Dry-type transformer coil heat dissipation structure

Abstract

The utility model discloses a dry-type transformer coil heat dissipation structure, which relates to the technical field of heat dissipation and comprises a protective shell, a heat conduction block is clamped on the inner side of the protective shell, a heat dissipation hole is arranged at the top end of the heat conduction block, and one end of the heat conduction block is clamped with an insulation block. When heat in the transformer body rises, the heat conduction blocks on the inner side of the protective shell conduct heat conduction on the transformer body, the heat conducted out is discharged through the heat dissipation holes, and then the air guide assembly in the heat dissipation fan absorbs and discharges heat generated in the transformer body. A first dust baffle at the bottom end of the heat dissipation fan can block dust particles in the atmosphere when heat is discharged, and meanwhile a protective top cover and a second dust baffle at the top of the protective shell can absorb the air in the atmosphere when the heat dissipation fan absorbs the air in the atmosphere. And dust particles and water vapor in the atmosphere can be filtered and absorbed through an internal filter screen and an activated carbon adsorption net, so that the service life of the transformer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a dry-type transformer coil heat dissipation structure. Background Art

[0002] A dry-type transformer is a transformer that does not use a liquid insulating medium. Compared to oil-immersed transformers, dry-type transformers offer advantages such as fire resistance, environmental friendliness, ease of maintenance, and a long service life. Dry-type transformers are typically made of inorganic materials such as insulating paper, insulation board, and insulation felt. These inorganic materials not only offer excellent insulation properties but also possess high heat and corrosion resistance.

[0003] Chinese utility model CN218826554U discloses a dry-type transformer coil heat dissipation structure, comprising an inner coil and an outer coil coaxially arranged from the inside to the outside, an inner thermally conductive adhesive layer being provided on the outer annular surface of the inner coil, an outer thermally conductive adhesive layer being provided on the inner annular surface of the outer coil, a heat dissipation space being provided between the inner thermally conductive adhesive layer and the outer thermally conductive adhesive layer, and a fan being provided on the top of the heat dissipation space; insulating pads are uniformly provided along the circumferential direction in the heat dissipation space between the inner thermally conductive adhesive layer and the outer thermally conductive adhesive layer, an axial heat dissipation channel parallel to the axis of the inner coil is formed between adjacent insulating pads, and a plurality of annular heat dissipation channels connected to the axial heat dissipation channels are provided on the insulating pads; the utility model can not only efficiently dissipate heat for the coil inside the dry-type transformer, but also comprehensively dissipate heat for the insulating parts between the coils, thereby further improving the heat dissipation effect of the entire dry-type transformer.

[0004] During the development of this utility model, the inventors discovered that this technology has at least the following problems: While this technology uses a fan and a heat-conducting block to dissipate heat from the transformer, while achieving a certain cooling effect, the fan draws airborne dust particles and atmospheric moisture into the transformer as it draws in air. This can cause dust particles and moisture to enter the transformer, thereby shortening its service life. Therefore, a dry-type transformer coil heat dissipation structure is proposed. Utility Model Content

[0005] In order to improve the problem that the utility model uses a fan and a heat-conducting block to dissipate heat from the transformer, although there is a certain heat dissipation effect, when the fan inhales air, dust particles in the air and moisture in the atmosphere are sucked into the transformer, which causes dust particles and moisture to enter the transformer, thereby affecting the service life of the transformer, the utility model provides a dry-type transformer coil heat dissipation structure.

[0006] The utility model provides a dry-type transformer coil heat dissipation structure, which adopts the following technical solutions:

[0007] A dry-type transformer coil heat dissipation structure includes a protective shell, a heat conducting block is clamped on the inner side of the protective shell, a heat dissipation hole is provided on the top of the heat conducting block, one end of the heat conducting block is clamped on an insulating block, the inner side of the insulating block is fixedly connected to a transformer body, a fixed clamping socket is provided on the top of the protective shell, an axial vent is provided on the inner side of the protective shell, a heat dissipation fan is clamped on the bottom end of the protective shell, an air guide assembly is clamped on the inner side of the heat dissipation fan, a dust baffle 1 is fixedly connected to the bottom end of the heat dissipation fan, a fixed clamping block is fixed on the top of the protective shell, a protective top cover is clamped on the top of the protective top cover, a dust baffle 2 is fixed on the top of the dust baffle 2, a filter screen is clamped on the second dust baffle, and an activated carbon adsorption screen is clamped on the inner side of the second dust baffle.

