Gas stove

Abstract

The utility model discloses a gas stove, relates to the technical field of stoves, and aims to solve the problems that an existing blower device is complex in structure and poor in primary air and fuel mixing effect. The gas stove comprises a burner, an injection pipe, a nozzle and an air supply device. Wherein one end of the injection pipe is connected with the furnace end, and the nozzle is arranged at the other end of the injection pipe. The air supply device comprises an air supply assembly and a fan. The air supply assembly covers the other end of the injection pipe, an air channel is formed in the air supply assembly, and an air inlet and an air outlet which communicate with the air channel are formed in the air channel. And the air outlet is communicated with the interior of the injection pipe. The fan is arranged at the air inlet and connected with the air supply assembly. Wherein an installation hole is formed in the air supply assembly, the nozzle penetrates through the installation hole, the installation hole and the air channel are mutually independent, and a drainage opening communicated with the air channel is formed in the hole wall. And the drainage port is communicated with the injection pipe through the mounting hole. Therefore, primary air provided by the fan can be mixed with the fuel in the mounting hole. The gas stove provided by the utility model is used for cooking.

Description

Technical Field

[0001] The utility model relates to the technical field of cookers, in particular to a gas stove. Background Art

[0002] A gas stove refers to a kitchen appliance that uses gases such as liquefied petroleum gas, artificial gas, and natural gas as fuel for heating.

[0003] The main components of the most important combustion system in a gas stove include an ejector pipe, an injection device, a burner head, and a burner cap. The fuel is injected into the ejector pipe through the injection device. During the process of the fuel being injected into the ejector pipe, the high-speed flowing fuel will entrain primary air. The primary air and the fuel enter the ejector pipe and mix, and the primary air can provide oxygen for fuel combustion. However, the ability of the gas to naturally entrain primary air is limited, and when the primary air is insufficient, it will affect the thermal efficiency of the gas stove.

[0004] In order to solve the problem of insufficient primary air, in the related art, there is a structure that blows primary air into the ejector pipe through a blower device. However, the structure in the related art is complex, and the mixing effect of the primary air and the fuel is not good. Summary of the Utility Model

[0005] The utility model provides a gas stove, which includes a burner head, an ejector pipe, a nozzle, and an air supply device. Among them, one end of the ejector pipe is connected to the burner head, and the nozzle is arranged at the other end of the ejector pipe. The air supply device includes an air supply component and a blower. The air supply component covers the other end of the ejector pipe. An air duct is formed inside the air supply component. The air duct is provided with an air inlet and an air outlet that communicate with the air duct. The air outlet is communicated with the inside of the ejector pipe. The blower is arranged at the air inlet and is connected to the air supply component. Among them, the air supply component is provided with an installation hole, the nozzle passes through the installation hole, the installation hole is independent of the air duct, and a diversion port communicating with the air duct is arranged on the hole wall. The diversion port is communicated with the ejector pipe through the installation hole.

[0006] In this way, the primary air provided by the blower can flow into the installation hole through the diversion port, and the fuel ejected by the nozzle can be mixed with the air located on the inner wall of the installation hole. Thus, the problem that the air provided by the air supply device is not well mixed with the fuel is solved.

[0007] In some embodiments, the nozzle and the installation hole are arranged at intervals, and a diversion area is formed between the nozzle and the installation hole. The diversion area is communicated with the ejector pipe and is also communicated with the diversion port.

[0008] In some embodiments, along the air outlet from the end close to the ejector pipe to the end far from the ejector pipe, the air outlet gradually moves away from the axis of the installation hole, and the opening on the side of the air outlet close to the ejector pipe and the opening on the side of the air outlet far from the ejector pipe are arranged at intervals along the circumferential direction of the installation hole.

[0009] In some embodiments, the air supply assembly includes a front plate, a rear plate, and an enclosing plate. Among them, an installation portion is formed on the front plate, the installation portion is located inside the air duct of the air supply assembly, and an installation hole is formed on the installation portion. The air outlet is opened on the front plate, and the front plate covers the other end of the ejector tube. The rear plate is located on the side of the front plate away from the ejector tube. A nozzle avoidance hole is opened on the rear plate, and the nozzle avoidance hole is disposed opposite to the installation hole. The enclosing plate is located between the front plate and the rear plate, the enclosing plate is connected to the front plate, and the enclosing plate is connected to the rear plate. The front plate, the rear plate, and the enclosing plate enclose the air duct. Among them, a fan connection port is formed on the rear plate, the fan connection port is communicated with the air duct, and the fan connection port is also connected to the fan.

[0010] In some embodiments, the rear plate includes a rear plate main body and a fan connection plate. The rear plate main body is located on the side of the front plate away from the ejector tube, the nozzle avoidance hole is opened on the rear plate main body, and the rear plate main body, the enclosing plate, and the front plate enclose the air duct. One side of the fan connection plate is connected to the rear plate main body, and the other side of the fan connection plate encloses the fan connection port. The fan has a housing, a fan air outlet is formed on the housing, a part of the fan air outlet extends into the fan connection port, and the fan air outlet and the fan connection port are in mutual abutment.

[0011] In some embodiments, one end of the front plate close to the fan connection port forms a first bending portion, and the first bending portion of the front plate is an arc surface.

[0012] In some embodiments, a part of the air duct forms a pressure equalizing chamber, and the pressure equalizing chamber is formed by at least a part of the air duct close to the fan connection port. The pressure equalizing chamber is communicated with the air duct, and the pressure equalizing chamber is communicated with the fan connection port.

[0013] In some embodiments, a protruding portion is formed on the side of the installation portion close to the rear plate. When the front plate, the rear plate, and the enclosing plate are connected, the protruding portion is located inside the nozzle avoidance hole.

[0014] In some embodiments, a first natural ejection hole is opened on the front plate, a second natural ejection hole is opened on the rear plate, and the first natural ejection hole and the second natural ejection hole are disposed opposite to each other. The air supply assembly further includes a partition plate, the partition plate is located inside the air duct, and the partition plate is arranged around the circumference of the first natural ejection hole, one side of the partition plate is connected to the front plate, and the other side of the partition plate abuts against the rear plate.

[0015] In some embodiments, a first positioning ring is formed on the surface of the front plate on the side close to the ejector tube, the first positioning ring extends into the ejector tube, and the first positioning ring abuts against the inner wall of the ejector tube.

[0016] The present utility model provides a gas stove, including: a burner head having a gas mixing chamber;

[0017] An ejector tube, one end of which is connected to the burner head; a air supply device, including: an air supply assembly disposed at the other end of the ejector tube; the air supply assembly includes: a front plate located on the side close to the ejector tube;

[0018] A rear plate, located on the side of the front plate away from the ejector tube; a surrounding plate, which is located between the front plate and the rear plate, is connected to the front plate and the rear plate. The front plate, the rear plate and the surrounding plate enclose an air duct, and an air inlet is provided at one end of the air duct for introducing external air; an air guiding part, which is communicated with the air duct and the inside of the ejector tube, is used for introducing the air in the air duct into the ejector tube.

