Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises a machine shell, a heat dissipation air inlet, a main air inlet and an air outlet. An indoor heat exchanger; an indoor fan assembly; an electric control box; the electric control box is arranged between the indoor fan assembly and the heat dissipation air inlet; a baffle is arranged in the electric control box and divides the interior of the electric control box into an electric device containing cavity and a wiring cavity, a wiring port is formed in the baffle, the electric device containing cavity and the wiring cavity are communicated through the wiring port, and a heat dissipation air inlet hole and a heat dissipation air outlet hole which are communicated are formed in the side wall, corresponding to the wiring cavity, of the electric control box. The heat dissipation air inlet holes and the heat dissipation air outlet holes are staggered with the wiring port. Therefore, the baffle is arranged in the electric control box, the wiring port is formed in the baffle, the heat dissipation air inlet hole and the heat dissipation air outlet hole are formed in the electric control box, and the heat dissipation air inlet hole and the heat dissipation air outlet hole are staggered from the wiring port, so that the fireproof design of the electric control box is realized while heat dissipation is performed on the electric parts in the electric control box.

Description

Technical Field

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

[0002] In the related art, an air conditioner is provided with an electric control box, in which a control panel and some control-type electric components are arranged. The control panel and some control-type electric components are mainly used to control the operation of components such as heat exchangers, compressors, and electronic valves in the air conditioner.

[0003] Among them, an electric control box is arranged in the indoor unit. Considering that electrical components will generate heat when working, in order to avoid heat accumulation in the electric control box, avoid component failure and reduce the service life of components, heat dissipation holes are often provided on the electric control box to ensure the heat dissipation of the electric control box.

[0004] However, when the electric control box is working, the control board may fail and ignite, causing flames in the electric control box. The flames may escape from the electric control box through the heat dissipation holes and even burn other parts of the indoor unit, causing the indoor unit to malfunction. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air conditioner indoor unit, the electric control box of which can not only dissipate heat but also prevent fire.

[0006] In order to achieve the above-mentioned purpose, according to an embodiment of the utility model, an indoor unit of an air conditioner is proposed, comprising: a casing, the casing is provided with a heat dissipation air inlet, a main air inlet and an air outlet, the main air inlet and the air outlet are arranged opposite to each other in the up and down directions, and the heat dissipation air inlet is arranged on one side of the casing in the left and right directions; an indoor heat exchanger, the indoor heat exchanger is arranged in the casing; an indoor fan assembly, the indoor fan assembly is arranged in the casing, the indoor fan assembly drives air from the outside to enter the casing through the main air inlet and the heat dissipation air inlet, and the air flows to the indoor heat exchanger through the indoor fan assembly, and when it is in contact with the indoor heat exchanger The heat exchanger forms a heat exchange airflow and then flows out from the air outlet; an electric control box, which is arranged in the casing; in the left and right directions of the casing, the electric control box is arranged between the indoor fan assembly and the heat dissipation air inlet; wherein a baffle is arranged in the electric control box, and the baffle divides the interior of the electric control box into an electric component accommodating chamber and a wiring chamber, a wiring opening is provided on the baffle, and the electric component accommodating chamber and the wiring chamber are connected through the wiring opening, and the side wall of the electric control box corresponding to the wiring chamber part is provided with a connected heat dissipation air inlet hole and a heat dissipation air outlet hole, and the heat dissipation air inlet hole and the heat dissipation air outlet hole are staggered with the wiring opening.

[0007] According to the embodiment of the utility model, the indoor unit of the air conditioner achieves heat dissipation for the electric control box through the heat dissipation air inlet holes and the heat dissipation air outlet holes. At the same time, the heat dissipation air inlet holes and the heat dissipation air outlet holes are staggered with the wiring openings. When there is a flame inside the electric control box, the flame can be sealed inside the electric control box to prevent the flame from escaping, thereby realizing a fireproof design for the electric control box and improving the safety of the electric control box and even the indoor unit of the air conditioner.

[0008] According to some embodiments of the utility model, the heat dissipation air inlet hole and the heat dissipation air outlet hole are respectively arranged on the opposite side walls of the electrical control box corresponding to the wiring cavity part in the left and right directions, and the wiring opening is respectively spaced apart from the heat dissipation air inlet hole and the heat dissipation air outlet hole in the upper and lower directions.

[0009] According to some embodiments of the present utility model, the heat dissipation air inlet hole is correspondingly connected to the heat dissipation air inlet port, and the heat dissipation air outlet hole is correspondingly connected to the indoor fan assembly.

[0010] According to some embodiments of the utility model, a wiring groove is provided in the wiring cavity, the wiring groove is correspondingly arranged between the heat dissipation air inlet hole and the heat dissipation air outlet hole, and the wiring groove is communicated with the wiring port.

[0011] According to some embodiments of the utility model, an air inlet louver is provided on one side of the electric control box in the left and right directions corresponding to the heat dissipation air inlet port, and the air inlet louver is protruded relative to the electric control box and is open on one side in the up and down directions to form the heat dissipation air inlet port.

[0012] According to some embodiments of the utility model, an air outlet louver is provided on one side of the electric control box in the left and right directions corresponding to the indoor fan assembly. The air outlet louver is protruded relative to the electric control box and is open on one side in the up and down directions to form the heat dissipation air outlet.

[0013] According to some embodiments of the utility model, the heat dissipation air inlet hole is arranged on a side of the air inlet louver in the up and down direction away from the wiring opening, and the heat dissipation air outlet hole is arranged on a side of the air outlet louver in the up and down direction away from the wiring opening.

[0014] According to some embodiments of the utility model, there are multiple air outlet louvers, and the multiple air outlet louvers are arranged at intervals in the up and down directions; there are multiple air inlet louvers, and the multiple air inlet louvers are arranged at intervals in the up and down directions.

[0015] According to some embodiments of the present invention, the baffle and the electric control box are integrally formed structural parts.

[0016] The indoor unit of the air conditioner proposed in the embodiment of the utility model comprises: a casing, the casing is provided with a heat dissipation air inlet, a main air inlet and an air outlet, the main air inlet and the air outlet are arranged opposite to each other in the up-down direction, and the heat dissipation air inlet is arranged on one side of the casing in the left-right direction; an indoor heat exchanger, the indoor heat exchanger is arranged in the casing; an indoor fan assembly, the indoor fan assembly is arranged in the casing, the indoor fan assembly drives air from the outside to enter the casing through the main air inlet and the heat dissipation air inlet, and the air flows to the indoor heat exchanger through the indoor fan assembly , after exchanging heat with the indoor heat exchanger to form a heat exchange airflow, it flows out from the air outlet; an electric control box, the electric control box is arranged in the casing; in the left and right directions of the casing, the electric control box is arranged between the indoor fan assembly and the heat dissipation air inlet; wherein, a baffle is arranged in the electric control box, the baffle divides the interior of the electric control box into an electrical component accommodating chamber and a wiring chamber, a wiring opening is opened on the baffle, the electrical component accommodating chamber and the wiring chamber are connected through the wiring opening, and the side wall of the electric control box corresponding to the wiring chamber is provided with a connected heat dissipation air inlet hole and a heat dissipation air outlet hole.

[0017] The indoor unit of the air conditioner according to the embodiment of the utility model can form a high-speed airflow with a large air volume in the electric control box. During the flow of the airflow in the electric control box, the heat of the electrical components can be taken away to ensure the stable operation of the control panel and the electrical components.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0021] Figure 2 It is a partial schematic diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0022] Figure 3 It is a partial schematic diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0023] Figure 4 It is a partial schematic diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0024] Figure 5 is a front view of an electric control box according to an embodiment of the utility model;

[0025] Figure 6 is a schematic diagram of an electric control box according to an embodiment of the utility model;

[0026] Figure 7 yes Figure 6 Schematic diagram of area A in the middle;

[0027] Figure 8 is a schematic diagram of an electric control box according to an embodiment of the utility model from another perspective;

[0028] Fig. 9 yes Figure 8 Schematic diagram of area B in the middle;

[0029] Fig.10 is a cross-sectional view of an electric control box according to an embodiment of the utility model;

[0030] Fig.11 It is a partial schematic diagram of an electric control box according to an embodiment of the utility model;

[0031] Fig.12 It is a partial schematic diagram of an electric control box according to an embodiment of the utility model;

[0032] Fig.13 It is a partial schematic diagram of the electric control box from another perspective according to an embodiment of the utility model.

[0033] Reference numerals:

[0034] 100. Indoor unit of air conditioner;

[0035] 10. Casing; 11. Cooling air inlet; 12. Air outlet; 13. Main air inlet;

[0036] 20. Indoor heat exchanger;

[0037] 30. Indoor fan assembly;

[0038] 40. Electric control box; 401. Electrical component accommodating chamber; 402. Wiring chamber;

[0039] 41. baffle; 411. wiring opening; 412. wiring trough;

[0040] 42. Heat dissipation air inlet hole; 43. Heat dissipation air outlet hole;

[0041] 44. Air inlet louver; 45. Air outlet louver. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0045] In the description of the present invention, "multiple" means two or more, and "several" means one or more.

[0046] Please refer to the following Figure 1-Figure 13 An air conditioner indoor unit 100 according to an embodiment of the present invention is described.

[0047] Combination Figure 1-Figure 4 As shown, the indoor unit 100 of the air conditioner according to the embodiment of the present utility model may include: a casing 10 , an indoor heat exchanger 20 , an indoor fan assembly 30 and an electric control box 40 .

[0048] Among them, the indoor heat exchanger 20, the indoor fan assembly 30 and the electrical control box 40 are all arranged in the casing 10, so that the casing 10 can cover and protect the indoor heat exchanger 20, the indoor fan assembly 30 and the electrical control box 40, and can prevent the erosion of foreign objects or the impact of external forces from causing damage to the structures of various components, thereby improving the structural reliability of the air conditioner indoor unit 100 and ensuring that the air conditioner indoor unit 100 can operate normally.

