Heating device and cooking apparatus

Abstract

The utility model discloses a kind of heating device and cooking equipment, it is related to kitchen appliance technical field, the heating device includes: combustion unit, the combustion unit is configured to generate heating airflow using gas heating;Humidification unit, the humidification unit is configured to generate humidification airflow;Mixing unit, the mixing unit connects the combustion unit and the humidification unit, the mixing unit is used to receive the heating airflow and / or the humidification airflow, and for output the heating airflow or the mixed airflow of the heating airflow and the humidification airflow. According to the heating device of the utility model embodiment, by setting mixing unit receives heating airflow and humidification airflow, to make heating airflow and humidification airflow contact heat exchange, and quickly generate the mixed airflow of higher temperature, improve the heating efficiency of heating device.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a heating device and cooking equipment. Background Technology

[0002] In related technologies, cooking equipment such as steam ovens mainly use electric heating tubes to heat and evaporate water to generate steam. This method relies on the electric heating tubes to gradually increase the temperature, and the preheating time is relatively long. The energy conversion efficiency of electric heating tubes is only 60-70%, and the heating efficiency of electric heating tubes is low, making it difficult to meet the needs of rapid cooking. Utility Model Content

[0003] One objective of this invention is to provide a heating device and cooking equipment that, by setting up a mixing unit to receive heating airflow and humidifying airflow, allows the heating airflow and humidifying airflow to come into contact and exchange heat, and quickly generates a high-temperature mixed airflow, thereby improving the heating efficiency of the heating device.

[0004] The heating device according to an embodiment of the present invention includes: a combustion unit, a humidification unit, and a mixing unit. The combustion unit is configured to generate a heated airflow by heating with natural gas. The humidification unit is configured to generate a humidified airflow. The mixing unit connects the combustion unit and the humidification unit. The mixing unit is used to receive the heated airflow and / or the humidified airflow, and to output the heated airflow or a mixture of the heated airflow and the humidified airflow.

[0005] According to the present invention, the heating device receives heating airflow and humidifying airflow by setting a mixing unit, so that the heating airflow and humidifying airflow come into contact for heat exchange and quickly generate a mixed airflow with a higher temperature, thereby improving the heating efficiency of the heating device.

[0006] In addition, the heating device according to the above embodiments of the present invention may also have the following additional technical features: In some embodiments, the combustion unit and the humidification unit are connected to opposite sides of the mixing unit.

[0007] In some embodiments, the combustion unit and the humidification unit are connected to the same side or adjacent side of the mixing unit.

[0008] In some embodiments, the directions in which the combustion unit introduces air into the mixing unit and the directions in which the humidification unit introduces air into the mixing unit are opposite, parallel, coincident, or at an angle to each other.

[0009] In some embodiments, the combustion unit includes: a first housing, a burner, an igniter, and a first fan; the burner is disposed in the first housing and is used to generate a heated gas flow by burning gas; the igniter is used to ignite the gas ejected from the burner; and the first fan is used to drive the heated gas flow into the mixing unit.

[0010] In some embodiments, the igniter is configured to ignite intermittently to control the output flue gas temperature of the combustion unit.

[0011] In some embodiments, the humidification unit includes: a second housing, an atomizer, and a second fan. The second housing has an atomization chamber that communicates with the mixing unit. The atomizer is located in the atomization chamber and is used to atomize water to generate a humidifying airflow. The second fan is used to drive the humidifying airflow into the mixing unit.

[0012] In some embodiments, the humidification unit is configured to control the vibration frequency of the atomizer according to humidity requirements.

[0013] In some embodiments, the number of atomizers is multiple, and the humidification unit is configured to control the number of atomizers in operation according to humidity requirements.

[0014] In some embodiments, the humidification unit further includes a water level monitoring device for monitoring the water level in the atomizing chamber, wherein the highest water level in the atomizing chamber is greater than or equal to 5 mm relative to the height of the atomizer.

[0015] In some embodiments, the humidification unit further includes a water supply pipe that connects to the atomizing chamber and is used to supply water to the atomizing chamber.

[0016] In some embodiments, the mixing unit includes: a third housing including a mixing chamber, the combustion unit being able to supply a heating gas flow into the mixing chamber, the humidification unit being able to supply a humidifying gas flow into the mixing chamber, and the third housing having an outlet, wherein the outlet is located at the lower part of the mixing chamber.

[0017] In some embodiments, the mixing unit further includes sensors for monitoring the temperature and / or humidity of the outlet.

[0018] In some embodiments, the third housing further includes a first flow channel disposed between the mixing chamber and the combustion unit and a second flow channel disposed between the mixing chamber and the humidification unit, wherein the first flow channel is configured to gradually expand from the combustion unit to the mixing chamber.

[0019] In some embodiments, the second flow channel is configured to gradually expand from the humidification unit to the mixing chamber.

[0020] In some embodiments, the flow area of ​​the first flow channel is larger than the flow area of ​​the second flow channel.

[0021] The cooking device according to an embodiment of the present invention includes: a device body, the device body including a cooking cavity; the aforementioned heating device disposed in the device body, and the mixing unit communicating with the cooking cavity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the heating device in an embodiment of the present invention.

[0023] Figure 2 This is another structural schematic diagram of the heating device in an embodiment of this utility model.

[0024] Figure 3 This is a partially enlarged schematic diagram of the heating device in an embodiment of this utility model.

[0025] Figure 4 This is a cross-sectional schematic diagram of the heating device in an embodiment of this utility model.

[0026] Figure 5 This is another structural schematic diagram of the heating device in this utility model embodiment.

[0027] Figure label: Heating device 100, combustion unit 10, air inlet 101, premixing chamber 102, first housing 11, burner 12, igniter 13, first fan 14, nozzle 15, nozzle seat 16, humidification unit 20, second housing 21, atomizing chamber 211, atomizer 22, second fan 23, water storage tank 24, water level monitoring device 25, water supply pipeline 26, mixing unit 30, third housing 31, mixing chamber 311, temperature sensor 32, humidity sensor 33, outlet 34, first flow channel 35, second flow channel 36, airflow inlet 361. Detailed Implementation

[0028] The embodiments of this utility model 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] Combination Figures 1 to 5The heating device 100 according to an embodiment of the present invention includes: a combustion unit 10, a humidification unit 20, and a mixing unit 30. The combustion unit 10 is configured to generate a heated airflow using fuel gas; the humidification unit 20 is configured to generate a humidified airflow; the mixing unit 30 is connected to the combustion unit 10 and the humidification unit 20. The mixing unit 30 is used to receive the heated airflow and / or the humidified airflow, and to output the heated airflow or a mixed airflow of the heated airflow and the humidified airflow. That is, the mixing unit 30 can be used to receive the heated airflow, the humidified airflow, the heated airflow and the humidified airflow, and can output the heated airflow, or the mixed airflow of the heated airflow and the humidified airflow. The heated airflow and the humidified airflow can contact and exchange heat within the mixing unit 30 to quickly generate a mixed airflow, which is then output to the space requiring heating, achieving a rapid response of the heating device 100 and improving its heating effect.

