CN210014459U - Indoor machine of floor air conditioner - Google Patents
Indoor machine of floor air conditioner Download PDFInfo
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- CN210014459U CN210014459U CN201920079741.1U CN201920079741U CN210014459U CN 210014459 U CN210014459 U CN 210014459U CN 201920079741 U CN201920079741 U CN 201920079741U CN 210014459 U CN210014459 U CN 210014459U
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Abstract
The utility model provides a vertical air conditioner indoor unit. Wherein the floor air conditioner indoor unit includes: the air conditioner comprises a shell, a fan and a fan, wherein a cavity is defined in the shell, and an air inlet and an air outlet are formed in the shell; the evaporator is arranged in the cavity corresponding to the air inlet and is configured to exchange heat for air entering the cavity through the air inlet; the laminar flow fan is arranged in the cavity and is configured to form laminar flow wind by utilizing a viscosity effect and blow the laminar flow wind out of the air outlet; and the double-suction centrifugal fan is arranged in the cavity and is configured to send the air subjected to heat exchange of the evaporator to the laminar flow fan. The indoor unit of the vertical air conditioner is provided with the laminar flow fan, laminar flow air supply is realized through the viscous effect, the noise is low in the air supply process, the air volume is high, and the use experience of users is improved; still be provided with double suction centrifugal fan, can effectively promote the amount of wind that gets into laminar flow fan, and then promote laminar flow fan's work efficiency.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a vertical air conditioner indoor unit.
Background
With the development of society and the increasing living standard of people, various air conditioning devices have become one of the indispensable electrical devices in people's daily life. Various air conditioning devices can help people to reach a temperature that can be adapted to when the ambient temperature is too high or too low.
The current air conditioning devices mainly include various types of air conditioners and fans, but most users consider that hot air or cold air generated by the current air conditioners is unevenly distributed in a room or a closed space, and has certain distribution limitations. In addition, the fan used in the indoor unit of the air conditioner is mainly a cross flow fan. However, although the cross flow fan has low noise, the wind pressure is too small, and the air supply distance is short. And the whole volume of the cross flow fan is large, and the actual effective volume is small, so that the space waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vertical air conditioner indoor unit that the noise is little, the wind volume is high, the wind pressure is big.
The utility model discloses a further purpose makes floor air conditioner's air-out even soft, satisfies user's travelling comfort demand.
Particularly, the utility model provides a floor air conditioner indoor unit, include: the air conditioner comprises a shell, a fan and a fan, wherein a cavity is defined in the shell, and an air inlet and an air outlet are formed in the shell; the evaporator is arranged in the cavity corresponding to the air inlet and is configured to exchange heat for air entering the cavity through the air inlet; the laminar flow fan is arranged in the cavity and is configured to form laminar flow wind by utilizing a viscosity effect and blow the laminar flow wind out of the air outlet; and the double-suction centrifugal fan is arranged in the cavity and is configured to send the air subjected to heat exchange of the evaporator to the laminar flow fan.
Optionally, the indoor unit of the floor air conditioner further comprises: a volute in which a first accommodating chamber and a second accommodating chamber are defined, the first accommodating chamber and the second accommodating chamber being communicated through a communication passage; and the double-suction centrifugal fan is arranged in the first accommodating cavity, and the laminar flow fan is arranged in the second accommodating cavity.
Optionally, the volute has two inlets and one outlet, and the outlet is disposed opposite to the air outlet; the double-suction centrifugal fan drives air subjected to heat exchange of the evaporator to enter the first accommodating cavity from the two inlets, and the air after being turned to the first accommodating cavity enters the laminar flow fan of the second accommodating cavity through the communicating channel, forms laminar flow air to be discharged from the outlet and then is blown out through the air outlet.
Optionally, the laminar flow fan, the double-suction centrifugal fan and the volute are all provided with two, and the casing comprises a front panel, a rear panel, a top plate and a bottom plate, wherein the upper portion and the lower portion of the front panel are provided with air outlets, and the middle upper portion of the rear panel is provided with an air inlet.
Optionally, the laminar flow fan comprises: laminar flow fan, comprising: the annular disks are arranged in parallel at intervals and have the same central axis, the centers of the annular disks form an air inlet channel together, and air in the cavity enters gaps among the annular disks through the air inlet channel; and the laminar flow motor is connected with the laminar flow fan and is configured to drive the plurality of annular discs to rotate so as to enable the air boundary layer close to the surfaces of the plurality of annular discs to rotate and move from inside to outside, so that laminar flow wind is formed and blown out from the air outlet.
Optionally, the laminar flow fan further comprises: the driving discs are arranged on one side of the plurality of annular discs in parallel at intervals; and a connector extending through the drive disk and the plurality of annular disks to connect the plurality of annular disks to the drive disk, the laminar flow motor further configured to: the driving disc is directly driven to rotate, and the driving disc drives the annular discs to rotate.
Optionally, a groove is formed in the center of the driving disc towards the plurality of annular discs, and the laminar flow motor is fixedly arranged in the groove; and one side of the driving disk facing the plurality of annular disks is provided with a cylindrical bulge part to guide the air flow entering the laminar flow fan and assist the formation of laminar air; or the surface of the driving disc facing the laminar flow motor is a plane, and the surface facing the plurality of annular discs is provided with a conical bulge part so as to guide the air flow entering the laminar flow fan and assist the formation of laminar flow wind.
Optionally, the connecting piece is a connecting piece, the cross section of the connecting piece is provided with two sections of curves which are sequentially arranged along the rotating direction of the annular disc, and the chord length of the two sections of curves is in a linear relation with the air quantity generated by the laminar flow fan.
Optionally, the cross section of the connecting piece has double circular arcs arranged in sequence along the direction of rotation of the annular disk: the inner arc and the back arc are both raised towards the rotating direction of the annular disk, and have the same circle center and are arranged in parallel or have different circle centers and are intersected at two ends.
Optionally, the plurality of annular disks are arranged according to one or more of the following structures: the inner diameters of the annular disks are gradually reduced from one side far away from the driving disk to the other side; the distance between two adjacent annular disks in the plurality of annular disks is gradually increased from one side far away from the driving disk to the other side; each annular disc is an arc disc which is gradually close to the driving disc from the center to the edge and protrudes towards one side of the driving disc.
The utility model discloses a vertical air conditioner indoor unit, include: the air conditioner comprises a shell, a fan and a fan, wherein a cavity is defined in the shell, and an air inlet and an air outlet are formed in the shell; the evaporator is arranged in the cavity corresponding to the air inlet and is configured to exchange heat for air entering the cavity through the air inlet; the laminar flow fan is arranged in the cavity and is configured to form laminar flow wind by utilizing a viscosity effect and blow the laminar flow wind out of the air outlet; and the double-suction centrifugal fan is arranged in the cavity and is configured to send the air subjected to heat exchange of the evaporator to the laminar flow fan. The indoor unit of the vertical air conditioner is provided with the laminar flow fan, laminar flow air supply is realized through a viscous effect, the noise is low and the air quantity is high in the air supply process, and the use experience of a user is effectively improved; still be provided with double suction centrifugal fan, can effectively promote the amount of wind that gets into laminar flow fan, and then promote laminar flow fan's work efficiency.
