CN220706053U - Magnetic suspension blower head with heat radiation structure and thrust rear-mounted - Google Patents
Magnetic suspension blower head with heat radiation structure and thrust rear-mounted Download PDFInfo
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- CN220706053U CN220706053U CN202322378936.5U CN202322378936U CN220706053U CN 220706053 U CN220706053 U CN 220706053U CN 202322378936 U CN202322378936 U CN 202322378936U CN 220706053 U CN220706053 U CN 220706053U
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- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 230000005855 radiation Effects 0.000 title claims description 17
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000005339 levitation Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 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
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of magnetic suspension blowers, in particular to a magnetic suspension blower head with a heat dissipation structure and a rear thrust. The machine head is internally provided with a gas passage, and the gas passage comprises a first passage for heat dissipation of the large impeller and a second passage for heat dissipation of the small impeller; the second passageway includes second air inlet channel, fourth passageway, fifth passageway and stator passageway, the second air inlet channel is located in the impeller cap and is linked together in the rear end air intake, stator passageway axial is located between stator and the rotor and its left end communicates in the air-out passageway, fourth passageway axial sets up on rear end bearing frame and rear end flange, and its both ends are linked together respectively in stator passageway and second air inlet passageway about, the fifth passageway is located between rear radial magnetic bearing and the rotor, and its both ends are linked together respectively in stator passageway and fourth passageway about. The second passage can better and more comprehensively dissipate heat for the thrust bearing.
Description
Technical Field
The utility model relates to the technical field of magnetic suspension blowers, in particular to a magnetic suspension blower head with a heat dissipation structure and a rear thrust.
Background
The magnetic suspension blower is one kind of turbine equipment with magnetic suspension bearing. The main structure is that the blower impeller is directly installed on the motor shaft extension end, and the rotor is vertically suspended on the active magnetic bearing, so that the single-machine high-speed centrifugal blower which is directly driven by the high-speed motor and is regulated by the frequency converter is realized. The fan adopts an integrated design, has the technical characteristics of energy conservation, high efficiency, high cooling efficiency, low noise and the like, and is widely applied to factories at present.
The operation of the magnetic suspension motor can generate heat, and the temperature rise problem of the high-power magnetic suspension motor is more serious, if a proper heat dissipation system is not adopted in the operation process of the motor, the temperature of a winding is too high, and a permanent magnet on a rotor can generate demagnetization phenomenon to influence the normal use of the magnetic suspension motor.
Chinese patent (publication No. CN116526753a; publication No. 2023.08.01) discloses a magnetic levitation motor and magnetic levitation blower with a composite heat dissipation mode, which can dissipate heat not only for radial magnetic bearings at front and rear ends but also for axial magnetic bearings (thrust bearings) at rear ends, but is difficult to dissipate heat between a rotor and an axial magnetic shaft.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a magnetic suspension blower head with a heat radiation structure and a rear thrust, wherein the heat radiation structure can well radiate heat for a thrust bearing.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the magnetic suspension blower head with the heat radiation structure and the rear thrust comprises a shell, a motor assembly, a large impeller, a small impeller and a gas passage, wherein the motor assembly and the gas passage are arranged in the shell, and the large impeller and the small impeller are respectively arranged at the left end and the right end of the shell;
the shell comprises a motor shell, a front end bearing seat, a rear end bearing seat, a front end flange, a rear end flange and an impeller cover, wherein the front end bearing seat and the rear end bearing seat are respectively arranged on the left end face and the right end face of the motor shell, the front end flange is arranged at the left end of the front end bearing seat, and the rear end flange and the impeller cover are sequentially arranged at the right end of the rear end bearing seat; wherein, the impeller cover is provided with a rear end air inlet, and the motor shell is provided with an air outlet;
