Volute position detection method and device and air conditioner

Abstract

The invention discloses a volute position detection method and device and an air conditioner. The method is applied to the air conditioner, the air conditioner comprises a movable volute and a fixed volute, when the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner, and when the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner. The method comprises the steps that the target evaporator temperature is determined according to the operation mode of the air conditioner, the indoor environment temperature and the outdoor environment temperature; wherein the corresponding relation between the target evaporator temperature and the indoor environment temperature and the corresponding relation between the target evaporator temperature and the outdoor environment temperature are preset in different operation modes; and whether the movable volute rotates in place or not is judged according to the operation mode, the actual evaporator temperature and the target evaporator temperature. By means of the air conditioner, the situation that the movable volute does not rotate in place can be accurately detected in time, and the heat exchange effect and the service life of the air conditioner are prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a method and device for detecting a volute position and an air conditioner. Background Art

[0002] In order to avoid direct cold air blowing, existing air conditioners are generally equipped with a moving volute and a fixed volute. The wind field is turned by rotating the moving volute to ensure side air discharge in cooling mode and air discharge in heating mode. However, when the above scheme is used to switch the air outlet direction, if the moving volute gets stuck or does not rotate properly during the movement, it will cause a short circuit between the air outlet and the return air. If the moving volute gets stuck or does not rotate properly and cannot be discovered in time, it will greatly affect the heat exchange effect. In severe cases, it will also cause the evaporation temperature to be too low during cooling operation and 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 air conditioner.

[0003] There is currently no effective solution to the problem that the air conditioner in the prior art cannot promptly and accurately detect that the moving volute is stuck or not rotated properly when switching the air outlet direction, thereby affecting the heat exchange effect and service life of the air conditioner. Summary of the invention

[0004] A volute position detection method, device and air conditioner are provided in the embodiments of the present invention to solve the problem in the prior art that the air conditioner cannot promptly and accurately detect that the movable volute is stuck or not rotated properly when switching the air outlet direction, thereby affecting the heat exchange effect and service life of the air conditioner.

[0005] In order to solve the above technical problems, the present invention provides a volute position detection method, which is applied to an air conditioner, wherein the air conditioner includes a movable volute and a fixed volute, when the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner, and when the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner, the method comprising:

[0006] Determine the target evaporator temperature according to the operation mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature; wherein the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operation modes is preset;

[0007] Whether the movable volute has rotated to the desired position is determined according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

[0008] Furthermore, the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operation modes is preset, including:

[0009] In cooling mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, and the evaporator temperature of the air conditioner after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in cooling mode;

[0010] In the heating mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, as well as the evaporator temperature after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in the heating mode.

[0011] Further, judging whether the movable volute has rotated to the right position according to the operation mode, the actual evaporator temperature and the target evaporator temperature includes:

[0012] After the air conditioner has been running for a preset time, the actual evaporator temperature is compared with the target evaporator temperature;

[0013] According to the comparison result and the judgment strategy corresponding to the operation mode, it is judged whether the movable volute is rotated to the right position.

[0014] Further, judging whether the movable volute has rotated to the right position according to the comparison result and the judgment strategy corresponding to the operation mode includes:

[0015] If the actual evaporator temperature is lower than the target evaporator temperature, it is determined that the moving volute has not rotated to the desired position;

[0016] If the actual evaporator temperature is greater than or equal to the target evaporator temperature, it is determined that the moving volute has rotated to the desired position.

[0017] Further, in the heating mode, judging whether the movable volute has rotated to the right position according to the comparison result and the judgment strategy corresponding to the operation mode includes:

[0018] If the actual evaporator temperature is greater than the target evaporator temperature, it is determined that the moving volute has not rotated to the correct position;

[0019] If the actual evaporator temperature is less than or equal to the target evaporator temperature, it is determined that the moving volute has rotated to the desired position.

