CN108087332B - Fan impeller assembly and range hood - Google Patents
Fan impeller assembly and range hood Download PDFInfo
- Publication number
- CN108087332B CN108087332B CN201810061310.2A CN201810061310A CN108087332B CN 108087332 B CN108087332 B CN 108087332B CN 201810061310 A CN201810061310 A CN 201810061310A CN 108087332 B CN108087332 B CN 108087332B
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- Prior art keywords
- mounting structure
- impeller body
- rotation
- impeller
- fan
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 abstract description 14
- 239000000779 smoke Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
- F04D29/386—Skewed blades
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- 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 provides a fan impeller assembly and a range hood, and relates to the technical field of kitchen appliances. A fan impeller assembly comprises an impeller body and a pre-rotation blade frame, wherein a pre-rotation She Jiashe is arranged in the impeller body; the pre-rotation vane frame comprises an outer mounting structure, an inner mounting structure and a plurality of spokes, the outer mounting structure is used for being connected with the impeller body, the inner mounting structure is used for being connected with the fan driving mechanism, and the spokes are respectively connected between the outer mounting structure and the inner mounting structure; the spokes adopt a fan blade structure in a space curved surface shape; when the pre-rotation vane frame rotates, the pre-rotation vane frame is matched with the impeller body for sucking and exhausting the flue gas. A range hood includes a fan wheel assembly. The invention aims to provide a fan impeller assembly and a range hood, which are used for solving the problem that in the prior art, a dead zone for gas flow is easy to occur between the center of an impeller and blades, so that the working efficiency of the impeller and the range hood is affected.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a fan impeller assembly and a range hood.
Background
When a fan system of the household range hood is used, the performance of the core component of the range hood directly influences the smoking effect of the range hood; at present, a working part of a fan system is an impeller, a blade frame adopted by the fan system is in a flat plate type or deep drawing type mode, the blade frame is used for fixedly mounting the impeller, and the blade frame is connected with an output shaft of a motor.
However, because the blade frame adopting the mode is connected between the impeller and the motor, in the process that gas enters the impeller and flows, a dead zone for gas flow easily appears between the center of the impeller and the blades, so that the process that the gas flow passes through the impeller is influenced, namely the smoking efficiency of the impeller is influenced, and the quality of the whole range hood is further influenced.
Based on the problems, it is important to provide an impeller with high smoking efficiency and a range hood.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a fan impeller assembly and a range hood, which are used for solving the problem that in the prior art, a dead zone for gas flow is easy to occur between the center of an impeller and blades, so that the working efficiency of the impeller and the range hood is affected.
In order to solve the technical problems, the invention adopts the following technical means:
the invention provides a fan impeller assembly, which comprises an impeller body and a pre-rotation vane frame;
the pre-rotation vane frame is positioned at the inner side of the impeller body and is fixedly connected with the impeller body;
The pre-rotation vane frame comprises an outer mounting structure, an inner mounting structure and a plurality of spokes, wherein the outer mounting structure is used for being connected with the impeller body, the inner mounting structure is used for being connected with a fan driving mechanism, and the spokes are respectively connected between the outer mounting structure and the inner mounting structure;
The spokes adopt fan blade structures in space curved surfaces;
when the pre-rotation vane frame rotates, the pre-rotation vane frame is matched with the impeller body for sucking and exhausting the flue gas.
As a further technical scheme, the two sides of the spoke width direction are provided with a first curve and a second curve;
The asymptotes of the first curve and the second curve are perpendicular to the axis of the pre-rotation vane frame, and the distance between the asymptote of the first curve and the asymptote of the second curve is 10-25mm.
As a further technical scheme, the width of the spoke is 20-40mm, the thickness of the spoke is 1-4mm, and the distance between the asymptote of the first curve and the asymptote of the second curve is 15-20mm.
As a further technical solution, the width of the spoke is 30mm, the thickness of the spoke is 2-3mm, and the distance between the asymptote of the first curve and the asymptote of the second curve is 18mm.
