CN219676997U

CN219676997U - Energy-saving dry-type transformer

Info

Publication number: CN219676997U
Application number: CN202321752894.0U
Authority: CN
Inventors: 王希超; 刘玉全
Original assignee: Shandong Jieyuan Transformer Co ltd
Current assignee: Shandong Jieyuan Transformer Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-09-12
Anticipated expiration: 2033-07-06

Abstract

The utility model is suitable for the technical field of dry transformers, and provides an energy-saving dry transformer, which comprises a shell, transformation equipment and a fan, and is characterized in that two sides of the shell are provided with heat dissipation holes, the top of the shell is provided with a vent, two sliding plates are arranged outside the vent, one end of each sliding plate is in sliding fit with a guide rail fixed at the upper end of the shell, the other end of each sliding plate is connected with a sliding mechanism, a motor is fixed on the shell, the motor drives the sliding plates to transversely slide to close or open the vent through the sliding mechanism, the sliding plates are arranged to control the vent at the top of the shell to open and close, and the vent is shielded when the two sliding plates are closed, so that dust or other impurities are prevented from entering from the vent; the vent is not sheltered from when two sliding plates are opened, and the wind that the fan blown out blows over transformation equipment, blows out the heat that transformation equipment produced from the vent, can not be in the inside convection current of casing.

Description

Energy-saving dry-type transformer

Technical Field

The utility model is suitable for the technical field of dry transformers, and particularly provides an energy-saving dry transformer.

Background

Dry transformers are transformers in which the core and windings are not immersed in insulating oil, and are usually provided with a housing on the outside thereof in order to protect the electrical components inside the transformer and to improve the safety performance of the transformer. The shell can effectively prevent external substances such as dust, moisture and the like from entering the transformer, so that the service life of the transformer is prolonged.

When the dry-type transformer is operated, heat generated in the dry-type transformer is difficult to dissipate, when the temperature of the environment where the transformer is located is high, the operation stability of the transformer can be affected, meanwhile, the energy consumption of the transformer during operation can be increased, and in order to cool the transformer, a fan is usually arranged at the bottom of the transformer. The heat dissipation problem of the transformer after the shell is additionally arranged is more serious, because the fan is arranged at the bottom of the transformer, wind can be blown upwards from the bottom to take away hot air of the transformer, however, the hot air is blocked by the shell at the top in the rising process, so that the hot air is difficult to be dispersed, and the blocked hot air can always circulate inside the shell of the transformer, so that the fan needs to continuously run to reduce the temperature of the environment where the transformer is located.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present utility model provides an energy-saving dry-type transformer, which aims to solve the problem that hot air of the dry-type transformer circulates in a housing and is difficult to be dispersed.

In order to achieve the above object, the present utility model provides an energy-saving dry-type transformer, comprising: including the casing, set up the inside transformation equipment of casing, setting are in the fan of transformation equipment bottom, its characterized in that, the louvre has all been seted up to the casing both sides, the vent has been seted up at the casing top, two sliding plates are installed in the vent outside, the one end and the guide rail sliding fit who fixes in the casing upper end of sliding plate, the other end and the slide mechanism of sliding plate are connected, be fixed with the motor on the casing, the motor passes through slide mechanism drive sliding plate lateral sliding and closes or open the vent.

Preferably, the sliding mechanism comprises a screw rod coaxially fixed with the output shaft of the motor, the screw rod is rotatably arranged at the upper end of the shell, the screw rod comprises a forward rotating part and a reverse rotating part with opposite screw threads, nuts are sleeved outside the forward rotating part and the reverse rotating part of the screw rod in a matched mode, and the two nuts are fixedly connected with the two sliding plates respectively.

Preferably, a temperature controller electrically connected with the fan is arranged in the shell, and the temperature controller is also electrically connected with the motor.

Preferably, the bottom surfaces of the two sliding plates are respectively fixed with a guide plate, and the two guide plates are obliquely arranged from top to bottom and from far away from the heat dissipation holes to near the heat dissipation holes.

Preferably, the cross section of the guide rail is a dovetail, one end of the sliding plate, which is far away from the nut, is fixed with a dovetail sliding block, and the dovetail sliding block is in sliding fit with the guide rail.

Preferably, the side wall of the shell is provided with an access opening, and the side wall of the shell is hinged with an access door capable of opening and closing the access opening.

Preferably, the motor is a stepper motor.

Preferably, the bottom of the transformer equipment is fixed with a mounting plate, and the mounting plate is provided with a threaded hole.

The utility model aims to provide an energy-saving dry-type transformer, which has the following beneficial effects:

(1) the sliding plates are arranged to control the opening and closing of the vent hole at the top of the shell, and the vent hole is shielded when the two sliding plates are closed, so that dust or other impurities are prevented from entering from the vent hole; the vent is not sheltered from when two sliding plates are opened, and the wind that the fan blown out blows over transformation equipment, blows out the heat that transformation equipment produced from the vent, can not be in the inside convection current of casing.

(2) The two guide plates are arranged to guide the hot air blown out of the fan, most of the hot air is guided by the guide plates to be discharged from the ventilation opening, and a small amount of the hot air is guided by the guide plates to be discharged from the radiating holes on two sides of the shell, so that the hot air discharging efficiency is accelerated.

Drawings

FIG. 1 is an isometric view of an energy efficient dry-type transformer;

fig. 2 is a schematic structural diagram of an energy-saving dry-type transformer;

fig. 3 is a schematic structural diagram of the transformer and the blower.

In the figure: 10-a housing; 20-a voltage transformation device; 21-a fan; 22-an air conveying channel; 30-heat dissipation holes; 40-ventilation openings; 41-a sliding plate; 50-a guide rail; 60-motor; 61-a screw; 62-nut; 70-a guide plate; 80-an access port; 81-access door; 90-mounting plates; 91-threaded holes.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present utility model aims to provide an energy-saving dry-type transformer, which comprises a housing 10 and a transformer device 20 arranged in the housing 10, wherein the housing 10 arranged outside the transformer device 20 not only can block dust or impurities, but also can effectively isolate the transformer device 20 from the external environment, reduce the risks of accidental electric shock and fire, and improve the working safety. A blower 21 is installed at the bottom of the transformer apparatus 20, and the blower 21 can accelerate heat transfer and dissipation by sucking ambient cold air and blowing it into the inside of the transformer. The two sides of the shell 10 are provided with heat dissipation holes 30, when the fan 21 does not operate, natural wind can be blown in from one of the heat dissipation holes 30, and then blown out from the other heat dissipation hole 30 after being blown through the transformer 20; when the fan 21 is operated, the fan 21 blows through the transformer apparatus 20 to carry heat out through the heat radiation holes 30. The top of the shell 10 is provided with a ventilation opening 40, two sliding plates 41 are arranged outside the ventilation opening 40, one ends of the sliding plates 41 are in sliding fit with guide rails 50 arranged at the upper end of the shell 10, the other ends of the sliding plates 41 are connected with a sliding mechanism, a motor 60 is fixed on the shell 10, and the motor 60 drives the sliding plates 41 to transversely slide to close or open the ventilation opening 40 through the sliding mechanism.

When heat dissipation is not needed, the two sliding plates 41 are in a closed state, and at this time, the two sliding plates 41 can completely shield the ventilation opening 40, so that dust or other impurities can be prevented from entering from the ventilation opening 40. When heat dissipation is required, the two sliding plates 41 are in an open state, at this time, the two sliding plates 41 do not block the ventilation opening 40 at all, and the air blown by the fan 21 blows through the transformer 20, so that the heat generated by the transformer 20 is blown out from the ventilation opening 40, and no convection occurs in the casing 10.

As further explanation of this example, as shown in fig. 1, two sides of the upper end of the housing 10 are provided with supporting frames, a screw 61 is rotatably installed between the two supporting frames, the screw 61 is coaxially fixed with an output shaft of the motor 60, that is, the motor 60 provides driving force for the screw 61, the screw 61 is composed of a forward rotating portion and a reverse rotating portion with the same length, the forward rotating portion and the reverse rotating portion of the screw 61 are threaded in opposite directions, nuts 62 are sleeved outside the forward rotating portion and the reverse rotating portion, the two nuts 62 are respectively fixedly connected with the two sliding plates 41, so that when the screw 61 rotates, the two nuts 62 move transversely along a central shaft of the screw 61, and the moving directions of the two nuts 62 are opposite, that is, the two nuts 62 can approach each other or separate from each other, when the motor 60 rotates forward, the two nuts 62 approach each other, thereby driving the two sliding plates 41 to approach each other, the sliding plates 41 cover the ventilation opening 40, and when the motor 60 rotates reversely, the two nuts 62 separate from each other, thereby driving the two sliding plates 41 to separate from each other, and the ventilation opening 40.

Wherein, the motor 60 adopts a stepping motor, a worker can set the number of turns of the motor 60 in advance, and the motor 60 runs for a preset number of turns, so that the screw 61 drives the nut 62 to drive the sliding plate 41 to move, and the sliding plate 41 does not shade the ventilation opening 40 at all.

As a further explanation of this example, referring to fig. 1 and 3 in detail, a temperature controller is configured in the housing 10, the temperature controller is composed of a detection module and an electric control module, the temperature detection module is electrically connected with the electric control module, the temperature detection module can detect the temperature in the housing 10 and convert the detection parameter into an electrical signal to be sent to the electric control module, the electric control module of the temperature controller is electrically connected with the fan 21, and when the temperature controller is used by a worker, a high temperature threshold and a low temperature threshold can be set on the electric control module of the temperature controller in advance. When the detection module of the temperature controller detects that the temperature in the shell 10 reaches a high temperature threshold value, the electric control module of the temperature controller sends a signal to the fan 21, the fan 21 starts blowing, and the wind of the fan 21 blows through the wind conveying channel 22 of the transformer equipment 20; the electric control module of the temperature controller is also electrically connected with the motor 60, and when the detection module of the temperature controller detects that the temperature in the shell 10 reaches the high temperature threshold value, the electric control module of the temperature controller sends a signal to the motor 60, and the motor 60 drives the sliding plate 41 to move through the sliding mechanism to open the ventilation opening 40. When the detection module of the temperature controller detects that the temperature in the shell 10 reaches the low temperature threshold value, the electric control module of the temperature controller sends signals to the fan 21 and the motor 60, so that the fan 21 is closed and no more air is blown, and the motor 60 drives the sliding plate 41 to move to close the ventilation opening 40 through the sliding mechanism.

As a further explanation of this example, referring to fig. 2 in detail, the bottom surfaces of the two sliding plates 41 are respectively fixed with a guide plate 70, and the two guide plates 70 are obliquely arranged from top to bottom and from the distance from the heat dissipation holes 30 to the distance from the heat dissipation holes 30, when the sliding plates 41 move to open the ventilation openings 40, the wind blown out from the blower 21 will be blocked by the guide plates 70, most of the wind with heat is guided by the guide plates 70 and discharged from the ventilation openings 40, and a small amount of the wind with heat is guided by the guide plates 70 and discharged from the heat dissipation holes 30 at two sides of the housing 10, so that the efficiency of discharging hot air is accelerated, the hot air is prevented from being circulated inside the housing 10 all the time, and the blower 21 can achieve the cooling effect without running too long time.

As further explanation of this example, referring to fig. 1 in detail, the cross section of the guide rail 50 is in a dovetail shape, and a dovetail-shaped slider is fixed at an end of the sliding plate 41 away from the nut 62, and the dovetail-shaped slider is disposed in and moves along the dovetail-shaped guide rail 50, so that the sliding plate 41 can only slide laterally along the guide rail 50 and cannot move up and down or rotate along the guide rail 50.

As a further explanation of this embodiment, referring to fig. 1 in detail, the side wall of the housing 10 is provided with an access opening 80, and the side wall of the housing 10 is hinged with an access door 81 capable of opening and closing the access opening 80, so that if the transformer 20 or the blower 21 is not operating properly, a worker can check and repair the transformer 20 or the blower 21 inside the housing 10 by opening the access door 81, thereby removing the fault.

As a further explanation of this embodiment, referring to fig. 3 in detail, a mounting plate 90 is fixed to the bottom of the transformer apparatus 20, a threaded hole 91 is formed on the mounting plate 90, and the transformer apparatus 20 may be fixed to the bottom of the housing 10 through the mounting plate 90 by matching a bolt with the threaded hole 91.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides an energy-saving dry-type transformer, includes casing (10), sets up transformation equipment (20) inside casing (10), set up fan (21) of transformation equipment (20) bottom, a serial communication port, louvre (30) have all been seted up to casing (10) both sides, vent (40) have been seted up at casing (10) top, two sliding plate (41) are installed in vent (40) outside, the one end and the guide rail (50) sliding fit of fixing in casing (10) upper end of sliding plate (41), the other end and the slide mechanism of sliding plate (41) are connected, be fixed with motor (60) on casing (10), motor (60) are closed or are opened vent (40) through slide mechanism drive sliding plate (41) lateral sliding.

2. The energy-saving dry-type transformer according to claim 1, wherein the sliding mechanism comprises a screw rod (61) coaxially fixed with an output shaft of the motor (60), the screw rod (61) is rotatably mounted at the upper end of the housing (10), the screw rod (61) comprises a forward rotating part and a reverse rotating part with opposite screw threads, nuts (62) are sleeved outside the forward rotating part and the reverse rotating part of the screw rod (61) in a matched manner, and the two nuts (62) are fixedly connected with the two sliding plates (41) respectively.

3. The energy-efficient dry-type transformer according to claim 2, characterized in that a temperature controller electrically connected to the fan (21) is arranged in the housing (10), and the temperature controller is also electrically connected to the motor (60).

4. An energy-saving dry-type transformer according to claim 3, wherein the bottom surfaces of the two sliding plates (41) are respectively fixed with a guide plate (70), and the two guide plates (70) are obliquely arranged from top to bottom from the heat dissipation hole (30) to the position close to the heat dissipation hole (30).

5. The energy-saving dry transformer according to claim 2, wherein the cross section of the guide rail (50) is a dovetail, and a dovetail slide block is fixed at one end of the sliding plate (41) away from the nut (62), and the dovetail slide block is in sliding fit with the guide rail (50).

6. The energy-saving dry type transformer according to claim 1, wherein an access opening (80) is formed in the side wall of the housing (10), and an access door (81) capable of opening and closing the access opening (80) is hinged to the side wall of the housing (10).

7. The energy efficient dry transformer of claim 4, wherein the motor (60) is a stepper motor.

8. The energy-saving dry type transformer according to claim 1, wherein a mounting plate (90) is fixed at the bottom of the transformer device (20), and a threaded hole (91) is formed in the mounting plate (90).