CN109425032B - Indoor unit of air conditioner - Google Patents

Abstract

The invention discloses an indoor unit of an air conditioner, and provides an indoor unit of an air conditioner, which comprises: the air conditioner comprises a body and an air outlet panel, wherein the body is provided with a top side, a bottom side and a side part for connecting the top side and the bottom side, and the side part of the body is provided with an air suction surface; the air outlet panel at least partially covers the bottom side of the body and is provided with an air outlet; wherein, machine in air conditioning still includes: the axial flow fan is arranged in the body, the axial direction of the axial flow fan is vertical to the top side, an air inlet side and an air outlet side are formed when the axial flow fan rotates, the air outlet side is positioned below the axial flow fan, and the air outlet side faces the air outlet panel; the heat exchanger is positioned on the inner side of the air suction surface and arranged around the axial flow fan; and an electrical component disposed below the axial flow fan. The air conditioner indoor unit can reduce the height of the whole unit and is convenient for installation and maintenance of electrical components.

Description

Indoor unit of air conditioner

Technical Field

The invention relates to an air conditioner indoor unit, in particular to an air conditioner indoor unit installed on a suspended ceiling.

Background

The indoor set of common ceiling type air conditioner is installed in indoor furred ceiling, and the air-out panel cooperation is in the pilot hole of furred ceiling. These air conditioning indoor units are often used in office environments.

The air-conditioning indoor unit installed on the suspended ceiling does not occupy the wall surface and can not conflict with indoor furniture, so that the air-conditioning indoor unit is widely used. However, in the case of such an air conditioning indoor unit, most of the volume of the air conditioning indoor unit is accommodated above the ceiling, and the installation of the air conditioning indoor unit requires a large space above the ceiling, typically not less than 40 cm. Therefore, there is a demand for a ceiling-mounted air conditioning indoor unit that is compact in height.

On the other hand, the electrical components of the ceiling-mounted air conditioning indoor unit are generally disposed outside the casing, and thus maintenance is very inconvenient.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an air conditioner indoor unit, which comprises: the air conditioner comprises a body and an air outlet panel, wherein the body is provided with a top side, a bottom side and a side part for connecting the top side and the bottom side, and the side part of the body is provided with an air suction surface; the air outlet panel at least partially covers the bottom side of the body and is provided with an air outlet; wherein, machine in air conditioning still includes: the axial flow fan is arranged in the body, the axial direction of the axial flow fan is vertical to the top side, an air inlet side and an air outlet side are formed when the axial flow fan rotates, the air outlet side is positioned below the axial flow fan, and the air outlet side faces the air outlet panel; the heat exchanger is positioned on the inner side of the air suction surface and arranged around the axial flow fan; and an electrical component disposed below the axial flow fan. Because the electric components are arranged below the axial flow fan, the overall size of the air conditioner indoor unit is minimized, and the structure of the body component is regular, so that the installation of the overall unit is convenient.

The arrangement position of the electric components not only reduces the height of the whole machine, but also avoids the influence of the electric components on the delivered air flow.

According to still another aspect of the present invention, the air conditioning indoor unit further includes an accommodating portion for accommodating the electrical component. The body comprises a shell, and an air guide part and a drain pan which are contained in the shell. The receiving portion may be fixed to the air guide part, the drain pan, or the outlet panel. The accommodating part is simple in installation structure, and the production efficiency of the air conditioner indoor unit is improved.

Preferably, the receiving portion is at least partially embedded in a central portion around which the blades of the axial flow fan are wound. The installation of the containing part fully utilizes the space of the central part of the axial flow fan, and further reduces the overall height of the air conditioner indoor unit.

Preferably, the side of the accommodating part facing the axial flow fan is in a shape of a Chinese character 'tu', and the electric components are installed into the accommodating part from the side of the accommodating part facing the air outlet panel. The shape of the side surface of the accommodating portion in the shape of a letter "dogbone" advantageously guides the blown air flow to the outlet port, the blown air flow is smoother, and the electrical component assembly is simple.

Preferably, a flow guiding structure is provided on a side of the receiving portion facing the axial flow fan. The guide structure may include a plurality of guide vanes disposed substantially vertically at an edge of a side of the receiving portion facing the axial flow fan. The arrangement of the diversion structure ensures that the blown air flow is uniformly distributed, and the real 360-degree air supply is realized.

