Transformer convenient for heat dissipation and ventilation

Abstract

The transformer comprises a shell and a transformer body fixed to the inner wall of the bottom of the shell, the inner walls of the two sides of the shell are each provided with a plurality of downwards-inclined exhaust holes, the inner walls of the two sides of the shell are each fixedly connected with a filter screen, the filter screens are matched with the corresponding exhaust holes, and the transformer body is fixedly connected with the shell. A rain cover with the top of a conical structure is fixedly installed on the top of the shell, and two supporting discs are arranged on the upper portion of the shell. By arranging a series of structures, automatic blowing and heat dissipation of the transformer main body are facilitated, rain protection can be performed on the shell and the cylindrical stainless steel filter screen at the upper part, rainwater is prevented from entering the cylindrical stainless steel filter screen, the use stability is improved, and the cylindrical stainless steel filter screen can be conveniently, regularly, automatically and comprehensively blown back, cleaned and dredged from inside to outside, so that the service life of the transformer is prolonged. And compared with simple vibration cleaning, the cleaning and dredging effects are improved, the vibration phenomenon is reduced, and the use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer which is convenient for heat dissipation and ventilation. Background Art

[0002] With the continuous advancement of industrial modernization, the speed of industrial production is constantly improving, people's living standards are getting better and better, electricity consumption is also increasing, the use of power equipment is also increasing, so the use of transformers is also increasing. Transformer is a device that can distribute electricity and is used to protect various electrical equipment of different voltage levels. Transformers are divided into low-voltage internal operation distribution transformers and low-voltage external operation transformers in use; most of the existing transformers currently use the shell opening natural cooling method for heat dissipation. During long-term use, a large amount of dust will accumulate inside the transformer shell, which makes it inconvenient for heat dissipation and ventilation. At the same time, dust can easily cause damage to the internal electrical components of the transformer, thereby affecting the normal operation of the transformer.

[0003] In this regard, after searching, the announcement number, CN212322794U discloses a transformer that is easy to dissipate heat and ventilation, including a transformer body and an outer shell, the transformer body is located inside the outer shell, the inner cavity top wall and the inner cavity bottom wall of the outer shell are fixedly connected with two fixed blocks fixedly connected to the transformer body, and the left and right sides of the outer shell are fixedly connected with connection boxes; the transformer that is easy to dissipate heat and ventilation is provided with a fan. When the fan is connected to an external power supply, the fan allows external air to enter the inner shell from the vent to form an airflow. The airflow passes through the surface of the transformer body, accelerates the heat dissipation speed of the transformer body surface, connects the vibration motor to the external power supply, and drives the rectangular frame and the filter screen to vibrate, so that the external dust attached to the filter screen falls off and falls out from the dust dropping holes, thereby avoiding excessive accumulation of external dust to affect heat dissipation and ventilation, thereby achieving the purpose of facilitating heat dissipation and ventilation.

[0004] The above technology can draw external gas and blow it into the interior to dissipate air on the transformer body through the arrangement of a fan and a filter, thereby achieving rapid heat dissipation, using the filter to filter and intercept impurities in the gas entering from the outside, and using a vibration motor installed on the filter to vibrate and clean the filter. However, there are the following shortcomings when using it: 1. Simply using vibration cleaning can shake off impurities on the outside of the filter, but it is difficult to clean out impurities stuck in the filter holes of the filter itself, and the cleaning and dredging effect is not ideal. The ventilation and heat dissipation effect will still be affected by the impurities stuck in the filter holes. In view of this, the present application proposes a transformer that is easy to dissipate heat and ventilation. Utility Model Content

[0005] The utility model aims to provide a transformer which is convenient for heat dissipation and ventilation, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer that is convenient for heat dissipation and ventilation, comprising a shell and a transformer body fixed on the inner wall at the bottom of the shell, a plurality of exhaust holes arranged downwardly inclined are opened on the inner walls on both sides of the shell, a filter screen is fixedly connected to the inner walls on both sides of the shell, the filter screen cooperates with the corresponding plurality of exhaust holes, and the exhaust holes are arranged in a downwardly inclined manner to ensure that the internal hot air is discharged while reducing the phenomenon of external rainwater splashing inward through the exhaust holes;

