Burner and gas stove

Abstract

The present invention discloses a burner and a gas stove, wherein the burner comprises a hollow burner body, the burner body comprises an inner shell and an outer shell sleeved on the outer shell, the inner shell and the outer shell are sealed and connected at their openings, a combustion chamber is formed between the inner shell and the outer shell, an air inlet is provided on the outer shell, the inner shell has a concave cavity matching the outer wall of the pot, the bottom wall and the side wall of the outer shell are respectively provided with a plurality of nozzles, each nozzle is connected to an air inlet pipe, and the combustion chamber is connected to an exhaust device. The inner shell of the burner of the present invention wraps the outer wall of the pot, the heat exchange area between the burner and the pot is increased, the food in the pot is heated evenly, and at the same time, the flame is only in the combustion chamber, no open flame is generated, and the gas in the combustion chamber is discharged through the exhaust pipe, thereby improving the safety performance.

Description

Technical Field

[0001] The invention relates to a household appliance, in particular to a burner and a gas stove. Background Art

[0002] At present, the gas stoves on the market can only heat in one direction at the bottom of the pot, so the food in the lower layer of the pot is easy to get stuck, and the food in the upper layer is not easy to be heated evenly. In addition, when the flame of the stove is not fully burned, it is easy to produce harmful gases, which will harm the health of users. Summary of the invention

[0003] The object of the present invention is to provide a burner and a gas stove to solve the technical problem that the existing gas stove can only heat the bottom of the pot when in use, resulting in uneven heating of the food in the pot.

[0004] To achieve the above object, the specific technical solutions of a burner and a gas stove of the present invention are as follows:

[0005] A burner comprises a hollow burner body, wherein the burner body comprises an inner shell and an outer shell sleeved on the inner shell, the inner shell and the outer shell are sealed and connected at their openings, a combustion chamber is formed between the inner shell and the outer shell, an air inlet is provided on the outer shell, the inner shell has a concave cavity matching the outer wall of the cookware, a plurality of nozzles are respectively provided on the bottom wall and the side wall of the outer shell, each nozzle is connected to an air inlet pipe, and the combustion chamber is connected to an exhaust device.

[0006] Furthermore, both the inner shell and the outer shell are trough bodies with openings facing upward, and the openings of the inner shell and the outer shell are folded outward to form connecting walls. The burner body also includes a connecting plate, and the two ends of the connecting plate are fixedly connected to the connecting walls of the inner shell and the outer shell, so that the burner body forms a hollow combustion chamber.

[0007] Furthermore, the nozzle includes a plurality of first nozzles arranged on the bottom wall of the shell, the plurality of first nozzles are connected to one end of the first air intake pipe, and the other end of the first air intake pipe is connected to the main air intake pipe.

[0008] Furthermore, the plurality of first nozzles are distributed on concentric rings with different diameters, or the plurality of first nozzles are evenly distributed on the bottom wall of the shell.

[0009] Furthermore, the nozzle also includes a plurality of second nozzles arranged on the side wall of the shell, and the plurality of second nozzles are all connected to a second air intake pipe, and the end of the second air intake pipe is connected to the main air intake pipe.

[0010] Furthermore, the multiple second nozzles are divided into multiple groups, and the multiple groups of second nozzles are arranged in sequence from top to bottom along the axial direction of the side wall of the outer shell. Each group of second nozzles is evenly distributed along the circumference of the side wall of the outer shell. A section valve is provided on the second air intake pipe connected to each group of second nozzles, and the section valve is electrically connected to the controller.

[0011] Furthermore, temperature sensors are respectively arranged on the bottom outer wall and the top of the outer wall of the inner shell, and a proportional valve for adjusting the amount of gas entering the first intake pipe and the second intake pipe is provided on the main intake pipe. The proportional valve and the temperature sensor are electrically connected to the controller.

[0012] Furthermore, the exhaust device includes an exhaust pipe connected to the connecting plate, a fan is provided on the exhaust pipe, and the fan is electrically connected to the controller.

[0013] Furthermore, the air inlet is arranged on the bottom wall of the shell, and a one-way valve is arranged at the air inlet. When the exhaust device is opened, negative pressure is formed in the combustion chamber, and the one-way valve is opened.

