CN110410876B - Air conditioner outdoor unit and air conditioner - Google Patents
Air conditioner outdoor unit and air conditioner Download PDFInfo
- Publication number
- CN110410876B CN110410876B CN201910596112.0A CN201910596112A CN110410876B CN 110410876 B CN110410876 B CN 110410876B CN 201910596112 A CN201910596112 A CN 201910596112A CN 110410876 B CN110410876 B CN 110410876B
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- air
- side wall
- heat exchanger
- outdoor unit
- flow fan
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- 238000009423 ventilation Methods 0.000 claims abstract description 36
- 238000005452 bending Methods 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
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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
- F24F13/20—Casings or covers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an air conditioner outdoor unit and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problems that an air inlet space at a machine position of an existing outdoor unit is narrow, air inlet is unsmooth, return air short circuit phenomenon occurs, and normal operation of the air conditioner is affected. The outdoor unit of the air conditioner comprises a shell, wherein the shell comprises a first side wall, an air inlet and an air outlet are formed in the first side wall, a cross-flow fan, a heat exchanger and an air duct assembly are arranged in the shell, the air duct assembly forms a ventilation air duct used for communicating the air inlet with the air outlet, the cross-flow fan is arranged in the ventilation air duct, and the heat exchanger is arranged between the cross-flow fan and the air inlet. The outdoor unit of the air conditioner is used for heat exchange of the air conditioner.
Description
Technical Field
The present invention relates to the field of air conditioners, and more particularly, to an air conditioner and an outdoor unit of the air conditioner.
Background
The traditional air conditioner outdoor unit adopts an axial flow fan, and the air duct structure is rear and side air inlet and front air outlet. In the existing buildings, the outdoor unit of the air conditioner is mostly placed at a reserved position outside the wall, generally a protruding stone plate, or a fixing frame for placing the outdoor unit is installed on the wall of the outdoor wall, and the fixing frame is arranged in a groove of the outer wall.
However, in the above-mentioned mounting manner of the outdoor unit, the rear of the outdoor unit is close to the wall, which results in a narrow space at the air inlet of the outdoor unit, and when the outdoor unit is in operation, the air inlet at the rear of the outdoor unit cannot smoothly intake air, resulting in a reduction in the air intake and thus in a reduction in the air output, so that the air supply distance of the air outlet is reduced, and therefore, the air output from the air outlet is closer to the outdoor unit, and may be sucked into the air inlet again, i.e., a return air short circuit phenomenon occurs, so that the high-temperature air flow after heat exchange is continuously heated, resulting in a high temperature of the outdoor unit of the air conditioner, and further causing the running failure of the air conditioner.
Disclosure of Invention
The embodiment of the invention provides an air conditioner outdoor unit and an air conditioner, which can ensure that the ventilation quantity is not influenced, ensure the normal operation of the air conditioner and avoid the occurrence of a return air short circuit phenomenon.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
the utility model provides an air conditioner off-premises station, includes the shell, the shell includes first lateral wall, be provided with air intake and air outlet on the first lateral wall, be provided with cross flow fan, heat exchanger and wind channel subassembly in the shell, wind channel subassembly constitutes and is used for the intercommunication the air intake with the ventilation air channel of air outlet, cross flow fan set up in the ventilation air channel, the heat exchanger set up in between cross flow fan and the air intake.
The embodiment of the invention provides an outdoor unit of an air conditioner, which adopts a through-flow fan, because the through-flow fan is of a cylindrical structure, air flow enters the interior of the fan from blades on one side of the through-flow fan and is discharged from blades on the other side of the through-flow fan, and the embodiment of the invention is based on the characteristics of the through-flow fan, the ventilation structure of the outdoor unit is changed into a single-sided air inlet and outlet structure, namely, an air inlet and an air outlet are both arranged on a first side wall of a shell, the through-flow fan is arranged in the shell, the axial lead of the through-flow fan is arranged in parallel with the first side wall, a ventilation air duct formed by an air duct component limits the flow direction of air outlet of the through-flow fan, so that air enters the shell from the air inlet, and is discharged from blades on one side of the ventilation air duct into the interior of the fan, and is discharged from blades on the other side of the through-flow fan, and the discharged air is blown to the exterior of the outdoor unit along the ventilation air duct, so that the air inlet and the air outlet are arranged on the same side wall, and the first side wall is arranged on the outer side, and the wall is far away from the wall when the air inlet is arranged, so that the air inlet can be ensured to smoothly, and the air inlet can be ensured to run smoothly, and the air return phenomenon is avoided.
