CN215336323U - Divide gas subassembly and gas-cooker - Google Patents

Abstract

The application relates to the technical field of gas cookers, and discloses a gas distribution assembly and a gas stove. The gas distribution assembly defines an outer fuel gas flow channel, and the flow area of the outer fuel gas flow channel is increased along the flow direction of fuel gas in the outer fuel gas flow channel. Divide the gas subassembly to inject outer gas runner, outer gas runner is used for providing the gas to outer ring fire, and the through flow area of outer gas runner increases along with the flow direction of gas for the in-process resistance of the flow of gas in outer gas runner reduces, makes the gas can arrive outer ring fire department smoothly, thereby improves the gas supply of outer ring fire, makes the burning that outer ring fire can be more stable, improves the combustion efficiency of outer ring fire.

Description

Divide gas subassembly and gas-cooker

Technical Field

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

Background

At present, an outer gas flow channel is limited by a gas distribution assembly of an existing gas stove and is used for providing gas for an outer ring fire, but the gas distribution assembly has large flow resistance to the gas in the outer gas flow channel, so that the gas cannot smoothly reach the outer 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 distribution assembly and a gas stove, and aims to solve the problem that the gas distribution assembly has large flow resistance to gas in an outer gas flow channel, so that the gas cannot smoothly reach an outer ring fire.

The embodiment of the present disclosure provides a gas distribution assembly, which defines an outer gas flow channel, and a flow area of the outer gas flow channel is increased along a flow direction of gas in the outer gas flow channel.

Optionally, the height of the outer gas flow channel increases in the flow direction of the gas in the outer gas flow channel.

Optionally, an upper wall surface of the outer gas flow channel is at least partially inclined upward in a flow direction of the gas in the outer gas flow channel.

Optionally, the upper wall surface of the outer gas flow channel has an angle in the range of 5 ° to 45 ° with the horizontal direction.

Optionally, the gas distribution assembly includes an upper gas distribution member, the upper gas distribution member including: a first side wall; the first bottom wall is positioned below the first side wall and connected with the first side wall, a folded angle is formed at the joint of the first side wall and the first bottom wall, the first bottom wall and the first side wall are sequentially arranged along the flowing direction of the fuel gas in the outer fuel gas flow channel, and the lower surface of the first bottom wall forms the upper wall surface of the outer fuel gas flow channel; and a chamfer is arranged at the joint of the outer wall surface of the first side wall and the lower surface of the first bottom wall.

Optionally, the upper gas distributing member is provided with a fire hole communicated with the outer gas flow channel.

Optionally, the lower wall surface of the outer gas flow channel is at least partially inclined downwards in the flow direction of the gas in the outer gas flow channel.

Optionally, the lower wall surface of the outer gas flow channel has an angle in the range of 5 ° to 45 ° with the horizontal direction.

Optionally, the gas distribution assembly further comprises a lower gas distribution member, the lower gas distribution member comprising: a second bottom wall; the second bottom wall and the third bottom wall are sequentially arranged along the flowing direction of the fuel gas in the external fuel gas flow channel, wherein the lower wall surface of the external fuel gas flow channel comprises the upper surface of the second bottom wall and the upper surface of the third bottom wall; along the flowing direction of the fuel gas in the outer fuel gas flow channel, the upper surface of the second bottom wall is inclined downwards, the upper surface of the third bottom wall horizontally extends or inclines downwards, and the included angle between the upper surface of the second bottom wall and the horizontal direction is larger than that between the upper surface of the third bottom wall and the horizontal direction.

The embodiment of the present disclosure further provides a gas stove, including: the burner comprises an outer fire cover; in the air distribution assembly of any of the previous embodiments, an outer gas flow channel is in communication with the outer fire cover.

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

divide the gas subassembly to inject outer gas runner, outer gas runner is used for providing the gas to outer ring fire, and the through flow area of outer gas runner increases along with the flow direction of gas for the in-process resistance of the flow of gas in outer gas runner reduces, makes the gas can arrive outer ring fire department smoothly, thereby improves the gas supply of outer ring fire, makes the burning that outer ring fire can be more stable, improves the combustion efficiency of outer ring fire.

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 structural diagram of a gas distribution assembly provided in embodiments of the present disclosure;

FIG. 3 is a schematic view of a portion of a combustor according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of a portion of another combustor provided by embodiments of the present disclosure;

fig. 6 is a schematic sectional view taken along the direction B-B in fig. 5.

Reference numerals:

10. a burner; 101. an inner fire cover; 102. an outer fire cover; 1021. a fire outlet; 30. a gas distribution assembly; 301. an upper gas distributing part; 3011. a first side wall; 3012. a first bottom wall; 3013. chamfering; 302. a lower gas distributing member; 3021. a second bottom wall; 3022. a third bottom wall; 3023. a second side wall; 303. an external gas flow channel; 304. an internal combustion gas flow passage.

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.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or 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 6, the present embodiment provides an air distribution assembly 30, the air distribution assembly 30 defines an outer fuel gas flow channel 303, and the flow area of the outer fuel gas flow channel 303 increases along the flow direction of the fuel gas in the outer fuel gas flow channel 303.

The flow area in the application refers to that when the fuel gas flows in the pipeline, the cross section of the fuel gas perpendicular to the flow direction is the flow cross section.

Divide gas subassembly 30 to inject outer gas runner 303, the gas reaches outer ring fire department through outer gas runner 303, thereby for outer ring fire burning provides the gas, along the flow direction of the gas in outer gas runner 303, the flow area increase of outer gas runner 303, make the in-process resistance that the gas flows in outer gas runner 303 reduce, the gas can reach outer ring fire department smoothly, reduce the loss of gas when outer gas runner 303 flows, thereby guarantee the required gas of burning of outer ring fire, improve the combustion efficiency of outer ring fire.

The arrows in fig. 4 and 6 indicate the flow direction of the gas in the outer gas flow channel 303.

Alternatively, the flow area of the outer fuel gas flow passage 303 may be gradually increased in the flow direction of the fuel gas in the outer fuel gas flow passage 303.

The through flow area of outer gas runner 303 increases gradually for the gas can be gentle flow in outer gas runner 303, avoids because the runner sudden change appears, and it is inhomogeneous to cause the gas to flow, perhaps causes the loss to the gas, thereby reduces the combustion efficiency of outer ring fire.

Alternatively, the flow area of the outer fuel gas flow passage 303 may also be abruptly increased in the flow direction of the fuel gas in the outer fuel gas flow passage 303.

As shown in fig. 4, the height of the outer fuel gas flow channel 303 increases in the flow direction of the fuel gas in the outer fuel gas flow channel 303.

The height of the outer fuel gas flow channel 303 is increased, so that the flow area of the outer fuel gas flow channel 303 is increased, and the operation is simple and easy to realize by controlling the flow area of the outer fuel gas flow channel in the height direction.

Optionally, the air distribution assembly 30 further defines a secondary air flow passage, and the secondary air flow passage and the outer fuel gas flow passage 303 are arranged at intervals along the circumferential direction of the air distribution assembly 30.

Because the secondary air flow channel and the external fuel gas flow channel 303 are sequentially arranged at intervals along the circumferential direction of the air distribution assembly 30, the external fuel gas flow channel 303 increases the flow area by increasing the length of the circumferential direction, which causes the flow area of the secondary air flow channel to be reduced, and it can be understood that the external fuel gas flow channel 303 occupies the secondary air flow channel, and thus the amount of secondary air passing through the secondary air flow channel is insufficient.

Alternatively, the number of the outer gas flow channels 303 may be one or more, and a plurality of the outer gas flow channels 303 are sequentially arranged at intervals in the circumferential direction of the gas distribution assembly 30.

Alternatively, a plurality of outer fuel gas flow channels 303 are sequentially and uniformly spaced along the circumferential direction of the gas distribution assembly 30.

Alternatively, the number of secondary air flow passages is the same as the number of outer fuel gas flow passages 303 and corresponds one to one.

Alternatively, the plurality of secondary air flow channels and the plurality of outer fuel gas flow channels 303 are sequentially arranged at intervals in the circumferential direction of the air distribution assembly 30.

Alternatively, the plurality of secondary air flow channels and the plurality of external fuel gas flow channels 303 are sequentially and uniformly spaced along the circumferential direction of the air distribution assembly 30

Alternatively, the height of the outer fuel gas flow channel 303 may be gradually increased.

