Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises an outer shell, a total heat exchange core body, a heat exchanger and two fan assemblies, an interval is formed between an installation support and a top plate of the outer shell, a fan is provided with a centrifugal fan, a ventilation notch is further formed in the installation support, and the total heat exchange core body is arranged in the ventilation notch. The ventilation notch is configured to allow airflow to flow between the upper portion and the lower portion of the mounting support. The air supply efficiency of the air conditioner indoor unit 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 conditioner 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] For example, Chinese patent publication No. CN217274484U discloses an air conditioner all-in-one machine, which is arranged with full heat exchange core, heat exchanger, exhaust fan, supply fan and other related components in the shell. The exhaust fan is located in the exhaust passage for discharging the indoor air to the outdoor after heat exchange through the full heat exchange core. The supply fan is located in the fresh air passage for delivering the outdoor air to the indoor after heat exchange through the full heat exchange core.

[0004] The exhaust fan and the supply fan usually include a fan and a fan bracket. The fan bracket is usually made of sheet metal, which is fixedly installed in the shell to meet the installation requirements of the fan after installation. Since the sheet metal is usually in a regular square or rectangular structure, there is usually a certain gap between the sheet metal and the top plate of the shell to meet the requirements of the air inlet on both sides of the centrifugal fan. However, the sheet metal usually covers the installation area of the fan, which leads to the difference in air inlet amount on both sides of the fan bracket, and thus reduces the air supply efficiency of the fan. In view of this, how to design a technology to improve the air supply efficiency of the fan is the technical problem to be solved by the utility model.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and 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 technology, the utility model provides an air conditioner indoor unit to improve the air supply efficiency of the air conditioner indoor unit.

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

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

[0009] A shell is provided with an indoor air outlet, an indoor return air inlet, an outdoor air outlet and an outdoor air inlet. A fresh air passage is formed between the indoor air outlet and the outdoor air inlet. An exhaust passage is formed between the indoor return air inlet and the outdoor air outlet.

[0010] a total heat exchange core arranged in the shell, configured to perform heat exchange treatment on the air flow flowing through the fresh air channel and the air flow flowing through the exhaust air channel;

[0011] a heat exchanger configured to perform heat exchange treatment on the air flow flowing through the fresh air channel;

[0012] two fan assemblies, each including a mounting bracket and a fan arranged on the mounting bracket; one of the fan assemblies is arranged in the fresh air channel, and the other of the fan assemblies is arranged in the exhaust air channel;

[0013] wherein a space is formed between the mounting bracket and a top plate of the shell, the fan is provided with a centrifugal fan, and the mounting bracket is further provided with a ventilation gap configured to allow air flow between the upper side and the lower side of the mounting bracket.

[0014] By arranging the ventilation gap on the mounting bracket, the upper side and the lower side of the mounting bracket can communicate with each other through the ventilation gap, so that the air flow distribution on both sides of the mounting bracket can be balanced during the operation of the fan, so that the air inlet on both sides of the fan is more uniform, thereby improving the air supply efficiency of the fan.

[0015] In an embodiment of the present application, the ventilation gap is arranged on the outer side of the fan and away from the total heat exchange core.

[0016] By arranging the ventilation gap on the outer side of the mounting bracket, a larger space is provided between the ventilation gap and the side wall of the shell to meet the requirement of ventilation on the upper and lower sides of the mounting bracket, and the ventilation gap is away from the total heat exchange core, so that sufficient negative pressure can be formed at the total heat exchange core to accelerate the flow speed of the air flow in the total heat exchange core.

[0017] In an embodiment of the present application, the mounting bracket is provided with an avoidance gap, the avoidance gap is arranged adjacent to the total heat exchange core, and the corresponding corner portion of the total heat exchange core is clamped between the two fans.

[0018] By arranging the avoidance gap on the mounting bracket, the corner portion of the total heat exchange core is inserted into the area between the two fans and connected with the first spacing plate, so that the total heat exchange core can be arranged closer to the fan, the components in the shell are more compactly distributed, and the overall structure is more compact, which is more conducive to the design requirement of compact overall structure to reduce the overall volume of the shell.

[0019] At the same time, since the total heat exchange core is closer to the inlet of the fan, it is more conducive to improve the negative pressure at the heat exchange core to accelerate the flow speed of the air flow in the total heat exchange core.

[0020] In an embodiment of the present application, the heat preservation frame is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port.

[0021] The heat preservation frame is arranged in the shell and abuts against the inner side wall of the shell, the first connecting port is connected with the indoor air outlet, the second connecting port is connected with the indoor air return port, the third connecting port is connected with the outdoor air inlet, and the fourth connecting port is connected with the outdoor air outlet.

[0022] The heat preservation frame is arranged in the shell and abuts against the inner side wall of the shell, the first connecting port is connected with the indoor air outlet, the second connecting port is connected with the indoor air return port, the third connecting port is connected with the outdoor air inlet, and the fourth connecting port is connected with the outdoor air outlet.

[0023] By adding the heat preservation frame in the shell, on the one hand, the side wall of the shell can be integrally heat-preserved by the heat preservation frame to meet the heat preservation and insulation requirements, the heat preservation frame is a whole structure, and gaps caused by a spliced structure are avoided, so that better heat preservation performance is achieved; and on the other hand, related components in the shell are installed in the heat preservation frame, so that the assembly accuracy and assembly consistency are improved, and the assembly efficiency is more favorable to be improved.

[0024] In an embodiment of the present application, a partition plate is arranged in the heat preservation frame, the partition plate is provided with a ventilation port, the partition plate covers the inner side of the first connecting port, the partition plate separates the first connecting port and the second connecting port, and the partition plate separates the heat preservation frame into a first installation area and a second installation area.

[0025] The first installation area is provided with the heat exchanger, and the second installation area is provided with the total heat exchange core and the fan assembly.

[0026] The outlet of one of the fans is connected with the fourth connecting port, and the outlet of the other fan is communicated with the first installation area through the ventilation port.

[0027] The heat exchanger is arranged between the ventilation port and the first connecting port.

[0028] The indoor air outlet and the indoor air return port are separated by the partition plate arranged in the heat preservation frame, meanwhile, the partition plate covers the area of the first connecting port to form a space for installing the heat exchanger, so that the airflow generated by the corresponding fan is blown to the heat exchanger through the ventilation port for heat exchange and then output from the indoor air outlet, to ensure that the airflow output from the indoor air outlet is fully heat-exchanged, thereby improving the heat exchange efficiency.

[0029] In an embodiment of the present application, the two fan assemblies are arranged side by side on one side of the shell.

[0030] The heat preservation frame is further provided with a first partition plate, and the first partition plate is located between the two fan assemblies.

[0031] By arranging two fan assemblies on the same side of the shell and spacing them apart by the first partition plate, the device layout inside the shell is more compact, so as to realize the compact design of the structure. At the same time, the first partition plate isolates the two fan assemblies, 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 exchanges heat well and the air paths do not affect each other.

[0032] In an embodiment of the present application, a second partition plate is further arranged in the heat preservation frame.

