CN201991825U - Median segment part of blade-improved cross flow fan - Google Patents
Median segment part of blade-improved cross flow fan Download PDFInfo
- Publication number
- CN201991825U CN201991825U CN201120076540XU CN201120076540U CN201991825U CN 201991825 U CN201991825 U CN 201991825U CN 201120076540X U CN201120076540X U CN 201120076540XU CN 201120076540 U CN201120076540 U CN 201120076540U CN 201991825 U CN201991825 U CN 201991825U
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- China
- Prior art keywords
- blade
- fan
- fan blades
- face
- middle plate
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- 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
A median segment part of a blade-improved cross flow fan comprises annular middle plates and fan blades. The middle plates and the fan blades are combined to a whole, one end face of each middle plate is connected fixedly with one fan blade, and the other end face of each middle plate is provided with an inserting groove for one fan blade of another median segment. The median segment part is characterized in that at the junction of an arc end face of the radial outer side of each middle plate and an outer arc face of the fan blade, each fan blade is arranged on a plane along the length direction of the fan blades. By using the structure, as soon as the fan blades are crashed, striking force can be decentralized by the plane along the length direction of the fan blades, thereby obtaining fan blade-protection effects, improving conformity rate of the fan blades and reducing manufacture cost of the fan blades.
Description
Technical field
The utility model relates to a kind of axial-flow fan, especially the middle joint loose mail of through-flow fan blade sheet.
Background technique
Prior art as shown in Figure 4, saves the middle plate that loose mail comprises ring in a kind of through-flow fan blade sheet at present, blade 1, and middle plate and blade 1 one-body molded making, middle plate 1 one end faces and blade 1 are fixedly connected, and the embedded groove of the blade of joint loose mail in another is arranged on other end.The circumferential two ends of described blade 1 are curved, and existing problems are: when carrying out drop test orWhen fan blade is subjected to the collision of extraneous power
,Cause blade breach to occur, thereby cause fan blade breakage or outward appearance defective, cause fan blade defective, cause the fan blade cost to increase
Summary of the invention
The purpose of this utility model is: a kind of middle joint loose mail that improves the axial-flow fan of blade is provided, and it can decompose striking force in the moment that blade is collided, thereby plays the effect of protection blade.
The utility model is achieved in that a kind of middle joint loose mail that improves the axial-flow fan of blade, the middle plate and the blade that comprise ring, in plate and blade is one-body molded makes, middle plate one end face is connected with vanes fixed, the embedded groove of the blade of joint loose mail is arranged on the other end in another, it is characterized in that: described blade is arranged in the curved end of radial outside of plate and the outer arced surface intersection of blade has along the plane of length of blade direction.
A kind of middle joint loose mail that improves the axial-flow fan of blade of the utility model, owing to adopt such structure,In the moment of fan blade collision,
Plane along the length of blade directionCan disperse striking force, play the effect of protection blade, can improve the fan blade up-to-standard rate like this and reduce the fan blade cost of production
Description of drawings
Fig. 1 is the utility model plan view.
Fig. 2 is the enlarged view of the utility model blade.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the plan view of blade in the prior art.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of middle joint loose mail that improves the axial-flow fan of blade comprises the middle plate 2 and the blade 1 of ring, middle plate 2 and blade 1 one-body molded making, middle plate 2 one end faces are fixedlyed connected with blade 1, and the embedded groove of the blade of joint loose mail in another is arranged on other end;
As Fig. 1, Fig. 2, shown in Figure 3, outer arced surface 12 intersections that described blade 1 is arranged in the curved end of radial outside of plate 2 and blade 1 have the plane 13 along the length of blade direction.
Above-described only is preferential mode of execution of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the situation that does not break away from the utility model principle, can also make some improvement and modification, this also is considered as protection domain of the present utility model.
Claims (1)
1. middle joint loose mail that improves the axial-flow fan of blade, the middle plate and the blade that comprise ring, in plate and blade is one-body molded makes, middle plate one end face is connected with vanes fixed, the embedded groove of the blade of joint loose mail is arranged on the other end in another, it is characterized in that: described blade is arranged in the curved end of radial outside of plate and the outer arced surface intersection of blade has along the plane of length of blade direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120076540XU CN201991825U (en) | 2011-03-22 | 2011-03-22 | Median segment part of blade-improved cross flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120076540XU CN201991825U (en) | 2011-03-22 | 2011-03-22 | Median segment part of blade-improved cross flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991825U true CN201991825U (en) | 2011-09-28 |
Family
ID=44668314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120076540XU Expired - Lifetime CN201991825U (en) | 2011-03-22 | 2011-03-22 | Median segment part of blade-improved cross flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991825U (en) |
-
2011
- 2011-03-22 CN CN201120076540XU patent/CN201991825U/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan Sunwill Electric Appliance Co Ltd Assignor: Guangdong Sunwill Precision Plastic Co., Ltd. Contract record no.: 2012440000263 Denomination of utility model: Median segment part of blade-improved cross flow fan Granted publication date: 20110928 License type: Exclusive License Record date: 20120531 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |