CN108954562B - Outdoor unit of air conditioner and air conditioner with outdoor unit - Google Patents
Outdoor unit of air conditioner and air conditioner with outdoor unit Download PDFInfo
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- CN108954562B CN108954562B CN201810827008.3A CN201810827008A CN108954562B CN 108954562 B CN108954562 B CN 108954562B CN 201810827008 A CN201810827008 A CN 201810827008A CN 108954562 B CN108954562 B CN 108954562B
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- cooling
- air
- outlet
- control box
- heat exchanger
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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
- F24F1/24—Cooling of electric components
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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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- 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 with the same, wherein the air conditioner outdoor unit comprises: the outdoor unit comprises an outdoor unit shell, wherein a heat dissipation air channel communicated with the external environment is formed in the outdoor unit shell; the heat radiation fan is arranged in the heat radiation air channel; the electric control box assembly is arranged in the heat dissipation air duct; the cooling component is used for cooling the electric control box component and is provided with a cooling cavity, a refrigerant inlet and a refrigerant outlet, the refrigerant is suitable for flowing into the cooling cavity from the refrigerant inlet and flowing out from the refrigerant outlet, the cooling component is arranged in the heat dissipation air duct and is spaced from the electric control box component, and at least one part of the cooling component is positioned at the upstream of the electric control box component in the flowing direction of air flow in the heat dissipation air duct. The air conditioner outdoor unit provided by the invention can enhance the cooling effect on the power module, is favorable for improving the maintenance convenience of the electric control box assembly, and is favorable for reducing the condensation risk of the electric control box assembly.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air conditioner outdoor unit and an air conditioner with the same.
Background
For a high-power module in the electric control box assembly, the heating temperature of the power module during working is high, and effective cooling is needed to ensure the working stability of the power module. Among the correlation technique, the cooling member is flowed through to the refrigerant of low temperature low pressure among the refrigerating system, and the cooling member links to each other with automatically controlled box subassembly, and the refrigerant directly gets back to the compressor after with the power module heat transfer when flowing through the cooling member, and is good to the cooling effect of power module, nevertheless makes the convenient variation of maintenance of automatically controlled box subassembly to it is big to have increased the condensation risk of automatically controlled box subassembly, has the potential safety hazard.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the air conditioner outdoor unit which not only can enhance the cooling effect on the power module, but also is beneficial to improving the maintenance convenience of the electric control box assembly and simultaneously is beneficial to reducing the condensation risk of the electric control box assembly.
An outdoor unit for an air conditioner according to an embodiment of the present invention includes: the outdoor unit comprises an outdoor unit shell, a heat dissipation air duct and a heat dissipation fan, wherein the outdoor unit shell is internally provided with the heat dissipation air duct communicated with the external environment; the heat dissipation fan is arranged in the heat dissipation air channel; the electric control box assembly is arranged in the heat dissipation air duct; the cooling component is used for cooling the electronic control box assembly and is provided with a cooling cavity, a refrigerant inlet and a refrigerant outlet, the refrigerant is suitable for flowing into the cooling cavity from the refrigerant inlet and flowing out from the refrigerant outlet, the cooling component is arranged in the heat dissipation air duct and is spaced from the electronic control box assembly, and at least one part of the cooling component is positioned at the upstream of the electronic control box assembly in the flowing direction of air flow in the heat dissipation air duct.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the cooling component is arranged in the heat dissipation air duct and is spaced from the electric control box component, and at least one part of the cooling component is positioned at the upstream of the electric control box component in the air flow flowing direction in the heat dissipation air duct, so that when the air conditioner outdoor unit works, the refrigerant in the cooling component can exchange heat with the air near the electric control box component to reduce the temperature of the air flow flowing through the electric control box component, and further the cooling effect of the air flow on the electric control box component is favorably enhanced.
In some embodiments of the invention, the cooling element is a cooling tube and the cooling element extends in a curved or broken line.
In some embodiments of the invention, the electronic control box assembly comprises: the heat dissipation device comprises an electric control box and a heat radiator used for dissipating heat of a power module of the electric control box, wherein the electric control box is connected to the side wall of the heat dissipation air channel, and the heat radiator is arranged on the outer side of the electric control box and close to the central axis of the heat dissipation fan.
Optionally, in the direction of the airflow flowing in the heat dissipation air duct, a part of the cooling element is located upstream of the electronic control box and is disposed opposite to the electronic control box, and another part of the cooling element is located upstream of the heat sink and is disposed opposite to the heat sink.
In some optional embodiments of the present invention, an air inlet and an air outlet are formed on the electronic control box, in a direction of an air flow in the heat dissipation air duct, the air inlet is located upstream of the air outlet, and the air inlet and the air outlet are both communicated with the heat dissipation air duct and an inner cavity of the electronic control box.
In some embodiments of the present invention, the electronic control box assembly and the cooling assembly are both located on an air inlet side of the heat dissipation fan.
