Indoor unit and air conditioner

Abstract

The invention provides an indoor unit and an air conditioner, and the indoor unit comprises a middle frame shell, a middle frame shell, an air guide plate, a heat exchanger and a heat exchanger, one end of the wind shielding curtain is connected with the wind deflector, and the other end of the wind shielding curtain is mounted on the opening side, corresponding to the wind deflector, of the air outlet; when the air outlet is opened by the air deflector, the air blocking curtain and the air deflector form an air channel with a lateral air outlet arranged in the transverse direction, so that airflow output by the air outlet is guided out through the lateral air outlet. The technical problem that the use efficiency of the indoor unit is reduced due to the fact that a traditional air blocking curtain and a traditional air guide plate are independent in function in a middle frame shell and poor in cooperation and cooperation between the air blocking curtain and the air guide plate is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an indoor unit and an air conditioner. Background Art

[0002] When the indoor unit of the air conditioner is operated in cooling or heating mode, the air outlet direction is usually changed by adjusting the air outlet angle using an air guide plate.

[0003] Specifically, when the air conditioner is running the cooling function, in order to avoid direct blowing of cold wind, a wind shield is set on the outside of the middle frame. The wind shield blocks the airflow blowing out of the air outlet to achieve the effect of avoiding direct blowing of cold wind, thereby improving the user experience.

[0004] However, there is at least one of the following problems in the related art: the functions of the traditional wind shield curtain and the wind guide plate in the middle frame shell are independent of each other, and the coordination between the two is poor, resulting in reduced efficiency of the indoor unit. Summary of the invention

[0005] The technical problem solved by the present invention is that the functions of the traditional wind shield curtain and the wind guide plate in the middle frame shell are independent of each other, and the coordination between the two is poor, resulting in reduced efficiency of the indoor unit.

[0006] To solve the above problems, the present invention provides an indoor unit, comprising: a middle frame shell, the middle frame shell is provided with an air outlet, and an air guide plate is provided at the air outlet; a wind shield curtain, one end of the wind shield curtain is connected to the air guide plate, and the other end is installed to the open side of the middle frame shell corresponding to the air guide plate opening the air outlet; wherein, when the air guide plate opens the air outlet, the wind shield curtain and the air guide plate form an air duct with side air outlets arranged along the transverse direction, so that the airflow output from the air outlet can be discharged through the side air outlet.

[0007] Compared with the prior art, the technical effects achieved by adopting this technical solution are: on the one hand, the wind guiding distance between the wind shield and the wind guide plate is shortened, so that the airflow guided out from the air outlet can be fully blocked by the wind shield, thereby improving the blocking effect of the wind shield. Specifically, due to the actual size of the air outlet, the size of the wind guide plate adapted thereto is also smaller, and thus the inner cavity size of the air duct surrounded by the wind shield, the wind guide plate and the middle frame shell is also smaller, thereby further reducing the air outlet area formed by the divergence of the air flow from the air outlet into the indoor environment. That is, through the air duct of this technical solution, as much airflow as possible can be blocked by the wind shield before it leaves the guiding effect of the wind guide plate, so as to achieve the effect of air outlet from the side air outlet. On the other hand, since the wind shield is connected to the wind guide plate, the wind guide plate can adjust the air guide angle during the process. It can drive the wind shield curtain in real time so that the diameter of the side air outlet also changes in real time. Therefore, at any wind guide angle, effective stopping can be achieved through the wind shield curtain that matches it, and this process does not require manual operation and adjustment, and does not require additional adjustment mechanisms. While ensuring the stopping efficiency, the overall components of the indoor unit are simplified; in addition, the wind shield curtain in the present technical solution occupies a smaller area on the middle frame shell, so that the aesthetic impact on the appearance of the indoor unit is also smaller; in addition, when the air guide plate closes the air outlet, the linked wind shield curtain is also attached to the surface of the middle frame shell. Since the wind shield curtain is arranged on the open side of the air guide plate, the wind shield curtain covers the fitting gap formed between the air guide plate and the middle frame shell, which effectively prevents dust from accumulating in this area to a certain extent, ensuring the cleanliness of the air outlet when the air conditioner is used at the next moment.

[0008] In one embodiment of the present invention, when the air guide angle of the air outlet opened by the air guide plate changes, the air outlet size of the side air outlet is changed.

