Pot support and stove

Abstract

The utility model discloses a pot support and a stove. The pot bracket comprises a pot bracket main body and pot supporting legs; the pot rack main body is annular and is provided with a central through hole; the pot supporting legs are arranged on one side of the pot rack main body in the axial direction of the pot rack main body and are used for bearing a pot; the pot rack body is provided with a plurality of air outlets facing the center through hole and a plurality of air inlets deviating from the center through hole. The pot rack body is further provided with a plurality of flow gathering cavities, and each flow gathering cavity extends to one air outlet from one air inlet in the direction forming an included angle with the axial direction of the pot rack body. The pot support is provided with the flow gathering cavity, heat energy transmitted to the pot support body heats air in the flow gathering cavity, the part of heat is brought into the center through hole again, the heat dissipated by the pot support body is brought into the center through hole again to be supplied to a pot, the combustion temperature of flames is increased, and then the heat efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of kitchen utensils, and particularly to a pot support and a cooker. Background Art

[0002] A cooker is a common kitchen utensil in daily family life. A cooker generally includes a pot support and a burner. The pot support is disposed around the outer periphery of the burner for carrying a pot, and the burner is used for heating the pot.

[0003] When the burner works, the flame and high-temperature flue gas generated carry a large amount of heat energy. Part of the heat energy is transferred to the pot support and dissipated to the surroundings. This part of the dissipated heat energy is not utilized, resulting in a reduction in the thermal efficiency of the cooker. Summary of the Utility Model

[0004] The embodiments of this application provide a pot support and a cooker, which can solve the problem of low thermal efficiency of the cooker.

[0005] In a first aspect, the embodiments of this application provide a pot support, which includes a pot support body and pot feet;

[0006] The pot support body is annular and has a central through hole;

[0007] The pot feet are axially disposed on one side of the pot support body and are used for carrying a pot; wherein, the pot support body has a plurality of air outlets opened towards the central through hole and a plurality of air inlets opened away from the central through hole; the pot support body also has a plurality of flow concentration cavities, and each of the flow concentration cavities extends from one of the air inlets to one of the air outlets in a direction forming an angle with the axial direction of the pot support body.

[0008] In some exemplary embodiments, the air flow in the flow concentration cavity flows from the air inlet to the air outlet, and in the flow direction of the gas in the flow concentration cavity, at least part of the flow area of the flow concentration cavity gradually decreases.

[0009] In some exemplary embodiments, the area of the air outlet is smaller than the area of the air inlet; the flow concentration cavity includes a first flow segment and a second flow segment;

[0010] In the flow direction of the gas in the flow concentration cavity, the first flow segment extends from the air inlet towards the air outlet, and the flow area of the first flow segment gradually decreases;

[0011] In the flow direction of the gas in the flow concentration cavity, the second flow segment extends to the air outlet, and the flow area of the second flow segment gradually increases.

[0012] In some exemplary embodiments, in the flow direction of the gas in the converging cavity, at least one of the distances between two axially opposite wall surfaces of the first flow section along the pot rack body, and the distances between two circumferentially opposite wall surfaces of the first flow section along the central through hole gradually decreases; and / or, in the flow direction of the gas in the converging cavity, at least one of the distances between two axially opposite wall surfaces of the second flow section along the pot rack body, and the distances between two circumferentially opposite wall surfaces of the second flow section along the central through hole gradually increases.

[0013] In some exemplary embodiments, the converging cavity further includes a third flow section, and the third flow section is disposed between the first flow section and the second flow section;

[0014] In the flow direction of the gas in the converging cavity, at least one of the distances between two axially opposite wall surfaces of the third flow section along the pot rack body, and the distances between two circumferentially opposite wall surfaces of the third flow section along the central through hole remains unchanged.

[0015] In some exemplary embodiments, the pot rack body includes a heat insulation part, a pot rack base, and a plurality of partition parts;

[0016] The heat insulation part has the central through hole, and the pot support feet are arranged on the heat insulation part;

[0017] The pot rack base is spaced apart from the side of the heat insulation part away from the pot support;

[0018] A plurality of partition parts are arranged between the heat insulation part and the pot rack base, and the space between the heat insulation part and the pot rack base is divided into a plurality of the converging cavities.

[0019] In some exemplary embodiments, the pot support feet have a bearing surface for carrying cookware;

[0020] The heat insulation part has a converging top wall surface facing the pot rack base. In the axial direction of the pot rack body, the distance from the inner edge of the converging top wall surface to the bearing surface is L1, and the distance from the outer edge of the converging top wall surface to the bearing surface is L2, and L2 < L1.

[0021] In some exemplary embodiments, the pot rack base has a converging bottom wall surface facing the heat insulation part. In the axial direction of the pot rack body, the distance from the inner edge of the converging bottom wall surface to the bearing surface is L3, and the distance from the outer edge of the converging bottom wall surface to the bearing surface is L4, and L4 ≤ L3.

[0022] In some exemplary embodiments, a diversion surface is formed on the surface of the heat insulation part facing away from the pot rack base, and the pot support feet are arranged on the diversion surface;

[0023] In the axial direction of the pot rack body, the distance from the inner edge of the diversion surface to the bearing surface is L5, and the distance from the outer edge of the diversion surface to the bearing surface is L6, where L6 < L5, L5 < L1, and L6 < L2.

