CN112865402B - Low-noise high-voltage motor - Google Patents
Low-noise high-voltage motor Download PDFInfo
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- CN112865402B CN112865402B CN202110386882.XA CN202110386882A CN112865402B CN 112865402 B CN112865402 B CN 112865402B CN 202110386882 A CN202110386882 A CN 202110386882A CN 112865402 B CN112865402 B CN 112865402B
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- motor
- noise high
- motor housing
- oil
- high voltage
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- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000013016 damping Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 55
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a low-noise high-voltage motor, which relates to the technical field of motors, in particular to a low-noise high-voltage motor, and comprises a motor shell, wherein a door plate is movably arranged on the front surface of the motor shell, a motor main body is fixedly arranged in the motor shell, two fixing plates are welded at the top of the door plate, a handle positioned between the two fixing plates is fixedly arranged on the front surface of the door plate, fastening bolts are sleeved on external threads of the fixing plates, and a refrigerator and an oil tank are fixedly arranged on the back surface and the top of the motor shell respectively. This low noise high voltage motor uses through the cooperation of oil tank and oil pipe and spray base and shower nozzle for the staff can make the inside atmospheric pressure of oil tank rise through pressing the button at oil tank top in high voltage motor's outside, thereby makes the inside lubricating oil of storing of oil tank flow into the inside of spraying the base through oil pipe, and the rethread sprays the outside at the transmission shaft of the inside even injection of base from the shower nozzle.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a low-noise high-voltage motor.
Background
The high-voltage motor is a motor with rated voltage above 1000V. Voltages of 6000V and 10000V are commonly used, and voltage levels of 3300V and 6600V are also available due to different power grids in different regions. High voltage motors are produced because motor power is proportional to the product of voltage and current, so that the current to which motor power increases to some extent (e.g., 300 KW/380V) is limited by the allowable bearing capacity of the wires, which can be difficult or cost prohibitive. It is necessary to achieve high power output by increasing the voltage. The high-voltage motor has high power and strong impact bearing capacity, and can be used for driving various different machines. Such as compressors, water pumps, crushers, cutting tools, transportation machinery and other equipment, for use as prime movers in various industries such as mining, machinery industry, petrochemical industry, generators and the like. The motors used for driving the blower, the coal mill, the rolling mill and the windlass should be noted for the purpose and the technical requirement when ordering, and special designs are adopted to ensure the reliable operation.
The high-voltage motor is widely applied in various fields, but the high-voltage motor is also indispensable under the condition of obvious advantages, firstly, the noise generated by the high-voltage motor during operation is often larger, the main source of the noise is bearing rotation, and the motor main body works, the common high-voltage motor is not provided with a convenient mode for oiling the bearing to reduce the noise, and secondly, the common high-voltage motor is very complicated in steps during installation, disassembly and overhaul due to the complex structure, so that the low-noise high-voltage motor is designed to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-noise high-voltage motor, which solves the problems in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a low noise high voltage motor, includes motor housing, motor housing's front movable mounting has the door plant, and motor housing's inside fixed mounting has motor main part, the top welding of door plant has two fixed plates, and the front fixed mounting of door plant has the handle that is located between two fixed plates, the outside screw thread of fixed plate has cup jointed fastening bolt, motor housing's back and top fixed mounting have refrigerator and oil tank respectively, and motor housing's top fixed cover has the cold gas mouth that is located the oil tank right side, fixedly connected with evenly distributed's air conditioning pipeline between refrigerator and the cold gas mouth, motor housing's inside fixed cover is equipped with the spray base that is located the oil tank left, spray base's end extends to motor housing's outside and with the oil tank between fixedly connected with oil pipe, and spray base's bottom fixed cover has two shower nozzles, motor housing's inside fixed mounting has the motor main part that is located the cold gas mouth below, and motor housing's left side fixed mounting has the speed controller, motor main part's output fixed cover has the transmission shaft, motor housing's inside movable cover has the oil absorption board that is located the transmission shaft below, the bottom fixed connection has the pull ring, the fixed mounting has the bottom limiting plate.