[0030] For example, when the combustion unit 10 operates alone and the humidification unit 20 is not activated, the combustion unit 10 generates a heated airflow by burning gas. The mixing unit 30 can be used to receive and output the heated airflow, which can flow through the mixing unit 30 and be output to the space that needs to be heated, thus enabling the combustion unit 10 to heat independently. When the combustion unit 10 and the humidification unit 20 operate simultaneously, the humidification unit 20 can convert the fluid in the heating unit into a humidified airflow through pressurization, vibration, etc. The combustion unit 10 generates a heated airflow by burning gas. The humidified airflow and the heated airflow can be input into the mixing unit 30 for contact heat exchange. The heat in the heated airflow can be transferred to the humidified airflow. After absorbing heat, the humidified airflow evaporates and quickly generates a high-temperature mixed airflow. The mixing unit 30 can be used to output the mixed airflow, which is output from the mixing unit 30 to the space that needs to be heated, thereby improving the heating efficiency of the heating device 100.

[0031] When the combustion unit 10 is running and the humidification unit 20 is not running, the heating device 100 can generate a dry heated airflow. When the combustion unit 10 and the humidification unit 20 are running simultaneously, the heated airflow and the humidified airflow can contact and exchange heat in the mixing unit 30 and quickly generate a mixed airflow. The heating device 100 can generate a mixed airflow with a certain humidity. When the combustion unit 10 generates a large amount of heated airflow, the heated airflow and the mixed airflow can be introduced into the space that needs to be heated through the mixing unit 30, so that the heating device 100 can generate heated airflow or mixed airflow according to the user's needs, thereby improving the user's experience.

[0032] According to the embodiment of the present invention, the heating device 100 receives heating airflow and humidifying airflow by setting a mixing unit 30, so that the heating airflow and humidifying airflow come into contact for heat exchange and quickly generate a mixed airflow with a higher temperature, thereby improving the heating efficiency of the heating device 100.

[0033] Optionally, the humidification unit 20 can atomize water to generate a humidifying airflow, which may contain water droplets. The combustion unit 10 generates a heating airflow by burning fuel gas, which may contain flue gas. The mixing unit 30 can receive multiple water droplets and flue gas, which directly contact and exchange heat within the mixing unit 30. This causes the water droplets to evaporate rapidly and generate a high-temperature mixed airflow, which may contain steam. The mixing unit 30 can output high-temperature steam to the space requiring heating, thereby achieving the heating purpose of the heating device 100. Compared to using electric heating to generate high-temperature steam, the heating device 100 of this embodiment can generate steam quickly without preheating. The combustion unit 10 can generate a large amount of high-temperature flue gas in a short time to contact and exchange heat with multiple water droplets, improving the working efficiency of the heating device 100 in generating high-temperature steam.

[0034] According to the heating device 100 in the embodiment of the present invention, the mixing unit 30 is connected to the combustion unit 10 and the humidification unit 20, wherein the relative positions of the combustion unit 10 and the humidification unit 20 include, but are not limited to, the following embodiments.

[0035] Implementation method one, combined with Figure 1 , Figure 4 and Figure 5 In some embodiments, the combustion unit 10 and the humidification unit 20 are connected to opposite sides of the mixing unit 30. The combustion unit 10 may be located on the left or right side of the mixing unit 30, and the humidification unit 20 may be located on the right or left side of the mixing unit 30 accordingly. Alternatively, the combustion unit 10 may be located on the upper or lower side of the mixing unit 30, and the humidification unit 20 may be located on the lower or upper side of the mixing unit 30 accordingly. Alternatively, the combustion unit 10 may be located on the front or rear side of the mixing unit 30, and the humidification unit 20 may be located on the rear or front side of the mixing unit 30 accordingly, so that the humidifying airflow and the heating airflow can be input into the mixing unit 30 in opposite directions to improve the mixing effect of the humidifying airflow and the heating airflow.

[0036] For example, the humidification unit 20 can be located on the right side of the mixing unit 30, and the combustion unit 10 can be located on the left side of the mixing unit 30. The humidifying airflow can be input into the mixing unit 30 from right to left, and the heating airflow can be input into the mixing unit 30 from left to right, so that the humidifying airflow and the heating airflow collide and exchange heat in the mixing unit 30. The humidifying airflow and the heating airflow can form turbulence in the mixing unit 30, increasing the contact area between the humidifying airflow and the heating airflow. Moreover, the humidifying airflow and the heating airflow can mix quickly and generate a mixed airflow to improve the mixing efficiency of the humidifying airflow and the heating airflow, thereby enhancing the heat exchange effect of the humidifying airflow and the heating airflow.

[0037] In some embodiments, the combustion unit 10 and the humidification unit 20 are connected to the same side of the mixing unit 30. That is, the combustion unit 10 and the humidification unit 20 can be located together on the left, right, upper, lower, front or rear side of the mixing unit 30, increasing the contact area between the heating airflow and the humidification airflow, thereby improving the heating efficiency of the heating device 100 and improving the compactness of the heating device 100.

[0038] For example, the combustion unit 10 and the humidification unit 20 can both be located on the left side of the mixing unit 30. The humidifying and heating airflows can be input into the mixing unit 30 from left to right, allowing for contact heat exchange within the mixing unit 30. Inputting the humidifying and heating airflows in the same direction reduces the likelihood of the mixed and heating airflows flowing back to the combustion unit 10 and humidification unit 20, while also reducing energy loss and ensuring the mixed airflow is output to the space requiring heating, thus improving the heating efficiency of the heating device 100. Furthermore, connecting the combustion unit 10 and the humidification unit 20 to the same side of the mixing unit 30 reduces the width of the heating device 100 in the left-right direction, improving its integration.

[0039] In some embodiments, the combustion unit 10 and the humidification unit 20 are connected to adjacent sides of the mixing unit 30. That is, the combustion unit 10 and the humidification unit 20 can be located on the left and upper sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located on the left and lower sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located on the right and upper sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located on the right and lower sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located on... The combustion unit 10 and the humidification unit 20 can be located at the front and upper sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located at the front and lower sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located at the right and upper sides of the mixing unit 30, respectively; or, the combustion unit 10 and the humidification unit 20 can be located at the right and lower sides of the mixing unit 30, etc., so that the heating airflow and the humidification airflow form a countercurrent in the mixing unit 30, increasing the contact area between the heating airflow and the humidification airflow, thereby improving the heating efficiency of the heating device 100 and improving the compactness of the heating device 100.

