CN114421710B - Dry vacuum pump cooling system - Google Patents
Dry vacuum pump cooling system Download PDFInfo
- Publication number
- CN114421710B CN114421710B CN202111619190.1A CN202111619190A CN114421710B CN 114421710 B CN114421710 B CN 114421710B CN 202111619190 A CN202111619190 A CN 202111619190A CN 114421710 B CN114421710 B CN 114421710B
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- China
- Prior art keywords
- heat dissipation
- wall
- gear
- vacuum pump
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 title abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 241000883990 Flabellum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
- B01D46/0056—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with rotational movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a dry vacuum pump heat dissipation system, which relates to the technical field of vacuum pumps and comprises a motor of a vacuum pump, wherein heat dissipation fins are arranged on the outer wall of the motor, a main shaft is arranged at the central shaft position of each heat dissipation fin, a heat dissipation assembly is arranged on the outer wall of the motor, a protective shell is arranged at the tail part of the motor, and a fan blade assembly and a filter screen assembly are arranged in the protective shell. This dry vacuum pump cooling system drives through the cam rotation and presses the depression bar rotation, makes and drives the brush-holder stud and reciprocate according to depression bar cooperation second spring, and then drives the brush swing, better cleans the filter screen surface.
Description
Technical Field
The invention relates to the technical field of vacuum pumps, in particular to a dry vacuum pump heat dissipation system.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. In general, a vacuum pump is a device for improving, generating and maintaining a vacuum in a certain closed space by various methods.
The vacuum pump can produce a large amount of heats at the during operation motor, and too high heat can influence the life of motor, and ordinary motor can install flabellum and safety cover at the afterbody, but the safety cover only has latticed gas pocket, and the safety cover surface can the scale deposit in long-time use, influences normal air inlet.
Disclosure of Invention
The invention aims to: in order to solve the above problems, a dry vacuum pump heat dissipation system is proposed.
In order to achieve the purpose, the heat dissipation system of the dry vacuum pump adopts the following technical scheme: the fan comprises a motor of a vacuum pump, wherein radiating fins are arranged on the outer wall of the motor, a main shaft is arranged at the position of a central shaft of the motor, a radiating assembly is arranged on the outer wall of the motor, a protective shell is arranged at the tail part of the motor, and a fan blade assembly and a filter screen assembly are arranged in the protective shell;
the filter screen assembly comprises a driving gear set matched with the fan blade assembly, the upper end of the driving gear set is connected with a third gear in a meshed mode, a connecting shaft is installed at the central shaft position of the third gear, a cam is installed at one end, away from the third gear, of the connecting shaft, a pressing rod is arranged at the lower end of the cam, a brush rod is installed at the lower end of the pressing rod, the upper end and the lower end of the brush rod are respectively connected with a protective shell in a sliding mode, a first spring is arranged between the protective shell and the brush rod, a second spring is arranged at the lower end of the brush rod, and a brush is arranged on the outer wall of the brush rod;
a first mounting frame matched with the driving gear set is arranged on one side of the driving gear set, a filter screen is mounted in the first mounting frame, and the first mounting frame is rotatably connected with the protective shell;
the drive gear group comprises a first gear, the center shaft position of the first gear is provided with a rotating shaft, one end of the rotating shaft, far away from the first gear, is provided with a second gear, the outer wall of one side of the second gear is provided with an installation block, the outer wall of the installation block is provided with teeth matched with the first installation frame to use, and the inner ring inner side surface of the first installation frame is provided with tooth grooves matched with the teeth to use.
Further, the heat dissipation assembly comprises a gas diffusion pipe, one end of the protective shell is provided with a positioning hole matched with the gas diffusion pipe for use, the positioning hole is communicated with the inside of the protective shell, two ends of the gas diffusion pipe are respectively provided with a first mounting ring, the outer wall of the gas diffusion pipe is provided with a plurality of groups of exhaust holes, one end, close to the protective shell, of the gas diffusion pipe is provided with a limiting ring and a sealing ring, the outer wall of one end of the gas diffusion pipe is provided with an external thread section up and down, and the positioning hole is provided with an internal thread section matched with the external thread section.