[0049] Furthermore, the casing 10 is arranged in an indoor environment, and the casing 10 is provided with a main air inlet 13 and an air outlet 12. The main air inlet 13 and the air outlet 12 are arranged relatively to each other in the up and down directions, so that indoor air can enter the casing 10 through the main air inlet 13, which is convenient for the indoor air to exchange heat with the indoor heat exchanger 20. The indoor fan assembly 30 is located on one side of the indoor heat exchanger 20. The indoor fan assembly 30 drives the indoor air to enter the casing 10 from the main air inlet 13, and after the indoor air exchanges heat with the indoor heat exchanger 20 to form a heat exchange airflow, it is driven by the indoor fan assembly 30 to flow out of the casing 10 from the air outlet 12.

[0050] In this way, the air conditioner indoor unit 100 can selectively control the indoor air to enter the casing 10 through the main air inlet 13, and the indoor air can form a heat exchange airflow after heat exchange with the indoor heat exchanger 20, and then be driven by the indoor fan assembly 30 to flow out of the casing 10 from the air outlet 12, thereby realizing indoor cooling or heating.

[0051] Combination Figure 2-Figure 4 As shown, the casing 10 is also provided with a heat dissipation air inlet 11, which is arranged on one side of the casing 10 in the left-right direction. In the left-right direction of the casing 10, the electric control box 40 is arranged between the indoor fan assembly 30 and the heat dissipation air inlet 11.

[0052] Specifically, a control panel and electrical components are disposed in the electric control box 40 for controlling the operation of each functional module of the air conditioner indoor unit 100 .

[0053] It is understandable that electrical components generate heat during operation. If the heat is not dissipated from the electrical control box 40 in a timely manner, the heat accumulated in the electrical control box 40 will be too high, which will shorten the service life of the electrical components and cause thermal failure of the electrical components in the electrical control box 40. In more serious cases, the electrical components will burn out, causing damage to the air conditioner indoor unit 100.

[0054] By arranging the electric control box 40 between the indoor fan assembly 30 and the heat dissipation air inlet 11, when the indoor fan assembly 30 draws in indoor air through the heat dissipation air inlet 11, wind can flow through the electric control box 40, thereby taking away the heat of the electric control box 40, reducing the temperature inside the electric control box 40, and preventing the electrical components inside the electric control box 40 from accumulating too much heat and failing or even burning.

[0055] Furthermore, the electrical components are arranged on the control board, and the control board and the electrical components are electrically connected to the external functional modules through wiring harnesses, that is, the electrical control box 40 needs to accommodate not only the control board and the electrical components, but also the wiring harnesses electrically connected to the control board and the electrical components.

[0056] Combination Figure 5 as well as Figure 10-13As shown, a baffle 41 is provided in the electric control box 40, and the baffle 41 divides the inside of the electric control box 40 into an electric device accommodating chamber 401 and a wiring chamber 402. A wiring opening 411 is provided on the baffle 41, and the electric device accommodating chamber 401 and the wiring chamber 402 are connected through the wiring opening 411. In this way, the control board and the electric device can be arranged in the electric device accommodating chamber 401, and the wiring harness can be arranged in the wiring chamber 402, and extend into the electric device accommodating chamber 401 through the wiring opening 411, and be electrically connected to the control board and the electric device.

[0057] In this way, under the premise of ensuring that the electric control box 40 can work normally, the arrangement of the control board, electrical components and wiring harness in the electric control box 40 can be more uniform and reasonable through the setting of the baffle 41, thereby improving the working performance of the electric control box 40 and facilitating the heat dissipation of the electric control box 40.

[0058] Combination Figure 3-Figure 5 as well as Figure 11-13 As shown, the side wall of the electric control box 40 corresponding to the wiring cavity 402 is provided with a communicating heat dissipation air inlet hole 42 and heat dissipation air outlet hole 43 , and the heat dissipation air inlet hole 42 and the heat dissipation air outlet hole 43 are staggered with the wiring opening 411 .

[0059] It is understandable that the electrical control box 40 is arranged between the indoor fan assembly 30 and the heat dissipation air inlet 11 so that the wind flows through the surface of the electrical control box 40. Although this can take away the heat of the electrical control box 40, the amount of heat taken away is relatively limited. Heat may still accumulate inside the electrical control box 40, causing the electrical components inside the electrical control box 40 to fail or even burn out.

[0060] By providing interconnected heat dissipation air inlet holes 42 and heat dissipation air outlet holes 43 on the side walls of the electrical control box 40 corresponding to the wiring cavity 402, it can be ensured that the air inside the electrical control box 40 and the air outside the electrical control box 40 can circulate with each other, so that the heat inside the electrical control box 40 can be dissipated to the outside of the electrical control box 40 along with the flow of air.

[0061] In this way, the heat inside the electric control box 40 can be reduced more effectively, the temperature inside the electric control box 40 can be lowered, and the heat dissipation effect of the electric control box 40 can be improved.

