CN209877122U - Indoor machine of floor air conditioner - Google Patents

Indoor machine of floor air conditioner Download PDF

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Publication number
CN209877122U
CN209877122U CN201920079744.5U CN201920079744U CN209877122U CN 209877122 U CN209877122 U CN 209877122U CN 201920079744 U CN201920079744 U CN 201920079744U CN 209877122 U CN209877122 U CN 209877122U
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China
Prior art keywords
air
laminar flow
annular
air conditioner
indoor unit
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CN201920079744.5U
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Chinese (zh)
Inventor
李英舒
王晓刚
张蕾
李婧
王永涛
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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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, an air outlet is formed in the upper part of the shell, and an air inlet is formed in the middle lower part of the shell; laminar flow fan sets up inside the cavity that corresponds the air outlet, and it includes: 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 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. The utility model discloses a floor air conditioner indoor unit is provided with the laminar flow fan, realizes the laminar flow air supply through the viscidity effect, and air supply process noise is little, the amount of wind is high, effectively promotes user's use and experiences.

Description

Indoor machine of floor air conditioner
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, fans used in indoor units of air conditioners are mainly centrifugal fans and cross-flow fans. However, the centrifugal fan and the cross flow fan have the following problems: the centrifugal fan needs dozens of large-volume blades to improve the air pressure and the air volume, so that the centrifugal fan has high noise, and when the centrifugal fan is used for an indoor unit of a vertical air conditioner, air needs to be bent in two directions of 90 degrees from entering the centrifugal fan to being sent out of the air conditioner, and the air loss is caused in each direction; although the noise of the cross flow fan is low, 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 indoor unit realize 360 air supplies, avoids the air-out direct-blowing user, promotes user's use and experiences.
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, an air outlet is formed in the upper part of the shell, and an air inlet is formed in the middle lower part of the shell; laminar flow fan sets up inside the cavity that corresponds the air outlet, and it includes: 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 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, the indoor unit of the floor air conditioner further comprises: the fixing plate is provided with a plurality of reinforcing ribs on one side and a plurality of clamping grooves on the other side; and the fixing frame is provided with a plurality of clamping jaws corresponding to the clamping grooves on one side facing the fixing plate, so that the laminar flow motor is fixed between the fixing frame and the fixing plate after the clamping jaws are respectively screwed with the clamping grooves, a through hole is formed in the center of the fixing frame, and an output shaft of the laminar flow motor penetrates through the through hole and then is fixed with the driving disc.
Optionally, the indoor unit of the floor air conditioner further comprises: and the air guide ring is arranged on one side of the plurality of annular discs far away from the driving disc and is configured to guide air entering the cavity through the air inlet into the air inlet channel.
Optionally, the housing is provided with an air outlet at an upper portion thereof around the laminar flow fan.
Optionally, the indoor unit of the floor air conditioner further comprises: the wind shielding piece is arranged outside the laminar flow fan and provided with a notch; the upper part of the shell is provided with an air outlet corresponding to the notch.
Optionally, the center of the driving disk is formed with a groove toward the plurality of annular disks, and the laminar flow motor is fixedly disposed in the groove.
Optionally, the surface of the drive disk facing the laminar flow motor is planar and the surface facing the plurality of annular disks has a conically shaped projection to direct the flow of air entering the laminar flow fan and assist in creating 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, an air outlet is formed in the upper part of the shell, and an air inlet is formed in the middle lower part of the shell; laminar flow fan sets up inside the cavity that corresponds the air outlet, and it includes: 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 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. 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 in the air supply process is low, the air volume is high, and the use experience of a user is effectively improved.
Further, the utility model discloses a floor air conditioner indoor unit, laminar flow fan still includes: 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 then the driving disc drives the plurality of annular discs to rotate. The laminar flow motor is fixed between the fixing frame and the fixing plate, a through hole is formed in the center of the fixing frame, and an output shaft of the laminar flow motor penetrates through the through hole and then is fixed with the driving disc. The connection firmness of the laminar flow fan and the laminar flow motor can be effectively enhanced, and the overall working reliability is improved.
