Fan system and kitchen appliance

Abstract

The utility model discloses a fan system and a kitchen appliance. The fan system is used for the kitchen appliance. The fan system comprises a volute and a cleaning assembly, a containing cavity used for containing an impeller is formed in the volute, a through hole is formed in the enclosure wall, defining the containing cavity, of the volute, and the cleaning assembly is arranged outside the volute and configured to spray a cleaning medium to the containing cavity through the through hole. In the fan system, the through hole is formed in the enclosure wall of the containing cavity defined by the volute, and the cleaning assembly is configured to spray the cleaning medium to the containing cavity through the through hole, so that the cleaning assembly does not occupy the flow channel space in the volute, and the influence on the oil smoke suction effect of the fan system can be avoided to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a fan system and a kitchen appliance. Background Technology

[0002] In related technologies, a cleaning device with nozzles and spray nozzles is installed on the volute to achieve self-cleaning of the fan system. However, adding a cleaning structure inside the volute can interfere with the airflow within the volute, thus reducing the fan's smoke extraction efficiency. Utility Model Content

[0003] This utility model provides a fan system and a kitchen appliance to solve at least one of the aforementioned technical problems.

[0004] This utility model provides a fan system for kitchen appliances. The fan system includes a volute and a cleaning component. The volute has a cavity for accommodating an impeller, and the wall surrounding the cavity is provided with a through hole. The cleaning component is located outside the volute and configured to spray a cleaning medium into the cavity through the through hole.

[0005] In the aforementioned fan system, the wall surrounding the cavities of the volute is provided with through holes. The cleaning component is configured to spray cleaning media into the cavities through the through holes, thereby ensuring that the cleaning component does not occupy the flow channel space inside the volute and can, to a certain extent, avoid affecting the fume extraction effect of the fan system.

[0006] In some embodiments, the cleaning assembly includes a nozzle with a connecting tube formed along its circumferential direction, the nozzle having spray holes, and the connecting tube communicating with the through hole through the spray holes.

[0007] In some embodiments, the nozzle includes an ejection surface with nozzle holes, and the ejection surface is in contact with the outer wall of the volute.

[0008] In some embodiments, the ejection surface has a plurality of nozzles arranged along the length of the nozzle, and the number of through holes corresponds to the number of nozzles.

[0009] In some embodiments, the outer wall of the volute is formed with a fixing portion, and the nozzle is engaged with the fixing portion.

[0010] In some embodiments, the connecting pipe is located at the center of the nozzle along its length, or the connecting pipe is offset from the center of the nozzle along its length.

[0011] In some embodiments, the plurality of nozzles have the same diameter.

[0012] In some embodiments, the cleaning assembly includes a delivery tube and a connector, the connector being fixedly connected to the delivery tube so that the delivery tube communicates with the nozzle.

[0013] In some embodiments, the cleaning assembly includes a tee tube with a first inlet, a second inlet, and an outlet, the outlet communicating with the spray nozzle, and the first inlet and the second inlet respectively connected to a delivery tube.

[0014] The present invention provides a kitchen appliance including a fan system according to any of the above embodiments.

[0015] In the aforementioned kitchen appliances, the wall surrounding the cavity formed by the volute is provided with a through hole, and the cleaning component is configured to spray the cleaning medium into the cavity through the through hole, so that the cleaning component does not occupy the flow channel space inside the volute, which can avoid affecting the oil fume extraction effect of the fan system to a certain extent.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 and Figure 2 This is a schematic diagram of the structure of the fan system according to an embodiment of the present invention;

[0019] Figure 3 This is an exploded view of the fan system according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the nozzle structure according to an embodiment of the present invention.

[0021] Explanation of key component symbols:

[0022] Cleaning component 10, volute 12, nozzle 14, accommodating cavity 16, through hole 18, connecting pipe 20, spray surface 22, fixing part 24, fixing through hole 26, connector 28, spray hole 30, delivery pipe 34, fan system 100. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] Range hoods are essential kitchen appliances. During use, the fan system of a range hood comes into contact with cooking fumes, causing the inner cavity to become filled with grease. In particular, the accumulating grime on the impeller of the fan system can disrupt the dynamic balance of the impeller, increasing the load and thus reducing the range hood's smoke extraction performance and increasing noise.

[0029] In related technologies, a cleaning device with nozzles and spray nozzles is installed on the volute to achieve self-cleaning of the fan system. However, adding a cleaning structure inside the volute can interfere with the airflow within the volute, thus reducing the fan's smoke extraction efficiency.

[0030] Please see Figures 1 to 3 This utility model provides a fan system 100 for kitchen appliances. The fan system 100 includes a volute 12 and a cleaning component 10. The volute 12 forms a receiving cavity 16 for accommodating an impeller. The wall surrounding the receiving cavity 16 of the volute 12 is provided with a through hole 18. The cleaning component 10 is disposed outside the volute 12 and configured to spray a cleaning medium into the receiving cavity 16 through the through hole 18.

[0031] In the aforementioned fan system 100, a through hole 18 is provided in the wall surrounding the accommodating cavity 16 formed by the volute 12. The cleaning component 10 is configured to spray cleaning medium into the accommodating cavity 16 through the through hole 18, so that the cleaning component 10 does not occupy the flow channel space inside the volute 12, which can avoid affecting the oil fume extraction effect of the fan system 100 to a certain extent.

[0032] Specifically, the fan system 100 includes a fan and a cleaning component 10. The fan includes a volute 12 and an impeller, with the volute 12 forming a receiving cavity 16. The impeller is installed inside the receiving cavity 16. When the fan is working, the impeller rotates within the receiving cavity 16, generating a strong airflow and creating a negative pressure zone. Due to the pressure difference, the fumes are drawn into the receiving cavity 16 and discharged outdoors through the exhaust port.

[0033] During this process, the impeller frequently comes into contact with oil fumes, which causes the blades and the interior of the cavity 16 formed by the volute 12 to be filled with oil.

[0034] In related technologies, in order to achieve precise spraying of cleaning medium onto the inner wall of the volute 12, the nozzle 14 needs to be inserted into the receiving cavity 16 of the volute 12 to clean the impeller and the inner wall of the receiving cavity 16. Therefore, the nozzle 14 will affect the airflow in the receiving cavity 16.

[0035] In the embodiment provided by this utility model, a through hole 18 is provided on the wall surrounding the cavity 16 formed by the volute 12, and the cleaning component 10 is provided on the outer wall of the volute 12. The cleaning component 10 sprays cleaning medium onto the inner wall of the volute 12 and the impeller through the through hole 18 to achieve cleaning of the fan.

[0036] The cleaning component 10, located outside the volute 12, sprays the cleaning medium onto the inner wall of the accommodating cavity 16 and the impeller through the through hole 18. This allows for cleaning of the accommodating cavity 16 without affecting its internal structure, avoiding the occupation of flow channel space and thus not affecting the fume extraction effect to a certain extent.

[0037] In one embodiment, the cleaning component 10 includes a delivery pipe 34, one end of which is connected to a through hole 18 and the other end is connected to a cleaning medium source, so that the cleaning medium can be delivered to the volute 12 through the delivery pipe 34 to clean the inner wall of the volute 12 and the impeller.

[0038] In one embodiment, the cleaning component 10 includes a liquid reservoir for storing cleaning media. The liquid reservoir is installed on the outer side wall of the volute 12 and has an opening that can be switched to open or closed. The opening communicates with a through hole 18, so that the cleaning media in the liquid reservoir can flow into the volute 12 through the open opening and through the through hole 18 to clean the inner wall of the volute 12 and the impeller.

[0039] Optionally, the cleaning medium can be in liquid, gaseous or solid form, such as fluid, steam or foam, etc. The types of cleaning media include, but are not limited to, water, various cleaning agents, etc.

[0040] Please see Figure 1 and Figure 3 In some embodiments, the cleaning component 10 includes a nozzle 14, a connecting tube 20 is formed along the circumferential direction of the nozzle 14, and a spray hole 30 is opened in the nozzle 14. The connecting tube 20 communicates with the through hole 18 through the spray hole 30.

[0041] In this way, the cleaning medium can be sprayed into the volute 12 through the nozzle 14.

[0042] Specifically, the nozzle 14 has a connecting pipe 20 formed along its circumferential direction. The connecting pipe 20 is connected to the cleaning medium source, and the cleaning medium is sprayed into the volute 12 through the nozzle 14. By controlling factors such as fluid flow rate, nozzle shape, and pressure, the nozzle 14 can achieve uniform distribution of the cleaning medium during spraying, thus achieving a better cleaning effect.

