Cooking equipment and oil stain detection and cleaning method thereof

Abstract

The invention relates to cooking equipment and an oil stain detection and cleaning method thereof. The cooking equipment comprises an inner container and an oil stain detection assembly. The inner container comprises a hollow shell and a baffle connected to the shell, a hot air cavity is defined by the baffle and the shell, and the shell comprises a back plate which is used for limiting the hot air cavity and is arranged opposite to the baffle; the oil stain detection assembly comprises an identification part, a spraying pipe and a steam source connected to the spraying pipe, the spraying pipe is connected to the back plate and comprises a spraying opening which is located in the hot air cavity and faces the baffle, and the identification part faces the baffle and is used for shooting and analyzing the form and distribution of condensed liquid drops on the surface of the baffle. According to the scheme, by observing the form and distribution of the condensed liquid drops on the surface of the baffle, comparing the characteristics of the condensed liquid drops in different areas and recognizing the position, range and pollution level of the oil stains on the surface of the baffle according to the hydrophobicity of the oil stains, the problem that whether the oil stains exist on the surface of an existing baffle or not is observed invariably is solved.

Description

Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to cooking equipment and a method for detecting and cleaning grease therein. Background Art

[0002] Cooking equipment, such as steam ovens, usually uses radiant heat from electric heating elements to bake food. According to different needs of baked food, the temperature of the baking cooking device can generally be adjusted within the range of 50°C to 250°C. The back of the inner shell of the cooking device with baking function is provided with a hot air blower baffle, and the back of the hot air blower baffle is provided with a heating tube and a fan blade, so that the back of the hot air blower baffle forms a hot air cavity that circulates hot air with the cooking cavity.

[0003] During the operation of the cooking device, the oil stains generated in the cooking cavity will splash onto the hot air blower baffle. At the same time, the hot air blower baffle is also provided with an air outlet and an air inlet for hot air circulation. The oil stains can enter the back of the baffle through the air outlet and the air inlet, causing the oil stains to accumulate on the back of the hot air blower baffle. On the one hand, since the hot air blower baffle is usually fixedly connected to the inner pot, only the air outlet and the air inlet can observe the inside of the hot air blower baffle, causing the user to be unable to know whether the back of the baffle has accumulated oil stains in time, and also unable to clean the back of the baffle in time. In the long run, the accumulated oil stains will cause the inner pot of the cooking device to have problems such as odor. Summary of the invention

[0004] Based on this, it is necessary to provide a cooking device and a method for detecting and cleaning oil stains thereof in order to solve the problem that the oil stains on the back of the hot air blower baffle in the existing cooking device are difficult to observe.

[0005] A cooking device, comprising an inner pot and an oil stain detection component; the inner pot comprises an inner hollow shell and a baffle connected to the shell, the baffle and the shell enclose a hot air cavity, the shell comprises a back plate for defining the hot air cavity and arranged opposite to the baffle; the oil stain detection component comprises an identification member, an injection pipe and a steam source connected to the injection pipe, the injection pipe is connected to the back plate, and the injection pipe comprises a spray port located in the hot air cavity and arranged toward the baffle, the identification member is arranged toward the baffle and is used to photograph and analyze the morphology and distribution of condensed droplets on the surface of the baffle.

[0006] In one embodiment, there are multiple injection pipes, and the injection pipes are distributed in an array on the back plate.

[0007] In one of the embodiments, the end surface of the baffle plate facing the back plate includes a plurality of continuously distributed cleaning areas, and the injection pipes and the cleaning areas are arranged in one-to-one correspondence.

[0008] In one embodiment, the oil stain component includes a mesh plate located between the baffle and the back plate, the mesh plate includes a frame and a plurality of dividing strips connected to the frame and cross-arranged, the dividing strips and the frame together enclose a plurality of partition areas, each of the partition areas is connected to one of the injection pipes, and the partition areas are arranged one-to-one with the cleaning areas.

[0009] In one embodiment, the steam source can be selectively connected to the injection pipe, and the cooking equipment also includes a cooling source, in which a cooling fluid is provided, the cooling source is connected to and selectively connected to the injection pipe, and the injection pipe is selectively connected to the cooling source and the steam source.

[0010] In one embodiment, the steam source is selectively connected to the injection pipe, and the cooking device also includes a cleaning liquid source, which is connected to and selectively connected to the injection pipe, and the injection pipe is selectively connected to the cleaning liquid source and the steam source.

[0011] In one of the embodiments, the oil pollution detection component includes a movable connecting head, one end of which is selectively connected to the steam source, and the other end of which is connected to one of the injection pipes.

[0012] In one of the embodiments, the movable connecting head is slidably connected to the inner container, so that the movable connecting head can be selectively aligned with the injection pipe and communicated with the aligned injection pipe.

[0013] In one of the embodiments, the oil pollution detection component also includes a driving source and a moving plate, the driving source is connected to the moving plate and is used to drive the moving plate to move relative to the inner tank, and the moving connecting head is connected to the sliding.

[0014] In one of the embodiments, the movable plate is provided with a slide groove, the slide groove is arranged in a direction which is arranged at an angle to the moving direction of the movable plate, and the movable connecting head is partially inserted into the slide groove and is slidably connected with the slide groove.

[0015] In one of the embodiments, the movable connecting head is configured to be movable in two directions set at an angle, the number of the movable plates is two, and the slide groove arranged on one of the two movable plates is arranged along the moving direction of the other movable plate.

[0016] In one of the embodiments, the injection pipe is provided with a one-way valve, and the one-way valve is connected from the outside to the injection outlet in a one-way manner.

[0017] A method for detecting and cleaning oil stains on cooking equipment is applied to cooking equipment, wherein the cooking equipment comprises a baffle, an injection pipe arranged toward the baffle, and an identification member arranged toward the baffle, wherein the identification member is used to photograph and identify surface information of the baffle surface, and comprises the following steps: controlling the injection pipe to spray steam and / or water mist toward the baffle; controlling the identification member to photograph the morphology and distribution of condensed droplets on the baffle surface to obtain surface information, and determining the degree of oil stains on the baffle surface according to the surface information.

[0018] In one of the embodiments, the step of "controlling the injection pipe to spray steam and / or water mist toward the baffle" also includes the following steps: controlling the injection pipe to spray a cooling fluid toward the baffle to cool the baffle; controlling the injection pipe to spray steam and / or water mist toward the baffle, and waiting for the steam and / or water mist to condense into droplets on the surface of the baffle.

[0019] In one of the embodiments, in the step of "controlling the identification element to photograph the morphology and distribution of the condensation droplets on the baffle surface to obtain surface information, and determining the degree of oil contamination on the baffle surface based on the surface information", the following steps are also included: controlling the identification element to photograph the morphology of the condensation droplets on the baffle surface to obtain the volume of the condensation droplets; comparing the volume of the condensation droplets with a preset volume to determine the degree of oil contamination on the surface of the baffle corresponding to the area where the condensation droplets are located.

[0020] In one of the embodiments, the method further includes the following steps: controlling the spray pipe to spray cleaning liquid toward the baffle to clean the surface of the baffle.

[0021] The cooking device provided in the above scheme is provided with an injection pipe arranged toward the baffle, and the injection pipe is connected to a steam source, so that the steam in the steam source can be sprayed onto the surface of the baffle through the injection pipe, and droplets are formed by condensation of the steam sprayed onto the baffle surface when it is cooled. By providing an identification component, the morphology and distribution of the condensed droplets on the surface of the baffle are observed, and the characteristics of the condensed droplets in different areas are compared. According to the hydrophobicity of the oil stains, the location, range and pollution level of the oil stains on the baffle surface are identified, thereby solving the problem of constant observation of whether there is oil stains on the existing baffle surface, allowing the user to promptly understand whether oil stains have accumulated on the baffle surface so as to remind the user to clean it, providing a basis for cleaning the oily area on the back of the baffle, thereby solving the problem of the back of the baffle being difficult to observe and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional structure of a cooking device in one embodiment of the present application.

[0023] Figure 2 for Figure 1 Schematic diagram of partial structural breakdown of cooking equipment.

[0024] Figure 3 for Figure 2A front view of a portion of the cooking equipment.

[0025] Figure 4 for Figure 2 Schematic diagram of the structure of the oil pollution detection component.

[0026] Figure 5 for Figure 4 Schematic diagram of the rear view of the oil pollution detection component.

[0027] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure of the oil pollution detection component.

