CN102914197A - Radiator device with convection heat exchange function - Google Patents
Radiator device with convection heat exchange function Download PDFInfo
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- CN102914197A CN102914197A CN2012104128594A CN201210412859A CN102914197A CN 102914197 A CN102914197 A CN 102914197A CN 2012104128594 A CN2012104128594 A CN 2012104128594A CN 201210412859 A CN201210412859 A CN 201210412859A CN 102914197 A CN102914197 A CN 102914197A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000000110 cooling liquid Substances 0.000 claims description 11
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000010257 thawing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101100070541 Podospora anserina (strain S / ATCC MYA-4624 / DSM 980 / FGSC 10383) het-S gene Proteins 0.000 description 1
- 101100070542 Podospora anserina het-s gene Proteins 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
本发明涉及纯电动汽车的空调暖风系统，具体涉及一种具有对流换热功能的散热器装置。它包括具有进液口和出液口的壳体和安装于壳体内的散热器，散热器下部设有多个相互平行布置的用于对流换热的散热器肋片，相邻散热器肋片之间、靠近壳体的散热器肋片与壳体内壁之间均设有冷却液流通通道，散热器肋片内部设有用于布置PTC加热元件的安装槽，散热器肋片侧面为呈波纹状的换热面。本发明的散热器与发热单元和壳体组合而成一个高效换热系统。该散热器装置具有波纹状强化对流换热面，结构简单，增加了散热肋片流道之间湍流的生成率，降低了发热元件和冷却媒质之间的热阻，提高了铝合金散热器的强化对流换热效率。
The invention relates to an air-conditioning and heating system of a pure electric vehicle, in particular to a radiator device with a convective heat exchange function. It includes a shell with a liquid inlet and a liquid outlet and a radiator installed in the shell. The lower part of the radiator is provided with a plurality of radiator fins arranged in parallel for convective heat exchange. Adjacent radiator fins There are coolant circulation channels between the radiator fins close to the shell and the inner wall of the shell. The radiator fins are equipped with installation grooves for arranging PTC heating elements. The sides of the radiator fins are corrugated. heat exchange surface. The radiator of the present invention is combined with the heating unit and the casing to form a high-efficiency heat exchange system. The radiator device has a corrugated enhanced convection heat transfer surface, a simple structure, increases the generation rate of turbulent flow between the cooling fin flow channels, reduces the thermal resistance between the heating element and the cooling medium, and improves the performance of the aluminum alloy radiator. Enhance convective heat transfer efficiency.
Description
技术领域 technical field
本发明涉及纯电动汽车的空调暖风系统，具体涉及一种具有对流换热功能的散热器装置。The invention relates to an air-conditioning and heating system of a pure electric vehicle, in particular to a radiator device with a convective heat exchange function.
背景技术 Background technique
纯电动汽车因没有发动机而不能运用发动机冷却水的余热作为热源，从而不能运用这种热量进行纯电动汽车的除霜除雾试验。为了使得纯电动汽车的除霜除雾可以满足法规的要求，并提高乘员的舒适性，因此必须开发电动汽车的独立的空调暖风系统。Pure electric vehicles cannot use the waste heat of engine cooling water as a heat source because they do not have an engine, so this heat cannot be used for defrosting and defogging tests of pure electric vehicles. In order to make the defrosting and defogging of pure electric vehicles meet the requirements of regulations and improve the comfort of passengers, it is necessary to develop an independent air conditioning and heating system for electric vehicles.
电动汽车乘员舱采暖的热源是来自具有正温度系数特性的PTC(positive temperature coefficient)水加热单元，其产生的热量不能直接传递给冷却液，而是通过铝合金散热器将热量传递给冷却液，高温的冷却液流经空调HVAC系统的暖风芯体之后，将热量再传递给来自风机的低温空气，空气受热之后进入乘员舱，进而完成电动汽车的除霜、除雾或者乘员的取暖需求。PTC水加热单元产生的热量由电能提供，因为散热器换热效率低，产生的热量仅小部分被传递给冷却液，大部分的热量都被浪费，为完成电动汽车的除霜、除雾或者乘员的取暖需求需要消耗更多的电能。The heat source for heating the passenger compartment of electric vehicles comes from the PTC (positive temperature coefficient) water heating unit with positive temperature coefficient characteristics. The heat generated by it cannot be directly transferred to the cooling liquid, but is transferred to the cooling liquid through the aluminum alloy radiator. After the high-temperature coolant flows through the warm air core of the air-conditioning HVAC system, the heat is transferred to the low-temperature air from the fan. After the air is heated, it enters the passenger compartment, thereby completing the defrosting, defogging or heating needs of the occupants of the electric vehicle. The heat generated by the PTC water heating unit is provided by electric energy. Because the heat exchange efficiency of the radiator is low, only a small part of the heat generated is transferred to the coolant, and most of the heat is wasted. In order to complete the defrosting, defogging or The heating needs of the occupants need to consume more electricity.