Further, the air duct assembly comprises a volute part and a volute tongue, the volute part is arranged along the circumferential direction of the cross-flow fan and divides the interior of the shell into a first accommodating cavity and a second accommodating cavity, the cross-flow fan, the heat exchanger and the volute tongue are arranged in the first accommodating cavity, and a press assembly is arranged in the second accommodating cavity;
the volute tongue is arranged on the first side wall and between the air inlet and the air outlet, the volute tongue extends from the first side wall to the periphery of the through-flow fan, and the volute tongue and the volute form a ventilation air channel communicated with the air inlet and the air outlet.
Further, the spiral case portion includes first air baffle, circular arc board and the second air baffle that connect gradually, the circular arc opening of circular arc board is towards the cross flow fan, the circular arc board is followed the circumference extension of cross flow fan, the cross flow fan set up in the circular arc board with between the spiral case tongue.
Further, the housing includes a second side wall, a third side wall and a fourth side wall, the second side wall is disposed opposite to the first side wall, the third side wall and the fourth side wall are disposed between the first side wall and the second side wall and are disposed parallel to an axis line of the through-flow fan, the third side wall, the first side wall, the second side wall and the volute portion form the first accommodating cavity, and the fourth side wall is disposed opposite to the third side wall;
the volute tongue comprises a first side surface and a second side surface, the first side surface is opposite to the second air baffle, and the second side surface is opposite to the first side surface;
the included angle formed by the first side surface and the first side wall is a first outlet included angle alpha 1 The included angle opening of the first outlet included angle faces the third side wall and meets the following conditions: alpha is less than or equal to 40 DEG 1 ≤90°；
The included angle formed by the second air baffle plate and the first side wall is a second outlet included angle alpha 2 The included angle opening of the second outlet included angle faces the fourth side wall and meets the following conditions: alpha is less than or equal to 90 DEG 2 ≤140°。
Further, the included angle formed by the first air baffle plate and the plane parallel to the first side wall is a first inlet included angle alpha 3 The included angle opening of the first inlet included angle faces the third side wall and meets the following conditions: alpha is less than or equal to 0 DEG 3 ≤90°；
The included angle formed by the second side surface and the plane parallel to the first side wall is a second inlet included angle alpha 4 The included angle opening of the second inlet included angle faces the air inlet and meets the following conditions: alpha is less than or equal to 70 DEG 4 ≤150°。
Further, the diameter D of the cross-flow fan satisfies: d is more than or equal to 150mm and less than or equal to 350mm.
Further, the heat exchanger is a flat plate heat exchanger, and the flat plate heat exchanger is parallel to the first side wall or forms an included angle with the first side wall;
or the heat exchanger is an L-shaped heat exchanger with an L-shaped cross section, and an included angle opening of an L-shaped structure of the L-shaped heat exchanger is arranged opposite to the cross-flow fan;
or the heat exchanger is a heat exchanger with a U-shaped section, and a U-shaped structure opening of the heat exchanger with the U-shaped section is opposite to the cross-flow fan;
or the heat exchanger is a heat exchanger with a multi-section bending section, and an opening of the bending section of the heat exchanger with the multi-section bending section is opposite to the cross-flow fan.
Further, the heat exchanger is provided with at least two groups.
Further, the air inlet is formed in the second side wall and/or the third accommodating cavity.
Further, two cross flow fans are provided, each cross flow fan is provided with a heat exchanger and an air duct assembly correspondingly, one cross flow fan is provided with one air outlet and one air inlet correspondingly on the first side wall, and the first side wall is provided with the other air outlet and the other air inlet correspondingly to the other cross flow fan.
Further, the two air outlets are arranged between the two air inlets.
Further, the two air inlets are arranged between the two air outlets.
The embodiment of the invention also provides an air conditioner, which comprises an indoor unit and the air conditioner outdoor unit according to any technical scheme, wherein the outdoor unit is connected with the indoor unit through a connecting pipe.
According to the air conditioner provided by the embodiment of the invention, the outdoor unit adopts the cross-flow fan, the ventilation structure is changed into a single-sided air inlet and outlet structure, namely, the air inlet and the air outlet are positioned on the same side wall, so that the space at the air inlet is increased, and the air inlet is ensured to be smooth, therefore, the air quantity blown out from the air outlet after heat exchange is increased, the pressure at the air outlet is increased, and the air supply distance is increased, so that the air blown out from the air outlet can be sent to a position far away from the outdoor unit, the air blown out from the air outlet is prevented from being sucked again by the air inlet, the circulating heating is realized, the occurrence of a return air short circuit phenomenon is effectively prevented, and the outdoor unit is enabled to normally operate, thereby improving the heat exchange efficiency of the outdoor unit and ensuring the use effect of the air conditioner.
Drawings
Fig. 1 is a schematic view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a front view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a first perspective cross-sectional view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 5 is a second perspective sectional view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic view of a first structure of a heat exchanger with an L-shaped cross section in an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 7 is a schematic view of a second structure of a heat exchanger with an L-shaped cross section in an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 8 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention, in which a flat heat exchanger is used and the flat heat exchanger is parallel to a first side wall;
fig. 9 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention, in which a flat heat exchanger is used and forms an included angle with a first side wall;
fig. 10 is a schematic view of a heat exchanger with a multi-section bent structure used in an outdoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 11 is a schematic view of an outdoor unit of an air conditioner using three-sided air intake according to an embodiment of the present invention;
fig. 12 is a schematic view of a structure of an outdoor unit of an air conditioner using two-sided air intake according to an embodiment of the present invention;
fig. 13 is a schematic diagram of two groups of heat exchangers in an outdoor unit of an air conditioner according to an embodiment of the present invention, wherein the two groups of heat exchangers are formed by a flat plate heat exchanger and a heat exchanger with an L-shaped cross section;
fig. 14 is a schematic view illustrating a structure of an outdoor unit of an air conditioner using two sets of plate heat exchangers according to an embodiment of the present invention;
FIG. 15 is a schematic view of an outdoor unit of an air conditioner according to an embodiment of the present invention, wherein two sets of cross-flow fans and two sets of heat exchangers with L-shaped cross sections are used, and two air outlets are disposed between two air inlets;
fig. 16 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention, in which two sets of cross-flow fans and two sets of heat exchangers with L-shaped cross sections are used, and two air inlets are disposed between two air outlets;
FIG. 17 is a schematic diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention, in which two sets of cross-flow fans and a set of plate heat exchangers are used and two air inlets are disposed between two air outlets;
fig. 18 is a schematic diagram illustrating structural dimension marking of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Reference numerals: 1. a housing; 2. an air inlet; 3. an air outlet; 4. a cross-flow fan; 5. a heat exchanger; 6. a first air barrier; 7. a first accommodation chamber; 8. a second accommodation chamber; 9. a volute section; 10. a volute tongue; 11. a ventilation duct; 12. a first sidewall; 13. a second sidewall; 14. a third sidewall; 15. a fourth sidewall; 16. an arc plate; 17. a second air barrier; 18. a first side; 19. a second side.
Detailed Description
An outdoor unit of an air conditioner and an air conditioner according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", and "lower" are used in conjunction with one another,
The references to orientation or positional relationships of "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements 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 terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An outdoor unit of an air conditioner, as shown in fig. 1-5, comprises a shell 1, wherein the shell 1 comprises a first side wall 12, an air inlet 2 and an air outlet 3 are arranged on the first side wall 12, a cross flow fan 4, a heat exchanger 5 and an air duct component are arranged in the shell 1, the air duct component forms a ventilation air duct 11 used for communicating the air inlet 2 and the air outlet 3, the cross flow fan 4 is arranged in the ventilation air duct 11, and the heat exchanger 5 is arranged between the cross flow fan 4 and the air inlet 2.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the through-flow fan 4 is adopted, because the through-flow fan 4 is of a cylindrical structure, air flow enters the interior of the fan from the blades at one side of the through-flow fan 4 and is discharged from the blades at the other side of the through-flow fan 4, the ventilation structure of the air conditioner outdoor unit is changed into a single-sided air inlet and outlet structure based on the characteristics of the through-flow fan 4, namely, the air inlet 2 and the air outlet 3 are both arranged on the first side wall 12 of the shell 1, the through-flow fan 4 is arranged in the shell 1, the axial lead of the through-flow fan 4 is arranged in parallel with the first side wall 12, the ventilation air duct 11 formed by the air duct assembly limits the flow direction of air outlet of the through-flow fan 4, namely, the air enters the shell 1 from the air inlet 2, the blades at one side of the inlet of the through-flow fan 4 enter the fan, and are discharged from the blades at the other side of the through-flow fan 4, and the discharged air blades at the other side of the through-flow fan 4 are blown to the outside of the air outlet 3 along the ventilation air duct 11, so that the air outlet 3 is discharged outside the air conditioner outdoor unit, and the air is arranged on the same side wall, and the through-flow fan is arranged on the first side wall 12, and the first side wall 12 is arranged in parallel with the axial lead when the air inlet is arranged, and the air inlet side is far from the outside, and the air conditioner.
