Air conditioner and control method thereof

Abstract

The embodiment of the present application provides an air conditioner and a control method thereof, which are characterized in that: an upper air inlet and a lower air inlet are arranged on a shell, so that the air conditioner has two air inlets and outlets, and the air conditioner has an upper air outlet mode and a lower air outlet mode. In the embodiment, when the air conditioner is heating, the lower air outlet mode is started, so that the hot air accumulated on the top is sucked into the upper air inlet and sent to the bottom of the indoor space through the lower air inlet. When the air conditioner is cooling, the upper air outlet mode is started, so that the cold air accumulated on the bottom is sucked into the lower air inlet and sent to the top of the indoor space through the upper air inlet, thereby improving the energy utilization rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly relates to an air conditioner and a control method thereof. BACKGROUND

[0002] In order to improve the air supply comfort, when the air conditioner is started, the upper air outlet mode is usually adopted in the cooling mode, and the lower air outlet mode is adopted in the heating mode. This is because the cold air has a large density, and after the upper air outlet mode is adopted, the air is sent to the indoor top and then sinks and gradually accumulates at the indoor bottom. The hot air has a small density, and after the lower air outlet mode is adopted, the air is sent to the indoor bottom and then floats up and gradually accumulates at the indoor top, so that the air supply demand of the user can be met in a short time.

[0003] However, after the air conditioner is operated for a long time, temperature stratification is formed in the room, and when cooling or heating is performed, the air accumulated at the bottom (or top) of the room and the air at the top (or bottom) form a temperature difference. When heating is performed, the accumulated air directly enters the air inlet of the air conditioner, at this time, the air conditioner erroneously considers that the indoor temperature has reached the preset temperature, and thus stops heating, however, the temperature at the indoor bottom has not reached the preset value; when cooling is performed, the air conditioner continues to cool when the air at the indoor top has not reached the preset temperature, and the cold air continues to sink, so that when the air temperature at the top reaches the preset temperature, the temperature at the indoor bottom is lower than the preset temperature. At this time, whether the hot air accumulated at the top when heating or the cold air accumulated at the bottom when cooling is not effectively utilized, thereby causing energy waste. SUMMARY

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

[0005] The embodiment of the present application provides an air conditioner, which comprises a shell and a fan arranged in the shell, the shell is provided with an upper air outlet and a lower air outlet, the fan is located between the upper air outlet and the lower air outlet, 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 which can be rotated out or rotated back, and a spoiler which is rotated out or rotated back at the same time as the first volute tongue, the spoiler and the first volute tongue are located at different positions in the first air duct, the second air duct is provided with a second volute tongue which can be rotated out or rotated back, when one of the first volute tongue and the second volute tongue is rotated out, the other one of the first volute tongue and the second volute tongue is rotated back.

[0006] Specifically, when the air conditioner is in the upper air outlet mode, the first volute tongue and the spoiler are in the rotated-out state, and the second volute tongue is in the rotated-back state; when the air conditioner is in the lower air outlet mode, the first volute tongue and the spoiler are in the rotated-back state, and the second volute tongue is in the rotated-out state.

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

[0008] Specifically, when the second volute is rotated out, a gap between one end of the second volute close to the lower air outlet and the fan is greater than a gap between the other end of the second volute away from the lower air outlet and the fan.

[0009] Specifically, the shell comprises 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 is arranged apart from the fan to form the first air duct, and the second volute is arranged apart from the fan to form the second air duct.

[0010] Specifically, an inner wall of the first volute is provided with a groove, and the spoiler is arranged in the groove, and the spoiler and the groove have a gap therebetween.

[0011] Specifically, the upper air outlet is provided with an openable and closable upper air guide assembly, the upper air guide assembly can adjust the opening degree of the upper air outlet when being opened and closed, the lower air outlet is provided with an openable and closable lower air guide assembly, and the lower air guide assembly can adjust the opening degree of the lower air outlet when being opened and closed.

[0012] Specifically, the lower air guide assembly comprises 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 can be opened to a continuous position to form 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 application further provides a control method applied to the air conditioner, and the control method comprises the following steps:

[0014] Confirming the operation mode of the air conditioner;

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

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

[0017] Specifically, the control method further comprises the following steps:

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

[0020] The air conditioner and the control method thereof provided by the embodiment of the present application have two air inlets and outlets by setting the upper air outlet and the lower air outlet on the shell, so that the air conditioner has the upper air outlet mode and the lower air outlet mode. The lower air outlet mode can be opened when the air conditioner is heating, so that the hot air accumulated on the top is sucked into the upper air outlet and sent to the bottom of the indoor space through the lower air outlet. The upper air outlet mode can be opened when the air conditioner is cooling, so that the cold air accumulated on the bottom is sucked into the lower air outlet and sent to the top of the indoor space through the upper air outlet, thereby improving the energy utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 An internal structure of an air conditioner provided by the embodiment of the present application Figure 1 ;

[0023] Figure 2 An internal structure of an air conditioner provided by the embodiment of the present application Figure 2 ;

[0024] Figure 3 An internal structure of an air conditioner provided by the embodiment of the present application Figure 3 ;

[0025] Figure 4 An internal structure of an air conditioner provided by the embodiment of the present application Figure 4 ;

[0026] Figure 5 An air flow path of an air conditioner provided by the embodiment of the present application in the upper air outlet mode

[0027] Figure 6 An air flow path of an air conditioner provided by the embodiment of the present application in the lower air outlet mode Figure 1 ;

[0028] Figure 7 An air flow path of an air conditioner provided by the embodiment of the present application in the lower air outlet mode Figure 2 ;

[0029] Figure 8 Flowchart of a control method of an air conditioner according to an embodiment of the present application Figure 1

[0030] Figure 9 Flowchart of a control method of an air conditioner according to an embodiment of the present application Figure 2 .

[0031] Explanation of reference numerals in the drawings

[0032] 1, housing; 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 technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

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

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

[0036] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means one or more of the associated listed items and all possible combinations of the items.

[0037] Please refer to Figures 1-3 ​The embodiment of the present application provides a kind of air conditioner, including shell 1 and fan 2 being arranged in shell 1, shell 1 is provided with upper air port 3a and lower air port 3b, fan 2 is located between upper air port 3a and lower air port 3b, the inner wall of shell 1 and the two sides of fan 2 form first air duct 4a and second air duct 4b, first air duct 4a is provided with the first volute tongue 5 that can be rotated out or rotated back and the 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 in different positions of first air duct 4a, second air duct 4b is provided with the second volute tongue 7 that can be rotated out or rotated back, one of first volute tongue 5 and second volute tongue 7 is rotated out, and the other of first volute tongue 5 and second volute tongue 7 is rotated back.

[0038] In the embodiment, upper air port 3a and lower air port 3b are air inlet and outlet of air conditioner, that is, upper air port 3a and lower air port 3b can be air inlet or air outlet, but they cannot be air inlet or air outlet at the same time, that is, when one of upper air port 3a and lower air port 3b is air inlet, the other of upper air port 3a and lower air port 3b is air outlet, so that air conditioner can realize upper air outlet and lower air outlet, so that air conditioner has upper air outlet mode and lower air outlet mode.

[0039] When air conditioner works, whether in upper air outlet mode or in lower air outlet mode, air needs to flow from one air port to another air port, and fan 2 is located between upper air port 3a and lower air port 3b, when air enters air conditioner from one air port, under the action of fan 2, part of air will flow through one air duct and then enter another air duct, and finally flow out from the air port that air enters, so that the air volume of the corresponding air port as air outlet is reduced, therefore, first volute tongue 5 and spoiler 6 that can be rotated out or rotated back are arranged in first air duct 4a, for rotating out or rotating back in specific operation mode to change the flow direction of air in first air duct 4a, and second volute tongue 7 that can be rotated out or rotated back is arranged in second air duct 4b, for changing the flow direction of air in second air duct 4b in specific operation mode, so that air enters air conditioner from one air port and then flows out from another air port after passing through the corresponding air duct. Wherein, fan 2 rotates counterclockwise when working.

