Solid-state transformer with flexible power distribution system capable of accepting distributed power supply

Abstract

The utility model provides a solid-state transformer with a flexible power distribution system capable of receiving a distributed power supply, and relates to the technical field of solid-state transformers, the solid-state transformer comprises an iron core rod, an outer shell and a sleeve plate, the upper parts of the left and right side walls in the outer shell are respectively provided with an upper groove, and the lower parts of the left and right side walls in the outer shell are respectively provided with a lower groove; a set of sleeve plates are embedded between the two sets of upper grooves and the two sets of lower grooves which are aligned left and right, a plurality of sets of iron core rods are installed between the upper set of sleeve plates and the lower set of sleeve plates, coils are wound around the iron core rods, a bottom plate is arranged at the bottom of the outer shell, supporting feet are arranged on the left portion and the right portion of the lower end face of the bottom plate, and a top plate is arranged on the top of the outer shell. According to the utility model, the internal coil winding iron core rod structure can be conveniently and stably assembled, so that the iron core rod structure is kept safe and stable, stable and reliable current transmission is ensured, large-area outward heat transfer, ventilation and heat dissipation are facilitated, over-high operation stability of internal equipment is avoided, and the use is safer, more stable and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state transformers, and particularly relates to a solid-state transformer with a flexible power distribution system capable of accommodating distributed power sources. Background Art

[0002] With the advancement of the "dual carbon" strategy and the construction of a new power system, distributed power sources are playing an increasingly important role in the power grid. The flexible power distribution system has become a key technology to address challenges such as diverse electricity demand and large-scale access of distributed power sources. The RCL-0923 new energy group control, group regulation, acquisition, access and flexible control device of Zhihao Electric successfully realizes the intelligentization and automation of the observable, measurable, adjustable and controllable power generation data of distributed power sources. Therefore, in order to ensure the safe and efficient operation of the distribution network, it is crucial to introduce and support a flexible power distribution system for distributed power sources.

[0003] In the specification of a flexible power distribution transformer based on full flexible control in the prior art (publication number CN103490639A), it is mentioned that "the transformer includes a high-voltage unit, an isolation unit and a low-voltage unit; the high-voltage unit, the isolation unit and the low-voltage unit are connected in sequence, and both between the high-voltage and isolation units and between the isolation unit and the low-voltage unit are connected through a DC bus", but the flexible power distribution system of distributed power sources in the prior art has a large current consumption, is prone to an increase in operating stability, and is prone to fire accidents due to unstable operation, posing certain potential safety hazards. Summary of the Utility Model

[0004] To overcome the defects existing in the prior art, the present utility model provides a solid-state transformer with a flexible power distribution system capable of accommodating distributed power sources, so as to solve the problems that the flexible power distribution system of distributed power sources in the prior art has a large current consumption, is prone to an increase in operating stability, is prone to fire accidents due to unstable operation, and poses certain potential safety hazards.

[0005] To achieve the above object, the present utility model provides a solid-state transformer with a flexible power distribution system capable of accommodating distributed power sources, including an iron core rod, a housing body and a sleeve plate. Upper grooves are provided on the upper parts of the left and right side walls inside the housing body, lower grooves are provided on the lower parts of the left and right side walls inside the housing body, and a set of sleeve plates are fitted between the two sets of upper grooves and the two sets of lower grooves that are aligned left and right. A plurality of iron core rods are installed between the upper and lower sets of sleeve plates, and coils are wound around the iron core rods.

[0006] Further, a bottom plate is provided at the bottom of the housing body, support feet are provided on the left and right parts of the lower end surface of the bottom plate, a top plate is provided at the top of the housing body, a plurality of upper through holes are opened on the top plate, and side ventilation frames are provided on both sides of the housing body.

[0007] Further, ventilation openings are provided on the outer side of the side ventilation frame. Multiple groups of first heat dissipation fans are installed in the ventilation openings, and an outer protective mesh surface is provided on the outer side of the ventilation openings.

