CN110985444B - Fan and fan assembly - Google Patents
Fan and fan assembly Download PDFInfo
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- CN110985444B CN110985444B CN202010011537.3A CN202010011537A CN110985444B CN 110985444 B CN110985444 B CN 110985444B CN 202010011537 A CN202010011537 A CN 202010011537A CN 110985444 B CN110985444 B CN 110985444B
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- air inlet
- fan
- flow guide
- air
- shell
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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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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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
- F04D29/66—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan and a fan assembly, and relates to the technical field of rail transit. The main technical scheme of the invention is as follows: the fan comprises a shell, a fan impeller and a flow guide piece, wherein the shell is provided with an accommodating space, the fan impeller is arranged in the accommodating space, and the shell is provided with an air inlet and an air outlet; the flow guide piece is arranged at the air inlet, the flow guide piece at least covers part of the air inlet, a plurality of flow guide holes are formed in the flow guide piece along the air inlet direction, and the flow guide holes are communicated with the accommodating space and used for guiding air. The fan provided by the invention is provided with the guide holes on the guide piece along the air inlet direction, so that the inlet air flow at the air inlet enters the accommodating space through the guide holes, a directionally-limited channel for the inlet air flow to enter the accommodating space is provided, the vortex is prevented from being generated at the air inlet, and the inlet air flow cannot collide with the fan impeller strongly to generate noise after entering the accommodating space.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a fan and a fan assembly.
Background
Fans are needed in cooling and heating systems in the rail transit industry, centrifugal fans or axial flow fans are mostly adopted, the noise of the fans is related to the comfort level of passengers, and the fans are usually installed and used along with a vehicle body in the rail transit industry, so that the limitation of the installation space of the fans is limited, and large airflow noise and even pure sound are easily generated.
For example: fig. 1 shows centrifugal fan, fan 1 ' need set up in the cover body or box in the use, and then install on the automobile body again, because the installation space restriction, the air intake 2 ' of fan 1 ' side is more close with the wall that air intake 2 ' is just right to apart from the outside cover body or box, should avoid hindering the air current in the air inlet direction for the air current takes place rotatoryly, produce the vortex at air intake 2 ' promptly, the rotatory fan wheel 3 ' of vortex gas striking just produces higher air current noise easily, thereby influence passenger's the experience of taking.
Disclosure of Invention
In view of this, the embodiment of the invention provides a fan and a fan assembly, and mainly aims to solve the problem that when an existing fan is installed in a matching manner with a cover body in the rail transit industry, due to the fact that an installation space is limited, the distance between an air inlet of the fan and the wall surface of the cover body is small, eddy currents are easily generated, and then large noise is generated.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a fan, which comprises a shell and a fan impeller, wherein the shell is provided with an accommodating space, the fan impeller is arranged in the accommodating space, and the shell is provided with an air inlet and an air outlet; wherein:
the air inlet is arranged at the bottom of the shell, the air inlet is arranged at the top of the shell, the air inlet is arranged at the bottom of the shell, the air guide piece is arranged at the air inlet, the air guide piece covers at least part of the air inlet, a plurality of guide holes are formed in the air guide piece along the air inlet direction, and the guide holes are communicated with the accommodating space and used for guiding air to enter.
Optionally, the blower, wherein the flow guide comprises at least a first surface and a second surface;
the first surface faces the air inlet and is used for being connected with the shell on the circumferential direction of the air inlet;
the second surface is opposite to the first surface in the direction far away from the air inlet, and the flow guide hole penetrates through the second surface and the first surface along the air inlet direction.
Optionally, in the blower, an orthographic projection of the second surface toward the air inlet completely coincides with an orthographic projection of the first surface toward the air inlet.
Optionally, the fan further comprises a third surface;
the third surface is an annular surface, and two ends of the third surface are respectively connected with the circumferential edge of the first surface and the circumferential edge of the second surface;
the orthographic projection of the second surface facing the air inlet is at least partially overlapped with the orthographic projection of the first surface facing the air inlet.
Optionally, in the blower, the second surface is provided with a plurality of the flow guide through holes; or
The second surface and the third surface are both provided with a plurality of flow guide holes.
