CN113790477A - Air duct heat exchange structure, unit and electrical equipment - Google Patents
Air duct heat exchange structure, unit and electrical equipment Download PDFInfo
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- CN113790477A CN113790477A CN202111070996.XA CN202111070996A CN113790477A CN 113790477 A CN113790477 A CN 113790477A CN 202111070996 A CN202111070996 A CN 202111070996A CN 113790477 A CN113790477 A CN 113790477A
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- air duct
- heat exchange
- duct
- unit
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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
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—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
- F24F13/30—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)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air duct heat exchange structure, a unit and electrical equipment, relates to the technical field of electrical equipment, and solves the technical problems of small heat exchange area and low heat exchange efficiency of a heat exchanger limited by the layout of the conventional unit. The air duct heat exchange structure comprises a main air duct and at least one branch air duct, wherein an air outlet of the branch air duct is communicated to the main air duct, and heat exchangers are arranged in the main air duct and the branch air duct. The air outlet of the branch air duct is communicated to the main air duct, and the heat exchangers are arranged in the main air duct and the branch air duct, so that air flow after heat exchange through the branch air duct can enter the main air duct for heat exchange again, the heat exchange area of the heat exchanger is increased, multiple heat exchange is realized, and the heat exchange efficiency is greatly improved; after the unit adopts this wind channel heat transfer structure, heat exchange efficiency has obtained the promotion, has also increased the casing space utilization of unit.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to an air duct heat exchange structure, a unit and electrical equipment.
Background
In the commercial air conditioning industry, the overall layout of the existing air conditioners is consistent, particularly, as shown in fig. 1, the layout mode adopted by the existing air conditioners is mainly a layout mode of pure upward air outlet, and the electrical box is arranged in front of a pipeline system. The applicant finds that the existing layout mode is limited by the layout influence of the air conditioner, and has the following problems:
most of the existing commercial outdoor units of air conditioners adopt a condenser, and part of the outdoor units of air conditioners adopt L-shaped or U-shaped condensers for serial splicing, and due to the layout limitation of outdoor units, the condensers have small heat exchange area, low heat exchange efficiency and low utilization of shell space;
the bottom of the condenser is far away from the air outlet, so that the formed negative pressure is small, and the heat exchange efficiency of the bottom is low; and traditional point switches the overall arrangement, and automatically controlled is located under the air outlet, and the windage is big, and then influences wind field heat exchange efficiency:
traditional air conditioner overall arrangement, automatically controlled box generally set up in pipeline dead ahead, and the unit space is little, need can maintain after dismantling the electrical apparatus box, and it is inconvenient to install the maintenance after selling.
Similarly, the unit with the air duct heat exchange structure has the technical problems of small heat exchange area and low heat exchange efficiency of the heat exchanger due to structural limitation.
Disclosure of Invention
The invention aims to provide an air duct heat exchange structure, a unit and electrical equipment, which at least solve the technical problems of the prior art that the heat exchange is limited by the layout of the unit, the heat exchanger has small heat exchange area and the heat exchange efficiency is low. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an air duct heat exchange structure for an outdoor unit, which comprises a main air duct and at least one branch air duct, wherein an air outlet of the branch air duct is communicated to the main air duct, heat exchangers are arranged in the main air duct and the branch air duct, and air flow after heat exchange through the branch air duct can enter the main air duct for heat exchange again.
Optionally, a fan assembly is arranged in each of the main air duct and the branch air duct.
Optionally, the fan assembly includes a fan and a flow guide mechanism, and the flow guide mechanism is at least partially disposed on the periphery of a fan blade of the fan.
Optionally, the fan assembly in the main air duct is arranged close to the air outlet of the main air duct.
Optionally, an included angle is formed between the axial direction of the fan assembly in the branch air duct and the axial direction of the fan assembly in the main air duct.
The unit provided by the invention comprises a shell, a pipeline unit, an electric control unit and any one of the air channel heat exchange structures.
Optionally, the main air duct and the branch air duct are disposed in the casing side by side, air inlets of the main air duct and the branch air duct are respectively formed in a side wall of the casing, and an air outlet of the main air duct is located on a top side of the casing as a total air outlet of the multi-connected outdoor unit.
Optionally, the branch air duct is arranged at the top of the casing and is retracted to form an accommodating space, and the electronic control unit is arranged in the accommodating space.
Optionally, the pipeline unit is disposed in an area enclosed by the heat exchanger in the main air duct.
The invention provides electrical equipment which comprises any one of the units.
According to the air duct heat exchange structure provided by the invention, the air outlet of the branch air duct is communicated to the main air duct, and the heat exchangers are arranged in the main air duct and the branch air duct, so that air flow after heat exchange through the branch air duct can enter the main air duct for heat exchange again, the heat exchange area of the heat exchanger is increased, meanwhile, multiple heat exchange is realized, and the heat exchange efficiency is greatly improved; after the unit adopts this wind channel heat transfer structure, heat exchange efficiency has obtained the promotion, has also increased the casing space utilization of unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view illustrating an arrangement structure of a multi-connected outdoor unit according to the related art;
fig. 2 is a schematic perspective view illustrating a multiple outdoor unit according to an embodiment of the present invention;
fig. 3 is an exploded view of the multiple outdoor unit of fig. 2;
fig. 4 is a schematic sectional view illustrating an outdoor unit according to an embodiment of the present invention in front view, in which arrows indicate the flow direction of air streams;
fig. 5 is a schematic top sectional view illustrating an outdoor unit according to an embodiment of the present invention, in which arrows indicate the flow direction of air streams;
fig. 6 is a schematic structural view of a casing of a multi-connected outdoor unit according to an embodiment of the present invention.
In the figure 1, a main air duct; 2. a branch duct; 3. a first condenser; 4. a second condenser; 5. a first fan assembly; 51. a first fan; 52. a first flow guiding ring; 6. a second fan assembly; 61. a second fan; 62. a second flow guiding ring; 7. an electronic control unit; 8. a piping unit; 9. a main air outlet; 10. an upper cross member; 11. a top cover; 12. a base; 13. a motor bracket; 14. a wind deflector; 15. a panel; 16. side plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the invention provides an air duct heat exchange structure which comprises a main air duct 1 and at least one branch air duct 2, wherein an air outlet of the branch air duct 2 is communicated to the main air duct 1, heat exchangers are arranged in the main air duct 1 and the branch air duct 2, and air flow after heat exchange through the branch air duct 2 can enter the main air duct 1 for heat exchange again.
The air outlet of the branch air duct 2 is communicated to the main air duct 1, and the heat exchangers are arranged in the main air duct 1 and the branch air duct 2, so that air flow after heat exchange through the branch air duct 2 can enter the main air duct 1 for heat exchange again, the heat exchange area of the heat exchanger is increased, meanwhile, multiple heat exchange is realized, and the heat exchange efficiency is greatly improved; after the unit (such as a multi-connected outdoor unit) adopts the air channel heat exchange structure, the heat exchange efficiency is improved, and the shell space utilization rate of the unit is increased.
As an optional implementation mode, the two heat exchangers are arranged along the air duct wall, and an encircling structure with one side open is formed, so that the air duct space is effectively utilized. As shown in fig. 5, all the heat exchangers are arranged in the corresponding air ducts in a C-shaped cross section. The C-shaped heat exchanger can ensure the maximum heat exchange area while reasonably utilizing the space, is convenient for setting the communication positions of the main air duct 1 and the branch air ducts 2, and improves the space utilization rate.
As an optional implementation manner, a fan assembly is disposed in each of the main duct 1 and the branch duct 2, and is used for driving airflow to circulate according to a set path.
Specifically, the fan assembly comprises a fan and a flow guide mechanism, at least part of the flow guide mechanism is arranged on the periphery of fan blades of the fan, and the flow guide mechanism can collect and guide dispersed airflow, so that airflow loss is reduced, and system energy consumption is also reduced. In this embodiment, the diversion mechanism adopts a diversion ring, the first fan assembly 5 in the main air duct 1 includes a first fan 51 and a first diversion ring 52, and the second fan assembly 6 in the branch air duct 2 includes two second fans 61 and second diversion rings 62 respectively and correspondingly disposed.
