Indoor unit of air conditioner

Abstract

According to the air conditioner indoor unit, an electric appliance box is installed in a second cavity of a shell through a first installation opening, a box body is connected with a base, and therefore installation of the electric appliance box on the base is completed. Due to the fact that the first shielding part and the second shielding part are provided with the overlapping area in the front-back direction of the electric appliance box, and the overlapping area is arranged in the circumferential direction of the box cover, when the shell is observed in the front-back direction of the air conditioner indoor unit, the first shielding part and the second shielding part are observed, and the shell is not damaged. Therefore, the black seam arranged around the periphery of the electric appliance box cannot be observed, and the defect of the black seam can be eliminated; besides, when the box cover and the box body are assembled, the box cover is allowed to have a certain left-right movement space relative to the box body, so that the base and the shell can meet the assembly requirements within the injection molding limit tolerance, the size tolerance of manufacturing and assembly is improved, and the product quality and the production efficiency are improved.

Description

Technical Field

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

[0002] Air conditioners are common household appliances, and they are divided into wall-mounted and floor-standing types. Typically, an air conditioner consists of an indoor unit and an outdoor unit; the indoor unit is installed indoors, while the outdoor unit is installed outdoors. Split-type wall-mounted air conditioners include both indoor and outdoor units and are widely used due to their advantages, such as occupying less indoor space, not being limited by installation location, and being easier to match with interior décor.

[0003] In related technologies, the indoor unit of a split-type wall-mounted air conditioner includes a casing and an electrical box installed inside the casing. The electrical box houses circuit boards and electrical components. The electrical box effectively protects the internal circuit boards and electrical components from external environmental influences, ensuring their normal operation and lifespan.

[0004] However, black seams are easily observed at the mounting locations of the electrical boxes on the outer casing. These seams become more noticeable, especially when there are assembly or manufacturing errors, leading to reduced assembly and production efficiency. Utility Model Content

[0005] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide an air conditioning indoor unit that can eliminate black seams, while also improving assembly efficiency and production efficiency.

[0006] An indoor unit for an air conditioner includes: a base; a housing connected to the base, the housing having a first chamber and a second chamber spaced apart along the width of the housing; a panel located on the front side of the housing and connected to the housing, the panel having an air inlet and an air outlet; a heat exchanger disposed in the first chamber; a fan assembly disposed in the first chamber, the fan assembly drawing airflow from outside the housing into the first chamber through the air inlet, exchanging heat through the heat exchanger, and outputting it outward through the air outlet; and an electrical box disposed within... Inside the second chamber, the electrical box includes: a box body disposed within the second chamber and connected to the base; and a box cover covering the box body. A first shielding portion is provided around the outer periphery of the box cover. The outer shell has a first mounting opening for inserting the electrical box, which communicates with the second chamber. A second shielding portion is provided around the circumference of the first mounting opening, extending into the second chamber. The first shielding portion and the second shielding portion have an overlapping area along the front-rear direction of the electrical box, and this overlapping area surrounds the circumference of the box cover.

[0007] In one embodiment, the second shielding portion includes a first baffle and a second baffle; the first baffle and the second baffle are both arranged circumferentially around the first mounting opening, one end of the first baffle is connected to the opening wall of the first mounting opening, the first baffle is arranged at an angle to the front side of the housing, the other end of the first baffle is connected to the second baffle, and the second baffle and the first shielding portion are spaced apart in the front-back direction.

[0008] In one embodiment, the box cover includes a cover plate and a surrounding plate, the cover plate being connected to the surrounding plate, and the surrounding plate being fitted into the box body; the first shielding portion is disposed around the outer periphery of the cover plate, and the first shielding portion is disposed flush with the cover plate.

[0009] In one embodiment, one end of the second shielding part is connected to the wall of the first mounting port, and the other end of the second shielding part is set as a free end and forms a second mounting port; the diameter of the second mounting port is smaller than the diameter of the first mounting port; the diameter of the first mounting port is larger than the outer diameter of the first shielding part and the outer diameter of the box body; the diameter of the second mounting port is larger than the outer diameter of the box body and the outer diameter of the surrounding plate, and the diameter of the second mounting port is smaller than the outer diameter of the first shielding part.