Further, the utility model discloses a floor air conditioner indoor unit still includes: a volute in which a first accommodating chamber and a second accommodating chamber are defined, the first accommodating chamber and the second accommodating chamber being communicated through a communication passage; and the double-suction centrifugal fan is arranged in the first accommodating cavity, and the laminar flow fan is arranged in the second accommodating cavity. The volute is provided with two inlets and one outlet, and the outlet is opposite to the air outlet; the double-suction centrifugal fan drives air subjected to heat exchange of the evaporator to enter the first accommodating cavity from the two inlets, and the air after being turned to the first accommodating cavity enters the laminar flow fan of the second accommodating cavity through the communicating channel, forms laminar flow air to be discharged from the outlet and then is blown out through the air outlet. Laminar flow fan, double suction centrifugal fan and spiral case all are provided with two, and the casing includes front panel, rear panel, roof and bottom plate, and wherein the upper portion and the lower part of front panel are provided with the air outlet, and upper portion is provided with the air intake in the rear panel. The two groups of double-suction centrifugal fans and the laminar flow fans on the upper part and the lower part can enable the air output and the air outlet comfort degree of the indoor unit of the vertical air conditioner to meet the requirements of users.
Furthermore, the indoor unit of the floor air conditioner of the present invention, the plurality of ring-shaped disks of the laminar flow fan can be arranged according to one or more of the following structures: the inner diameters of the annular disks are gradually reduced from one side far away from the driving disk to the other side; the distance between two adjacent annular disks in the plurality of annular disks is gradually increased from one side far away from the driving disk to the other side; each annular disc is an arc disc which is gradually close to the driving disc from the center to the edge and protrudes towards one side of the driving disc. The above-mentioned form that sets up a plurality of annular disks all can effectively promote laminar flow fan's amount of wind for laminar flow fan's air-out satisfies user's user demand. In addition, the connecting piece can be a connecting piece, the cross section of the connecting piece is provided with two sections of curves which are sequentially arranged along the rotating direction of the annular disc, and the chord length of the two sections of curves is in a linear relation with the air quantity generated by the laminar flow fan. The setting of connection piece can effectively promote laminar flow fan's wind pressure for after laminar flow wind blows off through the clearance between a plurality of annular disc, owing to receive the pressure differential effect, laminar flow fan outside air is impressed the annular disc through inlet air channel, and the circulation is reciprocal like this, thereby forms laminar flow air cycle. A plurality of air outlets formed by the gaps among the plurality of annular discs can enable the laminar flow fan to realize 360-degree air supply, various uncomfortable symptoms caused by direct blowing of air supply by the air conditioner are avoided for users, and the use experience of the users is further improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of an indoor unit of a floor air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to an embodiment of the present invention;
fig. 3 is an exploded view of the components of the indoor unit of the neutral air conditioner of fig. 2;
fig. 4 is a schematic view illustrating an air circulation of a laminar flow fan in an indoor unit of a floor type air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an air supply principle of a laminar flow fan in an indoor unit of a floor air conditioner according to an embodiment of the present invention;
fig. 6 is a graph illustrating the velocity profile and force profile of a laminar flow fan in an indoor unit of a floor air conditioner according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a laminar flow fan with a drive disk having a groove;
FIG. 8 is a schematic view of the laminar flow fan of FIG. 7 from another perspective;
FIG. 9 is a schematic view of the connection of a laminar flow fan with a drive disk having a conical projection to a laminar flow motor;
FIG. 10 is a schematic view of the laminar flow fan of FIG. 9;
FIG. 11 is a cross-sectional schematic view of the laminar flow fan of FIG. 9;
FIG. 12 is a schematic diagram showing the relationship between the length of the string line of the connecting piece in FIG. 11 and the wind quantity and pressure;
FIG. 13 is a schematic view showing the relationship between the installation angle of the connecting piece of FIG. 11 and the air volume and the air pressure;
FIG. 14 is a cross-sectional schematic view of a laminar flow fan having aero blades;
FIG. 15 is a schematic view of the aero blade installation angle of the laminar flow fan of FIG. 14 in relation to air flow and wind pressure;
FIG. 16 is a schematic view of the connection of a laminar flow fan with gradually changing spacing between a plurality of annular disks and a laminar flow motor;
FIG. 17 is a schematic view of the laminar flow fan of FIG. 16 coupled to a laminar flow motor from another perspective;
FIG. 18 is a schematic diagram of the gradual change of the pitch of the plurality of annular disks of the laminar flow fan of FIG. 16 as a function of the air volume and the air pressure;
FIG. 19 is a partial cross-sectional view of a laminar flow fan with a gradual change in the inner diameter of a plurality of annular disks;
FIG. 20 is a schematic diagram of the inner diameter gradient of the multiple annular disks of the laminar flow fan of FIG. 19 in relation to air flow and air pressure;
FIG. 21 is a schematic view of a central angle of a connecting line of an inner diameter and an outer diameter of a plurality of annular disks of a laminar flow fan in which the annular disks are arc-shaped disks on the same longitudinal section passing through the central axis; and
fig. 22 is a schematic diagram showing the relationship between the central angle and the air volume and the wind pressure in fig. 21.
Detailed Description
The embodiment provides a floor air conditioner indoor unit which is provided with a laminar flow fan, laminar flow air supply is realized through a viscous effect, the noise is low, the air volume is high, the air pressure is high in the air supply process, and the use experience of a user is effectively improved; and a double-suction centrifugal fan is also arranged, so that the air output and air pressure of the lower part can be effectively improved. Figure 1 is a schematic view of a floor air conditioner indoor unit 300 according to one embodiment of the present invention in a room 700, figure 2 is a schematic view showing the overall structure of an indoor unit 300 of a floor air conditioner according to an embodiment of the present invention, fig. 3 is an exploded view of the components of the indoor unit 300 of the vertical air conditioner in fig. 2, fig. 4 is a schematic view of the air circulation of the laminar flow fan 100 in the indoor unit 300 of the vertical air conditioner according to an embodiment of the present invention, fig. 5 is a schematic diagram illustrating the air supply principle of the laminar flow fan 100 in the indoor unit 300 of the floor air conditioner according to an embodiment of the present invention, fig. 6 is a graph showing the velocity distribution and force distribution of the laminar flow fan 100 in the indoor unit 300 of the floor air conditioner according to one embodiment of the present invention, fig. 7 is a structural view of the laminar flow fan 100 having the grooves 32 on the driving disk 30, and fig. 8 is a structural view of the laminar flow fan 100 from another view angle in fig. 7. As shown in fig. 1 to 4, the floor air conditioner indoor unit 300 may generally include: a housing 310, an evaporator 381, a laminar flow fan 110, and a double suction centrifugal fan 610.
Wherein, the inside of the housing 310 defines a cavity, and the housing 310 is provided with an air inlet 330 and an air outlet 320. The evaporator 381 is disposed inside the cavity corresponding to the air inlet 330, and is configured to exchange heat with air entering the cavity through the air inlet 330. The evaporator 381 may be various shapes, and the evaporator 381 shown in fig. 3 is U-shaped. It should be noted that the evaporator 381 can be configured and sized to match the intake vent 330, so that the air entering the cavity through the intake vent 330 can completely pass through the evaporator 381 for heat exchange. In addition, a water receiving tray (not shown) may be disposed below the evaporator 381 to receive the condensed water generated by the evaporator 381.
