Range hood

Abstract

The invention discloses a range hood. The range hood comprises a water production module, the water production module comprises a refrigeration part and a condensation fin, the refrigeration part is connected with the condensation fin, and the refrigeration part is used for cooling the condensation fin so that condensed water can be formed on the condensation fin; the water box is used for collecting condensate water; and the steam washing device is communicated with the water box. According to the range hood, the temperature of the condensation fin can be reduced through the refrigeration part, so that condensed water can be formed on the condensation fin, water can be supplied to the water box by collecting the condensed water, manual water adding by a user is avoided or the frequency of manual water adding is reduced to a certain extent, the user operation is simplified, and the use convenience of the user is improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] In the related art, the range hood has a steam washing function, and the range hood with the steam washing function is equipped with a water box. However, the water box requires the user to manually add water frequently, which makes the user operation more complicated. Summary of the invention

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

[0004] A range hood according to an embodiment of the present invention comprises:

[0005] A water production module, the water production module comprises a refrigeration element and a condensation fin, the refrigeration element is connected to the condensation fin, and the refrigeration element is used to cool the condensation fin to form condensed water on the condensation fin;

[0006] A water box, the water box is used to collect the condensed water;

[0007] A steam washing device is connected to the water box.

[0008] In the above-mentioned range hood, the temperature of the condensing fins can be lowered by the refrigeration component, so that condensed water can be formed on the condensing fins. By collecting the condensed water, water can be supplied to the water box, which can avoid the user from manually adding water or reduce the number of manual water adding times to a certain extent, thereby improving the convenience of user use.

[0009] In certain embodiments, the refrigeration element includes a refrigeration surface and a heating surface, and the condensing fins are connected to the refrigeration surface.

[0010] In the above-mentioned range hood, condensed water can be formed when the outside air passes through the condensing fins, thereby improving the heat exchange efficiency to a certain extent.

[0011] In some embodiments, the water production module includes heat dissipation fins, and the heat dissipation fins are connected to the heating surface.

[0012] In the above-mentioned range hood, the heat dissipation fins increase the surface area of ​​the heating surface, so that the heat is released into the environment more quickly, thereby improving the cooling effect to a certain extent.

[0013] In some embodiments, the water production module includes a fan assembly, which includes an air duct and a fan, the air duct connects the condensing fins and the heat dissipation fins, and the fan is used to form an airflow from the condensing fins to the heat dissipation fins in the air duct when working.

[0014] In the above-mentioned range hood, the fan assembly can circulate air during the water production process, thereby promoting the condensation and heat dissipation process to a certain extent.

[0015] In some embodiments, the range hood includes an air intake channel and a filter, the air intake channel is provided with an air inlet and an air outlet, the filter is provided at the air inlet, and the air outlet is connected to a side of the condensing fin away from the air duct.

[0016] In the above-mentioned range hood, the filter can improve the quality of air entering the air duct to a certain extent, and the clean air helps to improve the efficiency of the condensation process and reduce impurities in the condensed water.

[0017] In some embodiments, the range hood includes a collecting component, the collecting component includes a box body and a heating component, the heating component includes a heating element, a accommodating space is provided in the box body, the accommodating space is used to accommodate water and / or grease, and the heating element is used to heat the grease to pyrolyze the grease and / or heat water to evaporate the water.

[0018] In the above-mentioned range hood, the water in the box body is evaporated by the heating element, and the user does not need to manually pour out the waste water generated during the steam washing process. At the same time, the grease is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the storage space to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, thereby improving kitchen hygiene to a certain extent.

[0019] In some embodiments, the collection assembly includes a thermal insulation member that covers a surface of the box body facing away from the receiving space.

[0020] In the above range hood, the high temperature in the box body can be prevented from being transferred to other parts of the range hood or scalding the user, while reducing heat loss and improving the heating efficiency to a certain extent.

[0021] In some embodiments, an evaporation hole is provided on the top of the box body, and the evaporation hole is communicated with the accommodating space.

[0022] In the above range hood, waste water generated by steam washing and grease in oil smoke can flow into the accommodation space through the evaporation hole, and at the same time, water vapor generated by water evaporation and gas generated by pyrolysis of grease can escape to the outside of the accommodation space through the evaporation hole.

[0023] In some embodiments, the collecting assembly includes a switch assembly, which is disposed on the box body and is used to open and close the evaporation hole when the heating element is turned on.

[0024] In some embodiments, the switch assembly is used to enable the evaporation hole to have a first opening area when the pressure of the accommodating space is greater than a first set pressure, and to enable the evaporation hole to have a second opening area when the pressure of the accommodating space is less than or equal to the first set pressure, and the first opening area is greater than the second opening area.

[0025] In the above range hood, the evaporation hole can be opened and closed by the switch assembly to meet the evaporation conditions of water and the thermal decomposition conditions of grease, so that the box body can be easily cleaned.

[0026] In some embodiments, a pressure relief hole is provided on the top of the box body, and the collection assembly includes a pressure relief valve, which is provided on the box body. The pressure relief valve is used to open the pressure relief hole when the pressure in the accommodating space is greater than a second set pressure and to close the pressure relief hole when the pressure in the accommodating space is less than or equal to the second set pressure.

[0027] In the above range hood, the pressure in the accommodating space can be controlled by the pressure relief valve and the pressure relief hole, thereby ensuring the safe and efficient operation of the range hood to a certain extent.

[0028] In some embodiments, the range hood includes a smoke collecting chamber, and the collecting assembly is detachably mounted in the smoke collecting chamber.

[0029] The above range hood is easy to clean and maintain regularly, which can keep the range hood clean and operate efficiently to a certain extent.

[0030] In some embodiments, the range hood includes a flue, and the collecting assembly can connect the flue to or disconnect it from the accommodating space.

[0031] In the above range hood, when the flue is connected to the containing space, water vapor and grease pyrolysis gas generated by heating in the containing space can escape from the inside of the range hood to the outside through the flue, thereby reducing the residual water and / or grease in the containing space of the box body to a certain extent.

[0032] Additional aspects and advantages of the embodiments of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 Schematic diagram of the structure of a range hood according to an embodiment of the present invention.

[0035] Description of main component reference numerals:

[0036] Box body -10, accommodating space -15, evaporation hole -18, switch assembly -20, wax motor -23, cover plate -26, smoke collecting chamber -30, air inlet channel -33, filter -36, flue -40, water box -50, steam washing device -60, nozzle -64, fan device -70, fan assembly -80, air duct -82, fan -84, air outlet channel -86, refrigeration component -90, condensing fins -94, heat dissipation fins -98, range hood -100. DETAILED DESCRIPTION

[0037] The 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 throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0042] See also Figure 1 The embodiment of the present invention provides a range hood 100. The range hood 100 includes a water making module, a water box 50 and a steam washing device 60. The water making module includes a refrigeration element 90 and a condensing fin 94. The refrigeration element 90 is connected to the condensing fin 94. The refrigeration element 90 is used to cool the condensing fin 94 so that condensed water is formed on the condensing fin 94. The water box 50 is used to collect condensed water. The steam washing device 60 is connected to the water box 50.

[0043] In the above-mentioned range hood, the temperature of the condensing fins 94 can be lowered by the refrigeration component 90, so that condensed water can be formed on the condensing fins 94. By collecting the condensed water, water can be supplied to the water box 50, which to a certain extent avoids the user from manually adding water or reduces the number of manual water adding times, thereby improving the convenience of user use.

[0044] Specifically, the range hood 100 is installed above the cooking area to absorb and discharge the oil smoke generated during the cooking process to keep the kitchen environment clean and comfortable. Optionally, the range hood 100 may include a smoke collecting chamber 30, a filter assembly, a fan device 70 and a flue 40. When the range hood 100 starts to work, the fan device 70 operates to form a negative pressure at the smoke collecting chamber 30, and the smoke collecting chamber 30 captures and concentrates the oil smoke generated during the cooking process, and guides the oil smoke into the filter assembly in the range hood 100 to remove grease and large particles in the oil smoke. The filtered oil smoke is accelerated by the fan device 70 to enter the flue 40 and is discharged outdoors.

[0045] In the related art, some range hoods are equipped with a steam washing function, which can use high-temperature steam to soften the oil stains on the turbine blades and oil net in the range hood, making it easier to clean. However, the existing steam washing function requires users to add water manually, which makes the user operation more cumbersome. In addition, the waste water generated during the steam washing process also needs to be manually poured out by the user, which is more troublesome.

[0046] In the implementation mode of the present invention, please combine Figure 1 The refrigeration element 90 is connected to the condensation fins 94, and the condensation fins 94 are used to increase the refrigeration area. The refrigeration element 90 is used to cool the condensation fins 94 so that condensed water is formed on the condensation fins 94. The condensed water formed after the water vapor in the outside air passes through the condensation fins 94 can be collected by the guide device and enter the water box 50. The steam cleaning device 60 can be arranged at the flue 40 of the range hood 100 and communicated with the water box 50. The range hood may include a water pump, which can pump the water in the water box 50 to the steam cleaning device 60, and the steam cleaning device 60 can heat water to generate steam for cleaning the internal components of the range hood 100.

[0047] Optionally, the steam cleaning device 60 is connected to a nozzle 64. The condensed water collected in the water box 50 can be provided to the steam cleaning device 60. When the steam cleaning device 60 is working, steam can be generated, and the steam is sprayed from the nozzle 64 onto the fan device 70 and / or other components to clean the oil stains on the fan device 70 and / or other components.

[0048] In summary, the water vapor in the outside air can be condensed into condensed water through the refrigeration component 90 and the condensing fins 94, and the condensed water can be collected by the water box 50 to supply water to the steam washing device 60, which to a certain extent avoids the user from manually adding water or reduces the number of manual water adding times, simplifies user operations, and improves user convenience.

[0049] In some embodiments, the refrigeration element 90 includes a refrigeration surface and a heating surface, and the condensing fins 94 are connected to the refrigeration surface.

[0050] In this way, condensed water can be formed when the outside air passes through the condensing fins 94, thereby improving the heat exchange efficiency to a certain extent.

[0051] Specifically, please combine Figure 1 In one embodiment, the cooling element 90 may be a semiconductor cooling sheet. The cooling element 90 has two surfaces, one is a cooling surface and the other is a heating surface. When current passes through the cooling element 90, due to the Peltier effect, the cold end of the cooling element 90 absorbs heat, causing the temperature of the cooling surface to decrease, thereby achieving a cooling effect. At the same time, heat is transferred from the cold end of the cooling element 90 to the hot end, and the heat at the hot end releases heat through the heating surface.

[0052] Please combine Figure 1 The condensing fins 94 are connected to the refrigeration surface of the refrigeration element 90 to increase the surface area of ​​the refrigeration surface, thereby improving the heat exchange efficiency to a certain extent and improving the refrigeration effect of the refrigeration element 90. When the cold end of the refrigeration element 90 absorbs heat, the temperature of the refrigeration surface decreases, and the temperature of the condensing fins 94 also decreases, causing the air temperature near the condensing fins 94 to also decrease. When the outside air passes through the condensing fins 94, the water vapor in the air will condense into water droplets due to the low temperature of the condensing fins 94. As the air flows, the water droplets on the condensing fins 94 will gradually increase and eventually form condensed water. The condensed water is collected into the water box 50 through the guide device for the steam washing function.

[0053] In some embodiments, the water production module includes heat dissipation fins 98, and the heat dissipation fins 98 are connected to the heating surface.

[0054] In this way, the heat dissipation fins 98 increase the surface area of ​​the heating surface, allowing the heat to be released into the environment more quickly, thereby improving the cooling effect to a certain extent.

[0055] Specifically, please combine Figure 1 The heat dissipation fins 98 are connected to the heating surface of the refrigeration fins 90 to increase the surface area of ​​the heating surface, thereby improving the heat exchange efficiency to a certain extent. When the condensing fins 94 condense the air to form condensed water, the heat is transferred from the cold end of the refrigeration element 90 to the hot end, and the heat at the hot end is released from the heating surface. The heat dissipation fins 98 transfer the heat to the air through their larger surface area.

[0056] In some embodiments, the water production module includes a fan assembly 80, which includes an air duct 82 and a fan 84. The air duct 82 connects the condensing fins 94 and the heat dissipation fins 98. The fan 84 is used to form an air flow from the condensing fins 94 to the heat dissipation fins 98 in the air duct 82 during operation.

[0057] In this way, the fan assembly 80 can circulate air during the water production process, promoting the condensation and heat dissipation process to a certain extent.

[0058] Specifically, please combine Figure 1The range hood 100 is provided with a fan assembly 80, and the fan assembly 80 includes an air duct 82 and a fan 84. The air duct 82 is used to connect the condensing fins 94 and the heat dissipation fins 98, and to a certain extent ensures that the air can flow in the air duct 82, thereby promoting the condensation and heat dissipation process. The fan 84 is used to form an airflow from the condensing fins 94 to the heat dissipation fins 98 in the air duct 82 during operation, and to a certain extent ensures that the air flow can be effectively promoted. On the one hand, it can accelerate the entry of humid air into the condensing fins 94 and increase the water production efficiency. On the other hand, the temperature of the air flowing out of the condensing fins 94 is relatively low, and the low-temperature air can flow to the heat dissipation fins 98, thereby improving the heat dissipation efficiency of the heat dissipation fins 98. In summary, the overall efficiency of the water production module can be improved.

[0059] When the water production module starts to work, the fan 84 is powered on and started, and an airflow is formed in the air duct 82 from the condensing fins 94 to the heat dissipation fins 98, so that the outside air flows from the condensing fins 94 to the heat dissipation fins 98. At the condensing fins 94, the water vapor in the air condenses into water droplets to form condensed water. The condensed air continues to flow to the heat dissipation fins 98, and the heat dissipation fins 98 dissipate the heat released during the condensation process into the environment through their larger surface area. Optionally, an air outlet channel 86 is provided on the fan 84, and the air outlet channel 86 is connected to the outside of the range hood 100, so that the air is discharged from the air duct 82 to the external environment, thereby forming an air circulation during the water production process. Therefore, the efficiency of the entire water production process can be improved to a certain extent.

[0060] Optionally, a water outlet is provided on the air duct 82 near the condensing fins 94, so that the condensed water formed on the condensing fins 94 can flow out smoothly through the water outlet and be guided by the guide device to flow into the water box 50 for collection and storage.

[0061] In some embodiments, the range hood 100 includes an air intake channel 33 and a filter 36 . The air intake channel 33 is provided with an air inlet and an air outlet. The filter 36 is provided at the air inlet. The air outlet is connected to a side of the condensing fin 94 away from the air duct 82 .

[0062] In this way, the filter 36 can improve the quality of air entering the air duct 82 to a certain extent, and the clean air helps to improve the efficiency of the condensation process and reduce impurities in the condensed water.

[0063] Specifically, please combine Figure 1The range hood 100 is provided with an air inlet channel 33, which is connected to the external environment of the range hood 100 and is used to introduce external air into the water making module so that the air can smoothly enter the condensing fins 94 and the air duct 82. The air inlet channel 33 is provided with an air inlet and an air outlet, and the external air enters the water making module through the air inlet and the air outlet in turn. The filter 36 is provided at the air inlet of the air inlet channel, and is used to filter the external air entering the water making module, remove dust and impurities in the air, and allow clean air to flow into the condensing fins 94, thereby improving the quality of air entering the air duct 82 to a certain extent. Clean air can reduce the accumulation of dirt on the condensing fins 94, improve the efficiency of the condensation process to a certain extent, and extend the service life of the condensing fins 94 to a certain extent.

[0064] When the water production module starts working, the fan 84 is powered on and started, and an airflow from the condensing fins 94 to the heat dissipation fins 98 is formed in the air duct 82. External air enters the air inlet channel 33 from the air inlet. When passing through the filter at the air inlet, the dust and impurities in the air are intercepted by the filter, and the clean air flows into the condensing fins 94. The clean air passes through the condensing fins 94, and the water vapor condenses into water droplets to form condensed water. The condensed air continues to flow to the heat dissipation fins 98, and the heat dissipation fins 98 dissipate the heat released during the condensation process into the environment through their larger surface area. The air is then discharged from the air duct 82 to the external environment through the air outlet channel 86 provided on the fan 84, thereby forming an air circulation during the water production process.

[0065] In some embodiments, the range hood 100 includes a collecting component, the collecting component includes a box body 10 and a heating component, the heating component includes a heating element, a receiving space 15 is provided in the box body 10, the receiving space is used to receive water and / or grease, and the heating element is used to heat the grease to pyrolyze the grease and / or heat the water to evaporate the water.

[0066] In this way, the water in the box body 10 is evaporated by the heating element, and the user does not need to manually pour out the waste water generated during the steam washing process. At the same time, the grease is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the containing space 15 to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, thereby improving kitchen hygiene to a certain extent.

[0067] Specifically, the range hood 100 is provided with a collection component for collecting grease in the oil smoke and waste water generated by steam washing. Figure 1The range hood 100 includes a steam cleaning device 60, a nozzle 64 and a water box 50, wherein the nozzle 64 and the water box 50 are respectively connected to the steam cleaning device 60 through pipes. The water box 50 can supply water to the steam cleaning device 60. When the steam cleaning device 60 is working, steam can be generated, and the steam is sprayed onto the fan assembly 70 by the nozzle 64 to clean the oil stains on the fan assembly 70, and the cleaned oil stains and water can flow into the accommodating space 15.

[0068] The collecting assembly includes a box body 10 and a heating assembly. The box body 10 is arranged below the range hood 100. A receiving space 15 is provided in the box body 10 for receiving water and / or grease generated when the range hood 100 is working. The range hood 100 also includes a heating assembly for treating waste water generated by steam washing and grease in oil smoke. The heating assembly includes a heating element for heating the water and / or grease in the receiving space. When the heating element starts to work, the temperature in the receiving space 15 of the box body 10 reaches the water evaporation temperature, so that the waste water generated by steam washing can evaporate into water vapor to easily escape to the outside of the box body 10, so that the user does not need to manually pour out the waste water in the oil collection box after the range hood 100 performs the steam washing function.

[0069] The heating element continues to work so that a high-temperature oxygen-deficient state is formed in the accommodation space 15, and the temperature in the accommodation space 15 reaches the temperature of grease pyrolysis, so that the grease pyrolysis produces gases including but not limited to water vapor, carbon dioxide, or other easily cleaned solid carbonized residues, and the gas produced by pyrolysis escapes to the outside of the box body 10, which reduces the grease remaining in the accommodation space 15 to a certain extent, and the substances formed after the grease pyrolysis are also easy to clean. The difficulty of cleaning the high-viscosity oil in the oil collection box is reduced.

[0070] Optionally, the heating element can directly heat and / or indirectly heat water and / or grease. The type of the heating element can be specifically defined according to actual conditions, and the present invention does not specifically limit this. In one example, the heating element can include an electric heating tube, an electric heating plate, or an electric heating film.

[0071] In some embodiments, the collection assembly includes a heat insulating member that covers a surface of the box body 10 facing away from the receiving space 15 .

[0072] In this way, the high temperature in the box body 10 can be prevented from being transferred to other components of the range hood 100 or scalding the user, while reducing heat loss and improving the heating efficiency to a certain extent.

[0073] Specifically, the collection assembly includes a heat insulating member. Optionally, the heat insulating member may cover the surface of the box body 10 facing away from the receiving space 15, so that the high temperature in the receiving space 15 will not be transferred to other components of the range hood 100 or burn the user, thereby preventing other components from being damaged by heat, extending the service life of the range hood 100 to a certain extent, and ensuring the safety of the user. At the same time, the heat insulating member can reduce the loss of heat in the box body 10, ensuring that the heat generated by the heating element is mainly used for heating water and / or grease, and will not be absorbed by the surrounding environment, thereby improving the heating efficiency to a certain extent.

[0074] Optionally, the heat insulating member is an integral structure with the box body 10, or the heat insulating member is fitted with the box body 10. The type of the heat insulating member can be specifically limited according to actual conditions, and the present invention does not specifically limit this. In one example, the heat insulating member may include heat insulating cotton, heat insulating foam or heat insulating board.

[0075] In some embodiments, an evaporation hole 18 is disposed on the top of the box body 10 , and the evaporation hole 18 is communicated with the accommodating space 15 .

[0076] In this way, water and / or grease can flow into the accommodation space 15 through the evaporation holes 18 , and at the same time, water vapor generated by evaporation of water and gas generated by pyrolysis of grease can escape to the outside of the accommodation space 15 through the evaporation holes 18 .

[0077] Specifically, after the range hood 100 performs the steam washing function, the cleaned oil and water will flow to the evaporation hole 18 provided at the top of the box body 10 through the guiding effect of the guide device, and then flow into the accommodation space 15 of the box body 10 through the evaporation hole 18. At the same time, the oil smoke sucked by the range hood 100 includes grease particles, which, after passing through the filter assembly in the range hood 100, will flow to the evaporation hole 18 provided at the top of the box body 10 through the guiding effect of the guide device inside the range hood 100, and then flow into the accommodation space 15 of the box body 10 through the evaporation hole 18.

[0078] When the range hood 100 is cleaning the box body 10, the heating element is powered on to heat the water and / or grease in the receiving space 15. When the temperature reaches the water evaporation temperature, the water can evaporate into water vapor and escape to the outside of the box body 10 through the evaporation hole 18. When the temperature reaches the grease pyrolysis temperature, the grease is pyrolyzed under high temperature and oxygen-deficient conditions to generate gases including but not limited to water vapor, carbon dioxide, etc., which escape to the outside of the box body 10 through the evaporation hole 18, or other solid carbonized residues for subsequent cleaning, which reduces the difficulty of cleaning the high-viscosity oil in the box body 10 to a certain extent and improves kitchen hygiene.

[0079] The number of evaporation holes 18 can be specifically limited according to actual conditions, and the present invention does not make any specific limitation on this. Figure 1, the number of the evaporation hole 18 is one.

[0080] It is understandable that, in other embodiments, the top of the box body 10 may be an opening, and the interior of the range hood 100 includes a component covering the top of the box body 10 , and the evaporation hole 18 is provided on the component.

[0081] In some embodiments, the collecting assembly includes a switch assembly 20, which is disposed on the box body 10, and the switch assembly 20 is used to open and close the evaporation hole 18 when the heating element is turned on.

[0082] In this way, the evaporation hole 18 can be opened and closed by the switch assembly 20 to meet the pyrolysis conditions of grease and the evaporation conditions of water, so that the box body 10 can be easily cleaned.

[0083] Specifically, please combine Figure 1 A switch assembly 20 is provided on the top of the box body 10, which is used to open and close the evaporation hole 18 when the heating element is turned on. After the range hood 100 performs the steam washing function, the waste water generated by the steam washing will flow to the evaporation hole 18 provided on the top of the box body 10 through the guiding effect of the guide device, and then flow into the accommodation space 15 of the box body 10 through the evaporation hole 18. When the range hood 100 is working to absorb oil smoke, the evaporation hole 18 is opened, and the grease in the oil smoke flows to the evaporation hole 18 through the guiding effect of the guide device inside the range hood 100, and then flows into the accommodation space 15 of the box body 10 through the evaporation hole 18.

[0084] Optionally, the range hood 100 includes a controller, a temperature sensor and a pressure sensor. The controller is electrically connected to the temperature sensor, the pressure sensor and the switch assembly 20. The temperature sensor is used to continuously monitor the temperature in the receiving space 15 of the box body 10 in real time, and the pressure sensor is used to continuously detect the pressure in the receiving space 15. When the range hood 100 performs cleaning of the box body 10, the heating element is powered on and turned on to heat the water and / or grease in the receiving space 15. Initially, the switch assembly 20 closes the evaporation hole 18, which can quickly increase the temperature in the box body 10. When the temperature reaches the water evaporation temperature, the switch assembly 20 opens the evaporation hole 18, and the water can evaporate into water vapor and escape to the outside of the box body 10 through the evaporation hole 18. The evaporation hole 18 is opened, so that the water in the receiving space 15 is completely evaporated. When the controller detects through the temperature sensor that the temperature in the receiving space 15 reaches the preset temperature in the range hood 100 (i.e., the temperature of grease pyrolysis), the controller controls the switch assembly 20 to close the evaporation hole 18, so that the receiving space 15 is in a closed state. Under high temperature and oxygen-deficient conditions, grease is pyrolyzed to produce gases including but not limited to water vapor, carbon dioxide, or other solid carbonized residues for subsequent cleaning. When the pressure sensor detects that the pressure in the accommodation space 15 reaches the preset pressure of the range hood 100, the controller controls the switch assembly 20 to open the evaporation hole 18, so that the gas generated by the pyrolysis of grease escapes through the evaporation hole 18 to the outside of the box body 10, so that the pressure in the accommodation space 15 drops to a safe range.

[0085] In summary, the evaporation hole 18 can be opened and closed by the switch assembly 20 to meet the evaporation conditions of water and the pyrolysis conditions of grease, thereby reducing the difficulty of cleaning high-viscosity oil in the cleaning box 10 to a certain extent and improving kitchen hygiene.

[0086] In one embodiment, please combine Figure 1 The switch assembly 20 may include a wax motor 23 and a cover plate 26 , which are located at the top of the box body 10 , and the wax motor 23 is connected to the cover plate 26 and can drive the cover plate 26 to open and close the evaporation hole 18 .

[0087] Optionally, the range hood 100 may include a controller, a temperature sensor, a pressure sensor and a heater, wherein the controller is electrically connected to the temperature sensor and the heater, and the heater is used to heat the wax motor 23. The wax motor 23 is provided with wax or other heat expansion materials, which expand when heated and contract when cooled.

[0088] When the temperature sensor detects that the temperature in the storage space 15 of the box body 10 reaches or exceeds the preset temperature (i.e., the temperature at which the grease is pyrolyzed), the controller controls the heater to heat the wax material in the wax motor 23. When the wax material is heated, the wax material expands, and this expansion pushes the cover plate 26 connected to the wax motor 23 to move, driving the cover plate 26 to close the evaporation hole 18, so that the storage space 15 is in a closed state. Grease is pyrolyzed under high temperature and oxygen-deficient conditions to produce gases including but not limited to water vapor, carbon dioxide, or other solid carbonized residues for subsequent cleaning.

[0089] When the pressure sensor detects that the pressure in the accommodating space 15 reaches the preset pressure of the range hood 100, the controller controls the heater to stop heating, so that the wax motor 23 is cooled. The wax material shrinks due to cooling, driving the cover plate 26 to open the evaporation hole 18, so that the gas generated by the pyrolysis of the oil escapes to the outside of the box body 10 through the evaporation hole 18, so that the pressure in the accommodating space 15 drops to a safe range.

[0090] It is understandable that, in other embodiments, the switch assembly 20 may include other driving devices for driving the cover plate 26 to move so as to open and close the evaporation hole 18 .

[0091] In some embodiments, the switch assembly 20 is used to enable the evaporation hole 18 to have a first opening area when the pressure of the accommodating space 15 is greater than the first set pressure, and to enable the evaporation hole 18 to have a second opening area when the pressure of the accommodating space 15 is less than or equal to the first set pressure, and the first opening area is greater than the second opening area.

[0092] In this way, the switch assembly 20 can adjust the opening area of ​​the evaporation hole 18 so that the pressure in the accommodating space 15 is maintained within a safe range.

[0093] Specifically, the switch assembly 20 can flexibly adjust the opening area of ​​the evaporation hole 18 according to the conditions of grease pyrolysis, water evaporation and pressure relief requirements, thereby improving the efficiency of heating and self-cleaning of the box body 10 to a certain extent. The opening area of ​​the evaporation hole 18 can vary within a range, and the opening area of ​​the evaporation hole 18 refers to the area of ​​the evaporation hole 18 that actually allows water vapor or gas to pass through. In one embodiment, the evaporation hole 18 can function as a pressure relief hole.

[0094] When the range hood 100 is operating to absorb oil fumes, the evaporation holes 18 can be fully opened so that the grease or wastewater generated by the steam washing function of the range hood 100 and the grease in the oil fumes can flow more smoothly to the evaporation holes 18 through the guiding effect of the guide device, and then flow into the accommodating space 15 of the box body 10 through the evaporation holes 18.

[0095] When the range hood 100 performs self-cleaning of the box body 10, the heating element is powered on and turned on to heat the water and / or grease in the receiving space 15. Initially, the switch assembly 20 closes the evaporation hole 18, which can quickly increase the temperature in the box body 10. When the temperature reaches the water evaporation temperature, the switch assembly 20 opens the steam hole 18, and the water can evaporate into water vapor and escape to the outside of the box body 10 through the evaporation hole 18, so that the water in the receiving space 15 is completely evaporated.

[0096] If the controller detects through the temperature sensor that the temperature in the storage space 15 reaches the preset temperature in the range hood 100 (i.e., the temperature of grease pyrolysis), the controller controls the switch assembly 20 to close or reduce the opening area of ​​the evaporation hole 18, that is, the evaporation hole 18 has a second opening area, so that the storage space 15 is in a closed state to a certain extent. Grease pyrolyzes under high temperature and oxygen-deficient conditions to produce gases including but not limited to water vapor, carbon dioxide, or other solid carbonized residues for subsequent cleaning. As the temperature increases, the pressure in the storage space 15 will rise. When the pressure in the storage space 15 is greater than the first set pressure, the controller controls the switch assembly 20 to open the evaporation hole 18, so that the evaporation hole 18 has the first opening area, thereby performing a pressure relief operation to reduce the pressure in the storage space 15 to a safe range.

[0097] The first opening area and the second opening area can be specifically limited according to actual needs, and the present invention does not make specific limitations on this.

[0098] In some embodiments, a pressure relief hole is provided on the top of the box body 10, and the collection assembly includes a pressure relief valve, which is provided on the box body 10. The pressure relief valve is used to open the pressure relief hole when the pressure in the accommodating space 15 is greater than the second set pressure and to close the pressure relief hole when the pressure in the accommodating space 15 is less than or equal to the second set pressure.

[0099] In this way, the pressure in the accommodating space 15 can be controlled by the pressure relief valve and the pressure relief hole, thereby ensuring the safe and efficient operation of the range hood 100 to a certain extent.

[0100] Specifically, a pressure relief hole may be provided on the top of the box body 10, and the collecting assembly includes a pressure relief valve. The pressure relief hole and the pressure relief valve cooperate with each other to control the pressure in the receiving space 15 of the box body 10. Initially, the pressure relief valve closes the pressure relief hole. When the range hood 100 performs self-cleaning of the box body 10, the heating element is powered on and turned on to heat the water and / or grease in the receiving space 15. If the controller detects through the temperature sensor that the temperature in the receiving space 15 reaches the preset temperature in the range hood 100 (i.e., the temperature of grease pyrolysis), the controller controls the switch assembly 20 to close the evaporation hole 18, so that the receiving space 15 is in a closed state, and the pressure in the receiving space 15 continues to increase.

[0101] When the pressure in the accommodation space 15 exceeds the second set pressure, the pressure relief valve will automatically open the pressure relief hole to reduce the pressure in the accommodation space 15 to a safe range. When the pressure is less than or equal to the second set pressure, the pressure relief valve will automatically close the pressure relief hole.

[0102] The second set pressure of the pressure relief valve is preset to ensure that the pressure in the accommodation space 15 is maintained within a safe range. The second set pressure value may be specifically defined by the design of the pressure relief valve, safety requirements, etc., and the present invention does not specifically limit this. Optionally, the pressure relief valve may include a gravity valve.

[0103] In some embodiments, the range hood 100 includes a smoke collecting chamber 30 , and the collecting assembly is detachably mounted in the smoke collecting chamber 30 .

[0104] In this way, regular cleaning and maintenance are facilitated, and the range hood 100 is kept clean and operates efficiently to a certain extent.

[0105] Specifically, please combine Figure 1 The range hood 100 includes a smoke collecting chamber 30, which is located at the front end of the range hood 100, just above the cooking area, and covers most of the cooking area. The smoke collecting chamber 30 is used to capture and concentrate the oil smoke generated during the cooking process, and guide the oil smoke into the range hood 100 to prevent the oil smoke from spreading to other areas of the kitchen. The box body 10 in the collection component can be detachably mounted on the lower end of the smoke collecting chamber 30 by means including but not limited to screws, buckles, spring clips, magnetic suction, etc., so that the collection component can be firmly kept in place when the range hood 100 is working normally, and can be easily removed when cleaning is required. The detachable design of the box body 10 is convenient for users to clean and maintain the collection component regularly. The present invention does not specifically limit the installation method of the box body 10.

[0106] Optionally, the cycle or time of cleaning the box body 10 can be preset in the range hood 100, so that the heating component can heat the cleaning box body 10 regularly and regularly, thereby increasing the cleaning and pouring oil cycle. When the cleaning cycle or time is reached, the range hood 100 will automatically remind the user to operate, and the reminder method may include but is not limited to signal reminders such as sound and light, or send a prompt message to the user's terminal to remind the user to clean the box body 10. The user's terminal includes but is not limited to mobile phones, tablet computers, personal computers, wearable smart devices, etc. In one example, the user can set the cycle of cleaning the box body 10 through a control panel or an application, for example, the user can choose to clean it once a week, monthly or quarterly. In one example, the user can set a specific cleaning time, for example, the user can choose to operate on a specific day of the week or a specific time of the day. Therefore, the cleaning cycle can be increased to a certain extent, reducing the frequency of users pouring water.

[0107] In some embodiments, the range hood 100 includes a flue 40 , and the collecting assembly can make the flue 40 communicate with or disconnect the accommodating space 15 .

[0108] In this way, when the flue 40 is connected to the containing space 15, the water vapor and the gas of grease pyrolysis generated by heating in the containing space 15 can escape from the inside of the range hood 100 to the outside through the flue 40, thereby reducing the residual water and / or grease in the containing space 15 of the box body 10 to a certain extent.

[0109] Specifically, please combine Figure 1 A flue 40 is provided at the upper end of the range hood 100 for guiding the fumes and steam generated during cooking to the outdoors, thereby keeping the kitchen clean and the air fresh.

[0110] After the range hood 100 performs the steam washing function, the waste water generated by the steam washing will flow to the evaporation hole 18 provided on the top of the box body 10 through the guiding effect of the guide device, and then flow into the accommodation space 15 of the box body 10 through the evaporation hole 18. During the operation of the range hood 100 to absorb oil smoke, the evaporation hole 18 is open. The grease in the oil smoke flows to the evaporation hole 18 through the guiding effect of the guide device inside the range hood 100, and then flows into the accommodation space 15 of the box body 10 through the evaporation hole 18.

[0111] When the range hood 100 performs self-cleaning of the box body 10, the heating element is powered on and turned on to heat the water and / or grease in the accommodation space 15. The evaporation hole 18 is opened, and the flue 40 is connected with the accommodation space 15. When the temperature reaches the water evaporation temperature, the waste water generated by the steam washing can be evaporated into water vapor, escaped to the flue 40 through the evaporation hole 18, and then escaped to the outside through the guiding function of the flue 40.

[0112] If the controller detects through the temperature sensor that the temperature in the accommodation space 15 reaches the preset temperature in the range hood 100 (i.e., the temperature at which the grease is pyrolyzed), the controller controls the switch assembly 20 to close the evaporation hole 18, so that the accommodation space 15 is in a closed state, and the flue 40 is not connected to the accommodation space 15. Under high temperature and oxygen-deficient conditions, the grease is pyrolyzed to produce gases including but not limited to water vapor, carbon dioxide, or other solid carbonized residues for subsequent cleaning.

[0113] If the controller detects through the pressure sensor that the pressure in the accommodation space 15 reaches the preset pressure of the range hood 100, the controller controls the switch assembly 20 to open the evaporation hole 18, and the flue 40 is now connected to the accommodation space 15. The gas generated by the pyrolysis of the grease escapes through the evaporation hole 18 to the flue 40, and then escapes to the outside through the guidance of the flue 40, so that the pressure in the accommodation space 15 is reduced to a safe range.

[0114] In summary, the water in the box body 10 is evaporated and released to the outside through the heating element, and the user does not need to manually pour out the waste water generated during the steam washing process. At the same time, the grease is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the storage space 15 to a certain extent.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0116] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A range hood, characterized in that: include: A water production module, the water production module comprises a refrigeration element and a condensation fin, the refrigeration element is connected to the condensation fin, and the refrigeration element is used to cool the condensation fin to form condensed water on the condensation fin; A water box, the water box is used to collect the condensed water; A steam washing device is connected to the water box.

2. The range hood according to claim 1, characterized in that: The refrigeration element comprises a refrigeration surface and a heating surface, and the condensing fins are connected to the refrigeration surface.

3. The range hood according to claim 2, characterized in that: The water production module comprises heat dissipation fins, and the heat dissipation fins are connected to the heating surface.

4. The range hood according to claim 3, characterized in that: The water production module includes a fan assembly, and the fan assembly includes an air duct and a fan. The air duct connects the condensing fins and the heat dissipation fins. The fan is used to form an airflow from the condensing fins to the heat dissipation fins in the air duct when working.

5. The range hood according to claim 4, characterized in that: The range hood comprises an air intake channel and a filter screen. The air intake channel is provided with an air inlet and an air outlet. The filter screen is arranged at the air inlet. The air outlet is connected to a side of the condensing fin away from the air duct.

6. The range hood according to claim 1, characterized in that: The range hood comprises a collecting assembly, which comprises a box body and a heating assembly, which comprises a heating element, a containing space is provided in the box body, the containing space is used to contain water and / or grease, and the heating element is used to heat the grease to pyrolyze the grease and / or heat water to evaporate the water.

7. The range hood according to claim 6, characterized in that: The collecting assembly comprises a heat insulating member, and the heat insulating member covers a surface of the box body facing away from the containing space.

8. The range hood according to claim 6, characterized in that: The top of the box body is provided with an evaporation hole, and the evaporation hole is communicated with the accommodating space.

9. The range hood according to claim 8, characterized in that: The collecting assembly comprises a switch assembly, which is arranged on the box body and is used to open and close the evaporation hole when the heating element is turned on.

10. The range hood according to claim 9, characterized in that: The switch assembly is used to enable the evaporation hole to have a first opening area when the pressure of the accommodating space is greater than a first set pressure, and to enable the evaporation hole to have a second opening area when the pressure of the accommodating space is less than or equal to the first set pressure, wherein the first opening area is greater than the second opening area.

11. The range hood according to claim 6, characterized in that: A pressure relief hole is provided on the top of the box body, and the collecting assembly includes a pressure relief valve, which is provided on the box body. The pressure relief valve is used to open the pressure relief hole when the pressure in the accommodating space is greater than a second set pressure, and to close the pressure relief hole when the pressure in the accommodating space is less than or equal to the second set pressure.

12. The range hood according to claim 6, characterized in that: The range hood comprises a smoke collecting chamber, and the collecting assembly is detachably mounted in the smoke collecting chamber.

13. The range hood according to claim 6, characterized in that: The range hood comprises a flue, and the collecting assembly can make the flue communicate with or disconnect from the accommodating space.

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