Box-type transformer with heat dissipation mechanism

Abstract

The box-type transformer with the heat dissipation mechanism comprises a transformer case, an installation box is fixedly installed on the left side of the transformer case, an installation plate is fixedly installed in the installation box, three sets of fixing frames distributed at equal intervals are fixedly installed on the installation plate, filter screens are embedded in the fixing frames, and the filter screens are fixedly installed on the transformer case. A movable frame is slidably mounted in the mounting box, three groups of mounting seats which are distributed at equal intervals are fixedly mounted on the movable frame, two groups of screw rods which are symmetrically distributed are arranged in the mounting box, a plurality of groups of adjusting plates which are annularly distributed are arranged in the mounting seats, and sweeping brushes are fixedly mounted on the adjusting plates; according to the box-type transformer, dust in air entering the case is filtered through the arranged filter screens, automatic cleaning of the filter screens on the corresponding fixing frames is achieved through the arranged mounting bases, adjusting plates and sweeping brushes, and the situation that the ventilation capacity of the filter screens is seriously reduced due to the fact that a large amount of dust is accumulated on the filter screens, and then normal heat dissipation of the box-type transformer is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to box type transformer technical field, concretely is a box type transformer with heat abstractor. BACKGROUND

[0002] The box type transformer concentrates the traditional transformer design in the box type shell, has small, light weight, low noise, low loss, high reliability, is widely used in residential area, commercial center, light station, airport, factory and mine, enterprise, hospital, school and so on, the box type transformer operation process can produce a large amount of heat, if heat can not be promptly dissipated, can lead to the temperature of transformer continuously increasing, further influence its performance, life even safety, thus the existing box type transformer needs heat abstractor.

[0003] In the prior art, in order to avoid that a large amount of dust in the air enters the transformer and affects the normal operation of internal equipment, a dust screen is usually arranged at the air inlet to filter dust in the air, and after the dust screen is used for a period of time, a large amount of dust in the air adheres to the surface of the dust screen, so that the air permeability of the dust screen gradually decreases, the heat dissipation efficiency of the box type transformer gradually decreases, and finally the normal operation of the transformer is affected. UTILITY MODEL CONTENTS

[0004] The utility model discloses a box type transformer with heat abstractor to solve the problem in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a box type transformer with heat abstractor, including transformer case, the left side of transformer case is fixedly installed with installation box, the right side of transformer case is opened and is equipped with the installation frame, be equipped with negative pressure fan in the installation frame, the installation box is opened and is equipped with air inlet and air outlet, the installation box is fixedly installed with mounting plate, three groups equidistance distribution's fixed frame are fixedly installed on the mounting plate, the fixed frame all is embedded with filter screen, the mobile frame is slidably installed in the installation box, three groups equidistance distribution's mount pad are fixedly installed on the mobile frame, three groups mount pad and fixed frame correspond setting, three groups mount pad and corresponding fixed frame sliding sleeve joint, the installation box is equipped with two groups of symmetrical distribution's lead screw, the mount pad is equipped with multiple groups of annular distribution's adjusting plate, multiple groups of adjusting plate all are fixedly installed with the brush of the brush, the brush all with filter screen outside side is pasted, the fixed seat is fixedly installed in the installation box, the positioning frame is slidably installed on the fixed seat, the positioning frame is equipped with three groups equidistance distribution's cleaning cylinder.

[0006] As a further preferred embodiment of this technical solution, the transformer chassis is provided with a connection port, which is correspondingly set with the air outlet and the negative pressure fan. A bottom cover is hinged to the bottom of the mounting box, and a baffle is fixedly installed inside the mounting box, which is distributed correspondingly with the air inlet.

[0007] As a further preferred embodiment of this technical solution, the upper end of the fixing frame is open, the lower end of the fixing frame is closed, and both the upper end of the fixing frame and the mounting plate are located below the air outlet.

[0008] As a further preferred embodiment of this technical solution, the two ends of the lead screw pass through the side wall of the mounting box and are rotatably connected to the mounting box via bearings. Both sets of lead screws pass through the movable frame and are threadedly connected to the movable frame respectively.

[0009] As a further preferred embodiment of this technical solution, a mounting ring is rotatably mounted inside the mounting base, and a gear ring is sleeved on the mounting ring. Multiple sets of the adjusting plates are rotatably connected to the mounting base via a mounting shaft, and gears are sleeved on the mounting shaft. Multiple sets of the gears are meshed with the gear ring.

