Household gas stove with auxiliary air inlet fan

Abstract

The utility model discloses a household gas stove with an auxiliary air inlet fan, relates to the technical field of gas stoves, in particular to the household gas stove with the auxiliary air inlet fan, and aims to improve the combustion efficiency and the heat efficiency. In order to achieve the purpose, the utility model adopts the following technical scheme that the gas stove comprises a stove body base, a burner and an air inlet fan, the burner and the air inlet fan are both arranged on the stove body base, an air outlet of the air inlet fan is provided with two air outlet pipes, and the two air outlet pipes are respectively inserted into a main air inlet and a side air inlet of the burner. The air outlet pipe is inserted in the main air inlet and the side air inlets in a suspended mode, and the main air inlet and the side air inlets are both in a non-sealing mode. The household gas stove can increase the air inlet amount, supply of combustion-supporting air is sufficient, flame is stable, and combustion is more sufficient; the device is simple in structure, convenient to install and reform and suitable for household daily use.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to a household gas stove with an auxiliary air intake fan, which aims to improve combustion efficiency and thermal efficiency. Background Technology

[0002] Household gas stoves, as the main heating device for kitchen cooking, are widely used in residential homes and the catering industry. Traditional household gas stoves mostly use an atmospheric burner structure, where natural gas or liquefied petroleum gas (LPG) is injected at high speed through a nozzle, creating a negative pressure in the injector tube to draw in a certain proportion of air for initial mixing, before ignition and combustion at the burner head. The advantages of this type of structure are its simplicity, low cost, and mature manufacturing process, but it also has significant drawbacks.

[0003] First, the intake air volume of natural injection is limited. Since the introduction of primary air relies on the negative pressure suction formed by the high-speed jet of gas, once the jet speed decreases, or the gas pressure is unstable or the air duct is blocked, insufficient air intake will occur, resulting in a "red flame" phenomenon, which indicates incomplete combustion, causing energy waste and pollution emissions.

[0004] Secondly, in enclosed or poorly ventilated kitchen environments, the oxygen concentration in the burner's space is insufficient, and air exchange is slow, further exacerbating incomplete combustion. This not only reduces thermal efficiency but also produces large amounts of harmful byproducts such as carbon monoxide and soot, endangering user health and environmental safety.

[0005] To address these shortcomings, some products in the industry have begun to incorporate fan-assisted combustion technology, using electric fans to actively deliver air into the combustion zone to improve the mixing efficiency of air and gas. However, most of these products on the market are currently used in commercial high-power stoves, and their fan structures are bulky and their circuits are complex, making them unsuitable for small stoves used in household settings. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings and deficiencies of existing technologies by providing a household gas stove with an auxiliary air intake fan. This fan increases the air intake volume of the gas stove, ensuring a sufficient supply of combustion air, a stable flame, and more complete combustion. It has a simple structure, is easy to install and modify, and is suitable for daily household use.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: it includes a stove base 1, a burner 2, and an air intake fan 3. Both the burner 2 and the air intake fan 3 are mounted on the stove base 1. The air intake fan 3 has two air outlet pipes 31 at its outlet, which are respectively inserted into the main air inlet 21 and the side air inlet 22 of the burner 2.

[0008] The air outlet duct 31 is suspended and inserted into the main air inlet 21 and the side air inlet 22, both of which are non-sealed. The air outlet duct 31 is directly inserted into the main air inlet 21 and the side air inlet 22, which are also non-sealed, allowing them to operate under normal conditions using natural air intake.

[0009] The air intake fan 3 is a DC motor driven blower. Using a DC motor ensures low-voltage operation of the fan motor, guarantees long-term operation of the fan, and ensures stable and safe operation over a long period of time, because the fan motor located near the burner will be working in a harsh environment with high temperature for a long time.

[0010] The air outlet duct 31 is a flexible hose, and the air outlet of the air inlet fan 3 is provided with two connectors 32, on which the air outlet duct 31 is inserted. The connectors 32 facilitate the replacement and connection of the air outlet duct 31.

[0011] The air intake fan 3 is controlled in conjunction with the burner ignition circuit via an electronic control device. This circuit linkage control allows for synchronized start-stop of the fan and the stove.

[0012] This utility model of a household gas stove incorporates a fan-assisted air intake system in its structure to improve combustion efficiency. Its working principle is as follows: When the user turns on the stove knob, the gas valve is opened, and gas enters the injector tube through the nozzle; simultaneously, the ignition needle is energized, emitting a high-voltage electric spark to ignite the primary flame formed by the ejected gas.

[0013] Unlike traditional stoves, this invention features an independent blower surrounding the injector tube of each burner assembly. This blower is connected to the injector tube via a flexible duct and starts simultaneously with ignition, actively drawing indoor air into the injector tube. This allows for a higher proportion and more uniform mixing of air and gas, improving the combustibility and combustion temperature of the mixture.

[0014] The fan is powered by either a built-in battery box or an external power source, and its start and stop are automatically controlled by a pulse igniter or a linkage control circuit. That is, as soon as the user ignites the gas or turns on the gas knob, the fan starts simultaneously, supplying air to coordinate with the ignition process; when the gas is turned off, the fan stops operating immediately.

