Oil stain detection device and cooking apparatus

Abstract

The application relates to an oil stain detection device and a cooking device, the oil stain detection device comprising a baffle, a light source and a dirt accumulation piece; the baffle is provided with a plurality of light transmission holes penetrating through the baffle; the light source is located at the back side of the baffle, and the light source is used for emitting a light beam towards the light transmission hole; the dirt accumulation piece is located between the light source and the baffle, and the dirt accumulation piece is on the light path of the light beam and is used for propagating the light beam; the dirt accumulation piece is configured to have a surface capable of adsorbing oil stains, and the oil stains on the surface of the dirt accumulation piece interfere with the propagation of the light beam by the dirt accumulation piece. The above scheme sets the dirt accumulation piece capable of propagating the light beam and adsorbing the oil stains on the light path, so as to judge the propagation effect of the light beam by the dirt accumulation piece according to the observable light quantity of the light transmission hole, thereby inversely deducing the surface oil stain quantity of the dirt accumulation piece, and further obtaining the oil stain content in the space where the dirt accumulation piece is located, realizing the effect of inversely deducing the oil stain content in the space on the back side of the baffle by observing the light quantity of the light beam transmitted through the light transmission hole, and solving the problem that the oil stains on the back side of the baffle cannot be observed.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to oil stain detection devices and cooking equipment. Background Technology

[0002] Cooking equipment such as steam ovens typically utilize radiant heat from electric heating elements to bake food. Depending on the specific needs of the food being baked, the temperature of the baking cooking device can generally be adjusted within the range of 50℃ to 250℃. The back of the inner cavity of a cooking device with a baking function is equipped with a hot air baffle. Heating elements and fan blades are installed on the back of the hot air baffle to create a hot air chamber that circulates with the hot air from the cooking cavity.

[0003] During the cooking process, oil splattering inside the cooking chamber onto the hot air blower baffle. This baffle, equipped with air inlets and outlets for hot air circulation, allows oil to accumulate on the back of the baffle. Since the baffle is typically fixed to the inner liner, only the air inlets and outlets offer visibility of its interior. This prevents users from promptly noticing oil buildup on the back of the baffle and thus hinders timely cleaning. Over time, this accumulated oil can cause unpleasant odors within the cooking appliance's inner liner. Summary of the Invention

[0004] Therefore, it is necessary to provide an oil stain detection device and cooking equipment to address the problem that oil stains on the back of the hot air blower baffle in existing cooking equipment are difficult to observe.

[0005] An oil stain detection device includes a baffle, a light source, and a stain-accumulating component. The baffle has multiple light-transmitting holes penetrating through it. The light source is located on the back side of the baffle and is used to emit a light beam toward the light-transmitting holes. The stain-accumulating component is located between the light source and the baffle, and is positioned in the optical path of the light beam and is used to propagate the light beam. The stain-accumulating component is configured such that its surface can adsorb oil stains, and the oil stains on the surface of the stain-accumulating component interfere with the propagation of the light beam.

[0006] In one embodiment, the dirt-collecting component is made of a porous material, and along a direction parallel to the light path, the projection of the dirt-collecting component on the baffle at least partially covers the light-transmitting hole.

[0007] In one embodiment, the oil stain detection device further includes a back plate located on the back side of the baffle, and the back plate and the baffle together enclose a hot air cavity containing oil stains, with the accumulating component located inside the hot air cavity.

[0008] In one embodiment, the oil stain detection device further includes a sleeve, one end of which is connected to the baffle and located opposite the light-transmitting hole. The sleeve has a placement cavity arranged in a direction parallel to the light path, the accumulating dirt is disposed in the placement cavity, and the circumferential surface of the sleeve has a through hole for connecting the placement cavity and the hot air cavity.

[0009] In one embodiment, the light source is located on the side of the back plate away from the baffle, and the back plate has a light-emitting hole that penetrates the back plate. The light-emitting hole is located opposite the light source so that the light beam passes through the light-emitting hole.

