CN114776630A - Double-side air inlet fan for range hood and range hood - Google Patents

Double-side air inlet fan for range hood and range hood Download PDF

Info

Publication number
CN114776630A
CN114776630A CN202210683419.6A CN202210683419A CN114776630A CN 114776630 A CN114776630 A CN 114776630A CN 202210683419 A CN202210683419 A CN 202210683419A CN 114776630 A CN114776630 A CN 114776630A
Authority
CN
China
Prior art keywords
impeller
range hood
arc
annular
air
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
Application number
CN202210683419.6A
Other languages
Chinese (zh)
Inventor
任富佳
陈建卫
高少华
郑桐福
周海昕
余国成
付安荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Robam Appliances Co Ltd
Original Assignee
Hangzhou Robam Appliances Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Robam Appliances Co Ltd filed Critical Hangzhou Robam Appliances Co Ltd
Priority to CN202210683419.6A priority Critical patent/CN114776630A/en
Publication of CN114776630A publication Critical patent/CN114776630A/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • F04D29/40—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
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of intelligent household appliances, and particularly provides a bilateral air intake fan for a range hood and the range hood, which comprise: the air duct comprises an air duct shell, an impeller assembly arranged in the air duct shell, a motor connected with the impeller assembly and used for driving the impeller assembly to rotate, and a fixing support used for fixing the impeller assembly and the motor in the air duct shell; the impeller assembly comprises an impeller central disc and impellers symmetrically arranged on two sides of the impeller central disc; the impeller center disk is provided with a mounting hole connected with the motor and an annular panel connected with the impeller; the annular panel is provided with a concave-convex diversion structure which can enable the smoke to form vortex flow so as to be discharged in a diversion manner. According to the scheme of the invention, the smoke can not directly collide with the impeller center disk in the impeller assembly after entering the fan, a vortex can be quickly formed through the matching of the flow guide structure and the air guide structure, the smoke after forming the vortex can be quickly and smoothly discharged, and noise can not be generated in the period.