[0010] As a further preferred embodiment of this technical solution, the fixing seat is located below the three sets of fixing frames, the three sets of cleaning cylinders are correspondingly arranged with the three sets of mounting seats, a sliding rod is fixedly installed inside the fixing seat, the positioning frame is slidably sleeved with the sliding rod, and a cam is rotatably installed on the fixing seat, the cam is fitted with the positioning frame.

[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed springs are sleeved on the slide rod, and the two ends of the springs are respectively fixedly connected to the positioning frame and the fixing seat.

[0012] This utility model provides a box-type transformer with a heat dissipation mechanism, which has the following beneficial effects:

[0013] (1) This utility model achieves ventilation and heat dissipation in the transformer chassis by using the installation box, fixing frame and filter screen in conjunction with the air inlet, air outlet and the corresponding negative pressure fan installed on the transformer chassis, so as to avoid the temperature inside the transformer chassis being too high and affecting the normal operation of the equipment inside the transformer. The filter screen also filters the dust in the air entering the chassis, effectively preventing dust from entering the chassis and causing adverse effects on the normal use of the equipment inside the chassis. At the same time, the installation base, adjustment plate and sweeping brush achieve automatic cleaning of the corresponding fixing frame and the filter screen on the fixing frame, so as to avoid the large accumulation of dust on the filter screen, which would cause a serious decrease in the airflow of the filter screen and thus affect the normal heat dissipation of the box-type transformer.

[0014] (2) This utility model achieves the cleaning of the brush in the mounting base on the mobile frame by setting the cleaning cylinder, maintaining the good cleaning efficiency of the brush, and thus maintaining the good cleaning efficiency of the brush on the surface of the filter screen in subsequent use, avoiding the secondary pollution of the filter screen caused by a large amount of dust adhering to the surface of the brush after a long period of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0017] Figure 3 This is a schematic diagram showing the structural separation of the mounting box and mounting plate of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the fixing frame of this utility model;

[0019] Figure 5 This is a schematic diagram showing the structural separation of the mounting base and the adjusting plate of this utility model;

[0020] Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point A;

[0021] In the diagram: 1. Transformer chassis; 2. Mounting box; 3. Mounting frame; 4. Negative pressure fan; 5. Air inlet; 6. Air outlet; 7. Connection port; 8. Baffle; 9. Bottom cover; 10. Mounting plate; 11. Mounting base; 12. Fixing bracket; 13. Filter screen; 14. Moving frame; 15. Lead screw; 16. Mounting ring; 17. Gear ring; 18. Adjusting plate; 19. Sweeping brush; 20. Mounting shaft; 21. Gear; 22. Positioning bracket; 23. Cleaning cylinder; 24. Slide rod; 25. Spring; 26. Cam; 27. Fixing base. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1-4As shown in this embodiment, a box-type transformer with a heat dissipation mechanism includes a transformer chassis 1. A mounting box 2 is fixedly installed on the left side of the transformer chassis 1, and a mounting frame 3 is provided on the right side of the transformer chassis 1. A negative pressure fan 4 is installed inside the mounting frame 3. An air inlet 5 and an air outlet 6 are provided on the mounting box 2. A mounting plate 10 is fixedly installed inside the mounting box 2. Three sets of equidistantly distributed mounting brackets 12 are fixedly installed on the mounting plate 10. Each mounting bracket 12 is embedded with a filter screen 13. A movable frame 14 is slidably installed inside the mounting box 2. Three sets of equidistantly distributed mounting seats 11 are fixedly installed on the movable frame 14. The three sets of mounting seats 11 are correspondingly arranged with the mounting brackets 12, and the three sets of mounting seats 11 are slidably sleeved with their corresponding mounting brackets 12. Two sets of symmetrical... The mounting base 11 has multiple sets of annularly distributed adjusting plates 18, each with a fixed brush 19 that fits against the outer side of the filter screen 13. A fixed base 27 is fixedly installed inside the mounting box 2, and a positioning frame 22 is slidably mounted on the fixed base 27. Three sets of equidistantly distributed cleaning cylinders 23 are mounted on the positioning frame 22. A connection port 7 is provided on the transformer housing 1, corresponding to the air outlet 6 and the negative pressure fan 4. A bottom cover 9 is rotatably mounted below the mounting box 2. A baffle 8 is fixedly installed inside the mounting box 2, corresponding to the air inlet 5. The upper end of the fixing frame 12 is open, and the lower end is closed. The upper end of the fixing frame 12 and the mounting plate 10 are both located... Below the air outlet 6, both ends of the lead screw 15 pass through the side wall of the mounting box 2 and are rotatably connected to the mounting box 2 via bearings. Both sets of lead screws 15 pass through the movable frame 14 and are threadedly connected to the movable frame 14. A mounting ring 16 is rotatably installed inside the mounting base 11, and a gear ring 17 is sleeved on the mounting ring 16. Multiple sets of adjusting plates 18 are rotatably connected to the mounting base 11 via the mounting shaft 20. Gears 21 are sleeved on the mounting shaft 20, and multiple sets of gears 21 are meshed with the gear ring 17. The negative pressure fan 4 in the transformer housing 1 starts, exhausting the hot air in the transformer housing 1 from the mounting frame 3. External air enters the mounting box 2 from the air inlet 5 and is filtered by the filter screen 13 on the fixed frame 12. Dust in the air is filtered and left on the filter screen. On the surface of filter 13, airflow passes through the filter 13, through the opening section of the fixed frame 12, and then through the air outlet 6 and the connection port 7 on the chassis into the transformer chassis 1. The airflow carries away the heat generated by the operation of the equipment in the transformer chassis 1, completing the heat dissipation work for the box-type transformer. After a period of use, a large amount of dust adheres to the surface of filter 13 on the fixed frame 12. The rotation of screw 15 in the mounting box 2, under the limiting action of the mounting box 2, causes the moving frame 14 to drive the three sets of mounting seats 11 to move upward. When the motor in the mounting seat 11 drives the mounting shaft 20 to rotate, it cooperates with multiple sets of gears 21 and the gear ring 17 on the mounting ring 16 to realize the synchronous inward rotation of multiple sets of adjusting plates 18 until the brush 19 is in contact with the surface of filter 13, and the screw 15 rotates in the opposite direction.Under the limiting action of the mounting box 2, the moving frame 14 causes the three sets of mounting bases 11, as well as the adjusting plate 18 and the brush 19 inside the mounting base 11, to move downwards. During the downward movement, the brush 19 cleans the dust adhering to the surface of the filter screen 13 on the fixed frame 12, maintaining the cleanliness of the filter screen 13 surface, ensuring the air permeability of the filter screen 13, and preventing dust from clogging the filter screen 13, which would affect air circulation and the normal heat dissipation of the box-type transformer.

