CN104566625B - Air pipe indoor unit - Google Patents
Air pipe indoor unit Download PDFInfo
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- CN104566625B CN104566625B CN201310470367.5A CN201310470367A CN104566625B CN 104566625 B CN104566625 B CN 104566625B CN 201310470367 A CN201310470367 A CN 201310470367A CN 104566625 B CN104566625 B CN 104566625B
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- air outlet
- indoor unit
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000008520 organization Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention provides an air pipe indoor unit, which comprises a shellThe heat exchanger is fixedly arranged inside the shell, the water receiving disc is arranged on the lower portion of the heat exchanger, the fan is arranged on one side of the heat exchanger, the air inlet and the air outlet which are respectively located on two sides of the heat exchanger are arranged on the shell, the air outlet is arranged in a downward inclined mode, and an included angle is formed between the air outlet direction of the air outlet and the lower side face of the shellWherein the content of the first and second substances, according to the air pipe indoor unit, the air outlet is arranged in a downward inclined mode, so that air is blown out obliquely downward, the problem that the air outlet direction of a common small household air pipe indoor unit can be downward only by installing the air pipe is effectively solved, and in addition, the angle between the air outlet direction and the lower side surface is limitedWithin the range of 30-90 degrees, thereby ensuring the air outlet efficiency and improving the heating comfort.
Description
Technical Field
The invention relates to the field of air duct machines, in particular to an air duct indoor unit.
Background
As shown in fig. 1 to 4, a household small-sized air duct indoor unit in the market at present mainly includes a casing 10, a heat exchanger 20 is fixedly disposed inside the casing 10, a water pan 30 is disposed below the heat exchanger 20, a fan 40 is disposed on one side of the heat exchanger 20, and an air inlet 11 and an air outlet 12 located on both sides of the heat exchanger 20 are disposed on the casing 10. The following forms are mainly used for the mode of airflow organization:
and (3) side-feeding and bottom-returning, as shown in fig. 1 and 2, an air inlet 11 of the air pipe indoor unit is designed at the lower part of the indoor unit, an air outlet 12 of the air pipe indoor unit is designed at the side surface of the indoor unit, and both return air and outlet air can be connected with an air pipe or in flexible connection to form an air flow organization loop with side-feeding and bottom-returning.
The air inlet 11 of the air pipe indoor unit is designed at the rear part of the indoor unit, the air outlet 12 of the air pipe indoor unit is designed at the side surface of the indoor unit, and the return air is connected to the rear part of the unit through an air pipe and connected with an air outlet pipe or a flexible connection to form an airflow organization loop after the side feeding, or the air outlet pipe or the flexible connection is turned downwards to form a form of the side feeding and the return.
It can be seen from above tuber pipe indoor set structure, air current organization mode that domestic small-size tuber pipe indoor set structure in industry at present is various, but to the installation of actual usefulness, the form is single, and the air outlet 12 of unit all sets up the side at the casing, and in the in-service use process, generally all needs the air-out direction downwards, just so need install the tuber pipe, causes the installation trouble, moreover, because the existence of tuber pipe, causes the travelling comfort poor.
Disclosure of Invention
The invention aims to provide a wind pipe indoor unit for discharging air downwards, and aims to solve the problem that the side wall of the wind pipe indoor unit is poor in air-out heating comfort.
The invention provides an air pipe indoor unit, which comprises a shell, wherein a heat exchanger is fixedly arranged in the shell, a water receiving disc is arranged at the lower part of the heat exchanger, a fan is arranged at one side of the heat exchanger, an air inlet and an air outlet which are respectively positioned at two sides of the heat exchanger are arranged on the shell, the air outlet is arranged in a downward inclined manner, and an included angle is formed between the air outlet direction of the air outlet and the lower side surface of the shellWherein,
further, the air conditioner is provided with a fan,
further, the upper side of the air outletThe surface and/or the lower side surface is provided with an air deflector, and the included angle between the air deflector and the upper side wall or the lower side wall of the shell is
Further, the heat exchanger is arranged on the air outlet side of the fan; the air inlet is arranged on the rear side wall of the shell; the air outlet sets up on the preceding lateral wall of casing, perhaps the casing is inside to be provided with the air-out wind channel that extends to the rear portion so that the air outlet is close to the rear side wall of casing.