Description

Double-side air inlet fan for range hood and range hood
Technical Field
The invention relates to the technical field of intelligent household appliances, in particular to a double-side air inlet fan for a range hood and the range hood.
Background
The fan with air inlets at two sides has the middle part separating the air inlets at two sides by the middle disc, the motor adopts an outer rotor motor, the outer rotor is fixedly connected with the middle disc, and the middle disc is connected with the impeller of the fan. Because the middle disc is a plane circular plate, partial air flow directly impacts the surface of the middle disc after entering the fan from two sides to form turbulent flow, and the smoke exhaust efficiency is reduced.
Moreover, in the fan of putting in the motor, the left and right sides impeller passes through the center, and installs on the rotor of motor, and the flue gas gets into from the left and right sides air intake of fan, and the flue gas can strike the center, produces the sinuous flow, leads to wind to make an uproar greatly, influences the smoking effect. The motor casing is the column arch, links up with the center is perpendicular, and the flue gas striking is protruding, and wind is made an uproar greatly, and is difficult for discharging. In the prior art, additional blades are required, so that the cost is high.
Disclosure of Invention
The invention aims to solve at least one technical problem in the background technology and provides a double-side air inlet fan for a range hood and the range hood.
In order to achieve the above object, the present invention provides a bilateral air intake fan for a range hood, comprising: the air duct comprises an air duct shell, an impeller assembly arranged in the air duct shell, a motor connected with the impeller assembly and used for driving the impeller assembly to rotate, and a fixing support used for fixing the impeller assembly and the motor in the air duct shell;
the impeller assembly comprises an impeller central disc and impellers symmetrically arranged on two sides of the impeller central disc;
the impeller center plate is provided with a mounting hole connected with the motor and an annular panel connected with the impeller;
the annular panel is provided with a concave-convex diversion structure which can enable the smoke to form vortex flow so as to be discharged in a diversion manner.
According to one aspect of the invention, the annular panel comprises a first annular side and a second annular side;
the flow guide structure comprises a first flow guide structure arranged on the first annular side surface and a second flow guide structure arranged on the second annular side surface.
According to one aspect of the invention, the first flow guiding structures are a plurality of arc-shaped bulges arranged at intervals along the annular direction of the first annular side surface, and the second flow guiding structures are a plurality of arc-shaped grooves arranged at intervals along the annular direction of the second annular side surface.
According to one aspect of the invention, the first flow guiding structure is a combination structure of a plurality of arc-shaped bulges and a plurality of arc-shaped grooves which are arranged at intervals along the annular direction of the first annular side surface, and the second flow guiding structure is a combination structure of a plurality of arc-shaped bulges and a plurality of arc-shaped grooves which are arranged at intervals along the annular direction of the second annular side surface.
According to one aspect of the invention, the first flow guiding structure is a combination of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral grooves and/or spiral protrusions which are spaced and arranged at intervals along the annular direction of the first annular side surface, and the second flow guiding structure is a combination of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral grooves and/or spiral protrusions which are spaced and arranged at intervals along the annular direction of the second annular side surface.
According to an aspect of the invention, the first and second flow directing structures are symmetrically arranged with respect to each other on the annular panel.
According to one aspect of the invention, the smoke-guiding device further comprises a wind-guiding structure which is arranged on the impeller central disc, is connected with the motor and is used for guiding smoke.
According to one aspect of the invention, the air guide structure is symmetrically arranged at the mounting hole and is connected with the shell of the motor.
According to one aspect of the invention, the air guide structure is a truncated cone, and the diameter of the truncated cone installed at one end of the impeller center disk is larger than that of the end far away from the impeller center disk.
In order to achieve the purpose, the invention also provides a range hood which comprises the double-side air inlet fan for the range hood.
According to one scheme of the invention, the double-side air inlet fan for the range hood comprises: the air duct comprises an air duct shell, an impeller assembly arranged in the air duct shell 1, a motor connected with the impeller assembly and used for driving the impeller assembly to rotate, and a fixing support used for fixing the impeller assembly and the motor in the air duct shell. The impeller assembly comprises an impeller center plate and impellers symmetrically arranged on two sides of the impeller center plate. The impeller center disk is provided with a mounting hole connected with the motor and an annular panel connected with the impeller. The annular panel is provided with a flow guide structure for guiding flue gas. The flow guide structure is a groove structure or a protrusion structure or a combined structure of the groove structure and the protrusion structure. Due to the arrangement, when the motor rotates, the impeller center plate is driven to rotate, the concave-convex flow guide structure arranged in the form rotates along with the impeller center plate, and when smoke enters the fan, on one hand, the smoke is guided through the concave-convex flow guide structure, so that the smoke is prevented from directly impacting the impeller center plate, and noise is reduced; on the other hand, the concave-convex flow guide structure rotates, so that the smoke nearby the concave-convex flow guide structure forms a vortex, the smoke is smoothly discharged, and the smoking effect is ensured.