When the air conditioner is used, as shown in fig. 2, the first side wall 12 is positioned at the outer side and far away from the wall, so that the space at the air inlet 2 and the air outlet 3 is not limited, the air inlet 2 can smoothly enter the air, the air inlet quantity is increased, and as shown in fig. 3, after heat exchange by the heat exchanger 5, the air is sent to the air outlet 3 along the ventilation air duct 11, and the air outlet 3 is determined after the size of the ventilation air duct 11 is determined, on the premise that the size of the air outlet 3 is determined, the larger the air inlet quantity is, the larger the pressure at the air outlet 3 is, the air supply distance is, so that the air blown out by the air outlet 3 is blown to a position far away from the outdoor unit, the air blown out by the air outlet 3 is prevented from being sucked into the air inlet 2 again, and the high-temperature air flow after heat exchange is prevented from being circularly heated, so that the occurrence of a return air short circuit phenomenon is effectively prevented, and the normal operation of the outdoor unit is ensured.
The air duct assembly comprises a volute section 9 and a volute tongue 10, as shown in fig. 1-5, the volute section 9 is arranged along the circumferential direction of the through-flow fan 4 and divides the interior of the shell 1 into a first accommodating cavity 7 and a second accommodating cavity 8, the through-flow fan 4, the heat exchanger 5 and the volute tongue 10 are arranged in the first accommodating cavity 7, and a press assembly is arranged in the second accommodating cavity 8; the volute tongue 10 is disposed on the first side wall 12 and between the air inlet 2 and the air outlet 3, the volute tongue 10 extends from the first side wall 12 to the periphery of the cross-flow fan 4, and the volute tongue 10 and the volute 9 form the ventilation duct 11 communicating the air inlet 2 and the air outlet 3. In the embodiment of the invention, the second accommodating cavity 8 for accommodating the press assembly is formed at one side of the volute part 9, the first accommodating cavity 7 for accommodating the cross-flow fan 4, the heat exchanger 5 and the volute part 10 is formed at the other side, and the cross-flow fan 4 and the heat exchanger 5 are arranged in the first accommodating cavity 7, so that on one hand, high-temperature air flow after heat exchange enters a placement area of the press assembly, the temperature of the press assembly is increased, the normal operation of the press assembly is influenced, and on the other hand, air entering through the air inlet 2 enters the first accommodating cavity 7 after heat exchange, reaches the air outlet 3 along the ventilation air duct 11 and is sent out through the air outlet 3, and the ventilation smoothness inside the first accommodating cavity 7 is ensured.
Preferably, in the embodiment of the present invention, the second accommodating chamber 8 may be disposed at the rear side of the through-flow fan 4, that is, the press assembly is disposed near the back of the outdoor unit, and the outdoor unit with such a structure is entirely narrower in the transverse direction and thicker in the longitudinal direction, and may be placed in a narrower space formed between two walls, as shown in fig. 7; the second accommodating chamber 8 may be disposed on the side of the cross-flow fan 4, that is, the press assembly and the cross-flow fan 4 are transversely disposed, and the outdoor unit with such a structure is transversely cross-wide and longitudinally thin, and may be placed close to the wall, as shown in fig. 6. The two structures can be optimally designed according to different installation environments, so that the outdoor unit is suitable for different house structures and can be guaranteed to normally operate.
It should be noted that the press assembly in the embodiment of the present invention is a system assembly in an outdoor unit of an air conditioner, which is a common prior art, and thus will not be described in detail herein.
In order to form the ventilation duct 11 for restricting the air outlet direction between the volute section 9 and the volute tongue 10, as shown in fig. 3 and 4, the volute section 9 includes a first air baffle 6, an arc plate 16, and a second air baffle 17 sequentially connected, preferably, the first air baffle 6 is connected to a side wall disposed opposite to the first side wall 12, the second air baffle 17 is connected to the first side wall 12, an arc opening of the arc plate 16 faces the cross flow fan 4, the arc plate 16 extends along the circumferential direction of the cross flow fan 4, and the cross flow fan 4 is disposed between the arc plate 16 and the volute tongue 10. The first air baffle 6 and the side surface of the volute tongue 10, which is close to the air inlet 2, jointly form an inlet of the ventilation air duct 11, the arc plate 16 extends along the circumferential direction of the through-flow fan 4, the second air baffle 17 and the side surface of the volute tongue 10, which is close to the air outlet 3, form an outlet of the ventilation air duct 11 and are communicated with the air outlet 3, when the air enters the through-flow fan 4 after heat exchange of the heat exchanger 5, the air enters the inside of the ventilation air duct 11 and is discharged from the other side of the through-flow fan 4, the discharged air continuously flows towards the air outlet 3 along the direction limited by the arc plate 16, and due to smooth transition of the arc plate 16, the instantaneous steering angle of the air, which is impacted on the arc plate 16, is reduced, reduces the pressure loss of the air, can ensure the air outlet speed, and the air continuously flows to the outlet of the ventilation air duct 11 along the direction limited by the arc plate 16 after the air steering, and is blown out from the air outlet 3.
