Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises a shell, an indoor air outlet, an indoor return air inlet, an outdoor air outlet and an outdoor air inlet are formed in the shell, a fresh air channel is formed between the indoor air outlet and the outdoor air inlet, and an exhaust channel is formed between the indoor return air inlet and the outdoor air outlet; the total heat exchange core body is arranged in the shell, and the total heat exchange core body is configured to perform heat exchange treatment on airflow flowing through the fresh air channel and airflow flowing through the exhaust channel; one fan assembly is arranged in the fresh air channel, and the other fan assembly is arranged in the exhaust channel; an electric controller is arranged in the electric control box; wherein an air inlet hole and an air exhaust hole are formed in the electric control box, a heat dissipation air channel is formed between the air inlet hole and the air exhaust hole in the electric control box, and the electric control box is arranged in the shell and located in the air exhaust channel. The heat dissipation efficiency of the electrical box is improved, and the operation reliability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an air treatment equipment technical field especially relates to a kind of air conditioner indoor units. BACKGROUND

[0002] Air conditioner is the electric appliance commonly used in people's daily life, along with the requirement of user to air quality, air conditioning with fresh air function is gradually popularized and used too. Air conditioner with fresh air function is usually additionally provided with full heat exchange core, and the air of indoor and outdoor is satisfied by full heat exchange core.

[0003] Chinese patent announcement No.CN220669734U discloses a kind of full heat exchanger, the inside of shell is provided with fan, heat exchange core, and in order to meet the requirement of control, still be equipped with electric appliance box, electric appliance box is set at the outside of shell, electric appliance box is provided with electric control panel to control full heat exchanger operation.In use process, electric appliance element on electric control panel is powered on and is easy to generate heat, and if not timely heat dissipation can cause electric control panel failure.And in the process of high-power operation, rely on natural heat dissipation mode, apparently cannot promptly and effectively dissipate heat, and then electric control panel failure is prone to occur, leading to low use reliability.

[0004] In view of this, how to design a kind of to improve the heat dissipation efficiency of electric appliance box to improve the reliability of equipment operation technology is the technical problem to be solved by the utility model.

[0005] The above information disclosed in the background is only used to increase the understanding of the background of the application, therefore, it can include prior art known by those skilled in the art. UTILITY MODEL CONTENT

[0006] In view of the problems pointed out in the background, the utility model provides a kind of air conditioner indoor unit, to improve the heat dissipation efficiency of electric appliance box to improve the reliability of equipment operation.

[0007] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions to achieve:

[0008] In some embodiments of the application, an air conditioner indoor unit is provided, comprising:

[0009] Shell, the shell is provided with indoor air outlet, indoor return air inlet, outdoor air outlet and outdoor air inlet, the fresh air passage is formed between the indoor air outlet and the outdoor air inlet, and the exhaust passage is formed between the indoor return air inlet and the outdoor air outlet;

[0010] Full heat exchange core, the full heat exchange core is arranged in the shell, and the full heat exchange core is configured to exchange heat between the airflow flowing through the fresh air passage and the airflow flowing through the exhaust passage.

[0011] Two fan assemblies, one of the fan assemblies is arranged in the fresh air passage, and the other of the fan assemblies is arranged in the exhaust air passage;

[0012] An electric control box is arranged in the electric control box;

[0013] The electric control box is arranged in the shell and located in the exhaust air passage.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are that: through corresponding arrangement of the air inlet hole and the air outlet hole on the electric control box, and arrangement of the electric control box in the exhaust air passage, during operation of the air conditioner indoor unit, the airflow input by the indoor return air inlet flows in the exhaust air passage, part of the airflow can enter the electric control box through the air inlet hole, and the airflow entering the electric control box can exchange heat with the heating electrical elements of the electric controller, thereby effectively and timely taking away the heat in the electric control box and discharging the heat from the air outlet hole, so that the airflow in the electric control box circulates to perform heat dissipation treatment, so that the electric controller obtains good heat dissipation treatment, and meanwhile, the outside of the electric control box can also perform heat dissipation through the airflow, heat dissipation efficiency of the electric appliance box is improved, and equipment operation reliability is improved.

[0015] Another embodiment of the application further provides an air conditioner indoor unit, which comprises:

[0016] A shell is arranged with an indoor air outlet, an indoor return air inlet, an outdoor air outlet and an outdoor air inlet;

[0017] A total heat exchange core is arranged with an exhaust air heat exchange flow channel and a fresh air heat exchange flow channel, and the exhaust air heat exchange flow channel and the fresh air heat exchange flow channel are in heat conduction with each other; the total heat exchange core is arranged in the shell, and an exhaust air passage is formed among the indoor return air inlet, the exhaust air heat exchange flow channel and the outdoor air outlet in the shell, and a fresh air passage is formed among the outdoor air inlet, the fresh air heat exchange flow channel and the indoor air outlet in the shell;

[0018] Two fan assemblies, one of the fan assemblies is arranged in the fresh air passage, and the other of the fan assemblies is arranged in the exhaust air passage;

[0019] An electric control box is arranged in the electric control box;

[0020] The electric control box is arranged in the shell and located in the exhaust air passage.

[0021] The air inlet hole is close to the indoor return air outlet, and the air outlet hole is close to the exhaust heat exchange flow channel.

[0022] Compared with the prior art, the advantages and positive effects of the utility model are: through corresponding setting of air inlet hole and air outlet hole on the electric control box, the air inlet hole is close to the indoor return air outlet, so that the airflow flowing into the indoor return air outlet can enter the electric control box through the air inlet hole, the airflow entering the electric control box can exchange heat with the heating electrical element of the electric control device, and then the heat in the electric control box is effectively taken away in time, the airflow after heat exchange is discharged from the air outlet hole to the outside of the electric control box and enters the exhaust heat exchange flow channel of the total heat exchange core, so that the airflow circulating in the electric control box is used for heat dissipation, so that the electric control device is well heat-dissipated, and meanwhile, the outside of the electric control box can also be heat-dissipated through the airflow, the heat dissipation efficiency of the electric appliance box is improved, and the equipment operation reliability is improved.

[0023] In an embodiment of the present application, the airflow flowing into the shell through the indoor return air outlet, part of the airflow directly flows into the total heat exchange core, and the remaining part of the airflow flows into the electric control box through the air inlet hole and is discharged from the air outlet hole and flows into the total heat exchange core.

[0024] The above technical scheme has the following advantages or beneficial effects: part of the airflow flowing into the shell through the indoor return air outlet directly exchanges heat with the electric control device for heat dissipation, and meanwhile, the airflow also flows outside the electric control box for heat dissipation, so that the heat dissipation is realized through the airflow inside and outside the electric control box, and the heat dissipation efficiency is improved.

[0025] In an embodiment of the present application, the shell is further provided with a first partition plate, one end of the first partition plate is connected to the total heat exchange core, and the first partition plate separates the two fan assemblies.

[0026] The shell is further provided with a second partition plate, one end of the second partition plate is connected to the total heat exchange core, and the second partition plate separates the indoor return air outlet and the indoor return air outlet.

[0027] The total heat exchange core separates the outdoor return air outlet and the outdoor return air outlet.

[0028] The above technical scheme has the following advantages or beneficial effects: the first partition plate can meet the installation requirements of separating the two fan assemblies, the second partition plate can also separate the indoor return air outlet and the indoor return air outlet, and meanwhile, the outdoor return air outlet and the outdoor return air outlet are separated by the total heat exchange core, so that the fresh air channel and the exhaust air channel are separated from each other, and the indoor exhaust air and the outdoor intake air are independent of each other.

[0029] In an embodiment of the present application, the second partition plate is provided with a communication port, the communication port is provided with a damper, and the communication port is configured to communicate the indoor air outlet and the indoor air return outlet, and the damper is configured to open and close the communication port.

[0030] The above technical solution has the following advantages or beneficial effects: the exhaust air channel and the fresh air channel are communicated through the communication port provided on the second partition plate, and the opening and closing of the communication port is further controlled by the damper, so that the indoor air return outlet and the indoor air outlet are communicated with each other, so as to meet the requirement that when the indoor temperature does not reach the set temperature value, the indoor air return outlet and the indoor air outlet are communicated by opening the damper to quickly adjust the indoor temperature, thereby improving the user experience.

[0031] In an embodiment of the present application, the air inlet hole is arranged on the end face of the electric control box opposite to the indoor air return outlet, and the air outlet hole is arranged on the side wall of the electric control box opposite to the second partition plate.

[0032] The air flow flowing into the shell from the indoor air return outlet, part of the air flow directly flows into the communication port, and the remaining part of the air flow flows into the electric control box through the air inlet hole and is discharged from the air outlet hole and flows into the communication port.

[0033] The above technical solution has the following advantages or beneficial effects: the air inlet hole is arranged on the end of the electric control box to be arranged opposite to the indoor air return outlet, so that the air flow flowing into the shell from the indoor air return outlet can enter the electric control box for heat dissipation treatment, and for the air flow output from the electric control box, the air outlet hole is arranged on the side wall of the electric control box and opposite to the second partition plate, so that the air conditioner indoor unit can meet the heat dissipation requirement of the electric control box during the process of replacing fresh air and internal circulation, thereby improving the use reliability.

[0034] In an embodiment of the present application, the air inlet hole is arranged away from the air outlet hole; and / or, the air inlet hole and the air outlet hole are arranged at the bottom of the electric control box.

[0035] The above technical solution has the following advantages or beneficial effects: by arranging the air inlet hole away from the air outlet hole, the air inlet and outlet of the electric control box can be effectively isolated to avoid the air flow interference between the air inlet hole and the air outlet hole, thereby improving the heat dissipation efficiency.

[0036] In addition, by arranging the air inlet hole at the bottom of the electric control box, the airflow entering the electric control box through the air inlet hole becomes hot air after heat exchange with the electric controller, and the hot air flows to the top area of the electric control box due to the upward movement of hot air, and the air outlet hole is arranged at the bottom of the electric control box, so that the hot air flows downward again after flowing to the area above the air outlet hole, thereby more comprehensively and effectively dissipating heat from the electrical components of the electric controller in different parts of the electric control box.

[0037] In an embodiment of the present application, a first fireproof plate is further arranged on the electric control box, the first fireproof plate covers the outside of the air inlet hole, and an air inlet interval is formed between the first fireproof plate and the electric control box.

[0038] The above technical solution has the following advantages or beneficial effects: by arranging the first fireproof plate on the electric control box, the first fireproof plate can block the outside of the air inlet hole, so that when the electric control box generates electric sparks due to circuit failure, the electric sparks sprayed out of the air inlet hole can be blocked by the first fireproof plate, to avoid damage to components outside the electric control box or even fire, thereby improving the safety and reliability of use.

[0039] In an embodiment of the present application, a second fireproof plate is further arranged on the electric control box, the second fireproof plate covers the outside of the air outlet hole, and an air outlet interval is formed between the second fireproof plate and the electric control box.

[0040] The above technical solution has the following advantages or beneficial effects: by arranging the second fireproof plate on the electric control box, the second fireproof plate can block the outside of the air outlet hole, so that when the electric control box generates electric sparks due to circuit failure, the electric sparks sprayed out of the air outlet hole can be blocked by the second fireproof plate, to avoid damage to components outside the electric control box or even fire, thereby improving the safety and reliability of use.

