CN110566478A - fan and air conditioner - Google Patents
fan and air conditioner Download PDFInfo
- Publication number
- CN110566478A CN110566478A CN201910849238.4A CN201910849238A CN110566478A CN 110566478 A CN110566478 A CN 110566478A CN 201910849238 A CN201910849238 A CN 201910849238A CN 110566478 A CN110566478 A CN 110566478A
- Authority
- CN
- China
- Prior art keywords
- hub
- motor
- fan
- shaft
- groove
- Prior art date
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
the application discloses fan, including motor and the fan blade subassembly of being connected with this motor cooperation, this fan blade subassembly includes wheel hub and blade. Wherein, a plurality of blades are connected with the hub and are distributed around the hub; the shaft part bulge structure is arranged in the middle of the hub; the middle position of the shaft part bulge structure is hollow; the inner diameter of the shaft portion protrusion structure is D2; the lower end surface of the motor is provided with a groove; the inner diameter of the groove is D3; the lower end of the motor is provided with a bearing convex part positioned in the groove; the bearing boss has an outer diameter D1; d3 > D2 > D1; the shaft part bulge structure is embedded in a cavity enclosed by the groove and the bearing bulge part to form a sealing structure. The fan provided by the application effectively avoids the change of the motor load caused by the accumulation of water in the fan impeller hub, so that the working performance of the motor is stable, the water is prevented from entering the motor, the effect of protecting the motor is achieved, and the safety and the reliability of the motor in the fan are improved; an air conditioner having the fan is also provided.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a fan and an air conditioner with the fan.
Background
When the fan blades and the motor of the fan blades are outdoors, the motor needs a sealing structure, so that the influence of water inflow on lubrication of the motor or the damage to the motor due to short circuit is avoided, the motor is complicated due to the sealing structure, even the rotary friction resistance is increased, and the motor efficiency is reduced. When the fan blade and the motor thereof are vertically or obliquely installed, water can be accumulated in the hub of the fan blade, the mass of the fan blade is increased, the load of the motor is changed, the working condition of the fan is changed, the performance of the fan is influenced, the accumulated water can permeate into the motor, the reliability is influenced, and potential safety hazards exist.
Patent application No. CN104251522A discloses an air conditioner external unit with upper air outlet, in which, the fan blade is located at the upper side of the motor. Because the outdoor unit of the air conditioner is exposed to rainwater outdoors, the possibility of water accumulation exists in the hub of the wind impeller, and water can enter the motor through the motor shaft, so that the motor is damaged; if the sealing measures are added, the motor becomes complicated and the manufacturing cost is increased.
Therefore, there is a need to address and improve the safety and reliability of the motors of the patent publications.
disclosure of Invention
The invention aims to overcome the problems in the prior art, provides a fan with good waterproof performance and reliability, and also provides an air conditioner with the fan.
In order to achieve the purpose, the invention adopts the following scheme:
The utility model provides a fan, including the motor and with the fan blade subassembly that the motor matches and is connected, the fan blade subassembly includes:
A hub;
The blades are connected with the hub and are distributed around the hub in a connected manner;
The shaft part bulge structure is arranged at the middle position of the hub; the middle position of the shaft part bulge structure is hollow; the inner diameter of the shaft portion protrusion structure is D2;
A groove is formed in the lower end face of the motor; the inner diameter of the groove is D3; the lower end of the motor is provided with a bearing convex part positioned in the groove; the outer diameter of the bearing boss is D1; the D3 > D2 > D1;
the shaft part protruding structure is embedded in a cavity defined by the groove and the bearing protruding part to form a sealing structure.
Further, the hub includes a hub sidewall and a hub bottom; the lower end of the side wall of the hub is connected with the bottom of the hub; and the bottom of the hub is provided with a ventilation part communicated with the upper end surface and the lower end surface of the bottom of the hub.
furthermore, be equipped with on the wheel hub bottom with the upper and lower terminal surface of wheel hub bottom is linked together and is used for discharging the first drainage hole of ponding on the wheel hub.