The laminar flow fan 110 may be disposed inside the cavity, and configured to generate laminar flow wind by using a viscosity effect, and to blow the laminar flow wind out of the outlet 320. The laminar flow fan 110 may include a laminar flow fan 100 and a laminar flow motor 20. Wherein laminar flow fan 100 includes: the annular disks 10 are arranged in parallel at intervals and have the same central axis, the centers of the annular disks 10 jointly form an air inlet channel 11, and air in the cavity enters gaps among the annular disks 10 through the air inlet channel 11. And the laminar flow motor 20 is connected with the laminar flow fan 100 and configured to drive the plurality of annular disks 10 to rotate, so that the air boundary layer 13 close to the surfaces of the plurality of annular disks 10 moves from inside to outside in a rotating manner, and laminar flow wind is formed and blown out from the air outlet 320. It should be noted that the laminar flow fan 100 is disposed inside the cavity corresponding to the air outlet 320, so that laminar air can smoothly flow from the air outlet 320.
Specifically, the laminar flow motor 20 drives the plurality of annular disks to rotate, so that the plurality of annular disks contact with air between each other and move with each other, and the air boundary layer 13 close to the surfaces of the plurality of annular disks is driven by the plurality of rotating annular disks to rotate from inside to outside due to the viscous effect to form laminar flow wind. A plurality of air outlets 12 are formed in the gaps between the plurality of annular disks, each air outlet 12 can supply air for 360 degrees, and laminar air discharged from the air outlets 12 is blown out to the environment outside the indoor unit 300 of the floor air conditioner through the air outlet 320. The laminar flow fan can realize 360 air supply, but the air outlet 320 can be arranged according to actual conditions, and air supply in different ranges can be realized respectively.
The double suction centrifugal fan 610 is disposed inside the cavity and configured to send air heat-exchanged by the evaporator 381 toward the laminar flow fan 110. The double-suction centrifugal fan 610 may include a double-suction centrifugal fan 611 and a centrifugal motor 612, wherein the centrifugal motor 612 drives the double-suction centrifugal fan 611 to rotate, and the double-suction centrifugal fan 610 axially supplies air and radially supplies air to achieve steering. The floor air conditioner indoor unit 300 may further include: a scroll 520 having a first accommodation chamber 523 and a second accommodation chamber 524 defined therein, the first accommodation chamber 523 and the second accommodation chamber 524 being communicated through a communication passage 525; and the double suction centrifugal fan 610 is disposed in the first accommodating chamber 523, and the laminar flow fan 110 is disposed in the second accommodating chamber 524.
The volute 520 has two inlets 522 and one outlet 521, and the outlet 521 is disposed opposite to the air outlet 320; the double-suction centrifugal fan 610 drives the air heat-exchanged by the evaporator 381 to enter the first accommodating cavity 523 from the two inlets 522, and after turning, the air enters the laminar flow fan 110 of the second accommodating cavity 524 through the communication channel 525, and the laminar flow air is discharged from the outlet 521 and blown out through the air outlet 320. The laminar flow fan 110 turned to the above direction and then enters the second accommodating cavity 524 through the communication channel 525, specifically, enters the air inlet channel 11 of the laminar flow fan 100. The outlet 521 and the air outlet 320 are matched in shape and size, so that laminar air discharged from the outlet 521 can be blown out through the air outlet 320 completely and cannot be blown to other positions of the cavity, and normal operation of other components in the cavity is prevented from being influenced.
In a specific embodiment, two laminar flow fans 110, two centrifugal fans 610 and two volutes 520 are provided, and the housing 310 includes a front panel 311, a rear panel 315, a top plate 313 and a bottom plate 314, wherein the upper and lower portions of the front panel 311 are provided with the air outlet 320, and the middle upper portion of the rear panel 315 is provided with the air inlet 330. That is, the upper and lower portions of the indoor unit 300 of the floor air conditioner are respectively provided with a set of the double suction centrifugal fan 610 and the laminar flow fan 110. By utilizing the principle of cold air descending and hot air ascending, when the vertical air conditioner indoor unit 300 is in a refrigeration mode, the rotating speeds of the centrifugal motor 612 and the laminar flow motor 20 on the upper part are higher, so that the whole space can be cooled as soon as possible; when the floor air conditioner indoor unit 300 is in the heating mode, the rotating speeds of the centrifugal motor 612 and the laminar flow motor 20 at the lower part are higher, and hot air can directly reach the feet of a user, so that the use requirement of the user is met.
The cross section of the housing 310 of the present embodiment is circular, and in other embodiments, the housing may have other shapes such as a quadrilateral shape. In addition, the air outlet 320 is only arranged on the front panel 311 in this embodiment, and 180 ° air outlet can be realized. In other embodiments, the front panel 311 and the rear panel 315 may be provided with air outlets 320, and 360 ° air supply may be achieved by arranging the air outlets 320 around the laminar flow fan 100. It should be noted, however, that the outlet 521 of the volute 520 is also configured to be 360 ° exhaust. The intake vent 330 of the housing 310 may be provided in the form of an intake grill, which can draw indoor air into the cavity through different directions and filter the air. An air guiding plate 321 may be disposed at the air outlet 320 of the housing 310 to adjust the air outlet direction of the indoor unit 300 of the vertical air conditioner. In addition, the air outlet 320 of the housing 310 may be provided with a wind shield 322 capable of being opened and closed in a sliding manner, and the air outlet 320 may be completely shielded after being closed, so as to improve the overall aesthetic property of the indoor unit 300 of the floor air conditioner and effectively prevent dust from entering the air outlet 320.
As shown in fig. 4, the laminar flow fan 100 may further include: a drive disk 30 and a link. Wherein the driving disks 30 are spaced apart and arranged in parallel on one side of the plurality of annular disks 10. And a connecting member penetrating the drive disk 30 and the plurality of annular disks 10 to connect the plurality of annular disks 10 to the drive disk 30. As shown in fig. 7, the connector may be a connecting tab 40. The laminar flow motor 20 may also be configured to: the driving disk 30 is directly driven to rotate, and the driving disk 30 drives the plurality of annular disks 10 to rotate. That is, the laminar flow motor 20 configured to rotate the plurality of annular discs 10 is dependent on the laminar flow motor 20 first rotating the driving disc 30, and then the driving disc 30 rotates the plurality of annular discs 10. In a specific embodiment, the radius of the drive disk 30 is the same as the outer diameter of the plurality of annular disks 10, and may be set in a certain range, for example, 170 mm to 180 mm, so as to constrain the occupied volume of the laminar flow fan 100 in the transverse direction, cooperatively define the number of annular disks 10 and the spacing between two adjacent annular disks 10, and constrain the thickness of the laminar flow fan 100 in the longitudinal direction, which may effectively constrain the entire occupied volume of the laminar flow fan 100. Note that, the inner diameter of the annular disk 10 refers to the radius of its inner circumference; the outer diameter refers to the radius of its outer circumference. The specific values of the outer diameter of the annular disk 10 are merely exemplary and are not intended to limit the present invention.