[0010] In one embodiment, the indoor unit of the air conditioner further includes a protective plate, which is a plate made of fire-resistant and insulating material, and the protective plate is fixedly connected to the inner wall of the cover.

[0011] In one embodiment, the protective plate has a plurality of ribs arranged at intervals on the side facing the lid, each of the ribs abutting against the inner wall of the lid; and / or, the outer periphery of the protective plate has a flange that folds away from the inner wall of the lid.

[0012] In one embodiment, the cover is provided with a first snap-fit ​​portion, the body is provided with a second snap-fit ​​portion, and the first snap-fit ​​portion and the second snap-fit ​​portion are snap-fitted together; and / or, the cover plate of the cover is provided with a first mounting portion, the body is provided with a second mounting portion corresponding to the position of the first mounting portion, and the indoor unit of the air conditioner further includes a first connector, the first mounting portion and the second mounting portion are fixedly connected through the first connector.

[0013] In one embodiment, the indoor unit of the air conditioner further includes a second connector, the protective plate is connected and fixed to the cover through the second connector, the protective plate has a protrusion on the side opposite to the cover, the protrusion has a groove, and the head of the second connector is located in the groove.

[0014] In one embodiment, the cover plate of the box lid is provided with a third mounting portion, the thickness of the third mounting portion being greater than the thickness of the rest of the cover plate, and the third mounting portion being connected and fixed to the second connector.

[0015] In one embodiment, the housing is provided with a third snap-fit ​​portion, the base is provided with a fourth snap-fit ​​portion, and the third snap-fit ​​portion is snapped and fixed to the fourth snap-fit ​​portion; the housing is provided with a fourth mounting portion, the base is provided with a fifth mounting portion corresponding to the position of the fourth mounting portion, and the indoor unit of the air conditioner further includes a third connector, and the fourth mounting portion and the fifth mounting portion are fixedly connected through the third connector.

[0016] In the aforementioned air conditioner indoor unit, the electrical box is inserted into the second cavity of the outer casing through the first mounting port, connecting the box to the base, thus completing the installation of the electrical box on the base. Since the first and second shielding parts overlap along the front-rear direction of the electrical box, and this overlapping area surrounds the circumference of the box cover, the black seam surrounding the electrical box cannot be observed when viewing the outer casing along the front-rear direction of the air conditioner indoor unit, thus eliminating the black seam defect. Furthermore, the assembly operation of the box cover and the box body allows for a certain lateral movement of the box cover relative to the box body, ensuring that the assembly requirements are met within the injection molding tolerance limits of both the base and the outer casing. This improves the dimensional tolerance of manufacturing and assembly, and enhances product quality and production efficiency. Attached Figure Description

[0017] Figure 1This is an exploded structural diagram of an indoor air conditioning unit according to an embodiment of this application.

[0018] Figure 2 for Figure 1 The diagram shown is of the air conditioner indoor unit after the panel has been removed.

[0019] Figure 3 for Figure 2 Sectional view of the structure at point AA.

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point C.

[0021] Figure 5 for Figure 2 Sectional view of the structure at BB.

[0022] Figure 6 for Figure 1 The diagram shows the structure of the housing in the indoor unit of an air conditioner.

[0023] Figure 7 for Figure 1 The diagram shows a view of the air conditioner indoor unit with the cover and protective plate assembled together.

[0024] Figure 8 for Figure 7 Cross-sectional view of the structure at DD.

[0025] Figure 9 for Figure 7 The diagram shows another perspective of the combined box lid and protective panel.

[0026] Figure 10 for Figure 7 The diagram shows another perspective of the box lid and protective panel combined.

[0027] Figure 11 for Figure 7 The diagram shows another perspective view of the box lid and protective panel combined together.

[0028] Figure 12 for Figure 11 Sectional view of the structure at EE.

[0029] Figure 13 for Figure 12 Enlarged structural diagram at point F.