Further, the housing 1 includes a second side wall 13, a third side wall 14, and a fourth side wall 15, as shown in fig. 4 and 5, the second side wall 13 is disposed opposite to the first side wall 12, the third side wall 14 and the fourth side wall 15 are disposed between the first side wall 12 and the second side wall 13 and are disposed parallel to the axis line of the cross-flow fan 4, the third side wall 14, the first side wall 12, the second side wall 13, and the volute 9 form the first accommodating chamber 7, and the fourth side wall 15 is disposed opposite to the third side wall 14; as shown in fig. 18, the tongue portion 10 includes a first side 18 and a second side 19, the first side 18 being disposed opposite the second air baffle 17, and the second side 19 being disposed opposite the first side 18.
Since the outlet size of the ventilation duct 11 limits the air output, when the outlet is too small, the air output is not smooth, and in the embodiment of the present invention, the included angle formed by the first side surface 18 and the first side wall 12 is the first outlet included angle α 1 The first outlet included angle is open toward the third sidewall 14, and satisfies: alpha is less than or equal to 40 DEG 1 Less than or equal to 90 degrees; the included angle formed by the second air baffle 17 and the first side wall 12 is a second outlet included angle alpha 2 The second outlet angle is opened toward the fourth side wall 15, and satisfies: alpha is less than or equal to 90 DEG 2 Not more than 140 degrees. As shown in fig. 18, when the first outlet included angle is greater than 90 ° and the second outlet included angle is greater than 140 °, the outlet of the ventilation duct 11 is too large, the flow channel diffusion effect is large, and flow separation is generated, which increases the noise of the outdoor unit, reduces the capacity, and affects the performance of the outdoor unit, and when the first outlet included angle is less than 40 ° and the second outlet included angle is less than 90 °, the first side 18 and the second air baffle 17 both form an inclined plane, so that a contracted flow is formed, which increases the outlet wind speed, increases the noise, reduces the air quantity, and affects the performance of the outdoor unit. Through tests, the effect is optimal when the first outlet included angle and the second outlet included angle are in the range.
In the embodiment of the present invention, the first air baffle 6 and the second side 19 form an inlet of the ventilation air duct 11, and in order to enable the wind to smoothly enter the ventilation air duct 11, in the embodiment of the present invention, the first air baffle 6 forms an included angle with a plane parallel to the first side wall 12For a first inlet angle alpha 3 The first inlet angle is open toward the third sidewall 14 and satisfies: alpha is less than or equal to 0 DEG 3 Less than or equal to 90 degrees; the second side 19 forms a second inlet angle alpha with a plane parallel to the first side wall 12 4 The included angle opening of the second inlet included angle faces the air inlet 2, and the following conditions are satisfied: alpha is less than or equal to 70 DEG 4 Less than or equal to 150 degrees. As shown in fig. 18, when the first inlet included angle is greater than 90 °, a concave area is formed between the first air baffle 6 and the first side wall 12, part of wind can enter the area to form vortex, noise is increased, and when the second inlet included angle is greater than 150 °, the space of the volute tongue 10 is severely reduced; when the air inlet area is smaller than 70 degrees, the effective length of the heat exchanger is reduced, and meanwhile, the air inlet area is reduced, so that the performance of the outdoor unit is influenced. Through testing, the first inlet included angle and the second inlet included angle are in the range, and the effect is optimal.
According to the cross-flow fan 4 provided by the embodiment of the invention, the air inlet quantity is influenced by the too small diameter, the overall size of the outdoor unit is increased due to the too large diameter, and the mounting is inconvenient, and the diameter D of the cross-flow fan 4, as shown in fig. 18, meets the following requirements: d is more than or equal to 150mm and less than or equal to 350mm, and the effect is optimal.