The height crescent of outer gas runner 303 makes the through-flow area crescent of outer gas runner 303 for the gas can be gentle flow in outer gas runner 303, avoids because the runner sudden change appears, makes the gas flow inhomogeneous, perhaps causes the loss to the gas, thereby reduces the combustion efficiency of outer ring fire.

Alternatively, the height of the outer fuel gas flow channel 303 may also be increased abruptly.

As shown in fig. 3, the upper wall surface of the outer fuel flow channel 303 is inclined at least partially upward in the flow direction of the fuel gas in the outer fuel flow channel 303.

The last wall tilt up of outer gas runner 303, make outer gas runner 303 highly increase along with the flow direction of the gas in outer gas runner 303, thereby make the flow area of outer gas runner 303 increase along with the gas flow direction in outer gas runner 303, thereby when making the gas flow in outer gas runner 303, the resistance reduces, the loss of gas reduces, thereby make the gas can arrive outer ring fire department smoothly, guarantee the required gas volume of outer ring fire burning, the combustion efficiency of outer ring fire improves.

Alternatively, the upper wall surface of the gas flow passage may be entirely inclined upward and the upper wall surface of the outer gas flow passage 303 may be partially inclined upward in the flow direction of the gas in the outer gas flow passage 303.

For example, along the flow direction of the fuel gas in the outer fuel gas flow channel 303, the upper wall surface of the outer fuel gas flow channel 303 may extend horizontally and then incline upward; or the device can be firstly inclined upwards and then horizontally extended.

As shown in fig. 4, the angle a between the upper wall surface of the outer fuel flow channel 303 and the horizontal direction is in the range of 5 ° to 45 °.

When the included angle between the upper wall surface of the outer gas flow channel 303 and the horizontal direction is less than 5 degrees, the inclination degree of the upper wall surface of the outer gas flow channel 303 is too small, the increase effect on the flow area of the outer gas flow channel 303 is too small, the reduction effect on the flow resistance of the gas is not obvious, and the gas still generates large resistance to the flow of the gas in the outer gas flow channel 303, so that the loss of the gas is caused; when the included angle between the upper wall surface of the outer gas flow channel 303 and the horizontal direction is greater than 45 degrees, the inclination degree of the upper wall surface of the outer gas flow channel 303 is too large, on one hand, under the condition that the flow area of the inlet of the outer gas flow channel 303 is not changed, the inclination degree of the upper wall surface of the outer gas flow channel 303 is too large, the occupied space of the gas distribution assembly 30 is increased, and the manufacturing cost of the gas stove is increased, on the other hand, under the condition that the occupied space of the gas distribution assembly 30 is not changed, the inclination degree of the upper wall surface of the gas flow channel is too large, so that the flow area of the inlet of the outer gas flow channel 303 is reduced, the quantity of gas entering the outer gas flow channel 303 is reduced, the insufficient supply quantity of gas reaching the outer ring fire is caused, and the combustion efficiency of the outer ring fire is reduced; in addition, the degree of inclination of the upper wall surface of the outer gas flow channel 303 is too large, so that the flow of the gas in the outer gas flow channel 303 is too fast, the gas flow is not uniform, the gas reaching the outer ring fire is not uniform, and the combustion of the outer ring fire is not uniform.

Alternatively, the angle between the upper wall surface of the outer fuel gas flow channel 303 and the horizontal direction ranges from 5 °, 10 °, 15 °, 20 °, 30 °, 40 °, 50 °.

As shown in fig. 4, the gas distribution assembly 30 includes an upper gas distribution member 301, and the upper gas distribution member 301 includes a first side wall 3011 and a first bottom wall 3012; the first bottom wall 3012 is located below the first side wall 3011 and connected to the first side wall 3011, and there is a dog-ear at the junction of the first side wall 3011 and the first bottom wall 3012, along the flow direction of the fuel gas in the external fuel gas flow channel 303, the first bottom wall 3012 and the first side wall 3011 are set up sequentially, the lower surface of the first bottom wall 3012 forms the upper wall of the external fuel gas flow channel 303; wherein, the junction of the outer wall surface of the first side wall 3011 and the lower surface of the first bottom wall 3012 is provided with a chamfer 3013.

The lower surface of the first bottom wall 3012 forms the upper wall surface of the external gas flow channel 303, it can be understood that the lower surface of the first bottom wall 3012 of the upper gas distributing member 301 is located in the external gas flow channel 303, the gas flows to the outer wall surface of the first side wall 3011 along the lower surface of the first bottom wall 3012, the first side wall 3011 is located on the upper side of the first bottom wall 3012, so that the gas can flow to the outer wall surface of the first side wall 3011 through the lower surface of the first bottom wall 3012, a chamfer is provided between the lower surface of the first bottom wall 3012 and the outer wall surface of the first side wall 3011, so that during the process that the gas flows to the outer wall surface of the first side wall 3011 from the lower surface of the first bottom wall 3012, the resistance is reduced, it can be understood that the chamfer 3013 increases the flow area of the external gas flow channel 303, the gas smoothly flows to the outer wall surface of the first bottom wall 3011 from the lower surface of the first bottom wall 3012, so that the gas can smoothly reach the external ring fire, and the gas supply amount of the external ring fire can be guaranteed, the combustion efficiency of the outer ring fire is improved.

Alternatively, the angle between the first side wall 3011 and the first side wall may be a right angle, an acute angle, or an obtuse angle.

Alternatively, as shown in fig. 4, the chamfer 3013 may be a slope that slopes upward in the direction of flow of the fuel gas in the outer fuel gas flow channel 303.

Alternatively, the chamfer may be an arc-shaped chamfer, and it is understood that, in the case of increasing the area of the external gas flow passage 303, the arc-shaped chamfer also makes the lower surface of the first bottom wall 3012 and the outer wall surface of the first side wall 3011 smoothly connected, thereby further reducing the resistance when the gas flows.

In a particular embodiment, the upper gas distributing member 301 may be an upper gas distributing plate.

In another specific embodiment, as shown in fig. 5 and 6, the upper gas distributing member 301 is provided with fire holes 1021 communicating with the outer gas flow channel 303.

It can be understood that: the upper gas distributing piece can be an outer fire cover 102, the outer fire cover 102 and the lower gas distributing piece 302 jointly define an outer gas flow channel 303, and the lower wall surface of the outer fire cover 102 is the upper wall surface of the outer gas flow channel 303, so that on one hand, the part of an upper gas distributing disc in the prior art is saved, and the manufacturing cost of the gas stove is saved; on the other hand, the loss of the gas flowing in the outer gas flow channel 303 is reduced, and the gas reaching the fire outlet 1021 of the outer fire cover 102 is ensured.

As shown in fig. 4, the lower wall surface of the outer fuel gas flow passage 303 is at least partially inclined downward in the flow direction of the fuel gas in the outer fuel gas flow passage 303.

The lower wall face of outer gas runner 303 is at least partly downward sloping, make outer gas runner 303 highly increase along with the flow direction of the gas in outer gas runner 303, thereby make the flow area of outer gas runner 303 increase along with the gas flow direction in outer gas runner 303, thereby when making the gas flow in outer gas runner 303, the resistance reduces, the loss of gas reduces, thereby make the gas can reach outer ring fire department smoothly, guarantee the required gas volume of outer ring fire burning, improve the combustion efficiency of outer ring fire.

Alternatively, the lower wall surface of the fuel gas flow channel may be entirely inclined downward, and the lower wall surface of the fuel gas flow channel may be partially inclined downward in the flow direction of the fuel gas in the outer fuel gas flow channel 303.

For example, along the flow direction of the fuel gas in the outer fuel gas flow channel 303, the lower wall surface of the outer fuel gas flow channel 303 may extend horizontally and then incline downward; or the water tank can be firstly inclined downwards and then horizontally extended.

As shown in fig. 4, the angle b of the lower wall surface of the outer fuel gas flow channel 303 with the horizontal direction is in the range of 5 ° to 45 °.

When the included angle between the lower wall surface of the outer gas flow channel 303 and the horizontal direction is less than 5 degrees, the inclination degree of the lower wall surface of the outer gas flow channel 303 is too small, the increase effect on the flow area of the outer gas flow channel 303 is too small, the reduction effect on the flow resistance of the gas is not obvious, and the gas is still lost due to large resistance; when the included angle between the lower wall surface of the outer gas flow channel 303 and the horizontal direction is greater than 45 degrees, the inclination degree of the lower wall surface of the outer gas flow channel 303 is too large, on one hand, under the condition that the flow area of the inlet of the outer gas flow channel 303 is not changed, the inclination degree increases the occupied space of the gas distribution assembly 30 too much, and the manufacturing cost of the gas stove is increased, on the other hand, under the condition that the occupied space of the gas distribution assembly 30 is not changed, the inclination degree of the lower wall surface of the gas flow channel is too large, so that the flow area of the inlet of the outer gas flow channel 303 is reduced, the amount of gas entering the outer gas flow channel 303 is reduced, the supply amount of gas reaching the outer ring fire is insufficient, and the combustion efficiency of the outer ring fire is reduced; in addition, the inclination degree of the lower wall surface of the outer gas flow channel 303 is too large, so that the gas in the outer gas flow channel 303 flows too fast, the gas flows unevenly, the gas reaching the outer ring fire is uneven, and the combustion of the outer ring fire is uneven.

Alternatively, the included angle of the lower wall surface of the outer fuel gas flow channel 303 with the horizontal direction is in the range of 5 °, 10 °, 15 °, 20 °, 30 °, 40 °, 50 °.

Optionally, an included angle between the upper wall surface of the outer fuel flow channel 303 and the horizontal direction may be equal to an included angle between the lower wall surface of the outer fuel flow channel 303 and the horizontal direction, so that the fuel gas in the outer fuel flow channel 303 is uniformly distributed in the upper and lower directions of the outer fuel flow channel 303, and thus the fuel gas can uniformly flow, the fuel gas reaching the outer ring fire is more uniform, and the combustion stability of the outer ring fire is improved.

For example, when the angle between the upper wall surface of the outer fuel gas flow channel 303 and the horizontal direction is 10 °, the angle between the lower wall surface of the outer fuel gas flow channel 303 and the horizontal direction is also 10 °.

As shown in fig. 4, the air distribution assembly 30 further includes a lower air distribution member 302, the lower air distribution member 302 includes a second bottom wall 3021 and a third bottom wall 3022, the third bottom wall 3022 is connected to the second bottom wall 3021, and the second bottom wall 3021 and the third bottom wall 3022 are sequentially arranged along the flow direction of the fuel gas in the outer fuel gas flow channel 303, wherein the lower wall of the outer fuel gas flow channel 303 includes the upper surface of the second bottom wall 3021 and the upper surface of the third bottom wall 3022; in the flow direction of the fuel gas in the outer fuel gas flow channel 303, the upper surface of the second bottom wall 3021 is inclined downward, and the upper surface of the third bottom wall 3022 is horizontally extended or inclined downward, wherein the included angle between the upper surface of the second bottom wall 3021 and the horizontal direction is larger than the included angle between the upper surface of the third bottom wall 3022 and the horizontal direction.

The upper surface of the second bottom wall 3021 and the upper surface of the third bottom wall 3022 are both located in the outer fuel flow channel 303, which can be understood as follows: an upper surface of the second bottom wall 3021 and an upper surface of the third bottom wall 3022, the upper surface of the second bottom wall 3021 being inclined downward in a flow direction of the gas in the outer gas flow channel 303 so that a flow area of the outer gas flow channel 303 is increased to reduce resistance during the gas flow, and the upper surface of the third bottom wall 3022 being horizontally extended so that the gas flows smoothly to the upper surface of the third bottom wall 3022 and the gas is accumulated on the upper surface of the third bottom wall 3022 so that the gas can uniformly flow out of the outer gas flow channel 303 from the upper surface of the third bottom wall 3022 to the outer ring fire; the third bottom wall 3022 is inclined downward, so that when gas flows to the upper surface of the third bottom wall 3022 through the upper surface of the second bottom wall 3021, resistance is reduced, loss in the gas flow process is reduced, an included angle between the upper surface of the second bottom wall 3021 and the horizontal direction is larger than an included angle between the upper surface of the third bottom wall 3022 and the horizontal direction, so that when gas flows to the upper surface of the third bottom wall 3022, the flow speed is reduced, the accumulation amount of gas is increased, the gas can uniformly flow to the outer ring fire, the combustion stability of the outer ring fire is ensured, and the combustion efficiency of the outer ring fire is improved.

