CN113299460A - Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer - Google Patents
Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer Download PDFInfo
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- CN113299460A CN113299460A CN202110540738.7A CN202110540738A CN113299460A CN 113299460 A CN113299460 A CN 113299460A CN 202110540738 A CN202110540738 A CN 202110540738A CN 113299460 A CN113299460 A CN 113299460A
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- speed rail
- autotransformer
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 2
- 239000000428 dust Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining 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
- H01F27/08—Cooling; Ventilating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer, which comprises: a transformation device that can change an alternating voltage using a principle of electromagnetic induction, the transformation device including a case and a transformer main body; the heat dissipation assembly is used for absorbing hot air in the shell and comprises a gas collection part and a driving part, the gas collection part is used for absorbing heat emitted by an oil tank inside the transformer main body during working and transmitting the heat to the outside of the shell, and the driving part is used for controlling the gas collection part to perform reciprocating air suction and air spitting work. The oil-immersed high-speed rail autotransformer is at the in-process of work, and this moment under drive assembly's effect, gas collection part can carry out reciprocating type work of breathing in and spitting out gas to reach and carry out radiating effect in the casing, ensure that the transformer main part can not be in high temperature environment for a long time, reduced the possibility that the potential safety hazard appears.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer.
Background
The distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, is a device for changing alternating-current voltage by using the principle of electromagnetic induction, and has main components of a primary coil, a secondary coil and an iron core (magnetic core), wherein an oil-immersed transformer is a common one.
The oil temperature in the oil tank can continuously rise in the working process of the existing oil-immersed high-speed rail autotransformer, and a transformer body can work in a high-temperature environment for a long time due to the fact that no good heat dissipation structure exists, short circuits easily occur, the phenomenon of damage exists, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the following defects in the prior art, the oil temperature of the existing oil-immersed high-speed rail autotransformer can continuously rise in the working process, the existing oil-immersed high-speed rail autotransformer generally adopts a device structure made of a heat dissipation material to insulate heat of an oil tank in a transformer main body at high temperature, and the like, but the cooling effect is poor in the mode, the oil tank is not easy to be rapidly cooled, the oil temperature in the oil-immersed transformer under high-intensity working is easy to continuously rise, and potential safety hazards exist.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy-concerving and environment-protective oily formula high-speed railway autotransformer includes:
the transformer device can change alternating voltage by utilizing the principle of electromagnetic induction, and comprises a shell and a transformer main body, wherein the transformer main body is fixedly arranged in the shell, oil tanks are fixedly arranged on the upper surface and the lower surface of the interior of the transformer main body, and winding groups are fixedly arranged in the upper oil tanks;
the heat dissipation assembly is used for absorbing hot air in the shell and comprises a gas collection part and a driving part, the gas collection part is used for absorbing heat emitted by an oil tank inside the transformer main body during working and transmitting the heat to the outside of the shell, and the driving part is used for controlling the gas collection part to perform reciprocating air suction and air spitting work.
Preferably, the gas collection part includes two gasbags and two spring levers, the equal fixed mounting of the conch wall has a mounting panel about in the casing, two the gasbag is perpendicular fixed mounting respectively on two mounting panels, two the spring lever perpendicular fixed mounting respectively in two gasbags and both ends respectively with roof and diapire fixed connection in the gasbag, the gasbag is close to the equal fixed mounting of lateral wall about the lower extreme has outlet duct and intake pipe rather than being linked together, the casing is worn out to the one end that the gasbag was kept away from to the outlet duct, all be equipped with the check valve in outlet duct and the intake pipe, the switch-on direction of check valve is outside to the casing in by the gasbag in the outlet duct, the switch-on direction of check valve is in the intake pipe for by the casing inside to in the gasbag.
