CN111853940A

CN111853940A - Indoor unit of air conditioner

Info

Publication number: CN111853940A
Application number: CN202010723043.8A
Authority: CN
Inventors: 孙合庆
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2020-10-30

Abstract

The invention provides an air conditioner indoor unit, and belongs to the technical field of air conditioners. The air-conditioning indoor unit comprises a machine shell, an air outlet and a fan, wherein the air outlet is formed in the machine shell; the support frame is connected to the inside of the shell corresponding to the air outlet; the folding curtain is connected on the support frame, is equipped with a plurality of micropores on it, the folding curtain can be relative the support frame coincide or expand, and the folding curtain of coincide state exposes the air outlet, the folding curtain cover of expansion state the air outlet to and drive arrangement locate on the support frame and with the folding curtain is connected, with the drive folding curtain expandes or coincide. This machine in air conditioning can the flexible air-out, and the problem of blowing people when avoiding air conditioner refrigeration has the advantage that user experience is good.

Description

Indoor unit of air conditioner

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner indoor unit.

Background

The air outlet of present air conditioner generally locates the positive front side of air conditioner fuselage, and wind directly blows out from the air outlet, no matter the user stands or the position of sitting, all is difficult to avoid being blown by wind, influences user's use and experiences, and the aviation baffle of air outlet also only changes the air-out direction of air conditioner, can't solve the problem that the wind blows the people.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the air conditioner indoor unit with soft air outlet is provided, the problem that people are blown by air during air conditioner refrigeration can be avoided, and the air conditioner indoor unit has the advantage of good user experience.

According to this disclosed embodiment's air conditioning indoor set, includes: a case having an air outlet formed thereon; the support frame is connected to the inside of the shell corresponding to the air outlet; the folding curtain is connected on the support frame, is equipped with a plurality of micropores on it, the folding curtain can be relative the support frame coincide or expand, and the folding curtain of coincide state exposes the air outlet, the folding curtain cover of expansion state the air outlet to and drive arrangement locate on the support frame and with the folding curtain is connected, with the drive folding curtain expandes or coincide.

According to the air conditioner indoor unit disclosed by the embodiment of the disclosure, the folding curtain is arranged on the inner side of the air outlet, the folding curtain can be overlapped or unfolded, the folding curtain is overlapped and air is regularly discharged from the air outlet when being aligned, and when the folding curtain is unfolded, air is firstly scattered through micropores on the folding curtain and then is discharged from the air outlet, so that the soft air discharging function of the air conditioner is realized, and the problem that air blows people during refrigeration is avoided; meanwhile, the indoor unit of the air conditioner has the advantages that the change of the air conditioner structure is small due to the fact that the folding curtain is used for achieving the arrangement of soft wind, the structure is simple, the manufacturing is convenient, and the application range is wide; in addition, the folding curtain of the indoor unit of the air conditioner is arranged on the inner side of the air outlet, so that the problem of discomfort in dense appearance caused by arrangement of micropores on an outer door plate of the air conditioner in the prior art is solved.

According to some embodiments of the disclosure, the driving device comprises: the bracket is connected to the supporting frame in a sliding manner; the motor is connected with the bracket and is used for providing driving force for the sliding of the bracket; one end of the folding curtain is fixedly connected to the support frame, the other end of the folding curtain is connected with the support frame, and the folding curtain is folded or unfolded along with the support frame.

According to some embodiments of the disclosure, the support is slidably connected to the support frame by a transmission mechanism, the transmission mechanism comprising: the rack is arranged on the support frame, and the extending direction of the rack is the same as the unfolding direction of the folding curtain; the gear is connected to the output end of the motor and meshed with the rack to move so as to drive the support to slide.

According to some embodiments of the present disclosure, a guide groove is provided on the support frame, a guide rail is provided on the support frame, and the guide rail is adapted to the guide groove to slide.

According to some embodiments of the present disclosure, a support rod is connected to the movable end of the pleated cover, and the support rod is connected to the bracket.

