CN111946669A - Fan structure and lampblack absorber - Google Patents
Fan structure and lampblack absorber Download PDFInfo
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- CN111946669A CN111946669A CN202010868227.3A CN202010868227A CN111946669A CN 111946669 A CN111946669 A CN 111946669A CN 202010868227 A CN202010868227 A CN 202010868227A CN 111946669 A CN111946669 A CN 111946669A
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- flow guide
- volute
- plate
- fan structure
- guide part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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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
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- 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
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- 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 structure and a range hood, and relates to the technical field of kitchen utensils. The fan structure comprises a flow guide assembly and a volute; the flow guide assembly comprises a first flow guide part and a second flow guide part, the first flow guide part and the second flow guide part are arranged on two sides of the lowest point of the bottom of the volute at intervals in the circumferential direction of the volute, and the intervals are gradually increased from one side close to the volute to one side far away from the volute in the height direction of the volute; the first flow guide part and the second flow guide part are respectively provided with two flow guide side walls which are arranged at intervals, and the distance between the top edges of any group of two flow guide side walls which are arranged at intervals is larger than the distance between the bottom edges. The invention solves the technical problems that in the prior art, the appearance of the shell of the fan structure is influenced because the guide plate in the fan structure is fixed on the shell of the fan structure through the fastening piece, and the volute is only fixed inside the shell of the fan structure through the fastening piece between the top of the volute and the top of the shell of the fan structure, so that the mounting stability of the volute is poor.
Description
Technical Field
The invention relates to the technical field of kitchen utensils, in particular to a fan structure and a range hood.
Background
Along with the continuous upgrading of technique, to ambient noise more and more high, need constantly carry out the technical upgrading to the lampblack absorber, increase the amount of wind of lampblack absorber on the one hand, reduce the noise that the fan structure department of lampblack absorber produced simultaneously on the basis of increasing the amount of wind.
The noise generation of the fan structure mainly comes from the volute in the fan structure, and when oil smoke enters the shell of the fan structure from the smoke collecting hood below the fan structure, the oil smoke collides with the bottom of the volute arranged in the shell in the vertical direction firstly, and then flows to the air inlets at two sides of the volute. When oil smoke flows to the air inlet from the bottom of the volute, the collision phenomenon of air flow and air flow is serious, and then larger noise can be generated.
The existing method for reducing the noise at the volute is characterized in that a strip-shaped guide plate with a downward convex curved surface is arranged at a position below the volute in the shell of the fan structure, and the curved surface of the guide plate can divide the oil smoke, so that the collision phenomenon of the air flow and the air flow in the oil smoke flowing process can be reduced, and the noise at the volute is reduced.
However, the above-mentioned flow guide plate is usually fixed on the housing of the fan structure by fasteners such as screws, which may affect the aesthetic appearance of the housing of the fan structure. In addition, the volute in the existing fan structure is fixed inside the shell of the fan structure only through fasteners such as screws between the top of the volute and the top of the shell of the fan structure, and therefore the mounting stability of the volute is poor.
Disclosure of Invention
The invention aims to provide a fan structure and a range hood, and aims to solve the technical problem that in the prior art, in order to reduce the noise at a volute in the fan structure of the range hood, a strip-shaped guide plate with a downward convex curved surface is arranged at the bottom of the volute, but the guide plate is fixed on a shell of the fan structure through fasteners such as screws and the like, so that the attractiveness of the shell of the fan structure is influenced.
The fan structure provided by the invention comprises a volute, a flow guide assembly and a case;
the volute and the flow guide assembly are both arranged inside the case, and the top of the volute is connected with the inner side of the top of the case;
one side of the flow guide assembly is connected with the bottom of the volute, and the other side of the flow guide assembly is used for being connected with the top of a smoke collecting hood communicated below the case;
the flow guide assembly is used for dividing the airflow flowing from the smoke collecting cover to the lower part of the volute and guiding the airflow to the air inlets on two sides of the volute.
Further, the flow guide assembly comprises a first flow guide part and a second flow guide part, and the first flow guide part and the second flow guide part are arranged on two sides of the lowest point of the bottom of the volute at intervals in the circumferential direction of the volute;
the first flow guide part and the second flow guide part are respectively provided with two flow guide side walls which are arranged at intervals, each flow guide side wall comprises a top edge and a bottom edge, and the distance between the top edges of any two flow guide side walls which are arranged at intervals is larger than the distance between the bottom edges.
