Tire pressure monitoring unit and method for producing a tire pressure monitoring unit
First Claim
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1. A tire pressure monitoring unit, comprising:
- a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information;
a power source supplying power to the measurement and transmission electronics unit;
a plastic body in which the measurement and transmission electronics unit and also the power source are embedded; and
a metal carrier sheet comprising a main portion and a fastening portion, said main portion carrying the measurement and transmission electronics unit and also the power source, said fastening portion protruding out from the plastic body and having a fastening hole.
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Abstract
A tire pressure monitoring unit includes a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information. A power source supplies power to the measurement and transmission electronics unit. A plastic body embeds the measurement and transmission electronics unit and also the power source. A metal carrier sheet, which carries the measurement and transmission electronics unit and also the power source, protrudes out from the plastic body with a fastening portion, which has a fastening hole. A method for producing a tire pressure monitoring unit is also disclosed.
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Citations
15 Claims
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1. A tire pressure monitoring unit, comprising:
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a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information; a power source supplying power to the measurement and transmission electronics unit; a plastic body in which the measurement and transmission electronics unit and also the power source are embedded; and a metal carrier sheet comprising a main portion and a fastening portion, said main portion carrying the measurement and transmission electronics unit and also the power source, said fastening portion protruding out from the plastic body and having a fastening hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tire pressure monitoring unit, comprising:
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a metal carrier sheet comprising a main portion and a fastening portion, the fastening portion including a fastening hole, the fastening hole configured for fitting the tire pressure monitoring unit onto a valve shaft or through which a screw can be passed; a circuit carrier plate attached to the metal carrier sheet; a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information, the measurement and transmission electronics unit disposed on the circuit carrier plate; a power source supplying power to the measurement and transmission electronics unit, the power source disposed on the circuit carrier plate; and an overmould plastic body embedding the main portion of the metal carrier sheet, the circuit carrier plate, the measurement and transmission electronics unit and the power source, where the fastening portion and the fastening hole protrude out from the overmould plastic body. - View Dependent Claims (12, 13, 14)
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15. A method for producing a tire pressure monitoring unit, wherein a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information and also a power source for supplying power to the measurement and transmission electronics unit are overmoulded with plastic so as to form a plastic casing of the tire pressure monitoring unit, wherein the measurement and transmission electronics unit and also the power source, before the overmoulding process, are arranged on a metal carrier sheet, which comprises a main portion, on which the measurement and electronics unit is arranged, and a fastening portion having a fastening hole, and during the overmoulding process the fastening portion is left free, such that the fastening portion protrudes out from the plastic casing formed by overmoulding.
Specification