According to some embodiments of the disclosure, further comprising: the position detection sensor is fixedly connected to the support frame; and the detection object is arranged on the support, slides along with the support, and is positioned in the detection range of the position detection sensor when the folding curtain is in the folding state or the unfolding state.

According to some embodiments of the present disclosure, the position detection sensors have two sets, and the object to be detected is within a detection range of one of the position detection sensors when the folding curtains are in the folded state; the detection object is within the detection range of the other set of position detection sensors when the folding curtain is in the unfolded state.

According to some embodiments of the present disclosure, at least one expansion member extending in the same direction as the unfolding direction of the foldable curtain is connected to the support frame, and the expansion member is inserted into the foldable curtain for supporting the foldable curtain.

According to some embodiments of the disclosure, the microwells are in the form of one gauge or a plurality of different gauges.

According to some embodiments of the present disclosure, the driving device has two pairs, respectively located at opposite sides of the pleated cover.

According to some embodiments of the present disclosure, N sets of the driving devices are uniformly distributed along the unfolding direction of the folding curtain, the folding curtain between two adjacent sets of the driving devices can cover the air outlet when being unfolded, and the sizes of the micropores on the folding curtain between two adjacent sets of the driving devices are different.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of an outlet port of an indoor unit of an air conditioner according to an embodiment of the present disclosure in a closed state;

fig. 2 is a perspective view of an outlet port of an indoor unit of an air conditioner according to an embodiment of the present disclosure in an open state;

fig. 3 is a perspective view of an indoor unit of an air conditioner in a soft wind outlet state according to an embodiment of the present disclosure;

fig. 4 is an exploded view of an indoor unit of an air conditioner in a soft wind outlet state according to an embodiment of the present disclosure;

fig. 5 is a perspective view of an air outlet device of an indoor unit of an air conditioner according to an embodiment of the present disclosure in an unfolded state;

fig. 6 is a perspective view of an indoor unit of an air conditioner in a normal air outlet state according to the embodiment of the present disclosure;

fig. 7 is an exploded view of an indoor unit of an air conditioner in a normal air outlet state according to an embodiment of the present disclosure;

fig. 8 is a perspective view of an air outlet device of an indoor unit of an air conditioner according to an embodiment of the present disclosure in an overlapped state;

fig. 9 is a perspective view of a support frame of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 10 is a perspective view of a bracket of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 11 is an expanded view of a pleated cover of an air conditioning indoor unit according to another embodiment of the present disclosure;

fig. 12 is a schematic view of an air outlet device of an indoor unit of an air conditioner according to another embodiment of the present disclosure in a folded state;

fig. 13 is a schematic view of an indoor unit of an air conditioner in a first soft wind outlet state according to another embodiment of the present disclosure;

fig. 14 is a schematic view of an indoor unit of an air conditioner in a second-speed soft wind outlet state according to another embodiment of the present disclosure;

in the above figures: 10. a housing; 11. an air inlet; 12. an air outlet; 20. a heat exchanger; 21. a fan; 22. a water pan; 30. an air outlet device; 31. a folding curtain; 311. micropores; 32. a motor; 321. a gear; 33. a support; 331. a guide rail; 34. a support frame; 341. a drain hole; 342. a rack; 343. a guide groove; 344. connecting columns; 345. mounting a column; 351. a position detection sensor; 352. a detection object; 36. a support bar; 37. expanding the fastening piece; 40. a water guide plate; 50. a door panel; 60. wind guide blades; 71. a first air outlet area; 72. and a second air outlet area.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of the air conditioner.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner is used as a heater in a heating mode when the indoor heat exchanger is used as a condenser, and as a cooler in a cooling mode when the indoor heat exchanger is used as an evaporator.

The present disclosure provides an embodiment of an indoor unit of an air conditioner, which may be any one of a wall-mounted type and a cabinet type. In the following description, the cabinet is mainly taken as an example, and other types can be referred to.

Referring to fig. 1 to 8, the indoor unit of an air conditioner includes a cabinet 10 having an air inlet 11 and an air outlet 12, a heat exchanger 20 performing heat exchange with air introduced into the cabinet 10, a blower 21 circulating air to the inside or outside of the cabinet 10, and an air outlet device 30 discharging the air in the form of a plurality of minute holes 311.

