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, an electric control box and a wind wheel assembly. The shell is provided with an inner cavity, an air induction opening and an air supply opening. The heat exchanger is arranged in the inner cavity and comprises a first side wall, a connecting wall and a second side wall which are sequentially arranged in a U shape, a mounting cavity opposite to the front wall of the shell 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 comprises a driving motor and a wind wheel driven by the driving motor to rotate; the electric control box is located above the driving motor and provided with a first fixing structure, and the first fixing structure is used for being fixedly connected with 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 particularly, to an indoor air conditioner. Background Art

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

[0003] If a ducted air conditioner is directly used as a kitchen air conditioner, since the kitchen space is usually about 4 square meters, and when installing the ducted air conditioner, pipes need to be laid 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 solution of directly using a ducted air conditioner as a kitchen air conditioner hardly meets the usage requirements in the kitchen space.

[0005] The indoor air conditioner provided by the utility model includes a housing, a heat exchanger, an electric control box and a wind wheel assembly. Among them, the housing has an inner cavity, an air inlet and an air outlet; the heat exchanger is arranged in the inner cavity. 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 opposite to the front wall of the housing. The wind wheel assembly is arranged in the installation cavity. The wind wheel assembly includes a driving motor and a wind wheel driven to rotate by the driving motor; the electric control box is located above the driving motor, and the electric control box is provided with a first fixing structure for fixedly connecting with the housing.

[0006] By setting an indoor air conditioner mainly composed of a housing, a heat exchanger, an electric control box and a wind wheel assembly, when the indoor air conditioner needs to operate, the driving motor of the wind wheel assembly starts to drive the wind wheel to rotate, so as to generate a negative pressure effect in the inner cavity of the housing, enabling external air to be sucked in through the air inlet, and after heat exchange treatment with the heat exchanger, it is discharged through the air outlet to perform corresponding cooling or heating treatment on the indoor environment.

[0007] By providing a heat exchanger with a U-shaped structure, an installation cavity for accommodating the impeller assembly is formed inside the air conditioner indoor unit, achieving effective utilization of the inner cavity space, ensuring the structural compactness of the air conditioner indoor unit, and facilitating the reduction of the length dimension in the left-right direction and the width dimension in the front-back direction of the air conditioner indoor unit. By placing the electric control box above the drive motor, not only can the lateral space of the inner cavity be further saved, but also the length of the heat exchanger does not need to be reduced, ensuring the heat exchange capacity of the heat exchanger. Among them, the first fixing structure can realize the fixed connection between the electric control box and the housing after the electric control box is installed above the drive motor, ensuring the installation stability of the electric control box.

[0008] Further, the first fixing structure is fixedly connected to the front wall of the housing, and the front wall is also provided with a maintenance opening opposite to the electric control box. The setting of the maintenance opening enables direct access through the above-mentioned maintenance opening when the electric control box needs to be maintained, without the need to disassemble and assemble the housing, facilitating operation and improving the maintenance efficiency.

[0009] Further, the air conditioner indoor unit further includes a water receiving tray and a water pump. The water receiving tray is located below the heat exchanger, and the lower surface of the water receiving tray forms the lower wall of the housing; the water pump is arranged in the inner cavity, and the water inlet of the water pump is communicated with the water receiving tray. This setting can not only achieve centralized collection and active drainage of condensed water, but also reduce the number of components of the air conditioner indoor unit and improve the assembly efficiency.

[0010] Further, the air conditioner indoor unit further includes a motor bracket. The motor bracket is fixedly connected to the housing, and the drive motor is installed on the motor bracket; the motor bracket is provided with a support portion for supporting the electric control box. The above-mentioned setting of the motor bracket provides an installation foundation for the drive motor, enabling the drive motor to be stably located in the inner cavity of the housing and ensuring the working stability of the drive motor. By providing a support portion on the motor bracket, the electric control box can be supported, optimizing the force on the housing while ensuring the stability of the electric control box.

[0011] Further, the motor bracket is provided with a second fixing structure for fixedly connecting with the electric control box. This form of fixedly connecting the electric control box to both the housing and the motor bracket increases the number of constraint points for the electric control box and also increases the distribution area of the constraint points for the electric control box, ensuring the reliability of the constraint on the electric control box, reducing the sway of the electric control box, and thus ensuring the electric control performance of the electric control box.

[0012] Further, the motor bracket is fixedly connected to the upper wall and / or the front wall of the housing. This setting ensures the installation stability of the motor bracket, thereby ensuring the installation stability of the electric control box and the driving motor; and / or, the motor bracket is provided with a receiving groove penetrating in the front-rear direction, the bottom wall of the receiving groove forms the supporting portion, the opening of the receiving groove faces upward, and the electric control box is received between the receiving groove and the upper wall. This setting can not only support the electric control box, but also limit the electric control box in the left-right direction.

[0013] Further, in the front-rear direction, the size of the first side wall is smaller than that of the second side wall. The first side wall forms an installation notch at its free end, and the installation notch faces the second side wall in the left-right direction. The water pump is arranged in the installation notch. By arranging the water pump at the above position, the blockage of the air flow during the air intake process can be reduced, thereby weakening the influence on the air field and ensuring the air intake volume and the air outlet volume.

[0014] Further, the water receiving tray is provided with a water guiding area, a drain port and a sinking structure. The water guiding area is located directly below the heat exchanger. The water receiving tray has a first side edge and a second side edge arranged at intervals in the left-right direction. Among them, the drain port is arranged on the first side edge; in the direction from the second side edge to the first side edge, the water guiding area gradually slopes downward; the sinking structure is located between the water guiding area and the drain port, and the water inlet of the water pump is communicated with the sinking structure. When draining water by using the water pump, by arranging a sinking structure communicated with the water inlet of the water pump between the water guiding area and the drain port, when the condensed water flows from the water guiding area to the drain port, it will pass through the sinking structure, so as to use the sinking structure to precipitate impurities in the condensed water, prevent the impurities from being sucked into the water pump and blocking or even damaging the water pump, which plays a certain protective role for the water pump.

[0015] Further, a plurality of water blocking strips are provided on the sinking structure, and the plurality of water blocking strips are configured to form a labyrinth flow channel from the water guiding area to the drain opening. This setting can form a labyrinth flow channel between the water guiding area and the drain opening. By utilizing the blocking effect of the water blocking strips on the flow of condensed water, it is possible to block impurities therein and prevent the impurities from flowing out and blocking the drain opening; and / or, the water receiving tray is further provided with a U-shaped fixing area, a first rib, and a second rib. The U-shaped direction of the U-shaped fixing area is the same as the U-shaped direction of the heat exchanger, and the heat exchanger is clamped in the U-shaped fixing area; the first rib is arranged at the first end of the U-shaped fixing area, the second rib is arranged at the second end of the U-shaped fixing area, and the first rib separates the sinking structure from the U-shaped fixing area. By providing the above-mentioned U-shaped fixing area in the water receiving tray, the heat exchanger can be fixed. Moreover, by respectively providing the first rib and the second rib at the two ends of the U-shaped fixing area, the heat exchanger can also be limited, preventing the heat exchanger from moving forward.

[0016] Further, the motor bracket is further provided with a water pump connection part, the water pump is installed on the motor bracket through the water pump connection part, the water pump is located below the motor bracket, and the water pump and the driving motor are arranged in the front-rear direction.

[0017] Further, the water receiving tray is provided with a water guiding area, a drain opening, and a sinking structure. The water guiding area is located directly below the heat exchanger. The water receiving tray has a third side edge and a fourth side edge spaced apart in the front-rear direction. Among them, the third side edge is close to the front wall of the housing, and the fourth side edge is close to the rear wall of the housing; drain openings are provided at both ends of the water receiving tray in the left-right direction, and the drain openings are close to the third side edge; from the fourth side edge to the third side edge, the water guiding area gradually slopes downward; the sinking structure is located directly below the water pump, and the water inlet of the water pump is communicated with the sinking structure. The setting of the sinking structure enables impurities in the condensed water to enter the sinking structure for precipitation during the flowing process, so that when draining water using the water pump, the impurities will not enter the water pump to block or even damage the water pump, playing a certain protective role for the water pump.

[0018] Furthermore, the drive motor is a dual-axis motor, and the two output shafts of the dual-axis motor are arranged in opposite directions along the left-right direction. The number of wind wheels is two, and the two wind wheels are respectively fixedly sleeved on the two output shafts in a one-to-one correspondence. The two wind wheels are arranged at intervals along the left-right direction; the electronic control box is located between the two wind wheels. This form of using one drive motor to simultaneously drive two wind wheels can save the inner cavity space and is conducive to further reducing the size of the air conditioner indoor unit. By arranging the electronic control box between the two wind wheels, the effective utilization of the space between the two wind wheels is realized, ensuring the structural compactness. Moreover, since the electronic control box is located above the drive motor, it can also reduce the blockage of the wind field, thereby reducing the air volume loss. 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 use in 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 FIG. 1 is a schematic external structure diagram of an air conditioner indoor unit provided in Embodiment 1 of the present invention;

[0021] Figure 2 FIG. 2 is a schematic internal structure diagram of an air conditioner indoor unit provided in Embodiment 1 of the present invention;

[0022] Figure 3 FIG. 3 is a schematic front view structural sectional view of an air conditioner indoor unit provided in Embodiment 1 of the present invention;

[0023] Figure 4 FIG. 4 is a schematic installation diagram of the drive motor of the air conditioner indoor unit provided in Embodiment 1 of the present invention on the motor bracket;

[0024] Figure 5 FIG. 5 is a schematic structural diagram of the water receiving tray of the air conditioner indoor unit provided in Embodiment 1 of the present invention;

