CN203201833U - Pipeline type ventilation centrifugal fan - Google Patents
Pipeline type ventilation centrifugal fan Download PDFInfo
- Publication number
- CN203201833U CN203201833U CN 201320163207 CN201320163207U CN203201833U CN 203201833 U CN203201833 U CN 203201833U CN 201320163207 CN201320163207 CN 201320163207 CN 201320163207 U CN201320163207 U CN 201320163207U CN 203201833 U CN203201833 U CN 203201833U
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- Prior art keywords
- spiral case
- fixed
- cabinet
- impeller
- side wall
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Abstract
The utility model discloses a pipeline type ventilation centrifugal fan, which comprises a volute (1) and an outer rotor motor (2) for driving an impeller (5) in the volute (1) to rotate, wherein the outer rotor motor (2) is fixed on the side wall of the volute (1); the volute (1) is fixed in a case (3); an air outlet pipe (11) of the volute (1) is fixed on a front plate (31) of the case (3); an air outlet (311) on the front plate (31) is communicated with the air outlet pipe (11); the air inlet (12) of the volute (1) is over against a right side plate (32) of the case (3); and the case (3) is not provided with any back plate. The pipeline type ventilation centrifugal fan is simple in structure; the air outlet (311) and the air inlet of the case (3) are in the same direction, so that the case is small in size, regular in shape and is convenient to install; and meanwhile, the forward impeller (5) is adopted, so that the gas flow rate is increased, the static pressure is raised, and the air flow conveying requirement of a pipeline is met.
Description
Technical field:
The utility model relates to the ventilation equipment technical field, relates in particular a kind of pipe type ventilation centrifugal blower.
Background technique:
Existing centrifugal blower generally is from the left side of spiral case or the intake grill that is provided with of right side enters, discharge from the exhaust outlet of spiral case, general and the intake grill of the exhaust outlet of spiral case is not in same direction, its structure is not compact, the difficult occasion that is applied to narrow space, when in pipeline, installing, bother very much, connect after pipeline must being turned.Simultaneously, its profile is irregular, is inconvenient to transport and install.
And existing centrifugal blower is a lot of, and what adopt is the backward type impeller, to reduce its noise, raise the efficiency, but the gas flow rate that the backward type blade is thrown out is lower, and the dynamic pressure that gas obtains is lower, and static pressure is also lower after discharging from blower fan.
The motor of existing centrifugal blower is internal rotor type, and to be connected volume large with impeller for it, becomes large so that blower fan is whole.
The model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provide a kind of pipe type ventilation centrifugal blower, it is simple in structure, so that its volume is little, profile is regular, and is easy for installation on same direction for the exhaust outlet of cabinet and intake grill, simultaneously, adopt the forward-type impeller to improve its gas flow rate, improve static pressure, satisfy the air-flow of pipeline and carry requirement.
Technology solution of the present utility model is as follows:
A kind of pipe type ventilation centrifugal blower, the external rotor electric machine that comprises the vane rotary in spiral case and the drive spiral case, described external rotor electric machine is fixed on the spiral case sidewall, spiral case is fixed in the cabinet, the exhaust outlet pipe of spiral case is fixed on the header board of cabinet, exhaust outlet on the header board communicates with the exhaust outlet pipe, and the intake grill of spiral case is facing to the right sideboard of cabinet, cabinet plate without issue.
Described cabinet is cuboid, and it is welded to each other by left sideboard, right sideboard, top board, base plate and header board and forms; On the left side wall that contiguous block one end is fixed on the left sideboard, the other end is fixed on spiral case, form intake grill on the right side wall of spiral case, the spacing of the right side wall of spiral case and the right sideboard of cabinet is greater than 5cm.
Described impeller is the forward-type impeller, and the blade profile of impeller is circular-arc, and the bending direction of blade is identical with the vane rotary direction.
Described external rotor electric machine is fixed on the left side wall of spiral case, is fixed with safety cover on the outer wall of the left side wall of spiral case, and the afterbody of external rotor electric machine is in safety cover.
The beneficial effects of the utility model are:
1, it is simple in structure, so that its volume is little, profile is regular, and is easy for installation on same direction for the exhaust outlet of cabinet and intake grill.
2, its impeller adopts the forward-type impeller to improve its gas flow rate, improves static pressure, satisfies the air-flow of pipeline and carries requirement.
3, its adopts external rotor electric machine can dwindle external rotor electric machine to be connected volume after the connection with impeller, the overall volume of also just having dwindled blower fan, and simultaneously, the safety cover on the outer wall of the left side wall of spiral case can be protected external rotor electric machine, and it is not sustained damage.
Description of drawings:
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the angle perspective view of changing of the present utility model;
Fig. 3 is the partial sectional view of backsight state of the present utility model;
Fig. 4 is the partial sectional view that state is looked on the right side of the present utility model;
Fig. 5 is the partial sectional view of overlooking state of the present utility model.
