Energy gathering ring and stove comprising same

Abstract

The utility model provides an energy-gathering ring and a stove comprising the same, the energy-gathering ring is used for sleeving the radial outer side of a fire cover of the stove, the lower surface of the energy-gathering ring is obliquely arranged from bottom to top in the direction from the radial outer side to the radial inner side of the energy-gathering ring, and a plurality of flow guide ribs are arranged on the lower surface of the energy-gathering ring. The multiple flow guide ribs are arranged at intervals in the circumferential direction of the energy gathering ring and extend in the radial direction of the energy gathering ring, and a flow guide groove is formed between every two adjacent flow guide ribs. The density of the secondary air below the lower surface of the energy gathering ring is low, so that the secondary air floats upwards, according to the wall attachment effect, the secondary air flows to the combustor on the radial inner side of the energy gathering ring in the flow guide groove in the extending direction of the flow guide groove, and the secondary air is supplemented for sufficient combustion of the combustor. And the flow guide grooves can gather the secondary air and reduce outward diffusion of airflow, so that the hovering time of the secondary air is prolonged, the fuel gas and the heated secondary air are fully fused, the energy gathering effect of the energy gathering ring is improved, and the combustion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to an energy gathering ring and a cooker comprising the energy gathering ring. Background Art

[0002] Gas stoves refer to kitchen appliances that use gas fuels such as liquefied petroleum gas, artificial coal gas, and natural gas for direct fire heating. The pot support on traditional gas stoves mainly plays the role of supporting pots, and does not have the function of gathering energy and preventing heat from dissipating. As the gas and gas appliance industry has entered a period of rapid development, the safety measures of household gas stoves have been continuously strengthened, and the materials, functions and performance of stoves have been improved. With the advocacy of energy conservation and environmental protection, traditional pot supports can no longer meet the needs of energy conservation, so (energy-gathering ring) pot supports came into being.

[0003] Although a large number of energy-gathering ring pot brackets have appeared in the prior art, the energy-gathering effect of the energy-gathering ring pot brackets still has a lot of room for improvement. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect that the energy gathering effect of the energy gathering ring in the prior art is not good, and to provide an energy gathering ring and a stove including the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A energy gathering ring is used to be sleeved on the radial outer side of a fire cover of a stove. Along the radial outer side to the radial inner side of the energy gathering ring, the lower surface of the energy gathering ring is inclined from bottom to top. The lower surface of the energy gathering ring is provided with a plurality of guide ribs. The plurality of guide ribs are arranged at intervals along the circumferential direction of the energy gathering ring and extend along the radial direction of the energy gathering ring. A guide groove is formed between two adjacent guide ribs.

[0007] In this solution, a plurality of guide ribs are arranged on the lower surface of the energy-gathering ring to form a guide groove. The secondary air density below the lower surface of the energy-gathering ring is low, so it floats upward. According to the wall effect, the secondary air flows in the guide groove along the extension direction of the guide groove to the burner on the radial inner side of the energy-gathering ring, replenishing the secondary air for the burner to fully burn. The guide groove can gather the secondary air, reduce the outward diffusion of the airflow, thereby increasing the hovering time of the secondary air, allowing the gas and the heated secondary air to fully merge, improving the energy-gathering effect of the energy-gathering ring, and improving the combustion efficiency.

[0008] Preferably, the height of the guide ribs gradually decreases along the radial outer side to the radial inner side of the energy focusing ring.

[0009] In this scheme, the guide ribs are higher on the radial outer side, which can increase the amount of air adsorbed and gathered, and increase the suspended air. The guide ribs on the radial inner side are lower in height to prevent the guide ribs from interfering with the airflow outflowing to the burner. Because the radial inner burner burns, the air pressure decreases, which will have a suction effect on the radial outer side of the airflow, thereby improving the energy gathering effect of the energy gathering ring and improving the combustion efficiency. The height of the guide ribs on the radial outer side is higher than the height of the radial inner side, and a gathering cavity is formed below the lower surface of the energy gathering ring. The gathering cavity has a gathering effect on the secondary air flowing in, reduces the overflow of secondary air, improves the anti-interference ability, improves the energy gathering effect of the energy gathering ring, and improves the thermal efficiency.