[0030] 10. Base; 11. Fourth snap-fit ​​part; 12. Fifth mounting part; 20. Outer shell; 21. First mounting port; 22. Second shielding part; 221. First flange; 222. Second flange; 223. Second mounting port; 30. Panel; 40. Electrical box; 41. Box body; 411. Step; 412. Second snap-fit ​​part; 413. Second mounting part; 414. Fourth mounting part; 42. Box cover; 421. Cover plate; 4211. First mounting part; 4212. Through hole; 4213. Positioning groove; 4214. Third mounting part; 422. Enclosure; 423. First snap-fit ​​part; 43. First shielding part; 50. Circuit board; 60. Protective plate; 61. Rib; 62. Flanged edge; 63. Protrusion; 631. Recess; 70. Second connector. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that, for ease of description and understanding, the terms "front", "rear", "up", "down", "left" and "right" in this embodiment refer to the state when the indoor unit of the air conditioner is installed on the wall. The direction in which the indoor unit of the air conditioner faces the user is front, the direction in which it faces away from the user is rear, and the vertical direction is up and down.

[0033] Figure 1 An exploded structural diagram of an air conditioner indoor unit according to an embodiment of this application is shown.

[0034] Please see Figure 1 An embodiment of the present application of an air conditioner indoor unit includes a base 10, a housing 20, a panel 30, a heat exchanger, a fan assembly, and an electrical box 40.

[0035] The base 10 is used to fix the unit to the wall. The base 10 supports the outer casing 20 and can prevent the bottom structure from being damaged or corroded. It can also prevent vibration and shaking caused by uneven walls or external forces, thereby improving the stability and lifespan of the unit.

[0036] The outer casing 20 is connected to the base 10. The outer casing 20 has a first chamber and a second chamber spaced apart along its width.

[0037] Panel 30 is located on the front side of housing 20 and is connected to housing 20. Panel 30 faces the user and serves to decorate the indoor unit of the air conditioner. For example, if panel 30 is fixed to housing 20, it can form a safe space to protect the heat exchanger and fan components inside the indoor unit of the air conditioner from physical damage or other contamination, thereby improving the service life of the air conditioner. Air outlets and air inlets are formed on panel 30, for example.

[0038] A heat exchanger is disposed within the first chamber, for example, at the rear of the housing 20. A fan assembly is disposed within the first chamber. The fan assembly draws airflow from outside the housing 20 into the first chamber through the air inlet, where it is heated by the heat exchanger and discharged outwards through the air outlet.

[0039] When the indoor unit of the air conditioner is running, driven by the fan assembly, indoor air enters the first chamber inside the panel 30 from the air inlet, exchanges heat with the heat exchanger, and is discharged from the air outlet under the drive of the fan assembly, thereby raising or lowering the indoor temperature.

[0040] Please see Figures 2 to 5 The electrical box 40 is located in the second chamber. Inside the electrical box 40 is a circuit board 50 and various functional electrical components electrically connected to the circuit board 50. The electrical box 40 effectively protects the internal circuit board 50 and electrical components from external environmental influences, ensuring the normal operation and lifespan of the circuit board 50 and electrical components. Various functional control circuits for air conditioning operation, temperature display, and fan speed display are integrated on the circuit board 50. The circuit board 50 is equipped with terminals, which are electrically connected to various external functional devices via control lines, enabling control.

[0041] Please see Figure 4 The electrical box 40 includes a box body 41 and a box cover 42. The box body 41 is located in the second chamber and is connected to the base 10. The box cover 42 is placed on the box body 41. Optionally, the box cover 42 is flush with the panel 30.

[0042] The outer periphery of the cover 42 is provided with a first shielding part 43, and the outer shell 20 is provided with a first mounting port 21 for inserting the electrical box 40, which communicates with the second chamber. The electrical box 40 can be inserted into the second chamber through the first mounting port 21, thereby realizing the installation of the electrical box 40 on the base 10.

[0043] The first mounting opening 21 has a second shielding portion 22 circumferentially arranged on its wall, and the second shielding portion 22 extends into the second cavity. The first shielding portion 43 and the second shielding portion 22 have an overlapping area along the front-rear direction of the electrical box 40, and the overlapping area is arranged circumferentially around the box cover 42.

[0044] In the aforementioned air conditioner indoor unit, the electrical box 40 is inserted into the second cavity of the outer casing 20 through the first mounting port 21, connecting the box body 41 to the base 10, thus completing the installation of the electrical box 40 on the base 10. Since the first shielding part 43 and the second shielding part 22 have an overlapping area along the front-rear direction of the electrical box 40, and this overlapping area surrounds the circumference of the box cover 42, when observing the outer casing 20 along the front-rear direction of the air conditioner indoor unit, only the first shielding part 43 and the second shielding part 22 are visible, thus preventing the observation of the black seam surrounding the outer circumference of the electrical box 40, thereby eliminating the black seam defect. Furthermore, during the assembly operation of the box cover 42 and the box body 41, a certain lateral movement space is allowed between the box cover 42 and the box body 41, ensuring that the assembly requirements are met within the injection molding tolerance limits of the base 10 and the outer casing 20, improving the dimensional tolerance of manufacturing and assembly, and enhancing product quality and production efficiency.