[0033] The second partition plate is arranged between the partition plate and the total heat exchange core.

[0034] The second partition plate is arranged between the partition plate and the total heat exchange core.

[0035] By arranging the second partition plate in the heat preservation frame, the second partition plate is connected between the partition plate and the total heat exchange core, and then the second partition plate isolates the exhaust air channel and the fresh air channel at the total heat exchange core, so as to ensure that the outdoor exhaust air and the indoor intake air do not affect each other. In addition, the communication port arranged on the second partition plate can communicate the exhaust air channel and the fresh air channel, and further the air door is used to control the opening and closing of the communication port, so as to realize the mutual communication between the indoor return air outlet and the indoor air outlet. When the indoor temperature does not reach the set temperature value, the indoor return air outlet and the indoor air outlet are communicated by opening the air door, so as to realize the rapid adjustment of the indoor temperature, thereby improving the user experience.

[0036] In an embodiment of the present application, a first mounting plate is arranged between the first end of the heat exchanger and the inner side wall adjacent to the heat preservation frame, and a second mounting plate is arranged between the second end of the heat exchanger and the heat preservation frame. The second mounting plate is inclined towards the direction of the indoor air outlet and is connected between the indoor air outlet and the indoor return air outlet.

[0037] By arranging the mounting plates at the two ends of the heat exchanger, a relatively closed air outlet area is formed between the heat exchanger and the indoor air outlet. In addition, the second mounting plate extends towards the direction of the indoor air outlet, and the second mounting plate can guide the airflow after heat exchange of the heat exchanger, so that the airflow after heat exchange can flow smoothly to the indoor air outlet.

[0038] In an embodiment of the present application, two first mounting portions are arranged on the heat preservation frame in a relative arrangement, and a first filter screen is arranged between the two first mounting portions.

[0039] The first filter screen is arranged between the total heat exchange core and the indoor return air outlet.

[0040] By incorporating a first filter, indoor air can be effectively filtered before entering the outer casing, providing dust protection for the total heat exchange core and thus extending its service life. Furthermore, the first mounting section on the insulation frame allows for convenient installation of the first filter, improving assembly ease.

[0041] In one embodiment of this application, the thermal insulation frame is provided with two second mounting portions arranged opposite to each other, and a second filter screen is provided between the two second mounting portions;

[0042] The second filter is disposed between the total heat exchange core and the outdoor air inlet.

[0043] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is one of the structural schematic diagrams of an embodiment of the indoor unit of the air conditioner according to this application;

[0046] Figure 2 This is a second structural schematic diagram of an embodiment of the indoor unit of the air conditioner according to this application;

[0047] Figure 3 This is the third structural schematic diagram of an embodiment of the indoor unit of the air conditioner in this application;

[0048] Figure 4 for Figure 1 One of the partial structural diagrams of an indoor unit of a central air conditioner;

[0049] Figure 5 for Figure 1 Partial structural schematic diagram of a central air conditioning indoor unit (Part 2);

[0050] Figure 6 for Figure 1 The third partial structural diagram of a central air conditioning indoor unit;

[0051] Figure 7 for Figure 4 Schematic diagram of the central insulation frame;

[0052] Figure 8 forFigure 4 Structure diagram of the fan assembly;

[0053] Figure 9 For Figure 4 Structure diagram of the fan assembly;

[0054] Figure 10 For Figure 6 Structure diagram of the threading plate.

[0055] Reference signs:

[0056] 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;

[0057] 151, folded edge; 161, air door; 171, first wiring part; 172, second wiring part;

[0058] 101, bearing part; 102, fixing part; 103, clamping groove;

[0059] 2, full-heat exchange core;

[0060] 3, fan assembly; 31, mounting bracket; 32, fan;

[0061] 311, ventilation gap; 312, avoidance gap; 313, bearing matching part; 314, fixing matching part;

[0062] 4, electric control box;

[0063] 5, heat exchanger; 51, first mounting plate; 52, second mounting plate; 53, drainage pump;

[0064] 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;

[0065] 651, ventilation port. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0067] 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. They 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. Therefore, they should not be construed as limitations on this application.

[0068] 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, "a plurality of" means two or more.

[0069] 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.

[0070] 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" of 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] Specifically, the total heat exchange core 2 is provided with an exhaust heat exchange channel and a fresh air heat exchange channel, and the exhaust heat exchange channel and the fresh air heat exchange channel conduct heat to each other; the indoor return air vent 12, the exhaust heat exchange channel, and the outdoor air outlet 13 form an exhaust channel in the outer shell 1, and the outdoor air inlet 14, the fresh air heat exchange channel, and the indoor air outlet 11 form a fresh air channel in the outer shell 1.

[0078] Heat exchanger 5, which is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct.

[0079] Specifically, the heat exchanger 5 can perform heat exchange treatment on the airflow flowing through the fresh air duct, and the heat-treated airflow will be output to the room through the indoor air outlet 11.

[0080] Two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct.

[0081] Specifically, two fan assemblies 3 are used to meet the driving requirements of indoor and outdoor air flow. One fan assembly 3 is disposed in the fresh air duct to allow fresh outdoor air to enter the housing 1, be heated by the total heat exchange core 2, and then be output from the indoor air outlet 11. The other fan assembly 3 is disposed in the exhaust air duct to allow stale indoor air to enter the housing 1, be heated by the total heat exchange core 2, and then be output from the outdoor air outlet 13.

[0082] In one embodiment of this application, in order to improve the ease of disassembly and assembly of the fan assembly 3, the installation method of the fan assembly 3 is structurally improved as follows.

[0083] like Figure 6 and Figure 8 As shown, the top plate of the outer casing 1 is provided with two sets of assembly units, each set of assembly units including a support part 101 and a fixing part 102; the mounting bracket 31 is provided with a support mating part 313 and a fixing mating part 314; the support mating part 313 is screwlessly assembled onto the support part 101, and the fixing mating part 314 is fixedly connected to the fixing part 102 by screws.

[0084] Specifically, the fan 32 is fixedly mounted on the top plate of the housing 1 via a mounting bracket 31. The top plate of the housing 1 is provided with a support portion 101 and a fixing portion 102. Correspondingly, the mounting bracket 31 is provided with a support mating portion 313 and a fixing mating portion 314. The support portion 101 and the support mating portion 313 cooperate to achieve screwless assembly, while the fixing portion 102 and the fixing mating portion 314 cooperate to be installed using screws.

[0085] Thus, in the actual assembly process, the mounting bracket 31 is first installed by fitting the bearing fitting part 313 with the bearing part 101, and then the fixing fitting part 314 is fixedly installed on the fixing part 102 by screws.

[0086] Similarly, during later maintenance, the screws between the fixing part 102 and the fixing mating part 314 can be removed first, and then the bearing mating part 313 can be separated from the bearing part 101, so that the fan assembly 3 can be removed from the housing 1.

