CN1185448C - Fan device - Google Patents
Fan device Download PDFInfo
- Publication number
- CN1185448C CN1185448C CNB011042877A CN01104287A CN1185448C CN 1185448 C CN1185448 C CN 1185448C CN B011042877 A CNB011042877 A CN B011042877A CN 01104287 A CN01104287 A CN 01104287A CN 1185448 C CN1185448 C CN 1185448C
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- China
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- spigot surface
- fan assembly
- deflector
- assembly according
- fan
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Abstract
The present invention relates to a fan device which comprises a fan blower, a first guide surface, a second guide surface, a third guide surface and a fourth guide surface, wherein the fan blower is made in a way that the fan blower can exhaust air along a plurality of directions in one air flow plane; the first guide surface and the second guide surface are arranged in the air flow plane and are installed on a first side of the fan blower so as to determine a first air flow path which leads to a first air flow channel together with a wall part; the third guide surface and the fourth guide surface are arranged in the air flow plane and are installed on a second reverse side of the fan blower so as to determine a second air flow path which leads to a second air flow channel together with the wall part. The guide surfaces are installed on mutually identical and independent guiding tools.
Description
The present invention relates to fan assembly.
Usually need in new-type goods and/or test facilities, control airborne granule content to guarantee output quality.No matter be wafer die, CD or disc driver, all need to adopt effective fan filter, can accept rank thereby not only the granule content in the clean room will be remained on, and want circulating air and be that workman in the clean room keeps comfortable working environment.
Yet this high-power fan filter can produce excessive noise.Now known can along conduit in the mode of contact air-flow on fan filter or inner lining acoustic material, to reduce noise.Yet, can leave the surface and pollute facility in the clean room from the particle of acoustic material or fiber.
The problem relevant with fan noise be especially severe in such as the confined spaces such as multi-layer crystal chip manufacturing shop or enclosure space.The present invention towards the confined space be that heights of ceilings is lower than three meters space.The noise that low ceiling causes the fan filter to send is obvious especially.
In the past, the applicant had once proposed a kind of device that is used to make fan filter noise minimization in WO 99/11984.
Another kind is used for making the device of fan filter noise minimization to propose in the UK Patent Application 9923163 that belongs to the applicant.A kind of fan assembly is provided in the disclosure thing, no matter fan is in the counterclockwise direction or is rotated in a clockwise direction all and can uses this device, wherein a pair of guide is placed in the two opposite sides of ventilating fan in flowpiston, flow through between two guides with steering current, each guide has a groove facing to fan respectively to hold fan, and each guide is respectively with respect to an imaging plane symmetry perpendicular to flowpiston, and this flowpiston is through fan center and a groove.In a preferred embodiment, guide has roughly W shape shape.S shape or W shape guide are thicker relatively, and make and install complicated.The inventor attempts to provide a kind of fan assembly, does not increase the impurity in the air-flow of the device of flowing through to reduce noise, and this fan assembly is easy to make and have higher-wattage efficient.
The inventor provides a kind of fan assembly for this reason, and it comprises:
A ventilating fan, it is configured to and can discharges air along a plurality of directions in a flowpiston;
First and second spigot surfaces, they are placed in first side of ventilating fan in flowpiston, the local at least together radially external boundary of determining first air flow path that leads to first gas channel of first and second spigot surfaces;
Third and fourth spigot surface, they are placed in second opposition side of ventilating fan in flowpiston, the local at least together radially external boundary of determining second air flow path that leads to second gas channel of third and fourth spigot surface, the first, second, third and the 4th spigot surface are loaded on independently on the steering tool.
By utilizing a pair of spigot surface that separates to be each air flow path structure guide, it is very simple that the structure of fan assembly becomes.Can utilize the part of very few number to construct a variety of structures.
Each spigot surface can be made of any suitable shape.It can be bending or straight.Determined by the ventilating fan periphery by radially inner side by spigot surface is definite for the radial outside of first and second air flow paths.Air flow path can be any suitable shape.They can be straight, are crooked but preferably make air flow path.Preferably make air flow path expand out at a certain angle with respect to the ventilating fan direction of rotation.
First or second air flow path can only be determined radial outside by corresponding a pair of spigot surface.Perhaps, can provide additional guide member to determine an air flow path extention.
In a particularly preferred embodiment, fan assembly comprises the first wall instrument that is positioned at ventilating fan first side, first spigot surface is at first contact first wall instrument, second spigot surface is contacting the first wall instrument with first second of being separated by, thereby makes the part between first and second o'clock on the first wall instrument determine an additional spigot surface effectively.Equally, preferably provide the second wall instrument in ventilating fan second side, the 3rd spigot surface is at first contact second wall instrument, the 4th spigot surface is contacting the second wall instrument with first second of being separated by, thereby makes the part between first and second o'clock on the second wall instrument determine an additional spigot surface effectively.
At least four steering tools are provided here.First steering tool comprises first spigot surface, and second steering tool comprises second spigot surface, and the 3rd steering tool comprises the 3rd spigot surface, and the 4th steering tool comprises the 4th spigot surface.
Preferably make each corresponding steering tool comprise an additional spigot surface, this additional spigot surface facing to the corresponding first, second, third and the 4th different direction of spigot surface.The point place that the additional spigot surface of steering tool helps to enter gas channel at air flow path forms the streamlined stream.
In a particularly preferred embodiment, at least the third and fourth steering tool is mutually the same, and preferably makes all steering tools mutually the same.This just feasible manufacturing and structure are simple especially, because only need make a kind of steering tool of form.
If the spigot surface of each steering tool and the additional spigot surface that has can be any suitable forms, but are preferably straight or crooked.Transition portion from spigot surface to additional spigot surface can be determined by a point.Yet, preferably determine, to improve air velocity and to reduce noise by smooth curve transition face.
Preferably make first spigot surface more approach the ventilating fan axis than second spigot surface.Equally, preferably make the 3rd spigot surface more approach the ventilating fan axis than the 4th spigot surface.In this way, can provide the expansion stream.The first and the 3rd spigot surface is positioned at mutually apart from ventilating fan axis same distance place, and the second and the 4th spigot surface is positioned at apart from ventilating fan axis same distance place.In this way, can obtain rotational symmetry structure.
In this structure, ventilating fan must rotate along correct direction, so that operate as normal.Specifically, ventilating fan must be along the direction rotation that can increase the air flow path width.
Preferably make steering tool mutually the same, and each steering tool is with respect to a minute surface symmetry through transition portion, thereby has a spigot surface and an additional spigot surface, additional spigot surface is identical with spigot surface basically.Like this, steering tool can easily change relative position, so that the form of spigot surface is suitable for the reverse rotation of fan.Specifically, this moment spigot surface the mirror image of the form form that should be fan when first direction rotate, wherein minute surface passes through the ventilating fan axis.
Preferably make first and second gas channels guide first deflector respectively into, first deflector is settled at a certain angle with respect to airflow direction, so that air flow deflector.Preferably make air-flow point to downward direction.
Vertical direction is taked is perpendicular to the direction that fan sends the plane of air.
Preferably make first and second gas channels comprise second deflector respectively, second deflector is with respect to settling at a certain angle from the air-flow of first deflector, so that the further deflection of air-flow.Suitable first deflector below that is installed in of second deflector.First and second deflectors together with corresponding air-flow in 90 °～180 ° scope with minimal disturbances deflection.
First and second deflectors preferably are tilted in relation to each other, so that the distance between deflector reduces gradually along the rectilinear direction that deviates from fan.Deflector is settled like this, thereby along with air leaves spigot surface, air can be by the first deflector deviation to second deflector, and second deflector is settled to such an extent that air can be derived from outlet.
