An air conditioner indoor unit

Abstract

The utility model relates to a kind of air conditioner indoor unit in air conditioning technical field, the air conditioner indoor unit includes casing and electric appliance box, heat exchanger is arranged in the length direction of casing in casing, top wall of casing is equipped with air inlet, and air inlet and the air inlet surface of heat exchanger form air inlet air duct;Electric appliance box is between heat exchanger and the top wall of casing, or electric appliance box is between heat exchanger and the front side wall of casing, so that at least part of surface of electric appliance box is located in air inlet air duct.The setting position of electric appliance box makes full use of the feature that the casing of air conditioner indoor unit is thick, avoids electric appliance box to encroach heat exchanger in length direction installation space, effectively solve the space occupation problem caused by heat exchanger lengthening in electric appliance box layout in relevant technology, give consideration to multiple needs of high energy efficiency split unit to compact structure, heat dissipation performance and maintenance convenience, especially adapt to special requirements of special market to narrow space utilization and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit for air conditioning. Background Technology

[0002] In the field of air conditioning technology, such as wall-mounted air conditioner indoor units, energy efficiency needs to be improved by lengthening the heat exchanger and air duct. However, the traditional electrical box is usually located in the middle or end of the length of the air conditioner, which compresses or occupies the space in the length of the indoor unit, resulting in no usable space in the length of the whole unit, and thus cannot meet the structural requirements of lengthening the heat exchanger. Utility Model Content

[0003] The technical problem to be solved by this utility model is that in the prior art, the electrical box of the indoor unit of an air conditioner is usually located in the middle or end of the length of the air conditioner, which causes the space in the length of the indoor unit to be compressed or occupied, resulting in no usable space in the length of the whole unit, and failing to meet the structural requirements of the extended heat exchanger. Therefore, this utility model provides an indoor unit of an air conditioner.

[0004] This utility model aims to provide an indoor unit for an air conditioner, comprising:

[0005] A housing, wherein a heat exchanger is disposed inside the housing along the length of the housing, an air inlet is provided on the top wall of the housing, the heat exchanger has an air inlet surface, a portion of the air inlet surface faces the top wall of the housing, a portion faces the front side wall of the housing, and an air inlet duct is formed between the air inlet and the air inlet surface of the heat exchanger.

[0006] An electrical box is disposed inside the housing. The electrical box is located between the heat exchanger and the top wall of the housing, or between the heat exchanger and the front side wall of the housing, such that at least a portion of the surface of the electrical box is located in the air inlet duct.

[0007] In some embodiments, the indoor unit of the air conditioner includes:

[0008] Filter screen;

[0009] A first limiting frame is provided at the air inlet, and a filter slide is formed within the first limiting frame. The filter is slidably disposed in the filter slide. The filter includes a flat portion and a curved portion. The flat portion is located in the first limiting frame, and the curved portion extends from the end of the flat portion near the electrical box to the space between the heat exchanger and the electrical box.

[0010] In some embodiments, the electrical box is located on the front side of the heat exchanger along the thickness direction of the housing.

[0011] In some embodiments, a second limiting frame is provided inside the housing between the heat exchanger and the electrical box. An operating port is formed between the second limiting frame and the first limiting frame. The curved portion of the filter screen covers the operating port, and the lower end of the curved portion is located below the operating port and is pressed against the second limiting frame by the electrical box.

[0012] In some embodiments, the front sidewall of the housing is provided with an installation window, and the first side edge of the electrical box is rotatably disposed at one end of the installation window, such that the second side edge of the electrical box is detachably connected to the other end of the installation window. The first side edge and the second side edge are two opposite edges of the electrical box in the length direction of the housing.

[0013] In some embodiments, a first connecting post is fixedly connected to the upper and / or lower sidewalls of the mounting window, and a sliding groove and a first connecting hole located at the end of the sliding groove are provided on the upper and / or lower sidewalls of the electrical box. The sliding groove has a sloping bottom wall, which gradually slopes towards the outer wall of the electrical box from away from the first connecting hole to near the first connecting hole. The first connecting post can slide into the sliding groove along the sloping bottom wall and slide until the first connecting post enters the first connecting hole.

[0014] In some embodiments, a first protrusion is fixedly connected to the upper and / or lower sidewalls of the mounting window, and a first slot corresponding to the first protrusion is provided at one and / or the other end of the second side edge of the electrical box, and the first slot is detachably engaged with the corresponding first protrusion.

[0015] In some embodiments, the electrical box includes a box body and a box cover. A second connecting hole is provided on one side wall of the box body, and a second protrusion is provided on the other side wall. A snap-fit ​​member is provided on one side wall of the box cover to engage with the second connecting hole, and a second slot is provided on the other side wall of the box cover to engage with the second protrusion.

