Air conditioner indoor unit and air conditioner

Abstract

The application relates to the field of air conditioners, and discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, multiple evaporators, a liquid inlet pipe, a throttle valve, a liquid outlet pipe and a controller. The lower end of the shell is provided with an air outlet. The multiple evaporators are arranged in the shell and are sequentially arranged along the horizontal direction of the air outlet. The liquid inlet pipe comprises a liquid inlet section and multiple shunt sections connected with the liquid inlet section, and each shunt section is connected with the first end of each evaporator. The throttle valve is arranged on the shunt section of the liquid inlet pipe. The liquid outlet pipe is connected with the second end of each evaporator. The controller is configured to controllably adjust the opening degree of the throttle valve, so as to adjust the air outlet temperature of the air outlet. By adjusting the opening degree of the throttle valve corresponding to the multiple evaporators, the air outlet temperature of different areas of the air outlet of the air conditioner indoor unit is adjusted. The application further discloses an air conditioner.

Description

Technical Field

[0001] The present application relates to the field of air conditioning, for example, to an air conditioning indoor unit and an air conditioner. Background Art

[0002] Air conditioners are used to regulate and control the temperature, humidity, flow rate, and other parameters of the ambient air within a building or structure. Wall-mounted air conditioners are widely used in homes due to their small size, lack of floor space, and affordability.

[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0004] Existing air conditioners feature a multi-stage evaporator inside the indoor unit and a throttle valve in the outdoor unit. The refrigerant flowing out of the throttle valve and into each evaporator has the same temperature, resulting in the same outlet air temperature. This makes it impossible to adjust the outlet air temperature to different air supply areas based on user needs. Summary of the Invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide an air conditioner indoor unit and an air conditioner, which adjust the opening of throttle valves corresponding to multiple evaporators to adjust the air outlet temperature of different areas of the air outlet of the air conditioner indoor unit.

[0007] In some embodiments, an air conditioner indoor unit includes a housing, multiple evaporators, a liquid inlet pipe, a throttle valve, a liquid outlet pipe, and a controller. An air outlet is provided at the lower end of the housing. Multiple evaporators are disposed within the housing and are arranged in sequence horizontally along the air outlet. The liquid inlet pipe includes a liquid inlet section and multiple diversion sections connected to the liquid inlet section, each diversion section being connected to the first end of each evaporator. The throttle valve is disposed in the diversion section of the liquid inlet pipe. The liquid outlet pipe is connected to the second end of each evaporator. The controller is configured to controllably adjust the throttle valve opening, thereby adjusting the outlet air temperature of the air outlet.

[0008] Optionally, the controller is further configured to obtain a first current temperature and a first set temperature of the evaporator under refrigeration conditions, and adjust the opening of the throttle valve when the difference between the first current temperature and the first set temperature is greater than or equal to a first preset difference.

[0009] Optionally, the shell includes an arc-shaped upper edge and an arc-shaped lower edge that form an air outlet and protrude outward.

[0010] Optionally, the plurality of evaporators comprises a first evaporator, a second evaporator and a third evaporator arranged in sequence along the horizontal direction of the air outlet.

[0011] Optionally, the throttles comprise a first throttle, a second throttle and a third throttle.

[0012] Optionally, the flow dividing sections comprise a first flow dividing section, a second flow dividing section and a third flow dividing section. The first throttle is arranged in the first flow dividing section, and the first flow dividing section is connected to the first evaporator. The second throttle is arranged in the second flow dividing section, and the second flow dividing section is connected to the second evaporator. The third throttle is arranged in the third flow dividing section, and the third flow dividing section is connected to the third evaporator. Different throttles are used to adjust the temperature of the refrigerant in the corresponding evaporator.

[0013] Optionally, the plurality of evaporators comprises a coil evaporator.

[0014] Optionally, the air conditioner indoor unit further comprises a fan. The fan is arranged on one side of the air outlet in the shell.

[0015] Optionally, the fan comprises a first fan and a second fan. The first fan and the second fan are arranged transversely side by side on one side of the air outlet in the shell.

[0016] Optionally, the fan comprises a cross-flow fan, an axial-flow fan or a centrifugal fan.

[0017] In some embodiments, an air conditioner comprises the above-mentioned air conditioner indoor unit.

[0018] The air conditioner indoor unit and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The air conditioner indoor unit comprises a plurality of evaporators, and each evaporator is correspondingly provided with a throttle. The opening degree of each throttle is adjusted by a controller, so as to adjust the temperature of the refrigerant flowing out of each throttle, and further adjust the air outlet temperature of each evaporator. Finally, the air outlet temperatures of different areas at the air outlet are different.

[0020] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0022] Figure 1is a structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of the cooperation between an evaporator and a fan in an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0024] Figure 3 is another structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0025] Figure 4 is Figure 3 is a structural schematic diagram of a motor assembly;

[0026] Figure 5 is Figure 3 is a cross-sectional schematic diagram of an arc-shaped track;

[0027] Figure 6 is a blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0028] Figure 7 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0029] Figure 8 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0030] Figure 9 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 10 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0032] Figure 11 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0033] Figure 12 is another blowing mode of an air conditioner indoor unit provided by an embodiment of the present disclosure.

[0034] Reference signs:

[0035] 1: housing;

[0036] 2: arc-shaped track; 21: first arc-shaped track; 22: second arc-shaped track; 23: central segment; 24: first arc-shaped segment; 25: second arc-shaped segment;

[0037] 3: fan; 31: first fan; 32: second fan; 33: pulley;

[0038] 41: first motor assembly; 42: second motor assembly; 43: tilt drive motor; 431: gear; 44: rotation drive motor; 441: motor housing; 4411: rack; 442: first motor;

[0039] 5: track bracket;

[0040] 6: evaporator; 61: first evaporator; 62: second evaporator; 63: third evaporator;

[0041] 7: liquid inlet pipe; 71: first flow dividing section; 72: second flow dividing section; 73: third flow dividing section; 74: liquid inlet section;

[0042] 81: first throttle valve; 82: second throttle valve; 83: third throttle valve;

[0043] 9: liquid outlet pipe. DETAILED DESCRIPTION

[0044] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0045] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0047] In addition, the terms "set", "connected", and "fixed" should be interpreted broadly. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection via an intermediate medium, or internal communication between two devices, elements, or components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific circumstances.

[0048] Unless otherwise specified, the term "plurality" means two or more.

[0049] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0050] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0051] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0052] Wall-mounted air conditioners are widely used in families due to their small size, not occupying the ground installation, economy and other advantages. However, people of different constitutions have different requirements for indoor temperature.

[0053] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0054] The existing air conditioner indoor unit is internally provided with a multi-section evaporator 6, and the outdoor unit is provided with a throttling valve. The refrigerant flowing out of the throttling valve and flowing into each evaporator 6 has the same temperature, which further causes the air outlet temperature at the air outlet to be the same, and the air outlet temperature of different air supply areas of the air outlet cannot be adjusted according to user demand.

[0055] The embodiments of the present disclosure disclose an air conditioner indoor unit and an air conditioner, which adjust the opening degree of the throttling valve corresponding to each evaporator 6, and further adjust the air outlet temperature of different areas of the air outlet of the air conditioner indoor unit.

[0056] In combination with Figure 1As shown, the air conditioner indoor unit provided by the embodiment of the present disclosure comprises a shell 1, a plurality of evaporators 6, a liquid inlet pipe 7, a throttle valve, a liquid outlet pipe 9 and a controller. The lower end of the shell 1 is provided with an air outlet. The plurality of evaporators 6 are arranged in the shell 1 and sequentially arranged along the horizontal direction of the air outlet. The liquid inlet pipe 7 comprises a liquid inlet section 74 and a plurality of shunt sections connected with the liquid inlet section 74, and each shunt section is connected with the first end of each evaporator 6. The throttle valve is arranged at the shunt section of the liquid inlet pipe 7. The liquid outlet pipe 9 is connected with the second end of each evaporator 6. The controller is configured to controllably adjust the opening degree of the throttle valve, thereby adjusting the air outlet temperature of the air outlet.

[0057] By using the air conditioner indoor unit and the air conditioner provided by the embodiment of the present disclosure, the opening degree of each throttle valve is adjusted by the controller, thereby adjusting the refrigerant temperature flowing out of each throttle valve, and further adjusting the air outlet temperature of each evaporator 6. Finally, the air outlet temperatures of different areas at the air outlet are different.

[0058] Optionally, the controller is further configured to acquire a first current temperature and a first set temperature of the evaporator 6 under a refrigeration working condition, and adjust the opening degree of the throttle valve when the difference between the first current temperature and the first set temperature is greater than or equal to a first preset difference.

[0059] Optionally, the air conditioner indoor unit further comprises a first fan 31 and a second fan 32, and the cooperation between the evaporator 6 and the fan 3 is as shown. Figure 2 The evaporator 6 comprises a first evaporator 61, a second evaporator 62 and a third evaporator 63. The throttle valve comprises a first throttle valve 81, a second throttle valve 82 and a third throttle valve 83.

[0060] Specifically, when the air conditioner indoor unit is turned on, the air conditioner is set to horizontal air outlet, and the first fan 31 and the second fan 32 both horizontally blow air. At this time, the first throttle valve 81, the second throttle valve 82 and the third throttle valve 83 are at an initial opening degree, and the initial opening degree is 3%-10%, for example, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%, etc. Among them, the initial opening degrees of the first throttle valve 81, the second throttle valve 82 and the third throttle valve 83 can be the same, or the initial opening degrees of the first throttle valve 81, the second throttle valve 82 and the third throttle valve 83 can be different from each other. After the air conditioner is turned on, the first evaporator 61, the second evaporator 62 and the third evaporator 63 are respectively set to a first set temperature of the first evaporator 61, a first set temperature of the second evaporator 62 and a first set temperature of the third evaporator 63.

[0061] For example, the first evaporator 61, when the air conditioner indoor unit is in a cooling mode, the first current temperature of the first evaporator 61 is obtained. If the first current temperature of the first evaporator 61 is greater than the first set temperature of the first evaporator 61, and the difference between the first current temperature of the first evaporator 61 and the first set temperature of the first evaporator 61 is greater than or equal to the first preset difference, the opening of the first throttle valve 81 is reduced. After the opening of the first throttle valve 81 is reduced, the pressure drop of the refrigerant flowing through the first throttle valve 81 increases, and the temperature drop of the refrigerant flowing out of the first throttle valve 81 after throttling expansion increases, that is, the temperature of the refrigerant flowing into the first evaporator 61 decreases. Further, the fan 3 sends air at a lower temperature, and finally the indoor temperature of the corresponding air supply area is reduced. Conversely, if the first current temperature of the first evaporator 61 is less than the first set temperature of the first evaporator 61, and the difference between the first set temperature of the first evaporator 61 and the first current temperature of the first evaporator 61 is greater than or equal to the first preset difference, the opening of the first throttle valve 81 is increased. After the opening of the first throttle valve 81 is increased, the pressure drop of the refrigerant flowing through the first throttle valve 81 decreases, and the temperature drop of the refrigerant flowing out of the first throttle valve 81 after throttling expansion decreases, that is, the temperature of the refrigerant flowing into the first evaporator 61 increases. Further, the fan 3 sends air at a higher temperature, and finally the indoor temperature of the corresponding air supply area is increased. The opening of the first throttle valve 81 is adjusted every preset time, for example, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes or 10 minutes, etc. The first preset difference is a tolerance. The adjustment mode of the second evaporator 62 and the third evaporator 63 is the same as that of the first evaporator 61. The first preset temperature of the first evaporator 61, the second evaporator 62 and the third evaporator 63 can be adjusted respectively, so as to adjust the outlet air temperature of different areas of the outlet, which is suitable for the case that different customers have different temperature requirements in the same space.

[0062] Specifically, when only one of the first fan 31 and the second fan 32 is turned on, for example, the second fan 32 is turned on and the first fan 31 is turned off. The air conditioner indoor unit is in a cooling mode, the third throttle valve 83 remains in a closed state, and the first throttle valve 81 and the second throttle valve 82 are opened and adjusted in opening according to the above adjustment mode. At this time, the refrigerant only flows through the first evaporator 61 and the second evaporator 62, further optimizing the configuration of the refrigerant, so that the utilization efficiency of the refrigerant is higher.

[0063] The air conditioner indoor unit has a liquid inlet pipe provided with a throttle valve, and the air conditioner outdoor unit does not need to be provided with a throttling device, so that the structure of the air conditioner outdoor unit is simpler. Because the air conditioner indoor unit and the air conditioner outdoor unit are provided with a throttle valve, when the air conditioner indoor unit is in a heating mode, the air conditioner can also be used normally.

[0064] Optionally, the shell 1 includes an arc-shaped upper edge and an arc-shaped lower edge which form the air outlet and protrude outward.

[0065] The air outlet is an arc-shaped air outlet, and a commonly used one-word air outlet has a larger air outlet area. The middle region of the shell 1 corresponding to the arc-shaped air outlet is longer than the two ends.

[0066] Optionally, the plurality of evaporators 6 includes a first evaporator 61, a second evaporator 62, and a third evaporator 63 arranged in sequence along the horizontal direction of the air outlet. The second evaporator 62 is arranged between the first evaporator 61 and the third evaporator 63, the length of the second evaporator 62 is greater than the length of the first evaporator 61, and the lengths of the first evaporator 61 and the third evaporator 63 are the same.

[0067] The first evaporator 61, the second evaporator 62, and the third evaporator 63 are arranged in sequence along the horizontal direction of the air outlet, and the length of the second evaporator 62 is the largest, making full use of the space in the shell 1 of the air conditioner indoor unit, so that the refrigerant flowing through the evaporator 6 is more fully heat-exchanged.

[0068] Optionally, the throttling valve includes a first throttling valve 81, a second throttling valve 82, and a third throttling valve 83.

[0069] Optionally, the flow dividing section includes a first flow dividing section 71, a second flow dividing section 72, and a third flow dividing section 73. The first throttling valve 81 is arranged in the first flow dividing section 71, and the first flow dividing section 71 is connected to the first evaporator 61. The second throttling valve 82 is arranged in the second flow dividing section 72, and the second flow dividing section 72 is connected to the second evaporator 62. The third throttling valve 83 is arranged in the third flow dividing section 73, and the third flow dividing section 73 is connected to the third evaporator 63. Different throttling valves are used to adjust the temperature of the refrigerant in the corresponding evaporator 6.

[0070] The air conditioner indoor unit is provided with a plurality of evaporators 6, and each evaporator 6 is provided with a throttling valve. The opening degree of each throttling valve is adjusted by the controller, so as to adjust the temperature of the refrigerant flowing out of each throttling valve, and further adjust the outlet air temperature of each evaporator 6. Finally, the outlet air temperature of different regions at the air outlet is different.

[0071] Optionally, the plurality of evaporators 6 includes a coil evaporator.

[0072] The coil evaporator has high heat transfer coefficient, compact structure, and small occupied area. In the case of small occupied area, the refrigerant flow path is long, so that the heat exchange of the refrigerant is more sufficient, and the utilization efficiency of the refrigerant is higher.

[0073] Optionally, the air conditioner indoor unit further includes an arc-shaped track 2, a fan 3, and a motor assembly, such as Figure 3 、 Figure 4 and Figure 5As shown in the figure, the arc-shaped track 2 is arranged in the shell 1. The fan 3 is arranged inside the air outlet of the shell 1, and the first end of the fan 3 is connected to the arc-shaped track 2. The motor assembly is arranged in the shell 1 and connected to the second end of the fan 3, and the motor assembly includes an inclination driving motor 43. The inclination driving motor 43 is used to rotate the first end of the fan 3 along the arc-shaped track 2 around the second end of the fan 3, so as to incline the fan 3.

[0074] Unlike the fixed installation of the fan 3 in the existing air conditioner indoor unit, the fan 3 in the air conditioner indoor unit provided by the embodiment of the present disclosure can rotate along the arc-shaped track 2. The arc-shaped track 2 is a regular circular segment, and the regular circle has the second end of the fan 3 as the center and the distance between the first end and the second end of the fan 3 as the radius.

