A control method for a kitchen air conditioner and range hood

Abstract

The present invention discloses a control method for a kitchen air conditioner and range hood. The kitchen air conditioner and range hood includes a cabinet assembly, an oil fume collection module, a refrigeration module, an oxygen sensor and a controller. The controller is electrically connected to the oil fume collection module, the refrigeration module and the oxygen sensor respectively. The control method comprises the following steps: S0, starting the kitchen air conditioner and range hood; S1, obtaining a preset oxygen concentration change rate and a preset fan power of the oil fume collection module; S2, detecting the real-time oxygen concentration in the cabinet assembly through the oxygen sensor, calculating the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration, and controlling the fan of the oil fume collection module to operate at the preset fan power; S3, judging whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate; S4, controlling the operation of the kitchen air conditioner and range hood according to the judgment result; which can, to a certain extent, extend the service life of the kitchen air conditioner and range hood and improve the product performance.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a control method for a kitchen air conditioner and range hood. Background Art

[0002] With the continuous improvement of living standards, people's requirements for the environmental comfort of the kitchen are also increasing. During the cooking process, not only a large amount of oil fume is generated, especially when using the cooking stove in summer, a large amount of heat radiation makes users more uncomfortable, resulting in a poor experience for users during the cooking process. Therefore, with the continuous improvement of living standards, people's requirements for the environmental comfort of the kitchen are also increasing. Users install a kitchen air conditioner and range hood in the kitchen to reduce the temperature of the cooking area or the kitchen space, so as to improve the cooking experience.

[0003] However, the kitchen space in urban residences in China is relatively small. The traditional Chinese cooking takes a long time and uses a large amount of oil. The fresh air in the kitchen is insufficient, which easily causes a high concentration of kitchen oil fume and a long retention time, seriously affecting the service life and product performance of the kitchen air conditioner and range hood. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the present invention provides a control method for a kitchen air conditioner and range hood, which can extend the service life of the kitchen air conditioner and range hood to a certain extent and improve the product performance.

[0005] The above object is achieved by the following technical solutions:

[0006] A control method for a kitchen air conditioner and range hood, the kitchen air conditioner and range hood includes a box body assembly, an oil fume collection module, a refrigeration module, an oxygen sensor and a controller. The oil fume collection module, the refrigeration module and the oxygen sensor are arranged in the box body assembly, and the refrigeration module is located above the oil fume collection module. The controller is electrically connected to the oil fume collection module, the refrigeration module and the oxygen sensor respectively. The control method includes the following steps:

[0007] S0, start the kitchen air conditioner and range hood;

[0008] S1, obtain a preset oxygen concentration change rate and a preset fan power of the oil fume collection module;

[0009] S2, detect the real-time oxygen concentration in the box body assembly through the oxygen sensor, calculate the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration, and control the fan of the oil fume collection module to operate at the preset fan power;

[0010] S3, determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate;

[0011] S4, control the operation of the kitchen air conditioner and range hood according to the judgment result.

[0012] In some embodiments, step S4 includes:

[0013] S41, if the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate, determine whether the current fan power of the oil fume collection module is the maximum fan power, and control the operation of the kitchen air conditioner range hood according to the determination result;

[0014] S42, if the real-time oxygen concentration change rate is less than the preset oxygen concentration change rate, control the oil fume collection module to continue operating at the current fan power.

[0015] In some embodiments, after step S42, it includes:

[0016] S43, save the current preset oxygen concentration change rate and the current fan power of the oil fume collection module to be obtained during the next operation of the kitchen air conditioner range hood.

[0017] In some embodiments, step S41 includes:

[0018] S411, determine whether the current fan power of the oil fume collection module is the maximum fan power. If not, enter step S412; if so, enter step S413;

[0019] S412, increase the fan power of the oil fume collection module;

[0020] S413, detect the real-time oxygen concentration in the box assembly through an oxygen sensor, calculate the real-time oxygen concentration change rate based on the obtained real-time oxygen concentration, and then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate. If so, control the kitchen air conditioner range hood to stop working; if not, enter step S42.

[0021] In some embodiments, step S412 includes:

[0022] Detect the real-time oxygen concentration in the box assembly through an oxygen sensor, calculate the real-time oxygen concentration change rate based on the obtained real-time oxygen concentration, and then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate. If so, return to step S411; if not, enter step S42.

[0023] In some embodiments, step S2 includes: detecting the real-time oxygen concentration in the box assembly through an oxygen sensor at a fixed period, and calculating the real-time oxygen concentration change rate based on the obtained real-time oxygen concentration.

[0024] In some embodiments, a plurality of oxygen sensors are included. The real-time oxygen concentration inside the box assembly is detected by the plurality of oxygen sensors, the average oxygen concentration is calculated based on the acquired real-time oxygen concentration, and the change rate of the real-time oxygen concentration is calculated based on the average oxygen concentration.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] 1. The present invention provides a control method for a kitchen air conditioner and range hood, which can, to a certain extent, extend the service life of the kitchen air conditioner and range hood and improve product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective schematic view of the kitchen air conditioner and range hood in the embodiment;

[0028] Figure 2 is a circuit block diagram of the kitchen air conditioner and range hood in the embodiment;

[0029] Figure 3 is a flowchart of the control method in the embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following embodiments are used to illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific implementation manners of the present invention or equivalently replacing some technical features without departing from the spirit of the present invention's solution shall all be covered within the scope of the technical solution claimed by the present invention.

[0031] Embodiment 1: As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a control method for a kitchen air conditioner and range hood. The kitchen air conditioner and range hood includes a box assembly 1, an oil fume collection module 2, a refrigeration module 3, an oxygen sensor 4, and a controller. Among them, the oil fume collection module 2, the refrigeration module 3, and the oxygen sensor 4 are arranged inside the box assembly 1, and the refrigeration module 3 is located above the oil fume collection module 2. The controller is electrically connected to the oil fume collection module 2, the refrigeration module 3, and the oxygen sensor 4 respectively. The control method includes the following steps:

[0032] S0, start the kitchen air conditioner and range hood;

[0033] S1, obtain a preset oxygen concentration change rate and a preset fan power of the oil fume collection module 2; specifically, after the kitchen air conditioner and range hood is powered on, the controller reads the preset oxygen concentration change rate. Among them, when the kitchen air conditioner and range hood is powered on for the first time, the controller can read the preset fan power of the kitchen air conditioner and range hood and the oil fume collection module 2. The preset oxygen concentration change rate is determined according to the fan power of the oil fume collection module 2 of different kitchen air conditioners and range hoods, and the preset fan power of the oil fume collection module 2 is the working value of the previous working cycle;

[0034] S2. Detect the real-time oxygen concentration inside the cabinet assembly 1 through the oxygen sensor 4, calculate the change rate of the real-time oxygen concentration based on the obtained real-time oxygen concentration, and control the fan of the oil fume collection module 2 to operate at a preset fan power.

[0035] For example, detect the real-time oxygen concentration inside the cabinet assembly 1 at a fixed period through the oxygen sensor 4, and calculate the change rate of the real-time oxygen concentration based on the obtained real-time oxygen concentration. Specifically, detect the oxygen concentration inside the cabinet assembly 1 once every 30 seconds, for example, at each fixed period, and calculate the rate of decrease of the oxygen concentration.

[0036] Specifically, in order to accurately detect the oxygen concentration, multiple oxygen sensors 4 can be set inside the cabinet assembly 1. Detect the oxygen concentration at multiple points in the inner cavity of the kitchen air conditioner range hood, calculate the average oxygen concentration value based on the oxygen concentration at multiple points, and then use the average oxygen concentration value at different points as the reference value of the oxygen concentration, and calculate the change rate of the oxygen concentration. That is, detect the real-time oxygen concentration inside the cabinet assembly 1 through multiple oxygen sensors 4, calculate the average oxygen concentration based on the obtained real-time oxygen concentration, and calculate the change rate of the real-time oxygen concentration based on the average oxygen concentration.

[0037] S3. Judge whether the change rate of the real-time oxygen concentration is greater than or equal to the preset change rate of the oxygen concentration.

[0038] Specifically, compare the change rate of the real-time oxygen concentration with the preset change rate of the oxygen concentration to judge whether the oil fume concentration in the current environment of the kitchen air conditioner range hood is too high and whether it can meet the working conditions of the kitchen air conditioner range hood.

[0039] S4. Control the operation of the kitchen air conditioner range hood according to the judgment result.

[0040] The control method of the kitchen air conditioner range hood in this embodiment is used to perform abnormal detection and control on the environment where the kitchen air conditioner range hood is used, especially in an environment with a high oil fume concentration, to prevent the kitchen air conditioner range hood from working under abnormal conditions, affecting its service life and product performance or posing a safety hazard. It can, to a certain extent, extend the service life of the kitchen air conditioner range hood and improve product performance.

[0041] Embodiment 2: As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a control method for a kitchen air conditioner range hood, which is different from the control method for a kitchen air conditioner range hood provided in Embodiment 1 in that step S4 includes:

[0042] S41. If the change rate of the real-time oxygen concentration is greater than or equal to the preset change rate of the oxygen concentration, judge whether the current fan power of the oil fume collection module 2 is the maximum fan power, and control the operation of the kitchen air conditioner range hood according to the judgment result.

[0043] When judging whether the current fan power of the oil fume collection module 2 is the maximum fan power, whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate. If so, it is judged that the oil fume concentration in the environment where the kitchen air conditioner range hood is located is too high and cannot meet the working conditions of the kitchen air conditioner range hood; if not, it is judged that the oil fume concentration in the environment where the kitchen air conditioner range hood is located is not high and can meet the working conditions of the kitchen air conditioner range hood. For example, when comparing the real-time oxygen concentration change rate with the preset oxygen concentration change rate, if the current fan power of the oil fume collection module 2 has not reached the maximum fan power, after increasing the fan power of the oil fume collection module 2, continue to detect whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate until the fan power of the oil fume collection module 2 reaches the maximum fan power, and then it is detected that the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate, which is regarded as the oil fume concentration in the environment where the kitchen air conditioner range hood is located is too high and cannot meet the working conditions of the kitchen air conditioner range hood. More detailed steps will be described one by one below;

[0044] S42, if the real-time oxygen concentration change rate is less than the preset oxygen concentration change rate, then control the oil fume collection module 2 to continue running at the current fan power.

[0045] Through the above steps, the service life of the kitchen air conditioner range hood can be further extended and the product performance can be improved.

[0046] Embodiment 3: As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a control method for a kitchen air conditioner range hood, which is different from the control method for a kitchen air conditioner range hood provided in Embodiment 2 in that after step S42, it includes:

[0047] S43, save the current preset oxygen concentration change rate and the current fan power of the oil fume collection module 2 to be obtained during the next operation of the kitchen air conditioner range hood; specifically, if the real-time oxygen concentration change rate in the environment where the kitchen air conditioner range hood is located is less than the preset oxygen concentration change rate, then still use the current preset oxygen concentration change rate as the preset oxygen concentration change rate, and work according to the current fan power of the oil fume collection module 2, and save the updated preset oxygen concentration change rate and the current fan power of the oil fume collection module 2 to be obtained during the next judgment cycle. That is to say, by using the current fan power of the oil fume collection module 2, most of the oil fume can be sucked away by the oil fume collection module 2, and only a small amount of oil fume remains in the inner cavity of the kitchen air conditioner range hood, realizing the continuous and stable operation of the kitchen air conditioner.

[0048] Embodiment 4: As Figure 1 、 Figure 2 and Figure 3As shown, this embodiment provides a control method for a kitchen air conditioner and range hood, which is different from the control method for a kitchen air conditioner and range hood provided in Embodiment 3. Specifically, step S41 includes:

[0049] S411, determine whether the current fan power of the oil fume collection module 2 is the maximum fan power. If not, proceed to step S412; if so, proceed to step S413;

[0050] S412, increase the fan power of the oil fume collection module 2;

[0051] S413, detect the real-time oxygen concentration in the cabinet assembly 1 through the oxygen sensor 4, calculate the real-time oxygen concentration change rate based on the obtained real-time oxygen concentration, and then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate. If so, control the kitchen air conditioner and range hood to stop working; if not, proceed to step S42.

[0052] Through the above steps, the service life of the kitchen air conditioner and range hood can be further extended, and the product performance can be improved.