[0014] Furthermore, a gas sensor is provided on the exhaust pipe for detecting the carbon monoxide content in the post-combustion gas. There are multiple air inlets, and a one-way valve with a different opening pressure threshold is provided at each air inlet. When the gas sensor detects that the carbon monoxide content exceeds the threshold, the number of one-way valves opened is increased.

[0015] Furthermore, an ignition needle and a fire detection needle are provided at the end of the bottom wall of the shell, and the fire detection needle is electrically connected to the controller.

[0016] A gas stove comprises a stove top and the above-mentioned burner. The stove top is provided with a mounting hole for fixing the burner, and the burner is fixed in the mounting hole.

[0017] A burner and a gas stove of the present invention have the following advantages:

[0018] The inner shell of the burner described in the present invention wraps around the outer wall of the cookware, and the heat exchange area between the burner and the cookware is increased, so that the food in the cookware is heated evenly. At the same time, the flame is only in the combustion chamber, and no open flame is generated. The gas in the combustion chamber is discharged through the exhaust pipe, which improves the safety performance. On the other hand, the side walls and bottom wall of the outer shell of the burner are provided with multiple layers of annularly distributed nozzles. When replacing cookware of different heights, the cookware is heated by opening the nozzles at a height equivalent to the height of the cookware, which saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the burner of the present invention.

[0020] Explanation of the numbers in the figure: 1. Burner body; 11. Inner shell; 12. Outer shell; 13. Temperature sensor; 14. Air inlet; 2. First nozzle; 3. Second nozzle; 4. First air inlet pipe; 5. Second air inlet pipe; 51. Sectional valve; 6. Main air inlet pipe; 61. Safety valve; 62. Proportional valve; 7. Exhaust pipe; 71. Fan; 8. Controller; 9. Ignition needle; 91. Fire detection needle. DETAILED DESCRIPTION

[0021] In order to better understand the purpose, structure and function of the present invention, a burner and a gas stove of the present invention are further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the present application provides a burner, including a hollow burner body 1, the burner body 1 includes an inner shell 11 and an outer shell 12 sleeved on the outer shell 11, the inner shell 11 and the outer shell 12 are sealed and connected at the opening, a combustion chamber is formed between the inner shell 11 and the outer shell 12, an air inlet 14 is provided on the outer shell 12, the inner shell 11 has a concave cavity matching the outer wall of the pot, the bottom wall and the side wall of the outer shell 12 are respectively provided with a plurality of nozzles, each nozzle is connected to the air inlet pipe, and the combustion chamber is connected to an exhaust device. The inner shell 11 wraps the outer wall of the pot, the heat exchange area between the burner and the pot is increased, so that the food in the pot is evenly heated, and at the same time, the flame is only in the combustion chamber, no open flame is generated, and the gas in the combustion chamber is discharged through the exhaust device, thereby improving the safety performance.

[0023] The inner shell 11 and the outer shell 12 are both trough bodies with openings facing upward. The diameter of the side wall of the inner shell 11 is smaller than the diameter of the side wall of the outer shell 12. The bottom wall of the inner shell 11 is above the bottom wall of the outer shell 12. The openings of the inner shell 11 and the outer shell 12 are respectively folded outward to form connecting walls. The burner body 1 also includes a connecting plate for connecting the inner shell 11 and the outer shell 12. The two ends of the connecting plate are respectively fixedly connected to the connecting walls of the inner shell 11 and the outer shell 12, so that the burner body 1 forms a hollow combustion chamber.

[0024] The nozzle includes a plurality of first nozzles 2 arranged on the bottom wall of the housing 12, and the plurality of first nozzles 2 are connected through a pipe, and the pipe is commonly connected to one end of the first air intake pipe 4, and the other end of the first air intake pipe 4 is connected to the main air intake pipe 6. In order to ensure uniform heating of the bottom surface of the burner, the plurality of first nozzles 2 are distributed on concentric rings of different diameters, or the plurality of first nozzles 2 are evenly distributed on the bottom wall of the housing 12.

[0025] The nozzle further includes a plurality of second nozzles 3 arranged on the side wall of the housing 12 . The plurality of second nozzles 3 are all connected to a second air intake pipe 5 , and the ends of the second air intake pipe 5 are connected to the main air intake pipe 6 .

[0026] The plurality of second nozzles 3 are divided into a plurality of groups. The plurality of groups of second nozzles 3 are sequentially arranged from top to bottom along the axial direction of the side wall of the shell 12 . Each group of second nozzles 3 is evenly distributed along the circumference of the side wall of the shell 12 .

[0027] The second air inlet pipe 5 connected to each group of second nozzles 3 is provided with a sectional valve 51 for controlling the opening and closing of the corresponding pipeline, and the sectional valve 51 is electrically connected to the controller 8. The sectional valve 51 is used to control the opening of the second nozzles 3 of a specific layer, so as to be suitable for different types of pots or when the height of the food placed in the pot is different, heating is only performed at the nozzle height corresponding to the height of the food in the pot.

[0028] In order to make the pot heated more evenly, temperature sensors 13 are respectively arranged on the outer wall of the bottom and the top of the outer wall of the inner shell 11, and a proportional valve 62 for adjusting the amount of gas entering the first intake pipe 4 and the second intake pipe 5 is arranged on the main intake pipe 6. A safety valve 61 is arranged on the main intake pipe 6. The safety valve 61, the proportional valve 62, and the temperature sensor 13 are all electrically connected to the controller 8. The controller 8 detects the temperature signal of the temperature sensor 13 to determine whether there is a difference in temperature between the bottom wall and the side wall of the inner shell 11. When the temperature difference between the two exceeds the temperature threshold, the controller 8 adjusts the proportional valve 62 to make the temperatures at different positions close. For example, when the bottom temperature is too high, the proportional valve 62 is adjusted to reduce the amount of gas entering the first intake pipe 4.

[0029] The exhaust device includes an exhaust pipe 7, one end of which is connected to the connecting plate, and the other end of which is connected to the gas collector. The exhaust pipe 7 is provided with a fan 71, and the fan 71 is electrically connected to the controller 8. By discharging and collecting the gas after combustion in the combustion chamber, the safety performance is greatly improved.

[0030] During the gas combustion process, air and gas need to be mixed in a certain proportion. The air inlet 14 is arranged on the bottom wall of the outer shell 12, and a one-way valve is arranged at the air inlet 14. After the fan 71 is turned on, a negative pressure is formed in the combustion chamber, and the one-way valve is opened. After the fan 71 is turned off, the one-way valve is closed.

[0031] A gas sensor is provided on the exhaust pipe 7 for detecting the carbon monoxide content in the gas after combustion to determine whether the gas is fully burned. There are multiple air inlets 14, and each air inlet 14 is provided with a one-way valve with a different opening pressure threshold. When the gas sensor detects that the carbon monoxide content after combustion exceeds the threshold, the controller 8 increases the fan speed to increase the negative pressure in the combustion chamber, thereby adjusting the opening number of the one-way valve.

[0032] An ignition needle 9 and a fire detection needle 91 are provided at the end of the bottom wall of the housing 12 , and the fire detection needle 91 is electrically connected to the controller 8 .

[0033] The present application also provides a gas stove, including a stove and the above-mentioned burner, wherein the stove is provided with a mounting hole for fixing the burner, and the burner is fixed in the mounting hole. By providing the above-mentioned burner, the heat exchange area between the burner and the pot is increased, so that the food in the pot is heated more evenly, and the safety performance is greatly improved.

[0034] The inner shell 11 of the burner wraps around the outer wall of the cookware, and the heat exchange area between the burner and the cookware is increased, so that the food in the cookware is heated evenly. At the same time, the flame is only in the combustion chamber, and no open flame is generated. The gas in the combustion chamber is discharged through the exhaust pipe 7, which improves the safety performance. On the other hand, the side walls and bottom walls of the outer shell 12 of the burner are provided with multiple layers of annularly distributed nozzles. When replacing cookware of different heights, the cookware is heated by opening the nozzles at a height equivalent to the height of the cookware, which saves energy.