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 diagram of a prior art centrifugal fan used in an indoor unit of a floor air conditioner;
fig. 2 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to a first embodiment of the present invention;
fig. 3 is a partial schematic view of the indoor unit of the neutral air conditioner of fig. 2;
fig. 4 is an exploded view of the components of the indoor unit of the neutral air conditioner of fig. 2;
fig. 5 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to a second embodiment of the present invention;
fig. 6 is a partial schematic view of the indoor unit of the floor standing type air conditioner of fig. 5;
fig. 7 is an exploded view of the components of the indoor unit of the neutral air conditioner of fig. 5;
fig. 8 is a schematic view of the overall structure of a floor air conditioner indoor unit according to a third embodiment of the present invention;
fig. 9 is a partial schematic view of the indoor unit of the floor standing type air conditioner of fig. 8;
fig. 10 is an exploded view of the components of the indoor unit of the neutral air conditioner of fig. 8;
fig. 11 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to a fourth embodiment of the present invention;
fig. 12 is a partial schematic view of the indoor unit of the floor standing air conditioner of fig. 11;
figure 13 is an exploded view of the components of the indoor unit of the neutral air conditioner of figure 11;
fig. 14 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to a fifth embodiment of the present invention;
fig. 15 is a partial schematic view of the indoor unit of the floor standing air conditioner of fig. 14;
figure 16 is an exploded schematic view of the components of the indoor unit of the neutral air conditioner of figure 14;
fig. 17 is a schematic view of the overall structure of an indoor unit of a floor air conditioner according to a sixth embodiment of the present invention;
fig. 18 is a partial schematic view of the indoor unit of the floor standing type air conditioner of fig. 17;
figure 19 is an exploded schematic view of the components of the indoor unit of the neutral air conditioner of figure 17;
fig. 20 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. 21 is a schematic view illustrating the principle of laminar flow fan in the indoor unit of a floor air conditioner according to an embodiment of the present invention;
fig. 22 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. 23 is a schematic view of a laminar flow fan with a drive disk having grooves;
FIG. 24 is a schematic view of the laminar flow fan of FIG. 23 from another perspective;
FIG. 25 is a schematic view of the laminar flow fan of FIG. 23 from a further perspective;
FIG. 26 is a cross-sectional view of the laminar flow fan of FIG. 23;
FIG. 27 is a schematic view of the laminar flow fan of FIG. 23 coupled to a laminar flow motor;
fig. 28 is an exploded view of the components of the laminar flow motor, the stationary plate and the stationary bracket;
FIG. 29 is a schematic view of the connection of a laminar flow fan having a drive disk with a conical projection to a laminar flow motor;
FIG. 30 is a schematic view of the laminar flow fan of FIG. 29 from another perspective;
FIG. 31 is a cross-sectional schematic view of the laminar flow fan of FIG. 29;
FIG. 32 is a schematic view showing the relationship between the length of the string line of the connecting piece of FIG. 31 and the wind quantity and pressure;
FIG. 33 is a schematic view showing the relationship between the installation angle of the connecting piece of FIG. 31 and the air volume and the air pressure;
FIG. 34 is a cross-sectional schematic view of a laminar flow fan having aero blades;
FIG. 35 is a schematic view of the aero blade installation angle of the laminar flow fan of FIG. 34 in relation to air flow and wind pressure;
FIG. 36 is a schematic view of a laminar flow fan with gradually changing spacing between a plurality of annular disks and a laminar flow motor;
FIG. 37 is a schematic view of the laminar flow fan of FIG. 36 coupled to a laminar flow motor from another perspective;
FIG. 38 is a schematic view of the gradual change in the pitch of a plurality of annular disks of the laminar flow fan of FIG. 36 in relation to air flow and air pressure;
FIG. 39 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. 40 is a schematic diagram of the inner diameter gradient of the multiple annular disks of the laminar flow fan of FIG. 39 as a function of air flow and air pressure;
FIG. 41 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. 42 is a schematic diagram showing the relationship between the central angle and the air volume and the wind pressure in fig. 41.
Detailed Description
Fig. 1 is a schematic diagram of an indoor unit of a floor air conditioner using a centrifugal fan in the prior art. Two arrows in fig. 1 show the air flowing direction of the centrifugal fan 200 during the air supply process when the centrifugal fan is applied to the indoor unit of the floor air conditioner, and the centrifugal fan 200 in the prior art needs to make two 90-degree turns from the air inlet to the air outlet during the whole process when the centrifugal fan is applied to the indoor unit of the floor air conditioner, and each turn is accompanied by a large air loss. In addition, the centrifugal fan 200 generally requires several tens of large-sized blades to increase wind pressure and wind volume, and the blades rotate to rub or impact air when the centrifugal fan 200 operates. Since the centrifugal fan 200 has wide blades and a large thickness, a very large noise is generated when the motor of the centrifugal fan 200 is operated at a high speed. In addition, a cross-flow fan is commonly used in the prior art, but although the noise of the cross-flow fan is low, 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. The embodiment provides a floor air conditioner indoor unit, is provided with the laminar flow fan, realizes the laminar flow air supply through the viscidity effect, and air supply process noise is little, the wind gauge height, the wind pressure is big, effectively promotes user's use and experiences.