An air conditioner according to an embodiment of the present invention includes: the outdoor unit of the air conditioner comprises the outdoor unit casing, the heat dissipation fan, the electronic control box assembly, the cooling assembly, a compressor and an outdoor heat exchanger, wherein the compressor and the outdoor heat exchanger are arranged in the outdoor unit casing; the air conditioner indoor unit comprises an indoor unit shell, an indoor heat exchanger and a fan assembly, wherein an air inlet and an air outlet are formed in the indoor unit shell, the indoor heat exchanger and the fan assembly are arranged in the indoor unit shell, the compressor, the indoor heat exchanger and the outdoor heat exchanger are sequentially connected to form a refrigerant loop, a refrigerant inlet of the cooling piece is connected with an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger, and a refrigerant outlet of the cooling piece is connected with a gas return port of the compressor.
According to the air conditioner provided by the embodiment of the invention, by arranging the air conditioner outdoor unit, when the air conditioner works, the refrigerant in the cooling component can exchange heat with the air near the electric control box component to reduce the temperature of the air flow flowing through the electric control box component, so that the cooling effect of the air flow on the electric control box component is favorably enhanced.
In some embodiments of the invention, comprising: the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the gas return port of the compressor, the refrigerant inlet of the cooling piece is connected with the inlet of the low-pressure tank, and the refrigerant outlet of the cooling piece is connected with the outlet of the low-pressure tank.
In some embodiments of the invention, comprising: and the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the return air port of the compressor, and the cooling piece is connected on the inlet side of the low-pressure tank.
In some embodiments of the invention, comprising: and the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the air return port of the compressor, and the cooling part is connected on the outlet side of the low-pressure tank.
In some embodiments of the present invention, the cooling elements are connected in parallel, a refrigerant inlet of each cooling element is connected to an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger, and a refrigerant outlet of each cooling element is connected to a return air port of the compressor.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a partial structural view of an outdoor unit for an air conditioner according to an embodiment of the present invention;
fig. 2 is a partial structure view of another angle of an outdoor unit for an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic plan view according to FIG. 2;
FIG. 4 is a schematic cross-sectional view taken at A-A in FIG. 3;
fig. 5 is a schematic top view illustrating an outdoor unit for an air conditioner according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an air conditioner according to one embodiment of the present invention;
fig. 7 is a schematic view of an air conditioner according to another embodiment of the present invention;
fig. 8 is a schematic view of an air conditioner according to still another embodiment of the present invention.
Reference numerals:
an air conditioner 100;
an outdoor unit 10 of an air conditioner; an air inlet end 10 a; an air outlet end 10 b;
an outdoor unit casing 1; a heat dissipation air duct 1 a;
a heat radiation fan 2;
an electric control box component 3; an electronic control box 31; an intake port 311; an air outlet 312; a power module 32; a heat sink 33;
a cooling member 4; a refrigerant inlet 4 a; a refrigerant outlet 4 b; a straight pipe section 41; a bending section 42;
a low-pressure tank 5; an inlet side 51; an outlet side 52;
a compressor 6;
an outdoor heat exchanger 7;
a four-way valve 8; an exhaust interface 81; a return air interface 82; an indoor interface 83; an outdoor interface 84.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
An outdoor unit 10 for an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 5.
As shown in fig. 1 to 5, an outdoor unit 10 for an air conditioner according to an embodiment of the present invention may include an outdoor unit casing 1, a heat dissipation fan 2, an electric control box assembly 3, and a cooling member 4.
As shown in fig. 1 and 4, the outdoor unit casing 1 has a heat dissipation air duct 1a therein, which communicates with the outside environment. For example, the outdoor unit casing 1 is provided with an air inlet 10a and an air outlet 10b, and the air flow flows into the heat dissipation air duct 1a from the air inlet 10a and is discharged through the air outlet 10 b.
As shown in fig. 4, the heat dissipation fan 2 is disposed in the heat dissipation air duct 1a, the electronic control box assembly 3 is disposed in the heat dissipation air duct 1a, and the electronic control box assembly 3 may be located on an air inlet side of the heat dissipation fan 2 or on an air outlet side of the heat dissipation fan 3.
Referring to fig. 1 and 4, the cooling unit 4 is used for cooling the electronic control box assembly 3, and the cooling unit 4 has a cooling cavity, a refrigerant inlet 4a and a refrigerant outlet 4b, and a refrigerant is suitable for flowing into the cooling cavity from the refrigerant inlet 4a and flowing out from the refrigerant outlet 4b, where the refrigerant may be a low-temperature and low-pressure refrigerant in a refrigerant flow path of the air conditioner 100.
The cooling unit 4 is disposed in the heat dissipation air duct 1a and spaced apart from the electronic control box assembly 3, and at least a part of the cooling unit 4 is located upstream of the electronic control box assembly 3 in a direction in which an air flow in the heat dissipation air duct 1a flows (for example, at least a part of the cooling unit 4 is located below the electronic control box assembly 3 as shown in fig. 4). Here, "at least a part of the cooling member 4 is located upstream of the electronic control box assembly 3" may be understood as meaning that a part of the cooling member 4 is located upstream of the electronic control box assembly 3, or that the entire cooling member 4 is located upstream of the electronic control box assembly 3. For example, there may be the following three ways as to the arrangement positions of the cooling member 4, the electronic control box assembly 3, and the heat dissipation fan 3: the cooling part 4 and the electric control box component 3 are all positioned on the air inlet side of the cooling fan 2; secondly, the cooling component 4 and the electric control box component 3 are both positioned on the air outlet side of the cooling fan 2; and thirdly, the cooling component 4 is positioned at the air inlet side of the cooling fan 2, and the electric control box component 3 is positioned at the air outlet side of the cooling fan 2.
When the air conditioner outdoor unit 10 is in operation, under the drive of the cooling fan 2, the air flow of the external environment enters the cooling air duct 1a, then the air flow exchanges heat with the refrigerant in the cooling component 4 to reduce the temperature of the air near the electric control box component 3, thereby reducing the temperature of the air flow flowing through the electric control box component 3, further being beneficial to enhancing the cooling effect of the air flow on the electric control box component 3, and because the cooling component 4 is not in direct contact with the electric control box component 3, on one hand, the temperature of the electric control box component 3 is favorably prevented from being rapidly reduced, thereby being beneficial to reducing the condensation risk of the electric control box component 3, on the other hand, when the electric control box component 3 is maintained, the cooling component 4 is not needed to be disassembled and assembled, and the maintenance convenience.
According to the outdoor unit 10 of the air conditioner of the embodiment of the present invention, by disposing the cooling unit 4 in the heat dissipation duct 1a and spaced apart from the electric control box assembly 3, and at least one part of the cooling component 4 is positioned at the upstream of the electric control box component 3 in the flowing direction of the air flow in the heat dissipation air duct 1a, therefore, when the outdoor unit 10 of the air conditioner is working, the refrigerant in the cooling unit 4 exchanges heat with the air near the electric control box assembly 3 to reduce the temperature of the air flow passing through the electric control box assembly 3, further being beneficial to enhancing the cooling effect of the air flow on the electric control box component 3, and being beneficial to avoiding the rapid temperature reduction of the electric control box component 3 on the one hand because the cooling component 4 is not in direct contact with the electric control box component 3, thereby be favorable to reducing the condensation risk of automatically controlled box subassembly 3, on the other hand when the automatically controlled box subassembly 3 of maintenance, needn't dismouting cooling part 4, be favorable to improving the maintenance convenience of automatically controlled box subassembly 3.
In some embodiments of the present invention, as shown with reference to fig. 1, the cooling member 4 is a cooling pipe, and the cooling member 4 extends in a curved line or a broken line. From this, be favorable to increasing the heat transfer area of cooling part 4 and the adjacent air of automatically controlled box subassembly 3 to be favorable to further reducing the temperature of the air current of flowing through automatically controlled box subassembly 3, and then be favorable to strengthening the cooling effect of air current to automatically controlled box subassembly 3. For example, as shown in fig. 1, the cooling member 4 is formed in a curved line, and the cooling member 4 includes a plurality of straight tube sections 41 side by side and a bent section 42 sequentially communicating with two adjacent straight tube sections 41.
In some embodiments of the present invention, referring to fig. 4, the electronic control box assembly 3 comprises: the electronic control box 31 and the radiator 33 are used for radiating the power module 32 of the electronic control box 31, the electronic control box 31 is connected to the side wall of the radiating air duct 1a, and the radiator 33 is arranged outside the electronic control box 31 and adjacent to the central axis of the radiating fan 2. Therefore, the radiator 33 is arranged outside the electronic control box 31, so that the radiator 33 can be directly contacted with the air flow in the heat dissipation air duct 1a, the heat exchange effect between the radiator 33 and the air flow in the heat dissipation air duct 1a is favorably enhanced, the heat dissipation effect on the power module 32 of the electronic control box 31 is further enhanced, meanwhile, the air volume of the heat dissipation air duct 1a close to the central axis of the heat dissipation fan 2 is large, the heat exchange effect between the radiator 33 and the air flow in the heat dissipation air duct 1a is favorably further enhanced through arranging the radiator 33 close to the central axis of the heat dissipation fan 2, and the heat dissipation effect on the power module 32 of the electronic control box 31 is further enhanced.
Alternatively, as shown in fig. 4, in the direction of the airflow flowing in the heat dissipation air duct 1a, a part of the cooling member 4 is located upstream of the electronic control box 31 and is disposed opposite to the electronic control box 31, and another part of the cooling member 4 is located upstream of the radiator 33 and is disposed opposite to the radiator 33. Therefore, the cooling element 4 can not only reduce the temperature of the air flow flowing through the electronic control box 31 to enhance the cooling effect of the air flow on the electronic control box 31, but also reduce the temperature of the air flow flowing through the heat sink 33 to enhance the cooling effect on the heat sink 33, thereby being beneficial to further improving the cooling effect on the electronic control box 3.
