WO2020211489A1 - 一种空调室外机和空调器 - Google Patents

一种空调室外机和空调器 Download PDF

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Publication number
WO2020211489A1
WO2020211489A1 PCT/CN2020/071785 CN2020071785W WO2020211489A1 WO 2020211489 A1 WO2020211489 A1 WO 2020211489A1 CN 2020071785 W CN2020071785 W CN 2020071785W WO 2020211489 A1 WO2020211489 A1 WO 2020211489A1
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WIPO (PCT)
Prior art keywords
heat dissipation
dissipation module
flow path
heat
working fluid
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PCT/CN2020/071785
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English (en)
French (fr)
Inventor
徐佳
王飞
王定远
刘德昌
Original Assignee
青岛海尔空调器有限总公司
青岛海尔智能技术研发有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔空调器有限总公司, 青岛海尔智能技术研发有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2020211489A1 publication Critical patent/WO2020211489A1/zh

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers

Definitions

  • the present invention relates to the technical field of heat dissipation, in particular to an outdoor unit of an air conditioner and an air conditioner.
  • the inverter module is an important component in the inverter air conditioner.
  • the heat dissipation problem of the inverter module is closely related to the reliability of the air conditioner.
  • the higher the compressor frequency the more heat generated by the inverter module.
  • the chip design is more compact, the density of components continues to increase, and the volume of components tends to be miniaturized, which makes the heat dissipation of the inverter module more and more difficult.
  • the heat dissipation of the frequency conversion module of the outdoor unit of the air conditioner generally uses an extruded radiator, and the heat dissipation is optimized by changing the area and shape of the fin.
  • the existing radiator still cannot dissipate the heat generated by the inverter module in time, especially under high ambient temperature, the temperature of the inverter module rises sharply, and the heat dissipation capacity of the radiator is limited, which seriously affects the reliability of the air conditioner .
  • the embodiments of the present disclosure provide an outdoor unit of an air conditioner and an air conditioner to solve the problem of difficult heat dissipation of the frequency conversion module.
  • a brief summary is given below. This summary is not a general review, nor is it intended to identify key/important elements or describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.
  • an outdoor unit of an air conditioner is provided.
  • the outdoor unit of the air conditioner includes a radiator, and the radiator includes: a first heat dissipation module, a second heat dissipation module, a first pipeline, and a second pipeline;
  • the first heat dissipation module is provided with a first working medium flow path
  • the second heat dissipation module is provided with a second working medium flow path
  • the first working medium flow path and the second working medium flow path adopt the first tube
  • the first working medium flow path, the second working medium flow path, the first pipeline and the second pipeline form a working medium circuit
  • the working medium circuit is filled with a phase change working medium.
  • One or more of the first heat dissipation module and the second heat dissipation module are arranged in a fan compartment of the outdoor unit of the air conditioner.
  • the radiator of the outdoor unit of the air conditioner provided by the embodiment of the present disclosure can dissipate the heat generated by the frequency conversion module in time, which ensures the smooth operation of the frequency conversion module of the air conditioner, thereby improving the reliability of the operation of the air conditioner.
  • an air conditioner According to a second aspect of an embodiment of the present disclosure, there is provided an air conditioner.
  • the air conditioner includes the aforementioned air conditioner outdoor unit.
  • the radiator of the outdoor unit of the air conditioner provided by the embodiment of the present disclosure includes a first heat dissipation module and a second heat dissipation module.
  • the two heat dissipation modules can simultaneously dissipate heat generated by an object to be dissipated, thereby improving the heat dissipation effect of the heat sink.
  • Using the radiator provided by the embodiments of the present disclosure to dissipate heat from the frequency conversion module of the air conditioner can effectively dissipate the heat generated by the frequency conversion module in time and ensure the smooth operation of the frequency conversion module, thereby improving the reliability of the operation of the air conditioner.
  • One or more of the first heat dissipation module and the second heat dissipation module of the radiator of the outdoor unit of the air conditioner are arranged in the fan compartment of the outdoor unit of the air conditioner, thereby improving the heat dissipation effect of the radiator.
  • Fig. 1 is a schematic structural diagram showing an outdoor unit of an air conditioner according to an exemplary embodiment
  • Fig. 2 is an enlarged schematic diagram showing a partial structure of an outdoor unit of an air conditioner according to an exemplary embodiment
  • Fig. 3 is a schematic structural diagram of a heat sink according to an exemplary embodiment
  • Fig. 4 is a schematic structural diagram showing a first heat dissipation module according to an exemplary embodiment
  • Fig. 5 is a schematic structural diagram showing a second heat dissipation module according to an exemplary embodiment
  • Fig. 6 is a schematic structural diagram showing a second heat dissipation module according to an exemplary embodiment
  • Fig. 7 is a structural schematic diagram showing a sealing member and a fixing member of a first heat dissipation module according to an exemplary embodiment
  • Fig. 8 is an exploded structural schematic diagram showing a sealing member and a fixing member of a first heat dissipation module according to an exemplary embodiment.
  • Fig. 9 is a schematic diagram showing the structure of a seal of a first heat dissipation module according to an exemplary embodiment.
  • 1 first heat dissipation module 1 first heat dissipation module, 2 second heat dissipation module, 3 first pipeline, 4, second pipeline, 5 fan, 6 frequency conversion module, 7 fan bracket, 11 first substrate, 12 first heat dissipation member, 13
  • One layer of substrate 22 second layer of substrate, 23 second heat dissipation member, 24 clip, 25 second working fluid flow path.