[0087] By providing two sets of assembly units on the outer casing 1, the bearing part 101 in the assembly unit can be connected to the bearing mating part 313 on the mounting bracket 31 without screws, while the fixing part 102 in the assembly unit can be connected to the fixing mating part 314 on the mounting bracket 31 with screws. In this way, during the actual assembly process, the operator can reduce the number of screws used by cooperating the bearing mating part 313 with the bearing part 101. Only a small number of screws are needed to fix the fixing part 102 and the fixing mating part 314 together to complete the assembly. Similarly, during the later maintenance process, the operator only needs to remove a small number of screws to remove the fan assembly 3 from the outer casing 1, thereby reducing the difficulty of disassembly and assembly and improving the convenience of maintenance.

[0088] In one embodiment, the bearing mating part 313 is slidably mounted on the bearing part 101.

[0089] Specifically, the bearing mating part 313 and the bearing part 101 can be mated by a sliding connection, and the specific mating structure can be a conventional sliding installation structure such as a slide rail and a slide groove.

[0090] In this way, during the assembly process, the bearing mating part 313 is slidably assembled onto the bearing part 101, and then the fixing part 102 and the fixing mating part 314 are tightened and fixed by screws.

[0091] In some embodiments, the physical manifestation of the fixing part 102 can be a screw hole, and the physical manifestation of the fixing mating part 314 can be a fixing hole, which will not be elaborated or limited here.

[0092] In one embodiment, the bearing mating part 313 overlaps the bearing part 101.

[0093] Specifically, the cooperation between the bearing mating part 313 and the bearing part 101 can be an overlapping method. The specific cooperation structure can be that the bearing mating part 313 is an overlapping plate extending out of the mounting bracket 31, and the bearing part 101 can be a hanging plate formed on the top plate of the outer shell 1, with the overlapping plate overlapping the hanging plate.

[0094] In one embodiment, the bearing mating part 313 is inserted into the bearing part 101.

[0095] Specifically, the cooperation between the bearing mating part 313 and the bearing part 101 can be by plugging in. The specific cooperation structure can be that the bearing mating part 313 is a plug plate extending out of the mounting bracket 31, and the bearing part 101 can be a slot formed on the top plate of the outer casing 1, with the plug plate inserted into the slot.

[0096] In one embodiment, in order to achieve a compact design, the two fan assemblies 3 are arranged side by side on one side of the housing 1;

[0097] A first partition plate 15 is provided between the two fan assemblies 3, and the assembly units are respectively provided on both sides of the first partition plate 15. The first partition plate 15 is located between the side wall of the outer casing 1 and the total heat exchange core 2.

[0098] Specifically, the two fan assemblies 3 are arranged on the same side of the housing 1, which facilitates rapid assembly of the two fan assemblies 3 in the same direction during the assembly process. Furthermore, the two fan assemblies 3 are separated by a first partition plate 15 so that the two fan assemblies 3 do not interfere with each other during operation.

[0099] By arranging the two fan assemblies 3 on the same side of the housing 1 and separating them by the first partition plate 15, the internal component layout of the housing 1 is made more compact, thus achieving a compact structural design. At the same time, the first partition plate 15 separates the two fan assemblies 3, thereby achieving mutual isolation between the fresh air channel and the exhaust air channel, ensuring good heat exchange between the incoming and outgoing air inside and outside the housing 1 and that the air paths do not interfere with each other.

[0100] In one embodiment, the two fan assemblies 3 are arranged side by side between the indoor air outlet 11 and the outdoor air outlet 13;

[0101] The outlet of one of the fans 32 is connected to the outdoor air outlet 13, and the outlet of the other fan 32 is connected to the indoor air outlet 11.

[0102] Specifically, two fan assemblies 3 are arranged on the same side of the housing 1 and located between the indoor air outlet 11 and the outdoor air outlet 13; thus, the fan assembly 3 adjacent to the indoor air outlet 11 is used to drive airflow in the fresh air duct, and the fan assembly 3 adjacent to the outdoor air outlet 13 is used to drive airflow in the exhaust air duct.

[0103] By arranging the fan assembly 3 between the indoor air outlet 11 and the outdoor air outlet 13, the air output to the outside can be efficiently discharged to the outside through the outdoor air outlet 13 under the action of the corresponding fan 32. Similarly, the air output to the inside can be efficiently transported to the inside under the action of the corresponding fan 32, thereby increasing the indoor air volume, reducing the air resistance of the fan 32, and improving the air supply efficiency.

[0104] In one embodiment, the heat exchanger 5 is disposed between the indoor air outlet 11 and the corresponding outlet of the fan 32.

[0105] Specifically, the heat exchanger 5 is installed between the indoor air outlet 11 and the corresponding fan 32, so that the airflow output by the fan 32 blows directly onto the heat exchanger 5.

[0106] By placing the heat exchanger 5 between the indoor air outlet 11 and the outlet of the fan 32, the airflow output from the outlet of the fan 32 blows directly onto the heat exchanger 5, thereby improving the heat exchange efficiency between the airflow and the heat exchanger 5, and thus improving the heat exchange efficiency of the indoor unit of the air conditioner.

[0107] In one embodiment, a partition plate 65 is further provided in the outer casing 1, and a vent 651 is provided on the partition plate 65. The partition plate 65 covers the inner side of the indoor air outlet 11 inside the outer casing 1. The partition plate 65 separates the indoor air outlet 11 and the indoor return air outlet 12. The indoor air outlet 11 is connected to the outlet of the corresponding fan 32 through the vent 651. The heat exchanger 5 is located between the vent 651 and the indoor air outlet 11.

[0108] Specifically, the partition plate 65 provided in the outer casing 1 can form a space for installing the heat exchanger 5 around 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 from the fresh air duct can effectively exchange heat with the heat exchanger 5.

[0109] By setting a partition plate 65 in the outer casing 1 to separate the indoor air outlet 11 and the indoor air return outlet 12, 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 through the vent 651 for heat exchange and then output from the indoor air outlet 11, ensuring that the airflow output from the indoor air outlet 11 receives sufficient heat exchange, thereby improving the heat exchange efficiency.

[0110] In one embodiment, a second spacer 16 is further provided in the outer shell 1; the second spacer 16 is disposed between the partition plate 65 and the total heat exchange core 2.

[0111] Specifically, by further setting a second partition plate 16 in the outer casing 1, the second partition plate 16 isolates the ports of the exhaust heat exchange channel and the fresh air heat exchange channel of the total heat exchange core 2 adjacent to the indoor side from each other, so as to meet the installation requirements of the total heat exchange core 2.

[0112] 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, and the corner facing the fan assembly 3 side is separated by the first partition plate 15. The other two corners of the total heat exchange core 2 can be connected to the corresponding side wall of the outer shell 1 using conventional installation methods, so as to ultimately achieve mutual isolation between the exhaust duct and the fresh air duct.

[0113] In one embodiment of this application, such as Figure 5 , Figure 8 and Figure 9 As shown, in order to improve the air delivery efficiency of fan 32, the following structural improvements are made to the indoor unit of the air conditioner.

[0114] 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.

[0115] An indoor unit for an air conditioner includes a total heat exchange core 2, which is disposed in the outer casing 1 and 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.

[0116] An indoor unit for air conditioning includes a heat exchanger 5, which is configured to exchange heat with the airflow passing through the fresh air duct.