In the embodiment of the present invention, the heat exchanger 5 is a flat plate heat exchanger 5, the flat plate heat exchanger 5 is parallel to the first side wall 12, or an included angle is formed between the flat plate heat exchanger 5 and the first side wall 12, as shown in fig. 8 and 9; the structure that forms the contained angle between dull and stereotyped heat exchanger 5 and the first side wall 12 promptly along the inclined plane installation, and this structure has increased heat exchanger 5 length, can increase heat exchanger 5 heat transfer area, compares in being on a parallel with the structure of first side wall 12, and the heat transfer effect is better. And the flat plate heat exchanger 5 has simple structure and convenient installation, and is suitable for outdoor units with various structures.
In the embodiment of the present invention, the heat exchanger 5 is a heat exchanger 5 with a multi-section bending, and the opening of the bending section of the heat exchanger 5 with a multi-section bending is opposite to the cross-flow fan 4, as shown in fig. 10, the number of bending sections and bending angles of the multi-section bending heat exchanger 5 are all selected according to the size of the inner space of the casing 1 of the outdoor unit, so that the heat exchanger can be better applied to the outdoor units with different structures.
In the embodiment of the present invention, the heat exchanger 5 is an L-shaped heat exchanger 5, and an included angle opening of an L-shaped structure of the L-shaped heat exchanger 5 is disposed opposite to the cross-flow fan 4, as shown in fig. 6 and 7; the included angle of the L-shaped structure of the L-shaped heat exchanger is preferably 45-90 degrees, the heat exchange area of the heat exchanger 5 with the L-shaped section is increased, and the heat exchange effect of the outdoor unit can be improved.
In the embodiment of the present invention, the heat exchanger 5 is a heat exchanger 5 with a U-shaped cross section, and the opening of the U-shaped structure of the heat exchanger 5 with a U-shaped cross section is opposite to the cross-flow fan 4, as shown in fig. 11. The heat exchanger 5 with the U-shaped section further increases the heat exchange area and further improves the heat exchange effect of the outdoor unit.
In order to further improve the heat exchange efficiency, the heat exchanger 5 provided in the embodiment of the present invention is provided with at least two groups, as shown in fig. 13 and 14. The heat exchangers 5 can be provided with a plurality of groups, one end of each heat exchanger 5 is connected with the inner wall of the shell 1, the other end of each heat exchanger 5 can be connected with the volute tongue 10, and also can be connected with the inner wall of the first side wall 12, and the air sucked from the air inlet 2 exchanges heat for a plurality of times through the heat exchangers 5, so that the heat exchange efficiency of the outdoor unit is further improved.
In order to reduce noise generated during the operation of the outdoor unit, the air inlet 2 is provided on the second side wall 13 and/or the third side wall 14 according to the embodiment of the present invention, as shown in fig. 4, 5, 11, and 12. When the multi-surface air inlet structure is adopted, the heat exchanger 5 with the L-shaped section and the heat exchanger 5 with the U-shaped section are preferably used, the air inlet is increased due to the increase of the air inlet, the heat exchange area of the heat exchanger 5 is increased, and the heat exchange efficiency is further improved.
Specifically, the two side walls are parallel to the axial line of the through-flow fan 4, so that the air inlet 2 can be formed on one of the second side wall 13 and the third side wall 14 or the air inlet 2 can be formed on both sides, that is, the structure of two-side air inlet or three-side air inlet is provided, as shown in fig. 11 and 12, when the rotation speed of the through-flow fan 4 is unchanged, the air inlet quantity of the outdoor unit can be increased, that is, the heat exchange efficiency is improved, therefore, on the premise that the heat exchange efficiency does not need to be improved, the rotation speed of the through-flow fan 4 can be reduced to ensure the same heat exchange efficiency, and the rotation speed of the through-flow fan 4 is reduced, so that the noise generated by the outdoor unit can be reduced.
In the outdoor unit of the air conditioner provided by the embodiment of the invention, a plurality of through-flow fans 4 can be provided, each through-flow fan 4 is correspondingly provided with a heat exchanger 5, and an air inlet 2 and an air outlet 3 are correspondingly provided on a first side wall 12, but the through-flow fans 4 are installed in a plurality, so that the heat exchange efficiency can be improved, but the overall size of the shell 1 is correspondingly increased, and the problem of the outdoor unit installation is solved, therefore, in the embodiment of the invention, two through-flow fans 4 are preferably provided, and as shown in fig. 15, 16 and 17, each through-flow fan 4 is correspondingly provided with the heat exchanger 5 and the air duct assembly, and the air outlet 3 and the air inlet 2 are correspondingly provided on the first side wall 12 corresponding to each through-flow fan 4. By arranging two through-flow fans 4, good heat exchange efficiency can be ensured, and inconvenience in installation caused by oversized shell 1 can be avoided.