[0024] In some exemplary embodiments, the heat insulation part has a converging top wall surface facing the pot rack base, and the pot rack base has a converging bottom wall surface facing the heat insulation part;

[0025] The partition part extends to at least one of the inner edge of the converging top wall surface, the outer edge of the converging top wall surface, the inner edge of the converging bottom wall surface, and the outer edge of the converging bottom wall surface.

[0026] In some exemplary embodiments, in the circumferential direction of the central through hole, the lateral width of the air outlet is W1, and the lateral width of the air inlet is W2, where W1 < W2 and 3 mm ≤ W1 ≤ 15 mm.

[0027] In some exemplary embodiments, the partition part is in the shape of a sheet parallel to the axial direction of the pot rack body; and / or, in the circumferential direction of the central through hole, the lateral widths of two adjacent air inlets are equal, and in the axial direction of the pot rack body, the longitudinal widths of two adjacent air inlets are equal; and / or, in the circumferential direction of the central through hole, the lateral widths of two adjacent air outlets are equal, and in the axial direction of the pot rack body, the longitudinal widths of two adjacent air outlets are equal.

[0028] In a second aspect, an embodiment of the present application provides a cooking appliance, including a burner and the pot support as described above, and the central through hole of the pot support is used to accommodate the burner.

[0029] Based on the pot support and the cooking appliance of the embodiments of the present application, by providing that the pot support has a converging cavity, the heat energy transferred to the pot rack body will heat the air in the converging cavity. Since the temperature of the heated air becomes higher, the heated air in the converging cavity enters the central through hole from the air outlet, which can more efficiently promote the combustion of the gas, thereby improving the combustion efficiency. In addition, after the heat energy transferred to the pot rack body heats the air in the converging cavity, this part of the heat is brought into the central through hole again, so that the heat dissipated by the pot rack body is brought into the central through hole again to supply the cookware, increasing the combustion temperature of the flame, and further improving the thermal efficiency. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 Schematic three-dimensional structure diagram of a pot support according to an embodiment of the present application;

[0032] Figure 2 Schematic cross-sectional view of the opening directions of the air inlet and air outlet according to an embodiment of the present application;

[0033] Figure 3 Schematic cross-sectional view of the relative positions of the inner and outer edges of each wall surface according to an embodiment of the present application;

[0034] Figure 4 Schematic cross-sectional view of the partition extending to the outer edge of the confluence top wall surface according to an embodiment of the present application;

[0035] Figure 5 Schematic side view structure diagram of a pot support according to an embodiment of the present application.

[0036] Reference numerals:

[0037] 10. Pot support;

[0038] 100. Pot foot; 110. Bearing surface;

[0039] 200. Pot rack main body; 210. Heat insulation part; 211. Confluence top wall surface; 212. Flow guiding surface; 213. Heat insulation cavity; 214. First plate body; 215. Second plate body; 220. Partition; 230. Pot rack base; 231. Confluence bottom wall surface; 201. Central through hole;

[0040] 310. Confluence cavity; 311. First flow section; 312. Second flow section; 313. Third flow section; 320. Air inlet; 330. Air outlet. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] The inventors found that the pot support has three main functions: First, it restricts the flame and high-temperature flue gas generated by the burner burning gas to flow closely along the wall of the pot, strengthening the heat transfer to the pot; second, it reduces the heat dissipation of the flame and high-temperature flue gas to the surrounding environment; third, it organizes secondary air, controls the contact between the secondary air and the gas, enables the gas to burn as fully as possible, and thus reduces the heat loss of the exhaust gas. However, the heat energy carried by the flame and high-temperature flue gas will inevitably be transferred to the pot support and dissipated to the surrounding through the pot support. This part of the dissipated heat energy is not utilized, resulting in a reduction in the thermal efficiency of the stove. Based on this, the embodiments of the present application provide a pot support and a stove to improve the thermal efficiency of the stove.

[0043] As Figure 1 shown, it is a schematic structural diagram of a pot support 10 provided by an embodiment of the present application. The pot support 10 includes pot feet 100 and a pot rack main body 200.

[0044] The pot rack main body 200 is annular and has a central through hole 201 for accommodating the burner of the stove. The pot feet 100 are axially arranged on one side of the pot rack main body 200 in the axial direction H and are used to carry the pot. When the pot is carried on the pot feet 100, the pot is arranged corresponding to the central through hole 201 of the pot rack main body 200. The burner, the pot support 10, and the pot form a combustion space. The combustion space includes the central through hole 201 of the pot rack main body 200. The burner is arranged at the central through hole 201. The nozzle of the burner provides primary air, and the primary air mixes with the gas to burn and generate flame and flue gas to heat the pot. The pot feet 100 have a bearing surface 110 for carrying the pot, and at least part of the bearing surface 110 can be a plane parallel to the horizontal plane.