[0008] Optionally, the heat conducting blocks are provided in multiple groups and are evenly clamped to the inner side of the protective shell.

[0009] By adopting the above technical solution, the heat generated inside the transformer can be conducted away through the heat conduction block.

[0010] Optionally, the heat dissipation holes are provided in multiple groups and are evenly opened on the top of the heat conducting block.

[0011] By adopting the above technical solution, the heat conducted away by the heat conducting block is conducted away through the heat dissipation holes on the top of the heat conducting block.

[0012] Optionally, the fixed bayonet is provided in two groups and is symmetrically opened at the top of the protective shell, and the protective shell is also opened at the bottom of the protective shell and the top of the protective top cover.

[0013] By adopting the above technical solution, the heat dissipation fan and the protective top cover can be fixed by fixing the bayonet.

[0014] Optionally, the axial ventilation opening is opened in the middle of the protective shell and the insulating block.

[0015] By adopting the above technical solution, the transformer can be naturally cooled through the axial ventilation openings.

[0016] Optionally, the fixed blocks are provided in two groups and are symmetrically fixed to the top of the heat dissipation fan, and the fixed blocks are also fixed to the bottom of the protective top cover and the two bottom ends of the dust baffle.

[0017] By adopting the above technical solution, the heat dissipation fan and the protective top cover can be fixed by fixing the clamping block.

[0018] Optionally, the heat dissipation fan is electrically connected to the air guide assembly.

[0019] By adopting the above technical solution, the heat generated inside the transformer can be absorbed and discharged through the air guide component inside the heat dissipation fan.

[0020] Optionally, the fixing bayonet is adapted to the fixing block.

[0021] By adopting the above technical solution, the heat dissipation fan and the protective top cover can be fixed by fixing the fixing bayonet and the fixing bayonet.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The utility model can fix the protective top cover, the second dust baffle and the cooling fan to the top and bottom of the protective shell by using the fixing bayonet and the fixing block. When the heat inside the transformer body increases, the heat-conducting block inside the protective shell conducts heat to the transformer body, and the heat conducted away is discharged through the heat dissipation holes. Thereafter, the air guide component inside the cooling fan absorbs and discharges the heat generated inside the transformer body. The dust baffle one at the bottom end of the cooling fan can block dust particles in the atmosphere when discharging heat. At the same time, the protective top cover and the second dust baffle on the top of the protective shell can filter and absorb dust particles and water vapor in the atmosphere through the internal filter screen and the activated carbon adsorption screen when the cooling fan absorbs air in the atmosphere, thereby improving the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2 It is a front structural schematic diagram of the protective shell in the utility model.

[0026] Figure 3 It is a schematic diagram of the internal structure of the protective shell in the utility model.

[0027] Figure 4 It is a schematic diagram of the internal structure of the heat dissipation fan in the utility model.

[0028] Figure 5 It is a schematic diagram of the internal structure of the protective top cover in the utility model.

[0029] Description of reference numerals:

