Energy - concentrating disc pot rack and gas stove

Abstract

The present application provides a kind of energy-gathering disc pot rack and gas stove, it relates to the technical field of kitchen utensils, the energy-gathering disc pot rack includes energy-gathering disc body and support foot piece;Energy-gathering disc body is equipped with central through hole;Energy-gathering disc body is equipped with annular convex structure, the area between annular convex structure and the inner hole edge of central through hole forms secondary air preheating area.The gas stove includes energy-gathering disc pot rack.It relieves the technical problem that the existing gas stove exists in the combustion process, when the secondary air of lower temperature enters the central through hole of energy-gathering disc, there is diffusion to the gathering area of combustion heat energy air mass and heat exchange, reduces the temperature field of the gathering area of combustion heat energy air mass, so that the temperature of combustion flame is not high, causes heat energy loss, produces the technical problem of low combustion thermal efficiency, achieves the best effect of overall combustion condition, thereby improves the combustion thermal efficiency, and reduces the technical effect of CO exhaust emission.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to an energy-gathering disc cooker rack and gas stove. BACKGROUND

[0002] The gas stove is a necessary kitchen appliance for cooking in daily life. With the continuous development of society, the gas stove product is also constantly updated. In response to the call for energy saving and emission reduction, some manufacturers have developed gas stoves with energy-gathering disc cooker racks in order to pursue higher thermal efficiency. Among them, the energy-gathering disc cooker rack has single-layer, double-layer and multi-layer disc cooker racks, so that the high-temperature thermal energy gas cluster is gathered in the energy-gathering disc, the heat exchange between the high-temperature thermal energy gas cluster and the bottom of the pot is enhanced, and the heating efficiency is improved.

[0003] However, the structure design of the existing energy-gathering disc cooker rack (such as the setting of the secondary air supplement, the accommodation and preheating area, the setting of the combustion thermal energy gas cluster gathering area, the distance between the energy-gathering disc and the burner, and the angle setting with the fire cover hole, etc.) is not reasonable, so that when the secondary air with lower temperature enters the central through hole of the energy-gathering disc during the combustion process of the gas stove, it diffuses to the combustion thermal energy gas cluster gathering area and exchanges heat, which reduces the temperature field of the combustion thermal energy gas cluster gathering area, causes heat loss, and produces the problem of low combustion thermal efficiency. In addition, there is an imbalance in the heat exchange of the combustion thermal energy gas cluster to the bottom of the pot and the emission of flue gas, and the overall combustion condition does not reach the best effect, which will cause the energy-gathering effect to be reduced or the combustion to be insufficient, and the problem of excessive waste gas emission. SUMMARY

[0004] The purpose of the present application is to provide an energy-gathering disc cooker rack and gas stove to alleviate the technical problem in the prior art that when the secondary air with lower temperature enters the central through hole of the energy-gathering disc during the combustion process of the gas stove, it diffuses to the combustion thermal energy gas cluster gathering area and exchanges heat, which reduces the temperature field of the combustion thermal energy gas cluster gathering area, so that the combustion flame temperature is not high, causing heat loss and producing the problem of low combustion thermal efficiency.

[0005] In a first aspect, the present application provides an energy-gathering disc cooker rack, comprising: an energy-gathering disc body and a support leg piece arranged on the energy-gathering disc body and used for supporting a pot.

[0006] The energy-gathering disc body is provided with a central through hole, and the central through hole is arranged to have an inner diameter greater than the outer diameter of the burner, so that a secondary air supplement inlet can be formed between the two in the assembled state;

[0007] The energy-gathering disc body is provided with a ring-shaped protruding structure protruding from the upper surface thereof, and the area between the ring-shaped protruding structure and the inner hole edge of the central through hole forms a secondary air preheating area.

[0008] Further, the annular convex structure is a circumferential annular boss;

[0009] Two sides of the circumferential annular boss form the separately arranged secondary air preheating area and the combustion thermal energy air mass gathering area.

[0010] Further, the energy-gathering disc body comprises an upper disc and a lower disc, both of which are provided with coaxial inner holes to form the central through hole;

[0011] An annular cavity is formed between the upper disc and the lower disc;

[0012] The circumferential annular boss is arranged on the upper disc.