[0010] In one embodiment, the oil stain detection device further includes a light guide column, which is made of a light-transmitting material and passes through the light outlet hole.

[0011] In one embodiment, the end of the light guide column away from the light source extends into the hot air cavity, and the end of the sleeve away from the baffle is connected to the light guide column.

[0012] In one embodiment, the dirt-collecting component is located at one end of the sleeve near the baffle, and the dirt-collecting component and the light guide post are spaced apart in a direction parallel to the light path.

[0013] A cooking device includes an oil stain detection device as described in any of the above embodiments, and also includes an inner pot. A baffle is connected to the inner pot. The inner pot is hollow inside to form a cooking cavity with an open front end, together with the baffle. The baffle is located on the side of the cooking cavity away from the open end, and the light source is located on the side of the baffle opposite to the cooking cavity.

[0014] In one embodiment, the baffle is rotatably disposed relative to the inner liner between a working position and a cleaning position. The baffle includes an outer end face and an inner end face disposed opposite to each other. When the baffle is in the working position, the outer end face faces the opening and is parallel to the plane where the opening is located, and the light-transmitting hole is located opposite the light source. When the baffle is in the cleaning position, the inner end face is disposed at an angle to the plane where the opening is located.

[0015] In one embodiment, the baffle rotates at an angle of not less than 90° between the working position and the cleaning position.

[0016] In one embodiment, the cooking device further includes a flipping assembly connected to the inner pot and the baffle, which is used to drive the baffle to rotate relative to the inner pot between a working position and a cleaning position.

[0017] In one embodiment, the flipping assembly includes a base and a connecting rod, the base being located on the side of the baffle away from the cooking cavity, and the two ends of the connecting rod being rotatably connected to the base and the baffle, respectively.

[0018] In one embodiment, the flipping assembly further includes an active rod and a fixed rod. The fixed rod is connected to the inner end face, and the two ends of the active rod are rotatably connected to the base and the fixed rod, respectively. The end of the connecting rod connected to the baffle and the end of the active rod connected to the fixed rod are spaced apart in a direction perpendicular to the inner end face. The end of the active rod connected to the base and the end of the connecting rod connected to the base are spaced apart in a direction parallel to the inner end face of the baffle when it is in the working position.

[0019] In one embodiment, the flipping assembly further includes a drive member connected to the drive rod and used to drive the drive rod to rotate relative to the base.

[0020] The oil stain detection device provided in the above solution, by opening a light-transmitting hole in the baffle and setting a light source on the back side of the baffle, and placing a dirt-accumulating component that can propagate the light beam and absorb oil stains in the light path, can determine the propagation effect of the dirt-accumulating component on the light beam by observing the amount of light that can be observed through the light-transmitting hole after the light beam has passed through the dirt-accumulating component. This allows the amount of oil stains on the surface of the dirt-accumulating component to be inferred, and thus the oil stain content in the space where the dirt-accumulating component is located. This achieves the effect of inferring the oil stain content in the space on the back side of the baffle by observing the amount of light beam passing through the light-transmitting hole, solving the problem that oil stains on the back side of the baffle cannot be observed, and realizing the technical effect of automatically reminding users to clean the back of the baffle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a cooking device in one embodiment of this application.

[0022] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the oil spill detection device.

[0023] Figure 3 for Figure 2 A cross-sectional schematic diagram of an oil spill detection device.

[0024] Figure 4 for Figure 1 A cross-sectional view of a Chinese cooking device.

[0025] Figure 5 for Figure 1 A schematic diagram of the baffle in the cooking equipment when it is in the cleaning position.

[0026] Figure 6for Figure 5 A cross-sectional structural diagram of a Chinese cooking device.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Cooking equipment; 110. Oil stain detection device; 111. Baffle; 1111. Light-transmitting hole; 1112. Outer end face; 1113. Inner end face; 112. Light source; 113. Stain accumulation part; 114. Back plate; 1141. Light emission hole; 115. Sleeve; 1151. Placement cavity; 1152. Through hole; 116. Light guide column; 117. Hot air cavity; 120. Inner liner; 121. Cooking cavity; 130. Flipping assembly; 131. Base; 132. Connecting rod; 133. Active rod; 134. Fixing rod; 135. Drive component; 136. Conversion component. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0035] See Figure 1 , Figure 1 This diagram illustrates the structure of a cooking device 100 according to one embodiment of this application. The cooking device 100 provided in this embodiment can be an oven, a steam oven, or any existing device with cooking functions. The cooking device 100 includes an oil stain detection device 110 as described in any of the following embodiments, and also includes an inner liner 120. A baffle 111 in the oil stain detection device 110 is connected to the inner liner 120. The inner liner 120 is hollow inside, forming a cooking cavity 121 with an open front end, together with the baffle 111, for cooking food. Figure 1 As shown, the baffle 111 is located on the side of the cooking cavity 121 away from the opening.

[0036] Combination Figure 2 As shown, Figure 2An exploded view of an oil stain detection device 110 according to an embodiment of this application is shown. The oil stain detection device 110 provided in this embodiment is used to detect oil stain content as a basis for determining whether oil stain cleaning is necessary. Figure 2 As shown, the oil stain detection device 110 includes a baffle 111, a light source 112, and a stain accumulation component 113. The baffle 111 has multiple light-transmitting holes 1111 that penetrate the baffle 111, so that the light beam can pass through the light-transmitting holes 1111.

[0037] Combination Figure 3 As shown, Figure 3 A cross-sectional schematic diagram of an oil stain detection device 110 according to an embodiment of this application is shown. The light source 112 is located on the back side of the baffle 111, on the side of the baffle 111 facing away from the cooking cavity 121. Figure 3 As shown, the light source 112 is used to emit a light beam toward the light-transmitting hole 1111, so that the user can observe the light beam passing through the light-transmitting hole 1111 from the side of the baffle 111 facing the cooking cavity 121. In this embodiment, the light source 112 can be an LED lamp (light-emitting diode lamp), and in other embodiments, the light source 112 can also be an incandescent lamp or the like.

[0038] like Figure 2 and Figure 3 As shown, the dirt-collecting component 113 is located between the light source 112 and the baffle 111, and the dirt-collecting component 113 is in the optical path of the light beam and is used to propagate the light beam. The dirt-collecting component 113 is configured to have a surface capable of adsorbing oil stains, and the oil stains on the surface of the dirt-collecting component 113 interfere with the propagation of the light beam by the dirt-collecting component 113. The amount of oil stains on the surface of the dirt-collecting component 113 and the propagation effect of the dirt-collecting component 113 on the light beam are inversely correlated. By observing the amount of light that can be observed through the light-transmitting hole 111 after the light source 112 propagates through the dirt-collecting component 113, the propagation effect of the dirt-collecting component 113 on the light beam can be judged, thereby inferring the amount of oil stains on the surface of the dirt-collecting component 113, and thus knowing the oil stain content in the space where the dirt-collecting component 113 is located. This achieves the effect of inferring the oil stain content in the space behind the baffle 111 by observing the amount of light transmitted through the light-transmitting hole 1111, solving the problem that the oil stains on the back of the baffle 111 cannot be observed, and realizing the technical effect of automatically reminding the user to clean the back of the baffle 111.