[0025] Figure 6 FIG. 6 is a schematic internal structure diagram of an air conditioner indoor unit provided in Embodiment 2 of the present invention;

[0026] Figure 7 FIG. 7 is a schematic installation diagram of the drive motor of the air conditioner indoor unit provided in Embodiment 2 of the present invention on the motor bracket;

[0027] Figure 8 FIG. 8 is a schematic internal structure diagram of an air conditioner indoor unit provided in Embodiment 3 of the present invention;

[0028] Figure 9 The side view structural sectional view of the air conditioner indoor unit provided in Embodiment 3 of the present utility model;

[0029] Figure 10 The installation schematic diagram of the driving motor of the air conditioner indoor unit provided in Embodiment 3 of the present utility model on the motor bracket;

[0030] Figure 11 The installation schematic diagram of the driving motor and the water pump of the air conditioner indoor unit provided in Embodiment 3 of the present utility model on the motor bracket;

[0031] Figure 12 The structural schematic diagram of the water receiving tray of the air conditioner indoor unit provided in Embodiment 3 of the present utility model.

[0032] Explanation of the reference numerals:

[0033] 100 - housing; 200 - heat exchanger; 300 - electric control box; 400 - impeller assembly; 500 - water receiving tray; 600 - water pump;

[0034] 110 - inner cavity; 120 - air inlet; 130 - air outlet; 141 - front wall; 1411 - maintenance opening; 142 - upper wall; 143 - left wall; 144 - right wall;

[0035] 210 - first side wall; 220 - connecting wall; 230 - second side wall;

[0036] 310 - first fixing structure;

[0037] 410 - driving motor; 411 - output shaft; 420 - impeller; 430 - motor bracket; 431 - supporting part; 432 - second fixing structure; 433 - water pump connecting part;

[0038] 510 - water guiding area; 520 - drain port; 530 - sinking structure; 531 - water retaining strip; 541 - first side edge; 542 - second side edge; 543 - third side edge; 544 - fourth side edge; 550 - U - shaped fixing area; 560 - first rib; 570 - second rib. Detailed implementation manners

[0039] Currently, the interior of the air duct machine is divided into a heat exchanger chamber and a fan chamber. In order to increase the heat exchange area, the heat exchanger is usually placed obliquely in the heat exchanger chamber, which results in a larger width of the air duct machine and occupies a large amount of space in the ceiling interior along the front - rear direction. Moreover, the existing air duct machines mainly adopt the air outlet method of side air vents. In order to increase the air volume, the air vents are usually made thinner and longer, which results in a larger length of the air duct machine and occupies a large amount of space in the ceiling interior along the left - right direction.

[0040] Therefore, if the structure of an existing air duct machine is directly transferred to a kitchen air conditioner, it is obvious that the size is too large to meet the usage requirements of a narrow kitchen space, and there is a large room for improvement.

[0041] Based on this, the purpose of the present utility model is to provide an indoor air conditioner to solve the technical problem that it is difficult to meet the usage requirements in a kitchen space by directly using an air duct machine as a kitchen air conditioner.

[0042] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model is made 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.

[0043] Embodiment 1

[0044] Figure 1 is the external structure schematic diagram of the indoor air conditioner provided in this Embodiment 1. As Figure 1 shown, this embodiment provides an indoor air conditioner.

[0045] Figure 2 is the internal structure schematic diagram of the indoor air conditioner provided in this Embodiment 1. As Figure 2 shown, the indoor air conditioner includes a housing 100, a heat exchanger 200, an electric control box 300, and a wind wheel assembly 400. Among them, the housing 100 has an inner cavity 110, an air inlet 120, and an air outlet 130; the heat exchanger 200 is disposed in the inner cavity 110, and the heat exchanger 200 includes a first side wall 210, a connecting wall 220, and a second side wall 230 that are sequentially arranged in a U shape. The first side wall 210, the connecting wall 220, and the second side wall 230 enclose an installation cavity opposite to the front wall 141 of the housing 100. The wind wheel assembly 400 is disposed in the installation cavity, and the wind wheel assembly 400 includes a driving motor 410 and a wind wheel 420 driven by the driving motor 410 to rotate; the electric control box 300 is located above the driving motor 410, and the electric control box 300 is provided with a first fixing structure 310 for fixedly connecting with the housing 100.

[0046] When the indoor air conditioner needs to operate, the driving motor 410 of the wind wheel assembly 400 starts to drive the wind wheel 420 to rotate, so as to generate a negative pressure effect in the inner cavity 110 of the housing 100, so that external air can be inhaled 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.

