CN219389833U - Energy-gathering cover assembly and gas stove - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses an energy gathering cover assembly and a gas cooker. The energy concentrating cap assembly includes: a first energy concentrating cap; the second energy gathering cover is positioned below the first energy gathering cover; the top of the outer edge of the second energy gathering cover is provided with a plurality of convex edges, and the convex edges are sequentially arranged at intervals along the circumferential direction of the second energy gathering cover; the convex edge extends upwards, and the lower wall surface of the first energy gathering cover is abutted with the upper wall surface of the convex edge. The outer edges of the first energy gathering cover and the second energy gathering cover are connected through a plurality of convex edges, that is, the two energy gathering covers are not in complete surface-to-surface contact, so that the contact area of the two energy gathering covers is reduced while the connection of the two energy gathering covers is ensured, and the heat conduction between the two energy gathering covers can be further reduced.

Description

Energy-gathering cover assembly and gas stove

Technical Field

The application relates to the technical field of gas cookers, for example, to a energy gathering cover assembly and a gas cooker.

Background

At present, the heat efficiency (the ratio of the heat actually absorbed by the cooker to the heat generated by the combustion of the gas) of the household gas cooker is generally low and is about 63-65%. The power of the household gas stove is generally 4.2KW, the power obtained by actual cooking of a user is 4.2 x 63% =2.6 KW, the heat obtained by a cooker during cooking of the user is too low to meet the requirement of Chinese type stir-frying on firepower, and therefore, an additional heat energy adding device is needed to improve the thermal efficiency of the gas stove.

In the related art, the energy-gathering cover of the gas stove can adopt a single-layer metal sheet mode to separate high-temperature flame and smoke from the secondary air channel at the bottom, and meanwhile, the energy-gathering cover adopts a concave structure to increase the lifting time of the high-temperature smoke, so that the high-temperature smoke is subjected to secondary combustion and heat exchange in the energy-gathering cover. Meanwhile, the concave surface of the energy gathering cover can also perform radiation heat exchange on the bottom of the pot after being heated. Or the energy gathering cover is of a double-layer structure, and theoretically, the heat transfer between the upper layer and the lower layer is reduced by using air between the two layers.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

when the gas stove in the related art adopts the double-layer energy gathering cover, the plurality of energy gathering covers generally adopt a surface-to-surface connection mode, so that heat of the upper energy gathering cover can be transferred to the lower energy gathering cover more, the lower energy gathering cover can be transferred to other parts below, the lower energy gathering cover or other parts exchange heat with surrounding air more after being heated, and the effect of improving the effect of the gas stove is not obvious.

It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a energy gathering cover assembly and a gas stove, so as to reduce heat transfer of a lower energy gathering cover and improve energy efficiency of the gas stove.

Embodiments of the present disclosure provide a energy concentrating cap assembly comprising: a first energy concentrating cap; the second energy gathering cover is positioned below the first energy gathering cover; the top of the outer edge of the second energy gathering cover is provided with a plurality of convex edges, and the convex edges are sequentially arranged at intervals along the circumferential direction of the second energy gathering cover; the convex edge extends upwards, and the lower wall surface of the first energy gathering cover is abutted with the upper wall surface of the convex edge.

Optionally, the first energy concentrating cover includes: a first horizontal segment; a first vertical section, one end of which is connected to the outer end of the first horizontal section and extends upwards along the direction from inside to outside; the first hem is connected with the other end of the first vertical section and extends towards the direction deviating from the first horizontal section, and the lower wall surface of the first hem is abutted with the upper wall surface of the convex edge.

Optionally, the second energy concentrating cover includes: a second horizontal segment; a second vertical section, one end of which is connected to the outer end of the second horizontal section and extends upwards along the direction from inside to outside; the convex edge is arranged at the other end of the second vertical section and extends upwards, and the outer edge of the second energy gathering cover comprises the second vertical section.

Optionally, the first energy gathering cover and the second energy gathering cover are both annular, and a first gap exists between the inner end of the first energy gathering cover and the inner end of the second energy gathering cover, so that the inner end of the first energy gathering cover is not contacted with the inner end of the second energy gathering cover.

Optionally, the energy concentrating cap assembly further comprises: the third energy gathering cover is positioned above the first energy gathering cover, and the lower wall surface of the outer edge of the third energy gathering cover is abutted with the upper wall surface of the first folded edge.

Optionally, the third energy concentrating cover includes: a third horizontal segment; a third vertical section, one end of which is connected with the inner end of the third horizontal section and extends upwards along the direction from inside to outside; the second folded edge is connected with the other end of the third vertical section and extends towards the direction away from the third horizontal section, and the lower surface of the second folded edge is abutted with the upper surface of the first folded edge; and the flanging is connected with the second flanging and extends downwards to the lower part of the convex edge.

Optionally, the third energy concentrating cover is annular, and a second gap exists between the inner end of the third energy concentrating cover and the inner end of the first energy concentrating cover, so that the inner end of the third energy concentrating cover is not in contact with the inner end of the first energy concentrating cover.

Optionally, the energy concentrating cap assembly further comprises: the first heat insulation piece is arranged between the lower wall surface of the outer edge of the third energy gathering cover and the upper wall surface of the outer edge of the first energy gathering cover; and/or, the first energy gathering cover and the third energy gathering cover enclose a first cavity, and the first energy gathering cover and the second energy gathering cover enclose a second cavity, wherein the energy gathering cover assembly further comprises: and the heat insulation material is arranged in the first cavity and/or the second cavity.

Optionally, the energy concentrating cap further comprises: and the second heat insulation piece is positioned between the lower wall surface of the first energy gathering cover and the upper wall surface of the convex edge.

Embodiments of the present disclosure also provide a gas cooker comprising a energy concentrating hood assembly as described in any of the above embodiments.

The energy concentrating cover assembly and the gas stove provided by the embodiment of the disclosure can realize the following technical effects:

the outer edges of the first energy gathering cover and the second energy gathering cover are connected through a plurality of convex edges, that is, the two energy gathering covers are not in complete surface-to-surface contact, so that the contact area of the two energy gathering covers is reduced while the connection of the two energy gathering covers is ensured, the heat conduction between the two energy gathering covers can be further reduced, the heat exchange between the energy gathering covers below and other parts below the energy gathering covers and the outside is reduced, and the energy efficiency of the gas stove is further improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic structural view of a gas cooker according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional structure of a gas range according to an embodiment of the present disclosure;

FIG. 3 is an enlarged schematic view of the portion A of FIG. 2;

FIG. 4 is a schematic view of an exploded construction of a pawl, sleeve and foot provided in accordance with an embodiment of the present disclosure;

fig. 5 is another cross-sectional structure schematic view of a gas cooker provided in an embodiment of the present disclosure;

FIG. 6 is an enlarged schematic view of the portion B of FIG. 5;

FIG. 7 is an enlarged schematic view of the portion C of FIG. 5;

FIG. 8 is a schematic view of the structure of a lower housing provided by an embodiment of the present disclosure;

FIG. 9 is a schematic view of the structure of an upper housing provided in an embodiment of the present disclosure;

fig. 10 is a schematic view of a partial structure of a focus cage provided by an embodiment of the present disclosure.

Reference numerals:

1. a gas range; 11. a third energy concentrating cap; 111. a first wall section; 112. a second wall section; 113. an outer edge; 114. a fifth wall section; 115. a third horizontal segment; 116. a third vertical section; 117. a second flanging; 118. flanging; 119. a protrusion; 1191. a vortex-holding cavity; 1192. a channel; 1193. a third wall section; 1194. a fourth wall section; 1195. an air passage; 12. a first energy concentrating cap; 121. a second protrusion; 122. a first horizontal segment; 123. a first vertical section; 124. a first hem; 125. a first cavity; 126. a second cavity; 13. a second energy concentrating cap; 131. a first protrusion; 132. a convex edge; 133. a second horizontal segment; 134. a second vertical section; 2. a supporting claw; 3. a sleeve; 31. a boss; 4. a footing; 41. a groove; 42. a limit part; 5. a fire cover; 51. a fire hole; 52. fire-avoiding part.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 5 to 8, the embodiment of the present disclosure provides a energy concentrating cover assembly, which includes a first energy concentrating cover 12 and a second energy concentrating cover 13, the second energy concentrating cover 13 is located below the first energy concentrating cover 12, wherein a plurality of protrusions 119 are configured at the top of an outer edge 113 of the second energy concentrating cover 13, and the plurality of protrusions 119 are sequentially spaced apart along the circumferential direction of the second energy concentrating cover 13; wherein the protrusion 119 extends upward, and the lower wall surface of the first energy concentrating cover 12 abuts against the upper wall surface of the protrusion 119.

In this embodiment, the two energy gathering covers are not in complete surface-to-surface contact, so that the contact area of the two energy gathering covers is reduced while the connection of the two energy gathering covers is ensured, and then the heat conduction between the two energy gathering covers can be reduced, the heat exchange between the energy gathering covers below and other components below the energy gathering covers and the outside is reduced, and then the energy efficiency of the gas stove 1 is improved.

For convenience of description, the inner and outer directions of the gas range are shown in fig. 2 and 5.

Optionally, the first energy concentrating cover 12 is annular, the first energy concentrating cover 12 includes a first horizontal section 122, a first vertical section 123 and a first fold 124, one end of the first vertical section 123 is connected to the outer end of the first horizontal section 122, and the first vertical section 123 extends upwards along the direction from inside to outside; the first folded edge 124 is connected to the other end of the first vertical section 123 and extends in a direction away from the first horizontal section 122, and a lower wall surface of the first folded edge 124 abuts against an upper wall surface of the flange 132.

In this embodiment, the first horizontal section 122 of the first energy concentrating cover 12 extends the first energy concentrating cover 12 in a radial direction, and the first vertical section 123 extends upwards in an inside-out direction, so that the volume of the first cavity 125 between the third energy concentrating cover 11 and the first energy concentrating cover 12 can be increased, and the air heat insulation effect between the third energy concentrating cover 11 and the first energy concentrating cover 12 can be further improved. The first fold 124 is connected to the other end of the first vertical section 123 and extends in a direction away from the first horizontal section 122 so that the first fold 124 can cooperate with the convex edge 132 of the second energy concentrating cover 13 to reduce the contact area between the first energy concentrating cover 12 and the second energy concentrating cover 13 and thereby reduce the heat transfer therebetween.

Optionally, the first flange 124 extends in a horizontal direction to facilitate engagement of the first flange 124 with the flange 132.

Optionally, the second energy concentrating cover 13 includes a second horizontal section 133 and a second vertical section 134, and one end of the second vertical section 134 is connected to an outer end of the second horizontal section 133 and extends upward; wherein the convex edge 132 is disposed at the other end of the second vertical section 134 and extends upward, and the outer edge 113 of the second energy concentrating cover 13 includes the second vertical section 134.

In this embodiment, the second horizontal segment 133 of the second energy concentrating cover 13 and the first horizontal segment 122 of the first energy concentrating cover 12 form the second cavity 126, and the second vertical segment 134 can increase the height space of the second cavity 126, so as to increase the air amount between the first energy concentrating cover 12 and the second energy concentrating cover 13, and reduce the heat conduction between the first energy concentrating cover 12 and the second energy concentrating cover 13.

Alternatively, as shown in fig. 7, the first and second energy accumulating covers 12 and 13 are each ring-shaped, and a first gap exists between the inner end portions of the first and second energy accumulating covers 12 and 13 so that the inner end portions of the first and second energy accumulating covers 12 and 13 do not contact.

In this embodiment, the first energy concentrating cover 12 and the second energy concentrating cover 13 are only contacted with the first folded edge 124 by the convex edge 132 at the outer end, and the inner end of the first energy concentrating cover 12 and the inner end of the second energy concentrating cover 13 are not contacted, so that heat conduction does not occur at the inner end of the first energy concentrating cover 12 and the second energy concentrating cover 13, and heat conduction between the first energy concentrating cover 12 and the second energy concentrating cover 13 is further reduced.

Optionally, the lower wall of the outer edge 113 of the third energy concentrating cover 11 abuts against the upper wall of the first fold 124.

In this embodiment, the third energy concentrating cover 11 is in surface contact with the first energy concentrating cover 12, so that the connection stability of the third energy concentrating cover 11 and the first energy concentrating cover 12 can be improved.

Optionally, the third energy concentrating cap 11 is also annular, and a second gap exists between the inner end of the third energy concentrating cap 11 and the inner end of the first energy concentrating cap 12.

In this embodiment, the outer ends of the third energy concentrating cover 11 and the first energy concentrating cover 12 are abutted, and the inner ends of the two are not contacted, so that heat conduction between the inner ends of the third energy concentrating cover 11 and the first energy concentrating cover 12 can be avoided, and the heat transferred downwards by the third energy concentrating cover 11 is further reduced.

Optionally, the third energy concentrating cover 11 includes a third horizontal section 115, a third vertical section 116, a second flange 117, and a flange 118, one end of the third vertical section 116 is connected to an inner end of the third horizontal section 115, and the third vertical section 116 extends upward in an inside-out direction; the second folded edge 117 is connected to the other end of the third vertical section 116, extends in a direction away from the third horizontal section 115, and the lower surface of the second folded edge 117 abuts against the upper surface of the first folded edge 124; the flange 118 is connected to the second flange 117, and the flange 118 extends downwardly below the flange 132.

In this embodiment, the third horizontal segment 115 and the third vertical segment 116 enable the third energy-gathering cover 11 to form a concave structure, and the concave structure enables the third energy-gathering cover 11 to reside in the flue gas, so as to improve the residence time of the high-temperature flue gas, and further enable the high-temperature flue gas to perform secondary heat exchange with the cookware. The second flange 117 is adapted to abut the first flange 124 to effect a connection between the third energy concentrating shield 11 and the first energy concentrating shield 12. The third energy-gathering cover 11 is further provided with a flanging 118 structure, the flanging 118 structure extends downwards to the lower side of the convex edge 132, and here, as the first energy-gathering cover 12 and the second energy-gathering cover 13 are abutted by the convex edge 132 arranged at a plurality of intervals, gaps exist between the first energy-gathering cover 12 and the second energy-gathering cover 13 at positions without the convex edge 132, and the flanging 118 can shield the gaps between the first energy-gathering cover 12 and the second energy-gathering cover 13, so that soup, greasy dirt and the like are prevented from entering the second cavity 126.

Optionally, the second flange 117 is matched to the first flange 124, that is, the second flange 117 is identical or similar in shape, size, etc. to the first flange 124 to achieve surface-to-surface contact of the first flange 124 with the second flange 117. Illustratively, the second flange 117 also extends in a horizontal direction.

Optionally, the energy concentrating shield assembly further comprises a first heat shield arranged between the lower wall of the outer rim 113 of the third energy concentrating shield 11 and the upper wall of the outer rim 113 of the first energy concentrating shield 12.

In this embodiment, the first heat insulator is provided at the contact portion between the first energy concentrating cover 12 and the second energy concentrating cover 13, so that the heat conduction between the third energy concentrating cover 11 and the first energy concentrating cover 12 can be further reduced.

Optionally, as shown in fig. 5, the first energy accumulating cover 12 and the third energy accumulating cover 11 enclose a first cavity 125, the first energy accumulating cover 12 and the second energy accumulating cover 13 enclose a second cavity 126, and a heat insulating material is disposed in the first cavity 125 and/or the second cavity 126.

In the embodiment of the disclosure, the first cavity 125 and/or the second cavity 126 are filled with the heat insulating material, so that the heat insulating efficiency of the first cavity 125 and the second cavity 126 can be improved, and the heat conduction among the third energy concentrating cover 11, the first energy concentrating cover 12 and the second energy concentrating cover 13 can be further reduced.

Alternatively, the insulating material is a material capable of reducing thermal conductivity, such as an inorganic insulating material, a glass fiber wool board or mat, a Mao Ningjiao mat, or the like.

Optionally, the gas range 1 further comprises a second heat shield located between the lower wall of the first energy concentrating cover 12 and the upper wall of the protrusion 119.

In this embodiment, the second heat insulating member is disposed at the connection position between the first energy concentrating cover 12 and the second energy concentrating cover 13, so that the heat conduction between the first energy concentrating cover 12 and the second energy concentrating cover 13 can be further reduced.

Alternatively, the first insulation member may be a metal sheet, aerogel, felt, or the like material that reduces heat transfer. Alternatively, the second insulation member may be a metal sheet, aerogel, felt, or the like, which reduces heat transfer. Wherein the first heat insulating member and the second heat insulating member may be the same or different.

The first energy-gathering cover 12 is a middle cover, the second energy-gathering cover 13 is a lower cover, the third energy-gathering cover 11 is an upper cover, the middle cover and the lower cover are sequentially arranged at intervals along the direction from top to bottom, the upper cover and the middle cover enclose a first cavity 125, and the middle cover and the lower cover enclose a second cavity 126.

Illustratively, the top of the outer edge 113 of the lower cover is configured with a plurality of convex edges 132, and the convex edges 132 are sequentially arranged at intervals along the circumferential direction of the lower cover, wherein each convex edge 132 extends upwards, and the lower wall surface of the middle cover is abutted with the upper wall surface of the convex edge 132.

In this embodiment, the lower cover and the middle cover are contacted by the plurality of convex edges 132, so that the contact area between the lower cover and the middle cover can be reduced, and the heat conduction between the middle cover and the lower cover can be further reduced.

Optionally, as shown in fig. 1 to 4, the gas stove further comprises a support claw 2, wherein the support claw 2 is arranged above the energy-gathering cover assembly, and the support claw 2 is used for supporting the cooker, so that the cooker can be heated by flame of the gas stove 1.

The disclosed embodiments also provide a gas cooker 1, the gas cooker 1 comprising the energy concentrating cover assembly of any one of the embodiments described above.

The gas stove 1 provided in the embodiments of the present disclosure includes the energy concentrating cover assembly according to any one of the embodiments, so that the energy concentrating cover assembly according to any one of the embodiments has the beneficial effects described above, and will not be described herein.

Optionally, the gas range 1 further comprises a sleeve 3, the sleeve 3 being connected between the support claw 2 and the energy concentrating cover assembly to reduce heat transfer between the support claw 2 and the energy concentrating cover assembly.

In this embodiment, the claw 2 is connected to the energy collecting cover assembly through the sleeve 3, that is, the claw 2 is not in direct contact with the energy collecting cover assembly, when the gas stove 1 works, the claw 2 is heated first, the heat of the claw 2 is transferred to the sleeve 3, the sleeve 3 transfers the heat to the energy collecting cover assembly, or the sleeve 3 is made of a heat insulating material, the heat is not transferred to the energy collecting cover assembly, and thus the heat transferred to the energy collecting cover assembly by the claw 2 can be reduced. Through the setting of sleeve 3 in this embodiment, can reduce the temperature of gathering the energy cover subassembly, reduce the heat transfer of gathering energy cover subassembly and external world, reduce heat loss, improve the energy consumption of gas-cooker 1.

Alternatively, the energy concentrating cap assembly may be an energy concentrating cap, a foot 4, a liquid tray or a glass panel, etc.

Optionally, the sleeve 3 is of a different material than the fingers 2.

In this embodiment, the material of the sleeve 3 is different from that of the pawl 2, so that the heat conduction speed is reduced, and the heat transferred from the pawl 2 to the sleeve 3 can be further reduced.

Optionally, the sleeve 3 is of a different material than the energy concentrating cap assembly.

In this embodiment, the materials of the sleeve 3 and the energy-gathering cover component are also different, so that the heat conduction speed between the support claw 2 and the energy-gathering cover component is reduced, the heat transferred from the sleeve 3 to the energy-gathering cover component can be further reduced, the heat transferred from the support claw 2 to the energy-gathering cover component is further reduced, and the energy consumption of the gas stove 1 is improved.

Alternatively, as shown in fig. 4, the sleeve 3 is detachably connected with the pawl 2.

In the embodiment, the sleeve 3 is detachably connected with the support claw 2, so that the support claw 2 and the energy gathering cover assembly are convenient to mount and dismount. In addition, the sleeve 3 and the supporting claws 2 are not of an integral structure, so that heat transferred from the supporting claws 2 to the sleeve 3 can be reduced, and further heat of the energy gathering cover assembly is reduced.

Optionally, the sleeve 3 is configured with an internal thread, and the lower end of the pawl 2 is configured with an external thread, and when the internal thread is matched with the external thread, the sleeve 3 is connected with the pawl 2.

In this embodiment, sleeve 3 passes through screw-thread fit with the branch claw 2 and is connected, need not to establish part connection sleeve 3 and branch claw 2 in addition, has improved sleeve 3 and branch claw 2 assembly's convenience. Moreover, the threaded connection is easy to process and low in cost.

Alternatively, the thread dimensions may be M3, M4, M5, M6, etc. dimensions. Preferably, the thread has a dimension M6.

Alternatively, the number of the claws 2 is plural, and the plural claws 2 are arranged at intervals along the circumferential direction of the energy accumulating cover, wherein the number of the sleeves 3 is the same as and corresponds to the number of the claws 2 one by one.

In this embodiment, the stability to the pan support can be improved to the setting of a plurality of claws 2, and every claw 2 all corresponds and sets up a sleeve 3 for every claw 2 can both reduce the heat of downward transmission, and then reduces the heat loss of whole gas-cooker 1, improves the energy efficiency of whole gas-cooker 1.

Optionally, as shown in fig. 2 and 3, the gas stove 1 further includes an upper cover, the supporting claw 2 is located above the upper cover, the sleeve 3 is located below the upper cover, and the supporting claw 2 passes through the upper cover and is connected with the sleeve 3.

In this embodiment, the support claw 2 and the upper cover are both the first heated parts, and after the upper cover is heated, heat can be radiated to the bottom of the cooker, so that the energy efficiency of the gas stove 1 is improved. Therefore, the claws 2 are connected to the upper cover, and the sleeve 3 is provided below the upper cover, so that the heat transferred downward from the upper cover can be reduced.

Optionally, the supporting claw 2 is fixedly connected with the upper cover. For example, the claws 2 are connected to the upper cover by welding. This can increase the connection stability of the claws 2 with the upper cover.

Optionally, the lower end of the pawl 2 is attached to the upper surface of the upper cover, so that the heat of the pawl 2 can be transferred to the upper cover, and the heat transferred downwards is reduced.

Optionally, a third gap exists between the upper wall surface of the sleeve 3 and the lower wall surface of the upper cover, so that the sleeve 3 is prevented from contacting the upper cover, and heat conduction between the upper cover and the sleeve 3 is reduced.

Optionally, the supporting claw 2 extends along the radial direction of the upper cover, so that the contact area of the supporting claw 2 and the pot is increased, and the supporting stability of the supporting claw 2 is improved.

Alternatively, as shown in fig. 3, the energy concentrating cap assembly comprises an energy concentrating cap, with part of the outer wall of the sleeve 3 facing outwardly protruding 119 forming a boss 31, the boss 31 abutting the energy concentrating cap.

In this embodiment, the outer wall surface portion of the sleeve 3 is outwardly convex 119 to form a boss 31, which facilitates the connection of the sleeve 3 to the energy concentrating housing.

Optionally, the energy gathering cover comprises a lower cover, the lower cover is located below the upper cover, the lower cover and the upper cover enclose a cavity, and air in the cavity can further isolate heat transferred downwards by the upper cover and the supporting claws 2.

Optionally, as shown in fig. 3, the lower cover is provided with a first through hole, the sleeve 3 extends into the first through hole, the edge of the first through hole extends upwards to form a first bulge 131, and the lower surface of the boss 31 is abutted against the first bulge 131.

In this embodiment, the sleeve 3 is connected between the lower cover and the supporting claw 2, the sleeve 3 extends into the first through hole, the edge of the first through hole extends upwards to form a first bulge 131, and the first bulge 131 is abutted against the lower wall surface of the boss 31. That is, the sleeve 3 is in contact with the lower cover through the first protrusions 131 and the protrusions 31, so that the protrusions 31 do not need to be in surface contact with the whole lower cover, the contact area between the sleeve 3 and the lower cover can be reduced, and the heat transferred from the sleeve 3 to the lower cover can be reduced.

Alternatively, the cross-sectional area of the first through hole is larger than the cross-sectional area of the sleeve 3, and the inner wall surface of the first through hole is not in contact with the outer wall surface of the sleeve 3. This allows the contact between the sleeve 3 and the lower cover only through the first protrusions 131 and the protrusions 31, reducing the contact area of the sleeve 3 and the lower cover, and further reducing the heat conduction between the sleeve 3 and the lower cover.

Alternatively, when the number of the sleeves 3 is plural, the number of the first through holes and the number of the first protrusions 131 are the same as and correspond to each other one by one. That is, the sleeve 3 contacts the lower cover only with the plurality of first protrusions 131 and the protrusions 31, which can achieve connection stability of the claws 2, the sleeve 3 and the lower cover and can reduce heat conduction between the claws 2, the sleeve 3 and the lower cover.

Alternatively, the first protrusion 131 is matched with the boss 31, that is, the shape, size, etc. of the first protrusion 131 and the boss 31 are the same or similar, so that the connection stability of the first protrusion 131 and the boss 31 can be increased.

As shown in fig. 3, the boss 31 is annular, and the first boss 131 is annular, so that the sleeve 3 can be ensured to press against the lower cover, and the lower cover is prevented from rotating.

Optionally, the middle cover is positioned above the lower cover, the middle cover is positioned between the upper cover and the lower cover, the middle cover is provided with a second through hole, and the sleeve 3 passes through the second through hole to be abutted with the lower cover; the edge of the second through hole extends downwards to form a second protrusion 121, and the upper surface of the boss 31 abuts against the second protrusion 121.

In this embodiment, the gas stove 1 may further be provided with a middle cover, and the sleeve 3 passes through the second through hole to realize communication with the lower cover, where the middle cover and the sleeve 3 are connected and supported by the second protrusion 121 and the boss 31, so that the sleeve 3 can compress the middle cover, and the middle cover is prevented from rotating. And the middle covers are connected with the boss 31 through the second bulge 121, so that the contact area between the middle cover and the sleeve 3 can be reduced, and the heat conduction between the middle cover and the sleeve 3 can be further reduced.

Alternatively, the cross-sectional area of the second through hole is larger than the cross-sectional area of the sleeve 3, and a fourth gap is also present between the inner wall surface of the second through hole and the outer wall surface of the sleeve 3, that is, the sleeve 3 is not in contact with the inner wall surface of the second through hole. The middle cover and the sleeve 3 are connected only through the second protrusion 121 and the boss 31, so that the contact area between the sleeve 3 and the middle cover can be further reduced, and the heat conduction between the sleeve 3 and the middle cover can be reduced.

Optionally, the middle cover is located in the cavity to divide the cavity into a first cavity 125 and a second cavity 126, the upper cover and the middle cover enclose the first cavity 125, and the middle cover and the lower cover enclose the second cavity 126.

In this embodiment, the structure of three cover bodies forms two cavities, and two cavities can further reduce the downward heat conduction of upper cover and branch claw 2, play fine thermal-insulated effect. Specifically, after the upper cover is heated, a part of heat is transferred to the air in the first cavity 125, and due to the existence of the middle cover and the second cavity 126, the air in the first cavity 125 is not directly contacted with the lower cover, so that the heat conduction speed between the upper cover and the lower cover through an air medium is reduced.

In practical applications, the gas cooker 1 may be provided without a middle cover, that is, the gas cooker 1 is provided with only the upper cover, the support claws 2, the lower cover and the sleeve 3. This can reduce the cost of the gas range 1. Moreover, as the boss 31 structure of the sleeve 3 can be matched with the first boss 131, the gas stove 1 is not provided with a middle cover, so that the assembly of the sleeve 3 and a lower cover is not influenced, the assembly of the whole gas stove 1 is not influenced, and the reusability of the gas stove 1 is improved. Optionally, the gas stove 1 can be provided with a middle cover, so that the downward heat conduction effect of the upper cover and the support claw 2 can be further reduced, and the energy efficiency of the gas stove 1 is improved.

Optionally, as shown in fig. 3, the energy concentrating housing assembly further comprises a foot 4, the foot 4 being located below the lower housing for supporting the lower housing. Wherein the sleeve 3 is connected with the foot 4 after passing through the first through hole.

In this embodiment, the feet 4 are capable of supporting the energy concentrating shield such that a fifth gap exists between the energy concentrating shield and the liquid bearing tray or glass table, reducing heat transfer downward from the energy concentrating shield. Meanwhile, secondary air can flow to the fire hole 51 of the burner through the fifth gap at the bottom of the energy gathering cover, so that the combustion efficiency of the burner is improved. The lower extreme of sleeve 3 is connected with footing 4, can fix sleeve 3, and then makes the setting of branch claw 2 more stable.

Optionally, the foot 4 is connected to the sleeve 3 by fasteners. This facilitates the assembly and disassembly of the foot 4 from the sleeve 3.

Optionally, the footing 4 is configured with a first screw hole, the first screw hole penetrates through the footing 4 longitudinally, a second screw hole is formed in the bottom of the sleeve 3, the first screw hole corresponds to the second screw hole, and the fastener penetrates through the first screw hole and then stretches into the second screw hole to achieve the effect of connecting the footing 4 and the sleeve 3.

Optionally, the foot 4 is located below the sleeve 3, a gap being present between the foot 4 and the sleeve 3, so that the foot 4 is not directly connected to the sleeve 3.

In this embodiment, the foot 4 is not in direct contact with the sleeve 3, and the foot 4 and the sleeve 3 are connected by the fastener only, so that the heat conduction between the sleeve 3 and the foot 4 can be reduced, so that only a small part of heat of the sleeve 3 can be transferred to the foot 4, and the heat conduction between the sleeve 3 and the foot 4 is reduced. Furthermore, the heat transfer of the feet 4 to the tray or glass panel below the feet 4 can be reduced.

Optionally, the upper wall of the foot 4 is recessed downward into a groove 41, and the lower end of the claw 2 assembly, that is, the lower end of the sleeve 3 is located in the groove 41, and a first gap exists between the lower end of the sleeve 3 and the bottom surface of the groove 41, so that the lower end of the sleeve 3 is not in contact with the bottom surface of the groove 41, wherein the gap includes the first gap.

In this embodiment, the bottom 4 is connected with the sleeve 3 through the fastener, and the upper wall surface of the bottom 4 is provided with the groove 41, so that the sleeve 3 can be avoided, the bottom surface of the groove 41 is not contacted with the lower end of the sleeve 3, and the heat conduction between the sleeve 3 and the bottom 4 can be reduced.

Optionally, a second gap exists between the outer peripheral wall of the sleeve 3 and the inner peripheral wall of the groove 41, the gap comprising the second gap.

In this embodiment, the outer peripheral wall of the sleeve 3 is not in contact with the inner peripheral wall of the groove 41, so that the contact between the sleeve 3 and the foot 4 can be further reduced, and the heat conduction between the sleeve and the foot can be further reduced.

Optionally, the second gap is annular. In this embodiment, the second gap is annular to ensure that the circumferential direction of the sleeve 3 is not in contact with the inner peripheral wall of the groove 41.

Optionally, the foot 4 is abutted against the lower housing, i.e. the foot 4 is abutted against or in close proximity to the lower housing, to provide support of the foot 4 to the lower housing.

Optionally, the foot 4 is provided with a limiting part 42, the lower cover is provided with a limiting matching part, and when the limiting part 42 is matched with the limiting matching part, the foot 4 and the lower cover are limited to rotate.

In this embodiment, the structure of the limiting portion 42 and the limiting engaging portion can prevent the foot 4 from rotating during assembly.

Alternatively, as shown in fig. 3 and 4, the stopper 42 includes one of a boss 119 post and a stopper hole, and the stopper fitting portion includes the other of the boss 119 post and the stopper hole.

In this embodiment, the structure of protruding 119 post and spacing hole is easy to process, the effect is showing, need not to carry out great change to footing 4 and lower cover, just can realize the spacing of footing 4 and lower cover.

Optionally, the gas range 1 further comprises a thermal insulation arranged between the sleeve 3 and the energy accumulating cover assembly.

In this embodiment, the heat insulating member is disposed at a position where the sleeve 3 contacts the energy collecting cover assembly, so that heat conduction between the sleeve 3 and the energy collecting cover can be further reduced, and further downward heat conduction of the support claws 2 can be reduced.

Specifically, a heat insulator is provided at the junction of the sleeve 3 and the lower cover, that is, at the junction of the lower wall surface of the boss 31 and the first boss 131, to reduce heat conduction between the sleeve 3 and the lower cover.

A heat insulator may be provided at the junction of the sleeve 3 and the middle cover, that is, at the junction of the upper wall surface of the boss 31 and the second protrusion 121, to reduce heat conduction between the sleeve 3 and the middle cover.

Alternatively, the insulation may be sheet metal, aerogel, felt, or the like that reduces heat transfer.

The gas stove 1 comprises a energy gathering cover and a burner, the burner comprises a fire cover 5, the fire cover 5 is provided with a fire hole 51, the energy gathering cover is arranged on the outer side of the fire cover 5, the energy gathering cover defines a secondary air channel 1195, the secondary air channel 1195 is communicated with the fire hole 51 and supplies secondary air to the fire hole 51, the fire cover 5 is provided with the fire hole 51, air-fuel mixture gas flowing out of the fire hole 51 of the fire cover 5 is ignited to form gas in a combustion state, and meanwhile, the surrounding secondary air is required to be supplied in the combustion process to realize complete combustion.

Optionally, as shown in fig. 1 and 9, the upper cover part protrudes upwards to form a protrusion 119, and a standing vortex chamber 1191 is formed between the protrusion 119 and the outer edge 113 of the upper cover, and the standing vortex chamber 1191 is used for standing flue gas.

In this embodiment, the upper cover constructs the standing vortex cavity 1191, and the high temperature flue gas can reside in the standing vortex cavity 1191, so that the residence time of the high temperature flue gas in the upper cover is improved, the high temperature flue gas can perform radiation heat exchange on the cooker in the standing vortex cavity 1191, and the energy efficiency of the gas stove 1 is improved.

Alternatively, as shown in fig. 10, the thick arrow in fig. 10 indicates the flow direction of the secondary air, the thin arrow indicates the flow direction of the flue gas, and the upper cover includes a first wall section 111, a second wall section 112, and an outer edge 113, which are disposed in this order in the inside-out direction, wherein the first wall section 111 is inclined upward in the inside-in direction.

In this embodiment, the first wall section 111 is inclined upwards along the direction from inside to outside, so that the first wall section 111 can guide the high-temperature flue gas generated by the gas stove 1, and the high-temperature flue gas flows along the first wall section 111 until contacting with the bottom of the pan, so that the flow of the high-temperature flue gas in the first wall section 111 is not oriented (such as flowing or divergent flowing in other directions) due to the fact that the first wall section 111 is a plane or other shapes, and the flow of the combustion gas and the high-temperature flue gas is smoother, so that the supply of secondary air is more beneficial to reaching the root of the fire hole 51.

Optionally, the second wall section 112 is inclined upwardly in an inside-out direction; the outer rim 113 is connected to the bottom of the second wall section 112; the height of the top of the first wall section 111 and the height of the top of the second wall section 112 are both less than or equal to the height of the top of the outer rim 113.

The high temperature flue gas generated by the combustion of the gas stove 1 firstly flows upwards to the top of the first wall section 111 along the first wall section 111, then contacts with the pan bottom above the gas stove 1, exchanges heat with the pan bottom, then flows outwards along the sixth gap between the upper cover and the pan bottom, when the high temperature flue gas flows to the outer edge 113, the top of the outer edge 113 is higher than the heights of the top of the first wall section 111 and the top of the second wall section 112, when the high temperature flue gas flows to the outer edge 113, the outer edge 113 can block part of the high temperature flue gas to flow out, part of the high temperature flue gas flows back, and because the outer edge 113 is connected with the bottom of the second wall section 112, the back-flowing high temperature flue gas flows downwards along the outer edge 113 and flows to the bottom of the second wall section 112, and then flows upwards along the second wall section 112 after the back-flowing high temperature flue gas flows to the top of the second wall section 112, the high-temperature flue gas which is subjected to heat exchange with the bottom of the pot again, then the high-temperature flue gas which is partially reflowed is converged with the newly generated high-temperature flue gas of the gas stove 1 at the top of the first wall section 111 and the top of the second wall section 112, the converged high-temperature flue gas flows outwards along a sixth gap between the upper cover and the bottom of the pot, the next cycle is started, the high-temperature flue gas continuously exchanges heat with the bottom of the pot in the continuous cycle, the residence time and the heat exchange time of the flue gas are improved, and in the cycle process, a certain pressure difference is generated between the high-temperature flue gas and the air outside due to the continuous accumulation of the high-temperature flue gas, so that the part of the circulated high-temperature flue gas is discharged through the sixth gap between the bottom of the pot and the upper cover, the generated CO is ensured not to exceed the standard, and the cycle is improved under the conditions that the heat load is certain, the heat convection heat exchange coefficient is certain, and the heat exchange area and other parameters cannot be improved.

Optionally, the outer rim 113 is inclined upwardly in the inside-to-outside direction.

The pan bottom, the second wall section 112 and the outer edge 113 together form a semi-closed cavity with orderly inlet and outlet, and high-temperature flue gas flows orderly inside and does not interfere with the high-temperature flue gas at the first wall section 111.

Optionally, the upper cover is annular, the upper cover encloses an air channel 1195, a channel 1192 is formed between adjacent protrusions 119, and the channel 1192 communicates with the standing vortex cavity 1191 and the air channel 1195 at the inner end of the upper cover.

Alternatively, the number of the projections 119 is plural, and the plural projections 119 are arranged at intervals in order in the circumferential direction of the upper cover.

In this embodiment, the plurality of protrusions 119 are arranged at intervals, that is, the protrusions 119 of the upper cover are not circumferential protrusions 119 of a whole circle, so that the standing vortex cavities 1191 formed by the protrusions 119 are also arranged separately, and thus the standing vortex cavities 1191 formed by the protrusions 119 are also arranged separately, and further the standing vortex cavities 1191 formed by the protrusions 119 are also arranged separately, and thus the standing vortex of the smoke can be reduced properly, and thus when the supply of secondary air required by the flame of the fire cover 5 is ensured, the secondary air quantity ejected by the flame of the fire cover 5 is reduced properly, and further the thermal efficiency of the gas stove 1 can be improved.

Optionally, the upper housing further comprises a third wall section 1193 and a fourth wall section 1194, the first wall section 111 being inclined upwards in an inside-out direction; the second wall section 112 is inclined downward in the inside-out direction, and the inner end of the second wall section 112 is connected to the outer end of the first wall section 111; a third wall segment 1193 is connected between one end of the first wall segment 111 and one end of the second wall segment 112; a fourth wall segment 1194 is connected between the other end of the first wall segment 111 and the other end of the second wall segment 112; wherein the first wall section 111, the second wall section 112, the third wall section 1193 and the fourth wall section 1194 enclose a protrusion 119.

In this embodiment, the first wall section 111, the second wall section 112, the third wall section 1193 and the fourth wall section 1194 are connected from four directions to form a protrusion 119, and the protrusion 119 encloses a vortex-trapped cavity 1191 with the outer edge 113 of the upper cover, so that the upper cover can form the protrusion 119.

Optionally, the first wall section 111 and the second wall section 112 each extend in an arc shape along the circumferential direction of the upper casing, such that the protrusion 119 is in the shape of a fan-shaped protrusion 119, which can increase the volume of the trapped vortex cavity 1191.

Optionally, an outer edge 113 of the upper cover is connected to an outer end portion of the second wall section 112, and the outer edge 113 of the upper cover is inclined upwards in an inner-to-outer direction, and a standing vortex chamber 1191 is formed at a connection portion of the outer edge 113 of the upper cover and the second wall section 112.

In this embodiment, the outer edge 113 of the upper cover includes the third vertical section 116, and the outer edge 113 of the upper cover is inclined upward in the direction from inside to outside, so that the outer edge 113 of the upper cover can form the trapped vortex chamber 1191 with the protrusion 119, and the volume of the trapped vortex chamber 1191 is ensured.

In this embodiment, the upper cover is provided with a plurality of protrusions 119, that is, the protrusions 119 are not in a ring shape extending circumferentially, but are divided into a plurality of segments of protrusions 119, and channels 1192 formed by adjacent protrusions 119 are communicated with the standing vortex chamber 1191, so that the standing vortex chamber 1191 is easy to store liquid when the pot overflows due to the fact that the standing vortex chamber 1191 is a lower cavity. If not cleaned in time, dirt is easily formed in trapped vortex cavity 1191 which is difficult to clean. The channels 1192 between adjacent protrusions 119 can timely drain the liquid in the standing vortex cavity 1191, so that dirt is prevented from forming in the standing vortex cavity 1191. It can be understood that: the channels 1192 form drainage channels.

Optionally, as shown in fig. 1, pawl 2 is disposed within channel 1192.

In this embodiment, the height of the channel 1192 is lower, and the pawl 2 is disposed in the channel 1192, so that the height of the pawl 2 is not increased, and the pawl 2 is convenient to support the pot.

Optionally, the supporting claw 2 is attached to the upper surface of the upper cover, the outer edge 113 of the upper cover is adapted to abut against the outer end of the supporting claw 2, and the inner end of the channel 1192 is adapted to be flush with the inner end of the supporting claw 2 so as to isolate two adjacent standing vortex cavities 1191.

In this embodiment, the supporting claw 2 is attached to the upper surface of the upper cover, that is, there is no gap between the lower end of the supporting claw 2 and the upper cover, the outer end of the supporting claw 2 is abutted to the outer edge 113 of the upper cover, and the inner end of the supporting claw 2 is abutted to the inner end of the upper cover, that is, the supporting claw 2 can completely separate two adjacent standing vortex chambers 1191, so that the flue gas in the two standing vortex chambers 1191 is prevented from being affected mutually, and the heat exchange efficiency between the high-temperature flue gas in the standing vortex chambers 1191 and the bottom of the pot is further improved.

Optionally, as shown in fig. 1, the fire holes 51 of the fire cover 5 are multiple, and the multiple fire holes 51 are sequentially spaced along the circumferential direction of the fire cover 5, where the multiple fire holes 51 form multiple fire hole groups, and the multiple fire hole groups are sequentially spaced along the circumferential direction of the fire cover 5, and fire avoiding portions 52 are formed between adjacent fire hole groups, where the channels 1192 correspond to the fire avoiding portions 52.

In this embodiment, the structure of the protrusion 119 and the standing vortex cavity 1191 enables the high-temperature flue gas to be discharged in time, so that the injection capacity of the flame of the fire cover 5 to secondary air is improved. However, excessive secondary air injection may result in reduced thermal efficiency of the burner. Therefore, the fire hole group is correspondingly provided with the protrusion 119, the first wall section 111 guides the flue gas, and the secondary air injection quantity at the fire hole 51 is improved. The fire avoiding part 52 without the fire hole 51 corresponds to the channel 1192, so that the injection amount of secondary air in the part can be reduced, the fire cover 5 can inject the secondary air, the combustion sufficiency of flame is ensured, the injection amount of the secondary air can be properly controlled, and the excessive injection of the secondary air is avoided.

Alternatively, the projections 119 correspond to the fire hole groups, and the projections 119 have the same or similar size as the fire hole groups to ensure supply of secondary air at the fire holes 51.

Optionally, the channels 1192 slope downward in an outside-in direction, or the channels 1192 extend in a horizontal direction.

In this embodiment, the channel 1192 is inclined to the inner end, so that the channel 1192 has a certain gradient, so as to facilitate the complete discharge of the liquid in the standing vortex cavity 1191.

Alternatively, the channel 1192 may be a concave structure.

Optionally, the flow area of the channels 1192 increases gradually in the inside-out direction.

In this embodiment, the flow area of the outer end of the channel 1192 is larger, so that the liquid in the standing vortex cavity 1191 can flow into the channel 1192 faster, and the flow area of the inner end of the channel 1192, that is, the outlet of the channel 1192, is smaller, so that the liquid such as the soup in the standing vortex cavity 1191 can flow out of the upper cover more intensively, and the range of the soup outflow is reduced.

Alternatively, as shown in fig. 5 and 9, the first wall section 111, the second wall section 112, and the outer edge 113 of the upper cover are disposed in this order in the inside-to-outside direction. The upper housing further comprises a fifth wall section 114, the fifth wall section 114 being connected between the inner end of the outer rim 113 and the outer end of the second wall section 112, the fifth wall section 114, the outer rim 113 and the second wall section 112 enclosing to form a trapped vortex chamber 1191, wherein the fifth wall section 114 forms a bottom wall of said trapped vortex chamber 1191.

In this embodiment, the fifth wall segment 114 forms a bottom wall of the standing vortex chamber 1191, so that the volume of the standing vortex chamber 1191 can be increased, and the residence time of the flue gas and the heat exchange time with the bottom of the pan can be further improved.

Optionally, the fifth wall segment 114 extends at least partially in a horizontal direction in an inside-out direction.

In this embodiment, the fifth wall segment 114 extends at least partially in the horizontal direction, so that the bottom of the standing vortex chamber 1191 is smoother, and the residence time of the flue gas is increased.