[0020] Furthermore, in the refrigeration mode, after determining that the movable volute has not rotated to the correct position, the method further includes:

[0021] Controlling the movable volute to reset, and then controlling the movable volute to rotate again;

[0022] After a preset time, determining whether the actual evaporator temperature is greater than or equal to the target evaporator temperature;

[0023] If yes, it is determined that the movable volute has rotated into place;

[0024] If not, a fault is reported and the air conditioner is controlled to shut down.

[0025] Furthermore, in the heating mode, after determining that the movable volute has not rotated to the right position, the method further includes:

[0026] Controlling the movable volute to reset, and then controlling the movable volute to rotate again;

[0027] After a preset time, determining whether the actual evaporator temperature is less than or equal to the target evaporator temperature;

[0028] If yes, it is determined that the movable volute has rotated into place;

[0029] If not, a fault is reported and the air conditioner is controlled to shut down.

[0030] Furthermore, before judging whether the movable volute has rotated to a certain position according to the operation mode, the actual evaporator temperature and the target evaporator temperature, the method further includes:

[0031] The frequency of the compressor of the air conditioner is controlled to increase to an upper limit in a current operation mode.

[0032] The present invention also provides a volute position detection device, the device comprising:

[0033] A determination module, used to determine a target evaporator temperature according to an operation mode of the air conditioner, an indoor ambient temperature and an outdoor ambient temperature; wherein a correspondence between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature is preset under different operation modes;

[0034] The judging module is used to judge whether the movable volute has rotated into place according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

[0035] The present invention also provides an air conditioner, comprising a movable volute and a fixed volute. When the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner. When the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner. The air conditioner also includes the above-mentioned volute position detection device.

[0036] Furthermore, the air conditioner is a duct type air conditioner.

[0037] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the above-mentioned volute position detection method is implemented.

[0038] The present invention also provides an electronic device, comprising:

[0039] one or more processors;

[0040] A storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned volute position detection method.

[0041] By applying the technical solution of the present invention, the corresponding target evaporator temperature, that is, the temperature that the evaporator should reach, is determined according to the operating mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature. Under different operating modes, as long as the indoor ambient temperature and the outdoor ambient temperature are determined, the temperature that the evaporator can reach is determined after the air conditioner has run for a preset time. Whether the moving volute has rotated into place is judged based on whether the actual evaporator temperature has reached the target evaporator temperature. The situation that the moving volute has not rotated into place can be detected in a timely and accurate manner, thereby avoiding affecting the heat exchange effect and service life of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the return air outlet direction of an existing air conditioner in cooling mode;

[0043] Figure 2 A schematic diagram of the return air outlet direction of an existing air conditioner in heating mode;

[0044] Figure 3 is a flow chart of a method for detecting a volute position according to an embodiment of the present invention;

[0045] Figure 4 is a schematic diagram of the position of the movable volute in the refrigeration mode according to an embodiment of the present invention when it has not rotated to the right position;

[0046] Figure 5 is a schematic diagram of the position of the lower volute in the heating mode according to an embodiment of the present invention when the lower volute has not rotated to the right position;

[0047] Figure 6 is a flow chart of a method for detecting a volute position according to an embodiment of the present invention;

[0048] Figure 7 is a structural block diagram of a volute position detection device according to an embodiment of the present invention;

[0049] Figure 8 : is a structural block diagram of a volute position detection device according to another embodiment of the present invention

[0050] Fig. 9 FIG. 4 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0051] 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.

[0052] 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.

[0053] 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.

[0054] It should be understood that although the terms first, second, etc. may be used to describe positions in embodiments of the present invention, these positions should not be limited to these terms. These terms are only used to distinguish different positions. For example, without departing from the scope of embodiments of the present invention, the first position may also be referred to as the second position, and similarly, the second position may also be referred to as the first position.

[0055] 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.

[0056] 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.

