CN216111332U - Centrifugal fan and cooking utensil - Google Patents
Centrifugal fan and cooking utensil Download PDFInfo
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- CN216111332U CN216111332U CN202122409135.1U CN202122409135U CN216111332U CN 216111332 U CN216111332 U CN 216111332U CN 202122409135 U CN202122409135 U CN 202122409135U CN 216111332 U CN216111332 U CN 216111332U
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Abstract
The utility model discloses a centrifugal fan and a cooking appliance, wherein the centrifugal fan comprises a fan main body and a support, the fan main body is arranged on the support, the support is provided with at least two connecting structures for connecting the cooking appliance, the connecting structures are arranged at intervals along the circumferential direction of the support, and the cooking appliance is selectively matched with any one connecting structure. Specifically, when centrifugal fan is used for cooking utensil, the fan body passes through the support mounting on cooking utensil's mounted position, when needs are adjusted centrifugal fan's installation angle, through the gesture of adjustment support, make centrifugal fan's installation angle accord with cooking utensil's installation demand, again with the mounting position correspond connection structure fix the mounted position can, through set up a plurality of connection structures at the interval in the circumference of support, thereby centrifugal fan's multi-angle installation has been satisfied, thereby centrifugal fan's commonality has been improved, and then the manufacturing cost of product has been reduced.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to a centrifugal fan and a cooking appliance.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
Cooking utensil, take the OTR (over the range) microwave oven as an example, this cooking utensil has culinary art and oil smoke suction function, and in order to realize the function of suction oil smoke, cooking utensil includes the wind channel subassembly that has centrifugal fan, and in the in-process of suction oil smoke, centrifugal fan provides power for sucking the oil smoke.
Among the prior art, centrifugal fan includes fan body and support, and the fan body passes through the support mounting at cooking utensil's mounted position, and the structure of support only can satisfy the installation of the single angle of centrifugal fan, when centrifugal fan need carry out angle adjustment according to the air-out direction, needs redesign supporting structure to lead to the manufacturing cost who makes the product to increase.
SUMMERY OF THE UTILITY MODEL
The utility model aims to at least solve the problem of how to mount a bracket in multiple angles of a centrifugal fan. The purpose is realized by the following technical scheme:
a first aspect of the present invention proposes a centrifugal fan comprising:
a fan main body;
the fan main body is installed on the support, the support is provided with connecting structures used for being connected with cooking appliances, the number of the connecting structures is at least two, the connecting structures are arranged along the circumferential direction of the support at intervals, and the cooking appliances are selectively matched with any one of the connecting structures.
According to the centrifugal fan disclosed by the utility model, when the centrifugal fan is used for a cooking appliance, the fan body is arranged on the mounting position of the cooking appliance through the support, when the mounting angle of the centrifugal fan needs to be adjusted, the mounting angle of the centrifugal fan is enabled to meet the mounting requirement of the cooking appliance by adjusting the posture of the support, then the connecting structure corresponding to the mounting position is fixed on the mounting position, and the plurality of connecting structures are arranged at intervals in the circumferential direction of the support, so that the multi-angle mounting of the centrifugal fan is met, the universality of the centrifugal fan is improved, and the manufacturing cost of a product is further reduced.
In addition, the centrifugal fan according to the present invention may further have the following additional technical features:
in some embodiments of the utility model, the stent comprises:
the fan main body is matched with the bottom plate;
the side plate is connected at an angle to the edge of the bottom plate, a plurality of plate body parts are arranged along the circumferential direction of the bottom plate, the number of the plate body parts is consistent with that of the connecting structures, and the connecting structures correspond to the plate body parts.
In some embodiments of the utility model, the connecting structure is a set of holes opened on the plate portion.
In some embodiments of the utility model, the set of holes includes a plurality of mounting holes spaced along an edge of the plate body portion facing away from the base plate.
In some embodiments of the present invention, a protruding structure is disposed at a position of the plate body portion corresponding to the mounting hole;
and/or the edge of the plate body part between two adjacent mounting holes is provided with a groove structure.
