Air conditioner and control method thereof

Abstract

According to the air conditioner and the control method thereof, the upper air opening and the lower air opening are formed in the shell, so that the air conditioner is provided with the two air inlets and outlets, and the air conditioner has the upper air outlet mode and the lower air outlet mode. According to the embodiment, the lower air outlet mode can be started when the air conditioner heats, so that hot air accumulated at the top is sucked into the upper air opening and sent to the indoor bottom through the lower air opening, and the upper air outlet mode can also be started when the air conditioner refrigerates, so that cold air accumulated at the bottom is sucked into the lower air opening and sent to the indoor top through the upper air opening. Therefore, the utilization rate of energy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner and a control method thereof. Background Art

[0002] When the air conditioner is turned on, in order to improve the comfort of air supply, the upper air outlet is usually used in cooling mode, and the lower air outlet is used in heating mode. This is because the density of cold air is large, and after the upper air outlet is used, it is sent to the top of the room and then sinks, and gradually accumulates at the bottom of the room, while the density of hot air is small, and after the lower air outlet is used, it is sent to the bottom of the room and then floats up, and gradually accumulates at the top of the room, which can meet the user's air supply needs in a short time.

[0003] However, after such an air conditioner has been running for a long time, temperature stratification will form indoors, which will cause a temperature difference between the air accumulated at the bottom (or top) of the room and the air at the top (or bottom) when cooling or heating. When heating, the accumulated air will directly enter from the air inlet of the air conditioner. At this time, the air conditioner mistakenly thinks that the indoor temperature has reached the preset temperature, and stops heating. However, the temperature at the bottom of the room has not reached the preset value. When cooling, when the air at the top of the room has not reached the preset temperature, the air conditioner will continue to cool, and the cold air will continue to sink, causing the temperature of the air accumulated at the bottom of the room to be lower than the preset temperature when the air temperature at the top reaches the preset temperature. At this time, neither the hot air accumulated at the top during heating nor the cold air accumulated at the bottom during cooling is effectively utilized, resulting in a waste of energy. Summary of the invention

[0004] The invention provides an air conditioner and a control method thereof, aiming to solve the problem of energy waste caused by the existing air outlet mode.

[0005] An embodiment of the present invention provides an air conditioner, comprising a shell and a fan arranged in the shell, the shell being provided with an upper air inlet and a lower air inlet, the fan being located between the upper air inlet and the lower air inlet, the inner wall of the shell and two sides of the fan forming a first air duct and a second air duct, the first air duct being provided with a first volute tongue that can be swung out or rotated back and a spoiler that can be swung out or rotated back simultaneously with the first volute tongue, the spoiler and the first volute tongue being located at different positions of the first air duct, the second air duct being provided with a second volute tongue that can be swung out or rotated back, and when one of the first volute tongue and the second volute tongue is swung out, the other of the first volute tongue and the second volute tongue rotates back.

[0006] Specifically, when the air conditioner is in the up-air outlet mode, the first volute tongue and the spoiler are in the swiveled-out state, and the second volute tongue is in the swiveled-in state; when the air conditioner is in the down-air outlet mode, the first volute tongue and the spoiler are in the swiveled-in state, and the second volute tongue is in the swiveled-out state.

[0007] Specifically, the air conditioner further comprises a fixed volute tongue arranged in the shell, and the first volute tongue is connected with the fixed volute tongue to form a closed area when the first volute tongue is rotated out, and the first volute tongue is arranged above the first air duct relative to the spoiler.

[0008] Specifically, when the second volute tongue is rotated out, a gap between an end of the second volute tongue close to the downwind outlet and the fan is larger than a gap between an end of the second volute tongue away from the downwind outlet and the fan.

[0009] Specifically, the shell includes a first volute and a second volute, the first volute and the second volute are arranged on both sides of the fan, the first volute and the fan are spaced apart to form the first air duct, and the second volute and the fan are spaced apart to form the second air duct.

[0010] Specifically, the inner wall of the first volute is provided with a groove, the spoiler is installed in the groove, and there is a gap between the spoiler and the groove.

[0011] Specifically, the upper air outlet is provided with an upper air guide component that can be opened and closed, and the upper air guide component can adjust the opening of the upper air outlet when opening and closing. The lower air outlet is provided with a lower air guide component that can be opened and closed, and the lower air guide component can adjust the opening of the lower air outlet when opening and closing.

[0012] Specifically, the lower air guide assembly includes a first lower air guide plate and a second lower air guide plate. In the lower air outlet mode, the second lower air guide plate is located at the front end of the air outlet direction relative to the first lower air guide plate. The first lower air guide plate opens to a continuous position forming a continuous volute structure with the first volute, and the second lower air guide plate can be opened to a vertical position.

[0013] The embodiment of the present invention further provides a control method, which is applied to the air conditioner as described above, comprising:

[0014] Confirm the operating mode of the air conditioner;

[0015] If the operation mode of the air conditioner is the upper air outlet mode, the first volute tongue and the spoiler are controlled to rotate out, and the second volute tongue is controlled to rotate back;

[0016] If the operation mode of the air conditioner is the downward air outlet mode, the first volute tongue and the spoiler are controlled to rotate back, and the second volute tongue is controlled to rotate out.

[0017] Specifically, the control method further includes:

[0018] If the operation mode of the air conditioner is the upper air outlet mode, the upper air guide component is controlled to be opened, and the lower air guide component is controlled to be opened, and the opening degree of the lower air outlet is greater than the opening degree of the upper air outlet;

[0019] If the operation mode of the air conditioner is the lower air outlet mode, the upper air guide component is controlled to be opened, and the lower air guide component is controlled to be opened, and the opening degree of the upper air outlet is greater than the opening degree of the lower air outlet.

[0020] The embodiment of the present invention provides an air conditioner and a control method thereof. By arranging an upper air vent and a lower air vent on a housing, the air conditioner has two air inlets and outlets, thereby enabling the air conditioner to have an upper air outlet mode and a lower air outlet mode. In this embodiment, when the air conditioner is heating, the lower air outlet mode can be turned on, so that the hot air accumulated at the top is sucked into the upper air vent and sent to the bottom of the room through the lower air vent. When the air conditioner is cooling, the upper air outlet mode can be turned on, so that the cold air accumulated at the bottom is sucked into the lower air vent and sent to the top of the room through the upper air vent, thereby improving the utilization rate of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the internal structure of an air conditioner provided in an embodiment of the present invention Figure 1 ;

[0023] Figure 2 A schematic diagram of the internal structure of an air conditioner provided in an embodiment of the present invention Figure 2 ;

[0024] Figure 3 A schematic diagram of the internal structure of an air conditioner provided in an embodiment of the present invention Figure 3 ;

[0025] Figure 4 A schematic diagram of the internal structure of an air conditioner provided in an embodiment of the present invention Figure 4 ;

[0026] Figure 5 A schematic diagram of an air flow path of an air conditioner in a top air outlet mode provided by an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of an air flow path of an air conditioner in a downward air outlet mode provided by an embodiment of the present invention Figure 1 ;

[0028] Figure 7 A schematic diagram of an air flow path of an air conditioner in a downward air outlet mode provided by an embodiment of the present invention Figure 2 ;

[0029] Figure 8 A flow chart of a method for controlling an air conditioner provided by an embodiment of the present invention Figure 1 ;

[0030] Fig. 9 A flow chart of a method for controlling an air conditioner provided by an embodiment of the present invention Figure 2 .

[0031] Description of the symbols in the figure:

[0032] 1. Shell; 1a. First volute; 1b. Second volute; 11. Groove; 2. Fan; 3a. Upper air outlet; 3b. Lower air outlet; 4a. First air duct; 4b. Second air duct; 5. First volute tongue; 6. Spoiler; 7. Second volute tongue; 8. Fixed volute tongue; 9. Upper air guide assembly; 9a. First upper air guide plate; 9b. Second upper air guide plate; 10. Lower air guide assembly; 10a. First lower air guide plate; 10b. Second lower air guide plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0035] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0036] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] See also Figure 1-3An embodiment of the present invention provides an air conditioner, comprising a shell 1 and a fan 2 arranged in the shell 1, the shell 1 is provided with an upper air port 3a and a lower air port 3b, the fan 2 is located between the upper air port 3a and the lower air port 3b, the inner wall of the shell 1 and the two sides of the fan 2 form a first air duct 4a and a second air duct 4b, the first air duct 4a is provided with a first volute tongue 5 that can be rotated out or rotated back and a spoiler 6 that is rotated out or rotated back with the first volute tongue 5, the spoiler 6 and the first volute tongue 5 are located at different positions of the first air duct 4a, the second air duct 4b is provided with a second volute tongue 7 that can be rotated out or rotated back, when one of the first volute tongue 5 and the second volute tongue 7 is rotated out, the other of the first volute tongue 5 and the second volute tongue 7 is rotated back.

[0038] In this embodiment, the upper air vent 3a and the lower air vent 3b are the air inlet and outlet of the air conditioner, that is, the upper air vent 3a and the lower air vent 3b can be used as both air inlets and air outlets, but the two cannot be used as air inlets or air outlets at the same time. That is to say, when one of the upper air vent 3a and the lower air vent 3b is an air inlet, the other one of the upper air vent 3a and the lower air vent 3b is an air outlet. This arrangement enables the air conditioner to achieve upper air outlet and lower air outlet, so that the air conditioner has an upper air outlet mode and a lower air outlet mode.

[0039] When the air conditioner is working, whether it is the upper air outlet mode or the lower air outlet mode, it is necessary to ensure that the air flows from one air outlet to another air outlet, and the fan 2 is located between the upper air outlet 3a and the lower air outlet 3b. When the air enters the interior of the air conditioner from an air outlet, under the action of the fan 2, it will pass through one of the air ducts and then reach the other air outlet, but some air will still pass through one air duct and then enter the other air duct, and finally flow out from the entered air outlet. This part of the air cannot flow to the required air outlet, so that the air volume of the corresponding air outlet serving as the air outlet is reduced. Therefore, it is necessary to provide a first volute tongue 5 and a spoiler 6 that can be swung out or rotated in the first air duct 4a, which are used to swivel out or rotate in a specific operating mode to change the flow direction of the air in the first air duct 4a, and to provide a second volute tongue 7 that can be swung out or rotated in the second air duct 4b, which is used to change the flow direction of the air in the second air duct 4b in a specific operating mode, so that the air enters the interior of the air conditioner from one of the air outlets and passes through the corresponding air duct, and then directly flows out from the other air outlet. Among them, when the fan 2 is working, it rotates counterclockwise.

[0040] In the prior art, the use of the existing air outlet method will cause hot air to accumulate at the top during heating and cold air to accumulate at the bottom during cooling. Therefore, in this embodiment, when the air conditioner is heating, the lower air outlet mode can be turned on, so that the hot air accumulated at the top is sucked into the upper air port 3a and sent to the bottom of the room through the lower air port 3b. When the air conditioner is cooling, the upper air outlet mode can be turned on, so that the cold air accumulated at the bottom is sucked into the lower air port 3b and sent to the top of the room through the upper air port 3a, thereby improving the energy utilization rate.

[0041] Specifically, when the air conditioner is in the up-air outlet mode, the first volute tongue 5 and the spoiler 6 are in the swiveled-out state, and the second volute tongue 7 is in the swiveled-in state; when the air conditioner is in the down-air outlet mode, the first volute tongue 5 and the spoiler 6 are in the swiveled-in state, and the second volute tongue 7 is in the swiveled-out state.

[0042] In this embodiment, Figure 1 As shown, when the air conditioner is in the upper air outlet mode, air enters from the lower air outlet 3b, and under the action of the fan 2, flows to the second air duct 4b. At this time, the second volute tongue 7 is in a rotated state, that is, the second volute tongue 7 is close to the second volute case 1b, so that the second air duct 4b is in a connected state. In order to make the air flow smoothly from the second air duct 4b to the upper air outlet 3a, the first volute tongue 5 needs to be rotated out, that is, the first volute tongue 5 is close to the fan 2 and has a small gap, so that the first air duct 4a is in a large-area blocked state, but a small part of the air can still enter the first air duct 4a from the small gap between the first volute tongue 5 and the fan 2. In order to guide this part of the air in the direction of the upper air outlet 3a, the spoiler 6 needs to be rotated out, thereby blocking the air entering the first air duct 4a and preventing it from flowing to the lower air outlet 3b, and then flowing toward the upper air outlet 3a under the action of the fan 2 and the spoiler 6. The flow path can be referred to Figure 5 .

[0043] like Figure 2 and 3 As shown, when the air conditioner is in the downflow mode, air enters from the upper air outlet 3a, and under the action of the fan 2, flows to the first air duct 4a. At this time, the first volute tongue 5 and the spoiler 6 are in a rotating state, that is, the first volute tongue 5 and the spoiler 6 are close to the first volute 1a, so that the first air duct 4a is in a connected state. In order to make the air flow smoothly from the first air duct 4a to the downflow outlet 3b, the second volute tongue 7 needs to be rotated out, that is, the second volute tongue 7 is close to the fan 2 and has a small gap, so that the second air duct 4b is in a large-area blocked state, but a small part Some air can still enter the second air duct 4b from the small gap between the second volute tongue 7 and the fan 2. In order to guide this part of air to the direction of the downwind outlet 3b, it is necessary to improve the structure of the second volute tongue 7 so that the air cannot flow to the upwind outlet 3a. The specific improvement can be to set an arc structure or a broken line structure at the end of the second volute tongue 7 away from the downwind outlet 3b, so as to block the air entering the second air duct 4b, and then the air flows towards the downwind outlet 3b under the action of the fan 2 and the spoiler 6. The flow path can be referred to Figure 6 and 7 .

[0044] Specifically, Figure 1 As shown, the air conditioner also includes a fixed volute tongue 8 arranged in the shell 1. When the first volute tongue 5 is rotated out, it is connected with the fixed volute tongue 8 to form a closed area. The first volute tongue 5 is arranged above the first air duct 4a relative to the spoiler 6.

[0045] In this embodiment, when the air conditioner is in the upper air outlet mode, in order to make the first air duct 4a present a tighter blocking state, a fixed volute tongue 8 can be set in the housing 1, preferably at a position close to the first air duct 4a, so that when the first volute tongue 5 is rotated out, the rotated end can contact the fixed volute tongue 8, and the first volute tongue 5 and the fixed volute tongue 8 form a closed area after contact, and the air cannot enter the first air duct 4a from the connection between the first volute tongue 5 and the fixed volute tongue 8, but there is a small gap between the fixed volute tongue 8 and the fan 2, and some air will enter the first air duct 4a from the gap. At this time, the spoiler 6 needs to be opened to block this part of the air. It should be noted that the first volute tongue 5 and the spoiler 6 are in a state of being rotated out or rotated back at the same time, and the two cooperate with each other to achieve the blocking of the first air duct 4a.

[0046] Specifically, Figure 2 and Figure 3 As shown, when the second volute tongue 7 is rotated out, the gap between the end of the second volute tongue 7 close to the downwind outlet 3b and the fan 2 is larger than the gap between the end of the second volute tongue 7 away from the downwind outlet 3b and the fan 2.

[0047] In this embodiment, when the air conditioner is in the downwind mode, the second volute tongue 7 is rotated out, and the second volute tongue 7 is close to the fan 2 and has a small gap. A small amount of air can still enter the second air duct 4b from the small gap between the second volute tongue 7 and the fan 2. In order to guide this part of the air in the direction of the downwind outlet 3b, the gap between the end of the second volute tongue 7 close to the downwind outlet 3b and the fan 2 can be set to be larger, and the gap between the end of the second volute tongue 7 away from the downwind outlet 3b and the fan 2 can be set to be smaller, so that although the air can enter the second air duct 4b from the end of the second volute tongue 7 close to the downwind outlet 3b, it cannot flow toward the upwind outlet 3a, so that the airflow between the second volute tongue 7 and the impeller of the fan 2 is pressed into the inside of the impeller, thereby forcing the airflow to form a backflow inside the impeller, thereby forming an eccentric vortex, that is, the eccentric vortex is near the second volute tongue 7.

[0048] As for setting a smaller gap between the end of the second volute tongue 7 away from the downwind outlet 3b and the fan 2, the aforementioned embodiment can be referred to, and the end of the second volute tongue 7 away from the downwind outlet 3b can be set with an arc structure or a broken line structure, so as to block the air entering the second air duct 4b, and then flow toward the downwind outlet 3b under the action of the fan 2 and the spoiler 6. Among them, the gap between the end of the second volute tongue 7 close to the downwind outlet 3b and the fan 2 can be set to 5-8mm, and the gap between the end of the second volute tongue 7 away from the downwind outlet 3b and the fan 2 can be set to 4-5mm.

[0049] Specifically, Figure 1-3 as well as Figure 5-7As shown, the housing 1 includes a first volute 1a and a second volute 1b, which are arranged on both sides of the fan 2. The first volute 1a and the fan 2 are spaced apart to form a first air duct 4a, and the second volute 1b and the fan 2 are spaced apart to form a second air duct 4b.

[0050] In this embodiment, a first volute 1a and a second volute 1b are provided on both sides of the fan 2, and a gap is provided between the two volutes and the fan 2 to allow air to flow, thereby forming a first air duct 4a and a second air duct 4b, so that the fan 2 has two air flow paths (i.e., one air flow path is: Figure 5 From the lower air outlet 3b - the second air duct 4b - the upper air outlet 3a, the second air flow path is: Figure 6 and Figure 7 The upper air vent 3a-first air duct 4a-lower air vent 3b) is configured so that the air conditioner flows through different air ducts when the corresponding mode is turned on, thereby adapting to more application scenarios. In this embodiment, by setting the first air duct 4a and the second air duct 4b, air can pass through the fan 2 more smoothly, reducing air flow resistance and energy loss. In addition, the setting of the volute helps to guide the airflow, so that it generates more effective thrust when the fan 2 is working, thereby improving the overall efficiency of the fan 2.

[0051] Specifically, Figure 1 As shown, the inner wall of the first volute 1 a is provided with a groove 11 , and the spoiler 6 is installed in the groove 11 , with a gap between the spoiler 6 and the groove 11 .

[0052] In this embodiment, during the operation of the fan 2, especially in the upper air outlet mode, the air entering from the lower air outlet 3b is thrown out of the impeller of the fan 2 under the action of the fan 2, and the air thrown out of the impeller enters the second air duct 4b. At this time, the second volute tongue 7 is in a rotating state, the second air duct 4b is connected, the air resistance is small, and it can smoothly flow from the second air duct 4b to the upper air outlet 3a. As for the first air duct 4a, since the first volute tongue 5 and the spoiler 6 are opened, part of the air entering the first air duct 4a from the gap between the fixed volute tongue 8 and the fan 2 will be blocked by the spoiler 6, but there is a gap between the spoiler 6 and the first volute 1a. This part of the air will bypass the spoiler 6 and come to the bottom of the first volute tongue 5 through the groove 11, and form a low-pressure area. At this time, a pressure difference is formed above and below the first volute tongue 5. Therefore, the resistance in the first air duct 4a increases, making it impossible for this part of the air to reach the lower air outlet 3b smoothly. The impeller of the fan 2 continuously throws air out from the inside, forming a low pressure inside, and needs to continuously inhale air from the lower air outlet 3b. At this time, an eccentric vortex is formed between the spoiler 6 and the first volute tongue 5 (see Figure 5It should be noted that which air outlet the air is replenished from and to which air outlet the air finally flows is determined by the flow resistance on both sides of the fan 2, and the flow resistance on both sides is determined by the first volute tongue 5, the spoiler 6 and the second volute tongue 7. If the airflow flowing to the upper air outlet 3a is smoother, the upper air outlet 3a becomes the air outlet, and the airflow flowing to the lower air outlet 3b is subject to resistance and cannot flow out smoothly from the lower air outlet 3b. The airflow thrown out of the impeller of the fan 2 will be replenished by the lower air outlet 3b, so that the lower air outlet 3b becomes the air inlet, and the airflow is continuously replenished to the inside of the fan 2.

[0053] Specifically, Figure 1-3 As shown, the upper air outlet 3a is provided with an openable upper air guide component 9, which can adjust the opening of the upper air outlet 3a when opened and closed, and the lower air outlet 3b is provided with an openable lower air guide component 10, which can adjust the opening of the lower air outlet 3b when opened and closed.

[0054] In this embodiment, the upper air guide assembly 9 and the lower air guide assembly 10 can control the opening of the upper air outlet 3a and the lower air outlet 3b according to the operation mode of the air conditioner, and can also control the air inlet direction and air outlet direction of the upper air outlet 3a and the lower air outlet 3b, so as to adapt to different user needs. In specific implementation, the upper air guide assembly 9 includes a first upper air guide plate 9a and a second upper air guide plate 9b, and the lower air guide assembly 10 includes a first lower air guide plate 10a and a second lower air guide plate 10b. By controlling the corresponding air guide plates to open to different positions, the opening of the corresponding air outlet and the air inlet direction or air outlet direction can be adjusted.

[0055] Specifically, Figure 1-3 As shown, the lower air guide assembly 10 includes a first lower air guide plate 10a and a second lower air guide plate 10b. In the lower air outlet mode, the second lower air guide plate 10b is located at the front end of the air outlet direction relative to the first lower air guide plate 10a. The first lower air guide plate 10a is opened to a continuous position to form a continuous volute structure with the first volute 1a, and the second lower air guide plate 10b can be opened to a vertical position.

[0056] In this embodiment, when the air conditioner is in the downwind mode, the first lower air guide plate 10a and the second lower air guide plate 10b can control the air outlet direction of the downwind port 3b, thereby achieving different air supply angles. In specific implementation, the first lower air guide plate 10a can be opened to a continuous position forming a continuous volute structure with the first volute 1a, that is, one end of the first lower air guide plate 10a is connected to an end of the first volute 1a close to the downwind port 3b, and is tilted along the air outlet direction, and the second lower air guide plate 10b is opened to a vertical position, that is, one end of the second lower air guide plate 10b is connected to an end of the second volute 1b close to the downwind port 3b, and is vertically arranged along the air outlet direction, and the second lower air guide plate 10b is arranged at the front end of the air outlet direction, so that the air passing through the first air duct 3a is guided in a predetermined direction by the first air guide plate 10a, and then is blocked by the vertically arranged second lower air guide plate 10b, and the air is guided in a vertical direction, thereby achieving vertical air supply.

[0057] like Figure 8 As shown, the embodiment of the present invention further provides a control method, which is applied to the air conditioner as described above, and includes S10-S30:

[0058] S10, confirming the operation mode of the air conditioner;

[0059] S20, if the operation mode of the air conditioner is the upper air outlet mode, controlling the first volute tongue 5 and the spoiler 6 to rotate out, and controlling the second volute tongue 7 to rotate back;

[0060] S30: If the operation mode of the air conditioner is the downward air outlet mode, the first volute tongue 5 and the spoiler 6 are controlled to rotate back, and the second volute tongue 7 is controlled to rotate out.

[0061] In this step, it is necessary to first confirm the operating mode of the air conditioner, and then control the working state of the first volute 5 and the spoiler 6, as well as the working state of the second volute 7 according to the operating mode, so as to achieve different air supply requirements. The specific process can refer to the above embodiment and will not be repeated here. In the specific implementation, the corresponding air outlet mode can be turned on according to the specific application scenario. For example, the air conditioner turns on the upper air outlet mode or the lower air outlet mode during the heating process, and can also turn on the upper air outlet mode or the lower air outlet mode during the cooling process.

[0062] During the cooling process, the air conditioner turns on the upper air outlet mode by default to ensure that the cold air gradually settles from the upper part of the room to the bottom of the room, and then sucks the air at the bottom through the lower air outlet 3b, so that the air circulation forms in the room to prevent the cold air from accumulating at the bottom. During the heating process, the air conditioner turns on the lower air outlet mode by default, and adopts the vertical air supply method to ensure that the hot air is blown vertically downward from the lower air outlet 3b, and the upper air outlet 3a absorbs the upper air of the room, so that the indoor air circulation forms and prevents the hot air from accumulating at the top.

[0063] Specifically, Fig. 9 As shown, the control method further includes S40-S50:

[0064] S40, if the operation mode of the air conditioner is the upper air outlet mode, the upper air guide assembly 9 is controlled to be opened, and the lower air guide assembly 10 is controlled to be opened, and the opening degree of the lower air outlet 3b is greater than the opening degree of the upper air outlet 3a;

[0065] S50. If the operation mode of the air conditioner is the lower air outlet mode, the upper air guide assembly 9 is controlled to be opened, and the lower air guide assembly 10 is controlled to be opened, and the opening degree of the upper air outlet 3a is greater than the opening degree of the lower air outlet 3b.

[0066] In this step, when the operation mode of the air conditioner is the upper air outlet mode, in order to ensure that the resistance of the upper air outlet 3a is greater than the resistance of the lower air outlet 3b, it is necessary to open the upper air guide component 9 to guide the air, and open the lower air guide component 10 to enter the air. For details, please refer to Figure 1 , open the two air guide plates of the upper air guide assembly 9 to an inclined position, that is, the two air guide plates are inclined along the air outlet direction, so that the opening of the upper air outlet 3a is smaller, and open the two air guide plates of the lower air guide assembly 10 to the middle position of the air outlet 3b, thereby increasing the opening of the lower air outlet 3b.

[0067] When the operation mode of the air conditioner is the lower air outlet mode, the resistance of the lower air outlet 3b should be greater than the resistance of the upper air outlet 3a. Therefore, the upper air guide component 9 of the upper air outlet 3a should be opened to the maximum to minimize the resistance of the upper air outlet 3a. The lower air guide component 10 of the lower air outlet 3b can be opened to two positions accordingly to achieve different air supply modes. Specifically, the first air supply mode is the normal air supply mode. The two air guide plates of the lower air guide component 10 of the lower air outlet 3b can be opened to Figure 2 The position shown in FIG. 1 is that the first lower air guide plate 10a is connected to the first volute 1a to form a continuous volute structure, and the second lower air guide plate 10b is opened to the middle position of the lower air outlet 3b. At this time, the two air guide plates of the upper air guide assembly 9 are also opened to Figure 2 The position shown in the figure, that is, the first upper air guide plate 9a is vertically connected to the housing 1 along the air outlet direction, and the second upper air guide plate 9b is inclined outward along the air outlet direction, so that the opening of the upper air outlet 3a is greater than the opening of the lower air outlet 3b; the second air supply mode is the vertical air supply mode, and the two air guide plates of the lower air guide assembly 10 of the lower air outlet 3b can be opened to Figure 3The position shown, that is, one end of the first lower air guide plate 10a is connected to one end of the first volute 1a close to the downwind outlet 3b, and is inclined along the air outlet direction to form a continuous volute structure with the first volute 1a, and one end of the second lower air guide plate 10b is connected to one end of the second volute 1b close to the downwind outlet 3b, and is vertically arranged along the air outlet direction, thereby changing the air outlet direction. At this time, the two air guide plates of the upper air guide assembly 9 are the same as the opening position of the ordinary air supply mode, and the opening of the upper air outlet 3a is greater than the opening of the lower air outlet 3b.

