A vertical cabinet type household air conditioner indoor unit and control method thereof

Abstract

The present invention relates to the technical field of air conditioning, and discloses a vertical cabinet type household air conditioner indoor unit, comprising a cabinet body, an evaporator installed inside the cabinet body, an upper air cooling mechanism, a middle air cooling mechanism and a lower air cooling mechanism respectively arranged inside the cabinet body from top to bottom, the upper air cooling mechanism, the middle air cooling mechanism and the lower air cooling mechanism each comprising a power mechanism and a regulating component, a main controller arranged inside the cabinet body, the middle air cooling mechanism being connected to a remote controller, and the remote controller being electrically connected to the main controller. The present invention configures the air inlet mechanism and the air outlet mechanism of a traditional air conditioner into an upper air cooling mechanism and a lower air cooling mechanism both having air inlet and air outlet functions, so that the air conditioner can intelligently switch between a default state, a far wind state and a steady state, meeting the requirements of rapid cooling of a near area, accelerating the cooling speed of a far area and increasing the temperature during heat preservation, thereby greatly improving the cooling effect and user experience of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a vertical cabinet type household air conditioner indoor unit and a control method thereof. Background Art

[0002] With the improvement of living standards, various household appliances have entered our homes, such as refrigerators, washing machines, color TVs and air conditioners. Among them, air conditioners are indispensable appliances in summer. There are many types of air conditioners, among which cabinet air conditioners are widely used because of their longer blowing distance.

[0003] However, existing cabinet air conditioners still have some disadvantages during use. Most existing air inlets and outlets are fixed, meaning they are located at fixed heights. The direction of the cold air is adjusted by adjusting the angle of the air guide. Because the size of the air guide is limited by the volume of the air conditioner, the angle at which the cold air flows up and down through the air guide is limited. Consequently, in taller rooms, existing air conditioners often cause the cold air to blow directly at lower or higher positions. In hot summer days, if the cold air blows directly at a lower position, long-term exposure to the cold air can cause discomfort. If the cold air blows continuously at a higher position, the room cools down more slowly because it takes time for the cold air to fall. Furthermore, areas closer to the air conditioner cool down faster, while areas farther away cool down slower. Existing air conditioners are unable to increase the cooling rate at farther distances after achieving local cooling. Instead, they can only adjust the cooling distance of the cold air by adjusting the fan power, thereby accelerating the cooling effect at farther distances. However, this often consumes more electricity, increasing energy consumption. Summary of the Invention

[0004] In response to the shortcomings of the existing cabinet-type household air-conditioning indoor unit during use as mentioned in the background technology, the present invention provides a cabinet-type household air-conditioning indoor unit and a control method thereof, which have the advantages of intelligently controlling the air inlet and outlet, rapid local cooling, increased remote cooling speed and improved human comfort, thereby solving the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a vertical cabinet type household air-conditioner indoor unit, comprising a cabinet body, an evaporator is installed inside the cabinet body, and an upper air cooling mechanism, a middle air cooling mechanism and a lower air cooling mechanism are respectively provided inside the cabinet body from top to bottom, and the upper air cooling mechanism, the middle air cooling mechanism and the lower air cooling mechanism all include a power mechanism and a regulating component. A main controller is provided inside the cabinet body, the middle air cooling mechanism is connected to a remote control controller, the remote control controller is electrically connected to the main controller, and the main controller is electrically connected to an upper temperature sensor and a lower temperature sensor, the upper temperature sensor and the lower temperature sensor are symmetrically installed above and below the room, respectively, the upper temperature sensor and the lower temperature sensor are set as a temperature measuring sensor group, and the temperature measuring sensor group has at least two, the upper air cooling mechanism and the lower air cooling mechanism are respectively connected with two ends of the air duct in the evaporator, the middle air cooling mechanism is connected with both ends of the air duct in the evaporator, and a one-way valve is installed on the pipeline connecting the middle air cooling mechanism and the evaporator.

[0006] Preferably, the power mechanism includes an outer cover, a suction fan, an exhaust fan and a partition plate, the suction fan and the exhaust fan are both installed inside the outer cover, and a partition plate is provided inside the outer cover between the suction fan and the exhaust fan, the partition plate divides the outer cover into an air inlet chamber and an air outlet chamber, and the outer cover is connected to the air duct in the evaporator.

[0007] Preferably, the outer wall of the outer cover is connected to the inner wall of the cabinet, and the regulating component includes an air guide plate, an inner plate, a ventilation valve and an air plate motor. The two ends of the air guide plate are rotatably connected to the inner wall of the outer cover, and the air guide plate is connected to the air plate motor through a chain. The interior of the outer cover is provided with an inner plate located between the air guide plate and the suction fan and the exhaust fan. Ventilation holes are opened on the inner plate, and ventilation valves are installed in the ventilation holes. The ventilation valve and the air plate motor are electrically connected to the main controller.

[0008] Preferably, the upper air cooling mechanism has the same structure as the lower air cooling mechanism, and the middle air cooling mechanism also includes a power mechanism and a regulating component. The power mechanism of the middle air cooling mechanism includes an outer cover and an exhaust fan, and the wind plate motor of the middle air cooling mechanism is connected to a remote control controller.

[0009] Preferably, the main controller includes an acquisition unit, a first calculation unit, a second calculation unit, and a general driving unit.

[0010] The acquisition unit is used to obtain data from the upper temperature sensor and the lower temperature sensor of each temperature sensor group;

[0011] The first calculation unit is used to calculate the intra-group temperature difference between the upper temperature sensor and the lower temperature sensor of the same temperature sensor group, wherein the intra-group temperature difference is the difference between the upper temperature sensor and the lower temperature sensor of the same temperature sensor group;

[0012] The second calculation unit is used to calculate the external temperature difference value of the phase group temperature sensor group, and the external temperature difference value is the difference between the average values of the upper temperature sensor and the lower temperature sensor of the two temperature sensor groups;

[0013] The total driving unit includes an upper driving unit, a middle driving unit and a lower driving unit, and the upper driving unit, the middle driving unit and the lower driving unit respectively control the upper air cooling mechanism, the middle air cooling mechanism and the lower air cooling mechanism.

[0014] Preferably, the upper drive unit, the middle drive unit and the lower drive unit all include a fan drive module, a motor drive module and a valve drive module. The fan drive modules of the upper drive unit and the lower drive unit respectively control the suction fan and the exhaust fan of the upper air cooling mechanism and the lower air cooling mechanism, the fan drive module of the middle drive unit controls the exhaust fan of the middle air cooling mechanism, and the motor drive module and the valve drive module respectively control the air plate motors of the upper air cooling mechanism, the middle air cooling mechanism and the lower air cooling mechanism and the ventilation valves of the upper air cooling mechanism, the middle air cooling mechanism and the lower air cooling mechanism.

[0015] The fan drive module controls the start and stop of the suction fan and the exhaust fan;

[0016] The motor drive module controls the operating power of the fan motor;

[0017] The valve driving module controls the opening amount of the ventilation valve.

[0018] Preferably, a method for controlling an indoor unit of a cabinet-type household air conditioner comprises:

[0019] When the air conditioner is just started, the air conditioner is in a default state, wherein the suction fan of the upper air cooling mechanism is turned on and the exhaust fan of the upper air cooling mechanism is turned off, the suction fan of the lower air cooling mechanism is turned off and the exhaust fan of the lower air cooling mechanism is turned on, and the ventilation valve of the upper air cooling mechanism and the ventilation valve of the lower air cooling mechanism are both opened;

[0020] The upper temperature sensor and the lower temperature sensor of each temperature sensor group measure the real-time temperature at every preset time interval and transmit the measured real-time temperature value to the main controller;

[0021] When the real-time temperature values of the upper temperature sensor and the lower temperature sensor of a temperature sensor group close to the air conditioner indoor unit both reach the preset indoor temperature value and the intra-group temperature difference between the upper temperature sensor and the lower temperature sensor is less than the preset intra-group temperature difference threshold, and the external temperature difference of a temperature sensor group adjacent to the above temperature sensor group is greater than the preset external temperature difference threshold, the far wind state is triggered, and the far wind state is: the number of the ventilation valves opened is reduced;

