WO2024002183A1 - 用于半导体制冷片的换热系统 - Google Patents

用于半导体制冷片的换热系统 Download PDF

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Publication number
WO2024002183A1
WO2024002183A1 PCT/CN2023/103311 CN2023103311W WO2024002183A1 WO 2024002183 A1 WO2024002183 A1 WO 2024002183A1 CN 2023103311 W CN2023103311 W CN 2023103311W WO 2024002183 A1 WO2024002183 A1 WO 2024002183A1
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Prior art keywords
heat exchange
condenser
heat
liquid
semiconductor refrigeration
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PCT/CN2023/103311
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English (en)
French (fr)
Inventor
王宜锋
韦世鹏
梁志滔
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莱尔德热系统(深圳)有限公司
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Publication of WO2024002183A1 publication Critical patent/WO2024002183A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • 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

Definitions

  • the utility model relates to a heat exchange system for semiconductor refrigeration fins.
  • This utility model is to provide a heat exchange system for semiconductor refrigeration fins, which has high heat exchange efficiency and can effectively ensure the heat dissipation requirements of the semiconductor refrigeration fins.
  • a heat exchange system for a semiconductor refrigeration chip including: a heat exchange base, a gas pipe, a condenser, a liquid pipe and a cooling fan, the heat exchange base is in close contact with the hot surface of the semiconductor refrigeration chip, and the The heat exchange base is provided with a sealed heat absorption cavity, and liquid refrigerant is stored in the heat absorption cavity.
  • the condenser is placed tilted or vertically, and the condenser is located above the heat exchange base.
  • the heat-absorbing cavity is connected to the upper air inlet of the condenser through the gas pipe, the lower liquid outlet of the condenser is connected to the heat-absorbing cavity through the liquid pipe, and the cooling fan is located at the side of the condenser.
  • the lower end of the gas pipe is located at the top of the heat absorption cavity.
  • the lower end of the liquid pipe is located at the bottom of the heat absorption cavity, and the lower end of the liquid pipe is located below the liquid surface of the liquid refrigerant.
  • the condenser is a microchannel condenser.
  • thermal conductive grease is coated between the heat exchange base and the semiconductor refrigeration chip.
  • the heat exchange system for semiconductor refrigeration fins provided by the utility model is provided with a heat absorption cavity with liquid refrigerant in the heat exchange base, and the condenser is tilted or vertically located on the heat exchange base. above, and the condenser is connected to the heat absorption cavity through gas pipes and liquid pipes respectively, thereby utilizing the phase change process of the refrigerant to absorb heat, enhancing the heat transfer capacity of the heat exchange interface, and effectively solving the high power density of high-power semiconductor refrigerators.
  • the heat dissipation problem improves the refrigeration capacity of the semiconductor refrigerator and expands its application scope; and the circulating flow of the refrigerant of the present invention can be driven by its own pressure difference and gravity difference, without the need for an additional pump or compressor to drive the refrigerant. Complete the circulation flow and avoid more energy consumption.
  • Figure 1 is a schematic structural diagram of a heat exchange system for semiconductor refrigeration fins according to an embodiment of the present invention.
  • connection in the description of the present invention, unless otherwise expressly stipulated and limited, if the term "connection” appears to indicate the connection relationship between components, the term should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Disassembly and connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components or an interaction between two components.
  • connection can be a fixed connection or a removable connection.
  • Disassembly and connection, or integration it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components or an interaction between two components.
  • one embodiment of the present utility model provides a heat exchange system for semiconductor refrigeration fins, including: a heat exchange base 1, a gas pipe 2, a condenser 3, a liquid pipe 4 and a cooling fan 5.
  • the base 1 is in close contact with the hot surface of the semiconductor refrigeration piece 6.
  • the heat exchange base 1 is provided with a closed heat-absorbing cavity 7.
  • Liquid refrigerant 8 is stored in the heat-absorbing cavity 7.
  • the condenser 3 is placed tilted or vertically.
  • the condenser 3 is located above the heat exchange base 1, the heat absorption cavity 7 is connected to the upper air inlet of the condenser 3 through the gas pipe 2, and the lower end liquid outlet of the condenser 3 is connected to the heat absorption cavity 7 through the liquid pipe 4 , the cooling fan 5 is located on one side of the condenser 3.
  • the high power density heat dissipation problem of the power semiconductor refrigerator improves the refrigeration capacity of the semiconductor refrigerator and expands its application range; and the condenser 3 is placed tilted or vertically and is located above the heat exchange base 1 so that the refrigerant 8
  • the circular flow is driven by its own pressure difference and gravity difference. There is no need for additional pumps or compressors to drive the refrigerant to complete the circular flow, thus avoiding more energy consumption.
  • the lower end of the gas pipe 2 is located at the top of the heat absorption chamber 7 .
  • This structural solution is designed to facilitate the upward flow of the gaseous refrigerant 8, that is, to the gas pipe 2.
  • the lower end of the liquid pipe 4 is located at the bottom of the heat absorption chamber 7 , and the lower end of the liquid pipe 4 is located below the liquid surface of the liquid refrigerant 8 .
  • This structural design can effectively prevent the gaseous refrigerant 8 from flowing out of the liquid pipe 4 .
  • condenser 3 is a microchannel condenser. This structural design can effectively improve the condensation effect of the condenser 3.
  • thermal conductive grease is coated between the heat exchange base 1 and the semiconductor cooling plate 6 .
  • Thermal conductive grease can effectively reduce the thermal resistance between the heat exchange base 1 and the semiconductor refrigeration fin 6, thereby improving the heat dissipation effect.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

