Gas stove

Abstract

The application discloses a gas stove, which is characterized by the following: an energy-gathering chamber is arranged, a fan and an ejector pipe are arranged inside the energy-gathering chamber, a burner is connected to the inside of the energy-gathering chamber, the burner is partially exposed to the outside of the energy-gathering chamber, and an air inlet hole is arranged on the energy-gathering chamber and communicates with the inside of the energy-gathering chamber. When the gas stove is used to heat a pot, the fan can be used to introduce air outside the energy-gathering chamber into the inside of the energy-gathering chamber, the air introduced into the inside of the energy-gathering chamber can be heated by convection heat exchange with the burner, and the heated air can be introduced into the inside of the ejector pipe by the fan, so that the air can be mixed with gas in the inside of the ejector pipe and enough primary air can be provided for the combustion of the gas. Since the fan is arranged in the energy-gathering chamber and connected to the ejector pipe, the fan can introduce the preheated air into the inside of the ejector pipe, so that the combustion efficiency of the gas is effectively improved, and the thermal efficiency of the gas stove is improved.

Description

Technical Field

[0001] This application relates to the field of kitchen and bathroom appliances technology, and in particular to a gas stove. Background Technology

[0002] The thermal efficiency of a gas stove is a crucial parameter reflecting its energy efficiency. Improving the combustion efficiency of the gas effectively enhances the stove's thermal efficiency. Currently, gas stoves utilize blowers and other ventilation devices to supply sufficient air as primary air, ensuring complete combustion and thus achieving higher combustion efficiency, thereby improving the stove's overall combustion efficiency.

[0003] However, since the primary air introduced by the blower is at room temperature, there is a large temperature difference between it and the stove fire. In winter or in environments with low temperatures, the temperature difference between the primary air and the stove fire is even greater. This causes a large amount of heat from the stove fire to be lost into the primary air, resulting in a reduction in the thermal efficiency of the gas stove. Utility Model Content

[0004] The gas stove provided in this application improves the combustion efficiency of the gas and the thermal efficiency of the gas stove.

[0005] This application provides a gas stove, comprising:

[0006] The housing has a mounting cavity and a first clearance hole communicating with the mounting cavity;

[0007] A burner assembly, wherein the burner assembly is disposed in the housing, and a portion of the burner assembly extends from the mounting cavity to the outside of the housing through the first clearance hole;

[0008] The burner assembly includes:

[0009] An energy-concentrating chamber is disposed in the housing and located in the mounting cavity. The energy-concentrating chamber has a receiving space and a second clearance hole communicating with the receiving space. The second clearance hole is correspondingly disposed with the first clearance hole. The energy-concentrating chamber is provided with an air inlet communicating with the receiving space. The air inlet is configured to allow air to enter the receiving space.

[0010] A burner head is disposed in the energy-concentrating chamber, and the burner head portion extends from the receiving space to the outside of the housing through the second clearance hole and the first clearance hole;

[0011] A fan is installed in the energy-concentrating chamber and located within the containment space;

[0012] An ejector tube is connected between the furnace head and the blower and is located in the receiving space;

[0013] The fan is used to allow air from outside the energy-concentrating chamber to enter the energy-concentrating chamber through the air inlet, and then allow air from inside the energy-concentrating chamber to enter the ejector tube.

[0014] The gas stove of this application features a concentrating chamber with a fan and injector pipe housed inside. The burner and injector pipe are connected inside the concentrating chamber, with the burner protruding outside. An air inlet is located on the concentrating chamber, allowing air from outside to enter through the inlet and then into the injector pipe. This design allows for efficient heating of cookware. When heating cookware, the fan draws air from outside the concentrating chamber, which absorbs heat through convection with the burner, thus raising the temperature. The fan then draws the heated air into the injector pipe, where it mixes with the gas, providing sufficient primary air for combustion. Because the fan is located inside the energy-concentrating chamber and connected to the injector, it can draw preheated air into the energy-concentrating chamber and into the injector, thereby effectively improving the combustion efficiency of the gas and thus the thermal efficiency of the gas stove. At the same time, it prevents the air that has entered the energy-concentrating chamber from remaining inside for a long time, thus avoiding the problems of excessively high gas pressure inside the energy-concentrating chamber and insufficient heat recovery from the burner.

[0015] In one possible implementation, the orthographic projection of the burner head onto the plane where the air inlet is located covers at least a portion of the air inlet.

[0016] The orthographic projection of the burner head onto the plane where the air inlet is located covers at least a portion of the air inlet. That is, at least a portion of the burner head and the air inlet are directly opposite each other. In this way, when air enters the energy-concentrating chamber from the air inlet, at least a portion of the airflow is directly facing the burner head. The airflow can directly contact the surface of the burner head to achieve convective heat transfer, which helps to improve the heat transfer efficiency between the air and the burner head, and thus effectively increases the temperature of the preheated air.

[0017] In one possible implementation, the air inlet and the blower are located on opposite sides of the furnace head in the direction of extension of the ejector tube.

[0018] By arranging the air inlet and the fan on opposite sides of the burner head in the direction of the ejector tube extension, the flow path of the air entering the energy-concentrating chamber from the air inlet can be extended, thereby extending the heat absorption time of this air. This results in more thorough preheating of this air, higher temperature, and a significant increase in the temperature of the primary air, thereby improving the combustion efficiency of the gas and the thermal efficiency of the gas stove.

[0019] In one possible implementation, the air inlet, the burner head, and the fan are arranged sequentially at intervals along the same straight line.

[0020] By arranging the air inlet, burner head, and fan in a straight line at intervals, the air entering the energy-concentrating chamber can flow directly towards the burner head to fully exchange heat with the burner head surface, thereby increasing the temperature of the primary air. The preheated air flows in a straight line and reaches the fan, and under the action of the fan, it enters the ejector tube. This reduces the contact between the air and other components during the airflow process, thereby reducing the heat exchange between the preheated air and other components, which would otherwise cause the temperature of the primary air to drop.

[0021] In one possible implementation, the energy-concentrating chamber includes:

[0022] The bottom shell, the blower and the ejector tube are disposed in the bottom shell and located in the bottom shell, and the furnace head is disposed in the bottom shell;

[0023] The upper cover is disposed on the bottom shell and together with the bottom shell forms a closed receiving space, and the upper cover is provided with the second clearance hole.

[0024] The energy-concentrating chamber includes a bottom shell and a top cover. The burner, fan, and injector are all located in the bottom shell. The bottom shell and top cover form a closed receiving space. The top cover has a second clearance hole communicating with the receiving space, and the second clearance hole is arranged correspondingly to the first clearance hole. The burner extends to the outside of the energy-concentrating chamber through the second clearance hole and the first clearance hole. That is, the connection between the bottom shell and the top cover is closed. In this way, the receiving space is closed except for the air inlet of the energy-concentrating chamber. This effectively limits the distribution space of the heat radiated by the burner, making the heat radiated by the burner highly concentrated. This helps the air entering the energy-concentrating chamber to fully absorb heat and heat up, effectively improving the preheating effect of the air, thereby increasing the temperature of the primary air and improving the combustion efficiency of the gas and the thermal efficiency of the gas stove.

[0025] In one possible implementation, the bottom shell includes:

[0026] A first placement part, the first placement part having a first sub-slot, the furnace head and the ejector tube being disposed in the first placement part and located in the first sub-slot, and the air inlet being disposed in the first placement part;

[0027] The second placement part is connected to the first placement part. In the radial direction of the ejector tube, the second placement part is staggered with the extension line of the ejector tube in its own extension direction. The second placement part has a second sub-slot that communicates with the first sub-slot. The fan is disposed in the second sub-slot.

[0028] The radial direction of the ejector tube is perpendicular to the extension direction of the ejector tube.

[0029] The energy-concentrating chamber includes a first placement section with a first sub-slot and a second placement section with a second sub-slot. The burner and injector are both located in the first placement section and within the first sub-slot, and the air inlet is located in the first placement section. The second placement section is arranged radially offset from the extension line of the injector in its own extension direction, and the fan is located in the second placement section. This arrangement allows the fan to be offset from the end of the injector furthest from the burner, avoiding interference with the gas supply pipe used to connect to the injector in the gas stove. This ensures that the end of the injector furthest from the burner can connect normally to the gas supply pipe, allowing gas to enter the injector through the gas supply pipe and mix with preheated air.

[0030] In one possible implementation, the burner assembly further includes:

[0031] A duct component extends radially along the ejector tube. One end of the duct component is connected to the fan, and the ejector tube is connected to the other end of the duct component, so that the ejector tube is connected between the furnace head and the fan. The duct component is located in the first sub-slot, and the fan blows preheated air from the accommodating space into the ejector tube through the duct component.

[0032] The air duct extends radially along the injector tube. One end of the air duct connects to the fan, and the other end connects to the injector tube, connecting the injector tube between the burner and the fan. This allows the fan and injector tube to be staggered, ensuring that preheated air is drawn into the air duct by the fan and then fed into the injector tube, providing preheated primary air for gas combustion and improving both combustion efficiency and the gas stove's thermal efficiency.

[0033] In one possible implementation, the first placement portion includes:

[0034] The furnace head and the ejector tube are located in the first base plate portion;

[0035] The first curved panel is connected to the first base plate. The first curved panel is arranged around the circumference of the burner head, and the air inlet is located on the first curved panel.

[0036] The first side plate is connected to the first bottom plate, and the first side plate is also connected to the first curved plate on one side of the furnace head in the circumferential direction.

[0037] The second side plate is connected to the first bottom plate and is also connected to the first curved plate on the other side of the furnace head in the circumferential direction. The first side plate and the second side plate are arranged at intervals. The first bottom plate, the first curved plate, the first side plate and the second side plate form the first sub-slot.

[0038] The air inlet is located on the first curved panel of the first placement part, and the first curved panel extends along the circumference of the burner head. In this way, when air enters the energy-concentrating chamber from the outside of the energy-concentrating chamber through the air inlet, the air can be distributed around the burner head, which can maximize the contact area between the air and the burner head, improve the convection efficiency between the air and the surface of the burner head, enhance the heat absorption of the air on the surface of the burner head, and make the air more fully preheated.

[0039] In one possible implementation, the size of the second placement portion is smaller than the size of the first placement portion in the radial direction of the ejector tube.

[0040] Based on the staggered arrangement of the second placement part and the ejector tube, the radial dimension of the second placement part in the ejector tube is set to be smaller than that of the first placement part in the ejector tube. This can reduce the overall volume of the energy-concentrating chamber, so that the heat radiated by the furnace head is confined to a smaller space in the energy-concentrating chamber. In other words, the heat radiated by the furnace head is more concentrated, which is conducive to improving the heat absorption efficiency of primary air in the energy-concentrating chamber, thereby increasing the temperature of primary air.

[0041] In one possible implementation, the inner wall of the energy-concentrating chamber is provided with a heat insulation layer.

