CN114242424A

CN114242424A - Low-noise transformer

Info

Publication number: CN114242424A
Application number: CN202210029331.2A
Authority: CN
Inventors: 马兴华; 陈兴如; 郑金龙
Original assignee: Jiangsu Tianwei Transformer Co ltd
Current assignee: Jiangsu Tianwei Transformer Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-03-25
Anticipated expiration: 2042-01-12
Also published as: CN114242424B; CN117637299A

Abstract

The invention discloses a low-noise transformer, which comprises an installation base, wherein a shell is fixedly arranged on the upper end surface of the installation base; the invention utilizes the spring to suspend the transformer in the oil cavity, when preventing the transformer from shaking, the shaking can be directly transmitted to the shell, thus causing resonance, and through the foam sound insulation board arranged on the inner wall of the oil cavity, the noise can be further reduced, and through two kinds of heat dissipation boards with different heat dissipation performances, the temperature difference is generated on the surface of the heat dissipation board, further the air on the surface of the heat dissipation board generates convection, so as to enhance the heat dissipation performance, and through the condensation and recovery of the volatile transformer oil, the consumption of the transformer oil is reduced, and through the collected rainwater, the invention can be used for cleaning the heat dissipation board and the shell, thereby preventing the heat dissipation performance from being influenced by the dust adhesion, and when the rainfall is larger, the height of the base is automatically raised, and the water is prevented from entering.

Description

Low-noise transformer

Technical Field

The invention relates to the technical field of transformers, in particular to a low-noise transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, in the use process of the transformer, an iron core can generate magnetostriction under the action of an alternating magnetic field, so that the iron core generates vibration and generates noise, and in the use process of the transformer, transformer oil can volatilize under the working temperature of the transformer, so that the transformer is consumed, so that the transformer oil needs to be continuously supplemented into the transformer, the labor power is consumed, the cost is increased, and when the rainfall is large, some transformer bases arranged on the ground can be submerged by rainwater, so that the interior of the transformer is easy to be damaged by water.

Disclosure of Invention

The object of the present invention is to provide a low noise transformer which overcomes the above mentioned drawbacks of the prior art.

The low-noise transformer comprises a mounting base, wherein the upper end surface of the mounting base is fixedly provided with a shell, an oil cavity is arranged in the shell, four suspension springs arranged in an array are fixedly arranged on the bottom surface of the oil cavity, a transformer mounting block is fixedly arranged on the upper end surface of the suspension spring, a transformer is mounted on the upper end surface of the transformer mounting block, two binding posts which are symmetrical left and right are fixedly arranged on the upper end surface of the shell, a lead is connected between the binding posts and the transformer, an oil inlet pipe communicated with the oil cavity is arranged on the upper end surface of the shell on the left side of the binding post, an oil inlet one-way valve is fixedly arranged on the oil inlet pipe, a pressure relief backflow block is fixedly arranged on the upper end face of the shell on the left side of the oil inlet pipe, and a condensation backflow mechanism capable of condensing and recycling volatilized transformer oil is arranged in the pressure relief backflow block; the upper end surface of the mounting base is provided with four water inlet cavities which are distributed in an array mode and have upward openings, the lower side of each water inlet cavity is provided with a water storage cavity, the water inlet cavities and the water storage cavities are communicated through two small holes which are symmetrical in left and right positions, and cleaning mechanisms which can detect rainfall and collect rainwater for cleaning the shell and assisting in heat dissipation are arranged in the water inlet cavities and the water storage cavities; be equipped with the transmission chamber in the installation base, the left and right sides in transmission chamber is equipped with the lift spout of position symmetry, it is equipped with the elevator to slide in the lift spout, the bottom surface of elevator is equipped with opening shock attenuation spout down, it extends to slide in the shock attenuation spout the snubber block of installation base lower surface, the snubber block with the fixed damping spring that is equipped with between the top surface of shock attenuation spout, the lower terminal surface of snubber block is fixed and is equipped with the rubber slab, it can control to be equipped with in the transmission intracavity the elevating system that the rubber slab goes up and down.

According to the scheme, the foam sound insulation plate is arranged on the inner wall of the oil cavity and can absorb and weaken noise.

