CN112382466B

CN112382466B - High-power transformer with efficient heat dissipation function

Info

Publication number: CN112382466B
Application number: CN202011148085.XA
Authority: CN
Inventors: 马建腾; 刘培欣; 黄银斌; 姚爽; 周芳; 郑炜
Original assignee: Tianjin Huaneng Transformer Co ltd
Current assignee: Tianjin Huaneng Transformer Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2022-04-15
Anticipated expiration: 2040-10-23
Also published as: CN112382466A

Abstract

The invention relates to a high-efficiency heat-dissipation high-power transformer, which belongs to the technical field of transformers and comprises two fixing frames, iron cores, primary coils and secondary coils, wherein the two fixing frames are arranged, the iron cores are of rectangular annular structures, the fixing frames are respectively and fixedly connected with the top end and the bottom end of each iron core, the primary coils are sleeved on one side of each iron core, the secondary coils are sleeved on the other side of each iron core, the primary coils and the secondary coils are symmetrical, each iron core comprises a plurality of iron sheets, all the iron sheets are divided into a plurality of groups, a connecting frame is arranged between each group of iron sheets and the fixing frame, the connecting frames are fixedly connected with the iron sheets and the fixing frames, gaps exist between the connecting frames positioned on the same fixing frame, and an air supply assembly is fixedly connected below each iron core.

Description

High-power transformer with efficient heat dissipation function

Technical Field

The invention relates to the technical field of transformers, in particular to a high-efficiency heat-dissipation high-power transformer.

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core. The main functions are as follows: the transformer can generate a large amount of heat in the use process, if the heat is not dissipated timely, the damage of a coil in the transformer can be caused, the normal use of the transformer is influenced, and even a local electric paralysis accident occurs.

Referring to fig. 1, a transformer in the prior art includes an iron core 2, a primary coil 21 and a secondary coil 22, the iron core 2 is a rectangular ring structure, the primary coil 21 and the secondary coil 22 are symmetrically wound on the circumferential outer wall of the iron core 2, the outer walls of the iron core 2, the primary coil 21 and the secondary coil 22 are wrapped by a casing, and the outer wall of the casing is fixedly connected with a heat sink. When the transformer is used, the primary coil 21 is communicated with alternating current, and electromagnetic induction is generated between the primary coil 21 and the secondary coil 22, so that the effect of voltage transformation is achieved.

The above prior art solutions have the following drawbacks: the transformer can produce a large amount of heats in the use, and among the prior art scheme, the transformer adopts the fin to dispel the heat, and the radiating rate of fin is slow, and the radiating effect is not obvious when using high-power transformer, can not in time dispel the heat and probably lead to the coil to damage, influences the normal use of transformer, causes electric power paralysis accident even.

Disclosure of Invention

The invention aims to provide a high-efficiency heat-dissipation high-power transformer, which can quickly and effectively dissipate heat generated in the use process of the high-power transformer, so as to achieve the effects of quickly dissipating heat and ensuring the stable operation of the transformer.

The above object of the present invention is achieved by the following technical solutions: a high-efficiency heat-dissipation high-power transformer comprises a fixed frame, two iron cores, a primary coil and a secondary coil, wherein the iron cores are of a rectangular annular structure, the fixed frame is fixedly connected with the top end and the bottom end of each iron core respectively, the primary coil is sleeved on one side of each iron core, the secondary coil is sleeved on the other side of each iron core, the primary coil and the secondary coil are symmetrical, each iron core comprises a plurality of iron sheets, all the iron sheets are divided into a plurality of groups, a connecting frame is arranged between each group of iron sheets and the fixed frame, the connecting frame is fixedly connected with the iron sheets and the fixed frame, a gap is formed between the connecting frames of the same fixed frame, the fixed frame below the iron cores is fixedly connected with an air supply assembly, a sliding assembly is arranged between the fixed frame and the connecting frame, the sliding assembly comprises a sliding block and a connecting rod, the sliding block and the connecting frame are fixedly connected by the connecting rod, the bottom of the fixed frame is provided with a sliding groove, the connecting rod penetrates through the sliding groove and is connected in the sliding manner, an adjusting component for adjusting the distance between the connections is arranged between the connecting rods.