[0019] The front plate, the rear plate and the surrounding plate enclose the air duct of the air supply assembly. The air in the air duct is introduced into the ejector tube through the air guiding part, realizing the introduction of primary air. The structure of the air supply assembly can be used in combination with the existing ejector tube. Without additionally opening a new ejector tube, the supplementary primary air can be realized. At the same time, the structure is simple and easy to implement, the overall structure is concise, easy to produce and convenient to assemble. There is no need to add complex die structures and additional processing procedures. This solution has a compact structure and occupies a small space, and can be conveniently installed in the bottom shell cavity of the gas stove for use without major modifications.

[0020] In some embodiments, the gas stove includes a nozzle for injecting fuel into the ejector tube; an installation part is formed on the front plate, which is located in the air duct of the air supply assembly, and an installation hole is formed on the installation part. The nozzle passes through the installation hole.

[0021] In some embodiments, the air guiding part includes an air outlet, which is opened on the front plate and is arranged around the nozzle installation part.

[0022] In some embodiments, the air outlets are at least located on opposite sides of the nozzle installation hole respectively.

[0023] In some embodiments, there are at least two air outlets on one side around a nozzle installation hole.

[0024] In some embodiments, the air guiding part includes a drainage port, and a drainage port communicating with the air duct is opened on the hole wall of the installation hole; the drainage port is communicated with the inside of the ejector tube through the installation hole.

[0025] In some embodiments, the installation hole formed by the installation part includes a first section and a second section, which are communicated. The first section is closer to the ejector tube than the second section, and the aperture of the first section is larger than that of the second section. The drainage port is opened on the wall surface of the first section of the installation hole.

[0026] In some embodiments, a first natural injection hole is opened on the front plate, and a second natural injection hole is opened on the rear plate. The first natural injection hole and the second natural injection hole are arranged opposite to each other; the air supply assembly further includes a partition plate, which is located in the air duct and is arranged around the circumference of the first natural injection hole or the second natural injection hole. One side of the partition plate is connected to one of the front plate or the rear plate, and the other side of the partition plate abuts against the other of the rear plate or the front plate.

[0027] In some embodiments, a first positioning ring is provided on the surface of the front plate close to the ejector tube. The first positioning ring extends into the ejector tube and abuts against the ejector tube, and / or a second positioning ring is provided on the surface of the rear plate close to the front plate. The second positioning ring can abut against the shroud.

[0028] In some embodiments, the gas stove includes a blower. The blower is provided at the air inlet and is connected to the air supply assembly. A blower connection port is formed on the rear plate; the blower connection port is communicated with the air duct and is connected to the blower.

[0029] In some embodiments, a first bending portion is formed at one end of the front plate close to the blower connection port. The first bending portion of the front plate is an arc surface.

[0030] In some embodiments, the rear plate includes a first part close to the blower connection port, a second part far from the blower connection port, and a connecting part connecting the first part and the second part. The first part is farther from the front plate than the second part. Part of the shroud and the first part and the connecting part enclose a pressure equalizing chamber, and the pressure equalizing chamber is communicated with the blower connection port. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 Schematic diagram of a gas stove provided by an embodiment of the present application;

[0033] Figure 2 Schematic diagram of a burner head provided by an embodiment of the present application;

[0034] Figure 3 Schematic diagram of a nozzle provided by an embodiment of the present application;

[0035] Figure 4 Schematic diagram of a wind supply device provided by an embodiment of the present application (one);

[0036] Figure 5 Schematic diagram of a wind supply device provided by an embodiment of the present application (two);

[0037] Figure 6 Schematic diagram of an air supply assembly provided by an embodiment of the present application (one);

[0038] Figure 7 Schematic diagram of an air supply assembly provided by an embodiment of the present application (two);

[0039] Figure 8 The third schematic diagram of an air supply component provided by an embodiment of the present application;

[0040] Figure 9 The fourth schematic diagram of an air supply component provided by an embodiment of the present application;

[0041] Figure 10 The fifth schematic diagram of an air supply component provided by an embodiment of the present application;

[0042] Figure 11 The sixth schematic diagram of an air supply component provided by an embodiment of the present application;

[0043] Figure 12 The seventh schematic diagram of an air supply component provided by an embodiment of the present application;

[0044] Figure 13 The first schematic diagram of an installation part provided by an embodiment of the present application;

[0045] Figure 14 The second schematic diagram of an installation part provided by an embodiment of the present application;

[0046] Figure 15 The eighth schematic diagram of an air supply component provided by an embodiment of the present application;

[0047] Figure 16 The ninth schematic diagram of an air supply component provided by an embodiment of the present application;

[0048] Figure 17 The schematic diagram of a blower provided by an embodiment of the present application;

[0049] Figure 18 The schematic diagram of a protruding part provided by an embodiment of the present application;

[0050] Figure 19 The schematic diagram of a first positioning ring provided by an embodiment of the present application;

[0051] Figure 20 The schematic diagram of a second positioning ring provided by an embodiment of the present application;

[0052] Figure 21 The schematic diagram of an air regulating component in the related art.

[0053] Reference numerals:

[0054] 100 - Gas stove;

[0055] 11 - Bottom case; 10 - Installation cavity; 12 - Panel; 120 - Avoidance opening;

[0056] 21 - Burner head; 23 - Ejector pipe; 24 - Nozzle;

[0057] 31 - Air supply component; 30 - Air duct; 300 - Flow guiding area; 311 - Air inlet; 310 - Mounting hole; 3101 - First section; 3102 - Second section; 3100 - Drainage port; 312 - Air outlet; 32 - Fan; 320 - Housing; 3200 - Fan air outlet;

[0058] 51 - Front panel; 511 - Mounting part; 5110 - Protruding part; 52 - Rear panel; 520 - Nozzle avoidance hole; 521 - Rear panel main body; 522 - Fan connection plate; 53 - Enclosure; 530 - Fan interface;

[0059] 1001 - First connection part; 1002 - Second connection part; 1003 - First mounting hole; 1004 - Second mounting hole; 1005 - Third mounting hole;

[0060] 61 - First natural injection hole; 62 - Second natural injection hole;

[0061] 7 - Partition board;

[0062] 8 - First positioning ring;

[0063] 9 - Second positioning ring. Detailed implementation mode

[0064] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0065] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is the orientation or relative positional relationship based on the orientation shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. Without special instructions, in the case of meeting the relative positional relationship shown in the accompanying drawings, the above orientation descriptions can be flexibly set during the actual application process.

[0066] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0067] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "communication" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0068] In the embodiments of the present utility model, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, article or device. Without further limitation, an element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, article or device including such element.

[0069] In the embodiments of the present utility model, words such as "exemplary" or "for example" are used to mean for example, illustration or explanation. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present utility model should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0070] When selecting a gas stove, high efficiency and energy conservation are important factors of concern. Therefore, the continuous breakthrough of high efficiency of gas stoves is an important topic in the industry. In order to improve the thermal efficiency of a gas stove, a heat collecting plate can be used to reduce heat dissipation; or the height of the combustion flame can be reduced to make the distance between the bottom of the pot and the burner closer, reducing the space for heat dissipation, thereby reducing heat loss and improving energy efficiency. The air used for gas combustion in a gas stove is generally provided in two parts. One part is mixed with the gas before combustion and is called primary air. After the mixture of the gas and the primary air is ejected from the flame holes of the burner cap, it is mixed with the air in the environment and then burns. The air in the environment participating in combustion is called secondary air. It is the primary air that determines the flame height. The more primary air there is, the lower the flame height. Therefore, to reduce the flame height, the content of the primary air needs to be increased.

[0071] Specifically, the main components of the combustion system in a gas stove include an ejector pipe, an injection device, a burner head, and a burner cap. Fuel is injected into the ejector pipe through the injection device. During the process of fuel injection into the ejector pipe, the high-speed flowing fuel will entrain primary air. The primary air and the fuel enter the ejector pipe and mix, and the primary air can provide oxygen for fuel combustion. However, the ability of the gas to naturally entrain primary air is limited, and insufficient primary air will affect the thermal efficiency of the gas stove. In the conventional structure, the kinetic energy of the gas jet itself is relied on to entrain primary air, and the amount of entrained primary air is limited.

[0072] To solve the problem of insufficient primary air, in related technologies, it has been proposed to blow primary air into the ejector pipe through a blower device. However, the structure of blowing primary air into the ejector pipe in related technologies is either relatively complex, requiring the design of a complex air intake seat structure, with a corresponding complex mold and high cost, or it is necessary to change the existing supporting structure such as the ejector pipe or the gas intake direction, or the mixing effect of the newly introduced primary air and the fuel is poor, or the original natural entrainment structure needs to be cancelled, etc. Based on these problems existing in related technologies, the structure of the gas stove with a blower device of the present application will be introduced next.

[0073] Figure 1 It is a schematic diagram of a gas stove 100 provided by the present application.

[0074] The present application provides a gas stove, as Figure 1 shown, the gas stove 100 includes a housing 11, and the housing 11 forms an installation cavity 10 with an opening.

[0075] The opening is communicated with the installation cavity 10 so that other relevant components of the gas stove 100 can be installed in the installation cavity 10 of the housing 11.

[0076] The housing 11 can provide support for the relevant components installed in its installation cavity 10 and a certain degree of protection to prevent other relevant components of the gas stove 100 from being damaged.

[0077] As Figure 1 shown, the gas stove 100 provided by the present application further includes a burner head 21, and the burner head 21 is arranged in the installation cavity 10 of the housing 11. The burner head 21 forms an annular cavity with an opening, and through the burner head 21, the fuel and the primary air can be mixed in a certain way.

[0078] Continue to refer to Figure 1, the gas stove 100 provided by the present application further includes a panel 12, which can be covered on the opening of the housing 11. The panel 12 is used to seal the installation cavity 10 of the housing 11. In this way, the panel 12 can prevent sundries or food residues dropped during cooking from falling into the installation cavity 10 of the housing 11, thereby ensuring that other components arranged in the installation cavity 10 are not damaged or polluted, and further ensuring that the gas stove 100 can work properly.

[0079] In this case, as Figure 1 shown, an avoidance opening 120 is further formed on the above-mentioned panel 12. The burner head 21 is arranged opposite to the avoidance opening 120 formed on the panel 12, so that the burner head 21 can be located within the opening range of the avoidance opening 120 of the panel 12. In this way, when the combustion fuel of the burner head 21 generates a flame, the panel 12 will not block the flame generated by the combustion fuel of the burner head 21, ensuring that the burner head 212 can work properly, enabling the flame to heat the bottom of the cookware, so that the user can cook.

[0080] As can be seen from the above, a gas stove 100 provided by an embodiment of the present application includes a housing 11, a panel 12 and a burner head 21. Among them, the burner 2 can be installed in the installation cavity 10 of the housing 11, and then the installation cavity 10 of the housing 11 is sealed by the panel 12 to protect other components arranged in the installation cavity 10, ensuring that the burner head 21 and other components are not damaged, so as to ensure that the gas stove 100 can work properly.

[0081] In some embodiments, the gas stove 100 provided by the present application may further include a burner cap assembly, which is covered on the burner head 21. Fire holes are formed on the burner cap assembly, and the fire holes are communicated with the annular cavity of the burner head 21. In this way, the primary air and fuel that are mixed in the burner head 21 can flow out from the fire holes of the burner cap assembly covered on the burner head 21, and then be ignited to form a flame, and the flame heats the bottom of the cookware for the user to cook.

[0082] As Figure 2 shown, in certain embodiments, the gas stove 100 provided by the present application includes an ejector pipe 23, and one end of the ejector pipe 23 is connected to the burner head 21. Fuel and primary air can enter the burner head 21 through the ejector pipe 23 and continue to be mixed in the burner head 21.

[0083] In order to enable the fuel to enter the ejector pipe 23 and then enter the burner head 21 through the ejector pipe 23. In certain embodiments of the present application, as Figure 3 shown, the gas stove 100 provided by the present application includes a nozzle 24, and the nozzle 24 is arranged at the other end of the ejector pipe 23.

[0084] It should be noted that in order to enable the nozzle 24 to be arranged at the other end of the ejector pipe 23 so that the nozzle 24 can inject fuel into the ejector pipe 23, a nozzle fixing device is usually provided between the ejector pipe 23 and the nozzle 24 for fixedly installing the nozzle 24. The nozzle fixing device is connected to the ejector pipe 23, and the nozzle fixing device is also provided with a mounting hole for mounting and fixing the nozzle 24.

[0085] In this way, the gas supply pipeline is connected to the other end of the nozzle 24 (i.e., the end of the nozzle 24 far from the ejector pipe 23), and the fuel can be ejected through the nozzle 24. The gas jet ejected from the nozzle 24 can enter the ejector pipe, and at the same time, the gas jet can entrain the air near the nozzle 24. The entrained air serves as primary air and enters the ejector pipe 23 together with the fuel, and the primary air and the fuel can be mixed in the ejector pipe 23.

[0086] The process of the above-mentioned gas jet injecting into the ejector pipe 23 and entraining primary air is called natural entrainment. When the gas is ejected from the nozzle at a certain speed and pressure, a high-speed jet will be formed. During the flow of this jet, its speed is higher than the surrounding air, and a local negative pressure area will be formed near the gas jet, thereby attracting the nearby air and causing the nearby air to enter the ejector pipe together with the gas jet.

[0087] It should be noted that the amount of primary air will affect the height of the flame at the fire hole. Compared with the case where the content of primary air is relatively large, when the content of primary air is relatively large, the height of the flame at the fire hole will be smaller than that when the content of primary air is relatively small. In the case where the insufficient primary air causes the flame height to increase, in order to ensure the full combustion of the fuel and the qualified flue gas index, it is necessary to increase the distance between the bottom of the cookware and the burner cap, which will increase the heat loss of the flame, thereby resulting in a decrease in the thermal efficiency of the gas stove.

