CN110291296A - Cooling fan and seat cooling device with it - Google Patents
Cooling fan and seat cooling device with it Download PDFInfo
- Publication number
- CN110291296A CN110291296A CN201880009018.4A CN201880009018A CN110291296A CN 110291296 A CN110291296 A CN 110291296A CN 201880009018 A CN201880009018 A CN 201880009018A CN 110291296 A CN110291296 A CN 110291296A
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- Prior art keywords
- air
- mentioned
- bypass
- cooling fan
- edge
- Prior art date
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- Granted
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- 238000001816 cooling Methods 0.000 title claims abstract description 92
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/50—Inlet or outlet
- F05B2250/501—Inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
Abstract
Cooling fan of the invention includes: fan housing, forms the air inflow aperture passed air into forward face, forms the air outlet for air to be discharged in side；And impeller, it is installed on the inside of said fans outer cover, flow into air along axis direction, air is discharged along radial direction, the bypass of the air inversely moved to external discharge towards above-mentioned air outlet is formed at the edge of above-mentioned air inflow aperture, when cooling fan is in high power, noise minimize and improves air supply efficiency by the air inversely moved to external discharge occur.
Description
Technical field
The present invention relates to the cooling fan for playing cooling effect and with its seat cooling device.
Background technique
Currently, the vehicle seat used main cooling seat that can carry out cooling to seat using summer.Cooling seat setting
There is the seat cooling device including cooling fan.
Moreover, electronic product overheat or luminaire overheat and mainly use cooling fan in order to prevent, cooling fan is logical
Crossing rotates the blade driven based on motor cools down to be blown and be implemented, and when in high-power, arranges to air
Wind pressure will increase in the case that the air capacity of outlet discharge sharply increases or occur the load for interfering air to flow, and produce as a result,
It gives birth to noise and overload can occur in motor.
In order to solve this noise problem, such as Korean granted utility model bulletin 20-0332249 (on October 27th, 2003)
It is shown, rotary shaft, which is set to, in the shell with air suction inlet and air outlet in previous centrifugal blower is connected
Impeller, the upper end setting between impeller and air suction inlet prevents plate against the wind, empty in the connection of impeller and air suction inlet
Between setting against the wind prevent ring, thus by preventing from contrary wind to reduce noise.
When being in low-power, this previous centrifugal blower can make the air being discharged along radial direction pass through sky
Gas outlet is smoothly discharged, and can be by preventing plate from preventing air from inversely flowing into against the wind.
But when being in high power, increase in the air capacity being discharged or because of the load by air outlet slit side
In the case where interfering air flowing, portion of air is discharged without normal direction air outlet, but reverse flow, is discharged with to air
The air of mouth discharge collides and generates noise and reduces air supply efficiency, and overload also occurs for motor.
Summary of the invention
Technical problem
The object of the present invention is to provide cooling fan and with its seat cooling device, that is, outside radical can be passed through
Lead to due to high power or there is a phenomenon where interfering air flowing and in the sky inversely moved into the air that air outlet is discharged
Noise minimization can be prevented motor overload by gas.
Another object of the present invention is to provide cooling fan and with its seat cooling device, that is, removal can be passed through
The bellmouth of air suction inlet is formed in by noise minimization and air supply efficiency can be improved.
Solution to problem
Cooling fan of the invention can include: fan housing forms the air inflow aperture passed air into forward face,
Side forms the air outlet for air to be discharged；And impeller, be installed on the inside of said fans outer cover, make air along
Axis direction flow into, along radial direction be discharged air, above-mentioned air inflow aperture edge formed bypass, so as to
The air that inversely moves of the outside discharge towards above-mentioned air outlet.
In the inside of said fans outer cover, the air suction passage for sucking air can be formed in the inside of impeller,
The air drain passageway for air to be discharged is formed in the outside of impeller, above-mentioned bypass is connected with above-mentioned air drain passageway
It is logical.
Above-mentioned bypass can be expanded at the edge of above-mentioned air inflow aperture along lateral direction, to make above-mentioned air
Drain passageway exposes to outside.
Above-mentioned bypass can be connected with the radial supporting rib for being formed in air inflow aperture, so that above-mentioned bypass is logical
Road is divided into multiple regions.