[0022] When the temperature difference within each temperature sensor group is less than a preset temperature difference threshold within the group, and the temperature difference outside the group with the adjacent temperature sensor group is less than a preset temperature difference threshold outside the group, a steady state is triggered. The steady state is: the suction fan of the upper air cooling mechanism is turned off and the exhaust fan of the upper air cooling mechanism is turned on, and the suction fan of the lower air cooling mechanism is turned on and the exhaust fan of the lower air cooling mechanism is turned off;

[0023] The preset intra-group temperature difference threshold is the range of the temperature difference between the upper temperature sensor and the lower temperature sensor of each temperature sensor group;

[0024] The preset outer-group temperature difference threshold is a set range of outer-group temperature difference values of adjacent temperature measurement sensor groups.

[0025] Preferably, when the air conditioner indoor unit is in the default state, far wind state and steady state, the air plate motor adjusts its operating power according to the size of the temperature difference inside the group and the temperature difference outside the group. When the temperature difference inside the group or the temperature difference outside the group is large, the operating power of the air plate motor increases; when the temperature difference inside the group or the temperature difference outside the group is small, the operating power of the air plate motor decreases.

[0026] The present invention has the following beneficial effects:

[0027] 1. The present invention configures the air inlet and outlet mechanisms of a traditional air conditioner into upper and lower air cooling mechanisms, each with air inlet and air outlet functions, so that the air conditioner can intelligently switch between a default state, a far-wind state, and a constant state, thereby meeting the needs of rapid cooling in nearby areas, accelerating the cooling speed in far-field areas, and increasing the temperature during heat preservation, thereby greatly improving the cooling effect and user experience of the air conditioner.

[0028] 2. The present invention ensures the need for manual operation by arranging a middle air-cooling mechanism that can be manually controlled by remote control between the upper air-cooling mechanism and the lower air-cooling mechanism. The temporary needs of people can be additionally met by controlling the middle air-cooling mechanism, thereby improving the versatility of the air conditioner. In addition, the cooling effect of the upper air-cooling mechanism and the lower air-cooling mechanism can be compensated by adjusting the middle air-cooling mechanism, thereby further improving the cooling function of the air conditioner.

[0029] 3. The present invention measures the temperature in the room in real time through the upper temperature sensor and the lower temperature sensor, and controls the operating power of the wind plate motor according to the temperature, thereby achieving the purpose of adjusting the rotation speed of the air guide plate, adjusting the blowing speed of the cold air, and controlling the speed of the air flow in the room. Therefore, it can achieve the purpose of energy saving under the premise of ensuring the uniformity of the room temperature, thereby improving the energy-saving effect of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2It is a partial cross-sectional view of the present invention;

[0032] Figure 3 It is the front view of the present invention;

[0033] Figure 4 This is a block diagram of the main controller of the present invention.

[0034] In the figure: 1. Cabinet; 2. Evaporator; 3. Upper air cooling mechanism; 4. Middle air cooling mechanism; 5. Lower air cooling mechanism; 6. Power mechanism; 601. Outer cover; 602. Suction fan; 603. Exhaust fan; 604. Partition plate; 6020. Air inlet chamber; 6030. Air outlet chamber; 7. Control component; 701. Air guide plate; 702. Inner plate; 703. Ventilation valve; 704. Air plate motor; 8. Main controller; 801. Acquisition unit; 802. First calculation unit; 803. Second calculation unit; 804. Main drive unit; 8040. Upper drive unit; 8041. Middle drive unit; 8042. Lower drive unit; 840. Fan drive module; 841. Motor drive module; 842. Valve drive module; 9. Upper temperature sensor; 901. Lower temperature sensor; 10. Remote control; 11. One-way valve. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-4A vertical cabinet household air conditioner indoor unit includes a cabinet body 1, an evaporator 2 is installed inside the cabinet body 1, and an upper air cooling mechanism 3, a middle air cooling mechanism 4 and a lower air cooling mechanism 5 are respectively provided inside the cabinet body 1 from top to bottom. The upper air cooling mechanism 3, the middle air cooling mechanism 4 and the lower air cooling mechanism 5 all include a power mechanism 6 and a regulating component 7. A main controller 8 is provided inside the cabinet body 1, and the middle air cooling mechanism 4 is connected to a remote control controller 10. The remote control controller 10 is electrically connected to the main controller 8. The remote control controller 10 can be connected to an infrared remote controller used in the prior art and controlled by the infrared remote controller. The main controller 8 is electrically connected to an upper temperature sensor 9 and a lower temperature sensor 901. The upper temperature sensor 9 and the lower temperature sensor 901 are respectively Symmetrically installed above and below the room, that is, the upper temperature sensor 9 and the lower temperature sensor 901 are used to measure the temperature above and below the room respectively. The upper temperature sensor 9 and the lower temperature sensor 901 are set as a temperature sensor group. There are at least two temperature sensor groups. The number of temperature sensor groups should be set according to the size of the space, but there are at least two. The space can be divided into multiple areas by multiple temperature sensor groups, and the temperature of each area can be measured by the temperature sensor group. The upper air cooling mechanism 3 and the lower air cooling mechanism 5 are respectively connected to the two ends of the air duct in the evaporator 2, and the middle air cooling mechanism 4 is connected to both ends of the air duct in the evaporator 2. A one-way valve 11 is installed on the pipe connecting the middle air cooling mechanism 4 and the evaporator 2.

[0037] The heights of the upper air cooling mechanism 3, the middle air cooling mechanism 4 and the lower air cooling mechanism 5 are roughly divided into the lower, middle and upper parts of the human body, that is, the upper air cooling mechanism 3 can be below the legs of the human body, the middle air cooling mechanism 4 is located at the height from the legs to the head, and the lower air cooling mechanism 5 is located above the head. In summer, when the air conditioner is used to cool down the room, generally, when the air conditioner is just started, in order to make the human body feel comfortable as soon as possible, the low space is cooled down first. On the one hand, it can avoid the cold wind blowing directly on the upper half of the human body and causing physical discomfort. On the other hand, since the cold air will not flow upward, it can reduce heat dissipation and cool down quickly. At the same time, it first greatly cools down in a small range close to the air conditioner, so that the user can quickly cool down in a position close to the air conditioner in hot weather, thereby improving the user's comfort; and the upper air cooling mechanism 3 and the lower air cooling mechanism 5 of the present application are intelligently controlled by the main controller 8 of the air conditioner, and the middle air cooling mechanism 4 can be controlled by a person operating an infrared remote control, thereby realizing manual and intelligent operation.

[0038] The power mechanism 6 includes an outer cover 601, a suction fan 602, an exhaust fan 603 and a partition plate 604. The suction fan 602 and the exhaust fan 603 are both installed inside the outer cover 601. The interior of the outer cover 601 is provided with a partition plate 604 located between the suction fan 602 and the exhaust fan 603. The partition plate 604 divides the outer cover 601 into an air inlet chamber 6020 and an air outlet chamber 6030. The outer cover 601 is connected to the air duct in the evaporator 2.

[0039] The outer wall of the outer cover 601 is connected to the inner wall of the cabinet 1, and the control component 7 includes an air guide plate 701, an inner plate 702, a ventilation valve 703 and an air plate motor 704. The two ends of the air guide plate 701 are rotatably connected to the inner wall of the outer cover 601, and the air guide plate 701 is connected to the air plate motor 704 through a chain. The interior of the outer cover 601 is provided with an inner plate 702 located between the air guide plate 701 and the suction fan 602 and the exhaust fan 603. Ventilation holes are opened on the inner plate 702, and ventilation valves 703 are installed in the ventilation holes. The ventilation valves 703 and the air plate motor 704 are electrically connected to the main controller 8.

[0040] The upper air cooling mechanism 3 has the same structure as the lower air cooling mechanism 5 , and the middle air cooling mechanism 4 also includes a power mechanism 6 and a control component 7 . The power mechanism 6 of the middle air cooling mechanism 4 includes an outer cover 601 and an exhaust fan 603 , and the wind plate motor 704 of the middle air cooling mechanism 4 is connected to the remote control controller 10 .

[0041] Only one of the suction fan 602 and exhaust fan 603 of the same group can be turned on at the same time. When the suction fan 602 of the upper air-cooling mechanism 3 is turned on and the exhaust fan 603 is turned off, the suction fan 602 of the lower air-cooling mechanism 5 is turned off and the exhaust fan 603 is turned on, a form of upper suction and lower blowing is formed, which can quickly cool down the lower part of the space; when the suction fan 602 of the upper air-cooling mechanism 3 is turned off and the exhaust fan 603 is turned on, the suction fan 602 of the lower air-cooling mechanism 5 is turned on and the exhaust fan 603 is turned off, a form of lower suction and upper blowing is formed, which can keep the space warm after cooling is completed, and because the cold air outlet is higher than the human body, the human body will not feel uncomfortable due to a large amount of cold air blowing directly within the space at the height of the human body, thereby improving the comfort of the human body during heat preservation; and the middle air-cooling mechanism 4 only includes the exhaust fan 603, but does not include the suction fan 602. The middle air-cooling mechanism 4 only sprays cold air outward for cooling, so that the temperature of the space at the middle height of the human body is more suitable.

[0042] The main controller 8 includes an acquisition unit 801, a first calculation unit 802, a second calculation unit 803, and a general driving unit 804.

[0043] The acquisition unit 801 is used to obtain data from the upper temperature sensor 9 and the lower temperature sensor 901 of each temperature sensor group;

[0044] The first calculation unit 802 is used to calculate the intra-group temperature difference between the upper temperature sensor 9 and the lower temperature sensor 901 of the same temperature sensor group. The intra-group temperature difference is the difference between the upper temperature sensor 9 and the lower temperature sensor 901 of the same temperature sensor group.

[0045] The second calculation unit 803 is used to calculate the external temperature difference of the phase group temperature sensor group, where the external temperature difference is the difference between the average values of the upper temperature sensor 9 and the lower temperature sensor 901 of the two temperature sensor groups;

[0046] The main driving unit 804 includes an upper driving unit 8040, a middle driving unit 8041 and a lower driving unit 8042. The upper driving unit 8040, the middle driving unit 8041 and the lower driving unit 8042 respectively control the upper air cooling mechanism 3, the middle air cooling mechanism 4 and the lower air cooling mechanism 5.

[0047] The upper drive unit 8040, the middle drive unit 8041 and the lower drive unit 8042 all include a fan drive module 840, a motor drive module 841 and a valve drive module 842. The fan drive modules 840 of the upper drive unit 8040 and the lower drive unit 8042 respectively control the suction fan 602 and the exhaust fan 603 of the upper air cooling mechanism 3 and the lower air cooling mechanism 5. The fan drive module 840 of the middle drive unit 8041 controls the exhaust fan 603 of the middle air cooling mechanism 4. The motor drive module 841 and the valve drive module 842 respectively control the air plate motor 704 of the upper air cooling mechanism 3, the middle air cooling mechanism 4 and the lower air cooling mechanism 5 and the ventilation valve 703 of the upper air cooling mechanism 3, the middle air cooling mechanism 4 and the lower air cooling mechanism 5.

[0048] The fan drive module 840 controls the start and stop of the suction fan 602 and the exhaust fan 603;

[0049] The motor drive module 841 controls the operating power of the fan motor 704; the greater the operating power, the faster the rotation speed of the fan motor 704, the higher the frequency of rotation of the air guide plate 701, and the wind flowing out of the air guide plate 701 is stirred by the rotation of the air guide plate 701, and the flow direction of the wind is constantly changing, thereby promoting the flow of wind in the space, accelerating the heat exchange in the space, and improving the uniformity of the temperature in the space, thereby improving the cooling effect in the space; when the air flow in the room is faster, the heat exchange is faster, and the temperature is more uniform, the operating power of the fan motor 704 can be reduced to achieve the purpose of energy saving and emission reduction. Therefore, the operating power of the fan motor 704 is changed in real time, which can reduce the consumption of electricity while ensuring the cooling effect;

[0050] The valve drive module 842 controls the number of ventilation valves 703 opened. When the power of the suction fan 602 remains unchanged, the amount of air sucked by the suction fan 602 remains unchanged. When the number of ventilation valves 703 decreases, the static pressure energy of the wind in the outer cover 601 is converted into kinetic energy, which increases the flow rate of the wind and the distance of the jet. This not only increases the flow rate of air in the space, accelerates heat exchange in the space, and speeds up the cooling of the space, but also allows areas farther away from the air conditioner to quickly obtain cool air with a lower temperature, further promoting the cooling speed and improving the cooling effect in the farther area.

[0051] The cabinet-type household air conditioner indoor unit and its control method include:

[0052] When the air conditioner is just started, the air conditioner is in a default state, which is: the suction fan 602 of the upper air cooling mechanism 3 is turned on and the exhaust fan 603 of the upper air cooling mechanism 3 is turned off, the suction fan 602 of the lower air cooling mechanism 5 is turned off and the exhaust fan 603 of the lower air cooling mechanism 5 is turned on, and the ventilation valve 703 of the upper air cooling mechanism 3 and the ventilation valve 703 of the lower air cooling mechanism 5 are both open;

[0053] The upper temperature sensor 9 and the lower temperature sensor 901 of each temperature sensor group measure the real-time temperature at every preset time interval and transmit the measured real-time temperature value to the main controller 8;

[0054] When the real-time temperature values of the upper temperature sensor 9 and the lower temperature sensor 901 of a temperature sensor group close to the indoor unit of the air conditioner both reach the preset indoor temperature value, and the intra-group temperature difference value between the upper temperature sensor 9 and the lower temperature sensor 901 of this group is less than the preset intra-group temperature difference threshold, and the external temperature difference value of a temperature sensor group adjacent to the above temperature sensor group is greater than the preset external temperature difference threshold, the far wind state is triggered. The far wind state is: the number of ventilation valves 703 opened is reduced; the number of ventilation valves 703 opened is reduced compared to the number in the default state. In the default state, all ventilation valves 703 should be opened to speed up cooling.

[0055] When the temperature difference within each temperature sensor group is less than the preset temperature difference threshold within the group, and the temperature difference outside the group with the adjacent temperature sensor group is less than the preset temperature difference threshold outside the group, a steady state is triggered. The steady state is: the suction fan 602 of the upper air cooling mechanism 3 is turned off and the exhaust fan 603 of the upper air cooling mechanism 3 is turned on, the suction fan 602 of the lower air cooling mechanism 5 is turned on and the exhaust fan 603 of the lower air cooling mechanism 5 is turned off; in the steady state, the entire space has reached the preset indoor temperature. In order to maintain this temperature, the air conditioner needs to be turned on continuously; since rapid cooling is not required at this time, the air conditioner is adjusted to an upper exhaust and lower air intake mode. The cold air blown out from the upper air cooling mechanism 3 of the air conditioner can spontaneously promote air flow in the space due to its own downward descent, which can prevent the human body from feeling too cold. At the same time, the preset temperature difference threshold within the group is the range of the temperature difference between the upper temperature sensor 9 and the lower temperature sensor 901 of each temperature sensor group;

[0056] The preset external temperature difference threshold is the range of the external temperature difference value of the set phase group temperature sensor group;

[0057] The preset indoor temperature value is the temperature value of the air conditioner set in the prior art;

[0058] In this application, multiple temperature sensor groups are arranged in the order of proximity to the air conditioner from near to far, and multiple areas divided by the multiple temperature sensor groups are cooled in the order of proximity to the air conditioner from near to far, and the calculation of the temperature difference outside the group is the calculated value between the temperature sensor groups of two adjacent areas;

[0059] The temperature difference within the group is used to indicate whether the temperature of the current area is uniform. When the temperature difference within the group is less than the preset temperature difference threshold within the group, it indicates that the temperature of the upper and lower areas of the area is uniform. When the measurement values of the upper temperature sensor 9 and the lower temperature sensor 901 in the area reach the preset indoor temperature, the cooling effect of the area is the best. At this time, the temperature value of the farther area can be obtained, the temperature difference outside the group can be calculated, and the farther area can be cooled or the cooling effect of the farther area can be increased.

