Indoor unit of air conditioner

Abstract

The invention provides an air conditioner indoor unit which comprises a shell and an air guide device, and an air outlet is formed in the shell. The air guide device comprises an air guide cavity, the air guide cavity is used for blowing spiral air into a room, and the air guide cavity is rotatably arranged at the air outlet around the central axis of the air guide cavity. According to the air conditioner indoor unit, the problems that the air outlet distance of the air conditioner indoor unit is short and air outlet is not uniform can be solved, and air blown out by the air conditioner indoor unit is farther and more directional.

Description

Technical Field

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

[0002] In the air outlet structure of a traditional indoor unit of an air conditioner, a swing blade structure is usually arranged at the air outlet, and the air is sent in different directions by the swing of the blades. The common swing blades are in sheet shape. This air guiding structure can change the wind direction by controlling the horizontal swing blade and the vertical swing blade, but most of them only change the wind direction of the air outlet. The air blown out by the indoor unit of the air conditioner is too concentrated and strong, and the dispersibility and diffusibility are poor, resulting in a short blowing distance, thus causing uneven indoor temperature and reducing the user experience. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an indoor unit of an air conditioner that can overcome or at least partially solve the above problems, and can solve the problem of short air blowing distance of the indoor unit of the air conditioner, so as to achieve the purpose of improving the user experience.

[0004] Specifically, the present invention provides an indoor unit of an air conditioner, including:

[0005] A housing, on which an air outlet is provided;

[0006] An air guiding device, the air guiding device includes an air guiding cavity for blowing spiral air into the room, and the air guiding cavity is rotatably arranged at the air outlet around its central axis.

[0007] Optionally, the air guiding cavity is cylindrical, and a raised air guiding rail is provided on the cavity wall of the air guiding cavity, and the air guiding rail is spiral.

[0008] Optionally, the air guiding cavity is spiral.

[0009] Optionally, there are multiple air guiding devices, and the multiple air guiding devices are arranged in sequence along the length direction of the air outlet.

[0010] Optionally, the air guiding device further includes a driving shaft, and the driving shaft extends along the central axis of the air guiding cavity for driving the air guiding cavity to rotate around its central axis.

[0011] Optionally, the air guiding device further includes a connecting rod, and the driving shaft is connected to the air guiding device through the connecting rod to drive the air guiding device to rotate when the driving shaft rotates.

[0012] Optionally, the indoor unit of the air conditioner further includes:

[0013] A connecting rod;

[0014] Swing device, and the air guiding device is swingably mounted on the connecting rod through the swing device.

[0015] Optionally, the swing device includes:

[0016] A swing rod, which includes a first swing rod and a second swing rod connected vertically, and the drive shaft is rotatably mounted on the second swing rod;

[0017] A rotating shaft, which is vertically connected to the first swing rod and is rotatably mounted on the housing; the rotating shaft is clamped to the connecting rod through a clamping portion so as to drive the rotating shaft to rotate when the connecting rod moves.

[0018] Optionally, the drive shaft is perpendicular to the rotating shaft.

[0019] Optionally, the indoor unit of the air conditioner further includes a crank, which includes a first crank arm and a second crank arm connected to each other. The first crank arm is provided with a shaft hole for connecting a driving device, and the second crank arm is used for connecting a connecting rod.

[0020] In the indoor unit of the air conditioner of the present invention, the air guiding device is arranged at the air outlet. When blowing air into the room, the heat exchange air of the indoor unit of the air conditioner enters the air guiding cavity. The air guiding cavity changes the air outlet direction, changes the straight air into spiral air, and the spiral air flow can effectively reduce the air resistance and can improve the air supply distance of the indoor unit of the air conditioner. Further, since the air guiding cavity can rotate around its central axis, the wind speed of the spiral air can be increased, thereby further improving the air supply distance of the indoor unit of the air conditioner. The heat exchange air blown out by the indoor unit of the air conditioner can be evenly distributed in the room in a short time, realizing air circulation exchange within a larger space range to quickly reduce or increase the temperature in the room. In addition, compared with the straight air, the spiral air blown out by the indoor unit of the air conditioner has more directionality and can make the air supply more uniform.

