Force sensor
AssigneePixart Imaging Inc.
InventorsYen-Po Chen, Hao-Che Liu
Life of this patent
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Abstract
A force sensor includes two sheets facing each other, two electrode layers respectively installed on inner sides of the two sheets an insulating elastomer sandwiched between the two electrode layers, a bumper disposed on one of the two sheets, and a bonding layer that connects the two sheets and that is arranged outside of the insulating elastomer. The bumper includes a base body and a bumper that is connected to and protrudes from the base body. When the force sensor receives an external force through the protruding body of the bumper, at least one of the two sheets is pressed by the base body to have an elastic deformation, so that the insulating elastomer is elastically deformed, and the bonding layer is elastically deformed.
Claims20
A force sensor, comprising:
- a first sheet having a first inner surface and a first outer surface that is opposite to the first inner surface;
- a second sheet having a second inner surface and a second outer surface that is opposite to the second inner surface, wherein the second inner surface is spaced apart from and faces toward the first inner surface along a thickness direction;
- two electrode layers respectively installed on the first inner surface and the second inner surface;
- an insulating elastomer sandwiched between the two electrode layers;
- a bumper including:
- a base body fixed to the second outer surface of the second sheet through a bottom side thereof;
- and
- a protruding body protruding from the base body, wherein a projection space defined by projecting the bumper toward the first sheet along the thickness direction covers at least part of the insulating elastomer;
- and
- a bonding layer connected in-between the first inner surface of the first sheet and the second inner surface of the second sheet and located outside of the insulating elastomer;
- wherein, when the force sensor receives an external force through the protruding body of the bumper, the second sheet is pressed by the base body to have an elastic deformation, so that the insulating elastomer is elastically deformed, and the bonding layer is elastically deformed.
A force sensor, comprising:
- a first sheet having a first inner surface and a first outer surface that is opposite to the first inner surface;
- a second sheet having a second inner surface and a second outer surface that is opposite to the second inner surface, wherein the second inner surface is spaced apart from and faces toward the first inner surface along a thickness direction;
- two electrode layers respectively installed on the first inner surface and the second inner surface;
- an insulating elastomer sandwiched between the two electrode layers;
- a bumper including:
- a base body fixed to the second outer surface of the second sheet through a bottom side thereof;
- and
- a protruding body protruding from the base body, wherein a projection space defined by projecting the bumper toward the first sheet along the thickness direction covers at least part of the insulating elastomer;
- and
- a bonding layer located outside of the insulating elastomer and including a supporting body, a first bonding film connected to one side of the supporting body, and a second bonding film that is connected to another side of the supporting body, wherein the supporting body is connected to the first inner surface of the first sheet through the first bonding film, and the supporting body is connected to the second inner surface of the second sheet through the second bonding film;
- wherein, when the force sensor receives an external force through the protruding body of the bumper, the second sheet is pressed by the base body to have an elastic deformation, so that the insulating elastomer is elastically deformed, and at least one of the first bonding film and the second bonding film is elastically deformed.
Dependencies are inferred from the claim text.