[0007] A rain shield with a conical top structure is fixedly installed on the top of the shell, two support plates are arranged above the shell, the support plate located at the bottom is fixedly installed on the top of the shell, a cylindrical stainless steel filter is rotatably installed between the two support plates, a fan is embedded and fixed on the right side of the bottom of the lower support plate, the top of the fan is an air inlet and is connected to the inside of the cylindrical stainless steel filter, a scattering and blowing component is fixedly installed on the top inner wall of the shell, the top of the scattering and blowing component extends to the top of the shell and is connected and fixed to the air outlet of the fan, the rain shield is used to block rainwater at the top, the scattering and blowing component is used to scatter and cool the inside of the shell when the fan is started, and the cylindrical stainless steel filter is used to filter and intercept impurities in the gas when the fan draws external gas;

[0008] A time-controlled switch is fixedly installed on the top of the shell, a rotating drive assembly is fixedly installed in the fixed sleeve of the cylindrical stainless steel filter, and a driving motor with an output shaft fixedly connected to the rotating drive assembly is fixedly installed on the left side of the bottom of the support plate below. The driving motor is electrically connected to the time-controlled switch, and the rotating drive assembly is used to drive the cylindrical stainless steel filter to rotate when the driving motor is started;

[0009] A cleaning and dredging component is fixedly connected between the two branch plates, which is located in the cylindrical stainless steel filter and cooperates with the inner wall on the left side thereof. An air pump whose air outlet is connected to the cleaning and dredging component is fixedly installed at the bottom of the lower branch plate. The air pump is electrically connected to the time-controlled switch. The cleaning and dredging component is used for fully backblowing, cleaning and dredging the cylindrical stainless steel filter from the inside to the outside when the air pump is started and the cylindrical stainless steel filter rotates.

[0010] Preferably, the diffusion and blowing assembly includes a fixed box fixedly connected to the top inner wall of the outer shell, the bottom of the fixed box is connected and fixed with a plurality of blowing pipes, the top of the fixed box is connected and fixed with a ventilation pipe, the top of the ventilation pipe is set as a hood-shaped structure and is connected and fixed with the air outlet of the fan.

[0011] Preferably, the rotary drive assembly comprises an inner gear ring fixedly sleeved in a cylindrical stainless steel filter screen, a gear is meshed on the inner left side of the inner gear ring, and the bottom of the gear is fixedly connected to the top of the output shaft of the drive motor.

[0012] Preferably, the cleaning and unblocking component includes a rectangular tube fixedly connected between two branch plates, the air outlet of the air pump extends into the rectangular tube and is connected to the interior of the rectangular tube, a one-way valve is fixed on the left side of the rectangular tube, the left end of the one-way valve is connected to and fixed with a vertical pipe with a sealing structure at the top and bottom ends, the left side of the vertical pipe is connected to and fixed with a plurality of backblowing pipe heads, the backblowing pipe heads are located in the cylindrical stainless steel filter and cooperate with the left inner wall thereof, and the fan is located on the right side of the rectangular tube.

[0013] Preferably, a temperature sensor is fixedly connected to the top inner wall of the housing, and a controller electrically connected to the temperature sensor is built into the fan.

[0014] Preferably, four supports are fixedly connected in a rectangular shape between the top of the shell and the bottom of the rain shield, and the cylindrical stainless steel filter is located inside the rain shield.