In some embodiments of the utility model, the blower body comprises:
a volute fitted to one side of the base plate, and an air inlet of the base plate communicating with the volute;
an impeller rotatably disposed within the volute;
the driving part is matched with the bottom plate, the driving part and the volute are located on two opposite sides of the bottom plate, and a transmission shaft of the driving part penetrates through the air inlet to be in transmission connection with the impeller.
In some embodiments of the utility model, the air inlet is provided with a rounded chamfer.
In some embodiments of the utility model, the radius of the rounded chamfer is greater than or equal to the thickness of the base plate.
In some embodiments of the present invention, a concave arc surface surrounding the air inlet is disposed on a side surface of the bottom plate facing the driving member, and the concave arc surface is concavely disposed from the side plate to the air inlet.
A second aspect of the present invention provides a cooking appliance, comprising:
a body;
according to the centrifugal fan, the centrifugal fan is arranged on the machine body.
According to the cooking appliance, the fan body of the centrifugal fan is arranged on the mounting position of the cooking appliance through the support, when the mounting angle of the centrifugal fan needs to be adjusted, the mounting angle of the centrifugal fan is enabled to meet the mounting requirement of the cooking appliance through adjusting the posture of the support, then the connecting structure corresponding to the mounting position is fixed on the mounting position, and the connecting structures are arranged at intervals in the circumferential direction of the support, so that the multi-angle mounting of the centrifugal fan is met, the universality of the centrifugal fan is improved, and the manufacturing cost of a product is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a structural diagram of a cooking appliance according to a first embodiment of the utility model (the cooking appliance is a top air outlet structure, and black arrows in the drawing indicate the exhaust direction of air);
fig. 2 schematically shows a structural diagram of a cooking appliance according to a second embodiment of the utility model (the cooking appliance is a rear air outlet structure, and black arrows in the drawing indicate the exhaust direction of air);
fig. 3 schematically shows a structural diagram of a cooking appliance according to a third embodiment of the utility model (the cooking appliance is a front air outlet structure, and black arrows in the drawing indicate the exhaust direction of air);
FIG. 4 is a schematic partial structure view of the cooking appliance shown in FIG. 1;
FIG. 5 is a schematic structural view of a centrifugal fan of the cooking appliance shown in FIG. 4;
FIG. 6 is a schematic structural view of a first embodiment of a bracket of the centrifugal fan shown in FIG. 5;
FIG. 7 is a structural schematic view from another perspective of the bracket shown in FIG. 6;
fig. 8 is a structural schematic view of a second embodiment of a bracket of the centrifugal fan shown in fig. 5.
The reference numbers are as follows:
100 is a cooking utensil;
10 is a machine body;
20 is a centrifugal fan;
21 is a fan body;
211 is a volute, 212 is an impeller, 213 is a driving part;
22 is a bracket;
221 is a bottom plate;
2211 is an air inlet, 2212 is a round chamfer, 2213 is a concave arc surface, 2214 is a fixing hole, 2215 is a clamping hole and 2216 is a wiring harness hole;
222 is a side plate;
2221 is a plate body portion, 2222 is a hole group, 22221 is a mounting hole, 2223 is a projection structure, and 2224 is a groove structure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 8, according to an embodiment of the present invention, a centrifugal fan 20 is provided, the centrifugal fan 20 includes a fan main body and a support 22, the fan main body is mounted on the support 22, a connection structure for connecting a cooking utensil 100 is provided on the support 22, the number of the connection structures is at least two, each connection structure is arranged at intervals along a circumferential direction of the support 22, and the cooking utensil 100 is selectively matched with any one of the connection structures.
Specifically, when centrifugal fan 20 is used for cooking utensil 100, fan body 21 passes through support 22 and installs on cooking utensil 100's mounted position, when needs adjust centrifugal fan 20's mounted angle, through the gesture of adjustment support 22, make centrifugal fan 20's mounted angle accord with cooking utensil 100's installation demand, again with the mounted position correspond connection structure fix the mounted position can, interval sets up a plurality of connection structures in support 22's circumference, thereby centrifugal fan 20's multi-angle installation has been satisfied, thereby centrifugal fan 20's commonality has been improved, and then the manufacturing cost of product has been reduced.