As a further technical scheme, the impeller body comprises a front ring, a rear ring and a plurality of blades, and two ends of each blade are respectively fixed at the outer edges of the front ring and the rear ring;
The pre-rotation She Jiashe is disposed between the front and rear turns;
The outer mounting structure is arranged between the front ring and the rear ring and is connected with the impeller body.
As a further technical scheme, the outer mounting structure is fixedly connected with the rear ring.
As a further technical scheme, the outer edge of the outer mounting structure is provided with a clamping groove for clamping the blade.
As a further technical scheme, the rotation direction of the pre-rotation vane frame is consistent with the rotation direction of the impeller body.
The invention provides a range hood which comprises the fan impeller assembly.
As a further technical scheme, the range hood is a side-draft range hood;
the front ring of the impeller body encloses a main air inlet;
the pre-rotation She Jiashe is arranged at a position close to the rear ring of the impeller body and is opposite to the main air inlet.
Compared with the prior art, the fan impeller assembly and the range hood provided by the invention have the technical advantages that:
The invention provides a fan impeller assembly, which comprises an impeller body and a pre-rotation vane frame; the pre-rotation vane frame is arranged on the inner side of the impeller body and is fixedly connected with the impeller body, so that the vane frame can drive the impeller body to rotate; the pre-rotation vane frame comprises an outer mounting structure, an inner mounting structure and a plurality of spokes, wherein the outer mounting structure is in a disc shape and is fixedly connected with the impeller body, the inner mounting structure is in transmission connection with the fan driving mechanism, and the spokes are uniformly connected between the outer mounting structure and the inner mounting structure; further, the spoke adopts the flabellum structure, and this flabellum structure is space curved surface shape, so, when fan actuating mechanism drives the rotation of pre-rotation vane frame, drives the impeller body by pre-rotation vane frame in step and rotates, from this, when pre-rotation vane frame and impeller body rotate, the homoenergetic of mutually supporting is played the effect of discharging fume to improve the efficiency of discharging fume.
The working principle of the fan impeller assembly provided by the invention is as follows:
When the fan is started, the fan driving mechanism drives the spokes to rotate through the inner mounting structure, and the spokes drive the outer mounting structure to rotate, so that the fan driving mechanism can drive the whole pre-rotation vane frame to rotate; the spokes adopt a space curved surface-shaped fan blade structure, and when the pre-rotation vane frame rotates, the pre-rotation vane frame can absorb smoke so as to absorb the smoke into the inner cavity of the impeller body; simultaneously, fixed connection between pre-rotation vane frame and the impeller body, from this, pre-rotation vane frame can drive the impeller body in step and rotate, and when the impeller body rotated, through the special structure of the blade of impeller body outer fringe department, can be with the inboard gas of impeller body from the gap between the adjacent blade discharge, from this, produces certain vacuum in the impeller body inboard, makes external flue gas can inhale and discharge from the front end of impeller body. And, the effect that the pre-rotation vane frame produced to the flue gas when rotatory with the impeller body overlaps to be favorable to absorbing and discharging the flue gas more.
In addition, based on the structural design of the spokes, a pre-rotation can be generated inside the impeller body during rotation, and the air flow inside the impeller body can be acted, so that the air flow inside the impeller body is driven to flow.
According to the fan impeller assembly provided by the invention, through the mutual matching of the pre-rotation vane frame and the impeller body, the wind pressure of a fan system is obviously improved, so that the efficiency of absorbing smoke is greatly improved; in addition, through setting up the gas flow that the pre-rotation leaf frame can also make the impeller body inboard, and then effectively alleviateed the problem that "dead zone" appears between impeller body inboard and the blade, improved the quality of whole range hood.
The range hood provided by the invention comprises the fan impeller assembly, so that the technical advantages and effects achieved by the range hood comprise those achieved by the fan impeller assembly, and the technical advantages and effects are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first schematic view of a fan wheel assembly according to an embodiment of the present invention;
FIG. 2 is a second schematic view of a fan wheel assembly according to an embodiment of the present invention;
FIG. 3 is a first structural schematic illustration of a pre-rotation vane carrier in the fan wheel assembly shown in FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a second structural schematic view of the pre-rotation vane carrier in the fan wheel assembly shown in FIG. 1;
FIG. 6 is a third structural schematic view of the pre-rotation vane carrier in the fan wheel assembly shown in FIG. 1.
