CN110617476B

CN110617476B - Gas distribution plate, burner and household gas equipment

Info

Publication number: CN110617476B
Application number: CN201910863967.5A
Authority: CN
Inventors: 唐松茂; 谭泳龙; 张炳卫; 何贤德
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2021-02-23
Anticipated expiration: 2039-09-12
Also published as: CN110617476A

Abstract

The invention discloses a gas distribution disc, a burner and household gas equipment, wherein the gas distribution disc is made of a first material and comprises an inner ring cavity, the inner ring cavity is provided with an inner ring cavity, the outer side wall of the inner ring cavity is provided with an installation through hole communicated with the inner ring cavity, the installation through hole is provided with a fire transfer piece made of a second material, the fire transfer piece is provided with a fire transfer hole communicated with the inner ring cavity, the temperature-resistant temperature of the first material is lower than that of the second material, and the first material is aluminum. Among the above-mentioned gas distribution plate, pass the fire piece through installing the second material of higher aluminium high temperature resistance on the gas distribution plate of aluminium system and making for gas distribution plate is keeping under the condition of certain cost and processing advantage, also can guarantee to pass the fire hole and be difficult to the deformation when the gas burning, this job stabilization and the life who guarantees the combustor.

Description

Gas distribution plate, burner and household gas equipment

Technical Field

The invention relates to the technical field of burners, in particular to a gas distribution plate, a burner and household gas equipment.

Background

In the burner of the related art, the air distribution plate of the burner is generally made of aluminum material because the aluminum material is easy to form and low in cost. The ignition device and the thermocouple of the burner are arranged on the gas distribution plate, therefore, the gas distribution plate is provided with gas outlet holes for detecting the ignition device and the thermocouple, the gas is sprayed from the gas outlet holes and is ignited by the ignition device to burn, and the thermocouple is used for detecting whether flame exists in the gas outlet holes to prevent the gas from leaking. However, after the gas is ignited at the gas outlet, the aluminum material is easily deformed due to high temperature, which causes unstable operation of the burner and affects the service life of the burner.

Disclosure of Invention

The embodiment of the invention provides a gas distribution plate, a burner and household gas equipment.

According to the air distribution disc provided by the embodiment of the invention, the air distribution disc is made of a first material, the air distribution disc comprises an inner ring cavity, an inner ring cavity is formed in the inner ring cavity, an installation through hole communicated with the inner ring cavity is formed in the outer side wall of the inner ring cavity, a fire transfer piece made of a second material is installed in the installation through hole, a fire transfer hole communicated with the inner ring cavity is formed in the fire transfer piece, the temperature resistance temperature of the first material is lower than that of the second material, and the first material is made of aluminum.

Among the above-mentioned gas distribution plate, pass the fire piece through installing the second material of higher aluminium high temperature resistance on the gas distribution plate of aluminium system and making for gas distribution plate is keeping under the condition of certain cost and processing advantage, also can guarantee to pass the fire hole and be difficult to the deformation when the gas burning, this job stabilization and the life who guarantees the combustor.

In certain embodiments, the second material comprises copper or ceramic. Therefore, on the premise of fully utilizing the characteristics of the material, the cost is greatly saved.

In some embodiments, pass the fire spare and include installation department and steady flame portion, the installation department is installed installation through-hole, steady flame portion connects the installation department, it wears to establish to pass the fire hole the installation department with steady flame portion, steady flame portion sets up flutedly, steady flame groove has been seted up to the lateral wall of recess, steady flame hole has been seted up to the diapire of recess, steady flame hole intercommunication pass the fire hole. So, the installation of the biography fire piece of being convenient for of setting up of installation department, the setting up of steady flame portion can make the flame burning that the biography fire hole formed more stable, avoids the flame that the biography fire hole formed to leave the flame or flame out.

In some embodiments, the number of the flame holding grooves is multiple, and the flame holding grooves are arranged at intervals along the circumferential direction of the flame-transmitting piece; and/or

The number of the flame stabilizing holes is multiple, and the flame stabilizing holes surround the flame transfer holes and form through holes on the bottom wall of the groove. Therefore, the flame stabilizing grooves and/or the flame stabilizing holes are/is arranged, so that the flame stabilizing of the flame transfer holes is more stable.

