Anti-explosion noise-reduction dry-type transformer based on photovoltaic power generation

Abstract

The invention relates to the field of dry-type transformers, particularly discloses an explosion-proof noise-reduction dry-type transformer based on photovoltaic power generation, and aims at solving the problems that an existing dry-type transformer is high in requirement for a use environment, high in use cost and poor in explosion-proof noise-reduction performance. The dry-type transformer comprises a base, a dry-type transformer body, a support, a top cover, a corrugated sleeve shell, a first telescopic part, an opening, a cover plate, a sliding frame, a push rod, a first driving assembly, a frame body, a sliding channel opening, a waved plate, a rotating plate and a cooling fan, side frames are arranged at the two ends of the cooling fan, and the lower ends of the side frames are rotationally connected with dry powder nozzles in sliding fit with the waved plate through spring hinges; a second driving assembly is arranged on the frame body and used for driving the cooling fans on the two sides to move, and a damping assembly used for damping the dry-type transformer is further arranged on the base. According to the dry-type transformer, the use of a case can be avoided, the use cost is reduced, and meanwhile, the dry-type transformer has excellent explosion-proof and noise-reduction characteristics.

Description

Technical Field

[0001] The present invention relates to the field of dry-type transformers, in particular to a dry-type transformer based on photovoltaic power generation with explosion-proof and noise-reduction functions. Background Art

[0002] A dry-type transformer consists of two or more mutually insulated coils encased in a common iron core. When the high-voltage coil is supplied with a three-phase rated power frequency voltage, the current in the coil generates an alternating magnetic field in the iron core. According to the law of electromagnetic induction, this alternating magnetic field induces electric potentials of the same frequency in the high- and low-voltage coils. With this potential in the low-voltage coil, power can be supplied to the load. These transformers are primarily used in power systems, industrial production, commercial, and residential applications.

[0003] With the development of the photovoltaic industry, dry-type transformers have gradually been introduced into the photovoltaic power generation sector. However, dry-type transformers have strict environmental requirements for operation. They must be used indoors and typically require an external enclosure, resulting in high application costs. Furthermore, existing dry-type transformers lack excellent explosion-proof and noise-reduction properties, resulting in loud noise during operation and the risk of explosion.

[0004] The announcement number CN116978662A discloses "a dry-type transformer, comprising a transformer body, a frame and a shielding mechanism, wherein an installation cavity is provided inside the frame, the transformer body is provided in the installation cavity, and openings communicating with the installation cavity are provided on both side surfaces of the frame along the first direction; the shielding mechanism comprises a winding assembly and two baffles, the two baffles are respectively provided at the two openings, the baffles are provided with ventilation holes for air to enter and exit the installation cavity, the frame further comprises a top plate, the winding assembly comprises a winding roller, the winding roller is rotatably provided on the outer side of the top plate, one end of the two baffles is respectively connected to the winding roller to wind up the baffles. The two baffles are wound or unwound at the same time by the winding roller, so that the two baffles selectively cover the openings respectively, and at the same time the baffles can use the ventilation holes to supply air to enter and exit the installation cavity, so as to protect the transformer body without affecting the heat dissipation capacity of the heat converter body."

[0005] Although the above technical solution can protect dry-type transformers from dust and does not affect the heat dissipation effect, it still has a high cost of use and cannot effectively prevent explosions and reduce noise. Therefore, a photovoltaic-based explosion-proof and noise-reducing dry-type transformer is proposed. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the present invention proposes an explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation, which can effectively protect the dry-type transformer and at the same time improve the explosion-proof and noise-reduction performance of the dry-type transformer, thereby greatly reducing the use cost of the dry-type transformer.

