No-clean kitchen integrated stove with brushless motor air volume expander

Abstract

The invention relates to the technical field of household kitchens, and discloses a no-clean kitchen integrated cooker with a brushless motor air volume expander, which comprises a shell forming an integral external frame of the integrated cooker; the smoke suction port is formed in the upper part of the shell and is used for sucking oil smoke on a cooking range; the air volume adjusting assembly is arranged in the shell and used for adjusting the fluid air volume to achieve air volume expansion; the air volume input port is arranged at the small horn end of the air volume amplifier and is connected with the inner wall of the hollow column; and the air volume output port is arranged at the large horn end of the air volume amplifier and is connected with an external smoke exhaust channel. Oil contamination accumulation and efficiency reduction caused by the fact that oil fume makes direct contact with the impeller are avoided through the air volume amplifier, the air volume amplifier is combined with the brushless motor, efficient and stable air source output is provided, smoke exhaust is smoother, the smoke exhaust efficiency is improved, meanwhile, rotation unbalance caused by oil accumulation of the impeller is avoided, long-time efficient and stable operation of equipment is kept, and the mechanical efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of home kitchens, and in particular to a cleaning-free kitchen integrated stove with a brushless motor air volume expander. Background Art

[0002] At present, the exhaust system of traditional integrated stoves usually uses an electric motor to drive the impeller to rotate, forming a negative pressure area at the entrance of the exhaust pipe, thereby sucking in the oil fume gas above the stove, and then purifying it through the filter net and discharging it into the exhaust pipe, and finally discharging it to the outside. This design relies on the high-speed rotation of the impeller to drive the airflow. Its principle is simple and has a certain exhaust effect. However, although it has been widely used in the field of integrated stoves, its technical limitations have gradually become apparent with long-term use.

[0003] Although the filter can intercept some oil smoke particles, a large amount of oil smoke still directly enters the exhaust pipe and passes through the impeller. These oil smoke will not only deposit on the inner wall of the exhaust pipe, causing pollution, but also form uneven oil accumulation on the surface of the impeller, causing the impeller to become unbalanced during high-speed rotation. This imbalance directly leads to a decrease in the fan's rotation efficiency, a weakened exhaust capacity, and further aggravates the noise problem during mechanical operation. In addition, due to the complex structure of the equipment, especially the cavity and impeller parts, a large amount of oil pollution often accumulates after long-term use, making the cleaning and maintenance process very difficult. Disassembly and cleaning work is not only time-consuming and laborious, but also requires professional operation, and the cleaning effect is often difficult to be satisfactory due to aging of the equipment or improper cleaning. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a no-clean kitchen integrated stove with a brushless motor air volume expander, which solves the problems of low smoke exhaust efficiency, increased mechanical noise and difficulty in cleaning caused by oil accumulation in the impeller of traditional integrated stoves.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a no-cleaning kitchen integrated stove with a brushless motor air volume expander, comprising:

[0006] A housing, which forms the overall outer frame of the integrated stove;

[0007] A smoke inlet is arranged above the housing and is used to inhale the fumes from the stove;

[0008] An air volume adjustment component is arranged in the housing and is used to adjust the fluid air volume to achieve air volume expansion;

[0009] The air volume input port is arranged at the small horn end of the air volume amplifier and is connected to the inner wall of the hollow column;

[0010] The air volume output port is arranged at the large speaker end of the air volume amplifier and is connected to the external smoke exhaust channel.

[0011] Preferably, the air volume regulating component includes an air volume amplifier, which is horn-shaped as a whole, and a hollow column is provided at one end of the small horn of the air volume amplifier. The interior of the air volume amplifier can be set to three channels, and a control end is provided at the end away from the air volume input port and the air volume output port. A plurality of brushless motors are installed inside the hollow column through holes distributed in a circular array.

[0012] Preferably, a control end is provided inside the air volume expander, and the brushless motor controls the blade drive through the control end.

[0013] Preferably, the smoke inhalation port is designed in a tapered-diffusion shape, and cooperates with the smoke exhaust port to form a negative pressure zone above the shell, thereby enhancing the efficiency of oil fume inhalation.

[0014] Preferably, the cross-sectional area of ​​one end of the air volume outlet is larger than the cross-sectional area of ​​one end of the control end.