[0043] The nozzle 14 can be positioned anywhere on the outer wall of the volute 12. In one embodiment, the nozzle 14 is strip-shaped, and optionally, the length direction of the nozzle 14 is parallel to the rotation axis of the fan, thus allowing the cleaning medium sprayed from the nozzle 14 to better contact the impeller.

[0044] Optionally, the length direction of the nozzle 14 is set perpendicular to the rotation axis of the blower, so that more cleaning medium sprayed from the nozzle 14 can come into contact with more impellers.

[0045] Optionally, the length direction of the nozzle 14 has a certain angle with the rotation axis of the fan. This allows the cleaning medium sprayed by the nozzle 14 to cover a larger area of ​​the impeller, while also allowing the nozzle 14 to spray more cleaning medium and contact more impellers.

[0046] Optionally, the number of nozzles 30 can be one or more, and the number of through holes 18 can also be one or more. One or more nozzles 30 are provided on the nozzle 14, and one or more through holes 18 are correspondingly provided on the volute 12. The number of nozzles 30 and through holes 18 corresponds, and the diameter of the through holes 18 can be set according to the diameter of the nozzles 30. In this way, the diameter of the through holes 18 is small, and the nozzle 14 is set at the position of the through holes 18, which can make the sealing effect at this point better and have little impact on the airflow direction in the accommodating cavity 16.

[0047] Optionally, the nozzle 14 may have one or more spray holes 30, and the volute 12 may have a through hole 18 with a larger diameter, so that one or more spray holes 30 can spray the cleaning medium into the volute 12 through the through hole 18. In this way, the relative position between the spray holes 30 and the through hole 18 can be better determined, which can reduce the installation accuracy requirements and make the installation simpler.

[0048] Please see Figure 1 and Figure 3 In some embodiments, a fixing part 24 is formed on the outer side wall of the volute 12, and the nozzle 14 is engaged in the fixing part 24.

[0049] This makes it easier to install the nozzle 14.

[0050] Specifically, the fixing part 24 is used to fix and position the nozzle 14. When the nozzle 14 is installed on the outer side wall of the volute 12, the fixing part 24 can quickly determine the installation position, thus simplifying the installation steps of the nozzle 14 and facilitating its installation.

[0051] The nozzle 14 is strip-shaped, and the fixing part 24 has a fixing through hole 26. The nozzle 14 passes through the fixing through hole 26 to be fixed to the outer side wall of the volute 12. The number of fixing parts 24 can be one or more.

[0052] When there is only one fixing part 24, the fixing part 24 can be provided on one side of the nozzle 14 along the length direction, which facilitates the installation of the nozzle 14.

[0053] When there are two or more fixing parts 24, the fixing parts 24 can be spaced apart along the length direction of the nozzle 14, so as to fix the nozzle 14 at multiple positions and ensure the reliability of the fixing.

[0054] In one implementation, such as Figure 3 As shown, there are two fixing parts 24. The axial direction of the fixing through hole 26 formed by the fixing part 24 is parallel to the length direction of the nozzle 14. The two fixing parts 24 are arranged at intervals along the length direction of the nozzle 14. The nozzle 14 passes through the fixing through hole 26 formed by the fixing part 24 between the two fixing parts 24. In this way, the fixing part 24 can accurately position the nozzle 14 and fix it reliably.

[0055] Meanwhile, the side of the nozzle 14 that contacts the volute 12 can be fixed by means of adhesive bonding, which can ensure the reliability of the nozzle 14 installed on the outer wall of the volute 12, and achieve a sealed connection between the nozzle 14 and the outer wall of the volute 12 by adhesive bonding, so as to prevent the nozzle 14 from shaking relative to the outer wall of the volute 12 and causing leakage of cleaning medium, and to prevent oil fumes that may exist in the accommodating cavity 16 from leaking through the through hole 18.

[0056] In one embodiment, the fixing part 24 includes a fixing strap that surrounds at least a portion of the fixing through hole 26, the shape of which is adapted to the shape of the peripheral surface of the nozzle 14. This ensures a secure and reliable installation of the nozzle 14, while also facilitating installation. The fixing strap adheres to at least a portion of the peripheral surface of the nozzle 14 and surrounds and secures it, thereby making the fixing strap's fixation of the nozzle 14 more secure and reliable, and providing good sealing to prevent media leakage during the cleaning process.

