Indoor unit of air conditioner hanging unit

Abstract

The utility model discloses an indoor unit of an air conditioner hanging unit, which comprises a casing, an air inlet, an air outlet, an air inlet, an air outlet, an air inlet and an air outlet, wherein the front side of the casing is provided with an air inlet; the base is arranged in the shell and is provided with a purification air duct and a main air duct communicated with the purification air duct; the purification air duct and the main air duct are both communicated with the air inlet and the air outlet; the evaporation assembly is arranged in the main air duct, so that air flow in the main air duct passes through the evaporation assembly; the purifying and filtering structure comprises a first filtering piece and a second filtering piece, the first filtering piece, the second filtering piece and the purifying air duct are matched to form a purifying cavity, and airflow in the purifying air duct passes through the first filtering piece and the second filtering piece; the supporting protection assembly is arranged on the base and located above the main air duct. According to the utility model, the purification air duct is connected with the main air duct in series, so that the air temperature adjusting effect can be improved; and the main air duct and the purification air duct can be effectively utilized to increase the air volume, and air introduced into a room can be purified and filtered into fresh air by arranging the purification and filtration structure.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an indoor unit of a wall-mounted air conditioner. Background Art

[0002] Research shows that indoor air pollution far exceeds outdoor air pollution: during smoggy weather, dirty outdoor air enters the room through doors and windows, and toxic gases continuously emitted from indoor decoration materials, paints, furniture, etc. accumulate indoors. Second-hand smoke, kitchen fume pollution, etc. cause indoor air pollution to be more than 5 times more serious than outdoor air pollution. Therefore, in the prior art, a fresh air air conditioner integrated machine is provided to adjust the temperature and clean the indoor air, thereby improving the indoor air quality.

[0003] Generally, most of the fresh air devices are installed in the indoor unit of the wall-mounted air conditioner. Under the structural setting that ensures the fresh air supply volume, the length of the indoor unit is too long, which is not conducive to controlling the size of the indoor unit. In view of this, the present utility model is proposed. Summary of the Utility Model

[0004] The utility model discloses an indoor unit of a wall-mounted air conditioner, which studies and improves the existing structure and deficiencies, and provides an indoor unit of a wall-mounted air conditioner to achieve a better practical value.

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] An indoor unit of a wall-mounted air conditioner, comprising:

[0007] A housing, having an air inlet at its front side and an air outlet above its rear side;

[0008] A base, disposed inside the housing, having a purification air duct and a main air duct communicating with the purification air duct; both the purification air duct and the main air duct communicate with the air inlet and the air outlet;

[0009] An evaporation assembly, disposed in the main air duct so that the air flow in the main air duct passes through the evaporation assembly;

[0010] A purification and filtration structure, comprising a first filter element and a second filter element. The first filter element, the second filter element and the purification air duct cooperate to form a purification chamber, and the air flow in the purification air duct passes through the first filter element and the second filter element;

[0011] A support and protection assembly, disposed on the base and above the main air duct to support and protect the main air duct.

[0012] In some embodiments, a main fan is disposed in the main air duct; a purification fan is disposed in the purification air duct, and the main fan is connected to the purification fan.

[0013] In some embodiments, the main blower and the purification blower are connected by a coupling, and a sliding gear is further provided at one end of the coupling close to the purification blower.

[0014] In some embodiments, a first mounting portion is further provided on the base at one end of the main air duct away from the purification air duct. A driving motor is provided on the first mounting portion, and the driving motor is connected to the main blower to drive the main blower to rotate, thereby driving the purification blower to rotate.

[0015] In some embodiments, the evaporation assembly includes an evaporator and an evaporator end plate that is snap-fitted with one end face of the evaporator. The evaporator is disposed in a semi-surrounding shape outside the main air duct so that the air flow in the main air duct passes through the evaporator. The evaporator end plate is matched with the end face of the driving motor so that the driving motor is fixedly installed in the first mounting portion to prevent displacement.