[0010] Preferably, the guide rib extends from the radial outer edge of the lower surface to the radial inner edge of the lower surface.

[0011] In this scheme, the guide ribs extend from the radial outer edge of the lower surface of the energy focusing ring to the radial inner edge, which has a better guiding and gathering effect on the airflow. The entire process of the airflow moving on the lower surface of the energy focusing ring is located in the guide groove, which reduces the disturbance of the airflow and increases the anti-interference ability, thereby providing more air for combustion, improving the energy gathering effect of the energy focusing ring, and improving combustion efficiency.

[0012] Preferably, the upper surface of the energy focusing ring, the radial outer side surface of the energy focusing ring and the lower surface of the energy focusing ring are sequentially connected end to end to form the energy focusing ring;

[0013] Along the radial outer side to the radial inner side of the energy focusing ring, the upper surface of the energy focusing ring is inclined from top to bottom; the radial outer side surface of the energy focusing ring is an arc surface convex toward the direction away from the center of the energy focusing ring.

[0014] In this solution, the upper surface of the energy-gathering ring is inclined from top to bottom, so that the secondary air flows along the upper surface to the radial inner side of the energy-gathering ring under the Coanda effect, providing secondary air for the burner combustion. The secondary air passes through the upper and lower surfaces of the energy-gathering ring respectively, and meets at the junction of the upper surface extension surface and the lower surface extension surface to form a secondary air suspension zone, so that the secondary air and the fuel gas are fully mixed. The radial outer surface of the energy-gathering ring bulges outward, thereby forming an expansion section between the bottom surface of the pot and the upper half of the arc surface of the radial outer side surface of the energy-gathering ring. In the expansion section, the high-temperature flue gas will expand and increase the pressure, thereby increasing the convective heat transfer coefficient with the bottom of the pot, and improving the heat exchange effect with the bottom of the pot. Due to the Coanda effect of the secondary air, the secondary air will be close to the radial outer side surface and flow along the radial outer side surface, thereby increasing the amount of adsorbed secondary air. The energy-gathering effect of the energy-gathering ring is improved, and the combustion efficiency is improved.

[0015] Preferably, the upper surface and the lower surface are mirror-symmetrical with respect to the first plane;

[0016] Wherein, the first plane is parallel to the horizontal plane and passes through the center of the energy focusing ring.

[0017] In this scheme, the upper surface and the lower surface of the energy gathering ring are symmetrical, and the secondary air flowing along the upper surface and the secondary air flowing along the lower surface have the same flow velocity when they intersect. They are fully mixed in the secondary air hovering zone formed, which increases the hovering time of the secondary air and allows the secondary air and fuel gas to be fully mixed, thereby enhancing the energy gathering effect of the energy gathering ring and improving combustion efficiency.

[0018] Preferably, along the radial direction of the energy focusing ring, the distance between the end of the radial outer side surface of the energy focusing ring farthest from the center of the energy focusing ring and the end of the radial outer side surface of the energy focusing ring closest to the center of the energy focusing ring is greater than or equal to 15 mm.

[0019] In the present scheme, the width of the radial outer side surface is greater than or equal to 15 mm, ensuring a larger radial outer side surface so that more secondary air can be adsorbed on the radial outer side surface under the influence of the Coanda effect, thereby increasing the supply of secondary air, and when the width of the radial outer side surface is greater than or equal to 15 mm, the expansion section formed between the bottom surface of the cookware and the upper half arc surface of the radial outer side surface has a more obvious diffusion effect, which slows down the discharge speed of the high-temperature flue gas, so that the high-temperature flue gas can stay at the bottom of the cookware for a longer period of time, increase the temperature of the bottom of the cookware, and ultimately improve the thermal efficiency of the stove.

