A high-performance three-dimensional wound core transformer

Abstract

The application relates to a high-performance three-dimensional wound core transformer which is characterized by comprising end supports and three iron cores, the iron cores being connected through winding layers, and the end supports being fixed to the two ends of the iron cores; a fixed bearing seat is arranged in pairs at the winding layers, a rotating piece is arranged on the fixed bearing seat, a first ring groove and a clamping groove are arranged on the rotating piece, a ring pipe is arranged in the first ring groove, and a connecting pipe is arranged in the clamping groove and communicates with the ring pipe; the high-performance three-dimensional wound core transformer is convenient for winding the layer paper and the coil, and the internal pipe system can be used for overall cooling or local cooling of the coil.

Description

Technical Field

[0001] This invention belongs to the field of core transformer technology, specifically a high-performance three-dimensional wound core transformer. Background Technology

[0002] At present, transformers are mainly planar laminated core transformers. With the implementation of national energy conservation and emission reduction policies, the market requirements for transformers are getting higher and higher, and cost control is becoming more stringent. Against this background, dry-type triangular three-dimensional wound core transformers have obvious advantages.

[0003] The dry-type delta-shaped three-dimensional wound core transformer is an energy-saving power transformer. It creatively reforms the traditional laminated magnetic circuit structure and three-phase layout of power transformers, making the product performance more optimized, such as complete symmetry of the three-phase magnetic circuit, significant energy saving effect, greatly reduced noise, stronger heat dissipation and overload capacity, and compact structure and small size.

[0004] Under normal temperatures, dry-type delta-wound core transformers can dissipate heat through simple heat transfer, effectively reducing the internal temperature and ensuring the normal operation of their internal electronic components. However, with global warming, outdoor temperatures in some parts of my country can exceed 40 degrees Celsius in summer. This severely impacts the heat dissipation efficiency of dry-type delta-wound core transformers. The heat generated during operation cannot be effectively exchanged with the outside air through heat transfer, resulting in excessively high internal temperatures. This significantly affects the performance and lifespan of electronic components. Therefore, improving the heat dissipation efficiency of dry-type delta-wound core transformers is a crucial technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: existing transformers have problems such as difficulty in winding coils and poor internal heat dissipation.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-performance three-dimensional wound core transformer, characterized in that it comprises,

[0008] The end bracket consists of three iron cores connected by a winding layer, with the end bracket fixed to both ends of the iron cores.

[0009] A pair of fixed bearing seats are provided at the winding layer. A rotating component is provided on the fixed bearing seat. A first annular groove and a cross groove are provided on the rotating component. An annular tube is provided in the first annular groove, and a connecting pipe is provided in the cross groove, which communicates with the annular tube.

[0010] As a preferred technical solution for a high-performance three-dimensional wound core transformer, the fixed bearing seat includes two first ring plates; the two first ring plates are connected end to end, one end of the first ring plate is provided with an inner plate, and the other end is provided with an outer plate, the inner plate and the outer plate cooperate with each other.

[0011] As a preferred technical solution for a high-performance three-dimensional wound core transformer, the inner plate is provided with threaded holes and the outer plate is provided with countersunk holes;

[0012] A slip ring is provided on the outer side of the first ring plate.

[0013] As a preferred technical solution for a high-performance three-dimensional wound core transformer, the rotating component includes two second ring plates, a platform is provided on one side of the second ring plate, the first ring groove is provided along the circumference of the platform, and the platform groove is provided along the axial direction of the platform.

[0014] As a preferred technical solution for a high-performance three-dimensional wound core transformer, a through slot is provided on the second ring plate, which communicates with the first ring slot, and a single tube extends from the ring tube and passes through the through slot.

[0015] As a preferred technical solution for a high-performance three-dimensional wound core transformer, a second annular groove is provided on the outer circumferential surface of the second annular plate, and a plastic hoop is provided in the second annular groove.

[0016] As a preferred technical solution for a high-performance three-dimensional wound core transformer, the second ring plate has a slot at one end and an insert plate at the other end, wherein the insert plate has a trapezoidal slot.

