Door assembly and cooking utensil

Abstract

The utility model discloses a door assembly and a cooking utensil, and relates to the technical field of kitchen appliances. The door assembly comprises a door body, a support and a camera, the support is arranged in the door body, the support comprises a cavity, air inlets and an air outlet, the air inlets and the air outlet are communicated with the cavity, the number of the air inlets is two, the air inlets are oppositely arranged, and each air inlet is connected with a first fan; the camera is arranged in the cavity, and gas entering the cavity from the air inlet flows through the camera. The door assembly can achieve a heat dissipation effect on the camera, the performance of the camera is ensured, and the service life of the camera is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a door assembly and a cooking appliance. Background Art

[0002] With the continuous improvement of people's living standards, cooking appliances with a variety of cooking functions have gradually become an essential cooking device in people's kitchens. In order to increase the intelligence level of cooking appliances, a camera is generally installed in the door assembly of the cooking appliance to identify the types and ripeness of ingredients in the cavity during the cooking process.

[0003] However, when the cooking appliance is working, a large amount of heat will be transferred to the camera installation position through the door glass, and the high working environment temperature will affect the performance and service life of the camera. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a door assembly and a cooking appliance, which can play a role in dissipating heat for the camera, ensure the performance of the camera, and extend the service life of the camera.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A door assembly, comprising:

[0007] A door body;

[0008] A bracket, the bracket is arranged in the door body, the bracket includes a cavity and an air inlet and an air outlet communicated with the cavity, there are two air inlets and they are arranged oppositely, and each air inlet is connected with a first fan;

[0009] A camera, the camera is arranged in the cavity, and the gas entering the cavity from the air inlet flows through the camera.

[0010] As an optional scheme of the above door assembly, there are two air outlets of the bracket and they are arranged oppositely

[0011] As an optional scheme of the above door assembly, both the air outlet and the air inlet are arranged on opposite sides of the bracket where the camera is located, and the air inlet is staggeredly arranged with the air outlet on the opposite side.

[0012] As an optional scheme of the above door assembly, the air outlet is located above the air inlet.

[0013] As an alternative to the above-mentioned door assembly, the bracket includes a top plate, a back plate and a first bottom plate connected in sequence. Side plates are provided on opposite sides of the back plate. The first bottom plate is arranged at an obtuse angle with the back plate. Each side plate is provided with the air inlet and the air outlet, and the distance between the air inlet and the first bottom plate is less than the distance between the air outlet and the first bottom plate.

[0014] As an alternative to the above-mentioned door assembly, a first heat dissipation pipeline is arranged inside the door body. The side plate has an opening, and the part of the opening connecting the first heat dissipation pipeline forms the air inlet, and the remaining part of the opening forms the air outlet.

[0015] As an alternative to the above-mentioned door assembly, two first heat dissipation pipelines are arranged inside the door body. Each first heat dissipation pipeline is communicated with one air inlet, and each first heat dissipation pipeline is connected with one first fan.

[0016] As an alternative to the above-mentioned door assembly, a first air inlet is opened at the bottom of the door body. The first heat dissipation pipeline is L-shaped. The bracket is located at the upper part of the door body. One end of the first heat dissipation pipeline extends horizontally and is communicated with the air inlet, and the other end of the first heat dissipation pipeline extends vertically to be close to the first air inlet.

[0017] A cooking appliance, characterized in that it includes the above-mentioned door assembly, and further includes a box body. An opening is provided on the front plate of the box body. The door assembly is hinged to the front plate to open or close the opening. The box body includes a second heat dissipation pipeline. A gas passage, a first air inlet and a first air outlet communicated with the gas passage are arranged inside the door body. The second air inlet of the second heat dissipation pipeline is opened on the front plate. When the door assembly closes the opening, the first air outlet is communicated with the second air inlet.

[0018] As an alternative to the above-mentioned cooking appliance, the second air outlet of the second heat dissipation pipeline is opened on the front plate. The second air outlet is located above the communication position of the first air outlet and the second air inlet, and the opening position of the second air outlet is in front of the communication position of the first air outlet and the second air inlet.

[0019] The beneficial effects of the present utility model:

[0020] The present utility model provides a door assembly and a cooking appliance. In this door assembly, a bracket is arranged inside the door body, and the cavity of the bracket is used to fix a camera. After the first fan is started, gas enters the cavity from the air inlet and is discharged through the air outlet. The two relatively arranged air inlets can ensure that the air flow passes through the entire surface of the camera. Compared with the case where it is difficult for gas to contact the part deviating from the gas flow direction during heat dissipation in a single gas flow direction, this structure can effectively take away the heat of the camera, play a role in dissipating heat from the camera, ensure the performance of the camera, and extend the service life of the camera. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the cooking appliance provided by the present utility model;

[0022] Figure 2 is a schematic structural diagram of the door assembly provided by the present utility model;

[0023] Figure 3 is an exploded view of the cooking appliance provided by the present utility model;

[0024] Figure 4 is a cross-sectional view of the cooking appliance provided by the present utility model;

[0025] Figure 5 is Figure 4 a partial enlarged view of part A in

[0026] Figure 6 is an exploded view of the door assembly provided by the present utility model;

[0027] Figure 7 is a front view of the door assembly provided by the present utility model;

[0028] Figure 8 is a schematic structural view of the bracket provided by the present utility model Figure 1 ;

[0029] Figure 9 is a schematic structural view of the bracket provided by the present utility model Figure 2 .

[0030] In the figure:

[0031] 1. Door assembly; 2. Cabinet; 3. Inner container;

[0032] 11. Door body; 12. First heat dissipation pipeline; 13. Bracket; 14. Camera; 15. First fan; 16. Heat dissipation cover plate; 17. Fan bracket; 18. Support frame; 21. Opening; 22. Second heat dissipation pipeline; 23. Second fan; 24. Front plate;

[0033] 111. Door panel; 112. Heat insulation board; 113. First air inlet; 114. First air outlet; 115. Gas channel; 131. Air inlet; 132. Air outlet; 133. Top plate; 134. Back plate; 135. First bottom plate; 136. Side plate; 137. Clamping plate; 138. Light shielding plate; 139. Second bottom plate; 171. Installation part; 172. Transition part; 173. Air inlet part; 181. Vertical part; 182. Horizontal part; 221. Upper cover; 222. Partition board; 223. Lower cover; 224. Second air inlet; 225. Second air outlet; 226. Condensation component; 227. Return box;

[0034] 1341. Installation post; 1342. Card slot; 1821. Horizontal board; 1822. Vertical board; 2221. Return hole. Detailed implementation mode

[0035] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0037] Unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] Unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0039] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0040] With the continuous improvement of people's living standards, cooking appliances with multiple cooking functions have gradually become essential cooking devices in people's kitchens. As Figure 1 and Figure 2 shown, the present embodiment provides a cooking appliance, which includes a box body 2 and a door assembly 1. An opening 21 is provided on the front plate 24 of the box body 2, and food ingredients can be put into the inner container 3 in the box body 2 through the opening 21 for cooking. The door assembly 1 is hinged to the front plate 24 to open or close the opening 21. Specifically, the cooking appliance can be a steam box, a steam oven, a steam convection oven or the like.

[0041] Since the cooking appliance needs to heat food ingredients, when the cooking appliance is working, the temperature inside the inner container 3 is very high, which is likely to affect the surrounding electronic components. As Figures 3 to 5 shown, to solve the above problems, a second heat dissipation pipeline 22 is provided in the box body 2. The second heat dissipation pipeline 22 is arranged outside the inner container 3 and has a second air inlet 224 and a second air outlet 225. After the heat dissipation fan is started, the cold air outside the box body 2 enters the second heat dissipation pipeline 22 through the second air inlet 224 and is discharged from the second heat dissipation pipeline 22 through the second air outlet 225, thereby taking away the heat dissipated by the inner container 3 and preventing it from affecting other electronic components in the box body 2.

[0042] Specifically, the second air inlet 224 of the second heat dissipation pipeline 22 is opened on the front plate 24. Generally speaking, cooking appliances are usually placed on a shelf or in a specially provided wall groove, resulting in poor air flow ability around the cooking appliance, and only the front space is open. Therefore, the second air inlet 224 is opened on the front plate 24 to facilitate the external cold air being sucked into the second heat dissipation pipeline 22 by the second fan 23.

[0043] Similarly, the second air outlet 225 of the second heat dissipation pipeline 22 is opened on the front plate 24, so that the air that has absorbed heat can be smoothly discharged, improving the heat dissipation capacity. In order to enable the gas in the second heat dissipation pipeline 22 to flow from the second air inlet 224 to the second air outlet 225, a second fan 23 is provided in the second heat dissipation pipeline 22.

[0044] In this embodiment, the second heat dissipation pipeline 22 includes an upper cover 221 and a lower cover 223 that are buckled with each other. A substantially horizontal partition plate 222 is provided between the upper cover 221 and the lower cover 223 to divide the second heat dissipation pipeline 22 into an air inlet duct and an air outlet duct arranged up and down. The second fan 23 is provided on the partition plate 222. In this setting, both the second air inlet 224 and the second air outlet 225 can be opened on the front plate 24, ensuring the heat dissipation capacity.

[0045] In order to reduce the water vapor content in the air discharged from the second air outlet 225, a condensation component 226 is provided in the air outlet duct. The condensation component 226 can condense water vapor into liquid water. In this embodiment, the cooking appliance further includes a return box 227. The return box 227 is provided in the air inlet duct. The partition plate 222 is provided with a return hole 2221. The condensed liquid water can flow into the return box 227 through the return hole 2221. The return box 227 can not only collect the condensed water, but also be connected to other pipelines to drain the condensed water to other required positions.

[0046] In order to increase the intelligence level of the cooking appliance, a camera 14 is generally installed in the door assembly 1 of the cooking appliance to identify the types and ripeness of the ingredients in the cavity during the cooking process. However, when the cooking appliance is working, a large amount of heat will be transferred to the installation position of the camera 14 through the glass of the door body 11, and the high working environment temperature will affect the performance and service life of the camera 14.

[0047] As Figure 6 and Figure 7 shown, to solve the above problems, the door assembly 1 provided in this embodiment includes a door body 11, a bracket 13, and a camera 14. The bracket 13 is provided in the door body 11. The bracket 13 includes a cavity and an air inlet 131 and an air outlet 132 that communicate with the cavity. There are two air inlets 131 and they are arranged oppositely. Each air inlet 131 is connected to a first fan 15. The camera 14 is provided in the cavity, and the gas entering the cavity from the air inlet 131 flows through the camera 14.

[0048] In the door assembly 1, a bracket 13 is provided in the door body 11, and the cavity of the bracket 13 is used to fix the camera 14. After the first fan 15 is started, the gas enters the cavity from the air inlet 131 and is discharged through the air outlet 132. The airflow entering from the two relatively arranged air inlets 131 can pass through the camera 14. Compared with the heat dissipation in a single airflow direction, it is difficult for the gas to contact the part that deviates from the gas flow direction. This structure can effectively take away the heat of the camera 14, dissipate the heat for the camera 14, ensure the performance of the camera 14, and extend the service life of the camera 14.

[0049] like Figure 7 As shown, the door body 11 is provided with a gas channel 115 and a first air inlet 113 and a first air outlet 114 connected to the gas channel 115. When the door assembly 1 closes the opening 21, the first air outlet 114 is connected to the second air inlet 224. When the second fan 23 is started, the external cold air enters the gas channel 115 through the first air inlet 113, and enters the second heat dissipation pipeline 22 through the first air outlet 114 and the second air inlet 224. The provision of the gas channel 115 can make the inlet and outlet of the heat dissipation path far apart, and the hot air discharged from the outlet will not affect the air temperature near the inlet, so as to ensure that the cooking utensil always has good heat dissipation capacity. Specifically, the first air inlet 113 is provided at the bottom end of the door body 11 so that the distance between the first air inlet 113 and the second air outlet 225 is maximized.

[0050] Furthermore, two first heat dissipation pipelines 12 are arranged in the door body 11, each of which is connected to an air inlet 131, and each of which is connected to a first fan 15. The bracket 13, the camera 14, the first heat dissipation pipeline 12 and the first fan 15 are all arranged in the gas channel 115. The arrangement of the first heat dissipation pipeline 12 can make the inlet of the path for dissipating heat for the camera 14 closer to the first air inlet 113 of the gas channel 115, so as to ensure that the temperature of the gas entering the first heat dissipation pipeline 12 is relatively low.

[0051] like Figure 2 and Figure 4 As shown, the door body 11 includes a door panel 111 and an insulation board 112, and the door panel 111 and the insulation board 112 are spaced apart to form a gas channel 115, and the camera 14 is arranged between the door panel 111 and the insulation board 112, and the insulation board 112 is transparent to ensure that the camera 14 can capture the food in the inner pot 3 through the insulation board 112.

[0052] Moreover, when the second fan 23 is started, the negative pressure in the second heat dissipation pipeline 22 can increase the air flow rate in the first heat dissipation pipeline 12, further improving the heat dissipation capacity of the camera 14, ensuring the performance of the camera 14, and extending its service life.

[0053] As Figures 2 to 7 shown, the first air outlet 114 faces the second air inlet 224 directly. When the second fan 23 is started, the external cold air enters the gas passage 115 through the first air inlet 113. Part of the air moves along the gas passage 115 to the first air outlet 114, and the other part of the air is sucked by the first fan 15 into the first heat dissipation pipeline 12, and after passing through the bracket 13, it moves to the first air outlet 114. Finally, both parts of the air will enter the second heat dissipation pipeline 22.

[0054] As Figure 6 and Figure 7 shown, the first fan 15 is fixed inside the door body 11 through the fan bracket 17. Specifically, the first fan 15 is arranged on one side of the fan bracket 17, and the other side of the fan bracket 17 is spaced from the door panel 111, so that air can enter the first fan 15 and enter the first heat dissipation pipeline 12 under the drive of the first fan 15.

[0055] Furthermore, the fan bracket 17 includes an installation part 171, a transition part 172 and an air inlet part 173 connected in sequence. The installation part 171 is used to install and fix the first fan 15. The distance between the installation part 171 and the door panel 111 is less than the distance between the air inlet part 173 and the door panel 111, so as to increase the air inlet area of the part where the first fan 15 is not installed, so as to increase the air inlet volume without increasing the thickness of the door body 11, thereby improving the heat dissipation effect on the camera 14.

[0056] In some embodiments, the fan can also be located on the side of the installation part 171 away from the heat insulation board 112.

[0057] As Figure 2 and Figure 7 shown, a support frame 18 is arranged between the door panel 111 and the heat insulation board 112. The support frame 18 can improve the overall strength of the door body 11, prevent the door body 11 from deforming, and can also form a gas passage 115 between the door panel 111 and the heat insulation board 112.

[0058] Specifically, the support frame 18 includes two vertical parts 181 arranged at intervals in the horizontal direction and a horizontal part 182 respectively connected to the two vertical parts 181. The door panel 111, the heat insulation board 112 and the two vertical parts 181 enclose a gas passage 115. The first air inlet 113 of the gas passage 115 is located at the bottom end of the door body 11, and the first air outlet 114 of the gas passage 115 is opened on the horizontal part 182.

[0059] In this embodiment, the horizontal portion 182 includes a transverse plate 1821 and a vertical plate 1822 which are connected to each other. The transverse plate 1821 and the vertical plate 1822 are arranged at an angle. Both ends of the transverse plate 1821 are respectively connected to the tops of the two vertical portions 181. The vertical plate 1822 is located on the side of the two vertical portions 181 away from the door panel 111. The first air outlet 114 is opened on the vertical plate 1822 to ensure that the first air outlet 114 can be directly opposite to the second air inlet 224.

[0060] As Figure 5 shown, even if the first air outlet 114 is directly opposite to the second air inlet 224, there is still a gap between the first air outlet 114 and the second air inlet 224. In order to prevent the hot air discharged from the second air outlet 225 from being re - inhaled into the second heat dissipation pipeline 22 through the gap between the first air outlet 114 and the second air inlet 224, the second air outlet 225 is located above the communication position of the first air outlet 114 and the second air inlet 224, and the opening 21 position of the second air outlet 225 is located in front of the communication position of the first air outlet 114 and the second air inlet 224.

[0061] Among them, the second air outlet 225 is located above the communication position of the first air outlet 114 and the second air inlet 224, so that the hot air discharged from the second air outlet 225 can cross over the door body 11 and thus be discharged outside the cooking appliance. And the opening 21 position of the second air outlet 225 is located in front of the communication position of the air outlet 132 and the second air inlet 224, which can enable the discharged hot air to cross over the door body 11 faster, keep the hot air away from the gap between the first air outlet 114 and the second air inlet 224, and avoid being re - inhaled.

[0062] In this embodiment, the heat insulation plate 112 includes at least two layers of transparent plates which are arranged at intervals. It can not only prevent the water vapor and oil fume in the inner container 3 from contacting the camera 14 and affecting the function of the camera 14, but also play a role in heat insulation and reduce the temperature of the camera 14.

[0063] In this embodiment, both the air outlet 132 and the air inlet 131 are arranged on the opposite sides of the bracket 13 where the camera 14 is located. That is to say, the air outlet 132 and the air inlet 131 are arranged on one side of the bracket 13 where the camera 14 is located, and the air outlet 132 and the air inlet 131 are also arranged on the opposite side of the bracket 13 where the camera 14 is located. And the air inlet 131 is staggeredly arranged with the air outlet 132 on the opposite side, so as to change the flow direction of the gas entering the cavity from the air inlet 131 and ensure that the gas can fully absorb the heat of the camera 14.

[0064] In this embodiment, the gases entering the cavity from the two air inlets 131 meet at the camera 14, and the two air outlets 132 are located on opposite sides of the camera 14. Among them, the gases entering the cavity from the two air inlets 131 will decelerate after meeting, so as to ensure that the gases can fully absorb the heat of the camera 14, improving the heat dissipation effect of the gases on the camera 14.

[0065] In this embodiment, there are two air outlets 132 provided on the bracket 13 and they are oppositely arranged. After the gases entering the cavity from the two air inlets 131 meet, their directions will change and even reverse flow, and at this time, the two oppositely arranged air outlets 132 can respectively make the reversely flowing gases quickly discharge from the cavity, ensuring the heat dissipation effect.

[0066] As Figure 8 shown, the two air inlets 131 are facing each other, which can ensure the same heat dissipation effect on both sides of the camera 14, avoiding heat accumulation caused by poor heat dissipation on one side and affecting the performance of the camera 14.

[0067] Optionally, the two air outlets 132 are facing each other, which can ensure that the structure of the bracket 13 is symmetric, avoiding the influence on the air flow velocity of the two air inlets 131 due to the asymmetric structure of the air outlets 132 and ensuring the uniform heat dissipation of the camera 14.

[0068] In this embodiment, the air outlet 132 is located above the air inlet 131. The above refers to that when the bracket 13 is installed in the door body 11, the position of the air outlet 132 is higher than that of the air inlet 131. This structure can make the air outlet 132 closer to the first air outlet 114 of the gas passage 115, so that the negative pressure generated by the second heat dissipation pipeline 22 can more effectively accelerate the gas flow velocity in the first heat dissipation pipeline 12 and improve the heat dissipation efficiency of the camera 14.

[0069] As Figure 8 and Figure 9 shown, the bracket 13 includes a top plate 133, a back plate 134 and a first bottom plate 135 connected in sequence. Side plates 136 are provided on opposite sides of the back plate 134. The first bottom plate 135 is arranged at an obtuse angle with the back plate 134. A cavity is formed by enclosing the top plate 133, the back plate 134, the first bottom plate 135 and the side plates 136. Each side plate 136 is provided with an air inlet 131 and an air outlet 132, and the distance between the air inlet 131 and the first bottom plate 135 is less than the distance between the air outlet 132 and the first bottom plate 135.

[0070] Specifically, the back plate 134 is provided with a mounting post 1341 and a card slot 1342. The bottom end of the camera 14 is snapped into the card slot 1342, and the camera 14 is fixedly connected to the mounting post 1341, so as to fix the camera 14 to the bracket 13 to ensure the temperature of the camera 14.

[0071] To increase the shooting range of the camera 14, the bracket 13 is located at the upper part of the door body 11. Therefore, the lens of the camera 14 is tilted downward, and the first bottom plate 135 and the back plate 134 are arranged at an obtuse angle to prevent the first bottom plate 135 from blocking the camera 14. The air inlet 131 is closer to the first bottom plate 135. When gas enters the cavity, part of the gas will flow downward to the first bottom plate 135 and then flow upward and be discharged through the air outlet 132. This process enables the camera 14 to exchange heat fully with the gas, improving the heat dissipation effect.

[0072] The top plate 133 covers the camera 14 in the vertical direction to protect the camera 14 from contacting the condensed water droplets and ensure the normal use of the camera 14. The side plate 136 has a structure that can be connected to the first heat dissipation pipeline 12 to improve the sealing performance between the bracket 13 and the first heat dissipation pipeline 12, ensuring that the cold air in the first heat dissipation pipeline 12 can enter the cavity and guaranteeing the heat dissipation effect.

[0073] In this embodiment, the side plate 136 has an open end. The part of the open end connected to the first heat dissipation pipeline 12 forms the air inlet 131, and the remaining part of the open end forms the air outlet 132. That is to say, the first heat dissipation pipeline 12 divides the open end of the side plate 136 into two parts, namely the air inlet 131 and the air outlet 132, thus simplifying the structure of the side plate 136 and enabling the side plate 136 to have only the open end.

[0074] Specifically, the side plate 136 is connected with clamping plates 137 on the opposite sides of the air inlet 131. When one end of the first heat dissipation pipeline 12 is connected to the air inlet 131, the clamping plates 137 abut against the side wall of the first heat dissipation pipeline 12. The clamping plates 137 can increase the contact area between the first heat dissipation pipeline 12 and the bracket 13, which can not only improve the relative stability between the first heat dissipation pipeline 12 and the bracket 13 but also improve the sealing performance, thus ensuring the heat dissipation effect.

[0075] In this embodiment, the bracket 13 further includes a light shielding plate 138, and the light shielding plate 138 is respectively connected to the first bottom plate 135 and the side plate 136. The light shielding plate 138 can block the space between the first bottom plate 135 and the side plate 136 of the bracket 13, blocking the stray light in the external environment and avoiding affecting the shooting effect of the camera 14.

[0076] Furthermore, a second bottom plate 139 is provided at the bottom of the back plate 134. The first bottom plate 135 and the light shielding plate 138 are both connected to the second bottom plate 139. At this time, the first bottom plate 135 and the light shielding plate 138 form an open structure that semi - surrounds the camera 14, which can not only play a role in light shielding but also maximize the avoidance of the shooting range of the camera 14.

[0077] Such as Figure 6 and Figure 7As shown, the door assembly 1 further includes a heat dissipation cover plate 16. The heat dissipation cover plate 16 is provided with ventilation grooves and is buckled on the door body 11. The ventilation grooves and the door body 11 form a first heat dissipation pipeline 12. This structure can reduce the material consumption of the first heat dissipation pipeline 12, which can not only reduce the weight but also reduce the cost.

[0078] In this embodiment, the first heat dissipation pipeline 12 is L-shaped. The bracket 13 is located at the upper part of the door body 11. One end of the first heat dissipation pipeline 12 extends horizontally and is connected to the air inlet 131, and the other end of the first heat dissipation pipeline 12 extends vertically to be close to the first air inlet 113. The first heat dissipation pipeline 12 can guide the cold air at the first air inlet 113 at the bottom of the door body 11 to the cavity of the bracket 13. Moreover, the dimension of the heat dissipation cover plate 16 in the direction perpendicular to the door panel 111 is smaller than the dimension of the support frame 18 in the direction perpendicular to the door panel 111 to ensure that there is a gap allowing air to flow between the heat dissipation cover plate 16 and the heat insulation plate 112. Furthermore, the L-shaped first heat dissipation pipeline 12 can also minimize the blockage of the gas in the gas passage 115.

[0079] As Figure 6 and Figure 7 shown, air inlets 131 are provided on both sides of the bracket 13 in the horizontal direction, and each air inlet 131 is connected to a first heat dissipation pipeline 12. That is to say, the two first heat dissipation pipelines 12 can introduce cold air into the cavity at the same time. The two cold air flows converging in the cavity need to change direction to flow out of the cavity, which improves the heat exchange efficiency between the cold air and the camera 14 and improves the heat dissipation performance.

[0080] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A door assembly, characterized in that: include: Door body (11); A bracket (13), the bracket (13) being arranged in the door body (11), the bracket (13) comprising a cavity and an air inlet (131) and an air outlet (132) connected to the cavity, the air inlet (131) being provided with two and arranged opposite to each other, and each of the air inlets (131) being connected to a first fan (15); A camera (14), wherein the camera (14) is arranged in the cavity, and the gas entering the cavity from the air inlet (131) flows through the camera (14).

2. The door assembly according to claim 1, characterized in that The bracket (13) is provided with two air outlets (132) which are arranged opposite to each other.

3. The door assembly according to claim 2, characterized in that The air outlet (132) and the air inlet (131) are both arranged on opposite sides of the bracket (13) located on the camera (14), and the air inlet (131) is staggered with the air outlet (132) on the opposite side.

4. The door assembly according to claim 2, characterized in that The air outlet (132) is located above the air inlet (131).

5. The door assembly according to claim 2, characterized in that The bracket (13) comprises a top plate (133), a back plate (134) and a first bottom plate (135) which are connected in sequence; side plates (136) are arranged on opposite sides of the back plate (134); the first bottom plate (135) and the back plate (134) are arranged at an obtuse angle; each of the side plates (136) is provided with the air inlet (131) and the air outlet (132); and the distance between the air inlet (131) and the first bottom plate (135) is smaller than the distance between the air outlet (132) and the first bottom plate (135).

6. The door assembly according to claim 5, characterized in that A first heat dissipation pipeline (12) is arranged in the door body (11), and the side plate (136) has an opening, the part of the opening connected to the first heat dissipation pipeline (12) forms the air inlet (131), and the rest of the opening forms the air outlet (132).

7. The door assembly according to claim 1, characterized in that Two first heat dissipation pipelines (12) are arranged in the door body (11), each of the first heat dissipation pipelines (12) is connected to one of the air inlets (131), and each of the first heat dissipation pipelines (12) is connected to one of the first fans (15).

8. The door assembly according to claim 7, characterized in that A first air inlet (113) is provided at the bottom of the door body (11); the first heat dissipation pipeline (12) is L-shaped; the bracket (13) is located at the upper part of the door body (11); one end of the first heat dissipation pipeline (12) extends horizontally and is connected to the air inlet (131); and the other end of the first heat dissipation pipeline (12) extends vertically to be close to the first air inlet (113).

9. A cooking utensil, characterized in that: The invention comprises a door assembly (1) as claimed in any one of claims 1 to 8, and further comprises a box body (2), wherein a front plate (24) of the box body (2) is provided with an opening (21), the door assembly (1) is hinged to the front plate (24) to open or close the opening (21), the box body (2) comprises a second heat dissipation pipeline (22), a gas channel (115) and a first air inlet (113) and a first air outlet (114) connected to the gas channel (115) are provided in the door body (11), the bracket (13) is arranged in the gas channel (115), a second air inlet (224) of the second heat dissipation pipeline (22) is opened in the front plate (24), and when the door assembly (1) closes the opening (21), the first air outlet (114) is connected to the second air inlet (224).

10. The cooking appliance according to claim 9, characterized in that The second air outlet (225) of the second heat dissipation pipeline (22) is opened on the front plate (24), the second air outlet (225) is located above the connection position between the first air outlet (114) and the second air inlet (224), and the opening (21) of the second air outlet (225) is located in front of the connection position between the first air outlet (114) and the second air inlet (224).

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