Air conditioner indoor unit and air conditioner

Abstract

The application discloses an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a heat exchange unit and at least two air guiding units; the heat exchange unit has a heat exchange air duct; the at least two air guiding units are arranged one by one in a stacking mode in the up-down direction, the air guiding unit has an air guiding air duct and a jet air duct, the air guiding air duct has an air guiding air inlet and an air guiding air outlet which are communicated with indoor air; the jet air duct has a jet air port and an air guiding port which is communicated with the heat exchange air duct, the jet air duct blows out the air in the heat exchange air duct, so that a negative pressure is formed in the air guiding air duct, and the air at the air guiding air inlet flows towards the air guiding air outlet; wherein the axis of the air guiding unit extending in the up-down direction is rotatable. The air conditioner indoor unit can control the continuous air outlet direction at different heights.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner. BACKGROUND

[0002] With the improvement of living standards, air conditioners have become the main household appliances in people's daily life. Air conditioners can circulate and heat indoor air, so that people can get a comfortable living environment.

[0003] The existing air conditioner generally adopts the combination of a fan, a heat exchanger and a deflector to realize the adjustment of wind temperature, direction and speed to meet the needs of users in different areas for wind speed and temperature. In addition, in order to ensure the comfort of air outlet airflow of the air conditioner, some products adopt an air injection multiplication scheme, set a single air outlet, mix cold and hot air in advance, reduce the influence of air discontinuity, and improve comfort.

[0004] By rotating the fan to cut air and transport airflow, there are problems of discontinuous and unstable air outlet, poor human experience, easy to cause discomfort, and the outflow direction of the device can only be adjusted in a small range by the deflector. Although the air injection multiplication scheme realizes continuous and stable air output, the existing air conditioner adopts a single air outlet design and cannot realize the control of air supply at different heights. SUMMARY

[0005] The main purpose of the present application is to provide an air conditioner indoor unit, which aims to solve the problem that the existing air conditioner indoor unit cannot control the continuous air outlet direction at different heights.

[0006] To achieve the above purpose, the air conditioner indoor unit provided by the present application comprises:

[0007] A heat exchange unit, the heat exchange unit has a heat exchange air duct;

[0008] At least two air guide units, the at least two air guide units are arranged one by one in a stacking manner in the up-down direction with the heat exchange unit, the air guide unit has an air guide air duct and a jet flow air duct, the air guide air duct has an air guide inlet and an air guide outlet, the air guide inlet and the air guide outlet are both in communication with indoor air; the jet flow air duct has a flow guide port and a jet flow port, the flow guide port is in communication with the heat exchange air duct, the jet flow air duct is used to blow out the air in the heat exchange air duct from the jet flow port, so as to form a negative pressure in the air guide air duct, so that the air of the air guide inlet flows towards the air guide outlet; wherein the axis of at least one air guide unit extending in the up-down direction is rotatable.

[0009] In an embodiment, the heat exchange unit is arranged below the at least two air guide units.

[0010] In an embodiment, the jet air duct further has a communication port, and the communication port is in communication with the air inlet port in two adjacent air guiding units.

[0011] In an embodiment, the jet air duct is arranged in a ring shape, the air inlet port is arranged at a lower end of the jet air duct, the communication port is arranged at an upper end of the jet air duct, and the jet port is arranged at a side of the jet air duct and arranged in a ring shape.

[0012] In an embodiment, the air guiding unit comprises an air guiding shell, the air guiding duct penetrates through opposite sides of the air guiding shell, the jet port is arranged on an inner wall of the air guiding duct, and the jet port is arranged towards the air outlet port.

[0013] In an embodiment, the at least two air guiding units are independently rotatable.

[0014] In an embodiment, the air guiding unit is provided with a driving gear and a ring-shaped inner tooth gear, the ring-shaped inner tooth gear is fixedly connected to an inner wall surface of the air guiding shell, the ring-shaped inner tooth gear is in meshing connection with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

[0015] In an embodiment, the air guiding unit is provided with a driving gear and a ring-shaped outer tooth gear, the ring-shaped outer tooth gear is fixedly connected to an outer wall surface of the air inlet port, the ring-shaped outer tooth gear is in meshing connection with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

[0016] In an embodiment, the air guiding unit is provided with a driving gear and a ring-shaped outer tooth gear, the ring-shaped outer tooth gear is fixedly connected to an outer wall surface of the air inlet port, the ring-shaped outer tooth gear is in meshing connection with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

[0017] In an embodiment, the air guiding unit is rotatable by -90°~+90°.

[0018] In an embodiment, the inner wall of the air guiding unit comprises a first air inlet cylinder forming part of the jet air duct and a second air inlet cylinder forming the air outlet port, a diameter of the first air inlet cylinder close to one end of the air outlet port is smaller than a diameter of the second air inlet cylinder away from the other end of the air outlet port, and the jet port is formed between the one end of the first air inlet cylinder towards the air outlet port and the other end of the second air inlet cylinder away from the air outlet port.

[0019] In an embodiment, the air guiding unit is provided with an air door, the air door is arranged at the jet port or in the jet air duct, and the air door is used to adjust the opening degree of the jet port.

[0020] In an embodiment, the dampers of the at least two air guiding units are independently controllable.

[0021] In an embodiment, the damper comprises a plurality of grating plates arranged circumferentially along the jet port, and the grating plates are rotatable to adjust the opening degree of the jet port.

[0022] In an embodiment, the width of the jet port is not less than 1 / 50 of the diameter of the air guiding outlet, and not more than 1 / 2 of the diameter of the air guiding outlet.

[0023] In an embodiment, the diameter of the first air guiding cylinder gradually decreases in the direction from the air guiding inlet to the air guiding outlet, and the diameter of the second air guiding cylinder gradually increases in the direction from the air guiding inlet to the air guiding outlet.

[0024] In an embodiment, the communication port of the uppermost air guiding unit among the at least two air guiding units is provided with a baffle for closing the communication port.

[0025] In an embodiment, the number of the air guiding units is 2 to 5.

[0026] In an embodiment, the width of the air guiding outlet of one air guiding unit among any two adjacent air guiding units is not less than the width of the air guiding outlet of the other air guiding unit below the one air guiding unit.

[0027] In an embodiment, the width of the air guiding outlet gradually increases from bottom to top.

[0028] The present application also provides an air conditioner, which comprises an outdoor unit and an air conditioner indoor unit; the outdoor unit is connected with the air conditioner indoor unit through a conduit, and the outdoor unit provides heat exchange medium to the air conditioner indoor unit; the air conditioner indoor unit comprises a heat exchange unit and at least two air guiding units; the heat exchange unit has a heat exchange air duct; the at least two air guiding units are arranged one by one in a stacking manner in the up-down direction with the heat exchange unit, and the air guiding unit has an air guiding air duct and a jet air duct; the air guiding air duct has an air guiding inlet and an air guiding outlet, and both the air guiding inlet and the air guiding outlet are in communication with indoor air; the jet air duct has a guiding port and a jet port, the guiding port is in communication with the heat exchange air duct, and the jet air duct is used to blow out the air in the heat exchange air duct from the jet port, so as to form negative pressure in the air guiding air duct, so that the air of the air guiding inlet flows towards the air guiding outlet; wherein the axis extending in the up-down direction of at least one air guiding unit is rotatable.

[0029] This application's air conditioning indoor unit utilizes at least two induced draft units and a heat exchange unit arranged in a stacked, vertically aligned manner. Each heat exchange unit contains a heat exchange duct that connects to a jet duct within the induced draft unit. The jet duct has a jet nozzle to expel air from the heat exchange duct, and an induced draft duct is also provided on the induced draft unit. When air is ejected from the jet nozzle, a negative pressure is created within the induced draft duct, causing the air in the induced draft duct to mix with the air ejected from the jet nozzle, forming continuous airflow and improving comfort. Furthermore, at least one induced draft unit is rotatable along its vertically extending axis. Rotating the induced draft unit changes the orientation of the induced draft air outlet, thus adjusting the airflow direction. Ultimately, this achieves control over the continuous airflow direction of the air conditioning indoor unit at different heights. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the indoor unit of the air conditioner of the present invention;

[0032] Figure 2 for Figure 1 A structural schematic diagram of the indoor unit of a central air conditioner from another perspective;

[0033] Figure 3 for Figure 1 A cross-sectional view of the indoor unit of a central air conditioner;

[0034] Figure 4 for Figure 1 Exploded view of an indoor unit of a central air conditioner;

[0035] Figure 5 for Figure 1 Cross-sectional view of the central exhaust fan unit;

[0036] Figure 6 for Figure 1 Enlarged view of the central grille, showing the grille fully extended;

[0037] Figure 7 This is a cross-sectional view of another embodiment of the indoor unit of the air conditioner of the present invention;

[0038] Figure 8 for Figure 7 Cross-sectional view of the central exhaust fan unit;

[0039] Figure 9 This is a cross-sectional view of another embodiment of the indoor unit of the air conditioner of the present invention;

[0040] Figure 10 For Figure 9 Cross-sectional view of the air intake unit;

[0041] Figure 11 Structure diagram of another embodiment of the indoor unit of the air conditioner according to the present application;

[0042] Figure 12 Cross-sectional view of an embodiment of the indoor unit of the air conditioner according to the present application.

[0043] Explanation of reference numerals:

[0044]

[0045] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0047] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0048] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text is that it includes three parallel schemes, for example, “A and / or B” includes A scheme, or B scheme, or A and B schemes are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0049] Traditional air conditioner indoor unit generally adopts the combination of fan, heat exchanger and air deflector to realize the adjustment of air temperature, air direction and air speed to meet the needs of users in different areas for air speed and temperature. Each air outlet is provided with a fan to make the corresponding air outlet blow air, and an air outlet opening and closing device is arranged at the position of each air outlet to control the air volume of the air outlet by opening or closing the air outlet opening and closing device. The air is cut by the rotation of the fan to transport air flow, and there is the problem of discontinuous and unstable air blowing. Moreover, the air after heat exchange is directly contacted with human body when being discharged from the air outlet, which causes poor experience of human body and easily causes discomfort; the air deflector can only adjust the air direction of the equipment in a small range.

[0050] To improve the comfort of the air after heat exchange, there is a scheme of air conditioner indoor unit using air injection multiplication, setting a single air outlet, mixing cold and hot air in advance to reduce the influence of air discontinuity. However, the single air outlet design cannot realize the control of air supply at different heights, and when there are different air supply requirements at different heights, the air conditioner indoor unit cannot play a role, which limits its use effect.

[0051] The application provides an air conditioner indoor unit.

[0052] Please refer to Figures 1 to 4 The air conditioner indoor unit 100 comprises a heat exchange unit 10 and at least two air guide units 20. The heat exchange unit 10 comprises a shell 11, a heat exchanger 12 and a fan 13 arranged in the shell 11, and a heat exchange air duct 14 formed in the shell 11, wherein the heat exchange air duct 14 comprises an air inlet 111 arranged on the side surface of the shell 11 and an air outlet 112 arranged on the end surface. The heat exchanger 12 is arranged close to the air inlet 111 and is filled with heat exchange medium, and the air outlet side 131 of the fan 13 is communicated with the air outlet 112.

[0053] The at least two air leading units 20 and the heat exchange unit 10 are arranged one by one in layers in the up-down direction, the air leading unit 20 has an air leading air duct 23 and a jet air duct 22. The air leading air duct 23 has an air leading air inlet 231 and an air leading air outlet 232, both of which are in communication with indoor air, the jet air duct 22 has a flow leading port 221 and a jet port 222, the flow leading port 221 is in communication with the heat exchange air duct 14, and the communication mode of the flow leading port 221 with the heat exchange air duct 14 can be that each flow leading port 221 is individually in communication with the heat exchange air duct 14, or that multiple flow leading ports 221 are in series communication with the heat exchange air duct 14 in turn. The jet air duct 22 is used to blow out the air in the heat exchange air duct 14 from the jet port 222, so as to form a negative pressure in the air leading air duct 23, so that the air of the air leading air inlet 231 flows towards the air leading air outlet 232. Among them, at least one air leading unit extends along the axis 101 in the up-down direction. The axis 101 can be rotated.

[0054] In this embodiment, in order to facilitate the stacking installation of the air leading unit 20 and the heat exchange unit 10, the shape of the air leading unit 20 is set as a column, preferably, the shape of the air leading unit 20 is set as a cylinder. When the at least two air leading units 20 and the heat exchange unit 10 are arranged one by one in layers in the up-down direction, in order to avoid the backflow of the jet port 222 on the side surface of the adjacent air leading unit 20 to the air inlet 111 on the heat exchange unit 10, so that the air that has been heated or cooled enters the heat exchange air duct 14 again, reducing the working efficiency of the air conditioner indoor unit 100, the air inlet 111 is arranged in the area of the shell 11 which avoids the vertical range of the area where the jet port 222 is located. In order to strengthen the pressure difference between the inside and outside of the shell 11 when the heat exchange unit 10 inhales air, that is, to strengthen the air suction efficiency, the air inlet 111 is set as an inlet grille, which can also block some sundries from entering the heat exchange unit 10. The main function of the fan 13 is to inhale indoor air into the heat exchange air duct 14, and then discharge the heat-exchanged air into the jet air duct 22, so that the heat-exchanged air can flow into the at least two air leading units 20. The specific structure of the fan 13 can be various, for example, centrifugal fan, mixed flow fan, axial flow fan, tubular flow fan or counter-rotating fan, etc.

[0055] Please refer to Figures 3 to 5In the embodiment, the air leading unit 20 further comprises an air leading shell 21, the air leading air duct 23 penetrates through opposite sides of the air leading shell 21, the jet port 222 is arranged on the inner wall of the air leading air duct 23, and the jet port 222 is arranged towards the air leading air outlet 232. The jet air duct 22 is arranged in a ring shape, the jet port 222 is arranged on one side of the jet air duct 22 and arranged in a ring shape. The inner wall of the air leading unit 20 comprises a first air leading cylinder 24 (the first air leading cylinder 24 also forms the air leading air inlet 231) which forms part of the jet air duct 22 and a second air leading cylinder 25 which forms the air leading air outlet 232, the diameter of the first air leading cylinder 24 close to one end of the air leading air outlet 232 is smaller than the diameter of the second air leading cylinder 25 away from one end of the air leading air outlet 232, and the jet port 222 is formed between the end of the first air leading cylinder 24 towards the air leading air outlet 232 and the end of the second air leading cylinder 25 away from the air leading air outlet 232. The diameter of the first air leading cylinder 24 gradually decreases in the direction from the air leading air inlet 231 towards the air leading air outlet 232, and the diameter of the second air leading cylinder 25 gradually increases in the direction from the air leading air inlet 231 towards the air leading air outlet 232.

[0056] When the air conditioner indoor unit 100 operates, indoor air flows into the heat exchange air duct 14 through the air inlet 111, the temperature of the indoor air is increased or decreased after heat exchange with the heat exchange medium in the heat exchanger 12, and the air is then sucked by the fan 13 and discharged from the air outlet 112. The air discharged from the heat exchange air duct 14 flows into the jet air duct 22 through the air leading port 221, and the flow rate of the air through the jet port 222 increases and the air is ejected from the jet port 222 when the air passes through the jet port 222 due to the sudden decrease in the flow area, according to the continuity equation derived from the law of conservation of mass.

[0057] Because the air flow rate from the jet port 222 is high, according to Bernoulli's theorem, the flow rate is fast and the pressure is low, the flow rate is slow and the pressure is high, so the air pressure in the air flow direction of the jet port 222 is small. Therefore, when the heat-exchanged air flows out of the jet port 222, the air near the jet port 222 will gather towards the air flow direction of the jet port 222, and will form flowing air at the air guide outlet 232. In this way, the air flow rate of the air guide outlet 232 becomes fast, the area pressure becomes small, and the air flow in the air guide duct 23 will gather towards the air flow direction of the jet port 222, forming a negative pressure (there is a pressure difference between the air guide inlet 231 and the air guide outlet 232) in the air guide duct 23, and external air will continuously flow into the air guide duct 23 from the air guide inlet 231, and then flow out of the air guide outlet 232, and gather with the air flow from the jet port 222, thereby greatly increasing the air output.

[0058] The diameter of the first flow guide cylinder 24 gradually decreases in the direction from the air guide inlet 231 to the air guide outlet 232, so that external air can enter the air guide duct 23 from the air guide inlet 231.

[0059] The diameter of the second flow guide cylinder 25 gradually increases in the direction from the air guide inlet 231 to the air guide outlet 232, which is mainly considered that after the air flow enters the air guide duct 23, it is mainly gathered in the second flow guide cylinder 25, and the internal air flow is fast, so the second flow guide cylinder 25 is set as an expanding port, which can facilitate the smooth flow of the gathered air flow. The mixed air flow is discharged into the room, improving the comfort of the room. At this time, the air flow discharged into the room is much larger than the air flow discharged from the jet port 222 because of the mixing of the air in the air guide duct 23, achieving the effect of air multiplication. And the diameter of the first flow guide cylinder 24 gradually decreases in the direction from the air guide inlet 231 to the air guide outlet 232, and the diameter of the second flow guide cylinder 25 gradually increases in the direction from the air guide inlet 231 to the air guide outlet 232, that is, the air guide duct 23 is expanded from the center position to the outside of the room, increasing the amount of indoor air that can be mixed in a unit of time. At this time, the heat-exchanged air discharged from the jet port 222 is continuous, and has been mixed with the indoor air in the air guide duct 23 before being discharged from the air guide outlet 232, so that when it is discharged into the room and contacts the human body, it will not make the human body feel uncomfortable, improving the comfort of the heat-exchanged air.

[0060] At least one of the at least two air guiding units 20 is rotatable, so that the air guiding direction of the air guiding unit 20 can be changed. In this way, when the air conditioner indoor unit 100 is fixed, if the position where air is needed is not within the coverage range of the air guiding outlet 232 of the air guiding unit 20, the air guiding unit 20 can be rotated so that the air guiding outlet 232 of the air guiding unit 20 is directed to the position where air is needed, so as to meet the air supply requirement and realize multi-angle air supply.

[0061] Please refer to Figure 3 and Figure 4 , the at least two air guiding units 20 and the heat exchange unit 10 are arranged one by one in the up-down direction, the heat exchange unit 10 can be arranged above the at least two air guiding units 20, or arranged between the at least two air guiding units 20. Considering that when the fan 13 in the heat exchange unit 10 operates, the fan 13 will generate vibration, and the heat exchange unit 10 also includes a heat exchanger 12, the overall mass of the heat exchange unit 10 is greater than that of the air guiding unit 20, when the heat exchange unit 10 is placed above the at least two air guiding units 20 or between the at least two air guiding units 20, it is easy to cause the center of gravity to be unstable, and there is a safety hazard of falling. In view of this, in an embodiment, the heat exchange unit 10 is arranged below the at least two air guiding units 20, so that the overall equipment installation and placement of the air conditioner indoor unit 100 is more stable.

[0062] On the basis of the previous embodiment, when the at least two air guiding units 20 and the heat exchange unit 10 are arranged one by one in a stacked manner in the up-down direction, in order to enable the air in the heat exchange air duct 14 to enter each of the air guiding units 20 after being stacked, the jet air duct 22 further has a communication port 223. The air guiding port 221 is arranged at the lower end of the jet air duct 22, and the communication port 223 is arranged at the upper end of the jet air duct 22. In the two adjacent air guiding units 20, the communication port 223 and the air guiding port 221 are in communication. Considering that the communication port of the air guiding unit 20 at the uppermost end does not have the air guiding port 221 above it in communication therewith, a baffle 27 is arranged at the communication port 223 of the air guiding unit 20 at the uppermost end. The baffle 27 is used to close the communication port 223, so as to avoid the air in the jet air duct 22 being directly discharged from the communication port 223. When a plurality of air guiding units 20 are stacked on the heat exchange unit 10, the air guiding port 221 of the air guiding unit 20 at the lowermost end is in communication with the air outlet of the heat exchange unit 10, the communication ports of the air guiding units 20 between two adjacent air guiding units are in communication with the air guiding ports 221, and the communication port 223 of the air guiding unit 20 at the uppermost end is sealed by the baffle 27. A complete jet air duct 22 is formed in the plurality of air guiding units 20, so that the air after heat exchange can flow into each of the air guiding units 20 and can be discharged only from the jet ports 222 arranged. The plurality of air guiding units 20 are connected in a nested and serial manner. The air guiding units 20 can be disassembled and assembled according to the use, so as to meet the air outlet requirements of different heights.

[0063] When the air guiding units 20 are stacked in an up-down manner, if one air guiding unit 20 rotates and drives the air guiding unit connected therewith to rotate, the orientation of the air guiding outlet 232 of the air guiding unit 20 at the adjacent position will change, and finally air is discharged to a position that does not need to be supplied with air, which cannot meet the air supply requirement.

[0064] Please refer to Figure 11 . In view of this, in an embodiment, the air conditioner indoor unit 100 adopts an installation mode in which the air guiding units 20 are spaced apart. The shell 11 of the heat exchange unit 10 is fixedly connected with a fixed column 15 arranged in an extending manner in the up-down direction. Except for the air guiding units 20 that can rotate, the remaining air guiding units 20 are fixedly connected with the fixed column 15. At least one air guiding unit 20 fixedly connected with the fixed column 15 is arranged between each air guiding unit 20 that can rotate. When the air guiding units 20 rotate, because the adjacent air guiding units 20 are fixedly connected with the fixed column 15, the air guiding units 20 will not be driven to rotate together with the rotating air guiding unit 20, and finally the air guiding direction of the rotating air guiding unit 20 is changed.

[0065] Unlike the previous embodiment, in order to eliminate the influence of the rotation of the air guiding unit 20 on the rotation of other air guiding units 20, the at least two air guiding units 20 are arranged to be independently rotatable. The specific manner of realizing the independent rotation of the at least two air guiding units 20 will be described in detail below.

[0066] Please refer to Figures 3 to 5 In the present embodiment, the air guiding unit 20 is provided with a driving gear 28 and an annular internal tooth gear 29. The annular internal tooth gear 29 is fixedly connected to the inner wall of the air guiding shell 21, and is in meshing connection with the driving gear 28. The driving gear 28 is connected with a driving motor, and the driving motor is installed in the air guiding shell 21. When the orientation of the air guiding outlet 232 of the air guiding unit 20 is adjusted, the driving motor is started, and the driving motor drives the rotation of the driving gear 28. Under the driving of the driving gear 28, the annular internal tooth gear 29 in meshing connection with the driving gear 28 also rotates. However, since the annular internal tooth gear 29 is fixedly connected to the inner wall of the air guiding shell 21, the driving gear 28 finally drives the rotation of the air guiding unit 20. The driving gear 28 is installed in the air guiding unit 20, and the rotation of the air guiding unit 20 also causes the driving gear 28 to rotate around the axis 101. However, due to the gear ratio, the rotation speed of the gear with a larger diameter is smaller than that of the gear with a smaller diameter in meshing connection with the gear with a larger diameter. Therefore, the air guiding unit 20 finally deflects by a certain angle relative to the original position.

[0067] Since each air guiding unit 20 can be controlled to rotate independently, only the deflection of the adjacent air guiding units 20 by different angles needs to be controlled, so that the air guiding outlet 232 of the air guiding unit 20 at the required height can be rotated to the position required for air supply, and the influence of the rotation of a single air guiding unit 20 on the rotation of the air guiding unit 20 adjacent thereto, causing the orientation of the air guiding outlet 232 of the air guiding unit 20 at the adjacent position to change, can be eliminated.

[0068] Please refer to Figure 7 and Figure 8Unlike the previous embodiment, in an embodiment, the air guiding unit 20 is provided with a driving gear 28 and an annular external gear 30, the annular external gear 30 is fixedly connected to the outer wall surface of the air guiding port 221, the annular external gear 30 is in meshing connection with the driving gear 28, the driving gear 28 is connected with a driving motor, and the driving motor is installed in the air guiding shell 21. When the orientation of the air guiding outlet 232 of the air guiding unit 20 is adjusted, the driving motor is started, the driving motor drives the driving gear 28 to rotate, and the annular external gear 30 in meshing connection with the driving gear 28 also rotates under the driving of the driving gear 28. However, since the annular external gear 30 is fixedly connected to the outer wall surface of the air guiding port 221, the driving gear 28 finally drives the air guiding unit 20 to rotate. The driving gear 28 is installed in the air guiding unit 20, and the air guiding unit 20 rotates at the same time, which causes the driving gear 28 to rotate around the axis 101. However, since the gear ratio exists, the rotating speed of the large-diameter gear is smaller than that of the small-diameter gear in meshing connection with the large-diameter gear. Therefore, the air guiding unit 20 finally deflects by a certain angle relative to the original position.

[0069] Please refer to Figure 9 and Figure 10 In another embodiment, the air guiding unit 20 is driven to rotate by a belt 33. Specifically, the air guiding unit 20 is provided with a driving wheel 31 and a driven wheel 32, the driven wheel 32 is fixedly connected to the outer wall surface of the air guiding port 221, the driven wheel 32 and the driving wheel 31 are connected by the belt 33, the driving wheel 31 is connected with a driving motor, and the driving motor is installed in the air guiding shell 21. When the orientation of the air guiding outlet 232 of the air guiding unit 20 is adjusted, the driving motor is started, the driving motor drives the driving wheel 31 to rotate, and the driven wheel 32 connected with the driving wheel 31 by the belt 33 also rotates under the driving of the belt 33. However, since the driven wheel 32 is fixedly connected to the outer wall surface of the air guiding port 221, the driving wheel 31 finally drives the air guiding unit 20 to rotate. The driving wheel 31 is installed in the air guiding unit 20, and the air guiding unit 20 rotates at the same time, which causes the driving gear 28 to rotate around the axis 101. However, since the gear ratio exists, the rotating speed of the large-diameter gear is smaller than that of the small-diameter gear in meshing connection with the large-diameter gear. Therefore, the air guiding unit 20 finally deflects by a certain angle relative to the original position.

[0070] The axis 101 of the air guiding unit 20 extending in the up-down direction can rotate in the range of -90° to +90°. If the rotation range of the air guiding unit 20 can exceed 90°, although the range of adjusting the angle of the air outlet direction of the air guiding unit 20 is increased, the possibility of the air guiding inlet 231 and the jet port 222 of the adjacent air guiding unit 20 being in the same vertical line is also increased. When the air guiding inlet 231 and the jet port 222 of the adjacent air guiding unit 20 are in the same vertical line, backflow is formed between the jet port 222 and the air guiding inlet 231, affecting the air outlet effect. Therefore, the axis 101 of the air guiding unit 20 extending in the up-down direction is set to rotate in the range of -90° to +90°, which not only ensures a large air outlet direction adjustment range, but also reduces the possibility of the air guiding inlet 231 and the jet port 222 of the adjacent air guiding unit 20 being in the same vertical line

[0071] The specific way of controlling the rotation of the air guiding unit 20 can be various, for example, two control buttons of start and stop can be arranged on each air guiding unit 20, the control buttons can be arranged on a remote controller to control the air guiding unit 20 by sending wireless signals, or the control buttons can be arranged directly on the air guiding unit 20 to control the air guiding unit 20 by manually pressing the control buttons. When the start button of a designated air guiding unit 20 is pressed, the air guiding unit 20 starts to rotate counterclockwise or clockwise around the axis 101 extending in the up-down direction, when the rotation amplitude reaches +90° or -90°, the air guiding unit 20 starts to rotate in the opposite direction, when the rotation amplitude reaches +180° or -180°, the air guiding unit 20 starts to rotate in the opposite direction again, and so on, during the reciprocating movement of the air guiding unit 20, the stop button can be pressed at any time to stop the rotation of the air guiding unit 20. The rotation amplitude of the air guiding unit 20 can also be set to fixed gears, for example, six gear buttons of -30°, -60°, -90°, +30°, +60° and +90° can be arranged, the gear buttons can be arranged on a remote controller to control the air guiding unit 20 by sending wireless signals, or the gear buttons can be arranged directly on the air guiding unit 20 to control the air guiding unit 20 by manually pressing the gear buttons; when the -30° button is pressed, the air guiding unit 20 rotates counterclockwise by 30° relative to the initial position; when the -60° button is pressed, the air guiding unit 20 rotates counterclockwise by 60° relative to the initial position; when the -90° button is pressed, the air guiding unit 20 rotates counterclockwise by 90° relative to the initial position; when the +30° button is pressed, the air guiding unit 20 rotates clockwise by 30° relative to the initial position; when the +60° button is pressed, the air guiding unit 20 rotates clockwise by 60° relative to the initial position; when the +90° button is pressed, the air guiding unit 20 rotates clockwise by 90° relative to the initial position.

[0072] In an embodiment, the heat exchange unit 10 is placed below the at least two air guiding units 20, when the number of air guiding units 20 is increased to meet the air outlet requirements of different heights, if the number of air guiding units 20 is too large, the air guiding units 20 are stacked too high, which can make the center of gravity of the air conditioner indoor unit 100 unstable, and increase the possibility of the air conditioner indoor unit 100 falling. At the same time, when the air guiding units 20 are stacked too high, the fan 13 cannot provide enough power to make the air after heat exchange reach the air guiding units 20 above. Therefore, in order to control the reasonable height of the air conditioner indoor unit 100, preferably, the number of air guiding units 20 is set to 2 to 5.

[0073] The air outlet of the air conditioner indoor unit 100 is affected by the number of the air guiding units 20 and the width of the jet port 222. If the width of the jet port 222 is too large, the speed of the air after heat exchange cannot be greatly increased when the air flows out of the jet port 222, so that a large pressure difference cannot be formed in the air guiding air duct 23, and finally the air flow rate discharged from the air guiding air outlet 232 is small, which reduces the use effect of the air conditioner indoor unit 100. If the width of the jet port 222 is too small, too little air flows out of the jet port 222, and after mixing with the air in the air guiding air duct 23, the proportion of the air after heat exchange is too small, which cannot improve the indoor air. Therefore, in an embodiment, the width of the jet port 222 is preferably not less than 1 / 50 of the diameter of the air guiding air outlet 232 and not more than 1 / 2 of the diameter of the air guiding air outlet 232. For example, the width of the jet port 222 is preferably 1 / 30, 1 / 25, 1 / 20, 1 / 15, 1 / 10, 1 / 8, 1 / 5, 1 / 3, etc. of the diameter of the air guiding air outlet 232.

[0074] In the above embodiment, the width of the jet port 222 is set within a reasonable range, but if the width of the jet port 222 of each air guiding unit 20 is the same, a part of the air in the jet air duct 22 will be discharged from the jet port 222 when it flows through each air guiding unit 20, which causes the air in the jet air duct 22 to gradually decrease from bottom to top, and finally the jet air duct 22 of the air guiding unit 20 at the top may lack air, which causes the air guiding unit 20 at the top to have no air outlet, affecting the air outlet effect and use experience of the air conditioner indoor unit 100. At this time, when the number of air guiding units 20 is not large, for example, when there are four air guiding units, the width of the jet port 222 from bottom to top is A, B, C, and D, even if A, B, C, and D are equal, the air volume of the air flow discharged from each jet port 222 is different, but overall it will not have too much impact. In addition, if the width of each jet port 222 is small, even if A, B, C, and D are equal, the air volume is roughly the same. Of course, in order to improve the user experience, the air volume cannot be too small, that is, the width of the jet port cannot be too small, which means that if A, B, C, and D are equal, the air volume of the jet port 222 of the air guiding unit 20 at the bottom will be large, and the air volume of the jet port 222 of the air guiding unit 20 at the top will be small.

[0075] Please refer to Figure 12, in view of this, in a preferred embodiment, any two adjacent air induction units 20, wherein one air induction unit 20 jet port 222 width is not less than the width of the jet port 222 of another air induction unit 20 located below the air induction unit 20, that is, the width of the jet port 222 from bottom to top is A≤B≤C≤D. When the width of the jet port 222 is gradually increased from bottom to top, the width of the jet port 222 of the air induction unit 20 below is relatively small, and the air can be discharged normally, but the air amount in the jet air duct 22 of the air induction unit 20 below is relatively sufficient, and the pressure is relatively large than the pressure in the jet air duct 22 of the air induction unit 20 above, which promotes the discharge of air; the width of the jet port 222 of the air induction unit 20 above is relatively large, but the pressure in the jet air duct 22 of the air induction unit 20 above is relatively small. By controlling the width of the jet port 222, the pressure difference of the jet air duct 22 in the air induction unit 20 in the upward direction is balanced, and finally the air amount discharged from each jet port 222 of the air induction unit 20 tends to be consistent, so that the air discharged from each air induction unit 20 is more uniform.