According to the scheme, the outer end face around the shell is fixedly provided with two first heat dissipation plates which are symmetrical in upper and lower positions, the outer end face of the shell between the first heat dissipation plates is fixedly provided with a second heat dissipation plate, and the two heat dissipation plates are different in heat dissipation performance, so that temperature difference is generated, air convection is generated, and the heat dissipation effect is enhanced.

According to the above scheme, condensation reflux mechanism include simultaneously with the atmosphere with the disappointing pipe of oil pocket intercommunication, be equipped with the check valve that loses heart on the disappointing pipe, the up end fixed mounting that loses heart manages has the condensation board, the lower terminal surface of condensation board is equipped with the sloping block of two left and right positions symmetries, the sloping block downside be equipped with the back flow of oil pocket intercommunication, this condensation reflux mechanism can carry out the condensation with volatile transformer oil and retrieve, reduces the consumption of transformer oil.

According to the above scheme, clean mechanism is including setting up rainfall spout on the intracavity wall of intaking, it is equipped with the rainfall slider to slide in the rainfall spout, the fixed floating block that is equipped with on the rainfall slider, be connected with on the interior terminal surface in retaining chamber and extend to the spray pipe of installation base upper surface, the fixed water pump that is equipped with on the spray pipe, this clean mechanism can collect the rainwater to when needs, the rainwater that will collect is used for the washing of heating panel and shell, prevents to influence the thermal diffusivity because the dust adheres to.

According to the scheme, the lifting mechanism comprises a lifting motor fixedly arranged on the bottom surface of the transmission cavity, the upper end face of the lifting motor is in driving connection with a driving shaft, a worm is fixedly arranged on the driving shaft, steering shafts with symmetrical positions are arranged on the left side and the right side of the driving shaft, steering wheels are fixedly arranged on the steering shafts and are meshed with the worm, a lifting power shaft is arranged on the outer side of each steering shaft, a lifting power wheel is fixedly arranged on the lifting power shaft and is meshed with a lifting block, a belt group is connected between the lifting power shaft and the steering shafts, and the lifting mechanism can automatically raise the height of the base when the rainfall is large to prevent water from entering.

According to the scheme, the oil level meter is arranged on the upper surface of the shell on the right side of the wiring terminal, the oil cavity top surface on the lower side of the oil level meter is provided with the oil level sensor, and the oil level meter is convenient for confirming the height of the oil level in the oil cavity.

According to the scheme, the top surface of the rainfall chute is fixedly provided with a contact switch which can control the starting of the lifting motor, and the contact switch can judge the rainfall.

The invention has the beneficial effects that: the transformer is suspended in the oil cavity by the spring, so that the vibration of the transformer is prevented from being directly transmitted to the shell to cause resonance, and the noise can be further reduced by the foam sound insulation plate arranged on the inner wall of the oil cavity;

according to the invention, through two heat dissipation plates with different heat dissipation performances, a temperature difference is generated on the surface of the heat dissipation plate, and then air on the surface of the heat dissipation plate generates convection so as to enhance the heat dissipation performance, and the consumption of transformer oil is reduced through condensation and recovery of the volatile transformer oil;

the invention can be used for cleaning the heat dissipation plate and the shell through the collected rainwater, prevents the influence on heat dissipation due to dust adhesion, and automatically raises the height of the base to prevent the water from entering the base when the rainfall is large.

Drawings

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

FIG. 2 is a schematic diagram of the overall structure of a low noise transformer according to the present invention;

FIG. 3 is a schematic view of A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a block diagram of the reservoir chamber of FIG. 2 according to the invention;

FIG. 5 is a block diagram of the pressure relief reflux block of FIG. 2 of the present invention;

as shown in the figure:

