CN217842078U - Fan supercharging system and side-draft range hood - Google Patents
Fan supercharging system and side-draft range hood Download PDFInfo
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- CN217842078U CN217842078U CN202222133984.3U CN202222133984U CN217842078U CN 217842078 U CN217842078 U CN 217842078U CN 202222133984 U CN202222133984 U CN 202222133984U CN 217842078 U CN217842078 U CN 217842078U
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Abstract
The application relates to the field of kitchen equipment, in particular to a fan supercharging system and a side suction type range hood. The fan supercharging system is used for the side-draft range hood and comprises a supercharging plate and a centrifugal fan; the supercharging plate is positioned at the air inlet of a fan of a centrifugal fan of the side-draft range hood, the wind shielding surface of the supercharging plate is perpendicular to the plane where the air inlet of the fan is positioned, and one side of the supercharging plate, which is far away from the air inlet of the fan, is connected with the shell of the side-draft range hood; the wind shielding surface of the pressure increasing plate faces the direction of the air outlet of the centrifugal fan, and the pressure increasing plate can block airflow flowing back from the air outlet. The application provides a fan turbocharging system sets up the pressure boost board through fan air intake department at centrifugal fan to block the inside palirrhea air current that comes out of centrifugal fan, thereby can improve the complete machine static pressure, effectively improve the static pressure loss that centrifugal fan's air outlet produced under the state of being obstructed, promote the smoking effect.
Description
Technical Field
The application relates to the field of kitchen equipment, in particular to a fan supercharging system and a side suction type range hood.
Background
In the range hood, the fan system has direct influence on the smoke exhaust effect and the working performance of the range hood. Therefore, under the same working condition, the stronger the capability of the fan for overcoming the back pressure is, the better the corresponding smoke exhaust effect is.
Because of the limitation of kitchen area, the ultra-thin range hood which is miniaturized and does not occupy the space of a cabinet begins to be popular, the range hood generally adopts a close-suction mode, a long and narrow circulation channel is arranged in the range hood, when the outlet end of the range hood is subjected to larger resistance, air can be reversely pressed back to the long and narrow circulation channel from the inside of a fan, and the long and narrow channel does not block the air, so that the fan overcomes the reduction of back pressure capacity, and the smoking effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a fan turbocharging system and side suction formula range hood for improve the static pressure loss that centrifugal fan's air outlet produced under the state of being obstructed, promote the smoking effect.
The application provides a fan supercharging system which is used for a side-draft range hood and comprises a supercharging plate and a centrifugal fan;
the supercharging plate is positioned at the air inlet of a fan of a centrifugal fan of the side-draft range hood, the wind shielding surface of the supercharging plate is perpendicular to the plane where the air inlet of the fan is positioned, and one side of the supercharging plate, which is far away from the air inlet of the fan, is connected with the shell of the side-draft range hood;
the wind shielding surface of the pressure increasing plate faces the direction of the air outlet of the centrifugal fan, and the pressure increasing plate can block airflow flowing back from the air outlet.
In the above technical solution, further, the pressure increasing plate and the centrifugal fan have the following relative positions:
establishing a rectangular coordinate system under a visual angle facing the air inlet of the fan, wherein the origin of the rectangular coordinate system is the rotation center of the centrifugal fan, and the rotation direction of the centrifugal fan is clockwise;
the projection of the air outlet on the rectangular coordinate system is positioned in a second quadrant of the rectangular coordinate system, and the projection of the airflow direction of the air outlet on the rectangular coordinate system is the positive direction of a Y axis;
the pressurizing plate comprises a flat plate part, and the projection of the windshield surface of the flat plate part on the rectangular coordinate system is a preset line segment; the preset line segment is located in a first quadrant of the rectangular coordinate system, one end of the preset line segment faces the original point, and the preset line segment forms a preset quadrant angle.
In the above technical solution, further, an extension line of the preset line segment passes through the origin.
In the above technical solution, further, a distance between one end of the preset line segment facing the origin and the origin is between 75mm and 130 mm;
the preset quadrant angle is between 20 degrees and 30 degrees.
In the above technical solution, further, the pressure increasing plate further includes an arc-shaped plate portion, and the arc-shaped plate portion is connected to the flat plate portion;
the projection of the wind shielding plate surface of the arc-shaped plate part on the rectangular coordinate system is a preset arc line, and the preset arc line is positioned in a first quadrant of the rectangular coordinate system;
the one end of predetermineeing the pitch arc with predetermine the line segment and keep away from the one end of initial point is tangent, just predetermine the pitch arc to the projection one side direction of air outlet is crooked.
In the above technical solution, further, an electrical box is further included;
the electric appliance box is arranged in the shell, and one end of the arc-shaped plate part, which is far away from the flat plate part, is connected with the electric appliance box;
the electrical apparatus box is in rectangular coordinate's projection is located rectangular coordinate's first quadrant, just electrical apparatus box's projection is located the upper right side of predetermineeing the pitch arc.
In the above technical solution, further, the pressure increasing plate further includes a first connecting edge and a second connecting edge;
the first connecting edge is connected with the flat plate part and forms a first preset included angle with the flat plate part, and the first connecting edge can be attached and connected with the shell;
the second connect along with the arc board connect and with the arc board is the second and predetermines the contained angle, the second connect along can with the electrical apparatus box laminating is connected.
In the above technical scheme, further, fan air inlet department is provided with the oil cleaner screen, the pressure boost plate is kept away from one side of casing with the oil cleaner screen pastes mutually.
In the above technical solution, further, the top end of the air inlet of the housing is lower than the center of the air inlet of the fan.
The application also provides a side-draft range hood, which comprises the fan supercharging system.
Compared with the prior art, the beneficial effects of this application do:
the application provides a fan turbocharging system sets up the pressure boost board through fan air intake department at centrifugal fan to block the inside palirrhea air current that comes out of centrifugal fan, thereby can improve the complete machine static pressure, effectively improve the static pressure loss that centrifugal fan's air outlet produced under the state of being hindered, promote the smoking effect.
The application also provides a side-draft range hood, which comprises the fan supercharging system. Based on the above analysis, the side-draft range hood has the same beneficial effects, and the details are not repeated herein.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a side-draft range hood provided in the present application;
FIG. 2 is a schematic view of a wind direction of a side draft range hood without a pressure increasing plate in the prior art;
fig. 3 is a schematic wind direction diagram of the side draft range hood provided with the pressure increasing plate according to the present application;
FIG. 4 is a schematic diagram of a position of a pressure increasing plate provided by the present application in a rectangular coordinate system;
fig. 5 is a schematic structural view of a pressure increasing plate provided in the present application.
In the figure: 101-a pressure increasing plate; 102-a centrifugal fan; 103-a housing; 104-an air inlet of the housing; 105-a fan air inlet; 106-an air outlet of the centrifugal fan; 107-a flat plate portion; 108-an arcuate plate portion; 109-electrical box; 110-a first connecting edge; 111-a second connecting edge; 112-oil screen.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. 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 application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example one
Referring to fig. 1 to 5, the blower supercharging system provided by the present application is used for a side-draft range hood, and includes a supercharging plate 101 and a centrifugal blower 102.
The pressure increasing plate 101 and the centrifugal fan 102 are installed in a housing 103 of the side draft range hood, the top end of an air inlet 104 of the housing is lower than the center of an air inlet 105 of the fan, external flue gas sequentially passes through the air inlet on the housing 103 and the air inlet 105 of the centrifugal fan 102 to enter the centrifugal fan 102, and finally is discharged from an air outlet 106 of the centrifugal fan.
The pressure increasing plate 101 is located at a fan air inlet 105 of a centrifugal fan 102 of the side-draft range hood, a wind shielding surface of the pressure increasing plate 101 is perpendicular to a plane where the fan air inlet 105 is located, and the vertically arranged pressure increasing plate 101 does not excessively shield the fan air inlet 105, that is, the air intake of the centrifugal fan 102 is not affected.