[0117] An indoor air conditioning unit includes two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct.

[0118] The mounting bracket 31 is spaced apart from the top plate of the outer casing 1. The fan 32 is equipped with a centrifugal fan. The mounting bracket 31 is also provided with a ventilation notch 311, which is configured to allow airflow to flow between the top and bottom of the mounting bracket 31.

[0119] Specifically, for the fan assembly 3, the fan 32 can be a centrifugal fan and is fixedly mounted on the top of the housing 1 by the mounting bracket 31. There is a gap between the mounting bracket 31 and the top plate of the housing 1, so that during the operation of the fan 32, the airflow entering and exiting the total heat exchange core 2 will flow to the upper and lower surfaces of the mounting bracket 31 respectively.

[0120] A ventilation notch 311 is provided on the mounting bracket 31. The ventilation notch 311 connects the upper and lower spaces of the mounting bracket 31. During the operation of the centrifugal fan, when there is a large difference in the air intake volume between the two inlets of the centrifugal fan, the air in the upper and lower layers of the mounting bracket 31 can flow back and forth to automatically balance the air intake volume of the two inlets of the centrifugal fan.

[0121] By providing ventilation gaps 311 on the mounting bracket 31, the upper and lower sides of the mounting bracket 31 can be connected to each other through the ventilation gaps 311. In this way, during the operation of the fan 32, the airflow distribution on both sides of the mounting bracket 31 can be balanced, so that the air intake on both sides of the fan 32 is more uniform, thereby improving the air delivery efficiency of the fan 32.

[0122] In one embodiment, the ventilation opening 311 is arranged on the outside of the fan 32 and away from the total heat exchange core 2.

[0123] Specifically, the ventilation opening 311 is located near the side wall of the outer casing 1, and in order to meet the requirements of the mounting bracket 31 supporting the installation of the fan 32, the ventilation opening 311 is also located on the outside of the fan 32.

[0124] Since the ventilation opening 311 is close to the side wall of the housing 1 and far away from the total heat exchange core 2, it can reduce the area of ​​poor ventilation that is generated near the side wall of the housing 1.

[0125] By providing a ventilation gap 311 at the location of the mounting bracket 31 outside the fan 32, a large space is provided between the ventilation gap 311 and the side wall of the outer casing 1 to meet the vertical ventilation requirements of the mounting bracket 31. At the same time, the ventilation gap 311 is far 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 air in the total heat exchange core 2.

[0126] In one embodiment, the mounting bracket 31 is provided with an avoidance notch 312, the avoidance notch 312 is arranged adjacent to the total heat exchange core 2, and the corresponding corner of the total heat exchange core 2 is sandwiched between the two fans 32.

[0127] Specifically, in order to achieve the requirement of compact installation of internal components of the housing 1, a clearance notch 312 is provided on the mounting bracket 31. The design of the clearance notch 312 allows the heat exchange core 2 to use the space provided by the clearance notch 312 to get closer to the fan 32, so as to achieve a compact structural design inside the housing 1.

[0128] By providing a clearance notch 312 on the mounting bracket 31, the corner of the total heat exchange core 2 will be inserted into the area between the two fans 32 and connected to the first partition plate 15, so that the total heat exchange core 2 can be arranged closer to the fans 32, the components in the housing 1 are more compactly distributed, which is more conducive to the design requirements of overall structural compactness, so as to reduce the overall volume of the housing 1.

[0129] Meanwhile, since the total heat exchange core 2 is closer to the inlet of the fan 32, it is more conducive to increasing the negative pressure at the heat exchange core, so as to accelerate the flow speed of the air in the total heat exchange core 2.

[0130] In one embodiment of this application, as Figures 4-7 As shown, in order to improve the assembly efficiency of the insulation structure installed inside the outer casing 1, the following structural improvements are made to the indoor unit of the air conditioner.

[0131] The indoor unit of the air conditioner includes 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.

[0132] 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.

[0133] The indoor unit of the air conditioner includes a heat exchanger 5, which is configured to exchange heat with the airflow passing through the fresh air duct.

[0134] The indoor unit of the air conditioner includes two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct.

[0135] The indoor unit of the air conditioner includes an insulation frame 6, on which a first connection port 61, a second connection port 62, a third connection port 63 and a fourth connection port 64 are provided;

[0136] The thermal insulation frame 6 is disposed in the outer shell 1 and abuts against the inner side wall of the outer shell 1. The first connection port 61 is connected to the indoor air outlet 11, the second connection port 62 is connected to the indoor return air outlet 12, the third connection port 63 is connected to the outdoor air inlet 14, and the fourth connection port 64 is connected to the outdoor air outlet 13.

[0137] Specifically, when the side walls of the outer shell 1 need to be insulated, the integrated insulation frame 6 can be placed into the outer shell 1. The four sides of the insulation frame 6 will be attached to the corresponding inner side walls of the outer shell 1. Thus, by simply placing the entire insulation frame 6 into the outer shell 1, the four sides of the outer shell 1 can be insulated.

[0138] By adding an insulation frame 6 to the outer shell 1, the side wall of the outer shell 1 can be insulated as a whole to meet the requirements of thermal insulation. The insulation frame 6 is an integral structure, which avoids gaps caused by the assembly structure and has better thermal insulation performance. The relevant components in the outer shell 1 are installed in the insulation frame 6 to improve the accuracy and consistency of assembly, which is more conducive to improving assembly efficiency.

[0139] In one embodiment, the thermal insulation frame 6 is provided with a partition plate 65, and the partition plate 65 is provided with a ventilation opening 651. The partition plate 65 covers the inside of the first connection port 61, and the partition plate 65 separates the first connection port 61 and the second connection port 62. The partition plate 65 divides the thermal insulation frame 6 into a first installation area and a second installation area.

[0140] The heat exchanger 5 is provided in the first installation area, and the total heat exchange core 2 and the fan assembly 3 are provided in the second installation area;

[0141] The outlet of one of the fans 32 is connected to the fourth connection port 64, and the outlet of the other fan 32 is connected to the first installation area through the ventilation port 651.

[0142] The heat exchanger 5 is arranged between the vent 651 and the first connection port 61.

[0143] Specifically, since the insulation frame 6 is built into the outer shell 1, the relevant components in the outer shell 1 are also surrounded by the insulation frame 6. In order to enable the installation of different components in different areas, partitions 65 can also be set in the insulation shelf.

[0144] The partition plate 65 and the insulated shelf are integrated into one structure. Under the action of the partition plate 65, the insulated frame 6 forms a first installation area and a second installation area that are separated from each other. The first installation area is used to install the heat exchanger 5 so that the airflow entering the room can have good heat exchange with the heat exchanger 5, thereby improving the heat exchange efficiency.

[0145] By setting a partition plate 65 in the insulation frame 6, the insulation frame 6 is divided into two installation areas for installing relevant components in the outer shell 1 respectively, so as to improve the accuracy and consistency of assembly and improve the assembly efficiency.