[0028] Description of reference numerals:

[0029] 100, cooking equipment; 110, liner; 111, housing; 1111, back plate; 112, baffle; 113, hot air chamber; 114, cooking chamber; 120, oil detection assembly; 121, spray pipe; 1211, spray outlet; 122, steam source; 123, grid plate; 1231, frame; 1232, partition bar; 1233, partition area; 124, cooling source; 125, cleaning liquid source; 126, mobile connector; 1261, spray head; 1262, nozzle; 1271, first driving source; 1281, first movable plate; 12811, first slide groove; 1272, second driving source; 1282, second movable plate; 12821, second slide groove; 129, one-way valve; 131, first fixed plate; 1311, first movable groove; 132, second fixed plate; 1321, second movable groove; 140, flow regulating element; 150, heating element; 160, fan; 170, pipeline. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0036] See also Figure 1 , Figure 1 The cross-sectional schematic diagram of a cooking device 100 in an embodiment of the present application is shown. The cooking device 100 provided in an embodiment of the present application may be an oven, a steam oven, or any other device having a cooking function. Figure 1 As shown, the cooking device 100 includes an inner pot 110, wherein the inner pot 110 includes an internally hollow shell 111 and a baffle 112 connected to the shell 111, the baffle 112 and the shell 111 enclose a hot air cavity 113, the baffle 112 and the shell 111 also enclose an open cooking cavity 114, the cooking cavity 114 and the hot air cavity 113 are respectively located on both sides of the baffle 112, the baffle 112 is provided with a vent connecting the cooking cavity 114 and the hot air cavity 113, the shell 111 includes a back plate 1111 for limiting the hot air cavity 113 and arranged opposite to the baffle 112, the back plate 1111 and the baffle 112 together enclose the hot air cavity 113. The cooking device 100 also includes a fan 160 and a heating element 150 located inside the hot air chamber 113, wherein the heating element 150 is located on the periphery of the fan 160 and is used to heat the air flow in the hot air chamber 113, and the fan 160 is used to drive the air flow circulation in the hot air chamber 113 and the cooking chamber 114.

[0037] The cooking device 100 also includes an oil stain detection component 120, which is combined with Figure 2 As shown, Figure 2 A schematic diagram of the exploded structure of a partial structure of a cooking device 100 in an embodiment of the present application is shown. The oil stain detection component 120 includes an identification member, an injection pipe 121 and a steam source 122 connected to the injection pipe 121. The injection pipe 121 is connected to the back plate 1111. In this embodiment, the back plate 1111 is provided with a through hole, and the injection pipe 121 passes through the through hole so that a portion of the injection pipe 121 is located in the hot air chamber 113. It should be noted that water mist can flow directly out of the steam source 122. In other embodiments, steam can also be directly generated inside the steam source 122. In some embodiments, the steam source 122 can generate a mixed fluid of steam and small-particle water mist. In the following, the steam source 122 directly generating steam is used as an example for explanation without limitation. In this embodiment, the steam source 122 is a steam generating device.

[0038] like Figure 3 As shown, the injection pipe 121 includes a spray port 1211 located in the hot air chamber 113 and disposed toward the baffle 112, and the fluid entering the injection pipe 121 is sprayed onto the surface of the baffle 112 through the spray port 121. Since the steam source 122 is connected to the injection pipe 121, the steam inside the steam source 122 can be sprayed onto the surface of the baffle 112 through the injection pipe 121. The steam sprayed onto the surface of the baffle 112 condenses when it is cold, and thus condenses to form droplets on the surface of the baffle 112. Since the surface of the baffle 112 with oil stains is usually hydrophobic, while the clean surface of the baffle 112 tends to be hydrophilic, which means that it is more difficult for water to adhere to and spread on the surface with oil stains, the formation process of condensed droplets is therefore different, so that: on the hydrophilic surface, the condensed droplets are often smaller and evenly distributed; on the hydrophobic surface, the condensed droplets are larger, and the distribution is more sparse and irregular. The identification element is arranged toward the baffle 112 and is used to photograph and analyze the morphology and distribution of condensed droplets on the surface of the baffle 112, so as to compare the characteristics of condensed droplets in different areas through the morphology and distribution of condensed droplets on the surface of the baffle 112, thereby identifying the location, range and pollution level of oil stains on the surface of the baffle 112.

[0039] In this embodiment, the identification component includes a shooting module and an image processing and analysis module, wherein the shooting module is used to shoot and record the formation process of steam condensation droplets in each grid of the grid plate 123, especially the size, distribution and shape of the droplets, and the image processing and analysis module is communicated with the shooting module. The image processing and analysis module is used to analyze the shape and distribution of the droplets by image processing technology, and compare the characteristics of condensation droplets in different areas, so as to identify the location and range of surface oil stains and the pollution level.

[0040] like Figures 4 to 6 As shown, in one embodiment, there are multiple injection pipes 121, and the injection pipes 121 are distributed in an array on the back plate 1111, so that the multiple injection pipes 121 correspond to different positions of the baffle 112 respectively, so that the fluid sprayed from the injection pipe 121 to the baffle 112 covers the surface of the baffle 112 more comprehensively and evenly.

