CN218442542U - Indoor unit and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses an indoor unit, including: a housing; the purifying assembly is arranged in the machine shell and divides the interior of the machine shell into a first chamber and a second chamber, and the first chamber is communicated with the second chamber through the purifying assembly; the first compartment is provided with an air inlet, the second compartment is provided with an air outlet, and the air inlet and the air outlet are both communicated with an indoor environment; the heat exchange assembly is arranged in the second chamber; the inner circulation air door assembly is arranged in the first chamber and comprises an inner circulation door plate and a hydraulic driving part; the inner circulation door plate corresponds to the air inlet, and the hydraulic driving part is connected to the inner circulation door plate and used for driving the inner circulation door plate to turn over, so that the air inlet amount of the air inlet is adjusted. The application also discloses an air conditioner.

Description

Indoor unit and air conditioner

Technical Field

The application relates to the technical field of air conditioners, for example to an indoor unit and an air conditioner.

Background

The air duct type air conditioner is commonly called as an air duct type air conditioner, and the air duct type air conditioner adopts a one-to-one mode and comprises an outdoor unit and an indoor unit. When the indoor unit, the refrigerant pipeline, the drainage pipeline and the line pipeline are all hidden in the suspended ceiling. Therefore, compared with a wall-mounted air conditioner and a cabinet air conditioner, the air duct machine is more attractive and space-saving, and the installation position is more flexible.

In the related art, an indoor unit of an air duct machine is disclosed, which includes a casing and a heat exchanger. The casing is provided with an air inlet and an air outlet, and the heat exchanger is arranged in the casing. Indoor air enters the shell from the air inlet and then exchanges heat with the heat exchanger, and finally is blown back to the indoor from the air outlet, so that refrigeration or heating is realized.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the indoor unit of the air duct machine has single function and only can play a role in refrigeration or heating. In the case where the quality of indoor air is poor, the effect of purifying air cannot be achieved. And the air intake of the indoor unit can not be adjusted, so that the use requirement of adjusting the air intake by a user is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an indoor unit and an air conditioner, and solves the problems that the indoor unit has a single function and cannot purify air, and the air inlet quantity of an air inlet cannot be adjusted.

In some embodiments, the indoor unit includes:

a housing;

the purifying assembly is arranged in the machine shell and divides the interior of the machine shell into a first chamber and a second chamber, and the first chamber is communicated with the second chamber through the purifying assembly; the first chamber is provided with an air inlet, the second chamber is provided with an air outlet, and the air inlet and the air outlet are both communicated with an indoor environment;

the heat exchange assembly is arranged in the second chamber;

the inner circulation air door assembly is arranged in the first chamber and comprises an inner circulation door plate and a hydraulic driving part; the inner circulation door plate corresponds to the air inlet, and the hydraulic driving part is connected to the inner circulation door plate and used for driving the inner circulation door plate to turn over, so that the air inlet amount of the air inlet is adjusted.

Optionally, the first side edge of the inner circulation door panel is hinged to the air inlet through an inner circulation rotating shaft; the hydraulic drive section includes:

and the telescopic end of the hydraulic rod is connected to the inner circulation door plate, the telescopic direction of the hydraulic rod is matched with the overturning direction of the inner circulation door plate, and the telescopic end drives the inner circulation door plate to overturn through the inner circulation rotating shaft when being telescopic.

Optionally, a second side edge of the inner circulation door panel adjacent to the first side edge is provided with a first connection hole, a first connection ring is arranged in the first connection hole, a second connection ring is arranged at the telescopic end of the hydraulic rod, and the second connection ring is buckled with the first connection ring.

Optionally, a middle portion of the second side edge of the inner circulation door panel extends outwards to form an ear plate, and the first connection hole is formed in the ear plate.

Optionally, a mounting frame is arranged on the periphery of the air inlet, and the fixed end of the hydraulic rod is connected to the mounting frame.

Optionally, the inner circulation air door assembly further comprises:

an auxiliary slat comprising a first plate segment and a second plate segment; the first end of the first plate section is connected to a third side edge, opposite to the second side edge, of the inner circulation door plate, the second end of the first plate section is hinged to the first end of the second plate section, and the second end of the second plate section is hinged to the air inlet.

Optionally, a third side edge of the inner circulation door panel is provided with a second connecting hole, and a third connecting ring is arranged in the second connecting hole;

the first end of the first plate section is provided with a fourth connecting ring, and the fourth connecting ring is buckled with the third connecting ring.

Optionally, the middle part of the third side of the inner circulation door panel extends outwards to form an ear plate, and the second connecting hole is formed in the ear plate.

Optionally, a mounting frame is disposed on a periphery of the air inlet, and the second end of the second plate section is hinged to the mounting frame.

In some embodiments, the air conditioner includes the indoor unit described in any of the above embodiments.

The indoor unit and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

the indoor unit can play a role in refrigeration/heating and a purification role. Indoor air enters the first chamber from the air inlet, and then enters the second chamber after being purified by the purification assembly. The purified air exchanges heat with the heat exchange assembly in the second chamber, and the air after heat exchange is blown back to the indoor space from the air outlet, so that refrigeration/heating is realized. Therefore, the indoor unit can purify indoor air and improve the quality of the indoor air while refrigerating/heating.

And the turning angle of the internal circulation door plate is adjusted through the hydraulic driving part, so that the adjustment of the air inlet amount of the air inlet is realized.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

fig. 1 is a schematic structural diagram of an indoor unit provided in an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of an indoor unit according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a purification assembly provided by an embodiment of the disclosure;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic structural view of an internal circulation air door assembly provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of an internal circulation damper assembly provided by embodiments of the present disclosure;

FIG. 7 is a schematic structural view of an internal circulation damper assembly provided by embodiments of the present disclosure;

FIG. 8 is a schematic structural view of an external circulation air door assembly provided by an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of an outer circulation damper assembly provided in accordance with an embodiment of the present disclosure;

fig. 10 is an enlarged view of a portion B of fig. 9.

Reference numerals:

100: a housing; 101: a front side plate; 110: a first compartment; 111: an air inlet; 112: an air inlet grille; 113: installing a frame; 114: a fresh air port; 120: a second compartment; 121: an air outlet; 122: an air outlet grille; 130: a centrifugal fan; 131: a fan bracket;

200: a purification plate; 210: a U-shaped mounting plate; 220: a U-shaped support plate; 230: maintaining the plate;

300: an internal circulation door panel; 301: an internal circulation rotating shaft; 310: a hydraulic lever; 320: an auxiliary slat; 321: a first plate section; 322: a second plate section;

400: a fresh air door panel; 401: a fresh air rotating shaft; 410: a fresh air bracket; 420: a fresh air motor; 430: a pipe joint.

Detailed Description

So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the devices, elements or components indicated to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or position, for example, the term "on" may also be used to indicate some kind of attachment or connection in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 10, an indoor unit according to an embodiment of the present disclosure includes a casing 100, a purification assembly, a heat exchange assembly, and an internal circulation air door assembly. Wherein, the purification component is disposed in the casing 100 and divides the interior of the casing 100 into a first compartment 110 and a second compartment 120, and the first compartment 110 and the second compartment 120 are communicated through the purification component; wherein, the first compartment 110 is provided with an air inlet 111, and the second compartment 120 is provided with an air outlet 121; the heat exchange assembly is disposed in the second compartment 120; the internal circulation air door assembly is arranged in the first compartment 110 and comprises an internal circulation door panel 300 and a hydraulic driving part; the inner circulation door panel 300 corresponds to the air inlet 111, and the hydraulic driving part is connected to the inner circulation door panel 300 and is used for driving the inner circulation door panel 300 to turn over, so as to adjust the air inlet amount of the air inlet 111.

With the indoor unit provided by the embodiment of the present disclosure, air enters the first compartment 110 from the air inlet 111, then enters the second compartment 120 after being purified by the purification component, and finally is blown back into the room from the air outlet 121 after exchanging heat with the heat exchange component. Thus, the indoor unit can play a role in refrigerating/heating and a role in purifying. Indoor air enters the first compartment 110 from the air inlet 111, and then enters the second compartment 120 after being purified by the purification assembly. The purified air exchanges heat with the heat exchange assembly in the second compartment 120, and the heat exchanged air is blown back into the room from the air outlet 121, so that refrigeration/heating is realized. Therefore, the indoor unit can purify indoor air and improve the quality of the indoor air while refrigerating/heating. And, the turning angle of the inner circulation door panel 300 is adjusted by the hydraulic driving part, so that the adjustment of the intake air amount of the air inlet 111 is realized.

Optionally, the air inlet 111 of the first compartment 110 and the air outlet 121 of the second compartment 120 are located on the same side plate of the casing 100.