Furthermore, the fan is a centrifugal fan, the centrifugal fan comprises a centrifugal fan volute, the centrifugal fan volute is provided with a diffusion part, the diffusion part is positioned at the upper part of the shell and faces the heat exchanger, an included angle α 1 is formed between the outer contour line of the diffusion part and the upper side wall of the shell, and the included angle is equal to or larger than 0 degree and equal to or smaller than α 1 degree and equal to or smaller than 45 degree.
Further, the heat exchanger is arranged on the air inlet side of the fan; the air inlet is arranged on the rear side wall of the shell; the air outlet sets up on the preceding lateral wall of casing, perhaps the casing is inside to be provided with the air-out wind channel that extends to the rear portion so that the air outlet is close to the rear side wall of casing.
The centrifugal fan comprises a centrifugal fan volute, the centrifugal fan volute is provided with a diffuser, the diffuser faces the lower portion of the shell, an included angle α 2 is formed between the outer contour line of the diffuser and the upper side wall of the shell, the included angle is not less than 0 degrees and not more than α 2 degrees and not more than 80 degrees, or an included angle α 3 is formed between the outer contour line of the diffuser and the lower side wall of the shell, and the included angle is not less than 0 degrees and not more than α 3 degrees and not more than 80 degrees.
Furthermore, the heat exchanger is a single-fold heat exchanger, an included angle between the single-fold heat exchanger and the horizontal plane is theta 1, wherein the theta 1 is more than or equal to 20 degrees and less than or equal to 90 degrees.
Further, the heat exchanger is a double-fold heat exchanger, the double-fold heat exchanger comprises a first heat exchanging part and a second heat exchanging part, an included angle theta 2 is formed between the first heat exchanging part and the second heat exchanging part, and theta 2 is larger than or equal to 20 degrees and smaller than or equal to 150 degrees.
Furthermore, the two heat exchangers are integrally bent or spliced and formed by two independent heat exchangers.
Further, the heat exchanger is a multi-fold heat exchanger which is more than two-fold.
Further, the air inlet is provided on at least one of a rear side wall, an upper side wall, and a lower side wall of the housing.
According to the air pipe indoor unit, the air outlet is arranged in a downward inclined mode, so that air is blown out obliquely downward, the problem that the air outlet direction of a common small household air pipe indoor unit can be downward only by installing the air pipe is effectively solved, in addition, the angle phi between the air outlet direction and the lower side face is limited within the range of 30-90 degrees, the air outlet efficiency is guaranteed, and the heating comfort is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a first structural schematic diagram of an air duct indoor unit according to the prior art;
fig. 2 is a second structure diagram of an indoor unit of an air duct according to the prior art;
fig. 3 is a third structural diagram of an indoor unit of an air duct according to the prior art;
fig. 4 is a fourth structural diagram of an indoor unit of an air duct according to the prior art;
fig. 5 is a schematic structural view of a first embodiment of an indoor unit of an air duct according to the present invention;
fig. 6 is a schematic structural view of a second embodiment of the air duct indoor unit according to the present invention;
fig. 7 is a schematic structural view of a third embodiment of an indoor unit of an air duct according to the present invention;
figure 8 is a schematic structural view of a fourth embodiment of an indoor unit of an air duct according to the present invention;
fig. 9 is a schematic structural view of a fifth embodiment of an indoor unit of an air duct according to the present invention;
figure 10 is a schematic structural view of a sixth embodiment of an indoor unit of an air duct according to the present invention; and
fig. 11 is a schematic structural view of a seventh embodiment of an indoor unit of an air duct according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 5 to 11, the air duct indoor unit according to the present invention includes a casing 10, a heat exchanger 20 is fixedly disposed inside the casing 10, a water pan 30 is disposed at a lower portion of the heat exchanger 20, a blower 40 is disposed at one side of the heat exchanger 20, an air inlet 11 and an air outlet 12 are disposed on the casing 10 and located at two sides of the heat exchanger 20, the air outlet 12 is disposed to be inclined downward, and an included angle is formed between an air outlet direction of the air outlet 12 and a lower side surface of the casing 10Wherein,the invention effectively solves the problem that the air outlet direction of the common small household air pipe indoor unit can be downward only by installing the air pipe by arranging the air outlet 12 in a downward inclination way, and in addition, the invention limits the angle between the air outlet direction and the lower side surfaceWithin the range of 30-90 degrees, thereby ensuring the air outlet efficiency and improving the heating comfort.
