A control method and device for fresh air air conditioner and fresh air air conditioner

Abstract

This invention discloses a control method, device, and fresh air conditioner for a fresh air system. The fresh air conditioner includes an indoor unit with a casing and a fresh air inlet on the casing; a fresh air baffle rotatably mounted at the fresh air inlet; and a sleep mode with multiple sleep stages. When the fresh air function is activated in sleep mode, the control method includes: controlling the fresh air baffle to operate to the initial angle of the corresponding stage at different sleep stages; monitoring indoor air quality; and adjusting the opening angle of the fresh air baffle according to the indoor air quality to adjust the fresh air volume. This invention adjusts the inlet area by adjusting the opening angle of the fresh air baffle, thereby regulating the fresh air volume. A smaller inlet area results in lower air volume and noise, which improves the comfort of using the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air air conditioners, and in particular to a control method and device for a fresh air air conditioner and a fresh air air conditioner. Background Art

[0002] At present, with the popularity of household fresh air air conditioners, there will be functional conflicts when the fresh air function is used at the same time as other functions of the air conditioner. For example, when the fresh air is turned on in the sleep mode, the user's rest will be affected by the fresh air noise, causing discomfort to the user. How to avoid or make the functions mutually exclusive when used at the same time to avoid uncomfortable conditions for users due to overlapping functions during use. Summary of the invention

[0003] In view of this, the present invention discloses a control method and device of a fresh air air conditioner and a fresh air air conditioner, so as to solve the problem that the fresh air air conditioner causes discomfort to users due to overlapping functions during use.

[0004] In order to achieve the above-mentioned object, the present invention adopts the following technical solution:

[0005] The first aspect of the present invention discloses a control method for a fresh air air conditioner, the fresh air air conditioner comprises a fresh air fan, the fresh air fan is provided with a shell, and the shell is provided with a fresh air inlet; a fresh air baffle is rotatably provided at the fresh air inlet, the fresh air air conditioner is provided with a sleep mode, the sleep mode is divided into multiple sleep stages, when the fresh air function is turned on in the sleep mode, the method comprises:

[0006] In different sleep stages, the fresh air damper is controlled to run to the initial angle of the corresponding stage;

[0007] Monitor indoor air quality;

[0008] Adjust the opening angle of the fresh air damper according to the indoor air quality to adjust the fresh air volume.

[0009] Optionally, monitor indoor air quality conditions, including:

[0010] Obtaining a first monitored value of indoor air quality and comparing it with different set values;

[0011] The air quality is determined based on the comparison results.

[0012] Further optionally, the sleep stages include early sleep, middle sleep and late sleep, and the initial angles corresponding to the early sleep, middle sleep and late sleep are the first angle α, the second angle β and the third angle γ, respectively, where α>β>γ.

[0013] Further optionally, at the beginning of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, including:

[0014] When the first monitoring value is greater than the first set value, the fresh air damper is controlled to maintain the first angle unchanged until entering the middle sleep period;

[0015] When the first monitoring value is less than or equal to the first set value, the fresh air damper is controlled to run to a fourth angle δ and then remain unchanged until entering the middle sleep period, wherein β≤δ<α.

[0016] Further optionally, in the middle of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, including:

[0017] When the first monitoring value is greater than the first set value, the fresh air damper is controlled to move to a fifth angle ε, where β<ε≤α;

[0018] Obtaining a second monitoring value of the indoor air quality, and comparing it with a second set value;

[0019] When the second monitoring value is less than or equal to the second set value, the fresh air damper is controlled to move to the second angle and then remain unchanged until entering the late sleep stage;

[0020] Where Q 初 <Q 设 , Q 初 Indicates the second set value, Q 设 Indicates the first setting value.

[0021] Further optionally, in the middle of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, which also includes:

[0022] When the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the second angle unchanged until entering the late sleep stage.