[0009] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the linkage efficiency of the wind guide plate and the wind shield curtain is improved.

[0010] In one embodiment of the present invention, when the wind guide angle increases, the cross-sectional area enclosed by the side air outlet increases.

[0011] Compared with the prior art, the technical effect achieved by adopting this technical solution is: further ensuring the linkage efficiency of the wind guide plate and the wind shield curtain.

[0012] In one example of the present invention, the windshield curtain is detachably connected to the middle frame shell and / or the wind guide plate.

[0013] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: in combination with the actual operation function of the air conditioner, for example, when the air conditioner is operating the cooling function, the wind shield is connected to the middle frame shell and the wind guide plate at the same time, so as to prevent the cold wind from blowing directly. When the air conditioner is operating the heating function, the wind shield is separated from either the middle frame shell or the wind guide plate, so that the warm air blown out from the air outlet can be directly introduced into the indoor environment through the wind guide plate without being blocked by the wind shield, ensuring efficient heat exchange between the indoor unit and the indoor environment in a short time, and avoiding the situation where the warm air is blocked and causes uneven heat exchange in different areas of the indoor environment.

[0014] In one example of the present invention, the windshield is snap-connected with the middle frame shell and / or the wind guide plate.

[0015] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the efficiency of disassembling and assembling the windshield curtain is further improved.

[0016] In one example of the present invention, the wind screen includes: a rolling curtain portion, the rolling curtain portion is connected to either a wind guide plate or a middle frame shell; a wind curtain portion, one end of the wind curtain portion is wound around the rolling curtain portion, and the other end cooperates with the other of the two; wherein an elastic member is provided in the rolling curtain portion, and the elastic member applies a pulling force to the wind curtain portion to increase the winding length of the wind curtain portion.

[0017] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by adding a rolling curtain part, the orderly retraction and storage of the wind curtain part is realized. The pulling force applied to the wind curtain part by the elastic member, combined with the connection between the wind curtain part and the wind guide plate, can keep the wind curtain in a straight state at all times, thereby playing a stable stopping effect for stopping the direct blowing of cold wind; in addition, when the wind curtain part is separated from the wind guide plate, the wind curtain part is orderly stored in the rolling curtain part under the pulling force of the elastic member, without removing the wind curtain as a whole from the middle frame shell, and when it is necessary to stop the direct blowing of cold wind at the next moment, the corresponding end of the wind curtain part can be connected to the wind guide plate. Therefore, in this technical solution, the connection relationship between the wind curtain, the middle frame shell and the wind guide plate can be adjusted in time according to the actual needs of the user, and there is no need to disassemble the wind curtain as a whole. Among them, by setting the rolling curtain part, the wind curtain part can be stored, which effectively avoids the dust accumulation caused by the wind curtain part being exposed to the indoor environment for a long time and affects the appearance of the indoor unit.

[0018] In one example of the present invention, the rolling curtain portion also includes a first rotating shaft, and the middle frame shell is provided with a first arc-shaped groove for accommodating the first rotating shaft; a first clamping piece is provided at one end of the wind curtain portion away from the rolling curtain portion, and the air guide plate is provided with a second clamping piece that is clamped with the first clamping piece; wherein, when the air guide plate opens the air outlet, the wind curtain portion is pulled to reduce the winding length.

[0019] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the windshield curtain is easy to disassemble and assemble.

[0020] In one embodiment of the present invention, either the first clamping member or the second clamping member is a second connecting shaft, and the other is a second arc groove; or, either the second clamping member or the second clamping member is a hook structure, and the other is a snap ring that cooperates with the hook structure.

[0021] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the efficiency of disassembling and assembling the windshield curtain is further improved.

[0022] In an example of the present invention, the wind curtain portion is a flexible member, and the second clamping member is disposed on the windward surface and / or leeward surface of the wind guide plate; and / or the wind curtain portion is provided with a plurality of air holes.

[0023] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: specifically, by adding multiple ventilation holes on the wind curtain, the effect of avoiding direct blowing of cold wind is ensured, and the heat exchange effect of different areas with the indoor environment is guaranteed, effectively avoiding the problem of low heat exchange efficiency of the indoor unit to the area in front of it due to air only being discharged from the side air outlet.

[0024] On the other hand, the present invention further provides an air conditioner, comprising: an indoor unit as in any of the above examples, wherein the middle frame shell is provided with an air inlet at its top end; and the wind shield curtain can cover or open the air inlet.

