the positioning ring. Positioning rods are clamped in the two grooves, thereby fixing the positioning ring. The state of the positioning ring is stable, so that the sliding sleeve rod and the oil pipe have a stable connection state. There will be no oil leakage in long-term use, and the two oil pipes can be easily disassembled, so that the oil pipes and the oil purifier can be cleaned or replaced, thereby improving the filtering effect;
[0015] (ii) By arranging a bearing support assembly on the outside of the winding, the bearing support assembly includes a plurality of U-shaped support plates, which are sleeved together on the outside of the winding to support the winding. Because the axial force on the low-voltage winding is relatively large under the transverse leakage magnetic field, such a design can ensure the stability of the winding and make the transformer's anti-short-circuit effect reach an ideal state;
[0016] (iii) By setting a reinforcement mechanism on the outer side of the lower end of the oil purifier, the bottom end of the oil purifier can be locked while the bushing assembly is locked, so that the oil purifier will not be easily loosened during installation, thereby improving the safety of transformer use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a stereogram of an amorphous alloy oil-immersed three-dimensional wound core transformer;
[0018] Figure 2 yes Figure 1 A partial cross-sectional view of the transformer body;
[0019] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle bearing support assembly;
[0020] Figure 4 yes Figure 1 Schematic diagram of the structure of the oil purifier;
[0021] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at point A;
[0022] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure at B.
[0023] Figure numerals: 1, base; 2, heat sink; 3, transformer body; 4, oil purifier; 5, high-voltage bushing; 6, low-voltage bushing; 8, two-way control screw; 9, oil pipe; 10, winding; 11, oil drain pipe; 12, core; 13, bearing support assembly; 1301, U-shaped support plate; 1302, heat dissipation hole; 1303, arc-shaped connecting block; 14, wing block; 15, positioning bolt; 16, bushing assembly; 1601, sliding sleeve rod; 1602, push ring; 1603, positioning ring; 1604, rectangular block; 1605, groove; 17, reinforcement mechanism; 1701, fixed plate; 1702, slider; 1703, L-shaped connecting rod; 1704, movable plate; 18, positioning rod; 19, sliding sleeve block; 20, transfer tube; 21, radiator. DETAILED DESCRIPTION
[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Embodiment 1
[0025] like Figure 1-6As shown, an amorphous alloy oil-immersed three-dimensional wound core transformer proposed by the present invention comprises a base 1, a transformer body 3 is mounted on the upper end of the base 1 through a heat sink 2, an oil drain pipe 11 is arranged on one side of the transformer body 3, an oil drain valve is arranged on the oil drain pipe 11, an oil purifier 4 is arranged on one side of the transformer body 3, a radiator 21 is arranged on the other side of the transformer body 3, a high-voltage bushing 5 and a low-voltage bushing 6 are penetrated on the upper end of the transformer body 3, and the transformer body 3 is characterized in that it also comprises an iron core 12 vertically arranged inside the transformer body 3 and a winding 10 arranged outside the iron core 12, a bearing support assembly 13 is arranged on the outside of the winding 10, and the bearing support assembly 13 includes a plurality of U-shaped bushings sleeved on the outside of the winding 10. The U-shaped support plate 1301 is provided with a plurality of heat dissipation holes 1302 on the side of the U-shaped support plate 1301. Two adjacent U-shaped support plates 1301 are connected by an arc-shaped connecting block 1303. The inner arc surfaces of the plurality of U-shaped support plates 1301 form a circular structure. The plurality of U-shaped support plates 1301 are jointly sleeved on the outer side of the winding 10, which can play a supporting, guiding and positioning role for both ends of the winding 10. Under the transverse leakage magnetic field, the axial force on the low-voltage winding is relatively large. Such a design can ensure the stability of the winding 10. The outer arc surface of each U-shaped support plate 1301 is fixedly connected to a side wing block 14, and a positioning bolt 15 inserted into the inner wall of the bottom end of the transformer body 3 is penetrated in the side wing block 14, so that the U-shaped support plate 1 The balance of 301 is better; the oil purifier 4 is connected to the transformer body 3 through two oil pipes 9, the outer sides of the two oil pipes 9 are sleeved with a sleeve assembly 16, the inner side of the oil pipe 9 is connected with a transfer pipe 20, the outer side of the transfer pipe 20 is sleeved with a radiator 21, the sleeve assembly 16 includes a sliding sleeve rod 1601 and a positioning ring 1603 sleeved on the outer side of the oil pipe 9, both ends of the positioning ring 1603 are connected with a rectangular block 1604, the outer side of the rectangular block 1604 is provided with a groove 1605, the upper end of the heat sink 2 is recessed and rotatably connected with a two-way control screw 8, the upper end of the heat sink 2 is provided with a rectangular groove, the two-way control screw 8 is rotatably connected in the rectangular groove, and one end of the two-way control screw 8 passes through the side of the heat sink 2 A round block is fixedly connected; the two-way control screw 8 is sleeved with two sliding sleeve blocks 19, and the upper ends of the two sliding sleeve blocks 19 are connected with positioning rods 18, and the positioning rods 18 are provided in the corresponding grooves 1605; the outer side of the oil pipe 9 is sleeved with a push ring 1602 located at the outer end of the sliding sleeve rod 1601, and the outer diameter of the positioning ring 1603 is larger than the inner diameter of the push ring 1602, and the positioning ring 1603 plays a positioning role for the push ring 1602, so that the sliding sleeve rod 1601 plays a role of resisting the radiator 21, making the connection of the transfer tube 20 more compact, and there will be no oil leakage; the lower end of the oil pipe 9 is connected with an orientation bar, and the inner wall of the lower end of the positioning ring 1603 is provided with a groove, and the orientation bar is slidably connected in the groove.