[0057] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0058] Example 1

[0059] In order to avoid direct cold air blowing, some existing air conditioners are equipped with a moving volute and a fixed volute. Figure 1 FIG. 1 is a schematic diagram of the return air outlet direction of an existing air conditioner in cooling mode. Figure 1 As shown, in cooling mode, the side air outlet blows out air, and the lower air outlet returns air. Figure 2 FIG. 1 is a schematic diagram of the return air outlet direction of an existing air conditioner in the heating mode. Figure 2 As shown, in the heating mode, air is discharged from the lower air outlet and air is returned from the side air outlet. In summary, the wind field is turned by controlling the rotation of the movable volute to ensure side air discharge in cooling mode and air discharge in heating mode. However, when the above method is used to switch the air outlet direction, if the movable volute gets stuck or fails to rotate properly during movement, a short circuit will occur between the air outlet and the return air. If the jamming or incomplete rotation of the movable volute cannot be discovered in time, the heat exchange effect will be greatly affected. In severe cases, the evaporation temperature will be too low during cooling operation, resulting in liquid return, and the condensation temperature will be too high during heating operation. The compressor load will increase, resulting in poor compressor reliability and affecting the service life of the air conditioner.

[0060] In view of the problem in the prior art that the air conditioner cannot timely and accurately detect the situation that the movable volute is stuck or cannot be rotated into place when switching the air outlet direction, thereby affecting the heat exchange effect and service life of the air conditioner, this embodiment provides a volute position detection method, which is applied to the air conditioner. The air conditioner includes a movable volute and a fixed volute. When the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner. When the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner. Figure 3 : is a flow chart of a method for detecting a volute position according to an embodiment of the present invention. Figure 3 As shown, the method includes:

[0061] S101, determining a target evaporator temperature according to an operation mode of the air conditioner, indoor ambient temperature and outdoor ambient temperature; wherein a correspondence between the target evaporator temperature and the indoor ambient temperature and outdoor ambient temperature under different operation modes is preset.

[0062] The above-mentioned operation modes include a cooling mode and a heating mode.

[0063] S102, judging whether the movable volute has rotated to the right position according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

[0064] The volute position detection method of the present embodiment determines the corresponding target evaporator temperature, that is, the temperature that the evaporator should reach, according to the operating mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature. Under different operating modes, as long as the indoor ambient temperature and the outdoor ambient temperature are determined, the evaporator can reach the temperature after the air conditioner has run for a preset time. Whether the movable volute has been rotated into place is judged based on whether the actual evaporator temperature has reached the target evaporator temperature. The situation that the movable volute has not been rotated into place can be detected in a timely and accurate manner, thereby avoiding affecting the heat exchange effect and service life of the air conditioner.

[0065] When the indoor ambient temperature is the same, but the outdoor ambient temperature is different, the indoor target temperature will be the same, and the evaporator temperature will be different. When the outdoor ambient temperature is the same, but the indoor ambient temperature is different, but the indoor target temperature will be the same, and the evaporator temperature will be different. Therefore, it is necessary to determine the target evaporator temperature based on the two parameters of indoor ambient temperature and outdoor ambient temperature.

[0066] Therefore, the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in different operating modes is preset, including: in the cooling mode, detecting the evaporator temperature after the air conditioner runs for a preset period of time at the same indoor ambient temperature and different outdoor ambient temperatures, and the evaporator temperature after the air conditioner runs for a preset period of time at the same outdoor ambient temperature and different indoor ambient temperatures, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in the cooling mode.

[0067] In cooling mode, the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature is shown in Table 1 below, where the outer ring is the outdoor ambient temperature and the inner ring is the indoor ambient temperature.

[0068]

[0069] As shown in Table 1, in the cooling mode, a unique target evaporator temperature A1, B1, C1, D1, ... can be determined by the outdoor ambient temperature and the indoor ambient temperature.

[0070] In the heating mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, as well as the evaporator temperature after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in the heating mode.

[0071] In heating mode, the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and outdoor ambient temperature is shown in Table 2 below:

[0072]

[0073] As shown in Table 2, in the heating mode, a unique target evaporator temperature A2, B2, C2, D2, ... can be determined by the outdoor ambient temperature and the indoor ambient temperature.

[0074] After the air conditioner enters the cooling mode or the heating mode, even if the movable volute is rotated into place, the evaporator temperature will not immediately reach the target evaporator temperature and needs to run for a period of time. Therefore, whether the movable volute is rotated into place is judged according to the operating mode, the actual evaporator temperature and the target evaporator temperature, including: after the air conditioner has run for a preset time, comparing the actual evaporator temperature with the target evaporator temperature; judging whether the movable volute is rotated into place according to the comparison result and the judgment strategy corresponding to the operating mode.

[0075] Under different operation modes, the target evaporator temperature and judgment strategy are different. Figure 4 This is a schematic diagram of the position of the volute in the cooling mode when it has not rotated to the right position. Figure 4 As shown, in the cooling mode, failure to fully rotate will cause air leakage, so that the air volume passing through the evaporator is too low, resulting in incomplete evaporation of the system refrigerant, and the evaporator temperature is low, lower than the target evaporator temperature. Therefore, whether the movable volute is fully rotated is judged according to the operating mode, the actual evaporator temperature and the target evaporator temperature, including: after the air conditioner has been running for a preset time, comparing the actual evaporator temperature with the target evaporator temperature; judging whether the movable volute is fully rotated according to the comparison result of the actual evaporator temperature and the target evaporator temperature and the judgment strategy corresponding to the current operating mode.

[0076] Specifically, in the refrigeration mode, based on the comparison result between the actual evaporator temperature and the target evaporator temperature and the judgment strategy corresponding to the current operating mode, it is judged whether the moving volute has rotated into place, including: if the actual evaporator temperature is lower than the target evaporator temperature, it indicates that there is air leakage, and it is judged that the moving volute has not rotated into place; if the actual evaporator temperature is greater than or equal to the target evaporator temperature, it indicates that there is no air leakage, and it is judged that the moving volute has rotated into place.

[0077] If the movable volute does not rotate into place, it may be due to the fact that the movable volute is stuck. At this time, the problem can be solved by resetting the movable volute and then rotating it again. Therefore, in the cooling mode, after determining that the movable volute has not rotated into place, the above method also includes: controlling the movable volute to reset, and then controlling the movable volute to rotate again; after a preset time, judging whether the actual evaporator temperature is greater than or equal to the target evaporator temperature; if so, judging that the movable volute has rotated into place; if not, it indicates that the movable volute is stuck and the problem of not rotating into place cannot be solved by resetting. At this time, in order to avoid affecting the heat exchange effect or the life of the air conditioner, the fault should be reported and the air conditioner should be controlled to shut down.

[0078] Figure 5 This is a schematic diagram of the position of the moving volute in the heating mode when it has not rotated to the right position. Figure 5 As shown, failure to fully rotate will cause air leakage, the air volume passing through the evaporator is too low, resulting in poor condensation effect of the system refrigerant and high evaporator tube temperature. Therefore, in the refrigeration mode, based on the comparison result of the actual evaporator temperature and the target evaporator temperature and the judgment strategy corresponding to the current operating mode, it is judged whether the movable volute is fully rotated, including: if the actual evaporator temperature is greater than the target evaporator temperature, it indicates that there is air leakage, and it is judged that the movable volute is not fully rotated; if the actual evaporator temperature is less than or equal to the target evaporator temperature, it indicates that there is no air leakage, and it is judged that the movable volute is fully rotated.

[0079] If the movable volute fails to rotate into place, it may be due to the fact that the movable volute is stuck. In this case, the problem can be solved by resetting the movable volute and then rotating it again. Therefore, in the heating mode, after determining that the movable volute has not rotated into place, the above method also includes: controlling the movable volute to reset, and then controlling the movable volute to rotate again; after a preset time, determining whether the actual evaporator temperature is less than or equal to the target evaporator temperature; if so, determining that the movable volute has rotated into place; if not, the movable volute is stuck and the problem of not rotating into place cannot be solved by resetting. At this time, in order to avoid affecting the heat exchange effect or the life of the air conditioner, the fault should be reported and the air conditioner should be controlled to shut down.

