1. A battery pack, comprising:
a first sub-housing (100) and a second sub-housing (300), wherein
5 the first sub-housing and the second sub-housing each comprising a mating
surface (102, 302);
a groove (104) formed in the first sub-housing mating surface and
a corresponding tab (304) formed in the second sub-housing mating
surface;
10 a first O-ring (506) positioned in the groove;
a plurality of bosses (106) formed at multiple interior regions
contiguous to the first sub-housing mating surface, each of the boss is
enveloped by a second O-ring (508);
a plurality of fasteners (510), wherein each of the fasteners, results
15 in the simultaneous compression of the first O-ring and the corresponding
second-ring when fastened to effect coupling of the first sub-housing and
the second sub-housing, defining an internal cavity.
2. The battery pack as claimed in claim 1, wherein the boss is a two-stepped
boss and the second O-ring envelops the two-stepped boss at a transition
20 region (206), wherein the transition region is where first step (202) of the
two-stepped boss transitions to second step (204).
3. The battery pack as claimed in claim 1, wherein the first sub-housing
comprises a plurality of orifices formed in an exterior region.
4. The battery pack as claimed in claim 1, wherein the second sub-housing
25 comprises a plurality of flanged bosses (306, 400) corresponding to the
plurality of bosses, formed at multiple interior regions contiguous to the
second sub-housing mating surface.
5. The battery pack as claimed in claim 1, wherein the second sub-housing
comprises a plurality of inserts (602d), each over-moulded in the second
30 sub-housing at a terminal portion, distinct from a flanged portion (404) of
each of the flanged bosses.
14
6. The battery pack as claimed in claim 1, wherein the orifices, bosses, flanged
bosses and inserts are coaxial, facilitating the traversal and seizing of the
fastener in the corresponding insert.
7. The battery pack as claimed in claim 1, wherein the simultaneous
5 compression of the first O-ring and the second O-ring comprises the first
O-ring compressed by the tab and the second O-ring compressed by the
flanged portion of the corresponding flanged boss.
8. The battery pack as claimed in claim 1, wherein the internal cavity is to
serve as receptacle for battery cells, electrical and electronic components.
10 9. The battery pack as claimed in claim 5, wherein the inserts are made from
brass.