In some embodiments, the flame-transmitting member is mounted to the mounting through-hole by at least one of: interference fit, threaded connection and welding. In this way, the fire transmission member can be mounted in the mounting through hole in any combination of the above three ways.

In some embodiments, the gas distribution plate includes an outer ring cavity surrounding the inner ring cavity, and a plurality of connection portions connecting the outer ring cavity and the inner ring cavity, the connection portions being disposed at intervals, two inclined surfaces being formed on the upper surfaces of the connection portions along two opposite sides of the gas distribution plate in the circumferential direction, respectively, and the inclined surfaces being inclined from the outer side of the connection portions to the inner side. Therefore, the inner ring fire formed by the inner fire cover arranged on the inner ring cavity can be supplemented with enough secondary air.

In some embodiments, the outer ring cavity is provided with an outer ring cavity, the connecting portion is provided with a gas channel communicated with the outer ring cavity, two sides of one end of the connecting portion connected with the outer ring cavity are provided with cavity portions, and the cavity portions are provided with cavities communicated with the gas channel and the outer ring cavity. So, when the gas got into the outer ring chamber from the gas passageway, owing to be equipped with two cavitys in the connecting portion one end of connecting the outer ring cavity for the gas can diffuse as early as possible in the outer ring chamber, and in addition, the cavity also can play the gas deceleration effect, avoids the gas velocity of flow that the outer fire lid sprays from the outer ring cavity too fast and leads to the condition from the flame.

The burner provided by the embodiment of the invention comprises the gas distribution plate in any one of the above embodiments.

The embodiment of the invention provides household gas equipment, which comprises the burner in any one of the above embodiments.

Above-mentioned combustor and domestic gas equipment, through the biography fire piece that the installation is made than aluminium high temperature resistant second material on the gas distribution dish of aluminium system for the gas distribution dish is keeping under the condition of certain cost and processing advantage, also can guarantee to pass the fire hole and be difficult to warp when the gas burning, and this job stabilization and the life of guaranteeing combustor and domestic gas equipment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a gas distribution plate according to an embodiment of the present invention;

FIG. 2 is a top view of a gas distribution plate according to an embodiment of the present invention;

FIG. 3 is another perspective view of the gas distribution plate of an embodiment of the present invention;

FIG. 4 is a schematic perspective view of portion X of the gas distribution plate of FIG. 1;

FIG. 5 is a schematic cross-sectional view of a gas distribution plate according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of section XI of the gas distribution plate of FIG. 5;

FIG. 7 is a schematic plan view of a flame transfer element according to an embodiment of the invention;

FIG. 8 is a perspective view of a flame transmitting member according to an embodiment of the invention;

FIG. 9 is another perspective view of a flame transmitting member according to an embodiment of the invention;

fig. 10 is another schematic cross-sectional view of a gas distribution plate according to an embodiment of the present invention.

Description of the main element symbols:

a gas distribution plate 10;

the gas burner comprises an inner ring cavity 101, an inner ring cavity 102, a mounting through hole 103, an outer ring cavity 104, an outer ring cavity 105, a through hole 106, a flame transfer piece 110, a flame transfer hole 111, a mounting part 112, a flame stabilizing part 113, a groove 114, a flame stabilizing groove 115, a flame stabilizing hole 116, a connecting part 121, a gas channel 122, a cavity part 123, a cavity 124 and an inclined plane 125;

electrical component 212, top 213, positioning portion 214.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The disclosure herein provides many different embodiments or examples for implementing different configurations of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1, 3 and 5, in the gas distribution plate 10 according to the embodiment of the present invention, the gas distribution plate 10 is made of a first material, the gas distribution plate 10 includes an inner ring cavity 101, the inner ring cavity 101 is provided with an inner ring cavity 102, an outer side wall of the inner ring cavity 102 is provided with a mounting through hole 103 communicated with the inner ring cavity 102, the mounting through hole 103 is provided with a fire transmitting member 110 made of a second material, the fire transmitting member 110 is provided with a fire transmitting hole 111 communicated with the inner ring cavity 102, a temperature resistance temperature of the first material is lower than a temperature resistance temperature of the second material, and the first material is an aluminum material.

In the gas distribution plate 10, the fire transfer piece 110 made of the second material with higher temperature resistance than aluminum is arranged on the gas distribution plate 10 made of aluminum, so that the gas distribution plate 10 can ensure that the fire transfer holes 111 are not easy to deform during gas combustion under the condition of keeping certain cost and processing advantages, and the working stability and the service life of the combustor are ensured.

Specifically, the middle part of the gas distribution plate 10 is provided with a through hole 106 penetrating through the gas distribution plate 10, the whole gas distribution plate 10 is arranged around the axis direction of the through hole 106, the inner ring cavity 101 is distributed around the outer side of the through hole 106 in an annular shape, the inner ring cavity 102 also surrounds the through hole 106, and the fire transfer piece 110 is fixedly connected to the installation through hole 103 in a penetrating manner. The through hole 106 is used for the dry-burning prevention probe to penetrate.

It can be understood that since the second material is more resistant to high temperature than the first material, the distributor 10 is applicable to a working environment with a higher temperature, and meanwhile, since the overall structure of the flame-transmitting member 110 in direct contact with the flame is smaller, the cost required for using the second material is not high, the distributor 10 can adopt the first material with a lower cost, and thus, on the premise of fully utilizing the characteristics of the materials, the cost is also greatly saved. The second material may include, but is not limited to, high temperature resistant materials such as copper, ceramic, etc., and preferably, the second material is copper. It can be understood that the melting point of copper is far higher than that of aluminum, so copper is more high temperature resistant and more stable than aluminum, and for the fire transfer piece 110, because the fire transfer piece needs to be in a high temperature environment for a long time, in order to solve the problem that the gas distribution plate 10 made of aluminum is not high temperature resistant and easily causes the deformation of the fire transfer hole 111 and affects the working stability of the burner, the fire transfer piece 110 made of copper can more enable the fire transfer hole 111 to keep the original designed shape, and the working life of the burner is longer and more stable.

In some embodiments, the flame-transmitting member 110 includes a mounting portion 112 and a flame stabilizing portion 113, the mounting portion 112 is mounted in the mounting through hole 103, the flame stabilizing portion 113 is connected to the mounting portion 112, the flame-transmitting hole 111 penetrates through the mounting portion 112 and the flame stabilizing portion 113, the flame stabilizing portion 113 is provided with a groove 114, a side wall of the groove 114 is provided with a flame stabilizing slot 115, a bottom wall of the groove 114 is provided with a flame stabilizing hole 116, and the flame stabilizing hole 116 is communicated with the flame-transmitting hole 111. Thus, the installation of the installation part 112 facilitates the installation of the flame-transmitting member 110, and the installation of the flame stabilizing part 113 stabilizes the combustion of the flame formed by the flame-transmitting hole 111, thereby preventing the flame formed by the flame-transmitting hole 111 from leaving the flame or extinguishing the flame.

Referring to fig. 1, 4-6, the mounting portion 112 is mounted and connected to the mounting through hole 103, the flame holding portion 113 is limited and fixed on the outer sidewall surface of the mounting through hole 103 by the mounting portion 112, the flame propagation hole 111 penetrates the mounting portion 112 and the flame holding portion 113 along the axial direction of the mounting through hole 103, and in a specific embodiment, the flame propagation hole 111, the mounting portion 112 and the flame holding portion 113 have the same axis along the axial direction of the mounting through hole 103, so that the process treatment and the flame holding of the flame propagation member 110 can be facilitated.

It should be noted that the mounting through hole 103 is disposed on the gas distribution plate 10 in an inclined upward direction, and the axis of the mounting through hole 103 intersects with the axis of the through hole 106 at an acute angle, and accordingly, the flame-transmitting member 110 is also disposed on the gas distribution plate 10 in an inclined upward direction, so as to meet the characteristic that the gas will naturally diffuse upward, and avoid the situation that the gas will be closed and remain in the inner annular cavity 102.

In some embodiments, the number of the flame holding grooves 115 is plural, a plurality of the flame holding grooves 115 are spaced apart in the circumferential direction of the flame-transmitting member 110, and/or the number of the flame holding holes 116 is plural, and the plurality of the flame holding holes 116 surround the through-hole formed in the bottom wall of the groove 114 of the flame-transmitting hole 111. As such, by providing a plurality of flame holding grooves 115 and/or a plurality of flame holding holes 116, the flame holding to the fire hole 111 can be made more stable.

