Pot rack and stove

Abstract

The pot rack comprises a pot rack body and a bottom corrugated structure, the pot rack body is annularly arranged, a combustion cavity is defined by the inner side of the pot rack body, and the bottom corrugated structure is arranged at the bottom of the pot rack body so that secondary air can enter the combustion cavity after heat exchange with the bottom corrugated structure. According to the technical scheme, the combustion efficiency of the combustor of the stove can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a pot rack and a stove using the pot rack. Background Art

[0002] The pot support of the stove is used to support the pot and ensure that secondary air can pass through the pot support to flow to the burner of the stove to ensure combustion efficiency. However, in the related art, the combustion efficiency of the burner is low, resulting in excessive energy consumption of the burner. Utility Model Content

[0003] The embodiments of the present application provide a pot rack and a stove, which can effectively improve the combustion efficiency of the burner of the stove.

[0004] In a first aspect, an embodiment of the present application provides a pot stand, the pot stand comprising:

[0005] The pot support body is arranged in a ring shape, and a combustion chamber is arranged on the inner side; and

[0006] The bottom corrugated structure is arranged at the bottom of the pot support body, so that the secondary air enters the combustion chamber after heat exchange with the bottom corrugated structure.

[0007] In some embodiments, the bottom corrugated structure and the pot rack body are separately provided, and the connection method between the two includes one of welding, riveting, screwing, clamping and interference fit.

[0008] In some embodiments, the bottom corrugated structure is an integrally formed component; or,

[0009] The bottom corrugated structure includes a plurality of corrugated segments, and the plurality of corrugated segments are arranged separately and are connected in sequence head to tail or arranged at intervals.

[0010] In some embodiments, the bottom corrugated structure and the pot rack body are integrally formed components, and the bottom of the pot rack body is formed by stamping or stretching to form the bottom corrugated structure.

[0011] In some embodiments, the bottom corrugated structure comprises a circumferential bottom corrugated structure, and the circumferential bottom corrugated structure extends continuously or discontinuously along the circumference of the pot support body.

[0012] In some embodiments, the circumferential bottom corrugated structure fluctuates along the height direction of the pot support body; or,

[0013] The circumferential bottom corrugated structure meanders in a horizontal plane where the bottom of the pot rack body is located, along a direction forming an angle with the circumference.

[0014] In some embodiments, the circumferential bottom corrugated structure includes a plurality of circles, and the plurality of circles of the circumferential bottom corrugated structure are distributed at intervals along the radial direction of the pot support body.

[0015] In some embodiments, along the radial direction pointing to the central axis of the pot rack body, in two adjacent circles of the circumferential bottom corrugated structure, the wave height of the circumferential bottom corrugated structure located on the outer side is greater than or equal to the wave height of the circumferential bottom corrugated structure located on the inner side.

[0016] In some embodiments, each circle of the circumferential bottom corrugated structure includes a plurality of circumferential corrugated segments arranged at intervals. In the same circle of the circumferential bottom corrugated structure, an air outlet is defined between two adjacent circumferential corrugated segments. Along the radial direction of the pot rack body, the air outlet is blocked by the circumferential corrugated segments of adjacent circles.

[0017] In some embodiments, the bottom corrugated structure comprises a radial bottom corrugated structure, and the radial bottom corrugated structure extends continuously or discontinuously along the radial direction of the pot support body.

[0018] In some embodiments, the radial bottom corrugated structure fluctuates along the height direction of the pot support body.

[0019] In some of the embodiments, the end of the radial bottom corrugated structure extending from the outside to the inside toward the combustion chamber is a trough, so as to guide the secondary air to the upper half of the combustion chamber.

[0020] In some embodiments, the radial bottom corrugated structure meanders in a direction forming an angle with the radial direction on a horizontal plane where the bottom of the pot support body is located.

[0021] In some embodiments, the radial bottom corrugated structure includes a plurality of radial corrugated segments, and the plurality of radial corrugated segments are sequentially connected end to end or arranged at intervals;

[0022] Among them, along the radial direction pointing to the central axis of the pot support body, of two adjacent radial corrugated sections, the wave height of the radial corrugated section located on the outer side is greater than or equal to the wave height of the radial corrugated section located on the inner side.

[0023] In some embodiments, the bottom corrugated structure includes a wave crest, and the wave crest is arc-shaped or V-shaped; and / or,

[0024] The bottom corrugated structure includes a trough, and the trough is in an arc shape or a V shape.

[0025] In some embodiments, the pot support body is a multi-layer structure and comprises at least:

[0026] Top plate; and

[0027] The bottom plate is spliced ​​with the top plate along the height direction of the pot rack body to cooperate to enclose a heat insulation cavity, and the bottom corrugated structure is arranged at the bottom of the bottom plate or is integrally formed with the bottom plate.

[0028] In a second aspect, an embodiment of the present application provides a stove, which includes:

[0029] Burners; and

[0030] As for the pot support as described above, the pot support body surrounds the outer side of the burner.

[0031] Based on the pot rack of the embodiment of the present application, by providing a bottom corrugated structure at the bottom of the pot rack body, the pot rack of the embodiment has at least the following technical effects:

[0032] First, heat is exchanged with the secondary air through the bottom corrugated structure to preheat the secondary air. In this way, not only can the heat radiated from the flame to the pot rack body be brought back to the combustion chamber through the secondary air to supplement the flame, thereby realizing heat recovery and improving the combustion efficiency of the burner of the stove, but the temperature of the pot rack body can also be reduced by the bottom corrugated structure, effectively improving the high-temperature ablation phenomenon of the pot rack body. At the same time, the supplementary effect of the secondary air on the burner flame can be effectively improved, so that the carbon monoxide generated by the burner during operation can be better converted into carbon dioxide, reducing the emission of smoke to ensure the health safety of users.

[0033] Secondly, in the form of the bottom corrugated structure, due to its own characteristics, it will fluctuate or bend. Therefore, when the secondary air flows through the undulating or curved parts of the bottom corrugated structure, it is easier for the secondary air to generate eddies. This can increase the residence time of the secondary air at the bottom of the pot rack, thereby improving the heat exchange efficiency between the secondary air and the bottom corrugated structure, and greatly improving the preheating effect of the pot rack of this embodiment on the secondary air. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the connection structure between an external cooker and an embodiment of the cooker of the present application;

[0036] Figure 2 for Figure 1 The structural schematic diagram of a stove embodiment shown;

[0037] Figure 3 for Figure 2 The structural schematic diagram of an embodiment of a pot rack shown;

[0038] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA plane;

[0039] Figure 5 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown;

[0040] Figure 6 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown;

[0041] Figure 7 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown;

[0042] Figure 8 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown;

[0043] Fig. 9 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown;

[0044] Fig.10 for Figure 2 A structural schematic diagram of another embodiment of a pot rack is shown.

[0045] Description of Figure Numbers:

[0046] 1000, stove; 100, pot rack; 10, pot rack body; 10a, combustion chamber; 10d, heat insulation chamber; 101, top; 102, bottom of pot rack body; 103, inner side; 104, outer side; 105, top plate; 106, bottom plate; 14, bottom corrugated structure; 141, radial bottom corrugated structure; 1411, radial corrugated section; 1412, head end; 1413, end; 142, circumferential bottom corrugated structure; 1421, circumferential corrugated section; 1422, air outlet; 143, corrugated section; 144, wave crest; 145, wave trough; 50, pot support foot; 60, supporting leg; 200, burner; 2000, pot.

[0047] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0049] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0050] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0052] Please refer to Figure 1 to Figure 2 The present application proposes a stove 1000. In the embodiment of the present application, the stove 1000 includes a pot rack 100 and a burner 200. The pot rack 100 is used to be placed on a stove (not shown in the figure) and to support the pot 2000 to prevent the pot 2000 from sliding or tipping over during heating, reduce the occurrence of accidental injuries, and ensure the stability of the cooking process.

[0053] The pot rack 100 surrounds the outer side of the burner 200 and forms a combustion chamber 10a, so that the flame generated by the burner 200 during operation will pass through the combustion chamber 10a to contact the bottom of the pot 2000, thereby heating the pot 2000. In addition, under the circular setting of the pot rack 100, the heat of the burner 200 can be concentrated and transferred in the direction of the pot 2000, preventing heat leakage, and thus the heat of the flame generated by the burner 200 can fully act on the pot 2000.

[0054] In order to improve the combustion efficiency of the burner 200 by means of the pot support 100, please refer to Figures 3 to 5 Specifically, the pot support 100 may include a pot support body 10 and a bottom corrugated structure 14 .

[0055] The pot support body 10 is arranged in an annular shape, for example, it can be arranged in a circular ring shape, an elliptical ring shape or a square ring shape, and the pot support body 10 can be made of cast iron, enamel or galvanized materials with advantages of high temperature resistance and good strength. The pot support body 10 surrounds the outer side of the burner 200, and the inner side is surrounded by the above-mentioned combustion chamber 10a.

[0056] The bottom corrugated structure 14 can be made of copper, aluminum or other metal materials with good thermal conductivity, which is not limited in this embodiment. The bottom corrugated structure 14 is arranged at the bottom of the pot rack body 10 so that the secondary air enters the combustion chamber 10a after heat exchange with the bottom corrugated structure 14. It can be understood that the secondary air can enter the combustion chamber 10a through the bottom of the pot rack body 10 to supplement the flame of the burner 200, so that the flame burns fully; during the operation of the burner 200, the heat radiation generated by the flame generated by it will act on the pot rack body 10 surrounding the outside of the burner 200, and indirectly heat the pot rack body 10. Furthermore, the heat on the pot rack body 10 will also be exchanged with the bottom corrugated structure 14 in a heat exchange manner to increase the temperature of the bottom corrugated structure 14, so that when the secondary air enters the combustion chamber 10a from the bottom of the pot rack body 10, the secondary air can exchange heat with the bottom corrugated structure 14 to increase its own temperature, so that the secondary air can be preheated by the bottom corrugated structure 14 before it supplements the flame of the burner 200.