According to an aspect of the present invention, the first flow guide structures are a plurality of arc-shaped protrusions arranged at intervals in an annular direction of the first annular side surface (i.e., a circumferential direction of a circle formed by an annular surface thereof), and the second flow guide structures are a plurality of arc-shaped grooves arranged at intervals in an annular direction of the second annular side surface. Due to the arrangement, when the motor rotates, the impeller central disc is driven to rotate, the first flow guide structure and the second flow guide structure which are arranged in the above mode rotate along with the impeller central disc, and when smoke enters the fan, on one hand, the smoke is guided through the first flow guide structure and the second flow guide structure, so that the smoke is prevented from directly impacting the impeller central disc, and noise is reduced; on the other hand, the first flow guide structure and the second flow guide structure rotate to enable the smoke nearby the first flow guide structure and the second flow guide structure to form a vortex, so that the smoke is smoothly discharged, and the smoking effect is ensured.
According to one aspect of the present invention, the first flow guide structure is a combination of a plurality of arc-shaped protrusions and a plurality of arc-shaped grooves which are spaced and arranged at intervals along the annular direction of the first annular side surface (i.e., the circumferential direction of the circle formed by the annular surface thereof), i.e., the arc-shaped protrusions and the arc-shaped grooves are arranged at intervals in the circumferential direction, and each arc-shaped protrusion and each arc-shaped groove have a certain interval therebetween. Similarly, the second flow guiding structure is a combined structure of a plurality of arc-shaped bulges and a plurality of arc-shaped grooves which are arranged at intervals along the annular direction of the second annular side surface. Due to the arrangement, when the motor rotates, the impeller central disc is driven to rotate, the first flow guide structure and the second flow guide structure which are arranged in the above mode rotate along with the impeller central disc, and when smoke enters the fan, on one hand, the smoke is guided through the first flow guide structure and the second flow guide structure, so that the smoke is prevented from directly impacting the impeller central disc, and noise is reduced; on the other hand, the first flow guide structure and the second flow guide structure rotate to enable the smoke nearby the first flow guide structure and the second flow guide structure to form a vortex, so that the smoke is smoothly discharged, and the smoking effect is ensured.
According to one aspect of the invention, the first flow guiding structure is a combined structure of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral grooves and/or spiral protrusions which are arranged at intervals along the annular direction of the first annular side surface. The second flow guide structure is a combined structure of a plurality of arc-shaped grooves and/or arc-shaped bulges and a plurality of spiral grooves and/or spiral bulges which are arranged at intervals along the annular direction of the second annular side surface. According to the arrangement, when the motor rotates, the impeller center plate is driven to rotate, the first flow guide structure and the second flow guide structure which are arranged in the above mode rotate along with the impeller center plate, and when smoke enters the fan, on one hand, the smoke is guided through the first flow guide structure and the second flow guide structure, so that direct impact with the impeller center plate is avoided, and noise is reduced; on the other hand, the first flow guide structure and the second flow guide structure rotate to enable the smoke nearby the first flow guide structure and the second flow guide structure to form a vortex, so that the smoke is smoothly discharged, and the smoking effect is ensured.
According to one aspect of the invention, the first and second flow directing structures are symmetrically disposed with respect to each other on the annular panel. According to the arrangement, the dynamic balance of the fan can be ensured, so that the working efficiency is ensured, the noise is reduced, the smoke can be smoothly discharged, and the smoke discharging rate and the smoke discharging effect are ensured.
According to one scheme of the invention, the bilateral air inlet fan for the range hood further comprises: the air guide structure is arranged on the impeller central disc, is connected with the motor and is used for guiding the flue gas. Specifically, the air guide structure is symmetrically arranged at the mounting hole and connected with the shell of the motor. So set up, the position that the impeller center is close to the motor is provided with the air guide mechanism who is regarded as the transition piece, and this kind of structure is favorable to getting into the inside air current of impeller subassembly more smoothly, reduces the production of vortex.
According to one scheme of the invention, the air guide structure is a truncated cone, and the diameter of the truncated cone at one end of the impeller central disc is larger than that of the end of the truncated cone far away from the impeller central disc. So set up for this structure forms the wind-guiding structure of "flying saucer form", can make the flue gas along its side smooth motion, and the setting of above-mentioned water conservancy diversion structure can make the flue gas form the vortex fast then by the whole order discharge of share.
According to the scheme of the invention, the flue gas can not directly impact the impeller center disk in the impeller assembly after entering the fan, a vortex can be quickly formed through the matching of the flow guide structure and the air guide structure, the flue gas after the vortex is formed can be quickly and smoothly discharged, and noise can not be generated in the period. According to the scheme, the technical problems that in the prior art, the flue gas directly collides with the middle disc to generate turbulent flow and noise which are difficult to discharge, and the oil absorption effect is insufficient are solved.
Drawings
Fig. 1 is a perspective view schematically illustrating a double-side air intake fan for a range hood according to an embodiment of the present invention;
fig. 2 is an exploded view schematically illustrating a double-side air intake fan for a range hood according to an embodiment of the present invention;
FIGS. 3 and 4 schematically illustrate perspective views from both side views of an impeller assembly according to an embodiment of the present invention;
figures 5 and 6 schematically illustrate a side view in perspective of an impeller assembly according to another embodiment of the present invention;
figures 7 and 8 show schematically a perspective view from both sides of an impeller assembly according to a third embodiment of the invention;
fig. 9 is a perspective view schematically illustrating a double-side intake fan for a range hood according to an embodiment of the present invention;
figure 10 schematically shows a cross-sectional view of the impeller assembly of figure 9.
Detailed Description
The content of the invention will now be discussed with reference to exemplary embodiments. It is to be understood that the embodiments discussed are merely intended to enable one of ordinary skill in the art to better understand and thus implement the teachings of the present invention, and do not imply any limitations on the scope of the invention.
As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" is to be read as "based, at least in part, on". The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment".
Fig. 1 schematically shows a perspective view of a double-side air intake fan for a range hood according to an embodiment of the present invention, and fig. 2 schematically shows an exploded view of the double-side air intake fan for the range hood according to the embodiment of the present invention. As shown in fig. 1 and fig. 2, in this embodiment, the double-side air intake fan for the range hood is characterized by comprising: the air duct comprises an air duct shell 1, an impeller assembly 2 arranged in the air duct shell 1, a motor 3 connected with the impeller assembly 2 and used for driving the impeller assembly 2 to rotate, and a fixing support 4 used for fixing the impeller assembly 2 and the motor 3 in the air duct shell 1. In the present embodiment, the impeller assembly 2 includes an impeller center plate 201 and impellers 202 symmetrically disposed on both sides of the impeller center plate 201. The impeller center 201 has a mounting hole 2011 connected to the motor 3 and an annular face plate 2012 connected to the impeller 202. The annular panel 2012 is provided with a flow guiding structure 5 for guiding the flue gas. In the present embodiment, the flow guiding structure 5 is a groove structure or a protrusion structure or a combination structure of the groove structure and the protrusion structure. Due to the arrangement, when the motor 3 rotates, the impeller central disc 201 is driven to rotate, the concave-convex flow guide structure 5 arranged in the mode rotates along with the impeller central disc 201, and when smoke enters the fan, on one hand, the smoke is guided through the concave-convex flow guide structure 5, so that the smoke is prevented from directly impacting the impeller central disc 201, and noise is reduced; on the other hand, the concave-convex flow guide structure 5 rotates to enable the smoke nearby the concave-convex flow guide structure to form a vortex, so that the smoke is smoothly discharged, and the smoking effect is ensured.
Further, fig. 3 and 4 schematically show perspective views from two side views of an impeller assembly according to an embodiment of the invention. As shown in fig. 3 and 4, in the present embodiment, the annular panel 2012 includes a first annular side 2012a and a second annular side 2012 b. The flow directing structure 5 includes a first flow directing structure 501 disposed on the first annular side 2012a and a second flow directing structure 502 disposed on the second annular side 2012 b.
In this embodiment, the first flow guiding structures 501 are a plurality of arc-shaped protrusions arranged at intervals along the annular direction of the first annular side surface 2012a (i.e., the circumferential direction of the circle formed by the annular surface thereof), and the second flow guiding structures 502 are a plurality of arc-shaped grooves arranged at intervals along the annular direction of the second annular side surface 2012 b.
Due to the arrangement, when the motor 3 rotates, the impeller central disc 201 is driven to rotate, the first flow guide structure 501 and the second flow guide structure 502 which are arranged in the above mode rotate along with the impeller central disc 201, and when smoke enters the fan, on one hand, the smoke is guided through the first flow guide structure 501 and the second flow guide structure 502, so that direct impact with the impeller central disc 201 is avoided, and noise is reduced; on the other hand, the first flow guiding structure 501 and the second flow guiding structure 502 rotate, so that the smoke nearby the first flow guiding structure forms a vortex, the smoke is smoothly discharged, and the smoking effect is ensured.
Further, fig. 5 and 6 schematically show perspective views from both side views of an impeller assembly according to another embodiment of the invention. As shown in fig. 5 and 6, in the present embodiment, the first flow guiding structure 501 is a combination of a plurality of arc-shaped protrusions and a plurality of arc-shaped grooves which are arranged at intervals along the annular direction of the first annular side surface 2012a (i.e., the circumferential direction of the circle formed by the annular surface thereof), that is, the arc-shaped protrusions and the arc-shaped grooves are arranged at intervals in the circumferential direction, and each arc-shaped protrusion and each arc-shaped groove have a certain interval therebetween. Similarly, the second flow guiding structure 502 is a combination of a plurality of arc-shaped protrusions and a plurality of arc-shaped grooves spaced and spaced along the annular direction of the second annular side surface 2012 b.
Due to the arrangement, when the motor 3 rotates, the impeller central disc 201 is driven to rotate, the first flow guide structure 501 and the second flow guide structure 502 which are arranged in the above manner rotate along with the impeller central disc 201, and when smoke enters the fan, on one hand, the smoke is guided by the first flow guide structure 501 and the second flow guide structure 502, so that the smoke is prevented from directly impacting the impeller central disc 201, and noise is reduced; on the other hand, the first flow guiding structure 501 and the second flow guiding structure 502 rotate, so that the smoke nearby the first flow guiding structure forms a vortex, the smoke is smoothly discharged, and the smoking effect is ensured.
Further, fig. 7 and 8 schematically show perspective views in both side views of an impeller assembly according to a third embodiment of the present invention. As shown in fig. 7 and 8, in the present embodiment, the first flow guiding structure 501 is a combination structure of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral-shaped grooves and/or spiral-shaped protrusions which are spaced and arranged at intervals along the annular direction of the first annular side surface 2012 a. The second flow guiding structure 502 is a combination of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral-shaped grooves and/or spiral-shaped protrusions, which are spaced and spaced apart along the annular direction of the second annular side surface 2012 b.
That is, the first flow guiding structure 501 and the second flow guiding structure 502 may be: the structure that the arc-shaped groove is arranged at intervals with other shape grooves, the structure that the arc-shaped groove is arranged at intervals with other shape bulges, the structure that the arc-shaped bulge is arranged at intervals with other shape grooves, the structure that the arc-shaped bulge is arranged at intervals with other shape bulges, the structure that the arc-shaped groove and the arc-shaped bulge are arranged at intervals with other shape grooves, the structure that the arc-shaped groove and the arc-shaped bulge are arranged at intervals with other shape bulges, the structure that the arc-shaped groove and the arc-shaped bulge are arranged at intervals with other shape grooves and other shape bulges, or the structure that the arc-shaped groove and the arc-shaped bulge are arranged at intervals with other shape grooves and other shape bulges. That is, in the present embodiment, the first and second flow guide structures 501 and 502 may be a combination structure of grooves and/or protrusions of various shapes. In the present embodiment, the grooves and the protrusions in other shapes may be spiral grooves and spiral protrusions, that is, the grooves and the protrusions are arranged in a plane and present a distinct spiral bending shape. Of course, in the present invention, the grooves and the protrusions with other shapes may also be set to any other shape that can make the smoke form vortex and further flow, for example, the strip-shaped grooves or the strip-shaped protrusions with any shape, the strip-shaped grooves or the strip-shaped protrusions may be rectangular, rhombic, or long strips with two semicircular ends, etc.
Due to the arrangement, when the motor 3 rotates, the impeller central disc 201 is driven to rotate, the first flow guide structure 501 and the second flow guide structure 502 which are arranged in the above mode rotate along with the impeller central disc 201, and when smoke enters the fan, on one hand, the smoke is guided through the first flow guide structure 501 and the second flow guide structure 502, so that direct impact with the impeller central disc 201 is avoided, and noise is reduced; on the other hand, the first flow guiding structure 501 and the second flow guiding structure 502 rotate, so that the smoke nearby the first flow guiding structure forms a vortex, the smoke is smoothly discharged, and the smoking effect is ensured.
Further, in the impeller assembly 2 of the two embodiments shown in fig. 5 and 6 and fig. 7 and 8, the first flow guiding structure 501 and the second flow guiding structure 502 are symmetrically disposed on the annular panel 2012. According to the arrangement, the dynamic balance of the fan can be ensured, so that the working efficiency is ensured, the noise is reduced, the smoke can be smoothly discharged, and the smoke discharging rate and the smoke discharging effect are ensured.
Furthermore, fig. 9 schematically shows a perspective view of a double-side intake fan for a range hood according to an embodiment of the present invention, and fig. 10 schematically shows a cross-sectional view of the impeller assembly in fig. 9. As shown in fig. 9 and 10, in this embodiment, the double-side air intake fan for a range hood of the present invention further includes: the air guide structure 6 is arranged on the impeller central disc 201, is connected with the motor 3 and is used for guiding the flow of the flue gas. Specifically, the air guiding structure 6 is symmetrically disposed at the mounting hole 2011 and connected to the housing of the motor 3. So set up, the impeller center 201 is provided with the air guiding mechanism 6 as the transition piece near the position of motor 3, and this kind of structure is favorable to getting into the inside air current of impeller subassembly 2 more smoothly, reduces the production of vortex.
In the present embodiment, as shown in fig. 10, the air guide structure 6 is a truncated cone, and the diameter of the end of the truncated cone mounted on the impeller center plate 201 is larger than the diameter of the end thereof far from the impeller center plate 201. So set up for this structure forms the wind-guiding structure of "flying saucer form", can make the flue gas along its side smooth motion, and the setting of above-mentioned water conservancy diversion structure 5 can make the flue gas form the vortex fast then by the whole order discharge of share.
In order to achieve the purpose, the invention also provides a range hood comprising the double-side air inlet fan for the range hood.
According to the arrangement of the invention, the smoke can not directly collide with the impeller central disc 201 in the impeller assembly 2 after entering the fan, a vortex can be quickly formed through the matching of the guide structure 5 and the guide structure 6, the smoke after forming the vortex can be quickly and smoothly discharged, and no noise is generated in the period. According to the scheme, the technical problems that in the prior art, the flue gas directly collides with the middle disc to generate turbulent flow and noise which are difficult to discharge, and the oil absorption effect is insufficient are solved.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, while the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. Two side air intake fan for range hood, its characterized in that includes: the air channel comprises an air channel shell (1), an impeller assembly (2) arranged in the air channel shell (1), a motor (3) connected with the impeller assembly (2) and used for driving the impeller assembly (2) to rotate, and a fixing support (4) used for fixing the impeller assembly (2) and the motor (3) in the air channel shell (1);
the impeller assembly (2) comprises an impeller center disc (201) and impellers (202) symmetrically arranged on two sides of the impeller center disc (201);
the impeller center plate (201) is provided with a mounting hole (2011) connected with the motor (3) and an annular panel (2012) connected with the impeller (202);
the annular panel (2012) is provided with a concave-convex flow guide structure (5) which can enable the smoke to form a vortex so as to guide and discharge the smoke.
2. The double-sided intake air fan for the range hood according to claim 1, wherein the annular panel (2012) includes a first annular side surface (2012 a) and a second annular side surface (2012 b);
the flow guiding structure (5) comprises a first flow guiding structure (501) arranged on the first annular side surface (2012 a) and a second flow guiding structure (502) arranged on the second annular side surface (2012 b).
3. The double-sided intake air fan for the range hood according to claim 2, wherein the first flow guiding structure (501) is a plurality of arc-shaped protrusions arranged at intervals along the annular direction of the first annular side surface (2012 a), and the second flow guiding structure (502) is a plurality of arc-shaped grooves arranged at intervals along the annular direction of the second annular side surface (2012 b).
4. The double-sided air intake fan for the range hood according to claim 2, wherein the first air guiding structure (501) is a combination of a plurality of arc-shaped protrusions and a plurality of arc-shaped grooves spaced and arranged at intervals along the annular direction of the first annular side surface (2012 a), and the second air guiding structure (502) is a combination of a plurality of arc-shaped protrusions and a plurality of arc-shaped grooves spaced and arranged at intervals along the annular direction of the second annular side surface (2012 b).
5. The double-sided intake air fan for the range hood according to claim 2, wherein the first flow guide structure (501) is a combination structure of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral grooves and/or spiral protrusions which are spaced and arranged at intervals along the annular direction of the first annular side surface (2012 a), and the second flow guide structure (502) is a combination structure of a plurality of arc-shaped grooves and/or arc-shaped protrusions and a plurality of spiral grooves and/or spiral protrusions which are spaced and arranged at intervals along the annular direction of the second annular side surface (2012 b).
6. The double-sided intake air blower for the range hood according to claim 4 or 5, wherein the first flow guide structure (501) and the second flow guide structure (502) are symmetrically disposed on the annular panel (2012).
7. The double-side air intake fan for the range hood according to claim 1, further comprising an air guide structure (6) disposed on the impeller center (201) and connected to the motor (3) for guiding the flow of the flue gas.
8. The double-sided air intake fan for the range hood according to claim 7, wherein the air guiding structure (6) is symmetrically disposed at the mounting hole (2011) and connected to the housing of the motor (3).
9. The double-sided air intake fan for the range hood according to claim 8, wherein the air guiding structure (6) is a truncated cone, and a diameter of an end of the truncated cone installed on the impeller center disk (201) is larger than a diameter of an end of the truncated cone far away from the impeller center disk (201).
10. A range hood, characterized by comprising the double-sided air intake fan for the range hood as recited in any one of claims 1 to 9.
CN202210683419.6A 2022-06-17 2022-06-17 Double-side air inlet fan for range hood and range hood Pending CN114776630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210683419.6A CN114776630A (en) 2022-06-17 2022-06-17 Double-side air inlet fan for range hood and range hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210683419.6A CN114776630A (en) 2022-06-17 2022-06-17 Double-side air inlet fan for range hood and range hood