  • the embodiment of the present disclosure provides an outdoor unit of an air conditioner.
  • the outdoor unit of the air conditioner provided by the embodiment of the present disclosure includes a radiator.
  • the radiator includes: a first heat dissipation module, a second heat dissipation module, a first pipeline, and a second pipeline; wherein the first heat dissipation module is provided with a first work
  • the second heat dissipation module is provided with a second working fluid flow path.
  • the first working fluid flow path and the second working fluid flow path are connected by the first pipeline and the second pipeline.
  • the second working medium flow path, the first pipeline and the second pipeline constitute a working medium circuit, the working medium circuit is filled with a phase change working medium, and one or more of the first heat dissipation module and the second heat dissipation module are arranged outside the air conditioner The fan compartment of the machine.
  • the radiator of the outdoor unit of the air conditioner includes a first heat dissipation module 1, a second heat dissipation module 2, a first pipeline 3, and a second pipeline 4, wherein the first heat dissipation module 1
  • One or more of the second heat dissipation module 2 and the second heat dissipation module 2 are arranged in the fan compartment of the outdoor unit of the air conditioner.
  • the first heat dissipation module 1 is disposed in the fan nacelle, or the second heat dissipation module 2 is disposed in the fan nacelle, or both the first heat dissipation module 1 and the second heat dissipation module 2 are disposed in the fan nacelle.
  • the casing of the outdoor unit of the air conditioner can be divided into a fan compartment and a compressor compartment by using a sound insulation board, wherein the fan compartment is a compartment with a fan and the compressor compartment is a compartment with a compressor.
  • One or two heat dissipation modules of the radiator provided in the embodiments of the present disclosure are arranged in the fan cabin, and the space of the fan cabin is relatively large, which is beneficial to increase the heat dissipation area of the first heat dissipation module 1 or the second heat dissipation module 2 to improve the heat dissipation heat radiation.
  • a fan 5 and a fan bracket 7 are arranged in the fan cabin, and the second heat dissipation module 2 is arranged in the space between the fan 5 and the fan bracket 7.
  • the air flow between the upper part of the fan 5 and the fan bracket 7 is smoother, which improves the heat dissipation capacity of the second heat dissipation module 2.
  • the second heat dissipation module 2 is fixedly connected to the fan bracket 7.
  • a fixed connection piece may be provided on the surface of the second heat dissipation module 2 to weld the fixed connection piece and the fan bracket 7 to improve the connection stability of the second heat dissipation module 2.
  • the outdoor unit of the air conditioner further includes a frequency conversion module 6, and the first heat dissipation module 1 is in thermal contact with the frequency conversion module 6.
  • the first heat dissipation module 1 is in contact with the lower surface of the high-power components of the frequency conversion module 6 to obtain heat from the high-power components for heat dissipation.
  • the first heat dissipation module 1 of the radiator and the electric control box can be fixed from the bottom of the electric control box.
  • the lower end of the electric control box is provided with a hollow part.
  • a fixing piece 15 and a second fixing piece 16 are placed in the corresponding installation positions inside the hollow part of the electric control box, and then the first fixing piece 15 and the second fixing piece 16, the electric control box, and the first The base body of the heat dissipation module 1 is fixed, and the assembly is stable and convenient.
  • part or all of the frequency conversion module 6 is arranged in the fan cabin.
  • the soundproof board divides the electric control box into two parts.
  • the first part of the electric control box is arranged in the fan cabin, and the second part is arranged in the compressor cabin.
  • the frequency conversion module 6 is arranged in the first part of the electric control box and is in thermally conductive contact with the first heat dissipation module 1.
  • the first heat dissipation module 1 is arranged in the fan cabin, which is beneficial for the fan to dissipate heat from the first heat dissipation module.
  • the radiator of the outdoor unit of the air conditioner includes: a first heat dissipation module 1, a second heat dissipation module 2, a first pipeline 3 and a second pipeline 4, wherein the first heat dissipation module 1 is provided with a first working medium flow path, the second heat dissipation module 2 is provided with a second working medium flow path 25, the first working medium flow path and the second working medium flow path 25 adopt the first pipe 3 and the second pipe 4 is connected, the first working medium flow path, the second working medium flow path 25, the first pipe 3 and the second pipe 4 constitute a working medium circuit, and the working medium circuit is filled with a phase change working medium.
  • the heat sink provided by the embodiment of the present disclosure includes two heat dissipation modules at the same time, that is, the first heat dissipation module 1 and the second heat dissipation module 2, and both of the two heat dissipation modules are provided with working fluid channels.
  • the working medium in the working medium flow path can transfer the heat of the first heat dissipation module 1 to the second heat dissipation module 2, so that the first heat dissipation module 1 and the second heat dissipation module 2 simultaneously perform heat dissipation functions, which improves the heat dissipation capacity of the heat sink.
  • the heat dissipation capability of the radiator provided by the embodiments of the present disclosure is expressed as follows: when the ambient temperature is 52°C, when the existing radiator is used for heat dissipation, the existing radiator may be a non-integrated radiator, a shell of a high-power component The temperature is more than ninety degrees Celsius, even more than 100 degrees Celsius.