11. a housing; 12. an oil chamber; 13. a pressure relief reflux block; 14. a first heat dissipation plate; 15. a foam acoustical panel; 16. a second heat dissipation plate; 17. a binding post; 18. a wire; 19. an oil level meter; 20. an oil level sensor; 21. a transformer; 22. a transformer mounting block; 23. a suspension spring; 24. installing a base; 25. a lifting chute; 26. a lifting block; 27. a shock-absorbing chute; 28. a damping spring; 29. a damper block; 30. a rubber plate; 31. a transmission cavity; 32. a lifting motor; 33. a drive shaft; 34. a worm; 35. a water inlet cavity; 36. a water storage cavity; 37. a lifting power shaft; 38. a lifting power wheel; 39. a belt set; 40. a steering shaft; 41. a steering wheel; 42. a contact switch; 43. a rain chute; 44. a rainfall slide block; 45. floating blocks; 46. a water pump; 47. a water spray pipe; 48. a condensing plate; 49. a sloping block; 50. an air escape pipe; 51. a return pipe; 52. a gas release check valve; 53. an oil inlet pipe; 54. an oil inlet one-way valve; 55. a condensing reflux mechanism; 56. a lifting mechanism; 57. and (4) cleaning the mechanism.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the invention, taken in conjunction with the examples, should be understood that the following text is only intended to describe a low noise transformer or several specific embodiments of the invention, and not to strictly limit the scope of the invention as specifically claimed, as the terms up, down, left and right are not limited to their strict geometric definitions, but rather include tolerances for machining or human error rationality and inconsistency, the specific features of which are set forth in detail below:

referring to fig. 1 to 5, a low noise transformer according to an embodiment of the present invention includes a mounting base 24, a housing 11 is fixedly disposed on an upper end surface of the mounting base 24, an oil chamber 12 is disposed in the housing 11, four suspension springs 23 are fixedly disposed on a bottom surface of the oil chamber 12, a transformer mounting block 22 is fixedly disposed on an upper end surface of the suspension springs 23, a transformer 21 is mounted on an upper end surface of the transformer mounting block 22, two terminals 17 are fixedly disposed on an upper end surface of the housing 11, the terminals 17 are symmetric with respect to each other in a left-right direction, a lead 18 is connected between each terminal 17 and the transformer 21, an oil inlet pipe 53 is disposed on an upper end surface of the housing 11 on a left side of each terminal 17 and communicated with the oil chamber 12, an oil inlet check valve 54 is fixedly disposed on each oil inlet pipe 53, a pressure relief backflow block 13 is fixedly disposed on an upper end surface of the housing 11 on a left side of each oil inlet pipe 53, a condensing reflux mechanism 55 which can condense and recycle the volatilized transformer oil is arranged in the pressure relief reflux block 13; four water inlet cavities 35 which are distributed in an array mode and have upward openings are formed in the upper end face of the mounting base 24, a water storage cavity 36 is formed in the lower side of each water inlet cavity 35, the water inlet cavities 35 are communicated with the water storage cavities 36 through two small holes which are symmetrical in left and right positions, and cleaning mechanisms 57 which can detect rainfall and collect rainwater for cleaning the shell 11 and assisting in heat dissipation are arranged in the water inlet cavities 35 and the water storage cavities 36; be equipped with transmission chamber 31 in the installation base 24, the left and right sides of transmission chamber 31 is equipped with position symmetry's lift spout 25, it is equipped with elevator 26 to slide in the lift spout 25, elevator 26's bottom surface is equipped with opening shock attenuation spout 27 down, it extends to slide to be equipped with in the shock attenuation spout 27 the snubber block 29 of installation base 24 lower surface, snubber block 29 with fixed damping spring 28 that is equipped with between the top surface of shock attenuation spout 27, the lower terminal surface of snubber block 29 is fixed and is equipped with rubber slab 30, be equipped with in the transmission chamber 31 and control the elevating system 56 that rubber slab 30 goes up and down.

Illustratively, a foam noise insulation board 15 is arranged on the inner wall of the oil chamber 12.

Illustratively, two first heat dissipation plates 14 which are symmetrical in the vertical position are fixed on the outer end face of the periphery of the housing 11, a second heat dissipation plate 16 is fixed on the outer end face of the housing 11 between the first heat dissipation plates 14, and the heat dissipation performance of the first heat dissipation plate 14 and the heat dissipation performance of the second heat dissipation plate 16 are different, so that a temperature difference is generated on the surface of the first heat dissipation plate 14, and further air convection is generated.