[0088] Based on this, it can be understood that increasing the amount of primary air can reduce the flame height, thereby solving the above problem of heat loss of the flame. However, the natural entrainment ability of the gas jet is limited. When the natural entrainment of primary air by the gas reaches the limit and the primary air still cannot make the gas burn fully, in order to make the gas burn fully and ensure the qualified flue gas index, it is necessary to increase the distance between the cookware and the burner cap, and in this way, the above problem of reduced thermal efficiency of the gas stove will occur.

[0089] In some embodiments of the present application, as Figure 4 shown, the gas stove provided by the present application includes an air supply device, and the air supply device includes an air supply assembly 31.

[0090] The air supply assembly 31 is arranged at the other end of the ejector pipe 23, as Figure 5 shown, and an air duct 30 is formed inside the air supply assembly 31.

[0091] The air supply assembly 31 is provided with an air inlet 311 and an air outlet 312 that communicate with the air duct 30 (see Figure 6 ), and both the air inlet 311 and the air outlet 312 communicate with the air duct 30.

[0092] Among them, the air outlet 312 communicates with the inside of the ejector tube 23, so that the air in the air duct 30 can enter the ejector tube 23 through the air outlet 312 to achieve the purpose of supplementing the primary air.

[0093] In some embodiments of the present application, as Figure 5 shown, the air supply device provided by the present application includes a fan 32, the fan 32 is arranged at the air inlet 311 of the air supply assembly 31, and the fan 32 is connected to the air supply assembly 31. In this way, the fan 32 can blow air into the air duct 30 of the air supply assembly 31 through the air inlet 311, and then blow the air into the ejector tube 23 through the air duct 30 to achieve the purpose of supplementing the primary air.

[0094] In order to solve the problem that the natural entrainment ability of the primary air of the gas is limited, in the related art, a blower device is set up to directly blow air into the ejector tube by a fan as the primary air. Compared with the natural entrainment of air by the gas jet as the primary air, the air directly blown into the ejector tube by the fan lacks the mixing process of the gas and the air during the natural entrainment. Therefore, when the air is directly blown into the ejector tube by the fan, the mixing effect of the gas and the primary air is poor.

[0095] Based on this, in order to solve the problem that the mixing effect of the air and the fuel is poor when the fan 32 directly blows air into the ejector tube 23.

[0096] In some embodiments of the present application, as Figure 7 shown, the air supply assembly 31 provided by the present application is provided with a mounting hole 310, and the nozzle 24 is inserted into the mounting hole 310.

[0097] The mounting hole 310 is independent of the air duct 30 of the air supply assembly 31. On this basis, as Figure 8 shown, a diversion port 3100 communicating with the air duct 30 is provided on the hole wall of the mounting hole 310. The diversion port 3100 communicates with the inside of the ejector tube through the mounting hole 310.

[0098] When the nozzle 24 is inserted into the mounting hole 310, while the nozzle 24 injects fuel into the ejector tube 23, air in the air duct 30 can enter the inside of the mounting hole 310 through the air guiding port 3100. It can be understood that the nozzle 24 inserted into the mounting hole 310 is also located inside the mounting hole 310. In this case, when the nozzle 24 injects fuel into the ejector tube 23, the air flowing from the air guiding port 3100 to the inside of the mounting hole 310 can be mixed with the fuel ejected by the nozzle 24 to a certain extent before entering the ejector tube 23.

[0099] As can be seen from the above, the air in the air outlet duct 30 can enter the inside of the mounting hole 310 through the air guiding port 3100 opened on the hole wall of the mounting hole 310, and after being mixed with the fuel ejected by the nozzle 24 inside the mounting hole 310, it enters the ejector tube 23. In this way, the problem that the primary air provided by the air supply device to the ejector tube 23 has a poor mixing effect with the fuel can be solved.

[0100] In some embodiments of the present application, as Figure 9 shown, the number of the above-mentioned air guiding ports 3100 can be two, and the two air guiding ports 3100 are spaced apart in the vertical direction on the hole wall of the mounting hole 310. In this way, when the nozzle 24 is inserted into the mounting hole 310, the two air guiding ports 3100 can be respectively located on the upper and lower sides of the nozzle 24. In this way, the air blown into the air duct 30 by the fan 32 can be more evenly distributed inside the mounting hole 310, so as to better mix with the fuel ejected from the nozzle 24.

[0101] As Figure 10 shown, in some embodiments of the present application, the nozzle 24 is spaced from the mounting hole 310. Based on this, a diversion area 300 is formed between the nozzle 24 and the mounting hole 310. The diversion area 300 communicates with the ejector tube 23 (not shown in the figure), and the diversion area 300 also communicates with the air guiding port 3100.

[0102] In this way, when the fan 32 works, as air continuously flows from the air duct 30 into the diversion area 300 formed between the nozzle 24 and the mounting hole 310 through the air guiding port 3100, the air will gradually fill the diversion area 300. When the air fills the diversion area 300, due to the continuous outflow of air from the air guiding port 3100, under the guiding action of the nozzle 24 and the mounting hole 310, the air in the diversion area 300 will flow into the ejector tube 23 along the axial direction of the mounting hole. That is, the flow direction of the air flowing into the diversion area 300 through the air guiding port 3100 can be sorted out and enter the ejector tube 23 along the ejection direction of the nozzle 24. The diversion area 300 formed between the nozzle 24 and the mounting hole 310 can play a role in guiding the air flow, so that the gas and air are better mixed.

[0103] Outlet air diversion portIn this case, in order to enable better mixing of air and fuel, as Figure 11 shown, in some embodiments of the present application, the air supply assembly 31 includes an air outlet 312, and the air outlet 312 faces the inlet of the ejector tube, and can introduce the air in the air duct into the ejector tube to increase the introduction amount of the primary air.

[0104] That is, a part of the air in the air duct 30 of the air supply assembly 31 directly enters the ejector tube 23 through the air outlet 312, and another part enters the ejector tube 23 after being mixed with the fuel through the air diversion port 3100, increasing the amount of primary air ejected into the ejector tube.

[0105] The air outlet 312 is arranged around the nozzle mounting hole 310. In addition to using the power of the blower itself to allow more air to enter the ejector tube, the ejecting effect of the fuel flowing at high speed during the injection of the fuel into the ejector tube is also fully utilized.

[0106] In some embodiments, around one nozzle mounting hole, the number of air outlets 312 is at least one.

[0107] In some embodiments, around one nozzle mounting hole, the air outlets 312 are respectively located on opposite sides, such as the upper side and the lower side and / or the left side and the right side.

[0108] In some embodiments, on one side around one nozzle mounting hole, there are at least two air outlets 312, such as three.

[0109] In some embodiments, the shape of the air outlet 312 is at least one of shapes such as circular, square, strip-shaped, arc-shaped, etc.

[0110] In some embodiments, on one side around one nozzle mounting hole, the multiple air outlets 312 are distributed equidistantly or non-equidistantly.

