WO2011009243A1

WO2011009243A1 - Filter and anti-dust device for computer case

Info

Publication number: WO2011009243A1
Application number: PCT/CN2009/073798
Authority: WO
Inventors: 唐兵
Original assignee: Tang Bing
Priority date: 2009-07-23
Filing date: 2009-09-08
Publication date: 2011-01-27
Also published as: CN101963830A

Abstract

A filter and anti-dust device for a computer case includes a side plate of the case (10), an exhaust fan (6), a filter shell (1), a top cover (2) and a bottom cover (3). The top cover (2) and the bottom cover (3) are fixed with a screw to form the filter shell (1), in which an air channel is set. Air inlets are set around the top cover (2). A central circular groove (12), an inner ring groove (13) and an outer ring groove (14) are set in the bottom cover (3) respectively. Air filter sponges are set in the central circular groove (12), the inner ring groove (13) and the outer ring groove (14). This structure combines triple air filter with an exhaust fan to solve a problem of purifying air in the computer case effectively, so as to prevent electronic elements of a computer from erosion of harmful dust and extend the service life of a computer. At the same time, the structure is convenient for assembling and disassembling, and easy to wash and replace the filter sponges.

Description

Computer case filter dustproof device

Technical field

The invention relates to a dustproof device for a computer, in particular to a multi-filter dustproof device for a computer case, which is particularly suitable for effective dustproofing and maintenance of a computer host and a power source which are relatively poor in environment.

Background technique

With the application and popularity of computers, computers have made people's lives and work more colorful and handy. There are a large number of dense electronic devices in the computer case. If the heat generated during operation is not removed in time, it will cause great damage, such as directly burning electronic components and affecting the service life of the computer. People have made various efforts to extend the life of the computer. One is to arrange a fan for cooling in the chassis, and the other is to use a computer case with better sealing to prevent harmful dust and moisture from entering. The electronics are protected from erosion in the cabinet. Since the computer case is not a closed body, dust in the air can easily enter the chassis from the gap of the chassis and be adsorbed on the electronic components, thereby adversely affecting the electronic components. At present, the dustproof measures for computer chassis in the market are limited to one layer of air filter. The dustproof capacity is insufficient, and the effective heat dissipation and dustproof effect is not achieved.

Summary of the invention

In view of the insufficiency of the dustproof capability of the computer case, the present invention provides a dust filter device for filtering a computer case, which uses a fan to introduce outside air into the chassis, and multiple filters are used when the air enters the chassis, thereby achieving the effect of purifying air and protecting the computer.

In order to achieve the above object, the present invention adopts the following technical solutions: A computer chassis filtering dustproof device includes a chassis side panel, an exhaust fan, an upper cover, a lower cover, and a filter housing. The upper cover and the lower cover are fixed by screws to form a filter housing, and the housing is fixed to the side panel of the chassis equipped with the exhaust fan. An air passage is arranged in the filter housing, and an air inlet is arranged around the upper cover, and a central circular groove, an inner ring groove and an outer ring groove are respectively arranged in the lower cover. The outer side of the outer ring groove communicates with the air inlet, and the inner side of the outer ring groove communicates with the outer side of the inner ring groove. The inner side of the inner ring groove communicates with the central circular groove through a central air passage in the middle of the filter housing. Air filter bodies are installed in the central circular groove, the inner ring groove and the outer ring groove, respectively.

The exhaust fan is disposed on the inner surface of the side panel of the chassis, and the air inlet of the exhaust fan is positioned at the central circular groove. The shape and size of the air filter body in the central circular groove, the inner ring groove and the outer ring groove correspond to the shape and size of the central circular groove and the inner and outer annular grooves. The number of ring grooves filled with the air filter body is one or more. One or two filter housings filled with air filters can be placed on the side panels of the chassis.

The air filter body is a plastic sponge or a plant fiber filter cotton. The upper and lower covers of the housing are integrally injection molded.

The filtering dustproof device of the invention is suitable for a power supply chassis or other electrical equipment chassis that requires ventilation to cool and remove dust. When the air is exhausted, the air enters from the air inlet, is filtered by the air filter body in the outer ring groove, enters along the air passage between the inner and outer ring grooves, is filtered by the air filter body in the inner ring groove, and then is filtered from the central air in the middle of the filter housing. The channel enters the filter in the central circular tank for filtration. The triple-filtered purified air finally enters the cabinet, effectively preventing dust from eroding the electronic components inside the chassis. The air filter is arranged around the filter casing. Under the action of the fan, the air in the casing generates a positive pressure, and the air in the casing through the cooling electronic component is discharged from the casing exhaust port or the slot. The fan blade rotates and the airflow flows in the filter housing like a turbine operation mode, the airflow is smooth, and the air filter dust removal effect is good.