Preferably, the receiving portion has a support rod provided at a corner of the body facing the axial flow fan for connecting the receiving portion to the air guide member or the drain pan or the outlet panel. The support rod has a windward side facing the airflow and a leeward side facing away from the airflow, and the leeward side of the support rod may be provided with a wiring portion. The mounting structure of the receiving portion is simple, and the support rod does not add excessive resistance to the airflow.

According to yet another aspect of the invention, the outlet opening of the outlet panel is arranged around the periphery of the outlet panel. The air outlet panel is the polygon, and the air outlet is equipped with into a plurality ofly, and every air outlet is equipped with wind blade, and the wind blade of every air outlet all is equipped with step motor in order to control wind blade's switching. Like this, the user can adjust air supply angle, air supply direction according to actual demand, promotes the comfort level.

According to a further aspect of the invention, the electrical component comprises one or more of an electrical box, a control device, an LED lamp, a wireless communication device, a damper, an electrically operated valve, a projection device.

In the invention, the air-conditioning indoor unit body can be any one of square, round and polygonal.

According to still another aspect of the present invention, the indoor unit of an air conditioner further includes a cover plate disposed at a middle portion of the outlet panel in alignment with the electric components. The cover plate improves the attractiveness of the indoor unit, further protects the electric part and improves safety.

According to the air-conditioning indoor unit, the air is supplied from the side part and is discharged from the bottom side through the axial flow fan, so that the size of the whole unit in the vertical direction can be reduced as much as possible, and the height of a suspended ceiling is saved. The height of the whole machine size of the indoor machine is reduced while the requirement of the refrigeration efficiency is met. The air inlet and the air outlet of the indoor unit of the air conditioner are not arranged on the same plane any more, and compared with the existing indoor unit, the indoor unit of the air conditioner has the advantage that the size in the horizontal direction is reduced.

The pinch plate specification of the integrated ceiling mainly comprises: 300mm X300 mm, 600mm X600 mm, for the convenience of installation, the air-out panel size can be set for slightly being greater than 600mm X600 mm, and the size of the shell of embedding in the furred ceiling can be set for slightly being less than 600mm X600 mm. An air conditioning indoor unit of this size is particularly suitable for integrated ceiling installations. According to the air-conditioning indoor unit 1, four ceiling modules with the specification of 300mm X300 mm or one ceiling module with the specification of 600mm X600 mm can be dismounted for installation, other operations (such as hole opening) on the ceiling modules are not needed, the size of an indoor unit body is slightly smaller than that of an installation hole formed by the four ceiling modules, and the installation is convenient; the size of the air outlet panel is slightly larger than the mounting holes formed by the four suspended ceiling modules, so that the mounting attractiveness is ensured. In addition, the air conditioner indoor unit can also be arranged in an opening formed in the integrated ceiling.

In addition, the electric components in the air-conditioning indoor unit are arranged close to the air outlet panel on the air outlet side of the axial flow fan, the maintenance of the electric components is very convenient, and the operation can be carried out from the lower part of the suspended ceiling only by detaching the cover plate at the middle part of the air outlet panel.

In addition, the arrangement of the support rods of the receptacle of the electrical component and the guide vanes thereon is such that the air flow flowing out from between the air guide ring and the edge of the receptacle is evenly distributed over 360 degrees around the axis of rotation. Meanwhile, the air guide blades independently controlled by the stepping motor are matched, so that air outlet of the indoor unit of the air conditioner is smooth and uniform, energy consumption is saved, and the comfort level of a human body is improved.

Drawings

Fig. 1 shows a perspective view of an air conditioning indoor unit according to the present invention, in which a wind outlet panel is removed so as to show a part of an internal structure.

Fig. 2 shows a side sectional view of an air conditioning indoor unit according to the present invention.

Fig. 3 is a front view illustrating an outlet panel in an air-conditioned room according to the present invention.

Fig. 4 shows a perspective view of an accommodating portion for accommodating an electrical component.

Fig. 5 shows a front view of a housing for housing electrical components.

Detailed Description

The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.

