CN215336308U

CN215336308U - Gas kitchen ranges

Info

Publication number: CN215336308U
Application number: CN202120625742.9U
Authority: CN
Inventors: 苑善通; 方松青; 王书春; 贺立军; 张恩玉
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-12-28
Anticipated expiration: 2031-03-26

Abstract

The application relates to the technical field of gas cookers and discloses a gas stove. The gas range includes: the burner comprises an outer fire cover and an inner fire cover positioned on the inner side of the outer fire cover; the energy-gathering cover is sleeved on the outer side of the combustor and defines a first secondary air channel for supplying secondary air to the outer fire cover; the bottom plate is arranged below the energy-gathering cover and forms a second secondary air channel for supplying secondary air to the inner fire cover in an enclosing manner with the energy-gathering cover; and the air distributing piece is arranged between the outlet of the first secondary air channel and the outlet of the second secondary air channel so as to separate the first secondary air channel from the second secondary air channel. The problem that the secondary air reaching the inner fire cover is not enough in supply due to the fact that most of the secondary air reaches the outer fire cover is solved.

Description

Gas kitchen ranges

Technical Field

The application relates to the technical field of gas cookers, for example to a gas stove.

Background

The existing gas stove arranges and orients secondary air required by flame combustion to a certain extent by controlling the gap between the inner ring of the energy-collecting cover and the outer diameter of the outer fire cover, the height difference between the inner ring and the outer fire hole and the like, the secondary air enters from the opening of the energy-collecting cover under the actions of natural injection and thermal injection of flame of a burner, and part of the secondary air is guided to the outer side of the outer fire cover and is used for supplying the combustion of the flame of the outer fire cover; the other part enters the gap between the outer fire cover and the inner fire cover and is used for supplying the flame of the inner fire cover to burn.

However, the secondary air supply mode has the condition that the flame of the outer fire cover and the flame of the inner fire cover strive for secondary air, when the secondary air is divided, because the flame fire power of the outer fire cover is large, the corresponding airflow flow is large, the natural injection and thermal injection capabilities are strong, most of the secondary air reaches the outer fire cover, and the supply of the secondary air reaching the inner fire cover is insufficient.

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, which aims to solve the problem that most of secondary air reaches an outer fire cover, so that the supply of the secondary air reaching an inner fire cover is insufficient.

The embodiment of the present disclosure provides a gas stove, including: the burner comprises an outer fire cover and an inner fire cover positioned on the inner side of the outer fire cover; the energy-gathering cover is sleeved on the outer side of the combustor and defines a first secondary air channel for supplying secondary air to the outer fire cover; the bottom plate is arranged below the energy-gathering cover and forms a second secondary air channel for supplying secondary air to the inner fire cover in an enclosing manner with the energy-gathering cover; and the air distributing piece is arranged between the outlet of the first secondary air channel and the outlet of the second secondary air channel so as to separate the first secondary air channel from the second secondary air channel.

Optionally, the gas distributing member is inclined upward in an outside-in direction.

Optionally, the angle of the gas distribution piece to the vertical direction is 91-100 degrees.

Optionally, the gas distributor portion is located below the lower shroud.

Optionally, a gap or fit exists between the gas distribution piece and the lower cover.

Optionally, the gap has a height of 0.5mm to 3.0 mm.

Optionally, the burner further comprises: the gas distribution plate limits a gas channel, the gas channel is communicated with the inner fire cover and the outer fire cover, and the gas distribution piece is connected with the gas distribution plate and is positioned on the outer side of the gas distribution plate.

Optionally, the energy concentrating shield comprises: an upper cover; the lower cover is positioned below the upper cover and surrounds the upper cover to form the first secondary air channel; and the air outlet grille is connected to the inner side of the upper cover or the lower cover and is positioned between the upper cover and the lower cover, the grille holes of the air outlet grille form the outlet of the first secondary air channel, and the air outlet grille inclines upwards along the direction from outside to inside.

Optionally, the energy concentrating shield comprises: an upper cover; the lower cover is positioned below the upper cover and surrounds the upper cover to form the first secondary air channel; the air inlet grille is connected to the upper cover or the outer side of the lower cover, the grille holes of the air inlet grille form the inlet of the first secondary air channel, and the air inlet grille inclines downwards along the direction from outside to inside.

Optionally, the gas range further comprises: the blocking part is arranged on the upper surface of the energy-gathering cover in a protruding mode so as to increase the resistance of the smoke flowing back from the outer edge of the energy-gathering cover to the inside.

