A type of charging column box transformer

Abstract

This utility model relates to a charging pole transformer substation. The technical problem this utility model aims to solve is to provide a charging pole transformer substation. The technical solution adopted by this utility model includes a transformer substation frame, a transformer substation door assembly, and a transformer substation rainproof top cover. The transformer substation frame includes a load-bearing beam assembly and supporting crossbeams. The load-bearing beam assembly includes a load-bearing beam, a load-bearing beam end cap, and a main connecting pin for the crossbeam. The load-bearing beam includes a rounded transition portion and a connecting portion. The connecting end of the load-bearing beam is provided with a T-shaped interface, and the inner and outer sides of the load-bearing beam are provided with T-shaped limiting ports. The advantages of this utility model are: the transformer substation frame is connected by a rounded transition of the load-bearing beam, reducing stress concentration and improving bending resistance and seismic performance; the load-bearing beam end cap and the crossbeam are fixed together by three-point screws through the connecting pin connection hole, the crossbeam threaded hole, and the end cap connection hole, forming a multi-point locking structure, resulting in a stable connection, high strength, and resistance to loosening.

Description

Technical Field

[0001] This utility model relates to a charging post box transformer. Background Technology

[0002] With the rapid popularization of new energy vehicles and electric transportation tools, the demand for charging infrastructure in urban and rural areas is constantly growing. As the terminal equipment in the electric vehicle charging system, the widespread deployment and high-frequency use of charging piles have placed higher demands on power supply safety, structural strength, and installation adaptability. In practical applications, to ensure the stable operation of charging piles and realize regional power supply management and protection, small box-type substations (i.e., "charging pile box-type substations") are usually installed. Their main functions are: to connect to the mains power through the box-type substation, to perform voltage conversion, overload protection, short circuit isolation, etc., and to provide safe and stable power output to the charging terminals. Currently, the charging pile box-type substations widely used in the market have the following technical problems: 1. Insufficient structural strength and simple connection method: Traditional box-type substation frame structures mostly adopt straight rectangular tube assembly, and the beams and columns are connected by a single bolt or a simple plug-in structure combination. The bending strength is low and the connection rigidity is poor. In long-term outdoor use, they are prone to loosening or even structural deformation due to wind load, vibration, etc. 2. Poor positioning accuracy and high assembly difficulty: Due to the lack of clear limiting or docking guide structures, misalignment and skewness are prone to occur during crossbeam installation, affecting the verticality and stability of the overall frame and increasing installation labor costs. Therefore, there is an urgent need to provide a charging column substation frame structure that is structurally stable, efficiently assembled, highly adaptable, and possesses seismic and fatigue resistance to solve the above problems and improve the overall safety and durability of the substation system. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a charging post transformer.

[0004] The technical solution adopted by this utility model charging column transformer box includes a transformer box frame, a transformer box cabinet door assembly provided on the transformer box frame, and a transformer box rainproof top cover provided on the transformer box frame. The transformer box frame includes a longitudinally arranged load-bearing beam assembly and a transversely arranged support beam. The load-bearing beam assembly includes a load-bearing beam, load-bearing beam end caps fixed to the upper and lower end faces of the load-bearing beam, and a main connecting pin for the crossbeam. The load-bearing beam includes a circular arc transition portion and load-bearing beam docking portions provided at both ends of the circular arc transition portion. The docking end of the load-bearing beam docking portion is provided with a longitudinally arranged T-shaped interface for the load-bearing beam. The inner and outer sides of the load-bearing beam docking portion are provided with longitudinally arranged T-shaped limiting openings for the load-bearing beam. The circular arc transition portion of the load-bearing beam is provided with a longitudinally arranged clearance opening for the load-bearing beam. The inner wall of the T-shaped interface for the load-bearing beam is provided with a transversely arranged load-bearing beam connecting hole that communicates with the clearance opening of the load-bearing beam.

[0005] The supporting beam has a square cross-section, with T-shaped limiting openings on all four ends. The two ends of the middle section of the supporting beam extend laterally to form a T-shaped docking portion of the beam placed within the T-shaped interface of the bearing beam. The T-shaped docking portion of the beam has a first mounting hole for the beam arranged laterally and a threaded hole for the beam arranged longitudinally. The main connecting pin of the beam has a connecting pin docking hole. The main connecting pin of the beam passes laterally through the connecting hole of the bearing beam and the first mounting hole of the beam. The bearing beam end cap includes an arc-shaped end cap covering the upper and lower end faces of the bearing beam. The two ends of the arc-shaped end cap have end cap reinforcing blocks placed within the T-shaped interface of the bearing beam and fitted to the upper part of the T-shaped docking portion of the beam. The end cap reinforcing blocks have end cap connecting holes. The end cap connecting holes, the threaded holes of the beam, and the connecting pin docking holes are connected by screws.

[0006] The transformer substation frame also includes reinforcing pins, and the bearing beam end cap also includes end cap reinforcement parts provided at both ends of the arc portion of the end cap. The end cap reinforcement parts are provided with transversely arranged end cap reinforcement holes. The two ends of the supporting crossbeam are provided with crossbeam reinforcement holes that are perpendicular to the first mounting hole of the crossbeam and the threaded hole of the crossbeam, respectively. The end cap reinforcement parts are placed in the crossbeam T-shaped limiting opening on the upper end face of the supporting crossbeam. The reinforcing pins connect the crossbeam reinforcement holes and the end cap reinforcement holes together.

[0007] The back of the arc-shaped portion of the end cap is provided with an end cap positioning protrusion that is placed inside the T-shaped limiting opening of the bearing beam.

[0008] The main connecting pin of the crossbeam includes a connecting pin stop for positioning and a connecting pin body for connecting and passing through, and the connecting pin body is provided with a connecting pin mating hole.

[0009] The advantages of this utility model charging post transformer are as follows: The transformer frame is connected by a circular arc transition of the load-bearing beam. The circular arc structure makes the surface smoother, reduces stress concentration, and improves bending resistance and seismic performance. The load-bearing beam end cap and the crossbeam are fixed together by three screws through the connecting pin mating hole, the crossbeam threaded hole, and the end cap connecting hole, forming a multi-point locking structure. The connection is stable, strong, and not easy to loosen. The support crossbeam is inserted into the load-bearing beam T-shaped mating part through the crossbeam T-shaped mating part, forming a stable interlocking structure, which further enhances the overall frame connection rigidity and resistance to lateral forces. Reinforcing pins are provided, forming a double connection path between the end cap and the crossbeam through the crossbeam reinforcement hole and the end cap reinforcement hole. Even under long-term wind and rain vibration conditions, it can still maintain high connection stability and effectively avoid structural loosening or deformation. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1This is a schematic diagram of the structure of the charging column transformer of this utility model;

[0012] Figure 2 This is a structural schematic diagram of the box-type transformer frame of this utility model;

[0013] Figure 3 yes Figure 2 Enlarged image;

[0014] Figure 4 This is a structural schematic diagram of the load-bearing beam of this utility model;

[0015] Figure 5 yes Figure 4 Enlarged image;

[0016] Figure 6 This is a schematic diagram of the structure of the supporting beam of this utility model;

[0017] Figure 7 yes Figure 6 Enlarged image;

[0018] Figure 8 This is an exploded view of the load-bearing beam assembly of this utility model;

[0019] Figure 9 This is a structural schematic diagram of the load-bearing beam end cap of this utility model;

[0020] Figure 10 This is a structural schematic diagram of the main connecting pin of the crossbeam of this utility model. Detailed Implementation