[0041] In an embodiment of the present application, a wiring terminal is further arranged on the electric control box, the wiring terminal is exposed outside the electric control box, and the wiring terminal is electrically connected with the electric controller.

[0042] The above technical solution has the following advantages or beneficial effects: by arranging the wiring terminal on the electric control box, when the electrical devices in the shell are connected with the electric controller in the electric control box, the electrical connection can be quickly completed by plugging the wiring terminal on the outside of the electric control box, thereby improving the assembly efficiency.

[0043] Other features and advantages of the present application will become more apparent after reading the detailed description of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0045] Figure 1 It is a structural schematic diagram of one embodiment of the indoor unit of the air conditioner of the present application.

[0046] Figure 2 It is a structural schematic diagram of another embodiment of the indoor unit of the air conditioner of the present application.

[0047] Figure 3 It is a structural schematic diagram of another embodiment of the indoor unit of the air conditioner of the present application.

[0048] Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 1 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0049] Figure 5 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 1 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0050] Figure 6 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 1 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0051] Figure 7 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0052] Figure 8 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0053] Figure 9 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0054] Figure 10 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 6 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0055] Figure 11 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0056] Figure 12 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0057] Figure 13 It is a structural schematic diagram of the indoor unit of the air conditioner. Figure 4 It is a structural schematic diagram of the indoor unit of the air conditioner.

[0058] Figure 14 Fig. 1 is a structural schematic view of a heating assembly in the present application; Figure 4 Fig. 2 is an exploded view of the heating assembly in the present application.

[0059] Figure 15 Fig. 3 is a structural schematic view of a heating assembly in the present application; Figure 4 Fig. 4 is an exploded view of the heating assembly in the present application.

[0060] Reference signs:

[0061] 1, housing; 11, indoor air outlet; 12, indoor air return; 13, outdoor air outlet; 14, outdoor air inlet; 15, first partition plate; 16, second partition plate; 17, threading plate; 18, first filter screen; 19, second filter screen;

[0062] 151, folded edge; 161, damper; 171, first wiring part; 172, second wiring part;

[0063] 101, bearing part; 102, fixing part; 103, clamping groove;

[0064] 2, full-heat exchange core;

[0065] 3, fan assembly; 31, mounting bracket; 32, fan;

[0066] 1, ventilation gap; 2, avoidance gap; 3, bearing matching part; 4, fixing matching part;

[0067] 4, electric control box; 41, electric controller; 42, air inlet hole; 43, air outlet hole; 44, first fireproof plate; 45, second fireproof plate; 46, terminal;

[0068] 5, heat exchanger; 51, first mounting plate; 52, second mounting plate; 53, drainage pump;

[0069] 6, heat preservation frame; 61, first connecting port; 62, second connecting port; 63, third connecting port; 64, fourth connecting port; 65, partition plate; 66, positioning groove; 67, first mounting part; 68, second mounting part; 69, wiring slot;

[0070] 651, ventilation port;

[0071] 7, heating assembly; 71, electric auxiliary bracket; 72, electric heating component; 711, first plug-in part; 712, first connecting part; 713, second plug-in part; 714, second connecting part; 721, first plug-in matching part; 722, first connecting matching part; 723, first end head; 724, second end head; 725, electric heating element. DETAILED DESCRIPTION

[0072] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0073] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0074] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0075] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0076] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0078] The indoor unit of the air conditioner in this application typically includes a casing, a fan, and a total heat exchange core installed in the casing. The casing is provided with two vents connecting to the indoor side and two vents connecting to the outdoor side. One fan draws in indoor air through the indoor vent, flows through the total heat exchange core for heat exchange, and then discharges it to the outside through the outdoor vent. The other fan draws in outdoor air through the outdoor vent, flows through the total heat exchange core for heat exchange, and then discharges it into the room through the indoor vent.

[0079] like Figures 1-4 As shown, one embodiment of this application provides an indoor air conditioning unit, including: a housing 1, on which an indoor air outlet 11, an indoor return air outlet 12, an outdoor air outlet 13, and an outdoor air inlet 14 are provided. A fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor return air outlet 12 and the outdoor air outlet 13.

[0080] Specifically, the outer casing 1 serves as the mounting structure for the indoor unit of the air conditioner. It is equipped with an indoor air outlet 11, an indoor return air outlet 12, an outdoor air outlet 13, and an outdoor air inlet 14 to meet the requirements for indoor and outdoor air flow.

[0081] Normally, the indoor air outlet 11 and the indoor air return outlet 12 are formed on the first end face of the outer casing 1, and the outdoor air outlet 13 and the outdoor air inlet 14 are formed on the second end face of the outer casing 1. The first end face and the second end face of the outer casing 1 are arranged opposite to each other.

[0082] The indoor unit of the air conditioner includes a total heat exchange core 2, which is disposed in the outer casing 1. The total heat exchange core 2 is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct and the airflow flowing through the exhaust air duct.

[0083] Specifically, the total heat exchange core 2 is provided with an exhaust air heat exchange flow channel and a fresh air heat exchange flow channel, and the exhaust air heat exchange flow channel and the fresh air heat exchange flow channel are in thermal conduction with each other; the indoor return air outlet 12, the exhaust air heat exchange flow channel, and the outdoor air outlet 13 form an exhaust air passage in the shell 1, and the outdoor air inlet 14, the fresh air heat exchange flow channel, and the indoor air outlet 11 form a fresh air passage in the shell 1.

[0084] The heat exchanger 5 is configured to perform heat exchange treatment on the air flow flowing through the fresh air passage.

[0085] Specifically, the heat exchanger 5 can perform heat exchange treatment on the air flow flowing through the fresh air passage, and the air flow after the heat exchange treatment is output to the indoor air through the indoor air outlet 11.

[0086] Two fan assemblies 3, the fan assembly 3 includes a mounting bracket and a fan 32, the fan 32 is arranged on the mounting bracket; one of the fan assemblies 3 is arranged in the fresh air passage, and the other of the fan assemblies 3 is arranged in the exhaust air passage.

[0087] Specifically, the two fan assemblies 3 are used to meet the driving requirements of indoor and outdoor air flow, one of the fan assemblies 3 is arranged in the fresh air passage to meet the requirement that the outdoor fresh air enters the shell 1 and is output from the indoor air outlet 11 after heat exchange through the total heat exchange core 2. The other of the fan assemblies 3 is arranged in the exhaust air passage to meet the requirement that the indoor dirty air enters the shell 1 and is output from the outdoor air outlet 13 after heat exchange through the total heat exchange core 2.

[0088] In an embodiment of the present application, as shown in Figure 4 , Figures 14-15 In order to perform heating treatment on the air after heat exchange treatment through the heat exchanger 5, the shell is further provided with an electric heating assembly 7.

[0089] In an embodiment, the electric heating assembly 7 includes an electric auxiliary bracket 71, and the electric auxiliary bracket 71 is provided with a first plug-in part 711 and a first connecting part 712.

[0090] The electric heating assembly 7 includes an electric heating part 72, one end of the electric heating part 72 is provided with a first plug-in matching part 721, and the other end of the electric heating part 72 is provided with a first connecting matching part 722.

[0091] The first plug-in part 711 and the first plug-in matching part 721 are plug-in assembled together, and the first connecting part 712 and the first connecting matching part 722 are fixedly connected together through screws; the electric auxiliary bracket 71 is arranged in the shell and located between the heat exchanger and the indoor air outlet.

[0092] Specifically, the electric heating assembly 7 adopts an electric heating component 72 to perform heating, and the electric heating component 72 can generate heat to meet the heating requirement after being powered on. In order to enable the electric heating assembly 7 to be fixedly installed in the shell, the electric heating component 72 is fixedly installed in the interior of the shell through the electric auxiliary support 71.

[0093] In order to facilitate the disassembly and maintenance of the electric heating component 72, in the assembly process, one end of the electric heating component 72 is installed on the electric auxiliary support 71 in a plug-in manner, and the other end of the electric heating component 72 is fixedly installed on the electric auxiliary support 71 through a screw, so as to reduce the number of screws to be tightened.

[0094] In the disassembly process, only the screws arranged at the corresponding end of the electric heating component 72 need to be unscrewed and removed, and the first plug-in matching part 721 of the electric heating component 72 can be directly pulled out of the first plug-in part 711 of the electric auxiliary support 71, so as to reduce the number of screws to be disassembled.

[0095] By arranging the first plug-in part 711 on the electric auxiliary support 71, and correspondingly arranging the first plug-in matching part 721 on the electric heating component 72, one end of the electric heating component 72 can be installed on the electric auxiliary support 71 in a plug-in manner, and the other end of the electric heating component 72 is fixedly installed through a screw connection, so as to reduce the amount of screws used, and only a small number of screws are needed to fixedly connect the fixed part and the fixed matching part together, so as to complete the assembly; in the later maintenance process, after the screws on the corresponding end of the electric heating component 72 are disassembled by the maintenance personnel, the electric heating component 72 can be pulled out of the electric auxiliary support 71, thereby reducing the disassembly difficulty and improving the maintenance convenience.

[0096] In another embodiment, the electric auxiliary support 71 is provided with a second plug-in part 713 and a second connecting part 714, and the top plate of the shell is provided with a second plug-in matching part (not shown) and a second connecting matching part (not shown); the second plug-in part 713 and the second plug-in matching part are installed together, and the second connecting part 714 and the second connecting matching part are fixedly connected together through a screw.

[0097] Specifically, the electric heating assembly 7 adopts an electric heating component 72 to perform heating, and the electric heating component 72 can generate heat to meet the heating requirement after being powered on. In order to enable the electric heating assembly 7 to be fixedly installed in the shell, the electric heating component 72 is fixedly installed in the interior of the shell through the electric auxiliary support 71.

[0098] In order to facilitate disassembly and maintenance of the heating assembly 7, during assembly, the electric auxiliary support 71 is inserted into the second insertion matching part of the shell through the second insertion part 713, and then the second connecting part 714 is fixedly connected with the second connecting matching part through the screw.

[0099] Similarly, when disassembling and maintaining the heating assembly 7, only a small amount of screws need to be disassembled, and the second insertion part 713 of the electric auxiliary support 71 can be directly pulled out from the second insertion matching part of the shell, so as to reduce the number of screws to be disassembled.

[0100] By providing the second insertion part 713 on the electric auxiliary support 71, and correspondingly providing the second insertion matching part on the shell, the electric auxiliary support 71 can be first inserted into the shell in the form of insertion, and then fixedly installed through the screw connection. In this way, the number of screws used can be reduced, and only a small number of screws are needed to fixedly connect the fixed part with the fixed matching part, so that the assembly can be completed. During the later maintenance process, the maintenance personnel only need to disassemble a small number of screws to disassemble the electric heating assembly 7 from the shell, thereby reducing the disassembly difficulty and improving the maintenance convenience.

[0101] In an embodiment of the present application, the electric auxiliary support 71 is provided with the first insertion part 711 and the first connecting part 712, and is also provided with the second insertion part 713 and the second connecting part 714.

[0102] One end of the electric heating component 72 is provided with the first insertion matching part 721, and the other end of the electric heating component 72 is provided with the first connecting matching part 722.

[0103] The top plate of the shell is provided with the second insertion matching part (not shown) and the second connecting matching part (not shown).

[0104] The first insertion part 711 and the first insertion matching part 721 are inserted together, and the first connecting part 712 and the first connecting matching part 722 are fixedly connected together through the screw.