[0068] In shutdown state, if Figure 4 As shown, the upper air guide assembly 9 and the lower air guide assembly 10 are closed, and the first volute tongue 5, the spoiler 6 and the second volute tongue 7 are all in a rotated state.

[0069] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An air conditioner, comprising a housing and a fan arranged in the housing, characterized in that: The shell is provided with an upper air inlet and a lower air inlet, the fan is located between the upper air inlet and the lower air inlet, the inner wall of the shell and the two sides of the fan form a first air duct and a second air duct, the first air duct is provided with a first volute tongue that can be swung out or rotated back and a spoiler that can be swung out or rotated back simultaneously with the first volute tongue, the spoiler and the first volute tongue are located at different positions of the first air duct, the second air duct is provided with a second volute tongue that can be swung out or rotated back, when one of the first volute tongue and the second volute tongue is swung out, the other of the first volute tongue and the second volute tongue rotates back.

2. The air conditioner according to claim 1, characterized in that: When the air conditioner is in the up-air outlet mode, the first volute tongue and the spoiler are in the swiveled-out state, and the second volute tongue is in the swiveled-in state; when the air conditioner is in the down-air outlet mode, the first volute tongue and the spoiler are in the swiveled-in state, and the second volute tongue is in the swiveled-out state.

3. The air conditioner according to claim 1, characterized in that: It also includes a fixed volute tongue arranged in the shell. When the first volute tongue is rotated out, it is connected with the fixed volute tongue to form a closed area. The first volute tongue is arranged above the first air duct relative to the spoiler.

4. The air conditioner according to claim 1, characterized in that: When the second volute tongue is rotated out, a gap between an end of the second volute tongue close to the downwind outlet and the fan is larger than a gap between an end of the second volute tongue away from the downwind outlet and the fan.

5. The air conditioner according to claim 1, characterized in that: The housing includes a first volute and a second volute, the first volute and the second volute are arranged on both sides of the fan, the first volute and the fan are spaced apart to form the first air duct, and the second volute and the fan are spaced apart to form the second air duct.

6. The air conditioner according to claim 5, characterized in that: The inner wall of the first volute is provided with a groove, the spoiler is installed in the groove, and there is a gap between the spoiler and the groove.

7. The air conditioner according to claim 5, characterized in that: The upper air outlet is provided with an upper air guide component that can be opened and closed, and the upper air guide component can adjust the opening of the upper air outlet when opening and closing. The lower air outlet is provided with a lower air guide component that can be opened and closed, and the lower air guide component can adjust the opening of the lower air outlet when opening and closing.

8. The air conditioner according to claim 7, characterized in that: The lower air guide assembly includes a first lower air guide plate and a second lower air guide plate. In the lower air outlet mode, the second lower air guide plate is located at the front end of the air outlet direction relative to the first lower air guide plate. The first lower air guide plate opens to a continuous position forming a continuous volute structure with the first volute, and the second lower air guide plate can be opened to a vertical position.

9. A control method, applied to the air conditioner according to any one of claims 1 to 8, characterized in that: include: Confirm the operating mode of the air conditioner; If the operation mode of the air conditioner is the upper air outlet mode, the first volute tongue and the spoiler are controlled to rotate out, and the second volute tongue is controlled to rotate back; If the operation mode of the air conditioner is the downward air outlet mode, the first volute tongue and the spoiler are controlled to rotate back, and the second volute tongue is controlled to rotate out.

10. The control method according to claim 9, applied to the air conditioner according to any one of claims 7 to 8, characterized in that: Also includes: If the operation mode of the air conditioner is the upper air outlet mode, the upper air guide component is controlled to be opened, and the lower air guide component is controlled to be opened, and the opening degree of the lower air outlet is greater than the opening degree of the upper air outlet; If the operation mode of the air conditioner is the lower air outlet mode, the upper air guide component is controlled to be opened, and the lower air guide component is controlled to be opened, and the opening degree of the upper air outlet is greater than the opening degree of the lower air outlet.

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