Bladeless cooling fan for dry-type transformer

Abstract

The utility model provides a bladeless cooling fan for a dry type transformer, which comprises a base, support frames, a filter cartridge, a first motor, an air guide port, a first gear, an inner cylinder, a second gear, a transmission case and a wind wheel, the support frames are fixed on the base, the filter cartridge is fixed between the support frames, and the air guide port is arranged on the outer side surface of the filter cartridge; a first motor is fixed to one side face of the supporting frame, and a first gear is fixed to the output end of the first motor. One end of the inner cylinder is rotationally connected with the inner wall of the filter cylinder, a transmission case is fixed at the other end of the inner cylinder, and the other end of the transmission case is rotationally connected with the inner wall of the inner cylinder; a second gear is fixed to the outer side face of the inner cylinder, and a wind wheel is rotationally installed in the inner cylinder. According to the dry-type transformer, the orientation of the air outlet can be freely adjusted so that different positions of the dry-type transformer can be conveniently cooled, meanwhile, entering gas can be filtered, filtered dust can be cleaned, and blockage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of dry-type transformers, and in particular relates to a bladeless cooling fan for dry-type transformers. Background Art

[0002] During the operation of the dry-type transformer, due to electromagnetic effects, its windings will generate a lot of heat, which needs to be cooled by the air flowing around it, otherwise it will cause a serious accident of burning the dry-type transformer. Therefore, cooling fans are generally installed around the dry-type transformer to increase the flow rate of air around the dry-type transformer through the cooling fan, thereby cooling the dry-type transformer.

[0003] However, the existing dry-type transformer uses a bladeless cooling fan, which usually uses the method of rotating blades to generate airflow for heat dissipation. However, this design has some obvious shortcomings. First, the air inlet and outlet positions of the traditional cooling fan are fixed, and cannot be flexibly adjusted according to the different positions and heat dissipation requirements of the dry-type transformer, resulting in poor cooling effect. Secondly, during long-term operation, the cooling fan is easily affected by dust and impurities in the environment. These dust and impurities will gradually accumulate at the air inlet and outlet, causing blockage of the air flow channel, thereby reducing the cooling efficiency and increasing the maintenance cost of the equipment. Utility Model Content

[0004] The utility model aims to provide a bladeless cooling fan for a dry-type transformer to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a bladeless cooling fan for a dry-type transformer, comprising a base, a support frame, a filter cartridge, a first motor, an air guide port, a first gear, an inner cylinder, a second gear, a transmission box and a wind wheel, wherein the base is fixed to the ground at the front side of the dry-type transformer by bolts, and two support frames are fixed to the upper side of the base by bolts, a filter cartridge is fixed between the support frames by bolts, wherein a plurality of air guide ports are provided on the outer side of the filter cartridge; a first motor is fixed to one side of the support frame by bolts, wherein a first gear is fixed to the output end of the first motor, and the first gear and the second gear are meshed with each other; one end of the inner cylinder is rotatably connected to the inner wall of the filter cartridge by a support bearing, and the other end of the inner cylinder is fixed to the transmission box by bolts; the other end of the transmission box is rotatably connected to the inner wall of the inner cylinder by a support bearing, and the second motor is fixed to the inside of the transmission box by bolts; the second gear is fixed to the outer side of one end of the inner cylinder, and a wind wheel is rotatably installed inside the inner cylinder by a support bearing, and one end of the wind wheel is fixed to the output end of the second motor inside the transmission box.

[0007] Furthermore, the inner cylinder includes a cylinder body, a rotating shaft, an air outlet, an air inlet and bristles, wherein a rotating shaft is fixed to one end of the cylinder body by welding, wherein the other end of the rotating shaft is rotatably connected to the inner wall of the filter cylinder through a supporting bearing, and a second gear is fixed to the outer side surface of the rotating shaft through a key connection; a transmission box is fixed to the other end of the cylinder body by bolts, and an air outlet and an air inlet are respectively provided on the outer side surface of the cylinder body; a plurality of bristles are fixed to the outer side surface of the cylinder body by inlaying, wherein the bristles are in contact with the inner wall of the filter cylinder; a wind wheel is rotatably installed inside the cylinder body through a supporting bearing, and such an arrangement can freely adjust the direction of the air outlet, so as to facilitate blowing at different positions of the dry-type transformer and clean the air guide port at the same time.

[0008] Furthermore, a filter screen is arranged inside the air guide port, wherein the outer edge of the filter screen is fixed to the filter cartridge, and the filter screen is in contact with the bristles. Such an arrangement can filter the gas entering the filter cartridge.

[0009] Furthermore, a plurality of the air outlets and air inlets are provided, and the plurality of the air outlets and air inlets are arranged in a rectangular array. Such a configuration improves the ventilation efficiency of the cooling fan.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model, when in use, the filter screen inside the air guide port can filter the incoming gas, effectively removes pollutants such as dust and impurities in the air, and increases the service life of the device; secondly, the first gear can be driven to rotate by the first motor, and then the cylinder body is driven to rotate with the cooperation of the first gear and the second gear, so as to adjust the directions of the air outlet and the air inlet, so that air can be accurately supplied according to the different positions and needs of the dry-type transformer, thereby improving the cooling effect; finally, when the inner cylinder rotates, the bristles can clean the air guide port and the filter screen, effectively preventing the accumulation of dust and impurities, ensuring the smoothness of air circulation, not only improving the ventilation efficiency of the cooling fan, but also reducing the performance degradation and failure risks caused by blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the inner cylinder of the utility model.

[0016] In the figure:

[0017] 1-base, 2-support frame, 3-filter cylinder, 4-first motor, 5-air guide port, 6-first gear, 7-inner cylinder, 71-cylinder body, 72-rotating shaft, 73-air outlet, 74-air inlet, 75-brush, 8-second gear, 9-transmission box, 10-wind wheel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0020] See also Figure 1 and Figure 2As shown, the utility model is a bladeless cooling fan for a dry-type transformer, comprising a base 1, a support frame 2, a filter cartridge 3, a first motor 4, an air guide 5, a first gear 6, an inner cylinder 7, a second gear 8, a transmission box 9 and a wind wheel 10. The base 1 is fixed to the front ground of the dry-type transformer by bolts, and two support frames 2 are fixed to the upper side of the base 1 by bolts, and the filter cartridge 3 is fixed between the support frames 2 by bolts, wherein the outer side of the filter cartridge 3 is provided with a plurality of air guides 5; a first motor 4 is fixed to one side of the support frame 2 by bolts, wherein the first motor A first gear 6 is fixed to the output end of the filter cylinder 4, and the first gear 6 is meshed with the second gear 8; one end of the inner cylinder 7 is rotatably connected to the inner wall of the filter cylinder 3 through a support bearing, and the other end of the inner cylinder 7 is fixed to a transmission box 9 by bolts; the other end of the transmission box 9 is rotatably connected to the inner wall of the inner cylinder 7 through a support bearing, and the inside of the transmission box 9 is fixed with a second motor by bolts; a second gear 8 is fixed to the outer side surface of one end of the inner cylinder 7, and a wind wheel 10 is rotatably installed inside the inner cylinder 7 through a support bearing, and one end of the wind wheel 10 is fixed to the output end of the second motor inside the transmission box 9.

[0021] like Figure 3 As shown, the inner cylinder 7 includes a cylinder body 71, a rotating shaft 72, an air outlet 73, an air inlet 74 and bristles 75. The rotating shaft 72 is fixed to one end of the cylinder body 71 by welding, wherein the other end of the rotating shaft 72 is rotatably connected to the inner wall of the filter cylinder 3 through a supporting bearing, and the outer side surface of the rotating shaft 72 is fixed with a second gear 8 through a key connection; the other end of the cylinder body 71 is fixed with a transmission box 9 by bolts, and the outer side surface of the cylinder body 71 is respectively provided with an air outlet 73 and an air inlet 74; the outer side surface of the cylinder body 71 is fixed with a plurality of brushes by inlaying The brush 75 is in contact with the inner wall of the filter cartridge 3; the wind wheel 10 is rotatably mounted inside the cartridge 71 through a support bearing. When in use, the first motor 4 can drive the first gear 6 to rotate, and then the first gear 6 and the second gear 8 cooperate to drive the cartridge 71 to rotate, so that the directions of the air outlet 73 and the air inlet 74 can be adjusted, so as to facilitate blowing at different positions of the dry-type transformer. At the same time, when the cartridge 71 rotates, the brush 75 can clean the air guide port 5.

