CN210014452U - Ceiling type air conditioner indoor unit - Google Patents
Ceiling type air conditioner indoor unit Download PDFInfo
- Publication number
- CN210014452U CN210014452U CN201920079196.6U CN201920079196U CN210014452U CN 210014452 U CN210014452 U CN 210014452U CN 201920079196 U CN201920079196 U CN 201920079196U CN 210014452 U CN210014452 U CN 210014452U
- Authority
- CN
- China
- Prior art keywords
- air
- shell
- indoor unit
- fan
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001737 promoting effect Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 7
- 230000001965 increasing effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 abstract description 12
- 239000000725 suspension Substances 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000007664 blowing Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a machine in suspension type air conditioning, it includes: the top of the shell is used for being fixed on a roof, the bottom of the shell is provided with an air inlet, and the side of the shell is provided with an air supply outlet or a plurality of air supply outlets with different directions; the heat exchanger is arranged in the shell; the fan is arranged in the shell and used for promoting indoor air to enter the shell from the air inlet and flow to the air supply outlet after exchanging heat with the heat exchanger; and the flow guide disc is arranged below the shell and used for guiding indoor air to flow to the air inlet from all positions on the periphery of the flow guide disc through a gap between the flow guide disc and the shell. The utility model discloses a machine in suspension type air conditioning is sufficient many angles, all-round air supply, and the fan loss is littleer and the noise is lower, and the bottom outward appearance is more pleasing to the eye.
Description
Technical Field
The utility model relates to an air conditioning technology field, in particular to machine in suspension type air conditioning.
Background
Conventional household air conditioners are typically cabinet or on-hook. Indoor units of cabinet air conditioners and on-hook units typically have a supply air outlet to supply air to the room. In addition, the cabinet machine and the hanging machine are limited by the structure, the air can be supplied in only one direction, and the air supply direction is single.
In addition, although the air guide plate and the swinging blade are used for guiding air, the air supply range is still not large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a machine in air conditioning that can multi-angle, all-round air supply.
The utility model discloses a another aim makes the air inlet of machine in the suspension type air conditioner more smooth and easy, reduce the windage, and beautifies the bottom outward appearance of machine in the suspension type air conditioner.
The utility model discloses a still another aim is to make the noise of machine in suspension type air conditioning littleer, the amount of wind is higher.
Particularly, the utility model provides a machine in suspension type air conditioning, include:
the top of the shell is used for being fixed on a roof, the bottom of the shell is provided with an air inlet, and the side of the shell is provided with an air supply outlet or a plurality of air supply outlets with different directions;
the heat exchanger is arranged in the shell;
the fan is arranged in the shell and used for promoting indoor air to enter the shell from the air inlet and flow to the air supply outlet after exchanging heat with the heat exchanger; and
and the flow guide disc is arranged below the shell and used for guiding indoor air to flow to the air inlet from all positions on the periphery of the flow guide disc through a gap between the flow guide disc and the shell.
Optionally, the deflector has a tapered guide ramp sloping gradually downwardly from its center to its periphery to guide the air to flow obliquely upwardly to enter the air inlet.
Optionally, the generatrix of the tapered lead-in ramp is curved inwardly with a center that is concave compared to the upper and lower ends.
Optionally, the peripheral contour of the diaphragm is circular; and the air inlet is round.
Optionally, the diaphragm has a peripheral profile diameter greater than the diameter of the intake opening.
Optionally, the shell is further formed with an air inlet duct, and an inlet of the air inlet duct forms an air inlet; and the inner wall of the air inlet duct is a conical surface which gradually extends towards the center from bottom to top in an inclined manner.
Optionally, the diaphragm is mounted to the housing for up and down translation to adjust the spacing between it and the housing.
Optionally, the fan is a laminar flow fan comprising: a plurality of annular discs which are arranged in parallel at intervals and fixedly connected with each other, and the axes of the annular discs extend along the vertical direction and are collinear; and the motor is used for driving the plurality of annular discs to rotate so that an air boundary layer close to the surfaces of the plurality of annular discs is driven by the plurality of annular discs to rotate from inside to outside due to the viscous effect to form laminar wind.
Optionally, for a plurality of annular disks, the distance between two adjacent annular disks gradually increases from bottom to top.
Optionally, the fan is a centrifugal fan with an axis extending in a vertical direction.
Optionally, the heat exchanger is between the fan and the supply air outlet and surrounds the fan.
The utility model discloses an indoor set of air conditioner is indoor set of ceiling type air conditioner, and its hoist and mount are on the roof, and the air intake is located the bottom, and the supply-air outlet is located the lateral part. Therefore, the plurality of air supply openings can be arranged on the side part and face different directions, and all-around air outlet and 360-degree circumferential all-around air supply can be achieved. And because the installation position of the ceiling type air conditioner indoor unit is higher, the air outlet coverage range is also extremely large.
Further, the utility model discloses an among the suspension type air conditioning indoor set, the below of casing bottom air intake still sets up the guiding plate, makes wind flow to the air intake from the clearance between guiding plate and the casing. Compared with the scheme that wind directly vertically enters the shell from the bottom of the shell upwards, the bottom appearance (the bottom of the top-hung indoor unit mainly faces a user) of the top-hung indoor unit is more attractive due to the arrangement of the flow guide disc, and the influence of the complex air inlet grille arranged at the bottom of the shell on the appearance is avoided. Moreover, the air inlet direction is close to the horizontal direction, the air outlet direction is also close to the horizontal direction, and the included angle between the air inlet direction and the air outlet direction is smaller, so that the energy consumption and the noise of the fan are reduced.
Further, the utility model discloses an in the suspension type air conditioning indoor set, the interval between its and the casing can be adjusted to the guiding plate can be installed in the casing with translation from top to bottom to adjust the intake, change air-supply capacity and refrigerating output heating capacity with this.
Further, the utility model discloses a machine adopts laminar flow fan in suspension type air conditioning, and makes the interval between two adjacent ring plate pieces by supreme crescent down, can effectively promote laminar flow fan's the amount of wind for laminar flow fan's air-out satisfies user's user demand. In addition, laminar flow fan realizes the laminar flow air supply through the viscidity effect, reduces traditional fan and can not increase the requirement that the blade can satisfy the amount of wind even to the use of blade, and air supply process small in noise, amount of wind are high, effectively promote user's use and experience.
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 side view of a ceiling type air conditioner indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic bottom view of the ceiling type air conditioner indoor unit shown in fig. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
fig. 4 is a schematic view of the overall structure of a laminar flow fan according to an embodiment of the present invention;
FIG. 5 is a schematic view of the laminar flow fan of FIG. 4 from another perspective;
FIG. 6 is a schematic view of the laminar flow fan of FIG. 5 from another perspective;
fig. 7 is a schematic diagram of an air supply principle of a laminar flow fan according to an embodiment of the present invention;
fig. 8 is a velocity profile and force profile of a laminar flow fan according to an embodiment of the present invention;
fig. 9 is a schematic air circulation diagram of a laminar flow fan according to an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a relationship between gradual pitch change of a plurality of annular disks and air volume and air pressure of a laminar flow fan according to an embodiment of the present invention;
fig. 11 is a schematic diagram illustrating a relationship between a motor rotation speed and an air volume and an air pressure of a laminar flow fan according to an embodiment of the present invention.
Detailed Description
A ceiling type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 11. Where the orientations or positional relationships indicated by the terms "front", "back", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc., are based on the orientations or positional relationships shown in the drawings, they are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
The indoor unit of ceiling type air conditioner of the embodiment of the present invention constitutes a vapor compression refrigeration cycle system together with an outdoor unit of air conditioner (not shown), and realizes the refrigeration/heating of the indoor environment.
Fig. 1 is a schematic side view of a ceiling type air conditioner indoor unit according to an embodiment of the present invention; fig. 2 is a schematic bottom view of the ceiling type air conditioner indoor unit shown in fig. 1; fig. 3 is a sectional view B-B of fig. 2.
As shown in fig. 1 to 3, a ceiling type air conditioner indoor unit according to an embodiment of the present invention may generally include a casing 100, a heat exchanger 400, a fan 300, and a baffle 200.
