CN109306967A - Blower - Google Patents
Blower Download PDFInfo
- Publication number
- CN109306967A CN109306967A CN201710631156.3A CN201710631156A CN109306967A CN 109306967 A CN109306967 A CN 109306967A CN 201710631156 A CN201710631156 A CN 201710631156A CN 109306967 A CN109306967 A CN 109306967A
- Authority
- CN
- China
- Prior art keywords
- impeller
- bearing block
- protrusion
- bulge
- blade
- 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
Classifications
-
- 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
- F04D29/056—Bearings
- F04D29/0563—Bearings cartridges
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of blowers, including casing, impeller, motor and bearing block.The impeller is located at casing internal, and including wheel hub and the blade for being evenly distributed on circumference of hub, the radial end face of each blade is provided at least one bulge-structure, and the corresponding bulge-structure in position is identical at a distance from hub centre on different leaves；The bearing block upper surface is provided with the flow path groove to match with the bulge-structure, and the impeller is installed to bearing block, and the bulge-structure is embedded just below in flow path groove and can rotate in flow path groove.The continuous rotary runner that the bulge-structure and flow path groove of blower of the present invention are formed increases the resistance of wheel bottom fluid flowing, reduces radial whirl aisle spare, to reduce the vortex amount of fluid, achievees the purpose that improve blower pressure and flow.
Description
Technical field
The present invention relates to mechanical equipment technical fields, and in particular to a kind of blower.
Background technique
Blower is to improve gas pressure by the mechanical energy of input and supply gas side by side the machinery of body, it is a kind of driven stream
Body is mechanical.Wherein impeller is the critical component of blower, it is made of several blades, and the effect of impeller is by the machinery of prime mover
It can be directly transmitted to gas, to improve gas pressure and conveying gas.Existing impeller blade is contour blade, i.e. blade surrounding
For sawtooth design, but this structure can make a part of gas not pass through blade acting and be vortexed in wheel bottom and bearing block
Among end face, it is deteriorated so as to cause the aeroperformance of blower.
In view of the deficiencies of the prior art, the present invention proposes a kind of blower, which passes through the radial end face setting in blade
Bulge-structure, while the flow path groove to match in the setting of bearing block end face with bulge-structure, bulge-structure insertion runner is recessed
Slot makes wheel bottom and bearing block end face form continuous revolution runner, increases the resistance of wheel bottom fluid flowing, reduce
Radial whirl aisle spare achievees the purpose that improve blower pressure and flow to reduce the vortex amount of fluid.
Summary of the invention
The purpose of the present invention is to provide a kind of blowers, and to solve, existing blower air whirl amount is big, aeroperformance is poor
Problem.
It is an object of the present invention to provide a kind of blowers, comprising:
Casing, the casing are equipped with air inlet and air outlet；
Impeller, the impeller are located at casing internal, including wheel hub and the blade for being evenly distributed on circumference of hub, the diameter of each blade
End face is provided at least one bulge-structure, and on different leaves the corresponding bulge-structure in position at a distance from hub centre
It is identical；
Motor, the motor include stator assembly and rotor assembly, in the output end of the motor and the impeller hub
The heart is connected；
Bearing block, the bearing block be used for stator module positioning and installation, the bearing block upper surface be provided with it is described convex
The flow path groove that structure matches is played, the impeller is installed to bearing block, the bulge-structure is embedded just below flow path groove
It is interior and can be rotated in flow path groove.
Further, the impeller is rear half-opened impeller, i.e., the described impeller further includes front shroud, the front shroud setting
On the top of the blade.
Further, there are two bulge-structures for the bottom end setting of each blade, close to wheel hub and with hub centre apart from phase
Same bulge-structure is the first protrusion, is second raised apart from identical bulge-structure far from wheel hub and with hub centre；It is described
It is recessed that bearing block end face is provided with the first runner groove and second flow channel to match respectively with first protrusion and the second protrusion
Slot.
Further, the impeller is installed to bearing block, and first crowning and the second crowning are respectively with first
The distance of flow path groove inner wall and second flow channel groove inner wall all directions no more than impeller radial end face and bearing block end face away from
From.
Further, the thickness between the first runner groove and the bottom and bearing block lower end surface of second flow channel groove
Not less than 1/3 of thickness between bearing block upper surface and lower end surface.
Further, first protrusion and the shape of second protrusion are identical with height.
Further, the shape of first protrusion and the second protrusion is rectangular.
Further, the front shroud, wheel hub and blade are by plastics integrated injection molding.
Further, the motor is brshless DC motor.
Blower of the invention by blade radial end face be arranged bulge-structure, while bearing block end face setting with it is convex
The flow path groove that structure matches is played, bulge-structure is embedded in flow path groove, forms wheel bottom and bearing block end face continuously
Revolution runner, increase wheel bottom fluid flowing resistance, radial whirl aisle spare is reduced, to reduce fluid
Vortex amount, achieve the purpose that improve blower pressure and flow.