[0047] By arranging the heat exchanger 200 with a U-shaped structure in the air conditioner indoor unit, an installation cavity capable of accommodating the impeller assembly 400 is formed inside, achieving effective utilization of the space of the inner cavity 110, ensuring the compactness of the structure of the air conditioner indoor unit, and being beneficial to reducing the length dimension in the left-right direction and the width dimension in the front-back direction of the air conditioner indoor unit; by placing the electronic control box 300 above the driving motor 410, not only can the lateral space of the inner cavity 110 be further saved, but also the length of the heat exchanger 200 does not need to be reduced, ensuring the heat exchange capacity of the heat exchanger 200. Among them, the setting of the first fixing structure 310 can realize the fixed connection between the electronic control box 300 and the housing 100 after the electronic control box 300 is installed above the driving motor 410, ensuring the installation stability of the electronic control box 300.

[0048] Specifically, the first fixing structure 310 includes a connecting ear extending outward from the box body of the electronic control box 300 and a first connection hole opened on the connecting ear. Correspondingly, a first fixing hole opposite to the first connection hole is provided on the front wall 141 of the housing 100. By using a first connecting member to connect the first fixing hole and the first connection hole, the fixing of the electronic control box 300 on the housing 100 can be realized. Among them, the first connecting member can be a threaded connecting member.

[0049] Please continue to refer to Figure 1 and Figure 2 , in this embodiment, the housing 100 may further include a rear wall opposite to the front wall 141, a left wall 143 and a right wall 144 that are opposite and spaced apart in the left-right direction, and an upper wall 142 and a lower wall that are opposite in the up-down direction. That is to say, the housing 100 is generally in a cuboid structure. This setting facilitates the transportation of the air conditioner indoor unit and its installation inside the suspended ceiling.

[0050] In this embodiment, 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-back 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 explanation, that is, L < 600 mm, B < 250 mm, H < 230 mm.

[0051] By setting the housing 100 within the above-mentioned dimension range, after removing the aluminum gusset plate, the air conditioner indoor unit can be directly inserted obliquely from bottom to top into the internal space of the suspended ceiling, realizing the installation without damaging the suspended ceiling and cutting the keel on the basis that the kitchen has been decorated with a suspended ceiling.

[0052] It should be noted that in this embodiment, the "left-right direction" can be represented by the arrow ab in Figure 1 , the "front-back direction" can be represented by the arrow cd in Figure 1 , and the "up-down direction" can be represented by the arrow ef in Figure 1 .

[0053] In this embodiment, the left wall 143, the rear wall, and the right wall 144 are of an integral structure, and the upper wall 142 and the front wall 141 are of an integral structure. With this arrangement, 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.

[0054] Please continue to refer to Figure 1 and Figure 2 , in this embodiment, air inlets 120 are provided on the left wall 143, the rear wall, and the right wall 144, and the air outlet 130 is provided on the front wall 141. The heat exchanger 200 is disposed close to the rear wall. Specifically, the first side wall 210 of the heat exchanger 200 is parallel to the left wall 143, the connecting wall 220 of the heat exchanger 200 is parallel to the rear wall, and the second side wall 230 of the heat exchanger 200 is parallel to the right wall 144.

[0055] The above arrangement enables, on the one hand, three-sided air intake during the operation of the air conditioner indoor unit, improving the air intake volume and increasing the air intake distribution area, so that air can enter at multiple positions in the circumferential direction of the housing 100. On the other hand, it also enables the air flow to exchange heat with the heat exchanger 200 immediately after entering the housing 100, with a relatively high heat exchange efficiency.

[0056] In this embodiment, the air intake and outlet paths of the air conditioner indoor unit are as shown by the hollow arrows in Figure 1 .

[0057] It should be noted that in other embodiments, the first side wall 210 can also be set to be parallel to the right wall 144, and the second side wall 230 can be set to be parallel to the left wall 143.

[0058] Please continue to refer to Figure 2 , in this embodiment, the first fixing structure 310 is fixedly connected to the front wall 141 of the housing 100, and a maintenance opening 1411 opposite to the electric control box 300 is further provided on the front wall 141.

[0059] The provision of the maintenance opening 1411 enables direct access to the electric control box 300 through the above-mentioned maintenance opening 1411 when maintenance of the electric control box 300 is required, without disassembling and assembling the housing 100, which is convenient for operation and improves the maintenance efficiency.

[0060] Figure 3 This is the front view structural sectional view of the air conditioner indoor unit provided in the first embodiment. Please continue to refer to Figure 2 , and in combination with Figure 3, in this embodiment, the air conditioner indoor unit may further include a water receiving tray 500 and a water pump 600. Specifically, the water receiving tray 500 is located below the heat exchanger 200, and the lower surface of the water receiving tray 500 forms the lower wall of the housing 100; the water pump 600 is disposed in the inner cavity 110, and the water inlet of the water pump 600 is communicated with the water receiving tray 500.

[0061] The above arrangement of the water receiving tray 500 can achieve centralized collection of the condensed water generated during the operation of the heat exchanger 200, avoiding damage to the ceiling caused by the condensed water dripping onto the ceiling. Moreover, the air conditioner indoor unit uses the lower surface of the water receiving tray 500 to form the lower wall of the housing 100, which can reduce the number of components of the air conditioner indoor unit and improve the assembly efficiency. By providing the water pump 600 communicated with the water receiving tray 500, active drainage of the water receiving tray 500 can be achieved, and the drainage efficiency is relatively high.

