Burner assembly and cooking equipment

Abstract

The utility model discloses a furnace end assembly and cooking equipment. The furnace end assembly comprises a heating plate, a reflecting cover, a fan and at least one heat dissipation piece. The heating plate is arranged above a cooking container of the cooking equipment and provided with an air suction hole penetrating through the heating plate in the thickness direction of the heating plate. And the reflecting cover covers the heating plate. The fan is arranged between the reflecting cover and the heating plate so as to suck air from the cooking container through the air suction hole. The at least one heat dissipation piece is arranged on the heating plate and used for conducting heat from the heating plate to air sucked through the air suction holes. The heating plate radiates heat into the cooking container, and air is heated by the heating plate in the process of passing through the air suction holes. In addition, after air passes through the air suction holes, the air is in full contact with at least one heat dissipation piece on the heating plate, and the air is further heated. Therefore, in the air circulation flowing process, air is fully heated, the food heating efficiency is improved, and the use experience of the cooking equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and particularly relates to a burner assembly and a cooking device. Background Art

[0002] In existing air fryers, the heating element, the fan, and the frying basket for placing food are in one space. Among them, the fan is used as a power source to cause air convection in this space, and the heat generated by the heating element heats the food in the frying basket through two heat conduction methods: air convection and direct radiation. However, the existing technology has a low efficiency in heating air, and how to improve the heating efficiency of air directly affects the user experience of the air fryer.

[0003] It should be noted here that the statements in this background art section only provide background art related to the present application and do not necessarily constitute prior art. Summary of the Utility Model

[0004] The present application provides a burner assembly and a cooking device to improve the heating efficiency.

[0005] The first aspect of the present application relates to a burner assembly of a cooking device, which includes:

[0006] A hot plate, which is arranged above the cooking container of the cooking device and is provided with air suction holes;

[0007] A reflector cover that covers the hot plate;

[0008] A fan, which is arranged between the reflector cover and the hot plate to suck air from the cooking container through the air suction holes; and

[0009] At least one heat dissipation member, which is arranged on the hot plate and is used to conduct the heat from the hot plate to the air sucked through the air suction holes.

[0010] In some embodiments, at least one heat dissipation member is arranged on the side of the hot plate facing away from the cooking container.

[0011] In some embodiments, at least one heat dissipation member is arranged radially outside the fan, and its height is greater than or equal to the height of the fan blades.

[0012] In some embodiments, the height of the reflector cover is greater than the height of at least one heat dissipation member.

[0013] In some embodiments, at least one heat dissipation member includes a plurality of heat dissipation members, and the plurality of heat dissipation members are arranged in a clockwise or counterclockwise order around the fan.

[0014] In some embodiments, the center line along the radial direction of at least one heat dissipation member is designed such that the tangent of the innermost radial part of the center line is substantially tangent to the circular contour formed by the ends of the fan blades when the fan rotates.

[0015] In some embodiments, at least one heat dissipation member includes a plurality of heat dissipation members, and the plurality of heat dissipation members are evenly spaced apart from each other around the fan.

[0016] In some embodiments, at least one heat dissipation member includes a plurality of heat dissipation members, and a flow guiding air duct is formed between two adjacent ones of the plurality of heat dissipation members, and the flow guiding air duct gradually narrows in the direction close to the fan.

[0017] In some embodiments, at least one heat dissipation member includes straight blades or curved blades.

[0018] In some embodiments, at least one heat dissipation member includes a plurality of cylinders.

[0019] In some embodiments, the plurality of cylinders are arranged in a straight line or in an arc.

[0020] In some embodiments, at least one heat dissipation member is integrally formed with the heating plate.

[0021] In some embodiments, at least one heat dissipation member is separately formed from the heating plate and is detachably connected together.

[0022] In some embodiments, the heating plate includes a substrate and a heating tube disposed inside the substrate.

[0023] In some embodiments, the fan includes a centrifugal fan, and the burner assembly further includes a flow guiding tube, a first end of the flow guiding tube extends into the air suction hole, and a second end of the flow guiding tube extends to the air inlet of the centrifugal fan.

[0024] In some embodiments, the diameter of the flow guiding tube gradually increases from the first end of the flow guiding tube to the second end of the flow guiding tube.

[0025] The second aspect of the present application relates to a cooking device, which includes a cooking container and the above-mentioned burner assembly, and the burner assembly is disposed above the cooking container.

