CN113314300A

CN113314300A - Adjustable oil-immersed power transformer

Info

Publication number: CN113314300A
Application number: CN202110511735.0A
Authority: CN
Inventors: 孙国平; 曲成成; 王成
Original assignee: Jiang Su Zhongrong Technology Co ltd
Current assignee: Jiang Su Zhongrong Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-08-27

Abstract

The invention discloses an adjustable oil-immersed power transformer, which comprises a power transformer outer box and a power transformer inner core, wherein the power transformer inner core is arranged inside the power transformer outer box, a box body fixing seat is arranged at the bottom end of the power transformer outer box, two groups of I-shaped rods are welded at the bottom end of the box body fixing seat, the I-shaped rods are connected onto an installation rod through bolts, two ends of the installation rod are connected onto a side edge installation frame, a wire rod fixing frame is arranged on the outer wall of the side edge installation frame, the box body fixing seat is slidably arranged on the side edge installation frame, and a heat dissipation adjusting structure is arranged on the power transformer outer box. The mounting height can be adjusted according to the requirement, and the mounting height is reduced to a proper height during later-stage maintenance.

Description

Adjustable oil-immersed power transformer

Technical Field

The invention relates to the technical field of power transformers, in particular to an adjustable oil immersed power transformer.

Background

Distribution transformers are important devices in power supply and distribution systems of civil buildings, and distribution transformers are various, among which oil-immersed power transformers are commonly used, and oil-immersed power transformers refer to transformers in which iron cores and windings are immersed in insulating oil, and can be used indoors and outdoors due to their characteristics.

When oil-immersed power transformer installs outdoors, mainly install on the wire pole, the oil-immersed power transformer position after the installation is confirmed, and the later stage can't carry out position control according to the demand, and oil-immersed power transformer during operation temperature is high moreover, but the heat dissipation channel bore is little for the radiating effect is poor, for this reason, we propose an adjustable oil-immersed power transformer.

Disclosure of Invention

The present invention is directed to an adjustable oil-immersed power transformer, so as to solve the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an oil-immersed power transformer with adjustable, includes power transformer outer container and power transformer inner core, the power transformer inner core is installed inside the power transformer outer container, the box fixing base is installed to the bottom of power transformer outer container, two sets of worker's type poles of bottom welding of box fixing base, worker's type pole passes through bolted connection on the installation pole, the both ends of installation pole are connected on the side mounting bracket, bolted connection fixed head between side mounting bracket and the installation pole, the line pole mount is installed to the outer wall of side mounting bracket, box fixing base slidable mounting is on the side mounting bracket, be equipped with heat dissipation regulation structure on the power transformer outer container, the top of power transformer outer container is provided with the oil tank, and oil tank and power transformer inner core intercommunication.

As further preferable in the present technical solution: the heat dissipation adjusting structure comprises a movable side plate, cooling fins, a strip-shaped groove, an electric push rod and a temperature sensor, wherein the back face of the movable side plate is connected with the electric push rod, the bottom of the electric push rod is fixed on the inner core of the power transformer, the temperature sensor is electrically connected with the electric push rod, the strip-shaped groove is formed in the movable side plate, the cooling fins are provided with multiple groups, and the cooling fins penetrate through the strip-shaped groove of the movable side plate.

As further preferable in the present technical solution: the detection end of the temperature sensor is attached to the surface of the inner core of the power transformer, the radiating fins are vertically arranged on the surface of the inner core of the power transformer, and the movable side plates are provided with two groups.

As further preferable in the present technical solution: the surface of activity curb plate inner wall is provided with the sealing strip, the seal groove has been seted up to corresponding position on the power transformer outer container, the sealing strip is arranged in the seal groove.

As further preferable in the present technical solution: the box fixing base comprises a transverse rod and a vertical rod, the transverse rod and the vertical rod are both arranged in two groups, the two ends of the transverse rod are connected to the vertical rod, the outer wall of the vertical rod is provided with a sliding strip, a sliding groove is formed in the side mounting frame, and the sliding strip is slidably mounted in the sliding groove.

As further preferable in the present technical solution: the line pole mount includes fixation nut, line pole dead lever, arc frame and threaded connection pole, line pole dead lever and arc frame all are provided with two sets ofly, the one end of line pole dead lever is fixed on the side mounting bracket, and two sets of arc framves are arranged in between two sets of line pole dead levers, and form circular chamber between the arc frame, threaded connection pole screw thread runs through line pole dead lever and arc frame, and is connected fixation nut between threaded connection pole and line pole dead lever, the arc frame.

As further preferable in the present technical solution: the top of power transformer outer container is connected with the support frame, and the support frame distributes in four corners of power transformer outer container, the top installation protection canopy of support frame, and the slope of protection canopy sets up.