[0057] Among them, the specific arrangement forms of the bottom corrugated structure 14 being arranged at the bottom of the pot rack body 10 may include the following three: the first, the bottom corrugated structure 14 is directly connected to the bottom of the pot rack body 10 to realize that the bottom corrugated structure 14 is arranged at the bottom of the pot rack body 10; the second, the bottom corrugated structure 14 is formed at the bottom of the pot rack body 10 to realize that the bottom corrugated structure 14 is arranged at the bottom of the pot rack body 10; the third, the bottom corrugated structure 14 is indirectly connected to the pot rack body 10 through an additionally arranged connecting member, and the bottom corrugated structure 14 is located at the bottom of the pot rack body 10, so that the bottom corrugated structure 14 can also be arranged at the bottom of the pot rack body 10, and this embodiment does not limit this.

[0058] It is understandable that the bottom corrugated structure 14 may fluctuate or bend due to its own characteristics. Figure 4Based on this, in some embodiments, the bottom corrugated structure 14 may include a crest 144 due to its own characteristics, wherein the crest 144 is in an arc shape or a V-shape. When the crest 144 is in an arc shape, it can avoid being too sharp to reduce the risk of scratches caused by the user touching the crest 144 of the bottom corrugated structure 14. When the crest 144 is in a V-shape, the turbulence of the secondary air can be increased after flowing through the crest 144 of the bottom corrugated structure 14, thereby making the secondary air contact with the bottom corrugated structure 14 more frequently, so as to increase the heat exchange between the secondary air and the bottom corrugated structure 14, thereby enhancing the heat exchange efficiency between the two. This embodiment is not limited to this.

[0059] In other embodiments, the bottom corrugated structure 14 may also include a trough 145 due to its own characteristics, wherein the trough 145 is arc-shaped or V-shaped. When the trough 145 is arc-shaped, it can avoid being too sharp to reduce the risk of scratches caused by the user touching the trough 145 of the bottom corrugated structure 14. When the trough 145 is V-shaped, the turbulence of the secondary air can be increased after flowing through the trough 145 of the bottom corrugated structure 14, thereby making the secondary air contact with the bottom corrugated structure 14 more frequent, thereby increasing the heat exchange between the secondary air and the bottom corrugated structure 14, thereby enhancing the heat exchange efficiency between the two. This is not limited to the present embodiment.

[0060] In some other embodiments, the bottom corrugated structure 14 also includes a crest 144 and a trough 145 due to its own characteristics, wherein the crest 144 is in an arc shape or a V shape, and the trough 145 is in an arc shape or a V shape. When the crest 144 is in an arc shape, it can avoid being too sharp to reduce the risk of scratches caused by the user touching the crest 144 of the bottom corrugated structure 14. When the crest 144 is in a V shape, the secondary air can increase its turbulence after flowing through the crest 144 of the bottom corrugated structure 14, thereby making the secondary air contact with the bottom corrugated structure 14 more frequently, thereby increasing the contact between the secondary air and the bottom corrugated structure 14. The heat exchange between the corrugated structures 14 is enhanced, thereby enhancing the heat exchange efficiency of the two. This embodiment does not limit this. Moreover, when the trough 145 is in an arc shape, the trough 145 can be avoided to be too sharp, so as to reduce the risk of scratches caused by the user touching the trough 145 of the bottom corrugated structure 14. When the trough 145 is in a V-shape, the turbulence of the secondary air can be increased after flowing through the trough 145 of the bottom corrugated structure 14, so that the secondary air contacts the bottom corrugated structure 14 more frequently, so as to increase the heat exchange between the secondary air and the bottom corrugated structure 14, thereby enhancing the heat exchange efficiency of the two. This embodiment does not limit this.

[0061] In summary, by providing a bottom corrugated structure 14 at the bottom of the pot rack body 10, the pot rack 100 of this embodiment has at least the following technical effects:

[0062] First, heat is exchanged with the secondary air through the bottom corrugated structure 14 to preheat the secondary air. In this way, not only can the heat radiated by the flame to the pot rack body 10 be brought back to the combustion chamber 10a through the secondary air to supplement the flame, thereby realizing heat recovery and improving the combustion efficiency of the burner 200 of the stove 1000, but the temperature of the pot rack body 10 can also be reduced by the bottom corrugated structure 14, effectively improving the high-temperature ablation phenomenon of the pot rack body 10. At the same time, the supplementary effect of the secondary air on the flame of the burner 200 can be effectively improved, so that the carbon monoxide generated by the burner 200 during operation can be better converted into carbon dioxide, reducing the emission of smoke to ensure the safety of the user.

[0063] Secondly, the bottom corrugated structure 14 will fluctuate or bend due to its own characteristics. Therefore, when the secondary air flows through the undulating or curved parts of the bottom corrugated structure 14, it is easier for the secondary air to generate eddies. This can increase the residence time of the secondary air at the bottom of the pot rack 100, thereby improving the heat exchange efficiency between the secondary air and the bottom corrugated structure 14, and greatly improving the preheating effect of the pot rack 100 of this embodiment on the secondary air.