Optionally, the lower gas distributing member 302 further includes a second side wall 3023, the second side wall 3023 is located above the third bottom wall 3022, and the third bottom wall 3022 and the second side wall 3023 are sequentially arranged along the flow direction of the gas in the outer gas flow channel 303, wherein a slope is disposed at a connection position between an upper surface of the third bottom wall 3022 and an inner wall surface of the second side wall 3023, the slope is inclined upward along the flow direction of the gas in the outer gas flow channel 303, the slope has a function of guiding the gas in the outer gas flow channel 303, and meanwhile, resistance to gas flow can be reduced, loss in gas flow can be reduced, and the amount of gas reaching the outer ring fire can be increased.

Optionally, the upper air distributing part 301 and the lower air distributing part 302 are detachably connected.

For example, the upper air distributing part 301 and the lower air distributing part 302 can be connected by screws, inserted, or clamped.

Optionally, the upper gas distributing member 301 and the lower gas distributing member 302 enclose to form an outer gas flow channel 303.

Optionally, air distribution assembly 30 also defines an internal combustion airflow channel 304.

Optionally, the upper air distributing member 301 and the lower air distributing member 302 enclose an internal combustion air flow channel 304.

Optionally, a chamfer is provided at a joint of the inner wall surface of the second side wall 3023 and the upper surface of the top wall of the second side wall 3023, so as to further increase the flow area of the gas flow and reduce the resistance of the gas flow.

With reference to fig. 1 to 6, the gas flow process in the external gas flow passage 303 is described:

the gas flows into the outer gas flow channel 303 through the inlet of the outer gas flow channel 303, the lower surface of the upper gas distribution member 301 is inclined upward along with the flow of the gas, so that the flow area of the gas is increased, meanwhile, the upper surface of the lower gas distribution member 302 is inclined downward, so that the flow area of the gas is also increased, the flow resistance of the gas in the outer gas flow channel 303 is reduced along with the increase of the flow area, when the gas flows to the joint of the lower surface of the first bottom wall 3012 and the outer wall surface of the first side wall 3011, the chamfer angle enables the gas to smoothly flow to the outer wall surface of the first side wall 3011, so that the resistance of the joint of the lower surface of the first bottom wall 3012 and the outer side surface of the first side wall 3011 to the gas is reduced, the smoothness of the gas flow is improved, the supply amount of the gas reaching the outer ring fire is ensured, meanwhile, the gas flowing through the upper surface of the second bottom wall 3021 flows to the upper surface of the third bottom wall 3022, because the inclination degree of the third bottom wall 3022 is smaller, the gas can be accumulated on the upper surface of the third bottom wall 3022 by a certain amount, and then the gas flows to the inner wall surface of the second side wall 3023 through the upper surface of the third bottom wall 3022, so that the gas can uniformly reach the outer ring fire due to the accumulation of the gas on the upper surface of the third bottom wall 3022 by a certain amount, and the combustion stability of the outer ring fire is improved.

The embodiment of the present disclosure further provides a gas stove, the gas stove includes a burner 10, the burner 10 includes an outer fire cover 102 and the gas distribution assembly 30 in any one of the above embodiments, and the outer fire cover 102 is communicated with an outer gas flow channel 303.

The gas stove provided by the embodiment of the present disclosure includes the gas distribution assembly 30 in any one of the above embodiments, so that the gas stove has all the beneficial effects of the gas distribution assembly 30 in any one of the above embodiments, and details are not repeated herein.

Optionally, an outer fire cover 102 is positioned above the gas distribution assembly 30.

Alternatively, as shown in fig. 5, the outer fire cover 102 and the gas distribution assembly 30 are sealed by a horizontal circumferential surface and a vertical circumferential surface, so that the gas cannot leak from the outer gas flow channel 303 or the inner gas flow channel 304, and it can be understood that the outer fire cover 102 and the gas distribution assembly 30 are sealed by an end surface seal and a radial seal.

Alternatively, the outer fire cover 102 is connected to both the upper air distributing part 301 and the lower air distributing part 302, the outer fire cover 102 abuts against the inner wall surface of the second side wall 3023, and meanwhile, the outer fire cover 102 abuts against the inner wall surface of the first side wall 3011, so that the outer fire cover 102 is connected to both the upper air distributing part 301 and the lower air distributing part 302.