The invention provides an adjustable oil-immersed power transformer, which has the following beneficial effects:

(1) according to the invention, the sliding strips are arranged outside the box body fixing seat, and meanwhile, the two groups of sliding grooves are formed in the side edge mounting rack, and the sliding strips are slidably mounted in the sliding grooves, so that the box body fixing seat can slide on the side edge mounting rack, the mounting height of the outer box of the power transformer can be adjusted according to requirements, and the outer box of the power transformer can be lowered to a proper height when later-stage maintenance is facilitated, and the outer box of the power transformer is prevented from directly falling off after the fixing head is detached, and the safety is improved.

(2) According to the invention, the heat dissipation adjusting structure is arranged, the electric push rod for adjusting the position of the movable side plate by the heat dissipation adjusting structure is electrically connected with the temperature sensor, when the temperature is at the conventional temperature, the heat dissipation can be carried out by utilizing a plurality of groups of heat dissipation fins, when the temperature is too high, the electric push rod is started, and the movable side plate is driven to move forwards by utilizing the electric push rod, so that the movable side plate is far away from the outer box of the power transformer, the ventilation aperture is effectively increased, and the purpose of rapid heat dissipation is achieved.

(3) According to the invention, the outer box of the power transformer is arranged on the two groups of side edge mounting frames, and the plurality of groups of wire pole fixing frames are connected to the outer sides of the side edge mounting frames, so that when the outer box of the power transformer needs to be arranged between the wire poles, the outer box of the power transformer can be directly arranged by using the wire pole fixing frames, and can also be directly fixed on the ground or an article by using the side edge mounting frames, so that the bottom of the outer box of the power transformer is provided with a space, and the outer box of the power transformer is prevented from being affected with damp.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the outer case of the power transformer of the present invention;

FIG. 3 is a schematic view of the mounting and connecting structure of the side mounting rack and the box body fixing seat of the present invention;

fig. 4 is a schematic structural view of the sliding groove of the side mounting bracket of the present invention.

In the figure: 1. an outer case of the power transformer; 2. a side mounting rack; 3. a wire rod fixing frame; 4. a box body fixing seat; 5. mounting a rod; 6. a shaping rod; 7. a fixed head; 8. a movable side plate; 9. an oil tank; 10. a support frame; 11. a protection shed; 12. a heat sink; 13. a strip-shaped groove; 14. an inner core of a power transformer; 15. an electric push rod; 16. a temperature sensor; 17. a heat dissipation adjustment structure; 18. a sealing strip; 19. a sealing groove; 20. fixing a nut; 21. a transverse bar; 22. a vertical rod; 23. a slide bar; 24. a sliding groove; 25. a wire rod fixing rod; 26. an arc-shaped frame; 27. a threaded connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the present invention provides a technical solution: the utility model provides an adjustable oil-immersed power transformer, including power transformer outer container 1 and power transformer inner core 14, power transformer inner core 14 is installed inside power transformer outer container 1, box fixing base 4 is installed to the bottom of power transformer outer container 1, two sets of I-shaped pole 6 of box fixing base 4's bottom welding, I-shaped pole 6 passes through bolted connection on installation pole 5, the both ends of installation pole 5 are connected on side mounting bracket 2, bolted connection fixed head 7 between side mounting bracket 2 and the installation pole 5, line pole mount 3 is installed to the outer wall of

side mounting bracket

2, 4 slidable mounting of box fixing base are on side mounting bracket 2, be equipped with heat dissipation regulation structure 17 on the power transformer outer container 1, the top of power transformer outer container 1 is provided with oil tank 9, and

oil tank

9 and 14 intercommunications of power transformer inner core.

In this embodiment, specifically: the heat dissipation adjusting structure 17 comprises a movable side plate 8, heat radiating fins 12, a strip-shaped groove 13, an electric push rod 15 and a temperature sensor 16, wherein the back surface of the movable side plate 8 is connected with the electric push rod 15, the bottom of the electric push rod 15 is fixed on an inner core 14 of the power transformer, the temperature sensor 16 is electrically connected with the electric push rod 15, the strip-shaped groove 13 is arranged on the movable side plate 8, the heat radiating fins 12 are provided with a plurality of groups, the heat radiating fins 12 penetrate through the strip-shaped groove 13 of the movable side plate 8, the detection end of the temperature sensor 16 is attached to the surface of the inner core 14 of the power transformer, the heat radiating fins 12 are vertically arranged on the surface of the inner core 14 of the power transformer, the movable side plate 8 is provided with two groups, when the temperature detected by the temperature is lower than a set value, the heat radiating can be directly carried out by using the plurality of groups of heat radiating fins 12, when the temperature is too high, the electric push rod 15 is started, the electric push rod 15 is stretched to drive the movable side plate 8 to move forwards, at the moment, an opening is arranged between the movable side plate 8 and the outer box 1 of the power transformer, therefore, the ventilation caliber is effectively increased, and after the movable side plates 8 on the two sides are opened, the inside circulation can be effectively increased, and the purpose of rapid heat dissipation is achieved.

