CN-121993820-A - Control method and device for range hood and range hood

CN121993820ACN 121993820 ACN121993820 ACN 121993820ACN-121993820-A

Abstract

The invention discloses a control method and device of a range hood and the range hood. The control method of the range hood comprises the steps of sequentially obtaining a first current oil smoke concentration value and a second current oil smoke concentration value of a current cooking bench when the current cooking bench corresponding to the guide plate assembly works, determining a current oil smoke concentration difference value according to the first current oil smoke concentration value and the second current oil smoke concentration value, determining whether to adjust the opening and closing angle of the guide plate assembly according to the current oil smoke concentration difference value, determining the motor adjusting power of the push rod motor according to the second current oil smoke concentration value and the current oil smoke concentration difference value after the opening and closing angle of the guide plate assembly is determined, obtaining a current flow velocity value of the guide plate assembly, and controlling the push rod motor to adjust the opening and closing angle of the guide plate assembly to a target opening and closing angle based on the motor adjusting power after the opening and closing angle of the guide plate assembly is adjusted according to the current flow velocity value. The invention realizes the improvement of the smoke suction effect of the range hood.

Inventors

LI YUANCHAO
ZHENG TONGFU
PENG XIAOLEI
REN FUJIA
LV CHUNMING

Assignees

杭州老板电器股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241105

Claims (12)

1. The control method of the range hood is characterized in that the range hood comprises a guide plate assembly with an adjustable opening and closing angle and a push rod motor for controlling the opening and closing angle of the guide plate assembly, and the control method of the range hood comprises the following steps: When a current cooking bench corresponding to the guide plate assembly works, sequentially acquiring a first current oil smoke concentration value and a second current oil smoke concentration value of the current cooking bench, and determining a current oil smoke concentration difference value according to the first current oil smoke concentration value and the second current oil smoke concentration value; Determining whether to adjust the opening and closing angle of the guide plate assembly according to the current oil smoke concentration difference value, and determining the motor adjusting power of the push rod motor according to the second current oil smoke concentration value and the current oil smoke concentration difference value after determining to adjust the opening and closing angle of the guide plate assembly; and acquiring a current flow velocity value of the flow guide plate assembly, and controlling the push rod motor to adjust the opening and closing angle of the flow guide plate assembly to a target opening and closing angle based on the motor adjusting power after adjusting the opening and closing angle of the flow guide plate assembly according to the current flow velocity value.
2. The control method of a range hood according to claim 1, wherein determining whether to adjust the opening and closing angle of the baffle assembly according to the current oil smoke concentration difference value comprises: If the current oil smoke concentration difference value is equal to 0, determining that the opening and closing angle of the guide plate assembly is not adjusted; and if the current oil smoke concentration difference value is not equal to 0, determining to adjust the opening and closing angle of the guide plate assembly.
3. The range hood control method of claim 1, wherein determining the motor adjustment power of the push rod motor based on the second current oil smoke concentration value and the current oil smoke concentration difference value comprises: the motor adjustment power of the push rod motor is determined based on the following formula, and the motor adjustment power is specifically: Wherein DeltaP is the power of the motor, c 2 is the second current oil smoke concentration value, deltac is the current oil smoke concentration difference value, and x i is the first independent variable coefficient.
4. A range hood control method according to any one of claims 1 to 3, further comprising, before adjusting the opening and closing angle of the baffle assembly according to the current flow rate value: When the current oil smoke concentration difference value is larger than 0, determining an opening and closing angle adjustment value according to the second current oil smoke concentration value and the current oil smoke concentration difference value, and increasing the motor power of the push rod motor by the motor adjustment power to serve as the current motor power of the push rod motor; Controlling the push rod motor to adjust the opening and closing angle of the guide plate assembly to a first opening and closing angle based on the current motor power, wherein the first opening and closing angle is obtained by reducing the opening and closing angle adjusting value of the guide plate assembly; adjusting the opening and closing angle of the deflector assembly according to the current flow velocity value, including: If the current flow velocity value is smaller than or equal to a flow velocity threshold value, continuing to keep the opening and closing angle of the guide plate assembly unchanged as the first opening and closing angle; And if the current flow velocity value is larger than the flow velocity threshold value, adjusting the opening and closing angle of the guide plate assembly to a second opening and closing angle, wherein the second opening and closing angle is obtained by reducing the opening and closing angle adjusting value by the first opening and closing angle.
5. The control method of a range hood according to claim 4, further comprising, after adjusting the opening and closing angle of the baffle assembly to the second opening and closing angle: And acquiring a first flow rate value of the current cooking bench in real time, and controlling the deflector assembly to stop moving when the first flow rate value is smaller than or equal to the flow rate threshold value.
6. A range hood control method according to any one of claims 1 to 3, further comprising, before adjusting the opening and closing angle of the baffle assembly according to the current flow rate value: When the current oil smoke concentration difference value is smaller than 0, determining an opening and closing angle adjustment value according to the second current oil smoke concentration value and the current oil smoke concentration difference value, and reducing the motor power of the push rod motor by the motor adjustment power to serve as the current motor power of the push rod motor; adjusting the opening and closing angle of the deflector assembly according to the current flow velocity value, including: If the current flow velocity value is smaller than the flow velocity threshold value, controlling the push rod motor to adjust the opening and closing angle of the guide plate assembly to a third opening and closing angle based on the current motor power, wherein the third opening and closing angle is obtained by increasing the opening and closing angle of the guide plate assembly by the opening and closing angle adjustment value; If the current flow velocity value is equal to the flow velocity threshold value, continuing to keep the opening and closing angle of the deflector assembly unchanged; If the current flow velocity value is larger than the flow velocity threshold value, controlling the push rod motor to adjust the opening and closing angle of the guide plate assembly to a fourth opening and closing angle based on the current motor power, wherein the fourth opening and closing angle is obtained by reducing the opening and closing angle of the guide plate assembly by the opening and closing angle adjusting value.
7. The control method of a range hood according to claim 6, further comprising, after controlling the push rod motor to adjust the opening and closing angle of the baffle assembly to a third opening and closing angle or a fourth opening and closing angle based on the current motor power: and acquiring a second flow rate value of the current cooking bench in real time, and controlling the deflector assembly to stop moving when the second flow rate value is equal to the flow rate threshold value.
8. The range hood control method according to any one of claims 4 to 7, wherein determining an opening and closing angle adjustment value from the second current oil smoke concentration value and the current oil smoke concentration difference value includes: the opening and closing angle adjustment value is determined based on the following formula, specifically: Wherein DeltaW is the opening and closing angle adjustment value, c 2 is the second current oil smoke concentration value, deltac is the current oil smoke concentration difference value, and y i is a second independent variable coefficient.
9. The control method of a range hood according to claim 1, wherein the current cooking top is a first cooking top or a second cooking top; The control method of the range hood further comprises the following steps: When the first cooking bench and the second cooking bench work simultaneously, a first initial oil smoke concentration value of the first cooking bench and a second initial oil smoke concentration value of the second cooking bench are obtained; if the ratio of the first initial oil smoke concentration value to the second initial oil smoke concentration value is larger than a first oil smoke concentration threshold value, determining to adjust the opening and closing angle of the deflector assembly corresponding to the first cooking bench; and if the ratio of the first initial oil smoke concentration value to the second initial oil smoke concentration value is smaller than a second oil smoke concentration threshold value, determining to adjust the opening and closing angle of the deflector assembly corresponding to the second cooking bench.
10. The control method of a range hood according to claim 1, wherein the deflector assembly comprises a deflector plate comprising a first plate group and a second plate group disposed opposite to each other in a first direction, the first plate group and the second plate group partially overlapping and slidably abutting in the first direction, the first plate group comprising a first plate and a second plate disposed opposite to each other in a second direction and having a first angle adjustable to form the first plate group, the second plate group comprising a third plate and a fourth plate disposed opposite to each other in the second direction and having a second angle adjustable to form the second plate group; The control method of the range hood further comprises the following steps: And controlling the first included angle and the second included angle to be larger than or equal to a set angle threshold.
11. The utility model provides a range hood controlling means, its characterized in that, range hood includes the guide plate subassembly that the angle of opening and shutting is adjustable and control the push rod motor of guide plate subassembly angle of opening and shutting, range hood controlling means includes: The oil smoke concentration difference value determining module is used for sequentially obtaining a first current oil smoke concentration value and a second current oil smoke concentration value of the current cooking bench when the current cooking bench corresponding to the guide plate assembly works, and determining a current oil smoke concentration difference value according to the first current oil smoke concentration value and the second current oil smoke concentration value; The flow velocity value determining module is used for determining whether to adjust the opening and closing angle of the guide plate assembly according to the current oil smoke concentration difference value, and determining the motor adjusting power of the push rod motor according to the second current oil smoke concentration value and the current oil smoke concentration difference value after determining to adjust the opening and closing angle of the guide plate assembly; And the range hood control module is used for executing and acquiring the current flow velocity value of the flow guide plate assembly, and controlling the push rod motor to adjust the opening and closing angle of the flow guide plate assembly to the target opening and closing angle based on the motor adjusting power after adjusting the opening and closing angle of the flow guide plate assembly according to the current flow velocity value.
12. A range hood, characterized in that the range hood comprises a guide plate assembly with an adjustable opening and closing angle, a push rod motor for controlling the opening and closing angle of the guide plate assembly, and a range hood control device according to claim 11; The flow guide plate assembly comprises a flow guide plate, the flow guide plate comprises a first plate group and a second plate group which are oppositely arranged in a first direction, the first plate group and the second plate group are partially overlapped and slidably abutted in the first direction, the first plate group comprises a first plate and a second plate, the first plate and the second plate are oppositely arranged in a second direction, a first included angle is adjustable, so that the first plate group is formed, the second plate group comprises a third plate and a fourth plate, the third plate and the fourth plate are oppositely arranged in the second direction, and a second included angle is adjustable, so that the second plate group is formed.