[0111] In some embodiments, on one side around one nozzle mounting hole, the multiple air outlets 312 are horizontally distributed, vertically distributed, or annularly distributed.

[0112] In some embodiments, the air outlet 312 is set at different air outlet angles, so that the ejected air forms a swirling forward flow field along the periphery of the nozzle and becomes swirling air, which is beneficial to better mixing of the fuel gas and the air.

[0113] In some embodiments, along the air outlet 312 from the end close to the ejector tube 23 to the end far from the ejector tube 23, the air outlet 312 gradually moves away from the axis of the mounting hole 310, and the opening on the side of the air outlet 312 close to the ejector tube 23 and the opening on the side of the air outlet 312 far from the ejector tube 23 are arranged at intervals along the circumferential direction of the mounting hole 310.

[0114] In this case, if the axial direction of the burner head 21 is defined as the up-and-down direction, then along the air outlet 312 from the end close to the ejector tube 23 to the end far from the ejector tube 23, the air outlet 312 gradually moves away from the axis of the mounting hole 310, which can be understood as the air outlet 312 being inclined in the up-and-down direction. Based on this, the openings on the side of the air outlet 312 close to the ejector tube 23 and the openings on the side of the air outlet 312 far from the ejector tube 23 are spaced circumferentially along the mounting hole 310, which can be understood as the air outlet 312 being inclined in the left-and-right direction.

[0115] In this way, the direction of the air flowing out of the air outlet 312 can have a certain swirling direction. Based on this, the air blown out from the air outlet 312 can form a swirling and forward flow field, so that the air blown out from the air outlet 312 becomes swirling wind. After the swirling wind enters the ejector tube 23, the swirling wind will rotate and flow forward along the inner wall of the ejector tube 23. Compared with the air flow that flows straight into the ejector tube 23 along the extension direction of the ejector tube 23, the air flow that enters the ejector tube 23 in a swirling manner can flow at a faster speed. The increase in the speed of the air flow is beneficial to the mixing of the air flow and the fuel in the ejector tube 23.

[0116] Next, the air supply assembly 31 will be described in conjunction with the accompanying drawings. As Figure 12 shown, the air supply assembly is in a box shape as a whole.

[0117] The air supply assembly 31 includes a front plate 51. The front plate 51 is located on the side close to the ejector tube.

[0118] An installation portion 511 is formed on the front plate 51. The installation portion 511 is located in the air duct 30, and a mounting hole 310 is formed on the installation portion 511. Based on this, the drainage port 3100 formed on the hole wall of the mounting hole 310 is also formed on the peripheral wall of the installation portion 511. For details, see Figure 13 As Figure 13 shown, the drainage port 3100 is formed on the peripheral wall of the installation portion 511 and penetrates through the installation portion 511. Furthermore, the air duct 30 is communicated with the inside of the ejector tube 23 through the drainage port 3100.

[0119] In addition, it should be noted that the air outlet 312 is formed on the front plate 51, and the front plate 51 covers the other end of the ejector tube 23 (see Figure 4 ).

[0120] In this way, the nozzle 24 can be installed and fixed through the mounting hole 310 formed on the installation portion 511, so that the fuel can be sprayed into the ejector tube 23 through the nozzle 24.

[0121] As Figure 14As shown, the mounting hole 310 formed by the above-mentioned mounting portion 511 includes a first section 3101 and a second section 3102. The first section 3101 and the second section 3102 are in communication. The first section 3101 is closer to the ejector tube 23 than the second section 3102, and the aperture of the first section 3101 is larger than that of the second section 3102.

[0122] It should be noted that the change in the aperture between the first section 3101 and the second section 3102 occurs at the junction of the first section 3101 and the second section 3102. In the direction from the ejector tube 23 to the nozzle 24, at the junction of the first section 3101 and the second section 3102, the inner diameter of the mounting hole 310 undergoes a sudden change, and its inner diameter decreases, thus dividing the first section 3101 with a larger aperture and the second section 3102 with a smaller aperture. Based on this, the wall thickness of the part of the mounting portion 511 corresponding to the second section 3102 of the mounting hole 310 increases (compared with the wall thickness corresponding to the first section 3101). In the radial direction of the mounting portion 511, the inner wall of the corresponding part of the second section 3102 of the mounting hole 310 is closer to the axis of the mounting hole 310. In this way, a stepped surface structure is also formed at the junction of the first section 3101 and the second section 3102. On this basis, a thread is provided on the inner wall surface of the second section 3102 so that the nozzle 24 can be threadedly connected to the second section 3102 of the mounting hole 310.

[0123] In this way, when the nozzle 24 is threadedly connected to the second section 3102, the part of the nozzle 24 located in the first section 3101 is spaced from the inner wall of the first section 3101, so that the above-mentioned diversion area 300 is formed between the nozzle 24 and the first section 3101 of the mounting hole 310.

[0124] In some embodiments of the present application, a part of the first section 3101 of the mounting hole 310 formed by the above-mentioned mounting portion 511 may also be located on the side of the front plate 51 close to the ejector tube. That is, a part of the mounting portion 511 may also pass through the front plate 51 and extend a certain length along the axis direction of the ejector tube 23. In this way, the first section of the mounting hole 310 of the mounting portion 511 located on the side of the front plate 51 close to the ejector tube 23 can further guide the air flowing into the ejector tube 23.

[0125] In some embodiments, a guiding wall with a certain extension length is provided around the mounting hole 310 on the side of the front plate 51 close to the ejector tube to guide the air flowing into the ejector tube 23 introduced through the drainage port 3100.

[0126] In addition, it should be noted that, referring to Figure 14 and Figure 15 (It should be noted that, Figure 15The shaded area in the figure is a schematic view of the corresponding areas of the first section 3101 and the second section 3102 of the installation part 511 cut along the radial direction. The drainage opening 3100 is opened on the wall surface of the first section 3101 of the installation hole 310 and is connected to the diversion area 300, so that the air in the air duct 30 can flow into the diversion area 300 through the drainage opening 3100. This part of the air is combed in the diversion area 300 and then flows into the ejector tube 23, increasing the supplement amount of the primary air.

[0127] In some embodiments of the present application, the drainage opening 3100 is opened on one side or opposite sides of the first section 3101.

[0128] In some embodiments of the present application, the drainage opening 3100 is opened around the nozzle on the first section 3101, ensuring the maximum air intake and the uniformity of air intake.

[0129] As Figure 12 shown, the air supply assembly 31 further includes a rear plate 52, and the rear plate 52 is located on the side of the front plate 51 away from the ejector tube 23. A nozzle avoidance hole 520 is opened on the rear plate 52, and the nozzle avoidance hole 520 is disposed opposite to the installation hole 310 opened on the installation part 511.

[0130] In this way, during or after the assembly process of the nozzle 24, the nozzle avoidance hole 520 can provide an avoidance space for the nozzle 24 to avoid interference between the nozzle 24 and the rear plate 52.

[0131] As Figure 12 shown, the air supply assembly 31 further includes a surrounding plate 53, and the surrounding plate 53 is located between the front plate 51 and the rear plate 52. The surrounding plate 53 is connected to the front plate 51, and the surrounding plate 53 is also connected to the rear plate 52. In this way, the air duct 30 of the air supply assembly 31 is formed by enclosing the front plate 51, the rear plate 52 and the surrounding plate 53. One end of the air duct 30 is closed, and an air inlet 311 is formed at the other end.

[0132] As can be seen from the above, the air supply assembly 31 includes the above-mentioned front plate 51, rear plate 52 and surrounding plate 53, and the air duct 30 is formed by enclosing the front plate 51, rear plate 52 and surrounding plate 53. Based on this, in order to realize the connection between the front plate 51, rear plate 52 and surrounding plate 53.

[0133] In some embodiments of the present application, the above-mentioned front plate 51 and the surrounding plate 53 can be integrally formed by die-casting, that is, the front plate 51 and the surrounding plate 53 can be an integral structure, and the rear plate 52 can also be formed by die-casting.

[0134] In some embodiments of the present application, the rear plate 52 and the surrounding plate 53 are an integral structure, and the front plate 51 and the surrounding plate 53 are connected.

[0135] Combined with Figure 12As shown, the air outlet 312 is provided on the front plate 51.

[0136] Thus, the front plate 51, the rear plate 52, and the surrounding plate 53 enclose the air duct 30 of the air supply assembly 31. The air in the air duct is introduced into the ejector tube through the air outlet 312 and / or the diversion port 3100. The nozzle 24 can be installed and fixed through the installation hole 310 formed on the installation part 511, thereby realizing the fixation of the nozzle and the introduction of the primary air.

[0137] The structure of the air supply assembly can be used in conjunction with the existing ejector tube. Without the need to newly open an ejector tube, the primary air can be supplemented. At the same time, the structure is simple and easy to implement. The overall structure is concise, easy to produce, and convenient to assemble. There is no need to add complex die structures and additional processing procedures. This solution has a compact structure, occupies a small space, and can be conveniently installed in the bottom shell cavity of the gas stove for use without major modifications.

[0138] The air supply device provided by this application includes an air supply assembly 31 and a fan 32. Among them, the air supply assembly 31 is composed of a front plate 51, a rear plate 52, and a surrounding plate 53. The front plate 51, the rear plate 52, and the surrounding plate 53 are all flat plate-like structures, which can be processed and formed by die casting, and the die design is simple and easy to process.

[0139] In addition, it should be noted that the end face of the ejector tube 23 on the side where the nozzle is provided is usually flat, and the front plate 51 connected to the ejector tube 23 in this application is also designed as a flat structure. Therefore, when the air supply assembly 31 provided by this application is assembled with the ejector tube 23, the ejector tube 23 does not need to be specially designed to be assembled with the air supply assembly 31.

[0140] It should also be noted that as Figure 21 shown, a gas stove that usually relies on natural ejection to provide primary air is equipped with an air adjustment assembly 025 at one end of the ejector tube 023 where the nozzle 024 is provided. The air adjustment assembly 025 can include a first air adjustment assembly 0251 and a second air adjustment assembly 0252. Among them, the first air adjustment assembly 0251 usually has a nozzle installation hole 0240 for installing the nozzle 023, and the second air adjustment assembly 0252 usually has a primary air inlet 02520 so that the primary air can enter the ejector tube 023 through the primary air inlet 02520. In addition, an avoidance hole 02521 is also provided on the second air adjustment assembly 0252 to avoid the nozzle 023.

[0141] In order to install the air adjustment assembly 025, usually a screw hole 0230 is also provided on the ejector tube 023, and a screw hole 02510 is also provided on the air adjustment assembly 0251. Thus, the air adjustment assembly 025 can be installed on the ejector tube 023 by using a screw to pass through the screw hole 02510 and the screw hole 0230.

[0142] Based on this, when assembling the air supply component 31 and the ejector pipe 23 provided in the present application, the screw holes 0230 opened for installing the air regulating component 025 can also be used. A screw passes through the air supply component 31 and is then threadedly connected to the screw holes 0230 on the ejector pipe 23 to complete the assembly of the air supply component 31 and the ejector pipe 23, that is, the ejector pipe 23 does not need to be additionally provided with other installation holes.

[0143] In addition, an installation hole 310 is also provided on the air supply component 31. The installation hole 310 is opened on the front plate 51, and a nozzle avoidance hole 520 is correspondingly opened on the rear plate 52. This enables the nozzle to be installed on the other end (the end far from the burner head) of the ejector pipe 23 through the air supply component 31, realizing the function of the nozzle 24 injecting fuel into the ejector pipe 23. This does not require changing the structure of the existing nozzle, and when the nozzle passes through the installation hole 310, at least part of the nozzle can be exposed outside the air supply component 31, facilitating the connection of the gas supply pipeline to the nozzle. This also ensures that the internal pipeline design of the gas stove does not need to be adjusted.

[0144] Moreover, the installation position of the installation hole 310 provided on the air supply component 31 in the present application is the same as that of the first air regulating component 0251, both are located on the inlet side of the ejector pipe 23, both are used for installing the nozzle, and the installation methods of the nozzle with the installation hole 310 and the first air regulating component 0251 are also the same, for example, both can be threaded connections. Based on this, the air supply component provided in the present application has strong versatility, and the assembly of the air supply component 31 (and the fan 32) can be completed without modifying the structures such as the ejector pipe, nozzle, bottom shell, and gas supply pipeline of the existing gas stove.

[0145] On this basis, in order to connect the front plate 51, the rear plate 52, and the surrounding plate 53, as Figure 12 shown, a first connection portion 1001 is formed on one side of the surrounding plate 53 close to the rear plate 52, and screw holes are opened on the first connection portion 1001. A second connection portion 1002 is formed on the rear plate 52, and screw holes are opened on the second connection portion 1002.

[0146] In this way, a first connection portion 1001 and a second connection portion 1002 are arranged opposite to each other, and then screws are screwed into the screw holes of the first connection portion 1001 and the second connection portion 1002 to realize the connection between the first connection portion 1001 and the second connection portion 1002, thereby realizing the connection between the front plate 51 and the rear plate 52.

[0147] In some embodiments, there may be a plurality of the first connecting portions 1001, and the plurality of first connecting portions 1001 are arranged at intervals around the circumferential direction of the front plate 51. Based on this, there may also be a plurality of the second connecting portions 1002, and the plurality of second connecting portions 1002 are arranged at intervals around the circumferential direction of the rear plate 52. In this case, one first connecting portion 1001 corresponds to one second connecting portion 1002.

[0148] On this basis, as Figure 16 shown, in order to enable the air supply assembly to be installed on the ejector pipe 23, a first mounting hole 1003 is formed on the front plate 51, and a second mounting hole 1004 is formed on the rear plate 52. The first mounting hole 1003 and the second mounting hole 1004 are arranged opposite to each other, and both the first mounting hole 1003 and the second mounting hole 1004 are screw holes.