[0105] The second insertion part 713 and the second insertion matching part are inserted together, and the second connecting part 714 and the second connecting matching part are fixedly connected together through the screw.

[0106] The first plug-in part 711 is arranged on the electric auxiliary support 71, and the first plug-in matching part 721 is arranged on the electric heating component 72 correspondingly. One end of the electric heating component 72 is installed on the electric auxiliary support 71 in a plug-in manner, and the other end of the electric heating component 72 is fixed and installed by screw connection. In this way, the number of screws can be reduced, and only a small number of screws are needed to fixedly connect the fixed part and the fixed matching part together to complete the assembly. During the later maintenance process, the electric heating component 72 can be pulled out of the electric auxiliary support 71 after the screws on the corresponding end of the electric heating component 72 are disassembled, thereby reducing the disassembly difficulty and improving the maintenance convenience. Similarly, the second plug-in part 713 is arranged on the electric auxiliary support 71, and the second plug-in matching part is arranged on the shell correspondingly. The electric auxiliary support 71 can be installed in the shell in a plug-in manner first, and then fixed and installed by screw connection. In this way, the number of screws can be reduced, and only a small number of screws are needed to fixedly connect the fixed part and the fixed matching part together to complete the assembly. During the later maintenance process, the electric heating assembly 7 can be disassembled from the shell by only disassembling a small number of screws, thereby reducing the disassembly difficulty and improving the maintenance convenience.

[0107] In an embodiment of the present application, the electric heating component 72 includes a first end 723, a second end 724 and an electric heating element 725, and the electric heating element 725 is arranged between the first end 723 and the second end 724.

[0108] The first end 723 is provided with the first plug-in matching part 721, and the second end 724 is provided with a first connection matching part 722.

[0109] Specifically, for the electric heating component, the electric heating element 725 can be connected to a power supply cable, so that the electric heating element 725 can generate heat in a powered state. The two ends of the electric heating element 725 are correspondingly provided with the first end 723 and the second end 724, and the first end 723 and the second end 724 are supported by an insulating material, thereby satisfying the installation of the electric heating element 725 on the electric auxiliary support 71.

[0110] The first end 723 is provided with the first plug-in matching part 721 to satisfy the plug-in installation with the electric auxiliary support 71, and the second end 724 is fixedly connected with the electric auxiliary support 71 by screws.

[0111] The expression entity of the above-mentioned plug-in part and plug-in matching part has various structural forms, for example: the plug-in part is a plug-in slot, and the plug-in matching part is a plug-in tongue; or, the plug-in part is a plug-in tongue, and the plug-in matching part is a plug-in slot, which is not limited and described here. The expression entity of the connecting part and the connecting matching part can be a hole structure, for example: the connecting part is a threaded hole, and the connecting matching part is a through hole; or, the connecting part is a through hole, and the connecting matching part is a threaded hole.

[0112] The electric heating component 72 adopts a split design, and the end of the electric heating element 725 is respectively provided with a first end head 723 and a second end head 724. The first end head 723 is provided with a first plug-in matching part 721 to meet the requirements of plug-in connection with the electric auxiliary support 71, and the second end head 724 is provided with a first connecting matching part 722 to meet the requirements of fixed installation on the electric auxiliary support 71 through a screw.

[0113] In an embodiment of the present application, the first connecting part 712 and the first connecting matching part 722 are arranged close to the indoor air outlet, and the first plug-in part 711 and the first plug-in matching part 721 are arranged away from the indoor air outlet.

[0114] Specifically, after the heating assembly 7 is assembled into the shell, in order to facilitate disassembly and maintenance, the first connecting part 712 and the first connecting matching part 722 are arranged close to the indoor air outlet. In this way, when the electric heating component 72 needs to be disassembled and maintained, the operator does not need to open the shell, but only needs to insert a tool into the shell through the indoor air outlet and disassemble the screw on the first connecting part 712 and the first connecting matching part 722. Then, the electric heating component 72 is pulled out to make the electric heating component 72 be able to be pulled out from the indoor air outlet.

[0115] When the maintenance is completed and the assembly is assembled again, the electric heating component 72 is inserted into the indoor air outlet, the first plug-in matching part 721 is plug-in assembled to the first plug-in part 711, and the first connecting part 712 and the first connecting matching part 722 are fixedly connected together through a screw, so that the disassembly and assembly of the electric heating component 72 can be completed without opening the shell, and the convenience of maintenance is improved.

[0116] By arranging the first connecting part 712 and the first connecting matching part 722 close to the indoor air outlet, when disassembled and maintained, the maintenance personnel can insert a screwdriver into the shell through the indoor air outlet to disassemble the screw on the first connecting part 712 and the first connecting matching part 722, and then tilt the electric heating component 72 to make the electric heating component 72 be able to be directly taken out from the indoor air outlet. Similarly, when installed and maintained, the electric heating component 72 is tilted and inserted into the shell through the indoor air outlet and plug-in assembled to the auxiliary support, and then fixed through a screw, so that the convenience of maintenance is more effectively improved.

[0117] In an embodiment of the present application, as shown in Figure 4 , Figures 11-12 For the electric control box 4, since the electric control box 4 is provided with the electric controller 41, the electric controller 41 will generate heat during the operation of the electric appliance in the air conditioner indoor unit, and the electric controller 41 in the electric control box 4 needs to be cooled.

[0118] Therefore, the electric control box 4 is provided with an air inlet hole 42 and an air outlet hole 43, and the inside of the electric control box 4 forms a cooling air duct between the air inlet hole 42 and the air outlet hole 43, and the electric control box 4 is arranged in the air outlet passage in the shell.

[0119] Specifically, by arranging the electric control box 4 in the air outlet passage in the shell, during the operation of the air conditioner indoor unit, the indoor return air inlet can suck in the indoor air and discharge it outward through the air outlet passage.

[0120] After the airflow flowing in the air outlet passage passes through the electric control box 4, part of the airflow can enter the electric control box 4 through the air inlet hole 42, and the temperature of the air sucked in by the indoor return air inlet is generally not higher than 30 degrees, so that the airflow sucked in by the indoor return air inlet can enter the electric control box 4 to cool the electric controller 41 in the electric control box 4.

[0121] After the airflow enters the electric control box 4 and exchanges heat with the electric controller 41, the heat-exchanged airflow is discharged from the electric control box 4 through the air outlet hole and flows back to the air outlet passage and is finally discharged to the outside of the shell.

[0122] By correspondingly arranging the air inlet hole 42 and the air outlet hole 43 on the electric control box 4, and arranging the electric control box 4 in the air outlet passage, during the operation of the air conditioner indoor unit, the airflow input by the indoor return air inlet flows in the air outlet passage, part of the airflow can enter the electric control box 4 through the air inlet hole 42, and the airflow entering the electric control box 4 can exchange heat with the heating electric appliance element of the electric controller 41, thereby effectively and timely taking away the heat in the electric control box 4 and discharging it from the air outlet hole. In this way, the electric control box 4 has circulating airflow for cooling, so that the electric controller 41 can be well cooled, and the outside of the electric control box 4 can also be cooled by the airflow, thereby improving the cooling efficiency of the electric appliance box and improving the operation reliability of the equipment.

[0123] In another embodiment of the present application, the electric control box 4 is provided with an air inlet hole 42 and an air outlet hole 43, and the inside of the electric control box 4 forms a cooling air duct between the air inlet hole 42 and the air outlet hole 43, and the electric control box 4 is arranged in the shell.

[0124] The air inlet hole 42 is close to the indoor return air inlet, and the air outlet hole 43 is close to the air outlet heat exchange flow channel.

[0125] Specifically, for the electric control box 4, the air inlet hole 42 arranged on the electric control box 4 is arranged close to the indoor return air inlet, so that part of the air flow sucked in through the indoor return air inlet can enter the electric control box 4 through the air inlet hole 42 arranged close to the indoor return air inlet, so that the air flow sucked in through the indoor return air inlet enters the electric control box 4, and the air flow entering the electric control box 4 can exchange heat with the heating electrical elements of the electric controller 41, thereby effectively and timely removing the heat in the electric control box 4, and the heat-exchanged air flow is discharged from the air outlet hole to the outside of the electric control box 4 and enters the exhaust heat exchange flow channel of the total heat exchange core, so that the air flow in the electric control box 4 circulates to remove heat, so that the electric controller 41 can be effectively cooled, and the outside of the electric control box 4 can also be cooled by the air flow, thereby improving the cooling efficiency of the electric control box and improving the operation reliability of the equipment.

[0126] After the air flow entering the electric control box 4 exchanges heat with the electric controller 41, the heat-exchanged air flow is discharged from the electric control box 4 through the air outlet hole and flows back into the exhaust channel and is finally discharged to the outside of the shell.

[0127] By arranging the air inlet hole 42 and the air outlet hole 43 on the electric control box 4, the air flow entering the electric control box 4 through the air inlet hole 42 arranged close to the indoor return air inlet can exchange heat with the heating electrical elements of the electric controller 41, thereby effectively and timely removing the heat in the electric control box 4, and the heat-exchanged air flow is discharged from the air outlet hole to the outside of the electric control box 4 and enters the exhaust heat exchange flow channel of the total heat exchange core, so that the air flow in the electric control box 4 circulates to remove heat, so that the electric controller 41 can be effectively cooled, and the outside of the electric control box 4 can also be cooled by the air flow, thereby improving the cooling efficiency of the electric control box and improving the operation reliability of the equipment.

[0128] The air flow entering the shell through the indoor return air inlet, part of the air flow directly enters the total heat exchange core, and the remaining part of the air flow flows into the electric control box 4 through the air inlet hole 42 and is discharged from the air outlet hole 43 and flows into the total heat exchange core.

[0129] By arranging the air inlet hole 42 and the air outlet hole 43 on the electric control box 4, the air flow entering the electric control box 4 through the air inlet hole 42 arranged close to the indoor return air inlet can exchange heat with the heating electrical elements of the electric controller 41, thereby effectively and timely removing the heat in the electric control box 4, and the heat-exchanged air flow is discharged from the air outlet hole to the outside of the electric control box 4 and enters the exhaust heat exchange flow channel of the total heat exchange core, so that the air flow in the electric control box 4 circulates to remove heat, so that the electric controller 41 can be effectively cooled, and the outside of the electric control box 4 can also be cooled by the air flow, thereby improving the cooling efficiency of the electric control box and improving the operation reliability of the equipment.

[0130] In an embodiment, the shell further comprises a first partition plate, one end of the first partition plate is connected to the total heat exchange core, and the first partition plate separates the two fan assemblies;

[0131] The shell further comprises a second partition plate, one end of the second partition plate is connected to the total heat exchange core, and the second partition plate separates the indoor air outlet and the indoor return air inlet;

[0132] The total heat exchange core separates the outdoor air outlet and the outdoor air inlet.

[0133] Specifically, the two fan assemblies 3 are arranged on the same side of the shell 1, facilitating the quick assembly of the two fan assemblies 3 in the same direction during assembly. Moreover, the two fan assemblies 3 are spaced apart by the first partition plate 15, so that the two fan assemblies 3 do not affect each other during operation.

[0134] By further arranging the second partition plate 16 in the shell 1, the second partition plate 16 separates the exhaust heat exchange flow channel and the fresh air heat exchange flow channel of the total heat exchange core 2 from each other through the ports adjacent to the indoor side, so as to meet the installation requirements of the total heat exchange core 2.