[0146] In one embodiment, for components such as the fan assembly 3, the heat exchange core 2, and the electrical control box 4 that are installed in the second installation area, based on the description in the above embodiment, a first partition plate 15 and a second partition plate 16 can be provided in the second installation area during the actual assembly process.

[0147] Specifically, the two fan assemblies 3 are arranged side by side on one side of the housing 1; a first partition plate 15 is also provided in the housing 1, the first partition plate 15 is located between the two fan assemblies 3; the inner wall of the heat insulation frame 6 is also provided with a positioning groove 66, the end of the first partition plate 15 is inserted into the positioning groove 66; the first partition plate 15 is disposed between the positioning groove 66 and the total heat exchange core 2.

[0148] By providing a positioning groove 66, during the installation of the first partition plate 15, the end of the first partition plate 15 can be inserted into the positioning groove 66, so as to pre-assemble the first partition plate 15 onto the outer shell 1. This can effectively reduce the amount of screws used when fixing the first partition plate 15, thereby improving the efficiency of disassembly and assembly.

[0149] In one 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 is attached to the top plate of the outer shell 1 and is locked in the slot 103, and the folded edge 151 is fixedly connected to the top plate of the outer shell 1 by screws.

[0150] Specifically, for the first partition plate 15, in order to facilitate quick installation by the operator, the end of the first partition plate 15 can be inserted into the positioning groove 66, and the folded edge 151 can be inserted into the slot 103 provided on the top plate of the outer casing 1 at the same time. In this way, the positioning groove 66 and the slot 103 can cooperate to achieve the pre-positioning and assembly of the first partition plate 15. Finally, the folded edge 151 is fixed to the top plate of the outer casing 1 by a single screw.

[0151] By providing a slot 103 on the outer casing 1, during the installation of the first partition plate 15, the folded edge 151 of the first partition plate 15 will be inserted into the slot 103, thereby pre-assembling the first partition plate 15 onto the outer casing 1. Then, the folded edge 151 is fixedly installed on the top plate of the outer casing 1 by a screw to achieve the fixed installation of the first partition plate 15. In this way, the number of screws used during the fixed installation of the first partition plate 15 can be effectively reduced, thereby improving the efficiency of disassembly and assembly.

[0152] In another embodiment, the second spacer 16 is disposed between the partition plate 65 and the total heat exchange core 2.

[0153] Specifically, by setting a second partition plate 16 in the outer casing 1, the second partition plate 16 is connected between the partition plate 65 and the total heat exchange core 2, thereby using the second partition plate 16 to isolate the exhaust air channel and the fresh air channel at the total heat exchange core 2, so as to ensure that the outdoor exhaust air and the indoor air intake air do not affect each other.

[0154] In one embodiment, in order to extend the service life of the total heat exchange core 2, the heat insulation frame 6 is provided with two first mounting parts 67 arranged opposite to each other, and a first filter screen 18 is provided between the two first mounting parts 67.

[0155] The first filter 18 is disposed between the total heat exchange core 2 and the indoor return air vent 12.

[0156] Specifically, the first filter 18 is installed and fixed through two first mounting parts 67 formed in the insulation frame 6. The first filter 18 can filter the air input into the outer shell 1 from the indoor return air vent 12, and then the filtered air enters the total heat exchange core 2.

[0157] The first mounting part 67 can be a physical entity that assembles the first filter screen 18 into place by means of screw fixing or other methods, or it can be a structure such as a slot to meet the installation requirements of the first filter screen 18.

[0158] By setting the first filter 18, the indoor air can be effectively filtered after entering the outer casing 1, thus protecting the total heat exchange core from dust and extending its service life. The first mounting part 67 on the insulation frame 6 allows for easy installation of the first filter 18, improving assembly convenience.

[0159] In one embodiment, the thermal insulation frame 6 is provided with two second mounting parts 68 arranged opposite to each other, and a second filter screen 19 is provided between the two second mounting parts 68;

[0160] The second filter 19 is disposed between the total heat exchange core 2 and the outdoor air inlet 14.

[0161] Specifically, after outdoor air enters the outer casing 1, it is first filtered by the second filter 19 before flowing into the total heat exchange core 2.

[0162] The second mounting part 68 can be used to assemble the second filter screen 19 into place by means of screw fixing or other methods, or it can be a structure such as a slot to meet the installation requirements of the second filter screen 19.

[0163] By setting the second filter 19, outdoor air can be effectively filtered after entering the outer casing 1, thus protecting the total heat exchange core from dust and extending its service life. The second mounting part 68 on the insulation frame 6 allows for easy installation of the second filter 19, improving assembly convenience.

[0164] In another embodiment, in order to improve the heat exchange efficiency between the heat exchanger 5 and the airflow, a first mounting plate 51 is provided between the first end of the heat exchanger 5 and the inner sidewall adjacent to the insulation frame 6, and a second mounting plate 52 is provided between the second end of the heat exchanger 5 and the insulation frame 6. The second mounting plate 52 is inclined toward the indoor air outlet 11 and connected between the indoor air outlet 11 and the indoor return air outlet 12.

[0165] Specifically, the heat exchanger 5 is fixedly installed in the first installation area by the mounting plates on both sides. The first mounting plate 51 and the second mounting plate 52 can provide good fixation and support for the heat exchanger 5 on both sides.

[0166] In addition, the second mounting plate 52 extends to the indoor air outlet 11. The inclined second mounting plate 52 can guide the airflow after heat exchange by the heat exchanger 5, so that the airflow can quickly flow to the indoor air outlet 11.

[0167] By providing mounting plates at both ends of the heat exchanger 5, a relatively enclosed air outlet area is formed between the heat exchanger 5 and the indoor air outlet 11. Furthermore, the second mounting plate 52 extends obliquely toward the indoor air outlet 11. The second mounting plate 52 can guide the airflow after heat exchange by the heat exchanger 5, so that the airflow after heat exchange can flow smoothly to the indoor air outlet 11.

[0168] In one embodiment, a water receiving tray (not shown) is also provided in the outer casing 1, the water receiving tray being located in the first installation area and arranged below the heat exchanger 5.

[0169] Specifically, the water receiving tray will be installed in the first installation area. The water receiving tray and the top plate of the outer shell 1 form a relatively closed heat exchange cavity in the first installation area, so that the airflow entering the heat exchange cavity can exchange heat with the heat exchanger 5 in a good manner.

[0170] Meanwhile, the drip tray can collect the defrosting water from heat exchanger 5.

[0171] In addition, a drain pump 53 is provided in the outer casing 1. The drain pump 53 is arranged above the water receiving tray and between the second mounting plate 52 and the partition plate 65.

[0172] By setting a water collection tray at the bottom of the first installation area to meet the requirements for condensate collection on the evaporator, and arranging the drain pump 53 on the outside of the second installation plate 52, the airflow after heat exchange by the heat exchanger 5 is reduced from being blocked by the drain pump 53 on its way to the indoor air outlet 11, thus reducing the wind resistance at the indoor air outlet 11 and improving the air outlet efficiency.

[0173] In one embodiment of this application, as Figures 4-7 As shown, in order to achieve a compact overall structure, corresponding improvements were made to the design of the air conditioner indoor unit, as detailed below.

[0174] The indoor unit of the air conditioner includes 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.

[0175] 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.

[0176] The indoor unit of the air conditioner includes a heat exchanger 5, which is configured to exchange heat with the airflow flowing through the fresh air duct.

[0177] The indoor unit of the air conditioner includes two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct;

[0178] The outer casing 1 has a first installation area and a second installation area. The heat exchanger 5 is disposed in the first installation area, and the fan assembly 3 and the total heat exchange core 2 are disposed in the second installation area. The indoor air outlet 11 is connected to the first installation area, and the indoor return air outlet 12, the outdoor air outlet 13 and the outdoor air inlet 14 are connected to the second installation area. The first installation area extends to the indoor return air outlet 12 and partially covers the indoor return air outlet 12 inside the outer casing 1.

[0179] Specifically, because the indoor unit of the air conditioner centrally houses the heat exchanger 5 and the total heat exchange core 2, the number of components inside the outer casing 1 is relatively large. The distance between the indoor return air vent 12 and the indoor water outlet on the outer casing 1 must meet the connection requirements of the user's home piping; therefore, the distance cannot be too small. To make the structure more compact, part of the area of ​​the indoor return air vent 12 can be occupied inside the outer casing 1 to meet the installation requirements of the relevant components.

[0180] Specifically, the first installation area extends to the indoor return air vent 12 and partially covers the indoor return air vent 12 inside the outer casing 1. This further increases the length of the first installation area, allowing components such as the heat exchanger 5 and the drain pump 53 to be installed in the first installation area. Furthermore, it ensures that the heat exchanger 5 has a sufficiently large heat exchange area while maintaining a compact structural design.

[0181] By setting independent first and second installation areas in the outer casing 1, the first installation area is used to meet the installation requirements of the heat exchanger 5. At the same time, in order to meet the compact design requirements of the internal structure of the outer casing 1 and the heat exchanger 5's heat exchange area requirements, the first installation area will occupy part of the area where the indoor return air vent 12 is located, so that part of the indoor return air vent 12 is blocked by the first installation area. In this way, the area between the indoor return air vent 12 and the indoor air outlet vent 11 can be fully utilized to increase the size of the first installation area, so as to meet the installation requirements of the heat exchanger 5 with a larger 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 requirements of the internal structure of the outer casing 1 can be met, thereby reducing the overall size of the air conditioner.

[0182] In one embodiment, based on the above embodiment, the insulation frame 6 is divided into a first installation area and a second installation area by a partition plate 65;

[0183] The insulation frame 6 will partially block the indoor return air vent 12 inside the outer shell 1.

[0184] Specifically, by adding an insulation frame 6 to the outer shell 1, on the one hand, the insulation frame 6 can provide integrated insulation for the side walls of the outer shell 1, thereby meeting the requirements for thermal insulation. The insulation frame 6 is an integral structure, avoiding gaps caused by the assembly structure and having better insulation performance. On the other hand, the partition plate 65 in the insulation frame 6 divides the insulation frame 6 into two installation areas for installing relevant components in the outer shell 1 respectively, thereby improving the accuracy and consistency of assembly and further improving assembly efficiency.

[0185] In one embodiment, the ventilation area of ​​the second connection port 62 is smaller than the ventilation area of ​​the indoor return air vent 12;

[0186] The insulation frame 6 partially blocks the indoor return air vent 12 inside the outer shell 1.

[0187] Specifically, by designing the ventilation area of ​​the second connection port 62 to be smaller than that of the indoor return air port 12, the length of the first installation area can be extended inside the outer shell 1 through the insulation frame 6 to meet the installation requirements of the heat exchanger 5 and achieve a compact structural design.

[0188] The area of ​​the indoor return air vent 12 that is blocked by the insulation frame 6 and the ratio of the total open area of ​​the indoor return air vent 12 can be obtained by testing according to different air supply requirements, as long as the requirements of the return air volume of the indoor air conditioning unit are met, and no restrictions are imposed here.

[0189] In another embodiment of this application, such as Figure 6 and Figure 10 As shown, in order to achieve the separation of strong and weak current in the relevant electrical components in the casing 1, the following structural improvements are made to the indoor unit of the air conditioner.

[0190] In one embodiment of this application, the indoor unit of the air conditioner includes a housing 1. The housing 1 is provided with an indoor air outlet 11, an indoor return air outlet 12, an outdoor air outlet 13, and an outdoor air inlet 14. 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. The outdoor air outlet 13 and the outdoor air inlet 14 are respectively provided with air valves (not marked).

[0191] 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.

[0192] The indoor unit of the air conditioner includes two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct.

[0193] The indoor unit of the air conditioner includes an electrical control box 4, which contains an electrical controller and is mounted on the outer casing 1.

[0194] The outer casing 1 is provided with a first wiring section 171, through which the cable of the air valve is routed and extended. The cable of the air valve extends from the first end of the electrical control box 4 into the electrical control box 4 and is electrically connected to the electrical controller. The cable of the fan 32 is arranged outside the first wiring section 171 and extends from the second end of the electrical control box 4 into the electrical control box 4 and is electrically connected to the electrical controller. The first end and the second end of the electrical control box 4 are arranged opposite to each other.

[0195] Specifically, the outer casing 1 is provided with a first wiring section 171, which can form a cable routing channel for the air supply valve. Furthermore, under the action of the first wiring section 171, the cable of the air valve can be isolated from the cable on the fan 32.

[0196] In addition, the cables of the air valve and the fan 32 extend from different ends of the electrical control box 4 into the electrical control box 4, which more effectively separates the strong and weak currents.

[0197] This avoids the cable of the fan 32 from crossing with the cable of the air valve during the wiring process of the outer casing 1, which would otherwise result in the mixing of strong and weak current.

[0198] Since the strong and weak current cables are isolated from each other, especially the cable of the air valve is protected by separate wiring through the first wiring section 171, the safety of use can be improved.

[0199] By providing independent first wiring sections 171 in the outer casing 1, the cable of the air valve is routed separately as a low-voltage cable through the first wiring section 171, the cable of the air guide valve enters the electrical control box 4 from the first end of the electrical control box 4, and the cable of the fan 32 is routed outside the first wiring section 171 to isolate it from the cable of the air valve. Furthermore, the cable of the fan 32 enters the electrical control box 4 from the second end of the electrical control box 4 to achieve effective separation of strong and weak currents, thereby improving the safety and reliability of the air conditioner indoor unit.

[0200] In another embodiment of this application, the outer casing 1 is provided with a first wiring section 171 and a second wiring section 172, which are isolated from each other. The cable of the air valve is routed through the first wiring section 171 and extends into the electrical control box 4 to be electrically connected to the electrical controller. The cable of the fan 32 is routed through the second wiring section 172 and extends into the electrical control box 4 to be electrically connected to the electrical controller.

[0201] Specifically, in order to simultaneously guide and protect the cables of the air valve and the fan 32, a first wiring section 171 and a second wiring section 172 can be provided in the housing 1. The first wiring section 171 and the second wiring section 172 are completely separated, with sufficient safety distance between them to avoid mutual interference between the high-voltage and low-voltage cables.