  • the heat sink provided in the embodiment of the present disclosure is used to cool the frequency conversion module 6. When the ambient temperature is 52 degrees Celsius, the high-power component case temperature is 72-82 degrees Celsius. It can be seen that the heat sink provided by the embodiments of the present disclosure can lower the high-power components by 20-25°C more than the existing heat sink.
  • the frequency conversion module 6 of the outdoor unit of the air conditioner is equipped with multiple high-power components.
  • the chip design of the electronic control module outside the air conditioner is more compact and the components
  • the density of components continues to increase, and the volume of components tends to be miniaturized. Therefore, the heating power consumption of high-power components is increasing, and the heat flux density is rising sharply.
  • the heat dissipation performance of the frequency conversion module 6 is very important.
  • the existing improvement method for the radiator of the frequency conversion module 6 of the outdoor unit of the air conditioner is generally to optimize the body of the radiator, for example, to increase the heat dissipation area of the radiator by increasing the height of the fins and the number of fins.
  • the space of the outdoor unit of the radiator is limited, the optimization space of the radiator body is small, and the improvement of heat dissipation capacity is limited.
  • the embodiment of the present disclosure provides a heat sink with high heat dissipation capacity with two heat dissipation modules, which can dissipate the heat generated by the frequency conversion module 6 in time, and improve the reliability and stability of the operation of the frequency conversion module 6.
  • the method of using the radiator provided by the embodiment of the present disclosure to dissipate the frequency conversion module 6 may be as follows: the first heat dissipation module 1 receives heat from the frequency conversion module 6, and part of the heat is dissipated through the air cooling effect of the fan 5, and the undissipated heat is The working fluid in the first working fluid flow path is absorbed, and the working fluid is quickly vaporized after being heated and takes the heat away, and enters the second working fluid flow path 25 of the second heat dissipation module 2 through the first pipeline 3, and the second heat dissipation module 2 Air cooling and natural convection can be performed at the same time.
  • the gas working medium in the second working medium flow path 25 dissipates heat through the second heat dissipating module 2.
  • the first heat dissipation module 1 and the second heat dissipation module 2 can simultaneously heat the frequency conversion module 6, which improves the heat dissipation capacity of the heat sink and can The heat generated by the frequency conversion module 6 is effectively dissipated, which improves the reliability of the operation of the air conditioner.
  • the first working fluid flow path, the second working fluid flow path 25, the first pipe 3 and the second pipe 4 constitute a working fluid circuit, and the working fluid circuit is filled with a phase change quality.
  • the radiator provided by the embodiment of the present disclosure may be prepared through preparation processes such as welding, vacuuming, and infusing working fluid.
  • This embodiment does not specifically limit the type of working fluid, for example, it may be a fluid that can undergo phase change, such as a refrigerant.
  • This embodiment does not specifically limit the filling amount of the working fluid in the working fluid circuit.
  • the working fluid is sealed in the working fluid circuit.
  • the sealing method of the working fluid in the first heat dissipation module 1 can adopt the sealing member as shown in Fig. 7, Fig. 8 and Fig. 9, including: a first seal 17 and a second seal 18.
  • the first Both the sealing member 17 and the second sealing member 18 are provided with a channel 171 for connecting multiple channels in the first working fluid channel, and the gaseous working fluid in the multiple channels in the first working fluid channel can pass through
  • the through holes 172 converge and enter the first pipeline 3, and similarly, the liquid working fluid in the second pipeline 4 can be divided through the through holes in the second sealing member to enter the first working fluid flow path.
  • the connection between the first sealing member 17 and the second sealing member 18 and the base of the first heat dissipation module 1 may be brazing.
  • the material of the first pipeline 3 is metal, and similarly, the material of the second pipeline 4 is metal.
  • the first heat dissipation module 1 of the heat sink provided by the embodiment of the present disclosure includes a first base 11 and a plurality of first heat dissipation members 12 arranged on the first base 11, and the first working medium flow path is arranged at Inside the first base 11.
  • the first heat dissipation module 1 provided by the embodiment of the present disclosure may also be referred to as an evaporation end.
  • the first base 11 of the first heat dissipation module 1 and the plurality of first heat dissipation members 12 arranged on the first base 11 can be prepared by a direct extrusion method.
  • the embodiment of the present disclosure does not specifically limit the number and structural size of the first heat dissipation member 12, for example, it can be set according to the size of the space where the first heat dissipation module 1 is located.
  • the pitches of the plurality of first heat dissipation members 12 provided on the first base 11 may not be equal.
  • the first heat dissipation member 12 may be a fin, and the height of the fin may be 30-50 mm, that is, the distance from the free end of the fin to the surface of the first base 11 is 30-50 mm, and the thickness is 1.5 mm.
  • the first heat dissipation module 1 provided by the embodiment of the present disclosure can be coated with thermally conductive silicone grease or attached to the frequency conversion module 6 to reduce the contact thermal resistance between the two, and effectively receive the heat from the frequency conversion module. 6 heat, and conduct heat dissipation.
  • one or more threaded holes 14 may be provided on the first base 11 of the first heat dissipation module 1, and the first heat dissipation module 1 and the frequency conversion module 1 are connected by a screw thread. Module 6 is fixed.
  • the area where the threaded hole 14 is provided on the first base 11 does not overlap the area where the first heat dissipation member 12 is provided.