[0026] In this embodiment, by arranging the sleeve assembly 16 on the outside of the two oil pipes 9, the positioning ring 1603 can fix the sliding sleeve rod 1601, and the rectangular blocks 1604 are connected on both sides of the positioning ring 1603. Positioning rods 18 are clamped in the two grooves 1605, so as to fix the positioning ring 1603. The state of the positioning ring 1603 is stable, so that the sliding sleeve rod 1601 and the oil pipe 9 are in a stable connection state, and there will be no oil leakage under long-term use, and it is convenient to disassemble the two oil pipes 9. When disassembling, the two-way control screw 8 is rotated, and the two-way control screw 8 rotates to drive the two sliding sleeve blocks 19 to move away, and the two sliding sleeve blocks 19 moves away from the two positioning rods 18 to move away from the two grooves 1605. The next step is to remove the oil purifier 4 and then remove the two oil pipes 9. The oil pipes 9 and the oil purifier 4 can be cleaned or replaced to improve the filtering effect. By setting a bearing support assembly 13 on the outside of the winding 10, the bearing support assembly 13 includes a plurality of U-shaped support plates 1301, and the plurality of U-shaped support plates 1301 are jointly sleeved on the outside of the winding 10, which can support the winding 10. Because the axial force on the low-voltage winding is relatively large under the transverse leakage magnetic field, this design can ensure the stability of the winding 10 and make the transformer's anti-short circuit effect reach an ideal state. Embodiment 2
[0027] like Figure 1 and Figure 5As shown, an amorphous alloy oil-immersed three-dimensional wound core transformer proposed by the present invention, compared with the first embodiment, this embodiment also includes: a reinforcement mechanism 17 is arranged on the outer side of the lower end of the oil purifier 4. Because the transformer is installed outdoors, the stability of its installation will be affected by external factors. The reinforcement mechanism 17 is arranged to improve the safety of the installation and connection of the oil purifier 4; the reinforcement mechanism 17 includes a fixed plate 1701 fixedly connected to both sides of the lower end of the oil purifier 4, and the outer surfaces of the two fixed plates 1701 are provided with locking grooves, and the ends of the two sliding sleeves 19 away from each other are connected with sliders 1702, and the upper ends of the two sliders 1702 are connected with L-shaped connecting rods 1703, and the upper end of the heat dissipation plate 2 is slidably connected with movable plates 1704 respectively located on one side of the two fixed plates 1701, and the movable plates 1704 are fixedly connected to the L-shaped connecting rods 1703; the surfaces of the two movable plates 1704 close to each other are connected with locking rods, and the two locking rods and the two locking grooves are located in the same horizontal plane. The bottom end of 4 is fixed to the heat sink 2 by bolts. After the two oil pipes 9 are connected, the two-way control screw 8 can be driven by the two sliding sleeves 19 to move the two positioning rods 18 close to each other and respectively engage in the two grooves 1605 through the two sliding sleeves 19. The movement of the two sliding sleeves 19 will also drive the two sliders 1702 to move. The movement of the sliders 1702 drives the movable plate 1704 to move through the L-shaped connecting rod 1703. The two movable plates 1704 move close to each other and will drive the two locking rods to be inserted into the locking grooves on the outer surfaces of the two fixed plates 1701 respectively, thereby further fixing the oil purifier 4 and preventing the oil purifier 4 from being easily loosened during installation. When the oil purifier 4 needs to be disassembled, the two-way control screw 8 is rotated in the opposite direction. When the two positioning rods 18 leave the two grooves 1605, the two locking rods will also leave the two locking grooves. The oil purifier 4 can be disassembled in the next step. This design is convenient for disassembly and installation, and can lock the oil purifier 4 and the oil pipe 9.
[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. An amorphous alloy oil-immersed three-dimensional wound core transformer, comprising a base (1), a transformer body (3) being mounted on the upper end of the base (1) via a heat sink (2), an oil purifier (4) being arranged on one side of the transformer body (3), a heat sink (21) being arranged on the other side of the transformer body (3), a high-voltage bushing (5) and a low-voltage bushing (6) being arranged through the upper end of the transformer body (3), characterized in that: Also includes: An iron core (12) vertically arranged inside a transformer body (3) and a winding (10) arranged outside the iron core (12), wherein a bearing support assembly (13) is arranged outside the winding (10), and the bearing support assembly (13) comprises a plurality of U-shaped support plates (1301) sleeved on the outside of the winding (10), and a plurality of heat dissipation holes (1302) are provided on the side surfaces of the U-shaped support plates (1301); The oil purifier (4) is connected to the transformer body (3) via two oil pipes (9), the outer sides of the two oil pipes (9) are sleeved with a sleeve assembly (16), the inner sides of the oil pipes (9) are connected with a transfer pipe (20), the outer sides of the transfer pipes (20) are sleeved with a heat sink (21), the sleeve assembly (16) comprises a sliding sleeve rod (1601) sleeved on the outer sides of the oil pipes (9) and a positioning ring (1603), both ends of the positioning ring (1603) are connected with rectangular blocks (1604), and a reinforcement mechanism (17) is arranged on the outer side of the lower end of the oil purifier (4). A groove (1605) is provided on the outer side of the rectangular block (1604); the upper end of the heat sink (2) is rotatably connected to a bidirectional control screw (8); the bidirectional control screw (8) is sleeved with two sliding sleeves (19); the upper ends of the two sliding sleeves (19) are both connected to positioning rods (18); the positioning rods (18) are provided in corresponding grooves (1605); The outer side of the oil pipe (9) is sleeved with a push ring (1602) located at the outer end of the sliding sleeve rod (1601); the outer diameter of the positioning ring (1603) is larger than the inner diameter of the push ring (1602). The reinforcement mechanism (17) comprises fixed plates (1701) fixedly connected to both sides of the lower end of the oil purifier (4); the outer surfaces of the two fixed plates (1701) are provided with locking grooves; the ends of the two sliding sleeves (19) away from each other are connected to sliders (1702); the upper ends of the two sliders (1702) are connected to L-shaped connecting rods (1703); the upper end of the heat dissipation plate (2) is slidably connected to movable plates (1704) respectively located on one side of the two fixed plates (1701); and the movable plates (1704) are fixedly connected to the L-shaped connecting rods (1703).
2. The amorphous alloy oil-immersed three-dimensional wound core transformer according to claim 1, characterized in that: The surfaces of the two movable plates (1704) close to each other are connected with locking rods, and the two locking rods and the two locking grooves are located in the same horizontal plane. The bottom end of the oil purifier (4) is fixed to the heat dissipation plate (2) by bolts.
3. The amorphous alloy oil-immersed three-dimensional wound core transformer according to claim 1, characterized in that: The lower end of the oil pipe (9) is connected to an orientation bar, and the inner wall of the lower end of the positioning ring (1603) is provided with a groove, and the orientation bar is slidably connected in the groove.
4. The amorphous alloy oil-immersed three-dimensional wound core transformer according to claim 2, characterized in that: A rectangular groove is provided at the upper end of the heat dissipation plate (2), the bidirectional control screw (8) is rotatably connected in the rectangular groove, and one end of the bidirectional control screw (8) passes through the side surface of the heat dissipation plate (2) and is fixedly connected to a round block.
5. The amorphous alloy oil-immersed three-dimensional wound core transformer according to claim 1, characterized in that: Two adjacent U-shaped support plates (1301) are connected via an arc-shaped connecting block (1303), and the inner arc surfaces of the plurality of U-shaped support plates (1301) form a circular structure.
6. The amorphous alloy oil-immersed three-dimensional wound core transformer according to claim 5, characterized in that: The outer arc surface of each U-shaped support plate (1301) is fixedly connected to a side wing block (14), and a positioning bolt (15) inserted into the inner wall of the bottom end of the transformer body (3) passes through the side wing block (14), thereby improving the balance of the U-shaped support plate (1301).