Specifically, in the example of fig. 7 to 9, the number of the flame holding grooves 115 is plural, the plural flame holding grooves 115 are arranged at intervals in the circumferential direction of the flame transfer member 110, and the number of the flame holding holes 116 is plural, the plural flame holding holes 116 are arranged at intervals in the circumferential direction around the flame transfer hole 111 at the bottom wall of the groove 114 and form a through-hole structure. In one example, the number of the flame holding grooves 115 is two, and they are spaced apart by 180 degrees in the circumferential direction of the flame propagation hole 111. The flame stabilizing holes 116 are formed in the bottom wall of the groove 114, and in one example, the number of the flame stabilizing holes 116 is four, and the flame stabilizing holes are distributed around the flame transmitting holes 111 at 90-degree intervals along the circumferential direction of the flame transmitting holes 111.

In this way, due to the arrangement of the flame stabilizing groove 115 and the flame stabilizing hole 116, the fuel gas sprayed from the flame transfer hole 111 is divided to decelerate the fuel gas, and the flame formed by the flame stabilizing hole 116 can firmly stabilize the flame formed by the flame transfer hole 111 from the root of the flame transfer hole 111, thereby achieving the effect of flame stabilization. It can be understood that the plurality of flame holding grooves 115 and the flame holding holes 116 are provided, the gas can maintain a slow and smooth flow rate, and thus, the flame can be controlled to be in a smooth state to some extent while the flame is uniformly distributed.

In one example, the flame propagation holes 111 extend through a bottom wall of the recess 114 and communicate with a plurality of flame stabilizing holes 116.

In addition, the number of the flame holding grooves 115 and/or the flame holding holes 116 may be changed according to a specific use case, and is not particularly limited.

In some embodiments, the flame-transmitting member 110 is mounted to the mounting through-hole 103 by at least one of: interference fit, threaded connection and welding.

In a specific embodiment, when the mounting through hole 103 has a threaded structure, the mounting portion 112 may also have a threaded structure, and the outer sidewall of the flame stabilizing portion 113 has a hexagonal structure along a cross section perpendicular to the axial direction of the flame propagation hole 111, so that the flame propagation member 110 can be mounted to the mounting through hole 103 by using a tool such as a hexagonal wrench, which is convenient for a user to operate.

In addition, the connection manner between the flame-transmitting member 110 and the mounting through hole 103 should be changed according to specific use conditions, and is not particularly limited herein. It is to be understood that the flame-transmitting member 110 may be mounted to the mounting through-hole 103 in any combination of the above three ways.

In some embodiments, the gas distribution plate 10 includes an outer ring cavity 104, the outer ring cavity 104 surrounds the inner ring cavity 101, the gas distribution plate 10 further includes a plurality of connecting portions 121 connecting the outer ring cavity 104 and the inner ring cavity 101, the plurality of connecting portions 121 are disposed at intervals, two inclined surfaces 125 are respectively formed on two circumferentially opposite sides of the connecting portion 121 along the gas distribution plate 10, and the inclined surfaces 125 are inclined from the outer side of the connecting portion 121 to the inner side. In this way, the inner fire formed by the inner fire cover disposed on the inner ring cavity 101 can be supplemented with sufficient secondary air.

Specifically, referring to fig. 1 to 3, the outer ring cavity 104 is distributed annularly around the outer side wall of the inner ring cavity 101, the outer ring cavity 104 is connected to the same end of the plurality of connecting portions 121, and the other ends of the plurality of connecting portions 121 are connected to the inner ring cavity 101, in this embodiment, the number of the connecting portions 121 is three, the three connecting portions 121 are distributed at intervals around the circumference of the through hole 106 along the outer side wall of the air distributor 10 and are uniformly spaced, and each inclined surface 125 is disposed obliquely upward, so that when the secondary air flows upward from the gap between two adjacent connecting portions 121, the inclined surfaces 125 at both sides can guide part of the secondary air to the position above the connecting portion 121, so that the secondary air supplement substantially the same as the secondary air supplement corresponding to the gap between two adjacent connecting portions 121 can be obtained for the inner ring fire above the connecting portion 121, thereby providing a more uniform secondary air supplement for the entire inner ring fire, the uniform combustion of the inner ring fire is ensured, and the situation that the smoke is increased due to the fact that the inner ring fire above the connecting part 121 cannot be supplemented with enough secondary air is avoided.