[0060] Therefore, the workload of multiple temperature sensor groups in this application increases from small to large, and the amount of calculation also increases from small to large, so the amount of calculation can be reduced to a certain extent, and the sensitivity of the control of the air conditioner can be improved;

[0061] The control method of the indoor unit of the vertical cabinet household air conditioner is as follows: when the indoor unit of the air conditioner is in the default state, the far wind state and the steady state, the air plate motor 704 adjusts its operating power according to the size of the temperature difference within the group and the temperature difference outside the group. When the temperature difference within the group or the temperature difference outside the group is large, the operating power of the air plate motor 704 increases; when the temperature difference within the group or the temperature difference outside the group is small, the operating power of the air plate motor 704 decreases.

[0062] In addition, the remote control controller 10 connected to the wind plate motor 704 of the middle air cooling mechanism 4 is not only used to receive the signal of the infrared remote control, but also to set the rotation speed and angle of the wind plate motor 704 through manual remote control. Moreover, after a period of time, that is, when the air conditioner enters the far wind state, the remote control controller 10 autonomously adjusts the rotation of the wind plate motor 704 so that the air guide plate 701 rotates to a horizontal state. In the far wind state, the wind guide plate 701 can reduce the obstruction of the wind to the wind, increase the distance of the wind ejected through the middle air cooling mechanism 4, and effectively promote the cooling speed and cooling effect in farther areas.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A control method for an indoor unit of a cabinet-type household air conditioner, comprising a cabinet body (1), an evaporator (2) being installed inside the cabinet body (1), characterized in that: The cabinet (1) is provided with an upper air cooling mechanism (3), a middle air cooling mechanism (4) and a lower air cooling mechanism (5) from top to bottom, respectively. The upper air cooling mechanism (3), the middle air cooling mechanism (4) and the lower air cooling mechanism (5) all include a power mechanism (6) and a regulating component (7). The cabinet (1) is provided with a main controller (8). The middle air cooling mechanism (4) is connected to a remote controller (10). The remote controller (10) is electrically connected to the main controller (8). The main controller (8) is electrically connected to an upper temperature sensor (9) and a lower temperature sensor (90 1), the upper temperature sensor (9) and the lower temperature sensor (901) are symmetrically installed above and below the room, respectively, the upper temperature sensor (9) and the lower temperature sensor (901) are set as a temperature sensor group, and the temperature sensor group has at least two, the upper air cooling mechanism (3) and the lower air cooling mechanism (5) are respectively connected to the two ends of the air duct in the evaporator (2), the middle air cooling mechanism (4) is connected to both ends of the air duct in the evaporator (2), and a one-way valve (11) is installed on the pipe connecting the middle air cooling mechanism (4) and the evaporator (2); The power mechanism (6) comprises an outer cover (601), a suction fan (602), an exhaust fan (603) and a partition plate (604); the suction fan (602) and the exhaust fan (603) are both installed inside the outer cover (601); a partition plate (604) is provided inside the outer cover (601) and is located between the suction fan (602) and the exhaust fan (603); the partition plate (604) divides the outer cover (601) into an air inlet chamber (6020) and an air outlet chamber (6030); the outer cover (601) is connected to the air duct in the evaporator (2); The outer wall of the outer cover (601) is connected to the inner wall of the cabinet (1); the regulating component (7) comprises an air guide plate (701), an inner plate (702), a ventilation valve (703) and an air plate motor (704); both ends of the air guide plate (701) are rotatably connected to the inner wall of the outer cover (601); the air guide plate (701) is transmission-connected to the air plate motor (704) via a chain; an inner plate (702) is provided inside the outer cover (601) and is located between the air guide plate (701) and the suction fan (602) and the exhaust fan (603); a ventilation hole is provided on the inner plate (702); a ventilation valve (703) is installed in the ventilation hole; the ventilation valve (703) and the air plate motor (704) are both electrically connected to the main controller (8); The main controller (8) includes a collection unit (801), a first calculation unit (802), a second calculation unit (803), and a general driving unit (804); The acquisition unit (801) is used to acquire data from the upper temperature sensor (9) and the lower temperature sensor (901) of each temperature sensor group; The first calculation unit (802) is used to calculate the intra-group temperature difference between the upper temperature sensor (9) and the lower temperature sensor (901) of the same temperature