Air conditioner indoor unit and air conditioner

Abstract

The present invention provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises: a shell, the shell comprises an air inlet and a first air outlet, a chamber is arranged in the shell, the air inlet and the first air outlet are both connected to the chamber, and the chamber is used to accommodate the fan of the air conditioner indoor unit; an air mixing structure is arranged in the shell, the air mixing structure comprises an inlet, a second air outlet, an ejection part and an air mixing flow channel, the inlet is connected to the first air outlet and the air mixing flow channel, the ejection part and the second air outlet are both connected to the air mixing flow channel, and the ejection part is located between the inlet and the second air outlet; wherein the flow cross-sectional area of ​​the air mixing flow channel at the inlet is greater than the flow cross-sectional area of ​​the air mixing flow channel at the ejection part. The present invention reasonably arranges the structure of the air conditioner indoor unit so that the temperature of the air flow flowing out of the air mixing structure is closer to the room temperature, the air volume is larger, and the wind speed is softer, thereby reducing the irritation caused by the air flow blowing to the human body.

Description

Technical Field

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

[0002] In the related art, the air supply method of the air conditioner is to send cold and hot air into the room and then slowly convect with the surrounding air. This air supply method has a poor heat exchange effect. In addition, the single cold and hot air flow directly blows the user through the air supply port, which makes the user feel uncomfortable when using the air conditioner, resulting in a poor user experience. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides an air conditioner indoor unit.

[0005] A second aspect of the present invention provides an air conditioner.

[0006] In view of this, one aspect of the present invention proposes an air-conditioning indoor unit, the air-conditioning indoor unit comprising: a shell, the shell comprising an air inlet and a first air outlet, a chamber is arranged in the shell, the air inlet and the first air outlet are both connected with the chamber, the chamber is used to accommodate the fan of the air-conditioning indoor unit; an air mixing structure, arranged in the shell, the air mixing structure comprises an inlet, a second air outlet, an ejection part and an air mixing flow channel, the inlet is connected with the first air outlet and the air mixing flow channel, the ejection part and the second air outlet are both connected with the air mixing flow channel, and the ejection part is located between the inlet and the second air outlet; wherein, the flow cross-sectional area of ​​the mixed air flow channel at the inlet is greater than the flow cross-sectional area of ​​the mixed air flow channel at the ejection part.

[0007] An air conditioner indoor unit provided by the present invention comprises a housing and an air mixing structure. The housing comprises an air inlet and a first air outlet, and a chamber is arranged in the housing, and the chamber can at least accommodate a fan of the air conditioner indoor unit, and the chamber can also accommodate a heat exchanger of the air conditioner indoor unit. When the air conditioner indoor unit is working, the fan drives the air flow so that the indoor air enters the chamber from the air inlet, flows to the air mixing structure from the first air outlet, and then is discharged from the air conditioner indoor unit from the second air outlet of the air mixing structure.

[0008] Specifically, since the flow cross-sectional area of ​​the mixed air flow channel at the inlet is larger than the flow cross-sectional area of ​​the mixed air flow channel at the ejection part, after the airflow flows into the mixed air structure from the inlet, the dynamic pressure at the ejection part is smaller than the dynamic pressure at the inlet, that is, the mixed air flow channel forms a negative pressure at the ejection part, so the indoor air is guided to be replenished into the mixed air flow channel through the ejection part. In other words, the airflow flowing out of the second air outlet is the sum of the airflow flowing out of the first air outlet of the housing and the indoor air replenished by the ejection part.

[0009] It can be understood that the airflow flowing out of the first air outlet of the housing is the airflow after heat exchange by the heat exchanger of the indoor unit of the air conditioner, while the airflow supplemented by the ejection part is the airflow that has not been heat exchanged by the heat exchanger. Therefore, the airflow flowing out of the second air outlet is the mixed airflow formed by the airflow flowing out of the first air outlet of the housing and the indoor air supplemented by the ejection part in the air mixing channel, so that the temperature of the airflow flowing out of the air mixing structure is closer to the room temperature, the air volume is larger, and the wind speed is softer, thereby reducing the stimulation caused by the airflow blowing to the human body, making the user feel more comfortable.

[0010] In addition, the airflow flowing out of the second air outlet is the airflow flowing out of the first air outlet of the shell, and is mixed and disturbed with the indoor air supplied by the injection portion, which accelerates the flow of indoor air and increases the circulation of indoor air. The circulating wind can guide the cold and warm air flows in the horizontal or vertical direction, and is more conducive to generating a gentle and comfortable airflow indoors, thereby making the indoor temperature evenly increase or decrease, thereby improving the comfort of the human body.

[0011] The air conditioner indoor unit according to the present invention may also have the following additional technical features:

[0012] In the above technical solution, further, the air mixing channel includes a first channel, and the first channel is located between the inlet and the ejection part; wherein, from the ejection part to the second air outlet, the flow cross-sectional area of ​​the first channel gradually decreases.

[0013] In this technical solution, the air mixing structure includes a first flow channel, and the first flow channel is located between the inlet and the ejection part. By reasonably setting the first flow channel structure, the flow cross-sectional area of ​​the first flow channel gradually decreases from the ejection part to the second air outlet. In other words, the flow cross-sectional area of ​​the first flow channel at the ejection part is smaller. In other words, the dynamic pressure of the air mixing channel at the ejection part is smaller, so that the air mixing channel forms a negative pressure at the ejection part, thereby guiding the indoor air to be replenished into the air mixing channel through the ejection part.

[0014] Furthermore, the flow cross-sectional area of ​​the first flow channel gradually decreases from the ejection portion to the second air outlet. That is, from the ejection portion to the second air outlet, the airflow flows along the continuous flow channel formed by the inner wall of the first flow channel. The continuous flow channel formed by the inner wall of the first flow channel has the function of pressure diffusion. The airflow velocity flowing into the first air outlet is relatively large, and the continuous flow channel with uniformly reduced flow area reduces the deflection of the airflow, reduces the flow loss of the airflow, and converts more energy into dynamic pressure. Avoid the situation where the flow loss of the airflow is large due to excessive velocity, the aerodynamic performance is poor, and the air volume is reduced.

[0015] In addition, the first flow channel has the function of collecting flow, reducing the frequency of airflow separation, flow separation, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0016] In any of the above technical solutions, further, the air mixing flow channel includes a second flow channel, and the second flow channel is located between the injection part and the second air outlet; wherein, from the injection part to the second air outlet, the flow cross-sectional area of ​​the second flow channel is uniform or gradually increases.

[0017] In this technical solution, the air mixing channel includes a second channel, and the second channel is located between the ejection part and the second air outlet. By reasonably setting the structure of the second channel, the flow cross-sectional area of ​​the second channel from the ejection part to the second air outlet is equal or gradually increases, which is conducive to reducing the wind speed, making the air flow speed flowing out of the air mixing structure softer, thereby reducing the stimulation caused by the air flow blowing to the human body, making the user feel more comfortable.

[0018] In any of the above technical solutions, further, the second air outlet is an annular structure distributed along the circumference of the air inlet.

[0019] In this technical solution, by reasonably setting the structure of the second air outlet, the second air outlet is made into an annular structure distributed along the circumference of the air inlet. This setting expands the air outlet area of ​​the second air outlet, can meet the use requirements of air outlet at various angles, and fully utilizes the natural sinking of cold air, and the temperature in the horizontal plane at different heights in the room is uniform.

[0020] In any of the above technical solutions, further, there are multiple second air outlets, and the multiple second air outlets are arranged at intervals along the circumference of the air inlet.

[0021] In this technical solution, there are multiple second air outlets, and by reasonably setting the structure of multiple second air outlets, multiple second air outlets are arranged at intervals along the circumference of the air inlet. This setting expands the air outlet area of ​​the second air outlet, can meet the use requirements of air outlet at various angles, and fully utilizes the natural sinking of cold air, and the temperature in the horizontal plane at different heights in the room is uniform. In addition, this setting has the advantage of good overall structural strength.

[0022] In any of the above technical solutions, further, the ejection portion is an annular structure distributed along the circumference of the air inlet.

[0023] In this technical solution, by reasonably setting the structure of the ejection part, the ejection part is made into an annular structure distributed along the circumference of the air inlet. This setting expands the air supply area at the ejection part, which can meet the use requirements of air supply at various angles, so as to meet the mixed air requirements under different working conditions.

[0024] In any of the above technical solutions, further, there are multiple ejection parts, and the multiple ejection parts are arranged at intervals along the circumference of the air inlet.

[0025] In this technical solution, there are multiple ejection parts. By reasonably setting the distribution structure of the multiple ejection parts, the multiple ejection parts are arranged at circumferential intervals along the air inlet. This setting expands the air supply area at the ejection part, which can meet the use requirements of air supply at various angles, so as to meet the mixed air requirements under different working conditions.

[0026] In any of the above technical solutions, further, the air mixing structure includes: a first plate body, connected to the shell, and the first plate body is provided with an inlet; a second plate body, connected to the first plate body, and the second plate body is provided with an ejection portion, the area between the first plate body and the second plate body forms an air mixing flow channel, and the edge of the first plate body and the edge of the second plate body enclose a second air outlet.

[0027] In this technical solution, the air mixing structure includes a first plate body and a second plate body, wherein the first plate body is provided with an inlet, the second plate body is provided with an ejection portion, the area between the first plate body and the second plate body is an air mixing channel, and the edge of the first plate body and the edge of the second plate body enclose a second air outlet.

[0028] When the indoor unit of the air conditioner is working, the fan drives the air flow so that the indoor air enters the chamber from the air inlet, flows from the first air outlet to the entrance of the first plate body, and then flows from the entrance to the mixed air flow channel between the first plate body and the second plate body. After the air flow flows into the mixed air flow channel from the entrance, the dynamic pressure at the ejection part is smaller than the dynamic pressure at the entrance, that is, the mixed air flow channel forms a negative pressure at the ejection part, so it will guide the indoor air to be replenished into the mixed air flow channel through the ejection part of the second plate body. Finally, the mixed air flow is discharged from the indoor unit of the air conditioner through the second air outlet surrounded by the edge of the first plate body and the edge of the second plate body.

[0029] This setting rationally arranges the structures of the shell, the first plate body and the second plate body, so that the airflow flowing out of the second air outlet is the airflow flowing out of the first air outlet of the shell and the indoor air replenished by the inlet portion of the second plate body, which are mixed between the first plate body and the second plate body to form a new comfortable mixed airflow, so that the temperature of the airflow flowing out of the second air outlet is closer to the room temperature and the wind speed is softer, thereby reducing the stimulation brought by the airflow blowing to the human body and making the user feel more comfortable.

[0030] In any of the above technical solutions, further, the air inlet is located at the bottom of the shell; the second plate body is connected to the side of the first plate body facing away from the shell; the first plate body is provided with a first avoidance port, the second plate body is provided with a second avoidance port, and the first avoidance port connects the second avoidance port and the air inlet; wherein the inlet is located between the first avoidance port and the edge of the first plate body.

[0031] In this technical solution, the air inlet is located at the bottom of the shell, and the first avoidance port of the first plate body is connected to the second avoidance port and the air inlet of the second plate body, that is, the air inlet is at the bottom of the air conditioner indoor unit and the air outlet is at the side. This setting realizes the separation of the air inlet path and the air outlet path of the air conditioner indoor unit, so that the airflow discharged from the second air outlet after heat exchange can be avoided from being sucked into the air inlet, and the heat exchange efficiency of the air conditioner can be guaranteed. In addition, this setting is conducive to expanding the air outlet range of the air conditioner indoor unit, making the distribution of the spatial temperature field more uniform, and the cooling or heating effect is better.

[0032] Furthermore, the second plate body is connected to the side of the first plate body facing away from the shell body, and the first avoidance port is connected to the second avoidance port and the air inlet, so as to avoid the situation where the first plate body and the second plate body block the air inlet, thereby ensuring that air enters from the bottom of the air conditioner indoor unit, and providing effective and reliable structural support for the separation of the air inlet path and the air outlet path.

[0033] In any of the above technical solutions, further, the second plate body extends from the edge of the inlet, first in a direction away from the first plate body, then in a direction toward the first plate body, and then in a direction away from the first plate body.

[0034] In this technical solution, by reasonably setting the structure of the second plate, the second plate first extends from the edge of the inlet in a direction away from the first plate, then extends in a direction toward the first plate, and then extends in a direction away from the first plate. That is, the second plate will not block the air inlet, and by reasonably defining the shape of the second plate, the flow cross-sectional area of ​​the air mixing channel between the second plate and the first plate gradually decreases and then gradually increases from the ejection portion to the second air outlet.

[0035] Specifically, from the ejection part to the second air outlet, the flow cross-sectional area of ​​the space between the second plate body and the first plate body first gradually decreases. This setting is to reduce the dynamic pressure of the mixed air flow channel at the ejection part, so that the mixed air flow channel forms a negative pressure at the ejection part, providing effective structural support. Since the mixed air flow channel forms a negative pressure at the ejection part, the indoor air will be guided to be replenished into the mixed air flow channel through the ejection part.

[0036] Among them, from the ejection part to the second air outlet, the flow cross-sectional area of ​​the space between the second plate body and the first plate body gradually decreases, that is, from the ejection part to the second air outlet, the airflow flows along the mixed air channel formed by the wall surface of the second plate body and the wall surface of the first plate body. The mixed air channel has the function of expanding pressure. The airflow velocity flowing into the first air outlet is relatively large, and the continuous flow channel with uniformly reduced flow area reduces the deflection of the airflow, reduces the flow loss of the airflow, and converts more energy into dynamic pressure. Avoid the situation where the flow loss of the airflow is large due to excessive velocity, the aerodynamic performance is poor, and the air volume is reduced.

[0037] In addition, the air mixing channel has the function of collecting flow, reducing the frequency of air flow separation, de-flow, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0038] Specifically, from the ejection part to the second air outlet, the flow cross-sectional area of ​​the air mixing passage between the second plate body and the first plate body first gradually decreases, and then gradually increases. This setting is conducive to reducing the wind speed, making the wind speed of the air flow out of the air mixing structure softer, thereby reducing the stimulation caused by the air flow blowing to the human body, making the user feel more comfortable.

[0039] In any of the above technical solutions, further, the first plate body is an annular plate, and the second plate body includes: a first annular portion, a first end of the first annular portion is connected to the first plate body, and the second end of the first annular portion extends in a direction away from the first plate body; a second annular portion, a third end of the second annular portion is connected to the second end of the first annular portion, and the fourth end of the second annular portion extends in the direction of the first plate body; a third annular portion extends from the fourth end of the second annular portion in a direction away from the first plate body; wherein the ejection portion is located at the connection between the second annular portion and the third annular portion.

[0040] In this technical solution, the second plate body includes a first annular portion, a second annular portion and a third annular portion. The second annular portion is located between the first annular portion and the third annular portion, and the second annular portion is connected to both the first annular portion and the third annular portion. By reasonably defining the matching structure of the first annular portion, the second annular portion and the third annular portion, the flow cross-sectional area of ​​the air mixing flow channel between the second plate body and the first plate body gradually decreases and then gradually increases from the ejection portion to the second air outlet.

[0041] Furthermore, the ejection portion is located at the connection between the second annular portion and the third annular portion, that is, the dynamic pressure at the ejection portion is ensured to be smaller than the dynamic pressure at the inlet, providing effective structural support for the formation of negative pressure in the mixed air flow channel at the ejection portion.

[0042] Specifically, the first plate body is an annular plate, and the edge of the first plate body and the edge of the third annular portion enclose the second air outlet in an annular structure. This arrangement expands the air outlet area of ​​the second air outlet, can meet the use requirements of air outlet at various angles, fully utilizes the natural sinking of cold air, and makes the temperature in the horizontal plane at different heights in the room uniform.

[0043] Specifically, the ejection part is located at the connection between the second annular part and the third annular part. The ejection part is an annular structure. This setting expands the air supply area at the ejection part and can meet the use requirements of air supply at various angles to meet the mixed air requirements under different working conditions.

[0044] In any of the above technical solutions, further, the air conditioner indoor unit also includes: a flow guide pipe, a first end of the flow guide pipe is connected to the first air outlet, and a second end of the flow guide pipe is connected to the inlet.

[0045] In this technical solution, the indoor unit of the air conditioner further includes a guide pipe, and the first end of the guide pipe is connected to the first air outlet, and the second end of the guide pipe is connected to the inlet by reasonably setting the matching structure of the guide pipe, the first air outlet, and the inlet. That is, the first air outlet and the inlet are connected through the guide pipe. In other words, the first air outlet and the inlet are indirectly connected.

[0046] The airflow flows along the inner wall of the guide tube. The flow channel formed by the inner wall of the guide tube has the function of expanding pressure. The airflow velocity flowing into the first air outlet is relatively large. When it flows through the guide tube, the deflection of the airflow is reduced, the flow loss of the airflow is reduced, and more energy is converted into dynamic pressure. This avoids the situation where the flow loss of the airflow is large, the aerodynamic performance is poor, and the air volume is reduced due to excessive velocity.

[0047] In addition, the guide pipe has the function of collecting flow, reducing the frequency of air flow separation, flow separation, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0048] In any of the above technical solutions, further, there are multiple first air outlets, inlets and guide pipes, each guide pipe is connected to a first air outlet and an inlet, and the guide pipes are arranged at intervals along the circumference of the air inlet.

[0049] In this technical solution, the number of the first air outlet, the inlet and the guide pipe are all multiple, and each guide pipe is connected to one first air outlet and one inlet by reasonably setting the matching structure of the multiple first air outlets, the multiple inlets and the multiple guide pipes. This arrangement allows indoor air to flow into the air inlet through the gap between two adjacent guide pipes while ensuring the air volume of the shell outlet, which is beneficial to increase the air volume of the air inlet of the air conditioner indoor unit, and further beneficial to improve the heat exchange efficiency of the air conditioner.

[0050] In any of the above technical solutions, further, the air conditioner indoor unit also includes: a baffle, which is movably arranged on the air mixing structure, and the baffle is located at the ejection part, and the baffle is used to adjust the flow cross-sectional area of ​​the ejection part.

[0051] In this technical solution, the indoor unit of the air conditioner further includes a baffle, and the baffle is movably arranged on the air mixing structure, and the baffle moves to adjust the area of ​​the baffle shielding the ejection part, and then adjust the flow cross-sectional area of ​​the ejection part to meet the use requirements of different working conditions. It can be understood that according to different use requirements, the position relationship between the baffle and the ejection part is adjusted, and then the flow cross-sectional area of ​​the ejection part is adjusted to adjust the mixing ratio of the airflow flowing from the first air outlet into the air mixing channel and the airflow entering the air mixing channel from the ejection part.

[0052] Specifically, the air conditioner includes a controller, which is connected to the baffle, and the controller is used to control the movement of the baffle to adjust the flow cross-sectional area of ​​the injection part. This setting can improve the automation of the product and is conducive to improving the performance of the product.

[0053] In any of the above technical solutions, further, the ratio of the air flow rate at the injection portion to the air flow rate at the first air outlet satisfies: 0.05 to 0.2.

[0054] In this technical solution, the ratio of the airflow rate at the ejection part to the airflow rate at the first air outlet is set to be greater than or equal to 0.05 and less than or equal to 0.2. In this way, the mixing ratio of the airflow flowing out of the first air outlet of the housing and the indoor air replenished by the ejection part can be guaranteed, so as to ensure that the temperature of the airflow flowing out of the mixed air flow channel is closer to the room temperature and the wind speed is softer, thereby reducing the stimulation caused by the airflow blowing to the human body, making the user feel more comfortable.

[0055] If the ratio of the air flow rate at the injection part to the air flow rate at the first air outlet is greater than 0.2, the indoor air supplied by the injection part is relatively large, which will affect the mixing temperature of the air flow in the mixed air channel, thereby reducing the heat exchange efficiency of the air conditioner indoor unit.

[0056] If the ratio of the air flow rate at the injection part to the air flow rate at the first air outlet is less than 0.05, the temperature of the air flow out of the mixing flow channel will be greatly different from the room temperature, which will make the user feel uncomfortable when using the air conditioner, resulting in a poor user experience.

[0057] Specifically, the air conditioner indoor unit further includes: a fan located in the chamber; a heat exchanger located in the chamber, and the heat exchanger is located between the fan and the first air outlet.

[0058] The indoor unit of the air conditioner includes a fan and a heat exchanger. The fan and the heat exchanger are both located in the chamber, and the heat exchanger is located between the fan and the first air outlet. The fan works to drive the air flow so that the indoor air enters the chamber from the air inlet, and the air flow flows from the first air outlet to the air mixing structure after heat exchange in the heat exchanger, and then is discharged from the indoor unit of the air conditioner through the second air outlet of the air mixing structure.

[0059] A second aspect of the present invention provides an air conditioner, comprising: an air conditioner indoor unit as in the first aspect.

[0060] Since the air conditioner provided by the present invention includes the air conditioner indoor unit as in the first aspect, it has all the beneficial effects of the above-mentioned air conditioner indoor unit, which will not be described one by one here.

[0061] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0063] Figure 1 A schematic structural diagram of an air-conditioning indoor unit from a first perspective according to an embodiment of the present invention is shown;

[0064] Figure 2 for Figure 1 A local enlarged view of point A;

[0065] Figure 3 A schematic structural diagram of an air-conditioning indoor unit from a second viewing angle according to an embodiment of the present invention is shown;

[0066] Figure 4 A schematic structural diagram of an air-conditioning indoor unit from a third viewing angle according to an embodiment of the present invention is shown;

[0067] Figure 5 A schematic structural diagram of an air-conditioning indoor unit from a fourth viewing angle according to an embodiment of the present invention is shown;

[0068] Figure 6 A schematic structural diagram of an air-conditioning indoor unit from a fifth viewing angle is shown according to an embodiment of the present invention;

[0069] Figure 7 A cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention is shown;

[0070] Figure 8 A wind speed effect diagram of an air conditioner indoor unit provided by an embodiment of the present invention is shown;

[0071] Fig. 9 The figure shows the temperature distribution effect of the indoor unit of the air conditioner provided by one embodiment of the present invention in the cooling mode at a height of 0.5 m from the ground;

[0072] Fig.10 The figure shows the temperature distribution effect of the indoor unit of the air conditioner provided by one embodiment of the present invention in the cooling mode at a distance of 1 m from the ground;

[0073] Fig.11 The figure shows the temperature distribution effect of the indoor unit of the air conditioner provided by one embodiment of the present invention in the cooling mode at a height of 1.5 m from the ground;

[0074] Fig.12 The figure shows the temperature distribution effect of the indoor unit of the air conditioner provided by one embodiment of the present invention in the cooling mode at a height of 1.8 m from the ground;

[0075] Fig.13 A temperature distribution effect diagram of an air-conditioning indoor unit provided by an embodiment of the present invention in a heating mode at a height of 0.5 m from the ground is shown;

[0076] Fig.14 A temperature distribution effect diagram of an air-conditioning indoor unit provided by an embodiment of the present invention at a distance of 1 m from the ground in a heating mode is shown;

[0077] Fig.15 The figure shows the temperature distribution effect of the indoor unit of the air conditioner provided by one embodiment of the present invention in the heating mode at a height of 1.5 m from the ground;

[0078] Fig.16 The figure shows the temperature distribution effect of an air-conditioning indoor unit provided by an embodiment of the present invention in heating mode at a distance of 1.8 m from the ground.

[0079] in, Figures 1 to 7 The corresponding relationship between the reference numerals and component names in the figure is:

[0080] 110 shell, 112 air inlet, 114 first air outlet, 116 chamber, 120 air mixing structure, 122 inlet, 124 second air outlet, 126 ejection part, 128 air mixing channel, 130 first channel, 132 second channel, 134 first plate, 136 second plate, 140 first annular part, 142 second annular part, 144 third annular part, 150 guide pipe, 200 air conditioner indoor unit, 210 fan, 220 heat exchanger. DETAILED DESCRIPTION

[0081] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0082] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0083] Refer to the following Figures 1 to 16 The air conditioner indoor unit 200 and the air conditioner according to some embodiments of the present invention are described.

[0084] Embodiment 1:

[0085] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, an embodiment of the first aspect of the present invention provides an air-conditioning indoor unit 200 , which includes a housing 110 and an air mixing structure 120 .

[0086] The shell 110 includes an air inlet 112 and a first air outlet 114 . A chamber 116 is disposed in the shell 110 . The air inlet 112 and the first air outlet 114 are both connected to the chamber 116 . The chamber 116 is used to accommodate a fan 210 of the air conditioner indoor unit 200 .

[0087] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0088] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0089] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0090] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0091] In detail, the air conditioning indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110. The chamber 116 can at least accommodate a fan 210 of the air conditioning indoor unit 200, and the chamber 116 can also accommodate a heat exchanger 220 of the air conditioning indoor unit 200. When the air conditioning indoor unit 200 is working, the fan 210 drives the air flow so that the indoor air enters the chamber 116 from the air inlet 112, flows to the air mixing structure 120 from the first air outlet 114, and then is discharged from the air conditioning indoor unit 200 from the second air outlet 124 of the air mixing structure 120.

[0092] Specifically, since the flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is larger than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126, after the airflow flows into the air mixing structure 120 from the inlet 122, the dynamic pressure at the ejection portion 126 is smaller than the dynamic pressure at the inlet 122, that is, the air mixing channel 128 forms a negative pressure at the ejection portion 126, so the indoor air is guided to be replenished into the air mixing channel 128 through the ejection portion 126. In other words, the airflow flowing out of the second air outlet 124 is the sum of the airflow flowing out of the first air outlet 114 of the housing 110 and the indoor air replenished by the ejection portion 126.

[0093] It can be understood that the airflow flowing out of the second air outlet 124 is a mixed airflow formed by mixing the airflow flowing out of the first air outlet 114 of the shell 110 and the indoor air supplied by the injection portion 126 in the air mixing channel 128. This makes the temperature of the airflow flowing out of the air mixing structure 120 closer to the room temperature, the air volume is larger, and the wind speed is softer, thereby reducing the stimulation brought by the airflow blowing to the human body, making the user feel more comfortable.

[0094] In addition, the airflow flowing out of the second air outlet 124 is the airflow flowing out of the first air outlet 114 of the shell 110, and is mixed and disturbed with the indoor air supplied by the injection portion 126, which accelerates the flow of indoor air and increases the circulation of indoor air. The circulating wind can guide the cold and warm air flows in the horizontal or vertical direction, and is more conducive to generating a gentle and comfortable airflow indoors, thereby making the indoor temperature evenly increased or evenly decreased, thereby improving the comfort of the human body.

[0095] Specifically, the housing 110 may be in a rectangular parallelepiped shape, a columnar structure, or other shapes, that is, the air-conditioning indoor unit 200 may be designed into different shapes as needed.

[0096] Specifically, along the direction from the top to the bottom of the air-conditioning indoor unit 200, the ejection portion 126 is located at the top of the air mixing structure 120, or the ejection portion 126 is located at the bottom of the air mixing structure 120, or a part of the ejection portion 126 is located at the top of the air mixing structure 120, and the other part of the ejection portion 126 is located at the bottom of the air mixing structure 120.

[0097] Specifically, the injection portion 126 includes an injection port.

[0098] Specifically, the dimension of the air mixing channel 128 in the direction from the inlet 122 to the second air outlet 124 is the length of the air mixing channel 128. The air mixing channel 128 is sectioned in a direction perpendicular to the length of the air mixing channel 128, and the area of ​​the section is the flow cross-sectional area of ​​the air mixing channel 128.

[0099] Embodiment 2:

[0100] like Figures 1 to 7 As shown, based on the first embodiment, the second embodiment provides an air-conditioning indoor unit 200 , which includes a housing 110 and an air mixing structure 120 .

[0101] The shell 110 includes an air inlet 112 and a first air outlet 114 . A chamber 116 is disposed in the shell 110 . The air inlet 112 and the first air outlet 114 are both connected to the chamber 116 . The chamber 116 is used to accommodate a fan 210 of the air conditioner indoor unit 200 .

[0102] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0103] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0104] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0105] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0106] Furthermore, if Figure 2 As shown, the air mixing flow passage 128 includes a first flow passage 130 .

[0107] The first flow channel 130 is located between the inlet 122 and the ejection portion 126 .

[0108] From the ejector portion 126 to the second air outlet 124 , the flow cross-sectional area of ​​the first flow channel 130 gradually decreases.

[0109] In detail, the air mixing structure 120 includes a first flow channel 130, and the first flow channel 130 is located between the inlet 122 and the ejection portion 126. By reasonably setting the structure of the first flow channel 130, the flow cross-sectional area of ​​the first flow channel 130 gradually decreases from the ejection portion 126 to the second air outlet 124. That is, the flow cross-sectional area of ​​the first flow channel 130 at the ejection portion 126 is smaller. In other words, the dynamic pressure of the air mixing flow channel 128 at the ejection portion 126 is smaller, so that the air mixing flow channel 128 forms a negative pressure at the ejection portion 126, and thus, the indoor air is guided to be replenished into the air mixing flow channel 128 through the ejection portion 126.

[0110] Furthermore, the flow cross-sectional area of ​​the first flow channel 130 gradually decreases from the ejector 126 to the second air outlet 124. That is, from the ejector 126 to the second air outlet 124, the airflow flows along the continuous flow channel formed by the inner wall of the first flow channel 130. The continuous flow channel formed by the inner wall of the first flow channel 130 has the function of expanding the pressure. The airflow velocity flowing into the first air outlet 114 is relatively large, and the continuous flow channel with uniformly reduced flow area reduces the deflection of the airflow, reduces the flow loss of the airflow, and converts more energy into dynamic pressure. Avoid the situation where the flow loss of the airflow is large due to excessive velocity energy, the aerodynamic performance is poor, and the air volume is reduced.

[0111] In addition, the first flow channel 130 has a flow collecting function, which reduces the frequency of airflow separation, flow separation, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0112] Embodiment 3:

[0113] like Figures 1 to 7 As shown, based on Embodiment 1 or Embodiment 2, Embodiment 3 provides an air-conditioning indoor unit 200 , and the air-conditioning indoor unit 200 includes a housing 110 and an air mixing structure 120 .

[0114] The shell 110 includes an air inlet 112 and a first air outlet 114 . A chamber 116 is disposed in the shell 110 . The air inlet 112 and the first air outlet 114 are both connected to the chamber 116 . The chamber 116 is used to accommodate a fan 210 of the air conditioner indoor unit 200 .

[0115] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0116] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0117] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0118] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0119] Furthermore, if Figure 2 As shown, the air mixing flow passage 128 includes a second flow passage 132 .

[0120] The second flow channel 132 is located between the ejection portion 126 and the second air outlet 124 .

[0121] From the ejection portion 126 to the second air outlet 124 , the flow cross-sectional area of ​​the second flow channel 132 is uniform or gradually increases.

[0122] In detail, the air mixing channel 128 includes a second channel 132, and the second channel 132 is located between the ejection portion 126 and the second air outlet 124. By reasonably setting the structure of the second channel 132, the flow cross-sectional area of ​​the second channel 132 from the ejection portion 126 to the second air outlet 124 is equal or gradually increased, which is conducive to reducing the wind speed, making the air flow speed flowing out of the air mixing structure 120 softer, thereby reducing the stimulation caused by the air flow blowing to the human body, making the user feel more comfortable.

[0123] Embodiment 4:

[0124] like Figures 1 to 7 As shown, based on any of the above embodiments, embodiment 4 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0125] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0126] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0127] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0128] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0129] Furthermore, the second air outlet 124 is an annular structure distributed along the circumference of the air inlet 112 .

[0130] In detail, by reasonably setting the structure of the second air outlet 124, the second air outlet 124 is an annular structure distributed along the circumference of the air inlet 112. This setting expands the air outlet area of ​​the second air outlet 124, can meet the use requirements of air outlet at various angles, and make full use of the natural sinking of cold air, and the temperature in the horizontal plane at different heights in the room is uniform.

[0131] In some other embodiments, there are multiple second air outlets 124 , and the multiple second air outlets 124 are arranged at intervals along the circumference of the air inlet 112 .

[0132] There are multiple second air outlets 124, and by reasonably setting the structure of the multiple second air outlets 124, the multiple second air outlets 124 are arranged at intervals along the circumference of the air inlet 112. This arrangement expands the air outlet area of ​​the second air outlet 124, can meet the use requirements of air outlet at various angles, and fully utilizes the natural sinking of cold air, and the temperature in the horizontal plane at different heights in the room is uniform. In addition, this arrangement has the advantage of good overall structural strength.

[0133] Specifically, the second air outlet 124 is located at a side of the air conditioner indoor unit.

[0134] Embodiment 5:

[0135] like Figures 1 to 7 As shown, based on any of the above embodiments, embodiment 5 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0136] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0137] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0138] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0139] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0140] Furthermore, if Figure 4 and Figure 5 As shown, the ejection portion 126 is an annular structure distributed along the circumference of the air inlet 112 .

[0141] In detail, by reasonably setting the structure of the ejection part 126, the ejection part 126 is an annular structure distributed along the circumference of the air inlet 112. This setting expands the air supply area at the ejection part 126, which can meet the use requirements of air supply at various angles, so as to meet the mixed air requirements under different working conditions.

[0142] In some other embodiments, there are multiple ejection portions 126 , and the multiple ejection portions 126 are arranged at intervals along the circumference of the air inlet 112 .

[0143] Among them, there are multiple injection parts 126. By reasonably setting the distribution structure of the multiple injection parts 126, the multiple injection parts 126 are arranged at circumferential intervals along the air inlet 112. This setting expands the air supply area at the injection part 126, which can meet the use requirements of air supply at various angles, so as to meet the mixed air requirements under different working conditions.

[0144] Specifically, the structure of the ejection portion 126 is adapted to the structure of the first air outlet 114 to meet the use requirements of air mixing. For example, the first air outlet 114 is an annular structure, and the ejection portion 126 is an annular structure; for example, a plurality of second air outlets 124 are arranged at intervals along the circumference of the air inlet 112, and a plurality of ejection portions 126 are arranged at intervals along the circumference of the air inlet 112.

[0145] Embodiment 6:

[0146] like Figures 1 to 7 As shown, based on any of the above embodiments, embodiment 6 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0147] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0148] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0149] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0150] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0151] Furthermore, if Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the air mixing structure 120 includes a first plate body 134 and a second plate body 136 .

[0152] The first plate 134 is connected to the housing 110 , and the first plate 134 is provided with an inlet 122 .

[0153] The second plate 136 is connected to the first plate 134 , and the second plate 136 is provided with an ejection portion 126 .

[0154] The area between the first plate 134 and the second plate 136 forms the air mixing passage 128 , and the edge of the first plate 134 and the edge of the second plate 136 together enclose the second air outlet 124 .

[0155] In detail, the air mixing structure 120 includes a first plate 134 and a second plate 136. The first plate 134 is provided with an inlet 122, the second plate 136 is provided with an ejection portion 126, the area between the first plate 134 and the second plate 136 is an air mixing channel 128, and the edge of the first plate 134 and the edge of the second plate 136 enclose the second air outlet 124.

[0156] When the indoor air conditioner 200 is working, the fan 210 drives the air flow so that the indoor air enters the chamber 116 from the air inlet 112, flows from the first air outlet 114 to the inlet 122 of the first plate 134, and then flows from the inlet 122 to the air mixing channel 128 between the first plate 134 and the second plate 136. After the air flows into the air mixing channel 128 from the inlet 122, the dynamic pressure at the ejection part 126 is less than the dynamic pressure at the inlet 122, that is, the air mixing channel 128 forms a negative pressure at the ejection part 126, so the indoor air is guided to pass through the ejection part 126 of the second plate 136 to replenish the air mixing channel 128. Finally, the mixed air flows out of the indoor air conditioner 200 from the second air outlet 124 surrounded by the edge of the first plate 134 and the edge of the second plate 136.

[0157] This setting rationally arranges the structure of the shell 110, the first plate 134 and the second plate 136, so that the airflow flowing out of the second air outlet 124 is the airflow flowing out of the first air outlet 114 of the shell 110 and the indoor air replenished by the inlet portion 126 of the second plate 136, which are mixed between the first plate 134 and the second plate 136 to form a new comfortable mixed airflow, so that the temperature of the airflow flowing out of the second air outlet 124 is closer to the room temperature and the wind speed is softer, thereby reducing the stimulation brought by the airflow blowing to the human body, making the user feel more comfortable.

[0158] Furthermore, if Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, the air inlet 112 is located at the bottom of the shell 110; the second plate 136 is connected to the side of the first plate 134 facing away from the shell 110, the first plate 134 is provided with a first avoidance port, and the second plate 136 is provided with a second avoidance port; the first avoidance port connects the second avoidance port and the air inlet 112; wherein, the inlet 122 is located between the first avoidance port and the edge of the first plate 134.

[0159] Among them, the air inlet 112 is located at the bottom of the housing 110, and the first avoidance port of the first plate 134 is connected to the second avoidance port of the second plate 136 and the air inlet 112, that is, the air inlet of the air conditioner indoor unit 200 is at the bottom and the air outlet is at the side. This setting realizes the separation of the air inlet path and the air outlet path of the air conditioner indoor unit 200, so that the airflow discharged from the second air outlet 124 after heat exchange can be avoided from being sucked into the air inlet 112, and the heat exchange efficiency of the air conditioner can be guaranteed. In addition, this setting is conducive to expanding the air outlet range of the air conditioner indoor unit 200, making the distribution of the spatial temperature field more uniform, and the cooling or heating effect is better.

[0160] In addition, the second plate 136 is connected to the side of the first plate 134 facing away from the shell 110, and the first avoidance port is connected to the second avoidance port and the air inlet 112, so as to prevent the first plate 134 and the second plate 136 from blocking the air inlet 112, thereby ensuring that air enters from the bottom of the air-conditioning indoor unit 200, and providing effective and reliable structural support for the separation of the air inlet path and the air outlet path.

[0161] Embodiment 7:

[0162] like Figures 1 to 7 As shown, on the basis of Embodiment 6, Embodiment 7 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0163] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0164] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0165] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0166] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0167] The air mixing structure 120 includes a first plate body 134 and a second plate body 136 .

[0168] The first plate 134 is connected to the housing 110 , and the first plate 134 is provided with an inlet 122 .

[0169] The second plate 136 is connected to the first plate 134 , and the second plate 136 is provided with an ejection portion 126 .

[0170] The area between the first plate 134 and the second plate 136 forms the air mixing passage 128 , and the edge of the first plate 134 and the edge of the second plate 136 together enclose the second air outlet 124 .

[0171] Furthermore, if Figure 2 and Figure 7 As shown, the second plate 136 extends from the edge of the inlet 122 in a direction away from the first plate 134 , then extends toward the first plate 134 , and then extends in a direction away from the first plate 134 .

[0172] In detail, by reasonably setting the structure of the second plate 136, the second plate 136 first extends from the edge of the inlet 122 in a direction away from the first plate 134, then extends in a direction toward the first plate 134, and then extends in a direction away from the first plate 134. That is, the second plate 136 will not block the air inlet 112, and by reasonably defining the shape of the second plate 136, the flow cross-sectional area of ​​the air mixing channel 128 between the second plate 136 and the first plate 134 gradually decreases from the ejection portion 126 to the second air outlet 124, and then gradually increases.

[0173] Specifically, the flow cross-sectional area of ​​the space between the second plate body 136 and the first plate body 134 gradually decreases from the ejection portion 126 to the second air outlet 124. This setting is to reduce the dynamic pressure of the air mixing channel 128 at the ejection portion 126, so that the air mixing channel 128 forms a negative pressure at the ejection portion 126, providing effective structural support. Since the air mixing channel 128 forms a negative pressure at the ejection portion 126, the indoor air will be guided to pass through the ejection portion 126 to replenish the air mixing channel 128.

[0174] Among them, the flow cross-sectional area of ​​the space between the second plate 136 and the first plate 134 gradually decreases from the ejection portion 126 to the second air outlet 124, that is, from the ejection portion 126 to the second air outlet 124, the air flows along the mixed air channel 128 formed by the wall surface of the second plate 136 and the wall surface of the first plate 134. The mixed air channel 128 has the function of expanding the pressure. The air flow velocity flowing into the first air outlet 114 is relatively large, and the continuous flow channel with uniformly reduced flow area reduces the deflection of the air flow, reduces the flow loss of the air flow, and converts more energy into dynamic pressure. Avoid the situation where the flow loss of the air flow is large due to excessive velocity energy, the aerodynamic performance is poor, and the air volume is reduced.

[0175] In addition, the air mixing channel 128 has the function of collecting air, reducing the frequency of air flow separation, de-flow, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0176] Specifically, from the ejection portion 126 to the second air outlet 124, the flow cross-sectional area of ​​the air mixing passage 128 between the second plate 136 and the first plate 134 first gradually decreases, and then gradually increases. This arrangement is conducive to reducing the wind speed, making the wind speed of the air flow out of the air mixing structure 120 softer, thereby reducing the irritation caused by the air flow blowing to the human body, making the user feel more comfortable.

[0177] Furthermore, if Figure 1 and Figure 7 As shown, the first plate body 134 is an annular plate, and the second plate body 136 includes a first annular portion 140 , a second annular portion 142 , and a third annular portion 144 .

[0178] A first end of the first annular portion 140 is connected to the first plate body 134 , and a second end of the first annular portion 140 extends in a direction away from the first plate body 134 .

[0179] The third end of the second annular portion 142 is connected to the second end of the first annular portion 140 , and the fourth end of the second annular portion 142 extends toward the first plate body 134 .

[0180] The third annular portion 144 extends from the fourth end of the second annular portion 142 in a direction away from the first plate 134 , and the ejection portion 126 is located at the connection between the second annular portion 142 and the third annular portion 144 .

[0181] The second plate body 136 includes a first annular portion 140, a second annular portion 142 and a third annular portion 144. The second annular portion 142 is located between the first annular portion 140 and the third annular portion 144, and the second annular portion 142 is connected to both the first annular portion 140 and the third annular portion 144. By reasonably defining the matching structure of the first annular portion 140, the second annular portion 142 and the third annular portion 144, the flow cross-sectional area of ​​the air mixing channel 128 between the second plate body 136 and the first plate body 134 gradually decreases from the ejection portion 126 to the second air outlet 124, and then gradually increases.

[0182] In addition, the ejection portion 126 is located at the connection between the second annular portion 142 and the third annular portion 144 , that is, the dynamic pressure at the ejection portion 126 is ensured to be smaller than the dynamic pressure at the inlet 122 , thereby providing effective structural support for the air mixing channel 128 to form a negative pressure at the ejection portion 126 .

[0183] Specifically, the first plate 134 is an annular plate, and the edge of the first plate 134 and the edge of the third annular portion 144 enclose the second air outlet 124 in an annular structure. This arrangement expands the air outlet area of ​​the second air outlet 124, can meet the use requirements of air outlet at various angles, fully utilizes the natural sinking of cold air, and makes the temperature in the horizontal plane at different heights in the room uniform.

[0184] Specifically, the ejection portion 126 is located at the connection between the second annular portion 142 and the third annular portion 144. The ejection portion 126 is an annular structure. This arrangement expands the air supply area at the ejection portion 126 and can meet the use requirements of air supply at various angles to meet the mixed air requirements under different working conditions.

[0185] It is understandable that when the ejection portion 126 is an annular structure, the air-conditioning indoor unit 200 further includes a connecting member, and the connecting member is used to connect the third annular portion 144 and the first plate body 134 .

[0186] In some other embodiments, the first plate body is a flat plate, and the second plate body 136 includes a first annular portion 140, a second annular portion 142, and a third annular portion 144. The first end of the first annular portion 140 is connected to the first plate body 134, and the second end of the first annular portion 140 extends in a direction away from the first plate body 134. The third end of the second annular portion 142 is connected to the second end of the first annular portion 140, and the fourth end of the second annular portion 142 extends in a direction away from the first plate body 134. The third annular portion 144 extends from the fourth end of the second annular portion 142 in a direction away from the first plate body 134, and the ejection portion 126 is located at the connection between the second annular portion 142 and the third annular portion 144. That is, the air inlet of the air conditioner indoor unit 200 is side-intake and side-outlet.

[0187] Embodiment 8:

[0188] like Figures 1 to 7 As shown, based on any of the above embodiments, embodiment 8 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0189] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0190] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0191] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0192] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0193] Furthermore, if Figure 1 , Figure 3 and Figure 6 As shown, the air conditioner indoor unit 200 further includes a flow guide duct 150 , a first end of the flow guide duct 150 is connected to the first air outlet 114 , and a second end of the flow guide duct 150 is connected to the inlet 122 .

[0194] In detail, the air conditioner indoor unit 200 further includes a flow guide 150, and by reasonably setting the matching structure of the flow guide 150, the first air outlet 114, and the inlet 122, the first end of the flow guide 150 is connected to the first air outlet 114, and the second end of the flow guide 150 is connected to the inlet 122. That is, the first air outlet 114 and the inlet 122 are connected through the flow guide 150. In other words, the first air outlet 114 and the inlet 122 are indirectly connected.

[0195] The airflow flows along the inner wall of the air guide tube 150. The flow channel formed by the inner wall of the air guide tube 150 has a pressure expansion effect. The airflow velocity energy flowing into the first air outlet 114 is relatively large. When flowing through the air guide tube 150, the deflection of the airflow is reduced, the flow loss of the airflow is reduced, and more energy is converted into dynamic pressure. This avoids the situation where the flow loss of the airflow is large, the aerodynamic performance is poor, and the air volume is reduced due to excessive velocity energy.

[0196] In addition, the guide tube 150 has the function of collecting flow, reducing the frequency of air flow separation, flow separation, vortex and other phenomena, which is beneficial to reducing the operating noise of the product and improving the performance of the product.

[0197] Furthermore, if Figure 6 As shown, there are multiple first air outlets 114 , inlets 122 and air guide pipes 150 . Each air guide pipe 150 is connected to one first air outlet 114 and one inlet 122 . The air guide pipes 150 are arranged at intervals along the circumference of the air inlet 112 .

[0198] Among them, the number of the first air outlet 114, the inlet 122 and the guide pipe 150 are all multiple, and by reasonably setting the matching structure of the multiple first air outlets 114, the multiple inlets 122 and the multiple guide pipes 150, each guide pipe 150 is connected to one first air outlet 114 and one inlet 122. This arrangement allows indoor air to flow into the air inlet 112 through the gap between two adjacent guide pipes 150 while ensuring the air volume of the shell 110, which is beneficial to increase the air volume of the air inlet of the air conditioner indoor unit 200, and further to improve the heat exchange efficiency of the air conditioner.

[0199] Embodiment 9:

[0200] like Figures 1 to 7 As shown, based on any of the above embodiments, embodiment 9 provides an air conditioner indoor unit 200, and the air conditioner indoor unit 200 includes a housing 110 and an air mixing structure 120. The housing 110 includes an air inlet 112 and a first air outlet 114, and a chamber 116 is provided in the housing 110, and the air inlet 112 and the first air outlet 114 are both connected to the chamber 116, and the chamber 116 is used to accommodate the fan 210 of the air conditioner indoor unit 200.

[0201] The air mixing structure 120 is disposed on the housing 110 , and includes an inlet 122 , a second air outlet 124 , an ejection portion 126 , and an air mixing passage 128 .

[0202] The inlet 122 is connected to the first air outlet 114 and the air mixing passage 128 .

[0203] The ejection portion 126 and the second air outlet 124 are both connected to the air mixing passage 128 , and the ejection portion 126 is located between the inlet 122 and the second air outlet 124 .

[0204] The flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is greater than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126 .

[0205] Furthermore, the air-conditioning indoor unit 200 further includes a baffle, which is movably disposed on the air mixing structure 120 , and the baffle is located at the ejection portion 126 , and the baffle is used to adjust the flow cross-sectional area of ​​the ejection portion 126 .

[0206] In detail, the air conditioner indoor unit 200 further includes a baffle, and the baffle is movably disposed on the air mixing structure 120, and the baffle moves to adjust the area of ​​the baffle shielding the ejection portion 126, thereby adjusting the flow cross-sectional area of ​​the ejection portion 126, so as to meet the use requirements of different working conditions. It can be understood that according to different use requirements, the positional relationship between the baffle and the ejection portion 126 is adjusted, thereby adjusting the flow cross-sectional area of ​​the ejection portion 126, so as to adjust the mixing ratio of the airflow flowing from the first air outlet 114 into the air mixing channel 128 and the airflow entering the air mixing channel 128 from the ejection portion 126.

[0207] Specifically, the air conditioner includes a controller, which is connected to the baffle, and the controller is used to control the movement of the baffle to adjust the flow cross-sectional area of ​​the ejection portion 126. This setting can improve the automation of the product and is conducive to improving the performance of the product.

[0208] Furthermore, the ratio of the air flow rate at the ejection portion 126 to the air flow rate at the first air outlet 114 satisfies: 0.05 to 0.2.

[0209] In detail, by setting the ratio of the airflow rate at the ejection portion 126 to the airflow rate at the first air outlet 114 to be greater than or equal to 0.05 and less than or equal to 0.2, the mixing ratio of the airflow flowing out of the first air outlet 114 of the housing 110 and the indoor air replenished by the ejection portion 126 can be ensured, so as to ensure that the temperature of the airflow flowing out of the air mixing channel 128 is closer to the room temperature and the wind speed is gentler, thereby reducing the stimulation caused by the airflow blowing to the human body, making the user feel more comfortable.

[0210] If the ratio of the air flow rate at the injection portion 126 to the air flow rate at the first air outlet 114 is greater than 0.2, then more indoor air is added from the injection portion 126, which will affect the mixing temperature of the air flow in the mixing air channel 128, thereby reducing the heat exchange efficiency of the air conditioner indoor unit 200.

[0211] If the ratio of the air flow rate at the injection portion 126 to the air flow rate at the first air outlet 114 is less than 0.05, the temperature of the air flow out of the mixing channel 128 will be significantly different from the room temperature, which will make the user feel uncomfortable when using the air conditioner, resulting in a poor user experience.

[0212] Specifically, the ratio of the airflow rate at the ejection portion 126 to the airflow rate at the first air outlet 114 includes: 0.08, 0.1, 0.12, 0.14, 0.16 and 0.18, etc., which are not listed here one by one.

[0213] Furthermore, if Figure 1 and Figure 7 As shown, the air conditioner indoor unit 200 further includes a fan 210 and a heat exchanger 220 . The fan 210 is located in the chamber 116 . The heat exchanger 220 is located in the chamber 116 , and the heat exchanger 220 is located between the fan 210 and the first air outlet 114 .

[0214] The air conditioner indoor unit 200 includes a fan 210 and a heat exchanger 220. The fan 210 and the heat exchanger 220 are both located in the chamber 116, and the heat exchanger 220 is located between the fan 210 and the first air outlet 114. The fan 210 works to drive the air flow so that the indoor air enters the chamber 116 from the air inlet 112, and the air flow flows from the first air outlet 114 to the air mixing structure 120 after heat exchange in the heat exchanger 220, and then is discharged from the air conditioner indoor unit 200 from the second air outlet 124 of the air mixing structure 120.

[0215] Specifically, the heat exchanger 220 is disposed around the fan 210 .

[0216] Embodiment 10:

[0217] The embodiment of the second aspect of the present invention provides an air conditioner, comprising: the air conditioner indoor unit 200 as in the first aspect.

[0218] Since the air conditioner provided by the present invention includes the air conditioner indoor unit 200 as in the first aspect, it has all the beneficial effects of the above-mentioned air conditioner indoor unit 200, which will not be described one by one here.

[0219] Embodiment 11:

[0220] The air-conditioning indoor unit 200 is a ceiling unit.

[0221] The housing 110 is a columnar structure, and the air mixing structure 120 is disposed in the housing 110. The air mixing structure 120 includes a first plate 134 and a second plate 136. The first plate 134 and the second plate 136 are both annular structures. The wind enters the air inlet 112 of the housing 110 from the bottom or side of the ceiling fan, and then flows to the fan 210 (such as a centrifugal fan). After being pressurized by the centrifugal fan 210, the airflow passes through the heat exchanger 220 for heat exchange, enters the annular air mixing channel 128, and then is ejected through the second air outlet 124.