Furthermore, the end surface of the first flow guide piece, which is close to the second flow guide piece, is an inclined surface, and the inclined surface inclines towards the direction far away from the second flow guide piece from the side close to the bottom of the volute to the side far away from the bottom of the volute;
the end face, close to the first flow guide part, of the second flow guide part is an inclined face, and the inclined face inclines towards the direction far away from the first flow guide part from the side close to the bottom of the volute to the side far away from the bottom of the volute.
Furthermore, the first flow guide piece is groove-shaped and comprises two first side plates, the two first side plates are respectively positioned at the two flow guide side walls of the first flow guide piece, the top edges of the two first side plates are connected to the bottom of the volute at intervals, and the bottom edges of the two first side plates are connected with each other;
the second flow guide part is groove-shaped and comprises two second side plates, the two second side plates are respectively positioned at the two flow guide side walls of the second flow guide part, the top edges of the two second side plates are connected to the bottom of the volute at intervals, and the bottom edges of the two second side plates are connected with each other.
Further, the plate surfaces of the first side plate and the second side plate are both cambered surfaces;
the plate surface of any one of the two first side plates protrudes towards a direction far away from the other first side plate; in the two second side plates, the plate surface of any one of the second side plates protrudes in a direction away from the other second side plate.
Further, the first flow guide piece also comprises a first bottom plate and two first end plates;
the first bottom plate is connected between the two first side plates, the two first end plates are respectively positioned at two ends of the first diversion piece, one of the first end plates is connected with the first side plate and the first bottom plate, and the other first end plate is connected with the first side plate and the first bottom plate;
and/or the second flow guide element further comprises a second bottom plate and two second end plates;
the second bottom plate is connected between the two second side plates, the two second end plates are respectively positioned at the two end parts of the second flow guide piece, one of the second end plates is connected with the second side plate and the second bottom plate, and the other of the second end plates is connected with the second side plate and the second bottom plate.
Furthermore, the flow guide assembly also comprises a curved surface connecting plate;
the curved surface connecting plate is connected between the first flow guide piece and the second flow guide piece in a smooth transition mode, and the curved surface connecting plate is attached to the bottom of the volute.
Furthermore, the bottom of the volute is provided with a connecting rib which extends along the circumferential direction of the volute;
the curved surface connecting plate is provided with a strip-shaped hole corresponding to the connecting rib, and the connecting rib is embedded in the strip-shaped hole.
Furthermore, the curved surface connecting plate is provided with an oil leakage hole.
The range hood provided by the invention comprises the fan structure in any one of the technical schemes.
The fan structure and the range hood provided by the invention can produce the following beneficial effects:
the fan structure provided by the invention comprises a volute, a flow guide assembly and a case; the volute and the flow guide assembly are both arranged inside the case, and the top of the volute is connected with the inner side of the top of the case; one side of the flow guide assembly is connected with the bottom of the volute, and the other side of the flow guide assembly is used for being connected with the top of the smoke collecting hood communicated below the case; the flow guide assembly is used for dividing the airflow flowing from the fume collecting hood to the lower part of the volute and guiding the airflow to the air inlets on two sides of the volute. In the fan structure provided by the invention, one side of the flow guide assembly is connected with the bottom of the volute, and the other side of the flow guide assembly is used for being connected with the top of the smoke collecting hood communicated below the machine case, so that the flow guide assembly can be fixed in the machine case by utilizing the connection relationship between the flow guide assembly and the volute and the connection relationship between the flow guide assembly and the smoke collecting hood. Therefore, the position of the flow guide assembly is fixed, and the flow guide assembly does not need to form a connection relation with the case, so that the influence on the appearance of the case caused by the installation of the flow guide assembly in the case can be avoided. In addition, the flow guide assembly in the fan structure provided by the invention can divide the airflow flowing from the smoke collecting hood to the lower part of the volute and guide the airflow to the air inlets at two sides of the volute, and at the moment, the airflow does not vertically reach the bottom of the volute, but flows to a gap between the side wall of the volute, which is provided with the air inlet, and the inner side wall of the case in the height direction of the case, so that the collision phenomenon between the airflow and the airflow can be reduced, the airflow is guided smoothly, and the noise is reduced. In addition, in the fan structure provided by the invention, the top of the volute is connected with the inner side of the top of the case, and the flow guide assembly is connected between the bottom of the volute and the top of the smoke collecting hood, so that the volute can be supported by the flow guide assembly, the volute can be stably fixed in the case under the matching of the flow guide assembly and the case, and the installation stability of the volute is improved.