[0039] like Figure 2 and Figure 3As shown, in one embodiment, the contaminant 113 is made of a porous material, and its internal pores form the light path. Oil can adhere to both the surface and the internal pores of the contaminant 113. It is understood that oil accumulation on the surface of the porous material and in the internal pores of the porous material both represent oil adsorption on the porous material surface, the difference being between the outer and inner surfaces. When oil accumulates in the internal pores of the contaminant 113, the oil at least partially blocks the pores through which light passes, thereby interfering with the propagation of light within the contaminant 113. Along a direction parallel to the light path, the projection of the contaminant 113 onto the baffle 111 at least partially covers the light-transmitting hole 1111. Figure 3 In the illustrated embodiment, the projection of the dirt-collecting component 113 onto the baffle 111 completely covers all the light-transmitting holes 1111. In this case, the amount of oil dirt absorbed by the dirt-collecting component 113 is determined by comparing the light emission from the light-transmitting holes 1111 in the initial state with the light emission from the light-transmitting holes 1111 after long-term use. In other embodiments, the projection of the dirt-collecting component 113 onto the baffle 111 may only cover part of the light-transmitting holes 1111. In this case, the amount of oil dirt absorbed by the dirt-collecting component 113 is determined by comparing the light emission from the covered light-transmitting holes 1111 with the uncovered light-transmitting holes 1111. In other embodiments, the dirt-collecting component 113 may also be a reflective component or the like with a surface capable of absorbing oil dirt.

[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the oil stain detection device 110 further includes a back plate 114, which is located on the back side of the baffle 111. The back plate 114 and the baffle 111 together enclose a hot air cavity 117 containing oil stains, and the accumulating component 113 is located inside the hot air cavity 117. In the cooking device 100, the hot air cavity 117 is used to communicate with the cooking cavity 121 for hot air circulation. Since oil stains are generated during the cooking process of food in the cooking cavity 121, oil stain particles may enter the hot air cavity 117 with the circulating hot air and accumulate inside the hot air cavity 117. When the accumulating component 113 is located inside the hot air cavity 117, the amount of oil stains in the hot air cavity 117 where the accumulating component 113 is located can be inferred by observing the amount of light beam transmitted through the light-transmitting hole 1111 from the side of the baffle 111 facing the cooking cavity 121.

[0041] like Figure 2 and Figure 3As shown, in one embodiment, the oil stain detection device 110 further includes a sleeve 115. In this embodiment, the sleeve 115 is made of metal material to facilitate processing, but this is not a limitation. In other embodiments, the sleeve 115 may also be made of resin material. One end of the sleeve 115 is connected to the baffle 111 and is located opposite the light-transmitting hole 1111. The sleeve 115 has a placement cavity 1151 arranged in a direction parallel to the light path. The dirt-accumulating part 113 is disposed in the placement cavity 1151 to limit the position of the dirt-accumulating part 113 and prevent the dirt-accumulating part 113 from being offset relative to the light path and affecting the light output of the light-transmitting hole 1111. The circumferential surface of the sleeve 115 has a through hole 1152 for connecting the placement cavity 1151 and the hot air cavity 117, so that the oil in the hot air cavity 117 can enter the dirt-accumulating part 113 in the placement cavity 1151 through the through hole 1152 and adhere to the surface of the dirt-accumulating part 113, thereby interfering with the light path propagation effect of the dirt-accumulating part 113.

[0042] like Figure 2 and Figure 3 As shown, in one embodiment, the light source 112 is located on the side of the back plate 114 away from the baffle 111. The light source 112 is located outside the hot air cavity 117 to avoid the light source 112 being affected by heat, moisture and oil in the circulating hot air. The back plate 114 has a light outlet hole 1141 that penetrates the back plate 114. The light outlet hole 1141 is located opposite the light source 112 so that the light beam can pass through the light outlet hole 1141 and enter the hot air cavity 117.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the oil stain detection device 110 further includes a light guide column 116. The light guide column 116 is made of a light-transmitting material. In this embodiment, the light guide column 116 is made of glass. In other embodiments, the light guide column 116 can also be made of a light-guiding resin material with high-temperature resistance. The light guide column 116 passes through the light outlet hole 1141 so that the light beam emitted by the light source 112 enters the hot air cavity 117 through the light guide column 116.

[0044] like Figure 3 As shown, in one embodiment, the end of the light guide post 116 away from the light source 112 extends into the hot air cavity 117, and the end of the sleeve 115 away from the baffle 111 is connected to the light guide post 116 so that the positions of the sleeve 115 and the light guide post 116 are relatively fixed.