Example 2:
the invention provides a multi-connected outdoor unit which comprises a shell, a pipeline unit 8, an electric control unit 7 and any one of the air channel heat exchange structures.
As an optional embodiment, the heat exchanger in the main air duct 1 is a first condenser 3, and the heat exchanger in the branch air duct 2 is a second condenser 4; the main air duct 1 and the branch air duct 2 are arranged in the casing side by side, air inlets of the main air duct 1 and the branch air duct 2 are formed in the side wall of the casing respectively, and an air outlet of the main air duct 1 is located on the top side of the casing as a total air outlet 9 of the multi-connected outdoor unit.
As an optional embodiment, the branch duct 2 is evacuated from the top of the casing to form an accommodating space, and the electronic control unit 7 is disposed in the accommodating space. The electric control unit 7 is arranged outside the flow field instead of being positioned inside the flow field traditionally, so that the air flow is prevented from being blocked, the wind resistance is small, and the heat exchange efficiency of the wind field is ensured; and the electric control unit 7 does not occupy the unit maintenance space any more, thereby improving the convenience of installation and maintenance.
As an alternative embodiment, the fan assembly in the main duct 1 is disposed near the total air outlet 9.
As an alternative embodiment, the axis of the first fan assembly 5 in the branch duct 2 is arranged horizontally. Only set up a total air outlet 9, two second fan subassemblies 6 in the branch road wind channel 2 are arranged from top to bottom, have improved the heat transfer effect of condenser lower part, have improved the heat transfer homogeneity of each part of condenser simultaneously.
Specifically, the piping unit 8 is disposed in the enclosed area of the first condenser 3.
As shown in fig. 2-6, the invention provides a brand new arrangement of the outdoor unit of the air conditioner, which increases the heat exchange area of the condenser of the unit, accelerates the speed of heat exchange inside and outside the unit, and improves the heat exchange capacity of the unit by multiple heat exchanges through multiple air ducts; meanwhile, the wasted space limited by the layout of the traditional air conditioner outdoor unit is well utilized, and the heat exchange efficiency below the condenser is well improved through multi-air-channel and multi-angle air channel layout (the airflow of the branch air channel 2 flows in the horizontal direction and vertically moves upwards together with the airflow in the main air channel 1 after entering the main air channel 1); meanwhile, by combining the layout form of the electrical box component (the electric control unit 7) in the whole shell, the problem that the electrical box component is difficult to maintain due to wind shielding and occupation of unit pipeline maintenance space in the traditional air conditioner layout is solved.
The layout of the outdoor unit of the air conditioner mainly comprises a shell, a main air duct 1, a branch air duct 2, a pipeline unit 8 and an electric control unit 7. As shown in fig. 2 and 4, the first fan assembly 5 (the first fan 51 and the first baffle 52) in the main duct 1 is located above a condenser; the piping unit 8 is located inside the first condenser 3; the second condenser 4 is disposed at a side of the first condenser 3, and the second fan assembly 6 (the second fan 61 and the second guide ring 62) in the branch air duct 2 is located inside the second condenser 4. The electric control unit 7 is positioned above the second condenser 4, namely on the side of the first fan assembly 5, and is positioned at the upper part of the shell; the first fan assembly 5, the second fan assembly 6, the pipeline unit 8 and the electric control unit 7 are all arranged inside the machine shell.
The cabinet comprises panels 15, side panels 16, a base 12, a top cover 11, etc., see fig. 6. The fan includes fan blade, motor and motor support 13. The first condenser 3 and the second condenser 4 are C-shaped, one end of each condenser is fixed through a side plate, and the other end of each condenser is fixed through a wind shield 14; and the electric control unit 7 is arranged on a cross beam 10 at the upper part of the unit and is positioned above the branch air duct 2.
The outdoor unit air conditioner layout of the invention, when the system is started, the air flow of the wind field is as shown in fig. 4 and fig. 5. The main air duct 1 sends out the air inside the unit through the first guide ring 52, and the outside air forms air to enter the inside of the unit through the outside of the first condenser 3 and the second condenser 4 to complete heat exchange due to the pressure difference inside the outdoor unit. The second fan assembly 6 in the branch air duct 2 can accelerate the air flow entering the second condenser 4, accelerate the flow of an air field, send the accelerated air to the first condenser 3 for secondary heat exchange, and then enter the first fan assembly 5 from the first condenser 3. The first fan 51 then transmits the incoming air flow to the outdoor unit; this is repeated. Like fig. 3-5, greatly promoted complete machine heat exchange efficiency, also solved the problem that the heat exchange efficiency is poor that leads to because of being far away from the wind channel mouth below traditional condenser part.
According to the invention, the electric control unit 7 is arranged above the branch air duct 2 and not above the traditional pipeline unit, so that the problem that the electric control unit 7 occupies the space of the pipeline system is solved, the design and subsequent installation and maintenance of the pipeline system are facilitated on one hand, and the wind resistance of the electric control unit 7 in a wind field is reduced on the other hand.
The invention also provides an air conditioner which comprises any multi-connected outdoor unit. Through multiple heat exchange of the multiple air channels, the heat exchange area of the unit condenser is increased, the speed of heat exchange inside and outside the unit is increased, and the heat exchange capacity of the unit is improved; meanwhile, the wasted space limited by the layout of the traditional air conditioner outdoor unit is well utilized, and the heat exchange efficiency below the condenser is well improved through the multi-air-duct and multi-angle air duct layout, and on the other hand; due to the novel layout, the electric control box component can be arranged above the unit; the problem of traditional air conditioner overall arrangement electrical apparatus box part keep out the wind and occupy unit pipeline maintenance space, lead to the maintenance difficult is solved.
In the description of the invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered 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 (11)
1. An air duct heat exchange structure is characterized by comprising a main air duct and at least one branch air duct, wherein an air outlet of the branch air duct is communicated to the main air duct, heat exchangers are arranged in the main air duct and the branch air duct, and air flow after heat exchange through the branch air duct can enter the main air duct for heat exchange again.
2. The air duct heat exchange structure according to claim 1, wherein fan assemblies are disposed in the main air duct and the branch air ducts.
3. The air duct heat exchange structure according to claim 2, wherein the fan assembly comprises a fan and a flow guide mechanism, and the flow guide mechanism is at least partially arranged on the periphery of the fan blade of the fan.
4. The outdoor unit of claim 2, wherein the fan assembly in the main duct is disposed near an air outlet of the main duct.
5. The outdoor unit of claim 2, wherein an axial direction of the fan assembly in the branch duct is at an angle to an axial line of the fan assembly in the main duct.
6. A unit, characterized in that, it comprises a casing, a pipeline unit, an electric control unit and the air duct heat exchange structure of any one of claims 1 to 5.
7. The unit according to claim 6, wherein the main duct and the branch duct are disposed side by side in the casing, and air inlets of the main duct and the branch duct are respectively formed on a side wall of the casing, and an air outlet of the main duct is located on a top side of the casing as a total air outlet of the outdoor unit.
8. The unit according to claim 6, wherein the branch duct is recessed from the top of the housing to form a receiving space, and the electronic control unit is disposed in the receiving space.
9. The unit according to claim 6, characterized in that the pipeline unit is arranged in the area enclosed by the heat exchanger in the main air duct.
10. An electrical apparatus, characterized in that it comprises a set according to any one of claims 6 to 9.
11. The electrical apparatus of claim 10, wherein the electrical apparatus is an air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070996.XA CN113790477A (en) | 2021-09-13 | 2021-09-13 | Air duct heat exchange structure, unit and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070996.XA CN113790477A (en) | 2021-09-13 | 2021-09-13 | Air duct heat exchange structure, unit and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113790477A true CN113790477A (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111070996.XA Pending CN113790477A (en) | 2021-09-13 | 2021-09-13 | Air duct heat exchange structure, unit and electrical equipment |
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| CN (1) | CN113790477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646105A (en) * | 2022-03-24 | 2022-06-21 | 青岛海尔空调电子有限公司 | Air conditioning system and top air-out air conditioning outdoor unit thereof |
-
2021
- 2021-09-13 CN CN202111070996.XA patent/CN113790477A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646105A (en) * | 2022-03-24 | 2022-06-21 | 青岛海尔空调电子有限公司 | Air conditioning system and top air-out air conditioning outdoor unit thereof |
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