[0026] In some embodiments, the cooking device includes an air fryer or an oven.

[0027] Based on the technical solution provided by the present application, the burner assembly includes a heating plate, a reflector, a fan, and at least one heat dissipation member. The heating plate is disposed above the cooking container of the cooking device and has air suction holes penetrating through the heating plate in the thickness direction of the heating plate. The reflector covers the heating plate. The fan is disposed between the reflector and the heating plate to suck air from the cooking container through the air suction holes. At least one heat dissipation member is disposed on the heating plate for conducting the heat from the heating plate to the air sucked through the air suction holes. When the cooking device is in use, since the heating plate can generate heat by itself, on the one hand, the heating plate itself radiates heat into the cooking container. On the other hand, the air is heated by the heating plate during the process of passing through the air suction holes. On the third hand, after the air passes through the air suction holes, it comes into full contact with at least one heat dissipation member on the heating plate and is further heated. Thus, during the process of air circulation, the air is fully heated, thereby improving the heating efficiency of the cooking device for food and enhancing the user experience of the cooking device.

[0028] Other features and advantages of the present application will become clear from the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0030] Figure 1 is an overall schematic view of a cooking device according to some embodiments of the present application.

[0031] Figure 2 is a schematic view of a burner assembly of a cooking device according to some embodiments of the present application.

[0032] Figure 3 is a schematic structural view of a heating plate according to some embodiments of the present application.

[0033] Figure 4 is a schematic structural view of a heating plate according to some other embodiments of the present application.

[0034] Figure 5 is a schematic view of the arrangement manner of heat dissipation members according to some embodiments of the present application.

[0035] Figure 6 is Figure 5 a top view of

[0036] Figure 7 is a schematic view of the arrangement manner of heat dissipation members according to some other embodiments of the present application.

[0037] Figure 8 is a schematic view of the heat dissipation member in the form of a cylinder according to some embodiments of the present application.

[0038] Figure 9 Schematic diagram of the heat sink in the form of a cylinder for some other embodiments of the present application.

[0039] Figure 10 Schematic diagram of the heat sink in the form of a cylinder for some other embodiments of the present application.

[0040] Figure 11 Schematic diagram of the centrifugal fan for some embodiments of the present application.

[0041] Figure 12 In Figure 6 Top view after assembling the fan on the basis of.

[0042] Figure 13 Schematic diagram of the orientation relationship between the heat sink and the fan blades for some embodiments of the present application. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0044] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0045] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. may be used herein to describe the spatial positional relationship of a device or feature shown in the figures with respect to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used herein.

[0046] Reference Figure 1 and 2 Embodiments of the present application provide a cooking device 100, including a cooking container 102 and a burner assembly 101 disposed above the cooking container 102. The cooking container 102 is used to accommodate food to be heated, and the burner assembly 101 can form hot air that circulates and flows in the cooking container 102. The hot air transfers heat to the food during the process of flowing through the food, thereby completing the cooking of the food.

[0047] The burner assembly 101 includes a hot plate 1, a reflector 2, a fan 3, and at least one heat sink 4. The hot plate 1 is disposed above the cooking container 102 of the cooking device 100 and has air suction holes 13 penetrating through the hot plate 1 in the thickness direction of the hot plate 1. The reflector 2 covers the hot plate 1. The fan 3 is disposed between the reflector 2 and the hot plate 1 to suck air from the cooking container 102 through the air suction holes 13. At least one heat sink 4 is disposed on the hot plate 1 and is used to conduct the heat from the hot plate 1 to the air sucked through the air suction holes 13.

[0048] Specifically, when the cooking device 100 is in use, since the hot plate 1 can generate heat by itself, on the one hand, the hot plate 1 radiates heat into the cooking container 102 to directly act on the food, and moreover, the air will also be heated by the heat radiated by the hot plate 1 during the process of passing through the air suction holes 13. On the other hand, after the air passes through the air suction holes 13, it comes into full contact with at least one heat sink 4 on the hot plate 1 and is further heated. Thus, during the process of the air circulating and flowing, the air is fully heated, thereby improving the heating efficiency of the cooking device 100 for the food and enhancing the user experience of the cooking device 100.

[0049] The cooking device 100 may include an air fryer. Correspondingly, the cooking container 102 may include a frying bucket. In other embodiments, the cooking device 100 may include an oven, and the cooking container 102 may include an oven cavity.