It should be understood that the installation angle of the centrifugal fan 20 is adjusted to make the air outlet of the centrifugal fan 20 meet the air outlet requirement of the cooking utensil 100 (as shown in fig. 1, when the air outlet requirement of the top of the cooking utensil 100 needs to be met, the air outlet of the centrifugal fan 20 needs to be correspondingly arranged to the top of the cooking utensil 100; as shown in fig. 2, when the air outlet requirement of the cooking utensil 100 needs to be met, the air outlet of the centrifugal fan 20 needs to be correspondingly arranged to the rear of the cooking utensil 100; as shown in fig. 3, when the air outlet requirement of the cooking utensil 100 needs to be met, the air outlet of the centrifugal fan 20 needs to be correspondingly arranged to the front of the cooking utensil 100), the air outlet of the centrifugal fan 20 is arranged on the fan body 21, so that, by rotating the support 22, thereby can realize the adjustment to fan body 21 angle to utilize the connection structure of position after the adjustment to realize fixed the installation to centrifugal fan 20.
It should be noted that the number of the connecting structures is plural, and the specific number may be two, three, four, five … …, the plural connecting structures are arranged along the circumferential direction of the support 22, and by arranging the plural connecting structures in the circumferential direction of the support 22, when the centrifugal fan 20 is adjusted to a required installation angle, at least one connecting structure corresponds to the installation position of the cooking appliance 100, so as to meet the requirement of installing and fixing the centrifugal fan 20.
It is further understood that, as shown in fig. 6 and 7, the bracket 22 includes a bottom plate 221 and a side plate 222, the main body of the fan is matched with the bottom plate 221, the side plate 222 is connected to the edge of the bottom plate 221 at an angle, the side plate 222 is provided with a plurality of plate body portions 2221 along the circumferential direction of the bottom plate 221, the number of the plate body portions 2221 is the same as the number of the connecting structures, and the connecting structures are provided corresponding to the plate body portions 2221. Specifically, the side plate 222 is disposed on one side of the bottom plate 221, and the side plate 222 and the bottom plate 221 are disposed at an angle, in the circumferential direction of the bottom plate 221, the side plate 222 is formed by a plurality of plate body portions 2221, and two adjacent plate bodies are disposed at a predetermined included angle, and each plate body portion 2221 is provided with a connecting structure. When centrifugal fan 20 is used for cooking utensil 100, fan body 21 installs on support 22, sets up centrifugal fan 20 at cooking utensil 100's mounted position, rotates centrifugal fan 20 for centrifugal fan 20's installation angle satisfies cooking utensil 100's mounting demand, and when centrifugal fan 20's mounting angle accorded with the mounting demand, cooperatees the connection structure of support 22 current position and cooking utensil 100's mounted position, thereby realizes that centrifugal fan 20's installation is fixed.
It should be understood that the connection structure is provided on the plate body portion 2221 of the side plate 222, so that the strength of the connection structure can be improved, thereby ensuring the installation strength, i.e., stability, of the centrifugal fan 20.
It should be noted that the side plate 222 is disposed at an angle with the bottom plate 221, the angle is in the range of 0 to 180 °, the specific value of the angle is selected according to the design parameters of the centrifugal fan 20, and in the embodiment of the present invention, the angle formed between the side plate 222 and the bottom plate 221 is 90 °, that is, the side plate 222 is perpendicularly connected with the bottom plate 221.
In addition, the bottom plate 221 may be a circular or polygonal structure, in the present invention, the centrifugal fan 20 needs to meet the installation requirements of top exhaust, rear exhaust and front exhaust, therefore, the bottom plate 221 is configured to be a quadrilateral (as shown in fig. 6), that is, the bottom plate 221 includes four sides, the plate portions 2221 of the side plates 222 are three (the three plate portions 2221 can meet the installation requirements of the centrifugal fan 20 in the present invention), the three plate portions 2221 are respectively connected with three sides of the bottom plate 221, when in installation, after the centrifugal fan 20 is rotated to a required installation position, the connecting structure between the bracket 22 and the plate portion 2221 corresponding to the installation position is connected and fixed with the installation position, the overall structure is simple, the processing and the manufacturing cost can be effectively reduced.
