Air conditioner indoor unit

Abstract

The present invention discloses an indoor air conditioner, which comprises: a housing having an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet; a humidifying assembly including a steam generating device and a humidifying pipe, one end of the humidifying pipe away from the steam generating device extends into the air duct; a silencer disposed between the steam generating device and the humidifying pipe or on the humidifying pipe. The technical solution of the present invention enables the indoor air conditioner to humidify quietly.

Description

Technical Field

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

[0002] With the improvement of people's living standards, the use of air conditioners has become more and more common, and people's requirements for air conditioners have also become higher and higher. For example, it is necessary to humidify the air. If only a humidifying device is added to a traditional duct machine, when the humidifying device is working, very loud noise will be generated, which is not conducive to people's use of the air conditioner. Summary of the Invention

[0003] The main purpose of the present invention is to provide an indoor air conditioner, aiming to add a humidifying device and a muffler so that the air conditioner can humidify quietly.

[0004] To achieve the above object, the indoor air conditioner proposed by the present invention includes:

[0005] A housing having an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet;

[0006] A humidifying assembly including a steam generating device and a humidifying pipe, and one end of the humidifying pipe away from the steam generating device extends into the air duct;

[0007] A muffler disposed between the steam generating device and the humidifying pipe, or disposed on the humidifying pipe.

[0008] Optionally, the humidifying pipe extends along the length direction of the housing, and one end away from the muffler inclines towards the bottom of the housing.

[0009] Optionally, the muffler extends along the length direction or the width direction of the housing, and one end close to the humidifying pipe inclines towards the bottom of the housing.

[0010] Optionally, the muffler is fixedly connected to the outer side wall of one end of the housing.

[0011] Optionally, the humidifying pipe extends out of the housing and is connected to the muffler.

[0012] Optionally, the steam generating device is installed inside the housing, and the exhaust pipe of the steam generating device extends out of the housing and is connected to one end of the muffler away from the humidifying pipe.

[0013] Optionally, the indoor air conditioner further includes a siphon device, the drainage end of the siphon device is communicated with the steam generating device through a drainage pipe, and the water inlet end of the siphon device is used for communicating with a water source.

[0014] Optionally, the air conditioner indoor unit further includes a water receiving tray having a drainage end;

[0015] The siphon device is disposed near the drainage end of the water receiving tray, and the water inlet end of the siphon device communicates with the water receiving tray.

[0016] Optionally, the air conditioner indoor unit further includes a water level switch disposed near the siphon device, and the water inlet end of the siphon device and the water level switch are located within the water receiving tray.

[0017] Optionally, one end of the housing has a mounting plate which is part of the housing, and the siphon device is mounted on the mounting plate.

[0018] Optionally, one end of the housing further has a pipe pressing plate disposed corresponding to one end of the indoor heat exchanger of the air conditioner indoor unit; the pipe pressing plate and the mounting plate are spliced to form a partial end plate of the housing.

[0019] Optionally, the siphon device and the silencer are respectively located at opposite ends of the housing.

[0020] In the technical solution of the present invention, by providing a steam generating device and a silencer, the steam flowing out of the steam generating device enters the humidifying pipe after passing through the silencer, and then enters the housing through the humidifying pipe, flows out through the humidifying holes and then enters the air duct, and then enters the room together with the air flow to humidify the room; during this process, the silencer reduces the noise generated and transmitted by the steam, so that the air conditioner can humidify the air "quietly". BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural view of an embodiment of the air conditioner indoor unit of the present invention;

[0023] Figure 2 For Figure 1 the internal structural view;

[0024] Figure 3 For Figure 2 the left view;

[0025] Figure 4 For Figure 2 the right view;

[0026] Figure 5 Schematic diagram of the structure of another embodiment of the indoor unit of the air conditioner according to the present invention;

[0027] Figure 6 Schematic diagram of the structure of the water receiving tray of the indoor unit of the air conditioner according to the present invention;

[0028] Figure 7 Schematic diagram of the positional relationship between the fan and the indoor heat exchanger in one embodiment of the indoor unit of the air conditioner according to the present invention;

[0029] Figure 8 is Figure 7 Partial enlarged view at position A in

[0030] Figure 9 is Figure 7 Partial enlarged view at position B in

[0031] Figure 10 Schematic diagram of the positional relationship between the fan and the indoor heat exchanger in another embodiment of the indoor unit of the air conditioner according to the present invention;

[0032] Figure 11 Schematic diagram of the structure of the volute of the indoor unit of the air conditioner according to the present invention.

