CN215446674U - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
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- CN215446674U CN215446674U CN202121558835.0U CN202121558835U CN215446674U CN 215446674 U CN215446674 U CN 215446674U CN 202121558835 U CN202121558835 U CN 202121558835U CN 215446674 U CN215446674 U CN 215446674U
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- heating pipe
- outdoor unit
- radiator
- power module
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Abstract
The utility model discloses an air conditioner outdoor unit which comprises an electric appliance box and a radiator, wherein a power module is arranged in the electric appliance box, the radiator comprises a radiating base plate, a plurality of fins are arranged on the radiating base plate, the upper surface of the radiating base plate is in contact with the power module, a heating pipe is arranged on the radiating base plate, and the heating pipe is used for heating the radiator when the temperature of the radiator is lower than the dew point temperature of the electric appliance box. The radiator can realize the heat dissipation of the power module, can avoid condensation of the power module and the electrical appliance box under the low-temperature heating working condition, and improves the operation reliability of the electrical appliance box and the air conditioner outdoor unit.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit.
Background
The electrical box is generally arranged in the air conditioner outdoor unit, the core component in the electrical box is a power module, the power module is also a core heating source of the air conditioner outdoor unit, and the working efficiency determines the working efficiency and quality of the air conditioner. Under the air conditioner running state, power module can produce a large amount of heats, if can not in time with these heats dissipation, high temperature can influence electrical components's life and even produce the damage, causes the unit can not normal operating, so need carry out the heat dissipation to power module and handles. In the prior art, a heat sink is generally used to dissipate heat of a power module.
And under the air conditioner low temperature condition of heating, the cold wind that blows out through outdoor heat exchanger is generally less than outdoor ambient temperature, even reaches under zero, under this condition, if the load is less this moment, the heat that power module produced is less, and the heat is taken away by a large amount when cold wind is cooled down for power module through the radiator, will lead to power module's temperature to be less than ambient temperature and produce the condensation to lead to risks such as short circuit even burnout.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air conditioner outdoor unit, aiming at the problems pointed out in the background art, wherein a radiator can realize the heat dissipation of a power module, can prevent the power module and an electric appliance box from being condensed under the working condition of low-temperature heating, and improves the operation reliability of the electric appliance box and the air conditioner outdoor unit.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
in some embodiments of the present application, an outdoor unit of an air conditioner is provided, including:
the electric appliance box is internally provided with a power module;
the radiator comprises a radiating base plate, a plurality of fins are arranged on the radiating base plate, the upper surface of the radiating base plate is in contact with the power module, a heating pipe is arranged on the radiating base plate, and the heating pipe is used for heating the radiator when the temperature of the radiator is lower than the dew point temperature of the electric appliance box.
In some embodiments of the present application, a heating pipe branch is disposed in a refrigeration system where the outdoor unit of the air conditioner is located, the heating pipe branch is provided with the heating pipe and the check valve, and after the check valve is opened, a high temperature refrigerant flows through the heating pipe.
In some embodiments of the present application, an electromagnetic valve is further disposed on the heating pipe branch.
In some embodiments of the present application, be equipped with first temperature sensor on the radiator, be equipped with second temperature sensor and humidity transducer in the electrical apparatus box.
In some embodiments of the present application, the heat pipe has a portion exposed from an upper surface of the heat-dissipating substrate.
In some embodiments of the present application, a clamping groove is formed in an upper surface of the heat dissipation substrate, and the heating pipe is clamped in the clamping groove.
In some embodiments of the present application, the upper surface of the heating pipe is planar and is located on the same plane as the upper surface of the heat dissipation substrate.
In some embodiments of the present application, the heating pipe is disposed on the heat dissipation substrate in a bent shape, and the inlet end and the outlet end of the heating pipe extend out from the same side of the heat dissipation substrate.
In some embodiments of the present application, the heat dissipation substrate is formed by processing an aluminum plate or a copper plate.
In some embodiments of the present application, the heat sink further comprises a fan, and the heat sink is disposed in an active wind field of the fan.
Compared with the prior art, the utility model has the advantages and positive effects that:
this application solves the problem that power module and electrical apparatus box condensation under the operating mode are heated to low temperature through the heating pipe, under the heating operating condition, if the temperature of radiator is less than the dew point temperature of electrical apparatus box, the condensation may take place for power module, the heating pipe begins work this moment, the heating pipe heats the radiator, improve the temperature of radiator, weaken the radiating effect of radiator to power module, and then reach the effect that improves power module temperature, avoid power module temperature to hang down and produce the condensation, avoid the condensation phenomenon of power module and electrical apparatus box, improve the operational reliability of electrical apparatus box and air condensing units.
The heating pipe is started only when the temperature of the radiator is lower than the dew point temperature of the electric appliance box, and the radiating effect of the radiator on the power module under the normal working condition is not influenced.
