Oil stain detection device and cooking equipment

Abstract

The utility model relates to an oil stain detection device and cooking equipment. The oil stain detection device comprises a baffle, a light source, a reflecting mirror and a light ray receiving part, the baffle is provided with a light emitting hole penetrating through the baffle. The light source emits light beams; the reflector is located on the back side of the baffle, located on a light path of the light beam and used for reflecting the light beam, the surface of the reflector can adsorb oil stains, and the oil stains on the surface of the reflector interfere with reflection of the light beam by the reflector; the light receiving member is connected to the baffle plate and is aligned with the light outlet hole so as to receive the light beam reflected by the reflector. According to the scheme, the oil stain content in the baffle back side space is reversely deduced by monitoring the light intensity of the light beams penetrating through the light outlet holes, the problem that oil stains on the baffle back side cannot be observed is solved, and the technical effect of automatically reminding a user to clean the baffle back side is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, in particular to an oil stain detection device and a cooking device. BACKGROUND

[0002] A cooking device such as a steam oven usually uses the radiant heat emitted by an electric heating element to roast food. The temperature of the roasting cooking device can be adjusted within a range of 50℃ to 250℃ according to different needs of roasting food. The back of the inner container of the cooking device with a roasting function is provided with a heat blower baffle, and the back of the heat blower baffle is provided with a heating pipe and a fan blade to form a hot air chamber for hot air circulation in the cooking chamber.

[0003] During the operation of the cooking device, oil stains generated in the cooking chamber can splash on the heat blower baffle. In addition, the heat 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 accumulation of oil stains on the back of the heat blower baffle. On the one hand, since the heat blower baffle is usually fixedly connected to the inner container, only the air outlet and the air inlet can observe the inside of the heat blower baffle, causing the user to be unable to know whether the back of the baffle has accumulated oil stains in time, so that the back of the baffle cannot be cleaned in time. In the long run, the accumulated oil stains can cause the inner container of the cooking device to produce an odor and other problems. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide an oil stain detection device and a cooking device to solve the problem of inconvenient observation of the oil stains on the back of the heat blower baffle in the existing cooking device.

[0005] An oil stain detection device comprises a baffle, a light source, a mirror and a light receiving member. The baffle is provided with a light outlet hole penetrating the baffle. The light source is used to emit a light beam. The mirror is located on the back side of the baffle and is located on the light path of the light beam and used to reflect the light beam. The mirror is configured to have a surface capable of adsorbing oil stains, and the oil stains on the surface of the mirror interfere with the reflection of the light beam by the mirror. The light receiving member is connected to the baffle and located on the light outlet hole to receive the light beam reflected by the mirror.

[0006] In one of the embodiments, the oil stain detection device further comprises a back plate located on the back side of the baffle, and the back plate and the baffle jointly enclose a hot air chamber with oil stains, and the mirror is located in the hot air chamber.

[0007] In one of the embodiments, the light source is located on the side of the back plate away from the baffle, and the back plate is provided with a light inlet hole penetrating the back plate. The light inlet hole is located on the light source so that the light beam passes through the light outlet hole.

[0008] In one of the embodiments, the light beam emitted by the light source passes through the light inlet hole in a direction perpendicular to the plane where the back plate is located.

[0009] In one of the embodiments, the number of the mirrors is multiple, and the multiple mirrors are arranged along the light path of the light beam in sequence and used for reflecting the light beam.

[0010] In one of the embodiments, the mirror comprises a first mirror surface and a second mirror surface arranged in sequence along the light path of the light beam, the first mirror surface is located opposite to the light source, and the first mirror surface is used for reflecting the light beam from the light source to the second mirror surface, the second mirror surface is located opposite to the light outlet hole, and the second mirror surface is used for reflecting the light beam from the first mirror surface to the light receiving member.

[0011] In one of the embodiments, the first mirror surface and the second mirror surface are arranged oppositely and in parallel.

[0012] In one of the embodiments, the included angle between the first mirror surface and the baffle and the included angle between the second mirror surface and the baffle are both 45°.

[0013] A cooking device, which comprises the oil stain detection device as described in any one of the above embodiments, and further comprises an inner container, the baffle is connected to the inner container, the inner container is hollow inside to jointly form a cooking cavity with the baffle, the cooking cavity has an open front end, and the baffle is located on the side of the cooking cavity away from the open end.

[0014] In one of the embodiments, the baffle is rotatably arranged between the working position and the cleaning position relative to the inner container, the baffle comprises an outer end surface and an inner end surface arranged oppositely, when the baffle is in the working position, the outer end surface faces the open end and is parallel to the plane where the open end is located, and when the baffle is in the cleaning position, the inner end surface is arranged at an included angle with the plane where the open end is located.

[0015] In one of the embodiments, the cooking device further comprises a turnover assembly, the turnover assembly is connected to the inner container and the baffle, and used for driving the baffle to rotate relative to the inner container between the working position and the cleaning position.

[0016] The oil stain detection device provided in the above solution, by setting a light-emitting hole and a corresponding light-receiving device on the baffle, and setting a light source and a reflector on the back side of the baffle, can reduce the light reflectivity of the reflector by the accumulation of oil stains, thereby observing the light intensity that can be observed through the light-emitting hole after the light source propagates through the reflector to judge the propagation effect of the reflector on the light beam. This allows the amount of oil stains on the surface of the reflector to be inferred, and thus the oil stain content in the space where the reflector is located. This achieves the effect of inferring the oil stain content in the space on the back side of the baffle by monitoring the light intensity of the light beam passing through the light-emitting 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

[0017] Figure 1 This is a schematic diagram of the baffle of the cooking device in the working position according to one embodiment of this application.

[0018] Figure 2 for Figure 1 A schematic diagram of the oil spill detection device.

[0019] Figure 3 for Figure 2 A cross-sectional structural diagram of the oil spill detection device.

[0020] Figure 4 for Figure 1 A partial structural cross-sectional diagram of a Chinese cooking device.

[0021] Figure 5 for Figure 1 A schematic diagram of the baffle of a cooking appliance in the cleaning position.

[0022] Figure 6 for Figure 5 A cross-sectional structural diagram of a Chinese cooking device.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Cooking equipment; 110. Oil stain detection device; 111. Baffle; 1111. Light outlet; 1112. Outer end face; 1113. Inner end face; 112. Light source; 113. Reflector; 1131. First mirror; 1132. Second mirror; 114. Light receiver; 115. Back plate; 1151. Light inlet; 116. Hot air cavity; 120. Inner liner; 121. Cooking cavity; 130. Flipping assembly; 131. Base; 132. Connecting rod; 133. Drive rod; 134. Fixing rod; 135. Drive component; 136. Conversion component. Detailed Implementation

[0025] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0026] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless specifically defined otherwise, if there is a description of a first feature on or above or below a second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be above or above or above the second feature, or the first feature can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature can be below or below or below the second feature, or the first feature can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0030] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0031] Referring to Figure 1 , Figure 1 The structure of the oil stain detection device 110 in an embodiment of the present application is shown. The cooking device 100 provided by an embodiment of the present application can be an oven, a steam oven, or any existing device with cooking function. The cooking device 100 includes the oil stain detection device 110 as described in any of the embodiments below, and further includes an inner container 120. The baffle 111 in the oil stain detection device 110 is connected to the inner container 120. The inner container 120 is hollow inside to form a cooking cavity 121 with the baffle 111, which is open at the front end, for cooking food. Figure 1 As shown, the baffle 111 is located on the side of the cooking cavity 121 away from the opening.

[0032] In combination with Figure 2 As shown, Figure 2 The exploded structure of the oil stain detection device 110 in an embodiment of the present application is shown. The oil stain detection device 110 provided by an embodiment of the present application is used to detect the oil stain content, which serves as a basis for judging whether the oil stain needs to be cleaned.

[0033] As Figure 2As shown, the oil stain detection device 110 includes a baffle 111, a light source 112, a mirror 113 and a light receiving member 114. The baffle 111 is provided with a light outlet hole 1111 penetrating the baffle 111, so that the light source 112 can pass through the light outlet hole 1111 to facilitate observation on the side of the baffle 111 away from the light source 112. The light source 112 is used to emit a light beam. In the present embodiment, the light source 112 can be an LED lamp (light-emitting diode lamp). In other embodiments, the light source 112 can also be an incandescent lamp, a laser diode, etc.