In this embodiment, specifically: the surface of the inner wall of the movable side plate 8 is provided with a sealing strip 18, a sealing groove 19 is formed in a corresponding position on the power transformer outer box 1, the sealing strip 18 is arranged in the sealing groove 19, and when the movable side plate 8 is buckled with the power transformer outer box 1 in use, the movable side plate has good sealing performance under the action of the sealing strip 18 and the sealing groove 19.

In this embodiment, specifically: box fixing base 4 includes horizontal pole 21 and vertical pole 22, horizontal pole 21 and vertical pole 22 all set up two sets ofly, and the both ends of horizontal pole 21 are connected on vertical pole 22, the outer wall of vertical pole 22 is provided with slide bar 23, sliding tray 24 has been seted up on the side mounting bracket 2, slide bar 23 slidable mounting is in sliding tray 24, because 4 slidable mounting of box fixing base are at side mounting bracket 2, the later stage can be according to the mounting height of demand regulation power transformer outer container 1, also when being convenient for later stage maintenance, and after the bolt between fixed head 7 and side mounting bracket 2 took off, power transformer outer container 1 received sliding tray 24's restriction, be difficult for directly dropping, increase the security.

In this embodiment, specifically: the line pole fixing frame 3 comprises a fixing nut 20, line pole fixing rods 25, arc-shaped frames 26 and threaded connecting rods 27, wherein two groups of line pole fixing rods 25 and two groups of arc-shaped frames 26 are arranged, one end of each line pole fixing rod 25 is fixed on the side edge mounting frame 2, the two groups of arc-shaped frames 26 are arranged between the two groups of line pole fixing rods 25, and a circular cavity is formed between the arc-shaped frames 26, the threaded connecting rod 27 is threaded through the wire rod fixing rod 25 and the arc-shaped frames 26, and the threaded connecting rod 27, the wire rod fixing rod 25 and the arc-shaped frames 26 are connected with the fixing nut 20, when in installation, the two groups of arc-shaped frames 26 are buckled on the wire rod, then two groups of wire rod fixing rods 25 are inserted outside the arc-shaped frame 26, then the threaded connecting rods 27 are threaded through the aligned mounting holes on the wire rod fixing rods 25 and the arc-shaped frame 26, and is fixed by a fixing nut 20 at the joint of the threaded connecting rod 27, the arc-shaped frame 26 and the wire rod fixing rod 25.

In this embodiment, specifically: the top of power transformer outer container 1 is connected with support frame 10, and support frame 10 distributes in four corners of power transformer outer container 1, and protection canopy 11 is installed on the top of support frame 10, and protection canopy 11 slope sets up, and during the use, the top of power transformer outer container 1 is protected to usable protection canopy 11 of erectting.

It should be noted that, during operation, because the power transformer outer box 1 is installed on the box fixing seat 4, a proper installation hole is selected on the side edge installation frame 2, then the installation rod 5 connected with the bottom of the box fixing seat 4 by the I-shaped rod 6 is installed on the side edge installation frame 2 through the bolt and the fixing head 7, the installation height of the power transformer outer box 1 can be adjusted according to requirements, when the power transformer outer box is installed on a wire rod, two groups of arc frames 26 are buckled on the wire rod, then the wire rod fixing rod 25 is inserted outside the arc frames 26, then the thread connecting rod 27 penetrates through the wire rod fixing rod 25 and the arc frames 26 and is fixed between the thread connecting rod 27 and the arc frames 26 and between the wire rod fixing rods 25 by the fixing nuts 20, when the power transformer is fixed on an object and the ground, the bottom end of the side edge installation frame 2 can be directly fixed on the object and the ground, at the moment, the bottom of the power transformer outer box 1 has a space to achieve a damp-proof effect, two installation modes are adopted, the power transformer outer box is suitable for different installation environments, wherein the outer wall of the box fixing seat 4 is fixedly connected with a sliding strip 23, two groups of sliding grooves 24 are formed in the side edge installation rack 2, the sliding strip 23 is slidably installed in the sliding grooves 24, so that the box fixing seat 4 can slide on the side edge installation rack 2, when the installation height needs to be adjusted, a bolt between the fixing head 7 and the side edge installation rack 2 is taken down, the power transformer outer box 1 can slide up and down, after the position is adjusted to a proper position, the fixing can be carried out, so that the installation height of the power transformer outer box 1 can be adjusted according to requirements, and the later-stage maintenance is convenient, wherein after the bolt between the fixing head 7 and the side edge installation rack 2 is taken down, the power transformer outer box 1 is limited by the sliding grooves 24, difficult direct dropping, increase the security, through set up detachable activity curb plate 8 on power transformer outer container 1, and will adjust the electric push rod 15 and the 16 electric connection of temperature-sensing ware of activity curb plate 8 position, when the temperature that detects is less than the setting value, can directly utilize multiunit fin 12 to dispel the heat, when the high temperature, start electric push rod 15, electric push rod 15 extends and drives activity curb plate 8 and move forward, the opening has between activity curb plate 8 and the power transformer outer container 1 this moment, thereby effectual increase ventilation bore, the back is all opened to the activity curb plate 8 of both sides, can effectually increase inside circulation, reach quick radiating purpose.