The cabinet 10 may form an overall appearance of the air conditioning indoor unit, and may include a front panel forming the air outlet 12, a rear panel disposed behind the front panel, a pair of side panels having the air inlet 11 formed therein and disposed between the front panel and the rear panel, and a lower panel disposed below the pair of side panels. The air inlet 11 and the air outlet 12 are respectively provided in the side panel and the front panel. However, the embodiments of the present disclosure are not limited thereto.

The heat exchanger 20 is disposed inside the cabinet 10, and may be disposed on an air moving path from the intake opening 11 to the exhaust opening 12. The heat exchanger 20 serves to absorb heat from or transfer heat to air introduced into the intake vent 11. A drip tray 22 may be provided below the heat exchanger 20 to collect condensate that flows down the heat exchanger 20. The drain pan 22 may be connected to a drain pipe (not shown) connected to the outside of the cabinet 10, and may discharge the condensed water to the outside of the cabinet 10.

The blower 21 is disposed inside the cabinet 10. The blower 21 is used to blow air so that the air can flow from the air inlet 11 to the air outlet 12. The fan 21 may be an axial flow fan, a cross flow fan, or the like.

The indoor unit of the air conditioner may include a door panel 50 movably coupled to the cabinet 10, the door panel 50 opening/closing the outlet 12 and being movable between a closed position in which the door panel 50 closes the outlet 12 (fig. 1) and an open position in which the door panel 50 opens the outlet 12 (fig. 2).

The air conditioning indoor unit may include a guide vane 60, the guide vane 60 being disposed at the outlet port 12, the guide vane 60 also controlling a direction in which air blown from the fan 21 is discharged to the outside.

Referring to fig. 3 to 5, the air outlet device 30 is disposed inside the casing 10 corresponding to the air outlet 12, and the air introduced from the air inlet 11 flows through the air outlet device 30 and then is discharged from the air outlet 12. The outlet device 30 includes a folding curtain 31, the folding curtain 31 can be unfolded or folded, the folding curtain 31 can cover the inner side of the outlet 12 when the folding curtain 31 is unfolded, a soft air outlet region formed by a plurality of micro-holes 311 is formed on the folding curtain 31, as shown in fig. 5, the plurality of micro-holes 311 can be distributed in the folding curtain 31 to be separated from each other by a predetermined distance, air is discharged from the plurality of micro-holes 311 when passing through the soft air outlet region, and the micro-holes 311 break the air flow, so that the air can be discharged to the outside of the indoor unit of the air conditioner at a low speed. From this, realize gentle wind effect, the user can not with wind direct contact, improved user's comfort level.

Moreover, in the related art, the soft wind is realized by arranging the micropores 311 on the wind guide blade 60 and the door panel 50, that is, when the door panel 50 is at the closed position, the air blown from the fan 21 is scattered through the micropores 311 on the door panel 50 and discharged to the outside, and such a way has the problems that the air conditioner structure is changed to be large, the manufacturing difficulty is large, and the user feels uncomfortable due to the fact that the micropores 311 are exposed outside; the air conditioner indoor unit only needs to arrange the air outlet device 30 at the inner side of the air outlet 12, has simpler structure, and can be directly used on a new machine type and additionally arranged on an old machine type; the air outlet device 30 is not exposed outside the indoor unit of the air conditioner, so that discomfort of dense appearance is avoided.

In addition, the air outlet device 30 of the air conditioning indoor unit is arranged at the inner side of the air outlet 12, and the structure of the air outlet 12 is not changed, so that the air guide blades 60 at the air outlet 12 can still guide the air supply direction, and more use requirements of users can be met.

Referring to fig. 6 to 8, when the foldable curtains 31 are folded, the air outlet 12 is exposed, and air can flow to the air outlet 12 without being obstructed, so that a normal air outlet function of the air conditioner is realized.