[0080] In cooling mode or heating mode, the evaporator temperature does not reach the target evaporator temperature, which may also be caused by the compressor frequency being too low. Therefore, in order to eliminate the influence of the compressor frequency, improve the accuracy of the moving volute position detection, and avoid misjudgment, before judging whether the moving volute is rotated into place according to the operating mode, the actual evaporator temperature and the target evaporator temperature, the above method also includes: controlling the frequency of the air conditioner compressor to increase to the upper limit under the current operating mode.

[0081] Example 2

[0082] This embodiment provides another method for detecting the position of the volute. Figure 6 : is a flow chart of a method for detecting a volute position according to an embodiment of the present invention. Figure 6 As shown, the volute position detection method volute position detection method includes:

[0083] S1, controls the air conditioner to start.

[0084] S2, determine whether the current mode is cooling mode or heating mode; if it is cooling mode, execute step S3, if it is heating mode, execute step S10.

[0085] S3, controls the volute to first perform the side air outlet rotation action, and at the same time the compressor runs to the upper frequency limit of the current mode.

[0086] S4, selecting a target evaporator temperature according to the current indoor ambient temperature and outdoor ambient temperature.

[0087] S5, after the air conditioner runs for a preset time T, determine the relationship between the actual evaporator temperature t and the target evaporator temperature t0, if t≥t0, execute step S6, if t<t0, execute step S7.

[0088] S6, determining that the movable volute has rotated into position.

[0089] S7, determining that the movable volute has not rotated to the correct position, controlling the movable volute to reset, and then performing the side air outlet rotation action again, and then executing step S8.

[0090] S8, judging the relationship between the actual evaporator temperature t and the target evaporator temperature t0, if t≥t0, executing step S6, if t<t0, executing step S9.

[0091] S9, determines that the volute rotating mechanism is stuck, controls the air conditioner to shut down and reports a fault.

[0092] After the air conditioner has been running for a preset time T, if t<t0, it is considered that the moving volute has not rotated into place, resulting in air leakage, the air volume passing through the evaporator is too low, resulting in incomplete evaporation of the system refrigerant, and the evaporator tube temperature is low. The moving volute needs to perform the side air outlet rotation action again and then make a judgment. If t≥t0, it is judged that the volute has rotated into place and the air conditioner enters normal cooling mode; if t<t0 still, it is determined that the volute rotation mechanism is stuck, the air conditioner is controlled to shut down and a fault is reported.

[0093] S10, controlling the volute to first perform a downward air outlet rotation action, while the compressor runs to the upper frequency limit of the current mode.

[0094] S11, selecting a target evaporator temperature according to the current indoor ambient temperature and outdoor ambient temperature.

[0095] S12, after the air conditioner runs for a preset time T, determine the relationship between the actual evaporator temperature t and the target evaporator temperature t0, if t≤t0, execute step S13, if t>t0, execute step S14.

[0096] S13, determining whether the movable volute has rotated into position.

[0097] S14, determining that the movable volute has not rotated to the correct position, controlling the movable volute to reset, and then performing the side air outlet rotation action again, and then executing step S15.

[0098] S15, judging the relationship between the actual evaporator temperature t and the target evaporator temperature t0, if t≤t0, executing step S13, if t>t0, executing step S16.

[0099] S16, determining that the volute rotating mechanism is stuck, controlling the air conditioner to shut down and reporting a fault.

[0100] After the air conditioner has been running for a preset time T, if t>t0, it is considered that the moving volute has not been rotated into place, resulting in air leakage, the air volume passing through the evaporator is too low, resulting in poor condensation effect of the system refrigerant, and the evaporator tube temperature is high. The moving volute needs to perform the lower air outlet rotation action again before making a judgment; if t≤t0, it is judged that the volute has been rotated into place, and the air conditioner enters normal cooling mode; if t>t0, it is determined that the volute rotation mechanism is stuck, the air conditioner is controlled to shut down and a fault is reported.