The ceiling type air conditioning indoor unit is integrally installed under the roof of an indoor room, the top of the casing 100 is used to be fixed to the roof, and the rest of the indoor unit is exposed under the roof. The roof is illustrated with dashed lines with reference to fig. 1. The housing 100 has an air inlet 110 at the bottom and an air outlet 120 at the side. The number of the air supply openings can be one or more. For example, if the indoor unit is installed on a roof near a side wall, only one air supply opening may be provided. If the installation position of this indoor set is far away from the side wall, if set up in roof central authorities, can set up a plurality of air supply outlets towards diverse such as 3, 4 to realize multi-angle air supply, as shown in fig. 2, casing 100 is square structure, arranges four air supply outlets 120 along casing 100 circumference, in order to realize the air supply of four directions. Of course, more air supply ports 120 may be arranged along the circumferential direction of the casing 100 to supply air in more directions. Even, the casing can be circular, and the air supply outlets are formed in the circumferential full angle of the casing for air outlet, so that 360-degree all-directional air supply is realized. In addition, because of the higher mounted position of the indoor unit of the ceiling type air conditioner, the air-out coverage range is also very large, the refrigerating/heating speed is favorably improved, and the user feels more comfortable.
As shown in fig. 1 to 3, an air deflector 121 may be disposed at each of the air blowing ports 120 to open and close the air blowing ports 120. The air guiding plate 121 can be controlled to guide the air outlet angle in a rotating manner around a horizontal axis.
Disposed within the housing 100 is a heat exchanger 400, which may be an evaporator of a vapor compression refrigeration cycle. When the air conditioner is turned on, indoor air enters the casing 100 from the air inlet 110, flows through the heat exchanger 400, exchanges heat with the heat exchanger 400 to become heat-exchange air (the heat-exchange air is cold air during cooling, and the heat-exchange air is hot air during heating), and the heat-exchange air is blown back to the indoor space from the air supply outlet 120 to realize indoor cooling/heating.
A fan 300 is disposed within the housing 100 for powering the airflow process. The fan 300 may be a laminar flow fan having an axis extending in a vertical direction (i.e., up and down direction) so as to supply air from below and discharge air laterally. The structure of the laminar flow fan will be described in detail later.
In addition, the fan may be a centrifugal fan, and specifically may be a backward centrifugal fan.
The heat exchanger 400 is disposed between the fan 300 and the air blowing opening 120, and surrounds the fan 300, so that the air flow passes through the surface of the heat exchanger 400 more, and the heat exchange efficiency is improved.
The diaphragm 200 is disposed under the casing 100 with a top surface thereof forming a gap with a bottom surface of the casing 100. One function of the baffle 200 is to guide indoor air from all around the periphery of the baffle 200 to the intake vent 110 through a gap between the baffle 200 and the casing 100. Compare in the direct vertical scheme that upwards gets into casing 100 of messenger's wind from casing 100 bottom, the embodiment of the utility model provides a set up guiding disc 200 for the bottom outward appearance of suspension type indoor set (its bottom is mainly towards the user) is more pleasing to the eye, avoids casing 100 bottom to arrange complicated air inlet grille and influences the outward appearance. Moreover, the air inlet direction is close to the horizontal direction, the air outlet direction is also close to the horizontal direction, and the included angle between the air inlet direction and the air outlet direction is smaller, so that the energy consumption and the noise of the fan are reduced.
As shown in fig. 1 and 3, the baffle 200 may have a tapered guide slope 201 gradually inclined downward from the center thereof to the periphery thereof to guide indoor air. After entering the gap between the diaphragm 200 and the housing 100 from the periphery of the diaphragm 200, the indoor air is guided by the tapered guiding slope 201 to gradually flow obliquely upward to facilitate the indoor air to enter the air inlet 110. It is understood that the generatrix of the tapered guide slope 201 (which is rotated about the rotational axis of the diaphragm 200 to form the tapered guide slope 201) is not necessarily a straight line, but may be an arc line with a center recessed inward compared to the upper and lower ends as shown in fig. 3.
In addition, the casing 100 may be formed with an air inlet duct 140, and an inlet of the air inlet duct 140 forms the air inlet 110. The inner wall of the air inlet duct 140 is a tapered surface that gradually extends from bottom to top to the center in an inclined manner, so as to form a volute-like structure with the tapered guide inclined surface 201 of the deflector 200, thereby enhancing the air inlet guide function and improving the air suction efficiency of the fan.
As shown in fig. 1 and 3, the circumferential contour of the baffle 200 may be circular, and the intake vent 110 may also be circular. Both are circular structures for more smoothly entering air, and the bottom appearance of the indoor unit is more attractive. In addition, the peripheral contour diameter of the diversion disk 200 can be made larger than the diameter of the air inlet 110, so as to increase the diversion length of the diversion disk 200 and ensure the diversion effect. Meanwhile, the baffle 200 can completely shield the air inlet 110, so that the bottom of the indoor unit is more beautiful. As shown in fig. 1, the diaphragm 200 is connected to the housing 100 by a plurality of connecting arms 210.
As mentioned above, the fan may be a centrifugal fan or a laminar flow fan. However, the centrifugal fan 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 is operated. The centrifugal fan has wide blades and a large thickness, and thus generates very large noise when the motor is operated at high speed.
Therefore, the fan 300 is preferably a laminar flow fan, so that the use of the traditional fan on the blades is reduced, even the requirement of the air volume can be met without increasing the blades, the noise in the air supply process is low, the air volume is high, and the use experience of a user is effectively improved.
Fig. 4 is a schematic view of the overall structure of a laminar flow fan according to an embodiment of the present invention; FIG. 5 is a schematic view of the laminar flow fan of FIG. 4 from another perspective; fig. 6 is a schematic view of the laminar flow fan shown in fig. 5 from another perspective.
As shown in fig. 4 to 6, the laminar flow fan of the present embodiment may generally include a plurality of annular disks 10 and a motor 20. Wherein, a plurality of annular disc 10 parallel interval sets up and mutual fixed connection, axis all extend and collineation along vertical direction. The motor 20 is used for driving the plurality of annular discs 10 to rotate, so that an air boundary layer close to the surfaces of the plurality of annular discs 10 is driven by the plurality of annular discs 10 to rotate from inside to outside due to a viscous effect to form laminar wind. The air boundary layer 13 is a very thin layer of air adjacent to the surface of each disk. The air supply process of the laminar flow fan is low in noise and high in air quantity, and the use experience of a user is effectively improved.
Further, the distance between two adjacent annular disks 10 can be gradually increased from bottom to top. The inventor finds that the air volume of the laminar flow fan can be effectively improved as the distance between two adjacent annular disks 10 is gradually increased from bottom to top through a plurality of experiments. In some embodiments, the distance between two adjacent annular disks 10 varies by the same amount, that is, the distance between two adjacent annular disks 10 increases from bottom to top by the same value. For example, the distances between two adjacent annular disks 10 in the 8 annular disks 10 may be sequentially set from bottom to top as follows: 13.75mm, 14.75mm, 15.75mm, 16.75mm, 17.75mm, 18.75mm and 19.75mm, and the distance between two adjacent annular disks 10 is increased by 1mm from bottom to top. It should be noted that the specific values of the variation of the spacing between two adjacent annular disks 10 are only examples, and are not limitations of the present invention.
Considering that the thickness of the laminar flow fan cannot be too large, the number of the annular disks 10, the distance between two adjacent annular disks 10, and the thickness of the annular disks 10 need to be correspondingly constrained. In addition, the volume occupied by the laminar flow fan cannot be too large, and the outer diameter of the annular disk 10 needs to be correspondingly restricted. It should be noted that the outer diameter of the annular disk 10 refers to the radius of the outer circumference of the annular disk 10, and the inner diameter of the annular disk 10 refers to the radius of the inner circumference of the annular disk 10.
The laminar flow fan may also include a single circular disk 30 and a connecting rod 40. The circular disks 30 may be disposed above the plurality of annular disks 10 in parallel at intervals, and the motor 20 is disposed below the circular disks 30 and fixed to the housing 100. Tie rods 40 may extend through circular disk 30 and plurality of annular disks 10 to connect plurality of annular disks 10 to circular disk 30. The motor 20 is also configured to directly drive the circular disk 30 to rotate, and thus the circular disk 30 rotates the plurality of annular disks 10. That is, the motor 20 configured to rotate the plurality of annular discs 10 is dependent on the motor 20 first rotating the circular discs 30 and then rotating the plurality of annular discs 10 by the circular discs 30. In a specific embodiment, the radius of the circular disk 30 is the same as the outer diameter of the plurality of annular disks 10, and may be set to be 170mm to 180mm, so as to restrict the occupied volume in the lateral direction of the laminar flow fan.
In some embodiments, the connecting rods 40 are multiple and are uniformly spaced throughout the edges of the circular disks 30 and the plurality of annular disks 10. The connecting rods 40 uniformly penetrate through the edges of the circular disk 30 and the annular disks 10 at intervals, so that the connection relationship between the circular disk 30 and the annular disks 10 is stable, and further, when the motor 20 drives the circular disk 30 to rotate, the circular disk 30 can stably drive the annular disks 10 to rotate, and the working reliability of the laminar flow fan is improved.