Above-mentioned bypass can circumferentially separate specified interval at the edge of above-mentioned air inflow aperture and form, and
It is formed in the position for forming above-mentioned air outlet with the range of 90 degree~180 degree.
Above-mentioned bypass can be formed in the edge of above-mentioned air inflow aperture with 360 degree of range across specified interval.
Above-mentioned bypass can include: the first bypass portion is configured at close to the position of above-mentioned air outlet, is used for
Expose air drain passageway；And second bypass portion be configured in the circumferencial direction edge of above-mentioned air inflow aperture
Remaining edge in addition to the first bypass portion, area less than the first bypass portion area, to prevent above-mentioned air from arranging
Access exposes out.
Above-mentioned bypass can circumferentially separate specified interval at the edge of above-mentioned air inflow aperture and form 2
~6.
Above-mentioned bypass can circumferentially separate specified interval at the edge of above-mentioned air inflow aperture and form first
Bypass, forms the second bypass between above-mentioned first bypass, the area of above-mentioned second bypass be less than with
The area of first bypass.
The effect of invention
As described above, cooling fan of the invention forms bypass outward at the air inflow aperture edge of fan housing
The air that inversely moves is discharged in portion, and with this can prevent the constricted flow due to air and generate noise and air-supply effect can be improved
Rate.
And it is possible to remove the bellmouth for being formed in air suction inlet, along the peripheral direction of air suction inlet to provide between
By noise minimization and air supply efficiency is improved every the bypass that formation is connected with air drain passageway.
Detailed description of the invention
Fig. 1 is the perspective view of first embodiment of the invention cooling fan.
Fig. 2 is the cross-sectional view of first embodiment of the invention cooling fan.
Fig. 3 is the top view for showing the fan housing of first embodiment of the invention bypass.
Fig. 4 is the top view for showing the fan housing of second embodiment of the invention bypass.
Fig. 5 is the top view for showing the fan housing of third embodiment of the invention bypass.
Fig. 6 is the top view for showing the fan housing of fourth embodiment of the invention bypass.
Fig. 7 is the top view for showing the fan housing of fifth embodiment of the invention bypass.
Fig. 8 is the top view for showing the fan housing of sixth embodiment of the invention bypass.
Fig. 9 is the side view of seat cooling device of the invention.
Figure 10 is the cross-sectional view of seat cooling device of the invention.
Figure 11 is to be compared to the relationship between the RPM and air output of cooling fan and common cooling fan of the invention
Chart.
Specific embodiment
Hereinafter, referring to attached drawing, the embodiment that the present invention will be described in detail.In the process, in order to illustrate definition and just
Benefit, size or shape of structural element shown in figure etc. can be amplified.Also, consider structure and effect of the invention
Specifically defined term can change according to user of service, with the intention or convention of personnel.The definition of this term is passed through
Entire contents of the present specification definition.
Referring to FIG. 1 and FIG. 2, cooling fan of the invention includes: fan housing 10, is passed air into forward face formation
Air inflow aperture 14 forms the air outlet 18 for air to be discharged in side 16；And fan unit 20, it is outer to be installed on fan
The inside of cover 10, for generating air-supply power.
Fan unit 20 be make air along axis direction flow into and to along radial direction discharge air fan, comprising:
Rotary shaft 42, the support portion 40 for being formed on fan housing 10 in a rotatable way support；Stator 50 is fixed on support portion 40
Outer peripheral surface and be applied power supply；Rotor 60 is fixed on rotary shaft 42, rotates together with rotary shaft 42；And impeller 70, with turn
Son 60 and rotary shaft 42 are formed as one, and suck air along axis direction and air is discharged to radial direction.
Stator 50 includes: stator core 52, is fixed on the outer peripheral surface of support portion 40；And coil 54, it is wound in stator core 52,
It is applied power supply.
Rotor 60 includes: magnet 62, is formed in the outer peripheral surface of stator 50 across regulation gap with annular；And rotor supports
Body 64, fixed magnet 62 are formed as one with rotary shaft 42 and impeller 70.