Optionally, the gas range further comprises an inner fire cover 101, and the inner fire cover 101 is communicated with the inner gas flow channel 304.

Optionally, inner fire cover 101 is positioned above gas distribution assembly 30.

Alternatively, the inner burner cap 101 and the gas distribution assembly 30 are sealed by a horizontal circumferential surface and a vertical circumferential surface, so that the gas cannot leak from the internal combustion gas flow channel 304 or the internal combustion gas flow channel 304, and it can be understood that the inner burner cap 101 and the gas distribution assembly 30 are sealed by an end surface seal and a radial seal.

Optionally, the upper air distributing member 301 further includes a third sidewall, the third sidewall is connected to the first bottom wall 3012, the third sidewall is located above the first bottom wall 3012 and is disposed opposite to the first sidewall 3011, and the inner fire cover 101 abuts against an inner wall surface of the third sidewall.

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 gas distribution assembly (30),

the gas distribution assembly (30) defines an outer fuel gas flow channel (303), and the flow area of the outer fuel gas flow channel (303) is increased along the flow direction of fuel gas in the outer fuel gas flow channel (303).

2. Gas distribution assembly (30) according to claim 1,

the height of the outer gas flow channel (303) increases in the flow direction of the gas in the outer gas flow channel (303).

3. Gas distribution assembly (30) according to claim 1,

along the flowing direction of the fuel gas in the outer fuel gas flow channel (303), the upper wall surface of the outer fuel gas flow channel (303) is at least partially inclined upwards.

4. Gas distribution assembly (30) according to claim 3,

the included angle between the upper wall surface of the outer fuel gas flow channel (303) and the horizontal direction is 5-45 degrees.

5. The gas distribution assembly (30) of claim 1, wherein the gas distribution assembly (30) comprises an upper gas distribution member (301), the upper gas distribution member (301) comprising:

a first side wall (3011);

the first bottom wall (3012) is positioned below the first side wall (3011) and connected with the first side wall (3011), a folded angle is formed at the connection position of the first side wall (3011) and the first bottom wall (3012), the first bottom wall (3012) and the first side wall (3011) are arranged in sequence along the flowing direction of the fuel gas in the external fuel gas flow channel (303), and the lower surface of the first bottom wall (3012) forms the upper wall surface of the external fuel gas flow channel (303);

wherein, the junction of the outer wall surface of the first side wall (3011) and the lower surface of the first bottom wall (3012) is provided with a chamfer (3013).

6. Gas distribution assembly (30) according to claim 5,

the upper gas distribution piece (301) is provided with a fire outlet (1021) communicated with the outer gas flow channel (303).

7. Gas distribution assembly (30) according to any of claims 1 to 6,

the lower wall surface of the outer fuel gas flow channel (303) is at least partially inclined downwards along the flow direction of the fuel gas in the outer fuel gas flow channel (303).

8. Gas distribution assembly (30) according to claim 7,

the included angle between the lower wall surface of the outer fuel gas flow channel (303) and the horizontal direction is 5-45 degrees.

9. The gas distribution assembly (30) of claim 7, wherein the gas distribution assembly (30) further comprises a lower gas distribution member (302), the lower gas distribution member (302) comprising:

a second bottom wall (3021);

a third bottom wall (3022) connected to the second bottom wall (3021), the second bottom wall (3021) and the third bottom wall (3022) being sequentially arranged along a flow direction of the fuel gas in the external fuel gas flow channel (303), wherein a lower wall surface of the external fuel gas flow channel (303) includes an upper surface of the second bottom wall (3021) and an upper surface of the third bottom wall (3022);

along the flowing direction of the fuel gas in the outer fuel gas flow channel (303), the upper surface of the second bottom wall (3021) is inclined downwards, the upper surface of the third bottom wall (3022) horizontally extends or inclines downwards, wherein the included angle between the upper surface of the second bottom wall (3021) and the horizontal direction is larger than the included angle between the upper surface of the third bottom wall (3022) and the horizontal direction.

10. Gas burner, characterized in that it comprises a gas distribution assembly (30) according to any one of claims 1 to 9.

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