As shown in fig. 4, the centers of the plurality of annular disks 10 are collectively formed with an air inlet passage 11 for allowing air outside the laminar flow fan 100 to enter. A plurality of air discharge ports 12 are formed at gaps between the plurality of annular disks 10 to allow laminar air to be blown out. The process of laminar wind formed by the inward and outward rotating movement of the air boundary layer 13 is centrifugal movement, so that the speed of the air leaving the air outlet 12 is higher than that of the air entering the air inlet channel 11. The pressure difference between the air outlet 12 of the laminar flow fan 100 and the inlet of the air inlet channel 11 is wind pressure. The plurality of air outlets 12 formed by the gaps between the plurality of annular disks 10 can enable the laminar flow fan 100 to uniformly supply air at 360 degrees, thereby avoiding various uncomfortable symptoms caused by direct blowing of air by the indoor unit 300 of the floor air conditioner, and further improving the use experience of the user.
The blowing principle of the laminar flow fan 100 is derived primarily from the "tesla turbine" found in nigula tesla. Tesla turbines mainly utilize the 'laminar boundary layer effect' or 'viscous effect' of the fluid to achieve the purpose of doing work on 'turbine disks'. In the laminar flow fan 100 of this embodiment, the laminar flow motor 20 drives the driving disk 30, the driving disk 30 drives the plurality of annular disks 10 to rotate at a high speed, and the air in the intervals of the annular disks 10 contacts and moves with each other, so that the air boundary layer 13 near the surfaces of the annular disks 10 is driven by the rotating annular disks 10 to rotate from inside to outside due to the action of the viscous shear force τ, thereby forming laminar flow wind.
Fig. 6 shows a schematic diagram of the viscous shear force distribution τ (y) and velocity distribution u (y) to which the air boundary layer 13 is subjected. The viscous shear force experienced by the air boundary layer 13 is actually the resistance that each annular disk 10 generates to the air boundary layer 13. The axis of abscissa in FIG. 6 refers to the distance in the moving direction of the boundary layer 13, and the axis of ordinate refers to the boundary layer 13 in the moving directionHeight in the vertical direction. v. ofeThe air flow velocity at each point in the air boundary layer 13, δ being the thickness of the air boundary layer 13, τwIs a viscous shear force at the surface of the annular disc 10. The variable y in τ (y) and u (y) refers to the height of the cross-section of the boundary layer 13 in the direction perpendicular to the direction of movement, and L is the distance between a point on the inner circumference of the annular disk 10 and a point on the surface of the annular disk 10.τ (y) is the distribution of viscous shear forces experienced at this distance L at a cross-sectional height y of the boundary layer 13 of air; u (y) is the velocity profile at this distance L for a cross-section of the air boundary layer 13 having a height y.
The laminar flow fan 100 shown in fig. 7 and 8 has a groove 32 formed toward the plurality of annular disks 10 at the center of the driving disk 30, and the laminar flow motor 20 is fixedly disposed in the groove 32. Also, the driving disk 30 has a cylindrical protrusion 31 at a side facing the plurality of ring disks 10 to guide the flow of air entering the laminar flow fan 100 and assist in forming laminar flow wind.
In another embodiment, fig. 9 is a schematic view of a connection between a laminar flow fan 100 having a circular disk 30 with a conical protrusion 31 and a laminar flow motor 20, fig. 10 is a schematic view of the structure of the laminar flow fan 100 in fig. 9, and fig. 11 is a schematic view of a cross section of the laminar flow fan 100 in fig. 9. The surface of the driving disk 30 of the laminar flow fan 100 in fig. 9 to 11 facing the laminar flow motor 20 is a plane, and the surface facing the plurality of annular disks 10 has a conical projection 31 to guide the flow of air entering the laminar flow fan 100 and assist in forming laminar flow wind.
The main function of the driving disc 30 is to fixedly receive the laminar flow motor 20 and to be connected to the plurality of annular discs 10 through a connection member, so as to drive the plurality of annular discs 10 to rotate when the laminar flow motor 20 drives the driving disc 30 to rotate. The protruding portion 31, whether cylindrical or conical, can effectively guide the air entering the laminar flow fan 100 through the air inlet channel 11 into the gap between the annular disks 10, thereby improving the efficiency of forming laminar flow air.
In a preferred embodiment, as shown in fig. 9 to 11, the connecting member is a connecting piece 40, and the cross section of the connecting piece 40 has two curves sequentially arranged along the rotation direction of the annular disk 10, and the chord lengths of the two curves are in a linear relationship with the air quantity generated by the laminar flow fan 100. The connecting plate 40 may be provided in plural and evenly spaced throughout the drive disk 30 and the plurality of annular disks 10. The connecting pieces 40 uniformly penetrate through the driving disk 30 and the annular disks 10 at intervals, so that the connection relationship between the driving disk 30 and the annular disks 10 is stable, and further, when the laminar flow motor 20 drives the driving disk 30 to rotate, the driving disk 30 can stably drive the annular disks 10 to rotate, and the working reliability of the laminar flow fan 100 is improved.
It should be noted that the two curves 41 and 42 may be arcs, non-arcs, straight lines, etc., and the straight line may be a special curve. Where the distance between the two ends of the curve 41 is the same as the distance between the two ends of the curve 42, the chord line 51 length may be the distance between the two ends of the curve 41 or the curve 42. When the distance between the two end points of the curve 41 is different from the distance between the two end points of the curve 42, if the two ends of the curve 41 and the curve 42 are not intersected, the length of the chord line 51 can be the length of the connecting line of the middle points of the curves of the cross section of the connecting sheet 40 except the curves 41 and 42; if only one end of the curves 41 and 42 intersect, the chord line 51 length may be the length of the line connecting the midpoint of the curve of the cross-section of the connecting piece 40 excluding the curves 41, 42 and the end point of the intersection.
As shown in fig. 11, the connecting piece 40 may be a double-arc blade 401 having a cross section having double arcs arranged in sequence in the direction in which the annular disk 10 rotates: the inner arc 41 and the back arc 42, and the inner arc 41 and the back arc 42 are both convex towards the rotating direction of the annular disk 10, have the same center and are arranged in parallel. Fig. 11 is a schematic cross-sectional view of laminar fan 100 viewed from above, in which laminar flow motor 20 drives annular disk 10 to rotate clockwise, and back arcs 42 and inner arcs 41 project in the same direction as annular disk 10. In other embodiments, the laminar flow motor 20 may also drive the annular disk 10 to rotate counterclockwise, and the protruding directions of the back arc 42 and the inner arc 41 may be opposite to those shown in fig. 11.
Fig. 12 is a schematic diagram showing the relationship between the length of the chord line 51 of the connecting sheet 40 in fig. 11 and the air volume and the air pressure. Since the connecting piece 40 of the laminar fan 100 in fig. 11 is a double-arc blade 401, the distance between the two ends of the inner arc 41 is the same as the distance between the two ends of the back arc 42, and the length of the chord line 51 may be the distance between the two ends of the inner arc 41 or the back arc 42. In fig. 12, the abscissa axis bladechard indicates the length of the chord line 51 of the connecting sheet 40 of the laminar flow fan 100, the left ordinate axis Mass flow rate indicates the air volume, and the right ordinate axis Pressure indicates the air Pressure. Specifically, fig. 12 is a schematic diagram showing the relationship between the length of the chord line 51 and the air volume and the air pressure when the outer diameter, the inner diameter, the number of layers, the distance, the thickness, the installation angle of the connecting sheet 40, and the rotation speed of the laminar flow motor 20 of the annular disk 10 of the laminar flow fan 100 are all kept unchanged. The mounting angle of the connecting piece 40 of the present embodiment may be: on the same cross section of the connecting sheet 40 and the annular disk 10, a chord line 51 between both ends of the inner arc 41 forms an angle with an outer diameter 52 of the annular disk 10 passing through a midpoint of the chord line 51.
When the above-mentioned parameters are all kept unchanged, for example, in a preferred embodiment, the outer diameter of the annular disk 10 of the laminar flow fan 100 is 175 mm, the inner diameter of the annular disk 10 is 115 mm, the number of layers of the annular disks 10 is 8, the pitch of the annular disks 10 is 13.75 mm, the thickness of the annular disk 10 is 2 mm, the installation angle of the connecting piece 40 is 25.5 °, and the rotation speed of the laminar flow motor 20 is 1000rpm, it can be found that after the length of the chord line 51 is increased, both the air volume and the air pressure are greatly improved, and are substantially linear. Considering the limited space inherent in the floor air conditioner indoor unit 300, there is a certain constraint on the overall occupied volume of the laminar flow fan 100. When the outer diameter and the inner diameter of the annular disk 10 are constant, the longer the chord 51 is, the greater the air volume and the wind pressure of the laminar flow fan 100 are, but the length of the chord 51 is also restricted to a certain extent, so that the connecting piece 10 does not penetrate the annular disk 10 excessively, which leads to a decrease in the stability of the laminar flow fan 100. In summary, the length of the chord line 51 can be set to the maximum range that can be achieved, so that the air volume and the air pressure of the laminar flow fan 100 can meet the use requirements of users.
Thus, in the preferred embodiment described above, the chord line 51 length is set to the maximum range achievable while ensuring the stability of the laminar flow fan 100: 40And mm to 42 mm. When the length of the chord line 51 is set to 42 mm, the air volume of the laminar flow fan 100 may be 1741m3And h, the wind pressure can reach 118.9Pa, and the use requirements of users can be completely met. At this time, the difference between the outer diameter and the inner diameter of the annular disk 10 is 60 mm, and the length of the chord 51 is set to 42 mm, so that distances of about 9 mm are respectively reserved between the two ends of the inner arc 41 and the back arc 42 and the inner circumference and the outer circumference of the annular disk 10, and on the premise of ensuring the stability of the laminar flow fan 100, the length of the chord 51 is set to the maximum range, so that the air volume and the air pressure of the laminar flow fan 100 can meet the use requirements of users.
Fig. 13 is a schematic view showing a relation between a mounting angle α of the connecting piece 40 in fig. 11 and air volume and air Pressure, since the connecting piece 40 of the laminar fan 100 in fig. 11 may be a double-arc blade 401, a mounting angle α of the connecting piece 40 actually means an angle formed by a chord line 51 between two end points of an inner arc 41 and an outer diameter 52 of the annular disk 10 passing through a midpoint of the chord line 51 on the same cross section of the double-arc blade 401 and the annular disk 10, a abscissa axis Metal angle (α) in fig. 13 means a mounting angle of the double-arc blade 401 of the laminar fan 100, that is, an angle formed by the chord line 51 between two end points of the inner arc 41 and an outer diameter 52 of the annular disk 10 passing through a midpoint of the chord line 51 on the same cross section of the double-arc blade 401 and the annular disk 10, a left ordinate axis Mass flow rate means a Pressure air Pressure means air Pressure, specifically, fig. 13 shows that the relation between the outer diameter of the annular disk 10, the inner diameter, the chord length, the layer number, the thickness, the chord length of the double-arc blade 401, the rotation speed of the motor 20, and the linear arc angle α may be constant, and the distance between the arc angle of the inner arc blade 401 of the straight line of.
In the case where each of the above-mentioned parameters is kept constant, for example, in a preferred embodiment, the outer diameter of the ring-shaped disk 10 of the laminar fan 100 is 175 mm, the inner diameter of the ring-shaped disk 10 is 115 mm, the number of layers of the ring-shaped disks 10 is 8, the pitch of the ring-shaped disks 10 is 13.75 mm, the thickness of the ring-shaped disk 10 is 2 mm, the chord length of the double-arc blade 401 is 35 mm, the rotation speed of the laminar flow motor 20 is 1000rpm (revolutions per minute), the mounting angle α of the double-arc blade 401 may be set to-5 ° to 55 ° in consideration of the total air volume and the wind pressure, it is noted that the mounting angle α is positive when the chord line 51 between the two ends of the inner arc 41 passes through the middle point of the chord line 51 in the direction of rotation of the ring-shaped disk 10, and the mounting angle α is positive when the chord line 51 between the two ends of the ring-shaped disk 10 passes through the middle point 51 of the chord line 51 in the direction of rotation of the ring-shaped disk 10.
FIG. 14 is a schematic cross-sectional view of a laminar flow fan 100 having an aero blade 402, FIG. 15 is a schematic cross-sectional view of a mounting angle α of the aero blade 402 of the laminar flow fan 100 of FIG. 14 with respect to air volume and air pressure, in one specific embodiment, the connecting piece 40 may also be an aero blade 402. the cross-sectional view of the aero blade 402 has a double arc protruding in a direction of rotation of the ring disk 10, and the double arc includes an inner arc 41 and a back arc 42 sequentially arranged in a direction of rotation of the ring disk 10, the inner arc 41 and the back arc 42 having different centers and intersecting both ends. FIG. 14 shows a schematic cross-sectional view of the laminar flow fan 100 when the motor 20 drives the ring disk 10 to rotate clockwise, and the back arc 42 and the inner arc 41 protrude in a direction consistent with the direction of rotation of the ring disk 10. in other embodiments, the laminar flow motor 20 may also drive the ring disk 10 to rotate while the protruding direction of the back arc 42 and the inner arc 41 may be opposite to that shown in FIG.
The installation angle α of the aircraft blade 402 in fig. 15 actually refers to the angle formed by the chord line 51 between the two ends of the inner arc 41 or the back arc 42 and the outer diameter 52 of the annular disk 10 passing through the midpoint of the chord line 51 on the same cross section of the aircraft blade 402 and the annular disk 10, the abscissa axis Metal angle (α) in fig. 15 refers to the installation angle of the aircraft blade 402 of the laminar fan 100, that is, the angle formed by the chord line 51 between the two ends of the inner arc 41 or the back arc 42 and the outer diameter 52 of the annular disk 10 passing through the midpoint of the chord line 51 on the same cross section of the aircraft blade 402 and the annular disk 10, the left ordinate axis Mass flow rate refers to the air flow rate, and the right ordinate axis Pressure refers to Pressure, specifically, fig. 15 shows that the installation angle α is related to the air Pressure and the air flow rate when the outer diameter, the inner diameter, the air Pressure, the pitch, the thickness, the chord length of the aircraft blade 402, and the rotational speed of the laminar flow motor 20 are all kept constant, and the installation angle 402 of the inner chord length of the aircraft blade 41 or the chord line 51 of the straight line of the aircraft blade of this embodiment can be.
While each of the above-mentioned parameters is kept constant, for example, in a preferred embodiment, the outer diameter of the annular disk 10 of the laminar fan 100 is 175 mm, the inner diameter of the annular disk 10 is 115 mm, the number of layers of the annular disks 10 is 8, the pitch of the annular disks 10 is 13.75 mm, the thickness of the annular disk 10 is 2 mm, the chord length of the aero blade 402 is 35 mm, and the rotation speed of the laminar flow motor 20 is 1000rpm, at which time the mounting angle α of the aero blade 402 may be set to-50 ° to 15 ° in consideration of the wind pressure and the wind volume.
Fig. 16 is a schematic diagram of connection between the laminar flow fan 100 and the laminar flow motor 20 with gradually changing pitches of the plurality of annular disks 10, fig. 17 is a schematic diagram of connection between the laminar flow fan 100 and the laminar flow motor 20 from another view angle in fig. 16, and fig. 18 is a schematic diagram of relations between gradually changing pitches of the plurality of annular disks 10 of the laminar flow fan 100 and air volume and air pressure in fig. 16.
As shown in fig. 16 and 17, the connection member of the laminar flow fan 100 may also be a connection rod 60. The connecting rods 60 may also be provided in plurality, and penetrate through the driving disk 30 and the plurality of annular disks 10 at even intervals, so as to ensure that the connection relationship between the driving disk 30 and the plurality of annular disks 10 is stable, and further ensure that the driving disk 30 can stably drive the plurality of annular disks 10 to rotate when the laminar flow motor 20 drives the driving disk 30 to rotate, thereby improving the operational reliability of the laminar flow fan 100. As the distance between two adjacent annular disks 10 gradually increases from one side away from the driving disk 30 to the other side, the air volume of the laminar flow fan 100 can be effectively increased, so that the air outlet of the laminar flow fan 100 meets the use requirement of a user. In a preferred embodiment, the distance between two adjacent annular disks 10 has the same variation, that is, the distance between two adjacent annular disks 10 increases from one side away from the driving disk 30 to the other side.
In fig. 18, the abscissa axis damping uniform expansion Plate distance increment refers to the amount of change in the distance between two adjacent ring disks 10 in the direction from one side away from the driving disk 30 to the other side, the left ordinate axis Mass flow rate refers to the air volume, and the right ordinate axis Pressure refers to the air Pressure. Also, the variation amount of the pitch between two adjacent annular disks 10 is the same, that is, the increase or decrease of the pitch between two adjacent annular disks 10 is the same.
Specifically, fig. 18 is a schematic diagram illustrating the relationship between the gradual change of the pitch of the plurality of annular disks 10 and the air volume and the air pressure when the outer diameter, the inner diameter, the number, the thickness of the annular disks 10 of the laminar flow fan 100 and the rotation speed of the laminar flow motor 20 are all kept constant. As shown in fig. 18, when the above-mentioned parameters are all kept constant, the distance between every two adjacent ring disks 10 in the plurality of ring disks 10 gradually changes from one side far away from the driving disk 30 to the other side, which has a large influence on the air volume and a small influence on the air pressure. When the variation of the spacing between two adjacent annular disks 10 in the direction from the side away from the driving disk 30 to the other side, which is indicated by the axis of abscissa, is a positive number, it is described that the spacing between each two adjacent annular disks 10 in the plurality of annular disks 10 gradually increases from the side away from the driving disk 30 to the other side; when the amount of change in the pitch between two adjacent ring disks 10 in the direction from the side away from the driver disk 30 to the other side, which is indicated by the abscissa axis, is a negative number, it is described that the pitch between each two adjacent ring disks 10 in the plurality of ring disks 10 gradually decreases from the side away from the driver disk 30 to the other side.
As can be seen from fig. 18, when the pitch variation amounts between every two adjacent annular disk sheets 10 in the plurality of annular disk sheets 10 are-1 mm, 1 mm and 2 mm, the air volume and the air pressure of the laminar flow fan 100 are both greatly improved. The interval between every two adjacent ring disks 10 in the plurality of ring disks 10 is set to gradually increase from one side far from the driving disk 30 to the other side, considering the air volume and the air pressure of the laminar flow fan 100 together. In a preferred embodiment, the outer diameter of the annular disk 10 of the laminar flow fan 100 is 175 mm, the inner diameter of the annular disk 10 is 115 mm, the number of the annular disks 10 is 8, the thickness of the annular disk 10 is 2 mm, and the rotation speed of the laminar flow motor 20 is 1000rpm (revolutions per minute), and at this time, in comprehensive consideration of the air volume and the air pressure of the laminar flow fan 100, the distance between two adjacent annular disks 10 in the 8 annular disks 10 may be set sequentially from one side far away from the driving disk 30 to the other side: the distance between two adjacent annular disks 10 is gradually increased by 1 mm from one side far away from the drive disk 30 to the other side, namely, the distance between two adjacent annular disks 10 is 13.75 mm, 14.75 mm, 15.75 mm, 16.75 mm, 17.75 mm, 18.75 mm and 19.75 mm. It should be noted that, the distance between two adjacent annular disks 10 in the plurality of annular disks 10 gradually increases from the side away from the driving disk 30 to the other side, which actually means that the distance between two adjacent annular disks 10 gradually increases along the direction of the airflow flowing in the air inlet channel 11.
Fig. 19 is a partial sectional view of a laminar flow fan 100 having a gradual change in the inner diameter of a plurality of annular disks 10, and fig. 20 is a schematic diagram of the relationship between the gradual change in the inner diameter of the plurality of annular disks 10 and the air volume and the air pressure of the laminar flow fan 100 in fig. 19. As the inner diameters of the plurality of annular disks 10 gradually decrease from one side away from the driving disk 30 to the other side, the air volume of the laminar flow fan 100 can be effectively increased, so that the air outlet of the laminar flow fan 100 meets the use requirement of a user. In a preferred embodiment, the inner diameters of two adjacent annular disks 10 vary by the same amount, that is, the inner diameters of the annular disks 10 decrease from the side away from the driving disk 30 to the other side by the same amount.
In fig. 20, the abscissa axis damping uniform expansion Inner radius increment refers to the variation of the Inner diameter of each ring disc 10 and the Inner diameter of the ring disc 10 adjacent to the lower side, the left ordinate axis Massflow rate refers to the air volume, and the right ordinate axis Pressure rise refers to the air Pressure. Specifically, fig. 20 is a schematic diagram illustrating the relationship between the gradual change of the inner diameters of the plurality of annular disks 10 and the air volume and the air pressure when the outer diameter, the distance, the number, the thickness of the annular disks 10 of the laminar flow fan 100 and the rotation speed of the laminar flow motor 20 are all kept constant. As shown in fig. 20, when the above-mentioned parameters are all kept constant, the inner diameters of the plurality of annular disks 10 gradually change from one side away from the driving disk 30 to the other side, which has a large influence on the air volume and a small influence on the air pressure. When the variation of the inner diameter of each annular disk 10 represented by the abscissa axis and the inner diameter of the adjacent annular disk 10 below is a positive number, it means that the inner diameters of the plurality of annular disks 10 gradually increase from one side away from the driving disk 30 to the other side; when the change amount of the inner diameter of each ring disk 10 shown by the abscissa axis and the inner diameter of the ring disk 10 adjacent below is a negative number, it means that the inner diameters of the plurality of ring disks 10 gradually decrease from one side away from the driving disk 30 to the other side.
As can be seen from fig. 20, when the inner diameters of the plurality of annular disks 10 gradually decrease from one side away from the driving disk 30 to the other side, the air volume of the laminar flow fan 100 increases and the air pressure decreases slightly; when the inner diameters of the plurality of ring disks 10 gradually increase from one side away from the driving disk 30 to the other side, the wind pressure of the laminar flow fan 100 slightly increases and the wind volume greatly decreases. Thus, the inner diameters of the plurality of ring disks 10 are set to be gradually reduced from one side away from the driving disk 30 to the other side in consideration of the air volume and the air pressure of the laminar flow fan 100.
In a preferred embodiment, the outer diameter of the annular disk 10 of the laminar flow fan 100 is 175 mm, the pitch of the annular disks 10 is 13.75 mm, the number of the annular disks 10 is 8, the thickness of the annular disk 10 is 2 mm, and the rotation speed of the laminar flow motor 20 is 1000rpm (revolutions per minute), and at this time, the variation between the inner diameter of each annular disk 10 and the inner diameter of the adjacent annular disk 10 below may be set to be-5 mm in consideration of the air volume and the air pressure of the laminar flow fan 100. That is, the inner diameters of the 8 annular disks 10 from one side to the other side away from the driving disk 30 can be set as follows: the inner diameter of each annular disk 10 is reduced by 5mm from the inner diameter of the adjacent annular disk 10 below, by 115 mm, 110 mm, 105 mm, 100 mm, 95 mm, 90 mm, 85 mm, and 80 mm. It should be noted that the distance between the annular disks 10 in the above description specifically refers to the distance between two adjacent annular disks 10. It should be emphasized that the inner diameters of the plurality of annular disks 10 gradually decrease from one side away from the driving disk 30 to the other side, which means that the inner diameters of the plurality of annular disks 10 gradually decrease along the direction of the airflow flowing in the air inlet channel 11.
Fig. 21 is a schematic diagram of a central angle of a connecting line of an inner diameter and an outer diameter of a plurality of annular disks 10 of the laminar flow fan 100 in which the annular disks 10 are arc-shaped disks on the same longitudinal section passing through a central axis, and fig. 22 is a schematic diagram of a relationship between the central angle and air volume and air pressure in fig. 21. Each of the ring disks 10 of the laminar flow fan 100 of fig. 21 is an arc-shaped disk which gradually approaches the driving disk 30 from the center to the edge and protrudes toward one side of the driving disk 30. Compared with a plane disk, the arc disk can enable the angle of external air entering the laminar flow fan 100 to better accord with the flow of fluid, so that the external air can enter the laminar flow fan 100 more conveniently, and the air volume loss is effectively reduced. Further, the inner diameters of the plurality of annular disks 10 are gradually reduced from one side away from the driving disk 30 to the other side, and the inner and outer diameters of the plurality of annular disks 10 on the same longitudinal section passing through the central axis form a central angle θ.
In fig. 22, the abscissa axis θ indicates a central angle of a line connecting the inner and outer diameters of the plurality of annular disks 10 on the same vertical section passing through the central axis, the left ordinate axis Mass flow rate indicates an air volume, and the right ordinate axis Pressure means an air Pressure. Specifically, fig. 22 is a schematic diagram showing the relationship between the central angle θ and the air volume and the air pressure when the outer diameter, the number of layers, the pitch, the thickness of the annular disk 10 of the laminar fan 100 and the rotation speed of the laminar motor 20 are all kept constant. As shown in fig. 22, when the above-mentioned parameters are all kept constant, the air volume of the laminar flow fan 100 increases and then decreases as the central angle θ increases, and the air pressure slightly increases. In a preferred embodiment, the outer diameter of the annular disk 10 of the laminar flow fan 100 is 175 mm, the number of layers of the annular disk 10 is 10, the pitch of the annular disks 10 is 13.75 mm, the thickness of the annular disk 10 is 2 mm, and the rotation speed of the laminar flow motor 20 is 1000rpm (revolutions per minute), and in consideration of the air volume and the air pressure, the central angle θ of the inner and outer diameter connecting lines of the plurality of annular disks 10 on the same longitudinal section passing through the central axis may be set to be 9 ° to 30 °. As shown in fig. 22, when the central angle θ is set to 15 °, the air volume of the laminar flow fan 100 reaches the maximum value.
The indoor unit 300 of the floor air conditioner of the embodiment includes: a housing 310, which defines a cavity therein and is provided with an air inlet 330 and an air outlet 320; the evaporator 381 is arranged in the cavity corresponding to the air inlet 330 and configured to exchange heat with air entering the cavity through the air inlet 330; the laminar flow fan 110 is arranged in the cavity, and is configured to form laminar flow wind by utilizing a viscosity effect and blow the laminar flow wind out of the air outlet 320; and a double suction centrifugal fan 610 disposed inside the cavity and configured to send air heat-exchanged by the evaporator 381 toward the laminar flow fan 110. The indoor unit 300 of the vertical air conditioner is provided with the laminar flow fan 110, laminar flow air supply is realized through a viscous effect, the noise is low and the air quantity is high in the air supply process, and the use experience of a user is effectively improved; the double-suction centrifugal fan 610 is further arranged, so that the air quantity entering the laminar flow fan 110 can be effectively improved, and the working efficiency of the laminar flow fan 110 is further improved.
Further, the indoor unit 300 of the floor air conditioner of the present embodiment further includes: a scroll 520 having a first accommodation chamber 523 and a second accommodation chamber 524 defined therein, the first accommodation chamber 523 and the second accommodation chamber 524 being communicated through a communication passage 525; and the double suction centrifugal fan 610 is disposed in the first accommodating chamber 523, and the laminar flow fan 110 is disposed in the second accommodating chamber 524. The volute 520 has two inlets 522 and one outlet 521, and the outlet 521 is disposed opposite to the air outlet 320; the double-suction centrifugal fan 610 drives the air heat-exchanged by the evaporator 381 to enter the first accommodating cavity 523 from the two inlets 522, and after turning, the air enters the laminar flow fan 110 of the second accommodating cavity 524 through the communication channel 525, and the laminar flow air is discharged from the outlet 521 and blown out through the air outlet 320. The laminar flow fan 110, the double suction centrifugal fan 610 and the scroll 520 are provided in two numbers, and the housing 310 includes a front panel 311, a rear panel 315, a top plate 313 and a bottom plate 314, wherein the upper portion and the lower portion of the front panel 311 are provided with an air outlet 320, and the middle upper portion of the rear panel 315 is provided with an air inlet 330. The two sets of double suction centrifugal fans 610 and the laminar flow fan 110 at the upper part and the lower part can enable the air output and the air outlet comfort degree of the vertical air conditioner indoor unit 300 to meet the requirements of users.