[0016] In some embodiments, a first blocking portion and a second blocking portion are respectively provided at both ends above the purification air duct. An extension plate is horizontally provided below the purification air duct. The first filter element is distributed in a semi-surrounding shape outside the purification air duct. The first filter element includes a filter element main body, a first stop member and a second stop member protruding from both sides above the filter element main body, and a clamping member obliquely provided below the filter element main body. The first stop member and the second stop member are respectively adjacent to or abutted against the first blocking portion and the second blocking portion from two opposite directions in the horizontal direction, and the clamping member is longitudinally clamped and matched with the extension plate.

[0017] In some embodiments, the first blocking portion and the second blocking portion are two stop baffles that are opposite and parallel to each other. The first stop member and the second stop member are stop protrusions protruding from the upper part of the rear end of the filter element main body in a direction perpendicular to the filter element main body. The extension plate is an outwardly inclined baffle extending from the bottom plate of the main air duct in a direction close to the purification air duct. The clamping member is an inclined baffle extending inward from the lower front end of the filter element main body.

[0018] In some embodiments, at least two mounting posts are further provided on the periphery of the purification air duct, and communication holes are provided on the at least two mounting posts. At least two first mounting holes corresponding to the positions of the at least two mounting posts are provided on the filter element main body. The first filter element is fixedly installed on the purification air duct by bolts.

[0019] In some embodiments, the second filter is disposed at one end of the purification air duct away from the main air duct to form the purification chamber together with the first filter and the purification air duct. The second filter is provided with a hollow structure so that the purification air duct is communicated with the air inlet and the air outlet.

[0020] In some embodiments, the support and protection assembly includes a V-shaped protective cover, and the V-shaped protective cover is embedded in the base and located above the main air duct.

[0021] The present utility model has the following advantages:

[0022] By connecting the purification air duct in series with the main air duct, when the air conditioner operates in the air conditioning mode, the temperature of the air introduced into the room is adjusted. On the one hand, the temperature adjustment effect on the air can be improved; on the other hand, the main air duct and the purification air duct can be effectively utilized to increase the air volume. Moreover, by setting the purification and filtration structure, the air introduced into the room can be purified and filtered into fresh air, and the fresh air is discharged into the main air duct. Under the action of the main fan, fresh air is formed, and the fresh air is blown into the indoor space through the air outlet, so that the indoor air maintains a high freshness, thereby improving the comfort brought by the indoor air and avoiding a stuffy feeling. Further, the series connection of the purification air duct and the main air duct can save space and improve the overall performance of the indoor unit of the air conditioner hanging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 1 is a perspective structural view of an indoor unit of an air conditioner hanging machine proposed by the present utility model.

[0024] Figure 2 is Figure 1 a top view of the indoor unit of the air conditioner hanging machine shown in FIG. 1 after removing the first cover.

[0025] Figure 3 is Figure 1 a perspective structural view of the indoor unit of the air conditioner hanging machine shown in FIG. 1 after removing the housing.

[0026] Figure 4 is Figure 3 a partial exploded view of the indoor unit of the air conditioner hanging machine shown in FIG. 1 after removing the housing and the box body.

[0027] Figure 5 is Figure 3 a partial perspective structural view of the indoor unit of the air conditioner hanging machine shown in FIG. 1 after removing the housing, the evaporation assembly and the purification and filtration structure.

[0028] Figure 6 is Figure 3 a partial perspective structural view of the indoor unit of the air conditioner hanging machine shown in FIG. 1 after removing the housing, the evaporation assembly and the main fan, etc.

[0029] Figure 7 The Figure 3 three-dimensional structural schematic diagram of the base of the indoor unit of the wall-mounted air conditioner shown in the figure.

[0030] Figure 8 The Figure 7 partial enlarged view of part A of the base of the indoor unit of the wall-mounted air conditioner shown in the figure.

[0031] Figure 9 The Figure 3 three-dimensional structural schematic diagram of the purification and filtration structure of the indoor unit of the wall-mounted air conditioner shown in the figure.

