Battery terminal lug equipped with shunt for measuring battery current

Patent metadata

Field	Value
Publication number	US-8932086-B2
Application number	US-201013381798-A
Country	US
Kind code	B2
Filing date	Jun 28, 2010
Priority date	Jul 2, 2009
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

A battery terminal lug ( 1 ) is disclosed, the lug being equipped with a shunt ( 7 ) for measuring the battery current and other battery characteristics. The lug includes a support ( 8 ), such as for a printed circuit, of at least one electronic component. The lug is made up of a first part ( 2 ), which is configured to be secured to a terminal of the battery, and a second part, which is configured to be secured to the cable of the battery (which is ordinarily directly associated with the terminal of the battery). The two parts ( 2, 3 ) of the terminal lug are electrically insulated from one another and are provided with projecting portions ( 28, 38 ) to bear the shunt ( 7 ), and a casing ( 5, 6 ) to accommodate the shunt ( 7 ) and the support ( 8 ), wherein electrical insulation ( 4, 17 ) is positioned so as to intervene between the two parts ( 2, 3 ) of the terminal lug ( 1 ).

First claim

The invention claimed is:

1. A battery terminal lug ( 1 ) equipped with a shunt ( 7 ) for measuring a battery current and a support ( 8 ) of at least one electronic component, comprising:
a first terminal lug part ( 2 ) configured to be secured to a terminal of a battery;
a second terminal lug part ( 3 ) configured to be secured to a cable of the battery which is associated with the terminal of the battery;
the first and second terminal lug parts ( 2 , 3 ) being distinct from one another and are provided with elongated projecting portions ( 28 , 38 ) to bear the shunt ( 7 ) and a casing ( 5 , 6 ) configured to accommodate the shunt ( 7 ) and the support ( 8 ), and
an electrical insulation ( 4 , 17 ) intervening between the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the battery terminal lug ( 1 );
the casing ( 5 , 6 ) having a lateral opening ( 55 ) in which the elongated projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug penetrate;
the projecting portions ( 28 , 38 ) of the first and second parts extending next to each other.

2. The battery terminal lug according to claim 1 , wherein the casing ( 5 , 6 ) is provided with means for positioning the support ( 8 ) mechanically, and with means for mechanical support for the support ( 8 ).

3. The battery terminal lug according to claim 1 , wherein the projecting portions ( 28 , 38 ) of the first and second parts extend generally in the same direction.

4. The battery terminal lug according to claim 3 , wherein the casing ( 5 , 6 ) is filled with resin for securing of the casing ( 5 , 6 ) to the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug ( 1 ) and for protection of the at least one electronic component fitted in the casing.

5. The battery terminal lug according to claim 4 , wherein the first part ( 2 ) has a protuberance ( 27 ) with a first assembly lug ( 26 ) for assembly of the second part ( 3 ) to the first part ( 2 ), wherein the second part ( 3 ) has a second assembly lug ( 36 ) for assembly to the first assembly lug ( 26 ), wherein the projecting portion ( 28 ) of the first part ( 2 ) extends from the first assembly lug ( 26 ), and wherein the projecting portion ( 38 ) of the second part ( 3 ) extends from the second assembly lug ( 36 ).

6. The battery terminal lug according to claim 5 , wherein the first assembly lug ( 26 ) and the second assembly lug ( 36 ) are perforated for the passage of assembly means ( 14 ) between the first and second assembly lugs ( 26 , 36 ), and wherein the assembly means ( 14 ) comprises the electrical insulation ( 4 , 17 ).

7. A battery terminal lug ( 1 ) equipped with a shunt ( 7 ) for measuring a battery current and a support ( 8 ) of at least one electronic component, comprising:
a first terminal lug part ( 2 ) configured to be secured to a terminal of a battery;
a second terminal lug part ( 3 ) configured to be secured to a cable of the battery which is associated with the terminal of the battery;
the first and second terminal lug parts ( 2 , 3 ) being distinct from one another and are provided with projecting portions ( 28 , 38 ) to bear the shunt ( 7 ) and a casing ( 5 , 6 ) to accommodate the shunt ( 7 ) and the support ( 8 ), and
an electrical insulation ( 4 , 17 ) intervening between the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the battery terminal lug ( 1 );
the casing ( 5 , 6 ) having a lateral opening ( 55 ) into which the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug penetrate;
the projecting portions ( 28 , 38 ) of the first and second parts extending generally next to each other;
the casing ( 5 , 6 ) filled with resin for securing of the casing ( 5 , 6 ) to the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug ( 1 ) and for protection of the at least one electronic component fitted in the casing;
the first part ( 2 ) having a protuberance ( 27 ) with a first assembly lug ( 26 ) for assembly of the second part ( 3 ) to the first part ( 2 );
the second part ( 3 ) having a second assembly lug ( 36 ) for assembly to the first assembly lug ( 26 );
the projecting portion ( 28 ) of the first part ( 2 ) extending from the first assembly lug ( 26 ), and the projecting portion ( 38 ) of the second part ( 3 ) extending from the second assembly lug ( 36 );
the first assembly lug ( 26 ) and the second assembly lug ( 36 ) perforated for the passage of assembly means ( 14 ) between the first and second assembly lugs ( 26 , 36 );
the assembly means ( 14 ) comprising the electrical insulation ( 4 , 17 );
the electrical insulation ( 4 , 17 ) comprising an electrically insulating brace ( 4 );
the assembly means ( 14 ) secured to the first assembly lug ( 26 );
the assembly means ( 14 ) also comprising a bolt ( 15 ) passing through a hole ( 126 ) in the first assembly lug with interposition of the electrically insulating brace ( 4 ) in order to insulate the assembly means ( 14 ) relative to the first assembly lug ( 26 ).

8. The battery terminal lug according to claim 7 , wherein the bolt ( 15 ) has two threaded parts which pass respectively through the hole ( 126 ) in the first assembly lug ( 26 ) and a hole ( 136 ) in the second assembly lug ( 36 ), wherein the bolt ( 15 ) comprises a clamping part ( 18 ) between the two threaded parts, wherein the clamping part ( 18 ) is interposed between the two assembly lugs ( 26 , 36 ) and is fitted in a cavity ( 43 ) in the brace ( 4 ), wherein a height of the clamping part ( 18 ) is greater than a height of the brace ( 4 ), wherein a base of the cavity ( 43 ) is extended by a sleeve ( 42 ) which is engaged in the hole ( 126 ) in the first assembly lug, and wherein one of the threaded parts of the bolt ( 15 ) passes through the sleeve ( 42 ).

9. The battery terminal lug according to claim 8 , further comprising means for blocking rotation between the brace ( 4 ) and at least one of the assembly lugs ( 26 , 36 ).

10. A battery terminal lug ( 1 ) equipped with a shunt ( 7 ) for measuring a battery current and a support ( 8 ) of at least one electronic component, comprising:
a first terminal lug part ( 2 ) configured to be secured to a terminal of a battery;
a second terminal lug part ( 3 ) configured to be secured to a cable of the battery which is associated with the terminal of the battery;
the first and second terminal lug parts ( 2 , 3 ) being distinct from one another and are provided with projecting portions ( 28 , 38 ) to bear the shunt ( 7 ) and a casing ( 5 , 6 ) to accommodate the shunt ( 7 ) and the support ( 8 ), and
an electrical insulation ( 4 , 17 ) intervening between the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the battery terminal lug ( 1 );
the casing ( 5 , 6 ) having a lateral opening ( 55 ) into which the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug penetrate;
the projecting portions ( 28 , 38 ) of the first and second parts extending generally next to each other;
the casing ( 5 , 6 ) filled with resin for securing of the casing ( 5 , 6 ) to the projecting portions ( 28 , 38 ) of the first and second parts ( 2 , 3 ) of the terminal lug ( 1 ) and for protection of the at least one electronic component fitted in the casing;
the first part ( 2 ) having a protuberance ( 27 ) with a first assembly lug ( 26 ) for assembly of the second part ( 3 ) to the first part ( 2 );
the second part ( 3 ) having a second assembly lug ( 36 ) for assembly to the first assembly lug ( 26 );
the projecting portion

Assignees

• Thimon Alain
• Gravat Denis
• Perard Sébastien
• Bogaert Nicolas
• Ryckebusch Emmanuel
• Monteil Christophe
• Gervais Hugues
• Valeo Equip Electr Moteur

Inventors

• Thimon Alain
• Gravat Denis
• Perard Sébastien
• Bogaert Nicolas
• Ryckebusch Emmanuel
• Monteil Christophe
• Gervais Hugues

Classifications

• H01M50/569

  Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364) · CPC title

• H01M50/296

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title

• H01M10/48 Primary

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01R11/284

  comprising means for preventing corrosion, e.g. covers, enclosures filled with gel · CPC title

• H01R11/281

  for connections to batteries · CPC title