[0016] In some embodiments, the snap-fit ​​component includes a connecting plate and a snap-fit ​​rib. The snap-fit ​​rib is configured as an arc-shaped rib that fits the edge of the second connecting hole. One end of the connecting plate is fixedly connected to the peripheral sidewall of the lid, and the other end is connected to the snap-fit ​​rib.

[0017] In some embodiments, the indoor unit of the air conditioner includes:

[0018] The front panel is located on the front side of the electrical box and is foldable at the front end of the housing.

[0019] The solution provided by this utility model has the following advantages compared with the prior art:

[0020] By placing the electrical box within the air inlet duct, either between the heat exchanger and the top wall of the casing, or between the heat exchanger and the front side wall of the casing, the space perpendicular to the length of the casing is fully utilized. This avoids the electrical box encroaching on the installation space of the heat exchanger in the length direction, effectively solving the space occupation problem caused by the extended heat exchanger in related technologies. It also meets the multiple requirements of high-efficiency split-type air conditioners for compact structure, heat dissipation performance, and ease of maintenance, especially suitable for specific markets with special requirements for space utilization and high energy efficiency. Furthermore, at least part of the surface of the electrical box is located within the air inlet duct, which can fully utilize the cooling capacity within the air inlet duct to dissipate heat and cool the electrical box, keeping its temperature within the normal range and preventing malfunctions due to overheating. Attached Figure Description

[0021] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of an indoor air conditioner unit shown in an embodiment of this utility model;

[0023] Figure 2 This is one of the partial schematic diagrams of an indoor air conditioner unit shown in an embodiment of this utility model;

[0024] Figure 3 This is a second partial schematic diagram of the indoor unit of the air conditioner shown in this embodiment of the present utility model;

[0025] Figure 4 This is the third partial schematic diagram of the indoor unit of the air conditioner shown in this embodiment of the present utility model;

[0026] Figure 5 This is the fourth partial schematic diagram of the indoor unit of the air conditioner shown in this embodiment of the present utility model;

[0027] Figure 6 yes Figure 5 Enlarged view of point D;

[0028] Figure 7 This is a schematic diagram of the electrical box shown in an embodiment of the present utility model;

[0029] Figure 8 yes Figure 7Enlarged view of point A in the middle;

[0030] Figure 9 This is a schematic diagram of the box body shown in an embodiment of the present utility model;

[0031] Figure 10 yes Figure 9 Enlarged view of point B in the middle;

[0032] Figure 11 This is the fifth partial schematic diagram of the indoor unit of the air conditioner shown in the embodiment of this utility model;

[0033] Figure 12 yes Figure 10 Enlarged diagram of point C in the middle.

[0034] In the diagram: 1-House, 101-Air inlet, 2-Electrical box, 201-Slide groove, 202-First connecting hole, 203-First slot, 204-Box body, 205-Box cover, 206-Second connecting hole, 207-Second protrusion, 208-Second slot, 2081-Connecting plate, 2082-Snap-fit ​​rib, 209-Second slot, 210-First side edge, 211-Second side edge, 3-First limiting frame, 301-Filter slide, 4-Filter, 401-Flat part, 402-Bent part, 5-Second limiting frame, 501-Operating port, 6-Installation window, 601-First connecting post, 602-First protrusion, 7-Front panel.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Wall-mounted air conditioner indoor units need to improve energy efficiency by lengthening the heat exchanger and air duct. However, in existing technology, the electrical box is usually located in the middle or end of the length of the indoor unit, which compresses or occupies the space in the length of the indoor unit, resulting in no usable space in the length of the indoor unit and failing to meet the need to lengthen the heat exchanger.

[0039] Based on this, an indoor air conditioning unit is proposed. The technical solution of this disclosure will be described in detail below through specific embodiments.

[0040] Example 1:

[0041] like Figure 1-4 As shown, this embodiment provides an indoor air conditioning unit, including a housing 1 and an electrical box 2. A heat exchanger is disposed inside the housing 1, and the heat exchanger is arranged along the length direction of the housing 1. An air inlet 101 is also provided on the top wall of the housing 1. The heat exchanger may have an air inlet surface and an air outlet surface, which are arranged opposite to each other. Airflow enters the heat exchanger from the air inlet surface for heat exchange and flows out of the heat exchanger from the air outlet surface. In this disclosure, the heat exchanger has an air inlet surface, a portion of which faces the top wall of the housing 1 and a portion of which faces the front side wall of the housing 1. An air inlet duct is formed between the air inlet 101 and the air inlet surface of the heat exchanger. For example, the air inlet surface includes a first sub-surface and a second sub-surface. The first sub-surface of the air inlet surface faces the top wall of the housing, and the second sub-surface faces the front side wall of the housing. Therefore, the air inlet duct may include a direct airflow duct pointing from the top wall to the first sub-surface, and a streamlined airflow duct pointing from the top wall in a curved shape to the second sub-surface. After entering the casing 1 through the air inlet 101, the airflow flows through the heat exchanger and exchanges heat with it. The airflow after heat exchange is discharged into the room through the air outlet. The electrical box 2 is also disposed inside the casing 1. The electrical box 2 is located between the heat exchanger and the top wall of the casing 1, or between the heat exchanger and the front side wall of the casing 1, such that at least a portion of the surface of the electrical box 2 is located in the air inlet duct. In this disclosure, the phrase "at least a portion of the surface of the electrical box 2 is located in the air inlet duct" should be understood as meaning that at least a portion of the surface of the electrical box 2 is in contact with the airflow in the air inlet duct, thereby allowing the airflow in the air inlet duct to carry away the heat from the surface of the electrical box 2.