Optionally, in the blower, the third surface is an arc surface or a flat surface.
Optionally, in the above-mentioned fan, a hollow area is provided on the flow guide member, and the hollow area is provided at a position corresponding to the middle of the flow guide member and the air inlet.
Optionally, the fan further includes an installation plate;
the first side of mounting panel with the first surface meets, on the mounting panel with its first side second side that carries on the back mutually with air intake circumference's shell meets.
Optionally, in the blower, the mounting plate is an annular plate, and the annular plate is connected to the circumferential outer shell of the air inlet; alternatively, the first and second electrodes may be,
the mounting plate comprises at least two sub-mounting plates which are arranged on two opposite sides of the air inlet along the circumferential direction of the vertical air inlet.
In another aspect, the present invention provides a fan assembly comprising any one of the fans described above;
the cover body covers the fan.
The fan and the fan assembly provided by the embodiment of the invention at least have the following beneficial effects: in order to solve the problem that when the existing fan is installed in a matched manner with a cover body in the rail transit industry, due to the fact that the installation space is limited, when the distance between an air inlet of the fan and the wall surface of the cover body is small, eddy current is easy to generate, and then large noise is generated, the guide piece is arranged at the air inlet, and the guide hole is formed in the guide piece along the air inlet direction, so that air inlet airflow at the air inlet enters the accommodating space through the guide hole, a channel for the air inlet airflow to enter the accommodating space is provided, the eddy current is prevented from being generated at the air inlet, and the air inlet airflow cannot be in strong impact with a fan impeller to generate noise after entering the accommodating space.
Drawings
FIG. 1 is a schematic structural diagram of a conventional centrifugal fan;
fig. 2 is a schematic structural diagram of a fan according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a flow guide in a wind turbine according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second flow guide in a blower according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a third flow guide in a blower fan according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a fourth flow guide in a blower according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a fifth flow guide in a blower according to an embodiment of the invention;
FIG. 8 is a schematic cross-sectional view of a sixth flow guide in a blower according to an embodiment of the invention;
fig. 9 is a schematic cross-sectional view of a seventh flow guide in a blower according to an embodiment of the present invention;
in the figure: fan 1 ' (1), air intake 2 ' (2), fan wheel 3 ' (3), shell 4, water conservancy diversion spare 5, water conservancy diversion hole 51, first surface 52, third surface 54, hollow area 55, air outlet 6, mounting panel 7.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the fan and the fan assembly according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In order to solve the technical problems, the embodiment of the invention has the following general idea:
example 1
Referring to fig. 2, the present invention provides a fan 1, which includes a housing 4, a fan impeller 3 and a flow guiding member 5, wherein the housing 4 has a receiving space, the fan impeller 3 is disposed in the receiving space, and the housing 4 has an air inlet 2 and an air outlet 6; the diversion piece 5 is arranged at the air inlet 2, the diversion piece 5 at least covers a part of the air inlet 2, a plurality of diversion holes 51 are formed in the diversion piece 5 along the air inlet direction, and the diversion holes 51 are communicated with the accommodating space and used for diversion air inlet.
Specifically, in order to solve the problem that when the existing fan is installed in a matching manner with a cover body in the rail transit industry, due to the fact that the installation space is limited, when the distance between an air inlet of the fan and the wall surface of the cover body is small, eddy currents are easy to generate, and then large noise is generated, the invention provides the fan 1, the flow guide piece 5 is arranged at the air inlet 2 of the fan 1, the flow direction of inlet air flow is limited by the flow guide piece 5 through the flow guide holes 51 formed in the flow guide piece, the inlet air flow is guaranteed not to generate the eddy currents at the air inlet 2, and then the noise of the fan 1 is reduced.
The fan 1 may be a centrifugal fan or an axial flow fan, and both of the above two fans are common mechanical devices of those skilled in the art, and are not described herein in detail, and the following embodiments are exemplified by centrifugal fans in detail. The shell 4 of the fan 1 has the same function as the shell of the fan in the prior art, and is used for accommodating the fan impeller 3 and/or the driving motor, the embodiment of the invention is not exceptional, the fan impeller 3 is accommodated in the shell 4, and the driving motor can be arranged in an accommodating space of the shell 4, or arranged on the side wall of the shell 4 opposite to the air inlet 2, so that the limitation is not too much; in the present embodiment, the housing 4 is formed in a volute shape for a centrifugal fan. The air inlet 2 and the air outlet 6 are arranged in the same manner as in the prior art, in this embodiment, for the centrifugal fan, the air inlet 2 is arranged as a transverse air inlet, the air outlet 6 is arranged as a longitudinal air outlet, and the above arrangement is a setting manner known by those skilled in the art, and thus, too many descriptions are not repeated here. Fan wheel 3 is the same with fan wheel among the prior art, all is driven by driving motor in the accommodation space of shell 4 and uses the axial of air intake 2 as the axle and rotate and through the air-out of air outlet 6, does not do too much to describe here. The guide member 5 at least partially covers the air inlet 2, the guide member 5 is arranged to provide a channel with a direction limitation for the air inlet 2, so as to prevent the air inlet 2 from generating a vortex, on one hand, the guide member 5 can structurally play a role in guiding the air through the guide holes 51 to reduce noise, and can also play a role in absorbing sound through a special material mode to play a role in reducing noise, for example: the non-metallic materials such as silica gel or Ethylene Propylene Diene Monomer (EPDM) or polyurethane which are internally foamed can play a role in sound absorption and reduce the whole weight of the fan; the diversion part 5 can partially cover the air inlet 2 and can also completely cover the air inlet 2, and according to the air inlet quantity, if the required air inlet quantity is larger, the diversion part 5 does not need to completely cover the air inlet 2, so that the uncovered part of the air inlet quantity is larger, and the covered part of the air inlet quantity avoids generating vortex; if the requirement for the air intake is not large, the flow guide member 5 can completely cover the air inlet 2, and all the inlet air flow can enter the accommodating space only through the flow guide holes 51, so that the effect of reducing noise is enhanced.
The diameter of the diversion holes 51 is selected between 1 mm and 15mm according to the requirement of the air intake, and the diameter of the diversion holes 51 is correspondingly designed to be larger if the requirement of the air intake is larger; the diameter of the diversion hole 51 is set to 5mm according to the air intake requirement of the common rail transit.
According to the above list, the fan 1 provided by the invention is provided with the flow guide member 5 at the air inlet 2, and the flow guide member 5 is provided with the flow guide hole 51 along the air inlet direction, so that the inlet air flow at the air inlet 2 enters the accommodating space through the flow guide hole 51, and provides a direction-limiting channel for the inlet air flow to enter the accommodating space, thereby preventing the vortex from being generated at the air inlet 2, and further preventing the inlet air flow from generating strong impact with the fan impeller 3 to generate noise after entering the accommodating space.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: a and B can be contained simultaneously, A can exist independently, B can exist independently, and any one of the three conditions can be met; wherein the inside and outside are referenced to the inside and outside in the actual installation.
Further, as shown in fig. 2 and fig. 3, in a fan 1 according to an embodiment of the present invention, in a specific implementation, the flow guide member 5 includes at least a first surface 52 and a second surface 53; the first surface 51 faces the air inlet 2, and the first surface 52 is used for connecting with the outer shell 4 around the air inlet 52; the second surface 53 is disposed opposite to the first surface 52 in a direction away from the air inlet 2, and the guiding hole 51 penetrates through the second surface 53 and the first surface 52 along the air inlet direction.