Preferably, as shown in fig. 5, the air outlet direction forms an angle with the lower side or the upper side of the casing 10Within the range of 45-60 degrees, the inclination angle of the air outlet direction is moderate, so that the air movement of a room is facilitated, the circulation of the air in the whole room is formed, and the comfort of the whole room is improved. More preferably, the upper side and/or the lower side of the air outlet 12 is provided with an air deflector, and the angle between the air deflector and the upper side wall or the lower side wall of the casing 10 isThereby ensuring that the included angle between the air outlet angle and the lower side surface isThe air outlet angle is ensured, so that the stable performance of the air pipe indoor unit is ensured, and the heating comfort is ensured.
As shown in fig. 5, according to the first embodiment of the present invention, the heat exchanger 20 is disposed on the air outlet side of the blower 40, the air inlet 11 is disposed on the rear sidewall of the housing 10, and the air outlet 12 is disposed on the front sidewall of the housing 10, and more specifically, the air outlet 12 is disposed at the corner between the lower sidewall and the front sidewall. Air enters the inside of the air pipe indoor unit from the air inlet 11, passes through the fan 41, exchanges heat with the heat exchanger 20, and is blown out from the air outlet 12 obliquely downwards.
Specifically, as shown in fig. 5, the air guiding plates disposed on the upper and lower sides of the air outlet 12 limit the air outlet direction, so as to ensure the included angle between the air outlet and the lower side of the casing 10The air flow of the room is promoted, so that the air in the whole room forms stable airflow circulation, and the comfort is improved.
In the first embodiment, the fan 40 is a centrifugal fan, the centrifugal fan includes a centrifugal fan volute 41, the centrifugal fan volute 41 has a diffuser 42, the diffuser 42 is located at the upper part of the casing 10 and faces the heat exchanger 20, in order to enable the wind blown by the centrifugal fan to better exchange heat with the heat exchanger 20, even if all areas of the heat exchanger 20 are uniformly exposed to wind as much as possible, the wind direction blown by the diffuser 42 is limited, that is, the included angle α 1 between the outer contour line of the diffuser 42 and the upper side wall of the casing 10 ranges from 0 ° to 45 °, so as to ensure that all surfaces of the heat exchanger 20 are uniformly exposed to wind.
In order to meet the requirements of different air supply areas of the air pipe indoor unit, namely when the outlet air and the return air of the indoor unit are in the same area, as shown in fig. 6, according to the second embodiment of the present invention, on the basis of the first embodiment, the outlet air duct 13 is arranged inside the casing, and the outlet air duct 13 extends towards the rear portion of the casing, so that the air outlet 12 is located at one end close to the air inlet 11, and thus the air outlet 12 and the air inlet 11 are located in the same area, thereby meeting different requirements. Similarly, the air deflector is arranged on the upper side surface of the air outlet 12 to ensure that the air outlet direction forms an included angle with the lower side wall
In order to meet different air suction requirements, when the air pipe indoor unit is of an air blowing type (the heat exchanger is arranged on the air blowing side of the fan), the air inlet of the air pipe indoor unit can be a rear air inlet arranged on the rear side wall of the shell, an upper air inlet arranged on the upper side wall of the shell or a lower air inlet arranged on the lower side wall of the shell. As shown in fig. 7, in a third embodiment of the present invention, compared with the first embodiment, the air duct indoor unit may also be provided with a rear air inlet, an upper air inlet, and a lower air inlet at the same time, and a corresponding cover plate is provided, when air return needs to be performed in a certain manner, the other air inlets are covered by the cover plate, for example, when air return needs to be performed, the rear air inlet and the lower air inlet are covered by the cover plate; when needing to be able to air inlet from top to bottom, the air inlet cover of back can be covered to satisfy multiple return air demand.
