CN106016508B - Air condensing units and air conditioner - Google Patents
Air condensing units and air conditioner Download PDFInfo
- Publication number
- CN106016508B CN106016508B CN201610586632.XA CN201610586632A CN106016508B CN 106016508 B CN106016508 B CN 106016508B CN 201610586632 A CN201610586632 A CN 201610586632A CN 106016508 B CN106016508 B CN 106016508B
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- heat exchanger
- outdoor unit
- condenser
- air
- throttling element
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- 239000003507 refrigerant Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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Classifications
-
- 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
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The embodiment of the invention provides an air conditioner outdoor unit and an air conditioner, relates to the technical field of air conditioners, and can improve the heat dissipation effect of equipment to be cooled and prolong the service life of the air conditioner. The air conditioner outdoor unit comprises a machine shell, wherein a condenser cavity and an accommodating cavity are arranged in the machine shell, equipment to be cooled is accommodated in the accommodating cavity, an air inlet and an air outlet are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet; the equipment to be radiated is positioned between the air inlet and the air outlet; the condenser cavity is provided with a condenser and a fan, a first throttling element is arranged on an outlet pipeline of the condenser, a refrigerant branch is connected in parallel on the first throttling element and comprises a second throttling element and a heat exchanger which are connected in series, the refrigerant which is shunted to the refrigerant branch can sequentially flow through the second throttling element and the heat exchanger, and the heat exchanger is positioned at an air inlet. The invention is used for air conditioner heat dissipation.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner.
Background
Along with the continuous improvement of the life quality of people, the air conditioner is more and more widely used in common families, and a household air conditioner generally comprises an indoor unit and an outdoor unit, wherein an electric control device for controlling a compressor or a fan to operate is usually arranged in the outdoor unit, the electric control device can generate heat in the working process, the heat can cause the temperature of the electric control device to rise, especially when the environment temperature of the outdoor unit is higher, the electric control device can not effectively dissipate heat, and the normal work of the electric control device can be influenced by the overhigh temperature.
In the prior art, a heat sink is generally used to cool an electronic control device. As shown in fig. 1, the heat radiator 01 is in contact with the electric control device 02, so that heat on the electric control device 02 is transferred to the heat radiator 01, the heat radiator 01 is placed in a flow field of a fan 03 of the outdoor unit, and the heat radiator 01 is forcibly radiated by using air flow flowing through a condenser 04 in the outdoor unit, so as to achieve the purpose of cooling the electric control device 02. However, in the prior art, the airflow for dissipating heat of the heat sink 01 is the high-temperature airflow after heat exchange by the condenser 04, and the temperature difference between the high-temperature airflow and the temperature of the heat sink 01 is small, so that when the high-temperature airflow is used for forcibly dissipating heat of the heat sink 01, the heat dissipation effect is poor, the cooling effect of the electric control device 02 is poor, and the reliability and the service life of the air conditioner can be affected seriously.
Disclosure of Invention
The embodiment of the invention provides an air conditioner outdoor unit and an air conditioner, which can improve the heat dissipation effect of equipment to be dissipated and prolong the service life of the air conditioner.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
on one hand, the embodiment of the invention provides an air conditioner outdoor unit, which comprises a machine shell, wherein a condenser cavity and an accommodating cavity are arranged in the machine shell, equipment to be radiated is accommodated in the accommodating cavity, an air inlet and an air outlet are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet; the equipment to be radiated is positioned between the air inlet and the air outlet; the condenser cavity is internally provided with a condenser and a fan, an outlet pipeline of the condenser is provided with a first throttling element, the first throttling element is connected with a refrigerant branch in parallel, the refrigerant branch comprises a second throttling element and a heat exchanger which are connected in series, the refrigerant which is distributed to the refrigerant branch can sequentially flow through the second throttling element and the heat exchanger, and the heat exchanger is positioned at the air inlet.
On the other hand, an embodiment of the present invention provides an air conditioner, including an air conditioner indoor unit and any one of the air conditioner outdoor units described above.
The air conditioner outdoor unit comprises a machine shell, wherein a condenser cavity and an accommodating cavity are arranged in the machine shell, equipment to be cooled is accommodated in the accommodating cavity, an air inlet and an air outlet are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet; the equipment to be radiated is positioned between the air inlet and the air outlet; the condenser cavity is provided with a condenser and a fan, a first throttling element is arranged on an outlet pipeline of the condenser, a refrigerant branch is connected in parallel on the first throttling element and comprises a second throttling element and a heat exchanger which are connected in series, the refrigerant which is shunted to the refrigerant branch can sequentially flow through the second throttling element and the heat exchanger, and the heat exchanger is positioned at an air inlet. Compared with the prior art, the air inlet and the air outlet are arranged on the side wall of the accommodating cavity for accommodating the equipment to be radiated, and the equipment to be radiated is placed in the radiating air duct formed by the air inlet and the air outlet; a refrigerant branch is connected in parallel to a first throttling element on an outlet pipeline of the condenser, a part of the refrigerant flowing through the condenser is divided to a refrigerant branch, and when the low-temperature and low-pressure refrigerant throttled by a second throttling element in the refrigerant branch flows through a heat exchanger positioned at an air inlet, the low-temperature and low-pressure refrigerant in the heat exchanger exchanges heat with air outside the heat exchanger, so that low-temperature heat exchange airflow is obtained; along with the rotation of the fan in the condenser cavity, the low temperature heat exchange airflow at the air inlet can be guided to flow through the equipment to be cooled, and flows to the air outlet.
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 structural diagram of an outdoor unit of an air conditioner according to the prior art;
fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present invention;
fig. 6 is a fourth schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an air conditioner outdoor unit, as shown in fig. 2 to 6, the air conditioner outdoor unit comprises a casing 10, a condenser cavity and an accommodating cavity are arranged in the casing 10, equipment to be cooled is accommodated in the accommodating cavity, an air inlet 11 and an air outlet 12 are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet 12; the equipment to be radiated is positioned between the air inlet 11 and the air outlet 12; the condenser cavity is internally provided with a condenser 13 and a fan 14, an outlet pipeline of the condenser 13 is provided with a first throttling element 15, the first throttling element 15 is connected with a refrigerant branch in parallel, the refrigerant branch comprises a second throttling element 16 and a heat exchanger 17 which are connected in series, the refrigerant which is distributed to the refrigerant branch can sequentially flow through the second throttling element 16 and the heat exchanger 17, and the heat exchanger 17 is positioned at the air inlet 11.
The equipment to be cooled is an element or a device needing to be cooled, and the accommodating cavity is a cavity where the equipment to be cooled is located. For example, when the device to be cooled is the compressor 23, the accommodating cavity is a compressor cavity; when the device to be cooled is the electronic control board 19 or the heat sink 20 fixed with the electronic control board 19, the accommodating cavity is the electrical box 18. The embodiment of the present invention is not limited thereto.
The first throttling element 15 and/or the second throttling element 16 may be any one of an electronic expansion valve, a thermal valve, or a capillary tube, or may be other devices for throttling, which is not limited in the embodiments of the present invention. The heat exchanger 17 may be a fin-and-tube heat exchanger, a microchannel parallel flow heat exchanger, or another heat exchanger that uses a refrigerant medium to treat an air flow, which is not limited in the embodiment of the present invention.
Referring to fig. 2 and 6, the refrigerant flowing out of the outlet pipe of the condenser 13 passes through the tee 26 and then is divided into two branches, one branch flows to the first throttling element 15 to participate in throttling to prepare a low-temperature low-pressure refrigerant, the other branch also obtains the low-temperature low-pressure refrigerant after flowing to the second throttling element 16, and the part of the refrigerant flows to the heat exchanger 17 to participate in heat exchange to obtain a low-temperature heat exchange airflow. Then the refrigerants of the two branches are converged at the stop valve 27 and flow to the evaporator 24 of the indoor unit of the air conditioner to participate in heat exchange. Because the heat exchanger 17 is located at the air inlet 11 of the accommodating cavity, after the fan 14 works, a pressure difference is formed between the air inlet 11 and the air outlet 12 of the accommodating cavity, and the pressure difference can guide low-temperature heat exchange airflow around the heat exchanger 17 located at the air inlet to flow through the equipment to be cooled and flow to the air outlet 12, so that the equipment to be cooled is cooled.
Therefore, compared with the prior art, the air inlet and the air outlet are arranged on the side wall of the accommodating cavity for accommodating the equipment to be radiated, and the equipment to be radiated is placed in the radiating air duct formed by the air inlet and the air outlet; a refrigerant branch is connected in parallel to a first throttling element on an outlet pipeline of the condenser, a part of the refrigerant flowing through the condenser is divided to a refrigerant branch, and when the low-temperature and low-pressure refrigerant throttled by a second throttling element in the refrigerant branch flows through a heat exchanger positioned at an air inlet, the low-temperature and low-pressure refrigerant in the heat exchanger exchanges heat with air outside the heat exchanger, so that low-temperature heat exchange airflow is obtained; along with the rotation of the fan in the condenser cavity, the low temperature heat exchange airflow at the air inlet can be guided to flow through the equipment to be cooled, and flows to the air outlet.
Optionally, the accommodating cavity is an electrical box 18 disposed in the casing 10, and the device to be cooled is an electrical control board 19 in the electrical box 18. Referring to fig. 3 and 4, the electrical box 18 is fixed on the top inner wall of the casing 10, the partition 25 separates the rest of the space inside the casing 10 to form a condenser chamber and a compressor chamber, the air inlet 11 is located at one side of the compressor chamber, the air outlet 12 is located at one side of the condenser chamber, and the low-temperature heat exchange airflow at the air inlet 11 flows through the electrical control board 19 located between the air inlet 11 and the air outlet 12 to the air outlet 12, so as to dissipate heat of the electrical control board 19. It should be noted that, in the embodiment of the present invention, specific setting positions, setting sizes, and the like of the air inlet 11 and the air outlet 12 on the electrical box 18 are not limited, and those skilled in the art can set the positions according to actual situations. Considering the installation position of the electrical box 18 in the casing 10, preferably, the air inlet 11 and the air outlet 12 are both arranged on the side wall of the electrical box 18 close to the bottom plate of the casing 10, so that the air inlet and outlet quantities of the air inlet 11 and the air outlet 12 can be increased, and the heat dissipation effect of the device to be cooled is improved.
Optionally, referring to fig. 3, the accommodating cavity is an electrical box 18 disposed in the casing 10, an electrical control board 19 is disposed in the electrical box 18, and a heat sink 20 is fixed on the electrical control board 19; the device to be cooled is a heat sink 20. The radiator 20 radiates the electric control board 19, and the low-temperature heat exchange airflow obtained by the heat exchanger 17 is utilized to radiate the radiator 20, so that a better radiating effect can be realized.
Preferably, a switch 21 is further connected in series to the refrigerant branch, and the switch 21 can control the opening and closing of the refrigerant branch. The switch 21 may be any one of an electromagnetic cut-off valve, a thermal cut-off valve, or a mechanical cut-off valve, or may also be another device having an opening and closing function, which is not limited in the embodiment of the present invention.
It should be noted that the switching element 21 may be connected in series to any position of the refrigerant branch, for example, the switching element 21 may be connected in series after the heat exchanger 17, or may be connected in series between the heat exchanger 17 and the second throttling element 16, which is not limited in this embodiment of the present invention.
