WO2020011363A1 - Electric sensor assembly comprising a shunt resistance element - Google Patents
Electric sensor assembly comprising a shunt resistance element Download PDFInfo
- Publication number
- WO2020011363A1 WO2020011363A1 PCT/EP2018/068982 EP2018068982W WO2020011363A1 WO 2020011363 A1 WO2020011363 A1 WO 2020011363A1 EP 2018068982 W EP2018068982 W EP 2018068982W WO 2020011363 A1 WO2020011363 A1 WO 2020011363A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shunt
- resistance element
- sensor assembly
- conducting member
- terminal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/364—Battery terminal connectors with integrated measuring arrangements
Definitions
- Electric sensor assembly comprising a shunt resistance element
- the present invention relates to an electric sensor assembly according to the pream- ble of claim 1 , to a battery management system according to the preamble of claim 9 and to a motor vehicle according to the preamble of claim 10.
- a hybrid current sensor assembly which has a conductor, a Hall core, a Hall sensor, a shunt terminal and a microprocessor.
- the con- ductor has a first terminating end, a second terminating end and a shunt resistance formed as an integral part of the conductor.
- the Hall core generates a magnetic field from current flow in the conductor.
- the Hall sensor measures a potential difference between the first terminating end and the second terminating end of the conductor based on the magnetic field applied to the Hall core.
- a shunt terminal of the shunt namely the shunt resistance, is positioned on a central portion of the conductor.
- the microprocessor is connected to the shunt terminal to measure the current flow in the conductor.
- an electric sensor assembly comprising: a shunt resistance element with a first conducting member mechanically and electrically connected to a first side of said shunt resistance element and a second conducting member mechanically and electrically connected to a second side of said shunt resistance element, whereat said second side of said shunt resistance element with said second conducting member is positioned opposite to said first side of said shunt resistance element with said first conducting member, a measurement unit for measuring an electric current flowing through said shunt resistance element and/or an electric voltage between said first side and said second side of said shunt resistance element, whereat said measure- ment unit is mechanically and electrically connected to said first conducting member with at least one first shunt terminal and to said second conducting member with at least one second shunt terminal.
- an electric sensor assembly according to claim 1 , wherein said shunt resistance element is made from a different material compared to said first and second conducting members and said at least one first shunt terminal is mechani- cally and electrically connected to said first conducting member and said at least one second shunt terminal is mechanically and electrically connected to said second con- ducting member via ultrasonic welding. Furthermore, this object is solved by a battery management system for a motor vehicle comprising an electric sensor assembly ac- cording to claim 9 and a motor vehicle with a battery management system according to claim 10.
- a main advantage of the electric sensor assembly according to claim 1 , a battery man- agement system according to claim 9 and a motor vehicle according to claim 10 is, that the accuracy of measurement of the electric current flowing through said shunt re- sistance element and/or of the electric voltage between said first side and said second side of said shunt resistance element is enhanced.
- said shunt resistance element compared to said first and second conducting members and that said at least one first shunt terminal is mechanically and electrically con- nected to said first conducting member and that said at least one second shunt termi- nal is mechanically and electrically connected to said second conducting member via ultrasonic welding it is possible to reduce the distances of said at least one first shunt terminal and of said at least one second shunt terminal from said shunt resistance ele- ment, while said at least one first shunt terminal and said at least one second shunt terminal are mechanically and electrically connected to said first and said second con- ducting member in a firm and stable manner.
- a particular advantageous development of the electric sensor assembly according to the invention is, that said at least one first shunt terminal and said at least one second shunt terminal are each positioned directly adjacent to said shunt resistance element. That way, the electrical resistances of said first conducting member and said second conducting member can be minimized.
- the design of said at least one first and said at least one second shunt termi- nal can be of any useful and applicable type, material, dimension, shape and arrange- ment.
- said at least one first shunt terminal and said at least one sec- ond shunt terminal are each built as a part of a common frame element until the end of said ultrasonic welding of said at least one first shunt terminal and said at least one second shunt terminal.
- the handling of said at least one first and said at least one second shunt terminal is simplified.
- said ultrasonic welding of said at least one first and said at least one second shunt terminal can be done much easier.
- said at least one first shunt terminal and said at least one second shunt terminal are each built as separable parts of said common frame element. That way, the electrical insu- lation of said at least one first shunt terminal from said at least one second shunt ter- minal can be achieved quite easily.
- said at least one first shunt terminal and said at least one second shunt terminal are electrically in- sulated from each other by using a common frame element comprising electrical insu- lating material.
- a common frame element comprising electrical insu- lating material.
- a particular advantageous development of the electric sensor assembly according to the embodiment last mentioned is, that said separable parts are built via chipless forming.
- chipless forming could be scrap-free blanking or shearing.
- said shunt resistance element can be of any useful and applicable type, material, dimension, shape and arrangement.
- said shunt resistance element shows substantially the same electrical resistance over all possible tempera- tures under working conditions of the electric sensor assembly.
- the material of said shunt resistance element shows substantially the same electrical resistance over all possible temperatures under the working conditions of the shunt resistance ele- ment.
- the material of said shunt resistance element does have a high temperature stability. That way, the accuracy of measurement of the electric current flowing through said shunt resistance element and/or the electric voltage between said first side and said second side of said shunt resistance element can further be enhanced.
- said first conducting member and said second conducting member are each made from a material not showing substantially the same electrical re- sistance over all possible temperatures under working conditions of the electric sensor assembly.
- the electric sensor assembly can be realized with less cost. Materi- als with a high temperature stability are quite expensive.
- a further advantageous development of the electric sensor assembly according to the invention is, that said at least one first shunt terminal and said at least one second shunt terminal sum up to at least three shunt terminals in total. That way, the mechani- cal stability of the electric sensor assembly according to the invention can be im- proved.
- the Figures are schematic illustrations of examples of electric sensor assemblies ac- cording to the present invention.
- the electric sensor assemblies each are used for a battery management system of a motor vehicle. Only the details necessary for the un- derstanding of the invention are shown.
- Fig. 1 a perspective drawing of a first embodiment of an electric sensor assembly according to the invention in a partial view
- Fig. 2 a perspective drawing of a second embodiment of an electric sensor assem- bly according to the invention in a partial view.
- Fig. 1 displays a first embodiment of an electric sensor assembly according to the in- vention.
- the electric sensor assembly comprises a shunt resistance element 2 with a first conducting member 4 mechanically and electrically connected to a first side 2.1 of said shunt resistance element 2 and a second conducting member 6 mechanically and electrically connected to a second side 2.2 of said shunt resistance element 2.
- Said second side 2.2 of said shunt resistance element 2 with said second conducting mem- ber 6 is positioned opposite to said first side 2.1 of said shunt resistance element 2 with said first conducting member 4.
- Said shunt resistance element 2 is made from an alloy comprising copper, nickel and manganese. Such alloys are especially suitable for measuring electric current and/or electric voltage.
- Said shunt resistance element 2 shows substantially the same electrical resistance over all possible temperatures un- der the working conditions of the electric sensor assembly and therefore of said shunt resistance element 2.
- Said first conducting member 4 and said second conducting member 6 are made from a copper-based material, which is especially suitable for welding action. Furthermore, said first conducting member 4 and said second conducting member 6 are each made from a material not showing substantially the same electrical resistance over all possi- ble temperatures under the working conditions of the electric sensor assembly and therefore of said shunt resistance element 2. The material used for said first and said second conducting member 4, 6 is much cheaper than the material used for said shunt resistance element 2. Said first conducting member 4 and said second conduct- ing member 6 each are joint together with said shunt resistance element 2 via elec- tronic beam welding.
- the electric sensor assembly of the first embodiment comprises a meas- urement unit for measuring an electric current flowing through said shunt resistance element 2 and/or an electric voltage between said first side 2.1 and said second side 2.2 of said shunt resistance element 2, whereat said measurement unit is mechani- cally and electrically connected to said first conducting member 4 with two first shunt terminals 8 and to said second conducting member 6 with two second shunt terminals 10.
- Said measurement unit comprises a microprocessor and is built as already known from the state of the art. Said measurement unit is not displayed in Fig. 1.
- Said first shunt terminals 8 and said second shunt terminals 10 are each built as a part of a common frame element 12 until the end of an ultrasonic welding action mechani- cally and electrically connecting said common frame element 12 with said two first shunt terminals 8 and said two second shunt terminals 10 to said first and second con- ducting members 4, 6.
- said first shunt terminals 8 and said second shunt termi- nals 10 are built as separable parts of said common frame element 12.
- said common frame element 12 is separated into two parts, namely in a first part 12.1 with said two first shunt terminals 8 and in a second part 12.2 with said two second shunt terminals 10. This is achieved by a shearing process. That way, de- bris which could affect the function of the electric sensor assembly according to the first embodiment are avoided.
- Said separable parts, namely said first part 12.1 and said second part 12.2 of said common frame element 12, are built via chipless forrn- ing.
- said first part 12.1 of said common frame element 12 with said first shunt terminals 8 is positioned directly adjacent to said shunt resistance ele- ment 2, namely said first side 2.1 of said shunt resistance element 2.
- said second part 12.2 of said common frame element 12 with said second shunt terminals 10 which is also positioned directly adjacent to said shunt resistance ele- ment 2, namely said second side 2.2 of said shunt resistance element 2.
- Free ends 8.1 of said first shunt terminals 8 and free ends 10.1 of said second shunt terminals 10 are designed for soldering said first and second shunt terminals 8, 10 to said meas- urement unit mentioned before.
- Said microprocessor of said measurement unit is elec- trically connected to said first and second shunt terminals 8, 10 in order to measure an electric current flowing through said shunt resistance element 2 and/or an electric volt- age between said first side 2.1 and said second side 2.2 of said shunt resistance ele- ment 2.
- the electric sensor assembly according to the first embodiment displayed in part in Fig. 1 is belonging to a battery management system for a motor vehicle.
- the battery management system and the motor vehicle are not shown.
- the function of the electric sensor assembly and the battery management system the electric sensor assembly is integrated in is already known from the state of the art.
- Fig. 2 a second embodiment of an electric sensor assembly according to the inven- tion is displayed.
- the second embodiment corn- pared to the first embodiment according to Fig. 1 are discussed. Similar or equal parts are labelled with the same reference numbers in the Fig. 1 and 2.
- the second embodiment according to Fig. 2 does have different first shunt terminals 8 and different second shunt terminals 10.
- the free ends 8.1 , 10.1 of said first and second shunt terminals 8, 10 are each de- signed as press-in contacts. Thus, no soldering is needed.
- said separable parts, namely said first part 12.1 of said common frame element 12 with said first shunt terminals 8 and said second part 12.2 of said common frame element 12 with said second shunt terminals 10, of the second embodiment are separated after said ultrasonic welding of said common frame element 12 via scrap-free blanking. Thus, debris which could affect the function of the electric sensor assembly according to the second embodiment are avoided, too.
- the invention is not limited to the exemplary embodiments discussed above.
- the electric sensor assembly according to the invention can be of any useful and ap- plicable type, material, dimension, shape and arrangement. Thus, the electric sensor assembly does not have to be integrated into a battery management system, but can be used for a lot of different applications. Furthermore, the invention is not limited to the field of motor vehicles.
- the electric sensor assembly can be used for measuring an electric current flow and an electric voltage, but it can be limited to measure only an electric current flow or only an electric voltage. It can be used for measuring other electric variables, too.
- the electric variables like electric current flow or electric voltage can be measured directly or indirectly. Any other useful and suitable number of at least one first shunt terminal and at least one second shunt terminal is also possible.
- the methods of chipless forming are only exemplary, too.
- said at least one first shunt terminal and said at least one second shunt terminal are electrically insulated from each other by using a common frame element comprising electrical insulating material.
Abstract
The invention relates to an electric sensor assembly comprising a shunt resistance element (2) with a first conducting member (4) and a second conducting member (6) connected to said shunt resistance element (2), a measurement unit for measuring an electric current flowing through said shunt resistance element (2) and/or an electric voltage between a first side (2.1 ) and a second side (2.2) of said shunt resistance element (2), whereat said measurement unit is mechanically and electrically connected to said first conducting member (4) with at least one first shunt terminal (8) and to said second conducting member (6) with at least one second shunt terminal (10). In order to enhance the quality of measurement of the electric current flowing through said shunt resistance element (2) and/or of the electric voltage between said first side (2.1) and said second side (2.2) of said shunt resistance element (2), said shunt resistance element (2) is made from a different material compared to said first and second conducting members (4, 6) and said at least one first shunt terminal (8) is mechanically and electrically connected to said first conducting member (4) and said at least one second shunt terminal (10) is mechanically and electrically connected to said second conducting member (6) via ultrasonic welding. Furthermore, the invention relates to a battery management system and a motor vehicle.
Description
Electric sensor assembly comprising a shunt resistance element
Description
The present invention relates to an electric sensor assembly according to the pream- ble of claim 1 , to a battery management system according to the preamble of claim 9 and to a motor vehicle according to the preamble of claim 10.
Such electric sensor assemblies, battery management systems and motor vehicles are already known in different embodiments.
From the US 9,746,499 B2 a hybrid current sensor assembly is known, which has a conductor, a Hall core, a Hall sensor, a shunt terminal and a microprocessor. The con- ductor has a first terminating end, a second terminating end and a shunt resistance formed as an integral part of the conductor. The Hall core generates a magnetic field from current flow in the conductor. The Hall sensor measures a potential difference between the first terminating end and the second terminating end of the conductor based on the magnetic field applied to the Hall core. A shunt terminal of the shunt, namely the shunt resistance, is positioned on a central portion of the conductor. The microprocessor is connected to the shunt terminal to measure the current flow in the conductor.
Thus, an electric sensor assembly is known, comprising: a shunt resistance element with a first conducting member mechanically and electrically connected to a first side of said shunt resistance element and a second conducting member mechanically and electrically connected to a second side of said shunt resistance element, whereat said second side of said shunt resistance element with said second conducting member is positioned opposite to said first side of said shunt resistance element with said first conducting member, a measurement unit for measuring an electric current flowing through said shunt resistance element and/or an electric voltage between said first side and said second side of said shunt resistance element, whereat said measure- ment unit is mechanically and electrically connected to said first conducting member
with at least one first shunt terminal and to said second conducting member with at least one second shunt terminal.
It is an object of the invention to enhance the quality of measurement of the electric current flowing through said shunt resistance element and/or of the electric voltage be- tween said first side and said second side of said shunt resistance element.
This object is solved by an electric sensor assembly according to claim 1 , wherein said shunt resistance element is made from a different material compared to said first and second conducting members and said at least one first shunt terminal is mechani- cally and electrically connected to said first conducting member and said at least one second shunt terminal is mechanically and electrically connected to said second con- ducting member via ultrasonic welding. Furthermore, this object is solved by a battery management system for a motor vehicle comprising an electric sensor assembly ac- cording to claim 9 and a motor vehicle with a battery management system according to claim 10.
A main advantage of the electric sensor assembly according to claim 1 , a battery man- agement system according to claim 9 and a motor vehicle according to claim 10 is, that the accuracy of measurement of the electric current flowing through said shunt re- sistance element and/or of the electric voltage between said first side and said second side of said shunt resistance element is enhanced. Because of the different material of said shunt resistance element compared to said first and second conducting members and that said at least one first shunt terminal is mechanically and electrically con- nected to said first conducting member and that said at least one second shunt termi- nal is mechanically and electrically connected to said second conducting member via ultrasonic welding it is possible to reduce the distances of said at least one first shunt terminal and of said at least one second shunt terminal from said shunt resistance ele- ment, while said at least one first shunt terminal and said at least one second shunt terminal are mechanically and electrically connected to said first and said second con- ducting member in a firm and stable manner.
By using ultrasonic welding for mechanically and electrically connecting said at least one first shunt terminal to said first conducting member and said at least one second shunt terminal to said second conducting member much less heat is generated in the welding zones compared to e.g. laser welding. Instead of soldering, there are no de- bris which might affect the function of the electric sensor assembly, a battery manage- ment system with the electric sensor assembly or a motor vehicle with such a battery management system. Because of the different materials of said first and said second conducting member compared to said shunt resistance element the electric sensor as- sembly, the battery management system and the motor vehicle according to the inven- tion can be realized in a cost-saving manner. Furthermore, said first and said second conducting member can be tailored to the needs of its function. The same is true for the shunt resistance element.
A particular advantageous development of the electric sensor assembly according to the invention is, that said at least one first shunt terminal and said at least one second shunt terminal are each positioned directly adjacent to said shunt resistance element. That way, the electrical resistances of said first conducting member and said second conducting member can be minimized.
Basically, the design of said at least one first and said at least one second shunt termi- nal can be of any useful and applicable type, material, dimension, shape and arrange- ment. Advantageously, said at least one first shunt terminal and said at least one sec- ond shunt terminal are each built as a part of a common frame element until the end of said ultrasonic welding of said at least one first shunt terminal and said at least one second shunt terminal. Hereby, the handling of said at least one first and said at least one second shunt terminal is simplified. Furthermore, because of said common frame element said ultrasonic welding of said at least one first and said at least one second shunt terminal can be done much easier.
An advantageous development of the aforementioned embodiment is, that said at least one first shunt terminal and said at least one second shunt terminal are each
built as separable parts of said common frame element. That way, the electrical insu- lation of said at least one first shunt terminal from said at least one second shunt ter- minal can be achieved quite easily. Of course, it would be possible, that said at least one first shunt terminal and said at least one second shunt terminal are electrically in- sulated from each other by using a common frame element comprising electrical insu- lating material. Furthermore, by using a common frame element the positioning of said at least one first shunt terminal and said at least one second shunt terminal to each other can be improved. Thus, tolerances can be reduced significantly.
A particular advantageous development of the electric sensor assembly according to the embodiment last mentioned is, that said separable parts are built via chipless forming. For example, chipless forming could be scrap-free blanking or shearing. Flereby, there are no debris, namely parts of said common frame of said at least one first shunt terminal and said at least one second shunt terminal, which might affect the function of the electric sensor assembly.
In general, said shunt resistance element can be of any useful and applicable type, material, dimension, shape and arrangement. Advantageously, said shunt resistance element shows substantially the same electrical resistance over all possible tempera- tures under working conditions of the electric sensor assembly. Thus, the material of said shunt resistance element shows substantially the same electrical resistance over all possible temperatures under the working conditions of the shunt resistance ele- ment. The material of said shunt resistance element does have a high temperature stability. That way, the accuracy of measurement of the electric current flowing through said shunt resistance element and/or the electric voltage between said first side and said second side of said shunt resistance element can further be enhanced.
Another advantageous development of the electric sensor assembly according to the invention is, that said first conducting member and said second conducting member are each made from a material not showing substantially the same electrical re- sistance over all possible temperatures under working conditions of the electric sensor
assembly. Hereby, the electric sensor assembly can be realized with less cost. Materi- als with a high temperature stability are quite expensive.
A further advantageous development of the electric sensor assembly according to the invention is, that said at least one first shunt terminal and said at least one second shunt terminal sum up to at least three shunt terminals in total. That way, the mechani- cal stability of the electric sensor assembly according to the invention can be im- proved.
The Figures are schematic illustrations of examples of electric sensor assemblies ac- cording to the present invention. The electric sensor assemblies each are used for a battery management system of a motor vehicle. Only the details necessary for the un- derstanding of the invention are shown.
It is shown by:
Fig. 1 a perspective drawing of a first embodiment of an electric sensor assembly according to the invention in a partial view and
Fig. 2 a perspective drawing of a second embodiment of an electric sensor assem- bly according to the invention in a partial view.
Fig. 1 displays a first embodiment of an electric sensor assembly according to the in- vention. The electric sensor assembly comprises a shunt resistance element 2 with a first conducting member 4 mechanically and electrically connected to a first side 2.1 of said shunt resistance element 2 and a second conducting member 6 mechanically and electrically connected to a second side 2.2 of said shunt resistance element 2. Said second side 2.2 of said shunt resistance element 2 with said second conducting mem- ber 6 is positioned opposite to said first side 2.1 of said shunt resistance element 2 with said first conducting member 4. Said shunt resistance element 2 is made from an alloy comprising copper, nickel and manganese. Such alloys are especially suitable for measuring electric current and/or electric voltage. Said shunt resistance element 2
shows substantially the same electrical resistance over all possible temperatures un- der the working conditions of the electric sensor assembly and therefore of said shunt resistance element 2.
Said first conducting member 4 and said second conducting member 6 are made from a copper-based material, which is especially suitable for welding action. Furthermore, said first conducting member 4 and said second conducting member 6 are each made from a material not showing substantially the same electrical resistance over all possi- ble temperatures under the working conditions of the electric sensor assembly and therefore of said shunt resistance element 2. The material used for said first and said second conducting member 4, 6 is much cheaper than the material used for said shunt resistance element 2. Said first conducting member 4 and said second conduct- ing member 6 each are joint together with said shunt resistance element 2 via elec- tronic beam welding.
Furthermore, the electric sensor assembly of the first embodiment comprises a meas- urement unit for measuring an electric current flowing through said shunt resistance element 2 and/or an electric voltage between said first side 2.1 and said second side 2.2 of said shunt resistance element 2, whereat said measurement unit is mechani- cally and electrically connected to said first conducting member 4 with two first shunt terminals 8 and to said second conducting member 6 with two second shunt terminals 10. Said measurement unit comprises a microprocessor and is built as already known from the state of the art. Said measurement unit is not displayed in Fig. 1.
Said first shunt terminals 8 and said second shunt terminals 10 are each built as a part of a common frame element 12 until the end of an ultrasonic welding action mechani- cally and electrically connecting said common frame element 12 with said two first shunt terminals 8 and said two second shunt terminals 10 to said first and second con- ducting members 4, 6. Thus, said first shunt terminals 8 and said second shunt termi- nals 10 are built as separable parts of said common frame element 12. After said ul- trasonic welding of said common frame element 12 to said first and second conducting member 4, 6 said common frame element 12 is separated into two parts, namely in a
first part 12.1 with said two first shunt terminals 8 and in a second part 12.2 with said two second shunt terminals 10. This is achieved by a shearing process. That way, de- bris which could affect the function of the electric sensor assembly according to the first embodiment are avoided. Said separable parts, namely said first part 12.1 and said second part 12.2 of said common frame element 12, are built via chipless forrn- ing.
As can be seen from Fig. 1 , said first part 12.1 of said common frame element 12 with said first shunt terminals 8 is positioned directly adjacent to said shunt resistance ele- ment 2, namely said first side 2.1 of said shunt resistance element 2. The same is true for said second part 12.2 of said common frame element 12 with said second shunt terminals 10, which is also positioned directly adjacent to said shunt resistance ele- ment 2, namely said second side 2.2 of said shunt resistance element 2. Free ends 8.1 of said first shunt terminals 8 and free ends 10.1 of said second shunt terminals 10 are designed for soldering said first and second shunt terminals 8, 10 to said meas- urement unit mentioned before. Said microprocessor of said measurement unit is elec- trically connected to said first and second shunt terminals 8, 10 in order to measure an electric current flowing through said shunt resistance element 2 and/or an electric volt- age between said first side 2.1 and said second side 2.2 of said shunt resistance ele- ment 2.
The electric sensor assembly according to the first embodiment displayed in part in Fig. 1 is belonging to a battery management system for a motor vehicle. The battery management system and the motor vehicle are not shown. The function of the electric sensor assembly and the battery management system the electric sensor assembly is integrated in is already known from the state of the art.
In Fig. 2 a second embodiment of an electric sensor assembly according to the inven- tion is displayed. In the following, only the differences of the second embodiment corn- pared to the first embodiment according to Fig. 1 are discussed. Similar or equal parts are labelled with the same reference numbers in the Fig. 1 and 2.
In comparison to the first embodiment, the second embodiment according to Fig. 2 does have different first shunt terminals 8 and different second shunt terminals 10.
The free ends 8.1 , 10.1 of said first and second shunt terminals 8, 10 are each de- signed as press-in contacts. Thus, no soldering is needed. Moreover, said separable parts, namely said first part 12.1 of said common frame element 12 with said first shunt terminals 8 and said second part 12.2 of said common frame element 12 with said second shunt terminals 10, of the second embodiment are separated after said ultrasonic welding of said common frame element 12 via scrap-free blanking. Thus, debris which could affect the function of the electric sensor assembly according to the second embodiment are avoided, too.
The invention is not limited to the exemplary embodiments discussed above.
The electric sensor assembly according to the invention can be of any useful and ap- plicable type, material, dimension, shape and arrangement. Thus, the electric sensor assembly does not have to be integrated into a battery management system, but can be used for a lot of different applications. Furthermore, the invention is not limited to the field of motor vehicles. The electric sensor assembly can be used for measuring an electric current flow and an electric voltage, but it can be limited to measure only an electric current flow or only an electric voltage. It can be used for measuring other electric variables, too. The electric variables like electric current flow or electric voltage can be measured directly or indirectly. Any other useful and suitable number of at least one first shunt terminal and at least one second shunt terminal is also possible. The methods of chipless forming are only exemplary, too.
Of course, it would be possible, that said at least one first shunt terminal and said at least one second shunt terminal are electrically insulated from each other by using a common frame element comprising electrical insulating material.
List of reference numbers
2 Shunt resistance element
2.1 First side of shunt resistance element 2
2.2 Second side of shunt resistance element 2
4 First conducting member
6 Second conducting member
8 First shunt terminal
8.1 Free end of first shunt terminal 8
10 Second shunt terminal
10.1 Free end of second shunt terminal 10
12 Common frame element
12.1 First part of common frame element 12
12.2 Second part of common frame element 12
Claims
1. Electric sensor assembly comprising a shunt resistance element (2) with a first conducting member (4) mechanically and electrically connected to a first side (2.1 ) of said shunt resistance element (2) and a second conducting member (6) mechanically and electrically connected to a second side (2.2) of said shunt resistance element (2), whereat said second side (2.2) of said shunt resistance element (2) with said second conducting member (6) is po- sitioned opposite to said first side (2.1 ) of said shunt resistance element (2) with said first conducting member (4), a measurement unit for measuring an electric current flowing through said shunt resistance element (2) and/or an electric voltage between said first side (2.1 ) and said second side (2.2) of said shunt resistance element (2), whereat said measurement unit is me- chanically and electrically connected to said first conducting member (4) with at least one first shunt terminal (8) and to said second conducting member (6) with at least one second shunt terminal (10),
wherein,
said shunt resistance element (2) is made from a different material compared to said first and second conducting members (4, 6) and said at least one first shunt terminal (8) is mechanically and electrically connected to said first con- ducting member (4) and said at least one second shunt terminal (10) is me- chanically and electrically connected to said second conducting member (6) via ultrasonic welding.
2. Electric sensor assembly according to claim 1 ,
wherein,
said at least one first shunt terminal (8) and said at least one second shunt terminal (10) are each positioned directly adjacent to said shunt resistance element (2).
3. Electric sensor assembly according to claim 1 or 2,
wherein,
said at least one first shunt terminal (8) and said at least one second shunt terminal (10) are each built as a part of a common frame element (12) until the end of said ultrasonic welding of said at least one first shunt terminal (8) and said at least one second shunt terminal (10).
4. Electric sensor assembly according to claim 3,
wherein,
said at least one first shunt terminal (8) and said at least one second shunt terminal (10) are each built as separable parts (12.1 , 12.2) of said common frame element (12).
5. Electric sensor assembly according to claim 4,
wherein,
said separable parts (12.1 , 12.2) are built via chipless forming.
6. Electric sensor assembly according to one of the claims 1 to 5,
wherein,
said shunt resistance element (2) shows substantially the same electrical re- sistance over all possible temperatures under working conditions of the elec- tric sensor assembly.
7. Electric sensor assembly according to one of the claims 1 to 6,
wherein,
said first conducting member (4) and said second conducting member (6) are each made from a material not showing substantially the same electrical resistance over all possible temperatures under working conditions of the electric sensor assembly.
8. Electric sensor assembly according to one of the claims 1 to 7,
wherein,
said at least one first shunt terminal (8) and said at least one second shunt terminal (10) sum up to at least three shunt terminals (8, 10) in total.
9. Battery management system for a motor vehicle comprising an electric sen- sor assembly,
wherein,
said electric sensor assembly is built according to one of the claims 1 to 8.
10. Motor vehicle with a battery management system,
wherein,
said battery management system is built according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2018/068982 WO2020011363A1 (en) | 2018-07-12 | 2018-07-12 | Electric sensor assembly comprising a shunt resistance element |
| DE112018007828.0T DE112018007828T5 (en) | 2018-07-12 | 2018-07-12 | An electrical sensor arrangement comprising a shunt resistance element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2018/068982 WO2020011363A1 (en) | 2018-07-12 | 2018-07-12 | Electric sensor assembly comprising a shunt resistance element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020011363A1 true WO2020011363A1 (en) | 2020-01-16 |
Family
ID=63047307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/068982 WO2020011363A1 (en) | 2018-07-12 | 2018-07-12 | Electric sensor assembly comprising a shunt resistance element |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112018007828T5 (en) |
| WO (1) | WO2020011363A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020207874A1 (en) | 2020-06-24 | 2021-12-30 | Vitesco Technologies GmbH | Resistance measuring element and current measuring circuit with such a resistance measuring element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021205279A1 (en) | 2021-05-25 | 2022-12-01 | Robert Bosch Gesellschaft mit beschränkter Haftung | Current measuring resistor for measuring an electric current |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2114466B1 (en) * | 1971-03-25 | 1972-08-03 | Gossen Gmbh, 8520 Erlangen | SHUTTER RESISTANCE |
| US6181234B1 (en) * | 1999-12-29 | 2001-01-30 | Vishay Dale Electronics, Inc. | Monolithic heat sinking resistor |
| EP1621892A1 (en) * | 2004-07-30 | 2006-02-01 | Hella KGaA Hueck & Co. | Apparatus to Measure an Electrical Current |
| US20070177318A1 (en) * | 2006-01-27 | 2007-08-02 | Oman Todd P | Electronic shunt resistor assembly |
| JP2009244065A (en) * | 2008-03-31 | 2009-10-22 | Furukawa Electric Co Ltd:The | Shunt resistor and terminal fitting method for shunt resistor |
| KR20120057001A (en) * | 2010-11-26 | 2012-06-05 | 현대모비스 주식회사 | Battery sensor for vehicles and making method thereof |
| US20160139209A1 (en) * | 2013-06-20 | 2016-05-19 | Furukawa Electric Co., Ltd. | Battery state detection apparatus and method for manufacturing same |
| DE102015216789A1 (en) * | 2015-09-02 | 2017-03-02 | Continental Automotive Gmbh | Connecting device for connecting a measuring device to a terminal pole of an energy storage device of a motor vehicle |
| US20170212150A1 (en) * | 2013-11-26 | 2017-07-27 | Smart Electronics Inc. | Shunt resistor and shunt resistor assembly |
| US9746499B2 (en) | 2014-04-28 | 2017-08-29 | Tyco Electronics Amp Korea Ltd | Hybrid current sensor assembly |
-
2018
- 2018-07-12 DE DE112018007828.0T patent/DE112018007828T5/en active Pending
- 2018-07-12 WO PCT/EP2018/068982 patent/WO2020011363A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2114466B1 (en) * | 1971-03-25 | 1972-08-03 | Gossen Gmbh, 8520 Erlangen | SHUTTER RESISTANCE |
| US6181234B1 (en) * | 1999-12-29 | 2001-01-30 | Vishay Dale Electronics, Inc. | Monolithic heat sinking resistor |
| EP1621892A1 (en) * | 2004-07-30 | 2006-02-01 | Hella KGaA Hueck & Co. | Apparatus to Measure an Electrical Current |
| US20070177318A1 (en) * | 2006-01-27 | 2007-08-02 | Oman Todd P | Electronic shunt resistor assembly |
| JP2009244065A (en) * | 2008-03-31 | 2009-10-22 | Furukawa Electric Co Ltd:The | Shunt resistor and terminal fitting method for shunt resistor |
| KR20120057001A (en) * | 2010-11-26 | 2012-06-05 | 현대모비스 주식회사 | Battery sensor for vehicles and making method thereof |
| US20160139209A1 (en) * | 2013-06-20 | 2016-05-19 | Furukawa Electric Co., Ltd. | Battery state detection apparatus and method for manufacturing same |
| US20170212150A1 (en) * | 2013-11-26 | 2017-07-27 | Smart Electronics Inc. | Shunt resistor and shunt resistor assembly |
| US9746499B2 (en) | 2014-04-28 | 2017-08-29 | Tyco Electronics Amp Korea Ltd | Hybrid current sensor assembly |
| DE102015216789A1 (en) * | 2015-09-02 | 2017-03-02 | Continental Automotive Gmbh | Connecting device for connecting a measuring device to a terminal pole of an energy storage device of a motor vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020207874A1 (en) | 2020-06-24 | 2021-12-30 | Vitesco Technologies GmbH | Resistance measuring element and current measuring circuit with such a resistance measuring element |
| WO2021259664A3 (en) * | 2020-06-24 | 2022-02-17 | Vitesco Technologies GmbH | Resistance measuring element and current measuring circuit comprising such a resistance measuring element |
| DE102020207874B4 (en) | 2020-06-24 | 2023-11-23 | Vitesco Technologies GmbH | Current measuring circuit with an evaluation unit and a resistance measuring element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112018007828T5 (en) | 2021-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102181276B1 (en) | Current detection device | |
| US7671755B2 (en) | Battery current sensor for a motor vehicle | |
| US9435832B2 (en) | Electronic component, in particular current sensor | |
| US8319499B2 (en) | Coated motor vehicle battery sensor element and method for producing a motor vehicle battery sensor element | |
| US7170295B2 (en) | Resistor arrangement, manufacturing method, and measurement circuit | |
| US20150369877A1 (en) | Integrally formed current sensor device | |
| US8154298B2 (en) | Apparatus for detecting an electrical variable of a rechargeable battery, and method for producing said apparatus | |
| US9442166B2 (en) | Battery monitoring assembly having battery monitor module and cable for connection to a shunt of the module | |
| JP2009266977A (en) | Metal plate resistor | |
| CN111886507A (en) | Integrated current measuring device | |
| WO2020011363A1 (en) | Electric sensor assembly comprising a shunt resistance element | |
| EP2257823B1 (en) | Current measurement apparatus with shunt resistor and heat sink | |
| JP2009216620A (en) | Shunt resistor device | |
| US6728085B2 (en) | Circuit breaker with shunt | |
| WO2017036723A1 (en) | Connection device for connecting a measuring device to a connection pole of an energy store of a motor vehicle | |
| EP3846294A1 (en) | Terminal assembly for a charging connector including an improved thermal monitoring | |
| CN111354522A (en) | Resistor assembly for battery sensor and battery sensor | |
| CN111044918B (en) | Method for producing a resistor arrangement for a battery sensor and resistor arrangement | |
| US8813355B2 (en) | Method for producing a current metering device | |
| CN107923952A (en) | Battery sensor units with high mechanical robustness | |
| JP6400051B2 (en) | Shunt resistance type current detector | |
| CN112805578A (en) | Battery sensor | |
| JP2006234566A (en) | Current density distribution measuring device | |
| EP3872465A1 (en) | Temperature sensor and a method of manufacturing a temperature sensor | |
| CN220894395U (en) | Resistor shunt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18746850 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 18746850 Country of ref document: EP Kind code of ref document: A1 |