[0062] Please continue to refer to Figure 2 and Figure 3 , in this embodiment, the driving motor 410 is a double-shaft motor. Among them, the two output shafts 411 of the double-shaft motor are respectively arranged in opposite directions along the left-right direction. The number of the wind wheels 420 is two, and the two wind wheels 420 are respectively fixedly sleeved on the two output shafts 411 in a one-to-one correspondence, and the two wind wheels 420 are arranged at intervals along the left-right direction; the electric control box 300 is located between the two wind wheels 420.

[0063] This form of using one driving motor 410 to drive the two wind wheels 420 simultaneously can save the space of the inner cavity 110 and is beneficial to further reducing the size of the air conditioner indoor unit. By arranging the electric control box 300 between the two wind wheels 420, the effective utilization of the space between the two wind wheels 420 is realized, ensuring the structural compactness. Moreover, since the electric control box 300 is located above the driving motor 410, it can also reduce the blockage of the wind field, thereby reducing the air volume loss.

[0064] That is to say, in this embodiment, the electric control box 300 is generally located in the middle of the inner cavity 110 along the left-right direction, and the electric control box 300 is located in the air flow path from the air inlet 120 to the air outlet 130.

[0065] The above arrangement form of the electric control box 300 enables the air flow that has undergone heat exchange treatment by the heat exchanger 200 to first flow through the electric control box 300 and take away the heat generated during the operation of the electric control box 300 when the air conditioner indoor unit operates in the cooling mode, and then be discharged into the room through the air outlet 130. This process realizes effective heat dissipation of the electric control box 300 and avoids the influence of the electric control performance of the electric control box 300 due to excessive temperature.

[0066] Figure 4 This is a schematic installation diagram of the driving motor 410 of the air conditioner indoor unit provided in Embodiment 1 on the motor bracket 430. Please continue to refer to Figure 2and Figure 3 and in combination with Figure 4 In this embodiment, the air conditioner indoor unit may further include a motor bracket 430. Specifically, the motor bracket 430 is fixedly connected to the housing 100, and the drive motor 410 is installed on the motor bracket 430; the motor bracket 430 is provided with a support portion 431 for supporting the electronic control box 300.

[0067] The above setting of the motor bracket 430 provides an installation basis for the drive motor 410, so that the drive motor 410 can be stably located in the inner cavity 110 of the housing 100, ensuring the working stability of the drive motor 410. By providing the support portion 431 on the motor bracket 430, the support for the electronic control box 300 can be realized, while ensuring the stability of the electronic control box 300, the force on the housing 100 is optimized.

[0068] Please continue to refer to Figure 4 In this embodiment, the motor bracket 430 is provided with a second fixing structure 432, wherein the second fixing structure 432 is used for fixedly connecting with the electronic control box 300.

[0069] After the electronic control box 300 is assembled, the electronic control box 300 is supported by the support portion 431 of the motor bracket 430. At this time, the second fixing structure 432 can be used to fix the electronic control box 300 to the motor bracket 430. That is to say, the electronic control box 300 is not only fixedly connected to the housing 100 through the first fixing structure 310, but also fixedly connected to the motor bracket 430 through the second fixing structure 432.

[0070] This form of fixedly connecting the electronic control box 300 to the housing 100 and the motor bracket 430 at the same time increases the number of constraint points for the electronic control box 300. At the same time, it also increases the distribution area of the constraint points for the electronic control box 300, ensuring the constraint reliability for the electronic control box 300, reducing the shaking of the electronic control box 300, and thus ensuring the electronic control performance of the electronic control box 300.

[0071] Specifically, the second fixing structure 432 includes a second connection hole opened on the support portion 431. Correspondingly, the electronic control box 300 is provided with a second fixing hole opposite to the second connection hole. By using a second connecting member to connect the second fixing hole and the second connection hole, the fixing of the electronic control box 300 on the motor bracket 430 can be realized. Among them, the second connecting member can be a threaded connecting member.

[0072] Please continue to refer to Figure 2 and Figure 4 In this embodiment, the motor bracket 430 is fixedly connected to the front wall 141 of the housing 100.

[0073] By fixedly connecting the motor bracket 430 to the front wall 141 of the housing 100, not only can the installation stability of the motor bracket 430 be ensured, but also, there will be no installation interference with the upper electronic control box 300.

[0074] Please continue to refer to Figure 2 , in this embodiment, along the front-rear direction, the size of the first side wall 210 is smaller than that of the second side wall 230. The first side wall 210 forms an installation notch at its free end, where the installation notch faces the second side wall 230 in the left-right direction, and the water pump 600 is arranged in the above-mentioned installation notch.

[0075] By arranging the water pump 600 at the above position, the blockage of the air flow during the air intake process can be reduced, thereby weakening the influence on the wind field and ensuring the air intake volume and the air outlet volume.