Compared with the prior art, the flow guide assembly in the fan structure provided by the invention can be fixed in the case by utilizing the connection relationship between the flow guide assembly and the volute and the connection relationship between the flow guide assembly and the smoke collecting hood, and the connection relationship between the flow guide assembly and the case is not required to be formed, so that the attractiveness of the case can be improved. And the volute can also be supported by the flow guide assembly, and can be stably fixed in the case under the matching of the flow guide assembly and the case, so that the installation stability of the volute is improved.
The range hood provided by the invention comprises the fan structure, so that the range hood provided by the invention has the same beneficial effect as the fan structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a fan structure and a smoke collecting hood of a range hood according to a first embodiment of the present invention;
FIG. 2 is a bottom view of the fan structure and smoke collection cage of FIG. 1;
FIG. 3 is a cross-sectional view of the fan structure and smoke collection cage of FIG. 1;
FIG. 4 is a side perspective view of the fan structure and smoke collection cage of FIG. 1;
FIG. 5 is a schematic view of a flow directing assembly in the fan configuration of FIG. 1;
FIG. 6 is a front view of the deflector assembly of FIG. 5;
FIG. 7 is a bottom view of the deflector assembly of FIG. 5;
FIG. 8 is a side view of the deflector assembly of FIG. 5;
fig. 9 is another schematic structural diagram of a flow guide assembly according to an embodiment of the present invention;
fig. 10 is another schematic structural view of the fan structure and smoke collection cover of fig. 1.
Icon: 1-a volute; 10-connecting ribs; 2-a flow guide assembly; 20-a first flow guide; 200-a first side panel; 201-a first backplane; 202-a first end plate; 21-a second flow guide; 210-a second side panel; 211-a second base plate; 212-a second end plate; 3-a case; 4-smoke collecting hood; 5-curved surface connecting plate; 50-strip-shaped holes; 51-oil leakage hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 4, the fan structure provided in this embodiment includes a volute 1, a flow guide assembly 2, and a chassis 3. The volute 1 and the flow guide assembly 2 are both arranged inside the case 3, and the top of the volute 1 is connected with the inner side of the top of the case 3; one side of the flow guide assembly 2 is connected with the bottom of the volute 1, and the other side of the flow guide assembly 2 is used for being connected with the top of a smoke collecting hood 4 communicated below the case 3; the flow guide assembly 2 is used for dividing the airflow flowing from the fume collecting hood 4 to the lower part of the volute 1 and guiding the airflow to the air inlets on two sides of the volute 1.
In the fan structure provided by this embodiment, one side of the flow guiding assembly 2 is connected to the bottom of the volute 1, and the other side of the flow guiding assembly 2 is used for being connected to the top of the smoke collecting hood 4 communicated below the case 3, so that the flow guiding assembly 2 can be fixed inside the case 3 by using the connection relationship between the flow guiding assembly and the volute 1 and the connection relationship between the flow guiding assembly and the smoke collecting hood 4. Therefore, the position of the diversion assembly 2 is fixed, and the diversion assembly does not need to form a connection relation with the case 3, thereby avoiding the influence on the appearance of the case 3 caused by the installation of the diversion assembly 2 in the case 3.
Wherein, the bottom of machine case 3 is provided with the opening, and machine case 3 is installed on the top of the collection petticoat pipe 4 of lampblack absorber, and the opening of the bottom of machine case 3 and the opening intercommunication at the top of collection petticoat pipe 4. The flow guide assembly 2 is positioned above the port at the top of the fume collecting hood 4 and is connected with the top of the fume collecting hood 4.
Moreover, the flow guiding assembly 2 in the fan structure provided by this embodiment can divide and guide the airflow flowing from the smoke collecting hood 4 to the lower part of the volute 1 to the air inlets on both sides of the volute 1, at this time, the airflow does not go perpendicular to the bottom of the volute 1, but flows into the gap between the side wall of the volute 1 provided with the air inlets and the inner side wall of the case 3 in the height direction of the case 3, so that the collision phenomenon between the airflow and the airflow can be reduced, the airflow is guided smoothly, and the noise is reduced.