In some alternative embodiments of the present invention, referring to fig. 4, the electronic control box 31 is formed with an air inlet 311 and an air outlet 312, in the direction of the airflow flowing in the heat dissipation air duct 1a, the air inlet 311 is located upstream of the air outlet 312 (for example, as shown in fig. 4, the air inlet 311 is located below the air outlet 312), and both the air inlet 311 and the air outlet 312 communicate with the heat dissipation air duct 1a and the inner cavity of the electronic control box 31. Therefore, the air after heat exchange with the cooling element 4 can flow into the inner cavity of the electronic control box 31 through the air inlet 311, and then flows back to the heat dissipation air duct 1a through the air outlet 312 after heat exchange with the power module 32 of the electronic control box 31, so as to further improve the cooling effect of the electronic control box assembly 3.
In some embodiments of the present invention, as shown in fig. 4, the electronic control box assembly 3 and the cooling unit 4 are both located on the air inlet side of the cooling fan 2. It can be understood that the heat dissipation fan 2 is generally disposed on the outdoor unit casing 1, and the air inlet side of the heat dissipation fan 2 is located in the outdoor unit casing 1, so that the electronic control box assembly 3 and the cooling unit 4 are both located on the air inlet side of the heat dissipation fan 2, thereby facilitating the arrangement of the electronic control box assembly 3 and the cooling unit 4.
As shown in fig. 1 to 8, an air conditioner 100 according to an embodiment of the present invention may include an outdoor unit 10 and an indoor unit (not shown) according to the above-described embodiment of the present invention.
Referring to fig. 4 and 6 to 8, the outdoor unit 10 of the air conditioner may include an outdoor unit casing 1, a cooling fan 2, an electric control box assembly 3, a cooling unit 4, a compressor 6, and an outdoor heat exchanger 7, the compressor 6 and the outdoor heat exchanger 7 being provided in the outdoor unit casing 1.
The indoor unit of the air conditioner can comprise an indoor unit shell, an indoor heat exchanger and a fan assembly, wherein an air inlet and an air outlet are formed in the indoor unit shell, the indoor heat exchanger and the fan assembly are arranged in the indoor unit shell, when the indoor unit of the air conditioner works, indoor air flow can flow into the indoor unit shell through the air inlet, and is discharged through the air outlet after heat exchange with the indoor heat exchanger so as to adjust the temperature of an indoor environment. The compressor 6, the indoor heat exchanger and the outdoor heat exchanger 7 are connected in sequence to form a refrigerant loop, a refrigerant inlet 4a of the cooling element 4 is connected with an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger 7, and a refrigerant outlet 4b of the cooling element 4 is connected with a gas return port of the compressor 6. It is understood that when the air conditioner 100 cools, the low-temperature and low-pressure refrigerant in the refrigerant flow path of the air conditioner 100 may flow out of the outlet of the indoor heat exchanger, then flow to the cooling member 4, and then flow into the return port of the compressor 6; alternatively, when the air conditioner 100 heats, the low-temperature and low-pressure refrigerant in the refrigerant flow path of the air conditioner 100 may flow out of the outlet of the exterior heat exchanger 7, then flow to the cooling element 4, and then flow into the return port of the compressor 6.
For example, when the air conditioner 100 is a single-cooling type air conditioner, the compressor 6, the outdoor heat exchanger 7, and the indoor heat exchanger are connected in sequence to form a refrigerant circuit, the refrigerant inlet 4a of the cooling element 4 is connected to the outlet of the indoor heat exchanger, and the refrigerant outlet 4b of the cooling element 4 is connected to the return air port of the compressor 6. When the air conditioner 100 works, the refrigerant in the compressor 6 flows through the outdoor heat exchanger 7 and the indoor heat exchanger in sequence, then flows to the cooling part 4, then flows into the air return port of the compressor 6, and circulates by the way, wherein the refrigerant flowing through the cooling part 4 is a low-temperature and low-pressure refrigerant, and can exchange heat with air near the electric control box assembly 3 when flowing through the cooling part 4, so that the cooling effect of air flow on the electric control box assembly 3 is enhanced;
for another example, when the air conditioner 100 is a cooling and heating air conditioner, the air conditioner 100 further includes a four-way valve 8, the four-way valve 8 includes an exhaust interface 81, an air return interface 82, an indoor interface 83, and an outdoor interface 84, the exhaust interface 81 is communicated with one of the indoor interface 83 and the outdoor interface 84, the air return interface 82 is communicated with the other of the indoor interface 83 and the outdoor interface 84, the exhaust interface 81 is connected with an exhaust port of the compressor 6, the air return interface 82 is connected with a refrigerant inlet 4a of the cooling element 4, a refrigerant outlet 4b of the cooling element 4 is connected with an air return port of the compressor 6, the indoor interface 83 is connected with a first end of the indoor heat exchanger, the outdoor interface 84 is connected with a first end of the outdoor heat exchanger 7, and a second end of the indoor heat exchanger is connected with a second end of the outdoor heat exchanger. When the air conditioner 100 is refrigerating, the refrigerant flows out of the first end of the indoor heat exchanger and then flows to the cooling element 4, that is, the first end of the indoor heat exchanger is an outlet of the indoor heat exchanger; when the air conditioner 100 heats, the refrigerant flows out of the first end of the outdoor heat exchanger 7 to the cooling element 4, that is, the first end of the outdoor heat exchanger 7 is the outlet of the outdoor heat exchanger 7.