[0062] It should be noted that when the electric control box 40 is working, the control board may fail and ignite, resulting in flames in the electric control box 40. The flames in the electrical component accommodating cavity 401 may escape into the wiring cavity 402 through the wiring opening 411, and may further escape to the outside of the electric control box 40 through the heat dissipation air outlet 43 and the heat dissipation air inlet 42, and even burn other components of the air conditioner indoor unit 100, causing the air conditioner indoor unit 100 to fail to work normally.

[0063] By staggering the heat dissipation air inlet 42 and the heat dissipation air outlet 43 with the wiring opening 411, when a flame appears in the electric control box 40 and spreads into the wiring cavity 402 through the wiring opening 411, the flame can be prevented from directly spreading to the heat dissipation air inlet 42 and the heat dissipation air outlet 43, or being blown to the heat dissipation air inlet 42 and the heat dissipation air outlet 43 by the airflow, thereby preventing the flame from spreading out through the heat dissipation air inlet 42 and the heat dissipation air outlet 43.

[0064] In this way, while dissipating the heat of the electrical components in the electric control box 40, when there is a flame inside the electric control box 40, the flame can be sealed inside the electric control box 40 to prevent the flame from escaping, thereby realizing a fireproof design for the electric control box 40 and improving the safety of the electric control box 40 and even the air conditioner indoor unit 100.

[0065] It should be noted that, through the setting of the baffle 41, the flame in the electrical component accommodating cavity 401 can only escape into the wiring cavity 402 through the wiring opening 411, that is, the portion of the baffle 41 where the wiring opening 411 is not set can also play a certain fire prevention role, and can seal the flame inside the electrical control box 40 to prevent the flame from escaping, thereby improving the fire prevention performance of the electrical control box 40.

[0066] Therefore, by setting a baffle 41 in the electric control box 40, setting a wiring opening 411 on the baffle 41, setting a heat dissipation air inlet hole 42 and a heat dissipation air outlet hole 43 in the electric control box 40, and making the heat dissipation air inlet hole 42 and the heat dissipation air outlet hole 43 staggered with the wiring opening 411, the fire prevention design of the electric control box 40 can be achieved while the heat is dissipated for the electrical components in the electric control box 40.

[0067] Combination Figure 11-13 As shown, the heat dissipation air inlet 42 and the heat dissipation air outlet 43 are respectively arranged on the opposite side walls of the electric control box 40 corresponding to the wiring cavity 402 in the left and right directions, and the wiring opening 411 is respectively spaced apart from the heat dissipation air inlet 42 and the heat dissipation air outlet 43 in the upper and lower directions.

[0068] Specifically, the heat dissipation air inlet 11 and the indoor fan assembly 30 are arranged at intervals in the left-right direction, and the electric control box 40 is arranged between the indoor fan assembly 30 and the heat dissipation air inlet 11. By respectively arranging the heat dissipation air inlet 42 and the heat dissipation air outlet 43 on the opposite side walls in the left-right direction of the wiring cavity 402 of the electric control box 40, the distance between the heat dissipation air inlet 42 and the heat dissipation air inlet 11 can be shortened, and the distance between the heat dissipation air outlet 43 and the indoor fan assembly 30 can be shortened.

[0069] When the indoor fan assembly 30 is working, the air flow can enter the interior of the electrical control box 40 from the left side of the electrical control box 40, and then flow out from the right side of the electrical control box 40, which can not only improve the smoothness of the wind flow, but also allow more wind to flow through the wiring cavity 402, taking away more heat from the electrical control box 40, thereby improving the heat dissipation effect of the electrical control box 40.

[0070] Furthermore, the wiring opening 411 is arranged at intervals with the heat dissipation air inlet 42 and the heat dissipation air outlet 43 in the vertical direction. Specifically, the wiring opening 411 is arranged above the heat dissipation air inlet 42 and the heat dissipation air outlet 43. In this way, the position of the wiring opening 411 can be further optimized, and the wiring opening 411 and the heat dissipation air inlet 42 and the heat dissipation air outlet 43 are staggered to prevent the airflow from bringing out the flames, thereby improving the fireproof performance of the electric control box 40.

[0071] Combination Figure 2-Figure 4 As shown, the heat dissipation air inlet hole 42 is connected to the heat dissipation air inlet port 11 correspondingly, and the heat dissipation air outlet hole 43 is connected to the indoor fan assembly 30 correspondingly.

[0072] It is understandable that the heat dissipation effect of the electric control box 40 is related to the flow rate of air entering the electric control box 40 .

[0073] By making the heat dissipation air inlet 42 connected with the heat dissipation air inlet 11 correspondingly, and the heat dissipation air outlet 43 connected with the indoor fan assembly 30 correspondingly, when the indoor fan assembly 30 is working, a negative pressure can be formed near the electrical control box 40, so that a large amount of indoor ambient air can be sucked into the wiring cavity 402 through the heat dissipation air inlet 11 and the heat dissipation air inlet 42 in turn, and quickly flow out of the wiring cavity 402 through the heat dissipation air outlet 43.