[0040] In prior art, the existing air outlet mode will cause hot air to accumulate at the top when heating, and cold air to accumulate at the bottom when cooling, therefore, in the embodiment, lower air outlet mode can be started when air conditioner heats, so that hot air accumulated at the top is sucked into upper air port 3a and sent to the bottom of indoor through lower air port 3b, and upper air outlet mode can be started when air conditioner cools, so that cold air accumulated at the bottom is sucked into lower air port 3b and sent to the top of indoor through upper air port 3a, so as to improve the utilization rate of energy.

[0041] Specifically, in the up air-out mode, the first volute tongue 5 and the spoiler 6 are rotated out, and the second volute tongue 7 is rotated back; in the down air-out mode, the first volute tongue 5 and the spoiler 6 are rotated back, and the second volute tongue 7 is rotated out.

[0042] In this embodiment, as shown in Figure 1 , when the air conditioner is in the up air-out mode, air enters from the lower air outlet 3b and flows to the second air duct 4b under the action of the fan 2. At this time, the second volute tongue 7 is rotated back, i.e., the second volute tongue 7 is close to the second volute casing 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, i.e., 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 to the direction of the upper air outlet 3a, the spoiler 6 also needs to be rotated out, so as to block the air entering the first air duct 4a, so that it cannot flow to the lower air outlet 3b, and then flows to the direction of 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] As shown in Figure 2 and 3 , when the air conditioner is in the down air-out mode, air enters from the upper air outlet 3a and flows to the first air duct 4a under the action of the fan 2. At this time, the first volute tongue 5 and the spoiler 6 are rotated back, i.e., the first volute tongue 5 and the spoiler 6 are close to the first volute casing 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 lower air outlet 3b, the second volute tongue 7 needs to be rotated out, i.e., 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 of the 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 to the direction of the lower air outlet 3b, the structure of the second volute tongue 7 also needs to be improved, so that the air cannot flow to the upper air outlet 3a. The specific improvement can be to set an arc structure or a polyline structure at the end of the second volute tongue 7 away from the lower air outlet 3b, so as to block the air entering the second air duct 4b. Then, the air flows to the direction of the lower air 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, as shown in Figure 1 , the air conditioner further comprises a fixed volute tongue 8 arranged in the shell 1. When the first volute tongue 5 is rotated out, the first volute tongue 5 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 the embodiment, when the air conditioner is in the upper air outlet mode, in order to make the first air duct 4a present a more tightly blocked state, a fixed volute tongue 8 can be arranged in the shell 1, preferably arranged near the first air duct 4a, so that when the first volute tongue 5 is rotated out, the rotated-out end can contact the fixed volute tongue 8, and after the first volute tongue 5 and the fixed volute tongue 8 contact, a closed area is formed, and 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 part of the 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 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, as shown in Figure 2 and Figure 3 When the second volute tongue 7 is rotated out, the gap between the end of the second volute tongue 7 close to the lower air outlet 3b and the fan 2 is larger than the gap between the end of the second volute tongue 7 away from the lower air outlet 3b and the fan 2.

[0047] In the embodiment, when the air conditioner is in the lower air outlet mode, at this time, 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, and a small part 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 air to the direction of the lower air outlet 3b, the gap between the end of the second volute tongue 7 close to the lower air 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 lower air outlet 3b and the fan 2 can be set to be smaller, so that although air can enter the second air duct 4b from the end of the second volute tongue 7 close to the lower air outlet 3b, it cannot flow towards the upper air outlet 3a, so that the air flow between the second volute tongue 7 and the impeller of the fan 2 is pressed into the inside of the impeller, thereby forcing the air flow to form a backflow in the inside of the impeller, thereby forming an eccentric vortex, i.e., the eccentric vortex is near the second volute tongue 7.