[0064] Please refer to Figure 1 to Figure 2 In some embodiments, the pot rack 100 further includes pot legs 50, which are connected to the top 101 of the pot rack body 10 and are used to support the bottom of the pot 2000. The pot legs 50 may be in the shape of long strips, which increase the connection area between the pot legs 50 and the bottom of the pot 2000, so as to improve the stability of the pot support by the pot legs 50, and the pot legs may be made of a material with high temperature resistance such as cast iron, which is not limited in this embodiment.

[0065] See also Figure 3 In some embodiments, the pot rack 100 further includes a plurality of support legs 60, which are connected to the pot rack body 10 at intervals along the circumference of the pot rack 100. The support legs 60 are used to be placed on the stove to support the pot rack body 10, so as to set the pot rack body 10 on the stove.

[0066] Please refer to Figures 3 to 5 In some embodiments, the bottom corrugated structure 14 and the pot frame body 10 are separately provided. Therefore, the bottom corrugated structure 14 and the pot frame body 10 can be manufactured separately, which is convenient for manufacturing and molding, and also convenient for maintaining a high manufacturing accuracy of the bottom corrugated structure 14 and the pot frame body 10.

[0067] The bottom corrugated structure 14 and the pot support body 10 are connected by welding, riveting, screwing, clamping and interference fit.

[0068] When connecting the two, for example, any one of the above connection methods can be used, such as welding or riveting, which is a relatively strong connection. For example, a combination of multiple connection methods can be used, such as through the cooperation of snap connection and threaded connection, or through the cooperation of interference fit and snap connection, which can further improve the stability of the connection between the bottom corrugated structure 14 and the pot rack body 10.

[0069] In an exemplary embodiment, when the connection mode between the bottom corrugated structure 14 and the pot rack body 10 is screw connection, the pot rack 100 further includes a locking member, wherein the bottom corrugated structure 14 is provided with a connecting portion, and the connecting portion is provided with a first threaded hole, and the pot rack body 10 is provided with a second threaded hole, and the locking member is sequentially penetrated through the first threaded hole and the second threaded hole to achieve the screw connection between the bottom corrugated structure 14 and the pot rack body 10. In another exemplary embodiment, when the connection mode between the bottom corrugated structure 14 and the pot rack body 10 is snap connection, the bottom corrugated structure 14 is provided with a connecting portion, and the connecting portion is provided with a buckle, and accordingly, the pot rack body 10 is provided with a slot that is snap-fitted with the buckle.

[0070] Please refer to Figures 4 to 5 Furthermore, the bottom corrugated structure 14 is an integrally formed component. Thus, in the actual manufacturing process, the bottom corrugated structure 14 can be formed in one step, reducing the assembly steps, and on the basis of the integrally formed component, the strength of the bottom corrugated structure 14 can be improved.

[0071] Please refer to Figures 5 and 6 Optionally, the bottom corrugated structure 14 includes a plurality of corrugated segments 143. It is understood that each corrugated segment 143 includes at least one crest 144 and a trough 145. The plurality of corrugated segments 143 are arranged in separate bodies and are connected end to end in sequence (e.g. Figure 5 ) or interval settings (such as Figure 6 In this way, according to the actual preheating requirements, the corrugated segments 143 with different wave heights or the corrugated segments 143 with different bending directions can be selected to be connected or arranged at intervals, which provides a higher selectivity.

[0072] Please refer to Figures 3 to 5 In some embodiments, the bottom corrugated structure 14 and the pot rack body 10 are integrally formed components, and the bottom of the pot rack body 10 is formed by stamping to form the bottom corrugated structure 14. In the actual manufacturing process, a press machine and a die can be used to apply a deformation force to the bottom of the pot rack body 10, so as to form the bottom corrugated structure 14 at the bottom of the pot rack body 10. In this way, the size and shape accuracy of the bottom corrugated structure 14 can be ensured, and the bottom corrugated structure 14 can be directly formed.

[0073] Optionally, the bottom of the pot rack body 10 can also be stretched to form a bottom corrugated structure 14. In the actual manufacturing process, the pot rack body 10 can be placed on a stretching machine, and a stretching force is applied to the pot rack body 10 to deform the bottom of the pot rack body 10 to form the bottom corrugated structure 14. In this way, the bottom corrugated structure 14 can be directly formed.

[0074] See also Figure 4 In some embodiments, the pot support body 10 is a multi-layer structure and includes at least a top plate 105 and a bottom plate 106, which are spliced ​​with the top plate 105 along the height direction of the pot support body 10 to cooperate to enclose a heat insulation cavity 10d. In this way, the heat insulation cavity 10d can reduce the heat in the combustion cavity 10a from being dissipated outward from the pot support body 10, so as to further improve the overall combustion efficiency of the burner 200.

