CN202914384U - Centrifugal impeller for draught fan - Google Patents
Centrifugal impeller for draught fan Download PDFInfo
- Publication number
- CN202914384U CN202914384U CN 201220620289 CN201220620289U CN202914384U CN 202914384 U CN202914384 U CN 202914384U CN 201220620289 CN201220620289 CN 201220620289 CN 201220620289 U CN201220620289 U CN 201220620289U CN 202914384 U CN202914384 U CN 202914384U
- Authority
- CN
- China
- Prior art keywords
- metal
- centrifugal impeller
- metal chassis
- chassis
- draught fan
- 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 - Lifetime
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Abstract
The utility model relates to the field of ventilation equipment. Provided is a centrifugal impeller for a draught fan. The centrifugal impeller for the draught fan comprises a metal front ring, a metal chassis and a plurality of metal blades fixed between the metal front ring and the metal centrifugal impeller. The metal front ring and the metal chassis are arranged in a parallel mode, the number of the metal blades is 6-9 slices, and each metal blade is provided with a reinforcing rib with an arc-shaped section. The centre of the metal chassis is provided with an inner groove which is arranged at the position of installing a motor outer rotor, wherein the inner groove which dents inward is used for strengthening the strength of the metal chassis. The center position of the inner groove is provided with motor mounting holes. The centrifugal impeller of the fan has the advantages of being novel in structure, reducing the thickness under the condition of guarantying the metal chassis strength so as to reduce the weight of the centrifugal impeller, and to reduce the production cost of centrifugal impeller.
Description
Technical field
The utility model relates to the ventilation equipment field, relates in particular to the centrifugal impeller that uses on a kind of blower fan.
Background technique
Existing blower fan is made of motor and centrifugal impeller, and centrifugal impeller comprises circle, metal chassis before the metal and be fixed between the two multi-disc metal blade, and motor is fixedly mounted on the bottom surface of metal chassis.The bottom surface of the metal chassis of existing mounted motor is burnishing surface, and therefore its wall thickness is very thick in order to guarantee enough intensity is arranged metal chassis.
Summary of the invention
The purpose of this utility model is the deficiency that exists in order to solve the centrifugal impeller that uses on the existing blower fan, and a kind of novel structure is provided, the centrifugal impeller that uses at the blower fan that guarantees to reduce under the metal chassis strength conditions its thickness.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
The centrifugal impeller that uses on a kind of blower fan, comprise circle, metal chassis before the metal and be fixed between the two metal blade, circle and metal chassis be arranged in parallel before the metal, metal blade is the 6-9 sheet, be equipped with the curved stiffening rib in cross section on the every metal blade, mounted motor external rotor place, described metal chassis center is provided with the inner groovy that is used for reinforcement metal chassis intensity that concaves, and the center of inner groovy is provided with the motor mounting hole.
Adopted the centrifugal impeller that uses on a kind of blower fan of above-mentioned technological scheme, mounted motor external rotor place in metal chassis center is provided with the inner groovy that is used for reinforcement metal chassis intensity that concaves, and has strengthened the intensity of metal chassis.The advantage of the centrifugal impeller that uses on this blower fan is novel structure, reduces its thickness in the situation that guarantee metal chassis intensity, has namely alleviated the weight of centrifugal impeller, has reduced the cost of production of centrifugal impeller.
Description of drawings
Fig. 1: the utility model embodiment's structural representation.
Embodiment
Below in conjunction with Fig. 1 embodiment of the present utility model is made a detailed explanation.
The centrifugal impeller that uses on a kind of blower fan as shown in Figure 1, comprise circle 1, metal chassis 2 before the metal and be fixed between the two metal blade 3, circle 1 and metal chassis 2 be arranged in parallel before the metal, and metal blade 3 is 6-9 sheets, is equipped with the curved stiffening rib in cross section 31 on the every metal blade 3.Mounted motor external rotor place, metal chassis 2 center is provided with the inner groovy 21 that is used for reinforcement metal chassis intensity that concaves, and the center of inner groovy 21 is provided with motor mounting hole 22, and motor is located on the motor mounting hole 22 during mounted motor.
Inner groovy 21 can improve the intensity of metal chassis 2, can reduce accordingly the used thickness of metal chassis 2, for example do not adopt the metal chassis of inner groovy need to use the thick metal chassis of 2mm, adopt inner groovy 21 to use later on the thick metal chassis of 1.5mm just can reach the intensity of the thick metal chassis of original 2mm.
Claims (1)
1. the centrifugal impeller that uses on the blower fan, comprise circle, metal chassis before the metal and be fixed between the two metal blade, circle and metal chassis be arranged in parallel before the metal, metal blade is the 6-9 sheet, be equipped with the curved stiffening rib in cross section on the every metal blade, it is characterized in that mounted motor external rotor place, described metal chassis center is provided with the inner groovy that is used for reinforcement metal chassis intensity that concaves, the center of inner groovy is provided with the motor mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620289 CN202914384U (en) | 2012-11-20 | 2012-11-20 | Centrifugal impeller for draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620289 CN202914384U (en) | 2012-11-20 | 2012-11-20 | Centrifugal impeller for draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914384U true CN202914384U (en) | 2013-05-01 |
Family
ID=48162703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620289 Expired - Lifetime CN202914384U (en) | 2012-11-20 | 2012-11-20 | Centrifugal impeller for draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510569A (en) * | 2016-12-21 | 2017-03-22 | 安徽天利粮油集团股份有限公司 | Eave cleaning brush convenient to control |
-
2012
- 2012-11-20 CN CN 201220620289 patent/CN202914384U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510569A (en) * | 2016-12-21 | 2017-03-22 | 安徽天利粮油集团股份有限公司 | Eave cleaning brush convenient to control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |