Indoor unit of air conditioner

Abstract

The invention discloses an air conditioner indoor unit which is provided with an air outlet, hot air or cold air blown out of the air conditioner indoor unit can be blown into a room through the air outlet, and an air guide assembly is arranged at the air outlet. According to the air conditioner, the first air deflector and the second air deflector can rotate to seal the air outlet or change the opening degree of the air outlet, so that different air outlet effects can be achieved in a refrigerating mode or a heating mode of the air conditioner, and the air outlet amount and the temperature adjusting effect of the air conditioner are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an indoor unit of an air conditioner. Background Art

[0002] The air conditioner uses an air guide assembly to guide the airflow blown out of the air outlet, and the air outlet of the air conditioner is also provided with a grille for rectifying the blown airflow. In the prior art, usually only one air guide plate is provided, and the air guide plate can only swing along the air outlet, resulting in a single air outlet mode, which cannot meet the requirements of effectively rectifying the airflow under different working conditions, and even hinders the airflow blown out from certain angles, affecting the air volume and temperature adjustment effect of the air conditioner. Summary of the invention

[0003] The main purpose of the present invention is to propose an air-conditioning indoor unit, which aims to solve the above-mentioned problems and has a larger air outlet range, better air supply comfort, and can meet the use requirements of different working conditions.

[0004] To achieve the above object, the present invention provides an air conditioner indoor unit, comprising: A housing, wherein an air duct is formed in the housing, and the air duct has an air outlet; and The air guide assembly is arranged at the air outlet, and the air guide assembly includes a first air guide plate and a second air guide plate. The first air guide plate and the second air guide plate can be rotated to close the air outlet or change the opening of the air outlet.

[0005] Optionally, a circumferentially extending length of the first air guide plate is greater than a circumferentially extending length of the second air guide plate, and the air guide assembly further includes a louver wind sweeping device, which is mounted on the first air guide plate.

[0006] Optionally, outer surfaces of the first air guide plate and the second air guide plate on a side away from the shutter wind sweeping device are both arc-shaped, and the center of the circle where the outer surface is located coincides with the rotation center of the first air guide plate and the second air guide plate.

[0007] Optionally, the louver wind sweeping device includes a louver wind sweeping structure, a plurality of wind sweeping blades of the louver wind sweeping structure are arranged at intervals along the rotation axis of the first air guide plate and can swing along the rotation axis of the first air guide plate, and the louver wind sweeping structure is snap-fitted with the first air guide plate.

[0008] Optionally, the first air guide plate is hollow, a slot is provided in the middle of the first air guide plate, the shutter wind sweeping structure is provided with a buckle corresponding to the slot, and the buckle is engaged with the slot.

[0009] Optionally, the first air guide plate has reinforcing ribs extending inwardly from the edge of the slot of the card slot, and under the action of external force, the reinforcing ribs can abut against the hollow cavity wall of the first air guide plate.

[0010] Optionally, one side of the air duct includes a volute tongue section and an air outlet section connected to the volute tongue section, the air guide assembly is correspondingly arranged at the air outlet section, the part of the air outlet section close to the air outlet is suitable for bending to form an arc-shaped avoidance portion, and the first air guide plate and the second air guide plate can be rotatably placed at the arc-shaped avoidance portion.

[0011] Optionally, a side of the first air guide plate facing the louver wind sweeping device is a concave arc surface, and a side of the second air guide plate facing the louver wind sweeping device is a convex curved surface or a flat surface.

[0012] Optionally, the air-conditioning indoor unit includes a first air outlet mode. In the first air outlet mode, the first air guide plate is located at the arc-shaped avoidance portion, and the second air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening and the second opening are similar in size.

[0013] Optionally, the air conditioner indoor unit includes a second air outlet mode. In the second air outlet mode, the first air guide plate is located at the arc-shaped avoidance portion, and the second air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening is larger than the second opening.

[0014] Optionally, the air conditioner indoor unit includes a third air outlet mode. In the third air outlet mode, the second air guide plate is located at the arc-shaped avoidance portion, and the first air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening and the second opening are similar in size.

[0015] Optionally, the air-conditioning indoor unit includes a fourth air outlet mode. In the fourth air outlet mode, the second air guide plate is located at the arc-shaped avoidance portion, and the first air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening is larger than the second opening.

[0016] Optionally, first lugs are provided at both ends of the first air guide plate, and first rotating shafts are provided on the two first lugs, and the two first rotating shafts are in the same direction; Second lugs are provided at both ends of the second air guide plate, and first shaft holes are provided on the second lugs corresponding to the first rotating shaft, and the first rotating shaft is inserted into the first shaft hole.

[0017] Optionally, the air guide assembly further comprises an air guide bracket, both ends of the air guide bracket are provided with mounting cylinders, and the two mounting cylinders are provided with hollow second axial holes protruding in the middle facing each other; The periphery of the first shaft hole is protruded in a direction toward the first lug to form a second rotating shaft, and the second rotating shaft is inserted into the second shaft hole.

[0018] Optionally, the air guide assembly further includes two drive motors, one of the drive motors is disposed in the mounting cylinder, one of the drive motors drives the first air guide plate, and the other of the drive motors drives the second air guide plate.

[0019] Optionally, the first air guide plate is further provided with a connecting lug between the two first lugs, and the connecting lug is provided with a connecting shaft hole, and the second air guide plate is further provided with a mounting lug between the two second lugs, and the mounting lug is provided with a mounting shaft, and the mounting shaft cooperates with the connecting shaft hole.

[0020] In the technical solution of the present invention, the indoor unit of the air conditioner has an air outlet, and the hot air or cold air blown out by the indoor unit of the air conditioner can be blown into the room through the air outlet. The air guide assembly is arranged at the air outlet, and the first air guide plate and the second air guide plate can be rotated to close the air outlet or change the opening of the air outlet, so as to guide the airflow blown out from the air outlet. The first air guide plate and the second air guide plate jointly close the air outlet, which can improve the appearance of the air conditioner and reduce the size of the gap in the appearance compared to using only one air guide plate to close the air outlet. A single wind shield is limited by the manufacturing process and the error in the assembly process, and the appearance gap with the air outlet is large in the closed state and the start-up state. In this way, by setting the first air guide plate and the second air guide plate, not only the appearance problem can be solved, but also different air outlet effects can be achieved in the cooling mode or heating mode of the air conditioner, thereby improving the air volume and temperature control effect of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 1 It is a structural schematic diagram of an embodiment of an air conditioner indoor unit of the present invention; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the middle air guide assembly when the air outlet is closed; Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the indoor unit of the air conditioner when it is in the first air outlet mode; Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the indoor unit of the air conditioner when it is in the second air outlet mode; Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the indoor unit of the air conditioner when it is in the third air outlet mode; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of the indoor unit of the air conditioner in the fourth air outlet mode Figure 7 for Figure 1 A structural schematic diagram of an embodiment in which the middle air guide assembly is installed on a chassis; Figure 8 for Figure 7 A schematic structural diagram of an embodiment of a middle air guide bracket; Fig. 9 for Figure 7 A schematic structural diagram of an embodiment of a first air guide plate and a second air guide plate; Fig.10 for Fig. 9 Exploded view of .

[0023] Description of Figure Numbers:

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The air conditioner uses an air guide assembly to guide the airflow blown out of the air outlet, and the air outlet of the air conditioner is also provided with a grille for rectifying the blown airflow. In the prior art, usually only one air guide plate is provided, and the air guide plate can only swing along the air outlet, resulting in a single air outlet mode, which cannot meet the requirements of effectively rectifying the airflow under different working conditions, and even hinders the airflow blown out from certain angles, affecting the air volume and temperature adjustment effect of the air conditioner.

[0030] To this end, the present invention proposes an air-conditioning indoor unit, which aims to solve the above-mentioned problems and has a larger air outlet range, better air supply comfort, and can meet the use requirements of different working conditions.

[0031] In one embodiment of the present invention, Figures 1 to 6 As shown, the air conditioner indoor unit 100 includes a shell 110 and an air guide assembly 130. An air duct 120 is formed in the shell 110, and the air duct 120 has an air outlet 124. The air guide assembly 130 is arranged at the air outlet 124, and includes a first air guide plate 140 and a second air guide plate 150. The first air guide plate 140 and the second air guide plate 150 can be rotated to close the air outlet 124 or change the opening of the air outlet 124.

[0032] Reference Figures 1 to 10The housing 110 includes a chassis 111 and a face frame 112. The chassis 111 and the face frame 112 cooperate to form an air duct 120. The air duct 120 has an air outlet 124. The hot air or cold air blown out by the air conditioner indoor unit 100 can be blown into the room through the air outlet 124. The air guide assembly 130 is arranged at the air outlet 124. The air outlet 124 can be rotatably closed or the opening of the air outlet 124 can be changed through the first air guide plate 140 and the second air guide plate 150, so as to guide the airflow blown out from the air outlet 124. In this way, different air outlet effects can be achieved in the cooling mode or heating mode of the air conditioner through the arrangement of the first air guide plate 140 and the second air guide plate 150, and the airflow under different working conditions can be effectively rectified to improve the air volume and temperature adjustment effect of the air conditioner.

[0033] Reference Figure 2 Moreover, the first air guide plate 140 and the second air guide plate 150 jointly close the air outlet 124, which can improve the appearance of the air conditioner and reduce the size of the gap in appearance compared to using a single air guide plate to close the air outlet 124. A single windshield plate is limited by the manufacturing process and the error in the assembly process, and the appearance gap with the air outlet 124 is large in the closed state and the start-up state. In this way, the first air guide plate 140 and the second air guide plate 150 are set, which can not only solve the appearance problem, but also enable the air conditioner to achieve different air outlet effects in the cooling mode or heating mode, thereby improving the air volume and temperature control effect of the air conditioner.

[0034] It should be noted that rotation means that the first air guide plate 140 and the second air guide plate 150 cooperate to close the air outlet 124 by rotating around the center of a circle; or, the opening of the air outlet 124 is changed, thereby controlling the airflow blown out from the air outlet 124.

[0035] The opening of the air outlet 124 refers to the process from when the air outlet 124 is completely blocked by the first air guide plate 140 and the second air guide plate 150 to when it is exposed. The more area of ​​the air outlet 124 is exposed, the larger the opening of the air outlet 124 is, and vice versa.

[0036] Specifically, the length of the first air guide plate 140 extending along its circumference is greater than the length of the second air guide plate 150 extending along its circumference, and the air guide assembly 130 further includes a shutter wind sweeping device, which is installed on the first air guide plate 140. The length of the first air guide plate 140 is greater than that of the second air guide plate 150, and the shutter wind sweeping device has the function of adjusting the airflow horizontally and vertically. The shutter wind sweeping device is installed on the first air guide plate 140, and the structural strength of the first air guide plate 140 is higher, which can improve the service life of the air conditioner, and the installation of the shutter wind sweeping device and the first air guide plate 140 is also more convenient. In the closed state, the first air guide plate 140 better blocks the shutter wind sweeping device, thereby improving the appearance performance of the product.

[0037] Furthermore, the outer surfaces of the first air guide plate 140 and the second air guide plate 150 on the side away from the shutter wind sweeping device are both arc-shaped, and the center of the circle where the outer surface is located coincides with the rotation center of the first air guide plate 140 and the second air guide plate 150. The center of the outer arc of the existing air guide plate does not coincide with its rotation center, which results in a larger appearance gap in the closed state and the start-up state, and in the process of air blowing out of the air outlet 124, air leakage is prone to occur, and turbulence is generated at the air guide plate to affect the air outlet effect. It can be imagined that the air outlet 124 is usually a rectangular cross-section, and the movement trajectory of the first air guide plate 140 and the second air guide plate 150 is a circle. In this way, the circle is placed in the rectangle, and the first air guide plate 140 and the second air guide plate 150 can be closer to the cavity wall of the air outlet 124, so that they are regarded as part of the air outlet 124, reducing the problem of air leakage and improving the problem of large appearance gap affecting the appearance.

[0038] Reference Figures 2 to 6 In order to further solve the problems of air leakage and appearance, one side of the air duct 120 includes a volute tongue section 121 and an air outlet section 122 connected to the volute tongue section 121, and the air guide component 130 is correspondingly arranged at the air outlet section 122. The part of the air outlet section 122 close to the air outlet 124 is suitable for bending to form an arc-shaped avoidance portion 123, and the first air guide plate 140 and the second air guide plate 150 can be rotatably placed at the arc-shaped avoidance portion 123.

[0039] The volute tongue section 121 and the air outlet section 122 are parts of the air duct 120 formed by the surface frame 112. As described above, the outer surfaces of the first air guide plate 140 and the second air guide plate 150 are arc-shaped. In this way, when the first air guide plate 140 and the second air guide plate 150 are located in the arc-shaped avoidance portion 123, they are equivalent to being regarded as parts connected to the volute tongue section 121 to form the air duct 120. In this way, the problem of air leakage during the heating process or the cooling process can be solved, and the problem of large appearance gap can also be overcome.

[0040] Specifically, the shutter wind sweeping device includes a shutter wind sweeping structure 160, a plurality of wind sweeping blades of the shutter wind sweeping structure 160 are arranged at intervals along the rotation axis of the first wind guide plate 140 and can swing along the rotation axis of the first wind guide plate 140, and the shutter wind sweeping structure 160 is engaged with the first wind guide plate 140. The wind sweeping blades include blades in the vertical wind direction and blades in the horizontal wind direction, which are connected in series by a pull rod, and when working, they are driven by a motor to swing in the vertical direction or in the horizontal direction.

[0041] Reference Figure 2, the wind sweeping blades are installed on the first wind guide plate 140. In order to control the weight of the first wind guide plate 140 and facilitate the installation of the first wind guide plate 140, in one embodiment, the first wind guide plate 140 is hollow, a slot 141 is provided in the middle of the first wind guide plate 140, and the shutter wind sweeping structure 160 is provided with a buckle 161 corresponding to the slot 141, and the buckle 161 is engaged with the slot 141. Compared with the arrangement of the slot 141 on the shutter wind sweeping structure 160, the first wind guide plate 140 is hollow, and the arrangement of the slot 141 is more convenient. Moreover, the hollow first wind guide plate 140 has a space for deformation, and the arrangement of the slot 141 on the first wind guide plate 140 is more convenient.

[0042] In this way, by using a hollow air guide plate, the structural strength of the first air guide plate 140 is improved while the weight of the first air guide plate 140 is reduced; the first air guide plate 140 and the louver wind sweeping structure 160 are connected by a clip-on method, which reduces the number of screws, thereby ensuring stability while improving the efficiency of the installation process.

[0043] In another embodiment, the first air guide plate 140 is an arc-shaped curved plate.

[0044] Reference Figure 2 Furthermore, in order to improve the structural strength and facilitate installation, the first air guide plate 140 has a reinforcing rib 142 extending inward from the edge of the slot 141. Under the action of external force, the reinforcing rib 142 can abut against the hollow cavity wall of the first air guide plate 140. A plurality of slots 141 are provided in the length direction of the first air guide plate 140, for example, at the end and / or the middle position. During installation, because the first air guide plate 140 is hollow, when the buckle 161 is pressed against the slot 141, the side of the first air guide plate 140 where the slot 141 is located will be deformed and recessed inward. During this process, due to the length of the first air guide plate 140, deformation in the middle position may more easily lead to a weaker installation force point. Therefore, a reinforcing rib 142 is provided in the slot 141, which abuts against the hollow cavity wall during deformation to provide reverse support force, thereby facilitating installation and improving the structural strength of the snap-fit ​​position. In this way, during the subsequent disassembly process, the stability of the subsequent installation will not be affected by the deformation of the notch of the slot 141.

[0045] In order to better improve the air volume and temperature control effect of the air conditioner, the side of the first air guide plate 140 facing the shutter wind sweeping device is a concave arc surface, and the side of the second air guide plate 150 facing the shutter wind sweeping device is a convex curved surface or plane. The concave arc surface of the first air guide plate 140 and the convex curved surface or plane of the second air guide plate 150 can guide the airflow, so that different air outlet effects can be achieved in the cooling mode or heating mode of the air conditioner by coordinating the positions of the first air guide plate 140 and the second air guide plate 150, thereby improving the air volume and temperature control effect of the air conditioner.

[0046] The first air guide plate 140 is longer than the second air guide plate 150, and the concave arc surface of the first air guide plate 140 guides the airflow, and the convex curved surface or plane of the second air guide plate 150 also guides the airflow. The direction of the airflow passing through the first air guide plate 140 is the same as that of the concave arc surface, and the convex curved surface or plane of the second air guide plate 150 has an adsorption effect on the airflow, so that when the first air guide plate 140 is located in the arc-shaped avoidance portion 123, the airflow will be deflected downward.

[0047] On the contrary, when the first air guide plate 140 is below and the second air guide plate 150 is above, that is, the arc-shaped avoidance portion 123, the first air guide plate 140 is longer than the second air guide plate 150, so that the air flow can be transported farther, thereby increasing the air guide range and improving the comfort of air supply.

[0048] According to the size of the air outlet 124 opened by the first air guide plate 140 and the second air guide plate 150 in the cooling mode or the heating mode, the air conditioning indoor unit 100 has different air outlet modes.

[0049] Reference Figure 3 Specifically, in the heating mode, the air conditioner indoor unit 100 includes a first air outlet mode. In the first air outlet mode, the first air guide plate 140 is located at the arc-shaped avoidance portion 123, and the second air guide plate 150 is located on the other side of the air duct 120. The first air guide plate 140 and the second air guide plate 150 form a first opening 131 and a second opening 132 closer to the air outlet 124 in the outflow direction of the airflow, and the first opening 131 and the second opening 132 are similar in size.

[0050] It should be noted that the similar sizes of the first opening 131 and the second opening 132 here means that, in the flow direction of the airflow, the sizes of the openings at both ends of the channel between the first air guide plate 140 and the second air guide plate 150 are almost the same, for example, the difference between the area of ​​the first opening 131 and the area of ​​the second opening 132 is not greater than 0.1 mm2.

[0051] In the first mode, hot air passes through the first air guide plate 140 and the second air guide plate 150 from the air duct 120. Since the length of the first air guide plate 140 is greater than that of the second air guide plate 150, a downward gap is formed between the first air guide plate 140 and the second air guide plate 150. The outer surface of the first air guide plate 140 is suitable for being placed in the arc-shaped avoidance portion 123, and no air leakage problem will occur. The inner surface of the first air guide plate 140 is a concave arc surface, and the outer surface of the second air guide plate 150 is a convex curved surface or plane. In this way, the airflow generates an adsorption effect through the second air guide plate 150, and is guided to the gap through the first air guide plate 140 and remains. The hot air can sink better along the wall, so that the heating air volume can be increased, the air supply angle is larger, and the air supply effect is better.

[0052] Reference Figure 4 In the heating mode, the air conditioner indoor unit 100 includes a second air outlet mode. In the second air outlet mode, the first air guide plate 140 is located at the arc-shaped avoidance portion 123, and the second air guide plate 150 is located on the other side of the air duct 120. The first air guide plate 140 and the second air guide plate 150 form a first opening 131 and a second opening 132 closer to the air outlet 124 in the outflow direction of the airflow, and the first opening 131 is larger than the second opening 132.

[0053] Since the length of the first air guide plate 140 is greater than that of the second air guide plate 150, a downward gap is formed between the first air guide plate 140 and the second air guide plate 150. The outer surface of the first air guide plate 140 is suitable for being placed in the arc-shaped avoidance portion 123, and no air leakage problem will occur. The inner surface of the first air guide plate 140 is a concave arc surface, and the outer surface of the second air guide plate 150 is a convex curved surface or plane. In this way, the airflow generates an adsorption effect through the second air guide plate 150, and the first opening 131 and the second opening 132 form a trumpet mouth with a larger inner side and a smaller outer side. In this way, the hot air is concentrated and blown out from the second opening 132, forming a fixed-point concentrated heat supply, which can quickly perform heating. For example, the air-conditioning indoor unit 100 is provided with an infrared sensor to monitor the position of human activities. The first air guide plate 140 rotates toward the arc-shaped avoidance portion 123 to a specific position or a specific angle, and the second air guide plate 150 rotates oppositely to a specific position or a specific angle. At the same time, the air sweeping blades of the louver air sweeping device swing according to the position of human activities, thereby achieving fixed-point rapid heating and improving user experience.

[0054] Reference Figure 5In the cooling mode, the air conditioner indoor unit 100 includes a third air outlet mode. In the third air outlet mode, the second air guide plate 150 is located at the arc-shaped avoidance portion 123, and the first air guide plate 140 is located on the other side of the air duct 120. The first air guide plate 140 and the second air guide plate 150 form a first opening 131 and a second opening 132 closer to the air outlet 124 in the outflow direction of the airflow, and the first opening 131 and the second opening 132 are similar in size. Since the length of the first air guide plate 140 is greater than that of the second air guide plate 150, the length of the arc-shaped avoidance portion 123 is greater than that of the second air guide plate 150, and the length of the arc-shaped avoidance portion 123 is slightly greater than or equal to the length of the first air guide plate 140, the outer surface of the second air guide plate 150 is suitable for being placed at the arc-shaped avoidance portion 123, and no air leakage problem will occur. In this way, the first air guide plate 140 is equivalent to cooperating with the arc-shaped avoidance portion 123 to form the air outlet section 122, and the inner surface of the first air guide plate 140 is a concave arc surface, and the outer surface of the second air guide plate 150 is a convex curved surface or plane. In this way, the airflow generates an adsorption effect through the second air guide plate 150, and the first opening 131 and the second opening 132 are of similar size. In this way, in the cooling mode, the cooperation of the first air guide plate 140 and the second air guide plate 150 makes the cold air outlet smooth, the air volume attenuation is small, the air supply range is wider, and the user experience is better.

[0055] Reference Figure 6 In the cooling mode, the air conditioner indoor unit 100 includes a fourth air outlet mode. In the fourth air outlet mode, the second air guide plate 150 is located at the arc-shaped avoidance portion 123, and the first air guide plate 140 is located at the other side of the air duct 120. The first air guide plate 140 and the second air guide plate 150 form a first opening 131 and a second opening 132 closer to the air outlet 124 in the outflow direction of the airflow, and the first opening 131 is larger than the second opening 132. The first opening 131 and the second opening 132 form a trumpet mouth with a large inner part and a small outer part, so that the cold air is concentrated and blown out from the second opening 132, forming a fixed-point centralized cooling, and the cold air can be quickly transported. For example, the air conditioner indoor unit 100 is provided with an infrared sensor to monitor the position of human activities, the second air guide plate 150 rotates to a specific position or a specific angle toward the arc-shaped avoidance portion 123, and the first air guide plate 140 rotates to a specific position or a specific angle in the opposite direction. At the same time, the wind sweeping blades of the shutter wind sweeping device swing according to the human activity position, so as to achieve fixed-point rapid heating and improve the user experience.

[0056] In this way, this scheme can achieve different air outlet effects in the cooling mode or heating mode of the air conditioner through the arrangement of the first air guide plate 140 and the second air guide plate 150. The air guide effect can be optimized by the arrangement of the inner and outer surfaces of the first air guide plate 140 and the second air guide plate 150. The arrangement of the arc-shaped avoidance portion 123 of the air outlet section 122 can solve the problems of air leakage and appearance gap between the first air guide plate 140 and the second air guide plate 150, avoid the different lengths of the first air guide plate 140 and the second air guide plate 150, and realize effective rectification of the airflow under different working conditions, thereby improving the air output and temperature control effect of the air conditioner.

[0057] The hot air or cold air blown out by the indoor unit 100 of the air conditioner can be blown into the room through the air outlet 124. The air guide assembly 130 is arranged at the air outlet 124. The first air guide plate 140 and the second air guide plate 150 can be rotated to close the air outlet 124 or change the opening of the air outlet 124, so as to guide the airflow blown out from the air outlet 124. The first air guide plate 140 and the second air guide plate 150 jointly close the air outlet 124. Compared with using a single air guide plate to close the air outlet, the appearance of the air conditioner can be improved and the size of the gap in the appearance can be reduced. A single windshield plate is limited by the manufacturing process and the error in the assembly process, and the appearance gap with the air outlet 124 is large in the closed state and the start-up state. In this way, the arrangement of the first air guide plate 140 and the second air guide plate 150 can not only solve the problem of appearance, but also enable different air outlet effects to be achieved in the cooling mode or heating mode of the air conditioner, thereby improving the air volume and temperature adjustment effect of the air conditioner.

[0058] When making a specific selection, the user can select the required mode through the remote control or APP, that is, select the first mode, the second mode, the third mode or the fourth mode. In other words, in the cooling mode and the heating mode, there are two different air outlet modes: fast and normal.

[0059] In cooling mode (heating also works on the same principle), the air conditioner first draws a large amount of air from the room, passes through the filter, and enters the evaporator. At the same time, the compressor works to turn the refrigerant into high-pressure gas. The high-pressure gaseous refrigerant passes through the condenser of the outdoor unit and becomes a high-pressure liquid, while releasing a large amount of heat. Then the high-pressure liquid refrigerant passes through the throttling device and becomes a low-temperature and low-pressure liquid, and finally enters the evaporator of the indoor unit. At this time, the low-temperature and low-pressure refrigerant evaporates and absorbs heat, and the temperature of the air entering the evaporator is lowered, and it is blown out through the fan blades, thereby lowering the temperature of the room.

[0060] Combined with reference Figures 7 to 10 , regarding the assembly of the first air guide plate 140 and the second air guide plate 150.

[0061] The first air guide plate 140 and the second air guide plate 150 are driven respectively by two driving motors 180. The driving of the louver wind sweeping device can be combined with the driving motors 180 of the first air guide plate 140 and the second air guide plate 150. For example, the driving motor 180 of the first air guide plate 140 drives the swing of the vertical wind sweeping blades, and the driving motor 180 of the second air guide plate 150 drives the swing of the horizontal wind sweeping blades. The driving of the louver wind sweeping device can also be driven by a separate driving motor 180.

[0062] Specifically, first lugs 143 are provided at both ends of the first air guide plate 140, and first rotating shafts 144 are provided on both first lugs 143, and the directions of the two first rotating shafts 144 are the same; second lugs 151 are provided at both ends of the second air guide plate 150, and first shaft holes 152 are provided on the second lugs 151 corresponding to the first rotating shafts 144, and the first rotating shaft 144 is inserted into the first shaft holes 152. In this way, the first air guide plate 140 and the second air guide plate 150 can realize concentric rotation under the drive of different driving motors 180.

[0063] like Fig. 9 As shown, the two first lugs 143 of the first air guide plate 140 and the two second lugs 151 of the second air guide plate 150 are arranged in sequence, that is, in an AB, AB connection mode. Fig. 9 Starting from the left side, the first lug 143 is connected to the second lug 151, and the first lug 143 is connected to the second lug 151 on the right side. The first lug 143 is located on the left side, so that the first air guide plate 140 and the second air guide plate 151 are easier to assemble.