Icon: 100-impeller body; 110-front circle; 120-back circle; 130-leaf; 200-pre-rotation vane rack; 210-an outer mounting structure; 211-clamping grooves; 220-an inner mounting structure; 230-spokes; 231-first curve; 232-second curve.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
The specific structure is shown in fig. 1-6.
The fan impeller assembly provided by the embodiment comprises an impeller body 100 and a pre-rotation vane frame 200; the pre-rotation vane frame 200 is arranged at the inner side of the impeller body 100, and the pre-rotation vane frame 200 is fixedly connected with the impeller body 100, so that the vane frame can drive the impeller body 100 to rotate; the pre-rotation vane frame 200 comprises an outer mounting structure 210, an inner mounting structure 220 and a plurality of spokes 230, wherein the outer mounting structure 210 is designed into a disc shape and is used for being fixedly connected with the impeller body 100, the inner mounting structure 220 is used for being in transmission connection with a fan driving mechanism, and the spokes 230 are uniformly connected between the outer mounting structure 210 and the inner mounting structure 220; further, the spoke 230 adopts a fan blade structure, and the fan blade structure is in a space curved surface shape, so that when the fan driving mechanism drives the pre-rotation blade frame 200 to rotate, the pre-rotation blade frame 200 synchronously drives the impeller body 100 to rotate, and therefore, when the pre-rotation blade frame 200 and the impeller body 100 rotate, the pre-rotation blade frame 200 and the impeller body 100 are matched with each other to play a role in exhausting smoke, so that the smoke exhausting efficiency is improved.
The fan impeller assembly provided in this embodiment has the following working principle:
When the fan is started, the fan driving mechanism drives the spokes 230 to rotate through the inner mounting structure 220, and the spokes 230 drive the outer mounting structure 210 to rotate, so that the fan driving mechanism can drive the whole pre-rotation vane frame 200 to rotate; the spokes 230 adopt a space curved surface fan blade structure, and when the pre-rotation vane frame 200 rotates, the pre-rotation vane frame can absorb smoke so as to absorb the smoke into the inner cavity of the impeller body 100; meanwhile, the pre-rotation vane frame 200 is fixedly connected with the impeller body 100, so that the pre-rotation vane frame 200 can synchronously drive the impeller body 100 to rotate, and when the impeller body 100 rotates, gas inside the impeller body 100 can be discharged from gaps between adjacent blades 130 through the special structure of the blades 130 at the outer edge of the impeller body 100, and a certain vacuum degree is generated inside the impeller body 100, so that external smoke can be sucked and discharged from the front end of the impeller body 100. In addition, the pre-rotation vane frame 200 is overlapped with the effect on the smoke generated when the impeller body 100 rotates, thereby being more beneficial to absorbing and exhausting the smoke.
In addition, due to the structural design of the spokes 230, a pre-rotation can be generated inside the impeller body 100 during rotation, and the air flow inside the impeller body 100 can be acted on, so that the air flow inside the impeller body 100 is driven.
According to the fan impeller assembly provided by the embodiment, through the mutual matching of the pre-rotation vane frame 200 and the impeller body 100, the wind pressure of a fan system is obviously improved, and the efficiency of absorbing smoke is greatly improved; in addition, through the arrangement of the pre-rotation vane frame 200, the gas inside the impeller body 100 can flow, so that the problem of dead zone between the inner side of the impeller body 100 and the vanes 130 is effectively relieved, and the quality of the whole range hood is improved.
In an alternative solution of this embodiment, two sides of the spoke 230 in the width direction are set to a first curve 231 and a second curve 232; the asymptotes of the first curve 231 and the second curve 232 are perpendicular to the axis of the pre-rotation vane frame 200, and the distance L between the asymptote of the first curve 231 and the asymptote of the second curve 232 is 10-25mm.
In an alternative embodiment of the present invention, the width D of the spoke 230 is 20-40mm, the thickness t of the spoke 230 is 1-4mm, and the distance L between the asymptote of the first curve 231 and the asymptote of the second curve 232 is 15-20mm.
In an alternative solution of this embodiment, the projection of the spoke 230 along the axial direction of the pre-rotation vane frame 200 is rectangular; the width D of the spoke 230 is 30mm, the thickness t of the spoke 230 is 2-3mm, and the distance between the asymptote of the first curve 231 and the asymptote of the second curve 232 is 18mm.
It should be noted that, in order to alleviate the problem that the dead zone of the gas flow occurs between the center of the impeller body 100 and the blades 130 when the fan impeller rotates, in this embodiment, the structure of the pre-rotation vane frame 200 is redesigned, so that the pre-rotation vane frame 200 not only has the function of supporting and fixedly installing the impeller body 100, but also can be beneficial to the impeller body 100 to absorb the flue gas when rotating, and also has a certain fluidity when the flue gas enters the inner cavity of the impeller body 100.
The pre-rotation vane frame 200 in this embodiment includes an outer mounting structure 210, an inner mounting structure 220 and a plurality of spokes 230, and the spokes 230 are designed to have a space curved surface shape, specifically, the spokes 230 can be actually considered as a rectangular plate, one end of the rectangular plate is screwed and bent, so that the rectangular plate is finally formed into a space curved surface structure with a spiral shape and an arc shape; before screwing, the width direction of one end of the rectangular plate fixedly connected with the inner mounting structure 220 is perpendicular to the axial direction of the pre-rotation vane frame 200, after screwing, the width direction is not perpendicular to the axial direction, but is inclined to each other, the end face is fixedly connected with the inner mounting structure 220, and due to the inclined arrangement, the connection area between the spoke 230 and the inner mounting structure 220 is increased intangibly, and the connection strength is improved. The other end of the rectangular plate is fixedly connected with the inner edge of the outer mounting structure 210, so that a plurality of spokes 230 with space curved surfaces are arranged between the inner mounting structure 220 and the outer mounting structure 210, thereby being beneficial to improving the absorption and emission of smoke and relieving the problem of dead zone in the inner cavity of the impeller body 100.
In this embodiment, the width D of the spoke 230 is set to 20-40mm, including 20mm, 25mm, 30mm, 35mm, 40mm, preferably 30mm, according to practical requirements; the spoke 230 is provided with a thickness of 1-4mm, including 1mm, 2mm, 3mm, 4mm, further preferably 2-3mm, including 2mm, 2.5mm, 3mm, etc. While the diameter Φ of the pre-rotation rack 200 is sized according to the impellers in the fan deck of the household range hood.
In this embodiment, the curves on two sides of the spoke width direction are named as a first curve 231 and a second curve 232 respectively, when the axis of the pre-rotation vane frame 200 is placed vertically, the pre-rotation vane frame 200 is projected to a vertical plane, and the pre-rotation vane frame 200 is symmetrical with respect to the vertical plane, at this time, the asymptote of the first curve 231 is horizontal, the asymptote of the second curve 232 is also horizontal, and the distance L between the asymptotes of the two curves is 10-25mm, that is, the drop of the two curves is 10-25mm, further, the distance L is 15-20mm, including 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, and in this embodiment, the distance L is preferably 18mm through experimental comparison study. Since the dynamic balance of the fan impeller assembly has an obvious influence on the performance thereof, by controlling the above parameters of the pre-rotation vane frame 200, the whole dynamic balance of the fan impeller assembly is ensured not to be influenced.
In addition, since the eccentricity affects the opening size of the curves, the eccentricity of the first and second curves 231 and 232 is set to 1 to satisfy the space structure and the gas flow requirement, in consideration of the opening size of the pre-rotation vane frame 200, i.e., the size of the outer mounting structure 210, the size of the whole fan wheel assembly, and the gas flow space.
In an alternative solution of this embodiment, the impeller body 100 includes a front ring 110, a rear ring 120 and a plurality of blades 130, the blades 130 adopt an arc-shaped blade structure, and two ends of each blade 130 are respectively fixed at the outer edges of the front ring 110 and the rear ring 120.
Further, the pre-rotation vane frame 200 is disposed between the front ring 110 and the rear ring 120 and is located at the central portion of the impeller body 100; the outer mounting structure 210 is disposed between the front ring 110 and the rear ring 120 and is connected to the impeller body 100.
In an alternative embodiment of the present invention, the outer mounting structure 210 is fixedly connected to the rear ring 120.
In an alternative solution of this embodiment, the rotation direction of the pre-rotation vane frame 200 is identical to the rotation direction of the impeller body 100.
In an alternative solution of this embodiment, a clamping groove 211 for clamping the blade 130 is provided at the outer edge of the outer mounting structure 210.
It should be noted that, the fan impeller assembly in this embodiment includes an impeller body 100 and a pre-rotation vane frame 200, and the two are fixedly connected, and the fan driving mechanism drives the impeller body 100 to rotate through the pre-rotation vane frame 200, and the specific installation mode is as follows: the outer mounting structure 210 on the pre-rotation vane frame 200 is fixedly mounted between the front ring 110 and the rear ring 120 on the impeller body 100, thereby achieving the purpose of mounting the pre-rotation vane frame 200 in the inner cavity of the impeller body 100, thereby more remarkably improving the full pressure of the fan system.
Further, according to the different mounting positions of the pre-rotation vane frame 200, the performance thereof is different, so that the effect on the air flow is different, in this embodiment, the rotation direction of the pre-rotation vane frame 200 is consistent with the rotation direction of the impeller, that is, the vanes 130 are correspondingly arranged with the spokes 230, so that the air flow can be mutually overlapped. However, when the outer mounting structure 210 on the pre-rotation vane frame 200 is fixedly connected with the front ring 110, at this time, the pre-rotation vane frame 200 and the impeller body 100 rotate to play a role in adsorbing smoke, at this time, the rotation of the pre-rotation vane frame 200 has little influence on the gas flowing process in the cavity of the impeller body 100, so that the effect of eliminating the dead zone of the gas flow in the cavity of the impeller body 100 is relatively good; when the outer mounting structure 210 on the pre-rotation vane frame 200 is fixedly connected to the middle position of the front ring 110 and the rear ring 120, at this time, although the pre-rotation vane frame 200 can pre-rotate the air flow of the front section in the impeller body 100, the air flow of the rear section of the impeller body 100 is blocked by the vortex formed by the pre-rotation vane frame 200, so that the air flow of the rear section is blocked, and thus, the actions of the front section air flow and the rear section air flow are mutually neutralized, and finally, the axial flow effect of the pre-rotation vane frame 200 is not remarkably improved; therefore, when the outer mounting structure 210 is fixedly connected with the rear ring 120, the pre-rotation vane frame 200 can influence the air flow entering the inner cavity of the impeller body 100, so that the loss of the air flow entering the inner cavity of the impeller body 100 can be reduced to the greatest extent, the axial flow effect of the pre-rotation vane frame 200 is improved obviously, the full pressure is improved obviously, and the effect of eliminating the dead zone of the air flow in the impeller body 100 is obvious.
It should be noted that, when the outer mounting structure 210 is disposed between the front ring 110 and the rear ring 120 and is not fixedly connected with the front ring 110 or the rear ring 120, in order to fixedly connect the pre-rotation vane frame 200 with the impeller body 100, a plurality of clamping grooves 211 are uniformly formed at the outer edge of the outer mounting structure 210, and when the fan impeller assembly is assembled, the blades 130 are clamped in the clamping grooves 211, so that the fixed connection between the outer mounting structure 210 and the blades 130 can be realized, and the fixed connection between the pre-rotation vane frame 200 and the impeller body 100 can be further realized.
The range hood provided by the embodiment comprises the fan impeller assembly; in this embodiment, the range hood is specifically a side-draft range hood, and the front ring of the impeller body encloses into the main air intake, and the pre-rotation vane frame is disposed at a position close to the rear ring on the impeller body, and this pre-rotation vane frame is also disposed opposite to the main air intake, and its reason is: the arrangement of the pre-rotation vane frame increases the air flow in front of the pre-rotation vane frame in the inner cavity of the impeller body, and simultaneously reduces the air flow behind the pre-rotation vane frame, thereby achieving the purpose of increasing the air quantity; if the front side and the rear side of the pre-rotation vane frame are uniformly provided with air, the whole air quantity is not greatly different, but the side-suction type range hood has certain advantages aiming at the condition of main air inlet at one side. In addition, a part of the top-suction type range hood also meets the requirement.
