Search

DE-102024210782-A1 - Electrical conductor for a current measuring device

DE102024210782A1DE 102024210782 A1DE102024210782 A1DE 102024210782A1DE-102024210782-A1

Abstract

The invention relates to an electrical conductor (10) for a current measuring device, comprising a first connection section (12) and a second connection section (14), and a measuring section (16) arranged between the first connection section (12) and the second connection section (14). At least one spring section (24, 26) is provided on the first and/or the second connection section (14, 16), in which the connection section (12, 14) consists of several superimposed, unconnected plates (28).

Inventors

  • Jürgen Stürzer

Assignees

  • AUMOVIO GERMANY GMBH

Dates

Publication Date
20260513
Application Date
20241108

Claims (10)

  1. Electrical conductor (10) for a current measuring device, with a first connection section (12) and a second connection section (14) and a measuring section (16) arranged between the first connection section (12) and the second connection section (14), wherein at least one spring section (24, 26) is provided on the first and/or on the second connection section (14, 16) in which the connection section (12, 14) consists of several superimposed, non-connected plates (28).
  2. Electrical conductor to Claim 1 , characterized in that the spring area (24, 26) extends over the entire width of the electrical conductor (10).
  3. Electrical conductor after one of the Claims 1 or 2 , characterized in that the spring area (24, 26) extends only over a connection section (12, 14) of the electrical conductor (10).
  4. Electrical conductor according to one of the preceding claims, characterized in that the spring area (24, 26) is essentially rectangular.
  5. Electrical conductor according to one of the preceding claims, characterized in that the at least two spring areas (24, 26) are arranged symmetrically with respect to the measuring area (16).
  6. Electrical conductor according to one of the preceding claims, characterized in that the plates (28) have the same thickness.
  7. Electrical conductor according to one of the preceding claims, characterized in that the measuring section (16) has a slot (18).
  8. Current sensor with electrical conductor according to one of the preceding claims, wherein the current sensor (30) comprises a circuit board (32) and at least one sensor element (34).
  9. Current sensor after Claim 8 , characterized in that at least one sensor element (34) is a Hall sensor.
  10. Current sensor after one of the Claims 8 or 9 , characterized in that the current sensor (30) has at least two sensor elements (34), wherein one sensor element (34) is arranged in a measuring section and one sensor element (34) is arranged in a current direction.

Description

The invention relates to an electrical conductor for a current measuring device. Information is a crucial component of modern vehicles. It is used, for example, to regulate control loops, share traffic information with the public, and improve vehicle safety. To obtain this information, the vehicle is equipped with numerous sensors that continuously collect data and transmit it to a control unit for analysis. One of the sensors installed in modern vehicles is a battery sensor. This sensor measures the current flowing from the battery. The battery sensor typically consists of an electrical conductor through which the current flows and a current sensor to measure the current. Because the current can be very small, the battery sensor must be designed to detect even very small currents. This can be achieved, for example, by using highly precise sensor elements or by modifying the structure of the electrical conductor. If the structure of the electrical conductor is altered, this can affect its stability, making the entire battery sensor more susceptible to external forces. Excessive forces can deform the battery sensor to such an extent that it can no longer accurately measure the current. The invention is based on the objective of providing an electrical conductor which enables a sufficiently accurate measurement of the current strength even with a changed structure of the electrical conductor. To solve the problem, an electrical conductor for a current measuring device is provided, comprising a first connection section, a second connection section, and a measuring section arranged between the first and second connection sections. At least one spring section is provided on the first and/or second connection section, in which the connection section consists of several stacked, unconnected plates. An electrical conductor is understood to be any flat object suitable for conducting an electric current. The electrical conductor is preferably made of copper. A current measuring device is understood to be any device capable of determining the current flowing through an electrical conductor. The current measuring device preferably comprises at least one sensor element and a printed circuit board supporting the sensor element. A connection section is any section that forms a portion of the electrical conductor and to which a cable can be connected. The connection section includes a connection element, preferably a borehole. The cable can preferably be attached to this connection element directly, for example by welding, or indirectly, for example by means of a screw. A measuring section is defined as any section from which, based on its physical properties, conclusions can be drawn about the current. The measuring section is preferably made of a copper-nickel-manganese alloy. Alternatively, the measuring section is made of copper. The measuring section is preferably bonded to the connecting elements. A spring section is defined as any area that allows elastic deformation. The spring section is preferably arranged between the connection section and the measuring section. The spring section is preferably bonded to the connection section and/or measuring section. The advantage of the invention lies in the fact that an electrical conductor is created which, due to the at least one spring area, has a higher elastic deformability in the face of forces acting on the electrical conductor from the outside. Preferably, the spring section extends over the entire width of the electrical conductor. This has the advantage that the spring section can be easily attached to the connection section and/or measuring section. Furthermore, the spring section can only extend over one connection segment of the electrical conductor. This has the advantage that a more cost-effective electrical conductor can be manufactured. The spring section can preferably be substantially rectangular. The spring section is preferably designed in a cuboid shape. The plates are preferably arranged with their surfaces against each other. This has the advantage that a simple and cost-effective spring section can be manufactured. Furthermore, the at least two spring sections can be arranged symmetrically with respect to the measuring range. This has the advantage that the electrical conductor in both connection sections can undergo elastic deformation due to an externally acting force. Preferably, the plates have the same thickness. This has the advantage that a uniform elastic deformation of the electrical conductor can be achieved. Preferably, the measuring section has a slot. The slot is preferably punched or milled from the electrical conductor. The slot is preferably positioned on the electrical conductor such that it forms an axis of symmetry. This has the advantage that it allows the measurement of low electrical currents. Furthermore, a current sensor with an electrical conductor is proposed, wherein the current sensor comprises a printed circuit board and