[0057] Optionally, the fixing strap and the volute 12 are integrally molded, which reduces processing steps and allows for precise positioning of the fixing strap. Furthermore, the integral molding process eliminates any connection marks between the volute 12 and the fixing strap, resulting in better quality, a more secure and reliable fixation of the nozzle 14, and a longer service life.

[0058] Optionally, the fixing strap can be processed separately and installed to the outer wall of the volute 12 using welding, gluing, fastener connection, or other methods. In this way, the installation position of the fixing strap and the nozzle 14 can be selected according to the different models and sizes of the volute 12.

[0059] Please see Figure 3 In some embodiments, the nozzle 14 includes a spray surface 22, which is provided with spray holes 30, and the spray surface 22 is in contact with the outer wall of the volute 12.

[0060] In this way, the connection between the nozzle 14 and the volute 12 is more stable and reliable, preventing the nozzle 14 from moving on the outer wall of the volute 12.

[0061] Specifically, the nozzle 14 has an ejection surface 22 that contacts the outer wall of the volute 12, and the nozzle 30 is disposed on the ejection surface 22 and contacts the outer wall of the volute 12 through the ejection surface 22, so that the cleaning medium flowing out of the nozzle 30 can enter the receiving cavity 16 through the through hole 18.

[0062] Because the cleaning medium flowing inside the nozzle 14 has a certain pressure, the nozzle 14 may move under pressure when the cleaning assembly 10 is working. The spray surface 22 of the nozzle 14 is in contact with the outer wall of the volute 12, that is, the curvature of the spray surface 22 of the nozzle 14 matches the curvature of the outer wall of the volute 12, forming a corresponding contour structure. This allows the nozzle 14 to be more stably fixed to the outer wall of the volute 12, preventing the cleaning medium from leaking between the spray surface 22 and the outer wall of the volute 12 due to the movement of the nozzle 14 on the outer wall of the volute 12.

[0063] Meanwhile, after the nozzle 14 is installed on the outer wall of the volute 12, the nozzle 14 and the outer wall of the volute 12 can be sealed and fixed by bonding the spray surface 22 to the outer wall of the volute 12. The contact between the spray surface 22 and the outer wall of the volute 12 can make the adhesive evenly distributed and the bonding stable and reliable.

[0064] Please see Figure 4 In some embodiments, the spraying surface 22 has a plurality of spray holes 30, which are arranged along the length of the nozzle 14, and the number of through holes 18 corresponds to the number of spray holes 30.

[0065] This allows the cleaning medium sprayed from nozzle 14 to cover a wider area.

[0066] Specifically, multiple nozzles 30 are provided on the spray surface 22, thereby expanding the range of the cleaning medium sprayed by the nozzle 14 and better covering the inner surface of the impeller and the cavity 16 formed by the volute 12.

[0067] Optionally, the multiple nozzles 30 can be arranged in one or more rows at equal intervals along the length of the nozzle 14. Optionally, the distance between the multiple nozzles 30 can be arranged in one or more rows with increasing or decreasing distances along the length of the nozzle 14. Optionally, the multiple nozzles can be arranged radially from the center to the edge along the length of the nozzle 14.

[0068] In some embodiments, the connecting pipe 20 is located at the center of the nozzle 14 along its length, or the connecting pipe 20 is offset from the center of the nozzle 14 along its length.

[0069] In this way, the position of the connecting pipe 20 can be set according to the layout of the fan.

[0070] Specifically, the cleaning medium enters the nozzle 14 through the connecting pipe 20 and flows out through the nozzle 30. When multiple nozzles 30 are opened on the spray surface 22, the position of the connecting pipe 20 on the nozzle 14 will affect the flow rate and velocity of the cleaning medium at each nozzle 30.

[0071] With the connecting pipe 20 located at the center of the nozzle 14 along its length, the pressure distribution of the cleaning medium flowing through the connecting pipe 20 to the multiple nozzles 30 is symmetrical along the connecting pipe 20, thereby making the flow rate and velocity of the cleaning medium flowing out of each nozzle 30 more uniform.

[0072] The connecting pipe 20 is offset from the center along the length of the nozzle 14. Specifically, the connecting pipe 20 can be located at any position on the circumference of the nozzle, or the connecting pipe 20 can be offset along the length of the nozzle 14. In this way, the connection layout between the nozzle 14 and the cleaning medium circle is more flexible, making the nozzle 14 suitable for fans of different models and sizes.

[0073] In some embodiments, the multiple nozzles 30 have the same diameter.