Embodiment:
Embodiment: see shown in Fig. 1 to 5, a kind of pipe type ventilation centrifugal blower, comprise spiral case 1 and drive the external rotor electric machine 2 that the impeller 5 in the spiral case 1 rotates, described external rotor electric machine 2 is fixed on spiral case 1 sidewall, spiral case 1 is fixed in the cabinet 3, and the exhaust outlet pipe 11 of spiral case 1 is fixed on the header board 31 of cabinet 3, and the exhaust outlet 311 on the header board 31 communicates with exhaust outlet pipe 11, the intake grill 12 of spiral case 1 is facing to the right sideboard 32 of cabinet 3, cabinet 3 plates without issue.
Described cabinet 3 is cuboid, and it is welded to each other by left sideboard 33, right sideboard 32, top board, base plate and header board 31 and forms; Contiguous block 4 one ends are fixed on the left sideboard 33, the other end is fixed on the left side wall of spiral case 1, form intake grill 12 on the right side wall of spiral case 1, and the spacing of the right sideboard 32 of the right side wall of spiral case 1 and cabinet 3 is greater than 5cm.
Described impeller 5 is the forward-type impeller, and blade 51 cross sections of impeller 5 are circular-arc, and the bending direction of blade 51 is identical with the vane rotary direction.
Described external rotor electric machine 2 is fixed on the left side wall of spiral case 1, is fixed with safety cover 6 on the outer wall of the left side wall of spiral case 1, and the afterbody of external rotor electric machine 2 is in safety cover 6.
Working principle: black arrow is airflow direction among the figure, because cabinet 3 plates without issue, air-flow just enters from the rear end of cabinet 3, flow into from the spacing of the right sideboard 32 of the right side wall of spiral case 1 and cabinet 3, then enter by the intake grill 12 on the right side wall of spiral case 1, rotation by impeller 5 drives rear exhaust outlet pipe 11 outflows from spiral case 1, discharges through the through hole (being exhaust outlet 311) that forms on the header board 31.
The intake grill 12 of cabinet 3 and exhaust outlet 311 are on same direction like this, so that its volume is little, and cabinet 3 is cuboid, its profile rule, convenient carrying and installation.Impeller 5 is the forward-type impeller, improves its gas flow rate, improves static pressure.
Claims (4)
1. pipe type ventilation centrifugal blower, comprise spiral case (1) and drive the external rotor electric machine (2) that the impeller (5) in the spiral case (1) rotates, it is characterized in that: described external rotor electric machine (2) is fixed on spiral case (1) sidewall, spiral case (1) is fixed in the cabinet (3), the exhaust outlet pipe (11) of spiral case (1) is fixed on the header board (31) of cabinet (3), exhaust outlet (311) on the header board (31) communicates with exhaust outlet pipe (11), the intake grill (12) of spiral case (1) is facing to the right sideboard (32) of cabinet (3), and cabinet (3) is plate without male offspring.
2. described a kind of pipe type ventilation centrifugal blower according to claim 1, it is characterized in that: described cabinet (3) is cuboid, and it is welded to each other by left sideboard (33), right sideboard (32), top board, base plate and header board (31) and forms; Contiguous block (4) one ends are fixed on the left sideboard (33), the other end is fixed on the left side wall of spiral case (1), form intake grill (12) on the right side wall of spiral case (1), the spacing of the right sideboard (32) of the right side wall of spiral case (1) and cabinet (3) is greater than 5cm.
3. described a kind of pipe type ventilation centrifugal blower according to claim 1, it is characterized in that: described impeller (5) is the forward-type impeller, and blade (51) cross section of impeller (5) is circular-arc, and the bending direction of blade (51) is identical with the vane rotary direction.
4. described a kind of pipe type ventilation centrifugal blower according to claim 1; it is characterized in that: described external rotor electric machine (2) is fixed on the left side wall of spiral case (1); be fixed with safety cover (6) on the outer wall of the left side wall of spiral case (1), the afterbody of external rotor electric machine (2) is in safety cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163207 CN203201833U (en) | 2013-04-03 | 2013-04-03 | Pipeline type ventilation centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163207 CN203201833U (en) | 2013-04-03 | 2013-04-03 | Pipeline type ventilation centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201833U true CN203201833U (en) | 2013-09-18 |
Family
ID=49145944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320163207 Expired - Fee Related CN203201833U (en) | 2013-04-03 | 2013-04-03 | Pipeline type ventilation centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747495A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Forward type centrifugal fan blade, centrifugal fan and air conditioner of centrifugal fan |
| CN106801680A (en) * | 2015-11-26 | 2017-06-06 | 吉林雷赞风机制造有限公司 | A kind of novel centrifugal type firefighting fan |
| CN107166513A (en) * | 2016-03-07 | 2017-09-15 | 青岛海尔空调器有限总公司 | Indoor apparatus of air conditioner |
-
2013
- 2013-04-03 CN CN 201320163207 patent/CN203201833U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747495A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Forward type centrifugal fan blade, centrifugal fan and air conditioner of centrifugal fan |
| CN106801680A (en) * | 2015-11-26 | 2017-06-06 | 吉林雷赞风机制造有限公司 | A kind of novel centrifugal type firefighting fan |
| CN107166513A (en) * | 2016-03-07 | 2017-09-15 | 青岛海尔空调器有限总公司 | Indoor apparatus of air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20160403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |