CN101769270B

CN101769270B - Method for reducing dust absorption by fan of casing and casing device with dust removal device

Info

Publication number: CN101769270B
Application number: CN2009100000316A
Authority: CN
Inventors: 施志宏; 陈明智
Original assignee: Wistron Corp
Current assignee: Wistron Corp
Priority date: 2009-01-05
Filing date: 2009-01-05
Publication date: 2012-02-08
Anticipated expiration: 2029-01-05
Also published as: CN101769270A

Abstract

The invention relates to a method for reducing dust adsorption of a shell fan and a shell device with a dust removal device. Specifically, the casing device with the dust removing device comprises a casing, a fan and the dust removing device. The housing defines a gas passage. The fan is arranged in the casing and positioned at the tail end of the air channel, and is used for exhausting air out of the casing. The dust removing device comprises an airflow interference component and an adhesion component. The air flow interference component is arranged in the shell and positioned at the upstream of the fan and used for interfering the air flow flowing to the fan. The adhesion component is arranged at the downstream of the airflow interference component and is used for adhering dust which is entrained by the airflow and falls when the airflow is interfered. According to the invention, through the design that the adhesion assembly is positioned at the upstream of the fan and the airflow interference assembly is positioned at the upstream of the adhesion assembly, the airflow interference assembly interferes the passing airflow, so that dust carried by the airflow falls on the adhesion assembly and is adhered, and the aim of reducing dust adsorption of the fan is achieved.

Description

Reduce the method and casing device of case fan absorption dust with dust removal apparatus

Technical field

The present invention relates to a kind of dust removal apparatus, particularly relate to a kind of casing device with dust removal apparatus that can reduce the dust absorption of fan.

Background technique

Present notebook computer; Because the speed of arithmetic processor is more and more faster, the heat that is produced is also more and more, if do not take away heat rapidly internally; Can have a strong impact on the stable of system operation, even can be because overheated and produce the phenomenon of hang-up.The radiating mode that present industry generally adopts is to utilize radiating module (heat pipe adds radiating fin) and the forced convection radiating mode that the fan collocation forms to dispel the heat.

Consult Fig. 1; When fan 11 rotates; Casing 12 outside gases are brought into the roof 121 and the gas channel 13 that diapire 122 is defined of casing 12 by wind inlet 123, gas direction shown in arrow is flowed in gas channel 13, are discharged from fan 11 places at last.

But, when the gas of outside gets into casing 12, can bring dust into gas channel 13 concomitantly, and then be adsorbed in fan 11, so fan 11 after long-time running, owing to adsorbed a large amount of dusts, can reduce the usefulness that it extracts hot blast out.

Summary of the invention

Therefore, the object of the invention promptly is to provide a kind of method that can reduce case fan absorption dust.

Another object of the present invention promptly is to provide a kind of casing device with dust removal apparatus that can reduce the dust absorption of fan.

So the method for reduction case fan absorption dust of the present invention comprises following steps:

Steps A: be provided with one and be positioned at this fan upstream end in the casing of fan one interference in air flow assembly is set, flow to the air-flow of this fan in order to interference; And

Step B: be provided with one at this interference in air flow assembly downstream part and stick assembly, in order to stick the dust that receives this air-flow to carry secretly and when this air-flow is disturbed, fall.

Preferably, in this step B, be to use a two-sided adhesive tape to stick assembly as this.

Preferably, in this steps A, be to use a lamellar body as this interference in air flow assembly and be that this interference in air flow assembly is obliquely installed.

Casing device with dust removal apparatus of the present invention comprises a casing, a fan and a dust removal apparatus.This casing defines a gas channel.This fan is arranged in this casing and is positioned at this gas channel end, in order to gas is discharged this casing.This dust removal apparatus comprises that an interference in air flow assembly and sticks assembly.This interference in air flow assembly is arranged in this casing and is positioned at this fan upper reaches, flows to the air-flow of this fan in order to interference.This sticks assembly and is arranged at this interference in air flow assembly downstream part, in order to stick the dust that receives this air-flow to carry secretly and when this air-flow is disturbed, fall.

Preferably, this interference in air flow assembly has one along plane of inclination that the direction of this gas flow tilts.

Preferably, this interference in air flow assembly is one to be obliquely installed the lamellar body in this internal face, and this plane of inclination is this sheet surface.

Preferably, this sticks assembly and has stickiness towards a side of this gas channel.

Preferably, this to stick assembly be a two-sided adhesive tape.

In one embodiment of the invention, this casing comprises a housing and a movable plate, and this housing has an opening, and this movable plate is incorporated into this housing separably and covers this opening, and this sticks the internal face that assembly is connected in this movable plate.In another embodiment of the present invention; This casing comprises a housing and a movable plate; This housing has an opening, and this movable plate is incorporated into this housing separably and covers this opening, and this interference in air flow assembly and this stick the internal face that assembly all is connected in this movable plate.And preferably, this interference in air flow assembly and this movable plate are formed in one.

Effect of the present invention: stick by this that assembly is positioned at these fan upper reaches and this interference in air flow assembly is positioned at the design that this sticks the assembly upper reaches; The air-flow that this interference in air flow assembly is passed through in order to interference; Stick assembly and attached to this and stick assembly thereby make the dust that carried secretly by air-flow fall within this, reach the purpose of the dust absorption that reduces this fan.

Description of drawings

Fig. 1 is a schematic representation, and the assembled relation of a known casing and a fan is described;

Fig. 2 is a schematic representation, and first preferred embodiment with casing device of dust removal apparatus of the present invention is described;

Fig. 3 is a schematic representation, and second preferred embodiment with casing device of dust removal apparatus of the present invention is described; And

Fig. 4 is a flow chart, and the method for reduction case fan absorption dust of the present invention is described.

The primary clustering symbol description:

2 ... Casing device 5 ... Dust removal apparatus

3 ... Casing 51 ... Stick assembly

31 ... Gas channel 511 ... The side

32 ... Housing 52 ... The interference in air flow assembly

321 ... Opening 521 ... The plane of inclination

33 ... Movable plate 61～62 ... Step

4 ... Fan

Embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of following cooperation, can clearly appear with reference to two preferred embodiments of accompanying drawing.

Before the present invention is described in detail, be noted that in following description similarly assembly is to represent with identical numbering.

Consult Fig. 2 and Fig. 4, first preferred embodiment with casing device 2 of dust removal apparatus of the present invention comprises a casing 3, a fan 4 and a dust removal apparatus 5.

Casing 3 defines a gas channel 31.Fan 4 is arranged in the casing 3 and is positioned at the end of gas channel 31, in order to extract the gas in the casing 3 out casing 3.In the present embodiment, fan 4 is arranged at the roof of casing 3, but fan 4 also can be arranged at other positions, does not exceed with disclosed, as long as fan 4 is positioned at the terminal of gas channel 31 and can cause gas to flow at gas channel 31.

Dust removal apparatus 5 comprises that an interference in air flow assembly 52 and sticks assembly 51, and interference in air flow assembly 52 has a plane of inclination 521.

The method of reduction case fan absorption dust of the present invention comprises following steps:

Step 61: interference in air flow assembly 52 is arranged at casing 3 internal faces and is positioned at the upstream end of fan 4, flow to the air-flow of fan 4 in order to interference.In the present embodiment, be to use a lamellar body as interference in air flow assembly 52, this lamellar body is to become to be obliquely installed, and above-mentioned plane of inclination 521 is a side surface of lamellar body.

Step 62: will stick assembly 51 and be arranged at casing 3 internal faces and be positioned at gas channel 31, and be positioned at the downstream part of interference in air flow assembly 52, this sticks assembly 51 in order to stick dust.Stick that assembly 51 has stickiness towards a side 511 of gas channel 31 and in order to stick dust.And in the present embodiment, stick assembly 51 and be one and stick in the two-sided tape of casing 3 internal faces, but not as limit.