[0015] Preferably, two supporting blocks are fixedly connected between the bottom of the supporting plate located below and the top of the shell.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. This transformer is convenient for heat dissipation and ventilation. Through the cooperation of the shell, transformer body, temperature sensor, fan, cylindrical stainless steel filter and exhaust hole, the transformer body can be automatically cooled by blowing air. When the external gas is extracted for cooling by blowing air, impurities in the gas entering can be filtered and intercepted to prevent a large amount of impurities from entering the interior and affecting the use.

[0018] 2. This transformer is convenient for heat dissipation and ventilation. The rain shield is arranged to protect the outer shell and the cylindrical stainless steel filter from rain at the upper part, prevent rainwater from entering the cylindrical stainless steel filter, and improve the stability of use;

[0019] 3. This transformer is convenient for heat dissipation and ventilation. Through the coordination of the cylindrical stainless steel filter, support plate, time-controlled switch, blowing assembly, rotating drive assembly, cleaning and dredging assembly, drive motor and air pump, the time-controlled switch is used to pre-set the start and stop time and interval of the drive motor and the air pump according to the cleaning needs. The cylindrical stainless steel filter can be automatically and regularly back-blown from the inside to the outside for cleaning and dredging. Compared with simple vibration cleaning, the cleaning and dredging effect is improved, the vibration phenomenon is reduced, and the stability of use is improved.

[0020] The utility model is provided with a series of structures, which is convenient for automatically blowing air to dissipate heat for the transformer main body, can provide rain protection for the outer shell and the cylindrical stainless steel filter at the upper part, prevent rainwater from entering the cylindrical stainless steel filter, improve the stability of use, and is convenient for automatic and regular back-blowing cleaning and dredging of the cylindrical stainless steel filter from the inside to the outside. Compared with simple vibration cleaning, the cleaning and dredging effect is improved, the vibration phenomenon is reduced, and the stability of use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural schematic diagram of a transformer that is convenient for heat dissipation and ventilation proposed by the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the rain shield in a state where it is not installed;

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of a transformer that is convenient for heat dissipation and ventilation proposed by the utility model;

[0024] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A in the figure.

[0025] In the figure: 1. Shell; 101. Transformer body; 102. Exhaust hole; 103. Filter; 2. Rain cover; 3. Time switch; 4. Support plate; 5. Rectangular tube; 6. One-way valve; 7. Vertical pipe; 8. Back-blowing pipe head; 9. Air pump; 10. Driving motor; 11. Cylindrical stainless steel filter; 12. Fan; 13. Ventilation pipe; 14. Fixing box; 15. Blowing pipe; 16. Inner gear ring; 17. Gear. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] like Figures 1 to 4 As shown, a transformer that is convenient for heat dissipation and ventilation proposed in this embodiment includes a shell 1 and a transformer body 101 fixed on the inner wall at the bottom of the shell 1, a plurality of downwardly inclined exhaust holes 102 are provided on the inner walls on both sides of the shell 1, and a filter screen 103 is fixedly connected to the inner walls on both sides of the shell 1, and the filter screen 103 cooperates with the corresponding plurality of exhaust holes 102. The exhaust holes 102 are arranged in a downwardly inclined manner to ensure that the internal hot air is discharged while reducing the phenomenon of external rainwater splashing inward through the exhaust holes 102;

