Cooking equipment

Abstract

The utility model provides cooking equipment. The cooking equipment comprises a shell; the first heating device is installed in the shell and located on the first side of the shell; the first reflecting piece is arranged in the shell and located between the inner wall of the first side and the first heating device, and the first reflecting piece is a reflecting cover protruding in the direction away from the first heating device; the second reflecting part is arranged in the shell and located on the side, away from the first reflecting part, of the first heating device, and heat reflected by the first reflecting part can be radiated to the side, away from the first heating device, of the second reflecting part. Through multiple times of reflection of heat between the first reflection piece and the second reflection piece, the radiation range of the heat can be expanded, the heat radiated in different areas can be balanced, the heat is prevented from being concentrated near the heating device, and therefore the heat finally radiated to food materials in the direction of the shell is more uniform, and the food materials are more uniform. And uniform heating of food materials is realized.

Description

Technical Field

[0001] This application relates to the field of household appliances, and more particularly, to a cooking device. Background Art

[0002] For cooking devices such as ovens and grills, a dry-heating heating device is provided in the cooking cavity, and the heating device mainly transfers heat to food by radiation. However, due to reasons such as the installation position and structural form of the heating device, the heat radiated by the heating device to the ingredients in different areas of the cooking cavity is not uniform. In this way, the surface of the food facing the heating device is unevenly heated, resulting in poor cooking effects.

[0003] Therefore, how to design a cooking device that can uniformly heat ingredients has become an urgent problem to be solved at present. Utility Model Content

[0004] This application aims to at least solve the problem that the cooking device in the prior art or related art cannot uniformly heat the ingredients in the cooking cavity.

[0005] For this reason, the purpose of this application is to provide a cooking device.

[0006] The technical solution of this application provides a cooking device, including: a housing; a first heating device installed in the housing and located on the first side of the housing; a first reflector provided in the housing and located between the inner wall of the first side and the first heating device, the first reflector being a reflector cover protruding away from the first heating device; a second reflector provided in the housing and located on the side of the first heating device away from the first reflector, and the heat reflected by the first reflector can radiate to the side of the second reflector away from the first heating device.

[0007] According to the cooking device provided by this application, it includes a housing, a first heating device, a first reflector and a second reflector. The first heating device is installed in the housing and located on the first side of the housing, and is used to heat the ingredients in the housing. The first reflector is provided on the side of the first heating device away from the center of the housing, and is used to radiate the heat generated by the first heating device towards the center direction of the housing. The second reflector is provided on the side of the first heating device close to the center of the housing. After the heat radiated by the first heating device reaches the second reflector, it can be reflected by the second reflector. In this way, the heat radiated by the first heating device can be reflected multiple times between the first reflector and the second reflector, thereby forming a diffuse reflection. Through the multiple reflections of the heat between the first reflector and the second reflector, the radiation direction of the heat can be expanded, thereby expanding the range of heat radiation, and the heat radiated in different areas can be made more balanced, avoiding the concentration of heat near the heating device. In this way, the heat finally radiated towards the housing onto the ingredients is more uniform, achieving uniform heating of the ingredients.

[0008] Among them, the first reflector is a reflecting cover protruding away from the first heating device, so that heat can be reflected towards the center of the housing, thereby concentrating the heat relatively and avoiding the heat being reflected outside the housing.

[0009] In any of the above technical solutions, optionally, the reflecting cover is an arc-shaped cover.

[0010] The structure of the arc-shaped cover makes the reflecting cover relatively easy to process. At the same time, the arc-shaped cover also makes the heat reflection effect of different regions of the reflecting cover more balanced, avoiding the occurrence of uneven heat due to different reflection effects in different regions of the reflecting cover.

[0011] In any of the above technical solutions, optionally, the surface of the arc-shaped cover away from the first heating device is an arc surface, and the radius of the arc surface is greater than or equal to 150 mm and less than or equal to 1000 mm.

[0012] This setting makes the size of the arc-shaped cover relatively moderate. On the one hand, it can cover the entire first heating device, and on the other hand, it can also avoid the arc-shaped cover being too large and difficult to install. During design, the arc radius of the arc-shaped cover can be reasonably set according to the actual size of the cooking device.

[0013] In any of the above technical solutions, optionally, the cooking device further includes: a heat insulation plate, arranged on the side of the first reflector away from the first heating device, and a first spacing is provided between the heat insulation plate and the first reflector.

[0014] In this technical solution, the heat insulation plate is arranged close to the inner wall of the housing, and the first reflector, the first heating device, etc. are arranged inside the heat insulation plate. Through the heat insulation plate, the heat of the first reflector can be prevented from being dissipated by the inner wall of the housing, thus forming a heat insulation and heat preservation effect on the housing. At the same time, the first reflector and the heat insulation plate are spaced apart, so that an air heat insulation channel can be formed between the first reflector and the heat insulation plate, thereby further enhancing the heat insulation and heat preservation effect of the housing.

[0015] In any of the above technical solutions, optionally, the cooking device further includes: a plurality of support members, installed on the inner wall of the first side of the housing, and the first reflector is installed on the plurality of support members.

[0016] In this technical solution, the first reflector can be suspended and installed on the housing through the plurality of support members, thereby ensuring the spacing between the first reflector and the heat insulation plate. Avoid heat transfer between the first reflector and the heat insulation plate by contact.

[0017] Among them, the number of support members is multiple and is along the circumferential edge of the first reflector.

[0018] In any of the above technical solutions, optionally, the second reflector includes: a plurality of reflecting portions, and at least one first overheating channel is formed by enclosing the plurality of reflecting portions. At least one first overheating channel is formed between the second reflector and the inner wall of the housing. The heat reflected by the first reflector can be radiated to the side of the second reflector away from the first heating device through the first overheating channel.

[0019] In this technical solution, the second reflector includes a plurality of reflecting portions. An overheating channel for heat to pass through is formed between different reflecting portions. Or a first overheating channel is formed between the second reflector and the inner wall of the housing. Through the first overheating channel, the two sides of the second reflector can communicate with each other, so that heat can be radiated from one side of the second reflector to the other side of the second reflector and then to the food ingredients.