[0007] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are:

[0008] A photovoltaic-based explosion-proof and noise-reducing dry-type transformer comprises a base, a dry-type transformer is mounted on the base, a bracket and a top cover are connected to the base, the top cover is connected to a corrugated shell, a telescopic member is connected to the top cover, and the telescopic member is connected to the lower end of the corrugated shell, a plurality of openings are provided on the side of the corrugated shell, a cover plate is rotatably connected in each of the openings, a slide is slidably connected to the base, and a push rod is connected to the slide, the push rod and the cover plate are slidably engaged and contacted, a drive assembly is provided on the base, and the drive assembly is used to drive the slide to slide;

[0009] The bracket is connected to a frame, a slide opening is provided on the frame, and a wave plate is slidably connected in the slide opening, a rotating plate is rotatably connected between the slide and the wave plate, cooling fans are symmetrically slidably provided at both ends of the frame, and side frames are provided at both ends of the cooling fan, and the lower end of the side frame is rotatably connected to a dry powder spray head that slides in contact with the wave plate through a spring hinge, a driving component 2 is provided on the frame, and the driving component 2 is used to drive the cooling fans on both sides to move, and a shock-absorbing component for reducing vibration of the dry-type transformer is also provided on the base.

[0010] Preferably, the corrugated shell is arranged on the outside of the dry-type transformer, the bracket and the telescopic member.

[0011] Preferably, the driving component includes a mounting seat, a two-way telescopic member, and a slide plate. The mounting seat is connected to the base, the two-way telescopic member is embedded in the mounting seat, the slide plate is connected to the output ends on both sides of the two-way telescopic member, and the slide is connected to the slide plate.

[0012] Preferably, the base is connected to a guide slide rod 1, the slide sliding sleeve is arranged on the outer side of the guide slide rod 1, the slide is also connected to a concave frame, the push rod is connected to the side of the concave frame away from the slide, and is arranged in groups of two up and down, and the openings are also arranged in groups of two at the trough of the corrugated shell, and correspond to the concave frame.

[0013] Preferably, the inner wall of the opening is connected with a baffle, and the baffle cooperates with and interferes with the cover plate.

[0014] Preferably, the second drive component includes a servo motor, a bidirectional screw rod, a mounting frame, and a sleeve 1. The servo motor is installed on the outside of one end of the frame. The bidirectional screw rod is installed at the output end of the servo motor, and the other end is a rotating sleeve passing through the frame. The mounting frame is arranged between the bidirectional screw rods parallel on both sides. The sleeve 1 is connected to both sides of the mounting frame and is threaded with the bidirectional screw rod. The cooling fan is installed on the lower side of the mounting frame.

[0015] Preferably, a slider is connected to the wave plate, and the slider extends through the slideway to the outside of the frame. The rotating plate is rotatably connected between the slide and the extended end of the slider, and the two-way screw is arranged with opposite thread rotation directions at both ends along the axial direction.

[0016] Preferably, both sides of the frame are connected to a guide slide rod 2, the extended end of the slider is connected to a sleeve 2, and is slidably sleeved on the outside of the guide slide rod 2 through the sleeve 2, and a temperature, humidity and camera monitoring module is also installed on one side of the dry powder nozzle.

[0017] Preferably, the shock-absorbing assembly includes a square sleeve, a square seat, a spring, and a rubber shock-absorbing column. A plurality of the square sleeve arrays are connected to the base. The square seat is slidably sleeved in the square sleeve, and a spring is connected between each side surface of the square seat and the inner wall of the square sleeve. The rubber shock-absorbing column is connected to the square seat and extends to the outside of the square sleeve. The dry-type transformer is installed on the upper end of the rubber shock-absorbing column.

[0018] Preferably, the base is connected to a platform for supporting the lower end of the corrugated casing, and a cable outlet is provided on the platform.