[0040] For example, the combustion unit 10 and the humidification unit 20 can be located on the left and upper sides of the mixing unit 30, respectively. That is, the combustion unit 10 can be located on the left side of the mixing unit 30, and the humidification unit 20 can be located on the upper side of the mixing unit 30. The heating airflow can be input into the mixing unit 30 from left to right, and the humidification airflow can be input into the mixing unit 30 from top to bottom. This allows the humidification and heating airflows to collide and exchange heat within the mixing unit 30. Turbulence can be formed within the mixing unit 30, increasing the contact area between the humidification and heating airflows. Furthermore, the humidification and heating airflows can mix rapidly to generate a mixed airflow, improving the mixing efficiency and thus enhancing the heat exchange effect. Simultaneously, the location of the combustion unit 10 on the left side of the mixing unit 30 and the humidification unit 20 on the upper side reduces the width of the heating device 100 in the left-right direction, improving the integration of the heating device 100. Of course, the humidification unit 20 can also be located to the left of the mixing unit 30, and the combustion unit 10 can also be located above the mixing unit 30.

[0041] The above description only describes some embodiments of the present invention. The present invention is mainly described with the combustion unit 10 and the humidification unit 20 connected to opposite sides of the mixing unit 30, but this is not a limitation on the scope of protection of the present invention.

[0042] In some embodiments, the directions in which the combustion unit 10 introduces air into the mixing unit 30 and the directions in which the humidification unit 20 introduces air into the mixing unit 30 are opposite, parallel, coincident, or at an angle. That is, the directions in which the combustion unit 10 introduces air into the mixing unit 30 and the directions in which the humidification unit 20 introduces air into the mixing unit 30 can be opposite; or, the directions in which the combustion unit 10 introduces air into the mixing unit 30 and the directions in which the humidification unit 20 introduces air into the mixing unit 30 can be parallel; or, the directions in which the combustion unit 10 introduces air into the mixing unit 30 and the directions in which the humidification unit 20 introduces air into the mixing unit 30 can coincide; or, the directions in which the combustion unit 10 introduces air into the mixing unit 30 and the directions in which the humidification unit 20 introduces air into the mixing unit 30 can be at an angle, so that the heating airflow and the humidifying airflow counteract each other in the mixing unit 30, thereby increasing the mixing rate of the heating airflow and the humidifying airflow in the mixing unit 30, and thus improving the heating efficiency of the heating device 100.

[0043] For example, combined Figure 1 , Figure 4 and Figure 5 The directions of air intake from combustion unit 10 to mixing unit 30 and from humidification unit 20 to mixing unit 30 can be opposite. For example, humidification unit 20 can be located on the right side of mixing unit 30, and combustion unit 10 can be located on the left side of mixing unit 30. Humidifying airflow can be input into mixing unit 30 from right to left, and heating airflow can be input into mixing unit 30 from left to right, so that humidifying airflow and heating airflow collide and contact for heat exchange in mixing unit 30. Humidifying airflow and heating airflow can form turbulence in mixing unit 30, increasing the contact area between humidifying airflow and heating airflow. Moreover, humidifying airflow and heating airflow can mix quickly and generate mixed airflow to improve the mixing efficiency of humidifying airflow and heating airflow, thereby enhancing the heat exchange effect of humidifying airflow and heating airflow.

[0044] Optionally, the directions of air intake from the combustion unit 10 to the mixing unit 30 and the directions of air intake from the humidification unit 20 to the mixing unit 30 can be parallel to each other. For example, the combustion unit 10 and the mixing unit 30 can be located on the same side of the mixing unit 30, and the flow directions of the humidification airflow and the heating airflow can be parallel to each other and input into the mixing unit 30. This can reduce the probability of the mixed airflow and heating airflow in the mixing unit 30 flowing back to the combustion unit 10 and the humidification unit 20, while reducing the energy loss of the mixed airflow, ensuring that the mixed airflow is output to the space that needs to be heated, and improving the heating efficiency of the heating device 100. At the same time, connecting the combustion unit 10 and the humidification unit 20 to the same side of the mixing unit 30 can reduce the width dimension of the heating device 100 in the left-right direction and improve the integration of the heating device 100.

[0045] Optionally, the direction of air intake from combustion unit 10 to mixing unit 30 and the direction of air intake from humidification unit 20 to mixing unit 30 can overlap. For example, heating airflow and humidification airflow can enter mixing unit 30 through the same flow channel. Before entering mixing unit 30, heating airflow and humidification airflow can be initially mixed in the flow channel. After entering mixing unit 30, heating airflow and humidification airflow can be fully mixed to improve the mixing efficiency of heating airflow and humidification airflow and improve the heating effect of heating device 100.

[0046] Optionally, the direction of air intake from combustion unit 10 to mixing unit 30 and the direction of air intake from humidification unit 20 to mixing unit 30 can have an angle. For example, the directions of air intake from combustion unit 10 to mixing unit 30 and from humidification unit 20 to mixing unit 30 can form angles of 30°, 45°, 60°, and 90°. That is, the flow direction of heating airflow and the flow direction of humidification airflow can have an angle, so that the humidification airflow and heating airflow collide and contact for heat exchange in mixing unit 30. The humidification airflow and heating airflow can form turbulence in mixing unit 30, increasing the contact area between the humidification airflow and heating airflow. Moreover, the humidification airflow and heating airflow can mix quickly and generate mixed airflow to improve the mixing efficiency of humidification airflow and heating airflow, thereby enhancing the heat exchange effect of humidification airflow and heating airflow.

[0047] Combination Figures 3 to 5 In some embodiments, the combustion unit 10 includes: a first housing 11, a burner 12, an igniter 13, and a first fan 14. The burner 12 is disposed in the first housing 11 and is used to generate a heated gas flow by burning gas. The igniter 13 is used to ignite the gas ejected from the burner 12. The first fan 14 is used to drive the heated gas flow into the mixing unit 30. Under the action of the first fan 14, external air can quickly enter into the first housing 11 and can be premixed with the gas in the burner 12 to improve the combustion efficiency of the burner 12 and reduce the emissions of nitrogen oxides and carbon monoxide. After the igniter 13 is successfully ignited, it generates a heated gas flow. Driven by the first fan 14, the heated gas flow enters the mixing unit 30 for mixing to accelerate the flow rate of the heated gas flow into the mixing unit 30.