The heat exchanger 17 may be located inside the electrical box 18, or may be located outside the electrical box 18, which is not limited in the embodiment of the present invention. Due to the limited space inside the electrical box 18, it is preferred that the heat exchanger 17 is located outside the electrical box 18, as shown with reference to fig. 4 and 5. So that the heat exchanger 17 does not occupy the internal space of the electrical box 18; and the heat exchanger 17 is easy to generate condensed water in the working process, and the heat exchanger 17 is arranged outside the electrical box 18, so that the condensed water on the heat exchanger 17 can be conveniently discharged.
Further, as shown in fig. 4 and 5, a mounting seat 22 is fixed on a side wall of the electrical box 18 near the air inlet 11, and the heat exchanger 17 is disposed on the mounting seat 22. By arranging the mounting seat 22, the heat exchanger 17 can be conveniently placed, and the structure of the electrical box 18 is not required to be changed, so that the generalization degree of products is improved. Wherein the mounting base 22 is generally secured to the electronics box 18 via a securing structure.
Preferably, the heat exchanger 17 is arranged inclined with respect to the horizontal plane; the mounting seat 22 is provided with a water collecting area which can collect condensed water on the heat exchanger 17. The heat exchanger 17 is obliquely arranged, so that condensed water on the heat exchanger 17 is favorably collected to a water collecting area of the mounting seat 22 along fins of the heat exchanger 17 for centralized treatment, and the condensed water is prevented from vertically dropping to a lower compressor area to form potential safety hazards. It should be noted that the heat exchanger 17 may have any inclination angle with respect to the horizontal plane, which is not limited in the embodiment of the present invention. In actual production, the heat exchanger 17 is typically angled at 45 ° to the horizontal.
The air conditioner outdoor unit provided by the embodiment of the invention comprises a machine shell, wherein a condenser cavity and an accommodating cavity are arranged in the machine shell, equipment to be radiated is accommodated in the accommodating cavity, an air inlet and an air outlet are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet; the equipment to be radiated is positioned between the air inlet and the air outlet; the condenser cavity is provided with a condenser and a fan, a first throttling element is arranged on an outlet pipeline of the condenser, a refrigerant branch is connected in parallel on the first throttling element and comprises a second throttling element and a heat exchanger which are connected in series, the refrigerant which is shunted to the refrigerant branch can sequentially flow through the second throttling element and the heat exchanger, and the heat exchanger is positioned at an air inlet. Compared with the prior art, the air inlet and the air outlet are arranged on the side wall of the accommodating cavity for accommodating the equipment to be radiated, and the equipment to be radiated is placed in the radiating air duct formed by the air inlet and the air outlet; a refrigerant branch is connected in parallel to a first throttling element on an outlet pipeline of the condenser, a part of the refrigerant flowing through the condenser is divided to a refrigerant branch, and when the low-temperature and low-pressure refrigerant throttled by a second throttling element in the refrigerant branch flows through a heat exchanger positioned at an air inlet, the low-temperature and low-pressure refrigerant in the heat exchanger exchanges heat with air outside the heat exchanger, so that low-temperature heat exchange airflow is obtained; along with the rotation of the fan in the condenser cavity, the low temperature heat exchange airflow at the air inlet can be guided to flow through the equipment to be cooled, and flows to the air outlet.
Another embodiment of the present invention provides an air conditioner, including an air conditioner indoor unit and any one of the air conditioner outdoor units described above. The air conditioner outdoor unit is characterized in that an air inlet and an air outlet are formed in the side wall of an accommodating cavity for accommodating equipment to be radiated, and the equipment to be radiated is placed in a radiating air duct formed by the air inlet and the air outlet; a refrigerant branch is connected in parallel to a first throttling element on an outlet pipeline of the condenser, a part of the refrigerant flowing through the condenser is divided to a refrigerant branch, and when the low-temperature and low-pressure refrigerant throttled by a second throttling element in the refrigerant branch flows through a heat exchanger positioned at an air inlet, the low-temperature and low-pressure refrigerant in the heat exchanger exchanges heat with air outside the heat exchanger, so that low-temperature heat exchange airflow is obtained; along with the rotation of the fan in the condenser cavity, the low temperature heat exchange airflow at the air inlet can be guided to flow through the equipment to be cooled, and flows to the air outlet.