[0019] The beneficial effects of the present invention are:

[0020] 1. The technical solution of the present invention is that the telescopic member 1 can drive the corrugated casing to fold upward to facilitate the inspection and installation of the internal structural components. When the corrugated casing is driven to unfold downward, the internal structural components can be protected, which can avoid the cost increase caused by installing a chassis on the outside. At the same time, during the casing, if the dry-type transformer generates a lot of heat, the slide can be driven by the driving assembly to move, thereby driving the push rod to push the cover to rotate, open the opening, and cooperate with the cooling fan to achieve rapid heat dissipation and exhaust;

[0021] 2. The technical solution of the present invention can drive the mounting frame to slide the cooling fan through the second driving component. During the process, the dry powder nozzle can achieve reciprocating swing by sliding and contacting with the edge of the corrugated plate. When a fire occurs, the corrugated shell is ensured to be in a state of downward expansion and protection, and each opening is also closed. Then, the reciprocating swing of the dry powder nozzle can realize dry powder spraying on the dry-type transformer and related components below to extinguish the fire, thereby avoiding explosion and effectively improving the explosion-proof characteristics.

[0022] 3. The technical solution of the present invention can drive the rotating plate to rotate by sliding the two sides close to each other, and then push the wave plate to slide in the slide mouth, so as to change the position of the crest and trough of the wave plate, and realize the adjustment of the reciprocating swing path of the dry powder nozzle, so as to realize comprehensive dry powder spraying when a fire occurs, further improve the explosion-proof performance, and at the same time, through the setting of the shock-absorbing component, it can also reduce the noise of normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 is a cross-sectional view of the structure of the present invention;

[0025] Figure 3 is a cross-sectional view of the side structure of the present invention;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the present invention without a top cover;

[0028] Figure 6 This is a schematic diagram of the structure inside the corrugated shell of the present invention;

[0029] Figure 7 This is a schematic structural diagram of a driving component 1 of the present invention;

[0030] Figure 8 Schematic diagram of the relevant structure on the slide of the present invention

[0031] Figure 9 This is a schematic structural diagram of the driving component 2 of the present invention;

[0032] Figure 10 A schematic diagram of the relevant structure of the wave plate of the present invention;

[0033] Figure 11 Schematic diagram of the structure of the shock absorbing assembly of the present invention;

[0034] Figure 12 Schematic diagram of the internal structure of the shock absorbing assembly of the present invention.

[0035] Description of reference numerals:

[0036] 1. Base; 2. Bracket; 3. Top cover; 4. Dry-type transformer; 5. Corrugated casing; 6. Telescopic part 1; 7. Opening; 8. Cover plate; 9. Mounting seat; 10. Bidirectional telescopic part; 11. Slide plate; 12. Guide slide bar 1; 13. Slide; 14. Concave frame; 15. Push rod; 16. Baffle; 17. Frame; 18. Slideway opening; 19. Servo motor; 20. Bidirectional screw rod; 21. Mounting frame; 22. Sleeve 1; 23. Cooling fan; 24. Slider; 25. Corrugated plate; 26. Rotating plate; 27. Side frame; 28. Dry powder nozzle; 29. ​​Temperature, humidity and camera monitoring module; 30. Guide slide bar 2; 31. Sleeve 2; 32. Square sleeve; 33. Square seat; 34. Spring; 35. Rubber shock-absorbing column; 36. Platform; 37. Cable outlet. DETAILED DESCRIPTION

[0037] The following will be combined with the Figure 1 To the attached Figure 12 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0038] Example 1:

[0039] like Figure 1-6 As shown, the present invention discloses an explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation, comprising a base 1, a dry-type transformer 4 being mounted on the base 1, a bracket 2 and a top cover 3 being connected to the base 1, a corrugated shell 5 being connected to the top cover 3, a telescopic member 6 being connected to the top cover 3, and the telescopic member 6 being connected to the lower end of the corrugated shell 5, a plurality of openings 7 being provided on the side of the corrugated shell 5, a cover plate 8 being rotatably connected in each opening 7, a slide 13 being slidably connected to the base 1, and a push rod 15 being connected to the slide 13, the push rod 15 being slidably fitted and in conflict with the cover plate 8, a drive component 1 being provided on the base 1, and the drive component 1 being used to drive the slide 13 to slide;

[0040] The top cover 3 is connected to the upper end of the bracket 2, and the dry-type transformer 4 is an existing finished product.

