Air conditioner indoor unit, air conditioner and control method thereof

Abstract

The present application provides an air conditioner indoor unit, an air conditioner and a control method thereof, comprising a housing and a fan, wherein an air inlet is arranged on the housing; the air inlet area of ​​the air inlet is adjustable; the fan is arranged in the housing; the air inlet area is positively correlated with the speed of the fan. According to the air conditioner indoor unit, the air conditioner and a control method thereof of the present application, the air inlet area can be matched with the speed of the fan to prevent the intermittent surging phenomenon of the air flow.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioners, and specifically relates to an air conditioner indoor unit, an air conditioner and a control method thereof. Background Art

[0002] At present, the air inlet of conventional hanging machine is usually a fixed structure, and the size cannot be adjusted. Therefore, at different wind speeds, intermittent airflow surge phenomenon often occurs due to the mismatch between the air inlet area and the fan speed, and the noise quality is poor. At the same time, the blowing feeling fluctuates, and the comfort is poor.

[0003] Therefore, how to provide an air conditioner indoor unit, an air conditioner and a control method thereof that can match the air inlet area with the fan speed and prevent intermittent airflow surging has become an urgent problem that technicians in this field need to solve. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present application is to provide an air-conditioning indoor unit, an air conditioner and a control method thereof, which can match the air inlet area with the fan speed to prevent intermittent surging of the airflow.

[0005] In order to solve the above problems, the present application provides an air conditioner indoor unit, comprising:

[0006] The shell is provided with an air inlet; the air inlet area of ​​the air inlet is adjustable;

[0007] Fan assembly; the fan assembly includes a fan, and the fan is arranged in a shell; the air inlet area is positively correlated with the rotation speed of the fan.

[0008] Preferably, the air conditioner indoor unit further comprises an air inlet panel; the air inlet panel is arranged at the air inlet; the air inlet panel is movable to adjust the size of the air inlet area.

[0009] Preferably, an air outlet is provided on the shell.

[0010] Preferably, one end of the air inlet panel close to the air outlet is pivotally connected to the shell.

[0011] Preferably, the speed of the fan is R; when the air inlet panel closes the air inlet, the opening angle of the air inlet panel is 0°; the opening angle of the air inlet panel is A=k*R+A1; wherein k is a proportional factor; and A1 is an intercept.

[0012] Preferably, 100rpm≤R≤500rpm; and / or, 0.1≤k≤0.4; and / or, when R is 0rpm, A1=0°; and / or, when R>0rpm, 5°≤A1≤20°; and / or, 0°≤A≤180°.

[0013] Preferably, 0°≤A≤90°; and / or, k=0.18; and / or, when R>0 rpm, A1=5°.

[0014] Preferably, the air conditioner indoor unit also includes a connecting rod structure; the connecting rod structure includes a main connecting rod and a supporting connecting rod; the supporting connecting rod is rotatably arranged on the main connecting rod; the supporting connecting rod is connected to the air inlet panel; the main connecting rod is movable to drive the supporting connecting rod to rotate, and then the air inlet panel rotates.

[0015] Preferably, the air inlet panel has a first edge and a second edge that are arranged opposite to each other; a first rotating part is arranged on the first edge; a first rotating hole is arranged on the shell; the first rotating part is rotatably arranged in the first rotating hole; a second rotating part is arranged on the second edge; a second rotating hole is arranged on the shell; the second rotating part is rotatably arranged in the second rotating hole.

[0016] Preferably, the supporting connecting rod is fixedly connected to the first rotating part.

[0017] Preferably, the supporting connecting rod is fixedly connected to the first rotating part via a flat structure.

[0018] Preferably, the number of the air inlet panels is set to at least two; and the at least two air inlet panels are arranged in sequence in a direction close to the air outlet.

[0019] Preferably, when the air inlet is closed, at least two air inlet panels are spliced ​​to close the air inlet.

[0020] Preferably, the number of the supporting connecting rods is set to at least two; and the supporting connecting rods are connected to the air inlet panels in a one-to-one correspondence.

[0021] Preferably, the air conditioner indoor unit further comprises a driving structure, the driving structure comprises a gear; the gear is rotatably arranged on the shell; a toggle part is arranged on the main connecting rod, and the gear is meshed with the toggle part.

[0022] Preferably, the driving structure comprises a driving part; the driving part is used to drive the gear to rotate.

[0023] Preferably, the number of air outlets is set to at least two; a centrifugal fan is provided corresponding to each air outlet; and the centrifugal fan is arranged in the housing.

[0024] According to another aspect of the present application, an air conditioner is provided, including an air conditioner indoor unit, which is the air conditioner indoor unit described above.