The radiator of this application can realize the better heat dissipation effect to power module on the one hand, and on the other hand can avoid power module and electrical apparatus box to produce the condensation when the operating mode is heated to the low temperature through the setting of heating pipe again, improve equipment's operational reliability.
Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment;
fig. 2 is a schematic diagram of a refrigeration system in an outdoor unit of an air conditioner according to an embodiment;
FIG. 3 is a schematic diagram of a heat sink according to an embodiment;
fig. 4 is a schematic structural view of the structure shown in fig. 3 without the heating pipe.
Reference numerals:
1-a compressor, 2-a heat exchanger, 3-a four-way valve, 4-a fan, 5-a gas-liquid separator, 6-a filter, 7-an electronic expansion valve and 8-a one-way valve;
100-an electrical box;
200-radiator, 210-radiating substrate, 211-clamping groove, 220-fin, 230-heating tube, 231-inlet end and 232-outlet end.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The utility model discloses an air conditioner outdoor unit, which comprises a compressor, a heat exchanger, a system pipeline, a fan, an electric appliance box and the like which are arranged in a shell according to a reference figure 1.
The electric box 100 is mounted in a top-mount manner, and a power module (not shown) is provided in the electric box 100.
The outdoor unit of an air conditioner further includes a heat sink 200, referring to fig. 3 and 4, which includes a heat dissipation substrate 210, a plurality of fins 220 are disposed on the heat dissipation substrate 210, and an upper surface of the heat dissipation substrate 210 contacts the power module.
The heat generated by the power module is conducted to the fins 220 through the heat dissipation substrate 210, and then dissipated through the fins 220, so as to realize the heat dissipation and cooling of the power module.
The heat dissipating substrate 210 is further provided with a heating pipe 230, and the heating pipe 230 is used for heating the heat sink 200 when the temperature of the heat sink 200 is lower than the dew point temperature of the electrical box 100.
Specifically, the air conditioner heats under the operating mode at low temperature, because the cold wind that blows off through outdoor heat exchanger generally is less than and is less than outdoor ambient temperature, if the load is less this moment, the heat that the power module produced is less, and the heat is taken away by a large amount when the cold wind is cooled down for the power module through radiator 200, will lead to the temperature of power module to be less than ambient temperature and produce the condensation to lead to risks such as short circuit even burning out.
This application solves above-mentioned problem through heating pipe 230, under the heating operating condition, if the temperature of radiator 200 is less than the dew point temperature of electrical apparatus box 100, the power module can take place the condensation, heating pipe 230 begins work this moment, heating pipe 230 heats radiator 200, improve the temperature of radiator 200, weaken radiator 200 to the radiating effect of power module, and then reach the effect that improves the power module temperature, avoid the power module temperature to hang down and produce the condensation, avoid the condensation phenomenon of power module and electrical apparatus box, improve the operational reliability of electrical apparatus box and air condensing units.
The heating pipe 230 is only activated when the temperature of the radiator 200 is lower than the dew point temperature of the electrical box 100, and the heat radiation effect of the radiator 200 on the power module under the normal working condition is not affected.
The radiator of this application can realize the better heat dissipation effect to power module on the one hand, and on the other hand can avoid power module and electrical apparatus box to produce the condensation when the operating mode is heated to the low temperature through the setting of heating pipe 230 again, improve equipment's operational reliability.
In some embodiments of the present application, a first temperature sensor is disposed on the heat sink 200 for detecting the temperature T1 of the heat sink 200 in real time.
The second temperature sensor and the humidity sensor are arranged in the electric appliance box 100, the second temperature sensor is used for detecting the temperature T2 in the electric appliance box 100 in real time, the humidity sensor is used for detecting the humidity RH1 in the electric appliance box 100 in real time, and the dew point temperature T3 of the electric appliance box 100 is obtained through calculation of the system according to the temperature T2 and the humidity RH 1.
In some embodiments of the present application, the heat sink 200 is disposed in the active wind field of the fan 4. When the outdoor unit operates, the fan 4 generates a pressure difference before and after the outdoor unit in the working process, the air flow is forced to pass through the radiator 200, and the heat is taken away by the air flow through the radiator 200, so that the heat dissipation effect is improved.
In some embodiments of the present application, referring to fig. 2, a heating pipe branch is disposed in a refrigeration system where an outdoor unit of an air conditioner is located, a heating pipe 230 and a check valve 8 are disposed on the heating pipe branch, and a high-temperature refrigerant flows through the heating pipe 230 after the check valve 8 is opened.
Specifically, normally, the check valve 8 is in a closed state.
Under the low-temperature heating working condition, if the temperature T1 of the heat radiator 200 is detected to be lower than the dew point temperature T3 of the electrical box 100, the check valve 8 is opened, the high-temperature and high-pressure refrigerant flowing out of the compressor 1 flows through the heating pipe branch, when the high-temperature refrigerant flows through the heating pipe 230, heat exchange is generated between the high-temperature refrigerant and the heating pipe 230, the heating pipe 230 transfers the heat of the high-temperature refrigerant to the heat dissipation substrate 210, and the heat dissipation substrate 210 transfers the heat to the power module, so that the temperature of the power module is increased to be higher than the temperature T2 of the electrical box 100, and condensation is avoided.