Exemplarily, condensation reflux mechanism 55 include simultaneously with the atmosphere with the disappointing pipe 50 of oil pocket 12 intercommunication, be equipped with disappointing check valve 52 on the disappointing pipe 50, the up end fixed mounting of disappointing pipe 50 has condenser plate 48, the lower terminal surface of condenser plate 48 is equipped with the sloping block 49 of two bilateral symmetry, sloping block 49 downside be equipped with the back flow pipe 51 of oil pocket 12 intercommunication, when the variable pressure oil in the oil pocket 12 volatilizees, atmospheric pressure in the oil pocket 12 will increase for air in the oil pocket 12 and volatile variable pressure oil enter into disappointing pipe 50 through disappointing check valve 52 in, and volatile variable pressure oil will contact condenser plate 48, make gaseous variable pressure oil become the droplet, and flow into in back flow 51 along sloping block 49, flow back to in the oil pocket 12 at last.

Illustratively, the cleaning mechanism 57 includes a rain chute 43 disposed on the inner wall of the water inlet cavity 35, a rain slider 44 is slidably disposed in the rain chute 43, a floating block 45 is fixedly disposed on the rain slider 44, a water spray pipe 47 extending to the upper surface of the mounting base 24 is connected to the inner end surface of the water storage cavity 36, a water pump 46 is fixedly disposed on the water spray pipe 47, when raining, rain water falls into the water inlet cavity 35 and is finally stored in the water storage cavity 36, and when the water pump 46 is started, the water pump 46 sucks the rain water collected in the water storage cavity 36 and sprays the rain water to the housing 11, the first heat dissipation plate 14 and the second heat dissipation plate 16 through the water spray pipe 47 to flush away dust attached to the surfaces thereof.

Illustratively, the lifting mechanism 56 comprises a lifting motor 32 fixedly arranged on the bottom surface of the transmission cavity 31, the upper end surface of the lifting motor 32 is in driving connection with a driving shaft 33, a worm 34 is fixedly arranged on the driving shaft 33, steering shafts 40 with symmetrical positions are arranged on the left and right sides of the driving shaft 33, steering wheels 41 are fixedly arranged on the steering shafts 40, the steering wheels 41 are engaged with the worm 34, a lifting power shaft 37 is arranged on the outer side of the steering shaft 40, a lifting power wheel 38 is fixedly arranged on the lifting power shaft 37, the lifting power wheel 38 is engaged with the lifting block 26, a belt set 39 is connected between the lifting power shaft 37 and the steering shaft 40, when the lifting motor 32 is started, the lifting motor 32 drives the driving shaft 33 to rotate, the driving shaft 33 drives the worm 34 to rotate, the steering shaft 40 is driven to rotate by the steering wheels 41, the steering shaft 40 drives the lifting power shaft 37 to rotate through the belt set 39, the lifting power shaft 37 drives the lifting power wheel 38 to rotate, and the lifting power wheel 38 drives the lifting block 26 to lift, so that the position of the rubber plate 30 is changed.

Illustratively, the upper surface of the housing 11 on the right side of the terminal 17 is provided with an oil level gauge 19, the top surface of the oil chamber 12 on the lower side of the oil level gauge 19 is provided with an oil level sensor 20, and the oil level sensor 20 can detect the height of the oil level in the oil chamber 12 and display the height on the oil level gauge 19.

Illustratively, a contact switch 42 capable of controlling the starting of the lifting motor 32 is fixedly arranged on the top surface of the rainfall chute 43, when the increment of the rainwater in the water inlet cavity 35 is larger than the amount of the rainwater flowing into the water storage cavity 36, the water level in the water inlet cavity 35 rises, so that the floating block 45 floats upwards, the floating block 45 drives the rainfall slider 44 to rise, so that the rainfall slider 44 contacts the contact switch 42, and the contact switch 42 controls the starting of the lifting motor 32.