[0028] A rain shield 2 with a conical top structure is fixedly installed on the top of the outer shell 1, and two support plates 4 are arranged on the top of the outer shell 1, and the support plate 4 located below is fixedly installed on the top of the outer shell 1, wherein two support blocks are fixedly connected between the bottom of the support plate 4 located below and the top of the outer shell 1, which play the effect of fixedly supporting the support plate 4 below, and a cylindrical stainless steel filter screen 11 is rotatably installed between the two support plates 4, wherein the two support plates 4 are fixedly connected on one side close to each other, and the inner ring of the bearing is fixedly fitted on the outer side of the cylindrical stainless steel filter screen 11, which plays the effect of rotatably installing the cylindrical stainless steel filter screen 11, and a fan 12 is embedded and fixed on the right side of the bottom of the lower support plate 4, and the top of the fan 12 is an air inlet and is connected to the inside of the cylindrical stainless steel filter screen 11, and a scattering and blowing component is fixedly installed on the top inner wall of the outer shell 1, and the top of the scattering and blowing component extends to the top of the outer shell 1 and is connected to the wind The air outlet of the fan 12 is connected and fixed, a temperature sensor is fixedly connected to the top inner wall of the shell 1, and a controller electrically connected to the temperature sensor is built in the fan 12. The temperature sensor is used to monitor the temperature in the shell 1 in real time and transmit the temperature value to the controller. The controller is used to control the fan 12 to automatically start and close according to the preset start and close temperature values. Four supports are fixedly connected in a rectangular shape between the top of the shell 1 and the bottom of the rain shield 2. The cylindrical stainless steel filter 11 is located in the rain shield 2, which plays the role of using the rain shield 2 to shield the cylindrical stainless steel filter 11 from rain and prevent rainwater from entering the cylindrical stainless steel filter 11. The rain shield 2 is used to shield rainwater at the top. The blowing component is used to blow and cool the inside of the shell 1 when the fan 12 is started. The cylindrical stainless steel filter 11 is used to filter and intercept impurities in the gas when the fan 12 extracts external gas;

[0029] A time-controlled switch 3 is fixedly installed on the top of the shell 1, and a rotation drive assembly is fixedly sleeved in the cylindrical stainless steel filter 11. A drive motor 10 whose output shaft is fixedly connected to the rotation drive assembly is fixedly installed on the left side of the bottom of the lower support plate 4, wherein a movable through hole is opened on the left side of the bottom of the lower support plate 4 for the output shaft of the drive motor 10 to move through, the drive motor 10 is electrically connected to the time-controlled switch 3, and the rotation drive assembly is used to drive the cylindrical stainless steel filter 11 to rotate when the drive motor 10 is started; a cleaning and dredging assembly is fixedly connected between the two support plates 4, which is located in the cylindrical stainless steel filter 11 and cooperates with the inner wall on the left side thereof, and an air pump 9 whose air outlet is connected to the cleaning and dredging assembly is fixedly installed on the bottom of the lower support plate 4, and the air pump 9 is electrically connected to the time-controlled switch 3. The cleaning and dredging assembly is used to fully back-blow, clean and dredge the cylindrical stainless steel filter 11 from the inside to the outside when the air pump 9 is started and the cylindrical stainless steel filter 11 rotates.

[0030] Specifically, the blowing assembly includes a fixed box 14 fixedly connected to the top inner wall of the shell 1, a plurality of blowing pipes 15 are connected and fixed to the bottom of the fixed box 14, a ventilation pipe 13 is connected and fixed to the top of the fixed box 14, and the top of the ventilation pipe 13 is arranged as a hood-shaped structure and is connected and fixed to the air outlet of the fan 12; the fixed box 14, the blowing pipe 15 and the ventilation pipe 13 cooperate with each other, and when the fan 12 is started, external air is extracted through the cylindrical stainless steel filter 11, and supplied to the fixed box 14 through the ventilation pipe 13, and the gas is blown downward into the shell 1 through the plurality of blowing pipes 15 to blow and dissipate heat to the transformer main body 101.

[0031] Furthermore, the rotary drive assembly includes an inner gear ring 16 fixedly mounted in the cylindrical stainless steel filter 11, a gear 17 is meshed on the inner left side of the inner gear ring 16, and the bottom of the gear 17 is fixedly connected to the top of the output shaft of the drive motor 10; the inner gear ring 16 and the gear 17 are coordinated, and the time-controlled switch 3 is used to control the timing of the drive motor 10 to start and close, the drive motor 10 drives the gear 17 to rotate, and the gear 17 drives the inner gear ring 16 to rotate, and the rotation of the inner gear ring 16 is used to drive the cylindrical stainless steel filter 11 to rotate.