[0074] In this way, a high-speed airflow with a large air volume can be formed in the wiring cavity 402. During the flow of the airflow in the wiring cavity 402, the heat inside the electrical control box 40 can be taken away to avoid heat accumulation inside the electrical control box 40, thereby ensuring the stable operation of the control board and electrical components.

[0075] Combination Figure 11-13 As shown, a wiring groove 412 is provided in the wiring cavity 402 , and the wiring groove 412 is correspondingly provided between the heat dissipation air inlet hole 42 and the heat dissipation air outlet hole 43 , and the wiring groove 412 is connected to the wiring port 411 .

[0076] Specifically, by providing a wiring groove 412 in the wiring cavity 402, the wiring groove 412 is connected to the wiring opening 411, so that the wiring harness can be routed along the wiring groove 412, and then extend into the electrical device accommodating cavity 401 through the wiring opening 411, and electrically connected to the control board and the electrical device. The wiring groove 412 can limit the direction of the wiring harness, so that the wiring of the wiring harness in the wiring harness cavity can be more reasonable and orderly, and the disorder of the wiring harness can be avoided.

[0077] Furthermore, the wiring groove 412 is correspondingly arranged between the heat dissipation air inlet hole 42 and the heat dissipation air outlet hole 43, so that the flames can be prevented from spreading through the wire harness in the wiring groove 412, and the fireproof performance of the electric control box 40 can be further improved.

[0078] Combination Figure 3 , Figure 6 , Figure 7 as well as Figure 11-13 As shown, an air inlet louver 44 is provided on one side of the electric control box 40 corresponding to the heat dissipation air inlet 11 in the left and right directions. The air inlet louver 44 is protruded relative to the electric control box 40 and is open on one side in the up and down directions to form a heat dissipation air inlet hole 42.

[0079] Specifically, when a flame appears in the electric control box 40 and spreads into the wiring cavity 402 through the wiring port 411, the flame may spread in the up-down direction if it is too large, and spread in the left-right direction under the action of the airflow, that is, a small part of the flame may still spread to the heat dissipation air inlet 42. Therefore, the heat dissipation air inlet 42 needs to be optimized.

[0080] By providing an air inlet louver 44 on one side of the electric control box 40 corresponding to the heat dissipation air inlet 11 in the left and right directions, and by protruding the air inlet louver 44 relative to the electric control box 40 , and by opening the air outlet louver 45 on one side relative to the electric control box 40 in the up and down directions, a heat dissipation air inlet hole 42 can be formed between the air inlet louver 44 and the side wall of the electric control box 40 .

[0081] In this way, under the premise of ensuring that the airflow can normally enter the electric control box 40 and avoid affecting the heat dissipation performance of the electric control box 40, even if a small part of the flames escape to the heat dissipation air inlet hole 42, the air inlet louver 44 can block the flames. Thus, the flames can be more reliably sealed inside the electric control box 40 to prevent the flames from escaping, and the fireproof performance of the electric control box 40 can be improved.

[0082] Furthermore, the heat dissipation air inlet hole 42 is arranged on the side of the air inlet louver 44 away from the wiring opening 411 in the up and down directions. This can increase the distance between the heat dissipation air inlet hole 42 and the wiring opening 411, thereby more reliably preventing the flames at the wiring opening 411 from spreading to the heat dissipation air inlet hole 42, thereby improving the fire prevention performance of the electrical control box 40.

[0083] Combination Figure 4 , Figure 8 , Fig. 9 as well as Figure 11-13 As shown, an air outlet louver 45 is provided on one side of the electric control box 40 corresponding to the indoor fan assembly 30 in the left and right directions. The air outlet louver 45 is protruded relative to the electric control box 40 and is open on one side in the up and down directions to form a heat dissipation air outlet hole 43.

[0084] Specifically, when a flame appears in the electric control box 40 and spreads into the wiring cavity 402 through the wiring port 411, the flame may spread in the up-down direction if it is too large, and spread in the left-right direction under the action of the airflow, that is, a small part of the flame may still spread to the heat dissipation outlet 43. Therefore, the heat dissipation outlet 43 needs to be optimized.

[0085] By providing an air outlet louver 45 on one side of the electric control box 40 corresponding to the air outlet 12 in the left and right directions, the air outlet louver 45 is protruded relative to the electric control box 40, and the air outlet louver 45 is open on one side of the electric control box 40 in the up and down directions, a heat dissipation air outlet hole 43 can be formed between the air outlet louver 45 and the side wall of the electric control box 40.

[0086] In this way, under the premise of ensuring that the airflow can flow out of the electric control box 40 normally and avoiding affecting the heat dissipation performance of the electric control box 40, even if a small part of the flames escape to the heat dissipation air outlet 43, the air outlet louvers 45 can block the flames. Thus, the flames can be more reliably sealed inside the electric control box 40 to prevent the flames from escaping, and the fireproof performance of the electric control box 40 can be improved.