[0042] In this embodiment, the heat exchanger is arranged along the length of the casing 1, which increases the length of the heat exchanger and provides sufficient heat exchange area, thereby enabling thorough heat exchange with the airflow in the air inlet duct. The electrical box 2, used to store components such as the motherboard, is prone to generating high temperatures. Placing the electrical box 2 within the air inlet duct allows airflow to pass through it, thus also exchanging heat with the electrical box 2. The cooling energy within the air inlet duct helps to cool the electrical box 2, keeping its temperature within the normal range and preventing malfunctions due to overheating. The thickness direction of the casing 1 usually refers to the direction from the wall surface that is in contact with the casing 1 to the front panel 7 of the air conditioner facing the user. The side of the heat exchanger refers to the position that will not interfere with or obstruct the extension line of the heat exchanger along its length, such as the depth direction or height direction of the heat exchanger. Therefore, the electrical box 2 is set along the thickness direction of the casing 1 and located on one side of the heat exchanger. For example, the electrical box 2 can be set between the heat exchanger and the top wall of the casing 1, or between the heat exchanger and the front side wall of the casing 1. This allows the electrical box 2 to be modularized, avoiding the electrical box 2 from encroaching on the installation space of the heat exchanger in the length direction. This freed-up installation space can be used to lengthen the heat exchanger's pipes and expand the flow area of ​​the air intake duct, so that the indoor unit of the air conditioner can achieve a higher energy efficiency value.

[0043] By placing the electrical box 2 inside the air inlet duct and along the thickness direction of the casing 1 on one side of the heat exchanger, the relatively thick casing 1 of the indoor air conditioning unit is fully utilized, avoiding the electrical box 2 from encroaching on the installation space of the heat exchanger in the length direction. This effectively solves the space occupation problem caused by the extension of the heat exchanger in the layout of the electrical box 2 in related technologies. It takes into account the multiple requirements of high-efficiency split units for compact structure, heat dissipation performance and convenient maintenance, and is especially suitable for the special requirements of specific markets for the utilization of small spaces and high energy efficiency.

[0044] Optionally, such as Figure 2-5 As shown, in one implementation of this embodiment, the indoor unit of the air conditioner also includes a filter 4. The filter 4 is used to filter the airflow before it enters the air inlet duct to prevent dust or debris from entering the duct. A first limiting frame 3 is provided on the top wall of the housing 1. The first limiting frame 3 is located at the air inlet 101. A filter slide 301 is formed on the first limiting frame 3. The filter 4 is located within the first limiting frame 3 and is slidably disposed in the filter slide 301. The filter 4 includes a flat portion 401 and a curved portion 402. The flat portion 401 and the curved portion 402 can be understood as the filter 4 being a flexible and bendable filter. It can be bent in an appropriate part according to the layout of the interior of the housing 1 to better adapt to the spatial layout inside the housing 1. The flat portion 401 is located in the first limiting frame 3, and the curved portion 402 bends and extends from the end of the flat portion 401 near the electrical box 2 to the space between the heat exchanger and the electrical box 2.

[0045] In this embodiment, the indoor unit of the air conditioner is also equipped with a filter 4. The end of the filter 4 extends from inside the first limiting frame 3 toward the electrical box 2, and at least a portion of the filter 4 along the thickness direction of the casing 1 is located between the electrical box 2 and the heat exchanger. When the indoor unit of the air conditioner is running, the filter 4 completely covers the air inlet 101 on the casing 1 and the portion between the electrical box 2 and the heat exchanger. When it is necessary to clean the filter 4, the filter 4 can be pulled and pushed along the filter slide 301 on the first limiting frame 3, thereby quickly completing the disassembly and installation of the filter 4 and improving the cleaning efficiency of the filter 4. When the indoor unit of the air conditioner is running, the airflow enters the air intake duct and flows not only through the heat exchanger but also through the electrical box 2. During the process of the airflow passing through the electrical box 2, it will exchange heat with it, so that the temperature of the electrical box 2 is always kept at a stable operating temperature. By placing part of the filter screen 4 between the electrical box 2 and the heat exchanger, the filter screen 4 can intercept the dust attracted by static electricity on the electrical box 2, preventing this dust from entering the casing 1 and contacting the heat exchanger. The heat exchanger will not reduce its heat exchange efficiency due to excessive dust accumulation.

[0046] By setting the first limiting frame 3 and the filter slide 301 to pull and push the filter 4, and placing at least a part of the filter 4 between the electrical box 2 and the heat exchanger, the cleaning efficiency of the filter 4 can be improved, and the dust adsorbed on the electrical box 2 can be prevented from entering the casing 1 and contacting the heat exchanger, thereby optimizing the heat dissipation efficiency of the heat exchanger.

[0047] Optionally, such as Figure 2-5 As shown, in one implementation of this embodiment, the electrical box 2 is disposed on the front side of the heat exchanger along the thickness direction of the housing 1, and at least a portion of the filter screen 4 is located on the rear side of the electrical box 2 along the thickness direction of the housing 1.

[0048] In this embodiment, the front side of the heat exchanger along the thickness direction of the housing 1 is the side facing the front panel 7 of the indoor air conditioning unit. This means the electrical box 2 is embedded inside the housing 1 and located in the space between the front panel 7 and the heat exchanger. This arrangement does not affect the length of the heat exchanger and fully utilizes the space between the heat exchanger and the front panel 7. The rear side of the electrical box 2 along the thickness direction of the housing 1 is the side facing the heat exchanger. At least a portion of the filter 4 is located in the space between the electrical box 2 and the heat exchanger. This arrangement, with the filter 4 separating the heat exchanger and the electrical box 2, prevents dust adsorbed on the electrical box 2 from contacting the heat exchanger. Simultaneously, the heat exchanger and air inlet duct behind the electrical box 2 promptly remove the heat generated by the electrical box 2, avoiding the need for additional radiator components similar to those found in the outdoor unit's electrical box 2.

[0049] By placing the electrical box 2 in the space between the front panel 7 of the indoor unit of the air conditioner and the heat exchanger, and placing at least part of the filter screen 4 in the space between the electrical box 2 and the heat exchanger, it is possible to avoid the dust adsorbed on the electrical box 2 from coming into contact with the heat exchanger and reducing the heat exchange efficiency. It is also possible to make full use of the air intake duct between the heat exchanger and the front panel 7 to carry away the heat generated by the electrical box 2, thus avoiding the need to add heat sink parts similar to those in the electrical box 2 of the outdoor unit.

[0050] Optionally, such as Figure 2-4 As shown, in one implementation of this embodiment, a second limiting frame 5 is provided at the front of the space inside the housing 1. The second limiting frame 5 is located between the electrical box 2 and the heat exchanger. Specifically, the second limiting frame 5 is located at the rear side of the electrical box 2 and at the front side of the heat exchanger. An operation port 501 is formed between the second limiting frame 5 and the first limiting frame 3. At least a portion of the filter screen 4 extends outward from the operation port 501. The curved portion 402 of the filter screen 4 covers the operation port 501, and the lower end of the curved portion 402 is located below the operation port 501 and is pressed against the second limiting frame 5 by the electrical box 2.

[0051] In this embodiment, the filter 4 is a flexible filter with a certain deformation capability. The second limiting frame 5 is located inside the housing 1 and close to the electrical box 2. The second limiting frame 5 is located in the internal space of the housing 1 near the front panel 7 of the indoor unit of the air conditioner. There is a gap between the second limiting frame 5 and the first limiting frame 3 located on the top wall of the housing 1. This gap forms an operation port 501. At least a portion of the filter 4 extends through the operation port 501 and abuts against the front side of the second limiting frame 5 through a certain degree of deformation. The front side of the second limiting frame 5 is the side of the second limiting frame 5 closest to the first limiting frame 3. In this way, the space formed between the second limiting frame 5 and the electrical box 2 can limit the filter 4 located therein, preventing the end of the filter 4 from coming out between the second limiting frame 5 and the electrical box 2, keeping the filter 4 stable, and always able to filter the air inlet duct with its maximum filtration area. By abutting a portion of the filter 4 between the second limiting frame 5 and the electrical box 2, the number of parts used to fix the filter 4 is reduced.

[0052] By utilizing the deformation capability of the filter screen 4, the portion of the filter screen 4 protruding from the operation port 501 is pressed against the second limiting frame 5 and the electrical box 2, saving the number of parts used to fix the filter screen 4, thereby further improving the work efficiency of disassembling and assembling the filter screen 4.

