CN111816407A - Low-noise dry-type transformer - Google Patents
Low-noise dry-type transformer Download PDFInfo
- Publication number
- CN111816407A CN111816407A CN202010548922.1A CN202010548922A CN111816407A CN 111816407 A CN111816407 A CN 111816407A CN 202010548922 A CN202010548922 A CN 202010548922A CN 111816407 A CN111816407 A CN 111816407A
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- shell
- dry
- transformer
- type transformer
- housing
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- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a low-noise dry-type transformer which comprises a main body, wherein the main body comprises a shell, an electric appliance assembly and an electric fan which are arranged in the shell, and a buffer assembly and a standby power supply which are arranged at the bottom of the shell; three cavities are arranged in the shell, a single-phase dry-type transformer is arranged in each cavity, a motor fan is arranged in each cavity, and each motor fan is opposite to one single-phase dry-type transformer; the buffer mechanism comprises a base, a plurality of support frames are arranged on the base, disc springs are sleeved on the support frames, and a shell is movably arranged at the top ends of the support frames; the standby power supply is hung outside the shell and is electrically connected with the motor fan. The invention realizes effective cooling of the transformer main body and has good anti-seismic effect.
Description
Technical Field
The invention relates to the field of transformers, in particular to a low-noise dry-type transformer.
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 has the advantages of strong short circuit resistance, small maintenance workload, high operation efficiency, small volume, low noise and the like, and is commonly used in places with high performance requirements on fire prevention, explosion prevention and the like.
The conventional dry-type transformer radiating mode is internally provided with no cooling device, so that the heat of an electronic element cannot be dissipated, and a large amount of energy consumption is caused; in addition, the existing dry-type transformer has poor shock resistance in the whole structure, and particularly when the transformer is in live operation, the whole structure is subjected to normal oscillation due to the electromagnetic process, so that the resonance phenomenon of the whole structure is easily damaged by seismic waves with certain strength and specific frequency, and serious accidents occur.
Disclosure of Invention
In view of this, the present invention provides a low-noise dry-type transformer, which solves the problems of poor heat dissipation performance and poor anti-seismic effect of the conventional transformer.
The technical scheme of the invention is realized as follows:
a low-noise dry-type transformer comprises a main body, wherein the main body comprises a shell, an electrical appliance assembly and a fan, a buffer assembly and a standby power supply, wherein the electrical appliance assembly and the fan are arranged in the shell;
the shell is internally provided with three cavities, a single-phase dry-type transformer is arranged in each cavity, a motor fan is arranged in each cavity, and each motor fan is opposite to one single-phase dry-type transformer;
the buffer mechanism comprises a base, a plurality of support frames are arranged on the base, disc springs are sleeved on the support frames, and the shell is movably erected at the top ends of the support frames;
the standby power supply is hung on the outer side of the shell and electrically connected with the motor fan.
Preferably, the three single-phase dry-type transformers are independently placed and electrically connected, each single-phase dry-type transformer comprises a primary winding and a secondary winding, the primary windings of the three single-phase dry-type transformers are connected in a D shape or a Y shape, and the secondary windings of the three single-phase dry-type transformers are connected in a Y shape.
Preferably, the primary winding of each single-phase dry-type transformer is a high-voltage side, and the secondary winding of each single-phase dry-type transformer is a low-voltage side.
Preferably, the top end of the disc spring is provided with a supporting plate, the supporting plate is sleeved on the supporting frame, and when the shell is erected on the supporting frame, the supporting plate supports the shell.
Preferably, the top end of the support frame is provided with a movable bolt, the support frame penetrates into the inner side of the shell from the outer side of the bottom of the shell, and at the moment, the movable bolt fixes the bottom of the shell between the movable bolt and the supporting plate.
Preferably, the shell is provided with a vent hole, and the vent hole is positioned on the back of the shell.
Preferably, a waterproof protective sleeve is arranged outside the standby power supply.
Has the advantages that:
the invention divides the three cavities in the shell, thereby reducing the excessive heat generated by excessive circuit elements in the same space, and arranging the fan fans, wherein each fan cools the electric appliance in one cavity, thereby realizing the effective cooling of the transformer main body.
And a buffer mechanism is arranged at the bottom of the transformer shell, and the damage effect of seismic waves with certain intensity and specific frequency on the normal operation of the dry-type transformer is eliminated through the buffer action of the disc spring.
Drawings
Fig. 1 is a schematic structural view of a low-noise dry-type transformer according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a low noise dry transformer according to the present invention;
fig. 3 is a schematic diagram of a connection structure of three single-phase dry-type transformers according to the present invention.
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 obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.