[0013] Further, the upper disc is sequentially formed with an inner circumferential annular face, the circumferential annular boss, an intermediate circumferential annular face, a circumferential annular fence face, and an outer circumferential annular face from inside to outside along the radial direction;

[0014] The inner circumferential annular face and the circumferential annular boss form the secondary air preheating area with the side wall face of the central through hole;

[0015] The circumferential annular boss, the intermediate circumferential annular face, and the circumferential annular fence face form the combustion thermal energy air mass gathering area with the side wall face of the central through hole away from the central through hole.

[0016] Further, the distance between the side wall face of the circumferential annular boss close to the central through hole and the outer diameter of the burner is D1, and the value range of D1 is 11mm-16mm;

[0017] And / or, the distance between the inner diameter of the central through hole and the outer diameter of the burner is D2, and the value range of D2 is 3.5mm-6mm;

[0018] And / or, the distance between the upper surface of the inner circumferential annular face and the lowest edge of the outlet of the outer ring fire hole of the fire cap is H1, and the value range of H1 is 6mm-10mm;

[0019] And / or, the distance between the upper end face of the circumferential annular boss and the lowest edge of the outlet of the outer ring fire hole of the fire cap is H2, and the value range of H2 is 0mm-3mm.

[0020] Further, the circumferential annular fence face is a bevel face;

[0021] The included angle between the circumferential annular fence face and the horizontal plane is A, the included angle between the central axis of the outer ring fire hole of the fire cap and the horizontal plane is B, and A is equal to B;

[0022] Or, the circumferential ring fence surface is arranged in parallel with the central axis of the fire cover outer ring fire hole.

[0023] Further, the inner hole edge of the upper layer disc is connected with the inner hole edge of the lower layer disc.

[0024] And / or, the outer edge of the upper layer disc is connected with the outer edge of the lower layer disc.

[0025] Further, the support foot piece is arranged on the upper layer disc and is fixed in a region inside the outer circumferential ring surface.

[0026] Further, the support foot piece is fixed on the circumferential ring fence surface.

[0027] Further, the upper surface of the support foot piece is higher than the outer circumferential ring surface, so that a combustion flue gas discharge channel is formed therebetween.

[0028] Further, the bottom surface of the lower layer disc gradually extends upward from outside to inside, so as to form a secondary air inlet channel with the cooktop panel.

[0029] Further, the bottom surface of the lower layer disc is provided with a bottom foot piece.

[0030] The bottom foot piece is a vertically arranged sheet structure.

[0031] Beneficial effects:

[0032] The energy-gathering disc pot support provided by the application comprises an energy-gathering disc body and a support foot piece, wherein the support foot piece is arranged on the energy-gathering disc body and can be used to support a pot; the energy-gathering disc body is provided with a central through hole, the central through hole is arranged to have an inner diameter greater than the outer diameter of a burner, so that a secondary air inlet can be formed between the two in an assembled state, and secondary air can enter through the secondary air inlet; at the same time, the energy-gathering disc body is provided with a ring-shaped protruding structure protruding from the upper surface thereof, and the region between the ring-shaped protruding structure and the inner hole edge of the central through hole forms a secondary air preheating region; when the gas stove is working, the secondary air can enter through the secondary air inlet and diffuse in the secondary air preheating region, and can be effectively preheated by the radiant heat energy of the flame and then supplemented at the root of the outer ring fire hole of the fire cover to participate in combustion, so as to improve the heat utilization rate, make the secondary air preheating effect more sufficient and the temperature higher, and further improve the flame temperature, so that the combustion heat efficiency is improved.

[0033] In a second aspect, the application provides a gas stove, comprising the energy-gathering disc pot support according to any one of the foregoing embodiments.

[0034] Beneficial effects:

[0035] The gas stove provided by the present application comprises the aforementioned energy-gathering disc pot support, and thus the technical advantages and effects that the gas stove can achieve also include the technical advantages and effects that the energy-gathering disc pot support can achieve, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0037] Figure 1 The exploded view of the energy-gathering disc body in the energy-gathering disc pot support provided by the embodiment of the present application;

[0038] Figure 2 The sectional view of the energy-gathering disc pot support provided by the embodiment of the present application;

[0039] Figure 3 The sectional view of the energy-gathering disc pot support and the burner in the assembled state provided by the embodiment of the present application;

[0040] Figure 4 The Figure 3 The local enlarged view at P shown in the figure.

[0041] Figure:

[0042] 10 - secondary air inlet; 20 - secondary air preheating area; 30 - combustion heat energy air mass gathering area; 40 - secondary air inlet channel;

[0043] 100 - energy-gathering disc body; 110 - central through hole; 120 - upper layer disc; 130 - lower layer disc; 140 - annular cavity; 121 - circumferential annular boss; 122 - inner circumferential annular surface; 123 - intermediate circumferential annular surface; 124 - circumferential annular fence surface; 125 - outer circumferential annular surface;

[0044] 200 - support foot piece;

[0045] 300 - bottom foot piece;

[0046] 400 - burner; 410 - fire cover outer ring fire hole. DETAILED DESCRIPTION

[0047] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0049] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0052] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Some embodiments of the present application will be described in detail with reference to the drawings. The following embodiments and features of the embodiments described below can be combined with each other in the case of no conflict.

[0054] Referring to Figures 1 to 3 , the present embodiment provides a concentrator pot rack, which comprises a concentrator body 100 and a support foot 200 arranged on the concentrator body 100 and used for supporting a pot; the concentrator body 100 is provided with a central through hole 110, the central through hole 110 is arranged to have an inner diameter greater than an outer diameter of a burner 400, so that a secondary air supplement port 10 can be formed between the two in an assembled state; the concentrator body 100 is provided with a ring-shaped protruding structure protruding from its upper surface, and a region between the ring-shaped protruding structure and an inner hole edge of the central through hole 110 forms a secondary air preheating area 20.

[0055] The concentrator pot rack provided by the present embodiment is provided with a support foot 200 arranged on the concentrator body 100 and used for supporting a pot; since the concentrator body 100 is provided with a central through hole 110 arranged to have an inner diameter greater than an outer diameter of a burner 400, a secondary air supplement port 10 can be formed between the two in an assembled state, and secondary air can enter through the secondary air supplement port 10; at the same time, since the concentrator body 100 is provided with a ring-shaped protruding structure protruding from its upper surface, a region between the ring-shaped protruding structure and an inner hole edge of the central through hole 110 forms a secondary air preheating area 20, when the gas stove is working, secondary air can enter through the secondary air supplement port 10 and diffuse in the secondary air preheating area 20, and at the same time, the radiant heat energy of the flame can be effectively utilized to preheat and supplement the combustion at the root of the outer ring flame hole 410 of the flame cap, thereby improving the heat utilization rate, making the secondary air preheating effect more sufficient and the temperature higher, and further improving the flame temperature and the combustion heat efficiency.

[0056] Specifically, the central through hole 110 of the concentrator body 100 has a diameter greater than the outer diameter of the burner 400 and is sleeved on the outer peripheral side of the burner 400, that is, the inner hole edge of the central through hole 110 and the outer peripheral side edge of the burner 400 are arranged with a certain distance, so that a circumferential annular secondary air supplement port 10 is formed, ensuring the supplement of secondary air required for combustion and making the combustion more sufficient.

[0057] In the present embodiment, the secondary air preheating area 20 is arranged in an "L" shape, and the ring-shaped protruding structure is arranged close to the central through hole 110.

[0058] Further, referring to Figure 2 and Figure 3 , the ring-shaped protruding structure is a circumferential annular boss 121, and the two sides of the circumferential annular boss 121 form separately arranged secondary air preheating areas 20 and combustion heat energy air mass gathering areas 30.

[0059] The energy focusing disc body 100 can be a single-layer, double-layer or triple-layer structure.

[0060] In this embodiment, the energy focusing disc body 100 is a double-layer structure, which includes an upper disc 120 and a lower disc 130. Both the upper disc 120 and the lower disc 130 are provided with coaxial inner holes to form a central through hole 110. An annular cavity 140 is formed between the upper disc 120 and the lower disc 130. A circumferential annular boss 121 is arranged on the upper disc 120.

[0061] The upper disc 120 is an annular concave disc as a whole, and an inner hole is formed in the middle of the upper disc 120. The lower disc 130 is an annular deep concave disc as a whole, and an inner hole is also formed in the middle of the lower disc 130. The upper surface of the upper disc 120 is low at the edge of the inner hole and high at the outer edge, which is conducive to the gathering of the combustion heat energy group and can slow down the flow rate of the flue gas, prolong the heat exchange time with the pot bottom, and effectively improve the combustion heat efficiency.

[0062] Specifically, the upper disc 120 is sequentially formed, along the radial direction, from inside to outside, into an inner circumferential annular surface 122, the circumferential annular boss 121, a middle circumferential annular surface 123, a circumferential annular fence surface 124 and an outer circumferential annular surface 125. The inner circumferential annular surface 122 and the circumferential annular boss 121 surround a secondary air preheating area 20 on the side wall surface close to the central through hole 110. The circumferential annular boss 121, the middle circumferential annular surface 123 and the circumferential annular fence surface 124 surround a combustion heat energy group gathering area 30 on the side wall surface away from the central through hole 110.

[0063] In order to better accommodate and preheat the secondary air, and at the same time better supplement the root of the outer ring fire hole 410 of the fire cap with an appropriate amount of secondary air to make the combustion more sufficient, with reference to Figure 4 The distance between the side wall surface of the circumferential annular boss 121 close to the central through hole 110 and the outer diameter of the burner 400 is D1, and the value of D1 is in the range of 11mm-16mm. Exemplarily, the value of D1 can be 11mm, 12mm, 13mm, 14mm, 15mm or 16mm. The distance between the inner diameter of the central through hole 110 and the outer diameter of the burner 400 is D2, and the value of D2 is in the range of 3.5mm-6mm. Exemplarily, the value of D2 can be 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm or 6mm. The distance between the upper surface of the inner circumferential annular surface 122 and the lowest edge of the outlet of the outer ring fire hole 410 of the fire cap is H1, and the value of H1 is in the range of 6mm-10mm. Exemplarily, the value of H1 can be 6mm, 7mm, 8mm, 9mm or 10mm.

[0064] In addition, in order to avoid the problem that the secondary air in the secondary air preheating area 20 enters the combustion heat energy cluster area 30 and exchanges heat so as to reduce the temperature of the combustion heat energy cluster area and cause heat loss, and to overcome the problem that the circumferential annular boss 121 is burned by the flame, a distance H2 between the upper end surface of the circumferential annular boss 121 and the lowest edge of the outlet of the outer ring fire hole 410 of the fire cap is provided, and the distance H2 is in the range of 0mm to 3mm. For example, the distance H2 can be 0mm, 1mm, 2mm or 3mm.

[0065] The combustion heat energy cluster area 30 is concave and circumferential annular, and the combination of the upper disc 120 and the lower disc 130 is surrounded by the air insulation layer on three sides, which is beneficial to the clustering of the combustion heat energy cluster and has a better insulation effect.

[0066] Further, in order to balance the heat exchange of the combustion heat energy cluster to the pot bottom and the flue gas emission, and to achieve the best effect of the overall combustion condition, referring to Figure 3 The circumferential annular fence surface 124 is inclined, and the angle between the circumferential annular fence surface 124 and the horizontal plane is A, and the angle between the central axis of the outer ring fire hole 410 of the fire cap and the horizontal plane is B, A is equal to B, or the circumferential annular fence surface 124 is parallel to the central axis of the outer ring fire hole 410 of the fire cap.

[0067] It should be noted that if the angle A is too large and the angle B is too small, the flame of the outer ring fire hole 410 of the fire cap will burn the circumferential annular fence surface 124, which will affect the supplement of the secondary air, the combustion will not be sufficient, and the exhaust emission will be excessive; if the angle A is too small and the angle B is too large, the energy gathering effect of the energy gathering disc will be reduced; the angle A is equal to the angle B, which can balance the heat exchange of the combustion heat energy cluster to the pot bottom and the flue gas emission, achieve the best effect of the overall combustion condition, improve the combustion heat efficiency and reduce the emission of CO exhaust gas.

[0068] In the embodiment, the inner circumferential annular surface 122, the intermediate circumferential annular surface 123 and the upper end surface of the circumferential annular boss 121 can be flat, arc or inclined; the circumferential annular fence surface 124 can be inclined, arc or wavy; the side wall surface of the circumferential annular boss 121 close to the center can be vertical, inclined or arc; and the side wall surface of the circumferential annular boss 121 away from the center can be inclined, vertical or arc.

[0069] On the basis of the above embodiment, referring to Figure 2The inner hole edge of the upper layer disc 120 is connected with the inner hole edge of the lower layer disc 130 in a fit manner; and the outer edge of the upper layer disc 120 is connected with the outer edge of the lower layer disc 130 in a fit manner.

[0070] Specifically, the upper layer disc 120 is located above the lower layer disc 130, the inner hole edge of the upper layer disc 120 is connected with the inner hole edge of the lower layer disc 130 in a fit manner, and the outer edge of the upper layer disc 120 is connected with the outer edge of the lower layer disc 130 in a fit manner. The inner hole edge and the outer edge are connected in a fit manner by welding sealing process or can be connected in a fit manner by a combination of rolling edge process, so that the annular cavity 140 is formed between the upper layer disc 120 and the lower layer disc 130, the annular cavity 140 is filled with air, and the annular cavity 140 can play a better heat insulation effect on the energy collecting disc pot by using the characteristic that the heat conduction performance of air is worse than that of metal, thereby reducing heat conduction loss. If the inner hole edge and the outer edge are connected in a fit manner by welding sealing process, the annular cavity 140 is sealed, and vacuumization can also be used to achieve a better heat insulation effect.

[0071] The support foot piece 200 is arranged on the upper layer disc 120 and is fixed at a position inside the outer circumferential annular surface 125, that is, an embedded structure. In this way, the support foot piece 200 is less likely to be in contact with external cold air, so that the combustion heat energy absorbed by the support foot piece 200 can be conducted to the pot bottom, thereby reducing heat loss and effectively improving the utilization rate of combustion heat energy.

[0072] Specifically, the support foot piece 200 is fixed on the circumferential annular fence surface 124.

[0073] Further, the upper surface of the support foot piece 200 is higher than the outer circumferential annular surface 125, that is, a combustion flue gas discharge channel is formed between the outer circumferential annular surface 125 and the upper surface of the support foot piece 200, thereby ensuring the discharge of combustion flue gas.

[0074] Referring to Figure 3 The bottom surface of the lower layer disc 130 extends upward from outside to inside in a gradually inclined manner, so as to form a secondary air inlet channel 40 with the cooktop panel, thereby facilitating the smooth entry of secondary air and having a directional flow guiding effect.

[0075] Please continue to refer to Figure 3 The bottom surface of the lower layer disc 130 is provided with a bottom foot piece 300; and the bottom foot piece 300 is a vertically arranged sheet structure.

[0076] The bottom foot piece 300 is a vertically arranged sheet structure and is arranged at the bottom of the lower layer disc 130, and the bottom foot piece 300 extends in a radial direction, so as to reduce the resistance of the secondary air when entering, to make the supply of secondary air for combustion more smooth, and to ensure more sufficient combustion.

[0077] In summary, the energy-gathering disc pot rack of the embodiment realizes the relative separation of the secondary air preheating area 20 and the combustion heat energy cluster gathering area 30. On the one hand, the secondary air required for combustion is controlled in an appropriate amount, the preheating effect of the secondary air is strengthened, and the heat exchange between the secondary air and the combustion heat energy cluster is avoided to cause the heat loss problem, thereby reducing the heat loss and improving the heat utilization rate. On the other hand, the combustion heat energy cluster is gathered and better heat insulation effect is achieved, the high-temperature state is maintained in the combustion heat energy cluster gathering area 30, the temperature field of the heat energy cluster is enhanced, the combustion flame temperature is improved, and the combustion heat efficiency is effectively improved. In addition, the angle of the circumferential fence surface 124 of the energy-gathering disc body 100 is equal to the angle of the outer ring fire hole 410 of the fire cover, which can balance the heat exchange of the combustion heat energy cluster with the pot bottom and the flue gas emission, realize the best effect of the overall combustion condition, improve the combustion heat efficiency, and reduce the emission of CO waste gas.