[0050] Reference Figure 3 and 4 , in some embodiments, the heating plate 1 includes a substrate 11 and a heating tube 12 disposed inside the substrate 11. The substrate 11 and the heating tube 12 may be connected in a detachable manner, improving the convenience of assembly and reducing production costs. For example, threaded holes are respectively provided on the substrate 11 and the heating tube, and the two are detachably connected by bolt C. Alternatively, the substrate 11 and the heating tube 12 are connected in a non-detachable manner, such as being integrally die-cast, so that the heat of the heating tube 12 can be transferred to the substrate 11 faster, thereby improving the heating efficiency.

[0051] In addition, the heating plate 1 can roughly divide the interior of the cooking device 100 into upper and lower spaces. The space on the lower side constitutes the interior space of the cooking container 102, and the space on the upper side is called the interior space of the burner assembly 101. The upper and lower spaces are communicated through the air suction holes 13, so that most of the grease carried by the air during the flow is blocked on the side of the heating plate facing the cooking container 102, reducing the grease from entering the interior space of the burner assembly 101. Subsequently, when cleaning, it is only necessary to focus on cleaning the side of the heating plate facing the cooking container 102, improving the convenience of cleaning.

[0052] Reference Figure 2 , in some embodiments, the reflector 2 includes a top wall 21 and side walls 22 provided on the periphery of the top wall 21. The open end of the reflector 2 faces the cooking container 102, and the side walls 22 are connected to the top end of the cylindrical wall of the cooking container 102. An air outlet B is provided between the heating plate 1 and the side walls 22 for the air to circulate back into the cooking container 102. The area between the top wall 21 of the reflector 2 and the heating plate 1 of the cooking device 100 is the interior space of the burner assembly 101. After the air enters the interior space of the burner assembly 101 through the air suction holes 13, it is guided to the air outlet B under the action of the reflector 2 and flows back into the cooking container 102, thereby forming a circulating hot air flow to heat the food.

[0053] It can be understood that the air outlet B is annular, the side walls 22 of the reflector 2 form the outer ring, and the circumferential edge of the heating plate 1 forms the inner ring. In this way, a channel for the air to flow towards the cooking container 102 can be formed in the entire circumferential direction of the heating plate 1. On the one hand, the air output of the air outlet B is increased, and on the other hand, the uniformity of the air output can be improved, making the air circulation smoother.

[0054] In some embodiments, the height of the reflector 2 is greater than the height of at least one heat dissipation member 4, thereby preventing air leakage.

[0055] Specifically, setting the height of the reflector 2 to be higher than that of the heat dissipation member 4 can enable the reflector 2 to fully cover the heat dissipation member 4. Then, after air enters the internal space of the burner assembly 101, it can only flow through the air outlet B to the cooking container 102, avoiding air leakage. Thus, it promotes sufficient heat exchange between the air and the heat dissipation member 4 during the air flow, improving the heating efficiency of the air. Moreover, a gap can be formed between the top end in the height direction of the fan 3 and the top wall 21 of the reflector 2. On the one hand, it facilitates the assembly of the burner assembly 101, and on the other hand, it avoids friction and interference between the fan 3 and the reflector 2 due to jitter during the rotation of the fan 3.

[0056] In some embodiments, from one end of the side wall 22 of the reflector 2 close to the top wall 21 to the end of the side wall 22 in contact with the cooking container 102, the side wall 22 extends in a direction away from the central axis of the cooking container 102. Setting the reflector 2 in an outwardly expanding form makes the air circulation flow smoother.

[0057] In some embodiments, the cooking device 100 further includes a motor M. The motor M is arranged on the top wall 21 of the reflector 2 and is located on both sides of the top wall 21 with the heating plate 1 respectively. The motor M is used to drive the fan 3 to rotate. Such a setting can make the structure of the burner assembly 101 more compact, thereby helping to increase the space of the cooking container 102, facilitating the placement of food or cleaning.

[0058] In some embodiments, the fan 3 includes a centrifugal fan, and the burner assembly 101 further includes a diversion pipe 5. The first end of the diversion pipe 5 extends into the air suction hole, and the second end of the diversion pipe 5 extends to the air inlet of the centrifugal fan.

