Cooking device with switchable air ducts

Abstract

The utility model relates to a cooking device with a switchable air duct, which comprises an upper assembly, a heating disc assembly and a first fan, the upper assembly comprises an upper main body and an upper cover plate, a cold air inlet is arranged on a bottom plate of the upper main body, the first fan is arranged between the cold air inlet and the heating disc assembly, and the heating disc assembly is arranged on the upper cover plate. The upper cover plate is movably connected to the heating disc assembly in a sleeved mode, the upper cover plate can move between an upper positioning point and a lower positioning point, and hot air is guided to be blown to the side edge by changing the position of the upper cover plate so that the hot air can be conveyed in a warm air mode or blown to the upper portion so that the cooking effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliances, specifically to a cooking device with switchable air ducts. Background Technology

[0002] Commonly available electric ceramic cooktops and electric frying pans typically consist of a main body and a heating element housed within it. To control the temperature rise within the main body, a cooling fan is usually installed at the bottom. For example, the utility model patent CN213334539U, entitled "A Multifunctional Electric Ceramic Cooktop," discloses a common structure for electric ceramic cooktops, including an outer shell, an electric ceramic cooktop installed within the shell, and a baking pan mounted on a drip tray. To reduce the temperature rise within the shell, a support and ventilation holes are provided at the bottom of the shell, with a fan at the bottom of the support. This allows the fan to blow heat from inside the shell to the outside through the ventilation holes. As can be seen from the accompanying drawings, a junction box and circuit board are also located inside the shell. When the electric ceramic cooktop is working, the internal temperature rises continuously due to heat accumulation, affecting the normal operation of the circuit board. The fan draws in cool air to cool the internal components of the electric ceramic cooktop. However, in existing technologies, the cool air flows quickly with a short path, resulting in limited heat removal from the internal components. Hot air is generally expelled downwards and cannot be utilized. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and improve the thermal energy utilization rate of cooking devices. It provides a cooking device with switchable air ducts, including an upper component, a heating plate component, and a first fan. The upper component includes an upper body and an upper cover plate. The heating plate component is fixedly installed in the upper body. The bottom plate of the upper body is provided with a cold air inlet. The first fan is disposed between the cold air inlet and the heating plate component. The heating plate component includes a ceramic plate, a heating element, and a panel. The heating element is disposed in the cavity formed by the ceramic plate and the panel. The side wall of the ceramic plate is provided with an upper air passage hole and a lower air passage hole. The middle area of ​​the upper cover plate is provided with a mounting through hole. The edge of the through hole is provided with a downwardly extending side baffle, and the upper cover plate is movably sleeved on the heating plate assembly. When the upper cover plate moves up to the upper positioning point, an annular air passage gap is formed between the upper cover plate and the upper body. The side baffle blocks the upper air passage hole and the lower air passage hole. Under the action of the first fan, the airflow passes through the outer wall of the ceramic plate and blows outward from the annular air passage gap. When the upper cover plate moves down to the lower positioning point, the annular air passage gap closes, the upper air passage hole and the lower air passage hole open, and the upper air passage hole and the lower air passage hole are respectively located on the upper and lower sides of the upper cover plate. Under the action of the first fan, the airflow passes through the lower air passage hole, the plate cavity and the upper air passage hole and blows upward.

[0004] Furthermore, it also includes a compression spring, which is disposed between the upper cover plate and the upper body. Under the action of the compression spring, the upper cover plate can move upward to the upper positioning point, at which time the upper surface of the upper cover plate is basically aligned with the panel.

[0005] Furthermore, it also includes a baking tray, which is detachably connected to the upper cover plate. When the baking tray is connected to the upper cover plate, the upper cover plate moves down to the lower positioning point under the gravity of the baking tray. At this time, the upper cover plate is combined with the upper body to close the air passage gap.

[0006] Furthermore, a reflector is provided in the upper body. The reflector is arranged in a columnar shape around the heating plate assembly. The upper end of the reflector is connected to the upper body, and the lower end is open and faces the first fan. The reflector and the heating plate assembly are arranged at intervals to form a vertical air passage. The air blown out by the first fan enters the vertical air passage.

[0007] Furthermore, the upper body includes an annular side plate, which is connected to the bottom plate, and the reflector is disposed on the inner side of the annular side plate and the two are arranged at intervals.

[0008] Furthermore, the upper body also includes an annular top plate, the outer side of which is connected to the annular side plate and the inner side of which is connected to the reflector. A ring of joint ribs with protrusions is also provided on the upper surface of the annular top plate. When the upper cover plate moves down to the lower positioning point, the upper cover plate and the joint ribs combine to close the annular air passage gap.

[0009] Furthermore, it also includes a lower component and a connecting column. The upper and lower components are arranged at intervals to form an intermediate open layer. The connecting column connects the upper and lower components, and external cold air can flow through the intermediate open layer to the cold air inlet of the upper main body.

[0010] Furthermore, simulated charcoal and flame strips are also provided in the intermediate suspended layer, and a second fan is provided in the lower assembly. The second fan is arranged below the simulated charcoal and flame strips and can blow air upwards. A PTC heating element is also included, which is disposed in the lower assembly. Thus, with the help of the second fan, the air heated by the PTC heating element can be blown upwards, simultaneously blowing hot air into the intermediate suspended layer while agitating the flame strips. When the heating plate of the upper main body is working, the hot air delivered from the lower layer preheats the air, thereby further increasing the temperature of the hot air output from the upper main body; when the heating plate assembly of the upper main body is not working, the lower assembly can output hot air independently.

[0011] Furthermore, it also includes a controller that can control the first fan, the heating element, and the second fan switch.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] First, by setting a movable upper cover plate, the upper cover plate can block or open the upper air vent, thereby controlling the air duct for hot air output. This invention includes at least two output air duct options; one, the upper cover plate blocks the upper air vent, and air is output through the annular air gap between the upper cover plate and the upper body. Hot air is blown outwards from the annular air gap located at the top of the cooking device, resulting in a wide blowing range. Furthermore, the hot air is thoroughly mixed within the upper body, making the temperature of the hot air blown in all directions more uniform. This ensures that the cooking... The device serves two purposes: firstly, it delivers heat; secondly, when the upper cover opens the upper air vent, the lowered upper cover combines with the upper body, simultaneously closing the annular air vent gap. Hot air is then blown upwards through the lower air vent, the plate cavity, and the upper air vent. Because the hot air output from this duct passes through the high-temperature plate cavity, the hot air output from the upper air vent is at a higher temperature, making it more suitable for cooking or heating the baking pan mentioned below or food placed on the upper cover. Thus, switching between the two output ducts achieves two different functions.

[0014] Secondly, by setting the reflector in the upper body, heat can be concentrated in the vertical air passage between the reflector and the heating plate assembly. When the cold air passes through the vertical air passage, it can carry away more heat, thereby increasing the temperature of the output hot air. The reflector can also block the influence of heat on the annular side plate on the outside of the main body, which helps to reduce the surface temperature rise of the annular side plate.

[0015] Third, by setting the lower component, on the one hand, an intermediate air gap can be formed between the upper components, and simulated charcoal and flame strips can be set in the intermediate air gap to increase the overall appearance of the cooking device; on the other hand, the controller can be set in the lower component, thereby reducing the impact of the heat emitted by the heating element on the electrical components. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the cooking device;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the cooking device;

[0018] Figure 3 This is a frontal cross-sectional view of the cooking device, showing the state in which the upper cover plate has been moved up to the upper positioning point;

[0019] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle;

[0020] Figure 5 This is a frontal cross-sectional view of the cooking device, showing the state in which the upper cover plate has been moved down to the lower positioning point;

[0021] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the upper cover plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1-7 As shown, a cooking device with switchable air ducts is presented. The cooking device includes an upper component 1, a heating plate component 2, and a first fan 3. The upper component 1 includes an upper body 11 and an upper cover plate 12. The heating plate component 2 is fixedly installed in the upper body 11. The bottom plate of the upper body 11 is provided with a cold air inlet 110. The first fan 3 is disposed between the cold air inlet 110 and the heating plate component 2. The heating plate component 2 includes a ceramic plate 21, a heating element 22, and a panel 23. The heating element 22 is disposed in a cavity 20 formed by the ceramic plate 21 and the panel 23. The side wall of the ceramic plate 21 is provided with an upper air passage 211 and a lower air passage 212. The middle area of ​​the upper cover plate 12 is provided with a mounting through hole 120, and the edge of the mounting through hole 120 is provided with a downward... An extended side baffle 121 is provided, and the upper cover 12 is movably sleeved on the heating plate assembly 2. When the upper cover 12 moves upward to the upper positioning point, an annular air passage gap is formed between the upper cover 12 and the upper body 11. The side baffle 121 blocks the upper air passage hole 211 and the lower air passage hole 212. Under the action of the first fan 3, the airflow passes through the outer wall of the ceramic plate 21 and blows outward from the annular air passage gap. When the upper cover 12 moves downward to the lower positioning point, the annular air passage gap closes, and the upper air passage hole 211 and the lower air passage hole 212 open. The upper air passage hole 211 and the lower air passage hole 212 are respectively located on the upper and lower sides of the upper cover 12. Under the action of the first fan 3, the airflow passes through the lower air passage hole 212, the plate cavity 20, and the upper air passage hole 211 and blows upward.

[0025] Furthermore, it also includes a compression spring 4, which is disposed between the upper cover plate 12 and the upper body 11. Under the action of the compression spring 4, the upper cover plate 12 can move upward to the upper positioning point, at which time the upper surface of the upper cover plate 12 is basically flush with the panel 23.

[0026] Furthermore, it also includes a baking tray 5, which is detachably connected to the upper cover plate 12. When the baking tray 5 is connected to the upper cover plate 12, the upper cover plate 12 moves down to the lower positioning point under the gravity of the baking tray 5. At this time, the upper cover plate 12 is combined with the upper body 11 to close the air passage gap. In order to facilitate the positioning of the upper cover plate 12, a support base plate 122 is provided at the bottom of the upper cover plate 12. Several trapezoidal grooves 123 for positioning are provided on the support base plate 122. Several support ribs 115 are provided on the bottom plate of the upper body 11. The upper cover plate 12 can be moved up and down by rotating it. Specifically, when the support rib 115 supports the support base plate 122, the upper cover plate 12 is at the upper positioning point; when the upper cover plate 12 rotates at a certain angle, the trapezoidal groove 123 aligns with the support rib 115, and under the pressure of the baking pan 5, the upper cover plate 12 moves down to the lower positioning point.

[0027] The baking pan 5 is made of metal and heats up when heated by hot air, so it can be used to cook food. Furthermore, several vent holes are provided on the baking pan 5, through which hot air can heat the food placed on the baking pan 5.

[0028] Furthermore, a reflector 13 is provided in the upper body 11. The reflector 13 is arranged in a columnar shape around the heating plate assembly 2. The upper end of the reflector 13 is connected to the upper body 11, and the lower end is open and faces the first fan 3. The reflector 13 and the heating plate assembly 2 are arranged at intervals to form a vertical air passage 130. The air blown out by the first fan 3 enters the vertical air passage 130.

[0029] Furthermore, the upper body 11 includes an annular side plate 111, which is connected to the bottom plate, and the reflector 13 is disposed on the inner side of the annular side plate 111 and the two are arranged at intervals.

[0030] Furthermore, the upper body 11 also includes an annular top plate 112, the outer side of which is connected to the annular side plate 111, and the inner side is connected to the reflector 13. A ring of connecting ribs 113 with protrusions is also provided on the upper surface of the annular top plate 112. When the upper cover plate 12 moves down to the lower positioning point, the upper cover plate 12 and the connecting ribs 113 combine to close the annular air passage gap.

[0031] Furthermore, it also includes a lower component 6 and a connecting column 61. The upper component 1 and the lower component 6 are arranged vertically at intervals to form an intermediate overhead layer 100. The connecting column 61 connects the upper component 1 and the lower component 6. External cold air can flow through the intermediate overhead layer 100 to the cold air inlet 110 of the upper main body 11.

[0032] Furthermore, simulated charcoal 62 and flame strip 63 are also provided in the intermediate suspended layer 100, and a second fan 64 is also provided in the lower component 6. The second fan 64 is arranged below the simulated charcoal 62 and flame strip 63 and can blow air upwards. A PTC heating element 65 is also included, which is disposed in the lower component 6. Thus, with the help of the second fan 64, the air heated by the PTC heating element 65 can be blown upwards, simultaneously blowing the flame strip 63 and supplying hot air to the intermediate suspended layer 100. When the heating plate of the upper main body 11 is working, the hot air supplied from the lower layer is equivalent to preheating the air, thereby further increasing the temperature of the hot air output from the upper main body 11; when the heating plate component 2 of the upper main body 11 is not working, the lower component 6 can output hot air independently.

[0033] Furthermore, it also includes a controller that can control the switching of the first fan 3, the heating element 22, and the second fan 64.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] First, by providing a movable upper cover plate 12, the upper cover plate 12 can block or open the upper air vent 211, thereby controlling the air duct for hot air output. This invention includes at least two output air duct options; one, the upper cover plate 12 blocks the upper air vent 211, and air is output through the annular air vent gap between the upper cover plate 12 and the upper body 11. Hot air is blown outwards from the annular air vent gap located at the top of the cooking device, resulting in a wide blowing range. Furthermore, the hot air is thoroughly mixed within the upper body 11, making the temperature of the hot air blown in all directions more uniform. Thus, the cooking device effectively... Firstly, it provides heating; secondly, when the upper cover plate 12 opens the upper air passage 211, the lowered upper cover plate 12 will combine with the upper body 11, thereby simultaneously closing the annular air passage gap. At this time, hot air is blown upward through the lower air passage 212, the plate cavity 20, and the upper air passage 211. Because the hot air output from this air duct passes through the high-temperature plate cavity 20, the hot air output from the upper air passage 211 has a higher temperature, which is more suitable for cooking or heating the baking pan 5 mentioned below or food placed on the upper cover plate 12. It can be seen that two different functions are achieved by switching between the two output air ducts.

[0036] Secondly, by setting the reflector 13 in the upper body 11, heat can be concentrated in the vertical air passage 130 between the reflector 13 and the heating plate assembly 2. When the cold air passes through the vertical air passage 130, it can carry away more heat, thereby increasing the temperature of the output hot air. The reflector 13 can also block the influence of heat on the annular side plate 111 on the outer side of the body, which helps to reduce the surface temperature rise of the annular side plate 111.

[0037] Third, by setting the lower component 6, on the one hand, an intermediate suspended layer 100 can be formed between the upper component 1, and simulated charcoal 62 and flame cloth strip 63 are also set in the intermediate suspended layer 100 to increase the overall appearance of the cooking device; on the other hand, the controller can be set in the lower component 6, thereby reducing the impact of the heat emitted by the heating element on the electrical components.

[0038] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A cooking device with switchable air ducts, characterized in that, The device includes an upper component, a heating plate component, and a first fan. The upper component comprises an upper body and an upper cover plate. The heating plate component is fixedly installed in the upper body. The bottom plate of the upper body has a cold air inlet. The first fan is disposed between the cold air inlet and the heating plate component. The heating plate component includes a ceramic plate, a heating element, and a panel. The heating element is disposed in the cavity formed by the ceramic plate and the panel. The side wall of the ceramic plate has an upper air passage and a lower air passage. The upper cover plate has a mounting through hole in the middle area, and a downwardly extending side baffle is provided at the edge of the mounting through hole. The upper cover plate is movable. The upper cover is movably connected to the heating plate assembly. When the upper cover moves up to the upper positioning point, an annular air passage gap is formed between the upper cover and the upper body. The side baffle blocks the upper and lower air passage holes. Under the action of the first fan, the airflow passes through the outer wall of the ceramic plate and then blows outward from the annular air passage gap. When the upper cover moves down to the lower positioning point, the annular air passage gap closes, the upper and lower air passage holes open, and the upper and lower air passage holes are respectively located on the upper and lower sides of the upper cover. Under the action of the first fan, the airflow passes through the lower air passage hole, the plate cavity, and the upper air passage hole and blows upward.

2. The cooking device with switchable air duct according to claim 1, characterized in that, It also includes a compression spring, which is disposed between the upper cover plate and the upper body. Under the action of the compression spring, the upper cover plate can move upward to the upper positioning point, at which time the upper surface of the upper cover plate is basically aligned with the panel.

3. The cooking device with switchable air duct according to claim 2, characterized in that, It also includes a baking tray, which is detachably connected to the upper cover plate. When the baking tray is connected to the upper cover plate, the upper cover plate moves down to the lower positioning point under the gravity of the baking tray. At this time, the upper cover plate is combined with the upper body to close the air passage gap.

4. The cooking device with switchable air duct according to claim 1, characterized in that, The upper body is provided with a reflector, which is arranged in a columnar shape around the heating plate assembly. The upper end of the reflector is connected to the upper body, and the lower end is open and faces the first fan. The reflector and the heating plate assembly are arranged at intervals to form a vertical air passage, and the air blown out by the first fan flows into the vertical air passage.

5. The cooking device with switchable air duct according to claim 4, characterized in that, The upper body includes an annular side plate, which is connected to the bottom plate. The reflector is disposed on the inner side of the annular side plate and the two are arranged at intervals.

6. The cooking device with switchable air duct according to claim 5, characterized in that, The upper body also includes an annular top plate, the outer side of which is connected to the annular side plate and the inner side of which is connected to the reflector. A ring of joint ribs with protrusions is also provided on the upper surface of the annular top plate. When the upper cover plate moves down to the lower positioning point, the upper cover plate and the joint ribs combine to close the annular air passage gap.

7. The cooking apparatus with switchable air ducts according to any one of claims 1-6, characterized in that, It also includes a lower component and a connecting column. The upper and lower components are arranged at intervals to form an intermediate open layer. The connecting column connects the upper and lower components, and external cold air can flow through the intermediate open layer to the cold air inlet of the upper main body.

8. The cooking apparatus with switchable air ducts according to claim 7, characterized in that, Simulated charcoal and flame strips are also provided in the intermediate elevated layer, and a second fan is also provided in the lower component. The second fan is arranged below the simulated charcoal and flame strips and can blow air upwards.

9. The cooking apparatus with switchable air ducts according to claim 8, characterized in that, It also includes a controller that can control the first fan, the heating element, and the second fan switch.

10. The cooking apparatus with switchable air ducts according to claim 8, characterized in that, It also includes a PTC heating element, which is disposed in the lower component.

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