[0087] Furthermore, the heat dissipation air outlet 43 is arranged on the side of the air outlet louver 45 away from the wiring opening 411 in the up and down directions. This can increase the distance between the heat dissipation air outlet 43 and the wiring opening 411, thereby more reliably preventing the flames at the wiring opening 411 from spreading to the heat dissipation air outlet 43, and improving the fire prevention performance of the electrical control box 40.

[0088] Combination Figure 7 As shown, there are a plurality of air inlet louvers 44, and the plurality of air inlet louvers 44 are spaced apart in the up-down direction.

[0089] Specifically, each air inlet louver 44 can be connected to the electric control box 40 to form a heat dissipation air inlet hole 42. By providing a plurality of air inlet louvers 44, and arranging the plurality of air inlet louvers 44 at intervals in the vertical direction, a plurality of heat dissipation air inlet holes 42 at intervals in the vertical direction can be formed on the electric control box 40.

[0090] Different from setting a large-sized air inlet louver to form a heat dissipation air inlet hole, in the present application, the airflow can enter the electric control box 40 through multiple heat dissipation air inlet holes 42, thereby increasing the air volume entering the electric control box 40 and further improving the heat dissipation effect.

[0091] In this way, the structural design of the electric control box 40 can be optimized to achieve a balance between the heat dissipation performance and the fire prevention performance of the electric control box 40 .

[0092] Combination Fig. 9 As shown, there are a plurality of air outlet louvers 45, and the plurality of air outlet louvers 45 are arranged at intervals in the up-down direction.

[0093] Specifically, each air outlet louver 45 can be connected to the electric control box 40 to form a heat dissipation air outlet hole 43. By providing a plurality of air outlet louvers 45, and arranging the plurality of air outlet louvers 45 at intervals in the vertical direction, a plurality of heat dissipation air outlet holes 43 at intervals in the vertical direction can be formed on the electric control box 40.

[0094] Different from setting a large-sized air outlet louver to form a heat dissipation outlet hole, in the present application, the air flow can enter the electric control box 40 through multiple heat dissipation outlet holes 43, thereby increasing the air volume entering the electric control box 40 and further improving the heat dissipation effect.

[0095] In this way, the structural design of the electric control box 40 can be optimized to achieve a balance between the heat dissipation performance and the fire prevention performance of the electric control box 40 .

[0096] The baffle 41 and the electric control box 40 are integrally formed structural parts.

[0097] On the one hand, this can simplify the production process of the baffle 41 and the electric control box 40, improve the production efficiency of the baffle 41 and the electric control box 40, and improve the assembly efficiency of the air conditioner indoor unit 100.

[0098] On the other hand, this can improve the connection strength and tightness between the baffle 41 and the electric control box 40, avoid the assembly gap between the baffle 41 and the electric control box 40, and thus prevent the flames in the electrical component accommodating cavity 401 from escaping from the assembly gap between the baffle 41 and the electric control box 40. That is, it can be ensured that the flames in the electrical component accommodating cavity 401 can only escape from the wiring opening 411, thereby ensuring the fireproof performance of the electric control box 40.

[0099] Combination Figure 1-Figure 4 As shown, the indoor unit 100 of the air conditioner according to the embodiment of the present utility model may include: a casing 10 , an indoor heat exchanger 20 , an indoor fan assembly 30 and an electric control box 40 .

[0100] Among them, the indoor heat exchanger 20, the indoor fan assembly 30 and the electrical control box 40 are all arranged in the casing 10, so that the casing 10 can cover and protect the indoor heat exchanger 20, the indoor fan assembly 30 and the electrical control box 40, and can prevent the erosion of foreign objects or the impact of external forces from causing damage to the structures of various components, thereby improving the structural reliability of the air conditioner indoor unit 100 and ensuring that the air conditioner indoor unit 100 can operate normally.

[0101] Furthermore, the casing 10 is arranged in an indoor environment, and the casing 10 is provided with a main air inlet 13 and an air outlet 12. The main air inlet 13 and the air outlet 12 are arranged relatively to each other in the up and down directions, so that indoor air can enter the casing 10 through the main air inlet 13, which is convenient for the indoor air to exchange heat with the indoor heat exchanger 20. The indoor fan assembly 30 is located on one side of the indoor heat exchanger 20. The indoor fan assembly 30 drives the indoor air to enter the casing 10 from the main air inlet 13, and after the indoor air exchanges heat with the indoor heat exchanger 20 to form a heat exchange airflow, it is driven by the indoor fan assembly 30 to flow out of the casing 10 from the air outlet 12.

[0102] In this way, the air conditioner indoor unit 100 can selectively control the indoor air to enter the casing 10 through the main air inlet 13, and the indoor air can form a heat exchange airflow after heat exchange with the indoor heat exchanger 20, and then be driven by the indoor fan assembly 30 to flow out of the casing 10 from the air outlet 12, thereby realizing indoor cooling or heating.