Through adopting above-mentioned technical scheme, during the use, primary coil switch-on alternating current, produce electromagnetic induction between primary coil and the secondary coil, thereby reach the effect of regulating voltage, the heat that produces distributes out the transformer from the space between each group's iron sheet in the transformer use, the setting of air supply subassembly has increased the circulation of air between each group's iron sheet of iron core simultaneously, the radiating efficiency of transformer has been increased, quick heat dissipation has been reached, promote the connecting rod in addition, the connecting rod slides in the spout, realize adjusting the distance between the adjacent connecting rod, realize adjusting the distance between each group's iron sheet, when the capacity of transformer is great and work efficiency is higher, adjust the distance between every group's iron core, realize regulating transformer's radiating efficiency, guarantee transformer job stabilization's effect.

The invention is further configured to: the air supply assembly comprises a plurality of fans and connecting bolts, the number of the fans is equal to the sum of the primary coils and the secondary coils, the connecting bolts are fixedly connected with the fans and the fixing frame, and air outlets of the fans face the primary coils and the secondary coils respectively.

Through adopting above-mentioned technical scheme, the fan is provided with a plurality ofly and is located primary and secondary coil's bottom respectively, and when primary and secondary coil produced electromagnetic induction, the heat that produces has increased thermal speed of giving off under the effect of fan, has increased cold air circulation's speed, has reached quick heat dissipation, guarantees transformer job stabilization's effect.

The invention is further configured to: the adjusting component comprises a sleeve, a sleeve rod and a fixing bolt, the sleeve and the sleeve rod are respectively and fixedly connected to the adjacent side walls of the connecting rods, the sleeve rod is sleeved in the sleeve in a sliding mode, the fixing bolt penetrates through the outer wall of the sleeve and abuts against the outer wall of the sleeve rod, and the fixing bolt is in threaded connection with the sleeve.

Through adopting above-mentioned technical scheme, during the use, adjust the length of loop bar grafting in the cover pipe and realize adjusting the distance between the adjacent connecting rod, after the regulation is accomplished, rotate fixing bolt, fixing bolt butt loop bar guarantees the relative position between the adjacent connecting rod, guarantees the radiating effect.

The invention is further configured to: the air outlet of the fan is fixedly connected with a dust removal net.

Through adopting above-mentioned technical scheme, the setting up of dust removal net prevents that the cold air that blows out in the fan from having a large amount of dust, reduces the adhesion at the dust of iron core, primary and secondary coil outer wall, guarantees the radiating effect of transformer to guarantee the transformer steady operation.

The invention is further configured to: the outer walls of the primary coil and the secondary coil are respectively sleeved with a shell, and the shells are fixedly connected with the fixing frame.

Through adopting above-mentioned technical scheme, the setting of casing has reached the effect of guaranteeing primary coil and secondary coil safety, reduces the harm of service environment to primary coil and secondary coil in the use, has reached the effect of guaranteeing transformer job stabilization.

The invention is further configured to: the top and the bottom of casing have all been seted up the ventilation hole.

Through adopting above-mentioned technical scheme, the setting up of ventilation hole has guaranteed the air permeability of casing, guarantees the air volume through primary and secondary coil, has guaranteed the radiating efficiency, has guaranteed transformer job stabilization's effect simultaneously.

The invention is further configured to: the connecting frame is of a U-shaped plate structure and is made of an insulating material.

Through adopting above-mentioned technical scheme, the carriage of U type plate structure makes things convenient for the staff to place the iron core in the carriage, and the carriage that insulating material made simultaneously can not cause the influence to the work of iron core, has guaranteed the normal work of transformer.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the connecting frames are fixedly connected with the iron cores and the fixing frames which are divided into a plurality of groups, gaps exist among the connecting frames, gaps exist among adjacent iron sheets of each group, the circulation of cold air is increased, the heat dissipation rate is improved, the distance among the iron cores of each group is adjusted by pushing the connecting rods, the heat dissipation efficiency of the transformer is adjusted, and the effect of normal and stable work of the transformer is ensured;

2. the arrangement of the air supply assembly achieves the effect of increasing the cold air circulation, and the cold energy generated when the primary coil and the secondary coil generate electromagnetic induction can be discharged in time, so that the effect of ensuring the normal work of the transformer is achieved;

3. the dust removal net is arranged to reduce impurities mixed in cold air blown by the fan, dust adhered to the primary coil, the secondary coil and the iron core is reduced, the heat dissipation effect of the transformer is guaranteed, and the transformer can normally work.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a transformer in the prior art;

FIG. 2 is a schematic view of the overall structure of the present embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 4 is a partial schematic view of the primary coil;

fig. 5 is a schematic view showing a part of the air blowing assembly.