[0045] The pot feet 100 separate the pot from the pot rack main body 200. The combustion space also includes a gas passage space formed between the bottom wall of the pot and the pot rack main body 200. The flue gas generated when the burner burns can be discharged from the combustion space through the gas passage space. In this way, a heat flow path flowing from the central through hole 201 to the gas passage space is formed. The burner burns gas at the central through hole 201 to generate flame and flue gas to heat the pot. The annular pot rack main body 200 can separate the high-temperature flame generated by the burner from the external environment, reduce the influence of the external low-temperature air flow on the flame and the loss of combustion heat, and at the same time enable the high-temperature flue gas to stay in the combustion space for a longer time, so that the high-temperature flue gas has enough time to fully exchange heat with the bottom wall of the pot, improving the heat exchange efficiency and the overall thermal efficiency of the burner.

[0046] To further improve the combustion efficiency, secondary air also needs to be provided to the gas. Therefore, a space communicating with the combustion space also needs to be provided. The secondary air enters the combustion space through this space and then contacts the gas. Among them, the air inlet flow path of this space should be set as far as possible at intervals from the heat flow path to prevent the air flow in the air inlet flow path from reversing with the heat flow in the heat flow path and causing disorder, so that the secondary air can contact the gas in the central through hole 201 more efficiently and improve the combustion efficiency. Based on this, the pot support body 200 is provided with a plurality of air outlets 320 opened toward the central through hole 201 and a plurality of air inlets 330 opened away from the central through hole 201. The pot support body 200 also has a plurality of converging cavities 310, as Figure 2 shown. Each converging cavity 310 extends from one of the air inlets 330 in a direction forming an angle with the axial direction H of the pot support body 200 to one of the air outlets 320. The secondary air can enter the converging cavity 310 through the air inlet 330, flow out of the converging cavity 310 from the air outlet 320, and then enter the central through hole 201 to contact the gas. The flame and smoke generated by the gas combustion flow toward the side where the cookware is located. In this way, the air inlet flow path and the heat flow path are in independent spaces, the air inlet flow path to the heat flow path is smooth, and more efficient supply of secondary air can be achieved, and heat energy can be efficiently transferred to the cookware.

[0047] While the flame and smoke flow in the combustion space to heat the cookware, they will also contact the pot support body 200. Therefore, part of the heat energy will also be transferred to the pot support 10. In the embodiment of the present application, by providing the pot support 10 with the converging cavity 310, the heat energy transferred to the pot support body 200 will heat the secondary air in the converging cavity 310. The temperature of the heated secondary air becomes higher. The heated secondary air in the converging cavity 310 enters the central through hole 201 from the air outlet 320, which can more efficiently promote the combustion of the gas, thereby improving the combustion efficiency. In addition, after the heat energy transferred to the pot support body 200 heats the secondary air in the converging cavity 310, this part of the heat is brought into the central through hole 201 again, so that the heat diffused by the pot support body 200 is brought into the central through hole 201 again to supply the cookware, increasing the combustion temperature of the flame, and thus improving the thermal efficiency of the stove.

[0048] In the embodiment of the present application, the pot support 10 can directly place the pot rack body 200 on other structural members. For example, it can be placed on structural members such as the water receiving tray of the stove or the stove support, without the need to set up support structures such as support legs to separate the pot rack body 200 from other structural members. In the solution regarding the support legs, the support legs separate the pot rack body 200 from other structural members, forming a divergent space between the pot rack body 200 and other structural members. The outer surface of the pot rack body 200 is exposed to the divergent space, and the exposed area is large. The divergent space is directly connected to the environmental space where the pot support 10 is located. The heat energy transferred to the pot rack body 200 is easily transferred from the surface of the pot rack body 200 to the divergent space and then dissipated to the environmental space where the pot support 10 is located. The dissipation efficiency is fast. Even the secondary air can be heated during the process of passing through the divergent space. However, since the divergent space is an open space and there is no interception of heat, the utilization rate of the heat energy transferred to the divergent space is also relatively low, resulting in large heat loss.

[0049] In the embodiment of the present application, by setting the pot rack body 200 to have a converging cavity 310, the heat energy transferred to the pot rack enters the converging cavity 310 and accumulates therein. The wall surface of the pot rack body 200 that defines the converging cavity 310 can hinder the dissipation of heat energy, enabling more heat to be transferred to the secondary air and then brought to the central through-hole 201. The converging cavity 310 is entirely defined by the pot rack body 200. The area of the wall surface of the converging cavity 310 is large, and the area in contact with the secondary air in the converging cavity 310 is also large. Thus, heat can be transferred to the secondary air in the converging cavity 310 more efficiently, improving the heat exchange efficiency.

[0050] The air outlet 320 is opened in a direction forming an angle with the axial direction H of the pot rack body 200 towards the central through-hole 201 to guide the secondary air in the converging cavity 310 to supply the gas in the central through-hole 201 in a direction forming an angle with the axial direction H of the pot rack body 200. The opening direction of the air outlet 320 is the direction perpendicular to the plane where the air outlet 320 is located. As Figure 2 shown, the direction indicated by the arrow M is the opening direction of the air outlet 320. Figure 2 In [description], the air outlet 320 is opened along the radial direction of the pot rack body 200 towards the central through-hole 201.

[0051] The air inlet 330 is opened in a direction forming an angle with the axial direction H of the pot rack body 200 away from the central through-hole 201. The opening direction of the air inlet 330 is the direction perpendicular to the plane where the air inlet 330 is located. As Figure 2 shown, the direction indicated by the arrow N is the opening direction of the air inlet 330. Figure 2In the embodiment, the opening direction of the air inlet 330 is parallel to the opening direction of the air outlet 320. In this way, the air in the environment space where the pot support 10 is located can smoothly enter the focusing cavity 310 from the air inlet 330, which helps to make the overall structure of the pot support 10 compact. In addition, the flame generated by the burner burning gas has a flame center. The flame in the flame center runs parallel to the axial direction H of the pot support body 200. Under the obstruction of the pot, the flame spreads to the surroundings. In addition to the heat energy intercepted by the pot support body 200, part of the heat energy inevitably diffuses from the air space to the environment space where the pot support 10 is located, heating the air near the pot support 10. The air inlet 330 is opened away from the central through hole 201 in a direction that is angled with the axial direction H of the pot support body 200, and can receive the heated air near the pot support 10, and utilize this part of the hot air to improve the thermal efficiency.

[0052] Optionally, the opening area of ​​the air inlet 330 is larger than the opening area of ​​the air outlet 320, and the airflow in the focusing cavity 310 flows from the air inlet 330 to the air outlet 320. Figure 2 As shown, in the flow direction of the gas in the focusing chamber 310, the flow area of ​​at least part of the focusing chamber 310 gradually decreases. The flow area is the cross-sectional area of ​​the focusing chamber 310 in the flow direction of the gas in the focusing chamber 310. In this way, during the flow of the secondary air in the focusing chamber 310, the secondary air in at least part of the area is gathered, and the pressure of the secondary air in the area with a small flow area is large, which increases the probability of the hot secondary air contacting the wall of the focusing chamber 310, improves the heat exchange efficiency of the secondary air in the focusing chamber 310, and enables the secondary air in the focusing chamber 310 to be heated more efficiently. In addition, setting the flow area of ​​at least part of the focusing chamber 310 to gradually decrease also facilitates the design of the opening area of ​​the air inlet 330 to be larger than the opening area of ​​the air outlet 320, and makes the flow path in the focusing chamber 310 smooth.

[0053] Optionally, the flow area of ​​the region of the focusing chamber 310 adjacent to the air inlet 330 gradually increases; or, the flow area of ​​the region of the focusing chamber 310 adjacent to the air outlet 320 gradually increases; or, the flow area of ​​the middle region of the focusing chamber 310 gradually increases. With respect to other regions of the focusing chamber 310 except the region where the flow area gradually increases, the flow area thereof may gradually decrease or gradually increase.

[0054] like Figure 2As shown in the figure, the air-converging cavity 310 includes a first flow section 311. In the flowing direction of the gas in the air-converging cavity 310, the first flow section 311 extends from the air inlet 330 towards the air outlet 320, and the flow area of the first flow section 311 gradually decreases. The secondary air entering the air-converging cavity 310 from the air inlet 330 is gradually compressed and heated in the first flow section 311. The air-converging cavity 310 further includes a second flow section 312. The second flow section 312 is connected to the first flow section 311. In the flowing direction of the gas in the air-converging cavity 310, the second flow section 312 extends away from the air inlet 330 to the air outlet 320. The secondary air flowing through the first flow section 311 will continue to be heated after flowing into the second flow section 312. Among them, the flow area of the second flow section 312 gradually increases, and the pressure of the secondary air in the second flow section 312 becomes smaller. The smaller the pressure, the correspondingly smaller the flow velocity of the secondary air, so that the flow velocity of the air flowing from the air outlet 320 into the central through hole 201 is small, and the flame generated after contacting the gas is more stable, which helps to improve the combustion rate of the gas.

[0055] In the flowing direction of the gas in the air-converging cavity 310, at least one of the distances between the two opposite walls of the first flow section 311 along the axial direction H of the pot stand main body 200 and the distances between the two opposite walls of the first flow section 311 along the circumferential direction S of the central through hole 201 gradually decreases. Among them, when one of the above two distances gradually decreases, the other distance remains unchanged, or the other distance gradually increases, or the other distance gradually decreases. Specifically, it can be selected according to actual needs. Generally speaking, the condition that the flow area of the first flow section 311 gradually decreases in the flowing direction of the gas in the air-converging cavity 310 should be satisfied.

[0056] In the flowing direction of the gas in the air-converging cavity 310, at least one of the distances between the two opposite walls of the second flow section 312 along the axial direction H of the pot stand main body 200 and the distances between the two opposite walls of the second flow section 312 along the circumferential direction S of the central through hole 201 gradually increases. Similarly, when one of the above two distances gradually increases, the other distance remains unchanged, or the other distance gradually increases, or the other distance gradually decreases. Specifically, it can be selected according to actual needs. Generally speaking, the condition that the flow area of the second flow section 312 gradually increases in the flowing direction of the gas in the air-converging cavity 310 should be satisfied.

[0057] The second flow section 312 can be directly connected to the first flow section 311, or, as Figure 2 shown in the figure, the air-converging cavity 310 further includes a third flow section 313. The third flow section 313 is arranged between the first flow section 311 and the second flow section 312. The second flow section 312 is connected to the first flow section 311 through the third flow section 313.

