CN109538515A - Blower fan - Google Patents
Blower fan Download PDFInfo
- Publication number
- CN109538515A CN109538515A CN201910097955.6A CN201910097955A CN109538515A CN 109538515 A CN109538515 A CN 109538515A CN 201910097955 A CN201910097955 A CN 201910097955A CN 109538515 A CN109538515 A CN 109538515A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- impeller
- shell
- air
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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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
- F04D29/40—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
- F04D29/424—Double entry 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
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of blower fans, impeller including shell and positioned at the inside of the shell, the shell is equipped at least one air outlet and at least one air inlet, the air inlet is connected to the impeller, the impeller is connected to the air outlet, the profile of the air inlet includes the different circular arc of several segments diameter, the diameter of the impeller and air inlet ratio is 1:0.4-1:1, the shell is set there are two opposite surface, two opposite surfaces are respectively equipped with air inlet, the air outlet is located at the side wall of the shell, an air inlet in two air inlets is equipped with mounting rack, the impeller is installed on mounting rack, the air inlet that mounting rack is equipped in two air inlets is time air inlet, and another air inlet is main air inlet.The setting of the circular arc of different-diameter of the invention has the effect of pressure release and noise reduction, while blower fan being made to obtain bigger drive efficiency, improves the effect of heat dissipation so that the gas dispersion of air inlet flows into shell.
Description
Technical field
The invention belongs to technical field of heat dissipation, more particularly to a kind of blower fan with decrease of noise functions.
Background technique
With the continuous development of electronic products, it is incident be electronic product itself operating temperature also rise it is more next
It is faster, therefore the fan for being used to cool down electronic product is also required to constantly promote its heat dissipation, it is harsher to adapt to
Dissipating-heat environment.
A kind of blower fan disclosed in Chinese patent notification number CN201381995Y, including shell block, impeller and cover board, shell block tool
There is an accommodating space and an air outlet, cover board to be set to the top of shell block, the cover board have an air inlet and at least one
Auxiliary air inlet opening so that ambient atmos pass through air inlet and auxiliary air inlet opening enters in accommodating space simultaneously, improve it is whole into
Wind efficiency improves heat dissipation effect, but gathering with air inlet air-flow, pressure increase, to increase blower fan work
When noise.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of blower fan, the setting of the circular arc of different-diameter, so that into
Gas dispersion at air port flows into shell, has the effect of pressure release and noise reduction, while blower fan being made to obtain bigger driving effect
Rate improves the effect of heat dissipation.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of blower fan, including shell and position
Impeller in the inside of the shell, the shell are equipped at least one air outlet and at least one air inlet, the air inlet
It is connected to the impeller, the impeller is connected to the air outlet, and the profile of the air inlet includes that several segments diameter is different
Circular arc.
It further says, the diameter ratio of the impeller and the air inlet is 1:0.4-1:1.
It further says, the shell is set there are two opposite surface, and two opposite surfaces are respectively equipped with air inlet, institute
State the side wall that air outlet is located at the shell.
It further says, an air inlet in two air inlets is equipped with mounting rack, and the impeller is installed on
It shelves, the air inlet that mounting rack is equipped in two air inlets is time air inlet, and another air inlet is main air inlet.
It further says, the profile of the air inlet includes the 2-12 sections of different circular arcs of diameter.
It further says, the mounting rack includes that a mounting portion and self installation portion to air inlet contour extension and are connected to
Several interconnecting pieces of air inlet profile, the impeller are installed on mounting portion.
Further say, the inside of the shell by the direction that gas flows be successively arranged climbing area, Ji Fengqu, it is described go out
Air port and tongue mouth, the tongue mouth are located at air outlet, and the tongue mouth and the Ji Fengqu are located at the two of the air outlet
Side.
Beneficial effects of the present invention at least have the following:
The present invention includes that the profile of air inlet includes the different circular arc of several segments diameter, since the diameter of arc section is different,
To make the gas of air inlet disperse to flow into shell, the pressure that air-flow flows into blower fan is reduced, has the effect of noise reduction,
So that blower fan is obtained bigger drive efficiency simultaneously, improves the effect of heat dissipation；
The air inlet that motor is equipped in two air inlets of the invention is time air inlet, and based on another air inlet into
Air port increases incoming air area by the setting of double air inlets, and blower fan is made to obtain bigger intake, improves radiating efficiency；
The inside of shell of the invention is equipped with tongue mouth, and tongue mouth is located at air inlet, is flowed out convenient for air-flow by air outlet, prevents
Fluid stopping enters the gas backstreaming in blower fan, improves radiating efficiency.