[0041] In one of the embodiments, the end surface of the baffle 112 facing the back plate 1111 includes a plurality of continuously distributed cleaning areas, dividing the entire surface of the baffle 112 into a plurality of cleaning areas, so as to facilitate all-round oil pollution detection and cleaning of various areas of the baffle 112, and facilitate recording and cleaning of different oil pollution levels in different cleaning areas of the baffle 112. The injection pipe 121 and the cleaning area are arranged in a one-to-one correspondence, so that each injection pipe 121 corresponds to a cleaning area, so as to facilitate targeted cleaning of different oil pollution levels in different cleaning areas of the baffle 112.

[0042] like Figure 2 and Figure 3As shown, in one embodiment, the oil stain assembly includes a mesh plate 123 located between the baffle 112 and the back plate 1111, the mesh plate 123 includes a frame 1231 and a plurality of dividing strips 1232 connected to the frame 1231 and arranged crosswise, the dividing strips 1232 and the frame 1231 together enclose a plurality of partitions 1233, each partition 1233 is connected to an injection pipe 121, and the partitions 1233 are arranged one by one with the cleaning area. On the one hand, the mesh plate 123 plays a positioning role in the installation of the injection pipe 121 through the partition 1233, so as to facilitate the rapid installation of the injection pipe 121, and on the other hand, the mesh plate 123 can also assist the identification member in identifying different cleaning areas, and play a certain marking role for different cleaning areas.

[0043] like Figures 4 to 6 As shown, in one embodiment, the oil stain detection component 120 includes a movable connecting head 126, one end of which is selectively connected to the steam source 122, and the other end is connected to one of the injection pipes 121, so that the fluid in the steam source 122, the cooling source 124 and the cleaning liquid source 125 enters the injection pipe 121 through the movable connecting head 126, and is thereby sprayed toward the baffle 112 from the nozzle 1211 of the injection pipe 121.

[0044] In one embodiment, the mobile connector 126 includes a nozzle 1261 and a nozzle 1262 connected to the nozzle 1261, the nozzle 1262 is connected to one end of the nozzle 1261 close to the injection pipe 121, and the nozzle 1262 is used to atomize the water inside the steam source 122 to form a water mist. In other embodiments, steam can also be directly generated inside the steam source 122, and the nozzle 1262 is used to pressurize the steam. In some embodiments, the steam source 122 can generate a mixed fluid of steam and small particle water mist, and the nozzle 1262 is used to further pressurize and atomize the mixed fluid. In this embodiment, the steam source 122 is a steam generating device.

[0045] like Figures 4 to 6 As shown, in one embodiment, the movable connecting head 126 is slidably connected to the inner liner 110, so that the movable connecting head 126 is selectively positioned at the injection pipe 121 and communicates with the injection pipe 121 positioned thereto, so that the fluid in the steam source 122, the cooling source 124 and the cleaning liquid source 125 enters the injection pipe 121 positioned thereto and is sprayed toward the baffle 112, so that the fluid is sprayed toward a specific area of ​​the baffle 112 by selecting the position of the injection pipe 121, and the oil pollution level and cleaning of the specific area of ​​the baffle 112 are determined. In other embodiments, the number of movable connecting heads 126 can also be multiple, and the movable connecting heads 126 are connected to the injection pipe 121 one by one, and the fluid is sprayed from different injection pipes 121 to the baffle 112 by independently controlling different movable connecting heads 126.

[0046] like Figure 4 and Figure 5 As shown, in one embodiment, the oil stain detection element further includes a driving source and a moving plate, the driving source is connected to the moving plate and is used to drive the moving plate to move relative to the inner container 110, and the moving connector 126 is connected to the moving plate. Figure 4 and Figure 5 As shown, the cooking device 100 also includes a fixed plate fixedly connected to the inner pot 110, the fixed plate is provided with a movable groove, the movable plate is partially inserted into the movable groove and slidably connected to the movable groove, and the driving source drives the movable plate to slide along the movable groove.

[0047] like Figure 4 and Figure 5 As shown, in one embodiment, the movable plate is provided with a slide groove, which is arranged in a direction that is arranged at an angle to the moving direction of the movable plate, and the movable connecting head 126 is partially inserted into the slide groove and slidably connected to the slide groove, so that the movable connecting head 126 can move along the opening direction of the slide groove. In other embodiments, the movable connecting head 126 can also be fixedly connected to the movable plate, and in this case, the movable connecting head 126 moves synchronously with the movable plate.

[0048] like Figure 4 and Figure 5 As shown, in one embodiment, the movable connecting head 126 is configured to be able to move in two directions set at an angle, the number of movable plates is two, and the slide groove set on one of the two movable plates is set along the moving direction of the other movable plate, so that when one of the two movable plates moves, the movable connecting head 126 is driven to move along the slide groove of the other of the two movable plates, thereby guiding the movement of the movable connecting head 126 in two directions through the two slide grooves.

[0049] For the convenience of description, the two moving plates are named as the first moving plate 1281 and the second moving plate 1282, respectively. The chute provided on the first moving plate 1281 is the first chute 12811, and the chute provided on the second moving plate 1282 is the second chute 12821. The driving source connected and driving the first moving plate 1281 is the first driving source 1271, and the driving source connected and driving the second moving plate 1282 is the second driving source 1272. Specifically, the first fixed plate 131 is provided with a first moving groove 1311, the first moving plate 1281 is partially inserted into the first moving groove 1311 and is slidably connected with the first moving groove 1311, and the first driving source 1271 drives the first moving plate 1281 to be slidably connected along the first moving groove 1311. Moreover, the first moving plate 1281 is provided with a first chute 12811, and the first chute 12811 is in the same direction as the moving direction of the second moving plate 1282. Correspondingly, the second fixed plate 132 is provided with a second movable groove 1321, the second movable plate 1282 is partially inserted into the second movable groove 1321 and is slidingly connected with the second movable groove 1321, the second driving source 1272 drives the second movable plate 1282 to be slidingly connected along the second movable groove 1321, and the second movable plate 1282 is provided with a second sliding groove 12821, and the second sliding groove 12821 is in the same direction as the moving direction of the second movable plate 1282.

[0050] like Figure 6 As shown, in one embodiment, the injection pipe 121 is provided with a one-way valve 129, and the one-way valve 129 is one-way connected from the outside to the injection port 1211, so that the hot air in the hot air chamber 113 flows out of the cooking device 100. In this embodiment, the one-way valve 129 is connected to one end of the injection pipe 121 located outside the hot air chamber 113.

[0051] like Figure 4 and Figure 5 As shown, in one embodiment, the steam source 122 can be selectively connected to the injection pipe 121, and the cooking device 100 also includes a cooling source 124. The cooling source 124 is provided with a cooling fluid inside. The cooling fluid can be cold air or a cooling liquid. In this embodiment, the cooling fluid is cold air as an example for description, but it is not limited. The cooling source 124 is connected and selectively connected to the injection pipe 121, and the injection pipe 121 is selectively connected to the cooling source 124 and the steam source 122. When the injection pipe 121 is connected to the cooling source 124, the cooling fluid in the cooling source 124 is sprayed to the surface of the baffle 112 through the injection pipe 121 to cool the baffle 112, thereby accelerating the condensation of water vapor on the baffle 112. Preferably, the temperature of the baffle 112 after cooling reaches the dew point temperature of the water vapor.

[0052] like Figure 4 and Figure 5As shown, in one embodiment, the steam source 122 can be selectively connected to the injection pipe 121, and the cooking device 100 also includes a cleaning liquid source 125, and the cleaning liquid source 125 is provided with a cleaning liquid inside. The cleaning liquid can be any cleaning liquid with a degreasing function, and is not limited. The cleaning liquid source 125 is connected and selectively connected to the injection pipe 121, and the injection pipe 121 is selectively connected to the cleaning liquid source 125 and the steam source 122. When the injection pipe 121 is connected to the cleaning liquid source 125, the cleaning liquid inside the cleaning liquid source 125 is sprayed onto the surface of the baffle 112 through the injection pipe 121 to clean the surface of the baffle 112 with oil stains.

[0053] After the cleaning liquid is sprayed on the oily surface, chemical reaction begins. The surfactant or organic solvent in the cleaning liquid can decompose the grease molecular chain, so that the adhesion between the oil and the baffle 112 and the back plate 1111 is weakened. The spraying time and the amount of cleaning liquid can be programmed according to the area and thickness of the oil to ensure the best dissolution effect.

[0054] In one embodiment, the back plate 1111 or the baffle 112 is provided with a drain port connected to the outside, so that the cleaning liquid, condensed droplets or cooling fluid can be discharged from the hot air chamber 113 through the drain port. In this embodiment, the baffle 112 is provided with a drain port connected to the inner tank 110, and the bottom of the inner tank 110 is provided with a drain channel connected to the sewage tank, so that the cleaning liquid, condensed droplets or cooling fluid can enter the drain channel through the drain port, and enter the sewage tank through the drain channel. In the process of the cleaning liquid flowing to the drain port, gravity and the residual kinetic energy of the cleaning liquid can be used for self-flow cleaning to avoid secondary pollution.

[0055] The cooking device 100 provided in the present application is different from the traditional static cleaning system. The mobile connecting head 126 can dynamically spray along multiple paths under the drive of the driving source, ensuring that the cleaning liquid can accurately cover the oil-concentrated area to achieve efficient and precise cleaning.

[0056] like Figure 4 and Figure 5 As shown, in the present embodiment, the cooking device 100 also includes a plurality of pipes 170, one of which is connected between the steam source 122 and the injection pipe 121, and in the present embodiment, it connects the steam source 122 and the movable connecting head 126; another pipe 170 is connected between the cooling source 124 and the injection pipe 121, and in the present embodiment, it connects the cooling source 124 and the movable connecting head 126; another pipe 170 is connected between the cleaning liquid source 125 and the injection pipe 121, and in the present embodiment, it connects the cleaning liquid source 125 and the movable connecting head 126.

[0057] like Figure 4 and Figure 5As shown, in this embodiment, the cooking device 100 further includes a flow regulating member 140, which is connected to the pipe 170 between the cleaning liquid source 125 and the injection pipe 121 and acts on the cleaning liquid in the pipe 170 to control the flow and pressure of the cleaning liquid. In this embodiment, the flow regulating member 140 includes a pressure sensor and a flow meter, and the amount of the cleaning liquid is controlled by the pressure sensor and the flow meter, and the output of the cleaning liquid is adjusted according to the actual thickness and area of ​​the oil stain, thereby reducing the consumption of the cleaning liquid and meeting the green energy-saving requirements.

[0058] The cooking device 100 provided in the present application is provided with a spray pipe 121 arranged toward the baffle 112, and the spray pipe 121 is connected to the steam source 122, so that the steam in the steam source 122 can be sprayed toward the surface of the baffle 112 through the spray pipe 121, and droplets are formed by condensation of the steam sprayed toward the surface of the baffle 112 when it is cooled. By providing an identification component, the morphology and distribution of the condensed droplets on the surface of the baffle 112 are observed, and the characteristics of the condensed droplets in different areas are compared. According to the hydrophobicity of the oil stains, the location, range and pollution level of the oil stains on the surface of the baffle 112 are identified, thereby solving the problem of whether there is oil stain on the surface of the existing baffle 112 and not being able to observe it. The user can timely understand whether oil stains are accumulated on the surface of the baffle 112 so as to remind the user to clean it, which provides a basis for cleaning the oil stain area on the back of the baffle 112, thereby solving the problem of the back of the baffle 112 being difficult to observe and clean.

[0059] The present application also provides a method for detecting and cleaning oil stains in a cooking device 100, which is applied to the cooking device 100, which can be any cooking device 100 in any of the above embodiments of the present application, or any cooking device 100 having the following characteristics, wherein the cooking device 100 includes a baffle 112, a spray pipe 121 disposed toward the baffle 112, and an identification member disposed toward the baffle 112, the identification member being used to photograph and identify surface information of the surface of the baffle 112. The method for detecting and cleaning oil stains in the cooking device 100 includes the following steps: S10: Controlling the spray pipe 121 to spray steam and / or water mist toward the baffle 112. The spray pipe 121 may spray steam or water mist toward the baffle 112, or a mixture of the two. S20: Control the identification element to photograph the shape and distribution of condensed droplets on the surface of the baffle 112 to obtain surface information, and determine the degree of oil contamination on the surface of the baffle 112 based on the surface information. By setting the identification element to observe the shape and distribution of condensed droplets on the surface of the baffle 112, compare the characteristics of condensed droplets in different areas, and identify the location, range, and contamination level of the oil contamination on the surface of the baffle 112 based on the hydrophobicity of the oil contamination.

[0060] In one embodiment, in step "S10: control the injection pipe 121 to spray steam and / or water mist toward the baffle 112", the following steps are also included: S11: control the injection pipe 121 to spray cooling fluid toward the baffle 112 to cool the baffle 112, thereby accelerating the condensation of steam and / or water mist on the baffle 112. S12: control the injection pipe 121 to spray steam and / or water mist toward the baffle 112, and wait for the steam and / or water mist to condense into droplets on the surface of the baffle 112.

[0061] In one embodiment, in step "S20: controlling the identification element to photograph the morphology and distribution of the condensed droplets on the surface of the baffle 112 to obtain surface information, and the degree of oil pollution on the surface of the baffle 112 according to the surface information", the following steps are also included: S21: controlling the identification element to photograph the morphology of the condensed droplets on the surface of the baffle 112 to obtain the volume of the condensed droplets. It can be understood that the growth process of the condensed droplets is affected by the condensation rate and surface characteristics, and the volume of the droplets increases with time t, which can be described by the following formula: Where: V(t) is the volume of the droplet, r(t) is the radius of the droplet changing with time. On the surface with oil stains, due to poor wettability, the radius of the droplet r(t) will grow faster, so the volume of the droplet is larger, but the distribution is uneven.

[0062] S22: Compare the volume of the condensed droplets with the preset volume to determine the degree of oil pollution on the surface of the baffle 112 corresponding to the area where the condensed droplets are located. The preset volume refers to presetting a droplet volume as a standard for evaluating the size of the condensed droplet volume. The preset volume can be set according to actual needs, and the preset volume can be one or more.

[0063] In this embodiment, two preset volumes are used for illustration, and the first droplet volume threshold V(t) is preset respectively. 1 and the second droplet volume threshold V(t) 2 , where V(t) 1 <V(t) 2 After the cooking device 100 has been used for a period of time, steam is uniformly sprayed onto the surface of the baffle 112 through the injection pipe 121, and the morphology and distribution of condensed droplets on the surface of the baffle 112 are photographed by the identification element to obtain surface information, and the volume V(t) of the droplets is recorded again; by comparing V(t) and V(t) 1 、V(t) 2 The size of V(t) can be used to obtain the current dirtiness level. For example, if V(t) < V(t) 1 , it means the degree of dirtiness is light; if V(t) 1 ≤V(t)≤V(t) 2 It means that the dirtiness is moderate; if V(t) 2<V(t) indicates that the degree of dirtiness is severe.

[0064] In some embodiments, the end surface of the baffle 112 facing the back plate 1111 includes a plurality of continuously distributed cleaning areas, and the injection pipe 121 and the cleaning area are arranged one by one. By comparing the volume of condensed droplets in each cleaning area with a preset volume, the dirtiness level of each cleaning area is determined, thereby determining the location, range, and pollution level of the oil stains, so as to determine whether to enter the cleaning mode to clean the oil stains that exceed the pollution level according to the location, range, and pollution level of the oil stains.

[0065] In one embodiment, the cooking device 100 oil stain detection and cleaning method further includes the following steps: after determining the oil stain degree on the surface of the baffle 112, S30: control the injection pipe 121 to spray cleaning liquid toward the baffle 112 to clean the surface of the baffle 112, and use the chemical reaction between the cleaning liquid and the oil stain to clean the surface of the baffle 112. The mechanical parameters of the cleaning liquid spray (such as pressure, angle, flow rate) are adjusted according to the oil stain degree. The spray power and angle here can be explained by the Bernoulli equation and the fluid momentum formula: P+ρv 2 +ρgh=constant, where P represents the outlet pressure of the nozzle 1261, v represents the spraying speed of the cleaning liquid, ρ represents the density of the cleaning liquid, and h represents the height position of the nozzle 1261. By controlling the pressure and flow rate, the kinetic energy of the cleaning liquid can be effectively increased, so that it can produce an efficient flushing effect on the oil stains.

[0066] In the oil stain detection and cleaning method of the cooking device 100 provided in the present application, a cooling fluid is first sprayed toward the baffle 112 to cool the baffle 112, thereby accelerating the condensation of subsequent steam and / or water mist on the baffle 112, and then steam and / or water mist are sprayed toward the baffle 112, and the steam and / or water mist are kept still to condense droplets on the surface of the baffle 112, and the volume of the condensed droplets is obtained according to the shape of the condensed droplets on the surface of the baffle 112, and the volume of the condensed droplets is compared with the preset volume to determine the degree of oil stain on the surface of the baffle 112 corresponding to the area where the condensed droplets are located, and the injection pipe 121 is controlled to spray cleaning fluid toward the area of ​​the baffle 112 that needs to be cleaned, for example, where the oil stain level is severe, to clean the surface of the baffle 112, so that the user can know in time that oil stains have accumulated on the surface of the baffle 112 and be reminded to clean it, and the user cleans the oil stain area on the back of the baffle 112 according to the prompt, thereby solving the problem that the back of the baffle 112 is difficult to observe and clean.

[0067] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A cooking device, characterized in that: The cooking device comprises: An inner tank, comprising a hollow shell and a baffle connected to the shell, wherein the baffle and the shell enclose a hot air cavity, and the shell comprises a back plate for defining the hot air cavity and arranged opposite to the baffle; and The oil pollution detection component includes an identification component, an injection pipe and a steam source connected to the injection pipe, the injection pipe is connected to the back plate, and the injection pipe includes a spray port located in the hot air chamber and arranged toward the baffle, the identification component is arranged toward the baffle and is used to photograph and analyze the morphology and distribution of condensed droplets on the surface of the baffle.

2. The cooking device according to claim 1, characterized in that: There are multiple injection pipes, and the injection pipes are distributed in an array on the back plate.

3. The cooking device according to claim 2, characterized in that: The end surface of the baffle plate facing the back plate includes a plurality of continuously distributed cleaning areas, and the injection pipes and the cleaning areas are arranged in one-to-one correspondence.

4. The cooking device according to claim 3, characterized in that: The oil stain component includes a mesh plate located between the baffle and the back plate, the mesh plate includes a frame and a plurality of dividing strips connected to the frame and cross-arranged, the dividing strips and the frame together enclose a plurality of partition areas, each of the partition areas is connected to an injection pipe, and the partition areas are arranged one-to-one with the cleaning areas.

5. The cooking device according to claim 1, characterized in that: The steam source can be selectively connected to the injection pipe. The cooking device also includes a cooling source, which has a cooling fluid inside. The cooling source is connected to and selectively connected to the injection pipe, and the injection pipe is selectively connected to the cooling source and the steam source.

6. The cooking device according to claim 1, characterized in that The steam source can be selectively connected to the injection pipe. The cooking device also includes a cleaning liquid source, which is connected to and selectively connected to the injection pipe, and the injection pipe is selectively connected to the cleaning liquid source and the steam source.

7. The cooking device according to claim 2, characterized in that: The oil pollution detection component includes a movable connecting head, one end of which is selectively connected to the steam source, and the other end of which is connected to one of the injection pipes.

8. The cooking device according to claim 7, characterized in that The movable connecting head is slidably connected to the inner container so that the movable connecting head can be selectively aligned with the injection pipe and communicated with the aligned injection pipe.

9. The cooking device according to claim 8, characterized in that The oil pollution detection component also includes a driving source and a moving plate, the driving source is connected to the moving plate and is used to drive the moving plate to move relative to the inner container, and the moving connecting head is connected to the moving plate.

10. The cooking device according to claim 9, characterized in that The movable plate is provided with a slide groove, and the slide groove is arranged along a direction which is arranged at an angle with the moving direction of the movable plate. The movable connecting head is partially inserted into the slide groove and is slidably connected with the slide groove.

11. The cooking device according to claim 10, characterized in that The movable connecting head is configured to be movable in two directions arranged at an angle, the number of the movable plates is two, and the slide groove arranged on one of the two movable plates is arranged along the moving direction of the other movable plate.

12. The cooking device according to claim 1, characterized in that The injection pipe is provided with a one-way valve, and the one-way valve is connected from the outside to the injection port in one direction.

13. A cooking equipment oil stain detection and cleaning method, characterized in that: The invention is applied to a cooking device, the cooking device comprising a baffle, an injection pipe arranged toward the baffle, and an identification member arranged toward the baffle, the identification member being used to photograph and identify surface information of the baffle surface, comprising the following steps: Controlling the injection pipe to spray steam and / or water mist toward the baffle; The control recognition element photographs the morphology and distribution of condensed liquid droplets on the baffle surface to obtain surface information, and determines the degree of oil contamination on the baffle surface based on the surface information.

14. The cooking equipment oil stain detection and cleaning method according to claim 13, characterized in that: In the step of "controlling the injection pipe to spray steam and / or water mist toward the baffle", the following steps are also included: Controlling the injection pipe to spray cooling fluid toward the baffle to cool the baffle; The injection pipe is controlled to spray steam and / or water mist toward the baffle, and the steam and / or water mist are kept still to condense into liquid droplets on the surface of the baffle.

15. The cooking equipment oil stain detection and cleaning method according to claim 13, characterized in that: In the step of "controlling the identification element to photograph the morphology and distribution of condensed droplets on the baffle surface to obtain surface information, and determining the degree of oil contamination on the baffle surface according to the surface information", the following steps are also included: The control recognition element photographs the shape of the condensed liquid droplets on the baffle surface to obtain the volume of the condensed liquid droplets; The volume of the condensed liquid droplets is compared with a preset volume to determine the degree of oil contamination on the surface of the baffle corresponding to the area where the condensed liquid droplets are located.

16. The cooking equipment oil stain detection and cleaning method according to claim 13, characterized in that: The following steps are also included: The spray pipe is controlled to spray the cleaning liquid toward the baffle plate to clean the surface of the baffle plate.

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