Coil mold of epoxy pouring amorphous alloy dry-type transformer
By designing the coil mold for epoxy-cast amorphous alloy dry-type transformers, and using thin steel plates and connecting seals clamping structures, the problem of easy deformation of traditional molds was solved, the strength and service life of the molds were improved, and production costs were reduced.
Patent Information
- Application Number
- CN202423252799.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional rectangular coil molds for amorphous alloy transformers have poor versatility, are prone to deformation, have a short service life, and are difficult to demold.
A coil mold for an epoxy-cast amorphous alloy dry-type transformer was designed. It is made of thin steel plate forming a rectangular shape, with connecting seals and clamping parts, reinforcing plates and end plates, and is fixed by welding and threaded connections to improve the strength and stability of the mold.
This achieves high strength, long lifespan, strong versatility, simple demolding, and repeated use of the mold, thereby reducing the production cost of amorphous alloy transformers.
Smart Images
Figure CN223644080U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dry-type transformers, and particularly relates to a coil mold for an epoxy-cast amorphous alloy dry-type transformer. Background Technology
[0002] In recent years, the State Grid Corporation of China has continuously promoted the construction concepts of "resource-saving, environmentally friendly, industrialized, and intelligent" and "full life cycle" design, with substation design and construction constantly developing towards resource conservation, environmental friendliness, industrialization, and intelligence. New technologies, equipment, and materials are constantly being applied and promoted, driving the development of energy conservation and emission reduction in substations.
[0003] Amorphous alloy transformers are transformers with cores made of amorphous alloys. The metallic atoms of amorphous alloy materials are arranged in a disordered amorphous state, making demagnetization and magnetization processes extremely easy to complete. This results in lower losses compared to silicon steel cores, achieving high efficiency and energy saving.
[0004] Because amorphous alloy transformers are 20% to 30% more expensive than comparable traditional products, their widespread adoption in substations remains challenging. However, in the long run, the energy-saving effect of amorphous alloy transformers is very significant. The initial investment in purchasing an amorphous alloy transformer can be recovered within several years through reduced losses and lower operating costs.
[0005] Traditional dry-type transformers typically use circular coils, while amorphous alloy transformers use rectangular coils. Compared to the molds used for traditional circular coils, the rectangular coils used in amorphous alloy transformers are more expensive, have poor versatility, are prone to mold deformation, have a short service life, and are difficult to demold. Utility Model Content
[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a coil mold for an epoxy-cast amorphous alloy dry-type transformer.
[0007] To achieve the above objectives, the solution adopted by this utility model is as follows:
[0008] This utility model provides a coil mold for an epoxy-cast amorphous alloy dry-type transformer, comprising:
[0009] The mold body is a rectangular shape formed by thin steel plates, with the cut end bent inward to form two parallel folded edges;
[0010] A connecting seal is used to connect two parallel folded edges at the break of the mold body, including an I-beam with grooves on both sides and a leak-proof rubber strip embedded in the grooves on both sides of the I-beam;
[0011] A clamping element is used to clamp the connecting seal between two parallel folded edges of the mold body, and a leak-proof rubber strip embedded in the grooves on both sides of the I-beam tightly adheres to the folded edges of the mold body.
[0012] Preferably, the mold body is formed by splicing together two rectangular shapes with inclined cross-sections, which are enclosed by two thin steel plates that are wide at one end and narrow at the other.
[0013] Preferably, it also includes a reinforcing plate, which is a pair of semi-circular annular steel plates fixed on the inner wall of the mold body. The ends of the pair of semi-circular annular steel plates abut against two parallel folded edges at the break of the mold body, and a plurality of first threaded holes evenly distributed on the pair of semi-circular annular steel plates are provided on the reinforcing plate.
[0014] Preferably, the number of reinforcing plates is at least three sets, located at the top, middle and bottom of the mold body respectively.
[0015] Preferably, it also includes two end plates, located at the top and bottom of the mold body respectively. On each end plate, a square hole for passing through the winding spool is opened in the middle, and grooves for the connecting seal to pass through are opened on both sides. A second threaded hole corresponding to the first threaded hole of the reinforcing plate is opened near the edge. The end plate is fixed to the reinforcing plate by bolts passing through the first threaded hole and the second threaded hole.
[0016] Preferably, the clamping element includes a C-shaped clamp and a locking screw screwed onto one end of the C-shaped clamp, the other end of the C-shaped clamp being engaged with a folded edge at the break of the mold body, and the protruding end of the locking screw abutting against another folded edge at the break of the mold body.
[0017] Beneficial effects
[0018] This utility model provides a coil mold for an epoxy cast amorphous alloy dry-type transformer. It has a simple structure, strong versatility, high mold strength, is not easily deformed, has a long service life, can be reused, and is easy and convenient to disassemble. Attached Figure Description
[0019] Figure 1 This is a top view of the coil mold of the epoxy-cast amorphous alloy dry-type transformer according to this utility model, after removing the end plate.
[0020] Figure 2 for Figure 1 Side view.
[0021] Figure 3 This is a schematic diagram of the connection seal of the coil mold of the epoxy cast amorphous alloy dry-type transformer involved in this utility model.
[0022] Figure 4 This is a schematic diagram of the end plate structure of the coil mold of the epoxy cast amorphous alloy dry-type transformer involved in this utility model. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Therefore, the following solutions are proposed:
[0030] See Figure 1 This utility model provides a coil mold for an epoxy cast amorphous alloy dry-type transformer, including a mold body 1, a connecting seal 2, a clamping member 3, and a reinforcing plate 4.
[0031] Specifically, in the coil mold of the epoxy cast amorphous alloy dry-type transformer of this utility model, the mold body 1 is an approximately rectangular shape formed by thin steel plates, with the cut end bent inward to form two parallel folded edges 11. The connecting seal 2 is used to connect the two parallel folded edges 11 at the cut end, and the clamping member 3 is used to clamp the connecting seal 2 between the two parallel folded edges 11 of the mold body 1.
[0032] In one specific embodiment of this utility model, the mold body 1 is formed by splicing together two rectangular shapes with inclined cut surfaces 12, which are enclosed by two thin steel plates that are wide at one end and narrow at the other, forming a right-angled trapezoidal shape. Figure 2 As shown), the joints are connected by means such as welding.
[0033] As one specific embodiment of this utility model, such as Figure 3 As shown, the connecting seal 2 includes an I-beam 21 with grooves 21a on both sides and a leak-proof rubber strip 22 embedded in the grooves 21a on both sides of the I-beam 21.
[0034] In one specific embodiment of this utility model, the clamping member 3 clamps the connecting sealing member 2 between the two parallel folded edges 11 of the mold body 1, and the leak-proof rubber strip 22 embedded in the grooves 21a on both sides of the I-beam 21 is tightly attached to the folded edges 11 of the mold body 1. In some embodiments, the clamping member 3 includes a C-shaped clamp 31 and a locking screw 32 screwed on one end of the C-shaped clamp. The other end of the C-shaped clamp 31 is clamped at one folded edge 11 at the break of the mold body 1, and the protruding end of the locking screw 32 abuts against the other folded edge 11 at the break of the mold body 1, thereby clamping the connecting sealing member 2 between the two parallel folded edges 11 of the mold body 1.
[0035] In one specific embodiment of this utility model, the reinforcing plate 4 is a pair of semi-circular annular steel plates 41, which are fixed to the inner wall of the mold body 1 by means of welding, for example. The ends 41a of the pair of semi-circular annular steel plates 41 abut against two parallel folded edges 11 at the break of the mold body 1, and a plurality of first threaded holes 42 are evenly distributed on the pair of semi-circular annular steel plates 41 on the reinforcing plate 4.
[0036] In some embodiments, multiple sets of reinforcing plates 4 may be included, such as three sets of reinforcing plates 4 located at the top, middle and bottom of the mold body 1 respectively. Alternatively, several more sets of reinforcing plates 4 may be added to the middle of the mold body 1 according to the specific circumstances.
[0037] Furthermore, in the coil mold of the epoxy-cast amorphous alloy dry-type transformer of this utility model, two additional pieces are included at the top and bottom of the mold body 1, such as... Figure 4 The end plate 5 shown has a square hole 51 in the middle for the winding spool to pass through, and grooves 52 on both sides for connecting the seal 2 to pass through. Near the edge, there is a second threaded hole 53 corresponding to the first threaded hole 42 of the reinforcing plate 4. The end plate 5 can be fixed to the reinforcing plate 4 by passing bolts through the first threaded hole 42 and the second threaded hole 53 of the reinforcing plate 4.
[0038] This utility model provides a coil mold for an epoxy cast amorphous alloy dry-type transformer. It has a simple structure, strong versatility, high mold strength, is not easily deformed, has a long service life, can be reused, and is easy and convenient to disassemble.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A coil mold for an epoxy-cast amorphous alloy dry-type transformer, characterized in that, include: The mold body is a rectangular shape formed by thin steel plates, with the cut end bent inward to form two parallel folded edges; A connecting seal is used to connect two parallel folded edges at the break of the mold body, including an I-beam with grooves on both sides and a leak-proof rubber strip embedded in the grooves on both sides of the I-beam; A clamping element is used to clamp the connecting seal between two parallel folded edges of the mold body, and a leak-proof rubber strip embedded in the grooves on both sides of the I-beam tightly adheres to the folded edges of the mold body.
2. The coil mold for the epoxy-cast amorphous alloy dry-type transformer according to claim 1, characterized in that, The mold body is formed by splicing together two rectangular shapes with inclined cuts, which are enclosed by two thin steel plates that are wide at one end and narrow at the other.
3. The coil mold for the epoxy-cast amorphous alloy dry-type transformer according to claim 2, characterized in that, It also includes a reinforcing plate, which is a pair of semi-circular annular steel plates fixed on the inner wall of the mold body. The ends of the pair of semi-circular annular steel plates abut against two parallel folded edges at the break of the mold body, and a number of first threaded holes evenly distributed on the pair of semi-circular annular steel plates are provided on the reinforcing plate.
4. The coil mold for the epoxy-cast amorphous alloy dry-type transformer according to claim 3, characterized in that, The number of reinforcing plates is at least three sets, located at the top, middle and bottom of the mold body respectively.
5. The coil mold for the epoxy-cast amorphous alloy dry-type transformer according to claim 4, characterized in that, It also includes two end plates, located at the top and bottom of the mold body respectively. On each end plate, a square hole for the winding spool is opened in the middle, and grooves for the connecting seal to pass through are opened on both sides. A second threaded hole corresponding to the first threaded hole of the reinforcing plate is opened near the edge. The end plate is fixed to the reinforcing plate by bolts passing through the first threaded hole and the second threaded hole.
6. The coil mold for the epoxy-cast amorphous alloy dry-type transformer according to claim 1, characterized in that, The clamping element includes a C-shaped clamp and a locking screw screwed onto one end of the C-shaped clamp. The other end of the C-shaped clamp is engaged with a folded edge at the break of the mold body, and the protruding end of the locking screw abuts against another folded edge at the break of the mold body.