[0053] Optionally, such as Figure 2 , 12As shown, in one implementation of this embodiment, an installation window 6 is provided on the front side wall of the inner space of the housing 1. The first side edge 210 of the electrical box 2 is rotatably disposed at one end of the installation window 6, so that the second side edge 211 of the electrical box 2 is openably connected to the other end of the installation window 6. The first side edge 210 and the second side edge 211 are two opposite edges of the electrical box 2 in the length direction of the housing 1.

[0054] In this embodiment, considering the indoor unit of the air conditioner being mounted on the wall, such as... Figure 2 As shown, the first side edge 210 is rotatably disposed at one end of the mounting window 6, which can be understood as the first side edge 210 being rotatably disposed at the right end of the mounting window 6. The second side edge 211 of the electrical box 2 is closably connected to the other end of the mounting window 6, which can be understood as the second side edge 211 of the electrical box 2 being closably connected to the left end of the mounting window 6. The mounting window 6 is located in the internal space of the housing 1 near the front panel 7 of the indoor air conditioning unit, and the electrical box 2 is embedded in the mounting window 6. One end of the electrical box 2 is rotatably connected to one end of the mounting window 6, allowing the electrical box 2 to rotate away from the housing 1 and the filter 4.

[0055] When cleaning the filter 4 is required, the user can open the other end of the electrical box 2 and the other end of the mounting window 6, rotate the electrical box 2 to gradually increase the space between the electrical box 2 and the second limiting frame 5. This space no longer limits the portion of the filter 4 located within it, and the end of the filter 4 is exposed. The user can then pull out the filter 4 for cleaning or replacement. After the filter 4 has been inserted into the filter slide 301 of the first limiting frame 3, the user presses the portion of the filter 4 protruding from the operation port 501 against the side of the second limiting frame 5 closest to the first limiting frame 3. Then, the user rotates the electrical box 2 towards the second limiting frame 5 until the electrical box 2 is fully embedded in the mounting window 6. At this point, the other end of the electrical box 2 and the other end of the mounting window 6 are closed, and the portion of the filter 4 protruding from the operation port 501 is limited between the electrical box 2 and the second limiting frame 5. By rotating the electrical box 2 and the installation window 6, interference between the electrical box 2 and the filter 4 during disassembly and assembly can be effectively avoided, ensuring that the electrical box 2 and the filter 4 do not affect each other's disassembly, while maximizing the use of the internal space of the air conditioner indoor unit.

[0056] When electrical box 2 needs to be repaired, simply rotate electrical box 2 away from the second limit frame 5 to detach electrical box 2 from the installation window 6. This allows users to quickly remove electrical box 2 directly from the installation window 6 when disassembling or repairing electrical box 2, without having to remove the casing 1 first, thus greatly enhancing the convenience of repairing electrical box 2.

[0057] By rotating the electrical box 2 and the installation window 6, interference between the electrical box 2 and the filter 4 can be effectively avoided when they are disassembled and installed separately. At the same time, the internal space of the air conditioner indoor unit is maximized, allowing users to quickly remove the electrical box 2 from the installation window 6 when disassembling or repairing it, without having to disassemble the casing 1, which greatly enhances the convenience of repairing the electrical box 2.

[0058] Optionally, such as Figure 2 , 12 As shown, in one implementation of this embodiment, a first connecting post 601 is fixedly connected to the upper and / or lower sidewalls of the mounting window 6. A sliding groove 201 and a first connecting hole 202 located at the end of the sliding groove 201 are provided on the upper and / or lower sidewalls of the electrical box 2. The sliding groove 201 has a sloping bottom wall, which gradually slopes towards the outer sidewall of the electrical box 2 from away from the first connecting hole 202 to near the first connecting hole 202. The first connecting post 601 can slide into the sliding groove 201 along the sloping bottom wall and slide until the first connecting post 601 enters the first connecting hole 202.

[0059] In this embodiment, the electrical box 2 is an injection-molded part with a certain degree of ductility. Taking the example of having two first connecting posts 601, the two first connecting posts 601 are located on the upper and lower side walls of the mounting window 6, respectively. There are also two sliding grooves 201 and two connecting holes, located on the upper and lower side walls of the electrical box 2, respectively. The sliding grooves 201, as groove structures from deep to shallow, can ensure that the first connecting posts 601 slide smoothly into the first connecting holes 202. When assembling the electrical box 2 with the mounting window 6, the sliding grooves 201 on both sides of the electrical box 2 are aligned with the first connecting posts 601 on both sides of the mounting window 6. Then, the electrical box 2 is moved downwards, so that the first connecting posts 601 are engaged in the end of the sliding groove 201 away from the first connecting hole 202 and move towards the first connecting hole 202. The mounting window 6 has a certain degree of elastic deformation capability. With its sloping bottom wall facing the side wall of the mounting window 6, as the electrical box 2 moves downwards, the sloping bottom walls on both sides of the electrical box 2 get closer and closer to the first connecting post 601 until they abut together. The first connecting post 601 applies stress to the sloping bottom wall in the direction of inward movement towards the electrical box 2. Under this stress, the side wall of the electrical box 2 begins to deform at its center, allowing the first connecting post 601 to continue moving towards the first connecting hole 202. Once the first connecting post 601 enters the first connecting hole 202, the stress applied to the electrical box 2 by the first connecting post 601 disappears, the side wall of the electrical box 2 returns to its original deformation, and the assembly between the electrical box 2 and the mounting window 6 is completed. Because the electrical box 2 has a certain degree of ductility, the electrical box 2 can be removed from the mounting window 6 simply by reversing the above steps. The electrical box 2 can rotate relative to the mounting window 6 through the cooperation of the first connecting post 601 and the first connecting hole 202. The cooperation between the sliding groove 201, the connecting hole and the first connecting post 601 enables the electrical box 2 to be quickly pre-positioned with the mounting window 6. This reduces the number of parts used for connection, allowing the electrical box 2 to be closer to the mounting window 6. It also utilizes the deformation capability of the mounting window 6 to achieve rapid installation of the electrical box 2, simplifying the assembly process of the electrical box 2.

