Range hood

Abstract

The invention discloses a range hood, and relates to the technical field of lampblack treatment. The range hood comprises a range hood body, an oil cup and a filtering assembly, and the oil cup is installed at the bottom of the range hood body so as to receive oil dirt flowing down from the range hood body. The filter assembly is mounted at the opening of the oil cup and seals the opening so as to filter oil stains entering the oil cup, and a microbial filler layer is arranged in the oil cup so as to decompose the oil stains entering the oil cup from the filter assembly. Therefore, large particles in oil stains entering the oil cup can be filtered in advance through the filtering assembly, then hydrocarbon oil stains are treated through microorganisms in the microorganism filler layer, and carbon dioxide and water are generated from the oil stains, so that the oil cup is thoroughly cleaned under the condition that the oil cup does not need to be disassembled, and the user experience feeling is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil fume treatment, in particular to a range hood. Background Art

[0002] As an appliance for handling kitchen oil stains, range hoods are widely used in kitchen air cleaning. Considering the oil smoke generated during food cooking, as the range hood is used for a longer period of time, the oil stains will eventually accumulate in the oil cup of the range hood. Currently, dry cleaning, water cleaning, and steam cleaning are commonly used to clean the oil cup. However, they can only perform a simple oil treatment on the oil cup and cannot thoroughly clean the stubborn oil stains that have accumulated in the oil cup for a long time. As a result, users are required to regularly disassemble the oil cup and use detergent to clean it during the use of the range hood, which increases the user's cleaning workload. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a range hood that overcomes the above problems or at least partially solves the above problems.

[0004] The present invention provides a range hood, the range hood comprising:

[0005] Range hood body;

[0006] An oil cup, which is installed at the bottom of the range hood body to receive the oil stains flowing down from the range hood body;

[0007] A filter assembly is installed at the opening of the oil cup and covers the oil cup to filter the oil dirt entering the oil cup, and a microbial filler layer is provided in the oil cup to decompose the oil dirt entering the oil cup from the filter assembly.

[0008] An optional invention content is that the range hood further includes a culture dish, which is installed on the range hood body and connected to the oil cup pipeline to transport microorganisms into the oil cup.

[0009] An optional invention content is that the range hood also includes an electric heating element, which is installed on the outer bottom of the oil cup to heat the microbial filler layer.

[0010] An optional invention content, the oil cup is made of metal material.

[0011] An optional invention content is that the electric heating element forms surface contact with the outer bottom of the oil cup.

[0012] In an optional invention, the range hood further comprises a temperature control device disposed on one side of the oil cup, wherein the temperature control device comprises:

[0013] A temperature sensor is installed in the oil cup to detect the temperature of the microbial filler layer;

[0014] A controller is electrically connected to the temperature sensor and the electric heating element respectively, so as to control the operation of the electric heating element according to the temperature value detected by the temperature sensor.

[0015] An optional invention content, the range hood further includes an aeration device, and the aeration device is connected to the oil cup air path to introduce air outside the range hood body into the oil cup.

[0016] An optional invention content, the aeration device includes an air pump, the air outlet of the air pump is connected to the oil cup air path, and the air inlet of the air pump is connected to the external air path of the range hood body.

[0017] An optional invention content, the aeration device also includes a valve assembly, and the air inlet of the air pump and the air outlet of the air pump are respectively connected to the air circuit of the valve assembly, wherein, by adjusting the valve assembly, the air inlet of the air pump is connected to the oil cup air circuit, and the air outlet of the air pump is connected to the external air circuit of the range hood body, so as to discharge the air in the oil cup to the outside of the range hood body.

[0018] An optional invention content is that the filter assembly is detachably connected to the oil cup.

[0019] Compared with the prior art, the present invention includes a range hood body, an oil cup and a filter assembly, wherein the oil cup is installed at the bottom of the range hood body to receive the oil stains flowing down from the range hood body. The filter assembly is installed at the opening of the oil cup and covers the oil cup to filter the oil stains entering the oil cup, and a microbial filler layer is provided in the oil cup to decompose the oil stains entering the oil cup from the filter assembly. Thus, large particles in the oil stains entering the oil cup can be filtered in advance by the filter assembly, and then the hydrocarbon oil stains can be treated by the microorganisms in the microbial filler layer to generate carbon dioxide and water from the oil stains, thereby thoroughly cleaning the oil cup without disassembling the oil cup, thereby improving the user experience.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0022] In the attached picture:

[0023] Figure 1 is a structural schematic diagram of a range hood provided by an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a three-dimensional structure of an oil cup provided by an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of a cross-sectional structure of an oil cup provided by an embodiment of the present invention;

[0026] Figure 4 is a gas circuit circulation diagram of a valve assembly provided by an embodiment of the present invention when it is in a first working state;

[0027] Figure 5 is a gas circuit circulation diagram of a valve assembly provided by an embodiment of the present invention when it is in a second working state;

[0028] Figure 6 is a structural schematic diagram of a control circuit provided by an embodiment of the present invention;

[0029] Figure numerals: 1. range hood body; 2. oil cup; 21. microbial filler layer; 3. filter assembly; 4. culture dish; 5. electric heating element; 6. temperature control device; 61. temperature sensor; 62. controller; 7. aeration device; 71. air pump; 72. valve assembly. DETAILED DESCRIPTION

[0030] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0031] As an appliance for handling kitchen oil stains, range hoods are widely used in kitchen air cleaning. Considering the oil smoke generated during food cooking, as the use time increases, the oil stains will eventually accumulate in the oil cup of the range hood. Currently, dry cleaning, water cleaning, and steam cleaning are commonly used to clean the oil cup, which can only perform a simple oil treatment on the oil cup, but cannot thoroughly clean the stubborn oil stains that have accumulated in the oil cup for a long time. Therefore, during the use of the range hood, users are usually required to regularly disassemble the oil cup and use detergent to clean it, which increases the user's cleaning workload.

[0032] Based on the above technical problems, the present invention is proposed, and discloses a range hood, which may include a range hood body 1, an oil cup 2, and a filter assembly 3, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2, and the opening is sealed to filter the oil stains entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil stains entering the oil cup 2 from the filter assembly 3. Thus, large particles in the oil stains entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil stains can be processed by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil stains, so that the oil cup 2 can be thoroughly cleaned without disassembling the oil cup 2, thereby improving the user experience.

[0033] Reference Figure 1-5 The embodiment of the present invention provides a range hood, which may include a range hood body 1, an oil cup 2 and a filter assembly 3, wherein:

[0034] The oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil stains entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil stains entering the oil cup 2 from the filter assembly 3. Thus, the large particles in the oil stains entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil stains can be processed by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil stains, so that the oil cup 2 can be thoroughly cleaned without disassembling the oil cup 2, thereby improving the user experience.

[0035] In the embodiment of the present invention, the range hood body 1 is used to provide an assembly position for other related components of the range hood. For example, a smoke outlet is provided on the range hood body 1, and a receiving chamber is provided in the range hood body 1. A fan device for sucking oil smoke is provided in the receiving chamber. The receiving chamber is connected to the smoke outlet by an air path, and is also connected to the outside by an air path through a smoke pipe, so that the oil smoke in the kitchen area can be discharged to the outside air. A part of the oil stains accumulates in the receiving chamber and on the surface of the range hood body 1. And flows along the range hood body 1 into the oil cup 2. Therefore, the oil cup 2 can be installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the outer surface of the range hood body 1 and the receiving chamber.

[0036] In some embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by snap-fitting. For example, a snap-fitting groove is provided at the bottom of the range hood body 1, and snap-fitting parts are provided on both sides of the oil cup 2. The snap-fitting groove and the snap-fitting part cooperate to form a snap-fit ​​fixation between the oil cup 2 and the range hood body 1.

[0037] In other embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by bolts. For example, mounting holes are respectively provided on the range hood body 1 and on both sides of the oil cup 2. Bolts penetrate the mounting holes and cooperate with nuts to fix the oil cup 2 and the range hood body 1.

[0038] In some other embodiments, when the range hood body 1 is made of metal material, magnetic parts may be built into both sides of the oil cup 2, so that the magnetic parts and the range hood body 1 can be fixed by magnetic force. Those skilled in the art can determine the assembly method between the oil cup 2 and the range hood body 1 according to actual design requirements, and the above connection method is only an example, which does not constitute a limitation on the assembly method of the oil cup 2 and the range hood body 1.

[0039] The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil entering the oil cup 2. The filter assembly 3 can perform a preliminary treatment on the oil flowing into the oil cup 2. Under the action of the filter assembly 3, it can filter out large particles in the oil. For example, the large particles may include but are not limited to dust, fluff and other impurity particles agglomerated by the oil. As a result, the oil entering the oil cup 2 contains fewer impurities and is all flowing hydrocarbon oil.

[0040] The oil cup 2 is provided with a microbial filler layer 21 to decompose the hydrocarbon oil pollution entering the oil cup 2 from the filter component 3. That is, the hydrocarbon oil pollution is processed by the microorganisms included in the microbial filler layer 21, so as to decompose the hydrocarbon oil pollution into carbon dioxide and water. For example, the microorganisms in the microbial filler layer 21 may include but are not limited to oleophilic bacteria, Candida, etc. Thus, carbon dioxide and water can be discharged to the outside of the oil cup 2 through the filter aperture on the filter component 3. In this way, the oil cup 2 is thoroughly cleaned without disassembling the oil cup 2 and adding oil pollution cleaning agent, thereby improving the user experience.

[0041] In some embodiments, the filter assembly 3 includes at least a filter mesh, and those skilled in the art can determine the filter aperture on the filter mesh according to actual design requirements. For example, the filter aperture can be 80 mesh, 100 mesh, and 120 mesh, etc., and no further limitations are given here.

[0042] In summary, the embodiment of the present invention discloses a range hood, which may include a range hood body 1, an oil cup 2, and a filter assembly 3, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil stains entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil stains entering the oil cup 2 from the filter assembly 3. Thus, large particles in the oil stains entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil stains can be processed by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil stains, so that the oil cup 2 can be thoroughly cleaned without disassembling the oil cup 2, thereby improving the user experience.

[0043] An optional embodiment of the invention, referring to Figure 1 As shown, the range hood may include a range hood body 1, an oil cup 2, a filter assembly 3 and a culture dish 4, wherein the oil cup 2 is mounted at the bottom of the range hood body 1 to receive the oil stains flowing down from the range hood body 1. The filter assembly 3 is mounted at the opening of the oil cup 2 and forms a seal on the opening to filter the oil stains entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil stains entering the oil cup 2 from the filter assembly 3. Thus, large particles in the oil stains entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil stains can be processed by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil stains. The culture dish 4 is mounted on the range hood body 1 and is connected to the pipeline of the oil cup 2 to transport microorganisms into the oil cup 2.

[0044] In the embodiment of the present invention, the range hood body 1 is used to provide an assembly position for other related components of the range hood. For example, a smoke outlet is provided on the range hood body 1, and a receiving chamber is provided in the range hood body 1. A fan device for sucking oil smoke is provided in the receiving chamber. The receiving chamber is connected to the smoke outlet by an air path, and is also connected to the outside by an air path through a smoke pipe, so that the oil smoke in the kitchen area can be discharged to the outside air. A part of the oil stains accumulates in the receiving chamber and on the surface of the range hood body 1. And flows along the range hood body 1 into the oil cup 2. Therefore, the oil cup 2 can be installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the outer surface of the range hood body 1 and the receiving chamber.

[0045] In some embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by snap-fitting. For example, a snap-fitting groove is provided at the bottom of the range hood body 1, and snap-fitting parts are provided on both sides of the oil cup 2. The snap-fitting groove and the snap-fitting part cooperate to form a snap-fit ​​fixation between the oil cup 2 and the range hood body 1.

[0046] In other embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by bolts. For example, mounting holes are respectively provided on the range hood body 1 and on both sides of the oil cup 2. Bolts penetrate the mounting holes and cooperate with nuts to fix the oil cup 2 and the range hood body 1.

[0047] In some other embodiments, when the range hood body 1 is made of metal material, magnetic parts may be built into both sides of the oil cup 2, so that the magnetic parts and the range hood body 1 can be fixed by magnetic force. Those skilled in the art can determine the assembly method between the oil cup 2 and the range hood body 1 according to actual design requirements, and the above connection method is only an example, which does not constitute a limitation on the assembly method of the oil cup 2 and the range hood body 1.

[0048] The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil entering the oil cup 2. The filter assembly 3 can perform a preliminary treatment on the oil flowing into the oil cup 2. Under the action of the filter assembly 3, it can filter out large particles in the oil. For example, the large particles may include but are not limited to dust, fluff and other impurity particles agglomerated by the oil. As a result, the oil entering the oil cup 2 contains fewer impurities and is all flowing hydrocarbon oil.

[0049] The oil cup 2 is provided with a microbial filler layer 21 to decompose the hydrocarbon oil pollution entering the oil cup 2 from the filter component 3. That is, the hydrocarbon oil pollution is processed by the microorganisms included in the microbial filler layer 21, so as to decompose the hydrocarbon oil pollution into carbon dioxide and water. For example, the microorganisms in the microbial filler layer 21 may include but are not limited to oleophilic bacteria, Candida, etc. Thus, carbon dioxide and water can be discharged to the outside of the oil cup 2 through the filter aperture on the filter component 3. In this way, the oil cup 2 is thoroughly cleaned without disassembling the oil cup 2 and adding oil pollution cleaning agent, thereby improving the user experience.

[0050] In some embodiments, the filter assembly 3 includes at least a filter mesh, and those skilled in the art can determine the filter aperture on the filter mesh according to actual design requirements. For example, the filter aperture can be 80 mesh, 100 mesh, and 120 mesh, etc., and no further limitations are given here.

[0051] The culture dish 4 is used to accommodate microbial agents, which is installed on the range hood body 1 and is connected to the oil cup 2 through a pipeline. Therefore, when microorganisms need to be supplemented in the oil cup 2 or a new microbial filler layer 21 needs to be formed, the microbial agents in the culture dish 4 are transported to the oil cup 2 through the pipeline.

[0052] In some embodiments, a delivery valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by turning the delivery valve. In other embodiments, an electromagnetic valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by an electrical signal. Correspondingly, the culture dish 4 may be installed on the top of the range hood body 1, so that the height of the culture dish 4 is higher than the oil cup 2, so that when the pipeline is connected and the valve is open, the microbial inoculant in the culture dish 4 is delivered to the oil cup 2 under the action of gravity.

[0053] An optional embodiment of the invention, referring to Figure 1 , Figure 2 as well as Figure 3As shown, the range hood may include a range hood body 1, an oil cup 2, a filter assembly 3, a culture dish 4 and an electric heating element 5, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil dirt flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil dirt entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil dirt entering the oil cup 2 from the filter assembly 3. Thus, the large particles in the oil dirt entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil dirt can be treated by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil dirt. The culture dish 4 is installed on the range hood body 1 and is connected to the oil cup 2 pipeline to transport microorganisms into the oil cup 2. The electric heating element 5 is installed at the outer bottom of the oil cup 2 to heat the microbial filler layer 21.

[0054] In the embodiment of the present invention, the range hood body 1 is used to provide an assembly position for other related components of the range hood. For example, a smoke outlet is provided on the range hood body 1, and a receiving chamber is provided in the range hood body 1. A fan device for sucking oil smoke is provided in the receiving chamber. The receiving chamber is connected to the smoke outlet by an air path, and is also connected to the outside by an air path through a smoke pipe, so that the oil smoke in the kitchen area can be discharged to the outside air. A part of the oil stains accumulates in the receiving chamber and on the surface of the range hood body 1. And flows along the range hood body 1 into the oil cup 2. Therefore, the oil cup 2 can be installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the outer surface of the range hood body 1 and the receiving chamber.

[0055] In some embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by snap-fitting. For example, a snap-fitting groove is provided at the bottom of the range hood body 1, and snap-fitting parts are provided on both sides of the oil cup 2. The snap-fitting groove and the snap-fitting part cooperate to form a snap-fit ​​fixation between the oil cup 2 and the range hood body 1.

[0056] In other embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by bolts. For example, mounting holes are respectively provided on the range hood body 1 and on both sides of the oil cup 2. Bolts penetrate the mounting holes and cooperate with nuts to fix the oil cup 2 and the range hood body 1.

[0057] In some other embodiments, when the range hood body 1 is made of metal material, magnetic parts may be built into both sides of the oil cup 2, so that the magnetic parts and the range hood body 1 can be fixed by magnetic force. Those skilled in the art can determine the assembly method between the oil cup 2 and the range hood body 1 according to actual design requirements, and the above connection method is only an example, which does not constitute a limitation on the assembly method of the oil cup 2 and the range hood body 1.

[0058] The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil entering the oil cup 2. The filter assembly 3 can perform a preliminary treatment on the oil flowing into the oil cup 2. Under the action of the filter assembly 3, it can filter out large particles in the oil. For example, the large particles may include but are not limited to dust, fluff and other impurity particles agglomerated by the oil. As a result, the oil entering the oil cup 2 contains fewer impurities and is all flowing hydrocarbon oil.

[0059] The oil cup 2 is provided with a microbial filler layer 21 to decompose the hydrocarbon oil pollution entering the oil cup 2 from the filter component 3. That is, the hydrocarbon oil pollution is processed by the microorganisms included in the microbial filler layer 21, so as to decompose the hydrocarbon oil pollution into carbon dioxide and water. For example, the microorganisms in the microbial filler layer 21 may include but are not limited to oleophilic bacteria, Candida, etc. Thus, carbon dioxide and water can be discharged to the outside of the oil cup 2 through the filter aperture on the filter component 3. In this way, the oil cup 2 is thoroughly cleaned without disassembling the oil cup 2 and adding oil pollution cleaning agent, thereby improving the user experience.

[0060] In some embodiments, the filter assembly 3 includes at least a filter mesh, and those skilled in the art can determine the filter aperture on the filter mesh according to actual design requirements. For example, the filter aperture can be 80 mesh, 100 mesh, and 120 mesh, etc., and no further limitations are given here.

[0061] The culture dish 4 is used to accommodate microbial agents, which is installed on the range hood body 1 and is connected to the oil cup 2 through a pipeline. Therefore, when microorganisms need to be supplemented in the oil cup 2 or a new microbial filler layer 21 needs to be formed, the microbial agents in the culture dish 4 are transported to the oil cup 2 through the pipeline.

[0062] In some embodiments, a delivery valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by turning the delivery valve. In other embodiments, an electromagnetic valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by an electrical signal. Correspondingly, the culture dish 4 may be installed on the top of the range hood body 1, so that the height of the culture dish 4 is higher than the oil cup 2, so that when the pipeline is connected and the valve is open, the microbial inoculant in the culture dish 4 is delivered to the oil cup 2 under the action of gravity.

[0063] The electric heating element 5 refers to a component that converts electrical energy into thermal energy. For example, the electric heating element 5 can be a structure such as an electric heating tube or an electric heating plate. Those skilled in the art can determine the shape and material of the electric heating element 5 according to actual design requirements, and no further limitation is made here. The electric heating element 5 is installed on the outer bottom of the oil cup 2, so that when the electric heating element 5 is powered on and generates heat, the microbial filler layer 21 located in the oil cup 2 is heated. The heating element heats the microbial filler layer 21, so that the reproduction temperature of the microorganisms located in the microbial filler layer 21 reaches the optimal level, thereby improving the biological activity of the microorganisms and further improving the oil fume decomposition efficiency of the range hood.

[0064] In an optional embodiment of the invention, the oil cup 2 is made of metal material.

[0065] In the embodiment of the present invention, the metal material has certain structural strength and good heat transfer coefficient. The oil cup 2 made of the metal material can increase the temperature of the microbial filler layer 21 to the optimal reproduction temperature while saving electric energy.

[0066] In an optional embodiment of the invention, the electric heating element 5 forms surface contact with the outer bottom of the oil cup 2 .

[0067] In the embodiment of the present invention, the electric heating element 5 can be attached to the outer bottom of the oil cup 2, so that the electric heating element 5 forms a surface contact with the outer bottom of the oil cup 2. Therefore, when the electric heating element 5 is powered on to generate heat, heat can be conducted through the bottom of the oil cup 2 in surface contact with the electric heating element 5, and the heat can be directly transferred to the microbial filler layer 21 at the inner bottom of the oil cup 2. Thereby, the heat conduction efficiency of the electric heating element 5 can be further improved.

[0068] An optional embodiment of the invention, as shown in Figure 3, the range hood may include a range hood body 1, an oil cup 2, a filter assembly 3, a culture dish 4, an electric heating element 5 and a temperature control device 6, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil dirt flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil dirt entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil dirt entering the oil cup 2 from the filter assembly 3. Thus, the large particles in the oil dirt entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil dirt can be treated by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil dirt. The culture dish 4 is installed on the range hood body 1 and is connected to the pipeline of the oil cup 2 to transport microorganisms into the oil cup 2. The electric heating element 5 is installed at the outer bottom of the oil cup 2 to heat the microbial filler layer 21. The temperature control device is arranged at one side of the oil cup 2, wherein the temperature control device 6 may include a temperature sensor 61 and a controller 62, wherein the temperature sensor 61 is installed in the oil cup 2 to detect the temperature of the microbial filler layer 21. The controller 62 is electrically connected to the temperature sensor 61 and the electric heating element 5 respectively to control the operation of the electric heating element 5 according to the temperature value detected by the temperature sensor 61.

[0069] In the embodiment of the present invention, the range hood body 1 is used to provide an assembly position for other related components of the range hood. For example, a smoke outlet is provided on the range hood body 1, and a receiving chamber is provided in the range hood body 1. A fan device for sucking oil smoke is provided in the receiving chamber. The receiving chamber is connected to the smoke outlet by an air path, and is also connected to the outside by an air path through a smoke pipe, so that the oil smoke in the kitchen area can be discharged to the outside air. A part of the oil stains accumulates in the receiving chamber and on the surface of the range hood body 1. And flows along the range hood body 1 into the oil cup 2. Therefore, the oil cup 2 can be installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the outer surface of the range hood body 1 and the receiving chamber.

[0070] In some embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by snap-fitting. For example, a snap-fitting groove is provided at the bottom of the range hood body 1, and snap-fitting parts are provided on both sides of the oil cup 2. The snap-fitting groove and the snap-fitting part cooperate to form a snap-fit ​​fixation between the oil cup 2 and the range hood body 1.

[0071] In other embodiments, the oil cup 2 can be installed on the bottom of the range hood body 1 by bolts. For example, mounting holes are respectively provided on the range hood body 1 and on both sides of the oil cup 2. Bolts penetrate the mounting holes and cooperate with nuts to fix the oil cup 2 and the range hood body 1.

[0072] In some other embodiments, when the range hood body 1 is made of metal material, magnetic parts may be built into both sides of the oil cup 2, so that the magnetic parts and the range hood body 1 can be fixed by magnetic force. Those skilled in the art can determine the assembly method between the oil cup 2 and the range hood body 1 according to actual design requirements, and the above connection method is only an example, which does not constitute a limitation on the assembly method of the oil cup 2 and the range hood body 1.

[0073] The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil entering the oil cup 2. The filter assembly 3 can perform a preliminary treatment on the oil flowing into the oil cup 2. Under the action of the filter assembly 3, it can filter out large particles in the oil. For example, the large particles may include but are not limited to dust, fluff and other impurity particles agglomerated by the oil. As a result, the oil entering the oil cup 2 contains fewer impurities and is all flowing hydrocarbon oil.

[0074] The oil cup 2 is provided with a microbial filler layer 21 to decompose the hydrocarbon oil pollution entering the oil cup 2 from the filter component 3. That is, the hydrocarbon oil pollution is processed by the microorganisms included in the microbial filler layer 21, so as to decompose the hydrocarbon oil pollution into carbon dioxide and water. For example, the microorganisms in the microbial filler layer 21 may include but are not limited to oleophilic bacteria, Candida, etc. Thus, carbon dioxide and water can be discharged to the outside of the oil cup 2 through the filter aperture on the filter component 3. In this way, the oil cup 2 is thoroughly cleaned without disassembling the oil cup 2 and adding oil pollution cleaning agent, thereby improving the user experience.

[0075] In some embodiments, the filter assembly 3 includes at least a filter mesh, and those skilled in the art can determine the filter aperture on the filter mesh according to actual design requirements. For example, the filter aperture can be 80 mesh, 100 mesh, and 120 mesh, etc., and no further limitations are given here.

[0076] The culture dish 4 is used to accommodate microbial agents, which is installed on the range hood body 1 and is connected to the oil cup 2 through a pipeline. Therefore, when microorganisms need to be supplemented in the oil cup 2 or a new microbial filler layer 21 needs to be formed, the microbial agents in the culture dish 4 are transported to the oil cup 2 through the pipeline.

[0077] In some embodiments, a delivery valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by turning the delivery valve. In other embodiments, an electromagnetic valve may be provided on the pipeline, so that the pipeline between the oil cup 2 and the culture dish 4 can be controlled by an electrical signal. Correspondingly, the culture dish 4 may be installed on the top of the range hood body 1, so that the height of the culture dish 4 is higher than the oil cup 2, so that when the pipeline is connected and the valve is open, the microbial inoculant in the culture dish 4 is delivered to the oil cup 2 under the action of gravity.

[0078] The electric heating element 5 refers to a component that converts electrical energy into thermal energy. For example, the electric heating element 5 can be a structure such as an electric heating tube or an electric heating plate. Those skilled in the art can determine the shape and material of the electric heating element 5 according to actual design requirements, and no further limitation is made here. The electric heating element 5 is installed on the outer bottom of the oil cup 2, so that when the electric heating element 5 is powered on and generates heat, the microbial filler layer 21 located in the oil cup 2 is heated. The heating element heats the microbial filler layer 21, so that the reproduction temperature of the microorganisms located in the microbial filler layer 21 reaches the optimal level, thereby improving the biological activity of the microorganisms and further improving the oil fume decomposition efficiency of the range hood.

[0079] The temperature control device 6 adjusts the temperature of the microbial filler layer 21 by controlling the operation of the electric heating element 5. The temperature control device 6 may include a temperature sensor 61 and a controller 62. The temperature sensor 61 is installed in the oil cup 2, or the temperature sensor 61 extends into the microbial filler layer 21. The temperature sensor 61 is electrically connected to the controller 62. After detecting the temperature signal of the microbial filler layer 21, the temperature sensor 61 transmits the temperature signal to the controller 62. The controller 62 determines whether the current temperature in the oil cup 2 is in the optimal temperature range according to the temperature signal. The optimal temperature range includes the optimal reproduction temperature corresponding to the microorganisms in the microbial filler layer 21. For example, the optimal temperature range may be 323-360K (Kelvin temperature). When the detected temperature value is less than the lower limit temperature value corresponding to the optimal temperature range, or the detected temperature value is greater than the upper limit temperature value corresponding to the optimal temperature range, the working state of the electric heating element 5 electrically connected to the controller 62 is controlled by the controller 62.

[0080] In some embodiments, when the detected temperature value is less than the lower limit temperature value corresponding to the optimal temperature range, the controller 62 controls the electric heating element 5 to start working. In other embodiments, when the detected temperature value is greater than the upper limit temperature value corresponding to the optimal temperature range, the controller 62 controls the electric heating element 5 to stop working. Thus, the biological activity of the microorganisms in the microbial filler layer 21 can be maximized by the temperature control device 6, and the processing efficiency of oil smoke can be further improved.

[0081] In some optional inventive embodiments, reference is made to Figure 6 As shown, the controller 62 may include a control circuit, and the control circuit includes a first comparator A1, a second comparator A2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first transistor Q1, a second transistor Q2, and a contactor KM1. The electrical connection point between the first resistor R1 and the second resistor R2 is electrically connected to the negative input terminal of the first comparator A1, and the end of the first resistor R1 away from the second resistor R2 is coupled to the power supply VCC, thereby providing the first comparator A1 with a first reference voltage Vref1. The temperature value corresponding to the first reference voltage Vref1 may be the lower limit temperature value corresponding to the optimal temperature range. The electrical connection point between the third resistor R3 and the fourth resistor R4 is electrically connected to the negative input terminal of the second comparator A2, and the end of the third resistor R3 away from the fourth resistor R4 is coupled to the power supply VCC, thereby providing the second comparator A2 with a second reference voltage Vref2, and the temperature value corresponding to the second reference voltage Vref2 may be the upper limit temperature value corresponding to the optimal temperature range. The positive input terminal of the first comparator A1 and the positive input terminal of the second comparator A2 are respectively coupled to the temperature sensor 61 to obtain a sensing voltage value Vs corresponding to a sensing temperature value detected by the temperature sensor 61 .

[0082] The first transistor Q1 and the second transistor Q2 are both NPN (NPN type triode) tubes, the output end of the first comparator A1 is coupled to the base of the first transistor Q1, and the output end of the second comparator A2 is coupled to the base of the second transistor. The collector of the first transistor Q1 is coupled to the power supply VCC, and the emitter is coupled to the fifth resistor R5, the collector of the second transistor Q2 is coupled to the end of the fifth resistor R5 away from the first transistor Q1, and the emitter of the second transistor Q2 is coupled to the coil of the contactor KM1, and the end of the coil of the contactor KM1 away from the second transistor Q2 is coupled to the sixth resistor R6. Among them, the armature of the contactor KM1 is connected in series with the power supply VCC loop of the electric heating element 5. Therefore, when it is determined that the detected sensing temperature value is greater than the upper limit temperature value according to the sensing voltage value Vs, the contactor KM1 is electrically attracted to stop the heating element from working.

[0083] An optional embodiment of the invention, referring to Figure 3 As shown, the range hood may further include an aeration device 7 , and the aeration device 7 is connected to the oil cup 2 in an air path so as to introduce air outside the range hood body 1 into the oil cup 2 .

[0084] In the embodiment of the present invention, the range hood may further include an exposure device, which is used to increase the air circulation volume in the oil cup 2. The oil cup 2 is connected to the external air path of the range hood through the exposure device, so that the air outside the range hood body 1 can be introduced into the oil cup 2, thereby increasing the air circulation volume in the oil cup 2, further improving the biological activity of the microorganisms in the microbial filler layer 21, and further improving the treatment efficiency of oil pollution.

[0085] An optional embodiment of the invention, referring to Figure 4 and Figure 5As shown, the range hood may include a range hood body 1, an oil cup 2, a filter assembly 3, a culture dish 4, an electric heating element 5, a temperature control device 6 and an aeration device 7, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil dirt flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2 and forms a seal on the opening to filter the oil dirt entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil dirt entering the oil cup 2 from the filter assembly 3. Thus, the large particles in the oil dirt entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil dirt can be treated by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil dirt. The culture dish 4 is installed on the range hood body 1 and is connected to the oil cup 2 pipeline to transport microorganisms into the oil cup 2. The electric heating element 5 is installed at the outer bottom of the oil cup 2 to heat the microbial filler layer 21. The temperature control device is arranged on one side of the oil cup 2, wherein the temperature control device 6 may include a temperature sensor 61 and a controller 62, wherein the temperature sensor 61 is installed in the oil cup 2 to detect the temperature of the microbial filler layer 21. The controller 62 is electrically connected to the temperature sensor 61 and the electric heating element 5 respectively to control the operation of the electric heating element 5 according to the temperature value detected by the temperature sensor 61. The aeration device 7 includes an air pump 71, wherein the air outlet of the air pump 71 is in communication with the air path of the oil cup 2, and the air inlet of the air pump 71 is in communication with the external air path of the range hood body 1.

[0086] The embodiment of the present invention is different from the above-mentioned embodiment of the invention mainly in that the aeration device 7 can include at least an air pump 71, the air outlet of the air pump 71 is connected to the air path of the oil cup 2, and the air inlet of the air pump 71 is connected to the external air path of the range hood body 1, thereby increasing the air circulation volume in the oil cup 2. In some embodiments, the power supply circuit of the air pump 71 can be electrically connected to the controller 62, so that the controller 62 can control the stop and start of the air pump 71.

[0087] An optional embodiment of the invention, referring to Figure 4 and Figure 5 As shown, the aeration device 7 also includes a valve assembly 72, and the air inlet of the air pump 71 and the air outlet of the air pump 71 are respectively connected to the air circuit of the valve assembly 72, wherein, by adjusting the valve assembly 72, the air inlet of the air pump 71 is connected to the air circuit of the oil cup 2, and the air outlet of the air pump 71 is connected to the external air circuit of the range hood body 1, so as to discharge the air in the oil cup 2 to the outside of the range hood body 1.

[0088] In the embodiment of the present invention, the valve assembly 72 may include a two-position four-way solenoid valve, which may be electrically connected to the controller 62, so that the on and off of the two-position four-way solenoid valve may be controlled by the controller 62. Figure 4 and Figure 5 As shown, the four air circuit interfaces of the two-position four-way solenoid valve are respectively connected to the air inlet and air outlet of the air pump 71, the outside of the range hood body 1, and the air circuit of the oil cup 2. When the valve assembly 72 is in the first working state, the air outlet of the air pump 71 is connected to the air circuit of the oil cup 2, and the air inlet of the air pump 71 is connected to the external air circuit of the range hood body 1. Thus, the air outside the range hood body 1 can be introduced into the oil cup 2, thereby increasing the air circulation volume in the oil cup 2, further improving the biological activity of the microorganisms in the microbial filler layer 21, and further improving the treatment efficiency of oil pollution.

[0089] When the valve assembly 72 is in the second working state, the air inlet of the air pump 71 is connected to the air path of the oil cup 2, and the air outlet of the air pump 71 is connected to the external air path of the range hood body 1. Thus, the air in the oil cup 2 can be discharged to the outside of the range hood body 1, further improving the processing efficiency of oil pollution.

[0090] The first working state may be that the valve assembly 72 is powered on or off, and the second working state may be that the valve assembly 72 is powered off or on. Those skilled in the art may determine the specific valve assembly 72 according to actual design requirements, and no further limitations are made herein.

[0091] During the oil treatment process, the temperature in the oil cup 2 can be increased by the heating element, so that the water produced by the microorganisms decomposing the oil can evaporate faster. Then, the valve assembly 72 is adjusted to discharge the water vapor and carbon dioxide in the oil cup 2 to the outside of the oil cup 2 more quickly.

[0092] In some optional embodiments of the invention, the temperature control device 6 and the exposure device can be respectively installed at the two ends of the oil cup 2. This can achieve uniform weight distribution of the oil cup 2 and improve the connection stability between the oil cup 2 and the range hood body 1.

[0093] In an optional embodiment of the invention, the filter assembly 3 is detachably connected to the oil cup 2 .

[0094] In the embodiment of the present invention, the filter assembly 3 can be installed at the opening of the oil cup 2 by means of a snap connection. For example, a snap slot is provided at the opening of the oil cup 2, and a snap portion is provided on the side of the filter assembly 3. The snap slot and the snap portion cooperate to form a detachable connection between the oil cup 2 and the filter assembly 3. This makes it easier to replace the filter assembly 3 regularly.

[0095] In other embodiments, the filter assembly 3 can be installed on the opening of the oil cup 2 by using bolts. For example, assembly holes are respectively provided on the top of the oil cup 2 and the side of the filter assembly 3. Bolts penetrate the assembly holes and cooperate with nuts to form a detachable connection between the filter assembly 3 and the oil cup 2.

[0096] In some other embodiments, a mounting groove is provided on the top side of the oil cup 2, and the filter assembly 3 is embedded in the mounting groove and is clearance-matched with the oil cup 2, thereby forming a detachable connection between the filter assembly 3 and the oil cup 2. Those skilled in the art can determine the assembly method of the detachable connection between the oil cup 2 and the filter assembly 3 according to actual design requirements, and the above connection method is only an example, and does not constitute a limitation on the assembly method of the oil cup 2 and the filter assembly 3.

[0097] In summary, the embodiment of the present invention discloses a range hood, which may include a range hood body 1, an oil cup 2, and a filter assembly 3, wherein the oil cup 2 is installed at the bottom of the range hood body 1 to receive the oil stains flowing down from the range hood body 1. The filter assembly 3 is installed at the opening of the oil cup 2, and the opening is sealed to filter the oil stains entering the oil cup 2, and a microbial filler layer 21 is provided in the oil cup 2 to decompose the oil stains entering the oil cup 2 from the filter assembly 3. Thus, large particles in the oil stains entering the oil cup 2 can be filtered in advance by the filter assembly 3, and then the hydrocarbon oil stains can be processed by the microorganisms in the microbial filler layer 21 to generate carbon dioxide and water from the oil stains, so that the oil cup 2 can be thoroughly cleaned without disassembling the oil cup 2, reducing the cleaning workload of the user to clean the oil cup 2 and improving the user experience.

[0098] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0099] It is easy for a person skilled in the art to think that any combination of the above embodiments is feasible, so any combination of the above embodiments is an implementation scheme of the present invention. However, due to space limitations, this specification will not describe them in detail here.

[0100] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0101] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0102] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

Claims

1. A range hood, characterized in that: The range hood comprises: Range hood body (1); An oil cup (2), the oil cup (2) being mounted on the bottom of the range hood body (1) to receive oil stains flowing down from the range hood body (1); A filter assembly (3) is installed at the opening of the oil cup (2) and covers the oil cup (2) to filter the oil dirt entering the oil cup (2); and a microbial filler layer (21) is provided in the oil cup (2) to decompose the oil dirt entering the oil cup (2) from the filter assembly (3).

2. The range hood according to claim 1, characterized in that: The range hood further comprises a culture dish (4), which is mounted on the range hood body (1) and is connected to the oil cup (2) through a pipeline so as to transport microorganisms into the oil cup (2).

3. The range hood according to claim 1, characterized in that: The range hood further comprises an electric heating element (5), wherein the electric heating element (5) is installed on the outer bottom of the oil cup (2) to heat the microbial filler layer (21).

4. The range hood according to claim 3, characterized in that: The oil cup (2) is made of metal material.

5. The range hood according to claim 3, characterized in that: The electric heating element (5) forms surface contact with the outer bottom of the oil cup (2).

6. The range hood according to claim 3, characterized in that: The range hood further comprises a temperature control device (6) arranged on one side of the oil cup (2), wherein the temperature control device (6) comprises: A temperature sensor (61), wherein the temperature sensor (61) is installed in the oil cup (2) to detect the temperature of the microbial filler layer (21); A controller (62), wherein the controller (62) is electrically connected to the temperature sensor (61) and the electric heating element (5) respectively, so as to control the operation of the electric heating element (5) according to the temperature value detected by the temperature sensor (61).

7. The range hood according to claim 1, characterized in that: The range hood further comprises an aeration device (7), wherein the aeration device (7) is in air communication with the oil cup (2) so as to guide air outside the range hood body (1) into the oil cup (2).

8. The range hood according to claim 7, characterized in that: The aeration device (7) comprises an air pump (71), the air outlet of the air pump (71) being in communication with the air path of the oil cup (2), and the air inlet of the air pump (71) being in communication with the external air path of the range hood body (1).

9. The range hood according to claim 8, characterized in that: The aeration device (7) further comprises a valve assembly (72), wherein the air inlet of the air pump (71) and the air outlet of the air pump (71) are respectively connected to the air circuit of the valve assembly (72), wherein, by adjusting the valve assembly (72), the air inlet of the air pump (71) is connected to the air circuit of the oil cup (2), and the air outlet of the air pump (71) is connected to the external air circuit of the range hood body (1), so as to discharge the air in the oil cup (2) to the outside of the range hood body (1).

10. The range hood according to claim 1, characterized in that: The filter assembly (3) is detachably connected to the oil cup (2).

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