[0015] Preferably, the air volume expander is trumpet-shaped as a whole, and the specific shape is determined by the boundary layer and diffusion angle of the fluid diffusing in infinite space.

[0016] Preferably, the internal diffusion angle of the air volume expander and the cross-sectional area of ​​the horn position are optimized by means of a fluid motion balance equation.

[0017] Preferably, the optimization of the fluid motion equilibrium equation comprises the following steps:

[0018] a. The cross-sectional areas of the air volume inlet, control end and air volume outlet are S respectively 2， S 1， S3, the corresponding wind speed is U2, U1, U3 corresponding wind volume is Q2, Q1, Q3;

[0019] b. Establish a formula for calculating air volume, where air volume is calculated by multiplying the cross-sectional area and wind speed:

[0020] Q=S×U

[0021] So the calculation process is as follows:

[0022] Q2=S2×U2, Q1=S1×U1, Q3=S3×U3

[0023] It is assumed that the cross-sectional area of ​​the output end S3 of the air volume expander is larger than that of the control end S1, satisfying S 3＞ S1;

[0024] Thus, according to the fluid balance equation, and substituting the air volume formula into it, we get:

[0025] K=S3×U1 / S1×U3≈S3 / S1×0.5

[0026] Among them, by adjusting the geometric parameters S3 and S1, and the control end wind speed U1, the expansion amount K is optimized to meet the smoke exhaust requirements.

[0027] The present invention provides a non-cleaning kitchen integrated stove with a brushless motor air volume expander.

[0028] Beneficial effects:

[0029] 1. The present invention replaces the traditional impeller smoke exhaust method with an air volume expander, completely eliminating the impeller and fan blade design in the smoke exhaust channel. The oil smoke no longer comes into direct contact with the rotating parts, avoiding the pollution and reduced operating efficiency caused by oil accumulation on the impeller and the inner wall of the smoke exhaust duct in traditional equipment. In addition, through the optimized fluid mechanics design, the air volume expander is combined with the brushless motor to provide efficient and stable wind source output, the entire smoke exhaust process is smoother, and the smoke exhaust efficiency is significantly improved. At the same time, the rotation imbalance caused by oil accumulation in the impeller is avoided, the equipment is kept running efficiently for a long time, and the mechanical efficiency is significantly improved.

[0030] 2. The present invention eliminates the complex design of mechanical components and utilizes the geometric diffusion effect of the air volume amplifier to enable the oil smoke to be quickly discharged to the outside. There is almost no oil residue inside the exhaust channel, thereby realizing the function of no need to disassemble the machine and no need to clean, reducing the user's maintenance cost and cleaning difficulty. In addition, the combination of the brushless motor and the air volume amplifier optimizes the power output required for exhaust. Compared with traditional impeller equipment, the air volume is larger and the energy consumption is lower, further realizing the energy-saving effect. The simplified design and efficient operation mode jointly ensure the economy and ease of use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a plan view of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the air volume expander of the present invention;

[0033] Figure 3 It is a schematic diagram of the principle of the air volume expander of the present invention.

[0034] Among them, 1. Shell; 2. Smoke outlet; 3. Air volume amplifier; 4. Brushless motor; 5. Air volume input port; 6. Air volume output port; 7. Smoke exhaust port; 8. Hollow column; 9. Control terminal. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Please refer to the attached Figure 1 The embodiment of the present invention provides a non-cleaning kitchen integrated stove with a brushless motor air volume expander, comprising:

[0037] A housing 1, which forms the overall outer frame of the integrated stove;

[0038] A smoke inlet 2, which is arranged above the housing 1 and is used to inhale the fumes from the stove;

[0039] An air volume regulating component, which is arranged in the housing 1 and is used to regulate the fluid air volume to achieve air volume expansion;

[0040] The air volume input port 5 is arranged at the small horn end of the air volume amplifier 3 and is connected to the inner wall of the hollow column 8;

[0041] The air volume output port 6 is arranged at the large speaker end of the air volume amplifier 3 and is connected to the external smoke exhaust channel.