  • the first heat dissipation module 1 is also provided with fixing members. As shown in FIGS. 7 and 8, a second base 11 is provided at both ends A fixing member 15 and a second fixing member 16, the ends of the first sealing member 17 and the second sealing member 18 may be provided with a trapezoidal structure 173, so that the cross-sectional structure of the first sealing member 17 and the second sealing member 18 is the same as the first The cross-sectional structure size of a heat dissipation module 1 is the same.
  • the first fixing member 15 and the second fixing member 16 can connect the first base 11 and the first sealing member 17 Together with the second sealing member 18, it is fixed with the electric control box, and the sealing performance of the contact part between the first heat dissipation module 1 and the electric control box is ensured.
  • the material of the first fixing member 15 and the second fixing member 16 may be metal.
  • the first fixing member 15 and the second fixing member 16 The piece 16 may be a sheet metal structure.
  • the first fixing member 15 and the second fixing member 16 are provided with through holes, which can be used to connect the first base 11 and the electric control box.
  • the first working fluid flow path in the first heat dissipation module 1 is arranged in the first base 11.
  • a first working fluid flow path composed of a plurality of flow paths is provided in the first base body 11.
  • the first base 11 and the first working fluid flow path are integrally formed.
  • the area where the threaded hole 14 is provided on the first base 11 does not overlap with the area where the first working fluid flow path is provided.
  • the first working fluid flow path includes at least a first working fluid flow path 13 and a second working fluid flow path.
  • the first working fluid flow path includes the first working fluid flow path 13 framed by the dashed line and the second working fluid flow path located under the first working fluid flow path 13 that is not framed by the dashed line.
  • the first layer of working fluid flow path 13 is located on the first plane
  • the second layer of working fluid flow path is located on the second plane
  • the first plane is parallel to the second plane.
  • the second heat dissipation module 2 includes a second base, and the second working fluid flow path 25 is provided in the second base.
  • the second base and the second working fluid flow path 25 One piece.
  • the second heat dissipation module 2 includes a second base body and a plurality of second heat exchange members 23 arranged on the second base body, and the second working fluid flow path 25 is arranged in the second base body. In the matrix.
  • the second heat dissipation module 2 provided by the embodiment of the present disclosure may also be referred to as a condenser end.
  • the second substrate of the second heat dissipation module 2 may be a temperature equalization plate, for example, an inflation type temperature equalization plate, which is formed by pressing two layers of aluminum plates, and is provided with a second working fluid flow path communicating with each other. 25.
  • the second heat dissipation module 2 provided with a second working medium flow path has the functions of working medium flow path and heat sink at the same time, which can perform natural convection and air cooling at the same time, and has high heat transfer capacity, high thermal conductivity, light weight, etc. advantage.
  • the second base of the second heat dissipation module 2 includes at least a first layer substrate 21 and a second layer substrate 22 that are connected, and the first layer substrate 21 is provided with a There are three layers of working fluid channels, a fourth layer of working fluid channels is provided in the second layer of substrate 22, and the third layer of working fluid channels is connected to the fourth layer of working fluid channels.
  • the double-layer or multi-layer working fluid flow path design in the second base improves the heat dissipation capacity of the second heat dissipation module 2.
  • the preparation method of the two-layer or multi-layer second substrate may be to use only one temperature equalizing plate, which is folded from the middle position into two or more symmetrical layers.
  • one or more fixing bolts are arranged between the first layer substrate 21 and the second layer substrate 22, which not only improves the overall stability of the second substrate, but also ensures that the first layer substrate 21 and the second layer substrate The stability of the distance between 22.
  • the second base body of the second heat dissipation module 2 is provided with a connecting part for fixing the second heat dissipation module 2.
  • the connecting part here may be a clip 24, and the installation position of the second heat dissipation module 2 may be It is on the fan bracket 7 of the outdoor unit of the air conditioner.
  • the second base body of the second heat dissipation module 2 is provided with a plurality of second heat dissipation members 23.
  • the shape of the second heat dissipation member 23 is not specifically limited in this embodiment. For example, it may be a rectangular or triangular winglet. .
  • the multiple second heat dissipation members 23 provided on the temperature equalization plate can destroy the development of the boundary layer on the surface of the temperature equalization plate, enhance the degree of gas disturbance, and improve the heat dissipation capacity of the second heat dissipation module 2.
  • the second heat dissipation member 23 may be disposed on the outer surface of the uniform temperature plate, or may be disposed on the inner surface of the uniform temperature plate.
  • the path of the second working fluid flow path 25 in the second heat dissipation module 2 may be as shown in FIG. 6, and the second working fluid flow path 25 communicating with each other is formed by a plurality of interlaced pipelines.
  • the embodiment of the present disclosure does not make too many restrictions on the specific path form of the second working fluid flow path 25.
  • the first layer of the working fluid flow path 13 in the first base 11 of the first heat dissipation module 1 is located at a first horizontal plane
  • the second layer of working fluid flow path is located on the second horizontal plane
  • the third layer of working fluid flow path in the second base of the second heat dissipation module 2 is located on the third horizontal plane
  • the fourth layer working fluid flow path is located on the fourth horizontal plane
  • the path 3 connects the first layer of working fluid path 13 and the third layer of working fluid path
  • the second pipeline 4 connects the second layer of working fluid path and the fourth layer of working fluid path.