[0064] Furthermore, in order to ensure that the first air guide plate 140 and the second air guide plate 150 are stable and not prone to shaking, thereby ensuring the air guiding effect in the cooling mode or the medium heating mode, the air guide assembly 130 also includes an air guide bracket 170, and mounting cylinders 171 are provided at both ends of the air guide bracket 170. The two mounting cylinders 171 are provided with hollow second axial holes 172 protruding from the middle facing each other; the periphery of the first axial hole 152 is protruded along the direction toward the first lug 143 to form a second rotating shaft 153, and the second rotating shaft 153 is inserted into the second axial hole 172. During installation, the air guide bracket 170 is installed on the chassis 111 of the air-conditioning indoor unit 100, and the first air guide plate 140 is placed in the second axial hole 172 of the air guide bracket 170 through the second rotating shaft 153 of the first lug 143, and the second air guide plate 150 is connected to the first rotating shaft 144 of the first air guide plate 140 through the first axial hole 152 of the second lug 151, so that the first lug 143 and the second lug 151 are both located at the mounting cylinder 171, and the first axial hole 152 and the second axial hole 172 are arranged in the same way. The driving shaft of the driving motor 180 can pass through the middle and connect the first air guide plate 140 and the second air guide plate 150 respectively, so that the first air guide plate 140 and the second air guide plate 150 can realize concentric rotation under the drive of different driving motors 180.

[0065] The air guide bracket 170 is connected to the chassis 111 by a snap-on connection, which makes installation more convenient. Compared with directly installing the air guide assembly 130 and the louver wind sweeping device on the chassis 111, the air guide bracket 170 has a more stable structure, less interference between the first air guide plate 140 and the second air guide plate 150, and smoother movement.

[0066] In order to reduce the rotational friction between the first air guide plate 140 and the second air guide plate 150, reduce interference, make the rotation smoother, and increase the service life of the first air guide plate 140 and the second air guide plate 150, the fitting clearance between the second rotating shaft 153 of the second lug 151 of the second air guide plate 150 and the second axial hole 172 of the air guide bracket 170 is smaller than the fitting clearance between the first axial hole 152 of the second air guide plate 150 and the first rotating shaft 144 of the first lug 143 of the first air guide plate 140. This can reduce the rotational friction between the first air guide plate 140 and the second air guide plate 150, weaken the rotational influence between each other, and make the rotation smoother.

[0067] Specifically, the air guide assembly 130 also includes two drive motors 180, one drive motor 180 is arranged in a mounting cylinder 171, one drive motor 180 drives the first air guide plate 140, and the other drive motor 180 drives the second air guide plate 150. The drive motor 180 is arranged in the mounting cylinder 171. On the one hand, the drive motor 180 can be hidden, and on the other hand, the drive motor 180 can also be protected to avoid interference.

[0068] Furthermore, in order to ensure that the first air guide plate 140 and the second air guide plate 150 rotate more stably and have better stability when playing the wind guiding role and reduce the generation of noise, the first air guide plate 140 is also provided with a connecting lug 145 between the two first lugs 143, and the connecting lug 145 is provided with a connecting shaft hole 146. The second air guide plate 150 is also provided with a mounting lug 154 between the two second lugs 151, and the mounting lug 154 is provided with a mounting shaft 155, which cooperates with the connecting shaft hole 146.

[0069] The connecting lug 145 is arranged in the middle position of the first air guide plate 140, and the extension direction of the mounting shaft 155 is toward the length direction of the first air guide plate 140. In this way, after being embedded in the mounting shaft hole during installation, the interference with the first air guide plate 140 and the second air guide plate 150 in the length direction is small, and it can also play a role in pre-fixing the first air guide plate 140 and the second air guide plate 150, which is convenient for the subsequent assembly of the first air guide plate 140 and the second air guide plate 150 and the air guide bracket 170. In this way, only one set of mounting lugs 154 and connecting lugs 145 are needed to play a transmission and connection role in the middle of the first air guide plate 140 and the second air guide plate 150, which can ensure that the rotation of the first air guide plate 140 and the second air guide plate 150 is more stable and the stability when playing the wind guiding role is better, thereby reducing the generation of noise and will not reduce the air supply effect.

[0070] The present invention also proposes an air conditioner (not shown in the figure), which includes an air conditioner indoor unit 100 and an air conditioner outdoor unit (not shown in the figure). The specific structure of the air conditioner indoor unit 100 refers to the above embodiment. Since the air conditioner adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the air conditioner outdoor unit and the air conditioner outdoor unit are connected by a pipeline to form a refrigerant circuit. Without loss of generality, the air conditioner indoor unit 100 and the air conditioner outdoor unit can also be an integrated unit.

