Cooking equipment with heat recovery function

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to heat recovery cooking equipment which comprises an upper shell and a lower shell, a reflecting disc and a heating device are arranged in the upper shell, a pot assembly is arranged in the lower shell, an air outlet is formed in the reflecting disc, an air inlet is formed in the pot assembly, and the heating device is arranged in the lower shell. An air return pipe is arranged between the air outlet and the air inlet, and an air outlet communicated with the outside is formed in the air return pipe. Redundant hot air in the pot body assembly flows to the air return pipe through the exhaust outlet, a part of hot air is exhausted through the air outlet, a part of hot air enters the pot body assembly through the air inlet, heat recovery is facilitated, the heat utilization rate is increased, heat loss in the pot body assembly is reduced, cooking energy consumption is reduced, cooking cost is reduced, and the cooking efficiency is improved. And the temperature of the outer side of the upper shell is also reduced, the use is convenient, and scalding is not easy.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and in particular to a heat recovery cooking device. Background Technology

[0002] Existing grilling equipment includes a heating device, which comprises a heating element, a fan blade, and a motor that drives the fan blade to rotate. The heating element generates heat, and the fan blade, driven by the motor, rotates and blows the heat generated by the heating element into the container to heat the food inside. To ensure hot air circulation inside the container, excess heat inside the container is directly discharged to the outside of the equipment, which not only wastes heat but also increases the energy required to cook the food, thus increasing cooking costs. Utility Model Content

[0003] To effectively solve the above problems, this application provides a heat recovery cooking device.

[0004] This application provides a heat recovery cooking device, which adopts the following technical solution:

[0005] A heat recovery cooking device includes an upper shell and a lower shell. A reflector and a heating device are disposed inside the upper shell, and a pot assembly is disposed inside the lower shell. An exhaust port is disposed on the reflector and an air inlet is disposed on the pot assembly. A return air pipe is disposed between the exhaust port and the air inlet, and an air outlet connected to the outside is disposed on the return air pipe.

[0006] By adopting the above technical solution, when the cooking equipment is working, the heating element heats up, and the fan rotates under the drive of the motor, causing the heat generated by the heating element to flow. This allows the hot air to enter the pot assembly under the guidance of the reflector, heating the food inside the pot assembly. The heat at the bottom of the pot assembly flows upward to the reflector under the suction of the fan. Excess hot air inside the pot assembly flows to the return air pipe through the exhaust vent. Some hot air is discharged through the exhaust vent, and some hot air enters the pot assembly through the inlet, facilitating heat recovery, improving heat utilization, reducing heat loss inside the pot assembly, thereby reducing cooking energy consumption and cooking costs. It also lowers the temperature of the outer side of the upper shell, making it convenient to use and less likely to cause burns.

[0007] Optionally, a baffle is provided inside the return air duct and below the air outlet, the baffle dividing the return air duct into an air outlet area and a return air area.

[0008] By adopting the above technical solution, the baffle divides the return air duct into an air outlet area and a return air area. Excess heat inside the pot assembly enters the return air duct through the exhaust port. Under the action of the baffle, part of the hot air enters the air outlet area and is discharged through the exhaust port; part of the hot air enters the return air area and enters the pot assembly through the air inlet to heat the food.

[0009] Optionally, an oil fume filter screen is installed inside the return air duct and in the return air area.

[0010] By adopting the above technical solution, it is possible to easily replace or clean the fume filter, avoid the fumes from adhering to the fume filter and affecting its filtering effect, thereby improving the filtering effect of the fume filter and enhancing the taste of food.

[0011] Optionally, the outer wall of the return air duct is provided with an installation groove, and the oil fume filter screen can be detachably installed in the installation groove.

[0012] Optionally, the fume filter screen is provided with an outwardly extending handheld portion.

[0013] Optionally, the inner diameter of the return air duct outlet is larger than the inner diameter of the middle part of the return air duct.

[0014] Optionally, the outer wall of the return air duct is recessed inward and equipped with an air guide.

[0015] Optionally, the air guide is arranged to gradually tilt inward from top to bottom.

[0016] Optionally, the lower housing is provided with an inner liner, and a vent is provided on the inner liner at a position corresponding to the air inlet, and the vent is connected to the return air duct. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cooking device shown in the embodiments of this application.

[0018] Figure 2 This is another structural schematic diagram of the cooking device shown in the embodiments of this application.

[0019] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Upper shell; 11. Reflector; 111. Exhaust vent; 12. Heating device; 121. Heating element; 122. Fan; 123. Motor; 2. Lower shell; 21. Inner liner; 211. Ventilation opening; 212. Ventilation pipe; 213. Limiting plate; 22. Pot body assembly; 221. Air inlet; 222. Cooking vessel; 3. Return air pipe; 31. Air outlet; 32. Baffle; 33. First connecting pipe; 34. Second connecting pipe; 35. Third connecting pipe; 36. Air guide; 37. Cover plate; 38. Fume filter; 39. Handheld part. Detailed Implementation

[0021] The present application will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific illustrations of the present application, and their purpose is to enable those skilled in the art to better understand the technical solutions of the present application, and should not be regarded as limitations on the present application.

[0022] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0023] This application discloses a heat recovery cooking device, such as... Figure 1 and Figure 2 As shown, the device includes a lower housing 2 and an upper housing 1 covering the lower housing 2. The upper housing 1 contains a reflector 11 and a heating device 12. The heating device 12 includes a heating element 121, a fan 122, and a motor 123 that drives the fan 122 to rotate. The heating element 121 and the fan 122 are both located inside the reflector 11. The lower housing 2 contains a pot assembly 22. The reflector 11 has an exhaust port 111, and the pot assembly 22 has an air inlet 221. A return air pipe 3 is provided between the exhaust port 111 and the air inlet 221. The return air pipe 3 is connected to the upper housing 1 and the lower housing 2 by a locking device. The return air pipe 3 has an air outlet 31 that communicates with the outside.

[0024] The pot assembly 22 includes a pot body and a protective plate located on the front side of the pot body. The protective plate is provided with a handle. The front side of the lower shell 2 is provided with an opening. The pot body is inserted into the lower shell 2 through the opening, and the protective plate covers and seals the opening.

[0025] When the cooking equipment is working, the heating element 121 heats up, and the fan 122 rotates under the drive of the motor 123, causing the heat generated by the heating element 121 to flow. This allows the hot air to enter the pot assembly 22 under the guidance of the reflector 11, heating the food inside the pot assembly 22. The heat at the bottom of the pot assembly 22 flows upward to the reflector 11 under the suction effect of the fan 122. Excess hot air inside the pot assembly 22 flows to the return air pipe 3 through the exhaust port 111. Some of the hot air is discharged through the air outlet 31, and some of the hot air enters the pot assembly 22 through the air inlet 221, which facilitates heat recovery, improves heat utilization, reduces heat loss inside the pot assembly 22, thereby reducing cooking energy consumption and cooking costs. It also lowers the temperature of the outer side of the upper shell 1, making it convenient to use and less likely to cause burns.

[0026] The air outlet 31 is located at the upper part of the return air duct 3. A baffle 32 is installed inside the return air duct 3 and below the air outlet 31. The baffle 32 extends inward from the air outlet 31 and there is a gap between the baffle 32 and the reflector 11. The baffle 32 divides the return air duct 3 into an air outlet area and a return air area. Excess heat inside the pot body assembly 22 enters the return air duct 3 through the exhaust port 111. Under the action of the baffle 32, part of the hot air enters the air outlet area and is discharged through the air outlet 31; part of the hot air enters the return air area and enters the pot body assembly 22 through the air inlet 221 to heat the food.

[0027] It should be noted that the return air duct 3 is U-shaped and includes a horizontally arranged first connecting pipe 33, a vertically arranged second connecting pipe 34, and a horizontally arranged third connecting pipe 35. The first connecting pipe 33, the second connecting pipe 34, and the third connecting pipe 35 are connected and integrally formed. One end of the first connecting pipe 33 is connected to the exhaust port 111 of the reflector plate 11, and the other end passes through the upper housing 1 and connects to the second connecting pipe 34. The second connecting pipe 34 is located outside the upper housing 1 and the lower housing 2. One end of the third connecting pipe 35 is connected to the second connecting pipe 34, and the other end passes through the lower housing 2 and connects to the air inlet 221 of the pot assembly 22.

[0028] The air outlet 31 is located at the end of the first connecting pipe 33 furthest from the reflector 11 and at the upper part of the first connecting pipe 33. A baffle 32 is disposed inside the first connecting pipe 33 and corresponds to the exhaust outlet 111. The baffle 32's position at the upper part of the first connecting pipe 33 ensures that the diameter of the air outlet area within the first connecting pipe 33 is smaller than the diameter of the return air area, facilitating the entry of most hot air into the return air area and further reducing heat loss. In other embodiments, the baffle 32 can also be located in the middle of the first connecting pipe 33, allowing hot air to enter the return air area and the air outlet area evenly.

[0029] Specifically, the inner diameter of the outlet of the return air duct 3 is larger than the inner diameter of the middle section of the return air duct 3, meaning the inner diameter of the outlet of the third connecting pipe 35 is larger than the inner diameter of the second connecting pipe 34. When the hot air in the second connecting pipe 34 reaches the third connecting pipe 35, the air volume in the third connecting pipe 35 increases, thereby improving the efficiency of the airflow and enhancing the heating effect of the hot air on the food. Furthermore, the inner diameter of the middle section of the second connecting pipe 34 is smaller than the inner diameter of the inlet of the second connecting pipe 34. When the hot air reaches the middle section of the second connecting pipe 34 from the inlet, the hot air velocity increases, allowing the hot air to reach the interior of the pot assembly 22 more quickly, increasing the hot air transfer speed and ensuring the temperature of the hot air.

[0030] In this embodiment, a guide vane 36 is recessed inward on the outer wall of the return air duct 3. The guide vane 36 is gradually inclined inward from top to bottom and is located in the middle of the second connecting pipe 34. That is, the inner diameter of the inlet and the inner diameter of the outlet of the second connecting pipe 34 are both larger than the inner diameter of the middle part of the second connecting pipe 34. When hot air reaches the middle part of the second connecting pipe 34 from the inlet, the hot air velocity increases, which facilitates the hot air to reach the pot assembly 22 more quickly, improves the hot air transfer speed, and ensures the temperature of the hot air. When the hot air in the middle part of the second connecting pipe 34 reaches the outlet of the second connecting pipe 34, the air volume at the outlet of the second connecting pipe 34 increases, thereby improving the air outlet efficiency and helping to improve the heating effect of the hot air on the food. Furthermore, the guide vane 36 is gradually inclined inward from top to bottom, which can guide the hot air and reduce the noise of hot air transfer.

[0031] In addition, a cover plate 37 is detachably provided on the second connecting pipe 34. The cover plate 37 is connected to the second connecting pipe 34 by bolts or other locking devices. The cover plate 37 is located on the outer wall of the second connecting pipe 34, and the air guide 36 is located on the cover plate 37, which can help with the cleaning and replacement of the cover plate 37 and the air guide 36.

[0032] An oil fume filter 38 is installed inside the return air duct 3 and located in the return air area. The hot air entering the return air area passes through the oil fume filter 38, which can filter the oil fumes carried in the hot air and prevent the oil fumes in the hot air entering from the air inlet 221 from affecting the taste of the food.

[0033] The outer wall of the return air duct 3 is provided with a mounting groove, and the fume filter 38 is detachably installed in the mounting groove, that is, the fume filter 38 is directly inserted into the mounting groove, which facilitates the replacement or cleaning of the fume filter 38, prevents grease from adhering to the fume filter 38 and affecting the filtration effect of the fume filter 38, thereby improving the filtration effect of the fume filter 38 and improving the taste of food. The fume filter 38 is provided with an outwardly extending handle 39 for easy installation and removal of the fume filter 38.

[0034] It should be noted that the mounting groove is formed by the second connecting pipe 34 and the cover plate 37, which facilitates the installation and removal of the oil fume filter 38.

[0035] Combination Figure 3 The lower shell 2 is provided with an inner liner 21. A vent 211 is provided on the inner liner 21 at a position corresponding to the air inlet 221. The vent 211 is connected to the return air duct 3. A ventilation duct 212 extending outward is provided on the inner liner 21 at a position corresponding to the vent 211. A limiting plate 213 is provided at the ventilation duct 212. The limiting plate 213 is provided along the circumference of the ventilation duct 212. A third connecting pipe 35 is inserted into the ventilation duct 212 and abuts against the limiting plate 213 to facilitate the positioning of the return air duct 3.

[0036] Multiple air inlets 221 are provided and evenly distributed at the positions of the vents 211 on the pot body assembly 22, facilitating the entry of hot air from the return air duct 3 into the pot body assembly 22 through the vents 211 and air inlets 221 to heat the food. In other embodiments, a cooking vessel 222 for placing food is provided inside the pot body assembly 22, and the air inlets 221 are located below the cooking vessel 222. Hot air from the return air duct 3 enters below the cooking vessel 222 through the vents 211 and air inlets 221, which can heat the lower surface of the food and improve the uniformity of heating of the upper and lower surfaces of the food.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat recovery cooking device, comprising an upper shell and a lower shell, wherein a reflector and a heating device are disposed within the upper shell, and a pot assembly is disposed within the lower shell, characterized in that: The reflector is provided with an exhaust port, the pot body assembly is provided with an air inlet, a return air pipe is provided between the exhaust port and the air inlet, and an air outlet connected to the outside is provided on the return air pipe.

2. The heat recovery cooking device according to claim 1, characterized in that: A baffle is installed inside the return air duct and below the air outlet, which divides the return air duct into an air outlet area and a return air area.

3. The heat recovery cooking device according to claim 2, characterized in that: An oil fume filter is installed inside the return air duct and in the return air area.

4. The heat recovery cooking device according to claim 3, characterized in that: The outer wall of the return air duct is provided with an installation groove, and the oil fume filter screen can be detachably installed in the installation groove.

5. A heat recovery cooking device according to claim 4, characterized in that: The oil fume filter screen is provided with an outwardly extending handheld part.

6. A heat recovery cooking device according to claim 1 or 2, characterized in that: The inner diameter of the return air duct outlet is larger than the inner diameter of the middle part of the return air duct.

7. A heat recovery cooking device according to claim 6, characterized in that: The outer wall of the return air duct is recessed inward and equipped with an air guide.

8. A heat recovery cooking device according to claim 7, characterized in that: The air guide is inclined inward from top to bottom.

9. A heat recovery cooking device according to claim 1, characterized in that: The lower shell is provided with an inner liner, and a vent is provided on the inner liner at a position corresponding to the air inlet. The vent is connected to the return air pipe.

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