[0076] Unlike the previous embodiment, to solve the problem that the air induction unit 20 above cannot discharge air, in an embodiment, in addition to the fan 13 provided in the heat exchange unit 10 for air intake and exhaust, other fans (not shown) are provided in the jet air duct 22 formed between the air induction units 20. The fan can make the air in the jet air duct 22 reach a higher distance, avoiding the problem that the air cannot reach the air induction unit 20 above. At this time, only the power of the fan 13 in the heat exchange unit 10 needs to be increased, and the air intake amount in the heat exchange air duct 14 needs to be increased, so that each air induction unit 20 can have enough air to discharge. The fan provided in the jet air duct 22 mainly functions to increase the distance of the discharged air after heat exchange, and does not involve the change of air direction. Generally, an axial fan is used, which is simple to install.

[0077] The jet port 222 of the air guiding unit 20 at different height positions has different width, and the air guiding units 20 can be detachably connected. By reducing or increasing the number of the air guiding units 20, the air outlet requirement of the air conditioner indoor unit 100 at different height positions can be met. For example, when the position mainly requiring air supply is below, i.e., the height requirement is low, the air guiding units 20 above can be detached to reduce the air outlet of the air conditioner indoor unit 100, so as to mainly meet the air outlet of the air guiding units 20 below. When the position requiring air supply is high, the air guiding units 20 can be continued to be installed to increase the height of the air conditioner indoor unit 100, so that the air conditioner indoor unit 100 also has an air outlet at a higher position to meet the air supply requirement. However, if the width of the jet port 222 of each air guiding unit 20 needs to be controlled and the width of the jet port 222 is gradually increased from bottom to top, the manufacturing and installation difficulty of the air conditioner indoor unit 100 will be increased. By adding other fans in the jet air duct 22 formed between the air guiding units 20, the air volume of the air guiding units 20 above can be increased, but the manufacturing cost is also increased, and the noise is also increased, which affects the experience effect of the air conditioner indoor unit 100.

[0078] Therefore, in an embodiment, a damper is further arranged in the air guiding unit, and the damper is arranged at the jet port 222 or in the jet air duct 22.

[0079] Specifically, a damper is arranged between the first air guiding cylinder 24 and the second air guiding cylinder 25, and the damper is used to adjust the opening degree of the jet port 222. The damper of the at least two air guiding units 20 can be independently controlled. The opening degree of the jet port 222 determines the speed of air discharge in the jet air duct 22, and determines the pressure difference in the air guiding duct 23, and finally determines the flow of mixed air discharged from the air guiding air outlet 232 and the distance of the mixed air.

[0080] Optionally, because the damper controls the air volume at the jet port 222, the jet port 222 of the air guiding unit 20 at different height positions can have the same width, or the width of the jet port 222 can be gradually increased from bottom to top.

[0081] Please refer to Figure 4 and Figure 6In an embodiment, the air door comprises a plurality of grid plates 261 arranged circumferentially along the jet port 222, when the grid plate 261 is opened, i.e. the plate surface of the grid plate 261 is parallel to the central axis of the jet port 222, the grid plate 261 functions to divide the air flowing out of the jet port 222, thereby reducing the viscous resistance between the air. The grid plate 261 can adjust the opening degree of the jet port 222, and the grid plate 261 is rotated to adjust the opening degree of the jet port 222. Specifically, the grid plate 261 can be rotated by an angle of -90°~+90° around its own axis. When the plate surface of the grid plate 261 is parallel to the central axis of the jet port 222, the grid plate 261 is fully opened, and the opening degree of the jet port 222 reaches the maximum. After the grid plate 261 is controlled to rotate clockwise or counterclockwise by 45°, the angle between the plate surface of the grid plate 261 and the central axis of the jet port 222 is 45°, and the opening degree of the jet port 222 is half of the maximum opening degree. After the grid plate 261 is controlled to rotate clockwise or counterclockwise by another 45°, the angle between the plate surface of the grid plate 261 and the central axis of the jet port 222 is 90°, the grid plate 261 is fully closed, the jet port 222 is closed, and the opening degree reaches the minimum. By separately controlling the rotation angle of the grid plate 261 in each air guiding unit 20, the air volume of each air guiding unit 20 can be separately controlled, so that the air conditioner indoor unit 100 can continuously adjust the air volume at different height positions to meet different working scenarios. For example, the air volume of each air guiding unit can be set to four different gears. In the closed gear, the angle between the plate surface of the grid plate 261 and the central axis of the jet port 222 is 90°, the grid plate 261 is fully closed, and the jet port corresponding to the grid plate does not blow air. In the first gear, the angle between the plate surface of the grid plate 261 and the central axis of the jet port 222 is 60°. In the second gear, the angle between the plate surface of the grid plate 261 and the central axis of the jet port 222 is 30°. In the third gear, the plate surface of the grid plate 261 is parallel to the central axis of the jet port 222, the grid plate 261 is fully opened, and the opening degree of the jet port 222 reaches the maximum.

[0082] The application further provides an air conditioner, which comprises an outdoor unit and an air conditioner indoor unit. The specific structure of the air conditioner indoor unit is the same as that of the above-mentioned embodiments. Since the air conditioner adopts all the technical solutions of the above-mentioned embodiments, it has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The outdoor unit and the air conditioner indoor unit are connected through a conduit. The outdoor unit provides heat exchange medium to the air conditioner indoor unit, which is used to exchange heat with indoor air, so as to increase or decrease the temperature of the indoor air entering the air conditioner indoor unit.

[0083] The above merely describes optional embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the inventive concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. An air conditioner indoor unit characterized by comprising: The application relates to a heat exchange unit and at least two air guiding units. The heat exchange unit has a heat exchange air duct; the at least two air guiding units are arranged one by one in a vertical direction, and each air guiding unit has an air guiding air duct and a jet air duct; the air guiding air duct has an air guiding air inlet and an air guiding air outlet, and both the air guiding air inlet and the air guiding air outlet are communicated with indoor air; the jet air duct has a flow guiding port and a jet port, the flow guiding port is communicated with the heat exchange air duct, and the jet air duct is used to blow air in the heat exchange air duct out of the jet port, so that negative pressure is formed in the air guiding air duct, and air in the air guiding air inlet flows towards the air guiding air outlet; wherein the axis of the air guiding unit extending in the vertical direction is rotatable; the heat exchange unit is arranged below the at least two air guiding units; the flow guiding ports and the heat exchange air duct are sequentially and serially communicated; the jet air duct also has a communication port; in any two adjacent air guiding units, the communication port of one air guiding unit is communicated with the flow guiding port of the other air guiding unit; the width of the jet port of one air guiding unit is not less than the width of the jet port of the other air guiding unit arranged below the one air guiding unit. The jet air duct is arranged in a ring shape; the flow guiding port is arranged at the lower end of the jet air duct; the communication port is arranged at the upper end of the jet air duct; and the jet port is arranged at one side of the jet air duct and arranged in a ring shape. The air guiding unit comprises an air guiding shell; the air guiding air duct penetrates through opposite sides of the air guiding shell; the jet port is arranged on the inner wall of the air guiding air duct; and the jet port is arranged towards the air guiding air outlet.

2. The air conditioning indoor unit as claimed in claim 1, wherein, The at least two air guiding units are independently rotatable.

3. The air conditioning indoor unit as claimed in claim 2, wherein The air guiding unit is provided with a driving gear, a ring-shaped inner tooth gear, the ring-shaped inner tooth gear is fixedly connected to the inner wall of the air guiding shell, the ring-shaped inner tooth gear is meshingly connected with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

4. The air conditioning indoor unit as claimed in claim 3, wherein The air guiding unit is provided with a driving gear, a ring-shaped outer tooth gear, the ring-shaped outer tooth gear is fixedly connected to the outer wall of the flow guiding port, the ring-shaped outer tooth gear is meshingly connected with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

5. The air conditioning indoor unit as claimed in claim 4, wherein The air guiding unit is provided with a driving gear, a ring-shaped outer tooth gear, the ring-shaped outer tooth gear is fixedly connected to the outer wall of the flow guiding port, the ring-shaped outer tooth gear is meshingly connected with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell. 6.The indoor unit of the air conditioner of claim 4, wherein, The air guiding unit is provided with a driving gear, a ring-shaped outer tooth gear, the ring-shaped outer tooth gear is fixedly connected to the outer wall of the flow guiding port, the ring-shaped outer tooth gear is meshingly connected with the driving gear, the driving gear is connected with a driving motor, and the driving motor is mounted on the air guiding shell.

7. The air conditioner indoor unit as claimed in claim 4, wherein The rotation range of the air guiding unit is -90 DEG to +90 DEG.

8. The air conditioning indoor unit according to any one of claims 4 to 7, characterized by The inner wall of the air guiding unit comprises a first flow guiding cylinder forming part of the jet air duct and a second flow guiding cylinder forming the air guiding air outlet; the diameter of the first flow guiding cylinder near the air guiding air outlet is smaller than the diameter of the second flow guiding cylinder far from the air guiding air outlet; and the jet port is formed between the end of the first flow guiding cylinder towards the air guiding air outlet and the end of the second flow guiding cylinder far from the air guiding air outlet. 9.The indoor unit of the air conditioner of claim 8, wherein, ​ 10.The indoor unit of the air conditioner of claim 3, wherein, The air guide unit is provided with a damper, which is arranged at the jet port or in the jet air duct, and is used to adjust the opening degree of the jet port. 11.The indoor unit of the air conditioner of claim 10, wherein, The dampers of the at least two air guide units are independently controllable. 12.The indoor unit of the air conditioner of claim 11, wherein, The damper comprises a plurality of grid plates arranged circumferentially around the jet port, and the grid plates are rotatable to adjust the opening degree of the jet port. 13.The indoor unit of the air conditioner of claim 3, wherein, The width of the jet port is not less than 1 / 50 of the diameter of the air guide outlet and not greater than 1 / 2 of the diameter of the air guide outlet. 14.The indoor unit of the air conditioner of claim 9, wherein, The diameter of the first air guide cylinder gradually decreases in the direction from the air guide inlet to the air guide outlet, and the diameter of the second air guide cylinder gradually increases in the direction from the air guide inlet to the air guide outlet. 15.The indoor unit of the air conditioner of claim 2, wherein, Among the at least two air guide units, the air guide unit located at the uppermost end is provided with a baffle at the communication port, and the baffle is used to close the communication port. 16.The indoor unit of the air conditioner of claim 1, wherein, The number of the air guide units is 2 to 5. 17.The indoor unit of the air conditioner of claim 1, wherein, The width of the jet port gradually increases from bottom to top.

18. An air conditioner characterized by comprising: The air conditioner indoor unit comprises an outdoor unit and an air conditioner indoor unit as claimed in any one of claims 1 to 17, and the outdoor unit is connected with the air conditioner indoor unit.

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