Publications (1)

Publication Number Publication Date
CN114776630A true CN114776630A (en) 2022-07-22

Family

ID=82420300

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210683419.6A Pending CN114776630A (en) 2022-06-17 2022-06-17 Double-side air inlet fan for range hood and range hood

Country Status (1)

Country Link
CN (1) CN114776630A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117386643A (en) * 2023-08-03 2024-01-12 贝德凯利电气(苏州)有限公司 High-voltage direct-current fan

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957988A1 (en) * 1969-11-18 1971-06-03 Wilhelm Gronbach Plastic fan wheel for fume extraction-or - oil burner-fan
CN202646160U (en) * 2011-12-08 2013-01-02 袁利樑 A spiral pressurization wind wheel device
CN104791296A (en) * 2015-01-13 2015-07-22 宁波方太厨具有限公司 Structure of centrifugal fan impeller
CN104806567A (en) * 2014-01-23 2015-07-29 珠海格力电器股份有限公司 Centrifugal fan blade, centrifugal fan and air conditioner
CN209115392U (en) * 2018-09-28 2019-07-16 浙江绍兴苏泊尔生活电器有限公司 Range hood fan and centrifugal impeller thereof
CN212003716U (en) * 2020-02-27 2020-11-24 宁波方太厨具有限公司 Impeller of centrifugal fan and range hood with same
CN213899381U (en) * 2020-09-08 2021-08-06 华帝股份有限公司 Wind wheel and have its cigarette machine
CN216111440U (en) * 2020-12-19 2022-03-22 泰州市博世特精密铸造有限公司 Semi-open impeller
CN216867082U (en) * 2022-03-02 2022-07-01 杭州老板电器股份有限公司 Motor impeller and fan

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957988A1 (en) * 1969-11-18 1971-06-03 Wilhelm Gronbach Plastic fan wheel for fume extraction-or - oil burner-fan
CN202646160U (en) * 2011-12-08 2013-01-02 袁利樑 A spiral pressurization wind wheel device
CN104806567A (en) * 2014-01-23 2015-07-29 珠海格力电器股份有限公司 Centrifugal fan blade, centrifugal fan and air conditioner
CN104791296A (en) * 2015-01-13 2015-07-22 宁波方太厨具有限公司 Structure of centrifugal fan impeller
CN209115392U (en) * 2018-09-28 2019-07-16 浙江绍兴苏泊尔生活电器有限公司 Range hood fan and centrifugal impeller thereof
CN212003716U (en) * 2020-02-27 2020-11-24 宁波方太厨具有限公司 Impeller of centrifugal fan and range hood with same
CN213899381U (en) * 2020-09-08 2021-08-06 华帝股份有限公司 Wind wheel and have its cigarette machine
CN216111440U (en) * 2020-12-19 2022-03-22 泰州市博世特精密铸造有限公司 Semi-open impeller
CN216867082U (en) * 2022-03-02 2022-07-01 杭州老板电器股份有限公司 Motor impeller and fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117386643A (en) * 2023-08-03 2024-01-12 贝德凯利电气(苏州)有限公司 High-voltage direct-current fan

Similar Documents

Publication Publication Date Title
CN100559032C (en) Centrifugal fan and the air conditioner that uses this centrifugal fan
JP4993791B2 (en) Fan, molding die and fluid feeder
CN102032211B (en) Biconical impeller for range hood
CN108825552B (en) Air treatment equipment, fan and centrifugal fan blade thereof
CN114776630A (en) Double-side air inlet fan for range hood and range hood
CN106593950B (en) Blade, centrifugal fan impeller, centrifugal fan and range hood
CN108019363B (en) Fan device and smoke machine
JPH08200283A (en) Cross-flow fan and air conditioner provided with it
CN107339241B (en) Multi-wing centrifugal fan
JP2000145690A (en) Electric blower and vacuum cleaner with the same
CN110857789B (en) Fume exhauster
CN219865578U (en) Centrifugal fan and air conditioner
CN215333524U (en) Impeller, fan and bathroom heater
JP3488126B2 (en) Air curtain
CN116241505A (en) Volute structure, air duct assembly and air conditioner
CN207795607U (en) Blower fan apparatus and smoke machine
JPH09137970A (en) Outdoor unit for air conditioner
JP2007187102A (en) Centrifugal blower
CN201843798U (en) Wind tunnel type fan
CN215370343U (en) Impeller structure of centrifugal fan
JPH03138493A (en) Motor-driven blower
CN217502041U (en) Fan and cleaning equipment
CN217462651U (en) Impeller, impeller blade and centrifugal fan
CN219654913U (en) Circular centrifugal axial flow fan
CN219976565U (en) Heating equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20220722