Preferably, the driving part comprises a motor, a reciprocating screw rod, a sliding block and two pressing plates, the motor is fixedly installed on the upper surface of the shell, an output shaft of the motor penetrates into the shell, the motor is fixedly installed with one end of the reciprocating screw rod in a vertical fixed mode, the sliding block is in threaded sleeve connection with the reciprocating screw rod, the left side wall and the right side wall of the sliding block are horizontally fixedly installed with one end of the two pressing plates, and the two pressing plates are located above the two air bags, and the lower surfaces of the two pressing plates are opposite to the upper surfaces of the air bags.
Preferably, the dwang is installed to the perpendicular rotation of casing diapire symmetry, be equipped with reciprocal screw thread and screw thread on the dwang and cup jointed the movable block, two the equal horizontal fixed mounting in one side that the movable block is close to each other has the movable rod, the one end fixed mounting that the movable block was kept away from to the movable rod has first sponge strip, two first sponge strip respectively with the transformer main part about lateral wall sliding contact, be equipped with the control dwang in the casing and take place pivoted drive disk assembly.
Preferably, drive disk assembly includes two rack bars, two worms, two gears and two worm wheels, two rack bar vertical fixation installs at the lower surface of two clamp plates, two the worm respectively with the casing in the casing about the conch wall vertical rotation installation, two the gear respectively with two worms one end that are close to each other fixed cup joint and be connected with two rack bar meshing respectively, two the worm wheel is fixed respectively cup joint on two dwang and be connected with two worm meshing respectively.
Preferably, two the equal vertical fixed mounting in one side that the rack bar is close to each other has the dead lever, two the equal fixed mounting in one side that the dead lever is close to each other has the second sponge strip, two the one end that the second sponge strip is close to each other is lateral wall sliding contact about with transformer main body respectively.
Preferably, the two rotating rods are fixedly sleeved with rotating blades, and the rotating blades are located below the moving blocks.
Preferably, the upper surface of the shell is vertically provided with a plurality of heat dissipation holes communicated with the inside of the shell.
Compared with the prior art, the invention has the beneficial effects that:
1. oily formula high-speed railway autotransformer is at the in-process of work, and this moment under drive assembly's effect, the gas collection part can carry out reciprocating type work of breathing in and spitting out to can be constantly absorb the steam in the casing and outside the blowout casing, thereby reach and carry out radiating effect in the casing, ensure that the transformer main part can not be in high temperature environment for a long time, thereby reduced the possibility that the potential safety hazard appears.
2. The radiating component is at the in-process of carrying out the work of dispelling the heat in the casing, and this moment under drive disk assembly's effect, a plurality of first sponge strips and second sponge strip can carry out reciprocating type cleaning work to the lateral wall about transformer body, guarantee can not have the dust to pile up the phenomenon that can't give out at the lateral wall about transformer body and then lead to the inside heat of transformer body.
Drawings
Fig. 1 is a schematic cross-sectional view of a partial three-dimensional structure of an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer provided by the invention;
fig. 2 is a schematic structural diagram of the front side of an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer provided by the invention;
fig. 3 is a schematic view of a partial cross-sectional structure of an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer provided by the invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
fig. 5 is an enlarged view of the structure at B in fig. 3.
In the figure: the transformer comprises a shell 1, a transformer body 2, an oil tank 3, a winding set 4, an air bag 5, a mounting plate 6, an air outlet pipe 7, an air inlet pipe 8, a spring rod 9, a motor 10, a reciprocating screw rod 11, a sliding block 12, a pressing plate 13, a rotating rod 14, heat dissipation holes 15, a moving block 16, a moving rod 17, a first sponge strip 18, a rack rod 19, a worm 20, a gear 21, a worm wheel 22, a fixed rod 23, a second sponge strip 24 and a rotating blade 25.
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.
Referring to fig. 1-5, an energy-saving and environment-friendly oil-immersed high-speed rail autotransformer comprises:
the transformer device can change alternating voltage by utilizing the principle of electromagnetic induction, and comprises a shell 1 and a transformer main body 2, wherein the transformer main body 2 is fixedly arranged in the shell 1, oil tanks 3 are fixedly arranged on the upper surface and the lower surface in the transformer main body 2, and a winding group 4 is fixedly arranged in the upper oil tank 3;
the heat dissipation assembly is used for absorbing hot air in the shell 1 and comprises a gas collection part and a driving part, the gas collection part is used for absorbing heat emitted by the oil tank 3 inside the transformer body 2 during working and transmitting the heat to the outside of the shell 1, and the driving part is used for controlling the gas collection part to perform reciprocating air suction and air spitting work.
In the embodiment of the application of the technical scheme, the oil-immersed high-speed rail autotransformer is in the working process, at the moment, under the action of the driving part, the gas collecting part can perform reciprocating type air suction and air spitting work, so that hot gas in the shell 1 can be continuously absorbed and sprayed out of the shell 1, the effect of heat dissipation in the shell 1 is achieved, the transformer main body 2 is ensured not to be in a high-temperature environment for a long time, and the possibility of potential safety hazards is reduced.
The preferred technical scheme in this embodiment, gas collecting part includes two gasbags 5 and two spring levers 9, the equal fixed mounting of the concha wall has mounting panel 6 about in casing 1, two gasbags 5 perpendicular fixed mounting respectively is on two mounting panels 6, two spring levers 9 perpendicular fixed mounting respectively in two gasbags 5 and both ends respectively with roof and diapire fixed connection in the gasbag 5, gasbag 5 is close to the equal fixed mounting of lateral wall about the lower extreme has outlet duct 7 and intake pipe 8 rather than being linked together, the one end that gasbag 5 was kept away from to outlet duct 7 wears out casing 1, all be equipped with the check valve in outlet duct 7 and the intake pipe 8, the direction of switching on of the check valve in the outlet duct 7 is by in the gasbag 5 to casing 1 outside, the direction of switching on of the check valve in the intake pipe 8 is by casing 1 inside to in the gasbag 5. When gasbag 5 received extrusion deformation, inner space diminishes this moment, and pressure increases, 5 inside gas of gasbag just can extrude from outlet duct 7, when gasbag 5 no longer received the extrusion, this moment under the effect of spring beam 9, gasbag 5 playback rapidly to inside volume grow, pressure reduces this moment, just can inhale self inside with the steam in the casing 1 from intake pipe 8, wait for next time by casing 1 with steam discharge again when extruded.
In the preferred technical scheme of this embodiment, the driving part includes a motor 10, a reciprocating screw rod 11, a slider 12 and two pressing plates 13, the motor 10 is fixedly installed on the upper surface of the housing 1, an output shaft penetrates into the housing 1 and is vertically and fixedly installed with one end of the reciprocating screw rod 11, the slider 12 is sleeved on the reciprocating screw rod 11 in a threaded manner, the left and right side walls of the slider are horizontally and fixedly installed with one end of the two pressing plates 13, and the two pressing plates 13 are located above the two airbags 5 and the lower surfaces of the two pressing plates are opposite to the upper surfaces of. When the motor 10 is started, the two pressing plates 13 reciprocate in the vertical direction, so that the air bag 5 below is pressed in a reciprocating manner.
According to the preferable technical scheme in the embodiment, the bottom wall of the shell 1 is symmetrically and vertically rotatably provided with the rotating rod 14, the rotating rod 14 is provided with the reciprocating threads and the moving blocks 16 in a sleeved mode, the moving rods 17 are horizontally and fixedly arranged on one surfaces, close to each other, of the two moving blocks 16, one end, far away from the moving blocks 16, of the moving rods 17 is fixedly provided with the first sponge strips 18, the two first sponge strips 18 are in sliding contact with the left side wall and the right side wall of the transformer body 2 respectively, and the shell 1 is internally provided with the transmission part for controlling the. When the dwang 14 takes place to rotate, the movable block 16 that the screw thread cup jointed on the dwang 14 this moment just can take first sponge strip 18 to take place reciprocating motion on the vertical direction, and first sponge strip 18 just can carry out reciprocating type cleaning work to the lateral wall about transformer body 2, guarantees not to have the dust to pile up the phenomenon that can't distribute out at the lateral wall about transformer body 2 and then lead to the inside heat of transformer body 2.