[0025] According to another aspect of the present application, a method for controlling an air conditioner is provided, comprising the following steps:

[0026] Get the operating mode of the air conditioner;

[0027] The number of centrifugal fans that are turned on, the operating parameters of each centrifugal fan and the air outlet direction are controlled according to the operating mode.

[0028] Preferably, controlling the number of centrifugal fans opened, the operating parameters of each centrifugal fan and the air outlet direction according to the operating mode includes the following steps:

[0029] When the operation mode of the air conditioner is the temperature adjustment mode, each centrifugal fan is controlled to be turned on;

[0030] And / or, when the operation mode of the air conditioner is the directional blowing mode, the corresponding centrifugal fan is controlled to turn on.

[0031] The air-conditioning indoor unit, air conditioner and control method thereof provided in the present application can independently control the operating parameters of each fan and the air outlet direction of the air outlet, and can meet the personalized needs of different users in the same room; can meet the personalized needs of different users in the same room, and can provide targeted air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of an air-conditioning indoor unit according to an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the installation structure of the indoor unit of the air conditioner according to an embodiment of the present application;

[0034] Figure 3 This is a schematic diagram of the structure of an air-conditioning indoor unit according to an embodiment of the present application;

[0035] Figure 4 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in a closed state;

[0036] Figure 5 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in the open state;

[0037] Figure 6 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in the open state;

[0038] Figure 7 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in a closed state;

[0039] Figure 8 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in the open state;

[0040] Fig. 9 This is a schematic diagram of the structure of the air outlet and air inlet of the air conditioner indoor unit in the embodiment of the present application in the open state;

[0041] Fig.10 This is a schematic diagram of the structure of an air-conditioning indoor unit according to an embodiment of the present application.

[0042] The reference numerals are as follows:

[0043] 1. Shell; 2. Air outlet; 3. Air guide plate; 4. Air inlet; 5. Air inlet panel; 6. Centrifugal fan; 61. Air duct; 62. Centrifugal fan blade; 63. Air duct inlet; 64. Air duct outlet; 66. Wind sweeping blade; 7. Evaporator; 8. Driving unit; 81. Connecting rod structure; 82. Gear. DETAILED DESCRIPTION

[0044] See also Figure 1-4 As shown, according to an embodiment of the present application, an air-conditioning indoor unit includes a shell 1 and a fan, and the shell 1 is provided with an air inlet 4; the air inlet area of ​​the air inlet 4 is adjustable; the fan is arranged in the shell 1; the air inlet area is positively correlated with the rotation speed of the fan, and the adjustment of the air inlet area is matched with the fan rotation speed under different wind gears, which can avoid the phenomenon of airflow surging and fluctuating air output.

[0045] Furthermore, the air-conditioning indoor unit further comprises an air inlet panel 5; the air inlet panel 5 is arranged at the air inlet 4; the air inlet panel 5 is movable to adjust the size of the air inlet area.

[0046] Furthermore, an air outlet 2 is provided on the shell 1 .

[0047] Furthermore, one end of the air inlet panel 5 close to the air outlet 2 is pivotally connected to the shell 1. When the air inlet panel 5 is opened, the air inlet and outlet 2 can be blocked to avoid the short circuit of the inlet and outlet airflows. When the air inlet panel 5 is fully opened, front air intake can be achieved, and the fan efficiency is high, which prevents the inlet and outlet airflows from short-circuiting and the air inlet resistance from being large, resulting in low fan efficiency.

[0048] See also Figure 1-4 , the present application also discloses some embodiments, the air outlet 2 is arranged at the bottom of the shell; the air inlet 4 is arranged at the side of the shell; at this time, the lower end of the air inlet panel 5 is pivotally connected to the shell 1;

[0049] See also Figure 5-10 , the present application also discloses some embodiments, the air outlet 2 is arranged at the top of the shell; the air inlet 4 is arranged at the side of the shell; at this time, the upper end of the air inlet panel 5 is pivotally connected to the shell 1, and the air outlet and the air guide plate are located on the upper side of the fan. The opening angle A of the air inlet panel can be 0-180°. Further, 0-90° is selected. When A is 90°, the air inlet area is the largest, the air intake efficiency of the fan is the highest, and the short circuit of the inlet and outlet airflow can be prevented. The opening angle can also be matched with the fan speed to avoid surging and the phenomenon of fluctuating air output. Wide-angle air supply, partitioned personalized air supply and targeted air supply can be realized.

[0050] Furthermore, the speed of the fan is R; when the air inlet panel 5 closes the air inlet 4, the opening angle of the air inlet panel 5 is 0°; the opening angle of the air inlet panel 5 is A=k*R+A1; wherein k is a proportional factor; and A1 is an intercept.

