CN214891356U - Gas stove and energy gathering cover thereof - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses a gas stove and an energy-gathering cover thereof. The energy gathering cover comprises: an upper cover; the lower cover is positioned below the upper cover and forms a first secondary air channel for supplementing secondary air to the outer ring fire of the burner of the gas stove with the upper cover in an enclosing way; the upper shield or the lower shield includes the inside wall, the inside wall includes: a first side wall section provided with a vent hole communicated with the outlet of the first secondary air passage; and the second side wall section is connected with the first side wall section and is positioned below the first side wall section, the distance between the first side wall section and the combustor is larger than the distance between the second side wall section and the combustor, and the secondary air quantity flowing to the inner ring fire through the gap between the second side wall section and the combustor is reduced, so that the problem that the inner ring fire and the outer ring fire compete for the secondary air is solved, the quantity of the secondary air supplemented for the outer ring fire is increased, and the combustion efficiency of the outer ring fire is improved.

Description

Gas stove and energy gathering cover thereof

Technical Field

The application relates to the technical field of gas cookers, in particular to a gas stove and an energy-gathering cover thereof.

Background

At present, in some gas cookers, a first secondary air passage is provided for supplementing secondary air to the outer ring fire.

In the combustion process, the inner ring fire and the outer ring fire have the action of competing for secondary air, so that part of secondary air flowing out of the outlet of the first secondary air channel reaches the inner ring fire, and the secondary air which should flow to the inner ring fire can be robbed by the outer ring fire, thereby affecting the combustion efficiency of the outer ring fire and the inner ring fire.

SUMMERY OF THE UTILITY MODEL

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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a gas stove and an energy collecting cover thereof, which aim to solve the problem of low combustion efficiency of inner ring fire and outer ring fire.

According to the utility model discloses an aspect provides a gather of gas-cooker can cover, include: an upper cover; the lower cover is positioned below the upper cover and forms a first secondary air channel for supplementing secondary air to a burner of the gas stove with the upper cover in an enclosing way; the upper shield or the lower shield includes the inside wall, the inside wall includes: a first side wall section provided with a vent hole communicated with the outlet of the first secondary air passage; a second sidewall section connected below the first sidewall section, a distance between the first sidewall section and the combustor being greater than a distance between the second sidewall section and the combustor.

According to the utility model discloses a second aspect of the embodiment provides a gas-cooker, include: the outer fire cover is provided with an outer fire hole; the energy-gathering cover in any one of the above embodiments is sleeved outside the external fire cover, and the vent hole is communicated with the external fire hole.

The gas stove and the energy-gathering cover thereof provided by the embodiment of the disclosure can realize the following technical effects:

the secondary air that the export of first secondary air passageway flowed flows through the air vent, for the combustor supplementary secondary air after flowing, improves the combustion efficiency and the burning sufficiency of combustor. First side wall section is located to the air vent, distance between first side wall section and the combustor is great, distance between second side wall section and the combustor is less, through reducing the distance between second side wall section and the combustor, the secondary air volume of flowing to the inside ring fire through the clearance between second side wall section and the combustor has been reduced, the secondary air that also can avoid originally should flow to the inside ring fire flows to outer ring fire through the clearance between second side wall section and the combustor, thereby the problem that inside ring fire and outer ring fire strived for the secondary air has been alleviated, the combustion efficiency of inside ring fire and outer ring fire has been 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 in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic view of a combustor according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a combustor provided in accordance with embodiments of the present disclosure;

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

fig. 4 is a schematic structural view of a concentrator cap provided in embodiments of the present disclosure.

