Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner, relates to the technical field of air conditioners, and is designed for solving the problem that the scheme that a ducted air conditioner is directly adopted as a kitchen air conditioner is difficult to meet the use requirement in a kitchen space. The air conditioner indoor unit comprises a shell, a heat exchanger, a wind wheel assembly and an electric control box, the shell is provided with an inner cavity, an air induction opening and an air supply opening, the heat exchanger and the wind wheel assembly are arranged in the inner cavity, and the heat exchanger and the wind wheel assembly are sequentially arranged in the direction from the air induction opening to the air supply opening; the heat exchanger comprises a first side wall, a connecting wall and a second side wall which are sequentially arranged in a U shape, a mounting cavity is defined by the first side wall, the connecting wall and the second side wall, and the wind wheel assembly is arranged in the mounting cavity; and the electric control box is arranged outside the shell. The kitchen range hood is compact in structure and capable of meeting the use requirement in the kitchen space.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and more specifically, to an indoor air conditioner. Background Art

[0002] When a duct machine is in use, it is usually installed inside a ceiling. This makes it have relatively high requirements for the thickness dimension in the up-and-down direction during the design and manufacture of the duct machine, that is: it is necessary to design the duct machine as thin as possible, while having relatively low requirements for the length dimension in the left-and-right direction and the width dimension in the front-and-back direction.

[0003] If the duct machine is directly used as a kitchen air conditioner, since the kitchen space is usually about 4 square meters, and when installing the duct machine, pipes need to be routed and space needs to be made for the flue in the ceiling space, the originally narrow space becomes extremely limited, making it difficult to meet the usage requirements in the kitchen space. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an indoor air conditioner to solve the technical problem that the scheme of directly using a duct machine as a kitchen air conditioner is difficult to meet the usage requirements in the kitchen space.

[0005] The indoor air conditioner provided by the utility model includes a housing, a heat exchanger, a wind wheel assembly, and an electric control box. The housing has an inner cavity, an air inlet, and an air outlet. The heat exchanger and the wind wheel assembly are both arranged in the inner cavity, and in the direction from the air inlet to the air outlet, the heat exchanger and the wind wheel assembly are arranged in sequence; the heat exchanger includes a first side wall, a connecting wall, and a second side wall arranged in a U shape in sequence. The first side wall, the connecting wall, and the second side wall enclose an installation cavity, and the wind wheel assembly is arranged in the installation cavity; the electric control box is installed outside the housing.

[0006] By setting an indoor air conditioner mainly composed of a housing, a heat exchanger, a wind wheel assembly, and an electric control box, when the indoor air conditioner needs to operate, the wind wheel assembly starts, generating a negative pressure effect in the inner cavity of the housing, so that external air can enter through the air inlet, and after heat exchange treatment with the heat exchanger, it is discharged from the air outlet to perform corresponding refrigeration or heat treatment on the indoor environment. When the electric control box needs to be repaired, only the aluminum gusset needs to be disassembled, and there is no need to disassemble the housing, which is convenient for the repair of the electric control box.

[0007] By setting a heat exchanger with a U-shaped structure, an installation cavity that can accommodate the wind wheel assembly is formed inside it, ensuring the compactness of the structure of the indoor air conditioner, reducing the occupation of the external space of the heat exchanger, being beneficial to reducing the size of the indoor air conditioner, so that the indoor air conditioner can be installed in a narrow kitchen space and used as a kitchen air conditioner, effectively solving the technical problem that the existing duct machine is difficult to meet the usage requirements in the kitchen space.

[0008] By installing the electric control box outside the housing, on the one hand, the maintenance operation of the electric control box only needs to remove the aluminum gusset plate, without the need to disassemble the housing, which improves the maintenance operation efficiency. On the other hand, it does not occupy the inner cavity space, reduces the interference with the inner cavity components. At the same time, this setting is also conducive to the heat dissipation of the electric control box to ensure the electric control performance of the electric control box. Moreover, this setting can also prevent the condensed water in the inner cavity from splashing onto the electric control box after dripping, playing a certain waterproof protection effect on the electric control box.

[0009] Furthermore, the electric control box has a transportation position that fits the outer surface of the housing and an avoidance position that forms an angle with the outer surface of the housing. Among them, in the transportation position, the electric control box blocks at least part of the air inlet; in the avoidance position, the electric control box exposes the air inlet. The above setting of the electric control box enables it to switch to the corresponding position according to the current state of the air conditioner indoor unit. On the one hand, it reduces the damage risk during transportation and installation. On the other hand, it reduces the interference with the air intake process and ensures the air intake volume.

[0010] Furthermore, the electric control box is rotatably installed on the housing wall. This setting enables the electric control box to switch between the transportation position and the avoidance position through the rotation process, which is convenient to operate.

[0011] Furthermore, the housing includes a left wall and a right wall that are opposite and spaced apart in the left-right direction, and the air inlet includes a left air inlet opened on the left wall and a right air inlet opened on the right wall. The electric control box is rotatably installed on the left wall or the right wall. By rotatably installing the electric control box on the left wall or the right wall, when disassembling the aluminum gusset plate to maintain the electric control box, it can be carried out laterally on the housing, which is convenient for the operators to operate.

[0012] Furthermore, the housing also includes a front wall and a rear wall that are opposite and spaced apart in the front-rear direction and an upper wall and a lower wall that are opposite and spaced apart in the up-down direction. The air inlet also includes a rear air inlet opened on the rear wall, and the air outlet is opened on the front wall. The rotation axis of the electric control box extends in the up-down direction. Among them, when the electric control box is rotatably installed on the left wall, the rotation axis of the electric control box is located between the left air inlet and the air outlet; when the electric control box is rotatably installed on the right wall, the rotation axis of the electric control box is located between the right air inlet and the air outlet. Taking the case where the electric control box is rotatably installed on the left wall as an example, this setting enables that during the operation of the air conditioner indoor unit, that is, when the electric control box switches to the avoidance position, the electric control box will be close to the air outlet. Thus, when the external air flow enters the housing through the left air inlet, the side of the electric control box facing the left air inlet will guide the air flow, realizing the gathering of the air flow on the left side of the housing to further improve the air intake smoothness and air intake volume.

[0013] Furthermore, the electronic control box includes a rotating connection end, wherein the rotating connection end is rotatably connected to the housing wall; one of the rotating connection end and the housing wall is provided with a first snap, and the other of the rotating connection end and the housing wall is provided with a snap hole. At the avoidance position, the first snap is snap-fitted with the snap hole; the first snap is an elastic snap. This setting enables the electronic control box to be fixed at this position through the snap-fitting action of the first snap and the snap hole when the electronic control box is switched to the avoidance position, preventing the electronic control box from accidentally rotating and hitting the left wall due to the airflow during the air intake process, which plays a certain protective role for the electronic control box.

[0014] Furthermore, a second snap is provided on the side of the electronic control box facing the housing wall. At the transportation position, the electronic control box is snap-fitted with the edge of the air inlet that it blocks; the second snap is an elastic snap. This setting realizes the fixation of the electronic control box at the transportation position, enabling the electronic control box to closely fit the outer surface of the left wall during both the transportation process and the installation process, avoiding damage caused by the accidental rotation and opening of the electronic control box, which plays a certain protective role for the electronic control box.

[0015] Furthermore, the number of the first snaps is multiple, and the number of the snap holes is the same as that of the first snaps. The multiple first snaps are respectively snap-fitted with the multiple snap holes one by one. This setting can increase the connection stability between the electronic control box and the outer shell when the electronic control box is in the avoidance position; and / or, the number of the second snaps is multiple. This setting can increase the connection stability between the electronic control box and the outer shell when the electronic control box is in the transportation position.

[0016] Furthermore, the rotation angle of the electronic control box from the transportation position to the avoidance position is 90°. The above angle setting of the electronic control box enables the electronic control box to be roughly perpendicular to the left wall when the electronic control box is in the avoidance position. On the one hand, it will not cover or block the left air inlet due to too small an opening angle of the electronic control box. On the other hand, it will not be unable to guide the airflow entering from the left side of the outer shell due to too large an opening angle of the electronic control box.

[0017] Furthermore, the first side wall is adjacent to and opposite the left wall, the connecting wall is adjacent to and opposite the rear wall, and the second side wall is adjacent to and opposite the right wall. This setting not only saves the extra air cavity between the heat exchanger and the air inlet, reduces the occupation of the inner cavity space, and is beneficial to reducing the overall size of the outer shell, but also enables the external airflow to exchange heat with the heat exchanger after entering through the air inlet, improving the heat exchange efficiency.

[0018] Further, the outer shell is in a cuboid structure. The dimension of the outer shell in the left-right direction is less than 600 mm, the dimension of the outer shell in the front-back direction is less than 250 mm, and the dimension of the outer shell in the up-down direction is less than 230 mm. The dimension of the electric control box in the front-back direction is less than that of the outer shell in the front-back direction. The electric control box is located in the middle of the left wall or the rear wall. The dimension of the electric control box in the up-down direction is less than two-thirds of that of the outer shell in the up-down direction and greater than one-third of that of the outer shell in the up-down direction. By setting the dimensions of the outer shell within the above three-dimensional ranges, after removing the aluminum gusset plate, the air conditioner indoor unit can be directly inserted into the ceiling internal space obliquely from bottom to top, realizing the installation without damaging the ceiling and cutting the keel on the basis of the kitchen with a decorated ceiling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 The external structure schematic diagram of the air conditioner indoor unit provided by the embodiment of the present invention when the electric control box is in the transportation position;

[0021] Figure 2 The external structure schematic diagram of the air conditioner indoor unit provided by the embodiment of the present invention when the electric control box is in the avoidance position;

[0022] Figure 3 The front view structure schematic diagram of the air conditioner indoor unit provided by the embodiment of the present invention when the electric control box is in the avoidance position;

[0023] Figure 4 The top view structure schematic diagram of the air conditioner indoor unit provided by the embodiment of the present invention when the electric control box is in the avoidance position;

[0024] Figure 5 The structural decomposition schematic diagram of the air conditioner indoor unit provided by the embodiment of the present invention;

[0025] Figure 6 The structural schematic diagram of the electric control box of the air conditioner indoor unit provided by the embodiment of the present invention;

[0026] Figure 7 The top view structure sectional view of the air conditioner indoor unit provided by the embodiment of the present invention when the electric control box is in the transportation position;

[0027] Figure 8A top structural sectional view of the air conditioner indoor unit provided by an embodiment of the utility model when the electric control box is in the avoidance position.

[0028] Description of reference numerals:

[0029] 100-housing; 200-heat exchanger; 300-wind wheel assembly; 400-electric control box; 500-hinge; 600-water tray; 700-water pump;

[0030] 110-inner cavity; 120-air inlet; 121-left air inlet; 122-right air inlet; 123-rear air inlet; 130-air supply outlet; 141-left wall; 142-right wall; 143-front wall; 144-rear wall; 145-upper wall; 146-lower wall; 1461-mainboard; 1462-maintenance board; 147-card hole; 148-separation edge;

[0031] 210 - first side wall; 220 - connecting wall; 230 - second side wall;

[0032] 310-dual-axis motor; 320-wind wheel; 330-volute; 340-motor bracket; 341-connecting frame; 342-fixing frame;

[0033] 410 - rotating connection end; 411 - first buckle; 420 - second buckle;

[0034] 710-water pump bracket; 720-float switch; 730-drain pipe; 740-drain connector. DETAILED DESCRIPTION

[0035] At present, the interior of the duct unit is divided into a heat exchanger cavity and a fan cavity. In order to increase the heat exchange area, the heat exchanger is usually placed obliquely in the heat exchanger cavity, which results in a larger width of the duct unit and occupies a large amount of space in the front-to-back direction of the ceiling. In addition, the existing duct units mainly use side air outlets to discharge air. In order to increase the air volume, the air outlets are usually made thinner and longer, which results in a larger length of the duct unit and occupies a large amount of space in the left-right direction of the ceiling.

[0036] Therefore, if the structure of the existing duct air conditioner is directly transferred to the kitchen air conditioner, it is obviously too large to meet the usage requirements of the narrow kitchen space, and there is a lot of room for improvement.

[0037] Based on this, the purpose of the utility model is to provide an air-conditioning indoor unit to solve the technical problem that directly using a duct unit as a kitchen air conditioner is difficult to meet the usage requirements in the kitchen space.

[0038] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] Figure 1 It is a schematic external structure diagram of the air conditioner indoor unit provided in this embodiment when the electric control box 400 is in the transportation position; Figure 2 It is a schematic external structure diagram of the air conditioner indoor unit provided in this embodiment when the electric control box 400 is in the avoidance position. As Figure 1 and Figure 2 shown, this embodiment provides an air conditioner indoor unit, including a housing 100, a heat exchanger 200, a wind wheel assembly 300, and an electric control box 400. Specifically, the housing 100 has an inner cavity 110, an air inlet 120, and an air outlet 130. The heat exchanger 200 and the wind wheel assembly 300 are both arranged in the inner cavity 110, and in the direction from the air inlet 120 to the air outlet 130, the heat exchanger 200 and the wind wheel assembly 300 are arranged in sequence; the electric control box 400 is installed outside the housing 100.

[0040] When the air conditioner indoor unit needs to operate, the wind wheel assembly 300 starts, generating a negative pressure effect in the inner cavity 110 of the housing 100, so that external air can enter through the air inlet 120, and after heat exchange treatment with the heat exchanger 200, it is discharged from the air outlet 130 to perform corresponding cooling or heating treatment on the indoor environment. When the electric control box 400 needs to be repaired, only the aluminum gusset plate needs to be disassembled, and there is no need to disassemble the housing 100, which is convenient for the repair of the electric control box 400.

[0041] The air conditioner indoor unit forms an installation cavity that can accommodate the wind wheel assembly 300 by setting the heat exchanger 200 with a U-shaped structure, ensuring the compactness of the structure of the air conditioner indoor unit, reducing the occupation of the external space of the heat exchanger 200, and being beneficial to reducing the size of the air conditioner indoor unit, so that the air conditioner indoor unit can be installed in a narrow kitchen space and used as a kitchen air conditioner, effectively solving the technical problem that it is difficult for existing duct machines to meet the use requirements in the kitchen space.