[0021] From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the air guiding device in the indoor unit of the air conditioner according to an embodiment of the present invention;

[0024] Figure 2It is a schematic side view structural diagram of an air deflector device in an indoor unit of an air conditioner according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic sectional view structural diagram of an air deflector device in an indoor unit of an air conditioner according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of multiple air deflector devices in an indoor unit of an air conditioner according to an embodiment of the present invention. Detailed implementation manners

[0027] The indoor unit of the air conditioner according to the embodiment of the present invention will be described below with reference to Figures 1 to 4 In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0028] Unless otherwise clearly specified and limited, terms such as "arranged", "installed", "connected", "coupled", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific situations.

[0029] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", or "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0030] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0031] Figure 1 is a schematic structural diagram of the air guiding device in the indoor unit of an air conditioner according to an embodiment of the present invention, as Figure 1 shown, and with reference to Figures 2 to 4 , an embodiment of the present invention provides an indoor unit of an air conditioner, including a housing and an air guiding device 10. An air outlet is provided on the housing. The air guiding device 10 includes an air guiding cavity 110 for blowing spiral air into the room. The air guiding cavity 110 is rotatably arranged at the air outlet around its central axis.

[0032] In this embodiment, the air guiding device 10 is arranged at the air outlet. When blowing air into the room, the heat exchange air of the indoor unit of the air conditioner enters the air guiding cavity 110. The air guiding cavity 110 changes the air outlet direction, changing the air from straight air to spiral air. The spiral air flow can effectively reduce the air resistance and can improve the air supply distance of the indoor unit of the air conditioner. Further, since the air guiding cavity 110 can rotate around its central axis, the wind speed of the spiral air can be increased, thereby further improving the air supply distance of the indoor unit of the air conditioner. The heat exchange air blown out by the indoor unit of the air conditioner can be evenly distributed in the room in a short time, realizing the air circulation and exchange within a larger space range to quickly reduce or increase the indoor temperature. In addition, compared with the straight air, the spiral air blown out by the indoor unit of the air conditioner has more directionality and can make the air supply more uniform.

[0033] In some embodiments of the present invention, the air guiding cavity 110 is cylindrical, and a raised air guiding rail is provided on the cavity wall of the air guiding cavity 110. The air guiding rail is spiral.

[0034] In this embodiment, when the indoor unit of the air conditioner is working, the fan in the indoor unit of the air conditioner runs, blowing the heat exchange air to the air outlet of the indoor unit of the air conditioner. The heat exchange air enters from the air inlet of the air guiding cylinder and then blows out of the air outlet of the air guiding cylinder into the room. Since there is a raised spiral air guiding rail in the air guiding cylinder, under the guidance of the air guiding rail, the air blows out spirally after passing through the air guiding rail. Thus, the air blown out from the air guiding cavity 110 has more directionality and blows farther, enabling the air outlet of the indoor unit of the air conditioner to reach a place farther from the air conditioner, thereby achieving a farther air supply distance.

[0035] In some embodiments of the present invention, asFigures 1 to 4 As shown, the air guiding cavity 110 is spiral.

[0036] In this embodiment, the air guiding device 10 includes spiral blades 120. The spiral blades 120 enclose a spiral air guiding cavity 110. The spiral blades 120 have an inner air guiding surface, and the inner air guiding surface communicates with the air guiding cavity 110. When the indoor unit of the air conditioner operates, the heat exchange air blown by the fan enters the air guiding cavity 110. The spiral blades 120 rotate, driving the heat exchange air in the air guiding cavity 110 to rotate, and forming a spiral air flow that blows out from the air guiding cavity 110. This makes the air blown out from the air guiding cavity 110 more directional and blows farther, so that the air blown out by the indoor unit of the air conditioner can reach a farther place from the air conditioner, thereby realizing a longer air supply distance, and further making the indoor temperature distribution uniform and quickly reducing or increasing the indoor temperature. Moreover, compared with the air guiding cylinder, the spiral blades 120 use less material in production, which can save production costs.

[0037] In some embodiments of the present invention, as Figure 4 shown, there are multiple air guiding devices 10, and the multiple air guiding devices 10 are arranged in sequence along the length direction of the air outlet.