[0202] By providing independent first wiring section 171 and second wiring section 172 in the outer casing 1, the cable of the air valve is routed through the first wiring section 171 and guided to extend into the electrical control box 4. Similarly, the cable of the fan 32 is routed through the second wiring section 172 and guided to extend into the electrical control box 4. In this way, the cables of the air valve and the fan 32 are separated from each other, so as to achieve the separation of strong and weak current. On the one hand, the cable routing in the outer casing 1 is more orderly, and on the other hand, it can avoid safety hazards caused by the crossing of strong and weak current, thereby improving the safety and reliability of the air conditioner indoor unit.

[0203] In one embodiment, the first wiring portion 171 is arranged between the top plate of the total heat exchange core 2 and the outer casing 1.

[0204] Specifically, the first wiring section 171 can guide the extension wiring of the damper's cable between the heat exchange core 2 and the top plate of the outer casing 1. In this way, the space between the heat exchange core 2 and the outer casing 1 can be fully utilized to route the damper's cable. On the one hand, this allows the damper's cable to be routed closer to the electrical control box 4. On the other hand, the heat exchange core 2 can shield the damper's cable to organize the wiring harness.

[0205] By placing the first wiring section 171 between the top plate of the heat exchange core 2 and the outer casing 1, the space between the heat exchange core 2 and the top plate of the outer casing 1 can be fully utilized for wiring, thereby eliminating the need for long-distance wiring along the side wall of the outer casing 1 and effectively saving the amount of cable used.

[0206] In one embodiment, two of the fan assemblies 3 are arranged side by side on one side of the housing 1.

[0207] Specifically, by arranging the two fan assemblies 3 on the same side of the housing 1, the cables of the two fans 32 can be wired together, which simplifies the operation of wiring the two fans 32 separately and improves assembly efficiency.

[0208] Furthermore, the two fans 32 are arranged side by side, which facilitates the wiring of the fans 32 together and realizes the neat design of the power cable harness.

[0209] In one embodiment, the electrical control box 4 is disposed in the exhaust duct, and the electrical control box 4 is located on the side of the total heat exchange core 2.

[0210] Specifically, the electrical control box 4 is installed in the exhaust duct formed in the outer casing 1, utilizing the space of the exhaust duct. Simultaneously, within the exhaust duct, the heat generated by the electrical controller within the electrical control box 4 can be carried away by the airflow within the exhaust duct, thus achieving heat dissipation.

[0211] In addition, since the electrical control box 4 is located on one side of the total heat exchange core 2, the cable of the air valve can enter the electrical control box 4 after passing through the total heat exchange core 2, thereby shortening the wiring length.

[0212] By placing the electrical control box 4 on the side of the total heat exchange core 2 and in the exhaust channel, the airflow in the exhaust channel is used to dissipate heat from the electrical control box 4. On the other hand, the cable can be directly extended to the electrical control box 4 on the side through the wiring above the total heat exchange core 2, thereby shortening the extension length of the cable.

[0213] In one embodiment, a wiring plate 17 is provided in the outer casing 1, and the wiring plate 17 is disposed between the total heat exchange core 2 and the top plate of the outer casing 1;

[0214] The wiring board 17 is provided with a first wiring groove, and the cable of the air valve is arranged in the first wiring groove, which is the first wiring section 171.

[0215] Specifically, in order to facilitate the formation of the first wiring section 171 in the housing 1, a separate wiring plate 17 can be used to form the first wiring section 171. The wiring plate 17 is provided with a first wiring groove for the air valve wiring, so as to restrict and guide the direction of the air valve cable through the first wiring groove. At the same time, the first wiring groove ensures that the air valve cable is independent of the fan 32 cable and does not cross contact.

[0216] During the assembly of the housing 1, the cable guide plate 17 will be placed against the top plate of the housing 1 and can be fixed to the top plate of the housing 1 with screws. The cable guide plate 17 is made of insulating material to improve the safety of cable wiring.

[0217] By setting a wiring plate 17 between the top plate of the total heat exchange core 2 and the outer shell 1, and setting a first wiring groove on the wiring plate 17 to meet the cable wiring requirements of the air valve, the function of the first wiring section 171 is realized.

[0218] In one embodiment, the wiring plate 17 is provided with a second wiring groove, which is arranged at intervals from the first wiring groove, and at least one cable of the fan 32 is disposed in the second wiring groove.

[0219] Specifically, in order to meet the wiring requirements of the fan 32 through the wiring board 17, a second wiring groove can be provided on the wiring board 17. The second wiring groove is isolated from the first wiring groove to achieve the separation of strong and weak current.

[0220] By providing a second wiring groove at an interval from the first wiring groove on the wiring plate 17, the second wiring groove can meet the wiring requirements of the fan 32's cables, thereby realizing the function of the second wiring section 172.

[0221] In one embodiment, wire clips are respectively provided in the first wiring slot and the second wiring slot.

[0222] Specifically, after the cables in the first and second wiring troughs are in place, cable clips can be used on the outside to limit the cables inside the wiring troughs, thereby preventing the cables from coming out of the wiring troughs.

[0223] By installing cable clips in the first and second wiring slots, the cable clips can confine the cables within the wiring slots to prevent them from slipping out, thereby improving the reliability of the wiring.

[0224] In one embodiment, when an insulation frame 6 is provided in the outer shell 1, a wiring trough 69 is also provided on the insulation frame 6 in the second installation area. The wiring trough 69 is arranged between the total heat exchange core 2 and the electrical control box 4; the cable of the air valve is also arranged in the wiring trough 69.

[0225] Specifically, after the air valve cable passes between the top plate of the total heat exchange core 2 and the outer shell 1, it is further guided to extend into the electrical control box 4 through the wiring groove 69 formed on the insulation frame 6.

[0226] By additionally providing a wiring trough 69 on the insulation frame 6, the wiring trough 69 can cooperate with the first wiring section 171 to route the cables of the air valve, thereby making full use of the structure of the insulation frame 6 itself to further meet the wiring requirements of the air valve cables and improve the wiring quality of the cables.

[0227] In one embodiment of this application, as Figures 4-6As shown, in order to meet the requirements of internal circulation airflow and simplify the structure inside the casing 1 to reduce assembly and manufacturing costs, the following improvements are made to the indoor unit of the air conditioner.

[0228] The air conditioner indoor unit provided in this application includes 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.

[0229] The indoor unit of the air conditioner includes a total heat exchange core 2, which is provided with an exhaust heat exchange channel and a fresh air heat exchange channel, and the exhaust heat exchange channel and the fresh air heat exchange channel conduct heat to each other; the indoor return air vent 12, the exhaust heat exchange channel and the outdoor air outlet vent 13 form an exhaust channel in the outer casing 1, and the outdoor air inlet vent 14, the fresh air heat exchange channel and the indoor air outlet vent 11 form a fresh air channel in the outer casing 1.