According to the preferable technical scheme in the embodiment, the transmission part comprises two rack rods 19, two worms 20, two gears 21 and two worm wheels 22, the two rack rods 19 are vertically and fixedly installed on the lower surfaces of the two pressing plates 13, the two worms 20 are respectively and vertically and rotatably installed with the left and right shell walls in the shell 1, the two gears 21 are respectively and fixedly sleeved with one ends of the two worms 20 close to each other and are respectively and meshingly connected with the two rack rods 19, and the two worm wheels 22 are respectively and fixedly sleeved on the two rotating rods 14 and are respectively and meshingly connected with the two worms 20. The rack bar 19 is moved in a reciprocating vertical direction along with the pressure plate 13, so that during the pressing down of the rack bar 19, the gear 21 which is engaged with the gear and fixedly sleeved on the worm 20 rotates the worm 20 at this time, and the worm wheel 22 which is engaged with the worm 20 and fixedly sleeved on the rotating rod 14 rotates the rotating rod 14 at this time.
In the preferred technical scheme of this embodiment, the fixing rods 23 are vertically and fixedly mounted on the surfaces, close to each other, of the two rack rods 19, the second sponge strips 24 are fixedly mounted on the surfaces, close to each other, of the two fixing rods 23, and one ends, close to each other, of the two second sponge strips 24 are in sliding contact with the left side wall and the right side wall of the transformer main body 2 respectively. When the rack bar 19 moves vertically to and fro along with the pressing plate 13, the fixing rod 23 also carries the second sponge strip 24 to clean the left and right side walls of the transformer body 2, so that the phenomenon that dust is accumulated on the left and right side walls of the transformer body 2 and the heat inside the transformer body 2 cannot be emitted is avoided.
According to the preferable technical scheme in the embodiment, the two rotating rods 14 are fixedly sleeved with the rotating blades 25, and the rotating blades 25 are located below the moving blocks 16. The rotating blades 25 are rotated with the rotation of the rotating lever 14, so that the flow rate of the gas in the housing 1 can be increased, thereby increasing the efficiency of heat dissipation.
According to the preferred technical scheme in the embodiment, the upper surface of the shell 1 is vertically provided with a plurality of heat dissipation holes 15 communicated with the inside of the shell. The hot air in the casing 1 can also drift out of the casing 1 through the heat dissipation holes 15.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an energy-concerving and environment-protective oily formula high-speed railway auto transformer which characterized in that includes: the transformer device can change alternating voltage by utilizing the principle of electromagnetic induction, and comprises a shell (1) and a transformer main body (2), wherein the transformer main body (2) is fixedly arranged in the shell (1), oil tanks (3) are fixedly arranged on the upper surface and the lower surface of the interior of the transformer main body, and winding groups (4) are fixedly arranged in the upper oil tanks (3);
the heat dissipation assembly is used for absorbing hot air in the shell (1), the heat dissipation assembly comprises a gas collection part and a driving part, the gas collection part is used for absorbing heat emitted by the transformer main body (2) in an internal oil tank (3) during working and transmitting the heat to the outside of the shell (1), and the driving part is used for controlling the gas collection part to perform reciprocating air suction and air spitting.
2. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer according to claim 1, wherein the gas collecting component comprises two air bags (5) and two spring rods (9), the left and right shell walls in the shell (1) are fixedly provided with mounting plates (6), the two air bags (5) are respectively and vertically and fixedly mounted on the two mounting plates (6), the two spring rods (9) are respectively and vertically and fixedly mounted in the two air bags (5), two ends of each spring rod are respectively and fixedly connected with the top wall and the bottom wall in the air bag (5), the left and right side walls of the air bag (5) close to the lower end are respectively and fixedly provided with an air outlet pipe (7) and an air inlet pipe (8) communicated with the air outlet pipe, one end of the air outlet pipe (7) far away from the air bags (5) penetrates out of the shell (1), one-way valves are respectively arranged in the air outlet pipe (7) and the air inlet pipe (8), and the conduction direction of the one-way valve in the air outlet pipe (7) is from the interior of the air bags (5) to the exterior of the shell (1), the conduction direction of the one-way valve in the air inlet pipe (8) is from the inside of the shell (1) to the inside of the air bag (5).
3. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer according to claim 2, wherein the driving part comprises a motor (10), a reciprocating screw rod (11), a sliding block (12) and two pressing plates (13), the motor (10) is fixedly installed on the upper surface of the shell (1), an output shaft penetrates into the shell (1) and is vertically and fixedly installed with one end of the reciprocating screw rod (11), the sliding block (12) is sleeved on the reciprocating screw rod (11) in a threaded manner, left and right side walls of the sliding block and one end of the two pressing plates (13) are horizontally and fixedly installed, the two pressing plates (13) are located above the two air bags (5), and the lower surfaces of the two pressing plates are opposite to the upper surfaces of the air bags (5).
4. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer according to claim 3, wherein a rotating rod (14) is symmetrically and vertically rotatably mounted on the inner bottom wall of the housing (1), a reciprocating thread is arranged on the rotating rod (14), a moving block (16) is sleeved on the rotating rod (14), a moving rod (17) is horizontally and fixedly mounted on one surface, close to the moving block (16), of the moving rod (17), a first sponge strip (18) is fixedly mounted at one end, far away from the moving block (16), of the moving rod (17), the two first sponge strips (18) are in sliding contact with the left side wall and the right side wall of the transformer main body (2) respectively, and a transmission part for controlling the rotating rod (14) to rotate is arranged in the housing (1).
5. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer as claimed in claim 4, wherein the transmission component comprises two rack rods (19), two worms (20), two gears (21) and two worm wheels (22), the two rack rods (19) are vertically and fixedly mounted on the lower surfaces of the two pressing plates (13), the two worms (20) are respectively and rotatably mounted on the inner left and right shell walls of the shell (1) in a vertical manner, the two gears (21) are respectively fixedly sleeved on the ends, close to the two worms (20), of the two worms (20) and are respectively engaged with the two rack rods (19), and the two worm wheels (22) are respectively fixedly sleeved on the two rotating rods (14) and are respectively engaged with the two worms (20).
6. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer according to claim 5, wherein fixing rods (23) are vertically and fixedly mounted on the surfaces, close to each other, of the two rack rods (19), second sponge strips (24) are fixedly mounted on the surfaces, close to each other, of the two fixing rods (23), and one ends, close to each other, of the two second sponge strips (24) are in sliding contact with the left side wall and the right side wall of the transformer main body (2) respectively.
7. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer according to claim 4, wherein rotating blades (25) are fixedly sleeved on the two rotating rods (14), and the rotating blades (25) are located below the moving blocks (16).
8. The energy-saving and environment-friendly oil-immersed high-speed rail autotransformer as claimed in claim 1, wherein the upper surface of the housing (1) is vertically provided with a plurality of heat dissipation holes (15) communicated with the inside of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540738.7A CN113299460B (en) | 2021-05-18 | 2021-05-18 | Energy-saving environment-friendly oil-immersed high-speed rail autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540738.7A CN113299460B (en) | 2021-05-18 | 2021-05-18 | Energy-saving environment-friendly oil-immersed high-speed rail autotransformer |
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| Publication Number | Publication Date |
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| CN113299460A true CN113299460A (en) | 2021-08-24 |
| CN113299460B CN113299460B (en) | 2024-04-02 |
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| CN202110540738.7A Active CN113299460B (en) | 2021-05-18 | 2021-05-18 | Energy-saving environment-friendly oil-immersed high-speed rail autotransformer |
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Citations (9)
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|---|---|---|---|---|
| JPH08181020A (en) * | 1994-12-22 | 1996-07-12 | Aichi Electric Co Ltd | Oil transformer with conservator |
| CN107910159A (en) * | 2017-11-29 | 2018-04-13 | 钟光文 | A kind of transformer for carrying heat sinking function |
| CN209657955U (en) * | 2019-03-14 | 2019-11-19 | 重庆中发电力变压器有限公司 | Distribution transformer is operated outside a kind of low pressure |
| CN209843435U (en) * | 2019-05-08 | 2019-12-24 | 江西宇恒电气有限公司 | Heat radiator in oil-immersed transformer |
| CN209929093U (en) * | 2019-04-10 | 2020-01-10 | 保定市天利变压器有限公司 | Transformer with good heat dissipation |
| CN111601479A (en) * | 2020-05-19 | 2020-08-28 | 黑龙江工业学院 | Computer system for real-time caption filling of foreign language audio image data |
| CN212542161U (en) * | 2020-10-27 | 2021-02-12 | 山东晨宇电气股份有限公司 | Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer |
| CN212724899U (en) * | 2020-09-05 | 2021-03-16 | 浙江西变电力设备有限公司 | Oil-immersed transformer with self-cleaning function |
| CN112648860A (en) * | 2020-12-07 | 2021-04-13 | 南京卡曼奇工程技术有限公司 | Heating equipment with dust removal function |
-
2021
- 2021-05-18 CN CN202110540738.7A patent/CN113299460B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08181020A (en) * | 1994-12-22 | 1996-07-12 | Aichi Electric Co Ltd | Oil transformer with conservator |
| CN107910159A (en) * | 2017-11-29 | 2018-04-13 | 钟光文 | A kind of transformer for carrying heat sinking function |
| CN209657955U (en) * | 2019-03-14 | 2019-11-19 | 重庆中发电力变压器有限公司 | Distribution transformer is operated outside a kind of low pressure |
| CN209929093U (en) * | 2019-04-10 | 2020-01-10 | 保定市天利变压器有限公司 | Transformer with good heat dissipation |
| CN209843435U (en) * | 2019-05-08 | 2019-12-24 | 江西宇恒电气有限公司 | Heat radiator in oil-immersed transformer |
| CN111601479A (en) * | 2020-05-19 | 2020-08-28 | 黑龙江工业学院 | Computer system for real-time caption filling of foreign language audio image data |
| CN212724899U (en) * | 2020-09-05 | 2021-03-16 | 浙江西变电力设备有限公司 | Oil-immersed transformer with self-cleaning function |
| CN212542161U (en) * | 2020-10-27 | 2021-02-12 | 山东晨宇电气股份有限公司 | Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer |
| CN112648860A (en) * | 2020-12-07 | 2021-04-13 | 南京卡曼奇工程技术有限公司 | Heating equipment with dust removal function |
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| CN113299460B (en) | 2024-04-02 |
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Effective date of registration: 20240229 Address after: 528308, South of Xinxi Second Road, Industrial Avenue, Lunjiao Xiyong, Lunjiao Intensive Industrial Zone, Shunde District, Foshan City, Guangdong Province (one of the fourth floors of the factory building of Fengqi Clothing Accessories Co., Ltd.) Applicant after: Foshan Defutong Electronics Co.,Ltd. Country or region after: China Address before: 528200 No. 5, real estate Road, Songgang Songxia Industrial Park, Shishan town, Nanhai District, Foshan City, Guangdong Province Applicant before: Huang Xiuqin Country or region before: China |
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