CN110752084A

CN110752084A - Dry-type transformer capable of reducing noise and cooling

Info

Publication number: CN110752084A
Application number: CN201911010137.4A
Authority: CN
Inventors: 查绿梅
Original assignee: Xuzhou Tongshan Baiheng Electronic Factory
Current assignee: Xuzhou Tongshan Baiheng Electronic Factory
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-02-04

Abstract

The invention relates to the technical field of dry-type transformers, and discloses a noise-reducing and temperature-reducing dry-type transformer, which comprises two mounting blocks and a first spring inside the mounting blocks, wherein when the dry-type transformer generates noise due to working vibration, the dry-type transformer transmits vibration to push rods through the mounting plates, the vibration is consumed through the elasticity of the first spring, meanwhile, the mounting plates drive a second push rod to move through two connecting rods through vibration, the connecting rods can pull tension springs when moving, the vibration is consumed through the deformation of hydraulic oil and the tension springs, the hydraulic oil and a first piston drive the first push rod to move, so that a telescopic rod is stretched, the second spring is driven to deform when the telescopic rod is stretched, the vibration is further consumed, and the noise caused by the operation of the dry-type transformer is reduced through multiple times of vibration consumption, provides a good living environment for the residents nearby.

Description

Dry-type transformer capable of reducing noise and cooling

Technical Field

The invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer capable of reducing noise and temperature.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machines and other places, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil. The cooling method is classified into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can continuously operate for a long time under the rated capacity. When forced air cooling is carried out, the output capacity of the transformer can be improved by 50 percent. The device is suitable for intermittent overload operation or emergency accident overload operation; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time. The dry-type transformer is mainly divided into an open type, a closed type and a pouring type.

When the dry-type transformer runs, the alternating magnetic field of the dry-type transformer generates periodic alternating acting force on the iron core and the coil to cause the dry-type transformer to vibrate on an installed base plate, and the vibrating iron core coil radiates noise outwards; under the action of a conductive wire in the energized dry-type transformer and a vortex flow in the iron core, the radiated noise is far more complicated than the noise generated by single-frequency vibration and is more disturbing to people; the noise not only affects the daily life of people in the building, but also badly affects the health of people if the noise is serious, and the noise also produces sound pollution and is not beneficial to the healthy life of people; another major source of transformer noise is the cooler, which spins with a fan that drives the air to flow rapidly, whining the air as it exits through the outlet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the dry-type transformer capable of reducing noise and cooling, which has the advantages of reducing noise and the like and solves the problem of noise pollution.

(II) technical scheme

In order to achieve the purpose of reducing the noise, the invention provides the following technical scheme: a noise-reducing and cooling dry-type transformer comprises a casing, wherein a sound insulation board is fixedly connected to the inner wall of the casing, two hollow mounting blocks are fixedly connected to the bottom wall inside the casing, first springs are fixedly connected to the insides of the two mounting blocks, push rods are fixedly connected to the ends, far away from the mounting blocks, of the two first springs, a mounting plate is fixedly connected between the top ends of the two push rods, the dry-type transformer is placed on the upper surface of the mounting plate, two first sleeves are fixedly connected to the bottom wall inside the casing, second sleeves are fixedly connected to the upper surfaces of the two first sleeves, the first sleeves are communicated with the second sleeves, hydraulic oil is filled in the first sleeves and the second sleeves, first pistons are arranged inside the two first sleeves, and first push rods are fixedly connected to the opposite sides of the two first pistons, two fixedly connected with telescopic link between the relative one side of first push rod, the surface cover of telescopic link is equipped with the second spring, two the telescopic inside of second all is provided with the second piston, two the equal fixedly connected with second push rod of the relative one side of second piston, two the relative one end of second push rod all articulates there is the connecting rod, two the relative one end of connecting rod all with the lower surface of mounting panel is articulated, the connecting rod with contained angle between the mounting panel is the acute angle, two all the time be provided with the extension spring between the connecting rod.

Preferably, the upper surface of the casing is fixedly connected with a baffle.

Preferably, the inside left side wall fixedly connected with fan of acoustic celotex board, the surface of fan is provided with the sound-proof housing, the inside right side wall fixedly connected with ventilation pipe of acoustic celotex board, the both ends of ventilation pipe all are provided with the air intake, the inside of ventilation pipe is provided with two toper pipelines, the inside of ventilation pipe is provided with the air outlet, two the toper pipeline about air outlet symmetric distribution, two the toper pipeline with the air outlet is linked together.

Preferably, a set of through holes are formed in the outer surface of the casing, the through holes correspond to the air outlets, and filter screens are fixedly connected inside the through holes.

Preferably, the outer surface of the casing is fixedly connected with a group of inclined plates, the inclined plates correspond to the through holes, and the inclined plates are located above the through holes.

Preferably, a plastic film is bonded on the top wall inside the sound insulation board through glue, an installation bin is formed between the plastic film and the sound insulation board, and gravels are filled inside the installation bin.

Preferably, a sound device is arranged between the upper surfaces of the two first sleeves, and the upper surface of the sound device is provided with an exciter.

Preferably, the last fixed surface of mounting panel is connected with the fixed plate, the last fixed surface of mounting panel is connected with the riser of set up threaded hole, the inside threaded connection of riser has the threaded rod, the threaded rod with the equal fixedly connected with rubber slab in the relative one side of fixed plate, the rubber slab with dry-type transformer is connected.

(III) advantageous effects

Compared with the prior art, the invention provides a dry-type transformer capable of reducing noise and temperature, which has the following beneficial effects:

(1) the dry type transformer capable of reducing noise and cooling comprises two installation blocks and a first spring inside the installation blocks, when the dry type transformer generates noise due to working vibration, the dry type transformer transmits vibration to a push rod through the installation plates, the vibration is consumed through elasticity of the first spring, meanwhile, the installation plates drive a second push rod to move through two connecting rods due to vibration, the connecting rods can pull a tension spring when moving, the vibration is consumed through deformation of the arranged hydraulic oil and the tension spring, the hydraulic oil and a first piston drive the first push rod to move, so that a telescopic rod is stretched, the telescopic rod drives a second spring to deform when stretching, further vibration is consumed, the noise generated by the sound and the noise generated by the dry type transformer are matched with each other through the arranged sound and an exciter, the amplitude of the noise generated by the sound is equal to that generated by the dry type transformer, the phases of the noise are opposite, and the dry type transformer is subjected to, the mutual offset is realized, so that the noise caused by the operation of the dry type transformer is reduced, and a good living environment is provided for nearby residents.

(2) The dry-type transformer capable of reducing noise and cooling has the advantages that the effect of cooling the dry-type transformer is achieved through the arranged fan, the noise generated when the fan operates is reduced through the arranged sound-proof cover, when the fan dissipates heat to the dry-type transformer, hot air can be blown into the ventilation pipe through the two air inlets, and then flows to the air outlet from the conical pipeline; the hot air enters the big end from the small end and flows out in the conical pipeline, so that the wind speed is reduced, the noise generated at the through hole due to the too fast flow speed when the air is exhausted is avoided, and the effect of reducing the noise while cooling is achieved.

(3) This can fall make an uproar and dry-type transformer of cooling through the plastic film who sets up, when the conflagration breaing out, plastic film can burn because of the ignition point is low, loses plastic film's constraint, and the grit can fall in dry-type transformer's top under the effect of gravity, plays the effect of putting out a fire or reducing the condition of a fire.

(4) This can fall and dry-type transformer of cooling of making an uproar, through the riser that sets up, rotatory threaded rod is closely fixed with two rubber slabs and dry-type transformer, plays fixed effect, and the rubber slab, can consume the vibrations that dry-type transformer produced at the during operation, and further provides the noise reduction effect.

Drawings

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

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure B of FIG. 1 according to the present invention;

FIG. 4 is a cross-sectional view of the mounting block of the present invention;

fig. 5 is a front view of the present invention.

In the figure: 1 casing, 2 acoustic celotex boards, 3 installation pieces, 4 first springs, 5 push rods, 6 installation plates, 7 dry type transformer, 8 first sleeves, 9 second sleeves, 10 hydraulic oil, 11 first pistons, 12 first push rods, 13 telescopic rods, 14 second springs, 15 second pistons, 16 second push rods, 17 connecting rods, 18 baffles, 19 fans, 20 ventilation pipes, 21 air inlets, 22 tapered pipelines, 23 air outlets, 24 through holes, 25 filter screens, 26 inclined plate plates, 27 plastic films, 28 gravels, 29 acoustics, 30 exciters, 31 fixing plates, 32 vertical plates, 33 threaded rods, 34 rubber plates and 35 tension springs.

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.

Referring to fig. 1-5, a dry-type transformer capable of reducing noise and temperature comprises a casing 1, the casing 1 is usually made of metal material and can be used for a long time, a baffle plate 18 is fixedly connected to the upper surface of the casing 1, the baffle plate 18 is usually designed in a triangular prism shape and can effectively shield sundries such as rain falling leaves, a sound insulation plate 2 is fixedly connected to the inner wall of the casing 1, the sound insulation plate 2 is usually made of sound-absorbing material such as rock wool, glass fiber and the like placed in a steel plate, the sound insulation material can reflect part of noise generated by the transformer back, and when the noise passes through the sound insulation material, the noise can be absorbed to reduce the noise, two hollow mounting blocks 3 are fixedly connected to the bottom wall inside the casing 1, first springs 4 are fixedly connected to the inside of the two mounting blocks 3, push rods 5 are fixedly connected to one ends of the two first springs 4 far away from the mounting blocks 3, a mounting plate 6 is fixedly connected between the top ends of the two push rods 5, a dry-type transformer 7 is placed on the upper surface of the mounting plate 6, two first sleeves 8 are fixedly connected on the bottom wall inside the casing 1, second sleeves 9 are fixedly connected on the upper surfaces of the two first sleeves 8, the first sleeves 8 are communicated with the second sleeves 9, hydraulic oil 10 for filling the inside of the first sleeves 8 and the inside of the second sleeves 9 is provided, first pistons 11 are arranged inside the two first sleeves 8, first push rods 12 are fixedly connected on the opposite sides of the two first pistons 11, a telescopic rod 13 is fixedly connected between the opposite sides of the two first push rods 12, the telescopic rod 13 is composed of two sleeves with the same radius and a circular tube with the radius smaller than that of the sleeves, two ends of the circular tube are respectively inserted into the corresponding sleeves and are in sliding connection with the corresponding sleeves, so as to achieve the purpose of telescoping, a second spring 14 is sleeved on the outer surface of, the inside of two second sleeves 9 all is provided with second piston 15, and the equal fixedly connected with second push rod 16 in the relative one side of two second pistons 15, and the relative one end of two second push rods 16 all articulates there is connecting rod 17, and the relative one end of two connecting rods 17 all articulates with the lower surface of mounting panel 6, and the contained angle between connecting rod 17 and the mounting panel 6 is the acute angle all the time, is provided with extension spring 35 between two connecting rods 17.

The left side wall of the inside of the sound insulation board 2 is fixedly connected with a fan 19, the outer surface of the fan 19 is provided with a sound insulation cover, the right side wall of the inside of the sound insulation board 2 is fixedly connected with a vent pipe 20, both ends of the vent pipe 20 are provided with air inlets 21, the inside of the vent pipe 20 is provided with two conical pipelines 22, the inside of the vent pipe 20 is provided with an air outlet 23, the two conical pipelines 22 are symmetrically distributed around the air outlet 23, the two conical pipelines 22 are communicated with the air outlet 23, the outer surface of the casing 1 is provided with a group of through holes 24, the through holes 24 correspond to the air outlet 23, the inside of the through holes 24 is fixedly connected with a filter screen 25 to play a role of shielding dust, the outer surface of the casing 1 is fixedly connected with a group of inclined plates 26, the inclined plates 26 correspond to the, the noise generated when the fan 19 operates is reduced by the arranged sound-proof cover, when the fan 19 radiates the heat of the dry-type transformer 7, hot air is blown into the ventilation pipe 20 through the two air inlets 21, and then flows to the air outlet 23 from the conical pipeline 22; the hot air enters the large end from the small end in the conical pipeline 22 and flows out, so that the wind speed is reduced, the phenomenon that the flow speed is too high to generate noise at the through hole 24 when the air is exhausted again is avoided, and the effect of reducing the noise while the temperature is reduced is achieved.

There is plastic film 27 through glue bonding on the inside roof of acoustic celotex board 2, plastic film 27 can replace by textile, form the installation storehouse between plastic film 27 and the acoustic celotex board 2, the inside packing of settling the storehouse has grit 28, through the plastic film 27 that sets up, when the conflagration breaing out, plastic film 27 is low because of the ignition point, can burn, lose plastic film 27's constraint, the grit can fall on dry-type transformer 7's top under 28 at the effect of gravity, play and put out a fire or reduce the effect of the condition of a fire.

The sound 29 is arranged between the upper surfaces of the two first sleeves 8, the exciter 30 is arranged on the upper surface of the sound 29, the model of the exciter 30 is GME3FN31, and the sound 29 and the exciter 30 are matched with each other, so that the noise emitted by the sound 29 is equal to the noise emitted by the dry-type transformer 7 in amplitude and opposite in phase, and the noise of the dry-type transformer 7 is subjected to destructive interference and is cancelled.

Fixed surface is connected with fixed plate 31 on mounting panel 6, fixed surface is connected with the riser 32 of seting up threaded hole on mounting panel 6, the inside threaded connection of riser 32 has threaded rod 33, threaded rod 33 and the equal fixedly connected with rubber slab 34 in one side that fixed plate 31 is relative, rubber slab 34 is connected with dry-type transformer 7, riser 32 through setting up, rotatory threaded rod 33 is closely fixed two rubber slabs 34 and dry-type transformer 7, play fixed effect, and rubber slab 34, can consume the vibrations that dry-type transformer 7 produced at the during operation, further the effect of making an uproar of falling is provided.

In summary, according to the noise-reducing and temperature-lowering dry-type transformer, through the two installation blocks 3 and the first spring 4 inside the installation blocks 3, when the dry-type transformer 7 generates noise due to working vibration, the dry-type transformer 7 transmits vibration to the push rod 5 through the installation plate 6, vibration is consumed through elasticity of the first spring 4, meanwhile, the installation plate 6 drives the two push rods 16 to move through the two connecting rods 17 through vibration, the connecting rods 17 pull the tension springs 35 when moving, vibration is consumed through deformation of the hydraulic oil 10 and the tension springs 35, the hydraulic oil 10 and the first piston 11 drive the first push rod 12 to move, so that the telescopic rod 13 extends and retracts, the telescopic rod 13 drives the second spring 14 to deform when extending and retracting, vibration is further consumed, through repeated vibration consumption, through mutual cooperation of the sound 29 and the exciter 30, noise emitted by the sound 29 and noise emitted by the dry-type transformer 7 are caused, the amplitudes are equal and the phases are opposite, so that the noise of the dry-type transformer 7 is subjected to destructive interference and is counteracted mutually, thereby reducing the noise caused by the operation of the dry-type transformer 7 and providing a good living environment for nearby residents.

According to the dry-type transformer capable of reducing noise and temperature, the fan 19 is arranged to play a role in reducing temperature of the dry-type transformer 7, the noise generated when the fan 19 operates is reduced through the arranged sound-proof cover, when the fan 19 dissipates heat to the dry-type transformer 7, hot air can be blown into the ventilation pipe 20 through the two air inlets 21, and then flows to the air outlet 23 from the conical pipeline 22; the hot air enters the large end from the small end in the conical pipeline 22 and flows out, so that the wind speed is reduced, the phenomenon that the flow speed is too high to generate noise at the through hole 24 when the air is exhausted again is avoided, and the effect of reducing the noise while the temperature is reduced is achieved.

This can fall and dry-type transformer of cooling of making an uproar, through the plastic film 27 that sets up, when the conflagration breaing out, plastic film 27 can burn because of the ignition point is low, loses plastic film 27's constraint, and the grit can fall in dry-type transformer 7's top under 28 the effect of gravity, plays the effect of putting out a fire or reducing the condition of a fire.

This can fall and dry-type transformer of cooling of making an uproar, through the riser 32 that sets up, rotatory threaded rod 33 is closely fixed with two rubber slabs 34 and dry-type transformer 7, plays fixed effect, and rubber slab 34, can consume the vibrations that dry-type transformer 7 produced at the during operation, further provides the noise reduction effect.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 a dry-type transformer of degradable noise and cooling, includes casing (1), its characterized in that: the inner wall of the casing (1) is fixedly connected with a sound insulation board (2), the bottom wall of the interior of the casing (1) is fixedly connected with two hollow installation blocks (3), the interiors of the two installation blocks (3) are fixedly connected with first springs (4), one ends, far away from the installation blocks (3), of the two first springs (4) are fixedly connected with push rods (5), an installation plate (6) is fixedly connected between the top ends of the two push rods (5), a dry-type transformer (7) is placed on the upper surface of the installation plate (6), two first sleeves (8) are fixedly connected on the bottom wall of the interior of the casing (1), second sleeves (9) are fixedly connected on the upper surfaces of the two first sleeves (8), the first sleeves (8) are communicated with the second sleeves (9), and the first sleeves (8) and the second sleeves (9) are filled with hydraulic oil (10), first pistons (11) are arranged in the two first sleeves (8), one sides of the two first pistons (11) opposite to each other are fixedly connected with first push rods (12), a telescopic rod (13) is fixedly connected between the two sides of the first push rods (12) opposite to each other, the outer surface of the telescopic rod (13) is sleeved with a second spring (14), second pistons (15) are arranged in the two second sleeves (9), one sides of the two second pistons (15) opposite to each other are fixedly connected with second push rods (16), one ends of the two second push rods (16) opposite to each other are hinged with connecting rods (17), one ends of the two connecting rods (17) opposite to each other are hinged with the lower surface of the mounting plate (6), connecting rod (17) with contained angle between mounting panel (6) is the acute angle all the time, two be provided with extension spring (35) between connecting rod (17).

2. A noise reducing and temperature reducing dry-type transformer as claimed in claim 1, wherein: the upper surface of the machine shell (1) is fixedly connected with a baffle (18).

3. A noise reducing and temperature reducing dry-type transformer as claimed in claim 1, wherein: inside left side wall fixedly connected with fan (19) of acoustic celotex board (2), the surface of fan (19) is provided with the sound-proof housing, the inside right side wall fixedly connected with ventilation pipe (20) of acoustic celotex board (2), the both ends of ventilation pipe (20) all are provided with air intake (21), the inside of ventilation pipe (20) is provided with two toper pipelines (22), the inside of ventilation pipe (20) is provided with air outlet (23), two toper pipeline (22) about air outlet (23) symmetric distribution, two toper pipeline (22) with air outlet (23) are linked together.

4. A noise reducing and temperature reducing dry-type transformer as claimed in claim 3, wherein: a set of through holes (24) are formed in the outer surface of the machine shell (1), the through holes (24) correspond to the air outlets (23), and filter screens (25) are fixedly connected inside the through holes (24).

5. A noise reducing and temperature reducing dry-type transformer as claimed in claim 4, wherein: the outer surface fixed connection of casing (1) has a set of swash plate (26), swash plate (26) with through-hole (24) are corresponding, swash plate (26) are located the top of through-hole (24).

6. A noise reducing and temperature reducing dry-type transformer as claimed in claim 1, wherein: a plastic film (27) is bonded on the top wall inside the sound insulation board (2) through glue, an installation bin is formed between the plastic film (27) and the sound insulation board (2), and gravels (28) are filled inside the installation bin.

7. A noise reducing and temperature reducing dry-type transformer as claimed in claim 1, wherein: a sound device (29) is arranged between the upper surfaces of the two first sleeves (8), and an exciter (30) is arranged on the upper surface of the sound device (29).

8. A noise reducing and temperature reducing dry-type transformer as claimed in claim 1, wherein: the last fixed surface of mounting panel (6) is connected with fixed plate (31), the last fixed surface of mounting panel (6) is connected with threaded hole's riser (32), the internal thread of riser (32) is connected with threaded rod (33), threaded rod (33) with the equal fixedly connected with rubber slab (34) in the relative one side of fixed plate (31), rubber slab (34) with dry-type transformer (7) are connected.