As shown in fig. 8, according to the fourth embodiment of the present invention, the heat exchanger 20 is disposed on the air intake side of the fan 40, the air intake opening 11 is disposed on the rear side wall of the casing 10, and the air outlet opening 12 is disposed on the lower side wall of the casing 10 at an end close to the front side wall of the casing 10. The air enters the inside of the air pipe indoor unit from the air inlet 11, exchanges heat with the heat exchanger 20, is sucked into the fan 41 and is blown out from the air outlet 12.
In this embodiment, the fan 40 is a centrifugal fan, the centrifugal fan includes a centrifugal fan volute 41, the centrifugal fan volute 41 has a diffuser 42, compared with an air blowing type (the heat exchanger 20 is disposed on the air outlet side of the fan 40), an air suction type (the heat exchanger 20 is disposed on the air inlet side of the fan 40) heat exchanger has relatively uniform air volume distribution in the length direction of the U-tube, and high heat exchange efficiency, so that the centrifugal fan is designed mainly for facilitating air outlet, when the diffuser 42 is disposed on the upper portion of the casing and faces the lower portion, the diffuser 42 of the centrifugal fan volute 41 directly penetrates through the front side wall of the casing 10 and inclines downward for air outlet, that is, in this embodiment, an included angle 852 between an outer contour line of the diffuser 42 and the upper side wall of the casing 10 is an included angle Φ between the air outlet direction and the upper side wall, that is, in this embodiment, in order to ensure that the air outlet is inclined downward and to ensure air outlet efficiency and heating comfort, a range limit of.
As shown in fig. 9, according to the fifth embodiment of the present invention, in order to meet the requirements of different air supply areas, on the basis of the fourth embodiment, an air outlet duct 13 may be disposed inside the housing, and the air outlet duct 13 extends toward the rear portion of the housing, so that the air outlet 12 is located near one end of the air inlet 11, and thus the air outlet and the air inlet are located in the same area, thereby meeting different requirements. Similarly, an air deflector is arranged on the upper side surface of the air outlet 12 to ensure that the air outlet direction and the lower side wall form an included angle phi.
In this embodiment, since the air flow blown out from the diffuser 42 of the fan 40 is limited by the outlet air duct, in order to ensure the outlet air efficiency and prevent the outlet air noise, the included angle α 2 between the outer contour line of the diffuser 42 and the upper sidewall of the casing 10 needs to be limited to a certain degree, and in this embodiment, the included angle α 2 between the outer contour line of the diffuser 42 and the upper sidewall of the casing 10 ranges from 0 ° to 80 °.
When the angle of α 2 is smaller, the air-out directly strikes the rear side plate of the unit, produces vibrations and noise, when α 2 is larger, the air-out speed is high and uneven, and the noise is large, with the air conditioner of one volume customization refrigeration capacity 3.5kw as the testing machine, the air conditioner unit adopts two-fold heat exchanger, each heat exchanger is 3 rows of phi 5 copper pipe, the total number of two rows of U pipe is 18U pipe, the included angle of the two-fold heat exchanger is 74 degrees, the unit size is 440 x 200 & 750, when the air conditioner runs at the highest gear, the test data of the noise is as the following table (angle unit: degree, noise unit: decibel):
TABLE I noise test data at different α 2 angles
| α2 | Noise (F) | Remarks for note |
| 10 | 43.1 | The side plate has larger vibration |
| 20 | 42.8 | |
| 50 | 41.7 | |
| 80 | 43.6 | |
| 90 | 45.3 | Uneven wind speed |
From the test results of table one above, it can be seen that the noise level decreases and then increases as the angle α 2 increases from 10 ° to 90 °, and that vibration is caused by direct impact of wind on the rear side panel when the angle of α is too small, and that the noise level is too high also due to high wind velocity blowing when the angle of α is too large.
As shown in fig. 10, according to the sixth embodiment of the present invention, in addition to the above fifth embodiment, the diffuser 42 of the centrifugal fan volute 41 of the centrifugal fan is disposed at the lower portion of the housing and faces the air outlet 12 at the rear end of the housing, and preferably, in order to improve the air outlet efficiency, the included angle α 3 between the outer contour line of the diffuser 42 and the lower side wall of the housing 10 is in the range of 0 ° to 90 °.
When the angle of α 3 is large, the outlet air directly impacts the lower side plate of the unit to generate vibration and noise, when α 3 is small, as shown in fig. 9, the thickness of the unit needs to be increased (because the unit needs to reserve the diffusion thickness larger than the size of the volute opening), taking the unit with customized refrigeration capacity of 3.5kw as an example, the unit adopts a double-fold heat exchanger, each heat exchanger is 3 rows of phi 5 copper pipes, the total number of the two rows of the phi 5 copper pipes is 18U pipes, and the included angle of the double-fold heat exchanger is 74 degrees, when the air conditioner unit operates at the highest gear, the test data of the generated noise of different α 3 s and the thickness of the unit are shown in the following table two (angle unit: degree, noise unit: decibel, size unit: millimeter):
second, noise and unit thickness dimension test data under different α 3 angles
From the experimental data in table two, it can be seen that the noise value is continuously increased in the process of increasing α 3 from 0 ° to 90 °, when the angle α 3 is too small, the thickness of the unit needs to be increased, and when the angle α 3 is too large, the vibration is large due to the direct impact of the outlet air on the lower side plate, and by comprehensively considering the noise and the size of the unit, it can be seen that the more preferable range of α 3 is 20 ° to 70 °.
In each of the above embodiments, the heat exchanger 20 may be a single-fold heat exchanger or a two-fold heat exchanger. Referring to fig. 11, when the heat exchanger 20 is a single-fold heat exchanger, the included angle θ 1 between the single-fold heat exchanger and the horizontal plane is 20 ° to 90 °, so that the unit size can be effectively reduced, because the number of U cross sections of the small unit is generally 12 to 24U tubes, the length of the cross section of the heat exchanger is a fixed value, when θ 1 is small, the depth of the cross section of the unit is large, and the heat exchanger is prone to unsmooth drainage, and when θ 1 is large, the height of the unit is relatively large. The unit with the refrigerating capacity of 3.5 kilowatts customized by one amount is used as a testing machine, a single-fold heat exchanger is adopted, the heat exchanger is 18 phi 5 copper U pipes, and under the condition of different theta 1 angles, the section sizes of the unit are shown in the following table three (angle unit: degree, size unit: millimeter):
table three: unit section size test data under different theta 1 angles
| θ1 | Unit cross-sectional dimension (depth. height)） |
| 20 | 450*250 |
| 50 | 390*250 |
| 90 | 245*280 |
From the data in the third table, it can be seen that the dimension of the unit in the depth direction can be effectively reduced (from 450mm to 245mm) when θ 1 is increased from 20 ° to 90 °.
When heat exchanger 20 is two heat exchangers, two heat exchangers are including the first heat transfer portion and the second heat transfer portion that are the setting of V font, the scope of the contained angle theta 2 between first heat transfer portion and the second heat transfer portion is 20 to 150, when theta 2 angle is less, heat exchanger air inlet region undersize, the unit amount of wind is littleer, when the angle increases certain angle, when the size that upper and lower heat exchanger distance is greater than centrifugal fan blade, the distance increases more, will increase the height dimension of unit, use the unit that the cold volume of a sum of money customization is 3.5 kilowatts as an example: the unit adopts two-fold heat exchangers, each heat exchanger is 3 rows of phi 5 copper pipes, the total number of the two rows of U pipes is 18U pipes, when the included angle theta 2 between the two-fold heat exchangers is changed, and when the unit runs at the highest gear, the air quantity test data and the unit thickness dimension are as shown in the following table four (angle unit: degree, air quantity unit: cubic meter per hour, dimension unit: millimeter):
table four: air volume and unit thickness dimension test data under different theta 2 angles
| θ2 | Air quantity | Thickness dimension of machine set |
| 20 | 523 | 200 |
| 74 | 614 | 200 |
| 90 | 637 | 235 |
From the data of the fourth table, it can be seen that when θ 2 is increased from 20 ° to 90 °, the air volume is increased and the thickness of the unit is also increased.