sensor group, wherein the intra-group temperature difference is the difference between the upper temperature sensor (9) and the lower temperature sensor (901) of the same temperature sensor group; The second calculation unit (803) is used to calculate the external temperature difference value of the phase group temperature sensor group, and the external temperature difference value is the difference between the average values of the upper temperature sensor (9) and the lower temperature sensor (901) of the two temperature sensor groups; The total drive unit (804) comprises an upper drive unit (8040), a middle drive unit (8041) and a lower drive unit (8042), wherein the upper drive unit (8040), the middle drive unit (8041) and the lower drive unit (8042) respectively control an upper air cooling mechanism (3), a middle air cooling mechanism (4) and a lower air cooling mechanism (5); The upper drive unit (8040), the middle drive unit (8041) and the lower drive unit (8042) all include a fan drive module (840), a motor drive module (841) and a valve drive module (842); the fan drive modules (840) of the upper drive unit (8040) and the lower drive unit (8042) respectively control the suction fan (602) and the exhaust fan (603) of the upper air cooling mechanism (3) and the lower air cooling mechanism (5); the fan drive module (840) of the middle drive unit (8041) controls the exhaust fan (603) of the middle air cooling mechanism (4); the motor drive module (841) and the valve drive module (842) respectively control the air plate motor (704) of the upper air cooling mechanism (3), the middle air cooling mechanism (4) and the lower air cooling mechanism (5) and the ventilation valve (703) of the upper air cooling mechanism (3), the middle air cooling mechanism (4) and the lower air cooling mechanism (5); The fan drive module (840) controls the start and stop of the suction fan (602) and the exhaust fan (603); The motor drive module (841) controls the operating power of the wind plate motor (704); The valve driving module (842) controls the number of openings of the ventilation valve (703); The method comprises: When the air conditioner indoor unit is just started, the air conditioner indoor unit is in a default state, and the default state is: the suction fan (602) of the upper air cooling mechanism (3) is turned on and the exhaust fan (603) of the upper air cooling mechanism (3) is turned off, the suction fan (602) of the lower air cooling mechanism (5) is turned off and the exhaust fan (603) of the lower air cooling mechanism (5) is turned on, and the ventilation valve (703) of the upper air cooling mechanism (3) and the ventilation valve (703) of the lower air cooling mechanism (5) are both opened; The upper temperature sensor (9) and the lower temperature sensor (901) of each temperature sensor group measure the real-time temperature at every preset time interval and transmit the measured real-time temperature value to the main controller (8); When the real-time temperature values of the upper temperature sensor (9) and the lower temperature sensor (901) of a temperature sensor group close to the air conditioner indoor unit both reach the preset indoor temperature value and the intra-group temperature difference value between the upper temperature sensor (9) and the lower temperature sensor (901) is less than the preset intra-group temperature difference threshold, and the external temperature difference value of a temperature sensor group adjacent to the above temperature sensor group is greater than the preset external temperature difference threshold, a far wind state is triggered, and the far wind state is: the number of the ventilation valves (703) opened is reduced; When the temperature difference within each temperature sensor group is less than a preset temperature difference threshold within the group, and the temperature difference outside the group with the adjacent temperature sensor group is less than the preset temperature difference threshold outside the group, a steady state is triggered, wherein the steady state is: the suction fan (602) of the upper air cooling mechanism (3) is turned off and the exhaust fan (603) of the upper air cooling mechanism (3) is turned on, and the suction fan (602) of the lower air cooling mechanism (5) is turned on and the exhaust fan (603) of the lower air cooling mechanism (5) is turned off; The preset intra-group temperature difference threshold is a range of intra-group temperature difference values between the upper temperature sensor (9) and the lower temperature sensor (901) of each temperature sensor group; The preset outer-group temperature difference threshold is a set range of outer-group temperature difference values of adjacent temperature measurement sensor groups.

2. The control method of a cabinet-type household air conditioner indoor unit according to claim 1, characterized in that: The upper air cooling mechanism (3) and the lower air cooling mechanism (5) have the same structure. The middle air cooling mechanism (4) also includes a power mechanism (6) and a control component (7). The power mechanism (6) of the middle air cooling mechanism (4) includes an outer cover (601) and an exhaust fan (603). The air plate motor (704) of the middle air cooling mechanism (4) is connected to a remote controller (10).

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