CN202768471U - Cross-flow fan blade - Google Patents
Cross-flow fan blade Download PDFInfo
- Publication number
- CN202768471U CN202768471U CN201220451445.8U CN201220451445U CN202768471U CN 202768471 U CN202768471 U CN 202768471U CN 201220451445 U CN201220451445 U CN 201220451445U CN 202768471 U CN202768471 U CN 202768471U
- Authority
- CN
- China
- Prior art keywords
- ring
- shaped
- circular
- flow fan
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an air-conditioning accessory. Cross-flow fan blade is formed by connecting of multiple median segments, and the median segments are formed by integral injection molding of a circular-ring-shaped wheel tray and multiple blades. One ends of the blades are integrally connected with the back of the circular-ring-shaped wheel tray, multiple blade installation grooves are arranged on the front of the circular-ring-shaped wheel tray, and the number of the blade installation grooves is equal to the number of the blades. The circular-ring-shaped wheel tray is composed of circular-ring-shaped installation trays and ring-shaped strengthening ribs, the outer sides of the ring-shaped strengthening ribs are integrally connected with the inner sides of the circular-ring-shaped installation trays, and the blade installation grooves are arranged on the faces of the circular-ring-shaped installation trays. The ring-shaped strengthening ribs and the circular-ring-shaped installation trays are arranged in a step-shaped mode. The cross-flow fan blade has the advantages that the structure is novel, impact resistance strength of the cross-flow fan blade is at least improved by 7%, and the height of dropping resistance is at least improved by 0.3meter.
Description
Technical field
The utility model relates to a kind of air conditioner parts, especially a kind of through-flow fan blade.
Background technique
Through-flow fan blade is one of accessory important in the air-conditioning, process by saving ultrasonic welding in a plurality of, middle joint is made of circular wheel disc and polylith blade integrated injection molding, blade one end and the circular wheel disc back side are connected as a single entity, circular wheel disc front is provided with a plurality of blades installation grooves, and the quantity of blades installation groove is identical with blade quantity.The deficiency that existing through-flow fan blade exists is that impact strength is low, falls easy damage.
Summary of the invention
The purpose of this utility model is in order to solve existing through-flow fan blade above shortcomings, to provide a kind of novel structure, through-flow fan blade excellent in cushion effect.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of through-flow fan blade, connected and composed by a plurality of middle joints, middle joint is made of circular wheel disc and polylith blade integrated injection molding, blade one end and the circular wheel disc back side are connected as a single entity, circular wheel disc front is provided with a plurality of blades installation grooves, the quantity of blades installation groove is identical with blade quantity, described circular wheel disc is made of ring mounting disc and ring stiffener, the inboard of the outside of ring stiffener and ring mounting disc is connected as a single entity, the blades installation groove is arranged on the card of ring mounting disc, and ring stiffener and ring mounting disc are step-like arrangement, be that the ring stiffener vis-a-vis protrudes in ring mounting disc right-side-out, the ring stiffener back side concaves with respect to the ring mounting disc back side, the thickness of described ring stiffener is 14%-25% of circular wheel disc width, and the width of ring stiffener is 12.5%-20% of circular wheel disc width.
Adopted a kind of through-flow fan blade of above-mentioned technological scheme, described circular wheel disc is made of ring mounting disc and ring stiffener, the annular outboard face of ring stiffener and the annular inboard face of ring mounting disc are connected as a single entity, the blades installation groove is arranged on the card of ring mounting disc, and ring stiffener and ring mounting disc are step-like arrangement, its advantage is novel structure, and the through-flow fan blade impact strength improves 7% at least, and anti-drop height improves 0.3m at least.
Description of drawings
Fig. 1: embodiment's of the present utility model structural representation.
Fig. 2: embodiment's of the present utility model cross-sectional view.
Fig. 3: the enlarged diagram at A place among Fig. 2.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3 embodiment of the present utility model is made a detailed explanation.
Such as Fig. 1, Fig. 2 and a kind of through-flow fan blade shown in Figure 3, connected and composed by a plurality of middle joints, middle joint is made of circular wheel disc 2 and polylith blade 1 integrated injection molding, blade 1 one ends and circular wheel disc 2 back sides are connected as a single entity, circular wheel disc 2 fronts are provided with a plurality of blades installation grooves 22, the quantity of blades installation groove 22 is identical with blade 1 quantity, and blade 1 generally is the 31-35 sheet.
During production, the blade of joint inserts in the blades installation groove that saves in the next one and carries out ultrasonic welding in upper one.
Claims (1)
1. through-flow fan blade, connected and composed by a plurality of middle joints, middle joint is made of circular wheel disc and polylith blade integrated injection molding, blade one end and the circular wheel disc back side are connected as a single entity, circular wheel disc front is provided with a plurality of blades installation grooves, the quantity of blades installation groove is identical with blade quantity, it is characterized in that described circular wheel disc is made of ring mounting disc and ring stiffener, the inboard of the outside of ring stiffener and ring mounting disc is connected as a single entity, the blades installation groove is arranged on the card of ring mounting disc, and ring stiffener and ring mounting disc are step-like arrangement, be that the ring stiffener vis-a-vis protrudes in ring mounting disc right-side-out, the ring stiffener back side concaves with respect to the ring mounting disc back side, the thickness of described ring stiffener is 14%-25% of circular wheel disc width, and the width of ring stiffener is 12.5%-20% of circular wheel disc width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451445.8U CN202768471U (en) | 2012-09-06 | 2012-09-06 | Cross-flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451445.8U CN202768471U (en) | 2012-09-06 | 2012-09-06 | Cross-flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768471U true CN202768471U (en) | 2013-03-06 |
Family
ID=47775051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220451445.8U Expired - Lifetime CN202768471U (en) | 2012-09-06 | 2012-09-06 | Cross-flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768471U (en) |
-
2012
- 2012-09-06 CN CN201220451445.8U patent/CN202768471U/en not_active Expired - Lifetime
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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: 20130306 |
|
| CX01 | Expiry of patent term |