The invention relates to a low-noise transformer, which comprises the following working procedures:

respectively connecting a high-voltage wire and a low-voltage wire to the two binding posts 17, then injecting transformer oil into the oil cavity 12 through the oil inlet pipe 53 until the transformer 21 is completely immersed, and when noise vibration occurs in the transformer 21, because the suspension spring 23 enables the transformer 21 to be suspended in the oil cavity 12 and not to be in direct contact with the shell 11, the vibration of the transformer 21 is not directly transmitted to the shell 11, the generation of resonance is weakened, and meanwhile, the foam sound insulation plate 15 arranged on the inner wall of the oil cavity 12 can absorb a part of vibration transmitted by the transformer oil, so that the noise is further lightened;

when the transformer 21 works, a large amount of heat is generated by the transformer 21, the heat is transmitted to the surface of the shell 11 through the transformer oil in the oil cavity 12 and is finally dissipated through the first heat dissipation plate 14 and the second heat dissipation plate 16, and the heat dissipation performance of the first heat dissipation plate 14 and the heat dissipation performance of the second heat dissipation plate 16 are different, so that the temperature difference is generated between the air on the surfaces of the first heat dissipation plate 14 and the second heat dissipation plate 16, air convection is formed on the surfaces of the first heat dissipation plate 14 and the second heat dissipation plate 16, and the heat dissipation effect of the first heat dissipation plate 14 and the second heat dissipation plate 16 is accelerated;

when the variable pressure oil in the oil cavity 12 volatilizes, the air pressure in the oil cavity 12 is increased, so that the air in the oil cavity 12 and the volatilized variable pressure oil enter the air release pipe 50 through the air release one-way valve 52, the volatilized variable pressure oil contacts the condensing plate 48, the gaseous variable pressure oil is converted into small liquid drops, flows into the return pipe 51 along the inclined block 49 and finally flows back into the oil cavity 12 to slow down the consumption speed of the variable pressure oil, and the oil level sensor 20 is arranged, can detect the oil level in the oil cavity 12 at any time and displays the oil level on the oil level gauge 19, so that the height of the oil level in the oil cavity 12 can be conveniently confirmed;

and when raining, rainwater falls into the water inlet cavity 35 and then flows into the water storage cavity 36 through the small holes to be stored, when the transformer needs to be cleaned, the water pump 46 is started, the water pump 46 sucks the rainwater collected in the water storage cavity 36 and sprays the rainwater onto the shell 11, the first heat dissipation plate 14 and the second heat dissipation plate 16 through the water spray pipe 47 to flush away dust attached to the surfaces of the shell 11, the first heat dissipation plate 14 and the second heat dissipation plate 16, so that the heat dissipation performance is prevented from being influenced, and when the rainfall is too large, the rainwater increment in the water inlet cavity 35 is larger than the water amount flowing into the water storage cavity 36, the water level in the water inlet cavity 35 rises, so that the floating block 45 floats upwards, the floating block 45 drives the rainfall slide block 44 to rise, so that the rainfall slide block 44 contacts the contact switch 42, the contact switch 42 controls the lifting motor 32 to start, the lifting motor 32 drives the driving shaft 33 to rotate, the driving shaft 33 drives the worm 34 to rotate, the worm 34 drives the steering shaft 40 to rotate through the steering wheel 41, the steering shaft 40 drives the lifting power shaft 37 to rotate through the belt set 39, the lifting power shaft 37 drives the lifting power wheel 38 to rotate, and the lifting power wheel 38 drives the lifting block 26 to ascend, so that the rubber plate 30 descends relative to the mounting base 24, the shell 11 integrally ascends, and the shell 11 is prevented from entering water.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A low noise transformer comprising a mounting base (24), characterized in that: the upper end face of the installation base (24) is fixedly provided with a shell (11), an oil cavity (12) is arranged in the shell (11), the bottom face of the oil cavity (12) is fixedly provided with four suspension springs (23) arranged in an array, the upper end face of each suspension spring (23) is fixedly provided with a transformer installation block (22), a transformer (21) is installed on the upper end face of each transformer installation block (22), the upper end face of the shell (11) is fixedly provided with two binding posts (17) which are symmetrical in left and right positions, a lead (18) is connected between each binding post (17) and the transformer (21), the upper end face of the shell (11) on the left side of each binding post (17) is provided with an oil inlet pipe (53) communicated with the oil cavity (12), an oil inlet check valve (54) is fixedly arranged on each oil inlet pipe (53), and a pressure relief backflow block (13) is fixedly arranged on the upper end face of the shell (11) on the left side of each oil inlet pipe (53), a condensing reflux mechanism (55) capable of condensing and recovering the volatilized transformer oil is arranged in the pressure relief reflux block (13);