[0101] Example 3

[0102] This embodiment provides a volute position detection device, Figure 7 : is a structural block diagram of a volute position detection device according to an embodiment of the present invention, as shown in Figure 7 As shown, the device comprises:

[0103] The determination module 10 is used to determine the target evaporator temperature according to the operation mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature; wherein the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operation modes is preset.

[0104] The judgment module 20 is used to judge whether the movable volute has rotated to the right position according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

[0105] The volute position detection device of the present embodiment determines the corresponding target evaporator temperature, that is, the temperature that the evaporator should reach, according to the operating mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature. Under different operating modes, as long as the indoor ambient temperature and the outdoor ambient temperature are determined, the evaporator can reach the temperature after the air conditioner has run for a preset time. Whether the movable volute has been rotated into place is judged based on whether the actual evaporator temperature has reached the target evaporator temperature. The situation that the movable volute has not been rotated into place can be detected in a timely and accurate manner, thereby avoiding affecting the heat exchange effect and service life of the air conditioner.

[0106] When the indoor ambient temperature is the same, but the outdoor ambient temperature is different, the indoor target temperature will be the same, and the evaporator temperature will be different. When the outdoor ambient temperature is the same, but the indoor ambient temperature is different, but the indoor target temperature will be the same, and the evaporator temperature will be different. Therefore, it is necessary to determine the target evaporator temperature based on the two parameters of indoor ambient temperature and outdoor ambient temperature.

[0107] Therefore, the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operating modes is preset, including:

[0108] In cooling mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, as well as the evaporator temperature after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in cooling mode.

[0109] In the heating mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, as well as the evaporator temperature after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in the heating mode.

[0110] After the air conditioner enters the cooling mode or the heating mode, even if the movable volute is rotated into place, the evaporator temperature will not immediately reach the target evaporator temperature and needs to run for a period of time. When the judgment module 20 judges whether the movable volute is rotated into place according to the operating mode, the actual evaporator temperature and the target evaporator temperature, the specific operation performed is: after the air conditioner runs for a preset time, compare the actual evaporator temperature with the target evaporator temperature; and judge whether the movable volute is rotated into place according to the comparison result and the judgment strategy corresponding to the operating mode.

[0111] In different operation modes, the target evaporator temperature and judgment strategy are different, as mentioned above. Figure 4 As shown in , failure to fully rotate will cause air leakage, so that the air volume passing through the evaporator is too low, resulting in incomplete evaporation of the system refrigerant, and the evaporator temperature is low, lower than the target evaporator temperature. Therefore, in the cooling mode, the judgment module 20 is specifically used for: when the actual evaporator temperature is lower than the target evaporator temperature, indicating that there is air leakage, determining that the movable volute has not been fully rotated; when the actual evaporator temperature is greater than or equal to the target evaporator temperature, indicating that there is no air leakage, determining that the movable volute has been fully rotated.

[0112] Figure 8 FIG. 1 is a structural block diagram of a volute position detection device according to another embodiment of the present invention. If the movable volute is not rotated into place, it may be due to the movable volute being stuck. In this case, the movable volute can be reset and then rotated again. Therefore, Figure 8As shown, the above-mentioned device also includes: a control module 30, which is used to control the movable volute to reset in the cooling mode, and then control the movable volute to rotate again when the judgment module 20 determines that the movable volute has not been rotated into place; after a preset time, the judgment module 20 again determines whether the actual evaporator temperature is greater than or equal to the target evaporator temperature; if so, it is determined that the movable volute has been rotated into place; if not, it indicates that the movable volute is stuck and the problem of incomplete rotation cannot be solved by resetting. At this time, in order to avoid affecting the heat exchange effect or the life of the air conditioner, the fault should be reported and the air conditioner should be controlled to shut down.