Furthermore, the fan blade assembly comprises fan blades arranged on the outer wall of the tail portion of the main shaft, a second mounting ring is fixedly arranged at the tail end of each fan blade, and a tooth socket matched with the first gear for use is formed in the surface of an inner ring of the second mounting ring.
Further, the surface of the radiating fin is provided with a heat conducting fin for increasing the radiating area.
Further, a dust collecting shell is installed at the upper end of the protective shell, a groove is formed in the lower end of the dust collecting shell, the dust collecting shell is installed at the upper end of the outer wall of the protective shell through a bolt, the brush rod is located inside the protective shell and is in sliding connection with the brush rod, dustproof cloth is arranged at the edge of the protective shell, and the second spring is in contact with the bottom of the dust collecting shell.
Compared with the prior art, the invention has the following beneficial effects:
this dry vacuum pump cooling system drives through the cam rotation and presses the depression bar rotation, makes and drives the brush-holder stud and reciprocate according to depression bar cooperation second spring, and then drives the brush swing, better cleans the filter screen surface.
Drawings
Fig. 1 is a schematic view of an overall structure of a motor of a heat dissipation system of a dry vacuum pump according to the present invention;
FIG. 2 is an enlarged view of a portion A of a heat dissipation system of a dry vacuum pump according to the present invention;
fig. 3 is a schematic structural diagram of a driving gear set of a heat dissipation system of a dry vacuum pump according to the present invention;
FIG. 4 is a schematic structural diagram of a dust collecting housing of a heat dissipating system of a dry vacuum pump according to the present invention;
FIG. 5 is a schematic view illustrating an installation of a heat-conducting fin of a heat-dissipating system of a dry vacuum pump according to the present invention;
fig. 6 is a schematic structural diagram of an air diffusing pipe of a heat dissipation system of a dry vacuum pump according to the present invention;
fig. 7 is a schematic diagram of the distribution of the air diffusing pipes of the heat dissipation system of the dry vacuum pump according to the present invention.
In the figure: 1. a motor; 101. a heat sink; 1011. a heat conductive sheet; 102. a main shaft; 2. a heat dissipating component; 201. a gas dispersing pipe; 2011. an exhaust hole; 2012. a limiting ring; 2013. a seal ring; 2014. an external threaded section; 202. a first mounting ring; 3. a fan blade assembly; 301. a second mounting ring; 302. a fan blade; 4. a protective shell; 402. a dust collecting case; 5. a screen assembly; 501. a drive gear set; 5011. a first gear; 5012. a rotating shaft; 5013. a second gear; 5014. mounting blocks; 5015. teeth; 502. a third gear; 503. a cam; 504. a pressing lever; 505. a brush bar; 506. a brush; 507. a first mounting frame; 508. filtering with a screen; 509. a second spring.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-7, a dry vacuum pump heat dissipation system comprises a motor 1 of a vacuum pump, wherein a heat dissipation fin 101 is arranged on the outer wall of the motor 1, a main shaft 102 is arranged at the central shaft position of the motor 1, a heat dissipation assembly 2 is arranged on the outer wall of the motor 1, a protective shell 4 is arranged at the tail part of the motor 1, and a fan blade assembly 3 and a filter screen assembly 5 are arranged inside the protective shell 4;
the filter screen assembly 5 comprises a driving gear set 501 matched with the fan blade assembly 3 for use, the upper end of the driving gear set 501 is connected with a third gear 502 in a meshing manner, a connecting shaft is mounted at the central axis position of the third gear 502, a cam 503 is mounted at one end, away from the third gear 502, of the connecting shaft, the lower end of the cam 503 is provided with a pressing rod 504, a brush rod 505 is mounted at the lower end of the pressing rod 504, the upper end and the lower end of the brush rod 505 are respectively connected with a protective shell 4 in a sliding manner, a first spring is arranged between the protective shell 4 and the brush rod 505, the lower end of the brush rod 505 is provided with a second spring 509, and the outer wall of the brush rod 505 is provided with a brush 506;
a first mounting frame 507 matched with the drive gear set 501 is arranged on one side of the drive gear set 501, a filter screen 508 is mounted inside the first mounting frame 507, and the first mounting frame 507 is rotatably connected with the protective shell 4;
the driving gear set 501 comprises a first gear 5011, a rotating shaft 5012 is arranged at the central shaft position of the first gear 5011, a second gear 5013 is arranged at one end, far away from the first gear 5011, of the rotating shaft 5012, an installation block 5014 is arranged on the outer wall of one side of the second gear 5013, teeth 5015 matched with the first installation frame 507 are arranged on the outer wall of the installation block 5014, and tooth grooves matched with the teeth 5015 are formed in the inner side surface of an inner ring of the first installation frame 507; the teeth 5015 are made of flexible materials, and damage to the teeth 5015 due to the fact that the teeth 5015 are dislocated with tooth grooves in the surface of the first mounting frame 507 is avoided.
Further, the heat dissipation assembly 2 includes the air diffusing pipe 201, a positioning hole matched with the air diffusing pipe 201 for use is formed in one end of the protective shell 4, the positioning hole is communicated with the inside of the protective shell 4, the two ends of the air diffusing pipe 201 are respectively provided with the first mounting ring 202, a plurality of groups of exhaust holes 2011 are formed in the outer wall of the air diffusing pipe 201, one end, close to the protective shell 4, of the air diffusing pipe 201 is provided with the limit ring 2012 and the sealing ring 2013, the outer wall of one end of the upper air diffusing pipe 201 and the outer wall of one end of the lower air diffusing pipe 201 are provided with the outer thread section 2014, and the corresponding positioning hole is provided with the inner thread section matched with the outer thread section 2014.
Further, fan blade assembly 3 includes fan blades 302 mounted on the outer wall of the tail portion of main shaft 102, a second mounting ring 301 is fixedly disposed at the end of fan blades 302, and a tooth slot used in cooperation with first gear 5011 is formed in the inner ring surface of second mounting ring 301.
Further, the surface of the heat sink 101 is provided with a heat conductive sheet 1011 that increases the heat dissipation area.
Further, collection dirt shell 402 is installed to the upper end of protective housing 4, the lower extreme of collection dirt shell 402 is seted up flutedly, collection dirt shell 402 passes through the bolt and installs in 4 outer wall upper ends of protective housing, brush-holder stud 505 is located protective housing 4 inside and sliding connection with it, 4 edges of protective housing set up dustproof cloth, second spring 509 and the contact of collection dirt shell 402 bottom, through the blockking of collection dirt shell 402, reduce the inside air flow of collection dirt shell 402, thereby make the better entering of dust be fluted in, make things convenient for staff's collection.
The working principle is as follows: when the motor 1 works, the tail of the main shaft 102 of the motor 1 rotates through the second mounting ring 301 of the fan blade 302, the second mounting ring 301 drives the first gear 5011 to rotate, the first gear 5011 drives the second gear 5013 to rotate through the rotating shaft 5012, the second gear 5013 drives the third gear 502 to rotate, the third gear 502 drives the cam 503 to rotate through the connecting shaft, the cam 503 drives the brush rod 505 to move downwards through the pressing rod 504, and meanwhile, the brush rod 505 is reset upwards through matching with the second spring 509, so that the brush rod 505 reciprocates, the brush 506 is driven to swing, and the surface of the filter screen 508 is better cleaned;
meanwhile, the second gear 5013 drives the mounting block 5014 to rotate, the mounting block 5014 drives the teeth 5015 to move, the teeth 5015 drives the first mounting frame 507 to rotate, and the first mounting frame 507 drives the filter screen 508 to rotate, so that the brush 506 can clean different positions of the filter screen 508.
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 able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (4)
1. A dry vacuum pump heat dissipation system comprises a motor (1) of a vacuum pump, wherein heat dissipation fins (101) are arranged on the outer wall of the motor (1), and a main shaft (102) is arranged at the position of a central shaft of the motor (1), and is characterized in that a heat dissipation assembly (2) is installed on the outer wall of the motor (1), a protective shell (4) is installed at the tail of the motor (1), and a fan blade assembly (3) and a filter screen assembly (5) are arranged inside the protective shell (4);
the filter screen assembly (5) comprises a driving gear set (501) matched with the fan blade assembly (3) for use, the upper end of the driving gear set (501) is connected with a third gear (502) in a meshed mode, a connecting shaft is installed at the position of a central shaft of the third gear (502), a cam (503) is installed at one end, away from the third gear (502), of the connecting shaft, a pressing rod (504) is arranged at the lower end of the cam (503), a brush rod (505) is installed at the lower end of the pressing rod (504), the upper end and the lower end of the brush rod (505) are respectively in sliding connection with a protective shell (4), a first spring is arranged between the protective shell (4) and the brush rod (505), a second spring (509) is arranged at the lower end of the brush rod (505), and a brush (506) is arranged on the outer wall of the brush rod (505);
a first mounting frame (507) matched with the driving gear set (501) is arranged on the end face of the driving gear set (501), a filter screen (508) is mounted inside the first mounting frame (507), and the first mounting frame (507) is rotatably connected with a protective shell (4);
the driving gear set (501) comprises a first gear (5011), a rotating shaft (5012) is arranged at the central shaft position of the first gear (5011), a second gear (5013) is installed at one end, far away from the first gear (5011), of the rotating shaft (5012), an installation block (5014) is arranged on the outer wall of one side of the second gear (5013), teeth (5015) used for being matched with a first installation frame (507) are arranged on the outer wall of the installation block (5014), and tooth grooves used for being matched with the teeth (5015) are formed in the inner side surface of an inner ring of the first installation frame (507);
the fan blade assembly (3) comprises fan blades (302) arranged on the outer wall of the tail portion of the main shaft (102), a second mounting ring (301) is fixedly arranged at the tail end of each fan blade (302), and a tooth groove matched with the first gear (5011) for use is formed in the surface of the inner ring of the second mounting ring (301).
2. The heat dissipation system of the dry vacuum pump as claimed in claim 1, wherein the heat dissipation assembly (2) includes an air dissipation pipe (201), one end of the protective casing (4) is provided with a positioning hole for matching with the air dissipation pipe (201), the positioning hole is communicated with the inside of the protective casing (4), two ends of the air dissipation pipe (201) are respectively provided with a first mounting ring (202), the outer wall of the air dissipation pipe (201) is provided with a plurality of groups of exhaust holes (2011), one end of the air dissipation pipe (201) close to the protective casing (4) is provided with a limiting ring (2012) and a sealing ring (2013), wherein the outer wall of one end of the air dissipation pipe (201) is provided with an external thread section (2014) up and down, and the corresponding positioning hole is provided with an internal thread section matching with the external thread section (2014).
3. The heat dissipation system for a dry vacuum pump according to claim 1, wherein the surface of the heat dissipation fin (101) is provided with a heat conduction fin (1011) that increases a heat dissipation area.