Illustratively, the cabinet 100 is configured as a rectangular parallelepiped structure, including a front side plate 101. When the front side plate 101 of the cabinet 100 is lifted as shown in fig. 1, the air inlet 111 and the air outlet 121 are opened on the front side plate 101, so that the indoor air is blown into and out of the front side plate 101 of the cabinet 100.

Optionally, as shown in fig. 2, an air inlet grille 112 is disposed at the air inlet 111.

Illustratively, the air intake grille 112 includes a grille frame and a plurality of grills, and the plurality of grills are vertically disposed within the grille frame. The intake vent 111 is configured in a rectangular shape, and a grill frame is fixed to an outer peripheral edge of the intake vent 111. Thus, foreign matters are prevented from entering the first compartment 110 from the air inlet 111 by the air inlet grill 112.

Optionally, as shown in fig. 2, an air outlet grille 122 is disposed at the air outlet 121.

Illustratively, the outlet grille 122 includes a grille frame and a plurality of grills, and the plurality of grills are vertically disposed in the grille frame. The outlet port 121 is configured in a rectangular shape, and a grill frame is fixed to an outer circumference of the outlet port 121. In this way, foreign matter can be prevented from being blown back into the room from the outlet port 121 by the outlet grill 122.

Optionally, the heat exchange assembly comprises a centrifugal fan 130 and a heat exchanger. Wherein, the axis of the centrifugal fan 130 is vertically arranged; the heat exchanger corresponds to the air outlet of the centrifugal fan 130 and is located at the air outlet 121 of the casing 100.

In the present embodiment, the axis of the centrifugal fan 130 is arranged vertically, that is, the centrifugal fan 130 is arranged on the bottom plate of the casing 100 in a lying manner. The air outlet of the centrifugal fan 130 blows air to the heat exchanger, and the air is blown back to the room from the air outlet 121 after exchanging heat with the heat exchanger.

Illustratively, as shown in fig. 2, a fan bracket 131 is provided on the top of the second compartment 120. The centrifugal fan 130 includes a volute and a motor, the middle of the fan bracket 131 is used for fixing the motor, and both sides of the fan bracket 131 are used for fixing the volute. Thereby lifting the centrifugal fan 130 through the fan bracket 131.

As another example, a fan bracket 131 (not shown) is disposed at the bottom of the second compartment 120. The centrifugal fan 130 includes a volute and a motor, the middle of the fan bracket 131 is used for fixing the motor, and both sides of the fan bracket 131 are used for fixing the volute. Thereby holding the centrifugal fan 130 by the fan holder 131.

Optionally, the first side of the inner circulating door panel 300 is hinged to the air inlet 111 through the inner circulating rotating shaft 301; the hydraulic driving part comprises a hydraulic rod 310, the telescopic end of the hydraulic rod 310 is connected to the inner circulation door panel 300, the telescopic direction of the hydraulic rod 310 is matched with the overturning direction of the inner circulation door panel 300, and the telescopic end of the hydraulic rod drives the inner circulation door panel 300 to overturn through the inner circulation rotating shaft 301 when being telescopic.

Illustratively, as shown in fig. 5 and 7, the first side of the inner circulation door panel 300 is an upper side and is provided with an inner circulation rotating shaft 301, the outer periphery of the air inlet 111 is provided with a mounting frame 113, and the inner circulation rotating shaft 301 is hinged to the upper portion of the mounting frame 113. The hydraulic rod 310 is disposed under the inner circulating door panel 300, and its fixed end is connected to the lower portion of the mounting frame 113. When the telescopic end of the hydraulic rod 310 extends outwards, the inner circulation door panel 300 is jacked up, so that the inner circulation door panel 300 is turned over in the direction away from the air inlet 111, and the air inlet 111 is avoided, and the air inlet amount is increased. When the telescopic end of the hydraulic rod 310 retracts, the internal circulation door panel 300 is pulled, so that the internal circulation door panel 300 is turned over towards the direction close to the air inlet 111, and the air inlet 111 is gradually closed to reduce the air inlet amount.

Optionally, a second side of the inner circulation door panel 300 adjacent to the first side is provided with a first connection hole, a first connection ring is arranged in the first connection hole, the telescopic end of the hydraulic rod 310 is provided with a second connection ring, and the second connection ring is buckled with the first connection ring.

