Traction battery enclosure compression limiter
An exemplary traction battery assembly includes, among other things, a first portion of an enclosure, a second portion of the enclosure, and a compression limiter. The first portion is overmolded to the compression limiter. An exemplary method includes, among other things, securing a first portion of an enclosure for a traction battery to a second portion, and limiting compression of the first portion during the securing using a compression limiter. The first portion is overmolded to the compression limiter.
1. A traction battery assembly, comprising:
a first portion of an enclosure;
a second portion of the enclosure; and
a compression limiter, the first portion overmolded to the compression limiter, wherein the compression limiter is annular, and a radially outer surface of the compression limiter is formed with a groove that receives a tongue of the first portion such that portions of the compression limiter radially overlap with the tongue.
2. The assembly of claim 1 , wherein the first portion comprises a polymer-based material.
3. The assembly of claim 2 , wherein the polymer-based material is reinforced with a glass-fill.
4. The assembly of claim 2 , wherein the second portion is a metal or metal alloy.
5. The assembly of claim 2 , wherein the second portion is a polymer-based material.
6. The assembly of claim 1 , wherein the first portion is a lid and the second portion is a tray.
7. The assembly of claim 1 , wherein the first portion is a tray and the second portion is a lid.
8. A traction battery assembly, comprising:
a first portion of an enclosure;
a second portion of the enclosure; and
a compression limiter, the first portion overmolded to the compression limiter, wherein the first portion includes a housing section that defines at least part of an open area to receive a battery array, a peripheral flange about a perimeter of the housing section, and a plurality of stiffening ribs extending from the housing section to the peripheral flange, wherein the compression limiter is within the peripheral flange.
9. The assembly of claim 8 , further comprising a mechanical fastener that extends through an aperture in the compression limiter and secures the first portion to the second portion.
10. The assembly of claim 9 , wherein the mechanical fastener does not contact the first portion when securing the first portion to the second portion.
11. The assembly of claim 8 , wherein the compression limiter is a metal or metal alloy.
12. The assembly of claim 11 , wherein the compression limiter is an aluminum alloy.
13. A method, comprising:
securing a first portion of an enclosure for a traction battery to a second portion, and limiting compression of the first portion during the securing using a compression limiter, the first portion overmolded to the compression limiter, wherein the compression limiter is annular, and the first portion is overmolded to the compression limiter with a tongue of the first portion that extends into a groove of the compression limiter such that portions of the compression limiter radially overlap with the tongue.
14. The method of claim 13 , wherein the compression limiter is a metal or metal alloy, and the first portion is polymer based.
15. The method of claim 14 , wherein the second portion is a metal or metal alloy.
16. The method of claim 13 , further comprising securing the first portion to the second portion with a mechanical fastener that extends through an aperture in the compression limiter.
17. The method of claim 16 , further comprising threadably engaging the second portion with the mechanical fastener.
18. The method of claim 16 , further comprising securing without the mechanical fastener contacting the first portion.