[0051] Further, 100rpm≤R≤500rpm; and / or, 0.1≤k≤0.4; and / or, when R is 0rpm, A1=0°; and / or, when R>0rpm, 5°≤A1≤20°; and / or, 0°≤A≤180°.

[0052] Further, 0°≤A≤90°; and / or, k=0.18; and / or, when R>0rpm, A1=5°.

[0053] Furthermore, the air conditioner indoor unit also includes a connecting rod structure 81; the connecting rod structure includes a main connecting rod and a supporting connecting rod; the supporting connecting rod is rotatably arranged on the main connecting rod; the supporting connecting rod is connected to the air inlet panel 5; the main connecting rod is movable to drive the supporting connecting rod to rotate, and then the air inlet panel 5 rotates.

[0054] Furthermore, the air inlet panel has a first edge and a second edge that are arranged opposite to each other; a first rotating part is arranged on the first edge; a first rotating hole is arranged on the shell; the first rotating part is rotatably arranged in the first rotating hole; a second rotating part is arranged on the second edge; a second rotating hole is arranged on the shell; the second rotating part is rotatably arranged in the second rotating hole.

[0055] Furthermore, the supporting connecting rod is fixedly connected to the first rotating part.

[0056] Furthermore, the supporting connecting rod is fixedly connected to the first rotating part via a flat structure.

[0057] Furthermore, the number of the air inlet panels 5 is set to at least two; and the at least two air inlet panels 5 are arranged in sequence in a direction close to the air outlet 2 .

[0058] Furthermore, when the air inlet 4 is closed, at least two air inlet panels 5 are spliced ​​to close the air inlet 4 .

[0059] Furthermore, the number of the supporting connecting rods is set to at least two; the supporting connecting rods are connected to the air inlet panels 5 in a one-to-one correspondence.

[0060] Furthermore, the indoor unit of the air conditioner further includes a driving structure, which includes a gear 82; the gear 82 is rotatably arranged on the housing; a toggle portion is arranged on the main connecting rod, and the gear 82 is meshed with the toggle portion. When the air conditioner is turned on, the air inlet panel driving motor drives the gear to rotate, and then the gear rack meshes with each other to drive the connecting rod to move to realize the opening and closing of the air inlet panel. The opening angle A of the air inlet panel ranges from 0 to 180 degrees, preferably from 0 to 90 degrees. After the air inlet panel is opened, the external airflow can enter the air duct.

[0061] Furthermore, the driving structure includes a driving part 8 ; the driving part 8 is used to drive the gear 82 to rotate.

[0062] Furthermore, the number of air outlets 2 is set to at least two; a centrifugal fan 6 is provided corresponding to each air outlet 2; and the centrifugal fan 6 is provided in the housing 1. The operating parameters of each fan and the air outlet direction of the air outlet 2 can be independently controlled, and the personalized needs of different users in the same room can be met; the personalized needs of different users in the same room can be met, and targeted air delivery can be achieved.

[0063] Furthermore, the air outlet 2 is located at the bottom of the housing 1, and the volute structure is directly downward, so that the airflow in the heating condition blows directly to the ground, and the hot air has better landing performance and higher comfort;

[0064] And / or, each air outlet 2 is provided with an air guide plate 3, and the use of multiple centrifugal fans 6 and multiple air outlets 2 can expand the air outlet angle, cover a wide range, and achieve rapid heat exchange in the room, more uniform temperature distribution, and high comfort. When the room temperature basically meets the user's needs, a single fan can be turned on separately to deliver air to the user in a targeted manner. The cold and heat brought by the airflow can be targeted to the user's location, and the energy utilization rate is high.

[0065] And / or, the number of air outlets 2 is set to two, that is, the number of centrifugal fans 6 is set to two. According to the airflow characteristics of the centrifugal fans 6, the dual centrifugal fans 6 can realize wide-angle air supply after being turned on, so that the room can quickly exchange heat, the temperature distribution is more uniform, and the comfort level is high;

[0066] And / or, the shell 1 is in the shape of a cuboid.

[0067] Furthermore, the air outlet 2 is closed by the air guide plate 3 as the closed position; the air outlet 2 is opened by the air guide plate 3 as the open position; the air guide plate 3 is rotatable between the closed position and the open position.

[0068] Furthermore, at least two air outlets 2 are arranged in sequence in the length direction of the housing 1 .