Further, the ventilation portion has a plurality; the first drain hole is provided with a plurality of water outlets; the plurality of ventilation parts are uniformly distributed around the circumferential direction of a crankshaft of the motor; the first water drainage holes are uniformly distributed around the circumferential direction of a crankshaft of the motor.
Further, the diameters of the first water drainage holes distributed in the circumferential direction around the crankshaft of the motor are D5; the diameters of the plurality of ventilation parts distributed around the circumferential direction of the crankshaft of the motor are D6; the hub sidewall has an inner diameter D4; the D4 > D5 > D6; and D5/D4 is more than or equal to 0.6.
Further, a shaft supporting part is arranged between the bottom of the hub and the shaft part protruding structure; and the shaft supporting part is provided with a second drain hole which is communicated with the lower end surface of the bottom of the hub and is used for draining accumulated water in the shaft part protruding structure.
Furthermore, a plurality of first reinforcing ribs distributed around the shaft part protruding structure are arranged between the hub and the shaft part protruding structure.
furthermore, the first reinforcing rib is a curved reinforcing rib which is formed by extending along the clockwise rotation of the crankshaft of the motor.
Furthermore, a second reinforcing rib distributed around the motor crankshaft is arranged in the middle of the lower end face of the hub.
The application also discloses an air conditioner, which comprises a machine body, an upper cover and the fan; the fan is arranged in the upper end of the machine body; the upper cover is arranged at the upper end of the machine body and is positioned above the fan.
Compared with the prior art, the invention has the following advantages:
According to the fan, the hub is provided with the shaft part protruding structure, the lower end face of the motor is provided with the groove and the bearing protruding part, and the size D3 between the diameters corresponding to the groove, the shaft part protruding structure and the bearing protruding part is larger than D2 and larger than D1; the shaft part protruding structure is conveniently embedded into a cavity formed by the groove and the bearing protruding part, and the bearing protruding part is embedded into the hollow position or the upper end of the shaft part protruding structure to form a sealed structure, so that the change of motor load caused by the accumulation of water in the hub of the fan impeller is effectively avoided, the working performance of the motor is stable, the water is prevented from entering the motor, the effect of protecting the motor is achieved, and the safety and the reliability of the motor in the fan are improved.
Drawings
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic cross-sectional view of a blower of the present invention.
Fig. 2 is an exploded perspective view of the blower of the present invention.
Fig. 3 is a schematic sectional view of a fan blade assembly of the fan of the present invention.
Fig. 4 is a schematic bottom view of a fan blade assembly of the fan of the present invention.
Fig. 5 is a schematic top view of a fan blade assembly of the fan of the present invention.
Fig. 6 is a partial sectional schematic view of an air conditioner of the present invention.
Fig. 7 is a schematic partial sectional view in a top view of an air conditioner of the present invention.
The figure includes:
The fan comprises a fan 10, a motor 1, a groove 11, a bearing convex part 12, a fan blade assembly 2, a hub 21, a hub side wall 211, a hub bottom 212, a blade 22, a shaft part protruding structure 23, a ventilating part 3, a first drainage hole 4, a shaft supporting part 5, a second drainage hole 6, a first reinforcing rib 7, a second reinforcing rib 8, a machine body 20 and an upper cover 30.
Detailed Description
The invention is further described with reference to the following examples.
As shown in fig. 1 to 7, a fan 10 includes a motor 1 and a fan blade assembly 2 cooperatively connected with the motor 1, where the fan blade assembly 2 includes a hub 21 and a blade 22. Wherein, a plurality of blades 22 are connected with the hub 21 and are distributed around the hub 21; the shaft part bulge structure 23 is arranged at the middle position of the hub 21; the middle position of the shaft part bulge structure 23 is hollow; the inner diameter of the shaft projection arrangement 23 is D2; a groove 11 is formed in the lower end face of the motor 1; the inner diameter of the groove 11 is D3; the lower end of the motor 1 is provided with a bearing convex part 12 positioned in the groove 11; the outer diameter of the bearing boss 12 is D1; the D3 > D2 > D1; the shaft portion protrusion structure 23 is embedded in a cavity defined by the groove 11 and the bearing protrusion 12 to form a sealing structure.
The fan 10 is provided with a shaft part convex structure 23 on a hub 21, and a groove 11 and a bearing convex part 12 are arranged on the lower end surface of a motor 1, wherein the size D3 & gtD 2 & gtD 1 among the corresponding diameters of the groove 11, the shaft part convex structure 23 and the bearing convex part 12; be convenient for inlay axial region protruding structure 23 and establish into in the cavity that recess 11 and bearing convex part 12 formed, bearing convex part 12 inlays simultaneously and establishes in the hollow position or the upper end of axial region protruding structure 23, forms sealed structure, effectively avoids water gathering in impeller hub 21 and the motor 1 load change that leads to, makes motor 1 working property stable, avoids water to get into motor 1, plays the effect of protection motor 1, improves motor 1 safety and reliability in the fan 10. Wherein the depth of the groove 11 is H1; the height of the shaft projection arrangement 23 is L1; l1 > H1, and L1 is larger than H1, so that the shaft part protrusion structure 23 can be set to have enough position to enter a cavity formed by the groove 11 and the bearing protrusion 12 according to needs, a sealed structure is formed conveniently, and water is prevented from entering the motor 1.
And through the internal diameter of restriction recess 11, the internal diameter of axial region protruding structure 23 and the external diameter of bearing convex part 12, be convenient for realize the installation between this motor 1 and fan blade subassembly 2, be convenient for realize the assembly between motor 1 and the fan blade subassembly 2.
In the present embodiment, the hub 21 includes a hub side wall 211 and a hub bottom 212; the lower end of the hub side wall 211 is connected with the hub bottom 212; the hub bottom 212 is provided with a ventilation part 3 communicated with the upper end surface and the lower end surface of the hub bottom 212. Through set up ventilation portion 3 in wheel hub bottom 212, the circulation of air of being convenient for helps the heat dissipation between motor 1 and the fan blade assembly 2, improves the stability of this fan 10.
The hub bottom 212 is provided with a first drainage hole 4 communicated with the upper end face and the lower end face of the hub bottom 212 and used for draining accumulated water on the hub 21. Through setting up first drainage hole 4 in wheel hub bottom 212, help the discharge ponding on the wheel hub 21 avoids increasing the fan blade quality and influences the problem of fan 10 performance, reliability and potential safety hazard, simultaneously, avoids ponding to get into motor 1, plays the effect of protection motor 1, improves motor 1 safety and reliability in the fan 10.
the ventilation part 3 is provided with a plurality of ventilation parts; the first drain hole 4 has a plurality; through all being equipped with a plurality ofly with ventilation portion 3 and state first drainage hole 4, be convenient for ventilate the heat dissipation fast between motor 1 and the fan blade subassembly 2 to and the quick discharge of ponding on the wheel hub 21. The plurality of ventilation parts 3 are uniformly distributed around the circumferential direction of the crankshaft of the motor 1; the first drain holes 4 are uniformly distributed around the circumferential direction of the crankshaft of the motor 1. And set up ventilation portion 3 and first drainage hole 4 and wind the bent axle circumference evenly distributed of motor 1 makes the whole outward appearance of fan blade subassembly 2 even good looking, moreover on heat dissipation and drainage facility, reasonable setting plays good heat dissipation and drainage effect.
preferably, the plurality of first drain holes 4 are distributed circumferentially around the crankshaft of the motor 1 and have a diameter D5; the diameters of the plurality of ventilation parts 3 distributed around the circumferential direction of the crankshaft of the motor 1 are D6; the hub sidewall 211 has an inner diameter D4; the D4 > D5 > D6; and D5/D4 is more than or equal to 0.6. The diameters of the first water drainage holes 4 distributed around the circumferential direction of the crankshaft of the motor 1 and the diameters of the ventilation parts 3 distributed around the circumferential direction of the crankshaft of the motor 1 are limited, namely the positions of the first water drainage holes 4 and the ventilation parts 3 are limited, meanwhile, D5/D4 is more than or equal to 0.6, the problem that the heat dissipation and the drainage effects of the fan blade assembly 2 are influenced due to the fact that the hub side wall 211, the first water drainage holes 4 and the ventilation parts 3 are too dense is avoided, and the problems that the performance, the reliability and the potential safety hazard of the fan 10 are influenced, the safety and the reliability of the motor 1 are influenced, and
In order to further provide effective protection for the motor 1, a shaft supporting part 5 is arranged between the hub bottom part 212 and the shaft part convex structure 23; the shaft supporting part 5 is provided with a second water discharging hole 6 which is communicated with the lower end surface of the hub bottom part 212 and is used for discharging accumulated water in the shaft part protruding structure 23. The shaft supporting part 5 plays a role in supporting and fixing a crankshaft of the motor 1, so that the motor 1 can drive the fan blade assembly 2 to rotate and work conveniently. And set up on axle supporting part 5 second wash port 6 can be to getting into the interior ponding of axial region protruding structure 23 quick discharge, avoids ponding to get into motor 1, plays the effect of protection motor 1, improves the motor 1 safety and the reliability in the fan 10.