[0025] Compared with the prior art, the technical effect achieved by adopting this technical scheme is: on the one hand, it can achieve the technical effect corresponding to any of the above-mentioned technical schemes, which will not be repeated here; on the other hand, by enabling the wind shield curtain to cover the air inlet, the wind shield curtain can prevent dust and other insects from entering the air inlet when the indoor unit is on standby for a long time, thereby effectively keeping the interior of the indoor unit clean.

[0026] After adopting the technical solution of the present invention, the following technical effects can be achieved:

[0027] (1) On the one hand, the air guiding distance between the wind shield and the wind guide plate is shortened, so that the airflow guided out from the air outlet can be fully blocked by the wind shield, thereby improving the blocking effect of the wind shield. Specifically, due to the actual size of the air outlet, the size of the wind guide plate adapted thereto is also smaller, and thus the size of the inner cavity of the air duct surrounded by the wind shield, the wind guide plate and the middle frame shell is also smaller, thereby further reducing the air outlet area formed by the airflow diverging from the air outlet into the indoor environment. That is, through the air duct of the technical solution, as much airflow as possible can be blocked by the wind shield before it leaves the guiding effect of the wind guide plate, so as to achieve the effect of air outlet from the side air outlet;

[0028] (2) On the other hand, since the wind shield curtain is connected to the wind guide plate, the wind guide plate can drive the wind shield curtain in real time during the process of adjusting the wind guide angle, so that the diameter of the side air outlet also changes in real time. Therefore, at any wind guide angle, effective blocking can be achieved through the wind shield curtain adapted thereto, and the process does not require manual operation and adjustment, nor does it require additional adjustment mechanisms. While ensuring the blocking efficiency, the overall components of the indoor unit are simplified. In addition, the wind shield curtain in the technical solution occupies a smaller area on the middle frame shell, so that the aesthetic appearance of the indoor unit is less affected.

[0029] (3) In addition, when the air guide plate closes the air outlet, the linked wind shield curtain is also attached to the surface of the middle frame shell. Since the wind shield curtain is arranged on the open side of the air guide plate, the matching gap formed between the air guide plate and the middle frame shell is covered by the wind shield curtain, which effectively prevents dust from accumulating in this part to a certain extent, thereby ensuring the cleanliness of the air outlet when the air conditioner is used next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of an indoor unit when the air outlet is closed by the air guide plate provided in an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the indoor unit when the air outlet is opened by the air guide plate.

[0032] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0033] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0034] Figure 5 for Figure 1 A cross-sectional view from another perspective.

[0035] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0036] Figure 7 for Figure 2 A cross-sectional view from another perspective.

[0037] Figure 8 for Figure 7 Enlarged view of point D in the middle.

[0038] Description of reference numerals:

[0039] 100, indoor unit; 101, horizontal; 10, middle frame shell; 12, side air outlet; 13, first arc-shaped slot; 20, wind screen; 21, second arc-shaped slot; 22, first rotating shaft; 23, wind screen portion; 30, wind guide plate; 31, leeward side; 32, second connecting shaft; 33, windward side; 34, open side. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] In order to make the air conditioner better meet the user's use requirements, for example, when the air conditioner is running the cooling function, in order to achieve the effect of avoiding direct blowing of cold wind, the commonly used technical means is to install a windshield or wind curtain on the middle frame shell of the indoor unit. For the indoor unit with a windshield installed, although the effect of avoiding direct blowing of cold wind can be achieved, the size of the windshield is large, and it is exposed to the indoor environment as a whole, which reduces the aesthetic appearance of the indoor unit and reduces the user's use experience. In addition, in order to make the windshield play a stable stopping role for the airflow blown out of the air outlet, it is often necessary to match it with a connecting component, so as to avoid the windshield from deviating from the pre-set windshield position under the combined force of its own gravity and the impact force of the airflow, so as to reduce the windshield effect. As a result, the overall combined structure is larger, the weight of the wall-mounted indoor unit is increased, and the production cost is increased.