the motor assembly comprises a rotor, a stator, a front radial magnetic bearing and a rear radial magnetic bearing, wherein the rotor is axially erected inside the shell, the stator is sleeved in the middle of the rotor, and the front radial magnetic bearing and the rear radial magnetic bearing are both arranged on the rotor and are respectively positioned at the left side and the right side of the stator;
the large impeller is arranged at the left end of the rotor and is arranged at the left side of the front end flange, and the small impeller is arranged at the right end of the rotor and is arranged at the right side of the rear end flange and is positioned in the impeller cover;
the gas passage comprises a first passage for heat dissipation of the large impeller and a second passage for heat dissipation of the small impeller; the first passage comprises a first air inlet passage, a second passage, a third passage and an air outlet passage, the first air inlet passage is arranged between the large impeller and the front end flange, the second passage is arranged on the front end bearing seat, the third passage is arranged between the front radial magnetic bearing and the rotor, the air outlet passage is arranged between the front radial magnetic bearing and the stator and is communicated with the air outlet, and the left end and the right end of the second passage and the left end of the third passage are both communicated with the first air inlet passage and the air outlet passage;
the second passageway includes second air inlet channel, fourth passageway, fifth passageway and stator passageway, the second air inlet channel is located in the impeller cap and is linked together in the rear end air intake, stator passageway axial is located between stator and the rotor and its left end communicates in the air-out passageway, fourth passageway axial sets up on rear end bearing frame and rear end flange, and its both ends are linked together respectively in stator passageway and second air inlet passageway about, the fifth passageway is located between rear radial magnetic bearing and the rotor, and its both ends are linked together respectively in stator passageway and fourth passageway about.
Preferably, the rotor is also sleeved with a thrust bearing positioned on the right side of the rear radial magnetic bearing, a first gap is arranged between the thrust bearing and the rear radial magnetic bearing, and the right end of the fifth channel is communicated with the fourth channel through the first gap; preferably, the thrust bearing is provided with a clearance cylinder.
Preferably, the rotor is also sleeved with a protective bearing flange and a back flange, the back flange is positioned at the left side of the small impeller, and the protective bearing flange is positioned at the left side of the back flange; wherein the outer diameter of the back flange is smaller than the outer diameter of the protective bearing flange.
Preferably, a second gap communicated with the fourth channel is arranged between the protective bearing flange and the thrust bearing.
Preferably, the second passage further includes a sixth passage for dissipating heat from the thrust bearing, the left end of which communicates with the fourth passage, the right end of which communicates with the second gap, and the sixth passage is provided on the thrust bearing and the gap cylinder.
Preferably, a thrust transfer ring is clamped between the thrust bearing and the rear radial magnetic bearing, and the thrust transfer ring is arranged in a vertical gap communicated with the fourth channel and the fifth channel.
Preferably, a seventh channel communicated with the second air inlet channel is arranged between the back flange and the small impeller, an eighth channel is arranged in the protective bearing flange and the back flange, a ninth channel is arranged between the protective bearing flange and the rotor, and the left end and the right end of the eighth channel and the left end of the ninth channel are respectively communicated with the second gap and the seventh channel.
Preferably, the air outlet of the motor shell is sleeved with the heat dissipation air cover.
Preferably, a fan housing outlet is arranged on the heat dissipation fan housing.
Preferably, a water trough for cooling liquid, a water inlet and a water outlet communicated with the water trough are arranged in the motor shell.
In summary, the utility model has the following advantages:
the front radial magnetic bearing can be effectively radiated through the first passage, the radiation of the front radial magnetic bearing comprises the heat of the front radial magnetic bearing and the heat between the front radial magnetic bearing and the rotor, and the radiation of the rear radial magnetic bearing can be effectively radiated through the second passage, and the radiation of the rear radial magnetic bearing comprises the heat of the rear radial magnetic bearing and the heat between the rear radial magnetic bearing and the rotor; the first gap and the second gap are arranged on the left side and the right side of the thrust bearing, and therefore heat dissipation of the thrust bearing can be better achieved.
Drawings
FIG. 1 is a schematic diagram of a magnetic levitation blower head;
FIG. 2 is a schematic cross-sectional view of a magnetic levitation blower head;
FIG. 3 is a schematic view of the structure of the gas passage;
FIG. 4 is a schematic diagram of a motor housing;
FIG. 5 is a second schematic diagram of the motor housing;
reference numerals: 1. a housing; 3. a large impeller; 4. a small impeller; 6. a heat dissipation fan cover; 7. a water trough; 8. a water inlet; 9. a water outlet; 11. a motor housing; 12. a front end bearing seat; 13. a rear end bearing seat; 14. a front end flange; 15. a rear end flange; 16. an impeller cover; 17. a rear air inlet; 18. an air outlet; 21. a rotor; 22. a stator; 23. a front radial magnetic bearing; 24. a rear radial magnetic bearing; 25. a thrust bearing; 26. protecting a bearing flange; 27. a back flange; 28. a first gap; 29. a second gap; 61. a fan housing outlet; 510. a first air inlet channel; 511. a second channel; 512. a third channel; 513. an air outlet channel; 520. a second air inlet channel; 521. a fourth channel; 522. a fifth channel; 523. a stator channel; 531. a gap cylinder; 532. a sixth channel; 533. a seventh channel; 534. an eighth channel; 535. a ninth channel; 540. a thrust adapter ring; 541. vertical clearance.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
At the same time, it should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The following describes the embodiments of the present utility model in detail with reference to the drawings.
As shown in fig. 1 to 5, a magnetic suspension blower head with a heat dissipation structure and a rear thrust is provided, wherein the head comprises a housing 1, a motor assembly, a large impeller 3, a small impeller 4 and a gas passage, wherein the motor assembly and the gas passage are arranged in the housing 1, and the large impeller 3 and the small impeller 4 are respectively arranged at the left end and the right end of the housing 1.
As shown in fig. 1 to 2, the casing 1 includes a motor housing 11, a front end bearing seat 12, a rear end bearing seat 13, a front end flange 14, a rear end flange 15 and an impeller cover 16, the front end bearing seat 12 and the rear end bearing seat 13 are respectively arranged on left and right end surfaces of the motor housing 11, the front end flange 14 is arranged on the left end of the front end bearing seat 12, and the rear end flange 15 and the impeller cover 16 are sequentially arranged on the right end of the rear end bearing seat 13; wherein, the impeller cover 16 is provided with a rear end air inlet 17, and the motor housing 11 is provided with an air outlet 18.
As shown in fig. 2, the motor assembly includes a rotor 21, a stator 22, a front radial magnetic bearing 23 and a rear radial magnetic bearing 24, wherein the rotor 21 is axially erected inside the housing 1, the stator 22 is sleeved in the middle of the rotor 21, and the front radial magnetic bearing 23 and the rear radial magnetic bearing 24 are both arranged on the rotor 21 and are respectively positioned on the left side and the right side of the stator 22. The large impeller 3 is mounted on the left end of the rotor 21 and on the left side of the front flange 14, and the small impeller 4 is mounted on the right end of the rotor 21 and on the right side of the rear flange 15 and in the impeller cover 16.
As shown in fig. 2 and 3, the gas passage includes a first passage for heat dissipation of the large impeller 3 and a second passage for heat dissipation of the small impeller 4; the first passageway includes first air inlet channel 510, second passageway 511, third passageway 512 and air outlet channel 513, and first air inlet channel 510 is located between big impeller 3 and front end flange 14, and second passageway 511 is located on the front end bearing frame 12, and third passageway 512 is located between radial magnetic bearing 23 and the rotor 21 before, and air outlet channel 513 is located between radial magnetic bearing 23 and the stator 22 before and communicates to air outlet 18, and wherein both ends all communicate in first air inlet channel 510 and air outlet channel 513 about second passageway 511 and third passageway 512. The air flows from the large impeller 3 into the first air inlet channel 510, is split into the second channel 511 and the third channel 512, and finally flows into the air outlet channel 513, and can cool the front radial magnetic bearing 23 more comprehensively through the channel.
The second passage includes a second air inlet channel 520, a fourth channel 521, a fifth channel 522 and a stator channel 523, the second air inlet channel 520 is disposed in the impeller cover 16 and is communicated with the rear air inlet 17, the stator channel 523 is axially disposed between the stator 22 and the rotor 21 and is communicated with the air outlet channel 513 at the left end, the fourth channel 521 is axially disposed on the rear bearing seat 13 and the rear flange 15 and is respectively communicated with the stator channel 523 and the second air inlet channel 520 at the left and right ends, the fifth channel 522 is disposed between the rear radial magnetic bearing 24 and the rotor 21 and is respectively communicated with the stator channel 523 and the fourth channel 521 at the left and right ends. The air flows from the rear air inlet 17 into the second air inlet channel 520, flows through the fourth channel 521 and the fifth channel 522 to dissipate heat for the rear radial magnetic bearing 24, and finally flows into the air outlet channel 513.
Since the magnetic suspension blower head in this patent is a blower with a rear thrust, the rotor 21 is further sleeved with a thrust bearing 25 positioned on the right side of the rear radial magnetic bearing 24, and a protection bearing flange 26 and a back flange 27 for protecting the thrust bearing 25. Wherein, a first gap 28 is arranged between the thrust bearing 25 and the rear radial magnetic bearing 24, a second gap 29 is arranged between the thrust bearing 25 and the protective bearing flange 26, a gap cylinder 531 and a sixth channel 532 for heat dissipation are arranged on the thrust bearing 25, and the left and right ends of the sixth channel 532 are communicated with the fourth channel 521 and the second gap 29; this arrangement allows better and more complete heat dissipation for the thrust bearing 25.
Wherein, back flange 27 locates the left side of impeller 4, and protection bearing flange 26 fixed connection is in the left side of back flange 27, is equipped with seventh passageway 533 between back flange 27 and impeller 4, is equipped with eighth passageway 534 in protection bearing flange 26 and back flange 27, is equipped with ninth passageway 535 between protection bearing flange 26 and back flange 27 and rotor 21, and the both ends are linked together in second clearance 29 and seventh passageway 533 about eighth passageway 534 and ninth passageway 535 respectively. Wherein the back flange 27 is provided in order to reduce the space of the fourth passage in order to raise the wind pressure. While the outer diameter of the protective bearing flange 26 is larger than the back flange 27 so that when the fourth channel 521 is provided, it passes axially through the protective bearing flange 26.
As shown in fig. 2 and 3, the first gap 28 is provided with a thrust adapter ring 540, the thrust adapter ring 540 is configured to protect the rear radial magnetic bearing 24 and the thrust bearing 25, the thrust adapter ring 540 is sandwiched between the thrust bearing 25 and the rear radial magnetic bearing 24, and the thrust adapter ring 540 is provided with a vertical gap 541 that communicates the fourth channel 521 and the fifth channel 522, for heat dissipation.
As shown in fig. 1 to 5, for better heat dissipation, a plurality of air outlets 18 are uniformly circumferentially distributed on the motor housing 11, the heat dissipation air cover 6 is sleeved on the air outlets 18 of the motor housing 11, and a water running groove 7 for cooling liquid and a water inlet 8 and a water outlet 9 which are communicated with the water running groove 7 are arranged in the motor housing 11. Wherein, the heat dissipation fan housing 6 is provided with a fan housing outlet 61 for discharging air.
The first passage can effectively radiate heat for the front radial magnetic bearing 23, wherein the heat radiation comprises the heat of the front radial magnetic bearing 23 and the heat between the front radial magnetic bearing 23 and the rotor 21, and the second passage can effectively radiate heat for the rear radial magnetic bearing 24, and the heat radiation comprises the heat of the rear radial magnetic bearing 24 and the heat between the rear radial magnetic bearing 24 and the rotor 21; the first gap 28 and the second gap 29 are provided on both the left and right sides of the thrust bearing 25, so that the thrust bearing 25 can be cooled more effectively.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. The magnetic suspension blower head with the heat radiation structure and the rear thrust is characterized by comprising a shell (1), a motor assembly, a large impeller (3), a small impeller (4) and a gas passage, wherein the motor assembly and the gas passage are arranged in the shell (1), and the large impeller (3) and the small impeller (4) are respectively arranged at the left end and the right end of the shell (1);
the shell (1) comprises a motor shell (11), a front end bearing seat (12), a rear end bearing seat (13), a front end flange (14), a rear end flange (15) and an impeller cover (16), wherein the front end bearing seat (12) and the rear end bearing seat (13) are respectively arranged on the left end face and the right end face of the motor shell (11), the front end flange (14) is arranged at the left end of the front end bearing seat (12), and the rear end flange (15) and the impeller cover (16) are sequentially arranged at the right end of the rear end bearing seat (13); wherein, the impeller cover (16) is provided with a rear end air inlet (17), and the motor shell (11) is provided with an air outlet (18);
the motor assembly comprises a rotor (21), a stator (22), a front radial magnetic bearing (23) and a rear radial magnetic bearing (24), wherein the rotor (21) is axially erected inside the shell (1), the stator (22) is sleeved in the middle of the rotor (21), and the front radial magnetic bearing (23) and the rear radial magnetic bearing (24) are both arranged on the rotor (21) and are respectively positioned at the left side and the right side of the stator (22);
the large impeller (3) is arranged at the left end of the rotor (21) and is arranged at the left side of the front end flange (14), and the small impeller (4) is arranged at the right end of the rotor (21) and is arranged at the right side of the rear end flange (15) and is positioned in the impeller cover (16);
the gas passage comprises a first passage for radiating heat of the large impeller (3) and a second passage for radiating heat of the small impeller (4); the first passage comprises a first air inlet passage (510), a second passage (511), a third passage (512) and an air outlet passage (513), wherein the first air inlet passage (510) is arranged between the large impeller (3) and the front end flange (14), the second passage (511) is arranged on the front end bearing seat (12), the third passage (512) is arranged between the front radial magnetic bearing (23) and the rotor (21), the air outlet passage (513) is arranged between the front radial magnetic bearing (23) and the stator (22) and is communicated with the air outlet (18), and the left end and the right end of the second passage (511) and the left end and the right end of the third passage (512) are both communicated with the first air inlet passage (510) and the air outlet passage (513);
the second passageway includes second air inlet channel (520), fourth passageway (521), fifth passageway (522) and stator passageway (523), second air inlet channel (520) are located in impeller lid (16) and are linked together in rear end air intake (17), stator passageway (523) are located axially between stator (22) and rotor (21) and its left end communicates in air-out passageway (513), fourth passageway (521) set up axially on rear end bearing seat (13) and rear end flange (15), and its both ends are linked together respectively in stator passageway (523) and second air inlet channel (520), fifth passageway (522) are located between rear radial magnetic bearing (24) and rotor (21), and its both ends are linked together respectively in stator passageway (523) and fourth passageway (521).
2. A magnetic suspension blower head with a heat radiation structure and a rear thrust as claimed in claim 1, characterized in that the rotor (21) is further sleeved with a thrust bearing (25) positioned on the right side of the rear radial magnetic bearing (24), a first gap (28) is arranged between the thrust bearing (25) and the rear radial magnetic bearing (24), and the right end of the fifth channel (522) is communicated with the fourth channel (521) through the first gap (28).
3. A magnetic levitation blower head with heat dissipation structure and thrust rear as claimed in claim 2, characterized in that the thrust bearing (25) is provided with a clearance cylinder (531).
