Apparatus for detecting an electrical variable of a rechargeable battery, and method for producing said apparatus
First Claim
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1. An apparatus for recording an electrical variable of a rechargeable battery, comprising:
- a printed circuit board,a measurement element that extends generally parallel to a plane of the printed circuit board, anda contact element which has a first and a second end with the contact element being electrically connected at the first end to the printed circuit board,wherein the second end of the contact element is electrically connected to the measurement element via a welded joint, andwherein an area of the measurement element proximate the welded joint has a reduced material thickness in a direction perpendicular to the plane of the printed circuit board as compared to areas of the measurement element away from the welded joint.
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Abstract
An apparatus for detecting an electrical variable of a rechargeable battery and a method for producing said apparatus, has: a measuring element (1), a printed circuit board (4) and a contact element (5) having a first end (6) and a second end (7), wherein the first end (6) of the contact element (5) is electrically connected to the printed circuit board (4), and the second end (7) of the contact element (5) is electrically connected to the measuring element (1) by a welded joint.
11 Citations
17 Claims
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1. An apparatus for recording an electrical variable of a rechargeable battery, comprising:
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a printed circuit board, a measurement element that extends generally parallel to a plane of the printed circuit board, and a contact element which has a first and a second end with the contact element being electrically connected at the first end to the printed circuit board, wherein the second end of the contact element is electrically connected to the measurement element via a welded joint, and wherein an area of the measurement element proximate the welded joint has a reduced material thickness in a direction perpendicular to the plane of the printed circuit board as compared to areas of the measurement element away from the welded joint. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for producing an apparatus for recording an electrical variable of a rechargeable battery having a printed circuit board, a measurement element that extends generally parallel to a plane of the printed circuit board, and a contact element which has a first and a second end with the contact element being electrically connected at the first end to the printed circuit board, the method comprising the step of:
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making an electrical contact between the second end of the contact element and the measurement element by means of a welding process; wherein the welded electrical contact is formed at an area of the measurement element having a reduced material thickness in a direction perpendicular to the plane of the printed circuit board as compared to areas of the measurement element away from the welded joint. - View Dependent Claims (9, 10, 11, 12)
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13. An apparatus for recording an electrical variable of a rechargeable battery, comprising:
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a measuring device comprising a resistor and terminals, a printed circuit board and a contact element which has a first and a second end with the contact element being electrically connected at the first end to the printed circuit board, wherein the second end of the contact element is electrically connected to a terminal of the measuring device via a welded joint; and wherein a material thickness of the terminal in a direction perpendicular to a plane of the printed circuit board is reduced compared to a material thickness of the resistor in the direction perpendicular to the plane of the printed circuit board. - View Dependent Claims (14, 15, 16, 17)
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Specification