Reference numerals:

1. a burner; 11. an inner fire cover; 12. an outer fire cover; 13. a gas distribution plate; 2. an energy-gathering cover; 21. an upper cover; 211. an upper cover body; 212. an upper housing outer ring; 22. an inner sidewall; 221. a first sidewall segment; 2211. a vent hole; 222. a second sidewall section; 223. a third sidewall segment; 23. a lower cover; 231. a lower cover body; 232. folding the edges inwards; 24. a first secondary air passage; 241. an inlet of a first secondary air channel; 242. an outlet of the first secondary air passage; 3. a base plate; 4. a second secondary air passage; 41. an inlet of a second secondary air channel; 42. an outlet of the second secondary air passage; 5. a blocking portion; 6. a shield.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can 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. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 4, the present disclosure provides a power concentrating cover 2 of a gas range, which includes an upper cover 21 and a lower cover 23.

As shown in fig. 2, the lower cover 23 is located below the upper cover 21 and encloses with the upper cover 21 to form a first secondary air passage 24 for supplementing secondary air to the outer ring fire of the burner 1 of the gas range, and the flow direction of the secondary air in the first secondary air passage is shown by the upper arrow in fig. 2.

A gap is formed between the outer edge of the upper cover 21 and the outer edge of the lower cover 23, the gap forms an inlet 241 of the first secondary air channel, and optionally, a plurality of protrusions are supported between the outer edge of the upper cover 21 and the outer edge of the lower cover 23, the plurality of protrusions are sequentially arranged along the circumferential direction of the upper cover 21, and the gap is formed between two adjacent protrusions. The external air enters the first secondary air passage 24 through the inlet 241 of the first secondary air passage and flows to the outer fire holes from the outlet 242 of the first secondary air passage to supplement the secondary air to the outer fire holes, thereby improving the combustion efficiency.

The upper cover 21 includes an upper cover body 211, the lower cover 23 includes a lower cover body 231, and the upper cover body 211 is located above the lower cover body 231.

The upper cover 21 or the lower cover 23 includes an inner sidewall 22, the inner sidewall 22 is connected to the inside of the upper cover body 211 or the inside of the lower cover body 231, and the inner sidewall 22 is located between the upper cover body 211 and the lower cover body 231. As shown in fig. 3, the inner side wall 22 is connected to the inside of the upper cover body 211.

As shown in fig. 2 to 4, the inner sidewall 22 has an annular shape extending in the circumferential direction of the concentrator cap 2.

Optionally, as shown in fig. 4, a blocking portion 5 is convexly provided on the upper surface of the upper cover 21 to increase the resistance of the smoke flowing back from the outer edge of the upper cover 21 to the inside.

The upper surface of upper shield 21 is upwards protruded to stop part 5 for stop part 5 can increase the resistance that the flue gas flows back, reduces the speed that the flue gas flows back, thereby increases the time that the flue gas dwells in the space between the upper surface of upper shield 21 and the bottom of a boiler, makes the flue gas can carry out abundant heat transfer with the bottom of a boiler, improves the thermal efficiency of gas-cooker, and the combustible substance in the flue gas can carry out the postcombustion, further improves the thermal efficiency of gas-cooker.

The blocking portion 5 may be in the form of a drill or a crescent-shaped mound.

As shown in fig. 3, the inner side wall 22 includes a first side wall section 221 and a second side wall section 222.

The first sidewall section 221 is provided with a vent hole 2211 communicating with the outlet 242 of the first secondary air passage, the vent hole 2211 communicates with the outer ring fire, and the secondary air flowing out of the outlet 242 of the first secondary air passage flows to the outer ring fire through the vent hole 2211 to supplement the secondary air to the outer ring fire.

The second sidewall section 222 is connected to the first sidewall section 221 and located below the first sidewall section 221, and a distance between the first sidewall section 221 and the combustor 1 is larger than a distance between the second sidewall section 222 and the combustor 1.

The first sidewall section 221 and the second sidewall section 222 are arranged in this order from top to bottom. The distance between the first sidewall section 221 and the burner 1 is larger and the distance between the second sidewall section 222 and the burner 1 is smaller. Setting the distance between the second side wall section 222 and the combustor 1 to be small can reduce the amount of secondary air flowing out of the outlet 242 of the first secondary air passage through the gap between the second side wall section 222 and the combustor 1, that is, reduce the amount of secondary air that the inner ring fire contends for through the gap between the second side wall section 222 and the combustor 1, so that a sufficient amount of secondary air can be supplied to the outer ring fire.