Fig. 1 shows an installed state of an air conditioning indoor unit 1 according to the present invention in a bottom perspective view. The indoor unit 1 of the air conditioner mainly comprises a body 10 and an air outlet panel 30 (see fig. 2 and 3), wherein the body 10 is usually installed in a suspended ceiling of a room, and the air outlet panel 30 is installed on the body 10 below the suspended ceiling and covers a mounting opening formed in the suspended ceiling. The body 10 generally includes an outer shell 18 and body internal components. The housing 18 is typically a metal outer frame, and as shown in fig. 2, the body inner member mainly includes a fixing member such as a wind guide ring and a drain pan 26 disposed in the housing 18, and is fitted into the housing 18. In addition, the body 10 of the air conditioning indoor unit 1 includes a heat exchanger 40, an axial flow fan 50, and an electrical component 60, which are all housed in an internal cavity formed by the casing 18.

As shown in fig. 1, the air conditioning indoor unit 1 has a substantially rectangular parallelepiped shape as a whole, that is, the air conditioning indoor unit 1 has a substantially square cross section in the horizontal direction. As shown in fig. 3, the outlet panel 30 is substantially square, and is used in cooperation with the rectangular parallelepiped main body 10 of the indoor unit 1. According to a preferred embodiment of the present invention, the body 10 of the air conditioning indoor unit 1 comprises a top side, a bottom side opposite to the top side, and four side portions 11 connected between the top side and the bottom side. It should be noted that, in a state where the air conditioning indoor unit 1 according to the present invention is normally installed, the top side of the body 10 faces upward and the bottom side faces downward, and the bottom side of the body 10 is connected to the outlet air panel 30. The side 11 of the main body 10 forms a suction surface for air flowing in, and the outlet panel 30 at the bottom of the main body 10 is provided with an outlet 31 for air flowing out.

The top side of the housing 10 may include an imperforate cover plate, typically made of metal, which may have ribs disposed thereon for stiffening structure.

In the air conditioning indoor unit 1 according to the present invention, the axial flow fan 50 is employed, that is, when the fan 50 is operated, the blades 51 push the air to flow in the same direction as the axis of the fan 50. As shown in fig. 2, the axial flow fan 50 is installed with its rotation axis substantially perpendicular to the top side of the casing 18, and the air outlet side of the axial flow fan 50 faces the air supply surface of the air outlet panel 30. During the operation of the air conditioning indoor unit 1, the blades 51 of the axial flow fan 50 rotate around the rotation axis, so that the airflow enters from the suction surface of the side portion 11 of the casing 18, passes through the air guiding component along the axial direction of the axial flow fan 50, is conveyed to the air outlet panel 30 at the bottom side of the casing 18, and finally flows out from the air outlet 31 of the air outlet panel 30. In the air guide path of the present invention, the top side of the casing 18 of the air conditioning indoor unit 1 does not need to be provided with a large-area airflow inlet in particular.

Further, as shown in fig. 2, the heat exchanger 40 of the indoor unit 1 of the air conditioner is disposed around the axial flow fan 50 along the suction surface of the casing 18. Along the air flow path of the indoor unit, the heat exchanger 40 is located between the suction surface of the casing 18 and the air inlet side of the axial flow fan 50, and the air flow entering the indoor unit 1 through the suction surface flows through the heat exchanger 40 to exchange heat and then enters the axial flow fan 50. The heat exchanger 40 preferably extends around the axial fan 50.

In the preferred embodiment of the present invention, as shown in fig. 2, the wind guiding component in the main body 10 mainly includes a wind guiding ring, and the wind guiding ring surrounds and is arranged substantially coaxially with the blades 51 of the axial flow fan 50. The wind-guiding circle includes the air inlet edge that expands outward and expands the air-out edge outward. The drain pan 26 is disposed below the heat exchanger 40 to collect the condensed water. Further, the wind guide member may further include a wind guide inner frame (not shown) disposed between the wind outlet panel 30 and the drain pan 26.

According to a preferred embodiment, the drain pan 26 is made of a foam material and the deflector is made of a resin material. The drain pan 26 may be molded integrally with the wind guide ring, the wind inlet edge and the wind outlet edge of the wind guide ring being connected to the drain pan 26, and the wind outlet edge of the wind guide ring being attached to the lower surface of the drain pan 26 facing the wind outlet panel 30. Since the drain pan 26 and the air guide ring are integrally formed as a single internal body member, the installation of the drain pan 26 and the air guide ring can be completed by simply fitting the member into the housing 18 during the installation process.

Fig. 3 shows a front view of the outlet panel 30 of the air conditioning indoor unit 1 according to the present invention. As can be seen from fig. 3, the outlet panel 30 is substantially square, and the outlet opening 31 is arranged around the peripheral edge of the whole square. Specifically, each air outlet 31 on the air outlet panel 30 is trapezoidal, and four trapezoidal air outlets 31 are arranged around the air outlet panel 30, and the sides of the air outlets 31 are adjacent to each other, so as to form an air outlet of 360 degrees. Preferably, the adjacent air outlets 31 are spaced apart from each other by a support portion pivotally holding the air guide blade 32. Each air outlet 31 is provided with a plurality of air guide blades 32, the air guide blades 32 are approximately parallel to the edge of the air outlet panel 30, and the length of each air guide blade 32 is gradually reduced from outside to inside. The support portion of the outlet panel 30 pivotally supports the air guide blade 32, and the air guide blade 32 is pivoted between the closed position and the open position on command under the control of the motor.

Although the illustrated outlet panel 30 is square, other polygonal shapes are possible. When the air outlet panel is set to be polygonal, the air outlet still surrounds the whole periphery of the air outlet panel to form an air outlet with 360 degrees. For example, the outlet panel 30 may be configured in a polygonal shape or a circular shape.

Preferably, the drive device for the air guide blades comprises a stepping motor. The stepping motor is provided particularly at a substantially middle position in the longitudinal direction of the air guide blade 32 on the inner side of the air outlet panel 30. Specifically, the air guide blades 32 in one air outlet 31 are individually driven and controlled by one stepping motor. The arrangement of the stepping motor is particularly beneficial to realizing the omnibearing air outlet of the air outlet panel 30, and meanwhile, the independent control of the air guide blades 32 in different directions can be realized, so that the air guide effect is optimized, and the comfort level is improved.

The air conditioning indoor unit 1 according to the present invention further includes an electrical component 60, where the electrical component 60 may include one or more of an electrical box, a control device, an LED lamp, a wireless communication device (e.g., WIFI, bluetooth, Zigbee, etc.), an air valve, an electric valve, and a projection device. In order to achieve the miniaturization of the whole machine and at the same time facilitate the maintenance of the electrical components 60, the electrical components 60 are arranged on the air outlet side of the axial flow fan 50. As can be seen from fig. 1, the electrical component 60 is arranged substantially directly axially below the axial fan 50. The electrical component 60 is arranged downstream of the axial flow fan 50 and upstream of the air outlet opening 31 of the air outlet panel 30 as viewed from the airflow flow path.

The electrical component 60 as shown in fig. 1 and 2 is in the form of an electrical box 61. The electrical box 61 is typically constructed of a square metal box 61. As shown in fig. 2, the air outlet 31 is disposed around the electrical component 60, and the bottom of the electrical box 61 is substantially flush with the plane of the air outlet panel 30. Alternatively, the detachable cover plate 70 is disposed at the middle portion of the air outlet panel 30, the cover plate 70 is substantially aligned with the electrical box 61, and the bottom of the electrical box 61 can be closely adjacent to the cover plate 70.

In the embodiment according to the present invention, the electrical box 61 is arranged at the air-out side of the axial flow fan 50 by being mounted in the accommodating portion 80. Fig. 4 and 5 show an electrical component accommodation portion 80 according to a preferred embodiment of the present invention.

As shown in fig. 4 and 5, the housing portion 80 has a substantially square outer contour, but the shape of the housing portion 80 is not limited to this, and for example, the outer contour of the housing portion 80 may be set to be circular. The receiving portion 80 is similar to an inverted dish-shaped container as a whole. The side of the accommodating portion 80 facing the axial flow fan 50 (i.e., the outer side of the accommodating portion 80) is integrally convexly formed into a convex surface 86 shaped like a letter "convex". Preferably, the peripheral edge of the convex surface 86 extends horizontally to form a horizontal extension. The side of the receiving portion 80 facing the outlet panel 30 is recessed (i.e., the inner side of the receiving portion 80) to form a mounting surface to which the electrical component 60 is mounted by a fastener (not shown).