First bearing 44 and second bearing 46 are installed in the inside of support portion 40 to be rotatably supported rotary shaft
42。
Impeller 70 includes: wheel hub 72, is formed as one with rotor supporting body 64；Blade 74, on the outer peripheral surface edge of wheel hub 72
Peripheral direction formed, for generate air-supply power；And ring portion 76, it is formed at the edge of blade 74 with annular state, for being discharged
Air.
If impeller 70 as described above is rotated, air is sucked along axis direction, by ring portion 76 to radial direction
Air is discharged.
The forward face 12 for being formed in fan housing 10 air suction inlet 14 with radial formation supporting rib, thus to leaf
Wheel 76 is protected.Moreover, forming the air outlet 18 along radial direction discharge air in the side of fan housing 10 16.
If impeller 70 is rotated, cooling fan as described above makes air along axis side by air inflow aperture 14
To inflow, air is discharged along the radial direction of impeller 70.Therefore, air suction passage is divided into inside fan housing 10
80 and air drain passageway 82, above-mentioned air suction passage 80 is corresponding with the inboard portion of impeller and for sucking air, on
It is corresponding with the exterior portion of impeller and for air to be discharged to state air drain passageway 82.
This cooling fan axially sucks air by air inflow aperture 14, by air outlet 18 to radius side
To discharge air.In the case, when cooling fan is in low-power, the flowing of air is simultaneously few, and therefore, air will be smooth
Ground flowing, will not generate noise because of the constricted flow of air.
But in the case where cooling fan is in the constricted flow of high power or air, flowed into air inflow aperture 14
Air capacity will increase, still, the air capacity being discharged to air outlet 18 will be reduced, because of the constricted flow of air, a part
Air is inversely flowed into the inside of outer cover 10.
In the case, the air being discharged by air outlet 18 and the air inversely moved to air outlet 18
Noise is mutually collided and generated, air supply efficiency is reduced with this.In particular, it is current, in the cooling seat of vehicle, cooling fan is set
In the case of, the air blown by cooling fan will be by the process to fiber seat air supply or pass through filter during
Resistance increases noise due to being obstructed because of the flowing of this air.
In the present embodiment, when being in low-power, all air are discharged by air outlet 18, to prevent from blowing
Amount reduces, and in the case where being in high power or air constricted flow, the air that inversely moves to external discharge maintains to blow
Simultaneously bypass 90 is arranged at the edge of the air suction inlet of fan housing 10 14 in performance, and noise is minimized.
When cooling fan is in low-power, bypass 90 of the invention prevents the air being discharged to air outlet 18
It is flowed into bypass 90 to maintain wind pushing performance, so that the air inversely moved is ejected reduction by bypass 90 and make an uproar
Sound.
Bypass 90 is formed in the forward face 12 of fan housing 10, so as to the air drain passageway 82 with fan housing 10
It is connected, so that the air inversely moved is bypassed along axis direction.
Bypass 90 is formed in the edge of air inflow aperture 14, in the exterior face interval L of impeller 70, so as to wind
The air drain passageway 82 of fan outer cover 10 is connected, so that air drain passageway 82 be made to expose to outside.That is, bypass 90 exists
The exterior face of impeller 70 is formed along lateral direction, with this make air drain passageway 82 expose, thus by bypass 90 to
The air that outside discharge is inversely moved.
Bypass 90 is connected in air inflow aperture 14 with the supporting rib of radial formation, so that bypass 90 is in
It is divided into the form of multiple regions.
Cooling fan flows into air along axis direction by the air inflow aperture 14 of the forward face 12 of fan housing 10, leads to
The air outlet 18 for being formed in the side 16 of fan housing 10 is crossed along radial direction discharge air.Therefore, when in low function
When rate, in the air in the level pressure region 82 of fan housing 10, since the power being discharged along radial direction plays a role, thus,
Air will not be discharged to the bypass 90 that the axis direction along fan housing 10 is formed, even if discharge air, the sky being discharged
Tolerance will not also have an impact air output.
When cooling fan is in high power or in the case where load occurs for air discharge side, sent out in air outlet 18
Raw flow resistance, a part for the air being discharged as a result, to air outlet 18 are inversely flowed into the inside of fan housing 10.?