[0074] In this way, the flow rate and velocity of the cleaning medium sprayed from the nozzle 14 can be made more uniform.

[0075] Specifically, the diameter of the nozzle 30 affects the flow rate and velocity of the cleaning medium passing through the nozzle 30. If multiple nozzles 30 have the same diameter, the cleaning medium can be sprayed more evenly, which is beneficial for thoroughly cleaning the inner surface of the cavity 16 formed by the cover impeller and the volute 12.

[0076] In practical applications, the diameter of the nozzle 30 can be determined based on the type of cleaning medium, the size of the nozzle 14, and the size of the impeller.

[0077] Please seeFigure 3 In some embodiments, the cleaning assembly 10 includes a delivery pipe 34 and a connector 28, the connector 28 being fixedly connected to the connecting pipe 20 and the delivery pipe 34 so that the delivery pipe 34 is in communication with the nozzle 30.

[0078] Thus, the cleaning medium can be delivered to the nozzle 14 through the delivery pipe 34.

[0079] Specifically, one end of the delivery pipe 34 is connected to the connecting pipe 20 of the nozzle 14, and the other end is connected to the cleaning medium source. By using the delivery pipe 34 for connection, the position of the cleaning medium source can be flexibly arranged by adjusting the position of the delivery pipe 34, so as to arrange the position of each component in the cleaning assembly 10 according to the layout of the fan system 100, thereby minimizing the impact of the cleaning assembly 10 on the functional structure of the fan system 100.

[0080] The connector 28 is used to connect the delivery pipe 34 and the connecting pipe 20, which makes the connection between the delivery pipe 34 and the connecting pipe 20 more reliable, ensures the sealing of the connection, and prevents leakage of the cleaning medium.

[0081] Optionally, the connector 28 may include, but is not limited to, quick couplings, flanges, tees or crosses, which can enable a stable and reliable connection between the connecting pipe 20 and the delivery pipe 34.

[0082] Understandably, the delivery pipe 34 may also include a pump and other connection structures for delivery and pressurization to regulate the flow rate and velocity of the cleaning medium.

[0083] In some embodiments, the cleaning component 10 includes a three-way tube (not shown) with a first inlet, a second inlet, and an outlet, the outlet being connected to a spray nozzle 30, and the first and second inlets being connected to a delivery pipe 34.

[0084] In this way, different cleaning media can be sprayed into the accommodating cavity 16.

[0085] Specifically, a three-way pipe is installed at the connecting pipe 20 of the nozzle 14. The outlet of the three-way pipe is connected to the connecting pipe 20. The first inlet and the second inlet are respectively connected to a delivery pipe 34. The two delivery pipes 34 can be connected to different cleaning media sources, so that two cleaning media can be sprayed into the accommodating cavity 16 at the same time, which can improve the cleaning effect of the cleaning component 10.

[0086] The two delivery pipes 34 can operate simultaneously to allow the nozzle 14 to output a mixed cleaning medium, or the two delivery pipes 34 can operate separately to allow the nozzle 14 to output different cleaning media.

[0087] In one embodiment, when cleaning the volute 12 and impeller, the cleaning assembly can first spray steam, hot water, or a mixture of steam and hot water through the first inlet to initially soften the oil stains. Then, the output of the first inlet is stopped, and a detergent, which can be cold or hot, is sprayed through the second inlet to dissolve the oil stains on the surface of the object being cleaned. Then, the output of the second inlet is stopped, and the first inlet is sprayed again with steam, hot water, or a mixture for rinsing.

[0088] During the cleaning process, the impeller can rotate continuously or intermittently to cooperate with the cleaning. Finally, all spraying is stopped, and the impeller is allowed to rotate continuously for a period of time to allow the volute 12 and the inside of the impeller to air dry, thus completing the cleaning.

[0089] In one embodiment, steam (or hot water or a mixture of steam and water) and detergent are simultaneously injected into the first and second inlets. The impeller rotates continuously or intermittently, and finally rotates to air dry, thus completing the cleaning process. By adjusting the flow rates of the first and second inlets, any ratio of steam (or hot water or a mixture of steam and water) to detergent (cold or hot) can be achieved. For example, in light oil stain scenarios, the detergent ratio is slightly smaller; in heavy oil stain scenarios, the detergent ratio is slightly larger, thereby enabling the cleaning component 10 to handle different oil stain scenarios.