Optionally, four evenly distributed damping bases are fixedly arranged at the bottom of the motor shell, and the height value of each damping base is greater than that of each limiting plate and each oil absorption plate.
Optionally, the bottom ends of the two spray heads incline towards the middle part, and the two spray heads are positioned above the transmission shaft.
Optionally, a through groove matched with the oil suction plate is formed in the bottom of the motor shell, a magnet is fixedly mounted on the outer portion of the limiting plate, and a groove matched with the magnet is formed in the bottom of the motor shell.
Optionally, the tail end of the cold air port extends to the inside of the motor shell, and the inside of the cold air port is fixedly sleeved with a partition plate which is uniformly distributed.
Optionally, the left end of transmission shaft extends to the outside of motor housing, and the fixed cover is equipped with the oil slinger between transmission shaft and the motor housing.
Optionally, a speed controller is fixedly installed on the left side of the motor shell, and the speed controller is movably sleeved on the outside of the transmission shaft.
Optionally, the inboard fixed mounting of door plant has the acoustic celotex board, the inside fixed mounting of motor housing has the acoustic celotex board that is located motor main part bottom and rear.
The invention provides a low-noise high-voltage motor, which has the following beneficial effects:
1. this low noise high voltage motor uses through the cooperation of oil tank and oil pipe and spray base and shower nozzle for the staff can make the inside atmospheric pressure of oil tank rise through pressing the button at oil tank top in the outside of high voltage motor, thereby makes the inside lubricating oil that stores of oil tank flow into the inside of spraying the base through oil pipe, and the rethread sprays the base from the inside even injection of shower nozzle in the outside of transmission shaft, very big simplification this high voltage motor's bearing oiling operation.
2. This low noise high voltage motor uses through the cooperation of pull ring and limiting plate and oil absorption board and motor housing for this low noise high voltage motor sets up in motor housing's bottom with oil absorption board assorted link up recess and with the outside fixed mounting's of limiting plate magnet assorted recess, let the inside that the oil absorption board can insert motor housing, accomplish fixedly through the outside magnet of limiting plate, make the oil absorption board can absorb drip or remaining lubricating oil in the below of transmission shaft, can directly stimulate pull ring and limiting plate and take out the oil absorption board from motor housing's inside when need change the washing, simplified this high voltage motor to the clearance step of remaining lubricating oil.
3. This low noise high voltage motor uses through the cooperation of door plant and handle and fixed plate and fastening bolt for this low noise high voltage motor can be opened or closed motor housing through the door plant, and the screw with fixed plate assorted that offers through fixed plate and fastening bolt and motor housing top makes the door plant fixed, very big convenience the staff to the dismantlement installation of this high voltage motor and to the inside structure of motor housing regularly overhaul and maintain.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the rear structure of the present invention;
FIG. 3 is a schematic view of the structure of the inside of the motor housing of the present invention;
FIG. 4 is a schematic view of the structure of the refrigerator and the cold air port of the present invention;
fig. 5 is a schematic structural view of the oil absorbing plate and the limiting plate of the present invention.