[0075] Of course, the present application is not limited to this. In other embodiments, the pot rack body 10 may include, in addition to the top plate 105 and the bottom plate 106, a middle plate arranged between the top plate 105 and the bottom plate 106, the top plate 105 and the bottom plate 106 respectively enclose a sub-cavity with the middle plate, the insulation cavity 10d includes two sub-cavities, or the pot rack body 10 is a single-layer structure, which is not limited in this embodiment.

[0076] The bottom corrugated structure 14 can be arranged at the bottom of the bottom plate 106 , that is, the bottom corrugated structure 14 is directly connected to the bottom of the bottom plate 106 , or the bottom corrugated structure 14 is indirectly connected to the bottom plate 106 through an additionally arranged connecting member, and the bottom corrugated structure 14 is located at the bottom of the bottom plate 106 .

[0077] Optionally, the bottom corrugated structure 14 may also be integrally formed with the bottom plate 106 , that is, the bottom of the bottom plate 106 is formed into the bottom corrugated structure 14 by stamping or stretching, which is not limited in this embodiment.

[0078] See also Figure 5 In some embodiments, the bottom corrugated structure 14 includes a circumferential bottom corrugated structure 142, and the circumferential bottom corrugated structure 142 can extend continuously along the circumference of the pot rack body 10. In this way, the secondary air located in different areas on the circumference of the pot rack body 10 can exchange heat with the circumferential bottom corrugated structure 142, thereby increasing the heat exchange area between the secondary air and the circumferential bottom corrugated structure 142, further improving the preheating effect of the bottom corrugated structure 14 on the secondary air, and the temperature of the secondary air located in different areas on the circumference of the pot rack body 10 after being preheated by the circumferential bottom corrugated structure 142 can be close to the same.

[0079] See also Figure 6Optionally, the circumferential bottom corrugated structure 142 may also extend discontinuously along the circumference of the pot rack body 10. In this way, the discontinuous portion of the circumferential bottom corrugated structure 142 can appropriately reduce the total material usage of the circumferential bottom corrugated structure 142, while allowing the secondary air located in different circumferential regions of the pot rack body 10 to exchange heat with the circumferential bottom corrugated structure 142 as much as possible, which is not limited in this embodiment.

[0080] See also Figure 4 Furthermore, the circumferential bottom corrugated structure 142 is undulating along the height direction of the pot rack body 10. It can be understood that the undulating parts of the circumferential bottom corrugated structure 142 are formed into grooves, so that when the secondary air flows through the grooves of the circumferential bottom corrugated structure 142, the secondary air will increase the turbulence, so that the secondary air and the circumferential bottom corrugated structure 142 are in contact more frequently, so as to increase the heat exchange between the secondary air and the circumferential bottom corrugated structure 142, and can increase the heat exchange time between the secondary air and the circumferential bottom corrugated structure 142, thereby improving the heat exchange effect between the two.

[0081] Please refer to Figures 5 and 6 Optionally, the circumferential bottom corrugated structure 142 meanders in a direction that is at an angle to the circumference on the horizontal plane where the bottom of the pot rack body 10 is located. Similarly, the bend of the circumferential bottom corrugated structure 142 is also formed into a groove, so that when the secondary air flows through the groove of the circumferential bottom corrugated structure 142, the turbulence of the secondary air is increased, thereby ultimately improving the heat exchange effect between the secondary air and the circumferential bottom corrugated structure 142.

[0082] It should be noted that when the bottom area of ​​the pot rack body 10 is large so that the circumferential bottom corrugated structure 142 can be bent in a circuitous manner, the circumferential bottom corrugated structure 142 can be in a circuitous bending form; and when the bottom area of ​​the pot rack body 10 is small and the overall height of the pot rack 100 is not high due to the ups and downs of the circumferential bottom corrugated structure 142, the circumferential bottom corrugated structure 142 can be in an undulating form, and this embodiment does not impose any restrictions on this.

[0083] In order to further improve the preheating effect of the circumferential bottom corrugated structure 142 on the secondary air, please refer to Figure 7In some embodiments, the circumferential bottom corrugated structure 142 includes multiple circles, for example, two circles, three circles, or four circles, etc. The multiple circles of the circumferential bottom corrugated structure 142 are distributed at intervals along the radial direction of the pot rack body 10. In this way, compared with the form of the single-circle circumferential bottom corrugated structure 142, the multiple-circle form can not only increase the heat exchange area between the secondary air and the bottom corrugated structure 14, but also enable the secondary air to flow through the uneven circumferential bottom corrugated structure 142 multiple times, further increasing the turbulence of the secondary air, so as to further improve the heat exchange effect between the secondary air and the circumferential bottom corrugated structure 142, thereby effectively improving the preheating effect of the circumferential bottom corrugated structure 142 on the secondary air.

[0084] In other embodiments, the circumferential bottom corrugated structure 142 may also be in the form of a single circle, which is not limited in this embodiment.

[0085] In some embodiments, along the radial direction pointing to the central axis of the pot rack body 10, in two adjacent circles of circumferential bottom corrugated structures 142, the wave height of the circumferential bottom corrugated structure 142 located on the outside is greater than the wave height of the circumferential bottom corrugated structure 142 located on the inside. It should be noted that when the wave height of the circumferential bottom corrugated structure 142 located on the outside is greater than the wave height of the circumferential bottom corrugated structure 142 located on the inside, at this time, the wave heights of the multiple circles of circumferential bottom corrugated structures 142 from the outside to the inside gradually decrease.

