Door body cooling system and cooking utensil

Abstract

The utility model provides a door body cooling system which comprises a door body, a cooling module and a control module. The door body comprises an outer-layer plate and an inner-layer plate, the outer-layer plate and the inner-layer plate are fixedly connected, a vertically-through heat dissipation air channel is arranged between the outer-layer plate and the inner-layer plate, and the outer-layer plate and the inner-layer plate of the heat dissipation air channel are arranged in a sealed mode; the cooling module comprises an air blowing assembly, a first air outlet of the air blowing assembly is adjacent to an upper end opening of the heat dissipation air channel and faces the upper end opening, and when the air blowing assembly blows air towards the door body, airflow flows through the upper end opening of the heat dissipation air channel; the control module is electrically connected with the cooling module and used for controlling on / off and blowing power of the blowing assembly. The door body cooling system is simple in structure, the door body is designed in a light weight mode, and the good heat dissipation effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of electrical technology, specifically relating to a door cooling system and a cooking appliance. Background Technology

[0002] An oven is a sealed appliance used to bake food or dry products. It is divided into household ovens and industrial ovens. Household ovens can be used to process some pasta, while industrial ovens are equipment used in industry to dry products. They are also called baking ovens or drying boxes.

[0003] After prolonged high-power operation, the oven door becomes very hot, causing the surrounding air to heat up as well. This can easily burn the skin of people passing near the oven door, and accidental contact with the oven door increases the risk of burns. Common solutions to address the issue of excessive oven door temperature include the following:

[0004] (1) Thicken the door body, increasing the door body thickness to 35-45mm;

[0005] (2) Limit the maximum temperature inside the oven cavity, generally limiting the maximum temperature to below 200℃;

[0006] (3) Make ventilation holes around the door, usually on the side of the door;

[0007] (4) The door is made of multi-layered glass composite;

[0008] (5) Install a fan inside the door to allow the gas to flow inside the door and cool it down.

[0009] However, the above solutions have certain problems. For example, thickening the door or using multi-layered glass would make the door bulky, difficult to open and close, and would also affect space. Limiting the oven temperature would affect the product's performance. Using side-opening ventilation holes would have limited heat dissipation and would affect aesthetics. Installing a fan inside the door, such as in the oven disclosed in CN216494949U, where the oven door uses a multi-layered glass structure with a fan and camera installed in the cavity between the layers of glass to control the door temperature, would result in high temperatures inside the door and limited space, making it difficult to install a fan in practice. Furthermore, high temperatures would significantly affect the lifespan of the fan.

[0010] Therefore, it is necessary to design a device that can effectively reduce the temperature of the door. Utility Model Content

[0011] In view of this, the purpose of this utility model is to provide a door cooling system that is easy to disassemble and operates stably, and a cooking appliance using the door cooling system.

[0012] To solve the above-mentioned technical problems, this utility model provides a door cooling system, including a door body, a cooling module and a control module;

[0013] The door body includes an outer layer plate and an inner layer plate, which are fixedly connected. A heat dissipation duct is provided between the outer layer plate and the inner layer plate, and the outer layer plate and the inner layer plate of the heat dissipation duct are sealed together.

[0014] The cooling module includes a blower assembly. The first air outlet of the blower assembly is adjacent to and faces the upper port of the heat dissipation duct. When the blower assembly blows air towards the door, the airflow passes through the upper port of the heat dissipation duct.

[0015] The control module is electrically connected to the cooling module and is used to control the on / off state of the blower assembly and the blower power.

[0016] Preferably, the blowing assembly includes a convection fan and an air guide, the air guide includes a first air inlet and a first air outlet, the convection fan includes a second air outlet 206, the convection fan and the air guide are fixedly connected, and the second air outlet 206 of the convection fan is connected to the first air inlet of the air guide.

[0017] Preferably, the first air inlet of the air guide is opened on the upper surface of the air guide, the first air outlet is opened on the side of the air guide, and the air guide duct is formed through the air guide between the first air inlet and the first air outlet.

[0018] The convection fan is positioned above the air guide, and the second air outlet 206 of the convection fan is opened towards the air guide and is connected to the first air inlet.

[0019] Preferably, the first air outlet has multiple spaced air guides at the port facing the door, and each air guide has an adjustable air guide plate inside.

[0020] Preferably, the first air outlet of the blower assembly is perpendicular to the upper port of the heat dissipation channel, so that a negative pressure zone is formed above the upper port of the heat dissipation channel.

[0021] Preferably, in the length direction of the door body, the ratio of the length of the heat dissipation duct to the length of the door body is (0.5-0.8):1.

[0022] This utility model also provides a cooking appliance, including an appliance body and a door cooling system as described in any of the above claims. The appliance body is provided with a cavity for cooking, the cavity is open on one side, and the door is provided on the open side of the cavity and is movably connected to the appliance body. The door can seal the cavity.

[0023] The cooling module and the control module are located above the main body of the appliance and are fixedly connected to the main body of the appliance.

[0024] Preferably, the cooling module further includes a first temperature sensor, which is disposed on the lower surface of the blower assembly and protrudes downward. The first temperature sensor faces the connection between the door and the appliance body and is used to detect the temperature of the door when the door and the cavity are closed.

[0025] The first temperature sensor is electrically connected to the control module, and the control module controls the wind speed of the blower assembly based on the temperature data.

[0026] Preferably, the cooling module further includes a second temperature sensor, which is disposed within the cavity of the appliance body for detecting the temperature within the cavity;

[0027] The second temperature sensor is electrically connected to the control module, and the control module controls the wind speed of the blower assembly based on the temperature data.

[0028] Compared to existing technologies, the door cooling system and cooking appliances of this solution have at least the following beneficial effects:

[0029] 1. The door cooling system of this solution sets up a heat dissipation duct that runs vertically through the door and sets up a blower component on the side that blows air towards the upper end of the heat dissipation duct. This creates a negative pressure zone above the upper end of the heat dissipation duct, which drives the airflow in the heat dissipation duct to flow out from bottom to top, thereby removing the temperature of the door and achieving the effect of reducing the temperature of the door.

[0030] 2. The door cooling system in this solution does not require increasing the thickness of the door, thus achieving a lightweight design for the door.

[0031] 3. The cooking appliances provided in this solution use a temperature sensor to detect the temperature at the door in real time, and adjust the airflow of the blower assembly to adjust the temperature, thereby achieving precise temperature control and improving the user experience. Attached Figure Description

[0032] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0033] Figure 1 A schematic diagram of the door body of the door cooling system provided in this embodiment of the utility model;

[0034] Figure 2 A schematic diagram of the air guide component of the door cooling system provided in this embodiment of the utility model;

[0035] Figure 3 A schematic diagram of the door cooling system provided in this embodiment of the utility model;

[0036] Figure 4 This is a schematic diagram of the structure of a cooking utensil provided in another embodiment of the present invention;

[0037] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0038] Figure 6 This is a cross-sectional structural diagram of a cooking appliance provided in another embodiment of the present invention.

[0039] Reference numerals: 100-Door cooling system, 10-Door body, 20-Cooling module, 30-Control module, 101-Outer plate, 102-Inner plate, 103-Heat dissipation duct, 104-Upper port, 201-Blower assembly, 202-First air outlet, 203-Convection fan, 204-Air guide, 205-First air inlet, 206-Second air outlet, 207-Air guide port, 400-Equipment body, 401-Cavity, 402-First temperature sensor, 403-Second temperature sensor. Detailed Implementation

[0040] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0041] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0042] Please refer to Figures 1-3 To solve the above-mentioned technical problems, this utility model provides a door cooling system 100, including a door 10, a cooling module 20 and a control module 30.

[0043] The door body 10 includes an outer layer plate 101 and an inner layer plate 102, which are fixedly connected. A vertically penetrating heat dissipation duct 103 is provided between the outer layer plate 101 and the inner layer plate 102, and the outer layer plate 101 and the inner layer plate 102 of the heat dissipation duct 103 are sealed together. It can be understood that the heat dissipation duct 103 can be a vertically penetrating space formed in the middle when the outer layer plate 101 and the inner layer plate 102 are fixedly connected, or the heat dissipation duct 103 can be an independent component, in which case the outer layer plate 101... The heat dissipation duct 103 is sandwiched between the inner plate 102 and the outer plate 101 and the inner plate 102 of the heat dissipation duct 103 and are fixedly connected. The sealing between the outer plate 101 and the inner plate 102 of the heat dissipation duct 103 means that in the door body 10, the opposite surfaces where the outer plate 101 and the inner plate 102 are connected are sealed except for the heat dissipation duct 103. That is, the airflow can only flow through the heat dissipation duct 103 through the door body 10, so that the airflow is more uniform when it flows through, and the connection strength between the outer plate 101 and the inner plate 102 will not be damaged, thus ensuring the service life of the door body 10.

[0044] The cooling module 20 includes a blower assembly. The first air outlet 202 of the blower assembly is adjacent to and faces the upper port 104 of the heat dissipation duct 103. When the blower assembly blows air towards the door 10, the airflow flows through the upper port 104 of the heat dissipation duct 103. It can be understood that the heat dissipation duct 103 includes an upper port 104 and a lower port. The upper port 104 is located above the door 10, and the lower port is located below the door 10. When the first air outlet 202 of the blower assembly blows air towards the upper port 104, it can drive the airflow in the heat dissipation duct 103, thereby removing the heat from the door 10 through the airflow and reducing the temperature of the door 10.

[0045] The control module 30 is electrically connected to the cooling module 20 and is used to control the opening / closing of the air blowing assembly and the air blowing power. For example, the door cooling system 100 can control the operating condition of the air blowing assembly according to the cooling requirements. When a large amount of heat dissipation is not required, a normal heat dissipation mode can be used, such as not turning on the air blowing assembly or using the air blowing assembly at low speed. When a large amount of heat dissipation is required, such as in a high-temperature baking mode, a high-efficiency heat dissipation mode can be used, such as increasing the power of the air blowing assembly and the air blowing speed, thereby accelerating the cooling speed of the door 10.

[0046] Please refer to Figures 1-6 In this embodiment, the door cooling system 100 has a heat dissipation duct 103 provided in the door 10, and uses a blower assembly to blow air towards the upper port 104 of the heat dissipation duct 103, so that a negative pressure zone of airflow is formed above the upper port 104. According to Bernoulli's equation... Where C is a constant, p is the fluid pressure, ρ is the fluid density, v is the flow velocity, h is the height, and g is the acceleration due to gravity. During the process of the air blowing from the air-blowing assembly to the upper port 104, the airflow height and acceleration due to gravity remain constant; that is, ρgh can be considered constant and has no effect. Therefore, it can be concluded that when there is no airflow at the upper port 104 of the heat dissipation duct 103, the pressure at the upper and lower ports of the heat dissipation duct 103 is the same. When airflow passes through the upper port 104 of the heat dissipation duct 103, the greater the airflow velocity, the lower the pressure at the upper port 104, i.e., "higher velocity, lower pressure," while the pressure at the lower port is atmospheric pressure and remains constant. To maintain pressure balance, the airflow moves from bottom to top along the heat dissipation duct 103, thereby carrying away heat from the door 10. Figure 6 As shown, the airflow direction in the air guide and the heat dissipation duct is indicated. Furthermore, the greater the wind speed of the blowing assembly, the lower the pressure at the upper port 104, resulting in a greater airflow velocity in the heat dissipation duct 103 and a better cooling effect. Therefore, the cooling rate or cooling effect of the door 10 can be controlled by controlling the blowing power of the blowing assembly.

[0047] Please refer to Figures 1-3In this embodiment, the air blowing assembly includes a convection fan 203 and an air guide 204. The air guide 204 includes a first air inlet 205 and a first air outlet 202. The convection fan 203 includes a second air outlet 206. The convection fan 203 and the air guide 204 are fixedly connected, and the second air outlet 206 of the convection fan 203 is connected to the first air inlet 205 of the air guide 204. It is understood that the convection fan 203 can blow air outwards and the airflow speed can be controlled. The convection fan 203 is connected to the first air inlet 205 of the air guide 204 through the second air outlet 206, and the first air outlet 202 of the air guide 204 faces the upper port 104 of the heat dissipation duct 103, thus directionally guiding the airflow to the upper port 104 of the heat dissipation duct 103, thereby achieving air blowing to the upper port 104. The air guide 204 can accurately guide the airflow of the convection fan 203 to achieve effective heat dissipation.

[0048] Please refer to Figures 1-3 In this embodiment, the first air inlet 205 of the air guide 204 is opened on the upper surface of the air guide 204, and the first air outlet 202 is opened on the side of the air guide 204. The air guide 204 is connected between the first air inlet 205 and the first air outlet 202 to form an air guide duct. It can be understood that the air guide 204 is used to guide the airflow of the convection fan 203 to the heat dissipation duct 103. The specific shape of the air guide 204 can be adjusted according to the design of the position during actual use, the size of the cooking utensils, etc., as long as the air outlet faces the upper port 104 of the heat dissipation duct 103.

[0049] The convection fan 203 is positioned above the air guide 204. The second air outlet 206 of the convection fan 203 faces the air guide 204 and is connected to the first air inlet 205. For example, the first air inlet 205 and the second air outlet 206 can be connected by a sleeve, so that the airflow of the convection fan 203 can only flow to the second air outlet 206. Alternatively, connecting pipes or other components can be used to connect the first air inlet 205 and the second air outlet 206 to ensure that the airflow of the convection fan 203 does not leak. This ensures the heat dissipation effect and user experience of the cooking appliance during use.

[0050] Please refer to Figures 1-3In other embodiments, the first air outlet 202 has multiple spaced air guides 207 at the port facing the door 10, and an adjustable air guide plate (not shown in the figure) is provided inside the air guide 207. It can be understood that the air guides 207 can further restrict the direction of airflow when it blows out from the air guide 204, such as restricting the airflow at both ends of the first air outlet 202 of the air guide 204 from converging towards the middle. This improves the utilization rate of airflow, concentrates the airflow on the heat dissipation duct 103, and improves heat dissipation efficiency. Furthermore, the air guide plate can be configured as an air guide plate similar to an air conditioner vent, which can deflect up and down or left and right to control the direction of airflow, further enhancing the control of airflow direction and improving heat dissipation efficiency.

[0051] Please refer to Figures 1-6 In this embodiment, the first air outlet 202 of the blower assembly is perpendicular to the upper port 104 of the heat dissipation channel, creating a negative pressure zone above the upper port 104 of the heat dissipation channel. It can be understood that the perpendicularity of the first air outlet 202 to the upper port 104 means that the air outlet direction of the first air outlet 202 is perpendicular to the orientation of the upper port 104, and the first air outlet 202 and the upper port 104 are adjacent to each other. This allows the air within the heat dissipation channel 103 to move upwards more easily, thereby improving the heat dissipation effect.

[0052] Please refer to Figure 1 In this embodiment, the ratio of the length of the heat dissipation duct 103 to the length of the door 10 along its length direction is (0.5-0.8):1. For example, it can be 0.5:1, 0.6:1, 0.7:1, 0.8:1, etc. It can be understood that the length of the heat dissipation duct 103 refers to the opening length of the upper port 104 and the lower port. The longer the length, the better the heat dissipation effect of the door 10. Therefore, the area available for airflow is larger, and at a certain flow rate, more airflow passes through per unit time, thereby carrying away more heat. At the same time, it is necessary to ensure the strength of the door 10 and the connection strength between the outer plate 101 and the inner plate 102, so the length of the heat dissipation duct 103 needs to be limited.

[0053] Please refer to Figures 1-6 The preferred embodiment of this utility model also provides a cooking appliance, including an appliance body and a door cooling system 100 as described above. The appliance body is provided with a cavity for cooking, which is open on one side. A door 10 is provided on the open side of the cavity and is movably connected to the appliance body. The door 10 can seal the cavity.

[0054] The cooling module 20 and the control module 30 are located above the appliance body and are fixedly connected to the appliance body.

[0055] In this embodiment, the cooling module 20 further includes a first temperature sensor, which is disposed on the lower surface of the blower assembly and protrudes downward. The first temperature sensor faces the connection between the door 10 and the appliance body and is used to detect the temperature of the door 10 when the door 10 and the cavity are closed.

[0056] The first temperature sensor is electrically connected to the control module 30, which controls the airflow speed of the blower assembly based on the temperature data. Understandably, the control module 30 can adjust the airflow speed of the blower assembly in real time based on the temperature data detected by the first temperature sensor at the door 10. The temperature at the door 10 and the airflow speed of the blower assembly are positively correlated; that is, the higher the temperature, the greater the controlled airflow speed. This achieves intelligent control of the cooking appliance, ensuring good temperature control at the door 10 and a better user experience.

[0057] In a preferred embodiment, the cooling module 20 further includes a second temperature sensor, which is disposed in the cavity of the appliance body and is used to detect the temperature inside the cavity.

[0058] The second temperature sensor is electrically connected to the control module 30, which controls the airflow speed of the blower assembly based on the temperature data. Understandably, the control module 30 can adjust the airflow speed of the blower assembly in real time based on the temperature data detected by the second temperature sensor within the cavity. The temperature within the cavity corresponds to the temperature at the door 10 and is positively correlated with the airflow speed of the blower assembly; that is, the higher the temperature, the greater the controlled airflow speed. This achieves intelligent control of the cooking appliance, ensuring good temperature control at the door 10 and a better user experience.

[0059] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A door cooling system, characterized in that, Includes the door body, cooling module, and control module; The door body includes an outer layer plate and an inner layer plate, which are fixedly connected. A heat dissipation duct is provided between the outer layer plate and the inner layer plate, and the outer layer plate and the inner layer plate of the heat dissipation duct are sealed together. The cooling module includes a blower assembly. The first air outlet of the blower assembly is adjacent to and faces the upper port of the heat dissipation duct. When the blower assembly blows air towards the door, the airflow passes through the upper port of the heat dissipation duct. The control module is electrically connected to the cooling module and is used to control the on / off state of the blower assembly and the blower power.

2. The door cooling system as described in claim 1, characterized in that, The blowing assembly includes a convection fan and an air guide. The air guide includes a first air inlet and a first air outlet. The convection fan includes a second air outlet. The convection fan and the air guide are fixedly connected, and the second air outlet of the convection fan is connected to the first air inlet of the air guide.

3. The door cooling system as described in claim 2, characterized in that, The first air inlet of the air guide is opened on the upper surface of the air guide, and the first air outlet is opened on the side of the air guide. The air guide is connected to the first air inlet and the first air outlet to form an air guide channel. The convection fan is positioned above the air guide, and the second air outlet of the convection fan faces the air guide and is connected to the first air inlet.

4. The door cooling system as described in claim 2, characterized in that, The first air outlet has multiple spaced air guides at the port facing the door, and each air guide has an adjustable air guide plate inside.

5. The door cooling system as described in claim 1, characterized in that, The first air outlet of the blower assembly is perpendicular to the upper port of the heat dissipation duct, so that a negative pressure zone is formed above the upper port of the heat dissipation duct.

6. The door cooling system as described in claim 1, characterized in that, Along the length of the door, the ratio of the length of the heat dissipation duct to the length of the door is (0.5-0.8):

1.

7. A cooking utensil, characterized in that, The appliance includes a main body and a door cooling system as described in any one of claims 1-6, wherein the main body is provided with a cavity for cooking, the cavity is open on one side, the door is disposed on the open side of the cavity and is movably connected to the main body, and the door can seal the cavity; The cooling module and the control module are located above the main body of the appliance and are fixedly connected to the main body of the appliance.

8. The cooking appliance as described in claim 7, characterized in that, The cooling module also includes a first temperature sensor, which is disposed on the lower surface of the blower assembly and protrudes downward. The first temperature sensor faces the connection between the door and the main body of the appliance and is used to detect the temperature of the door when the door and the cavity are closed. The first temperature sensor is electrically connected to the control module, and the control module controls the wind speed of the blower assembly based on the temperature data.

9. The cooking appliance as described in claim 7, characterized in that, The cooling module also includes a second temperature sensor, which is disposed in the cavity of the appliance body and is used to detect the temperature inside the cavity. The second temperature sensor is electrically connected to the control module, and the control module controls the wind speed of the blower assembly based on the temperature data.

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