[0048] As for setting the gap between the end of the second volute tongue 7 away from the lower air outlet 3b and the fan 2 to be smaller, reference can be made to the foregoing embodiment, and the end of the second volute tongue 7 away from the lower air outlet 3b can be arranged in an arc structure or a polyline structure, thereby blocking the air entering the second air duct 4b, and then flowing towards the direction of the lower air outlet 3b under the action of the fan 2 and the spoiler 6. The gap between the end of the second volute tongue 7 close to the lower air outlet 3b and the fan 2 can be set to 5-8 mm, and the gap between the end of the second volute tongue 7 away from the lower air outlet 3b and the fan 2 can be set to 4-5 mm.

[0049] Specifically, as shown in Figures 1-3 and Figures 5-7As shown, the shell 1 includes a first volute 1a and a second volute 1b, which are arranged on both sides of the fan 2, and the first volute 1a and the fan 2 are arranged with a gap to form a first air duct 4a, and the second volute 1b and the fan 2 are arranged with a gap to form a second air duct 4b.

[0050] In this embodiment, the first volute 1a and the second volute 1b are arranged on both sides of the fan 2, and the two volutes and the fan 2 have a gap to allow air flow, thereby forming the first air duct 4a and the 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-second air duct 4b-upper air outlet 3a, and the second air flow path is: Figure 6 and Figure 7 upper air outlet 3a-first air duct 4a-lower air outlet 3b), so that the air conditioner can flow through different air ducts when the corresponding mode is turned on, thereby adapting to more application scenarios. By arranging the first air duct 4a and the second air duct 4b, the air can flow more smoothly through the fan 2, reducing air flow resistance and energy loss, and the arrangement of the volute helps to guide the air flow, making it produce more effective thrust when the fan 2 is working, thereby improving the overall efficiency of the fan 2.

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

[0052] In this embodiment, during the working process 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 outside 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 the air can flow smoothly from the second air duct 4b to the upper air outlet 3a. The first air duct 4a, due to the opening of the first volute tongue 5 and the spoiler 6, 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 the spoiler 6 and the first volute 1a have a gap therebetween. This part of the air will bypass the spoiler 6 and pass through the groove 11 to the lower side of the first volute tongue 5 and form a low-pressure area. At this time, a pressure difference is formed between the upper side and the lower side of the first volute tongue 5, so the resistance in the first air duct 4a increases, making it difficult for this part of the air to reach the lower air outlet 3b. The impeller of the fan 2 continuously throws air out of the inside, forming a low pressure inside, and needs to continuously suck air from the lower air outlet 3b into the inside. At this time, an eccentric vortex is formed between the spoiler 6 and the first volute tongue 5 (for reference Figure 5). It should be noted that which air is supplemented by which tuyere and finally flows to which tuyere 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 and the spoiler 6 and the second volute tongue 7. If the airflow flowing to the upper tuyere 3a is smoother, the upper tuyere 3a becomes the air outlet, and the airflow flowing to the lower tuyere 3b is resisted and cannot smoothly flow out from the lower tuyere 3b. The airflow thrown out by the impeller inside the fan 2 will be supplemented by the lower tuyere 3b, so that the lower tuyere 3b becomes the air inlet, and continuously supplements the airflow inside the fan 2.

[0053] Specifically, as shown in Figures 1-3 , the upper tuyere 3a is provided with an openable and closable upper air guide assembly 9, and the upper air guide assembly 9 can adjust the opening degree of the upper tuyere 3a when opening and closing. The lower tuyere 3b is provided with an openable and closable lower air guide assembly 10, and the lower air guide assembly 10 can adjust the opening degree of the lower tuyere 3b when opening and closing.

[0054] In this embodiment, the upper air guide assembly 9 and the lower air guide assembly 10 can control the opening degree of the upper tuyere 3a and the lower tuyere 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 tuyere 3a and the lower tuyere 3b, so as to adapt to different use requirements of users. 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 plate to open to different positions, the opening degree and the air inlet direction or the air outlet direction of the corresponding tuyere can be adjusted.