Fig. 2 is a schematic diagram illustrating an overall structure of a floor type air conditioner indoor unit 300 according to a first embodiment of the present invention, fig. 3 is a schematic diagram illustrating a partial structure of the floor type air conditioner indoor unit 300 in fig. 2, and fig. 4 is an exploded schematic diagram illustrating components of the floor type air conditioner indoor unit 300 in fig. 2. Fig. 5 is a schematic diagram of an overall structure of a floor air conditioner indoor unit 300 according to a second embodiment of the present invention, fig. 6 is a schematic diagram of a partial structure of the floor air conditioner indoor unit 300 in fig. 5, and fig. 7 is an exploded schematic diagram of components of the floor air conditioner indoor unit 300 in fig. 5. Fig. 8 is a schematic diagram illustrating an overall structure of a floor type air conditioner indoor unit 300 according to a third embodiment of the present invention, fig. 9 is a schematic diagram illustrating a partial structure of the floor type air conditioner indoor unit 300 in fig. 8, and fig. 10 is a schematic diagram illustrating an exploded view of components of the floor type air conditioner indoor unit 300 in fig. 8. Fig. 11 is a schematic view of an overall structure of a vertical air conditioner indoor unit 300 according to a fourth embodiment of the present invention, fig. 12 is a schematic view of a partial structure of the vertical air conditioner indoor unit 300 in fig. 11, and fig. 13 is an exploded schematic view of components of the vertical air conditioner indoor unit 300 in fig. 11. Fig. 14 is a schematic view of an overall structure of a vertical air conditioner indoor unit 300 according to a fifth embodiment of the present invention, fig. 15 is a schematic view of a partial structure of the vertical air conditioner indoor unit 300 in fig. 14, and fig. 16 is an exploded schematic view of components of the vertical air conditioner indoor unit 300 in fig. 14. Fig. 17 is a schematic diagram of an overall structure of a vertical air conditioner 300 according to an embodiment of the present invention, fig. 18 is a schematic diagram of a partial structure of the vertical air conditioner 300 in fig. 17, fig. 19 is a schematic diagram of an explosion of components of the vertical air conditioner 300 in fig. 17, fig. 20 is a schematic diagram of an air circulation of the flow fan 100 in the vertical air conditioner 300 according to an embodiment of the present invention, fig. 21 is a schematic diagram of an air supply principle of the flow fan 100 in the vertical air conditioner 300 according to an embodiment of the present invention, and fig. 22 is a schematic diagram of a speed distribution and a force distribution diagram of the flow fan 100 in the vertical air conditioner 300 according to an embodiment of the present invention. Fig. 23 is a structural view of a laminar flow fan 100 having grooves 32 in a driving disk 30, fig. 24 is a structural view of the laminar flow fan 100 in fig. 23 from another view, fig. 25 is a structural view of the laminar flow fan 100 in fig. 23 from another view, and fig. 26 is a sectional view of the laminar flow fan 100 in fig. 23. As shown in fig. 2 to 20, the floor air conditioner indoor unit 300 may generally include: a housing 310, a laminar flow fan 100, and a laminar flow motor 20.
Wherein, the inside of the casing 310 defines a cavity, and the upper portion of the casing 310 is provided with an air outlet 320, and the middle lower portion is provided with an air inlet 330. Laminar flow fan 100, set up inside the cavity that corresponds air outlet 320, it 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 configured to drive the plurality of annular disks to rotate, so that the air boundary layer 13 close to the surfaces of the plurality of annular disks rotationally moves from inside to outside, and laminar flow wind is formed and blown out 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 set according to actual conditions, and can realize four-side air supply, three-side air supply, two-side air supply or single-side air supply respectively.
The indoor unit 300 of the floor air conditioner may further include an evaporator disposed inside the cavity corresponding to the air inlet 330 and configured to exchange heat with air entering the cavity through the air inlet 330. The evaporator may be disposed below the laminar flow fan 100, and specifically, may be a U-type evaporator 381, a flat-plate evaporator 382, a V-type evaporator, or the like. In addition, a water pan 390 may be disposed below the evaporator to receive the condensed water generated from the evaporator. The housing 310 may include: a front panel 311, a rear case 312, a top panel 313 and a bottom panel 314, wherein the rear case 312 comprises a rear panel 315 and two side panels 316. 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. 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. The indoor unit 300 of the floor air conditioner may further include a wind guide 360 configured to guide air entering the cavity through the wind inlet 330 into the air intake passage 11. Specifically, the induced air ring 360 may be disposed between the evaporator and the laminar flow fan 100, the air entering the cavity through the air inlet 330 first exchanges heat through the evaporator, and the air after heat exchange is guided to enter the air inlet channel 11 of the laminar flow fan 100 through the induced air ring 360.
As shown in fig. 20, 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. 23, 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.
Several embodiments of the indoor unit 300 of the floor air conditioner are described below:
the first embodiment is as follows: as shown in fig. 2 to 4, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a U-shaped evaporator 381, the U-shaped evaporator 381 is vertically placed in the cavity and has a U-shaped cross section, and the U-shaped opening faces the front panel 311. The air inlet 330 is disposed on the rear panel 315 and two side panels 316 of the rear casing 312, i.e. three-sided air inlet. That is, the U-shaped evaporator 381 is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the U-shaped evaporator 381. A clapboard 383 is arranged in front of the U-shaped evaporator 381, so that the air after heat exchange can be prevented from flowing to the front part of the cavity, and the clapboard 383 is in a flat plate shape in the embodiment. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The casing 310 of the indoor unit 300 of the floor air conditioner of the present embodiment is provided with an air outlet 320 at an upper portion thereof around the laminar flow fan 100. Specifically, the front panel 311, the rear panel 315 and the two side panels 316 of the indoor unit 300 of the floor air conditioner of the present embodiment are respectively provided with an air outlet 320, and laminar air formed by the laminar flow fan 100 is blown out from the air outlet 320, so that 360 ° air supply can be realized.
Example two: as shown in fig. 5 to 7, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a U-shaped evaporator 381, the U-shaped evaporator 381 is vertically placed in the cavity and has a U-shaped cross section, and the U-shaped opening faces the front panel 311. The air inlet 330 is disposed on the rear panel 315 and two side panels 316 of the rear casing 312, i.e. three-sided air inlet. That is, the U-shaped evaporator 381 is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the U-shaped evaporator 381. A clapboard 383 is arranged in front of the U-shaped evaporator 381, so that the air after heat exchange can be prevented from flowing to the front part of the cavity, and the clapboard 383 is in a flat plate shape in the embodiment. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The indoor unit 300 of the floor air conditioner of the present embodiment further includes: a wind shielding member disposed outside the laminar flow fan 100 and having a notch 373; the housing 310 is provided with an air outlet 320 at a position corresponding to the notch 373 at the upper portion thereof. The wind shielding member of the indoor unit 300 of the floor air conditioner of this embodiment may be a wind shielding plate 371, and the area around the laminar flow fan 100 that is not shielded by the wind shielding plate 371 is the gap 373. Specifically, the front panel 311 and the two side panels 316 of the rear casing 312 of the indoor unit 300 of the floor air conditioner of the present embodiment are provided with the air outlets 320, and the laminar air formed by the laminar flow fan 100 is blown out from the air outlets 320, so that three-sided air supply can be realized.
Example three: as shown in fig. 8 to 10, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a flat panel evaporator 382, and the flat panel evaporator 382 is vertically placed inside the cavity and is parallel to the front panel 311. The air inlet 330 is disposed on the rear panel 315 of the rear casing 312, i.e., a single side of the air inlet. That is, the flat plate evaporator 382 is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the flat plate evaporator 382. The front of the flat plate evaporator 382 is further provided with a partition 383, which can prevent the air after heat exchange from flowing to the front of the cavity, the partition 383 of the embodiment is U-shaped, and the opening of the U-shaped is toward the flat plate evaporator 382. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The indoor unit 300 of the floor air conditioner of the present embodiment further includes: a wind shielding member disposed outside the laminar flow fan 100 and having a notch 373; the housing 310 is provided with an air outlet 320 at a position corresponding to the notch 373 at the upper portion thereof. The wind shielding member of the indoor unit 300 of the floor air conditioner of this embodiment may be a wind shielding plate 371, and the area around the laminar flow fan 100 that is not shielded by the wind shielding plate 371 is the gap 373. Specifically, the front panel 311 and the two side panels 316 of the rear casing 312 of the indoor unit 300 of the floor air conditioner of the present embodiment are provided with the air outlets 320, and the laminar air formed by the laminar flow fan 100 is blown out from the air outlets 320, so that three-sided air supply can be realized.