[0020] Among them, the plurality of reflecting portions are connected to form an integral body. This facilitates the synchronous installation of the plurality of reflecting portions.

[0021] In any of the above technical solutions, optionally, the first heating device includes: a plurality of heating portions, and at least one second overheating channel is formed between the plurality of heating portions; the plurality of reflecting portions are arranged in one-to-one correspondence with the plurality of heating portions.

[0022] In this technical solution, at least one second overheating channel is formed between the plurality of heating portions, so that the first heating device can be relatively widely distributed, and the heat can be relatively more dispersed. At the same time, the setting of the second overheating channel also facilitates the multiple reflections of heat between the first reflector and the second reflector, so that the heat can be radiated more evenly to the food ingredients, avoiding the blocking of heat radiation by the first heating device, and ensuring the heating efficiency.

[0023] Exemplarily, a second overheating channel is formed between the first heating device and the inner wall of the housing. The heat reflected by the first reflector can be radiated to the side of the second reflector away from the first heating device through the second overheating channel to achieve radiant heating of the food ingredients.

[0024] In any of the above technical solutions, optionally, the reflecting portion is recessed in a direction away from the first heating device.

[0025] In this technical solution, this setting can, on the one hand, increase the area of the reflecting portion and improve the efficiency of its heat reflection. On the other hand, it can reflect heat back from different directions and also receive heat from different directions, so as to improve the reflection effect of the reflecting portion and thus ensure the heating efficiency.

[0026] Optionally, the reflecting portion includes at least one of an arc-shaped reflecting portion, a V-shaped reflecting portion, and a U-shaped reflecting portion. The shape of the reflecting portion can be reasonably set according to needs, including but not limited to arc-shaped, U-shaped, and V-shaped.

[0027] In any of the above technical solutions, optionally, the arc-shaped reflecting part includes a circular arc-shaped reflecting part, and the diameter of the arc-shaped reflecting part is greater than or equal to 5 mm and less than or equal to 30 mm. This kind of setting can ensure that the reflecting part has a certain area, so as to ensure the reflection effect of the reflecting part.

[0028] In any of the above technical solutions, optionally, the V-shaped reflecting part includes a first reflecting section and a second reflecting section connected in a V shape, and the included angle between the first reflecting section and the second reflecting section is greater than or equal to 60° and less than or equal to 180°.

[0029] This kind of setting can ensure that the reflecting part has a certain area, so as to ensure the reflection effect of the reflecting part. Among them, the opening angle β of the V-shaped reflecting part can be set to 60°-180° as needed. Exemplarily, the opening angle of the V-shaped reflecting part can be set to 60°-120° as needed, such as 90°.

[0030] In any of the above technical solutions, optionally, the second reflecting member is installed on the first heating device, and / or the second reflecting member is installed on the first reflecting member.

[0031] The second reflecting member can be installed on the first heating device as needed, or directly installed on the first reflecting member. During design, the installation position and installation method of the second reflecting member can be determined according to the actual situation.

[0032] In any of the above technical solutions, optionally, the first heating device, the first reflecting member and the second reflecting member are arranged on the top of the housing.

[0033] The first heating device, the first reflecting member and the second reflecting member can radiate heat downward from the top of the housing, so as to realize top heating of the food ingredients. And top heating can make the food ingredients heated more evenly and can also make the heating surface of the food ingredients wider. Of course, in other embodiments, according to the type of cooking device, the first heating device, the first reflecting member and the second reflecting member can be installed as a component at the bottom of the housing, or on the left and right sides or at the rear.

[0034] In any of the above technical solutions, optionally, the cooking device further includes: an oil filter screen, which is arranged on the surface of the first heating device away from the first reflecting member or on one side of the first heating device away from the first reflecting member.

[0035] In this technical solution, the oil filter screen is used to effectively reduce the probability of oil splashing onto the first heating device, the first reflecting member and the second reflecting member during the cooking process, so as to form an anti-oil protection for the first heating device, the first reflecting member and the second reflecting member, thus facilitating the cleaning of the cooking device.

[0036] In any of the above technical solutions, optionally, the first heating device includes a heating tube, and the heating tube includes a plurality of segmented tubes arranged at intervals in a first direction.

[0037] In this technical solution, the first heating device includes a heating tube, and the heating tube includes a plurality of segmented tubes. The food ingredients can be heated dispersedly through the plurality of segmented tubes. At the same time, the plurality of segmented tubes are arranged at intervals, and a first overheating channel can be formed, so as to facilitate the heat to be reflected back and forth between the first reflector and the second reflector. In addition, the first heating device formed by the heating tube also makes the first heating device relatively simple, thereby reducing the cost.

[0038] In any of the above technical solutions, optionally, the plurality of segmented tubes are symmetrically arranged with respect to an axis of symmetry. This setting can make the distribution of the first heating device more uniform, so as to heat the food ingredients more evenly. The plurality of segmented tubes are connected end to end in sequence, so that the plurality of segmented tubes can be connected into one body and then disassembled and assembled as a whole.

[0039] Specifically, two heating tubes can be bent to form two sets of symmetrically arranged heating structures. Or the same heating tube can be bent towards the middle at the same time to form two sets of symmetrically arranged heating structures.

[0040] In any of the above technical solutions, optionally, two segmented tubes adjacent to the axis of symmetry are connected by a connecting plate.

[0041] In this technical solution, the same heating tube can be bent towards the middle at the same time to form two sets of symmetrically arranged heating structures, and then the two ends of the heating tube are connected by a connecting plate. At the same time, power can be supplied to the heating tube through the connecting plate.

[0042] In any of the above technical solutions, optionally, the plurality of segmented tubes are formed by bending the same heating tube.

[0043] This setting makes the structure of the first heating device relatively simple, thus facilitating processing and also facilitating power supply to the first heating device.

[0044] In any of the above technical solutions, optionally, among at least two segmented tubes on the same side of the axis of symmetry, a connecting tube section is formed between any two mutually connected segmented tubes. The two outermost segmented tubes in the first direction are connected by a first connecting tube. The first connecting tube is located on one side of the plurality of segmented tubes along their axial direction and is axially spaced from the connecting tube section on the first side. The first connecting tube is located outside the connecting tube section on its side and there is a second spacing between the first connecting tube and the connecting tube section on its side.

[0045] In this technical solution, the distances between multiple segmented pipes are the same. A second distance is provided between the first connecting pipe and the connecting pipe segment on its side, outside the connecting pipe segment on its side, so that different parts of the heating pipe can be arranged more dispersedly, thereby avoiding the blocking of heat radiation by the heating pipe.

[0046] In any of the above technical solutions, optionally, the number of segmented pipes is 6. From the first side to the second side along the first direction, the 6 segmented pipes are successively the No. 1 segmented pipe, the No. 2 segmented pipe, the No. 3 segmented pipe, the No. 4 segmented pipe, the No. 5 segmented pipe, and the No. 6 segmented pipe. The center distance between the No. 3 segmented pipe and the No. 4 segmented pipe is a, the center distance between the No. 2 segmented pipe and the No. 5 segmented pipe is b, and the center distance between the No. 1 segmented pipe and the No. 6 segmented pipe is c. The center distance between the first connecting pipe and the connecting pipe segment on the side opposite to its side is e. The center distance between the first connecting pipe and the connecting pipe segment on its side is d. Wherein, a / b is greater than or equal to 2 / 7 and less than or equal to 3 / 5, a / c is greater than or equal to 2 / 11 and less than or equal to 1 / 3, and d / e is greater than or equal to 1 / 11 and less than or equal to 1 / 5.

[0047] This kind of setting makes different parts of the heating pipe arranged more dispersedly, so that a larger overheating channel can be formed to facilitate the back-and-forth reflection of heat between the first reflector and the second reflector.

[0048] In any of the above technical solutions, optionally, the housing includes: a first cover assembly; a second cover assembly, which is arranged opposite to the first cover assembly and encloses a cooking cavity, and the first cover assembly can be opened or closed relative to the second cover assembly. The first heating device, the first reflector and the second reflector are arranged on the side of the first cover assembly close to the second cover assembly. The first cover assembly and the second cover assembly are arranged opposite to each other in the up-and-down direction of the cooking device, and the first cover assembly is rotatably mounted above the second cover assembly. Optionally, the second cover assembly includes: a first outer shell, on which a first receiving groove is provided; a baking tray, mounted in the first receiving groove; and a second heating device, arranged between the first outer shell and the baking tray.

[0049] In this technical solution, the cooking device is of the structure of an electric griddle. At this time, the first heating device, the first reflector and the second reflector can be arranged on the upper cover assembly of the electric griddle to form a diffuse reflection at the top of the electric griddle-type cooking device, so as to realize uniform heating of the food ingredients. Heating devices are arranged on both the first cover assembly and the second cover assembly, so that double-sided heating of the food ingredients can be realized.

[0050] In any of the above technical solutions, optionally, one end of the first cover assembly is hinged to one end of the second cover assembly through a hinge assembly. The hinge assembly includes a hinge cover and a hinge shaft, and the first cover assembly and the second cover assembly are hinged through the hinge shaft. The hinge cover is used to shield the side of the hinge shaft away from the first cover assembly and the second cover assembly to protect the hinge shaft.

[0051] In any of the above technical solutions, optionally, the cooking device further includes: an exhaust passage provided on the first cover assembly and / or the second cover assembly, and communicating with the cooking cavity and the outside of the first cover assembly or the second cover assembly. Through the exhaust passage, the water vapor in the cooking cavity can be discharged during the process of cooking food. At the same time, through this exhaust passage, the pressure inside and outside the cooking cavity can be ensured to be consistent.

[0052] In any of the above technical solutions, optionally, the first cover assembly includes: a second outer shell, on which a second receiving groove is provided, and the notch of the second receiving groove faces the second cover assembly; a heat insulation plate located inside the second outer shell; air guiding ribs provided on the inner wall surface of the first outer shell, and the air guiding ribs and the heat insulation plate enclose at least one air duct; a first heating device, a first reflector and a second reflector are arranged on the side of the heat insulation plate away from the second outer shell; a heat dissipation fan is arranged in the air duct; an air inlet hole is provided on the second outer shell and communicates with one end of the air duct; an air outlet hole is provided on the second outer shell and communicates with the other end of the air duct, and the heat dissipation fan is used to guide the gas outside the second outer shell to enter the air duct from the air inlet hole and then be discharged from the air outlet hole.

[0053] In this technical solution, an air duct for heat dissipation is formed on the first cover assembly, and heat dissipation on the upper side of the heat insulation plate can be achieved through this air duct. In addition, by providing air guiding ribs on the second outer shell, different air ducts for heat dissipation can be formed, so that the air distribution can be made more uniform, thereby enabling more uniform heat dissipation and avoiding insufficient local heat dissipation.

[0054] Optionally, the cooking device further includes a temperature sensor provided on the housing for detecting the temperature inside the housing. Specifically, the temperature sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is used to detect the temperature at the top inside the housing, and the second temperature sensor is used to detect the temperature at the bottom inside the housing.

[0055] Exemplarily, when the housing includes a first cover assembly and a second cover assembly, the temperature sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is provided on the first cover assembly, and the second temperature sensor is provided on the second cover assembly and is used to detect the temperature at the bottom of the baking tray.

[0056] Exemplarily, the second housing includes a bottom cover and a lower outer shell, and the lower outer shell is installed on the bottom cover and is used to enclose a second receiving groove with the bottom cover.

[0057] Additional aspects and advantages of the present application will become apparent in the following description section, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of embodiments in conjunction with the following drawings, in which:

[0059] Figure 1 FIG. 1 shows one of the schematic structural diagrams of a cooking device according to an embodiment of the present application;

[0060] Figure 2 FIG. 2 shows another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0061] Figure 3 FIG. 3 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0062] Figure 4 FIG. 4 shows one of the schematic structural diagrams of a second reflector of a cooking device according to an embodiment of the present application;

[0063] Figure 5 FIG. 5 shows another schematic structural diagram of a second reflector of a cooking device according to an embodiment of the present application;

[0064] Figure 6 FIG. 6 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0065] Figure 7 FIG. 7 shows another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0066] Figure 8 FIG. 8 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0067] Figure 9 FIG. 9 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0068] Figure 10 FIG. 10 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0069] Figure 11 FIG. 11 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0070] Figure 12 FIG. 12 shows an exploded schematic structural diagram of a cooking device according to an embodiment of the present application;

[0071] Figure 13 FIG. 13 shows yet another schematic structural diagram of a cooking device according to an embodiment of the present application;

[0072] Figure 14 Fig. 11 is a schematic structural view of a cooking device according to an embodiment of the present application;

[0073] Figure 15 Fig. 1 is a schematic structural view of a first heating device of a cooking device according to an embodiment of the present application;

[0074] Figure 16 Fig. 2 is a schematic structural view of a first heating device of a cooking device according to an embodiment of the present application;

[0075] Figure 17 Fig. 3 is a schematic structural view of a first heating device of a cooking device according to an embodiment of the present application.