[0090] This can be achieved by detecting the impeller's weight, rotational speed, or by using sensors to detect the amount of oil on the impeller.

[0091] In one embodiment, a medium can be supplied through either the first or the second inlet to clean the volute 12 and the impeller. The impeller rotates continuously or intermittently, and finally the impeller rotates to dry, thus completing the cleaning process.

[0092] In summary, the cleaning component 10 is located on the outside of the volute 12. By providing a through hole 18 on the outer wall of the volute 12, the cleaning component 10 sprays the cleaning medium into the accommodating cavity 16 through the through hole 18. In this way, the cleaning component 10 can avoid occupying the flow channel space inside the volute 12.

[0093] By providing a fixing part 24 on the outer wall of the volute 12, the nozzle 14 can be easily installed. Furthermore, the fixing part 24 has a fixing through hole 26, which is designed to conform to the circumferential surface of the nozzle 14, making the fixing part 24 more secure and reliable in fixing the nozzle 14. Simultaneously, the spraying surface 22 of the nozzle 14 is designed to conform to the circumferential surface of the cavity 16 formed by the volute 12, ensuring that the curvature of the spraying surface 22 of the nozzle 14 and the circumferential surface of the cavity 16 are consistent. When the nozzle 14 is installed on the outer wall of the volute 12, it can fit snugly against the outer wall of the volute 12, thus facilitating the installation connection between the nozzle 14 and the outer wall of the volute 12 and ensuring the sealing between them, preventing leakage of airflow or cleaning medium within the cavity 16.

[0094] The present invention provides a kitchen appliance including a fan system 100 according to any of the above embodiments.

[0095] In the aforementioned kitchen appliance, a through hole 18 is provided in the wall surrounding the cavity 16 formed by the volute 12. The cleaning component 10 is configured to spray cleaning medium into the cavity 16 through the through hole 18, so that the cleaning component 10 does not occupy the flow channel space inside the volute 12, which can avoid affecting the oil fume extraction effect of the fan system 100 to a certain extent.

[0096] Specifically, kitchen appliances include, but are not limited to, range hoods, integrated cooktops, or other kitchen appliances with a fan system 100.

[0097] Optionally, the conveying device may also include a steam generator, a heating element, a foaming machine, etc., which can enable the nozzle 14 to output cleaning media in the form of steam, foam, etc., and at different temperatures.

[0098] It should be noted that the above explanation of the implementation method and beneficial effects of the fan system 100 also applies to kitchen appliances according to the embodiments of this utility model. To avoid redundancy, it will not be elaborated in detail here.

[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0100] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fan system for kitchen appliances, characterized in that, The fan system includes a volute and a cleaning component. The volute forms a cavity for accommodating the impeller. The wall surrounding the cavity of the volute has a through hole. The cleaning component is located outside the volute and configured to spray a cleaning medium into the cavity through the through hole.

2. The fan system according to claim 1, characterized in that, The cleaning component includes a nozzle, a connecting tube formed along the circumferential direction of the nozzle, a spray hole in the nozzle, and the connecting tube communicating with the through hole through the spray hole.

3. The fan system according to claim 2, characterized in that, The outer wall of the volute has a fixing part, and the nozzle is fixed in the fixing part.

4. The fan system according to claim 2, characterized in that, The nozzle includes a spray surface with spray holes, and the spray surface is in contact with the outer wall of the volute.

5. The fan system according to claim 4, characterized in that, The ejection surface has a plurality of nozzles, which are arranged along the length of the nozzle head, and the number of through holes corresponds to the number of nozzles.

6. The fan system according to claim 5, characterized in that, The connecting pipe is located at the center of the nozzle along its length, or the connecting pipe is offset from the center of the nozzle along its length.

7. The fan system according to claim 5, characterized in that, The diameters of the multiple nozzles are the same.

8. The fan system according to claim 5, characterized in that, The cleaning assembly includes a delivery pipe and a connector, the connector being fixedly connected to the delivery pipe so that the delivery pipe is in communication with the spray nozzle.

9. The fan system according to claim 8, characterized in that, The cleaning component includes a three-way pipe, which includes a first inlet, a second inlet, and an outlet. The outlet is connected to the spray nozzle, and the first inlet and the second inlet are respectively connected to a delivery pipe.

10. A kitchen appliance, characterized in that, Includes the wind turbine system as described in any one of claims 1-9.

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