[0022] Specifically, a filter screen is provided inside the air guide port 5, wherein the outer edge of the filter screen is fixed to the filter cartridge 3, and the filter screen is in contact with the bristles 75. When in use, the filter screen inside the air guide port 5 can filter the gas entering the filter cartridge 3, and at the same time, the dust attached to the filter screen can be cleaned by the bristles 75.

[0023] Specifically, a plurality of air outlets 73 and air inlets 74 are provided, and the plurality of air outlets 73 and air inlets 74 are arranged in a rectangular array. Such a configuration increases the area for air circulation, thereby improving the ventilation efficiency of the cooling fan.

[0024] See also Figure 1-3 As shown, the utility model is a bladeless cooling fan for a dry-type transformer, and its working principle is as follows: first, when the equipment is started, the second motor inside the transmission box 9 starts working, driving the wind wheel 10 to rotate inside the cylinder 71, thereby sucking in fresh air through the air inlet 74 and the corresponding air guide port 5, and then spraying the gas onto the dry-type transformer through the air outlet 73 and the corresponding air guide port 5 to cool the dry-type transformer. At the same time, the staff can start the first motor 4, and the first motor 4 can drive the inner cylinder 7 to rotate under the cooperation of the first gear 6 and the second gear 8, so as to adjust the direction of the air outlet 73, so that different positions of the dry-type transformer can be cooled.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bladeless cooling fan for a dry-type transformer, comprising a base (1), a support frame (2), a filter cartridge (3), a first motor (4), an air guide port (5), a first gear (6), an inner cylinder (7), a second gear (8), a transmission box (9) and a wind wheel (10), characterized in that: The base (1) is fixed on the ground at the front side of the dry-type transformer, and two support frames (2) are fixed on the upper side of the base (1), and a filter cartridge (3) is fixed between the support frames (2), wherein the outer side of the filter cartridge (3) is provided with a plurality of air guide ports (5); a first motor (4) is fixed on one side of the support frame (2), wherein a first gear (6) is fixed on the output end of the first motor (4), and the first gear (6) and the second gear (8) are meshed with each other; one end of the inner cylinder (7) is rotatably connected to the inner wall of the filter cartridge (3), and a transmission box (9) is fixed on the other end of the inner cylinder (7); the other end of the transmission box (9) is rotatably connected to the inner wall of the inner cylinder (7), and a second motor is fixed inside the transmission box (9); a second gear (8) is fixed on the outer side of one end of the inner cylinder (7), and a wind wheel (10) is rotatably installed inside the inner cylinder (7), and one end of the wind wheel (10) is fixed to the output end of the second motor inside the transmission box (9).

2. The bladeless cooling fan for a dry-type transformer according to claim 1, characterized in that: The inner cylinder (7) comprises a cylinder body (71), a rotating shaft (72), an air outlet (73), an air inlet (74) and bristles (75); a rotating shaft (72) is fixed to one end of the cylinder body (71), wherein the other end of the rotating shaft (72) is rotatably connected to the inner wall of the filter cylinder (3), and a second gear (8) is fixed to the outer side surface of the rotating shaft (72); a transmission box (9) is fixed to the other end of the cylinder body (71), and an air outlet (73) and an air inlet (74) are respectively provided on the outer side surface of the cylinder body (71); a plurality of bristles (75) are fixed to the outer side surface of the cylinder body (71), wherein the bristles (75) are in contact with the inner wall of the filter cylinder (3); and a wind wheel (10) is rotatably mounted inside the cylinder body (71).

3. The bladeless cooling fan for a dry-type transformer according to claim 2, characterized in that: A filter screen is provided inside the air guide port (5), wherein the outer edge of the filter screen is fixed to the filter cartridge (3), and the filter screen is in contact with the bristles (75).

4. The bladeless cooling fan for a dry-type transformer according to claim 2, characterized in that: A plurality of the air outlets (73) and air inlets (74) are provided, and the plurality of the air outlets (73) and air inlets (74) are arranged in a rectangular array.

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