[0058] In the gas flow direction within the air-converging cavity 310, at least one of the following spacings remains unchanged: the spacing between two opposing walls of the third flow section 313 along the axial direction H of the pot stand body 200, and the spacing between two opposing walls of the third flow section 313 along the circumferential direction S of the central through-hole 201. In this way, the secondary air flowing from the first flow section 311 into the third flow section 313 remains in a compressed state for efficient heat exchange. The presence of the third flow section 313, while compressing the secondary air, helps to reduce the length of the first flow section 311 in the gas flow direction within the air-converging cavity 310, preventing the first flow section 311 from being too long to meet the requirement of a smaller flow area, and thus preventing the situation where the flow area at the connection between the first flow section 311 and the second flow section 312 is too small, increasing the flow resistance. In addition, the presence of the third flow section 313 can also transition the area between the first flow section 311 and the second flow section 312 to meet the radial dimension requirements of the pot stand body 200 and prevent the first flow section 311 or the second flow section 312 from being too long.

[0059] In the gas flow direction within the air-converging cavity 310, the flow area of the third flow section 313 can gradually decrease, gradually increase, or remain unchanged. Specifically, when one of the following spacings remains unchanged: the spacing between two opposing walls of the third flow section 313 along the axial direction H of the pot stand body 200, and the spacing between two opposing walls of the third flow section 313 along the circumferential direction S of the central through-hole 201, the other spacing can gradually decrease, gradually increase, or remain unchanged, which can be specifically selected according to actual requirements. Among them, when the flow area of the third flow section 313 gradually decreases, the change rate of the flow area of the third flow section 313 is less than the change rate of the flow area of the first flow section 311; when the flow area of the third flow section 313 gradually increases, the change rate of the flow area of the third flow section 313 is less than the change rate of the flow area of the first flow section 311. The change rate of the flow area can be denoted as △m, and △m = |m2 - m1| / m1 * 100%, where m1 and m2 are the flow areas at both ends of the same flow section, m1 is the flow area at the end facing the air inlet in the gas flow direction within the air-converging cavity 310, and m2 is the flow area at the end facing the air outlet in the gas flow direction within the air-converging cavity 310.

[0060] In the embodiment of the present application, a flow concentrating cavity 310 penetrating the pot rack main body 200 can be directly processed inside the pot rack main body 200, with an air inlet 330 formed at one end of the flow concentrating cavity 310 and an air outlet 320 formed at the other end; alternatively, the pot rack main body 200 can be set to be in a hollow state, the air inlet 330 and the air outlet 320 are directly opened on the surface of the pot rack main body 200, and a plurality of partition members are arranged in the internal space of the pot rack main body 200, and the internal space of the pot rack main body 200 is divided into a plurality of flow concentrating cavities 310 by the plurality of partition members; or, the pot rack main body 200 can also be set to include a plurality of structural members, and the flow concentrating cavity 310, the air inlet 330 and the air outlet 320 are defined by the mutual splicing of the plurality of structural members.

[0061] Please refer to Figure 1 , the pot rack main body 200 includes a heat insulation part 210, a pot rack base 230 and a plurality of partition parts 220, and the flow concentrating cavity 310, the air inlet 330 and the air outlet 320 are defined by the mutual splicing of the heat insulation part 210, the pot rack base 230 and the plurality of partition parts 220. Specifically, the heat insulation part 210 has a central through hole 201, the pot support feet 100 are arranged on the heat insulation part 210, the pot rack base 230 is arranged at an interval on the side of the heat insulation part 210 away from the pot support 10, and the plurality of partition parts 220 are arranged between the heat insulation part 210 and the pot rack base 230 and divide the space between the heat insulation part 210 and the pot rack base 230 into a plurality of flow concentrating cavities 310. At this time, each air inlet 330 is defined by the heat insulation part 210, the pot rack base 230 and two adjacent partition parts 220, and each air outlet 320 is defined by the heat insulation part 210, the pot rack base 230 and two adjacent partition parts 220.

[0062] It should be noted that the central through hole 201 includes, but is not limited to, the area surrounded by the heat insulation part 210. The central through hole 201 can also include the area surrounded by the plurality of partition parts 220 and the pot rack base 230, so that the central through hole 201 has a depth in the axial direction H of the pot rack main body 200 to provide space for installing the burner and facilitate the proper distance from the top of the burner to the cookware. Among them, the depth of the central through hole 201 can be designed by designing the width of the partition part 220 in the axial direction H of the pot rack main body 200. The central through hole 201 can be a circular hole, a square hole or other shaped holes.

[0063] The pot rack base 230 is in a circular disc shape. A plurality of partition parts 220 are all connected to the disc-shaped pot rack base 230, which improves the installation stability of the plurality of partition parts 220 and strengthens the structural strength of the entire pot support 10. When the pot support 10 is borne on other structural parts of the stove top, the disc-shaped pot rack base 230 contacts with the other structural parts, improving the placement stability of the pot support 10. In addition, the partition part 220 is connected to the edge of the heat insulation part 210 and is adapted to the surface of the heat insulation part 210, and the partition part 220 is connected to the edge of the pot rack base 230 and is adapted to the surface of the pot rack base 230. When the partition part 220 is connected to the heat insulation part 210 and the pot rack base 230, two adjacent flow concentration cavities 310 are not communicated with each other in the circumferential direction S of the pot rack main body 200, preventing the air flow entering the two adjacent flow concentration cavities 310 from interfering with each other. The pot rack base 230, the heat insulation part 210 and the partition part 220 are integrally provided.

