Kitchen air conditioner indoor unit with self-cleaning and oil fume extraction functions and kitchen air conditioner

Abstract

This invention provides a kitchen air conditioner indoor unit and a kitchen air conditioner with self-cleaning and fume extraction functions. The kitchen air conditioner indoor unit includes an air conditioning module and a fume extraction module. The air conditioning module can cool or heat the kitchen, while the fume extraction module can remove cooking fumes and clean the fume extraction duct. The fume extraction module also includes a fume collection hood assembly at its bottom. In fume extraction mode, the fume collection hood assembly can open its suction port to extract fumes below. In cleaning mode, the fume collection hood assembly can close its suction port to prevent wastewater from flowing out of the suction port and store it in the fume collection hood assembly. This invention integrates the functions of an air conditioner and a range hood, enabling the adjustment of kitchen temperature while removing cooking fumes and odors, and automatically cleaning the internal fume extraction duct, greatly improving the comfort and hygiene of the kitchen environment.

Description

Technical Field

[0001] This utility model relates to the field of kitchen air conditioning technology, specifically to a kitchen air conditioner indoor unit and a kitchen air conditioner with self-cleaning and fume extraction functions. Background Technology

[0002] With the fast pace of modern life and increasing emphasis on healthy living, the comfort and hygiene of the kitchen environment have become key concerns. Traditional kitchen air conditioners and range hoods operate independently, not only occupying significant space but also causing numerous inconveniences during use. On the one hand, while regulating temperature, kitchen air conditioners cannot effectively handle the fumes and odors produced during cooking; on the other hand, although range hoods effectively remove fumes, they often fail to address the high temperatures in the kitchen, and over time, grease accumulates, affecting their performance and lifespan.

[0003] Because existing kitchen air conditioning systems have technical problems such as being unable to self-clean while ensuring temperature regulation and fume extraction, this utility model researches and designs a kitchen air conditioning indoor unit and a kitchen air conditioner with self-cleaning and fume extraction functions. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects of existing kitchen air conditioning systems that cannot achieve an integrated structure for temperature regulation, oil fume treatment and self-cleaning, thereby providing a kitchen air conditioning indoor unit and kitchen air conditioner with self-cleaning and oil fume extraction functions.

[0005] To address the aforementioned problems, this utility model provides a kitchen air conditioner indoor unit with self-cleaning and fume extraction functions, comprising:

[0006] The system includes an air conditioning module and a fume extraction module, which are integrated together. The air conditioning module can cool or heat the kitchen, while the fume extraction module can remove cooking fumes and clean the fume duct. The fume extraction module also includes a fume collection hood assembly at its bottom. The fume collection hood assembly can open its suction port in fume extraction mode to extract the fumes below, and it can also close its suction port in cleaning mode to prevent wastewater from flowing out of the suction port and store it in the fume collection hood assembly.

[0007] In some implementations...

[0008] The smoke collection hood assembly includes a smoke collection hood and a water fume baffle. The smoke collection hood includes a bottom plate and side plates. The side plates are arranged around the bottom plate and extend upward, so that the smoke collection hood forms a container structure with the opening facing upward. The bottom plate is provided with a perforated oil fume inlet one. The water fume baffle is arranged at the upper end of the bottom plate and is provided with an oil fume inlet two.

[0009] The water fume baffle is movable. In the fume extraction mode, the water fume baffle can move to connect the second fume inlet with the first fume inlet, so that the smoke inlet of the fume extraction module is opened. In the cleaning mode, the water fume baffle can move to completely separate the second fume inlet from the first fume inlet, so that the smoke inlet of the fume extraction module is closed.

[0010] In some implementations...

[0011] The base plate includes a boss and a sewage drainage trough. The vertical height of the sewage drainage trough is lower than that of the boss, and the sewage drainage trough is located around the boss. The inner circumference of the sewage drainage trough is connected to the boss, and the outer circumference of the sewage drainage trough is connected to the inner wall of the fume hood. The inner wall of the fume hood is the inner wall of the side plate. The water fume baffle is fitted onto the upper end of the boss. One oil fume inlet is located on the boss and penetrates the upper and lower end faces of the boss. Another oil fume inlet penetrates the upper and lower end faces of the water fume baffle.

[0012] In some implementations...

[0013] There are multiple first-type oil fume inlets, and the multiple first-type oil fume inlets are arranged in multiple rows and columns on the protrusion. There are multiple second-type oil fume inlets, and the multiple second-type oil fume inlets are arranged in multiple rows and columns on the water fume baffle. The first-type oil fume inlets and the second-type oil fume inlets are arranged in a one-to-one correspondence.

[0014] In the fume extraction mode, the water fume baffle moves so that each of the multiple fume inlets 1 and 2 is opposite to and connected to the others. In the cleaning mode, the water fume baffle moves so that each of the multiple fume inlets 1 and 2 is completely offset from the others, forming a non-connected system. The inner wall of the fume hood is also provided with a sewage outlet, which is connected to the sewage drainage trough. The sewage outlet can be opened or closed depending on the cleaning status.

[0015] In some implementations...

[0016] It also includes a slider, a lead screw, and a stepper motor. The slider is connected to one side of the hookah baffle. The slider is threaded onto the lead screw. The stepper motor is connected to the lead screw to drive the lead screw to rotate, thereby driving the slider to reciprocate along the axis of the lead screw, and thus driving the hookah baffle to move on the boss.

[0017] In some implementations...

[0018] There are at least two sliders, and at least two sliders are connected between the hookah baffle and the lead screw. The sliders, the lead screw and the stepper motor form at least part of the structure of the drive transmission mechanism. One set of the drive transmission mechanism is provided on one side of the hookah baffle and another set of the drive transmission mechanism is provided on the other side.

[0019] In some implementations...

[0020] The fume extraction module also includes a fume filter and a fume cleaning device. The fume cleaning device is located between the upper end of the fume collection hood assembly and the air conditioning module. The fume cleaning device includes a water storage tank, a cleaning water inlet, and a spray pipe. The water storage tank can collect the condensate generated by the air conditioning module. The cleaning water inlet can introduce external cleaning water into the water storage tank. The spray pipe is connected to the water storage tank, and the other end of the spray pipe can extend to the bottom of the fume filter to clean the fume filter.

[0021] In some implementations...

[0022] The water spray pipe includes a short water spray pipe and a long water spray pipe. The oil fume filter screen is installed in the oil fume channel of the oil fume extraction module to filter the oil fumes flowing through the oil fume filter screen. The length of the short water spray pipe is shorter than the length of the long water spray pipe. The short water spray pipe can spray water from the water storage tank to a position on the oil fume filter screen that is relatively close to the water storage tank. The long water spray pipe can spray water from the water storage tank to the entire lower surface of the oil fume filter screen.

[0023] In some implementations...

[0024] When the system also includes the inner wall of the fume hood and the water fume baffle, the water in both the short and long water spray pipes can clean the oil fume channel, the inner wall of the fume hood, and the upper surface of the water fume baffle. The kitchen air conditioner indoor unit has a daily cleaning mode and a periodic cleaning mode. When operating in the daily cleaning mode, only the short water spray pipes can be turned on to spray water, while the long water spray pipes are turned off. When operating in the periodic cleaning mode, both the short and long water spray pipes can be turned on to spray water. There are multiple short water spray pipes and multiple long water spray pipes.

[0025] In some implementations...

[0026] The water storage tank includes a first water storage tank and a second water storage tank. The first water storage tank is located at the upper end of the second water storage tank and is connected to the second water storage tank. The clean water inlet is connected to the first water storage tank, and the spray pipe is connected to the second water storage tank. A water pump is also provided in the first water storage tank so that the clean water in the first water storage tank is drawn into the second water storage tank and then sprayed out from the spray pipe.

[0027] In some implementations...

[0028] The air conditioning module includes a refrigerant inlet, a refrigerant outlet, a heat exchanger, an air conditioning inlet filter, an air conditioning sweeping mechanism, an air conditioning fan assembly, and a housing. The fume extraction module also includes a fume extraction fan assembly and a flue gas outlet pipe. The refrigerant inlet, the refrigerant outlet, the air conditioning inlet filter, and the air conditioning sweeping mechanism are all located on the housing. The heat exchanger and the air conditioning fan assembly are both located inside the housing. The fume extraction fan assembly is also located inside the housing and is arranged side by side with the air conditioning fan assembly. The flue gas outlet pipe is located on the housing and communicates with the air outlet of the fume extraction fan assembly.

[0029] This utility model also provides a kitchen air conditioner, which includes the aforementioned kitchen air conditioner indoor unit with self-cleaning and fume extraction functions.

[0030] The kitchen air conditioner indoor unit and kitchen air conditioner with self-cleaning and fume extraction functions provided by this utility model have the following beneficial effects:

[0031] 1. This utility model proposes a self-cleaning kitchen air conditioner indoor unit with fume extraction function. The air conditioning module provides cooling in summer and heating in winter, while the fume extraction module removes cooking fumes and cleans the fume duct. Furthermore, the fume collection hood assembly at the bottom of the fume extraction module allows for fume extraction by opening the vent in fume extraction mode and closing it in cleaning mode. This prevents wastewater from flowing into the stove and stores it in the fume collection hood assembly (preferably a wastewater drain tank), resulting in more thorough cleaning and water conservation. This device integrates the functions of an air conditioner and a range hood, effectively removing cooking fumes and odors while regulating kitchen temperature and automatically cleaning the internal fume duct. This significantly improves the comfort and hygiene of the kitchen environment. The integrated design simplifies kitchen equipment layout, saves space, and enhances user experience. It effectively solves the problem of existing kitchen air conditioners lacking an integrated structure for temperature regulation, fume handling, and self-cleaning, thus improving its adaptability.

[0032] 2. This utility model also improves the cleaning efficiency and makes the cleaning more thorough by setting a sewage outlet on the inner wall of the fume hood at the bottom, which penetrates the inner wall of the fume hood to the outer wall and can be connected to the sewage drain trough. Compared with the existing technology that blows out condensed water vapor and oil fumes together, this utility model can store water and prevent water from being discharged from the relatively high protrusion. This further prevents sewage from flowing from the smoke inlet to the stove in the cleaning mode, further improving the cleaning effect of the fume extraction module and saving the amount of cleaning water used.

[0033] 3. This utility model further utilizes the configuration of long and short water spray pipes to selectively open or close them according to different modes. Especially in the daily cleaning mode, only the short water spray pipe can be opened to spray water, while the long water spray pipe is closed, ensuring cleaning effectiveness while saving water. When running in the periodic cleaning mode, both the short and long water spray pipes can be opened to spray water, effectively ensuring cleaning effectiveness. Therefore, it can achieve thorough cleaning while saving water. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the external structure of the indoor unit of the kitchen air conditioner according to this utility model;

[0035] Figure 2 This is a schematic diagram of the air conditioning module of the kitchen air conditioner indoor unit of this utility model;

[0036] Figure 3 This is a structural diagram of the air conditioning sweeping mechanism of this utility model;

[0037] Figure 4 This is a structural diagram of the fume extraction module of the indoor unit of a kitchen air conditioner according to this utility model;

[0038] Figure 5 This is a combined structural diagram of the air conditioner fan assembly and the range hood fan assembly of this utility model;

[0039] Figure 6 This is a structural diagram of the oil fume cleaning device for the indoor unit of a kitchen air conditioner according to this utility model;

[0040] Figure 7 This is a structural diagram of the smoke collection hood assembly of this utility model;

[0041] Figure 8 This is a structural diagram of the smoke collection hood structure of this utility model.