[0149] Based on this, a third mounting hole 1005 is also formed on the ejector pipe 23. In this way, screws can be screwed into the first mounting hole 1003, the second mounting hole 1004 and the third mounting hole 1005, so that the front plate 51, the rear plate 52 and the surrounding plate 53 are connected to the ejector pipe 23, that is, the purpose of connecting the air supply assembly 31 to the ejector pipe 23 is achieved.

[0150] On this basis, as Figure 16 shown, a fan connection port 530 is formed on the rear plate 52. The fan connection port 530 is communicated with the air duct 30, and the fan connection port 530 is also connected to the fan 32.

[0151] In this way, the fan 32 can be communicated with the air duct 30 through the fan connection port 530. When the fan 32 works, air can be blown into the air duct 30 through the fan connection port 530 formed on the rear plate 52.

[0152] As Figure 16 shown, the rear plate 52 includes a rear plate main body 521, and the rear plate main body 521 is located on the side of the front plate 51 away from the ejector pipe 23. The nozzle avoidance hole 520 is formed on the rear plate main body 521. In addition, it should be noted that the air duct 30 is mainly surrounded by the surrounding plate 53, the front plate 51 and the rear plate main body 521.

[0153] As Figure 16 shown, the rear plate 52 further includes a fan connecting member 522. One side of the fan connecting member 522 is connected to the rear plate main body 521, and the other side of the fan connecting member 522 encloses the fan connection port 530.

[0154] As Figure 17As shown, the fan 32 has a housing 320, and a fan air outlet 3200 is formed in the housing 320 of the fan 32. A part of the fan air outlet 3200 extends into a fan connection port 530 surrounded by a fan connector 522, and the fan air outlet 3200 and the fan connection port 530 are in mutual abutment.

[0155] It can be understood that the fan air outlet 3200 and the fan connection port 530 are in mutual abutment, that is, a part of the housing 320 of the fan 32 extends into the inner side of the fan connector 522, and the housing 320 and the fan connector 522 are in mutual abutment. In this way, the sealing performance between the fan 32 and the fan connection port 530 can be improved, and the air blown into the air duct 30 by the fan 32 can be prevented or reduced from leaking from the fan connection port 530.

[0156] In some embodiments, the overlapping position length of the mutually abutting part of the fan connection port 530 of the above-mentioned fan 32 and the fan connector 522 can be set to be greater than or equal to 3 mm. It should be noted that the length of the overlapping position refers to the length of the housing 320 extending into the inner side of the fan connector 522 in the axial direction of the fan connection port 530. In some embodiments, the overlapping length can be 3 mm. In some embodiments, the overlapping length can also be 5 mm. It can be understood that within a certain range, the sealing performance between the housing 320 and the fan connection port 530 can be improved as the overlapping length increases. As Figure 16 shown, in some embodiments of the present application, one end of the front plate 51 close to the fan connection port 530 is formed with a first bending part 510, and the first bending part 510 is an arc surface structure.

[0157] The air blown into the air duct 30 by the fan 32 will contact the inner wall of the front plate 51 after entering the air duct 30 and continue to flow along the front plate 51. When the first bending part 510 formed by the front plate 51 is an arc surface, when the air contacts the front plate 51 and continues to flow along the front plate 51, the arc surface of the first bending part can play a guiding role for the air. Compared with a right-angle setting, the arc surface structure setting of the first bending part 510 can effectively reduce the energy loss of the air flow, which is beneficial to the air flow flowing more smoothly in the air duct 30.

[0158] Continue to refer to Figure 16, a pressure equalizing chamber 3000 is formed in a part of the air duct 30. The pressure equalizing chamber 3000 is formed by at least a part of the air duct 30 of the air duct 30 close to the fan connection port 530. The pressure equalizing chamber 3000 is communicated with the air duct 30, and the pressure equalizing chamber is communicated with the fan connection port 530. And in the direction of the rear plate 52 pointing to the front plate 51, the depth of the pressure equalizing chamber 3000 is greater than the depth of the air duct 30. In this way, the air entering the air duct 30 through the fan connection port 530 will first flow into the pressure equalizing chamber 3000. As known above, the depth of the pressure equalizing chamber 3000 is greater than the depth of the air duct 30. Therefore, the pressure equalizing chamber 3000 can provide a larger space for the inflowing air, slow down the flow rate of the inflowing air, increase the static pressure, and make the air flow more evenly distributed in the pressure equalizing chamber 3000, and then flow into the subsequent air duct 30 more evenly and stably.

[0159] In some embodiments of the present application, the rear plate 52 includes a first part 5200 close to the fan connection port, a second part 5202 far from the fan connection port, and a connecting part 5201 connecting the first part and the second part. The first part 5200 is farther from the front plate than the second part 5202. A part of the surrounding plate and the first part 5200 and the connecting part 5201 enclose the pressure equalizing chamber 3000, and the pressure equalizing chamber is communicated with the fan connection port.

[0160] As Figure 18 shown, in some embodiments of the present application, a protruding part 5110 is formed on one side of the mounting part 511 close to the rear plate 52, and the protruding part 5110 can play a positioning role.

[0161] When the front plate 51, the rear plate 52 and the surrounding plate 53 are installed in place and connected to each other, the above-mentioned protruding part 5110 is located in the nozzle avoidance hole 520 opened on the rear plate 52 (see Figure 12 ). During the assembly process of the rear plate 52 and the front plate 51, the front plate 51 and the rear plate 52 can be quickly assembled in place through the cooperation relationship between the protruding part 5110 formed on the mounting part 511 and the nozzle avoidance hole 520 opened on the rear plate 52, which is beneficial to improving the assembly efficiency and reducing the assembly difficulty.

[0162] In addition, the above-mentioned protruding part 5110 can also play an auxiliary sealing role. When the protruding part 5110 is located in the nozzle avoidance hole 520, the protruding part 5110 can abut against the inner wall of the nozzle avoidance hole 520, so as to play a sealing role and avoid air leakage in the air duct 30.

[0163] In some embodiments of the present application, a natural ejection hole is also opened on the air supply assembly 31 provided in the present application, so that the gas jet ejected from the nozzle 24 can eject primary air in a natural ejection manner.

[0164] In some embodiments of the present application, as Figure 16As shown, a first natural injection hole 61 is formed on the front plate 51 of the air supply assembly 31, and a second natural injection hole 62 is formed on the rear plate 52. The first natural injection hole 61 and the second natural injection hole 62 are arranged opposite to each other.

[0165] On this basis, in order to prevent the air in the air duct 30 from flowing out through the first natural injection hole 61 or the second natural injection hole 62, it is ensured that the air in the air duct 30 can flow into the injection pipe 23 through the air outlet 312 and the diversion port 3100. As Figure 16 shown, the air supply assembly 31 further includes a partition plate 7. The partition plate 7 is located in the air duct 30 and is arranged around the circumference of the first natural injection hole 61. One side of the partition plate 7 is connected to the front plate 51, and the other side abuts against the rear plate 52.

[0166] In this way, the partition plate 7 can connect the first natural injection hole 61 and the second natural injection hole 62 to form a natural injection hole. And the partition plate 7 can also ensure that the first natural injection hole 61 is not connected to the air duct 30, and the second natural injection hole 62 is not connected to the air duct 30. It is ensured that the natural injection of the gas jet ejected by the nozzle 24 does not affect the air blown into the injection pipe 23 by the fan 32 in the air duct 30.

[0167] In some embodiments of the present application, in combination with Figure 13 、 Figure 15 、 Figure 16 it can be known that the installation part 511 is connected to the partition plate 7. Specifically, the second section 3102 is connected to the partition plate 7 to achieve its installation function.

[0168] The structure of the present application retains the natural injection function of the primary air. On the basis of this function, the primary air is additionally supplemented through the fan air duct, reducing the influence of the fluctuations of the fan caused by external conditions on the overall injection function and combustion function, and having a high structural integration.

[0169] In some embodiments of the present application, a first positioning ring 8 is formed on the surface of the front plate 51 close to the injection pipe 23. The first positioning ring 8 extends into the injection pipe 23. As Figure 19 shown, the first positioning ring 8 abuts against the inner wall of the injection pipe 23.

[0170] On the one hand, the first positioning ring 8 can play a positioning role. During the assembly connection process of the front plate 51 and the injection pipe 23, the first positioning ring 8 can be aligned with the inlet of the injection pipe 23 to facilitate the assembly. On the other hand, the first positioning ring 8 abuts against the inner wall of the injection pipe 23, which can also play a sealing role to a certain extent, thereby improving the sealing effect between the front plate 51 and the injection pipe 23.

[0171] In some embodiments of the present application, as Figure 20As shown, a second positioning ring 9 is formed on the surface of the rear plate 52 close to the front plate 51. The second positioning ring 9 is arranged along the circumference of the rear plate 52, and the second positioning ring 9 can abut against the inner wall of the surrounding plate 53.

[0172] On the one hand, the second positioning ring 9 can play a positioning role. During the assembly connection process of the rear plate 52 and the front plate 51, the opening surrounded by the second positioning ring 9 and the surrounding plate 53 can be aligned for assembly. On the other hand, the second positioning ring 9 abuts against the inner wall of the surrounding plate 53, which can also play a sealing role to a certain extent, thereby improving the sealing effect between the rear plate 52 and the front plate 51. It should be noted that the air outlet 312 and the drainage port 3100 mentioned above both belong to the air guiding part.

[0173] In the description of this specification, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0174] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A gas stove, characterized in that: include: stove top; An ejector tube, one end of which is connected to the furnace head; A nozzle is arranged at the other end of the ejection tube; as well as, The air supply device comprises: An air supply component is arranged at the other end of the ejection tube; an air duct is formed inside the air supply component, and an air inlet and an air outlet are provided which are connected to the air duct; the air outlet is connected to the inside of the ejection tube; A fan, disposed at the air inlet and connected to the air supply assembly; Among them, the air supply component is provided with a mounting hole, and the nozzle is inserted into the mounting hole; the mounting hole and the air duct are independent of each other, and a drainage port connected to the air duct is provided on the hole wall; the drainage port is also connected to the interior of the ejector tube through the mounting hole.

2. The gas stove according to claim 1, characterized in that: The nozzle and the mounting hole are spaced apart, and a flow guide area is formed between the nozzle and the mounting hole; the flow guide area is connected to the ejector tube, and the flow guide area is also connected to the drainage port.

3. The gas stove according to claim 1, characterized in that: The air outlet gradually moves away from the axis of the mounting hole from one end of the air outlet close to the ejection tube to the end of the air outlet far from the ejection tube, and the opening of the air outlet close to the ejection tube and the opening of the air outlet far from the ejection tube are spaced apart along the circumference of the mounting hole.

4. The gas stove according to claim 1, characterized in that: The air supply assembly comprises: A front plate, wherein a mounting portion is formed on the front plate, the mounting portion is located in the air duct of the air supply assembly, and the mounting portion is formed with the mounting hole; the air outlet is opened on the front plate; and the front plate cover is arranged on the other end of the ejector tube; A rear plate is located on a side of the front plate away from the ejector tube; a nozzle avoidance hole is provided on the rear plate, and the nozzle avoidance hole is arranged opposite to the mounting hole; A panel, the panel is located between the front panel and the rear panel, the panel is connected to the front panel, and the panel is connected to the rear panel; The front plate, the rear plate and the enclosure plate form the air duct; Wherein, a fan connection port is formed on the rear plate; the fan connection port is communicated with the air duct, and the fan connection port is also connected to the fan.

5. The gas stove according to claim 4, characterized in that: The rear plate comprises: A rear plate body, the rear plate body is located on a side of the front plate away from the ejector tube, the nozzle avoidance hole is provided on the rear plate body; the rear plate body, the enclosure plate and the front plate form the air duct; A fan connecting plate, one side of which is connected to the rear plate body, and the other side of which surrounds the fan connecting port; The fan has a casing, and a fan air outlet is formed on the casing. A portion of the fan air outlet extends into the fan connecting port, and the fan air outlet and the fan connecting port abut against each other.

6. The gas stove according to claim 4, characterized in that: A first bending portion is formed at one end of the front plate close to the fan connection port, and the first bending portion of the front plate is an arc surface.

7. The gas stove according to claim 4, characterized in that: Part of the air duct forms a pressure equalizing chamber, and the pressure equalizing chamber is formed by at least a part of the air duct close to the fan connection port; the pressure equalizing chamber is connected to the air duct, and the pressure equalizing chamber is connected to the fan connection port; in the direction from the rear plate to the front plate, the depth of the pressure equalizing chamber is greater than the depth of the air duct.

8. The gas stove according to claim 4, characterized in that: A protrusion is formed on one side of the mounting portion close to the rear plate; when the front plate, the rear plate and the enclosure plate are connected, the protrusion is located in the nozzle avoidance hole.

9. The gas stove according to claim 4, characterized in that: The front plate is provided with a first natural ejection hole, the rear plate is provided with a second natural ejection hole, and the first natural ejection hole and the second natural ejection hole are arranged opposite to each other; The air supply assembly also includes a partition plate, which is located in the air duct and is arranged around the circumference of the first natural ejection hole. One side of the partition plate is connected to the front plate, and the other side of the partition plate is abutted against the rear plate.

10. The gas stove according to claim 4, characterized in that: A first positioning ring is formed on the surface of the front plate on one side close to the ejection tube. The first positioning ring extends into the ejection tube and abuts against the inner wall of the ejection tube.

11. The gas stove according to any one of claims 4 to 10, characterized in that: The mounting hole formed by the mounting portion includes a first section and a second section, the first section and the second section are connected, the first section is closer to the ejector tube than the second section, and the aperture of the first section is larger than the aperture of the second section, the drainage port is opened on the wall surface of the first section of the mounting hole, and the drainage port is arranged on a side of the first section close to the second section.

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