Illustratively, the first side of the inner circulating door panel 300 is an upper side, and the second side is a left side. The telescopic end of the hydraulic rod 310 is connected to the left side by the first and second connection rings of the phase buckles. Thus, when the hydraulic rod 310 extends and retracts, the inner circulation door panel 300 is driven to turn over through the two connecting rings.

Alternatively, the middle portion of the second side of the inner circulation door panel 300 extends outward to form an ear plate, and the first connection hole is opened on the ear plate. Thus, the first connection hole does not occupy the original board surface of the inner circulation door panel 300, and the indoor air is prevented from entering the first compartment 110 through the first connection hole.

Optionally, as shown in fig. 6, the inner circulation air door assembly further includes an auxiliary slat 320. The auxiliary slat 320 includes a first plate section 321 and a second plate section 322; the first end of the first plate 321 is connected to a third side of the inner circulation door panel 300 opposite to the second side, the second end of the first plate 321 is hinged to the first end of the second plate 322, and the second end of the second plate 322 is hinged to the air inlet 111.

Illustratively, the first side of the inner circulation door panel 300 is an upper side, the second side is a left side, and the third side is a right side. The first plate 321 can rotate relative to the second plate 322, and the second plate 322 can rotate relative to the air inlet 111. Thus, the first plate section 321 and the second plate section 322 rotate synchronously when the hydraulic rod 310 extends and contracts, thereby assisting the inner circulation door panel 300 to rotate so that it is more stable when rotating.

Optionally, a third side edge of the inner circulation door panel 300 is provided with a second connecting hole, and a third connecting ring is arranged in the second connecting hole; the first end of the first plate 321 is provided with a fourth connection ring, and the fourth connection ring is buckled with the third connection ring. Thus, when the inner circulation door panel 300 is turned over, the auxiliary slats 320 are rotated by the third and fourth connecting rings.

Alternatively, the middle portion of the third side of the inner circulation door panel 300 extends outward to form an ear plate, and the second connection hole is opened in the ear plate. Thus, the second connection hole does not occupy the original panel surface of the inner circulation door panel 300, and prevents the indoor air from entering the first compartment 110 through the second connection hole.

Optionally, the periphery of the air inlet 111 is provided with a mounting frame 113, and the second end of the second plate section 322 is hinged to the mounting frame 113. In this embodiment, the second end of the second plate section 322 is hinged to the lower portion of the mounting frame 113.

In some embodiments, as shown in FIG. 3, the purge assembly includes a purge plate 200, a U-shaped mounting plate 210, and a U-shaped support plate 220; the two ends of the U-shaped supporting plate 220 are respectively connected to the bottom plate and the top plate of the cabinet 100, one end of the U-shaped mounting plate 210 is located in the U-shaped groove of the U-shaped supporting plate 220, and the U-shaped groove of the U-shaped mounting plate 210 is used for mounting the purification plate 200.

In this embodiment, both ends of the U-shaped supporting plate 220 are respectively connected to the bottom plate and the top plate of the casing 100, and function to support the casing 100. When the purification plate is installed, one side of the purification plate 200 is pushed into the U-shaped groove of the U-shaped mounting plate 210 from the end of the U-shaped mounting plate 210 far away from the U-shaped support plate 220. And when the purification plate 200 is pushed into the other end of the U-shaped mounting plate 210, the side of the purification plate 200 opposite to the U-shaped support plate 220 enters the U-shaped groove of the U-shaped support plate 220. Thus, both side edges of the purification plate 200 are defined by the U-shaped grooves of the U-shaped support plate 220 and the U-shaped groove of the U-shaped mounting plate 210, respectively, thereby stably mounting the purification plate 200.

Optionally, the U-shaped support plate 220 and the U-shaped mounting plate 210 are perpendicular to each other.

Illustratively, the cabinet 100 is constructed in a rectangular parallelepiped structure, the U-shaped mounting plate 210 is disposed parallel to a bottom plate of the cabinet 100, and the U-shaped supporting plate 220 is disposed perpendicular to the bottom plate of the cabinet 100. The purification plate 200 is constructed as a plane-shaped plate member such that the purification plate 200 is perpendicular to the bottom plate of the cabinet 100.

Still further illustratively, the cabinet 100 is constructed in a rectangular parallelepiped structure, and the purification plate 200 divides the cabinet 100 into a first compartment 110 and a second compartment 120 of the same size.