Fig. 7 is a schematic diagram of an air supply principle of a laminar flow fan according to an embodiment of the present invention; fig. 8 is a velocity profile and force profile of a laminar flow fan according to an embodiment of the present invention.
As shown in fig. 7 and 8, the blowing principle of the laminar flow fan is mainly derived from a "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 of this embodiment, the motor 20 drives the circular disk 30, the circular disk drives the plurality of annular disks 10 to rotate at a high speed, and the air in the intervals of the annular disks contacts and moves with each other, so that the air boundary layer 13 near the surfaces of the annular disks is driven by the rotating annular disks to rotate from inside to outside under the action of the viscous shear force τ to form laminar flow wind.
Fig. 8 is a schematic diagram showing the viscous shear force distribution τ (y) and the velocity distribution u (y) to which the air boundary layer 13 is subjected. Air (a)The viscous shear experienced by the boundary layer 13 is actually the resistance that the individual discs create to the air boundary layer 13. The axis of abscissa in fig. 8 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.
Fig. 9 is an air circulation schematic diagram of a laminar flow fan according to an embodiment of the present invention.
As shown in fig. 4 to 6 and 9, the air inlet channel 11 is formed at the center of the plurality of annular disks 10 to allow air outside the laminar flow fan to enter. A plurality of air outlets 12 are formed in gaps between the plurality of annular disks 10 to allow laminar air to be blown out. The process of the laminar wind formed by the air boundary layer 13 rotating from inside to outside is centrifugal motion, so that the speed of the laminar wind leaving the air outlet 12 is higher than that of the laminar wind entering the air inlet channel 11. In the plurality of annular disks 10 of the present embodiment, the distance between every two adjacent annular disks 10 gradually increases from bottom to top, that is, the plurality of annular disks 10 are arranged in parallel at different intervals. The air outlets 12 formed by the gaps among the annular disks 10 can enable the laminar flow fan to uniformly supply air for 360 degrees, various uncomfortable symptoms caused by direct blowing of air supplied by an air conditioner are avoided for a user, and the use experience of the user is further improved. The distance between two adjacent annular disks 10 described above gradually increases from bottom to top, which 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.
The plurality of annular disks 10 may each be planar disks and in a preferred embodiment, the lower surface of the circular disk 30 has an inverted conical protrusion 31 to direct the air flow entering the laminar flow fan and assist in forming laminar air flow. The upper surface of circular disk 30 may be a plane, and circular disk 30 mainly functions to fixedly receive motor 20 and is connected to a plurality of annular disks 10 through connecting rod 40, so as to drive a plurality of annular disks 10 to rotate when motor 20 drives circular disk 30 to rotate. The inverted cone-shaped protrusion 31 on the lower surface of the circular disk 30 can effectively guide the air entering the laminar flow fan through the air inlet channel to enter the gap between the annular disks, thereby improving the efficiency of forming laminar flow air.
Fig. 10 is a schematic diagram illustrating a relationship between a gradual pitch change of a plurality of annular disks 10 of an annular disk 10 of a laminar flow fan and an air volume and an air pressure according to an embodiment of the present invention. The abscissa axis damping uniform expansion plate distance increment refers to the variation of the distance between two adjacent annular discs 10 along the direction from bottom to top, the left ordinate axis Mass flow rate refers to the air volume, the right ordinate axis Pressure refers to the air Pressure, and the air Pressure refers to the Pressure difference between the air outlet 12 of the laminar flow fan and the inlet of the air inlet channel 11. 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. 10 is a schematic diagram illustrating the relationship between the gradual change of the pitch of the plurality of ring disks 10 and the air volume and the air pressure when the outer diameter, the inner diameter, the number, the thickness of the ring disks 10 and the rotation speed of the motor 20 of the laminar flow fan are all kept constant. As shown in fig. 10, when the above mentioned parameters are all kept unchanged, the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 gradually changes from bottom to top, which has a large influence on the air volume and a small influence on the air pressure. When the variation of the distance between two adjacent annular disks 10 along the direction from bottom to top, which is represented by the abscissa axis, is a positive number, it indicates that the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 gradually increases from bottom to top; when the variation of the spacing between two adjacent annular disks 10 along the direction from bottom to top, which is represented by the abscissa axis, is a negative number, it indicates that the spacing between every two adjacent annular disks 10 in the plurality of annular disks 10 gradually decreases from bottom to top. As can be seen from fig. 10, when the variation of the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 is-1 mm, 1mm and 2mm, the air volume and the air pressure of the laminar flow fan are both greatly improved. The air volume and the air pressure of the laminar flow fan are comprehensively considered, and the distance between every two adjacent annular disks 10 in the plurality of annular disks 10 is gradually increased from bottom to top. In an embodiment, the outer diameter of the ring disk 10 of the laminar flow fan is 175mm, the inner diameter of the ring disk 10 is 115mm, the number of the ring disks 10 is 8, the thickness of the ring disk 10 is 2mm, and the rotation speed of the motor 20 is 1000rpm (revolutions per minute), at this time, the air volume and the air pressure of the laminar flow fan are considered comprehensively, and the distance between two adjacent ring disks 10 in the 8 ring disks 10 can be set sequentially from bottom to top: 13.75mm, 14.75mm, 15.75mm, 16.75mm, 17.75mm, 18.75mm and 19.75mm, namely, the distance between two adjacent annular disks 10 increases by 1mm from bottom to top. It should be noted that, the distance between two adjacent annular disks 10 in the plurality of annular disks 10 gradually increases from bottom to top, which 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. 11 is a schematic diagram illustrating the relationship between the rotation speed of the motor 20 of the laminar flow fan and the air volume and the air pressure according to an embodiment of the present invention. Wherein the abscissa axis Speed of revolution refers to the rotational Speed of the motor 20, the left ordinate axis Massflow rate refers to the air volume, and the right ordinate axis Pressure refers to the air Pressure. Specifically, fig. 11 is a schematic diagram illustrating the relationship between the rotation speed of the motor 20 and the air volume and the air pressure when the outer diameter, the inner diameter, the number of layers, the distance, and the thickness of the ring-shaped disk 10 of the laminar flow fan are all kept constant. As shown in fig. 11, when the above mentioned parameters are kept constant, the air volume increases substantially linearly with the increase of the rotation speed of the motor 20, but the increase of the speed tends to be slow, and the increase of the air pressure is not substantially changed. That is, for the same laminar flow fan, the air volume increases approximately linearly as the rotation speed of the motor 20 increases. In a preferred embodiment, the outer diameter of the annular disk 10 of the laminar flow fan is 175mm, the inner diameter of the annular disk 10 is 115mm, the number of the annular disks 10 is 8, and the distance between two adjacent annular disks 10 is sequentially set from bottom to top: 13.75mm, 14.75mm, 15.75mm, 16.75mm, 17.75mm, 18.75mm, 19.75mm, when the thickness of the annular disc 10 is 2mm, the linear relation between the rotating speed of the motor 20 and the air volume of the laminar flow fan is more obvious.
Since the rotation speed of the motor 20 and the air volume of the laminar flow fan are approximately linear, in a preferred embodiment, the motor 20 may be further configured to: the rotating speed of the motor 20 is determined according to the acquired target air volume of the laminar flow fan. That is, the target air volume of the laminar flow fan may be first obtained, and then the rotation speed of the motor 20 may be determined according to a linear relationship between the target air volume and the rotation speed of the motor 20. The target air volume may be obtained by an input operation of the user.
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. A ceiling type air conditioner indoor unit, characterized by comprising:
the top of the shell is used for being fixed on a roof, the bottom of the shell is provided with an air inlet, and the side of the shell is provided with an air supply outlet or a plurality of air supply outlets with different directions;
a heat exchanger disposed within the housing;
the fan is arranged in the shell and used for promoting indoor air to enter the shell from the air inlet, and the indoor air flows to the air supply outlet after exchanging heat with the heat exchanger; and
and the flow guide disc is arranged below the shell and used for guiding indoor air to flow to the air inlet through a gap between the flow guide disc and the shell from all parts of the periphery of the flow guide disc.
2. The indoor unit of a ceiling type air conditioner as set forth in claim 1,
the deflector has a tapered guide slope gradually inclined downward from the center to the periphery thereof to guide the air to gradually flow obliquely upward so as to enter the air inlet.
3. The indoor unit of a ceiling type air conditioner as set forth in claim 1,
the peripheral outline of the flow guide disc is circular; and is
The air inlet is circular.
4. The indoor unit of a ceiling type air conditioner as set forth in claim 2,
the generatrix of the conical guide inclined plane is an arc line with the middle concave inwards compared with the upper end and the lower end.
5. The indoor unit of a ceiling type air conditioner as set forth in claim 3,
the peripheral outline diameter of the flow guide disc is larger than that of the air inlet.
6. The indoor unit of a ceiling type air conditioner as set forth in claim 1,
the shell is also provided with an air inlet duct, and an inlet of the air inlet duct forms the air inlet; and is
The inner wall of the air inlet duct is a conical surface which is inclined and extends from bottom to top to the center gradually.
7. The indoor unit of a ceiling type air conditioner as set forth in claim 1,
the fan is laminar flow fan, and it includes:
the annular disks are arranged in parallel at intervals and fixedly connected with each other, and the axes of the annular disks extend along the vertical direction and are collinear; and
and the motor is used for driving the plurality of annular discs to rotate, so that an air boundary layer close to the surfaces of the plurality of annular discs is driven by the plurality of annular discs to rotate and move from inside to outside due to a viscous effect to form laminar wind.
8. The indoor unit of a ceiling type air conditioner as set forth in claim 7,
for the plurality of annular disks, the distance between two adjacent annular disks is gradually increased from bottom to top.
9. The indoor unit of a ceiling type air conditioner as set forth in claim 1,
the fan is a centrifugal fan with an axis extending in the vertical direction.
10. The indoor unit of a ceiling type air conditioner as set forth in claim 8 or 9,
the heat exchanger is arranged between the fan and the air supply outlet and surrounds the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079196.6U CN210014452U (en) | 2019-01-17 | 2019-01-17 | Ceiling type air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079196.6U CN210014452U (en) | 2019-01-17 | 2019-01-17 | Ceiling type air conditioner indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210014452U true CN210014452U (en) | 2020-02-04 |
Family
ID=69312384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920079196.6U Active CN210014452U (en) | 2019-01-17 | 2019-01-17 | Ceiling type air conditioner indoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210014452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777217A (en) * | 2022-05-02 | 2022-07-22 | 广东科学技术职业学院 | Air inlet air conditioner external unit and air conditioning system |
-
2019
- 2019-01-17 CN CN201920079196.6U patent/CN210014452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777217A (en) * | 2022-05-02 | 2022-07-22 | 广东科学技术职业学院 | Air inlet air conditioner external unit and air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209744542U (en) | Indoor unit of air conditioner | |
| CN209744544U (en) | laminar flow fan and ceiling type air conditioner indoor unit | |
| CN209744543U (en) | Indoor unit of air conditioner | |
| CN210014452U (en) | Ceiling type air conditioner indoor unit | |
| WO2020147313A1 (en) | Ceiling-suspended air conditioner indoor unit | |
| CN210014450U (en) | Ceiling type air conditioner indoor unit | |
| CN111442376B (en) | Ceiling type air conditioner indoor unit | |
| CN209744540U (en) | Ceiling type air conditioner indoor unit | |
| CN209744541U (en) | laminar flow fan and ceiling type air conditioner indoor unit | |
| CN111442379B (en) | Laminar flow fan and ceiling mounted air conditioner indoor unit | |
| CN209840268U (en) | Ceiling type air conditioner indoor unit | |
| CN209744539U (en) | Ceiling type air conditioner indoor unit | |
| CN209819688U (en) | Ceiling type air conditioner indoor unit | |
| CN209840271U (en) | Ceiling type air conditioner indoor unit | |
| CN209840266U (en) | Ceiling type air conditioner indoor unit | |
| CN210014447U (en) | Ceiling type air conditioner indoor unit | |
| CN209840267U (en) | Ceiling type air conditioner indoor unit | |
| CN209840269U (en) | Ceiling type air conditioner indoor unit | |
| CN209744534U (en) | ceiling type air conditioner indoor unit | |
| CN209840273U (en) | Ceiling type air conditioner indoor unit | |
| CN210014448U (en) | Ceiling type air conditioner indoor unit | |
| CN209819690U (en) | Ceiling type air conditioner indoor unit | |
| CN111442378B (en) | Ceiling type air conditioner indoor unit | |
| CN111442380A (en) | Air conditioner indoor unit | |
| CN209744535U (en) | Ceiling type air conditioner indoor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |