Electrical connection between first and second metal parts that are electrically insulated from each other
View Patent ↗An electrical connection ( 1 ) for electrically interconnecting adjacent first and second metal parts ( 2, 3 ) that are electrically insulated from each other, includes clamping elements ( 30 ) together with first and second metal inserts ( 10, 20 ) that are arranged respectively in first and second openings ( 4, 5 ) formed in the first and second metal parts ( 2, 3 ), the first and second inserts ( 10, 20 ) being secured to each other by the clamping elements ( 30 ) so as to be electrically in contact.
1. An electrical connection ( 1 ) for electrically interconnecting first and second adjacent metal parts ( 2 , 3 ) that are electrically insulated from each other, the connection comprising clamping means ( 30 ) together with first and second metal inserts ( 10 , 20 ) arranged respectively in first and second openings ( 4 , 5 ) formed in the first and second metal parts ( 2 , 3 ), at least one insert ( 10 , 20 ) having a projecting periphery ( 11 , 21 ) provided with an outer shoulder ( 12 , 12 ″, 22 , 22 ″) so as to present a guide zone, said first and second inserts ( 10 , 20 ) being secured to each other by said clamping means ( 30 ) so as to be electrically in contact.
2. An electrical connection according to claim 1 , wherein said first insert ( 10 ) is engaged by force in said first metal part ( 2 ).
3. An electrical connection according to claim 1 , wherein said second insert ( 20 ) is engaged by force in said second metal part ( 3 ).
4. An electrical connection according to claim 1 , wherein said first insert ( 10 ) has a first projecting periphery ( 11 ), said first projecting periphery ( 11 ) having a first maximum diameter (D 1 ) greater than a first inside diameter (D 11 ′) of said first opening ( 4 ).
5. An electrical connection according to claim 4 , wherein said first projecting periphery ( 11 ) has a first outer shoulder ( 12 , 12 ″) so as to present a first guide zone having a first minimum diameter equal to the first inside diameter (D 11 ′) of said first opening ( 4 ).
6. An electrical connection according to claim 5 , wherein said first insert ( 10 ) has a first bottom base ( 15 ) and a first top base ( 16 ) that are interconnected by a side wall ( 17 ) presenting symmetry of revolution, said first shoulder ( 12 , 12 ″) being opened to one of said first bottom or top bases ( 15 or 16 ).
7. An electrical connection according to claim 4 , wherein said first projecting periphery ( 11 ) has a plurality of teeth ( 11 ′) that are pressed into the first metal part ( 2 ) while said first insert ( 10 ) is being engaged by force.
8. An electrical connection according to claim 1 , wherein said second insert ( 20 ) has a second projecting periphery ( 21 ), said second projecting periphery ( 21 ) having a second maximum diameter (D 2 ) greater than a second inside diameter (D 22 ′) of said second opening ( 5 ).
9. An electrical connection according to claim 8 , wherein said second projecting periphery ( 21 ) has a second outer shoulder ( 22 , 22 ″) so as to present a second guide zone having a second minimum diameter equal to the second inside diameter (D 22 ″) of said second opening ( 5 ).
10. An electrical connection according to claim 9 , wherein said second insert ( 20 ) has a second bottom base ( 25 ) and a second top base ( 26 ) interconnected by a side wall ( 27 ) having symmetry of revolution, said second shoulder ( 22 , 22 ″) being opened to one of said second bottom or top bases ( 25 or 26 ).
11. An electrical connection according to claim 8 , wherein said second projecting periphery ( 21 ) has a plurality of teeth that are pushed into the second metal part ( 3 ) during engagement by force of said second insert ( 20 ).
12. An electrical connection according to claim 8 , wherein said first insert ( 10 ) has a first bottom base ( 15 ) and a first top base ( 16 ) interconnected by a first side wall ( 17 ) having symmetry of revolution about a first passage ( 18 ), said second insert ( 20 ) has a second bottom base ( 25 ) and a second top base ( 26 ) interconnected by a second side wall ( 27 ) having symmetry of revolution about a second passage ( 28 ), and said clamping means ( 30 ) secures said first bottom base ( 15 ) to said second top base ( 26 ) by passing through said first and second passages ( 18 , 28 ).
13. An electrical connection according to claim 1 , wherein said first top base ( 16 ) is countersunk to co-operate with a head of said clamping means ( 30 ).
14. An electrical connection according to claim 1 , wherein said first side wall ( 17 ) has a first groove ( 13 ).
15. An electrical connection according to claim 1 , wherein said second side wall ( 27 ) has a second groove ( 23 ).
16. An electrical connection according to claim 1 , wherein said first and second passages ( 18 , 28 ) have respective first and second nominal diameters (D 111 , D 222 ), and said first nominal diameter (D 111 ) is greater than said second nominal diameter (D 222 ).
17. An electrical connection according to claim 12 , wherein said second passage ( 28 ) passes part of the way through said second insert ( 20 ).
18. An electrically interconnected assembly comprising adjacent first and second metal parts ( 2 , 3 ) that are electrically insulated from each other, wherein said first and second metal parts ( 2 , 3 ) are connected together electrically by an electrical connection according to claim 1 .