[0064] As Figure 3 shown, a flow guiding surface 212 is formed on the surface of the heat insulation part 210 facing away from the pot rack base 230. The pot support feet 100 are arranged on the flow guiding surface 212. After the flame and flue gas are blocked by the cookware, they change direction, and part of the flame and flue gas will flow to contact with the flow guiding surface 212, and then transfer heat to the heat insulation part 210. At the same time, the heat insulation part 210 is also near the flame and flue gas and will receive heat, so that the heat insulation part 210 receives more heat. By arranging the flow concentration cavity 310 on the side of the heat insulation part 210 away from the flow guiding surface 212, the heat received by the secondary air in the flow concentration cavity 310 is mainly the heat dissipated by the heat insulation part 210. By gathering the heat dissipated by the heat insulation part 210 into the flow concentration cavity 310, the heat dissipation is effectively reduced, thereby improving the thermal efficiency.

[0065] As Figure 3 shown, the heat insulation part 210 has a flow concentration top wall surface 211 facing the pot rack base 230, and the pot rack base 230 has a flow concentration bottom wall surface 231 facing the heat insulation part 210. The secondary air in the environmental space where the pot support 10 is located enters between the heat insulation part 210 and the pot rack base 230 through the area between the outer edges of the flow concentration top wall surface 211 and the flow concentration bottom wall surface 231, and the secondary air between the heat insulation part 210 and the pot rack base 230 enters the central through hole 201 through the area between the inner edges of the flow concentration top wall surface 211 and the flow concentration bottom wall surface 231.

[0066] Among them, the flow concentration top wall surface 211 can be a convex arc surface bent towards the side away from the pot support feet 100 to cooperate with the change requirements of the flow area of each flow section of the flow concentration cavity 310. Further, the heat insulation part 210 is integrally structured to bend towards the side away from the pot support feet 100, and the flow guiding surface 212 is a concave surface bent towards the side away from the pot support feet 100 to intercept more unburned flue gas from flowing back to the combustion space for re-combustion.

[0067] Optionally, the heat insulation part 210 has at least one heat insulation cavity 213, making the heat insulation part 210 have a hollow structure. The heat insulation cavity 213 can play a role in heat insulation, blocking the heat in the combustion space from dissipating outward, thereby reducing the heat energy loss of the burner and further improving the overall thermal efficiency of the burner. Further, the heat insulation part 210 may include multiple plate bodies, and the heat insulation cavity 213 is defined by splicing the multiple plate bodies together. As shown in the figure, the heat insulation part 210 includes a first plate body 214 and a second plate body 215. The first plate body 214 and the second plate body 215 are oppositely arranged along the axial direction H of the pot support body 200 and are spliced together to define the heat insulation cavity 213. The surface of the first plate body 214 facing away from the second plate body 215 forms a diversion surface 212, and the surface of the second plate body 215 facing away from the first plate body 214 forms a converging top wall surface 211. The first plate body 214 and the second plate body 215 can be fixedly connected by welding.

[0068] As Figure 3 shown, in the axial direction H of the pot support body 200, the distance from the inner edge of the converging top wall surface 211 to the bearing surface 110 is L1, and the distance from the outer edge of the converging top wall surface 211 to the bearing surface 110 is L2, and L2 < L1. In this way, it is convenient for the air on the side where the pot leg 100 is located to smoothly enter the space between the heat insulation part 210 and the pot support base 230, and the air receiving heat on the side where the pot leg 100 is located is returned to the converging cavity 310 for reuse, improving the thermal efficiency.

[0069] In the axial direction H of the pot support body 200, the distance from the inner edge of the converging bottom wall surface 231 to the bearing surface 110 is L3, and the distance from the outer edge of the converging bottom wall surface 231 to the bearing surface 110 is L4, and L4 ≤ L3. When L4 = L3, the converging bottom wall surface 231 can be a plane; when L4 < L3, the converging bottom wall surface 231 can be an inclined surface forming an angle with the axial direction H of the pot support body 200, or the converging bottom wall surface 231 is a concave surface curved toward the side away from the pot leg 100. Regarding the surface shape of the converging bottom wall surface 231, it can be specifically set according to the flow area requirements of each region of the converging top wall surface 211 and the converging cavity 310. Preferably, L4 < L3 to cooperate with the converging top wall surface 211 so that the air on the side where the pot leg 100 is located can more smoothly enter the space between the heat insulation part 210 and the pot support base 230.