[0017] As a preferred technical solution for a high-performance three-dimensional wound core transformer, it further includes an inner retaining plate, which comprises a side plate and an inner retaining plate disposed on one side of the side plate and moving inward. A side block is disposed on the other side of the side plate.

[0018] As a preferred technical solution for a high-performance three-dimensional wound core transformer, a groove is provided on the other side of the second ring plate, and the inner retaining plate is disposed in the groove and engages with the trapezoidal retaining groove.

[0019] As a preferred technical solution for a high-performance three-dimensional wound core transformer, a first valve is provided at the connection between the connecting pipe and the ring pipe, and a second valve is provided at the connection between the single pipe and the ring pipe.

[0020] The beneficial effects of the present invention are: the high-performance three-dimensional wound core transformer of the present invention facilitates the winding of the paper and coil, and the coil can be cooled as a whole or locally through the internal piping system. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the rotating component and the annular tube in this invention;

[0024] Figure 3 This is a schematic diagram of the fixed bearing seat in this invention;

[0025] Figure 4 This is a schematic diagram of the rotating component in this invention;

[0026] Figure 5 This is a schematic diagram of the internal card plate in this invention;

[0027] Figure 6 This is a schematic diagram of the flow direction of cooling oil inside the pipe in this invention.

[0028] Reference numerals: end bracket 100, iron core 200, winding layer 300, fixed bearing seat 400, rotating part 500, first annular groove 501, groove 502, annular pipe 600, connecting pipe 601, first annular plate 401, inner connecting plate 401a, outer connecting plate 401b, threaded hole 401c, countersunk hole 401d, slip ring 401e, second annular plate 503, platform 504, through groove 505, single pipe 602, second annular groove 506, plastic hoop ring 507, slot 503a, insert plate 503b, trapezoidal slot 503c, inner retaining plate 508, side plate 508a, inner retaining plate 508b, side block 508c, embedded groove 503d, first valve 603, second valve 604. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1

[0034] Reference Figures 1-6 This embodiment provides a high-performance three-dimensional wound core transformer, including,

[0035] An end bracket 100 and three iron cores 200 are connected to each other by a winding layer 300. The end bracket 100 is fixed to both ends of the iron cores 200. Fixed bearing seats 400 are provided in pairs at the winding layer 300. A rotating component 500 is provided on the fixed bearing seat 400. A first annular groove 501 and a groove 502 are provided on the rotating component 500. An annular tube 600 is provided in the first annular groove 501. A connecting pipe 601 is provided in the groove 502 and communicates with the annular tube 600.

[0036] The three iron cores 200 are connected to each other through the winding layer 300. The included angle between the iron cores 200 is 60°, forming an equilateral triangle structure. After the end bracket 100 is connected to the three iron cores 200, the core frame of the transformer is formed. Then, insulating paper and copper wire need to be wound at the connection points between the three iron cores 200, that is, at the winding layer 300.

[0037] The end bracket 100 is used to maintain the connection between the three iron cores 200, as well as to assist in wiring and place other pipes and electrical components.

[0038] It should be noted that the rotating parts 500 are also arranged in pairs, and a ring tube 600 is provided on the rotating parts 500 at both ends, and the connecting pipe 601 connects the ring tubes 600 at both ends.

[0039] It should be noted that, Figure 1To clearly demonstrate the connection structure of the connecting tube 601 and the ring tube 600 on the iron core 200, the coil and the paper are removed from one of the iron core connection points for display.

[0040] The fixed bearing seat 400 includes two first ring plates 401; the two first ring plates 401 are connected end to end, one end of the first ring plate 401 is provided with an inner connecting plate 401a, and the other end is provided with an outer connecting plate 401b, and the inner connecting plate 401a and the outer connecting plate 401b cooperate with each other.

[0041] The two first ring plates 401 are connected end to end to form a complete circular ring structure, and the outer plate 401b is stacked on the outside of the inner plate 401a.

[0042] The inner plate 401a is provided with a threaded hole 401c, and the outer plate 401b is provided with a countersunk hole 401d; a slip ring 401e is provided on the outer side of the first ring plate 401.

[0043] The central angle of a single slip ring 401e is 180°.

[0044] The threaded hole 401c and the countersunk hole 401d are in corresponding positions, and the two slip rings 401e are spliced ​​together to form a complete slip ring. The screw is inserted from the countersunk hole 401d and screwed into the threaded hole 401c, and presses against the iron core 200. While tightening the inner plate 401a and the outer plate 401b into one piece, the fixed bearing seat 400 is kept fixed relative to the iron core 200.

[0045] It should be noted that a threaded countersunk hole is also provided in the middle position of the first ring plate 401 to assist in fixing the fixed bearing seat 400.

[0046] During use, padding is applied to the connection of the iron core 200 and the connection of the winding layer 300. For example, a rigid support structure is placed at a suitable position at both ends to make its outer circumference circular, which facilitates the installation and calibration of the installation center of the fixed bearing seat 400. The two first ring plates 401 are connected into a complete ring by bolts. After the two fixed bearing seats 400 at both ends are installed, the rotating part 500 is installed.

[0047] Specifically, the rotating component 500 includes two second ring plates 503. A platform 504 is provided on one side of the second ring plate 503. A first ring groove 501 is provided along the circumference of the platform 504, and a groove 502 is provided along the axial direction of the platform 504.

[0048] A through groove 505 is provided on the second ring plate 503, which communicates with the first ring groove 501. A single tube 602 extends from the ring tube 600 and passes through the through groove 505. A second ring groove 506 is provided on the outer circumference of the second ring plate 503, and a plastic hoop ring 507 is provided in the second ring groove 506. A slot 503a is provided at one end of the second ring plate 503, and an insert plate 503b is provided at the other end. The insert plate 503b is provided with a trapezoidal slot 503c.

[0049] It also includes an inner retaining plate 508, which includes a side plate 508a and an inner retaining plate 508b disposed on one side of the side plate 508a and moving inward. A side block 508c is provided on the other side of the side plate 508a; a groove 503d is provided on the other side of the second ring plate 503, and the inner retaining plate 508 is disposed in the groove 503d and engages with the trapezoidal groove 503c.

[0050] The side block 508c is used to assist in situations where adjustments or disassembly are needed, such as when the inner retractable plate 508 needs to be removed. Specifically, the inner retractable plate 508 can be clamped with pliers or other tools and force applied outward to open the inner retractable plate 508b outward and remove it.

[0051] Specifically, the two second ring plates 503 are fitted onto the fixed bearing seat 400 and lubricated at the connection point. The insert plate 503b is inserted into the corresponding slot 503a. The position of the trapezoidal slot 503c corresponds to the position of the groove 503d. The inner retaining plate 508 is inserted into the trapezoidal slot 503c from the groove 503d.

[0052] Then, the ring pipe 600 and the connecting pipe 601 are installed and spliced, and the connection is sealed.

[0053] During or after the installation of the second ring plate 503, the plastic hoop 507 is fitted into the second ring groove 506. The outermost layer of the plastic hoop 507 has a large friction force, which can drive the rotating part 500 and the entire pipeline system to rotate by driving the rotating wheel structure with the same large outer ring friction force. During the rotation, the paper and coil are wound around the outside of the connecting pipe 601.

[0054] Connecting pipe 601 serves both as a support and as a means of transmitting cooling oil for cooling.

[0055] A first valve 603 is provided at the connection between the connecting pipe 601 and the ring pipe 600, and a second valve 604 is provided at the connection between the single pipe 602 and the ring pipe 600.

[0056] Specifically, in this embodiment, there are three connecting tubes 601, but there are at least six pairs of slots 502 on the platform 504. Apart from the slots where the connecting tubes 601 are placed, the rest are used to place the mounting rods for supporting the winding of the paper layer and the coil.

[0057] Cooling oil is installed inside the connecting pipe 601 and the ring pipe 600. The inner coil and the ring pipe 600 are cooled by the flow inside the pipe. By controlling the various valves, the flow direction of the cooling oil can be controlled, allowing it to traverse the entire pipeline system or concentrate it in a certain part to enhance the cooling effect at that point.

[0058] Specifically, the single pipe 602 on one side is the inlet pipe, and the pipe on the other side is the outlet pipe, as shown in the reference. Figure 6 The second valve 604(2) at the inlet pipe is opened, allowing the cooling oil to flow to the first valve 603(1). Then the cooling oil flows to the connecting pipe 601, through the first valve 603(6) to the first valve 603(2), then through the connecting pipe 601 to the first valve 603(3), then to the first valve 603(2), and then through the connecting pipe 601 through the first valve 603(4) to the second valve 604(1). It flows out from the outlet pipe and back to the inlet pipe through the outer control pipe, completing the cooling of the entire pipeline.

[0059] It should be noted that during this process, the second valve 604(2), the first valve 603(2), the first valve 603(2), and the second valve 604(1) are three-way valves with both outlet valves fully open, and they are one-way valves with one inlet and one outlet (when the oil injection direction is determined).

[0060] Similarly, by changing the opening and closing of the valves, the local cooling of the connecting pipe 601 can be enhanced, such as by opening the second valve 604(2), the first valve 603(1), the first valve 603(6), and the second valve 604(1).

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high performance three-dimensional wound core transformer characterized by: The utility model relates to a high-performance three-dimensional roll iron core transformer, including, End support (100) and three iron cores (200), iron core (200) is connected through winding layer (300) between, end support (100) is fixed in iron core (200) both ends, Winding layer (300) is provided with fixed bearing seat (400) in pairs, rotating part (500) is provided on fixed bearing seat (400), first ring groove (501) and the groove (502) are provided on rotating part (500), ring pipe (600) is provided in first ring groove (501), and connecting pipe (601) is provided in groove (502) and communicates with ring pipe (600), Fixed bearing seat (400) includes two first ring plates (401), two first ring plates (401) are connected head to tail, and one end of first ring plate (401) is provided with inner joint plate (401a), and the other end is provided with outer joint plate (401b), and inner joint plate (401a) and outer joint plate (401b) are matched, Threaded hole (401c) is provided on inner joint plate (401a), and counterbore (401d) is provided on outer joint plate (401b), First ring plate (401) outside is provided with slip ring (401e), Rotating part (500) includes two second ring plates (503), one side of second ring plate (503) is provided with the stage (504), first ring groove (501) is provided along the circumferential direction of stage (504), and groove (502) is provided along the axial direction of stage (504), Through groove (505) is provided on second ring plate (503) and communicates with first ring groove (501), single pipe (602) extends out on ring pipe (600), and single pipe (602) is provided in through groove (505), second valve two (604 (2)) at inlet pipe is opened, and cooling oil flows to first valve one (603 (1)), then cooling oil flows to connecting pipe (601), and flows to first valve two (603 (2)) through first valve six (603 (6)), and then flows to first valve three (603 (3)) through connecting pipe (601), then flows to first valve two (603 (2)) and then flows to second valve one (604 (1)) through connecting pipe (601) through first valve four (603 (4)), and flows out from outlet pipe, and flows back to inlet pipe through outside control pipeline, and the whole pipeline is traversed and cooled.

2. The high performance three-dimensional wound core transformer of claim 1, wherein: The outer circumferential surface of the second ring plate (503) is provided with a second ring groove (506), and a plastic hoop ring (507) is arranged in the second ring groove (506).

3. The high-performance three-dimensional roll iron core transformer according to claim 2, wherein: One end of the second ring plate (503) is provided with a slot (503a), and the other end is provided with an insertion plate (503b), and the insertion plate (503b) is provided with a trapezoidal clamping groove (503c).

4. The high performance three-dimensional wound core transformer of claim 3, wherein: Further comprising an inwardly retracting clamping plate (508), the inwardly retracting clamping plate (508) comprises a side plate (508a) and an inwardly retracting plate (508b) disposed inwardly on one side of the side plate (508a); the other side of the side plate (508a) is provided with a side block (508c).

5. The high performance three-dimensional wound core transformer of claim 4, wherein: The second ring plate (503) is provided with an embedding groove (503d) on the other side, and the inner receiving clamping plate (508) is arranged in the embedding groove (503d) and clamped with the trapezoidal clamping groove (503c).

6. The high-performance three-dimensional wound-core transformer according to claim 5, characterized in that: The connecting pipe (601) is provided with a first valve (603) at the connection with the ring pipe (600), and the single pipe (602) is provided with a second valve (604) at the connection with the ring pipe (600).

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