[0038] In this embodiment, the multiple air guiding devices 10 are arranged at the air outlet. The air blown out from the air outlet enters the multiple air guiding devices 10, and the multiple air guiding devices 10 act together to make the cool air or hot air blown out by the indoor unit of the air conditioner evenly distributed in the room, realize the air circulation and exchange within a larger space range, and can quickly increase or decrease the indoor temperature.

[0039] In some embodiments of the present invention, as Figures 1 to 3 shown, the air guiding device 10 further includes a driving shaft 130. The driving shaft 130 extends along the central axis of the air guiding cavity 110 and is used to drive the air guiding cavity 110 to rotate around its central axis.

[0040] In this embodiment, the driving shaft 130 is on the central axis of the air guiding cavity 110, so that when the driving shaft 130 rotates, the air guiding device 10 can rotate self - sufficiently, realizing the uniform air supply of the air guiding device 10.

[0041] In some embodiments of the present invention, the driving shaft 130 is connected to a driving mechanism. The driving mechanism can be a motor or other rotary driving mechanisms. When the motor is turned on, the driving shaft 130 rotates, and the driving shaft 130 drives the air guiding device 10 to rotate.

[0042] In some embodiments of the present invention, as Figure 1 shown, the air guiding device 10 further includes a connecting rod 140. The driving shaft 130 is connected to the air guiding device 10 through the connecting rod 140 to drive the air guiding device 10 to rotate when the driving shaft 130 rotates.

[0043] In this embodiment, one end of the connecting rod 140 is connected to the driving shaft 130, and the other end of the connecting rod 140 is connected to the inner air guiding surface of the air guiding device 10. The driving shaft 130 and the connecting rod 140 are perpendicularly connected. When the driving shaft 130 rotates, the connecting rod 140 rotates around the driving shaft 130, thereby driving the air guiding device 10 to rotate.

[0044] In some alternative embodiments of the present invention, the indoor unit of the air conditioner further includes a connecting frame, and the driving shaft 130 is connected to the air guiding device 10 through the connecting frame to drive the air guiding device 10 to rotate when the driving shaft 130 rotates.

[0045] In this embodiment, the driving shaft 130 is connected to the center of the connecting frame, and the end points of the connecting frame are connected to the air guiding device 10. For example, the connecting frame can be a cross, and the driving shaft 130 is perpendicularly connected to the center of the cross, that is, the driving shaft 130 and the central axis of the cross are on the same straight line. The four end points of the cross are connected to the bottom or the inner air guiding surface of the air guiding device 10. When the driving shaft 130 rotates, the cross rotates, thereby driving the air guiding device 10 to rotate. The connecting frame can also be a triangle, and the driving shaft 130 is connected to the center of the triangle. The three end points of the triangle are connected to the bottom or the inner air guiding surface of the air guiding device 10.

[0046] In some embodiments of the present invention, as Figure 1 and Figure 4 shown, the indoor unit of the air conditioner further includes a connecting rod 20 and a swinging device 30, and the air guiding device 10 is swingably mounted on the connecting rod 20 through the swinging device 30.

[0047] In this embodiment, one end of the swinging device 30 is connected to the driving shaft 130, and the other end of the swinging device 30 is rotatably connected to the housing and is also rotatably connected to the connecting rod 20. When the connecting rod 20 moves, the swinging device 30 drives the air guiding device 10 to swing along the length direction of the connecting rod to change the air outlet direction of the air guiding device 10. Further, the air supply of the indoor unit of the air conditioner is made more uniform, and the indoor temperature can be quickly reduced or increased, thereby improving the user experience.

[0048] In some embodiments of the present invention, as Figures 1 to 3 shown, the swinging device 30 includes a swing rod 310 and a rotating shaft 320. The swing rod 310 includes a first swing rod 311 and a second swing rod 312 that are perpendicularly connected, and the driving shaft 130 is rotatably mounted on the second swing rod 312. The rotating shaft 320 is perpendicularly connected to the first swing rod 311, and the rotating shaft 320 is rotatably mounted on the housing. The rotating shaft 320 is clamped to the connecting rod 20 through a clamping portion 330 to drive the rotating shaft 320 to rotate when the connecting rod 20 moves.