[0045] like Figure 3 As shown, in one embodiment, the dirt accumulation component 113 is located at one end of the sleeve 115 near the baffle 111, and the dirt accumulation component 113 and the light guide post 116 are spaced apart in a direction parallel to the light path, so as to facilitate the oil to pass through the through hole 1152 of the sleeve 115 and enter the dirt accumulation component 113.

[0046] The oil stain detection device 110 provided in the above solution allows light from the light source 112 to pass through the light guide column 116, the placement cavity 1151 in the sleeve 115, the dirt accumulation part 113, and the light-transmitting hole 1111 of the baffle 111 when there is no oil stain on the back side of the baffle 111. This allows the light to be observed from the opening of the cooking cavity 121. When there is oil stain on the back side of the baffle 111, the oil stain enters the placement cavity 1151 in the sleeve 115 through the through hole 1152 of the sleeve 115, and is adsorbed on the surface of the dirt accumulation part 113. This oil stain enters the pores inside the dirt accumulation part 113, which is a porous material, thereby reducing the amount of light that can pass through the dirt accumulation part 113 and reducing the amount of light that passes through the light-transmitting hole 1111. The degree of oil stain accumulation on the back side of the baffle 111 can be determined based on the amount of light emitted from the light-transmitting hole 1111, thus allowing timely determination of whether the back side of the baffle 111 needs to be cleaned.

[0047] Combination Figures 4 to 6 As shown, in one embodiment, the baffle 111 can be positioned relative to the inner liner 120 as follows: Figure 1 and Figure 4 The work location shown and as Figure 5 and Figure 6 The cleaning positions shown are rotatably arranged to facilitate cleaning of the baffle 111 when cleaning is required. For example... Figure 4 and Figure 6 As shown, the baffle 111 includes an outer end face 1112 and an inner end face 1113 disposed opposite to each other. Figure 1 and Figure 4 As shown, when the baffle 111 is in the working position, its outer end face 1112 faces the opening and is parallel to the plane of the opening. At this time, the baffle 111 separates the hot air chamber 117 and the cooking chamber 121, so that the cooking chamber 121 can be used to cook food, and as... Figures 1 to 3 As shown, at this time, the light-transmitting aperture 1111 is positioned opposite the light source 112, so that the light beam emitted by the light source 112 can travel along the path shown. Figure 3 The light path shown passes through the light-transmitting aperture 1111 to facilitate observation of the amount of light emitted through the aperture 1111. For example... Figure 4 and Figure 6 As shown, when the baffle 111 is in the cleaning position, the inner end face 1113 is set at an angle to the plane where the opening is located, so as to extend from the gap between the inclined baffle 111 and the inner liner 120 to clean the inner end face 1113 of the baffle 111 and the end face of the back plate 114 facing the baffle 111.

[0048] like Figure 6As shown, in one embodiment, the baffle 111 rotates at an angle of not less than 90° between the working position and the cleaning position. At this time, the gap between the baffle 111 and the inner liner 120 is larger, and the inner end face 1113 of the baffle 111 is inclined towards the direction of the opening, so as to facilitate cleaning the inner end face 1113 of the baffle 111, the end face of the back plate 114 facing the baffle 111, and the components inside the hot air chamber 117.

[0049] like Figures 4 to 6 As shown, in one embodiment, the cooking appliance 100 further includes a flipping assembly 130, which is connected to the inner pot 120 and the baffle 111, and is used to drive the baffle 111 relative to the inner pot 120 in a certain direction. Figure 1 and Figure 4 The work location shown and as Figure 5 and Figure 6 Rotate between the cleaning positions shown.