[0042] By setting a heat insulation layer on the inner wall of the energy-concentrating chamber, the heat radiated by the burner head can be reduced after being conducted to the energy-concentrating chamber, preventing the heat from being conducted from the energy-concentrating chamber to the outside air and causing heat loss. This helps to confine the heat radiated by the burner head inside the energy-concentrating chamber and improve the preheating efficiency of the primary air.

[0043] Compared with the prior art, the beneficial effects of this application are as follows:

[0044] The gas stove of this application features a concentrating chamber with a fan and injector pipe housed inside. The burner and injector pipe are connected inside the concentrating chamber, with the burner protruding outside. An air inlet is located on the concentrating chamber, allowing air from outside to enter through the inlet and then into the injector pipe. This design allows for efficient heating of cookware. When heating cookware, the fan draws air from outside the concentrating chamber, which absorbs heat through convection with the burner, thus raising the temperature. The fan then draws the heated air into the injector pipe, where it mixes with the gas, providing sufficient primary air for combustion. Because the fan is located inside the energy-concentrating chamber and connected to the injector, the fan can evenly distribute the preheated air entering the energy-concentrating chamber into the injector, thereby effectively improving the combustion efficiency of the gas and thus improving the thermal efficiency of the gas stove. At the same time, it prevents the air entering the energy-concentrating chamber from remaining inside for a long time, thus avoiding the problems of excessively high gas pressure inside the energy-concentrating chamber and insufficient heat recovery from the burner. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the gas stove in the embodiments of this application;

[0046] Figure 2 yes Figure 1 The diagram shows the internal structure of the gas stove.

[0047] Figure 3 yes Figure 2 A schematic diagram of the structure of the burner assembly;

[0048] Figure 4 yes Figure 3 A top view of the burner assembly shown;

[0049] Figure 5 yes Figure 4 The diagram shows a cross-sectional view of the burner assembly along the A-A' direction;

[0050] Figure 6 yes Figure 3 The diagram shown is an exploded view of the burner assembly.

[0051] Figure 7 yes Figure 6 The diagram shows the internal structure of the burner assembly.

[0052] Figure 8 yes Figure 7 The diagram shows the structure of the bottom shell;

[0053] Figure 9 yes Figure 8 A top view of the bottom shell is shown.

[0054] Figure 10 yes Figure 7 A top view of the internal structure of the burner assembly shown.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Gas stove; 11. Housing; 11a. Mounting cavity; 11b. First clearance hole; 111. Mounting shell; 112. Cover plate; 12. Burner assembly; 121. Energy-concentrating chamber; 121a. Receiving space; 121b. Second clearance hole; 121c. Air inlet; 1211. Bottom shell; 12111. First placement part; 12111a. First sub-slot; 121111. First bottom plate part; 121112. First curved panel part; 12111 3. First side plate, 121114. Second side plate, 121115. Third side plate, 12112. Second placement part, 12112a. Second sub-slot, 121121. Second bottom plate, 121122. Second curved plate, 121123. Fourth side plate, 121134. Fifth side plate, 1212. Top cover, 122. Furnace head, 123. Fan, 124. Injector tube, 125. Air duct component, 13. Gas pipe;

[0057] X: width direction; Y: depth direction; Z: height direction. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0059] In this application, the terms "upper," "rear," "inner," "outer," and "middle," etc., indicate orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0060] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0061] Furthermore, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable link, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection via an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0062] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0063] Thermal efficiency is one of the most important indicators of a gas stove. Higher thermal efficiency means that a higher proportion of the heat generated during operation is effectively utilized. Improving the thermal efficiency of a gas stove allows for the same heating effect with less gas, helping to save gas and reduce energy waste. The main ways to improve thermal efficiency include reducing heat loss, heat recovery and reuse, and improving gas combustion efficiency. Related technologies primarily utilize heat-concentrating cooker supports to reduce heat loss, collect high-temperature flue gas for water heating to achieve heat recovery and reuse, and provide sufficient air (oxygen) to ensure complete combustion of the gas, thereby improving combustion efficiency.

[0064] Related studies have shown that increasing the temperature of the primary air in a gas stove can improve the combustion efficiency of the gas, thereby increasing the thermal efficiency of the gas stove. Specifically, for every 50°C increase in the primary air temperature, the theoretical combustion efficiency of the gas can increase by 3%-5%.

[0065] The inventors attempted to design a gas stove with a concentrating chamber, an injector tube inside the chamber, and a burner connected to it. An external fan was installed to blow air into the chamber. During stove use, the air blown into the chamber exchanges heat with the burner, and then, under pressure, enters the injector tube to mix with the gas. However, the inventors discovered that only a portion of the air exchanged heat with the burner actually enters the injector tube; most remains inside the chamber. This causes localized high pressure within the chamber, hindering the fan from continuing to blow air in. Increasing the fan's power is necessary to increase the amount of air entering the injector tube, but this further increases the pressure within the chamber. Furthermore, the heat from the air remaining inside the chamber cannot be utilized.

[0066] In view of this, embodiments of this application provide a gas stove that, by setting up an energy-concentrating chamber, houses a fan and an injector pipe inside the energy-concentrating chamber, and connects the burner head and the injector pipe inside the energy-concentrating chamber, with the burner head protruding to the outside of the energy-concentrating chamber. An air inlet is provided on the energy-concentrating chamber to connect to the interior of the chamber. With this configuration, when heating cookware using the gas stove, the fan draws air from outside the energy-concentrating chamber into its interior. The air entering the chamber absorbs heat through convection heat exchange with the burner head, thus raising the temperature. The fan then draws the heated air into the injector pipe, where it mixes with the gas, providing sufficient primary air for combustion. Because the fan is located inside the energy-concentrating chamber and connected to the injector, the fan can evenly distribute the preheated air entering the energy-concentrating chamber into the injector, thereby effectively improving the combustion efficiency of the gas and thus improving the thermal efficiency of the gas stove. At the same time, it prevents the air entering the energy-concentrating chamber from remaining inside for a long time, thus avoiding the problems of excessively high gas pressure inside the energy-concentrating chamber and insufficient heat recovery from the burner.

[0067] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0068] Please see Figures 1 to 2 ,in, Figure 1 This is a schematic diagram of the gas stove in the embodiments of this application. Figure 2 yes Figure 1 The diagram shows the internal structure of a gas stove.

[0069] In some embodiments, the gas stove 1 includes a housing 11, the housing 11 having a mounting cavity 11a and a first clearance hole 11b communicating with the mounting cavity 11a. It should be noted that the mounting cavity 11a can be used to accommodate some components of the gas stove 1, such as a control panel, part of the gas supply pipe, etc.

[0070] For example, the housing 11 includes a mounting shell 111 and a cover plate 112. The mounting shell 111 is a groove, and the cover plate 112 is placed on the groove. That is, the mounting shell 111 and the cover plate 112 together form the aforementioned mounting cavity 11a, and the cover plate 112 has the aforementioned first clearance hole 11b. The housing 11 formed by the mounting shell 111 and the cover plate 112 is generally hexahedral in shape, having two mutually perpendicular width directions X, depth directions Y, and height directions Z.

[0071] Understandably, the cover plate 112 may be equipped with a knob or button for adjusting the flame size and / or changing the flame combustion mode, as well as a button for ignition.

[0072] In some embodiments, the gas stove 1 further includes a burner assembly 12, which is disposed in the housing 11, specifically in the mounting housing 111, and extends from the mounting cavity 11a through the first clearance hole 11b to the outside of the housing 11, i.e., the outside of the mounting cavity 11a. The burner assembly 12 is used to heat cookware.

[0073] Please see also Figures 3 to 5 , Figure 3 yes Figure 2 A schematic diagram of the structure of the burner assembly. Figure 4 yes Figure 3 The diagram shown is a top view of the burner assembly. Figure 5 yes Figure 4 The diagram shows a cross-sectional view of the burner assembly along the A-A' direction.

[0074] In some embodiments, the burner assembly 12 includes a concentrating chamber 121 disposed in the mounting housing 111, the concentrating chamber 121 being located in the mounting cavity 11a. The concentrating chamber 121 has a receiving space 121a and a second clearance hole 121b communicating with the receiving space 121a, the second clearance hole 121b being arranged corresponding to the first clearance hole 11b. The concentrating chamber 121 also has an air inlet 121c communicating with the receiving space 121a, the air inlet 121c being used to allow air to be preheated to enter the receiving space 121a.

[0075] In some embodiments, the burner assembly 12 further includes a burner 122 disposed in the energy-concentrating chamber 121 and extending from the receiving space 121a to the outside of the housing 11 through a second clearance hole 121b and a first clearance hole 11b. It is understood that during use of the gas stove 1, the burner 122 is used to emit flames to heat cookware.

[0076] In some embodiments, the burner assembly 12 further includes a fan 123, which is disposed in the energy-concentrating chamber 121 and located in the receiving space 121a. It is understood that the fan 123 can create a negative pressure inside the energy-concentrating chamber 121, allowing air from outside the energy-concentrating chamber 121 to enter the receiving space 121a through the air inlet 121c.

[0077] In some embodiments, the burner assembly 12 further includes an injector tube 124, which is connected between the burner head 122 and the fan 123 and is located in the receiving space 121a. Thus, the fan 123 can draw air from the receiving space 121a and deliver it to the injector tube 124. With this configuration, when heating cookware using the gas stove 1, the fan 123 can draw air from outside the energy-concentrating chamber 121 into its interior. The air entering the energy-concentrating chamber 121 absorbs heat through convection heat exchange with the burner head 122, thereby raising the temperature. The fan 123 then draws the heated air into the injector tube 124, where it mixes with the gas, providing sufficient primary air for combustion. Because the blower 123 is connected to the injector 124, the blower 123 ensures sufficient air is provided for gas combustion, guaranteeing complete combustion and reducing the production of toxic and harmful gases such as CO and NO caused by incomplete combustion. Simultaneously, the air entering the energy-concentrating chamber 121 heats up after exchanging heat with the burner head 122, recovering heat transferred to the bottom of the burner head 122 and increasing the primary air temperature. This improves gas combustion efficiency and consequently, the thermal efficiency of the gas stove 1. In other words, this design achieves both heat recovery and reuse, and enhances gas combustion efficiency, effectively improving the thermal efficiency of the gas stove 1.

[0078] Understandably, since the fan 123 is located inside the energy-concentrating chamber 121 and connected to the injector pipe 124, the fan 123 can draw the preheated air entering the energy-concentrating chamber 121 into the injector pipe 124, effectively improving the combustion efficiency of the gas and thus improving the thermal efficiency of the gas stove 1. At the same time, because the air inside the energy-concentrating chamber 121 can be effectively utilized, there will be no situation where the air entering the energy-concentrating chamber 121 remains inside the energy-concentrating chamber 121 for a long time, thereby avoiding excessively high gas pressure inside the energy-concentrating chamber 121 and insufficient heat recovery from the burner head 122. Furthermore, since the ejector tube 124 is also located in the energy-concentrating chamber 121, the heat radiated by the burner head 122 is confined within the energy-concentrating chamber 121 to prevent heat loss. The heat radiated by the burner head 122 can also continuously and directly preheat the outer wall of the ejector tube 124, keeping the ejector tube 124 in a relatively high temperature environment and preventing a decrease in the combustion efficiency of the gas due to a large temperature difference between the inside and outside of the ejector tube 124.

