SHUNT RESISTOR WITH MEASUREMENT CIRCUIT

• US 20090224768A1
• Filed: 03/10/2009
• Published: 09/10/2009
• Est. Priority Date: 03/10/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: DOLLANSKY, Matthias, Hellwig, Roland
• Application Number:
  US12/401,224
• Publication Number:
  US 20090224768A1
• Time in Patent Office: Days
• US Class Current: 324/426
• CPC Class Codes: G01R 1/203 Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts resistors in general H01C; microwave or radiowave terminations H01P1/26; coupling devices H01R
• CPC Class Codes: G01R 31/006 on road vehicles, e.g. automobiles or trucks testing of ignition installations peculiar to internal combustion engines F02P17/00
• CPC Class Codes: G01R 31/3644 Constructional arrangements
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 2201/10022 Non-printed resistor
• CPC Class Codes: H05K 2201/10318 Surface mounted metallic pins
• CPC Class Codes: H05K 2201/10515 Stacked components
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A shunt resistor with a measurement circuit, retained on the shunt resistor, on a printed circuit board is proposed, in which separate spacers, by way of which the measurement circuit can be put in electrical and mechanical contact with the shunt resistor, are disposed between the printed circuit board of the measurement circuit and the shunt resistor. The printed circuit board of the measurement circuit can be connected in material-locking fashion to the spacers, and the printed circuit board with the spacers can then be mounted by means of material-locking connections on the shunt resistor via the spacers, and the length, position and number of the spacers are dimensioned such that assembly of the printed circuit board with components of predetermined dimensions can be done on the side of the printed circuit board facing toward the shunt resistor.

Claims

1. A shunt resistor having a measurement circuit, retained on the shunt resistor by means of a printed circuit board, at least two spacers provided, by way of which the measurement circuit can be put in electrical and mechanical contact with the shunt resistor, wherein the spacers are disposed between the printed circuit board of the measurement circuit and the shunt resistor.

2. The shunt resistor as defined by claim 1, wherein the printed circuit board of the measurement circuit is provided with the spacers in material-locking fashion, and the printed circuit board with the spacers can be mounted on the shunt resistor by means of material-locking, connections.

3. The shunt resistor as defined by claim 1, wherein length, position and number of spacers are dimensioned such that assembly the printed circuit board with components of predetermined dimensions can be performed on a side of the printed circuit board facing toward the shunt resistor.

4. The shunt resistor as defined by claim 2, wherein length, position and number of spacers are dimensioned such that assembly the printed circuit board with components of predetermined dimensions can be performed on a side of the printed circuit board facing toward the shunt resistor.

5. The shunt resistor as defined by claim 1, wherein for detecting electrical status variables of a battery of a motor vehicle from a load current of the battery, the measurement circuit is connected to the shunt resistor, disposed in a region of a pole terminal of the battery, via the spacers and optionally via further terminal contacts;

and wherein a connection of the measurement circuit to an energy management system of the motor vehicle is effected via a LIN bus.

6. The shunt resistor as defined by claim 2, wherein for detecting electrical status variables of a battery of a motor vehicle from a load current of the battery, the measurement circuit is connected to the shunt resistor, disposed in a region of a pole terminal of the battery, via the spacers and optionally via further terminal contacts;

and wherein a connection of the measurement circuit to an energy management system of the motor vehicle is effected via a LIN bus.

7. The shunt resistor as defined by claim 3, wherein for detecting electrical status variables of a battery of a motor vehicle from a load current of the battery, the measurement circuit is connected to the shunt resistor, disposed in a region of a pole terminal of the battery, via the spacers and optionally via further terminal contacts;

and wherein a connection of the measurement circuit to an energy management system of the motor vehicle is effected via a LIN bus.

8. The shunt resistor as defined by claim 4, wherein for detecting electrical status variables of a battery of a motor vehicle from a load current of the battery, the measurement circuit is connected to the shunt resistor, disposed in a region of a pole terminal of the battery, via the spacers and optionally via further terminal contacts;

and wherein a connection of the measurement circuit to an energy management system of the motor vehicle is effected via a LIN bus.

9. The shunt resistor as defined by claim 2, wherein the material-locking connections of the measurement circuit to the shunt resistor via the spacers are produced by means of a PCB assembly machine using reflow technology.

10. The shunt resistor as defined by claim 4, wherein the material-locking connections of the measurement circuit to the shunt resistor via the spacers are produced by means of a PCB assembly machine using reflow technology.

11. The shunt resistor as defined by claim 6, wherein the material-locking connections of the measurement circuit to the shunt resistor via the spacers are produced by means of a PCB assembly machine using reflow technology.

12. The shunt resistor as defined by claim 8, wherein the material-locking connections of the measurement circuit to the shunt resistor via the spacers are produced by means of a PCB assembly machine using reflow technology.