[0230] The indoor unit of the air conditioner includes a heat exchanger 5, which is configured to exchange heat with the airflow passing through the fresh air duct.

[0231] The indoor unit of the air conditioner includes two fan assemblies 3, each fan assembly 3 including a mounting bracket 31 and a fan 32, the fan 32 being mounted on the mounting bracket 31; one fan assembly 3 is disposed in the fresh air duct, and the other fan assembly 3 is disposed in the exhaust air duct.

[0232] A damper 161 is provided between the total heat exchange core 2 and the outer shell 1. The damper 161 is arranged between the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel. The damper 161 is configured to selectively connect the indoor air outlet 11 and the indoor return air outlet 12.

[0233] Specifically, in order to enable the indoor return air vent 12 and indoor air outlet 11 to be interconnected when the exhaust air duct and fresh air duct are in internal circulation, a damper 161 can be directly added between the inlet of the exhaust air heat exchange channel and the outlet of the fresh air heat exchange channel of the total heat exchange core 2.

[0234] When damper 161 is closed, indoor return air vent 12 and indoor air outlet vent 11 are isolated, thus isolating the exhaust duct and fresh air duct to meet the requirement of independent indoor and outdoor air intake and exhaust. At this time, the dampers of outdoor air inlet 14 and outdoor air outlet 13 are in the open state.

[0235] When internal circulation is required, the damper 161 can be opened. The damper 161 connects the indoor return air vent 12 and the indoor air outlet 11 at the total heat exchange core 2. At this time, the dampers of the outdoor air inlet 14 and the outdoor air outlet 13 are in the closed state.

[0236] By installing a damper 161 between the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel in the total heat exchange core 2, the damper 161 controls the interconnection between the indoor return air vent 12 and the indoor air outlet vent 11. This allows for rapid temperature adjustment when the indoor temperature has not reached the set value, by opening the damper 161 to connect the indoor return air vent 12 and the indoor air outlet vent 11, thereby improving the user experience. Furthermore, since the damper 161 is installed in the total heat exchange core 2 and separates the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel, there is no need to add an additional internal circulation duct, reducing the number of components used and lowering assembly and manufacturing costs.

[0237] In one embodiment, a first partition plate 15 is provided on one side of the outlet of the fresh air heat exchange channel of the total heat exchange core 2, and a second partition plate 16 is provided on the other side of the outlet of the fresh air heat exchange channel of the total heat exchange core 2.

[0238] The first partition 15 and the second partition 16 are configured to separate the exhaust duct and the fresh air duct. The first partition 15 is arranged between the indoor air outlet 11 and the outdoor air outlet 13, and the second partition 16 is also arranged between the indoor return air outlet 12 and the indoor air outlet 11.

[0239] The second partition plate 16 is provided with a communication port, and the damper 161 is disposed in the communication port.

[0240] Specifically, the first partition plate 15 and the second partition plate 16 can meet the installation requirements of installing the total heat exchange core 2 in the outer casing 1 and achieving mutual isolation between the exhaust air channel and the fresh air channel. The damper 161 is installed in the communication port on the second partition plate 16 to facilitate the installation of the damper 161 in the outer casing 1.

[0241] By setting the first partition plate 15 and the second partition plate 16, the exhaust air channel and the fresh air channel are separated at the outlet of the fresh air heat exchange channel by the total heat exchange core 2. At the same time, the connecting port set on the second partition plate 16 can meet the mutual connection between the exhaust air channel and the fresh air channel so that the indoor return air port 12 and the indoor air outlet 11 can be connected to realize internal circulation. The damper 161 is installed at the connecting port to realize the start and stop of internal circulation, which facilitates the installation and fixation of the damper 161.

[0242] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0243] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The outer casing is provided with an indoor air outlet, an indoor return air outlet, an outdoor air outlet, and an outdoor air inlet. A fresh air channel is formed between the indoor air outlet and the outdoor air inlet, and an exhaust air channel is formed between the indoor return air outlet and the outdoor air outlet. A total heat exchange core is disposed in the outer casing and is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct and the airflow flowing through the exhaust duct. A heat exchanger configured to exchange heat with the airflow flowing through the fresh air duct; Two fan assemblies, each fan assembly including a mounting bracket and a fan, the fan being mounted on the mounting bracket; one fan assembly is disposed in the fresh air duct, and the other fan assembly is disposed in the exhaust air duct; The mounting bracket is spaced apart from the top plate of the housing. The fan is equipped with a centrifugal fan. The mounting bracket is also provided with a ventilation opening, which is configured to allow airflow to flow between the top and bottom of the mounting bracket.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The ventilation opening is located on the outside of the fan and away from the total heat exchange core.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The mounting bracket is provided with a clearance notch, which is arranged adjacent to the total heat exchange core, and the corresponding corner of the total heat exchange core is sandwiched between the two fans.

4. The air conditioner indoor unit according to any one of claims 1-3, characterized in that, Also includes: An insulation frame, wherein the insulation frame is provided with a first connection port, a second connection port, a third connection port and a fourth connection port; The insulation frame is disposed in the outer shell and abuts against the inner side wall of the outer shell. The first connection port is connected to the indoor air outlet, the second connection port is connected to the indoor return air outlet, the third connection port is connected to the outdoor air inlet, and the fourth connection port is connected to the outdoor air outlet.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The insulation frame is provided with a partition plate, the partition plate is provided with a ventilation opening, the partition plate covers the inside of the first connection port, the partition plate separates the first connection port and the second connection port, and the partition plate divides the insulation frame into a first installation area and a second installation area. The heat exchanger is provided in the first installation area, and the total heat exchange core and the fan assembly are provided in the second installation area; The outlet of one of the fans is connected to the fourth connection port, and the outlet of the other fan is connected to the first installation area through the ventilation port; The heat exchanger is arranged between the vent and the first connection port.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The two fan assemblies are arranged side by side on one side of the housing; The insulation frame is also provided with a first partition plate, which is located between the two fan assemblies.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The insulation frame is also provided with a second partition plate; The second spacer is disposed between the partition plate and the total heat exchange core; The second partition plate is provided with a connecting port, and a damper is provided in the connecting port. The connecting port is configured to connect the indoor air outlet and the indoor air return outlet, and the damper is configured to open and close the connecting port.

8. The indoor unit of the air conditioner according to claim 5, characterized in that, A first mounting plate is provided between the first end of the heat exchanger and the inner sidewall adjacent to the insulation frame, and a second mounting plate is provided between the second end of the heat exchanger and the insulation frame. The second mounting plate is inclined toward the indoor air outlet and connected between the indoor air outlet and the indoor return air outlet.

9. The indoor unit of the air conditioner according to claim 4, characterized in that, The insulation frame is provided with two first mounting parts arranged opposite to each other, and a first filter screen is provided between the two first mounting parts; The first filter screen is disposed between the total heat exchange core and the indoor return air vent.

10. The indoor unit of the air conditioner according to claim 4, characterized in that, The insulation frame is provided with two second mounting parts arranged opposite to each other, and a second filter screen is provided between the two second mounting parts; The second filter is disposed between the total heat exchange core and the outdoor air inlet.

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