[0050] like Figure 4 and Figure 6 As shown, in one embodiment, the flipping assembly 130 includes a base 131 and a connecting rod 132. The base 131 is located on the side of the baffle 111 facing away from the cooking cavity 121. In this embodiment, the base 131 is located inside the hot air cavity 117 and connected to the end face of the back plate 114 facing the baffle 111. Figure 4 and Figure 6 As shown, the two ends of the connecting rod 132 are rotatably connected to the base 131 and the baffle 111, respectively, so that the baffle 111 can be flipped relative to the base 131.

[0051] like Figure 4 and Figure 6 As shown, in one embodiment, the flipping assembly 130 further includes an active rod 133 and a fixed rod 134. The fixed rod 134 is connected to the inner end face 1113, and the two ends of the active rod 133 are rotatably connected to the base 131 and the fixed rod 134, respectively. The end of the connecting rod 132 connected to the baffle 111 and the end of the active rod 133 connected to the fixed rod 134 are spaced apart in a direction perpendicular to the inner end face 1113. The end of the active rod 133 connected to the base 131 and the end of the connecting rod 132 connected to the base 131 are spaced apart in a direction parallel to the inner end face 1113 when the baffle 111 is in the working position, so that the active rod 133, the fixed rod 134, the connecting rod 132 and the base 131 together form a four-bar linkage 132 structure, thereby realizing that when the active rod 133 rotates, it drives the baffle 111 to flip.

[0052] like Figure 4 and Figure 6As shown, in one embodiment, the flipping assembly 130 further includes a drive member 135, which is connected to the drive rod 133 and used to drive the drive rod 133 to rotate relative to the base 131, thereby causing the baffle 111 to flip. Figure 4 and Figure 6 As shown, in this embodiment, the flipping assembly 130 also includes a conversion component 136, which is used to change the rotation direction of the drive shaft of the drive component 135 to achieve right-angle reversal, so that the drive component 135 can be located outside the hot air cavity 117 and installed on the end face of the back plate 114 away from the baffle 111, thereby avoiding the heat, water vapor and oil stains in the hot air cavity 117 from interfering with the drive component 135.

[0053] like Figure 6 As shown, in one embodiment, the fixing rod 134 is arranged in a direction perpendicular to the inner end face 1113, and the connecting rod 132 and the driving rod 133 are respectively connected to the two ends of the fixing rod 134 to facilitate the installation of the connecting rod 132 and the driving rod 133. In other embodiments, the fixing rod 134 may also be inclined relative to the inner end face 1113.

[0054] like Figure 6 As shown, in one embodiment, the connecting rod 132 is connected to the end of the fixed rod 134 near the baffle 111 to facilitate the installation of the connecting rod 132, avoid the connecting rod 132 from interfering with the inherent structure of the baffle 111 by connecting to the baffle 111, thereby avoiding interference of the flipping mechanism with other functions of the baffle 111 and avoiding increased production costs.

[0055] like Figure 6 As shown, in one embodiment, the base 131 is arranged along the height direction, and the end of the active rod 133 connected to the base 131 and the end of the connecting rod 132 connected to the base 131 are spaced apart in the height direction, so that when the baffle 111 flips relative to the inner liner 120, the flipping axis around which it rotates is arranged in the horizontal direction. In other embodiments, the base 131 may also be arranged in the horizontal direction, in which case the active rod 133 and the connecting rod are spaced apart in the horizontal direction, and the flipping axis around which the baffle 111 flips relative to the inner liner 120 is arranged in the height direction.

[0056] like Figure 6 As shown, in one embodiment, one end of the connecting rod 132 connected to the base 131 is located above one end of the active rod 133 connected to the base 131, so that the active rod 133 rotates to drive the baffle 111 to flip. In other embodiments, one end of the connecting rod 132 connected to the base 131 may be located below one end of the active rod 133 connected to the base 131, which also enables the active rod 133 to rotate to drive the baffle 111 to flip.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An oil stain detection device, characterized in that, The oil stain detection device includes: The baffle has multiple light-transmitting holes that penetrate through it; A light source, located on the back side of the baffle, is used to emit a light beam directed toward the light-transmitting hole; and A contaminant, located between the light source and the baffle, and situated in the optical path of the light beam for propagating the beam, is configured such that its surface can absorb oil, and the oil on its surface interferes with the propagation of the light beam. A back plate is located on the back side of the baffle, and the back plate and the baffle together enclose a hot air cavity containing oil stains, and the contaminated part is located inside the hot air cavity.