[0060] By using the sliding groove 201, the connecting hole and the first connecting post 601 to install the electrical box 2 on the housing 1 in a modular design, the electrical box 2 can be removed simply by opening the panel of the indoor air conditioner and pressing a few snap-fit ​​structures, without having to disassemble the entire exterior parts of the indoor air conditioner and the housing 1. This significantly reduces maintenance difficulty and time costs, and improves the convenience of maintenance and after-sales efficiency of the electrical box 2.

[0061] Optionally, such as Figure 2-4As shown in Figures 6 and 12, in one implementation of this embodiment, a first protrusion 602 is fixedly connected to the upper and / or lower sidewall of the mounting window 6, and a first slot 203 corresponding to the first protrusion 602 is provided at one and / or the other end of the second side edge 211 of the electrical box 2. The first slot 203 is detachably engaged with the corresponding first protrusion 602.

[0062] In this embodiment, when the first connecting post 601 of the mounting window 6 is inserted into the first connecting hole 202 of the electrical box 2, the electrical box 2 can rotate within the mounting window 6. When it is necessary to store the electrical box 2 within the mounting window 6, the electrical box 2 is rotated towards the second limiting frame 5. When the first protrusion 602 on the other side wall of the mounting window 6 is fully engaged in the first slot 203 on the other side wall of the electrical box 2, the electrical box 2 is also fully stored within the mounting window 6. The first protrusion 602 and the first slot 203 form a limiting mechanism for the electrical box 2, ensuring that the electrical box 2 remains within the mounting window 6 even under airflow disturbances or gravity, avoiding interference with other components outside the mounting window 6. The first slot 203 is an elastic structure, and the first protrusion 602 can be separated from the first slot 203 simply by reversing the above steps.

[0063] The first protrusion 602 and the first slot 203 cooperate to ensure that the electrical box 2 can be located inside the mounting window 6 under the influence of airflow disturbance or gravity, thus avoiding interference with other components outside the mounting window 6.

[0064] Optionally, such as Figure 5 , 7 As shown in Figures 8 and 10, in one implementation of this embodiment, the electrical box 2 includes a box body 204 and a box cover 205. A second connecting hole 206 is provided on one side of the peripheral wall of the box body 204, and a second protrusion 207 is provided on the other side of the peripheral wall of the box body 204. A snap-fit ​​member is provided on one side of the peripheral wall of the box cover 205, which is used to cooperate with the second connecting hole 206. A second slot 209208 is provided on the other side of the peripheral wall of the box cover 205, which can cooperate with the second protrusion 207 to snap together.

[0065] In this embodiment, the electrical box 2 includes a box body 204 and a box cover 205. When assembling the box body 204 and the box cover 205, first align the snap-fit ​​on the box cover 205 with the second connecting hole 206 on the box body 204, and snap the snap-fit ​​into the second connecting hole 206 to form a snap-fit ​​engagement. This can fix one side of the box cover 205 to one side of the box body 204. Then, move the other side of the box cover 205 closer to the other side of the box body 204 until the second protrusion 207 on the box body 204 is completely snapped into the second slot 209208 on the box cover 205. At this time, the box cover 205 and the box body 204 are assembled. The second slot 209208 is an elastic structure. The second protrusion 207 and the second slot 209208 can be separated by simply reversing the above steps.

[0066] By assembling the cover 205 and the body 204 together by snap-fitting, the two achieve a snap-fit ​​engagement through their own structure. The engagement of the snap-fitting part with the second connecting hole 206 allows the cover 205 to rotate within a certain angle without detaching from the body 204, eliminating the need for pins and connectors. This simplifies the assembly process of the electrical box 2 and significantly reduces the difficulty of maintaining the electrical box 2.

