Noise reduction type novel dry-type transformer

Abstract

The utility model relates to the technical field of dry type transformers, and discloses a novel noise reduction type dry type transformer which comprises a noise reduction protection box, a mounting seat fixed at the bottom of the inner wall of the noise reduction protection box, a transformer shell bolted above the mounting seat, and a transformer iron core body mounted in the transformer shell, the surface of the transformer iron core body is sleeved with a transformer coil body, and the outer side of the transformer coil body is wrapped with a noise reduction wrapping layer. The low-noise material is adopted to reduce vibration and noise of the iron core under the action of a magnetic field, the high-quality insulating material is used for wrapping the transformer coil so as to improve insulating performance and reduce electromagnetic interference, noise is reduced, the transformer further has a good heat dissipation function, heat dissipation efficiency is improved, and the service life of the transformer is prolonged. The transformer is simple in structure, temperature rise is reduced, thermal expansion and noise of materials are reduced, noise generated by the transformer is reduced in multiple aspects, and then people living around are effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to dry -type transformer technical field, concretely is a novel dry -type transformer of noise reduction type. BACKGROUND

[0002] Dry -type transformer is widely used in partial lighting, high -rise building, airport, wharf CNC mechanical equipment etc. place, simply said dry -type transformer is the transformer of iron core and winding not impregnated in insulating oil, and dry -type transformer is mainly composed of the iron core of silicon steel sheet and the coil of epoxy resin pouring, and the insulating cylinder is placed between high -low voltage coil to increase electrical insulation, and by the spacer support and constraint coil, and the fastener of the joint of spare part has the loosening performance.

[0003] Dry -type transformer can produce greater noise in the operation process, and this noise has multiple potential hazards to people's daily life and health, and noise pollution can seriously affect the comfort and sleep quality of the residents, and people can have symptoms such as neurasthenia, insomnia, headache and other neurosis under long -term exposure to such noise environment, which can affect the daily life of the surrounding people. UTILITY MODEL CONTENT

[0004] The utility model discloses a novel dry -type transformer of noise reduction type to solve the problems in the background art.

[0005] In order to realize the above -mentioned purpose, the utility model provides the following technical scheme: a novel dry -type transformer of noise reduction type, including the mounting seat of the noise reduction protection box, the mounting seat is fixed in the bottom of the inner wall of the noise reduction protection box and the transformer shell is bolted in the upper of the mounting seat, still including:

[0006] The transformer iron core body is installed in the inside of the transformer shell, and the surface of the transformer iron core body is provided with the transformer coil body, and the outside of the transformer coil body is wrapped with the noise reduction wrapping layer.

[0007] The heat conduction cooling plate is arranged on the front and rear sides in the inside of the noise reduction protection box, the surface of the heat conduction cooling plate is fixed with the heat conduction sheet close to the inner wall of the noise reduction protection box, the left and right sides of the front and rear sides of the noise reduction protection box are bolted with the mounting frame, and the cooling fan is installed in the inside of the mounting frame.

[0008] Preferably, the transformer iron core body includes a first low-noise damping layer and a second low-noise damping layer, and the material of the first low-noise damping layer is non-oriented silicon steel sheet, and the material of the second low-noise damping layer is ferrite.

[0009] Preferably, the noise reduction wrapping layer includes a first noise reduction layer, a second noise reduction layer, and a third noise reduction layer, and the material of the first noise reduction layer is polyimide, the material of the second noise reduction layer is polytetrafluoroethylene, and the material of the third noise reduction layer is acrylonitrile butadiene rubber.

[0010] Preferably, the surfaces of the opposite sides of the heat-conducting cooling plate are adhered with flexible damping pads, and the flexible damping pads are attached to the surfaces of the noise-reducing wrapping layer.

[0011] Preferably, the material of the flexible damping pad is a heat-conducting silica gel pad, and the materials of the heat-conducting cooling plate and the heat-conducting sheet are copper-aluminum alloy.