[0034] As shown in Figure 2 and Figure 3 , the mirror 113 is located on the back side of the baffle 111, and the mirror 113 is in the light path of the light beam and is used to reflect the light beam. The mirror 113 is configured to have a surface capable of adsorbing oil stains. The oil stains on the surface of the mirror 113 interfere with the reflection of the light beam by the mirror 113. The amount of oil stains on the surface of the mirror 113 and the propagation effect of the light beam by the mirror 113 are inversely related. The accumulation of oil stains will cause the mirror surface of the mirror 113 to lose luster and reduce its light reflectivity. The propagation effect of the light beam by the mirror 113 is determined by observing the light intensity of the light beam that can be observed from the light outlet hole 1111 after the light beam is transmitted through the mirror 113, thereby deducing the amount of oil stains on the surface of the mirror 113, and further determining the oil stain content in the space where the mirror 113 is located. This achieves the effect of deducing the oil stain content in the space on the back side of the baffle 111 by observing the light intensity of the light beam transmitted through the light outlet hole 1111, solves the problem that the oil stains on the back side of the baffle 111 cannot be observed, and achieves the technical effect of automatically reminding the user to clean the back of the baffle 111.

[0035] As shown in Figure 2 and Figure 3 , the light receiving member 114 is connected to the baffle 111 and is located on the light outlet hole 1111 to receive the light beam reflected by the mirror 113. The function of the light receiving member 114 is to receive the light signal and convert it into an electrical signal for subsequent processing or transmission. Exemplarily, the light receiving member 114 can be a photodiode or a photoresistor. Preferably, the light receiving member 114 is connected to a signal processing unit, which can deduce the amount of oil stains on the surface of the mirror 113 according to the light intensity of the mirror 113 received by the light receiving member 114, and further determine the oil stain content in the space where the mirror 113 is located. Exemplarily, the light intensity received by the light receiving member 114 when there is no oil stain on the surface of the mirror is taken as a standard value. The light intensity received in real time during the use of the cooking device 100 is compared with the preset standard value to determine whether there is oil stain.

[0036] As shown in Figure 2 and Figure 3As shown in the drawings, in one embodiment, the oil detection device 110 further comprises a back plate 115 located at the back side of the baffle 111, and the back plate 115 and the baffle 111 jointly enclose a hot air chamber 116 in which oil exists. In the cooking device 100, the hot air chamber 116 is used to communicate with the cooking chamber 121 for hot air circulation. Since oil is generated during the cooking process of the food in the cooking chamber 121, oil particles may enter the hot air chamber 116 along with the circulating hot air and accumulate in the hot air chamber 116. When the mirror 113 is located inside the hot air chamber 116, the amount of light beam passing through the light hole 1111 can be observed from the side of the baffle 111 facing the cooking chamber 121, and the oil content in the hot air chamber 116 where the mirror 113 is located can be inferred.

[0037] As shown in the drawings, Figure 2 and Figure 3 In one embodiment, the light source 112 is located on the side of the back plate 115 away from the baffle 111, and the light source 112 is located outside the hot air chamber 116 to avoid being affected by heat, moisture and oil in the circulating hot air. The back plate 115 is provided with a light inlet hole 1151 penetrating the back plate 115, and the light inlet hole 1151 is located on the light source 112 to allow the light beam to pass through the light hole 1111.

[0038] As shown in the drawings, Figure 3 In one embodiment, the light beam emitted by the light source 112 passes through the light inlet hole 1151 in a direction perpendicular to the plane of the back plate 115, so as to facilitate the installation of the light source 112.

[0039] As shown in the drawings, Figure 2 and Figure 3 In one embodiment, the number of mirrors 113 is multiple, and the multiple mirrors 113 are arranged in sequence along the light path of the light beam and used for reflecting the light beam. When any surface of the mirror 113 adsorbs oil, the light intensity of the mirror 113 received by the light receiver 114 will be affected, thereby amplifying the effect of oil on the surface of the mirror 113 on the light intensity, so that the judgment of whether there is oil on the surface of the mirror is more sensitive, and the judgment structure obtained by the multiple mirrors 113 is more reliable than that obtained by a single mirror 113.

[0040] As shown in the drawings, Figure 2 and Figure 3As shown in the drawings, in one of the embodiments, the mirror 113 includes a first mirror surface 1131 and a second mirror surface 1132 arranged in sequence along the light path of the light beam, the first mirror surface 1131 is located at the light source 112, and the first mirror surface 1131 is used to reflect the light beam from the light source 112 to the second mirror surface 1132, the second mirror surface 1132 is located at the light exit hole 1111, and the second mirror surface 1132 is used to reflect the light beam from the first mirror surface 1131 to the light receiving member 114. After the light beam passes through the light entrance hole 1151 from the light source 112, it is reflected by the first mirror surface 1131 and the second mirror surface 1132 in sequence, and then passes through the light exit hole 1111 to be received by the light receiving member 114.

[0041] As shown in the drawings, Figure 2 and Figure 3 in one of the embodiments, the first mirror surface 1131 and the second mirror surface 1132 are arranged opposite and parallel to each other, and when the light is vertically incident into the light entrance hole 1151, it will also be vertically through the light exit hole 1111, so that the light beam received by the light receiving member 114 is more stable, avoiding the influence of the structure of the light exit hole 1111.

[0042] As shown in the drawings, Figure 3 in one of the embodiments, the angle between the first mirror surface 1131 and the baffle 111, and the angle between the second mirror surface 1132 and the baffle 111 are both 45°, so as to facilitate installation.

[0043] The oil detection device 110 provided in the above scheme, the light source 112 emits light towards the first mirror surface 1131, the light is reflected by the first mirror surface 1131 to the second mirror surface 1132, and then reflected by the second mirror surface 1132 to the light exit hole 1111 where the light receiving member 114 is located. If there is oil stain on the mirror surface of the first mirror surface 1131 or the second mirror surface 1132 at this time, the oil stain will reduce the reflectivity of the light, resulting in a decrease in the intensity of the reflected light. The light receiving member 114 captures the light reflected from the second mirror surface 1132, measures the received light intensity through the signal processing unit, compares the current received light intensity with the preset standard value, and judges whether there is oil stain, thereby achieving the effect of reflecting the oil content in the space on the back side of the baffle 111 by monitoring the light intensity of the light beam passing through the light exit hole 1111, solving the problem that the oil stain on the back side of the baffle 111 cannot be observed, and achieving the technical effect of automatically reminding the user to clean the back of the baffle 111.

[0044] As shown in the drawings, Figures 4 to 6 in one of the embodiments, the baffle 111 can be rotatably arranged relative to the inner container 120 between the working position as shown in the drawings Figure 1 and Figure 4 and the cleaning position as shown in the drawings Figure 5 and Figure 6 so as to facilitate cleaning of the baffle 111 when it needs to be cleaned.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 116 and the cooking chamber 121, so that the cooking chamber 121 can be used to cook food. 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 115 facing the baffle 111.

[0045] like Figure 6 As 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 115 facing the baffle 111, and the components inside the hot air chamber 116.

[0046] 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.

[0047] 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 116 and connected to the end face of the back plate 115 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.

[0048] like Figure 4 and Figure 6As shown in the drawings, in one embodiment, the turnover assembly 130 further comprises a driving 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 driving rod 133 are respectively rotatably connected to the base 131 and the fixed rod 134, the connecting rod 132 is connected to one end of the baffle 111 and one end of the driving rod 133 connected to the fixed rod 134 is arranged in a direction perpendicular to the inner end face 1113, and the end of the driving rod 133 connected to the base 131 and the end of the connecting rod 132 connected to the base 131 are arranged in a direction parallel to the inner end face 1113 when the baffle 111 is in the working position, so that the driving rod 133, the fixed rod 134, the connecting rod 132 and the base 131 form a four-bar linkage structure, thereby realizing the turnover of the baffle 111 when the driving rod 133 rotates.

[0049] As shown in the drawings, Figure 4 and Figure 6 In one embodiment, the turnover assembly 130 further comprises a driving member 135, the driving member 135 is connected to the driving rod 133 and is used to drive the driving rod 133 to rotate relative to the base 131, thereby realizing the turnover of the baffle 111. As shown in the drawings, Figure 6 and Figure 6 In this embodiment, the turnover assembly 130 further comprises a conversion member 136 for converting the rotation direction of the driving shaft of the driving member 135, realizing the right-angle reversing, so that the driving member 135 can be located outside the hot air cavity 116 and mounted on the end face of the back plate 115 away from the baffle 111, thereby avoiding the interference of the heat, moisture and oil stains in the hot air cavity 116 on the driving member 135.

[0050] As shown in the drawings, Figure 6 In one embodiment, the fixed 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 fixed rod 134, so as to facilitate the installation of the connecting rod 132 and the driving rod 133, and in other embodiments, the fixed rod 134 can also be arranged obliquely relative to the inner end face 1113.

[0051] As shown in the drawings, Figure 6 In one embodiment, the connecting rod 132 is connected to one end of the fixed rod 134 close to the baffle 111, so as to facilitate the installation of the connecting rod 132, avoid the interference of the connecting rod 132 connected to the baffle 111 on the inherent structure of the baffle 111, thereby avoiding the interference of the turnover mechanism on other functions of the baffle 111, and avoiding the increase of production cost.