[0042] Specifically, when the air volume expander 3 is working, the air above the smoke outlet 2 forms a negative pressure zone; this negative pressure effect causes the oil fume gas generated above the stove to be quickly captured by the smoke outlet 2 and enter the air volume expander 3 through the air volume input port 5; the formation of this negative pressure area is achieved by the air flow drive provided by the brushless motor 4 inside the air volume expander 3 and the trumpet-shaped geometric channel design, which effectively improves the oil fume adsorption efficiency. The smoke outlet 2 is located above the integrated stove and is used to preliminarily collect the oil fume and guide the oil fume to the air volume input port 5; the air volume input port 5 is connected to the small trumpet of the air volume expander 3 to introduce the negative pressure adsorbed airflow into the air volume expander 3; the air volume output port 6 is connected to the smoke exhaust port 7, and the high-speed airflow is discharged to the outside from there; the entire system forms a continuous and smooth oil fume adsorption and emission channel through the close cooperation of these structures, the smoke outlet 2 is designed in a tapered diffusion shape, and cooperates with the smoke exhaust port 7 to form a negative pressure zone above the shell 1 to enhance the oil fume suction efficiency.

[0043] Please refer to the attached Figure 2 -Attached Figure 3The air volume regulating component includes an air volume amplifier 3, which is horn-shaped as a whole. A hollow column 8 is provided at one end of the small horn of the air volume amplifier 3. The inside of the air volume amplifier 3 can be set to three channels, and a control end 9 is provided at one end away from the air volume input port 5 and the air volume output port 6. A plurality of brushless motors 4 are installed inside the hollow column 8 through holes distributed in a ring array. A control end 9 is provided inside the air volume amplifier 3. The brushless motor 4 controls the blade drive through the control end 9. The design shape of the smoking port 2 is a tapered diffusion type, and cooperates with the smoke exhaust port 7 to form a negative pressure area above the shell 1 to enhance the efficiency of oil fume suction. The cross-sectional area of ​​one end of the air volume output port 6 is larger than the cross-sectional area of ​​one end of the control end 9. The air volume amplifier 3 is horn-shaped as a whole. The specific shape is determined according to the boundary layer and diffusion angle of the fluid diffusion in infinite space. The internal diffusion angle of the air volume amplifier 3 and the cross-sectional area of ​​the horn position are optimized by the fluid motion balance equation. The fluid motion balance equation optimization includes the following steps:

[0044] a. The cross-sectional areas of the air volume inlet 5, the control terminal 9 and the air volume outlet 6 are S 2， S 1， S3, the corresponding wind speed is U2, U1, U3 corresponding wind volume is Q2, Q1, Q3;

[0045] b. Establish a formula for calculating air volume, where air volume is calculated by multiplying the cross-sectional area and wind speed:

[0046] Q=S×U

[0047] So the calculation process is as follows:

[0048] Q2=S2×U2, Q1=S1×U1, Q3=S3×U3

[0049] It is assumed that the cross-sectional area of ​​the output end S3 of the air volume expander is larger than that of the control end S1, satisfying S 3＞ S1;

[0050] Thus, according to the fluid balance equation, and substituting the air volume formula into it, we get:

[0051] K=S3×U1 / S1×U3≈S3 / S1×0.5

[0052] Among them, by adjusting the geometric parameters S3 and S1, and the control end wind speed U1, the expansion amount K is optimized to meet the smoke exhaust requirements.

[0053] Specifically, the main body of the air volume expander 3 is designed as a trumpet-shaped cylindrical body with a circular cross-section; its large trumpet end is the air volume output port 6 for discharging high-speed airflow; the small trumpet is connected to the outer wall of the hollow column 8 and extends to the input end to form the air volume input port 5; the outer wall of the hollow column 8 is a solid structure with a plurality of holes distributed thereon, each of which is loaded with a brushless motor 4 and a fan blade for generating an initial air source airflow; this design enables the fluid channel of the air volume expander to effectively guide and amplify the airflow, and the air volume amplification effect of the air volume expander 3 comes from its geometric design and fluid mechanics characteristics; its output end, that is, the air volume output port 6, has a cross-sectional area S3 much larger than the cross-sectional area S1 of the air outlet at the control end 9, even if the initial airflow speed U1 driven by the brushless motor 4 decays to 0.5U1 during the diffusion process, it can still form an effect at the output end 6 that is much larger than the air volume at the control end 9; through the principle of fluid balance, the air volume input port 5 will also inhale the corresponding airflow, forming a continuous suction force that runs through the smoking port 2, thereby achieving air volume doubling and efficient smoke exhaust.