[0103] Combination Figure 2-Figure 4 As shown, the casing 10 is also provided with a heat dissipation air inlet 11, which is arranged on one side of the casing 10 in the left-right direction. In the left-right direction of the casing 10, the electric control box 40 is arranged between the indoor fan assembly 30 and the heat dissipation air inlet 11.

[0104] Specifically, a control panel and electrical components are disposed in the electric control box 40 for controlling the operation of each functional module of the air conditioner indoor unit 100 .

[0105] It is understandable that electrical components generate heat during operation. If the heat is not dissipated from the electrical control box 40 in a timely manner, the heat accumulated in the electrical control box 40 will be too high, which will shorten the service life of the electrical components and cause thermal failure of the electrical components in the electrical control box 40. In more serious cases, the electrical components will burn out, causing damage to the air conditioner indoor unit 100.

[0106] By arranging the electric control box 40 between the indoor fan assembly 30 and the heat dissipation air inlet 11, when the indoor fan assembly 30 draws in indoor air through the heat dissipation air inlet 11, wind can flow through the electric control box 40, thereby taking away the heat of the electric control box 40, reducing the temperature inside the electric control box 40, and preventing the electrical components inside the electric control box 40 from accumulating too much heat and failing or even burning.

[0107] Furthermore, the electrical components are arranged on the control board, and the control board and the electrical components are electrically connected to the external functional modules through wiring harnesses, that is, the electrical control box 40 needs to accommodate not only the control board and the electrical components, but also the wiring harnesses electrically connected to the control board and the electrical components.

[0108] Combination Figure 5 as well as Figure 10-13As shown, a baffle 41 is provided in the electric control box 40, and the baffle 41 divides the inside of the electric control box 40 into an electric device accommodating chamber 401 and a wiring chamber 402. A wiring opening 411 is provided on the baffle 41, and the electric device accommodating chamber 401 and the wiring chamber 402 are connected through the wiring opening 411. In this way, the control board and the electric device can be arranged in the electric device accommodating chamber 401, and the wiring harness can be arranged in the wiring chamber 402, and extend into the electric device accommodating chamber 401 through the wiring opening 411, and be electrically connected to the control board and the electric device.

[0109] In this way, under the premise of ensuring that the electric control box 40 can work normally, the arrangement of the control board, electrical components and wiring harness in the electric control box 40 can be more uniform and reasonable through the setting of the baffle 41, thereby improving the working performance of the electric control box 40 and facilitating the heat dissipation of the electric control box 40.

[0110] Combination Figure 3-Figure 5 as well as Figure 11-13 As shown, the side wall of the electric control box 40 corresponding to the wiring cavity 402 is provided with a communicating heat dissipation air inlet hole 42 and heat dissipation air outlet hole 43 , and the heat dissipation air inlet hole 42 and the heat dissipation air outlet hole 43 are staggered with the wiring opening 411 .

[0111] It is understandable that the electrical control box 40 is arranged between the indoor fan assembly 30 and the heat dissipation air inlet 11 so that the wind flows through the surface of the electrical control box 40. Although this can take away the heat of the electrical control box 40, the amount of heat taken away is relatively limited. Heat may still accumulate inside the electrical control box 40, causing the electrical components inside the electrical control box 40 to fail or even burn out.

[0112] By providing interconnected heat dissipation air inlet holes 42 and heat dissipation air outlet holes 43 on the side walls of the electrical control box 40 corresponding to the wiring cavity 402, it can be ensured that the air inside the electrical control box 40 and the air outside the electrical control box 40 can circulate with each other, so that the heat inside the electrical control box 40 can be dissipated to the outside of the electrical control box 40 along with the flow of air.

[0113] In this way, the heat inside the electric control box 40 can be reduced more effectively, the temperature inside the electric control box 40 can be lowered, and the heat dissipation effect of the electric control box 40 can be improved.

[0114] Other structures and operations of the air conditioner indoor unit 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0115] The air conditioner indoor unit 100 of the present invention can cooperate with the air conditioner outdoor unit to perform a refrigeration cycle and a heating cycle by using a compressor, a condenser, an expansion valve and an evaporator.

[0116] Specifically, both the refrigeration cycle and the heating cycle include a series of processes involving compression, condensation, expansion, and evaporation, and supplying refrigerant to the air that has been conditioned and heat-exchanged.

[0117] The compressor compresses the refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0118] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and absorbs heat from the surrounding environment through the evaporation process. The refrigerant gas in a low-temperature and low-pressure state returns to the compressor.

[0119] It should be noted that when a refrigeration cycle is performed, the outdoor heat exchanger of the air conditioner outdoor unit can be used as a condenser, and the indoor heat exchanger 20 of the air conditioner indoor unit 100 can be used as an evaporator. When only a heating cycle is required, the indoor heat exchanger 20 of the air conditioner indoor unit 100 can be used as a condenser, and the outdoor heat exchanger of the air conditioner outdoor unit can be used as an evaporator.