  • the bottom-up arrangement of the first horizontal plane, the second horizontal plane, the third horizontal plane, and the fourth horizontal plane are: the second horizontal plane, the first horizontal plane, the fourth horizontal plane, and the third horizontal plane, that is, the first horizontal plane
  • the arrangement of the mass flow path 13, the second layer of the working fluid flow path, the third layer of the working fluid flow path, and the fourth layer of the working fluid flow path in the vertical direction from bottom to top are: The first layer of working fluid flow path 13, the fourth layer of working fluid flow path, and the third layer of working fluid flow path.
  • the height difference here can be formed by the first pipe 3 and the second pipe 4.
  • the first pipeline 3 includes a first branch, a second branch, and a third branch that are connected in sequence, and the second branch causes the first branch and the third branch to form a height difference, or the second
  • the pipeline 4 includes a fourth branch, a fifth branch and a sixth branch connected in sequence, and the fifth branch makes the fourth branch and the sixth branch form a height difference.
  • the flow of the working fluid in the working fluid circuit can be described as: the first heat dissipation module 1 receives heat from the object to be dissipated, the first layer of the working fluid path 13 and the second layer
  • the working fluid in the working fluid flow path is heated to a gaseous state.
  • the gaseous working fluid enters the third working fluid flow path through the first pipeline 3, and the gas working fluid in the third working fluid flow path
  • the temperature decreases and becomes liquid. Under the action of gravity, it flows into the fourth layer of working fluid flow path, and further flows into the second layer of working fluid flow path through the second pipe 4 to perform the next heat absorption cycle.
  • This application also provides an air conditioner including the aforementioned outdoor unit of the air conditioner.

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Abstract

一种空调室外机和空调器，其中，空调室外机包括散热器，散热器包括第一散热模块（1），第二散热模块（2），第一管路（3）和第二管路（4），第一散热模块（1）设置有第一工质流路（13），第二散热模块（2）设置有第二工质流路（25），第一工质流路（13）和第二工质流路（25）采用所述第一管路（3）和第二管路（4）连通，第一工质流路（13）、第二工质流路（25）、第一管路（3）和第二管路（4）构成工质回路，工质回路内填充有相变工质，第一散热模块（1）和第二散热模块（2）中的一个或一个以上设置于空调室外机的风机舱。该空调室外机的两个散热模块可同时对热量进行散发，提高了散热器的散热效果。提高了空调器运行的可靠性。

Description

一种空调室外机和空调器
本申请基于申请号为201910319882.0、申请日为2019年04月19日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及散热技术领域，特别涉及一种空调室外机和空调器。
背景技术