In this case, the air inversely moved is arranged by being formed in the bypass 90 of the forward face of fan housing 10 along axis direction
Out, by the noise minimization generated due to the air that moves with the positive direction along air outlet 18 collides and can prevent as a result,
Only the air quantity based on flow resistance reduces.
As shown in figure 3, the bypass 90 of first embodiment circumferentially separates at the edge of air inflow aperture 14
Specified interval forms, and is formed with the range with the 90 degree~180 degree close to air outlet 18.
That is, the bypass 90 of first embodiment is expanded in outward direction at the edge of air suction inlet 14, to make wind
The air drain passageway 82 for fanning outer cover 10 exposes to outside.
As described above, the bypass 90 of first embodiment is only formed close to the position of air outlet 18, for arranging
Out in the air of air outlet reverse flow.
As shown in figure 4, the bypass 92,94 of second embodiment includes: the first bypass portion 94, arranged close to air
The position of outlet 18, forms at predetermined intervals, exposes air drain passageway 82 to outside；And the second bypass portion 92,
In the circumferencial direction edge of air inflow aperture 14, it is formed in the edge in addition to the first bypass portion 94, area is less than
The area in one bypass portion 94, to prevent air drain passageway 82 from exposing.
Wherein, the first bypass portion 94 can be formed with the range for approaching 90 degree~180 degree of air outlet 18.
First bypass portion 94 play the role of it is identical with the bypass 90 illustrated in above-mentioned first embodiment, second
92 area of bypass portion less than 94 area of the first bypass portion, thus, expand the inhalation area of air, while can be with second
Secondary discharge is not discharged and the air mobile to the air suction passage 80 of fan housing 10 to the first bypass 94.
As shown in figure 5, integral face edge of the bypass 96 of 3rd embodiment at the edge of air inflow aperture 14 at 360 degree
Circumferencial direction separate specified interval and form, it is reverse to improve to expand the area of the bypass 90 illustrated in the first embodiment
The bypass efficiency of mobile air.
As shown in fig. 6, the bypass 102,104 of fourth embodiment includes: the first bypass portion 104, it is formed in and leans on
The position of nearly air outlet 18, prevents air drain passageway 82 from exposing to outside；And the second bypass portion 102, in sky
In the circumferencial direction edge of air flow inlet 14, it is formed in the remaining edge in addition to the first bypass portion 104, area is greater than the
The area in one bypass portion 104, to prevent the next external exposing of air drain passageway 82.
As shown in fig. 7, the bypass 150 of the 5th embodiment the edge of air inflow aperture 14 circumferentially, with
It is equidistant to form 2~6.The structure phase of the structure of bypass 150 and the bypass 90 illustrated in the first embodiment
Together.
Moreover, the edge of air inflow aperture 14 is in plate morphology, and the not such as curved-surface shape of bellmouth, to prevent noise
Generation.That is, the suction inlet of the sucking air of removal in the past is formed as the bellmouth of curved-surface shape in order to improve level pressure, thus will
The noise minimization generated by bellmouth.
In the case where bypass 150 is 2 situations below, the air discharge rate inversely moved is few, makes an uproar to be difficult to execute
Sound reduction effect, if bypass 150 is 6 or more, the air being discharged will be leaked, so that asking for air output reduction occur
Topic.
In the case where bypass 150 is 2, along the circumferencial direction of air inflow aperture, formed with 180 degree interval,
It in the case where 3, is formed, in the case where 4, is formed with 90 degree of intervals, in the case where 5, with 72 with 120 degree of intervals
Degree interval is formed, and in the case where 6, is formed with 60 degree of interval.Bypass 150 circumferentially, equidistantly to arrange
Column, so as to which the air inversely moved is successively discharged.
As shown in fig. 7, if this bypass 150 formed by the interval with 120 degree the first bypass portion 152,
Two bypass portions 154 and third bypass portion 156 are constituted, then by noise minimization and can maintain air output.
As shown in figure 8, the bypass 170 of sixth embodiment includes: the first bypass portion 172, in air inflow aperture
14 edge circumferentially, equidistantly to be formed；And the second bypass portion 174, it is logical to be configured at above-mentioned first bypass
Between road portion 172, area of the area less than the first bypass portion 172.
The area needs in the first bypass portion 172 are very big, so that air drain passageway 82 exposes to outside, above-mentioned second
174 area of bypass portion less than the first bypass portion 172 area, with prevent air drain passageway 82 expose.
First bypass 172 is equidistantly to form 2~6, and the second bypass portion 174 is also equidistantly to form 2
It is a~6.It is highly preferred that the second bypass portion 174 is also with equidistant if the first bypass 172 is equidistantly to form 3
3 are formed, then can satisfy the optimal conditions that noise reduces and prevent air output from reducing.
Fig. 9 is the side view of the cooling seat of setting seat cooling device of the invention, and Figure 10 is one embodiment of the invention
Seat cooling device cross-sectional view.
Seat cooling device includes: cooling fan 200, air needed for seat cooling of blowing；And pipeline 210, connection
Between cooling fan 200 and seat 220, for supplying the air generated in cooling fan 200 to seat 220.Inside seat
Form the air flue for the air supplied by pipeline to be integrally evenly distributed to seat.
Cooling fan is applicable in cooling fan identical with the cooling fan illustrated in above-described embodiment.
Pipeline 210 includes: first connecting portion 212, is configured along horizontal direction, 18 phase of air outlet with cooling fan
Connection；Second connecting portion 214, configures along vertical direction, guides air to vertical direction；First vertical guiding portion 230, to hang down
The air that histogram is discharged to guidance in cooling fan 200；Horizontal guiding portion 232 is guided to horizontal direction to the first vertical guide
The air that portion 230 guides；And second vertical guiding portion 234, the sky guided to horizontal guiding portion 232 is guided to vertical direction
Gas.
Moreover, can be set in pipeline 210 for filtering out in the filtering from the foreign matter in the air that cooling fan is discharged
Device.
In above-mentioned seat cooling device, seat is carried out in cooling characteristic, the flow path of pipeline is complicated, in cooling seat
In, the air flue that air is discharged is small and complicated, and therefore, the degree of being obstructed that air is discharged in cooling fan will increase.Therefore,
A part into the air of the discharge of cooling fan inversely flowed into the inside of cooling fan and be discharged in cooling fan
Air collides and generates noise, and overload occurs in motor.
Therefore, it if cooling fan of the invention is suitable for seat cooling device, by noise minimization and prevents from blowing
Amount is reduced.
Figure 11 is to be compared to the relationship between the RPM and air output of cooling fan and common cooling fan of the invention
Chart.A line indicates that the RPM and air quantity relationship of previous cooling fan, B line indicate the RPM and wind of cooling fan of the invention
Magnitude relation.
As shown in the chart of Figure 11, it can confirm in actual use frequency range, cooling fan of the invention and previous cooling
Fan generates almost the same air quantity in identical RPM.Therefore, cooling fan of the invention actual use frequency range in generate with
The identical air quantity of previous cooling fan can simultaneously minimize noise.
More than, the present invention has shown and described by taking specific preferred embodiment as an example, the invention is not limited to above-mentioned realities
Example is applied, without departing from the spirit of the invention, general technical staff of the technical field of the invention can carry out a variety of
Change and modification.
Industrial availability
The present invention is set to cooling seat, High performance electronics or luminaire etc. to execute heat sinking function, can incite somebody to action
Noise, which generates, to be minimized and air supply efficiency can be improved, to be suitable for the cooling fan of air-cooling device.
Claims (14)
1. a kind of cooling fan, which is characterized in that
Include:
Fan housing forms the air inflow aperture passed air into forward face, forms the air for air to be discharged in side
Outlet；And
Impeller is installed on the inside of said fans outer cover, flows into air along axis direction, and air is discharged along radial direction,
The air inversely moved to external discharge towards above-mentioned air outlet is formed at the edge of above-mentioned air inflow aperture
Bypass.
2. cooling fan according to claim 1, which is characterized in that
In the inside of said fans outer cover, the air suction passage for sucking air is formed in the inside of impeller, in impeller
Outside form the air drain passageway for air to be discharged,
Above-mentioned bypass is connected with above-mentioned air drain passageway.