According to different design forms, the two-fold heat exchanger can be integrally bent and formed or formed by splicing two independent heat exchangers, and the bent parts of the first heat exchanging part and the second heat exchanging part can be in sharp-angle transition or arc transition.
In the air pipe indoor unit of the air suction type, because the air quantity distribution in the length direction of the U pipe of the heat exchanger 20 is relatively uniform, the heat exchanger 20 can be set to be a multi-fold heat exchanger which is larger than two folds, and the multi-fold heat exchanger can be roughly arc-shaped to surround a fan, so that each air receiving surface of the heat exchanger is uniformly air-received, the heat exchange efficiency is improved, and the unit size can be reduced.
In addition, in order to prevent the heating capacity of the heat exchanger from being insufficient, an electric heating device 50 is further arranged on one side, away from the air inlet 11, of the heat exchanger 20 of the air pipe indoor unit, so that when the system heats and the heating capacity of the heat exchanger is insufficient, air heated by the heat exchanger is heated by the electric heating device 50, the heating requirement is met, and the heating comfort is improved.
Preferably, as shown in fig. 11, when the air duct indoor unit is of a suction type (the heat exchanger is on the suction side of the fan), the air inlet of the air duct indoor unit may be a rear air inlet disposed on the rear side wall of the casing, or an upper air inlet disposed on the upper side wall of the casing. Also can set up simultaneously and go up air inlet and back air inlet, when needs go up the return air, use the apron to live the back air inlet cover, when needs back return air, use the apron to live the last air inlet cover can. When the upper air inlet and the rear air inlet are not covered, the air inlet on the air pipe indoor unit and the rear air inlet return air simultaneously.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
according to the air pipe indoor unit, the air outlet is arranged in a downward inclined mode, so that air is blown out obliquely downward, the problem that the air outlet direction of a common small household air pipe indoor unit can be downward only by installing the air pipe is effectively solved, and in addition, the angle between the air outlet direction and the lower side surface is limitedWithin the range of 30-90 degrees, thereby ensuring the air outlet efficiency and improving the heating comfort.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. The utility model provides an air pipe indoor unit, includes casing (10), casing (10) inside fixed heat exchanger (20) that is provided with, the lower part of heat exchanger (20) is provided with water collector (30), heat exchanger (20) are close to one side of the preceding lateral wall of casing (10) or be close to one side of the back lateral wall of casing (10) is provided with fan (40), be provided with on casing (10) and be located respectively air intake (11) and air outlet (12) of heat exchanger (20) both sides, a serial communication port, air outlet (12) downward sloping sets up, just the air-out direction of air outlet (12) with contained angle has between the downside of casing (10)Wherein,
2. the air duct indoor unit according to claim 1,
the upper side and/or the lower side of the air outlet (12) is/are provided with an air deflector, and the included angle between the air deflector and the upper side wall or the lower side wall of the shell (10) is
3. The air duct indoor unit according to claim 1,
the heat exchanger (20) is arranged on the air outlet side of the fan (40);
the air inlet (11) is arranged on the rear side wall of the shell (10);
the air outlet (12) is arranged on the front side wall of the shell (10), or an air outlet duct (13) extending towards the rear portion is arranged inside the shell (10) so that the air outlet (12) is close to the rear side wall of the shell (10).
4. The air duct indoor unit according to claim 3,
the fan (40) is a centrifugal fan, the centrifugal fan comprises a centrifugal fan volute (41), and the centrifugal fan volute (41) is provided with a diffuser (42);
the diffuser (42) is located at the upper part of the shell (10) and faces the heat exchanger (20), an included angle α 1 is formed between the outer contour line of the diffuser (42) and the upper side wall of the shell (10), and the included angle is more than or equal to 0 degree and less than or equal to α 1 degree and less than or equal to 45 degree.
5. The air duct indoor unit according to claim 1,
the heat exchanger (20) is arranged on the air inlet side of the fan (40);
the air inlet (11) is arranged on the rear side wall of the shell (10);
the air outlet (12) is arranged on the front side wall of the shell (10), or an air outlet duct (13) extending towards the rear portion is arranged inside the shell (10) so that the air outlet (12) is close to the rear side wall of the shell (10).