[0032] Furthermore, the cleaning and unblocking component includes a rectangular tube 5 fixedly connected between the two support plates 4, the air outlet of the air pump 9 extends into the rectangular tube 5 and is connected to the interior of the rectangular tube 5, the left side of the rectangular tube 5 is connected and fixed with a one-way valve 6, the left end of the one-way valve 6 is connected and fixed with a vertical pipe 7 with a blocking structure at the top and bottom, and the left side of the vertical pipe 7 is connected and fixed with a plurality of back-blowing pipe heads 8, the back-blowing pipe heads 8 are located in the cylindrical stainless steel filter 11 and cooperate with the inner wall on the left side thereof, and the fan 12 is located in the rectangular tube 5; the rectangular tube 5, the one-way valve 6, the vertical pipe 7 and the back-blowing pipe head 8 are provided in cooperation, and the air pump 9 is controlled by the time-controlled switch 3 to start and close regularly, and the air pump 9 supplies gas to the rectangular tube 5, and the gas is supplied into the vertical pipe 7 through the one-way valve 6, and then blown out to the left through multiple back-blowing pipe heads 8, and the gas blown from the inside to the left is used to realize the back-blowing cleaning of the rotating cylindrical stainless steel filter 11 from the inside to the outside, and the back-blowing cleaning is realized by blowing out the blockage in the filter pores of the cylindrical stainless steel filter 11 itself to perform dredging work.

[0033] The method of using this embodiment is as follows: using a temperature sensor to monitor the temperature inside the housing 1 in real time and transmit the temperature value to the controller, the controller controls the fan 12 to automatically start and close according to the preset start and close temperature value, when the fan 12 is started, external air is extracted through the cylindrical stainless steel filter 11, and supplied to the fixed box 14 through the ventilation pipe 13, the gas is blown downward into the housing 1 through a plurality of blowing pipes 15 to blow and dissipate heat to the transformer main body 101, and the hot air is discharged outward through a plurality of exhaust holes 102, so as to achieve the effect of automatically blowing and dissipating heat to the transformer main body 101, and the cylindrical stainless steel filter 11 filters and intercepts impurities in the gas when the external gas enters, so as to prevent a large amount of impurities from entering the interior and affecting the use;

[0034] The rain shield 2 is used to protect the outer shell 1 and the cylindrical stainless steel filter 11 from rain at the upper part, so as to prevent rainwater from entering the cylindrical stainless steel filter 11, thereby improving the stability of use. The time control switch 3 is used to pre-set the start and stop time and interval of the driving motor 10 and the air pump 9 according to the cleaning needs. When the cleaning time is reached, the time control switch 3 controls the driving motor 10 and the air pump 9 to start. When the driving motor 10 is turned on, the driving gear 17 rotates, and the gear 17 drives the cylindrical stainless steel filter 11 to rotate through the inner gear ring 16 meshing therewith. When the air pump 9 is turned on, air is supplied to the rectangular tube 5, and the air The liquid is supplied into the vertical pipe 7 through the one-way valve 6, and then blown out to the left through multiple back-blowing pipe heads 8. The gas blown out from the inside to the left is used to achieve comprehensive back-blowing cleaning of the rotating cylindrical stainless steel filter 11 from the inside to the outside. The back-blowing cleaning is used to blow out the blockage in the filter holes of the cylindrical stainless steel filter 11 itself, thereby achieving the effect of automatic back-blowing cleaning and dredging of the cylindrical stainless steel filter 11. Compared with simple vibration cleaning, the cleaning and dredging effect is improved, the vibration phenomenon is reduced, and the use stability is improved. When the closing time is reached, the time-controlled switch 3 controls the drive motor 10 and the air pump 9 to close.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A transformer that facilitates heat dissipation and ventilation, comprising a housing (1) and a transformer body (101) fixed to the inner wall of the bottom of the housing (1), characterized in that: A plurality of downwardly inclined exhaust holes (102) are provided on both inner walls of the housing (1), and a filter screen (103) is fixedly connected to both inner walls of the housing (1), and the filter screen (103) matches the corresponding plurality of exhaust holes (102); A rain shield (2) having a conical top structure is fixedly mounted on the top of the shell (1); two support plates (4) are arranged above the shell (1); the support plate (4) located at the bottom is fixedly mounted on the top of the shell (1); a cylindrical stainless steel filter (11) is rotatably mounted between the two support plates (4); a fan (12) is embedded and fixed on the right side of the bottom of the lower support plate (4); the top of the fan (12) is an air inlet and is connected to the inside of the cylindrical stainless steel filter (11); a diffusion and blowing assembly is fixedly mounted on the top inner wall of the shell (1); the top of the diffusion and blowing assembly extends to the top of the shell (1) and is connected and fixed to the air outlet of the fan (12); A time-controlled switch (3) is fixedly mounted on the top of the housing (1), a rotating drive assembly is fixedly sleeved inside the cylindrical stainless steel filter (11), a driving motor (10) whose output shaft is fixedly connected to the rotating drive assembly is fixedly mounted on the left side of the bottom of the support plate (4) below, and the driving motor (10) is electrically connected to the time-controlled switch (3); A cleaning and unblocking component is fixedly connected between the two support plates (4) and is located in the cylindrical stainless steel filter (11) and cooperates with the inner wall on the left side thereof. An air pump (9) whose air outlet is connected to the cleaning and unblocking component is fixedly installed at the bottom of the lower support plate (4). The air pump (9) is electrically connected to the time-controlled switch (3).

2. A transformer that facilitates heat dissipation and ventilation according to claim 1, characterized in that: The blowing assembly comprises a fixing box (14) fixedly connected to the top inner wall of the outer shell (1); a plurality of blowing pipes (15) are connected and fixed to the bottom of the fixing box (14); a ventilation pipe (13) is connected and fixed to the top of the fixing box (14); the top end of the ventilation pipe (13) is arranged in a hood-shaped structure and is connected and fixed to the air outlet of the fan (12).

3. A transformer that facilitates heat dissipation and ventilation according to claim 2, characterized in that: The rotary drive assembly comprises an inner gear ring (16) fixedly sleeved in a cylindrical stainless steel filter screen (11), a gear (17) meshing on the inner left side of the inner gear ring (16), and a bottom of the gear (17) fixedly connected to the top of the output shaft of the drive motor (10).

4. A transformer that facilitates heat dissipation and ventilation according to claim 3, characterized in that: The cleaning and unblocking assembly comprises a rectangular tube (5) fixedly connected between two support plates (4); the air outlet of the air pump (9) extends into the rectangular tube (5) and is connected to the interior of the rectangular tube (5); a one-way valve (6) is fixedly connected to the left side of the rectangular tube (5); a vertical tube (7) having a blocking structure at both the top and bottom ends is fixedly connected to the left end of the one-way valve (6); a plurality of back-blowing pipe heads (8) are fixedly connected to the left side of the vertical tube (7); the back-blowing pipe heads (8) are located in the cylindrical stainless steel filter (11) and cooperate with the inner wall on the left side thereof; and a fan (12) is located on the right side of the rectangular tube (5).

5. A transformer that facilitates heat dissipation and ventilation according to claim 1, characterized in that: A temperature sensor is fixedly connected to the top inner wall of the housing (1), and a controller electrically connected to the temperature sensor is built into the fan (12).

6. A transformer that facilitates heat dissipation and ventilation according to claim 1, characterized in that: Four supports are fixedly connected in a rectangular shape between the top of the housing (1) and the bottom of the rain shield (2), and a cylindrical stainless steel filter (11) is located inside the rain shield (2).

7. A transformer that facilitates heat dissipation and ventilation according to claim 1, characterized in that: Two support blocks are fixedly connected between the bottom of the support plate (4) located below and the top of the outer shell (1).

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