In addition, the installation through hole 103 is arranged in the middle of two of the connecting parts 121, so that the fire transfer holes 111 can be supplemented with enough secondary air, and the conditions that flame of the fire transfer holes 111 is not completely combusted to cause flameout and smoke increase are avoided. Specifically, in the example shown in fig. 1 to 3, the number of the connecting portions 121 is three, the number of the mounting through holes 103 is two, each mounting through hole 103 is located between two adjacent connecting portions 121, and one mounting through hole 103 is mounted with the flame-transmitting member 110. It is understood that in other embodiments, both mounting through holes 103 may also be mounted with a flame-transmitting member 110.

In some embodiments, the outer ring cavity 104 defines an outer ring cavity 105, the connecting portion 121 defines a gas passage 122 communicating with the outer ring cavity 105, two sides of one end of the connecting portion 121 connecting with the outer ring cavity 104 define a cavity portion 123, and the cavity portion 123 defines a cavity 124 communicating with the gas passage 122 and the outer ring cavity 105.

Referring to fig. 5, a gas channel 122 is formed in the connecting portion 121, the gas channel 122 is communicated with the inner ring cavity 102, a cavity portion 123 is respectively disposed along two sides of the connecting portion 121 at one end of the connecting portion 121 connected to the outer ring cavity 104, and a cavity 124 is formed in the two cavity portions 123. Thus, when the gas enters the outer ring cavity 105 from the gas channel 122, the two cavities 124 are arranged at one end of the connecting portion 121 connected with the outer ring cavity 104, so that the gas can be diffused into the outer ring cavity 105 as soon as possible, and the cavities 124 can also play a role in reducing the speed of the gas, thereby avoiding the situation that the gas ejected from the outer fire cover on the outer ring cavity 104 flows at an excessively high speed to cause flame leaving.

Specifically, the two cavities 124 are simultaneously communicated with the gas channel 122 and the outer ring cavity 105 at two sides of the connecting part 121, and the cross-sectional area of the communication part between the gas channel 122 and the outer ring cavity 105 is enlarged by respectively arranging one cavity part 123 at two sides of one end of each connecting part 121, so that gas can uniformly and quickly flow to the outer ring cavity 104 through the plurality of cavity parts 123 and finally fill the outer ring cavity 105, and time is saved.

The burner (not shown) provided by the embodiment of the invention comprises the gas distribution plate 10 of any embodiment.

Specifically, the combustor further comprises a bottom cup, an outer fire cover and an inner fire cover, wherein the gas distribution plate is arranged on the bottom cup, the outer fire cover is arranged on the outer ring cavity 104, and the inner fire cover is arranged on the inner ring cavity 101. The gas is introduced into the bottom cup through the external gas pipe, primary air is introduced into the bottom cup and mixed with the gas to form combustible mixed gas, the mixed gas is introduced into the gas distribution disc 10 by the bottom cup and introduced into the outer ring cavity 105 and the inner ring cavity 102 by the gas distribution disc, the combustible gas is respectively sprayed out from the fire holes of the outer fire cover and the inner fire cover, and the outer fire and the inner ring fire are formed after ignition.

In some embodiments, the outer sidewall of the bottom cup is provided with a fixing portion, the burner comprises an electrical component 212, the gas distribution plate 10 is provided with a positioning portion 214, the fixing portion corresponds to the positioning portion 214, the electrical component 212 penetrates through the fixing portion and the positioning portion 214, and the top 213 of the electrical component 212 corresponds to the gas outlet of the fire spreading hole 111. In this way, the electrical component 212 may be fixedly mounted, which facilitates the electrical component 212 to detect the flame of the fire-transmitting component 110.