6. The air duct indoor unit according to claim 5,
the fan (40) is a centrifugal fan, the centrifugal fan comprises a centrifugal fan volute (41), and the centrifugal fan volute (41) is provided with a diffuser (42);
the diffuser (42) faces the lower portion of the shell (10), an included angle α 2 is formed between the outer contour line of the diffuser (42) and the upper side wall of the shell (10), wherein the included angle is more than or equal to 0 degree and less than or equal to α 2 degree and less than or equal to 80 degree, or an included angle α 3 is formed between the outer contour line of the diffuser (42) and the lower side wall of the shell (10), and the included angle is more than or equal to 0 degree and less than or equal to α 3 degree and less than or equal to 80 degree.
7. The air duct indoor unit according to claim 1,
the heat exchanger (20) is a single-fold heat exchanger, an included angle between the single-fold heat exchanger and a horizontal plane is theta 1, wherein the theta 1 is more than or equal to 20 degrees and less than or equal to 90 degrees.
8. The air duct indoor unit according to claim 1,
the heat exchanger (20) is a double-fold heat exchanger, the double-fold heat exchanger comprises a first heat exchanging part and a second heat exchanging part, an included angle theta 2 is formed between the first heat exchanging part and the second heat exchanging part, and theta 2 is larger than or equal to 20 degrees and smaller than or equal to 150 degrees.
9. The indoor unit of claim 8, wherein the two-fold heat exchanger is formed by bending integrally or formed by splicing two independent heat exchangers.
10. Air-duct indoor unit according to claim 1, characterized in that the heat exchanger (20) is a multifold heat exchanger with more than two folds.
11. Air-duct indoor unit according to claim 1, characterized in that the air inlet (11) is provided in at least one of the rear, upper and lower side walls of the casing (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470367.5A CN104566625B (en) | 2013-10-09 | 2013-10-09 | Air pipe indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470367.5A CN104566625B (en) | 2013-10-09 | 2013-10-09 | Air pipe indoor unit |
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| CN104566625A CN104566625A (en) | 2015-04-29 |
| CN104566625B true CN104566625B (en) | 2018-04-17 |
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| CN201310470367.5A Active CN104566625B (en) | 2013-10-09 | 2013-10-09 | Air pipe indoor unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807101B (en) * | 2015-05-21 | 2017-10-31 | 广东美的暖通设备有限公司 | Indoor set and the air conditioner with it |
| CN105066402B (en) * | 2015-09-16 | 2018-11-23 | 珠海格力电器股份有限公司 | Air outlet structure and ducted air conditioner |
| WO2017090671A1 (en) * | 2015-11-24 | 2017-06-01 | 三菱電機株式会社 | Air conditioner |
| CN105509149A (en) * | 2015-12-23 | 2016-04-20 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and control method thereof |
| WO2017206389A1 (en) * | 2016-05-30 | 2017-12-07 | 中山大洋电机股份有限公司 | Coil pipe fan structure |
| US10865798B2 (en) | 2016-05-30 | 2020-12-15 | Zhongshan Broad-Ocean Motor Co., Ltd. | Fan coil unit |
| CN105840532B (en) * | 2016-05-30 | 2018-02-06 | 中山大洋电机股份有限公司 | Coil pipe fan structure |
| CN106016464A (en) * | 2016-06-30 | 2016-10-12 | 珠海格力电器股份有限公司 | Air duct type indoor unit and air outlet duct structure thereof |
| CN109237625A (en) * | 2018-07-28 | 2019-01-18 | 宁波奥克斯电气股份有限公司 | A kind of air-cooled ducted air conditioner |
| CN110345557A (en) * | 2019-07-24 | 2019-10-18 | 珠海格力电器股份有限公司 | Fan coil and air conditioner with diffusion air duct |
| CN113757807B (en) * | 2020-06-01 | 2023-06-02 | 广东美的暖通设备有限公司 | Air duct type air conditioner |
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| CN104566625A (en) | 2015-04-29 |
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