CN109405089B - Lower air supply air conditioner - Google Patents

Lower air supply air conditioner Download PDF

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Publication number
CN109405089B
CN109405089B CN201811119868.8A CN201811119868A CN109405089B CN 109405089 B CN109405089 B CN 109405089B CN 201811119868 A CN201811119868 A CN 201811119868A CN 109405089 B CN109405089 B CN 109405089B
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China
Prior art keywords
heat exchanger
air inlet
cabinet
air
door panel
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CN201811119868.8A
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Chinese (zh)
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CN109405089A (en
Inventor
胡荣国
张健辉
曹会龙
欧阳超波
赵大勇
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Shenzhen Iteaq Network Power Technology Co Ltd
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Shenzhen Iteaq Network Power Technology Co Ltd
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Publication of CN109405089A publication Critical patent/CN109405089A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters

Abstract

The invention discloses a lower air supply air conditioner, which comprises a cabinet and a heat exchanger assembly arranged in the cabinet; the top of the cabinet is provided with a first air inlet part communicated with the heat exchanger assembly, the top of the heat exchanger assembly is close to the first air inlet part, the top of the heat exchanger assembly is provided with an inclined plane, and an included angle is formed between the inclined plane and the first air inlet part; and a second air inlet part is arranged on the front door plate of the cabinet and communicated with the heat exchanger assembly. According to the lower air supply air conditioner, the included angle between the top of the heat exchanger assembly and the first air inlet part at the top is arranged, so that top inlet air can fully pass through the filter screen at the top, the air inlet area is increased, and the wind resistance is reduced; the arrangement of the air inlet part on the front door panel of the cabinet further increases the air inlet area of the cabinet, increases the air inlet volume, improves the refrigeration effect, improves the performance of the unit and reduces the power consumption capability of the unit.

Description

Lower air supply air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a lower air supply air conditioner.
Background
The arrangement direction of the heat exchanger in the general air conditioner has various modes, the design degree is different, and the arrangement of the filter screen has various. Under the condition that the size of a product unit is limited, when the heat exchanger assembly adopts a front heat exchanger and a rear heat exchanger which are arranged in the air conditioning unit in an A shape, the top of the common heat exchanger assembly can adopt a horizontal design to reduce the overall height of the heat exchangers. When most units were put and are installed in on-the-spot computer lab, back door and side door generally all can probably can not dismantle because the computer lab space is limited, in addition the unit top probably can increase under tuber pipe or the highly restricted condition, the filter screen of back heat exchanger generally can adopt the top level to place, with the heat exchanger parallel placement of common top level design to can sacrifice very big partly air inlet area, the resistance increase.
In order to increase the air inlet area of the filter screen, the thickness of the filter screen is usually increased, however, the height space layout of the unit is affected by the method, the wind resistance is increased, and the overall energy efficiency of the unit is reduced.
Disclosure of Invention
The invention aims to provide a lower air supply air conditioner capable of reducing wind resistance.
The technical scheme adopted by the invention for solving the technical problems is as follows: the lower air supply air conditioner comprises a cabinet and a heat exchanger assembly arranged in the cabinet; the top of the cabinet is provided with a first air inlet part communicated with the heat exchanger assembly, the top of the heat exchanger assembly is close to the first air inlet part, the top of the heat exchanger assembly is provided with an inclined plane, and an included angle alpha is formed between the inclined plane and the first air inlet part; and a second air inlet part is arranged on the front door plate of the cabinet and communicated with the heat exchanger assembly.
Preferably, said angle α is greater than 0 °, less than 90 °.
Preferably, the heat exchanger assembly comprises a first heat exchanger and a second heat exchanger which are connected at the tops of the first heat exchanger and the second heat exchanger at preset included angles; the top end face of the first heat exchanger is connected with the top end face of the second heat exchanger, and the inclined plane is formed on the connected top end face of the first heat exchanger and the top end face of the second heat exchanger.
Preferably, the bottom of the first heat exchanger is close to a front door panel of the cabinet, and the bottom of the second heat exchanger is close to a rear door panel of the cabinet; the surfaces of the first heat exchanger and the second heat exchanger which are opposite to each other face the front door plate and the rear door plate of the cabinet respectively.
Preferably, the first air inlet part comprises a first top air inlet and a second top air inlet which are connected with each other; the first top air inlet is positioned above the first heat exchanger, and the second top air inlet is positioned above the second heat exchanger;
the included angle alpha is positioned between the second top air inlet and the inclined plane.
Preferably, the lower air supply air conditioner further comprises a first filter screen arranged at an air inlet at the second top part and a second filter screen arranged on one side, facing the front door panel, of the first heat exchanger.
Preferably, the second air inlet portion comprises at least one air inlet arranged on the front door panel and a grille arranged in the air inlet;
the grid bars of the grid are horizontally arranged and face the inside of the cabinet and are downwards inclined.
Preferably, the cabinet comprises the front door panel, a rear door panel arranged opposite to the front door panel, and a side panel enclosed between the front door panel and the rear door panel; the front door panel can be opened and closed.
Preferably, the lower air supply air conditioner further comprises a fan arranged below the heat exchanger assembly; the bottom of rack is equipped with air-out portion, the air inlet end orientation of fan heat exchanger component, air-out end orientation and intercommunication air-out portion.
Preferably, the lower air supply air conditioner further comprises a support frame arranged at the bottom in the cabinet; the heat exchanger assembly is installed above the support frame, and the fan is arranged in the space inside the support frame.
The invention has the beneficial effects that: the included angle between the top of the heat exchanger assembly and the first air inlet part at the top is set, so that the top air can fully pass through the filter screen at the top, the air inlet area is increased, and the wind resistance is reduced; the arrangement of the air inlet part on the front door panel of the cabinet further increases the air inlet area of the cabinet, increases the air inlet volume, improves the refrigeration effect, improves the performance of the unit and reduces the power consumption capability of the unit.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic perspective view of a downdraft air conditioner according to an embodiment of the present invention;
FIG. 2 is a side cross-sectional schematic view of the lower plenum air conditioner of FIG. 1;
fig. 3 is a partially enlarged schematic view of a second air inlet portion of the lower supply air conditioner shown in fig. 1.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a downdraft air conditioner according to an embodiment of the present invention includes a cabinet 10 and a heat exchanger assembly 20 disposed in the cabinet 10.
The cabinet 10 may include a front door panel 11, a rear door panel 12 disposed opposite the front door panel 11, and a side panel 13 enclosed between the front door panel 11 and the rear door panel 12. The front door panel 11 can be opened and closed, so that the cabinet 10 can be conveniently opened to maintain and replace each part inside the cabinet. According to the size of the cabinet 10, the front door panel 11 can be integrated into a whole, and the connecting side plate 13 can be opened and closed; the front door panel 11 may be a plurality of side-by-side panels. The plurality of front door panels 11 may be relatively independent and opened and closed independently.
The top of the cabinet 10 is provided with a first air inlet portion as top air inlet. The front door panel 11 of the cabinet 10 is provided with a second air inlet portion 40 as front door air inlet. An air outlet portion (not shown) is arranged at the bottom of the cabinet 10, the first air inlet portion and the second air inlet portion 40 are respectively communicated with the air outlet portion through the heat exchanger assembly 20 to form a gas heat exchange flow channel, air enters the cabinet 10 from the first air inlet portion and the second air inlet portion 40, heat exchange is carried out through the heat exchanger assembly 20, and then the air is output from the air outlet portion, and the air flowing direction is shown by an arrow in fig. 2.
The top of the heat exchanger assembly 20 is adjacent the first air inlet portion. In particular, the top of the heat exchanger 20 is provided with an inclined surface 23, and an included angle α is formed between the inclined surface 23 and the first air inlet portion, and the included angle α may be greater than 0 ° and smaller than 90 °. The included angle α is set so that an included angle region is formed between the inclined surface 23 and the first air inlet portion, and air can fully enter the cabinet 10 through the first air inlet portion.
Wherein the heat exchanger assembly 20 comprises a first heat exchanger 21 and a second heat exchanger 22. The tops of the first heat exchanger 21 and the second heat exchanger 22 are connected with a preset included angle, and the preset included angle can be, but is not limited to, 0-90 degrees. The bottoms of the first heat exchanger 21 and the second heat exchanger 22 are far away from each other, so that the heat exchanger assembly 20 has an inverted V shape as a whole. The bottom of the first heat exchanger 21 is adjacent to the front door panel 11 and the bottom of the second heat exchanger 22 is adjacent to the rear door panel 12. In combination with the arrangement of the air outlet portion at the bottom of the cabinet 10, the air outlet portion may be located between the bottoms of the first heat exchanger 21 and the second heat exchanger 22.
The top end surfaces of the first heat exchanger 21 and the second heat exchanger 22 are connected, and the inclined surface 23 is formed on the top end surface of the connected first heat exchanger 21 and the top end surface of the second heat exchanger 22. In order to form the inclined surface 23, the first heat exchanger 21 and the second heat exchanger 22 may be installed at different heights, in this embodiment, as shown in fig. 2, the first heat exchanger 21 is arranged higher than the second heat exchanger 22, so that the top of the first heat exchanger 21 is higher than the top of the second heat exchanger 22, and then the top end surfaces of the two are smoothly connected, that is, the inclined surface 23 may be formed thereon.
Further, two opposite surfaces of the first heat exchanger 21, one surface facing the second heat exchanger 22 and one surface facing the front door panel 11; the second heat exchanger 22 has opposite surfaces, one surface facing the first heat exchanger 21 and one surface facing the rear door panel 12. The arrangement of the first heat exchanger 21 and the second heat exchanger 22 enables the pipeline connecting the heat exchangers to be led out from one side so as to be externally connected, so that the unit layout is simple, and the occupied internal maintenance space is small.
In the heat exchanger assembly 20, the opposite surfaces of the first heat exchanger 21 and the second heat exchanger 22 face the front door panel 11 and the rear door panel 12 of the cabinet 10, respectively. The space between the first heat exchanger 21 and the second heat exchanger 22 forms a triangular space and communicates with the air outlet portion at the bottom of the cabinet 10.
The first air inlet portion includes a first top air inlet 31 and a second top air inlet 32 connected to each other, corresponding to the arrangement of the heat exchanger assembly 20. The first top air inlet 31 is close to the front door panel 11, corresponds to the upper part of the first heat exchanger 21, and is communicated with the air outlet part through the first heat exchanger 21. The second top air inlet 32 is located on one side of the first top air inlet 31 far away from the front door panel 11, corresponds to the upper side of the second heat exchanger 22, and is communicated with the air outlet part through the second heat exchanger 22. The inclined surface 23 is located below the second top air inlet 32, and an included angle α between the inclined surface 23 and the first air inlet portion is mainly formed between the inclined surface 23 and the second top air inlet 32.
The second air inlet portion 40 is opposite to the first heat exchanger 21 on the front door panel 11, and is communicated with the air outlet portion through the first heat exchanger 21, so that both the first top air inlet 31 and the second air inlet portion 40 are communicated with the first heat exchanger 21, and air entering from the first heat exchanger 21 and the second top air inlet portion 40 exchanges heat through the first heat exchanger 21.
As shown in fig. 1 and 3, the second air inlet portion 40 includes at least one air inlet 41 disposed on the front door panel 11, and a grill 42 disposed in the air inlet 41. The size of the air inlet 41 can be set according to actual needs. The grid 42 includes a plurality of parallel grid bars. In the present embodiment, the grills are horizontally disposed, are downwardly inclined toward the inside of the cabinet 10, and guide the air introduced through the spaces between the grills to the first heat exchanger 21 without colliding with the air introduced from the first top intake vent 31.
Further, the lower blowing air conditioner of the present invention further includes a first filter 51 disposed at the second top air inlet 32, and a second filter 52 disposed at a side of the first heat exchanger 21 facing the front door panel 11. The first filter 51 filters the air entering from the second top intake vent 32, and the filtered air passes through the second heat exchanger 22. Because the included angle α between the second top air inlet 32 and the inclined plane 23 is formed to have an included angle region, enough space is left for air to pass through, and the wind resistance is reduced, so that the air can sufficiently enter the cabinet 10 through the first filter screen 51. The second filter 52 is disposed at a side of the first heat exchanger 21 to filter the air passing through the first heat exchanger 21, thereby simultaneously filtering the air entering from the first top intake port 31 and the second intake portion 40 with reduced windage.
The top of the second filter 52 may be connected to the first filter 51 by a connector.
The lower air supply air conditioner of the present invention further includes a support frame 50 and a fan 60 disposed at the bottom of the cabinet 10. The heat exchanger assembly 20 is mounted above the support frame 50. The fan 60 is located below the heat exchanger assembly 20, is disposed in the space inside the support frame 50, and is located on the gas heat exchange flow passage. The air inlet end of the fan 60 faces the heat exchanger component 20, and the air outlet end faces the communicated air outlet part, so that power is provided for air flowing.
When the lower air supply air conditioner is used, the heat exchanger assembly 20 is connected with a water inlet pipe and a water outlet pipe, and water is used as a heat exchange medium in the heat exchanger assembly. The fan 60 starts to extract air, so that air enters the cabinet 10 from the top of the cabinet 10 and the front door panel 11 respectively, is sent out from the air outlet part after heat exchange of the heat exchanger assembly 20, and is used for supplying air and cooling a machine room.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. A downdraft air conditioner, comprising a cabinet (10) and a heat exchanger assembly (20) mounted within the cabinet (10); the top of the cabinet (10) is provided with a first air inlet part communicated with the heat exchanger assembly (20), the top of the heat exchanger assembly (20) is close to the first air inlet part, the top of the heat exchanger assembly (20) is provided with an inclined surface (23), and an included angle alpha is formed between the inclined surface (23) and the first air inlet part; a front door plate (11) of the cabinet (10) is provided with a second air inlet part (40), and the second air inlet part (40) is communicated with the heat exchanger assembly (20);
the included angle alpha is larger than 0 degree and smaller than 90 degrees;
the top of the heat exchanger component (20) is close to the first air inlet part, an included angle area is formed between the inclined surface (23) and the first air inlet part, and air can fully enter the cabinet (10) through the first air inlet part;
the heat exchanger assembly (20) comprises a first heat exchanger (21) and a second heat exchanger (22) which are connected at the tops by a preset included angle; the top end surface of the first heat exchanger (21) is connected with the top end surface of the second heat exchanger (22), and the inclined surface (23) is formed on the connected top end surface of the first heat exchanger (21) and the top end surface of the second heat exchanger (22);
the first heat exchanger (21) and the second heat exchanger (22) are installed in different heights;
the first air inlet part comprises a first top air inlet (31) and a second top air inlet (32) which are connected; the first top air inlet (31) is positioned above the first heat exchanger (21), and the second top air inlet (32) is positioned above the second heat exchanger (22); the included angle alpha is positioned between the second top air inlet (32) and the inclined plane (23);
the lower air supply air conditioner also comprises a first filter screen (51) arranged at the second top air inlet (32).
2. A downdraft air conditioner according to claim 1, wherein the bottom of the first heat exchanger (21) is adjacent to a front door panel (11) of the cabinet (10), and the bottom of the second heat exchanger (22) is adjacent to a rear door panel (12) of the cabinet (10); the back surfaces of the first heat exchanger (21) and the second heat exchanger (22) face the front door panel (11) and the rear door panel (12) of the cabinet (10) respectively.
3. A down-draft air conditioner according to claim 2, further comprising a second filter (52) provided on a side of the first heat exchanger (21) facing the front door panel (11).
4. The under-blow air conditioner according to claim 1, wherein said second air inlet portion (40) includes at least one air inlet opening (41) provided on said front door panel (11), a grill (42) provided in said air inlet opening (41);
the bars of the grating (42) are horizontally arranged and are downwards inclined towards the inside of the cabinet (10).
5. A downdraft air conditioner according to claim 1, wherein the cabinet (10) includes the front door panel (11), a rear door panel (12) disposed opposite to the front door panel (11), and a side panel (13) enclosed between the front door panel (11) and the rear door panel (12); the front door panel (11) can be opened and closed.
6. A low draft air conditioner according to any of claims 1-5 further including a fan (60) disposed below the heat exchanger assembly (20); the bottom of rack (10) is equipped with air-out portion, the air inlet end orientation of fan (60) heat exchanger component (20), air-out end orientation and intercommunication air-out portion.
7. The downdraft air conditioner according to claim 6, further comprising a support frame (50) provided at a bottom portion in the cabinet (10); the heat exchanger assembly (20) is installed above the support frame (50), and the fan (60) is disposed in a space inside the support frame (50).
CN201811119868.8A 2018-09-25 2018-09-25 Lower air supply air conditioner Active CN109405089B (en)