When two cross-flow fans 4 are used. The two air outlets 3 can be arranged between the two air inlets 2, as shown in fig. 15, as the two air outlets 3 are provided with the volute part 9, that is, the two ventilation air channels 11 are not communicated with each other, the two air flows can be prevented from forming turbulent flow when flowing in the two air channels, and thus, the smooth outflow of the air flows is ensured.
The heat exchanger 5 in the structure can adopt a flat plate heat exchanger 5, a heat exchanger 5 with a multi-section bending structure, a heat exchanger 5 with an L-shaped section or a heat exchanger 5 with a U-shaped section, the two heat exchangers 5 have the same structure and are symmetrically arranged in the first accommodating cavities 7 at two sides of the shell 1, and the two first accommodating cavities 7 can also adopt the multi-surface air inlet structure so as to increase heat exchange efficiency or reduce noise generated by an outdoor unit.
If two air inlets 2 are disposed between two air outlets 3, as shown in fig. 16, at this time, two first accommodating chambers 7 are communicated, and air flows entering from two air inlets 2 flow to two ventilation air channels 11 on two sides in the first accommodating chambers 7 respectively, so that air pressure in the first accommodating chambers 7 is more balanced, and outdoor unit shake caused by unbalanced air pressure in the two first accommodating chambers 7 is avoided.
The two first accommodating chambers 7 in the above structure are communicated to form an accommodating chamber, and the two heat exchangers 5 with the same structure are symmetrically arranged in the accommodating chamber, and when the heat exchanger 5 with the L-shaped or U-shaped cross section is adopted, the included angle opening or the U-shaped opening of the L-shaped structure is respectively opposite to the corresponding through-flow fan 4, as shown in fig. 16. When the flat plate heat exchanger 5 is used, the two flat plate heat exchangers 5 may form an angle with the first side wall 12 and be symmetrically disposed in the accommodating chambers, but since the two first accommodating chambers 7 are communicated with each other, it is preferable to use one flat plate heat exchanger 5 for cost saving, and the flat plate heat exchanger 5 is disposed in parallel with the first side wall 12 and covers the two air inlets 2, as shown in fig. 17.
Furthermore, for the structure that the two air inlets 2 are arranged between the two air outlets 3, since the two air inlets 2 are adjacently arranged, the two air inlets 2 can be arranged as a large air inlet 2, and the air inlet 2 corresponds to the two first accommodating cavities 7 which are mutually communicated, so that the air inlet smoothness of the air inlet 2 is further improved.
Furthermore, in the form of a mechanism with two cross-flow fans 4, multiple groups of heat exchangers 5 corresponding to each cross-flow fan 4 can be arranged, so that different heat exchange requirements can be met.
The embodiment of the invention also provides an air conditioner, which comprises an indoor unit and the air conditioner outdoor unit according to any technical scheme, wherein the outdoor unit is connected with the indoor unit through a connecting pipe.
The air conditioner provided by the embodiment of the invention has the advantages that the used air conditioner outdoor unit is the same as the air conditioner outdoor unit in the scheme, so that the air conditioner outdoor unit and the air conditioner outdoor unit can solve the same technical problems and achieve the same technical effects, namely, the air inlet 2 can be ensured to be smoothly fed, the phenomenon of air return short circuit is avoided, and the normal operation of the air conditioner outdoor unit is ensured.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (13)
1. The outdoor unit of the air conditioner is characterized by comprising a shell, wherein the shell comprises a first side wall, an air inlet and an air outlet are formed in the first side wall, a through-flow fan, a heat exchanger and an air duct assembly are arranged in the shell, the air duct assembly forms a ventilation air duct used for communicating the air inlet and the air outlet, the through-flow fan is arranged in the ventilation air duct, and the heat exchanger is arranged between the through-flow fan and the air inlet;
the air duct assembly comprises a volute part and a volute tongue, the volute part is arranged along the circumferential direction of the through-flow fan and comprises a first air baffle plate, an arc plate and a second air baffle plate which are sequentially connected, and the second air baffle plate is connected to the first side wall; the volute tongue is arranged on the first side wall and between the air inlet and the air outlet;
the shell comprises a second side wall, a third side wall and a fourth side wall, the second side wall is arranged opposite to the first side wall, the second side wall is connected with the first air baffle plate, and the third side wall and the fourth side wall are arranged between the first side wall and the second side wall and are parallel to the axial lead of the cross-flow fan;
the volute tongue comprises a first side surface and a second side surface, the first side surface is opposite to the second air baffle, and the second side surface is opposite to the first side surface;
the contained angle that first side and first side wall formed is first export contained angle α1, the contained angle opening orientation of first export contained angle the third side wall to satisfy: alpha 1 is more than or equal to 40 degrees and less than or equal to 90 degrees;
the contained angle that second air barrier and first lateral wall formed is second export contained angle alpha 2, the contained angle opening orientation of second export contained angle the fourth lateral wall to satisfy: alpha 2 is more than or equal to 90 degrees and less than or equal to 140 degrees.