In the present embodiment, the electrical component 60 is in the form of an electrical box 61, and as can be seen in fig. 1, the entire electrical box 61 is mounted into the concave mounting surface of the receptacle 80. Alternatively, the mounting surface of the receiving portion 80 may be provided in a flat surface so as to fix the electric component.

As can be seen in fig. 4, the edge of the convex surface of the receiving portion 80 is provided with a plurality of guide vanes 83, and the guide vanes 83 are arranged at the edge substantially parallel to the axis of the axial flow fan so as to uniformly distribute the air flow flowing out of the axial flow fan 50. In the embodiment shown in fig. 4, the guide vanes 83 serving as the flow guiding structure are 8 in total, and two guide vanes 83 are arranged on each side. Each deflector 83 is disposed generally vertically on the edge of the convex surface 86. Each deflector 83 may be offset in the direction of outflow of the airflow. It will be appreciated that the number of guide vanes 83 may vary, for example three guide vanes per side may be provided. Each of the guide vanes 83 has an air inlet end directed toward the axial flow fan 50 and an air outlet end opposite to the air inlet end. In order to specifically adjust the direction of each guide vane 83 so as to evenly distribute the supply air flow, the guide vane 83 is disposed offset with respect to the radial direction of the axial flow fan 50 so as to guide the air flow from the concentration side to the loss side. In the present embodiment, the air flow at the corner of the air conditioning indoor unit 1 is weak, so as shown in fig. 4, the air outlet ends of some of the guide vanes 83 (usually near the support rods 85) are offset toward the corner, and accordingly, when the accommodating part 80 is installed in the casing 10, the air outlet ends of the guide vanes 83 are offset to point at the corner of the air outlet panel 30 of the air conditioning indoor unit 1.

In order to reduce the overall height of the air conditioning indoor unit 1 as much as possible, according to a preferred embodiment of the present invention, the receiving portion 80 for placing the electrical component 60 is at least partially inserted into the central recess surrounded by the blades 51 of the axial fan 50, and in particular, the convex surface 86 of the receiving portion 80, which is convex outward, is at least partially inserted into the central recess surrounded by the blades 51 of the axial fan 50. As is apparent from the side sectional view of the air conditioning indoor unit 1 of fig. 2, the topmost portion of the accommodating portion 80 is higher than the plane in which the lowermost edges of the blades 51 of the axial flow fan 50 lie. Preferably, the most protruding portion of the convex surface 86 of the receiving portion 80 is substantially aligned with the axis of the axial flow fan 50. Like this, the whole height of indoor set can reduce as far as possible to reduce the height of headspace in the furred ceiling, compressed the installation space of indoor set, avoid the furred ceiling to cross excessively to bring the sense of oppression.

The housing 80 of the electrical component 61 is fixed to the air guide member or the drain pan of the main body inner member of the indoor unit 1 of the air conditioner via a plurality of support rods 85. As shown in fig. 1, preferably, one end of the support rod 85 is fixed to the air outlet edge of the air guide ring, and the other end of the support rod 85 is fixed to the edge of the convex surface 86 of the accommodating portion 80, so that the accommodating portion 80 is fixed relative to the air guide member or the drain pan. Preferably, the accommodating portion 80, the support rod 85 and the wind guide ring may be integrally formed of a resin material, in which case the accommodating portion 80 is formed as a part of the body inner member. In the process of assembling the air conditioning indoor unit 1, after the fan is assembled into the casing 18, the body internal member having the receiving portion 80 is integrally fitted into the casing 18, the receiving portion 80 is located on the air-out side of the axial flow fan 50, and then, the electrical component 60 can be mounted onto the mounting surface of the receiving portion 80, at which time the receiving portion 80 separates the axial flow fan 50 from the electrical component 60.