[0048] For example, when the combustion unit 10 operates alone and the humidification unit 20 is not activated, the igniter 13 ignites the gas sprayed from the burner 12, causing the gas to burn continuously and generate a heated gas flow. The ignition component does not need to be ignited multiple times. The mixing unit 30 can be used to receive and output the heated gas flow. The first fan 14 draws in external air and forms a driving airflow, which is used to drive the heated gas flow into the mixing unit 30. The heated gas flow can flow through the mixing unit 30 and be continuously output to the space that needs to be heated, so that the temperature of the space that needs to be heated increases, and the combustion unit 10 can heat the space alone.

[0049] Optionally, the first fan 14 can be a variable frequency fan. The variable frequency fan can control the air volume by adjusting the motor speed, which avoids the ineffective energy consumption of traditional fans when running at a fixed speed. It can also avoid the high current surge when traditional fans start up, thereby reducing the wear of the motor and related components and extending the service life of the equipment. At the same time, the variable frequency fan generates relatively low noise when running at low speed, which helps to improve the working environment.

[0050] In some embodiments, the first housing 11 is provided with an air inlet 101, a gas inlet, and a premixing chamber 102. The premixing chamber 102 is connected to the air inlet 101 and the gas inlet, so that air and gas are premixed in the premixing chamber 102. The air inlet of the burner 12 is connected to the premixing chamber 102, and the premixed mixture can enter the burner 12 through the air inlet and be burned. The air outlet of the first fan 14 can be connected to the air inlet 101. Under the action of the first fan 14, external air can flow into the combustion unit 10 from the air outlet of the first fan 14 and the air inlet 101. The first fan 14 can provide forced air supply to the combustion unit 10, avoid incomplete combustion in the burner 12, and thus enhance the combustion efficiency of the burner 12.

[0051] Optionally, a flow equalization plate can be provided above the air inlet 101, so that external air can flow through the flow equalization plate and then into the premixing chamber 102, making the airflow more stable and reducing the unevenness of airflow distribution.

[0052] In some embodiments, the gas inlet is provided with a nozzle 15 and a nozzle seat 16. The nozzle 15 is located at one end of the nozzle seat 16 near the burner 12, and at least a portion of the nozzle 15 is located within the premixing chamber 102. The nozzle 15 is used to supply gas to the premixing chamber 102, allowing the gas to mix with air within the premixing chamber 102. The nozzle seat 16 has a gas flow channel, and the flow area of ​​the nozzle 15 is smaller than the flow area of ​​the gas flow channel. Gas can flow from the gas flow channel to the nozzle 15, and the gas velocity at the nozzle 15 is greater than the gas velocity within the gas channel, allowing the gas to be input into the premixing chamber 102 at a faster speed. Due to the faster gas velocity and lower gas pressure, more air is drawn into the premixing chamber 102, further enhancing the premixing degree of air and gas.

[0053] Optionally, the nozzle 15 can precisely control the flow rate of the gas according to the type and pressure of the gas, thereby ensuring that the heat load of the burner 12 meets the requirements. This precise control is crucial for improving combustion efficiency and reducing energy waste. At the same time, the nozzle 15 can ensure the completeness of the combustion process by mixing the gas with air in a certain proportion. This mixing not only improves combustion efficiency but also reduces the emission of harmful gases.

[0054] In some embodiments, the igniter 13 is configured for intermittent ignition to control the output flue gas temperature of the combustion unit 10. When the temperature inside the mixing unit 30 is lower than a set temperature, the burner 12 can introduce combustion gas, and the igniter 13 can ignite the combustion gas to generate high-temperature flue gas, which is then introduced into the mixing unit 30 to increase the temperature inside the mixing unit 30. When the temperature inside the mixing unit 30 reaches the set temperature, the burner 12 and the igniter 13 can stop operating. By intermittently igniting the igniter 13, the temperature inside the mixing unit 30 is ensured to remain within a certain temperature range, improving the mixing efficiency of the heating gas flow and the mixing gas flow.

[0055] For example, when the mixing unit 30 needs to output a mixed airflow to the heated space, the humidifying unit 20 can be fully turned on, the burner 12 can be supplied with gas, and the igniter 13 can ignite the gas and generate high-temperature flue gas, which is then introduced into the mixing unit 30 to increase the temperature inside the mixing unit 30. The humidifying airflow can be water droplets, and the mixed airflow can be steam. After the high-temperature flue gas and water droplets come into contact and exchange heat inside the mixing unit 30, steam can be generated. A small amount of flue gas and a large amount of steam are simultaneously supplied to the space that needs to be heated to enhance the heating effect of the heating device 100. When the temperature inside the mixing unit 30 reaches a certain level, the burner 12 can be stopped, and the high-temperature flue gas remaining in the mixing unit 30 can be mixed with the humidifying airflow to save energy consumption. When the temperature inside the mixing unit 30 is lower than the set temperature, the igniter 13 can re-ignite the burner 12, and the burner 12 restarts, providing sufficient high-temperature flue gas to the mixing unit 30 to ensure that the temperature inside the mixing unit 30 is higher than the set temperature, so that the humidifying airflow can absorb the heat of the high-temperature flue gas and convert it into a mixed airflow.

[0056] Combination Figure 2 , Figure 4 and Figure 5 In some embodiments, the humidification unit 20 includes: a second housing 21, an atomizer 22, and a second fan 23. The second housing 21 is provided with an atomization chamber 211, which is connected to the mixing unit 30. The atomizer 22 is disposed in the atomization chamber 211 and is used to atomize water to generate a humidifying airflow. The second fan 23 is used to drive the humidifying airflow into the mixing unit 30. The atomization chamber 211 may contain a certain water source. The atomizer 22 can atomize the water source in the atomization chamber 211 to generate a humidifying airflow. The second fan 23 can draw in external air and form a driving airflow. Under the drive of the second fan 23, the humidifying airflow can be quickly introduced into the mixing unit 30 and contact the heating airflow for heat exchange, so as to improve the mixing rate of the heating airflow and the humidifying airflow, thereby enhancing the heating effect of the heating device 100.

[0057] For example, the atomizing chamber 211 can be located inside the second housing 21, and the atomizer 22 can be located inside the atomizing chamber 211. This prevents the humidifying airflow generated by the atomized water from the atomizer 22 from leaking to the outside, reducing the flow loss of the humidifying airflow. The principle of liquid water atomization refers to the process of breaking liquid water into tiny droplets or mist droplets through a certain method. Its core lies in using external force to overcome the surface tension and viscosity of liquid water, causing the liquid water to form tiny droplets in a gaseous environment, thereby achieving the atomization effect. After the water source in the atomizing chamber 211 is atomized by the atomizer 22, it can generate a humidifying airflow containing water droplets. The second fan 23 can draw in external air at high speed and form a driving airflow. Driven by the second fan 23, the driving airflow can quickly input the humidifying airflow from the atomizing chamber 211 into the mixing unit 30, where it contacts and exchanges heat with the heating airflow to improve the mixing rate of the heating and humidifying airflow.

[0058] Optionally, water sources can be atomized using methods such as pressure atomization, rotary atomization, gas atomization, and ultrasonic atomization. In this embodiment, the atomizer 22 employs the principle of ultrasonic atomization, using high-frequency vibration of piezoelectric ceramics to break the surface tension of the liquid, forming tiny water droplets. The ultrasonic generator converts electrical energy into acoustic energy, which is transmitted to the liquid through a transducer, causing a "splashing" effect and forming mist-like water droplets. However, this is not a limitation on the scope of protection of this embodiment.

[0059] Optionally, the second fan 23 can be a variable frequency fan. The variable frequency fan can control the air volume by adjusting the motor speed, which avoids the ineffective energy consumption of traditional fans when running at a fixed speed. It can also avoid the high current surge when traditional fans start up, thereby reducing the wear of the motor and related components and extending the service life of the equipment. At the same time, the variable frequency fan generates relatively low noise when running at low speed, which helps to improve the working environment.

[0060] In some embodiments, the humidification unit 20 is configured to control the vibration frequency of the atomizer 22 according to the humidity requirement, thereby adjusting the amount of atomization so that the humidification unit 20 inputs sufficient humidifying airflow to the mixing unit 30 to ensure that the humidity in the mixing unit 30 meets the user's humidity requirements.

[0061] For example, when the humidity requirement within the mixing unit 30 is high, the vibration frequency of the atomizer 22 can be increased to increase the atomization volume, allowing the atomizer 22 to generate more humidifying airflow. The second fan 23 can then drive the humidifying airflow to be quickly input into the mixing unit 30, thereby increasing the humidity within the mixing unit 30. Conversely, when the humidity requirement within the mixing unit 30 is low, the vibration frequency of the atomizer 22 can be decreased to reduce the atomization volume, reducing the flow rate of the humidifying airflow generated by the atomizer 22, thus lowering the humidity within the mixing unit 30. By controlling the vibration frequency of the atomizer 22, the humidity within the mixing unit 30 is maintained at the user's desired level, thereby improving the user experience.

[0062] Combination Figure 2 , Figure 4 and Figure 5 In some embodiments, the number of atomizers 22 is multiple, including two, three, four, or even more. The humidification unit 20 is configured to control the number of atomizers 22 in operation according to humidity requirements, thereby adjusting the flow rate of the humidifying airflow generated by the humidification unit 20 so that the humidification unit 20 inputs sufficient humidifying airflow to the mixing unit 30, ensuring that the humidity in the mixing unit 30 meets the humidity requirements of the user.

[0063] For example, the humidification unit 20 may include two atomizers 22, which can be distributed on the bottom wall of the atomization chamber 211. When the humidity demand in the mixing unit 30 is high, both atomizers 22 can be turned on simultaneously to generate more humidifying airflow, thereby increasing the airflow rate. The second fan 23 can drive the humidifying airflow to be quickly input into the mixing unit 30 to increase the humidity within the mixing unit 30. When the humidity demand in the mixing unit 30 is low, only one of the two atomizers 22 can be turned on to reduce the airflow rate and decrease the humidity within the mixing unit 30. By controlling the number of atomizers 22 in operation, the humidity within the mixing unit 30 is maintained at the user's desired level, thereby improving the user experience.

[0064] In some embodiments, the humidification unit 20 further includes a water level monitoring element 25, which is used to monitor the water level in the atomizing chamber 211. The highest water level in the atomizing chamber 211 is greater than or equal to 5 mm relative to the height of the atomizer 22, ensuring that the piezoelectric ceramic vibrating plate in the atomizer 22 is in the best working condition, thereby improving the working efficiency of the atomizer 22.

[0065] In some embodiments, the humidification unit 20 further includes a water supply pipe 26, which connects to the atomizing chamber 211 and is used to supply water to the atomizing chamber 211 to ensure that there is sufficient water in the atomizing chamber 211 so that the atomizer 22 can atomize and generate sufficient humidifying airflow. The connection method of the water supply pipe 26 in the heating device 100 according to the embodiments of the present invention includes, but is not limited to, the following embodiments.

[0066] Example 1, combined with Figure 1 , Figure 4 and Figure 5 The humidification unit 20 also includes a water storage tank 24, which is used to store a certain amount of water. The water storage tank 24 is connected to the second housing 21 through a water supply pipe 26 to ensure that there is sufficient water in the atomizing chamber 211 so that the atomizer 22 can atomize and maintain the normal operation of the humidification unit 20.

[0067] Optionally, the water tank 24 can be detachable. When the water in the water tank 24 is insufficient, the user can remove the water tank 24 and add water to it to ensure that the water tank 24 can replenish the atomizing water tank in a timely manner and ensure the normal operation of the atomizer 22.

[0068] Optionally, the water tank 24 can be located above the second housing 21. Under the action of gravity, the water in the water tank 24 can be input into the atomizing chamber 211 of the second housing 21 through the water supply pipe 26, ensuring that the atomizer 22 in the atomizing chamber 211 has enough water for atomization.

[0069] In the second embodiment, the water supply pipe 26 is connected to an external water source connector. That is, the water supply pipe 26 can be directly connected to an external water source. The external water source output from the water source connector can replenish the water source to the atomizing chamber 211 through the water supply pipe 26, ensuring that there is sufficient water in the atomizing chamber 211 so that the atomizer 22 can atomize and maintain the normal operation of the humidification unit 20.

[0070] In embodiment three, the humidification unit 20 also includes a water storage tank 24 and a water pump. The water storage tank 24 is used to store a certain amount of water. When the water consumption is large, the water pump can increase the water pressure to reduce the volume of the water storage tank 24. The water storage tank 24 can be connected to the second housing 21 through the water supply pipe 26. The water pump can pump the water in the water storage tank 24 into the second housing 21 to ensure that there is sufficient water in the atomizing chamber 211 so that the atomizer 22 can atomize and maintain the normal operation of the humidification unit 20.

[0071] The above description only describes some embodiments of the present invention. The present invention is mainly described with the humidification unit 20 including a water storage tank 24, and the water storage tank 24 being connected to the second housing 21 through a water supply pipe 26. However, this is not a limitation on the scope of protection of the present invention.

[0072] Combination Figure 4 and Figure 5 In some embodiments, the mixing unit 30 includes a third housing 31, which includes a mixing chamber 311. The combustion unit 10 can supply a heating gas flow into the mixing chamber 311, and the humidification unit 20 can supply a humidifying gas flow into the mixing chamber 311. The third housing 31 is provided with an outlet 34, which is located at the lower part of the mixing chamber 311 to ensure sufficient contact and heat exchange between the heating gas flow and the humidifying gas flow. For example, the heating airflow may contain flue gas, and the humidifying airflow may contain water droplets. The flue gas and water droplets can exchange heat and generate steam within the mixing chamber 311. In other words, the mixed airflow may contain steam. Compared to air, flue gas and steam are lighter, so they accumulate in the upper space of the mixing chamber 311. The outlet 34 is located in the lower part of the mixing chamber 311 to ensure that the water droplets and flue gas are fully mixed within the mixing chamber 311. After the water droplets fully absorb the heat from the high-temperature flue gas, they can generate a large amount of steam. The mixing chamber 311 can be filled with flue gas and steam. The flue gas and steam can move from the upper part of the mixing chamber 311 to the lower part and be output from the outlet 34 to the space that needs to be heated, further improving the heat exchange performance of the heat exchange chamber.

[0073] In some embodiments, the mixing unit 30 further includes sensors for monitoring the temperature and / or humidity of the outlet 34. That is, the mixing unit 30 may include a temperature sensor 32 for monitoring the temperature of the outlet 34, or the mixing unit 30 may include a humidity sensor 33 for monitoring the humidity of the outlet 34, or the mixing unit 30 may include both a temperature sensor 32 for monitoring the temperature of the outlet 34 and a humidity sensor 33 for monitoring the humidity of the outlet 34, to ensure that the mixed airflow at the outlet 34 has the temperature and humidity required by the user, thereby improving the user experience.

[0074] For example, the temperature sensor 32 can be located inside the mixing chamber 311 and control the start and stop of the combustion unit 10 based on the monitored temperature. The combustion unit 10 can operate intermittently. When the temperature of the outlet 34 is lower than the preset temperature, the combustion unit 10 can continue to operate and generate a large amount of heated airflow. The heated airflow and the humidifying airflow exchange heat in the mixing chamber 311 to generate a mixed airflow. A small amount of heated airflow and the mixed airflow are simultaneously delivered to the space that needs to be heated through the outlet 34 to increase the temperature of the outlet 34 and to heat the space that needs to be heated. When the temperature of the outlet 34 is equal to or greater than the preset temperature, the combustion unit 10 can stop operating, and the humidifying airflow can still exchange heat with the heated airflow remaining in the mixing chamber 311. When the temperature of the outlet 34 decreases, the combustion unit 10 can restart and provide sufficient heated airflow to the mixing chamber 311.

[0075] Furthermore, compared to continuous combustion, the intermittent operation of the combustion unit 10 can reduce gas consumption and energy costs, and improve the energy efficiency of the heating device 100.

[0076] Additionally, a humidity sensor 33 can be installed inside the mixing chamber 311 and control the operating state of the humidification unit 20 based on the monitored humidity to ensure that the mixed airflow output by the mixing unit 30 meets the user's required humidity. Specifically, when the humidity at the opening is lower than the preset humidity, the humidification unit 20 can be fully activated. For example, all atomizers 22 can be started, or the vibration frequency of the atomizers 22 can be increased, allowing the humidification unit 20 to generate a large amount of humidifying airflow. The combustion unit 10 can operate at its rated power. After the heating airflow and the large amount of humidifying airflow come into contact and exchange heat in the mixing chamber 311, a large amount of mixed airflow is generated to increase the humidity at the outlet 34. The heating airflow and the mixed airflow can then be delivered through the outlet 34 to the space requiring heating for further heating.

[0077] When the humidity at the opening is equal to or greater than the preset humidity, the humidification unit 20 can be partially turned on. For example, one of the multiple atomizers 22 can be turned on, or the vibration frequency of the atomizer 22 can be reduced to reduce the flow rate of the humidifying airflow generated by the humidification unit 20. The combustion unit 10 can operate at its rated power. The heated airflow and the humidifying airflow exchange heat in the mixing chamber 311 to generate a mixed airflow, thereby reducing the humidity at the outlet 34.

[0078] According to the heating device 100 of this utility model embodiment, the temperature and humidity of the opening are monitored by temperature sensor 32 and humidity sensor 33, and the mixing chamber 311 can output a mixed airflow that meets the user's needs from the outlet 34 to improve the user's experience.

[0079] Combination Figure 4 and Figure 5In some embodiments, the third housing 31 further includes a first flow channel 35 disposed between the mixing chamber 311 and the combustion unit 10 and a second flow channel 36 disposed between the mixing chamber 311 and the humidification unit 20. The first flow channel 35 is configured to gradually expand from the combustion unit 10 to the mixing chamber 311, thereby slowing down the flow rate of the heating gas flow into the mixing chamber 311, so that the heating gas flow and the humidification gas flow can be fully mixed and contact heat exchanged in the mixing chamber 311, thereby improving the heat exchange efficiency of the heating gas flow and the humidification gas flow.

[0080] For example, the heating airflow can be introduced from the combustion unit 10 into the mixing chamber 311 through the first flow channel 35, and the humidifying airflow can be introduced from the humidifying unit 20 into the mixing chamber 311 through the second flow channel 36, preventing the heating unit and the humidifying unit 20 from leaking into the external environment. Under the guiding effect of the first flow channel 35 and the second flow channel 36, the heating airflow and the humidifying airflow can smoothly enter the mixing chamber 311 for mixing and contact heat exchange. At the same time, the first flow channel 35 and the second flow channel 36 are located in the third housing 31, which can improve the integration of the heating device 100.

[0081] The combustion unit 10 may include a first housing 11, an igniter 13, a burner 12, and a first fan 14. The burner 12 may be located inside the first housing 11, and the first fan 14 may be located below the first housing 11. When the combustion unit 10 is running, the igniter 13 ignites the gas emitted by the burner 12, and the burner 12 produces high-temperature flue gas. The first fan 14 draws in external air to form a driving airflow. Driven by the driving airflow, the high-temperature flue gas can form a heating airflow. The heating airflow can be introduced from the combustion unit 10 into the mixing chamber 311 through the first flow channel 35. The first flow channel 35 is connected to the third housing 31. The flow path can be curved, and the first flow channel 35 is configured to gradually expand from the combustion unit 10 to the mixing chamber 311. The flow area of ​​the heating airflow in the first flow channel 35 is smaller than that in the mixing chamber 311. Therefore, the flow velocity of the heating airflow in the first flow channel 35 is faster. After entering the mixing chamber 311 from the first flow channel 35, the flow area of ​​the heating airflow gradually increases, which reduces the flow velocity of the heating airflow. The heating airflow can diffuse to the surroundings in the mixing chamber 311, which can prolong the time that the heating airflow stays in the mixing chamber 311, so that the heating airflow and the humidifying airflow can be fully mixed and contact heat exchanged, thereby improving the heating efficiency of the heating device 100.

[0082] Optionally, the first flow channel 35 may have a first section and a second section. The first section may extend in the left-right direction, and the second section may extend in the up-down direction. The combustion unit 10 may be located in the second section to reduce the flow resistance of the high-temperature flue gas and reduce the energy loss during the flow of the high-temperature flue gas. At the same time, the arc transition between the first and second sections can reduce the flow resistance of the high-temperature flue gas and increase the flow velocity of the high-temperature flue gas, so that the heated airflow generated by the combustion unit 10 can be quickly delivered to the mixing chamber 311, reducing the energy loss of the heated airflow during transport in the first flow channel 35, ensuring that the heated airflow still has a high temperature when delivered to the mixing chamber 311, and fully contacting and exchanging heat with the humidifying airflow, thereby improving the production efficiency of generating the mixed airflow.

[0083] Optionally, the burner 12 can be located inside the first flow channel 35, which can prevent the heated airflow generated by the combustion of the burner 12 from leaking to the outside, reduce the energy loss of the heated airflow generated by the combustion unit 10, and improve the integration level of the heating device 100.

[0084] In some embodiments, the second flow channel 36 is configured to gradually expand from the humidification unit 20 to the mixing chamber 311, thereby slowing down the flow rate of the humidifying airflow into the mixing chamber 311, so that the humidifying airflow and the humidifying airflow can be fully mixed and contact heat exchanged in the mixing chamber 311, thereby improving the heat exchange efficiency of the humidifying airflow and the humidifying airflow.

[0085] For example, the humidification unit 20 may include a second housing 21, an atomizer 22, and a first fan 14. The atomizer 22 may be disposed inside the second housing 21, and the top of the second housing 21 has a through hole for connecting to the second flow channel 36. The second fan 23 may be disposed on the wall of the second flow channel 36. When the humidification unit 20 is running, the atomizer 22 atomizes water and generates water droplets, and the second fan 23 draws in external air to form a driving airflow. The water droplets can form a humidifying airflow under the drive of the driving airflow. The humidifying airflow can be introduced from the second housing 21 through the second flow channel 36 into the mixing chamber 311. The connection between the second flow channel 36 and the third housing 31 is... The flow path can be curved, and the second flow channel 36 is configured to gradually expand from the humidification unit 20 to the mixing chamber 311. The flow area of ​​the humidifying airflow in the second flow channel 36 is smaller than that in the mixing chamber 311. Therefore, the flow velocity of the humidifying airflow in the second flow channel 36 is faster. After entering the mixing chamber 311 from the second flow channel 36, the flow area of ​​the humidifying airflow gradually increases, which reduces the flow velocity of the humidifying airflow. The humidifying airflow can diffuse to the surroundings in the mixing chamber 311, which can prolong the time that the humidifying airflow stays in the mixing chamber 311, so that the humidifying airflow can be fully mixed and contact heat exchanged, thereby improving the heating efficiency of the heating device 100.

[0086] Optionally, the second flow channel 36 can connect the humidification unit 20 and the mixing chamber 311. The wall of the second flow channel 36 can be provided with an airflow inlet 361. The second flow channel 36 has a horizontal section and a vertical section. The airflow inlet 361 can be provided on the wall of the vertical section and opposite to the horizontal section. The driving airflow generated by the second fan 23 can be sent into the horizontal section through the airflow inlet 361. The airflow drives the humidified airflow in the horizontal section to be quickly input into the mixing chamber 311. At the same time, compared with providing the airflow inlet 361 at other positions on the wall of the vertical section, the airflow inlet 361 being opposite to the horizontal section can reduce the backflow of the humidified airflow in the vertical section, thereby accelerating the rate at which the humidified airflow is input into the mixing chamber 311.

[0087] In some embodiments, the flow area of ​​the first flow channel 35 is larger than that of the second flow channel 36. The first fan 14 indirectly drives the heating airflow from the first flow channel 35 into the mixing chamber 311. That is, the first fan 14 can be located below the burner 12. The driving airflow of the first fan 14 decreases in velocity after passing through the burner 12 and carries the heating airflow into the first flow channel 35. The second fan 23 directly drives the humidifying airflow from the second flow channel 36 into the mixing chamber 311. That is, the second fan 23 can be directly located in the second flow channel 36 and directly drive the humidifying airflow. Therefore, the velocity of the humidifying airflow in the second flow channel 36 can be greater than the velocity of the heating airflow in the first flow channel 35. By making the flow area of ​​the first flow channel 35 larger than that of the second flow channel 36, the flow rate of the heating airflow into the mixing chamber 311 can be increased, ensuring sufficient contact heat exchange between the heating airflow and the humidifying airflow in the mixing chamber 311. This improves the heat exchange efficiency between the heating airflow and the humidifying airflow, thereby optimizing the heating performance of the heating device 100.

[0088] The cooking device according to the present invention includes: a main body of the device, the main body of the device including a cooking cavity; the aforementioned heating device 100, the heating device 100 being disposed in the main body of the device; and a mixing unit 30 communicating with the cooking cavity, so that the heating airflow, the mixed airflow, or the heating airflow and the mixed airflow in the mixing unit 30 enter the cooking cavity, thereby realizing the heating device 100 heating the cooking cavity.

[0089] For example, when the combustion unit 10 operates alone and the humidification unit 20 is not activated, the combustion unit 10 generates a heated airflow by burning gas. The mixing unit 30 can be used to receive and output the heated airflow, which can flow through the mixing unit 30 and be output to the cooking cavity, thus enabling the combustion unit 10 to heat independently. When the combustion unit 10 and the humidification unit 20 operate simultaneously, the humidification unit 20 can convert the fluid in the heating unit into a humidified airflow through pressurization, vibration, etc. The combustion unit 10 generates a heated airflow by burning gas. The humidified airflow and the heated airflow can be input into the mixing unit 30 for contact heat exchange. The heat in the heated airflow can be transferred to the humidified airflow. After absorbing heat, the humidified airflow quickly generates a high-temperature mixed airflow. The mixing unit 30 can be used to output the mixed airflow, which is output from the mixing unit 30 to the cooking cavity, improving the heating efficiency of the heating device 100.

[0090] When the combustion unit 10 is running and the humidification unit 20 is not running, the heating device 100 can generate a dry heated airflow. When the combustion unit 10 and the humidification unit 20 are running simultaneously, the heated airflow and the humidifying airflow can contact and exchange heat in the mixing unit 30 and quickly generate a mixed airflow. The heating device 100 can generate a mixed airflow with a certain humidity. When the combustion unit 10 generates a large amount of heated airflow, the heated airflow and the mixed airflow can be introduced into the cooking cavity through the mixing unit 30, so that the heating device 100 can generate heated airflow, mixed airflow, or heated airflow and mixed airflow according to the user's needs, thereby improving the user's experience.

[0091] According to the embodiments of the present invention, the cooking device accelerates the generation of mixed airflow and improves the heating efficiency of the cooking device by directly contacting and exchanging heat with the heating airflow and the humidifying airflow in the mixing unit 30.

[0092] The cooking device according to the present utility model has the heating device 100 with the specific structure of the above embodiments. Since the cooking device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0093] Optionally, the humidifying airflow may contain water droplets, and the heating airflow may contain flue gas. The mixing unit 30 can receive multiple water droplets and flue gas, which directly contact and exchange heat within the mixing unit 30, causing the water droplets to evaporate rapidly and generate a mixed airflow. The mixed airflow may contain steam, and the mixing unit 30 can output high-temperature steam to the cooking cavity to achieve the heating purpose of the heating device 100. Compared to using electric heating to generate high-temperature steam, the heating device 100 of this embodiment can quickly generate steam without preheating. The combustion unit 10 can generate a large amount of high-temperature flue gas in a short time to contact and exchange heat with multiple water droplets, improving the working efficiency of the heating device 100 in generating high-temperature steam.

[0094] Optionally, the cooking device may have a dry roasting mode, which means that the humidification unit 20 is not turned on, the combustion unit 10 works alone and generates a heating airflow, the heating airflow is input to the mixing unit 30 and delivered to the cooking cavity through the mixing unit 30, and the items in the cooking cavity can be dry roasted using the heating airflow.

[0095] Optionally, the cooking device may have a wet roasting mode, which means that a portion of the humidification unit 20 is turned on, for example, one of the multiple atomizers 22 is turned on, the combustion unit 10 can operate at rated power, and the heating airflow and the humidifying airflow come into contact and exchange heat in the mixing unit 30 to generate a mixed airflow. The heating airflow and the mixed airflow are simultaneously delivered to the cooking cavity through the mixing unit 30, and the mixed airflow can be used to humidify the heating airflow to increase the cooking humidity in the cooking cavity.

[0096] Optionally, the cooking device may have a steaming mode, which means that the humidifying unit 20 is fully turned on, for example, all the atomizers 22 are turned on. The combustion unit 10 can work intermittently. The heating airflow and the humidifying airflow come into contact and exchange heat in the mixing unit 30 to generate a mixed airflow. A small amount of heating airflow and the mixed airflow are simultaneously delivered to the cooking cavity through the mixing unit 30. The mixed airflow can be used to steam the items in the cooking cavity. When the temperature in the mixing unit 30 reaches a certain level, the combustion unit 10 can stop working. When the temperature in the mixing unit 30 decreases, the combustion unit 10 can restart.

[0097] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0099] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0100] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" 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.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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 the present invention. 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. 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.

[0102] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heating device (100), characterized in that, include: Combustion unit (10), the combustion unit (10) is configured to generate a heated airflow by heating the gas; Humidification unit (20), the humidification unit (20) being configured to generate humidifying airflow; A mixing unit (30) is connected to the combustion unit (10) and the humidification unit (20). The mixing unit (30) is used to receive the heating airflow and / or the humidification airflow, and to output the heating airflow or a mixture of the heating airflow and the humidification airflow.

2. The heating device (100) according to claim 1, characterized in that, The combustion unit (10) and the humidification unit (20) are connected to opposite sides of the mixing unit (30).

3. The heating device (100) according to claim 1, characterized in that, The combustion unit (10) and the humidification unit (20) are connected to the same side or adjacent side of the mixing unit (30).

4. The heating device (100) according to claim 1, characterized in that, The direction in which the combustion unit (10) introduces air into the mixing unit (30) and the direction in which the humidification unit (20) introduces air into the mixing unit (30) are opposite, parallel, coincident, or have an angle.

5. The heating device (100) according to claim 1, characterized in that, The combustion unit (10) includes: First shell (11); A burner (12) is disposed in the first housing (11) and is used to generate a heated airflow by burning gas. Ignition device (13), which is used to ignite the gas ejected from the burner (12); A first fan (14) is used to drive the heated airflow into the mixing unit (30).

6. The heating device (100) according to claim 5, characterized in that, The igniter (13) is configured for intermittent ignition to control the output flue gas temperature of the combustion unit (10).

7. The heating device (100) according to claim 1, characterized in that, The humidification unit (20) includes: The second housing (21) has an atomizing chamber (211) inside, and the atomizing chamber (211) is connected to the mixing unit (30); Atomizer (22), the atomizer (22) is disposed in the atomizing chamber (211) and is used to atomize water to generate humidifying airflow; The second fan (23) is used to drive the humidifying airflow into the mixing unit (30).

8. The heating device (100) according to claim 7, characterized in that, The humidification unit (20) is configured to control the vibration frequency of the atomizer (22) according to the humidity requirement; or, the number of atomizers (22) is multiple, and the humidification unit (20) is configured to control the number of atomizers (22) in operation according to the humidity requirement.

9. The heating device (100) according to claim 7, characterized in that, The humidification unit (20) further includes a water level monitoring device (25) for monitoring the water level in the atomizing chamber (211), wherein the highest water level in the atomizing chamber (211) is greater than or equal to 5 mm relative to the height of the atomizer (22); and / or, the humidification unit (20) further includes a water supply pipe (26) connected to the atomizing chamber (211) for supplying water to the atomizing chamber (211).

10. The heating device (100) according to claim 1, characterized in that, The mixing unit (30) includes: A third housing (31) includes a mixing chamber (311), into which the combustion unit (10) can supply heated airflow, and into the mixing chamber (311) the humidification unit (20) can supply humidifying airflow. The third housing (31) is provided with an outlet (34). The outlet (34) is located at the lower part of the mixing chamber (311); and / or, the mixing unit (30) further includes sensors (32, 33) for monitoring the temperature and / or humidity of the outlet (34).

11. The heating device (100) according to claim 10, characterized in that, The third housing (31) further includes a first flow channel (35) disposed between the mixing chamber (311) and the combustion unit (10) and a second flow channel (36) disposed between the mixing chamber (311) and the humidification unit (20). Wherein, the first flow channel (35) is configured to gradually expand from the combustion unit (10) to the mixing chamber (311); and / or, the second flow channel (36) is configured to gradually expand from the humidification unit (20) to the mixing chamber (311); and / or, the flow area of ​​the first flow channel (35) is greater than the flow area of ​​the second flow channel (36).

12. A cooking device, characterized in that, include: The main body of the equipment includes a cooking cavity; The heating device (100) according to any one of claims 1-11, wherein the heating device (100) is disposed on the main body of the equipment, and the mixing unit (30) is connected to the cooking cavity.

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