Duct type air conditioner control method and device and duct type air conditioner

Abstract

The invention discloses a duct type air conditioner control method and device and a duct type air conditioner, the method is applied to the duct type air conditioner, the duct type air conditioner is a double-air-outlet duct type air conditioner and comprises a fan and volutes, the volutes comprise a fixed volute and a movable volute, and the air outlet direction of the duct type air conditioner is adjusted by rotating the movable volute; the method comprises the steps that after a movable volute of the duct type air conditioner rotates, the current value of a draught fan is detected; judging whether the movable volute rotates in place or not according to the current value of the fan; and controlling the operation of the duct type air conditioner according to the judgment result. The problem that in the prior art, an air outlet and return air short circuit is caused due to the fact that rotation is not in place in the rotating process of an air duct type air conditioner volute is solved, the operation stability of the air duct type air conditioner is improved, the comfort of a user is improved, and the service life of the air duct type air conditioner is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of duct machines, and in particular to a duct machine control method, a control device and a duct machine. Background Art

[0002] Duct air conditioners are concealed air conditioners and are widely used in hotels, residences, offices and other places. However, due to the different densities of cold and hot air, the cold air will sink and the hot air will float, affecting the comfort.

[0003] The dual air outlet design of the reversible air supply duct unit can effectively solve the problem of cold air sinking and hot air floating. It mainly realizes the steering of the wind field by rotating the volute, ensuring the side air outlet in cooling mode and the air outlet in heating mode. However, if the volute gets stuck or does not rotate properly during the movement, the air outlet and return air will be short-circuited, affecting the use effect, and even causing the evaporation temperature to be too low during cooling operation, resulting in liquid return, and the condensation temperature to be too high during heating operation. The compressor load increases, resulting in poor compressor reliability and affecting the service life of the unit.

[0004] With regard to the problem in the related art that the volute of the ducted air conditioner does not rotate properly during rotation, resulting in a short circuit of the air outlet and return air, no effective solution has been proposed so far. Summary of the invention

[0005] The present invention provides a duct machine control method, a control device and a duct machine, so as to at least solve the problem in the prior art that the volute of the duct machine does not rotate properly during rotation, resulting in a short circuit of the air outlet and return air.

[0006] To solve the above technical problems, according to one aspect of an embodiment of the present invention, a duct machine control method is provided, which is applied to the duct machine, wherein the duct machine is a dual-outlet duct machine, including a fan and a volute, the volute including a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute; the method includes: after the movable volute of the duct machine performs a rotation action, detecting the current value of the fan; judging whether the movable volute is rotated into place according to the current value of the fan; and controlling the operation of the duct machine according to the judgment result.

[0007] Furthermore, before the movable volute of the duct dryer performs the rotation action, it also includes: detecting the operating mode of the duct dryer, wherein the operating mode at least includes: a cooling mode and a heating mode; determining the rotation direction of the movable volute according to the operating mode to control the movable volute to perform the rotation action.

[0008] Further, the rotation direction of the movable volute is determined according to the operating mode, including: when the operating mode is the cooling mode, the rotation direction of the movable volute is determined to be rotation in the downward air inlet direction; when the operating mode is the heating mode, the rotation direction of the movable volute is determined to be rotation in the side air inlet direction.

[0009] Further, judging whether the movable volute has rotated into position according to the current value of the fan includes: detecting the current change value of the fan after the fan is turned on for a preset time; judging whether the movable volute has rotated into position according to the current change value and / or the current value.

[0010] Further, judging whether the movable volute has rotated into place according to the current change value includes: determining a changing trend of the current value according to the current change value; when the changing trend of the current value is gradually decreasing and the current change value is greater than a preset value, determining that the movable volute has not rotated into place; otherwise, determining that the movable volute has rotated into place.

[0011] Further, judging whether the movable volute has rotated into place according to the current value includes: obtaining a current threshold of the fan, wherein the current threshold is a rated current value corresponding to when the fan has rotated into place; judging whether the current value is less than the current threshold; if so, determining that the movable volute has not rotated into place; otherwise, determining that the movable volute has rotated into place.