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 appended claims.
Claims (11)
1. An outdoor unit of an air conditioner, comprising a casing, characterized in that,
a condenser cavity and an accommodating cavity are arranged in the shell, equipment to be cooled is accommodated in the accommodating cavity, an air inlet and an air outlet are arranged on the side wall of the accommodating cavity, and the condenser cavity is communicated with the accommodating cavity through the air outlet; the equipment to be radiated is positioned between the air inlet and the air outlet;
the condenser cavity is internally provided with a condenser and a fan, an outlet pipeline of the condenser is provided with a first throttling element, the first throttling element is connected with a refrigerant branch in parallel, the refrigerant branch comprises a second throttling element and a heat exchanger which are connected in series, the refrigerant which is distributed to the refrigerant branch can sequentially flow through the second throttling element and the heat exchanger, and the heat exchanger is positioned at the air inlet.
2. The outdoor unit of claim 1, wherein,
the accommodating cavity is an electrical box arranged in the shell, and the equipment to be cooled is an electric control board in the electrical box.
3. The outdoor unit of claim 1, wherein,
the accommodating cavity is an electrical box arranged in the shell, an electric control board is arranged in the electrical box, and a radiator is fixed on the electric control board; the equipment to be radiated is the radiator.
4. The outdoor unit of claim 1, wherein,
and a switch part is also connected in series on the refrigerant branch, and the switch part can control the opening and closing of the refrigerant branch.
5. The outdoor unit of claim 2 or 3, wherein,
the heat exchanger is located outside the electrical box.
6. The outdoor unit of claim 5, wherein,
and a mounting seat is fixed on the side wall of the electric appliance box close to the air inlet, and the heat exchanger is arranged on the mounting seat.
7. The outdoor unit of claim 6, wherein,
the heat exchanger is obliquely arranged relative to a horizontal plane;
and a water collecting area is arranged on the mounting seat and can collect condensed water on the heat exchanger.
8. The outdoor unit of claim 7, wherein,
the heat exchanger and the horizontal plane form an included angle of 45 degrees.
9. The outdoor unit of claim 1, wherein,
the first throttling element and/or the second throttling element is one of an electronic expansion valve, a thermal valve or a capillary tube.
10. The outdoor unit of claim 4, wherein,
the switch piece is one of an electromagnetic stop valve, a thermal stop valve or a mechanical stop valve.
11. An air conditioner characterized by comprising an indoor unit of an air conditioner and the outdoor unit of an air conditioner according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586632.XA CN106016508B (en) | 2016-07-22 | 2016-07-22 | Air condensing units and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586632.XA CN106016508B (en) | 2016-07-22 | 2016-07-22 | Air condensing units and air conditioner |
Publications (2)
| Publication Number | Publication Date |
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| CN106016508A CN106016508A (en) | 2016-10-12 |
| CN106016508B true CN106016508B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610586632.XA Active CN106016508B (en) | 2016-07-22 | 2016-07-22 | Air condensing units and air conditioner |
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| CN (1) | CN106016508B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131745A (en) * | 2017-12-22 | 2018-06-08 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit and air conditioning system |
| CN214676259U (en) * | 2020-08-26 | 2021-11-09 | 广东美的暖通设备有限公司 | Air conditioner and electric control box |
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| Publication number | Publication date |
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| CN106016508A (en) | 2016-10-12 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 528303 No. 8, Rong Gang Road, Ronggui street, Shunde District, Foshan, Guangdong. Applicant after: HISENSE HOME APPLIANCE GROUP Co.,Ltd. Applicant after: Hisense (Guangdong) Air Conditioning Co., Ltd. Address before: 528303 No. 8, Rong Gang Road, Ronggui street, Shunde District, Foshan, Guangdong. Applicant before: Hisense Kelon Electrical Holdings Co.,Ltd. Applicant before: Hisense (Guangdong) Air Conditioning Co., Ltd. |
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