Optionally, the first sidewall section 221 inner diameter is greater than the inner diameter of the second sidewall section 222.

The first sidewall section 221 and the second sidewall section 222 each have an annular shape extending in the circumferential direction of the concentrator cap 2. The inner diameter of the first sidewall section 221 is larger than the inner diameter of the second sidewall section 222, so that the distance between the first sidewall section 221 and the burner 1 is larger than the distance between the second sidewall section 222 and the burner 1.

It will be appreciated that it is also possible to achieve a greater distance between the first sidewall section 221 and the burner 1 than between the second sidewall section 222 and the burner 1 by changing the shape of the burner 1. For example, the outer diameter of the burner 1 is smaller at the first sidewall section 221 and larger at the second sidewall section 222.

Alternatively, the number of the vent holes 2211 is plural, and the plurality of vent holes 2211 are sequentially arranged in the circumferential direction of the energy concentrating cover 2.

Combustor 1 includes outer fire lid 12, and outer fire is located the lateral wall of outer fire lid 12, and the lateral wall of outer fire lid 12 is equipped with a plurality of outer fire holes, and a plurality of outer fire holes form outer fire, and a plurality of outer fire holes set gradually along the circumference of outer fire lid 12.

Set up a plurality of air vents 2211, and a plurality of air vents 2211 are evenly distributed along gathering the circumference of covering 2 in proper order for the air that the export 242 of first secondary air passageway flows can even orderly reachs air vent 2211 everywhere, for the even air feed of a plurality of outer loop fire holes.

It is understood that the plurality of ventilation holes 2211 may be distributed non-uniformly along the circumferential direction of the energy collecting cover 2. At this time, the outer fire holes may be non-uniformly distributed along the circumferential direction of the outer fire cover 12, the number of the vent holes 2211 corresponding to the dense outer fire holes is large and dense, and the number of the vent holes 2211 corresponding to the sparse outer fire holes is small and sparse.

The vent 2211 may have any shape, such as a circular hole or an elongated hole. The size of the openings of all the vent holes 2211 may be determined according to the amount of secondary air required for the outer ring fire.

Optionally, as shown in fig. 1, the upper cover 21 further includes an upper cover outer ring 212 connected to the outer side of the upper cover body 211, and the lower cover 23 further includes a lower cover outer ring connected to the outer side of the lower cover body 231. The upper shield outer ring 212 is located the top of lower cover outer ring, and the lower surface of upper shield outer ring 212 and/or the lower surface of lower cover outer ring are equipped with a plurality of archs, and the arch is supported between upper shield outer ring 212 and lower cover outer ring, and a plurality of archs set gradually along gathering the circumference of covering 2. An inlet 241 of the first secondary air passage is formed between two adjacent supporting protrusions. The external air enters the first secondary air passage 24 through the inlet 241 of the first secondary air passage and flows to the outer fire holes from the outlet 242 of the first secondary air passage to supplement the secondary air to the outer fire holes, thereby improving the combustion efficiency.

Since the first secondary air passage 24 is relatively closed, the flow area of the inlet 241 of the first secondary air passage is controlled by controlling the height of the protrusion so that the amount of secondary air introduced into the inlet 241 of the first secondary air passage corresponds to the amount of secondary air supply required for the outer ring fire, no excess air is discharged from the first secondary air passage 24, and the entire air in the first secondary air passage 24 is used for supplying the outer ring fire. Therefore, the heat transferred from the upper cover 21 to the first secondary air channel 24 is completely used for supplying the external fire for combustion, thereby preventing energy waste and improving energy utilization efficiency, and meanwhile, the secondary air in the first secondary air channel 24 is better preheated, and the heat efficiency of the gas stove can be obviously improved after being mixed with the external fire for combustion.

Alternatively, as shown in fig. 3, the first sidewall section 221 extends in the up-down direction.

The outer fire cover 12 extends in the up-down direction, and the first sidewall section 221 extends in the up-down direction, so that the air flowing out of the vent holes 2211 can smoothly flow to the outer fire holes, and the interference of the air flow at each position of the same vent hole 2211 or among the vent holes 2211 is avoided.

Optionally, the inner side wall 22 further includes a third side wall section 223, the third side wall section 223 being connected between the first side wall section 221 and the second side wall section 222 and constituting a part of the wall surface of the first secondary air passage 24, the second side wall section 222 being inclined inward in the top-down direction to connect the first side wall section 221 and the second side wall section 222.

Alternatively, as shown in fig. 3, the inner sidewall 22 is connected to the upper cover 21; the energy concentrating cover 2 further comprises an inner flange 232, the inner flange 232 is connected to the inner side of the lower cover 23 and is located at the outer side of the second sidewall section 222, and the distance between the inner flange and the second sidewall section 222 ranges from 0.2mm to 1.0 mm.

The distance between the inner flap 232 and the second sidewall section 222 is in the range of 0.2mm to 1.0mm, and the smaller distance provides for non-thermal or weak thermal conduction of the upper and lower housings 21 and 23 and facilitates assembly of the upper and lower housings 21 and 23.

The distance of the inner flap from the second sidewall section 222 may be 0.2mm, 0.5mm, 0.8mm or 1.0 mm.

A second aspect of the disclosed embodiment provides a gas range, as shown in fig. 1 to 3, comprising a burner 1 and a concentrator cap 2 as in any one of the above embodiments.

The outer fire cover 12 is provided with an outer fire hole.

The energy-gathering cover 2 is sleeved on the outer side of the outer fire cover 12, and the vent 2211 is communicated with the outer fire hole.

The gas stove provided by the embodiment of the present disclosure includes the energy collecting cover 2 described in any one of the above embodiments, so that the gas stove has all the beneficial effects of the energy collecting cover 2 described in any one of the above embodiments, and details are not repeated herein.

Optionally, in a specific embodiment, the gas burner further includes a gas distribution plate 13, the gas distribution plate 13 is communicated with the outer fire hole, and the second side wall section 222 is sleeved outside the gas distribution plate 13 and has a gap with the gas distribution plate 13.

The burner 1 further comprises a burner head and a gas distribution plate 13, wherein the gas distribution plate 13 defines an air flow channel, and fuel gas flows into the outer fire holes of the outer fire cover 12 through the air flow channel and is sprayed out from the fire outlets of the outer fire holes. The gas distributing plate 13 is used in cooperation with the burner and the outer fire cover 12, and an alternative assembly manner is to arrange the gas distributing plate 13 between the burner and the outer fire cover 12 and configured to communicate with the intermediate flow path of the gas (or the mixed gas of air and gas) of the burner and the outer fire cover 12, so that the gas enters the gas distributing plate 13 from the burner, then flows into the outer fire cover 12, and finally is ignited at the outer fire hole of the outer fire cover 12 to form flame.

The second side wall section 222 is sleeved outside the gas distribution plate 13 and has a gap with the gas distribution plate 13, the diameter of the second side wall section 222 is 0.2-4mm larger than the diameter of the outer ring of the gas distribution plate 13, namely the gap between the second side wall section 222 and the gas distribution plate 13 is 0.1-2mm, and the gap prevents the second side wall section 222 from interfering with the gas distribution plate 13 and does not hinder the disassembly of the outer fire cover 12 and the gas distribution plate 13. The smaller gap prevents the radiation of the flame combustion from passing through the gap between the second sidewall section 222 and the outer ring diameter of the outer fire cover 12 directly to the floor 3, resulting in wasted energy.

As shown in fig. 2, the second side wall section corresponds to the gas separation plate, and the distance between the second side wall section and the burner is the distance between the second side wall section and the gas separation plate. The first side wall section corresponds to the outer fire cover, and the distance between the first side wall section and the combustor is the distance between the second side wall section and the outer fire cover.

The distance between the first side wall section and the burner is greater than the distance between the second side wall section and the burner, so that the distance between the second side wall section and the burner is smaller, thereby avoiding that the secondary air in the second secondary air channel is seized by the outer ring fire (excluding the upper edge of the outer ring fire).

Alternatively, in another specific embodiment, as shown in fig. 3, the energy collecting cover 2 is sleeved outside the combustor 1, and a shielding piece 6 is arranged between the energy collecting cover and the combustor 1.

The shielding piece 6 is arranged between the energy-gathering cover 2 and the combustor 1, the shielding piece 6 and the energy-gathering cover 2 are sequentially arranged along the direction from inside to outside, in other words, the shielding piece 6 is positioned on the outer side of the combustor 1, the energy-gathering cover 2 is sleeved on the outer side of the shielding piece 6, wherein the direction close to the middle part of the combustor 1 is inner, and the direction far away from the middle part of the combustor 1 is outer.

A shield 6 is arranged between the energy concentrating cover 2 and the burner 1, and depending on the shape and size of the shield 6, the shield 6 can reduce the gap between the energy concentrating cover 2 and the burner 1, i.e. the shield 6 can cover part of the gap, or the shield 6 can cover the gap completely. Thereby shielding piece 6 can reduce the clearance between gathering can cover 2 and the combustor 1 or eliminate this clearance completely, avoids debris such as the liquid that the pan spilled during the culinary art to get into the space that gathers can cover 2 below through this clearance, also avoids the heat that combustor 1 produced to reach other parts through this clearance to can avoid the gas-cooker dirty, and reduce the energy loss of gas-cooker.

As shown in fig. 2, the second side wall section corresponds to the gas separation plate, and the distance between the second side wall section and the burner is the distance between the second side wall section and the gas separation plate. The first side wall section corresponds to the outer fire cover, and the distance between the first side wall section and the combustor is the distance between the second side wall section and the outer fire cover. The shield shields part or all of the gap between the second sidewall section and the gas-distributing disk, and when completely shielded, the distance between the second sidewall section and the burner is zero.

Optionally, the shield 6 is a thermal shield.

The heat insulation part is made of heat insulation materials, such as silica gel, glass fiber, asbestos, silicate or rock wool.

The heat insulation piece can reduce the heat transfer from the burner 1 to the energy-gathering cover 2, and further reduce the energy loss of the gas stove.

Optionally, the shield 6 is a resilient shield 6.

The elastic shielding piece 6 can be elastically deformed, so that the combustor 1 and the energy-gathering cover 2 can be allowed to have larger assembly errors, and under the condition that the combustor 1 and the energy-gathering cover 2 have larger assembly errors, the gap between the combustor 1 and the energy-gathering cover 2 can be completely eliminated, the requirement on the size of the shielding piece 6 can be reduced, and the cost of the gas stove is reduced. Moreover, the elastic shielding piece 6 can avoid rigid contact between the shielding piece 6 and the combustor 1 and rigid contact between the shielding piece 6 and the energy-gathering cover 2, and damage to the combustor 1 and the energy-gathering cover 2 is avoided.

Optionally, the clearance between the burner 1 and the concentrator cap 2 is an interference fit or transition fit with the shield 6, so that the shield 6 can completely eliminate the clearance between the burner 1 and the concentrator cap 2.

Optionally, the shield 6 is a high temperature resistant shield 6, avoiding damage to the shield 6 by the high temperatures generated by the burner 1.

Alternatively, the shield 6 may be a high temperature resistant gasket.

Optionally, the shield 6 is annular extending in the circumferential direction of the concentrator cap 2.

Gather can cover 2 and be the annular, combustor 1 and gather the clearance between the cover 2 and be the annular, shielding piece 6 also is the annular, and shielding piece 6's quantity is one, and shielding piece 6 cover is established in the combustor 1 outside for shielding piece 6 can shelter from the combustor 1 completely and gather the clearance between the cover 2.

It is understood that the shielding member 6 may not be annular, the number of the shielding members 6 is plural, and the plural shielding members 6 are sequentially arranged along the circumferential direction of the energy-collecting cover 2.

Optionally, the shielding piece 6 is detachably connected with the combustor 1, so that the shielding piece 6 and the combustor 1 can be conveniently detached from each other, and the maintenance, the replacement or the cleaning of the combustor 1 is not affected.

The detachable connection mode can be clamping connection or connection through fasteners such as screws.

Optionally, the shielding piece 6 is detachably connected with the energy collecting cover 2, so that the shielding piece 6 and the energy collecting cover 2 can be conveniently detached from each other, and the energy collecting cover 2 is not affected to be maintained, replaced or cleaned.

The detachable connection mode can be clamping connection or connection through fasteners such as screws.

Alternatively, in a specific embodiment, the wall of the burner 1 facing the shield 6 (the outer wall of the burner 1) and/or the wall of the energy concentrating cover 2 facing the shield 6 (the wall of the inner side wall 22 of the energy concentrating cover 2) is provided with a limiting projection located below the shield 6 to support the shield 6, or the shield 6 is provided with a limiting groove adapted to the limiting projection, into which the limiting projection is inserted. The arrangement of the limiting protrusions can enhance the assembling strength between the combustor 1 and/or the energy-gathering cover 2 and the shielding piece 6, and the shielding piece 6 is prevented from shifting or falling off.

In another particular embodiment, the wall of the burner 1 facing the shield 6 (the outer wall of the burner 1) and/or the wall of the energy concentrating shield 2 facing the shield 6 (the wall of the inner side wall 22 of the energy concentrating shield 2) is provided with a stop recess, in which the shield 6 is located. The arrangement of the limiting groove can enhance the assembling strength between the combustor 1 and/or the energy-gathering cover 2 and the shielding piece 6, and the shielding piece 6 is prevented from shifting or falling off.

It will be appreciated that the shield 6 may also be non-removably attached to the burner 1. For example, the shield 6 is bonded to the burner 1 in a simple and inexpensive manner, and for example, the shield 6 is riveted to the burner 1.

It will be understood that the shield 6 can also be connected to the energy concentrating cap 2 in a non-detachable manner. For example, the shield 6 is bonded to the energy concentrating hood 2 in a simple manner and at low cost, and for example, the shield 6 is riveted to the energy concentrating hood 2.

The gas distribution plate 13 is communicated with the outer fire hole, and the second side wall section 222 is sleeved on the outer side of the gas distribution plate 13; the shielding piece 6 is arranged between the second side wall section 222 and the gas distribution plate 13, and the fire outlet of the outer fire hole is higher than the shielding piece 6.

The fire outlet of the outer fire hole is higher than the shielding piece 6, so that the shielding piece 6 cannot influence upward or obliquely upward spraying of flame coming out of the outer fire hole, namely the shielding piece 6 cannot influence the normal work of the combustor 1. Moreover, the shield 6 can prevent heat generated by combustion at the outer fire hole from being conducted downwards to other parts through a gap between the burner 1 and the energy-collecting cover 2.

The outlet 242 of the first secondary air passage is higher than the shield 6 to avoid the shield 6 interfering with the communication of the first secondary air passage 24 with the outer fire hole.

Optionally, the gas burner further comprises an inner fire cover 11 and a base plate 3.

The inner fire cover 11 is provided with an inner fire hole and is positioned at the inner side of the outer fire cover 12; the bottom plate 3 is positioned below the energy collecting cover 2 and defines a second secondary air channel 4 with the energy collecting cover 2, the vent 2211 is positioned above an outlet 42 of the second secondary air channel, and the outlet 42 of the second secondary air channel is communicated with the inner fire hole. The direction of flow of secondary air in the second secondary air channel is shown by the lower arrows in fig. 2.