[0053] Embodiment 5: As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a control method for a kitchen air conditioner and range hood, which is different from the control method for a kitchen air conditioner and range hood provided in Embodiment 4. Specifically, step S412 includes:

[0054] Detect the real-time oxygen concentration in the cabinet assembly 1 through the oxygen sensor 4, calculate the real-time oxygen concentration change rate based on the obtained real-time oxygen concentration, and then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate. If so, return to step S411; if not, proceed to step S42.

[0055] Specifically, when the real-time oxygen concentration change rate in the environment where the kitchen air conditioner and range hood is located is greater than or equal to the preset oxygen concentration change rate, control the controller of the kitchen air conditioner and range hood to cut off the power supply and control the kitchen air conditioner and range hood to give an alarm prompt. For example, give an alarm prompt that the environmental conditions of the kitchen air conditioner and range hood do not meet the working requirements. That is to say, most of the gas in the inner cavity of the kitchen air conditioner and range hood is cooking oil fume that the range hood fails to discharge in time, and a large amount of oil fume remains in the inner cavity, seriously affecting the operation of the refrigeration module of the kitchen air conditioner. At this time, by controlling the kitchen air conditioner and range hood to stop working, it can be avoided that the kitchen air conditioner and range hood work under abnormal conditions, affecting the service life and product performance or posing a safety hazard, thus extending the service life of the kitchen air conditioner and range hood to a certain extent and improving the product performance.

[0056] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A control method for a kitchen air conditioner and range hood, the kitchen air conditioner and range hood comprising a box body assembly (1), an oil fume collection module (2), a refrigeration module (3), an oxygen sensor (4) and a controller, wherein the oil fume collection module (2), the refrigeration module (3) and the oxygen sensor (4) are arranged inside the box body assembly (1), and the refrigeration module (3) is located above the oil fume collection module (2), and the controller is electrically connected to the oil fume collection module (2), the refrigeration module (3) and the oxygen sensor (4) respectively, characterized in that, The control method includes the following steps: S0, start the kitchen air conditioner and range hood; S1, obtain the preset oxygen concentration change rate and the preset fan power of the oil fume collection module (2); S2, detect the real-time oxygen concentration in the box assembly (1) through the oxygen sensor (4), calculate the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration, and control the fan of the oil fume collection module (2) to operate at the preset fan power; S3, determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate; S41, if the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate, then determine whether the current fan power of the oil fume collection module (2) is the maximum fan power, and control the kitchen air conditioner and range hood to work according to the judgment result; S42, if the real-time oxygen concentration change rate is less than the preset oxygen concentration change rate, then control the oil fume collection module (2) to continue operating at the current fan power; Among them, the step S41 includes: S411, determine whether the current fan power of the oil fume collection module (2) is the maximum fan power, if not, enter step S412, if so, enter step S413; S412, increase the fan power of the oil fume collection module (2); S413, detect the real-time oxygen concentration in the box assembly (1) through the oxygen sensor (4), calculate the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration, then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate, if so, control the kitchen air conditioner and range hood to stop working, if not, enter step S42.

2. The control method of a kitchen air conditioner and range hood according to claim 1, wherein, After step S42 includes: S43, save the current preset oxygen concentration change rate and the current fan power of the oil fume collection module (2) to be obtained during the next operation of the kitchen air conditioner and range hood.

3. The control method of a kitchen air conditioner and range hood according to claim 1, characterized in that Step S412 includes: Detect the real-time oxygen concentration in the box assembly (1) through the oxygen sensor (4), calculate the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration, then determine whether the real-time oxygen concentration change rate is greater than or equal to the preset oxygen concentration change rate, if so, return to step S411, if not, enter step S42.

4. A control method for a kitchen air conditioner and range hood according to any one of claims 1 to 3, characterized in that, Step S2 includes: detecting the real-time oxygen concentration in the box assembly (1) through the oxygen sensor (4) at a fixed period, and calculating the real-time oxygen concentration change rate according to the obtained real-time oxygen concentration.

5. A control method for a kitchen air conditioner and range hood according to any one of claims 1 to 3, characterized in that, There are multiple oxygen sensors (4), and the real-time oxygen concentration in the box assembly (1) is detected through the multiple oxygen sensors (4), the average oxygen concentration is calculated according to the obtained real-time oxygen concentration, and the real-time oxygen concentration change rate is calculated according to the average oxygen concentration.

Images