[0135] Among the four corners of the total heat exchange core 2, the corner facing the indoor side is separated by the second partition plate 16, the corner facing the fan assembly 3 side is separated by the first partition plate 15, and the other two corners of the total heat exchange core 2 can be connected to the corresponding side walls of the shell 1 in a conventional manner, so as to finally realize the mutual isolation of the exhaust air channel and the fresh air channel.

[0136] In an embodiment, the second partition plate is provided with a communication port, the communication port is provided with a damper, and the communication port is configured to communicate the indoor air outlet and the indoor air return port, and the damper is configured to open and close the communication port.

[0137] Specifically, in order to realize the mutual communication of the indoor air return port 12 and the indoor air outlet 11 when the exhaust air channel and the fresh air channel are subjected to indoor circulation treatment, a damper 161 can be directly added between the inlet of the exhaust air heat exchange flow channel and the outlet of the fresh air heat exchange flow channel of the total heat exchange core 2.

[0138] When the damper 161 is in a closed state, the indoor air return port 12 and the indoor air outlet 11 are isolated, so that the exhaust air channel and the fresh air channel are isolated from each other to meet the requirement of independent air inlet and outlet between indoor and outdoor, at this time, the air valves of the outdoor air inlet port 14 and the outdoor air outlet port 13 are in an open state.

[0139] When indoor circulation is required, the damper 161 can be opened, and the damper 161 allows the indoor air return port 12 and the indoor air outlet 11 to communicate with each other at the total heat exchange core 2, at this time, the air valves of the outdoor air inlet port 14 and the outdoor air outlet port 13 are in a closed state.

[0140] In an embodiment, the air inlet hole 42 is arranged on the end face of the electric control box 4 opposite to the indoor air return port, and the air outlet hole 43 is arranged on the side wall of the electric control box 4 opposite to the second partition plate;

[0141] The air flow from the indoor return air outlet into the shell, part of the air flow directly flows into the communication port, and the remaining part of the air flow flows into the electric control box 4 through the air inlet hole 42 and is discharged from the air outlet hole 43 and flows into the communication port.

[0142] Specifically, in order to meet the heat dissipation requirement of the electric control box 4 during the process of the air conditioner indoor unit in the internal circulation, the air outlet hole 43 is arranged on the side wall of the electric control box 4 facing the second partition plate, and the heat-exchanged gas discharged from the electric control box 4 can enter the other side of the second partition plate through the damper and be discharged from the indoor air outlet.

[0143] By arranging the air inlet hole 42 at the end of the electric control box 4 to be opposite to the indoor return air outlet, the air flow from the indoor return air outlet into the shell can enter the electric control box 4 for heat dissipation treatment, and for the air flow output from the electric control box 4, the air outlet hole 43 is arranged on the side wall of the electric control box 4 and opposite to the second partition, so that the heat dissipation requirement of the electric control box 4 can be met during the process of the air conditioner indoor unit in the fresh air replacement and internal circulation, thereby improving the use reliability.

[0144] In an embodiment of the present application, the air inlet hole 42 is arranged away from the air outlet hole 43.

[0145] Specifically, by arranging the air inlet hole 42 away from the air outlet hole 43, the air inlet and outlet of the electric control box 4 can be effectively isolated to avoid the air flow interference between the air inlet hole 42 and the air outlet hole 43, thereby improving the heat dissipation efficiency.

[0146] In an embodiment of the present application, the air inlet hole 42 and the air outlet hole 43 are arranged at the bottom of the electric control box 4.

[0147] Specifically, by arranging the air inlet hole 42 at the bottom of the electric control box 4, the air flow entering the electric control box 4 through the air inlet hole 42 is heat-exchanged with the electric control device 41 and becomes hot air, and the hot air flows to the top area of the electric control box 4 during the flow process due to the hot air rising, and the air outlet hole 43 is arranged at the bottom of the electric control box 4, so that the hot air flows to the area above the air outlet hole 43 after rising and flows downward again, thereby more comprehensively and effectively heat-dissipating the electric elements of the electric control device 41 in different parts of the electric control box 4.

[0148] In an embodiment of the present application, a first fireproof plate 44 is further arranged on the electric control box 4, the first fireproof plate 44 covers the outside of the air inlet hole 42, and an air inlet interval is formed between the first fireproof plate 44 and the electric control box 4.

[0149] Specifically, the electric control device 41 in the electric control box 4 can generate electric sparks due to faults during operation, and the electric sparks can be transmitted to the outside of the electric control box 4 through the air inlet hole 42. In order to avoid damage to the devices outside the electric control box 4 caused by the electric sparks, the first fireproof plate 44 can be covered outside the air inlet hole 42.

[0150] During use, when the electric sparks are output from the air inlet hole 42, the electric sparks can be blocked by the first fireproof plate 44 outside the air inlet hole, so as to prevent the electric sparks from escaping arbitrarily, thereby improving the safety and reliability of use.

[0151] By arranging the first fireproof plate 44 on the electric control box 4, the first fireproof plate can block the outside of the air inlet hole 42. When the electric control box 4 generates electric sparks due to circuit faults, the electric sparks sprayed out of the air inlet hole 42 can be blocked by the first fireproof plate 44, so as to avoid damage to the components outside the electric control box 4 caused by the electric sparks, even to avoid fire, thereby improving the safety and reliability of use.

[0152] In an embodiment of the present application, the electric control box 4 is further provided with a second fireproof plate 45, the second fireproof plate 45 covers the outside of the air outlet hole 43, and an air outlet interval is formed between the second fireproof plate 45 and the electric control box 4.

[0153] Specifically, the electric control device 41 in the electric control box 4 can generate electric sparks due to faults during operation, and the electric sparks can be transmitted to the outside of the electric control box 4 through the air outlet hole 43. In order to avoid damage to the devices outside the electric control box 4 caused by the electric sparks, the second fireproof plate 45 can be covered outside the air outlet hole 43.

[0154] During use, when the electric sparks are output from the air inlet hole 42, the electric sparks can be blocked by the first fireproof plate 44 outside the air inlet hole 42, so as to prevent the electric sparks from escaping arbitrarily, thereby improving the safety and reliability of use.

[0155] By arranging the second fireproof plate 45 on the electric control box 4, the second fireproof plate can block the outside of the air outlet hole. When the electric control box 4 generates electric sparks due to circuit faults, the electric sparks sprayed out of the air outlet hole can be blocked by the second fireproof plate 45, so as to avoid damage to the components outside the electric control box 4 caused by the electric sparks, even to avoid fire, thereby improving the safety and reliability of use.

[0156] In an embodiment of the present application, the electric control box 4 is further provided with a wiring terminal 46, the wiring terminal is exposed outside the electric control box 4, and the wiring terminal is electrically connected with the electric control device 41.

[0157] Specifically, since the electric control box 4 is arranged in the shell, in order to facilitate the electric connection between the electric control box 4 and the external electrical device, a wiring terminal 46 can also be arranged on the electric control box 4, the wiring terminal 46 extends to the outside of the electric control box 4, and the wiring terminal 46 is pre-connected with the electric controller 41. The external electrical device is connected with the wiring terminal 46 through a cable, so as to improve the convenience of circuit connection.

[0158] By arranging the wiring terminal 46 on the electric control box 4, when the electrical device in the shell is connected with the electric controller 41 in the electric control box 4, the electric connection can be quickly completed by plugging the wiring terminal 46 outside the electric control box 4, so as to improve the assembly efficiency.

[0159] In an embodiment of the present application, in order to improve the disassembly convenience of the fan assembly 3, the mounting mode of the fan assembly 3 is improved as follows.

[0160] As shown in Figure 6 and Figure 8 , the top plate of the shell 1 is provided with two sets of assembly units, each set of assembly units includes a bearing part 101 and a fixing part 102; the mounting bracket guide is provided with a bearing cooperation guide 3 and a fixing cooperation guide 4; the bearing cooperation guide 3 is screw-free assembled on the bearing part 101, and the fixing cooperation guide 4 is screw-fixedly connected with the fixing part 102.

[0161] Specifically, the fan 32 is fixedly mounted on the top plate of the shell 1 through the mounting bracket guide, wherein the top plate of the shell 1 is provided with the bearing part 101 and the fixing part 102, and correspondingly, the mounting bracket guide is provided with the bearing cooperation guide 3 and the fixing cooperation guide 4. The bearing part 101 and the bearing cooperation guide 3 cooperate to realize screw-free assembly, and the fixing part 102 and the fixing cooperation guide 4 cooperate to realize screw mounting.

[0162] In this way, in the actual assembly process, the mounting bracket guide is first mounted by cooperating the bearing cooperation guide 3 with the bearing part 101, and then the fixing cooperation guide 4 is fixedly mounted on the fixing part 102 through a screw.

[0163] Similarly, in the later maintenance process, the screw between the fixing part 102 and the fixing cooperation guide 4 can be disassembled first, then the bearing cooperation guide 3 is separated from the bearing part 101, and the fan assembly 3 can be disassembled from the shell 1.

[0164] By setting two assembling units on the shell 1, the bearing part 101 in the assembling unit can be connected with the bearing matching part 3 on the mounting bracket without screw connection, and the fixing part 102 in the assembling unit can be connected with the fixing matching part 4 on the mounting bracket through screw connection, so that in the actual assembling process, the operator can reduce the amount of screws by matching the bearing matching part 3 with the bearing part 101, and only a small number of screws are needed to fixedly connect the fixing part 102 and the fixing matching part 4 together, so that the assembling can be completed. Similarly, in the later maintenance process, the operator only needs to disassemble a small number of screws to disassemble the fan assembly 3 from the shell 1, thereby reducing the disassembly difficulty to improve the maintenance convenience.

[0165] In an embodiment, the bearing matching part 3 is slidably arranged on the bearing part 101.

[0166] Specifically, the matching mode of the bearing matching part 3 and the bearing part 101 can adopt a sliding connection mode, and the specific matching structure can adopt a conventional sliding installation structure such as a sliding rail matched with a sliding groove.

[0167] In this way, in the assembling process, the bearing matching part 3 is slidably assembled to the bearing part 101, and then the fixing part 102 and the fixing matching part 4 are screwed and fixed.

[0168] In some embodiments, the performance entity of the fixing part 102 can be a screw hole, and the performance entity of the fixing matching part 4 can be a fixing hole, which will not be repeated and limited here.

[0169] In an embodiment, the bearing matching part 3 is overlapped on the bearing part 101.

[0170] Specifically, the matching mode of the bearing matching part 3 and the bearing part 101 can adopt an overlapping mode, and the specific matching structure can be that the bearing matching part 3 is an overlapping plate extending out of the mounting bracket, and the bearing part 101 can be a hanging plate formed on the top plate of the shell 1, and the overlapping plate is overlapped on the hanging plate.

[0171] In an embodiment, the bearing matching part 3 is inserted into the bearing part 101.

[0172] Specifically, the matching mode of the bearing matching part 3 and the bearing part 101 can adopt an insertion mode, and the specific matching structure can be that the bearing matching part 3 is an insertion plate extending out of the mounting bracket, and the bearing part 101 can be an insertion slot formed on the top plate of the shell 1, and the insertion plate is inserted into the insertion slot.