[0045] In this embodiment, the "first shielding part 43" can be a "part of the box cover 42", that is, the "first shielding part 43" is integrally formed with the "other parts of the box cover 42"; or it can be a separate component that can be separated from the "other parts of the box cover 42", that is, the "first shielding part 43" can be manufactured independently and then combined with the "other parts of the box cover 42" to form a whole. For example, the first shielding part 43 includes, but is not limited to, a protruding edge formed by extending outward from the outer periphery of the box cover 42.

[0046] In this embodiment, the "second shielding part 22" can be a "part of the outer shell 20," meaning that the "second shielding part 22" is integrally formed with the "other parts of the outer shell 20"; or it can be a separate component that can be separated from the "other parts of the outer shell 20," meaning that the "second shielding part 22" can be manufactured independently and then combined with the "other parts of the outer shell 20" to form a whole. For example, the second shielding part 22 includes, but is not limited to, a stop structure formed by extending inward from the wall of the first mounting opening 21.

[0047] Please see Figure 4 For example, the second shielding portion 22 includes, but is not limited to, a curved edge. This ensures that the cover 42 is flush with the front side of the outer casing 20, and that the second shielding portion 22 and the first shielding portion 43 overlap in the front-rear direction of the electrical box 40. In other words, the gap between the first shielding portion 43 and the wall of the first mounting opening 21 is completely covered by the second shielding portion 22, preventing the black seam from being observed. Specifically, the second shielding portion 22 includes a first edge 221 and a second edge 222. Both the first edge 221 and the second edge 222 are arranged circumferentially around the first mounting opening 21. One end of the first edge 221 is connected to the wall of the first mounting opening 21, and the first edge 221 is angled to the front side of the outer casing 20. The other end of the first edge 221 is connected to the second edge 222, and the second edge 222 is spaced apart from the first shielding portion 43 in the front-rear direction.

[0048] The second blocking edge 222 can be set as a straight edge, an L-shaped edge, or other shapes. It can be flexibly adjusted and set according to actual needs, as long as it has an overlapping area with the first shielding part 43 in the front-back direction.

[0049] For example, the outer wall of the first shielding part 43 is flush with the front side of the cover 42, so that the front side of the electrical box 40 is flat and, in this case, the front side of the electrical box 40 is flush with the front side of the outer casing 20.

[0050] For example, the lid 42 includes a cover plate 421 and a surrounding plate 422. The cover plate 421 is connected to the surrounding plate 422, and the surrounding plate 422 is fitted into the box body 41. Thus, the surrounding plate 422 seals the opening of the box body 41, improving fire resistance. Specifically, the surrounding plate 422 extends into the box body 41. Optionally, the first shielding portion 43 is specifically arranged around the outer periphery of the cover plate 421, and for example, flush with the cover plate 421.

[0051] As a specific example, the inner wall of the box body 41 is provided with a step 411, and the surrounding plate 422 extends into the box body 41 and abuts against the step 411. In this way, the step 411 supports the surrounding plate 422, thereby making the box lid 42 securely mounted on the box body 41.

[0052] As a specific example, one end of the second shielding part 22 is connected to the wall of the first mounting port 21, and the other end of the second shielding part 22 is a free end, forming a second mounting port 223. The diameter of the second mounting port 223 is smaller than the diameter of the first mounting port 21. The diameter of the first mounting port 21 is larger than the outer diameter of the first shielding part 43 and the outer diameter of the box body 41. The diameter of the second mounting port 223 is larger than the outer diameter of the box body 41 and the outer diameter of the surrounding plate 422, and the diameter of the second mounting port 223 is smaller than the outer diameter of the first shielding part 43. Thus, the box body 41 and the surrounding plate 422 are both inserted into the second chamber through the first mounting port 21 and the second mounting port 223, and the first shielding part 43 is disposed within the first mounting port 21.

