CN202746041U - Air filter shell structure with high plane modal frequency - Google Patents
Air filter shell structure with high plane modal frequency Download PDFInfo
- Publication number
- CN202746041U CN202746041U CN 201220419983 CN201220419983U CN202746041U CN 202746041 U CN202746041 U CN 202746041U CN 201220419983 CN201220419983 CN 201220419983 CN 201220419983 U CN201220419983 U CN 201220419983U CN 202746041 U CN202746041 U CN 202746041U
- Authority
- CN
- China
- Prior art keywords
- air filter
- enclosure body
- stiffening rib
- groove
- filter housing
- 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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Abstract
The utility model relates to an air filter shell structure with high plane modal frequency. The air filter shell structure with the high plane modal frequency comprises a shell body, wherein an outer reinforcing rib and inner reinforcing rib are arranged on the shell body, and a groove which can enable the inner reinforcing rib to extend to the outer portion of the shell body is arranged in the outer surface of the shell body. Strike of the groove is the same with the strike of the inner reinforcing rib. Compared with the prior art, the air filter shell structure with the high plane modal frequency has the advantages of being wide in usage range, simple in structure, obvious in reinforcing effect and the like.
Description
Technical field
The utility model relates to a kind of air filter housing structure, especially relates to the high air filter housing structure of a kind of plane model frequency.
Background technique
At present, there is the excessive problem of radiated noise in many air filter systems, main cause be consistent with the engine ignition frequency when air filter housing plane model frequency or near the time, resonance phenomenon occurs in air filter housing plane, causes larger radiated noise.Existing air filter housing adopts reinforcing rib structure more, to improve air filter housing k level model frequency, to avoid resonance.But on the larger plane of some areas, because large plane self natural frequency is low, need intensive stiffening rib just can reach designing requirement.Overstocked stiffening rib can increase the use amount of material, and increases demoulding difficulty.
The model utility content
The purpose of this utility model is exactly to provide the high air filter housing structure of plane model frequency that a kind of using scope is wide, simple in structure, stiffening effect is outstanding for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
The air filter housing structure that a kind of plane model frequency is high, comprise enclosure body, this enclosure body is provided with outer stiffening rib and interior stiffening rib, it is characterized in that, described enclosure body outer surface is provided with the groove that makes interior stiffening rib extend to the enclosure body outside, and this groove moves towards identical with interior stiffening rib.
Described groove is strip structure.
Stiffening rib top in the described groove is concordant with the enclosure body surface.
Also be provided with fixed support on the described enclosure body.
Compared with prior art, the utlity model has following advantage:
1, using scope is wide: this structure also can be used for the suddenly place of the needs raising such as nurse hertz resonant cavity surface plane model frequency except can be used for the air filter surface of shell.
2, simple in structure: can significantly not increase die cost, and the use amount of material.
3, structural strengthening is remarkably productive: can effectively improve the natural frequency on plane.
Description of drawings
Fig. 1 is outer surface structure schematic diagram of the present utility model;
Fig. 2 is inner surface structure schematic diagram of the present utility model;
Fig. 3 is groove outer surface structure schematic diagram of the present utility model;
Fig. 4 is groove inner surface structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
Shown in Fig. 1-4, the air filter housing structure that a kind of plane model frequency is high, comprise enclosure body, this enclosure body is provided with outer stiffening rib 1 and interior stiffening rib 4, described enclosure body outer surface is provided with the groove 2 that makes interior stiffening rib extend to the enclosure body outside, and this groove moves towards identical with interior stiffening rib.Also be provided with fixed support 3 on the described enclosure body.
Described groove is strip structure.Stiffening rib 5 tops in the described groove are concordant with the enclosure body surface, and like this, this structure does not change air filter housing outer surface size, can not interfere with peripheral part.
On the one hand, increase strip groove on the enclosure body surface, can improve the plane natural frequency; On the other hand, by the stiffening rib of air filter shell inner surface is extended to outer surface by groove, make inside and outside both sides, this surface that stiffening rib be arranged, also can improve the natural frequency on plane.
Claims (4)
1. air filter housing structure that the plane model frequency is high, comprise enclosure body, this enclosure body is provided with outer stiffening rib and interior stiffening rib, it is characterized in that, described enclosure body outer surface is provided with the groove that makes interior stiffening rib extend to the enclosure body outside, and this groove moves towards identical with interior stiffening rib.
2. the air filter housing structure that kind plane model frequency is high according to claim 1 is characterized in that, described groove is strip structure.
3. the air filter housing structure that kind plane model frequency is high according to claim 1 is characterized in that, the stiffening rib top in the described groove is concordant with the enclosure body surface.
4. the air filter housing structure that kind plane model frequency is high according to claim 1 is characterized in that, also is provided with fixed support on the described enclosure body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419983 CN202746041U (en) | 2012-08-22 | 2012-08-22 | Air filter shell structure with high plane modal frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419983 CN202746041U (en) | 2012-08-22 | 2012-08-22 | Air filter shell structure with high plane modal frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746041U true CN202746041U (en) | 2013-02-20 |
Family
ID=47705445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220419983 Expired - Fee Related CN202746041U (en) | 2012-08-22 | 2012-08-22 | Air filter shell structure with high plane modal frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746041U (en) |
-
2012
- 2012-08-22 CN CN 201220419983 patent/CN202746041U/en not_active Expired - Fee Related
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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: 20130220 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |