Collecting device and range hood

Abstract

The invention discloses a collecting device and a range hood. The collecting device is used for the range hood and comprises a box body and a heating assembly, the heating assembly comprises a heating piece, a containing space is formed in the box body and used for containing grease and / or water, and the heating piece is used for heating the grease to enable the grease to be pyrolyzed and / or heating the water to enable the water to be evaporated. According to the collecting device, the grease in the box body is heated through the heating piece, so that the grease is pyrolyzed, the grease remaining in the containing space is reduced to a certain degree, substances formed after the grease is pyrolyzed are easy to clean, kitchen sanitation is improved to a certain degree, water can be evaporated, and therefore a user does not need to manually pour water.

Description

Technical Field

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

[0002] At present, the range hood absorbs a large amount of oil smoke during operation, and the oil smoke will accumulate in the oil collection box. The oil smoke accumulated in the oil collection box will adhere to the oil collection box, which is not easy to clean and is easy to breed bacteria, produce odor, and affect kitchen hygiene. Summary of the invention

[0003] The embodiments of the present invention provide a collection device and a range hood to solve at least one of the above-mentioned technical problems.

[0004] A collecting device according to an embodiment of the present invention is used for a range hood. The collecting device includes a box body and a heating assembly. The heating assembly includes a heating element. A accommodating space is provided in the box body. The accommodating space is used to accommodate grease and / or water. The heating element is used to heat the grease to pyrolyze the grease and / or heat the water to evaporate the water.

[0005] In the above-mentioned collecting device, the grease in the box body is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the containing space to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, which improves the kitchen hygiene to a certain extent. The water can also be evaporated, so that the user does not need to pour the water manually.

[0006] In certain embodiments, the heating element is used to directly heat and / or indirectly heat the grease and / or water.

[0007] In some embodiments, the heating element comprises an electric heating pipe, and the electric heating pipe is located in the accommodating space to directly heat the grease and / or water;

[0008] The heating element comprises an electric heating plate, which is arranged at the bottom of the box body to indirectly heat the grease and / or water;

[0009] The heating element comprises an electric heating film, and the electric heating film is arranged on the surface of the box body facing away from the accommodating space to indirectly heat the grease and / or water.

[0010] In certain embodiments, the maximum heating temperature of the heating element is 1000°C.

[0011] In the above-mentioned collecting device, the grease and / or water remaining in the containing space can be reduced to a certain extent, and the box body can be easily cleaned.

[0012] In some embodiments, the collecting device includes a heat insulating member, and the heat insulating member covers a surface of the box body facing away from the containing space.

[0013] In some embodiments, the thermal insulation member and the box body are an integral structure, or the thermal insulation member is in close contact with the box body.

[0014] In the above-mentioned collecting device, 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.

[0015] 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.

[0016] In the above-mentioned collecting device, the grease in the oil smoke and the waste water generated by steam washing can flow into the containing space through the evaporation hole, and at the same time, the gas generated by the pyrolysis of the grease and the water vapor generated by the evaporation of water can escape to the outside of the containing space through the evaporation hole.

[0017] In some embodiments, the collecting device 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.

[0018] In certain embodiments, the switch assembly includes a wax motor and a cover plate, wherein the wax motor is connected to the cover plate, and the wax motor is used to drive the cover plate to move so as to open and close the evaporation hole.

[0019] 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.

[0020] In the above-mentioned collecting device, the evaporation hole can be opened and closed by the switch assembly to meet the pyrolysis conditions of the grease and the evaporation conditions of the water, so that the box body can be easily cleaned.

[0021] In some embodiments, a pressure relief hole is provided on the top of the box body, and the collecting device 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.

[0022] In the above-mentioned collecting device, 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.

[0023] An embodiment of the present invention provides a range hood, and the range hood includes the collection device described in any one of the above embodiments.

[0024] In the above-mentioned range hood, the grease in the box body is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the accommodating space to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, which improves the kitchen hygiene to a certain extent. The water can also be evaporated, so that the user does not need to pour the water manually.

[0025] In some embodiments, the range hood includes a smoke collecting chamber, and the collecting device is detachably mounted in the smoke collecting chamber.

[0026] 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.

[0027] In some embodiments, the range hood includes a flue, and the collecting device can connect the flue to or disconnect it from the accommodating space.

[0028] 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 grease and / or water in the containing space of the box body to a certain extent.

[0029] 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

[0030] 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:

[0031] Figure 1 Schematic diagram of the structure of a range hood according to an embodiment of the present invention.

[0032] Description of main component symbols:

[0033] Box body 10, accommodating space 15, evaporation hole 18, switch assembly 20, wax motor 23, cover plate 26, smoke collecting chamber 30, flue 40, water box 50, steam washing generator 60, nozzle 64, fan assembly 70, range hood 100. DETAILED DESCRIPTION

[0034] 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.

[0035] 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, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0036] 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.

[0037] 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.

[0038] 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 numbers 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.

[0039] See also Figure 1 The embodiment of the present invention provides a collection device. The collection device is used for a range hood 100. The collection device includes a box body 10 and a heating assembly, the heating assembly includes a heating element, a receiving space 15 is provided in the box body 10, the receiving space 15 is used to receive grease and / or water, and the heating element is used to heat the grease to pyrolyze the grease and / or heat the water to evaporate the water.

[0040] In the above-mentioned collecting device, the grease in the box body 10 is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the accommodating space 15 to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, which improves the kitchen hygiene to a certain extent. The water can also be evaporated, so that the user does not need to pour the water manually.

[0041] 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 assembly 70 and a flue 40. When the range hood 100 starts to work, the fan assembly 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 assembly 70 to enter the flue 40 and is discharged outdoors.

[0042] In the related art, a range hood absorbs a large amount of oil smoke during operation, and the oil smoke will accumulate in the oil collection box. The oil smoke accumulated in the oil collection box will adhere to the oil collection box, which is not easy to clean and is easy to breed bacteria, produce odor, and affect kitchen hygiene. At the same time, the waste water generated by the range hood with steam cleaning function after steam cleaning will also accumulate in the oil collection box. The user needs to disassemble the oil collection box and pour out the grease and waste water by himself to clean the oil collection box. The internal structure of the oil collection box is relatively complicated, which is easy to hide dirt and is more troublesome to clean.

[0043] In the embodiment of the present invention, the range hood 100 is provided with a collection device for collecting grease in the oil smoke and waste water generated by steam washing. Figure 1 The range hood 100 includes a steam generator 60, a nozzle 64 and a water box 50, wherein the nozzle 64 and the water box 50 are respectively connected to the steam generator 60 through pipes. The water box 50 can supply water to the steam generator 60. When the steam generator 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.

[0044] The collecting device includes a box body 10 and a heating assembly. The box body 10 is arranged below the range hood 100. A storage space 15 is provided in the box body 10 for storing grease and / or water generated when the range hood 100 is working. The range hood 100 also includes a heating assembly for treating grease in the oil smoke and waste water generated by steam washing. The heating assembly includes a heating element for heating grease to pyrolyze the grease and evaporate water. When the heating element starts to work, when the temperature in the storage space 15 of the box body 10 reaches the water evaporation temperature, 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.

[0045] The heating element continues to work so that a high-temperature, oxygen-deficient state is formed in the containing space 15, and the temperature in the containing space 15 reaches the temperature for grease pyrolysis, so that the grease pyrolysis produces gases including but not limited to water vapor, carbon dioxide, or other easily cleanable solid carbonized residues, and the gases produced by the pyrolysis escape to the outside of the box body 10, thereby reducing the grease remaining in the containing space 15 to a certain extent, and the substances formed after the grease pyrolysis are also easy to clean, thereby reducing the difficulty of cleaning the high-viscosity oil in the oil collecting box.

[0046] In summary, the heating element heats the grease and / or water in the box body 10, causing the grease to pyrolyze and / or the water to evaporate, thereby reducing the difficulty of cleaning the high-viscosity oil in the box body 10 to a certain extent, and allowing the user to avoid manually pouring water, thereby improving kitchen hygiene to a certain extent.

[0047] In certain embodiments, the heating element is used to directly heat and / or indirectly heat the grease and / or water.

[0048] In this way, the grease and / or water remaining in the accommodating space 15 can be reduced to a certain extent, and the box body 10 can be easily cleaned.

[0049] Specifically, the heating component is used to process the grease and wastewater collected in the collection device. The heating component includes a heating element for directly heating and / or indirectly heating the grease and / or water. In one embodiment, the heating element is located in the accommodating space 15 of the box body 10 and is in direct contact with the grease and / or water to directly heat the grease and / or water. When the heating element starts to work, the heat generated by the heating element is directly transferred to the grease and / or water. When the temperature reaches the evaporation temperature of water, the water can evaporate into water vapor and escape to the outside of the box body 10. When the temperature reaches the temperature for pyrolysis of grease, the grease is pyrolyzed under high temperature and oxygen-deficient conditions to produce gases including but not limited to water vapor, carbon dioxide, etc., which escape to the outside of the box body 10, or other easy-to-clean solid carbonized residues are left for subsequent cleaning, which reduces the difficulty of cleaning the high-viscosity oil in the cleaning box body 10 to a certain extent.

[0050] In one embodiment, the heating element is located on the surface of the box body 10 away from the receiving space 15, and indirectly heats the grease and / or water by heat conduction. When the heating element starts to work, the heat generated by the heating element is transferred to the grease and / or water by heat conduction. When the temperature reaches the evaporation temperature of water, the water can evaporate into water vapor and escape to the outside of the box body 10. When the temperature in the receiving space 15 reaches the temperature for pyrolysis of grease, the grease is pyrolyzed under high temperature and oxygen-deficient conditions to produce gases including but not limited to water vapor, carbon dioxide, etc., which escape to the outside of the box body 10, or other easy-to-clean solid carbonized residues are left for subsequent cleaning, which reduces the difficulty of cleaning the high-viscosity oil in the box body 10 to a certain extent.

[0051] In some embodiments, the heating element includes an electric heating tube, which is located in the accommodating space 15 to directly heat the grease and / or water; the heating element includes an electric heating plate, which is arranged at the bottom of the box body 10 to indirectly heat the grease and / or water; the heating element includes an electric heating film, which is arranged on the surface of the box body 10 away from the accommodating space 15 to indirectly heat the grease and / or water.

[0052] In this way, the grease and / or water remaining in the accommodating space 15 can be reduced to a certain extent, and the box body 10 can be easily cleaned.

[0053] Specifically, in one embodiment, the heating element includes an electric heating pipe, which is located in the accommodating space 15 and directly contacts the grease and / or water in the accommodating space 15. The electric heating pipe generates heat through the resistance effect of the current. When the current passes through the electric heating pipe, the resistance material in the electric heating pipe generates heat, thereby heating the electric heating pipe itself. Since the electric heating pipe directly contacts the grease and / or water, direct heating of the grease and / or water can be achieved.

[0054] When the user turns on the self-cleaning function of the box body 10 of the range hood 100, the power supply will supply power to the electric heating tube, and the current will pass through the electric heating tube to cause the resistance material in the electric heating tube to generate heat. The electric heating tube heats up rapidly due to the resistance effect, and the heated electric heating tube directly contacts the grease and / or water, transferring the heat to the grease and / or water. After the grease and / or water in the accommodating space 15 absorbs heat, the temperature gradually rises, the grease begins to thermally decompose after reaching the pyrolysis temperature, and the water begins to evaporate after reaching the evaporation temperature. This reduces the grease and / or water remaining in the accommodating space 15 to a certain extent, making the box body 10 easy to clean.

[0055] In one embodiment, the heating element includes an electric heating plate, which is disposed at the bottom of the box body 10 and is not in direct contact with grease and / or water. The electric heating plate generates heat through the resistance effect of electric current. When the current passes through the electric heating plate, the resistance material in the electric heating plate generates heat. Since the electric heating plate does not directly contact grease and / or water, the grease and / or water is indirectly heated by heat conduction.

[0056] When the user turns on the self-cleaning function of the box body 10 of the range hood 100, the power supply will supply power to the electric heating plate, and the current will pass through the electric heating plate to cause the resistance material in the electric heating plate to generate heat. The electric heating plate will quickly heat up due to the resistance effect and transfer the heat to the grease and / or water through the bottom of the box body 10. The heat is gradually transferred to the grease and / or water by heat conduction. After the grease and / or water in the accommodating space 15 absorbs the heat, the temperature gradually rises. When the grease reaches the pyrolysis temperature, it begins to thermally decompose, and when the water reaches the evaporation temperature, it begins to evaporate. This reduces the grease and / or water remaining in the accommodating space 15 to a certain extent, making the box body 10 easy to clean.

[0057] In one embodiment, the heating element includes an electric heating film, which is disposed on the surface of the box body 10 away from the receiving space 15 and is not in direct contact with grease and / or water. The electric heating film generates heat through the resistance effect of electric current. When the current passes through the electric heating film, the conductive layer in the electric heating film generates heat, thereby heating the entire electric heating film. The electric heating film is closely attached to the surface of the box body 10 away from the receiving space 15, and to a certain extent, the grease and / or water in the receiving space 15 can be evenly heated.

[0058] When the user turns on the self-cleaning function of the box body 10 of the range hood 100, the power supply will supply power to the electric heating film, and the current will pass through the electric heating film to cause the conductive layer of the electric heating film to generate heat. The electric heating film quickly heats up due to the resistance effect to generate heat, and transfers the heat to the grease and / or water through the side wall of the box body 10, and the heat is gradually transferred to the grease and / or water by heat conduction. After the grease and / or water in the accommodating space 15 absorbs heat, the temperature gradually rises. When the grease reaches the pyrolysis temperature, it begins to thermally decompose, and when the water reaches the evaporation temperature, it begins to evaporate. This reduces the grease and / or water remaining in the accommodating space 15 to a certain extent, making the box body 10 easy to clean.

[0059] In certain embodiments, the maximum heating temperature of the heating element is 1000° C. (degrees Celsius).

[0060] In this way, the heating element can be heated to a desired temperature to pyrolyze the grease and evaporate the water.

[0061] Specifically, the design of the heating element allows the heating element to start heating from room temperature (such as about 25°C), and the maximum heating temperature is 1000°C, which enables the heating element to adapt to the actual needs of cleaning the box body 10 to a certain extent. The boiling point of water is 100°C (under standard atmospheric pressure). When the heating element reaches or exceeds this temperature, it can effectively evaporate the wastewater generated by the steam washing collected in the accommodating space 15. The pyrolysis temperature of grease under high temperature and oxygen-deficient conditions is 450°C to 500°C. When the heating element reaches this temperature range, it can effectively pyrolyze the grease collected in the accommodating space 15. At this pyrolysis temperature, the grease molecular chain breaks to form small molecular hydrocarbons, alcohols, aldehydes and other organic compounds, which can eventually form gases including but not limited to water vapor, carbon dioxide, or carbonize to form solid carbonaceous residues.

[0062] The set heating temperature of the heating element is pre-set in the control program of the range hood 100. When the user inputs the cleaning instruction of the box body 10 through the control panel, the heating element starts to work and gradually raises the temperature in the box body 10 to the set heating temperature range. When the temperature reaches or exceeds the boiling point of water, the water in the receiving space 15 begins to evaporate to form water vapor and escape to the outside of the box body 10, so that the user does not need to dump the waste water. As the temperature further increases, the grease in the receiving space 15 begins to pyrolyze, generating gases including but not limited to water vapor, carbon dioxide, etc., which escape to the outside of the box body 10, or other easy-to-clean solid carbonized residues are left for subsequent cleaning, which reduces the difficulty of cleaning the high-viscosity oil in the box body 10 to a certain extent.

[0063] The set heating temperature of the heating element can be specifically limited according to the evaporation conditions of water, the thermal decomposition conditions of oil and fat, safety requirements, etc., and the present invention does not make specific limitations on this.

[0064] In some embodiments, the collecting device includes a heat insulating member, which covers the surface of the box body 10 facing away from the receiving space 15.

[0065] 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.

[0066] Specifically, the collecting device includes a heat insulating member. Optionally, the heat insulating member may cover the surface of the box body 10 facing away from the accommodation space 15, so that the high temperature in the accommodation 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 the pyrolysis of grease, and will not be absorbed by the surrounding environment, thereby improving the heating efficiency to a certain extent.

[0067] In some embodiments, the thermal insulation member and the box body 10 are an integral structure, or the thermal insulation member and the box body 10 are in close contact with each other.

[0068] In this way, it plays a good heat insulation role to a certain extent.

[0069] Specifically, in one embodiment, the heat insulating member is an integral structure with the box body 10. Optionally, in one example, the box body 10 may include an inner liner and an outer liner, and a containing space 15 is provided in the inner liner for containing grease and / or water. The inner liner is located in the containing space provided in the outer liner, and the size of the outer liner is slightly larger than that of the inner liner, and a vacuum layer is formed between the inner liner and the outer liner. There is no air or other gas in the vacuum layer, so heat cannot be transferred through convection and conduction of gas molecules, thereby achieving a good heat insulation effect to a certain extent.

[0070] In one embodiment, the thermal insulation is fitted to the box body 10. The thermal insulation can be fixed on the surface of the box body 10 away from the accommodating space 15 by means including but not limited to screws, snaps, bonding, etc. Optionally, in one example, the thermal insulation may include thermal insulation cotton, which can be fitted to the surface of the box body 10 away from the accommodating space 15 by an adhesive. Since the thermal insulation cotton is composed of fine fibers (such as polyester fibers or glass fibers, etc.), there are a large number of air gaps between the fibers, which makes the heat conduction efficiency through the thermal insulation cotton very low. At the same time, the fiber surface of the thermal insulation cotton can reflect part of the heat and absorb part of the heat, further reducing the heat transfer. Therefore, a good thermal insulation effect is achieved to a certain extent. It is understandable that the thermal insulation can be a component that can play an insulating role, such as thermal insulation foam or thermal insulation board.

[0071] 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 .

[0072] In this way, the grease and water in the oil smoke can flow into the accommodation space 15 through the evaporation holes 18 , and at the same time, the gas generated by the pyrolysis of the grease and the water vapor generated by the evaporation of water can escape to the outside of the accommodation space 15 through the evaporation holes 18 .

[0073] Specifically, when the range hood 100 is working to absorb oil smoke, 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 holes 18 provided at the top of the box body 10 through the guidance of the guide plate inside the range hood 100, and then flow into the accommodation space 15 of the box body 10 through the evaporation holes 18. When the range hood 100 performs the steam washing function, water will flow to the evaporation holes 18 provided at the top of the box body 10 through the guidance of the guide plate, and then flow into the accommodation space 15 of the box body 10 through the evaporation holes 18.

[0074] When the range hood 100 is cleaning the box body 10, the heating element is powered on to heat the grease and / or water 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.

[0075] 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.

[0076] 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.

[0077] In some embodiments, the collecting device includes a switch assembly 20, which is disposed on the box body 10. The switch assembly 20 is used to open and close the evaporation hole 18 when the heating element is turned on.

[0078] 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.

[0079] Specifically, please combine Figure 1A 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. 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 guidance of the guide plate inside the range hood 100, and then flows into the accommodation space 15 of the box body 10 through the evaporation hole 18. When 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 guidance of the guide plate, and then flow into the accommodation space 15 of the box body 10 through the evaporation hole 18.

[0080] 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 work on the box body 10, the heating element is powered on and turned on to heat the grease and / or water 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.

[0081] In summary, 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, thereby reducing the difficulty of cleaning high-viscosity oil in the cleaning box 10 to a certain extent and improving kitchen hygiene.

[0082] In some embodiments, the switch assembly 20 includes a wax motor 23 and a cover plate 26 . The wax motor 23 is connected to the cover plate 26 . The wax motor 23 is used to drive the cover plate 26 to move so as to open and close the evaporation hole 18 .

[0083] In this way, the evaporation hole 18 can be opened and closed through the interaction between the wax motor 23 and the cover plate 26 to meet the pyrolysis conditions of the grease and the evaporation conditions of the water, so that the box body 10 can be easily cleaned.

[0084] Specifically, 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 .

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 .

[0089] 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.

[0090] 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.

[0091] 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 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.

[0092] When the range hood 100 is operating to absorb oil fumes, the evaporation holes 18 can be fully opened so that the grease in the oil fumes and the grease or waste water generated by the steam washing function of the range hood 100 can flow more smoothly to the evaporation holes 18 through the guiding effect of the guide plate, and then flow into the accommodating space 15 of the box body 10 through the evaporation holes 18.

[0093] When the range hood 100 is cleaning the box body 10, the heating element is powered on and turned on to heat the grease and / or water in the receiving space 15. Initially, the switch assembly 20 closes the evaporation hole 18, so that the temperature in the box body 10 can be quickly increased. 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.

[0094] 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.

[0095] 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.

[0096] In some embodiments, a pressure relief hole is provided on the top of the box body 10, and the collecting device 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.

[0097] 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.

[0098] Specifically, a pressure relief hole may be provided on the top of the box body 10, and the collecting device 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 is cleaning the box body 10, the heating element is powered on and turned on to heat the grease and / or water 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.

[0099] 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.

[0100] 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.

[0101] An embodiment of the present invention provides a range hood 100, and the range hood 100 includes a collecting device according to any one of the above embodiments.

[0102] In the above-mentioned range hood 100, the grease in the box body 10 is heated by the heating element to thermally decompose the grease, thereby reducing the grease remaining in the accommodating space 15 to a certain extent. The substance formed after the thermal decomposition of the grease is also easy to clean, which improves the kitchen hygiene to a certain extent. The water can also be evaporated, so that the user does not need to pour the water manually.

[0103] Specifically, the range hood 100 is installed above the cooking area to absorb and discharge the fumes generated during the cooking process to keep the kitchen environment clean and comfortable. The collecting device is arranged at the bottom of the range hood 100 to collect the grease in the fumes and the waste water generated by the steam washing. The range hood 100 also includes a heating component for processing the grease in the fumes and the waste water generated by the steam washing. The heating component includes a heating element for heating the grease to pyrolyze the grease and evaporate the water. Therefore, the difficulty of cleaning the high-viscosity oil in the cleaning box 10 is reduced to a certain extent, and the user does not need to manually pour water after the range hood 100 performs the steam washing function, thereby improving the kitchen hygiene to a certain extent.

[0104] In some embodiments, the range hood 100 includes a smoke collecting chamber 30 , and the collecting device is detachably mounted in the smoke collecting chamber 30 .

[0105] This makes it easier to clean and maintain the range hood regularly, keeping it clean and running efficiently to a certain extent.

[0106] 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 device 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 device 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 device regularly. The present invention does not specifically limit the installation method of the box body 10.

[0107] 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 oil.

[0108] The box body 10 can be electrically connected to the range hood 100 in the form of a plug and socket, a contact or a wired connection. In one embodiment, the box body 10 is provided with a plug, and the range hood 100 is provided with a socket, and the box body 10 can be inserted into the socket in the range hood 100 through the plug to achieve a stable electrical connection. In one embodiment, the box body 10 and the range hood 100 are provided with corresponding metal contacts, and the metal contacts may be made of metal materials including but not limited to copper, copper alloy, etc. The box body 10 and the range hood 100 are in direct contact through metal contacts to achieve a stable electrical connection. In one embodiment, the box body 10 is provided with an electric wire, one end of the electric wire is connected to the box body 10, and the other end is connected to the smoke collecting chamber 30.

[0109] The electrical connection form between the box body 10 and the range hood 100 can be specifically limited according to actual conditions, and the present invention does not make any specific limitation on this.

[0110] In some embodiments, the range hood 100 includes a flue 40 , and the collecting device can make the flue 40 communicate with or disconnect the accommodating space 15 .

[0111] In this way, when the flue 40 is connected to the storage space 15, the water vapor and the gas from the pyrolysis of oil generated by heating in the storage space 15 can escape from the inside of the range hood 100 to the outside through the flue 40, thereby reducing the residual oil and / or water in the storage space 15 of the box body 10 to a certain extent.

[0112] 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.

[0113] When the range hood 100 is working to absorb oil smoke, the evaporation hole 18 is open. The grease in the oil smoke flows to the evaporation hole 18 under the guidance of the guide plate inside the range hood 100, and then flows into the receiving space 15 of the box body 10 through the evaporation hole 18. When 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 under the guidance of the guide plate, and then flow into the receiving space 15 of the box body 10 through the evaporation hole 18.

[0114] When the range hood 100 is cleaning the box body 10, the heating element is powered on and turned on to heat the grease and / or water in the accommodation space 15. The evaporation hole 18 is opened, and the flue 40 is connected to 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.

[0115] 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.

[0116] 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.

[0117] In summary, the heating element heats the grease in the storage space 15, so that the gas generated by the pyrolysis of the grease can escape to the outside through the flue 40, thereby reducing the grease remaining in the storage space 15 to a certain extent. At the same time, the water vapor formed by the evaporation of water can escape through the flue 40, so that the user does not need to pour the water manually.

[0118] 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.

[0119] 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 collection device for a range hood, characterized in that: The collecting device comprises a box body and a heating assembly, wherein the heating assembly comprises a heating element, a containing space is provided in the box body, the containing space is used to contain grease and / or water, and the heating element is used to heat the grease to pyrolyze the grease and / or heat the water to evaporate the water.

2. The collecting device according to claim 1, characterized in that The heating element is used for directly heating and / or indirectly heating the grease and / or water.

3. The collecting device according to claim 2, characterized in that The heating element comprises an electric heating pipe, and the electric heating pipe is located in the accommodating space to directly heat the grease and / or water; The heating element comprises an electric heating plate, which is arranged at the bottom of the box body to indirectly heat the grease and / or water; The heating element comprises an electric heating film, and the electric heating film is arranged on the surface of the box body facing away from the accommodating space to indirectly heat the grease and / or water.

4. The collecting device according to any one of claims 1 to 3, characterized in that: The maximum heating temperature range of the heating element is 1000°C.

5. The collecting device according to claim 1, characterized in that: The collecting device comprises a heat insulating member, and the heat insulating member covers a surface of the box body facing away from the containing space.

6. The collecting device according to claim 5, characterized in that The heat insulating member and the box body are an integral structure, or the heat insulating member is in close contact with the box body.

7. The collecting device according to claim 1, 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.

8. The collecting device according to claim 7, characterized in that The collecting device 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.

9. The collecting device according to claim 8, characterized in that The switch assembly includes a wax motor and a cover plate, wherein the wax motor is connected to the cover plate and is used to drive the cover plate to move so as to open and close the evaporation hole.

10. The collecting device according to claim 8, 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 collecting device according to claim 1, characterized in that A pressure relief hole is provided on the top of the box body, and the collecting device 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. A range hood, characterized in that: Comprising the collecting device according to any one of claims 1-11.

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

14. The range hood according to claim 12, characterized in that: The range hood comprises a flue, and the collecting device can make the flue connected with or disconnected from the accommodating space.

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