Optionally, a detachable service plate 230 is provided at the front side of the cabinet 100, and a first end of the U-shaped mounting plate 210 extends toward the service plate 230, so that the purification plate 200 is fitted into the U-shaped mounting plate 210 after the service plate 230 is removed.

In this embodiment, when installing or replacing the purification plate 200, the maintenance plate 230 is first removed, and then one side of the purification plate 200 is pushed into the U-shaped groove of the U-shaped mounting plate 210 from the first end of the U-shaped mounting plate 210 until the side of the purification plate 200 opposite to the U-shaped support plate 220 is pushed into the U-shaped groove of the U-shaped support plate 220.

Illustratively, the cabinet 100 is configured as a rectangular parallelepiped structure, including a front side plate 101. The middle part of the front side plate 101 is provided with a maintenance opening, and the maintenance opening is blocked by a maintenance plate 230. The maintenance plate 230 is fixed to the front side plate 101 at the periphery of the maintenance opening by a bolt fastener. After the bolt fasteners of the service plate 230 are loosened, the service plate 230 can be removed to expose the service opening, so that the purification plate 200 can be installed in the U-shaped installation plate 210 through the service opening.

Optionally, the U-shaped supporting plate 220 is near the rear side of the casing 100, and the second end of the U-shaped mounting plate 210 extends into the U-shaped groove of the U-shaped supporting plate 220.

Illustratively, the cabinet 100 is configured as a rectangular parallelepiped structure, including opposing front and rear side panels 101 and 101. The U-shaped supporting plate 220 is close to the rear side plate, the maintenance plate 230 is arranged on the front side plate 101, a first end of the U-shaped mounting plate 210 extends to the maintenance plate 230, and a second end of the U-shaped mounting plate extends into the U-shaped supporting plate 220.

Alternatively, the lower end of the U-shaped supporting plate 220 is extended outward of the U-shaped groove to form an ear plate, so as to be connected to the bottom plate of the casing 100 through the ear plate; and/or, the upper end of the U-shaped supporting plate 220 extends outward toward the U-shaped groove to form an ear plate, so as to be connected to the top plate of the casing 100 through the ear plate.

In this embodiment, the two opposite side walls of the end of the U-shaped supporting plate 220 extend 90 degrees out of the U-shaped groove to form the ear plate. The lug plate is provided with a lug hole, and the lug plate can be fixed by using a bolt fastener matched with the lug hole.

Illustratively, the U-shaped support plate 220 is provided with ear plates at both the lower and upper ends thereof. The U-shaped support plate 220 is fixed to the bottom plate of the casing 100 by using bolt fasteners through the ear holes of the ear plates at the lower end, and the U-shaped support plate 220 is fixed to the top plate of the casing 100 by using bolt fasteners through the ear holes of the ear plates at the upper end.

Alternatively, as shown in fig. 4, two U-shaped mounting plates 210 are disposed side by side on the bottom plate of the cabinet 100, and one purification plate 200 is mounted on each U-shaped mounting plate 210. This increases the number of the purification plates 200, which is advantageous for improving the purification effect of the air.

Optionally, the widths of the U-shaped slots of the two U-shaped mounting plates 210 are different to mount the purification plates 200 with the thicknesses adapted to the widths of the corresponding U-shaped slots, respectively. Thus, the purification plates 200 having different thicknesses are installed according to purification requirements.

Illustratively, a thinner purge plate 200 is installed with a U-shaped mounting plate 210 having a narrow U-shaped slot under small purge requirements, a thicker purge plate 200 is installed with a U-shaped mounting plate 210 having a wider U-shaped slot under moderate purge requirements, and two purge plates 200, both thicker and thinner, are installed with two U-shaped mounting plates 210 under larger purge requirements.

Optionally, there is a gap between the two U-shaped mounting plates 210. In this way, interference between the two purification plates 200 is avoided when the two purification plates 200 are respectively fitted into the corresponding U-shaped mounting plates 210.

Alternatively, as shown in fig. 3, two U-shaped mounting plates 210 are oppositely disposed on the bottom and top plates of the cabinet 100, respectively, to mount the lower and upper sides of the purification plate 200, respectively.

In this embodiment, the lower side of the purification plate 200 is located in the U-shaped groove of the U-shaped mounting plate 210 on the bottom plate of the cabinet 100, the upper side of the purification plate 200 is located in the U-shaped groove of the U-shaped mounting plate 210 on the top plate of the cabinet 100, and the rear side of the purification plate 200 is located in the U-shaped groove of the U-shaped support plate 220. Thus, the purification plate 200 is more stable.

