CN209687764U - A kind of series connection centrifugal blower - Google Patents
A kind of series connection centrifugal blower Download PDFInfo
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- CN209687764U CN209687764U CN201920408950.6U CN201920408950U CN209687764U CN 209687764 U CN209687764 U CN 209687764U CN 201920408950 U CN201920408950 U CN 201920408950U CN 209687764 U CN209687764 U CN 209687764U
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- spiral case
- centrifugal blower
- case air
- air inlet
- series connection
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Abstract
The utility model provides a kind of series connection centrifugal blower, including left spiral case (1), left centrifugation blade (2), right spiral case (3), right centrifugation blade (4), electric machine assembly (5), outer cover (6).Left spiral case (1) is equipped with left spiral case air inlet (1.1) and left spiral case air outlet (1.2), and right spiral case (3) is equipped with right spiral case air inlet (3.1), right spiral case air outlet (3.2).Outer gas stream enters centrifugal blower from right spiral case air inlet (3.1) first, the air-flow flowed out from right spiral case air outlet (3.2) flows into left spiral case air inlet (1.1), and last air-flow flows out centrifugal blower from left spiral case air outlet (1.2).The series connection centrifugal blower of the utility model uses a motor, has the features such as static pressure, small size, simple structure outside high machine.
Description
Technical field
The present invention relates to ventilation blower technical fields, in particular to a kind of centrifugal fan.
Background technique
Centrifugal fan is widely used in industrial products and the consumer goods, such as smoke exhaust ventilator, air conditioner, air cleaning
Device, refrigerator, air CPU etc..Gas is set to obtain kinetic energy by motor driven wind wheel high speed rotation, and inside spiral case
It realizes that dynamic pressure can arrive the conversion of static energy, realizes gas high efficiency flow, meet the functional requirement of industrial products and the consumer goods.
For the product for needing that outside network resistance is overcome to run, in outside network high static pressure, it is also desirable to which product is having
There is the outer static pressure of high machine in the space of limit, resistance of pipe system is overcome with this, it is therefore desirable to which centrifugal blower has high machine outer static pressure, small
The characteristics of size.
If desired the centrifugal blower of the prior art improves the outer static pressure of machine or needs under the premise of not changing product size
The revolving speed of centrifugal blower is improved, to obtain static pressure outside high machine, this will lead to the increase of complete product noise, the body of users'comfort
Test reduction；It needs using multiple independent fans in series, this will lead to product structure larger, cost increase, reliably
Property reduce.
In view of the above technical problem, the present invention proposes a kind of series connection centrifugal blower, solves centrifugal blower in the prior art
The outer problem that static pressure is low, size is big of machine；The present invention can allow centrifugal blower not changing structure ruler only with a motor simultaneously
Under the premise of very little, has the outer static pressure of higher machine.
Summary of the invention
The scheme of present invention solution above-mentioned technical problem are as follows: a kind of series connection centrifugal blower, including left spiral case, left centrifugation are provided
Fan blade, right spiral case, right centrifugation blade, electric machine assembly, outer cover, the left spiral case are equipped with left spiral case air inlet, left spiral case air outlet；
The right spiral case is equipped with right spiral case air inlet, right spiral case air outlet, and outer gas stream enters centrifugal blower from right spiral case air inlet, from
The air-flow of right spiral case air outlet outflow can only flow into left spiral case air inlet, and air-flow finally flows out centrifugation wind from left spiral case air outlet
Machine；The electric machine assembly has and only one motor.
Further, the left spiral case air inlet, right spiral case air outlet are arranged inside outer cover；The left spiral case outlet air
Mouth, the setting of right spiral case air inlet are outside outer cover or concordant with outer cover.
Further, the air-flow inside the left spiral case and right spiral case is not mixed.
Further, the quantity of the left spiral case air inlet has 1 or 2；The quantity of the right spiral case air inlet has 1
Or 2.
The present invention has the advantages that
1, the series connection of centrifugal blower can be realized only with a motor in series connection centrifugal blower of the invention, make product at
This is low, structure is simpler, meanwhile, under identical same size and same rotational speed, centrifugal blower of the invention has outside higher machine
Static pressure, 1.6 times of at least identical size and the similar product under same rotational speed；
2, series connection centrifugal blower of the invention only requires that left spiral case air inlet and right spiral case air outlet have to setting outside
Cover is internal, and series connection centrifugal blower is not necessarily required to be made into the shape of cuboid, can be abnormity, allows product to have so wider
Structure application range；
3, the quantity of series connection centrifugal blower of the invention, left spiral case and right spiral case can be 2, in this way in comparable size
Under, series connection centrifugal blower can have bigger air quantity.
Detailed description of the invention
Description of the present invention combination following accompanying drawings to embodiment, will be apparent and be readily appreciated that:
Fig. 1 is a kind of series connection centrifugal fan structure schematic diagram of the embodiment of the present invention 1；
Fig. 2 is a kind of series connection centrifugal fan structure schematic diagram of the embodiment of the present invention 2；
Fig. 3 is a kind of series connection centrifugal fan structure schematic diagram of the embodiment of the present invention 3；
Fig. 4 is a kind of spiral case setting angle structural schematic diagram of series connection centrifugal blower of the embodiment of the present invention 3；
In the accompanying drawings: 1 left spiral case, 1.1 left spiral case air inlets, 1.2 left spiral case air outlets, 2 left centrifugation blades, 3 right spiral cases,
3.1 right spiral case air inlets, 3.2 right spiral case air outlets, 4 right centrifugation blades, 5 electric machine assemblies, 5.1 motors, 5.2 electric machine supports, outside 6
Cover.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1:
As shown in Figure 1, a kind of series connection centrifugal blower provided by the invention includes left spiral case 1, left centrifugation blade 2, right spiral case
3, right centrifugation blade 4, electric machine assembly 5, outer cover 6, the left spiral case 1 are equipped with left spiral case air inlet 1.1, left spiral case air outlet 1.2,
The right spiral case 3 is equipped with right spiral case air inlet 3.1, right spiral case air outlet 3.2, and outer gas stream enters from right spiral case air inlet 3.1
Centrifugal blower；The air-flow flowed out from right spiral case air outlet 3.2 can only flow into left spiral case air inlet 1.1；Last air-flow is from left spiral case
Air outlet 1.2 flows out centrifugal blower；The electric machine assembly 5 has and only one motor.
The left spiral case air inlet 1.1, right spiral case air outlet 3.2 are arranged inside outer cover 6；The left spiral case air outlet
1.2, right spiral case air inlet 3.1 is concordant with outer cover 6；The outer cover 6 is cuboid-type.
Air-flow inside the left spiral case 1 and right spiral case 3 is not mixed, and outer gas stream can only be from right spiral case air inlet
3.1 enter centrifugal blower, after right centrifugation blade 4 and right spiral case 3, flow out from right spiral case air outlet 3.2, enter back into left spiral case
Air inlet 1.1 finally flows out this series connection centrifugal blower from left spiral case air outlet 1.2 after left centrifugation blade 2 and left spiral case 1.
The quantity of the left spiral case air inlet 1.1 is 1；The quantity of the right spiral case air inlet 3.1 is 1.
Embodiment 2:
As shown in Fig. 2, unlike the first embodiment, in embodiment 2, the left spiral case air outlet 1.2 is concordant with outer cover 6,
Right spiral case air inlet 3.1 is arranged outside outer cover 6, and the outer cover 6 is abnormal shape；The quantity of the left spiral case air inlet 1.1 is 2
It is a；The quantity of the right spiral case air inlet 3.1 is 2.
After outer gas stream is from two right spiral case air inlets 3.1 into centrifugal blower, air-flow is flowed from right spiral case air outlet 3.2
Out；The air-flow flowed out from right spiral case air outlet 3.2 can only flow into two left spiral case air inlets 1.1, finally from left spiral case air outlet
1.2 outflow centrifugal blowers.
The series connection centrifugal blower other structures and working principle of embodiment 2 are same as Example 1, repeat no more.
Embodiment 3:
As shown in figure 3, unlike the first embodiment, in embodiment 3, using electric machine rotational axis as rotation center, left spiral case 1
It rotates into certain Angle with right spiral case 3.
Further, as shown in figure 3, crossing the normal direction of electric machine rotational axis and one reference of air inlet wall surface work of cuboid outer cover 6
Plane is defined as reference planes Q.
Further, the series connection centrifugal blower is projected to reference planes Q, as shown in Figure 4；It is flat in the reference projection
On the Q of face, the left spiral case 1 rotates into certain Angle with right spiral case 3, and the diffuser and right spiral case for defining left volute outlet 1.2 go out
Angle between the diffuser of mouth 3.2 is α, α=45 ° in the present embodiment.
The series connection centrifugal blower other structures and working principle of embodiment 3 are same as Example 1, repeat no more.
The present invention solves the noise and dimensional problem that existing centrifugal blower needs the outer static pressure of elevator to be encountered, meanwhile,
Centrifugal blower can be made to have the features such as static pressure, small size outside high machine using a motor.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (4)
1. a kind of series connection centrifugal blower, including left spiral case (1), left centrifugation blade (2), right spiral case (3), right centrifugation blade (4), electricity
Thermomechanical components (5), outer cover (6), the left spiral case (1) are equipped with left spiral case air inlet (1.1), left spiral case air outlet (1.2), the right side
Spiral case (3) be equipped with right spiral case air inlet (3.1), right spiral case air outlet (3.2), it is characterised in that: outer gas stream from right spiral case into
Air port (3.1) enters centrifugal blower, and the air-flow flowed out from right spiral case air outlet (3.2) can only flow into left spiral case air inlet (1.1)
, air-flow is finally from left spiral case air outlet (1.2) outflow centrifugal blower；The electric machine assembly (5) has and only one motor.
2. a kind of series connection centrifugal blower according to claim 1, it is characterised in that: the left spiral case air inlet (1.1), the right side
Spiral case air outlet (3.2) setting is internal in outer cover (6)；The left spiral case air outlet (1.2), right spiral case air inlet (3.1) setting
It is external or concordant with outer cover (6) in outer cover (6).
3. a kind of series connection centrifugal blower according to claim 1, it is characterised in that: the left spiral case (1) and right spiral case (3)
Internal air-flow is not mixed.
4. a kind of series connection centrifugal blower according to claim 1, it is characterised in that: the left spiral case air inlet (1.1)
Quantity has 1 or 2；The quantity of the right spiral case air inlet (3.1) has 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408950.6U CN209687764U (en) | 2019-03-28 | 2019-03-28 | A kind of series connection centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408950.6U CN209687764U (en) | 2019-03-28 | 2019-03-28 | A kind of series connection centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687764U true CN209687764U (en) | 2019-11-26 |
Family
ID=68606485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920408950.6U Expired - Fee Related CN209687764U (en) | 2019-03-28 | 2019-03-28 | A kind of series connection centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687764U (en) |
-
2019
- 2019-03-28 CN CN201920408950.6U patent/CN209687764U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20210328 |