[0079] In some embodiments, the orthographic projection of the burner head 122 onto the plane containing the air inlet 121c covers at least a portion of the air inlet 121c, meaning that at least a portion of the burner head 122 and the air inlet 121c are directly opposite each other. Thus, when air enters the interior of the energy-concentrating chamber 121 through the air inlet 121c, at least a portion of the airflow faces the burner head 122, allowing for direct convective heat exchange with the surface of the burner head 122. This improves the heat exchange efficiency between the air and the burner head 122, effectively increasing the temperature of the preheated air.

[0080] Of course, in some embodiments, the orthographic projection of the burner head 122 onto the plane containing the air inlet 121c can completely cover the air inlet 121c. That is, the burner head 122 is directly opposite the air inlet 121c. In this way, when air enters the interior of the energy-concentrating chamber 121 from the air inlet 121c, the airflow path is directly opposite the burner head 122, which can further improve the heat exchange efficiency between the air and the burner head 122, so as to more fully recover the heat of the burner head 122.

[0081] In some embodiments, the air inlet 121c and the fan 123 are located on opposite sides of the burner head 122 in the extending direction of the ejector tube 124. This arrangement extends the flow path of the air entering the energy-concentrating chamber 121 from the air inlet 121c, thereby extending the heat absorption time of this air. This results in more thorough preheating of the air, leading to a higher temperature and significantly increasing the temperature of the primary air, thereby improving the combustion efficiency of the gas and the thermal efficiency of the gas stove 1.

[0082] In some embodiments, the air inlet 121c, the burner head 122, and the fan 123 are arranged sequentially at intervals along the same straight line. With this arrangement, the air entering the energy-concentrating chamber 121 flows towards the burner head 122 under the action of the fan 123, causing convection on the surface of the burner head 122 to achieve sufficient heat exchange, thus increasing the temperature of the primary air. The preheated air flows in a straight line and reaches the fan 123, where it enters the ejector tube 124. This reduces contact between the airflow and other components, thereby minimizing heat exchange between the preheated air and other components, which would otherwise cause a drop in the temperature of the primary air.

[0083] Understandably, by setting up the energy-concentrating chamber 121, the fan 123 and the ejector tube 124 are located in the energy-concentrating chamber 121, and the burner head 122 extends from the inside of the energy-concentrating chamber 121 to the outside of the energy-concentrating chamber 121. That is, except for the part of the burner head 122 that sprays the flame, it is outside the energy-concentrating chamber 121. In this way, most of the components of the burner head assembly 12 are located in the energy-concentrating chamber 121, and most of the heat on the surface of the burner head 122 can be confined inside the energy-concentrating chamber 121, preventing the heat on the surface of the burner head 122 from being directly transferred to the air and causing heat loss. This helps to efficiently recover the heat on the surface of the burner head 122.

[0084] Please see also Figure 6 and Figure 7 , Figure 6 yes Figure 3 The diagram shown is an exploded view of the burner assembly. Figure 7 yes Figure 6 The diagram shows the internal structure of the burner assembly.

[0085] In some embodiments, the energy-concentrating chamber 121 includes a bottom shell 1211, a fan 123 and an ejector tube 124 disposed on the bottom shell 1211 and located within the bottom shell 1211. The burner head 122 is also disposed on the bottom shell 1211 and extends partially to the outside of the bottom shell 1211.

[0086] In some embodiments, the energy-concentrating chamber 121 further includes an upper cover 1212, which covers the bottom shell 1211 and together with the bottom shell 1211 forms a closed receiving space 121a. That is, the receiving space 121a formed by the energy-concentrating chamber 121 is closed except for the location where the air inlet 121c is located. This prevents air leakage from the energy-concentrating chamber 121, effectively limiting the distribution space of heat radiated by the burner head 122. This prevents heat loss due to air leakage after preheating, resulting in highly concentrated heat radiated from the burner head 122. This helps the air entering the energy-concentrating chamber 121 to fully absorb heat and heat up, effectively improving the preheating effect of the air and thus increasing the temperature of the primary air. This improves the combustion efficiency of the gas and the thermal efficiency of the gas stove 1. It is understood that the upper cover 1212 is provided with the aforementioned second clearance hole 121b.

[0087] For example, a sealing element (not shown) such as a rubber ring / strip, silicone ring / strip, or foam ring / strip can be provided between the bottom shell 1211 and the top cover 1212 to achieve a high level of sealing performance at the joint between the two, thereby obtaining a good heat insulation effect.

[0088] In some embodiments, the inner walls of both the bottom shell 1211 and the top cover 1212 may be provided with a heat insulation layer (not shown). This can further reduce heat loss caused by heat from the surface of the burner head 122 being conducted to the bottom shell 1211 and / or the top cover 1212, and then from the bottom shell 1211 and / or the top cover 1212 into the air. Optionally, the heat insulation layer may be made of materials such as foam, fiberglass, asbestos, or rock wool, and this application does not specifically limit it.

[0089] Please see also Figure 8 and Figure 9 , Figure 8 yes Figure 7 The diagram shown is a structural schematic of the bottom shell. Figure 9 yes Figure 8 The diagram shows a top view of the bottom shell.

[0090] In some embodiments, the bottom shell 1211 includes a first placement portion 12111 and a second placement portion 12112 connected to each other. The first placement portion 12111 has a first sub-slot 12111a, and the second placement portion 12112 has a second sub-slot 12112a communicating with the first sub-slot 12111a. The burner head 122 and the ejector tube 124 are both located in the first placement portion 12111 and within the first sub-slot 12111a. The blower 123 is located in the second placement portion 12112 and within the second sub-slot 12112a. It should be noted that, radially in the direction of the ejector tube 124, the second placement portion 12112 and the extension line of the ejector tube 124 are staggered in their respective extension directions. Understandably, the ejector tube 124 is usually also connected to the gas supply pipe 13. This facilitates the delivery of gas through the gas supply pipe 13 to the interior of the ejector tube 124. Therefore, by staggering the second placement part 12112 with the ejector tube 124, the gas supply pipe 13 connected to the ejector tube 124 can be avoided, allowing the end of the gas supply pipe 13 to extend into the energy-concentrating chamber 121 and connect normally with the ejector tube 124. At the same time, by avoiding the gas supply pipe 13, only the end of the gas supply pipe 13 connected to the ejector tube 124 is located inside the energy-concentrating chamber 121, rather than accommodating the gas supply pipe 13 within the energy-concentrating chamber 121. This reduces the overall volume of the energy-concentrating chamber 121, helping to concentrate the heat conducted from the surface of the burner head 122 into the air, facilitating collection and utilization. Furthermore, making the overall volume of the energy-concentrating chamber 121 smaller also helps to reduce the space occupied by the energy-concentrating chamber 121 inside the shell 11, which helps to improve the compactness of the internal structure of the gas stove 1 and realize the miniaturization and thinning design of the gas stove 1.

[0091] In some embodiments, the size of the second placement portion 12112 in the radial direction of the ejector tube 124 is smaller than the size of the first placement portion 12111. It is understood that, based on the staggered arrangement of the second placement portion 12112 and the ejector tube 124, setting the size of the second placement portion 12112 in the radial direction of the ejector tube 124 to be smaller than the size of the first placement portion 12111 in the radial direction of the ejector tube 124 can reduce the overall volume of the energy-concentrating chamber 121, allowing the heat radiated by the burner head 122 to be confined within a smaller space by the energy-concentrating chamber 121. This results in a more concentrated heat distribution, which is beneficial for improving the heat absorption efficiency of the primary air within the energy-concentrating chamber 121, thereby increasing the temperature of the primary air. Furthermore, since the fan 123 is located inside the second placement section 12112, it is beneficial for the air in the first placement section 12111 to converge toward the fan 123 when flowing toward the second placement section 12112, which can improve the collection effect of the preheated air and deliver the preheated air to the inside of the ejector tube 124.

[0092] In some embodiments, the first placement portion 12111 includes a first base plate portion 121111, a first curved panel portion 121112, a first side plate portion 121113, and a second side plate portion 121114. The burner head 122 and the ejector tube 124 are disposed on the first base plate portion 121111, for example, by screw fixing, snap-fit ​​fixing, welding fixing, etc. The first curved panel portion 121112 is connected to the first base plate portion 121111 and is perpendicular to the first base plate portion 121111, extending circumferentially along the burner head 122. Thus, when air enters the energy-concentrating chamber 121 from the outside through the air inlet 121c, the air can be distributed around the burner head 122, which can maximize the contact area between the air and the burner head 122, thereby improving the convection efficiency between the air and the surface of the burner head 122, enhancing the heat absorption of the air on the surface of the burner head 122, and making the air more fully preheated.

[0093] For example, the first curved panel portion 121112 can be an arc-shaped side plate. In this way, the space enclosed by the first curved panel portion 121112 is smaller than the space enclosed by a straight plate with the same side length and diameter as the first curved panel portion 121112, which is more conducive to concentrating the heat on the surface of the burner head 122. Of course, in other embodiments, the first curved panel portion 121112 can also be a curved side plate of other shapes.

[0094] Furthermore, the first side plate portion 121113 is connected to and perpendicular to the first bottom plate portion 121111, and is also connected to one side of the first curved panel portion 121112 in the circumferential direction of the burner head 122. The second side plate portion 121114 is connected to and perpendicular to the first bottom plate portion 121111, and is connected to the other side of the first curved panel portion 121112 in the circumferential direction of the burner head 122, and is arranged opposite to the first side plate portion 121113. In this way, the first bottom plate portion 121111, the first curved panel portion 121112, the first side plate portion 121113, and the second side plate portion 121114 together construct the aforementioned first sub-slot 12111a. When air enters the interior of the energy-concentrating chamber 121, the first side plate 121113 and the second side plate 121114 can also serve as guides, allowing the air to flow along the extension direction of the first side plate 121113 and the second side plate 121114 to the location of the fan 123.

[0095] In some embodiments, the first placement portion 12111 further includes a third side plate portion 121115, which is connected to and perpendicular to the first bottom plate portion 121111. The third side plate portion 121115 is also connected to the side of the second side plate portion 121114 facing away from the first curved plate portion 121112. The third side plate portion 121115 and the second side plate portion 121114 are arranged at an angle, such that the third side plate portion 121115 extends obliquely from the second side plate portion 121114 toward a direction closer to the first side plate portion 121113. In other words, the first placement part 12111 is designed to be narrow at the end opposite to the first curved panel part 121112 by setting an inclined extended third side plate part 121115, thereby reducing the overall volume of the first placement part 12111. This helps to reduce the overall volume of the energy-concentrating chamber 121, making the heat inside the energy-concentrating chamber 121 more concentrated, and improving the heat exchange efficiency with the primary air.