In some embodiments of the present invention, the plurality of plate portions 2221 are separated, that is, two adjacent plate portions 2221 are spaced apart from each other, and the plurality of plate portions 2221 of the side plate 222 are separated, so that the mass of the bracket 22 can be reduced, and the centrifugal fan 20 can be produced in a light weight manner.
In some embodiments of the present invention, as shown in fig. 6, the plurality of plate portions 2221 are sequentially connected to form an integrated structure, and the plurality of plate portions 2221 of the side plate 222 are configured as an integrated structure, so that the strength of the plate portions 2221 can be effectively improved, and the strength of the connection structure can be further enhanced.
In some embodiments of the present invention, the bottom plate 221 and the side plate 222 are separated, and the bottom plate 221 and the side plate 222 are separately processed and then assembled, so that the structure of the mold can be simplified, and the manufacturing cost of the bracket 22 can be reduced. In this embodiment, the bottom plate 221 and the side plate 222 may be a metal member or a non-metal member, and when the bottom plate 221 and the side plate 222 are made of a metal member (for example, a stainless steel member), the bottom plate 221 and the side plate 222 are formed by stamping and then connected to each other by welding or the like; when the bottom plate 221 and the side plate 222 are made of non-metal (e.g., plastic), the bottom plate 221 and the side plate 222 are integrally formed, so that the manufacturing time can be shortened, and the manufacturing cost can be reduced.
In some embodiments of the present invention, the bottom plate 221 and the side plate 222 are an integral structure, and the bracket 22 is manufactured by integral molding, so that the manufacturing efficiency of the bracket 22 can be improved, and the manufacturing cost of the bracket 22 can be reduced. In this embodiment, the bottom plate 221 and the side plate 222 may be metal members or non-metal members, and when the bottom plate 221 and the side plate 222 are metal members, for example, stainless steel members, the bottom plate 221 and the side plate 222 are integrally formed by stamping or the like; when the bottom plate 221 and the side plate 222 are non-metal parts, for example, plastic parts, the bottom plate 221 and the side plate 222 are manufactured by injection molding.
Further, in the embodiment of the present invention, the blower main body includes the volute 211, the impeller 212, and the driving member 213, the volute 211 is engaged with one side of the bottom plate 221, and the air inlet 2211 of the bottom plate 221 is communicated with the volute 211, the impeller 212 is rotatably disposed in the volute 211, the driving member 213 is engaged with the bottom plate 221, and the driving member 213 and the volute 211 are located on opposite sides of the bottom plate 221, and the driving shaft of the driving member 213 is in driving connection with the impeller 212 through the air inlet 2211.
Specifically, the volute 211 has an air inlet, an air outlet, and an open end, the open end of the volute 211 abuts against one side of the bottom plate 221 of the bracket 22 and is fixed with the bottom plate 221, the bracket 22 closes the open end of the volute 211, the inside of the volute 211 can be communicated with the outside through the air inlet 2211 on the bottom plate 221, the air inlet 2211 and the air inlet are coaxially arranged, the air outlet is arranged on the side wall of the volute 211 between the air inlet and the air inlet 2211, the impeller 212 is arranged in the volute 211, one end of the impeller 212 is coaxially arranged with the air inlet, the other end of the impeller 212 is coaxially arranged with the air inlet 2211, and the rotating shaft of the driving member 213 is in transmission connection with the impeller 212 after passing through the air inlet 2211. When the centrifugal fan 20 needs to be started, the driving part 213 drives the impeller 212 to rotate in the volute 211, external air enters the volute 211 through the air inlet and the air inlet 2211 respectively and is discharged through the air outlet of the volute 211, and the air inlet 2211 and the air inlet are utilized to simultaneously feed air into the volute 211, so that the air inlet amount of the centrifugal fan 20 is effectively increased, and when the centrifugal fan 20 is used for the cooking utensil 100, the oil smoke suction capacity of the cooking utensil 100 is effectively improved.
Further, the volute 211 is provided with a first connection hole, the bottom plate 221 is provided with a second connection hole, when the volute 211 is matched with the bracket 22, the first connection hole and the second connection hole are correspondingly arranged, and the volute 211 is matched with the first connection hole and the second connection hole respectively by using fasteners (screws, rivets, or the like), so that the volute 211 is connected with the bracket 22.
Further, as shown in fig. 6, a buckle is further disposed on the volute 211, a clamping hole 2215 is further disposed on the bracket 22, when the volute 211 is matched with the bracket 22, the first connecting hole and the second connecting hole are correspondingly disposed, the buckle is clamped into the clamping hole 2215, and the bracket 22 and the volute 211 can be connected and fixed by respectively matching a fastener with the first connecting hole and the second connecting hole. The connecting strength of the bracket 22 and the volute 211 is further improved by the arrangement of the buckle and the buckle hole 2215.
It should be noted that, the number of the fasteners may be multiple, when the number of the fasteners is multiple, the multiple fasteners are arranged at intervals along the circumferential direction of the volute 211, and the number and the positions of the fastener holes 2215 both correspond to the order of magnitude positions of the fasteners, and the multiple fasteners (the multiple fastener holes 2215) and the arrangement manner of the multiple fasteners (the arrangement manner of the multiple fastener holes 2215) are arranged, so as to further improve the strength and the stability of the connection between the bracket 22 and the volute 211.
Further, the volute casing 211 can be further provided with a positioning protrusion, the bottom plate 221 is further provided with a positioning hole, when the support 22 is matched with the volute casing 211, the positioning protrusion is inserted into the positioning hole, the buckle is matched with the clamping hole 2215, after the buckle is matched with the clamping hole 2215, the first connecting hole is directly arranged corresponding to the second connecting hole, and the first connecting hole and the second connecting hole do not need to be arranged corresponding to each other again. The mounting precision of the bracket 22 and the volute 211 is ensured by the matching of the positioning protrusions and the positioning holes and the matching of the buckles and the clamping holes 2215.
Further, as shown in fig. 6 or 8, the bottom plate 221 is further provided with a fixing hole 2214, when the centrifugal fan 20 is assembled, the bracket 22 is first matched with the driving member 213, such that one end of the rotating shaft of the driving member 213 passes through the air inlet 2211 of the bracket 22, then a fastening member such as a screw passes through the fixing hole 2214 to be connected and fixed with the driving member 213, then the impeller 212 is installed on one end of the rotating shaft passing through the air inlet 2211, then the impeller 212 is disposed in the volute 211, and the first connecting hole and the second connecting hole are correspondingly disposed through the matching of the positioning protrusion and the positioning hole and the matching of the buckle and the clamping hole 2215, and finally the fastening member is respectively matched with the first connecting hole and the second connecting hole. The centrifugal fan 20 has a simple integral structure, is convenient to assemble, and can effectively improve the assembly efficiency of the centrifugal fan 20, so that the production efficiency is improved.
It should be noted that, the number of the fixing holes 2214 may be plural, and when the number of the fixing holes 2214 is plural, the plural fixing holes 2214 are arranged at intervals (around the air inlet) along the circumferential direction of the bracket 22, and the plural fixing holes 2214 are arranged in such a manner that the connecting strength and stability between the bracket 22 and the driving member 213 are further improved.
In addition, the bottom plate 221 is further provided with a wire harness hole 2216, the wire harness hole 2216 is provided with a notch, and after the driving member 213 is mounted, the wire harness of the driving member 213 is clamped into the wire harness hole 2216 through the notch, so that the wire harness is prevented from being scattered, and meanwhile, the problem that the centrifugal fan 20 fails due to loosening of the wire harness caused by vibration in the working process can be avoided.
Further, as shown in fig. 6 to 8, the connection structure is a hole group 2222 opened on the plate body portion 2221. Specifically, when the centrifugal fan 20 needs to be installed on the cooking appliance 100, the centrifugal fan 20 is correspondingly arranged at the installation position of the cooking appliance 100, the angle of the centrifugal fan 20 is adjusted, and after the adjustment of the installation angle of the centrifugal fan 20 is completed, the side plate 222 of the bracket 22 is matched with the hole group 2222 on the plate body portion 2221 corresponding to the installation position through a fastener such as a bolt, so that the bracket 22 is fixed at the installation position, and the installation of the centrifugal fan 20 is realized. The connection structure on the plate body portion 2221 is set as the hole group 2222, and the convenience in installation of the centrifugal fan 20 is improved by the cooperation of the fastening member and the hole group 2222, and the fixing strength and stability of the centrifugal fan 20 are ensured.
It should be noted that, in other embodiments of the present invention, the connecting structure is a first retaining structure (e.g., an elastic hook), and the mounting position is provided with a second retaining structure (e.g., a slot), and the bracket 22 is fixed to the mounting position by the cooperation of the first retaining structure and the second retaining structure.
When the connecting structure is a hole set 2222 provided on the plate body portion 2221, the hole set 2222 includes a plurality of mounting holes 22221, and the plurality of mounting holes 22221 are provided at intervals along an edge of the plate body portion 2221 facing away from the bottom plate 221. When the bracket 22 is fixedly connected to the mounting position of the cooking appliance 100, the fixing strength of the bracket 22 is further improved by the cooperation of the plurality of fasteners and the plurality of mounting holes 22221, so that the mounting strength and stability of the centrifugal fan 20 are effectively improved.
Further, as shown in fig. 6 or 8, a protruding structure 2223 is disposed at a position of the plate body portion 2221 corresponding to the mounting hole 22221, that is, the plate body portion 2221 at the position of the mounting hole 22221 is thickened by the protruding structure 2223, so that the strength of the mounting hole 22221 is improved, and the strength of the mounting hole 22221 is ensured to meet the mounting requirement of the centrifugal fan 20.
It should be understood that the projection structure 2223 is a circular boss structure, and the circular boss is coaxially disposed with the mounting hole 22221, so that the circumferential strength of the mounting hole 22221 is ensured to be uniform and stable, and the occurrence of a situation that the projection structure 2223 is broken due to stress concentration is avoided.
Further, as shown in fig. 6 to 8, a groove structure 2224 is provided at an edge of the plate body portion 2221 between two adjacent mounting holes 22221, that is, a material reduction process is performed on the body of the plate body portion 2221 between two mounting holes 22221 (a material reduction process is performed in a height direction of the plate body portion 2221), so that the groove structure 2224 is formed on the body of the plate body portion 2221 between two mounting holes 22221, and by providing the groove structure 2224, on one hand, the shielding of the side plate 222 on gas entering the volute 211 through the gas inlet 2211 can be reduced, the smoothness of the gas flow and the air intake amount can be improved, on the other hand, the mass of the bracket 22 can be reduced, and thus the overall mass of the centrifugal fan 20 can be reduced.
In some embodiments of the utility model, as shown in fig. 6, the inlet 2211 is provided with a rounded chamfer 2212. By arranging the round chamfer 2212 on the air inlet 2211, the influence of the air passing through the air inlet 2211 on the air flow is reduced, the smoothness of the air flow is improved, the noise of the air entering the volute 211 through the air inlet 2211 is reduced, and the air inlet amount of the volute 211 can be increased.
Further, the radius of the rounded chamfer 2212 is equal to or greater than the thickness of the bottom plate 221. The radius of the round chamfer 2212 is set to be greater than or equal to the thickness of the bottom plate 221, so that the radian of the air inlet 2211 can meet the requirement for air entering, the influence of the air inlet 2211 on the air passing is further reduced, and the smoothness of the air passing is further improved.
In some embodiments of the present invention, as shown in fig. 8, a concave arc surface 2213 surrounding the air inlet 2211 is disposed on the side of the bottom plate 221 facing the driving member 213, and the concave arc surface 2213 is concavely transitional from the side plate 222 to the air inlet 2211. Specifically, the air inlet 2211 is disposed in the middle of the bracket 22, the concave arc surface 2213 annularly disposed on the air inlet 2211 is disposed on the side of the bottom plate 221 facing the driving member 213, and the concave arc surface 2213 is concavely disposed from the side plate 222 to the air inlet 2211, so that the influence of the bottom plate 221 on the flowing process of the air flowing to the air inlet 2211 is further reduced, the resistance of the air flowing along the bracket 22 and entering the volute 211 through the air inlet 2211 is reduced, the smoothness of the air flowing process is further improved, and the performance of the centrifugal fan 20 is further improved.
The utility model also provides a cooking utensil 100, cooking utensil 100 include organism 10 and according to above centrifugal fan 20, and centrifugal fan 20 locates organism 10.