[0032] Figure 10 The Figure 9 three-dimensional structural schematic diagram of the purification and filtration structure from another perspective shown in the figure.

[0033] Figure 11 The Figure 3 three-dimensional structural schematic diagram of the support and protection component of the indoor unit of the wall-mounted air conditioner shown in the figure. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0035] As Figures 1 to 11 shown, a wall-mounted air conditioner indoor unit disclosed by the present utility model may include, in some embodiments, a housing 10, an air inlet 101 for allowing air flow to flow into it is provided on its front side, and an air outlet 102 for allowing air flow to flow out is provided above its rear side; a base 20, which is disposed inside the housing 10, and is provided with a purification air duct 21 and a main air duct 22 communicating with the purification air duct 21; both the purification air duct 21 and the main air duct 22 are communicated with the air inlet 101 and the air outlet 102; an evaporation assembly 30, which is disposed in the main air duct 22 so that the air flow in the main air duct 22 passes through the evaporation assembly 30; a purification and filtration structure 40, which includes a first filter element 41 and a second filter element 42, the first filter element 41, the second filter element 42 and the purification air duct 21 cooperate to form a purification chamber, and the air flow in the purification air duct 21 passes through the first filter element 41 and the second filter element 42; a support and protection component, which is disposed on the base 20 and above the main air duct 22 to support and protect the main air duct 22.

[0036] As Figures 1 to 3 shown, in some embodiments, the housing 10 is used to mount the base 20, and the base 20 is used to support the evaporation assembly 30, the purification and filtration structure 40, and the support and protection assembly. The evaporation assembly 30 is used to perform heat exchange with the airflow flowing through it. The purification and filtration structure 40 is used to purify and filter the airflow flowing through it. The support and protection assembly is used to support and protect the main air duct 22.

[0037] As Figure 4 and Figure 5 shown, in some embodiments, a main fan 60 is provided in the main air duct 22; a purification fan 70 is provided in the purification air duct 21, and the main fan 60 is connected to the purification fan 70. The main fan 60 and the purification fan 70 are connected by a coupling shaft 80, and a sliding gear 90 is further provided at one end of the coupling shaft 80 close to the purification fan 70. A first mounting portion 23 is further provided on the base 20 at one end of the main air duct 22 away from the purification air duct 21, and a driving motor 100 is provided on the first mounting portion 23. The driving motor 100 is connected to the main fan 60 to drive the main fan 60 to rotate, thereby driving the purification fan 70 to rotate. The evaporation assembly 30 includes an evaporator 31 and an evaporator end plate 32 that is snap-fitted with one end surface of the evaporator 31. The evaporator 31 is disposed in a semi-surrounding manner outside the main air duct 22 so that the airflow in the main air duct 22 passes through the evaporator 31. The evaporator end plate 32 is engaged with the end surface of the driving motor 100 so that the driving motor 100 is fixedly installed in the first mounting portion 23 to prevent displacement. The main fan 60 and the purification fan 70 may specifically be cross-flow fans, axial fans, or centrifugal fans. In this embodiment, the main fan 60 and the purification fan 70 are specifically cross-flow fans.

[0038] As Figure 2 shown, in some embodiments, the housing 10 may include a cover shell 11 covering the base 20. The air outlet 102 is provided above the front side of the cover shell 11, and the air inlet 101 is provided on the cover shell 11. A plurality of grids are provided on the air inlet 101, which are used to make the air enter the indoor of the air conditioner evenly. A plurality of first ribs 111 spaced from the air outlet 102 are formed on the top surface of the cover shell 11. The plurality of first ribs 111 are cross-arranged, which are used to improve the stability of the cover shell 11. The cover shell 11 further includes a mounting groove 112 provided on the side of the first rib 111 and a through hole 113 communicating with the mounting groove 112. In some embodiments, the housing 10 further includes a first cover plate 12 covering the plurality of first ribs 111, the mounting groove 112, and the through hole 113, and a second cover plate 13 covering a part of the air outlet 102.