[0008] Further, frame openings are provided on the front and rear side surfaces of the outer housing, and heat transfer plates are installed in the frame openings. The rear side surface of the heat transfer plate is closely attached to the outside of the coil wound on the iron core rod, and heat dissipation fin groups are provided on the front side surface of the heat transfer plate. Multiple groups of second heat dissipation fans are installed in the middle of the heat dissipation fin groups.

[0009] Further, a left insulation protection structure and a right insulation protection structure are respectively sleeved on the left and right parts of the coil. The left insulation protection structure and the right insulation protection structure are symmetric about the center line of the iron core rod, and an insulation sleeve is provided at the upper end of the iron core rod and extends out of the upper through hole.

[0010] Further, an upper clamping plate is provided at the upper part of the right insulation protection structure, and an upper pressing plate is provided at the upper end of the upper clamping plate. The upper pressing plate presses on the upper end of the coil. A lower clamping plate is provided at the lower part of the right insulation protection structure, and a lower pressing plate is provided at the lower end of the lower clamping plate. The lower pressing plate presses on the lower end of the coil. The upper clamping plate and the lower clamping plate surround the outer ring surface on the right side of the coil.

[0011] Further, multiple groups of sleeve holes are formed in the sleeve plate, and each group of sleeve holes is sleeved on the end head of the iron core rod. The sleeve plate is detachably connected to the iron core rod, the upper groove, and the lower groove.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the outer housing dissipates heat through the side ventilation frames and ventilation openings on the left and right sides. The first heat dissipation fans in the ventilation openings play a role in accelerating the heat dissipation speed by air cooling, and the ventilation openings also play a protective role, making the heat dissipation and temperature reduction safer and more reliable.

[0014] 2. In the present utility model, the heat transfer plates provided on the front and rear sides of the outer housing facilitate the transfer of heat to the second heat dissipation fans, with a large heat transfer area and more uniform and rapid heat dissipation.

[0015] 3. In the present utility model, the coil wound on the iron core rod is stably sleeved and tightened through the left insulation protection structure and the right insulation protection structure, so that the coil is not easily loosened or damaged, and the use is safer and more reliable.

[0016] 4. In the present utility model, the setting of the sleeve plate facilitates the stable installation of the iron core rod, so that the upper and lower end heads of the iron core rod are prevented from directly contacting the housing of the iron core rod. The setting is safer and more reliable. At the same time, more space can be reserved to prevent the internal structure from being too compact to dissipate heat, and it is convenient for assembly or disassembly, making it safer and more practical. Description of the Drawings

[0017] Figure 1 Front view schematic diagram of the embodiment of the present utility model;

[0018] Figure 2 Cross-sectional schematic diagram of the embodiment of the present utility model;

[0019] Figure 3 Effect diagram of the structural arrangement on the iron core rod of the embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the sleeve plate of the embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the heat transfer plate of the embodiment of the present utility model.

[0022] In the figure: 1. Iron core rod; 10. Coil; 11. Upper pressure plate; 12. Upper holding plate; 13. Right insulation protection structure; 14. Lower holding plate; 15. Lower pressure plate; 16. Left insulation protection structure; 17. Insulating sleeve; 2. Outer housing; 20. Bottom plate; 21. Top plate; 22. Upper through hole; 23. Side ventilation frame; 24. Ventilation opening; 25. First cooling fan; 26. Outer protective mesh surface; 27. Upper groove; 28. Lower groove; 29. Support feet; 200. Frame opening; 3. Sleeve plate; 30. Sleeve hole; 4. Heat transfer plate; 40. Heat dissipation fin group; 41. Second cooling fan. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Specific details such as specific system structures and technologies are proposed to more thoroughly understand the embodiments of the present utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present disclosure.

[0024] The following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0025] Figure 1 Front view schematic diagram of the embodiment of the present utility model, Figure 2 Cross-sectional schematic diagram of the embodiment of the present utility model, Figure 3 Effect diagram of the structural arrangement on the iron core rod of the embodiment of the present utility model, Figure 4 Schematic diagram of the sleeve plate of the embodiment of the present utility model and Figure 5Schematic diagram of the heat transfer plate according to an embodiment of the present utility model.

[0026] Referring to Figures 1 to 5 As shown, the present utility model provides a solid-state transformer with a flexible power distribution system capable of accommodating distributed power sources, including an iron core rod 1, a housing 2, and a sleeve plate 3. Upper grooves 27 are provided at the upper parts of the left and right side walls inside the housing 2, and lower grooves 28 are provided at the lower parts of the left and right side walls inside the housing 2. A set of sleeve plates 3 are fitted between the two groups of upper grooves 27 and the two groups of lower grooves 28 that are aligned left and right. A plurality of iron core rods 1 are installed between the upper and lower sets of sleeve plates 3, and coils 10 are wound around the iron core rods 1.

[0027] In this embodiment, a bottom plate 20 is provided at the bottom of the housing 2. Support feet 29 are provided at the left and right parts of the lower end surface of the bottom plate 20. A top plate 21 is provided at the top of the housing 2. A plurality of upper through holes 22 are formed in the top plate 21. Side ventilation frames 23 are provided on both the left and right sides of the housing 2. A ventilation port 24 is provided on the outer side of the side ventilation frame 23. A plurality of first heat dissipation fans 25 are installed in the ventilation port 24, and an outer protective mesh surface 26 is provided on the outer side of the ventilation port 24.

[0028] As a preferred embodiment, in the present utility model, the housing 2 dissipates heat through the side ventilation frames 23 and ventilation ports 24 on both sides. The first heat dissipation fans 25 in the ventilation ports 24 accelerate the heat dissipation speed by air cooling, and the ventilation ports 24 also play a protective role, making the heat dissipation and temperature reduction safer and more reliable.

[0029] In this embodiment, frame openings 200 are provided on both the front and rear sides of the housing 2, and heat transfer plates 4 are installed in the frame openings 200. The rear side of the heat transfer plate 4 is closely attached to the outside of the coils 10 wound around the iron core rod 1, and heat dissipation fin groups 40 are provided on the front side of the heat transfer plate 4. A plurality of second heat dissipation fans 41 are installed in the middle of the heat dissipation fin groups 40.

[0030] As a preferred embodiment, in the present utility model, the heat transfer plates 4 provided on both the front and rear sides of the housing 2 facilitate heat transfer to the second heat dissipation fans 41, with a large heat transfer area and more uniform and rapid heat dissipation.

[0031] In this embodiment, a left insulation protection structure 16 and a right insulation protection structure 13 are respectively sleeved on the left and right parts of the coil 10. The left insulation protection structure 16 and the right insulation protection structure 13 are symmetric about the center line of the iron core rod 1. An insulation sleeve 17 is arranged at the upper end of the iron core rod 1 and extends outside the upper through hole 22. An upper holding plate 12 is arranged at the upper part of the right insulation protection structure 13. An upper pressing plate 11 is arranged at the upper end of the upper holding plate 12, and the upper pressing plate 11 presses on the upper end of the coil 10. A lower holding plate 14 is arranged at the lower part of the right insulation protection structure 13. A lower pressing plate 15 is arranged at the lower end of the lower holding plate 14, and the lower pressing plate 15 presses on the lower end of the coil 10. The upper holding plate 12 and the lower holding plate 14 surround the right outer ring surface of the coil 10.

[0032] As a preferred embodiment, the coil 10 wound on the iron core rod 1 of the present invention is stably sleeved and tightened by the left insulation protection structure 16 and the right insulation protection structure 13, so that the coil 10 is not easy to loosen or be damaged, and the use is safer and more reliable.

[0033] In this embodiment, a plurality of groups of sleeve holes 30 are formed in the sleeve plate 3, and each group of sleeve holes 30 is sleeved outside the end of the iron core rod 1. The sleeve plate 3 is detachably connected to the iron core rod 1, the upper groove 27 and the lower groove 28.

[0034] As a preferred embodiment, the arrangement of the sleeve plate 3 in the present invention facilitates the installation of the iron core rod 1 to be stable, so that the upper and lower ends of the iron core rod 1 avoid direct contact with the shell of the iron core rod 1. The setting is safer and more reliable. At the same time, more space can be reserved to prevent the internal structure from being too compact to dissipate heat, and it is convenient for assembly or disassembly, which is safer and more practical.