[0096] It is understood that a third clearance hole (not shown) may be provided on the third side plate portion 121115 so that the gas supply pipe 13 outside the energy storage chamber 121 can extend into the interior of the energy storage chamber 121 through the third clearance hole and connect to the ejector pipe 124.

[0097] In some embodiments, the included angle between the second side plate portion 121114 and the third side plate portion 121115 is α, and α satisfies the relationship: 90°≤α≤120°. For example, α can be 90°, 95°, 100°, 105°, 110°, 115°, 120°, or any other angle value within this range. Within this range, it helps to reasonably set the volume of the energy-concentrating chamber 121. While ensuring that the first placement portion 12111 has sufficient space to accommodate the burner head 122 and the ejector tube 124, the overall volume of the energy-concentrating chamber 121 is reduced, which can confine the heat radiated by the burner head 122 to a more concentrated space. When α < 90°, the space of the first placement portion 12111 may be too small to accommodate the burner head 122 and the ejector tube 124, and it is also impossible to avoid the end of the ejector tube 124 being far away from the burner head 122. When α > 120°, the first placement part 12111 is larger, resulting in a larger overall volume of the energy-concentrating chamber 121. This may cause the heat inside the energy-concentrating chamber 121 to be more dispersed, which is not conducive to recovering the heat inside the energy-concentrating chamber 121 through airflow to preheat the primary air.

[0098] In some embodiments, the connection between the second side plate portion 121114 and the third side plate portion 121115 is provided with a rounded chamfer, so that the inner wall between the second side plate portion 121114 and the third side plate portion 121115 is smoothly transitioned. This helps to reduce the wind resistance of the inner wall of the energy-concentrating chamber 121 to the airflow, which can increase the airflow velocity of the primary air and reduce the impact of the primary air on the inner wall of the energy-concentrating chamber 121, thereby reducing noise.

[0099] In some embodiments, the first base plate portion 121111, the first curved panel portion 121112, the first side plate portion 121113, the second side plate portion 121114, and the third side plate portion 121115 are integrally formed as a single component; that is, the first placement portion 12111 can be a single component. For example, the integral first placement portion 12111 can be formed by cutting, bending, and welding a single metal sheet, or by casting.

[0100] In some embodiments, the second placement portion 12112 includes a second base plate portion 121121, a second curved panel portion 121122, a fourth side panel portion 121123, and a fifth side panel portion 121124. The second base plate portion 121121 is connected to the first base plate portion 121111, the second curved panel portion 121122 is connected to the second base plate portion 121121 and is arranged circumferentially along the fan 123, the fourth side panel portion 121123 is connected to the second base plate portion 121121 and is located between the second curved panel portion 121122 and the first side panel portion 121113, and the fifth side panel portion 121124 is connected to the second base plate portion 121121 and is located between the second curved panel portion 121122 and the third side panel portion 121115. The second sub-groove 12112a is constructed from the second base plate portion 121121, the second curved plate portion 121122, the fourth side plate portion 121123, and the fifth side plate portion 121124.

[0101] It is understandable that the second curved panel portion 121122, the fourth side panel portion 121123 and the fifth side panel portion 121124 all extend perpendicularly to the second bottom plate portion 121121.

[0102] In some embodiments, the first side plate portion 121113 and the fourth side plate portion 121123 are arranged at an angle, such that the fourth side plate portion 121123 extends obliquely from the first side plate portion 121113 toward the direction of approaching the third side plate portion 121115. In this way, the fourth side plate portion 121123 tends to converge relative to the first side plate portion 121113, thereby reducing the volume of the second placement portion 12112 and thus reducing the overall volume of the energy-concentrating chamber 121.

[0103] In some embodiments, the ratio β between the first side plate portion 121113 and the fourth side plate portion 121123 satisfies the relationship: 140°≤β≤160°. For example, β can be 140°, 145°, 150°, 155°, 160°, or other angle values ​​that satisfy this relationship. Within this range, the overall volume of the energy-concentrating chamber 121 can be reduced while ensuring that the second placement portion 12112 has sufficient space to accommodate the fan 123, and the preheated air can be guided to the fan 123 by the inner wall of the energy-concentrating chamber 121. When β < 140°, the volume of the second placement portion 12112 may be too small to accommodate the fan 123. When β > 160°, the volume of the second placement portion 12112 may be too large, resulting in more dispersed heat within the energy-concentrating chamber 121 and hindering the flow of air to the location of the fan 123.

[0104] In some embodiments, the second base plate portion 121121, the second curved panel portion 121122, the fourth side plate portion 121123, and the fifth side plate portion 121124 are integrally formed as a single component, that is, the second placement portion 12112 can be a single component. For example, the integral second placement portion 12112 can be formed by cutting, bending, and welding a single metal sheet, or by casting.

[0105] It is understandable that the first placement part 12111 and the second placement part 12112 can also be configured as a single integrated component; in other words, the entire bottom shell 1211 is a single integrated component. This improves the overall structural strength of the bottom shell 1211 and enhances the sealing of the energy-concentrating chamber 121, preventing air leakage. It should be noted that since the burner head 122, fan 123, and ejector tube 124 are housed within the bottom shell 1211, corresponding screw holes are provided on the bottom shell 1211 for screws to be fitted and used to secure the burner head 122, fan 123, and ejector tube 124. These screw holes can be sealed using screws, or, when tightening the screws, can be sealed by adding sealing rings or other methods.

[0106] Since the bottom of the mounting shell 111 may be provided with bosses of different heights and sizes to cooperate with the bottom shell 1211 for limiting and fixing the bottom shell 1211, the first bottom plate portion 121111 and the second bottom plate portion 121121 may have different heights in the height direction Z of the shell 11 to cooperate with the bosses provided at the bottom of the mounting shell 111. This will not be elaborated here.

[0107] Please see also Figure 10 , Figure 10 yes Figure 7 A top view of the internal structure of the burner assembly shown.

[0108] In some embodiments, the burner assembly 12 further includes an air duct 125 extending radially along the ejector tube 124. One end of the air duct 125 is connected to a blower 123, and the other end is connected to the ejector tube 124, so that the ejector tube 124 connects the burner 122 and the blower 123. The air duct 125 is located in the first sub-slot 12111a, and the blower 123 blows preheated air from the receiving space 121a into the interior of the ejector tube 124 through the air duct 125. That is, the blower 123, the air duct 125, and the ejector tube 124 together form a closed air duct. Since the air duct component 125 extends radially along the ejector tube 124, the end of the air duct component 125 connected to the fan 123 is misaligned with the extension line of the ejector tube 124 in its own extension direction, thereby achieving a misaligned arrangement of the fan 123 and the ejector tube 124. At the same time, it ensures that the preheated air can be drawn into the air duct component 125 by the fan 123 and input into the ejector tube 124 through the air duct component 125, providing preheated primary air for the combustion of gas, thereby improving the combustion efficiency of gas and the thermal efficiency of the gas stove 1.

[0109] In some embodiments, the blower 123 is arranged on the side of the duct 125 away from the burner head 122. This allows the blower 123 to maintain an appropriate distance from the burner head 122 and utilizes the duct 125 to achieve a certain degree of heat insulation, preventing the blower 123 from being too close to the burner head 122 and affecting its normal operation under the high temperature of the burner head 122.

[0110] The gas stove provided in the embodiments of this utility model has been described in detail above. Specific examples have been used in this article to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the idea of ​​this utility model. There may be changes in the specific implementation and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A gas stove, characterized in that, include: The housing has a mounting cavity and a first clearance hole communicating with the mounting cavity; A burner assembly, wherein the burner assembly is disposed in the housing, and a portion of the burner assembly extends from the mounting cavity to the outside of the housing through the first clearance hole; The burner assembly includes: An energy-concentrating chamber is disposed in the housing and located in the mounting cavity. The energy-concentrating chamber has a receiving space and a second clearance hole communicating with the receiving space. The second clearance hole is correspondingly disposed with the first clearance hole. The energy-concentrating chamber is provided with an air inlet communicating with the receiving space. The air inlet is configured to allow air to enter the receiving space. A burner head is disposed in the energy-concentrating chamber, and the burner head portion extends from the receiving space to the outside of the housing through the second clearance hole and the first clearance hole; A fan is installed in the energy-concentrating chamber and located within the containment space; An ejector tube is connected between the furnace head and the blower and is located in the receiving space; The fan is used to allow air from outside the energy-concentrating chamber to enter the energy-concentrating chamber through the air inlet, and then allow air from inside the energy-concentrating chamber to enter the ejector tube.

2. The gas stove according to claim 1, characterized in that, The orthographic projection of the burner head onto the surface where the air inlet is located covers at least a portion of the air inlet.

3. The gas stove according to claim 2, characterized in that, In the extending direction of the ejector tube, the air inlet and the blower are located on opposite sides of the furnace head.

4. The gas stove according to claim 3, characterized in that, The air inlet, the burner head, and the fan are arranged sequentially at intervals along the same straight line.

5. The gas stove according to claim 1, characterized in that, The energy-concentrating chamber includes: The bottom shell, the blower and the ejector tube are disposed in the bottom shell and located in the bottom shell, and the furnace head is disposed in the bottom shell; The upper cover is disposed on the bottom shell and together with the bottom shell forms a closed receiving space, and the upper cover is provided with the second clearance hole.

6. The gas stove according to claim 5, characterized in that, The bottom shell includes: A first placement part, the first placement part having a first sub-slot, the furnace head and the ejector tube being disposed in the first placement part and located in the first sub-slot, and the air inlet being disposed in the first placement part; The second placement part is connected to the first placement part. In the radial direction of the ejector tube, the second placement part is staggered with the extension line of the ejector tube in its own extension direction. The second placement part has a second sub-slot that communicates with the first sub-slot. The fan is disposed in the second sub-slot. The radial direction of the ejector tube is perpendicular to the extension direction of the ejector tube.

7. The gas stove according to claim 6, characterized in that, The burner assembly also includes: A duct component extends radially along the ejector tube. One end of the duct component is connected to the fan, and the ejector tube is connected to the other end of the duct component, so that the ejector tube is connected between the furnace head and the fan. The duct component is located in the first sub-slot, and the fan blows preheated air from the accommodating space into the ejector tube through the duct component.

8. The gas stove according to claim 6, characterized in that, The first placement part includes: The furnace head and the ejector tube are located in the first base plate portion; The first curved panel is connected to the first base plate. The first curved panel is arranged around the circumference of the burner head, and the air inlet is located on the first curved panel. The first side plate is connected to the first bottom plate, and the first side plate is also connected to the first curved plate on one side of the furnace head in the circumferential direction. The second side plate is connected to the first bottom plate and is also connected to the first curved plate on the other side of the furnace head in the circumferential direction. The first side plate and the second side plate are arranged at intervals. The first bottom plate, the first curved plate, the first side plate and the second side plate form the first sub-slot.

9. The gas stove according to claim 8, characterized in that, In the radial direction of the ejector tube, the size of the second placement portion is smaller than the size of the first placement portion.

10. The gas stove according to any one of claims 1-9, characterized in that, The inner wall of the energy-concentrating chamber is provided with a heat insulation layer.

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