[0041] The bracket 2 is connected to a frame 17, which has a slide opening 18 on it, and a wave plate 25 is slidably connected in the slide opening 18. A rotating plate 26 is rotatably connected between the slide 13 and the wave plate 25. Cooling fans 23 are symmetrically slidably provided at both ends of the frame 17, and side frames 27 are provided at both ends of the cooling fan 23. The lower end of the side frame 27 is rotatably connected to a dry powder nozzle 28 that slides in contact with the wave plate 25 through a spring hinge. A drive component 2 is provided on the frame 17, and the drive component 2 is used to drive the cooling fans 23 on both sides to move. A shock-absorbing component for reducing the vibration of the dry-type transformer 4 is also provided on the base 1.

[0042] The corrugated shell 5 is sleeved on the outside of the dry-type transformer 4, the bracket 2 and the telescopic member 6, so that the dry-type transformer 4, the bracket 2, the telescopic member 6 and the related structural components on the frame 17 inside can be effectively protected by the sleeve of the corrugated shell 5, avoiding the need to sleeve a chassis on the outside of the dry-type transformer 4 when in use, which leads to increased costs.

[0043] The base 1 is connected to a platform 36 for supporting the lower end of the corrugated shell 5, and a cable outlet 37 is provided on the platform 36. The platform 36 can ensure that the lower end of the corrugated shell 5 can fit therewith, and the cable outlet 37 can facilitate the arrangement of cables connected to the structural components inside the corrugated shell 5.

[0044] Example 2:

[0045] like Figure 1-8 As shown, the present invention discloses an explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation. Compared with the first embodiment, this embodiment discloses the structure of the driving component one.

[0046] The driving component 1 includes a mounting seat 9, a two-way telescopic member 10, and a slide 11. The mounting seat 9 is connected to the base 1, the two-way telescopic member 10 is embedded in the mounting seat 9, the slide 11 is connected to the output ends on both sides of the two-way telescopic member 10, and the slide 13 is connected to the slide 11. By driving the two-way telescopic member 10, the slides 13 on both sides can be driven to move closer to or away from each other, so as to drive the push rod 15 to push the cover 8 to open the opening 7, which is convenient for heat dissipation and exhaust.

[0047] A guide slide 12 is connected to the base 1, and the slide 11 is slidably sleeved on the outer side of the guide slide 12. A concave frame 14 is also connected to the slide 13. The push rod 15 is connected to the side of the concave frame 14 away from the slide 13, and is arranged in groups of two up and down. The openings 7 are also arranged in groups of two at the trough of the corrugated shell 5 and correspond to the concave frame 14. The setting of the guide slide 12 can ensure the stable sliding of the slide 11 and the slide 13. At the same time, the openings 7 are arranged in groups of two at the trough of the corrugated shell 5, so that when the cover plate 8 rotatably connected therein is pushed open by the push rod 15, the internal hot air flow can be easily discharged.

[0048] The inner wall of the opening 7 is connected to a baffle 16, which cooperates with the cover plate 8. The setting of the baffle 16 makes it possible for each cover plate 8 to rotate under the action of the spring hinge to conflict with the baffle 16 in the absence of the push rod 15, thereby closing the opening 7.

[0049] Example 3:

[0050] like Figure 1-10 As shown, the present invention discloses an explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation. Compared with the second embodiment, this embodiment discloses the structure of the second driving component.

[0051] Drive component 2 includes a servo motor 19, a bidirectional screw rod 20, a mounting frame 21, and a sleeve 22. The servo motor 19 is mounted on the outside of one end of the frame 17. The bidirectional screw rod 20 is mounted on the output end of the servo motor 19, and the other end is a rotating sleeve passing through the frame 17. The mounting frame 21 is set between the bidirectional screw rods 20 parallel on both sides. The sleeve 22 is connected to both sides of the mounting frame 21 and is threadedly mounted with the bidirectional screw rod 20. The cooling fan 23 is installed on the lower side of the mounting frame 21.