The invention has the beneficial effects that: compared with the conventional dustproof device, the dustproof device adopts a triple sponge filtering structure, and sequentially filters the different dense density filter sponges from the periphery to the central portion to effectively purify the entry. The air inside the chassis ensures that the electronic components inside the chassis are protected from dust, which greatly improves the dustproof effect that can not be achieved by conventional dustproof devices, thereby improving the service life of electronic components. At the same time, the dustproof device is convenient to assemble and disassemble, and is convenient for cleaning and replacing the air filter body. DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

Figure 2 is a schematic view showing the structure of the filter housing of the present invention which is not incorporated in the air filter body.

Figure 3 is an exploded view of the dustproof device of the present invention.

In the figure, 1. filter housing, 2. upper cover, 3. lower cover, 4. air inlet, 5. central air passage, 6. exhaust fan, 7. central filter body, 8. outer ring filter body, 9. Inner ring filter, 10. Chassis side plate, 11. Screw hole, 12. Center circular groove, 13. Outer ring groove, 14. Inner ring groove, the arrow in the figure indicates the wind direction. detailed description

The invention will be further described in detail below with reference to the accompanying drawings.

As shown in Figures 1-3, the upper cover 2 and the lower cover 3 are fixed by the screw holes 11 to form a filter housing 1, and the filter housing 1 is provided with an air passage. The periphery of the upper cover 2 is provided with an air inlet 4, and the lower cover is provided with a central circular groove 12, an outer ring groove 13 and an inner ring groove 14, respectively. The central filter body 7 is placed in the central circular groove 12, the outer ring filter body 8 is disposed in the outer ring groove 13, and the inner ring filter body 9 is disposed in the inner ring groove 14. The filter housing 1 equipped with an air filter is fixed to the chassis side panel 10 on which the exhaust fan 6 is mounted, and the air inlet of the exhaust fan 6 is positioned at the center circular groove 12.

When the air is exhausted, the exhaust fan operates, and the outside air enters the outer ring filter body 8 through the air inlet 4 around the upper cover 2. After being filtered by the outer ring filter 8, air is introduced into the inner ring filter 9 through the air passage between the inner ring groove 14 and the outer ring groove 13 for filtration. Thereafter, the air is again filtered from the central air passage 5 in the middle of the filter housing 1 into the central filter body 7 in the central circular groove 12. The triple-filtered purified air finally enters the chassis, effectively preventing harmful dust from entering the chassis and adversely affecting the electronic components in the chassis, thereby prolonging the service life of the computer.

Claims

1. A computer chassis filtering dustproof device, comprising a side panel of a chassis, a suction fan, a filter housing, an upper cover and a lower cover, wherein the upper cover and the lower cover are fixed by screws to form a filter housing, and the filter housing is disposed on the side panel of the chassis The upper part is characterized in that: a central air passage (5) is arranged in the filter housing (1), an air inlet (4) is arranged around the upper cover (2), and a central circular groove (12) is respectively arranged on the lower cover (3). The inner ring groove (14) and the outer ring groove (13), the outer ring groove (13) is connected to the air inlet (4), and the outer ring groove (13) is connected to the inner side of the inner ring groove (14). The inner side of the ring groove (14) communicates with the central circular groove (12) through a central air passage (5) in the middle of the filter housing; air filter bodies are respectively installed in the central circular groove and the inner and outer ring grooves.

2. The dust filter device according to claim 1, wherein: the central filter body (7) in the central circular groove has a shape and a size corresponding to the shape and size of the central circular groove; The shape and size of the ring filter (8) corresponds to the shape and size of the outer ring groove; the inner ring filter in the inner ring groove

The shape and size of (9) correspond to the shape and size of the inner ring groove.

The dust filter device according to claim 1, wherein the number of the ring grooves in which the filter housing is filled with the air filter body is one or more.

4. The dust filter device according to claim 1, wherein the air filter body is a plastic sponge or a vegetable fiber filter cotton.

5. The dust filter device according to claim 1, wherein: one or two filter housings are disposed on the side panel of the chassis, and the central circular groove and the inner and outer ring grooves in the filter housing are filled with air. Filter body.

6. The dust filter device according to claim 1, wherein: the exhaust fan is disposed in the side panel of the chassis, and the air inlet of the exhaust fan is directly opposite to the central circular groove.

7. The dust filter device according to the cross-claim requirement i, wherein: the upper cover and the lower cover of the housing are respectively injection molded.

8. The dust filter device according to claim 1, wherein the dust filter device is suitable for a power supply chassis or an electrical appliance chassis that requires ventilation, temperature reduction and dustproof.