[0012] Furthermore, the operation of the duct dryer is controlled according to the judgment result, including: when the movable volute rotates into place, controlling the duct dryer to operate according to the current operation mode; when the movable volute does not rotate into place, controlling the movable volute to re-execute the rotation action, after the movable volute re-executes the rotation action, re-detecting whether the movable volute is rotated into place, and when the movable volute does not rotate into place, issuing a volute abnormality reminder.

[0013] According to another aspect of an embodiment of the present invention, a duct machine control device is provided, which is applied to the duct machine, wherein the duct machine is a dual-outlet duct machine, including a fan and a volute, wherein the volute includes a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute; the device includes: a detection module, which is used to detect the current value of the fan after the movable volute of the duct machine performs a rotation action; a judgment module, which is used to judge whether the movable volute is rotated into place according to the current value of the fan; and a control module, which is used to control the operation of the duct machine according to the judgment result.

[0014] According to another aspect of the embodiments of the present invention, a duct air conditioner is provided, comprising the duct air conditioner control device as described above.

[0015] According to another aspect of an embodiment of the present invention, there is provided a storage medium comprising computer executable instructions, wherein the computer executable instructions are used to execute the above-mentioned duct machine control method when executed by a computer processor.

[0016] In the present invention, a control scheme for a reversible duct machine is provided. The duct machine is a double-outlet duct machine. The outlet direction is adjusted by rotating the movable volute. After the movable volute of the duct machine performs the rotation action, the current value of the fan is detected to determine whether the movable volute is rotated in place, so as to control the operation of the duct machine according to the judgment result. The rotation of the movable volute can be accurately determined by the current value of the fan, that is, the operation of the movable volute can be accurately determined without increasing the cost of the unit under the existing configuration, effectively solving or reducing the problem of poor comfort and poor reliability of the unit due to the short circuit of the outlet and return air caused by the failure of the movable volute to rotate in place, thereby improving the stability of the operation of the duct machine, the comfort of the user and the service life of the duct machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an optional schematic diagram of side air outlet of a duct unit according to an embodiment of the present invention;

[0018] Figure 2 This is an optional schematic diagram of the bottom air outlet of the duct machine according to an embodiment of the present invention;

[0019] Figure 3 is an optional schematic diagram of a duct machine volute that does not rotate properly according to an embodiment of the present invention;

[0020] Figure 4 is an optional flow chart of a duct machine control method according to an embodiment of the present invention;

[0021] Figure 5 This is an optional structural block diagram of the air duct machine control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

[0023] 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.

[0024] 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.

[0025] It should be understood that although the terms first, second, third, etc. may be used to describe controllers in embodiments of the present invention, these controllers should not be limited to these terms. These terms are only used to distinguish controllers connected to different devices. For example, without departing from the scope of embodiments of the present invention, a first controller may also be referred to as a second controller, and similarly, a second controller may also be referred to as a first controller.

[0026] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0027] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0028] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] In the preferred embodiment 1 of the present invention, a control method for a duct machine is provided, which is applied to the duct machine. The duct machine is a double-outlet duct machine, including a fan and a volute, the volute includes a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute. Because cold air sinks and hot air rises, the air outlet direction of the double-outlet duct machine includes side outlet and bottom outlet, and there are two air outlets, one located in the upper part of the room for blowing out hot air. The other is located in the lower part of the room for blowing out cold air. This design can ensure that hot air circulates in the upper part and cold air circulates in the lower part, so as to better control the temperature distribution in the room. The reversible duct machine can effectively improve the cooling and heating effects.

[0031] The duct air conditioner consists of an evaporator, a moving volute, a fixed volute, a motor, and a fan blade. The fixed volute of the duct air conditioner does not rotate, and the different air outlet modes are mainly achieved by the rotation of the moving volute. In the cooling mode, the air is discharged from the side and the air is returned from the bottom. In the heating mode, the air is discharged from the bottom and the air is returned from the side.

[0032] Figure 1 An optional schematic diagram of the side air outlet of the duct unit is shown, such as Figure 1 As shown, the evaporator is arranged at the side air outlet of the duct machine, and the incoming air is discharged after heat exchange through the evaporator. When the air is discharged from the side, the moving volute is at the bottom, which is the cooling mode.