[0042] By installing the electric control box 400 outside the housing 100, on the one hand, the repair operation of the electric control box 400 only needs to disassemble the aluminum gusset plate, and there is no need to disassemble the housing 100, improving the repair operation efficiency. On the other hand, it will not cause occupation of the space in the inner cavity 110, reducing the interference with the components in the inner cavity 110. At the same time, this setting is also beneficial to the heat dissipation of the electric control box 400 to ensure the electric control performance of the electric control box 400. And this setting can also avoid the condensed water in the inner cavity 110 from splashing onto the electric control box 400 after dripping, playing a certain waterproof protection effect on the electric control box 400.

[0043] Figure 3 The front view structural schematic diagram of the air conditioner indoor unit provided in this embodiment when the electric control box 400 is in the avoidance position; Figure 4 The top view structural schematic diagram of the air conditioner indoor unit provided in this embodiment when the electric control box 400 is in the avoidance position. Please continue to refer to Figure 1 and Figure 2 and in combination with Figure 3 and Figure 4 In this embodiment, the electric control box 400 has a transportation position that fits with the outer surface of the outer shell 100, and an avoidance position that forms an angle with the outer surface of the outer shell 100. Among them, in the transportation position, the electric control box 400 blocks at least part of the air inlet 120; in the avoidance position, the electric control box 400 exposes the air inlet 120.

[0044] When transporting or installing the air conditioner indoor unit, the electric control box 400 can be in the transportation position that fits with the outer surface of the outer shell 100. At this time, the electric control box 400 is closely attached to the outer shell 100, which can effectively reduce the damage suffered by the electric control box 400 during transportation and installation; when the air conditioner indoor unit is installed in place in the user's home, the electric control box 400 can be in the avoidance position that forms an angle with the outer surface of the outer shell 100. At this time, the air inlet 120 is completely exposed and will not be blocked by the electric control box 400, so that the external air flow can smoothly enter the inner cavity 110 of the outer shell 100 through the air inlet 120, ensuring the smoothness of the air intake.

[0045] The above setting of the electric control box 400 enables it to switch to the corresponding position according to the current state of the air conditioner indoor unit. On the one hand, it reduces the damage risk during transportation and installation, and on the other hand, it reduces the interference with the air intake process and ensures the air intake volume.

[0046] Please continue to refer to Figure 1 , Figure 3 and Figure 5 In this embodiment, the electric control box 400 is rotatably installed on the shell wall of the outer shell 100.

[0047] By setting the electric control box 400 to be rotatably connected to the shell wall of the outer shell 100, the electric control box 400 can be switched between the transportation position and the avoidance position through the rotation process, which is convenient to operate.

[0048] In other embodiments, the electric control box 400 can also be set to be slidably connected to the shell wall of the outer shell 100, and this setting can utilize the sliding process of the electric control box 400 relative to the outer shell 100 to realize its switching between the transportation position and the avoidance position.

[0049] Figure 5 The structural exploded view of the air conditioner indoor unit provided in this embodiment. AsFigure 5 As shown, the housing 100 may include a left wall 141 and a right wall 142 that are opposite and spaced apart in the left - right direction. The air inlet 120 includes a left air inlet 121 formed in the left wall 141 and a right air inlet 122 formed in the right wall 142. The electronic control box 400 is rotatably mounted on the left wall 141. That is, when the electronic control box 400 is in the transportation position, the electronic control box 400 blocks the left air inlet 121. Specifically in this embodiment, the electronic control box 400 in the transportation position causes partial blockage of the left air inlet 121.

[0050] By rotatably mounting the electronic control box 400 on the left wall 141, when disassembling the aluminum gusset plate for maintaining the electronic control box 400, it can be carried out laterally of the housing 100, which is convenient for the operator to operate.

[0051] It can be understood that in other embodiments, the electronic control box 400 can also be rotatably mounted on the right wall 142. In this case, when the electronic control box 400 is in the transportation position, it will block the right air inlet 122.

[0052] It should be noted that in this embodiment, the "left - right direction" can be represented by the arrow ab in Figure 5 ; the "front - back direction" can be represented by the arrow cd in Figure 5 ; and the "up - down direction" can be represented by the arrow ef in Figure 5 .

[0053] Please continue to refer to Figure 5 , in this embodiment, the housing 100 may further include a front wall 143 and a rear wall 144 that are opposite and spaced apart in the front - back direction and an upper wall 145 and a lower wall 146 that are opposite and spaced apart in the up - down direction. The air inlet 120 may further include a rear air inlet 123 formed in the rear wall 144. Among them, the air outlet 130 is formed in the front wall 143. The rotation axis of the electronic control box 400 extends in the up - down direction, and the rotation axis of the electronic control box 400 is located between the left air inlet 121 and the air outlet 130.