[0173] In an embodiment, in order to realize the design of compact structure, two fan assemblies 3 are arranged side by side on one side of the shell 1.

[0174] The first spacing plate 15 is arranged between the two fan assemblies 3, and the assembly units are arranged on both sides of the first spacing plate 15, and the first spacing plate 15 is arranged between the side wall of the shell 1 and the total heat exchange core 2.

[0175] Specifically, the two fan assemblies 3 are arranged on the same side of the shell 1, and in the assembly process, the two fan assemblies 3 are quickly assembled in the same direction. Moreover, the two fan assemblies 3 are spaced apart by the first spacing plate 15, so that the two fan assemblies 3 do not affect each other during operation.

[0176] By arranging the two fan assemblies 3 on the same side of the shell 1 and spacing them apart by the first spacing plate 15, the device layout inside the shell 1 is more compact, so as to realize the compact design of the structure. At the same time, the first spacing plate 15 isolates the two fan assemblies 3, thereby realizing the mutual isolation of the fresh air channel and the exhaust air channel, ensuring that the air in and out of the shell 1 exchanges heat well and the air paths do not affect each other.

[0177] In an embodiment, the two fan assemblies 3 are arranged side by side between the indoor air outlet 11 and the outdoor air outlet 13.

[0178] One outlet of the fan 32 is communicated with the outdoor air outlet 13, and the other outlet of the fan 32 is communicated with the indoor air outlet 11.

[0179] Specifically, the two fan assemblies 3 are arranged on the same side of the shell 1 and located between the indoor air outlet 11 and the outdoor air outlet 13. In this way, the fan assembly 3 adjacent to the indoor air outlet 11 is used to drive the airflow to flow in the fresh air channel, and the fan assembly 3 adjacent to the outdoor air outlet 13 is used to drive the airflow to flow in the exhaust air channel.

[0180] By arranging the fan assembly 3 between the indoor air outlet 11 and the outdoor air outlet 13, the air output to the outdoor can be efficiently discharged to the outdoor through the outdoor air outlet 13 under the action of the corresponding fan 32, and similarly, the air output to the indoor can be efficiently delivered to the indoor under the action of the corresponding fan 32, so as to increase the air supply amount in the indoor, thereby reducing the air outlet resistance of the fan 32 and improving the air supply efficiency.

[0181] In an embodiment, the heat exchanger 5 is arranged between the indoor air outlet 11 and the outlet of the corresponding fan 32.

[0182] Specifically, for the heat exchanger 5, it is installed between the indoor air outlet 11 and the corresponding fan 32, so that the airflow output by the fan 32 directly blows to the heat exchanger 5.

[0183] By arranging the heat exchanger 5 between the indoor air outlet 11 and the outlet of the fan 32, the airflow output by the outlet of the fan 32 is directly blown to the heat exchanger 5, thereby improving the heat exchange efficiency of the airflow and the heat exchanger 5, and improving the heat exchange efficiency of the air conditioner indoor unit.

[0184] In an embodiment, the shell 1 is further provided with a partition plate 65, the partition plate 65 is provided with an air vent 651, the partition plate 65 covers the inner side of the indoor air outlet 11 in the interior of the shell 1, the partition plate 65 separates the indoor air outlet 11 and the indoor air return port 12, the indoor air outlet 11 is communicated with the outlet of the corresponding fan 32 through the air vent 651, and the heat exchanger 5 is located between the air vent 651 and the indoor air outlet 11.

[0185] Specifically, the partition plate 65 arranged in the shell 1 can surround the space where the heat exchanger 5 is installed at the outdoor air outlet 13, so as to facilitate the installation of the heat exchanger 5 at the indoor air outlet 11, and ensure that the airflow flowing in the fresh air channel can be effectively exchanged with the heat exchanger 5.

[0186] By arranging the partition plate 65 in the shell 1 to separate the indoor air outlet 11 and the indoor air return port 12, at the same time, the partition plate 65 covers the area of the indoor air outlet 11 to form a space for installing the heat exchanger 5, so that the airflow generated by the corresponding fan 32 is blown to the heat exchanger 5 for heat exchange through the air vent 651 and then output from the indoor air outlet 11, so as to ensure that the airflow output from the indoor air outlet 11 obtains sufficient heat exchange, thereby improving the heat exchange efficiency.

[0187] In an embodiment, the shell 1 is further provided with a second partition plate 16; the second partition plate 16 is arranged between the partition plate 65 and the total heat exchange core 2.

[0188] Specifically, by further arranging the second partition plate 16 in the shell 1, the second partition plate 16 separates the exhaust air heat exchange flow channel and the fresh air heat exchange flow channel of the total heat exchange core 2 from each other through the ports adjacent to the indoor side, so as to meet the installation requirements of the total heat exchange core 2.

[0189] Among them, the corner of the total heat exchange core 2 towards the indoor side is separated by the second partition plate 16, the corner towards the fan assembly 3 side is separated by the first partition plate 15, and the other two corners of the total heat exchange core 2 can be connected to the corresponding side wall of the shell 1 in a conventional installation manner, so as to finally realize the isolation of the exhaust air channel and the fresh air channel.

[0190] In an embodiment of the present application, as Figure 5 , Figure 8 and Figure 9As shown, in order to improve the air supply efficiency of the fan 32, the air conditioner indoor unit is improved as follows.

[0191] The application provides an air conditioner indoor unit, comprising: a shell 1, wherein an indoor air outlet 11, an indoor air return 12, an outdoor air outlet 13 and an outdoor air inlet 14 are arranged on the shell 1, a fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor air return 12 and the outdoor air outlet 13.

[0192] The air conditioner indoor unit comprises a total heat exchange core 2, wherein the total heat exchange core 2 is arranged in the shell 1, and the total heat exchange core 2 is configured to perform heat exchange treatment on airflows flowing through the fresh air channel and the exhaust air channel.

[0193] The air conditioner indoor unit comprises a heat exchanger 5, wherein the heat exchanger 5 is configured to perform heat exchange treatment on airflows flowing through the fresh air channel.

[0194] The air conditioner indoor unit comprises two fan assemblies 3, wherein each fan assembly 3 comprises a mounting bracket 31 and a fan 32, the fan 32 is arranged on the mounting bracket 31, one fan assembly 3 is arranged in the fresh air channel, and the other fan assembly 3 is arranged in the exhaust air channel.

[0195] The mounting bracket 31 and the top plate of the shell 1 form a space, the fan 32 is provided with a centrifugal fan, and a ventilation gap 1 is arranged on the mounting bracket 31, wherein the ventilation gap 1 is configured to allow airflows to flow between the upper and lower surfaces of the mounting bracket 31.

[0196] Specifically, for the fan assembly 3, the fan 32 can adopt a centrifugal fan and is fixedly arranged on the top of the shell 1 through the mounting bracket 31. The mounting bracket 31 and the top plate of the shell 1 form a space, so that in the running process of the fan 32, the airflows entering and exiting the total heat exchange core 2 will flow to the upper and lower surfaces of the mounting bracket 31 respectively.

[0197] The ventilation gap 1 is arranged on the mounting bracket 31, the upper and lower spaces of the mounting bracket 31 are connected through the ventilation gap 1, and in the running process of the centrifugal fan, when the airflow differences of the two inlets of the centrifugal fan are large, the airflows of the upper and lower layers of the mounting bracket 31 can flow reciprocally to balance the airflows of the two inlets of the centrifugal fan.

[0198] The ventilation gap 1 is arranged on the mounting bracket 31, so that the left and right sides of the mounting bracket 31 can be connected through the ventilation gap 1, and in the running process of the fan 32, the left and right sides of the mounting bracket 31 can balance the airflow distribution, so that the two inlets of the fan 32 can be supplied with air more uniformly, thereby improving the air supply efficiency of the fan 32.

[0199] In an embodiment, the ventilation gap guide 1 is arranged outside the fan 32 and away from the total heat exchange core 2.

[0200] Specifically, the ventilation gap guide 1 is arranged near the side wall of the shell 1, and in order to meet the requirement of the mounting bracket guide supporting the installation of the fan 32, the ventilation gap guide 1 is also arranged outside the fan 32.

[0201] Since the ventilation gap guide 1 is arranged near the side wall of the shell 1 and away from the total heat exchange core 2, the airflow can be reduced in the area near the side wall of the shell 1.

[0202] By arranging the ventilation gap guide 1 at the position of the mounting bracket guide outside the fan 32, a larger space is formed between the ventilation gap guide 1 and the side wall of the shell 1 to meet the requirement of the mounting bracket guide for up and down ventilation, and at the same time, the ventilation gap guide 1 is away from the total heat exchange core 2, which can ensure that sufficient negative pressure is formed at the total heat exchange core 2 to accelerate the flow speed of the airflow in the total heat exchange core 2.

[0203] In an embodiment, the mounting bracket guide is provided with an avoiding gap guide 2 arranged adjacent to the total heat exchange core 2, and the corresponding corner portion of the total heat exchange core 2 is clamped between two fans 32.

[0204] Specifically, in order to meet the requirement of compact installation of the internal components of the shell 1, the avoiding gap guide 2 is also arranged on the mounting bracket guide, and the design of the avoiding gap guide 2 enables the total heat exchange core 2 to be arranged closer to the fan 32 by using the space left by the avoiding gap guide 2, so as to realize the compact design of the structure in the shell 1.

[0205] By arranging the avoiding gap guide 2 on the mounting bracket guide, the corner portion of the total heat exchange core 2 is inserted into the area between the two fans 32 and connected with the first spacing plate 15, so that the total heat exchange core 2 can be arranged closer to the fan 32, and the components in the shell 1 are more compactly distributed, which is more conducive to the design requirement of compact overall structure, so as to reduce the overall volume of the shell 1.

[0206] At the same time, since the total heat exchange core 2 is closer to the inlet of the fan 32, it is more conducive to improving the negative pressure at the heat exchange core to accelerate the flow speed of the airflow in the total heat exchange core 2.

[0207] In an embodiment of the present application, as shown in FIG. 1, Figures 4-7 in order to improve the assembly efficiency of the heat preservation structure installed in the shell 1, the indoor air conditioner is improved in the following structure.

[0208] The air conditioner indoor unit comprises a shell 1, wherein an indoor air outlet 11, an indoor air return port 12, an outdoor air outlet 13 and an outdoor air inlet 14 are arranged on the shell 1, a fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor air return port 12 and the outdoor air outlet 13.

[0209] The air conditioner indoor unit comprises a full heat exchange core 2 arranged in the shell 1, wherein the full heat exchange core 2 is configured to perform heat exchange treatment on airflows flowing through the fresh air channel and the exhaust air channel.

[0210] The air conditioner indoor unit comprises a heat exchanger 5 configured to perform heat exchange treatment on airflows flowing through the fresh air channel.

[0211] The air conditioner indoor unit comprises two fan assemblies 3, wherein each fan assembly 3 comprises a mounting bracket 31 and a fan 32 arranged on the mounting bracket 31; one fan assembly 3 is arranged in the fresh air channel, and the other fan assembly 3 is arranged in the exhaust air channel.

[0212] The air conditioner indoor unit comprises a heat preservation frame 6, wherein a first connecting port 61, a second connecting port 62, a third connecting port 63 and a fourth connecting port 64 are arranged on the heat preservation frame 6.

[0213] The heat preservation frame 6 is arranged in the shell 1 and abuts against the inner side walls of the shell 1, the first connecting port 61 is connected with the indoor air outlet 11, the second connecting port 62 is connected with the indoor air return port 12, the third connecting port 63 is connected with the outdoor air inlet 14, and the fourth connecting port 64 is connected with the outdoor air outlet 13.

[0214] Specifically, when the side walls of the shell 1 need to be heat preserved and insulated, the heat preservation frame 6 in an integrated structure can be arranged in the shell 1, and the four walls of the heat preservation frame 6 abut against the corresponding inner side walls of the shell 1, so that the heat preservation and insulation of the four walls of the shell 1 can be realized by arranging the entire heat preservation frame 6 in the shell 1.

[0215] By arranging the heat preservation frame 6 in the shell 1, the side walls of the shell 1 can be heat preserved and insulated in an integrated manner, the heat preservation frame 6 has an integrated structure, and the heat preservation performance is better because of no gaps caused by a spliced structure; the related components in the shell 1 are arranged in the heat preservation frame 6, so that the assembly accuracy and consistency are improved, and the assembly efficiency is further improved.

[0216] In an embodiment, the heat preservation frame 6 is provided with a partition plate 65, the partition plate 65 is provided with a ventilation opening 651, the partition plate 65 covers the inner side of the first connecting port 61, the partition plate 65 separates the first connecting port 61 and the second connecting port 62, and the partition plate 65 separates the heat preservation frame 6 into a first installation area and a second installation area;

[0217] The first installation area is provided with the heat exchanger 5, and the second installation area is provided with the total heat exchange core 2 and the fan assembly 3.

[0218] One outlet of the fan 32 is connected with the fourth connecting port 64, and the outlet of the other fan 32 is communicated with the first installation area through the ventilation opening 651.

[0219] The heat exchanger 5 is arranged between the ventilation opening 651 and the first connecting port 61.

[0220] Specifically, since the heat preservation frame 6 is built in the shell 1, the related components in the shell 1 are also surrounded inside by the heat preservation frame 6. In order to realize the installation of different parts in different areas, the partition plate 65 can also be arranged in the heat preservation shelf.

[0221] The partition plate 65 is an integral structure with the heat preservation shelf, and under the action of the partition plate 65, the heat preservation frame 6 forms the first installation area and the second installation area which are separated. In the first installation area, the heat exchanger 5 is installed to satisfy that the airflow entering the room can be well heat-exchanged with the heat exchanger 5, thereby improving the efficiency of heat exchange.

[0222] By arranging the partition plate 65 in the heat preservation frame 6, the partition plate 65 separates the heat preservation frame 6 into two installation areas to respectively install the related components in the shell 1, thereby improving the accuracy of assembly and the consistency of assembly, and being more conducive to improving the assembly efficiency.

[0223] In an embodiment, for the second installation area, the fan assembly 3, the total heat exchange core 2 and the electric control box 4 and other components are correspondingly installed, and based on the above description in the embodiment, the first partition plate 15 and the second partition plate 16 can be arranged in the second installation area.

[0224] Specifically, the two fan assemblies 3 are arranged side by side on one side of the shell 1, the shell 1 is further provided with the first partition plate 15, the first partition plate 15 is located between the two fan assemblies 3, the inner wall of the heat preservation frame 6 is further provided with a positioning groove 66, the end of the first partition plate 15 is inserted into the positioning groove 66, and the first partition plate 15 is arranged between the positioning groove 66 and the total heat exchange core 2.

[0225] By setting the positioning groove 66, in the process of installing the first partition plate 15, the end of the first partition plate 15 can be inserted into the positioning groove 66 to realize the pre-assembly of the first partition plate 15 to the shell 1, which can effectively reduce the screw usage amount of the first partition plate 15 in the fixed installation, thereby improving the disassembly and assembly efficiency.

[0226] In an embodiment, the first partition plate 15 is provided with a folded edge 151, the end of the first partition plate 15 is inserted into the positioning groove 66, the folded edge 151 abuts against the top plate of the shell 1 and is clamped in the clamping groove 103, and the folded edge 151 is fixedly connected to the top plate of the shell 1 by a screw.

[0227] Specifically, for the first partition plate 15, in order to facilitate the operator to quickly install, the end of the first partition plate 15 can be inserted into the positioning groove 66 at the same time, and the folded edge 151 is inserted into the clamping groove 103 provided on the top plate of the shell 1, so that the first partition plate 15 is pre-positioned and assembled through the cooperation of the positioning groove 66 and the clamping groove 103, and finally the folded edge 151 is fixed to the top plate of the shell 1 by a single screw.

[0228] By setting the clamping groove 103 on the shell 1, in the process of installing the first partition plate 15, the folded edge 151 of the first partition plate 15 is clamped in the clamping groove 103 to realize the pre-assembly of the first partition plate 15 to the shell 1, and then the folded edge 151 is fixedly installed on the top plate of the shell 1 by a screw to realize the fixed installation of the first partition plate 15, which can effectively reduce the screw usage amount of the first partition plate 15 in the fixed installation, thereby improving the disassembly and assembly efficiency.

[0229] In another embodiment, for the second partition plate 16, the second partition plate 16 is arranged between the partition plate 65 and the total heat exchange core 2.

[0230] Specifically, by setting the second partition plate 16 in the shell 1, the second partition plate 16 is connected between the partition plate 65 and the total heat exchange core 2, and then the second partition plate 16 separates the exhaust air passage and the fresh air passage at the total heat exchange core 2 to ensure that the outdoor exhaust air and the indoor fresh air do not affect each other.

[0231] In an embodiment, in order to prolong the service life of the total heat exchange core 2, two first mounting portions 67 are arranged on the heat preservation frame 6 in a relative arrangement, and a first filter screen 18 is arranged between the two first mounting portions 67.

[0232] The first filter screen 18 is arranged between the total heat exchange core 2 and the indoor return air outlet 12.

[0233] Specifically, the first filter screen 18 is installed and fixed through two first mounting portions 67 formed in the heat preservation frame 6, and the first filter screen 18 can filter the air input by the indoor air inlet 12 into the shell 1, and then the filtered air enters the total heat exchange core 2.

[0234] The first mounting portion 67 can be in the form of a screw fixing or the like to assemble the first filter screen 18 in place, or can be in the form of a slot or the like to meet the installation requirements of the first filter screen 18.

[0235] The first filter screen 18 can effectively filter the indoor air after entering the shell 1, so as to protect the total heat exchange core from dust, thereby prolonging the service life of the total heat exchange core. The first mounting portion 67 provided on the heat preservation frame 6 can conveniently install the first filter screen 18, thereby improving the assembly convenience.

[0236] In an embodiment, the heat preservation frame 6 is provided with two second mounting portions 68 arranged oppositely, and a second filter screen 19 is arranged between the two second mounting portions 68.

[0237] The second filter screen 19 is arranged between the total heat exchange core 2 and the outdoor air inlet 14.

[0238] Specifically, the outdoor air first passes through the second filter screen 19 for filtering treatment before flowing into the total heat exchange core 2.

[0239] The second mounting portion 68 can be in the form of a screw fixing or the like to assemble the second filter screen 19 in place, or can be in the form of a slot or the like to meet the installation requirements of the second filter screen 19.

[0240] The second filter screen 19 can effectively filter the outdoor air after entering the shell 1, so as to protect the total heat exchange core from dust, thereby prolonging the service life of the total heat exchange core. The second mounting portion 68 provided on the heat preservation frame 6 can conveniently install the second filter screen 19, thereby improving the assembly convenience.

[0241] In another embodiment, in order to improve the heat exchange efficiency of the heat exchanger 5 and the air flow, a first mounting plate 51 is arranged between the first end of the heat exchanger 5 and the inner side wall of the heat preservation frame 6 adjacent to the heat preservation frame 6, a second mounting plate 52 is arranged between the second end of the heat exchanger 5 and the heat preservation frame 6, and the second mounting plate 52 is inclined towards the indoor air outlet 11 and connected between the indoor air outlet 11 and the indoor air inlet 12.

[0242] Specifically, the heat exchanger 5 is fixedly installed in the first installation area by the two installation plates, and the first installation plate 51 and the second installation plate 52 can well fix and support the heat exchanger 5 on both sides of the heat exchanger 5.

[0243] In addition, the second installation plate 52 extends to the indoor air outlet 11, and the inclined second installation plate 52 can guide the airflow after heat exchange of the heat exchanger 5, so that the airflow can quickly flow to the indoor air outlet 11.

[0244] By providing the installation plates at both ends of the heat exchanger 5, a relatively closed air outlet area is formed between the heat exchanger 5 and the indoor air outlet 11, and the second installation plate 52 extends to the indoor air outlet 11 in an inclined manner, so that the second installation plate 52 can guide the airflow after heat exchange of the heat exchanger 5, and the airflow after heat exchange can smoothly flow to the indoor air outlet 11.

[0245] In an embodiment, the housing 1 is further provided with a water collecting tray (not shown), which is located in the first installation area and arranged below the heat exchanger 5.

[0246] Specifically, the water collecting tray is installed in the first installation area, and the water collecting tray and the top plate of the housing 1 form a relatively closed heat exchange cavity in the first installation area, so that the airflow entering the heat exchange cavity can be well heat exchanged with the heat exchanger 5.

[0247] At the same time, the water collecting tray can collect defrosting water of the heat exchanger 5.

[0248] In addition, the housing 1 is further provided with a drainage pump 53, which is arranged above the water collecting tray and between the second installation plate 52 and the partition plate 65.

[0249] By providing the water collecting tray at the bottom of the first installation area to meet the requirement of collecting condensed water on the evaporator, and arranging the drainage pump 53 outside the second installation plate 52, the airflow after heat exchange of the heat exchanger 5 is less blocked by the drainage pump 53 when flowing to the indoor air outlet 11, so as to reduce the air resistance at the indoor air outlet 11 and improve the air outlet efficiency.

[0250] In an embodiment of the present application, as shown in Figures 4-7 In order to realize compact design of the overall structure, the indoor unit of the air conditioner is improved and designed as follows.

[0251] The air conditioner indoor unit comprises a shell 1, wherein an indoor air outlet 11, an indoor air return 12, an outdoor air outlet 13 and an outdoor air inlet 14 are arranged on the shell 1, a fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor air return 12 and the outdoor air outlet 13.

[0252] The air conditioner indoor unit comprises a full heat exchange core 2 arranged in the shell 1, wherein the full heat exchange core 2 is configured to perform heat exchange treatment on airflows flowing through the fresh air channel and the exhaust air channel.

[0253] The air conditioner indoor unit comprises a heat exchanger 5 configured to perform heat exchange treatment on airflows flowing through the fresh air channel.

[0254] The air conditioner indoor unit comprises two fan assemblies 3, wherein each fan assembly 3 comprises a mounting bracket 31 and a fan 32 arranged on the mounting bracket 31; one fan assembly 3 is arranged in the fresh air channel, and the other fan assembly 3 is arranged in the exhaust air channel.

[0255] The shell 1 comprises a first mounting area and a second mounting area, the heat exchanger 5 is arranged in the first mounting area, the fan assembly 3 and the full heat exchange core 2 are arranged in the second mounting area, the indoor air outlet 11 communicates with the first mounting area, the indoor air return 12, the outdoor air outlet 13 and the outdoor air inlet 14 communicate with the second mounting area, and the first mounting area extends to the indoor air return 12 and covers part of the indoor air return 12 inside the shell 1.