[0059] Setting the diversion pipe 5 can guide the air in the air suction hole 13 into the air inlet of the centrifugal fan, reducing the probability that the air entering the air suction hole 13 does not enter the centrifugal fan but directly flows to the gap G between the centrifugal fan and the heating plate 1. Furthermore, it improves the air circulation efficiency and heating efficiency. Moreover, the centrifugal fan can suck air through the air suction hole 13 and uniformly discharge the air to various positions of the annular air outlet B in the circumferential direction of the centrifugal fan, improving the uniformity of air flow.

[0060] In some embodiments, the diameter of the diversion pipe 5 gradually increases from the first end to the second end of the diversion pipe 5. This can better guide the air into the inlet of the centrifugal fan.

[0061] In some embodiments, the types of fan blades of the centrifugal fan include various types such as backward-inclined centrifugal fan blades, forward-inclined centrifugal fan blades, and multi-wing centrifugal fan blades. The characteristic of the backward-inclined centrifugal fan blade is that the bending direction of the fan blade is opposite to the rotation direction, that is, the trailing edge of the fan blade faces the inlet direction and the leading edge faces the outlet direction. The forward-inclined centrifugal fan blade is opposite to the backward-inclined type, and the bending direction of the fan blade is the same as the rotation direction, that is, the leading edge of the fan blade faces the inlet direction and the trailing edge faces the outlet direction. The multi-wing centrifugal fan blade refers to a fan blade with a number of blades more than that of ordinary single-wing or double-wing fan blades, usually having three or more blades. Different fan blades have different characteristics and can be configured according to requirements.

[0062] Reference Figure 5 , in some embodiments, at least one heat sink 4 is disposed on a surface of the heating plate 1 facing away from the cooking container 102.

[0063] Reference Figure 12 , in some embodiments, at least one heat sink 4 is disposed radially outside the fan 3 and has a height greater than or equal to the height of the fan blades of the fan 3.

[0064] Specifically, the fan 3 is disposed in the central region of the heating plate 1, and a space for arranging the heat sink 4 is left on the heating plate 1, so as to facilitate air to enter the internal space of the burner assembly 101 and contact the heat sink 4 for heat exchange, thereby improving the heating efficiency. And the height of the heat sink 4 is set to be not lower than the height of the fan blades of the fan 3, which can increase the surface area of the heat sink 4, so that the air emerging from the peripheral side of the fan 3 at the top in the height direction can also fully contact the heat sink 4, further improving the heat dissipation efficiency.

[0065] In some embodiments, both the fan 3 and the air suction hole 13 are located at the center of the heating plate 1, so that the fan 3 and the air suction hole 13 are coaxial, which facilitates air to flow from the air suction hole 13 to the fan 3 and improves the air circulation efficiency.

[0066] Reference Figures 5 to 7 , in some embodiments, at least one heat sink 4 includes a plurality of heat sinks, and the plurality of heat sinks are arranged in sequence clockwise or counterclockwise around the fan 3.

[0067] For example, in Figure 5 and 6 , the plurality of heat sinks are arranged clockwise, and in Figure 7 , the plurality of heat sinks are arranged counterclockwise. Both setting methods can enable the air emerging from the circumferential direction of the fan 3 in all directions to fully exchange heat with the heat sink 4, thereby improving the heating efficiency.

[0068] In some embodiments, the number of the heat dissipating members 4 can be any integer value between four and twenty-six, preferably sixteen or twenty-six. The more the number of the heat dissipating members, the greater the static pressure of the system and the greater the resistance. The fewer the number of the heat dissipating members, the smaller the static pressure of the system and the smaller the resistance.

[0069] Advantageously, the distribution direction of the plurality of heat dissipating members 4 around the fan is the same as the distribution direction of the fan blades of the fan 3. For example, the plurality of heat dissipating members 4 and the plurality of fan blades are both arranged in a clockwise direction. In this way, the wind resistance can be reduced, the blocking effect of the heat dissipating members on the air can be reduced, the air flow can be made smoother, and thus the heating efficiency can be improved. Of course, they can also be set in the reverse direction according to requirements, which will increase the wind pressure.

[0070] Reference Figure 5 , in some embodiments, the plurality of heat dissipating members are evenly spaced apart from each other around the fan. Making the plurality of heat dissipating members evenly distributed can enable the air to fully contact the heat dissipating members and improve the heating efficiency of the air.

[0071] Still referring to Figure 5 , in some embodiments, a flow guiding air duct A is formed between two adjacent ones of the plurality of heat dissipating members. The first end of the flow guiding air duct A leads to the edge of the heating plate 1, and the second end of the flow guiding air duct A is closer to the fan than the first end of the flow guiding air duct A. From the first end of the flow guiding air duct A to the second end of the flow guiding air duct A, the flow guiding air duct A gradually narrows.

[0072] With such a setting, after the air enters the flow guiding air duct A from the second end of the flow guiding air duct A, the flow velocity of the air decreases as the flow guiding air duct A widens, appropriately prolonging the time of the air in the flow guiding air duct A, and thus enabling the air to fully absorb the heat dissipated by the heat dissipating members 4.

[0073] Reference Figure 13 , in some embodiments, the center line along which at least one of the plurality of heat dissipating members 4 extends in a substantially radial direction is designed such that the tangent of the innermost radial part of the center line is substantially tangent to the circular contour formed by the ends of the fan blades when the fan rotates.

[0074] As Figure 13 shown by the arrow in, this can make the air outlet direction substantially the same as the extension direction of the flow guiding air duct A, enabling the air to enter the flow guiding air duct A more smoothly. Reducing the decrease in the dynamic pressure of the air, reducing the kinetic energy loss, and effectively ensuring the air flow velocity.

[0075] In some embodiments, each of at least one of the heat dissipating members 4 includes a straight blade or a curved blade. Specifically, as Figure 5 and 6 shown, the heat dissipating member in this embodiment is a straight blade. On the one hand, the surface of the straight blade itself can guide the air flow, and on the other hand, it can increase the surface area for heat exchange with the air. AsFigure 7 As shown, the heat sink of this embodiment is a curved blade, which can further increase the surface area compared with a straight blade to improve the heating efficiency of air. In summary, setting the heat sink in this way can significantly increase the contact area between the air and the heat sink, facilitating the heat sink to heat the air. With the increase of the contact area, the heating efficiency of the air is also significantly improved.

[0076] Reference Figure 8 and 9 , in some embodiments, each heat sink in at least one heat sink 4 includes a plurality of columns, and the plurality of columns include a row of a plurality of columns arranged in a straight line or a row of a plurality of columns arranged in an arc.

[0077] Specifically, referring to Figure 8 , each row of columns is arranged in a straight line. Referring to Figure 9 , each row of columns is arranged in an arc. Among them, in the embodiments of Figure 8 and 9 , the plurality of heat sinks are distributed counterclockwise. Different from the embodiments of Figure 8 and 9 , as shown in Figure 10 , the plurality of heat sinks are all distributed clockwise.

[0078] Replacing the heat sink in the form of a blade with a row of spaced columns can reduce the static pressure between the heat sink and the fan 3, enhance the air flow, and can ensure that the heat dissipation area is almost unchanged (although there are more gaps between the columns compared with the heat sink in the form of a blade, but the total surface areas of the two forms of heat sinks are roughly equal), and can also make the air flow more smoothly. The columns can specifically be cylindrical.

[0079] Reference Figures 8 to 10 , in some embodiments, the plurality of heat sinks are equally spaced in the circumferential direction. Among them, the plurality of columns in each heat sink are equally spaced, and the connection line of the radially innermost columns in the plurality of heat sinks is approximately circular. This is convenient for, after installing the fan, making the circular contour formed by the radial ends of the respective blades of the fan 3 during rotation match the approximately circular contour formed by the arrangement of the radially innermost columns in the plurality of heat sinks, so as to increase the number of columns provided on the heating plate 1, thereby increasing the heat exchange area between the heat sink and the air and improving the heating efficiency.

[0080] In some embodiments, the heat sink and the heating plate 1 are integrally formed. For example, an integral die-casting method is selected for manufacturing, which can ensure that there is no air gap between the heat sink and the heating plate 1, enabling the heat of the heating plate 1 to be efficiently conducted to the heat sink, and further improving the heating efficiency of the burner assembly 101 for air.

[0081] In some embodiments, to simplify the assembly process and reduce the manufacturing cost, the heat dissipation member and the heating plate 1 are separately formed and detachably connected together.