[0020] Preferably, along the radial direction of the energy focusing ring, the line connecting the end of the radial outer side surface of the energy focusing ring farthest from the center of the energy focusing ring and the end of the radial outer side surface of the energy focusing ring closest to the center of the energy focusing ring in the second plane is denoted as l, and the line l forms an angle α with the horizontal plane, 35°≤α≤65°;

[0021] The second plane is perpendicular to the horizontal plane and passes through the center of the energy focusing ring.

[0022] In this scheme, when the vertical height of the energy focusing ring is the same, if the angle is too large, it means that the width of the radial outer side surface is reduced and a good diffusion effect cannot be provided. If the angle is too small, the Coanda effect of the radial outer side surface will be weakened, and the secondary air adsorbed by the radial outer side surface will be reduced. Therefore, when the angle α is in the range of 35°-65°, it can balance the diffusion effect and the amount of secondary air adsorbed, thereby achieving a higher energy focusing effect and thermal efficiency.

[0023] Preferably, the plane where the upper surface is located and the line l form an angle β in the second plane, 80°≤β≤100°.

[0024] In this scheme, the size of β is related to the slope of the upper surface and the lower surface. The larger the β angle is, the smaller the slope of the upper surface and the lower surface is, and the smaller β is, the larger the slope of the upper surface and the lower surface is. The slope of the upper surface and the lower surface is adjusted by changing the angle of β. β is limited to between 80° and 100°, and the secondary air adsorbed by the radial outer side adheres to the upper surface and moves radially inward. If the angle is too large, the secondary air on the upper and lower surfaces is difficult to gather to form a secondary air hovering area. If the angle is too small, the adsorption effect on the secondary air is weakened, and the secondary air is easy to overflow, thereby weakening the energy gathering effect of the energy gathering ring.

[0025] A cooking appliance comprises the energy gathering ring as described above.

[0026] In this solution, a plurality of guide ribs are arranged on the lower surface of the energy-gathering ring to form a guide groove. The secondary air density below the lower surface of the energy-gathering ring is low, so it floats upward. According to the wall effect, the secondary air flows in the guide groove along the extension direction of the guide groove to the burner on the radial inner side of the energy-gathering ring, replenishing the secondary air for the burner to fully burn. The guide groove can gather the secondary air, reduce the outward diffusion of the airflow, thereby increasing the hovering time of the secondary air, making the gas and the heated secondary air fully merged, improving the energy-gathering effect of the energy-gathering ring, and improving the combustion efficiency.

[0027] Preferably, the stove also includes an inner ring fire cover, the energy gathering ring is concentrically sleeved on the radially outer side of the inner ring fire cover, the inner ring fire cover includes a fire outlet hole, and the boundary line between the extended surface of the upper surface and the extended surface of the lower surface is located above the fire outlet hole.

[0028] In the present scheme, in the secondary air hovering zone formed by the convergence of the secondary air on the upper surface and the lower surface, the gas that is not fully burned by the burner is ejected with the flame to form a gas-air mixing zone, and the ejected gas will rise upward due to its high temperature and low density. By limiting the intersection of the extended surfaces of the upper surface and the lower surface to be located above the fire outlet, the secondary air hovering zone is located in the upper position of the gas-air mixing zone, and is fully mixed and burned with the incompletely burned gas, thereby improving the energy gathering effect of the energy gathering ring and the thermal efficiency of the stove.

[0029] The positive progressive effect of the utility model is that a plurality of guide ribs are arranged on the lower surface of the energy gathering ring to form a guide groove. The secondary air density on the outer peripheral side of the energy gathering ring is lower and therefore floats upward. According to the wall attachment effect, the guide groove can gather the secondary air, and the guide ribs can reduce the outward diffusion of the airflow, thereby increasing the hovering time of the secondary air, allowing the fuel gas and the heated secondary air to fully merge, thereby improving the energy gathering effect of the energy gathering ring and improving the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional view of an energy-gathering ring according to an embodiment of the present utility model.

[0031] Figure 2 It is a front view of an energy-gathering ring according to an embodiment of the utility model.

[0032] Figure 3 It is a cross-sectional view of an energy-gathering ring along the AA direction according to an embodiment of the present invention.

[0033] Figure 4 This is a partial enlarged view of the B area of ​​the energy gathering ring according to an embodiment of the present invention.