[0049] In this embodiment, the swing device 30 is in a Z shape. The second swing rod 312 is arranged parallel to the rotating shaft 320. The first swing rod 311 is arranged perpendicular to the second swing rod 312 and the rotating shaft 320. The driving shaft 130 is arranged perpendicular to the second swing rod 312. When the connecting rod 20 moves along the length direction of the connecting rod 20, one end of the engaging portion 330 engaged with the connecting rod 20 moves along with the connecting rod 20. The other end of the engaging portion 330 is fixed on the rotating shaft 320. The rotating shaft 320 can only rotate so that the engaging portion 330 can only rotate in the opposite direction around the rotating shaft 320 to drive the air guiding device 10 to swing. The swinging direction of the air guiding device 10 is opposite to the moving direction of the connecting rod 20. The swing device has a simple structure, low assembly difficulty, and saves production costs.

[0050] In some embodiments of the present invention, as Figure 1 and Figure 4 shown, the connecting rod 20 is provided with engaging holes corresponding to the air guiding devices 10 one by one. The swing device 30 is connected to the connecting rod 20 by an engaging manner. The air guiding device 10 is rotatable relative to the connecting rod 20 to realize the change of the air outlet direction of the air guiding device 10. The connecting rod 20 can simultaneously pull a plurality of air guiding devices 10 to swing to realize large-range air supply, so that the air outlet of the indoor unit of the air conditioner is more uniform, and the indoor temperature can be quickly reduced or increased.

[0051] In some embodiments of the present invention, the driving shaft 130 is engaged on the second swing rod 312, and the driving shaft 130 is connected to a driving device.

[0052] In this embodiment, the second swing rod 312 is provided with a card slot. The aperture of the card slot is larger than the aperture at the opening of the card slot. The driving shaft 130 is provided with a card block. The driving shaft 130 is inserted into the card slot. The card block is stuck at the opening of the card slot to realize the rotatable connection between the driving shaft 130 and the second swing rod 312.

[0053] In some embodiments of the present invention, the lower end of the driving shaft 130 includes two symmetrically and spaced connecting portions. The connecting portion includes a first curved surface, an annular plane, and a second curved surface. The annular plane and the second curved surface are the outer peripheral surfaces of the card block. The first curved surface is arranged vertically, and the annular plane is arranged horizontally. The lower edge of the first curved surface is connected to the inner edge of the annular plane. The upper edge of the second curved surface is connected to the inner edge of the annular plane, and the second curved surface is tapered from top to bottom.

[0054] During installation, the drive shaft 130 is inserted into the card slot. Since there is a gap between the two connecting parts, under the extrusion of the edge of the card slot, the two connecting parts converge inward, and the clamping block smoothly enters the card slot. After the clamping block enters the card slot, the clamping block is no longer under extrusion, and the two connecting parts return to their original positions. The clamping block is stuck at the opening of the card slot, completing the rotatable connection between the drive shaft 130 and the second swing rod 312. During disassembly, press the two first curved surfaces by hand to make the clamping block converge inward, and pull out the drive shaft 130 to complete the disassembly of the drive shaft 130 and the second swing rod 312. The clamping structure is simple, and the installation and disassembly processes are relatively convenient.

[0055] In some embodiments of the present invention, such as Figures 1 to 3 shown, the drive shaft 130 is perpendicular to the rotating shaft 320.

[0056] In this embodiment, the drive shaft 130 is parallel to the plane where the air outlet is located. The air guiding device 10 swings along the length direction of the air outlet. No matter how the air guiding device 10 swings, the drive shaft 130 is always perpendicular to the rotating shaft 320.

[0057] In some embodiments of the present invention, such as Figure 2 and Figure 3 shown, the indoor unit of the air conditioner further includes a crank 40. The crank 40 includes a connected first crank arm 410 and a second crank arm 420. The first crank arm 410 is provided with a shaft hole for connecting the driving device 50, and the second crank arm 420 is used to connect the connecting rod 20.

[0058] In this embodiment, the first crank arm 410 and the second crank arm 420 can be perpendicularly arranged. The first crank arm 410 rotates along its own axis, causing the second crank arm 420 to rotate around the first crank arm 410, thereby driving the connecting rod 20 to perform a reciprocating motion.

[0059] In some embodiments of the present invention, a connection hole is provided at the end of the connecting rod 20, and the second crank arm 420 is inserted into the connection hole of the connecting rod 20 through a plug.