[0042] On the other hand, with regard to the common indoor unit equipped with a windshield curtain, the windshield curtain has the advantages of being light in weight and being able to be stored. However, when the existing windshield curtain is kept in an unfolded state on the middle frame shell to stop the cold wind from blowing directly, the linkage between it and other components of the indoor unit is poor. For example, when the wind guide plate rotates at the air outlet to change the air outlet direction, the windshield curtain always maintains the same unfolded state, and it cannot be adjusted in time according to the specific rotation state of the wind guide plate. Specifically, when the wind guide angle of the windshield plate is at two extreme angles, the two extreme angles are the maximum wind guide angle and the minimum wind guide angle, respectively. Specifically, the area formed between the two extreme wind guide angles is the common windshield curtain windshield position setting area. However, the airflow derived from the air outlet has a divergent characteristic, and combined with the large distance between the windshield curtain and the wind guide plate, the air outlet area formed by the airflow divergence is further increased.

[0043] Theoretically, it is sufficient to increase the size of the windshield according to the above analysis. However, due to the characteristics of its flexible structure and to avoid interfering with the air outlet, the windshield is often arranged on the middle frame shell at an angle. A windshield that is too large will inevitably collapse vertically downward or close to the wind guide plate.

[0044] Therefore, it can be seen from the above analysis that both the wind shield and the wind curtain have poor linkage with the wind guide plate.

[0045] See also Figure 1 , which is a schematic diagram of the structure of an indoor unit 100 provided by an embodiment of the present invention. Figure 2-Figure 8 The indoor unit 100 includes, for example, a middle frame housing 10 and a wind screen 20. The middle frame housing 10 is provided with an air outlet, and a wind guide plate 30 is provided at the air outlet; one end of the wind screen 20 is connected to the wind guide plate 30, and the other end is mounted to the opening side 34 of the middle frame housing 10 corresponding to the opening of the air outlet by the wind guide plate 30; wherein, when the wind guide plate 30 opens the air outlet, the wind screen 20 and the wind guide plate 30 form an air duct having a side air outlet 12 arranged along the transverse direction 101, so that the airflow outputted from the air outlet is guided out through the side air outlet 12.

[0046] On the basis of the above analysis, combined with the content of the present technical solution, on the one hand, the wind guiding distance between the wind shield 20 and the wind guide plate 30 is reduced, so that the airflow guided out from the air outlet can be fully blocked by the wind shield 20, thereby improving the blocking effect of the wind shield 20. Specifically, due to the actual size of the air outlet, the size of the wind guide plate 30 adapted thereto is also smaller, and thus the inner cavity size of the air duct surrounded by the wind shield 20, the wind guide plate 30 and the middle frame shell 10 is also smaller. Therefore, the air outlet area formed by the divergence of the airflow introduced from the air outlet into the indoor environment is further reduced. That is, through the air duct of the present technical solution, as much airflow as possible can be received by the wind shield before it leaves the guiding effect of the wind guide plate 30. On the other hand, since the wind shield curtain 20 is connected to the wind guide plate 30, the wind guide plate 30 can drive the wind shield curtain 20 in real time during the adjustment of the wind guide angle, so that the diameter of the side air outlet 12 also changes in real time. Therefore, at any wind guide angle, effective stopping can be achieved through the wind shield curtain 20 that is adapted thereto, and the process does not require manual operation and adjustment, nor does it require additional adjustment mechanisms. While ensuring the stopping efficiency, the overall components of the indoor unit 100 are simplified. In addition, the wind shield curtain 20 in the present technical solution occupies a smaller area on the middle frame shell 10, which has less impact on the aesthetic appearance of the indoor unit 100.

[0047] In addition, when the air guide plate 30 closes the air outlet, the linked wind shield curtain 20 is also attached to the surface of the middle frame shell 10. Since the wind shield curtain 20 is arranged on the open side 34 of the air guide plate 30, the matching gap formed between the air guide plate 30 and the middle frame shell 10 is covered by the wind shield curtain 20, which effectively prevents dust from accumulating in this position to a certain extent, thereby ensuring the cleanliness of the air outlet when the air conditioner is used at the next moment.

[0048] It should be emphasized that although the effect of side wind outlet can also be achieved in the prior art, as mentioned above, since the wind shield curtain 20 and the wind shield are far away from the air outlet, most of the airflow at the side air outlet 12 is the side wind outlet achieved by its own divergence when it breaks away from the wind guiding effect of the wind guide plate 30. This part of the airflow can still be transported to a longer distance in the indoor environment, that is, it has a longer cold wind distance. Therefore, in this case, the wind shielding effect of the existing wind shield and wind shield curtain 20 is greater, and there is still a greater possibility of direct cold wind blowing.

