CN115789837A - Pull-folding type filter screen structure, filter and electrical equipment - Google Patents
Pull-folding type filter screen structure, filter and electrical equipment Download PDFInfo
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- CN115789837A CN115789837A CN202211597176.0A CN202211597176A CN115789837A CN 115789837 A CN115789837 A CN 115789837A CN 202211597176 A CN202211597176 A CN 202211597176A CN 115789837 A CN115789837 A CN 115789837A
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Abstract
The invention provides a folding type filter screen structure, a filter and electrical equipment, relates to the technical field of air purification, and solves the technical problems that the difference between the inward folding distance and the outward folding distance of a filter screen in the prior art is large, so that the resistance is large, and the power consumption of the whole machine is increased. The filter screen base body is folded along the axial direction which is vertical to the flowing direction of fluid to be filtered to form a filter unit of the filter screen body, and then the resistance of the fluid passing through the filter screen body is reduced. The invention is used for providing a telescopic filter screen structure, a filter and electrical equipment which can reduce the resistance of a filter screen and reduce the power consumption.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a folding type filter screen structure, a filter and electrical equipment.
Background
Total heat exchange fresh air purification machine is a production born under the more serious condition of air pollution, its aim at guarantees the fresh degree of family's room air, the user still can carry out the exchange of indoor outer air under the condition of not windowing, outdoor fresh air of effectual introduction filters, filter harmful substance such as pm2.5, the healthy fresh outdoor air of introduction, simultaneously with indoor air exhaust, thereby reach a function of taking a breath, guarantee the circulation of air.
The filter screen plays an especially important role in the fresh air system, and is responsible for intercepting impurities and harmful substances in the filtered air, and can also be added with other functions of deodorizing, sterilizing and the like under the requirements of users. Its main function is realized in its special filter screen paper, and the air just can reach the effect of purification behind the filter screen paper, and the filter screen on the existing market all is through folding the area of contact who increases air and filter screen through the mode of difference with single-layer filter screen paper to reach better filter effect.
However, the filtering effect of the filter paper folded in different ways is different greatly, for example, as shown in fig. 1, after the filter paper is folded, the conventional filter screen is enclosed into a cylindrical structure along the folding direction of the filter paper, and with the filter screen folded in this way, the difference between the inward folding distance and the outward folding distance is larger, which results in larger resistance and larger power consumption of the whole machine.
The applicant has found that the prior art has at least the following technical problems: the difference between the inward folding distance and the outward folding distance of the filter screen is large, so that the resistance is large, and the power consumption of the whole machine is increased.
Disclosure of Invention
The invention aims to provide a folding type filter screen structure, a filter and electrical equipment, and aims to solve the technical problems that the difference between the inward folding distance and the outward folding distance of a filter screen in the prior art is large, so that the resistance is large, and the power consumption of the whole machine is increased 。 The technical schemes provided by the invention can generate the schemes in a preferable wayThe technical effects are described in detail below.
In order to realize the purpose, the invention provides the following technical scheme:
the invention provides a folding filter screen structure, which comprises a filter screen body, wherein a filter screen base body is folded along an axial direction vertical to the flowing direction of fluid to be filtered to form a filtering unit of the filter screen body, so that the resistance of the fluid passing through the filter screen body is reduced.
As a further improvement of the present invention, the filter unit extends in the circumferential direction of the axis to form a cylindrical rotation body.
As a further improvement of the invention, the cross section of the revolving body is circular or elliptical.
As a further improvement of the present invention, the filter unit extends in a circumferential direction of the axis to form a circular arc shape.
As a further development of the invention, the filter element forms a semi-circle extending in the circumferential direction of the axis.
As a further development of the invention, the screen base body (2) is folded to form a W-shaped structure.
As a further development of the invention, the screen base body (2) is folded into a continuous W-shaped structure.
As a further improvement of the invention, the inward folding distance and the outward folding distance of the filter screen body are the same.
A filter comprises an upper frame, a lower frame and the telescopic filter screen structure, wherein the telescopic filter screen structure is arranged between the upper frame and the lower frame.
An electrical equipment comprises the filter, and the electrical equipment is an air conditioner, an air purifier or a fresh air system.
The invention has the beneficial effects that: according to the folding type filter screen structure, the filter and the electrical equipment, the filter screen base body is folded along the axial direction perpendicular to the flowing direction of fluid to be filtered to form the filter unit of the filter screen body, so that the difference between the inward folding distance and the outward folding distance of the filter screen body is reduced, the resistance is reduced, and the power consumption of the whole machine is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a conventional prior art screen configuration;
FIG. 2 is a schematic view of the construction of the screen of the present invention;
FIG. 3 is a cross-sectional view of a screen according to the present invention;
FIG. 4 is a schematic structural view of another embodiment of the screen of the present invention;
FIG. 5 is a resistance simulation diagram of the present invention.
In the figure 1, a filter screen body; 2. a filter screen base; 3. and a filtering unit.