[0076] Reference numerals:

[0077] 1 housing, 12 first cover assembly, 120 second outer shell, 1204 air guiding rib, 122 heat insulation plate, 124 air duct, 126 heat dissipation fan, 128 exhaust passage, 1292 air inlet hole, 1294 air outlet hole, 14 second cover assembly, 142 first outer shell, 1422 first receiving groove, 1424 bottom cover, 1426 lower outer shell, 144 baking tray, 146 second heating device, 16 cooking cavity, 2 first heating device, 20 heating part, 22 second overheating passage, 24 segmented pipe, 26 connecting plate, 28 connecting pipe section, 29 first connecting pipe, 3 first reflector, 4 second reflector, 42 reflecting part, 44 first overheating passage, 5 oil filter net, 6 support member, 72 first temperature sensor, 74 second temperature sensor, 82 hinge cover, 84 hinge shaft. Detailed Description of the Invention

[0078] In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0079] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0080] The following refers to Figures 1 to 17 to describe a cooking device according to some embodiments of the present application.

[0081] As Figures 1 to 3As shown in the figure, the technical solution of the present application provides a cooking device, including a housing 1, a first heating device 2, a first reflector 3 and a second reflector 4. The first heating device 2 is installed inside the housing 1 and is located on the first side of the housing 1. The first reflector 3 is arranged inside the housing 1, between the inner wall on the first side and the first heating device 2, and the first reflector 3 is a reflector cover protruding away from the first heating device 2. The second reflector 4 is arranged inside the housing 1, on the side of the first heating device 2 away from the first reflector 3, and the heat reflected by the first reflector 3 can pass through the second reflector 4 and radiate to the side of the second reflector 4 away from the first heating device 2.

[0082] The cooking device provided by the present application includes a housing 1, a first heating device 2, a first reflector 3 and a second reflector 4. The first heating device 2 is installed inside the housing 1 and is located on the first side of the housing 1, and is used to heat the food inside the housing 1. The first reflector 3 is arranged on the side of the first heating device 2 away from the center of the housing 1, and is used to radiate the heat generated by the first heating device 2 towards the center of the housing 1. The second reflector 4 is arranged on the side of the first heating device 2 close to the center of the housing 1. After the heat radiated by the first heating device 2 reaches the second reflector 4, it can be reflected by the second reflector 4, so that the heat radiated by the first heating device 2 can be reflected multiple times between the first reflector 3 and the second reflector 4, thereby forming a diffuse reflection. Through the multiple reflections of heat between the first reflector 3 and the second reflector 4, the radiation direction of heat can be expanded, thereby expanding the range of heat radiation, and the heat radiated in different regions can be made more balanced, avoiding the concentration of heat near the heating device, so that the heat finally radiated towards the housing 1 onto the food is more uniform, and thus uniform heating of the food can be achieved.

[0083] Among them, as Figure 2 shown, the first reflector 3 is a reflector cover protruding away from the first heating device 2, which can reflect the heat towards the center of the housing 1, so that the heat can be relatively concentrated and the heat can be prevented from being reflected outside the housing 1.

[0084] In any of the above technical solutions, optionally, as Figure 2 shown, the reflector cover is an arc-shaped cover.

[0085] The structure of the arc-shaped cover makes the reflector cover relatively easy to process. At the same time, the arc-shaped cover also makes the reflection effect of different regions of the reflector cover more balanced, avoiding the occurrence of uneven heat caused by different reflection effects in different regions of the reflector cover.

[0086] In any of the above technical solutions, optionally, as Figure 9As shown, the surface of the arc-shaped cover away from the first heating device 2 is an arc surface, and the radius R of the arc surface is greater than or equal to 150 mm and less than or equal to 1000 mm.

[0087] This kind of setting makes the size of the arc-shaped cover more appropriate. On the one hand, it can cover the entire first heating device 2, and on the other hand, it can avoid the arc-shaped cover being too large and difficult to install. During design, the arc radius of the arc-shaped cover can be reasonably set according to the actual size of the cooking device.

[0088] In any of the above technical solutions, optionally, as Figure 9 and Figure 10 shown, the cooking device further includes: a heat insulation plate 122, which is arranged on the side of the first reflector 3 away from the first heating device 2, and there is a first distance between the heat insulation plate 122 and the first reflector 3.

[0089] In this technical solution, the heat insulation plate 122 is arranged close to the inner wall of the housing 1, and the first reflector 3, the first heating device 2, etc. are arranged inside the heat insulation plate 122. Through the heat insulation plate 122, the heat of the first reflector 3 can be prevented from being dissipated by the inner wall of the housing 1, thus forming a heat insulation and heat preservation effect on the housing 1. At the same time, the first reflector 3 and the heat insulation plate 122 are spaced apart, so that an air adiabatic channel can be formed between the first reflector 3 and the heat insulation plate 122, thereby further enhancing the heat insulation and heat preservation effect of the housing 1.

[0090] In any of the above technical solutions, optionally, as Figure 11 shown, the cooking device further includes: a plurality of support members 6, which are installed on the inner wall of the first side of the housing 1, and the first reflector 3 is installed on the plurality of support members 6.

[0091] In this technical solution, the first reflector 3 can be suspended and installed on the housing 1 through the plurality of support members 6, so as to ensure the distance between the first reflector 3 and the heat insulation plate 122. Avoid heat transfer between the first reflector 3 and the heat insulation plate 122.

[0092] Among them, as Figure 11 shown, the number of the support members 6 is multiple and is connected to the circumferential edge of the first reflector 3.

[0093] In any of the above technical solutions, optionally, as Figure 2 、 Figure 4 and Figure 5 shown, the second reflector 4 includes: a plurality of reflection parts 42, and at least one first overheating channel 44 is formed by enclosing the plurality of reflection parts 42. At least one first overheating channel 44 is formed between the second reflector 4 and the inner wall of the housing 1, and the heat reflected by the first reflector 3 can be radiated to the side of the second reflector 4 away from the first heating device 2 through the first overheating channel 44.

[0094] In this technical solution, the second reflector 4 includes a plurality of reflecting portions 42. An overheating channel for heat to pass through is formed between different reflecting portions 42. Alternatively, a first overheating channel 44 is formed between the second reflector 4 and the inner wall of the housing 1. Through the first overheating channel 44, both sides of the second reflector 4 can communicate with each other, so that heat can be radiated from one side of the second reflector 4 to the other side of the second reflector 4 and then to the food ingredients.

[0095] Among them, the plurality of reflecting portions 42 are connected to form an integral body, which facilitates the synchronous installation of the plurality of reflecting portions 42.

[0096] In any of the above technical solutions, optionally, as Figure 2 shown, the first heating device 2 includes: a plurality of heating portions 20, and at least one second overheating channel 22 is formed between the plurality of heating portions 20; the plurality of reflecting portions 42 are arranged in one-to-one correspondence with the plurality of heating portions 20.

[0097] In this technical solution, at least one second overheating channel 22 is formed between the plurality of heating portions 20, so that the first heating device 2 can be relatively widely distributed, and the heat can be relatively more dispersed. At the same time, the setting of the second overheating channel 22 also facilitates the multiple reflections of heat between the first reflector 3 and the second reflector 4, so that the heat can be more evenly radiated to the food ingredients, avoiding the blocking of heat radiation by the first heating device 2 and ensuring the heating efficiency.

[0098] Exemplarily, a second overheating channel 22 is formed between the first heating device 2 and the inner wall of the housing 1. The heat reflected by the first reflector 3 can be radiated to the side of the second reflector 4 away from the first heating device 2 through the second overheating channel 22 to achieve the radiant heating of the food ingredients.

[0099] In any of the above technical solutions, optionally, as Figure 2 shown, the reflecting portion 42 is recessed in a direction away from the first heating device 2.

[0100] In this technical solution, this setting can, on the one hand, increase the area of the reflecting portion 42 and improve the efficiency of its heat reflection. On the other hand, it can reflect heat back from different directions and can also receive heat from different directions, so as to improve the reflection effect of the reflecting portion 42 and ensure the heating efficiency.

[0101] Optionally, the reflecting portion 42 includes at least one of an arc-shaped reflecting portion, a V-shaped reflecting portion, and a U-shaped reflecting portion. The shape of the reflecting portion 42 can be reasonably set according to needs, including but not limited to arc-shaped, U-shaped, and V-shaped.

[0102] In any of the above technical solutions, optionally, the arc-shaped reflecting portion includes a circular arc-shaped reflecting portion, and the diameter of the arc-shaped reflecting portion is greater than or equal to 5 mm and less than or equal to 30 mm. This setting can ensure that the reflecting portion 42 has a certain area, thereby ensuring the reflection effect of the reflecting portion 42.

[0103] In any of the above technical solutions, optionally, as Figure 5 shown, the V-shaped reflecting portion 42 includes a first reflecting segment and a second reflecting segment connected in a V shape, and the included angle between the first reflecting segment and the second reflecting segment is greater than or equal to 60° and less than or equal to 180°.

[0104] This setting can ensure that the reflecting portion 42 has a certain area, thereby ensuring the reflection effect of the reflecting portion 42. Among them, the opening angle β of the V-shaped reflecting portion can be set to 60°-180° as needed. Exemplarily, the opening angle of the V-shaped reflecting portion can be set to 60°-120° as needed, such as 90°.

[0105] In any of the above technical solutions, optionally, the second reflector 4 is mounted on the first heating device 2, and / or the second reflector 4 is mounted on the first reflector 3.

[0106] The second reflector 4 can be mounted on the first heating device 2 as needed, or can be directly mounted on the first reflector 3. During design, the installation position and installation method of the second reflector 4 can be determined according to the actual situation.

[0107] In any of the above technical solutions, optionally, as Figures 1 to 3 shown, the first heating device 2, the first reflector 3 and the second reflector 4 are arranged on the top of the housing 1.

[0108] The first heating device 2, the first reflector 3 and the second reflector 4 can radiate heat downward from the top of the housing 1, so as to realize top heating of the food ingredients. And top heating can make the food ingredients heated more evenly and can also make the heating surface of the food ingredients wider. Of course, in other embodiments, according to the type of cooking device, the first heating device 2, the first reflector 3 and the second reflector 4 can be installed as a component at the bottom, or on the left and right sides or at the rear of the housing 1.

[0109] In any of the above technical solutions, optionally, as Figure 9 、 Figure 10 and Figure 12 and Figure 13 shown, the cooking device further includes: an oil filter net 5, which is arranged on the surface of the first heating device 2 away from the first reflector 3 or on one side of the first heating device 2 away from the first reflector 3.

[0110] In this technical solution, the oil filter net 5 is used to effectively reduce the probability of oil splashing onto the first heating device 2, the first reflector 3, and the second reflector 4 during cooking, thereby providing oil protection for the first heating device 2, the first reflector 3, and the second reflector 4, and facilitating the cleaning of the cooking device.

[0111] In any of the above technical solutions, optionally, the first heating device 2 includes a heating tube, and the heating tube includes a plurality of segmented tubes 24 arranged at intervals in a first direction.

[0112] In this technical solution, the first heating device 2 includes a heating tube, and the heating tube includes a plurality of segmented tubes 24. The plurality of segmented tubes 24 can be used to disperse heat the food ingredients. At the same time, the plurality of segmented tubes 24 are arranged at intervals, forming a first overheating channel 44, which facilitates the heat to be reflected back and forth between the first reflector 3 and the second reflector 4. In addition, the first heating device 2 formed by the heating tube is relatively simple, which can reduce costs.