[0033] Explanation of the reference numerals in the drawings:

[0034] Label Name Label Name 100 Outer shell 110 End plate 111 Mounting plate 112 Pressurized pipe plate 200 Fan 210 Volute 211 Curved shell segment 212 Straight shell segment 220 Wind wheel 230 Motor 250 Air outlet 270 Fastening plate 300 Silencer 400 Humidifying pipe 500 Indoor heat exchanger 510 First heat exchanger 511 First side plate 520 Second heat exchanger 521 Second side plate 530 Connecting plate 531 Lug 600 Siphon device 700 Water receiving tray

[0035] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between the components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "and / or" throughout the text includes three scenarios. Taking A and / or B as an example, it includes the technical solution of A, the technical solution of B, and the technical solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The present invention mainly proposes an air conditioner indoor unit. There can be many forms of the air conditioner indoor unit, such as a wall-mounted air conditioner indoor unit, a floor-standing air conditioner indoor unit, etc. The main point is to adjust the positional relationship between the air outlet direction of the volute 210 and the indoor heat exchanger 500, so that the air flow can extend along the surface of the heat exchanger and pass through the heat exchanger to improve the heat exchange efficiency between the air flow and the heat exchanger.

[0040] The specific structure of the air conditioner indoor unit will be mainly described below.

[0041] Refer to Figures 1 to 11 , in an embodiment of the present invention, the air conditioner indoor unit includes:

[0042] A housing 100, the housing 100 having an installation cavity;

[0043] A volute 210, the volute 210 being installed in the installation cavity, and the air outlet 250 of the volute 210 being inclined towards the bottom of the installation cavity;

[0044] A first heat exchanger 510, the first heat exchanger 510 being installed in the installation cavity corresponding to the air outlet, and the first heat exchanger 510 extending upwards from the bottom to the top of the volute 210 to enclose an air inlet cavity between the volute 210, the first heat exchanger 510 and the bottom of the installation cavity.

[0045] Specifically, in this embodiment, the air conditioner indoor unit is described by taking the duct machine as an example. The overall shape of the housing 100 can be various, such as a cuboid-like shape (with depressions, protrusions, and openings set according to actual needs on the basis of a cuboid), a cylindrical shape, etc. The housing 100 has an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet. The fan 200 and the indoor heat exchanger 500 are both installed in the installation cavity. In some embodiments, the installation cavity is a part of the air duct. The air conditioner indoor unit includes a first heat exchanger 510. In some embodiments, it can also include multiple ones at the same time, such as the first heat exchanger 510 and the second heat exchanger 520. The first heat exchanger 510 and the second heat exchanger 520 can be arranged in parallel in the refrigerant circuit, or can be arranged in series in the refrigerant circuit. Whether the first heat exchanger 510 and the second heat exchanger 520 are arranged in series or in parallel, by setting a reasonable outdoor refrigerant flow path, the working modes of the first heat exchanger 510 and the second heat exchanger 520 can be different or the same, that is, the first heat exchanger 510 and the second heat exchanger 520 can refrigerate simultaneously, heat simultaneously; or one can refrigerate while the other can heat.

[0046] The fan 200 includes a volute 210 and an impeller 220 arranged in the volute 210. The motor 230 drives the impeller 220 to rotate, forming a negative pressure area and a positive pressure area in the volute 210, so that the air enters the volute 210 from the air inlet of the volute 210 and flows out of the volute 210 from the air outlet 250 of the volute 210. The volute 210 includes a curved surface part and a straight surface part, and the two enclose a receiving cavity for receiving the impeller 220 and an air outlet duct communicating with the receiving cavity. The air outlet is located at one end of the air outlet duct away from the receiving cavity. The orientation of the air outlet determines the direction of the air blown out by the volute 210. By tilting the direction of the air outlet of the volute 210 towards the bottom of the installation cavity, the air blown out by the volute 210 is tilted towards the bottom of the installation cavity.