Specifically, in order to ensure that the effective area of the diversion hole 51 is as large as possible, so as to enhance the noise reduction effect, in this embodiment, the diversion member 5 is configured to include at least a planar first surface 52 and a non-planar second surface 53, the first surface 52 is circular, rectangular or any other shape, the first surface 52 is connected to the housing 4 around the air inlet 2, the second surface 53 is disposed opposite to the first surface 52 in a direction away from the air inlet 2, and the diversion hole 51 is communicated with the accommodating space through the second surface 53 and the first surface 51; specifically, an orthographic projection of the second surface 53 towards the air inlet 2 and an orthographic projection of the first surface 52 towards the air inlet 2 are completely coincident, that is to say: referring to fig. 2, 3 and 4, in the cross-sectional views of the flow guiding device 5 formed by the second surface 53 and the third surface 52, the second surface 53 protrudes outward (protrudes in opposite directions in the upper and lower directions in fig. 2) of the periphery of the air inlet 2 to form a semi-circle as shown in fig. 2, so that the flow guiding device 5 has a semi-sphere shape, and the flow guiding holes 51 can be formed on the whole sphere; or the second surface 53 is close to the center of the air inlet 2 (fig. 3 is close to each other at the upper and lower sides and intersects at the side far from the air inlet 2), so as to form a semi-circular tent shape as shown in fig. 3, and the diversion holes 51 may be arranged on the whole second surface 52; or the second surfaces 53 intersect on the side away from the air inlet 2, and the middle part extends along a straight line to form a triangle as shown in fig. 4, the flow guide member 5 is conical, and the flow guide hole 51 can be arranged on the whole conical surface.
Further, as shown in fig. 2, a fan 1 according to an embodiment of the present invention further includes a mounting plate 7; the first side of the mounting plate 7 is connected to the first surface 52, and the second side of the mounting plate 7, which is opposite to the first side, is connected to the circumferential housing 4 of the air inlet 2.
Specifically, in order to ensure that the diversion element 5 is stably connected with the housing 4 and detachably connected, in this embodiment, the mounting plate 7 is arranged, and the mounting plate 7 is of a planar plate-shaped structure and is arranged between the housing 4 and the diversion element 5 to realize indirect connection between the housing 4 and the diversion element 5; the mounting plate 7 is an annular plate, the annular center of the mounting plate corresponds to the air inlet 2, and the connection with the flow guide piece 5 is further realized on the circumferential shell 4 of the air inlet 2; alternatively, the mounting plate 7 comprises at least two sub-mounting plates 71, and the two sub-mounting plates 71 are oppositely arranged on the circumferential outer shell 4 of the air inlet 2, so as to realize the connection with the flow guide member 5; for example: as shown in fig. 2, the sub-mounting plates 71 are respectively disposed on the circumferential casing 4 of the intake vent 2 in the up-down direction; obviously, in order to ensure that the air flow is diverted and swirled again at a position where there is no sub-mounting plate 71 between the outer casing 4 and the air guide 5, the air guide 5 at this position is extended toward the side of the air inlet 2 until it interferes with the circumferential outer casing 4 of the air inlet 2. The connection mode between the mounting plate 7 and/or the sub-mounting plate 71 and the housing 4 and the flow guide member 5 is not particularly limited, and may be bonding, and the bonding material needs to meet the environmental protection and the adhesion requirements of rail transit, for example: 401 glue, 401 glue is a main high-strength, fast adhesive taking alpha-cyano methyl acrylate as a main part, can be used for the high-speed bonding work of various materials, and is particularly suitable for the wood industry; for tight adhesion, porous materials such as rubber, metal, plastic, wood, etc. can achieve the strongest adhesion effect.
Example 2
Based on example 1. Further, as shown in fig. 2 and fig. 3, the fan 1 according to an embodiment of the present invention further includes a third surface 54; the third surface 54 is an annular surface, and two ends of the third surface 54 are respectively connected with the circumferential edge of the first surface 52 and the circumferential edge of the second surface 53; an orthographic projection of the second surface 53 towards the air inlet opening 2 at least partially coincides with an orthographic projection of the first surface 52 towards the air inlet opening 2.