[0086] It is understandable that, in the process of the secondary air flowing through the undulating or curved parts of the circumferential bottom corrugated structure 142, the turbulence of the secondary air will be greater on the basis of the greater wave height of the circumferential bottom corrugated structure 142. In this way, the turbulence of the secondary air can be first increased by using the circumferential bottom corrugated structure 142 located on the outside, so that the secondary air flows to the subsequent area at the bottom of the pot rack body 10 in a form with greater turbulence. In this way, the total heat exchange area between the secondary air and the bottom corrugated structure 14 can be increased by previously increasing the turbulence of the secondary air, and the total heat exchange time between the secondary air and the circumferential bottom corrugated structure 142 can be increased, so as to greatly increase the preheating effect of the bottom corrugated structure 14 on the secondary air.

[0087] Optionally, the wave height of the circumferential bottom corrugated structure 142 located on the outside is equal to the wave height of the circumferential bottom corrugated structure 142 located on the inside. It should be noted that when the wave height of the circumferential bottom corrugated structure 142 located on the outside is equal to the wave height of the circumferential bottom corrugated structure 142 located on the inside, the wave heights of the multiple circles of circumferential bottom corrugated structures 142 from the outside to the inside are all equal. In this way, this form can keep the wave heights of the multiple circles of circumferential bottom corrugated structures 142 consistent, so as to facilitate the molding and design of the bottom corrugated structure 14. Of course, the present application is not limited to this. In other embodiments, the wave height of the circumferential bottom corrugated structure 142 located on the outside can also be smaller than the wave height of the circumferential bottom corrugated structure 142 located on the inside, so that the wave height of the multiple circles of circumferential bottom corrugated structures 142 from the outside to the inside gradually increases.

[0088] See also Figure 7 In some embodiments, each circle of the circumferential bottom corrugation structure 142 includes a plurality of circumferential corrugation segments 1421 disposed at intervals, and the plurality of circumferential corrugation segments 1421 all have wave crests 144 and wave troughs 145 . In the same circle of the circumferential bottom corrugation structure 142 , an air outlet 1422 is defined between two adjacent circumferential corrugation segments 1421 .

[0089] It is understandable that part of the secondary air will flow through the air port 1422, but this part of the secondary air does not exchange heat with the circumferential corrugated section 1421, and does not have a preheating effect. Therefore, based on this technical problem, along the radial direction of the pot rack body 10, this embodiment sets the air port 1422 to be blocked by the circumferential corrugated section 1421 of the adjacent circle, so that even if part of the secondary air flows through the air port 1422, it will contact the circumferential corrugated section 1421 of the adjacent circle to exchange heat with the circumferential corrugated section 1421, ensuring the preheating effect of the circumferential bottom corrugated structure 142 on the secondary air, so as to solve this technical problem.

[0090] See also Figure 8 In some embodiments, the bottom corrugated structure 14 includes a radial bottom corrugated structure 141, which continuously extends in the radial direction of the pot rack body 10. In this way, when the secondary air flows in the radial direction at the bottom of the pot rack body 10, it can exchange heat with the circumferential bottom corrugated structure 142 for a long time, thereby increasing the heat exchange area between the secondary air and the circumferential bottom corrugated structure 142, and further improving the preheating effect of the bottom corrugated structure 14 on the secondary air.

[0091] See also Fig. 9Optionally, the radial bottom corrugated structure 141 extends discontinuously along the radial direction of the pot support body 10. In this way, the discontinuous part of the radial bottom corrugated structure 141 can appropriately reduce the total material usage of the radial bottom corrugated structure 141, while allowing the secondary air to exchange heat with the circumferential bottom corrugated structure 142 as much as possible when flowing radially at the bottom of the pot support body 10, which is not limited in this embodiment.

[0092] Please refer to Figures 8 to 9 In some embodiments, the radial bottom corrugated structure 141 is undulating along the height direction of the pot support body 10. It is understandable that the undulating parts of the radial bottom corrugated structure 141 are formed into grooves, so that when the secondary air flows through the grooves of the radial bottom corrugated structure 141, the secondary air will increase the turbulence, so that the secondary air and the radial bottom corrugated structure 141 are in contact more frequently, so as to increase the heat exchange between the secondary air and the radial bottom corrugated structure 141, and can increase the heat exchange time between the secondary air and the radial bottom corrugated structure 141, thereby improving the heat exchange effect between the two.

[0093] See also Fig.10 In other embodiments, the radial bottom corrugated structure 141 meanders in a direction that is angled with the radial direction on the horizontal plane where the bottom of the pot rack body 10 is located. Similarly, the curved part of the radial bottom corrugated structure 141 is also formed into a groove, so that when the secondary air flows through the groove of the radial bottom corrugated structure 141, the turbulence of the secondary air is increased, thereby ultimately improving the heat exchange effect between the secondary air and the radial bottom corrugated structure 141.