[0053] In one embodiment, the first shielding portion 43 and the opening of the box body 41 are spaced apart along the front-to-back direction. The second stop 222 forms a second mounting opening 223, and is fitted over the surrounding plate 422, located between the first shielding portion 43 and the opening of the box body 41. This design allows the first shielding portion 43 and the second shielding portion 22 to overlap in the front-to-back direction, while maintaining a compact overall structure that does not increase the product's size. During assembly, the lid 42 allows for some lateral movement relative to the box body 41, improving dimensional tolerances in manufacturing and assembly, thereby enhancing product quality and production efficiency.

[0054] For example, the lid 42 is integrally injection molded from a fire-retardant and insulating material. Alternatively, the lid 42 may be made of, but is not limited to, BMC (Bulk Molding Compound) thermosetting plastic material, thus possessing fire-retardant and insulating properties. However, research has found that the mechanical strength of the surface impact resistance of the lid 42 made of BMC material does not meet the requirements of some markets with UL certification requirements.

[0055] Please see Figure 1 and Figure 4 or Figures 7 to 13 Based on this, in one embodiment, the indoor unit of the air conditioner also includes a protective plate 60. The protective plate 60 is made of fire-resistant and insulating material and is fixedly connected to the inner side wall of the cover 42. Specifically, the protective plate 60 is fitted and fixed to the inner side wall of the cover plate 421. Thus, because the protective plate 60 has fire-resistant and insulating properties, its combination with the cover 42 further improves the fire-resistant and insulating performance; in addition, the connection between the protective plate 60 and the cover 42 increases the structural strength of the cover 42 and improves its protective performance, thereby meeting the mechanical impact strength requirements of UL certification.

[0056] For example, similar to the lid 42, the box body 41 may be integrally injection molded from a fire-resistant and insulating material. Alternatively, the box body 41 may be made from BMC material, thus possessing fire-resistant and insulating properties.

[0057] Please see Figure 4 , Figure 8 and Figure 13 For example, the protective plate 60 has a plurality of ribs 61 arranged at intervals on the side facing the lid 42. Each rib 61 abuts against the inner wall of the lid 42. In this way, on the one hand, the ribs 61 have a cushioning effect, which helps the protective plate 60 to fit snugly against the inner wall of the lid 42, making assembly easier than fitting two flat surfaces together and improving the flatness after assembly; on the other hand, the ribs 61 increase the overall structural strength of the protective plate 60.

[0058] Based on the aforementioned embodiments, all reinforcing bars 61 are arranged at equal intervals or at unequal intervals. The specific arrangement can be flexibly adjusted and set according to actual needs, and is not limited here.

[0059] For example, the outer periphery of the protective panel 60 is provided with a flange 62 that folds towards the inner wall opposite to the lid 42. Thus, the flange 62 increases the structural strength of the protective panel 60. Specifically, the flange 62 is, for example, a right-angle flange 62, that is, it is set perpendicular to the protective panel 60. Furthermore, the flange 62 fits against the inner wall of the surrounding panel 422, thereby allowing the protective panel 60 to be stably positioned inside the lid 42.

[0060] It should be noted that the connection methods between the cover 42 and the body 41 include, but are not limited to, snap-fit, abutting along the front and rear direction of the electrical box 40, bonding, fastening with screws, pins, rivets, etc. The specific connection can be flexibly adjusted and set according to actual needs, as long as the connection and fixation between the cover 42 and the body 41 can be achieved.

[0061] Please see Figure 6 , Figure 10 and Figure 11 For example, the lid 42 is provided with a first snap-fit ​​portion 423, and the body 41 is provided with a second snap-fit ​​portion 412. The first snap-fit ​​portion 423 and the second snap-fit ​​portion 412 engage with each other. In this way, the lid 42 and the body 41 can be fixedly assembled together, and the lid 42 is not easy to fall off the body 41.

[0062] Please see Figure 6 , Figure 7 and Figure 11 For example, the cover plate 421 of the box cover 42 is provided with a first mounting part 4211, and the box body 41 is provided with a second mounting part 413 corresponding to the position of the first mounting part 4211. The air conditioner indoor unit also includes a first connector (not shown in the figure), and the first mounting part 4211 and the second mounting part 413 are fixedly connected by the first connector. In this way, the box cover 42 and the box body 41 can be fixedly assembled together, and the box cover 42 is not easy to fall off the box body 41.