[0256] Specifically, the heat exchanger 5 and the full heat exchange core 2 are arranged in the shell 1, so that the number of components in the shell 1 is relatively large. For the indoor air return 12 and the indoor air outlet on the shell 1, the distance between the two needs to meet the connection requirements of the pipeline in the user's home, so the distance between the two cannot be too small. In order to make the structure more compact, part of the area of the indoor air return 12 inside the shell 1 can be occupied to meet the installation requirements of related components.

[0257] Specifically, the first mounting area extends to the indoor air return 12 and covers part of the indoor air return 12 inside the shell 1. In this way, the length of the first mounting area is further increased, so that the heat exchanger 5 and the drain pump 53 and other components can be installed in the first mounting area, and the heat exchanger 5 has a large enough heat exchange area while ensuring the compact design of the structure.

[0258] By setting the first mounting area and the second mounting area in the shell 1 independently, the first mounting area is used to meet the installation requirement of the heat exchanger 5, at the same time, in order to meet the compact design requirement of the internal structure of the shell 1 and the requirement of the heat exchange area of the heat exchanger 5, the first mounting area will occupy part of the area where the indoor return air inlet 12 is located, so that part of the indoor return air inlet 12 is shielded by the first mounting area, and then the area between the indoor return air inlet 12 and the indoor air outlet 11 can be fully utilized to increase the size of the first mounting area, so as to meet the installation requirement of the heat exchanger 5 with more heat exchange area, on the one hand, the heat exchange area of the heat exchanger 5 can be increased, and on the other hand, the compact design requirement of the internal structure of the shell 1 can be met, so as to reduce the overall volume of the air conditioner.

[0259] In an embodiment, based on the above embodiment, the heat preservation frame 6 is divided into the first mounting area and the second mounting area by the partition plate 65; the heat preservation frame 6 will shield part of the indoor return air inlet 12 in the shell 1.

[0260] Specifically, by increasing the heat preservation frame 6 in the shell 1, on the one hand, the heat preservation frame 6 can be used for the overall heat preservation treatment of the side wall of the shell 1, so as to meet the heat preservation requirement; the heat preservation frame 6 is a whole structure, so as to avoid the gap caused by the assembled structure and has better heat preservation performance; on the other hand, the partition plate 65 in the heat preservation frame 6 divides the heat preservation frame 6 into two mounting areas to respectively install the related components in the shell 1, so as to improve the assembly accuracy and the consistency of the assembly, and is more conducive to improving the assembly efficiency.

[0261] In an embodiment, the ventilation area of the second connecting port 62 is smaller than the ventilation area of the indoor return air inlet 12.

[0262] The heat preservation frame 6 shields part of the indoor return air inlet 12 in the shell 1.

[0263] Specifically, by designing the ventilation area of the second connecting port 62 to be smaller than the ventilation area of the indoor return air inlet 12, the length of the first mounting area in the shell 1 can be extended by the heat preservation frame 6, so as to meet the installation requirement of the heat exchanger 5 and realize the compact design of the structure.

[0264] Wherein, the area of the indoor return air inlet 12 shielded by the heat preservation frame 6 and the total opening area ratio of the indoor return air inlet 12 can be obtained by test according to different air supply requirements, so as to meet the requirement of the air return amount of the air conditioner indoor unit, which is not limited here.

[0265] In another embodiment of the present application, as shown in Figure 6 and Figure 10 in order to realize the strong and weak electricity separation design of the related electrical devices in the shell 1, the air conditioner indoor unit is improved in structure as follows.

[0266] The air conditioner indoor unit in an embodiment of the present application comprises a shell 1, wherein an indoor air outlet 11, an indoor air return 12, an outdoor air outlet 13 and an outdoor air inlet 14 are arranged on the shell 1, a fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor air return 12 and the outdoor air outlet 13; the outdoor air outlet 13 and the outdoor air inlet 14 are respectively provided with air valves (not marked).

[0267] The air conditioner indoor unit comprises a total heat exchange core 2 arranged in the shell 1, wherein the total heat exchange core 2 is configured to perform heat exchange treatment on airflows flowing through the fresh air channel and the exhaust air channel.

[0268] The air conditioner indoor unit comprises two fan assemblies 3, wherein each fan assembly 3 comprises a mounting bracket 31 and a fan 32 arranged on the mounting bracket 31; one fan assembly 3 is arranged in the fresh air channel, and the other fan assembly 3 is arranged in the exhaust air channel.

[0269] The air conditioner indoor unit comprises an electric control box 4, wherein an electric controller is arranged in the electric control box 4, and the electric control box 4 is arranged on the shell 1.

[0270] The shell 1 is provided with a first wiring part 171, the cable of the air valve is wired and extended through the first wiring part 171, the cable of the air valve extends into the electric control box 4 from a first end of the electric control box 4 and is electrically connected to the electric controller, the cable of the fan 32 is arranged outside the first wiring part 171 and extends into the electric control box 4 from a second end of the electric control box 4 and is electrically connected to the electric controller, and the first end and the second end of the electric control box 4 are arranged in opposite directions.

[0271] Specifically, the shell 1 is provided with the first wiring part 171, the first wiring part 171 can form a cable wiring channel for the air valve, and the cable of the air valve can be isolated from the cable of the fan 32 under the action of the first wiring part 171.

[0272] In addition, the cable of the air valve and the cable of the fan 32 extend into the electric control box 4 from different ends of the electric control box 4, so that the strong and weak electricity can be more effectively separated.

[0273] In this way, the cable of the fan 32 and the cable of the air valve can be prevented from being intertwined during the wiring process of the shell 1, so that the strong and weak electricity can be prevented from being mixed together.

[0274] Since the cables of the strong and weak electricity are isolated from each other, especially the cable of the air valve is separately wired and protected through the first wiring part 171, the safety in use can be improved.

[0275] By arranging the first wiring part 171 in the shell 1, the cable of the air valve is separately routed through the first wiring part 171 as weak current, the cable of the air valve will enter the electric control box 4 from the first end of the electric control box 4, and the cable of the fan 32 will be routed outside the first wiring part 171 to be isolated from the cable of the air valve, and the cable of the fan 32 will enter the electric control box 4 from the second end of the electric control box 4 to effectively separate the strong and weak currents and improve the safety and reliability of the use of the air conditioner indoor unit.

[0276] In another embodiment of the present application, the shell 1 is provided with a first wiring part 171 and a second wiring part 172, which are isolated from each other, the cable of the air valve is routed through the first wiring part 171 and extends to the electric control box 4 to be electrically connected to the electric controller, and the cable of the fan 32 is routed through the second wiring part 172 and extends to the electric control box 4 to be electrically connected to the electric controller.

[0277] Specifically, in order to simultaneously guide and protect the routing of the cables of the air valve and the fan 32, the first wiring part 171 and the second wiring part 172 can be arranged in the shell 1 at the same time, the first wiring part 171 and the second wiring part 172 are completely separated and have a sufficient safety distance between them to avoid the influence of the cables of the strong and weak currents on each other.

[0278] By arranging the first wiring part 171 and the second wiring part 172 in the shell 1, the cable of the air valve will be routed through the first wiring part 171 and guided to extend into the electric control box 4, and similarly, the cable of the fan 32 will be routed through the second wiring part 172 and guided to extend into the electric control box 4, so that the cable of the air valve and the cable of the fan 32 are isolated from each other to achieve the separation of the strong and weak currents, on the one hand, the cable routing in the shell 1 is more regular, and on the other hand, safety hazards caused by the crossing of the strong and weak currents can be avoided to improve the safety and reliability of the use of the air conditioner indoor unit.

[0279] In an embodiment, the first wiring part 171 is arranged between the total heat exchange core 2 and the top plate of the shell 1.

[0280] Specifically, the first wiring part 171 can guide the cable of the air valve to extend and route between the total heat exchange core 2 and the top plate of the shell 1. In this way, the space between the total heat exchange core 2 and the shell 1 can be fully utilized to route the cable of the air valve, on the one hand, the cable of the air valve can be routed with a closer line to the electric control box 4, and on the other hand, the cable of the air valve is shielded by the total heat exchange core 2 to play a role in arranging the wire harness.

[0281] By arranging the first wiring portion 171 between the total heat exchange core 2 and the top plate of the shell 1, the space between the total heat exchange core 2 and the top plate of the shell 1 is fully utilized for wiring, and thus the use amount of cables can be effectively saved without long-distance wiring along the side wall of the shell 1.

[0282] In an embodiment, two fan assemblies 3 are arranged side by side on one side of the shell 1.

[0283] Specifically, by arranging two fan assemblies 3 on the same side of the shell 1, the cables of the two fans 32 can be wired together, which simplifies the wiring process of the two fans 32 and improves the assembly efficiency.

[0284] In addition, the two fans 32 are arranged side by side, which facilitates the wiring of the cables of the fans 32 and realizes the regular design of the wire harness of the strong current cables.

[0285] In an embodiment, the electric control box 4 is arranged in the air discharge channel, and the electric control box 4 is located at the side of the total heat exchange core 2.

[0286] Specifically, for the electric control box 4, the electric control box 4 is arranged in the air discharge channel formed in the shell 1 to install the electric control box 4 by using the space of the air discharge channel. At the same time, the electric control box 4 is in the air discharge channel, and the heat generated by the electric controller in the electric control box 4 can be taken away by the airflow in the air discharge channel to achieve heat dissipation.

[0287] In addition, since the electric control box 4 is arranged at the side of the total heat exchange core 2, the cable of the air valve can enter the electric control box 4 after passing over the total heat exchange core 2, so as to shorten the length of the wiring.

[0288] By arranging the electric control box 4 at the side of the total heat exchange core 2 and in the air discharge channel, on the one hand, the airflow in the air discharge channel is used to dissipate heat of the electric control box 4, and on the other hand, the cable wired through the top of the total heat exchange core 2 can be directly extended to the electric control box 4 at the side, so as to shorten the extension length of the cable.

[0289] In an embodiment, a threading plate 17 is arranged in the shell 1, and the threading plate 17 is arranged between the total heat exchange core 2 and the top plate of the shell 1.

[0290] The threading plate 17 is provided with a first wiring groove, and the cable of the air valve is arranged in the first wiring groove. The first wiring groove is a first wiring portion 171.

[0291] Specifically, in order to facilitate the formation of the first wiring part 171 in the shell 1, an independent threading plate 17 can be used to form the first wiring part 171. The threading plate 17 is provided with a first wiring groove for the air valve cable, which limits and guides the cable of the air valve through the first wiring groove, and the first wiring groove makes the cable of the air valve independent of the cable of the fan 32, so that the two cables do not cross and contact each other.

[0292] During the assembly of the shell 1, the threading plate 17 is arranged against the top plate of the shell 1 and can be fixedly installed on the top plate of the shell 1 by screws. The threading plate 17 is made of insulating material to improve the wiring safety of the cable.

[0293] By arranging the threading plate 17 between the full-heat exchange core 2 and the top plate of the shell 1, the threading plate 17 is provided with a first wiring groove to meet the wiring requirements of the cable of the air valve, thereby realizing the function of the first wiring part 171.

[0294] In an embodiment, the threading plate 17 is provided with a second wiring groove, which is arranged separately from the first wiring groove, and at least one cable of the fan 32 is arranged in the second wiring groove.