[0039] Refer to together Figures 6 to 10, in some embodiments, the base 20 may include a purification air duct 21, a main air duct 22 communicating with the purification air duct 21, a first mounting portion 23, a second mounting portion 24, a bottom plate 25, and a drainage structure disposed above the main air duct 22. The purification air duct 21, the main air duct 22 communicating with the purification air duct 21, the first mounting portion 23, and the second mounting portion 24 are all disposed on the bottom plate 25. Specifically, the purification air duct 21 and the main air duct 22 are connected in parallel, the first mounting portion 23 is disposed at one end of the main air duct 22 away from the purification air duct 21, and the second mounting portion 25 is disposed at one end of the purification air duct 21 away from the main air duct 22.

[0040] In some embodiments, the purification air duct 21 is arc-shaped, and a first blocking portion 211 and a second blocking portion 212 are respectively disposed at two ends above it. An extension plate 213 is horizontally disposed below the purification air duct 21. The first filter element 41 is distributed in a semi-surrounding shape outside the purification air duct 21. The first filter element 41 includes a filter element main body 411, a first stop member 412 and a second stop member 413 protruding from both sides above the filter element main body 411, and a clamping member 414 inclined below the filter element main body 411. The first stop member 412 and the second stop member 413 respectively approach or abut against the first blocking portion 211 and the second blocking portion 212 from two opposite directions in the horizontal direction, and the clamping member 414 is in longitudinal clamping cooperation with the extension plate 213. Specifically, the first blocking portion 211 and the second blocking portion 212 are two stop baffles that are opposite and parallel to each other. The first stop member 412 and the second stop member 413 are stop protrusions protruding from the upper part of the rear end of the filter element main body 411 in a direction perpendicular to the filter element main body 411. The extension plate 213 is an outwardly inclined baffle extending from the bottom plate of the main air duct 22 in the direction close to the purification air duct 21, and the clamping member 414 is an inclined baffle extending inward from the lower front end of the filter element main body 411. Through the longitudinal clamping cooperation of the first blocking portion 211 and the second blocking portion 212 with the first stop member 412 and the second stop member 413 respectively, and the longitudinal clamping cooperation of the clamping member 414 with the extension plate 213, it can quickly and effectively position the first filter element 41, and production and assembly personnel do not need to perform other additional auxiliary positioning operations, saving operation time and improving production efficiency.

[0041] At least two mounting posts 201 are also provided on the peripheral side of the purification air duct 21. In this embodiment, five mounting posts 201 are provided, and five communication holes 202 are provided on the five mounting posts 201. Three first mounting holes 415 corresponding to the positions of three of the mounting posts 201 are provided on the filter element main body 411. The first filter element 41 is fixedly installed on the purification air duct 21 by using bolts to pass through the three first mounting holes 415 and the three mounting posts 201. The second filter element 42 is arranged at one end of the purification air duct 21 away from the main air duct 22 to form a purification chamber with the first filter element 41 and the purification air duct 21. The second filter element 42 is provided with a hollow structure so that the purification air duct 21 is communicated with the air inlet 101 and the air outlet 102. Two second mounting holes 421 corresponding to the positions of the other two mounting posts 201 are provided on the second filter element 42. The second filter element 42 is fixedly installed on the purification air duct 21 by using bolts to pass through the two second mounting holes 421 and the two mounting posts 201. It can be understood that the number of the mounting posts 201, the first mounting holes 415, and the second mounting holes 421 can be one or more, and they are set according to requirements to install the first filter element 41 and the second filter element 42 on the purification air duct 21. The first filter element 41 and the second filter element 42 can be used to purify and filter the air passing through the purification air duct 21. And because the main blower 60 and the purification blower 70 are connected by a coupling shaft 80, when the indoor unit of the air conditioner is running, the indoor air enters the purification air duct 21 through the air inlet 101, and after passing through the first filter element 41 and the second filter element 42, it is discharged into the main air duct 22 under the action of the purification blower 70, and then enters the room through the air outlet 102 under the action of the main blower 60 after passing through the evaporator 31. In this process, because the first filter element 41 and the second filter element 42 can purify and filter the wind introduced into the room into fresh wind, the fresh wind is discharged into the main air duct 22, and fresh wind is formed under the action of the main blower 60. And the fresh wind passes through the evaporator 31 and is blown out after being cooled / heated by the air conditioner, so that the temperature of the fresh wind can be effectively adjusted, thereby reducing the large temperature difference between the outdoor fresh air and the indoor air and improving the user experience. The main blower 60 and the purification blower 70 are connected by a coupling shaft 80. When the drive motor 100 is started, the main blower 60 and the purification blower 70 work simultaneously. It can meet the large demand for air supply volume to achieve rapid cooling / heating and large-air-volume cooling / heating. While meeting the air supply volume, it can also save space and improve the overall performance of the indoor unit of the air conditioner.