变频模块是变频空调器中的重要元器件，变频模块的散热问题与空调器的可靠性密切相关。压缩机频率越高，变频模块发热越多，其次，芯片设计上更加紧凑，元器件的密度不断增加，且元器件的体积也趋于微小化，导致变频模块的散热越来越困难。
目前，空调器室外机变频模块的散热一般采用挤压型材散热器，通过改变肋片的面积和形状进行散热优化。但是，现有的散热器仍无法将变频模块产生的热量及时散发出去，尤其在高环温下，变频模块的温度急剧升高，而散热器的散热能力有限，严重影响了空调器的可靠性。
发明内容
本公开实施例提供了一种空调室外机和空调器，以解决变频模块散热困难的问题。为了对披露的实施例的一些方面有一个基本的理解，下面给出了简单的概括。该概括部分不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围。其唯一目的是用简单的形式呈现一些概念，以此作为后面的详细说明的序言。
根据本公开实施例的第一方面，提供了一种空调室外机。
在一些可选实施例中，所述一种空调室外机，包括散热器，所述散热器包括：第一散热模块，第二散热模块，第一管路，和第二管路；其中，所述第一散热模块设置有第一工质流路，所述第二散热模块设置有第二工质流路，所述第一工质流路和第二工质流路采用所述第一管路和第二管路连通，所述第一工质流路、第二工质流路、第一管路和第二管路构成工质回路，所述工质回路内填充有相变工质，所述第一散热模块和第二散热模块中的一个或一个以上设置于所述空调室外机的风机舱。本公开实施例提供的空调室外机的散热器可以将变频模块产生的热量及时的散发出去，保证了空调变频模块的顺利运行，进而提高了空调器运行的可靠性。
根据本公开实施例的第二方面，提供了一种空调器。
在一些可选实施例中，所述空调器包括如前述的空调室外机。
本公开实施例提供的技术方案可以包括以下有益效果：
本公开实施例提供的空调室外机的散热器包括第一散热模块和第二散热模块，两个散热模块可同时对待散热物体产生的热量进行散发，提高了散热器的散热效果。采用本公开实施例提供的散热器对空调的变频模块进行散热，可及时有效的将变频模块产生的热量散发出去，保证了变频模块的顺利运行，进而提高了空调器运行的可靠性。空调室外机的散热器的第一散热模块和第二散热模块中的一个或一个以上设置于空调室外机的风机舱内，提高了散热器的散热效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本发明。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种空调室外机的结构示意图；
图2是根据一示例性实施例示出的一种空调室外机的部分结构放大示意图；
图3是根据一示例性实施例示出的一种散热器的结构示意图；
图4是根据一示例性实施例示出的一种第一散热模块的结构示意图；
图5是根据一示例性实施例示出的一种第二散热模块的结构示意图；
图6是根据一示例性实施例示出的一种第二散热模块的结构示意图；
图7是根据一示例性实施例示出的一种第一散热模块的密封构件和固定构件的结构示意图；
图8是根据一示例性实施例示出的一种第一散热模块的密封构件和固定构件的分解结构示意图；以及，
图9是根据一示例性实施例示出的一种第一散热模块的密封件结构示意图。
其中，1第一散热模块，2第二散热模块，3第一管路，4，第二管路，5风机，6变频模块，7风机支架，11第一基体，12第一散热构件，13第一层工质流路，14螺纹孔，15第一固定件，16第二固定件，17第一密封件，18第二密封件，171槽道，172通孔，173梯形结构，21第一层基板，22第二层基板，23第二散热构件，24卡接件，25第二工质流路。
具体实施方式
以下描述和附图充分地示出本文的具体实施方案，以使本领域的技术人员能够实践它们。一些实施方案的部分和特征可以被包括在或替换其他实施方案的部分和特征。本文的实施方案的范围包括权利要求书的整个范围，以及权利要求书的所有可获得的等同物。
本公开实施例提供了一种空调室外机。
本公开实施例提供的空调室外机，包括散热器，散热器包括：第一散热模块，第二散 热模块，第一管路，和第二管路；其中，第一散热模块设置有第一工质流路，第二散热模块设置有第二工质流路，第一工质流路和第二工质流路采用第一管路和第二管路连通，第一工质流路、第二工质流路、第一管路和第二管路构成工质回路，工质回路内填充有相变工质，第一散热模块和第二散热模块中的一个或一个以上设置于空调室外机的风机舱。
如图1所示，本公开实施例提供的空调室外机的散热器包括第一散热模块1、第二散热模块2、第一管路3和第二管路4，其中，第一散热模块1和第二散热模块2中的一个或一个以上设置于空调室外机的风机舱。可选的，第一散热模块1设置于风机舱，或者，第二散热模块2设置于风机舱，或者，第一散热模块1和第二散热模块2均设置于风机舱。
可选的，空调室外机的壳体可采用隔音板将空调室外机分为风机舱和压缩机舱，其中风机舱为设置有风机的舱体，压缩机舱为设置有压缩机的舱体。本公开实施例提供的散热器的一个或两个散热模块设置于风机舱，风机舱的空间较大，有利于通过增加第一散热模块1或第二散热模块2的散热面积来提高散热器的散热效果。
可选的，如图1和图2所示，风机舱内设置有风机5和风机支架7，第二散热模块2设置于风机5和风机支架7之间的空间。风机5上部至风机支架7之间的气流流动更加顺畅，提高了第二散热模块2的散热能力。
可选的，第二散热模块2与风机支架7固定连接。可选的，可在第二散热模块2的表面设置固定连接件，将固定连接件与风机支架7进行焊接，提高第二散热模块2的连接稳定性。
可选的，空调室外机还包括变频模块6，第一散热模块1与变频模块6导热接触。第一散热模块1与变频模块6的大功率元器件的下表面接触，获取大功率元器件的热量，进行散热。可选的，为避免电控盒模具的改动，散热器的第一散热模块1与电控盒的固定方式可采用从电控盒下部安装，例如，电控盒的下端设置有镂空部位，第一固定件15和第二固定件16放置在电控盒的镂空部位的内部对应安装位置，然后采用螺旋连接的方式将第一固定件15和第二固定件16、电控盒、和第一散热模块1的基体进行固定，装配稳定、方便。
