Electric pizza oven

Abstract

According to the electric pizza oven, an inner container is provided with a baking cavity, and an opening communicating with the baking cavity is formed in the front side wall of the inner container; the heating assembly comprises a graphene heating pipe and a metal heating coil pipe, the graphene heating pipe is installed at the top of the baking cavity, and the metal heating coil pipe is installed at the bottom of the baking cavity; the baking tray can be inserted into the baking cavity and located between the graphene heating pipe and the metal heating coil pipe. The inner shell covers the periphery of the inner container, a heat insulation cavity is formed between the inner side wall of the inner shell and the outer side wall of the inner container, and a heat insulation assembly wrapping the periphery of the inner container is installed in the heat insulation cavity. The outer shell covers the periphery of the inner shell, a mounting cavity for mounting an electronic element is formed between the inner side wall of the outer shell and the outer side wall of the inner shell, and a plurality of heat dissipation holes are formed in the bottom wall of the outer shell. Therefore, the electric pizza oven has high heating efficiency, can effectively insulate heat of the inner container, and has high safety performance.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an electric pizza oven. Background Art

[0002] The heating of pizza requires uniform heat transfer and effective heating on both the top and bottom, so a dedicated pizza oven is needed to make pizza. Existing electric pizza ovens usually use metal heating coils to heat food, that is, they use metals such as iron-chromium wire or nickel-chromium wire to generate heat after being energized. The heating efficiency is low, resulting in a long cooking time for food. In addition, when the pizza oven is working, the temperature in the inner tank will remain above 300°C for a long time, which makes the power supply, controller and other electronic components in the electric pizza oven easily damaged by high temperature, thus shortening the service life of the electric pizza oven and causing the surface temperature of the outer shell to be too high, which can easily cause harm to the user. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an electric pizza oven with high heating efficiency, effective heat insulation of the inner tank, and high safety performance.

[0004] According to an embodiment of the present invention, the electric pizza oven includes: an inner pot, which is provided with a baking cavity, the front side wall of the inner pot is provided with an opening connected to the baking cavity, and the inner pot is also movably connected with a door body capable of opening or closing the opening; a heating component, including a graphene heating tube and a metal heating coil, the graphene heating tube is installed at the top of the baking cavity, and the metal heating coil is installed at the bottom of the baking cavity; a baking tray can be inserted into the baking cavity and located between the graphene heating tube and the metal heating coil; an inner shell, which is covered on the outer periphery of the inner pot, an insulating cavity is provided between the inner side wall of the inner shell and the outer side wall of the inner pot, and an insulating component wrapped around the outer periphery of the inner pot is installed in the insulating cavity; an outer shell, which is covered on the outer periphery of the inner shell, an installation cavity for installing electronic components is provided between the inner side wall of the outer shell and the outer side wall of the inner shell, and a plurality of heat dissipation holes are provided on the bottom wall of the outer shell.

[0005] The electric pizza oven according to the embodiment of the present invention has at least the following beneficial effects: by adopting the electric pizza oven according to the embodiment of the present invention, the heating component adopts the graphene heating tube and the metal heating coil to cooperate with each other, which can greatly improve the heat transfer efficiency and shorten the heating time of food. By setting the inner shell, an insulation cavity is formed between the inner shell and the inner tank, and an installation cavity is formed between the inner shell and the outer shell, thereby, the insulation component in the insulation cavity can well isolate the heat in the baking cavity, thereby facilitating the insulation of the baking cavity and preventing the heat in the baking cavity from being transferred to the installation cavity, thereby facilitating the reduction of the risk of damage to the electronic components in the installation cavity due to high temperature, and also reducing the risk of burns to the user due to excessive temperature of the outer shell. By opening a plurality of heat dissipation holes at the bottom of the outer shell, the hot air in the installation cavity can flow out from the bottom of the outer shell through the heat dissipation holes, thereby not only dissipating the heat of the installation cavity, further reducing the temperature in the installation cavity, reducing the risk of damage to the electronic components in the installation cavity due to high temperature, but also effectively preventing the hot air flowing out of the installation cavity from blowing directly to the user and causing harm to the user, thus having a higher safety performance.

[0006] According to some embodiments of the present invention, an electric control device is installed in the installation cavity, and the connection terminals of the graphene heating tube and the connection terminals of the metal heating coil both pass through the insulation cavity and extend into the installation cavity to be electrically connected to the electric control device.

[0007] According to some embodiments of the present invention, the door body includes a door frame, a first insulating glass, a second insulating glass and an outer layer of glass, the door frame is hinged to the side wall of the inner liner, and the first insulating glass, the second insulating glass and the outer layer of glass are sequentially installed on the door frame along the direction from back to front; a sealing strip is installed on the front side wall of the inner liner, and the sealing strip is wrapped around the outer periphery of the opening, and the front side wall of the inner liner is also provided with an abutment protruding forward, and when the door body closes the opening, the first insulating glass abuts against the abutment and the sealing strip.