[0033] Figure 2 An optional schematic diagram of the ducted air conditioner with downward air outlet is shown, such as Figure 2 As shown in the figure, the moving volute is on the left. Figure 1 and Figure 2 Turn the button to the position shown to adjust the air outlet direction. This is the heating mode.

[0034] Figure 3 An optional schematic diagram showing that the volute is not rotated properly, such as Figure 3 As shown in the figure, the moving volute is not at the bottom or left, but in the middle. Regardless of heating or cooling, a short circuit between the return air and the outlet air may occur. At this time, the air volume of the unit is reduced, affecting the heat exchange effect.

[0035] Figure 4 An optional flow chart of the duct machine control method is shown as follows: Figure 4 As shown, the duct machine control method includes:

[0036] S402: After the movable volute of the duct fan performs a rotation action, detecting the current value of the fan;

[0037] S404: judging whether the movable volute has rotated to the right position according to the current value of the fan;

[0038] S406: Control the operation of the duct air conditioner according to the determination result.

[0039] In the above embodiment, a control scheme for a reversible duct machine is provided. The duct machine is a double-outlet duct machine. The outlet direction is adjusted by rotating the movable volute. After the movable volute of the duct machine performs the rotation action, the current value of the fan is detected to determine whether the movable volute is rotated in place, so as to control the operation of the duct machine according to the judgment result. The rotation of the movable volute can be accurately determined by the current value of the fan, that is, the operation of the movable volute can be accurately determined without increasing the cost of the unit under the existing configuration, effectively solving or reducing the problem of poor comfort and poor reliability of the unit due to the short circuit of the outlet and return air caused by the failure of the movable volute to rotate in place, thereby improving the stability of the operation of the duct machine, the comfort of the user and the service life of the duct machine.

[0040] Since there is a linear relationship between the unit air volume q and the fan current I: I = Aq + B, where A and B are constant values, the unit air volume q is proportional to the fan current I. The above relationship is when the volute is rotated in place, but when the unit volute is not rotated in place, the system will have a return air short circuit, the unit air volume q will decrease, and I will also decrease. Therefore, the air volume can be determined by detecting the fan current, and then the rotation of the volute can be determined by the air volume.

[0041] In a preferred embodiment of the present invention, before the movable volute of the air duct machine performs the rotation action, it also includes: detecting the operating mode of the air duct machine, wherein the operating mode includes at least: cooling mode and heating mode; determining the rotation direction of the movable volute according to the operating mode to control the movable volute to perform the rotation action. The air outlet direction is changed by rotating the volute, so that the air is discharged from different directions under different operating models to achieve the best air supply effect. Because the cold air sinks and the hot air rises, the air outlet direction of the double-outlet air duct machine includes side outlet and bottom outlet, and there are two air outlets, wherein the cooling mode is the side outlet and the bottom return air mode, and the heating mode is the bottom outlet and the side return air mode. This design can ensure that the hot air circulates in the upper part and the cold air circulates in the lower part, so as to better control the indoor temperature distribution. The reversible air duct machine can effectively improve the cooling and heating effects.

[0042] After determining the air outlet direction, the rotation direction of the moving volute is determined according to the operation mode, including: when the operation mode is the cooling mode, the rotation direction of the moving volute is determined to rotate in the downward air intake direction; when the operation mode is the heating mode, the rotation direction of the moving volute is determined to rotate in the side air intake direction. Figure 1 and Figure 2 As shown, the evaporator is arranged at the air outlet of the duct unit, and the incoming air is discharged after passing through the evaporator for heat exchange. When the air is discharged from the side, the moving volute is at the bottom, which is the cooling mode. The moving volute is on the left, which is the heating mode.

[0043] After the movable volute is rotated according to the operation mode, judging whether the movable volute is rotated in place according to the current value of the fan includes: detecting the current change value of the fan after the fan is turned on for a preset time; judging whether the movable volute is rotated in place according to the current change value and / or the current value. Due to the corresponding relationship between the current value and the air volume, the current value or the change value of the current value can be detected to reflect the air volume, and then determine whether the volute is rotated in place.

[0044] Specifically, judging whether the movable volute has rotated to the right position according to the current change value includes: determining the change trend of the current value according to the current change value; when the change trend of the current value is gradually decreasing and the current change value is greater than a preset value, determining that the movable volute has not rotated to the right position; otherwise, determining that the movable volute has rotated to the right position. When the unit is turned on in the cooling operation mode, the fan system determines that the movable volute first performs the side air outlet rotation action, and then judges the position state of the volute. After the fan is turned on for t time, the current change ΔI1 and the instantaneous current I at the moment of unit time T1(s) are detected. n , the change in current I is ΔI1=I 前 -I 后 When the current value change of the internal fan is detected, △I1>0, it means that the instantaneous current of the motor I n It is gradually decreasing. If △I1>M, the risk of short circuit of air outlet and return air in the unit is judged at this time, and the volute needs to perform the side air outlet rotation action again. When the unit is turned on in heating operation mode, the fan system judges that the moving volute first performs the downward air outlet rotation action, and then judges the position state of the volute. After the fan is turned on for t time, the current change ΔI2 and the instantaneous current I per unit time T2 (s) are detected. n , the change in current I is ΔI2=I 前 -I 后 When the current value change of the internal fan is detected, △I2>0, it means that the instantaneous current of the motor I n It is gradually decreasing. If △I2>P, it is judged that there is a risk of short circuit of the unit's air outlet and return air, and the volute needs to perform the side air outlet rotation action again.

[0045] In addition, judging whether the moving volute is fully rotated according to the current value includes: obtaining the current threshold of the fan, wherein the current threshold is the rated current value corresponding to when the fan is fully rotated; judging whether the current value is less than the current threshold; if so, determining that the moving volute is not fully rotated; otherwise, determining that the moving volute is fully rotated. The rated currents I1 and I2 of the fan motors with different air outlet directions can be measured through experiments. These are the current values ​​of the fan motors when the volute is fully rotated. However, when the unit volute is not fully rotated, the system will have a return air outlet short circuit, the unit air volume q will decrease, and I will also decrease. Therefore, by comparing the current current value with the rated current value, it is possible to determine whether the volute is fully rotated.

[0046] Based on the structure of the moving volute, the present invention uses a current value to determine whether the volute has rotated into place, which is simple and reliable, does not require additional costs, is beneficial to the operation of the duct machine, improves operational stability, and enhances the overall performance of the duct machine.

[0047] In another preferred embodiment of the present invention, the operation of the duct machine is controlled according to the judgment result, including: when the movable volute rotates into place, controlling the duct machine to operate according to the current operation mode; when the movable volute does not rotate into place, controlling the movable volute to re-execute the rotation action, after the movable volute re-executes the rotation action, re-detecting whether the movable volute is rotated into place, and when the movable volute does not rotate into place, issuing a volute abnormality reminder.

[0048] When the unit starts the cooling operation mode, it is judged that the unit has a short circuit risk of air outlet and return air. The volute needs to perform the side air outlet rotation action again and perform the current judgment again. If I n Continuous decay, I n >N, at this time, it is judged that the rotation of the east volute is still not in place, such as Figure 3 As shown, the unit reports abnormal rotation of the volute; on the contrary, if △I1≤0 and the instantaneous current I n ≥I 1， The unit enters normal cooling mode; where M<N.

[0049] When the unit is turned on in heating mode, the risk of short circuit of the unit's air outlet and return air is determined. The volute needs to perform the side air outlet rotation action again and perform current judgment again. If I n Continuous decay, I n >Q, at this time, it is judged that the movable volute still cannot rotate into place, such as Figure 3 As shown, the unit reports abnormal rotation of the volute; on the contrary, if △I2≤0 and the instantaneous current I n ≥I 2， The unit enters normal heating mode; P<Q.

[0050] The present invention provides a reversible air supply duct machine and a control method thereof, which determines whether the circulating air volume of the unit is attenuated and whether the outlet and return air are short-circuited through the current change of the DC motor, accurately determines the operation status of the moving volute without increasing the cost of the unit with the existing configuration, effectively solves or reduces the problem of poor comfort and reliability of the unit caused by the outlet and return air short-circuit, accurately determines whether the rotation of the moving volute of the unit is correct, and ensures the reliability of the unit operation and the comfort of users.