电动汽车实现除霜、除雾和舒适性需求过程中，如何将PTC水加热单元的热量高效地传递给冷却液，以减少电能的损耗是最重要的环节。In the process of defrosting, defogging and comfort requirements of electric vehicles, how to efficiently transfer the heat of the PTC water heating unit to the coolant to reduce the loss of electric energy is the most important link.
发明内容 Contents of the invention
为了解决上述问题，本发明提供了一种可以使电动汽车空调PTC水加热单元的热量被冷却液高效地吸收的具有对流换热功能的散热器装置。In order to solve the above problems, the present invention provides a radiator device with convective heat exchange function that can efficiently absorb the heat of the PTC water heating unit of the electric vehicle air conditioner by the cooling liquid.
本发明技术方案为：一种具有对流换热功能的散热器装置包括具有进液口和出液口的壳体和安装于壳体内的散热器，所述散热器下部设有多个相互平行布置的用于对流换热的散热器肋片，相邻散热器肋片之间及靠近壳体的散热器肋片与壳体内壁之间均设有冷却液流通通道，散热器肋片内部设有用于布置PTC加热元件的安装槽，散热器肋片侧面为呈波纹状的换热面。The technical solution of the present invention is: a radiator device with convective heat exchange function includes a shell with a liquid inlet and a liquid outlet and a radiator installed in the shell, the lower part of the radiator is provided with a plurality of mutually parallel arrangements The radiator fins used for convective heat exchange are provided with cooling liquid circulation channels between adjacent radiator fins and between the radiator fins close to the shell and the inner wall of the shell. In the installation slot where the PTC heating element is arranged, the side of the radiator fin is a corrugated heat exchange surface.
进一步地，所述波纹状换热面的波与波之间的连接面为圆弧面。Further, the wave-to-wave connection surface of the corrugated heat exchange surface is an arc surface.
进一步地，所述一个散热器肋片换热面的波峰与相邻的另一个散热器肋片换热面的波峰相对应。Further, the crest of the heat exchange surface of one fin of the radiator corresponds to the crest of the heat exchange surface of another adjacent radiator fin.
进一步地，所述一个散热器肋片换热面的波峰与相邻的另一个散热器肋片换热面的波谷相对应。Further, the crest of the heat exchange surface of one fin of the radiator corresponds to the trough of the heat exchange surface of another adjacent radiator fin.
进一步地，所述散热器肋片的底部设有若干横向或纵向的增加冷却液扰动的凹槽。Further, the bottom of the radiator fins is provided with several transverse or longitudinal grooves to increase the turbulence of the cooling liquid.
更进一步地，所述壳体内壁与散热器肋片相对的位置呈波纹状，靠近壳体的散热器肋片的换热面的波峰与壳体的波纹状内壁的波谷相对应。Furthermore, the position where the inner wall of the housing is opposite to the fins of the radiator is corrugated, and the crests of the heat exchange surface of the fins close to the housing correspond to the troughs of the corrugated inner wall of the housing.
本发明提供了一种用于电动汽车的空调PTC铝合金散热器装置，其与发热单元和壳体组合而成一个高效换热系统。该散热器装置具有波纹状强化对流换热面，结构简单，增加了散热肋片流道之间湍流的生成率，降低了发热元件和冷却媒质之间的热阻，提高了铝合金散热器的强化对流换热效率。这种对流换热特征可以有效解决纯电动汽车前风窗除霜、除雾以及乘员取暖的问题。The invention provides an air-conditioning PTC aluminum alloy radiator device for an electric vehicle, which is combined with a heating unit and a housing to form a high-efficiency heat exchange system. The radiator device has a corrugated enhanced convection heat transfer surface, a simple structure, increases the generation rate of turbulent flow between the cooling fin flow channels, reduces the thermal resistance between the heating element and the cooling medium, and improves the performance of the aluminum alloy radiator. Enhance convective heat transfer efficiency. This convective heat transfer feature can effectively solve the problems of pure electric vehicle front window defrosting, defogging and occupant heating.