The side of the pressure increasing plate 101 away from the air inlet 105 of the fan is connected to the housing 103 of the side-suction range hood, so as to fix the pressure increasing plate 101. The wind shielding surface of the pressure increasing plate 101 faces the direction of the air outlet 106 of the centrifugal fan, and the pressure increasing plate 101 can block airflow flowing back from the air outlet.
Specifically, referring to fig. 2, in the case where the pressure increasing plate 101 is not provided, when the air flow is subjected to resistance at the air outlet 106 of the centrifugal fan, the air flow returns from the air outlet into the centrifugal fan 102 and flows out from the fan inlet 105, the dotted line in fig. 2 shows the flow path of the air flow, and the arrow on the dotted line shows the flow direction of the air flow (E direction shown in fig. 2).
Referring to fig. 3, a pressure increasing plate 101 is disposed at a fan inlet 105 of the centrifugal fan 102, so that airflow flowing back from the inside of the centrifugal fan 102 is blocked by the pressure increasing plate 101, and is then pressed back into the centrifugal fan 102, thereby achieving the purpose of increasing the static pressure of the whole machine. The dotted line in fig. 3 shows the flow path of the airflow, and the arrow on the dotted line shows the flow direction of the airflow (the G direction shown in fig. 3).
The application provides a fan turbocharging system sets up pressure boost board 101 through fan air intake 105 department at centrifugal fan 102 to block the inside backward flow air current that comes out of centrifugal fan 102, thereby can improve the complete machine static pressure, effectively improve the static pressure loss that centrifugal fan's air outlet 106 produced under the state of being hindered, promote the smoking effect of side-draught range hood.
In an alternative solution of this embodiment, the pressure increasing plate 101 and the centrifugal fan 102 have the following relative positions:
referring to fig. 4, a partial structure of the centrifugal fan 102 is hidden in order to show the pressure increasing plate 101. A rectangular coordinate system is established under the view angle facing the fan air inlet 105, the origin O of the rectangular coordinate system is the rotation center of the centrifugal fan 102, and the rotation direction of the centrifugal fan 102 is clockwise. In the prior art, a centrifugal fan comprises a right-handed fan and a left-handed fan. The rotation direction of the centrifugal fan can be judged by looking at the centrifugal fan from the side of the motor: the impeller rotates clockwise, and the impeller is called a right rotating fan; the impeller rotates counterclockwise, called a left-turn fan.
The projection of the air outlet on the rectangular coordinate system is located in the second quadrant of the rectangular coordinate system, the direction of the air outlet is upward, and the projection of the airflow direction (the direction F shown in fig. 2 to 4) of the air outlet on the rectangular coordinate system is the positive direction of the y axis.
Specifically, referring to fig. 4 and 5, the pressure increasing plate 101 includes a flat plate portion 107, and a projection of the windshield surface of the flat plate portion 107 in a rectangular coordinate system is a preset line segment AB. The preset line segment AB is located in a first quadrant of the rectangular coordinate system, and one end of the preset line segment AB faces the origin O.
Preferably, the extension line of the preset line segment AB passes through the origin O, and in practical applications, a certain deviation may exist between the extension line of the preset line segment AB and the origin O. The distance between one end point a of the preset line segment AB toward the origin O and the origin O (the length d of the line end OA in fig. 4) is 75mm to 130 mm. The preset line segment AB forms a preset quadrant angle (angle a in fig. 4) which is between 20 degrees and 30 degrees.
More specifically, as shown in fig. 4 and 5, the pressure increasing plate 101 further includes an arc-shaped plate portion 108, the arc-shaped plate portion 108 being connected to the flat plate portion 107; the projection of the windshield surface of the arc-shaped plate part 108 in the rectangular coordinate system is a preset arc BC, and the preset arc BC is positioned in the first quadrant of the rectangular coordinate system; one end of the preset arc BC is tangent to a endpoint B of the preset line segment AB, which is far away from the original point O, and the preset arc BC is bent towards the direction of one side of the projection of the air outlet.
Referring to fig. 3 to 5, when the pressure increasing plate 101 is located at the position shown in the figure, and airflow flows out from the inside of the fan and hits the flat plate portion 107, the flat plate portion 107 can block the airflow, an arc-shaped plate portion 108 is disposed at the tail end of the flat plate portion 107, and the inclined flat plate portion 107 can guide the airflow to the arc-shaped plate portion 108 from the upper right direction, so that the airflow can be turned around and then flows back to the air outlet. The wind-shielding plate surface of the arc-shaped plate portion 108 is tangent to the wind-shielding plate surface of the flat plate portion 107, and the wind-shielding plate surface formed by the wind-shielding plate surface of the flat plate portion 107 and the wind-shielding plate surface of the arc-shaped plate portion 108 is arranged in a streamline shape, so that wind resistance and noise can be reduced, and airflow can flow back more easily.
In an optional solution of this embodiment, the blower supercharging system further includes an electrical box 109; the electrical box 109 is arranged in the shell 103, and one end of the arc-shaped plate part 108 far away from the flat plate part 107 is connected with the electrical box 109; the projection of the electrical box 109 on the rectangular coordinate system is located in the first quadrant of the rectangular coordinate system, and the projection of the electrical box 109 is located on the upper right of the preset arc BC.
In this embodiment, the rear end of the arc-shaped plate portion 108 is connected to the electrical box 109 of the side-suction range hood to fix the pressure increasing plate 101. When the airflow flows to the electrical box 109 along the wind shielding plate surface of the arc plate 108, the electrical box 109 can further block and guide the airflow, so that the airflow flows back to the air outlet. The side-suction type range hood has the advantages that the electrical box 109 of the side-suction type range hood is reasonably utilized as a component for blocking airflow, the side-suction type range hood is multipurpose, and the utilization rate of parts is improved.
Preferably, the top surface of the electrical box 109 is attached to the top plate of the housing 103, and the pressure increasing plate 101, the electrical box 109 and the housing 103 can enclose the airflow therein, so that the airflow is not easy to escape, and most of the airflow can be guided to the air outlet.
In an alternative of this embodiment, the pressure increasing plate 101 further includes a first connecting edge 110 and a second connecting edge 111; the first connecting edge 110 is connected with the flat plate portion 107 and forms a first preset included angle with the flat plate portion 107, so that the first connecting edge 110 can be attached to the shell 103; the second is connected along 111 and is connected and be the second with arc board 108 and predetermine the contained angle to make the second connect along 111 can be connected with the laminating of electrical apparatus box 109 with arc board 108. The pressure increasing plate 101 is connected to the housing 103 and the electrical box 109, respectively, and the connection manner may be welding, riveting or screwing, so as to reliably mount and fix the pressure increasing plate 101.
Preferably, the pressure increasing plate 101 is bent to form the first connecting edge 110 and the second connecting edge 111, and the pressure increasing plate 101 is integrally formed and has higher setting strength.
Example two
The blower supercharging system in the second embodiment is an improvement on the basis of the above embodiment, technical contents disclosed in the above embodiment are not described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.
Referring to fig. 1, in an alternative of this embodiment, an oil filter 112 is disposed at the fan inlet 105, and a side of the pressure increasing plate 101 away from the housing 103 is attached to the oil filter 112, so that the airflow can be prevented from escaping from a gap between the pressure increasing plate 101 and the oil filter 112, and most of the airflow can be guided to the air outlet.