When the air conditioner 100 is used for cooling, as shown in fig. 6-8, the exhaust interface 81 is switched to be communicated with the outdoor interface 84, the air return interface 82 is switched to be communicated with the indoor interface 83, and a refrigerant in the compressor 6 sequentially flows through the exhaust interface 81, the outdoor interface 84, the outdoor heat exchanger 7, the second end of the indoor heat exchanger, the first end of the indoor heat exchanger, the indoor interface 83 and the air return interface 82, flows to the cooling element 4, then flows into an air return port of the compressor 6, and circulates in this way, wherein the refrigerant flowing through the cooling element 4 is a low-temperature and low-pressure refrigerant, and exchanges heat with air near the electronic control box element 3 when flowing through the cooling element 4, so as to enhance the cooling effect of the electronic control box element 3 by airflow;
when the air conditioner 100 heats, the exhaust interface 81 is switched to be communicated with the indoor interface 83, the air return interface 82 is switched to be communicated with the outdoor interface 84, and the refrigerant in the compressor 6 flows to the cooling element 4 after sequentially flowing through the exhaust interface 81, the indoor interface 83, the indoor heat exchanger, the second end of the outdoor heat exchanger 7, the first end of the outdoor heat exchanger 7, the outdoor interface 84 and the air return interface 82, and then flows into the air return port of the compressor 6, and circulates by the way, wherein the refrigerant flowing through the cooling element 4 is a low-temperature and low-pressure refrigerant, and can exchange heat with the air near the electric control box assembly 3 when flowing through the cooling element 4, so that the cooling effect of the air flow on the electric control box assembly 3 is enhanced.
According to the air conditioner 100 provided by the embodiment of the invention, by arranging the air conditioner outdoor unit 10, when the air conditioner 100 works, the refrigerant in the cooling component 4 exchanges heat with the air near the electric control box component 3 to reduce the temperature of the air flow flowing through the electric control box component 3, so that the cooling effect of the air flow on the electric control box component 3 is favorably enhanced, and the cooling component 4 is not in direct contact with the electric control box component 3, so that the rapid reduction of the temperature of the electric control box component 3 is favorably avoided, the condensation risk of the electric control box component 3 is favorably reduced, and the cooling component 4 is not required to be disassembled and assembled when the electric control box component 3 is maintained, so that the maintenance convenience of the electric control box component 3 is favorably improved.
In some embodiments of the present invention, as shown in fig. 6, the air conditioner 100 includes a low pressure tank 5, an inlet of the low pressure tank 5 is connected to an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger 7, an outlet of the low pressure tank 5 is connected to a return air port of the compressor 6, a refrigerant inlet 4a of the cooling member 4 is connected to an inlet of the low pressure tank 5, and a refrigerant outlet 4b of the cooling member 4 is connected to an outlet of the low pressure tank 5. The low pressure tank 5 may store a portion of refrigerant in a refrigerant circuit of the air conditioner 100 to adjust the amount of refrigerant in the refrigerant circuit, so that the air conditioner 100 may adapt to different operating modes. Thus, the cooling member 4 can utilize the pressure loss between the inlet side 51 and the outlet side 52 of the low pressure tank 5, thereby ensuring the pressure loss between the refrigerant inlet 4a and the refrigerant outlet 4b of the cooling member 4, and thus facilitating the flow rate of the refrigerant flowing through the cooling member 4.
In some embodiments of the present invention, as shown in fig. 7, the air conditioner 100 includes a low pressure tank 5, an inlet of the low pressure tank 5 is connected to an outlet of an indoor heat exchanger or an outlet of an outdoor heat exchanger 7, an outlet of the low pressure tank 5 is connected to a return port of a compressor 6, and a cooling member 4 is connected to an inlet side 51 of the low pressure tank 5. The low pressure tank 5 may store a portion of refrigerant in a refrigerant circuit of the air conditioner 100 to adjust the amount of refrigerant in the refrigerant circuit, so that the air conditioner 100 may adapt to different operating modes. Thus, the cooling part 4 can utilize the pressure loss of the inlet side 51 of the low pressure tank 5, thereby ensuring the pressure loss between the refrigerant inlet 4a and the refrigerant outlet 4b of the cooling part 4, and being beneficial to ensuring the flow rate of the refrigerant flowing through the cooling part 4. For example, referring to fig. 7, the cooling element 4 is connected in series in the flow path between the return air port 82 and the inlet of the low-pressure tank 5; alternatively, as shown in fig. 7, the cooling member 4 is connected in parallel to a part of the flow path between the return air port 82 and the inlet of the low pressure tank 5.
In some embodiments of the present invention, as shown in fig. 8, the air conditioner 100 includes a low pressure tank 5, an inlet of the low pressure tank 5 is connected to an outlet of an indoor heat exchanger or an outlet of an outdoor heat exchanger 7, an outlet of the low pressure tank 5 is connected to a return port of a compressor 6, and a cooling member 4 is connected to an outlet side 52 of the low pressure tank 5. The low pressure tank 5 may store a portion of refrigerant in a refrigerant circuit of the air conditioner 100 to adjust the amount of refrigerant in the refrigerant circuit, so that the air conditioner 100 may adapt to different operating modes. Thus, the pressure loss of the outlet side 52 of the low-pressure tank 5 can be utilized by the cooling element 4, so that the pressure loss between the refrigerant inlet 4a and the refrigerant outlet 4b of the cooling element 4 is ensured, thereby being beneficial to ensuring the flow rate of the refrigerant flowing through the cooling element 4. For example, referring to fig. 8, the cooling element 4 is connected in series in the flow path between the outlet of the low-pressure tank 5 and the return port of the compressor 6; alternatively, as shown in fig. 8, the cooling element 4 is connected in parallel to a part of the flow path between the outlet of the low-pressure tank 5 and the return port of the compressor 6.
It should be noted that, as for the "inlet of the low pressure tank 5 is connected to the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger 7" described in the above embodiments, there are two cases, for example, when the air conditioner 100 is a single-cooling type air conditioner, the inlet of the low pressure tank 5 is connected to the outlet of the indoor heat exchanger, and the outlet of the low pressure tank 5 is connected to the return port of the compressor 6; as another example, as shown in fig. 6 to 8, when the air conditioner 100 is a heating and cooling type air conditioner, the return air port 82 is connected to the inlet of the low pressure tank 5, and the outlet of the low pressure tank 5 is connected to the return air port of the compressor 6. When the air conditioner 100 is refrigerating, the air return interface 82 is switched to be connected with the indoor interface 83, and at the moment, the inlet of the low-pressure tank 5 is connected with the outlet of the indoor heat exchanger through the air return interface 82 and the indoor interface 83; when the air conditioner 100 heats, the return air port 82 is switched to be connected to the outdoor port 84, and the inlet of the low pressure tank 5 is connected to the outlet of the outdoor heat exchanger 7 through the return air port 82 and the outdoor port 84.
In some embodiments of the present invention, referring to fig. 4 and 6, the cooling members 4 are connected in parallel, a refrigerant inlet 4a of each cooling member 4 is connected to an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger 7, and a refrigerant outlet 4b of each cooling member 4 is connected to a return port of the compressor 6. From this, be favorable to increasing the heat transfer area of cooling part 4 and the adjacent air of automatically controlled box subassembly 3 to be favorable to further reducing the temperature of the air current of flowing through automatically controlled box subassembly 3, and then be favorable to strengthening the cooling effect of air current to automatically controlled box subassembly 3.
The detailed structure of the outdoor unit 10 and the air conditioner 100 having the same according to some embodiments of the present invention will be described in detail with reference to fig. 1 to 8. It is to be understood, of course, that the following description is intended to illustrate the invention and not to limit the invention.
The first embodiment,
As shown in fig. 1 to 6, an outdoor unit 10 for an air conditioner according to an embodiment of the present invention includes an outdoor unit casing 1, a heat dissipation fan 2, an electric control box assembly 3, a cooling unit 4, a compressor 6, a low pressure tank 5, a four-way valve 8, and an outdoor heat exchanger 7, wherein the compressor 6, the low pressure tank 5, and the outdoor heat exchanger 7 are disposed in the outdoor unit casing 1.
As shown in fig. 4, a heat dissipation air duct 1a communicating with the external environment is provided in the outdoor unit casing 1, the heat dissipation fan 2 is provided in the heat dissipation air duct 1a, the electronic control box assembly 3 and the cooling element 4 are both provided in the heat dissipation air duct 1a and located below the heat dissipation fan 2, and the electronic control box assembly 3 and the cooling element 4 are both located at the upstream of the heat dissipation fan 2 in the direction of air flow in the heat dissipation air duct 1 a.
As shown in fig. 4, the electronic control box assembly 3 includes an electronic control box 31 and a heat sink 33 for dissipating heat of the power module 32 of the electronic control box 31, the electronic control box 31 is connected to a side wall of the heat dissipation air duct 1a, an air inlet 311 and an air outlet 312 are formed on the electronic control box 31, the air inlet 311 is located upstream of the air outlet 312 in the air flow direction in the heat dissipation air duct 1a, the air inlet 311 and the air outlet 312 are both communicated with the heat dissipation air duct 1a and an inner cavity of the electronic control box 31, and the heat sink 33 is disposed outside the electronic control box 31 and adjacent to the central axis of the heat dissipation fan 2.