Specifically, in order to ensure that the air guiding element 5 does not obstruct the installation due to the excessive occupied space when the shells are fitted, in this embodiment, the second surface 53 is configured to be a plane, and the center of the second surface 53 is opposite to the center of the first surface 52, so as to save the space outside the air inlet 2, the second surface 53 may be circular, rectangular, or any other shape, and the first surface 52 and the second surface 53 are also configured oppositely, so that the second surface cannot be suspended, and therefore, the third surface 54 is disposed between the second surface 53 and the first surface 52, and the third surface 54 connects the first surface 52 and the third surface 53 in the circumferential direction of the air inlet 2; wherein, the orthographic projection of the second surface 53 facing the air inlet 2 is at least partially overlapped with the orthographic projection of the first surface 52 facing the air inlet 2, that is, the area of the second surface 53 is smaller than or equal to the area of the first surface 52; when the area of the second surface 53 is equal to the area of the first surface 52, referring to fig. 9, it is described that the second surface 53 and the first surface 52 are opposite and equal in size, the third surface 54 is perpendicular to both the first surface 52 and the second surface 53, and the flow guide member 5 is cylindrical, in this arrangement, the flow guide holes 51 cannot be formed in the third surface 54 along the air inlet direction, i.e., the direction from the second surface 53 to the first surface 52, and therefore, only a plurality of flow guide holes 51 can be formed in the second surface 53.
When the area of the second surface 53 is smaller than the area of the first surface 52, the flow guide holes 51 are formed in both the second surface 52 and the third surface 54; referring to fig. 6, 7 and 8, the third surface 3 forms a table-shaped body between the first surface 52 and the second surface 53 with a certain angle therebetween, and at this time, the third surface 54 and the second surface 53 may be provided with the diversion holes 51, thereby increasing the effective area for providing the diversion holes 51; specifically, when the third surface 54 is an arc-shaped surface, the third surface 54 may protrude outward in the circumferential direction of the air inlet 2, or protrude toward the center of the air inlet, so as to form a table-shaped structure shown in fig. 6 and 7; or the third surface 54, extends in a linear direction between the first surface 52 and the second surface 53, in which case, with reference to fig. 8, the baffle 5 is of frustoconical configuration.
Example 3
On the basis of embodiment 2, as shown in fig. 5 to 9, in a specific implementation of the fan 1 according to an embodiment of the present invention, a hollow area 55 is provided on the flow guide 5, and the hollow area 55 is disposed at a position of the flow guide 5 corresponding to the middle of the air inlet 2.
Specifically, the eddy generated in the middle of the air inlet 2 is less, so that the weight of the whole device is reduced on the premise of ensuring noise reduction, in this embodiment, a hollow area 55 is arranged on the flow guide piece 5, the hollow area 55 penetrates through the flow guide piece 5 along the air inlet direction to serve as a main air inlet of the flow guide piece 5, and the center of the hollow area 55 is just opposite to the center of the air inlet 2; the hollow area 55 may be cylindrical or other tubular, and is not limited herein; when the hollow area 55 is cylindrical, the radius of the hollow area 55 is 1/4-1/2 of the radius of the intake vent 2.
Example 4
Further, an embodiment of the present invention provides a fan assembly, which includes:
the fan 1 and the cover of any of embodiments 1-3, the cover is disposed outside the fan 1 to form an integral fan assembly for integral installation or assembly.
Specifically, the fan 1 described in this embodiment may directly adopt any one of the fans 1 provided in the above embodiments 1 to 3, or the fan 1 obtained by combining the embodiments 1 to 3, and the specific implementation structure may refer to the relevant contents described in the above embodiments 1 to 3, which is not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (9)
1. A fan is used in the rail transit industry and comprises a shell and a fan impeller, wherein the shell is provided with a containing space, the fan impeller is arranged in the containing space, and the shell is provided with an air inlet and an air outlet; the method is characterized in that:
the air inlet is arranged in the air inlet, the air inlet is at least partially covered by the flow guide piece, a plurality of flow guide holes are formed in the flow guide piece along the air inlet direction, and the flow guide holes are communicated with the accommodating space and used for guiding the inlet air; the diameter of the flow guide hole is 5 mm;
the flow guide piece is provided with a hollow area, and the hollow area is arranged at the position of the flow guide piece corresponding to the middle part of the air inlet;
the flow guide piece is made of a non-metal material foamed inside silica gel, ethylene propylene diene monomer or polyurethane.
2. The fan of claim 1, wherein:
the flow guide comprises at least a first surface and a second surface;
the first surface faces the air inlet and is used for being connected with the shell on the circumferential direction of the air inlet;
the second surface is opposite to the first surface in the direction far away from the air inlet, and the flow guide hole penetrates through the second surface and the first surface along the air inlet direction.