附图说明 Description of drawings
图1 为本发明和加热元件的装配示意图。Fig. 1 is the assembly diagram of the present invention and heating element.
图2 为本发明的散热器示意图。Fig. 2 is the schematic diagram of radiator of the present invention.
图3 为本发明散热器肋片底部呈波纹面的示意图。Fig. 3 is the schematic diagram that the fin bottom of the radiator of the present invention is a corrugated surface.
图4 为本发明散热器肋片的局部放大图。Fig. 4 is the partial enlarged view of radiator fin of the present invention.
图5 为本发明散热器肋片底部凹槽局部放大图。Fig. 5 is a partially enlarged view of the groove at the bottom of the fin of the radiator of the present invention.
图6 为本发明波纹状换热面波峰对波峰的散热器水平断面示意图。Fig. 6 is a schematic diagram of a horizontal cross-section of a radiator with a corrugated heat exchange surface peak-to-peak in the present invention.
图7 为本发明波纹状换热面波峰对波峰的散热器水平断面局部放大图。Fig. 7 is a partial enlarged view of the horizontal section of the radiator of the corrugated heat exchange surface peak-to-peak of the present invention.
图8 为本发明波纹状换热面波峰对波谷的散热器水平断面示意图。Fig. 8 is a schematic diagram of a horizontal cross-section of a radiator with corrugated heat exchange surface crests and troughs according to the present invention.
图9 为本发明波纹状换热面波峰对波谷的散热器水平断面局部放大图。Fig. 9 is a partial enlarged view of the horizontal section of the radiator of the corrugated heat exchange surface of the present invention, where the crests are against the troughs.
图10 为本发明呈正弦波换热面波峰对波谷的散热器水平断面示意图。Fig. 10 is a schematic diagram of a horizontal cross-section of a radiator of the present invention showing a sine wave heat exchange surface peak to trough.
图11为本发明呈正弦波换热面波峰对波谷的散热器水平断面局部放大图。Fig. 11 is a partially enlarged view of a horizontal cross-section of a radiator in the present invention showing a sinusoidal wave heat transfer surface peak-to-trough.
图12 为本发明垂向断面轮廓示意图。Fig. 12 is a schematic diagram of the vertical section profile of the present invention.
具体实施方式 Detailed ways
以下结合附图对本发明作进一步说明：The present invention will be further described below in conjunction with accompanying drawing:
如图1、图2所示，本发明的具有对流换热功能的散热器装置包括具有进液口1和出液口4的壳体5和安装于壳体5内的散热器2，散热器2下部设有多个相互平行布置的用于对流换热的散热器肋片7，相邻散热器肋片之间、靠近壳体的散热器肋片与壳体内壁之间均设有冷却液流通通道，散热器肋片7内部设有用于布置PTC加热元件3的安装槽6，散热器肋片7侧面为呈波纹状的换热面8。如图4所示，换热面8的波与波之间的连接面为圆弧面，一个散热器肋片换热面的波峰11与相邻的另一个散热器肋片换热面的波峰12或波谷10相对应。为使冷却液流动的更为顺畅，将壳体内壁14与散热器肋片相对的位置设计呈波纹状，靠近壳体的散热器肋片的换热面的波峰与壳体的波纹状内壁的波谷相对应。如图3、如图5所示散热器肋片的底部9在沿冷却液的主流方向设有若干横向的增加冷却液扰动、加快转热的凹槽13。As shown in Fig. 1 and Fig. 2, the radiator device with convective heat exchange function of the present invention comprises a
本发明的工作过程为：如图1、图2所示，冷却液（50%的水和50%乙二醇的混合溶液）首先流过冷却液进口1，然后与散热器肋片2的波纹状的换热面7发生热交换而吸热。此时，散热器肋片2的凹槽6已吸收了来自PTC加热元件3的热量。最后吸热后的较高温度的冷却液经过冷却液出口4流入电动汽车空调HVAC系统的暖风芯体内，进而实现纯电动汽车的除霜和除雾以及暖风功能。The working process of the present invention is: as shown in Figure 1 and Figure 2, the cooling liquid (the mixed solution of 50% water and 50% ethylene glycol) first flows through the cooling liquid inlet 1, and then corrugated with the
为分析实施例的差别，对局部进行剖面分析。本发明具有波纹状强化换热功能的散热器装置，其水平断面轮廓如图6所示，散热器肋片局部放大如图7所示，图中14是壳体内壁断面线，15是散热器肋片断面线，16是加热元件的断面线。散热器肋片断面呈波纹状线条，一个换热面的波峰与另一个换热面的波峰相对应。冷却液的过流断面形状呈紧缩-扩张-紧缩的形式，是不断变化的，有效加快换热效率。In order to analyze the difference between the examples, a cross-sectional analysis is performed locally. The radiator device of the present invention has a corrugated enhanced heat transfer function, its horizontal cross-sectional profile is shown in Figure 6, and the partial enlargement of the fins of the radiator is shown in Figure 7, in which 14 is the section line of the inner wall of the shell, and 15 is the radiator The rib section line, 16 is the section line of the heating element. The cross-section of the fins of the radiator is corrugated, and the peaks of one heat exchange surface correspond to the peaks of the other heat exchange surface. The cross-sectional shape of the coolant flow is in the form of contraction-expansion-contraction, which is constantly changing, which effectively speeds up the heat transfer efficiency.
本发明具有波纹状强化换热功能的散热器装置，其水平断面轮廓特征可以如图8所示，散热器肋片局部放大如图9所示，图中14是壳体内壁断面线，15是散热器肋片断面线，16是加热元件的断面线。散热器肋片的断面呈波纹状线条，一个换热面的波峰与另一个换热面的波谷相对应。冷却液的过流断形状是一致的，流路呈现“小s”形式，减小冷却液的流动阻力，使冷却液的流动更为顺畅。The radiator device of the present invention has a corrugated enhanced heat transfer function, its horizontal cross-sectional profile features can be shown in Figure 8, and the partial enlargement of the fins of the radiator is shown in Figure 9, in which 14 is the section line of the inner wall of the shell, and 15 is Radiator rib section line, 16 is the section line of heating element. The cross-section of the fins of the radiator is corrugated lines, and the crests of one heat exchange surface correspond to the troughs of the other heat exchange surface. The shape of the flow break of the coolant is consistent, and the flow path presents a "small s" shape, which reduces the flow resistance of the coolant and makes the flow of the coolant smoother.
本发明具有波纹状强化换热功能的散热器装置，其水平断面轮廓特征可以如图10所示，散热器肋片局部放大图如图11所示，图中14是壳体内壁断面线，15是散热器肋片断面线，16是加热元件的断面线。散热器的断面呈完整正弦波特征，一个换热面的波峰与另一个换热面的波谷相对应。冷却液的过流断形状是一致的，流路呈现“大S”形式，使冷却液流动顺畅的同时加快换热效率。The radiator device of the present invention has a corrugated enhanced heat transfer function, its horizontal cross-sectional profile features can be shown in Figure 10, and the partial enlarged view of the fins of the radiator is shown in Figure 11, in which 14 is the section line of the inner wall of the shell, and 15 16 is the section line of the radiator rib, and 16 is the section line of the heating element. The cross-section of the radiator is characterized by a complete sine wave, with the crests of one heat exchange surface corresponding to the troughs of the other heat exchange surface. The shape of the coolant flow break is consistent, and the flow path presents a "big S" shape, which makes the coolant flow smoothly and speeds up the heat exchange efficiency.
本发明具有波纹状强化换热功能的散热器装置，其垂向端面特征的散热器底部如图12所示，17是壳体底部的断面线，18是散热器肋片底部的纹状轮廓线，19是加热元件的轮廓线，波纹状的肋片底部可以有效地增加换热效率。The radiator device of the present invention has a corrugated enhanced heat transfer function. The bottom of the radiator with its vertical end face is shown in Figure 12, 17 is the section line at the bottom of the shell, and 18 is the corrugated contour line at the bottom of the fins of the radiator. , 19 is the contour line of the heating element, and the corrugated fin bottom can effectively increase the heat exchange efficiency.
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| WO2015058692A1 (en) * | 2013-10-22 | 2015-04-30 | Byd Company Limited | Positive temperature coefficient heating assembly and defroster for a vehicle |
| US9803886B2 (en) | 2013-08-30 | 2017-10-31 | Yun-Shan Chang | Instantaneous water-heating dispensing device and heating module thereof |
| CN109473750A (en) * | 2018-11-09 | 2019-03-15 | 上海应用技术大学 | New energy vehicle battery cooling structure |
| CN112423572A (en) * | 2020-12-17 | 2021-02-26 | 安徽祥博传热科技有限公司 | Phase change heat radiator easy for bubble generation and escape |
| US11643029B2 (en) | 2018-11-12 | 2023-05-09 | Toyota Jidosha Kabushiki Kaisha | Autonomous driving device module mounting structure and autonomous driving electric vehicle |
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Application publication date: 20130206 |