Kitchen appliance

Abstract

The application discloses a kitchen appliance, which comprises a shell and a fan assembly. The kitchen appliance further comprises a cleaning assembly, which comprises a spray pipe, one end of the spray pipe being connected with a driving member of the fan assembly, the other end of the spray pipe being connected with a cleaning medium source, the spray pipe being provided with a spray hole, and the kitchen appliance being configured to control the cleaning medium source to supply cleaning medium to the spray pipe and / or control the driving member to drive the spray pipe to rotate. In the kitchen appliance, the spray pipe is provided with a spray hole, and when the cleaning medium is supplied to the spray pipe and the driving member drives the spray pipe to rotate, the cleaning medium can be uniformly sprayed to the inner side wall of the shell and the fan assembly through the rotating spray pipe, so that a larger cleaning range is formed, and the cleaning effect on the range hood is improved.

Description

Technical Field

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

[0002] In related technologies, in order to achieve self-cleaning of the range hood, it is necessary to install a nozzle, a connecting pipe for the cleaning agent, and a fixing device for the nozzle inside the range hood. However, this results in a limited cleaning range and a small cleaning coverage area, leading to poor cleaning effect on the range hood. Summary of the Invention

[0003] The present invention provides a kitchen appliance to solve at least one of the above-mentioned technical problems.

[0004] An embodiment of the present invention provides a kitchen appliance, which includes a housing and a fan assembly.

[0005] The kitchen appliance also includes a cleaning component, which includes a spray nozzle. One end of the spray nozzle is connected to the drive unit of the fan assembly, and the other end is connected to a cleaning medium source. The spray nozzle has spray holes. The kitchen appliance is configured to control the cleaning medium source to supply cleaning medium to the spray nozzle, and / or to control the drive unit to drive the spray nozzle to rotate.

[0006] In the aforementioned kitchen appliances, the spray nozzle has spray holes. When the cleaning medium is introduced into the spray nozzle and the drive component drives the spray nozzle to rotate, the cleaning medium can be evenly sprayed onto the inner wall of the housing and the fan assembly through the rotating spray nozzle, thereby forming a larger cleaning range and improving the cleaning effect on the range hood.

[0007] In some embodiments, the rotation axis of the fan assembly coincides with the rotation axis of the nozzle.

[0008] In some embodiments, the axial direction of the nozzle is inclined relative to the direction perpendicular to the axial direction of the nozzle toward the fan assembly, or;

[0009] The axial direction of the nozzle is inclined away from the fan assembly relative to the axial direction perpendicular to the nozzle.

[0010] In some embodiments, the axial direction of the nozzle is perpendicular to the axial direction of the nozzle pipe.

[0011] In some embodiments, the cleaning assembly includes a delivery pipe and a delivery pump, the delivery pipe connecting the delivery pump and the nozzle, and the delivery pump connecting the cleaning medium source to enable communication between the nozzle and the cleaning medium source.

[0012] In some embodiments, the cleaning assembly includes a heating element for heating the cleaning medium flowing through the delivery pipe.

[0013] In some embodiments, the heating element includes a heating film that covers the outer surface of the delivery pipe.

[0014] In some embodiments, the cleaning assembly includes a switching element mounted on the housing, the switching element being configured to connect and disconnect the delivery pipe and the nozzle.

[0015] In some embodiments, the switching element includes a fixed part and a movable part, the movable part being movably connected to the fixed part. The movable part is provided with a medium flow channel, an inlet, and an outlet. The inlet, the outlet, and the medium flow channel are connected. The inlet is connected to the delivery pipe, and the outlet is connected to or disconnected from the nozzle under the action of the movable part.

[0016] In some embodiments, the cleaning component includes a sealing ring fitted over the end of the nozzle where it connects to the outlet.

[0017] In some embodiments, the fan assembly includes an impeller, a transmission component, and an impeller lock nut. The transmission component connects the impeller and the output shaft of the drive component. The impeller lock nut connects to the output shaft of the drive component and abuts against the transmission component to fix the transmission component. One end of the nozzle is fixedly connected to the impeller lock nut so that the nozzle rotates synchronously with the impeller.