When fan 4 runnings; Can form owing to the effect of fan 4 suctions in the gas channel 31 toward fan 4 airflow flowing; And when air-flow gas during through interference in air flow assembly 52, the design meeting of the plane of inclination 521 of interference in air flow assembly 52 forms the air-flow that passes through and disturbs, and makes air-flow form turbulent flow at interference in air flow assembly 52 top ends; Because this turbulent flow can slow down the speed that air-flow flows toward fan 4; Therefore, just can let the dust that carried secretly by air-flow have an opportunity at this moment, and attached on the side 511 of sticking assembly 51 because of self gravitation falls.So, just can reduce dust that air-flow carries secretly along with air flow stream is attached on the fan 4 toward fan 4, and then avoid fan 4 to influence its exhausting usefulness because of too much dust adheres to.

What remark additionally is; Owing to considering that sticking assembly 51 can stick a lot of dusts in use for some time and need to change; In the present embodiment; Casing 3 comprises a housing 32 and a movable plate 33, and housing 32 has an opening 321, and movable plate 33 is incorporated into housing 32 separably and covers opening 321.Interference in air flow assembly 52 with stick the internal face that assembly 51 all is connected in movable plate 33; So in use for some time; Can movable plate 33 be taken off will stick assembly 51 by housing 32 and change, and that interference in air flow assembly 52 more can be designed to movable plate 33 is one-body molded.

Consult Fig. 3, be second preferred embodiment with casing device 2 of dust removal apparatus of the present invention, the difference of itself and first preferred embodiment is the position that is provided with of interference in air flow assembly 52.

In the present embodiment, interference in air flow assembly 52 is connected in housing 32 internal faces and only sticks assembly 51 and is arranged at movable plate 33 internal faces.Because the working principle of second preferred embodiment is identical with the working principle of first preferred embodiment, in this no longer repeat specification.

In sum; The present invention is by the setting of interference in air flow assembly 52; Disturb by this and flow to the air-flow of fan 4, and then the dust that carried secretly by air-flow is fallen within stick assembly 51 and attached to and stick assembly 51, reduce the dust that air-flow carries secretly and be sent to fan 4 and be attached to fan 4; Really can effectively reach the dust absorption that reduces fan 4, so can reach the object of the invention really.

The above-described content of thought; Be merely preferred embodiment of the present invention; Can not limit the scope that the present invention implements with this, promptly every claims scope and invention description are done according to the present invention simple equivalent variations and modification all still belong in the scope that patent of the present invention contains.

Claims

1. A notebook computer casing device with a dust removal device, comprising:

A casing defining a gas channel, wherein the casing includes a housing and a movable piece, the casing has an opening, the movable piece is detachably combined with the casing and covers the open mouth

a fan, arranged in the casing and located at the end of the gas channel, for exhausting the gas from the casing; and

1. Dust removal device, comprising:

an airflow disrupting component disposed within the housing and upstream of the fan for disrupting the airflow to the fan, and

An adhesion component, arranged downstream of the airflow disturbance component, for adhering the dust entrained by the airflow and falling when the airflow is disturbed, the adhesion component is connected to the inner wall surface of the movable piece;

Wherein, the air flow interference component has an inclined surface inclined along the direction of the gas flow;

Wherein, the airflow interference component is a sheet disposed obliquely on the inner wall surface, and the inclined surface is the surface of the sheet;

Wherein, a side of the adhesive component facing the gas channel has viscosity.

2. The notebook computer case device with a dust removal device according to claim 1, wherein the adhesive component is a double-sided adhesive tape.

3. A notebook computer casing device with a dust removal device, comprising:

A casing defining a gas passage, wherein the casing includes a housing and a movable piece, the casing has an opening, the movable piece is detachably combined with the casing and covers the open mouth

1. Dust removal device, comprising:

An adhesive component, arranged downstream of the airflow disturbance component, is used to adhere dust entrained by the airflow and falling when the airflow is disturbed, wherein both the airflow disturbance component and the adhesion component are connected to the the inner wall surface of the movable piece;

Wherein, a side of the adhesive component facing the gas channel has viscosity.

4. The notebook computer case device with a dust removal device according to claim 3, wherein the airflow interference component is integrally formed with the movable plate.

5. The notebook computer case device with a dust removal device according to claim 3, wherein the adhesive component is a double-sided adhesive tape.