[0035] The present invention can effectively solve the problems in the prior art that the flexible power distribution system of distributed power uses a large amount of current, the operation stability is easy to increase, the operation is unstable and a fire accident occurs, and there are certain potential safety hazards. The present invention is convenient for stably assembling the internal wound coil iron core rod structure to keep it safe and stable, so as to ensure the stable and reliable transmission of current, and it is also convenient for large-area heat transfer and ventilation to dissipate heat, so as to prevent the internal equipment from running at too high a stability, and the use is safer, more stable and reliable.

[0036] The above embodiments are used to explain the present invention, rather than limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claimed rights shall be included in the protection scope of the present invention.

Claims

1. A solid-state transformer for a flexible distribution system capable of accommodating distributed power sources, characterized in that: It includes an iron core rod (1), a housing (2) and a sleeve plate (3). Upper grooves (27) are provided at the upper parts of the left and right side walls inside the housing (2), and lower grooves (28) are provided at the lower parts of the left and right side walls inside the housing (2). A set of sleeve plates (3) are fitted between the two groups of upper grooves (27) and the two groups of lower grooves (28) that are aligned left and right. A plurality of iron core rods (1) are installed between the upper and lower sets of sleeve plates (3), and coils (10) are wound around the iron core rods (1).

2. The solid-state transformer of a flexible power distribution system with admissible distributed power sources according to claim 1, characterized in that, A bottom plate (20) is provided at the bottom of the housing (2). Support feet (29) are provided at the left and right parts of the lower end surface of the bottom plate (20). A top plate (21) is provided at the top of the housing (2). A plurality of upper through holes (22) are formed in the top plate (21), and side ventilation frames (23) are provided on both the left and right sides of the housing (2).

3. The solid-state transformer of a flexible power distribution system with an admissible distributed power source according to claim 2, characterized in that, A ventilation opening (24) is provided on the outer side of the side ventilation frame (23). A plurality of first cooling fans (25) are installed in the ventilation opening (24), and an outer protective mesh surface (26) is provided on the outer side of the ventilation opening (24).

4. The solid-state transformer of a flexible power distribution system capable of accommodating distributed power sources according to claim 1, characterized in that, Frame openings (200) are provided on both the front and rear side surfaces of the housing (2). A heat transfer plate (4) is installed in the frame openings (200). The rear side of the heat transfer plate (4) is closely attached to the outside of the coils (10) wound around the iron core rod (1). Heat dissipation fin groups (40) are provided on the front side of the heat transfer plate (4), and a plurality of second cooling fans (41) are installed in the middle of the heat dissipation fin groups (40).

5. The solid-state transformer of a flexible power distribution system capable of accommodating distributed power sources according to claim 1, characterized in that, Left and right insulating protection structures (16) and (13) are respectively sleeved on the left and right parts of the coil (10). The left insulating protection structure (16) and the right insulating protection structure (13) are symmetric about the center line of the iron core rod (1). An insulating sleeve (17) is provided at the upper end of the iron core rod (1), and the insulating sleeve (17) extends outside the upper through hole (22).

6. The solid-state transformer of a flexible power distribution system capable of accommodating distributed power sources according to claim 5, characterized in that An upper holding plate (12) is provided at the upper part of the right insulating protection structure (13). An upper pressing plate (11) is provided at the upper end of the upper holding plate (12), and the upper pressing plate (11) presses on the upper end of the coil (10). A lower holding plate (14) is provided at the lower part of the right insulating protection structure (13). A lower pressing plate (15) is provided at the lower end of the lower holding plate (14), and the lower pressing plate (15) presses on the lower end of the coil (10). The upper holding plate (12) and the lower holding plate (14) surround the outer ring surface on the right side of the coil (10).

7. The solid-state transformer of a flexible power distribution system with an admissible distributed power source according to claim 1, characterized in that, A plurality of sleeve holes (30) are formed in the sleeve plate (3). Each set of sleeve holes (30) is sleeved outside the end of the iron core rod (1). The sleeve plate (3) is detachably connected to the iron core rod (1), the upper groove (27), and the lower groove (28).

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