EXAMPLE III
The third embodiment of the application provides a side-draft range hood, which comprises the blower supercharging system of any one of the above embodiments, so that all the beneficial technical effects of the blower supercharging system of any one of the above embodiments are achieved, and the description is omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill 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 these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those of skill in the art will understand that although some embodiments herein include some features included in other embodiments, not others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
Claims (10)
1. A blower fan supercharging system is used for a side-draft range hood and is characterized by comprising a supercharging plate and a centrifugal blower fan;
the supercharging plate is positioned at the air inlet of a fan of a centrifugal fan of the side-draft range hood, the wind shielding surface of the supercharging plate is perpendicular to the plane where the air inlet of the fan is positioned, and one side of the supercharging plate, which is far away from the air inlet of the fan, is connected with the shell of the side-draft range hood;
the wind shielding surface of the pressure increasing plate faces the direction of the air outlet of the centrifugal fan, and the pressure increasing plate can block airflow flowing back from the air outlet.
2. The fan booster system of claim 1, wherein the booster plate and the centrifugal fan have the following relative positions:
establishing a rectangular coordinate system under a visual angle facing the air inlet of the fan, wherein the origin of the rectangular coordinate system is the rotation center of the centrifugal fan, and the rotation direction of the centrifugal fan is clockwise;
the projection of the air outlet on the rectangular coordinate system is positioned in a second quadrant of the rectangular coordinate system, and the projection of the airflow direction of the air outlet on the rectangular coordinate system is the positive direction of a Y axis;
the pressurizing plate comprises a flat plate part, and the projection of the windshield surface of the flat plate part on the rectangular coordinate system is a preset line segment; the preset line segment is located in a first quadrant of the rectangular coordinate system, one end of the preset line segment faces the original point, and the preset line segment forms a preset quadrant angle.
3. The blower supercharging system of claim 2, wherein an extension of the predetermined line segment passes through the origin.
4. The fan supercharging system of claim 2, wherein a distance between an end of the predetermined line segment facing the origin and the origin is between 75mm and 130 mm;
the preset quadrant angle is between 20 degrees and 30 degrees.
5. The fan supercharging system of claim 2, wherein said supercharging plate further comprises an arcuate plate portion connected to said flat plate portion;
the projection of the wind shielding plate surface of the arc-shaped plate part on the rectangular coordinate system is a preset arc line, and the preset arc line is positioned in a first quadrant of the rectangular coordinate system;
the one end of predetermineeing the pitch arc with predetermine the line segment and keep away from the one end of initial point is tangent, just predetermine the pitch arc to the projection one side direction of air outlet is crooked.
6. The blower pressurization system of claim 5, further comprising an electrical box;
the electric appliance box is arranged in the shell, and one end of the arc-shaped plate part, which is far away from the flat plate part, is connected with the electric appliance box;
the electrical apparatus box is in rectangular coordinate's projection is located rectangular coordinate's first quadrant, just electrical apparatus box's projection is located the upper right side of predetermineeing the pitch arc.
7. The fan supercharging system of claim 6, wherein said supercharging panel further comprises a first connecting edge and a second connecting edge;
the first connecting edge is connected with the flat plate part and forms a first preset included angle with the flat plate part, and the first connecting edge can be attached and connected with the shell;
the second connect along with the arc board connect and with the arc board is the second and predetermines the contained angle, the second connect along can with the electrical apparatus box laminating is connected.
8. The fan supercharging system of claim 1, wherein an oil filter screen is disposed at the air inlet of the fan, and one side of the supercharging plate, which is far away from the housing, is attached to the oil filter screen.
9. The fan supercharging system of claim 1, wherein the top end of the air inlet of the housing is lower than the center of the fan inlet.
10. A side draft range hood, comprising the blower plenum system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133984.3U CN217842078U (en) | 2022-08-12 | 2022-08-12 | Fan supercharging system and side-draft range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133984.3U CN217842078U (en) | 2022-08-12 | 2022-08-12 | Fan supercharging system and side-draft range hood |
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| Publication Number | Publication Date |
|---|---|
| CN217842078U true CN217842078U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222133984.3U Active CN217842078U (en) | 2022-08-12 | 2022-08-12 | Fan supercharging system and side-draft range hood |
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| Country | Link |
|---|---|
| CN (1) | CN217842078U (en) |
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- 2022-08-12 CN CN202222133984.3U patent/CN217842078U/en active Active
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