The gas stove provided by the embodiment of the disclosure can realize the following technical effects:

the air distribution piece is arranged at the outlet of the first secondary air channel and the outlet of the second secondary air channel, so that the secondary air flowing out of the outlet of the first secondary air channel and the secondary air flowing out of the outlet of the second secondary air channel are not mixed and do not interfere with each other, the phenomenon that the secondary air in the second secondary air channel mostly enters the outer fire cover outer side due to the natural injection of flame of the outer fire cover and the injection of heat is avoided, the secondary air can be pertinently supplied to the outer fire cover and the inner fire cover, and therefore the utilization rate of the secondary air and the combustion efficiency of fuel are 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 structural view of a gas range provided in an embodiment of the present disclosure;

FIG. 2 is a schematic view of a combustor according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view taken along line C-C of FIG. 1;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic view of a connection structure of a gas distribution plate and a gas distribution sheet according to an embodiment of the disclosure;

FIG. 6 is a schematic structural diagram of a gas distribution sheet provided in the embodiments of the present disclosure;

FIG. 7 is a schematic structural view of an upper housing provided by embodiments of the present disclosure;

fig. 8 is a schematic structural diagram of another upper cover provided by the embodiment of the disclosure.

Reference numerals:

10. a burner; 101. an inner fire cover; 102. an outer fire cover; 103. a gas distribution plate; 104. an outer fire hole; 105. an inner fire hole; 20. an energy-gathering cover; 201. an upper cover; 2011. an outer edge; 202. a lower cover; 203. a base plate; 204. a first secondary air passage; 205. a second secondary air passage; 206. air outlet grille 207 and air inlet grille; 30. a gas distribution member; 40. a gas distribution sheet; 401. a first secondary air flow path; 402. a second secondary air flow path; 403. a side wall; 404. a top wall; 4041. a first end portion; 4042. a second end portion; 50. a blocking portion; 60. and (4) a support.

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.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

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.

As shown in fig. 1 to 4, the gas stove provided by the embodiment of the present disclosure includes a burner 10, a concentrating cover 20 and a bottom plate 203, wherein the burner 10 includes an outer fire cover 102 and an inner fire cover 101, and the outer fire cover 102 is sleeved outside the inner fire cover 101; the energy gathering cover 20 is sleeved on the outer side of the combustor 10, the energy gathering cover 20 comprises an upper cover 201 and a lower cover 202, the lower cover 202 is positioned below the upper cover 201, and the upper cover 201 and the lower cover 202 enclose to form a first secondary air channel 204 for supplying secondary air to the outer fire cover 102; the bottom plate 203 is disposed below the lower cover 202, and forms a second secondary air passage 205 for supplying secondary air to the inner fire cover 101 by enclosing with the lower cover 202.

The inside and outside of the drawing show the inside and outside of the gas range, and the arrows show the flow direction of the secondary air in the gas range.

The outer fire cover 102 is provided with an outer fire hole 104, the inner fire cover 101 is provided with an inner fire hole 105, the flame at the outer fire hole 104 is outer ring fire, the flame at the inner fire hole 105 is inner ring fire, when the burner 10 works, the inner ring fire and/or the outer ring fire burn simultaneously to provide heat for a pot, wherein, the energy-gathering cover 20 can reflect the heat radiation diffused outwards when the burner 10 works to the pot, thereby realizing energy gathering.

As shown in fig. 3 and 4, the air distributing member 30 is provided between the outlet of the first secondary air passage 204 and the outlet of the second secondary air passage 205 to partition the first secondary air passage 204 and the second secondary air passage 205.

The air distributor 30 separates the secondary air flowing out from the outlet of the first secondary air channel 204 and the secondary air flowing out from the outlet of the second secondary air channel 205, so that the secondary air of the first secondary air channel 204 and the secondary air of the second secondary air channel 205 cannot be mixed, and particularly, the secondary air flowing out from the second secondary air channel 205 cannot flow to the outer fire due to the thermal injection and natural injection of the outer fire, so that the secondary air flowing out from the first secondary air channel 204 and the secondary air flowing out from the second secondary air channel 205 can be pertinently supplied to the outer fire cover 102 and the inner fire cover 101, and the utilization rate of the secondary air and the combustion efficiency of fuel are improved.

The air distributor 30 is inclined upward in the outside-in direction.