Fig. 1 shows four support rods 85. As can be seen in connection with fig. 5, the support bar 85 is located close to the diagonal of the square profile of the receptacle 80, but is offset in the same clockwise direction with respect to the diagonal. In this embodiment, the receiving portion 80 is installed in the case 18 such that a corner of the receiving portion 80 is opposite to a corner of the case and a straight edge of the receiving portion 80 is opposite to the side portion 11 of the case 18. Thus, that is, the support bar 85 is offset with respect to the diagonal of the rectangular cross-section of the body 10. Here, the direction in which the support rod 85 is offset is along the air outlet direction of the axial fan 50. The offset arrangement of the support rods 85 enables even distribution of the airflow around the rotational axis of the axial flow fan 50, reducing obstruction to the corner airflow, as compared to an arrangement in which the support rods 85 are directly disposed at diagonal positions. Especially, when the outlet panel 30 is disposed around the panel as shown in fig. 3, the offset disposition of the support rods 85 can prevent the corner air volume from being significantly different from the air volume at the straight edge of the outlet panel 30.

More importantly, the offset diagonal arrangement of the support bars 85 cooperates with the baffles 83 on the convex surface of the receptacle 80 to distribute the air flow evenly 360 degrees around the axis of rotation.

In order to minimize the obstruction of the airflow by the support bars 85, it is preferable that the windward surface of the support bars 85 facing the airflow be formed in a convex arc shape. Alternatively, the cross section of the support rod 85 perpendicular to the extending direction may be provided in an olive shape having a thick middle between both tips.

The electrical components 60 in the receiving portions 80 require wiring, and in order to facilitate the cable arrangement of the electrical components 60, the leeward side of the support bars 85 facing away from the air flow may be formed as wiring portions, such as wiring grooves, and the cables associated with the electrical components 60 are arranged along the leeward side of the support bars 85.

On the other hand, the support rod 85 extends from the housing portion 80 in a direction away from the rotational axis of the axial flow fan 50, and in this extending direction, the support rod 85 is tapered, so that the effect of blocking the air flow can be further reduced, and the air flow can be guided to be uniformly distributed.

As another embodiment, the accommodating portion 80 may be fixed relative to the outlet panel 30. Specifically, the edge of the receiving portion 80 is connected to the rear surface of the outlet panel 30, and the cover plate 70 may directly cover the mounting surface of the receiving portion 80. The cover plate 70 is preferably connected to the outlet panel 30 using a snap-fit structure. When the electrical components 60 in the receiving portion 80 need to be repaired or replaced, the cover plate 70 is directly removed from the outlet panel 30 from below the ceiling to be operated.

As shown in fig. 3, the cover plate 70 at the middle position of the air outlet 31 of the outlet panel 30 has a square shape, but other shapes are also possible. The cover plate 70 is typically molded from resin. For example, the LED lamp may be directly mounted in the receiving portion 80, and the cover plate 70 may be made of a transparent resin, so that light of the LED lamp is emitted through the transparent cover plate 70.

In addition, the air conditioning indoor unit 1 of the present invention may have other modifications. For example, the air conditioning indoor unit is integrally formed in a cylindrical shape. The body of the indoor unit of an air conditioner is formed into a cylindrical shape having a cylindrical casing in which the axial flow fan, the heat exchanger, the drain pan, and the air guide member are accommodated. The outlet panel is preferably formed in a circular shape, and the outlet is provided around the outlet panel. The circular arc lateral part of the cylindrical body forms an air suction surface, and the electric component is also arranged below the axial flow fan.

According to the air-conditioning indoor unit 1 of the invention, the axial flow fan 50 is used for enabling the side part 11 to intake air and discharge air from the bottom side, so that the size of the whole unit in the vertical direction can be reduced as much as possible, and the ceiling height can be saved. For example, in one embodiment, the height of the whole size of the air conditioning indoor unit 1 can be controlled below 300mm, but the cooling efficiency can still maintain the specified requirement.

For ease of installation, the outlet panel 30 may be sized as a 640mm by 640mm square, while the housing 18 embedded in the ceiling may be sized as 580mm by 580 mm. An air conditioning indoor unit 1 of such a size is particularly suitable for integrated ceiling installations. The pinch plate specification of the integrated ceiling mainly comprises: 300mm X300 mm, 600mm X600 mm, the air conditioning indoor unit 1 according to the present invention can be installed by removing the ceiling module, for example, four detachable ceiling modules of 300mm X300 mm and one detachable ceiling module of 600mm X600 mm, without any additional construction for the ceiling, and the panel is sized to cover the opening of the opening. In addition, such an air conditioning indoor unit 1 may be installed in an opening formed in the integrated ceiling.

