Cooking device and cooking system

Abstract

The invention discloses a cooking device and a cooking system, and the cooking device comprises a main body part which is internally provided with a combustion cavity; the heat exchanger is arranged in the combustion cavity, and a steam channel is formed in the heat exchanger; a cooking cavity is formed in the cooking box, and the cooking cavity is selectively communicated with the combustion cavity and the steam channel; the cooking device has a first mode and a second mode, the cooking cavity is communicated with the combustion cavity in the first mode, and the cooking cavity is communicated with the steam channel in the second mode. The cooking box is selectively communicated with the combustion cavity or the steam channel so as to be switched between a first mode and a second mode. According to the cooking device provided by the embodiment of the invention, integration of steaming and baking functions of the cooking box is realized, and the steaming and baking requirements of the cooking box are met.

Description

Technical Field

[0001] This application relates to the field of gas systems, and more particularly to a cooking apparatus and cooking system. Background Technology

[0002] In related technologies, integrated cooktops mainly integrate a gas stove, a range hood, and a steam oven. The internal volume of a steam oven in a steam oven is much larger than that of a regular steamer. Due to the influence of power and internal volume, the steam oven can hardly meet the power requirements of the steam generator, resulting in slower heating speed and poorer taste of steamed food. Similarly, the cooking time and cooking effect of baked food are difficult to guarantee. Some products set the steamer and oven separately. Under the condition that the overall power remains unchanged, in order to meet the power requirements of the steamer, oven, and range hood, the actual power of the steamer and oven is smaller than that of a steam oven in a steam oven, resulting in a poor steam and bake cooking experience. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a cooking apparatus that integrates the steaming and baking functions of a cooking oven, thereby meeting the steaming and baking requirements of the cooking oven.

[0004] This application also proposes a cooking system having the above-mentioned cooking apparatus.

[0005] A cooking apparatus according to an embodiment of this application includes: a main body having a combustion chamber formed therein; a heat exchanger disposed within the combustion chamber and having a steam passage formed therein; and a cooking chamber having a cooking cavity formed therein, the cooking cavity being selectively connected to both the combustion chamber and the steam passage; wherein the cooking apparatus has a first mode and a second mode, in the first mode the cooking cavity is connected to the combustion chamber, and in the second mode the cooking cavity is connected to the steam passage, and the cooking chamber is selectively connected to either the combustion chamber or the steam passage to switch between the first mode and the second mode.

[0006] According to an embodiment of this application, the cooking apparatus has a main body and a heat exchanger. A combustion chamber is formed in the main body, and a steam channel is formed in the heat exchanger. The heat exchanger is disposed in the combustion chamber, and the water vapor in the steam channel can exchange heat with the flue gas in the combustion chamber. The cooking chamber can be selectively connected to the combustion chamber or the steam channel to switch between baking mode and steaming mode. By integrating the heat exchanger in the main body, the cooking apparatus satisfies the requirements of steaming and baking in one, thereby improving cooking efficiency and meeting user needs.

[0007] In some embodiments of this application, the cooking device further includes: a diverting valve, the diverting valve having a first valve port and a second valve port and a third valve port respectively selectively connected to the first valve port, the first valve port being connected to the combustion chamber, the second valve port being connected to the cooking chamber, and the third valve port being connected to the exhaust port; wherein the first valve port and the second valve port are connected in a first mode, and the first valve port and the third valve port are connected in a second mode.

[0008] In some embodiments of this application, the cooking apparatus further includes a cooling device disposed on the main body, the cooling device being adapted to be activated in a first mode and to introduce airflow toward the combustion chamber to reduce the temperature of the flue gas in the combustion chamber.

[0009] In some embodiments of this application, the cooling device is configured as a first fan, which has an air outlet communicating with the combustion chamber, and the air outlet is located upstream of the heat exchanger.

[0010] In some embodiments of this application, the heat exchanger includes: a tube body, wherein the steam passage is formed inside the tube body, one end of the tube body is configured as a water inlet and adapted to be connected to a water source, the other end of the tube body is provided with a steam outlet and communicates with the cooking chamber, and the tube body is housed in the combustion chamber; and fins, wherein the fins are configured as a plurality of fins disposed on the outer wall of the tube body, and the plurality of fins are spaced apart in the extending direction of the tube body.

[0011] In some embodiments of this application, the cooking apparatus further includes: a mixing device, wherein a mixing chamber is formed within the mixing device and communicates with the combustion chamber, and the mixing device is provided with a gas inlet and an air inlet communicating with the mixing chamber.

[0012] In some embodiments of this application, the cooking apparatus further includes a second fan, which is disposed in the mixing device and adapted to introduce air into the air inlet.

[0013] In some embodiments of this application, the gas inlet and the air inlet are positioned directly opposite each other.

[0014] In some embodiments of this application, the mixing device includes: a mixing housing, in which a mixing cavity is formed, as well as a gas inlet and an air inlet, and the mixing housing is provided with a connecting end open toward the main body; a connecting end cover, one end of which is disposed in the mixing housing, the connecting end cover closing the connecting end and connecting to the main body, and the connecting end cover forming a communicating channel connecting the mixing cavity and the combustion chamber.

[0015] In some embodiments of this application, the connecting end cap includes: a first cover body that closes the connecting end and has a first communicating hole formed thereon; a second cover body that is connected to the main body and closes the combustion chamber and has a second communicating hole provided thereon; and a connecting pipe that is connected to the first cover body and the second cover body respectively and is connected to the first communicating hole and the second communicating hole respectively, and has the communicating channel formed therein; wherein the first cover body, the second cover body, and the connecting pipe are integrally formed.

[0016] In some embodiments of this application, the cooking device further includes a gas distribution plate disposed in the combustion chamber and downstream of the second cover, wherein a plurality of gas distribution holes are formed on the gas distribution plate.

[0017] In some embodiments of this application, the air distribution plate is formed with a first air distribution area and a second air distribution area spaced apart from each other, the first air distribution area being directly opposite the second connecting hole; wherein the diameter of the air distribution hole located in the first air distribution area is smaller than the diameter of the air distribution hole located in the second air distribution area.

[0018] In some embodiments of this application, the second cover has a flow divider rib formed on the side facing the air distribution plate, and the flow divider rib protrudes in the direction of the air distribution plate.

[0019] In some embodiments of this application, the connecting tube is configured such that its cross-sectional area gradually increases in the direction from the first cover to the second cover.

[0020] The cooking system according to an embodiment of this application is briefly described below.

[0021] The cooking system according to the embodiments of this application includes a gas stove and the cooking device described in the above embodiments. Both the gas stove and the cooking device can be connected to the same gas inlet. Since the cooking system includes the cooking device, the cooking system can connect the cooking chamber to the combustion chamber or the steam channel to switch between baking mode and steaming mode. By integrating the heat exchanger of the cooking device into the main body, the cooking system can achieve integrated baking and steaming, thereby improving cooking efficiency and meeting user needs.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a system diagram of a cooking system according to an embodiment of this application;

[0025] Figure 2 yes Figure 1 A partial structural diagram of a Chinese cooking system;

[0026] Figure 3 yes Figure 2 Internal structure diagram;

[0027] Figure 4 yes Figure 3 A schematic diagram of the central air distribution plate.

[0028] Figure label:

[0029] 10. Cooking equipment;

[0030] 11. Main body; 111. Combustion chamber;

[0031] 12. Heat exchanger; 121. Tube body; 1211. Water inlet; 1212. Steam outlet; 122. Fins;

[0032] 13. Cooking box; 14. Diverting valve; 141. First valve port; 142. Second valve port; 143. Third valve port;

[0033] 15. Cooling device; 151. Air outlet;

[0034] 16. Mixing device; 161. Mixing chamber; 162. Gas inlet; 163. Air inlet;

[0035] 164. Mixing-flow housing; 165. Connecting end cap;

[0036] 1651. First cover; 1652. Second cover; 1653. Connecting pipe; 1654. First connecting hole;

[0037] 1655, Second connecting hole; 166, Diverter rib; 17, Second fan;

[0038] 18. Air distribution plate; 181. First air distribution zone; 182. Second air distribution zone; 183. Air distribution port;

[0039] 191. Water pump; 192. Smoke vent; 193. Ignition needle; 194. Flow equalization plate;

[0040] 20. Cooking system; 21. Gas stove. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] The following is for reference. Figures 1-4 The cooking apparatus 10 according to an embodiment of this application is described. The cooking apparatus 10 includes a main body 11, a heat exchanger 12, and a cooking chamber 13. A combustion chamber 111 is formed in the main body 11. The heat exchanger 12 is disposed in the combustion chamber 111 and a steam passage is formed inside the heat exchanger 12. A cooking chamber is formed in the cooking chamber 13. The cooking chamber is selectively connected to the combustion chamber 111 and the steam passage. The cooking apparatus 10 has a first mode and a second mode. In the first mode, the cooking chamber is connected to the combustion chamber 111. In the second mode, the cooking chamber is connected to the steam passage. The cooking chamber 13 is selectively connected to either the combustion chamber 111 or the steam passage to switch between the first mode and the second mode.

[0043] Currently, integrated cooktops mainly integrate a gas stove, a range hood, and a steam oven. The internal volume of the steam oven in a steam oven is much larger than that of a regular steamer. Due to the influence of power and internal volume, the steam oven can hardly meet the power requirements of the steam generator, resulting in slower heating speed and poorer taste of steamed food. Similarly, the cooking time and cooking effect of baked food are difficult to guarantee. Some products set the steamer and oven separately. Under the condition that the overall power remains unchanged, in order to meet the power requirements of the steamer, oven, and range hood, the actual power of the steamer and oven is smaller than that of the steam oven in a steam oven, resulting in a poor steam and bake cooking experience.

[0044] like Figure 1 and Figure 2 As shown, specifically, the cooking device 10 may include a main body 11, a heat exchanger 12, and a cooking chamber 13. A combustion chamber 111 may be formed inside the main body 11. Fuel can be transported to the combustion chamber 111 through a pipeline and burned to generate heat and flue gas. The fuel may be a gas such as fuel gas. The heat exchanger 12 may be installed inside the combustion chamber 111, and a steam passage may be formed inside the heat exchanger 12. The steam passage can exchange heat with the combustion chamber 111.

[0045] It is understandable that the inlet end of the heat exchanger 12 can be connected to a pipe, and the inside of the pipe can be used to flow liquid, which refers to water. When water enters the steam channel through the inlet end of the heat exchanger 12, the water absorbs heat and evaporates into water vapor and is discharged from the outlet end of the heat exchanger 12. The heat required for water evaporation can be provided by the combustion of fuel in the combustion chamber 111. It can be understood that the heat generated by the combustion of fuel in the combustion chamber 111 exchanges heat with the steam channel, thereby realizing the transfer of heat.

[0046] The cooking chamber 13 may have a cooking cavity inside, which can be used to hold the food to be cooked. The cooking cavity can be selectively connected to one of the combustion chamber 111 and the steam channel. Furthermore, the cooking device 10 has a first mode and a second mode. In the first mode, the cooking cavity can be connected to the combustion chamber 111. At this time, the flue gas generated by the combustion of fuel in the combustion chamber 111 can be guided into the cooking cavity. The high-temperature flue gas can bake the food in the cooking cavity, thereby realizing the baking mode of the cooking chamber 13. In the second mode, the cooking cavity can be connected to the steam channel. At this time, the water in the ventilation channel exchanges heat with the flue gas in the combustion chamber 111, thereby causing the water to evaporate under the influence of high temperature to form water vapor. The water vapor can be guided into the cooking cavity and steam the food inside, thereby realizing the steaming mode of the cooking chamber 13.

[0047] Furthermore, by integrating the heat exchanger 12 into the combustion chamber 111, and by connecting the cooking chamber 13 to the steam channel of the heat exchanger 12 or the combustion chamber 111 to switch between the first mode and the second mode, the cooking chamber 13 achieves integrated steaming and baking. Compared with the prior art, the flue gas generated after the fuel in the combustion chamber 111 of the cooking device 10 is burned can be guided into the cooking chamber 13 to achieve the baking mode. In addition, the flue gas generated after combustion can also exchange heat with the water in the steam channel, causing the water to evaporate and form steam, which is then guided into the cooking chamber 13 to achieve the steaming mode, thereby simultaneously meeting the steaming and baking needs of the cooking chamber 13.

[0048] In short, the cooking device 10 of this application embodiment has a main body 11 and a heat exchanger 12. A combustion chamber 111 is formed in the main body 11, and a steam passage is formed in the heat exchanger 12. The heat exchanger 12 is disposed in the combustion chamber 111, and the water vapor in the steam passage can exchange heat with the flue gas in the combustion chamber 111. The cooking box 13 can be selectively connected to the combustion chamber 111 or the steam passage to switch between baking mode and steaming mode. By integrating the heat exchanger 12 into the main body 11, the cooking device 10 satisfies the requirements of steaming and baking, improves cooking efficiency, and meets the user's needs.

[0049] like Figure 1As shown, in some embodiments of this application, the cooking device 10 may further include a diverting valve 14, which may be provided with a first valve port 141, a second valve port 142, and a third valve port 143. The diverting valve 14 may control the first valve port 141 to be connected to one of the second valve port 142 and the third valve port 143. The first valve port 141 is connected to the combustion chamber 111, the second valve port 142 is connected to the cooking chamber, and the third valve port 143 is connected to the exhaust port 192. In a first mode, the first valve port 141 is connected to the second valve port 142, and in a second mode, the first valve port 141 is connected to the third valve port 143.

[0050] It should be noted that in the first mode, the cooking chamber needs to be connected to the combustion chamber 111 to achieve the baking mode. When the first valve port 141 and the second valve port 142 are connected, the high-temperature flue gas in the combustion chamber 111 can be guided into the cooking chamber through the diverting valve 14 to bake the food in the cooking chamber. In the second mode, the cooking chamber needs to be connected to the steam channel. At this time, the high-temperature flue gas in the combustion chamber 111 exchanges heat with the heat exchanger 12 and is then guided to the exhaust port 192 through the diverting valve 14 to complete the exhaust of the exhaust gas. Therefore, the diverting valve 14 can quickly switch between the first mode and the second mode, avoiding the flue gas still being guided into the cooking chamber in the second mode, which would affect the normal use of the cooking box 13 and ensure the cooking efficiency and reliability of the cooking device 10.

[0051] like Figure 2 As shown, in some embodiments of this application, the cooking device 10 further includes a cooling device 15. The cooling device 15 can be disposed on the main body 11, and the cooling device 15 can be activated in the first mode. After activation, the cooling device 15 can introduce airflow into the combustion chamber 111. The airflow here can be at room temperature or low temperature. After the airflow enters the combustion chamber 111 and mixes with the high temperature flue gas, it can reduce the temperature of the flue gas so that the flue gas can meet the temperature required for baking. It should be noted that the combustion of gas produces high temperature flue gas. However, excessively high temperature flue gas can easily cause problems such as burning or charring of food. The cooling device 15 can reduce the temperature of the flue gas so that it can meet a certain temperature for baking food.

[0052] In other embodiments, the cooking apparatus 10 may also be equipped with a temperature sensor, which can detect the temperature inside the combustion chamber 111 in a timely manner. When the actual temperature of the flue gas is higher than the standard temperature, the cooling device 15 can be controlled to increase its rotation speed, thereby increasing the airflow. When the actual temperature of the flue gas is lower than the standard temperature, the cooling device 15 can be controlled to stop working until the flue gas temperature reaches the standard temperature. The standard temperature mentioned above can be set according to actual needs. In the second mode, since the flue gas needs to exchange heat with the heat exchanger 12, the higher temperature flue gas has a higher heat exchange efficiency, thereby improving the steaming efficiency, and the cooling device 15 does not work.

[0053] In some embodiments of this application, the cooling device 15 can be configured as a first fan. The first fan can adjust its speed, pressure, and flow rate to change the efficiency of air delivery as needed. In other embodiments, when the actual temperature of the flue gas is higher than the standard temperature, the first fan can be controlled to increase its speed or flow rate to increase the amount of airflow introduced, thereby cooling the flue gas in the combustion chamber 111. Further, the first fan can be provided with an air outlet 151, which can communicate with the combustion chamber 111. The airflow absorbed by the first fan can be guided into the combustion chamber 111 through the air outlet 151. The air outlet 151 can be located upstream of the heat exchanger 12, so that it can be directly cooled when the gas has just finished burning and generated high-temperature flue gas. In other embodiments, the air outlet 151 can also be located downstream of the heat exchanger 12 and upstream of the diverting valve 14 to ensure that the flue gas meets the temperature requirements when it is guided into the cooking chamber through the diverting valve 14. The actual arrangement position of the air outlet 151 can be set according to the requirements of the arrangement space, etc.

[0054] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the heat exchanger 12 may include a tube body 121 and fins 122. A steam channel may be formed inside the tube body 121. One end of the tube body 121 may be configured as a water inlet 1211, and the water inlet 1211 may be connected to a water source. The water source may be tap water, distilled water, or water vapor, etc., without limitation. The water referred to in this application may be a water source. The other end of the tube body 121 may be provided with a steam outlet 1212, which may be connected to the cooking cavity. The tube body 121 may be housed in the combustion cavity 111.

[0055] Understandably, in the first mode, no water flows inside the pipe body 121, which is the baking mode of the cooking chamber 13. In the second mode, water can enter the pipe body 121 through the water inlet 1211 and exchange heat with the high-temperature flue gas in the combustion chamber 111. After absorbing heat, the water evaporates into water vapor or a mixture of water and steam. The evaporated water vapor can be directed to the steam outlet and then further directed into the cooking chamber to steam the food. In some embodiments, a water pump 191 can be provided at the water inlet 1211, which can drive water to flow into the pipe body 121.

[0056] Fins 122 can be disposed on the outer wall of the tube body 121, and fins 122 can improve the heat exchange efficiency between water and high-temperature flue gas inside the tube body 121, thereby accelerating the steaming of food, improving the taste of food, and enhancing the user's cooking experience. There can be multiple fins 122, which can be disposed at intervals on the outer wall of the tube body 121, and multiple fins 122 can be disposed in the extending direction of the tube body 121. Using multiple fins 122 can further improve the heat exchange efficiency between water and high-temperature flue gas inside the tube body 121, thus meeting the steaming requirements of the cooking chamber 13.

[0057] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the cooking apparatus 10 further includes a mixing device 16, in which a mixing chamber 161 is formed. The mixing chamber 161 is connected to the combustion chamber 111. The mixing device 16 is also provided with a gas inlet 162 and an air inlet 163, which are connected to the mixing chamber 161. It is understood that the gas inlet 162 can be used to deliver gas, and the air inlet 163 can be used to input air. After the air and gas enter the mixing chamber 161, they can be mixed. In some embodiments, the gas inlet 162 and the air inlet 163 can be arranged facing each other, so that the gas and air can directly contact and mix when passing through the gas inlet 162 and the air inlet 163 respectively, thereby improving the mixing efficiency of gas and air.

[0058] Furthermore, the cooking device 10 also includes a second fan 17, which can be installed at the mixing device 16. The second fan 17 can introduce air into the air inlet 163 and into the mixing chamber 161 to mix with the gas. It should be noted that the gas can be burned after mixing with oxygen in the air. By optimizing the mixing ratio of gas and air, the fullness and efficiency of the combustion process can be ensured. It can be understood that an appropriate mixing ratio of gas and air can maximize the energy released during combustion. Therefore, using the mixing device 16 can improve the combustion efficiency of the gas, thereby improving the cooking efficiency of the cooking device 10.

[0059] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the mixing device 16 may include a mixing housing 164 and a connecting end cap 165. The mixing housing 164 may have a mixing chamber 161, a gas inlet 162, and an air inlet 163. The mixing housing 164 may be provided with a connecting end that opens towards the main body. One end of the connecting end cap 165 may be provided on the mixing housing 164, and the connecting end cap 165 can close the connecting end. Here, the locking closure is that the connecting end cap 165 is connected to the mixing housing 164, ensuring that the gas mixed inside the mixing housing 164 can flow into the combustion chamber 111, and preventing the gas from flowing out from the connection between the connecting end cap 165 and the mixing housing 164. Optionally, the connecting end cap 165 and the mixing housing 164 are detachably connected by screws or bolts, or the connecting end cap 165 and the mixing housing 164 are detachably connected by snap-fit ​​or plug-in, or the connecting end cap 165 and the mixing housing 164 are directly welded to each other through the contact surface.

[0060] In some embodiments, the connecting end cap 165 and the mixing housing 164 can be constructed as an integral structure. The end of the connecting end cap 165 opposite to the connecting end is connected to the main body 11. Optionally, the connecting end cap 165 and the main body 11 are fixed by contact surface welding, or the connecting end cap 165 and the main body 11 are constructed as an integral structure. A connecting channel is formed in the connecting end cap 165. The connecting channel can connect the mixing chamber 161 and the combustion chamber 111. The mixed gas in the mixing chamber 161 can be guided to the combustion chamber 111 through the connecting channel for combustion. The connecting end cap 165 can play the role of gas guiding, ensuring that the gas and air are fully mixed before being guided to the combustion chamber 111, thereby improving combustion efficiency.

[0061] like Figure 2 and Figure 3As shown, in some embodiments of this application, the connecting end cap 165 may include a first cover 1651, a second cover 1652, and a connecting pipe 1653. The first cover 1651 can close the connecting end. Optionally, the first cover 1651 and the mixing shell 164 can be detachably connected by screws or bolts, or the first cover 1651 and the mixing shell 164 can be directly welded together by contact surfaces, or the first cover 1651 and the mixing shell 164 can be constructed as an integral structure. A first connecting pipe can be formed on the first cover 1651. The through hole 1654 allows the second cover 1652 to be connected to the main body 11, and the second cover 1652 can seal the combustion chamber 111. It is understood that the second cover 1652 can be connected to the main body 11 to prevent the mixed gas from leaking from the connection between the second cover 1652 and the main body 11. Similarly, the second cover 1652 and the main body 11 are detachably connected by screws, bolts, or snap-fit ​​or plug-in, or the second cover 1652 and the main body 11 are welded to the contact surface or directly constructed as an integral structure.

[0062] The connecting pipe 1653 can be connected to the first cover 1651 and the second cover 1652 respectively, and the connecting pipe 1653 is connected to the first connecting hole 1654 and the second connecting hole 1655 respectively. A connecting channel can be formed inside the connecting pipe 1653. In a specific embodiment, the first cover 1651, the second cover 1652 and the connecting pipe 1653 can be constructed as an integral molded part. The above structure can further improve the processing efficiency and structural strength of the connecting end cover 165. In some embodiments, the inner diameter of the connecting pipe 1653 is smaller than the inner diameter of the mixing chamber 161, thereby ensuring that the gas and air in the mixing chamber 161 can be fully mixed before being guided to the combustion chamber 111 through the connecting pipe 1653.

[0063] like Figure 3 As shown in some embodiments of this application, the cooking device 10 further includes a gas distribution plate 18, which can be disposed inside the combustion chamber 111 and located downstream of the second cover 1652. Multiple gas distribution holes 183 can be formed on the gas distribution plate 18. A flow equalization plate 194 is also provided on the side of the gas distribution plate 18 away from the second cover 1652, spaced apart from it. A metal mesh is also provided on the side of the flow equalization plate 194 away from the gas distribution plate 18. The mixed gas can be guided through the gas distribution holes 183 to the flow equalization plate 194, and then through the flow equalization plate 194 to the metal mesh. The ignition needle 193 can be connected to the metal mesh, and the ignition needle 193 can ignite the mixed gas as it passes through the metal mesh to form high-temperature flue gas. The use of the gas distribution holes 183 makes the gas flow more uniform, thereby ensuring uniform combustion after ignition and good temperature uniformity during heating.

[0064] like Figure 4 As shown, in some embodiments of this application, a first gas distribution zone 181 and a second gas distribution zone 182 may be formed on the gas distribution plate 18. The first gas distribution zone 181 and the second gas distribution zone 182 are spaced apart from each other, and the first gas distribution zone 181 is directly opposite to the second connecting hole 1655. The diameter of the gas distribution hole 183 located in the first gas distribution zone 181 is smaller than the diameter of the gas distribution hole 183 located in the second gas distribution zone 182. Since the first gas distribution zone 181 and the second connecting hole 1655 are directly opposite each other, the gas flow rate at the first gas distribution zone 181 is greater than the gas flow rate at the second gas distribution zone 182. Therefore, under the condition that the gas flow velocity at the first gas distribution zone 181 is greater than the gas flow velocity at the second gas distribution zone 182, by making the diameter of the gas distribution hole 183 in the first gas distribution zone 181 smaller than the diameter of the gas distribution hole 183 in the second gas distribution zone 182, it can be ensured that the gas flow rate at each part of the gas distribution plate 18 is uniform, so that the flame after the gas is ignited by the flow equalization plate 194 can be evenly distributed on the surface of the metal wire mesh. Furthermore, the inner diameter of the gas distribution hole 183 in the second gas distribution zone 182 in the direction away from the first gas distribution zone 181 gradually decreases, thereby protecting the gas flow at the gas distribution plate 18 to be more uniform.

[0065] like Figure 3 As shown, in some embodiments of this application, a diversion rib 166 is formed on the side of the second cover 1652 facing the gas distribution plate 18. The diversion rib 166 can be protruding towards the gas distribution plate 18. The diversion rib 166 can be non-uniformly arranged. The diversion rib 166 can divert and guide the gas, ensuring that the gas can flow through the space between two adjacent diversion ribs 166 to the corresponding gas distribution hole 183, ensuring that the gas can burn more completely and evenly.

[0066] It should be noted that the non-uniform arrangement of the aforementioned flow divider 166 can be understood as the flow divider 166 being positioned to correspond to the first gas distribution zone 181 and the second gas distribution zone 182. The gas flow velocity is high in the first gas distribution zone 181, therefore the flow divider 166 corresponding to the first gas distribution zone 181 is relatively dispersed, ensuring that the mixed gas can flow from the first gas distribution zone 181 to the second gas distribution zones 182 on both sides. The gas flow velocity is low in the second gas distribution zone 182, therefore the flow divider 166 corresponding to the second gas distribution zone 182 is relatively compact, ensuring that the mixed gas can flow to the gas distribution holes 183 in the second gas distribution zone 182, preventing the gas from flowing back to the first gas distribution zone 181. The arrangement of the flow divider 166 can be configured to correspond to the first gas distribution zone 181 and the second gas distribution zone 182.

[0067] In some embodiments of this application, the connecting pipe 1653 is configured such that the cross-sectional area gradually increases from the first cover 1651 to the second cover 1652. This arrangement is beneficial for the uniform distribution of the concentration field, ensuring a more uniform mixing of the gas and air. Furthermore, the flow velocity of the mixed gas decreases when it passes through the connecting pipe 1653, thereby reducing frictional and energy losses between the mixed gas and the inner wall of the connecting pipe 1653. The connecting pipe 1653 can also reduce noise and vibration when the mixed gas passes through it, thereby improving the stability and reliability of the connecting pipe 1653.

[0068] The cooking system 20 according to an embodiment of this application is briefly described below.

[0069] According to the embodiments of this application, the cooking system 20 is provided with a gas stove 21 and the cooking device 10 of the above embodiments. Both the gas stove 21 and the cooking device 10 can be connected to the same gas inlet. Since the cooking system 20 is provided with the cooking device 10, the cooking system 20 can connect the cooking chamber 13 to the combustion chamber 111 or the steam channel to switch between baking mode and steaming mode. The cooking system 20 integrates the heat exchanger 12 of the cooking device 10 into the main body 11, so that it can meet the requirements of steaming and baking, improve cooking efficiency, and meet the user's needs.

[0070] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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.

[0071] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0072] In the description of this application, "multiple" means two or more.

[0073] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0074] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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 any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking apparatus, characterized in that, include: The main body has a combustion chamber formed therein; A heat exchanger, wherein the heat exchanger is disposed within the combustion chamber and a steam passage is formed inside the heat exchanger; A cooking chamber is provided, which has a cooking cavity that is selectively connected to both the combustion chamber and the steam passage. The cooking device has a first mode and a second mode. In the first mode, the cooking chamber is connected to the combustion chamber, and in the second mode, the cooking chamber is connected to the steam channel. The cooking chamber can be connected to either the combustion chamber or the steam channel to switch between the first mode and the second mode.

2. The cooking apparatus according to claim 1, characterized in that, Also includes: A steering valve is provided with a first valve port and a second valve port and a third valve port respectively selectively connected to the first valve port. The first valve port is connected to the combustion chamber, the second valve port is connected to the cooking chamber, and the third valve port is connected to the exhaust port. The first valve port and the second valve port are connected in the first mode, and the first valve port and the third valve port are connected in the second mode.

3. The cooking apparatus according to claim 2, characterized in that, Also includes: A cooling device is disposed in the main body and is adapted to be activated in a first mode and to introduce airflow into the combustion chamber to reduce the temperature of the flue gas in the combustion chamber.

4. The cooking apparatus according to claim 3, characterized in that, The cooling device is constructed as a first fan, which has an air outlet that communicates with the combustion chamber and is located upstream of the heat exchanger.

5. The cooking apparatus according to claim 1, characterized in that, The heat exchanger includes: The pipe body has a steam channel formed inside it. One end of the pipe body is configured as a water inlet and is adapted to be connected to a water source. The other end of the pipe body is provided with a steam outlet and communicates with the cooking cavity. The pipe body is housed in the combustion cavity. The fins are configured as a plurality of fins disposed on the outer wall of the tube body, and the plurality of fins are spaced apart in the extending direction of the tube body.

6. The cooking apparatus according to claim 2, characterized in that, Also includes: A mixing device, wherein a mixing chamber is formed within the mixing device and communicates with the combustion chamber, and the mixing device is provided with a gas inlet and an air inlet communicating with the mixing chamber.

7. The cooking apparatus according to claim 6, characterized in that, Also includes: A second fan is disposed in the mixing device and is adapted to introduce air into the air inlet.

8. The cooking apparatus according to claim 6, characterized in that, The gas inlet and the air inlet are positioned directly opposite each other.

9. The cooking apparatus according to claim 8, characterized in that, The mixing device includes: A mixing housing, wherein a mixing chamber is formed inside the mixing housing, as well as the gas inlet and the air inlet, and the mixing housing is provided with a connecting end that opens toward the main body; A connecting end cap is provided at one end of the mixing housing, the connecting end cap closes the connecting end and is connected to the main body, and the connecting end cap forms a communication channel that connects the mixing chamber and the combustion chamber.

10. The cooking apparatus according to claim 9, characterized in that, The connecting end cap includes: A first cover, which closes the connecting end, and a first connecting hole is formed on the first cover; The second cover is connected to the main body and seals the combustion chamber, and the second cover is provided with a second connecting hole; A connecting pipe is provided, which is connected to the first cover and the second cover respectively, and is also connected to the first communicating hole and the second communicating hole respectively. A communicating channel is formed within the connecting pipe. The first cover, the second cover, and the connecting pipe are constructed as a single molded part.

11. The cooking apparatus according to claim 10, characterized in that, Also includes: The gas distribution plate is disposed in the combustion chamber and on the downstream side of the second cover, and a plurality of gas distribution holes are formed on the gas distribution plate.

12. The cooking apparatus according to claim 11, characterized in that, The air distribution plate has a first air distribution area and a second air distribution area spaced apart from each other, and the first air distribution area is directly opposite the second connecting hole; in The diameter of the air distribution hole located in the first air distribution zone is smaller than the diameter of the air distribution hole located in the second air distribution zone.

13. The cooking apparatus according to claim 11, characterized in that, The second cover has a flow divider rib on the side facing the air distribution plate, and the flow divider rib protrudes in the direction of the air distribution plate.

14. The cooking apparatus according to claim 10, characterized in that, The connecting pipe is constructed such that its cross-sectional area gradually increases from the first cover to the second cover.

15. A cooking system, characterized in that, Includes a gas stove and a cooking appliance as described in any one of claims 1-14.

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