Further, in the floor air conditioner 300 of the present embodiment, the plurality of annular disks 10 of the laminar flow fan 100 may be arranged according to one or more of the following structures: the inner diameter of the plurality of annular disks 10 is gradually reduced from one side far away from the driving disk 30 to the other side; the distance between two adjacent annular disks 10 in the plurality of annular disks 10 gradually increases from one side far away from the driving disk 30 to the other side; each of the annular disks 10 is an arc-shaped disk which gradually approaches the driving disk 30 from the center to the edge and protrudes toward one side of the driving disk 30. The above-mentioned form of setting up a plurality of annular disks 10 all can effectively promote laminar flow fan 100's amount of wind for laminar flow fan 100's air-out satisfies user's user demand. In addition, the connecting piece may be a connecting piece 40, and the cross section of the connecting piece 40 has two curves sequentially arranged along the rotation direction of the annular disk 10, and the chord length of the two curves is in a linear relation with the air quantity generated by the laminar flow fan 100. The connecting sheet 40 is arranged to effectively increase the wind pressure of the laminar flow fan 100, so that after laminar flow wind blows out through the gaps among the plurality of annular disks 10, the air outside the laminar flow fan 100 is pressed into the annular disks 10 through the air inlet channel 11 due to the action of pressure difference, and the circulation is repeated, thereby forming laminar air circulation. The plurality of air outlets 12 formed by the gaps between the plurality of annular disks 10 can enable the laminar flow fan 100 to realize 360-degree air supply, avoid various uncomfortable symptoms caused by direct blowing of air supply by the air conditioner, and further improve the use experience of users.
It should be understood by those skilled in the art that, without specific description, terms used in the embodiments of the present invention to indicate orientation or positional relationship such as "up", "down", "left", "right", "front", "back", and the like are used with reference to the actual usage state of the floor air conditioner indoor unit 300, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the device or component to which the present invention is directed must have a specific orientation, and therefore, should not be construed as limiting the present invention.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An indoor unit of a floor type air conditioner, comprising:
the air conditioner comprises a shell, a fan and a fan, wherein a cavity is defined in the shell, and an air inlet and an air outlet are formed in the shell;
the evaporator is arranged in the cavity corresponding to the air inlet and is configured to exchange heat for air entering the cavity through the air inlet;
the laminar flow fan is arranged in the cavity and is configured to form laminar flow wind by utilizing a viscosity effect and blow the laminar flow wind out of the air outlet; and
and the double-suction centrifugal fan is arranged in the cavity and is configured to send the air subjected to heat exchange of the evaporator to the laminar flow fan.
2. An indoor unit for a floor air conditioner according to claim 1, further comprising:
a volute casing, wherein a first accommodating cavity and a second accommodating cavity are defined in the volute casing, and the first accommodating cavity and the second accommodating cavity are communicated through a communication channel; and is
The double suction centrifugal fan is arranged in the first accommodating cavity, and the laminar flow fan is arranged in the second accommodating cavity.
3. An indoor unit of a floor air conditioner according to claim 2,
the volute is provided with two inlets and one outlet, and the outlet is opposite to the air outlet;
the double-suction centrifugal fan drives air subjected to heat exchange of the evaporator to enter the first containing cavity from the two inlets, and the air after being turned to the direction enters the laminar flow fan of the second containing cavity through the communicating channel to form laminar flow air which is discharged from the outlet and blown out through the air outlet.
4. An indoor unit of a floor air conditioner according to claim 2,
the laminar flow fan, the double-suction centrifugal fan and the volute are provided with two fans, and
the shell comprises a front panel, a rear panel, a top plate and a bottom plate, wherein the upper portion and the lower portion of the front panel are provided with the air outlet, and the upper middle portion of the rear panel is provided with the air inlet.
5. An indoor unit for a floor air conditioner according to claim 1, wherein the laminar flow fan comprises:
laminar flow fan, comprising: the annular disks are arranged in parallel at intervals and have the same central axis, an air inlet channel is formed at the center of each annular disk, and air in the cavity enters gaps among the annular disks through the air inlet channel; and
and the laminar flow motor is connected with the laminar flow fan and is configured to drive the plurality of annular discs to rotate, so that an air boundary layer close to the surfaces of the plurality of annular discs moves in a rotating mode from inside to outside, and laminar flow wind is formed and blown out from the air outlet.
6. An indoor unit of a floor air conditioner according to claim 5,
the laminar flow fan further includes: the driving discs are arranged on one side of the annular discs at intervals in parallel; and a connecting member penetrating the drive disk and the plurality of annular disks to connect the plurality of annular disks to the drive disk,
the laminar flow motor is further configured to: the driving disc is directly driven to rotate, and the driving disc drives the annular discs to rotate.
7. An indoor unit of a floor air conditioner according to claim 6,
a groove is formed in the center of the driving disk towards the plurality of annular disks, the laminar flow motor is fixedly arranged in the groove, and a cylindrical protruding part is arranged on one side of the driving disk towards the plurality of annular disks so as to guide the air flow entering the laminar flow fan and assist in forming laminar flow air; or
The surface of the drive disk facing the laminar flow motor is a plane, and the surface of the drive disk facing the plurality of annular disks has a conical projection to guide the air flow entering the laminar flow fan and assist in forming laminar flow wind.
8. An indoor unit of a floor air conditioner according to claim 6,
the connecting piece is a connecting piece, the cross section of the connecting piece is provided with two sections of curves which are sequentially arranged along the rotating direction of the annular disc, and the chord length of the two sections of curves and the air volume generated by the laminar flow fan are in a linear relation.
9. An indoor unit of a floor air conditioner according to claim 8,
the cross section of the connecting piece is provided with double arcs which are sequentially arranged along the rotating direction of the annular disc: the inner arc and the back arc are both convex towards the rotating direction of the annular disc, and have the same circle center and are arranged in parallel or have different circle centers and are intersected at two ends.
10. An indoor unit of an air conditioner according to claim 6, wherein the plurality of ring-shaped discs are arranged according to one or more of the following structures:
the inner diameters of the annular discs are gradually reduced from one side far away from the driving disc to the other side;
the distance between two adjacent annular disks in the plurality of annular disks is gradually increased from one side far away from the driving disk to the other side;
each annular disc is an arc disc which is gradually close to the driving disc from the center to the edge and protrudes towards one side of the driving disc.
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|---|---|---|---|
| CN201920079741.1U CN210014459U (en) | 2019-01-17 | 2019-01-17 | Indoor machine of floor air conditioner |
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| CN201920079741.1U CN210014459U (en) | 2019-01-17 | 2019-01-17 | Indoor machine of floor air conditioner |
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| CN210014459U true CN210014459U (en) | 2020-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306105A (en) * | 2020-03-31 | 2020-06-19 | 佛山市云米电器科技有限公司 | Air outlet array mechanism and air outlet equipment applying same |
| WO2020147787A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛海尔空调器有限总公司 | Indoor unit of floor-standing air conditioner |
| WO2020147786A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛海尔空调器有限总公司 | Indoor unit of vertical air conditioner |
-
2019
- 2019-01-17 CN CN201920079741.1U patent/CN210014459U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147787A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛海尔空调器有限总公司 | Indoor unit of floor-standing air conditioner |
| WO2020147786A1 (en) * | 2019-01-17 | 2020-07-23 | 青岛海尔空调器有限总公司 | Indoor unit of vertical air conditioner |
| CN111306105A (en) * | 2020-03-31 | 2020-06-19 | 佛山市云米电器科技有限公司 | Air outlet array mechanism and air outlet equipment applying same |
| CN111306105B (en) * | 2020-03-31 | 2022-03-25 | 佛山市云米电器科技有限公司 | Air outlet array mechanism and air outlet equipment applying same |
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