[0042] In some embodiments, the main air duct 22 may be arc-shaped and is used to mount the main fan 60. Water blocking strips 26 are respectively formed on the side walls at both ends of the main air duct 22, which are used to prevent condensed water from entering the main air duct 22 and flowing towards the electrical components on both sides of the main air duct 22, further preventing short circuits and electric leakage. A groove 231 is provided on the side wall of the first mounting portion 23 close to the main air duct 22. In some embodiments, the groove 231 may be arc-shaped and is used to mount the drive motor 100. A folded mounting groove 232 is formed on the first mounting portion 23, and a U-shaped card slot 233 is provided at the bottom of the folded mounting groove 232. Two connecting columns 234 are provided on the side wall of the first mounting portion 23 away from the main air duct 22, and openings are provided on both of the two connecting columns 234.

[0043] The drainage structure includes a first drainage surface 271 spaced above the main air duct 22. A baffle 272 is vertically provided at the bottom end of the first drainage surface 271, and a partition 273 parallel to the baffle 272 is provided in the middle thereof. A support rod 110 is provided between the baffle 272 and the main air duct 22. Drainage channels 274 are respectively provided at both ends of the first drainage surface 271, and a drain pipe 120 is provided on the bottom surface of the bottom plate 25. The drain pipe 120 is respectively connected to the two drainage channels 274. Connecting plates 275 are respectively vertically provided at both ends of the baffle 272. The two connecting plates 275 extend respectively at one end close to the main air duct 22 to form the water blocking strips 26, and the bottom of the water blocking strip 26 is circular arc.

[0044] Specifically, as Figure 7As shown, a drainage plate 276 is provided at the top of the first drainage surface 271. The width of the drainage plate 276 is equivalent to that of the partition plate 273, and a first drainage channel 2731 is formed between the drainage plate 276 and the partition plate 273. The width of the partition plate 273 is smaller than that of the baffle 272, which can prevent the condensed water on the first drainage surface 271 from dripping onto the main air duct 22. When there is too much condensed water, it will first drain through the first drainage channel 2731, which can prevent the condensed water from overflowing from the baffle 272. A second drainage channel 2732 is formed between the partition plate 273 and the baffle 272. A connecting channel 277 is provided between the first drainage channel 2731 and the second drainage channel 2732, and the connecting channel 277 connects the first drainage channel 2731 and the second drainage channel 2732. Notches 278 are respectively formed between the two connecting plates 275 and the drainage plate 276, and the notches 278 connect the drainage channel 274 with the first drainage channel 2731 and the second drainage channel 2732. Both the partition plate 273 and the baffle 272 are inclined in the direction close to the notch 278, that is, both the partition plate 273 and the baffle 272 are inclined in the flowing direction of the condensed water. Two second drainage surfaces 279 are respectively formed by extending the two ends of the first drainage surface 271 in the direction away from the connecting plate 275. The second drainage surfaces 279 are arc-shaped, and water collecting platforms 280 are respectively connected below the two second drainage surfaces 279. The drainage channel 274 is arranged between the second drainage surface 279 and the water collecting platform 280. When the condensed water on the drainage plate 276 flows to the first drainage channel 2731 via the first drainage surface 271, the condensed water will flow into the second drainage surface 279 along the notch. Since the second drainage surface 279 is arc-shaped and inclined, then the condensed water on the second drainage surface 279 will flow onto the drainage channel 274. The drainage channel 274 is connected to the drain pipe 120. Therefore, finally, the condensed water on the drainage channel 274 is discharged from the inside of the base 20 through the drain pipe 120. When the condensed water on the drainage plate 276 flows to the first drainage channel 2731 and the second drainage channel 2732 via the first drainage surface 271, since the baffle 272 is inclined, when the condensed water flows onto the baffle 272, the condensed water on the baffle 272 changes its flow direction and then successively passes through the connecting channel 277, the notch 278, the second drainage surface 279, the drainage channel 274 and the drain pipe 120 and flows out of the inside of the base 20.