The gas distributing part 30 inclines upwards, the gas distributing part 30 is close to the flame of the combustor 10, due to the heat conduction effect, the temperature of the gas distributing part 30 is increased, the heat is also increased, on one hand, the contact area between the secondary air flowing out from the first secondary air channel 204 and the gas distributing part 30 is increased, the secondary air is fully preheated, the preheating efficiency of the secondary air is improved, the heat required by combustion when the secondary air reaches the outer fire cover 102 for combustion is saved, the energy of a gas stove is saved, meanwhile, the contact area between the secondary air flowing out from the second secondary air channel 205 and the gas distributing part 30 is also increased, and the preheating efficiency of the secondary air flowing out from the second secondary air channel 205 is improved. On the other hand, when the gas-cooker was used, the soup that the pan spilled over during the culinary art, residue etc. were followed branch gas spare 30 and are flowed to bottom plate 203 department downwards, divide gas spare 30 to lead the flow of soup for the soup can not get into combustor 10 and gather inside the energy cover 20, is convenient for clean the gas-cooker, protects the gas-cooker simultaneously, prolongs the life of gas-cooker.

The gas distributing member 30 is partially located below the lower cover 202.

The air distributor 30 extends below the lower cover 202, and on the one hand, the air distributor 30 can more completely separate the first secondary air channel 204 from the second secondary air channel 205, so that the secondary air flowing out of the first secondary air channel 204 does not mix with the secondary air flowing out of the second secondary air channel 205. On the other hand, the air distributing member 30 extends into the second secondary air passage 205, so that the contact area between the secondary air in the second secondary air passage 205 and the air distributing member 30 is increased, the preheating efficiency of the secondary air is improved, and the heat required by the secondary air reaching the flame of the burner 10 for combustion is saved, thereby saving the energy of the gas stove.

In one embodiment, the gas distributing member 30 may be attached to the lower housing 202.

The air distributing member 30 is attached to the lower surface of the lower cover 202, so that the first secondary air passage 204 and the second secondary air passage 205 are completely isolated and are not communicated with each other, and secondary air can be better and pertinently supplied to the outer fire cover 102 and the inner fire cover 101.

In another embodiment, a gap may exist between the gas distributing member 30 and the lower housing 202.

There is the clearance between branch gas spare 30 and the lower cover 202, and the hot water juice or the food waste that the pan of being convenient for spills over flows through the clearance, can not flow into and gather inside the energy cover 20, and the washing of the gas-cooker of being convenient for has also protected the gas-cooker simultaneously, has prolonged the life of gas-cooker.

Optionally, the gap between the gas distributing member 30 and the lower cover 202 is 0.5mm-3.0mm, for example, 0.5mm, 1.0mm, 2.0mm, 3.0 mm.

When the size of clearance is less than 0.5mm, increased the assembly degree of difficulty between minute air duct 30 and the lower cover 202, when the size of clearance is greater than 3.0mm, make the secondary air that first secondary air passageway 204 flows out and the secondary air that second secondary air passageway 205 flows out each other easily, and the interference takes place, the size of clearance is 0.5mm-3.0mm, can make the pan spill over soup juice or food waste flow out along minute air duct 30 on the one hand, on the other hand, can make first secondary air passageway 204 and second secondary air passageway 205 keep independent, reduce the secondary air that second secondary air passageway 205 flows out and receive the thermal injection and the natural injection effect of outer fire, make the secondary air flow direction that second secondary air passageway 205 flows out can not take place the skew, can the pertinence supply to inner fire lid 101 department.

Optionally, the angle of the gas-distributing member 30 to the vertical is 91 ° to 100 °, for example, 91 °, 93 °, 95 °, 96 °, 98 °, 100 °.

When the angle between the air distributing piece 30 and the vertical direction is less than 91 degrees, the assembly between the air distributing piece 30 and the energy-gathering cover 20 is more strict, the assembly difficulty is increased, when the angle between the air distributing piece 30 and the vertical direction is more than 100 degrees, the secondary air flowing out of the first secondary air channel 204 and the secondary air flowing out of the second secondary air channel 205 are easy to circulate and interfere, the angle between the air distributing piece 30 and the vertical direction is 91-100 degrees, on one hand, soup and residues overflowing from a cooker can conveniently flow out to the bottom plate 203 along the air distributing piece 30, on the other hand, the gap between the air distributing piece 30 and the energy-gathering cover 20 enables the first secondary air channel 204 and the second secondary air channel 205 to be kept independent, the thermal injection and natural injection effects of the external fire on the secondary air flowing out of the second secondary air channel 205 are reduced, and the flowing direction of the secondary air flowing out of the second secondary air channel 205 cannot be deviated, can be purposefully supplied to the inner fire cover 101.

The burner 10 further comprises a gas distribution plate 103, the gas distribution plate 103 defines a gas channel, the gas channel is communicated with the inner fire cover 101 and the outer fire cover 102, and the gas distribution piece 30 is connected with the gas distribution plate 103 and is positioned outside the gas distribution plate 103.

Divide gas piece 30 to connect on dividing gas dish 103, be convenient for divide fixed of gas piece 30, make the setting that divides gas piece 30 can be stable inside the gas-cooker, because divide gas dish 103 and outer fire lid 102 and interior fire lid 101 homogeneous phase intercommunication, divide gas dish 103 to receive the heat conduction effect of the flame of gas-cooker, the temperature of dividing gas dish 103 is higher, divide gas piece 30 and divide gas dish 103 to be connected, make and divide gas dish 103 to divide gas piece 30 heat transfer, thereby increase the heat of dividing gas piece 30 to the secondary air transmission, improve secondary air's preheating efficiency, improve the thermal efficiency of gas-cooker, the energy loss of gas-cooker is saved.

Optionally, the gas distributing member 30 has an annular shape extending along the circumferential direction of the gas distributing disk 103.

Optionally, the air distributing member 30 and the air distributing plate 103 are of an integral structure.

The energy collecting cover 20 is annular, the combustor 10 is also annular, the air distributing plate 103 is also annular, the secondary air channel is annular extending along the circumferential direction of the energy collecting cover 20, so that secondary air can be provided for flames of the combustor 10 along the circumferential direction, the air distributing piece 30 is also annular and is arranged on the outer side of the air distributing plate 103, the air distributing piece 30 can divide the secondary air channel into a first secondary air channel 204 and a second secondary air channel 205 along the circumferential direction, and the secondary air can uniformly reach the outer side of the outer fire cover 102 and the inner fire cover 101 along the first secondary air channel 204 and the second secondary air channel 205 in the circumferential direction respectively.

The upper cover 201 comprises an upper cover 201, the lower cover 202 comprises a lower cover 202, and the upper cover 201 is positioned above the lower cover 202; the energy-gathering hood 20 further includes an air outlet grille 206, the air outlet grille 206 is connected to the inner side of the upper hood 201 or the lower hood 202, grille holes of the air outlet grille 206 form outlets of the first secondary air channels 204, and the air outlet grille 206 is inclined upwards along the outside-in direction.

The air-out grid 206 is convenient for the secondary air in the first secondary air channel 204 to flow out and reach the outer fire cover 102, and the air-out grid 206 inclines upwards, so that the soup and food residue overflowing from the cookware are not easy to flow into the first secondary air channel 204 through the grid holes of the air-out grid 206, thereby protecting the inside of the energy-collecting cover 20, being convenient for the cleaning of the gas stove, and prolonging the service life of the gas stove.

Optionally, the angle of the air outlet grille 206 to the vertical direction is 1 ° -20 °, for example, may be 1 °, 5 °, 10 °, 15 °, 20 °, and so on.

Optionally, the grille holes of the outlet grille 206 are arranged uniformly in sequence along the circumferential direction of the upper cover 201 or the lower cover 202.

As shown in fig. 1 and 3, the grill holes of the air outlet grill 206 connected to the upper cover 201 are sequentially and uniformly arranged along the circumferential direction of the upper cover 201, and the air outlet grill 206 is connected to the inner side of the lower cover 202.

The energy-gathering cover 20 further comprises an air inlet grille 207, the air inlet grille 207 is connected to the outer side of the upper cover 201 or the lower cover 202, grille holes of the air inlet grille 207 form inlets of the first secondary air channels 204, and the air inlet grille 207 is inclined downwards along the outside-in direction.

The air inlet grille 207 is convenient for the secondary air to get into first secondary air channel 204 by the external world, and in addition, the air inlet check downward sloping for the soup that the pan spills over and food waste are difficult to flow into in first secondary air channel 204 through the grid hole of air inlet grille 207, thereby inside the protection gathers can cover 20, the cleanness of the gas-cooker of being convenient for, the life of extension gas-cooker.

Optionally, the angle of the air intake grille 207 to the vertical is 1 ° -20 °, for example, may be 1 °, 5 °, 10 °, 15 °, 20 °, etc.

Alternatively, the grille holes of the air intake grille 207 are arranged uniformly in sequence along the circumferential direction of the upper cover 201 or the lower cover 202.

As shown in fig. 1 and 3, the grill holes of the air-intake grill 207 connected to the upper cover 201 are arranged uniformly in order along the circumferential direction of the upper cover 201, and the air-intake grill 207 is connected to the outside of the lower cover 202.

Alternatively, the upper cover 201 and the lower cover 202 are of an integral structure, the upper cover 201 and the lower cover 202 may be connected to each other by welding, and the upper cover 201 and the lower cover 202 may also be of a separable structure.

Optionally, the gas burner further comprises a support 60, the support 60 being located between the concentrator cap 20 and the base plate 203, such that the concentrator cap 20 is supported above the base plate 203, and optionally the support 60 supports the lower cap 202 above the base plate 203.

Alternatively, the abutment 60 is annular extending circumferentially along the concentrator cap 20.

Optionally, a heat insulation pad, preferably a silica gel pad or heat insulation cotton, is provided between the support 60 and the energy concentrating cover 20.

Optionally, the support 60 is provided with a fixing hole, the heat insulation pad is installed in the fixing hole, the support 60 is connected with the lower cover 202 through the silica gel pad, optionally, the lower cover 202 is provided with a groove, the groove is matched with the heat insulation pad, so that the lower cover 202 and the support 60 are connected through the heat insulation pad, the heat insulation pad reduces the contact area between the lower cover 202 and the support 60, the heat of the lower cover 202 cannot be transferred to the support 60, and the heat loss of the gas stove is reduced. Meanwhile, the silica gel pad enables the energy gathering cover 20 not to slide easily, and stability is good.

Optionally, the number of the fixing holes is multiple, and the multiple fixing holes are uniformly arranged in sequence along the circumferential direction of the support 60, and preferably, the number of the fixing holes is 4.

Optionally, the distance between the seat 60 and the lower housing 202 is 0.5mm-5mm, for example, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5 mm.

The lower cover 202 is connected with the support 60 only through the silica gel pad, so that the integrated structure is also connected with the support 60 only through the silica gel pad, the upper cover 201 of the integrated structure is subjected to the effects of flame radiation, smoke heat conduction and the like of the combustor 10 to be heated rapidly, secondary air in the first secondary air channel 204 is contacted with the upper cover 201 and the lower cover 202, the temperature of the secondary air is increased, the preheating efficiency is increased, the secondary air in the first secondary air channel 204 is subjected to the effects of thermal ejection and natural ejection of outer ring fire and flows out of grid holes of the air outlet grid 206 to reach the root of flame of the outer ring fire, the secondary air required by the first secondary air channel 204 is continuously supplemented from the air inlet grid 207 along with the combustion, because the first secondary air channel 204 is relatively closed, only one inlet of the air inlet grid 207 and one outlet of the air outlet grid 206 are formed, and meanwhile, the flow passage area of the air inlet grid 207 is controlled, so that no excess secondary air in the first secondary air channel 204 is discharged and can only flow in the outside-in direction; so far, the heat that upper shield 201 transmitted first secondary air passageway 204 is all used for supplying outer ring fire burning, and simultaneously through the structure of integral type, the heat of lower shield 202 can't transmit to support 60, prevents the energy waste, improves energy utilization efficiency, simultaneously because of above-mentioned secondary air preheats efficiency better, can show the thermal efficiency that improves the gas-cooker after burning with outer ring fire mixture.

Alternatively, the support 60 includes a top wall connected to the lower surface of the lower housing 202, and side walls connected at the upper end thereof to the lower side of the top wall and at the lower end thereof to the bottom plate 203 for supporting the lower housing 202 on the bottom plate 203.

Optionally, the side walls and the top wall are arranged in sequence in an outward-inward direction.

Optionally, the lateral wall is equipped with air inlet through hole, and air inlet through hole's quantity is a plurality of, and a plurality of air inlet through hole set gradually along gathering the circumference of covering 20, and the secondary air of being convenient for passes through air inlet through hole and gets into in second secondary air passageway 205, and wherein, air inlet through hole's quantity can not be too much, prevents that unnecessary secondary air from spilling over to the external world through air inlet through hole.

Alternatively, the air inlet through holes are sequentially and uniformly arranged along the circumferential direction of the energy collecting cover 20.

Alternatively, as shown in fig. 4, the support 60, the lower cover 202 and the bottom plate 203 together enclose a second secondary air channel 205, when the secondary air flows in the second secondary air channel 205, the temperature of the lower cover 202 is raised by the heat conduction action of the flame of the burner 10, and has a certain amount of heat, the heat generated by the bottom plate 203 by the heat conduction action of the flame of the energy-concentrating cover 20 and the flame of the burner 10, when the secondary air flows in the second secondary channel, the secondary air can be preheated by both the lower cover 202 and the bottom plate 203, so as to improve the thermal efficiency of the secondary air, and at the same time, because the air distributor 30 is attached to the lower cover 202 or has a small gap, the secondary air in the second secondary air channel 205 cannot flow into the first secondary air channel 204 by the thermal injection and natural injection actions of the outer fire, the secondary air in the second secondary air channel 205 is completely supplied between the outer fire cover 102 and the inner fire cover 101, thereby ensuring the supply of secondary air required by the combustion of the inner ring fire at the inner fire cover 101.

Optionally, a support seat is disposed between the lower cover 202 and the bottom plate 203, the support seat supports the lower cover 202 above the bottom plate 203, a plurality of support seats are sequentially disposed at intervals along a circumferential direction of the lower cover 202, and optionally, the number of the support seats is 4.

The heat of the lower cover 202 rises due to the heat conduction action of the flame of the burner 10, the heat is easy to transfer to the surrounding parts through the heat conduction action, the lower cover 202 is supported between the bottom plates 203 by the support base, on one hand, the contact area of the lower cover 202 and the bottom plates 203 is reduced, so that the heat transferred from the lower cover 202 to the bottom plates 203 is reduced, the risk of cracking of the bottom plates 203 due to overhigh heat is reduced, on the other hand, secondary air enters from the bottom of the lower cover 202 and flows upwards to supplement the burner 10, the contact area of the secondary air and the lower cover 202 is increased, the preheating efficiency of the secondary air can be improved, the heat consumed by the secondary air reaching the flame of the burner 10 is reduced, and the energy consumed by a gas stove is reduced.

Optionally, a heat insulation pad is arranged between the lower cover 202 and the bottom plate 203, and the heat insulation pad may be a silica gel pad or heat insulation cotton, so that the lower cover 202 is not easy to slide relative to the bottom plate 203, heat conduction between the lower cover 202 and the bottom plate 203 is reduced, heat transferred to the bottom plate 203 through the lower cover 202 is reduced, and heat loss of the gas stove due to heat conduction between the lower cover 202 and the bottom plate 203 is reduced.

Alternatively, the heat insulating pad may be provided between the support base and the bottom plate 203, or between the support base and the lower cover 202.

Alternatively, the support base may be formed by extending the lower cover 202 partially downward in the circumferential direction so that the lower cover 202 is supported on the bottom plate 203.

Alternatively, the bottom plate 203 may be a drip tray or panel.

With reference to fig. 1 to 5, the flow path of the secondary air is explained as follows:

the external air is subjected to the natural injection and thermal injection effects of the flame of the burner 10, a part of air enters the first secondary air channel 204 along the air inlet grille 207, the part of air is secondary air, the secondary air is in contact with the lower surface of the upper cover 201 and the upper surface of the lower cover 202 in the first secondary air channel 204, the lower surface of the upper cover 201 and the upper surface of the lower cover 202 both transfer heat to the secondary air, so that the temperature of the part of secondary air is raised, the preheating efficiency of the secondary air is realized, the secondary air flows to the air outlet grille 206 in the first secondary air channel 204, after flowing out through the air outlet grille 206, the secondary air is subjected to the separation effect of the air distributing member 30 and the thermal injection and natural injection effects of the external ring fire, and the part of secondary air flows to the root of the external ring fire along the gap between the energy collecting cover 20 and the burner 10, and is subjected to the heat conduction of the burner 10 and the thermal radiation effects of the flame of the burner 10 in the flowing process, the secondary air temperature continues to rise, the preheating effect is improved, and after the secondary air reaches the root of the outer ring fire, the secondary air is supplied to the outer ring fire for combustion.

Meanwhile, the external air is subjected to the natural injection and thermal injection effects of the flame of the burner 10, the other part of the air enters the second secondary air channel 205 through the air inlet through hole, the part of the air is also secondary air, the secondary air is in contact with the lower surface of the lower cover 202 and the upper surface of the bottom plate 203 in the second secondary air channel 205 and is subjected to the heat conduction effects of the lower surface of the lower cover 202 and the upper surface of the bottom plate 203, the temperature is increased, the preheating is realized, when the air flows to the outlet of the second secondary air channel 205, the secondary air flows to the gap between the inner fire cover 101 and the outer fire cover 102 under the separation effect of the air distributing member 30 and the thermal injection and natural injection effects of the inner ring fire and the outer ring fire, the temperature of the secondary air is increased again under the heat radiation of the inner ring fire and the outer ring fire and the heat conduction effects of the burner 10 in the flowing process, the preheating effect is also improved, and finally the part of the secondary air reaches the root of the inner ring fire, secondary air is supplied for the inner ring fire.