Specifically, the foldable curtain 31 can move between a folded state and an unfolded state, and the foldable curtain 31 does not shield the air outlet 12 when in the folded state; the folding curtain 31 is in the unfolded state, and can discharge air in a soft wind manner to cover the rear side of the air outlet 12. According to the air conditioner indoor unit disclosed by the embodiment of the disclosure, normal air outlet or soft air outlet can be realized only by controlling the state of the folding curtain 31.

Referring to fig. 5 and 8, the air outlet device 30 may include a supporting frame 34, the supporting frame 34 is connected in the casing 10 corresponding to the air outlet 12, the supporting frame 33 is substantially shaped like a Chinese character 'kou', the foldable curtain 31 has a fixed end and a movable end, the fixed end is connected to the supporting frame 34, the movable end moves to a side far away from the fixed end to unfold the foldable curtain 31, and the movable end moves to a side near the fixed end to fold the foldable curtain 31.

The air-conditioning indoor unit enables the air outlet device 30 to be an integral component through the arrangement of the supporting frame 34, realizes the modularized structural design, and can facilitate the installation and the arrangement of the air outlet device 30 on the air-conditioning indoor unit.

It should be noted that in the present embodiment, the foldable curtain 31 performs a vertical movement, however, it will be understood by those skilled in the art that the foldable curtain 31 may also move laterally, and the moving direction of the foldable curtain is not limited by the present invention.

The air outlet device 30 includes a driving device capable of driving the folding curtain 31 to unfold or fold, and specifically includes a motor 32 for providing a driving force, a bracket 33 connected to the motor 32, the bracket 33 can slide up and down relative to the supporting frame 34, and the bracket 33 is connected to the movable end of the folding curtain 31, so that the bracket 33 drives the folding curtain 31 to unfold when sliding down and the bracket 33 drives the folding curtain 31 to fold when sliding up.

In some embodiments of the present disclosure, the support 33 slides through a transmission mechanism, the transmission mechanism is a rack and pinion mechanism, the rack 342 is disposed on the support 34, and may be integrally formed with the support 34 or connected to the support and the support, the rack 342 extends vertically in the same direction as the folding curtain 31, the gear 321 is connected to the output end of the motor 32, when the motor 32 drives the gear 321 to rotate, the gear 321 and the rack 342 are meshed to linearly move downward, so as to drive the support 33 and the moving end of the folding curtain 31 to move downward, and further to expand the folding curtain 31; the motor 32 rotates reversely, the gear 321 engages with the rack 342 to move linearly upward, and the bracket 33 and the movable end of the folding curtain 31 are driven to move upward, so that the folding curtain 31 is folded.

According to the embodiment of the present disclosure, the folding curtain 31 is unfolded or folded by the movement of the gear 321 relative to the rack 321, and the structure is simple and reliable; in this embodiment, the movement of the gear 321 is adopted to reduce the space problem caused by the movement stroke, because if the rack 342 is adopted to move, the rack 342 is longer, and a larger avoidance space needs to be provided for the rack on the air conditioner, so that the structure of the air conditioner indoor unit adopting the movement of the gear 321 is more compact and simpler.

In some embodiments of the present disclosure, the indoor unit of an air conditioner includes a set of two driving devices, one of which is connected to the left side of the folding curtain 31 and the other of which is connected to the right side of the folding curtain 31, and the two motors 32 rotate synchronously, so that the smooth and synchronous unfolding of the folding curtain 31 can be ensured.

In some embodiments of the present disclosure, the bracket 33 is slidably connected to the supporting frame 34 through a guide rail and a guide groove, so as to satisfy the requirement of smooth sliding; specifically, referring to fig. 9 and 10, the support frame 34 is provided with a guide groove 343, the bracket 33 is provided with a guide rail 331, and the guide rail 331 is fitted in the guide groove 343, so that the sliding position of the bracket 33 relative to the support frame 34 can be ensured, and the bracket 33 is prevented from being loosened from the support frame 34.