Specifically, referring to fig. 10, the electrical component 212 is a cylindrical structure, the electrical component 212 penetrates through the fixing portion and the positioning portion 214 and is fixed on the fixing portion, the electrical component 212 has a top portion 213, and the top portion 213 corresponds to the air outlet of the fire hole 111. In one example, the electrical component 212 includes an ignition pin and the top 213 is provided with an ignition device for igniting gas emitted from the gas outlet of the flame-transmitting hole 111. In another example, the electrical component 212 comprises a thermocouple, and the top portion 213 is provided with a temperature probe for detecting whether gas is emitted from the gas outlet of the flame-transmitting hole 111 and burned to form a flame.

An embodiment of the present invention provides a household gas appliance (not shown) including the burner of the above embodiment.

Specifically, in one example, the household gas appliance may be a gas cooker, the gas cooker further comprising a housing, a panel, and a control structure, the panel being covered over the housing and having a mounting hole, the burner being partially located in the housing and exposed from the mounting hole, the control structure being provided on the panel and being for use by a user in controlling the gas cooker. In a specific embodiment, the control structure may be a knob structure, so that the control structure can be used for respectively controlling the gas delivery to the inside of the burner, and the flow rate of the gas is adjusted through the control structure so as to control the fire power of the burner. Therefore, the gas cooker can be suitable for various working environments, such as steaming, boiling, baking, frying and the like in cooking, and because the fire transfer piece 110 has the characteristic of high temperature resistance, the gas cooker can have longer working time under the condition that gas needs to be continuously combusted, and the applicability is improved.

In the present embodiment, the household gas appliance may be one of a liquefied gas range, a natural gas range, etc., and the gas distribution plate 10 may be applied to the above-mentioned operating state and may also be applied to other operating environments with high temperature and long time operation, and meanwhile, the gas distribution plate 10 may also be applied to other household gas appliances, such as an oven, a gas water heater, etc.

In the description of the specification, references to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The gas distribution plate is characterized by being made of a first material, the gas distribution plate comprises an inner ring cavity, an inner ring cavity is formed in the inner ring cavity, an installation through hole communicated with the inner ring cavity is formed in the outer side wall of the inner ring cavity, a fire transfer piece made of a second material is installed in the installation through hole, a fire transfer hole communicated with the inner ring cavity is formed in the fire transfer piece, the temperature-resistant temperature of the first material is lower than that of the second material, and the first material is an aluminum material;

pass the fire spare and include installation department and steady flame portion, the installation department is installed installation through-hole, steady flame portion connects the installation department, pass the fire hole and wear to establish the installation department with steady flame portion, steady flame portion sets up flutedly, the steady flame groove has been seted up to the lateral wall of recess, the steady flame hole has been seted up to the diapire of recess, steady flame hole intercommunication pass the fire hole.

2. The gas distribution disk of claim 1, wherein the second material comprises copper or ceramic.

3. The gas distribution plate according to claim 1, wherein the number of the flame holding grooves is plural, and the plural flame holding grooves are arranged at intervals along the circumferential direction of the flame transfer member.

4. The gas distribution plate according to claim 1, wherein the number of the flame stabilizing holes is plural, and the plural flame stabilizing holes surround the through holes formed on the bottom wall of the groove by the flame transfer holes.

5. The gas distribution plate of claim 1, wherein the flame-transmitting member is mounted in the mounting through-hole by at least one of: interference fit, threaded connection and welding.

6. The gas distribution disc according to claim 1, wherein the gas distribution disc comprises an outer ring cavity surrounding the inner ring cavity, and a plurality of connecting portions connecting the outer ring cavity and the inner ring cavity, the connecting portions are arranged at intervals, two inclined surfaces are respectively formed on the upper surfaces of the connecting portions along two opposite sides of the gas distribution disc in the circumferential direction, and the inclined surfaces are inclined from the outer side to the inner side of the connecting portions.

7. The gas distribution disc according to claim 6, wherein the outer ring cavity is provided with an outer ring cavity, the connecting portion is provided with a gas passage communicated with the outer ring cavity, two sides of one end of the connecting portion connected with the outer ring cavity are provided with cavity portions, and the cavity portions are provided with cavities communicated with the gas passage and the outer ring cavity.

8. A burner comprising a gas distribution plate according to any of claims 1 to 7.

9. A gas-fired household appliance comprising a burner as claimed in claim 8.