[0054] By setting the electronic control box 400 to rotate around the vertical axis to switch between the transportation position and the avoidance position, during the operation of the air - conditioner indoor unit, that is, when the electronic control box 400 switches to the avoidance position, the electronic control box 400 will be close to the air outlet 130. Thus, when the external air flow enters the housing 100 through the left air inlet 121, the surface of the electronic control box 400 facing the left air inlet 121 will guide the air flow, realizing the gathering of the air flow on the left side of the housing 100, so as to further improve the air - inlet smoothness and air - inlet volume.

[0055] Similarly, when the electric control box 400 is rotatably mounted on the right wall 142, the rotation axis of the electric control box 400 will be located between the right air outlet 122 and the air supply outlet 130. At this time, when the external air flow enters the housing 100 through the right air outlet 122, the surface of the electric control box 400 facing the right air outlet 122 will guide the air flow, achieving the convergence of the air flow on the right side of the housing 100. This setting can also improve the smoothness and volume of the incoming air.

[0056] By providing the air supply outlet 130 on the front wall 143 opposite to the rear wall 144, the air flow path is a straight line path, with small frictional resistance along the way, effectively reducing the air volume loss.

[0057] In this embodiment, the air intake and air outlet paths of the air conditioner indoor unit are as Figure 8 shown by the hollow arrows in.

[0058] Please continue to refer to Figure 5 , in this embodiment, the left wall 141, the rear wall 144 and the right wall 142 are of an integral structure, and the front wall 143 and the upper wall 145 are of an integral structure. Through this setting, not only can the number of components forming the housing 100 be reduced, improving the assembly efficiency, but also the structural strength of the housing 100 can be ensured.

[0059] In this embodiment, the housing 100 is generally a cuboid structure. Among them, the dimension of the housing 100 in the left-right direction is less than 600 mm, the dimension of the housing 100 in the front-rear direction is less than 250 mm, and the dimension of the housing 100 in the up-down direction is less than 230 mm. For Figure 1 illustration, that is, L < 600 mm, B < 250 mm, H < 230 mm. In addition, in order for the electric control box 400 not to affect the space of the keel after the aluminum gusset plate is removed from the housing 100 and to be tilted and installed into the ceiling space, the dimensions of the electric control box 400 need to meet certain requirements. In this embodiment, the dimension of the electric control box 400 in the front-rear direction is less than the dimension of the housing 100 in the front-rear direction, that is, less than 250 mm. The electric control box 400 is located in the middle of the left wall 141 or the rear wall 144, and the dimension of the electric control box 400 in the up-down direction is less than two-thirds of the dimension of the housing 100 in the up-down direction. At the same time, in order to ensure that sufficient electrical components for functional use can be installed in the internal space of the electric control box 400, the dimension of the electric control box 400 in the up-down direction is greater than one-third of the dimension of the housing 100 in the up-down direction.

[0060] By setting the dimensions of the housing 100 within the above three-dimensional ranges, after the aluminum gusset plate is removed, the air conditioner indoor unit can be directly inserted into the ceiling internal space from bottom to top obliquely, realizing the installation without damaging the ceiling and cutting the keel after the kitchen ceiling has been decorated.

[0061] It should be noted that the external dimensions of the above-mentioned outer shell 100 are for the electrical control box 400 in the transportation position. That is to say, when the electrical control box 400 rotates to fit the outer surface of the outer shell 100, its external dimensions are within the above range.

[0062] Please continue to refer to Figure 5 , in this embodiment, the lower wall 146 includes a main board 1461 and a maintenance board 1462 detachably and fixedly connected to the main board 1461. Among them, a notch is provided at the right front corner of the main board 1461, and the maintenance board 1462 is arranged at the notch. In the installation state of the air conditioner indoor unit, by removing the maintenance board 1462, the maintenance of the components in the inner cavity 110 can be conveniently realized.

[0063] Please continue to refer to Figure 4 , in this embodiment, the rotation angle of the electrical control box 400 from the transportation position to the avoidance position is 90°. That is to say, during the process of the electrical control box 400 switching from the transportation position to the avoidance position, it needs to rotate 90°.

[0064] The above angle setting of the electrical control box 400 enables the electrical control box 400 to be substantially perpendicular to the left wall 141 when the electrical control box 400 is in the avoidance position. On the one hand, it will not cover or block the left air outlet 121 due to too small an opening angle of the electrical control box 400. On the other hand, it will not be unable to guide the airflow entering from the left side of the outer shell 100 due to too large an opening angle of the electrical control box 400.

[0065] Please continue to refer to Figure 1 , in this embodiment, the rotation connection end 410 of the electrical control box 400 is rotationally connected to the left wall 141 through a hinge 500. Specifically, one leaf of the hinge 500 is fixedly connected to the rotation connection end 410, and the other leaf of the hinge 500 is fixedly connected to the left wall 141.

[0066] Figure 6 It is a schematic structural diagram of the electrical control box 400 of the air conditioner indoor unit provided in this embodiment. Please continue to refer to Figure 5 , and in combination with Figure 6 , in this embodiment, the electrical control box 400 may include a rotation connection end 410, where the rotation connection end 410 is rotationally connected to the left wall 141; a first buckle 411 is provided at the rotation connection end 410, and a card hole 147 is provided on the shell wall. In the avoidance position, the first buckle 411 is in snap-fit with the card hole 147; the first buckle 411 is an elastic buckle.

[0067] By providing a first buckle 411 at the rotatable connection end 410 of the electronic control box 400 and providing a card hole 147 on the left wall 141 that can be engaged and cooperated with the first buckle 411, when the electronic control box 400 is switched to the avoidance position, the electronic control box 400 can be fixed at this position through the engagement and cooperation of the first buckle 411 and the card hole 147, preventing the electronic control box 400 from accidentally rotating and hitting the left wall 141 due to the airflow during the air intake process, which plays a certain protective role for the electronic control box 400.

[0068] By setting the first buckle 411 as an elastic buckle, when it is necessary to switch the electronic control box 400 from the avoidance position to the transportation position, the engagement and fixation between the first buckle 411 and the card hole 147 can be released, and the first buckle 411 can be withdrawn from the card hole 147 to achieve the free switching of the electronic control box 400 to the transportation position.

[0069] Please continue to refer to Figure 6 , in this embodiment, the first buckle 411 is a U-shaped buckle, including two oppositely arranged elastic arms.

[0070] When the electronic control box 400 rotates to the avoidance position, the first buckle 411 will be inserted into the card hole 147 opened on the left wall 141. The specific insertion process is as follows: at the moment when the first buckle 411 enters the card hole 147, the two elastic arms of the first buckle 411 approach each other, and when the first buckle 411 is completely inserted into the card hole 147, its two elastic arms will move away from each other under the action of the elastic restoring force to reset, thereby realizing the engagement with the card hole 147; when it is necessary to switch the electronic control box 400 from the avoidance position to the transportation position, the two elastic arms of the first buckle 411 can be made to approach each other so that it can be withdrawn from the card hole 147, enabling the electronic control box 400 to freely rotate to the transportation position.

[0071] Please continue to refer to Figure 5 and Figure 6 , in this embodiment, the number of the first buckles 411 is two, and the number of the card holes 147 is the same as that of the first buckles 411, also two. The two first buckles 411 are respectively engaged with the two card holes 147 in a one-to-one correspondence.

[0072] The above settings not only increase the number of connection points between the rotatable connection end 410 of the electronic control box 400 and the left wall 141, improve the reliability of the fixed connection between the electronic control box 400 and the left wall 141 in the avoidance position, but also increase the distribution area of the connection points between the rotatable connection end 410 and the left wall 141, ensure the stability of the electronic control box 400 in the avoidance position, and reduce the shaking of the electronic control box 400 during the operation of the air conditioner indoor unit.

[0073] It should be noted that the first buckle 411 can also be in other quantity forms, such as three or four, etc. Correspondingly, the number of the card holes 147 is the same as that of the first buckle 411, so that a plurality of first buckles 411 can be correspondingly clamped in a plurality of card holes 147, thereby realizing reliable fixation of the electric control box 400 at the avoidance position.

[0074] Figure 7 FIG. 4 is a top structural sectional view of the indoor unit of the air conditioner provided in this embodiment when the electric control box 400 is in the transportation position; Figure 8 FIG. 6 is a top structural sectional view of the indoor unit of the air conditioner provided in this embodiment when the electric control box 400 is in the avoidance position. Please continue to refer to Figure 6 , and in combination with Figure 7 and Figure 8 In this embodiment, a second buckle 420 is provided on one side of the electric control box 400 facing the housing wall. In the transportation position, the electric control box 400 is clamped and cooperated with the edge of the air inlet 120 blocked by it; the second buckle 420 is an elastic buckle. Specifically, in the solution shown in the drawings of this embodiment, when the electric control box 400 is in the transportation position, the electric control box 400 is clamped and cooperated with the edge of the left air inlet 121.

[0075] Through the above settings, the fixation of the electric control box 400 in the transportation position is realized, so that the electric control box 400 can be closely attached to the outer surface of the left wall 141 during the transportation process and the installation process, avoiding damage caused by accidental rotation and opening of the electric control box 400, and playing a certain protective role for the electric control box 400.

[0076] In addition, by making the second buckle 420 clamped and fixed with the edge of the left air inlet 121 in the transportation position, the left air inlet 121 not only has the function of guiding air into the inner cavity 110, but also has the function of fixing the electric control box 400, without the need to additionally provide a structure on the left wall 141 that is clamped and cooperated with the second buckle 420, reducing the manufacturing cost.