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Application Number Priority Date Filing Date Title
CN201811119868.8A CN109405089B (en) 2018-09-25 2018-09-25 Lower air supply air conditioner

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Application Number Priority Date Filing Date Title
CN201811119868.8A CN109405089B (en) 2018-09-25 2018-09-25 Lower air supply air conditioner

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CN109405089A CN109405089A (en) 2019-03-01
CN109405089B true CN109405089B (en) 2021-06-15

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600148A1 (en) * 1985-12-10 1987-12-18 Inst Nacional Sistemas Auto Method for air conditioning computers
CN202902474U (en) * 2012-09-24 2013-04-24 艾默生网络能源有限公司 Machine room air conditioner
CN103500000A (en) * 2013-09-29 2014-01-08 广东欧科空调制冷有限公司 Refrigerating system for data machine room
CN204574316U (en) * 2015-01-07 2015-08-19 深圳市艾特网能有限公司 Frozen water type machine room air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7647787B2 (en) * 2004-04-22 2010-01-19 Hewlett-Packard Development Company, L.P. Upgradeable, modular data center cooling apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600148A1 (en) * 1985-12-10 1987-12-18 Inst Nacional Sistemas Auto Method for air conditioning computers
CN202902474U (en) * 2012-09-24 2013-04-24 艾默生网络能源有限公司 Machine room air conditioner
CN103500000A (en) * 2013-09-29 2014-01-08 广东欧科空调制冷有限公司 Refrigerating system for data machine room
CN204574316U (en) * 2015-01-07 2015-08-19 深圳市艾特网能有限公司 Frozen water type machine room air conditioner

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