[0052] As shown in the drawings, ​As shown in the drawings, in one embodiment, the base 131 is arranged in the height direction, and the active rod 133 is connected to one end of the base 131 and the connecting rod 132 is connected to one end of the base 131 and arranged in the height direction, so that when the baffle 111 is flipped relative to the inner container 120, the flipping axis is arranged in the horizontal direction. In other embodiments, the base 131 can also be arranged in the horizontal direction, and the active rod 133 and the connecting rod are spaced apart in the horizontal direction, so that when the baffle 111 is flipped relative to the inner container 120, the flipping axis is arranged in the height direction.

[0053] As shown in the drawings, ​ As shown in the drawings, in one embodiment, the connecting rod 132 is connected to one end of the base 131 above the end of the base 131 connected to the active rod 133, so as to realize the rotation of the active rod 133 to drive the baffle 111 to flip. In other embodiments, the connecting rod 132 can also be connected to one end of the base 131 below the end of the base 131 connected to the active rod 133, and the active rod 133 can also be rotated to drive the baffle 111 to flip.

[0054] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0055] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent protection of the present application should be subject to the appended claims.

Claims

1. An oil contamination detection device, characterized by comprising: The oil stain detection device comprises: a baffle plate, which is provided with a light outlet hole penetrating through the baffle plate; a light source, which is configured to emit a light beam; a mirror, which is located at the back side of the baffle plate and is located in the light path of the light beam and is configured to reflect the light beam, the mirror is configured to have a surface capable of adsorbing oil stains, and the oil stains on the surface of the mirror interfere with the reflection of the light beam by the mirror; and a light receiving member, which is connected to the baffle plate and is located at the light outlet hole to receive the light beam reflected by the mirror.

2. The oil contamination detection device according to claim 1, characterized by The oil stain detection device further comprises a back plate, which is located at the back side of the baffle plate, and the back plate and the baffle plate jointly enclose a hot air cavity in which oil stains exist, and the mirror is located in the hot air cavity.

3. The oil contamination detection device according to claim 2, characterized by The light source is located on the side of the back plate away from the baffle plate, and the back plate is provided with a light inlet hole penetrating through the back plate, and the light inlet hole is located at the light source so that the light beam passes through the light outlet hole.

4. The oil contamination detection device according to claim 3, characterized by The light beam emitted by the light source passes through the light inlet hole in a direction perpendicular to the plane in which the back plate is located.

5. The oil stain detecting apparatus according to claim 1 or 2, characterized by The number of mirrors is multiple, and multiple mirrors are sequentially arranged along the light path of the light beam and are configured to reflect the light beam.

6. The oil contamination detection device according to claim 5, characterized by The mirror comprises a first mirror surface and a second mirror surface arranged sequentially along the light path of the light beam, the first mirror surface is located at the light source, and the first mirror surface is configured to reflect the light beam from the light source to the second mirror surface, the second mirror surface is located at the light outlet hole, and the second mirror surface is configured to reflect the light beam from the first mirror surface to the light receiving member.

7. The oil contamination detection apparatus according to claim 6, characterized by The first mirror surface and the second mirror surface are oppositely and parallelly arranged.

8. The oil contamination detection device according to claim 7, characterized by The included angle between the first mirror surface and the baffle plate and the included angle between the second mirror surface and the baffle plate are both 45°.

9. A cooking apparatus, characterized by, The cooking device comprises the oil stain detection device as claimed in any one of claims 1-8, and further comprises an inner container, the baffle plate is connected to the inner container, the inner container is hollow inside to jointly enclose a cooking cavity with an open front end with the baffle plate, and the baffle plate is located on the side of the cooking cavity away from the opening.

10. The cooking apparatus according to claim 9, wherein The baffle plate is rotatably arranged between a working position and a cleaning position relative to the inner container, the baffle plate comprises an outer end surface and an inner end surface arranged oppositely, when the baffle plate is in the working position, the outer end surface faces the opening and is parallel to the plane in which the opening is located, and when the baffle plate is in the cleaning position, the inner end surface is arranged at an angle with the plane in which the opening is located.

11. The cooking apparatus according to claim 10, wherein, The cooking device further comprises a turnover assembly, which is connected to the inner container and the baffle plate and is configured to drive the baffle plate to rotate relative to the inner container between the working position and the cleaning position.

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