Example four: as shown in fig. 11 to 13, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a flat panel evaporator 382, and the flat panel evaporator 382 is vertically placed inside the cavity and is parallel to the front panel 311. The air inlet 330 is disposed on the rear panel 315 of the rear casing 312, i.e., a single side of the air inlet. That is, the flat plate evaporator 382 is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the flat plate evaporator 382. The front of the flat plate evaporator 382 is further provided with a partition 383, which can prevent the air after heat exchange from flowing to the front of the cavity, the partition 383 of the embodiment is U-shaped, and the opening of the U-shaped is toward the flat plate evaporator 382. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The indoor unit 300 of the floor air conditioner of the present embodiment further includes: a wind shielding member disposed outside the laminar flow fan 100 and having a notch 373; the housing 310 is provided with an air outlet 320 at a position corresponding to the notch 373 at the upper portion thereof. The wind shielding member of the indoor unit 300 of the floor air conditioner of this embodiment may be a wind shielding case 372, and an area around the laminar flow fan 100 that is not shielded by the wind shielding case 372 is a gap 373. Specifically, the front panel 311 of the indoor unit 300 of the floor air conditioner of the present embodiment is provided with the air outlet 320, and the laminar air formed by the laminar flow fan 100 is blown out from the air outlet 320, so that single-sided air supply can be realized.
Example five: as shown in fig. 14 to 16, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a V-shaped evaporator, which is actually two flat plate evaporators 382 gradually separated from the housing 310 from top to bottom in the cavity, and the overall longitudinal section is substantially V-shaped. The air inlet 330 is disposed on two side panels 316 of the rear housing 312, that is, two sides of the rear housing are used for air inlet. That is, the V-shaped evaporator is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the V-shaped evaporator. The V-shaped evaporator is also provided with partitions 383 at the front and the rear to prevent the air after heat exchange from flowing to the front and the rear of the cavity, and the partitions 383 are flat in the embodiment. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The casing 310 of the indoor unit 300 of the floor air conditioner of the present embodiment is provided with an air outlet 320 at an upper portion thereof around the laminar flow fan 100. Specifically, the front panel 311, the rear panel 315 and the two side panels 316 of the indoor unit 300 of the floor air conditioner of the present embodiment are respectively provided with an air outlet 320, and laminar air formed by the laminar flow fan 100 is blown out from the air outlet 320, so that 360 ° air supply can be realized.
Example six: as shown in fig. 17 to 19, the indoor unit 300 of the floor air conditioner of the present embodiment is provided with a V-shaped evaporator, which is actually two flat plate evaporators 382 gradually separated from the housing 310 from top to bottom in the cavity, and the overall longitudinal section is substantially V-shaped. The air inlet 330 is disposed on two side panels 316 of the rear housing 312, that is, two sides of the rear housing are used for air inlet. That is, the V-shaped evaporator is disposed corresponding to the air inlet 330, and air entering the cavity from the air inlet 330 can exchange heat through the V-shaped evaporator. The V-shaped evaporator is also provided with partitions 383 at the front and the rear to prevent the air after heat exchange from flowing to the front and the rear of the cavity, and the partitions 383 are flat in the embodiment. The air after heat exchange enters the air inlet channel 11 of the laminar flow fan 100 through the guiding action of the air guiding ring 360, and further enters between a plurality of annular disks of the laminar flow fan 100. The indoor unit 300 of the floor air conditioner of the present embodiment further includes: a wind shielding member disposed outside the laminar flow fan 100 and having a notch 373; the housing 310 is provided with an air outlet 320 at a position corresponding to the notch 373 at the upper portion thereof. The wind shielding member of the indoor unit 300 of the floor air conditioner of this embodiment may be a wind shielding plate 371, and the area around the laminar flow fan 100 that is not shielded by the wind shielding plate 371 is the gap 373. Specifically, the front panel 311 and the two side panels 316 of the rear casing 312 of the indoor unit 300 of the floor air conditioner of the present embodiment are provided with the air outlets 320, and the laminar air formed by the laminar flow fan 100 is blown out from the air outlets 320, so that three-sided air supply can be realized.
The wind shielding member in the above embodiment, whether the wind shielding plate 371 or the wind shielding case 372, the notch 373 is disposed corresponding to the wind outlet 320. For example, the wind shielding plates 371 can discharge laminar air formed by the laminar flow fan 100 on three sides, and three air outlets 320 are correspondingly arranged; the wind blocking case 372 may discharge the laminar wind formed by the laminar fan 100 on a single side, and one wind outlet 320 is correspondingly disposed. The wind shielding member can ensure that laminar flow wind formed by the laminar flow fan 100 can not blow to other places in the cavity except blowing out through the air outlet 320, and the influence on the normal work of other components in the cavity is avoided.
As shown in fig. 20, the centers of the plurality of annular disks 10 are collectively formed with an air inlet passage 11 to allow 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. 22 is a schematic diagram showing the distribution τ (y) of the viscous shear force and the velocity distribution u (y) of the boundary layer 13. 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. 22 refers to the distance in the moving direction of the air boundary layer 13, and the axis of ordinate refers to the height of the air boundary layer 13 in the direction perpendicular to the moving 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. 23 to 26 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. Fig. 27 is a schematic view showing the connection between the laminar flow fan 100 and the laminar flow motor 20 in fig. 23, and fig. 28 is a schematic view showing the laminar flow motor 20, the fixing plate 340, and the fixing frame 350 exploded. As shown in fig. 27 and 28, the indoor unit 300 of the floor air conditioner may further include: a fixing plate 340 and a fixing frame 350. Wherein, one side of the fixing plate 340 is provided with a plurality of reinforcing ribs 341, and the other side is provided with a plurality of clamping grooves 342. The reinforcing ribs 341 can effectively improve the firmness of the fixing plate 340. The fixing frame 350 is provided with a plurality of clamping jaws 351 corresponding to the plurality of clamping slots 342 on one side facing the fixing plate 340, so that the laminar flow motor 20 is fixed between the fixing frame 350 and the fixing plate 340 after the plurality of clamping jaws 351 are respectively screwed in the plurality of clamping slots 342, wherein a through hole 352 is formed in the center of the fixing frame 350, and the output shaft 21 of the laminar flow motor 20 passes through the through hole 352 and then is fixed with the driving disc 30. With the laminar flow fan 100 shown in fig. 23 to 26, since the center of the driving disk 30 is formed with the groove 32 toward the plurality of annular disks 10, the output shaft 21 of the laminar flow motor 20 is fixedly disposed in the groove 32 of the driving disk 30 after passing through the penetration hole 352.
Fig. 29 is a schematic view of the connection between the laminar flow fan 100 having the circular disk 30 with the conical protrusion 31 and the laminar flow motor 20, fig. 30 is a schematic view of the laminar flow fan 100 from another view angle in fig. 29, and fig. 31 is a schematic view of the cross section of the laminar flow fan 100 in fig. 29. The surface of the driving disk 30 of the laminar flow fan 100 in fig. 29 to 31 facing the laminar flow motor 20 is a flat surface, 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. With the laminar flow fan shown in fig. 29 to 31, since the surface of the drive disk 30 facing the laminar flow motor 20 is a plane, the output shaft 21 of the laminar flow motor 20 is fixedly disposed on the plane side of the drive disk 30 after passing through the through hole 352. In the laminar flow fan 100 shown in fig. 29 to 31, the surface of the driving disk 30 facing the plurality of annular disks 10 has the conical protrusions 31, so that the air entering the laminar flow fan 100 through the air inlet channel 11 can be effectively guided into the gaps between the annular disks 10, and the efficiency of forming laminar flow air is improved.
In a preferred embodiment, 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 length of the two curves is in a linear relation 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. 31, 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. 31 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. 31.
Fig. 32 is a schematic diagram showing the relationship between the length of the chord line 51 of the connecting sheet 40 in fig. 31 and the air volume and the air pressure. Since the connecting piece 40 of the laminar fan 100 in fig. 31 is a double-arc blade 401, the distance between the two ends of the inner arc 41 and the distance between the two ends of the back arc 42 are the same, 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. 32, 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. 32 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: 40 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 line 51 is set to 42 mm, so that the distances 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 are about 9 mm, respectively, and the stability of the laminar flow fan 100 is ensuredOn the premise, the length of the chord line 51 is 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.
Fig. 33 is a schematic view showing the relationship between the installation angle α of the connecting piece 40 in fig. 31 and the air volume and the air pressure. Since the connection piece 40 of the laminar flow fan 100 in fig. 31 may be a double-arc blade 401, the installation angle α of the connection piece 40 actually means: on the same cross section of the bi-arc blade 401 and the annular disc 10, a chord line 51 between the two ends of the inner arc 41 forms an angle with the outer diameter 52 of the annular disc 10 passing through the midpoint of the chord line 51. The axis of abscissa, Metal angle (α), in fig. 33, refers to the installation angle of the bi-arc blade 401 of the laminar fan 100, i.e., the included angle formed by the chord line 51 between the two ends of the inner arc 41 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 bi-arc blade 401 and the annular disk 10. The left ordinate axis Mass flow rate refers to the air volume, and the right ordinate axis Pressure refers to the air Pressure. Specifically, fig. 33 is a schematic diagram illustrating the relationship between the installation angle α and the air volume and the air pressure when the outer diameter, the inner diameter, the number of layers, the pitch, the thickness, the chord length of the bi-arc blade 401, 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 chord length of the double-arc blade 401 of the present embodiment may be the straight distance between both end points of the inner arc 41 or the back arc 42.
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-circular-arc blade 401 is 35 mm, and the rotation speed of the laminar flow motor 20 is 1000rpm, at which the mounting angle α of the double-circular-arc blade 401 may be set to-5 ° to 55 ° in consideration of the wind pressure and the total wind pressure. In addition, when a 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 are sequentially arranged along the rotation direction of the annular disk 10, the installation angle alpha is a positive number; the installation angle α is a negative number when the outer diameter 52 of the annular disk 10 passes through the midpoint of the chord line 51 and the chord line 51 between the two end points of the inner arc 41 in this order in the direction in which the annular disk 10 rotates.
Fig. 34 is a schematic cross-sectional view of a laminar flow fan 100 having an aero blade 402, and fig. 35 is a schematic cross-sectional view of an installation angle α of the aero blade 402 of the laminar flow fan 100 of fig. 34 with respect to an air volume and an air pressure. In a particular embodiment, the connecting piece 40 may also be an aerospace blade 402. The cross section of the aviation blade 402 has a double arc protruding towards the direction of rotation of the annular disk 10, and the double arc includes an inner arc 41 and a back arc 42 sequentially arranged along the direction of rotation of the annular disk 10, the inner arc 41 and the back arc 42 have different circle centers, and both ends are intersected. Fig. 34 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. 34.
The mounting angle α of the aviation blade 402 in fig. 35 actually refers to: on the same cross section of the aero blade 402 and the annular disc 10, a chord line 51 between the ends of the inner or back arcs 41, 42 forms an angle with the outer diameter 52 of the annular disc 10 passing through the midpoint of the chord line 51. The axis of abscissa, Metal angle (α), in fig. 35, refers to the installation angle of the aircraft blade 402 of the laminar fan 100, i.e., the included 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 volume, and the right ordinate axis Pressure refers to the air Pressure. Specifically, fig. 35 is a schematic diagram illustrating the relationship between the installation angle α and the air volume and the air pressure when the outer diameter, the inner diameter, the number of layers, the distance, the thickness, the chord length of the aviation blade 402, 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 chord length of the aero blade 402 of this embodiment may be the linear distance between the two ends of the inner or back arcs 41, 42, i.e., the length of the chord line 51.
In the case where 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 motor 20 is 1000rpm, at which time the installation 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. 36 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. 37 is a schematic diagram of connection between the laminar flow fan 100 and the laminar flow motor 20 from another view angle in fig. 36, and fig. 38 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. 36.
As shown in fig. 36 and 37, 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. 38, 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 the 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. 38 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. 38, 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. 38, when the pitch variation amounts between every two adjacent annular disk sheets 10 in the plurality of annular disk sheets 10 are-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. 39 is a partial sectional view of a laminar flow fan 100 having a plurality of ring disks 10 with gradually changing inner diameters, and fig. 40 is a schematic diagram of the relationship between the gradual change of the inner diameters of the plurality of ring disks 10 and the air volume and the air pressure of the laminar flow fan 100 in fig. 39. 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. 40, 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 refers to the air Pressure. Specifically, fig. 40 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. 40, 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. 40, 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. 41 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. 42 is a schematic diagram of a relationship between the central angle and air volume and air pressure in fig. 41. Each of the ring disks 10 of the laminar flow fan 100 of fig. 41 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. 42, 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 air volume, and the right ordinate axis Pressure means air Pressure. Specifically, fig. 42 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. 42, 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. 42, 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, the interior of which defines a cavity, and the upper portion of the housing 310 is provided with an air outlet 320, and the middle lower portion is provided with an air inlet 330; laminar flow fan 100, set up inside the cavity that corresponds air outlet 320, it 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 a laminar flow motor 20 configured to drive the plurality of annular disks 10 to rotate, so that the air boundary layer 13 adjacent to the surfaces of the plurality of annular disks 10 moves from inside to outside in a rotating manner, thereby forming laminar air blown out by the air outlet 320. The indoor unit 300 of the vertical air conditioner is provided with the laminar flow fan 100, laminar flow air supply is realized through a viscous effect, the noise in the air supply process is low, the air volume is high, and the use experience of a user is effectively improved.
Further, in the floor air conditioner indoor unit 300 of the present embodiment, the laminar flow fan 100 further includes: a driving disk 30 spaced apart from and arranged in parallel on one side of the plurality of annular disks 10; and a connection 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, the laminar flow motor 20 being further 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. The laminar flow motor 20 is fixed between the fixing frame 350 and the fixing plate 340, wherein a through hole 352 is formed in the center of the fixing frame 350, and the output shaft 21 of the laminar flow motor 20 passes through the through hole 352 and then is fixed with the driving disc 30. The connection firmness of the laminar flow fan 100 and the laminar flow motor 20 can be effectively enhanced, and the overall working reliability is improved.
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 (11)

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, an air outlet is formed in the upper part of the shell, and an air inlet is formed in the middle lower part of the shell;
laminar flow fan sets up in corresponding the air outlet inside the cavity, it includes: 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 configured to drive the plurality of annular discs to rotate, so that the boundary layer of air 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.
2. An indoor unit of a floor air conditioner according to claim 1,
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.
3. An indoor unit for a floor air conditioner according to claim 2, further comprising:
the fixing plate is provided with a plurality of reinforcing ribs on one side and a plurality of clamping grooves on the other side; and
the fixing frame faces one side of the fixing plate and is provided with a plurality of clamping jaws corresponding to the clamping grooves, so that the plurality of clamping jaws are respectively screwed with the plurality of clamping grooves and then fix the laminar flow motor between the fixing frame and the fixing plate, a through hole is formed in the center of the fixing frame, and an output shaft of the laminar flow motor penetrates through the through hole and then is fixed with the driving disc.
4. An indoor unit for a floor air conditioner according to claim 2, further comprising:
and the air inducing ring is arranged on one side of the plurality of annular discs far away from the driving disc and is configured to guide the air entering the cavity through the air inlet into the air inlet channel.
5. An indoor unit of a floor air conditioner according to claim 1,
the shell is provided with the air outlet at the upper part thereof, and surrounds the laminar flow fan for one circle.
6. An indoor unit for a floor air conditioner according to claim 1, further comprising:
the wind shielding piece is arranged outside the laminar flow fan and provided with a notch;
the shell is provided with the air outlet at the position corresponding to the notch at the upper part of the shell.
7. An indoor unit of a floor air conditioner according to claim 2,
the center of the driving disc faces the annular discs to form a groove, and the laminar flow motor is fixedly arranged in the groove.
8. An indoor unit of a floor air conditioner according to claim 2,
the surface of the drive disk facing the laminar flow motor is planar, and the surface facing the plurality of annular disks has a conical projection to guide the flow of air entering the laminar flow fan and assist in forming the laminar flow wind.
9. An indoor unit of a floor air conditioner according to claim 2,
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.
10. An indoor unit of a floor air conditioner according to claim 9,
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.
11. An indoor unit of an air conditioner according to claim 2, 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.
CN201920079744.5U 2019-01-17 2019-01-17 Indoor machine of floor air conditioner Active CN209877122U (en)

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Application Number Priority Date Filing Date Title
CN201920079744.5U CN209877122U (en) 2019-01-17 2019-01-17 Indoor machine of floor air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920079744.5U CN209877122U (en) 2019-01-17 2019-01-17 Indoor machine of floor air conditioner

Publications (1)

Publication Number Publication Date
CN209877122U true CN209877122U (en) 2019-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920079744.5U Active CN209877122U (en) 2019-01-17 2019-01-17 Indoor machine of floor air conditioner

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020147751A1 (en) * 2019-01-17 2020-07-23 青岛海尔空调器有限总公司 Indoor unit of floor air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020147751A1 (en) * 2019-01-17 2020-07-23 青岛海尔空调器有限总公司 Indoor unit of floor air conditioner
CN111442361A (en) * 2019-01-17 2020-07-24 青岛海尔空调器有限总公司 Indoor machine of floor air conditioner
CN111442361B (en) * 2019-01-17 2023-04-28 青岛海尔空调器有限总公司 Indoor machine of vertical air conditioner

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