Air conditioner indoor unit and air conditioner

Abstract

The indoor unit of the air conditioner comprises a heat exchanger and a shell, a first air inlet is formed in the bottom wall of the shell, an air outlet and a second air inlet capable of being opened and closed are formed in the front wall of the shell, and the first air inlet and the second air inlet are communicated with a heat exchange channel leading to the air outlet in the shell. The heat exchanger is at least partially located in the heat exchange channel. By means of the arrangement, the first air inlet and the second air inlet both communicate with the heat exchange channel, when rapid cooling or heating is needed, the second air inlet can be opened, so that the first air inlet and the second air inlet can provide gas for the heat exchange channel at the same time, the flow of the gas introduced into the heat exchange runner is increased, and then the heat exchange efficiency of the heat exchanger is improved; the flow of air which is blown out of the air outlet and subjected to heat exchange is increased, and therefore the indoor space can be rapidly cooled or heated.

Description

Technical Field

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

[0002] An air conditioner consists of an outdoor unit and an indoor unit. The indoor unit is installed indoors and is used to blow cool or hot air into the room, thereby regulating the indoor ambient temperature. In the related art, the heat exchange efficiency of the indoor unit is low, which is not easy to meet the needs of rapid cooling or heating. Utility Model Content

[0003] The present disclosure aims to provide an air conditioner indoor unit and an air conditioner, wherein the air inlet flow rate of the air conditioner indoor unit is large, so that the heat exchange efficiency of the air conditioner indoor unit is high and the demand for rapid cooling or heating can be met.

[0004] In order to achieve the above-mentioned object, the present disclosure provides, in a first aspect, an air conditioner indoor unit, comprising:

[0005] heat exchangers; and

[0006] A shell, wherein the bottom wall of the shell is provided with a first air inlet, the front wall of the shell is provided with an air outlet and a second air inlet that can be opened and closed, the first air inlet and the second air inlet are respectively connected to a heat exchange channel leading to the air outlet inside the shell, and the heat exchanger is at least partially located in the heat exchange channel.

[0007] Optionally, an air guide structure is provided on the inner side of the front wall of the shell, and the first end of the heat exchanger is fitted and / or connected to the air guide structure. The heat exchanger, the front wall, the air guide structure and the first air inlet located below the air guide structure form a first side heat exchange channel, the heat exchange channel includes the first side heat exchange channel, and the second air inlet is connected to the first side heat exchange channel.

[0008] Optionally, the air guide structure is overlapped on the first end of the heat exchanger and is sealed to the heat exchanger.

[0009] Optionally, the heat exchanger has a first windward surface facing the front wall, and the first windward surface extends obliquely from the first end toward the first air inlet and away from the front wall.

[0010] Optionally, the air guide structure has an air inlet chamber connected to the second air inlet and a first vent connected to the air inlet chamber and the first side heat exchange channel, and the first vent is located between the first end of the heat exchanger and the front wall.

[0011] Optionally, the heat exchange channel includes a top heat exchange channel located above the air guide structure and connected to the air outlet, and the air guide structure has a second ventilation port connected to the air inlet chamber and the top heat exchange channel.

[0012] Optionally, the air guide structure includes a baffle, the air outlet is located above the baffle, the second air inlet is located below the baffle, and the first end of the heat exchanger is attached to and / or connected to the baffle.

[0013] Optionally, the heat exchanger is arranged in a V-shape with an opening facing upward, and has a second end opposite to the first end and a bottom end located between the first end and the second end, and a water receiving pan is provided at the bottom end of the heat exchanger.

[0014] Optionally, a heater is provided in the V-shaped opening of the heat exchanger.

[0015] Optionally, the air outlet is located above the second air inlet, and the indoor unit includes a first damper for opening and closing the second air inlet. The first damper is rotatably connected to the shell through a pivot shaft, and the pivot shaft is located between the air outlet and the second air inlet.

[0016] Optionally, a filter is provided at the second air inlet.

[0017] Optionally, the air-conditioning indoor unit also includes a second damper for opening and closing the air outlet, the second damper having a closed position, a first open position and a second open position, wherein the second damper closes the air outlet in the closed position; in the first open position, the second damper opens the air outlet, and the bottom end of the second damper is closer to the front wall than the top end of the second damper; in the second open position, the second damper opens the air outlet, and the top end of the second damper is closer to the front wall than the bottom end of the second damper.

[0018] A second aspect of the present disclosure provides an air conditioner, comprising the air conditioner indoor unit provided by the first aspect.

[0019] Through the above technical solution, the bottom wall of the shell is provided with a first air inlet, the front wall of the shell is provided with an air outlet and a second air inlet that can be opened and closed, the first air inlet and the second air inlet are respectively connected to the heat exchange channel leading to the air outlet inside the shell, and the heat exchanger is at least partially located in the heat exchange channel. When rapid cooling or heating is required, the second air inlet can be opened, and air can be supplied to the heat exchange channel through the first air inlet and the second air inlet at the same time, which can increase the flow rate of the gas entering the heat exchange channel and improve the heat exchange efficiency of the heat exchanger, so that the flow rate of the heat-exchanged air blown out of the air outlet is increased, thereby enabling the indoor temperature to be quickly cooled or heated.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a structural diagram of an air-conditioning indoor unit provided in an exemplary embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 A partial schematic diagram of the A position in the middle;

[0024] Figure 3 1 is a schematic structural diagram of an air conditioner indoor unit in cooling mode provided in an exemplary embodiment of the present disclosure; wherein the arrow direction in the figure indicates a path of gas flow;

[0025] Figure 4 1 is a schematic structural diagram of an air conditioner indoor unit in heating mode provided in an exemplary embodiment of the present disclosure; wherein the arrow direction in the figure indicates a path of gas flow;

[0026] Figure 5 is a schematic structural diagram of a through hole provided in an exemplary embodiment of the present disclosure;

[0027] Figure 6 is a schematic structural diagram of a through hole provided in another exemplary embodiment of the present disclosure;

[0028] Figure 7 2 is a schematic structural diagram of a through hole provided in yet another exemplary embodiment of the present disclosure.

[0029] Description of Reference Numerals

[0030] 10-shell; 11-front wall; 20-heat exchange channel; 21-first side heat exchange channel; 22-second side heat exchange channel; 23-middle heat exchange channel; 24-top heat exchange channel; 30-heat exchanger; 31-first heat exchanger; 311-first end; 312-first windward surface; 32-second heat exchanger; 321-second end; 322-second windward surface; 33-bottom end; 40-first air inlet; 50-water tray; 60-heater; 70-air guide structure; 71-air inlet cavity wall; 71a-through hole; 72-air inlet chamber; 73-first vent; 74-second vent; 80-second damper; 90-first damper; 100-air outlet; 200-second air inlet; 300-crossflow fan blade; 400-filter. DETAILED DESCRIPTION

[0031] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0032] In this disclosure, the directions "up, down, front, and back" are defined for the air conditioner indoor unit. These directions refer to the top, bottom, front, and back of the air conditioner during normal use. Unless otherwise specified, directional terms such as "inside" and "outside" refer to the inside and outside of the outline of a component or structure. Terms such as "first" and "second" are used to distinguish one element from another and do not convey order or importance.

[0033] like Figures 1 to 7 As shown, a first aspect of the present disclosure provides an air conditioner indoor unit, comprising a heat exchanger 30 and a housing 10. The bottom wall of the housing 10 is provided with a first air inlet 40, and the front wall 11 of the housing 10 is provided with an air outlet 100 and an openable and closable second air inlet 200. The first air inlet 40 and the second air inlet 200 are respectively connected to a heat exchange passage 20 within the housing 10 that leads to the air outlet 100. The heat exchanger 30 is at least partially located within the heat exchange passage 20. Through the above arrangement, the first air inlet 40 and the second air inlet 200 are both connected to the heat exchange passage 20, and can simultaneously provide gas to the heat exchange passage 20, thereby increasing the flow rate of gas entering the heat exchange passage 20, thereby improving the heat exchange efficiency of the heat exchanger 30, thereby increasing the flow rate of the heat-exchanged air blown out of the air outlet, and thereby quickly cooling or heating the indoor temperature.

[0034] In the above embodiment, when rapid heating or cooling is required, the second air inlet 200 can be opened, and gas can be introduced into the heat exchange channel 20 through the first air inlet 40 and the second air inlet 200, thereby increasing the flow rate of gas supplied to the heat exchange channel 20 and increasing the flow rate of gas participating in heat exchange in the heat exchanger 30, thereby improving the heat exchange efficiency of the heat exchanger 30.

[0035] In addition, the first air inlet 40 is arranged on the bottom wall and the second air inlet 200 is arranged on the front wall 11, so there is no need to set a vent on the top of the shell 10, and the air-conditioning indoor unit can be installed closer to the roof, making the air-conditioning indoor unit farther away from people in the vertical direction, so that the air blown out by the air-conditioning indoor unit is gentler when blowing on people.

[0036] In addition, the first air inlet 40 is arranged on the bottom wall, which can also play a dust-proof role. The air outlet 100 is arranged on the front wall 11 of the housing 10. Compared with the case where the air outlet 100 is arranged on the bottom wall, the air blown out of the air outlet 100 can be placed at a higher vertical height, which can prevent the air from the air outlet 100 from blowing directly at people. For example, in cooling mode, the temperature of the air blown out by the air outlet 100 is relatively low. When the air outlet 100 is arranged on the bottom wall, although the direction of the air blown out by the air outlet 100 is adjustable, the blowing direction is usually tilted downward, and the probability of the air blown out by the air conditioner indoor unit blowing on people is relatively high. However, when the air outlet 100 is arranged on the front wall 11, the air blown out by the air outlet 100 can blow horizontally forward. Since the air conditioner indoor unit is usually installed at a higher position, the air blown out by the air outlet 100 can be prevented from blowing directly at people.

[0037] In some embodiments, the air conditioner indoor unit further includes a second damper 80 for opening and closing the air outlet 100. The second damper 80 has a closed position, a first open position, and a second open position. In the closed position, the second damper 80 closes the air outlet 100, which can prevent dust from entering the heat exchange channel 20 through the air outlet 100, thereby playing a dust-proof role. Figure 3 As shown, when the second damper 80 is in the first open position, the second damper 80 opens the air outlet 100, and the bottom end 33 of the second damper 80 is closer to the front wall 11 than the top end of the second damper 80, so that the air blown out of the air outlet 100 can flow in a slightly inclined upward or horizontal direction under the guidance of the second damper 80. Figure 4 As shown, in the second open position, the second damper 80 also opens the air outlet 100, and the top end of the second damper 80 is closer to the front wall 11 than the bottom end 33 of the second damper 80, so that the wind blown out of the air outlet 100 is guided by the second damper 80 and tilted downward.

[0038] In the above-mentioned embodiment, the operation of the second damper 80 depends on its driving mechanism (not shown), which is usually arranged on the shell 10. The driving mechanism can drive the second damper 80 to flip clockwise or counterclockwise after it is extended. The driving mechanism can adopt conventional technical means. For example, the driving mechanism may include two electric telescopic rods arranged on the shell 10, and the driving ends of the two electric telescopic rods are respectively provided with mounting plates. The second damper 80 can be rotatably connected to the mounting plates at the driving ends of the two electric telescopic rods through two pivot shafts. One of the two mounting plates can also be provided with a servo motor, which is driven by the pivot shaft provided on the mounting plate. Driven by the servo motor, the second damper 80 can be rotated clockwise or counterclockwise, and the two electric telescopic rods can drive the second damper 80 to extend or retract. No further details are given here.

[0039] In addition, it should be understood that the air conditioner generally includes two modes: cooling mode and heating mode. In cooling mode, the cool air blown out of the air outlet 100 may blow directly onto the human body, which may cause discomfort. Figure 3 As shown, the second damper 80 can be placed in the first open position so that the wind from the air outlet 100 flows in a slightly upward or horizontal direction to avoid blowing directly onto people. Figure 4 As shown, in the heating mode, the wind blown out from the air outlet 100 is warmer, and the second air door 80 can be placed in the second open position so that the wind blown out from the air outlet 100 tilts downward and then gradually rises, thereby heating the indoor air faster.