As shown in fig. 1 and 4, the cooling element 4 is configured to cool the electronic control box assembly 3, the cooling element 4 includes three parallel straight tube sections 41 and a bending section 42 sequentially communicated with two adjacent straight tube sections 41, the cooling element 4 has a cooling cavity, a refrigerant inlet 4a and a refrigerant outlet 4b, a low-temperature and low-pressure refrigerant is suitable for flowing into the cooling cavity from the refrigerant inlet 4a and flowing out from the refrigerant outlet 4b, the cooling element 4 is disposed in the heat dissipation air duct 1a and spaced apart from the electronic control box assembly 3, in a direction of airflow flowing in the heat dissipation air duct 1a, a part of the cooling element 4 is located upstream of the electronic control box 31 and is disposed opposite to the electronic control box 31, and another part of the cooling element 4 is located upstream of the heat sink 33 and is disposed opposite to the heat sink 33.
As shown in fig. 1 to 6, an air conditioner 100 according to an embodiment of the present invention includes an outdoor unit 10 and an indoor unit according to the above-described embodiment of the present invention.
The indoor unit of the air conditioner comprises an indoor unit shell, an indoor heat exchanger and a fan assembly, wherein an air inlet and an air outlet are formed in the indoor unit shell, the indoor heat exchanger and the fan assembly are arranged in the indoor unit shell, when the indoor unit of the air conditioner works, indoor air flow can flow into the indoor unit shell through the air inlet, and is discharged through the air outlet after exchanging heat with the indoor heat exchanger so as to adjust the temperature of an indoor environment.
As shown in fig. 6, the four-way valve 8 includes an exhaust port 81, a return port 82, an indoor port 83, and an outdoor port 84, the exhaust port 81 is in switching communication with one of the indoor port 83 and the outdoor port 84, the return port 82 is in switching communication with the other of the indoor port 83 and the outdoor port 84, the exhaust port 81 is connected to an exhaust port of the compressor 6, the return port 82 is connected to a return port of the compressor 6, the indoor port 83 is connected to a first end of the indoor heat exchanger, the outdoor port 84 is connected to a first end of the outdoor heat exchanger 7, and a second end of the indoor heat exchanger is connected to a second end of the outdoor heat exchanger 7.
As shown in fig. 6, an inlet of the low pressure tank 5 is connected to a return air port 82 of the four-way valve 8, an outlet of the low pressure tank 5 is connected to a return air port of the compressor 6, a refrigerant inlet 4a of the cooling member 4 is connected to an inlet of the low pressure tank 5, and a refrigerant outlet 4b of the cooling member 4 is connected to an outlet of the low pressure tank 5.
When the air conditioner 100 is used for refrigerating, the exhaust interface 81 is switched to be communicated with the outdoor interface 84, the air return interface 82 is switched to be communicated with the indoor interface 83, and a refrigerant in the compressor 6 sequentially flows through the exhaust interface 81, the outdoor interface 84, the outdoor heat exchanger 7, the indoor heat exchanger, the indoor interface 83 and the air return interface 82, then flows to the cooling component 4 and the low-pressure tank 5, then flows into an air return port of the compressor 6, and circulates by the air return port, wherein the refrigerant can exchange heat with air near the electric control box component 3 when flowing through the cooling component 4, and further the cooling effect of airflow on the electric control box component 3 is enhanced;
when the air conditioner 100 heats, the exhaust port 81 is switched to be communicated with the indoor port 83, the air return port 82 is switched to be communicated with the outdoor port 84, and a refrigerant in the compressor 6 flows through the exhaust port 81, the indoor port 83, the indoor heat exchanger, the outdoor heat exchanger 7, the outdoor port 84 and the air return port 82 in sequence, flows to the cooling unit 4 and the low-pressure tank 5, then flows into an air return port of the compressor 6, and circulates in the manner, wherein the refrigerant exchanges heat with air near the electric control box assembly 3 when flowing through the cooling unit 4, and further the cooling effect of air flow on the electric control box assembly 3 is enhanced.
Example II,
The air conditioner 100 of the present embodiment is substantially the same as the air conditioner 100 of the first embodiment, and the differences are only that: as shown in fig. 7, the cooling element 4 is connected in parallel to a part of the flow path between the return air connection 82 and the inlet of the low-pressure tank 5.
Example III,
The air conditioner 100 of the present embodiment is substantially the same as the air conditioner 100 of the first embodiment, and the differences are only that: as shown in fig. 8, the cooling element 4 is connected in parallel to a part of the flow path between the outlet of the low-pressure tank 5 and the return port of the compressor 6.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. An outdoor unit for an air conditioner, comprising:
the outdoor unit comprises an outdoor unit shell, a heat dissipation air duct and a heat dissipation fan, wherein the outdoor unit shell is internally provided with the heat dissipation air duct communicated with the external environment;
the heat dissipation fan is arranged in the heat dissipation air channel;
the electric control box assembly is arranged in the heat dissipation air duct;
the cooling component is used for cooling the electronic control box assembly and is provided with a cooling cavity, a refrigerant inlet and a refrigerant outlet, the refrigerant is suitable for flowing into the cooling cavity from the refrigerant inlet and flowing out from the refrigerant outlet, the cooling component is arranged in the heat dissipation air duct and is spaced from the electronic control box assembly, and at least one part of the cooling component is positioned at the upstream of the electronic control box assembly in the flowing direction of air flow in the heat dissipation air duct.