[0030] 1. Protective shell; 2. Heat conducting block; 3. Heat dissipation holes; 4. Insulation block; 5. Transformer body; 6. Fixing clip; 7. Axial vent; 8. Cooling fan; 9. Air guide assembly; 10. Dust shield 1; 11. Fixing clip; 12. Protective top cover; 13. Dust shield 2; 14. Filter; 15. Activated carbon adsorption net. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] Please refer to Figure 1-5 The top of the heat conducting block 2 is provided with a heat dissipation hole 3, and the heat dissipation hole 3 is provided on the top of the heat conducting block 2. The ... The inner side of the fan 8 is clamped with the air guide component 9, and the heat dissipation fan 8 is electrically connected to the air guide component 9. The heat generated inside the transformer can be absorbed and discharged through the air guide component 9 inside the heat dissipation fan 8. The bottom end of the heat dissipation fan 8 is fixedly connected to a dust baffle 10, and the top of the heat dissipation fan 8 is fixedly connected to a fixed block 11. There are two groups of fixed blocks 11 and they are symmetrically fixed to the top of the heat dissipation fan 8. The fixed bayonet 6 is adapted to the fixed block 11. The top of the protective shell 1 is clamped with a protective top cover 12. The bottom end of the protective shell 1 and the top end of the protective top cover 12 are also provided with a fixed bayonet 6. The fixed block 11 and the fixed bayonet 6 can fix the heat dissipation fan 8 to the protective top cover 12. The top of the protective top cover 12 is fixedly connected to a dust baffle 2 13. The bottom end of the protective top cover 12 and the bottom end of the dust baffle 2 13 are also fixedly connected to the fixed block 11. The dust baffle 2 13 is clamped with a filter screen 14, and the inside of the dust baffle 2 13 is clamped with an activated carbon adsorption screen 15.

[0033] The implementation principle of the present utility model is as follows: the protective top cover 12, the second dust baffle 13 and the heat dissipation fan 8 can be fixed to the top and bottom of the protective shell 1 by the fixing bayonet 6 and the fixing block 11. When the heat inside the transformer body 5 increases, the heat-conducting block 2 on the inside of the protective shell 1 conducts heat to the transformer body 5, and the heat conducted is discharged through the heat dissipation hole 3. Then the air guide component 9 inside the heat dissipation fan 8 absorbs and discharges the heat generated inside the transformer body 5. The dust baffle 10 at the bottom of the heat dissipation fan 8 can block dust particles in the atmosphere when dissipating heat. At the same time, the protective top cover 12 and the second dust baffle 13 on the top of the protective shell 1 can filter and absorb dust particles and water vapor in the atmosphere through the internal filter screen 14 and the activated carbon adsorption screen 15 when the heat dissipation fan 8 absorbs the air in the atmosphere, thereby improving the service life of the transformer.

[0034] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dry-type transformer coil heat dissipation structure, comprising a protective housing (1), characterized in that: The inner side of the protective shell (1) is clamped with a heat conducting block (2), a heat dissipation hole (3) is provided at the top of the heat conducting block (2), one end of the heat conducting block (2) is clamped with an insulating block (4), the inner side of the insulating block (4) is fixedly connected to a transformer body (5), a fixed bayonet (6) is provided at the top of the protective shell (1), an axial vent (7) is provided at the inner side of the protective shell (1), the bottom end of the protective shell (1) is clamped with a heat dissipation fan (8), the inner side of the heat dissipation fan (8) is clamped with an air guide assembly (9), the bottom end of the heat dissipation fan (8) is fixedly connected to a dust baffle (10), the top end of the heat dissipation fan (8) is fixedly connected to a fixed clamping block (11), the top end of the protective shell (1) is clamped with a protective top cover (12), the top end of the protective top cover (12) is fixedly connected to a dust baffle (13), the dust baffle (13) is clamped with a filter screen (14), and the inner side of the dust baffle (13) is clamped with an activated carbon adsorption screen (15).

2. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The heat conducting blocks (2) are provided in multiple groups and are evenly clamped to the inner side of the protective shell (1).

3. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The heat dissipation holes (3) are provided in multiple groups and are evenly opened on the top of the heat conducting block (2).

4. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The fixed bayonet (6) is provided in two groups and is symmetrically opened at the top of the protective shell (1). The protective shell (1) is also opened at the bottom of the protective shell (1) and the top of the protective top cover (12).

5. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The axial ventilation opening (7) is opened in the middle of the protective shell (1) and the insulating block (4).

6. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The fixed blocks (11) are provided in two groups and are symmetrically fixed to the top of the heat dissipation fan (8). The fixed blocks (11) are also fixed to the bottom of the protective top cover (12) and the bottom of the second dust baffle (13).

7. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The heat dissipation fan (8) is electrically connected to the air guide component (9).

8. The dry-type transformer coil heat dissipation structure according to claim 1, characterized in that: The fixed bayonet (6) is adapted to the fixed block (11).

Images