Contact as module connector, connection assembly, battery cell and battery module with such contact assemblies
A contact assembly includes a contact element having a lead-through opening, a contact section extending in a tube-shaped manner along the lead-through opening and having a contact surface, and a collar section connected to the contact section and extending the lead-through opening in a sleeve-shaped manner, a busbar having a reception opening receiving the collar section, and a fastener inserted into the lead-through opening. The contact element has a first friction surface affixable with the busbar in the reception opening in a frictionally engaging manner and a second friction surface affixable in the reception opening with the busbar or in the lead-through opening with the fastener in a frictionally engaging manner. The first friction surface and the second friction surface are mutually offset in a radial direction with respect to the lead-through opening.
1 . A contact assembly, comprising:
a contact element having a lead-through opening, a contact section extending in a tube-shaped manner along the lead-through opening and having a contact surface, and a collar section connected to the contact section and extending the lead-through opening in a sleeve-shaped manner;
a busbar having a reception opening receiving the collar section; and
a fastener inserted into the lead-through opening, the contact element has a first friction surface affixable with the busbar in the reception opening in a frictionally engaging manner and a second friction surface affixable in the reception opening with the busbar or in the lead-through opening with the fastener in a frictionally engaging manner, the first friction surface and the second friction surface are mutually offset in a radial direction with respect to the lead-through opening.
2 . The contact assembly of claim 1 , wherein the fastener fastens the contact assembly to a counterpart complementary to the fastener.
3 . The contact assembly of claim 1 , wherein the contact surface of the contact section contacts a counter contact.
4 . The contact assembly of claim 1 , wherein the contact element has a shoulder between the contact section and the collar section.
5 . The contact assembly of claim 4 , wherein the contact element abuts the busbar with the shoulder.
6 . The contact assembly of claim 1 , wherein the fastener has a threaded section and is a screw with an external thread on the threaded section.
7 . The contact assembly of claim 1 , wherein the fastener has a threaded section and is a threaded sleeve with an internal thread on the threaded section.
8 . The contact assembly of claim 1 , wherein the fastener has a support section extending radially outward, the support section rests on the busbar.
9 . The contact assembly of claim 1 , wherein the collar section is shorter than the reception opening.
10 . The contact assembly of claim 1 , wherein the fastener has a knurled section and the collar section is deformed by the knurled section after insertion of the fastener into the lead-through opening.
11 . The contact assembly of claim 10 , wherein the knurled section is shorter than the reception opening.
12 . The contact assembly of claim 1 , wherein the fastener is rotatably arranged in the lead-through opening.
13 . The contact assembly of claim 1 , wherein the reception opening is a stepped bore.
14 . The contact assembly of claim 1 , wherein the reception opening has a material recess on a circumference of the reception opening.
15 . The contact assembly of claim 1 , wherein the first friction surface is formed on an outer surface of the contact element.
16 . The contact assembly of claim 15 , wherein the second friction surface is formed on the outer surface of the contact element or on an inner surface of the contact element.
17 . A module connector, comprising:
a contact assembly according to claim 1 ; and
a contact protection housing receiving the contact assembly.
18 . A connection assembly, comprising:
a first contact assembly according to claim 1 ; and
a second contact assembly according to claim 1 , the fastener of the first contact assembly is complementary to the fastener of the second contact assembly.
19 . A battery cell, comprising:
an electrode; and
a battery connection configured as a contact assembly according to claim 1 , the busbar of the contact assembly is electrically conductively connected to the electrode.
20 . A battery module, comprising:
a battery cell including an electrode and a battery connection; and
a module connector including a contact assembly according to claim 1 , a fastener of the battery connection is complementary to the fastener of the contact assembly of the module connector.