[0076] Figure 5 The figure is a schematic structural view of the water receiving tray 500 of the air conditioner indoor unit provided in this embodiment. As Figure 5 shown, in this embodiment, the water receiving tray 500 is provided with a water guiding area 510, a drain port 520 and a sinking structure 530. The water guiding area 510 is located directly below the heat exchanger 200. The water receiving tray 500 has a first side edge 541 and a second side edge 542 arranged at intervals in the left-right direction, where the drain port 520 is arranged on the first side edge 541; from the second side edge 542 to the direction of the first side edge 541, the water guiding area 510 gradually slopes downward; the sinking structure 530 is located between the water guiding area 510 and the drain port 520, and the water inlet of the water pump 600 is communicated with the sinking structure 530.

[0077] The above settings enable the condensed water generated during the operation of the heat exchanger 200 to directly drip onto the water guiding area 510, and use the inclined setting of the water guiding area 510 to guide the condensed water to the drain port 520, specifically flowing from the second side edge 542 to the direction of the first side edge 541, so as to achieve the purpose of gravity drainage. When draining water by using the water pump 600, by arranging the sinking structure 530 communicated with the water inlet of the water pump 600 between the water guiding area 510 and the drain port 520, when the condensed water flows from the water guiding area 510 to the drain port 520, it will pass through the sinking structure 530, so as to use the sinking structure 530 to precipitate the impurities in the condensed water, prevent the impurities from being sucked into the water pump 600 and blocking or even damaging the water pump 600, which plays a certain protective role for the water pump 600.

[0078] It should be noted that in this embodiment, the drain port 520 arranged on the water receiving tray 500 can be used as a standby port, and the drainage by the water pump 600 is the main drainage method. Among them, the water pump 600 has an independent water outlet.

[0079] In this embodiment, the drain port 520 may be provided with a taper joint. This setting makes it difficult for the drain pipe to fall off when the drain pipe is connected to the drain port 520.

[0080] Please continue to refer to Figure 5 , in this embodiment, the sunken structure 530 is provided with a plurality of water retaining strips 531, among which, the plurality of water retaining strips 531 form a labyrinth flow channel from the water guide area 510 to the drain port 520. That is to say, during the process of the condensed water flowing from the water guide area 510 to the drain port 520, it will pass through the labyrinth flow channel formed by the plurality of water retaining strips 531.

[0081] By providing the above-mentioned water retaining strips 531 in the sunken structure 530, a labyrinth flow channel can be formed between the water guide area 510 and the drain port 520. By using the blocking effect of the water retaining strips 531 on the flowing process of the condensed water, the blocking of impurities therein can be realized, and the drain port 520 can be prevented from being blocked by the outflow of impurities.

[0082] Please continue to refer to Figure 5 , in this embodiment, the water receiving tray 500 is further provided with a U-shaped fixing area 550, a first retaining rib 560 and a second retaining rib 570. Among them, the U-shaped direction of the U-shaped fixing area 550 is the same as the U-shaped direction of the heat exchanger 200, and the heat exchanger 200 is clamped in the U-shaped fixing area 550; the first retaining rib 560 is arranged at the first end of the U-shaped fixing area 550, the second retaining rib 570 is arranged at the second end of the U-shaped fixing area 550, and the first retaining rib 560 separates the sunken structure 530 from the U-shaped fixing area 550.

[0083] By providing the above-mentioned U-shaped fixing area 550 in the water receiving tray 500, the fixing of the heat exchanger 200 can be realized. Moreover, by respectively arranging the first retaining rib 560 and the second retaining rib 570 at the two ends of the U-shaped fixing area 550, a limiting effect can also be exerted on the heat exchanger 200 to prevent the heat exchanger 200 from moving forward ( Figure 5 the direction indicated by the arrow c in

[0084] In addition, the first retaining rib 560 also serves to separate the sunken structure 530 from the U-shaped fixing area 550, so that the condensed water in the sunken structure 530 will not splash onto the U-shaped fixing area 550.

[0085] Embodiment Two

[0086] This embodiment provides another indoor unit of an air conditioner. The difference between this indoor unit of an air conditioner and the indoor unit of an air conditioner in the above-mentioned Embodiment One is as follows.

[0087] Figure 6 is a schematic diagram of the internal structure of the indoor unit of an air conditioner provided for this Embodiment Two. As Figure 6As shown, in this air conditioner indoor unit, the motor bracket 430 is fixedly connected to the upper wall 142 of the housing 100.

[0088] By setting the motor bracket 430 to be fixedly connected to the upper wall 142 of the housing 100, the installation stability of the motor bracket 430 can be ensured.

[0089] Figure 7 The following is a schematic diagram of the installation of the drive motor 410 of the air conditioner indoor unit provided in the second embodiment on the motor bracket 430. Please continue to refer to Figure 6 and in combination with Figure 7 In this embodiment, the motor bracket 430 is provided with a receiving groove penetrating in the front-rear direction. Among them, the bottom wall of the receiving groove forms a supporting portion 431, the opening of the receiving groove faces upward, and the electronic control box 300 is received between the receiving groove and the upper wall 142.

[0090] When the electronic control box 300 is assembled into the interior of the housing 100, the bottom wall of the receiving groove supports the electronic control box 300. At the same time, the side wall of the receiving groove also plays a role in limiting the electronic control box 300 in the left-right direction. This setting not only realizes the reliable support of the electronic control box 300, but also can prevent the electronic control box 300 from falling off from the left or right side of the motor bracket 430.

[0091] Embodiment Three

[0092] This embodiment provides another air conditioner indoor unit, and the differences between this air conditioner indoor unit and the air conditioner indoor unit in the first embodiment described above are as follows.

[0093] Figure 8 The following is a schematic diagram of the internal structure of the air conditioner indoor unit provided in the third embodiment; Figure 9 The following is a side-sectional view of the structure of the air conditioner indoor unit provided in the third embodiment; Figure 10 The following is a schematic diagram of the installation of the drive motor 410 of the air conditioner indoor unit provided in the third embodiment on the motor bracket 430; Figure 11 The following is a schematic diagram of the installation of the drive motor 410 and the water pump 600 of the air conditioner indoor unit provided in the third embodiment on the motor bracket 430. As Figures 8 to 11 shown, in this embodiment, the motor bracket 430 is further provided with a water pump connection portion 433. Among them, the water pump 600 is installed on the motor bracket 430 through the water pump connection portion 433. The water pump 600 is located below the motor bracket 430, and the water pump 600 and the drive motor 410 are arranged in the front-rear direction.

[0094] This form of installing the water pump 600 using the motor bracket 430 eliminates the need to separately set up a bracket for the water pump 600. While saving the number of components, it can further reduce the occupation of the space in the inner cavity 110. By arranging the water pump 600 in the above position, the space below the motor bracket 430 is effectively utilized, reducing the occupation of the space between the drive motor 410 and the heat exchanger 200 by the water pump 600. At the same time, it does not affect the air flow path from the heat exchanger 200 to the impeller 420, ensuring the smoothness of the air flow towards the impeller assembly 400.

[0095] In this embodiment, the motor bracket 430 is fixedly connected to the upper wall 142 of the housing 100.

[0096] Figure 12 It is a schematic structural view of the water receiving tray 500 of the air conditioner indoor unit provided in Embodiment Three. As Figure 12 shown, the water receiving tray 500 is provided with a water guiding area 510, a drain port 520, and a sinking structure 530. The water guiding area 510 is located directly below the heat exchanger 200. The water receiving tray 500 has a third side edge 543 and a fourth side edge 544 arranged at intervals in the front-rear direction. Among them, the third side edge 543 is close to the front wall 141 of the housing 100, and the fourth side edge 544 is close to the rear wall of the housing 100; Drain ports 520 are provided at both ends of the water receiving tray 500 in the left-right direction, and the drain ports 520 are close to the third side edge 543; In the direction from the fourth side edge 544 to the third side edge 543, the water guiding area 510 gradually slopes downward. The sinking structure 530 is located directly below the water pump 600, and the water inlet of the water pump 600 is communicated with the sinking structure 530.

[0097] The above settings enable the air conditioner indoor unit in Embodiment Three to directly drip the condensed water generated during the operation of the heat exchanger 200 onto the water guiding area 510 during operation. The inclined setting of the water guiding area 510 is used to guide the condensed water to the drain port 520, specifically flowing in the direction from the fourth side edge 544 to the third side edge 543 to achieve the purpose of gravity drainage. The setting of the sinking structure 530 enables impurities in the condensed water to enter the sinking structure 530 for precipitation during the flowing process, so that when draining water using the water pump 600, the impurities will not enter the water pump 600 to block or even damage the water pump 600, playing a certain protective role for the water pump 600.

[0098] In addition, by providing drain ports 520 at both ends of the third side edge 543, the condensed water in the water receiving tray 500 can flow out from both sides, ensuring the timeliness of drainage and avoiding the accumulation of condensed water in the water receiving tray 500.

[0099] 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 shall be subject to the scope defined by the claims.

[0100] 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 such 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 device 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 device. 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 device comprising the element.

[0101] 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.

[0102] 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), an electric control box (300) and a wind wheel assembly (400). Among them, the housing (100) has an inner cavity (110), an air inlet (120) and an air outlet (130); the heat exchanger (200) is arranged in the inner cavity (110), and the heat exchanger (200) includes a first side wall (210), a connecting wall (220) and a second side wall (230) 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 opposite to the front wall (141) of the housing (100). The wind wheel assembly (400) is arranged in the installation cavity, and the wind wheel assembly (400) includes a driving motor (410) and a wind wheel (420) driven by the driving motor (410) to rotate; the electric control box (300) is located above the driving motor (410), and the electric control box (300) is provided with a first fixing structure (310) for fixedly connecting with the housing (100).

2. The indoor air conditioner according to claim 1, characterized in that, The first fixing structure (310) is fixedly connected with the front wall (141) of the housing (100), and a maintenance opening (1411) opposite to the electric control box (300) is also formed on the front wall (141).

3. The air conditioner indoor unit according to claim 1, characterized in that, The indoor air conditioner further includes a water receiving tray (500) and a water pump (600). The water receiving tray (500) is located below the heat exchanger (200), and the lower surface of the water receiving tray (500) forms the lower wall of the housing (100); the water pump (600) is arranged in the inner cavity (110), and the water inlet of the water pump (600) is communicated with the water receiving tray (500).

4. The indoor air conditioner according to claim 3, characterized in that, The indoor air conditioner further includes a motor bracket (430). The motor bracket (430) is fixedly connected with the housing (100), and the driving motor (410) is installed on the motor bracket (430); the motor bracket (430) is provided with a supporting part (431) for supporting the electric control box (300); the motor bracket (430) is provided with a second fixing structure (432) for fixedly connecting with the electric control box (300).

5. The air conditioner indoor unit according to claim 4, characterized in that, The motor bracket (430) is fixedly connected with the upper wall (142) and / or the front wall (141) of the housing (100); and / or, the motor bracket (430) is provided with a receiving groove penetrating in the front-back direction. The bottom wall of the receiving groove forms the supporting part (431), the opening of the receiving groove faces upward, and the electric control box (300) is received between the receiving groove and the upper wall (142).

6. The air conditioner indoor unit according to claim 3, characterized in that, In the front-back direction, the size of the first side wall (210) is smaller than that of the second side wall (230). The first side wall (210) forms an installation notch at its free end. The installation notch is opposite to the second side wall (230) in the left-right direction, and the water pump (600) is arranged in the installation notch.

7. The air conditioner indoor unit according to claim 6, characterized in that, The water receiving tray (500) is provided with a water guiding area (510), a drain port (520) and a sunken structure (530). The water guiding area (510) is located directly below the heat exchanger (200). The water receiving tray (500) has a first side edge (541) and a second side edge (542) spaced apart in the left-right direction. Among them, the drain port (520) is arranged on the first side edge (541); in the direction from the second side edge (542) to the first side edge (541), the water guiding area (510) gradually slopes downward; the sunken structure (530) is located between the water guiding area (510) and the drain port (520), and the water inlet of the water pump (600) is communicated with the sunken structure (530).

8. The air conditioner indoor unit according to claim 7, characterized in that, The sunken structure (530) is provided with a plurality of water retaining bars (531), and the plurality of water retaining bars (531) form a labyrinth flow channel from the water guiding area (510) to the drain port (520); and / or, the water receiving tray (500) is further provided with a U-shaped fixing area (550), a first retaining rib (560) and a second retaining rib (570). The U-shaped direction of the U-shaped fixing area (550) is the same as the U-shaped direction of the heat exchanger (200), and the heat exchanger (200) is clamped in the U-shaped fixing area (550); the first retaining rib (560) is arranged at the first end of the U-shaped fixing area (550), the second retaining rib (570) is arranged at the second end of the U-shaped fixing area (550), and the first retaining rib (560) separates the sunken structure (530) from the U-shaped fixing area (550).

9. The air conditioner indoor unit according to claim 4, wherein The motor bracket (430) is further provided with a water pump connection part (433). The water pump (600) is installed on the motor bracket (430) through the water pump connection part (433). The water pump (600) is located below the motor bracket (430), and the water pump (600) and the drive motor (410) are arranged in the front-rear direction.

10. The air conditioner indoor unit according to claim 9, wherein, The water receiving tray (500) is provided with a water guiding area (510), a drain port (520) and a sunken structure (530). The water guiding area (510) is located directly below the heat exchanger (200). The water receiving tray (500) has a third side edge (543) and a fourth side edge (544) spaced apart in the front-rear direction. Among them, the third side edge (543) is close to the front wall (141) of the housing (100), and the fourth side edge (544) is close to the rear wall of the housing (100); drain ports (520) are arranged at both ends of the water receiving tray (500) in the left-right direction, and the drain ports (520) are close to the third side edge (543); in the direction from the fourth side edge (544) to the third side edge (543), the water guiding area (510) gradually slopes downward; the sunken structure (530) is located directly below the water pump (600), and the water inlet of the water pump (600) is communicated with the sunken structure (530).

11. The air conditioner indoor unit according to claim 1, wherein The driving motor (410) is a dual-axis motor. Two output shafts (411) of the dual-axis motor are arranged in opposite directions along the left-right direction. The number of the wind wheels (420) is two. The two wind wheels (420) are respectively fixedly sleeved on the two output shafts (411) in a one-to-one correspondence. The two wind wheels (420) are arranged at intervals along the left-right direction; the electric control box (300) is located between the two wind wheels (420).

Images