[0113] In any of the above technical solutions, optionally, as Figures 15 to 17 shown, the plurality of segmented tubes 24 are symmetrically arranged with respect to an axis of symmetry. This arrangement can make the distribution of the first heating device 2 more uniform, so as to heat the food ingredients more evenly. The plurality of segmented tubes 24 are connected end to end in sequence, so that the plurality of segmented tubes 24 can be connected into one body for overall disassembly and assembly.

[0114] Specifically, two heating tubes can be bent to form two sets of symmetrically arranged heating structures. It is also possible to bend the same heating tube towards the middle at the same time to form two sets of symmetrically arranged heating structures.

[0115] In any of the above technical solutions, optionally, as Figure 15 and Figure 16 shown, two segmented tubes 24 adjacent to the axis of symmetry are connected by a connecting plate 26.

[0116] In this technical solution, the same heating tube can be bent towards the middle at the same time to form two sets of symmetrically arranged heating structures, and then the two ends of the heating tube are connected by a connecting plate 26. At the same time, power can be supplied to the heating tube through the connecting plate 26.

[0117] In any of the above technical solutions, optionally, as Figure 15 shown, the plurality of segmented tubes 24 are formed by bending the same heating tube.

[0118] This setting makes the structure of the first heating device 2 relatively simple, which is convenient for processing and also convenient for supplying power to the first heating device 2.

[0119] In any of the above technical solutions, optionally, among at least two segmented pipes 24 on the same side of the axis of symmetry, a connecting pipe segment 28 is formed between any two mutually connected segmented pipes 24. The two outermost segmented pipes 24 along the first direction are connected by a first connecting pipe 29. The first connecting pipe 29 is located on one side of the plurality of segmented pipes 24 along their axial direction, and is axially spaced from the connecting pipe segment 28 on the first side. The first connecting pipe 29 is located outside the connecting pipe segment 28 on its side, and a second spacing is provided between the first connecting pipe 29 and the connecting pipe segment 28 on its side.

[0120] In this technical solution, the spacing between the plurality of segmented pipes 24 is the same. The first connecting pipe 29 is located outside the connecting pipe segment 28 on its side, and a second spacing is provided between the first connecting pipe 29 and the connecting pipe segment 28 on its side, so that different parts of the heating pipe can be arranged more dispersedly, thereby avoiding the blocking of heat radiation by the heating pipe.

[0121] In any of the above technical solutions, optionally, as Figure 15 shown, the number of segmented pipes 24 is six. From the first side to the second side along the first direction, the six segmented pipes are successively the No. 1 segmented pipe, the No. 2 segmented pipe, the No. 3 segmented pipe, the No. 4 segmented pipe, the No. 5 segmented pipe, and the No. 6 segmented pipe. The center spacing between the No. 3 segmented pipe and the No. 4 segmented pipe is a, the center spacing between the No. 2 segmented pipe and the No. 5 segmented pipe is b, and the center spacing between the No. 1 segmented pipe and the No. 6 segmented pipe is c. The center spacing between the first connecting pipe 29 and the connecting pipe segment 28 on the other side opposite to its side is e. The center spacing between the first connecting pipe 29 and the connecting pipe segment 28 on its side is d. Among them, a / b is greater than or equal to 2 / 7 and less than or equal to 3 / 5, a / c is greater than or equal to 2 / 11 and less than or equal to 1 / 3, and d / e is greater than or equal to 1 / 11 and less than or equal to 1 / 5.

[0122] This kind of setting makes different parts of the heating pipe arranged more dispersedly, so as to form a larger overheating channel to facilitate the heat to be reflected back and forth between the first reflector 3 and the second reflector 4.

[0123] In any of the above technical solutions, optionally, as Figures 6 to 11 shown, the housing 1 includes: a first cover assembly 12; a second cover assembly 14, which is arranged opposite to the first cover assembly 12 and encloses a cooking cavity 16, and the first cover assembly 12 can be opened or closed relative to the second cover assembly 14. The first heating device 2, the first reflector 3 and the second reflector 4 are arranged on the side of the first cover assembly 12 close to the second cover assembly 14. The first cover assembly 12 and the second cover assembly 14 are arranged opposite to each other in the up-down direction of the cooking device. As Figure 13 and Figure 14 shown, the first cover assembly 12 is rotatably mounted above the second cover assembly 14.

[0124] Optionally, as Figure 9 and Figure 12 shown, the second cover assembly 14 includes: a first outer shell 142, on which a first receiving groove 1422 is provided; a baking tray 144, mounted in the first receiving groove 1422; and a second heating device 146, provided between the first outer shell 142 and the baking tray 144.

[0125] In this technical solution, the cooking device has a structure similar to that of an electric griddle. At this time, a first heating device 2, a first reflector 3, and a second reflector 4 can be provided on the upper cover assembly of the electric griddle to form a diffuse reflection at the top of the electric griddle-type cooking device, so as to achieve uniform heating of the food ingredients. Heating devices are provided on both the first cover assembly 12 and the second cover assembly 14, so that double-sided heating of the food ingredients can be achieved.

[0126] In any of the above technical solutions, optionally, as Figure 12 shown, one end of the first cover assembly 12 is hinged to one end of the second cover assembly 14 through a hinge assembly. The hinge assembly includes a hinge cover 82 and a hinge shaft 84, and the first cover assembly 12 and the second cover assembly 14 are hinged through the hinge shaft 84. The hinge cover 82 is used to block the side of the hinge shaft 84 away from the first cover assembly 12 and the second cover assembly 14 to protect the hinge shaft 84.

[0127] In any of the above technical solutions, optionally, as Figure 7 and Figure 13 shown, the cooking device further includes: an exhaust passage 128, provided on the first cover assembly 12 and / or the second cover assembly 14, and communicating with the cooking cavity 16 and the outside of the first cover assembly 12 or the second cover assembly 14. Through the exhaust passage 128, the water vapor in the cooking cavity 16 can be discharged during the process of cooking food ingredients. At the same time, through the exhaust passage 128, the pressure inside and outside the cooking cavity 16 can be ensured to be consistent.

[0128] In any of the above technical solutions, optionally, as Figures 8 to 12As shown in the figure, the first cover assembly 12 includes: a second outer shell 120, on which a second receiving groove is provided, and the notch of the second receiving groove faces the second cover assembly 14; a heat insulation plate 122, located inside the second outer shell 120; a wind guiding rib 1204, provided on the inner wall surface of the first outer shell 142, and the wind guiding rib 1204 and the heat insulation plate 122 enclose at least one air duct 124; a first heating device 2, a first reflector 3 and a second reflector 4 are provided on the side of the heat insulation plate 122 away from the second outer shell 120; a heat dissipation fan 126, provided in the air duct 124; an air inlet hole 1292, provided in the second outer shell 120 and communicated with one end of the air duct 124; an air outlet hole 1294, provided in the second outer shell 120 and communicated with the other end of the air duct 124, and the heat dissipation fan 126 is used to guide the gas outside the second outer shell 120 to enter the air duct 124 through the air inlet hole 1292 and then be discharged through the air outlet hole 1294.

[0129] In this technical solution, an air duct 124 for heat dissipation is formed on the first cover assembly 12, and heat dissipation on the upper side of the heat insulation plate 122 can be achieved through this air duct 124. In addition, by providing the wind guiding rib 1204 on the second outer shell 120, different air ducts 124 for heat dissipation can be formed, so that the air distribution can be made more uniform, thereby enabling more uniform heat dissipation and avoiding insufficient local heat dissipation.

[0130] Optionally, the cooking device further includes a temperature sensor, provided on the housing 1 for detecting the temperature inside the housing 1. Specifically, the temperature sensor includes a first temperature sensor 72 and a second temperature sensor 74. The first temperature sensor 72 is used to detect the temperature at the top inside the housing 1, and the second temperature sensor 74 is used to detect the temperature at the bottom inside the housing 1.

[0131] Exemplarily, when the housing 1 includes a first cover assembly 12 and a second cover assembly 14, the temperature sensor includes a first temperature sensor 72 and a second temperature sensor 74. As Figure 14 shown, the first temperature sensor 72 is provided on the first cover assembly 12. As Figure 12 shown, the second temperature sensor 74 is provided on the second cover assembly 14 and is used to detect the temperature at the bottom of the baking tray 144.

[0132] Exemplarily, as Figure 12 shown, the second housing includes a bottom cover 1424 and a lower outer shell 1426. The lower outer shell 1426 is installed on the bottom cover 1424 and is used to enclose a second receiving groove with the bottom cover 1424.

[0133] Next, taking a griddle as an example, the cooking device in the present application will be further introduced.

[0134] A griddle for cooking food in an upper-roasting and lower-frying manner. A dry-burning heating tube and a reflector are provided on the upper part of the griddle. The heat transferred from the heating tube to the food is mainly divided into two parts. The first part is the heat directly radiated from the heating tube to the food, and the second part is the heat radiated from the heating tube to the reflector and then reflected by the reflector to the food. Since the heating tube is a linear heat source, the heat radiated downward by it is uneven, resulting in uneven heating of the upper surface of the food and poor cooking effect.

[0135] As Figures 1 to 17 shown, the griddle provided by the embodiment of the present application includes an upper plate assembly (equivalent to the first cover assembly 12) and a lower plate assembly (equivalent to the second cover assembly 14). A cooking cavity 16 is formed between the upper plate assembly and the lower plate assembly. This kind of griddle cooks food in an upper-roasting and lower-frying manner. A dry-burning heating tube is provided on the upper part of the griddle, and its working temperature is much higher than that of a conventional heat pipe, so that the food can be baked at a relatively high temperature, making the food taste more crispy. A reflector is also provided on the upper part. The reflector is in the shape of a dome, which can make the heat form a diffuse reflection in the cooking cavity, making the temperature in the cooking cavity more uniform. The lower plate assembly is provided with a heating tube and a baking tray. The cross-section of the reflector is arc-shaped, and the radius value of its top surface is 150mm ≤ R ≤ 1000mm. The upper plate assembly includes a reflector and an upper housing.

[0136] Optionally, a heat insulation plate 122 is also provided between the reflector and the upper housing to prevent the temperature of the upper housing from being too high. The upper plate assembly is also provided with an adapter piece for assembling the reflector to the upper shell. The adapter piece greatly reduces the heat transferred from the reflector to the upper shell. An exhaust port is provided on the baking tray, and a notch matching the exhaust port is provided on the reflector.

[0137] Optionally, a cooling fan is also provided on the upper plate assembly. Air guiding ribs are provided on the upper housing. The air guiding ribs and the heat insulation plate cooperate to form an air duct. The fan blows external air into the air duct and discharges it from the air outlet, effectively reducing the temperature inside the upper housing.

[0138] Optionally, an oil filter net 5 is also provided below the upper heat pipe. The oil filter net 5 can effectively reduce the grease in the baking tray from splashing onto the reflector and the heating tube during cooking;

[0139] Furthermore, the upper plate assembly is provided with a heating tube, a reflector and a segmented tube reflection assembly; the lower plate assembly is provided with a heating tube and a baking tray 144. The heating tube is arranged below the reflector, and the reflection assembly is arranged below the heating tube. The cross-section of the reflection assembly along the direction perpendicular to the heat pipe is circular arc-shaped, and its arc diameter is greater than or equal to 5 mm and less than or equal to 30 mm; or, the cross-section of the reflection assembly along the direction perpendicular to the heat pipe is V-shaped, and its angle is 60° ≤ α ≤ 180°. The reflection assembly is hung below the heat pipe through a fixing member or fixed on the reflector. In this solution, the reflection assembly of the heating tube is arranged below the heating tube, and the reflection assembly can reflect the heat radiated downward by the heating tube to the reflector multiple times to form diffuse reflection, and finally the heat radiated downward to the food is more uniform.

[0140] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0141] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cooking device, characterized in that: include: case; A first heating device, installed in the housing and located on a first side of the housing; a first reflector, disposed in the housing and between the inner wall of the first side and the first heating device, wherein the first reflector is a reflector protruding in a direction away from the first heating device; The second reflector is arranged in the shell and is located at a side of the first heating device away from the first reflector. The heat reflected by the first reflector can be radiated to a side of the second reflector away from the first heating device.

2. The cooking device according to claim 1, characterized in that: The reflective cover is an arc-shaped cover.

3. The cooking device according to claim 2, characterized in that: The surface of the arc cover away from the first heating device is an arc surface, and the radius of the arc surface is greater than or equal to 150 mm and less than or equal to 1000 mm.

4. The cooking device according to claim 1, characterized in that: Also includes: The heat insulation board is arranged on a side of the first reflector away from the first heating device and has a first distance between the heat insulation board and the first reflector.

5. The cooking device according to claim 1, characterized in that: Also includes: A plurality of support members are mounted on the inner wall of the first side of the housing, and the first reflective member is mounted on the plurality of support members.

6. The cooking device according to any one of claims 1 to 5, characterized in that: The second reflector comprises a plurality of reflective parts, and the plurality of reflective parts enclose at least one first overheating channel; and / or at least one first overheating channel is formed between the second reflector and the inner wall of the housing; The heat reflected by the first reflector can be radiated to a side of the second reflector away from the first heating device through the first overheating channel.

7. The cooking device according to claim 6, characterized in that The first heating device comprises: A plurality of heating parts, wherein at least one second overheating channel is formed between the plurality of heating parts; The plurality of reflecting parts are arranged corresponding to the plurality of heating parts one by one.

8. The cooking device according to claim 6, characterized in that The reflecting portion is recessed in a direction away from the first heating device.

9. The cooking device according to claim 8, characterized in that The reflecting portion includes at least one of an arc-shaped reflecting portion, a V-shaped reflecting portion, and a U-shaped reflecting portion.

10. The cooking device according to claim 9, characterized in that The arc-shaped reflecting portion includes a circular arc-shaped reflecting portion, and the diameter of the arc-shaped reflecting portion is greater than or equal to 5 mm and less than or equal to 30 mm; and / or The V-shaped reflective portion includes a first reflective segment and a second reflective segment connected in a V shape, and an angle between the first reflective segment and the second reflective segment is greater than or equal to 60° and less than or equal to 180°.

11. The cooking device according to any one of claims 1 to 5, characterized in that: The second reflecting member is mounted on the first heating device, and / or the second reflecting member is mounted on the first reflecting member.

12. The cooking device according to any one of claims 1 to 5, characterized in that: The first heating device, the first reflecting member and the second reflecting member are arranged on the top of the housing.

13. The cooking device according to any one of claims 1 to 5, characterized in that: Also includes: The oil filter is arranged on a surface of the first heating device away from the first reflecting member or on a side of the first heating device away from the first reflecting member.

14. The cooking device according to any one of claims 1 to 5, characterized in that: The first heating device includes a heating tube, and the heating tube includes a plurality of segmented tubes spaced apart along a first direction.

15. The cooking device according to claim 14, characterized in that The plurality of segmented tubes are symmetrically arranged about a symmetry axis, and the plurality of segmented tubes are sequentially connected end to end.

16. The cooking device according to claim 15, characterized in that The plurality of segmented tubes are formed by bending the same heating tube, and two segmented tubes adjacent to the symmetry axis are connected via a connecting plate.

17. The cooking device according to claim 15, characterized in that Among the at least two segmented pipes located on the same side of the symmetry axis, a connecting pipe segment is formed between any two segmented pipes connected to each other; The two segmented pipes located at the outermost sides along the first direction are connected by a first connecting pipe; The first connecting pipe is located on one side of the plurality of segmented pipes along the axial direction and is spaced apart from the connecting pipe segment located on the first side along the axial direction. The first connecting pipe is located on the outside of the connecting pipe segment on its side and a second spacing is set between the first connecting pipe and the connecting pipe segment on its side.

18. The cooking device according to claim 17, characterized in that The number of the segmented pipes is 6, and along the first side to the second side of the first direction, the 6 segmented pipes are segmented pipe No. 1, segmented pipe No. 2, segmented pipe No. 3, segmented pipe No. 4, segmented pipe No. 5, and segmented pipe No. 6 in sequence; The center distance between the No. 3 segmented pipe and the No. 4 segmented pipe is a, the center distance between the No. 2 segmented pipe and the No. 5 segmented pipe is b, and the center distance between the No. 1 segmented pipe and the No. 6 segmented pipe is c; The center distance between the first connecting pipe and the connecting pipe section on the other side opposite to the side where the first connecting pipe is located is e; The center distance between the first connecting pipe and the connecting pipe section on its side is d; Among them, a / b is greater than or equal to 2 / 7 and less than or equal to 3 / 5, a / c is greater than or equal to 2 / 11 and less than or equal to 1 / 3, and d / e is greater than or equal to 1 / 11 and less than or equal to 1 / 5.

19. The cooking device according to any one of claims 1 to 5, characterized in that The housing comprises: a first cover assembly; A second cover assembly is disposed opposite to the first cover assembly and surrounds a cooking cavity, and the first cover assembly can be opened or closed relative to the second cover assembly; The first heating device, the first reflecting member and the second reflecting member are arranged on a side of the first cover assembly close to the second cover assembly; The second cover assembly comprises: A first housing, wherein a first receiving groove is provided on the first housing; A baking tray, mounted in the first receiving slot; The second heating device is arranged between the first shell and the baking tray.

20. The cooking device according to claim 19, characterized in that The first cover assembly and the second cover assembly are arranged opposite to each other along the up-down direction of the cooking device, and the first cover assembly is rotatably installed above the second cover assembly.

21. The cooking device according to claim 19, characterized in that The first cover assembly comprises: a second housing, wherein the second housing is provided with a second receiving groove, and the notch of the second receiving groove faces the second cover assembly; a heat shield disposed within the second housing; Wind guiding ribs are arranged on the inner wall surface of the first shell, and the wind guiding ribs and the heat insulation board enclose at least one wind duct; The first heating device, the first reflecting member and the second reflecting member are arranged on a side of the heat insulation board away from the second shell; A heat dissipation fan, arranged in the air duct; an air inlet, provided on the second housing and connected to one end of the air duct; An exhaust hole is arranged on the second shell and is connected to the other end of the air duct. The heat dissipation fan is used to guide the gas outside the second shell to enter the air duct through the air inlet hole and then be discharged from the exhaust hole.

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