[0015] By utilizing the forced air supply of the fan, the limitations of natural air intake are overcome, allowing the burner to receive more sufficient combustion air, resulting in a blue flame, stable and complete combustion, and effectively avoiding abnormal combustion phenomena such as "red flame" and "backfire." Combined with a thermocouple safety device, the system automatically shuts off the gas supply if the flame goes out, ensuring safety.

[0016] This utility model provides a household gas stove with an auxiliary air intake fan. By adding a fan-driven air supply structure to the traditional burner, it achieves multiple technical improvements and performance enhancements. The main technical effects include:

[0017] Improved combustion efficiency: The active air supply of the fan enhances the mixing effect of gas and air, making combustion more complete and effectively avoiding phenomena such as red flame and flameout. The flame is stable, the calorific value is released more completely, and the overall thermal efficiency is improved.

[0018] Energy saving and consumption reduction: Due to more complete combustion, heat loss is reduced, cooking time is shortened, and energy consumption is reduced. Users can save on gas costs in daily use, resulting in good energy-saving effects.

[0019] High adaptability: This device is more adaptable to non-ideal operating environments such as fluctuating gas pressure and poor ambient air circulation, and can maintain a stable combustion state even in enclosed kitchens or high-altitude areas.

[0020] Simple structure and easy to promote: The overall structure is reasonably designed, the fan is small in size and flexible in layout, and it is suitable for various models of household gas stoves. The manufacturing cost is well controlled, and it can be directly used for upgrading or modifying existing products, which is convenient for large-scale promotion. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Stove base; 2. Burner; 3. Air inlet fan; 31. Air outlet pipe; 21. Main air inlet; 22. Side air inlet; 32. Connecting pipe. Detailed Implementation

[0024] See Figure 1As shown, the technical solution adopted in this specific embodiment is as follows: It includes a stove base 1, a burner 2, and an air intake fan 3. Both the burner 2 and the air intake fan 3 are mounted on the stove base 1. The air intake fan 3 has two air outlet pipes 31, which are respectively inserted into the main air inlet 21 and the side air inlet 22 of the burner 2. The air outlet pipes 31 are suspended in the main air inlet 21 and the side air inlet 22, and both the main air inlet 21 and the side air inlet 22 are non-sealed. The air outlet pipes 31 are directly inserted into the main air inlet 21 and the side air inlet 22, which are non-sealed, allowing them to operate under normal conditions using natural air intake. The air intake fan 3 is a blower driven by a DC motor. The air outlet duct 31 is a flexible hose, and the air outlet of the air inlet fan 3 is provided with two connecting pipes 32, on which the air outlet duct 31 is inserted. The connecting pipes 32 facilitate the replacement and connection of the air outlet duct 31. The air inlet fan 3 is controlled in conjunction with the burner ignition circuit via an electronic control device.

[0025] The working principle of this invention is as follows: When the user turns on the stove knob, the gas valve is opened, and gas enters the injector tube through the nozzle. Simultaneously, the ignition needle is energized, emitting a high-voltage spark to ignite the initial flame formed by the emitted gas. Unlike traditional stoves, this invention features an independent blower around the injector tube of each burner assembly. This blower is connected to the injector tube via a flexible duct and starts simultaneously with ignition, actively blowing indoor air into the injector tube. This allows for a higher proportion and more uniform mixing of air and gas, improving the combustibility and combustion temperature of the mixture. The blower is powered by a built-in battery box or an external power source, and its start and stop are automatically controlled by a pulse igniter or a linkage control circuit. That is, whenever the user ignites or turns on the gas knob, the blower starts synchronously, supplying air to support the ignition process; when the gas is turned off, the blower stops operating. By utilizing the forced air supply of the fan, the limitations of natural air intake are overcome, allowing the burner to receive more sufficient combustion air, resulting in a blue flame, stable and complete combustion, and effectively avoiding abnormal combustion phenomena such as "red flame" and "backfire." Combined with a thermocouple safety device, the system automatically shuts off the gas supply if the flame goes out, ensuring safety.

[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A household gas stove with an auxiliary air intake fan, comprising a stove base (1) and a burner (2), characterized in that: It also includes an air intake fan (3), and the burner (2) and the air intake fan (3) are both set on the stove body base (1). The air outlet of the air intake fan (3) is provided with two air outlet pipes (31), and the two air outlet pipes (31) are respectively inserted into the main air inlet (21) and the side air inlet (22) of the burner (2).

2. A household gas stove with an auxiliary air intake fan according to claim 1, characterized in that: The air outlet pipe (31) is suspended and inserted into the main air inlet (21) and the side air inlet (22). Both the main air inlet (21) and the side air inlet (22) are non-sealed.

3. A household gas stove with an auxiliary air intake fan according to claim 1, characterized in that: The air intake fan (3) is a blower driven by a DC motor.

4. A household gas stove with an auxiliary air intake fan according to claim 1, characterized in that: The air outlet pipe (31) is a flexible hose. The air outlet of the air inlet fan (3) is provided with two plug pipes (32), and the air outlet pipe (31) is plugged into the plug pipes (32).

5. A household gas stove with an auxiliary air intake fan according to claim 1, characterized in that: The air intake fan (3) is controlled by the electronic control device in conjunction with the burner ignition circuit.

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