[0077] Please continue to refer to Figure 5 In this embodiment, two left air inlets 121 are provided on the left wall 141, and the two left air inlets 121 are arranged at intervals in the front-rear direction. The two left air inlets 121 are separated by a separating edge 148, wherein the separating edge 148 forms an edge for being clamped and cooperated with the second buckle 420. Specifically, the separating edge 148 is a bending part.

[0078] Please continue to refer to Figure 6 In this embodiment, the number of the second buckles 420 is also multiple. This setting can ensure the reliability of the connection between the electric control box 400 and the left wall 141 in the transportation position.

[0079] Please continue to refer to Figure 7 and Figure 8, in this embodiment, the first side wall 210 of the heat exchanger 200 is adjacent to and opposite the left wall 141, the connecting wall 220 is adjacent to and opposite the rear wall 144, and the second side wall 230 is adjacent to and opposite the right wall 142. That is to say, the U-shaped direction of the heat exchanger 200 is along the arrangement direction of the left wall 141, the rear wall 144, and the right wall 142, and the heat exchanger 200 is adjacent to the left wall 141, the rear wall 144, and the right wall 142 at the same time.

[0080] Through the above settings, when the external air flow enters from the left air inlet 121 of the left wall 141, it can exchange heat with the first side wall 210 for the first time. When the external air flow enters from the right air inlet 122 of the right wall 142, it can exchange heat with the second side wall 230 for the first time. When the external air flow enters from the rear air inlet 123 of the rear wall 144, it can exchange heat with the connecting wall 220 for the first time. This not only eliminates the redundant air cavity between the heat exchanger 200 and the air inlet 120, reduces the occupation of the space of the inner cavity 110, and is beneficial to reducing the overall size of the housing 100, but also enables the external air flow to exchange heat with the heat exchanger 200 after entering through the air inlet 120, improving the heat exchange efficiency.

[0081] Please continue to refer to Figure 5 , in this embodiment, the impeller assembly 300 may include a biaxial motor 310, two impellers 320, and two volutes 330. Specifically, the two output shafts of the biaxial motor 310 are arranged in opposite directions along the left-right direction, and the two impellers 320 are respectively fixedly sleeved on the two output shafts; the two volutes 330 respectively surround the two impellers 320.

[0082] With this setting form of the impeller assembly 300, during the operation of the air conditioner indoor unit, the flow path of the external air flow is to first pass through the direct-flow heat exchanger 200, then pass through the impeller assembly 300, and further be discharged through the air outlet 130, which is a suction-type flow process. Compared with the blowing-type flow process of a conventional air duct machine, the heat exchange effect is improved.

[0083] Please continue to refer to Figure 5 , in this embodiment, the impeller assembly 300 may further include a motor bracket 340. Specifically, the motor bracket 340 includes a connecting frame 341 and a fixing frame 342. The connecting frame 341 is fixedly connected to the upper wall 145, and the fixing frame 342 is butt-jointed with the connecting frame 341 from bottom to top to form an installation space for installing the biaxial motor 310, thereby realizing the installation of the biaxial motor 310 inside the housing 100.

[0084] Please continue to refer to Figure 5, in this embodiment, the air conditioner indoor unit may further include a water receiving tray 600 and a water pump 700. Among them, the water receiving tray 600 is located between the heat exchanger 200 and the lower wall 146, and the heat exchanger 200 is installed on the water receiving tray 600; the water pump 700 is located in the lower area of the dual-axis motor 310 and is arranged with the dual-axis motor 310 in the front-rear direction; the water receiving tray 600 is fixedly provided with a water pump bracket 710, and the water pump 700 is installed on the water pump bracket 710.

[0085] The setting of the water receiving tray 600 can achieve the centralized collection of the condensed water generated during the operation of the heat exchanger 200, and avoid the condensed water dripping onto the ceiling and damaging the ceiling. By setting the water pump 700, the condensed water in the water receiving tray 600 can be actively discharged, ensuring the drainage efficiency.

[0086] Please continue to refer to Figure 5 , in this embodiment, the water pump 700 is provided with a float switch 720; the outlet of the water pump 700 is sequentially connected to a drain pipe 730 and a drain joint 740.

[0087] Among them, during the operation of the air conditioner indoor unit, the float switch 720 detects the water level in the water receiving tray 600. When the float switch 720 detects that the water level reaches the set value, the electric control box 400 controls the water pump 700 to start, and discharges the condensed water in the water receiving tray 600 through the drain pipe 730 and the drain joint 740 in sequence, avoiding adverse effects on the air conditioner indoor unit due to the excessive water level in the water receiving tray 600.

[0088] In this embodiment, the drain joint 740 can be a pagoda-shaped joint. This setting makes it difficult for the external water pipe to fall off from the drain joint 740 when connecting with the external water pipe.