[0012] Preferably, the heat-conducting sheet penetrates through the noise-reducing protection box and extends to the surface of the noise-reducing protection box on the side away from the heat-conducting cooling plate, and the spacing between the heat-conducting sheets is the same.

[0013] Preferably, the noise-reducing protection box is provided with an inspection opening at the top, and the noise-reducing protection box is made of calcium silicate board.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a transformer with low noise and good heat dissipation function, which comprises a transformer shell, a transformer core body, a transformer coil body and a noise-reducing wrapping layer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is a sectional view of the noise-reducing protection box in the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the transformer shell in the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the transformer coil body in the utility model;

[0020] Figure 5 It is a structure layering diagram of the noise-reducing wrapping layer in the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of the transformer core body in the utility model;

[0022] Figure 7 It is a structure layering diagram of the transformer core body in the utility model.

[0023] In the figure: 1, noise reduction protection box; 2, mounting seat; 3, transformer shell; 4, transformer core body; 41, first low noise damping layer; 42, second low noise damping layer; 5, transformer coil body; 6, noise reduction wrapping layer; 61, first noise reduction layer; 62, second noise reduction layer; 63, third noise reduction layer; 7, heat conduction cooling plate; 8, heat conduction sheet; 9, mounting frame; 10, cooling fan; 11, flexible damping pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-7 As shown in the figure, a new dry-type transformer of noise reduction type, including noise reduction protection box 1, the bottom of the inner wall of noise reduction protection box 1 is fixed with mounting seat 2, the upper of mounting seat 2 is bolted with transformer shell 3, the inside of transformer shell 3 is installed with transformer core body 4, and the surface of transformer core body 4 is sleeved with transformer coil body 5, the outside of transformer coil body 5 is wrapped with noise reduction wrapping layer 6, the front and rear sides inside noise reduction protection box 1 are both provided with heat conduction cooling plate 7, the surface of heat conduction cooling plate 7 close to the inner wall of noise reduction protection box 1 is fixed with heat conduction sheet 8, the left and right sides of the front and rear sides of noise reduction protection box 1 are both bolted with mounting frame 9, and the inside of mounting frame 9 is installed with cooling fan 10.

[0026] Transformer core body 4 includes first low noise damping layer 41 and second low noise damping layer 42, and the material of first low noise damping layer 41 is non-oriented silicon steel sheet, and the material of second low noise damping layer 42 is ferrite, so that the core has uniform magnetic properties and anti-magnetic properties, and the noise reduction purpose is achieved.

[0027] Noise reduction wrapping layer 6 includes first noise reduction layer 61, second noise reduction layer 62 and third noise reduction layer 63, and the material of first noise reduction layer 61 is polyimide, the material of second noise reduction layer 62 is polytetrafluoroethylene, and the material of third noise reduction layer 63 is acrylonitrile butadiene rubber, so that the wrapping layer has high temperature stability, chemical corrosion resistance and excellent insulation performance, to improve the insulation performance and reduce electromagnetic interference, thereby reducing noise.

[0028] The surface of the opposite side of heat conduction cooling plate 7 is all bonded with flexible damping pad 11, and the surface of flexible damping pad 11 is attached with noise reduction wrapping layer 6, when the transformer vibrates, the whole transformer can be buffered and damped through flexible damping pad 11, and the noise is reduced.

[0029] The material of the flexible damping pad 11 is a heat-conducting silica gel pad, the material of the heat-conducting cooling plate 7 and the heat-conducting sheet 8 is copper-aluminum alloy, after the flexible damping pad 11 contacts with the surface of the noise reduction wrapping layer 6, the heat generated by the transformer can be transmitted to the inside of the heat-conducting cooling plate 7, and the heat is dissipated to the outside through the heat-conducting sheet 8 on the surface of the heat-conducting cooling plate 7, so as to cool the transformer inside.

[0030] The heat-conducting sheet 8 penetrates through the noise reduction protection box 1 and extends to the surface of the noise reduction protection box 1 away from the heat-conducting cooling plate 7, and the spacing between the heat-conducting sheet 8 is the same, when the cooling fan 10 on the surface of the noise reduction protection box 1 is opened, the heat inside the heat-conducting sheet 8 can be discharged to the outside, thereby effectively processing the heat inside the noise reduction protection box 1.

[0031] The noise reduction protection box 1 is made of calcium silicate board, and the calcium silicate board is a new type of environmentally friendly building sound insulation material, which has excellent sound insulation effect, good sound absorption performance, high temperature resistance and non-toxic and harmless characteristics, and can effectively reduce the noise of the transformer inside.

[0032] Working principle: when the transformer is working, the transformer iron core body 4 and the noise reduction wrapping layer 6 inside the transformer can effectively reduce the noise of the transformer, and after the transformer is in the noise reduction protection box 1, the noise generated by the transformer can be processed again through the noise reduction protection box 1, thereby reducing the influence of noise on the surrounding environment, when the transformer is running, the temperature is relatively high, the heat inside the transformer is transmitted to the inside of the heat-conducting cooling plate 7, and then transmitted to the surface of the heat-conducting sheet 8 through the heat-conducting cooling plate 7, then the cooling fan 10 on both sides is opened, the heat on the surface of the heat-conducting sheet 8 is directly discharged to the outside through the cooling fan 10, the transformer inside the noise reduction protection box 1 is cooled, so that the transformer remains in a suitable working state, thereby improving the heat dissipation efficiency, reducing the temperature rise, reducing the thermal expansion of the material and the noise generated.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new dry-type transformer with noise reduction, comprising a noise reduction protection box (1), a mounting seat (2) fixed to the inner wall bottom of the noise reduction protection box (1), and a transformer shell (3) bolted above the mounting seat (2), characterized in that, Also include: The transformer core body (4) is installed inside the transformer shell (3), and the surface of the transformer core body (4) is sleeved with a transformer coil body (5), and the outer side of the transformer coil body (5) is wrapped with a noise reduction wrapping layer (6); The heat-conducting cooling plates (7) are arranged on the front and rear sides inside the noise reduction protection box (1), the heat-conducting cooling plates (7) are fixed with heat-conducting sheets (8) close to the surface of the inner wall of the noise reduction protection box (1), the left and right sides of the front and rear sides of the noise reduction protection box (1) are bolted with mounting racks (9), and the cooling fans (10) are installed in the mounting racks (9).

2. A novel dry-type transformer of the noise reduction type according to claim 1, characterized in that: The transformer core body (4) includes a first low-noise damping layer (41) and a second low-noise damping layer (42), and the material of the first low-noise damping layer (41) is non-oriented silicon steel sheet, and the material of the second low-noise damping layer (42) is ferrite.

3. The novel dry-type transformer of claim 1, wherein: The noise reduction wrapping layer (6) includes a first noise reduction layer (61), a second noise reduction layer (62) and a third noise reduction layer (63), and the material of the first noise reduction layer (61) is polyimide, the material of the second noise reduction layer (62) is polytetrafluoroethylene, and the material of the third noise reduction layer (63) is acrylonitrile butadiene rubber.

4. The novel dry-type transformer of claim 1, wherein: The surface of the heat-conducting cooling plate (7) opposite side is adhered with a flexible damping pad (11), and the flexible damping pad (11) is attached to the surface of the noise reduction wrapping layer (6).

5. A novel dry-type transformer of the noise reduction type according to claim 4, characterized in that: The material of the flexible damping pad (11) is heat-conducting silica gel pad, and the materials of the heat-conducting cooling plate (7) and the heat-conducting sheet (8) are both copper-aluminum alloy.

6. A novel dry-type transformer of the noise reduction type according to claim 1, characterized in that: The side of the heat-conducting sheet (8) away from the heat-conducting cooling plate (7) penetrates the noise reduction protection box (1) and extends to the surface of the noise reduction protection box (1), and the spacing between the heat-conducting sheets (8) is the same.

7. The novel dry-type transformer of claim 1, wherein: The top of the noise reduction protection box (1) is provided with an access hole, and the noise reduction protection box (1) is made of calcium silicate board.

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