The range hood comprises the fan impeller assembly, so that the technical advantages and effects achieved by the range hood comprise those achieved by the fan impeller assembly, and the technical advantages and effects are not repeated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A fan impeller assembly, comprising: the device comprises an impeller body and a pre-rotation blade frame, wherein the pre-rotation blade She Jiashe is arranged in the impeller body;
The pre-rotation vane frame comprises an outer mounting structure, an inner mounting structure and a plurality of spokes, wherein the outer mounting structure is used for being connected with the impeller body, the inner mounting structure is used for being connected with a fan driving mechanism, and the spokes are respectively connected between the outer mounting structure and the inner mounting structure;
The spokes adopt fan blade structures in space curved surfaces;
when the pre-rotation vane frame rotates, the pre-rotation vane frame is matched with the impeller body for sucking and exhausting flue gas;
The impeller body comprises a front ring, a rear ring and a plurality of blades, and two ends of each blade are respectively fixed at the outer edges of the front ring and the rear ring;
The pre-rotation She Jiashe is disposed between the front and rear turns;
The outer mounting structure is arranged between the front ring and the rear ring and is connected with the impeller body;
a clamping groove for clamping the blade is formed in the outer edge of the outer mounting structure;
The two sides of the spoke in the width direction are provided with a first curve and a second curve; the asymptotes of the first curve and the second curve are perpendicular to the axis of the pre-rotation vane frame.
2. The fan wheel assembly of claim 1, wherein a distance between an asymptote of the first curve and an asymptote of the second curve is 10-25mm.
3. The fan wheel assembly of claim 2, wherein the spokes have a width of 20-40mm, a thickness of 1-4mm, and a distance between an asymptote of the first curve and an asymptote of the second curve is 15-20mm.
4. A fan wheel assembly as claimed in claim 3, wherein the spokes have a width of 30mm, the spokes have a thickness of 2-3mm, and the distance between the asymptote of the first curve and the asymptote of the second curve is 18mm.
5. The fan impeller assembly of claim 1 wherein the pre-rotation vane mount is configured to have a rotation direction that is consistent with a rotation direction of the impeller body.
6. A range hood comprising the fan wheel assembly of any one of claims 1-5.
7. The range hood of claim 6, wherein the range hood is a side-draft range hood;
the front ring of the impeller body encloses a main air inlet;
the pre-rotation She Jiashe is arranged at a position close to the rear ring of the impeller body and is opposite to the main air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061310.2A CN108087332B (en) | 2018-01-22 | 2018-01-22 | Fan impeller assembly and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061310.2A CN108087332B (en) | 2018-01-22 | 2018-01-22 | Fan impeller assembly and range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108087332A CN108087332A (en) | 2018-05-29 |
| CN108087332B true CN108087332B (en) | 2024-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810061310.2A Active CN108087332B (en) | 2018-01-22 | 2018-01-22 | Fan impeller assembly and range hood |
Country Status (1)
| Country | Link |
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| CN (1) | CN108087332B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108534202A (en) * | 2018-06-14 | 2018-09-14 | 杭州老板电器股份有限公司 | Impeller, wind turbine and kitchen ventilator |
| CN108916110B (en) * | 2018-08-30 | 2024-07-23 | 杭州老板电器股份有限公司 | Impeller, fan and range hood |
| PE20212381A1 (en) | 2019-04-04 | 2021-12-23 | Oy Halton Group Ltd | SLIDING RANGE HOOD |
| CN113019640B (en) * | 2021-03-29 | 2022-07-22 | 南京工程学院 | Efficient superhard ultramicro powder vertical hydraulic turbulent mill |
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|---|---|
| CN108087332A (en) | 2018-05-29 |
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