In the figure: 1. a motor housing; 2. a cold air port; 3. a cold air duct; 4. a refrigerating machine; 5. an oil tank; 6. an oil pipe; 7. oil slinger; 8. a transmission shaft; 9. a speed controller; 10. a door panel; 11. a shock absorbing base; 12. a handle; 13. a fixing plate; 14. a fastening bolt; 15. a pull ring; 16. an oil suction plate; 17. a limiting plate; 18. a sound insulation board; 19. a spray head; 20. spraying a base; 21. a motor body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: the low-noise high-voltage motor comprises a motor housing 1, a door plate 10 is movably arranged on the front surface of the motor housing 1, a motor main body 21 is fixedly arranged in the motor housing 1, two fixing plates 13 are welded at the top of the door plate 10, a handle 12 positioned between the two fixing plates 13 is fixedly arranged on the front surface of the door plate 10, a sound insulation plate 18 is fixedly arranged on the inner side of the door plate 10, a sound insulation plate 18 positioned at the bottom and the rear of the motor main body 21 is fixedly arranged in the motor housing 1, the sound insulation plate 18 is distributed around the motor main body 21 and can absorb noise generated in the operation of the motor main body 21 to a certain extent, the noise reduction effect of the high-voltage motor is further improved, a fastening bolt 14 is sleeved on external threads of the fixing plates 13, a refrigerator 4 and an oil tank 5 are fixedly arranged at the back surface and the top of the motor housing 1 respectively, a cold air port 2 positioned on the right side of the oil tank 5 is fixedly sleeved on the top of the motor housing 1, the outside of the oil tank 5 is provided with a button, a worker can increase the air pressure inside the oil tank 5 by pressing the button, an evenly distributed cold air pipeline 3 is fixedly connected between the refrigerator 4 and the cold air port 2, the tail end of the cold air port 2 extends to the inside of the motor shell 1, an evenly distributed baffle is fixedly sleeved in the inside of the cold air port 2, the tail end of the cold air port 2 extends to the inside of the motor shell 1 and is provided with the evenly distributed baffle, cold air generated by the refrigerator 4 can be evenly dispersed to the outside of the motor body 21 under the action of the baffle in the inside of the cold air port 2 after being filled into the inside of the cold air port 2 through the cold air pipeline 3, a spray base 20 positioned at the left side of the oil tank 5 is fixedly sleeved in the inside of the motor shell 1, the tail end of the spray base 20 extends to the outside of the motor shell 1 and an oil pipe 6 is fixedly connected with the oil tank 5, the bottom of the spray base 20 is fixedly sleeved with two spray heads 19, the bottom ends of the two spray heads 19 incline towards the middle, the two spray heads 19 are positioned above the transmission shaft 8, the bottom ends of the spray heads 19 are opposite to the transmission shaft 8, lubricating oil can be sprayed out of the transmission shaft 8 to the greatest extent through the spray heads 19, the oiling of the transmission shaft 8 is more comprehensive, the noise reduction effect is better, the motor main body 21 positioned below the cold air port 2 is fixedly arranged in the motor housing 1, the speed controller 9 is fixedly arranged at the left side of the motor housing 1, the transmission shaft 8 is fixedly sleeved at the output end of the motor main body 21, the left end of the transmission shaft 8 extends to the outside of the motor housing 1, the oil slinger 7 is fixedly sleeved between the transmission shaft 8 and the motor housing 1, the transmission shaft 8 serving as an output shaft of the motor main body 21 needs to extend to the outside of the motor housing 1 and be connected with other machine components to work, the oil slinger 7 between the transmission shaft 8 and the motor housing 1 is used for oil sealing of the motor housing 1 to prevent lubricating oil from being thrown out, a speed controller 9 is fixedly arranged on the left side of the motor housing 1, the speed controller 9 is movably sleeved outside the transmission shaft 8, the speed controller 9 can control the rotating speed of the transmission shaft 8, a worker can adjust the whole working condition of the high-voltage motor through the speed controller 9, in the prior art, an oil absorption plate 16 positioned below the transmission shaft 8 is movably sleeved inside the motor housing 1, the bottom of the oil absorption plate 16 is fixedly connected with a limiting plate 17, a pull ring 15 is fixedly arranged at the bottom of the limiting plate 17, four evenly distributed damping bases 11 are fixedly arranged at the bottom of the motor housing 1, the height value of the damping bases 11 is larger than the height values of the limiting plate 17 and the oil absorption plate 16, the shock-absorbing mount 11 that the bottom of motor housing 1 was installed can provide the support to motor housing 1 on the one hand to play certain cushioning effect, provide good operational environment for high-voltage motor, on the other hand can rise the position of motor housing 1, be convenient for oil absorption board 16 and limiting plate 17 follow motor housing 1's bottom and take out, motor housing 1's bottom has been seted up with oil absorption board 16 assorted link up the recess, limiting plate 17's outside fixed mounting has the magnet, motor housing 1's bottom has been seted up with magnet assorted recess, the outside recess of magnet cooperation motor housing 1 bottom of limiting plate 17 makes can be connected through the magnet between limiting plate 17 and the motor housing 1, thereby make the taking off and the installation of limiting plate 17 all very convenient.