[0042] The reference numerals in the attached figures are as follows:

[0043] 100. Air conditioning module; 101. Rear side panel of housing; 102. Front side panel of housing; 103. Lower side panel of housing; 104. Water baffle; 105. Heat insulation plate; 106. Air conditioning inlet filter; 107. Heat exchanger; 110. Refrigerant inlet; 120. Refrigerant outlet; 130. Air conditioning sweeping mechanism; 131. Air conditioning outlet filter; 132. Upper and lower sweeping blades; 133. Connecting rod; 134. Left and right sweeping blades; 135. Sweeping mechanism drive motor; 140. Air conditioning outlet; 150. Air conditioning fan assembly; 151. Lower side panel of exhaust fan assembly; 152. Front side panel of exhaust fan assembly; 153. Exhaust fan; 154. Rear side panel of exhaust fan assembly; 160. Air conditioning inlet; 170. Air conditioning condensate outlet;

[0044] 200. Fume extraction module; 210. Clean water inlet; 220. Sewage outlet; 230. Fume hood assembly; 231. Fume hood; 232. Water fume baffle; 233. Slider; 234. Lead screw; 235. Stepper motor; 236. Fume inlet one; 236b. Fume inlet two; 237. Boss; 238. Sewage drainage trough; 239. Inner wall of fume hood; 240. Fume cleaning device; 241. Partition plate; 242. Rear side plate of cleaning device housing; 243. Cleaning device housing 244. Left side panel; 245. Second water tank; 246. Water pump; 247. Short spray pipe; 248. First water tank; 249. Long spray pipe; 250. Fume filter; 260. Fume outlet pipe; 261. Fume extraction fan assembly; 262. Left side panel of air conditioning fan assembly; 263. Sound-absorbing block; 264. Air conditioning fan; 265. Rear side panel of air conditioning fan assembly; 266. Right side panel of air conditioning fan assembly; 267. Lower side panel of air conditioning fan assembly; 268. Front side panel of air conditioning fan assembly.

[0045] 300. Camera; 400. Electrical box assembly. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0049] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0052] like Figure 1-8 As shown, this utility model provides a kitchen air conditioner indoor unit with self-cleaning and fume extraction functions, which includes:

[0053] An air conditioning module 100 and a fume extraction module 200 are integrated together. The air conditioning module 100 can cool the kitchen in summer and heat it in winter. The fume extraction module 200 can remove cooking fumes and clean the fume duct. The fume extraction module 200 also includes a fume collection hood assembly 230 at its bottom. The fume collection hood assembly 230 can open its smoke inlet in fume extraction mode to extract the fumes below. The fume collection hood assembly 230 can also close its smoke inlet in cleaning mode, so that the wastewater generated during cleaning will not flow out of the smoke inlet (especially into the stove) and will be stored in the fume collection hood assembly (preferably a wastewater drain tank), thereby enabling deep cleaning of grease.

[0054] This invention proposes a self-cleaning kitchen air conditioner indoor unit with fume extraction function. The air conditioning module provides cooling in summer and heating in winter, while the fume extraction module removes cooking fumes and cleans the fume duct. Furthermore, a fume collection hood assembly at the bottom of the fume extraction module allows for fume extraction by opening the vent in fume extraction mode and closing it in cleaning mode. This prevents wastewater from flowing into the stove and stores it in the fume collection hood assembly (preferably a wastewater drain), resulting in more thorough cleaning and water conservation. This device integrates the functions of an air conditioner and a range hood, effectively removing cooking fumes and odors while regulating kitchen temperature and automatically cleaning the internal fume duct. This significantly improves the comfort and hygiene of the kitchen environment. The integrated design simplifies kitchen equipment layout, saves space, and enhances the user experience. It effectively solves the problem of existing kitchen air conditioners lacking an integrated structure for temperature regulation, fume handling, and self-cleaning, thus improving its adaptability.

[0055] In some implementations...

[0056] The smoke collection hood assembly 230 includes a smoke collection hood 231 and a water fume baffle 232. The smoke collection hood 231 includes a bottom plate and side plates. The side plates are arranged around the bottom plate and extend upward, so that the smoke collection hood 231 forms a container structure with the opening facing upward. The bottom plate is provided with a perforated oil fume inlet 236. The water fume baffle 232 is arranged at the upper end of the bottom plate and has an oil fume inlet 236b.

[0057] The hookah baffle 232 is movable. In the fume extraction mode, the hookah baffle 232 can move to connect the second fume inlet 236b with the first fume inlet 236, thereby opening the smoke inlet of the fume extraction module 200. In addition, by controlling the movement of the hookah baffle 232, the opening size of the smoke inlet can be adjusted to adapt to different settings of the fume extraction module 200. In the cleaning mode, the hookah baffle 232 can move to completely offset the second fume inlet 236b from the first fume inlet 236, thereby closing the smoke inlet of the fume extraction module 200.

[0058] This is a preferred structural form of the fume hood assembly of this utility model. The fume hood collects and extracts cooking fumes, while the water fume baffle blocks fumes coming from below and water falling from above. The water fume baffle of this utility model achieves two different operating modes through movement. In fume extraction mode, the water fume baffle moves to connect fume inlets one and two, effectively extracting fumes from below. In cleaning mode, the water fume baffle moves to completely separate fume inlets one and two, thus closing the extraction port and ensuring that the cleaning water sprayed from the water pipe does not flow through fume inlets one and two to the stove below the fume hood but is stored in the wastewater drain tank of the fume hood assembly. This effectively cleans the fume extraction module, resulting in a more thorough cleaning, ensuring cleaning effect while saving water, improving cleaning cleanliness, and increasing system energy efficiency.

[0059] In some implementations...

[0060] The base plate includes a boss 237 and a sewage drainage trough 238. The vertical height of the sewage drainage trough 238 is lower than that of the boss 237, and the sewage drainage trough 238 is located around the boss 237. The inner periphery of the sewage drainage trough 238 is connected to the boss 237, and the outer periphery of the sewage drainage trough 238 is connected to the inner wall 239 of the fume hood. The inner wall 239 of the fume hood is the inner wall of the side plate. The first fume inlet 236 is provided on the boss 237 and penetrates the upper and lower end faces of the boss 237. The second fume inlet 236b penetrates the upper and lower end faces of the water fume baffle 232.

[0061] This utility model utilizes a preferred structural form of the base plate, namely a structure including a boss and a sewage drainage trough. The boss protrudes upward to support the water fume baffle, and the sewage drainage trough, which is lower than the height of the boss, is used to store water in the cleaning mode. This further prevents sewage from being discharged from the smoke inlet during the cleaning mode, thereby further improving the soaking and cleaning effect on the fume extraction module and increasing the cleaning cleanliness.

[0062] In some implementations...

[0063] There are multiple fume inlets 236, and the multiple fume inlets 236 are arranged in multiple rows and columns on the protrusion 237. There are multiple fume inlets 236b, and the multiple fume inlets 236b are arranged in multiple rows and columns on the water fume baffle 232. The fume inlets 236 and the fume inlets 236b are arranged in a one-to-one correspondence.

[0064] When in fume extraction mode, the water fume baffle 232 moves to connect all the multiple fume inlets 236 and 236b. When in cleaning mode, the water fume baffle 232 moves to completely separate the multiple fume inlets 236 and 236b, forming a non-connected system. The inner wall 239 of the fume hood is also provided with a sewage outlet 220, which is connected to the sewage drainage trough 238.

[0065] This invention, through its structure of multiple fume inlets (first type) on multiple protrusions and multiple fume inlets (second type) on the water fume baffle, increases the flow area of ​​fumes in fume extraction mode, improving the fume extraction effect and performance. In cleaning mode, the multiple fume inlets (first type) and (second type) are completely staggered, blocking the smoke inlet formed when the two inlets are connected, thus maximizing water storage inside the fume hood and achieving a water-immersion cleaning effect, improving cleaning cleanliness while saving water. Furthermore, by providing a wastewater outlet on the inner wall of the fume hood at the bottom, which penetrates the inner wall to the outer wall and connects to a wastewater drainage trough, this invention further improves cleaning cleanliness compared to existing technologies that blow out condensed water vapor and fumes together, resulting in a more thorough cleaning.

[0066] In some implementations...

[0067] It also includes a slider 233, a lead screw 234, and a stepper motor 235. The slider 233 is connected to one side of the hookah baffle 232. The slider 233 is threaded onto the lead screw 234. The stepper motor 235 is connected to the lead screw 234 to drive the lead screw 234 to rotate, thereby driving the slider 233 to reciprocate along the axis of the lead screw 234, and thus driving the hookah baffle 232 to move on the boss 237.

[0068] This utility model, through the aforementioned structure of slider, lead screw, and stepper motor, can form an effective drive transmission structure, effectively driving the water fume baffle to reciprocate on the boss, thereby completing the connection between oil fume inlet one and oil fume inlet two, suitable for the oil fume extraction mode, and forming a completely staggered, non-connected state between oil fume inlet one and oil fume inlet two, suitable for the cleaning mode, improving the cyclic cleaning effect of the oil fume extraction module and improving the cleaning cleanliness.

[0069] In some implementations...

[0070] There are at least two sliders 233, and at least two sliders 233 are connected between the hookah baffle 232 and the lead screw 234. The sliders, the lead screw 234 and the stepper motor 235 form at least part of the structure of the drive transmission mechanism. One set of the drive transmission mechanism is provided on one side of the hookah baffle 232 and another set of the drive transmission mechanism is provided on the other side.

[0071] This is a further preferred structural form of the drive transmission structure of this utility model. By setting the above-mentioned slider, lead screw and stepper motor on both sides of the water fume baffle, the drive transmission effect of the water fume baffle can be improved, and the conversion between the fume extraction mode and the cleaning mode can be completed more accurately, as well as the adaptation of the smoke inlet opening and the fume extraction module gear in the fume extraction mode.

[0072] Figure 7 This is a schematic diagram of the smoke collection hood assembly of this utility model. Figure 8 This is a schematic diagram of the structure of the smoke collection hood 231 of this utility model. From the inside, the bottom of the smoke collection hood is an inward-facing boss structure. The rectangular hole on the boss 237 is the oil fume inlet 236, and the groove around the boss is the sewage drainage groove 238. During the cleaning of the internal fume duct, two stepper motors 235 simultaneously drive the lead screw 234 to rotate. Since the four sliders 233 are connected and fixed together with the water fume baffle 232, the rotating lead screw pushes the sliders to move, which in turn moves the water fume baffle. As the water fume baffle is attached to the upper surface of the inner boss of the fume hood, the fume inlet of the fume hood is closed when the water fume baffle moves to its maximum stroke. Then, clean water is introduced to clean the internal fume duct. The wastewater generated during cleaning will flow into the wastewater drain tank along the boss and the inner wall 239 of the fume hood. At this time, the wastewater outlet 220 is closed. When the water in the wastewater drain tank is about to reach the top surface of the boss, the water spray pipe and water pump are turned off, so that the clean water soaks the inner wall of the fume hood, achieving the effect of soaking and cleaning. After soaking for five minutes, the wastewater outlet 220 is opened to discharge the wastewater. Then, the water pump and water spray pipe are turned on to clean the fume duct. After cleaning, the fume fan and smoke inlet are turned on to dry the fume duct.

[0073] In some implementations...

[0074] The fume extraction module 200 also includes a fume filter 249 and a fume cleaning device 240. The fume cleaning device 240 is disposed between the upper end of the fume collection hood assembly 230 and the air conditioning module 100. The fume cleaning device 240 includes a water storage tank, a cleaning water inlet 210 and a spray pipe. The water storage tank can collect the condensate generated by the air conditioning module 100. The cleaning water inlet 210 can introduce external cleaning water into the water storage tank. The spray pipe is connected to the water storage tank, and the other end of the spray pipe can extend to the bottom of the fume filter 249 to clean the fume filter 249.

[0075] This is a further preferred structural form of the fume extraction module of this utility model. The structure of the fume filter can filter the fumes that pass through it, filtering out impurities such as dust. The fume cleaning device includes a water storage tank to collect the condensate generated by the air conditioning module, a cleaning water inlet to introduce cleaning water from the outside to ensure the water supply for cleaning, and a spray pipe to spray the water in the water storage tank onto the fume filter to achieve effective cleaning of the fume filter.

[0076] In some implementations...

[0077] The water spray pipe includes a short water spray pipe 246 and a long water spray pipe 248. The oil fume filter 249 is disposed in the oil fume channel of the oil fume extraction module 200 to filter the oil fumes flowing through the oil fume filter 249. The length of the short water spray pipe 246 is shorter than the length of the long water spray pipe 248. The short water spray pipe 246 can spray water from the water storage tank onto the oil fume filter 249, which is relatively close to the water storage tank. The long water spray pipe 248 can spray water from the water storage tank onto the entire lower surface of the oil fume filter 249.

[0078] This invention, through the preferred structure of the short and long water spray pipes, can clean the oil fume filter near the water storage tank using the short water spray pipe, and can also clean the entire oil fume filter using the long water spray pipe, thereby achieving cleaning in different modes and saving cleaning water.

[0079] In some implementations...

[0080] When the system also includes the inner wall 239 of the fume hood and the water fume baffle 232, the water in the short spray pipe 246 and the long spray pipe 248 can also clean the upper surfaces of the fume duct, the inner wall 239 of the fume hood, and the water fume baffle 232. The kitchen air conditioner indoor unit has a daily cleaning mode and a periodic cleaning mode. When the system is in daily cleaning mode, only the short spray pipe 246 can be turned on to spray water, while the long spray pipe 248 is turned off. When the system is in periodic cleaning mode, both the short spray pipe 246 and the long spray pipe 248 can be turned on to spray water. There are multiple short spray pipes 246 and multiple long spray pipes 248.

[0081] This invention further utilizes the aforementioned arrangement of long and short water spray pipes to selectively open or close them according to different modes. Specifically, in daily cleaning mode, only the short water spray pipe can be opened to spray water, while the long water spray pipe is closed, ensuring cleaning effectiveness while conserving water. In periodic cleaning mode, both the short and long water spray pipes can be opened to spray water, effectively guaranteeing cleaning results. Therefore, it achieves thorough cleaning while also conserving water.

[0082] In some implementations...

[0083] The water storage tank includes a first water storage tank 247 and a second water storage tank 244. The first water storage tank 247 is located at the upper end of the second water storage tank 244 and is connected to the second water storage tank 244. The clean water inlet 210 is connected to the first water storage tank 247, and the spray pipe is connected to the second water storage tank 244. A water pump 245 is also provided in the first water storage tank 247 so that the clean water in the first water storage tank 247 is drawn into the second water storage tank 244 and then sprayed out from the spray pipe.

[0084] This utility model also utilizes the aforementioned structure of the first and second water storage tanks. The first water storage tank, located at the top, can collect the condensate water falling from the evaporator and the water entering through the external cleaning water inlet. The second water storage tank, located at the bottom, can drain the water stored in the first water storage tank and spray it through a water spray pipe to clean the oil fume filter, the inner wall of the fume collection hood, and the exhaust duct.

[0085] Figure 6This is a schematic diagram of the oil fume cleaning device of this utility model. Two short spray pipes 246 and three long spray pipes 248 are installed in the internal channel of the oil fume cleaning device, and their openings are all connected to the second water storage tank 244. In cleaning mode, when the user needs to clean the oil stains immediately after cooking, since the accumulated condensate water is relatively low, the cleaning water inlet 210 can be opened to allow external cleaning water to flow into the first water storage tank 247. Then, after the cleaning water submerges the water pump 245, the water pump is turned on. At this time, the water pump continuously draws the cleaning water injected into the first water storage tank into the second water storage tank. Because of daily cleaning, the oil stains do not accumulate. Then, by controlling the solenoid valves installed 20mm away from the opening of each long spray pipe, the long spray pipes are closed. Finally, the cleaning water will only be sprayed out from the short spray pipes to clean the oil fume channel and oil fume filter. The purpose of 249 and the inner wall of the fume hood 239 is to save cleaning water resources by only opening the short spray pipes. When the user does not need to clean daily, the condensate can accumulate in the first water tank. When the condensate accumulates in the first water tank and submerges the water pump, the water pump is turned on. At the same time, by controlling each solenoid valve, each long spray pipe is turned on. The water pump draws the condensate into the second water tank and then sprays it out from the short and long spray pipes, thereby cleaning the fume duct, the fume filter 249, and the inner wall of the fume hood. If the water volume is insufficient, the cleaning water inlet 210 can be opened to compensate for the lack of cleaning water. After each cleaning, the exhaust fan is turned on to dry the internal fume duct, ultimately achieving the purpose of automated cleaning of the fume duct. In the figure, the partition plate 241 and the rear side plate 242 of the cleaning device housing are respectively provided with guide grooves, and the corresponding left side plate 243 of the cleaning device housing is provided with insertion holes, so as to facilitate the disassembly and replacement of the fume filter 249. It should be noted that the number and location of the water spray pipes depend on the cleaning effect of the internal oil fume duct; the number and location in this utility model are merely examples.

[0086] When users need to clean daily, only the short spray nozzle should be turned on to save water. When daily cleaning is not required, both the short and long spray nozzles should be turned on simultaneously for a more thorough cleaning, while also utilizing condensate to save water. The goal is to achieve both thorough cleaning and water conservation.

[0087] In some implementations...

[0088] The air conditioning module 100 includes a refrigerant inlet 110, a refrigerant outlet 120, a heat exchanger 107, an air conditioning inlet filter 106, an air conditioning sweeping mechanism 130, an air conditioning fan assembly 150, and a housing. The fume extraction module 200 also includes a fume extraction fan assembly 260 and a flue gas outlet pipe 250. The refrigerant inlet 110, the refrigerant outlet 120, the air conditioning inlet filter 106, and the air conditioning sweeping mechanism 130 are all disposed on the housing. The heat exchanger 107 and the air conditioning fan assembly 150 are both disposed inside the housing. The fume extraction fan assembly 260 is also disposed inside the housing and is arranged side by side with the air conditioning fan assembly 150. The flue gas outlet pipe 250 is disposed on the housing and communicates with the air outlet of the fume extraction fan assembly 260.

[0089] This utility model, through the specific structural design of the air conditioning module and the fume extraction module, especially the fact that the air conditioning fan assembly, heat exchanger and fume extraction fan assembly are all located inside the housing, and the fume extraction fan assembly and the air conditioning fan assembly are arranged side by side, can make the overall structure more compact, reduce the volume, and achieve an optimized structural layout.

[0090] Figure 1 This is a schematic diagram of the external structure of the indoor unit of the kitchen air conditioner of this utility model. Figure 2 This is a schematic diagram of the air conditioning module for the indoor unit of a kitchen air conditioner. Figure 4 This is a schematic diagram of the fume extraction module of a kitchen air conditioner indoor unit. Figure 1 As shown, this utility model is a self-cleaning kitchen air conditioner indoor unit with a fume extraction function, mainly composed of an air conditioning module 100 and a fume extraction module 200. For the air conditioning module, in summer cooling mode, low-temperature refrigerant enters the heat exchanger 107 through the refrigerant inlet 110, exchanges heat with the air, and then flows out through the refrigerant outlet 120. Simultaneously, the air conditioning fan assembly 150 draws in kitchen air through the air conditioning inlet 160, exchanges heat with the low-temperature refrigerant, and then blows the resulting low-temperature air out through the air conditioning outlet 140, thus achieving summer cooling. For the fume extraction module, under the action of the fume extraction fan assembly 260, cooking fumes enter the fume duct through the fume inlet below the fume collection hood assembly 230, pass through the internal channel of the fume cleaning device 240, and are then discharged from the fume outlet pipe 250 by the fume extraction fan assembly, thereby effectively removing cooking fumes and odors. Furthermore, Figure 1The cleaning water inlet 210 is used to connect to external cleaning water to provide a water source for the fume cleaning device; the sewage outlet 220 in the figure is used to connect to the kitchen drain pipe, and the sewage generated after cleaning is discharged into the sewer through the sewage outlet; the camera 300 is like an eye, used for facial recognition, thereby realizing precise air delivery of the air conditioner; the electrical box assembly 400 is the control system of the entire indoor unit, which can manually adjust the air conditioner temperature, adjust the fume extraction level, display the overall operating status, set automatic cleaning, and turn the entire unit on and off.

[0091] like Figure 2 As shown, the air conditioning module of the indoor unit of the kitchen air conditioner of this utility model consists of an air conditioning sweeping mechanism 130, an air conditioning housing, a heat exchanger 107, an air conditioning fan assembly 150, a water baffle 104, and an air conditioning inlet filter 106. The air conditioning sweeping mechanism is installed on the front panel 102 of the housing, and the front panel of the housing has an air conditioning outlet 140 of a corresponding size; the heat exchanger, air conditioning fan assembly, water baffle, and... Figure 4 The range hood fan assembly 260 is installed on the lower side plate 103 of the housing, and the lower side plate of the housing has an air conditioner condensate drain outlet 170 and a correspondingly sized air inlet for the range hood fan assembly. The condensate generated by the air conditioner can flow into the air conditioner through the air conditioner condensate drain outlet. Figure 6 The first water storage tank 247 stores water for use as a water source for the fume cleaning device, thereby not only recovering the condensate but also preventing the direct discharge of condensate from corroding and polluting the walls. Figure 2 The purpose of the baffle plate 104 is twofold: firstly, to block condensate and prevent it from wetting the insulation plate 105 and affecting the insulation effect; secondly, to allow condensate to collect and flow into the air conditioner condensate outlet. The air conditioner inlet filter 106 in the figure is installed on the rear side plate 101 of the housing and adopts a guide groove structure to facilitate the installation and removal of the inlet filter. The insulation plate 105 separates the air conditioner fan assembly 150 and the range hood fan assembly 260, preventing the heat of the high-temperature flue gas in the range hood fan assembly from being transferred to the air in the air conditioner fan assembly, thereby improving the cooling efficiency of the air conditioner to a certain extent.

[0092] Figure 3 This is a schematic diagram of the air-conditioning sweeping mechanism of this utility model. The air-conditioning outlet filter 131 is used to block oil fumes from entering the internal channel of the air-conditioning module from the air-conditioning outlet, so as to avoid the accumulation of oil on the heat exchanger fins and reduce the heat exchange efficiency. The two sweeping mechanism drive motors 135 are respectively connected to the upper and lower sweeping blades 132 and the left and right sweeping blades 134, driving the sweeping blades to rotate. Under the drive of the four connecting rods 133, the sweeping blades swing up and down and left and right. Combined with the human face recognition function of the camera, the air is accurately delivered to the user, thereby shortening the time it takes for the user to feel cool / warm in the kitchen.