[0075] In the existing air conditioner indoor unit, the fan 3 is fixed, and when it runs, it is perpendicular to the air outlet of the fan 3. The edge air outlet angle at this time is set to 90°, and the air outlet area is from the first end to the second end of the fan 3. When the air conditioner indoor unit provided by the embodiment of the present disclosure runs, the second end of the fan 3 is stationary, and the first end of the fan 3 rotates along the arc-shaped track 2 upward or downward around the second end of the fan 3. For example Figure 9 As shown in the figure, the fan 3 includes a first fan 31 and a second fan 32. The arc-shaped track 2 includes a first arc-shaped track 21 and a second arc-shaped track 22. The first end of the first fan 31 rotates downward along the first arc-shaped track 21, and the first fan 31 is inclined to the left, and the left side air outlet edge angle is greater than 90°. At the same time, the first end of the second fan 32 rotates downward along the second arc-shaped track 22, and the second fan 32 is inclined to the right, and the right side air outlet edge angle is greater than 90°. The increase of the air outlet edge angle on both sides increases the air outlet area of the air conditioner indoor unit.

[0076] The arc-shaped track 2 includes an arc-shaped bottom plate and two side plates. One end of each of the two side plates is arranged vertically on both sides of the arc-shaped bottom plate, and the other end of each of the two side plates extends toward each other in parallel to the arc-shaped bottom plate, and there is a predetermined distance between the two extensions. The height of the side plate is greater than the height of the pulley 33, and the distance between the two extensions is less than the width of the pulley 33, so as to limit the gear within the arc-shaped track 2.

[0077] The air outlet is an arc-shaped air outlet. Compared with a linear air outlet, the arc-shaped air outlet has a larger air outlet edge angle, which further expands the air supply area of the air conditioner indoor unit.

[0078] Optionally, the motor assembly further includes a rotation driving motor 44, as shown in the figure Figure 4The rotating driving motor 44 includes a motor housing 441 and a first motor 442 arranged in the motor housing 441, and the first motor 442 is used to drive the fan 3 to run out of wind. The motor housing 441 is provided with a rack 4411 arranged along the outer surface thereof in a circumferential direction, and the tilting driving motor 43 includes a gear 431. The rack 4411 of the motor housing 441 is engaged with the gear 431, so that the first end of the fan 3 rotates along the arc-shaped track 2 around the second end of the fan 3.

[0079] The rotating driving motor 44 is connected to the shell 1 through a universal joint.

[0080] Through the universal joint, the rotating driving motor 44 is fixed to the shell 1, and at the same time, the rotating driving motor 44 can rotate around the universal joint.

[0081] Optionally, the tilting driving motor 43 is arranged below the motor housing 441 of the rotating driving motor 44, and the rack 4411 is arranged on the outer surface of the lower side of the motor housing 441.

[0082] Arranging the tilting driving motor 43 below the motor housing 441 of the rotating driving motor 44, the tilting driving motor 43 not only drives the fan 3 to rotate, but also supports the rotating driving motor 44.

[0083] The lower side of the motor housing 441 is arc-shaped, and the corresponding rack 4411 is arc-shaped, as shown in Figure 4 In the initial state, the gear 431 is engaged with the central part of the rack 4411. When the gear 431 runs, the engagement part becomes the left or right rack 4411, at which time the driving rotating motor 44 rotates rightward or leftward, and the rotating track corresponds to the arc shape of the outer surface of the lower side of the motor housing 441. The arc-shaped rotation of the driving rotating motor 44 further drives the fan 3 connected to the motor assembly to rotate in an arc shape.

[0084] Optionally, the shell 1 includes an upper shell located on the upper side of the air outlet and a lower shell located on the lower side of the air outlet, and the arc-shaped track 2 includes a central segment 23 and a first arc-shaped segment 24. The first arc-shaped segment 24 extends to the upper shell or the lower shell along the central segment 23.

[0085] As shown in Figure 6 The fan 3 includes a first fan 31 and a second fan 32. The arc-shaped track 2 includes a first arc-shaped track 21 and a second arc-shaped track 22. When the first arc-shaped segment 24 extends to the upper shell along the central segment 23, the second fan 32 can rotate upward along the first arc-shaped segment 24, and the second fan 32 tilts leftward. As shown in Figure 7 When the first arc-shaped segment 24 extends to the lower shell along the central segment 23, the second fan 32 can rotate downward along the first arc-shaped segment 24, and the second fan 32 tilts rightward.

[0086] Optionally, the arc-shaped track 2 further comprises a second arc-shaped segment 25. The first arc-shaped segment 24 extends along the central segment 23 to the upper housing, and the second arc-shaped segment 25 extends along the central segment 23 to the lower housing. The distance from any point of the arc-shaped track 2 to the second end of the fan 3 is the same.

[0087] As Figures 6 to 12 The fan 3 comprises a first fan 31 and a second fan 32. The arc-shaped track 2 comprises a first arc-shaped track 21 and a second arc-shaped track 22. By providing two arc-shaped segments, the first fan 31 can rotate upwards or downwards along the first arc-shaped track 21, and the second fan 32 can rotate upwards or downwards along the second arc-shaped segment 24. By different rotating directions of the first fan 31 and the second fan 32, various air supply modes are formed.

[0088] The distance from any point of the arc-shaped track 2 to the second end of the fan 3 is the same, which can be understood as that the arc-shaped track 2 is a circular arc segment with the second end of the fan 3 as the center and the distance from the first end to the second end of the fan 3 as the radius. The arc-shaped track 2 supports the first end of the fan 3.

[0089] Optionally, the first end of the fan 3 is provided with a pulley 33 sliding along the arc-shaped track 2.

[0090] Optionally, the fan 3 comprises a first fan 31 and a second fan 32. The motor assembly comprises a first motor assembly 41 and a second motor assembly 42. The arc-shaped track 2 comprises a first arc-shaped track 21 and a second arc-shaped track 22. The first motor assembly 41 is arranged on one side of the housing 1 and used to drive the first fan 31 to rotate and tilt along the first arc-shaped track 21. The second motor assembly 42 is arranged on the other side of the housing 1 and used to drive the second fan 32 to rotate and tilt along the second arc-shaped track 22.

[0091] For example, in the first motor assembly 41, when the tilt driving motor 43 operates, the gear 431 rotates to drive the meshed rack 4411 to displace, i.e., the rotation driving motor 44 rotates to the left or to the right, thereby driving the first fan 31 to tilt downwards or upwards. The first fan 31 tilting downwards or upwards can be understood as that the first end of the first fan 31 rotates along the second arc-shaped segment 25 of the first arc-shaped track 21 around the second end of the first fan 31, or the first end of the first fan 31 rotates along the first arc-shaped segment 24 of the first arc-shaped track 21 around the second end of the first fan 31.

[0092] Similarly, in the second motor assembly 42, when the tilt driving motor 43 operates, the gear 431 rotates to drive the meshed rack 4411 to displace, i.e., the rotation driving motor 44 rotates to the left or to the right, thereby driving the second fan 32 to tilt upward or downward. The second fan 32 tilting upward or downward can be understood as the first end of the second fan 32 rotating around the second end of the second fan 32 along the first arc segment 24 of the second arc-shaped track 22, or the first end of the second fan 32 rotating around the second end of the second fan 32 along the second arc segment 25 of the second arc-shaped track 22.

[0093] Optionally, the air conditioner indoor unit further comprises a track support 5 for supporting the first arc-shaped track 21 and the second arc-shaped track 22. Wherein, two ends of the track support 5 are connected to the front wall and the rear wall of the shell 1 respectively.

[0094] The track support 5 fixes the first arc-shaped track 21 and the second arc-shaped track 22 to the shell 1, and makes the first arc-shaped track 21 and the second arc-shaped track 22 in the same vertical plane parallel to the rear wall of the shell 1.

[0095] Optionally, the fan 3 comprises a cross-flow fan, an axial fan or a centrifugal fan.

[0096] Optionally, the air conditioner indoor unit further comprises a control unit. The control unit is configured to adjust the sliding distance of the first fan 31 on the first arc-shaped track 21 and / or the sliding distance of the second fan 32 on the second arc-shaped track 22 according to the air supply mode.

[0097] Through the tilting rotation of the fan 3, the air conditioner indoor unit provided by the embodiments of the present disclosure can provide multiple air supply modes.

[0098] In one embodiment, when the air conditioner indoor unit is in the straight blowing mode, the fan 3 is as shown in FIG. 2A, i.e., the first fan 31 and the second fan 32 are in the horizontal position, and air is supplied at the same time. Figure 3

[0099] In one embodiment, when the air conditioner indoor unit is in the one-way air supply mode, the fan 3 is as shown in FIG. 2B and FIG. 2C. Figure 6 Figure 7

[0100] As shown in FIG. 2D, when the air conditioner indoor unit is in the left one-way air supply mode, the first fan 31 rotates downward along the second arc segment 25 of the first arc-shaped track 21, and the second fan 32 rotates upward along the first arc segment 24 of the second arc-shaped track 22. At this time, the air outlet directions of the first fan 31 and the second fan 32 are both to the left, realizing left one-way air supply. Figure 6 As shown in FIG. 2E, when the air conditioner indoor unit is in the right one-way air supply mode, the first fan 31 rotates upward along the first arc segment 24 of the first arc-shaped track 21, and the second fan 32 rotates downward along the second arc segment 25 of the second arc-shaped track 22. At this time, the air outlet directions of the first fan 31 and the second fan 32 are both to the right, realizing right one-way air supply.

[0101] Figure 7 ​​​​When the air conditioner indoor unit is in the right-side unidirectional air supply mode, the first fan 31 rotates upward along the first arc segment 24 of the first arc track 21, and the second fan 32 rotates downward along the second arc segment 25 of the second arc track 22. At this time, the air discharge direction of the first fan 31 and the second fan 32 is both to the right, realizing right-side unidirectional air supply.

[0102] In one embodiment, when the indoor unit of the air conditioner is in the middle air supply mode, the fan 3 is as follows: Figure 8 As shown, the first fan 31 rotates upward along the first curved segment 24 of the first curved track 21, while the second fan 32 rotates upward along the first curved segment 24 of the second curved track 22. At this point, the first fan 31 blows air to the right, while the second fan 32 blows air to the left. The air from the air conditioner indoor unit is concentrated in the center area, achieving center-directed air delivery. This center-directed air delivery mode is particularly suitable for narrow and long spaces.

[0103] In one embodiment, when the air conditioner indoor unit is in the wide-angle air supply mode, the fan 3 is as follows: Figure 9 As shown, the first fan 31 rotates downward along the second curved section 25 of the first curved track 21, while the second fan 32 rotates downward along the second curved section 25 of the second curved track 22. At this point, the first fan 31 blows air to the left, while the second fan 32 blows air to the right. The air outlets of the air conditioner indoor unit are located on both sides, and no air is supplied in the middle, achieving wide-angle air supply. This lack of air supply in the middle effectively prevents direct airflow from the air conditioner.

[0104] In one embodiment, when the air conditioner indoor unit is in single-fan one-way air supply mode, fan 3 is as follows: Figure 10 and Figure 11 shown.

[0105] like Figure 10 When the air conditioner indoor unit is in the left-side one-way air supply mode with the first fan 31, the first fan 31 turns on and rotates downward along the second curved section 25 of the first curved track 21. Simultaneously, the second fan 32 turns off. At this point, the first fan 31 blows air to the left, and no air is supplied to the middle and right areas.

[0106] like Figure 11 When the air conditioner indoor unit is in the right-side one-way air supply mode with the second fan 32, the first fan 31 is turned off. Simultaneously, the second fan 32 is turned on and rotates downward along the second arc segment 25 of the second arc track 22. At this time, the second fan 32 blows air to the right, and no air is supplied to the middle area or the left area.

[0107] The single fan 3 unidirectional air supply mode is more suitable for different users in the same space with different temperature requirements. Compared with the aforementioned unidirectional air supply mode, the single fan 3 unidirectional air supply mode has a more concentrated air supply area.

[0108] In one embodiment, when the air conditioner indoor unit is in the automatic swing-to-global air supply mode, the fan 3 is as follows: Figure 12 As shown, the first fan 31 and the second fan 32 rotate upward or downward along the first curved track 21 and the second curved track 22, respectively, to achieve full-area air supply mode. The automatic swing full-area air supply mode has a flexible air supply direction and a large air supply area. It is more suitable for situations where multiple users in the air supply space are sensitive to direct airflow, such as when the air supply space is crowded with elderly people and children.

[0109] In any of the above embodiments, the gear positions of the first fan 31 and the second fan 32 can be adjusted independently, that is, the air output intensities of the first fan 31 and the second fan 32 can be adjusted independently to meet different air demand requirements.

[0110] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner indoor unit characterized by comprising: The air conditioner indoor unit comprises: a shell, a lower end of which is provided with an air outlet; a plurality of evaporators arranged in the shell and sequentially arranged along the horizontal direction of the air outlet; a liquid inlet pipe comprising a liquid inlet section and a plurality of shunt sections connected to the liquid inlet section, each shunt section being connected to a first end of each evaporator; a throttle valve arranged in the shunt section of the liquid inlet pipe; a liquid outlet pipe connected to a second end of each evaporator; and a controller configured to controllably adjust the opening degree of the throttle valve to adjust the air outlet temperature of the air outlet. a fan arranged on one side of the air outlet in the shell, a first end of the fan being connected to an arc-shaped track, and a second end of the fan being connected to a motor assembly, the motor assembly comprising an inclination driving motor and a rotation driving motor, the inclination driving motor being used to make the first end of the fan rotate around the second end of the fan along the arc-shaped track to make the fan incline, the rotation driving motor comprising a motor shell and a first motor arranged in the motor shell, the first motor being used to drive the fan to rotate, an arc-shaped outer surface of the lower side of the motor shell being provided with an arc-shaped rack, the inclination driving motor comprising a gear, the rack of the motor shell being engaged with the gear, the inclination driving motor being arranged below the motor shell of the rotation driving motor, in an initial state, the gear is engaged with the central part of the rack, when the gear operates, the engagement part becomes the left or right rack, at this time, the driving rotation motor rotates to the right or to the left, the shell comprises an upper shell located on the upper side of the air outlet and a lower shell located on the lower side of the air outlet, the arc-shaped track comprises a central section, a first arc-shaped section and a second arc-shaped section, the first arc-shaped section extends to the upper shell along the central section, the second arc-shaped section extends to the lower shell along the central section, the fan can rotate upward along the first arc-shaped section, and the fan can rotate downward along the second arc-shaped section. The controller is further configured to: 2.The indoor unit of the air conditioner according to claim 1, characterized by, obtain a first current temperature and a first set temperature of the evaporator under a refrigeration working condition, and adjust the opening degree of the throttle valve when the difference between the first current temperature and the first set temperature is greater than or equal to a first preset difference.

3. The air conditioner indoor unit according to claim 1, wherein the shell comprises an arc-shaped upper edge and an arc-shaped lower edge which form the air outlet and protrude outward.

4. The air conditioner indoor unit according to claim 3, wherein the plurality of evaporators comprise a first evaporator, a second evaporator and a third evaporator sequentially arranged along the horizontal direction of the air outlet, wherein the second evaporator is arranged between the first evaporator and the third evaporator, the length of the second evaporator is greater than the length of the first evaporator, and the lengths of the first evaporator and the third evaporator are the same.

5. The air conditioner indoor unit according to claim 4, wherein the throttle valve comprises a first throttle valve, a second throttle valve and a third throttle valve; the shunt section comprises a first shunt section, a second shunt section and a third shunt section, ​ The first throttling valve is arranged in the first flow dividing section connected to the first evaporator; the second throttling valve is arranged in the second flow dividing section connected to the second evaporator; and the third throttling valve is arranged in the third flow dividing section connected to the third evaporator, and different throttling valves are used to adjust the temperature of the refrigerant in the corresponding evaporator. 6.The air conditioner indoor unit of claim 4, wherein The plurality of evaporators include coil evaporators. 7.The air conditioner indoor unit of claim 1, wherein The fan includes a first fan and a second fan, The first fan and the second fan are arranged in the air outlet side of the housing in a transverse and side-by-side manner. 8.The air conditioner indoor unit of claim 1, wherein The fan includes a cross-flow fan, an axial fan, or a centrifugal fan.

9. An air conditioner characterized by comprising: An air conditioner indoor unit as claimed in any one of claims 1 to 8.

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