In summary, when the low-noise high-voltage motor is used, the button at the top of the oil tank 5 is pressed to raise the air pressure inside the oil tank 5, the lubricating oil inside the oil tank 5 flows into the spraying base 20 through the oil pipe 6, the lubricating oil is sprayed out of the transmission shaft 8 from the tail end of the spraying base 20 and the spray head 19 through the cooperation of the spraying base 19, residual lubricating oil drops onto the oil suction plate 16 along the outer surface of the transmission shaft 8, when the oil suction plate 16 needs to be replaced, the pull ring 15 is directly grasped to draw out the limiting plate 17 and the oil suction plate 16, the through groove at the bottom of the motor shell 1 is inserted after the replacement is completed, the magnet at the outer part of the limiting plate 17 is sleeved with the groove at the bottom of the motor shell 1, the motor body 21 drives the transmission shaft 8 to rotate at a high speed during the operation of the high-voltage motor, the refrigerator 4 starts and prepares the cold air, the cold air is conveyed to the inner part of the cold air port 2 through the cold air pipeline 3, the cold air is uniformly distributed outside the motor body 21, when the regular maintenance is needed to be carried out on the inner part of the motor shell 1, the fixing plate 13 and the motor shell 1 are disconnected through the rotation fastening bolts 14, the motor shell 12, the motor door plate 10 is opened, the motor shell 1 is completely, and the low-voltage oil is cleaned, and the high-voltage motor is cleaned.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Moreover, 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.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A low noise high voltage motor comprising a motor housing (1), characterized in that: the front movable mounting of motor housing (1) has door plant (10), and the inside fixed mounting of motor housing (1) has motor main part (21), the top welding of door plant (10) has two fixed plates (13), and the front fixed mounting of door plant (10) has handle (12) that are located between two fixed plates (13), the outside screw thread of fixed plate (13) has cup jointed fastening bolt (14), the back and the top of motor housing (1) are fixed mounting respectively has refrigerator (4) and oil tank (5), and the fixed cover in top of motor housing (1) has cold air mouth (2) that are located oil tank (5) right side, fixedly connected with evenly distributed's cold air pipeline (3) between refrigerator (4) and cold air mouth (2), the inside fixed cover of motor housing (1) has spray base (20) that are located oil tank (5) left, the end of base (20) extends to the outside of motor housing (1) and fixedly connected with oil pipe (6) between oil tank (5), and the bottom fixed cover that sprays base (20) has refrigerator (2) respectively, the inside fixed cover (19) that are located motor housing (1) is located motor housing (1) and bottom side (2) is located the side of controlling the side of the air conditioner (9), the motor is characterized in that a transmission shaft (8) is fixedly sleeved at the output end of the motor main body (21), an oil suction plate (16) positioned below the transmission shaft (8) is movably sleeved in the motor shell (1), a limiting plate (17) is fixedly connected to the bottom of the oil suction plate (16), and a pull ring (15) is fixedly installed at the bottom of the limiting plate (17).
2. A low noise high voltage motor according to claim 1, wherein: the motor is characterized in that four evenly distributed damping bases (11) are fixedly arranged at the bottom of the motor shell (1), and the height value of each damping base (11) is larger than that of each limiting plate (17) and each oil suction plate (16).