[0045] The evaporator 31 can be a multi-fold evaporator in some embodiments. The multi-fold evaporator is distributed in a semi-surrounding shape outside the main fan 60 of the main air duct 22. A plurality of refrigerant U-shaped tubes 33 are provided in the evaporator 31. One end of the plurality of refrigerant U-shaped tubes 33 extends out of the evaporator 31, and the plurality of refrigerant U-shaped tubes 33 are snap-fitted with the evaporator end plate 32. The evaporator end plate 32 is a multi-section structure in some embodiments. A T-shaped clamping plate 321 is provided on the evaporator end plate 32. When the multi-section evaporator end plate 32 is installed in the folding installation groove 232, the U-shaped groove 233 is in close fit with the T-shaped clamping plate 321, and the fitting gap between the two is 1 mm, which can further fix the evaporator 31 and the evaporator end plate 32. Two card holes 322 corresponding to the positions of the two connecting columns 234 are also provided on the evaporator end plate 32, and the two connecting columns 234 are fixed in cooperation with the two card holes 322. An arc groove is formed at one end of the evaporator end plate 32 close to the folding installation groove 232, and the arc groove is in fit with the end face of the driving motor 100, which can enable the driving motor 100 to be better fixed in the groove 231.

[0046] As Figure 11 As shown, the support and protection assembly includes a V-shaped protective cover 51. The V-shaped protective cover 51 is embedded in the base 20 and is located above the main air duct 22. Specifically, the V-shaped protective cover 51 is arranged below the baffle 272. The V-shaped protective cover 51 is formed with a water collecting trough, which can further prevent the main fan 60 on the main air duct 22 from being short-circuited and leaking electricity. In some embodiments, the support and protection assembly further includes a fixing frame 52. The fixing frame 52 is arranged on the support rod 110 and is used to support the stable drainage structure. The fixing frame 52 includes a connecting rod 521 and a plurality of fixing ribs 522 uniformly distributed on the connecting rod 521. The plurality of fixing ribs 522 are connected in cooperation with the rear end of the V-shaped protective cover 51 and play a supporting role.

[0047] In some embodiments, the indoor unit of the air conditioner hanging machine further includes a box body 130 and a remote control structure 140. The box body 130 is arranged on the second installation part 24 and includes a first panel 131. The first panel 131 is close to the purification air duct 21, and the first panel 131 covers the end face of the hollowed-out part of the second filter element 42, and round holes are provided on the first panel 131. The remote control structure 140 is arranged in the installation groove 112 and is located above the box body 130, and is used to control the temperature of the indoor unit of the air conditioner hanging machine.

[0048] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and the inventive concept thereof shall be covered within the protection scope of the present invention.

Claims

1. An indoor unit of an air conditioner, characterized in that: include: The housing (10) is provided with an air inlet (101) at the front side and an air outlet (102) at the upper rear side; A base (20) is arranged inside the housing (10), and is provided with a purification air duct (21) and a main air duct (22) connected to the purification air duct (21); the purification air duct (21) and the main air duct (22) are both connected to the air inlet (101) and the air outlet (102); An evaporation component (30) is arranged in the main air duct (22) so that the airflow in the main air duct (22) passes through the evaporation component (30); A purification filter structure (40), comprising a first filter element (41) and a second filter element (42), wherein the first filter element (41), the second filter element (42) and a purification air duct (21) cooperate to form a purification chamber, and the airflow in the purification air duct (21) passes through the first filter element (41) and the second filter element (42); A supporting and protecting component is arranged on the base (20) and is located above the main air duct (22) to support and protect the main air duct (22).