4. A magnetic suspension blower head with a heat radiation structure and a rear thrust according to any one of claims 1-3, characterized in that the rotor (21) is also sleeved with a protective bearing flange (26) and a back flange (27), the back flange (27) is positioned at the left side of the small impeller (4), and the protective bearing flange (26) is positioned at the left side of the back flange (27); wherein the outer diameter of the back flange (27) is smaller than the outer diameter of the protective bearing flange (26).
5. A magnetic levitation blower head with heat dissipation structure and thrust rear as claimed in claim 4, characterized in that a second gap (29) communicating with the fourth channel (521) is provided between the protection bearing flange (26) and the thrust bearing (25).
6. A magnetic levitation blower head with heat dissipation structure and thrust rear as defined in claim 5, wherein the second passage further comprises a sixth channel (532) for dissipating heat of the thrust bearing (25), the left end thereof is connected to the fourth channel (521), the right end thereof is connected to the second gap (29), and the sixth channel (532) is disposed on the thrust bearing (25) and the gap cylinder (531).
7. A magnetic suspension blower head with a heat dissipation structure and a rear thrust as claimed in claim 2 or 3, characterized in that a thrust transfer ring (540) is sandwiched between the thrust bearing (25) and the rear radial magnetic bearing (24), and the thrust transfer ring (540) is provided with a vertical gap (541) communicating the fourth channel (521) and the fifth channel (522).
8. The magnetic suspension blower head with the heat radiation structure and the rear thrust as claimed in claim 6, wherein a seventh channel (533) communicated with the second air inlet channel (520) is arranged between the back flange (27) and the small impeller (4), an eighth channel (534) is arranged in the protection bearing flange (26) and the back flange (27), a ninth channel (535) is arranged between the protection bearing flange (26) and the back flange (27) and the rotor (21), and both left and right ends of the eighth channel (534) and the ninth channel (535) are respectively communicated with the second gap (29) and the seventh channel (533).
9. A magnetic suspension blower head with a heat radiation structure and a rear thrust according to claim 1, characterized in that the heat radiation fan cover (6) is sleeved on the air outlet (18) of the motor shell (11).
10. A magnetic levitation blower head with heat dissipation structure and thrust rear as claimed in claim 9, characterized in that the heat dissipation fan cover (6) is provided with a fan cover outlet (61).
11. A magnetic suspension blower head with a heat radiation structure and a rear thrust as claimed in claim 1, characterized in that the inside of the motor housing (11) is provided with a water trough (7) for liquid cooling, and a water inlet (8) and a water outlet (9) communicated with the water trough (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322378936.5U CN220706053U (en) | 2023-09-01 | 2023-09-01 | Magnetic suspension blower head with heat radiation structure and thrust rear-mounted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322378936.5U CN220706053U (en) | 2023-09-01 | 2023-09-01 | Magnetic suspension blower head with heat radiation structure and thrust rear-mounted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706053U true CN220706053U (en) | 2024-04-02 |
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ID=90444846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322378936.5U Active CN220706053U (en) | 2023-09-01 | 2023-09-01 | Magnetic suspension blower head with heat radiation structure and thrust rear-mounted |
Country Status (1)
| Country | Link |
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| CN (1) | CN220706053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118713368A (en) * | 2024-08-30 | 2024-09-27 | 山东华东风机有限公司 | A magnetic suspension motor and vacuum pump with thrust plate heat dissipation duct |
-
2023
- 2023-09-01 CN CN202322378936.5U patent/CN220706053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118713368A (en) * | 2024-08-30 | 2024-09-27 | 山东华东风机有限公司 | A magnetic suspension motor and vacuum pump with thrust plate heat dissipation duct |
| CN118713368B (en) * | 2024-08-30 | 2024-10-29 | 山东华东风机有限公司 | A magnetic suspension motor and vacuum pump with thrust plate heat dissipation duct |
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