2. The oil stain detection device according to claim 1, characterized in that, The dirt-accumulating component is made of a porous material, and along a direction parallel to the light path, the projection of the dirt-accumulating component on the baffle at least partially covers the light-transmitting hole.

3. The oil stain detection device according to claim 1, characterized in that, The oil stain detection device also includes a sleeve, one end of which is connected to the baffle and is located opposite the light-transmitting hole. The sleeve has a placement cavity arranged in a direction parallel to the light path. The accumulating dirt is placed in the placement cavity, and the sleeve has a through hole on its circumferential surface for connecting the placement cavity and the hot air cavity.

4. The oil stain detection device according to claim 3, characterized in that, The light source is located on the side of the back plate away from the baffle, and the back plate has a light-emitting hole that penetrates the back plate. The light-emitting hole is located opposite the light source so that the light beam passes through the light-emitting hole.

5. The oil stain detection device according to claim 4, characterized in that, The oil stain detection device also includes a light guide column, which is made of a light-transmitting material and passes through the light outlet hole.

6. The oil stain detection device according to claim 5, characterized in that, The end of the light guide column away from the light source extends into the hot air cavity, and the end of the sleeve away from the baffle is connected to the light guide column.

7. The oil stain detection device according to claim 6, characterized in that, The dirt-collecting component is located at one end of the sleeve near the baffle, and the dirt-collecting component and the light guide post are spaced apart in a direction parallel to the light path.

8. A cooking device, characterized in that, The cooking device includes an oil stain detection device as described in any one of claims 1-7, and also includes an inner pot, with the baffle connected to the inner pot. The inner pot is hollow inside to form a cooking cavity with an open front end, together with the baffle. The baffle is located on the side of the cooking cavity away from the open end, and the light source is located on the side of the baffle away from the cooking cavity.

9. The cooking apparatus according to claim 8, characterized in that, The baffle is rotatably disposed relative to the inner liner between a working position and a cleaning position. The baffle includes an outer end face and an inner end face disposed opposite to each other. When the baffle is in the working position, the outer end face faces the opening and is parallel to the plane where the opening is located, and the light-transmitting hole is located opposite the light source. When the baffle is in the cleaning position, the inner end face is disposed at an angle to the plane where the opening is located.

10. The cooking apparatus according to claim 9, characterized in that, The baffle can rotate at an angle of not less than 90° between the working position and the cleaning position.

11. The cooking apparatus according to claim 9, characterized in that, The cooking device also includes a flipping assembly connected to the inner pot and the baffle, which is used to drive the baffle to rotate relative to the inner pot between a working position and a cleaning position.

12. The cooking apparatus according to claim 11, characterized in that, The flipping assembly includes a base and a connecting rod. The base is located on the side of the baffle away from the cooking cavity, and the two ends of the connecting rod are rotatably connected to the base and the baffle, respectively.

13. The cooking apparatus according to claim 12, characterized in that, The flipping assembly further includes an active rod and a fixed rod. The fixed rod is connected to the inner end face, and the two ends of the active rod are rotatably connected to the base and the fixed rod, respectively. The end of the connecting rod connected to the baffle and the end of the active rod connected to the fixed rod are spaced apart in a direction perpendicular to the inner end face. The end of the active rod connected to the base and the end of the connecting rod connected to the base are spaced apart in a direction parallel to the inner end face of the baffle when it is in the working position.

14. The cooking apparatus according to claim 13, characterized in that, The flipping assembly also includes a drive member connected to the drive rod and used to drive the drive rod to rotate relative to the base.

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