Detailed Description
The contents of the present invention and the differences between the present invention and the prior art can be understood with reference to fig. 1 to 5 and the text. The technical solutions (including the preferred technical solutions) of the present invention are further described in detail by the figures and by way of listing some optional embodiments of the present invention. It should be noted that: any technical features and any technical solutions in this embodiment are one or more of various optional technical features or optional technical solutions, all the optional technical features and the optional technical solutions of the present invention cannot be exhaustively listed in this document for the sake of simplicity of description, and an implementation manner of each technical feature is not convenient to emphasize and is one of various optional implementation manners, so that a person skilled in the art should know that: any one of the technical means provided by the invention can be replaced or any two or more of the technical means or technical features provided by the invention can be combined with each other to obtain a new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the scope of the present invention, and the scope of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without inventive efforts and new technical solutions that can be obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention with each other.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be construed broadly, e.g., as being fixed or detachable or integral; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The invention provides a telescopic filter screen structure, a filter and electrical equipment, which can reduce the resistance of a filter screen and reduce the power consumption.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 5.
The invention provides a folding type filter screen structure which comprises a filter screen body, wherein a filter screen base body is folded along an axial direction vertical to the flowing direction of fluid to be filtered to form a filtering unit of the filter screen body, so that the resistance of the fluid passing through the filter screen body is reduced.
According to the folding filter screen structure provided by the invention, the filter screen base body is folded along the axial direction vertical to the flowing direction of fluid to be filtered to form the filtering unit of the filter screen body, so that the difference between the inward folding distance and the outward folding distance of the filter screen body is reduced, the resistance is reduced, and the power consumption of the whole machine is reduced.
As a further improvement of the present invention, the filter unit extends in the circumferential direction of the axis to form a cylindrical rotation body.
In the further improvement, the filtering units extend along the circumferential direction of the axis to form a cylindrical revolving body, and under the condition of similar shape, the telescopic filter screen structure provided by the invention can achieve larger filter screen unfolding area, increase dust holding capacity and prolong replacement period; in addition, the present invention provides a pleated screen construction having a somewhat reduced fold-out spacing, but a significantly increased area of the individual channels, which provides a good reduction in the resistance to airflow through the screen, while ensuring that the fold-in spacing is the same, as compared to conventional designs.
As a further improvement of the invention, the cross section of the revolving body is circular or elliptical.
As a further improvement of the present invention, the filter unit extends in a circumferential direction of the axis to form a circular arc shape.
As a further development of the invention, the filter element forms a semi-circle extending in the circumferential direction of the axis.
In this further improvement, the shape of the rotator is not limited to a cylindrical rotator, and may be a cylinder having an elliptical structure, or may be formed in a circular arc shape or a semicircular shape extending in the circumferential direction of the axis.
As a further improvement of the invention, the screen base is folded into a W-shaped configuration.
In the further improvement, the filter screen base body is folded into a W-shaped structure, so that the inward folding distance and the outward folding distance of the structure body are the same, the resistance is reduced, and the power consumption of the whole machine is reduced.
When the filter units extend along the circumferential direction of the axis to form a cylindrical revolving body, compared with the conventional type, under the condition of ensuring the same inward folding distance, the outward folding distance of the folded filter screen structure provided by the invention is reduced by a certain value, but the area of a single channel is remarkably increased, so that the resistance of airflow passing through the filter screen can be well reduced.
As a further development of the invention, the screen body is folded from the screen base into a continuous W-shaped structure.
In the further improvement, under the condition of the same shape and similarity, the folding type filter screen structure provided by the invention can achieve larger expansion area of the filter screen, increase dust holding capacity and prolong the replacement period.
As a further improvement of the invention, the inward folding distance and the outward folding distance of the filter screen body are the same.
A filter comprises an upper frame, a lower frame and the telescopic filter screen structure, wherein the telescopic filter screen structure is arranged between the upper frame and the lower frame.
An electrical equipment comprises the filter, and the electrical equipment is an air conditioner, an air purifier or a fresh air system.
Example 1:
a folding filter screen structure is shown in figures 2-3 and comprises a filter screen body 1, wherein the filter screen body 1 is folded along an axis direction perpendicular to the flowing direction of fluid to be filtered through a filter screen base body 2 to form a continuous W-shaped filter unit 3, and the filter unit extends along the circumferential direction of the axis to form a cylindrical revolving body, so that the inward folding distance and the outward folding distance of the filter screen body 1 are the same.
It should be noted that the screen body 1 may be a filter unit 3 formed by folding the screen base 2 along an axial direction perpendicular to a flowing direction of a fluid to be filtered to form a continuous W-shaped structure and extending along a circumferential direction of the axial direction to form a semicircular, circular arc or elliptical structure. As shown in fig. 4, a semicircular structure.
The height of the filter screen is set to be H, and the thickness of the filter screen is set to be D1, the outer diameter of the filter screen is set to be D2, and the inner diameter of the filter screen is set to be D2= W. The path through which the air flow passes as it passes through the screen is determined by the number of visible folds of the screen, which is n.
According to the relevant theory, the following can be obtained:
the filter screen bending distance D = π × D1/n;
the folding distance D = pi x D2/n in the filter screen;
the number of channels N = N;
single channel open area convention: s1= W × H2;
a stretching and folding type: s2= π [ (D1/2) ^2- (D2/2) ^2 ]. 2;
the expansion area Q = S N of the filter screen;
the relationship can be obtained, the more the number of the channels is, the more the unfolding area of the filter screen is, but the outward folding distance of the filter screen is reduced, the resistance of the air flow passing through the filter screen is influenced, and the power consumption of the whole machine is influenced.
Can obtain through preliminary data, when setting for the filter screen and roll over the interval unanimously, data are as shown in table 1:
TABLE 1
When the set outward folding distance is consistent, the difference of the inward folding distance is too much, the influence of wind resistance caused at the moment is too large, and the control condition needs to be changed.
When designing the folding filter screen structure, folding filter screens and conventional filter screens with several specifications are designed by setting the folding intervals in the filter screens to be consistent, and comparison data are shown in a table 2:
TABLE 2
By analyzing the data, it is possible to:
the fold-out spacing of the pleated screen construction is reduced by a certain amount while ensuring that the fold-in spacing is uniform, but the area of the individual channels is significantly increased, which provides a good reduction in the resistance to airflow through the screen.
The filter screen deployment area ratio of three sets of data: the conventional type is Q1, and the folding type is Q2
The ratios of Q2/Q1 are 1.27, 1.40 and 2.20 respectively. The filter screen has the advantages that the effect of remarkably increasing the area of the filter screen is realized, the dust holding capacity is increased, the replacement period is prolonged, and meanwhile, the problems that the filter screen resistance is large and the power consumption of the whole machine is increased due to the large difference of the folding intervals of the inner diameter filter materials and the outer diameter filter materials of the conventional cylindrical filter screen are effectively solved.
As shown in fig. 5, it can be seen from the resistance simulation of the filter screen of this embodiment that:
when wind is led to the left side from the right side of the filter screen, the filter screen can well and uniformly flow, so that the wind speed entering the unit is uniform, and the noise is effectively reduced.
A filter comprises an upper frame, a lower frame and the telescopic filter screen structure, wherein the telescopic filter screen structure is arranged between the upper frame and the lower frame.
An electrical appliance comprising a pleated filter screen construction as described above. The electrical equipment is an air conditioner or an air purifier or a fresh air system.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a formula of folding filter screen structure, characterized in that, includes filter screen body (1), filter screen base member (2) along the axis direction perpendicular with the circulation direction looks of the fluid of waiting to filter folding formation filter unit (3) of filter screen body (1), and then reduce the resistance that the fluid passes through filter screen body (1).
2. The strainable filter screen structure according to claim 1, wherein the filter unit (3) extends in the circumferential direction of the axis to form a cylindrical body of revolution.
3. The strafed filter screen structure according to claim 2 wherein the gyrorotor has a circular or elliptical cross-section.
4. A telescopic filter screen structure according to claim 1, characterised in that the filter elements (3) extend in the circumferential direction of the axis in a circular arc shape.
5. A telescopic filter screen structure according to claim 1, characterised in that the filter units (3) are formed in a semi-circular shape extending in the circumferential direction of the axis.
6. A strafed filter screen structure according to claim 1, characterised in that the screen base (2) is folded to form a W-shaped structure.
7. A lapel filter screen structure according to claim 6, characterised in that the screen base (2) is folded into a continuous W-shaped structure.
8. A strainable filter screen structure according to any of claims 1 to 7, whereby the screen body (1) has an inflected spacing which is the same as the inflected spacing.
9. A filter comprising an upper frame, a lower frame and a pleated filter screen construction according to any of claims 1-8, said pleated filter screen construction being disposed between said upper frame and said lower frame.
10. An electrical apparatus comprising a filter according to claim 9, wherein the electrical apparatus is an air conditioner or an air purifier or a fresh air system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211597176.0A CN115789837A (en) | 2022-12-12 | 2022-12-12 | Pull-folding type filter screen structure, filter and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211597176.0A CN115789837A (en) | 2022-12-12 | 2022-12-12 | Pull-folding type filter screen structure, filter and electrical equipment |
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| Publication Number | Publication Date |
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| CN115789837A true CN115789837A (en) | 2023-03-14 |
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| CN202211597176.0A Pending CN115789837A (en) | 2022-12-12 | 2022-12-12 | Pull-folding type filter screen structure, filter and electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428683A (en) * | 2023-05-29 | 2023-07-14 | 宁波市海创环能科技有限公司 | Multiple filtering type air purifier and purifying method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428683A (en) * | 2023-05-29 | 2023-07-14 | 宁波市海创环能科技有限公司 | Multiple filtering type air purifier and purifying method |
| CN116428683B (en) * | 2023-05-29 | 2023-11-14 | 宁波市海创环能科技有限公司 | Multiple filtering type air purifier and purifying method |
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