[0070] In the axial direction H of the pot support body 200, the distance from the inner edge of the diversion surface 212 to the bearing surface 110 is L5, and the distance from the outer edge of the diversion surface 212 to the bearing surface 110 is L6, where L6 < L5, so as to facilitate the diversion surface 212 to intercept the flames and flue gas in the combustion space. Further, L5 < L1, so that the air flow path flowing through the confluence chamber 310 to the heat flow path flowing through the combustion space is smooth, reducing the flow resistance and improving the contact efficiency between the secondary air and the fuel gas. In addition, L6 < L2 can also be set, so that the outer edge of the diversion surface 212 is in a region closer to the pot support 10, and more flames and flue gas are intercepted at the diversion surface 212.

[0071] The partition portion 220 extends to at least one of the inner edge of the confluence top wall surface 211, the outer edge of the confluence top wall surface 211, the inner edge of the confluence bottom wall surface 231, and the outer edge of the confluence bottom wall surface 231. As Figure 3 shown, the partition portion 220 extends to the inner edge of the confluence top wall surface 211, the inner edge of the confluence bottom wall surface 231, and the outer edge of the confluence bottom wall surface 231, and is spaced from the outer edge of the confluence top wall surface 211. The outer edge of the confluence top wall surface 211 and the partition portion 220 can be used to guide the secondary air into the space between the heat insulation portion 210 and the pot support base 230, and then be diverted into each confluence chamber 310. In some other embodiments, as Figure 4 shown, the partition portion 220 can also be set to extend to the outer edge of the confluence top wall surface 211.

[0072] As Figure 5 shown, in the circumferential direction S of the central through hole 201, the lateral width of the air outlet 320 is W1, and the lateral width of the air inlet 330 is W2, where W1 < W2, 3 mm ≤ W1 ≤ 15 mm. For example, W1 can be 3 mm, 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, or any range between the two. By setting, W1 satisfies 3 mm ≤ W1 ≤ 15 mm, so that the width range of the air outlet 320 is appropriate, compressing the secondary air in the confluence chamber 310 for efficient heat exchange. When W1 is less than 3 mm, the width of the air outlet 320 is too small, and the flow resistance of the secondary air flowing out of the confluence chamber 310 in the confluence chamber 310 is large. When W1 is greater than 15 mm, the width of the air outlet 320 is too large, and there is no good compression effect on the secondary air in the confluence chamber 310, and it is difficult to have an effective heat exchange effect on the secondary air in the confluence chamber 310.

[0073] In the circumferential direction S of the central through hole 201, the lateral widths W1 of two adjacent air outlets 320 are equal, and in the axial direction H of the pot rack body 200, the longitudinal widths of two adjacent air outlets 320 are equal. In this way, the areas of each air outlet 320 are equal, and the airflow from multiple air outlets 320 to the central through hole 201 is uniform, which helps the gas to gather in the central area of ​​the central through hole 201 for combustion, improves the heat flow stability, and prevents the heat flow from running wild.

[0074] In the circumferential direction S of the central through hole 201, the lateral widths W2 of two adjacent air inlets 330 are equal, and in the axial direction H of the pot rack body 200, the longitudinal widths of two adjacent air inlets 330 are equal. In this way, the areas of the air inlets 330 are equal, and the air flow rates of the secondary air entering the focusing cavity 310 from the air inlets 330 are close to the same, which helps to improve the stability of the airflow in the focusing cavity 310, and further improve the stability of the airflow flowing out from the air outlet 320.

[0075] The above is only an exemplary introduction. In some other embodiments, the lateral widths of two adjacent air inlets 330 or the longitudinal widths of two adjacent air inlets 330 may be unequal, and the lateral widths of two adjacent air outlets 320 or the longitudinal widths of two adjacent air outlets 320 may be unequal. The embodiments of the present application do not limit this, and the specific selection can be made according to actual needs.

[0076] Two adjacent barrier portions 220 are spaced apart, and the flow collecting chamber 310 is formed between the two adjacent barrier portions 220. Figure 5 As shown, two adjacent focusing cavities 310 share the same barrier 220, so that the space between the heat insulating portion 210 and the pot rack base 230 can be more fully utilized to transfer secondary air, thereby improving the efficiency of supplying secondary air. In some other embodiments, each focusing cavity 310 can also be formed between two independent barrier 220, that is, the two adjacent focusing cavities 310 do not share the barrier 220, and the space between the heat insulating portion 210 and the pot rack base 230 except the focusing cavity 310 is closed.

[0077] The barrier portion 220 is in the shape of a sheet parallel to the axial direction H of the pot rack body 200, so that the secondary air flows smoothly in the focusing cavity 310. Figure 1, the partition portion 220 is in the shape of a flat plate extending radially along the pot support body 200; or, the partition portion 220 is in the shape of a flat plate forming an angle with the radial direction of the pot support body 200, that is, the partition portion 220 is inclined relative to the converging bottom wall surface 231, and a plurality of partition portions 220 are inclined in the same direction; or, the partition portion 220 is in the shape of a convex sheet protruding towards one side in the circumferential direction S of the pot support body 200, and the protruding directions of the partition portions 220 are the same. The above is only an exemplary introduction, and the shape of the partition portion 220 is not limited in the embodiments of the present application, and can be specifically selected according to actual needs.

[0078] In a second aspect, the present application further provides a cooking appliance, which includes a burner and the pot support 10 as described above, and the central through hole 201 of the pot support 10 is used to accommodate the burner.