the upper end face of the mounting base (24) is provided with four water inlet cavities (35) which are distributed in an array mode and have upward openings, the lower side of each water inlet cavity (35) is provided with a water storage cavity (36), the water inlet cavities (35) are communicated with the water storage cavities (36) through two small holes which are symmetrical in left and right positions, and cleaning mechanisms (57) which can detect rainfall and collect rainwater for cleaning and auxiliary heat dissipation of the shell (11) are arranged in the water inlet cavities (35) and the water storage cavities (36);

be equipped with transmission chamber (31) in installation base (24), the left and right sides in transmission chamber (31) is equipped with position symmetry's lift spout (25), it is equipped with elevator block (26) to slide in lift spout (25), the bottom surface of elevator block (26) is equipped with opening shock attenuation spout (27) down, it extends to slide to be equipped with in shock attenuation spout (27) shock attenuation piece (29) of installation base (24) lower surface, shock attenuation piece (29) with fixed damping spring (28) of being equipped with between the top surface of shock attenuation spout (27), the lower terminal surface of shock attenuation piece (29) is fixed and is equipped with rubber slab (30), be equipped with in transmission chamber (31) and control elevating system (56) that rubber slab (30) go up and down.

2. A low noise transformer according to claim 1, wherein: and a foam sound insulation plate (15) is arranged on the inner wall of the oil chamber (12).

3. A low noise transformer according to claim 1, wherein: two first heat dissipation plates (14) which are symmetrical up and down are fixedly arranged on the outer end face of the periphery of the shell (11), and a second heat dissipation plate (16) is fixedly arranged on the outer end face of the shell (11) between the first heat dissipation plates (14).

4. A low noise transformer according to claim 1, wherein: condensation reflux mechanism (55) including simultaneously with the atmosphere with disappointing pipe (50) of oil pocket (12) intercommunication, be equipped with disappointing check valve (52) on disappointing pipe (50), the up end fixed mounting who loses heart pipe (50) has condenser plate (48), the lower terminal surface of condenser plate (48) is equipped with two lateral position symmetry's sloping block (49), sloping block (49) downside be equipped with back flow (51) of oil pocket (12) intercommunication.

5. A low noise transformer according to claim 1, wherein: clean mechanism (57) is including setting up rainfall spout (43) on intake antrum (35) inner wall, it is equipped with rainfall slider (44) to slide in rainfall spout (43), fixed floater (45) of being equipped with on rainfall slider (44), be connected with on the interior terminal surface in retaining chamber (36) and extend to spray pipe (47) of installation base (24) upper surface, fixed water pump (46) that are equipped with on spray pipe (47).

6. A low noise transformer according to claim 5, wherein: elevating system (56) is including fixed setting up elevating motor (32) of transmission chamber (31) bottom surface, the up end drive of elevating motor (32) is connected with drive shaft (33), the fixed worm (34) that is equipped with on drive shaft (33), the drive shaft (33) left and right sides is equipped with steering spindle (40) of position symmetry, steering spindle (40) are fixed and are equipped with directive wheel (41), directive wheel (41) with worm (34) meshing, the outside of steering spindle (40) is equipped with lift power shaft (37), the fixed lift power wheel (38) that is equipped with on lift power shaft (37), lift power wheel (38) with lift piece (26) meshing, lift power shaft (37) with be connected with belt group (39) between steering spindle (40).

7. A low noise transformer according to claim 1, wherein: the oil level meter is characterized in that an oil level meter (19) is arranged on the upper surface of the shell (11) on the right side of the binding post (17), and an oil level sensor (20) is arranged on the top surface of the oil cavity (12) on the lower side of the oil level meter (19).

8. A low noise transformer according to claim 6, wherein: and a contact switch (42) which can control the starting of the lifting motor (32) is fixedly arranged on the top surface of the rainfall chute (43).