[0063] Optionally, the first connector may include, but is not limited to, screws, pins, rivets, or snap-fit ​​components. Both the first mounting portion 4211 and the second mounting portion 413 have mounting holes adapted to the first connector.

[0064] In one embodiment, the front side of the cover 42 is provided with a power indicator, and a through hole 4212 is formed on the cover plate 421 of the cover 42. The electrical box 40 also includes a switch button. The switch button extends into the second chamber through the through hole 4212 and is electrically connected to the circuit board 50, enabling the circuit board 50 to connect to or disconnect the power supply. The power indicator serves to mark the position of the through hole 4212, thereby facilitating the operation of the switch button to connect or disconnect the power supply.

[0065] Please see Figure 4 , Figure 9 and Figure 11 For example, the cover 42 is provided with a positioning groove 4213, which is arranged adjacent to the through hole 4212. The circuit board 50 is snapped and fixed in the positioning groove 4213, thereby ensuring that the switch button connected to the circuit board 50 corresponds to the position of the through hole 4212, so that it can pass through the through hole 4212.

[0066] It should be noted that the connection method between the protective plate 60 and the cover plate 421 of the box cover 42 includes, but is not limited to, snap-fitting, bonding, welding, or fastening with screws, pins, rivets, etc. The specific connection method can be flexibly adjusted and set according to actual needs, as long as the connection and fixation between the protective plate 60 and the box cover 42 can be achieved.

[0067] Please see Figure 11 and Figure 13 For example, the indoor unit of the air conditioner also includes a second connector 70. The protective plate 60 is connected and fixed to the cover 42 via the second connector 70. The protective plate 60 has a protrusion 63 on its side facing away from the cover 42, and the protrusion 63 has a recess 631. The head of the second connector 70 is located within the recess 631. Thus, the head of the second connector 70 is surrounded by the protrusion 63, effectively isolating the second connector 70 from direct electrical contact with the wiring inside the electrical box 40, thereby improving safety performance.

[0068] In this embodiment, the second connector 70 is specifically, for example, a screw. The head of the second connector 70 is located in the recess 631, and the second connector 70 passes through the protective plate 60 and is connected and fixed to the box cover 42.

[0069] For example, the cover plate 421 of the box cover 42 is provided with a third mounting portion 4214. The thickness of the third mounting portion 4214 is greater than the thickness of the rest of the cover plate 421, and the third mounting portion 4214 is connected and fixed to the second connector 70. In this way, the thickness of the cover plate 421 corresponding to the position where the second connector 70 is installed is increased, thereby ensuring that the protective plate 60 can be installed securely; at the same time, since the other parts of the cover plate 421 do not need to be provided with the second connector 70, the thickness does not need to be increased, which saves materials.

[0070] For example, multiple third mounting parts 4214 and multiple second connectors 70 are provided, and multiple second connectors 70 are connected to multiple third mounting parts 4214 respectively. In this way, the protective plate 60 is connected and fixed to the cover 42 by multiple second connectors 70, so that the protective plate 60 can be stably installed on the cover 42.

[0071] It should be noted that the connection method between the box body 41 and the base 10 includes, but is not limited to, snap-fitting, gluing, welding, or fastening with screws, pins, rivets, etc. The specific connection method can be flexibly adjusted and set according to actual needs, as long as the connection and fixation between the box body 41 and the base 10 can be achieved.

[0072] Please see Figure 1 and Figure 6 For example, the housing 41 has a third snap-fit ​​portion, and the base 10 has a fourth snap-fit ​​portion 11, with the third snap-fit ​​portion and the fourth snap-fit ​​portion 11 snapped together and fixed. Furthermore, the housing 41 has a fourth mounting portion 414, and the base 10 has a fifth mounting portion 12 corresponding to the position of the fourth mounting portion 414. The indoor unit of the air conditioner also includes a third connector. The fourth mounting portion 414 and the fifth mounting portion 12 are fixedly connected via the third connector. With this configuration, the housing 41 is not only snapped and fixed to the base 10 via the third snap-fit ​​portion and the fourth snap-fit ​​portion 11, but also the fourth mounting portion 414 and the fifth mounting portion 12 are connected and fixed via the third connector, thereby achieving a stable installation on the base 10.

