Coupling structure for vacuum exhaust device and vacuum exhaust system

摘要

Provided is a coupling structure for vacuum exhaust devices each including a pump chamber and a casing that demarcates the pump chamber. The coupling structure includes a first end surface formed on a first side of the casing, and a second end surface formed on the second side of the casing, the second side being the opposite side of the first side. The casing of a first vacuum exhaust device and the casing of a second vacuum exhaust device among a plurality of vacuum exhaust devices are arranged to be directly superposed on each other such that the first end surface provided to the first vacuum exhaust device and the second end surface provided to the second vacuum exhaust device come into contact with each other. By fastening the first end surface and the second end surface, the first vacuum exhaust device and the second vacuum exhaust device are connected to each other such that gas can flow between the casing of the first vacuum exhaust device and the casing of the second vacuum exhaust device.

主权项

1. A coupling structure for a plurality of vacuum exhaust devices, each of the vacuum devices including a pump chamber and a casing that encases the pump chamber, and each of the vacuum exhaust devices including a motor connected to the casing, the coupling structure comprising:
a first end surface formed on a first side of the casing; a second end surface formed on a second side of the casing, the second side being an opposite side of the first side; a plurality of mount portions each including the first end surface and each being formed on the first side of the casing; and a plurality of leg portions each including the second end surface and each being formed on the second side of the casing, wherein a casing of a first vacuum exhaust device and a casing of a second vacuum exhaust device among the plurality of vacuum exhaust devices are arranged to be directly superposed on each other such that the second end surface provided to the first vacuum exhaust device and the first end surface provided to the second vacuum exhaust device come into contact with each other, and wherein by fastening the first end surface of the second vacuum exhaust device and the second end surface of the first vacuum exhaust device, the first vacuum exhaust device and the second vacuum exhaust device are connected to each other such that gas flows between the casing of the first vacuum exhaust device and the casing of the second vacuum exhaust device.