[0049] Preferably, when the wind guide angle of the air outlet opened by the wind guide plate 30 changes, the size of the air outlet of the side air outlet 12 is changed, thereby improving the linkage efficiency of the wind guide plate 30 and the wind shield curtain 20.

[0050] Preferably, when the wind guide angle increases, the cross-sectional area enclosed by the side air outlet 12 increases, thereby further ensuring the linkage efficiency between the wind guide plate 30 and the wind shield curtain 20 .

[0051] Preferably, the windshield curtain 20 is detachably connected to the middle frame shell 10 and / or the wind guide plate 30.

[0052] For example, the windshield 20 is detachably connected to the middle frame shell 10 and the wind guide plate 30, respectively. Combined with the actual operating function of the air conditioner, for example, when the air conditioner operates the cooling function, as discussed above, the windshield 20 is connected to the middle frame shell 10 and the wind guide plate 30 at the same time to prevent the cold wind from blowing directly. When the air conditioner operates the heating function, the windshield 20 is separated from either the middle frame shell 10 or the wind guide plate 30, so that the warm air blown out of the air outlet can be directly introduced into the indoor environment through the wind guide plate 30 without being blocked by the windshield 20, ensuring that the indoor unit 100 and the indoor environment achieve efficient heat exchange in a short time, and avoiding the situation where the warm air is blocked and causes uneven heat exchange in different areas of the indoor environment.

[0053] Furthermore, as a preference, the wind shield curtain 20 can be separated from the wind guide plate 30, and only the wind shield curtain 20 is connected to the middle frame shell 10, so that when the wind guide plate 30 adjusts the wind guide angle, the load of the wind shield curtain 20 on the driving motor that drives the wind guide plate 30 to rotate is effectively reduced.

[0054] Preferably, the windshield curtain 20 is snap-connected with the middle frame shell 10 and / or the wind guide plate 30 .

[0055] Preferably, the wind screen 20 includes a rolling curtain portion and a wind curtain portion 23, for example, the rolling curtain portion is connected to either the wind guide plate 30 or the middle frame shell 10; one end of the wind curtain portion 23 is wound around the rolling curtain portion, and the other end cooperates with the other of the two; wherein an elastic member is provided in the rolling curtain portion, and the elastic member applies a pulling force to the wind curtain portion 23 to increase the winding length wound around the rolling curtain portion.

[0056] For example, by adding a rolling curtain part, the wind curtain part 23 can be retracted and stored in an orderly manner. The pulling force applied to the wind curtain part 23 by the elastic member, combined with the connection between the wind curtain part 23 and the wind guide plate 30, can keep the wind curtain 20 in a straight state at all times, thereby playing a stable blocking effect for blocking the direct blowing of cold wind; in addition, when the wind curtain part 23 is separated from the wind guide plate 30, the wind curtain part 23 is orderly stored in the rolling curtain part under the pulling force of the elastic member, without removing the wind curtain 20 from the middle frame shell 10 as a whole, and when it is necessary to stop the direct blowing of cold wind at the next moment, the corresponding end of the wind curtain part 23 can be connected to the wind guide plate 30. Therefore, in this technical solution, the connection relationship between the wind curtain 20, the middle frame shell 10 and the wind guide plate 30 can be adjusted in time according to the actual needs of the user, and there is no need to disassemble the wind curtain 20 as a whole. The roller curtain portion is provided to store the air curtain portion 23, thereby effectively preventing the air curtain portion 23 from being exposed to the indoor environment for a long time and causing dust accumulation and affecting the appearance of the indoor unit 100.

[0057] Preferably, the rolling curtain portion also includes a first rotating shaft 22, and the middle frame shell 10 is provided with a first arc-shaped groove 13 for accommodating the first rotating shaft 22; a first clamping piece is provided at one end of the wind curtain portion 23 away from the rolling curtain portion, and the air guide plate 30 is provided with a second clamping piece that is clamped with the first clamping piece; wherein, when the air guide plate 30 opens the air outlet, the wind curtain portion 23 is pulled to reduce the winding length.

[0058] Preferably, either the first clamping member or the second clamping member is the second connecting shaft 32, and the other is the second arc groove 21; or, either the second clamping member or the second clamping member is a hook structure, and the other is a snap ring cooperating with the hook structure.