[0018] Additional aspects and advantages of the 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

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a kitchen appliance according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of a kitchen appliance according to an embodiment of the present invention;

[0022] Figure 3 This is a front view of a kitchen appliance according to an embodiment of the present invention;

[0023] Figure 4 This is a side view of a kitchen appliance according to an embodiment of the present invention;

[0024] Figure 5This is a cross-sectional view of a kitchen appliance according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the cleaning component according to an embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional view of the cleaning component according to an embodiment of the present invention;

[0027] Figure 8 This is a partial structural schematic diagram of the cleaning component according to an embodiment of the present invention;

[0028] Figure 9 This is a cross-sectional view of a portion of the structure of the cleaning component according to an embodiment of the present invention.

[0029] Explanation of key component symbols:

[0030] Housing 10, fan assembly 12, cleaning assembly 14, nozzle 16, drive unit 18, nozzle 20, delivery pipe 22, delivery pump 24, heating element 26, power terminal 28, switching element 30, fixed part 32, movable part 34, media channel 36.

[0031] Inlet: 38; Outlet: 40; Sealing ring: 42; Impeller: 44; Transmission component: 46; Impeller lock nut: 48; Output shaft: 50; Baffle plate: 52.

[0032] 54 baffles, 56 oil collection boxes, 100 kitchen appliances. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which 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 the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, 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 orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and 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 the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this invention, 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 invention can be understood according to the specific circumstances.

[0036] 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.

[0037] This disclosure provides many different embodiments or examples for implementing various structures of the 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 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, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0038] In related technologies, in order to achieve self-cleaning of the range hood, it is necessary to install a nozzle, a connecting pipe for the cleaning agent, and a fixing device for the nozzle inside the range hood. However, this results in a limited cleaning range and a small cleaning coverage area, leading to poor cleaning effect on the range hood.

[0039] Please see Figure 1 and Figure 2 The present invention provides a kitchen appliance 100, which includes a housing 10 and a fan assembly 12.

[0040] The kitchen appliance 100 also includes a cleaning component 14, which includes a nozzle 16. One end of the nozzle 16 is connected to the drive element 18 of the fan assembly 12, and the other end is connected to a cleaning medium source. The nozzle 16 has nozzle holes 20. The kitchen appliance 100 is configured to control the cleaning medium source to supply cleaning medium to the nozzle 16, and / or control the drive element 18 to drive the nozzle 16 to rotate.

[0041] In the aforementioned kitchen appliance 100, the spray pipe 16 has spray holes 20. When the cleaning medium is introduced into the spray pipe 16 and the driving component 18 drives the spray pipe 16 to rotate, the cleaning medium can be evenly sprayed onto the inner wall of the housing 10 and the fan assembly 12 through the rotating spray pipe 16, thereby forming a larger cleaning range and improving the cleaning effect on the range hood.

[0042] Specifically, the kitchen appliance 100 includes a housing 10 and a fan assembly 12. The fan assembly 12 includes an impeller 44 and a drive component 18. The drive component 18 drives the impeller 44 to rotate, thereby causing the impeller 44 to rotate within the housing 10. The rotation of the impeller 44 generates a strong airflow, forming a negative pressure zone. Due to the pressure difference, the fumes are drawn in and discharged outdoors through the exhaust vent.

[0043] The drive unit 18 connects to the spray pipe 16 and drives the spray pipe 16 to rotate. The spray pipe 16 has spray holes 20. When cleaning medium is introduced into the spray pipe 16, the cleaning medium can be sprayed through the spray holes 20 onto the inner wall of the housing 10 and the fan assembly 12. When the spray pipe 16 rotates, the orientation of the spray holes 20 can be changed, thereby increasing the spray range of the cleaning medium and improving the cleaning effect on the range hood.

[0044] The kitchen appliance 100 has two operating modes: a fume extraction mode and a cleaning mode. In fume extraction mode, the drive unit 18 drives the impeller 44 to rotate, extracting fumes. At this time, the spray pipe 16 rotates simultaneously with the impeller 44, but no cleaning medium is introduced into the spray pipe 16, thus ensuring the normal operation of the kitchen appliance 100 is not affected. In cleaning mode, the cleaning medium source introduces cleaning medium into the spray pipe 16, and the cleaning medium is sprayed from the spray holes 20 onto the inner wall of the housing 10 and the fan assembly 12.