Optionally, as shown in fig. 5 and 6, the gas range further includes an air distributing plate 40, and the air distributing plate 40 is disposed in the secondary air flow passage to divide the secondary air flow passage into a first secondary air flow passage 401 communicating the secondary air flow passage with the outer fire cover 102 and a second secondary air flow passage 402 communicating the secondary air flow passage with the inner fire cover 101.

The air dividing sheet divides the secondary air entering the secondary air flow channel, so that the first secondary air flow channel 401 and the second secondary air flow channel 402 are independent and do not interfere with each other, particularly, the secondary air in the second secondary air flow channel 402 does not interfere with the secondary air in the first secondary air flow channel 401, the secondary air can be pertinently supplied to the upper edge of the outer fire cover 102 and the inner fire cover 101, and the utilization rate of the secondary air and the combustion efficiency of fuel gas are improved.

Alternatively, with reference to fig. 5 and 6, the air distribution piece 40 includes a side wall 403, the side wall 403 is located in the secondary air flow channel, and the length of the side wall 403 along the circumferential direction of the air distribution disk 103 is the same as the length of the secondary air flow channel along the circumferential direction of the air distribution disk 103, which can be understood as follows: two wall surfaces of the side wall 403 along the circumferential direction of the air distributor 103 are respectively abutted against two wall surfaces of the secondary air flow channel 106 along the circumferential direction of the air distributor, the side wall 301 along the circumferential direction of the air distributor 103 is matched with the size of the secondary air flow channel, and two ends of the side wall 403 along the circumferential direction are respectively abutted against the inner wall of the secondary air flow channel, so that the first secondary air flow channel 401 and the second secondary air flow channel 402 are completely separated, and the secondary air of the first secondary air flow channel 401 and the secondary air of the second secondary air flow channel 402 are not interfered with each other, so that the secondary air can be pertinently supplied to the upper edge of the outer fire cover 102 and the inner fire cover 101, and the utilization rate of the secondary air and the combustion efficiency of fuel gas are improved.

Optionally, there are a plurality of secondary air flow channels, and the plurality of secondary air flow channels are sequentially arranged along the circumferential direction of the air distributor 103, wherein the number of the side walls 403 is equal to and corresponds to the number of the secondary air flow channels.

Optionally, the bottom end of the sidewall 403 is spaced further from the inner sidewall of the secondary air flow passage than the outer sidewall of the secondary air flow passage.

Optionally, the gas distribution piece 4 further comprises a top wall 404, the top wall 404 comprises a first end portion 4041 and a second end portion 4042 connected, the first end portion 4041 is connected to the top of the side wall 403, and the second end portion 4042 is located inside the first end portion 4041 and is inclined toward the inner fire cover 101.

Optionally, the top wall 404 is annular extending along the circumference of the gas distribution disk 103.

Optionally, the gas distribution disc 103 is located below the inner fire cover 101, the gas distribution disc 103 includes a plurality of hollow connecting ribs sequentially arranged along the circumferential direction of the gas distribution disc 103, a secondary air flow channel is formed between two adjacent connecting ribs, the hollow area forms at least part of a gas channel, and the first end portion 4041 abuts against the upper surfaces of the connecting ribs.

Optionally, the inner fire cover 101 is provided with inner fire holes 105, the inner fire holes 105 are sequentially arranged along the circumferential direction of the inner fire cover 101, wherein the height of the upper surface of the air distribution piece 40 is smaller than that of any one of the inner fire holes 105.

Optionally, the distance between the highest point of the upper surface of the top wall 404 of the gas distribution piece 40 and the lowest inner fire hole 105 of the inner fire cover 101 is 2mm-5mm, for example, 2mm, 3mm, 4mm, 5mm, etc.

Optionally, the horizontal distance between the air-distributing piece and the outer wall surface of the inner fire cover 101 is 5mm-7.5 mm.

Alternatively, the horizontal distance between the air-separating sheet 40 and the outer wall surface of the inner fire cover 101 is in the range of 5mm-7.5mm, such as 5mm, 6mm, 7mm, 7.5mm, etc.

Optionally, the first end portion 4041 extends downwardly or horizontally in an outside-in direction.

Optionally, the gas stove further comprises a blocking part 50, and the blocking part 50 is convexly arranged on the upper surface of the energy collecting cover 20 to increase the resistance of the smoke flowing back inwards from the outer edge of the energy collecting cover 20.

Alternatively, as shown in fig. 7 and 8, the blocking portion 50 is protruded from the upper surface of the upper cover 201, in other words, the blocking portion 50 is disposed on the upper surface of the upper cover 201 and protruded upward from the upper surface of the upper cover 201, so as to increase the resistance of the smoke flowing back inward from the outer edge 2011 of the upper cover 201.

The upper surface of upper shield 201 is upwards protruded to stop part 50 for stop part 50 can increase the resistance that the flue gas flows back, reduce the speed that the flue gas flows back, thereby increase the time that the flue gas dwells in the space between the upper surface of upper shield 201 and the bottom of a boiler, make the flue gas can carry out abundant heat transfer with the bottom of a boiler, improve the thermal efficiency of gas-cooker, and the combustible substance in the flue gas can carry out the postcombustion, further improve the thermal efficiency of gas-cooker.

Alternatively, as shown in fig. 7 and 8, the outer surface of the blocking portion 50 has a concavo-convex structure.

The concave-convex structure can increase the roughness of the outer surface of the blocking part 50, realize diffuse reflection, reflect the radiant heat of flame to the bottom of a boiler in a diffuse reflection mode, and improve the heat efficiency of the gas stove.

The rugged structure means that the outer surface of the barrier 50 is not smooth but rugged. After the radiant heat of the flame is radiated to the concave-convex structure and reflected by the concave-convex structure, the radiant heat is diffused to different directions.

Alternatively, as shown in fig. 7, the blocking portion 50 may be drill-shaped, as shown in fig. 8, and the blocking portion 20 may also be crescent-shaped, as well.

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

1. A gas range, comprising:

the burner (10) comprises an outer fire cover (102) and an inner fire cover (101) positioned on the inner side of the outer fire cover (102);

the energy gathering cover (20) is sleeved on the outer side of the combustor (10) and defines a first secondary air channel (204) for supplying secondary air to the outer fire cover (102);

a bottom plate (203) which is arranged below the energy collecting cover (20) and forms a second secondary air channel (205) for supplying secondary air to the inner fire cover (101) by enclosing with the energy collecting cover (20);

an air splitter (30) disposed between the outlet of the first secondary air channel (204) and the outlet of the second secondary air channel (205) to separate the first secondary air channel (204) and the second secondary air channel (205).

2. Gas burner according to claim 1,

the gas distribution member (30) is inclined upward in an outside-in direction.

3. Gas burner according to claim 2,

the angle between the gas distributing piece (30) and the vertical direction is 91-100 degrees.

4. Gas burner according to claim 1,

the gas distribution piece (30) is partially positioned below the energy collecting cover (20).

5. Gas burner according to claim 1,

and a gap is formed between the air distributing piece (30) and the lower surface of the energy-gathering cover (20) or the air distributing piece and the lower surface of the energy-gathering cover are attached to each other.

6. Gas range according to claim 5,

the height of the gap is 0.5mm-3.0 mm.

7. Gas burner according to any of the claims 1 to 6, characterized in that the burner (10) further comprises:

the gas distribution plate (103) is used for limiting a gas channel, the gas channel is communicated with the inner fire cover (101) and the outer fire cover (102), and the gas distribution piece (30) is connected with the gas distribution plate (103) and is positioned on the outer side of the gas distribution plate (103).

8. Gas burner according to any of the claims 1 to 6, characterized in that the shaped hood (20) comprises:

an upper cover (201);

a lower cover (202) which is positioned below the upper cover (201) and encloses the upper cover (201) to form the first secondary air channel (204);

and the air outlet grille (206) is connected to the inner side of the upper cover (201) or the lower cover (202) and is positioned between the upper cover (201) and the lower cover (202), the grille holes of the air outlet grille (206) form the outlet of the first secondary air channel (204), and the air outlet grille (206) inclines upwards along the direction from outside to inside.

9. Gas burner according to any of the claims 1 to 6, characterized in that the shaped hood (20) comprises:

an upper cover (201);

the air inlet grille (207) is connected in the outside of upper shield (201) or lower shield (202), the grid hole of air inlet grille (207) forms the entry of first secondary air passageway (204), along outside-in's direction, air inlet grille (207) downward sloping.

10. The gas range of any one of claims 1 to 6, further comprising:

and the blocking part (50) is convexly arranged on the upper surface of the energy-gathering cover (20) so as to increase the resistance of the smoke flowing back inwards from the outer edge (2011) of the energy-gathering cover (20).