2. The indoor unit of the air conditioner according to claim 1, characterized in that: A main fan (60) is provided in the main air duct (22); a purification fan (70) is provided in the purification air duct (21), and the main fan (60) is connected to the purification fan (70).

3. The indoor unit of the air conditioner according to claim 2, characterized in that: The main fan (60) is connected to the purification fan (70) via a connecting shaft (80), and a sliding gear (90) is provided at one end of the connecting shaft (80) close to the purification fan (70).

4. The indoor unit of the air conditioner according to claim 3, characterized in that: A first mounting portion (23) is also provided on the base (20) at one end of the main air duct (22) away from the purification air duct (21); a driving motor (100) is provided on the first mounting portion (23); the driving motor (100) is connected to the main fan (60) to drive the main fan (60) to rotate, thereby driving the purification fan (70) to rotate.

5. The indoor unit of the air conditioner according to claim 4, characterized in that: The evaporation component (30) comprises an evaporator (31) and an evaporator end plate (32) that is snap-fitted with one end surface of the evaporator (31); the evaporator (31) is arranged in a semi-enclosed shape on the outside of the main air duct (22) so that the airflow in the main air duct (22) passes through the evaporator (31); the evaporator end plate (32) is matched with the end surface of the drive motor (100) so that the drive motor (100) is fixedly installed in the first installation portion (23) to prevent displacement.

6. The indoor unit of the air conditioner according to claim 1, characterized in that: A first stopper (211) and a second stopper (212) are respectively arranged at two ends above the purification air duct (21); an extension plate (213) is transversely arranged below the purification air duct (21); the first filter element (41) is distributed on the outside of the purification air duct (21) in a semi-enclosed shape; the first filter element (41) comprises a filter element body (411), a first stopper (412) and a second stopper (413) protrudingly arranged on both sides above the filter element body (411), and a clamping element (414) obliquely arranged below the filter element body (411); the first stopper (412) and the second stopper (413) are respectively adjacent to or abut against the first stopper (211) and the second stopper (212) from two opposite directions in the transverse direction; and the clamping element (414) is clamped and matched with the extension plate (213) in the longitudinal direction.

7. The indoor unit of the air conditioner according to claim 6, characterized in that: The first stopper (211) and the second stopper (212) are two stopper plates arranged opposite to and in parallel with each other. The first stopper (412) and the second stopper (413) are stopper protrusions extending from the upper rear end of the filter element body (411) in a direction perpendicular to the filter element body (411). The extension plate (213) is an outwardly inclined baffle extending from the bottom plate of the main air duct (22) in a direction close to the purification air duct (21). The clamping member (414) is an inclined baffle extending inward from the lower front end of the filter element body (411).

8. The indoor unit of the air conditioner according to claim 7, characterized in that: At least two mounting posts (201) are also provided on the peripheral side of the purification air duct (21), and connecting holes (202) are provided on the at least two mounting posts (201). The filter element main body (411) is provided with at least two first mounting holes (415) corresponding to the positions of the at least two mounting posts (201), and the first filter element (41) is fixedly mounted on the purification air duct (21) by bolts.

9. The indoor unit of the air conditioner according to claim 8, characterized in that: The second filter element (42) is arranged at one end of the purification air duct (21) away from the main air duct (22) to form the purification chamber together with the first filter element (41) and the purification air duct (21); the second filter element (42) is hollowed out so that the purification air duct (21) is connected to the air inlet (101) and the air outlet (102).

10. The indoor unit of the air conditioner according to claim 1, characterized in that: The supporting protection assembly comprises a V-shaped protection cover (51), wherein the V-shaped protection cover (51) is embedded in the base (20) and is located above the main air duct (22).

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