[0034] Figure 5 This is a three-dimensional view of a cooker according to an embodiment of the present invention.

[0035] Figure 6 The figure is a top view of a cooker according to an embodiment of the present invention.

[0036] Figure 7 It is a cross-sectional view of a cooker along the CC direction according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] Energy Circle 100

[0039] Upper surface 101

[0040] Radially outer side surface 102

[0041] Lower surface 103

[0042] Guide rib 200

[0043] Diversion trough 201

[0044] Bump 202

[0045] Gathering cavity 203

[0046] Foot piece 300

[0047] Inner ring fire cover 400

[0048] Fire hole 401 DETAILED DESCRIPTION

[0049] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0050] like Figures 1 to 7 As shown, this embodiment discloses a cooker, including a burner and an energy-gathering ring 100. The energy-gathering ring 100 is sleeved on the radial outer side of the burner to support the cooker.

[0051] like Figure 3As shown, along the radial outer side to the radial inner side of the energy focusing ring 100, the lower surface 103 of the energy focusing ring 100 is inclined from bottom to top, and the lower surface 103 of the energy focusing ring 100 is provided with a plurality of guide ribs 200. The plurality of guide ribs 200 are arranged at intervals along the circumferential direction of the energy focusing ring 100 and extend along the radial direction of the energy focusing ring 100, and a guide groove 201 is formed between two adjacent guide ribs 200. A plurality of guide ribs 200 are arranged on the lower surface 103 of the energy focusing ring 100 to form a guide groove 201. The secondary air below the lower surface 103 of the energy focusing ring 100 has a higher temperature and a lower density, and thus floats upward. According to the wall attachment effect, the secondary air flows in the guide groove 201 along the extension direction of the guide groove 201 to the burner on the radial inner side of the energy focusing ring 100, so as to replenish the secondary air for full combustion of the burner. The guide groove 201 can gather the secondary air, and the guide ribs 200 can reduce the outward diffusion of the airflow, thereby increasing the hovering time of the secondary air, so that the fuel gas and the heated secondary air are fully integrated, thereby improving the energy gathering effect of the energy focusing ring 100 and improving the combustion efficiency.

[0052] like Figure 3 , Figure 4 As shown, the height of the guide rib 200 gradually decreases from the radial outer side to the radial inner side of the energy focusing ring 100. The guide rib 200 has a higher height on the radial outer side, which can increase the amount of air adsorbed and gathered, and increase the suspended air. The guide rib 200 on the radial inner side has a lower height to prevent the guide rib 200 from interfering with the airflow flowing out of the burner. Because the radial inner burner burns, the air pressure decreases, which will have a suction effect on the radial outer side of the airflow, thereby improving the energy gathering effect of the energy focusing ring 100 and improving the combustion efficiency. The height of the guide rib 200 on the radial outer side is higher than the height on the radial inner side. The gathering cavity 203 formed below the lower surface 103 of the energy focusing ring 100 has a gathering effect on the secondary air flowing in, reduces the overflow of the secondary air, improves the anti-interference ability, improves the energy gathering effect of the energy focusing ring 100, and improves the thermal efficiency.

[0053] like Figure 4 As shown, in the present embodiment, the lower surface 103 of the guide rib 200 has a certain curvature for enhancing the Coanda effect to absorb more secondary air. In other alternative embodiments, the radial cross-section of the guide rib 200 may also be a triangle, or other shapes, which may be selected according to the specific circumstances and are not particularly limited here.

[0054] like Figure 3 , Figure 4As shown, a protrusion 202 is provided on one end of the guide rib 200 close to the radial outer edge in this embodiment, and multiple protrusions 202 provided on multiple guide ribs 200 form a better gathering cavity 203 on the lower surface 103, which can gather the inflowing secondary air, reduce the overflow of secondary air, improve the anti-interference ability, improve the energy gathering effect of the energy gathering ring 100, and improve the thermal efficiency. The protrusion 202 in this embodiment is arc-shaped, and can absorb the secondary air nearby under the action of the Coanda effect. In other alternative embodiments, the shape of the protrusion 202 is selected according to the actual situation, and the protrusion 202 may not be provided.

[0055] like Figure 4 As shown, the guide rib 200 extends from the radial outer edge of the lower surface 103 to the radial inner edge of the lower surface 103, which has a better guiding and gathering effect on the airflow. The entire process of the airflow moving on the lower surface 103 of the energy focusing ring 100 is located in the guide groove 201, which reduces the disturbance of the airflow and increases the anti-interference ability, thereby providing more air for combustion, improving the energy focusing effect of the energy focusing ring 100, and improving the combustion efficiency.

[0056] like Figure 4 , Figure 7 As shown, the upper surface 101 of the energy focusing ring 100, the radial outer side surface 102 of the energy focusing ring 100 and the lower surface 103 of the energy focusing ring 100 are connected end to end in sequence to form the energy focusing ring 100; along the radial outer side to the radial inner side of the energy focusing ring 100, the upper surface 101 of the energy focusing ring 100 is tilted from top to bottom, so that the secondary air flows along the upper surface 101 to the radial inner side of the energy focusing ring 100 under the Coanda effect, providing secondary air for the burner combustion. The radial outer side surface 102 of the energy focusing ring 100 is an arc surface that bulges 202 in the direction away from the center of the energy focusing ring 100. Due to the Coanda effect of the secondary air, the secondary air will be close to the radial outer side surface 102 and flow along the radial outer side surface 102, thereby increasing the amount of secondary air adsorbed. The energy gathering effect of the energy focusing ring 100 is improved, and the combustion efficiency is improved.

[0057] Figure 7 As shown, the secondary air passes through the upper surface 101 and the lower surface 103 of the energy-gathering ring 100 respectively, and meets at the junction of the extension surface of the upper surface 101 and the extension surface of the lower surface 103 to form a secondary air suspension zone, so that the secondary air and the gas are fully mixed. The radial outer side surface 102 of the energy-gathering ring 100 bulges outward 202, so as to form an expansion section between the bottom surface of the pot and the upper half arc surface of the radial outer side surface 102 of the energy-gathering ring 100. In the expansion section, the high-temperature smoke will expand and increase the pressure, thereby increasing the convective heat transfer coefficient with the bottom of the pot and improving the heat exchange effect with the bottom of the pot.

[0058] In this embodiment, the joints between the upper surface 101, the lower surface 103 and the radial outer side surface 102 are all smooth, so that the airflow adheres to the surface of the energy focusing ring 100 without being disturbed, allowing the airflow to pass smoothly, thereby increasing the airflow and increasing combustion efficiency.

[0059] In this embodiment, the first plane and the second plane are as follows Figure 2 As shown, the first plane is a plane parallel to the horizontal plane and passing through the center of the energy focusing ring 100, and the second plane is perpendicular to the horizontal plane and passing through the center of the energy focusing ring 100. In this embodiment, the first plane is unique and the number of second planes is multiple. The horizontal and vertical in this article are both referenced to the placement position of the energy focusing ring 100 during normal use.

[0060] like Figure 4 , Figure 7 As shown, the upper surface 101 and the lower surface 103 are mirror-symmetrical relative to the first plane, and the upper surface 101 and the lower surface 103 of the energy gathering ring 100 are symmetrical. The secondary air flowing along the upper surface 101 and the secondary air flowing along the lower surface 103 have the same flow velocity when they intersect, and are fully mixed in the formed secondary air hovering area, which increases the hovering time of the secondary air and allows the secondary air and fuel gas to be fully mixed, thereby enhancing the energy gathering effect of the energy gathering ring 100 and improving the combustion efficiency.

[0061] like Figure 4 , Figure 7 As shown, along the radial direction of the energy gathering ring 100, the distance L between the end of the radial outer side surface 102 of the energy gathering ring 100 farthest from the center of the energy gathering ring 100 and the end of the radial outer side surface 102 of the energy gathering ring 100 closest to the center of the energy gathering ring 100 is greater than or equal to 15 mm. The width of the radial outer side surface 102 is greater than or equal to 15 mm, ensuring a larger radial outer side surface 102 so that more secondary air is adsorbed on the radial outer side surface 102 under the influence of the Coanda effect, thereby increasing the supply of secondary air, and when the width of the radial outer side surface 102 is greater than or equal to 15 mm, the expansion section formed between the bottom surface of the cookware and the upper half of the arc surface of the radial outer side surface 102 has a more obvious pressure diffusion effect, slowing down the discharge speed of the high-temperature smoke, so that the high-temperature smoke can stay at the bottom of the cookware for a longer period of time, increasing the temperature of the bottom of the cookware, and ultimately improving the thermal efficiency of the cooker.

[0062] like Figure 4 , Figure 7As shown, along the radial direction of the energy focusing ring 100, the line connecting the end of the radial outer side surface 102 of the energy focusing ring 100 farthest from the center of the energy focusing ring 100 and the end of the radial outer side surface 102 of the energy focusing ring 100 closest to the center of the energy focusing ring 100 in the second plane is l, and the line l forms an angle α with the horizontal plane, 35°≤α≤65°; when the vertical height of the energy focusing ring 100 is the same, if the angle α is greater than 65°, it means that the width of the radial outer side surface 102 is reduced and a better pressure diffusion effect cannot be provided. If the angle α is less than 35°, the Coanda effect of the radial outer side surface 102 will be weakened, and the secondary air adsorbed by the radial outer side surface 102 will be reduced. Therefore, when the angle α is in the range of 35°-65°, the pressure diffusion effect and the amount of adsorbed secondary air can be balanced, thereby achieving a higher energy focusing effect and thermal efficiency.

[0063] like Figure 4 , Figure 7 As shown, the size of β is related to the slope of the upper surface 101. The larger the angle β, the smaller the slope of the upper surface 101, and the smaller β, the larger the slope of the upper surface 101. By changing the angle β, the slope of the upper surface 101 is adjusted. And because the upper surface 101 and the lower surface 103 are mirror-symmetrical relative to the first plane, the absolute values ​​of the slopes of the upper surface 101 and the lower surface 103 are equal, so the slope of the lower surface 103 is also related to β and changes in the same direction as the slope of the upper surface 101. The plane where the upper surface 101 is located and the connecting line l form an angle β in the second plane, 80°≤β≤100°. β is limited between 80°-100°, and the secondary air adsorbed by the radial outer side 102 adheres to the upper surface 101 and moves radially inward. When β is greater than 100°, the secondary air on the upper surface 101 and the lower surface 103 is difficult to gather to form a secondary air hovering area. When β is less than 80°, the adsorption effect on the secondary air is weakened, and the secondary air is easy to overflow, thereby weakening the energy gathering effect of the energy gathering ring 100.

[0064] like Figure 5 As shown, the burner includes an inner ring fire cover 400, and the energy focusing ring 100 is concentrically sleeved on the radial outer side of the inner ring fire cover 400. The inner ring fire cover 400 includes a fire hole 401, and the boundary line between the extended surface of the upper surface 101 and the extended surface of the lower surface 103 is located above the fire hole 401.

[0065] like Figure 7As shown, in the secondary air hovering zone formed by the convergence of the secondary air of the upper surface 101 and the lower surface 103, the gas that is not fully burned by the burner is ejected from the fire hole 401 of the inner ring fire cover 400 along with the flame to form a gas-air mixing zone, and the ejected gas will rise upward due to its high temperature and low density. By limiting the intersection line of the extended surface of the upper surface 101 and the lower surface 103 to be located above the fire hole 401, the secondary air hovering zone is located at the upper position of the gas-air mixing zone, and is fully mixed and burned with the incompletely burned gas, thereby improving the energy gathering effect of the energy gathering ring 100 and the thermal efficiency of the stove.

[0066] like Figure 1 As shown, the energy-gathering ring 100 also includes foot pieces 300, and a plurality of foot pieces 300 are evenly arranged above the upper surface 101 along the circumference of the energy-gathering ring 100, and the foot pieces 300 extend toward the center of the energy-gathering ring 100 along the radial direction of the energy-gathering ring 100. The foot pieces 300 support the pot to prevent the pot from contacting the upper surface 101, and export the heat to the outside air, and also prevent the pot from obstructing the gas circulation to the greatest extent. In this embodiment, the number of foot pieces 300 is 4. In other alternative embodiments, the number of foot pieces 300 is selected according to actual conditions and is not particularly limited here.

[0067] like Figure 1 As shown, the energy-gathering ring 100 further includes a plurality of supporting feet, which are evenly arranged below the lower surface 103 along the circumference of the energy-gathering ring 100 to support the energy-gathering ring 100. This avoids affecting the secondary air flow and avoids the energy-gathering ring 100 being unstable when the bottom surface of the lower surface 103 is attached to the surface of the stove when there are foreign objects on the stove surface, thereby reducing the flatness requirements of the stove surface for placing the energy-gathering ring 100 and improving the user experience.

[0068] In this embodiment, the support foot and the foot piece 300 are integrally formed, thereby reducing manufacturing costs and installation difficulty. In other alternative implementations, they are arranged according to specific circumstances and are not limited here.

[0069] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0070] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An energy-gathering ring, used for being sleeved on the radial outer side of the fire cover of a stove, characterized in that: Along the radial outer side to the radial inner side of the energy focusing ring, the lower surface of the energy focusing ring is inclined from bottom to top, and a plurality of guide ribs are arranged on the lower surface of the energy focusing ring. The plurality of guide ribs are arranged at intervals along the circumferential direction of the energy focusing ring and extend along the radial direction of the energy focusing ring, and a guide groove is formed between two adjacent guide ribs.

2. The energy-gathering ring according to claim 1, characterized in that: The height of the guide ribs gradually decreases from the radial outer side to the radial inner side of the energy focusing ring.

3. The energy-gathering ring according to claim 1, characterized in that: The guide rib is extended from the radial outer edge of the lower surface to the radial inner edge of the lower surface.

4. The energy-gathering ring according to claim 1, characterized in that: The upper surface of the energy focusing ring, the radial outer side surface of the energy focusing ring and the lower surface of the energy focusing ring are sequentially connected end to end to form the energy focusing ring; Along the radial outer side to the radial inner side of the energy focusing ring, the upper surface of the energy focusing ring is inclined from top to bottom; the radial outer side surface of the energy focusing ring is an arc surface convex toward the direction away from the center of the energy focusing ring.

5. The energy-gathering ring according to claim 4, characterized in that: The upper surface and the lower surface are mirror-symmetrical with respect to the first plane; Wherein, the first plane is parallel to the horizontal plane and passes through the center of the energy focusing ring.

6. The energy-gathering ring according to claim 5, characterized in that: Along the radial direction of the energy focusing ring, the distance between the end of the radial outer side of the energy focusing ring farthest from the center of the energy focusing ring and the end of the radial outer side of the energy focusing ring closest to the center of the energy focusing ring is greater than or equal to 15 mm.

7. The energy-gathering ring according to claim 6, characterized in that: Along the radial direction of the energy focusing ring, the line connecting the end of the radial outer side surface of the energy focusing ring farthest from the center of the energy focusing ring and the end of the radial outer side surface of the energy focusing ring closest to the center of the energy focusing ring in the second plane is denoted as l, and the connecting line l forms an angle α with the horizontal plane, 35°≤α≤65°; The second plane is perpendicular to the horizontal plane and passes through the center of the energy focusing ring.

8. The energy-gathering ring according to claim 7, characterized in that: The plane where the upper surface is located and the line l form an angle β in the second plane, 80°≤β≤100°.

9. A cooking appliance, characterized in that: It comprises the energy gathering ring as described in any one of claims 1-8.

10. The cooker according to claim 9, characterized in that: The stove also includes an inner ring fire cover, the energy gathering ring is concentrically sleeved on the radially outer side of the inner ring fire cover, the inner ring fire cover includes a fire outlet hole, and the boundary line between the extended surface of the upper surface and the extended surface of the lower surface is located above the fire outlet hole.

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