First deflector or second deflector most preferably they the two include porous material, to improve the sound adsorption capacity.
Preferably making first deflector be 40 ° to 60 ° preferred 45 ° angles with respect to flowpiston settles.Preferably making second deflector be 5 ° to 15 ° preferred 10 ° angles with respect to the plane from the air-flow of fan settles.
Preferably make first and second gas channels preferably include a final deflector that is used for the deflection air-flow respectively.Final deflector is settled in a downward direction.Preferably make final deflector be installed in the ventilating fan below.The final deflector of first and second gas channels is being abut against each other form roughly v-shaped structure.
Preferably make fan assembly comprise a housing.
Preferably ventilating fan and spigot surface are arranged on the substrate.
Device also preferably includes a upper casing, and this upper casing links to each other with substrate and has an inlet with in the air suction fan, and fan and spigot surface are placed between upper casing and the substrate.Housing preferably includes lateral parts and an air outlet slit, and this outlet is communicated with corresponding gas channel, and gas channel is made of the gap between substrate, lateral parts and the upper casing.Lateral parts preferably includes foregoing wall instrument.Lateral parts and upper casing form one.
Preferably make in the local at least gap between lateral parts and substrate of additional deflector.
In said structure, substrate is preferably with respect to the housing location, so that the distance that stretch out from the housing upper surface less than lateral parts at the interval between the upper surface of substrate and upper casing.Also gapped between lateral parts and substrate, to form the outlet of fan assembly.Gap between case side face portion and the substrate is preferably enough big, is contained in this gap with at least a portion with chin spoiler.
Preferably make fan assembly comprise a filter.
The structure of spigot surface can reduce the noise of fan assembly.In addition, the structure of spigot surface can also improve the speed of air circulation in the device.Like this, can produce more high efficiency fan, it can be with less energy drives fan, to obtain identical gas circulation speed.
Fan assembly of the present invention mainly is applicable in the clean room.Therefore, device preferably includes a filter.Usually, filter placement is below the substrate of device.
Spigot surface of the present invention and/or deflector preferably more preferably are made of metal by stiff materials.Spigot surface and/or deflector can be porous.
Fan assembly of the present invention does not preferably comprise and the contacted traditional acoustic material of air-flow that flows through device.Acoustic material can be included in the fan assembly, but preferred the utilization such as sturdy construction such as deflector or wall instrument and air-flow separated.
Below with reference to non-limiting example the present invention is described, wherein:
Fig. 1 is the decomposition right side perspective view of one embodiment of the present of invention;
Fig. 2 is the preceding sectional view of the embodiment among Fig. 1;
Fig. 3 is the vertical view on the cross section A-A in Fig. 2;
Fig. 4 shows the position that being used in the fan assembly implement Fig. 5 gas velocity measurement;
Fig. 5 is ventilating fan mean air flow speed and the speed graph of a relation that adopts and do not adopt fan filter when of the present invention;
Fig. 6 is ventilating fan average noise rank and the speed graph of a relation that adopts and do not adopt fan filter when of the present invention.
Fig. 1 shows the exploded view of fan filter.For the sake of clarity, filter is not shown.A rotation ventilating fan 12 is placed on the substrate 14.An installing plate 20 that is used to install ventilating fan 12 is placed in the opposition side of substrate 14 with respect to ventilating fan 12.
Ventilating fan 12 is placed in the housing that is made of substrate 14, upper casing 16 and end face part 22.Upper casing 16 has arrangement air intake 18 in the central, thereby feasible this air intake in use is positioned at the top of ventilating fan 12.Ventilating fan 12 is plain edition ventilating fans.It is configured to be driven by the motor (not shown) and rotates, and this motor is placed on the opposition side of substrate 14 with respect to ventilating fan 12.Along with the rotation of ventilating fan, air will be from entering the mouth suction 18 and along the tangential discharge of ventilating fan 12 direction of rotation.
Ventilating fan also is equipped with first and second steering tool 24A and the 24B in a side, at opposite side third and fourth steering tool 24C and the 24D is housed.The shape of steering tool will be described in detail with reference to Fig. 3 in the back.
Baffle upper plate 26A and 26B and chin spoiler 28A and 28B are loaded on each end of device, so that these deflectors are placed between ventilating fan 12, steering tool 24A, 24B, 24C and 24D and the end face part 22.
Fig. 2 shows the airflow direction in the fan filter among Fig. 1.As previously mentioned, air is by in the suction inlet 18 that rotatablely moves of ventilating fan 12.Ventilating fan 12 is placed on the substrate 14.The rotation of ventilating fan will force air to leave ventilating fan and enter deflector 26A, 26B and 28A, 28B in.The direction of deflector will cause air diverts and leave ventilating fan and 19 outflows of the outlet through being placed in substrate 14 belows that are placed on the substrate.Air will be flowed through and will be positioned at filter 32 below the opening 19 afterwards.
Fig. 3 shows the ventilating fan according to Fig. 1 and 2 structure.Ventilating fan 12 is placed in the space between steering tool 24A, 24B, 24C and the 24D.Settling the first spigot surface 27A and the second spigot surface 27B in a side of fan filter.Above-mentioned spigot surface has been determined the radially external boundary of an air flow path with the part of wall 25A, and this path arrives baffle upper plate 26B through reducing 30.The 3rd spigot surface 27C and the 4th spigot surface 27D are loaded on the opposite side of ventilating fan, and have determined the radially external boundary of second air flow path with the wall 25B between them, and this path arrives baffle upper plate 26A through reducing 31.Can see that each guider comprises additional spigot surface 32A, 32B, 32C and a 32D respectively.Can see that additional spigot surface 32A and 32C determine an expansion stream that comes from reducing 31 between them.Additional spigot surface 32B and 32D determine an expansion stream that comes from reducing 30 between them.
Can see that the shape of steering tool 24A, 24B, 24C and 24D is mutually the same.They each comprise a smooth curved spigot surface and the additional spigot surface of smooth curved respectively, have a smooth curved transitional region 33 between the two.This smooth curved transitional region is used to reduce disturbance and improves air velocity.From Fig. 3, can also be clear that, from smooth curved part 33A to the ventilating fan center line apart from a less than distance b from transition portion 33B to the ventilating fan center line.
Equally, at opposite side, from transition portion 33D to the ventilating fan center line apart from d less than distance c from transition portion 33C to the ventilating fan center line.In this way, can utilize the identical steering tool of shape to provide the expansion stream around ventilating fan.
Baffle upper plate 26 is settled with about 45 with respect to the air plane of discharging from ventilating fan 12, so that air is scattered from steering tool 24.Chin spoiler 28 is settled with about 10 ° of angles with respect to flowpiston, so that air-flow alters course and flows into substrate 14 belows.
Fig. 4,5 and 6 shows the result that fan assembly obtains.Fig. 5 shows the mean air flow hodograph of measuring on 15 differences of fan assembly.15 position display of in the fan assembly this are in Fig. 4.Equally, the noise rank mean value measured and the graph of a relation between the ventilating fan speed have been shown among Fig. 6 on identical 15 points.
The noise rank is measured for one meter at a distance at the distance fan, and unit is a decibel.
Can see, after having adopted steering tool and deflector, can produce very excellent result.Therefore, the present invention can utilize identical fans drive energy to realize higher air velocity, to strengthen the air circulation effect.Therefore, in terms of existing technologies, the invention provides significant energy advantage.
Claims (18)
1. fan assembly, it comprises:
A ventilating fan, it is configured to and can discharges air along a plurality of directions in a flowpiston;
First and second spigot surfaces, they are placed in first side of ventilating fan in flowpiston, the local at least together radially external boundary of determining first air flow path that leads to first gas channel of first and second spigot surfaces;
Third and fourth spigot surface, they are placed in second opposition side of ventilating fan in flowpiston, the local at least together radially external boundary of determining second air flow path that leads to second gas channel of third and fourth spigot surface;
The first, second, third and the 4th steering tool, each steering tool comprise the first, second, third and the 4th spigot surface respectively;
It is characterized in that, fan assembly further comprises the first wall instrument that is positioned at ventilating fan first side, first spigot surface is at first contact first wall instrument, second spigot surface is contacting the first wall instrument with first second of being separated by, and fan assembly also comprises the second wall instrument that is positioned at ventilating fan second side, the 3rd spigot surface is thirdly contacting the second wall instrument, and the 4th spigot surface is contacting the second wall instrument with the 4th that thirdly is separated by.
2. fan assembly according to claim 1 is characterized in that, the part between first and second o'clock on the first wall instrument is determined an additional spigot surface effectively.
3. fan assembly according to claim 1 is characterized in that, the part between third and fourth o'clock on the second wall instrument is determined one second additional spigot surface effectively.
4. fan assembly according to claim 1 is characterized in that all steering tools are mutually the same.
5. fan assembly according to claim 2 is characterized in that all steering tools are mutually the same.
6. fan assembly according to claim 3 is characterized in that all steering tools are mutually the same.
7. fan assembly according to claim 1 is characterized in that first and second gas channels are guided first deflector respectively into, and first deflector is settled so that air flow deflector at a certain angle with respect to airflow direction.
8. fan assembly according to claim 7 is characterized in that first and second gas channels also comprise second deflector, and second deflector is with respect to settling at a certain angle so that the further deflection of air-flow from the air-flow of first deflector.
9. fan assembly according to claim 8 is characterized in that, at least one comprises porous material in first deflector and second deflector.
10. fan assembly according to claim 8 is characterized in that, first and second gas channels comprise a final deflector that is used for the deflection air-flow respectively.
11. fan assembly according to claim 2 is characterized in that, first and second gas channels are guided first deflector respectively into, and first deflector is settled so that air flow deflector at a certain angle with respect to airflow direction.
12. fan assembly according to claim 3 is characterized in that, first and second gas channels are guided first deflector respectively into, and first deflector is settled so that air flow deflector at a certain angle with respect to airflow direction.
13. fan assembly according to claim 1 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
14. fan assembly according to claim 2 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
15. fan assembly according to claim 3 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
16. fan assembly according to claim 4 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
17. fan assembly according to claim 7 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
18. fan assembly according to claim 10 is characterized in that, each steering tool is basically with respect to a minute surface symmetry, thereby makes guider comprise first spigot surface and roughly the same additional spigot surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042877A CN1185448C (en) | 2001-02-26 | 2001-02-26 | Fan device |
| HK02109353.0A HK1050563B (en) | 2001-02-26 | 2002-12-27 | Fan unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042877A CN1185448C (en) | 2001-02-26 | 2001-02-26 | Fan device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1372111A CN1372111A (en) | 2002-10-02 |
| CN1185448C true CN1185448C (en) | 2005-01-19 |
Family
ID=4653812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011042877A Expired - Fee Related CN1185448C (en) | 2001-02-26 | 2001-02-26 | Fan device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1185448C (en) |
| HK (1) | HK1050563B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6078269B2 (en) * | 2012-08-30 | 2017-02-08 | 東プレ株式会社 | Blower unit |
-
2001
- 2001-02-26 CN CNB011042877A patent/CN1185448C/en not_active Expired - Fee Related
-
2002
- 2002-12-27 HK HK02109353.0A patent/HK1050563B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HK1050563B (en) | 2005-09-02 |
| HK1050563A1 (en) | 2003-06-27 |
| CN1372111A (en) | 2002-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050119 Termination date: 20130226 |