[0023] Further optionally, in the later stage of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, including:

[0024] Obtaining a first monitoring value of indoor air quality, and comparing it with a first set value;

[0025] When the first monitoring value is greater than the first set value, the fresh air damper is controlled to move to a sixth angle ζ, where γ<ζ≤β;

[0026] Obtaining a third monitoring value of the indoor air quality, and comparing it with a third set value;

[0027] When the third monitoring value is less than or equal to the third set value, the fresh air damper is controlled to move to the third angle and then remain unchanged until the end of the late sleep period;

[0028] Where Q初 <Q 中 <Q 设 , Q 中 Indicates the third setting value.

[0029] Further optionally, in the late stage of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, which also includes:

[0030] When the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the third angle unchanged until the late sleep period ends.

[0031] Further optionally, in the sleep mode, the method further includes:

[0032] The speed of the indoor fan of the fresh air air conditioner is controlled to be the minimum speed at which it can operate, and the speed of the fresh air fan of the fresh air air conditioner is controlled to be the minimum speed at which it can operate.

[0033] The second aspect of the present invention discloses a control device for a fresh air air conditioner, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the method according to any one of the first aspects.

[0034] The third aspect of the present invention discloses a fresh air conditioner, which adopts any method of the first aspect, or includes the control device of the second aspect.

[0035] Beneficial effect: In sleep mode, the air inlet area is adjusted by adjusting the opening angle of the fresh air baffle to adjust the fresh air volume. At this time, the air inlet area is small, and the air volume and noise will be relatively low. Low noise will improve the comfort of using the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other objects, features and advantages of the present invention will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0037] Figure 1 A flow chart of a method for controlling a fresh air air conditioner according to an embodiment of the present invention is exemplarily shown.

[0038] Figure 2 A flow chart of a method for controlling a fresh air air conditioner according to an embodiment of the present invention is exemplarily shown.

[0039] Figure 3The schematic diagram of the opening angle of the lower fresh air baffle in the early stage of sleep according to an embodiment of the present invention is exemplarily shown.

[0040] Figure 4 A schematic diagram of the opening angle of the lower fresh air baffle in the middle of sleep according to an embodiment of the present invention is exemplarily shown.

[0041] Figure 5 A schematic diagram of the opening angle of the lower fresh air baffle in the late sleep stage according to an embodiment of the present invention is exemplarily shown. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0043] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0044] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0046] In order to solve the problem that the fresh air air conditioner causes discomfort to the user due to overlapping functions during use, the first embodiment of the present invention provides a control method for the fresh air air conditioner, the fresh air air conditioner includes an outdoor unit, an indoor unit and a fresh air fan, the fresh air fan is integrated in the indoor unit, or is arranged outside the indoor unit. Figure 3-Figure 5 The fresh air fan is provided with a shell, and a fresh air inlet is provided on the shell; a fresh air baffle is rotatably provided at the fresh air inlet, and the fresh air air conditioner is provided with a sleep mode, and the sleep mode is divided into multiple sleep stages. Figure 1 When the fresh air function is turned on in the sleep mode, the method includes S1 to S3, wherein:

[0047] S1, in different sleep stages, controls the fresh air damper to move to the initial angle of the corresponding stage;

[0048] S2, monitor indoor air quality;

[0049] S3, adjust the opening angle of the fresh air damper according to the indoor air quality to adjust the fresh air volume.

[0050] In this embodiment, a sensor for real-time monitoring of indoor air quality is preferably provided on the indoor unit of the fresh air air conditioner. In sleep mode, if fresh air is turned on, the indoor air quality is monitored in real time through the sensor on the indoor unit. If the indoor air quality does not meet the current user requirements, the air inlet area is adjusted by adjusting the opening angle of the fresh air baffle (the basic calculation method of air volume is the product of wind speed and air inlet cross-sectional area: Q=V×S, Q represents air volume, V represents wind speed, and S represents air inlet cross-sectional area) to adjust the fresh air volume. At this time, the air inlet area is small, and the air volume and noise will be relatively low. Low noise will improve the comfort of using the air conditioner.

[0051] Further optionally, in the sleep mode, the method also includes S4: S4, controlling the rotation speed of the indoor fan to be the minimum operating speed thereof, and controlling the rotation speed of the fresh air fan to be the minimum operating speed thereof.

[0052] Specifically, in sleep mode, the indoor fan speed runs at the lowest speed. If the fresh air is turned on at this time, the fresh air speed is also the lowest. At this time, the fresh air volume at the lowest speed can still meet the basic needs of users during sleep. Since the fresh air fan speed is already the lowest at this time, if the fresh air fan speed is reduced, it will cause motor abnormalities (such as motor loss of step, abnormal motor noise), resulting in the fresh air fan not being able to operate normally. Therefore, by adjusting the opening angle of the fresh air damper to adjust the air inlet area and thus the fresh air volume, the air inlet area is small, and the air volume and noise are relatively low. Low noise will improve the comfort of using the air conditioner.

[0053] Further optionally, step S2 includes S21 to S22, wherein:

[0054] S21, obtaining the monitoring value of the indoor air quality and comparing it with different set values;

[0055] S22, determining the air quality according to the comparison result.

[0056] By monitoring the indoor air quality in real time and comparing the monitored values ​​of the indoor air quality with different set values, it is possible to judge a variety of indoor air quality conditions and adapt to different quality control requirements. This allows for simple control and targeted improvement of the comfort of the air conditioner's superimposed functions.

[0057] Further optionally, the multiple sleep stages include early sleep, middle sleep and late sleep, and the initial angles corresponding to the early sleep, middle sleep and late sleep are the first angle α, the second angle β and the third angle γ, respectively, where α>β>γ.

[0058] In this embodiment, the indoor air quality control requirements for the above multiple sleep stages are from high to low: early sleep, middle sleep, and late sleep. The indoor air quality thresholds for the three sleep stages are respectively Q 初 , Q 中 , Q 后 If Q 初 <Q 中 <Q 后 In order to meet the above requirements for indoor air quality control, the initial angle of the fresh air baffle is set to be the largest at the beginning of sleep, the second largest at the middle of sleep, and the smallest at the end of sleep, that is, α>β>γ, which can provide a better comfortable sleeping environment.

[0059] It should also be noted that when the user turns on the air conditioner and turns on the sleep mode at the same time, the air conditioner will synchronously determine the sleep time. The sleep duration of the three sleep stages is: T 睡眠初期 <T 睡眠中期 >T 睡眠后期 If the user exits the sleep mode midway after setting the sleep mode, the sleep mode will be executed according to the user settings.

[0060] Further optionally, at the initial stage of sleep, step S3 includes S301 to S303, wherein:

[0061] S301, obtaining a first monitoring value of indoor air quality, and comparing it with a first set value;

[0062] S302, when the first monitoring value is greater than the first set value, controlling the fresh air damper to maintain the first angle unchanged until entering the middle sleep period;

[0063] S303, when the first monitoring value is less than or equal to the first set value, the fresh air damper is controlled to run to a fourth angle δ and then remain unchanged until entering the middle sleep period, wherein β≤δ<α.

[0064] At the beginning of sleep, the initial angle of the fresh air baffle is the first angle α. Figure 3 , the fresh air damper is opened to the maximum angle of 90°. At this stage, the air quality is judged in two situations: first, combined with Figure 2, when the first monitoring value (Q1) is greater than the first set value Q 设 When the first monitoring value Q1 is less than or equal to the first setting value Q1, the indoor air quality does not meet the current user setting requirements, so the angle of the fresh air damper is kept at the current initial angle, that is, the first angle, until entering the next sleep stage. In this embodiment, the first angle α is preferably the maximum angle that the fresh air damper can be opened; second, when the first monitoring value Q1 is less than or equal to the first setting value Q 设 It means that the indoor air quality meets the current user setting requirements. At this time, the angle of the fresh air baffle is changed from the first angle α to the fourth angle δ, β≤δ<α, that is, the air inlet area is reduced while maintaining the indoor air quality. The preferred value is the second angle β, which can further reduce noise and provide a better comfortable sleeping environment.

[0065] Further optionally, in the middle of sleep, step S3 includes S311 to S314, wherein:

[0066] S311, obtaining a first monitoring value of indoor air quality, and comparing it with a first set value;

[0067] S312, when the first monitoring value is greater than the first set value, controlling the fresh air damper to move to a fifth angle ε, where β<ε≤α;

[0068] S313, obtaining a second monitoring value of the indoor air quality, and comparing it with a second set value;

[0069] S314, when the second monitoring value is less than or equal to the second set value, controlling the fresh air damper to move to the second angle and then remain unchanged until entering the late sleep stage;

[0070] Where Q 初 <Q 设 , Q 初 Indicates the second set value, Q 设 Indicates the first setting value.

[0071] In the middle of sleep, the initial angle of the fresh air baffle is the second angle β, combined with Figure 4 , the fresh air baffle is opened to the middle position of 60°. Figure 2 First, the first monitoring value Q1 of the indoor air quality is compared with the first set value. If the indoor air quality does not meet the current user setting requirements, the fresh air damper is operated to the fifth angle ε to increase the air inlet area, thereby increasing the fresh air volume to quickly improve the indoor air quality. In this stage, both the fresh air noise and the air quality are taken into account, and the ε value is set to β<ε≤α, and the preferred value of ε is α. Then, the indoor air quality is still monitored in real time, and the monitoring value here is recorded as the second monitoring value Q2, and compared with the second set value Q 初 For comparison, when Q2≤Q 初When Q2>Q 初 , it will run at the fifth angle ε until the late sleep stage. This can also avoid frequent adjustment of the fresh air baffle angle while ensuring a good sleeping environment.

[0072] Further optionally, in the middle of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, and S315 is also included:

[0073] S315, when the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the second angle unchanged until entering the late sleep stage.

[0074] Combination Figure 2 In the middle of sleep, if the first monitoring value Q1 of the indoor air quality can meet the current user setting requirements, the fresh air damper is operated at the initial angle of this stage until entering the late sleep stage. In this stage, both the fresh air noise and the air quality are taken into consideration, and it is preferred to maintain the indoor air quality at the minimum angle in this stage.

[0075] Further optionally, in the late sleep stage, step S3 includes S321 to S324, wherein:

[0076] S321, obtaining a first monitoring value of indoor air quality, and comparing it with a first set value;

[0077] S322, when the first monitoring value is greater than the first set value, controlling the fresh air damper to move to a sixth angle ζ, where γ<ζ≤β;

[0078] S323, obtaining a third monitoring value of the indoor air quality, and comparing it with a third set value;

[0079] S324, when the third monitoring value is less than or equal to the third set value, controlling the fresh air damper to move to a third angle and then remain unchanged until the end of the late sleep period;

[0080] Where Q 初 <Q 中 <Q 设 , Q 中 Indicates the third setting value.

[0081] In the late sleep period, the initial angle of the fresh air baffle is the third angle γ, combined with Figure 5 , the fresh air baffle is opened to the middle position 30°. Figure 2 First, the first monitoring value Q1 of the indoor air quality is compared with the first set value Q 设For comparison, if the indoor air quality does not meet the current user setting requirements, the fresh air damper is operated to the sixth angle ζ to increase the air inlet area, thereby increasing the fresh air volume to quickly improve the indoor air quality. At this stage, both the fresh air noise and the air quality are taken into account, and the value of ζ is set to γ<ζ≤β, and the preferred value of ζ is β. Then, the indoor air quality is still monitored in real time, and the monitoring value here is recorded as the third monitoring value Q3, which is compared with the third setting value Q 中 Compare, that is, judge according to the indoor air quality control requirements at the beginning of sleep, so as to provide a better comfortable sleeping environment. 中 When Q3>Q 中 , it will run at the sixth angle ζ until the end of the late sleep period, which can avoid frequent adjustment of the fresh air baffle angle while ensuring a good sleeping environment.

[0082] Further optionally, in the late stage of sleep, the opening angle of the fresh air damper is adjusted according to the indoor air quality to adjust the fresh air volume, and S325 is also included:

[0083] S325, when the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the third angle γ unchanged until the late sleep period ends.