In addition, because in the fan structure that this embodiment provided, the inside at 1 top of spiral case and quick-witted case 3 top is connected, and guiding subassembly 2 is connected between the bottom of spiral case 1 and the top of collection petticoat pipe 4, therefore spiral case 1 can also obtain guiding subassembly 2's support, and spiral case 1 can be stabilized under guiding subassembly 2 and quick-witted case 3's cooperation and be fixed inside quick-witted case 3, and its installation stability has obtained the promotion.
Compared with the prior art, the flow guide assembly 2 in the fan structure provided by the embodiment can be fixed inside the case 3 by utilizing the connection relationship between the flow guide assembly and the volute 1 and the connection relationship between the flow guide assembly and the smoke collecting hood 4, and the connection relationship does not need to be formed with the case 3, so that the attractiveness of the case 3 can be improved. In addition, the volute 1 can be supported by the flow guide assembly 2, and can be stably fixed inside the case 3 under the matching of the flow guide assembly 2 and the case 3, so that the installation stability of the volute 1 is improved.
It can be seen that the fan structure that this embodiment provided has alleviated the noise that exists for the spiral case department in the fan structure that reduces the lampblack absorber among the prior art, the guide plate that has downward convex curved surface of strip is installed to the spiral case bottom, but the guide plate passes through fasteners such as screw to be fixed on the shell of fan structure, and then can influence the pleasing to the eye of the shell of fan structure, and, the spiral case among the current fan structure, only fix inside the shell of fan structure through fasteners such as screws between its top and the top of fan structure shell, lead to the relatively poor technical problem of installation stability of spiral case.
In practical application, the connection between the top of the volute 1 and the case 3, the connection between the bottom of the volute 1 and the flow guide assembly 2, and the connection between the flow guide assembly 2 and the smoke collecting hood 4 can be realized in a welding manner, and can also be realized through fasteners such as screws or rivets. In order to facilitate the assembly and disassembly of the volute casing 1 and the flow guiding assembly 2, the connection is preferably realized by fasteners such as screws or rivets.
As shown in fig. 1, 2 and 5, the flow guide assembly 2 includes a first flow guide member 20 and a second flow guide member 21, and the first flow guide member 20 and the second flow guide member 21 are installed at both sides of the lowest point of the bottom of the scroll casing 1 at intervals in the circumferential direction of the scroll casing 1. As shown in fig. 5, 7 and 8, each of the first and second guide members 20 and 21 has two spaced apart guide sidewalls including top and bottom edges, and the distance between the top edges of any two spaced apart guide sidewalls is greater than the distance between the bottom edges.
The top edge of the flow guide side wall is one side close to the bottom of the volute 1, the top edge of the flow guide side wall can be attached to the bottom of the volute 1, and the bottom edge of the flow guide side wall is one side far away from the bottom of the volute 1.
Wherein, arrows in fig. 1, fig. 2, fig. 4, fig. 7 and fig. 8 represent the air flow flowing from the lower side of the volute 1 to the air inlets at two sides of the volute 1, and the flow direction at the bottom of the volute 1 and the flow guide assembly 2 can show that the first flow guide member 20 and the second flow guide member 21 can both split the air flow flowing from the lower side of the volute 1 to the air inlets at two sides of the volute 1 by using two flow guide side walls arranged at intervals of the first flow guide member and the second flow guide member, and can respectively guide the split air flow to the air inlets at two sides of the volute 1. Therefore, the first flow guiding element 20 and the second flow guiding element 21 can reduce the collision phenomenon between the air flow and the air flow in the oil smoke flowing process, and reduce the noise at the volute 1, and the flow guiding assembly 2 in the fan structure provided by the embodiment can still play a role in reducing the noise at the volute 1.
Wherein, two water conservancy diversion lateral walls that arbitrary group interval set up can the symmetry set up. And when the distance between the top edges of any two groups of flow guide side walls arranged at intervals is larger than the distance between the bottom edges, the flow guide side walls can be curved surfaces or inclined surfaces. When the flow guide side wall is a curved surface, each flow guide side wall in any group of two flow guide side walls arranged at intervals protrudes from the top edge to the bottom edge towards the direction far away from the other flow guide side wall. When the flow guide side wall is an inclined surface, each flow guide side wall in any group of two flow guide side walls arranged at intervals inclines from the top edge to the bottom edge towards the direction close to the other flow guide side wall.