[0069] Furthermore, the air guide plate 3 is provided with a first rotating shaft; the shell 1 is provided with a first mounting hole; the first rotating shaft is rotatably provided in the first mounting hole. The air guide plate 3 adopts the installation method of the conventional air conditioner rotating air guide plate 3, that is, there is a pin at one end of the air guide plate 3, and there is a hole structure on the outer shell 1 at the corresponding position, and the air guide plate 3 can rotate relatively through the pin-hole matching method, and the other end of the air guide plate 3 is fixed with the motor shaft, and the motor drives the air guide plate 3 to rotate. The front is an opening, and the opening forms an air inlet 4;

[0070] According to an embodiment of the present application, an air conditioner is provided, including an air conditioner indoor unit, and the air conditioner indoor unit is the air conditioner indoor unit described above.

[0071] An evaporator 7 is arranged in the housing 1 , and the centrifugal fan 6 includes centrifugal fan blades 62 , an air duct 61 , an air duct inlet 63 , an air duct outlet 64 , and a wind sweeping blade 66 .

[0072] According to an embodiment of the present application, a method for controlling an air conditioner is provided, comprising the following steps:

[0073] Get the operating mode of the air conditioner;

[0074] The number of centrifugal fans 6 that are turned on, the operating parameters of each centrifugal fan 6 and the air outlet direction are controlled according to the operating mode.

[0075] Furthermore, controlling the number of centrifugal fans 6 that are turned on, the operating parameters of each centrifugal fan 6 and the air outlet direction according to the operating mode includes the following steps:

[0076] When the operation mode of the air conditioner is the temperature adjustment mode, each centrifugal fan 6 is controlled to be turned on;

[0077] And / or, when the operation mode of the air conditioner is the directional blowing mode, the corresponding centrifugal fan 6 is controlled to be turned on.

[0078] When the current indoor temperature is significantly different from the user's desired temperature, the dual fans can be turned on. The centrifugal fan 6 has a much larger air supply angle than a conventional cross-flow fan, has a wider coverage area, and the air flow is more evenly distributed in the room, and the heat exchange efficiency in the room is higher, so the user's desired temperature can be quickly reached.

[0079] When there are multiple users in a room, the corresponding fan operation status can be controlled according to different user needs to achieve personalized zoned air supply for users in different areas of the same room. For example: if there are two users in the room, located in the left and right areas of the room respectively, the two left and right fans can be turned on at the same time; if the user in the left area needs strong air blowing, and the user in the right area needs weak air blowing, the speed of the left and right fans can be adjusted to meet the needs of the users.

[0080] When the room temperature basically meets the user's needs, a single fan can be turned on individually to supply air to the user's area. The cold or heat brought by the airflow can be delivered to the user's location, with high energy utilization rate.

[0081] When the air conditioner is turned on, the driving motor drives the opening and closing of the air inlet panel 5. The opening angle A of the air inlet panel 5 ranges from 0 to 180 degrees, preferably from 0 to 90 degrees. After the air inlet panel 5 is opened, the external airflow can enter the air duct 61.

[0082] The opening angle of the air inlet panel 5 is correlated with the speed of the internal fan, and the opening angle and the speed of the internal fan are in a linear relationship, that is, A=k*R+A1, where A is the opening angle; k is a proportional factor, with a value of 0.1-0.4, preferably 0.18; R is the speed of the internal fan, with a value of 100rpm-500rpm, and different speeds are selected for each wind gear; A1 is the intercept, with a value of 0-20°, preferably 5°. When the opening angle A is 90°, frontal air intake can be achieved, with minimal air intake resistance and maximum efficiency. In the off state, the angle A takes a value of 0°, that is, the air guide plate 3 is in a closed state. A1 is the lowest opening angle that can cause the indoor temperature to change. k is the relationship between different fans and the opening angle.

[0083] When the wind speed changes, that is, the fan speed changes, the fan performance curve changes accordingly, and the fan's air suction capacity will change. However, the conventional hanging air inlet 4 is a fixed structure, and its area cannot be adjusted. When the air inlet area does not meet the fan's air suction capacity, air flow surge will occur inside the air duct 61, causing auditory discomfort. At the same time, the air outlet will become larger and smaller, causing discomfort to the blowing feeling.

[0084] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0085] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An air conditioner indoor unit, characterized in that: include: A shell (1), wherein the shell (1) is provided with an air inlet (4); the air inlet area of ​​the air inlet (4) is adjustable; A fan, the fan being arranged in the housing (1); the air inlet area is positively correlated with the rotation speed of the fan; The air conditioner indoor unit further comprises an air inlet panel (5); the air inlet panel (5) is arranged at the air inlet (4); the air inlet panel (5) is movable to adjust the size of the air inlet area; One end of the air inlet panel (5) is pivotally connected to the housing (1); the rotation speed of the fan is R; when the air inlet panel (5) closes the air inlet (4), the opening angle of the air inlet panel (5) is 0°; the opening angle of the air inlet panel (5) is A=k*R+A1; wherein k is a proportional factor; A1 is an intercept; 100rpm≤R≤500rpm, 0.1≤k≤0.4; when R is 0rpm, A1=0°; when R>0rpm, 5°≤A1≤20°; The air inlet panel (5) is located outside the air inlet (4).