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

Claims

1. The utility model provides an oily power transformer of adjustable, includes power transformer outer container (1) and power transformer inner core (14), its characterized in that: the power transformer inner core (14) is arranged inside the power transformer outer box (1), a box body fixing seat (4) is arranged at the bottom end of the power transformer outer box (1), two groups of I-shaped rods (6) are welded at the bottom end of the box body fixing seat (4), the I-shaped rods (6) are connected on the mounting rod (5) through bolts, the two ends of the mounting rod (5) are connected to the side mounting rack (2), a fixing head (7) is connected between the side mounting rack (2) and the mounting rod (5) through a bolt, the outer wall of the side edge mounting rack (2) is provided with a line pole fixing rack (3), the box body fixing seat (4) is slidably arranged on the side edge mounting rack (2), a heat dissipation adjusting structure (17) is arranged on the outer box (1) of the power transformer, an oil tank (9) is arranged at the top end of the outer box (1) of the power transformer, and the oil tank (9) is communicated with the inner core (14) of the power transformer.

2. The adjustable oil-filled power transformer according to claim 1, wherein: heat dissipation regulation structure (17) are including activity curb plate (8), fin (12), bar groove (13), electric push rod (15) and temperature-sensing ware (16), the back and electric push rod (15) of activity curb plate (8) are connected, the bottom of electric push rod (15) is fixed on power transformer inner core (14), temperature-sensing ware (16) and electric push rod (15) electric connection, bar groove (13) are seted up on activity curb plate (8), fin (12) are provided with the multiunit, and fin (12) alternate bar groove (13) of activity curb plate (8).

3. An adjustable oil-filled power transformer according to claim 2, characterised in that: the detection end of the temperature sensor (16) is attached to the surface of the power transformer inner core (14), the radiating fins (12) are vertically arranged on the surface of the power transformer inner core (14), and the movable side plates (8) are provided with two groups.

4. An adjustable oil-filled power transformer according to claim 2, characterised in that: the surface of activity curb plate (8) inner wall is provided with sealing strip (18), seal groove (19) have been seted up to corresponding position on power transformer outer container (1), sealing strip (18) are arranged in seal groove (19).

5. The adjustable oil-filled power transformer according to claim 1, wherein: the box fixing seat (4) comprises a transverse rod (21) and a vertical rod (22), the transverse rod (21) and the vertical rod (22) are both arranged in two groups, the two ends of the transverse rod (21) are connected to the vertical rod (22), the outer wall of the vertical rod (22) is provided with a sliding strip (23), a sliding groove (24) is formed in the side mounting rack (2), and the sliding strip (23) is slidably mounted in the sliding groove (24).

6. The adjustable oil-filled power transformer according to claim 1, wherein: line pole mount (3) are including fixation nut (20), line pole dead lever (25), arc frame (26) and threaded connection pole (27), line pole dead lever (25) and arc frame (26) all are provided with two sets ofly, the one end of line pole dead lever (25) is fixed on side mounting bracket (2), and two sets of arc frames (26) are arranged in between two sets of line pole dead levers (25), and form circular chamber between arc frame (26), threaded connection pole (27) screw thread runs through line pole dead lever (25) and arc frame (26), and is connected fixation nut (20) between threaded connection pole (27) and line pole dead lever (25), arc frame (26).

7. The adjustable oil-filled power transformer according to claim 1, wherein: the top of power transformer outer container (1) is connected with support frame (10), and support frame (10) distribute in four corners of power transformer outer container (1), the top installation protection canopy (11) of support frame (10), and protection canopy (11) slope sets up.