2. The outdoor unit of claim 1, wherein the housing includes a first receiving chamber and a second receiving chamber, the first receiving chamber having the cross-flow fan, the heat exchanger and the scroll tongue disposed therein, the second receiving chamber having a press assembly disposed therein;
the volute tongue extends from the first side wall to the periphery of the through-flow fan, and the volute tongue and the volute part form the ventilation air duct communicated with the air inlet and the air outlet.
3. The outdoor unit of claim 2, wherein the circular arc opening of the circular arc plate is directed to the cross flow fan, the circular arc plate extends along a circumferential direction of the cross flow fan, and the cross flow fan is disposed between the circular arc plate and the scroll tongue.
4. The outdoor unit of claim 3, wherein the third side wall, the first side wall, the second side wall, and the scroll portion form the first receiving chamber, and the fourth side wall is disposed opposite to the third side wall.
5. The outdoor unit of claim 4, wherein the first air-blocking plate forms a first inlet angle α with a plane parallel to the first side wall 3 The included angle opening of the first inlet included angle faces the third side wall and meets the following conditions: alpha is less than or equal to 0 DEG 3 ≤90°；
The included angle formed by the second side surface and the plane parallel to the first side wall is a second inlet included angle alpha 4 The included angle opening of the second inlet included angle faces the air inlet and meets the following conditions: alpha is less than or equal to 70 DEG 4 ≤150°。
6. The outdoor unit of claim 5, wherein the diameter D of the cross-flow fan satisfies: d is more than or equal to 150mm and less than or equal to 350mm.
7. The outdoor unit of any one of claims 1-6, wherein the heat exchanger is a flat plate heat exchanger, the flat plate heat exchanger is parallel to the first side wall, or an included angle is formed between the flat plate heat exchanger and the first side wall;
or the heat exchanger is an L-shaped heat exchanger with an L-shaped cross section, and an included angle opening of an L-shaped structure of the L-shaped heat exchanger is arranged opposite to the cross-flow fan;
or the heat exchanger is a heat exchanger with a U-shaped section, and a U-shaped structure opening of the heat exchanger with the U-shaped section is opposite to the cross-flow fan;
or the heat exchanger is a heat exchanger with a multi-section bending section, and an opening of the bending section of the heat exchanger with the multi-section bending section is opposite to the cross-flow fan.
8. An outdoor unit of any one of claims 1 to 6, wherein said heat exchangers are provided in at least two groups.
9. An outdoor unit of any one of claims 4 to 6, wherein said air inlet is formed in said second side wall and/or said third side wall.
10. The outdoor unit of any one of claims 1 to 6, wherein two cross-flow fans are provided, the heat exchanger and the air duct assembly are provided at each of the cross-flow fans, one air outlet and one air inlet are provided at each of the first side walls corresponding to one of the cross-flow fans, and the other air outlet and the other air inlet are provided at each of the first side walls corresponding to the other cross-flow fan.
11. The outdoor unit of claim 10, wherein two of said air outlets are disposed between two of said air inlets.
12. The outdoor unit of claim 10, wherein two of the air inlets are disposed between two of the air outlets.
13. An air conditioner, characterized by comprising an indoor unit and an air conditioner outdoor unit according to any one of claims 1 to 12, wherein the indoor unit and the air conditioner outdoor unit are connected by a connecting pipe.
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| CN201910596112.0A CN110410876B (en) | 2019-07-03 | 2019-07-03 | Air conditioner outdoor unit and air conditioner |
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| CN201910596112.0A CN110410876B (en) | 2019-07-03 | 2019-07-03 | Air conditioner outdoor unit and air conditioner |
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| CN110410876B true CN110410876B (en) | 2024-04-02 |
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| CN110779152B (en) * | 2019-11-15 | 2021-12-21 | 宁波奥克斯电气股份有限公司 | Air conditioner return air control method and device, air conditioner and storage medium |
| CN113465047A (en) * | 2020-03-31 | 2021-10-01 | 青岛海信日立空调***有限公司 | Outdoor unit of air conditioner |
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