2. The air conditioner indoor unit according to claim 1, characterized in that: The housing (1) is provided with an air outlet (2).

3. The air conditioner indoor unit according to claim 2, characterized in that: One end of the air inlet panel (5) close to the air outlet (2) is pivotally connected to the housing (1).

4. The air conditioner indoor unit according to claim 1, characterized in that: 0°≤A≤180°。 5. The air conditioner indoor unit according to claim 4, characterized in that: 0°≤A≤90°; and / or, k=0.18; and / or, when R>0rpm, A1=5°.

6. The air conditioner indoor unit according to claim 3, characterized in that: The air conditioner indoor unit also includes a connecting rod structure (81); the connecting rod structure includes a main connecting rod and a supporting connecting rod; the supporting connecting rod is rotatably arranged on the main connecting rod; the supporting connecting rod is connected to the air inlet panel (5); the main connecting rod is movable to drive the supporting connecting rod to rotate, thereby rotating the air inlet panel (5).

7. The air conditioner indoor unit according to claim 6, characterized in that: The air inlet panel has a first edge and a second edge that are arranged opposite to each other; a first rotating part is arranged on the first edge; a first rotating hole is arranged on the shell; the first rotating part is rotatably arranged in the first rotating hole; a second rotating part is arranged on the second edge; a second rotating hole is arranged on the shell; the second rotating part is rotatably arranged in the second rotating hole.

8. The air conditioner indoor unit according to claim 7, characterized in that: The supporting connecting rod is fixedly connected to the first rotating part.

9. The air conditioner indoor unit according to claim 8, characterized in that: The supporting connecting rod is fixedly connected to the first rotating part via a flat structure.

10. The air conditioner indoor unit according to claim 7, characterized in that: The number of the air inlet panels (5) is set to be at least two; the at least two air inlet panels (5) are arranged in sequence in a direction close to the air outlet (2).

11. The air conditioner indoor unit according to claim 10, characterized in that: When the air inlet (4) is closed, at least two of the air inlet panels (5) are spliced ​​together to close the air inlet (4).

12. The air conditioner indoor unit according to claim 10, characterized in that: The number of the supporting connecting rods is set to at least two; and the supporting connecting rods are connected to the air inlet panels (5) in a one-to-one correspondence.

13. The air conditioner indoor unit according to claim 7, characterized in that: The air conditioner indoor unit also includes a driving structure, which includes a gear (82); the gear (82) is rotatably arranged on the shell; the main connecting rod is provided with a toggle part, and the gear (82) is meshed with the toggle part.

14. The air conditioner indoor unit according to claim 13, characterized in that: The driving structure comprises a driving part (8); the driving part (8) is used to drive the gear (82) to rotate.

15. The air conditioner indoor unit according to claim 2, characterized in that: The fan is a centrifugal fan (6); the number of the air outlets (2) is set to at least two; a centrifugal fan (6) is provided corresponding to each of the air outlets (2); and the centrifugal fan (6) is arranged in the housing (1).

16. An air conditioner, comprising an air conditioner indoor unit, characterized in that: The air-conditioning indoor unit is the air-conditioning indoor unit according to any one of claims 1-15.

17. A method for controlling an air conditioner according to claim 16, characterized in that: When the fan is a centrifugal fan (6), and the housing (1) is provided with an air outlet (2), and the number of the air outlets (2) is set to at least two; and a centrifugal fan (6) is provided corresponding to each of the air outlets (2), the control method comprises the following steps: Acquire the operating mode of the air conditioner; The number of centrifugal fans (6) that are turned on, the operating parameters of each centrifugal fan (6) and the air outlet direction are controlled according to the operating mode.

18. The air conditioner control method according to claim 17, characterized in that: The step of controlling the number of centrifugal fans (6) that are turned on, the operating parameters of each centrifugal fan (6) and the air outlet direction according to the operating mode comprises the following steps: When the operating mode of the air conditioner is a temperature adjustment mode, each of the centrifugal fans (6) is controlled to be turned on; And / or, when the operation mode of the air conditioner is a directional blowing mode, the corresponding centrifugal fan (6) is controlled to be turned on.

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