Detailed description of the invention
Fig. 1 is exploded view of the invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is cross-sectional view of the invention；
Each section label is as follows in attached drawing:
Shell 1, secondary air inlet 12, main air inlet 13, impeller 2, circular arc 3, mounting portion 41, interconnecting piece 42, is climbed at air outlet 11
Slope area 5, the area Ji Feng 6 and tongue mouth 7.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment: a kind of blower fan, as shown in Figure 1-Figure 3, the impeller including shell 1 and positioned at the inside of the shell 1
2, the shell 1 is equipped at least one air outlet 11 and at least one air inlet, and the air inlet is connected to the impeller 2, institute
It states impeller 2 to be connected to the air outlet 11, the profile of the air inlet includes the different circular arc 3 of several segments diameter.
The diameter ratio of the impeller 2 and the air inlet is 1:0.4-1:1.
Circular arc 3 described in several segments is located at using the center of the impeller 2 as the concentric circles in the center of circle.
The shell 1 is set there are two opposite surface, and two opposite surfaces are respectively equipped with air inlet, the air outlet 11
Positioned at the side wall of the shell 1.
An air inlet in two air inlets is equipped with mounting rack, and the impeller is installed on mounting rack, two into
The air inlet that mounting rack is equipped in air port is time air inlet 12, and another air inlet is main air inlet 13.
The circular arc 3 of the main air inlet and the position of the circular arc 3 of the secondary air inlet 12 are all consistent with diameter.
The profile of the air inlet includes the 2-12 sections of different circular arcs of diameter 3.
Preferably, the profile of the air inlet includes 3 sections or the different circular arc 3 of 5 sections of diameters.
The mounting rack includes that a mounting portion 41 and self installation portion 41 to air inlet contour extension and are connected to air inlet
Several interconnecting pieces 42 of profile, the impeller 2 are installed on mounting portion 41.
The quantity of the interconnecting piece 42 is equal with the quantity of circular arc 3 described in several segments, and the interconnecting piece 42 is connected to phase
The junction of adjacent two sections of circular arcs 3.
The inside of the shell 1 is successively arranged climbing area 5, the area Ji Feng 6,11 and of the air outlet by the direction that gas flows
Tongue mouth 7, the tongue mouth 7 are located at air outlet, and the tongue mouth 7 and the area Ji Feng 6 are located at the two sides of the air outlet.
When it is implemented, the shape of the structure in the climbing area 5, the structure in the area Ji Feng 6 and the tongue mouth is existing
Technology thus do not repeat, such as the China Patent No. CN101649845B announced.
When the revolving speed of impeller is 4500RPM, the size of blower fan is 70mm × 70mm × 6mm, i.e., blower fan is a length of
70mm, width 70mm, highly for 6mm when, the diameter of the number of segment of the circular arc of the air inlet profile of the present embodiment, impeller and air inlet
Table 1 for example than the relationship between the noise of blower fan, as can be known from Table 1 when the number of segment of circular arc be 3 sections or 5 sections when, impeller and into
The diameter in air port than it is identical when, the noise that generates at this time is minimum.
Table 1
When the revolving speed of impeller is 4500RPM, the size of blower fan is 70mm × 70mm × 6mm, i.e., blower fan is a length of
70mm, width 70mm, highly for 6mm when, the diameter of the number of segment of the circular arc of the air inlet profile of the present embodiment, impeller and air inlet
Table 2 for example than the relationship between the air quantity of blower fan, as can be known from Table 2 when the number of segment of circular arc be 3 sections or 5 sections when, impeller and into
When the diameter ratio in air port is 1:0.7, the air quantity of blower fan is up to 4.9CFM at this time.
Table 2
Working principle of the present invention is as follows: blower fan work when, air-flow under the drive of impeller from main air inlet and time into
Air port enters enclosure interior, since the diameter of the arc section of two air inlets is different, so that the gas of air inlet be made to disperse stream
Enter in shell, reduce the pressure that air-flow flows into blower fan, have the effect of noise reduction, into the intracorporal gas of shell by climbing area
The outflow of sum aggregate wind Qu Houcong air outlet.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure transformation made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (7)
1. a kind of blower fan, including shell (1) and positioned at the impeller (2) of the inside of the shell, it is characterised in that: the shell
Equipped at least one air outlet (11) and at least one air inlet, the air inlet is connected to the impeller, the impeller and institute
Air outlet connection is stated, the profile of the air inlet includes the different circular arc of several segments diameter (3).
2. blower fan according to claim 1, it is characterised in that: the diameter of the impeller and air inlet ratio is 1:
0.4-1:1。
3. blower fan according to claim 1, it is characterised in that: the shell is set there are two opposite surface, two phases
Pair surface be respectively equipped with air inlet, the air outlet is located at the side wall of the shell.
4. blower fan according to claim 3, it is characterised in that: an air inlet in two air inlets is equipped with
Mounting rack, the impeller are installed on mounting rack, and the air inlet that mounting rack is equipped in two air inlets is time air inlet (12), and
Another air inlet is main air inlet (13).
5. blower fan according to claim 1, it is characterised in that: the profile of the air inlet includes that 2-12 sections of diameters are different
Circular arc.
6. blower fan according to claim 4, it is characterised in that: the mounting rack includes a mounting portion (41) and pacifies certainly
Dress portion is to air inlet contour extension and is connected to several interconnecting pieces (42) of air inlet profile, and the impeller is installed on installation
Portion.
7. blower fan according to claim 1, it is characterised in that: press the direction of gas flowing successively in the inside of the shell
Be located at air outlet equipped with climbing area (5), Ji Fengqu (6), the air outlet and tongue mouth (7), the tongue mouth, and the tongue mouth with
The Ji Fengqu is located at the two sides of the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097955.6A CN109538515A (en) | 2019-01-31 | 2019-01-31 | Blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097955.6A CN109538515A (en) | 2019-01-31 | 2019-01-31 | Blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538515A true CN109538515A (en) | 2019-03-29 |
Family
ID=65838859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910097955.6A Pending CN109538515A (en) | 2019-01-31 | 2019-01-31 | Blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538515A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9001399A (en) * | 1990-06-20 | 1992-01-16 | Kleis Van Der Giesen | Air blower and inlet for gas furnace - includes fan wheel driven by motor eccentrically in flange plate, and throttle valves to regulate burner air flow |
| CN101078409A (en) * | 2007-07-02 | 2007-11-28 | 中国船舶重工集团公司第七一二研究所 | Low-noise fanner |
| US20120148394A1 (en) * | 2010-12-14 | 2012-06-14 | Delta Electronics, Inc. | Centrifugal fan |
| CN204716625U (en) * | 2015-06-30 | 2015-10-21 | 淄博气宇空调节能设备有限公司 | The fresh air ventilator blower fan crust of weathering |
| CN105952685A (en) * | 2016-06-23 | 2016-09-21 | 常山卫邦风机有限公司 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
| CN209444594U (en) * | 2019-01-31 | 2019-09-27 | 苏州柯琳艾尔智能科技有限公司 | Blower fan |
-
2019
- 2019-01-31 CN CN201910097955.6A patent/CN109538515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9001399A (en) * | 1990-06-20 | 1992-01-16 | Kleis Van Der Giesen | Air blower and inlet for gas furnace - includes fan wheel driven by motor eccentrically in flange plate, and throttle valves to regulate burner air flow |
| CN101078409A (en) * | 2007-07-02 | 2007-11-28 | 中国船舶重工集团公司第七一二研究所 | Low-noise fanner |
| US20120148394A1 (en) * | 2010-12-14 | 2012-06-14 | Delta Electronics, Inc. | Centrifugal fan |
| CN204716625U (en) * | 2015-06-30 | 2015-10-21 | 淄博气宇空调节能设备有限公司 | The fresh air ventilator blower fan crust of weathering |
| CN105952685A (en) * | 2016-06-23 | 2016-09-21 | 常山卫邦风机有限公司 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
| CN209444594U (en) * | 2019-01-31 | 2019-09-27 | 苏州柯琳艾尔智能科技有限公司 | Blower fan |
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