In some embodiments of the present disclosure, the air outlet device 30 may include a supporting rod 36, the supporting rod 36 is connected to the moving end of the foldable curtain 31, two ends of the supporting rod 36 are respectively connected to the brackets 33, the supporting rod 36 is arranged to form a rigid connection between the foldable curtain 31 and the brackets 33, the supporting rod 36 may move along with the two brackets 33, and then the foldable curtain 31 is driven to perform a folding and unfolding motion, so as to avoid the foldable curtain 31 from deforming due to local stress.

In the present embodiment, the sizes and specifications of the micro holes 311 on the folding curtain 31 are the same, however, the present embodiment is not limited thereto, and in some embodiments, the micro holes 311 may also be in the form of different sizes and specifications, and the micro holes 311 with different specifications may bring about a soft wind effect to different degrees, so as to meet different requirements of users.

In some embodiments, referring to fig. 11, when the folding curtain 31 is completely unfolded, along the moving direction of the folding curtain 31, there are a first air outlet area 71 formed by the smaller micro-holes 311 and a second air outlet area 72 formed by the larger micro-holes 311, and driving devices are disposed at the bottom and the middle of the folding curtain 31 (between the first air outlet area 71 and the second air outlet area 72).

Referring to fig. 12, the folding curtains 31 are in an overlapped state, the driving devices are all located at the upper ends of the supporting frames 34, the lower space of the folding curtains 31 is opposite to the air outlet 12, and air can pass through the air outlet device 30 to the air outlet 12 without hindrance; referring to fig. 13, the driving device at the bottom moves downward, the driving device at the middle remains still, so that the second air outlet area 72 at the lower half part of the folding curtain 31 can be unfolded and cover at the air outlet 12, and the air passes through the micro-holes 311 of the second air outlet area 72 to reach the air outlet 12; referring to fig. 14, the bottom driving device is kept still, and the middle driving device moves downward, so that the first outlet area 71 of the upper half of the pleated cover 31 is unfolded and covers the outlet 12 while the second outlet area 72 is folded, and the air passes through the micro holes 311 of the first outlet area 71 to the outlet 12.

Because the specifications of the micropores 311 in the first air-out area 71 and the second air-out area 72 are different, the air-out effect with different degrees can be achieved, the multifunctional requirements of users can be met, in addition, the volume of the air-out device 30 is not excessively increased in the embodiment, and the structure of the air-out device 30 is compact.

The above description is given by way of example of the pleated cover 31 having two different air-out sections, however, it will be understood by those skilled in the art that the structure can be extended to a pleated cover 31 having N air-out sections. Therefore, N soft wind outlet effects with different degrees can be set for the indoor unit of the air conditioner, and the soft wind degrees can be arranged from large to small or from small to large.

Specifically, the folding curtain 31 includes a first air outlet area, a second air outlet area, and an … … nth air outlet area, in which the sizes of the micropores are sequentially increased, and the first air outlet area, the second air outlet area, and the … … nth air outlet area respectively correspond to an N-level soft wind effect, an N-1 level soft wind effect, and a … … first level soft wind effect; the upper end of the first air-out area is fixedly connected with the supporting frame 34, and is respectively arranged between two adjacent air-out areas, and the bottom end of the Nth air-out area is connected with the driving device.

When the air conditioner is in a standby state or a shutdown state, the folding curtains 31 are in a superposed state, the driving devices are sequentially distributed at the upper end of the support frame 34, and the indoor unit of the air conditioner normally blows air; when a user selects a first gear soft wind outlet, the driving device at the bottom end of the Nth air outlet area slides downwards, the front N-1 groups of driving devices are kept still, and the Nth air outlet area of the folding curtain 31 is unfolded, so that a first gear soft wind effect of the air conditioner is realized; when a user selects N-gear soft wind to wind, the N-1 groups of driving devices at the lower end slide downwards, the first wind outlet area is unfolded, and the N-gear soft wind effect of the air conditioner is achieved.

According to this air conditioning indoor set of embodiment of this disclosure has the gentle wind air-out of many grades not degree, realizes different air conditioning function to satisfy user's different user needs, improve user's travelling comfort.