3. cooling fan according to claim 2, which is characterized in that above-mentioned bypass is on the side of above-mentioned air inflow aperture
Edge is expanded along lateral direction, so that above-mentioned air drain passageway be made to expose to outside.
4. cooling fan according to claim 1, which is characterized in that above-mentioned bypass with radial be formed in air
The supporting rib of inflow entrance is connected, so that above-mentioned bypass is divided into multiple regions.
5. cooling fan according to claim 1, which is characterized in that above-mentioned bypass is on the side of above-mentioned air inflow aperture
Edge circumferentially separates specified interval and forms, and is forming the position of above-mentioned air outlet with the model of 90 degree~180 degree
It encloses to be formed.
6. cooling fan according to claim 1, which is characterized in that above-mentioned bypass is with 360 degree of range across rule
Fixed interval is formed in the edge of above-mentioned air inflow aperture.
7. cooling fan according to claim 2, which is characterized in that above-mentioned bypass includes:
First bypass portion is configured at close to the position of above-mentioned air outlet, for exposing air drain passageway；And
Second bypass portion, in the circumferencial direction edge of above-mentioned air inflow aperture, be configured at except the first bypass portion it
Outer remaining edge, area less than the first bypass portion area, to prevent above-mentioned air drain passageway from exposing.
8. cooling fan according to claim 2, which is characterized in that above-mentioned bypass includes:
First bypass portion is configured at close to the position of above-mentioned air outlet, for preventing air drain passageway from exposing；With
And
Second bypass portion, in the circumferencial direction edge of above-mentioned air inflow aperture, be configured at except the first bypass portion it
Outer remaining edge, area are greater than the area in above-mentioned first bypass portion, so that above-mentioned air drain passageway exposes.
9. cooling fan according to claim 2, which is characterized in that above-mentioned bypass is on the side of above-mentioned air inflow aperture
Edge circumferentially arranges at predetermined intervals.
10. cooling fan according to claim 9, which is characterized in that above-mentioned bypass forms 2~6.
11. cooling fan according to claim 2, which is characterized in that above-mentioned bypass includes:
First bypass circumferentially separates specified interval at the edge of above-mentioned air inflow aperture and forms；And
Second bypass is arranged between above-mentioned first bypass, and area is less than the area of above-mentioned first bypass.
12. cooling fan according to claim 11, which is characterized in that above-mentioned first bypass forms 2~6,
The quantity of above-mentioned second bypass is identical as the first bypass.
13. cooling fan according to claim 1, which is characterized in that the edge of above-mentioned air inflow aperture is in no bellmouth
Plane configuration.
14. a kind of seat cooling device, which is characterized in that
Include:
Seat, in the air flue that internal formation bypasses air through；
Cooling fan generates the required air of the cooling of above-mentioned seat；And
Pipeline, for connecting between above-mentioned cooling fan and seat,
Above-mentioned cooling fan is cooling fan described in any one of claim 1 to 13.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20170034020 | 2017-03-17 | ||
| KR10-2017-0034020 | 2017-03-17 | ||
| KR1020170144650A KR101990108B1 (en) | 2017-03-17 | 2017-11-01 | A cooling fan and seat cooling system having the same |
| KR10-2017-0144650 | 2017-11-01 | ||
| PCT/KR2018/003022 WO2018169316A1 (en) | 2017-03-17 | 2018-03-15 | Cooling fan and seat cooling device comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110291296A true CN110291296A (en) | 2019-09-27 |
| CN110291296B CN110291296B (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880009018.4A Active CN110291296B (en) | 2017-03-17 | 2018-03-15 | Cooling fan and seat cooling device with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110291296B (en) |
| WO (1) | WO2018169316A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021214932A1 (en) * | 2021-12-22 | 2023-06-22 | Mahle International Gmbh | Blower device for a chair |
| CN115768084B (en) * | 2022-12-10 | 2023-09-01 | 江苏瑞普森电路科技有限公司 | Heat abstractor of integrated circuit |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110291296B (en) | 2022-01-28 |
| WO2018169316A1 (en) | 2018-09-20 |
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