可选的，变频模块6的部分或全部设置于风机舱。如图1所示，隔音板将电控盒分为两部分，电控盒的第一部分设置于风机舱，第二部分设置于压缩机舱。变频模块6设置于电控盒的第一部分，与第一散热模块1导热接触。可选的，第一散热模块1设置于风机舱，有利于风机对第一散热模块的热量进行散失。
如图3所示，本公开实施例提供的空调室外机的散热器包括：第一散热模块1，第二散热模块2，第一管路3和第二管路4，其中，第一散热模块1设置有第一工质流路，第二散热模块2设置有第二工质流路25，第一工质流路和第二工质流路25采用第一管路3和第二管路4连通，第一工质流路、第二工质流路25、第一管路3和第二管路4构成工质回路，工质回路内填充有相变工质。
本公开实施例提供的散热器同时包括两个散热模块，即第一散热模块1和第二散热模 块2，且，两个散热模块中均设置有工质流路。工质流路内的工质可以将第一散热模块1的热量传递至第二散热模块2，使得第一散热模块1与第二散热模块2同时发挥散热功能，提高了散热器的散热能力。本公开实施例提供的散热器的散热能力表现为：环境温度为52℃时，采用现有的散热器进行散热时，现有的散热器可以是非一体成型的散热器，大功率元器件的壳温为九十多摄氏度，甚至超过100℃，采用本公开实施例提供的散热器对变频模块6进行降温，环境温度为52℃时，大功率元器件壳温为72-82℃。可见，本公开实施例提供的散热器比现有的散热器给大功率元器件多降20-25℃。
空调室外机的变频模块6设置有多个大功率元器件，随着空调器外机小型化，以及空调器功能多样化的需要，空调器外机电控模块的芯片设计上更加紧凑，元器件的密度不断增加，且元器件的体积也趋于微小化。因此，大功率元器件发热功耗越来越大，热流密度急剧升高。为保证空调器外机电控的安全性和可靠性，变频模块6的散热性能至关重要。现有的对空调器室外机的变频模块6的散热器的改进方法一般是优化散热器的本体，例如，通过增加肋片高度、肋片数量等方法提高散热器的散热面积，但是，由于空调器室外机的空间有限，散热器本体的优化空间很小，散热能力提升有限。本公开实施例提供了一种具有两个散热模块的高散热能力的散热器，可及时将变频模块6产生的热量进行散失，提高了变频模块6运行的可靠性和稳定性。
采用本公开实施例提供的散热器对变频模块6进行散热的方法可以是：第一散热模块1接收来自于变频模块6的热量，通过风机5的风冷作用散失部分热量，未散失的热量被第一工质流路中的工质吸收，工质受热后快速汽化并将热量带走，通过第一管路3进入第二散热模块2的第二工质流路25，第二散热模块2可以同时进行风冷散热和自然对流，第二工质流路25内的气体工质通过第二散热模块2将热量散热，降低温度后，变为液体，液态的工质通过第二管路4流回第一散热模块1的第一工质流路内，进行下一个吸热变为气态的循环。可见，采用本公开实施例提供的散热器对变频模块6进行散热时，可通过第一散热模块1与第二散热模块2同时对变频模块6进行散热，提高了散热器的散热能力，可将变频模块6产生的热量有效散失，提高了空调器运行的可靠性。
本公开实施例提供的散热器中，第一工质流路、第二工质流路25、第一管路3和第二管路4构成工质回路，工质回路内填充有相变工质。
可选的，本公开实施例提供的散热器可经过焊接、抽真空、灌注工质等制备过程制备得到。本实施例对工质的种类不作具体限制，例如可以是可进行相变的流体，如冷媒等。本实施例对工质回路中工质的填充量不作具体限制。
可选的，工质密封在工质回路中。其中，工质在第一散热模块1内的密封方式可以采用如图7、图8和图9所示的密封构件，包括：第一密封件17和第二密封件18，具体的，第一密封件17和第二密封件18均设置有槽道171，用于将第一工质流路内的多个流道连通，第一工质流路内多个流道中的气态工质可通过通孔172进行汇流，进入第一管路3，类似的，第二管路4内的液态工质可通过第二密封件中的通孔进行分流，进入第一工质流 路。第一密封件17和第二密封件18与第一散热模块1的基体的连接方式可以为钎焊。
可选的，第一管路3的材质为金属，类似的，第二管路4的材质为金属。
如图4所示，本公开实施例提供的散热器的第一散热模块1包括第一基体11和设置于第一基体11上的多个第一散热构件12，第一工质流路设置于第一基体11内。
本公开实施例提供的第一散热模块1，也可称作蒸发端。第一散热模块1的第一基体11和设置于第一基体11上的多个第一散热构件12，可采用直接挤压成型的制备方法制备得到。本公开实施例对第一散热构件12的数量及结构尺寸不作具体限制，例如，可根据第一散热模块1所在的空间的大小进行设置。可选的，设置于第一基体11上的多个第一散热构件12的间距可以不相等。可选的，第一散热构件12可以是肋片，肋片高度可以为30-50mm，即肋片的自由端至第一基体11表面的距离为30-50mm，厚度为1.5mm。
可选的，本公开实施例提供的第一散热模块1可以与变频模块6之间涂覆导热硅脂或贴附导热片，减少两者之间的接触热阻，有效的接收来自于变频模块6的热量，并进行散热。为了提高第一散热模块1与变频模块6接触的稳定性，第一散热模块1的第一基体11上可以设置一个或多个螺纹孔14，采用螺纹连接的方式将第一散热模块1与变频模块6进行固定。可选的，第一基体11上设置有螺纹孔14的区域与设置有第一散热构件12的区域不重叠。为了进一步提高第一散热模块1与变频模块6连接的稳定性，第一散热模块1还设置有固定构件，如图7和图8所示，在第一基体11的两个端部设置有第一固定件15和第二固定件16，第一密封件17和第二密封件18的端部可设置有梯形结构173，这样，第一密封件17和第二密封件18的截面结构与第一散热模块1的截面结构尺寸一致，通过增加第一固定件15和第二固定件16的长度，使得第一固定件15和第二固定件16可将第一基体11与第一密封件17和第二密封件18一同与电控盒进行固定，并保证第一散热模块1与电控盒接触部位的密封性。为了使第一固定件15和第二固定件16更好的发固定效果，第一固定件15和第二固定件16的材质可以是金属，可选的，第一固定件15和第二固定件16可以为钣金结构件。第一固定件15和第二固定件16上设置有通孔，可用于连接第一基体11与电控盒。
可选的，第一散热模块1中的第一工质流路设置于第一基体11内。如图4所示，第一基体11内设置有由多条流道组成的第一工质流路。可选的，为了提高第一散热模块1的散热能力，第一基体11与第一工质流路一体成型。可选的，第一基体11上设置有螺纹孔14的区域与设置有第一工质流路的区域不重叠。可选的，为了提高第一散热模块1的第一基体11的均温性和载热能力，对集中热源有更好的控制能力，同时，消除局部过热现象，提高变频模块6工作的稳定性和可靠性，第一工质流路至少包括第一层工质流路13和第二层工质流路。如图4所示，第一工质流路包括虚线部分框起第一层工质流路13和未被虚线框起的位于第一层工质流路13下层的第二层工质流路。其中，第一层工质流路13位于第一平面，第二层工质流路位于第二平面，第一平面与第二平面平行。
可选的，第二散热模块2包括第二基体，第二工质流路25设置于第二基体内，为了 提高第二散热模块2的散热能力，第二基体与第二工质流路25一体成型。
可选的，如图5和图6所示，第二散热模块2包括第二基体和设置于第二基体上的多个第二换热构件23，第二工质流路25设置于第二基体内。
本公开实施例提供的第二散热模块2，也可称作冷凝端。可选的，第二散热模块2的第二基体可以为均温板，例如可以是吹胀式均温板，由两层铝板压合而成，内部设置有互相连通的第二工质流路25。设置有第二工质流路的第二散热模块2，同时具有工质流路和散热片的功能，可同时进行自然对流与风冷散热，具有高传热能力、高热传导率、重量轻等优点。可选的，为了进一步提高第二散热模块2的散热能力，第二散热模块2的第二基体至少包括连通的第一层基板21和第二层基板22，第一层基板21内设置有第三层工质流路，第二层基板22内设置有第四层工质流路，第三层工质流路与第四层工质流路连通。第二基体内双层或多层的工质流路设计，提高了第二散热模块2散热能力。可选的，两层或多层的第二基体的制备方法可以是，仅采用一片均温板，从中间位置折为对称的两层或多层。可选的，第一层基板21与第二层基板22之间设置有一个或多个固定螺栓，既提高了第二基体的整体稳定性，又保证了第一层基板21与第二层基板22之间距离的稳定性。可选的，第二散热模块2的第二基体上设置有连接部件，用于将第二散热模块2固定，此处的连接部件可以是卡接件24，第二散热模块2的安装部位可以是空调室外机的风机支架7上。
可选的，第二散热模块2的第二基体上设置有多个第二散热构件23，本实施例对第二散热构件23的形状不作具体限定，例如，可以是矩形、三角形的小翼等。均温板上设置的多个第二散热构件23，可破坏均温板表面边界层的发展，增强气体扰动程度，提高第二散热模块2的散热能力。可选的，第二散热构件23可设置于均温板的外表面，也可设置于均温板的内表面。
可选的，第二散热模块2内的第二工质流路25的路径可以如图6所示，由多条相互交错的管路形成互相连通的第二工质流路25。本公开实施例对第二工质流路25的具体路径形式不作过多限制。
可选的，为了提高第一散热模块1与第二散热模块2之间工质的顺利流动，第一散热模块1的第一基体11内的第一层工质流路13位于第一水平面，第二层工质流路位于第二水平面，第二散热模块2的第二基体内的第三层工质流路位于第三水平面，第四层工质流路位于第四水平面，第一管路3连接第一层工质流路13与第三层工质流路，第二管路4连接第二层工质流路与第四层工质流路。垂直方向上，第一水平面、第二水平面、第三水平面、第四水平面自下而上的排列依次为：第二水平面、第一水平面、第四水平面、第三水平面，即，第一层工质流路13、第二层工质流路、第三层工质流路、第四层工质流路在垂直方向上自下而上的排列依次为：第二层工质流路、第一层工质流路13、第四层工质流路、第三层工质流路。此处的高度差可由第一管路3和第二管路4形成。可选的，第一管路3包括依次连通的第一支路，第二支路和第三支路，第二支路使第一支路与第三支 路形成高度差，或者，第二管路4包括依次连通的第四支路，第五支路和第六支路，第五支路使第四支路与第六支路形成高度差。
结合工质的气态与液态的相变，工质在工质回路中的流动方式可以描述为：第一散热模块1接收来自待散热物体的热量，第一层工质流路13与第二层工质流路内的工质受热变为气态，根据气体向上流动的原理，气态工质通过第一管路3进入第三层工质流路，第三层工质流路内的气态工质热量散热后温度降低，变为液态，在重力作用下，流入第四层工质流路，并进一步通过第二管路4流入第二层工质流路，进行下一次热量吸收循环。
本申请同时提供了一种包括前述空调室外机的空调器。
本发明并不局限于上面已经描述并在附图中示出的结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (7)

  1. 一种空调室外机，其特征在于，包括散热器，所述散热器包括：
    第一散热模块，
    第二散热模块，
    第一管路，和
    第二管路；
    其中，所述第一散热模块设置有第一工质流路，所述第二散热模块设置有第二工质流路，所述第一工质流路和第二工质流路采用所述第一管路和第二管路连通，
    所述第一工质流路、第二工质流路、第一管路和第二管路构成工质回路，所述工质回路内填充有相变工质，
    所述第一散热模块和第二散热模块中的一个或一个以上设置于所述空调室外机的风机舱内。
  2. 根据权利要求1所述的空调室外机，其特征在于，所述风机舱内设置有风机和风机支架，
    所述第二散热模块设置于所述风机和风机支架之间的空间。
  3. 根据权利要求1所述的空调室外机，其特征在于，
    所述第二散热模块与所述风机支架固定连接。
  4. 根据权利要求1-3中任一项所述的空调室外机，其特征在于，还包括变频模块，
    所述第一散热模块与所述变频模块导热接触。
  5. 根据权利要求4所述的空调室外机，其特征在于，
    所述变频模块设置于所述风机舱内。
  6. 根据权利要求5所述的空调室外机，其特征在于，
    所述第一散热模块设置于所述风机舱内。
  7. 一种空调器，其特征在于，包括权利要求1-6中任一项所述的空调室外机。
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