In the present embodiment, a plurality of first ribs 7 distributed around the shaft portion protrusion structure 23 are provided between the hub 21 and the shaft portion protrusion structure 23. The lower ends of the first ribs 7 are connected to the hub bottom portion 212. Through setting up many first strengthening ribs 7, help strengthening the stability between wheel hub 21 and the protruding structure 23 of axial part, improve fan 10 stability and reliability.
The first reinforcing rib 7 is a curved reinforcing rib formed by clockwise rotating and extending along the crankshaft of the motor 1. Through setting up the curved surface strengthening rib, when this fan blade subassembly 2 is rotatory, the atress is even, avoids too much influence fan 10 rotation performance.
In order to improve the stability of connection between the motor 1 and the fan blade assembly 2, a second reinforcing rib 8 distributed around the crankshaft of the motor 1 is arranged in the middle of the lower end face of the hub 21. Strengthen fixedly through second strengthening rib 8, help improving this fan 10's stability and reliability.
The fan 10 of the invention is provided with the shaft part convex structure 23 on the hub 21, and the lower end surface of the motor 1 is provided with the groove 11 and the bearing convex part 12, wherein the size D3 between the corresponding diameters of the groove 11, the shaft part convex structure 23 and the bearing convex part 12 is more than D2 and more than D1; be convenient for inlay axial region protruding structure 23 and establish into in the cavity that recess 11 and bearing convex part 12 formed, bearing convex part 12 inlays simultaneously and establishes in the hollow position or the upper end of axial region protruding structure 23, forms sealed structure, effectively avoids water gathering in impeller hub 21 and the motor 1 load change that leads to, makes motor 1 working property stable, avoids water to get into motor 1, plays the effect of protection motor 1, improves motor 1 safety and reliability in the fan 10.
the present application further discloses an air conditioner, as shown in fig. 6 and 7, comprising a body 20, an upper cover 30 and the above-mentioned fan 10; the fan 10 is arranged in the upper end of the machine body 20; the upper cover 30 is disposed at the upper end of the body 20 and above the blower 10. In the upper end through setting up fan 10 organism 20, reuse upper cover 30 protection fan 10 and dust separation again, the normal use of the air conditioner of being convenient for improves the holistic stability and the reliability of this air conditioner.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (10)
1. The utility model provides a fan, including the motor and with the fan blade subassembly that the motor cooperateed and is connected, its characterized in that, the fan blade subassembly includes:
A hub;
the blades are connected with the hub and are distributed around the hub in a connected manner;
The shaft part bulge structure is arranged at the middle position of the hub; the diameter of the shaft portion protrusion structure is D2;
A groove is formed in the lower end face of the motor; the diameter of the groove is D3; the lower end of the motor is provided with a bearing convex part positioned in the groove; the diameter of the bearing convex part is D1; the D3 > D2 > D1;
The shaft part protruding structure is embedded in a cavity defined by the groove and the bearing protruding part to form a sealing structure.
2. The fan of claim 1 wherein the hub comprises a hub sidewall and a hub bottom; the lower end of the side wall of the hub is connected with the bottom of the hub; and the bottom of the hub is provided with a ventilation part communicated with the upper end surface and the lower end surface of the bottom of the hub.
3. The fan as claimed in claim 2, wherein a first drainage hole is formed in the bottom of the hub, and the first drainage hole is communicated with the upper end face and the lower end face of the bottom of the hub and used for draining accumulated water on the hub.
4. the fan of claim 3, wherein the ventilation portion has a plurality; the first drain hole is provided with a plurality of water outlets; the plurality of ventilation parts are uniformly distributed around the circumferential direction of a crankshaft of the motor; the first water drainage holes are uniformly distributed around the circumferential direction of a crankshaft of the motor.
5. The fan as claimed in claim 4, wherein the plurality of first drain holes are distributed circumferentially around a crankshaft of the motor with a diameter of D5; the diameters of the plurality of ventilation parts distributed around the circumferential direction of the crankshaft of the motor are D6; the hub sidewall has an inner diameter D4; the D4 > D5 > D6; and D5/D4 is more than or equal to 0.6.
6. The fan of claim 2 wherein a shaft support is provided between the hub bottom and the shaft boss; and the shaft supporting part is provided with a second drain hole which is communicated with the lower end surface of the bottom of the hub and is used for draining accumulated water in the shaft part protruding structure.
7. The fan of claim 1 wherein a plurality of first ribs are disposed between the hub and the shaft projection arrangement and are distributed about the shaft projection arrangement.
8. the fan of claim 1, wherein the first rib is a curved rib extending along a clockwise rotation of a crankshaft of the motor.
9. The fan of claim 1, wherein a second reinforcing rib is disposed at a middle position of the lower end surface of the hub and distributed around the crankshaft of the motor.
10. An air conditioner, characterized by comprising a body, an upper cover and a fan according to any one of claims 1 to 9; the fan is arranged in the upper end of the machine body; the upper cover is arranged at the upper end of the machine body and is positioned above the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910849238.4A CN110566478A (en) | 2019-09-09 | 2019-09-09 | fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910849238.4A CN110566478A (en) | 2019-09-09 | 2019-09-09 | fan and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566478A true CN110566478A (en) | 2019-12-13 |
Family
ID=68778750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910849238.4A Pending CN110566478A (en) | 2019-09-09 | 2019-09-09 | fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566478A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425497U (en) * | 1987-08-03 | 1989-02-13 | ||
| JP2002106490A (en) * | 2000-09-28 | 2002-04-10 | Toyo Radiator Co Ltd | Sealing structure for fan |
| CN201113624Y (en) * | 2007-08-24 | 2008-09-10 | 台达电子工业股份有限公司 | Fan and its motor |
| CN102155437A (en) * | 2010-02-11 | 2011-08-17 | 浙江三花股份有限公司 | Drainage pump |
| CN207069753U (en) * | 2017-06-13 | 2018-03-02 | 中山大洋电机股份有限公司 | A kind of sealing structure of commercial motor |
| US20180142694A1 (en) * | 2015-07-07 | 2018-05-24 | Danfoss Commercial Compressors | A centrifugal conpressor having an inter-stage sealing arrangement |
| CN211082327U (en) * | 2019-09-09 | 2020-07-24 | 珠海格力电器股份有限公司 | Fan and air conditioner |
-
2019
- 2019-09-09 CN CN201910849238.4A patent/CN110566478A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425497U (en) * | 1987-08-03 | 1989-02-13 | ||
| JP2002106490A (en) * | 2000-09-28 | 2002-04-10 | Toyo Radiator Co Ltd | Sealing structure for fan |
| CN201113624Y (en) * | 2007-08-24 | 2008-09-10 | 台达电子工业股份有限公司 | Fan and its motor |
| CN102155437A (en) * | 2010-02-11 | 2011-08-17 | 浙江三花股份有限公司 | Drainage pump |
| US20180142694A1 (en) * | 2015-07-07 | 2018-05-24 | Danfoss Commercial Compressors | A centrifugal conpressor having an inter-stage sealing arrangement |
| CN207069753U (en) * | 2017-06-13 | 2018-03-02 | 中山大洋电机股份有限公司 | A kind of sealing structure of commercial motor |
| CN211082327U (en) * | 2019-09-09 | 2020-07-24 | 珠海格力电器股份有限公司 | Fan and air conditioner |
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