[0055] Specifically, as shown in Figures 1-3 , 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 forming 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 lower air outlet mode, the first lower air deflector 10a and the second lower air deflector 10b can control the air outlet direction of the lower air outlet 3b, thereby realizing different air supply angles. In specific implementation, the first lower air deflector 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 deflector 10a is connected to one end of the first volute 1a close to the lower air outlet 3b and is inclined along the air outlet direction, and the second lower air deflector 10b can be opened to a vertical position, that is, one end of the second lower air deflector 10b is connected to one end of the second volute 1b close to the lower air outlet 3b and is vertically arranged along the air outlet direction, and the second lower air deflector 10b is arranged at the front end of the air outlet direction, so that the air passing through the first air duct 3a is blocked by the vertically arranged second lower air deflector 10b after being guided to a predetermined direction by the first air deflector 10a, and the air is guided to a vertical direction, thereby realizing vertical air supply.

[0057] As shown in Figure 8 The embodiment of the present application also provides a control method, which is applied to the air conditioner as described above and includes the following steps 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, rotating out the first volute tongue 5 and the spoiler 6, and rotating back the second volute tongue 7;

[0060] S30, if the operation mode of the air conditioner is the lower air outlet mode, rotating back the first volute tongue 5 and the spoiler 6, and rotating out the second volute tongue 7.

[0061] In this step, the operation mode of the air conditioner needs to be confirmed first, and then the working state of the first volute tongue 5 and the spoiler 6 and the working state of the second volute tongue 7 are controlled according to the operation mode, thereby realizing different air supply requirements. The specific process can refer to the foregoing embodiments, which will not be described here. In specific implementation, the corresponding air outlet mode can be opened according to the specific application scene, for example, the upper air outlet mode or the lower air outlet mode can be opened in the heating process of the air conditioner, or the upper air outlet mode or the lower air outlet mode can be opened in the cooling process of the air conditioner.

[0062] In the cooling process, the air conditioner defaults to the upper air outlet mode, so as to ensure that the cold air gradually sinks from the upper part of the room to the bottom of the room, and then the air at the bottom is sucked into the lower air outlet 3b, so that the air flow in the room is circulated, preventing the cold air from accumulating at the bottom. In the heating process, the air conditioner defaults to the lower air outlet mode and adopts the vertical air supply mode, so as to ensure that the hot air is blown vertically downward from the lower air outlet 3b, and the upper air outlet 3a absorbs the air at the upper part of the room, so that the air flow in the room is circulated, preventing the hot air from accumulating at the top.

[0063] Specifically, asFigure 9 As shown, the control method further comprises 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 that 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 that 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 that of the lower air outlet 3b, the upper air guide assembly 9 needs to be opened to realize air guiding, and the lower air guide assembly 10 needs to be opened to realize air inletting. Specifically, please refer to Figure 1 The two air guide plates of the upper air guide assembly 9 are opened to the inclined position, that is, the two air guide plates are inclined along the air outlet direction, so that the opening degree of the upper air outlet 3a is small, and the two air guide plates of the lower air guide assembly 10 are opened to the middle position of the air outlet 3b, so that the opening degree of the lower air outlet 3b is increased.

[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 that of the upper air outlet 3a, so the upper air guide assembly 9 of the upper air outlet 3a should be opened to the maximum to realize the maximum reduction of the resistance of the upper air outlet 3a, and the lower air guide assembly 10 of the lower air outlet 3b can be opened to two positions to realize different air supply modes. Specifically, the first air supply mode is the ordinary air supply mode, the two air guide plates of the lower air guide assembly 10 of the lower air outlet 3b can be opened to Figure 2 the position shown, that is, the first lower air guide plate 10a is connected with 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, that is, the first upper air guide plate 9a is vertically connected to the shell 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 degree of the upper air outlet 3a is greater than that of the lower air outlet 3b; the second air supply mode is the vertical air supply mode, 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, i.e. one end of the first lower air deflector 10a is connected to one end of the first volute 1a close to the lower air 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 deflector 10b is connected to one end of the second volute 1b close to the lower air outlet 3b and is vertically arranged along the air outlet direction to change the air outlet direction, at this time, the two air deflectors of the upper air deflector assembly 9 are in the same open position as the common air supply mode, and the opening degree of the upper air outlet 3a is greater than that of the lower air outlet 3b.

[0068] In the off state, as shown in Figure 4 The upper air deflector assembly 9 and the lower air deflector assembly 10 are closed, and the first volute tongue 5, the spoiler 6 and the second volute tongue 7 are all in the rotation state.

[0069] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air conditioner comprising a casing and a fan provided in said casing, characterized in that, The shell is provided with an upper air outlet and a lower air outlet, the fan is located between the upper air outlet and the lower air outlet, 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 which can be rotated out or turned, and a spoiler which is rotated out or turned 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 which can be rotated out, when one of the first volute tongue and the second volute tongue is rotated out, the other one is turned; When the second volute tongue is rotated out, the gap between the end of the second volute tongue close to the lower air outlet and the fan is larger than the gap between the end of the second volute tongue away from the lower air outlet and the fan.

2. The air conditioner of claim 1, wherein In the upper air outlet mode of the air conditioner, the first volute tongue and the spoiler are in the state of being rotated out, and the second volute tongue is in the state of being turned; in the lower air outlet mode of the air conditioner, the first volute tongue and the spoiler are in the state of being turned, and the second volute tongue is in the state of being rotated out.

3. The air conditioner of claim 1, wherein Further comprising a fixed volute tongue arranged in the shell, when the first volute tongue is rotated out, the first volute tongue and the fixed volute tongue form a closed area, and the first volute tongue is arranged above the first air duct relative to the spoiler.

4. The air conditioner of claim 1, wherein The shell comprises a first volute and a second volute, the first volute and the second volute are arranged at the two sides of the fan, the first volute and the fan are arranged with a spacing to form the first air duct, and the second volute and the fan are arranged with a spacing to form the second air duct.

5. The air conditioner of claim 4, wherein The inner wall of the first volute is provided with a groove, the spoiler is installed in the groove, and the spoiler and the groove have a gap therebetween.

6. The air conditioner of claim 4, wherein The upper air outlet is provided with an openable and closable upper air guide assembly, the opening degree of the upper air outlet can be adjusted when the upper air guide assembly is opened and closed, the lower air outlet is provided with an openable and closable lower air guide assembly, the opening degree of the lower air outlet can be adjusted when the lower air guide assembly is opened and closed.

7. The air conditioner of claim 6, wherein The lower air guide assembly comprises 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 in the air outlet direction relative to the first lower air guide plate, the first lower air guide plate can be opened to a continuous position to form a continuous volute structure with the first volute, and the second lower air guide plate can be opened to a vertical position.

8. A control method applied to the air conditioner according to any one of claims 6 to 7, characterized in that, Comprise: Confirming the operation mode of the air conditioner; If the operation mode of the air conditioner is the upper air outlet mode, controlling the first volute tongue and the spoiler to be rotated out, and controlling the second volute tongue to be turned; If the operation mode of the air conditioner is the lower air outlet mode, controlling the first volute tongue and the spoiler to be turned, and controlling the second volute tongue to be rotated out.

9. The control method according to claim 8, characterized by, Further comprise: If the operation mode of the air conditioner is the upper air outlet mode, controlling the upper air guide assembly to be opened, and controlling the lower air guide assembly to be opened, and the opening degree of the lower air outlet is larger than that of the upper air outlet; If the operation mode of the air conditioner is the lower air outlet mode, controlling the upper air guide assembly to be opened, and controlling the lower air guide assembly to be opened, and the opening degree of the upper air outlet is larger than that of the lower air outlet.

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