[0054] Working principle: When the housing 1 is working, the brushless motor 4 in the air volume amplifier 3 drives the fan blades to generate high-speed airflow, and transports the gas to the outside through the air volume outlet 6 and the smoke exhaust port 7. At the same time, the air volume amplifier 3 amplifies the air volume due to its trumpet-shaped structure, so that the air volume at the air volume outlet 6 is much larger than the initial air volume of the wind source. Its internal fluid channel is designed as a three-way structure. After the initial airflow from the control end 9 enters the air volume amplifier 3, the air volume input port 5 forms suction through geometric amplification and fluid balance, thereby generating a negative pressure zone above the smoking port 2 and the housing 1. The negative pressure zone quickly absorbs the oil fume gas and is discharged to the outside through the smoking port 2, the air volume input port 5, the air volume amplifier 3, the air volume output port 6 and the smoke exhaust port 7, thereby achieving an efficient smoke exhaust effect.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A no-clean kitchen integrated stove with a brushless motor air volume expander, characterized in that: include: A housing (1) which forms the overall outer frame of the integrated stove; A smoke inlet (2) is arranged above the housing (1) and is used to inhale the fumes from the stove; An air volume adjustment component, which is arranged in the housing (1) and is used to adjust the fluid air volume to achieve air volume expansion; The air volume input port (5) is arranged at the small horn end of the air volume amplifier (3) and is connected to the inner wall of the hollow column (8); The air volume output port (6) is arranged at the large speaker end of the air volume amplifier (3) and is connected to the external smoke exhaust channel.

2. The no-clean kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The air volume regulating component comprises an air volume amplifier (3), the air volume amplifier (3) being in the shape of a trumpet as a whole, a hollow column (8) being arranged at one end of the trumpet of the air volume amplifier (3), the interior of the air volume amplifier (3) being arranged to have three channels, a control end (9) being arranged at one end away from the air volume input port (5) and the air volume output port (6), and a plurality of brushless motors (4) being installed inside the hollow column (8) through holes distributed in a ring array.

3. The non-cleaning kitchen integrated stove with a brushless motor air volume expander according to claim 2, characterized in that: The air volume expander (3) is provided with a control terminal (9) inside, and the brushless motor (4) controls the blade drive via the control terminal (9).

4. The non-cleaning kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The shape of the smoke inlet (2) is designed to be a gradually shrinking and diffusing type, and cooperates with the smoke outlet (7) to form a negative pressure area above the housing (1), thereby enhancing the efficiency of oil smoke inhalation.

5. The no-clean kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The cross-sectional area of ​​one end of the air volume outlet (6) is larger than the cross-sectional area of ​​one end of the control end (9).

6. The no-clean kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The air volume expander (3) is horn-shaped as a whole, and the specific shape is determined by the boundary layer and diffusion angle of the fluid diffusing in infinite space.

7. The non-cleaning kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The internal diffusion angle of the air volume expander (3) and the cross-sectional area of ​​the horn position are optimized by means of a fluid motion balance equation.

8. The non-cleaning kitchen integrated stove with a brushless motor air volume expander according to claim 1, characterized in that: The fluid motion equilibrium equation optimization comprises the following steps: a. The cross-sectional areas of the air volume inlet (5), the control end (9) and the air volume outlet (6) are S 2， S 1， S3, the corresponding wind speed is U2, U1, U3 corresponding wind volume is Q2, Q1, Q3; b. Establish a formula for calculating air volume, where air volume is calculated by multiplying the cross-sectional area and wind speed: Q=S×U So the calculation process is as follows: Q2=S2×U2, Q1=S1×U1, Q3=S3×U3 It is assumed that the cross-sectional area of ​​the output end S3 of the air volume expander is larger than that of the control end S1, satisfying S 3＞ S1; Thus, according to the fluid balance equation, and substituting the air volume formula into it, we get: K=S3×U1 / S1×U3≈S3 / S1×0.5 Among them, by adjusting the geometric parameters S3 and S1, and the control end wind speed U1, the expansion amount K is optimized to meet the smoke exhaust requirements.

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