CN201786752U - Current-collecting device of air inlet of centrifugal fan - Google Patents
Current-collecting device of air inlet of centrifugal fan Download PDFInfo
- Publication number
- CN201786752U CN201786752U CN2010205304212U CN201020530421U CN201786752U CN 201786752 U CN201786752 U CN 201786752U CN 2010205304212 U CN2010205304212 U CN 2010205304212U CN 201020530421 U CN201020530421 U CN 201020530421U CN 201786752 U CN201786752 U CN 201786752U
- Authority
- CN
- China
- Prior art keywords
- current
- ring
- collecting device
- air inlet
- slip ring
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a current-collecting device of an air inlet of a centrifugal fan. The current-collecting device comprises a main body, wherein the main body is in a shape of a barrel which is gradually shrunken from an air inlet end to an air outlet end, and the air inlet end is provided with a ring-shaped folding edge. The height of the ring-shaped folding edge is 5-20mm. As the air inlet end of the current-collecting device is provided with the ring-shaped folding edge, the current-collecting device can be made from a thinner steel plate and can not influence the whole rigidity; and as the thinner steel plate can be pressed by a smaller pressing machine, the current-collecting device greatly reduces the material cost.
Description
Technical field
The utility model relates to a kind of ventilation equipment, relates to the slip ring of installing on a kind of centrifugal blower intake grill specifically.
Background technique
Centrifugal blower is made up of parts such as motor, casing and impellers usually, its casing has an orthogonal intake grill and an exhaust outlet usually, when the impeller of centrifugal fan is rotated by driven by motor, the gas that riddles between the blade rotates together in company with impeller, under action of centrifugal force, gas throws away from conduit between blade, and gas is transferred out by exhaust outlet.When the outflow of gas causes impeller space form vacuum, extraneous gas will enter the impeller space make-up automatically by intake grill.Because the work of not stopping work of blower fan extrudes the gas inspiration, has formed the continuous-flow of gas, thereby has formed continuous work.Usually the intake grill at casing need be provided with a slip ring, to guarantee making air-flow flow into the impeller space uniformly under the situation of loss minimum.Existing slip ring is suppressed by steel plate usually and is formed, it is shaped as the tubular that ecto-entad closes up, because slip ring need bear bigger blast, especially for relatively large number, centrifugal blower with higher blast, its slip ring need adopt thicker steel plate to make, and manufacture difficulty is bigger on the one hand for thicker steel plate, usually need the large-tonnage press to suppress, thicker on the other hand steel plate also causes the rising of cost of material.
The model utility content
For overcoming above-mentioned defective, the utility model aims to provide a kind of easy to process, can adopt the less steel plate of thickness to make to save the centrifugal blower intake grill slip ring of cost of material simultaneously.
For achieving the above object, the technical solution adopted in the utility model is: a kind of centrifugal blower intake grill slip ring, comprise body, and described body is the tubular that closes up gradually to outlet air end from air intake, and described air intake has a ring-type flanging.
The height of described ring-type flanging is the 5-20 millimeter.
Adopted centrifugal blower intake grill slip ring of the present utility model, because the air intake at slip ring is provided with a ring-type flanging, the ring-type flanging has played the effectiveness of stiffening rib, the integral rigidity of slip ring is unaffected so can adopt thin steel plate to make slip ring, simultaneously, thin steel plate can adopt less press to suppress when compression moulding, and cost of material also reduces greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1-body, 2-air intake, 3-outlet air end, 4-ring-type flanging.
Embodiment
As shown in Figure 1, the utility model discloses a kind of centrifugal blower intake grill slip ring, comprise body 1, described body 1 is the tubular that closes up gradually to outlet air end 3 from air intake 2, in sum, with existing centrifugal blower intake grill slip ring basically identical, in order to make the collection wind better effects if of slip ring, its closing in is a curved surface usually.
Innovative point of the present utility model is that mainly described air intake 2 has a ring-type flanging 4.Its ring-type flanging 4 is vertical with the plane of air intake 2 usually, owing to be provided with ring-type flanging 4, ring-type flanging 4 has played the effectiveness of stiffening rib, improved the integral rigidity of slip ring, under the prerequisite that guarantees the slip ring usage requirement, can adopt thin steel plate to make, ring-type flanging 4 can once extrude in the compacting slip ring.
According to the size of slip ring, the height of described ring-type flanging 4 is the 5-20 millimeter.Usually when slip ring hour, can adopt ring-type flanging 4, as adopt 5 millimeters than low height; When slip ring is big, needs to adopt the ring-type flanging 4 of big height, as adopt 20 millimeters.
Claims (2)
1. a centrifugal blower intake grill slip ring comprises body (1), and described body (1) is from air intake (2) to the tubular that outlet air end (3) closes up gradually, it is characterized in that described air intake (2) has a ring-type flanging (4).
2. centrifugal blower intake grill slip ring according to claim 1, the height that it is characterized in that described ring-type flanging (4) is the 5-20 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205304212U CN201786752U (en) | 2010-09-16 | 2010-09-16 | Current-collecting device of air inlet of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205304212U CN201786752U (en) | 2010-09-16 | 2010-09-16 | Current-collecting device of air inlet of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786752U true CN201786752U (en) | 2011-04-06 |
Family
ID=43818717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205304212U Expired - Fee Related CN201786752U (en) | 2010-09-16 | 2010-09-16 | Current-collecting device of air inlet of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373390A (en) * | 2014-10-29 | 2015-02-25 | 珠海格力电器股份有限公司 | Collector for air diversion, volute assembly, centrifugal fan and air conditioner |
-
2010
- 2010-09-16 CN CN2010205304212U patent/CN201786752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373390A (en) * | 2014-10-29 | 2015-02-25 | 珠海格力电器股份有限公司 | Collector for air diversion, volute assembly, centrifugal fan and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130916 |