CN221573666U - Power transformer with anti-magnetic flux structure - Google Patents

Abstract

The utility model relates to the technical field of transformers, in particular to a power supply transformer with an anti-magnetic flux structure, which comprises an outer frame, wherein a wiring pile is fixedly connected to the top of the outer frame, a plurality of circulating pipes are respectively penetrated through the front side and the back side of the outer frame, a heat dissipation assembly is arranged in parallel on one side of the outer frame, a transformer assembly is movably connected to the bottom of the inner wall of the outer frame, a clamping plate is fixedly connected to the top of the transformer assembly, an iron core is attached to one side of the clamping plate, three groups of coils are attached to the surface of the iron core, the surfaces of the coils are attached to the inner wall of a glass fiber reinforced plastic shell, an outlet connector penetrates through the surface of the glass fiber reinforced plastic shell, and the improved power supply transformer with the anti-magnetic flux structure can reduce magnetic flux leakage and electromagnetic noise caused by the magnetic flux leakage by adding the glass fiber reinforced plastic shell; meanwhile, the cooling energy conservation of the transformer can be realized by adding the heat radiating component, the circulating pipe, the fan and the like, and the energy consumption required by cooling is reduced.

Description

Power transformer with anti-magnetic flux structure

Technical Field

The utility model relates to the technical field of transformers, in particular to a power transformer with an anti-magnetic flux structure.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core (magnetic core), and the main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like, because the working principle of the transformer is based on the law of electromagnetic induction, during the working process of the transformer, magnetic fluxes which are inconsistent with the main magnetic flux direction are generated due to the structure of a magnetic circuit winding and the change of winding current, and are called magnetic flux leakage.

The magnetic flux leakage inside the transformer is caused by the phenomenon that part of magnetic flux does not pass through a closed loop of the iron core but forms a closed loop in the air, so that the magnetic flux leakage not only reduces the efficiency of the transformer, but also can cause local overheating, mechanical vibration and noise, and the general method for eliminating the magnetic flux leakage comprises the modes of changing the structural design of the iron core and the coil, reducing the temperature and humidity influence of the iron core and the coil and the like; however, the existing anti-magnetic flux transformer is imperfect in anti-magnetic flux design, cannot jointly reduce magnetic flux leakage through various means, and cannot eliminate electromagnetic noise caused by magnetic flux leakage; meanwhile, when the structure for cooling and radiating is arranged, the energy-saving and environment-friendly radiating mechanism is not considered, so that the energy consumed by cooling and radiating is huge, and therefore, the power transformer with the anti-magnetic flux structure is provided.

The prior patent (publication number: CN 208796807U) discloses an antimagnetic power supply transformer, which comprises a framework and a winding coil wound on the framework, wherein the winding coil is arranged on the framework and is electrically connected with the end head of the winding coil, the framework comprises two framework baffles and a magnetic core tube arranged between the two framework baffles, two mutually parallel extension convex blocks are arranged on the framework baffles, the two extension convex blocks are arranged in the tangential direction of the magnetic core tube, opposite surfaces of the two extension convex blocks are provided with inward concave opposite notches, opposite surfaces of the two extension convex blocks are provided with a plurality of inward concave opposite notches, and the opposite notch opening area corresponds to the area occupied by the opposite notches. The antimagnetic power-on transformer has the advantages of simple structure, low cost, safety and reliability, and provides the magnetic flux elimination and winding protection from the inside, the outside and the windings of the magnetic core in an omnibearing manner by optimizing the skeleton and the magnetic core structure of the traditional power-on transformer and adding the insulating connection and supporting parts. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the existing design has imperfect magnetic flux prevention effect and cannot reduce electromagnetic noise; 2. the temperature control of the existing design is not perfect enough, and the energy-saving and heat-dissipating effects cannot be realized.

Disclosure of utility model

The utility model aims to provide a power transformer with an anti-magnetic flux structure, so as to solve the problems that the anti-magnetic flux effect is imperfect and energy-saving heat dissipation cannot be realized in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the power transformer with the anti-magnetic flux structure comprises an outer frame, wherein a wiring pile is fixedly connected to the top of the outer frame, a plurality of circulating pipes respectively penetrate through the front surface and the back surface of the outer frame, a heat dissipation assembly is arranged on one side of the outer frame in parallel, and a transformer assembly is movably connected to the bottom of the inner wall of the outer frame;

The transformer is characterized in that a clamping plate is fixedly connected to the top of the transformer assembly, an iron core is attached to one side of the clamping plate, three groups of coils are attached to the surface of the iron core, the surfaces of the coils are attached to the inner wall of the glass fiber reinforced plastic shell, and an outlet connector penetrates through the surface of the glass fiber reinforced plastic shell.

Further preferably, the top of the circulating pipe is fixedly connected with an oil return pipe, the bottom of the circulating pipe is fixedly connected with an oil inlet pipe, one end of the oil inlet pipe is movably connected with a circulating pump, and one end of the circulating pump forms a movable structure through the oil inlet pipe and the heat dissipation assembly.

Further preferably, the two ends of the heat dissipation component are respectively and fixedly connected with a ventilating board, the surface of the ventilating board is movably connected with two groups of fans, one side of the ventilating board is attached with a heat dissipation fin, and an integrated structure is formed between the heat dissipation component and the heat dissipation fin.

Further preferably, a movable structure is formed between the transformer assembly and the bottom of the inner wall of the outer frame.

Further preferably, the coils are divided into an upper section and a lower section which are wound on the surface of the iron core, and a parallel symmetrical structure is formed between the coils at the upper end and the lower end.

Further preferably, the size of the coil is consistent with the size of the inner wall of the glass fiber reinforced plastic shell.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, by adding the glass fiber reinforced plastic shell, the glass fiber reinforced plastic is a very light, high-strength and corrosion-resistant composite material, has excellent electrical insulation property and fireproof property, can realize the effect of eliminating magnetic flux, and can reduce electromagnetic noise generated by magnetic flux leakage to a certain extent; meanwhile, a sectional winding mode of the coil is adopted, so that magnetic flux leakage is further reduced.

According to the utility model, by adding the heat radiating component, the fan, the circulating pump, the circulating pipe and the like, only the circulating pump is started during normal cooling to enable cooling oil in the circulating pipe to circulate and flow for cooling, when the temperature exceeds a set value, the fan is automatically started to accelerate the cooling effect of the heat radiating component, and when the temperature falls back into a normal range, the fan is automatically stopped, so that the fan and the cooling component are selectively started to realize energy conservation of temperature control of the transformer.

Drawings

FIG. 1 is a schematic diagram of an axial structure of the present utility model;

FIG. 2 is a schematic diagram of the front view of the present utility model in full section;

FIG. 3 is a schematic view of a partial enlarged structure of a transformer assembly according to the present utility model;

FIG. 4 is a schematic diagram of the right-side view of the present utility model;

fig. 5 is a schematic view of a partial enlarged structure of a heat dissipating assembly according to the present utility model.

In the figure: 1. an outer frame; 2. wiring piles; 3. a circulation pipe; 301. an oil return pipe; 302. an oil inlet pipe; 303. a circulation pump; 4. a heat dissipation assembly; 401. a ventilation board; 402. a fan; 403. a heat sink; 5. a transformer assembly; 501. a clamping plate; 502. an iron core; 503. a coil; 504. a glass fiber reinforced plastic shell; 505. and the outlet connector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution: the power transformer with the anti-magnetic flux structure comprises an outer frame 1, wherein a wiring pile 2 is fixedly connected to the top of the outer frame 1, a plurality of circulating pipes 3 respectively penetrate through the front surface and the back surface of the outer frame 1, a heat dissipation assembly 4 is arranged on one side of the outer frame 1 in parallel, and a transformer assembly 5 is movably connected to the bottom of the inner wall of the outer frame 1;

The top fixedly connected with splint 501 of transformer subassembly 5, the laminating of one side of splint 501 has iron core 502, and the surface laminating of iron core 502 has three coil 503 of group, and coil 503 surface laminating is in the inner wall of glass steel shell 504, and glass steel shell 504's surface runs through and has outlet connection 505.

In this embodiment, as shown in fig. 1, 2 and 5, the top of the circulation pipe 3 is fixedly connected with an oil return pipe 301, the bottom of the circulation pipe 3 is fixedly connected with an oil inlet pipe 302, one end of the oil inlet pipe 302 is movably connected with a circulation pump 303, one end of the circulation pump 303 forms a movable structure with the heat dissipation assembly 4 through the oil inlet pipe 302, and the structure can realize that cooling oil in the circulation pipe 3 completes circulation cooling, and reduce the internal temperature and the surface temperature of the outer frame 1.

In this embodiment, as shown in fig. 1, 2 and 5, two ends of the heat dissipation component 4 are fixedly connected with a ventilation board 401 respectively, two groups of fans 402 are movably connected to the surface of the ventilation board 401, one side of the ventilation board 401 is attached with a heat dissipation fin 403, and an integrated structure is formed between the heat dissipation component 4 and the heat dissipation fin 403.

In this embodiment, as shown in fig. 2, 3 and 4, a movable structure is formed between the transformer assembly 5 and the bottom of the inner wall of the outer frame 1, and this structure can realize separation or combination between the transformer assembly 5 and the outer frame 1, so as to facilitate installation and maintenance of the device.

In this embodiment, as shown in fig. 2 and 4, the coil 503 is divided into two sections, i.e. upper and lower sections, wound on the surface of the iron core 502, and the coils 503 at the upper and lower ends form a parallel symmetrical structure, and this structure can further reduce the leakage of magnetic flux by the sectional manner of the windings of the coils 503.

In this embodiment, as shown in fig. 2, 3 and 4, the size of the coil 503 is consistent with the size of the inner wall of the glass fiber reinforced plastic housing 504, and this structure can completely wrap the coil 503, eliminate magnetic flux and reduce electromagnetic noise generated by leakage of magnetic flux.

The application method and the advantages of the utility model are as follows: the power transformer with the anti-magnetic flux structure has the following working process when in use:

As shown in fig. 1, 2, 3, 4 and 5, firstly, the glass fiber reinforced plastic housing 504 is installed on the outer wall of the coil 503, the glass fiber reinforced plastic is a very light, high-strength and corrosion-resistant composite material, and has excellent electrical insulation and fireproof characteristics, and by adding the insulating glass fiber reinforced plastic housing 504, the device has the effect of eliminating magnetic flux, and electromagnetic noise caused by magnetic flux leakage can be reduced to a certain extent; meanwhile, the coil 503 adopts a sectional winding and cross arrangement method, so that the leakage of magnetic flux is further reduced; in addition, the outer frame 1 is added outside the transformer assembly 5, so that a leakage magnetic field can be bound inside, but the outer frame 1 generates heat at the moment, so that a certain distance exists between the outer frame 1 and the transformer assembly 5, and meanwhile, the surface of the outer frame 1 is penetrated with the plurality of circulating pipes 3; when the cooling oil circulation device is used, the circulation pump 303 can pump cooling oil out of the heat dissipation assembly 4 through the oil inlet pipe 302, pour the cooling oil into the circulation pipe 3, pump the cooling oil into the oil return pipe 301 through the other end of the circulation pipe 3, and then enter the heat dissipation assembly 4 through the oil return pipe 301 to complete cooling circulation of the cooling oil; in the daily cooling process, the fan 402 on the heat dissipation assembly 4 is not started, but when the temperature of the device is too high to exceed a specified value, the fan 402 on the heat dissipation assembly 4 can be automatically started, the cooling efficiency of the heat dissipation assembly 4 to cooling oil is increased, the cooling time of the cooling oil is reduced, and when the temperature of the transformer assembly 5 falls back into a normal range, the fan 402 is automatically closed, so that energy-saving cooling is realized.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. Power transformer with antimagnetic structure, including frame (1), its characterized in that: the transformer is characterized in that the top of the outer frame (1) is fixedly connected with a wiring pile (2), the front and the back of the outer frame (1) are respectively penetrated with a plurality of circulating pipes (3), one side of the outer frame (1) is provided with a heat dissipation assembly (4) in parallel, and the bottom of the inner wall of the outer frame (1) is movably connected with a transformer assembly (5);

The transformer is characterized in that a clamping plate (501) is fixedly connected to the top of the transformer assembly (5), an iron core (502) is attached to one side of the clamping plate (501), three groups of coils (503) are attached to the surface of the iron core (502), the surfaces of the coils (503) are attached to the inner wall of a glass fiber reinforced plastic shell (504), and a wire outlet connector (505) penetrates through the surface of the glass fiber reinforced plastic shell (504).

2. The power transformer with anti-flux structure according to claim 1, wherein: the top fixedly connected with of circulating pipe (3) returns oil pipe (301), the bottom fixedly connected with of circulating pipe (3) advances oil pipe (302), the one end swing joint that advances oil pipe (302) has circulating pump (303), the one end of circulating pump (303) constitutes the movable structure through advancing between oil pipe (302) and radiator unit (4).

3. The power transformer with anti-flux structure according to claim 1, wherein: the two ends of the radiating component (4) are respectively fixedly connected with a ventilating plate (401), the surfaces of the ventilating plates (401) are movably connected with two groups of fans (402), radiating fins (403) are attached to one side of each ventilating plate (401), and an integrated structure is formed between the radiating component (4) and each radiating fin (403).

4. The power transformer with anti-flux structure according to claim 1, wherein: a movable structure is formed between the transformer assembly (5) and the bottom of the inner wall of the outer frame (1).

5. The power transformer with anti-flux structure according to claim 1, wherein: the coil (503) is divided into an upper section and a lower section which are wound on the surface of the iron core (502), and the coils (503) at the upper end and the lower end form a parallel symmetrical structure.

6. The power transformer with anti-flux structure according to claim 1, wherein: the size of the coil (503) is consistent with the size of the inner wall of the glass fiber reinforced plastic shell (504).