Test assembly and test tooling
View Patent ↗Provided are a test assembly and a test tooling, including: interfaces, where one end of the interface is configured to connect a device under test, and the interfaces include a first interface and a second interface; a first three-way valve, where the first three-way valve includes a first cut-in valve, a first vent valve, and a first test valve, another end of the first interface is connected to the first cut-in valve, and the first vent valve lets in atmospheric air and is able to open and close; a second three-way valve, where the second three-way valve includes a second cut-in valve, a second vent valve, and a second test valve, another end of the second interface is connected to the second cut-in valve, and the second vent valve lets in atmospheric air and is able to open and close; and a manifold.
1. A test assembly, characterized by comprising:
interfaces, wherein one end of the interfaces is configured to connect to a device under test, and the interfaces comprise at least a first interface and a second interface;
a first three-way valve, wherein the first three-way valve comprises a first cut-in valve, a first vent valve, and a first test valve, one end of the first interface is connected to the first cut-in valve, and the first vent valve lets in atmospheric air and is able to open and close;
a second three-way valve, wherein the second three-way valve comprises a second cut-in valve, a second vent valve, and a second test valve, one end of the second interface is connected to the second cut-in valve, and the second vent valve lets in atmospheric air and is able to open and close;
a manifold, wherein the first test valve is connected to the manifold and the second test valve is connected to the manifold; and
a sensor, wherein the manifold is connected to a test end of the sensor; and, wherein the test assembly further comprises a control unit configured to control the vent valve of each three-way valve to open and close, wherein when the control unit controls the first vent valve to open, the control unit controls the second vent valve to close, and when the control unit controls the second vent valve to open, the control unit controls the first vent valve to close.
2. The test assembly according to claim 1 , characterized in that the first cut-in valve and the first test valve have equal diameters.
3. The test assembly according to claim 1 , characterized in that a diameter of the manifold is more than 5 times a diameter of the first test valve.
4. The test assembly according to claim 3 , characterized in that the manifold comprises a manifold chamber, and a diameter of the manifold chamber is more than 5 times the diameter of the first test valve.
5. The test assembly according to claim 1 , characterized by comprising a plurality of the interfaces and at least as many three-way valves as the interfaces, wherein each of the three-way valves comprises a cut-in valve, a vent valve, and a test valve, the cut-in valve of each three-way valve is configured to connect to a respective interface, the vent valve of each three-way valve is configured to let in atmospheric air and is able to open and close, and the test valve of each three-way valve is configured to connect to the manifold.
6. A test tooling, characterized by comprising a box, wherein the test assembly according to claim 1 is disposed inside the box.
7. The test tooling according to claim 6 , characterized in that a box wall of the box further comprises openings and gas-guiding pipes, wherein the openings are connected to the interfaces via the gas-guiding pipes.
8. The test tooling according to claim 6 , characterized in that more than two such test assemblies are disposed inside the box.