[0295] Specifically, in order to meet the wiring requirements of the cable of the fan 32 through the threading plate 17, a second wiring groove can be further provided on the threading plate 17, which is separated from the first wiring groove to realize the separate arrangement of strong and weak electricity.

[0296] By arranging the second wiring groove separately from the first wiring groove on the threading plate 17, the second wiring groove can meet the wiring requirements of the cable of the fan 32, thereby realizing the function of the second wiring part 172.

[0297] In an embodiment, the first wiring groove and the second wiring groove are respectively provided with a wire clamp.

[0298] Specifically, after the cable is wired in place in the first wiring groove and the second wiring groove, the wire clamp can be used to limit the cable in the wiring groove from the outside, so as to block the cable from escaping from the wiring groove.

[0299] By arranging the wire clamp in the first wiring groove and the second wiring groove, the wire clamp can limit the cable in the wiring groove to prevent the cable from escaping from the wiring groove, thereby improving the reliability of the wiring.

[0300] In an embodiment, when the heat preservation frame 6 is arranged in the shell 1, a wiring groove 69 is further arranged on the heat preservation frame 6 in the second mounting area, the wiring groove 69 is arranged between the full-heat exchange core 2 and the electric control box 4, and the cable of the air valve is further arranged in the wiring groove 69.

[0301] Specifically, the cable of the damper passes through between the full heat exchange core 2 and the top plate of the shell 1, and then further extends to the electric control box 4 through the wiring groove 69 formed on the heat preservation frame 6.

[0302] By additionally arranging the wiring groove 69 on the heat preservation frame 6, the wiring groove 69 can meet the wiring requirement of the cable of the damper in cooperation with the first wiring part 171, and further meet the wiring requirement of the cable of the damper by fully utilizing the structure of the heat preservation frame 6, so as to improve the wiring quality of the cable.

[0303] In an embodiment of the present application, as shown in Figures 4-6 In order to meet the requirement of the air flow in the internal circulation and simplify the structure in the shell 1 to reduce the assembly cost and manufacturing cost, the indoor air conditioner is improved as follows.

[0304] The indoor air conditioner provided by the present application comprises a shell 1, wherein the shell 1 is provided with an indoor air outlet 11, an indoor air return inlet 12, an outdoor air outlet 13 and an outdoor air inlet 14.

[0305] The indoor air conditioner comprises a full heat exchange core 2, wherein the full heat exchange core 2 is provided with an exhaust air heat exchange flow channel and a fresh air heat exchange flow channel, and the exhaust air heat exchange flow channel and the fresh air heat exchange flow channel are in heat conduction with each other; an exhaust air passage is formed among the indoor air return inlet 12, the exhaust air heat exchange flow channel and the outdoor air outlet 13 in the shell 1, and a fresh air passage is formed among the outdoor air inlet 14, the fresh air heat exchange flow channel and the indoor air outlet 11 in the shell 1.

[0306] The indoor air conditioner comprises a heat exchanger 5, wherein the heat exchanger 5 is configured to perform heat exchange treatment on the air flow flowing through the fresh air passage.

[0307] The indoor air conditioner comprises two fan assemblies 3, wherein each fan assembly 3 comprises a mounting bracket and a fan 32 arranged on the mounting bracket; one fan assembly 3 is arranged in the fresh air passage, and the other fan assembly 3 is arranged in the exhaust air passage.

[0308] The indoor air conditioner further comprises a damper 161 arranged between the inlet of the exhaust air heat exchange flow channel and the outlet of the fresh air heat exchange flow channel, and the damper 161 is configured to selectively connect the indoor air outlet 11 and the indoor air return inlet 12.

[0309] Specifically, in order to realize the mutual connection between the indoor air return inlet 12 and the indoor air outlet 11 when the exhaust air passage and the fresh air passage are subjected to the internal circulation treatment, the damper 161 is directly arranged between the inlet of the exhaust air heat exchange flow channel and the outlet of the fresh air heat exchange flow channel of the full heat exchange core 2.

[0310] When the damper 161 is in the closed state, the indoor return air outlet 12 and the indoor air outlet 11 are isolated, so that the exhaust air passage and the fresh air passage are isolated from each other to meet the requirement of independent air inlet and outlet of the indoor and outdoor. At this time, the air valves of the outdoor air inlet 14 and the outdoor air outlet 13 are in the open state.

[0311] When the indoor circulation is required, the damper 161 can be opened. The damper 161 is arranged at the full-heat exchange core 2 to connect the indoor return air outlet 12 and the indoor air outlet 11 to each other. At this time, the air valves of the outdoor air inlet 14 and the outdoor air outlet 13 are in the closed state.

[0312] By arranging the damper 161 between the inlet of the exhaust air heat exchange passage and the outlet of the fresh air heat exchange passage of the full-heat exchange core 2, the damper 161 is used to control the mutual connection of the indoor return air outlet 12 and the indoor air outlet 11. When the indoor temperature does not reach the set temperature value, the damper 161 is opened to connect the indoor return air outlet 12 and the indoor air outlet 11, so as to quickly adjust the indoor temperature, thereby improving the user experience. In addition, since the damper 161 is arranged at the full-heat exchange core 2 and separates the inlet of the exhaust air heat exchange passage and the outlet of the fresh air heat exchange passage, the indoor circulation air passage is not additionally required, the use amount of parts is reduced, and the assembly cost and manufacturing cost are reduced.

[0313] In an embodiment, the outlet side of the fresh air heat exchange passage of the full-heat exchange core 2 is provided with a first partition plate 15, and the other side of the outlet of the fresh air heat exchange passage of the full-heat exchange core 2 is provided with a second partition plate 16.

[0314] The first partition plate 15 and the second partition plate 16 are configured to separate the exhaust air passage and the fresh air passage. The first partition plate 15 is arranged between the indoor air outlet 11 and the outdoor air outlet 13. The second partition plate 16 is also arranged between the indoor return air outlet 12 and the indoor air outlet 11.

[0315] The second partition plate 16 is provided with a communication port, and the damper 161 is arranged in the communication port.

[0316] Specifically, the first partition plate 15 and the second partition plate 16 can meet the installation requirements of installing the full-heat exchange core 2 in the shell 1 and isolating the exhaust air passage and the fresh air passage from each other. The damper 161 is arranged in the communication port of the second partition plate 16, so as to facilitate the installation of the damper 161 in the shell 1.

[0317] The first partition plate 15 and the second partition plate 16 are arranged to separate the exhaust air passage and the fresh air passage at the outlet of the fresh air heat exchange flow channel of the total heat exchange core 2, meanwhile, the communication opening arranged on the second partition plate 16 can satisfy the mutual communication of the exhaust air passage and the fresh air passage to make the indoor return air outlet 12 and the indoor air outlet 11 communicate to realize the internal circulation, and the damper 161 is installed at the communication opening to realize the start-stop control of the internal circulation, and the damper 161 is convenient to install and fix.

[0318] In the description of the above-described embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0319] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air conditioner indoor unit characterized by comprising: The application relates to an air conditioner, which comprises the following parts: an outer shell, which is provided with an indoor air outlet, an indoor air return, an outdoor air outlet and an outdoor air inlet, a fresh air channel being formed between the indoor air outlet and the outdoor air inlet, and an exhaust air channel being formed between the indoor air return and the outdoor air outlet; a total heat exchange core, which is arranged in the outer shell and is configured to perform heat exchange treatment on airflows flowing through the fresh air channel and the exhaust air channel; two fan assemblies, one of which is arranged in the fresh air channel and the other of which is arranged in the exhaust air channel; an electric control box, which is provided with an electric controller; wherein the electric control box is provided with an air inlet hole and an air outlet hole, a heat dissipation air duct being formed between the air inlet hole and the air outlet hole in the electric control box, and the electric control box is arranged in the outer shell and located in the exhaust air channel.

2. An air conditioner indoor unit characterized by comprising: The application relates to an air conditioner, which comprises the following parts: an outer shell, which is provided with an indoor air outlet, an indoor air return, an outdoor air outlet and an outdoor air inlet; a total heat exchange core, which is provided with an exhaust air heat exchange flow channel and a fresh air heat exchange flow channel, the two channels being in heat conduction with each other; the total heat exchange core is arranged in the outer shell, an exhaust air channel being formed between the indoor air return, the exhaust air heat exchange flow channel and the outdoor air outlet in the outer shell, and a fresh air channel being formed between the outdoor air inlet, the fresh air heat exchange flow channel and the indoor air outlet in the outer shell; two fan assemblies, one of which is arranged in the fresh air channel and the other of which is arranged in the exhaust air channel; an electric control box, which is provided with an electric controller; wherein the electric control box is provided with an air inlet hole and an air outlet hole, a heat dissipation air duct being formed between the air inlet hole and the air outlet hole in the electric control box, and the electric control box is arranged in the outer shell; the air inlet hole is close to the indoor air return, and the air outlet hole is close to the exhaust air heat exchange flow channel. 3.The indoor unit of the air conditioner according to claim 1 or 2, characterized by, The indoor air return flows into the outer shell, part of the airflow directly flows into the total heat exchange core, and the remaining part of the airflow flows into the electric control box through the air inlet hole and is discharged from the air outlet hole and then flows into the total heat exchange core. 4.The indoor unit of the air conditioner according to claim 1 or 2, characterized by, The outer shell is further provided with a first partition plate, one end of the first partition plate is connected with the total heat exchange core, and the first partition plate separates the two fan assemblies; the outer shell is further provided with a second partition plate, one end of the second partition plate is connected with the total heat exchange core, and the second partition plate separates the indoor air outlet and the indoor air return; the total heat exchange core separates the outdoor air outlet and the outdoor air inlet. 5.The indoor unit of the air conditioner according to claim 4, characterized by, The second partition plate is provided with a communication hole, the communication hole is provided with a damper, the communication hole is configured to communicate the indoor air outlet and the indoor air return, and the damper is configured to open and close the communication hole. 6.The indoor unit of the air conditioner according to claim 5, characterized by, The air inlet hole is arranged on the end face of the electric control box opposite to the indoor air return, and the air outlet hole is arranged on the side wall of the electric control box opposite to the second partition plate. The air flow from the indoor return air outlet into the shell, part of the air flow directly flows into the communication port, and the remaining part of the air flow flows into the electric control box through the air inlet hole and is discharged from the air outlet hole and flows into the communication port. 7.The indoor unit of the air conditioner according to claim 6, characterized by, The air inlet hole is arranged away from the air outlet hole; And / or, the air inlet hole and the air outlet hole are arranged at the bottom of the electric control box. 8.The indoor unit of the air conditioner according to claim 1 or 2, characterized by, A first fireproof plate is further arranged on the electric control box, the first fireproof plate covers the outside of the air inlet hole, and an air inlet interval is formed between the first fireproof plate and the electric control box. 9.The indoor unit of the air conditioner according to claim 1 or 2, characterized by, A second fireproof plate is further arranged on the electric control box, the second fireproof plate covers the outside of the air outlet hole, and an air outlet interval is formed between the second fireproof plate and the electric control box. 10.The indoor unit of the air conditioner according to claim 1 or 2, characterized by, A wiring terminal is further arranged on the electric control box, the wiring terminal is exposed outside the electric control box, and the wiring terminal is electrically connected with the electric controller.

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