[0084] In the late stage of sleep, if the first monitored value of the indoor air quality can meet the current user setting requirements, the fresh air damper is operated at the initial angle of this stage until entering the late stage of sleep. In this stage, both the fresh air noise and the air quality are taken into consideration, and it is preferred to maintain the indoor air quality at the minimum angle in this stage.

[0085] A second aspect of the present invention provides a control device for a fresh air air conditioner, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any method according to the first aspect.

[0086] A third aspect of the present invention provides a fresh air conditioner, which adopts any method of the first aspect, or includes the control device of the second aspect.

[0087] In different embodiments provided by the present invention, the same parameters, nouns, logic, etc. should be understood as having a unified meaning, and the present application does not intentionally repeat the description in each embodiment.

[0088] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A control method for a fresh air air conditioner, characterized in that: The fresh air air conditioner comprises a fresh air fan, the fresh air fan is provided with a shell, and a fresh air inlet is provided on the shell; a fresh air baffle is rotatably provided at the fresh air inlet, the fresh air air conditioner is provided with a sleep mode, the sleep mode is divided into multiple sleep stages, the multiple sleep stages include early sleep, middle sleep and late sleep, and the initial angles corresponding to the early sleep, middle sleep and late sleep are a first angle α, a second angle β and a third angle γ, respectively, wherein α>β>γ; when the fresh air function is turned on in the sleep mode, the method comprises: S1. Determine the current sleep stage of the fresh air air conditioner, and control the fresh air baffle to operate to an initial angle of the corresponding stage; S2. Monitor indoor air quality; S3, adjusting the opening angle of the fresh air baffle according to the indoor air quality and the initial angle corresponding to the current sleep stage to adjust the fresh air volume; The S3 includes: Obtaining a first monitoring value of indoor air quality, and comparing it with a first set value; In the early stage of sleep, when the first monitoring value is greater than the first setting value, the fresh air damper is controlled to maintain the first angle unchanged until entering the middle stage of sleep; when the first monitoring value is less than or equal to the first setting value, the fresh air damper is controlled to operate to a fourth angle δ and then remain unchanged until entering the middle stage of sleep; wherein β≤δ<α; In the middle stage of sleep, when the first monitoring value is greater than the first setting value, the fresh air damper is controlled to operate to a fifth angle ε; a second monitoring value of indoor air quality is obtained, and the second monitoring value is compared with the second setting value; when the second monitoring value is less than or equal to the second setting value, the fresh air damper is controlled to operate to the second angle and remain unchanged until entering the late stage of sleep; wherein β<ε≤α, the first setting value is greater than the second setting value; In the late sleep period, when the first monitoring value is greater than the first setting value, the fresh air baffle is controlled to operate to a sixth angle ζ; a third monitoring value of the indoor air quality is obtained, and it is compared with the third setting value; when the third monitoring value is less than or equal to the third setting value, the fresh air baffle is controlled to operate to the third angle and then remain unchanged until the end of the late sleep period; wherein, γ<ζ≤β, and the third setting value is greater than the second setting value and less than the first setting value.

2. The method according to claim 1, characterized in that The S2 includes: Obtain monitored values ​​of indoor air quality and compare them with different set values; The air quality condition is determined according to the comparison result.

3. The method according to claim 2, characterized in that The S3 further includes: In the middle sleep period, when the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the second angle unchanged until entering the late sleep period.

4. The method according to claim 2, characterized in that The S3 further includes: In the late sleep period, when the first monitoring value is less than or equal to the first set value, the fresh air baffle is controlled to maintain the third angle unchanged until the late sleep period ends.

5. The method according to any one of claims 1 to 4, characterized in that In the sleep mode, the method further includes: The rotation speed of the indoor fan of the fresh air air conditioner is controlled to be the minimum rotation speed at which it can operate, and the rotation speed of the fresh air fan of the fresh air air conditioner is controlled to be the minimum rotation speed at which it can operate.

6. A control device for a fresh air air conditioner, characterized in that: It includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the method according to any one of claims 1-5.

7. A fresh air air conditioner, characterized in that: The method according to any one of claims 1 to 5 is adopted, or the control device according to claim 6 is included.

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