[0040] In some embodiments, an air guide structure 70 is provided on the inner side of the front wall 11 of the shell 10, and one end of the heat exchanger 30 is attached to and / or connected to the air guide structure 70. The heat exchanger 30, the front wall 11, the air guide structure 70 and the first air inlet 40 below the air guide structure 70 form a first side heat exchange channel 21. The heat exchange channel 20 includes the first side heat exchange channel 21, and the second air inlet 200 is connected to the first side heat exchange channel 21.

[0041] In actual applications, due to space limitations, the first side heat exchange channel 21 of the heat exchanger 30 close to the front wall 11 is usually narrow. Gas can be replenished into the first side heat exchange channel 21 through the second air inlet 200, and gas is provided to the first side heat exchange channel 21 through the first air inlet 40 and the second air inlet 200. The flow rate of gas entering the first side heat exchange channel 21 can be increased, so as to increase the flow rate of gas from the first side heat exchange channel 21 to the heat exchanger 30, thereby improving the heat exchange efficiency of the heat exchanger 30.

[0042] In addition, the heat exchange channel 20 also includes a second side heat exchange channel 22, an intermediate heat exchange channel 23, and a top heat exchange channel 24. The second side heat exchange channel 22 is formed by the heat exchanger 30, the rear wall of the housing 10, and the first air inlet 40. A top heat exchange channel 24 is provided between the top of the air guide structure 70 and the top wall of the housing 10. The top heat exchange channel 24 is connected to the air outlet 100. An intermediate heat exchange channel 23 is provided between the top heat exchange channel 24 and the heat exchanger 30, and is connected to the top heat exchange channel 24. A crossflow fan 300 in the air conditioner indoor unit is provided in the intermediate heat exchange channel 23. The crossflow fan 300 is used to draw air from outside the air conditioner indoor unit into the heat exchange channel 20 and discharge the air from the air conditioner indoor unit through the air outlet 100. Driven by the crossflow blades 300, the gas entering the heat exchange channel 20 through the first air inlet 40 provided on the bottom wall first enters the first side heat exchange channel 21 and the second side heat exchange channel 22, then undergoes heat exchange in the heat exchanger 30 before entering the middle heat exchange channel 23 and the top heat exchange channel 24. The gas entering the top heat exchange channel 24 is then discharged through the air outlet 100. Meanwhile, the gas entering the heat exchange channel 20 through the second air inlet 200 first enters the first side heat exchange channel 21, then undergoes heat exchange in the heat exchanger 30 before entering the middle heat exchange channel 23. The gas entering the middle heat exchange channel 23 is then driven by the crossflow blades 300, passes through the top heat exchange channel 24, and is discharged through the air outlet 100. The gas can enter the first side heat exchange channel 21 simultaneously through the first air inlet 40 and the second air inlet 200, increasing the flow of the gas entering the first side heat exchange channel 21, thereby increasing the flow of the gas participating in the heat exchange of the heat exchanger 30 and improving the heat exchange efficiency of the heat exchanger 30.

[0043] It should be noted that the air guide structure 70 provided on the inner side of the front wall 11 of the housing 10 enables the gas in the indoor unit of the air conditioner to be smoothly discharged from the air outlet 100 after heat exchanged by the heat exchanger 30. Figure 3 and Figure 4 As shown, the gas entering the middle heat exchange channel 23 can rotate clockwise under the drive of the cross flow blades 300. When the gas rotates to the top of the air guide structure 70, the air guide structure 70 guides the gas through the top heat exchange channel 24 and then out of the air outlet 100.

[0044] like Figure 1 、 Figure 3 as well as Figure 4As shown, the heat exchanger 30 is located between the first air inlet 40 and the air guide structure 70. The air guide structure 70 overlaps the first end 311 of the heat exchanger 30. The heat exchanger 30 is mounted on the housing 10. The heat exchanger 30 can support the air guide structure 70 to prevent deformation of the air guide structure 70. In addition, the air guide structure 70 and the heat exchanger 30 can be sealed to prevent air leakage. This allows the gas in the first side heat exchange channel 21 to enter the intermediate heat exchange channel 23 through the heat exchanger 30, preventing the gas in the first side heat exchange channel 21 from entering the intermediate heat exchange channel 23 through the space between the heat exchanger 30 and the air guide structure 70 without passing through the heat exchanger 30 for heat exchange.

[0045] In some embodiments, the heat exchanger 30 has a first windward surface 312 facing the front wall 11, and the first windward surface 312 extends obliquely from the first end 311 toward the first air inlet 40 and in a direction away from the front wall 11, so that the windward surface of the heat exchanger 30 at the first side heat exchange channel 21 is larger, thereby allowing more gas to pass through the first air inlet 40 to the heat exchanger 30 and increasing the heat exchange area.

[0046] It should be noted that the heat exchanger 30 can be arranged in any appropriate form according to actual needs. For example, the heat exchanger 30 can be arranged in a V-shape with an open top, having a second end 321 opposite the first end 311 and a bottom end 33 located between the first end 311 and the second end 321. The second end 321 of the heat exchanger 30 can abut the rear wall of the housing 10 and be sealed therewith, thereby isolating the second side heat exchange channel 22 from the intermediate heat exchange channel 23. This prevents gas from entering the intermediate heat exchange channel 23 directly through the second side heat exchange channel 22 between the heat exchanger 30 and the rear wall of the housing 10 without passing through the heat exchanger 30. Furthermore, a water receiving pan 50 is provided at the bottom end 33 of the heat exchanger 30. Water droplets generated by heat exchange on the surface of the heat exchanger 30 flow through the surface of the heat exchanger 30 to the water receiving pan 50, and then the water in the water receiving pan 50 is discharged through a pipeline.

[0047] It should be noted that the heat exchanger 30 also has a second windward surface 322, which extends obliquely from the second end 321 toward the first air inlet 40 and in a direction away from the rear wall, so that the windward surface of the heat exchanger 30 at the second side heat exchange channel 22 is larger, thereby allowing more gas to pass through the first air inlet 40 to the heat exchanger 30 and increasing the heat exchange area.

[0048] In addition, a heater 60 is provided in the V-shaped opening inner shell. Figure 1 、 Figure 3 as well as Figure 4As shown, the heater 60 is arranged in the middle heat exchange channel 23 and is located in the V-shaped opening, so that most of the gas entering the middle heat exchange channel 23 after heat exchange through the first side heat exchange channel 21 and the second side heat exchange channel 22 through the heat exchanger 30 contacts the heater 60. The heater 60 is used for auxiliary heating of the air conditioner in the heating mode. The heater 60 can be an electric heater.

[0049] In some specific embodiments, there may be two heat exchangers 30, namely a first heat exchanger 31 and a second heat exchanger 32. The air guide structure 70 overlaps one end of the first heat exchanger 31. The overlapped end of the first heat exchanger 31 is the first end 311 of the heat exchanger 30. The first heat exchanger 31 extends obliquely from the first end 311 toward the first air inlet 40 and away from the front wall 11. The second end 321 of the heat exchanger 30 is the end of the second heat exchanger 32 that abuts the rear wall of the housing 10. The second heat exchanger 32 extends obliquely from the second end 321 toward the first air inlet 40 and away from the front and rear walls. The second heat exchanger 32 overlaps the first heat exchanger 31 and is sealed to the first heat exchanger 31 to prevent gas in the first and second side heat exchange channels 21, 22 from passing between the first and second heat exchangers 31, 32, and entering the intermediate heat exchange channel 23.

[0050] In some embodiments, the air guide structure 70 can be configured in any appropriate form according to actual needs. For example, the air guide structure 70 includes an air inlet chamber 72 connected to the second air inlet 200 and a first vent 73 connecting the air inlet chamber 72 and the first side heat exchange channel 21. The first vent 73 is located between the first end 311 of the heat exchanger 30 and the front wall 11. This allows gas to enter the air inlet chamber 72 through the second air inlet 200 and then enter the first side heat exchange channel 21 through the first vent 73, replenishing the gas in the first side heat exchange channel 21. This increases the flow rate of gas from the first side heat exchange channel 21 through the heat exchanger 30 into the intermediate heat exchange channel 23, thereby improving the intake heat exchange efficiency of the heat exchanger 30. In addition, the area near the first end 311 of the heat exchanger 30 can also be fully utilized in the heat exchange process, thereby improving heat exchange efficiency.

[0051] It should be understood that when the cross-flow fan blade 300 mentioned above rotates, the area of the first side heat exchange channel 21 close to the first ventilation port 73 will generate a negative pressure relative to the air intake chamber 72, which can suck the gas in the air intake chamber 72 into the first side heat exchange channel 21.

[0052] In addition, as mentioned above, the heat exchange channel 20 includes a top heat exchange channel 24, which is located above the air guide structure 70 and connected to the air outlet 100. The air guide structure 70 has a second ventilation port 74 connecting the air inlet chamber 72 and the top heat exchange channel 24.

[0053] In the above embodiment, the gas entering the air inlet chamber 72 from the second air inlet 200 can enter the top heat exchange channel 24 through the second ventilation port 74, and can neutralize the temperature of the gas in the top heat exchange channel 24, so that the temperature of the wind blown out from the air outlet 100 is milder.

[0054] It should be understood that when the cross-flow fan blades 300 mentioned above rotate, the gas in the middle heat exchange channel 23 passes through the top heat exchange channel 24 and is discharged from the air outlet 100, which will cause a negative pressure in the top heat exchange channel 24 relative to the air inlet chamber 72, and can suck the gas in the air inlet chamber 72 into the top heat exchange channel 24.

[0055] In some specific embodiments, when the air conditioner is in cooling mode, in order to achieve the temperature set by the user, the temperature of the air blown out of the air outlet 100 is usually cooler than the set temperature, and the temperature of the gas entering the air inlet chamber 72 from the second air inlet 200 is higher than the temperature of the air blown out of the air outlet 100. Passing the gas in the air inlet chamber 72 into the top heat exchange channel 24 can neutralize the temperature of the air blown out of the air outlet 100, so that the temperature of the air blown out of the air outlet 100 is slightly increased, thereby making the air blown out of the air outlet 100 more gentle. When the air conditioner is in heating mode, in order to reach the temperature set by the user, the temperature of the air blown out of the air outlet 100 is usually superheated than the set temperature, and the temperature of the gas entering the air inlet chamber 72 from the second air inlet 200 is lower than the temperature of the air blown out of the air outlet 100. Passing the gas in the air inlet chamber 72 into the top heat exchange channel 24 can neutralize the temperature of the air blown out of the air outlet 100, so that the temperature of the air blown out of the air outlet 100 is slightly reduced, thereby making the air blown out of the air outlet 100 more gentle.

[0056] In some embodiments, the first vents 73 and the second vents 74 can be configured in any appropriate form according to actual needs. For example, the first vents 73 can be configured as multiple through holes 71a provided in the air inlet cavity wall 71 at the bottom of the air guide structure 70. This can ensure the structural strength of the air guide structure 70 while allowing the gas in the air inlet chamber 72 to flow more evenly into the first side heat exchange channel 21. The second vents 74 can be configured as multiple through holes 71a provided in the air inlet cavity wall 71 at the top of the air guide structure 70. This can ensure the structural strength of the air guide structure 70 while allowing the gas in the air inlet chamber to flow more evenly into the top heat exchange channel 24.

[0057] It should be noted that the shape of the through hole 71a can be arbitrarily configured according to actual needs. Figures 5 to 7 As shown, the through hole 71a can be configured in a circular, rectangular and square shape, which will not be described in detail here.

[0058] In some embodiments not shown, the air guide structure 70 can also be configured in other forms. For example, the air guide structure 70 may include a baffle (not shown), with the air outlet 100 located above the baffle and the second air inlet 200 located below the baffle. The baffle may include a second vent 74, allowing air entering the air conditioner indoor unit through the second air inlet 200 to enter the top heat exchange channel 24 through the second vent 74 provided on the baffle. In this embodiment, the first end 311 of the heat exchanger 30 is affixed to and / or connected to the baffle, and the second vent 74 is located between the first end 311 of the heat exchanger 30 and the front wall 11. The second air inlet 200 may be directly connected to the first side heat exchange channel 21. After air enters the first side heat exchange channel 21 through the second air inlet 200, a portion of the air passes through the heat exchanger 30 into the middle heat exchange channel 23, while another portion of the air passes through the second vent 74 on the baffle into the top heat exchange channel 24. This will not be further described here.

[0059] In some embodiments, an air intake grille may be installed at the first air inlet 40 to prevent dust and increase the structural strength of the housing 10. A filter 400 may be provided at the second air inlet 200 to filter the air entering the air conditioner indoor unit through the second air inlet 200.

[0060] In some embodiments, the air outlet 100 is located above the second air inlet 200, and the air conditioner indoor unit includes a first damper 90 for opening and closing the second air inlet 200. The first damper 90 is rotatably connected to the shell 10 through a pivot shaft, and the pivot shaft is located between the air outlet 100 and the second air inlet 200.

[0061] In the above embodiment, the pivot shaft is located between the air outlet 100 and the second air inlet 200, so that the first damper 90 is located between the second air inlet 200 and the air outlet 100 when it is opened, and the second air inlet 200 and the air outlet 100 can be separated to avoid the wind blown out of the air outlet 100 being directly sucked into the air conditioner indoor unit through the second air inlet 200, thereby ensuring that the temperature of the gas entering the air conditioner indoor unit through the second air inlet 200 is close to the room temperature.

[0062] In addition, it should be understood that a servo motor can also be provided on the housing 10, and the servo motor is connected to the first damper 90 to drive the first damper 90 to rotate around the pivot axis, thereby driving the first damper 90 to open or close. Of course, the first damper 90 can also control the degree of opening of the first damper 90 according to the difference between the temperature set by the air conditioner and the room temperature.

[0063] Specifically, for example, the indoor environment can be defined as T 环 , the set temperature of the air conditioner can be defined as T 设 , the air conditioner is in cooling mode, when the temperature sensor of the air conditioner indoor unit detects that the indoor ambient temperature is too different from the set temperature, such as T 环 -T 设 ≥5℃, the first damper 90 can be driven by the servo motor to be fully opened, so that a large amount of air can enter the air inlet chamber 72 through the second air inlet 200. The gas entering the air inlet chamber 72 is respectively passed through the first ventilation port 73 and the second ventilation port 74 into the first side heat exchange channel 21 and the top heat exchange channel 24. The gas passed into the first side heat exchange channel 21 can make up for the shortage of air entering the first air inlet 40, increase the flow rate of the gas participating in the heat exchange in the heat exchange channel 20, so as to improve the heat exchange efficiency of the heat exchanger 30, increase the flow rate of the air blown out of the air outlet 100, so as to quickly cool down the room, and the gas passed into the top heat exchange channel 24 can be used to neutralize the temperature of the air blown out of the air outlet 100, so that the temperature of the air blown out of the air outlet 100 is slightly increased, thereby making the air blown out of the air outlet 100 more gentle. When T 环 -T 设 When the temperature is less than 5°C, the first damper 90 can be gradually closed by the servo motor to gradually reduce the amount of gas entering the air inlet chamber 72 through the second air inlet 200. 环 -T 设 ≤3℃ completely closed.

[0064] When the air conditioner is in heating mode, when the temperature sensor of the air conditioner indoor unit detects that the indoor ambient temperature is too different from the set temperature, such as T 设 -T 环 ≥5℃, the first damper 90 can be driven by the servo motor to fully open, so that a large amount of air can enter the air inlet chamber 72 through the second air inlet 200. The gas entering the air inlet chamber 72 is respectively passed through the first ventilation port 73 and the second ventilation port 74 into the first side heat exchange channel 21 and the top heat exchange channel 24. The gas passed into the first side heat exchange channel 21 can make up for the shortage of air entering the first air inlet 40, increase the flow rate of the gas participating in the heat exchange in the heat exchange channel 20, so as to improve the heat exchange efficiency of the heat exchanger 30, and increase the flow rate of the air blown out of the air outlet 100 so as to quickly heat up the room. The gas passed into the top heat exchange channel 24 can be used to neutralize the temperature of the air blown out of the air outlet 100, so that the temperature of the air blown out of the air outlet 100 is slightly reduced, thereby making the air blown out of the air outlet 100 more gentle. When T 设 -T 环 When the temperature is less than 5°C, the first damper 90 can be gradually closed by the servo motor to gradually reduce the amount of gas entering the air inlet chamber 72 through the second air inlet 200. 设 -T环 ≤3℃ completely closed.

[0065] The second aspect of the present disclosure provides an air conditioner, comprising an outdoor unit (not shown) and an indoor unit as provided in the first aspect of the present disclosure. The air conditioner has all the advantages of the indoor unit provided in the first aspect of the present disclosure, which will not be repeated here.

[0066] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0067] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0068] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An air conditioner indoor unit, characterized in that: include: heat exchangers; and A shell, wherein the bottom wall of the shell is provided with a first air inlet, the front wall of the shell is provided with an air outlet and a second air inlet that can be opened and closed, the first air inlet and the second air inlet are respectively connected to a heat exchange channel leading to the air outlet inside the shell, and the heat exchanger is at least partially located in the heat exchange channel.

2. The air conditioner indoor unit according to claim 1, characterized in that: An air guide structure is provided on the inner side of the front wall of the shell, and the first end of the heat exchanger is attached to and / or connected to the air guide structure. The heat exchanger, the front wall, the air guide structure and the first air inlet located below the air guide structure form a first side heat exchange channel, the heat exchange channel includes the first side heat exchange channel, and the second air inlet is connected to the first side heat exchange channel.

3. The air conditioner indoor unit according to claim 2, characterized in that: The air guide structure is overlapped on the first end of the heat exchanger and is sealed to the heat exchanger.

4. The air conditioner indoor unit according to claim 2, characterized in that: The heat exchanger has a first windward surface facing the front wall. The first windward surface extends obliquely from the first end toward the first air inlet and away from the front wall.

5. The air conditioner indoor unit according to claim 2, characterized in that: The air guide structure has an air inlet chamber connected to the second air inlet and a first vent connected to the air inlet chamber and the first side heat exchange channel. The first vent is located between the first end of the heat exchanger and the front wall.

6. The air conditioner indoor unit according to claim 5, characterized in that: The heat exchange channel includes a top heat exchange channel located above the air guide structure and connected to the air outlet. The air guide structure has a second ventilation port connected to the air inlet chamber and the top heat exchange channel.

7. The air conditioner indoor unit according to claim 2, characterized in that: The air guide structure includes a baffle, the air outlet is located above the baffle, the second air inlet is located below the baffle, and the first end of the heat exchanger is attached to and / or connected to the baffle.

8. The air conditioner indoor unit according to claim 2, characterized in that: The heat exchanger is arranged in a V-shape with the opening upward. The heat exchanger has a second end opposite to the first end and a bottom end located between the first end and the second end. A water receiving pan is provided at the bottom end of the heat exchanger.

9. The air conditioner indoor unit according to claim 8, characterized in that: A heater is provided in the V-shaped opening of the heat exchanger.

10. The air conditioner indoor unit according to claim 1, characterized in that: The air outlet is located above the second air inlet, and the air-conditioning indoor unit includes a first damper for opening and closing the second air inlet. The first damper is rotatably connected to the shell through a pivot shaft, and the pivot shaft is located between the air outlet and the second air inlet.

11. The air conditioner indoor unit according to claim 1, characterized in that: A filter is provided at the second air inlet.

12. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit also includes a second damper for opening and closing the air outlet, the second damper having a closed position, a first open position, and a second open position. In the closed position, the second damper closes the air outlet; in the first open position, the second damper opens the air outlet, and the bottom end of the second damper is closer to the front wall than the top end of the second damper; in the second open position, the second damper opens the air outlet, and the top end of the second damper is closer to the front wall than the bottom end of the second damper.

13. An air conditioner, characterized in that: It comprises the air conditioner indoor unit as described in any one of claims 1-12.

Images