In the figure, 1, a fixed frame; 11. a chute; 2. an iron core; 21. a primary coil; 22. a secondary coil; 23. iron sheets; 3. a connecting frame; 4. an air supply assembly; 41. a fan; 42. a connecting bolt; 5. a slipping component; 51. a slider; 52. a connecting rod; 6. an adjustment assembly; 61. a sleeve; 62. a loop bar; 63. fixing the bolt; 7. a dust removal net; 8. a housing; 81. a vent hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 4, for the high-power transformer with high efficiency heat dissipation disclosed by the invention, the transformer comprises a fixed frame 1, two iron cores 2, a primary coil 21 and a secondary coil 22, wherein the fixed frame 1 is provided with two iron cores 2, the iron cores 2 are in a rectangular ring structure, the fixed frame 1 is respectively and fixedly connected with the upper end and the lower end of the iron cores 2, the primary coil 21 is sleeved on one side of the iron cores 2, the secondary coil 22 is sleeved on the other side of the fixed frame 1, the primary coil 21 is symmetrical to the secondary coil 22, the iron cores 2 are composed of a plurality of iron sheets 23, all the iron sheets 23 are divided into a plurality of groups, the number of the iron sheets 23 in each group is the same, in the embodiment, the iron cores 2 are divided into seven groups, a connecting frame 3 is arranged between each group of iron sheets 23 and the fixed frame 1, the connecting frame 3 is in a U-shaped plate structure, and the connecting frame 3 is made of insulating material, the epoxy resin is adopted in the utility model as a raw material, the connecting frame 3 is fixedly connected with each group of iron sheets 23, an air supply component 4 is connected below the fixed frame 1 at the bottom end of the iron core 2, a sliding component 5 for adjusting the distance between the adjacent connecting frames 3 is arranged between the connecting frames 3 and the fixed frame 1, an adjusting component 6 for fixing the distance between the adjacent sliding components 5 is arranged between the adjacent sliding components 5, when in use, the primary coil 21 is switched on by alternating current, the primary coil 21 and the secondary coil 22 generate induced electromotive force, the transformation of the induced electromotive force realizes the transformation of voltage, when the primary coil 21 and the secondary coil 22 generate electromagnetic induction, a large amount of heat is generated, the distance between the connecting frames 3 can ensure that cold air passes through the iron sheets 23 of each group, the heat dissipation rate is improved, meanwhile, the iron core 2 is divided into a plurality of groups which can reduce the eddy current of the iron core 2 and reduce the energy loss, and meanwhile, the arrangement of the air supply assembly 4 can increase the circulation of cold air, so that the effect of increasing the heat dissipation rate to ensure the normal and stable work of the transformer is achieved.

Referring to fig. 2 and 5, the air supply assembly 4 includes a plurality of fans 41 and a plurality of connecting bolts 42, the number of the fans 41 is equal to the sum of the number of the primary coils 21 and the number of the secondary coils 22, the connecting bolts 42 fixedly connect the fans 41 and the fixing frame 1, the air outlets of the fans 41 respectively face the primary coils 21 and the secondary coils 22, and the arrangement of the air supply assembly 4 increases the circulation rate of the cool air, thereby achieving the effect of ensuring the stable operation of the transformer.

Referring to fig. 5, the air outlet of the fan 41 is fixedly connected with a dust removal net 7, and the dust removal net 7 can filter dust passing through the fan 41, so that the dust is prevented from being attached to the outer walls of the iron core 2, the primary coil 21 and the secondary coil 22, and the heat dissipation effect of the transformer is ensured.

Subassembly 5 slides includes slider 51 and connecting rod 52, spout 11 has been seted up to fixed frame 1, connecting rod 52 runs through spout 11 fixed connection slider 51 and connection frame 3, when the maximum power difference of transformer, iron core 2's iron sheet 23 quantity is different, the setting of subassembly 5 that slides can make things convenient for the staff to adjust the distance between the adjacent connection frame 3 according to how much of iron sheet 23 quantity, when the power of transformer is great, the distance between the adjacent connection frame 3 is big more, the distance is big more between the connection frame 3, the radiating effect of transformer is better.

Referring to fig. 3, the adjusting assembly 6 includes a sleeve 61, a loop bar 62 and a fixing bolt 63, the sleeve 61 and the loop bar 62 are respectively and fixedly connected to the side walls of the adjacent connecting rods 52, the loop bar 62 is slidably sleeved in the sleeve 61, the fixing bolt 63 penetrates through the sleeve 61 and is in threaded connection with the sleeve 61, after the distance between the adjacent connecting frames 3 is adjusted, the fixing bolt 63 is rotated, and the fixing bolt 63 abuts against the loop bar 62, so that the relative position between the sleeve 61 and the loop bar 62 is ensured, and the effect of ensuring the stable operation of the transformer is achieved.

Refer to fig. 2 and 4, primary 21 and secondary 22 outer wall all overlap and are equipped with casing 8, casing 8 and fixed frame 1 fixed connection, ventilation hole 81 has all been seted up on the bottom and the top of casing 8, casing 8's setting can prevent that the transformer from receiving external environment influence in the use, guarantee primary 21 and secondary 22's stability in use, the heat that the transformer produced in the use can follow the outflow in ventilation hole 81 under the effect of air supply subassembly 4, the air supply efficiency of transformer has been guaranteed, guarantee the stability of transformer during operation.

The implementation principle of the embodiment is as follows: divide into the multiunit with iron core 2, and with 1 fixed connection of fixed frame, use subassembly 5 that slides to connect fixed frame 1 and connection frame 3, use adjusting part 6 to confirm the distance between the adjacent connection frame 3 after the connection is accomplished, all there is the space between every group iron core 2 after the regulation is accomplished, and the space between every group iron core 2 can make things convenient for the circulation of air, thereby make things convenient for the heat that the transformer during operation produced to give off, air supply subassembly 4's setting has increased the circulation of air in the transformer, dust removal net 7's setting can reduce the dust that passes through fan 41 and be infected with at iron core 2, primary 21 and secondary 22's outer wall, guarantee the heat dissipation that the transformer can be fine.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a high-power transformer of high-efficient heat dissipation, including fixed frame (1), iron core (2), primary coil (21) and secondary coil (22), fixed frame (1) is provided with two, iron core (2) are rectangle loop configuration, fixed frame (1) respectively with the top and the bottom fixed connection of iron core (2), one side in iron core (2) is established in primary coil (21), the opposite side in iron core (2) is established in secondary coil (22) cover, and primary coil (21) and secondary coil (22) symmetry, its characterized in that: the iron core (2) comprises a plurality of iron sheets (23), all the iron sheets (23) are divided into a plurality of groups, a connecting frame (3) is arranged between each group of iron sheets (23) and the fixed frame (1), the connecting frame (3) is fixedly connected with the iron sheets (23) and the fixed frame (1), and a gap is arranged between the connecting frames (3) of the same fixed frame (1), the fixed frame (1) below the iron core (2) is fixedly connected with an air supply component (4), be provided with between fixed frame (1) and linking frame (3) subassembly (5) that slides, subassembly (5) that slides includes slider (51) and connecting rod (52), connecting rod (52) fixed connection slider (51) and linking frame (3), spout (11) have been seted up to fixed frame (1) bottom, and spout (11) are run through and at spout (11) sliding connection in connecting rod (52), is provided with between connecting rod (52) and is used for adjusting regulating assembly (6) of distance between connecting rod (52).

2. The high-efficiency heat-dissipation high-power transformer of claim 1, wherein: air supply subassembly (4) are provided with a plurality ofly including fan (41) and connecting bolt (42), fan (41), and fan (41) quantity equals the sum of primary coil (21) and secondary coil (22), and connecting bolt (42) fixed connection fan (41) and fixed frame (1), and the air outlet of fan (41) is towards primary coil (21) and secondary coil (22) respectively.

3. The high-efficiency heat-dissipation high-power transformer of claim 1, wherein: adjusting part (6) include sleeve pipe (61), loop bar (62) and fixing bolt (63), and sleeve pipe (61) and loop bar (62) fixed connection are at adjacent connecting rod (52) lateral wall respectively, and loop bar (62) slip cover establish in sleeve pipe (61), and fixing bolt (63) run through sleeve pipe (61) outer wall and loop bar (62) outer wall butt, and fixing bolt (63) and sleeve pipe (61) threaded connection.

4. The high-efficiency heat-dissipation high-power transformer of claim 2, wherein: and an air outlet of the fan (41) is fixedly connected with a dust removal net (7).

5. The high-efficiency heat-dissipation high-power transformer of claim 1, wherein: the outer walls of the primary coil (21) and the secondary coil (22) are respectively sleeved with a shell (8), and the shells (8) are fixedly connected with the fixing frame (1).

6. The high-efficiency heat-dissipation high-power transformer of claim 5, wherein: the top and the bottom of the shell (8) are both provided with vent holes (81).

7. The high-efficiency heat-dissipation high-power transformer of claim 1, wherein: the connecting frame (3) is of a U-shaped plate structure, and the connecting frame (3) is made of an insulating material.