[0045] In cleaning mode, there can be multiple sub-modes. For example, in the first sub-mode, the drive unit 18 is not working, allowing the nozzle 16 to spray the cleaning medium while stationary. This allows the cleaning medium to continuously spray and clean areas with heavy grease buildup. In the second sub-mode, the drive unit 18 is working, driving the nozzle 16 to rotate and causing the spray holes 20 on the nozzle 16 to change their spray direction, thereby creating a larger cleaning range and improving the cleaning effect on the range hood.

[0046] The nozzle 16 has nozzles 20, and the number of nozzles 20 can be one or more. When there are multiple nozzles 20, the spacing between the multiple nozzles 20 can be the same, or the spacing between the multiple nozzles 20 can be different.

[0047] Furthermore, when there are multiple nozzles 20, the diameters of the multiple nozzles 20 can be the same, or the diameters of the multiple nozzles 20 can be different. It is understood that the spacing and diameter of the nozzles 20 affect the spray position and spray pressure of the cleaning medium. Based on practical experience, the position of the nozzles 20 can be aligned with the areas inside the housing 10 where there is a higher concentration of oil stains, thus achieving a better cleaning effect.

[0048] In one embodiment, the drive element 18 includes a motor. The output shaft 50 of the motor is connected to the nozzle 16 to drive the nozzle 16 to rotate.

[0049] 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, detergent, degreaser and other cleaning agents.

[0050] Kitchen appliances 100 include, but are not limited to, range hoods, integrated cooktops, or other kitchen appliances 100 with fan systems.

[0051] Please see Figure 1 and Figure 5 In some embodiments, the rotation axis H of the fan assembly 12 coincides with the rotation axis of the nozzle 16.

[0052] This facilitates the connection between the nozzle 16 and the pipeline of the cleaning medium.

[0053] Specifically, the nozzle 16 is connected to the output shaft 50 of the drive component 18 of the blower assembly 12, and the rotation axis H of the blower assembly 12 coincides with the rotation axis of the nozzle 16. Thus, the nozzle 16 rotates about the rotation axis H of the blower assembly 12, thereby keeping the relative position of the nozzle 16 within the housing 10 unchanged, while changing the ejection direction of the nozzle 20. This changes the ejection direction of the cleaning medium, thereby achieving dynamic cleaning of the cleaning component 14.

[0054] Meanwhile, since the relative position of the nozzle 16 within the housing 10 remains unchanged, it is easy to connect the nozzle 16 to the cleaning medium source, thus eliminating the need for complex piping and simplifying design and installation.

[0055] In some embodiments, the axial direction of the nozzle 20 is inclined relative to the axial direction of the vertical nozzle 16 toward the fan assembly 12, or;

[0056] The axial direction of the nozzle 20 is inclined away from the fan assembly 12 relative to the axial direction of the vertical nozzle 16.

[0057] This increases the spray range of the cleaning medium.

[0058] Specifically, such as Figure 9 As shown, the axial direction of the nozzle 20 is inclined relative to the axial direction of the vertical nozzle 16, which can change the spray direction of the cleaning medium and thus expand the spray range of the cleaning medium.

[0059] The axis of the nozzle 20 is tilted toward the fan assembly 12 relative to the axis of the vertical nozzle 16, so that more cleaning medium can be sprayed toward one side of the impeller 44, thus enhancing the cleaning of the impeller 44.

[0060] Optionally, the nozzle 16 may have multiple nozzle holes 20, each with the same orientation or with different orientations. Alternatively, the nozzle 16 may have multiple rows of nozzle holes 20, each with a different orientation. For example, the nozzle 16 may have two rows of nozzle holes 20, with one row of nozzle holes 20 inclined relative to the vertical axis of the nozzle 16 toward the fan assembly 12, and the other row of nozzle holes 20 inclined relative to the vertical axis of the nozzle 16 toward a direction away from the fan assembly 12.

[0061] Please see Figure 7 In some embodiments, the axial direction of the nozzle 20 is perpendicular to the axial direction of the nozzle 16.

[0062] Thus, the short orifice of nozzle 20 facilitates the ejection of the cleaning medium.

[0063] Specifically, when the axis of the nozzle 20 is perpendicular to the axis of the nozzle 16, the channel of the nozzle 20 is shorter, and the sprayed cleaning medium can be more evenly distributed in the circumferential direction of the nozzle 16, thereby ensuring that the cleaning medium flows evenly at the nozzle 20, which is conducive to the spraying of the cleaning medium.

[0064] Optionally, the nozzle 16 is provided with a plurality of nozzle holes 20, each nozzle hole 20 may have the same orientation, or each nozzle hole 20 may have a different orientation. For example, the axial direction of each nozzle hole 20 may be perpendicular to the axial direction of the nozzle 16. Alternatively, the axial direction of some nozzle holes 20 may be perpendicular to the axial direction of the nozzle 16, and the axial direction of some nozzle holes 20 may be inclined relative to the axial direction of the nozzle 16.

[0065] Optionally, the nozzle 16 is provided with multiple rows of nozzle holes 20, each row of nozzle holes 20 having a different orientation. For example, the nozzle 16 is provided with two rows of nozzle holes 20, one row of nozzle holes 20 having its axial direction perpendicular to the axial direction of the nozzle 16, and the other row of nozzle holes 20 having its axial direction inclined relative to the axial direction perpendicular to the nozzle 16, wherein the angle of inclination can be arbitrary.

[0066] Please see Figures 5 to 7 In some embodiments, the cleaning assembly 14 includes a delivery pipe 22 and a delivery pump 24, the delivery pipe 22 connecting the delivery pump 24 and the nozzle 16, and the delivery pump 24 connecting to a cleaning medium source so that the nozzle 16 is in communication with the cleaning medium source.

[0067] In this way, cleaning medium can be introduced into the nozzle 16.

[0068] Specifically, the delivery pump 24 is connected to the cleaning medium source, and the delivery pipe 22 connects the delivery pump 24 and the nozzle 16. When the delivery pump 24 is working, the cleaning medium flows to the delivery pipe 22 and then to the nozzle 16, thus forming a delivery path for the cleaning medium.

[0069] In one embodiment, the delivery pump 24 is fixed to the outer surface above the housing 10, and the delivery pipe 22 extends into the housing 10 through an opening and connects to the nozzle 16, thereby enabling the delivery of cleaning medium to the nozzle 16. Optionally, a seal is provided at the opening of the housing 10 to prevent oil fumes and cleaning medium from leaking out of the housing 10.

[0070] Furthermore, such as Figure 3 As shown, the delivery pump 24 is fixed on the outer surface above the housing 10, and the delivery pipe 22 extends into the housing 10 through the opening of the housing 10 and is connected to the spray pipe 16. In this way, the delivery pipe 22 can be kept vertical, so that scale is not easily generated in the delivery pipe 22 when delivering clean media such as clean water.

[0071] Please see Figure 6 and Figure 7 In some embodiments, the cleaning assembly 14 includes a heating element 26 for heating the cleaning medium flowing through the delivery pipe 22.

[0072] In this way, heating the cleaning medium flowing through the delivery pipe 22 can improve the cleaning effect of the cleaning medium.

[0073] Specifically, heating the cleaning medium before spraying it onto the oily surface raises the temperature of the oil, softening it and making it easier to remove. The oil also becomes more fluid at higher temperatures, resulting in a more thorough interaction with the cleaning medium.

[0074] Meanwhile, some cleaning media undergo faster chemical reaction rates under heating conditions, thus more effectively decomposing oil stains and improving cleaning results.

[0075] Please see Figure 6 and Figure 7 In some embodiments, the heating element 26 includes a heating film that covers the outer surface of the delivery pipe 22.

[0076] This can improve heating efficiency and achieve rapid and uniform heating.

[0077] Specifically, a heating film is wrapped around the outer surface of the delivery pipe 22, which can heat the cleaning medium flowing through the delivery pipe 22. The heating film can directly convert electrical energy into heat energy and transfer the heat to the cleaning medium inside the delivery pipe 22 through heat conduction. In this way, the heating of the cleaning medium is fast and efficient, and the temperature of the cleaning medium can be rapidly increased.

[0078] As an example, by heating the cleaning medium with a heating film, the temperature of the cleaning medium at the nozzle 20 position can reach 120°C in a short time.

[0079] Furthermore, the heating film makes the temperature of the cleaning medium flowing through the delivery pipe 22, i.e. the subsequent nozzle 16, higher. The cleaning medium has a cleaning effect on the delivery pipe 22, the nozzle 16, and the nozzle 20, thus making it less likely to clog the delivery pipe 22 and the nozzle 16.

[0080] In one implementation, such as Figure 3 and Figure 6 As shown, a heating film is provided in the part of the conveying pipe 22 that extends into the housing 10, and an electrical terminal 28 is provided in the part of the conveying pipe 22 that is outside the housing 10. When the electrical terminal 28 is energized, the heating film can work and convert electrical energy into heat energy.

[0081] Please see Figures 5 to 7 In some embodiments, the cleaning assembly 14 includes a switching element 30 mounted on the housing 10, the switching element 30 being configured to connect and disconnect the delivery pipe 22 and the nozzle 16.

[0082] Thus, the connection or disconnection of the cleaning medium delivery path can be controlled by the switching element 30.

[0083] Specifically, the switching element 30 is used to connect and disconnect the delivery pipe 22 and the spray nozzle 16. When the delivery pipe 22 and the spray nozzle 16 are connected, the cleaning medium can flow within the delivery path and eventually spray onto the inner wall of the housing 10 and the fan assembly 12. When the delivery pipe 22 and the spray nozzle 16 are disconnected, the spray nozzle 16 does not contact the switching element 30, and there is no cleaning medium flowing within the delivery path, ensuring that the cleaning components do not affect the normal operation of the kitchen appliance 100. This avoids severe wear on the parts in continuous contact with the switching element 30 due to the spray nozzle 16 rotating while the switching element 30 does not rotate during the kitchen appliance 100's fume extraction mode.

[0084] Please see Figure 5 and Figure 7In some embodiments, the switching member 30 includes a fixed part 32 and a movable part 34. The movable part 34 is movably connected to the fixed part 32. The movable part 34 is provided with a medium channel 36, an inlet 38 and an outlet 40. The inlet 38, the outlet 40 and the medium channel 36 are connected. The inlet 38 is connected to the delivery pipe 22. The outlet 40 is connected to or disconnected from the nozzle 16 under the drive of the movable part 34.

[0085] Thus, by controlling the movement of the movable part 34, the connection and disconnection of the delivery pipe 22 and the nozzle 16 can be controlled.

[0086] Specifically, the switching component 30 includes a fixed part 32 and a movable part 34. The movable part 34 can extend and retract relative to the telescopic part along the axial direction of the nozzle 16. The movable part 34 is provided with a medium channel 36, an inlet 38 and an outlet 40. The inlet 38, the outlet 40 and the medium channel 36 are connected. The inlet 38 is connected to the delivery pipe 22. When the movable part 34 extends toward the nozzle 16, the outlet 40 is connected to one end of the nozzle 16. When the movable part 34 retracts in a direction away from the nozzle 16, the movable part 34 is completely separated from the nozzle 16.

[0087] Thus, with the outlet 40 of the switching component 30 connected to the nozzle 16, the cleaning medium source enters the inlet 38 of the moving part 34 through the delivery pipe 22, flows from the outlet 40 into the nozzle 16 through the medium channel 36, and is finally sprayed out from the nozzle hole 20 of the nozzle 16 to the inner wall of the housing 10 and the fan assembly 12.

[0088] In one embodiment, the switching element 30 includes an electromagnetic propulsion device. The electromagnetic propulsion device utilizes the interaction between electric current and magnetic field to generate thrust to enable the movable part 34 to perform linear reciprocating motion, thereby enabling the movable part 34 to connect and disconnect from the nozzle 16.

[0089] In some embodiments, the cleaning component 14 includes a sealing ring 42, which is fitted onto the end of the nozzle 16 that connects to the outlet 40.