[0052] The wave plate 25 is connected to a slider 24 , which passes through the slideway opening 18 and extends to the outside of the frame 17 . The rotating plate 26 is rotatably connected between the slide 13 and the extended end of the slider 24 . The two-way screw rod 20 is arranged with opposite threads at both ends along the axial direction.

[0053] In this way, by starting the servo motor 19 to drive the bidirectional screw rod 20 to rotate, the mounting frames 21 on both sides and the cooling fans 23 can be driven to slide closer to or away from each other, and at the same time, the dry powder spray head 28 can be driven to slide in contact with the edge of the wave plate 25 during the process to achieve reciprocating swing. In this way, when the corrugated shell 5 is in the expanded sleeve state, when a fire occurs inside, the opening 7 is first closed by rotating the cover plate 8, and the cooling fan 23 is turned off, and the dry powder spray head 28 is turned on at the same time, so as to achieve reciprocating swing spraying of dry powder for fire extinguishing, thereby avoiding explosion caused by continuous burning of the fire, and effectively improving the explosion-proof performance;

[0054] During the process, the driving component can also be used to drive the slides 13 on both sides to approach each other, thereby driving the rotating plates 26 on both sides to rotate, pushing the slider 24 to slide in the slide mouth 18, thereby driving the wave plate 25 to slide, changing the position of its crest and trough, and then changing the path of the dry powder nozzle 28 in the reciprocating swing, thereby improving its uniformity when spraying dry powder.

[0055] Both sides of the frame 17 are connected to a guide slide rod 2 30, and the extended end of the slider 24 is connected to a sleeve 2 31, and is slidably mounted on the outside of the guide slide rod 2 30 through the sleeve 2 31. A temperature, humidity and camera monitoring module 29 is also installed on one side of the dry powder nozzle 28. The sliding arrangement of the sleeve 2 31 and the guide slide rod 2 30 can effectively stabilize the sliding of the slider 24 and the wave plate 25.

[0056] Example 4:

[0057] like Figure 1-12 As shown, the present invention discloses an explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation. Compared with the third embodiment, this embodiment discloses the structure of the shock-absorbing component.

[0058] The shock-absorbing assembly includes a square sleeve 32, a square seat 33, a spring 34, and a rubber shock-absorbing column 35. A plurality of square sleeves 32 are connected to the base 1 in an array. The square seat 33 is slidably sleeved in the square sleeve 32, and a spring 34 is connected between each side of the square seat 33 and the inner wall of the square sleeve 32. The rubber shock-absorbing column 35 is connected to the square seat 33 and extends to the outside of the square sleeve 32. The dry-type transformer 4 is installed on the upper end of the rubber shock-absorbing column 35.

[0059] When the dry-type transformer 4 vibrates during operation, the compression of the spring 34 can be buffered by the rubber shock-absorbing column 35 and the square seat 33, thereby reducing noise.

[0060] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. An explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation, comprising a base (1), a dry-type transformer (4) mounted on the base (1), a bracket (2) and a top cover (3) connected to the base (1), characterized in that: The top cover (3) is connected to a corrugated shell (5), the top cover (3) is connected to a telescopic member (6), and the telescopic member (6) is connected to the lower end of the corrugated shell (5), a plurality of openings (7) are provided on the side of the corrugated shell (5), and a cover plate (8) is rotatably connected in each of the openings (7), a slide (13) is slidably connected to the base (1), and a push rod (15) is connected to the slide (13), and the push rod (15) and the cover plate (8) are slidably fitted and contacted, and a driving component (1) is provided on the base (1), and the driving component (1) is used to drive the slide (13) to slide; The bracket (2) is connected to a frame (17), a slide opening (18) is provided on the frame (17), and a wave plate (25) is slidably connected in the slide opening (18), a rotating plate (26) is rotatably connected between the slide (13) and the wave plate (25), cooling fans (23) are symmetrically slidably provided at both ends of the frame (17), and side frames (27) are provided at both ends of the cooling fan (23), and the lower end of the side frame (27) is rotatably connected to a dry powder nozzle (28) that is slidably fitted with the wave plate (25), and a driving component 2 is provided on the frame (17), and the driving component 2 is used to drive the cooling fans (23) on both sides to move. The base (1) is also provided with a shock-absorbing component for shock-absorbing the dry-type transformer (4).

2. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 1, characterized in that: The corrugated casing (5) is sleeved on the outside of the dry-type transformer (4), the bracket (2) and the telescopic member (6).

3. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 1, characterized in that: The driving assembly 1 comprises a mounting seat (9), a bidirectional telescopic member (10), and a slide plate (11); the mounting seat (9) is connected to the base (1); the bidirectional telescopic member (10) is embedded in the mounting seat (9); the slide plate (11) is connected to the output ends on both sides of the bidirectional telescopic member (10); and the slide plate (13) is connected to the slide plate (11).

4. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 3, characterized in that: The base (1) is connected to a guide slide bar (12), the slide plate (11) is slidably sleeved on the outer side of the guide slide bar (12), the slide (13) is also connected to a concave frame (14), the push rod (15) is connected to the side of the concave frame (14) away from the slide (13), and is arranged in groups of two up and down, and the openings (7) are also arranged in groups of two at the trough of the corrugated shell (5) and correspond to the concave frame (14).

5. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 4, characterized in that: The inner wall of the opening (7) is connected to a baffle (16), and the baffle (16) cooperates with and contacts the cover plate (8).

6. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 1, characterized in that: The driving component 2 includes a servo motor (19), a bidirectional screw rod (20), a mounting frame (21), and a sleeve 1 (22). The servo motor (19) is mounted on the outside of one end of the frame (17). The bidirectional screw rod (20) is mounted on the output end of the servo motor (19), and the other end is rotatably mounted through the frame (17). The mounting frame (21) is set between the bidirectional screw rods (20) parallel to each other on both sides. The sleeve 1 (22) is connected to both sides of the mounting frame (21) and is threadedly mounted with the bidirectional screw rod (20). The cooling fan (23) is mounted on the lower side of the mounting frame (21).

7. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 6, characterized in that: The wave plate (25) is connected to a slider (24), which passes through the slideway opening (18) and extends to the outside of the frame (17). The rotating plate (26) is rotatably connected between the slide (13) and the extended end of the slider (24). The two-way screw rod (20) is arranged with the threads at both ends of the axial direction in opposite directions.

8. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 7, characterized in that: Both sides of the frame (17) are connected to the second guide slide bar (30), the extended end of the slider (24) is connected to the second sleeve (31), and is slidably mounted on the outer side of the second guide slide bar (30) through the second sleeve (31), and a temperature, humidity and camera monitoring module (29) is also installed on one side of the dry powder spray head (28).

9. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 1, characterized in that: The shock absorbing assembly comprises a square sleeve (32), a square seat (33), a spring (34), and a rubber shock absorbing column (35). A plurality of square sleeves (32) are connected to the base (1) in an array. The square seat (33) is slidably sleeved in the square sleeve (32), and a spring (34) is connected between each side surface of the square seat (33) and the inner wall of the square sleeve (32). The rubber shock absorbing column (35) is connected to the square seat (33) and extends to the outside of the square sleeve (32). The dry-type transformer (4) is installed on the upper end of the rubber shock absorbing column (35).

10. The explosion-proof and noise-reducing dry-type transformer based on photovoltaic power generation according to claim 1, characterized in that: The base (1) is connected to a platform (36) for supporting the lower end of the corrugated casing (5), and a cable outlet (37) is provided on the platform (36).

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