Alternatively, the fifth wall segment 114 may extend in a horizontal direction or may extend partially in a horizontal direction. It should be noted that: the fifth wall segment 114 in this embodiment extends along a horizontal direction, which is not strictly horizontal, and the fifth wall segment 114 may be slightly concave or slightly convex, which can increase the residence volume of the standing vortex chamber 1191, which is an alternative embodiment of the present application.

Alternatively, the height of the inner end of the outer rim 113 is the same as the height of the outer end of the second upper housing end.

In this embodiment, the fifth wall segment 114 is connected between the inner end of the outer rim 113 and the outer end of the upper cover, where the inner end of the outer rim 113 and the outer end of the second upper cover segment are the same in height, and the fifth wall segment 114 is connected between the bottom of the outer rim 113 and the bottom of the second lower cover end, so that the heights of the two ends of the fifth wall segment 114 are identical, and the volume of the trapped vortex cavity 1191 can be increased.

It can be understood that: the second wall section has a first included angle with the horizontal direction, the outer edge has a third included angle with the horizontal direction, and when the fifth wall section has the third included angle with the horizontal direction, the third included angle is different from the first included angle and the second included angle.

Optionally, the height of the protrusion 119 is smaller than the height of the pawl 2.

In this embodiment, the height of the protrusion 119 is smaller than that of the pawl 2, and the pawl 2 can separate adjacent protrusions 119, so that the injection areas at the first wall section 111 corresponding to two adjacent protrusions 119 are not interfered with each other, and the influence of air flow disturbance on injection is prevented.

Optionally, the fourth angle a of the first wall section 111 to the horizontal is in the range of 0 ° -70 °.

In this embodiment, the fourth angle a between the first wall section 111 and the horizontal direction is greater than 70 °, so that the inclination angle of the first wall section 111 is too large, which increases the resistance of the flue gas flowing, so that the flue gas loss is more, and the flue gas cannot smoothly flow into the standing vortex cavity 1191.

For example, the fourth angle a of the first wall section 111 to the horizontal may be 10 °, 20 °, 30 °, 40 °, 50 °, 60 °. Preferably, the first wall section 111 forms a 40 ° with the fourth angle a in the horizontal direction.

Optionally, the second wall segment 112 is at an angle b in the range of 30 ° -90 ° to the horizontal.

In this embodiment, when the first included angle b between the second wall section 112 and the horizontal direction is smaller than 30 °, the depth of the standing vortex chamber 1191 is lower, which is inconvenient for the residence of the flue gas.

For example, the first angle b of the second wall segment 112 with respect to the horizontal may be 35 °, 40 °, 50 °, 60 °, 70 °, 80 °, etc. Preferably, the second wall section 112 is at an angle b of 55 ° to the first horizontal direction.

Optionally, the second angle c of the outer edge 113 to the horizontal is in the range of 30 ° -90 °.

In this embodiment, the second included angle c between the outer edge 113 and the horizontal direction is smaller than 30 °, so that the depth of the standing vortex chamber 1191 is lower, which is inconvenient for the standing of the flue gas.

For example, the second angle c between the outer edge 113 and the horizontal direction may be 35 °, 40 °, 50 °, 60 °, 70 °, 80 °, and the like. Preferably, the second wall section 112 is at a second angle c of 50 ° to the horizontal.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A energy concentrating cap assembly, comprising:

a first energy concentrating cap;

the second energy gathering cover is positioned below the first energy gathering cover;

the top of the outer edge of the second energy gathering cover is provided with a plurality of convex edges, and the convex edges are sequentially arranged at intervals along the circumferential direction of the second energy gathering cover;

the convex edge extends upwards, and the lower wall surface of the first energy gathering cover is abutted with the upper wall surface of the convex edge.

2. The energy concentrating shield assembly of claim 1 wherein the first energy concentrating shield comprises:

a first horizontal segment;

a first vertical section, one end of which is connected to the outer end of the first horizontal section and extends upwards along the direction from inside to outside;

the first hem is connected with the other end of the first vertical section and extends towards the direction deviating from the first horizontal section, and the lower wall surface of the first hem is abutted with the upper wall surface of the convex edge.

3. The energy concentrating shield assembly of claim 1 wherein the second energy concentrating shield comprises:

a second horizontal segment;

a second vertical section, one end of which is connected to the outer end of the second horizontal section and extends upwards along the direction from inside to outside; the convex edge is arranged at the other end of the second vertical section and extends upwards, and the outer edge of the second energy gathering cover comprises the second vertical section.

4. The energy concentrating shield assembly of claim 1 wherein,

the first energy gathering cover and the second energy gathering cover are annular, and a first gap is reserved between the inner end part of the first energy gathering cover and the inner end part of the second energy gathering cover, so that the inner end part of the first energy gathering cover is not contacted with the inner end part of the second energy gathering cover.

5. The energy concentrating shield assembly of claim 2 further comprising:

the third energy gathering cover is positioned above the first energy gathering cover, and the lower wall surface of the outer edge of the third energy gathering cover is abutted with the upper wall surface of the first folded edge.

6. The energy concentrating shield assembly of claim 5 wherein the third energy concentrating shield comprises:

a third horizontal segment;

a third vertical section, one end of which is connected with the inner end of the third horizontal section and extends upwards along the direction from inside to outside;

the second folded edge is connected with the other end of the third vertical section and extends towards the direction away from the third horizontal section, and the lower surface of the second folded edge is abutted with the upper surface of the first folded edge;

and the flanging is connected with the second flanging and extends downwards to the lower part of the convex edge.

7. The energy concentrating shield assembly of claim 5 wherein,

the third energy gathering cover is annular, and a second gap is formed between the inner end part of the third energy gathering cover and the inner end part of the first energy gathering cover, so that the inner end part of the third energy gathering cover is not contacted with the inner end part of the first energy gathering cover.

8. The energy concentrating shield assembly of claim 5 further comprising:

the first heat insulation piece is arranged between the lower wall surface of the outer edge of the third energy gathering cover and the upper wall surface of the outer edge of the first energy gathering cover; and/or the number of the groups of groups,

the first energy gathering cover and the third energy gathering cover enclose a first cavity, and the first energy gathering cover and the second energy gathering cover enclose a second cavity, wherein the energy gathering cover assembly further comprises:

and the heat insulation material is arranged in the first cavity and/or the second cavity.

9. The energy concentrating shield assembly of any one of claims 1 to 8 further comprising:

and the second heat insulation piece is positioned between the lower wall surface of the first energy gathering cover and the upper wall surface of the convex edge.

10. A gas range comprising a energy concentrating cover assembly according to any one of claims 1 to 9.