Description

Control method and device for range hood and range hood Technical Field The invention relates to the technical field of kitchen appliances, in particular to a control method and device of a range hood and the range hood. Background The kitchen appliance is installed above kitchen range, and can quickly suck the waste burnt by range and the fume harmful to human body produced in cooking process, and can discharge the fume out of the room, at the same time can make the fume be condensed and collected, reduce pollution and clean air, and has the functions of gas protection and explosion protection. The V-shaped guide plate is generally arranged in the air inlet area of the main machine of the range hood, and can improve the impact of air flow on the air duct volute, reduce energy loss and be beneficial to the improvement of the air performance of the range hood. However, because the sizes of the main machine shells of the range hoods are different in different range hood models, V-shaped guide plates with different lengths are correspondingly required to be installed, and the opening and closing angles of the existing V-shaped guide plates cannot be adjusted, so that the main machine shells of the range hoods cannot be completely suitable for all range hood conditions. Disclosure of Invention The invention provides a control method and device of a range hood and the range hood, and aims to solve the problem that the existing range hood cannot be suitable for different lampblack concentration conditions, and further performance waste is caused. According to an aspect of the present invention, there is provided a range hood control method including a baffle assembly having an adjustable opening and closing angle and a push rod motor controlling the opening and closing angle of the baffle assembly, the range hood control method including: When a current cooking bench corresponding to the guide plate assembly works, sequentially acquiring a first current oil smoke concentration value and a second current oil smoke concentration value of the current cooking bench, and determining a current oil smoke concentration difference value according to the first current oil smoke concentration value and the second current oil smoke concentration value; Determining whether to adjust the opening and closing angle of the guide plate assembly according to the current oil smoke concentration difference value, and determining the motor adjusting power of the push rod motor according to the second current oil smoke concentration value and the current oil smoke concentration difference value after determining to adjust the opening and closing angle of the guide plate assembly; and acquiring a current flow velocity value of the flow guide plate assembly, and controlling the push rod motor to adjust the opening and closing angle of the flow guide plate assembly to a target opening and closing angle based on the motor adjusting power after adjusting the opening and closing angle of the flow guide plate assembly according to the current flow velocity value. Optionally, determining whether to adjust the opening and closing angle of the deflector assembly according to the current oil smoke concentration difference value includes: If the current oil smoke concentration difference value is equal to 0, determining that the opening and closing angle of the guide plate assembly is not adjusted; and if the current oil smoke concentration difference value is not equal to 0, determining to adjust the opening and closing angle of the guide plate assembly. Optionally, determining the motor adjustment power of the push rod motor according to the second current oil smoke concentration value and the current oil smoke concentration difference value includes: the motor adjustment power of the push rod motor is determined based on the following formula, and the motor adjustment power is specifically: Wherein DeltaP is the power of the motor, c 2 is the second current oil smoke concentration value, deltac is the current oil smoke concentration difference value, and x i is the first independent variable coefficient. Optionally, before adjusting the opening and closing angle of the deflector assembly according to the current flow velocity value, the method further includes: When the current oil smoke concentration difference value is larger than 0, determining an opening and closing angle adjustment value according to the second current oil smoke concentration value and the current oil smoke concentration difference value, and increasing the motor power of the push rod motor by the motor adjustment power to serve as the current motor power of the push rod motor; Controlling the push rod motor to adjust the opening and closing angle of the guide plate assembly to a first opening and closing angle based on the current motor power, wherein the first opening and closing angle is obtained by reducing the opening and closing angle adjusting value of the guide pla