[0089] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

[0090] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0091] In the above embodiments, the descriptions of orientations such as "upper", "lower", "front", "rear", "left", "right", "side", etc. are all based on the figures shown.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner indoor unit, characterized in that, It includes a housing (100), a heat exchanger (200), a wind wheel assembly (300) and an electric control box (400). The housing (100) has an inner cavity (110), an air inlet (120) and an air outlet (130). The heat exchanger (200) and the wind wheel assembly (300) are both arranged in the inner cavity (110), and in the direction from the air inlet (120) to the air outlet (130), the heat exchanger (200) and the wind wheel assembly (300) are arranged in sequence. The heat exchanger (200) includes a first side wall (210), a connecting wall (220) and a second side wall (230) which are arranged in a U shape in sequence. The first side wall (210), the connecting wall (220) and the second side wall (230) enclose an installation cavity, and the wind wheel assembly (300) is arranged in the installation cavity. The electric control box (400) is installed outside the housing (100).

2. The indoor air conditioner according to claim 1, wherein, The electric control box (400) has a transportation position that fits the outer surface of the housing (100) and an avoidance position that forms an angle with the outer surface of the housing (100). Among them, in the transportation position, the electric control box (400) blocks at least part of the air inlet (120); in the avoidance position, the electric control box (400) exposes the air inlet (120).

3. The air conditioner indoor unit according to claim 2, characterized in that, The electric control box (400) is rotatably installed on the shell wall of the housing (100).

4. The air conditioner indoor unit according to claim 3, wherein The housing (100) includes a left wall (141) and a right wall (142) that are opposite and spaced apart in the left-right direction. The air inlet (120) includes a left air inlet (121) opened on the left wall (141) and a right air inlet (122) opened on the right wall (142). The electric control box (400) is rotatably installed on the left wall (141) or the right wall (142).

5. The air conditioner indoor unit according to claim 4, wherein The housing (100) further includes a front wall (143) and a rear wall (144) that are opposite and spaced apart in the front-rear direction and an upper wall (145) and a lower wall (146) that are opposite and spaced apart in the up-down direction. The air inlet (120) further includes a rear air inlet (123) opened on the rear wall (144). The air outlet (130) is opened on the front wall (143). The rotation axis of the electric control box (400) extends in the up-down direction. Among them, when the electric control box (400) is rotatably installed on the left wall (141), the rotation axis of the electric control box (400) is located between the left air inlet (121) and the air outlet (130); when the electric control box (400) is rotatably installed on the right wall (142), the rotation axis of the electric control box (400) is located between the right air inlet (122) and the air outlet (130).

6. The air conditioner indoor unit according to claim 3, wherein The electric control box (400) includes a rotation connection end (410), wherein the rotation connection end (410) is rotationally connected to the housing wall; one of the rotation connection end (410) and the housing wall is provided with a first buckle (411), and the other of the rotation connection end (410) and the housing wall is provided with a buckle hole (147). In the avoidance position, the first buckle (411) is snap-fitted with the buckle hole (147); the first buckle (411) is an elastic buckle.

7. The air conditioner indoor unit according to claim 6, wherein One side of the electric control box (400) facing the housing wall is provided with a second buckle (420). In the transportation position, the electric control box (400) is snap-fitted with the edge of the air inlet (120) blocked by it; the second buckle (420) is an elastic buckle.

8. The air conditioner indoor unit according to claim 7, characterized in that, The number of the first buckles (411) is multiple, the number of the buckle holes (147) is the same as that of the first buckles (411), and the multiple first buckles (411) are respectively snap-fitted with the multiple buckle holes (147) one by one; and / or, the number of the second buckles (420) is multiple; and / or, the rotation angle of the electric control box (400) when switching from the transportation position to the avoidance position is 90°.

9. The air conditioner indoor unit according to claim 5, characterized in that, The first side wall (210) is adjacent to and opposite the left wall (141), the connecting wall (220) is adjacent to and opposite the rear wall (144), and the second side wall (230) is adjacent to and opposite the right wall (142).

10. The air conditioner indoor unit according to claim 5, characterized in that, The outer shell (100) is of a cuboid structure. The size of the outer shell (100) in the left-right direction is less than 600 mm, the size of the outer shell (100) in the front-rear direction is less than 250 mm, the size of the outer shell (100) in the up-down direction is less than 230 mm. The size of the electric control box (400) in the front-rear direction is less than the size of the outer shell (100) in the front-rear direction. The electric control box (400) is located in the middle of the left wall (141) or the rear wall (144). The size of the electric control box (400) in the up-down direction is less than two-thirds of the size of the outer shell (100) in the up-down direction, and the size of the electric control box (400) in the up-down direction is greater than one-third of the size of the outer shell (100) in the up-down direction.

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