4. The heat dissipation system of a dry vacuum pump as claimed in claim 1, wherein a dust collection shell (402) is installed at the upper end of the protection shell (4), a groove is formed at the lower end of the dust collection shell (402), the dust collection shell (402) is installed at the upper end of the outer wall of the protection shell (4) through a bolt, the brush rod (505) is located inside the protection shell (4) and slidably connected with the protection shell, a dust cloth is arranged at the edge of the protection shell (4), and the second spring (509) is in contact with the bottom of the dust collection shell (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619190.1A CN114421710B (en) | 2021-12-28 | 2021-12-28 | Dry vacuum pump cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619190.1A CN114421710B (en) | 2021-12-28 | 2021-12-28 | Dry vacuum pump cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114421710A CN114421710A (en) | 2022-04-29 |
| CN114421710B true CN114421710B (en) | 2022-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111619190.1A Active CN114421710B (en) | 2021-12-28 | 2021-12-28 | Dry vacuum pump cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114421710B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001216A (en) * | 2022-07-26 | 2022-09-02 | 通域科技(深圳)有限公司 | Permanent magnet motor special for integrated hydraulic pump |
| CN116207923A (en) * | 2023-01-13 | 2023-06-02 | 浙江江宇电机有限公司 | Motor with directional heat dissipation mechanism |
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| CN209844761U (en) * | 2019-07-08 | 2019-12-24 | 连云港锐宝电机有限公司 | Motor with good heat dissipation effect |
| CN112202283A (en) * | 2020-10-13 | 2021-01-08 | 侯江伟 | Driving device for drilling fluid circulating rotation |
| CN112653291A (en) * | 2020-11-18 | 2021-04-13 | 江苏航天动力机电有限公司 | Permanent magnet motor adopting new structure |
| CN213027720U (en) * | 2020-07-06 | 2021-04-20 | 合肥旭弘塑胶制品有限公司 | Rapid cooling mechanism of motor rotor |
| CN112739155A (en) * | 2020-12-10 | 2021-04-30 | 尹佑军 | Efficient 5G base station heat dissipation system and heat dissipation method |
| CN213843989U (en) * | 2020-12-22 | 2021-07-30 | 郑州恒吉信息技术有限公司 | Server case |
| CN214626700U (en) * | 2020-11-18 | 2021-11-05 | 江苏航天动力机电有限公司 | A permanent magnet motor with new structure |
| CN215009946U (en) * | 2021-06-09 | 2021-12-03 | 南京溧水丰盛机电制造有限公司 | Energy-saving plastic fan for explosion-proof motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3711877B2 (en) * | 2001-03-02 | 2005-11-02 | 日立工機株式会社 | Electric tool |
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2021
- 2021-12-28 CN CN202111619190.1A patent/CN114421710B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390509A (en) * | 2018-02-06 | 2018-08-10 | 深圳市奈士迪技术研发有限公司 | A kind of New energy automobile motor convenient for heat dissipation with moisture-proof function |
| CN209844761U (en) * | 2019-07-08 | 2019-12-24 | 连云港锐宝电机有限公司 | Motor with good heat dissipation effect |
| CN213027720U (en) * | 2020-07-06 | 2021-04-20 | 合肥旭弘塑胶制品有限公司 | Rapid cooling mechanism of motor rotor |
| CN112202283A (en) * | 2020-10-13 | 2021-01-08 | 侯江伟 | Driving device for drilling fluid circulating rotation |
| CN112653291A (en) * | 2020-11-18 | 2021-04-13 | 江苏航天动力机电有限公司 | Permanent magnet motor adopting new structure |
| CN214626700U (en) * | 2020-11-18 | 2021-11-05 | 江苏航天动力机电有限公司 | A permanent magnet motor with new structure |
| CN112739155A (en) * | 2020-12-10 | 2021-04-30 | 尹佑军 | Efficient 5G base station heat dissipation system and heat dissipation method |
| CN213843989U (en) * | 2020-12-22 | 2021-07-30 | 郑州恒吉信息技术有限公司 | Server case |
| CN215009946U (en) * | 2021-06-09 | 2021-12-03 | 南京溧水丰盛机电制造有限公司 | Energy-saving plastic fan for explosion-proof motor |
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| CN114421710A (en) | 2022-04-29 |
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