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US 12,398,814 B2Granted
Valve, fluid control device, pressurizing device, and sphygmomanometer
AssigneeMurata Manufacturing Co., Ltd.
InventorYukiharu Kodama
Life of this patent
Estimating the term…
Abstract
A valve includes a housing, a membrane, and a hole. The housing includes a flat plate having a hole connectable to an external pump, a housing component having a hole connectable to a component to which a fluid is discharged, and a valve chamber held between a housing component including the flat plate and the housing component. The membrane divides a valve chamber into a space facing the flat plate and a space facing the housing component. The hole is connected to the space facing the flat plate and the space facing the housing component. The housing component has a hole that is connectable to an outside of the housing and that allows the fluid to flow out from the valve chamber.
Claims18
A valve comprising:
- a housing comprising:
- a first wall having a first hole connectable to an external pump,
- a second wall having a second hole connectable to a component to which a fluid is discharged, and
- a valve chamber held between the first wall and the second wall that oppose each other;
- at least one membrane dividing the valve chamber into a space facing the first wall and a space facing the second wall;
- and
- a communicating passage connecting the space facing the first wall and the space facing the second wall to each other,
- wherein the second wall has a third hole being connectable to an outside of the housing and allowing the fluid to flow out from the valve chamber,
- wherein, when viewed in a first direction of the housing in which the first wall, the membrane, and the second wall are arranged:
- the membrane, an opening surface of the first hole facing the valve chamber, and an opening surface of the third hole facing the valve chamber overlap one another,
- the communicating passage overlaps neither the opening surface of the first hole facing the valve chamber nor the opening surface of the third hole facing the valve chamber, and
- the opening surface of the first hole facing the valve chamber and the opening surface of the third hole facing the valve chamber at least partially overlap each other,
- wherein the first wall comprises a protrusion protruding toward the second wall, and
- wherein the first hole is provided in the protrusion.
11 more elements
A valve comprising:
- a housing comprising:
- a first wall having a first hole connectable to an external pump,
- a second wall having a second hole connectable to a component to which a fluid is discharged, and
- a valve chamber held between the first wall and the second wall that oppose each other;
- at least one membrane dividing the valve chamber into a space facing the first wall and a space facing the second wall;
- and
- a communicating passage connecting the space facing the first wall and the space facing the second wall to each other,
- wherein the second wall has a third hole being connectable to an outside of the housing and allowing the fluid to flow out from the valve chamber,
- wherein, when viewed in a first direction of the housing in which the first wall, the membrane, and the second wall are arranged:
- the membrane, an opening surface of the first hole facing the valve chamber, and an opening surface of the third hole facing the valve chamber overlap one another,
- the communicating passage overlaps neither the opening surface of the first hole facing the valve chamber nor the opening surface of the third hole facing the valve chamber, and
- the opening surface of the first hole facing the valve chamber and the opening surface of the third hole facing the valve chamber at least partially overlap each other,
- wherein the second hole comprises a first portion connectable to an outside of the housing and a second portion connectable to the space facing the second wall, and
- wherein, when viewed in the first direction, the second portion is greater than the first portion, and the first portion overlaps the second portion.
11 more elements
A valve comprising:
- a housing comprising:
- a first wall having a first hole connectable to an external pump,
- a second wall having a second hole connectable to a component to which a fluid is discharged, and
- a valve chamber held between the first wall and the second wall that oppose each other;
- at least one membrane dividing the valve chamber into a space facing the first wall and a space facing the second wall;
- a communicating passage connecting the space facing the first wall and the space facing the second wall to each other;
- and
- a holding plate holding the membrane that extends inward from an outer end of the valve chamber, when viewed in a first direction, of the housing in which the first wall, the membrane, and the second wall are arranged,
- wherein the second wall has a third hole being connectable to an outside of the housing and allowing the fluid to flow out from the valve chamber,
- wherein, when viewed in the first direction:
- the membrane, an opening surface of the first hole facing the valve chamber, and an opening surface of the third hole facing the valve chamber overlap one another,
- the communicating passage overlaps neither the opening surface of the first hole facing the valve chamber nor the opening surface of the third hole facing the valve chamber,
- the opening surface of the first hole facing the valve chamber and the opening surface of the third hole facing the valve chamber at least partially overlap each other, and
- wherein the communicating passage is provided in the holding plate.
11 more elements
Dependencies are inferred from the claim text.