In the present embodiment, the interval between the first flow guiding member 20 and the second flow guiding member 21 has a height and a length, the height is the same as the height direction of the volute casing 1, and the length direction is the same as the projection direction of the circumferential direction of the volute casing 1 on the horizontal plane. Further, in the height direction of the above-mentioned interval, the length of the interval between the first guide member 20 and the second guide member 21 gradually increases from the side close to the scroll casing 1 to the side far from the scroll casing 1.
In addition, as shown in fig. 2 and 3, since the first guide member 20 and the second guide member 21 are installed at both sides of the lowest point of the bottom of the scroll casing 1 at intervals, when the air flow flows from the bottom of the scroll casing 1 to the air inlets at both sides of the scroll casing 1, the air flow enters the intervals.
And because the interval gradually increases from the side close to the volute 1 to the side far from the volute 1 in the height direction of the volute 1, the end surface of the first flow guide part 20 close to the second flow guide part 21 and the end surface of the second flow guide part 21 close to the first flow guide part 20 both play a role in guiding the airflow entering the interval, so that the airflow is divided into two airflows in different directions along the annular direction of the volute 1 at the position, the two airflows respectively approach to the end part of the first flow guide part 20 far from the second flow guide part 21 and approach to the end part of the second flow guide part 21 far from the first flow guide part 20, and thus the airflows are greatly distributed at the first flow guide part 20 and the second flow guide part 21, the airflow flow is accelerated, and the air volume of the range hood can be further improved. In addition, when the airflow is divided into two airflows flowing along the annular direction of the volute 1 at the interval, the collision phenomenon between the airflow and the airflow can be reduced, the airflow is guided, and the noise is reduced.
Therefore, the fan structure provided by this embodiment utilizes the first flow guiding part 20 and the second flow guiding part 21 which are installed at the two sides of the lowest point of the bottom of the volute 1 at intervals in the flow guiding assembly 2, so that the noise at the position of the volute 1 can be reduced, and simultaneously, the airflow speed is increased at intervals which gradually increase from the side close to the volute 1 to the side far away from the volute 1 in the height direction of the volute 1, and further, the air volume of the range hood can be increased.
The first flow guide part 20 and the second flow guide part 21 in the flow guide assembly 2 installed at the bottom of the volute 1 at intervals are approximately hump-shaped, and correspondingly, the flow guide assembly 2 is an imitated hump flow guide assembly 2. It can be seen that the hump-like flow guide assembly 2 can ensure the noise reduction effect and simultaneously improve the flow velocity of the air flow by utilizing the gradually increased interval from one side close to the volute 1 to one side far away from the volute 1 in the height direction of the volute 1, thereby improving the air volume of the range hood.
As shown in fig. 1, 5, 6 and 7, the end surface of the first flow guiding member 20 close to the second flow guiding member 21 is a slope, and the slope is inclined from the side close to the bottom of the scroll casing 1 to the side far from the bottom of the scroll casing 1 in the direction far from the second flow guiding member 21. The end surface of the second flow guiding member 21 close to the first flow guiding member 20 is an inclined surface, and the inclined surface inclines towards the direction far away from the first flow guiding member 20 from the side close to the bottom of the volute 1 to the side far away from the bottom of the volute 1.
The end face of the first flow guide part 20 close to the second flow guide part 21 is an inclined face, and the end face of the second flow guide part 21 close to the first flow guide part 20 is an inclined face, so that compared with the case that the end face is a curved face, the air flow can be divided into two air flows flowing along the annular direction of the volute more quickly and smoothly, and further the air flow can be driven to flow faster.
As shown in fig. 5, the first air guiding member 20 is groove-shaped, the first air guiding member 20 includes two first side plates 200, the two first side plates 200 are respectively located at two air guiding side walls of the first air guiding member 20, top edges of the two first side plates 200 are connected to the bottom of the scroll casing 1 at intervals, and bottom edges of the two first side plates 200 are connected to each other. The second flow guiding member 21 is groove-shaped, the second flow guiding member 21 includes two second side plates 210, the two second side plates 210 are respectively located at two flow guiding side walls of the second flow guiding member 21, top edges of the two second side plates 210 are connected to the bottom of the scroll casing 1 at intervals, and bottom edges of the two second side plates 210 are connected to each other.