[0008] According to some embodiments of the present invention, a heat dissipation fan is installed in the installation cavity, and the outer shell is provided with a cold air inlet connected to the installation cavity; the front side wall of the inner tank is provided with a first connecting hole connected to the installation cavity, the first insulating glass and the second insulating glass are arranged at intervals to form a heat dissipation channel, the upper side wall of the door frame is provided with a hot air inlet connected to the heat dissipation channel, the hot air inlet is connected to the first connecting hole, and the lower end of the heat dissipation channel has a hot air outlet connected to the outside.

[0009] According to some embodiments of the present invention, the front side wall of the inner pot is further provided with a second connecting hole connected to the heat insulation cavity, the second connecting hole is connected to the hot air inlet, the upper side wall of the inner pot is provided with a third connecting hole connected to the baking cavity, an air outlet box is installed in the heat insulation cavity, the air outlet box has an air outlet cavity connected to the third connecting hole, and the air outlet cavity extends forward to be connected to the second connecting hole.

[0010] According to some embodiments of the present invention, the door frame includes two oppositely arranged side mounting parts and an upper mounting part connected between the upper ends of the two side mounting parts, the two side mounting parts are both hinged to the front side wall of the inner tank, the hot air inlet is opened in the upper mounting part, the first insulating glass and the second insulating glass are both installed between the two side mounting parts and abut against the upper mounting part, the outer layer of glass is installed on the front side surfaces of the two side mounting parts and extends upward relative to the upper mounting part to cover the first connecting hole and the second connecting hole, and a decorative panel extending forward is installed on the front side of the outer shell, the decorative panel is at least partially located above the first connecting hole and the second connecting hole, and when the door body closes the opening, the outer layer of glass is adjacent to the decorative panel.

[0011] According to some embodiments of the present invention, a control module is installed on the front side of the outer shell, the control module has a display screen and an adjustment knob, a light-emitting component is installed inside the adjustment knob, and the surface of the adjustment knob has a light-transmitting portion corresponding to the light-emitting component.

[0012] According to some embodiments of the present invention, the thermal insulation assembly includes at least five pieces of thermal insulation cotton, and all of the thermal insulation cotton are cooperated to cover the upper side wall, lower side wall, left side wall, right side wall and rear side wall of the inner liner.

[0013] According to some embodiments of the present invention, the baking pan is a cast aluminum part, and the upper surface of the baking pan is coated with a ceramic coating.

[0014] According to some embodiments of the present invention, a lighting fixture is also installed on the top of the baking cavity, and the lighting fixture includes a lighting part, a mounting part and a power connection part. The mounting part is installed on the top wall of the inner pot and extends into the mounting cavity. The lighting part includes a light source arranged in the mounting part and a lampshade covered on the periphery of the light source. The light source is located in the heat-insulating cavity, the lampshade is connected to the mounting part and extends downward into the baking cavity, and the top wall of the baking cavity is provided with a guardrail arranged along the circumference of the lighting part; the power connection part is provided above the mounting part and located in the mounting cavity, the power connection part is electrically connected to the light source, and the top wall of the inner shell is provided with a protective cover covered on the periphery of the power connection part.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the door closing of the electric pizza oven according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the door opening of the electric pizza oven according to an embodiment of the present invention

[0019] Figure 3 A schematic cross-sectional view of an electric pizza oven according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross section at A in the middle;

[0021] Figure 5 A schematic cross-sectional view of an electric pizza oven according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of an exploded view of an electric pizza oven according to an embodiment of the present invention;

[0023] Figure 7 A schematic cross-sectional view of an electric pizza oven according to an embodiment of the present invention;

[0024] Figure 8 Schematic diagram of the inner shell of the electric pizza oven according to an embodiment of the present invention;

[0025] Fig. 9 Schematic diagram of the inner pot of the electric pizza oven according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] Inner pot 100, baking cavity 110, graphene heating tube 120, metal heating coil 130, baking tray 140, sealing strip 150, abutting portion 160, front side wall 170, first connecting hole 171, second connecting hole 172, third connecting hole 180;

[0028] Inner shell 200, heat insulation cavity 210, air outlet box 220, air outlet cavity 221;

[0029] The outer shell 300, the installation cavity 310, the electric control device 320, the decorative plate 330, and the support foot 340;