The heating pipe 230 is connected to the branch of the refrigeration system, and the structure is simplified.
An electromagnetic valve, such as an electronic expansion valve 7, is further disposed on the heating pipe branch, and the flow rate of the refrigerant in the heating pipe 230 is adjusted by adjusting the opening degree of the electronic expansion valve 7, so as to adjust the heating temperature.
Fig. 2 is a schematic diagram of the refrigeration system in the outdoor unit of the air conditioner, and those skilled in the art can understand the connection relationship and function of the relevant components according to the schematic diagram, and the detailed description of the application is omitted.
In some embodiments of the present application, referring to fig. 3 and 4, the heating pipe 230 has a portion exposed from the upper surface of the heat dissipating substrate 210, so that the heating pipe 230 is mounted conveniently, and on the other hand, heat dissipated by the heating pipe 230 can be directly transferred to the power module, thereby improving the temperature rising efficiency of the power module.
The upper surface of the heat dissipation substrate 210 is provided with a clamping groove 211, an opening of the clamping groove 211 is in a necking shape, and the heating pipe 230 is clamped in the clamping groove 211, so that the fixed installation of the heating pipe 230 can be realized.
The upper surface of the heating pipe 230 is planar and is in the same plane as the upper surface of the heat dissipation substrate 210, so that the planar contact between the heat dissipation substrate 210 and the power module is ensured, and the heat conduction effect is ensured.
The heating pipe 230 is arranged on the heat dissipation substrate 210 in a bent shape, so that the acting areas of the heating pipe 230, the heat dissipation substrate 210 and the power module are increased, and the heating efficiency is improved.
The inlet end 231 and the outlet end 232 of the heating pipe 230 extend from the same side of the heat-dissipating substrate 210, facilitating connection with external pipes.
The heat dissipating substrate 210 is formed by processing an aluminum plate or a copper plate, and improves a heat conductive effect by using a strong heat conductivity of aluminum or copper.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in 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 (10)
1. An outdoor unit of an air conditioner, comprising:
the electric appliance box is internally provided with a power module;
it is characterized by also comprising:
the radiator comprises a radiating base plate, a plurality of fins are arranged on the radiating base plate, the upper surface of the radiating base plate is in contact with the power module, a heating pipe is arranged on the radiating base plate, and the heating pipe is used for heating the radiator when the temperature of the radiator is lower than the dew point temperature of the electric appliance box.
2. The outdoor unit of claim 1, wherein,
a heating pipe branch is arranged in a refrigerating system where the outdoor unit of the air conditioner is located, the heating pipe and a one-way valve are arranged on the heating pipe branch, and a high-temperature refrigerant flows in the heating pipe after the one-way valve is opened.
3. The outdoor unit of claim 2, wherein,
and the heating pipe branch is also provided with an electromagnetic valve.
4. The outdoor unit of claim 1, wherein,
the radiator is provided with a first temperature sensor, and the electrical appliance box is internally provided with a second temperature sensor and a humidity sensor.
5. The outdoor unit of claim 1, wherein,
the heating pipe has a portion exposed from an upper surface of the heat-dissipating substrate.
6. The outdoor unit of claim 5, wherein,
the upper surface of the heat dissipation substrate is provided with a clamping groove, and the heating pipe is clamped in the clamping groove.
7. The outdoor unit of claim 5, wherein,
the upper surface of the heating pipe is planar and is in the same plane with the upper surface of the radiating substrate.
8. The outdoor unit of claim 5, wherein,
the heating pipe is arranged on the heat dissipation substrate in a bent shape, and the inlet end and the outlet end of the heating pipe extend out of the same side of the heat dissipation substrate.
9. The outdoor unit of an air conditioner according to any one of claims 1 to 8,
the heat dissipation substrate is formed by processing an aluminum plate or a copper plate.
10. The outdoor unit of an air conditioner according to any one of claims 1 to 8,
the fan is further included, and the radiator is arranged in an acting wind field of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558835.0U CN215446674U (en) | 2021-07-09 | 2021-07-09 | Outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558835.0U CN215446674U (en) | 2021-07-09 | 2021-07-09 | Outdoor unit of air conditioner |
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| Publication Number | Publication Date |
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| CN215446674U true CN215446674U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121558835.0U Active CN215446674U (en) | 2021-07-09 | 2021-07-09 | Outdoor unit of air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7558438B1 (en) | 2024-02-02 | 2024-09-30 | 日立ジョンソンコントロールズ空調株式会社 | Control device and heat exchange system |
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2021
- 2021-07-09 CN CN202121558835.0U patent/CN215446674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7558438B1 (en) | 2024-02-02 | 2024-09-30 | 日立ジョンソンコントロールズ空調株式会社 | Control device and heat exchange system |
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