In practical applications, the first flow guide element 20 and the second flow guide element 21 may be both solid structures or may be both hollow structures. Compared with a solid structure, the hollow structure has lighter weight, so that the overall weight of the fan structure can be lighter, and therefore, in the embodiment, it is preferable that the first flow guide part 20 and the second flow guide part 21 are both groove-shaped.
The first side plate 200 is used to form two spaced apart guide sidewalls of the first guide 20, and the second side plate 210 is used to form two spaced apart guide sidewalls of the second guide 21.
As shown in fig. 6, in order to stably mount the first baffle 20 and the second baffle 21 at the bottom of the scroll casing 1, the sides of the first side plate 200 and the second side plate 210 close to the bottom of the scroll casing 1 may be arc-shaped corresponding to the shape of the bottom of the scroll casing 1, and the arc-shaped may make the sides of the first side plate 200 and the second side plate 210 close to the bottom of the scroll casing 1 fit at the bottom of the scroll casing 1.
Further, as shown in fig. 8, the plate surfaces of the first side plate 200 and the second side plate 210 are both arc surfaces. In the two first side plates 200, the plate surface of any one first side plate 200 protrudes in a direction away from the other first side plate 200. The plate surface of any one of the two second side plates 210 protrudes away from the other second side plate 210.
In practical applications, the two first side plates 200 may be disposed in parallel, and the two second side plates 210 may also be disposed in parallel.
Because the face of first curb plate 200 and the face of second curb plate 210 are the inclined plane or are the cambered surface, can also play the guide effect to the air current after the reposition of redundant personnel for through the air intake department of the flow direction both sides of spiral case 1 that the air current of reposition of redundant personnel can be smooth and easy, noise reduction that can be further, therefore in order to promote reposition of redundant personnel guide effect, the face of first curb plate 200 and the face of second curb plate 210 can also be the inclined plane or be the cambered surface. The surface of the first side plate 200 and the surface of the second side plate 210 are both inclined surfaces, the first diversion piece 20 does not include the first bottom plate 201, and when the second diversion piece 21 does not include the second bottom plate 211, the first side plate 200 and the second side plate 210 can be arranged in a V-shape.
Compared with an inclined surface, the flow-dividing guiding effect of the arc surface is better, so that the plate surface of the first side plate 200 and the plate surface of the second side plate 210 are both the arc surfaces in the embodiment.
In order to ensure the flow guiding effect of the arc surface, in the two first side plates 200, the surface of any one first side plate 200 needs to protrude towards the direction away from the other first side plate 200. In the two second side plates 210, the plate surface of any one second side plate 210 needs to protrude in a direction away from the other second side plate 210.
As shown in fig. 5, 7 and 8, the first baffle member 20 further includes a first bottom plate 201 and two first end plates 202, or the second baffle member 21 further includes a second bottom plate 211 and two second end plates 212. Alternatively, the first baffle member 20 further includes a first bottom plate 201 and two first end plates 202, and the second baffle member 21 further includes a second bottom plate 211 and two second end plates 212.
The first bottom plate 201 is connected between the two first side plates 200, the two first end plates 202 are respectively located at two ends of the first air guiding element 20, one of the first end plates 202 is connected with the first side plates 200 and the first bottom plate 201, and the other first end plate 202 is connected with the first side plates 200 and the first bottom plate 201.
The second bottom plate 211 is connected between the two second side plates 210, the two second end plates 212 are respectively located at two ends of the second air guiding element 21, one of the second end plates 212 is connected with the second side plates 210 and the second bottom plate 211, and the other second end plate 212 is connected with the second side plates 210 and the second bottom plate 211.
The first bottom panel 201, the two first end panels 202 and the two first side panels 200 connected together make the first baffle member 20 channel-shaped, and the second bottom panel 211, the two second end panels 212 and the two second side panels 210 connected together make the second baffle member 21 channel-shaped.
When the first air guide 20 includes the first bottom plate 201 and the second air guide 21 includes the second bottom plate 211, both the first bottom plate 201 and the second bottom plate 211 can be installed on the fume collecting hood 4 under the fan structure in the range hood, and at this time, the first bottom plate 201 and the second bottom plate 211 can improve the installation stability of the first air guide 20 and the second air guide 21.
The first end plate 202 and the second end plate 212 may be attached to the inner side wall of the chassis 3. At this time, the first end plate 202 and the first bottom plate 201 are matched with each other, and the second end plate 212 and the second bottom plate 211 are matched with each other, so that gaps between the side wall of the volute 1, which is not provided with the air inlet, and the inner side wall of the case 3 can be shielded under the volute 1, and the air flow is prevented from entering the gaps to generate noise, and further the noise reduction effect can be improved.
In the present embodiment, as shown in fig. 9, the first guide member 20 and the second guide member 21 may be provided independently of each other. As shown in fig. 5, 6 and 7, the flow directing assembly 2 may further include a curved connecting plate 5. The curved connecting plate 5 is connected between the first guide piece 20 and the second guide piece 21 in a smooth transition mode, and the curved connecting plate 5 is attached to the bottom of the volute 1.
The curved surface connecting plate 5 is used for connecting the first guide part 20 and the second guide part 21 together, the curved surface connecting plate 5 can be connected with the bottom of the volute 1, the curved surface connecting plate 5 can improve the stability of the overall structure of the guide assembly 2, and the convenience in the installation process of the first guide part 20 and the second guide part 21 can be improved.
It should be noted that, because the curved connecting plate 5 is plate-shaped and is attached to the bottom of the scroll casing 1, the curved connecting plate 5 still can make the first flow guiding member 20 and the second flow guiding member 21 have a gap therebetween.
As shown in fig. 2, 7 and 10, the bottom of the volute 1 is provided with a connecting rib 10 extending along the circumferential direction of the volute 1, the curved surface connecting plate 5 is provided with a strip-shaped hole 50 corresponding to the connecting rib 10, and the connecting rib 10 is embedded in the strip-shaped hole 50.
The connecting rib 10 embedded in the strip-shaped hole 50 can play a role in positioning and can improve the connection stability between the bottom of the volute 1 and the flow guide assembly 2.
Wherein, the splice bar 10 can set up in the middle part of the bottom of spiral case 1, and the length of splice bar 10 can be enough long to make the one end of keeping away from second water conservancy diversion spare 21 of first water conservancy diversion spare 20 to and, the one end of keeping away from first water conservancy diversion spare 20 of second water conservancy diversion spare 21 all is located the splice bar 10 below. In this case, a first locking groove may be formed on the top edge of the first end plate 202 adjacent to the second baffle member 21, and a second locking groove may be formed on the top edge of the second end plate 212 adjacent to the first baffle member 20. The connecting rib 10 is embedded in the first slot, the strip-shaped hole 50 and the second slot in sequence.
When the connecting rib 10 is embedded in the first clamping groove, the strip-shaped hole 50 and the second clamping groove in sequence, the connecting rib 10 can further improve the connection stability between the bottom of the volute 1 and the diversion assembly 2, and the connecting rib 10 can enable the acting force between the diversion assembly 2 and the bottom of the volute 1 to be distributed more uniformly, so that the stress of each joint between the diversion assembly 2 and the volute 1 is smaller, and the firmness between the diversion assembly 2 and the volute 1 is improved.
As shown in fig. 7, the curved connecting plate 5 is provided with oil leakage holes 51.
The oil leakage hole 51 enables oil accumulated on the volute 1 to flow out after passing through the flow guide assembly 2 in the oil smoke flowing process, and oil leakage of the volute 1 is facilitated.
Example two:
the lampblack absorber that this embodiment provided includes the fan structure in the embodiment one, therefore the same technical problem can be solved with the fan structure in the embodiment one to the lampblack absorber that this embodiment provided, reaches the same technological effect, no longer gives details here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A fan structure is characterized by comprising a volute (1), a flow guide assembly (2) and a case (3);
the volute (1) and the flow guide assembly (2) are both installed inside the case (3), and the top of the volute (1) is connected with the inner side of the top of the case (3);
one side of the flow guide assembly (2) is connected with the bottom of the volute (1), and the other side of the flow guide assembly (2) is used for being connected with the top of a smoke collecting hood (4) communicated below the case (3);
the flow guide assembly (2) is used for dividing the airflow flowing to the lower part of the volute (1) from the fume collecting hood (4) and guiding the airflow to air inlets on two sides of the volute (1).
2. The fan structure according to claim 1, characterized in that the flow guide assembly (2) comprises a first flow guide (20) and a second flow guide (21);
the first flow guide part (20) and the second flow guide part (21) are arranged on two sides of the lowest point of the bottom of the volute (1) at intervals in the circumferential direction of the volute (1);
the first flow guide part (20) and the second flow guide part (21) are respectively provided with two flow guide side walls which are arranged at intervals, each flow guide side wall comprises a top edge and a bottom edge, and the distance between the top edges of any two flow guide side walls which are arranged at intervals is larger than that between the bottom edges.
3. The fan structure according to claim 2, wherein the end surface of the first flow guide member (20) close to the second flow guide member (21) is a slope, and the slope is inclined from the side close to the bottom of the scroll casing (1) to the side far from the bottom of the scroll casing (1) in the direction far from the second flow guide member (21);
the end face, close to the first flow guide part (20), of the second flow guide part (21) is an inclined face, and the inclined face inclines towards the direction far away from the first flow guide part (20) from the side close to the bottom of the volute (1) to the side far away from the bottom of the volute (1).
4. The fan structure according to claim 2, wherein the first air guiding member (20) is groove-shaped, the first air guiding member (20) comprises two first side plates (200), the two first side plates (200) are respectively located at two air guiding side walls of the first air guiding member (20), the top edges of the two first side plates (200) are connected to the bottom of the volute (1) at intervals, and the bottom edges of the two first side plates (200) are connected to each other;
the second flow guide part (21) is groove-shaped, the second flow guide part (21) comprises two second side plates (210), the two second side plates (210) are respectively located on two flow guide side walls of the second flow guide part (21), the top edges of the two second side plates (210) are connected to the bottom of the volute (1) at intervals, and the bottom edges of the two second side plates (210) are connected with each other.
5. The fan structure according to claim 4, wherein the plate surface of the first side plate (200) and the plate surface of the second side plate (210) are both cambered surfaces;
the plate surface of any one first side plate (200) of the two first side plates (200) protrudes towards the direction far away from the other first side plate (200); the plate surface of any one of the two second side plates (210) protrudes in a direction away from the other second side plate (210).
6. The fan structure according to claim 4, characterized in that the first flow guide (20) further comprises a first bottom plate (201) and two first end plates (202);
the first bottom plate (201) is connected between the two first side plates (200), the two first end plates (202) are respectively positioned at the two ends of the first air guide piece (20), one of the first end plates (202) is connected with the first side plates (200) and the first bottom plate (201), and the other first end plate (202) is connected with the first side plates (200) and the first bottom plate (201);
and/or the second flow guide piece (21) further comprises a second bottom plate (211) and two second end plates (212);
the second bottom plate (211) is connected between the two second side plates (210), the two second end plates (212) are respectively located at two ends of the second flow guide piece (21), one of the second end plates (212) is connected with the second side plates (210) and the second bottom plate (211), and the other one of the second end plates (212) is connected with the second side plates (210) and the second bottom plate (211).
7. The fan structure according to any of claims 2-6, characterized in that the flow guiding assembly (2) further comprises a curved connection plate (5);
the curved surface connecting plate (5) is connected between the end parts of the first flow guide part (20) and the second flow guide part (21) which are close to each other in a smooth transition mode, and the curved surface connecting plate (5) is attached to the bottom of the volute (1).
8. The fan structure according to claim 7, characterized in that the bottom of the volute (1) is provided with a connecting rib (10) extending in the circumferential direction of the volute (1);
the curved surface connecting plate (5) is provided with a strip-shaped hole (50) corresponding to the connecting rib (10), and the connecting rib (10) is embedded in the strip-shaped hole (50).
9. The fan structure according to claim 7, characterized in that the curved connecting plate (5) is provided with oil leakage holes (51).
10. A range hood, characterized in that it comprises a fan structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868227.3A CN111946669A (en) | 2020-08-25 | 2020-08-25 | Fan structure and lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868227.3A CN111946669A (en) | 2020-08-25 | 2020-08-25 | Fan structure and lampblack absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946669A true CN111946669A (en) | 2020-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010868227.3A Pending CN111946669A (en) | 2020-08-25 | 2020-08-25 | Fan structure and lampblack absorber |
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| Country | Link |
|---|---|
| CN (1) | CN111946669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
-
2020
- 2020-08-25 CN CN202010868227.3A patent/CN111946669A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
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