[0021] like Figure 1-10As shown, the charging pole transformer of this utility model includes a transformer frame 1, a transformer cabinet door assembly 2 mounted on the transformer frame 1, and a transformer rainproof top cover 3 mounted on the transformer frame 1. The transformer frame 1 includes a longitudinally arranged load-bearing beam assembly 5 and a transversely arranged support beam 6. The load-bearing beam assembly 5 includes a load-bearing beam 8, load-bearing beam end caps 9 fixed to the upper and lower end faces of the load-bearing beam 8, and a main connecting pin 10 for the crossbeam. The load-bearing beam 8 includes a load-bearing beam arc transition portion 11 and load-bearing beam butt joint portions 12 disposed at both ends of the load-bearing beam arc transition portion 11. The load-bearing beam 8 not only has a smooth and continuous structure, but also avoids the common stress concentration problem of 90° right-angle connection, thus improving the bending resistance of the load-bearing beam. To improve the overall fatigue resistance of the structure, the bearing beam docking part 12 is provided with a longitudinally arranged bearing beam T-shaped mating interface 14 at the docking end, and longitudinally arranged bearing beam T-shaped limiting openings 15 on the inner and outer sides of the bearing beam docking part 12. The bearing beam arc transition part 11 is provided with a longitudinally arranged bearing beam clearance opening 17. The inner wall of the bearing beam T-shaped mating interface 14 is provided with a transversely arranged bearing beam connecting hole 18 that communicates with the bearing beam clearance opening 17. The cross-section of the supporting beam 6 is a square structure, and each of its four end faces is provided with a beam T-shaped limiting opening 21, which can achieve high-precision connection and positioning in any direction, improving the flexibility and interchangeability of the overall component assembly. The two ends of the middle part of the supporting beam 6 extend laterally to form a structure placed on the bearing beam. The crossbeam T-shaped mating part 22 within the load-bearing beam T-shaped mating interface 14 has a transversely arranged first crossbeam mounting hole 23 and a longitudinally arranged crossbeam threaded hole 24. The crossbeam main connecting pin 10 has a connecting pin mating hole 31, which transversely passes through the load-bearing beam connecting hole 18 and the first crossbeam mounting hole 23. The load-bearing beam end cap 9 includes an end cap arc portion 26 covering the upper and lower end faces of the load-bearing beam 8. The back ends of the end cap arc portion 26 have end cap reinforcing blocks 28 positioned within the load-bearing beam T-shaped mating interface 14 and fitted to the upper part of the crossbeam T-shaped mating part 22. The end cap reinforcing blocks 28 have end cap connecting holes 30. The end cap connecting hole 30, the crossbeam threaded hole 24, and the connecting pin docking hole 31 are connected by screws. The bearing beam docking end is provided with a bearing beam T-shaped mating interface 14 and a bearing beam T-shaped limiting port 15, so that the supporting crossbeam can not only achieve precise positioning after insertion, but also effectively prevent axial displacement under vibration conditions, and improve the ability to resist lateral impact. The bearing beam end cap 9 and the crossbeam are fixed together by three screws through the connecting pin docking hole, the crossbeam threaded hole, and the end cap connecting hole, forming a multi-point locking structure, which is stable, strong, and not easy to loosen. The supporting crossbeam 6 is inserted into the bearing beam T-shaped mating interface 14 through the crossbeam T-shaped docking part 22 to form a stable interlocking structure, further enhancing the overall frame connection rigidity and resistance to lateral forces.

[0022] The transformer substation frame 1 also includes reinforcing pins 7, and the bearing beam end cap 9 also includes end cap reinforcement parts 27 provided at both ends of the end cap arc portion 26. The end cap reinforcement parts 27 are provided with transversely arranged end cap reinforcement holes 33. The two ends of the supporting crossbeam 6 are provided with crossbeam reinforcement holes 34 respectively perpendicular to the first mounting hole 23 of the crossbeam and the threaded hole 24 of the crossbeam. The end cap reinforcement parts 27 are placed in the crossbeam T-shaped limiting port 21 on the upper end face of the supporting crossbeam 6. The reinforcing pins 7 connect the crossbeam reinforcement holes 34 and the end cap reinforcement holes 33 together, forming a double connection path between the end cap and the crossbeam through the crossbeam reinforcement holes 34 and the end cap reinforcement holes 33. Under long-term wind and rain vibration conditions, it can still maintain high connection stability and effectively avoid structural loosening or deformation.

[0023] The end cap arc portion 26 has an end cap positioning protrusion 29 on its back, which is placed inside the T-shaped limiting opening 15 of the bearing beam to form a fitting positioning, ensuring that the end cap will not shift during the force process, and further improving the frame connection accuracy.