[0094] Based on the fact that the radial bottom corrugated structure 141 is in the form of ups and downs, please refer to Figures 8 to 9 Furthermore, the end 1413 of the radial bottom corrugated structure 141 extending from the outside to the inside toward the combustion chamber 10a is a trough 145 to guide the secondary air to the upper half of the combustion chamber 10a.

[0095] It can be understood that both the inner ring fire cover and the outer ring fire cover in the burner 200 have fire outlet holes, and the fire outlet holes of the inner ring fire cover and the outer ring fire cover are located in the upper half of the combustion chamber 10a. Based on this, when the end 1413 of the radial bottom corrugated structure 141 is a trough 145, the surface of the end 1413 is an arc surface that bulges from high to low along the height direction of the pot rack body 10, so that after the secondary air flows through the end 1413, it can be guided by the arc surface to the upper half of the combustion chamber 10a, so that the secondary air can flow toward the fire outlet hole, thereby enhancing the secondary air's supplementary combustion effect on the flame ejected through the fire outlet hole.

[0096] Of course, the present application is not limited thereto. In other embodiments, the end 1413 of the radial bottom corrugated structure 141 extending from the outside to the inside toward the combustion chamber 10a along the radial bottom corrugated structure 141 may also be a wave peak 144.

[0097] In some embodiments, the radial bottom corrugated structure 141 includes a plurality of radial corrugated segments 1411, and the plurality of radial corrugated segments 1411 are connected end to end in sequence (eg, Figure 8 ) or interval settings (such as Fig. 9 ), the plurality of radial corrugated segments 1411 each have a crest 144 and a trough 145;

[0098] Among them, along the radial direction pointing to the central axis of the pot support body 10, in two adjacent radial corrugated sections 1411, the wave height of the radial corrugated section 1411 located on the outer side is greater than the wave height of the radial corrugated section 1411 located on the inner side.

[0099] It is understandable that, in the process of the secondary air flowing through the undulating or curved parts of the radial corrugated section 1411, the turbulence of the secondary air will be greater on the basis of the greater wave height of the radial corrugated section 1411. In this way, the turbulence of the secondary air can be first increased by using the radial corrugated section 1411 located on the outside, so that the secondary air flows to the subsequent area at the bottom of the pot rack body 10 in a form of greater turbulence. In this way, the total heat exchange area between the secondary air and the bottom corrugated structure 14 can be increased by previously increasing the turbulence of the secondary air, and the total heat exchange time between the secondary air and the radial corrugated section 1411 can be increased, so as to greatly increase the preheating effect of the bottom corrugated structure 14 on the secondary air.

[0100] Optionally, the wave height of the radial corrugation section 1411 located on the outside can be equal to the wave height of the radial corrugation section 1411 located on the inside. It should be noted that when the wave height of the radial corrugation section 1411 located on the outside is equal to the wave height of the radial corrugation section 1411 located on the inside, the wave heights of the multiple radial corrugation sections 1411 from the outside to the inside are equal. In this way, this form can keep the wave heights of the multiple radial corrugation sections 1411 consistent, so as to facilitate the molding and design of the radial bottom corrugation structure 141. Of course, the present application is not limited to this. In other embodiments, the wave height of the radial corrugation section 1411 located on the outside can also be smaller than the wave height of the radial corrugation section 1411 located on the inside, so that the wave heights of the multiple radial corrugation sections 1411 from the outside to the inside gradually increase.

[0101] See also Fig.10In some embodiments, the pot support body 10 has an inner side surface 103 facing the combustion chamber 10a, and the innermost radial corrugated section 1411 in the radial bottom corrugated structure 141 extends from the outside to the inside, the end 1413 closest to the combustion chamber 10a, to the connection between the inner side surface 103 and the bottom of the pot support body 10, or exceeds the inner side surface 103 to partially extend into the combustion chamber 10a.

[0102] In this way, compared with the spacing between the end 1413 and the connection between the inner side surface 103 and the bottom of the pot rack body 10, this embodiment can increase the length of the radial corrugated section 1411 to increase the heat exchange area between the radial corrugated section 1411 and the secondary air, thereby enhancing the preheating effect of the radial bottom corrugated structure 141 on the radial corrugated section 1411.

[0103] In other embodiments, the end 1413 of the innermost radial corrugated section 1411 in the radial bottom corrugated structure 141, which is closest to the combustion chamber 10a from the outside to the inside, can be spaced from the connection between the inner side surface 103 and the bottom of the pot support body 10, and this embodiment is not limited to this.

[0104] See also Fig.10 In some embodiments, the pot support body 10 has an outer side surface 104 facing away from the combustion chamber 10a, and the head end 1412 of the radial corrugated section 1411 located at the outermost side of the radial bottom corrugated structure 141, which is farthest from the combustion chamber 10a from the outside to the inside, does not exceed the outer side surface 104. In this way, it is possible to avoid the situation where the head end 1412 of the radial bottom corrugated structure 141, which is farthest from the combustion chamber 10a from the outside to the inside, exceeds the outer side surface 104 and causes scratches to the user, thereby ensuring the user's safety.