In some embodiments, the soft wind outlet area of the folding curtain 31 may be formed by micropores 311 with different sizes, so as to achieve the wind outlet effect of mixed wind.

In some embodiments of the present disclosure, since the foldable curtain 31 needs to be folded and unfolded, the material of the foldable curtain 31 is generally soft, and air passing through the foldable curtain 31 will act on the foldable curtain 31, so as to avoid the foldable curtain 31 being blown by air to deform, referring to fig. 5 and 8, the indoor unit of the air conditioner may include at least one expansion member 37, where the expansion member 37 penetrates through the foldable curtain 31 along the unfolding direction of the foldable curtain 31 to support the foldable curtain 31, so as to increase the connection strength of the foldable curtain 31 and reduce the deformation of the foldable curtain 31 due to wind blowing.

Referring to fig. 9, the upper and lower opposite ends of the supporting frame 34 are provided with connecting posts 344, the two ends of the expanding member 37 are respectively inserted into the connecting posts 344, and the connecting posts 344 and the supporting frame 34 are integrally formed.

The expansion piece 37 is in a slender strip shape, and does not occupy the air outlet space of the air outlet device 30 while supporting the folding curtain 31.

In some embodiments of the present disclosure, referring to fig. 5, 8-10, the indoor unit of the air conditioner may include a position detecting device for detecting a position of the pleated cover 31, specifically including a position detecting sensor 351 and a detecting object 352, the position detecting sensor 351 is connected to the supporting frame 34, the detecting object 352 is connected to the bracket 33, the detecting object 352 moves along with the bracket 33, the detecting object 352 is within a detecting range of the position detecting sensor 351 when the pleated cover 31 is in the folded state or the unfolded state, and the position detecting sensor 351 transmits a signal to a controller of the air conditioner, and the controller controls the motor 32, so that the pleated cover 31 may be maintained in the folded state or the unfolded state. That is, the motor 32 drives the bracket 33 to move, and when the position detection sensor 351 detects the signal of the detection object 352, the controller controls the motor 32 to stop rotating, and the folding curtain 31 is maintained at the current position.

Therefore, the relative position arrangement of the detection object 352 and the position detection sensor 351 is: when the pleated cover 31 is in the folded state or the unfolded state, the detection object 352 is within the detection range of the position detection sensor 351.

In order to distinguish whether the folding curtain 31 is in the folded state or the unfolded state, two sets of the position detection sensors 351 are arranged corresponding to two positions of the bracket 33, namely a first sensor and a second sensor, respectively, and the detection object 352 is located in the detection range of the first sensor when the folding curtain 31 is in the folded state, namely, the position detection sensor 351 located at the upper part in fig. 8 is the first sensor, and the detection object 35 on the bracket 33 is located at the position of the first sensor; the detection object 352 is within the detection range of the second sensor when the folding curtain 31 is in the unfolded state, that is, the position detection sensor 351 located at the lower side in fig. 5 is the second sensor, and the detection object 352 on the bracket 33 moves to the second sensor position.

The working process of the position detection device comprises the following steps: when the air conditioner needs to work in a soft wind outlet mode, the motor 32 drives the bracket 33 to move downwards, the folding curtain 31 is unfolded, and when the second sensor detects the detection object 352, the motor 32 is stopped, and the folding curtain 31 is kept in an unfolded state; when the air conditioner needs to work in the normal air outlet mode, the motor 32 drives the bracket 33 to move upwards, the folding curtain 31 is folded, and when the first sensor detects the detection object 352, the motor 32 is stopped, and the folding curtain 31 is kept in the folded state.

Specifically, the position detection sensor 351 may be a photoelectric switch, and the detection object 352 may be a grating tooth; of course, the position detection sensor 351 and the detection object 352 may be in other forms, such as a proximity switch and a metal object.

With continued reference to fig. 9, four mounting posts 345 are provided at upper and lower portions of left and right ends of the supporting bracket 34, and a position detecting sensor 351 is mounted on the mounting posts 345, and the position of the driving means is controlled by the position detecting sensor 351, so that the orderly folding or unfolding of the pleated cover 31 can be ensured.