[0051] Example 2

[0052] Based on the duct machine control method provided in the above embodiment 1, a duct machine control device is further provided in a preferred embodiment 2 of the present invention, which is applied to the duct machine. The duct machine is a double-air outlet duct machine, including a fan and a volute, the volute includes a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute; specifically, Figure 5 An optional structural block diagram of the device is shown, such as Figure 5 As shown, the device comprises:

[0053] The detection module 502 is used to detect the current value of the fan after the movable volute of the duct fan performs a rotation action;

[0054] The judging module 504 is connected to the detecting module 502 and is used to judge whether the movable volute has rotated to the right position according to the current value of the fan;

[0055] The control module 506 is connected to the judgment module 504 and is used to control the operation of the duct machine according to the judgment result.

[0056] In the above embodiment, a control scheme for a reversible duct machine is provided. The duct machine is a double-outlet duct machine. The outlet direction is adjusted by rotating the movable volute. After the movable volute of the duct machine performs the rotation action, the current value of the fan is detected to determine whether the movable volute is rotated in place, so as to control the operation of the duct machine according to the judgment result. The rotation of the movable volute can be accurately determined by the current value of the fan, that is, the operation of the movable volute can be accurately determined without increasing the cost of the unit under the existing configuration, effectively solving or reducing the problem of poor comfort and poor reliability of the unit due to the short circuit of the outlet and return air caused by the failure of the movable volute to rotate in place, thereby improving the stability of the operation of the duct machine, the comfort of the user and the service life of the duct machine.

[0057] The device also includes: a mode control module, which is used to detect the operating mode of the duct machine before the movable volute of the duct machine performs a rotation action, wherein the operating mode at least includes: a cooling mode and a heating mode; a volute control module, which is used to determine the rotation direction of the movable volute according to the operating mode to control the movable volute to perform the rotation action.

[0058] The volute control module includes: when the operation mode is a cooling mode, determining the rotation direction of the moving volute to rotate in the downward air intake direction; when the operation mode is a heating mode, determining the rotation direction of the moving volute to rotate in the side air intake direction.

[0059] The judgment module 504 includes: a detection unit, which is used to detect the current change value of the fan after the fan is turned on for a preset time; and a judgment unit, which is used to judge whether the movable volute is rotated into place according to the current change value and / or the current value.

[0060] The judgment unit includes: a first judgment subunit, which is used to determine the change trend of the current value according to the current change value; when the change trend of the current value is gradually decreasing and the current change value is greater than a preset value, it is determined that the movable volute has not been rotated into place; otherwise, it is determined that the movable volute has been rotated into place. And a second judgment subunit, which is used to obtain the current threshold of the fan, wherein the current threshold is the rated current value corresponding to when the fan is rotated into place; determine whether the current value is less than the current threshold; if so, determine that the movable volute has not been rotated into place; otherwise, determine that the movable volute has been rotated into place.

[0061] Furthermore, the control module 506 includes: a first control unit, used to control the duct machine to operate according to the current operating mode when the moving volute is rotated into place; a second control unit, used to control the moving volute to re-execute the rotation action when the moving volute is not rotated into place, and after the moving volute re-executes the rotation action, re-detect whether the moving volute is rotated into place, and when the moving volute is not rotated into place, issue a volute abnormality reminder.

[0062] Regarding the device in the above embodiment, the specific manner in which each unit and module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0063] Example 3

[0064] Based on the air duct machine control device provided in the above embodiment 2, a preferred embodiment 3 of the present invention further provides an air duct machine, including the air duct machine control device as described above.

[0065] In the above embodiment, a control scheme for a reversible duct machine is provided. The duct machine is a double-outlet duct machine. The outlet direction is adjusted by rotating the movable volute. After the movable volute of the duct machine performs the rotation action, the current value of the fan is detected to determine whether the movable volute is rotated in place, so as to control the operation of the duct machine according to the judgment result. The rotation of the movable volute can be accurately determined by the current value of the fan, that is, the operation of the movable volute can be accurately determined without increasing the cost of the unit under the existing configuration, effectively solving or reducing the problem of poor comfort and poor reliability of the unit due to the short circuit of the outlet and return air caused by the failure of the movable volute to rotate in place, thereby improving the stability of the operation of the duct machine, the comfort of the user and the service life of the duct machine.

[0066] Example 4

[0067] Based on the duct machine control method provided in the above embodiment 1, a storage medium containing computer executable instructions is also provided in a preferred embodiment 4 of the present invention. When the computer executable instructions are executed by a computer processor, they are used to execute the duct machine control method as described above.

[0068] In the above embodiment, a control scheme for a reversible duct machine is provided. The duct machine is a double-outlet duct machine. The outlet direction is adjusted by rotating the movable volute. After the movable volute of the duct machine performs the rotation action, the current value of the fan is detected to determine whether the movable volute is rotated in place, so as to control the operation of the duct machine according to the judgment result. The rotation of the movable volute can be accurately determined by the current value of the fan, that is, the operation of the movable volute can be accurately determined without increasing the cost of the unit under the existing configuration, effectively solving or reducing the problem of poor comfort and poor reliability of the unit due to the short circuit of the outlet and return air caused by the failure of the movable volute to rotate in place, thereby improving the stability of the operation of the duct machine, the comfort of the user and the service life of the duct machine.

[0069] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0070] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0072] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0073] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0074] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0075] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0076] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A duct machine control method, characterized in that: Applied to a duct machine, the duct machine is a double-outlet duct machine, including a fan and a volute, the volute includes a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute; the method includes: After the movable volute of the duct fan performs a rotation action, detecting the current value of the fan; judging whether the movable volute has rotated to the right position according to the current value of the fan; The operation of the duct machine is controlled according to the judgment result.

2. The method according to claim 1, characterized in that Before the movable volute of the duct machine performs a rotation action, the method further includes: Detecting the operation mode of the duct unit, wherein the operation mode includes at least: a cooling mode and a heating mode; The rotation direction of the movable volute is determined according to the operation mode to control the movable volute to perform a rotation action.

3. The method according to claim 2, characterized in that Determining the rotation direction of the moving volute according to the operation mode includes: When the operation mode is the cooling mode, the rotation direction of the moving volute is determined to be a downward air inlet direction; When the operation mode is the heating mode, the rotation direction of the movable volute is determined to be rotation in the side air inlet direction.

4. The method according to claim 1, characterized in that: Judging whether the movable volute has rotated to a certain position according to the current value of the fan includes: After the fan is turned on for a preset time, detecting a current change value of the fan; Whether the movable volute has rotated to the correct position is determined according to the current change value and / or the current value.

5. The method according to claim 4, characterized in that Judging whether the movable volute has rotated to a certain position according to the current change value includes: Determining a change trend of the current value according to the current change value; When the change trend of the current value is gradually decreasing and the current change value is greater than a preset value, it is determined that the movable volute has not rotated to the correct position; Otherwise, it is determined that the movable volute has rotated into place.

6. The method according to claim 4, characterized in that Judging whether the movable volute has rotated to a certain position according to the current value includes: Obtaining a current threshold of the fan, wherein the current threshold is a rated current value corresponding to when the fan rotates to a certain position; Determining whether the current value is less than the current threshold; If yes, it is determined that the moving volute has not rotated into place; Otherwise, it is determined that the movable volute has rotated into place.

7. The method according to claim 1, characterized in that Controlling the operation of the duct machine according to the judgment result includes: When the movable volute rotates to the right position, the duct fan is controlled to operate according to the current operation mode; When the movable volute is not rotated into place, the movable volute is controlled to re-execute the rotation action. After the movable volute re-executes the rotation action, it is re-detected whether the movable volute is rotated into place. When the movable volute is not rotated into place, a volute abnormality reminder is issued.

8. A duct machine control device, characterized in that: Applied to a duct machine, the duct machine is a double-outlet duct machine, including a fan and a volute, the volute includes a fixed volute and a movable volute, and the duct machine adjusts the air outlet direction by rotating the movable volute; the device includes: A detection module, used for detecting the current value of the fan after the movable volute of the duct fan performs a rotation action; A judging module, used for judging whether the movable volute has rotated into place according to the current value of the fan; A control module is used to control the operation of the duct machine according to the judgment result.

9. A duct machine, characterized in that: It comprises the air duct machine control device as described in claim 8.

10. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the air duct machine control method according to any one of claims 1 to 7 when executed by a computer processor.

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