In some embodiments, as shown in fig. 8, the first compartment 110 is further provided with a fresh air opening 114, and the fresh air opening 114 is communicated with the outdoor environment. The indoor unit further includes an external circulation air door assembly disposed in the first compartment 110 and located at the fresh air opening 114 for adjusting an air intake rate of the fresh air opening 114.

In this embodiment, indoor air enters the first compartment 110 from the air inlet 111, outdoor fresh air enters the first compartment 110 from the fresh air inlet 114, and the air inlet amount of the fresh air inlet 114 is adjusted by the external circulation air door assembly. The indoor air and the fresh outdoor air are mixed in the first compartment 110 and enter the second compartment 120 after being purified by the purifying component. The purified mixed air exchanges heat with the heat exchange component in the second compartment 120, and the air after heat exchange is blown back to the indoor from the air outlet 121 to refrigerate/heat the indoor environment. Therefore, the indoor unit can realize multiple functions, and has the functions of refrigeration/heating, purification and fresh air introduction.

Optionally, as shown in fig. 9 and 10, the external circulation air door assembly includes a fresh air bracket 410 and a fresh air door panel 400. Wherein, the fresh air bracket 410 is fixed on the side wall of the first compartment 110 and is positioned at one side of the fresh air port 114; the fresh air door panel 400 corresponds to the fresh air port 114 and is provided with a fresh air rotating shaft 401 at one side; the fresh air rotating shaft 401 is hinged to the fresh air support 410, and the fresh air door panel 400 is turned over relative to the fresh air support 410 through the fresh air rotating shaft 401 to close or avoid the fresh air opening 114.

Illustratively, the fresh air bracket 410 is fixed on the upper side of the fresh air opening 114, and the upper side of the fresh air door panel 400 is provided with a fresh air rotating shaft 401. Thus, the fresh air door panel 400 can be turned over around the fresh air rotating shaft 401 on the upper side.

Optionally, the external circulation air door assembly further includes a fresh air motor 420, and the fresh air motor 420 is fixed on the fresh air bracket 410 and has a driving shaft connected to the fresh air rotating shaft 401.

Illustratively, when the fresh air motor 420 is started and the driving shaft thereof rotates in the forward direction, the fresh air rotating shaft 401 rotates synchronously to drive the fresh air door panel 400 to turn towards the direction avoiding the fresh air opening 114. When the fresh air motor 420 is started and the driving shaft thereof rotates reversely, the fresh air rotating shaft 401 rotates synchronously and then drives the fresh air door panel 400 to turn towards the direction of the closed fresh air opening 114.

Optionally, the fresh air door panel 400 has a completely closed fresh air position; the completely closed fresh air position corresponds to the plate surface of the fresh air door plate 400 abutting against the casing 100 at the periphery of the fresh air opening 114. That is, when the fresh air door 400 is turned over to the casing 100 with its panel surface abutting the periphery of the fresh air opening 114, the fresh air door 400 is located at the completely closed fresh air position. At this time, the fresh outdoor air is completely blocked from entering the first compartment 110, and only the indoor air can enter the first compartment 110 from the air inlet 111.

Illustratively, the cabinet 100 is configured as a rectangular parallelepiped structure including a front side plate 101 and a right side plate. The air inlet 111 is arranged on the front side plate 101, and the fresh air inlet 114 is arranged on the right side plate. When the fresh air door panel 400 is turned over to the right side plate adjacent to the fresh air port 114, it is located at the completely closed fresh air position, as shown in fig. 9.

Optionally, the fresh air door panel 400 has a completely avoiding fresh air position; the completely-avoiding fresh air position corresponds to the case 100 in which the panel surface of the fresh air door panel 400 is perpendicular to the periphery of the fresh air opening 114. That is, when the fresh air door panel 400 is turned over to the casing 100 whose panel is perpendicular to the periphery of the fresh air opening 114, the fresh air door panel 400 is located at a position completely avoiding fresh air, and at this time, outdoor fresh air enters the first compartment 110 with the maximum air volume.

Illustratively, the cabinet 100 is configured as a rectangular parallelepiped structure including a front side plate 101 and a right side plate. The air inlet 111 is opened in the front side plate 101, and the fresh air inlet 114 is opened in the right side plate. When the fresh air door panel 400 is turned over to be perpendicular to the right side panel, the fresh air door panel is located at a completely-avoiding fresh air position, as shown in fig. 8.