[0059] Preferably, the wind curtain portion 23 is a flexible member, and the second clamping member is disposed on the windward surface and / or leeward surface of the wind deflector 30; and / or, the wind curtain portion 23 is provided with a plurality of air holes. The windward surface is located on the windward side 31, and the leeward surface is located on the leeward side 33.

[0060] Specifically, by adding a plurality of ventilation holes on the wind curtain portion 23, the effect of avoiding direct blowing of cold wind is ensured, and the heat exchange effect with different areas of the indoor environment is guaranteed, which effectively avoids the problem of low heat exchange efficiency of the indoor unit 100 to the area in front of it due to air only being discharged from the side air outlet 12.

[0061] On the other hand, an embodiment of the present invention further provides an air conditioner. Specifically, the air conditioner, for example, includes the indoor unit 100 in any of the above technical solutions, and the middle frame housing 10 is provided with an air inlet at its top; the wind shield 20 can cover or open the air inlet. Correspondingly, this embodiment can achieve the technical effects corresponding to any of the above technical solutions, which will not be repeated here; in addition, by enabling the wind shield 20 to cover the air inlet, the indoor unit 100 can be in standby for a long time, and the wind shield 20 can prevent dust and other insects from entering the air inlet, thereby effectively keeping the interior of the indoor unit 100 clean.

[0062] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An indoor unit, characterized in that: include: A middle frame shell (10), wherein the middle frame shell (10) is provided with an air outlet, and an air guide plate (30) is provided at the air outlet; A windshield curtain (20), one end of the windshield curtain (20) being connected to the wind guide plate (30), and the other end being mounted on an opening side (34) of the middle frame shell (10) corresponding to the wind guide plate (30) opening the air outlet; When the wind guide plate (30) opens the air outlet, the wind shield curtain (20) and the wind guide plate (30) form an air duct having a side air outlet (12) arranged along a transverse direction (101), so that the airflow output from the air outlet is discharged through the side air outlet (12).

2. The indoor unit according to claim 1, characterized in that: When the air guide angle of the air outlet opened by the air guide plate (30) changes, the size of the air outlet of the side air outlet (12) changes.

3. The indoor unit according to claim 2, characterized in that: When the wind guide angle increases, the cross-sectional area enclosed by the side air outlet (12) increases.

4. The indoor unit according to claim 1, characterized in that: The windshield curtain (20) is detachably connected to the middle frame shell (10) and / or the wind guide plate (30).

5. The indoor unit according to claim 4, characterized in that: The wind shield curtain (20) is snap-connected with the middle frame shell (10) and / or the wind guide plate (30).

6. The indoor unit according to any one of claims 1 to 5, characterized in that: The windshield curtain (20) comprises: A rolling curtain portion, the rolling curtain portion being connected to either the wind guide plate (30) or the middle frame housing (10); An air curtain portion (23), one end of the air curtain portion (23) being wound around the rolling curtain portion, and the other end of the air curtain portion being matched with the other of the two; An elastic member is provided in the rolling curtain portion, and the elastic member applies a pulling force to the wind curtain portion (23) to increase the winding length of the wind curtain portion.

7. The indoor unit according to claim 6, characterized in that: The rolling curtain portion further comprises a first rotating shaft (22), and the middle frame shell (10) is provided with a first arc-shaped groove (13) for accommodating the first rotating shaft (22); A first clamping piece is provided at one end of the wind curtain portion (23) away from the rolling curtain portion, and the wind guide plate (30) is provided with a second clamping piece clamped with the first clamping piece; Wherein, when the air guide plate (30) opens the air outlet, the air curtain portion (23) is pulled to reduce the winding length.

8. The indoor unit according to claim 7, characterized in that: Either one of the first clamping member and the second clamping member is a second connecting shaft (32), and the other is a second arc-shaped groove (21); Alternatively, either one of the first clamping member and the second clamping member is a hook structure, and the other is a clamping ring matched with the hook structure.

9. The indoor unit according to claim 7, characterized in that: The wind curtain portion (23) is a flexible member, and the second clamping member is arranged on the windward surface and / or the leeward surface of the wind guide plate (30); And / or, the air curtain portion (23) is provided with a plurality of air holes.

10. An air conditioner, characterized in that: include: The indoor unit according to any one of claims 1 to 9, wherein the middle frame housing (10) is provided with an air inlet at its top end; The wind shield (20) can cover or open the air inlet.

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