[0082] The working process of the cooking device 100 provided by the present application will be described below. First, place the food in the cooking container 102, and then start the cooking device 100. The motor M drives the centrifugal fan 3 to rotate. Under the action of the centrifugal fan 3, the air in the cooking container 102 is drawn towards the air suction holes 13, enters the inlet of the centrifugal fan 3 through the diversion pipe 5, and is discharged from the outlet of the centrifugal fan 3. The air discharged from the outlet of the centrifugal fan 3 exchanges heat with the surfaces of a plurality of heat dissipation members distributed in the internal space of the burner assembly 101 and is thus heated, and then flows towards the air outlet B and returns to the cooking container 102 under the guidance of the reflector 2. Thus, a circulating hot air is formed. During the circulation process, the hot air can quickly take away the moisture on the surface of the food and heat the food.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present application or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present application, they should all be covered within the scope of the technical solutions claimed in the present application.

Claims

1. A burner assembly of a cooking device, characterized in that: include: A heating plate (1), the heating plate (1) being arranged above the cooking container (102) of the cooking device and provided with an air suction hole (13); A reflective cover (2), wherein the reflective cover (2) covers the heating plate (1); a fan (3), the fan (3) being arranged between the reflector (2) and the heating plate (1) so as to draw air from the cooking container (102) through the air suction hole (13); as well as At least one heat sink (4), the at least one heat sink (4) being arranged on the heating plate (1) and used for conducting heat from the heating plate (1) to air sucked through the air suction hole (13).

2. The furnace head assembly according to claim 1, characterized in that: The at least one heat sink (4) is arranged on a surface of the heating plate (1) facing away from the cooking container (102).

3. The furnace head assembly according to claim 1, characterized in that: The at least one heat sink (4) is arranged radially outside the fan (3), and has a height greater than or equal to a blade height of the fan (3).

4. The furnace head assembly according to claim 1, characterized in that: The height of the reflector (2) is greater than the height of the at least one heat sink (4).

5. The furnace head assembly according to claim 1, characterized in that: The at least one heat sink (4) comprises a plurality of heat sinks, and the plurality of heat sinks are sequentially arranged in a clockwise or counterclockwise direction around the fan (3).

6. The furnace head assembly according to claim 1, characterized in that: The center line of the at least one heat sink (4) extending in the radial direction of the heating plate (1) is designed so that the tangent line of the radial innermost part of the center line is roughly tangent to the circular contour formed by the ends of the blades when the fan (3) rotates.

7. The furnace head assembly according to claim 1, characterized in that: The at least one heat sink (4) comprises a plurality of heat sinks, and the plurality of heat sinks are evenly spaced apart from each other around the fan (3).

8. The burner head assembly according to claim 1, characterized in that: The at least one heat sink (4) comprises a plurality of heat sinks, two adjacent heat sinks of the plurality of heat sinks forming a guide air duct (A) therebetween, and the guide air duct (A) gradually narrows towards the direction approaching the fan (3).

9. The burner head assembly according to any one of claims 1 to 8, characterized in that: The at least one heat sink (4) comprises straight blades or curved blades.

10. The furnace head assembly according to any one of claims 1 to 8, characterized in that: The at least one heat dissipation element (4) comprises a plurality of columns.

11. The burner head assembly according to claim 10, characterized in that: The plurality of columns are arranged in a straight line or in an arc.

12. The burner head assembly according to any one of claims 1 to 8, characterized in that: The at least one heat sink (4) is integrally formed with the heating plate (1).

13. The furnace head assembly according to any one of claims 1 to 8, characterized in that: The at least one heat sink (4) and the heating plate (1) are formed separately and are detachably connected together.

14. The burner head assembly according to any one of claims 1 to 8, characterized in that: The heating plate (1) comprises a base plate (11) and a heating tube (12) arranged inside the base plate (11).

15. The burner head assembly according to any one of claims 1 to 8, characterized in that: The fan (3) comprises a centrifugal fan, and the furnace head assembly further comprises a guide tube (5), a first end of the guide tube (5) extending into the air suction hole (13), and a second end of the guide tube (5) extending to an air inlet of the centrifugal fan.

16. The burner head assembly according to claim 15, characterized in that From the first end of the flow guide tube (5) to the second end of the flow guide tube (5), the diameter of the flow guide tube (5) gradually increases.

17. A cooking device, characterized in that: It comprises a cooking container (102) and a burner head assembly (101) according to any one of claims 1 to 16, wherein the burner head assembly (101) is arranged above the cooking container (102).

18. The cooking device according to claim 17, characterized in that The cooking device includes an air fryer or an oven.

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