In addition, the electrical component 60 in the air conditioning indoor unit 1 of the present invention is installed in close proximity to the outlet panel 30 on the air outlet side of the axial flow fan 50, so that the maintenance of the electrical component 60 is very convenient, and the operation can be performed from below the ceiling by only removing the cover plate 70 at the middle portion of the outlet panel 30.

In addition, the arrangement of the support rod 85 and the guide vane 83 of the receiving portion 80 of the electrical component 60 is such that the air flow flowing out from between the air guide ring and the edge of the receiving portion 80 is evenly distributed 360 degrees around the rotation axis. Meanwhile, the air guide blades 32 independently controlled by the stepping motor are matched, so that air outlet of the indoor unit 1 of the air conditioner is smooth and uniform, energy consumption is saved, and the comfort of a human body is improved.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims (15)

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

a body having a top side, a bottom side, and a side portion connecting the top side and the bottom side, the side portion of the body being provided with an air suction surface, an

The air outlet panel at least partially covers the bottom side of the body and is provided with an air outlet;

it is characterized in that the preparation method is characterized in that,

the air-conditioning indoor unit further comprises: the axial flow fan is arranged in the body, the axial direction of the axial flow fan is perpendicular to the top side, an air inlet side and an air outlet side are formed when the axial flow fan rotates, the air outlet side is positioned below the axial flow fan, and the air outlet side faces the air outlet panel;

a heat exchanger located inside the suction surface and disposed around the axial fan; and

and an electric component disposed below the axial flow fan, and the air conditioning indoor unit further includes an accommodation portion for accommodating the electric component, the accommodation portion being at least partially embedded in a central portion around which blades of the axial flow fan are wound, a side of the accommodation portion facing the axial flow fan being in a shape of a letter "convex" that guides a blown air flow to an air outlet, wherein the electric component is inserted from a side of the accommodation portion facing the air outlet panel, and a topmost portion of the accommodation portion is higher than a plane on which a lowermost edge of the blades of the axial flow fan is located.

2. The indoor unit of claim 1, wherein the edge of the convex surface of the shape of the letter "ao" extends horizontally to form a horizontally extending section.

3. An indoor unit of an air conditioner according to claim 1, wherein the most protruded part of the convex surface of the "dogbone" shape is substantially aligned with the axis of the axial flow fan.

4. The indoor unit of claim 1, wherein the body comprises a casing, and a wind guide member and a drain pan provided in the casing.

5. The indoor unit of air conditioner according to claim 4, wherein the receiving portion is fixed to the air guide member or the drain pan or the outlet panel.

6. An indoor unit for an air conditioner according to claim 1, wherein the electric component is inserted into the accommodating portion from a side of the accommodating portion facing the outlet panel.

7. An indoor unit of an air conditioner according to claim 6, wherein a guide structure is provided on a side of the receiving portion facing the axial flow fan.

8. The indoor unit of an air conditioner according to claim 7, wherein the flow guide structure includes a plurality of guide vanes disposed at an edge of a side of the receiving part facing the axial flow fan in parallel with an axis of the axial flow fan.

9. An indoor unit of an air conditioner according to claim 4, wherein the receiving portion has a support rod provided at a corner of the body facing the axial flow fan for connecting the receiving portion to the air guide member or the drain pan or the outlet panel.

10. An indoor unit for an air conditioner according to claim 9, wherein the support rod has a windward side facing an air flow and a leeward side facing away from the air flow, and the leeward side of the support rod is provided with a wiring portion.

11. The indoor unit of claim 1, wherein the outlet vent is disposed around a periphery of the outlet panel.

12. The indoor unit of claim 11, wherein the outlet panel has a polygonal shape, the outlet is provided in plural numbers, each outlet is provided with an air guide blade, and the air guide blade of each outlet is provided with a stepping motor to control the opening and closing of the air guide blade.

13. The indoor unit of claim 1, wherein the electrical components include one or more of an electrical box, a control device, an LED lamp, a wireless communication device, an air valve, an electrically operated valve, and a projection device.

14. The indoor unit of claim 1, further comprising a cover plate disposed at a middle portion of the outlet panel in alignment with the electrical components.

15. The indoor unit of an air conditioner according to claim 1, wherein the indoor unit body is any one of a square shape, a circular shape, and a polygonal shape.

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