[0047] There are many ways to achieve the downward tilt of the air outlet 250. An example is given below for illustration.

[0048] The top of the volute 210 has a curved surface shell section 211 and a straight surface shell section 212 connected to the curved surface shell section 211. The straight surface shell section 212 is tilted downward compared to the tangent plane at the top of the curved surface shell section 211. In this way, when the air flow flows out of the air outlet duct, it first flows along the curved surface shell section 211 of the volute 210 and then along the straight surface shell section 212 of the volute 210, so as to flow out in a downward tilt. The curved surface shell section 211 and the straight surface shell section 212 are smoothly transitioned, so that the air flow can flow out smoothly in a downward tilt.

[0049] The first heat exchanger 510 extends upward from the bottom to the top of the volute 210, such that the first heat exchanger 510 is inclined in the installation cavity, with its higher side close to the top of the volute 210 and its lower side close to the bottom of the installation cavity, or even directly connected to the bottom of the installation cavity. In this way, the air flow blown out from the volute 210 has a component extending along the air inlet side of the first heat exchanger 510, so that the air flow can fully pass through various positions of the first heat exchanger 510. At the same time, by enclosing an air inlet cavity between the volute 210, the first heat exchanger 510 and the bottom of the installation cavity, the air flow flowing out from the volute 210 needs to pass through the first heat exchanger 510 before being discharged from the air outlet of the air duct, that is, the air flow needs to exchange heat with the first heat exchanger 510.

[0050] In this embodiment, by inclining the air outlet 250 of the volute 210 towards the bottom of the installation cavity, and at the same time, arranging the first heat exchanger along the inclination trend of the air outlet 250 of the volute 210, the air flow flowing out from the volute 210 has a component flowing along the air inlet side of the first heat exchanger 510, so that the air flow can cover the air inlet side of the first heat exchanger 510 and pass through the first heat exchanger 510 under the action of the horizontal component of the air flow, thereby greatly improving the heat exchange duration and heat exchange efficiency between the air and the first heat exchanger 510, which is beneficial to improving the energy efficiency of the air conditioner; at the same time, since the air outlet of the volute 210 is inclined downward, the downward inclination angle of the first heat exchanger 510 can be reduced (the included angle with the bottom of the housing 100 increases), which is beneficial to the installation of the first heat exchanger 510 (the horizontal distance between the center of gravity of the first heat exchanger 510 and the support position at the bottom of the first heat exchanger 510 decreases); by arranging the first heat exchanger 510 in an inclined manner, it is beneficial to increase the heat exchange area of the first heat exchanger 510, thereby improving the heat exchanger efficiency.

[0051] In some embodiments, in order to ensure that the air flow flows along the air inlet side of the first heat exchanger 510 and covers the first heat exchanger 510, the angle between the direction of the air outlet 250 of the volute 210 and the inclination direction of the first heat exchanger 510 is set at an angle of 135° to 150°. Within this angle range, it can ensure that the air flow blown out from the volute 210 covers the first heat exchanger 510, and at the same time, it will not cause a large amount of air flow to directly blow the bottom of the installation cavity. When the angle is less than 135°, the air flow flowing out from the volute 210 is difficult to cover the air inlet side of the first heat exchanger 510, resulting in too little air flow passing through the bottom of the first heat exchanger 510, and thus reducing the utilization rate of the bottom of the first heat exchanger 510; when the angle is greater than 150°, part of the air flow flowing out from the volute 210 flows to the bottom of the air duct, resulting in too much air volume passing through the bottom of the first heat exchanger 510, which deteriorates the heat exchange effect and at the same time reduces the utilization rate of the upper part of the first heat exchanger 510.

[0052] There are various combination methods for setting the included angle between the air outlet 250 direction of the volute 210 and the inclination direction of the first heat exchanger 510 to be 135° to 150°. The following are examples for illustration:

[0053] The top of the volute 210 has a curved shell section 211 and a straight shell section 212 connected to the curved shell section 211. The straight shell section 212 is set at an included angle α of 5° to 10° with the tangent plane at the top of the curved shell section 211; and / or, the first heat exchanger 510 is set at an included angle β of 40° to 50° with the bottom of the installation cavity.