[0030] Door body 400, first heat-insulating glass 410, second heat-insulating glass 420, decorative glass 430, observation port 431, heat dissipation channel 440, hot air inlet 441, hot air outlet 442, side mounting plate 450, upper mounting plate 460, handle 470, light-emitting part 471, control module 480, display screen 481, adjustment knob 482;

[0031] The lighting fixture 500 , the mounting portion 510 , the power connection portion 520 , the lampshade 530 , the guardrail 540 , and the protective cover 550 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 9An embodiment of the present invention provides an electric pizza oven, which includes an inner tank 100, a heating component, a baking tray 140, an inner shell 200 and an outer shell 300. The inner tank 100 is provided with a baking cavity 110, and the front side wall 170 of the inner tank 100 is provided with an opening connected to the baking cavity 110. The inner tank 100 is also movably connected with a door body 400 that can open or close the opening. The heating component includes a graphene heating tube 120 and a metal heating coil 130, the graphene heating tube 120 is installed at the top of the baking cavity 110, and the metal heating coil 130 is installed at the bottom of the baking cavity 110. The baking tray 140 can be inserted into the baking cavity 110 and is located between the graphene heating tube 120 and the metal heating coil 130. The inner shell 200 is covered on the outer periphery of the inner shell 100, and a heat insulation cavity 210 is provided between the inner side wall of the inner shell 200 and the outer side wall of the inner shell 100, and a heat insulation component wrapped around the outer periphery of the inner shell 100 is installed in the heat insulation cavity 210. The outer shell 300 is covered on the outer periphery of the inner shell 200, and a mounting cavity 310 for mounting electronic components is provided between the inner side wall of the outer shell 300 and the outer side wall of the inner shell 200, and a plurality of heat dissipation holes are provided on the bottom wall of the outer shell 300.

[0037] By adopting the electric pizza oven of the embodiment of the present invention, the heating component adopts the graphene heating tube 120 and the metal heating coil 130 to cooperate with each other. The graphene heating tube 120 can heat the food from the top of the baking tray 140, and the metal heating coil 130 can heat the food from the bottom of the baking tray 140. The metal heating coil 130 uses the metal to generate heat by electricity, and conducts the heat to the food through the baking tray 140, that is, the food is heated by heat conduction. The graphene heating tube 120 uses the extremely high thermal conductivity of graphene, so it can quickly convert electrical energy into thermal energy. The heat generated by the graphene heating tube 120 can not only be conducted to the food through the baking tray 140, but also infrared rays are generated when the graphene is heated, so infrared heating can be achieved, that is, the graphene heating tube 120 can heat the food by heat radiation and heat conduction at the same time, which greatly improves the heat transfer efficiency, shortens the heating time of the food, and is conducive to locking the moisture in the food, so that the food has a better taste. In addition, the electric pizza oven of the embodiment of the present invention is also provided with an inner shell 200, and a heat insulation cavity 210 is formed between the inner shell 200 and the inner pot 100, and an installation cavity 310 for installing electronic components is formed between the inner shell 200 and the outer shell 300. The heat insulation component in the heat insulation cavity 210 can well isolate the heat in the baking cavity 110, which is beneficial to keep the baking cavity 110 warm and prevent the heat in the baking cavity 110 from being conducted to the installation cavity 310, thereby helping to reduce the risk of damage to the electronic components in the installation cavity 310 due to high temperature. At the same time, the installation cavity 310 can also play a heat insulation effect, further preventing heat from being conducted to the outer shell 300, thereby reducing the risk of burns to the user due to the excessive temperature of the outer shell 300, thereby protecting the user. By opening a plurality of heat dissipation holes at the bottom of the outer shell 300, the hot air in the installation cavity 310 can flow out from the bottom of the outer shell 300 through the heat dissipation holes, thereby not only dissipating the heat of the installation cavity 310, but also further reducing the temperature in the installation cavity 310 and the risk of damage to the electronic components in the installation cavity 310 due to high temperature, but also effectively preventing the hot air flowing out of the installation cavity 310 from blowing directly onto the user and causing harm to the user, thereby having a higher safety performance.

[0038] It is understandable that the inner liner 100, the inner shell 200, and the outer shell 300 can all be made of 304 stainless steel.

[0039] It is understandable that by using the graphene heating tube 120, graphene has an extremely high thermal conductivity coefficient and can quickly convert electrical energy into thermal energy, so it also has a high electrical energy conversion efficiency, thereby making the heating component more energy-saving and power-saving. In addition, graphene also has good stability, so that the graphene heating tube 120 can have a long service life. Among them, the graphene heating tube 120 can specifically include a glass tube and a graphene heating element, the graphene heating element is installed in the glass tube, and both ends of the glass tube are provided with power terminals for electrically heating the graphene.

[0040] It can be understood that since the heating efficiency of the metal heating coil 130 is lower than that of the graphene heating tube 120, in order to further shorten the baking time of food, when the baking tray 140 is inserted into the baking cavity 110, the distance between the baking tray 140 and the metal heating coil 130 can be smaller than the distance between the baking tray 140 and the graphene heating tube 120. This can shorten the time for the heat emitted by the metal heating coil 130 to be conducted to the food through the baking tray 140, thereby facilitating the metal heating coil 130 to heat the food in the baking tray 140, which is beneficial to shortening the baking time of food and improving the overall heating efficiency of the electric pizza oven.

[0041] Reference Figures 1 to 9 In some embodiments, an electric control device 320 is installed in the installation cavity 310 , and the connection terminals of the graphene heating tube 120 and the connection terminals of the metal heating coil 130 both penetrate the insulation cavity 210 and extend into the installation cavity 310 to be electrically connected to the electric control device 320 .

[0042] By adopting the above structure, by installing the electric control device 320 in the installation cavity 310, the heat insulation component in the heat insulation cavity 210 can well isolate the heat in the baking cavity 110, and prevent the heat in the baking cavity 110 from being transferred to the installation cavity 310, which is conducive to protecting the electric control device 320 and reducing the risk of damage to the electric control device 320 due to high temperature. In addition, by extending the power terminals of the graphene heating tube 120 and the wiring terminals of the metal heating coil 130 into the installation cavity 310, the influence of high temperature on the power terminals of the graphene heating tube 120 and the wiring terminals of the metal heating coil 130 can be reduced, which is conducive to the normal operation of the graphene heating tube 120 and the metal heating coil 130.

[0043] Reference Figures 1 to 4In some embodiments, the door body 400 includes a door frame, a first insulating glass 410, a second insulating glass 420 and an outer layer of glass. The door frame is hinged to the side wall of the inner liner 100. The first insulating glass 410, the second insulating glass 420 and the outer layer of glass are installed on the door frame in sequence from back to front. A sealing strip 150 is installed on the front side wall 170 of the inner liner 100. The sealing strip 150 is arranged around the outer periphery of the opening. The front side wall 170 of the inner liner 100 is also provided with a forward protruding abutment 160. When the door body 400 closes the opening, the first insulating glass 410 abuts against the abutment 160 and the sealing strip 150.

[0044] By adopting the above structure, the first insulating glass 410 and the second insulating glass 420 can well isolate the heat in the baking cavity 110, and prevent the temperature of the outer glass from being too high, which affects the use of the user and causes burns to the user. In addition, the sealing strip 150 can cooperate with the first insulating glass 410 to seal the baking cavity 110, thereby preventing the heat in the baking cavity 110 from flowing out from the opening. The abutment portion 160 can prevent the first insulating glass 410 from directly hitting the front side wall 170 of the inner container 100 when the door body 400 is closed, thereby protecting the first insulating glass 410 and the inner container 100, and preventing the first insulating glass 410 from being broken or the front side wall 170 of the inner container 100 from being deformed.

[0045] It is understandable that the abutting portion 160 may be made of flexible materials such as rubber and silicone.

[0046] It is understandable that the first insulating glass 410 can specifically be made of borosilicate glass. Borosilicate glass has very excellent thermal insulation properties, and thus can well isolate the heat in the baking chamber 110, preventing the temperature of the outer layer of glass from being too high and affecting the user's use, causing burns to the user. In addition, borosilicate glass has a low thermal expansion coefficient, and thus can maintain good stability at high temperatures. Secondly, borosilicate glass has high thermal shock resistance and can withstand rapid temperature changes without breaking, thereby maintaining good structural stability during the use of the electric pizza oven. Of course, in addition to this, the first insulating glass 410 can also be made of other types of glass, which is not specifically limited by the present invention.

[0047] It is understandable that the second heat-insulating glass 420 can specifically be Low-E glass, which is also called low-radiation glass. It is a film product composed of multiple layers of metal or other compounds coated on the glass surface. Its coating layer has the characteristics of high transmittance of visible light and high reflection of mid- and far-infrared rays, so it has excellent heat insulation effect and good light transmittance, and can reflect the infrared rays emitted outward by the graphene heating tube 120 back into the baking cavity 110, thereby isolating the temperature in the baking cavity 110 well, and can further improve the heating efficiency of the graphene heating tube 120 for food. Of course, in addition to this, the first heat-insulating glass 410 can also be made of other types of glass, which is not specifically limited by the present invention.

[0048] It is understandable that, referring to Figures 1 to 4 In some embodiments, an observation port 431 is provided on the outer layer of glass, through which the user can conveniently observe the heating status of the food in the baking cavity 110. When the second heat-insulating glass 420 is Low-E glass, since Low-E glass has the characteristic of high transmittance to visible light, the user can conveniently observe the heating status of the food in the baking cavity 110 more clearly. It can be understood that the outer layer of glass can specifically be the common decorative glass 430 in the prior art, and the present invention does not make any specific limitation on this.

[0049] It is understandable that, referring to Figures 1 to 4 In some embodiments, a handle 470 is further installed on the front surface of the outer glass fan, and a strip-shaped light-emitting portion 471 is provided on the handle 470. In this structure, the setting of the handle 470 can facilitate the user to open or close the door body 400, and the setting of the light-emitting portion 471 can not only facilitate the user to accurately hold the handle 470 to open or close the door body 400, but also increase the aesthetics of the electric pizza oven. In order to further increase the aesthetics of the electric pizza oven, the light-emitting portion 471 can be configured to produce a horse-racing light-emitting effect or other forms of light-emitting effects, which is not specifically limited by the present invention.

[0050] Reference Figures 1 to 4 In some embodiments, a heat dissipation fan is installed in the installation cavity 310, and the outer shell 300 is provided with a cold air inlet connected to the installation cavity 310. The front side wall 170 of the inner tank 100 is provided with a first connecting hole 171 connected to the installation cavity 310, the first heat insulating glass 410 and the second heat insulating glass 420 are arranged at intervals to form a heat dissipation channel 440, the upper side wall of the door frame is provided with a hot air inlet 441 connected to the heat dissipation channel 440, the hot air inlet 441 is connected to the first connecting hole 171, and the lower end of the heat dissipation channel 440 has a hot air outlet 442 connected to the outside.

[0051] By adopting the above structure, the heat dissipation fan can accelerate the air flow in the installation cavity 310, so that the hot air in the installation cavity 310 can flow out quickly, which is conducive to cooling the electronic components in the installation cavity 310, further reducing the risk of damage to the electronic components in the installation cavity 310 due to high temperature, and also further reducing the risk of burns to the user due to the excessive temperature of the outer shell 300. In addition, by arranging the heat dissipation channel 440 between the first heat-insulating glass 410 and the second heat-insulating glass 420, the hot air in the installation cavity 310 can flow to the heat dissipation channel 440 through the first connecting hole 171, flow downward along the heat dissipation channel 440, and finally flow out from the hot air outlet 442 at the lower end of the heat dissipation channel 440, thereby facilitating the discharge of the hot air in the installation cavity 310. Among them, by arranging the hot air outlet 442 at the lower end of the heat dissipation channel 440, the hot air flows out from the lower end of the door body 400, thereby preventing the hot air flowing out of the installation cavity 310 from blowing directly to the user and causing harm to the user.

[0052] Since the baking chamber 110 is in a sealed state when the electric pizza oven is heating food, the air and moisture in the baking chamber 110 will expand due to the heat to form high-temperature and high-pressure gas. If the high-temperature and high-pressure gas cannot be discharged in time, it will cause excessive pressure inside the baking chamber 110. When the food is heated, at the moment the door 400 is opened, due to the large pressure difference between the inside and outside of the baking chamber 110, the high-temperature and high-pressure gas in the baking chamber 110 will diffuse rapidly, which may easily cause harm to the user.

[0053] For this purpose, refer to Figures 1 to 4 In some embodiments, the front side wall 170 of the inner pot 100 is further provided with a second connecting hole 172 communicating with the heat insulation cavity 210, the second connecting hole 172 is connected with the hot air inlet 441, and the upper side wall of the inner pot 100 is provided with a third connecting hole 180 communicating with the baking cavity 110. An air outlet box 220 is installed in the heat insulation cavity 210, and the air outlet box 220 has an air outlet cavity 221 communicating with the third connecting hole 180, and the air outlet cavity 221 extends forward to communicate with the second connecting hole 172.

[0054] By adopting the above structure, during the process of heating food in the electric pizza oven, the high-temperature and high-pressure gas in the baking chamber 110 can flow into the air outlet chamber 221 of the air outlet box 220 through the third connecting hole 180, and then flow into the heat dissipation channel 440 of the door body 400 through the second connecting hole 172, and finally be discharged from the hot air outlet 442 at the lower end of the heat dissipation channel 440. This can reduce the pressure difference between the inside and outside of the baking chamber 110 when the door body 400 is opened, and can guide the high-temperature and high-pressure gas to flow out from the lower end of the door body 400, thereby reducing the risk of high-temperature and high-pressure gas causing harm to the user, thereby improving the user experience.

[0055] Reference Figures 1 to 4 In some embodiments, the door frame includes two side mounting plates 450450 arranged opposite to each other and an upper mounting plate 460460 connected between the upper ends of the two side mounting plates 450450, the two side mounting plates 450450 are both hinged to the front side wall 170 of the inner tank 100, the hot air inlet 441 is opened on the upper mounting plate 460460, the first insulating glass 410 and the second insulating glass 420 are both installed between the two side mounting plates 450450 and abut against the upper mounting plate 460460, the outer layer of glass is installed on the front side surfaces of the two side mounting plates 450450 and extends upward relative to the upper mounting plate 460460, and a decorative panel 330 extending forward is installed on the front side of the outer shell 300, and the decorative panel 330 is at least partially located above the first connecting hole 171 and the second connecting hole 172. When the door body 400 closes the opening, the outer layer of glass is adjacent to the decorative panel 330.

[0056] By adopting the above structure, the two side mounting plates 450450 can facilitate the stable installation of the first heat insulating glass 410, the second heat insulating glass 420 and the outer glass, and the upper mounting plate 460460 can facilitate the processing and opening of the hot air inlet 441. By extending the outer glass upward relative to the upper mounting plate 460460 to block the first connecting hole 171 and the second connecting hole 172, the hot air discharged from the first connecting hole 171 and the second connecting hole 172 will be blown directly to the door body 400, and the door body 400 can block the hot air discharged from the first connecting hole 171 and the second connecting hole 172, so that the hot air turns to flow to the hot air inlet 441 of the upper mounting plate or flows into the gap between the outer glass and the decorative plate 330. It can be seen that the outer glass can block the hot air discharged from the first connecting hole 171 and the second connecting hole 172 from blowing directly to the user, reducing the probability of hot air causing harm to the user, thereby improving the user experience.

[0057] It can be understood that the first insulating glass 410 and the second insulating glass 420 are both installed between the two side mounting plates 450450 and abut against the upper mounting plate 460460. Specifically, each side mounting plate 450450 is installed with at least one clamping portion, and the clamping portion is provided with a first clamping groove and a second clamping groove. The first insulating glass 410 is clamped in the first clamping groove, and the second insulating glass 420 is clamped in the second clamping groove. The clamping portion can be installed on the side mounting plate 450450 by screwing, clamping or welding, and when at least two clamping portions are installed on each side mounting plate 450450, the clamping portions are arranged in sequence along the upper and lower directions of the side mounting plate 450450.

[0058] It can be understood that the outer layer of glass is installed on the front side surfaces of the two side mounting plates 450450. Specifically, the outer layer of glass can be installed on the front side surfaces of the two side mounting plates 450450 by bonding.

[0059] Reference Figure 1 to Figure 2 In some embodiments, a control module 480 is installed on the front side of the outer shell 300. The control module 480 has a display screen 481 and an adjustment knob 482. A light-emitting component is installed in the adjustment knob 482, and the surface of the adjustment knob 482 has a light-transmitting portion corresponding to the light-emitting component.

[0060] By adopting the above structure, the setting of the display screen 481 and the adjustment knob 482 can facilitate the user to operate the electric pizza oven and select the required baking mode. By arranging a light-emitting component and a light-transmitting portion on the adjustment knob 482, the adjustment knob 482 forms a light-emitting knob, which is not only convenient for the user to operate and adjust, but also can increase the aesthetics of the electric pizza oven.

[0061] It is understandable that the display screen 481 can be used to display different food types or different baking modes, so that the user can select the appropriate baking mode according to the needs, which is conducive to improving the user experience. The display screen 481 can be an LED display screen 481 and / or a TFT display screen 481, which is not specifically limited in the present invention.

[0062] In some embodiments, the thermal insulation assembly includes at least five pieces of thermal insulation cotton, and all of the thermal insulation cotton is cooperated to cover the upper side wall, the lower side wall, the left side wall, the right side wall and the rear side wall of the inner liner 100.

[0063] By adopting the above structure, all the insulation cotton can well wrap the inner tank 100, and can well isolate the heat in the baking cavity 110, which is beneficial to keep the baking cavity 110 warm and prevent the heat in the baking cavity 110 from being transferred to the installation cavity 310, thereby helping to reduce the risk of damage to electronic components in the installation cavity 310 due to high temperature, and also can reduce the risk of burns to users due to excessive temperature of the outer shell 300.

[0064] It can be understood that the thermal insulation component can specifically include five pieces of thermal insulation cotton, which are respectively wrapped around the upper side wall, lower side wall, left side wall, right side wall and rear side wall of the inner liner 100, thereby not only achieving the thermal insulation effect, but also facilitating the installation of the thermal insulation component.

[0065] It is understandable that, in addition to using thermal insulation cotton, the thermal insulation component may also use a vacuum insulation panel or other types of thermal insulation components, and the present invention does not make any specific limitation on this.

[0066] In some embodiments, the baking tray 140 is a cast aluminum part, and the upper surface of the baking tray 140 is coated with a ceramic coating.

[0067] In the above structure, the baking tray 140 is set as a cast aluminum part. The cast aluminum part has the characteristics of good thermal conductivity, high temperature resistance and uniform heating, and can adapt well to the high temperature environment in the inner pot 100, so as to facilitate rapid heating of food. In addition, compared with other materials, the cast aluminum part is also conducive to reducing the mass of the baking tray 140, making it easier and more labor-saving to take and put the baking tray 140, which is convenient for users to use. In addition, the setting of the ceramic coating can prevent food from sticking to the baking tray 140, thereby ensuring the integrity and taste of the food, and also making it easier to clean the baking tray 140.

[0068] It is understandable that the baking tray 140 may be made of cast iron or other materials in addition to cast aluminum, and the present invention does not make any specific limitation on this.

[0069] It is understood that the upper surface of the baking tray 140 can be set to a flat surface, thereby facilitating the placement of pizza, or can be set to a concave-convex surface, thereby facilitating the grilling of steak or other ingredients. It is understood that the electric pizza oven of the embodiment of the present invention can be equipped with at least two sets of different types of baking trays 140, thereby facilitating the user to select a suitable baking tray 140 according to different foods.

[0070] Reference Figure 7 In some embodiments, a lighting fixture 500 is also installed on the top of the baking cavity 110. The lighting fixture 500 includes a lighting part, a mounting part 510 and a power connection part 520. The mounting part 510 is installed on the top wall of the inner pot 100 and extends into the mounting cavity 310. The lighting part includes a light source arranged in the mounting part 510 and a lampshade 530 covered on the periphery of the light source. The light source is located in the heat insulation cavity 210. The lampshade 530 is connected to the mounting part 510 and extends downward into the baking cavity 110. The top wall of the baking cavity 110 is provided with a guardrail 540 arranged along the circumference of the lighting part; the power connection part 520 is provided above the mounting part 510 and located in the mounting cavity 310. The power connection part 520 is electrically connected to the light source. The top wall of the inner shell 200 is provided with a protective cover 550 covered on the periphery of the power connection part 520.

[0071] By adopting the above structure, the lighting fixture 500 can illuminate the baking cavity 110, so that it is convenient for the user to put food into the baking cavity 110 or take food out of the baking cavity 110. By dividing the lighting fixture 500 into a lighting part, a mounting part 510 and a power connection part 520, and arranging the power connection part 520 above the mounting part 510 and in the mounting cavity 310, it is not only convenient to connect the lighting fixture 500 to the power, but also can protect the power connection part 520, reduce the influence of the high temperature in the baking cavity 110 on the power connection part 520, and thus help to improve the service life of the lighting fixture 500. In addition, by arranging a guardrail 540 arranged along the circumference of the lighting part on the top wall of the baking cavity 110, the lighting part can be protected to avoid collision between the baking tray 140 and the lampshade 530 when taking and placing the baking tray 140, thereby preventing the lighting fixture 500 from being damaged.

[0072] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Electric pizza oven, characterized in that, include: An inner container (100) is provided with a baking cavity (110); a front side wall (170) of the inner container (100) is provided with an opening communicating with the baking cavity (110); and the inner container (100) is also movably connected to a door body (400) capable of opening or closing the opening; A heating component, comprising a graphene heating tube (120) and a metal heating coil (130), wherein the graphene heating tube (120) is installed at the top of the baking cavity (110), and the metal heating coil (130) is installed at the bottom of the baking cavity (110); A baking tray (140) capable of being inserted into the baking cavity (110) and located between the graphene heating tube (120) and the metal heating coil (130); An inner shell (200) is arranged to cover the outer periphery of the inner liner (100); a heat insulation cavity (210) is provided between the inner side wall of the inner shell (200) and the outer side wall of the inner liner (100); a heat insulation component wrapped around the outer periphery of the inner liner (100) is installed in the heat insulation cavity (210); The outer shell (300) is covered on the outer periphery of the inner shell (200), and an installation cavity (310) for installing electronic components is provided between the inner wall of the outer shell (300) and the outer wall of the inner shell (200), and a plurality of heat dissipation holes are provided on the bottom wall of the outer shell (300).

2. The electric pizza oven according to claim 1, characterized in that: An electric control device (320) is installed in the installation cavity (310), and the connection terminals of the graphene heating tube (120) and the connection terminals of the metal heating coil (130) both pass through the heat insulation cavity (210) and extend into the installation cavity (310) to be electrically connected to the electric control device (320).

3. The electric pizza oven according to claim 1, characterized in that: The door body (400) comprises a door frame, a first heat-insulating glass (410), a second heat-insulating glass (420) and an outer layer of glass, the door frame being hinged to a side wall of the inner container (100), and the first heat-insulating glass (410), the second heat-insulating glass (420) and the outer layer of glass being sequentially installed on the door frame in a direction from back to front; The front side wall (170) of the inner container (100) is installed with a sealing strip (150), and the sealing strip (150) is arranged around the outer periphery of the opening. The front side wall (170) of the inner container (100) is also provided with an abutment portion (160) protruding forward. When the door body (400) closes the opening, the first insulating glass (410) abuts against the abutment portion (160) and the sealing strip (150).

4. The electric pizza oven according to claim 3, characterized in that: A heat dissipation fan is installed in the installation cavity (310), and the outer shell (300) is provided with a cold air inlet connected to the installation cavity (310); The front side wall (170) of the inner container (100) is provided with a first connecting hole (171) connected to the installation cavity (310); the first heat-insulating glass (410) and the second heat-insulating glass (420) are arranged at intervals to form a heat dissipation channel (440); the upper side wall of the door frame is provided with a hot air inlet (441) connected to the heat dissipation channel (440); the hot air inlet (441) is connected to the first connecting hole (171); and the lower end of the heat dissipation channel (440) has a hot air outlet (442) connected to the outside.

5. The electric pizza oven according to claim 4, characterized in that: The front side wall (170) of the inner pot (100) is further provided with a second communication hole (172) in communication with the heat insulation cavity (210), the second communication hole (172) being in communication with the hot air inlet (441), and the upper side wall of the inner pot (100) is provided with a third communication hole (180) in communication with the baking cavity (110). An air outlet box (220) is installed in the heat insulation cavity (210), and the air outlet box (220) has an air outlet cavity (221) connected to the third connecting hole (180), and the air outlet cavity (221) extends forward to be connected to the second connecting hole (172).

6. The electric pizza oven according to claim 5, characterized in that: The door frame comprises two side mounting plates (450) (450) arranged opposite to each other and an upper mounting plate (460) (460) connected between the upper ends of the two side mounting plates (450) (450), the two side mounting plates (450) (450) are both hinged to the front side wall (170) of the inner container (100), the hot air inlet (441) is opened on the upper mounting plate (460) (460), the first heat-insulating glass (410) and the second heat-insulating glass (420) are both installed between the two side mounting plates (450) (450) and abut against the upper mounting plate (460)(460), the outer layer of glass is installed on the front side surfaces of the two side mounting plates (450)(450) and extends upward relative to the upper mounting plate (460)(460) to cover the first connecting hole (171) and the second connecting hole (172), and the front side of the outer shell (300) is installed with a forward extending decorative plate (330), and the decorative plate (330) is at least partially located above the first connecting hole (171) and the second connecting hole (172). When the door body (400) closes the opening, the outer layer of glass is adjacent to the decorative plate (330).

7. The electric pizza oven according to claim 1, characterized in that: A control module (480) is installed on the front side of the outer shell (300), and the control module (480) has a display screen (481) and an adjustment knob (482). A light-emitting component is installed inside the adjustment knob (482), and the surface of the adjustment knob (482) has a light-transmitting portion corresponding to the light-emitting component.

8. The electric pizza oven according to claim 1, characterized in that: The thermal insulation component comprises at least five pieces of thermal insulation cotton, and all of the thermal insulation cotton is cooperatively coated on the upper side wall, the lower side wall, the left side wall, the right side wall and the rear side wall of the inner liner (100).

9. The electric pizza oven according to claim 1, characterized in that: The baking tray (140) is a cast aluminum part, and the upper surface of the baking tray (140) is coated with a ceramic coating.

10. The electric pizza oven according to claim 1, characterized in that: A lighting fixture (500) is also installed on the top of the baking cavity (110), and the lighting fixture (500) comprises a lighting portion, a mounting portion (510) and a power connection portion (520). The mounting portion (510) is installed on the top wall of the inner pot (100) and extends into the mounting cavity (310). The lighting portion comprises a light source arranged in the mounting portion (510) and a lampshade (530) arranged around the periphery of the light source, the light source is located in the heat-insulating cavity (210), the lampshade (530) is connected to the mounting portion (510) and extends downward into the baking cavity (110), and a protective fence (540) arranged along the circumference of the lighting portion is provided on the top wall of the baking cavity (110); The power connection portion (520) is arranged above the mounting portion (510) and is located in the mounting cavity (310); the power connection portion (520) is electrically connected to the light source; and a protective cover (550) is installed on the top wall of the inner housing (200) and is arranged on the periphery of the power connection portion (520).

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