[0035] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A burner, comprising a hollow burner body (1), the burner body (1) comprising an inner shell (11) and an outer shell (12) sleeved outside the inner shell (11), the inner shell (11) and the outer shell (12) being sealed at their openings, a combustion chamber being formed between the inner shell (11) and the outer shell (12), an air inlet (14) being provided on the outer shell (12), characterized in that: The inner shell (11) has a concave cavity matching the outer wall of the cooker, and the bottom wall and side wall of the outer shell (12) are respectively provided with a plurality of nozzles, each nozzle is connected to an air intake pipe, and the combustion chamber is connected to an exhaust device; The inner shell (11) and the outer shell (12) are both trough bodies with openings facing upwards, and the openings of the inner shell (11) and the outer shell (12) are respectively folded outwards to form connecting walls, and the burner body (1) also includes a connecting plate, and the two ends of the connecting plate are respectively fixedly connected to the connecting walls of the inner shell (11) and the outer shell (12), so that the burner body (1) forms a hollow combustion chamber; The nozzle comprises a plurality of first nozzles (2) arranged on the bottom wall of the housing (12); the plurality of first nozzles (2) are connected to one end of a first air intake pipe (4); and the other end of the first air intake pipe (4) is connected to a main air intake pipe (6).

2. The burner according to claim 1, characterized in that The plurality of first nozzles (2) are distributed on concentric rings of different diameters, or the plurality of first nozzles (2) are evenly distributed on the bottom wall of the outer shell (12).

3. The burner according to claim 1, characterized in that The nozzle also includes a plurality of second nozzles (3) arranged on the side wall of the outer shell (12); the plurality of second nozzles (3) are all connected to a second air intake pipe (5); and the end of the second air intake pipe (5) is connected to the main air intake pipe (6).

4. The burner according to claim 3, characterized in that The plurality of second nozzles (3) are divided into a plurality of groups. The plurality of groups of second nozzles (3) are arranged in sequence from top to bottom along the axial direction of the side wall of the outer shell (12). Each group of second nozzles (3) is evenly distributed along the circumference of the side wall of the outer shell (12). A segmentation valve (51) is provided on the second air inlet pipe (5) connected to each group of second nozzles (3). The segmentation valve (51) is electrically connected to the controller (8).

5. The burner according to claim 4, characterized in that Temperature sensors (13) are respectively arranged on the bottom outer wall and the top of the outer wall of the inner shell (11); a proportional valve (62) for adjusting the amount of gas entering the first intake pipe (4) and the second intake pipe (5) is arranged on the main intake pipe (6); the proportional valve (62) and the temperature sensor (13) are both electrically connected to the controller (8).

6. The burner according to claim 1, characterized in that The exhaust device comprises an exhaust pipe (7), one end of the exhaust pipe (7) is connected to the connection plate, the other end of the exhaust pipe (7) is connected to the gas collector, a fan (71) is provided on the exhaust pipe (7), and the fan (71) is electrically connected to the controller (8).

7. The burner according to claim 1, characterized in that The air inlet (14) is arranged on the bottom wall of the shell (12), and a one-way valve is arranged at the air inlet (14). When the exhaust device is opened, negative pressure is formed in the combustion chamber, and the one-way valve is opened.

8. The burner according to claim 7, characterized in that The exhaust device comprises an exhaust pipe (7), on which a gas sensor is provided for detecting the carbon monoxide content in the post-combustion gas. There are a plurality of air inlets (14), and each air inlet (14) is provided with a one-way valve having a different opening pressure threshold. When the gas sensor detects that the carbon monoxide content exceeds the threshold, the number of one-way valves opened is increased.

9. The burner according to claim 1, characterized in that An ignition needle (9) and a fire detection needle (91) are provided at the end of the bottom wall of the housing (12), and the fire detection needle (91) is electrically connected to the controller (8).

10. A gas stove, characterized in that: The invention comprises a stove and a burner as claimed in any one of claims 1 to 9, wherein the stove is provided with a mounting hole for fixing the burner, and the burner is fixed in the mounting hole.

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