[0067] Optionally, such as Figure 8 As shown, in one implementation of this embodiment, the snap-fit ​​component includes a connecting plate 2081 and a snap-fit ​​rib 2082. The snap-fit ​​rib 2082 is an arc-shaped rib and fits with the edge of the second connecting hole 206. One end of the connecting plate 2081 is fixed to the peripheral side wall of the cover 205, and the other end of the connecting plate 2081 is connected to the snap-fit ​​rib 2082.

[0068] In this embodiment, the side edges of the lid 205 are all formed with circumferential sidewalls. One end of the connecting plate 2081 is fixed to the circumferential sidewall of the lid 205 and extends downward. When the lid 205 is fastened onto the box body 204, the connecting plate 2081 abuts against the sidewall of the box body 204 with the second connecting hole 206. The connecting plate 2081 can restrict the lid 205 from moving along the axial direction of the second connecting hole 206. The other end of the connecting plate 2081 is connected to the retaining rib 2082. The connecting rib 2082 is an arc-shaped rib that fits the edge of the second connecting hole 206. When the cover 205 is fastened to the box body 204, the connecting rib 2082 is located inside the end face of the second connecting hole 206 and abuts against the hole wall of the second connecting hole 206 to restrict the vertical movement of the cover 205. It also restricts the radial movement of the cover 205 along the second connecting hole 206, so that the cover 205 can be stably fastened to the box body 204.

[0069] By abutting the connecting plate 2081 and the snap-fit ​​rib 2082 on the cover 205 against the box body 204, the risk of the cover 205 moving in all directions is greatly reduced, so that the cover 205 can always be fastened to the box body 204, thereby improving the structural strength of the electrical box 2.

[0070] Optionally, such as Figure 1 As shown, in one implementation of this embodiment, the indoor unit of the air conditioner also includes a front panel 7. The front panel 7 is disposed on the front side of the housing 1 and can be opened and closed relative to the housing 1. At the same time, the front panel 7 is also located on the front side of the electrical box 2.

[0071] In this embodiment, the front panel 7 of the indoor air conditioner unit can be opened and closed. When it is necessary to inspect the electrical box 2 or clean the filter 4, the front panel 7 can be opened, exposing the electrical box 2 on the surface of the housing 1. At this time, the electrical box 2 can be removed from the mounting window 6 for inspection. The electrical box 2 can also be rotated to fully expose the end of the filter 4, so that the filter 4 can be removed. After the filter 4 and the electrical box 2 are installed, the front panel 7 can be fastened to the housing 1, and the indoor air conditioner unit can then start operating. A display screen or signal receiver can also be installed on the front panel 7 to make full use of the space between the front panel 7 and the housing 1.

[0072] In summary, the ingenious design of the air conditioner indoor unit lies in:

[0073] First, by placing the electrical box inside the air inlet duct and along the thickness of the casing on one side of the heat exchanger, the relatively thick casing of the indoor air conditioning unit is fully utilized. This avoids the electrical box encroaching on the installation space of the heat exchanger along its length, effectively solving the space occupation problem caused by the extended heat exchanger in related technologies. It also takes into account the multiple requirements of high-efficiency split units for compact structure, heat dissipation performance, and ease of maintenance, and is especially suitable for specific markets with special requirements for space utilization and high energy efficiency.

[0074] Secondly, by setting a first limiting frame and a filter slide, the filter can be pulled and pushed, and at least a part of the filter is placed between the electrical box and the heat exchanger. This can not only improve the cleaning efficiency of the filter, but also prevent dust adsorbed on the electrical box from entering the casing and contacting the heat exchanger, thereby optimizing the heat dissipation efficiency of the heat exchanger.

[0075] Third, by placing the electrical box in the space between the front panel of the indoor unit and the heat exchanger, and placing at least part of the filter in the space between the electrical box and the heat exchanger, it is possible to avoid dust adsorbed on the electrical box from coming into contact with the heat exchanger and reducing the heat exchange efficiency. It is also possible to make full use of the air intake duct between the heat exchanger and the front panel to carry away the heat generated by the electrical box, thus avoiding the need to add radiator parts similar to those in the outdoor unit's electrical box.

[0076] Fourth, by utilizing the deformation capability of the filter screen, the portion of the filter screen protruding from the operating port is pressed against the second limiting frame and the electrical box, saving the number of parts used to fix the filter screen, thereby further improving the efficiency of filter screen disassembly and assembly.

[0077] Fifth, the rotating connection between the electrical box and the installation window effectively avoids interference when the electrical box and the filter are disassembled and installed separately. At the same time, it maximizes the use of the internal space of the air conditioner indoor unit, allowing users to quickly remove the electrical box from the installation window when disassembling or repairing it, without having to disassemble the casing, greatly enhancing the convenience of electrical box maintenance.

[0078] Sixth, by using the sliding groove, connecting hole and first connecting post to install the electrical box on the housing in a modular design, the electrical box can be removed simply by opening the panel of the indoor air conditioner and pressing a few snap-fit ​​structures, without having to disassemble the entire exterior parts and housing of the indoor air conditioner. This significantly reduces maintenance difficulty and time costs, and improves the convenience of electrical box maintenance and after-sales efficiency.

[0079] Seventh, by abutting the connecting plate and snap-fit ​​rib on the lid against the box body, the risk of the lid moving in all directions is greatly reduced, thus ensuring that the lid is always fastened to the box body and improving the structural strength of the electrical box.

[0080] It can be further understood that in this disclosure, "many" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0081] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0082] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0083] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims of this application.

[0084] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing (1) is provided inside the housing (1) along the length of the housing (1). An air inlet (101) is provided on the top wall of the housing (1). The heat exchanger has an air inlet surface, a part of which faces the top wall of the housing (1) and a part of which faces the front side wall of the housing (1). An air inlet duct is formed between the air inlet (101) and the air inlet surface of the heat exchanger. An electrical box (2) is disposed inside the housing (1). The electrical box (2) is located between the heat exchanger and the top wall of the housing (1), or the electrical box (2) is located between the heat exchanger and the front side wall of the housing (1), such that at least a portion of the surface of the electrical box (2) is located in the air inlet duct.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, include: Filter (4); A first limiting frame (3) is provided at the air inlet (101), and a filter slide (301) is formed in the first limiting frame (3). The filter (4) is slidably disposed in the filter slide (301). The filter (4) includes a flat part (401) and a curved part (402). The flat part (401) is located in the first limiting frame (3), and the curved part (402) extends from the end of the flat part (401) near the electrical box (2) to the space between the heat exchanger and the electrical box (2).

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The electrical box (2) is located on the front side of the heat exchanger along the thickness direction of the housing (1).

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing (1) is provided with a second limiting frame (5) located between the heat exchanger and the electrical box (2). An operation port (501) is formed between the second limiting frame (5) and the first limiting frame (3). The curved part (402) of the filter screen (4) covers the operation port (501), and the lower end of the curved part (402) is located below the operation port (501) and is pressed against the second limiting frame (5) by the electrical box (2).

5. The indoor unit of the air conditioner according to claim 3, characterized in that, The front side wall of the housing (1) is provided with an installation window (6). The first side edge (210) of the electrical box (2) is rotatably disposed at one end of the installation window (6), so that the second side edge (211) of the electrical box (2) is openably connected to the other end of the installation window (6). The first side edge (210) and the second side edge (211) are two opposite edges of the electrical box (2) in the length direction of the housing (1).

6. The indoor unit of the air conditioner according to claim 5, characterized in that, A first connecting post (601) is fixedly connected to the upper and / or lower sidewall of the installation window (6). A sliding groove (201) and a first connecting hole (202) located at the end of the sliding groove (201) are provided on the upper and / or lower sidewall of the electrical box (2). The sliding groove (201) has a sloping bottom wall. The sloping bottom wall gradually slopes towards the outer sidewall of the electrical box (2) from away from the first connecting hole (202) to close to the first connecting hole (202). The first connecting post (601) can slide into the sliding groove (201) along the sloping bottom wall and slide until the first connecting post (601) enters the first connecting hole (202).

7. The indoor unit of the air conditioner according to claim 5, characterized in that, A first protrusion (602) is fixedly connected to the upper and / or lower side wall of the installation window (6). One end and / or the other end of the second side edge (211) of the electrical box (2) is provided with a first slot (203) corresponding to the first protrusion (602). The first slot (203) is detachably engaged with the corresponding first protrusion (602).

8. The indoor unit of the air conditioner according to any one of claims 1-7, characterized in that, The electrical box (2) includes a box body (204) and a box cover (205). A second connecting hole (206) is provided on one side wall of the box body (204), and a second protrusion (207) is provided on the other side wall. A snap-fit ​​part (208) is provided on one side wall of the box cover (205) to engage with the second connecting hole (206). A second slot (209) is provided on the other side wall of the box cover (205) to engage with the second protrusion (207).

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The snap-fit ​​component (208) includes a connecting plate (2081) and a snap-fit ​​rib (2082). The snap-fit ​​rib (2082) is constructed as an arc-shaped rib that fits the edge of the second connecting hole (206). One end of the connecting plate (2081) is fixedly connected to the peripheral side wall of the cover (205), and the other end is connected to the snap-fit ​​rib (2082).

10. The indoor unit of the air conditioner according to claim 3, characterized in that, include: Front panel (7), the front panel (7) is located on the front side of the electrical box (2), and the front panel (7) is closable and disposed at the front end of the housing (1).

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