[0079] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present 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 positional relationship in the drawings are only for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0080] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pot support, characterized in that, Comprising: A pot rack main body, which is annular and has a central through hole; and Pot support feet, which are axially arranged on one side of the pot rack main body and are used for carrying cooking utensils; Wherein, the pot rack main body has a plurality of air outlets opened towards the central through hole and a plurality of air inlets opened away from the central through hole; the pot rack main body also has a plurality of flow concentrating cavities, and each of the flow concentrating cavities extends from one of the air inlets to one of the air outlets along a direction forming an angle with the axial direction of the pot rack main body, and the area of the air outlet is smaller than the area of the air inlet.

2. The pot support according to claim 1, characterized in that, The air flow in the flow concentrating cavity flows from the air inlet to the air outlet, and in the flowing direction of the gas in the flow concentrating cavity, at least part of the flow through area of the flow concentrating cavity gradually decreases.

3. The pot support according to claim 2, characterized in that, The flow concentrating cavity includes: A first flow section, in the flowing direction of the gas in the flow concentrating cavity, the first flow section extends from the air inlet towards the air outlet, and the flow through area of the first flow section gradually decreases; A second flow section, in the flowing direction of the gas in the flow concentrating cavity, the second flow section extends to the air outlet, and the flow through area of the second flow section gradually increases.

4. The pot support according to claim 3, wherein In the flowing direction of the gas in the flow concentrating cavity, at least one of the distances between the two opposite wall surfaces of the first flow section along the axial direction of the pot rack main body and the distances between the two opposite wall surfaces of the first flow section along the circumferential direction of the central through hole gradually decreases; and / or, In the flowing direction of the gas in the flow concentrating cavity, at least one of the distances between the two opposite wall surfaces of the second flow section along the axial direction of the pot rack main body and the distances between the two opposite wall surfaces of the second flow section along the circumferential direction of the central through hole gradually increases.

5. The pot support according to claim 3, characterized in that, The flow concentrating cavity further includes a third flow section, and the third flow section is arranged between the first flow section and the second flow section; In the flowing direction of the gas in the flow concentrating cavity, at least one of the distances between the two opposite wall surfaces of the third flow section along the axial direction of the pot rack main body and the distances between the two opposite wall surfaces of the third flow section along the circumferential direction of the central through hole remains unchanged.

6. The pot support according to claim 1, characterized in that, The pot rack main body includes: A heat insulation part, which has the central through hole, and the pot support feet are arranged on the heat insulation part; A pot rack base, which is spaced apart from one side of the heat insulation part away from the pot support; and A plurality of partition parts, which are arranged between the heat insulation part and the pot rack base and divide the space between the heat insulation part and the pot rack base into a plurality of the flow concentrating cavities.

7. The pot support according to claim 6, characterized in that, The pot support feet have a bearing surface for carrying cooking utensils; The heat insulation part has a flow concentrating top wall surface facing the pot rack base. In the axial direction of the pot rack main body, the distance from the inner edge of the flow concentrating top wall surface to the bearing surface is L1, and the distance from the outer edge of the flow concentrating top wall surface to the bearing surface is L2, and L2 < L1.

8. The pot support according to claim 7, characterized in that, The pot rack base has a flow concentrating bottom wall surface facing the heat insulation part. In the axial direction of the pot rack main body, the distance from the inner edge of the flow concentrating bottom wall surface to the bearing surface is L3, and the distance from the outer edge of the flow concentrating bottom wall surface to the bearing surface is L4, and L4 ≤ L3.

9. The pot support according to claim 7, characterized in that, The surface of the heat insulation part facing away from the pot rack base forms a flow guiding surface, and the pot support feet are arranged on the flow guiding surface; In the axial direction of the pot rack main body, the distance from the inner edge of the flow guiding surface to the bearing surface is L5, and the distance from the outer edge of the flow guiding surface to the bearing surface is L6, where L6 < L5, L5 < L1, and L6 < L2.

10. The pot support according to claim 6, characterized in that, The heat insulation part has a converging top wall surface facing the pot rack base, and the pot rack base has a converging bottom wall surface facing the heat insulation part; The partition part extends to at least one of the inner edge of the converging top wall surface, the outer edge of the converging top wall surface, the inner edge of the converging bottom wall surface, and the outer edge of the converging bottom wall surface.

11. The pot support according to claim 6, wherein In the circumferential direction of the central through hole, the transverse width of the air outlet is W1, and the transverse width of the air inlet is W2, where W1 < W2 and 3mm ≤ W1 ≤ 15mm.

12. The pot support according to claim 6, wherein the partition part is in the shape of a sheet parallel to the axial direction of the pot rack main body; and / or in the circumferential direction of the central through hole, the transverse widths of two adjacent air inlets are equal, and in the axial direction of the pot rack main body, the longitudinal widths of two adjacent air inlets are equal; and / or in the circumferential direction of the central through hole, the transverse widths of two adjacent air outlets are equal, and in the axial direction of the pot rack main body, the longitudinal widths of two adjacent air outlets are equal.

13. A cooking appliance, characterized in that, It includes a burner and the pot support according to any one of claims 1 to 12, and the central through hole of the pot support is used to accommodate the burner.

Images