[0071] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: a housing, wherein an air duct is formed in the housing, and the air duct has an air outlet; and The air guide assembly is arranged at the air outlet, and the air guide assembly includes a first air guide plate and a second air guide plate. The first air guide plate and the second air guide plate can be rotated to close the air outlet or change the opening of the air outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The length of the first air guide plate extending along its circumference is greater than the length of the second air guide plate extending along its circumference. The air guide assembly also includes a louver wind sweeping device, and the louver wind sweeping device is installed on the first air guide plate.

3. The air conditioner indoor unit according to claim 2, characterized in that: The outer surfaces of the first air guide plate and the second air guide plate on a side away from the shutter wind sweeping device are both arc-shaped, and the center of the circle where the outer surface is located coincides with the rotation center of the first air guide plate and the second air guide plate.

4. The air conditioner indoor unit according to claim 2, characterized in that: The shutter wind sweeping device includes a shutter wind sweeping structure, wherein a plurality of wind sweeping blades of the shutter wind sweeping structure are arranged at intervals along the rotation axis of the first air guide plate and can swing along the rotation axis of the first air guide plate, and the shutter wind sweeping structure is snap-fitted with the first air guide plate.

5. The air conditioner indoor unit according to claim 4, characterized in that: The first air guide plate is hollow, a slot is provided in the middle of the first air guide plate, and a buckle is provided in the shutter wind sweeping structure corresponding to the slot, and the buckle is engaged with the slot.

6. The air conditioner indoor unit according to claim 5, characterized in that: The first air guide plate is provided with reinforcing ribs extending inwardly from the edge of the slot of the clamping slot. Under the action of external force, the reinforcing ribs can abut against the hollow cavity wall of the first air guide plate.

7. The air conditioner indoor unit according to claim 2, characterized in that: One side of the air duct includes a volute tongue section and an air outlet section connected to the volute tongue section, the air guide component is correspondingly arranged at the air outlet section, the part of the air outlet section close to the air outlet is suitable for bending to form an arc-shaped avoidance portion, and the first air guide plate and the second air guide plate can be rotatably placed at the arc-shaped avoidance portion.

8. The air conditioner indoor unit according to claim 7, characterized in that: The side of the first air guide plate facing the louver wind sweeping device is an inwardly concave arc surface, and the side of the second air guide plate facing the louver wind sweeping device is an outwardly convex curved surface or a flat surface.

9. The air conditioner indoor unit according to claim 8, characterized in that: The air conditioner indoor unit includes a first air outlet mode. In the first air outlet mode, the first air guide plate is located at the arc-shaped avoidance portion, and the second air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening and the second opening are similar in size.

10. The air conditioner indoor unit according to claim 8, characterized in that: The air conditioner indoor unit includes a second air outlet mode. In the second air outlet mode, the first air guide plate is located at the arc-shaped avoidance portion, and the second air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening is larger than the second opening.

11. The air conditioner indoor unit according to claim 8, characterized in that: The air conditioner indoor unit includes a third air outlet mode. In the third air outlet mode, the second air guide plate is located at the arc-shaped avoidance portion, and the first air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening and the second opening are similar in size.

12. The air conditioner indoor unit according to claim 8, characterized in that: The air conditioner indoor unit includes a fourth air outlet mode. In the fourth air outlet mode, the second air guide plate is located at the arc-shaped avoidance portion, and the first air guide plate is located on the other side of the air duct. The first air guide plate and the second air guide plate form a first opening and a second opening closer to the air outlet in the outflow direction of the airflow, and the first opening is larger than the second opening.

13. The air conditioner indoor unit according to claim 1, characterized in that: First lugs are provided at both ends of the first air guide plate, and first rotating shafts are provided on the two first lugs, and the two first rotating shafts are in the same direction; Second lugs are provided at both ends of the second air guide plate, and first shaft holes are provided on the second lugs corresponding to the first rotating shaft, and the first rotating shaft is inserted into the first shaft hole.

14. The air conditioner indoor unit according to claim 13, characterized in that: The wind guide assembly also includes a wind guide bracket, and mounting cylinders are provided at both ends of the wind guide bracket, and two mounting cylinders are provided with hollow second shaft holes protruding in the middle facing each other; The periphery of the first shaft hole is protruded in a direction toward the first lug to form a second rotating shaft, and the second rotating shaft is inserted into the second shaft hole.

15. The air conditioner indoor unit according to claim 14, characterized in that: A gap between the second rotating shaft and the second shaft hole is smaller than a gap between the first shaft hole and the first rotating shaft.

16. The air conditioner indoor unit according to claim 13, characterized in that: The first air guide plate is further provided with a connecting lug between the two first lugs, and a connecting shaft hole is provided on the connecting lug. The second air guide plate is further provided with a mounting lug between the two second lugs, and a mounting shaft is provided on the mounting lug, and the mounting shaft matches the connecting shaft hole.

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