[0024] The main connecting pin 10 of the crossbeam includes a connecting pin stop 36 for positioning and a connecting pin body 37 for connecting and passing through. The connecting pin body 37 is provided with a connecting pin mating hole 31, which facilitates disassembly and maintenance in the later stage and improves the convenience of assembly and maintenance.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A charging pole transformer substation, comprising a transformer substation frame (1), a transformer substation cabinet door assembly (2) disposed on the transformer substation frame (1), and a transformer substation rainproof top cover (3) disposed on the transformer substation frame (1), characterized in that: The transformer substation frame (1) includes a longitudinally arranged load-bearing beam assembly (5) and a transversely arranged support beam (6). The load-bearing beam assembly (5) includes a load-bearing beam (8), a load-bearing beam end cap (9) fixed to the upper and lower end faces of the load-bearing beam (8), and a main connecting pin (10) for the crossbeam. The load-bearing beam (8) includes a load-bearing beam arc transition part (11) and load-bearing beam docking parts (12) provided at both ends of the load-bearing beam arc transition part (11). The docking end of the load-bearing beam docking part (12) is provided with a longitudinally arranged load-bearing beam T-shaped interface (14). The inner and outer sides of the load-bearing beam docking part (12) are provided with a longitudinally arranged load-bearing beam T-shaped limiting port (15). The load-bearing beam arc transition part (11) is provided with a longitudinally arranged load-bearing beam clearance port (17). The inner wall of the load-bearing beam T-shaped interface (14) is provided with a transversely arranged load-bearing beam connecting hole (18) that communicates with the load-bearing beam clearance port (17). The cross-section of the supporting beam (6) is square, and each of its four end faces is provided with a beam T-shaped limiting port (21). The two ends of the middle part of the supporting beam (6) extend laterally to form a beam T-shaped docking part (22) placed in the bearing beam T-shaped docking interface (14). The beam T-shaped docking part (22) is provided with a beam first mounting hole (23) arranged laterally and a beam threaded hole (24) arranged longitudinally. The main connecting pin (10) of the beam is provided with a connecting pin docking hole (31). The main connecting pin (10) of the beam passes laterally through the bearing beam connecting hole (14). 8) and the first mounting hole (23) of the crossbeam, the bearing beam end cap (9) includes an end cap arc portion (26) covering the upper and lower end surfaces of the bearing beam (8), and the two ends of the back of the end cap arc portion (26) are provided with end cap reinforcing blocks (28) placed in the bearing beam T-shaped interface (14) and attached to the upper part of the crossbeam T-shaped docking portion (22), and the end cap reinforcing block (28) is provided with an end cap connecting hole (30), and the end cap connecting hole (30), the crossbeam threaded hole (24) and the connecting pin docking hole (31) are connected by screws.

2. The charging post transformer according to claim 1, characterized in that: The transformer substation frame (1) also includes a reinforcing pin (7), and the bearing beam end cap (9) also includes end cap reinforcement parts (27) provided at both ends of the end cap arc portion (26). The end cap reinforcement part (27) is provided with a horizontally arranged end cap reinforcement hole (33). The two ends of the supporting beam (6) are provided with beam reinforcement holes (34) respectively perpendicular to the first mounting hole (23) of the beam and the threaded hole (24) of the beam. The end cap reinforcement part (27) is placed in the beam T-shaped limiting port (21) on the upper end face of the supporting beam (6). The reinforcing pin (7) connects the beam reinforcement hole (34) and the end cap reinforcement hole (33) together.

3. The charging post transformer according to claim 1, characterized in that: The back of the arc portion (26) of the end cap is provided with an end cap positioning protrusion (29) placed inside the T-shaped limiting opening (15) of the bearing beam.

4. The charging post transformer according to claim 1, characterized in that: The main connecting pin (10) of the crossbeam includes a connecting pin stop (36) for positioning and a connecting pin body (37) for connecting and passing through, and the connecting pin body (37) is provided with the connecting pin docking hole (31).

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