[0222] The airflow discharged from the first air outlet 114 of the housing 110 flows into the air mixing channel 128 through the inlet 122. Since the flow cross-sectional area of ​​the air mixing channel 128 at the inlet 122 is larger than the flow cross-sectional area of ​​the air mixing channel 128 at the ejection portion 126, after the airflow flows into the air mixing structure 120 from the inlet 122, the dynamic pressure at the ejection portion 126 is smaller than the dynamic pressure at the inlet 122, that is, the air mixing channel 128 forms a negative pressure at the ejection portion 126, so the indoor air is guided to be replenished into the air mixing channel 128 through the ejection portion 126. In other words, the airflow flowing out of the second air outlet 124 is the sum of the airflow flowing out of the first air outlet 114 of the housing 110 and the indoor air replenished by the ejection portion 126. The temperature of the airflow discharged from the second air outlet 124 is closer to the room temperature than the temperature of the unmixed airflow, and the wind speed is softer and the comfort is better.

[0223] The air mixing channel 128 includes a first channel 130 , and the first channel 130 is located between the inlet 122 and the ejection portion 126 . From the ejection portion 126 to the second air outlet 124 , the flow cross-sectional area of ​​the first channel 130 gradually decreases.

[0224] The air mixing channel 128 includes a second channel 132 , which is located between the ejection portion 126 and the second air outlet 124 . The flow cross-sectional area of ​​the second channel 132 gradually increases from the ejection portion 126 to the second air outlet 124 to reduce the air velocity.

[0225] The mixed air volume is controlled by controlling the flow cross-sectional area of ​​the ejector 126. The larger the area, the higher the mixed air ratio. The flow cross-sectional area of ​​the ejector 126 can be adjusted by a lifting or rotating mechanism.

[0226] Figure 8 FIG. 2 shows a wind speed effect diagram of an air conditioner indoor unit 200 provided by an embodiment of the present invention. Figure 8 It can be seen that the air conditioner indoor unit 200 of the present application can realize 360° blowing of air flow on the horizontal plane, and the temperature in the horizontal plane at different heights in the room is evenly distributed.

[0227] Fig. 9 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the cooling mode at a height of 0.5 m from the ground; Fig.10 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the cooling mode at a distance of 1 m from the ground; Fig.11 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the cooling mode at a height of 1.5 m from the ground; Fig.12The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the cooling mode at a height of 1.8 m from the ground; Fig.13 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the heating mode at a height of 0.5 m from the ground; Fig.14 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the heating mode at a distance of 1 m from the ground; Fig.15 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the heating mode at a distance of 1.5 m from the ground; Fig.16 The figure shows the temperature distribution effect diagram of the air conditioner indoor unit 200 provided by one embodiment of the present invention in the heating mode at a height of 1.8 m from the ground. Figures 9 to 16 All of them are based on the temperature distribution effect diagram when the ratio of the air flow rate at the injection portion 126 to the air flow rate at the first air outlet 114 is 0.1.

[0228] Depend on Figures 9 to 16 As can be seen from Table 1, the air-conditioning indoor unit 200 of the present application has better cooling / heating effect and better uniformity of the spatial temperature field than the air-conditioning indoor unit in the related art. Among them, the height horizontal plane refers to a horizontal plane at a certain distance from the ground. For example, a 1m height horizontal plane refers to a horizontal plane 1m away from the ground. The temperature extreme difference of each measuring point refers to the difference between the maximum temperature and the minimum temperature of each detection point.

[0229] Table 1

[0230]

[0231] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0232] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0233] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: A housing, the housing comprising an air inlet and a first air outlet, a chamber being arranged in the housing, the air inlet and the first air outlet being both in communication with the chamber, and the chamber being used to accommodate a fan of the indoor unit of the air conditioner; an air mixing structure, provided on the housing, the air mixing structure comprising an inlet, a second air outlet, an ejection part and an air mixing flow channel, the inlet is connected to the first air outlet and the air mixing flow channel, the ejection part and the second air outlet are both connected to the air mixing flow channel, and the ejection part is located between the inlet and the second air outlet; Wherein, the flow cross-sectional area of ​​the air mixing flow channel at the inlet is larger than the flow cross-sectional area of ​​the air mixing flow channel at the ejection portion; The air mixing structure comprises: A first plate body connected to the shell, wherein the first plate body is provided with the inlet; The second plate body is connected to the first plate body, the second plate body is provided with the injection portion, the area between the first plate body and the second plate body forms the air mixing channel, and the edge of the first plate body and the edge of the second plate body enclose the second air outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The air mixing channel includes a first channel, and the first channel is located between the inlet and the ejection portion; Wherein, the flow cross-sectional area of ​​the first flow channel gradually decreases from the injection portion to the second air outlet.

3. The air conditioner indoor unit according to claim 1, characterized in that: The air mixing channel includes a second channel, and the second channel is located between the ejection portion and the second air outlet; Wherein, from the injection portion to the second air outlet, the flow cross-sectional area of ​​the second flow channel is uniform or gradually increases.

4. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The second air outlet is a ring-shaped structure distributed along the circumference of the air inlet; or There are multiple second air outlets, and the multiple second air outlets are arranged at intervals along the circumference of the air inlet.

5. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The ejection portion is an annular structure distributed along the circumference of the air inlet; or There are multiple ejection parts, and the multiple ejection parts are arranged at intervals along the circumferential direction of the air inlet.

6. The air conditioner indoor unit according to claim 1, characterized in that: The air inlet is located at the bottom of the housing; The second plate is connected to a side of the first plate facing away from the housing; The first plate body is provided with a first avoidance opening, the second plate body is provided with a second avoidance opening, and the first avoidance opening is connected to the second avoidance opening and the air inlet; Wherein, the inlet is located between the first avoidance opening and the edge of the first plate body.

7. The air conditioner indoor unit according to claim 1, characterized in that: The second plate extends from the edge of the inlet in a direction away from the first plate, then extends towards the first plate, and then extends in a direction away from the first plate.

8. The air conditioner indoor unit according to claim 7, characterized in that: The first plate body is an annular plate, and the second plate body comprises: A first annular portion, wherein a first end of the first annular portion is connected to the first plate body, and a second end of the first annular portion extends in a direction away from the first plate body; a second annular portion, wherein the third end of the second annular portion is connected to the second end of the first annular portion, and the fourth end of the second annular portion extends toward the first plate body; a third annular portion extending from the fourth end of the second annular portion in a direction away from the first plate body; Wherein, the ejection portion is located at the connection between the second annular portion and the third annular portion.

9. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: Also includes: A flow guide pipe, wherein a first end of the flow guide pipe is connected to the first air outlet, and a second end of the flow guide pipe is connected to the inlet.

10. The air conditioner indoor unit according to claim 9, characterized in that: There are multiple first air outlets, multiple inlets and multiple flow guide pipes. Each flow guide pipe is connected to one first air outlet and one inlet. The flow guide pipes are arranged at intervals along the circumference of the air inlet.

11. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: Also includes: a baffle, movably disposed on the air mixing structure, and the baffle is located at the ejection portion, and the baffle is used to adjust the flow cross-sectional area of ​​the ejection portion; and / or The ratio of the airflow rate at the ejection portion to the airflow rate at the first air outlet satisfies: 0.05 to 0.

2.

12. An air conditioner, characterized in that: include: An air-conditioning indoor unit according to any one of claims 1 to 11.

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