Specifically, fan body 21 of centrifugal fan 20 passes through support 22 to be installed on cooking utensil 100's mounted position, when needs are adjusted centrifugal fan 20's mounted angle, through the gesture of adjustment support 22, make centrifugal fan 20's mounted angle accord with cooking utensil 100's installation demand, again with the mounting position correspond connection structure fix the mounted position can, interval sets up a plurality of connection structures in the circumference at support 22, thereby centrifugal fan 20's multi-angle installation has been satisfied, thereby centrifugal fan 20's commonality has been improved, and then the manufacturing cost of product has been reduced.
In the present invention, the cooking appliance 100 is an OTR microwave oven (in other embodiments, the cooking appliance 100 is a micro steaming and baking all-in-one machine with a forced heat dissipation system, and the centrifugal fan 20 is used for providing power for heat dissipation airflow of the micro steaming and baking all-in-one machine), the OTR microwave oven includes a machine body 10 and an oil fume suction device provided on the machine body 10, the oil fume suction device includes an air duct assembly and the centrifugal fan 20, when in use, the OTR microwave oven is installed in a cabinet and suspended above a cooking range, and the oil fume, i.e., water vapor, generated in a cooking process of the cooking range is sucked by the oil fume suction device in the OTR microwave oven, so that an environment of a kitchen meets use requirements of users.
In addition, please refer to the prior art for the structure of other parts of the OTR microwave oven, which is not described herein again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A centrifugal fan, comprising:
a fan main body;
the fan main body is installed on the support, the support is provided with connecting structures used for being connected with cooking appliances, the number of the connecting structures is at least two, the connecting structures are arranged along the circumferential direction of the support at intervals, and the cooking appliances are selectively matched with any one of the connecting structures.
2. The centrifugal fan of claim 1, wherein the bracket comprises:
the fan main body is matched with the bottom plate;
the side plate is connected at an angle to the edge of the bottom plate, a plurality of plate body parts are arranged along the circumferential direction of the bottom plate, the number of the plate body parts is consistent with that of the connecting structures, and the connecting structures correspond to the plate body parts.
3. The centrifugal fan of claim 2, wherein the connection structure is a set of holes opened on the plate portion.
4. The centrifugal fan of claim 3, wherein the hole set includes a plurality of mounting holes spaced along an edge of the plate portion facing away from the bottom plate.
5. The centrifugal fan as claimed in claim 4, wherein the plate body is provided with a protruding structure at a position corresponding to the mounting hole;
and/or the edge of the plate body part between two adjacent mounting holes is provided with a groove structure.
6. The centrifugal fan of claim 2, wherein the fan body comprises:
a volute fitted to one side of the base plate, and an air inlet of the base plate communicating with the volute;
an impeller rotatably disposed within the volute;
the driving part is matched with the bottom plate, the driving part and the volute are located on two opposite sides of the bottom plate, and a transmission shaft of the driving part penetrates through the air inlet to be in transmission connection with the impeller.
7. The centrifugal fan of claim 6, wherein the air inlet is provided with a rounded chamfer.
8. The centrifugal fan of claim 7, wherein the radius of the rounded corner is greater than or equal to the thickness of the base plate.
9. The centrifugal fan as claimed in claim 6, wherein a concave arc surface is disposed on a side surface of the bottom plate facing the driving member, and the concave arc surface is concavely transitional from the side plate to the air inlet.
10. A cooking appliance, characterized in that it comprises:
a body;
the centrifugal fan according to any one of claims 1 to 9, wherein the centrifugal fan is disposed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122409135.1U CN216111332U (en) | 2021-09-30 | 2021-09-30 | Centrifugal fan and cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122409135.1U CN216111332U (en) | 2021-09-30 | 2021-09-30 | Centrifugal fan and cooking utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111332U true CN216111332U (en) | 2022-03-22 |
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ID=80690860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122409135.1U Active CN216111332U (en) | 2021-09-30 | 2021-09-30 | Centrifugal fan and cooking utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111332U (en) |
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2021
- 2021-09-30 CN CN202122409135.1U patent/CN216111332U/en active Active
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