Optionally, the area of the fresh air door panel 400 is larger than the caliber of the fresh air opening 114, so as to completely close the fresh air opening 114. This is beneficial for the fresh air door panel 400 to completely close the fresh air opening 114, and effectively prevents the fresh air from entering the first compartment 110 from the fresh air opening 114.

Optionally, the fresh air door panel 400 is configured as a rectangular plate.

Optionally, the periphery of the fresh air door panel 400 is provided with a sealing rubber strip. Therefore, when the fresh air door panel 400 is turned over to the casing 100 close to the periphery of the fresh air opening 114, the sealing performance can be improved, and outdoor fresh air is prevented from entering the first compartment 110 from the gap between the fresh air door panel 400 and the casing 100.

Optionally, a pipe joint 430 is provided at one side of the fresh air inlet 114 outside the cabinet 100, and the pipe joint 430 is used for connecting an outdoor air pipe. Thus, the fresh outdoor air is guided by the outdoor air duct to enter the first compartment 110 through the fresh air inlet 114.

The embodiment of the disclosure also provides an air conditioner, which comprises the indoor unit described in any one of the embodiments.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An indoor unit, comprising:

a housing (100);

the purifying assembly is arranged in the machine shell (100) and divides the interior of the machine shell (100) into a first chamber (110) and a second chamber (120), and the first chamber (110) is communicated with the second chamber (120) through the purifying assembly; the first chamber (110) is provided with an air inlet (111), the second chamber (120) is provided with an air outlet (121), and the air inlet (111) and the air outlet (121) are both communicated with an indoor environment;

the heat exchange assembly is arranged in the second compartment (120);

the inner circulation air door assembly is arranged in the first chamber (110) and comprises an inner circulation air door plate (300) and a hydraulic driving part; the inner circulation door panel (300) corresponds to the air inlet (111), and the hydraulic driving part is connected to the inner circulation door panel (300) and used for driving the inner circulation door panel (300) to turn over so as to adjust the air inlet amount of the air inlet (111).

2. The indoor unit of claim 1, wherein the first side of the inner circulating door panel (300) is hinged to the air inlet (111) through an inner circulating rotating shaft (301); the hydraulic drive section includes:

the telescopic end of the hydraulic rod (310) is connected to the inner circulating door panel (300), the telescopic direction of the hydraulic rod (310) is matched with the overturning direction of the inner circulating door panel (300), and the telescopic end drives the inner circulating door panel (300) to overturn through the inner circulating rotating shaft (301) when being telescopic.

3. The indoor unit according to claim 2,

the second side edge of the internal circulation door plate (300) adjacent to the first side edge is provided with a first connecting hole, a first connecting ring is arranged in the first connecting hole, the telescopic end of the hydraulic rod (310) is provided with a second connecting ring, and the second connecting ring is buckled on the first connecting ring.

4. The indoor unit according to claim 3, wherein,

the middle part of the second side edge of the inner circulation door plate (300) extends outwards to form an ear plate, and the first connecting hole is formed in the ear plate.

5. The indoor unit according to any one of claims 2 to 4,

the periphery of air intake (111) is equipped with installing frame (113), the stiff end of hydraulic stem (310) is connected in installing frame (113).

6. The indoor unit of claim 3 or 4, wherein the inner circulation duct assembly further comprises:

an auxiliary strip (320) comprising a first plate section (321) and a second plate section (322); wherein a first end of the first plate segment (321) is connected to a third side of the inner circulation door panel (300) opposite to the second side, a second end of the first plate segment (321) is hinged to a first end of the second plate segment (322), and a second end of the second plate segment (322) is hinged to the air inlet (111).

7. The indoor unit according to claim 6,

a second connecting hole is formed in the third side edge of the inner circulation door plate (300), and a third connecting ring is arranged in the second connecting hole;

the first end of the first plate section (321) is provided with a fourth connecting ring, and the fourth connecting ring is buckled with the third connecting ring.

8. The indoor unit according to claim 7,

the middle part of the third side of the internal circulation door panel (300) extends outwards to form an ear plate, and the second connecting hole is formed in the ear plate.

9. The indoor unit according to claim 6,

the periphery of air intake (111) is equipped with installing frame (113), the second end of second plate section (322) articulates in installing frame (113).

10. An air conditioner characterized by comprising the indoor unit according to any one of claims 1 to 9.

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