2. The outdoor unit of claim 1, wherein the cooling member is a cooling pipe, and the cooling member is extended in a curved line or a broken line.
3. The outdoor unit of claim 1, wherein the electric control box assembly comprises: the heat dissipation device comprises an electric control box and a heat radiator used for dissipating heat of a power module of the electric control box, wherein the electric control box is connected to the side wall of the heat dissipation air channel, and the heat radiator is arranged on the outer side of the electric control box and close to the central axis of the heat dissipation fan.
4. The outdoor unit of claim 3, wherein a portion of the cooling member is located upstream of and opposite to the electrical control box, and another portion of the cooling member is located upstream of and opposite to the heat sink, in a direction of flow of the air flow in the heat dissipation duct.
5. The outdoor unit of claim 3, wherein the electric control box has an air inlet and an air outlet, the air inlet is located upstream of the air outlet in the direction of the air flow in the heat dissipation air duct, and the air inlet and the air outlet are both communicated with the heat dissipation air duct and the inner cavity of the electric control box.
6. The outdoor unit of any one of claims 1 to 5, wherein the electric control box assembly and the cooling assembly are disposed at an air inlet side of the cooling fan.
7. An air conditioner, comprising:
the outdoor unit of any one of claims 1 to 6, comprising the outdoor unit casing, the cooling fan, the electric control box assembly, the cooling member, a compressor, and an outdoor heat exchanger, the compressor and the outdoor heat exchanger being disposed in the outdoor unit casing;
the indoor unit of the air conditioner comprises an indoor unit shell, an indoor heat exchanger and a fan assembly, wherein an air inlet and an air outlet are formed on the indoor unit shell, the indoor heat exchanger and the fan assembly are arranged in the indoor unit shell,
the compressor, the indoor heat exchanger and the outdoor heat exchanger are sequentially connected to form a refrigerant loop, a refrigerant inlet of the cooling piece is connected with an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger, and a refrigerant outlet of the cooling piece is connected with a gas return port of the compressor.
8. The air conditioner as claimed in claim 7, comprising: the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the gas return port of the compressor, the refrigerant inlet of the cooling piece is connected with the inlet of the low-pressure tank, and the refrigerant outlet of the cooling piece is connected with the outlet of the low-pressure tank.
9. The air conditioner as claimed in claim 7, comprising: and the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the return air port of the compressor, and the cooling piece is connected on the inlet side of the low-pressure tank.
10. The air conditioner as claimed in claim 7, comprising: and the inlet of the low-pressure tank is connected with the outlet of the indoor heat exchanger or the outlet of the outdoor heat exchanger, the outlet of the low-pressure tank is connected with the air return port of the compressor, and the cooling part is connected on the outlet side of the low-pressure tank.
11. The air conditioner according to any one of claims 7 to 10, wherein the cooling members are plural in parallel connection, a refrigerant inlet of each of the cooling members is connected to an outlet of the indoor heat exchanger or an outlet of the outdoor heat exchanger, and a refrigerant outlet of each of the cooling members is connected to a return air port of the compressor.
Priority Applications (1)
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| CN201810827008.3A CN108954562B (en) | 2018-07-25 | 2018-07-25 | Outdoor unit of air conditioner and air conditioner with outdoor unit |
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| CN201810827008.3A CN108954562B (en) | 2018-07-25 | 2018-07-25 | Outdoor unit of air conditioner and air conditioner with outdoor unit |
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| CN108954562A CN108954562A (en) | 2018-12-07 |
| CN108954562B true CN108954562B (en) | 2021-02-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006107B (en) * | 2019-05-05 | 2024-07-09 | 珠海格力电器股份有限公司 | Outdoor unit and air conditioner with same |
| CN110986192A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Electrical apparatus box heat abstractor reaches outer machine of air-conditioner and air conditioner including it |
| CN113757826B (en) * | 2020-06-05 | 2024-08-27 | 青岛海信日立空调系统有限公司 | Top-air type air conditioner outdoor unit |
| CN113465044B (en) * | 2021-06-11 | 2022-12-27 | 青岛海尔空调电子有限公司 | Outdoor unit of air conditioner |
| KR20240023132A (en) * | 2022-06-06 | 2024-02-20 | 지디 미디어 히팅 엔드 벤틸레이팅 이큅먼트 코 엘티디 | Indoor unit of air conditioner |
| CN218237797U (en) * | 2022-06-06 | 2023-01-06 | 广州视源电子科技股份有限公司 | Air conditioner indoor unit control panel, air conditioner control system and air conditioner indoor unit |
| KR20240155938A (en) * | 2022-08-27 | 2024-10-29 | 지디 미디어 히팅 엔드 벤틸레이팅 이큅먼트 코 엘티디 | Air conditioning unit |
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| CN108954562A (en) | 2018-12-07 |
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