本实用新型公开一种用于半导体制冷片的换热系统，包括：换热基座、气体管道、冷凝器、液体管道和散热风扇，换热基座与半导体制冷片的热面紧密接触，换热基座设置有密闭的吸热腔，吸热腔内存储有液态的制冷剂，冷凝器倾斜或竖直放置，且冷凝器位于换热基座的上方，吸热腔通过气体管道连通于冷凝器的上端进气口，冷凝器的下端出液口通过液体管道连通于吸热腔，散热风扇位于冷凝器的一侧；该半导体制冷片的换热系统换热效率高，能有效保证半导体制冷片的散热需求。

Description

用于半导体制冷片的换热系统 技术领域
本实用新型涉及一种用于半导体制冷片的换热系统。
背景技术
目前，市场上绝大部分的半导体制冷器散热都是采用风冷散热，其主要部件包含：半导体制冷片翅片式散热器散热风扇。半导体制冷片的热面将热量传递给翅片式散热器，在散热风扇的作用下，通过空气对流换热，将热量最终传递给环境。也有少量会采用液冷板加泵驱动的液冷循环散热的方式进行散热，由于液体的比热大，换热器内的热对流也强化了传热效果，对散热量有了比较明显的提升；随着客户端的散热需求越来越高，半导体制冷片的功率也越来越大，现在制冷量达到300-400W的单个半导体制冷片产品都已经量产，对应的制冷片的热面散热量要达到600-800W,而要在半导体制冷片仅仅30平方厘米左右的换热面积上实现600-800W的换热量，无论采用风冷还是液冷的方式，都已经无法满足正常的散热需求。
实用新型内容
本实用新型的目的在于提供一种用于半导体制冷片的换热系统，其换热效率高，能有效保证半导体制冷片的散热需求。
为达此目的，本实用新型采用以下技术方案：
提供一种用于半导体制冷片的换热系统，包括：换热基座、气体管道、冷凝器、液体管道和散热风扇，所述换热基座与半导体制冷片的热面紧密接触，所述换热基座设置有密闭的吸热腔，所述吸热腔内存储有液态的制冷剂，所述冷凝器倾斜或竖直放置，且所述冷凝器位于所述换热基座的上方，所述吸热腔通过所述气体管道连通于所述冷凝器的上端进气口，所述冷凝器的下端出液口通过所述液体管道连通于所述吸热腔，所述散热风扇位于所述冷凝器的一侧。
作为用于半导体制冷片的换热系统的一种优选方案，所述气体管道的下端位于所述吸热腔内的最上方。
作为用于半导体制冷片的换热系统的一种优选方案，所述液体管道的下端位于所述吸热腔内的底部，且所述液体管道的下端位于所述液态的制冷剂的液面下方。
作为用于半导体制冷片的换热系统的一种优选方案，所述冷凝器为微通道冷凝器。
作为用于半导体制冷片的换热系统的一种优选方案，所述换热基座与所述半导体制冷片之间涂有导热脂。
本实用新型的有益效果：本实用新型提供的用于半导体制冷片的换热系统通过在换热基座内设置有带液体制冷剂的吸热腔，冷凝器倾斜或竖直位于换热基座的上方，且冷凝器分别通过气体管道和液体管道连接于吸热腔，从而利用制冷剂吸热的相变过程，增强换热界面的换热能力，有效解决大功率半导体制冷器的高功率密度散热的问题，提高半导体制冷器的制冷能力，扩展其应用范围；且本实用新型制冷剂的循环流动依靠自身压力差和重力差的作用驱动就能实现，无需额外的泵或压缩机驱动制冷剂完成循环流动，避免更多能源的消耗。
附图说明
为了更清楚地说明本实用新型实施例的技术方案，下面将对本实用新型实施例中所需要使用的附图作简单地介绍。显而易见地，下面所描述的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本实用新型一实施例所述的用于半导体制冷片的换热系统的结构示意图。
图中：
1、换热基座；2、气体管道；3、冷凝器；4、液体管道；5、散热风扇；6、
半导体制冷片；
7、吸热腔；8、制冷剂。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。
其中，附图仅用于示例性说明，表示的仅是示意图，而非实物图，不能理解为对本专利的限制；为了更好地说明本实用新型的实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。
本实用新型实施例的附图中相同或相似的标号对应相同或相似的部件；在本实用新型的描述中，需要理解的是，若出现术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
在本实用新型的描述中，除非另有明确的规定和限定，若出现术语“连接”等指示部件之间的连接关系，该术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个部件内部的连通或两个部件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型中的具体含义。
参照图1,本实用新型一实施例提供了一种用于半导体制冷片的换热系统，包括：换热基座1、气体管道2、冷凝器3、液体管道4和散热风扇5,换热基座1与半导体制冷片6的热面紧密接触，换热基座1设置有密闭的吸热腔7,吸热腔7内存储有液态的制冷剂8,冷凝器3倾斜或竖直放置，且冷凝器3位于换热基座1的上方，吸热腔7通过气体管道2连通于冷凝器3的上端进气口，冷凝器3的下端出液口通过液体管道4连通于吸热腔7,散热风扇5位于冷凝器3的一侧。
上述技术方案中，吸热腔7内的液态的制冷剂8吸收来自半导体制冷片6的热量后，迅速达到沸点汽化，形成气态的制冷剂8带着大量热量通过气体管道2进入到冷凝器3内，在散热风扇5的作用下，气态的制冷剂8在冷凝器3内放热后冷凝成液体，通过液体管道4回到吸热腔7内，完成液态-气态-液态的循环过程。从而利用制冷剂吸热的相变过程，增强换热界面的换热能力，有效解决大 功率半导体制冷器的高功率密度散热的问题，提高半导体制冷器的制冷能力，扩展其应用范围；且冷凝器3倾斜或竖直放置，并位于换热基座1的上方从而使得制冷剂8的循环流动依靠自身压力差和重力差的作用驱动就能实现，无需额外的泵或压缩机驱动制冷剂完成循环流动，避免更多能源的消耗。
在本实施例中，气体管道2的下端位于吸热腔7内的最上方。此结构方案设计便于气态的制冷剂8向上流动，即向气体管道2流动。
在本实施例中，液体管道4的下端位于吸热腔7内的底部，且液体管道4的下端位于液态的制冷剂8的液面下方。此结构方案设计能有效防止气态的制冷剂8从液体管道4流出。
在一些实施例中，冷凝器3为微通道冷凝器。此结构方案设计能有效提高冷凝器3的冷凝效果。
在一些实施例中，换热基座1与半导体制冷片6之间涂有导热脂。导热脂能有效降低换热基座1与半导体制冷片6之间的热阻，从而提高散热效果。
需要声明的是，上述具体实施方式仅仅为本实用新型的较佳实施例及所运用技术原理。本领域技术人员应该明白，还可以对本实用新型做各种修改、等同替换、变化等等。但是，这些变换只要未背离本实用新型的精神，都应在本实用新型的保护范围之内。另外，本申请说明书和权利要求书所使用的一些术语并不是限制，仅仅是为了便于描述。

Claims (5)

  1. 一种用于半导体制冷片的换热系统，其特征在于，包括：换热基座(1)、气体管道(2)、冷凝器(3)、液体管道(4)和散热风扇(5),所述换热基座(1)与半导体制冷片(6)的热面紧密接触，所述换热基座(1)设置有密闭的吸热腔(7),所述吸热腔(7)内存储有液态的制冷剂(8),所述冷凝器(3)倾斜或竖直放置，且所述冷凝器(3)位于所述换热基座(1)的上方，所述吸热腔(7)通过所述气体管道(2)连通于所述冷凝器(3)的上端进气口，所述冷凝器(3)的下端出液口通过所述液体管道(4)连通于所述吸热腔(7),所述散热风扇(5)位于所述冷凝器(3)的一侧。
  2. 根据权利要求1所述的用于半导体制冷片的换热系统，其特征在于，所述气体管道(2)的下端位于所述吸热腔(7)内的最上方。
  3. 根据权利要求1所述的用于半导体制冷片的换热系统，其特征在于，所述液体管道(4)的下端位于所述吸热腔(7)内的底部，且所述液体管道(4)的下端位于所述液态的制冷剂(8)的液面下方。
  4. 根据权利要求1所述的用于半导体制冷片的换热系统，其特征在于，所述冷凝器(3)为微通道冷凝器。
  5. 根据权利要求1所述的用于半导体制冷片的换热系统，其特征在于，所述换热基座(1)与所述半导体制冷片(6)之间涂有导热脂。
PCT/CN2023/103311 2022-06-29 2023-06-28 用于半导体制冷片的换热系统 WO2024002183A1 (zh)

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CN217952747U (zh) * 2022-06-29 2022-12-02 莱尔德热系统(深圳)有限公司 用于半导体制冷片的换热系统

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