[0054] The included angle between the straight shell section 212 and the tangent plane at the top of the curved shell section 211 should not be too small. When the included angle is less than 5°, the first heat exchanger 510 must deflect a large angle to meet the better heat exchange efficiency, which is not conducive to the installation of the first heat exchanger 510, and will also cause an increase in the width dimension occupied by the first heat exchanger 510, which is not conducive to the rational use of space. Nor should it be too large. When the included angle is greater than 10°, the straight shell deflects too much from the tangent plane at the top of the curved shell section 211, which will cause a large offset when the air flow flows from the curved shell section 211 to the curved straight section, resulting in too large a wind pressure loss of the air flow and being not conducive to the efficient operation of the fan 200.

[0055] The included angle between the first heat exchanger 510 and the bottom of the installation cavity should not be too small. When the included angle is less than 40°, the lower end of the first heat exchanger 510 is far from the air outlet of the volute 210, which is not conducive to the air flow in the volute 210 flowing to the bottom of the air inlet side of the first heat exchanger 510, and will reduce the utilization rate of the bottom of the first heat exchanger 510; at the same time, it is not conducive to the installation of the first heat exchanger 510, and will also cause an increase in the width dimension occupied by the first heat exchanger 510, which is not conducive to the rational use of space. The included angle should not be too large either. When the included angle is greater than 50°, the heat exchange area of the first heat exchanger 510 will be reduced, and at the same time, the time for the air flow flowing out of the volute 210 and passing through the upper part of the first heat exchanger 510 will be shortened, which is not conducive to the heat exchange between the air flow and the first heat exchanger 510.

[0056] Regarding the second heat exchanger 520, the air conditioner indoor unit further includes a second heat exchanger 520. The second heat exchanger 520 is connected in series or in parallel with the first heat exchanger 510 in the refrigerant circuit of the air conditioner; the second heat exchanger 520 is located on the side of the first heat exchanger 510 facing away from the volute 210. When the first heat exchanger 510 cools and the second heat exchanger 520 heats, the air conditioner indoor unit can achieve dehumidification and reheating, and can dehumidify the air without affecting the user's use due to temperature changes. The second heat exchanger 520 is arranged on the side of the first heat exchanger 510 facing away from the volute 210, so that the air flow is dehumidified first and then heated, which is beneficial to improving the dehumidification efficiency. The second heat exchanger 520 is set at an included angle γ with the bottom of the housing 100, and γ is taken as 90 for example.

[0057] In some embodiments, to improve the compactness of the structure of the air conditioner indoor unit, the second heat exchanger 520 is vertically arranged. In this way, on the premise of ensuring the heat exchange efficiency, the arrangement between the blower 200, the first heat exchanger 510 and the second heat exchanger 520 is very compact, which is beneficial to improving the space utilization rate of the indoor unit.

[0058] In some embodiments, to further improve the convenience and stability of the installation of the first heat exchanger 510 and the second heat exchanger 520, the indoor unit further includes a connecting plate 530. One side of the connecting plate 530 is fixedly connected to the first side plate 511 of the first heat exchanger, and the other side of the connecting plate 530 is fixedly connected to the second side plate 521 of the second heat exchanger.

[0059] In this embodiment, the first heat exchanger 510 includes a first refrigerant pipe and a first side plate 511 connecting the first refrigerant pipes, and the second heat exchanger 520 includes a second refrigerant pipe and a second side plate 521 connecting the second refrigerant pipes. The first side of the connecting plate 530 is fixedly connected to the first side plate 511, and the second side of the connecting plate 530 is fixedly connected to the second side plate 521. The number of the connecting plates 530 is two, which are respectively arranged at the two end faces of the first heat exchanger 510 and the second heat exchanger 520 and correspond to the first side plate 511 and the second side plate 521 respectively. Through the arrangement of the connecting plate 530, the first heat exchanger 510, the second heat exchanger 520 and the connecting plate 530 can form a module. After the three are assembled, they can be installed into the housing 100. In this way, since the operable space is greatly increased, it is not only beneficial to greatly improve the installation efficiency of the three, but also, by connecting the first heat exchanger 510 and the second heat exchanger 520 in the form of the mounting plate 111, the relative position relationship (angle) between the first heat exchanger 510 and the second heat exchanger 520 can be effectively guaranteed. In this way, when the second heat exchanger 520 is set to be vertical, the deviation angle of the first heat exchanger 510 relative to the bottom of the housing 100 can be ensured very simply and conveniently, which is beneficial to improving the installation accuracy of the first heat exchanger 510 and ensuring the heat exchange effect of the heat exchanger.

[0060] There are many fixing methods for the connecting plate 530 and the first side plate 511 and the second side plate 521. In order to make full use of the space and improve the connection reliability, the connecting plate 530 is arranged in parallel with the first side plate 511 and the second side plate 521. Mounting holes for installing refrigerant pipes are formed on the first side plate 511 and the second side plate 521. Fastening lugs 531 are respectively arranged on the adjacent or opposite sides of the connecting plate 530. The fastening lugs 531 extend between two adjacent mounting holes and are fastened to the corresponding side plates through fasteners.

[0061] In this embodiment, fastening lugs 531 are provided on the first side and the second side of the connecting plate 530. The U-shaped refrigerant pipe is connected to the straight refrigerant pipe, and there is a gap for installing the fastening lugs 531 between two adjacent U-shaped pipes. The fastening lugs 531 are attached to the first side plate 511 or the second side plate 521, and the two are connected by fastening screws, bolts or buckles, etc. In this way, the reliability and installation accuracy among the first side plate 511, the second side plate 521 and the connecting plate 530 are greatly improved.

[0062] It should be noted that, in some embodiments, in order to ensure the relative position relationship between the volute 210 and the first heat exchanger, the indoor unit further includes a fastening plate 270. The air outlet end of the volute 210 is installed on the fastening plate 270, and the fastening plate 270 is fixedly connected to the housing. The fastening plate 270 has a fastening opening for installing the air outlet end of the volute 210. Through the arrangement of the fastening plate 270, the installation accuracy of the volute 210 is guaranteed, which is beneficial to ensuring the relative position relationship between the volute 210 and the first heat exchanger 510.

[0063] In some embodiments, in order to further improve the installation stability of the first heat exchanger 510 and the second heat exchanger 520, one or more of the connecting plate 530, the first side plate 511 and the second side plate 521 are fixedly connected to the end of the housing 100. One or more of the connecting plate 530, the first side plate 511 and the second side plate 521 are tightly connected to the end plate 110 of the housing 100, and the tight connection methods include screw connection, snap connection, etc. Among them, the end plate 110 of the housing 100 corresponding to the connecting plate 530, the first side plate 511 and the second side plate 521 is the pipe pressing plate 112, and the pipe pressing plate 112 is a part of the housing 100. Of course, in some embodiments, the pipe pressing plate 112 can be a fastening plate independent of the housing 100.

[0064] The bottom of the first heat exchanger 510 and / or the second heat exchanger 520 is fixedly connected to the bottom of the housing. There are many ways to fixedly connect the first heat exchanger 510 and the second heat exchanger 520 to the bottom of the housing, such as through screw fastening connection, through snap fixation connection, etc. In some embodiments, the air conditioner indoor unit further includes a water receiving tray 700, the water receiving tray 700 is located directly below the first heat exchanger 510, and the water receiving tray 700 is fixedly connected to the bottom of the housing. At this time, the bottom of the first heat exchanger 510 can be connected to the water receiving tray 700.

[0065] In some embodiments, in order to enable the air conditioner indoor unit to humidify the air quietly, the air conditioner indoor unit includes:

[0066] A housing 100, the housing 100 having an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet;

[0067] A humidifying component, the humidifying component includes a steam generating device and a humidifying pipe 400, and one end of the humidifying pipe 400 away from the steam generating device extends into the air duct;

[0068] A silencer 300, the silencer 300 is arranged between the steam generating device and the humidifying pipe 400, or is arranged on the humidifying pipe 400.

[0069] Specifically, in this embodiment, there are many forms of the steam generating device. For example, water can be turned into water vapor by ultrasound; or a steam generator can be set. The steam generator has a steam chamber, and a heating element is arranged in the steam chamber. When the temperature of the heating element reaches a preset temperature, water is injected into it, so that the water forms high-pressure water vapor. The form of the heating pipe can be various. It can be a soft pipe or a hard pipe. A number of humidifying holes are opened on the pipe wall of the humidifying pipe 400. After the water vapor is vaporized or atomized by the steam generating device, it is guided by the humidifying pipe 400 and flows out from the humidifying holes, enters the air duct, and finally is discharged into the room together with the air flow. No matter what kind of humidifying method is used, it will bring certain noise. At this time, in order not to affect the user's use, a silencer 300 is arranged on the steam transmission path to avoid the propagation and diffusion of noise.

[0070] Taking the example of arranging the silencer 300 between the steam generating device and the humidifying pipe 400, the water inlet end of the steam generating device obtains liquid water. After being converted into water vapor by the steam generating device, it passes through the silencer 300. The air inlet end of the humidifying pipe 400 is communicated with the silencer 300, so that the steam enters the air duct through the humidifying pipe 400. The form of the silencer 300 can be various. Taking the silencing pipe as an example, the steam flows out from the steam generating device and then enters the humidifying pipe 400 through the silencing pipe.

[0071] In this embodiment, by setting the steam generating device and the silencer 300, the steam flowing out of the steam generating device enters the humidifying pipe 400 after passing through the silencer 300, and enters the housing 100 through the humidifying pipe 400. After flowing out from the humidifying holes, it enters the air duct, and then enters the room together with the air flow to humidify the room; during this process, the silencer 300 reduces the noise generated and transmitted by the steam, so that the air conditioner can humidify the air "quietly".

[0072] In some embodiments, to prevent steam or water droplets (formed by steam condensation) from flowing back into the silencer 300 or the steam generating device, the humidifying pipe 400 extends along the length direction of the housing 100, and the end away from the silencer 300 is inclined towards the bottom of the housing 100. In this way, the water droplets can only flow along the humidifying pipe 400 in the direction away from the silencer 300, and finally flow out of the humidifying pipe 400, enter the water receiving tray 700, or flow out of the air conditioner. This avoids the backflow of water vapor or water droplets in the humidifying pipe 400 into the silencer 300 and the steam generating device.

[0073] Meanwhile, to further prevent the occurrence of backflow, the silencer 300 extends along the length direction or the width direction of the housing 100, and the end close to the humidifying pipe 400 is inclined towards the bottom of the housing 100. The silencer 300 can extend along the length direction of the housing 100 or along the width direction of the housing 100. The end of the silencer 300 connected to the humidifying pipe 400 is lower than the end of the silencer 300 connected to the steam generating device. This makes it so that steam or water droplets do not flow back into the steam generating device. It also prevents water from accumulating in the steam pipeline, avoiding the growth of bacteria therein, which is beneficial for the user to use the air conditioner healthily.

[0074] To improve the convenience of installation and disassembly of the silencer 300 and the humidifying pipe 400, the silencer 300 is fixedly connected to the outer side wall of one end of the housing 100. The silencer 300 is arranged outside the housing 100, making the installation and disassembly of the silencer 300 very convenient. At the same time, the humidifying pipe 400 extends out of the housing 100 and is connected to the silencer 300. There are many connection methods between the humidifying pipe 400 and the silencer 300, which can be plug-in connection, connection through a fastening sleeve, etc. Since the connection position between the humidifying pipe 400 and the silencer 300 is located outside the housing 100, the installation and disassembly of the humidifying pipe 400 are very convenient.

[0075] In some embodiments, to improve the space utilization rate and the structural compactness, and at the same time improve the convenience of loading and unloading the silencer 300, the steam generating device is installed inside the housing 100, and the exhaust pipe of the steam generating device extends out of the housing 100 and is connected to the end of the silencer 300 away from the humidifying pipe 400. By setting the connection position between the silencer 300 and the steam generating device outside the housing 100, the silencer 300 and the steam generating device can be separated without opening the housing 100.

[0076] In some embodiments, in order to improve the adaptability and integrity of the capabilities of the air conditioner indoor unit, the air conditioner indoor unit further includes a siphon device 600. The drainage end of the siphon device 600 is communicated with the steam generating device through a drain pipe, and the water inlet end of the siphon device 600 is used to communicate with a water source. The siphon device 600 is used to deliver water to the steam generating device, and it can have various forms, such as a water pump, etc. Through the setting of the siphon device 600, the air conditioner indoor unit has the ability to supply water to the steam generating device, so that it does not rely on external equipment to supply water to the steam generating device of the air conditioner indoor unit. This enables the air conditioner indoor unit to humidify the air in more scenarios.

[0077] The form of the water source can be diverse. A water tank can be additionally provided, or water can be drawn from the outside, or the water in the water receiving tray 700 of the air conditioner indoor unit can be utilized. The air conditioner indoor unit further includes a water receiving tray 700, and the water receiving tray 700 has a drainage end; the siphon device 600 is arranged close to the drainage end of the water receiving tray 700, and the water inlet end of the siphon device 600 is communicated with the water receiving tray 700. The overall shape of the water receiving tray 700 can be various. Taking the shape of a rectangular tray as an example, it is arranged below the indoor heat exchanger 500 to receive the condensed water generated during the refrigeration process and the dehumidification and reheating process. A drain pipe communicating the water receiving tray 700 and the outside of the water receiving tray 700 is arranged at one end of the water receiving tray 700, and the end where the drain pipe is arranged can be the drainage end of the water receiving tray 700. The siphon device 600 can be communicated with the water receiving tray 700 through a pipeline, or its water inlet end can be directly arranged in the water receiving tray 700, so that the siphon device 600 can suck the water in the water receiving tray 700 and deliver it to the steam generating device. In this way, it is beneficial to make full use of the existing structure and resources (the water receiving tray 700), and humidification can be carried out without setting up a water tank, greatly simplifying the structure of the air conditioner indoor unit.

[0078] When using the water in the water receiving tray 700 for humidification, in order to avoid the siphon device 600 running without load, when the water volume in the water receiving tray 700 is insufficient, the user is timely reminded to know to turn off the siphon device 600.

[0079] The indoor air conditioner further includes a water level switch, which is disposed near the siphon device 600. The water inlet end of the siphon device 600 and the water level switch are located in the water receiving tray 700. The water level switch is electrically connected to the siphon device 600 and is used to detect the water level in the water receiving tray 700. When the water level in the water receiving tray 700 is low and insufficient to supply the siphon device 600, the water level switch can directly turn off the siphon device 600 or send the detected information to the main control circuit of the air conditioner, and the main control circuit controls the siphon device 600 to stop working. At the same time, the water level switch can directly trigger the prompt device to work to prompt the user of water shortage. Among them, the prompt device can be one or more of a sound prompt device, a light prompt device, a vibration prompt device, and a text message prompt.

[0080] A first installation position for installing the water level switch and a second installation position for installing the water inlet end of the siphon device 600 are provided at the drainage end of the water receiving tray 700. The first installation position and the second installation position are grooves recessed towards the bottom of the water receiving tray 700, so that the water in the water receiving tray 700 can flow into the first installation position and the second installation position. The first installation position is located upstream of the second installation position, so that the water flows through the water level switch and then into the siphon device 600. In this way, the water level switch can timely control the siphon device 600 according to the detection result, minimizing the occurrence of the no-load phenomenon of the siphon device 600 and being beneficial to protecting the siphon device 600.

[0081] In some embodiments, in order to improve the convenience of installation and disassembly of the siphon device 600, one end of the housing 100 has a mounting plate 111, and the mounting plate 111 is a part of the housing 100. The siphon device 600 is mounted on the mounting plate 111. By using the mounting plate 111 for mounting the siphon device 600 as a part of the housing 100, during the disassembly process, the siphon device 600 can be installed and disassembled without opening the housing 100. Specifically, the mounting plate 111 and the rest of the housing 100 can be connected by screws, buckles, etc. When disassembling the siphon device 600, the cooperation between the mounting plate 111 and the housing 100 can be released, and then the mounting plate 111 and the siphon device 600 can be taken out together. When installing the siphon device 600, the mounting plate 111 and the siphon device 600 can be inserted into the housing 100 together, and then the mounting plate 111 and the rest of the housing 100 can be fastened. In this way, it is beneficial to the disassembly and installation of the siphon device 600.

[0082] In some embodiments, in order to improve the installation stability of the heat exchanger while improving the installation stability of the siphon device 600, one end of the housing 100 further has a tube pressing plate 112, and the tube pressing plate 112 is arranged corresponding to one end of the indoor heat exchanger 500 of the air conditioner indoor unit; the tube pressing plate 112 and the mounting plate 111 are spliced to form a partial end plate 110 of the housing 100. As a part of the end plate 110 of the housing 100, the tube pressing plate 112 presses the U-shaped refrigerant pipe or is connected to the side plate of the indoor heat exchanger 500 for installing and fixing the indoor heat exchanger 500. The tube pressing plate 112 and the mounting plate 111 are connected by means of screws, buckles, etc., so that the mounting plate 111 and the tube pressing plate 112 are mutually limited and fixed, improving the installation stability of the two.

[0083] In some embodiments, in order to make more full and reasonable use of the space of the housing 100 and improve the structural compactness, the siphon device 600 and the silencer 300 are respectively located at opposite ends of the housing 100. In this way, the siphon water source and atomization, silencing, and humidification are located at opposite ends of the housing 100, which is beneficial to installing the above devices in the gaps between the housing 100 and the heat exchanger and between the housing 100 and the wind wheel 220, so as to make full use of the internal and external spaces of the housing 100 and is beneficial to improving the space utilization rate. The siphon device 600 is communicated with the steam generating device through a hose to provide water source for it.

[0084] It should be noted that, in some embodiments, the siphon device 600, the humidifying component, and the silencer 300 can be regarded as an integral module and set as an optional configuration. When the user needs it, due to the convenience of disassembling the humidifying component, the silencer 300, and the siphon device 600, it is very convenient to add the siphon device 600, the humidifying component, and the silencer 300 to the housing 100 or inside. In this way, the functions of the air conditioner indoor unit can be adjusted according to the needs of different users, so as to meet the different user needs and is beneficial to improving the adaptability of the air conditioner indoor unit.

[0085] The present invention also provides an air conditioner, which includes an outdoor unit and an air conditioner indoor unit. The specific structure of the air conditioner indoor unit refers to the above embodiments. Since this air conditioner adopts all the technical solutions of the above all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one. Among them, the outdoor unit and the indoor unit are communicated through a refrigerant pipe to form a refrigerant circulation system.

[0086] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that, it includes: a housing having an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet; a humidifying component including a steam generating device and a humidifying pipe, and one end of the humidifying pipe away from the steam generating device extends into the air duct; a silencer disposed between the steam generating device and the humidifying pipe or on the humidifying pipe; a siphon device, the drainage end of the siphon device is communicated with the steam generating device through a drain pipe, and the water inlet end of the siphon device is used for communicating with a water source; and, a water receiving tray having a drainage end; the siphon device is disposed near the drainage end of the water receiving tray, and the water inlet end of the siphon device is communicated with the water receiving tray; the silencer is fixedly connected to the outer side wall of one end of the housing; the humidifying pipe extends out of the housing and is connected to the silencer; the steam generating device is installed inside the housing, and the exhaust pipe of the steam generating device extends out of the housing and is connected to one end of the silencer away from the humidifying pipe.

2. The air conditioner indoor unit according to claim 1, characterized in that, the humidifying pipe extends along the length direction of the housing, and one end away from the silencer inclines towards the bottom of the housing.

3. The air conditioner indoor unit according to claim 1, characterized in that, the silencer extends along the length direction or the width direction of the housing, and one end close to the humidifying pipe inclines towards the bottom of the housing.

4. The air conditioner indoor unit according to claim 1, characterized in that, the air conditioner indoor unit further includes a water level switch disposed near the siphon device, and the water inlet end of the siphon device and the water level switch are located in the water receiving tray.

5. The air conditioner indoor unit according to claim 1, characterized in that, one end of the housing has a mounting plate which is a part of the housing, and the siphon device is installed on the mounting plate.

6. The air conditioner indoor unit according to claim 5, characterized in that, one end of the housing further has a pipe pressing plate disposed corresponding to one end of the indoor heat exchanger of the air conditioner indoor unit; the pipe pressing plate and the mounting plate are spliced to form a part of the end plate of the housing.

7. The air conditioner indoor unit according to claim 1, characterized in that, the siphon device and the silencer are respectively located at opposite ends of the housing.

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