[0024] like Figure 5 and Figure 6 As shown, the fixed base 27 is located below the three sets of fixed frames 12. The three sets of cleaning cylinders 23 are correspondingly arranged with the three sets of mounting bases 11. A slide rod 24 is fixedly installed inside the fixed base 27. The positioning frame 22 is slidably sleeved with the slide rod 24. A cam 26 is rotatably installed on the fixed base 27. The cam 26 is fitted with the positioning frame 22. Two sets of symmetrically distributed springs 25 are sleeved on the slide rod 24. The two ends of the springs 25 are fixedly connected to the positioning frame 22 and the fixed base 27, respectively. After the brush 19 in the mounting base 11 is used, it moves to... The cleaning cylinder 23 is connected to the corresponding cleaning cylinder 23. The motor in the fixed base 27 drives the cam 26 to rotate. During the rotation of the cam 26, it pushes the positioning frame 22 that is in contact with it, causing the positioning frame 22 to slide on the fixed base 27 and squeeze the spring 25 on the slide rod 24. With the help of the spring 25, the positioning frame 22 drives the three sets of cleaning cylinders 23 to vibrate up and down on the fixed base 27, cleaning the dust on the brush 19 that is in contact with it, keeping the brush 19 clean, and thus maintaining the cleaning efficiency of the brush 19 for the filter 13.

[0025] This utility model provides a box-type transformer with a heat dissipation mechanism. The specific working principle is as follows: The negative pressure fan 4 in the transformer chassis 1 starts, expelling hot air from the mounting frame 3. External air enters the mounting box 2 through the air inlet 5, passes through the filter screen 13 on the fixing frame 12, and is filtered. Dust in the air remains on the surface of the filter screen 13. The airflow passes through the filter screen 13, through the opening section of the fixing frame 12, and then through the air outlet 6 and the connection port 7 on the chassis before entering the transformer chassis 1. The airflow carries away the heat generated by the equipment in the transformer chassis 1, completing the heat dissipation work for the box-type transformer. After a period of use, a large amount of dust adheres to the surface of the filter screen 13 on the fixing frame 12. The rotation of the lead screw 15 in the mounting box 2, under the limiting action of the mounting box 2, causes the moving frame 14 to move the three sets of mounting seats 11 upwards. When the motor in the mounting seat 11 drives the mounting shaft 20 to rotate, it cooperates with multiple sets of gears 21 and the gear ring 17 on the mounting ring 16 to achieve synchronous inward rotation of multiple sets of adjusting plates 18 until the brush 19... The lead screw 15 rotates in the opposite direction, adhering to the surface of the filter screen 13. Under the limiting action of the mounting box 2, the moving frame 14 drives the three sets of mounting seats 11, as well as the adjusting plate 18 and the brush 19 inside the mounting seats 11, to move downwards. During the downward movement, the brush 19 cleans the dust adhering to the surface of the filter screen 13 on the fixed frame 12, maintaining the cleanliness of the filter screen 13 surface, ensuring the air permeability of the filter screen 13, and preventing dust from clogging the filter screen 13, which would affect air circulation and the normal heat dissipation of the box-type transformer. After the brush 19 in the mounting seat 11 is used... After completion, it moves to engage with the corresponding cleaning cylinder 23. The motor in the fixed base 27 drives the cam 26 to rotate. During the rotation of the cam 26, it pushes the positioning frame 22 that is in contact with it, causing the positioning frame 22 to slide on the fixed base 27 and squeeze the spring 25 on the slide rod 24. In conjunction with the spring 25, the positioning frame 22 drives the three sets of cleaning cylinders 23 to vibrate up and down on the fixed base 27, cleaning the dust on the brush 19 that is in contact with it, keeping the brush 19 clean, and thus maintaining the cleaning efficiency of the brush 19 for the filter 13.

