Devices exploiting fluidic systems and actuators
View Patent ↗The application of fluidic systems to a variety of consumer devices would typically exploit fluidic structures of a few millimeters to a centimeter or so that are between the common fluidic realms of microfluidics and macrofluidics. For these devices power consumption, portability, batter operation etc. are significant factors in the design and implementation of these fluidic systems. However, the necessary range of fluidic device structures for electromagnetically driven high efficiency pumps, valves, switches, capacitors etc. require development to provide both the required functionality as well as to meet the user expectations for functionality, variability, cost, etc. but also lifetime, reliability, manufacturability etc. of the consumer devices exploiting these fluidic systems.
1. A device comprising:
a body; defining a plurality of bobbins;
a plurality of electromagnetically driven valve assemblies disposed within the body, each of the plurality of valve assemblies comprising:
a piston;
a bobbin within which the piston slides;
one or more electromagnetic coils disposed around the bobbin for sliding the piston within the bobbin; and
a first compliant gasket disposed at a first end of the bobbin comprising an input opening and an output opening to form a first valve associated with a respective valve assembly wherein when the piston is disposed adjacent the first compliant gasket the first valve is closed and fluid flow between the input opening and the output opening is blocked, and when the piston is disposed away from the first compliant gasket, the first valve is open and fluid can flow between the input opening and the output opening;
an electromagnetically driven fluidic pump comprising a pump input and a pump output; and
a first manifold comprising a plurality of inlets each fluidically coupled to a respective input opening of the first valve of the respective valve assembly and a plurality of outlets each fluidically coupled to a respective output opening of the first valve of the respective valve assembly, wherein the plurality of inlets are coupled to the pump outlet and the plurality of outlets are each coupled to a respective fluidic channel forming a predetermined portion of the device.
2. The device according to claim 1 , wherein each of the plurality of valve assemblies further comprise:
a second compliant gasket disposed at a second end of the bobbin, the second compliant gasket of each respective valve assembly comprising an input opening and an output opening to form a second valve of the respective valve assembly wherein
when the piston is disposed adjacent the second compliant gasket the second valve is closed and fluid flow between the input opening and the output opening is blocked, and
when the piston is disposed away from the first compliant gasket, the second valve is open and fluid can flow between the input opening and the output opening,
wherein the device further comprises:
a second manifold comprising a plurality of inlets each fluidically coupled to the input opening of the second compliant gasket of the respective valve assembly and a plurality of outlets each fluidic ally coupled to the output opening of the second compliant gasket of the respective valve assembly, wherein the plurality of outlets are coupled to the pump inlet and the plurality of inlets are each coupled to a respective fluidic channel forming a predetermined portion of the device.
3. The device according to claim 2 , wherein for each of the plurality of valve assemblies:
the outlet of the first manifold associated with the respective valve assembly and the inlet of the second manifold associated with the respective valve assembly are coupled to a common port.
4. The device according to claim 1 , wherein the plurality of inlets of the first manifold are all coupled to a common inlet coupled to the pump outlet.
5. The device according to claim 1 , wherein the plurality of first gaskets are formed on a single gasket disposed across the body.
6. The device according to claim 2 , wherein at least one of:
the plurality of first gaskets are formed on a single gasket disposed across the body; and
the plurality of second gaskets are formed on a single gasket disposed across the body.
7. The device according to claim 1 , wherein the bobbin of each of the respective valve assembly has at least one opening; and
the first gasket comprises a first region disposed adjacent to the body and a second region defining the inlet opening and outlet opening that projects into at least one opening of the bobbin.
8. The device according to claim 2 , wherein the bobbin of each of the respective valve assembly has at least one opening; and at least one of the first gasket and the second gasket comprises:
a first region disposed adjacent to the body and a second region defining the inlet opening and the outlet opening that projects into the at least one opening; and
the second region covers at least a peripheral region around the opening of the at least one opening which is larger than that defining a chamfer or shaped outer portion of the piston.