In some embodiments of the present disclosure, condensation may be generated on the folding curtain 31 when the air passing through the heat exchanger 20 is scattered and discharged by the folding curtain 31, and therefore, the material of the folding curtain 31 has good water resistance, water resistance and hydrophobicity, so that the condensation water does not damage the folding curtain 31 and can flow down quickly. Referring to fig. 9, in order to prevent the condensed water on the folding curtain 31 from dripping and affecting other devices of the air conditioner, a water receiving tank is arranged on a cross beam at the lower part of the support frame 34, and the water receiving tank is positioned right below the folding curtain 31, and the condensed water flows into the water receiving tank along the folding curtain 31. The support frame 34 may be provided with a drain hole 341 communicating with the water receiving tank, and the condensed water may be drained through the drain hole 341.

Referring to fig. 4, a water guide plate 40 is disposed between the support frame 34 and the drain pan 22, and condensed water in the drain pan can flow into the drain pan 22 through the water guide plate 40 via the water discharge hole 341 and be discharged.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An indoor unit of an air conditioner, comprising:

a case having an air outlet formed thereon;

the support frame is connected to the inside of the shell corresponding to the air outlet;

the folding curtain is connected on the support frame and provided with a plurality of micropores, the folding curtain can be opposite to the support frame which is overlapped or unfolded, the folding curtain in the overlapped state is exposed out of the air outlet, the folding curtain in the unfolded state covers the air outlet, and

and the driving device is arranged on the supporting frame and connected with the folding curtain so as to drive the folding curtain to unfold or fold.

2. An indoor unit of an air conditioner according to claim 1, wherein the driving means includes:

the bracket is connected to the supporting frame in a sliding manner; and

the motor is connected with the bracket and is used for providing driving force for the sliding of the bracket;

one end of the folding curtain is fixedly connected to the support frame, the other end of the folding curtain is connected with the support frame, and the folding curtain is folded or unfolded along with the support frame.

3. An indoor unit of an air conditioner according to claim 2, wherein the bracket is slidably connected to the support frame through a transmission mechanism, and the transmission mechanism includes:

the rack is arranged on the support frame, and the extending direction of the rack is the same as the unfolding direction of the folding curtain;

the gear is connected to the output end of the motor and meshed with the rack to move so as to drive the support to slide.

4. An indoor unit of an air conditioner according to claim 2, wherein the support frame is provided with a guide groove, and the support frame is provided with a guide rail, the guide rail being adapted to slide in the guide groove.

5. An indoor unit of an air conditioner according to claim 2, wherein a support rod is connected to a moving end of the folding curtain, and the support rod is connected to the bracket.

6. An indoor unit of an air conditioner according to claim 2, further comprising:

the position detection sensor is fixedly connected to the support frame; and

the detection object is arranged on the support, slides along with the support, and is located in the detection range of the position detection sensor when the folding curtain is in the folding state or the unfolding state.

7. The indoor unit of claim 6, wherein the position detecting sensors have two sets, and the object to be detected is within a detection range of one of the position detecting sensors when the foldable curtains are folded; the detection object is within the detection range of the other set of position detection sensors when the folding curtain is in the unfolded state.

8. An indoor unit of an air conditioner according to claim 1, wherein at least one expansion member extending in the same direction as the direction in which the foldable curtain is unfolded is attached to the support frame, and the expansion member is inserted through the foldable curtain to support the foldable curtain.

9. An indoor unit of an air conditioner according to claim 1, wherein the micro-holes are formed in one size or a plurality of different sizes.

10. An indoor unit of an air conditioner according to claim 1, wherein the driving unit has two pairs, one on each of opposite sides of the pleated cover.

11. An indoor unit of an air conditioner according to claim 1, wherein N sets of the driving devices are uniformly distributed along the direction of expansion of the pleated sheet, the pleated sheet between two adjacent sets of the driving devices covers the air outlet when expanded, and the sizes of the micro-holes on the pleated sheet between two adjacent sets of the driving devices are different.