As shown in fig. 1-3, the embodiment of the present invention provides a low-noise dry-type transformer, which includes a main body, the main body includes a housing 1, an electrical component and a fan 2 disposed inside the housing, a buffer component 3 disposed at the bottom of the housing 1, and a standby power supply 4;
three cavities are arranged in the shell 1, a single-phase dry-type transformer 5 is arranged in each cavity, a motor fan 2 is arranged in each cavity, and each motor fan 2 is opposite to one single-phase dry-type transformer 5; the shell 1 is provided with a vent hole 11, and the vent hole 11 is positioned on the back of the shell 1; the number of the ventilation holes 11 is plural, and the motor fan 2 forms a blowing passage to ensure rapid circulation of air.
The buffer mechanism 3 comprises a base, a plurality of support frames 31 are arranged on the base, disc springs 32 are sleeved on the support frames 31, and the shell 1 is movably erected at the top ends of the support frames 31;
the top end of the disc spring 32 is provided with a support plate 33, the support plate 33 is sleeved on the support frame 31, and when the shell 1 is erected on the support frame 31, the support plate 33 supports the shell 1.
The top end of the support frame 31 is provided with a movable bolt 34, the support frame 31 penetrates into the inner side of the shell 1 from the outer side of the bottom of the shell 1, and at the moment, the movable bolt 34 fixes the bottom of the shell 1 between the movable bolt 34 and the supporting plate 33.
The stability of the shell 1 is ensured by fastening the movable bolt 34 and the supporting plate 33 below, the disc spring 32 is arranged below, and the shell is buffered on the disc spring, so that the stability of the whole machine is ensured.
The standby power supply 4 is hung outside the shell 1, and the standby power supply 4 is electrically connected with the motor fan 2. The outside of the standby power supply 4 is provided with a waterproof protective sleeve. The standby power supply adopts an external structure, and the power supply and the transformer part are divided and distinguished, so that mutual interference of circuits is avoided.
Referring to fig. 3, three single-phase dry-type transformers 5 are independently placed and electrically connected, each single-phase dry-type transformer 5 includes a primary winding and a secondary winding, the primary windings of the three single-phase dry-type transformers 5 are connected in a D-shape or a Y-shape, the secondary windings of the three single-phase dry-type transformers are connected in a Y-shape, the primary winding of each single-phase dry-type transformer is a high-voltage side, and the secondary winding of each single-phase dry-type transformer is a low-voltage side. Specifically, from left to right, there are a first single-phase dry-type transformer, a second single-phase dry-type transformer and a third single-phase dry-type transformer, where A, N denotes two ends of the primary winding, and a and n denote two ends of the secondary winding; in the second single-phase dry-type transformer, B, N denotes both ends of the primary winding, and b, n denote both ends of the secondary winding; in the third single-phase dry-type transformer, C, N denotes both ends of the primary winding, and c, n denote both ends of the secondary winding. The n ends of the secondary windings of the three single-phase dry-type transformers 10 are connected, and the a, b and c ends are respectively used for connecting a three-phase power supply, so that a Y-shaped connection is formed. The three groups of single-phase dry-type transformers form a system structure of one transformer, the requirement of an internal circuit structure of the transformer is lowered, the workload of each single-phase dry-type transformer is reduced, and the later-stage maintenance and repair are facilitated.
According to the invention, the three cavities are divided in the shell 1, so that excessive heat generated by excessive circuit elements in the same space is reduced, and the fans 2 are arranged, so that each fan cools the electric appliance in one cavity, and the effective cooling of the transformer main body is realized.
And the bottom of the transformer shell 1 is provided with a buffer mechanism, and the damage effect of seismic waves with certain intensity and specific frequency on the normal operation of the dry-type transformer is eliminated through the buffer action of the disc spring 32.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. A low-noise dry-type transformer is characterized by comprising a main body, wherein the main body comprises a shell, an electric appliance assembly and a fan which are arranged in the shell, and a buffer assembly and a standby power supply which are arranged at the bottom of the shell;
the shell is internally provided with three cavities, a single-phase dry-type transformer is arranged in each cavity, a motor fan is arranged in each cavity, and each motor fan is opposite to one single-phase dry-type transformer;
the buffer mechanism comprises a base, a plurality of support frames are arranged on the base, disc springs are sleeved on the support frames, and the shell is movably erected at the top ends of the support frames;
the standby power supply is hung on the outer side of the shell and electrically connected with the motor fan.
2. A low noise dry transformer according to claim 1, wherein each of the three single phase dry transformers comprises a primary winding and a secondary winding, the primary windings of the three single phase dry transformers are connected in a D-shape or a Y-shape, and the secondary windings of the three single phase dry transformers are connected in a Y-shape.
3. A low noise dry-type transformer according to claim 2, wherein the primary winding of each of the single-phase dry-type transformers is a high voltage side, and the secondary winding of each of the single-phase dry-type transformers is a low voltage side.
4. A low noise dry transformer as claimed in claim 1 wherein said disc spring is provided at a top end thereof with a support plate, said support plate is fitted over said support frame, and said support plate supports said housing when said housing is erected on said support frame.
5. A low noise dry transformer as claimed in claim 4 wherein said support frame is provided with a movable bolt at the top end and said support frame is inserted into the inside of the housing from the outside of the bottom of the housing, and said movable bolt fixes the bottom of the housing between said movable bolt and said supporting plate.
6. A low noise dry transformer as claimed in claim 1 wherein said housing is formed with a vent hole, said vent hole being formed in a rear surface of said housing.
7. A low noise dry transformer according to claim 1, wherein a waterproof sheath is provided outside the backup power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548922.1A CN111816407A (en) | 2020-06-16 | 2020-06-16 | Low-noise dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548922.1A CN111816407A (en) | 2020-06-16 | 2020-06-16 | Low-noise dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111816407A true CN111816407A (en) | 2020-10-23 |
Family
ID=72845750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010548922.1A Pending CN111816407A (en) | 2020-06-16 | 2020-06-16 | Low-noise dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111816407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116479849A (en) * | 2023-04-26 | 2023-07-25 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014022397A (en) * | 2012-07-12 | 2014-02-03 | Hitachi Industrial Equipment Systems Co Ltd | Mold transformer and mold coil |
| CN204332646U (en) * | 2014-12-12 | 2015-05-13 | 深圳市奥电高压电气有限公司 | Assembled three-phase dry-type transformer |
| CN206098081U (en) * | 2016-08-25 | 2017-04-12 | 金三角电力科技股份有限公司 | Resin pouring dry -type transformer |
| CN107045921A (en) * | 2017-04-07 | 2017-08-15 | 国网安徽省电力公司淮北供电公司 | A kind of quake-proof supporting structure of dry-type transformer |
| CN206489928U (en) * | 2017-03-01 | 2017-09-12 | 金文城 | A kind of damping noise reduction dry-type transformer |
| CN108766730A (en) * | 2018-05-25 | 2018-11-06 | 肇庆中能创智信息科技有限公司 | A kind of novel and multifunctional electric power electric transformer |
| CN208141967U (en) * | 2018-05-04 | 2018-11-23 | 广东电网有限责任公司 | Noise reduction device for dry-type transformer |
| CN209447637U (en) * | 2019-03-12 | 2019-09-27 | 江西远大科技有限公司 | A kind of easy-to-dismount protective shell of power transformer |
| CN209729670U (en) * | 2019-05-10 | 2019-12-03 | 合肥景喜电气设备有限公司 | A kind of level-one efficiency dry-type transformer |
-
2020
- 2020-06-16 CN CN202010548922.1A patent/CN111816407A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014022397A (en) * | 2012-07-12 | 2014-02-03 | Hitachi Industrial Equipment Systems Co Ltd | Mold transformer and mold coil |
| CN204332646U (en) * | 2014-12-12 | 2015-05-13 | 深圳市奥电高压电气有限公司 | Assembled three-phase dry-type transformer |
| CN206098081U (en) * | 2016-08-25 | 2017-04-12 | 金三角电力科技股份有限公司 | Resin pouring dry -type transformer |
| CN206489928U (en) * | 2017-03-01 | 2017-09-12 | 金文城 | A kind of damping noise reduction dry-type transformer |
| CN107045921A (en) * | 2017-04-07 | 2017-08-15 | 国网安徽省电力公司淮北供电公司 | A kind of quake-proof supporting structure of dry-type transformer |
| CN208141967U (en) * | 2018-05-04 | 2018-11-23 | 广东电网有限责任公司 | Noise reduction device for dry-type transformer |
| CN108766730A (en) * | 2018-05-25 | 2018-11-06 | 肇庆中能创智信息科技有限公司 | A kind of novel and multifunctional electric power electric transformer |
| CN209447637U (en) * | 2019-03-12 | 2019-09-27 | 江西远大科技有限公司 | A kind of easy-to-dismount protective shell of power transformer |
| CN209729670U (en) * | 2019-05-10 | 2019-12-03 | 合肥景喜电气设备有限公司 | A kind of level-one efficiency dry-type transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116479849A (en) * | 2023-04-26 | 2023-07-25 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
| CN116479849B (en) * | 2023-04-26 | 2023-12-12 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
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Application publication date: 20201023 |