3. The fan of claim 2, wherein:
the orthographic projection of the second surface facing the air inlet is completely coincident with the orthographic projection of the first surface facing the air inlet.
4. The fan of claim 2, wherein:
further comprising a third surface;
the third surface is an annular surface, and two ends of the third surface are respectively connected with the circumferential edge of the first surface and the circumferential edge of the second surface;
the orthographic projection of the second surface facing the air inlet is at least partially overlapped with the orthographic projection of the first surface facing the air inlet.
5. The fan of claim 4, wherein:
the second surface is provided with a plurality of flow guide holes; or
The second surface and the third surface are both provided with a plurality of flow guide holes.
6. The fan of claim 5, wherein:
the third surface is an arc surface or a flat surface.
7. The fan of claim 2, wherein:
the device also comprises a mounting plate;
the first side of mounting panel with the first surface meets, on the mounting panel with its first side second side that carries on the back mutually with air intake circumference's shell meets.
8. The fan of claim 7, wherein:
the mounting plate is an annular plate, and the annular plate is connected with the circumferential shell of the air inlet; alternatively, the first and second electrodes may be,
the mounting plate comprises at least two sub-mounting plates which are arranged on two opposite sides of the air inlet along the circumferential direction of the vertical air inlet.
9. A fan assembly, comprising:
the blower of any one of claims 1-8;
the cover body covers the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011537.3A CN110985444B (en) | 2020-01-06 | 2020-01-06 | Fan and fan assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011537.3A CN110985444B (en) | 2020-01-06 | 2020-01-06 | Fan and fan assembly |
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| CN110985444A CN110985444A (en) | 2020-04-10 |
| CN110985444B true CN110985444B (en) | 2022-04-19 |
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| CN202010011537.3A Active CN110985444B (en) | 2020-01-06 | 2020-01-06 | Fan and fan assembly |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215062456U (en) * | 2020-11-10 | 2021-12-07 | 陈志群 | Air disinfection and purification module and vertical cabinet type air conditioner |
| CN114738301B (en) * | 2021-08-06 | 2023-11-03 | 宁波生久科技有限公司 | Blowing type radiator fan |
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| CN106438491A (en) * | 2016-07-18 | 2017-02-22 | 珠海格力电器股份有限公司 | Diversion loop, centrifugation blower fan and air-conditioning |
| CN208619392U (en) * | 2018-08-10 | 2019-03-19 | 河北众邦节能科技服务有限公司 | A kind of wing profiled orifice plate noise elimination flow-guiding structure air inlet chamber of fan |
| CN110017302A (en) * | 2018-01-10 | 2019-07-16 | 青岛海尔智慧厨房电器有限公司 | Blower and kitchen ventilator |
| CN110273846A (en) * | 2018-03-14 | 2019-09-24 | 建准电机工业股份有限公司 | Air-flow switch |
| WO2019196992A1 (en) * | 2018-04-09 | 2019-10-17 | Ziehl-Abegg Se | Fan and inflow grille for a fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210270Y (en) * | 1994-09-27 | 1995-10-18 | 西安交通大学 | Guiding flow and sound-adsorption device for centrifugal fan |
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2020
- 2020-01-06 CN CN202010011537.3A patent/CN110985444B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438491A (en) * | 2016-07-18 | 2017-02-22 | 珠海格力电器股份有限公司 | Diversion loop, centrifugation blower fan and air-conditioning |
| CN110017302A (en) * | 2018-01-10 | 2019-07-16 | 青岛海尔智慧厨房电器有限公司 | Blower and kitchen ventilator |
| CN110273846A (en) * | 2018-03-14 | 2019-09-24 | 建准电机工业股份有限公司 | Air-flow switch |
| WO2019196992A1 (en) * | 2018-04-09 | 2019-10-17 | Ziehl-Abegg Se | Fan and inflow grille for a fan |
| CN208619392U (en) * | 2018-08-10 | 2019-03-19 | 河北众邦节能科技服务有限公司 | A kind of wing profiled orifice plate noise elimination flow-guiding structure air inlet chamber of fan |
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| CN110985444A (en) | 2020-04-10 |
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