[0105] Of course, the present application is not limited to this. In other embodiments, the radial corrugated section 1411 located on the outermost side of the radial bottom corrugated structure 141 and the head end 1412 farthest from the combustion chamber 10a from the outside to the inside may extend beyond the outer side surface 104 .

[0106] It should be noted that the bottom corrugated structure 14 of the pot rack 100 of the present application may be in the form of a circumferential bottom corrugated structure 142, or in the form of a radial bottom corrugated structure 141, or in the form of a combination of a circumferential bottom corrugated structure 142 and a radial bottom corrugated structure 141, and the present application does not impose any restrictions on this.

[0107] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0108] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pot stand, characterized in that: include: The pot frame body is arranged in a ring shape, and a combustion chamber is arranged on the inner side; and The bottom corrugated structure is arranged at the bottom of the pot support body, so that the secondary air enters the combustion chamber after heat exchange with the bottom corrugated structure.

2. The pot support according to claim 1, characterized in that: The bottom corrugated structure and the pot rack body are arranged separately, and the connection method between the two includes one of welding, riveting, screwing, clamping and interference fit.

3. The pot support according to claim 2, characterized in that: The bottom corrugated structure is an integrally formed component; or, The bottom corrugated structure includes a plurality of corrugated segments, and the plurality of corrugated segments are arranged separately and are connected in sequence head to tail or arranged at intervals.

4. The pot support according to claim 1, characterized in that: The bottom corrugated structure and the pot rack body are integrally formed components, and the bottom of the pot rack body is formed by stamping or stretching to form the bottom corrugated structure.

5. The pot support according to any one of claims 1 to 4, characterized in that: The bottom corrugated structure comprises a circumferential bottom corrugated structure, and the circumferential bottom corrugated structure extends continuously or discontinuously along the circumference of the pot support body.

6. The pot support according to claim 5, characterized in that: The circumferential bottom corrugated structure fluctuates along the height direction of the pot support body; or The circumferential bottom corrugated structure meanders in a horizontal plane where the bottom of the pot rack body is located, along a direction forming an angle with the circumference.

7. The pot support according to claim 5, characterized in that: The circumferential bottom corrugated structure includes a plurality of circles, and the plurality of circles of the circumferential bottom corrugated structure are distributed at intervals along the radial direction of the pot support body.

8. The pot support according to claim 7, characterized in that: Along the radial direction pointing to the central axis of the pot rack body, in two adjacent circles of the circumferential bottom corrugated structure, the wave height of the circumferential bottom corrugated structure located on the outer side is greater than or equal to the wave height of the circumferential bottom corrugated structure located on the inner side.

9. The pot support according to claim 7, characterized in that: Each circle of the circumferential bottom corrugated structure includes a plurality of circumferential corrugated segments arranged at intervals. In the same circle of the circumferential bottom corrugated structure, an air outlet is defined between two adjacent circumferential corrugated segments. Along the radial direction of the pot rack body, the air outlet is blocked by the circumferential corrugated segments of adjacent circles.

10. The pot support according to any one of claims 1 to 4, characterized in that: The bottom corrugated structure comprises a radial bottom corrugated structure, and the radial bottom corrugated structure extends continuously or discontinuously along the radial direction of the pot support body.

11. The pot support according to claim 10, characterized in that: The radial bottom corrugated structure fluctuates along the height direction of the pot support body.

12. The pot support according to claim 11, characterized in that: The end of the radial bottom corrugated structure extending from the outside to the inside toward the combustion chamber is a wave trough, so as to guide the secondary air to the upper half of the combustion chamber.

13. The pot support according to claim 10, characterized in that: The radial bottom corrugated structure meanders in a direction forming an angle with the radial direction on a horizontal plane where the bottom of the pot support body is located.

14. The pot support according to claim 10, characterized in that: The radial bottom corrugated structure comprises a plurality of radial corrugated segments, and the plurality of radial corrugated segments are sequentially connected end to end or arranged at intervals; Among them, along the radial direction pointing to the central axis of the pot support body, of two adjacent radial corrugated sections, the wave height of the radial corrugated section located on the outer side is greater than or equal to the wave height of the radial corrugated section located on the inner side.

15. The pot support according to any one of claims 1 to 4, characterized in that: The bottom corrugated structure comprises a wave crest, and the wave crest is in an arc shape or a V shape; and / or, The bottom corrugated structure includes a trough, and the trough is in an arc shape or a V shape.

16. The pot support according to any one of claims 1 to 4, characterized in that: The pot support body is a multi-layer structure and at least comprises: Top plate; and The bottom plate is spliced ​​with the top plate along the height direction of the pot rack body to cooperate to enclose a heat insulation cavity, and the bottom corrugated structure is arranged at the bottom of the bottom plate or is integrally formed with the bottom plate.

17. A cooking appliance, characterized in that: include: Burner; and The pot support according to any one of claims 1 to 16, wherein the pot support body surrounds the outer side of the burner.

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