[0113] As mentioned above Figure 5 As shown in , failure to fully rotate will cause air leakage, the air volume passing through the evaporator is too low, resulting in poor condensation effect of the system refrigerant and high evaporator tube temperature. Therefore, in the heating mode, the judgment module 20 is also used to: when the actual evaporator temperature is greater than the target evaporator temperature, indicating that there is air leakage, determine that the movable volute has not been fully rotated; when the actual evaporator temperature is less than or equal to the target evaporator temperature, indicating that there is no air leakage, determine that the movable volute has been fully rotated.

[0114] If the movable volute fails to rotate into place, it may be due to the fact that the movable volute is stuck. In this case, the problem can be solved by resetting the movable volute and then rotating it again. Therefore, the control module 30 is also used for: in the heating mode, after the judgment module 20 determines that the movable volute has not rotated into place, controlling the movable volute to reset, and then controlling the movable volute to rotate again; after a preset time, the judgment module 20 re-judges whether the actual evaporator temperature is less than or equal to the target evaporator temperature; if so, it is determined that the movable volute has rotated into place; if not, the movable volute is stuck and the problem of not rotating into place cannot be solved by resetting. At this time, in order to avoid affecting the heat exchange effect or the life of the air conditioner, the fault should be reported and the air conditioner should be controlled to shut down.

[0115] In cooling mode or heating mode, if the evaporator temperature does not reach the target evaporator temperature, it may also be caused by the compressor frequency being too low. Therefore, in order to eliminate the influence of the compressor frequency and improve the accuracy of the dynamic volute position detection to avoid misjudgment, such as Figure 8 As shown, the above device also includes a frequency modulation module 40, which is used to control the frequency of the air conditioner compressor to increase to the upper limit in the current operating mode before judging whether the movable volute is rotated in place according to the operating mode, actual evaporator temperature and target evaporator temperature.

[0116] Example 4

[0117] The present embodiment provides an air conditioner, comprising a movable volute and a fixed volute. When the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner. When the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner. The air conditioner also comprises the volute position detection device of the above embodiment.

[0118] In some embodiments of the present invention, the air conditioner is a duct air conditioner, which is widely used in hotels, residences, offices and the like.

[0119] Example 5

[0120] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the volute position detection method of the above embodiment is implemented.

[0121] Example 6

[0122] This embodiment provides an electronic device, including:

[0123] one or more processors;

[0124] A storage device is used to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the volute position detection method of the above embodiment.

[0125] Fig. 9 FIG. 1 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Fig. 9 As shown, the electronic device includes:

[0126] One or more processors 910 and memory 920, Fig. 9 A processor 910 is taken as an example.

[0127] The electronic device may further include: an input device 930 and an output device 940 .

[0128] The processor 910, the memory 920, the input device 930 and the output device 940 may be connected via a bus or other means. Fig. 9 The example of connecting through bus is taken in the following.

[0129] The memory 920 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the volute position detection method in the embodiment of the present invention. The processor 910 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 920, that is, implementing the above method embodiment.

[0130] The memory 920 may include a program storage area and a data storage area, wherein the program storage area may store an application required for operating the device and at least one function; the data storage area may store data created according to the use of the volute position detection device, etc. In addition, the memory 920 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0131] The input device 930 may receive input digital or character information and generate key signal input related to user settings and function control of the electronic device. The output device 940 may include a display device such as a display screen.

[0132] The one or more modules are stored in the memory 920, and when executed by the one or more processors 910, the volute position detection method in any of the above method embodiments is executed.

[0133] The electronic device can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0134] The electronic device of the embodiment of the present invention exists in various forms, including but not limited to:

[0135] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0136] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0137] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, smart toys, and portable car navigation devices.