[0078] The embodiment also provides a gas stove. The gas stove comprises the energy-gathering disc pot rack. The gas stove provided by the embodiment comprises the energy-gathering disc pot rack, and therefore the technical advantages and effects that can be achieved by the gas stove are the same as those that can be achieved by the energy-gathering disc pot rack, which will not be described herein again.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A shaped charge pan rack characterized by, The utility model relates to a kind of burner, including: The energy-gathering disc body (100) and the support blade (200) for supporting utensil are arranged in the energy-gathering disc body (100) and are used to support; The energy-gathering disc body (100) is equipped with central through hole (110), the central through hole (110) is set to its inner diameter is greater than the outer diameter of burner (400), so that in assembled state, the distance between the two can form secondary air inlet (10); The energy-gathering disc body (100) is equipped with annular protruding structure protruding from its upper surface, the area between the annular protruding structure and the inner hole edge of the central through hole (110) forms secondary air preheating area (20); The energy-gathering disc body (100) includes upper layer disc (120), and the annular protruding structure is the circumferential annular boss (121) arranged in the upper layer disc (120); The upper layer disc (120) is sequentially formed from inside to outside along radial direction inner circumferential annular face (122), the circumferential annular boss (121), intermediate circumferential annular face (123), circumferential annular fence face (124) and outer circumferential annular face (125);Wherein, the inner circumferential annular face (122) and the circumferential annular boss (121) are close to the side wall surface of the central through hole (110) and enclose the secondary air preheating area (20);The circumferential annular boss (121) is away from the side wall surface of the central through hole (110), the intermediate circumferential annular face (123) and the circumferential annular fence face (124) and enclose combustion heat energy air mass gathering area (30); The circumferential annular fence face (124) is inclined surface;Wherein: the included angle between the circumferential annular fence face (124) and horizontal plane is A, the included angle between the central axis of outer ring fire hole (410) of fire cover and horizontal plane is B, and the A is equal to the B;Or, the circumferential annular fence face (124) is parallelly arranged with the central axis of outer ring fire hole (410) of fire cover; The distance between the circumferential annular boss (121) close to the side wall surface of the central through hole (110) and the outer diameter of burner (400) is D1, and the D1 is in the range of 11mm~16mm;The distance between the inner diameter of the central through hole (110) and the outer diameter of burner (400) is D2, and the D2 is in the range of 3.5mm~6mm;The distance between the upper surface of the inner circumferential annular face (122) and the lowest edge of the outlet of outer ring fire hole (410) of fire cover is H1, and the H1 is in the range of 6mm~10mm;The distance between the upper end surface of the circumferential annular boss (121) and the lowest edge of the outlet of outer ring fire hole (410) of fire cover is H2, and the H2 is in the range of 0mm~3mm.

2. The focused cup pot rack of claim 1, wherein, The energy-gathering disc body (100) further includes lower layer disc (130), and the upper layer disc (120) and the lower layer disc (130) are both equipped with coaxial inner hole to form the central through hole (110);The annular cavity (140) is enclosed between the upper layer disc (120) and the lower layer disc (130).

3. The focused cup pot rack of claim 2, wherein, The inner hole edge of the upper layer disc (120) is connected with the inner hole edge of the lower layer disc (130) in a fit manner. And / or, the outer edge of the upper layer disc (120) is connected with the outer edge of the lower layer disc (130) in a fit manner.

4. The focused cup pot rack of claim 1, wherein, The support foot piece (200) is arranged on the upper layer disc (120) and is fixed at a position inside the outer circumferential annular surface (125).

5. The focused disk pot rack of claim 4, wherein, The support foot piece (200) is fixed on the circumferential annular fence surface (124).

6. The focused disk pot rack of claim 4 wherein, The upper surface of the support foot piece (200) is higher than the outer circumferential annular surface (125), so that a combustion flue gas discharge channel is formed between the two.

7. The focused disk pot rack of claim 2 wherein, The bottom surface of the lower layer disc (130) gradually extends upward from outside to inside, so as to form a secondary air inlet channel (40) with a cooktop panel.

8. The focused disk pot rack of claim 2, wherein, The bottom surface of the lower layer disc (130) is provided with a bottom foot piece (300). The bottom foot piece (300) is a vertically arranged sheet structure.

9. Gas hob, characterized in that The application further provides a burner as claimed in any one of claims 1-8. The application further provides a burner as claimed in any one of claims 1-8.

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