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US 6,272,767 B1Granted
Environmental test chamber
AssigneeEnvirotronics
InventorsDwayne D. Botruff, Gregory J. Langfeldt
Life of this patent
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AssigneeEnvirotronics
InventorsDwayne D. Botruff, Gregory J. Langfeldt
Estimating the term…
An environmental test chamber comprises a first chamber and a second chamber separated by a partition. The first chamber receives one or more electronic components to be tested. The first chamber includes an exhaust area through which air is introduced to the first chamber and an intake area from which air is evacuated from the first chamber. The exhaust area and intake area are both fitted with a panel having a plurality of apertures. The size and/or the distance between the apertures is varied to provide a uniform airflow through the first chamber, thereby insuring that each electrical component housed within the first chamber experiences the desired temperature and humidity conditions. An air intake assembly is provided which draws air into a control panel chamber housing the electrical circuitry necessary to operate the environmental test chamber, and transports the air into the second chamber to thereby permit both the control panel chamber and the second chamber to receive ambient air. An air manifold is positioned below the partition and injects dry, compressed air upward through the partition to thereby pressurize the same. Pressurization of the partition assures that heated air and/or moisture residing within the first chamber does not migrate into the second chamber and thus avoids thermal and humidity gradients within the first chamber.
An environmental test chamber comprising a housing defining a chamber having a vertical cross section, said chamber having an exhaust region through which air is exhausted into said chamber, and an intake region through which air is evacuated from said chamber, wherein said exhaust region and said intake region are configured to provide a substantially uniform airflow across said vertical cross section of said chamber.
An environmental test chamber comprising a housing defining a first chamber, a second chamber, a control panel chamber positioned exterior to said first chamber and in fluid communication with said second chamber, and an air intake assembly carried by said housing, said air intake assembly providing an airflow through said control panel chamber and said second chamber.
An environmental test chamber having a first chamber and a second chamber separated by a partition formed having a plurality of vertical air channels interconnected with a plurality of horizontal air channels, said environmental test chamber comprising an air manifold formed with a plurality of air holes, wherein each air hole of said plurality of air holes is in registration with a vertical air channel of the plurality of vertical air channels, said air manifold injecting air within the vertical air channels to thereby pressurize the partition.
An environmental test chamber comprising a housing defining a chamber having a vertical cross section, said chamber having an exhaust region through which air is exhausted into said chamber, and an intake region through which air is evacuated from said chamber, an exhaust panel positioned in said exhaust region and an intake panel positioned in said intake region, wherein said exhaust panel and said intake panel each have at least a first section and a second section and a plurality of throughholes formed in said first section and said second section, wherein the distance between said throughholes formed in said first section is not equal to the distance between said throughholes formed in said second section to thereby provide a substantially uniform airflow across said vertical cross section of said chamber.
Dependencies are inferred from the claim text.