The inlet 41 of the second secondary air channel is arranged at the outer edge of the lower cover 23 or between the lower cover 23 and the bottom plate 3, outside air enters the second secondary air channel 4 through the inlet 41 of the second secondary air channel and flows out from the outlet 42 of the second secondary air channel, and secondary air flowing out from the outlet 42 of the second secondary air channel flows towards the upper edges of the inner fire hole or the outer fire hole to reach the upper edges of the inner ring fire and the outer ring fire, wherein the inner fire hole forms the inner ring fire.

The secondary air that flows out through vent 2211 supplyes secondary air for outer ring fire, and the secondary air is supplyed on the reason for interior ring fire and outer ring fire to second secondary air passageway 4, and vent 2211 is located the top of second secondary air passageway's export 42 for the secondary air that flows out of vent 2211 and the secondary air position that flows out of second secondary air passageway's export 42 are different, avoids outer ring fire and interior ring fire to strive for secondary air, avoids the secondary air that second secondary air passageway 4 flows out and the secondary air that first secondary air passageway 24 flows to flow the confusion.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify 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 shaped energy concentrating cover of a gas stove is characterized by comprising:

an upper cover;

the lower cover is positioned below the upper cover and forms a first secondary air channel for supplementing secondary air to a burner of the gas stove with the upper cover in an enclosing way;

the upper shield or the lower shield includes the inside wall, the inside wall includes:

a first side wall section provided with a vent hole communicated with the outlet of the first secondary air passage;

a second sidewall section connected below the first sidewall section, a distance between the first sidewall section and the combustor being greater than a distance between the second sidewall section and the combustor.

2. The energy concentrating cover for a gas range according to claim 1,

the first sidewall section has an inner diameter greater than an inner diameter of the second sidewall section.

3. The energy concentrating cover for a gas range according to claim 1,

the first sidewall section extends in an up-down direction.

4. The energy concentrating cover for a gas range according to claim 1, wherein the inner sidewall further comprises:

and a third side wall section connected between the first side wall section and the second side wall section and forming a part of a wall surface of the first secondary air passage, the third side wall section being inclined inward in a top-down direction.

5. Energy concentrating cover of a gas range according to any of claims 1 to 4,

the inner side wall is connected with the upper cover;

the energy concentrating shield further comprises:

and the inner folding edge is connected to the inner side of the lower cover and positioned on the outer side of the second side wall section, and the distance between the inner folding edge and the second side wall section ranges from 0.2mm to 1.0 mm.

6. Energy concentrating cover of a gas range according to any of claims 1 to 4,

the number of the vent holes is multiple, and the vent holes are sequentially arranged along the circumferential direction of the energy gathering cover.

7. A gas range, comprising:

the burner comprises an outer fire cover, wherein the outer fire cover is provided with an outer fire hole;

the energy concentrating cover of any one of claims 1 to 6, which is sleeved on the outer side of the fire outer cover, and the vent hole is communicated with the fire outer hole.

8. The gas range of claim 7, wherein the burner further comprises:

the gas distribution disc is communicated with the outer fire hole, and the second side wall section is sleeved on the outer side of the gas distribution disc and has a gap with the gas distribution disc.

9. The gas range of claim 7, wherein the burner further comprises:

the gas distribution disc is communicated with the outer fire hole, and the second side wall section is sleeved on the outer side of the gas distribution disc;

the gas range further comprises: a shield disposed between the second sidewall segment and the gas distribution plate.

10. The gas range of any one of claims 7 to 9, wherein the burner further comprises:

the inner fire cover is provided with an inner fire hole;

the gas range further comprises: the bottom plate is positioned below the energy collecting cover and defines a second secondary air channel with the energy collecting cover, the vent hole is positioned above an outlet of the second secondary air channel, and the outlet of the second secondary air channel is communicated with the inner fire hole.

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