Detailed description of the invention
Fig. 1 is the internal perspective view of blower in first embodiment of the invention.
Fig. 2 is location A partial enlargement diagram in Fig. 1 of the present invention.
Fig. 3 is impeller schematic diagram of front three-dimensional structure in a specific embodiment of the invention.
Fig. 4 is impeller reverse side schematic perspective view in a specific embodiment of the invention.
Fig. 5 is a specific embodiment bottom bracket schematic perspective view of the invention.
Fig. 6 is the schematic diagram of the section structure after impeller and bearing block are mounted in an of the invention specific embodiment.
Fig. 7 is B location partial enlargement diagram in Fig. 6 of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with drawings and the embodiments,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
In this specification, it should be noted that the instruction such as term " on ", "lower", "top", "bottom", " length ", " width ", " depth "
Orientation or positional relationship be to be merely for convenience of the description present invention and simplification is retouched based on orientation or positional relationship described in attached drawing
It states, rather than the structure of indication or suggestion meaning or component must have specific direction or positional relationship.
The present invention proposes first embodiment, as shown in Figure 1 and Figure 2, a kind of blower 100, including casing 110, impeller 120, axis
It holds seat 130 and motor 140(is located among bearing block, do not marked in figure).The casing 110 is equipped with air inlet 111 and outlet air
Mouth 112；The impeller 120 is located at the inside of casing 110, including wheel hub 121 and the blade for being evenly distributed on 121 circumference of wheel hub
122(is shown in Fig. 4), the longitudinal end of each blade 122 is provided with bulge-structure 1220, and position is corresponding convex on different leaves
It is identical at a distance from 121 center of wheel hub to play structure；The motor 140 includes the stator assembly and rotor assembly output of motor 140
End is connected with 121 center of impeller hub；The bearing block 130 is used for the positioning and installation of stator module, bearing block 130
Upper surface is provided with the flow path groove 1300 to match with bulge-structure 1220, and impeller 120 is installed to bearing block 130, convex
Structure 1220 is played to be embedded just below in flow path groove 131 and can rotate in flow path groove 131.
Blower of the invention by blade radial end face be arranged bulge-structure, while bearing block end face setting with it is convex
The flow path groove that structure matches is played, bulge-structure is embedded in flow path groove, forms wheel bottom and bearing block end face continuously
Revolution runner, increase wheel bottom fluid flowing resistance, radial whirl aisle spare is reduced, to reduce fluid
Vortex amount, achieve the purpose that improve blower pressure and flow.
Further, as shown in figure 3, impeller 120 is rear half-opened impeller, i.e. impeller 120 further includes front shroud 123, institute
It states front shroud 123 to be arranged at impeller tip air inlet 111,120 bottom of impeller is without cover board, and the structure is relative to open impeller
Reduce fluid vortex amount, improves the effect of impeller.
Further, one or more can be for the quantity of bulge-structure on each blade, it is preferred that as schemed
4, shown in Fig. 5, Fig. 6, Fig. 7, there are two bulge-structures for the longitudinal end setting of each blade 122, close to wheel hub 121 and and wheel hub
The identical bulge-structure of 121 centre distances is the first protrusion 1221, far from wheel hub 121 and identical with 121 centre distance of wheel hub
Bulge-structure is the second protrusion 1222；130 end face of bearing block is provided with convex with first protrusion 1221 and second respectively
Play the 1222 first runner grooves 131 and second flow channel groove 132 to match.Impeller 120 is installed to bearing block 130, leaf
First protrusion 1221 of piece 122 is embedded in the first runner groove 131 of 130 end face of bearing block, 1222 insertion second of the second protrusion
In flow path groove 132.When blower works, wheel bottom and bearing block end face form continuous revolution runner, increase so logical
The flow resistance in road reduces fluid vortex amount.
Further, as shown in Figure 6, Figure 7, after the installation to bearing block 130 of impeller 120, first crowning and second
(i.e. D1 and D2) no at a distance from 132 inner wall all directions of 131 inner wall of first runner groove and second flow channel groove respectively for crowning
Greater than 120 end face of impeller and 130 end face distance D of bearing block.This structure can be to avoid while increasing fluid leakage resistance
All directions accumulate a large amount of fluid vortexes, to increase the pressure and flow of blower.
Further, the thickness between first runner groove and the bottom and bearing block lower end surface of second flow channel groove is not small
The 1/3 of thickness between bearing block upper surface and lower end surface can guarantee the intensity of pedestal base, when avoiding wheel rotation in this way
The problem of leading to base-plate breaking.
Can be identical for the height and shape of the first protrusion and the second protrusion, it can not also be identical.Preferably, Suo You
One protrusion is identical with the height of the second protrusion, and shape is rectangular.It on the one hand can simplify the production of impeller and bearing block in this way
On the other hand technique can also preferably achieve the purpose that improve blower pressure and flow.
Further, front shroud, wheel hub and blade are by plastics integrated injection molding.It can be reduced into using plastic material
This, while blower works together more lightly.
Further, the motor used in the present embodiment is brshless DC motor, and the electric efficiency is high, the service life is long and safety
Health.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within spirit and principle.
Claims (9)
1. a kind of blower, comprising:
Casing, the casing are equipped with air inlet and air outlet；
Impeller, the impeller are located at casing internal, including wheel hub and the blade for being evenly distributed on circumference of hub, the diameter of each blade
End face is provided at least one bulge-structure, and on different leaves the corresponding bulge-structure in position at a distance from hub centre
It is identical；
Motor, the motor include the stator assembly and rotor assembly output end of the motor and impeller hub center phase
Connection；
Bearing block, the bearing block be used for stator module positioning and installation, the bearing block upper surface be provided with it is described convex
The flow path groove that structure matches is played, the impeller is installed to bearing block, the bulge-structure is embedded just below flow path groove
It is interior and can be rotated in flow path groove.
2. blower according to claim 1, which is characterized in that the impeller is rear half-opened impeller, i.e., the described impeller is also
Including front shroud, the top of the blade is arranged in the front shroud.
3. blower according to claim 2, which is characterized in that there are two protrusion knots for the longitudinal end setting of each blade
Structure, close to wheel hub and with hub centre apart from identical bulge-structure be first protrusion, far from wheel hub and with hub centre distance
Identical bulge-structure is the second protrusion；The bearing block end face be provided with respectively with it is described first protrusion and second protrusion phase
The first runner groove and second flow channel groove matched.
4. blower according to claim 3, which is characterized in that the impeller is installed to bearing block, first protrusion
Face and the second crowning are not more than impeller at a distance from first runner groove inner wall and second flow channel groove inner wall all directions respectively
Radial end face is at a distance from bearing block end face.
5. blower according to claim 4, which is characterized in that the bottom of the first runner groove and second flow channel groove
1/3 of thickness not less than thickness between bearing block upper surface and lower end surface between bearing block lower end surface.
6. blower according to claim 5, which is characterized in that the shape and height of first protrusion and second protrusion
It spends identical.
7. the blower stated according to claim 6, which is characterized in that the shape of first protrusion and the second protrusion is rectangular.
8. blower according to claim 2, which is characterized in that the front shroud, wheel hub and blade are integrally infused by plastics
It is moulded into type.
9. blower according to claim 1, which is characterized in that the motor is brshless DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631156.3A CN109306967A (en) | 2017-07-28 | 2017-07-28 | Blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631156.3A CN109306967A (en) | 2017-07-28 | 2017-07-28 | Blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109306967A true CN109306967A (en) | 2019-02-05 |
Family
ID=65207672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710631156.3A Pending CN109306967A (en) | 2017-07-28 | 2017-07-28 | Blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109306967A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594169A (en) * | 2019-10-21 | 2019-12-20 | 珠海格力电器股份有限公司 | Fan and heat exchange equipment with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952603A (en) * | 2008-02-14 | 2011-01-19 | 内皮尔涡轮增压器有限公司 | Impeller and turbocharger |
| CN103185027A (en) * | 2005-10-28 | 2013-07-03 | 雷斯梅德电动科技有限公司 | Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor |
| CN104024648A (en) * | 2011-11-10 | 2014-09-03 | 大陆汽车有限责任公司 | Centrifugal pump for delivering liquids in a motor vehicle |
| DE102016001484A1 (en) * | 2016-02-11 | 2017-08-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
-
2017
- 2017-07-28 CN CN201710631156.3A patent/CN109306967A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185027A (en) * | 2005-10-28 | 2013-07-03 | 雷斯梅德电动科技有限公司 | Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor |
| CN101952603A (en) * | 2008-02-14 | 2011-01-19 | 内皮尔涡轮增压器有限公司 | Impeller and turbocharger |
| CN104024648A (en) * | 2011-11-10 | 2014-09-03 | 大陆汽车有限责任公司 | Centrifugal pump for delivering liquids in a motor vehicle |
| DE102016001484A1 (en) * | 2016-02-11 | 2017-08-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594169A (en) * | 2019-10-21 | 2019-12-20 | 珠海格力电器股份有限公司 | Fan and heat exchange equipment with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Applicant after: Shenzhen meimeimeichuangyi Medical Technology Co., Ltd Address before: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Applicant before: MEHOW INNOVATIVE Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190205 |