[0026] The cleaning of the three sets of cleaning cylinders 23 can be done manually or by installing cleaning pipes through the bottom of the three sets of cleaning cylinders 23. The ends of the cleaning pipes extend out of the installation box 2. When the equipment is running normally, the ends of the cleaning pipes are covered with sealing caps. When dust removal, they can be connected to a vacuum cleaner.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A box-type transformer with a heat dissipation mechanism, comprising a transformer chassis, characterized in that: A mounting box is fixedly installed on the left side of the transformer chassis, and a mounting frame is opened on the right side of the transformer chassis. A negative pressure fan is installed inside the mounting frame. An air inlet and an air outlet are opened on the mounting box. A mounting plate is fixedly installed in the upper part of the mounting box. Three sets of equidistantly distributed fixing frames are fixedly installed on the mounting plate. Each fixing frame is embedded with a filter screen. A movable frame is slidably installed in the mounting box. Three sets of equidistantly distributed mounting seats are fixedly installed on the movable frame. The three sets of mounting seats are corresponding to the fixing frames and can be slidably sleeved on the outside of the corresponding fixing frames. Two sets of symmetrically distributed lead screws are provided in the mounting box. Multiple sets of annularly distributed adjusting plates are provided in the mounting seats. Brushes are fixedly installed on each of the multiple sets of adjusting plates. The brushes can fit against the outside of the filter screen. A fixing seat is fixedly installed in the mounting box. A positioning frame is slidably installed on the fixing seat. Three sets of equidistantly distributed cleaning cylinders are provided on the positioning frame.

2. A box-type transformer with a heat dissipation mechanism according to claim 1, characterized in that: The transformer chassis is provided with a connection port, which is corresponding to the air outlet and the negative pressure fan. A bottom cover is hinged to the bottom of the mounting box, and a baffle is fixedly installed inside the mounting box, which is distributed corresponding to the air inlet.

3. A box-type transformer with a heat dissipation mechanism according to claim 1, characterized in that: The upper end of the mounting bracket is open, and the lower end of the mounting bracket is closed. Both the upper end of the mounting bracket and the mounting plate are located below the air outlet.

4. A box-type transformer with a heat dissipation mechanism according to claim 1, characterized in that: The two ends of the lead screw extend into the upper and lower walls of the mounting box respectively and are rotatably connected to the mounting box through bearings. Both sets of lead screws pass through the movable frame and are threadedly connected to the movable frame respectively.

5. A box-type transformer with a heat dissipation mechanism according to claim 1, characterized in that: A mounting ring is rotatably mounted inside the mounting base, and a gear ring is sleeved on the mounting ring. Multiple sets of the adjusting plates are rotatably connected to the mounting base via a mounting shaft, and gears are sleeved on the mounting shaft. Multiple sets of the gears are meshed with the gear ring.

6. A box-type transformer with a heat dissipation mechanism according to claim 1, characterized in that: The fixed base is located below the three sets of fixed frames. The three sets of cleaning cylinders are correspondingly set with the three sets of mounting bases. A sliding rod is fixedly installed inside the fixed base. The positioning frame is slidably sleeved with the sliding rod. A cam is rotatably installed on the fixed base. The cam is fitted with the positioning frame.

7. A box-type transformer with a heat dissipation mechanism according to claim 6, characterized in that: Two sets of symmetrically distributed springs are sleeved on the slide rod, and the two ends of the springs are fixedly connected to the positioning frame and the fixed seat, respectively.

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