[0093] Figure 5The diagram shows the air conditioner fan assembly and the range hood fan assembly of this utility model. They each have a corresponding housing to block the outward transmission of noise from the air conditioner fan 263 and the range hood fan 153, respectively. For the air conditioning fan assembly, a certain number of sound-absorbing blocks 262 are arranged on both the left side plate 261 and the right side plate 265 of the air conditioning fan assembly. Through the design of a unique sound-absorbing structure, the noise generated by the two air conditioning fans can be effectively absorbed, further achieving the noise reduction effect. Whether to arrange sound-absorbing blocks inside the exhaust fan assembly housing can be decided based on the overall noise level and size of the unit. In addition, the two air conditioning fans are installed on the lower side plate 266 of the air conditioning fan assembly. The corresponding air conditioning fan inlet and outlet are opened on the front side plate 267 and the rear side plate 264 of the air conditioning fan assembly, respectively. The purpose of using two air conditioning fans is to improve the cooling / heating power of the air conditioning module. For the exhaust fan assembly, the exhaust fan 153 is installed on the rear side plate 154 of the exhaust fan assembly. The corresponding exhaust fan inlet and outlet are opened on the lower side plate 151 and the front side plate 152 of the exhaust fan assembly, respectively. This section explains that the combination of the number of air conditioning fans and the range hood fan depends on the overall fume extraction and cooling / heating performance of the unit. This utility model only uses two air conditioning fans and one range hood fan as an example.

[0094] The air conditioner inlet filter, air conditioner outlet filter, and fume filter in this invention are all made of flexible material, making them easy to disassemble, clean, and replace. It should be noted that the filters shown in the figures are for filtering fumes; the mesh size depends on the actual situation, and the mesh size shown in the figures is for illustrative purposes only.

[0095] The beneficial effects of this utility model are as follows:

[0096] 1. Due to the integrated design, the layout of kitchen equipment is simplified. Compared with traditional kitchen air conditioners and range hoods, the overall space occupied by this utility model is reduced by 50%.

[0097] 2. Because a filter and cleaning device is installed in the fume duct, the fume duct can be automatically cleaned. This utility model improves the cleanliness and hygiene level by 80% compared with traditional range hoods.

[0098] 3. By adopting an up-and-down and left-and-right air-sweeping mechanism, combined with the human face recognition function of the camera, this utility model can achieve precise air delivery to people. Compared with traditional kitchen air conditioners, the time it takes for people to feel cool / warm in the kitchen is shortened by 75%.

[0099] 4. By collecting the condensate from the heat exchanger into the first water storage tank, not only is the direct discharge of the condensate avoided, but the condensate can also be recycled and reused for cleaning the fume duct.

[0100] 5. Due to the unique sound-absorbing structure adopted by this utility model, the outward transmission of noise is reduced, and the noise of this utility model is reduced by 45% compared with traditional kitchen air conditioners and range hoods.

[0101] This utility model also provides a kitchen air conditioner, which includes the aforementioned kitchen air conditioner indoor unit with self-cleaning and fume extraction functions.

[0102] This utility model integrates the air conditioning module and the fume extraction module through an integrated design, thereby greatly reducing the space occupied by the indoor unit of the kitchen air conditioner compared to traditional kitchen air conditioners and range hoods.

[0103] This invention, by recycling condensate, avoids the corrosion and pollution of kitchen walls caused by direct discharge of condensate, and provides a supplementary water source for cleaning the internal channels of the fume extraction module.

[0104] This invention improves the hygiene level of the kitchen by designing an oil fume cleaning device inside the exhaust module's internal channel.

[0105] This invention reduces the noise of the indoor unit of a kitchen air conditioner by employing a unique noise reduction structure, thereby improving user comfort.

[0106] This invention utilizes the image recognition function of a camera, combined with its air-sweeping mechanism, to achieve precise air delivery to users, quickly making them feel cool or warm.

[0107] This utility model can solve the following technical problems:

[0108] 1. Traditional kitchen air conditioners and range hoods are installed separately, which takes up a lot of kitchen space.

[0109] 2. Cleaning the internal channels of the range hood.

[0110] 3. While removing cooking fumes, range hoods also remove cool / warm air from the kitchen, which can significantly reduce the cooling / heating efficiency of kitchen air conditioners.

[0111] 4. The kitchen has a lot of oil fumes, and the direct discharge of condensate will corrode and stain the walls.

[0112] 5. The fan generates significant noise during operation, which reduces the comfort of the kitchen environment.

[0113] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A kitchen air conditioner indoor unit having self-cleaning and oil fume extraction functions, characterized by: include: An air conditioning module (100) and a fume extraction module (200) are connected as one unit. The air conditioning module (100) can cool or heat the kitchen, and the fume extraction module (200) can remove the cooking fumes and clean the fume duct. The fume extraction module (200) also includes a fume collection hood assembly (230) at its bottom. The fume collection hood assembly (230) can open its smoke inlet in the fume extraction mode to extract the fumes below it. The fume collection hood assembly (230) can also close its smoke inlet in the cleaning mode so that the wastewater generated during cleaning will not flow out of the smoke inlet and will be stored in the fume collection hood assembly.

2. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 1, characterized in that: The smoke collection hood assembly (230) includes a smoke collection hood (231) and a water fume baffle (232). The smoke collection hood (231) includes a bottom plate and a side plate. The side plate is disposed around the bottom plate and extends upward, so that the smoke collection hood (231) forms a container structure with the opening facing upward. The bottom plate is provided with a perforated oil fume inlet (236). The water fume baffle (232) is disposed at the upper end of the bottom plate and is provided with an oil fume inlet (236b). The water fume baffle (232) is movable. In the fume extraction mode, the water fume baffle (232) is movable to connect the second fume inlet (236b) with the first fume inlet (236), so that the smoke inlet of the fume extraction module (200) is opened. In the cleaning mode, the water fume baffle (232) is movable to completely separate the second fume inlet (236b) from the first fume inlet (236), so that the smoke inlet of the fume extraction module (200) is closed.

3. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 2, characterized in that: The base plate includes a boss (237) and a sewage drainage trough (238). The vertical height of the sewage drainage trough (238) is lower than that of the boss (237), and the sewage drainage trough (238) is located around the boss (237). The inner periphery of the sewage drainage trough (238) is connected to the boss (237), and the outer periphery of the sewage drainage trough (238) is connected to the inner wall (239) of the smoke hood. The inner wall (239) of the smoke hood is the inner wall of the side plate. The water fume baffle (232) is fitted onto the upper end of the boss (237). The first oil fume inlet (236) is set on the boss (237) and penetrates the upper and lower end faces of the boss (237). The second oil fume inlet (236b) penetrates the upper and lower end faces of the water fume baffle (232).

4. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 3, characterized in that: There are multiple fume inlets (236), and the multiple fume inlets (236) are arranged in multiple rows and columns on the boss (237). There are multiple fume inlets (236b), and the multiple fume inlets (236b) are arranged in multiple rows and columns on the water fume baffle (232). The fume inlets (236) and the fume inlets (236b) are arranged in a one-to-one correspondence. When in fume extraction mode, the water fume baffle (232) moves to such that the multiple fume inlets 1 (236) and multiple fume inlets 2 (236b) are all opposite to each other and connected. When in cleaning mode, the water fume baffle (232) moves to such that the multiple fume inlets 1 (236) and multiple fume inlets 2 (236b) are completely offset from each other and not connected. The inner wall (239) of the fume hood is also provided with a sewage outlet (220), which is connected to the sewage drain trough (238). The sewage outlet (220) can be opened or closed according to the cleaning status.

5. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 3, characterized in that: It also includes a slider (233), a lead screw (234), and a stepper motor (235). The slider (233) is connected to one side of the hookah baffle (232). The slider (233) is threaded onto the lead screw (234). The stepper motor (235) is connected to the lead screw (234) to drive the lead screw (234) to rotate, thereby driving the slider (233) to reciprocate along the axis of the lead screw (234), and thus driving the hookah baffle (232) to move on the boss (237).

6. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 5, characterized in that: There are at least two sliders (233), and at least two sliders (233) are connected between the hookah baffle (232) and the lead screw (234). The sliders, the lead screw (234) and the stepper motor (235) constitute at least part of the structure of the drive transmission mechanism. A set of the drive transmission mechanism is provided on one side of the hookah baffle (232) and a set of the drive transmission mechanism is provided on the other side.

7. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 1, characterized in that: The fume extraction module (200) also includes a fume filter (249) and a fume cleaning device (240). The fume cleaning device (240) is located between the upper end of the fume collection hood assembly (230) and the air conditioning module (100). The fume cleaning device (240) includes a water storage tank, a cleaning water inlet (210), and a spray pipe. The water storage tank can receive the condensate generated by the air conditioning module (100). The cleaning water inlet (210) can introduce external cleaning water into the water storage tank. The spray pipe is connected to the water storage tank. The other end of the spray pipe can extend to the bottom of the fume filter (249) to clean the fume filter (249).

8. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 7, characterized in that: The water spray pipe includes a short water spray pipe (246) and a long water spray pipe (248). The oil fume filter (249) is disposed in the oil fume channel of the oil fume extraction module (200) to filter the oil fumes flowing through the oil fume filter (249). The length of the short water spray pipe (246) is less than the length of the long water spray pipe (248). The short water spray pipe (246) can spray water in the water storage tank onto the oil fume filter (249) relatively close to the water storage tank. The long water spray pipe (248) can spray water in the water storage tank onto the entire lower surface of the oil fume filter (249).

9. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 8, characterized in that: When the system also includes the inner wall (239) of the fume hood and the water fume baffle (232), the water in the short spray pipe (246) and the long spray pipe (248) can also clean the upper surfaces of the fume duct, the inner wall (239) of the fume hood, and the water fume baffle (232). The indoor unit of the kitchen air conditioner has a daily cleaning mode and a periodic cleaning mode. When the system is in the daily cleaning mode, only the short spray pipe (246) can be turned on to spray water, and the long spray pipe (248) is turned off. When the system is in the periodic cleaning mode, both the short spray pipe (246) and the long spray pipe (248) can be turned on to spray water. There are multiple short spray pipes (246) and multiple long spray pipes (248).

10. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 7, characterized in that: The water storage tank includes a first water storage tank (247) and a second water storage tank (244). The first water storage tank (247) is located at the upper end of the second water storage tank (244) and is connected to the second water storage tank (244). The clean water inlet (210) is connected to the first water storage tank (247). The spray pipe is connected to the second water storage tank (244). A water pump (245) is also provided in the first water storage tank (247) so that the clean water in the first water storage tank (247) is drawn into the second water storage tank (244) and then sprayed out from the spray pipe.

11. The kitchen air conditioner indoor unit with self-cleaning and fume extraction functions according to claim 1, characterized in that: The air conditioning module (100) includes a refrigerant inlet (110), a refrigerant outlet (120), a heat exchanger (107), an air conditioning inlet filter (106), an air conditioning sweeping mechanism (130), an air conditioning fan assembly (150), and a housing. The fume extraction module (200) also includes a fume extraction fan assembly (260) and a flue gas outlet pipe (250). The refrigerant inlet (110), the refrigerant outlet (120), the air conditioning inlet filter (106), and the housing are all part of the air conditioning system. The air conditioning sweeping mechanism (130) is installed on the housing. The heat exchanger (107) and the air conditioning fan assembly (150) are installed inside the housing. The fume extraction fan assembly (260) is also installed inside the housing. The fume extraction fan assembly (260) and the air conditioning fan assembly (150) are arranged side by side. The flue gas outlet pipe (250) is installed on the housing and is connected to the air outlet of the fume extraction fan assembly (260). 12.A kitchen air conditioner, characterized by: The kitchen air conditioner indoor unit includes any one of claims 1-11 and has self-cleaning and fume extraction functions.

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