[0120] During the entire cycle, the temperature of the indoor space can be adjusted, the comfort of the indoor space can be improved, and the user experience can be enhanced.

[0121] In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0122] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner indoor unit, comprising: A casing, wherein the casing is provided with a heat dissipation air inlet, a main air inlet and an air outlet, the main air inlet and the air outlet are arranged opposite to each other in the up-down direction, and the heat dissipation air inlet is arranged on one side of the casing in the left-right direction; an indoor heat exchanger, the indoor heat exchanger being arranged in the casing; An indoor fan assembly, the indoor fan assembly is arranged in the housing, the indoor fan assembly drives air from the outside to enter the housing through the main air inlet and the heat dissipation air inlet, and the air flows to the indoor heat exchanger through the indoor fan assembly, and flows out from the air outlet after exchanging heat with the indoor heat exchanger to form a heat exchange airflow; An electric control box, the electric control box is arranged in the casing; It is characterized in that, in the left and right direction of the housing, the electric control box is arranged between the indoor fan assembly and the heat dissipation air inlet; Among them, a baffle is arranged in the electric control box, and the baffle divides the interior of the electric control box into an electric component accommodating chamber and a wiring chamber. A wiring opening is opened on the baffle, and the electric component accommodating chamber and the wiring chamber are connected through the wiring opening. The side wall of the electric control box corresponding to the wiring chamber is provided with connected heat dissipation inlet holes and heat dissipation outlet holes, and the heat dissipation inlet holes and the heat dissipation outlet holes are staggered with the wiring opening.

2. The air conditioner indoor unit according to claim 1, characterized in that: The heat dissipation air inlet hole and the heat dissipation air outlet hole are respectively arranged on the two opposite side walls of the electric control box corresponding to the wiring cavity part in the left and right directions, and the wiring opening is respectively spaced apart from the heat dissipation air inlet hole and the heat dissipation air outlet hole in the upper and lower directions.

3. The air conditioner indoor unit according to claim 2, characterized in that: The heat dissipation air inlet hole is connected to the heat dissipation air inlet port correspondingly, and the heat dissipation air outlet hole is connected to the indoor fan assembly correspondingly.

4. The air conditioner indoor unit according to claim 3, characterized in that: A wiring groove is arranged in the wiring cavity, and the wiring groove is correspondingly arranged between the heat dissipation air inlet hole and the heat dissipation air outlet hole, and the wiring groove is communicated with the wiring port.

5. The indoor unit of the air conditioner according to claim 2, characterized in that: An air inlet louver is arranged on one side of the electric control box in the left and right directions corresponding to the heat dissipation air inlet port. The air inlet louver is protruding relative to the electric control box and is open on one side in the up and down directions to form the heat dissipation air inlet port.

6. The air conditioner indoor unit according to claim 5, characterized in that: An air outlet louver is arranged on one side of the electric control box in the left and right directions corresponding to the indoor fan assembly. The air outlet louver is protruded relative to the electric control box and is open on one side in the up and down directions to form the heat dissipation air outlet.

7. The air conditioner indoor unit according to claim 6, characterized in that: The heat dissipation air inlet hole is arranged on a side of the air inlet louver in the up-down direction away from the wiring opening, and the heat dissipation air outlet hole is arranged on a side of the air outlet louver in the up-down direction away from the wiring opening.

8. The indoor unit of the air conditioner according to claim 6, characterized in that: There are a plurality of air outlet louvers, and the plurality of air outlet louvers are disposed at intervals in the up-down direction; there are a plurality of air inlet louvers, and the plurality of air inlet louvers are disposed at intervals in the up-down direction.

9. The air conditioner indoor unit according to claim 1, characterized in that: The baffle and the electric control box are integrally formed structural parts.

10. An air conditioner indoor unit, comprising: A casing, wherein the casing is provided with a heat dissipation air inlet, a main air inlet and an air outlet, the main air inlet and the air outlet are arranged opposite to each other in the up-down direction, and the heat dissipation air inlet is arranged on one side of the casing in the left-right direction; an indoor heat exchanger, the indoor heat exchanger being arranged in the casing; An indoor fan assembly, the indoor fan assembly is arranged in the housing, the indoor fan assembly drives air from the outside to enter the housing through the main air inlet and the heat dissipation air inlet, and the air flows to the indoor heat exchanger through the indoor fan assembly, and flows out from the air outlet after exchanging heat with the indoor heat exchanger to form a heat exchange airflow; An electric control box, the electric control box is arranged in the casing; It is characterized in that, in the left and right direction of the housing, the electric control box is arranged between the indoor fan assembly and the heat dissipation air inlet; Among them, a baffle is arranged in the electric control box, and the baffle divides the interior of the electric control box into an electrical component accommodating chamber and a wiring chamber. A wiring opening is opened on the baffle, and the electrical component accommodating chamber and the wiring chamber are connected through the wiring opening. The side wall of the electric control box corresponding to the wiring chamber is provided with connected heat dissipation inlet holes and heat dissipation outlet holes.

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