[0060] In some embodiments of the present invention, such as Figures 2 to 4 shown, the indoor unit of the air conditioner further includes a driving device 50.

[0061] In this embodiment, one end of the first crank arm 410 has a shaft hole along the direction of the first crank arm 410. The output end of the driving device 50 is installed into the shaft hole and then fixed to prevent the output end of the driving device 50 from rotating in the shaft hole. The driving device 50 operates to drive the first crank arm 410 to rotate.

[0062] In some embodiments of the present invention, the first crank arm 410 and the output end of the motor have transverse fixing holes. The fixing holes have internal threads, and the first crank arm 410 and the output end of the motor are fixed through bolts.

[0063] In some embodiments of the present invention, the driving device 50 is disposed at one end of the connecting rod 20, and the other end of the connecting rod 20 is movably connected to the housing.

[0064] In some alternative embodiments of the present invention, driving devices 50 are disposed at both ends of the connecting rod 20, and the driving devices 50 at both ends of the connecting rod 20 rotate in opposite directions.

[0065] In some embodiments of the present invention, the driving device 50 is a motor.

[0066] In some alternative embodiments of the present invention, the driving device 50 is other rotary driving devices.

[0067] Preferably, when the indoor unit of the air conditioner operates, the driving shaft 130 is connected to the driving device 50. The driving device 50 rotates the driving shaft 130, and the driving shaft 130 drives the connecting rod 140 to rotate around the driving shaft 130, thereby driving the air guiding device 10 to rotate. The heat exchange air blows out from the indoor unit of the air conditioner, passes through the air guiding device 10, and forms a spiral air flow. When the motor is turned on, the output end of the motor rotates. The output end of the motor drives the first crank arm 410 to rotate, causing the second crank arm 420 to rotate around the first crank arm 410. The second crank arm 420 drives the connecting rod 20 to perform a reciprocating motion. A clamping portion 330 is connected between the rotating shaft 320 and the connecting rod 20, and the clamping portion 330 swings in a direction opposite to that of the connecting rod 20. Thereby driving the swing rod 310 and the driving shaft 130 to swing, so as to realize the swing of the air guiding device 10.

[0068] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. An indoor unit of an air conditioner, characterized in that, Comprising: A housing, on which an air outlet is provided. An air guiding device, the air guiding device includes an air guiding cavity for blowing spiral air into the room, and the air guiding cavity is rotatably arranged at the air outlet around its central axis.

2. The indoor unit of an air conditioner according to claim 1, wherein The air guiding cavity is cylindrical, and raised air guiding rails are provided on the cavity wall of the air guiding cavity, and the air guiding rails are spiral.

3. The indoor unit of an air conditioner according to claim 1, wherein The air guiding cavity is spiral.

4. The indoor unit of an air conditioner according to claim 1, wherein There are multiple air guiding devices, and the multiple air guiding devices are arranged in sequence along the length direction of the air outlet.

5. The indoor unit of an air conditioner according to claim 1, wherein The air guiding device further includes a driving shaft, and the driving shaft extends along the central axis of the air guiding cavity for driving the air guiding cavity to rotate around its central axis.

6. The indoor unit of an air conditioner according to claim 5, wherein The air guiding device further includes a connecting rod, and the driving shaft is connected to the air guiding device through the connecting rod to drive the air guiding device to rotate when the driving shaft rotates.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The indoor unit of the air conditioner further includes: A connecting rod; A swinging device, and the air guiding device is swingably mounted on the connecting rod through the swinging device.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The swinging device includes: A swing rod, the swing rod includes a first swing rod and a second swing rod connected vertically, and the driving shaft is rotatably mounted on the second swing rod; A rotating shaft, the rotating shaft is vertically connected to the first swing rod, and the rotating shaft is rotatably mounted on the housing; the rotating shaft is clamped to the connecting rod through a clamping portion to drive the rotating shaft to rotate when the connecting rod moves.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The driving shaft is perpendicular to the rotating shaft.

10. The indoor unit of an air conditioner according to claim 7, wherein The indoor unit of the air conditioner further includes a crank, the crank includes a first crank arm and a second crank arm connected together, the first crank arm is provided with a shaft hole for connecting a driving device, and the second crank arm is used for connecting the connecting rod.

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