3. A low noise high voltage motor according to claim 1, wherein: the bottom ends of the two spray heads (19) incline towards the middle part, and the two spray heads (19) are positioned above the transmission shaft (8).
4. A low noise high voltage motor according to claim 1, wherein: the motor is characterized in that a through groove matched with the oil suction plate (16) is formed in the bottom of the motor shell (1), a magnet is fixedly arranged outside the limiting plate (17), and a groove matched with the magnet is formed in the bottom of the motor shell (1).
5. A low noise high voltage motor according to claim 1, wherein: the tail end of the cold air port (2) extends to the inside of the motor shell (1), and the inside of the cold air port (2) is fixedly sleeved with a partition plate which is uniformly distributed.
6. A low noise high voltage motor according to claim 1, wherein: the left end of the transmission shaft (8) extends to the outside of the motor shell (1), and an oil slinger (7) is fixedly sleeved between the transmission shaft (8) and the motor shell (1).
7. A low noise high voltage motor according to claim 1, wherein: the left side of the motor shell (1) is fixedly provided with a speed controller (9), and the speed controller (9) is movably sleeved outside the transmission shaft (8).
8. A low noise high voltage motor according to claim 1, wherein: the inside of the door plate (10) is fixedly provided with a sound insulation plate (18), and the inside of the motor shell (1) is fixedly provided with the sound insulation plate (18) positioned at the bottom and the rear of the motor main body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386882.XA CN112865402B (en) | 2021-04-12 | 2021-04-12 | Low-noise high-voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386882.XA CN112865402B (en) | 2021-04-12 | 2021-04-12 | Low-noise high-voltage motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112865402A CN112865402A (en) | 2021-05-28 |
| CN112865402B true CN112865402B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110386882.XA Active CN112865402B (en) | 2021-04-12 | 2021-04-12 | Low-noise high-voltage motor |
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| Country | Link |
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| CN (1) | CN112865402B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401728A (en) * | 2001-08-13 | 2003-03-12 | 新Qu能源有限公司 | Device using high velocity heat transfer medium |
| CN107859620A (en) * | 2017-10-31 | 2018-03-30 | 北京精密机电控制设备研究所 | A kind of high-pressure low-noise servomotor pump based on double shaft servomotors |
| CN210468999U (en) * | 2019-08-30 | 2020-05-05 | 郑州奥尔威科技有限公司 | Dustproof motor support |
| CN210867341U (en) * | 2019-12-31 | 2020-06-26 | 江苏金双利动力机械有限公司 | Low-noise high-voltage generator set |
| JP2020137389A (en) * | 2019-02-26 | 2020-08-31 | 株式会社日立インダストリアルプロダクツ | Rotary electric machine |
-
2021
- 2021-04-12 CN CN202110386882.XA patent/CN112865402B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401728A (en) * | 2001-08-13 | 2003-03-12 | 新Qu能源有限公司 | Device using high velocity heat transfer medium |
| CN107859620A (en) * | 2017-10-31 | 2018-03-30 | 北京精密机电控制设备研究所 | A kind of high-pressure low-noise servomotor pump based on double shaft servomotors |
| JP2020137389A (en) * | 2019-02-26 | 2020-08-31 | 株式会社日立インダストリアルプロダクツ | Rotary electric machine |
| CN210468999U (en) * | 2019-08-30 | 2020-05-05 | 郑州奥尔威科技有限公司 | Dustproof motor support |
| CN210867341U (en) * | 2019-12-31 | 2020-06-26 | 江苏金双利动力机械有限公司 | Low-noise high-voltage generator set |
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| Publication number | Publication date |
|---|---|
| CN112865402A (en) | 2021-05-28 |
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Denomination of invention: A Low Noise High Voltage Motor Granted publication date: 20230804 Pledgee: Jiangsu Jinhu Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU JIARUIFENG ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2024980016422 |