[0073] Optionally, the third connector may include, but is not limited to, screws, pins, or rivets, and can be flexibly adjusted and set according to actual needs. Both the fourth mounting part 414 and the fifth mounting part 12 are provided with mounting holes corresponding to the third connector.

[0074] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0075] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: Base; The outer casing is connected to the base, and the outer casing has a first chamber and a second chamber spaced apart along the width direction of the outer casing; A panel, located on the front side of the housing, connected to the housing, and having an air inlet and an air outlet; A heat exchanger is disposed within the first chamber; A fan assembly is disposed in the first chamber. The fan assembly introduces airflow from outside the outer casing into the first chamber through the air inlet, and the airflow is exchanged for heat through the heat exchanger and then output to the outside through the air outlet. An electrical box, disposed within the second chamber, comprises: A box body, wherein the box body is disposed in the second cavity and is connected to the base; and A box cover is provided on the box body. A first shielding part is provided around the outer periphery of the box cover. The outer shell is provided with a first mounting port for inserting the electrical box. The first mounting port communicates with a second chamber. A second shielding part is provided around the circumference of the first mounting port. The second shielding part extends into the second chamber. The first shielding part and the second shielding part have an overlapping area along the front-back direction of the electrical box. The overlapping area is arranged around the circumference of the box cover.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The second shielding part includes a first baffle and a second baffle; the first baffle and the second baffle are both arranged around the circumference of the first mounting opening, one end of the first baffle is connected to the opening wall of the first mounting opening, the first baffle is set at an angle to the front side of the housing, the other end of the first baffle is connected to the second baffle, and the second baffle and the first shielding part are spaced apart in the front-back direction.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The box cover includes a cover plate and a surrounding plate. The cover plate is connected to the surrounding plate, and the surrounding plate is fitted into the box body. The first shielding part is arranged around the outer periphery of the cover plate and is flush with the cover plate.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, One end of the second shielding part is connected to the wall of the first mounting port, and the other end of the second shielding part is set as a free end and forms a second mounting port; the diameter of the second mounting port is smaller than the diameter of the first mounting port; the diameter of the first mounting port is larger than the outer diameter of the first shielding part and the outer diameter of the box body; the diameter of the second mounting port is larger than the outer diameter of the box body and the outer diameter of the surrounding plate, and the diameter of the second mounting port is smaller than the outer diameter of the first shielding part.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The indoor unit of the air conditioner also includes a protective plate, which is a plate made of fireproof and insulating material and is fixedly connected to the inner wall of the cover.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The protective plate has a plurality of ribs arranged at intervals on the side facing the box cover, and each of the ribs abuts against the inner sidewall of the box cover; and / or, the outer periphery of the protective plate has a flange that folds away from the inner sidewall of the box cover.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The cover is provided with a first snap-fit ​​part, and the body is provided with a second snap-fit ​​part, the first snap-fit ​​part and the second snap-fit ​​part snap-fit ​​together; and / or, the cover plate of the cover is provided with a first mounting part, the body is provided with a second mounting part corresponding to the position of the first mounting part, and the indoor unit of the air conditioner also includes a first connector, the first mounting part and the second mounting part are fixedly connected through the first connector.

8. The indoor unit of the air conditioner according to claim 5, characterized in that, The indoor unit of the air conditioner also includes a second connector. The protective plate is connected and fixed to the cover through the second connector. The protective plate has a protrusion on the side opposite to the cover. The protrusion has a groove. The head of the second connector is located in the groove.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The cover plate of the box lid is provided with a third mounting part, the thickness of the third mounting part is greater than the thickness of the rest of the cover plate, and the third mounting part is connected and fixed to the second connector.

10. The indoor unit of an air conditioner according to any one of claims 1 to 9, characterized in that, The box body is provided with a third snap-fit ​​part, and the base is provided with a fourth snap-fit ​​part. The third snap-fit ​​part and the fourth snap-fit ​​part are snap-fitted and fixed together. The box body is provided with a fourth mounting part, and the base is provided with a fifth mounting part that corresponds to the position of the fourth mounting part. The indoor unit of the air conditioner also includes a third connector. The fourth mounting part and the fifth mounting part are fixedly connected through the third connector.

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