[0090] This can prevent leakage of cleaning media.

[0091] Specifically, such as Figure 5 As shown, the sealing ring 42 is fitted onto the end of the nozzle 16 that connects to the outlet 40. The nozzle 16 contacts the medium channel 36 through the sealing ring 42, preventing leakage of the cleaning medium from the connection between the switching element 30 and the nozzle 16. Simultaneously, when the nozzle 16 rotates, wear occurs at the sealing ring 42, reducing wear damage to both the nozzle 16 and the switching element 30. During the use of the kitchen appliance 100, the worn sealing ring 42 can be replaced to maintain a good seal between the nozzle 16 and the switching element 30. This maintenance method is simple, low-cost, and easy to implement.

[0092] In one implementation, such as Figure 5 As shown, there are two sealing rings 42. The two sealing rings 42 are spaced apart on the nozzle 16 and contact the medium channel 36, thus ensuring the sealing effect.

[0093] In some embodiments, the fan assembly 12 includes an impeller 44, a transmission member 46, and an impeller lock nut 48. The transmission member 46 connects the impeller 44 and the output shaft 50 of the drive member 18. The impeller lock nut 48 connects to the output shaft 50 of the drive member 18 and abuts against the transmission member 46 to fix the transmission member 46. One end of the nozzle 16 is fixedly connected to the impeller lock nut 48 so that the nozzle 16 rotates synchronously with the impeller 44.

[0094] Thus, by combining the existing structure of the nozzle 16 with the fan assembly 12, dynamic cleaning of the cleaning assembly 14 can be easily achieved.

[0095] Specifically, the fan assembly 12 includes an impeller 44, a transmission component 46, and an impeller lock nut 48. The transmission component 46 connects the impeller 44 and the output shaft 50 of the drive component 18. The impeller lock nut 48 connects to the output shaft 50 of the drive component 18 and abuts against the transmission component 46 to fix the transmission component 46 in the axial direction of the fan assembly 12. One end of the nozzle 16 is fixedly connected to the impeller lock nut 48 so that the nozzle 16 rotates synchronously with the impeller 44.

[0096] Optionally, the drive unit 18 drives the impeller 44 and the nozzle 16 to rotate, and the rotation direction can be clockwise or counterclockwise.

[0097] In one embodiment, the impeller locking nut 48 is integrally formed with the nozzle 16, and the impeller locking nut 48 is threadedly connected to the output shaft 50 of the drive component 18, such as... Figure 9 As shown, the impeller lock nut 48 has an internal thread, and the output shaft 50 of the drive member 18 has an external thread. The impeller lock nut 48 and the output shaft 50 of the drive member 18 are aligned and screwed in, thus reliably connecting the output shaft 50 of the drive member 18 and the impeller lock nut 48. The impeller lock nut 48 can be tightened clockwise and loosened counterclockwise, or it can be tightened counterclockwise and loosened clockwise. The nozzle 16 extends from the center of the side of the impeller lock nut 48 away from the drive member 18. A partition 52 is provided between the nozzle 16 and the impeller lock nut 48 to prevent the cleaning medium from flowing into the impeller lock nut 48.

[0098] In summary, the kitchen appliance 100 includes a cleaning component 14 to achieve a cleaning function. The inner wall of the housing 10 and the fan assembly 12 of the kitchen appliance 100 are the objects to be cleaned. The delivery pump 24 is located above the housing 10 and is connected in sequence to the delivery pipe 22, the switching element 30, and the spray pipe 16. The switching element 30 is fixed to the side wall of the housing 10, and the spray pipe 16 is fixed to the output shaft 50 of the drive element 18, and the spray pipe 16 has multiple spray holes 20. The drive element 18 drives the spray pipe 16, changing the spray direction of the cleaning medium, thereby increasing the spray range. Through rotational cleaning, the cleaning medium can be sprayed evenly and ensure a large coverage area.

[0099] Cleaning media such as water or detergent are heated into steam as they pass through the delivery pump 24 and delivery pipe 22 for cleaning. Switching element 30 controls the connection between the nozzle 16 and the delivery pipe 22. When cleaning is complete, the delivery pump 24 is disconnected, and then switching element 30 disconnects the nozzle 16 from the delivery pipe 22.

[0100] When the user adds the cleaning medium and starts the cleaning function, the switching element 30 is activated, connecting the nozzle 16 to the delivery pipe 22, and the motor rotates slowly. The delivery pump 24 and the heating element 26 are activated, heating the cleaning medium and spraying steam to soften the oil and clean it. Then, the motor speed is adjusted to make the impeller 44 rotate and spin dry. The above steps can be repeated multiple times, and then each function is turned off in the relevant sequence.

[0101] like Figure 4 As shown, after the cleaning medium is sprayed onto the inner wall of the housing 10 and the fan assembly 12, it flows into the oil collection box 56 through the baffle 54 below, which can prevent oil stains from dripping and affecting the kitchen environment.

[0102] The aforementioned cleaning components, with their rotating nozzle 16, achieve a comprehensive cleaning range covering the inner wall of the housing 10 and the impeller 44. The vertical arrangement of the heating element 26 and the delivery pipe 22 effectively reduces scale buildup. The cleaning components are easy to install and fix, without affecting the fume extraction mode of the kitchen appliance 100. The heating element 26 heats the cleaning medium, combining steam and detergent to enhance the cleaning effect and achieve a more effective cleaning method.

[0103] 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 the present invention. 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.

[0104] 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 kitchen appliance, comprising a housing and a fan assembly, characterized in that, The kitchen appliance also includes a cleaning component, which includes a spray nozzle. One end of the spray nozzle is connected to the drive unit of the fan assembly, and the other end is connected to a cleaning medium source. The spray nozzle has spray holes. The kitchen appliance is configured to control the cleaning medium source to supply cleaning medium to the spray nozzle, and / or to control the drive unit to drive the spray nozzle to rotate.

2. The kitchen appliance according to claim 1, characterized in that, The rotation axis of the fan assembly coincides with the rotation axis of the nozzle.

3. The kitchen appliance according to claim 1, characterized in that, The axial direction of the nozzle is inclined relative to the direction perpendicular to the axial direction of the nozzle pipe toward the fan assembly, or; The axial direction of the nozzle is inclined away from the fan assembly relative to the axial direction perpendicular to the nozzle.

4. The kitchen appliance according to claim 1, characterized in that, The axial direction of the nozzle is perpendicular to the axial direction of the nozzle pipe.

5. The kitchen appliance according to claim 1, characterized in that, The cleaning assembly includes a delivery pipe and a delivery pump. The delivery pipe connects the delivery pump and the nozzle, and the delivery pump connects to the cleaning medium source so that the nozzle is in communication with the cleaning medium source.

6. The kitchen appliance according to claim 5, characterized in that, The cleaning assembly includes a heating element for heating the cleaning medium flowing through the delivery pipe.

7. The kitchen appliance according to claim 6, characterized in that, The heating element includes a heating film that covers the outer surface of the delivery pipe.

8. The kitchen appliance according to claim 5, characterized in that, The cleaning assembly includes a switching element mounted on the housing, the switching element being configured to connect and disconnect the delivery pipe and the nozzle.

9. The kitchen appliance according to claim 8, characterized in that, The switching component includes a fixed part and a movable part. The movable part is movably connected to the fixed part. The movable part is provided with a medium flow channel, an inlet, and an outlet. The inlet, the outlet, and the medium flow channel are connected. The inlet is connected to the delivery pipe. The outlet is connected to or disconnected from the nozzle under the action of the movable part.

10. The kitchen appliance according to claim 9, characterized in that, The cleaning component includes a sealing ring, which is fitted onto the end of the nozzle where it connects to the outlet.

11. The kitchen appliance according to claim 1, characterized in that, The fan assembly includes an impeller, a transmission component, and an impeller lock nut. The transmission component connects the impeller and the output shaft of the drive component. The impeller lock nut connects the output shaft of the drive component and abuts against the transmission component to fix the transmission component. One end of the nozzle is fixedly connected to the impeller lock nut so that the nozzle rotates synchronously with the impeller.

Images