[0138] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0139] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0140] The device embodiments described above are merely illustrative, wherein 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 network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0141] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting the position of a volute, applied to an air conditioner, the air conditioner comprising a movable volute and a fixed volute, when the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner, and when the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner, characterized in that: The method comprises: Determine the target evaporator temperature according to the operation mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature; wherein the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operation modes is preset; Whether the movable volute has rotated to the desired position is determined according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

2. The method according to claim 1, characterized in that The corresponding relationship between the target evaporator temperature and the indoor ambient temperature and outdoor ambient temperature under different operation modes is preset, including: In cooling mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, and the evaporator temperature of the air conditioner after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in cooling mode; In the heating mode, the evaporator temperature of the air conditioner after running for a preset time at the same indoor ambient temperature and different outdoor ambient temperatures, as well as the evaporator temperature after running for a preset time at the same outdoor ambient temperature and different indoor ambient temperatures are detected, so as to obtain the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature in the heating mode.

3. The method according to claim 1, characterized in that Judging whether the movable volute has rotated to a certain position according to the operation mode, the actual evaporator temperature and the target evaporator temperature includes: After the air conditioner has been running for a preset time, the actual evaporator temperature is compared with the target evaporator temperature; According to the comparison result and the judgment strategy corresponding to the operation mode, it is judged whether the movable volute is rotated to the right position.

4. The method according to claim 3, characterized in that In the cooling mode, judging whether the movable volute is fully rotated according to the comparison result and the judgment strategy corresponding to the operation mode includes: If the actual evaporator temperature is lower than the target evaporator temperature, it is determined that the moving volute has not rotated to the desired position; If the actual evaporator temperature is greater than or equal to the target evaporator temperature, it is determined that the moving volute has rotated to the desired position.

5. The method according to claim 3, characterized in that: In the heating mode, judging whether the movable volute is fully rotated according to the comparison result and the judgment strategy corresponding to the operation mode includes: If the actual evaporator temperature is greater than the target evaporator temperature, it is determined that the moving volute has not rotated to the correct position; If the actual evaporator temperature is less than or equal to the target evaporator temperature, it is determined that the moving volute has rotated to the desired position.

6. The method according to claim 3, characterized in that In the refrigeration mode, after determining that the movable volute has not rotated to the correct position, the method further includes: Controlling the movable volute to reset, and then controlling the movable volute to rotate again; After a preset time, determining whether the actual evaporator temperature is greater than or equal to the target evaporator temperature; If yes, it is determined that the movable volute has rotated into place; If not, a fault is reported and the air conditioner is controlled to shut down.

7. The method according to claim 3, characterized in that In the heating mode, after determining that the movable volute has not rotated to the desired position, the method further includes: Controlling the movable volute to reset, and then controlling the movable volute to rotate again; After a preset time, determining whether the actual evaporator temperature is less than or equal to the target evaporator temperature; If yes, it is determined that the movable volute has rotated into place; If not, a fault is reported and the air conditioner is controlled to shut down.

8. The method according to claim 1, characterized in that: Before determining whether the movable volute has rotated to a certain position according to the operation mode, the actual evaporator temperature and the target evaporator temperature, the method further includes: The frequency of the compressor of the air conditioner is controlled to increase to an upper limit in a current operation mode.

9. A volute position detection device, characterized in that: The device comprises: A determination module, used to determine the target evaporator temperature according to the operation mode of the air conditioner, the indoor ambient temperature and the outdoor ambient temperature; wherein the corresponding relationship between the target evaporator temperature and the indoor ambient temperature and the outdoor ambient temperature under different operation modes is preset; The judging module is used to judge whether the movable volute has rotated into place according to the operation mode, the actual evaporator temperature and the target evaporator temperature.

10. An air conditioner, comprising a movable volute and a fixed volute, wherein when the movable volute rotates to a first position, air is discharged from a side air outlet of the air conditioner, and when the movable volute rotates to a second position, air is discharged from a lower air outlet of the air conditioner, wherein: The air conditioner also includes the volute position detection device as described in claim 8.

11. The air conditioner according to claim 10, characterized in that: The air conditioner is a duct type air conditioner.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

13. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 8.

Images