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    • 61. 发明授权
    • Thermoelectric cooling design
    • 热电冷却设计
    • US4917179A
    • 1990-04-17
    • US407679
    • 1989-09-14
    • Robert Giebeler
    • Robert Giebeler
    • B04B15/02F25B21/02
    • B04B15/02F25B21/02F25B2321/023Y10T29/49984
    • A thermoelectric cooling design of the type having a nonconducting substrate mounting thermoelectric coolers is improved. Provisions for a flexible can and improved heat dissipation from the thermoelectric coolers are provided. For improved thermal response, the refrigerated vacuum can is provided with thin walls of high purity aluminum with the result that deformation of the wall surface, especially the bottom wall surface can occur both with respect to installation. A plurality of can heat sinks are placed on the walls of the can to form a unitary and locally rigid side wall to the can at the point of attachment. At least one thermoelectric cooler is communicated to the can heat sinks at a first side for receiving heat energy from the can. A second discharge heat sink is communicated to each thermoelectric cooler for dissipating heat energy from both the can and the thermoelectric cooler. Spring biased connections move the respective heat sinks towards one another and clamp the thermoelectric cooler firmly therebetween. The heat sinks dynamically conform to dimensional changes at the cooler interface during installation. The discharge heat sinks are integrally cast with copper plugs placed in an aluminum mold and the aluminum cast about the copper plugs. The copper plug is preferably gold plated to prevent oxidation and form a heat conducting alloy with the aluminum. This enables heat transfer with a low temperature gradient to produce cooling with high efficiency.
    • 改进了具有安装热电冷却器的不导电衬底的类型的热电冷却设计。 提供了一种柔性罐的设计,并提供了热电冷却器的散热改善。 为了改善热响应,冷藏真空罐设置有高纯度铝的薄壁,结果是墙壁表面,特别是底壁表面的变形可以相对于安装而发生。 在罐的壁上放置多个罐式散热器,以在连接点处形成与罐相同的整体和局部刚性的侧壁。 至少一个热电冷却器在第一侧与罐体散热器连通,以从罐接收热能。 将第二放电散热器传送到每个热电冷却器,以从罐和热电冷却器中消散热能。 弹簧偏置连接将相应的散热器彼此相向移动并将热电冷却器紧固在其间。 散热器在安装过程中动态地符合冷却器界面的尺寸变化。 放电散热器通过放置在铝合金模具中的铜塞整体铸造,铝铸件围绕铜塞。 铜塞优选镀金以防止氧化并与铝形成导热合金。 这使得能够以低温度梯度的传热以高效率产生冷却。